An H∞ approach to fast rate fault detection for multirate sampled-data systems

被引:26
|
作者
Izadi, Iman [1 ]
Zhao, Qing [1 ]
Chen, Tongwen [1 ]
机构
[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
fault detection; residual generation; multirate systems; sampled-data systems; optimal H-infinity design;
D O I
10.1016/j.jprocont.2005.10.004
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper the problem of fault detection in multirate sampled-data systems is studied. The lifting technique and direct design approach are used to convert the time-varying multirate design problem into an equivalent time-invariant single-rate discrete-time problem. A performance index is optimized to obtain a set of optimal and causal residual generators. The key new feature of such a residual generator is that it operates at a fast rate for prompt fault detection. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:651 / 658
页数:8
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