WO2014026460A1 - Conversion device integrated with switched reluctance motor drive and low-voltage battery charging - Google Patents

Conversion device integrated with switched reluctance motor drive and low-voltage battery charging Download PDF

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Publication number
WO2014026460A1
WO2014026460A1 PCT/CN2012/087909 CN2012087909W WO2014026460A1 WO 2014026460 A1 WO2014026460 A1 WO 2014026460A1 CN 2012087909 W CN2012087909 W CN 2012087909W WO 2014026460 A1 WO2014026460 A1 WO 2014026460A1
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WO
WIPO (PCT)
Prior art keywords
module
low
energy storage
reluctance motor
switched reluctance
Prior art date
Application number
PCT/CN2012/087909
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French (fr)
Chinese (zh)
Inventor
梁嘉宁
徐国卿
蹇林旎
李卫民
常明
王亮荣
Original Assignee
深圳先进技术研究院
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Publication of WO2014026460A1 publication Critical patent/WO2014026460A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • 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
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/16—Regulation of the charging current or voltage by variation of field
    • H02J7/24—Regulation of the charging current or voltage by variation of field using discharge tubes or semiconductor devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B60L2210/12—Buck converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B60L2210/14—Boost converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/18—Reluctance machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • 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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/08—Reluctance motors
    • H02P25/092—Converters specially adapted for controlling reluctance motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the present invention relates to a switched reluctance motor drive system, and more particularly to an integrated switch reluctance motor drive and a low voltage battery charge change device.
  • Switched reluctance motor is a new type of speed-regulating motor.
  • the speed-regulating system has the advantages of DC and AC two-speed system. It is the latest generation of infinitely adjustable after the variable frequency speed control system and brushless DC motor speed control system.
  • Speed system The driving circuit of the prior art switch reluctance motor mainly includes a DC power source, a DC capacitor, an N-phase motor winding, an upper switching device, a lower switching device, an upper freewheeling diode, and a lower freewheeling diode.
  • the above-mentioned DC capacitor mainly serves to buffer the rectifier circuit or the battery and stabilize the DC bus voltage.
  • the N-phase motor winding is connected to the DC bus via a switching device and a freewheeling diode.
  • the upper switching device and the lower freewheeling diode are connected to one end of the phase winding, and the lower switching device and the lower freewheeling diode are connected to the other end of the phase winding.
  • the above-mentioned switched reluctance motor drive circuit is widely used in homes and industries, but this circuit only satisfies the demand of the drive motor, and is used for increasingly frequent electric devices (such as robots, electric cars, electric weeders, etc.). It is also necessary to charge the energy storage power supply.
  • the above-mentioned switched reluctance motor drive circuit cannot meet the needs of charging.
  • Chinese Patent Publication No. Chinese Patent Publication No.
  • CN201956913U discloses an integrated switched reluctance motor drive and charge conversion device, comprising an energy storage module and a drive module connected in series with the energy storage module, and a rectifier module connected to the power grid, and
  • the driving module is connected to the control module, and is respectively connected to the energy storage module and the driving module current conversion module, and controls the rectifying operation of the rectifier module according to a preset program, and controls the rectifier module to the energy storage module. Charging, and controlling the rectifier module and the energy storage module to supply power to the outside.
  • the charging module and the driving of the switched reluctance motor are integrated to realize charging of the energy storage device.
  • this technical solution is only applicable to AC power, especially to AC grid charging. According to the corresponding power factor requirements, the equipment connected to the grid should focus on the charging control and power factor control of the high voltage battery.
  • the on-board charger enables the electric vehicle to take power from the plug of the electric grid to charge the battery of the electric vehicle.
  • a general motor vehicle requires multiple motor drive systems to meet the requirements of different loads (such as tires, blades, etc.).
  • electric vehicles use dual power systems, one is a high-voltage battery that is supplied to the high-voltage drive motor, and the other is a low-voltage battery that is supplied to some low-voltage equipment in the vehicle body. Since the low-voltage battery has a low capacity, a high-voltage battery is generally used to supplement the low-voltage battery.
  • a device for converting high-voltage power to low-voltage power including a DC-DC converter and a charging driving device, needs to be separately provided in the electric vehicle. And other electrical components. In this way, the line inside the electric car Roads and electrical equipment are complicated.
  • the technical problem to be solved by the present invention is that the prior art switch reluctance motor drive and the DC power supply low voltage battery are charged with the use of separate devices, waste equipment and space technical problems, and thus provide integrated switched reluctance motor drive and DC power supply.
  • the present invention provides a conversion device for driving an integrated switched reluctance motor and charging a low voltage battery, comprising: a high voltage energy storage module and a driving module connected to the high voltage energy storage module, and the driving a module connected to the control module, the driving module driving the operation of the switched reluctance motor, further comprising a low voltage energy storage module and a DC-DC conversion module connected to the low voltage energy storage module, the DC-DC conversion module and the
  • the control module is connected to the driving module, the DC-DC conversion module is configured to charge the power of the high-voltage energy storage module to the low-voltage energy storage module, and the control module controls the driving module and the DC-DC conversion The module works.
  • the driving module includes at least two power electronic switches and at least two freewheeling diodes for receiving instruction driving of the control module;
  • the DC-DC conversion module includes a Power electronic switch and a diode.
  • the driving module includes a half bridge inverter of the switched reluctance motor and a body of the switched reluctance motor.
  • the DC-DC conversion module includes a rectification unit and a chopper unit connected to the rectification unit.
  • the rectifying unit is a rectifier and includes a diode.
  • the chopper unit includes a switching device, a negative electrode of a diode of the rectifying unit is connected to a collector of the switching device, and an emission set of the switching device and the low voltage A positive electrode of the low voltage battery of the energy storage module is connected, and a negative electrode of the low voltage battery is connected to a negative electrode of the high voltage battery.
  • the switching device is a triode or a relay.
  • the switching device is a relay
  • the negative pole of the diode of the rectifying unit is connected to one end of the relay, and the other end of the relay is connected to the low voltage battery pack.
  • the conversion device according to the present invention is a single-phase integrated switched reluctance motor drive and low-voltage battery conversion device or a three-phase integrated switched reluctance motor drive and low-voltage battery conversion device.
  • the conversion device of the present invention the single-phase integrated switched reluctance motor drive and the low-voltage battery conversion device
  • the control module is a digital controller or a microcomputer controller
  • the drive module is two electric power An electronic switch and two freewheeling diodes, the power electronic switch being connected in series across the windings of the switched reluctance motor, the two freewheeling diodes respectively being connected to the winding of the switched reluctance motor and one of the power electronics Switch in parallel
  • the DC-DC conversion module is a A power electronic switch and a diode, the power electronic switch and the diode being connected in series.
  • the conversion device of the present invention is six power electronic switches and six freewheeling diodes, each power electronic The switch and each of the freewheeling diodes are connected in series, and are arranged in parallel between the two poles of the high voltage energy storage module. In the adjacent two sets of parallel lines, the series order of the power electronic switch and the freewheeling diode is opposite; Each winding of the phase motor is taken out at a center point of the adjacent parallel line; the DC-DC conversion module is a power electronic switch and three diodes, and the diodes are connected in series with the windings, and are connected to the The collector of the power electronic switch.
  • the integrated switch reluctance motor drive and the low voltage battery charging conversion device of the present invention including a high voltage energy storage module, a drive module, a control module, a DC-DC conversion module, and a low voltage energy storage module, and integrated switch magnetic
  • resisting motor drive and low-voltage battery charging not only saves space of the device, but also drives power electronic devices and drive signal control circuits, realizing time-division multiplexing of devices such as large capacitors, inductors and heat sinks, and greatly reducing components.
  • the complexity of the cost and board layout makes the hardware structure more compact.
  • the high-efficiency intelligent battery charging is realized by the control module, and the timely replenishment of electric energy according to the state of the low-voltage battery in the low-voltage energy storage module is safe and reliable.
  • the high voltage energy storage module stores a high voltage battery pack
  • the low voltage energy storage module stores a low voltage battery pack
  • the drive module includes a body of a half-bridge inverter and a switched reluctance motor of a switched reluctance motor
  • the DC-DC converter module comprising a rectifying unit and a chopper unit connected to the rectifying unit, the semi-bridge of the switched reluctance motor
  • the inverter is composed of a power electronic switching device and a diode
  • the rectifying unit is composed of a diode
  • the chopper unit is composed of a power electronic switching device.
  • the energy of the high voltage battery can be converted into mechanical energy by the drive module.
  • the energy of the high-voltage battery transfers the high-voltage battery energy to the voltage battery through the drive module and the DC-DC converter.
  • Figure 1 is a block diagram showing the structure of a converter for driving a switched reluctance motor and charging a low voltage battery;
  • FIG. 2 is a circuit diagram of a conversion device for driving a single-phase integrated switched reluctance motor and charging a low-voltage battery;
  • Figure 3 is a circuit diagram of a three-phase integrated switched reluctance motor drive and a low voltage battery charging converter.
  • a conversion device for driving a switched reluctance motor and charging a low voltage battery comprising: a high voltage energy storage module, a driving module, a control module, a DC-DC conversion module, and a low voltage energy storage module, wherein a high-voltage energy storage module is connected to the driving module, the driving module is connected to a DC-DC conversion module, the DC-DC module is connected to the low-voltage energy storage module, the control module and the driving module are The DC-DC converter modules are connected separately.
  • the conversion device realizes multiplexing of two functions of the switched reluctance motor drive and the DC-DC converter charge.
  • the high-voltage energy storage module internally stores energy generated from a power grid or other power generating device, and is a large-capacity high-pressure energy storage device, and the high-voltage energy storage module is controlled by a battery management system.
  • the low voltage energy storage module stores low voltage electrical energy inside.
  • the DC-DC conversion module can charge the electrical energy of the high-voltage energy storage module to the electrical energy of the low-voltage energy storage module, where the high-voltage energy storage module includes a power electronic switch and a diode.
  • the control module controls the operation of the driving module and the DC-DC conversion module according to a preset program.
  • the driving module drives the operation of the switched reluctance motor, including a power electronic switching device and a diode, for receiving the command driving of the control unit, and the driving module part device also participates in the electric energy of the high-voltage energy storage module to the low-voltage energy storage module.
  • Energy transformation The DC-DC conversion module charges the power of the high-voltage energy storage module to the low-voltage energy storage module, and the controller controls the operation of the DC-DC conversion module to implement the high-voltage energy storage module to the low-voltage energy storage module Charging.
  • the high-voltage energy storage module acts as a power source, and the controller module can read relevant information from the high-voltage energy storage module.
  • the high-voltage energy storage module includes a high-voltage energy storage unit, and a high-voltage battery pack is stored therein;
  • the low-voltage energy storage module includes a low-voltage energy storage unit, and a low-voltage battery pack is stored therein.
  • the driving module includes a half bridge inverter of the switched reluctance motor and a body of the switched reluctance motor.
  • the DC-DC converter module includes a rectifying unit and a chopper unit connected to the rectifying unit.
  • the rectifying unit is a rectifier and includes a diode.
  • the chopper unit includes a switching device, a negative electrode of the diode of the rectifying unit is connected to a collector of the switching device, and an emission set of the switching device is connected to a positive electrode of the low voltage battery of the low voltage energy storage module.
  • the negative electrode of the low voltage battery is connected to the negative electrode of the high voltage battery.
  • the switching device here may be a triode or a relay. When the switching device here is a relay, the negative pole of the diode of the rectifying unit is connected to one end of the relay, and the other end of the relay is connected with the low voltage battery pack.
  • Example 2 The circuit of the single-phase integrated switched reluctance motor drive and the low-voltage battery converter is shown in Figure 2.
  • the high-voltage energy storage module includes a high-voltage battery pack
  • the driving module includes power electronic switching devices (Q1 and Q2) and semiconductor diodes (D1 and D2)
  • the control module includes a digital processor or a microcomputer processor.
  • the DC-DC conversion module includes a power electronic switching device (Q3) and a semiconductor diode (D3)
  • the low-voltage energy storage module includes a low-voltage battery pack.
  • the control module is a digital controller or a microcomputer controller
  • the driving module is two power electronic switches. (Q 1 and Q 2 ) and two freewheeling diodes (D 1 and D 2 ), the power electronic switch being connected in series across the windings of the switched reluctance motor (ie, the first winding A), the two continued The flow diodes D 1 and D 2 are respectively connected in parallel with the winding of the switched reluctance motor and one of the power electronic switches;
  • the DC-DC conversion module is a power electronic switch and a diode, and the power electronic switch and the The diodes are connected in series.
  • the anode of the high voltage battery pack is connected to the collector of the first switching device Q1, the emitter of the first switching device Q1 is connected to one end of the first winding A, and the other of the first winding A
  • One end is connected to the collector of the second switching device Q2, and is connected to the anode of the high voltage battery through the first freewheeling diode D1, wherein the anode of the first freewheeling diode D1 and the second switching device Q2 a collector connection, a cathode of the first freewheeling diode D1 is connected to a positive pole of the high voltage battery, an emitter Q2 of the second switching device is connected to a cathode of the high voltage battery; and the second freewheeling diode D2
  • the positive electrode is connected to the negative electrode of the high voltage battery, and the negative electrode of the second freewheeling diode D2 is connected to the emitter of the first switching device Q1.
  • the DC-DC conversion module includes a rectifying unit and a chopper unit connected to the rectifying unit.
  • the rectifying unit is a rectifier, that is, a third diode D3, and the anode of the third diode D3 is connected to the collector of the second switching device Q2.
  • the chopper unit includes at least a third switching device Q3, and a negative electrode of the third diode D3 is connected to a collector of the third switching device Q3, and an emitter of the third switching device Q3 and a positive electrode of the low voltage battery connection.
  • the negative electrode of the low voltage battery is connected to the negative electrode of the high voltage battery.
  • the control module controls whether the driving operation of the switched reluctance motor or the operation of the step-down DC-DC converter can be realized by controlling each switching device.
  • the third switching device Q3 When the third switching device Q3 is turned on, the opening and closing of the first switching device Q1 and the second switching device Q2 are used to control the operation of the switched reluctance motor.
