the scale of power grid equipment in Xiong’an New Area will grow rapidly.Under the traditional mode of operation and maintenance
a large number of operation and maintenance personnel are needed
and it is difficult to obtain equipment information timely and comprehensively.The digital twin system of substation is proposed.By using real-time sensing data and 3 D digital model of equipment
the mapping body of real substation is constructed in virtual space to realize remote inspection
online diagnosis and life-cycle asset management of substation.This system has been used in 220 kV Jucun substation
and verified the effectiveness and advancement of the system.