A New Fault Location Algorithm for T-type Transmission Lines Based on Phase Recognition

[摘要] In view of the traditional method for fault location of T-type transmission lines is not able to realize fault location correctly when the fault occurs near the T-type node, A new algorithm based on phase recognition is proposed about fault location of T-type transmission lines in this article. The algorithm constructs a range function by using the phase property of hyperbolic tangent function, regard the fault position parameter as a given condition, and the phase of function equals to zero when the reference point matches the fault position. Finally, the PSCAD/EMTDC simulation results verify the effectiveness of the algorithm.

[发布机构] State Grid Taian Power Supply Company, Taian; 271000, China^1;Shandong Hising Power Tech Co. LTD., Jinan; 250101, China^2

[效力级别] 无线电电子学

[关键词] Fault location algorithms;Fault position;Hyperbolic tangent function;Phase properties;PSCAD/EMTDC simulations;Reference points