Abstract: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.