摘要
Smart grid is the flag under which the US DoE has been mobilizing efforts to modernize the grid.Electronictization is the first step towards a smart modern grid.It is a process that transforms the grid from electrical and electromechanical(EE)to electronic,electrical and electromechanical(EEE),laying down the very basic foundation for the modern grid.All things grid connected(ATGC)has five groups of essential hardware:1)Grid interface(smart)inverters;2)Hardware for flexible AC transmissions;3)Intelligent electronic power transformers(grid scale);4)Solid-state circuit breaker,current limiters,smart fuses and sensors;and 5)Multi-port bidirectional power&control units.Development and deployment of ATGC will be a grassroots drive to transform the grid from an old passive technology to a new active technology based on electronic power transmission,distribution,processing and protection.Grid modernization represents a win-win-win situation for the environment(Government),consumers,and grid owners/operators.
