JPS5755772A - Positive and negative switching method of power converter - Google Patents

Positive and negative switching method of power converter

Info

Publication number
JPS5755772A
JPS5755772A JP13213180A JP13213180A JPS5755772A JP S5755772 A JPS5755772 A JP S5755772A JP 13213180 A JP13213180 A JP 13213180A JP 13213180 A JP13213180 A JP 13213180A JP S5755772 A JPS5755772 A JP S5755772A
Authority
JP
Japan
Prior art keywords
negative
phase
positive
turned
voltage
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
JP13213180A
Other languages
Japanese (ja)
Inventor
Hiroshi Uchino
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 JP13213180A priority Critical patent/JPS5755772A/en
Publication of JPS5755772A publication Critical patent/JPS5755772A/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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/443—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/45—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only

Abstract

PURPOSE:To perform safe positive and negative switching, by a method wherein a positive thyristor bridge is turned off and a negative thyristor bridge is also turned on by a phase going the voltage of the turned on element to negative at the final stage for the other phase voltage. CONSTITUTION:An AC power source 1 is applied to thyristor bridges 3A, 3B through a transformer 2 and the power is supplied to a load 4. And the signal in an output current detection circuit 6 consisting of a current detector 7 and a current polarity detector 8 is fed into a firing control circuit 9 together with a phase detection circuit 12, a phase control signal 10, and a switching signal 11 to control the commutation phase of the bridges 3A, 3B and after turning off the positive bridge 3A, a firing pulse is fed into the negative bridge 3B by the phase going the voltage of the turned on element to negative at a final stage for the other phase voltage. Therefore, safe and sure positive and negative switching can be performed with a slight zero current period without causing power source short-circuit loop.
JP13213180A 1980-09-22 1980-09-22 Positive and negative switching method of power converter Pending JPS5755772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13213180A JPS5755772A (en) 1980-09-22 1980-09-22 Positive and negative switching method of power converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13213180A JPS5755772A (en) 1980-09-22 1980-09-22 Positive and negative switching method of power converter

Publications (1)

Publication Number Publication Date
JPS5755772A true JPS5755772A (en) 1982-04-02

Family

ID=15074106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13213180A Pending JPS5755772A (en) 1980-09-22 1980-09-22 Positive and negative switching method of power converter

Country Status (1)

Country Link
JP (1) JPS5755772A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819612A (en) * 1986-05-08 1989-04-11 Asahi Kasei Kogyo Kabushiki Kaisha Self-heating container
FR2624671A1 (en) * 1987-12-09 1989-06-16 Merlin Gerin DEVICE FOR CONTROLLING A STATIC SWITCH
FR2644948A1 (en) * 1989-03-23 1990-09-28 Electricite De France Electric circuit for converting energy

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819612A (en) * 1986-05-08 1989-04-11 Asahi Kasei Kogyo Kabushiki Kaisha Self-heating container
FR2624671A1 (en) * 1987-12-09 1989-06-16 Merlin Gerin DEVICE FOR CONTROLLING A STATIC SWITCH
FR2644948A1 (en) * 1989-03-23 1990-09-28 Electricite De France Electric circuit for converting energy

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