  • the second switching device Q2 When the second switching device Q2 is turned on, the first switching device Q1 and the third switching device Q3 are combined to control the current of the smart charging of the battery.
  • the above-mentioned conversion device can realize the stepless speed regulation of the motor and the intelligent charging of the battery.
  • the high voltage energy storage module includes a high voltage battery pack, and the driving module includes a power electronic switching device (Q1-
  • the control module comprising a digital processor or a microcomputer processor, the DC-DC
  • the conversion module includes a power electronic switching device (Qz) and a semiconductor diode (D7-D9), the low voltage energy storage module including a low voltage battery pack. Each module corresponds to the device in Figure 3, respectively.
  • a circuit diagram of a three-phase integrated switched reluctance motor drive and a low voltage battery charge conversion device The entire system consists of a power electronic switching device and a power diode, capacitor, battery, motor, power electronic switching device driver board, and controller. The high voltage battery and capacitor are connected in parallel on the busbar.
  • the three power electronic switching device emitters and the negative poles of the three power diodes are respectively connected together to form a bridge arm, and both ends of the bridge arm are connected to the bus bar, and one ends of the three-phase windings are respectively connected to the centers of the bridge arms. point.
  • the collectors of the three power electronic switching devices and the positive poles of the three power diodes are each connected together to form a bridge arm, the two ends of which are connected to the bus bar, and the other ends of the three-phase windings are respectively connected to the center points of the bridge arms.
  • the other ends of the three-phase windings are each connected to the anode of the diode and connected to the negative pole of the diode connected to the three-phase winding to form a connection point which is connected to the collector of the switching device Qz.
  • the power electronic switching device Qz has an emitter connected to the anode of the low voltage battery, and the cathode of the low voltage battery is connected to the anode of the high voltage battery.
  • the drive board and controller form a controller module that provides control signals for the power electronic switching device while also receiving signals such as current, voltage, rotor position, and temperature throughout the system.
  • the controller module is connected to the vehicle controller using CAN communication, and the torque signal and the charging signal are obtained from the vehicle controller.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Control Of Electric Motors In General (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A conversion device integrated with switched reluctance motor drive and low-voltage battery charging, comprising a high-voltage energy storage module, a drive module connected to the high-voltage energy storage module, and a control module connected to the drive module, and also comprising a DC-DC conversion module connected to the control module and the drive module, and a low-voltage energy storage module which stores low-voltage electric energy and supplies power to a low-voltage device. The control module controls the drive module and the low-voltage energy storage module to operate according to a preset program. The drive module drives a switched reluctance motor to operate and is used for receiving an instruction from the control unit to drive the DC-DC conversion module and charging the electric energy of the high-voltage energy storage module to the low-voltage energy storage module. The conversion device is integrated with the functions of switched reluctance motor drive and low-voltage battery charging simultaneously, thereby being able to not only save the space of a device, but also achieve the time-sharing multiplexing of the device, and thus the costs of elements and the wiring complexity of a circuit board are greatly reduced, so that the hardware structure thereof is more compact.

Description

一种集成开关磁阻电机驱动与低压电池充电的变换装置 技术领域  Conversion device for integrated switched reluctance motor drive and low voltage battery charging
[0001] 本发明涉及一种开关磁阻电机驱动系统， 具体地说是一种集成了开关磁阻电机驱 动与低压电池充电变换装置。  [0001] The present invention relates to a switched reluctance motor drive system, and more particularly to an integrated switch reluctance motor drive and a low voltage battery charge change device.
背景技术 Background technique
[0002] 开关磁阻电机是一种新型调速电机， 调速系统兼具直流、 交流两类调速系统的优 点， 是继变频调速系统、 无刷直流电动机调速系统的最新一代无极调速系统。 现有技术中开 关磁阻电机的驱动电路， 主要包括直流电源、 直流电容、 N相电机绕组、 上部的开关器件， 下部的开关器件， 上部的续流二极管以及下部的续流二极管。 上述的直流电容主要作用是给 整流电路或电池提供缓冲， 稳定直流母线电压。 N相电机绕组通过开关器件和续流二极管并 联到直流母线上。 上述的上部开关器件和下部的续流二极管连接到相绕组一端， 上述的下部 开关器件和下部的续流二极管连接到相绕组的另一端。  [0002] Switched reluctance motor is a new type of speed-regulating motor. The speed-regulating system has the advantages of DC and AC two-speed system. It is the latest generation of infinitely adjustable after the variable frequency speed control system and brushless DC motor speed control system. Speed system. The driving circuit of the prior art switch reluctance motor mainly includes a DC power source, a DC capacitor, an N-phase motor winding, an upper switching device, a lower switching device, an upper freewheeling diode, and a lower freewheeling diode. The above-mentioned DC capacitor mainly serves to buffer the rectifier circuit or the battery and stabilize the DC bus voltage. The N-phase motor winding is connected to the DC bus via a switching device and a freewheeling diode. The upper switching device and the lower freewheeling diode are connected to one end of the phase winding, and the lower switching device and the lower freewheeling diode are connected to the other end of the phase winding.
[0003] 上述的开关磁阻电机驱动电路广泛应用在家庭和工业上， 但是此电路只满足了驱动 电机的需求， 对于使用日益频繁的电动设备 （如机器人、 电动汽车、 电动除草机等）， 还需 要对储能电源进行充电。 上述开关磁阻电机驱动电路， 无法满足充电的需要。 为此， 中国专 利文献 CN201956913U中公开了一种集成开关磁阻电机驱动和充电变换装置， 包括储能模块 和与所述储能模块串联的驱动模块， 还包括整流模块， 与电网连接， 且与所述驱动模块连 接； 控制模块， 分别与所述储能模块、 所述驱动模块变流模块连接， 并根据预设程序来控制 整流模块的整流工作， 并控制整流模块对所述储能模块的充电， 以及控制整流模块和储能模 块对外供电。 在该技术方案中， 将充电模块和开关磁阻电机的驱动集成到一起， 实现了对储 能设备的充电。 但是， 该技术方案只适用于交流电源， 特别是接入交流电网充电。 根据接入 电网的设备都要符合相应的功率因数要求， 该方案重点放在高压电池的充电控制和功率因数 控制。  [0003] The above-mentioned switched reluctance motor drive circuit is widely used in homes and industries, but this circuit only satisfies the demand of the drive motor, and is used for increasingly frequent electric devices (such as robots, electric cars, electric weeders, etc.). It is also necessary to charge the energy storage power supply. The above-mentioned switched reluctance motor drive circuit cannot meet the needs of charging. To this end, Chinese Patent Publication No. CN201956913U discloses an integrated switched reluctance motor drive and charge conversion device, comprising an energy storage module and a drive module connected in series with the energy storage module, and a rectifier module connected to the power grid, and The driving module is connected to the control module, and is respectively connected to the energy storage module and the driving module current conversion module, and controls the rectifying operation of the rectifier module according to a preset program, and controls the rectifier module to the energy storage module. Charging, and controlling the rectifier module and the energy storage module to supply power to the outside. In this technical solution, the charging module and the driving of the switched reluctance motor are integrated to realize charging of the energy storage device. However, this technical solution is only applicable to AC power, especially to AC grid charging. According to the corresponding power factor requirements, the equipment connected to the grid should focus on the charging control and power factor control of the high voltage battery.
