In an attempt to improve the utilization efficiency of multi-energy coupling in park-level integrated energy system (PIES), promote wind power consumption and reduce carbon emissions, a low-carbon economic operation optimization model of PIES integrating flexible load and carbon trading mechanism is constructed. Firstly, according to the characteristics of load response, the demand response is divided into four types: which can be shifted, transferred, reduced and replaced. Secondly, the PIES basic architecture is given by considering the combined heat and power generation coupling equipment, new energy and flexible load in the park. Finally, introducing the ladder-type carbon trading mechanism into the system and minimize the total operating cost, the low-carbon economic operation optimization model of PIES is established. The YALMIP toolbox and CPLEX solver are used to solve the example, the simulation results show that the participation of electrical and thermal coupled scheduling and flexible electric or thermal loads can significantly reduce the system operating cost, reduce the load peak-to-valley difference and relieve peak power consumption pressure.

翻译：为提高园区综合能源系统中多能耦合的利用效率、促进风电消纳并降低碳排放，构建了一种融合柔性负荷与碳交易机制的园区综合能源系统低碳经济运行优化模型。首先，根据负荷响应特性，将需求响应分为可平移、可转移、可削减和可替代四类。其次，考虑园区内热电联产耦合设备、新能源及柔性负荷，给出了园区综合能源系统基础架构。最后，将阶梯型碳交易机制引入系统，并以总运行成本最小化为目标，建立了园区综合能源系统低碳经济运行优化模型。采用YALMIP工具箱与CPLEX求解器对算例进行求解，仿真结果表明，电热耦合调度以及柔性电/热负荷的参与能够显著降低系统运行成本、减小负荷峰谷差并缓解用电高峰压力。