WO2007139202A1 - 電力制御装置およびそれを備えた車両 - Google Patents
電力制御装置およびそれを備えた車両 Download PDFInfo
- Publication number
- WO2007139202A1 WO2007139202A1 PCT/JP2007/061141 JP2007061141W WO2007139202A1 WO 2007139202 A1 WO2007139202 A1 WO 2007139202A1 JP 2007061141 W JP2007061141 W JP 2007061141W WO 2007139202 A1 WO2007139202 A1 WO 2007139202A1
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- WIPO (PCT)
- Prior art keywords
- voltage
- power
- phase
- current
- inverter
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/007—Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
- B60L53/24—Using the vehicle's propulsion converter for charging
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in networks by storage of energy
- H02J3/32—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means
- H02J3/322—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/70—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/731—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
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- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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- B60L2210/00—Converter types
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- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
Definitions
- Patent application title Electric power control apparatus and vehicle equipped with the same
- the present invention relates to a power control device and a vehicle including the same, and more particularly to a power control device that transfers power between a commercial power source and a power storage device mounted on the vehicle, and a vehicle including the power control device.
- Japanese Laid-Open Patent Publication No. 4-29 5 20 2 discloses a motor drive device capable of transferring power between an AC power supply outside the vehicle and an in-vehicle DC power supply.
- This motor drive device includes a storage battery, inverters I A and I B, induction motors MA and MB, and a control unit.
- Induction motors MA and MB include Y-connected feeders C A and C B, respectively.
- An input Z output port is connected to neutral points NA and NB of windings CA and CB through an EMI filter.
- Inverters I A and I B are provided for induction motors MA and MB, respectively, and are connected to feeders C A and C B, respectively.
- Inverters I A and I B are connected in parallel to the storage battery.
- the AC power applied between the neutral points NA and NB of the feeders CA and CB from the single-phase power supply connected to the input / output port is converted into DC power.
- the storage battery can be charged.
- AC power with a sine wave adjusted can be generated between neutral points NA and NB, and the generated AC power can be output to an external device connected to the input / output port.
- the purpose of the present invention is a power control device 2 that transfers power to and from an AC power source through the neutral point of two AC motors.
- An object of the present invention is to provide a power control device and a vehicle equipped with the power control device that can transmit and receive power without interference to the drive control of the motor.
- Another object of the present invention is a power control device that transfers power to and from an AC power source via the neutral point of two AC motors, and a power control device that can transfer power more efficiently. It is to provide a vehicle equipped with.
- the power control device is a power control device capable of executing either one of charging of a power storage device mounted on a vehicle from an AC power supply outside the vehicle and power feeding from the power storage device to the AC power supply.
- the first AC rotating electric machine includes the first multiphase wire connected in a star shape as a stator winding.
- the second AC rotating electric machine includes a second multiphase winding connected in a star shape as a stator winding.
- the first inverter is connected to the first multiphase feeder, and performs power conversion between the first AC rotating electric machine and the power storage device.
- the second inverter is connected to the second multiphase feeder, and performs power conversion between the second AC rotating electric machine and the power storage device.
- the power line pair is connected to the first neutral point of the first multiphase feeder and the second neutral point of the second polyphase feeder, and the first and second neutral points and the AC power source It is configured to be able to exchange power between the two.
- the first voltage detection device detects the voltage of the AC power supply.
- the drip flow command generator detects the effective value and phase of the AC power supply voltage based on the voltage detection value from the first voltage detection device, and the charge / discharge power to the power storage device as well as the detected effective value and phase.
- a command value for the current flowing through the pair of power lines, the phase of which is adjusted with respect to the voltage of the AC power supply, is generated.
- the inverter control unit controls the zero-phase voltage of at least one of the first and second inverters based on the current command value generated by the current command generation unit.
- the current command generator generates a current command value in phase with the voltage of the AC power supply. Generate.
- the current command generation unit includes an effective value calculation unit, a phase detection unit, a sine wave generation unit, and a calculation unit.
- the effective value calculation unit calculates the effective value of the AC power supply voltage based on the detected voltage value.
- the phase detection unit detects the voltage phase of the AC power supply based on the voltage detection value.
- the sine wave generation unit generates a sine wave whose phase is adjusted with respect to the phase detected by the phase detection unit.
- the calculation unit divides the charge / discharge power command value by the effective value, and multiplies the calculation result by the sine wave from the sine wave generation unit to generate a current command value. More preferably, the sine wave generation unit generates a sine wave in phase with the phase detected by the phase detection unit.
- the inverter control unit controls the zero-phase voltage of one of the first and second inverters based on the current command value, and controls the zero-phase voltage of the other inverter to a fixed value.
- the inverter control unit may turn on the upper arm of each phase arm of the other inverter. If the potential of the neutral point corresponding to one inverter is lower than the potential of the neutral point corresponding to the other inverter, turn on the upper arm of each phase arm of the other inverter. Turn on and lower arm off.
- the inverter control unit turns off the upper arm and the lower arm of each phase arm of the other inverter when the power storage device is charged from the AC power supply. More preferably, the inverter control unit periodically replaces the inverter that controls the zero-phase voltage based on the current command value with the first and second inverters.
- the inverter control unit sets the zero-phase voltage of the first and second inverters so that the zero-phase voltage of the second inverter becomes a voltage obtained by inverting the sign of the zero-phase voltage of the first inverter. Control based on the current command value.
- the inverter control unit performs the first drive for switching the first inverter in accordance with the magnitude relationship between the predetermined carrier wave and the first signal wave generated based on the current command value. Generates a signal and switches the second inverter according to the magnitude relationship between the carrier wave and the second signal wave whose sign is inverted. A second drive signal for generating the second drive signal is generated.
- the inverter control unit performs switching control for switching the first inverter according to a magnitude relationship between a predetermined first carrier wave and a signal wave generated based on the current command value.
- 1 drive signal is generated
- the 2nd drive signal for switching control of the 2nd inverter is generated according to the magnitude relationship between the 2nd carrier wave whose sign is inverted from the 1st carrier wave and the signal wave To do.
- the inverter control unit performs a switching control of the first inverter according to a magnitude relationship between a predetermined carrier wave and a signal wave generated based on the current key value. of generating a drive signal, complementary changes with respect to the first drive signal, a second drive signal for the second inverter to Suitsuchingu control to generate.
- the power control device further includes a first current detection device.
- the first current detection device detects the current flowing through the power line pair.
- the inverter control unit includes a current control unit and a drive signal generation unit.
- the current control unit generates a zero-phase voltage command for the first and second inverters based on a deviation between the current detection value from the first current detection device and the current command value.
- the drive signal generation example 5 generates a drive signal for driving the first and second inverters based on the generated zero-phase voltage command.
- the power control device further includes a plurality of second current detection devices.
- the plurality of second current detection devices detect a current flowing in each phase of each of the first and second AC rotating electric machines.
- the inverter control unit includes a plurality of current control units and a drive signal generation unit.
- the plurality of current control units are provided corresponding to the respective phases of the first and second AC rotating electric machines, and the current detection value and the current command value from the corresponding second current detection device are equally distributed to each phase. Based on the deviation from the allocated phase current command value, the voltage command for the corresponding phase in the corresponding inverter is generated.
- the drive signal generation unit generates a drive signal for driving the first and second inverters based on the generated phase voltage commands.
- each of the current control unit or the plurality of current control units includes an internal model compensation unit.
- the internal model compensator calculates the control compensation amount using a sine wave function corresponding to the current command value.
- the internal model compensator includes first and second average value calculators and a calculator.
- the first average value calculator calculates the average value of the current command value or the magnitude of each phase current command value.
- the second average value calculator calculates an average value of the magnitudes of the current detection values.
- the calculation unit multiplies the difference between the output from the first average value calculation unit and the output from the second average value calculation unit by the gain, and further multiplies the calculation result by a sine wave function in phase with the AC power supply.
- the control compensation amount is calculated.
- each of the current control unit or the plurality of current controls ⁇ includes a repetitive control unit.
- the repetitive control unit sequentially calculates a zero-phase voltage command or each phase voltage command for each phase of the AC power source based on the deviation of the AC power source one cycle before.
- the power control device further includes a second voltage detection device.
- the second voltage detection device detects a DC voltage applied to the first and second inverters.
- the current command generation unit includes a voltage control unit.
- the voltage control unit corrects the charge / discharge power command value so as to control the DC voltage to the target voltage based on the deviation between the voltage detection value from the second voltage detection device and the target voltage of the DC voltage.
- the power control device further includes a boost converter, a second voltage detection device, and a converter control unit.
- the boost converter is provided between the power storage device and the first and second inverters.
- the second voltage detection device detects a DC voltage applied to the first and second inverters.
- the converter control unit controls the boost converter so as to control the DC voltage to the target voltage based on the voltage detection value from the second voltage detection device.
- the power control device further includes a third 'current detection device.
- the third current detection device detects a current input to and output from the power storage device.
- the converter control unit includes a voltage control unit and a current control unit.
- the voltage control unit is configured to control the DC voltage to the target voltage based on the voltage detection value from the second voltage detection device.
- the current control unit is configured to control the current input / output to / from the power storage device to the target current based on the current detection value from the third current detection device. .
- the converter control unit stops the boost converter when a deviation between the current detection value and the target current exceeds a threshold value.
- the vehicle includes at least the first and second AC rotating electric machines.
- the vehicle is provided with a wheel that receives driving torque from one side and any of the power control devices described above.
- the current command generator generates a power line pair based on the effective value and phase of the AC power supply voltage detected based on the voltage detection value from the first voltage detection device and the charge / discharge power command value for the power storage device. It generates a command value for the current to be passed and whose phase is adjusted with respect to the voltage of the AC power supply.
- the current command generator is not based on the detected voltage waveform of the AC power supply that may contain harmonics or fluctuation components, but detects the effective value and phase of the AC power supply voltage, and only the sine of the fundamental wave Since the current command value is generated using the wave waveform, there is no harmonic component or fluctuation component of the AC power supply, and the current command value that can be charged or supplied with power factor 1 to the AC power supply is generated. it can. Since the inverter control unit controls the first and second inverters based on the generated current command value, generation of reactive power and harmonic current due to harmonic components and fluctuation components is suppressed. .
- the present invention it is possible to efficiently charge the power storage device from the AC power source and to supply power from the power storage device to the AC power source. Moreover, even if the voltage level of the AC power supply is switched, it is possible to secure power corresponding to the set charge / discharge power command value. In other words, even in countries with different commercial power supply voltage levels, constant charging power and feed power can be obtained without changing the system settings. In addition, losses due to harmonics and fluctuation components and generation of reactive power are suppressed, and a highly efficient and compact device can be realized.
- the inverter control unit controls the zero-phase voltage of at least one of the first and second inverters based on the current command value, this control affects the torque of the first and second AC rotating electric machines. Not give. Therefore, according to the present invention, it is possible to perform power control with the AC power source without interference with torque control of the first and second AC rotating electric machines. That is, it is possible to charge the power storage device from the AC power source and to supply power from the power storage device to the AC power source while driving the first and second AC rotating electric machines.
- FIG. 1 is an overall block diagram of a hybrid vehicle shown as an example of a vehicle according to Embodiment 1 of the present invention.
- Figure 2 is a functional block diagram of ECU shown in Fig.1.
- FIG. 3 is a detailed functional block diagram of the current command generator shown in FIG.
- FIG. 4 is a detailed functional block diagram of the inverter control unit shown in FIG.
- FIG. 5 is a zero-phase equivalent circuit diagram of the inverter and motor generator shown in FIG.
- FIG. 6 is a phasor diagram that realizes a power factor of 1 when charging the power storage device from the commercial power source in the zero-phase equivalent circuit shown in FIG.
- FIG. 7 is a phasor diagram that realizes a power factor of 1 in the zero-phase equivalent circuit shown in FIG. 5 when power is supplied from the power storage device to the commercial power supply.
- FIG. 8 is a diagram showing the relationship between the voltage of the commercial power source and the direction of the current flowing through the power line, and charging of the power storage device from the commercial power source and power feeding from the power storage device to the commercial power source.
- FIG. 9 is a first diagram showing a current flow when charging the power storage device from the commercial power source.
- FIG. 10 is a second diagram showing a current flow when charging the power storage device from the commercial power source.
- FIG. 11 is a third diagram showing the flow of current when charging the power storage device from the commercial power source.
- FIG. 12 is a fourth diagram showing the flow of current when charging the power storage device from the commercial power source.
- FIG. 13 is a first diagram showing the flow of current when power is supplied from the power storage device to the commercial power supply.
- FIG. 14 is a second diagram showing the flow of current when power is supplied from the power storage device to commercial power source 1.
- FIG. 15 is a detailed functional block diagram of the inverter control unit according to the second embodiment.
- FIG. 16 is a waveform diagram of a signal generated by the inverter control unit shown in FIG. 15 and a voltage difference generated between the neutral points according to the signal.
- FIG. 17 is a waveform diagram of a P WM signal generated in Modification 1 of Embodiment 2 and a voltage difference generated between neutral points in accordance with the P WM signal.
- FIG. 18 is a waveform diagram of a PWM signal generated in the second modification of the second embodiment and a voltage difference generated between neutral points according to the PWM signal.
- FIG. 19 is a control block diagram showing the configuration of the current control unit in the third embodiment.
- FIG. 20 is a control block diagram showing an example of the configuration of the internal model compensator shown in FIG.
- FIG. 21 is a control block diagram showing another configuration example of the internal model compensator shown in FIG.
- Figure 22 shows the distortion of the waveform that occurs periodically due to the dead time of the inverter.
- FIG. 23 is a control block diagram showing the configuration of the current control unit in the fourth embodiment.
- FIG. 24 is a detailed functional block diagram of the inverter control unit according to the fifth embodiment.
- FIG. 25 is a detailed functional block diagram of the current command generation unit in the sixth embodiment.
- FIG. 26 is an overall block diagram of a hybrid vehicle shown as an example of a vehicle according to Embodiment 7 of the present invention.
- FIG. 27 is a functional block diagram of ECU shown in FIG.
- FIG. 28 is a detailed functional block diagram of the converter control unit shown in FIG. Figure 29 is a detailed functional block diagram of the converter controller in the eighth embodiment. is there.
- FIG. 30 is a detailed functional block diagram of the converter control unit according to the ninth embodiment. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is an overall block diagram of a hybrid vehicle shown as an example of a vehicle according to Embodiment 1 of the present invention.
- hybrid vehicle 100 includes an engine 4, motor generators MG 1 and MG 2, a power split mechanism 3, and wheels 2.
- Hybrid vehicle 100 further includes power storage device B, inverters 20 and 30, and ECU (Electronic Control Unit) 60.
- hybrid vehicle 100 includes capacitor C 1, power supply line PL 1, ground line SL, U-phase lines UL 1 and UL 2, V-phase lines VL 1 and VL 2, and W-phase lines WL 1 and WL 2.
- a voltage sensor 72 and current sensors 82 and 84 Further, hybrid vehicle 100 further includes power lines NL 1 and N L 2, connector 50, capacitor C 2, voltage sensor 74, and current sensor 86.
- This hybrid vehicle 100 runs using engine 4 and motor generator MG 2 as power sources.
- Power pollution mechanism 3 is coupled to engine 4 and motor generators MG1 and MG2 to distribute power between them.
- a planetary gear mechanism having three rotating shafts of a sun gear, a planetary carrier and a ring gear can be used. These three rotary shafts are connected to the rotary shafts of engine 4 and motor generators MG 1 and MG 2, respectively.
- the engine 4 and the motor generators MG 1 and MG 2 can be mechanically connected to the power split mechanism 3 by making the rotor of the motor generator MG 1 hollow and passing the crankshaft of the engine 4 through the center thereof.
- the rotating shaft of motor generator MG 2 has a reduction gear and operating gear (not shown). It is connected to wheel 2 by a motor. Further, a reduction gear for the rotation shaft of motor generator MG 2 may be further incorporated in power split device 3.
- the motor generator MG 1 operates as a generator driven by the engine 4 and is incorporated in the hybrid vehicle 10 ° as an electric motor that can start the engine 4, and the motor generator MG 2 It is incorporated in a hybrid vehicle 100 as an electric motor for driving the wheels 2.
- the positive electrode and the negative electrode of power storage device B are connected to power supply line P L 1 and ground line S L, respectively.
- Capacitor C 1 is connected between power line P L 1 and ground line S.
- Inverter 20 includes a U-phase arm 22, a V-phase arm 24, and a W-phase arm 26.
- U-phase arm 2 2, V-phase arm 2 4, and W-phase arm 2 6 are connected in parallel between power supply line P L 1 and ground line S L.
- U-phase arm 2 2 consists of npn transistors Q 1 1 and Q 1 2 connected in series.
- V-phase arm 2 4 consists of np ⁇ -type transistors Q 1 3 and Q 1 4 connected in series.
- the W-phase arm 26 consists of ⁇ ⁇ ⁇ -type transistors Q 1 5 and Q 1 6 connected in series. Diodes D 1 1 to D 16 that flow current from the emitter to the collector side are connected between the collector emitters of the ⁇ ⁇ ⁇ type transistors Q 11 to Q 16, respectively.
- an IGBT Insulated Gate Bipolar Transistor
- a power switching element such as Field-Effect Transistor can be used.
- Motor generator MG 1 includes a three-phase coin 12 as a stator coin.
- One end of the U-phase coil U 1, the V-phase coil V 1 and the W-phase coil W 1 forming the 3-phase coil 1 2 is connected to each other to form a neutral point N 1, and the U-phase coil U l, V-phase
- the other ends of coil V 1 and W-phase coil W 1 are connected to the connection points of the upper and lower arms of each of U-phase arm 22, V-phase arm 24 and W-phase arm 26 of inverter 20. .
- Inverter 30 has U-phase arm 3 2, V-phase arm 3 4 and W-phase arm 3 6 Including.
- Motor generator MG 2 includes a three-phase coil 14 as a stator coil. The configurations of inverter 30 and motor generator MG 2 are the same as inverter 2 ° and motor generator MG 1, respectively.
- One end of power line NL 1 is connected to neutral point N 1 of three-phase coil 12, and the other end is connected to connector 50. Further, one end of the power line NL 2 is connected to the neutral point N 2 of the three-phase coil 14, and the other end is connected to the connector 50. Capacitor C 2 is connected between power line NL 1 and power line NL 2.
- the power storage device B is a DC power source that can be charged and discharged, and is composed of, for example, a secondary battery such as nickel metal hydride ion. Power storage device B outputs DC power to capacitor C 1 and is charged by inverters 20 and / or 30. Note that a large-capacity capacitor may be used as the power storage device B.
