Fractional Control Of VTOV UAV Based PSO

In recent years,with the rapid development of vertical take-off and landing(VTOL)unmanned aerial vehicle(UAV),which has attracted wide attention in academic and applied research,vertical take-off and landing(VTOL)unmanned aerial vehicle(UAV)have the advantages of low cost,portability,flexibility and terminal detection ability.Because of these advantages,the vertical take-off and landing(VTOL)unmanned aerial vehicle(UAV)has an extremely wide application prospects in the civil and military fields,and are therefore receiving widespread and attracted by all the countries in the world.Vertical take-off and landing(VTOL)unmanned aerial vehicles(UAVs)are in urgent need of development.The flight control issues have gradually become a new research hotspot for UAV families.The control strategy of vertical takeoff and landing UAV is deeply discussed in this dissertation,which is based on the fractional theory.At the same time,it performs the mathematical modeling and system analysis of the vertical takeoff and landing UAV system,and studies in the flight control of vertical take-off and landing UAV based on the fractional theory,cascade system theory and other methods.The main content of the research is as follows:The research object of this dissertation is the system of vertical take-off and landing UAV.The vertical take-off and landing UAV flight control system is divided into two subsystems,which can effectively reduce the series of coupling caused by the two controllers.Through this subdivision method,the cumbersome research on control problems can be converted into solving the control problems of two simple subsystems.In addition,this dissertation proposes a new fractional-order feedback control law.The control law can also realize the stable control of the UAV system under the tracking reference signal and use the simulation form to illustrate that the control law has excellent control performance.This thesis is based on the study of fractional order theory and cascade system theory.Based on the research results of fractional feedback control,a simple fractional order control law is designed.The control law can also control the unmanned aerial vehicle system stably by tracking the reference signals.The particle swarm optimization algorithm is used to optimize the parameters in the control law,and compares the minimum energy control law.The advantages and disadvantages of the two control laws are displayed in the form of simulation.This dissertation takes the unmanned aerial vehicle flight model in space as an example,anddesigns a fractional sliding mode control law by combining the above two items.We use the cascade system theory to analyze the stability and use particles group to optimize the algorithm in parameter tuning.In this dissertation,Matlab software is used to simulate the two controllers,and the simulation results are compared and analyzed to verify the validity and reliability of fractional sliding mode control law.