JPS57145592A - Variable speed control device for ac motor - Google Patents

Variable speed control device for ac motor

Info

Publication number
JPS57145592A
JPS57145592A JP3059081A JP3059081A JPS57145592A JP S57145592 A JPS57145592 A JP S57145592A JP 3059081 A JP3059081 A JP 3059081A JP 3059081 A JP3059081 A JP 3059081A JP S57145592 A JPS57145592 A JP S57145592A
Authority
JP
Japan
Prior art keywords
current
angle
torque current
torque
output
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
JP3059081A
Other languages
Japanese (ja)
Other versions
JPS6038956B2 (en
Inventor
Masahiro Minamoto
Takao Yanase
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 JP56030590A priority Critical patent/JPS6038956B2/en
Publication of JPS57145592A publication Critical patent/JPS57145592A/en
Publication of JPS6038956B2 publication Critical patent/JPS6038956B2/en
Expired 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
    • H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency

Landscapes

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

Abstract

PURPOSE:To perform high-performance operation for an AC motor at a wide speed range by providing a torque current controller generating an adjusting output so that the difference between the actual value and the command value of a torque current component may become zero. CONSTITUTION:A torque current controlling circuit S is composed of a vector rotary machine 40 operating the actual value iT of torque current for output, a torque current controller 39 adjusting a current angle to averagely zero the deviation between a torque current command value iT and an adding point 42 adding the output in the said controller 39 to an angle control loop (the control section of an inverter 11). And the functions are to povide angle bias for compensating the lag of an actual current angle epsilon against a current angle command epsilon* caused by the lag of inverter commutation and to perform current PWM operation preventing a decrease in the stability of control resulting from a wide commutation interval at low speed and irregular rotation by lower torque pulsation.
JP56030590A 1981-03-05 1981-03-05 Variable speed control device for AC motor Expired JPS6038956B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56030590A JPS6038956B2 (en) 1981-03-05 1981-03-05 Variable speed control device for AC motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56030590A JPS6038956B2 (en) 1981-03-05 1981-03-05 Variable speed control device for AC motor

Publications (2)

Publication Number Publication Date
JPS57145592A true JPS57145592A (en) 1982-09-08
JPS6038956B2 JPS6038956B2 (en) 1985-09-03

Family

ID=12308075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56030590A Expired JPS6038956B2 (en) 1981-03-05 1981-03-05 Variable speed control device for AC motor

Country Status (1)

Country Link
JP (1) JPS6038956B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59226682A (en) * 1983-06-02 1984-12-19 Fuji Electric Co Ltd Current vector phase detecting system
JPS60125187A (en) * 1983-12-07 1985-07-04 Fuji Electric Co Ltd Control system of ac motor
JPS6489988A (en) * 1987-09-29 1989-04-05 Toshiba Corp Induction machine controller
JPH01186188A (en) * 1988-01-20 1989-07-25 Toshiba Corp Controller for induction machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03292430A (en) * 1990-04-09 1991-12-24 Jdc Corp Viscous damper and earthquake-proof system which has viscous damper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59226682A (en) * 1983-06-02 1984-12-19 Fuji Electric Co Ltd Current vector phase detecting system
JPS60125187A (en) * 1983-12-07 1985-07-04 Fuji Electric Co Ltd Control system of ac motor
JPS6489988A (en) * 1987-09-29 1989-04-05 Toshiba Corp Induction machine controller
JPH0570395B2 (en) * 1987-09-29 1993-10-05 Tokyo Shibaura Electric Co
JPH01186188A (en) * 1988-01-20 1989-07-25 Toshiba Corp Controller for induction machine

Also Published As

Publication number Publication date
JPS6038956B2 (en) 1985-09-03

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