JPS57132791A - Control system for induction motor - Google Patents

Control system for induction motor

Info

Publication number
JPS57132791A
JPS57132791A JP56212285A JP21228581A JPS57132791A JP S57132791 A JPS57132791 A JP S57132791A JP 56212285 A JP56212285 A JP 56212285A JP 21228581 A JP21228581 A JP 21228581A JP S57132791 A JPS57132791 A JP S57132791A
Authority
JP
Japan
Prior art keywords
frequency
instructing
high speed
motor
control
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
JP56212285A
Other languages
Japanese (ja)
Other versions
JPS6310672B2 (en
Inventor
Masahiko Akamatsu
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 JP56212285A priority Critical patent/JPS57132791A/en
Publication of JPS57132791A publication Critical patent/JPS57132791A/en
Publication of JPS6310672B2 publication Critical patent/JPS6310672B2/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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/06—Rotor flux based control involving the use of rotor position or rotor speed sensors
    • H02P21/08—Indirect field-oriented control; Rotor flux feed-forward control
    • H02P21/09—Field phase angle calculation based on rotor voltage equation by adding slip frequency and speed proportional frequency

Landscapes

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

Abstract

PURPOSE:To stably control an induction motor by energizing the motor having shortcircuited secondary conductor from a variable frequency power source controlled in vector in response to the instructed torque value and lowering the component correspondig to the exciting current in a high speed range. CONSTITUTION:The primary coil of a squirrel cage induction motor 10 is energized by a variable frequency power source 60. AC vector control means 100 controls the current value, phase value and frequency of the energizing AC current. Frequency instructing means 120 decides primary frequency from the rotating frequency and the instruction value of slip frequency instructing means 500. Speed controlling means 600 compares the instructing speed with the output of rotating speed detecting means 20 to instruct the amount corresponding to the desired torque. Further, function generators 210, 220 are provided in the control means 100 to set as prescribed, and polyphase AC generator 150 is operated to linearly control it. Further, instructing means 650 for generating a signal which lowers the component corresponding to the exciting current is provided in the high speed range of the motor 10, thereby preventing the unstable control system in the high speed range.
JP56212285A 1981-12-25 1981-12-25 Control system for induction motor Granted JPS57132791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56212285A JPS57132791A (en) 1981-12-25 1981-12-25 Control system for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56212285A JPS57132791A (en) 1981-12-25 1981-12-25 Control system for induction motor

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP1036977A Division JPS5396423A (en) 1977-02-01 1977-02-01 Control system for induction motor

Publications (2)

Publication Number Publication Date
JPS57132791A true JPS57132791A (en) 1982-08-17
JPS6310672B2 JPS6310672B2 (en) 1988-03-08

Family

ID=16620063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56212285A Granted JPS57132791A (en) 1981-12-25 1981-12-25 Control system for induction motor

Country Status (1)

Country Link
JP (1) JPS57132791A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59162792A (en) * 1983-03-07 1984-09-13 Toshiba Mach Co Ltd Drive control system of induction motor
JPS60194778A (en) * 1984-03-13 1985-10-03 Meidensha Electric Mfg Co Ltd Vector control system of induction motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59162792A (en) * 1983-03-07 1984-09-13 Toshiba Mach Co Ltd Drive control system of induction motor
JPH0347073B2 (en) * 1983-03-07 1991-07-18 Toshiba Machine Co Ltd
JPS60194778A (en) * 1984-03-13 1985-10-03 Meidensha Electric Mfg Co Ltd Vector control system of induction motor

Also Published As

Publication number Publication date
JPS6310672B2 (en) 1988-03-08

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