JPS58175995A - Protecting circuit for inverter motor - Google Patents

Protecting circuit for inverter motor

Info

Publication number
JPS58175995A
JPS58175995A JP57055411A JP5541182A JPS58175995A JP S58175995 A JPS58175995 A JP S58175995A JP 57055411 A JP57055411 A JP 57055411A JP 5541182 A JP5541182 A JP 5541182A JP S58175995 A JPS58175995 A JP S58175995A
Authority
JP
Japan
Prior art keywords
motor
reverse rotation
inverter
inverter motor
protecting circuit
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
JP57055411A
Other languages
Japanese (ja)
Inventor
Takashi Kawamoto
Kenichi Hironaka
Kenji Nakamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57055411A priority Critical patent/JPS58175995A/en
Publication of JPS58175995A publication Critical patent/JPS58175995A/en
Pending 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
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
    • H02P3/20—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by reversal of phase sequence of connections to the motor

Abstract

PURPOSE:To prevent an inverter motor from burning out by braking the motor in the reverse rotation when the motor is energized in the reverse rotation. CONSTITUTION:When an inverter motor 1 is rotated reversely to the normal rotating direction, the reverse rotation of the motor 1 is detected by the overcurrent detector (23-31) of the inverter. Simultaneously the drive frequency of the motor 1 is clamped to the prescribed value by a clamper, and the time for energizing the motor 1 is controlled in response to the speed of reverse rotation. Thus, the lower voltage is applied to the motor, thereby gradually increasing the control operation, and thereby preventing the motor from burning out.
JP57055411A 1982-04-05 1982-04-05 Protecting circuit for inverter motor Pending JPS58175995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57055411A JPS58175995A (en) 1982-04-05 1982-04-05 Protecting circuit for inverter motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57055411A JPS58175995A (en) 1982-04-05 1982-04-05 Protecting circuit for inverter motor

Publications (1)

Publication Number Publication Date
JPS58175995A true JPS58175995A (en) 1983-10-15

Family

ID=12997811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57055411A Pending JPS58175995A (en) 1982-04-05 1982-04-05 Protecting circuit for inverter motor

Country Status (1)

Country Link
JP (1) JPS58175995A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60207472A (en) * 1984-03-31 1985-10-19 Toshiba Corp Operating method of inverter for driving ac motor
JPS6369490A (en) * 1986-09-05 1988-03-29 Sharp Corp Air conditioner
CN104734577A (en) * 2013-12-24 2015-06-24 日本电产高科电机株式会社 Motor driving device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60207472A (en) * 1984-03-31 1985-10-19 Toshiba Corp Operating method of inverter for driving ac motor
JPS6369490A (en) * 1986-09-05 1988-03-29 Sharp Corp Air conditioner
CN104734577A (en) * 2013-12-24 2015-06-24 日本电产高科电机株式会社 Motor driving device
JP2015122883A (en) * 2013-12-24 2015-07-02 日本電産テクノモータ株式会社 Motor drive device
CN104734577B (en) * 2013-12-24 2018-10-16 日本电产高科电机株式会社 Motor drive

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