[0004] 对于电动汽车， 车载充电器能使电动汽车从电网的插头取电， 对电动汽车的蓄电池 进行充电。 一般的电动汽车上需要多个电机驱动系统来满足不同负载 (如轮胎、 风叶等)的要 求。 目前， 电动汽车内采用双电源系统， 一个是提供给高压驱动电机工作的高压蓄电池， 另 一个是提供给车体内一些低压设备的低压蓄电池。 由于低压电池容量较低， 一般采用高压电 池给低压电池补充电能的方式， 因此在电动汽车内需要单独设置一个将高压电转换为低压电 的设备， 包括 DC-DC 变换器以及充电的驱动设备等等电气元件。 这样， 电动汽车内部的线 路以及电气设备就变得复杂。 [0004] For an electric vehicle, the on-board charger enables the electric vehicle to take power from the plug of the electric grid to charge the battery of the electric vehicle. A general motor vehicle requires multiple motor drive systems to meet the requirements of different loads (such as tires, blades, etc.). At present, electric vehicles use dual power systems, one is a high-voltage battery that is supplied to the high-voltage drive motor, and the other is a low-voltage battery that is supplied to some low-voltage equipment in the vehicle body. Since the low-voltage battery has a low capacity, a high-voltage battery is generally used to supplement the low-voltage battery. Therefore, a device for converting high-voltage power to low-voltage power, including a DC-DC converter and a charging driving device, needs to be separately provided in the electric vehicle. And other electrical components. In this way, the line inside the electric car Roads and electrical equipment are complicated.
发明内容 Summary of the invention
[0005] 本发明所要解决的技术问题是现有技术中开关磁阻电机驱动与直流电源低压电池充 电使用单独设备、 浪费设备与空间的技术问题， 进而提供集成了开关磁阻电机驱动与直流电 源低压电池充电的变换装置。  [0005] The technical problem to be solved by the present invention is that the prior art switch reluctance motor drive and the DC power supply low voltage battery are charged with the use of separate devices, waste equipment and space technical problems, and thus provide integrated switched reluctance motor drive and DC power supply. A transducer for charging low voltage batteries.
[0006] 为了解决上述技术问题， 本发明提供一种集成开关磁阻电机驱动与低压电池充电的 变换装置包括高压储能模块和与所述高压储能模块连接的驱动模块， 以及与所述驱动模块连 接的控制模块， 所述驱动模块驱动开关磁阻电机的运行， 还包括低压储能模块和与所述低压 储能模块连接的 DC-DC变换模块， 所述 DC-DC变换模块与所述控制模块和所述驱动模块 连接， 所述 DC-DC 变换模块用于将高压储能模块的电能向所述低压储能模块充电， 所述控 制模块控制所述驱动模块和所述 DC-DC变换模块工作。  In order to solve the above technical problem, the present invention provides a conversion device for driving an integrated switched reluctance motor and charging a low voltage battery, comprising: a high voltage energy storage module and a driving module connected to the high voltage energy storage module, and the driving a module connected to the control module, the driving module driving the operation of the switched reluctance motor, further comprising a low voltage energy storage module and a DC-DC conversion module connected to the low voltage energy storage module, the DC-DC conversion module and the The control module is connected to the driving module, the DC-DC conversion module is configured to charge the power of the high-voltage energy storage module to the low-voltage energy storage module, and the control module controls the driving module and the DC-DC conversion The module works.
[0007] 本发明所述的变换装置， 所述驱动模块包括至少两个电力电子开关和至少两个续流 二极管， 用于接收所述控制模块的指令驱动； 所述 DC-DC变换模块包括一个电力电子开关 和一个二极管。  [0007] The conversion device of the present invention, the driving module includes at least two power electronic switches and at least two freewheeling diodes for receiving instruction driving of the control module; the DC-DC conversion module includes a Power electronic switch and a diode.
[0008] 本发明所述的变换装置， 所述驱动模块包括开关磁阻电机的半桥逆变器和开关磁阻 电机的本体。  According to the transforming device of the present invention, the driving module includes a half bridge inverter of the switched reluctance motor and a body of the switched reluctance motor.
[0009] 本发明所述的变换装置， 所述 DC-DC变换模块包括整流单元和与所述整流单元连接 的斩波单元。  [0009] The conversion device according to the present invention, the DC-DC conversion module includes a rectification unit and a chopper unit connected to the rectification unit.
[0010] 本发明所述的变换装置， 所述整流单元为整流器， 包括一个二极管。  [0010] In the conversion device of the present invention, the rectifying unit is a rectifier and includes a diode.
[0011] 本发明所述的变换装置， 所述斩波单元包括一个开关器件， 所述整流单元的二极管的 负极与所述开关器件的集电极连接， 所述开关器件的发射集与所述低压储能模块的低压电池 的正极连接， 所述低压电池的负极与所述高压电池的负极连接。  [0011] The conversion device according to the present invention, the chopper unit includes a switching device, a negative electrode of a diode of the rectifying unit is connected to a collector of the switching device, and an emission set of the switching device and the low voltage A positive electrode of the low voltage battery of the energy storage module is connected, and a negative electrode of the low voltage battery is connected to a negative electrode of the high voltage battery.
[0012] 本发明所述的变换装置， 所述开关器件为三极管或继电器， 当所述开关器件为继电 器时， 整流单元的二极管的负极跟继电器的一端连接， 继电器的另一端跟低压电池组连接。  [0012] In the conversion device of the present invention, the switching device is a triode or a relay. When the switching device is a relay, the negative pole of the diode of the rectifying unit is connected to one end of the relay, and the other end of the relay is connected to the low voltage battery pack. .
[0013] 本发明所述的变换装置， 所述变换装置为单相集成开关磁阻电机驱动与低压电池的 变换装置或三相集成开关磁阻电机驱动与低压电池变换装置。  [0013] The conversion device according to the present invention is a single-phase integrated switched reluctance motor drive and low-voltage battery conversion device or a three-phase integrated switched reluctance motor drive and low-voltage battery conversion device.
[0014] 本发明所述的变换装置， 所述单相集成开关磁阻电机驱动与低压电池的变换装置 中， 所述控制模块为数字控制器或微机控制器， 所述驱动模块为两个电力电子开关和两个续 流二极管， 所述电力电子开关串联在开关磁阻电机的绕组的两端， 所述两个续流二极管分别 与所述开关磁阻电机的绕组和一个所述的电力电子开关并联； 所述 DC-DC 变换模块为一个 电力电子开关和一个二极管， 所述电力电子开关和所述二极管串联。 [0014] The conversion device of the present invention, the single-phase integrated switched reluctance motor drive and the low-voltage battery conversion device, the control module is a digital controller or a microcomputer controller, and the drive module is two electric power An electronic switch and two freewheeling diodes, the power electronic switch being connected in series across the windings of the switched reluctance motor, the two freewheeling diodes respectively being connected to the winding of the switched reluctance motor and one of the power electronics Switch in parallel; the DC-DC conversion module is a A power electronic switch and a diode, the power electronic switch and the diode being connected in series.
[0015] 本发明所述的变换装置， 所述三相集成开关磁阻电机驱动与低压电池的变换装置 中， 所述驱动模块为六个电力电子开关和六个续流二极管， 每个电力电子开关和每个续流 二极管串联后， 并联设置在所述高压储能模块的两极之间， 相邻的两组并联线路中， 所述电 力电子开关和续流二极管的串联顺序相反； 所述三相电机的每个绕组在相邻的所述并联线路 的中心点引出； 所述 DC-DC 变换模块为一个电力电子开关和三个二极管， 所述二极管分别 与所述绕组串联后， 连接到所述电力电子开关的集电极。  [0015] The conversion device of the present invention, the three-phase integrated switched reluctance motor drive and the low-voltage battery conversion device, the drive module is six power electronic switches and six freewheeling diodes, each power electronic The switch and each of the freewheeling diodes are connected in series, and are arranged in parallel between the two poles of the high voltage energy storage module. In the adjacent two sets of parallel lines, the series order of the power electronic switch and the freewheeling diode is opposite; Each winding of the phase motor is taken out at a center point of the adjacent parallel line; the DC-DC conversion module is a power electronic switch and three diodes, and the diodes are connected in series with the windings, and are connected to the The collector of the power electronic switch.
[0016] 本发明的上述技术方案相比现有技术具有以下优点： [0016] The above technical solution of the present invention has the following advantages over the prior art:
( 1 ) 本发明所述的集成开关磁阻电机驱动与低压电池充电的变换装置， 包括高压储能模 块、 驱动模块、 控制模块、 DC-DC 变换模块和低压储能模块， 同时集成了开关磁阻电机驱 动与低压电池充电的功能， 不仅可以节省装置的空间， 同时驱动电力电子器件、 驱动信号控 制电路， 实现了大电容、 电感和散热装置等器件的分时复用， 大大减低了元件的成本和电路 板布线的复杂性， 使得其硬件结构更紧凑。 此外， 通过控制模块实现了高效率的智能电池充 电， 根据低压储能模块中低压电池的状态实现及时补充电能， 安全可靠。  (1) The integrated switch reluctance motor drive and the low voltage battery charging conversion device of the present invention, including a high voltage energy storage module, a drive module, a control module, a DC-DC conversion module, and a low voltage energy storage module, and integrated switch magnetic The function of resisting motor drive and low-voltage battery charging not only saves space of the device, but also drives power electronic devices and drive signal control circuits, realizing time-division multiplexing of devices such as large capacitors, inductors and heat sinks, and greatly reducing components. The complexity of the cost and board layout makes the hardware structure more compact. In addition, the high-efficiency intelligent battery charging is realized by the control module, and the timely replenishment of electric energy according to the state of the low-voltage battery in the low-voltage energy storage module is safe and reliable.
[0017] (2) 本发明所述的集成开关磁阻电机驱动与低压电池充电的变换装置， 高压储能模 块存储有高压电池组， 低压储能模块存储有低压电池组， 所述驱动模块包括开关磁阻电机的 半桥逆变器和开关磁阻电机的本体， 所述 DC-DC变换器模块包括整流单元和与所述整流单 元连接的斩波单元， 所述的开关磁阻电机半桥逆变器由电力电子开关器件和二极管组成， 所 述的整流单元由一个二极管组成， 所述的斩波单元由一个电力电子开关器件组成。 该变换装 置在驱动模式下， 高压电池的能量能通过驱动模块， 把电能转化为机械能。 在低压电池充电 模式下， 高压电池的能量通过驱动模块和 DC-DC 变换器， 把高压电池能量转移到电压电 池。 驱动模块的部分器件同时参加两种模式的能量变换。 [0017] (2) The integrated switch reluctance motor drive and the low voltage battery charging conversion device of the present invention, the high voltage energy storage module stores a high voltage battery pack, and the low voltage energy storage module stores a low voltage battery pack, wherein the drive module includes a body of a half-bridge inverter and a switched reluctance motor of a switched reluctance motor, the DC-DC converter module comprising a rectifying unit and a chopper unit connected to the rectifying unit, the semi-bridge of the switched reluctance motor The inverter is composed of a power electronic switching device and a diode, the rectifying unit is composed of a diode, and the chopper unit is composed of a power electronic switching device. In the drive mode, the energy of the high voltage battery can be converted into mechanical energy by the drive module. In the low-voltage battery charging mode, the energy of the high-voltage battery transfers the high-voltage battery energy to the voltage battery through the drive module and the DC-DC converter. Some devices of the drive module participate in the energy conversion of the two modes simultaneously.
附图说明 DRAWINGS
[0018] 为了使本发明的内容更容易被清楚的理解， 下面结合附图， 对本发明作进一步详细 的说明， 其中，  [0018] In order to make the content of the present invention easier to understand, the present invention will be further described in detail below with reference to the accompanying drawings, in which
图 1 为集成开关磁阻电机驱动与低压电池充电的变换装置的结构框图； Figure 1 is a block diagram showing the structure of a converter for driving a switched reluctance motor and charging a low voltage battery;
图 2 为单相集成开关磁阻电机驱动与低压电池充电的变换装置的电路示意图； 2 is a circuit diagram of a conversion device for driving a single-phase integrated switched reluctance motor and charging a low-voltage battery;
图 3为三相集成开关磁阻电机驱动与低压电池充电的变换装置的电路示意图。 Figure 3 is a circuit diagram of a three-phase integrated switched reluctance motor drive and a low voltage battery charging converter.
具体实施方式 detailed description
[0019] 下面结合实施例对本发明作进一步的描述， 但应当说明的是， 这些实施例仅用于说 明本发明的方法， 而并不能将本发明的范围局限于此。 [0019] The present invention will be further described below in conjunction with the embodiments, but it should be noted that these embodiments are only used to say The method of the present invention is not limited to the scope of the present invention.
[0020] 下面将通过具体实施例对本发明作进一步的描述。  [0020] The invention will now be further described by way of specific examples.
[0021] 实施例 1 : [0021] Example 1 :
一种集成开关磁阻电机驱动与低压电池充电的变换装置， 如图 1 所示， 包括： 高压储能模 块、 驱动模块、 控制模块、 DC-DC 变换模块以及低压储能模块， 其中， 所述高压储能模块 和所述驱动模块连接， 所述驱动模块与 DC-DC变换模块连接， 所述 DC-DC模块与所述低 压储能模块连接， 所述控制模块与所述驱动模块和所述 DC-DC变换模块分别连接。 该变换 装置实现了开关磁阻电机驱动和 DC-DC变换器充电的两种功能的复用。 A conversion device for driving a switched reluctance motor and charging a low voltage battery, as shown in FIG. 1 , comprising: a high voltage energy storage module, a driving module, a control module, a DC-DC conversion module, and a low voltage energy storage module, wherein a high-voltage energy storage module is connected to the driving module, the driving module is connected to a DC-DC conversion module, the DC-DC module is connected to the low-voltage energy storage module, the control module and the driving module are The DC-DC converter modules are connected separately. The conversion device realizes multiplexing of two functions of the switched reluctance motor drive and the DC-DC converter charge.
[0022] 所述高压储能模块内部存储有从电网或其他发电设备产生的能量， 是一个大容量的 高压储能器， 所述高压储能模块受电池管理系统的控制。 所述低压储能模块内部存储有低压 电能。 所述 DC-DC 变换模块， 可以将所述高压储能模块的电能向所述低压储能模块的电能 充电， 此处该高压储能模块包括一个电力电子开关和一个二极管。 所述控制模块根据预设程 序控制所述驱动模块和所述 DC-DC 变换模块工作。 所述驱动模块驱动开关磁阻电机的运 行， 包括电力电子开关器件和二极管， 用于接收所述控制单元的指令驱动， 驱动模块部分器 件也参加高压储能模块的电能向所述低压储能模块的能量变换。 所述 DC-DC 变换模块， 将 高压储能模块的电能向所述低压储能模块充电， 所述控制器控制所述 DC-DC 变换模块动 作， 实现高压储能模块向所述低压储能模块充电。 高压储能模块作为电源， 控制器模块可以 从高压储能模块读取相关信息。 [0022] The high-voltage energy storage module internally stores energy generated from a power grid or other power generating device, and is a large-capacity high-pressure energy storage device, and the high-voltage energy storage module is controlled by a battery management system. The low voltage energy storage module stores low voltage electrical energy inside. The DC-DC conversion module can charge the electrical energy of the high-voltage energy storage module to the electrical energy of the low-voltage energy storage module, where the high-voltage energy storage module includes a power electronic switch and a diode. The control module controls the operation of the driving module and the DC-DC conversion module according to a preset program. The driving module drives the operation of the switched reluctance motor, including a power electronic switching device and a diode, for receiving the command driving of the control unit, and the driving module part device also participates in the electric energy of the high-voltage energy storage module to the low-voltage energy storage module. Energy transformation. The DC-DC conversion module charges the power of the high-voltage energy storage module to the low-voltage energy storage module, and the controller controls the operation of the DC-DC conversion module to implement the high-voltage energy storage module to the low-voltage energy storage module Charging. The high-voltage energy storage module acts as a power source, and the controller module can read relevant information from the high-voltage energy storage module.
[0023] 在本实施例中， 所述高压储能模块包括高压储能单元， 其内部存储有高压电池组； 所述低压储能模块包括低压储能单元， 其内部存储有低压电池组。  [0023] In this embodiment, the high-voltage energy storage module includes a high-voltage energy storage unit, and a high-voltage battery pack is stored therein; the low-voltage energy storage module includes a low-voltage energy storage unit, and a low-voltage battery pack is stored therein.
[0024] 进一步的， 所述驱动模块包括开关磁阻电机的半桥逆变器和开关磁阻电机的本体。 所述 DC-DC变换器模块包括整流单元和与所述整流单元连接的斩波单元。 所述整流单元为 整流器， 包括一个二极管。 所述斩波单元包括一个开关器件， 所述整流单元的二极管的负极 与所述开关器件的集电极连接， 所述开关器件的发射集与所述低压储能模块的低压电池的正 极连接， 所述低压电池的负极与所述高压电池的负极连接。 此处的所述开关器件为可以为三 极管或继电器， 当此处的开关器件为继电器时， 整流单元的二极管的负极跟继电器的一端连 接， 继电器的另一端跟低压电池组连接。  [0024] Further, the driving module includes a half bridge inverter of the switched reluctance motor and a body of the switched reluctance motor. The DC-DC converter module includes a rectifying unit and a chopper unit connected to the rectifying unit. The rectifying unit is a rectifier and includes a diode. The chopper unit includes a switching device, a negative electrode of the diode of the rectifying unit is connected to a collector of the switching device, and an emission set of the switching device is connected to a positive electrode of the low voltage battery of the low voltage energy storage module. The negative electrode of the low voltage battery is connected to the negative electrode of the high voltage battery. The switching device here may be a triode or a relay. When the switching device here is a relay, the negative pole of the diode of the rectifying unit is connected to one end of the relay, and the other end of the relay is connected with the low voltage battery pack.
[0025] 下面分别给出单相集成开关磁阻电机驱动与低压电池变换装置的电路和三相集成开 关磁阻电机驱动与低压电池变换装置的电路。  [0025] The circuits of the single-phase integrated switched reluctance motor drive and low-voltage battery converter and the three-phase integrated switch reluctance motor drive and low-voltage battery converter are respectively shown below.
[0026] 实施例 2: 单相集成开关磁阻电机驱动与低压电池变换装置的电路， 如图 2所示。 Example 2: The circuit of the single-phase integrated switched reluctance motor drive and the low-voltage battery converter is shown in Figure 2.
[0027] 所述高压储能模块包括一个高压电池组， 所述驱动模块包括电力电子开关器件 （Q1 和 Q2) 和半导体二极管 （D1 和 D2)， 所述控制模块包括数字处理器或微机处理器， 所述 DC-DC 变换模块包括电力电子开关器件 （Q3 ) 和半导体二极管 （D3 )， 所述低压储能模块 包括一个低压电池组。 各个模块分别与图 2中的器件相对应。  [0027] The high-voltage energy storage module includes a high-voltage battery pack, and the driving module includes power electronic switching devices (Q1 and Q2) and semiconductor diodes (D1 and D2), and the control module includes a digital processor or a microcomputer processor. The DC-DC conversion module includes a power electronic switching device (Q3) and a semiconductor diode (D3), and the low-voltage energy storage module includes a low-voltage battery pack. Each module corresponds to the device in Figure 2, respectively.
