JPS6450783A - Controller for induction motor - Google Patents

Controller for induction motor

Info

Publication number
JPS6450783A
JPS6450783A JP62205930A JP20593087A JPS6450783A JP S6450783 A JPS6450783 A JP S6450783A JP 62205930 A JP62205930 A JP 62205930A JP 20593087 A JP20593087 A JP 20593087A JP S6450783 A JPS6450783 A JP S6450783A
Authority
JP
Japan
Prior art keywords
current
voltage
arithmetic circuit
motor
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
JP62205930A
Other languages
Japanese (ja)
Other versions
JP2689434B2 (en
Inventor
Masayuki Terajima
Tadashi Ashikaga
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 JP62205930A priority Critical patent/JP2689434B2/en
Publication of JPS6450783A publication Critical patent/JPS6450783A/en
Application granted granted Critical
Publication of JP2689434B2 publication Critical patent/JP2689434B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To need no detection of primary current and execute non-interference control excellent in responsiveness, by finding the primary current of a motor necessary for non-interference processing, through arithmetic operation. CONSTITUTION:By the regulation of voltage ebeta' with an arithmetic circuit 15, voltage e1 is turned into a waveform modulated with the period(60 deg.) of a vector, and then, current is set to be constant, and the torque pulsating of a motor 7 is suppressed. Then, current i1alpha, i1beta, or the like necessary for non-interference processing in arithmetic circuits 13, 14 is found by a voltage arithmetic circuit 18, a current arithmetic circuit 19, and a converter circuit 20. By the voltage arithmetic circuit 18, alpha-phase voltage e1alpha is found from the primary voltage e1. To the current arithmetic circuit 19, the input of the alpha-phase voltage e1alpha, the current command e1beta', power angular-frequency omega0, and rotor angular- frequency omegar is provided, and from these signals and motor constant, the primary current i1alpha, i1beta is found. Accordingly, the non-interference processing for needing no detection of the primary current of the motor 7 on finding the primary current i1alpha, i1beta can be executed.
JP62205930A 1987-08-19 1987-08-19 Induction motor control device Expired - Fee Related JP2689434B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62205930A JP2689434B2 (en) 1987-08-19 1987-08-19 Induction motor control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62205930A JP2689434B2 (en) 1987-08-19 1987-08-19 Induction motor control device

Publications (2)

Publication Number Publication Date
JPS6450783A true JPS6450783A (en) 1989-02-27
JP2689434B2 JP2689434B2 (en) 1997-12-10

Family

ID=16515093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62205930A Expired - Fee Related JP2689434B2 (en) 1987-08-19 1987-08-19 Induction motor control device

Country Status (1)

Country Link
JP (1) JP2689434B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60237880A (en) * 1984-05-11 1985-11-26 Drive Syst Kk Speed control pam type inverter of 3-phase induction motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60237880A (en) * 1984-05-11 1985-11-26 Drive Syst Kk Speed control pam type inverter of 3-phase induction motor

Also Published As

Publication number Publication date
JP2689434B2 (en) 1997-12-10

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Legal Events

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