Analysis of output power change of polycrystalline silicon solar power generation system considering temperature factor
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GMGDA 2019
Analysis of output power change of polycrystalline silicon solar power generation system considering temperature factor Weihua Li 1 & Jianfeng Wang 2 & Yelin Weng 3 Received: 26 March 2020 / Accepted: 20 August 2020 # Saudi Society for Geosciences 2020
Abstract In order to improve the quality of polysilicon solar power generation system, the output power variation of polysilicon solar power generation system with temperature factor is analyzed in the present paper. The functions of photoelectric current, series resistance, parallel resistance, and temperature are obtained through the current and voltage display equations of solar cells, and the mathematical model of photovoltaic connection circuit in the series/parallel solar power generation system is established. The quadratic interpolation method is used to track the maximum output power of the series/parallel solar power generation system. The influence of temperature on the key parameters such as the maximum output power, the maximum photoelectric efficiency mode output power, and the constant voltage mode output power of the PV/T system composed of polysilicon photovoltaic cells is analyzed. The results show that when the temperature is different, the series circuit decreases by 58.08, 58.12, and 50.51%. The maximum output power, maximum photoelectric efficiency mode output power, and constant voltage mode output power of the polysilicon solar power generation system decreased by 2.05, 2.05, and 4.76%, respectively, with the increase of local temperature, and the parallel circuit decreased by 5.31, 8.73, and 50.51%, respectively, in order to improve the power generation quality of the polysilicon solar power generation system. Keywords Temperature factor . Solar energy . Power generation system . Fixed-voltage mode
Introduction Energy crisis is one of the most concerned focuses in the world at present. Traditional fossil energy supports the industrialization of human beings up to now (Fan et al. 2017), but it is a limited resource. According to BP World Energy Statistics in 2007, it is estimated that according to the current situation of use, global oil can be exploited for 42 years, natural gas can be exploited for 63 years, and coal can be exploited for 295
This article is part of the Topical Collection on Geological Modeling and Geospatial Data Analysis * Weihua Li [email protected] 1
School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China
2
College of Science and Technology, North China Electric Power University, Baoding 071003, China
3
Department of Business Administration, Mokwon University, Daejeon 302729, Korea
years. On the other hand, the use of multiple sources of energy causes environmental deterioration. The Kyoto Protocol sets a timetable for limiting greenhouse gas emissions. While the sustainable development of human society and economic life requires energy conservation, there is an urgent need to develop new sources of energy (Li et al. 2017a), especially renewabl
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