PID optimization tuning and reduction of calculation time based on maximum sensitivity

This paper presents one parameter tuning of PID parameters considering the trade off problem of load disturbance and robustness. And its reduction method for computer calculation is also proposed in this paper. One parameter PID tuning method has been proposed by using maximum sensitivity. PID parameters are calculated by using geometric relationship between circle M_s and L(jω). Several PID parameters are calculated considering the non-convex optimization problem of assessment function. For the performance of disturbance vs robustness, PID parameters are optimized by using integrated absolute error. However, the optimization time is long. Therefore, this paper presents a method to reduce the search range by geometric relationship. Calculation benchmark result shows that the proposed method is effective.