JPS5698385A - Constant output control device for thyristor motor - Google Patents

Constant output control device for thyristor motor

Info

Publication number
JPS5698385A
JPS5698385A JP11880A JP11880A JPS5698385A JP S5698385 A JPS5698385 A JP S5698385A JP 11880 A JP11880 A JP 11880A JP 11880 A JP11880 A JP 11880A JP S5698385 A JPS5698385 A JP S5698385A
Authority
JP
Japan
Prior art keywords
output
motor
speed
control
generator
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
JP11880A
Other languages
Japanese (ja)
Inventor
Junichi Takahashi
Hiroshi Nagase
Keiji Saito
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 JP11880A priority Critical patent/JPS5698385A/en
Publication of JPS5698385A publication Critical patent/JPS5698385A/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
    • 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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/10—Arrangements for controlling torque ripple, e.g. providing reduced torque ripple

Abstract

PURPOSE:To control stable constant output over entire speed range of the thyristor motor by controlling the interbrush corresponding voltage of a DC machine irrespective of the line speed and reducing the torque ripple of a mechanical system in the low speed range having a resonance point. CONSTITUTION:A variable frequency variable voltage is applied from a power source through thyristor converters 6, 7 to a roll driving motor 3 in a rolling mill under control. A signal from a pilot generator 27 is inputted thereto, the motor rotates in proportion to the speed up to the basic speed omegaB becoming the interbrush corresponding voltage VS of rated DC machine and rotates constantly at above the speed omegaB in the output of a VS command generator 28. The output from the generator 28 is applied to a VS control circuit 29 together with the output from a VS detector 14. Thus, the circuit 29 will control the field of the motor, and the firing pulse of the converter 7 id controlled by a basic leading phase beta0 command arithmetic circuit 31 to which the output of a tension current command arithmetic circuit 30 is applied. Thus, the torque ripple in low speed range can be reduced, and the variation in the tension can be prevented.
JP11880A 1980-01-07 1980-01-07 Constant output control device for thyristor motor Pending JPS5698385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11880A JPS5698385A (en) 1980-01-07 1980-01-07 Constant output control device for thyristor motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11880A JPS5698385A (en) 1980-01-07 1980-01-07 Constant output control device for thyristor motor

Publications (1)

Publication Number Publication Date
JPS5698385A true JPS5698385A (en) 1981-08-07

Family

ID=11465124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11880A Pending JPS5698385A (en) 1980-01-07 1980-01-07 Constant output control device for thyristor motor

Country Status (1)

Country Link
JP (1) JPS5698385A (en)

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