Research Of Photovoltaic System Based On Fuzzy Control Boost Converter

Solar photovoltaic technology and industry is not only important to the modern worldenergy supply,also has great potential for development,to become the next major source ofenergy.In this paper,the solar power system as the object of study,to maximize the efficiencyof solar energy as the main target,integrated control of photovoltaic power generationsystem,including the theory and simulation of MPPT control and boost conversion circuits.First,on the significance of the study of solar photovoltaic power generation,home andabroad as well as its broad development prospects were introduced,and the main contents ofthe given topic.Secondly,based on the basis of solar photovoltaic technology,briefly describe thecomposition of the photovoltaic power generation system and species of and solarphotovoltaic system,give several typical block diagram of PV type structure diagram, brieflydescribe several simple application of photovoltaic power generation system.Again,describe various simple classification of photovoltaic power generationsystem(monocrystalline silicon solar photovoltaic cell,amorphous silicon thin-film solarphotovoltaic cell,Polycrystalline silicon thin-film solar photovoltaic cell),introduce theprinciple of solar photovoltaic,mathematical model and characteristics of photovoltaic cell,based on PV array output characteristic equation,use MATLAB/SIMULINK to build a solarphotovoltaic array simulation model,and achieve the PV array output characteristic curvesimulation,overcome the traditional PV array model complex process shortcomings, provide abetter guarantee for the realization of basic guiding theory, system simulation and systemdesign.Final,simply describe the principles of photovoltaic maximum power point trackingsystem,analysis and compare of several common methods to track the maximum power(constant voltage method,disturbance observer method, conductance increment method),thistext choose fuzzy control Boost converter to control photovoltaic system, in the digitalsimulation software MATLAB/SIMULINK to scarry out modeling and simulation,from thesimulation results,when the solar irradiance and temperature change,this method can achievePV module maximum power point tracking.