SE9801582L - Method and apparatus of an electrical system - Google Patents

Method and apparatus of an electrical system

Info

Publication number
SE9801582L
SE9801582L SE9801582A SE9801582A SE9801582L SE 9801582 L SE9801582 L SE 9801582L SE 9801582 A SE9801582 A SE 9801582A SE 9801582 A SE9801582 A SE 9801582A SE 9801582 L SE9801582 L SE 9801582L
Authority
SE
Sweden
Prior art keywords
current
phase
neutral
multiplying
voltage
Prior art date
Application number
SE9801582A
Other languages
Swedish (sv)
Other versions
SE9801582D0 (en
SE513884C2 (en
Inventor
Mats Karlsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9801582A priority Critical patent/SE513884C2/en
Publication of SE9801582D0 publication Critical patent/SE9801582D0/en
Priority to AU43047/99A priority patent/AU4304799A/en
Priority to EP99948571A priority patent/EP1092255A1/en
Priority to RU2000130721/09A priority patent/RU2000130721A/en
Priority to CN99808342.9A priority patent/CN1308785A/en
Priority to BR9910214-5A priority patent/BR9910214A/en
Priority to ES99948571T priority patent/ES2158836T1/en
Priority to PCT/SE1999/000743 priority patent/WO1999057793A1/en
Priority to HU0102324A priority patent/HUP0102324A2/en
Priority to DE1092255T priority patent/DE1092255T1/en
Priority to TR2000/03209T priority patent/TR200003209T2/en
Priority to JP2000547683A priority patent/JP2002514036A/en
Priority to CA002331710A priority patent/CA2331710A1/en
Publication of SE9801582L publication Critical patent/SE9801582L/en
Publication of SE513884C2 publication Critical patent/SE513884C2/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

Abstract

An apparatus for reducing the current in the neutral conductor of an electrical two- or three-phase system comprises: means (21, 22, 23) for measuring the voltage or current of each phase; means (35) for measuring the current in the neutral conductor; multiplying means (31, 32, 33) for multiplying the phase voltage or current of each phase by the current in the neutral conductor; means (42) for feeding back the product of the phase voltage and the current to the load in a negative feedback loop. Said apparatus may also comprise: interface means (21, 22, 23) for converting the measured phase voltages or currents and the neutral current into control signals; and means (107, 109) for normalizing the output of said multiplying means by low-pass filtering. A method for reducing the neutral current is also disclosed.
SE9801582A 1998-05-06 1998-05-06 Device, method and system for reducing the zero current in electrical system SE513884C2 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
SE9801582A SE513884C2 (en) 1998-05-06 1998-05-06 Device, method and system for reducing the zero current in electrical system
CA002331710A CA2331710A1 (en) 1998-05-06 1999-05-04 Method and device for reducing the current in the neutral conductor
ES99948571T ES2158836T1 (en) 1998-05-06 1999-05-04 METHOD AND DEVICE FOR REDUCING THE CURRENT IN A NEUTRAL DRIVER.
HU0102324A HUP0102324A2 (en) 1998-05-06 1999-05-04 Method and device for reducing the current in the neutral conductor
RU2000130721/09A RU2000130721A (en) 1998-05-06 1999-05-04 METHOD AND DEVICE FOR REDUCING CURRENT IN A NEUTRAL WIRE
CN99808342.9A CN1308785A (en) 1998-05-06 1999-05-04 Method and device for reducing the current in the neutral conductor
BR9910214-5A BR9910214A (en) 1998-05-06 1999-05-04 Apparatus for use in an electrical supply system having at least two phases and a neutral conductor and a controllable load for each phase, process to reduce the current in a conductor in an electrical system having at least two phase conductors and a neutral conductor and a controllable load for each phase, single-phase electrical system, and, process to balance the voltage through two loads connected in series in a single-phase system
AU43047/99A AU4304799A (en) 1998-05-06 1999-05-04 Method and device for reducing the current in the neutral conductor
PCT/SE1999/000743 WO1999057793A1 (en) 1998-05-06 1999-05-04 Method and device for reducing the current in the neutral conductor
EP99948571A EP1092255A1 (en) 1998-05-06 1999-05-04 Method and device for reducing the current in the neutral conductor
DE1092255T DE1092255T1 (en) 1998-05-06 1999-05-04 Method and device for reducing the current in a neutral conductor
TR2000/03209T TR200003209T2 (en) 1998-05-06 1999-05-04 Method and device for reducing current in neutral conductor
JP2000547683A JP2002514036A (en) 1998-05-06 1999-05-04 Method and apparatus for reducing current in a neutral conductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9801582A SE513884C2 (en) 1998-05-06 1998-05-06 Device, method and system for reducing the zero current in electrical system

Publications (3)

Publication Number Publication Date
SE9801582D0 SE9801582D0 (en) 1998-05-06
SE9801582L true SE9801582L (en) 1999-11-07
SE513884C2 SE513884C2 (en) 2000-11-20

Family

ID=20411204

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9801582A SE513884C2 (en) 1998-05-06 1998-05-06 Device, method and system for reducing the zero current in electrical system

Country Status (13)

Country Link
EP (1) EP1092255A1 (en)
JP (1) JP2002514036A (en)
CN (1) CN1308785A (en)
AU (1) AU4304799A (en)
BR (1) BR9910214A (en)
CA (1) CA2331710A1 (en)
DE (1) DE1092255T1 (en)
ES (1) ES2158836T1 (en)
HU (1) HUP0102324A2 (en)
RU (1) RU2000130721A (en)
SE (1) SE513884C2 (en)
TR (1) TR200003209T2 (en)
WO (1) WO1999057793A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9244521B2 (en) 2012-12-26 2016-01-26 Intel Corporation Supporting runtime D3 and buffer flush and fill for a peripheral component interconnect device
WO2015094232A1 (en) 2013-12-18 2015-06-25 Otis Elevator Company Control strategies for multilevel line regenerative drive

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574356A (en) * 1994-07-08 1996-11-12 Northrop Grumman Corporation Active neutral current compensator
US5568371A (en) * 1994-09-29 1996-10-22 Texas A&M University System Active harmonic power filter apparatus and method
US5648894A (en) * 1994-09-30 1997-07-15 General Electric Company Active filter control
CA2157307C (en) * 1994-10-10 1999-07-06 Luke Yu Zero-sequence current suppressor

Also Published As

Publication number Publication date
TR200003209T2 (en) 2001-03-21
WO1999057793A1 (en) 1999-11-11
SE9801582D0 (en) 1998-05-06
CA2331710A1 (en) 1999-11-11
RU2000130721A (en) 2002-11-27
JP2002514036A (en) 2002-05-14
ES2158836T1 (en) 2001-09-16
DE1092255T1 (en) 2002-02-07
CN1308785A (en) 2001-08-15
AU4304799A (en) 1999-11-23
EP1092255A1 (en) 2001-04-18
HUP0102324A2 (en) 2001-10-28
SE513884C2 (en) 2000-11-20
BR9910214A (en) 2001-01-09

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