摘要
由于过驱动系统具有故障特征之间严重耦合的特点,传统的故障诊断方法不能有效对其进行故障检测与隔离.针对这一问题,基于几何理论中的不变子空间理论,通过空间投影运算,提出一种新的故障检测与隔离方法,解决了过驱动系统故障检测与隔离问题.该方法不仅对单个故障可以实现检测与隔离,而且对并发故障同样具有很好的检测与隔离效果.仿真结果验证了该方法的有效性.
In overactuated system,the features of actuators are coupling seriously,so traditional fault diagnosis methods can not detect and isolate them effectively.In order to solve this problem,based on the invariant subspace theory of geometric theory,a new method is proposed by the projection operations to solve the fault detection and isolation in this system.This method is not only for a single fault detection and isolation,but also for the concurrent faults with very good effect.Simulation results demonstrate the effectiveness of the proposed method.
出处
《河南大学学报（自然科学版）》
CAS
北大核心
2010年第5期511-515,共5页
Journal of Henan University:Natural Science
基金
国家自然科学基金(60974062
60804026)
河南省重点科技攻关项目(092102210207)
关键词
故障检测
隔离
不变子空间
过驱动系统
并发故障
fault detection
isolation
invariant subspace
overactuated system
concurrent fault
