JPS6028782A - Controller of induction motor - Google Patents

Controller of induction motor

Info

Publication number
JPS6028782A
JPS6028782A JP58135215A JP13521583A JPS6028782A JP S6028782 A JPS6028782 A JP S6028782A JP 58135215 A JP58135215 A JP 58135215A JP 13521583 A JP13521583 A JP 13521583A JP S6028782 A JPS6028782 A JP S6028782A
Authority
JP
Japan
Prior art keywords
speed
chopper
current
outputs
difference
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
JP58135215A
Other languages
Japanese (ja)
Inventor
Katsutaro Kuge
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
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 filed Critical Toshiba Corp
Priority to JP58135215A priority Critical patent/JPS6028782A/en
Publication of JPS6028782A publication Critical patent/JPS6028782A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/24Variable impedance in stator or rotor circuit
    • H02P25/26Variable impedance in stator or rotor circuit with arrangements for controlling secondary impedance

Abstract

PURPOSE:To improve the controlling performance by varying the chopper frequency of a chopper for shortcircuiting the secondary rectified output in response to the slip frequency of a motor. CONSTITUTION:A speed control amplifier 34 outputs a current reference I* in response to the difference between a speed reference NP and a speed feedback signal N, and a current control amplifier 38 outputs the difference V1 between a current reference I* and a current feedback signal I. On the other hand, an operational amplifier 53 outputs the difference between a synchronizing speed N0 and a speed signal N, i.e., a slip corresponding signal VS, which is converted to a triangular wave V2 proportional to the slip. A chopper controller 44 controls a chopper 3 by the pulse signal of the pulse width proportional to the magnitude of the voltage V1. Thus, sufficient secondary current can be flowed in all range of the speed.
JP58135215A 1983-07-26 1983-07-26 Controller of induction motor Pending JPS6028782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58135215A JPS6028782A (en) 1983-07-26 1983-07-26 Controller of induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58135215A JPS6028782A (en) 1983-07-26 1983-07-26 Controller of induction motor

Publications (1)

Publication Number Publication Date
JPS6028782A true JPS6028782A (en) 1985-02-13

Family

ID=15146522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58135215A Pending JPS6028782A (en) 1983-07-26 1983-07-26 Controller of induction motor

Country Status (1)

Country Link
JP (1) JPS6028782A (en)

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