JPS57129173A - Power converter - Google Patents

Power converter

Info

Publication number
JPS57129173A
JPS57129173A JP56012765A JP1276581A JPS57129173A JP S57129173 A JPS57129173 A JP S57129173A JP 56012765 A JP56012765 A JP 56012765A JP 1276581 A JP1276581 A JP 1276581A JP S57129173 A JPS57129173 A JP S57129173A
Authority
JP
Japan
Prior art keywords
gto
signal
control signal
load current
gate control
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
JP56012765A
Other languages
Japanese (ja)
Inventor
Ikuo Yasuoka
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 JP56012765A priority Critical patent/JPS57129173A/en
Publication of JPS57129173A publication Critical patent/JPS57129173A/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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/525—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform or frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To prevent the destroy of a GTO by stopping the supply of a gate control signal at the time of an overcurrent defect and breaking a high speed breaker. CONSTITUTION:When a load current exceeds a set protecting value, a level comparator 8 detects it, and the output of the comparator 8 becomes ''L'' level signal from ''H'' level signal. When the output gate control signal of a gate control signal generator 9 is blocked by AND circuits 10, 11, the trip coil 4a of a high speed breaker 4 is energized simultaneously. However, a GTO 5 continues to conduct even if it blocks the ON gate signal, and the load current further increases, but since the breaker 4 is tripped after the prescribed time, the current is thereafter attenuated. Even if the load current exceeds the peak turn-off current at this time, no OFF gate signal is applied to the GTO 5. Accordingly, the GTO is not destroyed.
JP56012765A 1981-01-30 1981-01-30 Power converter Pending JPS57129173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56012765A JPS57129173A (en) 1981-01-30 1981-01-30 Power converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012765A JPS57129173A (en) 1981-01-30 1981-01-30 Power converter

Publications (1)

Publication Number Publication Date
JPS57129173A true JPS57129173A (en) 1982-08-11

Family

ID=11814488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56012765A Pending JPS57129173A (en) 1981-01-30 1981-01-30 Power converter

Country Status (1)

Country Link
JP (1) JPS57129173A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592578A (en) * 1982-06-28 1984-01-09 Hitachi Ltd Power converter
EP0105510A2 (en) * 1982-10-04 1984-04-18 Hitachi, Ltd. Control system for power converter
JPS60245475A (en) * 1984-05-16 1985-12-05 Fuji Electric Co Ltd Protecting device for inverter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592578A (en) * 1982-06-28 1984-01-09 Hitachi Ltd Power converter
JPH0311192B2 (en) * 1982-06-28 1991-02-15 Hitachi Ltd
EP0105510A2 (en) * 1982-10-04 1984-04-18 Hitachi, Ltd. Control system for power converter
JPS60245475A (en) * 1984-05-16 1985-12-05 Fuji Electric Co Ltd Protecting device for inverter

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