A Two-Stage Optimization PID Algorithm

A two-stage PID algorithm is proposed with focus on fulfilling some important general requirements such as settling time, overshoot, size of control signal, disturbance rejection and robustness. The proposed method has two main goals. The first is to create an automatic PID computing algorithm giving decent results for a great variety of systems with different design requirements and different practical requirements. The second goal is to ensure that users with only a basic knowledge of automatic control systems can use the method. The proposed method is tested on 35 well known benchmark examples that have various difficulties of control.