WO1995001003A1 - Regisseur de moteur a induction - Google Patents

Regisseur de moteur a induction Download PDF

Info

Publication number
WO1995001003A1
WO1995001003A1 PCT/JP1994/000829 JP9400829W WO9501003A1 WO 1995001003 A1 WO1995001003 A1 WO 1995001003A1 JP 9400829 W JP9400829 W JP 9400829W WO 9501003 A1 WO9501003 A1 WO 9501003A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
circuit
induction motor
power failure
control circuit
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/JP1994/000829
Other languages
English (en)
Japanese (ja)
Inventor
Shinichi Kono
Junichi Tezuka
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1995001003A1 publication Critical patent/WO1995001003A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/06—Controlling the motor in four quadrants
    • 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
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor

Definitions

  • the present invention relates to an induction motor control device, and more particularly to a control device for decelerating and stopping an induction motor when power is lost due to a power failure or the like.
  • the present invention has been made in view of such a point, and an object of the present invention is to provide an induction motor control device that can quickly decelerate and stop an induction motor even during a power failure.
  • an induction motor A power regeneration power circuit having an AC terminal connected to an input power source, a power transistor switching circuit having an AC terminal connected to the induction motor, and the power regeneration device.
  • a DC link connected between a power circuit and the power transistor switching circuit, and a DC link for adjusting a rotation speed of the induction motor and returning electric energy generated during braking of the induction motor to the DC link.
  • An induction motor control circuit for controlling a power transition switching circuit; and the power regeneration power recovery circuit for regenerating electric energy generated during braking of the induction motor and returned to the DC link to the input power supply.
  • a power regenerative control circuit that controls the power supply path, and monitors the voltage of the input power supply and outputs a power failure detection signal when a power failure occurs
  • a power failure detection circuit and a resistance discharge control circuit configured to receive a power failure detection signal from the power failure detection circuit and perform switching control so that electric energy of the DC link is consumed by a discharge resistor.
  • An induction motor control device is provided.
  • a power failure detection signal is output therefrom.
  • This power failure detection signal gives a command to the power regeneration control circuit to stop the operation of the power regeneration power circuit, and gives an instruction to the induction motor control circuit to decelerate and stop the induction motor. At the same time, it activates the resistance discharge control circuit to consume the electric energy returned to the DC link by the discharge resistance.
  • FIG. 1 is a block diagram showing the principle of the induction motor control device of the present invention.
  • FIG. 2 is a circuit diagram showing one embodiment of a switching power supply circuit
  • FIG. 3 is a circuit diagram showing one embodiment of a power failure detection circuit
  • FIG. 4 is a circuit diagram showing one embodiment of the resistance discharge control circuit. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a block diagram showing the principle of the induction motor control device of the present invention.
  • reference numeral 1 denotes an input power supply which is, for example, a three-phase alternating current commercial power supply.
  • the DC side terminal of the power regeneration power circuit 2 is connected to the DC link 3 constituted by a capacitor.
  • the DC link 3 is also connected to the DC terminal of the power transistor switching circuit 4, and its AC terminal is connected to the induction motor 5.
  • the power regeneration power circuit 2 has a control input connected to a control output of the power regeneration control circuit 6.
  • the control input of the power transistor switching circuit 4 is connected to the control output of the induction motor control circuit 7.
  • the induction motor control circuit 7 is also connected to receive a pulse output of a pulse generator 8 connected coaxially directly to the main shaft of the induction motor 5, for example.
  • a switching power supply circuit 9 is connected as a power supply for the power regeneration control circuit 6 and the induction motor control circuit 7. Above power regeneration power circuit 2, DC link 3, no.
  • the switching circuit 4, the induction motor 5, the power regeneration control circuit 6, the induction motor control circuit 7, and the switching power supply circuit 9 are components of the conventional induction motor control device.
  • the induction motor control device of the present invention is further connected to an input power source 1.
  • a power failure detection circuit 10 for monitoring a power failure is provided, and its output is connected to a power regeneration control circuit 6, an induction motor control circuit 7, and a resistance discharge control circuit 11.
  • the resistance discharge control circuit 11 is connected to the DC link 3 and the discharge resistor 12. The power failure detection circuit 10 and the resistance discharge control circuit 11 are connected so that power is supplied from the switching power supply circuit 9.
  • a configuration including an input power supply 1, a power regeneration power circuit 2, a DC link 3, a power transistor switching circuit 4, and an induction motor 5 is a configuration normally found in an overnight-induction-type induction motor control device. That is, when the drive of the induction motor 5 is controlled, the power regeneration power circuit 2 functions as a converter and the power transistor switching circuit 4 functions as an inverter. The power transistor switching circuit 4 also functions as a speed sensor of the induction motor 5. Upon receiving a pulse signal from the pulse generator 8, the induction motor 5 is controlled to rotate at a predetermined speed.
  • the power transistor switching circuit 4 is switched to the converter, and the power regeneration power circuit 2 is switched to the inverter all the time, and the regenerative current generated by braking is input to the input power source 1. To return to.
