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Article

Dynamic Optimal Dispatch of Energy Systems with Intermittent Renewables and Damage Model

Department of Chemical and Biomedical Engineering, West Virginia University, P.O. Box 6102, Morgantown, WV 26506, USA
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Received: 18 April 2020 / Revised: 18 May 2020 / Accepted: 21 May 2020 / Published: 28 May 2020
With the increasing penetration of intermittent renewable energy sources into the grid, there is a growing need for process systems-based strategies that integrate dispatchable and variable energy systems for supplying the demand while maintaining grid reliability. The proposed framework corresponds to a dynamic mixed-integer linear programming optimization approach that integrates coal-fired and natural gas-fired power plants, NaS batteries for energy storage, and solar/wind energy to supply the demand. This optimization approach considers an economic goal and constraints to provide power balance while maintaining the overall damage of the natural gas combined cycle (NGCC) power plant drum under a maximum stress as well as avoiding the overheating of the NGCC superheater and reheater. Renewable curtailment levels are also retained at minimum levels. Case studies are analyzed considering different loads and renewable penetration levels. The results show that the demand was met for all cases. Grid flexibility was mostly provided by the NGCC, while the batteries were used sparingly. In addition, considering a CO2 equivalent analysis, the environmental performance was intrinsically connected to grid flexibility and the level of renewable penetration. Stress analysis results reinforced the necessity for an equipment health-related constraint. View Full-Text
Keywords: dynamic MILP; intermittent renewables; power systems; damage model; fossil fuels; energy storage; NaS battery; optimal dispatch dynamic MILP; intermittent renewables; power systems; damage model; fossil fuels; energy storage; NaS battery; optimal dispatch
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MDPI and ACS Style

Kim, R.; Wang, Y.; Vudata, S.P.; Bhattacharyya, D.; Lima, F.V.; Turton, R. Dynamic Optimal Dispatch of Energy Systems with Intermittent Renewables and Damage Model. Mathematics 2020, 8, 868. https://0-doi-org.brum.beds.ac.uk/10.3390/math8060868

AMA Style

Kim R, Wang Y, Vudata SP, Bhattacharyya D, Lima FV, Turton R. Dynamic Optimal Dispatch of Energy Systems with Intermittent Renewables and Damage Model. Mathematics. 2020; 8(6):868. https://0-doi-org.brum.beds.ac.uk/10.3390/math8060868

Chicago/Turabian Style

Kim, Rebecca, Yifan Wang, Sai P. Vudata, Debangsu Bhattacharyya, Fernando V. Lima, and Richard Turton. 2020. "Dynamic Optimal Dispatch of Energy Systems with Intermittent Renewables and Damage Model" Mathematics 8, no. 6: 868. https://0-doi-org.brum.beds.ac.uk/10.3390/math8060868

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