WO2018205101A1 - 高压开关设备的电机装置 - Google Patents

高压开关设备的电机装置 Download PDF

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Publication number
WO2018205101A1
WO2018205101A1 PCT/CN2017/083483 CN2017083483W WO2018205101A1 WO 2018205101 A1 WO2018205101 A1 WO 2018205101A1 CN 2017083483 W CN2017083483 W CN 2017083483W WO 2018205101 A1 WO2018205101 A1 WO 2018205101A1
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WIPO (PCT)
Prior art keywords
motor
brushless
high voltage
voltage switchgear
signal
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
Application number
PCT/CN2017/083483
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English (en)
French (fr)
Inventor
庄志坚
卢聪文
张欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Schweiz AG
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ABB Schweiz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Schweiz AG filed Critical ABB Schweiz AG
Priority to EP17909561.7A priority Critical patent/EP3624154B1/en
Priority to CN201780090064.7A priority patent/CN110574133B/zh
Priority to PCT/CN2017/083483 priority patent/WO2018205101A1/zh
Publication of WO2018205101A1 publication Critical patent/WO2018205101A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/66—Power reset mechanisms
    • H01H71/70—Power reset mechanisms actuated by electric motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor

Definitions

  • the invention belongs to the technical field of machinery and electric power products, and particularly relates to the technical field of high voltage switchgear.
  • it relates to the technical field of motor equipment that acts with a circuit breaker, for operating the circuit breaker and its chassis, and for storing the energy of the spring operating mechanism before operation.
  • the current field of power switches typically uses conventional brushed motors, such as DC permanent magnet motors or series-excited motors. Based on the technical characteristics of traditional motors, if it is necessary to start, stop or reverse the control of the motor, it is often necessary to use auxiliary electronic and electrical devices, such as relays, rectifier bridges, position switches, and the like. With the development trend of intelligent power grid equipment, it is often necessary to add sensors and communication devices.
  • the structure includes: series excitation motor, reducer and clutch, electrical limit switch, Hall current sensor, Hall voltage sensor and communication device.
  • the present invention is directed to the disadvantages of the motor device of the high voltage switchgear in the prior art, and provides a motor device for a high voltage switchgear, comprising a brushless DC motor, a drive and control device, and a speed reducer;
  • the brushless DC motor includes a rotor and a stator;
  • the sleeve is sleeved in the stator and mounted in the motor housing;
  • the two ends of the rotor are respectively sleeved with rolling bearings, and the bearing sleeve is sleeved on the motor drive shaft;
  • the driving and control device comprises a microprocessor, a semiconductor switch and a power supply module.
  • the utility model is used for supplying power to the microprocessor; the microprocessor controls the starting, stopping and forward rotation and reverse rotation of the brushless DC motor through the semiconductor switch; the speed reducer comprises a gear transmission system and an output shaft composed of a plurality of meshing gears, The gear transmission system transmits the motion of the motor drive shaft to the output shaft.
  • the motor assembly further includes a clutch for controlling coupling and disconnection of the brushless DC motor to the motor load.
  • the clutch includes a pin; when the motor assembly of the high voltage switchgear is full of energy, the pin is disengaged from the gearing of the reducer The position of the output shaft of the retarder is disengaged from the clutch transmission system.
  • the motor assembly further includes a power cutoff device for shutting off power to the brushless DC motor when the motor device of the high voltage switchgear is fully charged.
  • the clutch includes an output cam that fits over the output shaft and rotates with the output shaft; the output cam is provided with an open slot for when the motor device of the high voltage switchgear is fully charged When the cam rotates until the open slot is aligned with the contact wheel of the micro switch, the contact wheel of the micro switch is disengaged from the output cam at the position of the open slot, thereby cutting off the power supply of the brushless DC motor.
  • the motor assembly further includes a motor input signal controller for inputting the DC brushless motor start, stop, and forward and reverse signals.
  • the motor input signal controller is connected to an external power source for supplying power to the drive and control device;
  • the drive and control device is based on an external command signal input by the motor input signal controller, and is based on The position signal of the circuit breaker, the information of the circuit breaker opening and closing state and the opening and closing signal of the ground knife generate a motor control signal of the DC brushless motor.
  • the drive and control device further comprises a communication module for transmitting parameters of the brushless DC motor to the upper receiving unit.
  • the communication module transmits the parameters of the brushless DC motor by serial communication or controller LAN bus communication.
  • the drive and control device includes a power module adapted to provide a low voltage DC power supply for a 24V-250V AC voltage transformation.
  • the drive and control device comprises a control module, It is used to control the semiconductor switch and cut off the power supply of the DC brushless motor when the DC brushless motor is overloaded.
  • the driving and control device includes a monitoring module for detecting an external command signal input by the motor input signal controller and a position signal of the circuit breaker, a circuit breaker opening and closing state signal, and a ground. The closing signal of the knife.
  • the monitoring module continuously scans the ground knife closing signal and the circuit breaker opening and closing signal during the operation of the motor device of the high voltage switching device, and the local knife and the circuit breaker have any one of them.
  • the control module immediately stops the motor and the signal is blocked, thereby locking the system.
  • the microprocessor determines whether the condition for executing the external command signal action is satisfied; if the condition is satisfied, the motor executes the corresponding external command Signal; if any of the conditions are not met, the motor does not execute an external command signal.
  • the drive and control device stops the DC brushless motor and the system is blocked; if the corner of the DC brushless motor is There is no change within the specified time.
  • the drive and control device stops the DC brushless motor and the system is locked. When the signal is blocked, the system is in the locked state. Before the manual unlocking or before the power is turned on, the motor device cannot continue to run and start.
  • the motor device of the high voltage switchgear of the present invention can not only integrate the drive control and the communication module with the motor body. Moreover, electronic commutation is used, and there is no open flame.
  • Brushless DC motor motors have a long life and can usually run continuously for more than 5,000 hours. At the same time, the efficiency of brushless DC motors is very high, usually up to 70%, while the traditional motors can only reach 30%-50%. Brushless DC motors have very low vibration and noise for smooth operation. In tune In terms of speed, brushless DC motors have natural advantages, not only through voltage regulation, but also through frequency regulation.
