JPS59103589A - Controller for power converter - Google Patents

Controller for power converter

Info

Publication number
JPS59103589A
JPS59103589A JP57209366A JP20936682A JPS59103589A JP S59103589 A JPS59103589 A JP S59103589A JP 57209366 A JP57209366 A JP 57209366A JP 20936682 A JP20936682 A JP 20936682A JP S59103589 A JPS59103589 A JP S59103589A
Authority
JP
Japan
Prior art keywords
voltage
speed deviation
becomes
deltas
signal
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
JP57209366A
Other languages
Japanese (ja)
Other versions
JPH0341023B2 (en
Inventor
Toshiaki Okuyama
Itsuo Shimizu
Makoto Hirokawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57209366A priority Critical patent/JPH0341023B2/ja
Publication of JPS59103589A publication Critical patent/JPS59103589A/en
Publication of JPH0341023B2 publication Critical patent/JPH0341023B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H02P23/07—Polyphase or monophase asynchronous induction motors

Abstract

PURPOSE:To prevent a power converter from becoming an overvoltage or insufficient voltage by setting the magnitude of a DC current to a value immediately before becoming the specified value when the DC voltage becomes larger by the specified value than the set value, thereby reducing the variation in the torque. CONSTITUTION:When a regenerative current becomes the DC input current or higher of a converter. A switch circuit 9 becomes OFF, and a speed deviation signal DELTAS which has been added to the input of a speed deviation amplifier 10 so far is interrupted. Since the amplifier 10 has an integrating item, it outputs a torque command signal taup immediately before the speed deviation DELTAS becomes zero even when the speed deviation DELTAS becomes zero. When switched from the regeneration to the motor drive operation, the DC voltage V0 decreases, a signal of high level is outputted from a comparator 28, and a switch circuit 9 is set to OFF state. Accordingly, the DC voltage is prevented from decreasing similarly to the regeneration time.
JP57209366A 1982-12-01 1982-12-01 Expired - Lifetime JPH0341023B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57209366A JPH0341023B2 (en) 1982-12-01 1982-12-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57209366A JPH0341023B2 (en) 1982-12-01 1982-12-01

Publications (2)

Publication Number Publication Date
JPS59103589A true JPS59103589A (en) 1984-06-15
JPH0341023B2 JPH0341023B2 (en) 1991-06-20

Family

ID=16571744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57209366A Expired - Lifetime JPH0341023B2 (en) 1982-12-01 1982-12-01

Country Status (1)

Country Link
JP (1) JPH0341023B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61266076A (en) * 1985-05-20 1986-11-25 Allen Bradley Co Current adjustor
JPS63294293A (en) * 1987-05-27 1988-11-30 Hitachi Ltd Inverter control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61266076A (en) * 1985-05-20 1986-11-25 Allen Bradley Co Current adjustor
JPS63294293A (en) * 1987-05-27 1988-11-30 Hitachi Ltd Inverter control device

Also Published As

Publication number Publication date
JPH0341023B2 (en) 1991-06-20

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