JPS5762771A - Electric power conversion device - Google Patents

Electric power conversion device

Info

Publication number
JPS5762771A
JPS5762771A JP55136586A JP13658680A JPS5762771A JP S5762771 A JPS5762771 A JP S5762771A JP 55136586 A JP55136586 A JP 55136586A JP 13658680 A JP13658680 A JP 13658680A JP S5762771 A JPS5762771 A JP S5762771A
Authority
JP
Japan
Prior art keywords
feedback
power source
thyristors
parallel
gto
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.)
Granted
Application number
JP55136586A
Other languages
Japanese (ja)
Other versions
JPS6310647B2 (en
Inventor
Keiichiro Yanagida
Takamasa Kanzaki
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 JP55136586A priority Critical patent/JPS5762771A/en
Publication of JPS5762771A publication Critical patent/JPS5762771A/en
Publication of JPS6310647B2 publication Critical patent/JPS6310647B2/ja
Granted 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
    • H02M1/32—Means for protecting converters other than automatic disconnection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Thyristor Switches And Gates (AREA)
  • Protection Of Static Devices (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To feedback energy and improve efficiency by connecting a surge absorbing circuit in parallel with GTO (gate turn off) thyristors that are connected in parallel and connecting a converter for feedback and a diode for feedback between the surge absorbing circuit and the electric power source. CONSTITUTION:CTO thyristors 19a and 19b are connected in parallel through a reactor 18 for balancer, and they are connected to a power source 21 through a reactor 20. Furthermore, to the CTO thyristors 19a and 19b surge absorbing circuits 24a, 25a, 25b are respectively connected in parallel, and converters for feedback, 26a, 26b, and diodes for feedback, 27a and 27b are connected between each surge circuit and the power source, and at the time the intermediate taps of the converters for feedback 26a and 26b are connected to the power source 21. In this arrangement, balance of electric current is improved when the GTO thyristors are operated in parallel, and the energy of the surge absorbing circuits with the GTO thyristors on is fed back to the power source by the converters for feedback, and with the GTO thyristors off the energy accumulated in the reactor 20 is fed back to the power source with the result of raised efficiency.
JP55136586A 1980-09-30 1980-09-30 Electric power conversion device Granted JPS5762771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55136586A JPS5762771A (en) 1980-09-30 1980-09-30 Electric power conversion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55136586A JPS5762771A (en) 1980-09-30 1980-09-30 Electric power conversion device

Publications (2)

Publication Number Publication Date
JPS5762771A true JPS5762771A (en) 1982-04-15
JPS6310647B2 JPS6310647B2 (en) 1988-03-08

Family

ID=15178741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55136586A Granted JPS5762771A (en) 1980-09-30 1980-09-30 Electric power conversion device

Country Status (1)

Country Link
JP (1) JPS5762771A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250894A (en) * 1986-04-22 1987-10-31 Mitsubishi Electric Corp Induction motor drive device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250894A (en) * 1986-04-22 1987-10-31 Mitsubishi Electric Corp Induction motor drive device

Also Published As

Publication number Publication date
JPS6310647B2 (en) 1988-03-08

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