  • Figure 1 is a view of a preferred embodiment of the present invention, a motor device of a high voltage switchgear for use in an exploded view of an electric chassis;
  • FIG. 2 is a schematic view showing the structure of a DC brushless motor of a motor device of a high voltage switchgear according to a preferred embodiment of the present invention
  • Figure 3 is a block diagram showing the structure of a driving and control device for a motor unit of a high-voltage switchgear for an electric chassis vehicle according to a preferred embodiment of the present invention
  • FIG. 4 is a schematic structural view of a reduction device for a motor device of a high voltage switchgear for an electric chassis vehicle according to a preferred embodiment of the present invention
  • Figure 5 is a schematic view of a motor input signal controller input port of a motor device for a high voltage switchgear of an electric chassis vehicle according to a preferred embodiment of the present invention
  • Figure 6 is a circuit diagram of a driving and control device for a motor device of a high voltage switchgear for an electric chassis vehicle according to a preferred embodiment of the present invention
  • Figure 7 is a preferred embodiment of the present invention, the motor device for the high-voltage switchgear of the electric chassis vehicle according to the input external command signal and the collected circuit breaker position signal, the circuit breaker opening and closing state signal and the ground knife A logic block diagram of the closing signal to determine how the motor operates;
  • Figure 8 is a schematic view showing the structure of a motor device for a high voltage switchgear of a spring operating mechanism energy storage motor according to still another preferred embodiment of the present invention.
  • Figure 9 is a schematic view showing the overall transmission of the deceleration device of the motor device of the high voltage switchgear as the spring operating mechanism energy storage motor according to still another preferred embodiment of the present invention.
  • FIGS. 10A-10B are schematic views showing the structure of a decelerating device for a motor device of a high voltage switchgear as an energy storage motor, wherein FIG. 10A is a perspective view and FIG. 10B is a cross-sectional view;
  • Figure 11 is a schematic view showing the structure and state transition of a clutch device for a motor device of a high voltage switchgear as an energy storage motor according to another preferred embodiment of the present invention
  • FIG. 12A-12B are another preferred embodiment of the present invention, the clutch device for the motor device of the high voltage switchgear of the energy storage motor is compared before and after the motor is full of energy, wherein FIG. 12A is before the motor is full of energy.
  • FIG. 12B Schematic diagram of normal operation of the motor
  • Figure 12B is a schematic diagram of the power supply of the motor after the motor is full of energy.
  • FIG. 1 is a diagram showing a structural exploded view of an electric chassis vehicle in accordance with a preferred embodiment of the present invention.
  • the motor arrangement of the high voltage switchgear, including the brushless DC motor 20 includes the drive and control unit 30 and the reduction unit 40.
  • the brushless DC motor 20 includes a rotor 202 and a stator 203; the rotor 202 is sleeved in the stator 203 and mounted in the motor housing 201; The two ends of the rotor 203 are respectively sleeved with a rolling bearing 204, and the bearing 204 is sleeved on the motor driving shaft 208. End cap 206 is used to secure drive and control device 30.
  • the drive and control device 30 includes a microprocessor 301, a semiconductor switch 302, and a power supply module 302 for supplying power to the microprocessor 301.
  • the microprocessor 301 controls the start, stop, and positive of the brushless DC motor 20 through the semiconductor switch 302. Turn, reverse.
  • the semiconductor switch here is a series of semiconductor switches, and a semiconductor switch is illustrated in the figure as an example only. Power supply is the basis for the reliable operation of intelligent modules. It must meet the EMC requirements of surge, fast transient, radiated electromagnetic field, etc. At the same time, it should fully consider the different voltage levels, AC and DC conditions, to meet the use of different working conditions.
  • the retarder 40 includes a gearing system 401 and an output shaft 402 that are comprised of a plurality of intermeshing gears that transmit motion of the motor drive shaft 208 to the output shaft 402.
  • the reducer end cover 407 has an internal gear and a fixed frame; the gear transmission system 401 is a differential planetary gear train of the three-stage planetary gear transmission stroke, and finally transmits the required rotation speed and torque to the output shaft 402.
  • the cam 403 is mated to the output shaft 402 and is rotatable under the rotation of the output shaft 402.
  • the output shaft 402 has a keyway and a flat key 408 as a mechanical interface for the next stage of transmission.
  • Figure 5 is a preferred embodiment of a motor arrangement for a high voltage switchgear of an electric chassis vehicle of the present invention, the motor input signal controller input port intent.
  • port 3-5 is the command signal
  • port 6-10 is the position signal.
  • Figure 6 shows the circuit schematic of any of the 3-10 circuits.
  • Fig. 6 is a circuit diagram showing a preferred embodiment of a motor device for a high voltage switchgear of an electric chassis vehicle according to the present invention, a drive and control device.
  • SK is the position signal, operation The passive mechanical contact of the command is closed or separated when the position signal changes or the operation command is applied;
  • U1 is an optocoupler, which acts to isolate strong and weak electricity, and at the same time converts the strong electric voltage signal into a microcontroller.
  • Identifiable weak current level signal; R1 is a current limiting resistor. When SK is closed, it provides about 1mA of on-current for the optocoupler. Therefore, the value of R1 should be determined according to the rated voltage of DC; C1 and R1 form an RC filter circuit.
  • D1 acts to protect the diode inside the optocoupler.
  • D1 When the DC power supply is reversed or the DC negative terminal is subjected to differential mode interference higher than the positive terminal, D1 is turned on. Forming a loop, the reverse voltage difference of the diode inside the optocoupler is 0.7V, and thus is protected; R3 and C2 form an RC filter circuit at the output end of the optocoupler to improve the stability of the BI level on the weak side.
  • C1 and C2 cause signal delay, which will increase the position signal and the time when the command is input to the microcontroller for identification. They should be properly adjusted in practical applications.
  • the motor device for a high voltage switchgear of an electric chassis vehicle according to the present invention, the motor device of the high voltage switchgear according to the input external command signal and the collected circuit breaker position signal, the circuit breaker opening and closing state signal And the logic block diagram of the grounding knife's opening and closing signal to determine how the motor operates.
