Novel two degree of freedom model matching controller for set-point tracking in MIMO systems

A control scheme is proposed in this paper that introduces a two degree of freedom (2-DOF) controller for tracking the desired trajectory of a multi-input multi-output (MIMO) system, by implementing an original method that infuses three techniques, such as the model order reduction, optimization and...

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Bibliographic Details
Published in:Computers & electrical engineering 2017-07, Vol.61, p.1-14
Main Authors: Beevi, P. Febina, Kumar, T.K. Sunil, Jacob, Jeevamma, Beevi, P. Delina
Format: Article
Language:English
Subjects:
2-DOF controller
Approximate model matching
Computer simulation
Control stability
Controllers
Degrees of freedom
Electrical engineering
Loop transfer functions
Matrix
MIMO (control systems)
MIMO system
Model matching
Model order reduction
Model reduction
Optimization
Set-point tracking
Simulation
Tracking
Transfer functions
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Summary:A control scheme is proposed in this paper that introduces a two degree of freedom (2-DOF) controller for tracking the desired trajectory of a multi-input multi-output (MIMO) system, by implementing an original method that infuses three techniques, such as the model order reduction, optimization and the approximate model matching techniques. The desired specifications for achieving set-point tracking may be embodied in the form of a transfer function matrix. The proposed method not only ensures the stability of the closed loop system with designed 2-DOF controller, but also satisfies the required performance criteria. This method is cost-effective, computationally simple, easy to implement and can be used in the design without any restrictions in the structure/order of the model's closed loop transfer function or 2-DOF controller. Simulation results demonstrate the effectiveness of the developed method.
ISSN:0045-7906
1879-0755
DOI:10.1016/j.compeleceng.2017.05.021