Application of multiple emergency load shedding control measures and the influences of Decree No. 599 on the emergency load shedding are analyzed and summed up. The principle of multiple load shedding coordination and multiregional multilevel dispatching coordination is proposed. Based on the analysis

an online monitoring based and accident level considered risk assessment and coordinated decision framework for load shedding is presented. The main features of the framework include the second line of defense of emergency load shedding online monitoring and early warning

the third line of defense of low frequency/voltage load shedding online monitoring and early warning

manual electricity limit in the case of accident monitoring management

as well as risk assessment and coordinated decision on load shedding measures

in which the optimization model for electricity accident risk assessment is designed for load shedding price coordinated decisionmaking. This work is supported by State Grid Corporation of China.