Research On Solar Energy Generation Control System Based On Fuzzy Method

Solar energy has become the current optimal choice because of clean and renewable advantages.With the sustainable development of the solar energy industry,solar energy research and utilization have been the best in the new energy industry.Solar power can alleviate many negative effects of traditional fossil energy,and has been more and more popular.Therefore,it is of great practical significance for the research of solar power generation.The specific research content of this thesis is as follows:On the basis of investigating and studying the current situation of solar energy development at home and abroad,the design steps and specific expressions of state controller are given according to the nonlinear model of grid-connected inverter,based on the backstepping method,combining fuzzy logic,adaptive technology and command filter method.The stability of solar power closed-loop system is analyzed by using Lyapunov stability theory.The simulation shows that the proposed control method is feasible.According to the characteristics of solar power generation system,the hardware circuit of solar power generation system is designed.The hardware circuit of solar power generation system mainly consists of two parts.The first part is the solar control board circuit,which can realize the functions of voltage detection,current detection,temperature detection,light detection,key control,inverter control,battery drive,DC motor drive,display,storage and communication.The second part is the monitor terminal circuit,which can achieve communication,timing,sound and light alarm and touch screen display functions.Based on the hardware circuit of solar power generation system,the program design of solar control board mainly includes main program,clock chip drive sub-program,temperature detection circuit drive sub-program,storage circuit driver sub-program,inverter drive subprogram,solar panel control sub-program,liquid crystal drive sub-program design,keyboard driver sub-program and wireless communication driver sub-program.Monitoring terminal program design mainly includes main program,communication sub-program,touch screen drive sub-program,timing sub-program and alarm sub-program.These programs can be used to implement the control algorithm of the system.In summary,this paper mainly studies the control algorithm of fuzzy control method in solar power generation system,and completes the hardware design and software design of solar power generation system,which has certain reference value to solar power generation system.