| Abstract:The reliability of power substation directly affects the performance of power system. Therefore, a power supply reliability analysis method of power substation based on Bayesian network method is proposed. Firstly, the influencing factors of power supply reliability are deeply explored, the constituent units of power substation are defined, the fault tree model of power substation is constructed, then the common cause failure group is decomposed, combined with the overall architecture of power substation, the Bayesian network model is created, and the Bayesian network toolbox is used to calculate the power supply reliability index value of power substation, Finally, the quantitative analysis of power supply reliability of specific power substation is carried out. The results show that under different working conditions, the evaluation error of power supply reliability of this method is small, meets the normal power supply demand of power substation, and has certain practical application value. |
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