JPS5641784A - Controlling device for induction motor - Google Patents

Controlling device for induction motor

Info

Publication number
JPS5641784A
JPS5641784A JP11569079A JP11569079A JPS5641784A JP S5641784 A JPS5641784 A JP S5641784A JP 11569079 A JP11569079 A JP 11569079A JP 11569079 A JP11569079 A JP 11569079A JP S5641784 A JPS5641784 A JP S5641784A
Authority
JP
Japan
Prior art keywords
induction motor
output
running
speed
polarity
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
JP11569079A
Other languages
Japanese (ja)
Other versions
JPS591076B2 (en
Inventor
Chihiro Okatsuchi
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 JP54115690A priority Critical patent/JPS591076B2/en
Publication of JPS5641784A publication Critical patent/JPS5641784A/en
Publication of JPS591076B2 publication Critical patent/JPS591076B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors

Abstract

PURPOSE:To prevent the excessive running in the reverse direction at deceleration by employing a speed sensor utilizing a one-phase pulse generator which does not sense the direction an AC tachogenerator, and realizing four-quadrant running of the induction motor. CONSTITUTION:In the case a speed setter 6 having two polarities is employed, the speed reference is converted into the one-way voltage V2 by an absolute-value converter 20. The output V1 of the speed reference setter is supplied to a polarity identifying unit 30, where the polarity is identified. Then, a logic 40 is added, and a forward running signal F is obtained. The output of the polarity identifying unit 30 is connected to the circuits of SR, F, and R in the figure as a reverse running signal R. Thus, an induction motor can be run in the forward and reverse directions at the speed reference having two polarities. If the output of an AC tachogeneator is rectified and used instead of a pulse generator, a frequency-voltage converter can be omitted.
JP54115690A 1979-09-11 1979-09-11 Induction motor control device Expired JPS591076B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54115690A JPS591076B2 (en) 1979-09-11 1979-09-11 Induction motor control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54115690A JPS591076B2 (en) 1979-09-11 1979-09-11 Induction motor control device

Publications (2)

Publication Number Publication Date
JPS5641784A true JPS5641784A (en) 1981-04-18
JPS591076B2 JPS591076B2 (en) 1984-01-10

Family

ID=14668829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54115690A Expired JPS591076B2 (en) 1979-09-11 1979-09-11 Induction motor control device

Country Status (1)

Country Link
JP (1) JPS591076B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0469347A2 (en) * 1990-07-31 1992-02-05 Mitsubishi Denki Kabushiki Kaisha Apparatus for reversibly controlling a motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0469347A2 (en) * 1990-07-31 1992-02-05 Mitsubishi Denki Kabushiki Kaisha Apparatus for reversibly controlling a motor

Also Published As

Publication number Publication date
JPS591076B2 (en) 1984-01-10

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