BR9903589A - Correção de saturação de transformador de corrente utilizando redes neurais - Google Patents

Correção de saturação de transformador de corrente utilizando redes neurais

Info

Publication number
BR9903589A
BR9903589A BR9903589-8A BR9903589A BR9903589A BR 9903589 A BR9903589 A BR 9903589A BR 9903589 A BR9903589 A BR 9903589A BR 9903589 A BR9903589 A BR 9903589A
Authority
BR
Brazil
Prior art keywords
current transformer
neural networks
saturation
current measurement
current
Prior art date
Application number
BR9903589-8A
Other languages
English (en)
Inventor
James C Cummins
David C Yu
David T Stone
Ljubomir A Kojovic
Original Assignee
Mc Graw Edison Co
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 Mc Graw Edison Co filed Critical Mc Graw Edison Co
Publication of BR9903589A publication Critical patent/BR9903589A/pt

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
    • 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
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Evolutionary Computation (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Transformers (AREA)

Abstract

Patente de Invenção: <B>"CORREçãO DE SATURAçãO DE TRANSFORMADOR DE CORRENTE UTILIZANDO REDES NEURAIS"<D>. Um método e aparelho para corrigir a saturação em um transformador de corrente, o qual emite uma medição de corrente, é fornecido. Um algoritmo de chaveamento recebe um valor da medição de corrente do transformador de corrente e determina dentro de qual de três faixas o valor cai. Se o valor cai em uma primeira faixa, a medição de corrente é fornecida para um dispositivo de proteção tal como um relé. Se o valor cai em uma segunda faixa, a medição de corrente é fornecida para uma rede neural artificial que produz uma saída que leva em conta a saturação do transformador de corrente. Se o valor cai em uma terceira faixa, a medição de corrente é fornecida para outra rede neural artificial que produz uma saída que leva em conta a saturação do transformador de corrente.
BR9903589-8A 1998-08-13 1999-08-13 Correção de saturação de transformador de corrente utilizando redes neurais BR9903589A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9645998P 1998-08-13 1998-08-13
US09/275,388 US6247003B1 (en) 1998-08-13 1999-03-24 Current transformer saturation correction using artificial neural networks

Publications (1)

Publication Number Publication Date
BR9903589A true BR9903589A (pt) 2000-08-29

Family

ID=26791731

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9903589-8A BR9903589A (pt) 1998-08-13 1999-08-13 Correção de saturação de transformador de corrente utilizando redes neurais

Country Status (8)

Country Link
US (1) US6247003B1 (pt)
EP (1) EP0980129A3 (pt)
KR (1) KR20000017181A (pt)
CN (1) CN1246620A (pt)
AU (1) AU750864B2 (pt)
BR (1) BR9903589A (pt)
CA (1) CA2280281C (pt)
TW (1) TW496026B (pt)

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US6617839B2 (en) * 2000-07-12 2003-09-09 Yong-Cheol Kang Method for detecting current transformer saturation
MY150874A (en) * 2006-10-13 2014-03-14 Tnb Res Sdn Bhd Flashover analysis tool
EP2271948B1 (en) 2008-03-28 2018-06-13 ABB Schweiz AG Phasor estimation during current transformer saturation
CN102087311B (zh) * 2010-12-21 2013-03-06 彭浩明 一种提高电力互感器测量精度的方法
US8576521B2 (en) 2011-08-16 2013-11-05 Schneider Electric USA, Inc. Adaptive light detection for arc mitigation systems
US9053881B2 (en) 2012-08-24 2015-06-09 Schneider Electric USA, Inc. Arc detection with resistance to nuisance activation through light subtraction
CN103761568A (zh) * 2014-01-23 2014-04-30 国家电网公司 基于som神经网络聚类算法的日负荷特征曲线提取方法
WO2017001950A1 (en) 2015-06-29 2017-01-05 Abb Technology Ltd. A method for correcting effect of saturation in current transformer and an intelligent electronic device therefor
US11636668B2 (en) 2017-11-10 2023-04-25 Nvidia Corp. Bilateral convolution layer network for processing point clouds
CN112154340B (zh) * 2018-05-30 2024-03-19 三菱电机株式会社 保护继电装置的特性测试系统
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系统
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
CN110045317B (zh) * 2019-05-29 2022-10-04 中国电力科学研究院有限公司 一种互感器计量误差在线检测方法及系统
US20220375461A1 (en) * 2021-05-20 2022-11-24 Nice Ltd. System and method for voice biometrics authentication
WO2023133449A1 (en) * 2022-01-05 2023-07-13 Ohio State Innovation Foundation Automated systems for diagnosis and monitoring of stroke and related methods
CN115469259B (zh) * 2022-09-28 2024-05-24 武汉格蓝若智能技术股份有限公司 基于rbf神经网络的ct误差状态在线定量评估方法及装置

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US4946393A (en) 1989-08-04 1990-08-07 Amerace Corporation Separable connector access port and fittings
US5082449A (en) 1990-08-28 1992-01-21 Amerace Corporation Removable media injection fitting
US5485545A (en) 1991-06-20 1996-01-16 Mitsubishi Denki Kabushiki Kaisha Control method using neural networks and a voltage/reactive-power controller for a power system using the control method
US5258903A (en) 1991-12-16 1993-11-02 Thomson Consumer Electronics Control circuit and power supply for televisions
JPH06201751A (ja) * 1993-01-06 1994-07-22 Hitachi Cable Ltd 送電線故障区間標定装置
DE4333260C2 (de) 1993-09-27 1997-09-11 Siemens Ag Verfahren zum Erzeugen eines Anregesignals
US5537327A (en) 1993-10-22 1996-07-16 New York State Electric & Gas Corporation Method and apparatus for detecting high-impedance faults in electrical power systems
FR2714771B1 (fr) * 1994-01-06 1996-02-02 Merlin Gerin Dispositif de protection différentielle d'un transformateur de puissance.
US5629870A (en) 1994-05-31 1997-05-13 Siemens Energy & Automation, Inc. Method and apparatus for predicting electric induction machine failure during operation
US5574387A (en) 1994-06-30 1996-11-12 Siemens Corporate Research, Inc. Radial basis function neural network autoassociator and method for induction motor monitoring
US5576632A (en) 1994-06-30 1996-11-19 Siemens Corporate Research, Inc. Neural network auto-associator and method for induction motor monitoring
US5450315A (en) * 1994-09-26 1995-09-12 Square D Company Apparatus using a neural network for power factor calculation
KR0180628B1 (ko) * 1996-05-14 1999-05-15 이종훈 신경회로망을 이용한 변성기의 오차 복원장치 및 방법
KR100199554B1 (ko) 1996-05-18 1999-06-15 김일동 송전선 보호계전시스템에서의 가변 무전압시간 자동재폐로 장치 및 그 방법
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US5796631A (en) 1997-02-10 1998-08-18 Tempo Instrument, Inc. Method and apparatus for monitoring and characterizing power quality, faults and other phenomena in network power systems

Also Published As

Publication number Publication date
EP0980129A3 (en) 2001-01-17
KR20000017181A (ko) 2000-03-25
CA2280281A1 (en) 2000-02-13
AU750864B2 (en) 2002-08-01
CA2280281C (en) 2002-09-03
TW496026B (en) 2002-07-21
AU4444599A (en) 2000-03-09
CN1246620A (zh) 2000-03-08
EP0980129A2 (en) 2000-02-16
US6247003B1 (en) 2001-06-12

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 3A ANUIDADE.

B08G Application fees: restoration [chapter 8.7 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 11A E 12A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2159 DE 22/05/2012.