Research and Application of Fault Diagnosis Based on BDD

doi:10.11985/2017.02.007

Abstract

Abstract:

The process of applying fault tree analysis easily lead to "dimension explosion" and other issues. The BDD-based algorithm of fault tree analysis is studied in the paper, and the method of transformation from fault tree to BDD is analyzed. The top event probability and structural importance of the end of the event based on BDD algorithm is solved. Finally using this algorithm analyze and apply to example.

Key words: Fault tree analysis, BDD algorithm, fault diagnosis, structure importance

CLC Number:

TP274

Shuying Li,Peizhen Wang,Chun Yang. Research and Application of Fault Diagnosis Based on BDD[J]. Journal of Electrical Engineering, 2017, 12(2): 43-47.

Figures/Tables 9

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References 6

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顶事件		中间事件				底事件
编号	事件	编号	事件	编号	事件	编号	事件
T	DC-DC模块过温故障	G₁	风机系统故障	G₄	风机信号故障	E₁	控制信号线路故障
				G₄	风机信号故障	E₂	反馈信号线路故障
				G₅	风机故障	E₃	辅助供电系统故障导致谐波变大
				G₅	风机故障	E₄	风机滤波装置故障
				G₆	风机线路故障	E₅	风机内部线路故障
				G₆	风机线路故障	E₆	风机外部接线故障
		G₂	采样系统故障			E₇	调理板故障
		G₂	采样系统故障			E₈	DSP采样故障
		G₃	温度传感器故障			E₉	温度传感器故障
		G₄	辅助系统故障引起锁机			E₁₀	辅助故障引起系统锁机,风机无法起动

底事件	E₃	E₁	E₂	E₄	E₅	E₆	E₇	E₈	E₉	E₁₀
Φ(0_i, X) = 0	0	0	0	1	0	0	0	0	0	0
Φ0_i, X) = 1	1	0	0	1	0	0	0	0	0	0

情况	底事件	E₁	E₃	E₄
1	Φ(0_i, X) = 0	0	0	1
	Φ(0_i, X) = 1	1	0	1
2	Φ(0_i, X) = 0	0	0	0
	Φ(0_i, X) = 1	1	0	0
3	Φ(0_i, X) = 0	0	1	0
	Φ(0_i, X) = 1	1	1	0

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