A System for Diagnostics and Automatic Control System Monitoring as a Tool to Supervise Operation and Forecast Power Units Preventive Actions

A system which checks the quality of automatic control system and diagnoses power unit’s operation is presented. The system is cooperates with existing DCS systems. Using the received, registered and processed data, the analysis results are presented. They allow the performance evaluation of the control systems and power unit (technological parameters excess and its influence on efficiency, characteristics of executive elements and directive to its linearization, valves tightness, valves and pumps cavitation, start-up costs) in a given period. The received information enables the operators to take preventive action in advance. Consequently, it is possible to obtain more efficient power station’s operation and the exploitation cost reduction.