Low-carbon economic scheduling of multi-energy system based on price interactive response

Abstract

—Regarding the increase of carbon dioxide emissions with growing energy demand, recent emerging technologies for multi-energy system have attracted much attention, as they can effectively couple and coordinate different energies to further control carbon dioxide emissions. This paper focuses on distribution-level multi-energy system and proposes an optimal scheduling method for hydrogen support based on dual-agent energy-carbon price interactive response. Firstly, a hydrogen-supported multi-energy closed-loop flow mode is developed, which provides an effective way to improve renewable energy consumption and brings additional economic revenue of solid carbon. Secondly, a dual-agent energy-carbon price interactive response scheme is designed based on the concept of energy-carbon participation ratio, which takes carbon dioxide emissions of gas load and various carbon revenues into account. This scheme can motivate users for energy demand adjustment and active carbon dioxide reduction by setting energy and carbon prices as two guiding signals. Finally, a bi-level optimal scheduling model is proposed for dual agents of energy service provider and users to maximize the benefit of each side. Case study illustrates that the proposed model can effectively balance benefits of dual agents and has economic advantage of carbon dioxide reduction, while promoting the consumption of high proportion renewable energy and system stability.