Research on Adaptive Fuzzy Control of Turboshaft Aeroengine Speed
Conventional adaptive fuzzy control technologies for the speed of turboshaft aviation engines do not accurately adjust the speed and torque parameters of engines,resulting in poor speed control effect.Therefore,an adaptive fuzzy control method of tur-boshaft aviation engine speed is proposed.Firstly,the control logic is fuzzy to obtain the corresponding membership function,com-plete the fuzzy reasoning,and de-fuzzify it by using the center of gravity method.Then,the parameters of the fuzzy subset are taken as the main parameters of the controller to build the turboshaft aero engine speed fuzzy controller.Based on this,the system structure of speed fuzzy controller is constructed to implement the adaptive fuzzy control in the future.Finally,the adjustment rule of the change rate is designed to control the speed fluctuation in a small range,build the parameter adjustment rule table,precisely adjust the engine speed and torque parameters according to the fuzzy self-tuning numerical relationship,and carry out the adaptive fuzzy con-trol of the engine speed.The simulation results show that the proposed method can be used to control the turboshaft aero engine speed of 3 000 rpm,which has a good control effect.The speed fluctuation is between 11.38 rpm and 17.77 rpm,with a step interference of 10 N·m;The average speed fluctuation is between 11.69 rpm and 17.81 rpm,with a step interference of 15 N·m,which is smaller than the comparison methods,indicating that the proposed method has a good application value.
万方数据
维普
