With the increasingly penetration of nonlinear loads in the power system, power quality (PQ) has become a significant issue for the power utilities and end users. In order to improve the PQ, the PQ detection is essential. In this paper, a new method for detecting the PQ disturbances via empirical wavelet transform (EWT) and Hilbert (HT) is proposed. Firstly, EWT is applied to the signal for obtaining different modes. Then the instantaneous amplitude and frequency of each mode are calculated by using the HT. By applying it to two stationary signals and two non-stationary signals, the efficiency of the proposed method is evaluated. With no frequency aliasing like the S transform (ST), the proposed method presents more accurate results than the ST.
Published in | Journal of Electrical and Electronic Engineering (Volume 5, Issue 5) |
DOI | 10.11648/j.jeee.20170505.16 |
Page(s) | 192-197 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
Power Quality Disturbances, Detection, Empirical Wavelet Transform, Hilbert
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APA Style
Chen Xiaojing, Li Kaicheng, Meng Qingxu, Cai Delong, Luo Yi. (2017). Detection of Power Quality Disturbances Using Empirical Wavelet Transform and Hilbert Transform. Journal of Electrical and Electronic Engineering, 5(5), 192-197. https://doi.org/10.11648/j.jeee.20170505.16
ACS Style
Chen Xiaojing; Li Kaicheng; Meng Qingxu; Cai Delong; Luo Yi. Detection of Power Quality Disturbances Using Empirical Wavelet Transform and Hilbert Transform. J. Electr. Electron. Eng. 2017, 5(5), 192-197. doi: 10.11648/j.jeee.20170505.16
AMA Style
Chen Xiaojing, Li Kaicheng, Meng Qingxu, Cai Delong, Luo Yi. Detection of Power Quality Disturbances Using Empirical Wavelet Transform and Hilbert Transform. J Electr Electron Eng. 2017;5(5):192-197. doi: 10.11648/j.jeee.20170505.16
@article{10.11648/j.jeee.20170505.16, author = {Chen Xiaojing and Li Kaicheng and Meng Qingxu and Cai Delong and Luo Yi}, title = {Detection of Power Quality Disturbances Using Empirical Wavelet Transform and Hilbert Transform}, journal = {Journal of Electrical and Electronic Engineering}, volume = {5}, number = {5}, pages = {192-197}, doi = {10.11648/j.jeee.20170505.16}, url = {https://doi.org/10.11648/j.jeee.20170505.16}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeee.20170505.16}, abstract = {With the increasingly penetration of nonlinear loads in the power system, power quality (PQ) has become a significant issue for the power utilities and end users. In order to improve the PQ, the PQ detection is essential. In this paper, a new method for detecting the PQ disturbances via empirical wavelet transform (EWT) and Hilbert (HT) is proposed. Firstly, EWT is applied to the signal for obtaining different modes. Then the instantaneous amplitude and frequency of each mode are calculated by using the HT. By applying it to two stationary signals and two non-stationary signals, the efficiency of the proposed method is evaluated. With no frequency aliasing like the S transform (ST), the proposed method presents more accurate results than the ST.}, year = {2017} }
TY - JOUR T1 - Detection of Power Quality Disturbances Using Empirical Wavelet Transform and Hilbert Transform AU - Chen Xiaojing AU - Li Kaicheng AU - Meng Qingxu AU - Cai Delong AU - Luo Yi Y1 - 2017/12/06 PY - 2017 N1 - https://doi.org/10.11648/j.jeee.20170505.16 DO - 10.11648/j.jeee.20170505.16 T2 - Journal of Electrical and Electronic Engineering JF - Journal of Electrical and Electronic Engineering JO - Journal of Electrical and Electronic Engineering SP - 192 EP - 197 PB - Science Publishing Group SN - 2329-1605 UR - https://doi.org/10.11648/j.jeee.20170505.16 AB - With the increasingly penetration of nonlinear loads in the power system, power quality (PQ) has become a significant issue for the power utilities and end users. In order to improve the PQ, the PQ detection is essential. In this paper, a new method for detecting the PQ disturbances via empirical wavelet transform (EWT) and Hilbert (HT) is proposed. Firstly, EWT is applied to the signal for obtaining different modes. Then the instantaneous amplitude and frequency of each mode are calculated by using the HT. By applying it to two stationary signals and two non-stationary signals, the efficiency of the proposed method is evaluated. With no frequency aliasing like the S transform (ST), the proposed method presents more accurate results than the ST. VL - 5 IS - 5 ER -