Technique for Constructing Carbon Emission Flow of Electric-Heat Synergy in Integrated Energy System

In the context of the low-carbon transformation of the power system, traditional carbon emission control at the source side struggles to meet the demands for fair allocation of carbon emission responsibilities. It is urgent to track and trace carbon flows, clarify carbon emission responsibilities between sources and networks, and explore multiple links with potential for carbon emission reduction. While existing research has made some progress on grid carbon flux analysis problems, it remains in its infancy regarding carbon flux analysis in heterogeneous energy flow networks such as gas and heat. With the increasing coupling among electricity, gas, and heat flows, it is significant to characterize the relationship between energy flow and carbon flow in different energy networks. Based on this, an integrated energy system (IES) electric-thermal network carbon flux joint analysis method is proposed. Finally, through comparative case simulations, the differences between various models are analyzed, verifying the effectiveness of the proposed methods.