Distributed collaborative optimal dispatch of integrated energy systems considering stepped carbon trading

Abstract

Integrated energy system (IES) is significant to achieve the goal of carbon peak and carbon neutrality. IES is composed of multiple interconnected micro energy grids, with obvious distributed and multi-agent characteristics, and it is very difficult to operate efficiently and cooperatively. This paper proposed a distributed optimization strategy considering stepped carbon trading mechanism. Firstly, the mathematical model of interconnection operation of multi-energy microgrid is established by considering energy cost and carbon trading cost. Then, the distributed solution of the model is realized based on the globally consistent ADMM algorithm. Finally, the optimization results of the model are analysed by a typical case to verify that the proposed strategy can effectively realize the economic and low-carbon operation of the system.