JPS5644397A - Controller for induction motor - Google Patents

Controller for induction motor

Info

Publication number
JPS5644397A
JPS5644397A JP12058279A JP12058279A JPS5644397A JP S5644397 A JPS5644397 A JP S5644397A JP 12058279 A JP12058279 A JP 12058279A JP 12058279 A JP12058279 A JP 12058279A JP S5644397 A JPS5644397 A JP S5644397A
Authority
JP
Japan
Prior art keywords
current
converter
output
difference
frequency
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
JP12058279A
Other languages
Japanese (ja)
Inventor
Yasuhiko Hosokawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12058279A priority Critical patent/JPS5644397A/en
Publication of JPS5644397A publication Critical patent/JPS5644397A/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
    • H02P27/06—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
    • 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
    • H02P2201/00—Indexing scheme relating to controlling arrangements characterised by the converter used
    • H02P2201/03—AC-DC converter stage controlled to provide a defined DC link voltage
    • 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 minimize the speed adjusting time by determining the output of a power inverter with an output from integration of an acceleration signal computed based on a difference between a current reference derived from a difference between the output frequency of the power inverter and a target value. CONSTITUTION:An alternate current is converted into a direct current with the first converter 1 and converted to an alternate current of variable voltage/variable frequency with the second converter 4 to rotate an induction motor 5. A target value is given to the output frequency of the second converter 4 from a frequency command circuit 16 and a current referecnce is generated by a current command circuit 17 based on a difference between the target value and the output frequency. Based on a difference between the current reference and the alternate current of an intermediate current circuit detected by a current detector 13, an acceleration signal is computed by an acceleration controlling circuit 18 and the output voltage from the integration of the acceleration signal with an integrator 19 determines the output frequency of the second converter 4. This enables maximum utilization of the capacity of the converter thereby minimizing the speed adjusting time.
JP12058279A 1979-09-18 1979-09-18 Controller for induction motor Pending JPS5644397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12058279A JPS5644397A (en) 1979-09-18 1979-09-18 Controller for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12058279A JPS5644397A (en) 1979-09-18 1979-09-18 Controller for induction motor

Publications (1)

Publication Number Publication Date
JPS5644397A true JPS5644397A (en) 1981-04-23

Family

ID=14789839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12058279A Pending JPS5644397A (en) 1979-09-18 1979-09-18 Controller for induction motor

Country Status (1)

Country Link
JP (1) JPS5644397A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203072A (en) * 1983-05-04 1984-11-17 三菱電機株式会社 Controller for alternating current elevator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203072A (en) * 1983-05-04 1984-11-17 三菱電機株式会社 Controller for alternating current elevator
JPS6361265B2 (en) * 1983-05-04 1988-11-28

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