JPS5797382A - Controlling device for induction motor - Google Patents

Controlling device for induction motor

Info

Publication number
JPS5797382A
JPS5797382A JP17093180A JP17093180A JPS5797382A JP S5797382 A JPS5797382 A JP S5797382A JP 17093180 A JP17093180 A JP 17093180A JP 17093180 A JP17093180 A JP 17093180A JP S5797382 A JPS5797382 A JP S5797382A
Authority
JP
Japan
Prior art keywords
current
phase
value
induction motor
frequency
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.)
Granted
Application number
JP17093180A
Other languages
Japanese (ja)
Other versions
JPS6412194B2 (en
Inventor
Hiroshi Nagase
Toshiaki Okuyama
Yuzuru Kubota
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP17093180A priority Critical patent/JPS5797382A/en
Publication of JPS5797382A publication Critical patent/JPS5797382A/en
Publication of JPS6412194B2 publication Critical patent/JPS6412194B2/ja
Granted 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/048—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using AC supply for only the rotor circuit or only the stator circuit
    • 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
    • H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
    • H02P2207/01—Asynchronous machines
    • 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency

Landscapes

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

Abstract

PURPOSE:To prevent the overvoltage of an induction motor and the deterioration of the response of its torque by obtaining an exciting current instructing value from the deviation between the calculated magnetic flux value obtained from a signal proportional to the exciting current and the instructed magnetic flux value. CONSTITUTION:The torque currenc command signal It* from a speed controlling circuit 18 and the exciting current command signal Im* from a deviation amplifier 2 are applied to a circuit 21, which in turns outputs the primary current command value of an induction motor 15. The DC voltage of a power converter 12 is so controlled via a current detector 22, a current controlling circuit 23 and an automatic pulse phase shifter 24 that the DC current becomes proportional to the instructed value. On the other hand, the frequency of the primary current is provided by the addition of a slip frequency determined by a divider 26 and the rotating frequency proportional to the actual speed value of a tachometer generator 16 by an adder 27. The phase of a current is determined by the oscillation signal of an oscillator 28 as a reference. The automatic pulse shifter 30 ignites the thyristor of an inverter 14 at the phase being caluculated by a phase command circuit 29 in accordance with the output frequency of the oscillator 28, and supplies currents to each phase of an induction motor 15.
JP17093180A 1980-12-05 1980-12-05 Controlling device for induction motor Granted JPS5797382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17093180A JPS5797382A (en) 1980-12-05 1980-12-05 Controlling device for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17093180A JPS5797382A (en) 1980-12-05 1980-12-05 Controlling device for induction motor

Publications (2)

Publication Number Publication Date
JPS5797382A true JPS5797382A (en) 1982-06-17
JPS6412194B2 JPS6412194B2 (en) 1989-02-28

Family

ID=15914011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17093180A Granted JPS5797382A (en) 1980-12-05 1980-12-05 Controlling device for induction motor

Country Status (1)

Country Link
JP (1) JPS5797382A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61132093A (en) * 1984-11-30 1986-06-19 Shinko Electric Co Ltd Method of controlling induction motor
JP2009113911A (en) * 2007-11-06 2009-05-28 Yaskawa Electric Corp Winding-rewinding device and its control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61132093A (en) * 1984-11-30 1986-06-19 Shinko Electric Co Ltd Method of controlling induction motor
JP2009113911A (en) * 2007-11-06 2009-05-28 Yaskawa Electric Corp Winding-rewinding device and its control method

Also Published As

Publication number Publication date
JPS6412194B2 (en) 1989-02-28

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