| Abstract |
Energy internet(EI) has developed from concept and theoretical framework to practical operation, attracting more and more attention. The application of complex network analysis(CNA) in EI research is conducive to realizing more secure, economic and sustainable distributed renewable energy supply and utilization in cities, and to realizing energy conservation, emission reduction and energy efficiency improvement in low-carbon cities. Based on the development history of EI, this paper introduces regional energy internet(REI) from two aspects of research scope and main characteristics. At the same time, based on reviewing the graph theory(GT) and CNA's application in energy-related domain, it summarizes the particularity of coupling interconnection between transportation network and social network in REI. The concept of energy self-organization(ESO) and energy community(EC) is introduced based on self-organization theory, meanwhile, the differences and advantages between ESO and previous similar concepts are summarized and compared. On this basis, the key issues of REI are analyzed from the perspective of ECs, including complex network topology modeling, optimal network flow allocation, coordination and complementary control, cascade failure mechanism(the scale of different failures can be enlarged through interdependence) analysis and multi-agent interest interaction game. Meanwhile, main research challenges are summarized and the future work is prospected. Finally, the paper conclude the work and deficiencies-it provides a theoretical basis for realizing a city's collaborative optimization, independent autonomy and efficient low-carbon operation, and improves the application of CNA in urban REI research. |