考虑热网约束和碳交易的多区域综合能源系统优化调度

为了提高可再生能源消纳率及减少发电过程中碳排放对环境的污染，提出了一种考虑热网约束和碳交易的多区域综合能源系统优化调度模型。首先，通过热网管道和节点的基本方程描述热网系统，建立区域综合能源系统与热网耦合模型；其次，分析国内外两种碳交易机制的特点，建立以系统运行成本、碳交易成本和可再生能源消纳惩罚成本之和最小为目标函数的低碳经济调度模型；最后，以冬季某热网连接的多区域综合能源系统为例，采用混合整数线性规划对模型进行求解，分析2种碳交易机制对系统经济运行和碳排放的影响。结果表明，通过热网连接多个区域综合能源系统，能充分利用区域间负荷的互补特性，减少系统碳排放，提高可再生能源的消纳率。

Optimal Dispatch of Multi-region Integrated Energy Systems Considering Heating Network Constraints and Carbon Trading

In order to increase the rate of renewable energy accommodation and reduce the environmental pollution caused by carbon emissions during power generation, an optimal dispatch model considering heating network constraints and carbon trading for the multi-region integrated energy systems is proposed. Firstly, a model is established to couple the regional integrated energy system and the heating network with basic equations to represent the heat-supply pipelines and nodes in the heating network system. Secondly, by analyzing the characteristics of two domestic and foreign carbon trading mechanisms, a low-carbon economic dispatch model is established, in which the objective function is to minimize the sum of system operation cost, carbon trading cost and the penalty cost relevant to the renewable energy accommodation. Finally, a mixed integer linear programming is used to solve the problem of a multi-region integrated energy system interconnected with a heating network in winter, and the effects of two carbon trading mechanisms on the economic operation and carbon emissions of the system are analyzed. The results show that the multi-region integrated energy system connected with a heating network can reduce the system carbon emissions and increase the rate of renewable energy accommodation by fully utilizing the complementary characteristics of inter-region loads.