WO2011039552A3 - Method for minimizing neutral point voltage of a three-phase electric network - Google Patents

Method for minimizing neutral point voltage of a three-phase electric network Download PDF

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Publication number
WO2011039552A3
WO2011039552A3 PCT/HU2010/000101 HU2010000101W WO2011039552A3 WO 2011039552 A3 WO2011039552 A3 WO 2011039552A3 HU 2010000101 W HU2010000101 W HU 2010000101W WO 2011039552 A3 WO2011039552 A3 WO 2011039552A3
Authority
WO
WIPO (PCT)
Prior art keywords
neutral point
phase electric
electric network
point voltage
asymmetry
Prior art date
Application number
PCT/HU2010/000101
Other languages
French (fr)
Other versions
WO2011039552A2 (en
Inventor
Ferenc RADVÁNSZKI
Original Assignee
Protecta Elektronikai Kft.
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 Protecta Elektronikai Kft. filed Critical Protecta Elektronikai Kft.
Publication of WO2011039552A2 publication Critical patent/WO2011039552A2/en
Publication of WO2011039552A3 publication Critical patent/WO2011039552A3/en

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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)
  • Control Of Electrical Variables (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention is a method for minimising the neutral point voltage of a three-phase electric network, in the course of which the zero sequence asymmetry of the network is measured by measuring the asymmetry current, on the basis of this, capacitor values for balancing the zero sequence asymmetry are determined, then the zero sequence asymmetry is balanced by means of installation of high voltage capacitors (10) according to said capacitor values.
PCT/HU2010/000101 2009-09-30 2010-09-27 Method for minimizing neutral point voltage of a three-phase electric network WO2011039552A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU0900620A HUP0900620A3 (en) 2009-09-30 2009-09-30 Method for minimising voltage of neutral point in three-phase electric power networks
HUP0900620 2009-09-30

Publications (2)

Publication Number Publication Date
WO2011039552A2 WO2011039552A2 (en) 2011-04-07
WO2011039552A3 true WO2011039552A3 (en) 2012-04-05

Family

ID=89989283

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2010/000101 WO2011039552A2 (en) 2009-09-30 2010-09-27 Method for minimizing neutral point voltage of a three-phase electric network

Country Status (2)

Country Link
HU (1) HUP0900620A3 (en)
WO (1) WO2011039552A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110829398B (en) * 2019-09-29 2022-03-15 长江勘测规划设计研究有限责任公司 Generator neutral point displacement voltage limiting method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE364894C (en) * 1920-07-31 1922-12-05 Bbc Brown Boveri & Cie Device to compensate for the asymmetry caused by the difference in the partial capacities of the individual network conductors to earth in a network protected by earth inductance
DE971445C (en) * 1952-03-05 1959-01-29 Licentia Gmbh Procedure for extinguishing the earth fault arc in three-phase systems
DE2836368A1 (en) * 1977-09-30 1979-04-05 Ibm Circuit reducing current in earth line of equipment - has capacitor connected between equipment frame and phase inverter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677364A (en) 1985-01-04 1987-06-30 The United States Of America As Represented By The United States Department Of Energy Reactive power compensating system
JPS6366617A (en) 1986-09-09 1988-03-25 Toshiba Corp Reactive power compensator
US5099190A (en) 1990-01-16 1992-03-24 Kabushiki Kaisha Toshiba Reactive power compensation apparatus
US5134356A (en) 1990-06-22 1992-07-28 Board Of Regents Of The University Of Washington Reactive power compensator
US5670864A (en) 1995-05-26 1997-09-23 Pacific Scientific Company Adaptive automatic power capacitor for controlling controller a capacitor bank of a power distribution system
US7091703B2 (en) 2004-03-04 2006-08-15 American Superconductor Corporation Dynamic reactive compensation system and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE364894C (en) * 1920-07-31 1922-12-05 Bbc Brown Boveri & Cie Device to compensate for the asymmetry caused by the difference in the partial capacities of the individual network conductors to earth in a network protected by earth inductance
DE971445C (en) * 1952-03-05 1959-01-29 Licentia Gmbh Procedure for extinguishing the earth fault arc in three-phase systems
DE2836368A1 (en) * 1977-09-30 1979-04-05 Ibm Circuit reducing current in earth line of equipment - has capacitor connected between equipment frame and phase inverter

Also Published As

Publication number Publication date
HUP0900620A2 (en) 2011-12-28
WO2011039552A2 (en) 2011-04-07
HU0900620D0 (en) 2009-12-28
HUP0900620A3 (en) 2012-02-28

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