WO2007074268A2 - Machine electrique tournante a phases decouplees - Google Patents
Machine electrique tournante a phases decouplees Download PDFInfo
- Publication number
- WO2007074268A2 WO2007074268A2 PCT/FR2006/051347 FR2006051347W WO2007074268A2 WO 2007074268 A2 WO2007074268 A2 WO 2007074268A2 FR 2006051347 W FR2006051347 W FR 2006051347W WO 2007074268 A2 WO2007074268 A2 WO 2007074268A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit
- capacitive
- capacitive element
- capacitance
- machine according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/02—Details of the control
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- 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
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
Definitions
- the present invention relates to rotating electrical machines, including alternator-starters used for example in motor vehicles. More particularly, the invention relates to a rotating electrical machine comprising an electromechanical assembly adapted to convert an electric power in the form of an alternating current into a mechanical power.
- This set comprises a number n of phases, where n is at least 2, an inverter circuit adapted to deliver said alternating current and comprising n pairs of switching circuits connected in series with each other, each pair being coupled. at a respective phase of the electromechanical assembly. It is known to use such rotating machines, especially in the context of reversible type machines alternator starters.
- the electromechanical assembly comprises for example an n-phase synchronous motor, a switching circuit forming an inverter circuit, and a control circuit for controlling the switching circuit.
- the synchronous motor comprises a stator with a plurality of phases formed by windings, and a rotor mounted to move relative to the stator and comprising for example a permanent magnet.
- the switching circuit When using a machine of this type in starter mode, the switching circuit converts a continuous electric power, delivered by a battery of a vehicle, into an alternative electrical power. From this alternative electrical power, the stator generates a rotating magnetic field, to generate a mechanical torque supplied to the engine during startup. It is desirable to produce a large torque in this mode of operation.
- the control of the switching circuits can be disturbed by electromagnetic signals, may cause malfunction of the motor control. These electromagnetic disturbances can be generated by other devices operating in the vicinity of the rotating electrical machine.
- the rotating electrical machine can also produce electromagnetic disturbances, which can be troublesome for other devices in the environment.
- the present invention is intended to overcome the aforementioned drawbacks by providing a rotating electrical machine less sensitive to electromagnetic disturbances.
- a rotating electrical machine of the type in question comprises a first capacitive element which is connected in parallel with each respective pair of switching circuits and a damping circuit, comprising an element resistive and a second capacitive element, which is connected in parallel with the first capacitive element of each respective pair of switching circuits. Thanks to these arrangements, it ensures a decoupling of the switching circuits of each phase.
- the rotating electrical machine is thus better protected from electromagnetic attack and can therefore be used in a more demanding environment.
- the high frequency components of the current are smoothed through these capacitors, thus resulting in a decrease in the amplitude of the harmonics that can disturb nearby devices (EMC conducted and radiated).
- the capacitance of this first capacitive element forms an oscillating circuit tuned with the inductance of the elements conductors, in particular the inductance of the cables connecting the battery to the inverter circuit.
- the damping circuit is coupled in parallel with each first capacitive element.
- the resistance of the resistive element of the damping circuit is chosen to optimally dampen these oscillations.
- a first function of the second capacitive element is to prevent a supply current which is continuous is permanently dissipated by the resistance of the damping circuit. Indeed, the capacitor plays an open switch role for a direct current, preventing conduction through the resistive element. According to one embodiment of the invention, the capacitance of the second capacitive element is substantially greater than the capacitance of the first capacitive element.
- the second capacitive element since the capacity of the second capacitive element is greater than the capacitance of the first capacitive element, the latter conducts the current for frequencies lower than the resonant frequency of the parasitic oscillating circuit. As a result, the first capacitive element is shunted to damp the oscillations by means of the resistance of the resistive element.
- the value of the capacitance of the second capacitive element is for example substantially equal to or greater than three times the capacitance of the first capacitive decoupling element. It has been established that this constitutes a good compromise between the size of the components and the high frequency shunt efficiency of the first capacitive element.
- the inverter circuit is coupled to a direct current source via conductive elements, said conductive elements having a parasitic internal inductance.
- the damping circuit and the first capacitive element form with the conductors an oscillating circuit.
