Model predictive controller based on Laguerre functions for large radio telescope servo control system

摘要

This paper deals with discrete-time model predictive controller based on Laguerre functions (MPC-Laguerre) in azimuth servo drive control system of the large radio telescope RT-70. The modelling of electromechanical system large radio telescope with elasticities is given and the model predictive control algorithm with Laguerre functions is developed. Computer simulation results are carried out on Matlab/SIMULINK. In carried out simulation, the operation of conventional PID controller and proposed MPC-Laguerre controller in position loop has been compared. The results of comparison between simulation methods show that predictive controller has fewer errors servo tracking and better behavior.