  • the system initialization and overvoltage detection are first performed. If the overvoltage is detected and exceeds a certain threshold, the system is in the locked state. Before the unlocking, the motor cannot start normally regardless of the conditions; if the system overvoltage detection Pass, the motor is in a standby state, and it is detected in real time whether there is an external command signal input;
  • the motor When the motor is started, during the movement (before reaching the corresponding stop position), the motor is still constantly scanning its condition signal (ground knife position signal and breaker position signal), as long as one of the conditions is not met, the motor Should stop immediately and the signal is blocked; when the signal is locked, the system is in a locked state, and no matter what conditions are met before the artificial unlocking, the system cannot continue to operate and start normally;
  • condition signal ground knife position signal and breaker position signal
  • the reset signal is the unlock signal; when the motor starts, if the signal reaches the corresponding position, that is, the signal condition meets the normal in-position stop, the motor stops and continues to wait for the next command.
  • the motor device of the high-voltage switchgear of the present invention is used for the specific working principle of the electric chassis car, and the like, and the detailed description of the specific structure of the motor device of the high-voltage switchgear of the present invention will be described in detail.
  • FIG. 8 is a structural schematic view of a motor apparatus for a high voltage switchgear of a spring operating mechanism energy storage motor in accordance with still another preferred embodiment of the present invention.
  • the motor device of the high voltage switchgear includes a brushless DC motor 20, a drive and control device 30, and a reduction gear 40.
  • the DC brushless motor 20 and the drive and control device 30 are not shown, and the specific structure thereof is referred to the motor device of the front high voltage switch device for the electric chassis.
  • the preferred embodiment of the car is a structural schematic view of a motor apparatus for a high voltage switchgear of a spring operating mechanism energy storage motor in accordance with still another preferred embodiment of the present invention.
  • the motor device of the high voltage switchgear includes a brushless DC motor 20, a drive and control device 30, and a reduction gear 40.
  • the DC brushless motor 20 and the drive and control device 30 are not shown, and the specific structure thereof is referred to the motor device of the front high voltage switch device for the electric chassis.
  • Fig. 9 is a schematic view showing the overall transmission of the speed reducing device of the motor unit for the high voltage switchgear of the spring operating mechanism energy storage motor in this embodiment.
  • the energy storage motor is passed through a four-stage transmission, wherein the first stage is a worm gear, and the rotation of the motor output shaft 208 is transmitted to the gear transmission system 402, in accordance with an embodiment of the invention, such as the first stage.
  • the transmission ratio R1 for the worm gear is 40; the transmission ratio R2 of the second-stage reduction transmission is 3.3, the transmission ratio R3 of the third-stage reduction transmission is 4, and the transmission ratio R4 of the fourth-stage reduction transmission is 4.23.
  • the second to fourth stages are decelerated into a standard spur gear, and finally the required speed and torque are transmitted through the output shaft to the corresponding load, ie the spring operating mechanism.
  • FIG. 10A-10B is a schematic view showing the structure of a deceleration device for a motor device of a high voltage switchgear of an energy storage motor, wherein FIG. 10A is a perspective view and FIG. 10B is a cross-sectional view.
  • the motor assembly of the high voltage switchgear also includes a clutch 50 for controlling the coupling and disconnection of the brushless DC motor 20 from the motor load.
  • the motor load can be different depending on the application.
  • the motor load is a circuit breaker chassis in the first preferred embodiment.
  • the motor load is spring operated. mechanism.
  • 10A also shows the position where the motor arrangement of the high voltage switchgear is not full of energy, the motor drive shaft 208 of the brushless DC motor is driven by the gear drive system 401, and the final output is the output shaft 402.
  • the output shaft 402 rotates less than 360° every time the energy storage device performs an operation. Before the output shaft 402 does not reach the full energy position, the force and torque are coupled to the output wheel 406 by the pin 502 and then transmitted to the output shaft 402 through the output wheel.
  • FIG 11 is a preferred embodiment of the invention for use as a high voltage opener for an energy storage motor Schematic diagram of the structure and state transition of the clutch device of the motor device of the device.
  • the clutch 50 includes a pin 502 and a compression spring 5023.
  • the output shaft 402 cannot continue to rotate because the load of the motor device is full, and if the motor 20 is powered by inertia or has not been synchronously powered off, the output is driven.
  • the wheel 406 rotates such that the pin 502 slides along the inner arcuate slot 409.
  • the arcuate slot 409 snaps the pin 502 into the pin slot 4061 on the output wheel 406 and compresses the spring 5023.
  • the pin 502 is disengaged from the gearing system 401 of the speed reducer 40, thereby disengaging the output shaft 402 of the retarder 40 from the clutch transmission system 401.
  • the drive of the brushless DC motor is no longer transmitted to the output shaft 402.
  • the pin 502 will be gradually reset along the inner arc groove 409 under the action of the spring 5023 as the output wheel 406 rotates, knowing to re-engage the arc groove 409.
  • the corresponding position further drives the output shaft 402 to transmit corresponding forces and moments.
  • the motor device of the circuit breaker further includes a power cutoff device for cutting off the power supply of the brushless DC motor 20 when the motor device of the high voltage switchgear is fully charged.
  • 12A-12B is a preferred embodiment of the present invention, the clutch device for the motor device of the high voltage switchgear as the energy storage motor is compared before and after the motor is full of energy, wherein FIG. 12A is the motor full of energy. Schematic diagram of normal operation of the front motor.
  • FIG 12B is a schematic diagram of the motor cut-point power supply after the motor is fully charged.
  • the clutch 50 includes an output cam 503 that fits over the output shaft 402 and rotates with the output shaft 402.
  • the output cam 503 is provided with an open slot 5031 for rotating the cam 503 to when the motor of the high voltage switchgear is fully charged.
  • the opening groove 5031 is aligned with the contact wheel 9031 of the micro switch 903
  • the contact wheel 9031 of the micro switch 903 is disengaged from the cam 503 at the position of the opening groove 5031, thereby cutting off the power supply of the brushless DC motor 20.
  • the motor assembly of the high voltage switchgear also includes a motor input signal controller 60 for inputting the DC brushless motor 20 to start, stop, and forward and reverse signals.
  • the motor input signal controller 60 is connected to an external power source for supplying power to the drive and control device 30; the drive and control device 30 is based on an external command signal input by the motor input signal controller 60, and based on the position signal of the circuit breaker, open circuit The device closes the closing state information and the opening and closing signal of the ground knife to generate a motor control signal of the DC brushless motor 20.
  • the drive and control device 30 further includes a communication module 305 for transmitting the parameters of the brushless DC motor 20 to the upper receiving unit.
  • the communication module 305 transmits the parameters of the DC brushless motor 20 by serial communication or controller LAN bus communication.
