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
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).
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)
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 |
-
1979
- 1979-05-18 FR FR7912674A patent/FR2457029A1/en active Granted
-
1980
- 1980-05-13 BE BE0/200576A patent/BE883251A/en not_active IP Right Cessation
- 1980-05-16 BR BR8003035A patent/BR8003035A/en unknown
Non-Patent Citations (2)
Title |
---|
EXBK/69 * |
EXBK/77 * |
Cited By (11)
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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