Studying And Simulintion Of Turning Method Based On Fractional Order Proportional Integral Controllers For Servo

In recent years, the design of the fractional order controller has been attracted more and more attention by many of academics and researchers in control area. Because using fractional order controller to tuning the existing system, the system can enhance control performance, increase system robustness.In this paper, we disscused two tuning methods for Fractional Order Proportional Integral (FOPI) controller and Fractional Order [Proportional Integral] (FO[PI]) controller for the typical first-order velocity servo system. This paper proposed an tuning idea and using the Integer Order Proportional, Integral and Derivative (IOPID) controller can not be designed to follow the proposed tuning idea to achieve the robustness requirement. However, the FOPI and FO[PI] controllers designed by the proposed tuning methods can improve the performance and robustness of the first order velocity servo system. Furthermore, following the proposed systematic and analytical design schemes, the FO[PI] controller outperforms the FOPI controller. Simulation results are presented to validate the proposed tuning methods.