【摘要】 耦合多种能源与设备的综合能源系统供能灵活、能源利用率高，有利于国家能源结构低碳清洁转型。本文从生命周期角度对综合能源系统进行优化，更有助于双碳目标的实现。首先对综合能源系统所使用能源和设备生命周期碳排放进行计算，而后建立含碳交易成本在内的双层优化模型对综合能源系统的容量配置与调度运行进行优化。设立3种场景对综合能源系统与传统供能系统的经济性与碳排放进行分析。结果表明：综合能源系统较传统能源系统具有良好的低碳性与经济性；能源消耗是综合能源系统生命周期碳排放的主体，其中20%以上来自上游各类电厂的间接排放，系统设备带来的碳排放仅有1%左右；综合能源系统优化中考虑生命周期碳排放可以起到减碳的作用，但结合当前的电价、燃气价格及碳交易价格并不占经济优势。更多还原

【Abstract】 The integrated energy system(IES) coupling multiple energy sources and equipment has a flexible energy supply and a high energy utilization rate, which is conducive to the low-carbon and clean transformation of the national energy structure. In this paper, optimizing it from the perspective of the life cycle was more conducive to the realization of the dual-carbon goal. Firstly, the carbon emissions in the life cycle of energy and equipment used in the integrated energy system were calculated, and then a bi-level optimization model including carbon transaction cost was established to optimize the capacity allocation and dispatching operation of the integrated energy system. Three scenarios were set up to analyze the economy and carbon emissions of integrated energy systems and traditional energy supply systems. The results show that the integrated energy system has better low carbon and economy than the traditional energy system. Energy consumption is the main body of carbon emissions in the life cycle of an integrated energy system, of which more than 20% comes from indirect emissions of various upstream power plants, and the carbon emissions brought by system equipment are only about 1%. Considering life cycle carbon emissions in the optimization of integrated energy system can reduce carbon, but it does not occupy an economic advantage by combining the current electricity price, gas price and carbon trading price.更多还原