  • the communication module 305 adopts an electrically isolated RS485 or CAN field bus mode at the physical layer, and the communication protocol supports Modbus to transmit motor operation data and curves.
  • the drive and control device 30 further includes a power module 306 adapted to provide a low voltage DC power supply for a 24V-250V AC voltage transformation.
  • a control module 307 is further included for controlling the semiconductor switch 302 to cut off the power supply of the brushless DC motor 20 when the DC brushless motor 20 is overloaded.
  • the monitoring module 308 is configured to detect an external command signal input by the motor input signal controller 60 and a position signal of the circuit breaker, a circuit breaker opening and closing state signal, and a grounding and closing signal of the ground knife. The monitoring module 308 continuously scans the ground knife closing signal and the circuit breaker opening and closing signal during the operation of the motor device of the high voltage switch device.
  • the control module 307 When any of the local knife and the circuit breaker is not in the open state, the control module 307 immediately The motor is stopped and the signal is blocked, thereby locking the system.
  • the monitoring module 308 detects the external command signal input by the motor input signal controller 60, the hand truck pushes or the hand truck pushes out, and the microprocessor 301 determines whether it is full.
  • the condition for executing the external command signal action if the condition is met, the motor executes the corresponding external command signal; if any of the conditions is not satisfied, the motor does not execute the external command signal.
  • the control module 307 adopts an MCU with strong anti-interference performance and a control current to perform closed-loop motor control.
  • the command given by the user is that the handle car is propelled, at this time, detecting whether the circuit breaker is opened, whether the ground knife is opened, and whether the circuit breaker is not in the working position, if the three are simultaneously Satisfied, the motor performs the pusher car operation. Otherwise, if any item is not met, the motor will not perform the operation.
  • the command given by the user is that the handlebar is pushed out, at this time, whether the circuit breaker is opened or not, whether the ground knife is opened or not, and whether the circuit breaker is not in the test position, if the three are satisfied at the same time, the motor executes the pusher. Car operation. Otherwise, if any item is not met, the motor will not perform the operation.
  • the monitoring module 308 also continuously monitors the operating state of the DC brushless motor during operation of the motor. If the DC brushless motor current exceeds a specified threshold, such as operating at 24V DC and the current exceeds 2.5A, the drive and control unit 30 stops the motor and the system is blocked. For example, if the angle of the motor does not change within a specified time, for example, in a brushless DC motor, there is a Hall position sensor for detecting the rotational position of the motor, for example, within 2 seconds, if the motor angle change is not detected, If a fault may occur or is blocked, the drive and control unit 30 stops the motor and the system is blocked.
