MULTI-TIME SCALE OPTIMAL SCHEDULING OF REGIONAL INTEGRATED ENERGY SYSTEM CONSIDERING POWER ADJUSTABLE MARGIN

Li Zhiying; Wang Zhijie; Wang Hong

doi:10.19912/j.0254-0096.tynxb.2023-1595

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (2) : 255-261. DOI: 10.19912/j.0254-0096.tynxb.2023-1595

MULTI-TIME SCALE OPTIMAL SCHEDULING OF REGIONAL INTEGRATED ENERGY SYSTEM CONSIDERING POWER ADJUSTABLE MARGIN

Li Zhiying, Wang Zhijie, Wang Hong

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Abstract

Aiming at the problem that the energy structure change of integrated energy system leads to the decrease of system flexibility and environmental protection, a multi-time scale optimal scheduling model for regional integrated energy system considering power adjustable margin is proposed in this paper. Firstly, the influence of net load forecasting errors and dispatchable units on the system’s adjustable capacity is analyzed. Secondly, based on the introduction of the stepped carbon trading mechanism, the day-ahead scheduling model considering the dual response mechanism of supply and demand is established to realize the low-carbon economic operation of the system. Then, the optimal scheduling model of intra-day rolling is established with the goal of maximum adjustment margin of dynamic power. Finally, the integrated energy system is constructed and multiple scenarios are set up to perform multi-objective optimization calculations through CPLEX. The simulation results show that the optimized model improves the adjustable margin of the system. Therefore, the proposed optimal scheduling method can realize the system running in low carbon economy, improve the adjustable margin of multi-energy power of the system and enhance the flexibility of the system.

Key words

optimization scheduling / integrated energy system / mathematical models / flexibility supply and demand balance / dynamic power adjustment margin

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Li Zhiying, Wang Zhijie, Wang Hong. MULTI-TIME SCALE OPTIMAL SCHEDULING OF REGIONAL INTEGRATED ENERGY SYSTEM CONSIDERING POWER ADJUSTABLE MARGIN[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 255-261 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1595

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