JPS61218370A - Firing phase controlling method for rectifier circuit - Google Patents

Firing phase controlling method for rectifier circuit

Info

Publication number
JPS61218370A
JPS61218370A JP5845485A JP5845485A JPS61218370A JP S61218370 A JPS61218370 A JP S61218370A JP 5845485 A JP5845485 A JP 5845485A JP 5845485 A JP5845485 A JP 5845485A JP S61218370 A JPS61218370 A JP S61218370A
Authority
JP
Japan
Prior art keywords
bridge circuits
firing phase
rectifier circuit
exchanging
transformer
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
JP5845485A
Other languages
Japanese (ja)
Inventor
Hideo Sakamoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5845485A priority Critical patent/JPS61218370A/en
Publication of JPS61218370A publication Critical patent/JPS61218370A/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
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/145—Conversion of ac power input into dc 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
    • H02M7/155—Conversion of ac power input into dc 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
    • H02M7/19—Conversion of ac power input into dc 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 arranged for operation in series, e.g. for voltage multiplication

Abstract

PURPOSE:To reduce the variation in a current flowed to a load by exchanging the firing phase angles of two thyristor bridge circuits several times when exchanging the angles of the bridge circuits. CONSTITUTION:An AC power source 1 is connected with the input terminal of a transformer 2, and thyristor bridge circuits 31, 32 are connected with two output terminals of the transformer 2. A load 4 is connected with the output sides of the bridge circuits 31, 32. A capacitor 51 is connected in parallel with the circuit 31 at the output terminal of the transformer 2. When exchanging the firing phase angles of the bridge circuits 31, 32, it is exchanged several times to reduce the variation in a load current.
JP5845485A 1985-03-25 1985-03-25 Firing phase controlling method for rectifier circuit Pending JPS61218370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5845485A JPS61218370A (en) 1985-03-25 1985-03-25 Firing phase controlling method for rectifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5845485A JPS61218370A (en) 1985-03-25 1985-03-25 Firing phase controlling method for rectifier circuit

Publications (1)

Publication Number Publication Date
JPS61218370A true JPS61218370A (en) 1986-09-27

Family

ID=13084868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5845485A Pending JPS61218370A (en) 1985-03-25 1985-03-25 Firing phase controlling method for rectifier circuit

Country Status (1)

Country Link
JP (1) JPS61218370A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0622974B1 (en) * 1993-04-30 1999-09-29 Cegelec Metals Systems Method for use in a rectifier for powering a DC arc furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0622974B1 (en) * 1993-04-30 1999-09-29 Cegelec Metals Systems Method for use in a rectifier for powering a DC arc furnace

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