  • a specified threshold such as operating at 24V DC and the current exceeds 2.5A
  • the motor device of the invention is free from the complexity of the traditional motor intelligent system. With the natural advantages of brushless DC motors, it is not only possible to integrate the drive control and communication modules with the motor body. Moreover, electronic commutation is used, and there is no open flame. Brushless DC motor has a long life and passes through It can often run continuously for more than 5,000 hours. At the same time, the efficiency of brushless DC motors is very high, usually up to 70%, while the traditional motors can only reach 30%-50%. Brushless DC motors have very low vibration and noise for smooth operation. In terms of speed regulation, brushless DC motors have natural advantages, not only through voltage regulation, but also through frequency regulation.
  • the motor for the intelligent circuit breaker based on the brushless DC motor not only inherits the advantages of the brushless motor naturally, but also has a simple and compact structure and is easy to maintain, and improves the system of the whole machine, compared with the motor intelligent system for the conventional circuit breaker. Reliability, while greatly reducing the cost of the overall system.
  • the motor device of the high-voltage switchgear provided by the invention first introduces a DC brushless motor, and secondly, adopts an integrated drive and control device, which integrates various functions such as driving, protection, communication, power supply control and supply. Further, the motor device of the high-voltage switchgear provided by the invention has a novel and reasonable design and a simple structure.
  • the design of the clutch is different from the existing one. It can not only control the off-and-close of the DC brushless motor drive, but also has a load. When the motor device is full of energy, it can automatically disengage from the transmission system.
  • the further optimized design of the clutch also allows the power to the DC brushless motor to be automatically cut off as needed.

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Abstract

一种高压开关设备的电机装置，包括直流无刷电机(20)，驱动和控制装置(30)以及减速装置(40)；直流无刷电机(20)包括转子(202)和定子(203)；转子(202)套接于定子(203)内，并安装于电机壳体(201)内；所述的转子(202)的两端分别套接有滚动轴承(204)，轴承(204)套于电机驱动轴(208)上；驱动和控制装置(30)包括微处理器(301)、半导体开关(302)和供电模块(303)，其用于给微处理器(301)供电；微处理器(301)通过半导体开关(302)，控制直流无刷电机(20)的启动、停止以及正转、反转；减速器(40)包括多个相互啮合的齿轮组成的齿轮传动系统(401)和输出轴(402)，所述齿轮传动系统(401)将电机驱动轴(208)的运动传输到输出轴(402)。

Description

高压开关设备的电机装置 技术领域
本发明属于机械和电力产品技术领域，具体涉及高压开关设备技术领域。尤其涉及跟断路器作用的电机设备技术领域，用于对断路器及其底盘车操作，以及操作前的弹簧操动机构储能等。
背景技术
当前的电力开关领域，涉及到电机操作的，通常使用传统的有刷电机，如直流永磁电机或串励电机。基于传统电机的技术特点，如果需要对电机进行启动，停止或是正反转的控制时，往往需要借助辅助的电子电器装置，如继电器，整流桥，位置开关等。随着电网设备智能化的发展潮流，往往需要添加传感器及通信装置。
基于当前电力开关中电机的重要应用，有弹簧操动机构的电动储能操作，可移开式断路器的电动底盘车，电动地刀的合分闸操作，三工位开关的电动操作等。本文将以弹簧操动机构储能电机和可移开式断路器的电动底盘车应用进行举例说明。
电机在弹簧机构的储能应用，在典型的智能断路器中，结构包括：串励电机、减速器和离合器，电气限位开关、霍尔电流传感器、霍尔电压传感器以及通信装置。
电机在可移开式断路器的电动底盘车的应用，在典型的智能远程操作断路器中，结构包括：永磁直流电机、减速器、离合器、电气限位开 关、霍尔电流传感器、霍尔电压传感器和电机控制及通信设备。
上述现有的电机配合的减速器和离合器存在结构复杂，功能不够完善等缺点。
无论是传统永磁直流或是串励电机，皆因有机械换相碳刷，可能会有碳刷的寿命问题，且有电火花，易着火。其次电机的噪音较大，且电机效率较低等问题。若需要控制电机正反转，如永磁直流电机，则需要复杂的继电器控制回路切换输入电机的正负极性来加以实现，控制设备机构较为复杂，且成本高。
