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一种异类系统中多种故障检测与隔离的空间几何方法研究

DOI: 10.16383/j.aas.2015.c140801, PP. 1113-1122

Keywords: 故障检测与隔离,过驱动系统,量测干扰,空间几何方法,不可观测子空间

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Abstract:

?针对量测干扰下一种异类过驱动系统中残差与干扰存在耦合关系的问题,提一种运用空间几何方法实现残差对干扰解耦的新算法.通过设计残差生成器并实现残差对系统输入和量测干扰的解耦,由残差值反馈故障检测情况,根据不可观测子空间中的空间分割建立结构化残差集,使得残差集与故障集满足完全对应关系,完成故障的隔离.最后通过提出对比仿真算例验证了我们所提算法的可行性和有效性.

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