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Harmonic suppression of charging station based on harmonic superposition

Chen, Jian, Liang, Jun, Wang, Kewen, Jiang, Songfang, Chen, Mengru and Yu, Jiatong 2022. Harmonic suppression of charging station based on harmonic superposition. Presented at: The 16th Annual Conference of China Electrotechnical Society and China Electrotechnical Society´s 40th Anniversary Conference (ACCES2021), Beijing, China, 24-26 September 2021. Published in: Liang, X., Li, Y., He, J. and Yang, Q. eds. The proceedings of the 16th Annual Conference of China Electrotechnical Society. Lecture Notes in Electrical Engineering Singapore: Springer, pp. 1216-1223. 10.1007/978-981-19-1870-4_128

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With the rapid development of electric vehicles, the high permeability of electric vehicles brings new challenges to the power grid, one of which is harmonic pollution. This paper first analyzes the harmonic characteristics of the two chargers. During the conventional charging process, the harmonic distortion of the two chargers will increase in the later stage of constant voltage, exceeding the requirement of harmonic grid connection. Then the principle and superposition method of harmonic cancellation are introduced, and the feasibility of harmonic cancellation between chargers is verified by simulation. Finally, through the harmonic counteracting function of different chargers, the ratio of chargers is determined, and the harmonic distortion of constant voltage stage is reduced as far as possible, which provides the reference for the harmonic control and the actual construction of charging station.

Item Type: Conference or Workshop Item (Paper)
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: Springer
ISBN: 978-981-19-1869-8
Last Modified: 18 May 2022 14:45

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