[0028] 在本实施例中， 所述单相集成开关磁阻电机驱动与低压电池的变换装置中， 所述控 制模块为数字控制器或微机控制器， 所述驱动模块为两个电力电子开关 （Q 1和 Q 2 ) 和两 个续流二极管 （D 1和 D 2 )， 所述电力电子开关串联在开关磁阻电机的绕组 （即第一绕组 A) 的两端， 所述两个续流二极管 D 1和 D 2分别与所述开关磁阻电机的绕组和一个所述的 电力电子开关并联； 所述 DC-DC 变换模块为一个电力电子开关和一个二极管， 所述电力电 子开关和所述二极管串联。 具体地， 所述高压电池组的正极与所述第一开关器件 Q1 的集电 极连接， 所述第一开关器件 Q1 的发射极与第一绕组 A的一端连接， 所述第一绕组 A的另 一端与所述第二开关器件 Q2的集电极连接， 且通过第一续流二极管 D1 与所述高压电池正 极连接， 其中所述第一续流二极管 D1 的正极与所述第二开关器件 Q2 的集电极连接， 所述 第一续流二极管 D1 的负极与所述高压电池的正极连接， 所述第二开关器件的发射极 Q2与 所述高压电池的负极连接； 所述第二续流二极管 D2 的正极与高压电池的负极连接， 所述第 二续流二极管 D2负极与第一开关器件 Q1的发射极连接。 所述 DC-DC变换模块包括整流单 元和与所述整流单元连接的斩波单元。 所述整流单元为整流器， 即为第三二极管 D3， 所述 的第三二极管 D3 的正极与第二开关器件 Q2 的集电极连接。 所述斩波单元至少包括第三开 关器件 Q3， 所述的第三二极管 D3的负极与第三开关器件 Q3的集电极连接， 所述第三开关 器件 Q3 的发射极与低压电池的正极连接。 所述的低压电池的负极跟高压电池的负极连接。 所述控制模块控制通过控制各开关器件可以实现开关磁阻电机的驱动运行或降压 DC-DC 变 换器的运行。 当第三开关器件 Q3打开时， 第一开关器件 Q1和第二开关器件 Q2的开合用 来控制开关磁阻电机的运行。 当第二开关器件 Q2打开时， 第一开关器件 Q1 和第三开关器 件 Q3 组合控制电池智能充电的电流。 上述的变换装置能实现电机的无极调速和电池的智 能充电。  [0028] In this embodiment, in the single-phase integrated switched reluctance motor driving and low-voltage battery conversion device, the control module is a digital controller or a microcomputer controller, and the driving module is two power electronic switches. (Q 1 and Q 2 ) and two freewheeling diodes (D 1 and D 2 ), the power electronic switch being connected in series across the windings of the switched reluctance motor (ie, the first winding A), the two continued The flow diodes D 1 and D 2 are respectively connected in parallel with the winding of the switched reluctance motor and one of the power electronic switches; the DC-DC conversion module is a power electronic switch and a diode, and the power electronic switch and the The diodes are connected in series. Specifically, the anode of the high voltage battery pack is connected to the collector of the first switching device Q1, the emitter of the first switching device Q1 is connected to one end of the first winding A, and the other of the first winding A One end is connected to the collector of the second switching device Q2, and is connected to the anode of the high voltage battery through the first freewheeling diode D1, wherein the anode of the first freewheeling diode D1 and the second switching device Q2 a collector connection, a cathode of the first freewheeling diode D1 is connected to a positive pole of the high voltage battery, an emitter Q2 of the second switching device is connected to a cathode of the high voltage battery; and the second freewheeling diode D2 The positive electrode is connected to the negative electrode of the high voltage battery, and the negative electrode of the second freewheeling diode D2 is connected to the emitter of the first switching device Q1. The DC-DC conversion module includes a rectifying unit and a chopper unit connected to the rectifying unit. The rectifying unit is a rectifier, that is, a third diode D3, and the anode of the third diode D3 is connected to the collector of the second switching device Q2. The chopper unit includes at least a third switching device Q3, and a negative electrode of the third diode D3 is connected to a collector of the third switching device Q3, and an emitter of the third switching device Q3 and a positive electrode of the low voltage battery connection. The negative electrode of the low voltage battery is connected to the negative electrode of the high voltage battery. The control module controls whether the driving operation of the switched reluctance motor or the operation of the step-down DC-DC converter can be realized by controlling each switching device. When the third switching device Q3 is turned on, the opening and closing of the first switching device Q1 and the second switching device Q2 are used to control the operation of the switched reluctance motor. When the second switching device Q2 is turned on, the first switching device Q1 and the third switching device Q3 are combined to control the current of the smart charging of the battery. The above-mentioned conversion device can realize the stepless speed regulation of the motor and the intelligent charging of the battery.
[0029] 实施例 3:  Example 3:
三相集成开关磁阻电机驱动与低压电池变换装置的电路， 如图 3 所示。 The circuit of the three-phase integrated switched reluctance motor drive and the low-voltage battery converter is shown in Figure 3.
[0030] 所述高压储能模块包括一个高压电池组， 所述驱动模块包括电力电子开关器件 （Q1- [0030] The high voltage energy storage module includes a high voltage battery pack, and the driving module includes a power electronic switching device (Q1-
Q6) 和半导体二极管 （D1-D6), 所述控制模块包括数字处理器或微机处理器， 所述 DC-DC 变换模块包括电力电子开关器件 （Qz) 和半导体二极管 （D7-D9 ), 所述低压储能模块包括 一个低压电池组。 各个模块分别与图 3中的器件相对应。 Q6) and a semiconductor diode (D1-D6), the control module comprising a digital processor or a microcomputer processor, the DC-DC The conversion module includes a power electronic switching device (Qz) and a semiconductor diode (D7-D9), the low voltage energy storage module including a low voltage battery pack. Each module corresponds to the device in Figure 3, respectively.
[0031] 三相集成开关磁阻电机驱动与低压电池充电变换装置的电路示意图。 整个系统有电 力电子开关器件和功率二极管、 电容、 蓄电池、 电机、 电力电子开关器件驱动板以及控制器 组成。 高压蓄电池和电容并联在母线上。  [0031] A circuit diagram of a three-phase integrated switched reluctance motor drive and a low voltage battery charge conversion device. The entire system consists of a power electronic switching device and a power diode, capacitor, battery, motor, power electronic switching device driver board, and controller. The high voltage battery and capacitor are connected in parallel on the busbar.
[0032] 三个电力电子开关器件发射极和三个功率二极管的负极各自连接在一起组成桥臂， 同时桥臂的两端连接到母线上， 三相绕组的一端各自连接到这些桥臂的中心点。 三个电力电 子开关器件集电极和三个功率二极管的正极各自连接在一起组成桥臂， 桥臂的两端连接到母 线上， 三相绕组的另一端各自连接到这些桥臂的中心点。 三相绕组的另一端各自连接二极管 的正极， 且跟三相绕组连接的二极管负极连接在一起， 形成一个连接点， 这个连接点跟开关 器件 Qz 的集电极相连。 电力电子开关器件 Qz 的发射极跟低压电池正极连接， 且低压电池 的负极跟高压电池的正极连接。  [0032] The three power electronic switching device emitters and the negative poles of the three power diodes are respectively connected together to form a bridge arm, and both ends of the bridge arm are connected to the bus bar, and one ends of the three-phase windings are respectively connected to the centers of the bridge arms. point. The collectors of the three power electronic switching devices and the positive poles of the three power diodes are each connected together to form a bridge arm, the two ends of which are connected to the bus bar, and the other ends of the three-phase windings are respectively connected to the center points of the bridge arms. The other ends of the three-phase windings are each connected to the anode of the diode and connected to the negative pole of the diode connected to the three-phase winding to form a connection point which is connected to the collector of the switching device Qz. The power electronic switching device Qz has an emitter connected to the anode of the low voltage battery, and the cathode of the low voltage battery is connected to the anode of the high voltage battery.
[0033] 驱动板和控制器组成控制器模块， 它提供电力电子开关器件的控制信号， 同时它也 接收整个系统的电流、 电压、 转子位置和温度等信号。 控制器模块跟整车控制器使用 CAN 通信连接， 转矩信号、 充电信号从整车控制器获得。  [0033] The drive board and controller form a controller module that provides control signals for the power electronic switching device while also receiving signals such as current, voltage, rotor position, and temperature throughout the system. The controller module is connected to the vehicle controller using CAN communication, and the torque signal and the charging signal are obtained from the vehicle controller.
