| 基于小波模极大值的单端行波故障测距 |
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| 引用本文： | 马丹丹,王晓茹. 基于小波模极大值的单端行波故障测距[J]. 电力系统保护与控制, 2009, 37(3): 55-59 |
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| 作者姓名： | 马丹丹 王晓茹 |
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| 作者单位： | 西南交通大学电气工程学院，四川 成都 610031 |
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| 摘 要： | 将小波变换对信号奇异性的检测功能应用到输电线路的测距中，根据故障行波电流信号线模分量的模极大值性质，提出一种故障测距方案，该方案经过PSCAD/EMTDC仿真验证，具有较高的可靠性和精确性，不受过渡电阻、故障类型及故障距离等的影响。
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| 关 键 词： | 故障测距；小波变换；行波；单端法 |
Single terminal methods of traveling wave fault location based on wavelet modulus maxima |
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| MA Dan-dan,WANG Xiao-ru. Single terminal methods of traveling wave fault location based on wavelet modulus maxima[J]. Power System Protection and Control, 2009, 37(3): 55-59 |
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| Authors: | MA Dan-dan WANG Xiao-ru |
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| Affiliation: | Southwest Jiaotong University;Chengdu 610031;China |
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| Abstract: | This paper discusses wavelet transformation and the singularity detection applied in transmission line fault location,and proposes a new fault location method constructed by combining with module component of traveling-wave and power current.The method is based on the module maximum of wavelet transformation.PSCAD/EMTDC simulation results show that this method is efficient in fault location and the locating accuracy is high,unaffected by different fault type,fault resistance and fault location. |
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| Keywords: | fault location wavelet transform traveling wave single terminal methods |
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