考虑富氧燃烧的综合能源系统低碳优化可行性研究

Feasibility Study on Low-carbon Optimization of Integrated Energy Systems Considering Oxygen-rich Combustion

综合能源系统(IES)因其能源利用率高和多能源互补特性而被广泛认为是减少碳排放、提高可再生能源消纳的有效途径。将富氧燃烧技术引入IES,构建了考虑富氧燃烧空分系统和多能互补的IES优化调度模型。首先,通过研究富氧燃烧电厂的运行原理及其能量时移特性建立了富氧燃烧电厂模型。其次,将碳捕集装置(CCS)与IES进行耦合,并在富氧燃烧装置(OECP)与电转气装置(P2G)之间建立合作机制,减小IES运行成本,最大程度降低碳排放,促进可再生能源全消纳,提高能源利用率,保证在负荷高峰期较好的富氧燃烧效果和较高的碳捕集水平。最后,仿真分析证明传统电厂引入富氧燃烧技术及多能互补合作机制可以明显降低碳排放量,促进可再生能源的消纳和利用。

The integrated energy system(IES)is widely regarded as an effective way to reduce carbon emissions and improve the consumption of renewable energy due to its high energy utilization rate and multi-energy complementary characteristics.In this paper,the oxygen-rich combustion technology is introduced into an integrated energy system,and an IES optimized scheduling model considering the oxygen-rich combustion air separation system and the multi-energy complementarity is constructed.First,we study the operation principle and energy time shift characteristics of oxygen-rich combustion power plant and establish the oxygen-rich combustion power plant model,then couple the carbon capture device(CCS)with IES,and establish a cooperation mechanism between oxygen-rich combustion plant(OECP)and electric transfer device(P2G),aiming to reduce IES operating cost,minimize carbon emissions,promote renewable energy consumption,so as to improve energy efficiency,ensure good oxygen-rich combustion effect and high carbon capture level at peak load.Finally,the simulation analysis proves that the traditional power plant oxygen-rich combustion technology and energy complementary cooperation mechanism can significantly reduce carbon emissions,promote the renewable energy given and utilization.