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JPS5671478A - Gate interrupting system for thyristor type inverter - Google Patents

Gate interrupting system for thyristor type inverter

Info

Publication number
JPS5671478A
JPS5671478A JP14806979A JP14806979A JPS5671478A JP S5671478 A JPS5671478 A JP S5671478A JP 14806979 A JP14806979 A JP 14806979A JP 14806979 A JP14806979 A JP 14806979A JP S5671478 A JPS5671478 A JP S5671478A
Authority
JP
Japan
Prior art keywords
gate
counter
interlocked
circuit
inverter
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
JP14806979A
Other languages
Japanese (ja)
Inventor
Yoshimoto Tamura
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 JP14806979A priority Critical patent/JPS5671478A/en
Publication of JPS5671478A publication Critical patent/JPS5671478A/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

Landscapes

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

Abstract

PURPOSE:To interrupt the gate in the state that a current flows the thyristor in the inverter for short time by applying a signal having higher frequency than the frequency at normally operating time to a commutation circuit at malfunction occurring time. CONSTITUTION:If a malfunction signal rises, a gate amplifier 11 is interlocked, and the gate signal in the inverter 4 is interrupted. Then, the clock pulse of the ring counter 10 is interlocked, and the ring counter 10 is stopped. When an on-delay timer 19 is counted up, it will produce a counter pulse. Thus, a counter 15 is operated, and will produce a gate signal through a monostable multivibrator circuit 12 and a gate amplifier 13 to a commutation circuit 5. If no output is produced from the circuit 12, the timer 19 is counted up by the output from the inverter 18, and a count pulse is again produced. When the counter 15 is thus freely run and is then counted up, the count pulse is interlocked, the gate amplifier 13 is also interlocked, and the gate signal of the circuit 5 is interrupted.
JP14806979A 1979-11-15 1979-11-15 Gate interrupting system for thyristor type inverter Pending JPS5671478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14806979A JPS5671478A (en) 1979-11-15 1979-11-15 Gate interrupting system for thyristor type inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14806979A JPS5671478A (en) 1979-11-15 1979-11-15 Gate interrupting system for thyristor type inverter

Publications (1)

Publication Number Publication Date
JPS5671478A true JPS5671478A (en) 1981-06-15

Family

ID=15444506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14806979A Pending JPS5671478A (en) 1979-11-15 1979-11-15 Gate interrupting system for thyristor type inverter

Country Status (1)

Country Link
JP (1) JPS5671478A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62272876A (en) * 1986-05-19 1987-11-27 Mitsubishi Electric Corp Inverter equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62272876A (en) * 1986-05-19 1987-11-27 Mitsubishi Electric Corp Inverter equipment

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