JPS57166890A - Driving system for induction motor - Google Patents

Driving system for induction motor

Info

Publication number
JPS57166890A
JPS57166890A JP56050151A JP5015181A JPS57166890A JP S57166890 A JPS57166890 A JP S57166890A JP 56050151 A JP56050151 A JP 56050151A JP 5015181 A JP5015181 A JP 5015181A JP S57166890 A JPS57166890 A JP S57166890A
Authority
JP
Japan
Prior art keywords
phase
arithmetic circuit
current
current commands
actual
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
JP56050151A
Other languages
Japanese (ja)
Inventor
Hiroshi Ishida
Yoshimoto Fujioka
Naoto Oota
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 JP56050151A priority Critical patent/JPS57166890A/en
Publication of JPS57166890A publication Critical patent/JPS57166890A/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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation

Landscapes

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

Abstract

PURPOSE:To prevent the generation of vibration by a method wherein a digital process is applied to a signal and actual speed corresponding to speed deviation to generate the first and second phase sine wave signals and furthermore, the third-phase phase current is generated so that the sum of the current commands of U phase, V phase, and W phase may become zero. CONSTITUTION:A current command generating section 31 cotaining a microcomputer performs a digital process for a signal and actual speed corresponding to speed deviation and generates two-phase current commands IU, IV out of U phase, V phase, and W phase. The current command i2 is fed from the arithmetic circuit 32. Three-phase current commands IU, IV are supplied to an arithmetic circuit 32. A W-phase current commands iu, iv, iw are compared with actual phase currents iua, iva detected by converters 13, 14 and the output in an arithmetic circuit 15 respectively and a transistor inverter 17 is driven in accordance with the error.
JP56050151A 1981-04-03 1981-04-03 Driving system for induction motor Pending JPS57166890A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56050151A JPS57166890A (en) 1981-04-03 1981-04-03 Driving system for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56050151A JPS57166890A (en) 1981-04-03 1981-04-03 Driving system for induction motor

Publications (1)

Publication Number Publication Date
JPS57166890A true JPS57166890A (en) 1982-10-14

Family

ID=12851177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56050151A Pending JPS57166890A (en) 1981-04-03 1981-04-03 Driving system for induction motor

Country Status (1)

Country Link
JP (1) JPS57166890A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105930A1 (en) * 1982-04-22 1984-04-25 Fanuc Ltd. Induction motor driving device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497726A (en) * 1978-01-18 1979-08-02 Toshiba Machine Co Ltd Torque control apparatus for induction motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497726A (en) * 1978-01-18 1979-08-02 Toshiba Machine Co Ltd Torque control apparatus for induction motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105930A1 (en) * 1982-04-22 1984-04-25 Fanuc Ltd. Induction motor driving device

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