【摘要】 针对目前有载分接开关可靠性分析方法中存在的底事件数量众多、组件多态性等问题,采用多态多值决策图(MMDD)方法对其进行可靠性评估.该方法首先基于有载分接开关故障模式的归纳和分类,建立可靠性评估模型;再采用MMDD方法对系统可靠性进行定量分析;最后基于概率重要度,评估分接开关各个故障状态下的可靠性.实例分析结果表明,MMDD对故障分析具有发现、演绎、计算和解释的优点,并可得出各个故障因素与系统可靠性关系.更多还原

【Abstract】 Aiming at the problems of large number of bottom events and component polymorphism in the current reliability analysis method of the on-load tap-changer,the reliability was evaluated by using the multistate multi-valued decision diagram(MMDD).First,the reliability evaluation model was built based on the induction and classification of the fault modes of the on-load tap-changer.Second,the system reliability was quantitatively analyzed by using the MMDD.Finally,the reliability of each fault condition of the tap-changer was evaluated under the probability importance of each component.Example analysis results showed that the MMDD had the advantages of investigation,deduction,calculation and explanation of the system faults,and the relationship between fault term and system reliability could be obtained.更多还原