Conversion device capable of integrating drive and low-voltage battery charging of switch reluctance motor

A conversion device and reluctance motor technology, applied in battery circuit devices, battery/fuel cell control devices, battery/battery traction, etc., can solve the problems of wasting equipment and space, achieve space saving, compact hardware structure, reduce The effect of cost and complexity of the board layout

Inactive Publication Date: 2012-12-26
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that in the prior art, the drive of the switched reluctance motor and the charging of the DC power low-voltage battery use separate equipment, which wastes equipment and space, and further provides an integrated switched reluctance motor drive and DC power low-voltage battery charging. the conversion device

Method used

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  • Conversion device capable of integrating drive and low-voltage battery charging of switch reluctance motor
  • Conversion device capable of integrating drive and low-voltage battery charging of switch reluctance motor
  • Conversion device capable of integrating drive and low-voltage battery charging of switch reluctance motor

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A conversion device integrating switched reluctance motor drive and low-voltage battery charging, such as figure 1 As shown, it includes: a high-voltage energy storage module, a drive module, a control module, a DC-DC conversion module, and a low-voltage energy storage module, wherein the high-voltage energy storage module is connected to the drive module, and the drive module is connected to the DC-DC The conversion module is connected, the DC-DC module is connected with the low-voltage energy storage module, and the control module is connected with the drive module and the DC-DC conversion module respectively. The conversion device realizes the multiplexing of the two functions of driving the switched reluctance motor and charging the DC-DC converter.

[0027] The high-voltage energy storage module internally stores energy generated from the grid or other power generation equipment, and is a large-capacity high-voltage energy storage device. The high-voltage energy st...

Embodiment 2

[0032] Circuits for single-phase integrated switched reluctance motor drives and low-voltage battery converters, such as figure 2 shown.

[0033] The high-voltage energy storage module includes a high-voltage battery pack, the drive 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 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 is associated with figure 2 Corresponding to the device in.

[0034] In this embodiment, in the single-phase integrated switched reluctance motor drive and low-voltage battery conversion device, the control module is a digital controller or a microcomputer controller, and the drive module is two power electronic switches (Q1 and Q2) and two freewheeling diodes (D1 an...

Embodiment 3

[0036] Circuits for three-phase integrated switched reluctance motor drives and low-voltage battery converters, such as image 3 shown.

[0037] The high-voltage energy storage module includes a high-voltage battery pack, the drive module includes power electronic switching devices (Q1-Q6) and semiconductor diodes (D1-D6), the control module includes a digital processor or a microcomputer processor, the The DC-DC conversion module includes a power electronic switching device (Qz) and semiconductor diodes (D7-D9), and the low-voltage energy storage module includes a low-voltage battery pack. Each module is associated with image 3 Corresponding to the device in.

[0038] Circuit schematic diagram of three-phase integrated switched reluctance motor drive and low-voltage battery charging conversion device. The whole system is composed of power electronic switching devices and power diodes, capacitors, batteries, motors, power electronic switching device drive boards and contr...

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PUM

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Abstract

The invention provides a conversion device capable of integrating drive and low-voltage battery charging of a switch reluctance motor. The conversion device capable of integrating drive and low-voltage battery charging of the switch reluctance motor comprises a high-voltage energy-storing module, a driving module which is connected with the high-voltage energy-storing module, a control module which is connected with the driving module, and also a direct current (DC)-direct current (DC) conversion module which is connected with the control module and the driving module, wherein low-voltage electric energy is stored in a low-voltage energy-storing module and used to supply power to low-voltage equipment. The control module is used to control operation of the driving module and the low-voltage energy-storing module according to preset procedures. The driving module drives operation of the switch reluctance motor, is used to receive a command of a control unit to drive the DC-DC conversion module, and charges the electric energy of the high-voltage energy-storing module to the low-voltage energy-storing module. Meanwhile, the function of the drive and low-voltage battery charging of the switch reluctance motor is integrated, not only is device space saved, but also time sharing multiplexing of the device is achieved. Cost of a component and complexity of wiring of a circuit board are greatly reduced so that a hardware structure is more compact.

Description

technical field [0001] The invention relates to a switched reluctance motor drive system, in particular to a switching reluctance motor drive and a low-voltage battery charging conversion device integrated. Background technique [0002] Switched reluctance motor is a new type of speed regulation motor. The speed regulation system has the advantages of both DC and AC speed regulation systems. It is the latest generation of stepless speed regulation system following the frequency conversion speed regulation system and brushless DC motor speed regulation system. The driving circuit of the switched reluctance motor in the prior art mainly includes a DC power supply, 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 main function of the above-mentioned DC capacitor is to provide a buffer for the rectification circuit or the battery, and stabilize the DC bus voltage. N...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/08H02M3/10H02J7/00
CPCH02J7/00H02P6/08B60L15/007B60L50/51B60L58/20B60L58/21B60L2210/12B60L2210/14B60L2220/18H02J7/24H02J2310/40H02P25/092Y02T10/64Y02T10/70Y02T10/72
Inventor 梁嘉宁徐国卿蹇林旎李卫民常明王亮荣
Owner SHENZHEN INST OF ADVANCED TECH
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