  • the power failure detection circuit 10 detects the power failure of the input power supply 1 and outputs a power failure detection signal.
  • the power failure detection signal is based on the power regeneration control circuit 6 and the induction motor control circuit 7.
  • the resistance discharge control circuit 11 Upon receiving the power failure detection signal, the power regeneration control circuit 6 controls the power regeneration power circuit 2 to stop operating.
  • Induction motor control circuit 7 Upon receiving the detection signal, the power transistor switching circuit 4 is controlled to decelerate and stop the induction motor 5.
  • the resistance discharge control circuit 11 controls the terminal of the DC link 3 to connect to the discharge resistor 12, and the electric engine returned from the induction motor 5 to the DC link 3. The energy is consumed by the discharge resistor. At this time, in order to maintain these effects, the switching power supply circuit 9 takes power from the DC link 3.
  • FIG. 2 is a circuit diagram showing one embodiment of the switching power supply circuit 9.
  • the switching power supply circuit 9 has two bridge rectifiers B 1 and B 2 each constituted by four diodes.
  • the bridge rectifier B 1 is connected to an arbitrary two-phase line of the input power supply 1 at its AC input, and rectifies to DC.
  • bridge rectifier B2 is connected to receive the terminal voltage of DC link 3.
  • the DC voltage obtained by rectifying the input power 1 or obtained from the DC link 3 is smoothed by the capacitor C 1.
  • the capacitor C 1 is connected in parallel with the series connection of the primary winding of the transformer T and the transistor Tr 1.
  • a rectifier circuit consisting of a diode D and a capacitor C2 is connected to the secondary winding of the transformer T, and its rectified output is connected to an output terminal that supplies a constant voltage.
  • the switching control circuit 20 which receives feedback of the voltage appearing at the output terminal, controls on / off of the transistor Trl so that the output voltage becomes constant.
  • FIG. 3 is a circuit diagram showing one embodiment of the power failure detection circuit 10.
  • the power failure detection circuit 10 has a bridge rectifier B3 for three-phase rectification at its AC input.
  • This bridge rectifier B 3 Is connected to a capacitor C3 for smoothing, a voltage divider composed of resistors Rl and R2 is connected to the capacitor C3, and a resistor R3 is connected to a connection point at the midpoint of the voltage divider. I have.
  • the other end of the resistor R3 is connected to the light emitting diode of the photocabler PC.
  • the phototransistor of the photocoupler PC has its collector supplied with the output voltage + V of the switching power supply circuit 9 and its emitter connected to the 0 V output of the switching power supply circuit 9 via the resistor R4. I have.
  • the connection between the emitter and the resistor R4 constitutes the output of the power failure detection circuit 10, and outputs a power failure detection signal when a power failure occurs.
  • FIG. 4 is a circuit diagram showing one embodiment of the resistance discharge control circuit 11.
  • the resistance discharge control circuit 11 has a comparator CMP.
  • a reference voltage source is connected to its inverting input. I have.
  • the reference voltage source is composed of a resistor R5 and a Zener diode ZD.
  • the non-inverting input of the comparator CMP is a voltage divider composed of the DC link 3 terminal voltage by two resistors R6 and R7.
  • the output of the comparator CMP is connected to the non-inverting input with a resistor R8 that provides a hysteresis characteristic for turning the comparator on and off.
  • a pull-up resistor R9 is connected between the voltage and + V.
  • the output of the comparator CMP is also connected to one input of the AND gate G, and the other input of the AND gate G is connected so that the power failure detection signal is input via the inverter I. .
  • the output of the AND gate G is connected to the base of a power transistor Tr2 serving as a switching element. No ,.
  • One end of a discharge resistor 12 is connected to the collector of the power transistor Tr 2, and a DC link is connected between the other end of the discharge resistor 12 and the emitter of the power transistor Tr 2.
  • the resistive discharge control circuit 11 receives an H-level signal at the input of the inverter I except during a power outage.Therefore, one input of the AND gate G has an L-level inverted by the inverter I. Therefore, the output of the AND gate G always becomes an L level signal, and the power transistor Tr 2 is not turned on.
  • the L level power outage detection signal will be received at the input of the inverter I. Then, one input of the AND gate G becomes an H level signal inverted by the inverter I, and the AND gate G controls the power transistor Tr 2 according to the output state of the comparator CMP. become.
  • the output of the comparator CMP becomes H level, and the power transistor Tr 2 is turned on.
  • the terminal voltage of the DC link 3 is applied to the discharge resistor 12 and consumed.
  • the induction resistor in which the discharge resistor 12 acts as a generator The load on the motive motor 5 causes the induction motor 5 to decelerate.
  • the terminal voltage of the DC link 3 recovers, and when the terminal voltage exceeds a predetermined voltage again, the resistive discharge is restarted. In this way, the terminal voltage of the DC link 3 is prevented from dropping below a predetermined voltage, and the operation of the switching power supply circuit 9 that uses the terminal voltage of the DC link 3 as an input power is guaranteed. I am trying to.
  • the switching power supply circuit 9 uses the terminal voltage of the DC link 3 as the input power at the time of the power failure
  • a battery may be provided as another embodiment of the switching power supply circuit 9. That is, the battery is charged during normal operation, and power is supplied to each circuit from the battery during a power failure.
  • the resistance discharge control circuit 11 does not need a comparator that controls the terminal voltage of the DC link 3 so as not to drop below a predetermined voltage.
  • the energy generated when the induction motor decelerates and stops is regenerated to the input power source, and at the time of a power failure, such energy is switched to resistance discharge.
  • the induction motor can be reliably decelerated and stopped without coasting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)
  • Control Of Velocity Or Acceleration (AREA)

