Design of fractional order proportional differentiation controller for second order position servo system

This paper considers a tuning method of factional order proportional derivative (FOPD) controller based on vector model for the second order position servo system. This method is designed to improve the closed-loop system's dynamic performance and robustness. Simulations in MATLAB/Simulink and tests on Quanser semi-physical experiment platform are performed after the design of controller for position servo system. The simulation and experimental results reveal that the designed factional order proportional derivative (FOPD) controller works more effectively than integer order proportional integral derivative (IOPID) controller, with the improved performance of faster response speed and stronger anti-jamming capability.