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飞机供配电系统的可靠运行是关系飞机飞行安全的关键因素。以某供配电网络为例介绍了一种适合大型飞机复杂供配电网络的可靠性评估方法,并对该供配电网络的可靠性指标进行了评估和分析。该评估方法利用图论的知识,首先将飞机配电系统抽象为网络图;然后采用深度优先搜索法求出电源点到负荷点的最小路集,进而求出相应的最小割集,找出系统运行的薄弱环节;最后,通过对最小割集的不交化处理结合配电系统部件的原始可靠性数据得出大型飞机供配电系统的可靠性指标。本文方法可以为大型飞机复杂供配电网络的设计和可靠性评估提供参考。
The reliable operation of the aircraft power distribution system is a key factor that affects the flight safety of the aircraft. Taking a power supply and distribution network as an example, this paper introduces a reliability evaluation method suitable for large aircraft complex power supply and distribution network, and evaluates and analyzes the reliability index of the power supply and distribution network. This method uses the knowledge of graph theory to abstract the aircraft power distribution system as a network graph. Then, the depth-first search method is used to find the minimum path set from the power point to the load point, and then the corresponding minimum cut set is obtained to find out the system Finally, the reliability index of large-scale aircraft power supply and distribution system is obtained by combining the original reliability data of the distribution system components with the minimum cut set. The proposed method can provide reference for the design and reliability evaluation of complex aircraft power distribution networks.