- the resistive element of the damping circuit is adapted to attenuate the oscillations within said oscillating circuit
- the resistance of the resistive element is thus chosen as a function of the values of parasitic inductances and capacitors, so that the oscillating circuit is optimally damped.
- L is the sum of the parasitic inductances of the electrical conductors, where C1 is the capacitance of the first capacitive element, where C2 is the capacitance of the second capacitive element.
- the rotating electrical machine may further comprise a control circuit with n pairs of outputs for controlling the n pairs of respective switching circuits, and the control circuit may comprise at least one resistive output element connected to said outputs.
- each output resistive element forms, with parasitic capacitances of the corresponding switching circuit, an RC circuit having a given time constant. The value of the resistive element is then such that said time constant is substantially 5% of a minimum period of the alternating current.
- each output resistive element forms, with parasitic capacitances of the corresponding switching circuit, an RC circuit having a given time constant.
- the value of the resistive element is then such that a maximum voltage variation across the first capacitive element is substantially less than 5V / ⁇ s. This allows in particular the use of ceramic capacitors, the size of which is small, and sufficient to ensure electromagnetic decoupling in an efficient manner.
- Figure 1 is a simplified diagram of a rotating electrical machine according to the invention
- Figure 2 is an electrical diagram of a phase of the rotating electrical machine of Figure 1;
- FIG. 3 is a chronogram representing the evolution of signals during a switching in the phase of FIG.
- a rotating electrical machine 1 is powered by a DC voltage source, for example a battery 2.
- this engine can be used alternator, especially if the rotating electrical machine 1 is an alternator-starter.
- the rotary electrical machine 1 comprises a three-phase inverter circuit 4, coupled on the one hand to the battery 2 via the terminals B + and B-, and on the other hand to the three-phase motor 3 via the phases U, V, W.
- stator windings are mounted in a star, that is to say they have a common terminal, the neutral N.
- the triangle structure can also be used.
- the number of phases can be different. However, an odd number of phases is preferred.
- the inverter 4 has six switching circuits
- Each pair of switching circuits is coupled to a respective phase at a common terminal.
- the pair 4a-4d has a common terminal U connected to the winding U of the stator.
- the pair 4b-4e has a common terminal V connected to the stator winding V
- the pair 4c-4f has a common terminal W connected to the winding W of the stator.
- FIG. 2 is a simplified representation of the pair of switching circuits 4a-4d with part of the control circuit 5 of the switching circuit 4d.
- Each switching circuit includes a similar control circuit that has not been shown for clarity.
- the switching circuits 4a and 4d are MOSFET transistors (for Metal Oxide Semiconductor Field Effect Transistors).
- the control circuit is adapted for controlling the electromechanical set in alternator mode with the alternator control block 6 (ALTERN.CONT.) And a motor mode control with the control block in the motor mode 8 (MOT. CONTROL.).
- the control signal is for example multiplexed by a multiplexer 7 with two inputs.
- a resistive output element R out can be connected between the motor control block 8 and the multiplexer 7.
- the control circuit 5 is coupled with the gate of the transistor 4d via a resistor R1. According to other embodiments of the invention, parallel to the pair of MOSFETs 4a and 4d is connected a first capacitive element Ci.
- This capacitive element makes it possible to decouple the phases and the supply branches connected to the terminals B + and B-.
- the rotating electrical machine 1 is less sensitive to electromagnetic disturbances that could cause a malfunction of MOSFETs 4a and 4d. Indeed, without this decoupling capacitance which "absorbs" the high frequencies, an electromagnetic disturbance can modify a reference potential, for example the potential at point B +, thus causing the switching of 4a.
- the capacity Ci substantially equal to 22OnF was chosen.
- the first capacitive element Ci forms with the total parasitic inductance L of the elements conductors, modeled by the coils shown in Figure 2, an oscillating circuit, with a resonant frequency of about.
- a resistive element R 2 is placed in parallel with this capacitance.
- a capacitive element C 2 is placed in series with this resistor. Indeed, while a direct current causes the charge of this capacitive element, blocking this branch of the circuit, an alternating current can pass through this capacitive element C 2 and be dissipated or damped in the resistance of the resistive element R 2 .
