基于集对分析联系数故障树的BA系统可靠性分析

Reliability analysis of BA system based on connection number of set pair analysis and FTA

为了有效管理和监测建筑设备自动化系统(BAS),提高系统可靠性,基于集对分析联系数和故障树理论研究了BA系统的可靠性分析方法。详细分析可能引起BA系统故障的各种因素,建立系统的故障树模型,并确定了系统故障原因的各种可能组合方式;引入中间状态概率的概念结合集对分析联系数理论建立了BA系统的可靠性评定模型;通过BA冷源系统的仿真实例验证了模型的可靠性和有效性。实验表明,该模型便于发现系统的薄弱环节,从而有效提高了系统的可靠性。

To manage and monitor （BAS） equipment effectively and improve the system reliability, researched a reliability method of BAS based on the theory of connection number of set pair analysis and FTA. Firstly, every kind of factors, which could make the building equipment fault, was analysis deeply. Then, constructed a fault tree and confirmed the reasons of system fault in every possible combination way by the fault tree model. Secondly, established a BAS reliability evaluation model combined with the conception of intermediate probability and the theory of connection number of set pair analysis. Finally, presented an example of BA cold source system to verify the reliability and effectiveness of this model . The result shows the model is easy to find the weakness of system, so as to improve the system reliability effectively.