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JPS57173393A - Approximate constant output controller for synchronous motor - Google Patents

Approximate constant output controller for synchronous motor

Info

Publication number
JPS57173393A
JPS57173393A JP56057591A JP5759181A JPS57173393A JP S57173393 A JPS57173393 A JP S57173393A JP 56057591 A JP56057591 A JP 56057591A JP 5759181 A JP5759181 A JP 5759181A JP S57173393 A JPS57173393 A JP S57173393A
Authority
JP
Japan
Prior art keywords
calculator
phase
output
current
inputted
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
JP56057591A
Other languages
Japanese (ja)
Inventor
Akira Kawamura
Tadahiro Ono
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.)
TOEI DENKI SEISAKUSHO KK
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
TOEI DENKI SEISAKUSHO KK
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 Toshiba Machine Co Ltd, TOEI DENKI SEISAKUSHO KK filed Critical Toshiba Machine Co Ltd
Priority to JP56057591A priority Critical patent/JPS57173393A/en
Publication of JPS57173393A publication Critical patent/JPS57173393A/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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/022—Synchronous motors
    • H02P25/024—Synchronous motors controlled by supply frequency

Landscapes

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

Abstract

PURPOSE:To practically obtain the prescribed output from a synchronous motor at a rotating speed higher than the rated rotating speed by controlling the magnitude of an armature current, its phse and torque angle to satisfy the specific relation. CONSTITUTION:An addition unit 6 outputs a difference between a speed signal representing the angular speed of a rotary magnetic field and a speed command signal to a frequency signal generator 7, and the output fro the generator 7 is inputted together with the output of a synchronous motor characteristic value memory 8 to a torque angle calculator 9. The outputs of the calculator 9 and the memory 8 are inputted to Id, Iq calculator 10, which calculates the magnitude of the armature current I. A 3- phase converter 1 produces 3-phase current command of an armature coil. The output of the calculator 9 and the output signals of the calculator 10 and a magnetic field position signal forming unit 15 are inputted to a current phase calculator 13, which calculates the phase difference between the induced electromotive force and the armature current. The outputs of the calculator 13 and a 3-phase converter 11 are inputted to a 3-phase current controlled power source 12, which brakes the magnitude and the phase of the armature current.
JP56057591A 1981-04-16 1981-04-16 Approximate constant output controller for synchronous motor Pending JPS57173393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56057591A JPS57173393A (en) 1981-04-16 1981-04-16 Approximate constant output controller for synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56057591A JPS57173393A (en) 1981-04-16 1981-04-16 Approximate constant output controller for synchronous motor

Publications (1)

Publication Number Publication Date
JPS57173393A true JPS57173393A (en) 1982-10-25

Family

ID=13060085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56057591A Pending JPS57173393A (en) 1981-04-16 1981-04-16 Approximate constant output controller for synchronous motor

Country Status (1)

Country Link
JP (1) JPS57173393A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01129796A (en) * 1987-11-14 1989-05-23 Hitachi Elevator Eng & Service Co Ltd Controller for permanent magnet synchronous motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01129796A (en) * 1987-11-14 1989-05-23 Hitachi Elevator Eng & Service Co Ltd Controller for permanent magnet synchronous motor
JP2645655B2 (en) * 1987-11-14 1997-08-25 株式会社日立ビルシステム Control device for permanent magnet synchronous motor

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