Analysis of cascading failure of circuit systems based on load-capacity model of complex network

Cascading failure are common in the large scale circuit system. We apply a cascading failure model to a circuit system, which is based on the flow redistribution. The vulnerability and robustness of a circuit system is studied by using the model under two initial failures: the random failure and the max-load failure. The results show that a single-point failure can influence the system performance, especially the failure happens to the component having relative large load. That is important and useful to provide theoretical guidance of circuit design optimization.