CO-OPTIMIZED SCHEDULING OF HYDROGEN-INTEGRATED ENERGY SYSTEM INTERFACING WITH POWER SUPPLY SYSTEM OF RAIL TRANSIT UNDER DYNAMIC CARBON TRADING

Tan Junfeng; Zhang Fan; Zhao Shuai; Huang Yanlu; Zhou Wei; Lai Jin'gang

doi:10.19912/j.0254-0096.tynxb.2025-0105

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (6) : 21-33. DOI: 10.19912/j.0254-0096.tynxb.2025-0105

CO-OPTIMIZED SCHEDULING OF HYDROGEN-INTEGRATED ENERGY SYSTEM INTERFACING WITH POWER SUPPLY SYSTEM OF RAIL TRANSIT UNDER DYNAMIC CARBON TRADING

Tan Junfeng^1,2, Zhang Fan^1,2, Zhao Shuai^1,2, Huang Yanlu^1,2, Zhou Wei³, Lai Jin'gang³

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Abstract

To realize the intelligent interconnection and interaction between the intelligent integrated energy system （IES） and the power supply system of rail transit, a synergistic optimization strategy for the hydrogen-containing IES and the power supply system of rail transit is proposed based on the dynamic ladder-type carbon trading mechanism. This strategy can reduce the cost of energy supply and utilization, while enhancing the low-carbon energy supply of the multi-flow coupling system and the low-carbon energy consumption of the rail transit system. Firstly, a dynamic ladder-type carbon trading model is designed based on the level of renewable energy and loads in IES. Secondly, according to the electric and thermal output characteristics of gas turbine （GT） and hydrogen fuel cell （HFC）, the traditional combined heat and power （CHP） unit and hydrogen energy unit are coupled by the Kalina cycle to develop a hydrogen-containing flexible energy supply unit, which can enhance the flexibility of the energy supply. Then, a hydrogen-containing IES collaborative optimization model connecting to the power supply system of rail transit is established to achieve cross-system joint optimization of rail transit energy consumption and multiple heterogeneous energy supply units, fully exploring the low-carbon economic operation potential of the system. Simulation results show that the proposed strategy can effectively balance the low-carbon economy and flexibility of multi-energy system scheduling, which can provide references for the synergistic operation of IES and power supply system of rail transit.

Key words

integrated energy system / carbon trading / hydrogen / power supply of rail transit / low-carbon

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Tan Junfeng, Zhang Fan, Zhao Shuai, Huang Yanlu, Zhou Wei, Lai Jin'gang. CO-OPTIMIZED SCHEDULING OF HYDROGEN-INTEGRATED ENERGY SYSTEM INTERFACING WITH POWER SUPPLY SYSTEM OF RAIL TRANSIT UNDER DYNAMIC CARBON TRADING[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 21-33 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0105

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