CN101291056B - 一种长线模型故障选相方法 - Google Patents
一种长线模型故障选相方法 Download PDFInfo
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- CN101291056B CN101291056B CN2008100913495A CN200810091349A CN101291056B CN 101291056 B CN101291056 B CN 101291056B CN 2008100913495 A CN2008100913495 A CN 2008100913495A CN 200810091349 A CN200810091349 A CN 200810091349A CN 101291056 B CN101291056 B CN 101291056B
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- 238000010187 selection method Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 36
- 230000007704 transition Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 22
- 230000016507 interphase Effects 0.000 claims description 16
- 230000035772 mutation Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 abstract description 11
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- 238000004364 calculation method Methods 0.000 description 8
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- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000005094 computer simulation Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 229910001374 Invar Inorganic materials 0.000 description 1
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Abstract
Description
故障参数 | 电流选相结果 | 单点补偿电压选相结果 | 两点补偿电压选相结果 |
故障点:90%,AGδ=15°,Rg=5Ω | AG | AG | AG |
故障点:90%,AGδ=30°,Rg=10Ω | 选相失败 | CAG | AG |
故障点:40%,AGδ=15°,Rg=5Ω | AG | 选相失败 | AG |
故障点:90%,ABGδ=15°,Rg=5Ω | ABG | ABG | ABG |
故障点:90%,ABGδ=30°,Rg=10Ω | 选相失败 | ABG | ABG |
故障点:40%,ABGδ=15°,Rg=5Ω | ABG | 选相失败 | ABG |
Claims (4)
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CN2008100913495A CN101291056B (zh) | 2007-04-17 | 2008-04-07 | 一种长线模型故障选相方法 |
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CN200710039521 | 2007-04-17 | ||
CN200710039521.8 | 2007-04-17 | ||
CN2008100913495A CN101291056B (zh) | 2007-04-17 | 2008-04-07 | 一种长线模型故障选相方法 |
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CN101291056A CN101291056A (zh) | 2008-10-22 |
CN101291056B true CN101291056B (zh) | 2011-06-15 |
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CN2008100913495A Expired - Fee Related CN101291056B (zh) | 2007-04-17 | 2008-04-07 | 一种长线模型故障选相方法 |
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Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011113199A1 (zh) * | 2010-03-17 | 2011-09-22 | 南京南瑞继保电气有限公司 | 一种相间距离保护防止过负荷误动的方法 |
CN102520318B (zh) * | 2012-01-04 | 2014-02-05 | 国家电网公司 | 一种输电线路故障识别方法 |
CN102608498B (zh) * | 2012-03-27 | 2014-04-23 | 国网山东省电力公司 | 新能源输电线路故障选相方法 |
CN103151764B (zh) * | 2013-01-31 | 2014-12-31 | 福建省电力有限公司 | 一种输电线路单相接地故障全分量电压保护方法 |
CN103605292B (zh) * | 2013-11-08 | 2017-01-18 | 广东电网公司电力调度控制中心 | 基于rtds的微机保护一体化测试方法 |
CN104753041B (zh) * | 2015-03-20 | 2017-11-24 | 北京四方继保自动化股份有限公司 | 一种考虑弧光电阻影响的相间阻抗整定计算方法 |
CN106841919B (zh) * | 2017-01-25 | 2019-08-06 | 南京磐能电力科技股份有限公司 | 基于三角形计算的高精度输电线路单端测距方法 |
US11280824B2 (en) | 2017-12-20 | 2022-03-22 | Hitachi Energy Switzerland Ag | High sensitive phase selection method |
CN109085450B (zh) * | 2018-08-24 | 2020-10-09 | 国网河北省电力有限公司电力科学研究院 | 小电流接地系统故障选相方法及装置 |
US20230236235A1 (en) * | 2020-08-11 | 2023-07-27 | Abb Schweiz Ag | Method of determining line fault of power system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1396688A (zh) * | 2002-08-26 | 2003-02-12 | 北京四方同创保护与控制设备有限公司 | 一种基于故障电压比较故障相电流相位判别的选相方法 |
CN1529178A (zh) * | 2003-10-09 | 2004-09-15 | 武汉大学 | 一种电力系统输电线路故障诊断及选相方法 |
CN1599182A (zh) * | 2004-07-21 | 2005-03-23 | 烟台东方电子信息产业股份有限公司 | 电力系统输电线路故障选相元件 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1396688A (zh) * | 2002-08-26 | 2003-02-12 | 北京四方同创保护与控制设备有限公司 | 一种基于故障电压比较故障相电流相位判别的选相方法 |
CN1529178A (zh) * | 2003-10-09 | 2004-09-15 | 武汉大学 | 一种电力系统输电线路故障诊断及选相方法 |
CN1599182A (zh) * | 2004-07-21 | 2005-03-23 | 烟台东方电子信息产业股份有限公司 | 电力系统输电线路故障选相元件 |
Non-Patent Citations (2)
Title |
---|
张庆超等.基于两相电流变换的小电流接地系统故障选线新方法.《电力系统自动化》.2007,第31卷(第8期),75-79. * |
张艳霞等.相电压补偿式方向比较纵联保护.《天津大学学报》.1996,第29卷(第6期),907-912. * |
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Assignee: Shanghai Sunrise Power Control System Co., Ltd. Assignor: Shanghai Sunrise Power Automation Co., Ltd. Contract record no.: 2011990000842 Denomination of invention: Faulty phase selection method based on long wire model Granted publication date: 20110615 License type: Exclusive License Open date: 20081022 Record date: 20110831 |
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