FEEDWATER CONTROL-SYSTEM DESIGN WITH THE KUOSHENG PLANT ANALYZER

The Kuosheng plant analyzer is a fast and accurate simulation program developed on the AD-100 peripheral processor systems. With the feature of the optimization module, the capability of the Kuosheng plant anal yzer is highly improved. It is successfully applied to the feedwater c ontrol system (FWCS) design via the optimal approach eliminating the t edious trial-and-error tuning process. First, the level setpoint chang e transient performed during the startup tests was simulated to verify its accuracy. After verification, it was then applied to design the F WCS with the aid of the optimization module. The objective function is selected as the proper function of the design specifications. The opt imization module adjusts the controller settings automatically by mini mizing the objective function. The design process starts from the spee d loop and continues to the level loop in a systematic way. All the de sign specifications are satisfied with the optimized controller settin gs and the control system performance is improved.