Research On Search Method Of Power Grid Cascading Outages Development

This paper on the international scene in recent years the major blackout, power grid failures of the chain of failures, from the chain of failures to analyze the characteristics of the fault mode of development. This paper mainly on the failure of the chain of instability is characteristic analysis and study, and uses artificial intelligence heuristic search method chain failure mode search.This paper used in PETRI nets fault tree model, simulation devices and automatic protection devices action logic, the fault of the timing and causal relationship between chain analysis system fault rule. In this paper, the simulation chain of failures by the withdrawal of principle. This paper also raised a number of evaluation indicators, and reasonable termination of the principle of chain fault simulation combination of different paths chain fault and the possibility of the occurrence of major features, such as the spread of the power grid linkage failure on the development of a guiding role model.