Optimal Dispatch Strategy for a Flexible Integrated Energy Storage System for Wind Power Accommodation

Yunhai Zhou, Pinchao Zhao, Fei Xu, Dai Cui, Weichun Ge, Xiaodong Chen and Bo Gu
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Yunhai Zhou: College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443000, China
Pinchao Zhao: College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443000, China
Fei Xu: Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
Dai Cui: Jinzhou Power Supply Company, Liaoning Electric Power Co., Ltd., Shenyang 121000, China
Weichun Ge: Jinzhou Power Supply Company, Liaoning Electric Power Co., Ltd., Shenyang 121000, China
Xiaodong Chen: Jinzhou Power Supply Company, Liaoning Electric Power Co., Ltd., Shenyang 121000, China
Bo Gu: Jinzhou Power Supply Company, Liaoning Electric Power Co., Ltd., Shenyang 121000, China

Energies, 2020, vol. 13, issue 5, 1-18

Abstract: The application of the large-capacity energy storage and heat storage devices in an integrated energy system with a high proportion of wind power penetration can improve the flexibility and wind power accommodation capacity of the system. However, the efficiency and cost of the flexible resource should also be taken into consideration when improving the new energy accommodation capacity. Based on these considerations, the authors try to construct a joint optimal scheduling model for day-ahead energy storage and heat storage that considers flexibility. The power supplies and devices will be modeled separately, which enables a universal applicability. The objective function is the minimum cost and wind curtailment. Various practical constraints are taken into account. The mixed integer programming and software GLPK is used to program and solve. The actual operation data of a provincial power grid in northern China is used to conduct simulation analysis in four different working conditions. The results show that the model can maintain economical efficiency under different working conditions. In addition, it can adjust and dispatch various power supplies and devices efficiently, significantly improving wind power accommodation of the system.

Keywords: integrated energy system; flexibility; energy storage; heat storage; optimal dispatching (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: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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