ABSTRACT

Under the goal of carbon peaking and carbon neutralization, the integrated energy system will accelerate the cleaner and low-carbon structure transition. In addition, high carbon dioxide emissions in some industrial parks give rise to a series of environmental problems. The emergence of power-to-gas technology provides new insight into solving the problem. This empirical research is an attempt for lower carbon emissions and greater application of renewable energy, and a proposal for an expansion planning model for integrated energy systems considering different sources of CO₂. With the introduction of economic conversion coefficients, carbon dioxide emission is converted into economic dimensions and the other cost together to form the objective function with the minimum cost. The constraints of energy balance, energy network, and equipment output are considered. Finally, through the simulation of the calculation example, the total cost of the carbon capture scenario is reduced by 9.9%, and the carbon emission 24.6% compared with the existing park, which verifies that the proposed model considering capturing carbon dioxide can effectively take into account the low carbon and economic efficiency, and meanwhile enhance the renewable energy accommodation.

摘要

在碳达峰和碳中和的目标下，综合能源系统将加速清洁低碳结构转型。此外，部分工业园区二氧化碳排放量高​​，引发了一系列环境问题。电转气技术的出现为解决这一问题提供了新的思路。这项实证研究是对低碳排放和可再生能源更多应用的尝试，以及考虑不同 CO ₂来源的综合能源系统扩展规划模型的建议. 通过引入经济换算系数，将二氧化碳排放量换算成经济维度和其他成本，形成成本最小的目标函数。考虑了能量平衡、能量网络和设备输出的约束。最后，通过算例的模拟，碳捕集场景的总成本与现有园区相比降低了9.9%，碳排放量减少了24.6%，验证了所提出的考虑捕集二氧化碳的模型可以有效地考虑兼顾低碳和经济效益，同时加强可再生能源消纳。