WO2006041313A3 - Load symmetrization with controllable inductor - Google Patents

Load symmetrization with controllable inductor Download PDF

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Publication number
WO2006041313A3
WO2006041313A3 PCT/NO2005/000385 NO2005000385W WO2006041313A3 WO 2006041313 A3 WO2006041313 A3 WO 2006041313A3 NO 2005000385 W NO2005000385 W NO 2005000385W WO 2006041313 A3 WO2006041313 A3 WO 2006041313A3
Authority
WO
WIPO (PCT)
Prior art keywords
load
symmetrization
inductor
controllable inductor
phase
Prior art date
Application number
PCT/NO2005/000385
Other languages
French (fr)
Other versions
WO2006041313A2 (en
Inventor
Espen Haugs
Frank Strand
Bjoernar S Johansen
Original Assignee
Magtech As
Espen Haugs
Frank Strand
Bjoernar S Johansen
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 GB0422867A external-priority patent/GB2419479A/en
Application filed by Magtech As, Espen Haugs, Frank Strand, Bjoernar S Johansen filed Critical Magtech As
Publication of WO2006041313A2 publication Critical patent/WO2006041313A2/en
Publication of WO2006041313A3 publication Critical patent/WO2006041313A3/en

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
    • H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
    • 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
    • Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks

Landscapes

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

Abstract

The present invention comprises a method for compensation and symmetrization of a three-phase system (1) with a single-phase load (6), comprising: providing at least one variable inductor (50, 52, 53) for connection to the three-phase system; adjusting the inductor' s inductance to obtain a resistive single-phase load and/or a three-phase load which draws balanced line currents. The invention comprises also a device and a system for compensation and symmetrisation by means of variable inductors.
PCT/NO2005/000385 2004-10-14 2005-10-14 Load symmetrization with controllable inductor WO2006041313A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0422867.2 2004-10-14
GB0422867A GB2419479A (en) 2004-10-14 2004-10-14 Symetrization of a three-phase system with a single-phase load
US10/968,845 2004-10-19
US10/968,845 US7259544B2 (en) 2004-10-14 2004-10-19 Load symmetrization with controllable inductor

Publications (2)

Publication Number Publication Date
WO2006041313A2 WO2006041313A2 (en) 2006-04-20
WO2006041313A3 true WO2006041313A3 (en) 2006-06-29

Family

ID=36148731

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2005/000385 WO2006041313A2 (en) 2004-10-14 2005-10-14 Load symmetrization with controllable inductor

Country Status (1)

Country Link
WO (1) WO2006041313A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2624403B1 (en) * 2012-01-31 2020-12-09 Siemens Aktiengesellschaft Direct electric heating system for heating a subsea pipeline

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053920A (en) * 1959-06-29 1962-09-11 Ajax Magnethermic Corp Control for electric furnace
DE3217879A1 (en) * 1982-05-12 1983-11-17 Institut elektrodinamiki Akademii Nauk Ukrainskoj SSR, Kiev Magneto-dynamic installation
US4689735A (en) * 1985-02-06 1987-08-25 Associated Electrical Industries Limited Power supply for single-phase traction system
DE3927437A1 (en) * 1989-08-17 1991-04-11 Licentia Gmbh Polyphase AC network symmetrisation with undelayed load control - involves predictive power factor correction by adjustable inductance and capacitances at each onset of load current
WO2002045101A2 (en) * 2000-10-16 2002-06-06 Primarion, Inc. System and method for orthogonal inductance variation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053920A (en) * 1959-06-29 1962-09-11 Ajax Magnethermic Corp Control for electric furnace
DE3217879A1 (en) * 1982-05-12 1983-11-17 Institut elektrodinamiki Akademii Nauk Ukrainskoj SSR, Kiev Magneto-dynamic installation
US4689735A (en) * 1985-02-06 1987-08-25 Associated Electrical Industries Limited Power supply for single-phase traction system
DE3927437A1 (en) * 1989-08-17 1991-04-11 Licentia Gmbh Polyphase AC network symmetrisation with undelayed load control - involves predictive power factor correction by adjustable inductance and capacitances at each onset of load current
WO2002045101A2 (en) * 2000-10-16 2002-06-06 Primarion, Inc. System and method for orthogonal inductance variation

Also Published As

Publication number Publication date
WO2006041313A2 (en) 2006-04-20

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