Abstract

Régisseur de moteur à induction dans un système de régénération de puissance conçu pour ralentir ou stopper un moteur à induction même en cas de panne d'alimentation. Ledit régisseur comprend un circuit de détection de panne de secteur (100) contrôlant la tension de la puissance d'entrée (1) et produit un signal de panne d'alimentation lorsqu'une panne d'alimentation se produit, ainsi qu'un circuit de commande de décharge à résistances (11) qui assure une commutation de manière à permettre à une résistance de décharge (12) de dissiper l'énergie électrique d'une liaison CC (3) dès réception d'un signal de défaillance électrique en provenance du circuit (10). En fonctionnement normal, la régénération se produit, tandis qu'en cas de panne d'alimentation, il se produit une décharge dans une résistance en vue de décélérer et arrêter le moteur.
PCT/JP1994/000829 1993-06-23 1994-05-24 Regisseur de moteur a induction Ceased WO1995001003A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5/151667 1993-06-23
JP15166793A JPH0715988A (ja) 1993-06-23 1993-06-23 誘導電動機制御装置

Publications (1)

Publication Number Publication Date
WO1995001003A1 true WO1995001003A1 (fr) 1995-01-05

Family

ID=15523607

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1994/000829 Ceased WO1995001003A1 (fr) 1993-06-23 1994-05-24 Regisseur de moteur a induction

Country Status (2)

