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Flexible Regulation and Synergy Analysis of Multiple Loads of Buildings in a Hybrid Renewable Integrated Energy System

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  • Mou Wu

    (The Electrical Engineering College, Guizhou University, Guiyang 550025, China)

  • Junqiu Fan

    (Guizhou Power Grid Co., Ltd., Guiyang 550025, China)

  • Rujing Yan

    (The Electrical Engineering College, Guizhou University, Guiyang 550025, China)

  • Xiangxie Hu

    (The Electrical Engineering College, Guizhou University, Guiyang 550025, China)

  • Jing Zhang

    (The Electrical Engineering College, Guizhou University, Guiyang 550025, China)

  • Yu He

    (The Electrical Engineering College, Guizhou University, Guiyang 550025, China)

  • Guoqiang Cao

    (The Electrical Engineering College, Guizhou University, Guiyang 550025, China)

  • Weixing Zhao

    (Guizhou Power Grid Co., Ltd., Guiyang 550025, China)

  • Da Song

    (Guizhou Power Grid Co., Ltd., Guiyang 550025, China)

Abstract

The insufficient flexibility of the hybrid renewable integrated energy system (HRIES) causes renewable power curtailment and weak operational performance. The regulation potential of flexible buildings is an effective method for handling this problem. This paper builds a regulation model of flexible heat load according to the dynamic heat characteristics and heat comfort elastic interval of the buildings, as well as a regulation model of the flexible electrical load based on its transferability, resectability, and rigidity. An operation optimization model, which incorporates flexible regulation of multiple loads and a variable load of devices, is then developed. A case study is presented to analyze the regulation and synergy mechanisms of different types of loads. Its results show a saturation effect between heat and electrical loads in increasing renewable energy consumption and a synergistic effect in decreasing the operating cost. This synergy can reduce the operating cost by 0.73%. Furthermore, the operating cost can be reduced by 15.13% and the curtailment rate of renewable energy can be decreased by 12.08% when the flexible electrical and heat loads are integrated into the operation optimization of HRIES.

Suggested Citation

  • Mou Wu & Junqiu Fan & Rujing Yan & Xiangxie Hu & Jing Zhang & Yu He & Guoqiang Cao & Weixing Zhao & Da Song, 2024. "Flexible Regulation and Synergy Analysis of Multiple Loads of Buildings in a Hybrid Renewable Integrated Energy System," Sustainability, MDPI, vol. 16(7), pages 1-18, April.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:7:p:2969-:d:1369219
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    References listed on IDEAS

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