The construction of large ultra-high voltage AC/DC hybrid power grid in China has greatly improved the ability to optimize the large-scale allocation of resources

but it also poses new challenges to the power grid dispatch and control system. This paper analyzes the development situation and characteristic variety of power grids

and new demands for power grid dispatch and control technology support. On this basis

the architecture of a dispatch and control system with the characteristics of physical distribution and logical integration is put forward. Also

the core technologies of basic support

model cloud

big data

dispatch and control based on source-grid-load interaction

integrated security risk prevention and control of large power grid

test verification

and system operation & maintenance

are analyzed in detail.