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数,并总结出了故障定位的算法和流程。最后,用M atlab7.6中PSB对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。
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.
出处
《电力科学与工程》
2011年第6期28-32,共5页
Electric Power Science and Engineering
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
wavelet analysis
singularity detection
fault location
small current grounding system
backward travelling wave
