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JPS56132181A - Standby braking circuit for power conversion device for electric motor operation at variable speed - Google Patents

Standby braking circuit for power conversion device for electric motor operation at variable speed

Info

Publication number
JPS56132181A
JPS56132181A JP3496680A JP3496680A JPS56132181A JP S56132181 A JPS56132181 A JP S56132181A JP 3496680 A JP3496680 A JP 3496680A JP 3496680 A JP3496680 A JP 3496680A JP S56132181 A JPS56132181 A JP S56132181A
Authority
JP
Japan
Prior art keywords
voltage
electric motor
circuit
charging
power supply
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.)
Granted
Application number
JP3496680A
Other languages
Japanese (ja)
Other versions
JPS6122556B2 (en
Inventor
Hiroo Tomita
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP3496680A priority Critical patent/JPS56132181A/en
Publication of JPS56132181A publication Critical patent/JPS56132181A/en
Publication of JPS6122556B2 publication Critical patent/JPS6122556B2/ja
Granted 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE:To correct a reference value at time of charging a resistance for generated power consumption depending on a variation of power supply side of an inverter device and charging the said resistance according to a difference between a voltage on the stanby rectifier and a voltage on a DC circuit. CONSTITUTION:A voltage-type inverted is connected through the intermediar of a main rectifier 1 and a DC intermediate circuit including a smoothing condenser C both connected to an AC power supply, and then an electric power of variable frequency is supplied to an electric motor 3. In addition, a standby rectifier 4 is connected to an AC power supply and an output voltage Vr from the said standby rectifer and a volgate Vd on a DC circuit are compared to control an electric current detector 5, so that a switch SW is actuated to charnge or shutt off a resistor R for generated power consumption. Consequently, it is possible to automatically correct the charging of the resistor R according to a chare in power suply voltage when the voltage Vd on DC circuit has increased following the starting of an electric generator at time of braking an electric motor 3. Thus the adjustment of a reference level value is not required.
JP3496680A 1980-03-19 1980-03-19 Standby braking circuit for power conversion device for electric motor operation at variable speed Granted JPS56132181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3496680A JPS56132181A (en) 1980-03-19 1980-03-19 Standby braking circuit for power conversion device for electric motor operation at variable speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3496680A JPS56132181A (en) 1980-03-19 1980-03-19 Standby braking circuit for power conversion device for electric motor operation at variable speed

Publications (2)

Publication Number Publication Date
JPS56132181A true JPS56132181A (en) 1981-10-16
JPS6122556B2 JPS6122556B2 (en) 1986-06-02

Family

ID=12428879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3496680A Granted JPS56132181A (en) 1980-03-19 1980-03-19 Standby braking circuit for power conversion device for electric motor operation at variable speed

Country Status (1)

Country Link
JP (1) JPS56132181A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193875A (en) * 1982-04-30 1983-11-11 三菱電機株式会社 Operating device in case of emergency of alternating current elevator
JPS58197167A (en) * 1982-05-11 1983-11-16 三菱電機株式会社 Controller for alternating current elevator
JPS59138400U (en) * 1983-03-07 1984-09-14 株式会社東芝 overvoltage protection device
JPS60187268A (en) * 1984-03-07 1985-09-24 Mitsubishi Electric Corp Power recovery controller
JPS6181792U (en) * 1984-10-29 1986-05-30
JPS62111796U (en) * 1985-12-27 1987-07-16

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193875A (en) * 1982-04-30 1983-11-11 三菱電機株式会社 Operating device in case of emergency of alternating current elevator
JPS58197167A (en) * 1982-05-11 1983-11-16 三菱電機株式会社 Controller for alternating current elevator
JPS6319429B2 (en) * 1982-05-11 1988-04-22 Mitsubishi Electric Corp
JPS59138400U (en) * 1983-03-07 1984-09-14 株式会社東芝 overvoltage protection device
JPS60187268A (en) * 1984-03-07 1985-09-24 Mitsubishi Electric Corp Power recovery controller
JPS6181792U (en) * 1984-10-29 1986-05-30
JPS62111796U (en) * 1985-12-27 1987-07-16

Also Published As

Publication number Publication date
JPS6122556B2 (en) 1986-06-02

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