Hilbert-Huang Transform Based Fault Location for Transmission Line

摘要：

Identification and detection of faults generated traveling wave are very important for power grid traveling wave based faults location. The paper presents a new transmission line fault location principle using Hilbert-Huang Transform (HHT). The intrinsic mode function (IMF) components of traveling wave are extracted by using empirical mode decomposition (EMD), and the instantaneous frequency changing time of each IMF component is obtained through Hilbert transform. The arrival time of traveling wave can be detected by its high frequency sudden change point which is extracted in the instantaneous frequency diagram. The HHT based fault location scheme is comparing with that based on Wavelet Transform, the result is unique, and the calculation parameters are fixed. The fault location scheme is simulated with ATP software. Results show that the HHT method can more effectively extract the characteristics of traveling wave, and the location accuracy is little affected by fault positions, fault types and grounding resistances. The fault distance error is no more than ±150m.

关键词： ATP simulation Empirical mode decomposition Fault location Hilbert-Huang Transform Instantaneous frequency Intrinsic mode function Location precision Power system Traveling wave Wavelet Transform

作者: Zhang Xiaoli Zeng Xiangjun Li Zewen Deng Feng

作者单位: School of Electrical & Information Engineering, Changsha University of Science and Technology, Hunan Province, 410076, P. R. China

会议类型: 国际会议

会议名称: The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)

会议地点: 沈阳

会议语种:英文

页码: 1-5

在线出版日期: 2009-07-05（万方平台首次上网日期，不代表论文的发表时间）