Statler College of Engineering and Mining Resources
Chemical and Biomedical Engineering
Traditional energy production plants are increasingly forced to cycle their load and operate under low-load conditions in response to growth in intermittent renewable generation. A plant-wide dynamic model of a supercritical pulverized coal (SCPC) power plant has been developed in the Aspen Plus Dynamics® (APD) software environment and the impact of advanced control strategies on the transient responses of the key variables to load-following operation and disturbances can be studied. Models of various key unit operations, such as the steam turbine, are developed in Aspen Custom Modeler® (ACM) and integrated in the APD environment. A coordinated control system (CCS) is developed above the regulatory control layer. Three control configurations are evaluated for the control of the main steam; the reheat steam temperature is also controlled. For studying servo control performance of the CCS, the load is decreased from 100% to 40% at a ramp rate of 3% load per min. The impact of a disturbance due to a change in the coal feed composition is also studied. The CCS is found to yield satisfactory performance for both servo control and disturbance rejection.
Digital Commons Citation
Sarda, Parikshit; Hedrick, Elijah; Reynolds, Katherine; Bhattacharyya, Debangsu; National Energy Technology Laboratory; and National Energy Technology Laboratory, "Development of a Dynamic Model and Control System for Load-Following Studies of Supercritical Pulverized Coal Power Plants" (2018). Faculty & Staff Scholarship. 1337.
Sarda, P., Hedrick, E., Reynolds, K., Bhattacharyya, D., Zitney, S. E., & Omell, B. (2018). Development of a Dynamic Model and Control System for Load-Following Studies of Supercritical Pulverized Coal Power Plants. Processes, 6(11), 226. https://doi.org/10.3390/pr6110226