Detection of Power Quality Disturbances Based on EEMD and Teager Energy Operator

doi:10.11930/j.issn.1004-9649.2014.5.35.3

Abstract

Abstract: To detect power quality disturbances, empirical mode decomposition(EMD) theory, ensemble empirical mode decomposition (EEMD) algorithm and the Teager energy operator(TEO) are combined to conduct the method, that is based on EEMD and Teager energy operator, to detect power quality disturbances, in which the power system monitoring signal can be decomposed firstly into different single components of intrinsic mode functions (IMF) with different characteristic time scale by using empirical mode decomposition method, and then the instantaneous amplitudes and instantaneous frequencies of the intrinsic mode functions can be obtained by using Teager energy operator, and the amplitude spectrum of the signal can be given. The method takes full advantage of the rapid response capability of adaptive EEMD and Teager operator, and its validity was verified by the simulation results.

Key words: power quality, disturbance detection, ensemble empirical mode decomposition (EEMD), Teager energy operator

CLC Number:

TM933.4

DENG Wei-quan, ZOU Jin-hui, FAN Yu-gang, WU Jian-de. Detection of Power Quality Disturbances Based on EEMD and Teager Energy Operator[J]. Electric Power, 2014, 47(5): 35-38.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.5.35.3

https://www.electricpower.com.cn/EN/Y2014/V47/I5/35

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