JPS57177288A - Control system for synchronous motor - Google Patents

Control system for synchronous motor

Info

Publication number
JPS57177288A
JPS57177288A JP56060329A JP6032981A JPS57177288A JP S57177288 A JPS57177288 A JP S57177288A JP 56060329 A JP56060329 A JP 56060329A JP 6032981 A JP6032981 A JP 6032981A JP S57177288 A JPS57177288 A JP S57177288A
Authority
JP
Japan
Prior art keywords
phase
synchronous motor
current
voltage
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
JP56060329A
Other languages
Japanese (ja)
Inventor
Hiroshi Ishida
Shinji Seki
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
Fujitsu Fanuc 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 Fanuc Corp, Fujitsu Fanuc Ltd filed Critical Fanuc Corp
Priority to JP56060329A priority Critical patent/JPS57177288A/en
Publication of JPS57177288A publication Critical patent/JPS57177288A/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)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To enable drive control equivalent to a DC motor by detecting the phase of the induced electromotive voltage of a synchronous motor, generating a current command having this phase and applying the current command to the armature coil of the synchronous motor. CONSTITUTION:A deviation ER between a speed command voltage VCMD and the actual speed voltage TSA of a synchronous motor 101 is calculated by an arithmetic circuit 106, an amplitude corresponding signal of an armature current is inputted to arithmetic circuits 108, 109 through an error amplifier 107, is multiplied by the position signals sin theta', cos theta' of field poles through a resolver 102, a synchronous rectifier 103 and a phase leading circuit 104, and 3-phase current commands Iu-Iw of the same phases as the induced voltage can be obtained through 2-phase/3-phase converter 11. The difference from the actual phase currents Iau-Iaw are calculated by arithmetic circuits 111U-111W, the difference signals are inputted to a pulse width modulator 115 through current amplifiers 114U-114W, and are converted into inverter drive signal.
JP56060329A 1981-04-21 1981-04-21 Control system for synchronous motor Pending JPS57177288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56060329A JPS57177288A (en) 1981-04-21 1981-04-21 Control system for synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56060329A JPS57177288A (en) 1981-04-21 1981-04-21 Control system for synchronous motor

Publications (1)

Publication Number Publication Date
JPS57177288A true JPS57177288A (en) 1982-10-30

Family

ID=13139015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56060329A Pending JPS57177288A (en) 1981-04-21 1981-04-21 Control system for synchronous motor

Country Status (1)

Country Link
JP (1) JPS57177288A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002619A1 (en) * 1982-12-29 1984-07-05 Fanuc Ltd System for controlling synchronous motor
JPS59136088A (en) * 1983-01-21 1984-08-04 Hitachi Ltd Speed controller of brushless motor
WO1984003596A1 (en) * 1983-03-03 1984-09-13 Fanuc Ltd Method of controlling synchronous motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002619A1 (en) * 1982-12-29 1984-07-05 Fanuc Ltd System for controlling synchronous motor
JPS59136088A (en) * 1983-01-21 1984-08-04 Hitachi Ltd Speed controller of brushless motor
JPH0574315B2 (en) * 1983-01-21 1993-10-18 Hitachi Ltd
WO1984003596A1 (en) * 1983-03-03 1984-09-13 Fanuc Ltd Method of controlling synchronous motor
JPS59162794A (en) * 1983-03-03 1984-09-13 Fanuc Ltd Control system of synchronous motor

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