首页|Mismatch loss analysis of solar array output power on stratospheric airship during flight

Mismatch loss analysis of solar array output power on stratospheric airship during flight

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Stratospheric airships are long-endurance aerostats and have broad applications.All of the energy required for their operation is obtained from solar radiation,which makes accurate cal-culation of the energy output from the solar array crucial to the design and flight planning of the airships.However,the status of each photovoltaic module in the solar array may differ due to the airship curvature,resulting in mismatch losses and lowered output power,which has not been widely studied.In this paper,an irradiation model and a thermal model are established based on the actual arrangement of the modules.The output power model is established considering the non-uniform radiation in the array.The mismatch losses of the array are analyzed under different flight conditions.The output power of the solar array is decreased by up to 31.6％compared to the ideal state.Moreover,the proportion of mismatch losses increases with latitude,but the maximum mismatch loss power occurs at mid-latitudes.Then,an array reconfiguration method is proposed based on the irradiance dispersion index and position dispersion index.The reconfigured array increases output power by 11.5％and can maintain energy balance in continuous flight.The results can be used to correct the overestimation of the output power during the airship design or to guide the configuration of the solar array.

Stratospheric airshipSolar panelsSolar energyNon-uniform irradiationMismatch loss assessmentReconfiguration

Siyu LIU、Kangwen SUN、Haoquan LIANG、Xinzhe JI、Tong ZOU、Chuan SHAN

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School of Aeronautic Science and Engineering,Beihang University,Beijing 100191,China

Yunnan Innovation Institute,Beihang University,Kunming 650233,China

Institute of Unmanned System,Beihang University,Beijing 100191,China

National Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities,ChinaFundamental Research Funds for the Central Universities,China

51775021YWF-23-JC-02YWF-23-JC-09

2024

10.1016/j.cja.2023.10.014

中国航空学报(英文版)
中国航空学会

中国航空学报(英文版)

CSTPCDEI
影响因子：0.847
ISSN：1000-9361
年,卷(期)：2024.37(2)
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