ES2158836T1 - METHOD AND DEVICE FOR REDUCING THE CURRENT IN A NEUTRAL DRIVER. - Google Patents

METHOD AND DEVICE FOR REDUCING THE CURRENT IN A NEUTRAL DRIVER.

Info

Publication number
ES2158836T1
ES2158836T1 ES99948571T ES99948571T ES2158836T1 ES 2158836 T1 ES2158836 T1 ES 2158836T1 ES 99948571 T ES99948571 T ES 99948571T ES 99948571 T ES99948571 T ES 99948571T ES 2158836 T1 ES2158836 T1 ES 2158836T1
Authority
ES
Spain
Prior art keywords
current
phase
neutral conductor
voltage
reducing
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.)
Pending
Application number
ES99948571T
Other languages
Spanish (es)
Inventor
Mats Karlsson
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.)
Vertiv Sweden AB
Original Assignee
Emerson Energy Systems 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
Application filed by Emerson Energy Systems AB filed Critical Emerson Energy Systems AB
Publication of ES2158836T1 publication Critical patent/ES2158836T1/en
Pending 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
    • H02J3/26—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)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Electrical Variables (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Rectifiers (AREA)
  • Control Of Ac Motors In General (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

Un aparato para ser utilizado en un sistema de suministro eléctrico que tiene como mínimo dos fases (R, S, T) y un conductor neutro (N) y una carga controlable (11, 12, 13) por cada fase, constando dicho aparato de medios para reducir la corriente en el conductor neutro, caracterizado porque los referidos medios constan de: - medios medidores de tensión (21, 22, 23) para medir la tensión de cada fase (R, S, T) o medios medidores de corriente de fase (21, 22, 23) para medir la corriente de cada fase (R, S, T), - medios de medida de corriente (35) para medir la intensidad de corriente en el conductor neutro (N), - medios de multiplicación (31, 32, 33) para multiplicar una señal correspondiente a la tensión de fase de cada fase y una señal correspondiente a la corriente en el conductor neutro, y - medios de realimentación para realimentar el producto de la tensión de fase, o la corriente de fase, y la corriente a la carga en un bucle de realimentación negativa.An apparatus for use in an electrical supply system that has at least two phases (R, S, T) and a neutral conductor (N) and a controllable load (11, 12, 13) for each phase, said apparatus comprising means for reducing the current in the neutral conductor, characterized in that said means consist of: - voltage measuring means (21, 22, 23) for measuring the voltage of each phase (R, S, T) or current measuring means of phase (21, 22, 23) to measure the current of each phase (R, S, T), - current measurement means (35) to measure the current intensity in the neutral conductor (N), - multiplication means (31, 32, 33) to multiply a signal corresponding to the phase voltage of each phase and a signal corresponding to the current in the neutral conductor, and - feedback means to feedback the product of the phase voltage, or the current phase, and the current to the load in a negative feedback loop.

ES99948571T 1998-05-06 1999-05-04 METHOD AND DEVICE FOR REDUCING THE CURRENT IN A NEUTRAL DRIVER. Pending ES2158836T1 (en)

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 (1)

Publication Number Publication Date
ES2158836T1 true ES2158836T1 (en) 2001-09-16

Family

ID=20411204

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99948571T Pending ES2158836T1 (en) 1998-05-06 1999-05-04 METHOD AND DEVICE FOR REDUCING THE CURRENT IN A NEUTRAL DRIVER.

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
KR102248724B1 (en) * 2013-12-18 2021-05-07 오티스 엘리베이터 컴파니 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
RU2000130721A (en) 2002-11-27
WO1999057793A1 (en) 1999-11-11
AU4304799A (en) 1999-11-23
SE9801582L (en) 1999-11-07
CN1308785A (en) 2001-08-15
CA2331710A1 (en) 1999-11-11
DE1092255T1 (en) 2002-02-07
JP2002514036A (en) 2002-05-14
HUP0102324A2 (en) 2001-10-28
SE9801582D0 (en) 1998-05-06
EP1092255A1 (en) 2001-04-18
SE513884C2 (en) 2000-11-20
BR9910214A (en) 2001-01-09

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