CN103840719A - Method for logically controlling combined chopped waves of power switch devices of switched reluctance motor - Google Patents

Method for logically controlling combined chopped waves of power switch devices of switched reluctance motor Download PDF

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Publication number
CN103840719A
CN103840719A CN201210490738.1A CN201210490738A CN103840719A CN 103840719 A CN103840719 A CN 103840719A CN 201210490738 A CN201210490738 A CN 201210490738A CN 103840719 A CN103840719 A CN 103840719A
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CN
China
Prior art keywords
power switch
power
switch pipe
reluctance motor
circuit
Prior art date
Application number
CN201210490738.1A
Other languages
Chinese (zh)
Inventor
苗骞
郭振
Original Assignee
浙江仕迈电机有限公司
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.)
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Publication date
Application filed by 浙江仕迈电机有限公司 filed Critical 浙江仕迈电机有限公司
Priority to CN201210490738.1A priority Critical patent/CN103840719A/en
Publication of CN103840719A publication Critical patent/CN103840719A/en

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Abstract

The invention discloses a method for logically controlling combined chopped waves of power switch devices of a switched reluctance motor. A combined chopped wave logical control circuit adopted in the method comprises a signal feedback circuit, a logical processing chip and a power drive circuit, wherein the logical processing chip and the power drive circuit are connected in sequence. A power switch tube set in the power drive circuit is of an asymmetric bridge type topological circuit structure. Each phase is of a structure of an upper bridge arm and a lower bridge arm, wherein the structure is composed of two power switch tubes, two diodes and a motor winding in series connection. When the current of the switched reluctance motor is increased, the power switch tubes of the upper bridge arm and the lower bridge arm are switched on simultaneously; when the current is reduced, one power switch tube is switched off and the other power switch tube is switched on. According to the method for logically controlling the combined chopped waves of the power switch devices of the switched reluctance motor, consumption of a switch is evenly distributed to the two switch devices on one phase, the use frequency of the switch devices is balanced, so that the problem that the power switch devices emit heat unevenly is solved, the switching stress of the power switch devices is reduced, and the service life of the power switch tubes is prolonged.

