JPS55117482A - Controlling device for inverter - Google Patents

Controlling device for inverter

Info

Publication number
JPS55117482A
JPS55117482A JP2198479A JP2198479A JPS55117482A JP S55117482 A JPS55117482 A JP S55117482A JP 2198479 A JP2198479 A JP 2198479A JP 2198479 A JP2198479 A JP 2198479A JP S55117482 A JPS55117482 A JP S55117482A
Authority
JP
Japan
Prior art keywords
current
slip frequency
subtractor
inverter
maintain
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
JP2198479A
Other languages
Japanese (ja)
Inventor
Masakazu Kobata
Ichiro Miyashita
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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP2198479A priority Critical patent/JPS55117482A/en
Publication of JPS55117482A publication Critical patent/JPS55117482A/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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/08—Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency

Landscapes

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

Abstract

PURPOSE:To operate an inverter stably by controlling a slip frequency against an increase in an exciting current due to the fluctuation of power source or load or the saturation of an iron core. CONSTITUTION:A motor current Im detected by a current detector 7 and an electric current Io set by a current setter 9 are subjected to operation by a subtractor 8. An output signal from the subtractor 8 is sent to an amplifier 10, in which a slip frequency signal es is generated to maintain the set current Io. A slip frequency fs is set such as to maintain the motor current Im at a constant level, so that stable characteristics can be obtained.
JP2198479A 1979-02-28 1979-02-28 Controlling device for inverter Pending JPS55117482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2198479A JPS55117482A (en) 1979-02-28 1979-02-28 Controlling device for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2198479A JPS55117482A (en) 1979-02-28 1979-02-28 Controlling device for inverter

Publications (1)

Publication Number Publication Date
JPS55117482A true JPS55117482A (en) 1980-09-09

Family

ID=12070281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2198479A Pending JPS55117482A (en) 1979-02-28 1979-02-28 Controlling device for inverter

Country Status (1)

Country Link
JP (1) JPS55117482A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60210188A (en) * 1983-12-30 1985-10-22 コルモーゲン　コーポレイション Slip control system of induction motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251521A (en) * 1975-10-23 1977-04-25 Meidensha Electric Mfg Co Ltd Induction motor driving controlling circuit
JPS5395221A (en) * 1977-01-31 1978-08-21 Mitsubishi Electric Corp Control circuit induction motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251521A (en) * 1975-10-23 1977-04-25 Meidensha Electric Mfg Co Ltd Induction motor driving controlling circuit
JPS5395221A (en) * 1977-01-31 1978-08-21 Mitsubishi Electric Corp Control circuit induction motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60210188A (en) * 1983-12-30 1985-10-22 コルモーゲン　コーポレイション Slip control system of induction motor

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