The direct drive tracking system of Telescope is one multivariable, nonlinear and strong coupling complex mechanical
control system which is disturbed by some nonlinear disturbance such torque ripple, wind disturbance during the tracking
process. the traditional PID control cannot fundamentally solved the contradiction between static and dynamic performance,
tracking data and disturbance .This paper explores a kind of CMAC with nonlinear PID parallel composite control method for
dual redundant telescope tracing servo system. The simulation result proves that combined algorithm based on CMAC and
PID realizes the servo system without overshoot and accelerates the response of the system. What’s more, CMAC feedforward
control improves anti-disturbance ability and the control precision of the servo system.
China SONG telescope would achieve the goal for long time continuous, uninterrupted, full automatic observation and works
in the diffraction limit condition with high tracking precision and reliability, which puts forward a serious challenge to the
tracking control system. This paper explores one sliding mode control algorithm to improve the performance of China SONG
telescope tracking system. The results show that the algorithm can get higher precision, which has high exploration
significance for the telescope tracking system.