多区互联综合能源系统分散协调低碳经济调度

This paper studies the impact of multi-regional integrated energy system interconnection on carbon emissions. First, the decomposition strategy of the integrated energy system in adjacent areas interconnected by flexible DC tie lines is constructed. Then, the carbon consumption in the process of power-to-gas (P2G) is taken into account, and a stepped carbon trading mechanism is introduced. A decentralized coordination scheduling model for a multi-region interconnected integrated energy system is established in which the minimum sum of fuel cost, carbon transaction cost, tie line cost, and wind curtailment penalty is taken as the objective function. The influences of regional interconnection,carbon trading parameters,regional characteristics, and P2G capacity on the system carbon emissions are analyzed by calculation simulation. Studies have shown that multi-regional interconnection is conducive to improving energy utilization and reducing carbon emissions. Reasonable selection of carbon trading parameters, configuration of power-to-gas equipment, and selection of regional interconnection with a low proportion of thermal power units and a large difference in load characteristics can be adopted to more effectively control the system carbon emissions, and promote the wind power consumption of the system.