کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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714649 | 892189 | 2015 | 6 صفحه PDF | دانلود رایگان |
Hybrid systems exhibit continuous and discrete dynamics and are encountered in many complex and safety-critical systems. Due to their complex nature, the fault diagnosis task becomes very challenging. In this paper, we present a method to perform fault detection with a nonlinear hybrid system using set-membership parameter estimation in a bounded-error framework. Our method relies on a consistency test between the feasible parameter set as computed in normal fault-free operation or given as nominal, and the feasible parameter set as estimated during on-line operation over a given time horizon. Hence, a fault is detected if the feasible set for the parameter vector estimated online is inconsistent with nominal values. An illustrative example is presented.
Journal: IFAC-PapersOnLine - Volume 48, Issue 21, 2015, Pages 296-301