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Integrated Demand Response for Micro-Energy Grid Accounting for Dispatchable Loads

Author

Listed:
  • Xianglong Zhang

    (State Grid Economic and Technological Research Institute Co., Ltd., Changping District, Beijing 102209, China)

  • Hanxin Wu

    (Country College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

  • Mengting Zhu

    (Country College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

  • Mengwei Dong

    (Country College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

  • Shufeng Dong

    (Country College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract

Micro-energy networks are the smallest element of integrated energy systems, and tapping into the integrated demand response potential of micro-energy networks is conducive to improving energy use efficiency and promoting the development of new energy sources on a large scale. This paper proposes a day-ahead integrated demand response strategy for micro-energy grid that takes into account the dispatchable loads. Considering the gradient use of thermal energy, a typical micro-energy grid structure including electricity, gas, medium-grade heat, low-grade heat, and cold energy is constructed, a comprehensive energy equipment model is established, and the refined scheduling models of the dispatchable loads are given. On this basis, with the operating economy of the micro-energy grid as the optimization objective, the integrated demand response strategies of tariff-type and incentive-type are proposed. Through case study analysis, it is verified that the proposed strategy can optimize the energy consumption structure of the micro-energy grid under the guidance of time-of-use tariffs, reducing the operating costs. The proposed strategy fully exploits the demand response potential of the micro-energy grid through the dispatchable loads and the multi-energy complementarity of electricity, heat, and cold, realizes the comprehensive coordination and optimization of source-network-load-storage, provides a larger peak-regulating capacity, and exhibits practical applicability in engineering.

Suggested Citation

  • Xianglong Zhang & Hanxin Wu & Mengting Zhu & Mengwei Dong & Shufeng Dong, 2024. "Integrated Demand Response for Micro-Energy Grid Accounting for Dispatchable Loads," Energies, MDPI, vol. 17(5), pages 1-19, March.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:5:p:1255-:d:1352228
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    References listed on IDEAS

    as
    1. Chen, Xi & Wang, Chengfu & Wu, Qiuwei & Dong, Xiaoming & Yang, Ming & He, Suoying & Liang, Jun, 2020. "Optimal operation of integrated energy system considering dynamic heat-gas characteristics and uncertain wind power," Energy, Elsevier, vol. 198(C).
    2. Chen, J.J. & Qi, B.X. & Rong, Z.K. & Peng, K. & Zhao, Y.L. & Zhang, X.H., 2021. "Multi-energy coordinated microgrid scheduling with integrated demand response for flexibility improvement," Energy, Elsevier, vol. 217(C).
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