为提高系统能源利用率和降低碳排放量，提出一种考虑双层电转气与需求响应的多能互补综合能源系统低碳运行模型。首先，建立高效用氢的双层电转气多能互补综合能源系统优化模型，研究氢能多方面高效益优势；其次，对需求响应进行建模，根据柔性负荷特性将其分为价格型和替代型需求响应模型；再次，引入阶梯式碳交易机制，抑制系统碳排放；最后，以南宁江南工业园区为例，在MATLAB的CPLEX环境下对模型进行求解，并通过场景对比分析验证。结果表明，该模型能充分调动需求侧参与系统优化，达到节能减排的效果。

A low-carbon optimal operation model of an integrated energy system that takes demand response and double-layer power-to-gas conversion into account was proposed to increase system energy utilization and lower carbon emissions. Firstly, the optimization model of dual-layer electric-gas multi-energy complementary integrated energy system with high efficiency of hydrogen was established to study the advantages of hydrogen energy in many aspects. Secondly, the demand response model was modeled, which was divided into price type and alternative type according to the characteristics of flexible load. Thirdly, a stepped carbon trading mechanism was introduced to curb the carbon emissions of the system. Finally, taking Nanning Jiangnan industrial park as an example, the model was solved in CPLEX environment of MATLAB, and verified by scene comparison analysis. The results show that the model can fully mobilize the demand side to participate in the system optimization and achieve the effect of energy saving and emission reduction.