基于冗余惯性组件故障诊断方法的比较研究  

Comparative Research of Fault Detection Methods Based on Redundant Inertial Measurement Unit

作　　者：贾鹏[1] 张洪钺[1] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100083

出　　处：《系统仿真学报》2006年第z2期274-278,共5页Journal of System Simulation

基　　金：国家自然科学基金(60234010)

摘　　要：介绍了几种常用的故障诊断方法:广义似然比法(GLT)、均值检验法,以及局部估计方法。以六陀螺冗余惯性组件为平台,验证了这几种方法在检测小故障时实际应用的不同效果,分析了影响各自检测能力及故障时延的原因及在工程应用中的优缺点,并对小故障检测能力、故障检测时延和实时计算量这几项指标进行了比较研究。Several fault detection and isolation (FDI) methods were proposed: generalized likelihood test (GLT), mean value test method and local approach. Based on the six-gyroscope redundant inertial measurement unit, different performances of these methods were evaluated, and the possible factors that affect their detection power were analyzed. Some comparisons on the ability to detect small fault, the fault detection delay and the computation load were also done.

关 键 词：故障诊断 GLT 均值检验法 局部方法 冗余惯性组件 

分 类 号：TP206+.3[自动化与计算机技术—检测技术与自动化装置]