|Title:||Fault-tolerant observer design with a tolerance measure for systems with sensor failures|
|Authors :||Zhang, Cong|
Jaimoukha, Imad M.
Segundo Sevilla, Felix Rafael
|Proceedings:||2016 American Control Conference (ACC)|
|Conference details:||2016 American Control Conference (ACC), Boston, USA, 6-8 July 2016|
|Publisher / Ed. Institution :||IEEE|
|License (according to publishing contract) :||Licence according to publishing contract|
|Type of review:||Peer review (Publication)|
|Subject (DDC) :||003: Systems|
|Abstract:||A fault-tolerant switching observer design methodology is proposed. The aim is to maintain a desired level of closed-loop performance under a range of sensor fault scenarios while the fault-free nominal performance is optimized. The range of considered fault scenarios is determined by a minimum number p of assumed working sensors. Thus the smaller p is, the more fault tolerant is the observer. This is then used to define a fault tolerance measure for observer design. Due to the combinatorial nature of the problem, a semidefinite relaxation procedure is proposed to deal with the large number of fault scenarios for systems that have many vulnerable sensors. The procedure results in a significant reduction in the number of constraints needed to solve the problem. Two numerical examples are presented to illustrate the effectiveness of the fault-tolerant observer design.|
|Departement:||School of Engineering|
|Organisational Unit:||Institute of Energy Systems and Fluid Engineering (IEFE)|
|Publication type:||Conference Paper|
|Appears in Collections:||Publikationen School of Engineering|
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