Research On System Optimization And Application Of Mountain Photovoltaic Power Station

With the vigorous promotion of new energy,solar energy is widely used as a renewable green and clean energy.However,as the construction of photovoltaic power station does not occupy the scarce land resources such as plain and farmland as far as possible,it is gradually developed and constructed in barren mountains,waste land,hills and other places.In this paper,the optimal control and application of photovoltaic power generation in mountainous areas are studied.According to the output characteristics of photovoltaic cells,the mathematical model of photovoltaic cells is theoretically deduced,and the mathematical models under ideal and non-ideal conditions are studied.The output characteristics of photovoltaic cells are obtained by Matlab / Simulink simulation experiment based on the mathematical model.In the photovoltaic power generation system,MPPT control strategy is an important optimization means to improve the photovoltaic power generation.The advantages and disadvantages of traditional MPPT technology are studied.Aiming at the disadvantages of long response time and high model complexity,combined with the model predictive control strategy,an improved MPPT control scheme is proposed,and the MPPT control system based on model predictive control is built on MATLAB /Simulink to verify the feasibility.The working effect of MPPT technology in complex environment is analyzed.Combined with the research method of this paper,Suzhou Lingbi Yongji photovoltaic power station is designed.According to the local landform characteristics,meteorological conditions and solar energy resources distribution,the capacity of the photovoltaic power station and the planning of the power station area are determined.At the same time,the design of the main wiring diagram of the power station is completed,including the selection of devices and equipment,the installation of photovoltaic modules and the development of the upper computer monitoring software of the mountain photovoltaic power generation system Design,Use the PVsyst put forward the specific implementation scheme suitable for the local area.There are 55 figures,11 tables and 63 references in this thesis.