2003年全球相继发生了“8.14”美加、“8.28”伦敦、“9.1”悉尼“9.28”意大利等系列停电事故。现代电网的特殊性使偶然的事件、局部的事故能够迅速波及整个网络,并在相联的巨大电网间传递,大城市顷刻间陷入彻底瘫痪。由于范围广、时间长、人口多,经济损失难以计数,严重影响了人民的正常生活,直接危及了公共安全,造成了恶劣的社会影响。 In 2003, a series of power outages such as “8.14”, “8.28”, London, “9.1”, “Sydney” and “9.28” were successively occurring in the world. The particularity of modern power grids enables accidental and local accidents to quickly spread to the entire network and transfer between interconnected huge power grids, and the big cities are immediately paralyzed in an instant. Due to its wide scope, long time, large population and hard-to-count economic losses, it has seriously affected the people’s normal life, directly endangered public safety and caused bad social effects.