Using Thermal Energy Storage to Relieve Wind Generation Curtailment in an Island Microgrid

Huanhuan Luo, Weichun Ge, Jingzhuo Sun, Quanyuan Jiang and Yuzhong Gong
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Huanhuan Luo: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110027, China
Weichun Ge: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110027, China
Jingzhuo Sun: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Quanyuan Jiang: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Yuzhong Gong: Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada

Energies, 2021, vol. 14, issue 10, 1-15

Abstract: The uncertainty and intermittency of the available wind resource in nature would potentially cause wind generation curtailment when the flexibility of the integrated power grid is limited, especially in small-scale microgrids for islands. In this paper, an optimal configuration method is proposed to use thermal energy storage (TES) to relieve wind generation curtailment in an island microgrid. The thermal network is modeled along with the electrical network to utilize its regulation capability, while TES is introduced as an additional flexibility resource. The detailed cost models of combined heat and power (CHP) units and TES are presented to realize the objective of minimizing the overall operating cost. The performance of TES in improving wind power utilization is firstly validated by using an electrical boiler (EB) as a benchmark and further analyzed under different scenarios considering the growths of wind power capacity, electrical load, and heat load. The effectiveness of the proposed method is validated using real-world data obtained from the practical island microgrid.

Keywords: island microgrid; thermal energy storage (TES); combined heat and power (CHP); wind generation curtailment (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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