Low-Carbon and Flexible Scheduling of Integrated Energy Systems Considering Multi-utilization of Hydrogen Energy

Abstract

In order to improve the economy, low carbon and flexibility of the traditional hydrogen-containing integrated energy system, a low-carbon and flexible scheduling model of integrated energy system with multiple utilization of hydrogen energy is proposed. Firstly, based on an analysis of the source-load dual-side uncertainty, a source-load dual-side uncertainty model was established, and typical source-load dual-side scenarios were generated using the Latin hypercube sampling method and K-means clustering. Secondly, an integrated hydrogen-enabled energy system model was developed with its core comprising carbon capture power plants, multi-utilization hydrogen conversion devices, and energy storage components, to fully exploit the potential of the hydrogen-containing integrated energy system in terms of economy, low carbon and flexibility. Finally, the stepped carbon emission trading mechanism and time of use electricity pricing mechanism were introduced to establish an optimal scheduling model with the objective function of minimizing the sum of economic and environmental costs, and the CPLEX solver was used to solve the model. The case study shows that the proposed integrated hydrogen-enabled energy system model effectively reduces the operating costs and CO2 emissions, realizing the flexible operation of each energy conversion device and multi-energy complementarity.