其他摘要:This paper gives a brief analysis of the definition, features and functions of smart grid, and then presents the differences between smart grid and the existing power grid. The development of a substation is introduced in detail and the main features of the substation in different processes are summarized. Thus, intelligent substation is an inevitable development trend. Research and analysis is focused on the concept and structural model of intelligent substation as well as the main technologies applying in the construction of intelligent substation.