JPS55157984A - Switching method for power converter - Google Patents

Switching method for power converter

Info

Publication number
JPS55157984A
JPS55157984A JP6638979A JP6638979A JPS55157984A JP S55157984 A JPS55157984 A JP S55157984A JP 6638979 A JP6638979 A JP 6638979A JP 6638979 A JP6638979 A JP 6638979A JP S55157984 A JPS55157984 A JP S55157984A
Authority
JP
Japan
Prior art keywords
bridge
switching
current
thyristor
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
JP6638979A
Other languages
Japanese (ja)
Inventor
Kenichi Otsuka
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 JP6638979A priority Critical patent/JPS55157984A/en
Publication of JPS55157984A publication Critical patent/JPS55157984A/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
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/75—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
    • H02M7/757—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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 secure switching of a power converter in the shortest period of time for current being kept zero by switching upon detecting a voltage having been impressed on a positive side arm and a negative side arm of the other bridge after interrupting gate pulse of one thyristor bridge. CONSTITUTION:When switching from a thyristor bridge 3A to 3B, an output current of the bridge 3A decreases in accordance as a current command value decreases, and when the current command value becomes negative, a current direction command signal 8 changes. When output current of the bridge 3A becomes zero, an output of a microcurrent detection circuit 7 changes, FF10 is reset, and an ignition pulse of the bridge 3A is interrupted. A back pressure is applied on an element of the bridge 3A, and when arm voltage detection circuits 11-16 detect a voltage being applied on a negative side arm of bridge 3B, the bridge 3B is ignited to switching from positive side to negative side. A time whereat an arm voltage of the thyristor rises can be detected, therefore switching can be secured in the shortest period of time for current being kept zero by detecting an instant for the thyristor to come off.
JP6638979A 1979-05-29 1979-05-29 Switching method for power converter Pending JPS55157984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6638979A JPS55157984A (en) 1979-05-29 1979-05-29 Switching method for power converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6638979A JPS55157984A (en) 1979-05-29 1979-05-29 Switching method for power converter

Publications (1)

Publication Number Publication Date
JPS55157984A true JPS55157984A (en) 1980-12-09

Family

ID=13314414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6638979A Pending JPS55157984A (en) 1979-05-29 1979-05-29 Switching method for power converter

Country Status (1)

Country Link
JP (1) JPS55157984A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199474A (en) * 1981-05-29 1982-12-07 Mitsubishi Electric Corp Controller for power reversible converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199474A (en) * 1981-05-29 1982-12-07 Mitsubishi Electric Corp Controller for power reversible converter

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