RESEARCH ON KEY ISSUES OF FULL DC TRANSMISSION SCHEME FOR LARGE-SCALE PHOTOVOLTAIC POWER STATIONS

Xu Zheng; Xu Wenzhe; Guo Hanlin; Hua Wen; Qiu Peng; Zhang Zheren

doi:10.19912/j.0254-0096.tynxb.2023-0555

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (8) : 324-331. DOI: 10.19912/j.0254-0096.tynxb.2023-0555

RESEARCH ON KEY ISSUES OF FULL DC TRANSMISSION SCHEME FOR LARGE-SCALE PHOTOVOLTAIC POWER STATIONS

Xu Zheng¹, Xu Wenzhe¹, Guo Hanlin¹, Hua Wen², Qiu Peng^1,2, Zhang Zheren¹

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Abstract

This paper studies the full DC transmission scheme of 118 MWp photovoltaic power station in Xiaoyangshan Bodaozui island of Zhoushan, Zhejiang Province. The construction principle of the full DC transmission system is introduced, and the key technical issues such as the topology selection, the grounding method, and the DC voltage control are clarified. The composition principle of DC-DC converters at all levels is specified. A corresponding simulation system is built on the PSCAD/EMTDC platform and the time-domain simulation verifies the feasibility of the proposed full DC transmission scheme of 118 MWp photovoltaic power station in Xiaoyangshan Bodaozui island.

Key words

photovoltaic power / high voltage DC transmission / DC-DC converters / grounding method / DC voltage control

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Xu Zheng, Xu Wenzhe, Guo Hanlin, Hua Wen, Qiu Peng, Zhang Zheren. RESEARCH ON KEY ISSUES OF FULL DC TRANSMISSION SCHEME FOR LARGE-SCALE PHOTOVOLTAIC POWER STATIONS[J]. Acta Energiae Solaris Sinica. 2024, 45(8): 324-331 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0555

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