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JPS56121386A - Speed controlling device of dc motor - Google Patents

Speed controlling device of dc motor

Info

Publication number
JPS56121386A
JPS56121386A JP2226080A JP2226080A JPS56121386A JP S56121386 A JPS56121386 A JP S56121386A JP 2226080 A JP2226080 A JP 2226080A JP 2226080 A JP2226080 A JP 2226080A JP S56121386 A JPS56121386 A JP S56121386A
Authority
JP
Japan
Prior art keywords
circuit
drooping
current
speed
armature
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
JP2226080A
Other languages
Japanese (ja)
Inventor
Kunio Sekiguchi
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 JP2226080A priority Critical patent/JPS56121386A/en
Publication of JPS56121386A publication Critical patent/JPS56121386A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/46—Roll speed or drive motor control
    • 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
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current

Landscapes

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

Abstract

PURPOSE:To obtain a drooping function effective to a fluctuation of a load torque without loosing a speed balance of each stand even at acclerating and decelerating by a method wherein only a load current value is fed in the drooping circuit formed in a speed control circuit. CONSTITUTION:A drooping amount operating circuit 15 is formed outside the speed controlling device of the DC motor 2 having a current control loop and a speed control loop. A load current arithmetic unit 2a is provided on the preceeding stage of the drooping amount operating circuit 15, a calculation value Ia of an acceleration- deceleration current obtained by feeding an armature voltage VS as an input to a simulation circuit 9a of a transfer function of an armature circuit is sabtracted from a detection value I of an armature current to feed only a calculation value I corresponding to the load current as an input to the drooping amount operating circuit 15. Whereby a working precision can be increased without the speed balance being loast by rolling stands respectively having motors.
JP2226080A 1980-02-26 1980-02-26 Speed controlling device of dc motor Pending JPS56121386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2226080A JPS56121386A (en) 1980-02-26 1980-02-26 Speed controlling device of dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2226080A JPS56121386A (en) 1980-02-26 1980-02-26 Speed controlling device of dc motor

Publications (1)

Publication Number Publication Date
JPS56121386A true JPS56121386A (en) 1981-09-24

Family

ID=12077794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2226080A Pending JPS56121386A (en) 1980-02-26 1980-02-26 Speed controlling device of dc motor

Country Status (1)

Country Link
JP (1) JPS56121386A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945012A (en) * 1982-09-06 1984-03-13 Kawasaki Steel Corp Method for controlling speed-drooping rate in tandem rolling mill
JP2013220465A (en) * 2012-04-19 2013-10-28 Toshiba Mitsubishi-Electric Industrial System Corp Control device for rolling mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945012A (en) * 1982-09-06 1984-03-13 Kawasaki Steel Corp Method for controlling speed-drooping rate in tandem rolling mill
JP2013220465A (en) * 2012-04-19 2013-10-28 Toshiba Mitsubishi-Electric Industrial System Corp Control device for rolling mill

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