Research On Wind Energy Generation Control System Based On Fuzzy Method

With the rapid economic development,the shortage of energy and the conflict between environmental pollution are becoming more and more outstanding.The use of clean energy and renewable energy to replace traditional fossil energy is imminent.In clean energy,wind energy is rich in reserves,pollution-free and renewable.These advantages are used by humans,and wind power generation is the main method of using wind energy.This thesis designs the hardware system and the software system of the small wind power generation control system,studies the fuzzy control of maximum power point voltage strategy and event-triggered maximum power tracking voltage control strategy,and obtains some meaningful research results.The main work of this thesis includes:(1)For the rectification part of the wind power generation system,establish a T-S fuzzy model of the rectification part,use the maximum power point voltage control strategy and the event-triggered maximum power point voltage control strategy respectively,and use the linear matrix inequality tool to calculate the maximum power point tracking(MPPT)fuzzy controller gain.According to Lyapunov stability theory,it is proved that the proposed control algorithm can make the rectifier part uniformly ultimately bounded,and the proposed method is validated by simulation.(2)According to the control requirements of the wind power generation system,the hardware circuits of the controller and the user terminal are designed.The wind power generation controller is mainly composed of the minimum system circuit,the speed detection circuit,the AC side voltage detection circuit,the DC side voltage detection circuit,and the wind speed detection circuit,the temperature detection circuit,the power supply circuit,the display circuit,the wireless communication circuit,the MPPT drive circuit,and the clock circuit.The user terminal includes a minimum system circuit,a power supply circuit,a clock circuit,a wireless communication circuit,a display circuit,and a bluetooth transmission circuit.(3)Software design is based on the hardware circuit of the wind power generation system.The controller software part mainly includes: the controller main program,interrupt service subprogram,initialization subprogram,voltage and current analog acquisition subprogram,PWM subprogram,LCD display subprograms,etc.The software of the user terminal part mainly includes the main program,interrupt service subprogram,receiving subprogram,display subprogram,bluetooth communication subprogram,etc.In conclusion,this thesis studies the maximum power tracking control algorithm of the wind power generation system,and designs the hardware and software of the wind power generation control system.The research results have certain theoretical significance and application value for small wind power generation systems.