BR0302851A - Processo de detecção de saturação em um transformador de corrente - Google Patents

Processo de detecção de saturação em um transformador de corrente

Info

Publication number
BR0302851A
BR0302851A BR0302851-8A BR0302851A BR0302851A BR 0302851 A BR0302851 A BR 0302851A BR 0302851 A BR0302851 A BR 0302851A BR 0302851 A BR0302851 A BR 0302851A
Authority
BR
Brazil
Prior art keywords
sym
saturation
secondary current
flow
detection process
Prior art date
Application number
BR0302851-8A
Other languages
English (en)
Inventor
Rene Allain
Jean Phillippe Puy
Original Assignee
Alstom
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 Alstom filed Critical Alstom
Publication of BR0302851A publication Critical patent/BR0302851A/pt

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
    • H02H1/046—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks upon detecting saturation of current transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images
    • H02H6/005—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images using digital thermal images

Abstract

"PROCESSO DE DETECçãO DE SATURAçãO EM UM TRANSFORMADOR DE CORRENTE". O processo é baseado na associação de pelo menos dois critérios de saturação que permite detectar uma fase de saturação quando esses critérios são satisfeitos simultaneamente. Ele é caracterizado pelo fato de que um primeiro critério de saturação (C~ <sym> sat~) leva em consideração o cálculo de um erro instantâneo de predição (<sym>(Y~ k~)) que é função da diferença entre a corrente secundária medida (I~ s~) e a corrente secundária (<sym>~ s~) predita com o auxílio de um modelo matemático, e pelo fato de que um segundo critério de saturação (C~ <sym> sat~) leva em consideração o fluxo algébrico instantâneo (<sym>~ mes~) calculado por integração da corrente secundária amostrada (Y~ k~) comparando-se para isso esse fluxo algébrico,com um limite positivo (S+, S'+) assim como com um limite negativo (S-, S'-). Essa comparação é inicializada exagerando-se para isso as probabilidades de satisfazer o segundo critério de saturação no começo da medição notadamente por uma superestimação (<sym>_rem_alto) do valor absoluto do fluxo remanente do transformador.
BR0302851-8A 2002-01-29 2003-01-23 Processo de detecção de saturação em um transformador de corrente BR0302851A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0201043A FR2835319B1 (fr) 2002-01-29 2002-01-29 Procede de detection de saturation dans un transformateur de courant
PCT/FR2003/000220 WO2003065533A1 (fr) 2002-01-29 2003-01-23 Procede de detection de saturation dans un transformateur de couorant

Publications (1)

Publication Number Publication Date
BR0302851A true BR0302851A (pt) 2004-03-02

Family

ID=27619717

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0302851-8A BR0302851A (pt) 2002-01-29 2003-01-23 Processo de detecção de saturação em um transformador de corrente

Country Status (7)

Country Link
US (1) US20050140352A1 (pt)
EP (1) EP1470625A1 (pt)
JP (1) JP2005516229A (pt)
BR (1) BR0302851A (pt)
CA (1) CA2474052A1 (pt)
FR (1) FR2835319B1 (pt)
WO (1) WO2003065533A1 (pt)

