TY - JOUR
T1 - High performance robust linear controller synthesis for an induction motor using a multi-objective hybrid control strategy
AU - Zheng, Kai
AU - Lee, Aik Hong
AU - Bentsman, Joseph
AU - Krein, Philip T
N1 - This work was supported by the National Science Foundation Awards CMS-0000458 and CMS-0324630 and by the Grainger Center for Electrical Machinery and Electromechanics of the University of Illinois at Urbana-Champaign. Our colleague Guoliang Zhang is acknowledged for making a few illuminating comments.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - A robust induction motor control should provide the desired performance in the face of both plant model and controller model uncertainty. In a recent work, Bottura and co-workers, using the field orientation principle, introduced a representation of a nonlinear time-varying induction motor model that admits robust induction motor controller synthesis in the linear H∞ framework. The present work considers the use of the approach of Bottura et al. for attaining robust performance of the main operating modes-tracking and disturbance rejection-of an induction motor control system under implementation constraints on the control signal magnitude. This approach requires two distinct mode-specific controllers with gains that cannot be bridged without considerable performance degradation. To address this problem, a multi-objective hybrid control design methodology is developed that employs the corresponding mode-specific controller in each mode, and organizes a rapid and smooth steady-state switching, or transfer, between these controllers to permit sequencing of the operating modes, as necessary. Simulation shows that the technique proposed yields controllers with performance minimally affected by an imprecise modeling of an induction motor, as well as a reduced cost controller implementation throughout the entire induction motor operating sequence.
AB - A robust induction motor control should provide the desired performance in the face of both plant model and controller model uncertainty. In a recent work, Bottura and co-workers, using the field orientation principle, introduced a representation of a nonlinear time-varying induction motor model that admits robust induction motor controller synthesis in the linear H∞ framework. The present work considers the use of the approach of Bottura et al. for attaining robust performance of the main operating modes-tracking and disturbance rejection-of an induction motor control system under implementation constraints on the control signal magnitude. This approach requires two distinct mode-specific controllers with gains that cannot be bridged without considerable performance degradation. To address this problem, a multi-objective hybrid control design methodology is developed that employs the corresponding mode-specific controller in each mode, and organizes a rapid and smooth steady-state switching, or transfer, between these controllers to permit sequencing of the operating modes, as necessary. Simulation shows that the technique proposed yields controllers with performance minimally affected by an imprecise modeling of an induction motor, as well as a reduced cost controller implementation throughout the entire induction motor operating sequence.
KW - Bumpless transfer
KW - Hybrid control
KW - Induction motor speed control
KW - Robust control
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U2 - 10.1016/j.na.2005.10.051
DO - 10.1016/j.na.2005.10.051
M3 - Article
AN - SCOPUS:33749055475
SN - 0362-546X
VL - 65
SP - 2061
EP - 2081
JO - Nonlinear Analysis, Theory, Methods and Applications
JF - Nonlinear Analysis, Theory, Methods and Applications
IS - 11
ER -