JPS5683291A - Speed controller of induction motor - Google Patents

Speed controller of induction motor

Info

Publication number
JPS5683291A
JPS5683291A JP15807079A JP15807079A JPS5683291A JP S5683291 A JPS5683291 A JP S5683291A JP 15807079 A JP15807079 A JP 15807079A JP 15807079 A JP15807079 A JP 15807079A JP S5683291 A JPS5683291 A JP S5683291A
Authority
JP
Japan
Prior art keywords
speed
signal
amplifier
deviation
slip 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
JP15807079A
Other languages
Japanese (ja)
Other versions
JPS6333399B2 (en
Inventor
Toshiaki Okuyama
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 JP15807079A priority Critical patent/JPS5683291A/en
Publication of JPS5683291A publication Critical patent/JPS5683291A/en
Publication of JPS6333399B2 publication Critical patent/JPS6333399B2/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

Landscapes

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

Abstract

PURPOSE:To obtain superior speed response performance by providing a speed controlling circuit consisting of a subtracter for speed detecting purposes, a speed deviation amplifier, and a slip frequency deivation amplifier. CONSTITUTION:In a subtracter 19, a speed signal is detected from the difference between a signal proportionate to a driving frequency f1 which is an input signal of a two-phase oscillator 10 and an output signal of a slip frequency calculating circuit 8. The deviation of the speed signal from the speed instruction is amplified in a speed deviation amplifier 20, and its output is added to an amplifier 21 as a slip frequency instruction. In this case, the speed deviation is sufficiently amplified by the operation of the amplifier 20, so that superior speed response performance can be obtained to control the slip frequency proportionate to the torque of a motor according to the deviation signal.
JP15807079A 1979-12-07 1979-12-07 Speed controller of induction motor Granted JPS5683291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15807079A JPS5683291A (en) 1979-12-07 1979-12-07 Speed controller of induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15807079A JPS5683291A (en) 1979-12-07 1979-12-07 Speed controller of induction motor

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP61288840A Division JPS62171492A (en) 1986-12-05 1986-12-05 Induction motor speed control device
JP61288841A Division JPS62171493A (en) 1986-12-05 1986-12-05 AC motor current detection method

Publications (2)

Publication Number Publication Date
JPS5683291A true JPS5683291A (en) 1981-07-07
JPS6333399B2 JPS6333399B2 (en) 1988-07-05

Family

ID=15663636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15807079A Granted JPS5683291A (en) 1979-12-07 1979-12-07 Speed controller of induction motor

Country Status (1)

Country Link
JP (1) JPS5683291A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118085A (en) * 1983-11-28 1985-06-25 Meidensha Electric Mfg Co Ltd Vector controller of induction motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118085A (en) * 1983-11-28 1985-06-25 Meidensha Electric Mfg Co Ltd Vector controller of induction motor

Also Published As

Publication number Publication date
JPS6333399B2 (en) 1988-07-05

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