JPS5674090A - Control device for induction motor - Google Patents

Control device for induction motor

Info

Publication number
JPS5674090A
JPS5674090A JP14893479A JP14893479A JPS5674090A JP S5674090 A JPS5674090 A JP S5674090A JP 14893479 A JP14893479 A JP 14893479A JP 14893479 A JP14893479 A JP 14893479A JP S5674090 A JPS5674090 A JP S5674090A
Authority
JP
Japan
Prior art keywords
current component
instructing
signal
circuit
current
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
JP14893479A
Other languages
Japanese (ja)
Other versions
JPS6333391B2 (en
Inventor
Hiroshi Nagase
Toshiaki Okuyama
Yuzuru Kubota
Katsunori Suzuki
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 JP14893479A priority Critical patent/JPS5674090A/en
Publication of JPS5674090A publication Critical patent/JPS5674090A/en
Publication of JPS6333391B2 publication Critical patent/JPS6333391B2/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
    • H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
    • H02P27/026—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Abstract

PURPOSE:To hold the torque and the voltage of the induction motor at predetermined values by controlling the instructing values for the secondary current component and exciting current component to become coincident always to the actual values. CONSTITUTION:There is provided a current pattern circuit 11' for producing an AC signal for instructing a primary instantaneous value in response to the output signals from current control circuits 16, 17 with the output signal from an oscillator 10' as a reference. There are also provided a current component detector circuit 15 for detecting the secondary current component I2f of the primary current and the exciting current component Imf of the induction machine 3, a current control circuit 16 operating in response to the deviation between the signal I2p for instructing the secondary current component with the output signal of the speed control circuit 6 and the secondary current component I2f detected by the circuit 15, and a current control circuit 17 operating in response to the deviation between the output signal Imp of the exciting current instructing circuit 7 and the exciting current component Imf detected by the circuit 15. Thus, the current is always controlled so that the secondary current component instructing signal is coincident to the detection signal and the exciting current component instructing signal to the detection signal.
JP14893479A 1979-11-19 1979-11-19 Control device for induction motor Granted JPS5674090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14893479A JPS5674090A (en) 1979-11-19 1979-11-19 Control device for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14893479A JPS5674090A (en) 1979-11-19 1979-11-19 Control device for induction motor

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP61265508A Division JPS62163588A (en) 1986-11-10 1986-11-10 Controller for induction motor

Publications (2)

Publication Number Publication Date
JPS5674090A true JPS5674090A (en) 1981-06-19
JPS6333391B2 JPS6333391B2 (en) 1988-07-05

Family

ID=15463920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14893479A Granted JPS5674090A (en) 1979-11-19 1979-11-19 Control device for induction motor

Country Status (1)

Country Link
JP (1) JPS5674090A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62268363A (en) * 1986-05-12 1987-11-20 Mitsubishi Electric Corp Controller of cycloconverter of non-circulation current system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0657093U (en) * 1993-01-08 1994-08-05 三木プーリ株式会社 Control unit for multiple motors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313127A (en) * 1976-07-22 1978-02-06 Toshiba Corp Controller for induction motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313127A (en) * 1976-07-22 1978-02-06 Toshiba Corp Controller for induction motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62268363A (en) * 1986-05-12 1987-11-20 Mitsubishi Electric Corp Controller of cycloconverter of non-circulation current system

Also Published As

Publication number Publication date
JPS6333391B2 (en) 1988-07-05

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