JPS57160364A - Controller for gate pulse of thyristor valve - Google Patents

Controller for gate pulse of thyristor valve

Info

Publication number
JPS57160364A
JPS57160364A JP4685581A JP4685581A JPS57160364A JP S57160364 A JPS57160364 A JP S57160364A JP 4685581 A JP4685581 A JP 4685581A JP 4685581 A JP4685581 A JP 4685581A JP S57160364 A JPS57160364 A JP S57160364A
Authority
JP
Japan
Prior art keywords
phase
pulses
value
forwarded
set value
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
JP4685581A
Other languages
Japanese (ja)
Inventor
Junichiro Tsukamoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4685581A priority Critical patent/JPS57160364A/en
Publication of JPS57160364A publication Critical patent/JPS57160364A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H02M1/084—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To control the SCR valve in which adjusting work is not needed by a method wherein the zero points of each phase output wave-form of an AC power supply are detected, oscillating pulses forwarded by the detecting signals are counted, counting value and set value are compared with each other and the gate pulses are forwarded when both value agree. CONSTITUTION:The output pulses of a voltage controlling oscillator 13 are counted by means of a counter 15, and the zero points at every each phase synchronous signal of three-phase AC VR-VT wave-forms functioning as the synchronous power supply are detected by means of a zero point detector 16. The counter 15 is reset by the detecting signals, and starts counting again, the counting value is inputted to a comparator 17 given the digital set value of ignition phase control signals EC and compared with the set value, a distributing circuit 18 is operated by pulses forwarded when both values agree with each other, and gate pulse signals to the SCR valves of each phase are outputted.
JP4685581A 1981-03-27 1981-03-27 Controller for gate pulse of thyristor valve Pending JPS57160364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4685581A JPS57160364A (en) 1981-03-27 1981-03-27 Controller for gate pulse of thyristor valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4685581A JPS57160364A (en) 1981-03-27 1981-03-27 Controller for gate pulse of thyristor valve

Publications (1)

Publication Number Publication Date
JPS57160364A true JPS57160364A (en) 1982-10-02

Family

ID=12758947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4685581A Pending JPS57160364A (en) 1981-03-27 1981-03-27 Controller for gate pulse of thyristor valve

Country Status (1)

Country Link
JP (1) JPS57160364A (en)

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