| 基于反向行波的小电流接地系统故障定位 |
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| 引用本文： | 杨淑英,袁宝. 基于反向行波的小电流接地系统故障定位[J]. 电力科学与工程, 2011, 27(6): 28-32 |
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| 作者姓名： | 杨淑英 袁宝 |
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| 作者单位： | 华北电力大学电气与电子工程学院; |
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| 摘 要： | 在传统的基于模分量行波定位法的基础上,提出了基于小波模极大值和反向故障行波测距的方法,并引用于小电流接地系统中.同时,选取了合适于此定位方法的小波母函教,并总结出了故障定位的算法和流程.最后,用Matlab7.6中PSB时35 kV系统进行了单相接地故障仿真,验证了算法的正确性和精确性.
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| 关 键 词： | 小波变换 奇异性检测 故障定位 小电流接地系统 反向行波 |
Single-phase Ground Fault Location Based on Modulus Maximum and Backward Travelling Wave in Small Current Grounding System |
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| Yang Shuying,Yuan Bao. Single-phase Ground Fault Location Based on Modulus Maximum and Backward Travelling Wave in Small Current Grounding System[J]. Power Science and Engineering, 2011, 27(6): 28-32 |
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| Authors: | Yang Shuying Yuan Bao |
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| Affiliation: | Yang Shuying,Yuan Bao(School of Electrical and Electronic Engineering,North China Electric Power University,Baoding 071003,China) |
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| Abstract: | On the basis of traveling wave location method based on model component,the paper proposes a new method based on modulus maximum and backward traveling wave and used in small current grounding system.Meanwhile,selecting the proper mother wavelets and summarizing the algorithm and processes of fault location.Finally,simulating the single-phase ground fault in the system of 35 kV in PSB of Matlab 7.6,verifying the correctness and accuracy of this algorithm. |
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| Keywords: | wavelet analysis singularity detection fault location small current grounding system backward travelling wave |
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