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

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 sho...

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Published inEnergies (Basel) Vol. 13; no. 5; p. 1073
Main Authors Zhou, Yunhai, Zhao, Pinchao, Xu, Fei, Cui, Dai, Ge, Weichun, Chen, Xiaodong, Gu, Bo
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.03.2020
Subjects
Accommodation
Alternative energy sources
Boilers
Climbing
Computer simulation
Costs
Economic models
Electric power
Electric rates
Electricity
Electricity distribution
Energy consumption
Energy management
Energy storage
Flexibility
Heat storage
Integer programming
integrated energy system
Objective function
optimal dispatching
Optimization
Power supplies
Simulation analysis
Wind power
Working conditions
China
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Summary: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.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13051073