GB1561540A - Power factor correcting equipment - Google Patents

Power factor correcting equipment Download PDF

Info

Publication number
GB1561540A
GB1561540A GB49889/76A GB4988976A GB1561540A GB 1561540 A GB1561540 A GB 1561540A GB 49889/76 A GB49889/76 A GB 49889/76A GB 4988976 A GB4988976 A GB 4988976A GB 1561540 A GB1561540 A GB 1561540A
Authority
GB
United Kingdom
Prior art keywords
reactance
power factor
factor correcting
control
members
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.)
Expired
Application number
GB49889/76A
Other languages
English (en)
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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
Priority claimed from SE7512979A external-priority patent/SE395576B/xx
Application filed by ASEA AB filed Critical ASEA AB
Publication of GB1561540A publication Critical patent/GB1561540A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • H02J3/1864—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control using reactive elements connected in series with semiconductor switches, e.g. static VAR compensators [SVC], thyristor-controlled reactors [TCR] or thyristor-switched capacitors [TSC]
    • 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
    • Y02E40/10—Flexible AC transmission systems [FACTS]

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
GB49889/76A 1975-12-01 1976-11-30 Power factor correcting equipment Expired GB1561540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7512979A SE395576B (sv) 1975-11-19 1975-12-01 Hogspend tyristorventil med overspenningsskydd

Publications (1)

Publication Number Publication Date
GB1561540A true GB1561540A (en) 1980-02-20

Family

ID=20326198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49889/76A Expired GB1561540A (en) 1975-12-01 1976-11-30 Power factor correcting equipment

Country Status (5)

Country Link
US (1) US4104576A (enExample)
CA (1) CA1076647A (enExample)
CH (1) CH609182A5 (enExample)
DE (1) DE2653333C2 (enExample)
GB (1) GB1561540A (enExample)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356441A (en) * 1977-06-30 1982-10-26 Electric Power Research Institute, Inc. Voltage regulator utilizing a static VAR generator with half period averaging and saturating type firing angle control
US4234843A (en) * 1978-09-15 1980-11-18 Westinghouse Electric Corp. Static VAR generator with discrete capacitive current levels
US4307331A (en) * 1978-09-15 1981-12-22 Westinghouse Electric Corp. Hybrid switched-capacitor controlled-inductor static VAR generator and control apparatus
US4210860A (en) * 1978-09-15 1980-07-01 Westinghouse Electric Corp. VAR Generator with current sensitive inductance break point
DE2905408C2 (de) * 1979-02-09 1985-05-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Thyristorgeschaltete Leistungskondensatoren zur Blindstromkompensation
US4365190A (en) * 1981-03-19 1982-12-21 Asi Systems, Inc. Automatic var controller
CA1162977A (en) * 1981-05-29 1984-02-28 Canadian General Electric Company Limited Thyristor-switched capacitor apparatus
US4348631A (en) * 1981-06-04 1982-09-07 Westinghouse Electric Corp. Static VAR generator
US4394614A (en) * 1981-09-15 1983-07-19 Westinghouse Electric Corp. Static VAR generators
US4398141A (en) * 1981-09-15 1983-08-09 Westinghouse Electric Corp. Static VAR generators
US4560917A (en) * 1983-12-21 1985-12-24 Westinghouse Electric Corp. Static VAR generator having reduced harmonics
US4571535A (en) * 1984-11-15 1986-02-18 Westinghouse Electric Corp. VAR Generator having controlled discharge of thyristor switched capacitors
US5032738A (en) * 1986-01-22 1991-07-16 Vithayathil John J Scheme for rapid adjustment of network impedance
DE3601990A1 (de) * 1986-01-23 1987-07-30 Siemens Ag Steuerverfahren fuer parallele thyristorgestellte induktivitaeten zur schnellen blindstromkompensation
DE3616334C2 (de) * 1986-05-15 2000-11-02 Asea Brown Boveri Verfahren zur Dämpfung mindestens einer elektrischen Oberschwingung zur Netzfrequenz in einem mehrphasigen Wechselstromnetz
DE3905261A1 (de) * 1989-02-21 1990-08-23 Siemens Ag Verfahren und einrichtung zur stabilisation eines elektrischen versorgungsnetzes
US5402057A (en) * 1992-04-27 1995-03-28 General Electric Co. System and method for coordinating shunt reactance switching
US5619405A (en) * 1995-12-21 1997-04-08 Reltec Corporation Variable bandwith control for power factor correction
AU2001283808A1 (en) * 2000-08-18 2002-02-25 John Vithayathil Circuit arrangement for the static generation of a variable electric output
US6603795B2 (en) 2001-02-08 2003-08-05 Hatch Associates Ltd. Power control system for AC electric arc furnace
US6573691B2 (en) * 2001-10-17 2003-06-03 Hatch Associates Ltd. Control system and method for voltage stabilization in electric power system
ATE319177T1 (de) * 2003-12-05 2006-03-15 Technicatome Hybrid-leistungsschalter
US7091703B2 (en) * 2004-03-04 2006-08-15 American Superconductor Corporation Dynamic reactive compensation system and method
BRPI0515356B1 (pt) 2004-09-01 2017-10-10 Hatch Ltd. "electric oven and method for operating an electric oven"
US20080056327A1 (en) * 2006-08-30 2008-03-06 Hatch Ltd. Method and system for predictive electrode lowering in a furnace
US20100010924A1 (en) * 2008-07-14 2010-01-14 Green Equity, LLC Energy credit harvesting
IT1401691B1 (it) * 2010-09-10 2013-08-02 Tecnoprogetti Di Renzo Tentoni Metodo di rifasamento automatico della corrente di una rete elettrica domestica
US8633669B2 (en) 2010-12-24 2014-01-21 Marc Henness Electrical circuit for controlling electrical power to drive an inductive load
US8542503B2 (en) * 2011-01-31 2013-09-24 Robert Stephen Wrathall Systems and methods for high speed power factor correction
JP5730652B2 (ja) * 2011-04-18 2015-06-10 中国電力株式会社 電圧調整装置及び電圧調整方法
KR20170135324A (ko) * 2016-05-31 2017-12-08 엘에스산전 주식회사 무효 전력 보상 시스템 및 그 방법
US10998815B1 (en) 2020-11-23 2021-05-04 Robert S. Wrathall Electrical circuits for power factor correction by measurement and removal of overtones

