标题： 基于故障树和仿真工具的卫星电气电源子系统可靠性故障分析与建模 显示英文标题

标题： Reliability-Based Fault Analysis and Modeling of Satellite Electrical Power Subsystems Using Fault Tree and Simulation Tools

摘要： 卫星最重要的子系统之一是其电力子系统。 卫星电源系统发生故障会导致卫星全部或部分失效。 在任务开始前计算电源系统的整体可靠性对于改进卫星电源系统的设计至关重要。 电源系统的每个组件可能由于压力、发射压力和运行条件而出现故障。 因此，在本文中，首先使用MATLAB对电气电源系统的组件进行健康和故障系统的仿真。 最后，通过绘制故障树来分析电源子系统的可靠性、整个任务的可靠性、电源系统的故障率以及任务的整体故障率，这些数据通过Windchill软件计算得出。 最后，实现了0.999的总任务保证，表明模拟系统的高可靠性。 显示英文摘要

摘要： One of the most important satellite subsystems is its electric power subsystem. The occurrence of a fault in the satellite power system causes the failure of all or part of the satellite. Calculating the overall reliability of the power system before the mission is crucial in improving the design of the satellite power system. Each component of the power system may malfunction due to pressure, launch pressure, and operating conditions. Accordingly, in this paper, first, a healthy and faulty system for the components of the electrical power system is simulated with MATLAB. Finally, by drawing a fault tree to analyze the reliability of the power subsystem, overall mission reliability, power system fault rate, and overall fault rate of the mission are calculated by Windchill software. Finally, a total mission assurance of 0.999 was achieved, indicating the high reliability of the simulated system.