发明内容
本发明针对现有技术中高压开关设备的电机装置的缺点，提供一种高压开关设备的电机装置，包括直流无刷电机、驱动和控制装置以及减速装置；直流无刷电机包括转子和定子；转子套接于定子内，并安装于电机壳体内；所述的转子的两端分别套接有滚动轴承，轴承套于电机驱动轴上；驱动和控制装置包括微处理器、半导体开关和供电模块，其用于给微处理器供电；微处理器通过半导体开关，控制直流无刷电机的启动、停止以及正转、反转；减速器包括多个相互啮合的齿轮组成的齿轮传动系统和输出轴，所述齿轮传动系统将电机驱动轴的运动传输到输出轴。
根据本发明的最佳实施例，电机装置还包括离合器，用于控制直流无刷电机与电机负载的耦合与断开。
根据本发明的最佳实施例，所述离合器包括销轴；当高压开关设备的电机装置储满能量时，所述销轴脱开与减速器的齿轮传动系统卡紧 的位置，从而使减速器的输出轴与离合器传动系统脱离传动配合。
根据本发明的最佳实施例，电机装置还包括电源切断装置，用于在高压开关设备的电机装置储满能量时，切断直流无刷电机的供电。
根据本发明的最佳实施例，所述离合器包括输出凸轮，其套装在输出轴上，并随输出轴一起转动；输出凸轮设有开口槽，用于当高压开关设备的电机装置储满能量时，凸轮旋转到该开口槽与微动开关的接触轮对准时，微动开关的接触轮在开口槽位置与输出凸轮脱开，从而切断直流无刷电机的供电。
根据本发明的最佳实施例，电机装置还包括电机输入信号控制器，用于输入直流无刷电机启动、停止以及正转、反转信号。
根据本发明的最佳实施例，所述电机输入信号控制器，连接外部电源，用于给驱动和控制装置供电；所述驱动和控制装置根据电机输入信号控制器输入的外部命令信号，并基于断路器的位置信号、断路器分合闸状态信息以及地刀的分合闸信号，生成直流无刷电机的电机控制信号。
根据本发明的最佳实施例，驱动和控制装置还包括通信模块，用于将直流无刷电机的参数传输到上层接收单元。
根据本发明的最佳实施例，所述的通信模块，采用串口通信或者控制器局域网总线通信传输直流无刷电机的参数。
根据本发明的最佳实施例，所述驱动和控制装置包括电源模块，其适应于对24V-250V交流电压变压，提供低压直流供电。
根据本发明的最佳实施例，所述的驱动和控制装置，包括控制模块， 用于在直流无刷电机过载时，控制半导体开关，切断直流无刷电机的供电。
根据本发明的最佳实施例，所述的驱动和控制装置，包括监测模块，用于检测电机输入信号控制器输入的外部命令信号和断路器的位置信号、断路器分合闸状态信号以及地刀的分合闸信号。
根据本发明的最佳实施例，所述监测模块在高压开关设备的电机装置运行过程中，持续扫描地刀分合闸信号与断路器分合闸信号，当地刀和断路器有任何一个不分闸时，控制模块立即停转电机且信号闭锁，从而闭锁系统。
根据本发明的最佳实施例，当监测模块检测到电机输入信号控制器输入的外部命令信号时，微处理器判断是否满足执行外部命令信号动作的条件；如果满足条件，电机执行相应的外部命令信号；如果有任意一条件不满足，电机不执行外部命令信号。
根据本发明的最佳实施例，当电机运转过程中：若直流无刷电机的电流超过所规定的阈值，驱动和控制装置停转直流无刷电机且系统闭锁；若直流无刷电机的转角在规定的时间内没有变化，驱动和控制装置停转直流无刷电机且系统闭锁；当信号闭锁后，系统处于闭锁状态，在人为解锁前或重新上电前，电机装置不能继续运转和启动。
本发明的高压开关设备的电机装置，不仅能够将驱动控制与通信模块与电机本体集成在一起。而且采用电子换相，无明火。无刷直流电机电机寿命长，通常可以连续运转5000小时以上。同时，无刷直流电机的效率非常高，通常可达70％以上，而传统的电机只能够达到30％-50％左右。无刷直流电机的振动和噪音都非常小，可以实现平稳运行。在调 速方面，无刷直流电机有天然的优势，不仅可以通过电压调速，也可以通过频率调速。
附图说明
图1是本发明的一最佳实施例，高压开关设备的电机装置用于电动底盘车的结构爆炸图；
图2是本发明的一最佳实施例，高压开关设备的电机装置的直流无刷电机结构示意图；
图3是本发明的一最佳实施例，用于电动底盘车的高压开关设备的电机装置的驱动和控制装置结构框图；
图4是本发明的一最佳实施例，用于电动底盘车的高压开关设备的电机装置的减速装置结构示意图；
图5是本发明的一最佳实施例，用于电动底盘车的高压开关设备的电机装置的电机输入信号控制器输入端口意图；
图6是本发明的一最佳实施例，用于电动底盘车的高压开关设备的电机装置的驱动和控制装置电路示意图；
图7是本发明的一最佳实施例，用于电动底盘车的高压开关设备的电机装置根据输入的外部命令信号和采集的断路器位置信号、断路器分合闸状态信号以及地刀的分合闸信号判断电机如何运行的逻辑框图；
图8是本发明的又一最佳实施例，用于作为弹簧操动机构储能电机的高压开关设备的电机装置的结构示意图；
图9是本发明的又一最佳实施例，用于作为弹簧操动机构储能电机的高压开关设备的电机装置的减速装置总体传动示意图；
图10A-10B是本发明的另一最佳实施例，用于作为储能电机的高压开关设备的电机装置的减速装置结构示意图，其中，图10A是立体示意图，图10B是剖面图；
图11是本发明的另一最佳实施例，用于作为储能电机的高压开关设备的电机装置的离合装置结构和状态转换示意图；
图12A-12B是本发明的另一最佳实施例，用于作为储能电机的高压开关设备的电机装置的离合装置在电机储满能量前后对比示意图，其中，图12A是电机储满能量前电机正常运转示意图，图12B是电机储满能量后，电机切点电源示意图。
具体实施方式
以下参考附图，给出了本发明的可选实施方式的具体描述。
图1是本发明的一最佳实施例，高压开关设备的电机装置用于电动底盘车的结构爆炸图。根据本发明的这一最佳实施例，高压开关设备的电机装置，包括直流无刷电机20，包括驱动和控制装置30以及减速装置40。
图2所示为高压开关设备的电机装置的直流无刷电机结构示意图，直流无刷电机20包括转子202和定子203；转子202套接于定子203内，并安装于电机壳体201内；所述的转子203的两端分别套接有滚动轴承204，轴承204套于电机驱动轴208上。端盖206用于固定驱动和控制装置30。
图3是本发明用于电动底盘车的高压开关设备的电机装置，驱动和控制装置结构框图。驱动和控制装置30包括微处理器301、半导体开关302和供电模块302，其用于给微处理器301供电；微处理器301通过半导体开关302，控制直流无刷电机20的启动、停止以及正转、反转。需要指明，这里半导体开关是一系列的半导体开关，图中用一个半导体开关仅作为示例予以说明。供电是智能模块可靠运行的根本，设计上要满足浪涌、快速瞬变、辐射电磁场等EMC要求，同时，应充分考虑不同电压等级、交直流的情况，满足不同工况下的使用。
图4所示是本发明用于电动底盘车的高压开关设备的电机装置的最佳实施例，减速装置的结构示意图。减速器40包括多个相互啮合的齿轮组成的齿轮传动系统401和输出轴402，所述齿轮传动系统401将电机驱动轴208的运动传输到输出轴402。
其中减速器端盖407有内齿轮，固定机架；齿轮传动系统401为三级行星齿轮传动行程一个差动的行星轮系，最终传输到输出轴402所需要的转速与力矩。凸轮403于输出轴402配合连接，可以在输出轴402的转动下旋转。输出轴402上有键槽与平键408，作为下一级传动的机械接口。
图5是本发明用于电动底盘车的高压开关设备的电机装置的最佳实施例，电机输入信号控制器输入端口意图。其中3-5号端口为命令信号，6-10端口为为位置信号。图6所示为3-10任意一路的电路原理图。
