A novel method of PID tuning for integrating processes

PID control is widely used to control stable processes, however, its application to integrating processes is less common. In this paper, we proposed a new PID controller tuning method for integrating processes with time delay to meet a new robust specification. With the proposed PID tuning method, we can obtain a loop transfer function with the real part close to -0.5. This guarantees both robustness and performance. Simulation examples are given to show the performance of the method.