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

Xianglong Zhang, Hanxin Wu, Mengting Zhu, Mengwei Dong and Shufeng Dong ()
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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

Energies, 2024, vol. 17, issue 5, 1-19

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.

Keywords: micro-energy grid; integrated demand response; dispatchable loads; energy storage; integrated energy systems (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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