Journal
ENERGY
Volume 232, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2021.121064
Keywords
Variable renewable energy; Hybrid CSP-CHP system; Stochastic two-stage unit expansion and generation planning model; Power system planning
Categories
Funding
- Scientific Research Project of Education Department of Hubei Province of China [Q20191205]
- Research Fund for Excellent Dissertation of China Three Gorges University and Science and Technology Fund of Three Gorges University
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The study focuses on the application of a hybrid CSP-CHP system in power system planning, with results indicating that the system is expected to play a significant role in the power system from 2020 to 2050, demonstrating high value mainly in terms of operational flexibility and application prospects.
ABSTR A C T The renewable energy penetration level of power grid is forecasted by National Renewable Energy Laboratory (NREL) to reach 60% in 2050, which will bring a great challenge to accommodate the vari-ability and uncertainty of variable renewable energy (VRE). In this paper, a hybrid CSP-CHP system is proposed to provide additional operational flexibility for power system to integrate renewable energy. First, the energy flow framework and the operational flexibility of the hybrid CSP-CHP system are analyzed. Second, a stochastic two-stage unit expansion and generation planning model based on pro-posed hybrid system is adopted to optimize the power system planning by considering generation technologies and policy orientation. Finally, a case study on a modified 40-bus power system is per -formed to research the value of hybrid CSP-CHP in 2020-2050 power system planning. Results show that the hybrid CSP-CHP plant will make up an important portion of renewable generation, and the high value of the proposed system is reflected in operational flexibility and application prospect. (c) 2021 Elsevier Ltd. All rights reserved.
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