Description

A kind of switched reluctance motor combination of power switches chopped wave logic control method
Technical field
The present invention relates to a kind of switched reluctance motor combination of power switches chopped wave logic control method, belong to the technical field of switched reluctance motor optimal control.
Background technology
At present in the Current Control of switch magnetic negative electricity motivation, conventional current copped wave control (CCC) mode is by regulating the opening an of power switch pipe, turn-off time ratio, reaching the object of controlling motor output current.When limiting motor electric current, power switch pipe loss increases with the raising of switching frequency, causes certain period internal power switching tube heating uneven.Meanwhile, the voltage change ratio dv/dt in switching process on power switch pipe significantly increases with switching frequency, has strengthened the voltage stress of power switch pipe, affects the life-span of power switch pipe.
Summary of the invention
For above-mentioned defect, the invention provides a kind of switched reluctance motor combination of power switches chopped wave logic control method, can solve the device for power switching uneven problem of generating heat, thereby reduce the switch stress of device for power switching, extend the life-span of power switch pipe.
To achieve these goals, technical scheme of the present invention is:
A kind of switched reluctance motor combination of power switches chopped wave logic control method,
1.1, design one combination copped wave logic control circuit, comprises the signal feedback circuit being connected with switched reluctance motor, and described signal feedback circuit connects logical process chip and power driving circuit successively; Described power driving circuit, three phase mains input offers power switch pipe after bridge rectifier and filter capacitor C, power switch pipe forms asymmetric bridge type topology circuit structure, each becomes upper and lower two bridge arm structures by two power switch pipes, two diodes with motor windings in series, the power switch pipe of the upper and lower brachium pontis in main circuit power unit connects respectively the positive and negative busbar of main circuit;
1.2, combination copped wave logic control circuit, the operating state of signal feedback circuit sense switch reluctance motor, and detection signal is sent to logical process chip sends instruction, carry out the conducting of power ratio control switching tube; When switched reluctance motor is in the time that electric current increases state, the conducting simultaneously of the power switch pipe of upper and lower brachium pontis; In the time that electric current reaches current settings higher limit, enter reduction current status, turn-off a power switch pipe and keep another power switch pipe to continue conducting, logical process chip records the operating state of current power switching tube; After reduction current status finishes, entering electric current increases state, the conducting simultaneously of the power switch pipe of upper and lower brachium pontis:
In the time that reaching current settings higher limit, electric current enters reduction current status, the power switch pipe on off state of logical process chip contrast record, close another power and open fire and manage and keep power switch pipe to continue conducting, logical process chip records the operating state of current power switching tube.
Switched reluctance motor combination of power switches chopped wave logic control method of the present invention, on two switching devices that the loss mean allocation to of switch is gone up mutually, the balanced frequency of utilization of switching device, the uneven problem thereby solution device for power switching generates heat, reduce the cry switch stress of part of power switch, extend the life-span of power switch pipe.
Accompanying drawing explanation
Fig. 1 is logic control circuit theory diagram of the present invention.
Fig. 2 is the circuit diagram of power driving circuit of the present invention.
Fig. 3 is logical signal copped wave schematic diagram of the present invention
Wherein: C electric capacity, D1-D6 diode, S1-S6 power switch pipe.
Embodiment
Lower and by reference to the accompanying drawings and specific embodiment the present invention is further described.
Switched reluctance motor combination of power switches chopped wave logic control method of the present invention, first design a combination copped wave logic control circuit, as shown in Figure 1, combination copped wave logic control circuit comprise the letter bow that is connected with switched reluctance motor ' feedback circuit, ' feedback circuit connects logical process chip and power driving circuit successively in described doubly bending; As shown in Figure 2, described power driving circuit, three phase mains input offers power switch pipe after bridge rectifier and filter capacitor C, power switch pipe forms asymmetric bridge type topology circuit structure, each becomes upper, ' foretell two bridges ' (i) structure by two power switch pipes, two diodes and motor windings in series, and the power switch pipe of the upper and lower brachium pontis in main circuit power unit connects respectively the positive and negative busbar of main circuit:
As shown in Figure 3, combination copped wave logic control circuit, signal feedback circuit detects the operating state of Ji pass reluctance motor, and detection signal transmission is striven to logical process chip rice and send instruction, control the conducting of the rich switching tube of merit: when switched reluctance motor is in the time that electric current increases state, upper and lower brachium pontis] conducting simultaneously of power rate switching tube: in the time that reaching current settings higher limit, electric current enters reduction current status, turn-off a power switch pipe and keep another power switch pipe to continue conducting, logical process chip records the operating state of current power Ji pass pipe; Reduce after current status finishes and enter electric current increase state, the power switch pipe of upper and lower brachium pontis is sighed logical simultaneously;
In the time that reaching current settings one limit value, electric current enters reduction current status, the power switch pipe on off state of logical process chip contrast record, close another power switch pipe and keep a power switch pipe to continue conducting, logical process chip records the operating state of current power switching tube.
The technical scheme of gizmo is not limited to above-mentioned tool stops the restriction of embodiment, and the every technology distortion that the technical scheme of deleting gizmo is made, within all falling into protection scope of the present invention.

Claims (1)

