Abstract
Improving the utilization rate of renewable energy and realizing low carbon operation of multi-microgrids (MMGs) system is one of the important directions of power system reform. The utilization rate will be increased if energy storage devices are used. In the scenario of MMGs interconnection, the construction cost of energy storage of MMGs system can be significantly reduced under the role of shared energy storage. However, how to reduce the construction cost of energy storage while balancing the capacity and investment costs of energy storage devices is a pressing issue in the present. The configuration of a hybrid electric and thermal energy storage device in a MMGs system is proposed in this paper. Each microgrid can lease the hybrid energy storage device to trade energy with it, and manage energy by coordinating the economic layer and energy layer. Through simulation, it is verified that the MMGs energy management method can effectively improve the efficiency of renewable energy utilization in the MMGs system while reducing the dependence of the system on the external grid. Moreover, the operating cost of the system is reduced by 12.7% under the management method this paper proposed.
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Acknowledgments
This work was supported in part by the National Natural Science Foundation of China under Grant 52107089, in part by China Postdoctoral Science Foundation under Grant 2021M700040, in part by the Fundamental Research Funds for the Central Universities of China under Grant B200201071, in part by China Postdoctoral Science Foundation under Grant 2022T150182, and in part by 2021 Jiangsu Shuangchuang (Mass Innovation and Entrepreneurship) Talent Program under Grant JSSCBS20210248.
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Wu, X., Hua, H., Chen, X., Wang, B., Yu, K., Gan, L. (2023). Energy Management of Multi-microgrids Based on Coordinated Multi-energy Response with Shared Energy Storage. In: **e, K., Hu, J., Yang, Q., Li, J. (eds) The Proceedings of the 17th Annual Conference of China Electrotechnical Society. ACCES 2022. Lecture Notes in Electrical Engineering, vol 1014. Springer, Singapore. https://doi.org/10.1007/978-981-99-0408-2_48
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DOI: https://doi.org/10.1007/978-981-99-0408-2_48
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