| 基于正则化的接地网断开故障诊断方法 |
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| 引用本文： | 祝郦伟,沈晓明,杨帆,刘兴平,王晓宇,刘凯. 基于正则化的接地网断开故障诊断方法[J]. 中国电力, 2016, 49(11): 31-35. DOI: 10.11930/j.issn.1004-9649.2016.11.031.05 |
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| 作者姓名： | 祝郦伟 沈晓明 杨帆 刘兴平 王晓宇 刘凯 |
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| 作者单位： | 1. 国网浙江省电力公司电力科学研究院,浙江 杭州 310014;2. 重庆大学 电气工程学院 输配电装备及系统安全与新技术国家重点实验室,重庆 400044 |
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| 基金项目： | 国家自然科学基金资助项目（51477013）; 研究生科研创新资助项目（CYS14012） |
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| 摘 要： | 为准确检测接地网断开故障,提出一种基于正则化的接地网断开故障诊断方法。通过向故障诊断目标函数中加入一个罚函数来实现对解的阻尼作用,达到使解稳定的目的,从而解决接地网故障诊断中的病态性问题,实现对接地网断开故障的有效检测。通过实验室实验验证了方法的可行性,实验结果表明所提出的断开故障诊断方法可以有效地检测接地网中单支路断开故障及多支路断开故障状态。现场实验验证了该方法的准确性,实验结果表明所提出方法可以对变电站支路断开故障进行有效检测。
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| 关 键 词： | 变电站 接地网 故障诊断 支路故障断开 正则化 故障检测 |
| 收稿时间： | 2016-08-15 |
Break Fault Diagnosis Method of Grounding Grids Based on Regularization |
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| ZHU Liwei,SHEN Xiaoming,YANG Fan,LIU Xingping,WANG Xiaoyu,LIU Kai. Break Fault Diagnosis Method of Grounding Grids Based on Regularization[J]. Electric Power, 2016, 49(11): 31-35. DOI: 10.11930/j.issn.1004-9649.2016.11.031.05 |
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| Authors: | ZHU Liwei SHEN Xiaoming YANG Fan LIU Xingping WANG Xiaoyu LIU Kai |
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| Affiliation: | 1. State Grid Zhejiang Electric Power Corporation Research Institute, Hangzhou 310014, China;2. State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China; |
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| Abstract: | In order to detect break fault of grounding grids, a diagnosis method based on regularization is proposed. This method adds a penalty factor to fault diagnosis function in order to solve ill conditioned problem in reverse fault diagnosis. Experimental results show that proposed method can effectively detect single or multiple break fault in grounding grids, which validate feasibility and effectiveness of proposed method. |
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| Keywords: | substation grounding grids fault diagnosis break fault branch regularization fault detection |
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