Research On Energy Efficiency Optimization Of Photovoltaic Power Station

With the fast development of photovoltaic(PV)industry,the total installed capacity increases rapidly.Especially in recent years,distributed PV power station developed significantly,and is still attracted to investments.However,with the increase of the installation of PV power plants,various problems were exposed resulting in the actual power generation far below the design value.In order to overcome this situation,this paper carried out the research to the influential factors of power generation for PV power stations and analyzed the influences of irradiance,temperature,dust,angle of installation and power degradation of PV modules.Moreover,this document proposed a set of intelligent monitoring system and detailed both the hardware design and the energy efficiency optimization function for power plants.This system can achieve comprehensive data acquisition by setting up a reference module to monitor devices in power generation system,and could calibrate the acquired data automatically based on IEC 60891.Furthermore,reminders for real-time monitoring of module power degradation,dust cleaning and accurate location of fault could be achieved.This system could help owners of power stations to master the operation status in time and ensure the optimization of energy efficiency of power plants.