JPS54147416A - Controller for induction motor - Google Patents

Controller for induction motor

Info

Publication number
JPS54147416A
JPS54147416A JP5593778A JP5593778A JPS54147416A JP S54147416 A JPS54147416 A JP S54147416A JP 5593778 A JP5593778 A JP 5593778A JP 5593778 A JP5593778 A JP 5593778A JP S54147416 A JPS54147416 A JP S54147416A
Authority
JP
Japan
Prior art keywords
secondary resistance
circuit
value
magnetic flux
induction motor
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
JP5593778A
Other languages
Japanese (ja)
Other versions
JPS6159071B2 (en
Inventor
Katsu Maekawa
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
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5593778A priority Critical patent/JPS54147416A/en
Publication of JPS54147416A publication Critical patent/JPS54147416A/en
Publication of JPS6159071B2 publication Critical patent/JPS6159071B2/ja
Granted legal-status Critical Current

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  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To optimize the preset value of the secondary resistance in the instantaneous reference computing circuit for the primary current through a good speed and magnetic flux control by following thereof to the genuine secondary resistance value of the induction motor.
CONSTITUTION: When an induction motor 2 is controlled employing a sine wave cyclo converter, the primary voltage and current of a motor 2 is detected and impressed on a secondary resistance R2 correction circuit 34 through 3-phase-2-phase convertion circuits 3 and 32. In the circuit 34, a secondary magnetic flux 2 is detected based on the w-phase signal and the output of a relative value computing circuit 14 and is compared with the result from the computation by a instantaneous reference computing circuit 18-2 whereby the value of the secondary resistance R2 set for the circuit 18-2 is controlled to make the magnetic flux computed equal to that detected. This enables change is the set value in the computation circtuit to match changes in the secondary resistance due to temperature change or the like.
COPYRIGHT: (C)1979,JPO&Japio
JP5593778A 1978-05-11 1978-05-11 Controller for induction motor Granted JPS54147416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5593778A JPS54147416A (en) 1978-05-11 1978-05-11 Controller for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5593778A JPS54147416A (en) 1978-05-11 1978-05-11 Controller for induction motor

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP14285785A Division JPS6139889A (en) 1985-06-29 1985-06-29 Controller of induction motor

Publications (2)

Publication Number Publication Date
JPS54147416A true JPS54147416A (en) 1979-11-17
JPS6159071B2 JPS6159071B2 (en) 1986-12-15

Family

ID=13012979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5593778A Granted JPS54147416A (en) 1978-05-11 1978-05-11 Controller for induction motor

Country Status (1)

Country Link
JP (1) JPS54147416A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720189A (en) * 1980-07-09 1982-02-02 Hitachi Ltd Controller for induction motor
JPS5780284A (en) * 1980-11-05 1982-05-19 Toshiba Corp Controller for torque of induction motor
JPS60261382A (en) * 1984-06-07 1985-12-24 Mitsubishi Electric Corp Controller of elevator
US4629035A (en) * 1984-05-02 1986-12-16 Mitsubishi Denki Kabushiki Kaisha Speed control apparatus for elevator
US5581254A (en) * 1994-03-30 1996-12-03 Burr-Brown Corporation Electric motor control chip and method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720189A (en) * 1980-07-09 1982-02-02 Hitachi Ltd Controller for induction motor
JPH0213555B2 (en) * 1980-07-09 1990-04-04 Hitachi Ltd
JPS5780284A (en) * 1980-11-05 1982-05-19 Toshiba Corp Controller for torque of induction motor
JPH035158B2 (en) * 1980-11-05 1991-01-24 Tokyo Shibaura Electric Co
US4629035A (en) * 1984-05-02 1986-12-16 Mitsubishi Denki Kabushiki Kaisha Speed control apparatus for elevator
JPS60261382A (en) * 1984-06-07 1985-12-24 Mitsubishi Electric Corp Controller of elevator
US4677361A (en) * 1984-06-07 1987-06-30 Mitsubishi Denki Kabushiki Kaisha Apparatus for operating an elevator
US5581254A (en) * 1994-03-30 1996-12-03 Burr-Brown Corporation Electric motor control chip and method

Also Published As

Publication number Publication date
JPS6159071B2 (en) 1986-12-15

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