- Capacitor C 1 smoothes voltage fluctuations between power line P L 1 and ground line S L.
- the voltage sensor 72 detects the voltage across the capacitor C 1, that is, the voltage VDC of the power line PL 1 with respect to the ground line S L, and outputs the detected voltage VD C to the ECU 60.
- Inverter 20 converts the DC voltage received from capacitor C 1 into a three-phase AC voltage based on signal PWM 1 from ECU 60, and outputs the converted three-phase AC voltage to motor generator MG 1.
- the inverter 20 converts the three-phase AC voltage generated by the motor generator MG 1 in response to the power of the engine 4 into a DC voltage based on the signal PWM1 from the ECU 60, and converts the converted DC voltage to the power line. Output to PL 1.
- Inverter 30 converts the DC voltage received from capacitor C 1 into a three-phase AC voltage based on signal PWM 2 from ECU 60, and outputs the converted three-phase AC voltage to motor generator MG 2. Further, the inverter 30 converts the three-phase AC voltage generated by the motor generator MG 2 by receiving the rotational force from the wheel 2 during regenerative braking of the vehicle into a DC voltage based on the signal PWM 2 from the ECU 60. The converted DC voltage is output to the power supply line PL1.
- the inverters 20 and 30 convert the AC power supplied from the commercial power supply 90 to the neutral points N 1 and N 2 via the power lines NL 1 and NL 2 into DC power by the method described later. The power is converted and output to the power line PL 1 to charge the power storage device B. Further, when power supply from power storage device B to commercial power supply 90 is required, inverters 20 and 30 convert DC power from power storage device B to AC power by a method described later from neutral points Nl and N2. Output to commercial power supply 90 via power lines NL 1 and NL 2. Capacitor C 2 eliminates the effect of ripple on commercial power supply 90 connected to connector 50.
- the voltage sensor 74 detects the voltage VAC between the power lines NL 1 and NL 2 and outputs the detected voltage VAC to the ECU 60.
- the current sensor 86 detects the current I AC flowing through the power line NL 2 and outputs the detected current I AC to the ECU 60. Note that the current flowing through the power line NL 1 may be detected by the current sensor 86.
- Each of the motor generators MG 1 and MG 2 is a “three-phase AC rotating electric machine”, for example, a three-phase AC synchronous motor generator.
- Motor generator MG 1 is regeneratively driven by inverter 20 and outputs to inverter 20 a three-phase AC voltage generated using the power of engine 4.
- Motor generator MG 1 is driven by inverter 20 to start cranking engine 4 when engine 4 is started.
- Motor generator MG 2 is driven in a row by inverter 30 and generates a driving force for driving wheel 2.
- Motor generator MG 2 is regeneratively driven by inverter 30 during regenerative braking of the vehicle, and outputs a three-phase AC voltage generated using the rotational force received from wheel 2 to inverter 30.
- Current sensor 82 detects motor current I 1 flowing through each phase coil of motor generator MG 1, and outputs the detected motor current I 1 to ECU 60.
- Current sensor 84 detects motor current I 2 flowing through each phase coil of motor generator MG 2 and outputs the detected motor current I 2 to ECU 60.
- the ECU 60 generates signals PWM1 and PWM2 for driving the inverters 20 and 30, respectively, and outputs the generated signals PWM1 and PWM2 to the inverters 20 and 30, respectively.
- connector 92 of commercial power supply 90 is connected to connector 50 and Therefore, when charging of the power storage device B is requested from the commercial power source 90, the ECU 60 converts the AC power given from the commercial power source 90 to the neutral points N 1 and N 2 into DC power by the method described later. Then, inverters 20 and 30 are controlled to charge power storage device B.
- the ECU 60 performs the power storage device B by the method described later.
- the inverters 20 and 30 are controlled so that the DC power from the converter is converted into AC power and output from the neutral points Nl and N2 to the commercial power supply 90.
- the signal AC is a signal for requesting charging of the power storage device B from the commercial power supply 90 or power supply from the power storage device B to the commercial power supply 90. For example, charging of the power storage device B or power supply to the commercial power supply 90 is performed.
- an input device not shown, the same shall apply hereinafter
- FIG. 2 is a functional block diagram of the ECU 60 shown in FIG.
- E C U 60 includes a current command generation unit 62 and an inverter control unit 64.
- the current command generation unit 62 has a power factor of 1 for the commercial power source 90 based on the charge / discharge power command value PR received from the vehicle ECU (not shown, the same applies hereinafter) and the voltage VAC from the voltage sensor 74.
- the charge / discharge power command value PR is based on the sign of the charge power command value of power storage device B when power storage device B is charged from commercial power supply 90 and when power is supplied from power storage device B to commercial power supply 90.
- the discharge power command value of power storage device B can be indicated.
- the inverter control unit 64 is configured to receive torque command values TR 1 and TR2 of the motor generators MG 1 and MG 2 received from the vehicle ECU, motor currents II and I 2 from the current sensors 82 and 84, voltage VDC from the voltage sensor 72, current sensor Based on the current IAC from 86, the signal AC, and the current command IR from the current command generator 62, the signal PWM1 and the inverter 30 for turning on / off the npn transistors Q 1 1 to Q 16 of the inverter 20 Generates signal PWM2 for turning on and off npn transistors Q21 to Q26, and outputs the generated signals PWM1 and PWM2 to inverters 20 and 30, respectively.
- current command generation unit 6 2 includes RMS value calculation unit 1 0 2, phase detection unit 1 0 4, sine wave generation unit 1 0 6, division unit 1 0 8, and multiplication unit. 1 1 0 and the others.
- the effective direct calculation unit 102 detects the peak voltage of the voltage VAC, and calculates the effective value of the voltage VAC based on the detected peak voltage.
- the phase detector 1 0 4 detects the zero-cross point of the voltage VAC, and detects the phase of the voltage V AC based on the detected zero-cross point.
- the sine wave generation unit 10 6 generates a sine wave having the same phase as the voltage V AC based on the phase of the voltage V A C detected by the phase detection unit 10 4.
- the sine wave generation unit 106 can generate a sine wave having the same phase as the voltage V AC based on the phase from the phase detection unit 104 using, for example, a table of sine wave functions.
- the division unit 10 8 divides the charge / discharge power command value PR by the effective value of the voltage V AC of the effective value calculation unit 100 and outputs the calculation result to the multiplication unit 1 1 0.
- Multiplier 1 1 0 multiplies the operation result of division unit 1 0 8 by the sine wave from sine wave generator 1 0.6 and outputs the operation result as current command I R. '
- the current command IR generated in this way does not include harmonic components and fluctuation components of the commercial power supply 90
- the commercial power supply 90 Reactive power and harmonic currents equivalent to the harmonic components and fluctuation components of are not generated.
- the current command I R is in phase with the commercial power supply 90 and has a power factor of 1 with respect to the voltage of the commercial power supply 90. Therefore, charging of power storage device B from commercial power source 90 or power feeding from power storage device B to commercial power source 90 can be performed efficiently. It is also possible to add a reactive power compensation function for controlling the reactive power by adjusting the phase of the sine wave generated based on the phase of the voltage V A C with respect to the voltage V A C.
- FIG. 4 is a detailed functional block diagram of the inverter control unit 64 shown in FIG.
- inverter control unit 6 4 includes motor control phase voltage calculation unit 1 1 '2, 1 1 4, subtraction unit 1 1 6, current control unit 1 1 8, and addition unit 1 2 0 and a P WM control unit 1 2 2, 1 2 4.
- Motor control phase voltage calculator 1 1 2 is the motor generator MG 1 torque command value TR 1, motor current I 1 and voltage VDC Based on the above, a voltage command to be applied to each phase coil of motor generator MG 1 is calculated, and the calculated phase voltage command is output to calculation unit 120.
- Subtraction unit 1 16 subtracts current I AC from current command I R received from current command generation unit 62, and outputs the calculation result to current control unit 118.
- the current control unit 1 18 When the signal AC is activated, the current control unit 1 18 generates a zero-phase voltage command E 0 for causing the current I AC to follow the current command IR based on the deviation between the current command IR and the current I AC. The generated zero-phase voltage command E0. Is output to the calorie calculation unit 120. In this current control unit 1 1 8, for example, proportional integral control (P I control) is performed.
- P I control proportional integral control
- the current control unit 118 When the signal AC is deactivated, the current control unit 118 is deactivated and outputs the zero-phase voltage command EO as 0.
- Adder 1 20 adds the zero-phase voltage command EO from current controller 1 1 8 to each phase voltage command from motor control phase voltage calculator 1 12 and outputs the calculation result to PWM controller 1 22 To do. Based on the voltage command from the adding unit 120, the PWM control unit 122 generates a signal PWM1 for actually turning on / off each npn transistor Q11 to Q16 of the inverter 20, and the generated signal PWM1 is output to each ⁇ ⁇ ⁇ transistor Q 1 1 to Q 16 of inverter 20.
- the zero-phase voltage command E 0 Since the zero-phase voltage command EO from the current control unit 118 is added to each phase voltage command, the zero-phase voltage command E 0 itself does not contribute to the rotational torque of the motor generator MG 1. Therefore, there is no interference with the torque control of motor generator MG1 based on each phase voltage command from motor control phase voltage calculation unit 112, charging control of power storage device B from commercial power supply 90 or commercial power supply 90 from power storage device B It is possible to control power supply to the.
