Research and Application Prospect of PID Auto-tuning

摘要

Now, PID controller is the most widely used controller in the world and various industrial control fields because of its simple structure, easy principle and excellent robustness. The most important and most difficult to grasp of a PID controller is the determination of its three parameters: proportional, integral, and differential. The parameters need to be adjusted in real-time to ensure the stability of the overall system. This paper describes several common PID parameter auto-tuning methods, and explains its basic principles.