[0034] 显然， 上述实施例仅仅是为清楚地说明所作的举例， 而并非对实施方式的限定。 对 于所属领域的普通技术人员来说， 在上述说明的基础上还可以做出其它不同形式的变化或变 动。 这里无需也无法对所有的实施方式予以穷举。 而由此所引伸出的显而易见的变化或变动 仍处于本发明创造的保护范围之中。  [0034] It is to be understood that the above-described embodiments are merely illustrative of the embodiments and are not intended to limit the embodiments. Other variations or variations of the various forms may be made by those skilled in the art based on the above description. There is no need and no way to exhaust all of the implementations. Obvious changes or variations resulting therefrom are still within the scope of the invention.

Claims

WO 2014/026460 权 要 求 书 PCT/CN2012/087909 WO 2014/026460 Claim PCT/CN2012/087909
1. 一种集成开关磁阻电机驱动与低压电池充电的变换装置， 包括高压储能模块和与所述高 压储能模块连接的驱动模块， 以及与所述驱动模块连接的控制模块， 所述驱动模块驱动开关 磁阻电机的运行， 其特征在于， 还包括低压储能模块和与所述低压储能模块连接的 DC-DC 变换模块， 所述 DC-DC变换模块与所述控制模块和所述驱动模块连接， 所述 DC-DC变换 模块用于将高压储能模块的电能向所述低压储能模块充电， 所述控制模块控制所述驱动模块 和所述 DC-DC变换模块工作。 A conversion device for driving a switched reluctance motor and charging a low voltage battery, comprising a high voltage energy storage module and a drive module connected to the high voltage energy storage module, and a control module connected to the drive module, the drive The operation of the module-driven switched reluctance motor is characterized by further comprising a low-voltage energy storage module and a DC-DC conversion module connected to the low-voltage energy storage module, the DC-DC conversion module and the control module and the The driving module is connected, the DC-DC conversion module is configured to charge the high-voltage energy storage module to the low-voltage energy storage module, and the control module controls the driving module and the DC-DC conversion module to work.
2. 根据权利要求 1 所述的变换装置， 其特征在于： 所述驱动模块包括至少两个电力电子开 关和至少两个续流二极管， 用于接收所述控制模块的指令驱动； 所述 DC-DC 变换模块包括 一个电力电子开关和一个二极管。  2. The conversion device according to claim 1, wherein: the driving module comprises at least two power electronic switches and at least two freewheeling diodes for receiving command driving of the control module; The DC conversion module includes a power electronic switch and a diode.
3. 根据权利要求 1 或 2所述的变换装置， 其特征在于： 所述驱动模块包括开关磁阻电机的 半桥逆变器和开关磁阻电机的本体。  The conversion device according to claim 1 or 2, wherein the driving module comprises a half bridge inverter of the switched reluctance motor and a body of the switched reluctance motor.
4. 根据权利要求 1-3中任一项所述的变换装置， 其特征在于： 所述 DC-DC变换模块包括整 流单元和与所述整流单元连接的斩波单元。  The conversion device according to any one of claims 1 to 3, wherein the DC-DC conversion module includes a rectification unit and a chopper unit connected to the rectification unit.
5. 根据权利要求 4所述的变换装置， 其特征在于： 所述整流单元为整流器， 包括一个二极 管。  The conversion device according to claim 4, wherein the rectifying unit is a rectifier and includes a diode.
6. 根据权利要求 4或 5 所述的变换装置， 其特征在于： 所述斩波单元包括一个开关器件， 所述整流单元的二极管的负极与所述开关器件的集电极连接， 所述开关器件的发射集与所述 低压储能模块的低压电池的正极连接， 所述低压电池的负极与所述高压电池的负极连接。 The conversion device according to claim 4 or 5, wherein: the chopper unit comprises a switching device, and a negative electrode of a diode of the rectifying unit is connected to a collector of the switching device, the switching device The emission set is connected to the positive electrode of the low voltage battery of the low voltage energy storage module, and the negative electrode of the low voltage battery is connected to the negative electrode of the high voltage battery.
7. 根据权利要求 6 所述的变换装置， 其特征在于， 所述开关器件为三极管或继电器， 当所 述开关器件为继电器时， 整流单元的二极管的负极跟继电器的一端连接， 继电器的另一端跟 低压电池组连接。 The conversion device according to claim 6, wherein the switching device is a triode or a relay. When the switching device is a relay, a negative pole of a diode of the rectifying unit is connected to one end of the relay, and the other end of the relay Connect to a low voltage battery pack.
8. 根据权利要求 1-7中任一项所述的变换装置， 其特征在于： 所述变换装置为单相集成开关 磁阻电机驱动与低压电池的变换装置或三相集成开关磁阻电机驱动与低压电池变换装置。 The conversion device according to any one of claims 1 to 7, wherein: the conversion device is a single-phase integrated switched reluctance motor drive and a low-voltage battery conversion device or a three-phase integrated switch reluctance motor drive With low voltage battery converter.
9. 根据权利要求 8 所述的变换装置， 其特征在于： 所述单相集成开关磁阻电机驱动与低压 电池的变换装置中， 所述控制模块为数字控制器或微机控制器， 所述驱动模块为两个电力电 子开关和两个续流二极管， 所述电力电子开关串联在开关磁阻电机的绕组的两端， 所述两个 续流二极管分别与所述开关磁阻电机的绕组和一个所述的电力电子开关并联； 所述 DC-DC 变换模块为一个电力电子开关和一个二极管， 所述电力电子开关和所述二极管串联。 The conversion device according to claim 8, wherein: the single-phase integrated switched reluctance motor drives and the low-voltage battery conversion device, wherein the control module is a digital controller or a microcomputer controller, and the driving The module is two power electronic switches and two freewheeling diodes, the power electronic switch is connected in series at two ends of the winding of the switched reluctance motor, and the two freewheeling diodes are respectively connected with the winding of the switched reluctance motor and The power electronic switch is connected in parallel; the DC-DC conversion module is a power electronic switch and a diode, and the power electronic switch and the diode are connected in series.
10. 根据权利要求 8所述的变换装置， 其特征在于： 所述三相集成开关磁阻电机驱动与低压 电池的变换装置中， 所述驱动模块为六个电力电子开关和六个续流二极管， 每个电力电子 开关和每个续流二极管串联后， 并联设置在所述高压储能模块的两极之间， 相邻的两组并联 线路中， 所述电力电子开关和续流二极管的串联顺序相反； 所述三相电机的每个绕组在相邻 的所述并联线路的中心点引出； 所述 DC-DC 变换模块为一个电力电子开关和三个二极管， 所述二极管分别与所述绕组串联后， 连接到所述电力电子开关的集电极。 10. The conversion device according to claim 8, wherein: in the three-phase integrated switched reluctance motor driving and low voltage battery conversion device, the driving module is six power electronic switches and six freewheeling diodes. , every power electronics The switch and each of the freewheeling diodes are connected in series, and are arranged in parallel between the two poles of the high voltage energy storage module. In the adjacent two sets of parallel lines, the series order of the power electronic switch and the freewheeling diode is opposite; Each winding of the phase motor is taken out at a center point of the adjacent parallel line; the DC-DC conversion module is a power electronic switch and three diodes, and the diodes are connected in series with the windings, and are connected to the The collector of the power electronic switch.
PCT/CN2012/087909 2012-08-14 2012-12-28 Conversion device integrated with switched reluctance motor drive and low-voltage battery charging WO2014026460A1 (en)

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