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1763018C3 (de) * 1968-03-23 1985-06-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur verzögerungsfreien Regelung der Blindleistung in elektrischen Netzen
DE1910578A1 (de) * 1969-03-01 1970-09-10 Siemens Ag Regelungseinrichtung zur Blindstromkompensation einer elektrischen Leitung
SE353821B (enExample) * 1970-02-09 1973-02-12 Asea Ab
CH529464A (de) * 1971-03-25 1972-10-15 Bbc Brown Boveri & Cie Elektrische Kompensationseinrichtung an einem Hochspannungsnetz
DE2238021C2 (de) * 1972-07-29 1982-09-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur Kompensation eines an der verketteten Spannung eines Mehrphasennetzes betriebenen ohmsch-induktiven Verbrauchers
DE2303939C2 (de) * 1973-01-24 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Betrieb eines Blindstrom-Kompensationskondensators an einem Wechselstromnetz
CA1038450A (en) * 1973-10-09 1978-09-12 Dennis A. Woodford Reactance controller
US3992661A (en) * 1975-08-25 1976-11-16 General Electric Company Reactive current compensating apparatus for electric power systems
US4028614A (en) * 1976-05-03 1977-06-07 General Electric Company High speed control of reactive power for voltage stabilization in electric power systems

Also Published As

Publication number Publication date
CA1076647A (en) 1980-04-29
DE2653333C2 (de) 1982-06-03
US4104576A (en) 1978-08-01
DE2653333A1 (de) 1977-06-08
CH609182A5 (enExample) 1979-02-15

Similar Documents

Publication Publication Date Title
GB1561540A (en) Power factor correcting equipment
EP0239278B1 (en) Capacitor apparatus for reactive power compensation
US6114841A (en) Method and device for compensation of reactive power
US4055795A (en) Correction system for regulating the power factor of an electrical network
US5453643A (en) Controllable compound voltage DC/AC transforming circuit
US6674267B2 (en) Method and a device for compensation of the consumption of reactive power by an industrial load
SE501786C2 (sv) Förfarande för övervakning och styrning av en till ett elektriskt kraftnät ansluten anläggningsdel
US4348631A (en) Static VAR generator
US20040169421A1 (en) Method and apparatus for sensing voltage in an automatic transfer switch system
US4174497A (en) Circuit and method for controlling reactive load currents of a three-phase system
US4560917A (en) Static VAR generator having reduced harmonics
GB1563838A (en) Regulated high voltage dc supply
US3932808A (en) Power factor correcting means
US4041370A (en) Apparatus for rapidly detecting and calculating the root mean square of electrical measuring values in alternating current networks
EP0083487A1 (en) Static VAR generator
US4343034A (en) Magnetic amplifier preregulator for linear power supplies
US3424971A (en) Means for controlling reactive power in an inverter station
EP0543365A1 (en) Electronic watthour meter
US5424626A (en) Tuned A.C. power systems compensator having variable reflective impedance for linear and non-linear reactive load compensation
JP2024516873A (ja) 電力系統におけるインバータ端子電圧調整
CA1181806A (en) Method and device for continuously controlling the phase angle in electric energy transmission equipment
US4164016A (en) Current sensing system
US4441149A (en) Multi-voltage transformer input circuits with primary reactor voltage control
SU738046A1 (ru) Трехфазна система электропитани
RU2856320C1 (ru) Способ регулирования напряжения в распределительных сетях 0,4 кВ

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee