JPS5749383A - Controller for induction motor - Google Patents

Controller for induction motor

Info

Publication number
JPS5749383A
JPS5749383A JP55124907A JP12490780A JPS5749383A JP S5749383 A JPS5749383 A JP S5749383A JP 55124907 A JP55124907 A JP 55124907A JP 12490780 A JP12490780 A JP 12490780A JP S5749383 A JPS5749383 A JP S5749383A
Authority
JP
Japan
Prior art keywords
output
change
circuit
voltage control
over circuit
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
JP55124907A
Other languages
Japanese (ja)
Other versions
JPS6014592B2 (en
Inventor
Tadashi Ichioka
Yozo Koike
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing 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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP55124907A priority Critical patent/JPS6014592B2/en
Publication of JPS5749383A publication Critical patent/JPS5749383A/en
Publication of JPS6014592B2 publication Critical patent/JPS6014592B2/en
Expired 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
    • H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
    • H02P27/026—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

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

Abstract

PURPOSE:To reduce the drift to zero by digitally constructing a voltage control generator in a controller for an induction motor. CONSTITUTION:A speed detection pulse of a speed detector 5 is applied to a PLLD comprising a phase difference detection circuit 23, a low pass filter 24, a voltage control generator 25 and a divider 22. The output of the generator 25 is applied to a change-over circuit C through a synchronization circuit 26. On the other hand, the output of an absolute value converter 11 is applied to a voltage control generator 30, the output of which is applied to a change-over circuit C through a synchronization circuit 31. In addition, the output of a slide amplifier 8 is applied to a zero cross comparator 33, the output of which is applied to the change-over circuit. The output of a change-over circuit 36 is applied to an up/down counter 26. When the output of the amplifier 8 is negative, the output of the synchronization circuit 31 is up-counted while being down-counted when it is positive.
JP55124907A 1980-09-09 1980-09-09 Induction motor control device Expired JPS6014592B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55124907A JPS6014592B2 (en) 1980-09-09 1980-09-09 Induction motor control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55124907A JPS6014592B2 (en) 1980-09-09 1980-09-09 Induction motor control device

Publications (2)

Publication Number Publication Date
JPS5749383A true JPS5749383A (en) 1982-03-23
JPS6014592B2 JPS6014592B2 (en) 1985-04-15

Family

ID=14897057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55124907A Expired JPS6014592B2 (en) 1980-09-09 1980-09-09 Induction motor control device

Country Status (1)

Country Link
JP (1) JPS6014592B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122784A (en) * 1984-07-02 1986-01-31 ゼネラル・エレクトリツク・カンパニイ Method and device for controlling phase locked loop of induction motor drive device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122784A (en) * 1984-07-02 1986-01-31 ゼネラル・エレクトリツク・カンパニイ Method and device for controlling phase locked loop of induction motor drive device

Also Published As

Publication number Publication date
JPS6014592B2 (en) 1985-04-15

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