NOISE INTENSITY ANALYSIS OF DC ARC FAULTS IN LARGE-SCALE PHOTOVOLTAIC POWER STATION

Li Zhihua; Zhong Jieren; Wu Chunhua; Wang Fei

doi:10.19912/j.0254-0096.tynxb.2020-0460

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (5) : 180-186. DOI: 10.19912/j.0254-0096.tynxb.2020-0460

NOISE INTENSITY ANALYSIS OF DC ARC FAULTS IN LARGE-SCALE PHOTOVOLTAIC POWER STATION

Li Zhihua, Zhong Jieren, Wu Chunhua, Wang Fei

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Abstract

In order to compare the noise intensity of DC arc faults in different locations in the photovoltaic array, the steady operating points and resistance characteristics of series arcs and parallel arcs were analyzed separately based on the static volt-ampere characteristics of DC arcs and the output characteristics of the photovoltaic system. From the perspective of DC arc noise in frequency domain, the degree of difficulty to detect the series arcs or parallel arcs with different locations in photovoltaic array were different, which were also confirmed by experimental tests. The results will provide a reference for detecting DC arc faults in large photovoltaic power plants.

Key words

photovoltaic power station / DC arc fault / arc noise intensity / arc fault detection

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Li Zhihua, Zhong Jieren, Wu Chunhua, Wang Fei. NOISE INTENSITY ANALYSIS OF DC ARC FAULTS IN LARGE-SCALE PHOTOVOLTAIC POWER STATION[J]. Acta Energiae Solaris Sinica. 2022, 43(5): 180-186 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0460

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