图6是本发明用于电动底盘车的高压开关设备的电机装置的最佳实施例，驱动和控制装置电路示意图。图中，SK为位置信号、操 作命令的无源机械触点，在位置信号变化或施加操作命令时，闭合或分开；U1为光耦，起到隔离强、弱电的作用，同时，将强电的电压信号转为微控制器可识别的弱电电平信号；R1为限流电阻，在SK闭合时，为光耦提供约1mA的导通电流，因此R1的值应根据DC的额定电压确定；C1与R1组成RC滤波电路，可滤除SK抖动或输入导线上受到的差模干扰信号；D1起到保护光耦内部的二极管的作用，当DC电源接反或DC负端受到高于正端的差模干扰时，D1导通形成回路，光耦内部的二极管反向压差为0.7V而已，从而被保护住；R3、C2组成光耦输出端的RC滤波电路，提高弱电侧BI电平的稳定性。需要注意的是，C1、C2导致信号延时，将增加位置信号、命令输入到微控制器识别的时间，应在实际应用时，适当调节它们的值。
下表所示电路逻辑表：其中1标示位置或命令信号有效，0表示无效，X表示不做要求。
Figure PCTCN2017083483-appb-000001
图7是本发明用于电动底盘车的高压开关设备的电机装置的最佳实施例，高压开关设备的电机装置根据输入的外部命令信号和采集的断路器位置信号、断路器分合闸状态信号以及地刀的分合闸信号判断电机如何运行的逻辑框图。
电机上电后，首先进行系统初始化与过电压检测，若检测到过电压且超过一定阈值时，系统处于闭锁状态，在解锁前马达无论满足什么样的条件都无法正常启动；若系统过电压检测通过，电机处于待命状态，实时地检测是否有外部命令信号输入；
当检测到外部信号时(手车推进或者手车推出)，则根据相应的外部信号来检测是否满足执行其动作的条件，如果满足条件，电机执行相应的命令信号；如果有任意一条件不满足，电机不动作。
当电机启动后，在运动过程中(到达相应停止的位置之前)，电机仍然在不断地扫描其条件信号(地刀分位信号与断路器分位信号)，只要有其中一个条件不满足，电机应立即停转且信号闭锁；当信号闭锁后，系统处于闭锁状态，在人为解锁前无论满足什么样的条件都无法正常继续运转和启动；
复位信号即解锁信号；当电机启动后，若抵达相应的位置即信号条件满足正常到位停止时，电机停转并继续等待下一个命令。
本发明的高压开关设备的电机装置用于电动底盘车的具体工作原理等，在详细描述完本发明的高压开关设备的电机装置具体结构后，再详细介绍。
下面将结合附图，描述本发明的又一最佳实施例，高压开关设备的电机装置作为储能电机使用。图8是本发明的又一最佳实施例，用于作为弹簧操动机构储能电机的高压开关设备的电机装置的结构示意图。高压开关设备的电机装置，包括直流无刷电机20、驱动和控制装置30以及减速装置40。图中直流无刷电机20和驱动和控制装置30未示出，其具体结构参考前面高压开关设备的电机装置用于电动底盘 车的最佳实施例。
图9是这一实施例中，用于作为弹簧操动机构储能电机的高压开关设备的电机装置的减速装置总体传动示意图。如图所示，储能电机通过四级传动，其中第一级为轮蜗杆配合，将电机输出轴208的转动，传动到齿轮传动系统402，根据本发明的一个实施例中，例如第一级为涡轮蜗杆的传动比R1为40；第二级减速传动的传动比R2为3.3，第三级减速传动的传动比R3为4，第四级减速传动的传动比R4为4.23。第二至第四级减速为标准直齿轮配合，最终通过输出轴传输所需要的转速和扭矩到相应的负载，即弹簧操动机构。
图10A-10B这一最佳实施例，用于作为储能电机的高压开关设备的电机装置的减速装置结构示意图，其中，图10A是立体示意图，图10B是剖面图。
高压开关设备的电机装置还包括离合器50，用于控制直流无刷电机20与电机负载的耦合与断开。电机负载根据不同的应用情况，可以是不同的。例如，在本发明所列举的上述两个实施例中，电机负载在第一个最佳实施例中为断路器底盘车，在图8-12B介绍的最佳实施例中，电机负载是弹簧操作机构。
如图10A还示出高压开关设备的电机装置未储满能量的位置，直流无刷电机的电机驱动轴208通过齿轮传动系统401传动，最终的输出为输出轴402。其中，储能装置每执行一次操作，输出轴402转动小于360°。当输出轴402未达到储满能量位置前，力和力矩是通过销轴502与输出轮406配合，然后再通过输出轮传输到输出轴402。
图11是本发明的这一最佳实施例，用于作为储能电机的高压开 关设备的电机装置的离合装置结构和状态转换示意图。如图所示，离合器50包括销轴502和压缩弹簧5023。当高压开关设备的电机装置的负载储满能量时，如图所示，输出轴402因为电机装置的负载储满能量而不能继续转动，若电机20由于惯性或是还未同步断电而带动输出轮406旋转，从而销轴502会沿着内弧形槽409滑动。随着销轴502沿着内弧形槽409滑动，弧形槽409会将销轴502卡入输出轮406上的销轴卡槽4061内，并压缩弹簧5023。从而，销轴502脱开与减速器40的齿轮传动系统401卡紧的位置，从而使减速器40的输出轴402与离合器传动系统401脱离传动配合。直流无刷电机的传动不再传递给输出轴402。当电机20再次启动执行下一次储能操作时，销轴502会随着输出轮406的转动，在弹簧5023的作用下，沿着内弧形槽409逐步复位，知道重新卡入弧形槽409相应的位置，进一步带动输出轴402，传递相应的力和力矩。
进一步，断路器的电机装置还包括电源切断装置，用于在高压开关设备的电机装置储满能量时，切断直流无刷电机20的供电。如图12A-12B所示是本发明的最佳实施例，用于作为储能电机的高压开关设备的电机装置的离合装置在电机储满能量前后对比示意图，其中，图12A是电机储满能量前电机正常运转示意图。
图12B是电机储满能量后，电机切点电源示意图。离合器50包括输出凸轮503，其套装在输出轴402上，并随输出轴402一起转动；输出凸轮503设有开口槽5031，用于当高压开关设备的电机装置储满能量时，凸轮503旋转到该开口槽5031与微动开关903的接触轮9031对准时，微动开关903的接触轮9031在开口槽5031位置与凸轮503脱开，从而切断直流无刷电机20的供电。
回到本发明的高压开关设备的电机装置用于电动底盘车实施例，下面介绍具体工作原理。
高压开关设备的电机装置还包括电机输入信号控制器60，用于输入直流无刷电机20启动、停止以及正转、反转信号。电机输入信号控制器60，连接外部电源，用于给驱动和控制装置30供电；所述驱动和控制装置30根据电机输入信号控制器60输入的外部命令信号，并基于断路器的位置信号、断路器分合闸状态信息以及地刀的分合闸信号，生成直流无刷电机20的电机控制信号。
参考图3所示电动底盘车的高压开关设备的电机装置，驱动和控制装置结构框图，驱动和控制装置30还包括通讯模块305，用于将直流无刷电机20的参数传输到上层接收单元。所述的通讯模块305，采用串口通讯或者控制器局域网总线通讯传输直流无刷电机20的参数。通讯模块305在物理层采用电气隔离的RS485或者CAN现场总线方式，通讯协议支持Modbus，传输电机运行数据和曲线。
驱动和控制装置30进一步包括电源模块306，其适应于对24V-250V交流电压变压，提供低压直流供电。还包括控制模块307，用于在直流无刷电机20过载时，控制半导体开关302，切断直流无刷电机20的供电。监测模块308，用于检测电机输入信号控制器60输入的外部命令信号和断路器的位置信号、断路器分合闸状态信号以及地刀的分合闸信号。所述监测模块308在高压开关设备的电机装置运行过程中，持续扫描地刀分合闸信号与断路器分合闸信号，当地刀和断路器有任何一个不是分闸状态时，控制模块307立即停转电机且信号闭锁，从而闭锁系统。当监测模块308检测到电机输入信号控制器60输入的外部命令信号时手车推进或者手车推出，微处理器301判断是否满 足执行外部命令信号动作的条件，如果满足条件，电机执行相应的外部命令信号；如果有任意一条件不满足，电机不执行外部命令信号。控制模块307采用业内抗干扰性能较强的MCU和控制电流，进行闭环式电机控制。
