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Latin American applied research

versión On-line ISSN 1851-8796


WANG, J. Predictive Generalized Minimum Variance Control of Nonlinear Multivariable Systems with Non-analytical Modules. Lat. Am. appl. res. [online]. 2015, vol.45, n.1, pp. 11-20. ISSN 1851-8796.

For most of the control methods, it is implicitly assumed that a mathematically analytical model can be obtained before control design. This is not always feasible for many engineering systems whose analytical models are either very difficult or expensive to obtain. To handle this situation, linearization or identification techniques are usually deployed to obtain an analytical model. This paper, however, proposes a novel method to tackle directly those systems with non-analytical modules. The method does not rely on the inversion of the nonlinear system and is henceforth computationally economic. Important results are obtained on control design for nonlinear multivariable systems with non-analytical modules. Input saturation, robustness and practical implementation issues are also discussed. The proposed method is finally validated through its application to a robotic manipulator

Palabras llave : Onlinear Systems; Non Analytical Modules; Nonlinear Predictive Control; Input Saturation.

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