FR2457029A1 - Static compensator for fluctuating load power supply circuits - is typically for arc furnaces and has thyristors in antiparallel to absorb reactive power (BR 23.12.80) - Google Patents

Static compensator for fluctuating load power supply circuits - is typically for arc furnaces and has thyristors in antiparallel to absorb reactive power (BR 23.12.80)

Info

Publication number
FR2457029A1
FR2457029A1 FR7912674A FR7912674A FR2457029A1 FR 2457029 A1 FR2457029 A1 FR 2457029A1 FR 7912674 A FR7912674 A FR 7912674A FR 7912674 A FR7912674 A FR 7912674A FR 2457029 A1 FR2457029 A1 FR 2457029A1
Authority
FR
France
Prior art keywords
reactive power
circuit
thyristors
typically
antiparallel
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
FR7912674A
Other languages
French (fr)
Other versions
FR2457029B1 (en
Inventor
Michel Boidin
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.)
Jeumont Schneider SA
Original Assignee
Jeumont Schneider SA
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 Jeumont Schneider SA filed Critical Jeumont Schneider SA
Priority to FR7912674A priority Critical patent/FR2457029A1/en
Priority to BE0/200576A priority patent/BE883251A/en
Priority to BR8003035A priority patent/BR8003035A/en
Publication of FR2457029A1 publication Critical patent/FR2457029A1/en
Application granted granted Critical
Publication of FR2457029B1 publication Critical patent/FR2457029B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
    • H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The thyristor based static compensation is for fluctuating load reaction power drawn from an AC distribution network. The load is typically an arc furnace where short and open circuit conditions rapidly succeed each other. The compensation circuit is intended to cope with rapid transients and to work in conjunction with normal more slowly reacting regulation circuits. The arc furnace etc.(1) is connected directly across the supply (4) and has an associated filter bank (5) across it removing harmonics. The compensator proper has a shunt capacitor bank (6) matching the reactive power handling capability of the circuit and a thyristor reactive power absorbing circuit (7). The thyristors are fired as a function of a reactive power sensor (11) output fed from the supply and a subtraction circuit (12), the sensor having a series active filter (13).
FR7912674A 1979-05-18 1979-05-18 Static compensator for fluctuating load power supply circuits - is typically for arc furnaces and has thyristors in antiparallel to absorb reactive power (BR 23.12.80) Granted FR2457029A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7912674A FR2457029A1 (en) 1979-05-18 1979-05-18 Static compensator for fluctuating load power supply circuits - is typically for arc furnaces and has thyristors in antiparallel to absorb reactive power (BR 23.12.80)
BE0/200576A BE883251A (en) 1979-05-18 1980-05-13 CONTROL CIRCUIT FOR A STATIC COMPENSATOR WITH REACTIVE POWER THYRISTORS DUE TO A DISTURBANCE LOAD
BR8003035A BR8003035A (en) 1979-05-18 1980-05-16 COMMAND CIRCUIT FROM A STATIC COMPENSATOR TO THYRISTORS OF THE REACTIVE POWER CAUSED BY A DISTURBING LOAD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7912674A FR2457029A1 (en) 1979-05-18 1979-05-18 Static compensator for fluctuating load power supply circuits - is typically for arc furnaces and has thyristors in antiparallel to absorb reactive power (BR 23.12.80)

Publications (2)

Publication Number Publication Date
FR2457029A1 true FR2457029A1 (en) 1980-12-12
FR2457029B1 FR2457029B1 (en) 1984-02-10

Family

ID=9225623

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912674A Granted FR2457029A1 (en) 1979-05-18 1979-05-18 Static compensator for fluctuating load power supply circuits - is typically for arc furnaces and has thyristors in antiparallel to absorb reactive power (BR 23.12.80)

Country Status (3)

Country Link
BE (1) BE883251A (en)
BR (1) BR8003035A (en)
FR (1) FR2457029A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471686A1 (en) * 1979-12-03 1981-06-19 Gen Electric REACTIVE CURRENT POWER APPARATUS FOR ELECTRIC POWER SYSTEM
EP0161451A1 (en) * 1984-04-06 1985-11-21 CGEE ALSTHOM Société anonyme dite: Device for producing a signal corresponding to a variable related to the reactive power of an arc furnace for controlling a reactive power compensator
EP0429774A1 (en) * 1989-11-30 1991-06-05 DANIELI & C. OFFICINE MECCANICHE S.p.A. Direct-arc electric furnace fed with controlled current and method to feed a direct-arc furnace with controlled current
EP0483405A1 (en) * 1990-10-31 1992-05-06 Nkk Corporation Flicker compensating apparatus for DC arc furnace
EP0589544A2 (en) * 1992-09-23 1994-03-30 MANNESMANN Aktiengesellschaft Three phase arc furnace arrangement with inductor
US7212561B2 (en) 2004-09-01 2007-05-01 Hatch Ltd. System and method for controlling electrical power across multiple furnaces using variable reactors

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/69 *
EXBK/77 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471686A1 (en) * 1979-12-03 1981-06-19 Gen Electric REACTIVE CURRENT POWER APPARATUS FOR ELECTRIC POWER SYSTEM
EP0161451A1 (en) * 1984-04-06 1985-11-21 CGEE ALSTHOM Société anonyme dite: Device for producing a signal corresponding to a variable related to the reactive power of an arc furnace for controlling a reactive power compensator
US4633184A (en) * 1984-04-06 1986-12-30 Cgee Alsthom Device for generating a signal corresponding to a variable magnitude associated with the reactive power of an arc furnace in order to control a reactive power compensator
EP0429774A1 (en) * 1989-11-30 1991-06-05 DANIELI & C. OFFICINE MECCANICHE S.p.A. Direct-arc electric furnace fed with controlled current and method to feed a direct-arc furnace with controlled current
US5239554A (en) * 1989-11-30 1993-08-24 Danieli & C. Officine Meccanichi Spa Direct-arc electric furnace fed with controlled current and method to feed a direct-arc furnace with controlled current
EP0483405A1 (en) * 1990-10-31 1992-05-06 Nkk Corporation Flicker compensating apparatus for DC arc furnace
EP0589544A2 (en) * 1992-09-23 1994-03-30 MANNESMANN Aktiengesellschaft Three phase arc furnace arrangement with inductor
EP0589544A3 (en) * 1992-09-23 1994-05-18 Mannesmann Ag Three phase arc furnace arrangement with inductor
US7212561B2 (en) 2004-09-01 2007-05-01 Hatch Ltd. System and method for controlling electrical power across multiple furnaces using variable reactors
US7212562B2 (en) 2004-09-01 2007-05-01 Hatch Ltd. System and method for controlling total electrical power across multiple furnaces using electrode positioning
US7257146B2 (en) 2004-09-01 2007-08-14 Hatch Ltd. System and method for controlling power across multiple electrodes in a furnace

Also Published As

Publication number Publication date
FR2457029B1 (en) 1984-02-10
BR8003035A (en) 1980-12-23
BE883251A (en) 1980-09-01

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