TY - JOUR
T1 - Output tracking of systems subjected to perturbations and a class of actuator faults based on HOSM observation and identification
AU - Ferreira De Loza, Alejandra
AU - Cieslak, Jérôme
AU - Henry, David
AU - Zolghadri, Ali
AU - Fridman, Leonid M.
N1 - Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - Abstract This paper deals with the output tracking problem of a MIMO system subjected to a class of actuator faults and unmatched perturbations. The proposed methodology is based on high order sliding mode observation and identification techniques. A dynamic sliding surface is proposed using a backstepping-like design strategy in order to counteract the effects of the unmatched perturbations. Whereas a continuous sliding mode control is designed to steer the states toward the sliding surface. The identified value of the fault is injected to alleviate the control gain while accomplishing fault accommodation. As a consequence, the chattering is attenuated. A simulation example for a 3-DOF helicopter highlights the efficiency of the present method.
AB - Abstract This paper deals with the output tracking problem of a MIMO system subjected to a class of actuator faults and unmatched perturbations. The proposed methodology is based on high order sliding mode observation and identification techniques. A dynamic sliding surface is proposed using a backstepping-like design strategy in order to counteract the effects of the unmatched perturbations. Whereas a continuous sliding mode control is designed to steer the states toward the sliding surface. The identified value of the fault is injected to alleviate the control gain while accomplishing fault accommodation. As a consequence, the chattering is attenuated. A simulation example for a 3-DOF helicopter highlights the efficiency of the present method.
KW - Disturbance rejection
KW - Fault-tolerant systems
KW - Sliding-mode control
UR - http://www.scopus.com/inward/record.url?scp=84937886839&partnerID=8YFLogxK
U2 - 10.1016/j.automatica.2015.06.020
DO - 10.1016/j.automatica.2015.06.020
M3 - Artículo
SN - 0005-1098
VL - 59
SP - 200
EP - 205
JO - Automatica
JF - Automatica
M1 - 6438
ER -