- the motor control phase voltage calculation unit 1 14 calculates a voltage command to be applied to each phase coil of the motor generator MG 2 based on the torque command value TR 2 of the motor generator MG 2, the motor current I 2 and the voltage VDC.
- the calculated phase voltage command is output to the PWM control unit 124.
- the PWM control unit 124 generates a signal PWM2 for actually turning on / off each npn transistor Q21 to Q26 of the inverter 30 based on each phase voltage command from the motor control phase voltage calculation unit 1 14
- the generated signal PWM2 Output to each npn transistor Q 2 1 -Q 2 6 of barter 30.
- the zero-phase voltage command E 0 may be added to each phase voltage command from the motor control phase voltage calculation unit 1 14.
- the potential of the neutral point N2 of the three-phase coil 1 4 corresponding to the inverter 3 0 varies according to the zero-phase voltage command E 0.
- the zero-phase voltage command E 0 is Does not contribute to the rotational torque of motor generator MG 2. Therefore, there is no interference with the torque control of motor generator MG 2 based on the phase voltage command from motor control phase voltage calculation unit 1 1 4, charging control of power storage device B from commercial power source 90 or commercial control from power storage device B Power supply to the power supply 90 can be controlled.
- FIG. 5 is a zero-phase equivalent circuit diagram of inverters 20 and 30 and motor generators MG 1 and MG 2 shown in FIG.
- the power source 1 5 0 is formed by the inverters 2 0 and 3 0, and the voltage V indicates the voltage between the neutral points N 1 and N 2.
- Voltage ⁇ indicates the voltage of commercial power supply 90.
- Impedance 15 2 indicates the sum of the leakage impedance of motor generators MG 1 and MG 2 and the impedance on the commercial power supply 90 side, and the magnitude is X.
- a current I indicates a current flowing between the inverters 20 and 30 and the commercial power supply 90, and corresponds to the current I AC described above.
- FIG. 6 is a phasor diagram for realizing a power factor of 1 when charging power storage device B from commercial power source 90 in the zero-phase equivalent circuit shown in FIG.
- vector E represents a voltage phasor for commercial power 90.
- Vector I represents the current phasor flowing between inverters 20 and 30 and commercial power supply 90.
- the vector j ⁇ ⁇ I represents the voltage phasor with impedance 1 5 2.
- Vector V indicates the voltage pheasor between neutral point N l and ⁇ 2.
- the charging operation obtains power from the commercial power supply 90.
- the voltage V between the neutral points ⁇ 1 and ⁇ 2 is controlled by delaying the phase ⁇ from the voltage ⁇ of the commercial power source 90 by a phase ⁇ . Power factor 1 W
- FIG. 7 is a phasor diagram that realizes a power factor of 1 when power is supplied from power storage device B to commercial power supply 90 in the zero-phase equivalent circuit shown in FIG.
- FIG. 7 by controlling the voltage V between the neutral points N 1 and N 2 with a phase advance with respect to the voltage E of the commercial power supply 90, power supply operation for outputting power to the commercial power supply 90 Become. Based on this feather relationship, the voltage V between the neutral points N 1 and N 2 is controlled by advancing the phase ⁇ with respect to the voltage E of the commercial power source 90, thereby controlling the commercial power source 9 Power can be supplied with a power factor of 1 for 0.
- Figure 8 shows the voltage VA C of commercial power source 90 and the current IAC flowing through power lines NL 1 and NL 2 and the charging of power storage device B from commercial power source 90 and power supply from commercial power source B to commercial power source 90 It is the figure which showed the relationship.
- voltage V AC when the potential of power line N L 1 is higher than the potential of power line N L 2, voltage V AC is positive. Also, when current flows from the neutral point N 1 to the power line N 1 (when current flows from the power line N L 2 to the neutral point N 2), the current I AC is positive.
- first quadrant When both voltage VA C and current I AC are positive, power is being supplied to commercial power supply 90 (power supply), which is hereinafter referred to as “first quadrant”.
- second quadrant When the voltage VA C is negative and the current I AC is positive, power is being obtained from the commercial power supply 90 (charging), which will be referred to as “second quadrant” below.
- FIGS. 9 to 12 are diagrams showing the flow of current when charging power storage device B from commercial power supply 90.
- FIGS. 9 to 12 and FIG. 13 and FIG. 14 to be described later showing the flow of current when power is supplied from the power storage device B to the commercial power source 90.
- the inverters 20 and 30 and the motor shown in FIG. A zero phase equivalent circuit of generators MG 1 and MG 2 is shown.
- the upper arm in each inverter 20 and 30 These three transistors can be regarded as the same switching state (all on or off), and the three transistors in the lower arm can also be regarded as the same switching state.
- np n- type transistors Q ll, Q 13 and Q 15 are shown together as upper arm 2 OA
- npn-type transistors Q 12, Q 14 and Q 16 of inverter 20 are shown together as lower arm 20 B Yes.
- the npn transistors Q21, Q 23 and Q 25 of the inverter 30 are collectively shown as the upper arm 3 OA
- the npn transistors Q 22, Q 24 and Q 26 of the inverter 30 are collectively shown as the lower arm 30 B. It is shown.
- Figures 9 and 10 show the current flow in the fourth quadrant shown in Figure 8.
- inverter 20 is operated in PWM based on zero-phase voltage command EO, and inverter 30 does not receive zero-phase voltage command E 0.
- the inverter 30 is always off. 'When the upper arm 20 A of the inverter 20 is turned off and the lower arm 20 B is turned on, the neutral point N 1 from the commercial power supply 90, the lower arm 20B, the ground line SL, the lower arm 30 B of the inverter 3 0 and Current flows through neutral point N2.
- Figures 11 and 12 show the current flow during the second quadrant shown in Figure 8.
- Fig. 1 when upper arm 2 OA of inverter 20 is turned on and lower arm 20 B is turned off, neutral point N 2 from commercial power supply 90, upper arm 3 OA of inverter 30 and power line PL 1.
- Upper arm 2 Current flows through OA and neutral point N1.
- the inverter 30 passes through the upper arm 3 OA of the inverter 30. Current flows to power storage device B.
- the inverter 30 that does not receive the zero-phase voltage command E 0 is always turned off.
- the lower arm 3 0 B may be turned on (upper arm 3 OA is off)
- upper arm 3 OA may be turned on (lower arm 3 OB is off).
- FIGS. 13 and 14 are diagrams showing the flow of current when power is supplied from power storage device B to commercial power supply 90.
- Figure 13 shows the current flow during the first quadrant shown in Figure 8. Referring to FIG. 13, in this first quadrant, upper arm 3 O A of inverter 30 is turned off and lower arm 30 B is turned on. Then, based on the zero-phase voltage command E 0, the inverter 20 performs PWM operation, and a current flows from the power storage device B to the commercial power supply 90 via the upper arm 2 O A of the inverter 20.
- Figure 14 shows the current flow during the third quadrant shown in Figure 8.
- upper arm 3 OA of inverter 30 is turned on and lower arm 3 OB is turned off.
- the inverter 20 Based on the zero-phase voltage command E 0, the inverter 20 performs a PWM operation, and a current flows from the power storage device B to the commercial power supply 90 via the upper arm 3 O A of the inverter 30.
- an inverter that performs PWM operation based on the zero-phase voltage command E 0 may be periodically replaced with the inverters 20 and 30. For example, it can be alternated based on the period of voltage VAC (for example, every few cycles). This prevents the load from concentrating on one inverter.
- the current command generator 6 2 charges the commercial power supply 90 with no harmonic components and fluctuation components, and charges the commercial power supply 90 with a power factor of 1.
- a current command IR that can be supplied is generated. Since the inverter control unit 64 performs current control based on the current command IR, generation of reactive power and harmonic current due to harmonic components and fluctuation components is suppressed.
- the first embodiment it is possible to efficiently charge power storage device B from commercial power supply 90 and supply power from power storage device B to commercial power supply 90. Even if the voltage level of commercial power 90 is switched, it is equivalent to charge / discharge power command value PR. A certain amount of power can be secured. In other words, the voltage level of the commercial power supply 90 differs in each country. According to the first embodiment, it is possible to obtain a constant charging power and feeding power without changing the system setting for each country. it can. In addition, loss and reactive power due to harmonics and fluctuation components are suppressed, so high efficiency and downsizing can be realized.
- inverter control unit 64 controls the zero-phase voltage of inverter 20 based on current command IR, this control does not affect the torque of motor generators MG1, MG2. Therefore, according to the first embodiment, it is possible to perform power control with commercial power source 90 without interference with torque control of motor generators MG 1 and MG 2. In other words, power storage device B can be charged from commercial power supply 90 and power can be supplied from power storage device B to commercial power supply 90 while motor generators MG 1 and MG 2 are driven.
- the inverter control unit 6 4 controls the zero-phase voltage of only the inverter 20 based on the current command IR, the switching loss compared with the case of controlling the zero-phase voltage of both inverters 2.0 and 30. Can be reduced. In addition, the control logic can be simplified.
- the hybrid vehicle 100 can contribute to cost reduction, weight reduction, fuel consumption reduction, and the like.
- both the inverters 20 and 30 are operated in PWM. Make it work.
- the second embodiment is different from the first embodiment in the configuration of the inverter control unit, and the other configurations are the same as those in the first embodiment.
- Figure 15 shows the detailed function block of the inverter control unit in the second embodiment.