- the capacitance C 2 is chosen substantially equal to the triple of the capacity Ci, in our example 680 nF.
- the second capacitive element C 2 behaves substantially as a closed switch for an alternating current close to the resonance frequency of the oscillating circuit LCi.
- the resistive element R2 damps the oscillations produced in this oscillating circuit.
- the resistance R 2 is chosen substantially equal to ⁇ I V-. So, when
- the overshoots caused by the oscillations are of an amplitude which becomes so small that these oscillations can not cause a parasitic switching of one of the MOSFETs 4a and 4d.
- the steady state is reached quickly.
- Figure 3 is a timing chart showing the evolution of different voltages and currents of the circuit of FIG. 2 during the transition from the on state to the off state of the MOSFET 4d.
- the transistor 4a In the initial state t 0 , the transistor 4a is in the off state and the transistor 4d is in the on state.
- the control circuit imposes a low signal at the output connected to the gate of the MOSFET 4d.
- the voltage of the gate V G then begins to decrease with a time constant which is a function of the parasitic capacitances of the MOSFET 4d and the resistors Ri and R or t- When this voltage V G reaches a first threshold, at time t 2 this voltage decreases more slowly.
- This phenomenon is called the "Miller Plateau” whose duration Ti depends on the resistances R 1 and R or t and the parasitic capacitances of the MOSFET.
- the internal resistance of the MOSFET 4d begins to increase, and the MOSFET 4d operates in linear conduction mode. Since the current I coming from the stator winding of the phase U can not vary rapidly, because of the inductance of this winding, the drain voltage V D of the MOSFET 4d increases with the increase of the internal resistance of the transistor .
- the overvoltages are established, and the MOSFET 4d is in breakdown mode and remains in this conduction mode the time that the energy stored in the parasitic inductances of the circuit between the inverter 4 and the battery 2 ( Figure 1) is dissipated in the transistors.
- the voltage across capacitive elements Ci and C 2 varies rapidly. This has the direct consequence of the formation of a large current in these components.
- the resistive element R or t is placed, so that this additional resistance causes the increase in the time constant of the discharge of the parasitic capacitances of the MOSFET 4d. This notably results in the extension of the duration Ti of the Miller plateau.
- the maximum value of () where V is the voltage dt across the capacitive element can be limited.
- this maximum value is about 5V / ⁇ s. This value makes it possible to use ceramic capacitors, the size of which is smaller, which allows a better integration of the entire control circuit.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Inverter Devices (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Multiple Motors (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006800487641A CN101346874B (zh) | 2005-12-23 | 2006-12-13 | 具有去耦相的旋转电机 |
| DE602006012369T DE602006012369D1 (de) | 2005-12-23 | 2006-12-13 | Rotierende elektrische maschine mit entkoppelten phasen |
| AT06842157T ATE458297T1 (de) | 2005-12-23 | 2006-12-13 | Rotierende elektrische maschine mit entkoppelten phasen |
| JP2008546545A JP2009521201A (ja) | 2005-12-23 | 2006-12-13 | 反結合位相を有する回転電気機器 |
| US12/158,095 US20090224711A1 (en) | 2005-12-23 | 2006-12-13 | Rotating electrical machine with decoupled phases |
| EP06842157A EP1964252B1 (fr) | 2005-12-23 | 2006-12-13 | Machine electrique tournante a phases decouplees |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0513296A FR2895593B1 (fr) | 2005-12-23 | 2005-12-23 | Machine electrique tournante a phases decouplees |
| FR05/13296 | 2005-12-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007074268A2 true WO2007074268A2 (fr) | 2007-07-05 |