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SE524866C2 (sv) * 2001-11-23 2004-10-12 Abb Ab Metod och anordning för fellokalisering genom användande av mätningar från två ändar av en luftledning för transmission av växelström
WO2004093115A1 (en) * 2003-04-17 2004-10-28 Myongji University Method for compensating secondary current of current transformers
KR100580428B1 (ko) * 2004-10-11 2006-05-15 명지대학교 산학협력단 왜곡된 변류기의 2차 전류 보상 방법
FR2899339B1 (fr) * 2006-04-04 2008-05-09 Areva T & D Prot & Controle Sa Procede de detection de saturation d'un transformateur de courant
PL382552A1 (pl) * 2007-05-31 2008-12-08 Siemens Aktiengesellschaft Sposób korygowania przebiegu prądu wtórnego zakłóconego przez nasycenie przekładnika prądowego i urządzenie elektryczne do realizacji tego sposobu
JP4700075B2 (ja) * 2008-03-03 2011-06-15 株式会社日本製鋼所 狭帯域能動騒音制御方法および狭帯域能動騒音制御装置
WO2009118048A1 (en) * 2008-03-28 2009-10-01 Abb Technology Ag Phasor estimation during current transformer saturation
US9046553B2 (en) 2008-10-09 2015-06-02 Alstom Grid Uk Ltd Method and apparatus for dynamic signal switching of a merging unit in an electrical power system
CA2779513C (en) 2009-11-05 2016-08-09 Alstom Technology Ltd Method of monitoring the grading margin between time-current characteristics of intelligent electronic devices
TWI408383B (zh) * 2010-04-08 2013-09-11 Univ Nat Taipei Technology Saturation detectors and measuring devices
EP2461476B1 (de) * 2010-12-02 2013-02-13 ABB Technology AG Verfahren zum Betrieb einer Umrichterschaltung
DE102013009587A1 (de) 2012-06-14 2013-12-19 Robert Bosch Gmbh Gerät und Verfahren zur Feststellung der Sättigung eines Magnetkerns eines Transformators
US9671451B2 (en) * 2014-03-21 2017-06-06 Doble Engineering Company System and method for performing transformer diagnostics
CN109375131B (zh) * 2018-07-31 2022-03-04 中国电力科学研究院有限公司 一种电流互感器的饱和速度及饱和深度识别方法及***
US10958062B2 (en) 2018-11-13 2021-03-23 Rockwell Automation Technologies, Inc. Systems and methods for dynamically switching a load of a current transformer circuit
CN111580035B (zh) * 2020-05-27 2022-12-09 国网江苏省电力有限公司 一种电压互感器磁饱和的统计识别方法
CN112068050B (zh) * 2020-09-10 2023-10-13 云南电网有限责任公司电力科学研究院 一种变压器剩磁量化评估与消除方法
CN112198470B (zh) * 2020-09-28 2022-03-01 国网湖南省电力有限公司 电流互感器进出磁饱和状态的实时识别方法
CN112485514A (zh) * 2020-11-14 2021-03-12 国网江苏省电力有限公司营销服务中心 一种电平衡用电量不确定度评价方法
AT525578B1 (de) * 2022-04-01 2023-05-15 Sprecher Automation Gmbh Verfahren zur Sättigungsdetektion eines Stromwandlers
CN114460526B (zh) * 2022-04-12 2022-08-26 华中科技大学 基于随动补偿的变电站电流互感器误差预测方法及***

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2070638A5 (pt) * 1969-12-11 1971-09-10 Compteurs Comp D
DE19633856C1 (de) * 1996-08-16 1997-08-28 Siemens Ag Verfahren zum Gewinnen eines eine Sättigung in einem Stromwandler anzeigenden Erkennungssignals
DE19723422C1 (de) * 1997-06-04 1998-12-10 Siemens Ag Verfahren und Vorrichtung zur Erkennung und Korrektur eines gesättigten Stromverlaufs eines Stromwandlers
US6617839B2 (en) * 2000-07-12 2003-09-09 Yong-Cheol Kang Method for detecting current transformer saturation
FR2818433B1 (fr) * 2000-12-20 2003-02-07 Schneider Electric Ind Sa Dispositif de determination du courant primaire d'un transformateur de courant comportant des moyens de correction de saturation
DE10148815A1 (de) * 2001-10-02 2003-04-10 Abb Patent Gmbh Verfahren und Einrichtung zur Stromwertermittlung unter Einsatz eines Stromwandlers, welcher im Bereich der Kernsättigung arbeitet

Also Published As

Publication number Publication date
FR2835319B1 (fr) 2004-03-12
EP1470625A1 (fr) 2004-10-27
US20050140352A1 (en) 2005-06-30
FR2835319A1 (fr) 2003-08-01
WO2003065533A1 (fr) 2003-08-07
CA2474052A1 (fr) 2003-08-07
JP2005516229A (ja) 2005-06-02

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]