JPS5653572A - Gate pulse generating method for thyristor converter - Google Patents

Gate pulse generating method for thyristor converter

Info

Publication number
JPS5653572A
JPS5653572A JP12699779A JP12699779A JPS5653572A JP S5653572 A JPS5653572 A JP S5653572A JP 12699779 A JP12699779 A JP 12699779A JP 12699779 A JP12699779 A JP 12699779A JP S5653572 A JPS5653572 A JP S5653572A
Authority
JP
Japan
Prior art keywords
forward voltage
thyristor
signal
circuit
detected
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
JP12699779A
Other languages
Japanese (ja)
Inventor
Hidetoshi Ino
Tadashi Takahashi
Atsuo Kobayashi
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 JP12699779A priority Critical patent/JPS5653572A/en
Publication of JPS5653572A publication Critical patent/JPS5653572A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To supply a gate pulse to all thyristors in a module and to prevent breakage of the thyristors by a method wherein each forward voltage signal sent from a forward voltage detecting circuit provided in thyristor modules is processed by an ''or'' circuit. CONSTITUTION:Valve 1 is consisted of a plurality of thyristor modules 2, forward voltage photosignals detected by a light emitting element 8 of a module 2 is inputted to an ''or'' circuit 13 from an amplifier 12 as forward voltage signals (a1)- (a3) and an intensive forward voltage signal (b) are outputted. These signals are compared with a gate controlling signal (c) and when a forward voltage is detected within the period of time of the signal (c), a gate command (d) is outputted, and a narrow gate pulse signal (e) is generated by a command (d) at a pulse circuit 16. Thus, when the thyristor is turned off, for example, by an interrupted current in a valve voltage waveform (A) or (B), the turned off thyristor is reignited by a detected forward voltage signal (a3) and the breakage of the thyristor due to overage of withstand voltage of forward direction can be prevented.
JP12699779A 1979-10-02 1979-10-02 Gate pulse generating method for thyristor converter Pending JPS5653572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12699779A JPS5653572A (en) 1979-10-02 1979-10-02 Gate pulse generating method for thyristor converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12699779A JPS5653572A (en) 1979-10-02 1979-10-02 Gate pulse generating method for thyristor converter

Publications (1)

Publication Number Publication Date
JPS5653572A true JPS5653572A (en) 1981-05-13

Family

ID=14949104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12699779A Pending JPS5653572A (en) 1979-10-02 1979-10-02 Gate pulse generating method for thyristor converter

Country Status (1)

Country Link
JP (1) JPS5653572A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151864A (en) * 1982-03-02 1983-09-09 Toshiba Corp Thyristor converter
US5434772A (en) * 1992-06-15 1995-07-18 Kabushiki Kaisha Toshiba Control device for thyristor converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151864A (en) * 1982-03-02 1983-09-09 Toshiba Corp Thyristor converter
US5434772A (en) * 1992-06-15 1995-07-18 Kabushiki Kaisha Toshiba Control device for thyristor converter

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