JPS55160991A - Control system for induction motor - Google Patents

Control system for induction motor

Info

Publication number
JPS55160991A
JPS55160991A JP6770179A JP6770179A JPS55160991A JP S55160991 A JPS55160991 A JP S55160991A JP 6770179 A JP6770179 A JP 6770179A JP 6770179 A JP6770179 A JP 6770179A JP S55160991 A JPS55160991 A JP S55160991A
Authority
JP
Japan
Prior art keywords
slip
secondary current
control loop
frequency
value
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
JP6770179A
Other languages
Japanese (ja)
Other versions
JPS6031195B2 (en
Inventor
Seiji Nakazawa
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.)
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha 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 Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Electric Manufacturing Co Ltd
Priority to JP54067701A priority Critical patent/JPS6031195B2/en
Publication of JPS55160991A publication Critical patent/JPS55160991A/en
Publication of JPS6031195B2 publication Critical patent/JPS6031195B2/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
    • H02P27/06—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

Landscapes

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

Abstract

PURPOSE:To improve the controlling properties and to dispense with installation of a tachometer generator, by detecting the speed of revolution from a primary voltage frequency signal and equalizing the response speeds of the secondary current control loop and the slip frequency control loop to each other. CONSTITUTION:The detected output voltage value of a power inverter 3, a detected primary current value and a primary voltage frequency signal are applied to the slip angular frequency calculation circuit 22. Set values for the secondary current and the slip frequency are obtained from the difference between the primary voltage frequency signal and the set value. In the secondary current control loop, the secondary current is calculated by the seconary current calculation circuit 25 to control a power rectifier 1 through a phase regulator 28. In the slip frequency control loop, the power inverter 3 is controlled through a distributor 11 on the basis of the slip frequency value calculated by the circuit 22. As a result, the ratio of the secondary current to the slip angular frequency can be kept constant even in a transient state. Controlling properties are thus improved.
JP54067701A 1979-05-30 1979-05-30 Control method of induction motor Expired JPS6031195B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54067701A JPS6031195B2 (en) 1979-05-30 1979-05-30 Control method of induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54067701A JPS6031195B2 (en) 1979-05-30 1979-05-30 Control method of induction motor

Publications (2)

Publication Number Publication Date
JPS55160991A true JPS55160991A (en) 1980-12-15
JPS6031195B2 JPS6031195B2 (en) 1985-07-20

Family

ID=13352514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54067701A Expired JPS6031195B2 (en) 1979-05-30 1979-05-30 Control method of induction motor

Country Status (1)

Country Link
JP (1) JPS6031195B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6318986A (en) * 1986-07-10 1988-01-26 Nissan Motor Co Ltd Controller for induction motor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767970A (en) * 1986-12-22 1988-08-30 Ampex Corporation Dynamic brake control for a tape drive system
JPH01209970A (en) * 1988-02-15 1989-08-23 Sankyo Seiki Mfg Co Ltd Dynamic braking device for motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6318986A (en) * 1986-07-10 1988-01-26 Nissan Motor Co Ltd Controller for induction motor

Also Published As

Publication number Publication date
JPS6031195B2 (en) 1985-07-20

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