PV Cells Power Generation System Modeling Based on Heat Energy Efficiency

Abstract:

Temperature is one of the important factors affecting the power generation efficiency of PV cells. In order to improve the efficiency of photovoltaic power generation systems and heat utilization efficiency, we used Matlab/Simulink to build photovoltaic power system analysis model based on thermal power. By changing the heat and illumination input to the photovoltaic cell model and the heat generated by the battery we got the characteristics and temperature characteristics of the photovoltaic cell the system model, the photovoltaic power generation system model and the output power correction, etc. We got the environmental temperature change equation through the actual air temperature and curve fitting and used real and detailed data to compare the data obtained using the equation for online correction. PV cells temperature factor was used to get the PV cells temperature with the environment temperature changes. In order to get PV module thermal /energy efficiency the dates was processed and analyzed by using Matlab and Excel through actual observation data of school 120KW PV power station. The results showed that power generation efficiency increased and year average efficiency PV improved 21.3279% through the use of some heat about PV cells.

• Periodical: Advanced Materials Research (Volumes 986-987)
• Pages: 1977-1983
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.986-987.1977
• Online since: July 2014
• Authors: Feng Feng Li, Qiu Xuan Wu*, Li Juan Huang, Yu Jie Huang
• Keywords: Heat, PV Cell, PV Power Generation System, Temperature

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