JPS55162875A - Thyristor converting device - Google Patents

Thyristor converting device

Info

Publication number
JPS55162875A
JPS55162875A JP7005679A JP7005679A JPS55162875A JP S55162875 A JPS55162875 A JP S55162875A JP 7005679 A JP7005679 A JP 7005679A JP 7005679 A JP7005679 A JP 7005679A JP S55162875 A JPS55162875 A JP S55162875A
Authority
JP
Japan
Prior art keywords
optical
thyristor
optical fibers
control unit
signal
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
JP7005679A
Other languages
Japanese (ja)
Inventor
Takashi Kano
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 JP7005679A priority Critical patent/JPS55162875A/en
Publication of JPS55162875A publication Critical patent/JPS55162875A/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
    • H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
    • H02M1/096—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices the power supply of the control circuit being connected in parallel to the main switching element

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To prevent an optical thyristor from being broken, by connecting together optical fibers extended from a control unit and optical fibers extended from forward voltage protecting circuit so as to limit a total number of the optical fibers in use to the smallest possible level. CONSTITUTION:An optical firing signal from a control unit 2 is sent to gates of optical thyristors LS1-LS2 through an optical fiber Y-X. While a thyristor converting device is operated, a certain thyristor is in some cases turned off due to an abnormal phenomenon. In order to turn on the thyristor immediately in such a case, a forward overvoltage protecting circuit D corresponding to the thyristor is energized to send an optical firing signal through an optical fiber Z-Y. This structure, as compared with a structure wherein a refiring signal is sent from the control unit 2, permits reducing the number of optical fibers and preventing, owing to quick generation of a refiring signal, the thyristors from being broken. Furthermore, the joint portion X of the optical fibers can be kept airtight easily.
JP7005679A 1979-06-06 1979-06-06 Thyristor converting device Pending JPS55162875A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7005679A JPS55162875A (en) 1979-06-06 1979-06-06 Thyristor converting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7005679A JPS55162875A (en) 1979-06-06 1979-06-06 Thyristor converting device

Publications (1)

Publication Number Publication Date
JPS55162875A true JPS55162875A (en) 1980-12-18

Family

ID=13420504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7005679A Pending JPS55162875A (en) 1979-06-06 1979-06-06 Thyristor converting device

Country Status (1)

Country Link
JP (1) JPS55162875A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073461A2 (en) * 1981-09-01 1983-03-09 Fuji Electric Co. Ltd. Overvoltage protection for an optically controlled thyristor
JPS58154367A (en) * 1982-03-05 1983-09-13 Toshiba Corp Optical gate signal generator for thyristor converter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073461A2 (en) * 1981-09-01 1983-03-09 Fuji Electric Co. Ltd. Overvoltage protection for an optically controlled thyristor
EP0073461A3 (en) * 1981-09-01 1984-01-11 Fuji Electric Co. Ltd. Overvoltage protection for an optically controlled thyristor
JPS58154367A (en) * 1982-03-05 1983-09-13 Toshiba Corp Optical gate signal generator for thyristor converter
EP0088411A2 (en) * 1982-03-05 1983-09-14 Kabushiki Kaisha Toshiba Optical gate signal generating apparatus and thyristor converter apparatus including the same
US4489372A (en) * 1982-03-05 1984-12-18 Tokyo Shibaura Denki Kabushiki Kaisha Optical gate signal generating apparatus and thyristor converter apparatus including the same

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