JPS6450781A - Controller for induction motor - Google Patents

Controller for induction motor

Info

Publication number
JPS6450781A
JPS6450781A JP62205927A JP20592787A JPS6450781A JP S6450781 A JPS6450781 A JP S6450781A JP 62205927 A JP62205927 A JP 62205927A JP 20592787 A JP20592787 A JP 20592787A JP S6450781 A JPS6450781 A JP S6450781A
Authority
JP
Japan
Prior art keywords
voltage
e1beta
magnetic flux
current
primary
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
JP62205927A
Other languages
Japanese (ja)
Other versions
JPH0832199B2 (en
Inventor
Kohei Onishi
Masayuki Terajima
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 JP62205927A priority Critical patent/JPH0832199B2/en
Publication of JPS6450781A publication Critical patent/JPS6450781A/en
Publication of JPH0832199B2 publication Critical patent/JPH0832199B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To suppress the unstable phenomemon of a magnetic flux level and set responsiveness constant regardless of a rotational speed, by making the maximum value ratio of alpha-phase primary-voltage e1alpha larger as beta-phase primary- voltage e1beta is made less. CONSTITUTION:By the regulation of voltage e1beta' with an arithmetic circuit 17, voltage e1 is turned into a waveform modulated with the period (60 deg.) of a voltage vector, and then, current i1beta is set constant, and the torque pulsating of a motor 7 is controlled. Then, by voltage correction for making the maximum value ratio of primary voltage e1alpha with the specification of a range, larger as primary voltage e1beta is made 3 less, the unstable phenomenon of a magnetic flux level is suppressed. Besides, the output side of a speed controlling amplifier 9 is provided with a gain regulating circuit 20, and based in a dividing result between a magnetic flux level estimate lambda2alpha' and a set value lambda2alpha, which is found from current i1alpha and an induction machine constant, current i1beta' is corrected, and the positive gain of a control system is set constant, and responsiveness is set constant regardless of a rotational speed.
JP62205927A 1987-08-19 1987-08-19 Induction motor controller Expired - Fee Related JPH0832199B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62205927A JPH0832199B2 (en) 1987-08-19 1987-08-19 Induction motor controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62205927A JPH0832199B2 (en) 1987-08-19 1987-08-19 Induction motor controller

Publications (2)

Publication Number Publication Date
JPS6450781A true JPS6450781A (en) 1989-02-27
JPH0832199B2 JPH0832199B2 (en) 1996-03-27

Family

ID=16515043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62205927A Expired - Fee Related JPH0832199B2 (en) 1987-08-19 1987-08-19 Induction motor controller

Country Status (1)

Country Link
JP (1) JPH0832199B2 (en)

Also Published As

Publication number Publication date
JPH0832199B2 (en) 1996-03-27

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees