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JPS55157988A - Controlling device for synchronous motor - Google Patents

Controlling device for synchronous motor

Info

Publication number
JPS55157988A
JPS55157988A JP6557679A JP6557679A JPS55157988A JP S55157988 A JPS55157988 A JP S55157988A JP 6557679 A JP6557679 A JP 6557679A JP 6557679 A JP6557679 A JP 6557679A JP S55157988 A JPS55157988 A JP S55157988A
Authority
JP
Japan
Prior art keywords
inverter
voltage
commutation
synchronous motor
phase
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
JP6557679A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Ejima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6557679A priority Critical patent/JPS55157988A/en
Publication of JPS55157988A publication Critical patent/JPS55157988A/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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)

Abstract

PURPOSE:To eliminate a commutation miss by subjecting a condenser of an inverter to initial charging through utilizing a reverse voltage of a synchronous motor to satisfy commutation conditions when changing from commercial operation to inverter operation. CONSTITUTION:When changing operation according to a commercial three-phase AC power 10 to operation according to an inverter 18, a closing preparation command signal 32 is first given to a phase shift circuit 31, and a pulse of a commutation timing pulse command circuit 25 is adjusted to lead from a phase voltage of a synchronous motor 13. After that, an inverter operating breaker 20 is closed. An effect similar to reverse voltage commutation system of a commutatorless motor is then obtainable, and a condenser of the inverter 18 is put in initial charging to satisfy commutation conditions. On the other hand, a DC voltage of the inverter 18 is given to a voltage controlling circuit 30, and a DC voltage of a forward converter 16 is controlled so as not to work excessively.
JP6557679A 1979-05-29 1979-05-29 Controlling device for synchronous motor Pending JPS55157988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6557679A JPS55157988A (en) 1979-05-29 1979-05-29 Controlling device for synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6557679A JPS55157988A (en) 1979-05-29 1979-05-29 Controlling device for synchronous motor

Publications (1)

Publication Number Publication Date
JPS55157988A true JPS55157988A (en) 1980-12-09

Family

ID=13290963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6557679A Pending JPS55157988A (en) 1979-05-29 1979-05-29 Controlling device for synchronous motor

Country Status (1)

Country Link
JP (1) JPS55157988A (en)

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