关于电力系统相继故障研究的评述

This paper summarizes the key points and state-of-the-art of researches on cascading failures, including the evolution mechanism, mode expression and scene screening criteria. It is suggested that the term "liansuo faults" with Chinese pinyin might be used only if the causality between two successive faults needs stress. Otherwise, the term "xiangji faults" with Chinese pinyin is more suitable for covering successive faults with independent causes or common causes. The methods for identifying key successive-fault-chains can be classified by the applied attention indices, such as the probability-based, the consequence-based and the risk-based ones. These methods and their effects are compared. This paper also points out new challenges and possible breakthroughs on the relevant researches and applications, especially for correct handling of small-probability and high-risk faults. © 2013 State Grid Electric Power Research Institute Press.