Paper Info
Title
Active fault tolerant scheme for variable speed drives under actuator and sensor faults
Abstract
In this paper, an active fault tolerant control (AFTC) architecture is suggested for nonlinear systems, where actuator and sensor faults are addressed. The nonlinear structure is specially suited to describe some electric motors, and the ideas here developed can be applied to design more reliable variable speed drives. The AFTC scheme departs from a nominal control law previously designed. The fault diagnosis and isolation (FDI) structure is carried out in two stages. First, a fault condition is detected, and next a fault isolation and identification is performed. Hence, according to the FDI structure, the control algorithm can follow four scenarios: (i) operate in open-loop, (ii) replace missing/erroneous sensors by virtual ones, (iii) adjust the references for a faulty actuator, and (iv) reconfigure the control law. The application to a DC motor in parallel configuration is illustrated, and the evaluation is carried experimentally in a 2 HP test-bed.
Year
DOI
Venue
2008
10.1109/CCA.2008.4629699
San Antonio, TX
Keywords
Field
DocType
DC motors,actuators,fault tolerance,nonlinear control systems,sensors,variable speed drives,DC motors,active fault tolerant control,actuators,electric motors,fault conditions,fault diagnosis and isolation structure,fault isolation,nominal control law,nonlinear systems,open-loop systems,parallel configuration,sensor faults,variable speed drives
Nonlinear system,Control theory,Computer science,Fault detection and isolation,Control engineering,DC motor,Fault tolerance,Control system,Open-loop controller,Electric motor,Actuator
Conference
ISSN
ISBN
Citations 
1085-1992
978-1-4244-2223-4
0
PageRank 
References 
Authors
0.34
6
4
Name
Order
Citations
PageRank
Diego Rivelino Espinoza-Trejo1133.95
Diego Rivelino Espinoza-Trejo2133.95
Daniel U. Campos-Delgado37317.67
Campos-Delgado, D.U.4135.55