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JPS5716588A - Speed controlling method for motor - Google Patents

Speed controlling method for motor

Info

Publication number
JPS5716588A
JPS5716588A JP9060680A JP9060680A JPS5716588A JP S5716588 A JPS5716588 A JP S5716588A JP 9060680 A JP9060680 A JP 9060680A JP 9060680 A JP9060680 A JP 9060680A JP S5716588 A JPS5716588 A JP S5716588A
Authority
JP
Japan
Prior art keywords
motor
circuit
decelerating
accelerating
drooping
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
JP9060680A
Other languages
Japanese (ja)
Other versions
JPS6327952B2 (en
Inventor
Shinya Tanifuji
Yasuo Morooka
Itsuo Shimizu
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 JP9060680A priority Critical patent/JPS5716588A/en
Publication of JPS5716588A publication Critical patent/JPS5716588A/en
Publication of JPS6327952B2 publication Critical patent/JPS6327952B2/ja
Granted 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
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • 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
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/04—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors by means of a separate brake
    • H02P29/045—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors by means of a separate brake whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE:To stably operate a motor even at a decelerating time by detecting an accelerating or decelerating current component, subtracting the component by the main circuit of the motor, and feeding back the load current component of the motor thus obtained. CONSTITUTION:A primary delay differentiating circuit 10 and a gain multiplier 11 are added to the conventional circuit having a motor controlling circuit 1, a field voltage coefficient unit 2, a motor torque transmitter 4, and a drooping circuit 4. A motor load current is detected or calculted, a contant is multiplied by the obtained load current, and the product thus obtained is fed back to a rotating speed command value, and the speed of the motor is controlled. Since the drooping compensation can be performed without affect of the accelerating or decelerating current even when the drooping constant is different at every motor or an entirely different accelerating or decelerating current flows though a plurality of motors in this manner, it can suppress the variation of the tension occurred at the rolled material or strip steel plate.
JP9060680A 1980-07-04 1980-07-04 Speed controlling method for motor Granted JPS5716588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9060680A JPS5716588A (en) 1980-07-04 1980-07-04 Speed controlling method for motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9060680A JPS5716588A (en) 1980-07-04 1980-07-04 Speed controlling method for motor

Publications (2)

Publication Number Publication Date
JPS5716588A true JPS5716588A (en) 1982-01-28
JPS6327952B2 JPS6327952B2 (en) 1988-06-06

Family

ID=14003128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9060680A Granted JPS5716588A (en) 1980-07-04 1980-07-04 Speed controlling method for motor

Country Status (1)

Country Link
JP (1) JPS5716588A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63194588A (en) * 1987-02-04 1988-08-11 Fuji Electric Co Ltd Controller for motor equipped with current regulator
JP2012086024A (en) * 2004-11-04 2012-05-10 Resmed Ltd Using motor speed in pap device to estimate flow

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497709A (en) * 1972-05-11 1974-01-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497709A (en) * 1972-05-11 1974-01-23

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63194588A (en) * 1987-02-04 1988-08-11 Fuji Electric Co Ltd Controller for motor equipped with current regulator
JP2012086024A (en) * 2004-11-04 2012-05-10 Resmed Ltd Using motor speed in pap device to estimate flow
US10626876B2 (en) 2004-11-04 2020-04-21 ResMed Pty Ltd Using motor speed in a PAP device to estimate flow

Also Published As

Publication number Publication date
JPS6327952B2 (en) 1988-06-06

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