- inverter control unit 64A further includes multipliers 1 26, 1 2 8 and subtraction unit 130 in the configuration of inverter control unit 64 in the first embodiment shown in FIG. .
- Multiplication unit 126 multiplies zero-phase voltage command E 0 from current control unit 118 by 1 Z 2 and outputs the calculation result to addition unit 120.
- Adder 120 adds the output from multiplier 126 to each phase voltage command from motor control phase voltage calculator 112 and outputs the calculation result to PWM controller 122.
- Multiplying unit 128 multiplies zero-phase voltage command E 0 from current control unit 118 force by 1/2, and outputs the calculation result to subtracting unit 130.
- Subtraction unit 130 subtracts the output from multiplication unit 128 from each phase voltage command from motor control phase voltage calculation unit 114, and outputs the calculation result to PWM control unit 124.
- the control unit 124 Based on the voltage command from the subtraction unit 130, the control unit 124 generates a signal PWM 2 for actually turning on / off each npn transistor Q21 to Q26 of the inverter 30, The generated signal PWM2 is output to each npn transistor Q21 to Q26 of inverter 30.
- this inverter control unit 64 A a command obtained by multiplying the zero phase voltage command E 0 from the current control unit 118 by 1 Z 2 is given to the P WM conversion unit 122 of the inverter 20, and the inverter 20 A command obtained by inverting the sign of the command given to the PWM control unit 122 is given to the PWM control unit 124 of the inverter 30. That is, the inverter 20 and the inverter 30 share the voltage burden when generating a voltage difference between the neutral points N 1 and N 2 based on the zero-phase voltage command E 0 from the current control unit 118.
- Fig. 16 shows the waveform of the voltage difference generated between neutral points N 1 and N2 according to signals PW Ml, PWM 2 and signals PWM 1 and PWM 2 generated by inverter control unit 64 A shown in Fig. 15.
- FIG. FIG. 16 shows a case where torque control of motor generators MG 1 and MG 2 is not performed.
- triangular wave signal kl is a carrier signal and has a preset carrier frequency.
- the amplitude of the triangular wave signal kl is determined according to the voltage VDC from the voltage sensor 72.
- a curve k 2 is a zero-phase voltage command given to the PWM control unit 122 corresponding to the inverter 20.
- the curve k3 indicated by the dotted line is This is a zero-phase voltage command given to the PWM controller 124 corresponding to the inverter 30.
- the curve k 3 is obtained by inverting the sign of the curve 'k 2 as described above.
- the PWM control unit 122 compares the curve k 2 with the triangular wave signal k 1 and generates a pulsed PWM signal whose voltage value changes according to the magnitude relationship between the curve k 2 and the triangular wave signal k 1. And? ⁇ ; ⁇ ⁇ The control unit 122 outputs the generated PWM signal as the signal PWM1 to the inverter 20, and the phase arms of the inverter 20 perform the switching operation in synchronization with each other according to the signal PW Ml.
- the PWM control unit 124 compares the curve k3 with the triangular wave signal k1, and generates a pulsed PWM signal whose voltage value changes according to the magnitude relationship between the curve k3 and the triangular wave signal k1. Then, ⁇ 1 ⁇ control unit 124 outputs the generated PWM signal to inverter 30 as signal P WM 2, and the phase arms of inverter 30 perform switching operations in synchronization with each other in accordance with signal P WM 2. To do.
- the waveform of the voltage difference between the neutral points Nl and N2 has twice the frequency compared to the case where only one of the inverters 20 and 30 is operated by PWM as in the first embodiment (inverter 20, When only one of 30 is operated by PWM, the voltage waveform between neutral points Nl and N2 is the same as that of signal PWM1 or PWM2.)
- the voltage burden of the inverter 20 and the inverter 30 is equally shared, but there may be a difference in the voltage burden of the inverters 20 and 30.
- the zero phase voltage command E 0 from the current control unit 1 1 8 is multiplied by k (0 ⁇ k ⁇ l) in the multiplication unit 1 26 and is multiplied by (1—k) in the multiplication unit 1 28.
- the value k may be set so as to reduce the share of the inverter corresponding to the motor generator generating the back electromotive voltage.
- the harmonic current component in the current I AC can be reduced.
- reactive power and noise are reduced, and the current input to and output from power storage device B is smoothed.
- the PWM control unit 1 2 2 corresponding to the inverter 2 0 and the PWM control unit 1 2 4 corresponding to the inverter 3 0 are each given a zero-phase voltage command whose sign is inverted.
- a zero-phase voltage command with the same sign is given to the WM control units 1 2 2 and 1 2 4, and a signal obtained by inverting the carrier signal used in the P WM control unit 1 2 2 is transmitted to the carrier in the PWM control unit 1 2 4
- Fig. 17 shows the voltage difference generated between neutral points N 1 and N 2 according to signals P WM 1 and P WM 2 and signals P WM 1 and P WM 2 in Modification 1 of Embodiment 2. It is a waveform diagram. Referring to FIG. 17, the generation of signal P WM 1 is the same as in the second embodiment shown in FIG. '
- the triangular wave signal k 4 is a carrier signal used in the PWM control unit 1 24 corresponding to the inverter 30 and is encoded with the triangular wave signal k 2 used in the PWM control unit 1 2 2 corresponding to the inverter 20. Inverted.
- the P WM control unit 1 2 4 compares the curve k 2 with the triangular wave signal k 4, and the curve k 2
- a pulsed PWM signal whose voltage value changes according to the magnitude relationship between 2 and the triangular wave signal k4 is generated. Then, the P WM control unit 1 2 4 outputs the generated PWM signal as the signal PWM 2 to the inverter 30.
- the waveform of the signal PWM 2 is the same as the waveform of the signal PWM 2 in the second embodiment shown in FIG.
- the waveform of the voltage difference between VN 1 and voltage VN 2 at neutral point N 2 is the same as in the second embodiment.
- one of the inverters 20 and 30 is operated in a complementary manner with respect to the other. More specifically, in Modification 2, the signal P WM 2 is generated by inverting the sign of the signal PWM 1 generated using the zero-phase voltage command and the carrier signal.
- FIG. 18 is generated between the middle “I” raw points N 1 and N 2 according to the signals P WM 1 and P WM 2 and the signals P WM 1 and P WM 2 in the second modification of the second embodiment.
- generation of signal PWM 1 corresponding to inverter 20 is the same as that in the second embodiment shown in FIG.
- the signal P WM 2 corresponding to the inverter 30 is obtained by inverting the sign of the signal P WM 1 corresponding to the inverter 20.
- the signal P WM 2 may be generated using the zero-phase voltage command and the carrier signal
- the signal P WM 1 may be generated by inverting the sign of the generated signal P WM 2.
- the signal P WM 2 is generated based on the signal P WM.1, so that the calculation load can be reduced. Therefore, according to the second modification of the second embodiment, the control is simplified while the voltage burden when generating the voltage difference between the neutral points N 1 and N 2 is shared by the inverters 20 and 30. Can be
- the third embodiment shows a configuration in which a model (internal model) of the current command I R is included in the closed loop of the current control system by utilizing the fact that the current command I R is a sine wave function.
- FIG. 19 is a control block diagram showing the configuration of the current control unit in the third embodiment.
- current control unit 1 1 8 A is composed of PI control unit 2 0 2, internal model compensation unit 2 0 4, and addition unit 2 0 6.
- the PI control unit 20 2 performs a proportional integration calculation using the deviation between the current command IR from the current command generation unit 6 2 and the current IAC from the current sensor 8 6 'as an input signal, and the calculation result is added to the addition unit 2 0 Output to 6.
- the internal model compensator 2 0 4 includes a sine wave model corresponding to the current command IR being a sine wave function. Then, the internal model compensator 20 4 calculates a compensation signal using the sine wave model and outputs the calculated compensation signal to the adder 2 06. Adder 2 06 adds the compensation signal from internal model compensator 2 0 4 to the output signal from PI controller 2 0 2, and outputs the calculation result as zero-phase voltage command E 0.
- this current control unit 1 1 8 since the current command IR is a function of the limit, a sine wave model is included in the closed loop of the current control system, so the gain of the PI control unit 2 0 2 is equivalent. The deviation between the current command IR and the current IAC can be removed without increasing to a certain extent.
- FIG. 20 is a control block diagram showing a configuration example of the internal model compensation unit 20 4 shown in FIG.
- internal model compensation unit 20 4 includes a sine wave transfer function.
- ⁇ is the frequency of the current command IR, specifically, the same as the frequency of the sine wave generated by the sine wave generation unit 10 6 of the current command generation unit 62 shown in FIG. .
- k is a proportionality constant.
- FIG. 21 is a control block diagram showing another configuration example of the internal model compensator 2 0 4 shown in FIG.
- the internal model compensator 2 0 4 includes an average direct arithmetic unit 4 0 2, 4 0 4, a subtraction unit 4 0 6, a PI control unit 4 0 8, and a multiplication unit 4 1 It consists of 0, 4 1 2 forces. .
- the average value calculator 4 0 2 calculates the average value of the magnitude of the current command IR.
- the average direct arithmetic unit 4 0 2 calculates the average value of the half cycle (phase 0 to ⁇ or ⁇ to 2 ⁇ ) of the current command IR.
- the average value calculation unit 4 0 2 integrates the absolute value of the current command IR for one cycle or several cycles, and multiplies that sum by the number of sampling times, and multiplies it by the conversion coefficient to obtain the current command IR. You may obtain
- the average value calculation unit 40 4 calculates the average value of the magnitudes of the currents I AC from the current sensor 86 6 by the same method as the average value calculation unit 4 0 2.
