Application of Fault Tree Analysis for Reliability Evaluation and Weak Link Identification of Stadium Power Supply System Using Monte Carlo Simulation

With the increasing frequency of large-scale events, the demand for the reliability of power supply is more stringent. In order to ensure the reliability of the power supply system during the event, this paper proposes a method of reliability evaluation and weak link identification for stadium power supply system. Firstly, fault tree model was constructed with any load power supply failure as the top event, and the corresponding minimum cut set was quickly obtained by Binary decision diagram algorithm. Secondly, the two-state model of the system was established based on Monte Carlo simulation, and the operating states of the system and components were obtained by random sampling simulation. System reliability evaluation and component importance evaluation are conducted to assess system power supply capacity and quantify the contribution of each component to system failure. Finally, the proposed method is applied to a typical stadium power supply system to verify the effectiveness.