基于故障树分析的航天发射场电力保障技术的研究

Research of Electric Power Guarantee Technology Based on Fault Tree Analysis in Space Launching Site

针对发射场某供电回路故障,应用故障树分析法建立故障树模型,并进行定性和定量分析。讨论了故障最小割集、各底事件的概率重要度和相对重要度,通过短路电流计算,验证了故障树模型及分析的正确性。该方法在电力保障及故障分析定位中发挥了较大作用。

By using fault tree analysis （ FTA）, this paper set up fault tree model of power supply loops in space launching site, discussed the minimal cutset of fault and the probabilistic importance and relatived probabilistic importance of bottom event, testified the correctness of fault tree model through short circuit current calculation. It plays an important role in fault analysis and oriemation.