- the subtraction unit 4 06 subtracts the output of the average value calculation unit 4 04 from the output of the average value calculation unit 4 0 2 and outputs the calculation result to the P I control unit 4 0 8.
- the PI control unit 40 8 performs a proportional integration calculation using the deviation between the output from the average value calculation unit 4 0 2 and the output from the average value calculation unit 4 0 4 as an input signal, and multiplies the calculation result. 4 1 Output to 2.
- Multiplier 4 10 multiplies the sine wave function in phase with the voltage of commercial power 90 by 2 and outputs the result to multiplier 4 1 2.
- the sine wave function having the same phase as the voltage of the commercial power supply 90 can be obtained from the sine wave generating unit 106 of the current command generating unit 62 shown in FIG.
- multiplication section 4 1 2 multiplies the output from PI control section 4 0 8 by the output from multiplication section 4 1 0 and outputs the calculation result to addition section 2 0 6.
- the internal model compensator 20 04 since the internal model compensator 20 04 includes the sine wave model in response to the current command IR being composed of a sine wave function, Current control without a steady deviation can be realized. Therefore, the followability to the current command is improved, and the stability, robustness and responsiveness of the control are improved. As a result, reactive power and harmonic current are suppressed, and a highly efficient and compact device can be realized.
- control gain of the PI control unit 202 can be reduced by providing the internal model compensation unit 204, the stability of the current control is also improved in this respect.
- a dead time is generally provided to prevent the upper arm and lower arm from being turned on at the same time. Due to the effect of this dead time, the dead time is periodically near the zero cross point of the current IAC. Waveform distortion occurs. In particular, in a high-power inverter used for an electric vehicle such as a hybrid vehicle, the dead time is often set to be large, and in that case, the distortion becomes more remarkable. Therefore, in the fourth embodiment, waveform distortion that occurs periodically due to the influence of such an inverter dead time is suppressed.
- Figure 22 shows the waveform distortion that occurs periodically due to the dead time of inverters 20 and 30.
- the vertical axis and the horizontal axis represent current and time, respectively, and the current command I R and the actual value of current I A C change over time.
- the waveform of current I AC is periodically distorted near the zero cross point at times t 0, t 3 and t 4, and the distortion decreases as the distance from the zero cross point increases.
- the control gain is increased to suppress distortion near the zero-cross point, overshooting may occur and control may become unstable.
- the control gain is lowered, the distortion near the closing cross point cannot be sufficiently suppressed.
- the compensation amount is calculated based on the deviation ⁇ I ( ⁇ ac 1) between the current command IR and the current IAC at time t 1 corresponding to a certain phase 0 ac 1, and the calculated compensation amount is calculated one cycle later. Output at time t5 corresponding to phase 0 ac1. And some phase 0 ac 2 The amount of compensation is calculated based on the deviation ⁇ I ( ⁇ ac 2) (not shown) between the current command IR and the current IAC at time t 2 corresponding to, and the calculated amount of compensation is the phase ⁇ after one cycle. Output at time t6 corresponding to ac2. Such control is repeatedly executed for each phase.
- the compensation amount is calculated based on the deviation between the current command I R and the current I AC just before one cycle. This calculation is repeatedly executed according to the phase ⁇ ac of the current command IR. In other words, this repetitive control determines the amount of compensation in the same phase of the next cycle based on the deviation of the previous cycle, so it can be controlled by the dead time of the inverter. It is effective.
- FIG. 23 is a control block diagram showing the configuration of the current control unit in the fourth embodiment.
- current control unit 1 1 8 B includes current deviation storage table 2 1 2, gain table 2 1 4 and force.
- the current deviation storage table 2 1 2 receives the deviation between the current command I R and the current I A C from the current sensor 86 from the subtractor 1 1 6 and receives the phase 0 ac of the current command I R.
- the phase detected by the phase detector 10 4 of the current command generator 62 shown in FIG. 3 can be used as the phase 0 ac. '
- the current deviation storage table 2 1 2 stores values ⁇ I (0) to ⁇ ⁇ (3 5 9) for each phase of the deviation ⁇ I (for example, once) between the current command IR and the current IAC. .
- the current deviation storage table 2 1 2 stores each of the deviations ⁇ I (0) to ⁇ I (3 5 9) for one period, and then reads the stored value according to the phase 0 ac to obtain the gain table. 2 1 Output to 4.
- Gain tape knob 2 1 4 stores PI control gain for each phase (for example, once). Then, the gain table 2 1 4 calculates the compensation amount by multiplying the PI control gain corresponding to the output value of the current deviation storage table 2 1 2 according to the phase ⁇ ac, and calculates the calculation result as the zero-phase voltage. Output as command E0.
- the deviation ⁇ I between the current command IR and the current IAC is stored for each phase.
- the current command IR is stored for each phase and read after one cycle.
- the current IAC may be subtracted from the current command and output to the gain table 2 14.
- Embodiments 1 to 4 described above zero-phase voltage command E 0 generated by the current control unit is applied to each phase of inverter 20 or / and 30.
- the inverter 20 or / and 30 is controlled by the inverter control unit in a three-phase manner (synchronously) for the control of the current I AC.
- a current control unit is provided for each phase for inverters 20 and 30, and current control is performed independently for each phase so that the currents flowing in the respective phase coils are equal to each other. It is. 'Embodiment 5 is different from Embodiments 1 to 4 in the configuration of the inverter control unit, and the other configurations are the same as those in Embodiments 1 to 4.
- FIG. 24 is a detailed functional block diagram of the inverter control unit according to the fifth embodiment.
- this inverter control unit 6 4 B is connected to subtraction unit 1 1 6 and current control unit 1 1 8 in the configuration of the inverter control unit 6 4 in the embodiment 1 shown in FIG. Instead, a multiplication unit 2 2 2, a subtraction unit 2 2 4, 2 2 8, 2 3 2, and a current control unit 2 2 6, 2 3 0, 2 3 4 are included.
- Multiplier 2 2 2 outputs current command IR multiplied by 1 Z 3 times.
- Subtraction unit 2 2 4 subtracts U-phase current I u 1 from current sensor 8 2 from the output of multiplication unit 2 2 2, and outputs the calculation result to current control unit 2 2 6.
- the current control unit 2 2 6 is a U-phase zero-phase voltage command to make the U-phase current I u 1 follow a command that is 1/3 times the current command IR; E 0 u is generated, and the generated U-phase zero-phase voltage command E 0 u is output to the adding unit 1 2 0.
- Subtraction unit 228 subtracts V-phase current IV 1 from current sensor 82 2 from the output of multiplication unit 222 and outputs the calculation result to current control unit 230. Based on the output from the subtractor 228, the current control unit 230 generates a V-phase zero-phase voltage command E 0 V for causing the V-phase current IV 1 to follow a command that is 1 to 3 times the current command IR. The generated V-phase zero-phase voltage command E 0 V is output to the adding unit 120.
- the subtractor 232 subtracts the W-phase current I w 1 from the current sensor 82 from the output of the multiplier 222 and outputs the calculation result to the current controller 234. Based on the output from the subtracting unit 232, the current control unit 234 generates a W-phase zero-phase voltage command E Ow for causing the W-phase current I w 1 to follow a command that is 1/3 times the current command IR. The generated W phase zero phase voltage command E 0 w is output to the adding unit 120.
- the current control units 226, 230, and 234 are activated when the signal AC is activated, and when the signal AC is deactivated, the zero-phase voltage commands E 0 u and E 0 respectively. Output V and EOw as 0.
- the adder 120 receives the U, V, W phase voltage commands from the motor control phase voltage calculation unit 112 and the zero phase voltage commands E 0 u, EO V, EOw from the current control units 226, 230, 234. Are added to each other, and the calculation result is output to the PWM controller 122.
- this inverter control unit 64 B when controlling the current I AC, current control units 226, 230, and 234 are provided for the U, V, and W phases, respectively.
- Current control Current control is performed so as to follow a command that is 1 Z 3 times the IR. 'As a result, in the generation of the current I AC, the same amount and the same phase current flows in each phase coil, and no torque is generated in the motor generator MG 1.
- the current control units 226, 230, and 234 of each phase may be configured by general PI control, or the same as the current control units 1 18 A and 1 18 B in the third and fourth embodiments. You may comprise.
- the zero-phase voltage commands E 0 u, EO v, and EOw may be added to each phase voltage command from the motor control phase voltage calculation unit 114.
- current control is performed independently for each phase when generating current I AC, even if there is an imbalance in each phase impedance of motor generator MG 1, The same amount and current of the same phase flows through each phase coil. It is. Therefore, according to the fifth embodiment, it is possible to reliably prevent torque from being generated in motor generator MG 1 when generating current I AC.
- the voltage VDC is not controlled.
- power storage device B can be charged at a constant voltage by controlling voltage VDC to be constant, and rapid charging allows a current pattern to be set according to the state of power storage device B. Therefore, in this sixth embodiment, a voltage control system for controlling the voltage VDC to the target value is added.
- the sixth embodiment is different from the first to fifth embodiments in the configuration of the current command generation unit, and the other configurations are the same as those in the first to fifth embodiments.
- FIG. 25 is a detailed functional block diagram of the current command generator in the sixth embodiment.
