JPS57206292A - Controlling device for variable speed motor - Google Patents

Controlling device for variable speed motor

Info

Publication number
JPS57206292A
JPS57206292A JP56090339A JP9033981A JPS57206292A JP S57206292 A JPS57206292 A JP S57206292A JP 56090339 A JP56090339 A JP 56090339A JP 9033981 A JP9033981 A JP 9033981A JP S57206292 A JPS57206292 A JP S57206292A
Authority
JP
Japan
Prior art keywords
amplifier
motor
braking
driving
reset state
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.)
Pending
Application number
JP56090339A
Other languages
Japanese (ja)
Inventor
Yasuharu Tamura
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
Fuji Electric Manufacturing 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, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP56090339A priority Critical patent/JPS57206292A/en
Publication of JPS57206292A publication Critical patent/JPS57206292A/en
Pending 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
    • H02P27/045—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 whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
    • 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
    • H02P27/16—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 ac to ac converters without intermediate conversion to dc

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To stabilize the operation of the titled motor by a method wherein driving-side and braking-side arithmetic operational amplifiers are provided independently, and when either of them is in an operational mode, the other amplifier is brought into a reset state, thereby enabling to prevent the change-over due to the instantaneous change of signal caused by disturbance and the like. CONSTITUTION:A speed setting signal and the signal of a tachometer generator 4 are compared by a head amplifier 22, the result of the above is given to the driving-side PI amplifier 23, and at the same time, the above is given to the braking-side PI amplifier 25 through the intermediary of a polarity inverter 24, the turn-on of a thyristor 10 is controlled through the intermediaries of pulse generators 6 and 8 respectively, and the motor 3 is controlled for variable speeds. At this time, the driving side and the braking side PI amplifiers 23 and 25 are connected thruogh the intermediary of a diode 49, the braking PI amplifier 25 is placed in a reset state while the motor 3 is in operation, and the driving-side PI amplifier 23 is put in a reset state while the motor is braked. Accordingly, a switching operation can be performed accurately even when there exists disturbance and the like, and a stabilized operation without a hunting can also be performed on the motor.
JP56090339A 1981-06-10 1981-06-10 Controlling device for variable speed motor Pending JPS57206292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56090339A JPS57206292A (en) 1981-06-10 1981-06-10 Controlling device for variable speed motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56090339A JPS57206292A (en) 1981-06-10 1981-06-10 Controlling device for variable speed motor

Publications (1)

Publication Number Publication Date
JPS57206292A true JPS57206292A (en) 1982-12-17

Family

ID=13995755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56090339A Pending JPS57206292A (en) 1981-06-10 1981-06-10 Controlling device for variable speed motor

Country Status (1)

Country Link
JP (1) JPS57206292A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000766A1 (en) * 1984-07-10 1986-01-30 Fanuc Ltd Method of and apparatus for controlling a synchronous motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000766A1 (en) * 1984-07-10 1986-01-30 Fanuc Ltd Method of and apparatus for controlling a synchronous motor

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