Country Link
JP (1) JPH0715988A (fr)
WO (1) WO1995001003A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2262794C2 (ru) * 2003-07-15 2005-10-20 Ульяновский государственный технический университет Рекуперирующий электропривод с инвертором напряжения
RU2303851C1 (ru) * 2005-11-03 2007-07-27 Аркадий Петрович Стригулин Статический многоуровневый преобразователь частоты для питания асинхронных и синхронных электродвигателей
RU2388136C2 (ru) * 2008-01-09 2010-04-27 Татьяна Леонидовна Алексеева Способ регулирования мощности и устройство преобразователя сопротивления для электрических машин переменного тока

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002374689A (ja) * 2001-06-14 2002-12-26 Mitsubishi Electric Corp 電動機駆動装置及び洗濯機
CN101207349B (zh) * 2006-12-22 2014-05-07 海德堡印刷机械股份公司 用于印刷机的安全的电制动装置
JP5169060B2 (ja) * 2007-08-06 2013-03-27 株式会社明電舎 電源回生インバータ装置の停電検出装置
JP2012249397A (ja) * 2011-05-27 2012-12-13 Hitachi Appliances Inc モータ制御装置およびこれを備えた空気調和機
JP2015145772A (ja) * 2014-02-04 2015-08-13 ダイキン工業株式会社 冷凍装置の運転制御装置
JP7003965B2 (ja) * 2019-04-23 2022-01-21 フジテック株式会社 乗客コンベア

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63290197A (ja) * 1987-05-20 1988-11-28 Nippon Oochisu Elevator Kk エレベ−タ駆動用インバ−タ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63290197A (ja) * 1987-05-20 1988-11-28 Nippon Oochisu Elevator Kk エレベ−タ駆動用インバ−タ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2262794C2 (ru) * 2003-07-15 2005-10-20 Ульяновский государственный технический университет Рекуперирующий электропривод с инвертором напряжения
RU2303851C1 (ru) * 2005-11-03 2007-07-27 Аркадий Петрович Стригулин Статический многоуровневый преобразователь частоты для питания асинхронных и синхронных электродвигателей
RU2388136C2 (ru) * 2008-01-09 2010-04-27 Татьяна Леонидовна Алексеева Способ регулирования мощности и устройство преобразователя сопротивления для электрических машин переменного тока

Also Published As

Publication number Publication date
JPH0715988A (ja) 1995-01-17

Similar Documents

Publication Publication Date Title
KR950015173B1 (ko) 교류 전동기 제어 장치
JPH0697875B2 (ja) エレベ−タ駆動用インバ−タ
JP5080161B2 (ja) インバータ装置
WO1996021967A1 (fr) Appareil regulateur de vitesse a modulation de largeur d'impulsion pour ascenseur a courant continu
WO1995001003A1 (fr) Regisseur de moteur a induction
JP2000188897A (ja) モータ制御装置
US4482854A (en) Inverter circuit
JPH0412686A (ja) 交流モータ駆動回路
JP2575820B2 (ja) エレベータの停電時運転装置
JPH1118464A (ja) モータ制御装置
JPS63186505A (ja) 交流電気車の制御装置
JP3591476B2 (ja) モータ制御システム
JPS6162393A (ja) インバ−タ装置
JP3276991B2 (ja) 直流ブラシレスモータの制御装置
KR20200050102A (ko) 전동기의 비상전원 제어장치
JPS58157389A (ja) 直流サ−ボモ−タ駆動回路
JPS6345808Y2 (fr)
JPS6315698A (ja) ベクトル制御のインバータ装置
JP2932131B2 (ja) 電力変換装置の停電検知方法及びその装置
JPH027885A (ja) 誘導電動機の制御装置
KR100347716B1 (ko) 정전시 세탁기의 제동방법
JPH01209970A (ja) モータのダイナミックブレーキ装置
JP2003061376A (ja) モータ制御装置
KR200156755Y1 (ko) 교류형 서보전동기의 구동장치
JPH04359687A (ja) モータ駆動制御回路

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): US VN