航空工程进展2024，Vol.15Issue(2)：108-116,9.DOI:10.16615/j.cnki.1674-8190.2024.02.12
基于STPA的飞机交流系统供电转换安全性分析方法研究
Research on the safety analysis method of power supply conversion of aircraft AC system based on STPA
摘要
Abstract
The aircraft AC power generation system is the main source of power for the whole aircraft,so a com-plete safety analysis is required.Traditionally safety analysis pays less attention to the security problems caused by nonlinear interaction between system components.Especially when the support data of the developed model is insuf-ficient,there is a risk of analysis omission.According to the basic characteristics of the power supply conversion process of AC power generation system,this paper constructs a safety control structure chart and identify unsafe control action(UCA)based on the STPA method,and introduces the failure model and effect analysis(FMEA)of similar system to analyse the UCA cause factor and cause scenario.Using formal tool of timed automata theory,the system modeling and verification are carried out.The correctness of this methods is confirmed by expert evalua-tion and accident comparison.The result shows that the introduction of STPA based on traditional safety analysis methods can effectively identify unsafety control action and the causes of accident,which can be an effective supple-ment to the traditional method.关键词
飞机交流发电系统/STPA/UCA/时间自动机理论Key words
AC power system of aircraft/STPA/UCA/the theory of timed automata分类
航空航天引用本文复制引用
田毅,陈杰辉,袁海宵,马世耀..基于STPA的飞机交流系统供电转换安全性分析方法研究[J].航空工程进展,2024,15(2):108-116,9.基金项目
天津市航空装备安全性与适航技术创新中心开放基金(JCZX-2022-KF-07) （JCZX-2022-KF-07）
