摘要
准确衡量与分析接触网系统失效的可能性与后果严重程度,并及时评估其失效风险,为制定风险控制措施提供理论依据。首先建立接触网失效故障树,然后由ITE规则生成BDD结构。通过自上而下递归访问BDD结构各结点来计算顶事件风险、基本事件的Birnbaum重要度和关键重要度。根据BDD算法编制C#程序,可得到接触网失效事故的发生概率和引发事故的关键因素。与割集方法相比,BDD方法不但能得到顶事件发生概率和基本事件重要度的精确值,而且计算速度快,过程简便。
The possibility and the severity of the consequences for the failure of OCS(Overhead Contact Line System) is considered and analyzed accurately, and the failure risk is assessed in time to provide a theoretical basis for the development of risk control measures. Firstly, the failure fault tree of OCS is established, and then the BDD structure is generated by the ITE rules. The top event risk, the Birnbaum importance and the critical importance of the basic events are calculated by recursively accessing the nodes of the BDD structure from top to bottom. According to the BDD algorithm, the C# program is finished, thus the occurrence probability of failure accident for OCS and the key factors causing the accident can be obtained. Compared with the cut set method, the BDD method can not only get the exact values of the occurrence probability of top event and the importance of basic events, but also have the advantages of fast calculation speed and simple procedure.
作者
赵峰
陈鲜
王英
ZHAO Feng;CHEN Xian;WANG Yin(School of Automation and Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;School of Automation and Electrical Engineering,Key Laboratory of Opto Electronic Technology and Intelligent Control of Ministry of Education,Lanzhou 730070,China)
出处
《控制工程》
CSCD
北大核心
2020年第1期15-21,共7页
Control Engineering of China
基金
中国铁路总公司科技研发项目（2017J012-A）
国家自然科学基金项目（51767013）
甘肃省教育厅自然基金项目（2017A-020）
光电技术与智能控制教育部重点实验室开放课题(KFKT2016-6)