1. a switched reluctance motor combination of power switches chopped wave logic control method, is characterized in that:
1.1, design one combination copped wave logic control circuit, comprises the signal feedback circuit being connected with switched reluctance motor, and described signal feedback circuit connects logical process chip and power driving circuit successively; Described power driving circuit, three phase mains input offers power switch pipe after bridge rectifier and filter capacitor C, power switch pipe forms asymmetric bridge type topology circuit structure, each becomes upper and lower two bridge arm structures by two power switch pipes, two diodes with motor windings in series, the power switch pipe of the upper and lower brachium pontis in main circuit power unit connects respectively the positive and negative busbar of main circuit;
1.2, combination copped wave logic control circuit, the operating state of signal feedback circuit sense switch reluctance motor, and detection signal is sent to logical process chip sends instruction, carry out the conducting of power ratio control switching tube; When switched reluctance motor is in the time that electric current increases state, the conducting simultaneously of the power switch pipe of upper and lower brachium pontis; In the time that electric current reaches current settings higher limit, enter reduction current status, turn-off a power switch pipe and keep another power switch pipe to continue conducting, logical process chip records the operating state of current power switching tube; After reduction current status finishes, entering electric current increases state, the conducting simultaneously of the power switch pipe of upper and lower brachium pontis;
In the time that reaching current settings higher limit, electric current enters reduction current status, the power switch pipe on off state of logical process chip contrast record, close another power switch pipe and keep a power switch pipe to continue conducting, logical process chip records the operating state of current power switching tube.
CN201210490738.1A 2012-11-22 2012-11-22 Method for logically controlling combined chopped waves of power switch devices of switched reluctance motor CN103840719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210490738.1A CN103840719A (en) 2012-11-22 2012-11-22 Method for logically controlling combined chopped waves of power switch devices of switched reluctance motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210490738.1A CN103840719A (en) 2012-11-22 2012-11-22 Method for logically controlling combined chopped waves of power switch devices of switched reluctance motor

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CN103840719A true CN103840719A (en) 2014-06-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016066025A1 (en) * 2014-10-30 2016-05-06 中国矿业大学 Switch reluctance motor wide speed-regulation range cross-control method
CN106100506A (en) * 2016-06-30 2016-11-09 南京航空航天大学 Double salient-pole electric machine drive system and multitube thereof interlock chop control technology
CN106886239A (en) * 2015-12-15 2017-06-23 中国核动力研究设计院 A kind of method for the control of ACP100 drive mechanisms current switching

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004056999A (en) * 2002-07-22 2004-02-19 Switched Reluctance Drives Ltd Control method and controlling equipment of switched reluctance machine
CN101453185A (en) * 2007-12-07 2009-06-10 北京中纺锐力机电有限公司 Winding current waveform controlling method for switch reluctance motor braking process
CN101534085A (en) * 2008-03-14 2009-09-16 北京中纺锐力机电有限公司 Three-phase switch reluctance motor power circuit with two power switches connected in series
CN101699757A (en) * 2009-10-28 2010-04-28 南京航空航天大学 Method suitable for low-speed switched reluctance motor without position sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004056999A (en) * 2002-07-22 2004-02-19 Switched Reluctance Drives Ltd Control method and controlling equipment of switched reluctance machine
CN101453185A (en) * 2007-12-07 2009-06-10 北京中纺锐力机电有限公司 Winding current waveform controlling method for switch reluctance motor braking process
CN101534085A (en) * 2008-03-14 2009-09-16 北京中纺锐力机电有限公司 Three-phase switch reluctance motor power circuit with two power switches connected in series
CN101699757A (en) * 2009-10-28 2010-04-28 南京航空航天大学 Method suitable for low-speed switched reluctance motor without position sensor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016066025A1 (en) * 2014-10-30 2016-05-06 中国矿业大学 Switch reluctance motor wide speed-regulation range cross-control method
RU2639886C1 (en) * 2014-10-30 2017-12-25 Чайна Юниверсити Оф Майнинг Энд Текнолоджи Method of cross-cutting control in wide range of velocity of ac electronicreaction motor
US9979342B2 (en) 2014-10-30 2018-05-22 China University Of Mining And Technology Switch reluctance motor wide speed-regulation range cross-control method
CN106886239A (en) * 2015-12-15 2017-06-23 中国核动力研究设计院 A kind of method for the control of ACP100 drive mechanisms current switching
CN106886239B (en) * 2015-12-15 2018-07-06 中国核动力研究设计院 A kind of method for the control of ACP100 driving mechanisms current switching
CN106100506A (en) * 2016-06-30 2016-11-09 南京航空航天大学 Double salient-pole electric machine drive system and multitube thereof interlock chop control technology
CN106100506B (en) * 2016-06-30 2018-11-09 南京航空航天大学 Double salient-pole electric machine drive system and its multitube interlock chop control technology

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Application publication date: 20140604