Study on the electrical performance of underwater photovoltaic modules

2017 International Conference on New Energy and Future Energy System

Li, L.^1 ; He, Y.T.^1 ; Wang, S.H.^1 ; Zhang, C.^1,2

School of Physics and Electronic Science, Chu Xiong Normal University, Chu Xiong, Yunnan Province

675000, China^1

Chuangyuan Fangda Electric Co. Ltd, Tang Shan, He Bei Province

063000, China^2

关键词: Electrical parameter;    Electrical performance;    Light intensity;    Output characteristics;    Output current;    Photovoltaic modules;    Silicon photovoltaic modules;    Test equipments;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/93/1/012051/pdf
DOI  :  10.1088/1755-1315/93/1/012051

来源: IOP

【 摘 要 】

Light intensity directly affects the output current of photovoltaic (PV) modules. The output characteristics of underwater photovoltaic modules are directly affected by light intensity. In this paper, utilizing the matrix simulation of light, and solar module analyzer (PROVA) test equipment, the electrical parameters of polycrystalline silicon PV modules are tested underwater. The relationship between the output characteristics of the PV module and water depth is analyzed. The results show that the output characteristics of PV modules is insensitive to increasing water depth. For the vertically irradiated photovoltaic module, the short-circuit current of the silicon photovoltaic module decreased by 2.39 A, the power decreased by 2.57 W, and the efficiency decreased by 5% when the water depth was increased by 1 cm. Similarly, the when the dip angle is 30 degrees, 45 degrees, 60 degrees, with an increase of water depth by 1cm, the PV module of short-circuit current, power and efficiency were decreased by 2.05 A, 2.1 W, 8%; 1.85 A, 2.07 W, 6.93%; 1.05 A, 0.74 W, 3.67%, respectively. Relative to the 0 degree angle, when the dip angle is 30 degrees, 45 degrees, 60 degrees angle, the percentage drop in PV module of short circuit current is14%, 23%, 56% and the power is 18.3%, 19.5%, 71.2% respectively.