CN100380765C - 一种母线系统保护基于虚拟电流比相的故障判别方法 - Google Patents
一种母线系统保护基于虚拟电流比相的故障判别方法 Download PDFInfo
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- CN100380765C CN100380765C CNB2003101182973A CN200310118297A CN100380765C CN 100380765 C CN100380765 C CN 100380765C CN B2003101182973 A CNB2003101182973 A CN B2003101182973A CN 200310118297 A CN200310118297 A CN 200310118297A CN 100380765 C CN100380765 C CN 100380765C
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CNB2003101182973A CN100380765C (zh) | 2003-12-11 | 2003-12-11 | 一种母线系统保护基于虚拟电流比相的故障判别方法 |
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CNB2003101182973A CN100380765C (zh) | 2003-12-11 | 2003-12-11 | 一种母线系统保护基于虚拟电流比相的故障判别方法 |
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CN1627588A CN1627588A (zh) | 2005-06-15 |
CN100380765C true CN100380765C (zh) | 2008-04-09 |
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100384044C (zh) * | 2005-07-20 | 2008-04-23 | 北京四方继保自动化股份有限公司 | 基于母联电流的母线保护比率制动系数自适应调整方法 |
CN101694937B (zh) * | 2009-10-22 | 2013-02-13 | 国电南京自动化股份有限公司 | 基于稳态量带量方向的母线保护方法 |
CN102074936B (zh) * | 2010-12-15 | 2013-09-18 | 国网电力科学研究院 | 基于故障暂态过程协调各差动继电器动作特性的方法 |
CN102684172B (zh) * | 2012-05-25 | 2015-01-07 | 许继电气股份有限公司 | 基于虚拟母线实现分段死区保护的母差保护方法 |
CN104201658B (zh) * | 2014-09-17 | 2018-01-19 | 国家电网公司 | 一种基于虚拟制动电流的输电线路差动保护方法 |
CN104779590B (zh) * | 2015-01-13 | 2018-05-15 | 国电南瑞科技股份有限公司 | 基于虚拟电流相关度的母线保护方法 |
CN106026040B (zh) * | 2016-08-04 | 2018-05-11 | 南京国电南自电网自动化有限公司 | 一种防止采样异常大数的母线差动保护方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54106841A (en) * | 1978-02-08 | 1979-08-22 | Toshiba Corp | Differential relay |
CN1237025A (zh) * | 1998-05-25 | 1999-12-01 | 东芝株式会社 | 母线继电保护装置 |
JP2001103656A (ja) * | 1999-09-28 | 2001-04-13 | Toshiba Corp | 母線保護継電装置 |
CN1306330A (zh) * | 2000-01-17 | 2001-08-01 | 李元龙 | 以虚拟电流作为保护判据重要元素的微机母线保护 |
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- 2003-12-11 CN CNB2003101182973A patent/CN100380765C/zh not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54106841A (en) * | 1978-02-08 | 1979-08-22 | Toshiba Corp | Differential relay |
CN1237025A (zh) * | 1998-05-25 | 1999-12-01 | 东芝株式会社 | 母线继电保护装置 |
JP2001103656A (ja) * | 1999-09-28 | 2001-04-13 | Toshiba Corp | 母線保護継電装置 |
CN1306330A (zh) * | 2000-01-17 | 2001-08-01 | 李元龙 | 以虚拟电流作为保护判据重要元素的微机母线保护 |
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