Dynamic carbon market driven multi-stage scheduling strategy for hydrogen integrated energy systems

Decarbonization of the energy system is the key to global carbon neutrality. Hydrogen integrated energy system (HIES) can realize the complementary characteristics of a variety of energy equipment and the time-domain transfer of energy, offering the potential of flexible operation and efficient carbon reduction. However, decarbonization is often hindered by high carbon costs and energy consumption habits. There is an urgent need for a rational carbon market mechanism to stimulate the low-carbon transformation of the energy system, while staying within the acceptable carbon costs and changes in energy consumption habits. To address the above requirements, this paper proposes a HIES multi-stage scheduling method based on dynamic carbon market. A scenario-based pre-scheduling method is established to provide reference for carbon quota adjustment and rolling optimization. The pre-ordering strategy of carbon quota is designed to make the distribution of carbon quota fit the operation of HIES. An intra-day rolling optimization model considering dynamic carbon market is constructed, considering HIES' economic operation and carbon reduction demand. Finally, a case study is used to verify the feasibility and effectiveness of the proposed method. The results show that the adjusted carbon quota scheme reduces HIES operation cost by 1.7% and carbon cost by 36.6%.