故障验证体系的可诊性理论

DIAGNOSABILITY THEORIES IN VERIFICATION TECHNIQUES FOR ANALOG FAULT DIAGNOSIS WITH TORALENCE

本文首先通过Voronoi超球面描述了故障验证方法体系中全部特征子阵的最近邻关系,再通过摄动理论分析了测量电压变化阵k维最大方向能量子空间的酉基阵对故障特征子阵的偏差干扰角。然后在此基础上讨论了故障验证方法体系可诊性问题,导出了该方法体系在诊断模拟电路故障时的可诊充要条件,并据可诊性质对诊断问题进行了分类界定。

This paper descibes all nearest-neighbors relations of feature submatrices in fault verification techniques with a Voronoi hypersphere, analyses deviation disturbance angles between the feature submatrices and an unitary basis submatrix of the k-dimension maximal orientation-energy subspace of a measured voltgage-change matrix through disturbance theories. Based on the above, the paper proposes novel diagnosability theories for the system of fault verification techniques, derives a necessary and sufficient diagnosability condition in verification techniques for analog fault diagnosis under toralence disturbance. In addition, the paper classifies diagnosis problems with the revealed diagnosability.