含电转气的微型能源网日前经济优化调度策略

doi:10.19595/j.cnki.1000-6753.tces.191518

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Abstract The micro energy-grid with multiple energy conversion equipment could improve the local accommodation rate of renewable energy resources by mutual conversion between different energy sources. In view of that, this paper proposed a day-ahead optimized scheduling strategy for micro energy grid that containing Power to Gas (P2G). Firstly, based on the research of micro energy-grid dispatching with P2G and gas-storage equipment, the influence mechanism it imposes on the grid economic operation and renewable energy accommodation was revealed. Then, the electrical coupling mechanism between micro turbine and P2G was studied, and a micro energy-grid model that combines electricity, gas, heat and cold power together was established by means of energy hub. Based on this model, the relationship between energy supply, conversion, and consumption was investigated through energy conversion matrix. Finally, by considering the benefits of P2G, a day-ahead optimal scheduling model with the goal of minimizing total operation cost was established and verified by establishing a comparison method. Simulation results demonstrate that proposed strategy plays a positive role in both system operating cost reduction and renewable energy accommodation enhancement.

Key words： Renewable energy accommodation power to gas energy hub micro energy-grid day-ahead optimal economic dispatching strategy

Received: 20 November 2019

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TM73

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	Liu Zhijian
	Liu Ruiguang
	Liang Ning
	Liu Xiaoxin

Cite this article:

Liu Zhijian,Liu Ruiguang,Liang Ning等. Day-Ahead Optimal Economic Dispatching Strategy for Micro Energy-Grid with P2G[J]. Transactions of China Electrotechnical Society, 2020, 35(zk2): 535-543.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191518 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/Izk2/535

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