Method for visualizing probabilistic quiescent voltage stability domain

A method for visualizing a probabilistic quiescent voltage stability domain comprises the steps of: acquiring an average value of a new energy power generation output, screening fault scenarios, and obtaining a serious fault set; selecting any fault scenario from the serious fault set, and establishing a voltage stability probability evaluation model based on the uncertainty of new energy power generation output; obtaining a cumulative probability distribution function of a load margin according to the voltage stability probability evaluation model; calculating a margin sorting index of a given probability in the fault scenario according to the cumulative probability distribution function of the load margin; repeating the above steps until the margin sorting indexes of all fault scenariosare obtained; and sorting the fault scenarios according to the margin sorting indexes. The method can truly and comprehensively consider the probability characteristics of new energy, effectively discriminates and sorts the q