The Design Of Control System For The Simulation Platform Of Flying Around Satellite

This research topic originates from a factual program. The major aim of thisprogram is to provide a kinematics simulation platform for the spatially distributedtasks of the navigation and control system, which can realize the simulation ofspatially distributed systems by coordinating with the high-level computer. Thispaper mainly study about the design of simulation platform, the hardware andsoftware implementation of servo control system and the trajectory planning for thesatellite simulator in the three-dimension space.First，design of the simulation platform. This part focuses on the research of thedesign of the overall simulation platform, the selection of hardware and itssystematic implementation with DSP.Second，design of the platform for the translational motion servo controlsystem. The mathematical model of servo actuator-linear motor is created first of all.Then the design of translational motion control system is discussed in detail.Besides, the nonlinear friction coming from the low speed operation of the system isstudied and the friction simulation model is created with MATLAB to conduct thesimulation study of the system with nonlinear friction. To meet the requirements ofhigh-precision of servo control system and restrain the unfavorable influences to thecontrol system incurred by the non-linear friction when the servo system works at alow speed, the feed-forward compensation and disturbance observer are utilized inthe design of control system, besides, a simulation with MATLAB is given to showthe validity of our approach.Last，trajectory planning for the satellite simulator. In this part the simulationtask of the simulation platform is analyzed first of all, and then the point-to-pointtrajectory planning method and the B spline trajectory planning method of the singleshaft system are discussed. Eventually the design of trajectory planning based on theresultant motion speed control is finished and the optimal trajectory planningsatisfying the requirements of time and energy is obtained. Its correspondingsimulation with MATLAB is closely followed.