Abstract
The accurate calibration of the fault traveling wave head is the key to realize the cable fault traveling wave ranging. Modal aliasing will appear when the traveling wave ranging method based on HHT carries on empirical mode decomposition, so that the ranging accuracy is low. In order to solve this problem, an improved HHT algorithm based on ensemble empirical mode decomposition (EEMD) is put forward. At first, the EEMD algorithm is used to extract the inherent modal function of the fault traveling wave head. Secondly, the instantaneous frequency is calculated by the Hilbert transform. Thirdly, the traveling wave head is accurately calibrated by the abrupt change point of the instantaneous frequency. Then use the double-terminal fault ranging algorithm to achieve more accurate fault location. Finally, the 10 kV distribution network model based on the cable line is built in PSCAD/EMTDC software. A large number of simulation results show that the proposed method is feasible, and it is more precise than traditional methods.
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Tian, S., Li, S., Zhang, Z. (2018). Research on Cable Fault Location Algorithm Based on Improved HHT. In: Jia, Y., Du, J., Zhang, W. (eds) Proceedings of 2017 Chinese Intelligent Systems Conference. CISC 2017. Lecture Notes in Electrical Engineering, vol 460. Springer, Singapore. https://doi.org/10.1007/978-981-10-6499-9_8
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DOI: https://doi.org/10.1007/978-981-10-6499-9_8
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