Establishing low-carbon, efficient, safe and sustainable energy utilization mode to meet national economic and social development and environmental requirements is an important issue that should be solved urgently in China. From the perspective of energy source import, it's imperative to develop from traditional single energy structure to multi-energy structure containing a variety of energy structures. However, development of multi-energy system is facing unprecedented challenges that mainly stemming from increasing physical entities inside multi-energy system, addition of multi-energy transmission media and improvement inpermeability of renewable energy sources as well as utilization of many cyber-physical fusion technology. Consequently, resulted problems like more sophisticated system variables, more modals, stronger composition, higher dimension of schedule optimization, increasing network hidden security troubles as well as stronger discontinuity and uncertainty, etc., enhance difficulties in modelling and optimizing control on multi-energy system, restrict development of multi-energy system and bring a challenge to the existing advanced control theory. 
Energy Internet as a multi-energy system with the largest coverage reflects features like non-linearity, random, multi-source big data and multi-scale dynamic, etc. A research emphasis and difficulty problem in Energy Internet is how to realize partial and global stability as well as optimum regulation of Energy Internet under acertain goal constraint through proposing effective and reasonable intelligent control methods. 
Now, it is absolutely required for making a significant breakthrough on modeling and optimization control technology under the background of Energy Internet, so as to use new theory, new method and new technology to solve the present problems. Of which, problems like Energy Internet modeling and related Internet communication technology and system safety analysis, energy optimization of Energy Internet, control theory research on energy optimization, conversion and configuration, fault diagnosis and self-cure control research on Energy Internet, basic equipment research and hardware design on Energy Internet and new market trade mechanism and bidding strategy research, etc. are expected to become the research highlights. Discussion and research on these problems can play an important role in impelling settlement of the emphases and difficulties mentioned above in the field of Energy Internet. Thus, this workshop aims at timely dissemination of research in these areas.