Fractional Order Robust Control Under Variational Working Attitude for Light Tracking System

摘要

This paper concerns a fractional order control technic with robustness for the light tracking systems that are used in quantum communications under variational working attitudes. By introducing fractional order integral, a robust control with high precision tracking ability is obtained. The gain disturbance robustness is guaranteed by the constant phase character of the fractional order integral, while a high error attenuation capacity is ensured by a higher integral order. Optimal system parameters are tuned by maximizing the system order and gain under stable margin restrictions, where a larger phase margin is reserved to avoid infeasible problems in time delay compensation. Simulation experiments illustrate the effectiveness of the proposed fractional order robust control method.