Research on Photovoltaic Power Generation Characteristics of Small Ocean Observation Unmanned Surface Vehicles

Weiwei Yang, Bingzhen Wang (), Wei Ke, Shuyuan Shen and Xiao Wu
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Weiwei Yang: National Ocean Technology Center, Tianjin 300112, China
Bingzhen Wang: National Ocean Technology Center, Tianjin 300112, China
Wei Ke: National Ocean Technology Center, Tianjin 300112, China
Shuyuan Shen: National Ocean Technology Center, Tianjin 300112, China
Xiao Wu: National Ocean Technology Center, Tianjin 300112, China

Energies, 2024, vol. 17, issue 15, 1-19

Abstract: Under the action of waves, a small unmanned surface vehicle (USV) will experience continuous oscillation, significantly impacting its photovoltaic power generation system. This paper proposes a USV photovoltaic power generation simulation model, and the efficiency of photovoltaic MPPT control under wave action is studied. A simulation model for solar irradiance on solar panels of USV under wave action is established based on CFD and solar irradiation models. The dynamic changes in irradiance of USV solar panels under typical wave conditions are analyzed. The MPPT efficiency of USV photovoltaic power generation devices under continuously changing irradiance conditions is studied on this basis. The simulation research results indicate that waves and solar altitude angles significantly impact the instantaneous irradiation energy of USV photovoltaic devices. However, the impact of waves on the average irradiance is relatively tiny. The sustained oscillation of irradiance poses certain requirements for the Maximum Power Point Tracking (MPPT) control frequency of USV photovoltaic systems; a disturbance control frequency of no less than 50 Hz is proposed.

Keywords: USV; ocean observation; wave; photovoltaic power; solar irradiance; MPPT (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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