| WO2007074268A3 WO2007074268A3 (fr) | 2007-09-07 |
Family
ID=36763994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2006/051347 Ceased WO2007074268A2 (fr) | 2005-12-23 | 2006-12-13 | Machine electrique tournante a phases decouplees |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20090224711A1 (fr) |
| EP (1) | EP1964252B1 (fr) |
| JP (1) | JP2009521201A (fr) |
| CN (1) | CN101346874B (fr) |
| AT (1) | ATE458297T1 (fr) |
| DE (1) | DE602006012369D1 (fr) |
| FR (1) | FR2895593B1 (fr) |
| WO (1) | WO2007074268A2 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103054207A (zh) * | 2012-12-25 | 2013-04-24 | 吴江杰盛纺织品整理厂 | 新型节能充电服装 |
| EP3029697B1 (fr) * | 2014-12-05 | 2018-10-24 | ABB Schweiz AG | Dispositif de commutation de tension moyenne de type électromagnétique présentant un circuit d'entraînement de puissance améliorée |
| CN114701377B (zh) * | 2021-11-12 | 2023-08-15 | 上海汽车集团股份有限公司 | 一种电动汽车充电系统及电动汽车 |
| US20250150016A1 (en) * | 2022-02-07 | 2025-05-08 | University Of Kentucky Research Foundation | Smart Coils for an Electric Motor |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL296553A (fr) * | 1962-08-13 | 1900-01-01 | ||
| US3691439A (en) * | 1971-01-28 | 1972-09-12 | Danfoss As | Control arrangement for a three phase motor with intermediate d.c. regulation |
| US4199807A (en) * | 1978-04-24 | 1980-04-22 | Gould Advance Limited | Regulated power supply apparatus |
| US4602200A (en) * | 1985-02-26 | 1986-07-22 | General Electric Company | Alternating current motor drive having current filter |
| US4901216A (en) * | 1987-12-10 | 1990-02-13 | Boschert Incorporated | Power supply regulated by modulating the inductance in a resonant LC circuit |
| US4904918A (en) * | 1989-03-13 | 1990-02-27 | General Electric Company | Power conversion system including an improved filter for attenuating harmonics |
| GB2242580B (en) * | 1990-03-30 | 1994-06-15 | Mitsubishi Electric Corp | Inverter unit with improved bus-plate configuration |
| US5127085A (en) * | 1991-04-01 | 1992-06-30 | General Motors Corporation | Ride-through protection circuit for a voltage source inverter traction motor drive |
| US5552976A (en) * | 1994-06-10 | 1996-09-03 | Northrop Grumman Corporation | EMI filter topology for power inverters |
| JP2795183B2 (ja) * | 1994-08-08 | 1998-09-10 | 松下電器産業株式会社 | 静止形無効電力補償装置 |
| US5705902A (en) * | 1995-02-03 | 1998-01-06 | The Regents Of The University Of California | Halbach array DC motor/generator |
| US6025968A (en) * | 1997-06-23 | 2000-02-15 | International Business Machines Corporation | Load/unload disk drive with multistage retract circuit for parking the head carriers on power down |
| US6804127B2 (en) * | 2002-11-19 | 2004-10-12 | Wilcon Inc. | Reduced capacitance AC/DC/AC power converter |
-
2005
- 2005-12-23 FR FR0513296A patent/FR2895593B1/fr not_active Expired - Fee Related
-
2006
- 2006-12-13 US US12/158,095 patent/US20090224711A1/en not_active Abandoned
- 2006-12-13 EP EP06842157A patent/EP1964252B1/fr not_active Not-in-force
- 2006-12-13 CN CN2006800487641A patent/CN101346874B/zh not_active Expired - Fee Related
- 2006-12-13 WO PCT/FR2006/051347 patent/WO2007074268A2/fr not_active Ceased
- 2006-12-13 AT AT06842157T patent/ATE458297T1/de not_active IP Right Cessation
- 2006-12-13 DE DE602006012369T patent/DE602006012369D1/de active Active
- 2006-12-13 JP JP2008546545A patent/JP2009521201A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP1964252B1 (fr) | 2010-02-17 |
| ATE458297T1 (de) | 2010-03-15 |
| US20090224711A1 (en) | 2009-09-10 |
| WO2007074268A3 (fr) | 2007-09-07 |
| JP2009521201A (ja) | 2009-05-28 |
| FR2895593A1 (fr) | 2007-06-29 |
| DE602006012369D1 (de) | 2010-04-01 |
| EP1964252A2 (fr) | 2008-09-03 |
| CN101346874A (zh) | 2009-01-14 |
| CN101346874B (zh) | 2011-11-16 |
| FR2895593B1 (fr) | 2008-03-07 |
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