- this current command generation unit 62 A includes an inverter input voltage command setting unit 252, a subtraction unit 254, in the configuration of current command generation unit 62 in Embodiment 1 shown in FIG. And PI controller 256 and adder 258.
- Inverter input voltage command setting unit 252 sets target voltage VDCR of voltage VDC based on voltage VB of power storage device B and voltage VAC of commercial power supply 90. For example, the inverter input voltage command setting unit 252 sets the target voltage VDCR to a value higher than the peak voltage of the voltage VAC and higher than the voltage VB. Therefore, if the target voltage VDCR is too high, the loss in the inverters 20 and 30 increases. Therefore, the target voltage VDCR is set to an appropriate value in consideration of the loss of the inverters 20 and 30.
- the voltage VB of power storage device B is detected by a voltage sensor (not shown).
- the subtraction unit 254 subtracts the voltage VDC from the target voltage VDCR set by the inverter input voltage command setting unit 252 and outputs the calculation result to the PI control unit 256.
- PI control unit 256 performs a proportional integration operation using the output from subtraction unit 254 as an input signal, and outputs the calculation result to addition unit 258.
- Adder 258 then adds the calculation result of PI control unit 256 to charge / discharge power command value PR, and outputs the calculation result to division unit 108.
- the charge / discharge power command is corrected so that the voltage VDC follows the target voltage VDCR, and the current command IR is calculated based on the corrected charge / discharge power command.
- the sixth embodiment since a voltage control system for controlling voltage VDC is added, power storage device B can be charged with a constant voltage. Therefore, according to the sixth embodiment, control suitable for rapid charging can be realized. Further, the pattern of current I AC can be set according to the state of power storage device B and the voltage level of commercial power supply 90, and the charging efficiency of power storage device B can be improved. Furthermore, the controllability of inverters 20 and 30 is improved by controlling voltage VDC. As a result, loss, harmonics and reactive power can be reduced, and deterioration of power storage device B can be suppressed.
- FIG. 26 is an overall block diagram of a hybrid vehicle shown as an example of a vehicle according to Embodiment 7 of the present invention.
- this hybrid vehicle 10 OA includes boost converter 10, power supply line PL 2, capacitor C 3 in the configuration of hybrid vehicle 100 according to the first embodiment shown in FIG.
- a voltage sensor 76 and a current sensor 88 are further provided, and an ECU 60 A is provided instead of the ECU 60.
- Boost converter 10 includes a rear tower L, npn transistors Ql and Q2, and diodes Dl and D2.
- the npn transistors Q 1 and Q 2 are connected in series between the power supply line PL 1 and the ground line SL.
- Each np Diodes D 1 and D 2 are connected between the collector emitters of n- type transistors Q l and Q 2 so that current flows from the emitter side to the collector side.
- the one end of the rear tuttle L is connected to the connection point of the n J) n-type transistors Q 1 and Q 2, and the other end is connected to the power supply line PL 2.
- Boost converter 10 is based on signal PWC from ECU6 OA.
- the DC voltage received from B is boosted using reactor L, and the boosted voltage is output to capacitor C1.
- boost converter 10 accumulates the current flowing according to the switching operation of nn-type transistor Q2 as magnetic field energy in reactor L, based on signal PWC from ECU 60A, thereby causing DC voltage from power storage device B to accumulate.
- Boost the boosting comparator 10 outputs the boosted boosted voltage to the power supply line P L 1 through the diode D 1 in synchronization with the timing when the rvpn transistor Q 2 is turned off.
- Boost converter 10 steps down DC voltage supplied from power supply line P L 1 based on signal PWC from ECU 6 OA and outputs it to power supply line PL 2 to charge power storage device B.
- Capacitor C 3 smoothes the voltage fluctuation between power line P L 2 and ground line S L.
- Voltage sensor 76 detects voltage VB of power storage device B, and outputs the detected voltage VB to ECU 60A.
- Current sensor 88 detects current IB input / output to power storage device B and outputs the detected current IB to ECU 6 OA.
- FIG. 27 is a functional block diagram of ECU6OA shown in FIG. Referring to FIG. 27, ECU 6 OA further includes a converter control unit 66 in the configuration of ECU 60 shown in FIG.
- Converter control unit 66 receives torque command values TR 1 and TR 2 for motor generators MG 1 and MG 2 received from the vehicle ECU, motor rotation speed MRNl and MRN2, voltage VB from voltage sensor 76, and voltage VDC from voltage sensor 72. Based on the voltage VAC from the voltage sensor 74 and the signal AC, a signal PWC for turning on / off the npn transistors Q 1 and Q 2 of the boost converter 10 is generated, and the generated signal PWC is boosted. Output to converter 10.
- FIG. 28 is a detailed functional block diagram of converter control unit 66 shown in FIG. Referring to FIG. 28, converter control unit 66 includes inverter input voltage command calculation unit 302, subtraction unit 304, FB control unit 306, and gate control unit 308. Become.
- the inverter input voltage command calculation unit 302 determines the optimum value (target value) of the inverter input voltage based on the torque command values TR 1 and TR 2 and the motor speeds MRN 1 and MRN2. VDCR is calculated and the calculated voltage command VDCR is output to the subtractor 304.
- Inverter input voltage command calculation unit 302 sets voltage command VDCR based on voltage VB of power storage device B and voltage VAC of commercial power supply 90 when signal AC is activated. For example, similarly to the inverter input voltage command setting unit 252 in the sixth embodiment, the inverter input voltage command calculation unit 302 sets the target voltage VDCR to a value higher than the peak voltage of the voltage V AC and higher than the voltage VB.
- Subtraction unit 304 subtracts voltage VDC from voltage command VDCR output from inverter input voltage command calculation unit 302 and outputs the calculation result to FB control unit 306.
- the FB control unit 306 performs feedback calculation (for example, proportional integration calculation) for controlling the voltage VDC to the voltage command VDCR, and outputs the calculation result to the gate control unit 308.
- the gate control unit 308 based on voltage VB, the VDC, E and calculates the duty ratio for controlling the voltage VDC to the voltage command 'VDCR, the gate control unit 3 08, based on the calculated duty ratio, A PWM signal for turning on and off ⁇ ⁇ ⁇ transistors Q 1 and Q 2 of boost converter 10 is generated, and the generated PWM signal is output to npn transistors Ql and Q2 of boost converter 10 as signal PWC.
- boost converter 10 is provided, W 200
- the control performance and conversion efficiency of the inverters 20 and 30 can be optimized. As a result, charging of power storage device B from commercial power source 90 and power feeding from power storage device B to commercial power source 90 can be performed more efficiently.
- the current control system for controlling the current IAC and the voltage control system for controlling the voltage VDC are separated from each other to obtain the same effect as in the sixth embodiment. Since it is configured, the degree of freedom of control is higher than in the sixth embodiment.
- the eighth embodiment is different from the seventh embodiment in the configuration of the converter control unit, and the other configurations are the same as those in the seventh embodiment.
- FIG. 29 is a detailed functional block diagram of the converter control unit according to the eighth embodiment.
- converter control unit 6 6 A includes a division unit 3 1 0 and an addition unit 3 1 2 in the configuration of converter control unit 6 6 in the seventh embodiment shown in FIG. Further, a subtraction unit 3 1 4 and a PI control unit 3 1 6 are included.
- the division unit 3 1 0 converts the output from the F B control unit 3 0 6 to the voltage V from the voltage sensor 7 6.
- Adder 3 1 2 adds current command I B R input / output to / from power storage device B to the output from divider 3 1 0.
- the current command I BR can be obtained by dividing the charge / discharge power command value PR by the voltage V B.
- the subtractor 3 1 4 subtracts the current IB from the current sensor 88 from the output of the adder 3 1 2 and outputs the calculation result to the PI controller 3 1 6.
- the PI control unit 3 1 6 performs a proportional integration operation using the output from the subtraction unit 3 1 4 as an input signal, and outputs the calculation result to the gate control unit 3 8.
- the PI control unit 3 16 controls the current IB so as to approach the current command IBR.
- the controllability of current IB is increased. If it is too high (if the control gain of PI control unit 3 1 6 is set too high), the controllability of voltage VDC will decrease. However, if the capacity of capacitor C1 is sufficient and voltage fluctuation of voltage VDC can be suppressed to some extent by capacitor C1, improving the controllability of current IB contributes to improving the charge / discharge efficiency of power storage device B. .
- the current control system for controlling the current IB to the target current is added to the converter control unit, the controllability of the voltage VDC and the controllability of the current IB
- the controllability of the voltage VDC and the controllability of the current IB By appropriately adjusting the charging / discharging efficiency of power storage device B, it is possible to further improve the charging / discharging efficiency. Further, by suppressing the pulsation of current IB, it is possible to contribute to the suppression of deterioration of power storage device B. Further, loss and deterioration of the capacitor C 1 can be suppressed.
- boost converter 10 When an abnormality occurs during operation of boost converter 10 and a system main relay (not shown) provided between power storage device B and boost converter 10 is turned off, the reactor L of boost converter 10 is turned off. When the stored energy is released, an overcurrent may flow through the system main relay and the system main relay may be welded. In addition, an overvoltage may be applied to boost converter 10 and npn transistors Ql and Q2 may be destroyed by overvoltage. Therefore, in this Embodiment 9, an abnormality is detected based on the deviation between the current IB and the current command IBR, and when the abnormality is detected, the boost converter 10 is stopped before turning off the system main relay. .
