考虑阶梯负碳交易与生物质燃气的综合能源系统低碳优化

Low Carbon Optimization of Integrated Energy System Considering Ladder–type Negative Carbon Trading and Biomass Gas

“双碳”背景下,为提高生物质能开发利用率和综合能源系统(Integrated energy system,IES)运行能效,提出了一种考虑阶梯负碳交易的含生物质燃气和碳捕集电厂的综合能源系统优化调度模型。首先,构建含生物质燃气、电转气及碳捕集电厂耦合运行的IES结构。其次,建立一种阶梯型负碳交易机制来弥补传统阶梯型碳交易机制的局限性。然后,将阶梯型负碳交易机制引入IES并构建以系统总成本最小为目标的函数进行求解。最后通过多个场景下算例结果进行对比,分析不同阶梯型负碳交易机制参数敏感性对IES经济性和低碳性的影响,验证了所提阶梯型负碳交易可以有效提高系统经济性,仿真结果也证实了所提模型的有效性。

In order to improve the utilization rate of biomass energy development and the energy efficiency of integrated energy system(IES)operation in the context of“dual-carbon”,an optimal scheduling model of the IES with biomass gas and carbon capture power plants considering ladder-type negative carbon trading is proposed.Firstly,an IES structure with the coupled operation of biomass gas,power-to-gas and carbon capture power plants.Next,a ladder-type negative carbon trading mechanism is established to compensate for the limitations of the traditional ladder-type negative carbon trading mechanism.Then,the ladder-type negative carbon trading mechanism is introduced into the IES and a function with the objective of minimizing the total system cost is contructed and solved.Finally,by comparing the results of several scenarios,and the effects of parameter sensitivity of different ladder-type negative carbon trading mechanisms on the economy and low-carbon nature of the IES are analyzed,which varifies the proposed ladder-type negative carbon trading can effectively improve the system economy,and the simulation results also confirm the validity of the proposed model.