DAY-AHEAD SCHEDULING OF MICRO-GRID WITH BUILDING PHASE CHANGE ENERGY STORAGE SYSTEM

Li Xiaojun; Zhu Lan; Weng Xiuliang

doi:10.19912/j.0254-0096.tynxb.2022-0166

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (6) : 84-90. DOI: 10.19912/j.0254-0096.tynxb.2022-0166

DAY-AHEAD SCHEDULING OF MICRO-GRID WITH BUILDING PHASE CHANGE ENERGY STORAGE SYSTEM

Li Xiaojun¹, Zhu Lan², Weng Xiuliang³

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Abstract

In order to realize the transformation from coal to electricity in the heating field and solve the problem of wind power consumption, building phase change energy storage system is introduced to improve the flexibility and economy of micro grid day ahead scheduling. The model of phase change energy storage system integrated in the building is established by analyzing the temperature change characteristics of phase change energy storage materials. Comprehensively considering indoor and outdoor disturbance factors, a refined building heat balance model with a building phase-change energy storage system for indoor air and building wall is constructed. On this basis, a micro grid day ahead scheduling model is constructed, which takes the power generation cost, power purchasing and selling and wind abandonment cost as the total cost and considers building heat balance. For the nonlinear and differential constraints in the model, the proposed model is transformed into a mixed integer linear programming problem by using piecewise linearization and difference differentiation. An example is given to verify the economy and effectiveness of the model.

Key words

phase change materials / micro-grid / building heat balance / wind power consumption / day-ahead scheduling

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Li Xiaojun, Zhu Lan, Weng Xiuliang. DAY-AHEAD SCHEDULING OF MICRO-GRID WITH BUILDING PHASE CHANGE ENERGY STORAGE SYSTEM[J]. Acta Energiae Solaris Sinica. 2023, 44(6): 84-90 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0166

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