This paper introduces the general situation and main technical trends of CIGRE Dublin Symposium 2017

and discusses the papers of each session. The meeting focused on several key aspects including: adaptable market designs

power system technical performance in light of the changing mix of resources and technologies

coordination between distribution system operators(DSOs)and transmission system operators(TSOs)

transmission and distribution overhead lines

dynamic stability of transmission and distribution network

improvement of power system stability and power supply reliability. These sessions reflect the current international academic frontiers and important technical issues in the field of power system.