Abstract
It is a key issue for both utility and users to detect out the flicker source in order to solve the contradiction between them and mitigate the disturbance. This paper proposed a new detection method for flicker source in complex power distribution systems with DG. First, generalized S-transform is applied in complex signal processing, for getting the features of multi-source flicker and extracting the flicker envelope. Then, inter-harmonics from relevant flicker sources are gotten with the envelope signal by FFT. Latter, independent criterion for detecting flicker source are constructed according to different inter- harmonics. Finally an optimized comprehensive criterion is constructed with support vector machine method. The test results in a power distribution system in Jiangsu Province, China show that the proposed method has good performance of correctness in case of multi-source flicker condition.
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Acknowledgements
The work was supported by National Natural Science Foundation of China (51577086), Key Laboratory of Control of Power Transmission and Conversion (SJTU) Ministry of Education (2016AA02), Jiangsu Six Talent Peaks Project, Qing Lan Project in Jiangsu Province.
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Lv, G., Wu, Q. (2020). Flicker Source Detection in Power Distribution Systems. In: Xue, Y., Zheng, Y., Rahman, S. (eds) Proceedings of PURPLE MOUNTAIN FORUM 2019-International Forum on Smart Grid Protection and Control. PMF PMF 2019 2021. Lecture Notes in Electrical Engineering, vol 584. Springer, Singapore. https://doi.org/10.1007/978-981-13-9779-0_22
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DOI: https://doi.org/10.1007/978-981-13-9779-0_22
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