This paper presents an analysis of the Ziegler-Nichols frequency response method for tuning PI controllers, showing that this method has severe limitations. The limitations can be overcome by a simple modification for processes where the time delay is not too short. By a major modification it is possible to obtain new tuning rules that also cover processes that are lag dominated.
|Journal||Asian Journal of Control|
|Publication status||Published - 2004|
Subject classification (UKÄ)
- Control Engineering
- process control
- PID control