Self-Healing Grid and Distributed Energy Resource

The developing of bulk grid based on super high voltage and the researching of self-healing grid(SHG) including distributed energy resource(DER) are two distinctive highlights recently.Having presented the developing trend of power system security control,the emergence background,research process and key technique of SHG and DER as well as its relationship with bulk grid are analyzed and discussed in this paper.Finally the suggestion on applying some SHG methodology to current bulk grid construction and operation is put forward.