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| 小电流接地故障谐波分析及其对谐波选线的影响 | |
| 引用本文： | 薛永端,高旭,苏永智,李长安. 小电流接地故障谐波分析及其对谐波选线的影响[J]. 电力系统自动化, 2011, 35(6): 60-64 |
| 作者姓名： | 薛永端 高旭 苏永智 李长安 |
| 作者单位： | 1. 中国石油大学(华东)信息与控制工程学院,山东省东营市,257061 2. 华北电网有限公司,北京市,100053 3. 山东电力集团公司,山东省济南市,250001 4. 山东山工机械有限公司,山东省青州市,262500 |
| 摘 要： | 针对小电流接地系统单相接地故障的谐波选线原理,分析了电源侧、负荷侧和故障点自身的谐波源及其产生的故障谐波电流特征,在分别分析其独立作用对谐波选线影响的基础上,综合分析了多谐波源共同作用时对谐波选线的影响.研究表明:电源侧和负荷侧谐波源起主导作用,其主要通过故障点故障前谐波电压体现;故障点谐波源产生的谐波电流小、作用可忽略;各谐波源的大小、相位和故障点相对谐波源的位置是影响谐波选线的主要因素.仿真验证了上述观点. |
| 关 键 词： | 小电流接地系统 小电流接地故障 谐波分析 故障选线 谐波选线 |
| 收稿时间： | 2010-05-12 |
| 修稿时间： | 2011-03-07 |
Analysis of Harmonic in Non-solidly Earthed Network and Its Influences on Harmonic-based Earth Fault Protection |
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| XUE Yongduan,GAO Xu,SU Yongzhi,LI Chang''an. Analysis of Harmonic in Non-solidly Earthed Network and Its Influences on Harmonic-based Earth Fault Protection[J]. Automation of Electric Power Systems, 2011, 35(6): 60-64 | |
| Authors: | XUE Yongduan GAO Xu SU Yongzhi LI Chang''an |
| Affiliation: | XUE Yongduan1,GAO Xu2,SU Yongzhi3,LI Chang'an4(1.China University of Petroleum(East China),Dongying 257061,China,2.North China Grid Company,Beijing 100053,3.Shandong Electric Power Corporation,Jinan 250001,4.Shandong Construction Machinery Group Co.Ltd.,Qingzhou 262500,China) |
| Abstract: | According to the principles of harmonic-based earth fault protection(identification to the line with a single phase to earth fault) in non-solidly earthed network,the characteristics of non-linear load,system power,fault point as a harmonic source and the faulty harmonic current generated by them are analyzed.Through harmonic-based protection system,the influences of multi-harmonic sources are studied as well.It is discovered that the harmonic sources of system power and non-linear load play dominant roles ... |
| Keywords: | non-solidly earthed network single phase to earth fault harmonic analysis earth fault protection harmonic-based protection |
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