Research On Small Wind Power Generation System Based On Fuzzy Control

Oil,natural gas and other non-renewable energy is being depleted,so the development and utilization of new energy is particularly important.As an inexhaustible renewable energy source,wind energy has great development value.It is of great practical and social value to study the utilization rate of wind energy.Therefore,for small wind power systems,this thesis discusses the following:First of all,the uncertain fuzzy logic control algorithm is given.Based on the T-S fuzzy model of small wind power system,according to fuzzy control theory,the fuzzy controller is designed and the closed form expression of the fuzzy controller gain in the form of linear matrix inequality is given.The stability of closed-loop small wind power system is analyzed according to Lyapunov stability theory.The proposed control algorithm is verified by simulation.Secondly,the uncertain fuzzy event triggered control algorithm is given.Based on the T-S fuzzy model of small wind power system,according to fuzzy control theory,the fuzzy controller is designed,and the closed form expression of the fuzzy controller gain is given in the form of in the form of linear matrix inequality.The stability of closed-loop small wind power system is analyzed according to Lyapunov stability theory.Simulation shows that the proposed control algorithm is valid.Finally,the relevant hardware circuits and software programs are designed.With the STM32 series of single-chip microprocessors as the core,the hardware circuit can realize the functions of DC voltage current acquisition,MOS tube drive,wireless communication,wind speed detection,humidity detection,accumulator voltage detection,accumulator charge and discharge,display and alarm.Software design includes the main program design of the control system,sensor-driven sub-program design,communication sub-program design,and display sub-program design.