Social development, is important infrastructure of the grid, but in recent
years, power grid operation environment is constantly changing, such as the rapid
growth of power load, power market operation affects the power grid operation,
preliminary formation of large area power grid interconnection, global climate change,
these problems are put forward higher requirement to the power grid construction.
Smart power grid has the characteristics of informatization and digitalization, so the
important means of building smart power grid is power engineering technology, which
will be analyzed in this paper.