- the ninth embodiment is different from the eighth embodiment in the configuration of the converter control unit, and the other configurations are the same as those in the eighth embodiment.
- FIG. 30 is a detailed functional block diagram of the converter control unit according to the ninth embodiment.
- converter control unit 6 6 B further includes an anomaly detection unit 3 18 in the configuration of converter control unit 6 6 A in the eighth embodiment shown in FIG.
- the abnormality detection unit 3 1 8 determines whether or not the output from the subtraction unit 3 1 4, that is, the deviation between the current command and the current sensor 8 8 power IB exceeds a specified value set in advance. The When the abnormality detection unit 3 1 8 determines that the deviation exceeds the specified value, the error detection unit 3 1 8 The shutdown signal SD OWN is activated and output to the gate controller 3 0 8.
- the gate control unit 30 8 is a signal for turning off both the npn transistors Q 1 and Q 2 of the boost converter 10 when the shutdown signal SD OW N from the abnormality detection unit 30 8 is activated. PWC is generated and output to the boost converter 10.
- boost converter 10 is immediately stopped. Therefore, it is possible to prevent the system main relay from being welded and the overvoltage breakdown of the booster comparator 10 '.
- motor generators MG 1 and MG 2 are
- the present invention can be easily extended and applied to multi-phase AC rotating electric machines other than the three-phase.
- the hybrid vehicle has been and by dividing the power of the engine 4 to the axle and the motor-generator MG 1 transmits available-series / / parallel type by power split mechanism 3, the The present invention is a series-type hybrid vehicle that uses the engine 4 only to drive the motor generator MG 1 and generates the driving force of the vehicle only by the motor generator MG 2 that uses the electric power generated by the motor generator MG 1. Can also be applied.
- the hybrid army was described as an example of a vehicle according to the present invention.
- the present invention can be applied to an electric vehicle and a fuel cell vehicle not equipped with the engine 4. Can do.
- motor generators MG 1 and MG 2 correspond to the “first AC rotating electric machine” and the “second AC rotating electric machine” in this invention, respectively, and the three-phase coils 1 2 and 1 4 are These correspond to the “first multiphase winding” and the “second multiphase winding” in the present invention, respectively.
- the inverters 20 and 30 correspond to the “first inverter” and “second inverter” in the present invention, respectively, and the neutral points N 1 and N 2 respectively correspond to the “first center” in the present invention.
- the power lines NL 1 and NL 2 correspond to the “power line pair” in the present invention
- the voltage sensor 74 is the “first voltage detection in the present invention”. Corresponds to "device”.
- the current sensor 8 6 corresponds to the “first current detection device” in the present invention
- the current sensors 8 2 and 8 4 correspond to the “plurality of second current detection devices” in the present invention.
- each of the current control units 1 1 8, 1 1 8 A, 1 1 8 B corresponds to the “current control unit” in the present invention
- the current control units 2 2 6, 2 3 0, 2 3 4 Corresponds to “a plurality of current control units” in the present invention.
- the PM controller 1 2 2, 1 2 4 corresponds to the “drive signal generator” in the present invention
- the current controller 1 1 8 B corresponds to the “repetitive controller” in the present invention. .
- the voltage sensor 7 2 corresponds to the “second voltage detection device” in the present invention, and the inverter input voltage command setting unit 2 5 2, the subtraction unit 2 5 4 and the PI control unit 2 5 6
- the “voltage control unit of the current command generation unit” in the invention is formed.
- the current sensor 8 8 corresponds to the “third current detection device” in the present invention, and the inverter input voltage command calculation unit 3 0 2, the subtraction unit 3 0 4 and the FB control unit 3 0 6
- the “voltage control unit of the converter control unit” in the present invention is formed.
- the adding unit 3 12, the subtracting unit 3 14, and the PI control unit 3 16 form a “current control unit of the converter control unit” in the present invention.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Inverter Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07744529.4A EP2023459A4 (en) | 2006-05-29 | 2007-05-24 | Power controller and vehicle equipped with power controller |
| US12/226,916 US7891451B2 (en) | 2006-05-29 | 2007-05-24 | Power controller and vehicle equipped with power controller |
| AU2007268546A AU2007268546B2 (en) | 2006-05-29 | 2007-05-24 | Power controller and vehicle equipped with power controller |
| CA2653938A CA2653938C (en) | 2006-05-29 | 2007-05-24 | Power controller and vehicle equipped with power controller |
| BRPI0712699A BRPI0712699B1 (pt) | 2006-05-29 | 2007-05-24 | controlador de energia eletrica e veículo que compreende um dispositivo de armazenamento de energia e um controlador de energia elétrica |
| CN2007800199564A CN101454958B (zh) | 2006-05-29 | 2007-05-24 | 电力控制装置和具有该电力控制装置的车辆 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006148791A JP4491434B2 (ja) | 2006-05-29 | 2006-05-29 | 電力制御装置およびそれを備えた車両 |
| JP2006-148791 | 2006-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007139202A1 true WO2007139202A1 (ja) | 2007-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/061141 Ceased WO2007139202A1 (ja) | 2006-05-29 | 2007-05-24 | 電力制御装置およびそれを備えた車両 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US7891451B2 (ja) |
| EP (1) | EP2023459A4 (ja) |
| JP (1) | JP4491434B2 (ja) |
| KR (1) | KR101012430B1 (ja) |
| CN (1) | CN101454958B (ja) |
| AU (1) | AU2007268546B2 (ja) |
| BR (1) | BRPI0712699B1 (ja) |
| CA (1) | CA2653938C (ja) |
| RU (1) | RU2381610C1 (ja) |
| WO (1) | WO2007139202A1 (ja) |
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| JP3587254B2 (ja) * | 2002-07-08 | 2004-11-10 | トヨタ自動車株式会社 | 車両制御装置 |
| JP4438417B2 (ja) | 2004-01-13 | 2010-03-24 | トヨタ自動車株式会社 | 交流電圧発生装置および動力出力装置 |
| JP4490221B2 (ja) * | 2004-09-28 | 2010-06-23 | トヨタ自動車株式会社 | 動力出力装置およびそれを備えた車両 |
| JP4430501B2 (ja) * | 2004-09-29 | 2010-03-10 | トヨタ自動車株式会社 | 動力出力装置およびそれを備えた車両 |
| JP4113525B2 (ja) * | 2004-10-22 | 2008-07-09 | トヨタ自動車株式会社 | 交流電源装置 |
| JP4245546B2 (ja) | 2004-11-04 | 2009-03-25 | トヨタ自動車株式会社 | 動力出力装置およびそれを備えた車両 |
| JP2006158123A (ja) * | 2004-11-30 | 2006-06-15 | Toyota Motor Corp | 交流電圧出力装置およびそれを備えた車両 |
| JP2007099223A (ja) * | 2005-10-07 | 2007-04-19 | Toyota Motor Corp | ハイブリッド自動車 |
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2006
- 2006-05-29 JP JP2006148791A patent/JP4491434B2/ja not_active Expired - Fee Related
-
2007
- 2007-05-24 US US12/226,916 patent/US7891451B2/en not_active Expired - Fee Related
- 2007-05-24 BR BRPI0712699A patent/BRPI0712699B1/pt active IP Right Grant
- 2007-05-24 CN CN2007800199564A patent/CN101454958B/zh active Active
- 2007-05-24 AU AU2007268546A patent/AU2007268546B2/en not_active Ceased
- 2007-05-24 RU RU2008152081/09A patent/RU2381610C1/ru not_active IP Right Cessation
- 2007-05-24 CA CA2653938A patent/CA2653938C/en not_active Expired - Fee Related
- 2007-05-24 WO PCT/JP2007/061141 patent/WO2007139202A1/ja not_active Ceased
- 2007-05-24 KR KR1020087031214A patent/KR101012430B1/ko not_active Expired - Fee Related
- 2007-05-24 EP EP07744529.4A patent/EP2023459A4/en not_active Withdrawn
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| JPH04295202A (ja) | 1990-12-31 | 1992-10-20 | General Motors Corp <Gm> | 電動機駆動及び動力処理装置 |
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| NL2001347C2 (nl) * | 2008-03-04 | 2009-09-07 | Teamwork Engineering B V | Inrichting en werkwijze voor het met directe koppeling met een laagspanningsdistributienet tijdelijk opslaan van elektrische energie. |
| JP2011066972A (ja) * | 2009-09-15 | 2011-03-31 | Fuji Electric Systems Co Ltd | モータ駆動システム |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4491434B2 (ja) | 2010-06-30 |
| AU2007268546B2 (en) | 2012-05-17 |
| BRPI0712699B1 (pt) | 2017-06-06 |
| EP2023459A1 (en) | 2009-02-11 |
| BRPI0712699A2 (pt) | 2012-07-10 |
| AU2007268546A1 (en) | 2007-12-06 |
| US7891451B2 (en) | 2011-02-22 |
| KR101012430B1 (ko) | 2011-02-08 |
| CN101454958A (zh) | 2009-06-10 |
| CA2653938C (en) | 2012-02-07 |
| US20090067205A1 (en) | 2009-03-12 |
| RU2381610C1 (ru) | 2010-02-10 |
| CA2653938A1 (en) | 2007-12-06 |
| KR20090018974A (ko) | 2009-02-24 |
| JP2007318970A (ja) | 2007-12-06 |
| CN101454958B (zh) | 2011-08-03 |
| EP2023459A4 (en) | 2017-02-01 |
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