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An Improved Network-Based Traveling Wave Fault Location Method

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5 Author(s)
Feng Deng ; Changsha Univ. of Sci. & Technol., Changsha, China ; Xiangjun Zeng ; Zhiqian Bo ; Shicong Ma
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An improved traveling wave fault location method based on network is presented in this paper. The traveling wave fault location system is composed of fault location units (FLU) and traveling wave analysis host (TWAH). FLU monitor the switch condition, record the arrival time of traveling wave and report the fault data. TWAH analyzes the fault data to determine the fault line and eliminate the invalid data. All the valid data at each side of the fault line are respectively formed two arrays according to the time sequencing. Setting weights for each substation, and the true fault location can be calculated by information fusion technology. Base on the topology of the power grid in Zhuzhou, China, the fault location principle and scheme was proposed. Simulation results of EMTP show that the proposed method can improve the accuracy and reliability of fault location, satisfy the n-1 principle and is also free from the influence of some time recording errors.

Published in:

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Date of Conference:

25-28 March 2011