例如，在具体的操作示例中，用户给出的命令是，把手车推进，这时检测断路器是不是分闸，地刀是不是分闸，断路器是不是不在工作位置，如果这三个同时满足，电机执行推进手车操作。否则，任何一项不满足，则电机不执行操作。在比如，用户给出的命令是，把手车推出，这时检测断路器是不是分闸，地刀是不是分闸，断路器是不是不在试验位置，如果这三个同时满足，电机执行推出手车操作。否则，任何一项不满足，则电机不执行操作。
当电机运转过程中，监测模块308还持续监测直流无刷电机的运转状态。若直流无刷电机电流超过所规定的阈值，比如工作在24V直流，电流超过2.5A时，驱动和控制装置30停转电机且系统闭锁。在比如，若电机的转角在规定的时间内没有变化比如，在直流无刷电机中，有霍尔位置传感器，用于检测电机的转动位置，比如2秒内，如果没有检测到电机转角变化，可能发生故障或者被堵住，驱动和控制装置30停转电机且系统闭锁。
当信号闭锁后，系统处于闭锁状态，在人为解锁前或重新上电前，均不能继续运转和启动。这时，无论按推进、推出等操作按钮，电机均不能动作。
本发明的电机装置，摆脱了传统电机智能化系统的繁杂性。借助无刷直流电机天然的优势，不仅能够将驱动控制与通信模块与电机本体集成在一起。而且采用电子换相，无明火。无刷直流电机电机寿命长，通 常可以连续运转5000小时以上。同时，无刷直流电机的效率非常高，通常可达70％以上，而传统的电机只能够达到30％-50％左右。无刷直流电机的振动和噪音都非常小，可以实现平稳运行。在调速方面，无刷直流电机有天然的优势，不仅可以通过电压调速，也可以通过频率调速。
当然，基于无刷直流电机的智能断路器用电机，不仅天然继承了无刷电机的种种优点，与传统断路器用的电机智能系统相比，还具有结构简单且紧凑，易维护，在提高整机系统可靠性的同时，大大降低了整体系统的成本。
本发明提供的高压开关设备的电机装置，首先引入了直流无刷电机，其次，采用集成的驱动和控制装置，综合了驱动、保护、通信、电源控制和供给等多种功能。进一步，本发明提供的高压开关设备的电机装置，减速装置设计新颖合理，结构简单。离合器的设计也不同于现有的，不仅可以控制直流无刷电机驱动的离和合，而且带负载，当电机装置储满能量时，可以自动与传动系统脱离传动配合。离合器的进一步优化设计，还使得根据需要，可以自动切断直流无刷电机的电源。
尽管为说明目的公开了本发明的较佳实施例和附图，但是熟悉本领域技术的人员，在不脱离本发明及所附的权利要求的精神和范围内，可作各种替换、变化和润饰。因此，本发明不应局限于上述作为示例说明的较佳实施例和附图所公开的内容，本发明的保护范围以所附的权利要求书所界定的范围为准。

Claims (15)

  1. 一种高压开关设备的电机装置，包括直流无刷电机(20)，其特征在于，还包括驱动和控制装置(30)以及减速装置(40)；
    直流无刷电机(20)包括转子(202)和定子(203)；转子(202)套接于定子(203)内，并安装于电机壳体(201)内；所述的转子(203)的两端分别套接有滚动轴承(204)，轴承(204)套于电机驱动轴(208)上；
    驱动和控制装置(30)包括微处理器(301)、半导体开关(302)和供电模块(302)，其用于给微处理器(301)供电；微处理器(301)通过半导体开关(302)，控制直流无刷电机(20)的启动、停止以及正转、反转；
    减速器(40)包括多个相互啮合的齿轮组成的齿轮传动系统(401)和输出轴(402)，所述齿轮传动系统(401)将电机驱动轴(208)的运动传输到输出轴(402)。
  2. 如权利要求1所述的高压开关设备的电机装置，其特征在于：还包括离合器(50)，用于控制直流无刷电机(20)与电机负载的耦合与断开。
  3. 如权利要求2所述的高压开关设备的电机装置，其特征在于：所述离合器(50)包括销轴(502)；当高压开关设备的电机装置储满能量时，所述销轴(502)脱开与减速器(40)的齿轮传动系统(401)卡紧的位置，从而使减速器(40)的输出轴(402)与离合器传动系统(401)脱离传动配合。
  4. 如权利要求1所述的高压开关设备的电机装置，其特征在于： 还包括电源切断装置，用于在高压开关设备的电机装置储满能量时，切断直流无刷电机(20)的供电。
  5. 如权利要求1所述的高压开关设备的电机装置，其特征在于：所述离合器(50)包括输出凸轮(503)，其套装在输出轴(402)上，并随输出轴(402)一起转动；输出凸轮(503)设有开口槽(5031)，用于当高压开关设备的电机装置储满能量时，凸轮(503)旋转到该开口槽(5031)与微动开关(903)的接触轮(9031)对准时，微动开关(903)的接触轮(9031)在开口槽(5031)位置与输出凸轮(503)脱开，从而切断直流无刷电机(20)的供电。
  6. 如权利要求1所述的高压开关设备的电机装置，其特征在于：还包括电机输入信号控制器(60)，用于输入直流无刷电机(20)启动、停止以及正转、反转信号。
  7. 如权利要求6所述的高压开关设备的电机装置，其特征在于：所述电机输入信号控制器(60)，连接外部电源，用于给驱动和控制装置(30)供电；所述驱动和控制装置(30)根据电机输入信号控制器(60)输入的外部命令信号，并基于断路器的位置信号、断路器分合闸状态信息以及地刀的分合闸信号，生成直流无刷电机(20)的电机控制信号。
  8. 如权利要求1-5任意一项所述的高压开关设备的电机装置，其特征在于：驱动和控制装置(30)还包括通信模块(305)，用于将直流无刷电机(20)的参数传输到上层接收单元。
  9. 如权利要求8所述的高压开关设备的电机装置，其特征在于：所述的通信模块(305)，采用串口通信或者控制器局域网总线通信 传输直流无刷电机(20)的参数。
  10. 如权利要求8所述的高压开关设备的电机装置，其特征在于：所述驱动和控制装置(30)包括电源模块(306)，其适应于对24V-250V交流电压变压，提供低压直流供电。
  11. 如权利要求8所述的高压开关设备的电机装置，其特征在于：所述的驱动和控制装置(30)，包括控制模块(307)，用于在直流无刷电机(20)过载时，控制半导体开关(308)，切断直流无刷电机(20)的供电。
  12. 如权利要求8所述的高压开关设备的电机装置，其特征在于：所述的驱动和控制装置(30)，包括监测模块(309)，用于检测电机输入信号控制器(60)输入的外部命令信号和断路器的位置信号、断路器分合闸状态信号以及地刀的分合闸信号。
  13. 如权利要求12所述的高压开关设备的电机装置，其特征在于：所述监测模块(309)在高压开关设备的电机装置运行过程中，持续扫描地刀分合闸信号与断路器分合闸信号，当地刀和断路器有任何一个不分闸时，控制模块(307)立即停转电机且信号闭锁，从而闭锁系统。
  14. 如权利要求12所述的高压开关设备的电机装置，其特征在于：当监测模块(309)检测到电机输入信号控制器(60)输入的外部命令信号时，微处理器(301)判断是否满足执行外部命令信号动作的条件；如果满足条件，电机执行相应的外部命令信号；如果有任意一条件不满足，电机不执行外部命令信号。
  15. 如权利要求1所述的高压开关设备的电机装置，其特征在 于，当电机运转过程中：
    若直流无刷电机的电流超过所规定的阈值，驱动和控制装置(30)停转直流无刷电机(20)且系统闭锁；
    若直流无刷电机的转角在规定的时间内没有变化，驱动和控制装置(30)停转直流无刷电机(20)且系统闭锁；
    当信号闭锁后，系统处于闭锁状态，在人为解锁前或重新上电前，电机装置不能继续运转和启动。
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