JPS566690A - Controller for induction motor - Google Patents

Controller for induction motor

Info

Publication number
JPS566690A
JPS566690A JP7914079A JP7914079A JPS566690A JP S566690 A JPS566690 A JP S566690A JP 7914079 A JP7914079 A JP 7914079A JP 7914079 A JP7914079 A JP 7914079A JP S566690 A JPS566690 A JP S566690A
Authority
JP
Japan
Prior art keywords
current
command
signal
amplified
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
JP7914079A
Other languages
Japanese (ja)
Inventor
Ichiro Miyashita
Takashi Sano
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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP7914079A priority Critical patent/JPS566690A/en
Publication of JPS566690A publication Critical patent/JPS566690A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To simplify a control system and heighten its reliability, by controlling a primary current ineffective component and a primary current effective component independently of each other. CONSTITUTION:The difference between a magnetism-resisting current command and a signal proportional to an ineffective current supplied from an ineffective current detection circuit is determined by a calculator 3. A signal corresponding to the difference is amplified by an amplifier 4. The amplified signal is applied to a comparator 6 which determines the output voltage of a pulse width modulation inverter 12. An effective current command and a primary current effective component are compared with each other by a calculator 23. A signal corresponding to the difference between the command and the component is amplified by a current deviation amplifier 24 so that the signal becomes a substantial slip frequency command. This command is added to the output signal of a speed detector 15 by an adder 25. The sum is applied to an oscillator 26.
JP7914079A 1979-06-25 1979-06-25 Controller for induction motor Pending JPS566690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7914079A JPS566690A (en) 1979-06-25 1979-06-25 Controller for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7914079A JPS566690A (en) 1979-06-25 1979-06-25 Controller for induction motor

Publications (1)

Publication Number Publication Date
JPS566690A true JPS566690A (en) 1981-01-23

Family

ID=13681647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7914079A Pending JPS566690A (en) 1979-06-25 1979-06-25 Controller for induction motor

Country Status (1)

Country Link
JP (1) JPS566690A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077698A (en) * 1983-10-05 1985-05-02 Toshiba Corp Controlling method of motor controller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257928A (en) * 1975-10-14 1977-05-12 Gen Electric Constant torque induction motor controller
JPS5445729A (en) * 1977-09-19 1979-04-11 Toshiba Corp Controlling induction motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257928A (en) * 1975-10-14 1977-05-12 Gen Electric Constant torque induction motor controller
JPS5445729A (en) * 1977-09-19 1979-04-11 Toshiba Corp Controlling induction motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077698A (en) * 1983-10-05 1985-05-02 Toshiba Corp Controlling method of motor controller
JPH0527360B2 (en) * 1983-10-05 1993-04-20 Tokyo Shibaura Electric Co

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