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Article

Development of a Dynamic Model and Control System for Load-Following Studies of Supercritical Pulverized Coal Power Plants

1
Department of Chemical and Biomedical Engineering, West Virginia University, 395 Evansdale Drive, Morgantown, WV 26506-6070, USA
2
National Energy Technology Laboratory, 3610 Collins Ferry Road, Morgantown, WV 26507, USA
3
National Energy Technology Laboratory, 626 Cochrans Mill Road, Pittsburgh, PA 15236, USA
*
Author to whom correspondence should be addressed.
Processes 2018, 6(11), 226; https://doi.org/10.3390/pr6110226
Received: 8 October 2018 / Revised: 6 November 2018 / Accepted: 14 November 2018 / Published: 17 November 2018
(This article belongs to the Special Issue Modeling and Simulation of Energy Systems)
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. View Full-Text
Keywords: dynamic modeling; process control; load-following; supercritical pulverized coal (SCPC); cycling; time-delay; smith predictor dynamic modeling; process control; load-following; supercritical pulverized coal (SCPC); cycling; time-delay; smith predictor
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MDPI and ACS Style

Sarda, P.; Hedrick, E.; Reynolds, K.; Bhattacharyya, D.; Zitney, S.E.; Omell, B. Development of a Dynamic Model and Control System for Load-Following Studies of Supercritical Pulverized Coal Power Plants. Processes 2018, 6, 226. https://doi.org/10.3390/pr6110226

AMA Style

Sarda P, Hedrick E, Reynolds K, Bhattacharyya D, Zitney SE, Omell B. Development of a Dynamic Model and Control System for Load-Following Studies of Supercritical Pulverized Coal Power Plants. Processes. 2018; 6(11):226. https://doi.org/10.3390/pr6110226

Chicago/Turabian Style

Sarda, Parikshit, Elijah Hedrick, Katherine Reynolds, Debangsu Bhattacharyya, Stephen E. Zitney, and Benjamin Omell. 2018. "Development of a Dynamic Model and Control System for Load-Following Studies of Supercritical Pulverized Coal Power Plants" Processes 6, no. 11: 226. https://doi.org/10.3390/pr6110226

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