Optimization of a Hybrid Energy System with District Heating and Cooling Considering Off-Design Characteristics of Components, an Effort on Optimal Compressed Air Energy Storage Integration

Shang Chen, Ahmad Arabkoohsar, Guodong Chen and Mads Pagh Nielsen
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Shang Chen: Technology Center, Shanghai Electric Power Transmission & Distribution Group Co., Ltd., Shanghai 200060, China
Ahmad Arabkoohsar: Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark
Guodong Chen: Technology Center, Shanghai Electric Power Transmission & Distribution Group Co., Ltd., Shanghai 200060, China
Mads Pagh Nielsen: Department of Energy Technology, Aalborg University, 9220 Aalborg, Denmark

Energies, 2022, vol. 15, issue 13, 1-21

Abstract: In this work, the optimal design of a hybrid energy complex, including wind turbines, an internal combustion engine, and an adiabatic compressed air energy storage system is investigated. A novel bi-level optimization strategy is proposed for optimizing the capacity and operational power of each component of the system based on techno-economic considerations. The article presents information and discussions about the impacts of the partial-load operation of the energy storage system components on the optimal rated power and working strategies. The off-design characteristics are proven to have a huge negative impact on the efficiency and economy of the hybrid system. The efficiency reduction of the compressed air energy storage system is about 21% in summer and 8.9% in winter, when the system is operating in partial-load conditions. The operation cost of the system is reduced significantly when carrying out the proposed bi-level optimization strategy.

Keywords: compressed air energy storage systems; district heating and cooling; differential evolution; off-design performance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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