Research on PID parameter tuning of coordinated control for ultra-supercritical units based on Ziegler Nichols method

Around all kinds of existing PID parameter tuning methods and their development trend, aiming at the various methods of PID tuning in the coordinated control system of ultra-supercritical units, this paper improves the traditional trial-and-error method of parameter tuning, and realizes the PID tuning algorithm based on Ziegler Nichols method. The operation experiments on 1000MW ultra-supercritical units show the effectiveness of the proposed method.