牵引供电SCADA系统故障树分析研究

Study on Fault Tree Analysis of Traction Power SCADA System

应用灰门故障树分析方法对牵引供电SCADA系统的可靠性进行了研究。简要介绍了灰门故障树分析方法的基本理论和牵引供电SCADA系统的基本结构;建立了牵引供电SCADA系统的故障树;用概率灰数描述部件的故障概率,用灰门代替传统逻辑门来描述部件间的联系,用故障测度描述部件的故障程度。对所建立的故障树进行了定量的计算。结果表明,应用灰门故障树分析方法的计算结果是可行有效的。

A grey gate fault tree analysis for traction power SCADA system is proposed. The theory of grey gate fault tree is introduced as well as the structure of traction power SCADA system. The fault tree of the traction power SCADA system is established, where fault probabilities are described by probability gray numbers. The events＇ relationships are described by grey gates instead of conventional logic gates. An example of a traction power SCADA system shows that the results using gray gate fault tree analysis are feasible and effective.