SIMULATION AS A TOOL FOR PROCESS DESIGN AND DISTURBANCE ANALYSIS IN INDUSTRIAL POWER PLANTS

Abstract Industrial power plant is a large scale system. During every day operation the plant is exposed to large load disturbances caused by trips and start ups of steam consuming processes. Pressure stability of the plant must be maintained also during the disturbances in order to ensure the trouble free and efficient operation of the production system. The required stability is achieved by using load leveling components for balancing the loads in the steam network. In large scale systems the dynamic simulation is the only possibility to analyze the responses caused by the disturbances and design the process and control system to meet the requirements set for the plant.