Smart Integrated Energy System Based on Digital Twin: Research, Application and Outlook

Abstract

Carbon neutrality receives more and more attention in China due to the concerns about the energy crisis and global warming. The smart energy system plays a critical role in carbon reduction and sustainable development of the district. As a key part of the district energy system in China, the smart heating system (SHS) has a wide range of energy sources (including boilers, combined heat, and power plants (CHP plants), waste heat recovery systems, heat pumps, and so on). However, heating systems in China still make extensive use of technologies developed in the 1990s, desperately needing a new paradigm of system analysis, renovation, and operation. This paper will include the recent work in the clean heating technology review, data-driven modeling, flexibility analysis, operation decoupling optimization, substation data mining, and the transition from SHS to integrated energy system (IES). The highlights of this paper will be the introduction of the digital twin (DT) framework which incorporates energy system analysis, data-driven modeling, and system operation optimization. We will show the effectiveness of such a methodology in both SHS cases and future IES cases.