Fault location scheme for a multi-terminal transmission line based on current traveling waves

作者：Zhu Yongli^*; Fan Xinqiao

来源：International Journal of Electrical Power & Energy Systems, 2013, 53: 367-374.

DOI：10.1016/j.ijepes.2013.05.004

• Fault location
• Traveling waves
• Multi-terminal transmission lines
• Fast intrinsic mode decomposition
• Teager energy operator

As very little research on the fault location for multi-terminal transmission lines based on current traveling waves only has been done, a new fault location scheme on this is proposed. The proposed scheme is different from the traditional ones based on fundamental impedance. Fast Intrinsic Mode Decomposition (FIMD) and Teager Energy Operator (TEO) are combined (FIMD&TEO) to detect the arrival time of the traveling wave at each terminal. Fault Distance Ratio Matrix (FDRM) and rules for identifying faulted sections of a multi-terminal transmission line are proposed and the method for building FDRM is presented in this paper. After several couples of local and remote terminals connecting through the faulted section are got, their fault distances are calculated by means of a two-ended traveling wave method, and then the fault point can be located by averaging the fault distances. Many simulations under various fault conditions have been done, and the results show that the proposed scheme can locate faults more accurately than existing impedance-based methods.

• 出版日期2013-12
• 单位华北电力大学（保定）; 国网电力科学研究院; 华北电力大学