Integrated Energy Systems Status and Future Works

Integrated Energy Systems (IES) have emerged as a key solution for improving energy efficiency, enhancing renewable energy integration, and supporting low-carbon transitions. This presentation reviews the latest research progress on modeling, simulation, operation, and planning of integrated energy systems that couple electricity, heating, cooling, natural gas, transportation, and emerging hydrogen networks.
Starting from unified energy hub and energy interconnector models, the talk introduces dynamic and multi-time-scale modeling approaches for complex IES, including partial differential–difference–algebraic equation representations. Key techniques for system security analysis, optimal operation, and hierarchical energy management are discussed, with emphasis on demand response, virtual energy storage, and electric vehicle integration.
The presentation further highlights large-scale demonstration projects and planning software applications developed in China, illustrating practical pathways for achieving high renewable penetration and operational flexibility. Finally, future research directions are outlined, focusing on resilience, digital–physical integration, and market-oriented operation of integrated energy systems under carbon neutrality targets.