Parameter Varying Mode Decoupling for LPV systems

Baár, Tamás and Bauer, Péter and Luspay, Tamás (2020) Parameter Varying Mode Decoupling for LPV systems. In: IFAC World Congress, 2020.07.11-2020.07.17, Virtual (Berlin, Germany).

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Abstract

The paper presents the design of parameter varying input and output transformations for Linear Parameter Varying systems, which make possible the control of a selected subsystem. In order to achieve the desired decoupling the inputs and outputs of the plant are blended together, and so the MIMO control problem is reduced to a SISO one. The new input of the blended system will only interact with the selected subsystem, while the response of the undesired dynamical part is suppressed in the single output. Decoupling is achieved over the whole parameter range, and no further dynamics are introduced. Linear Matrix Inequality methods form the basis of the proposed approach, where the minimum sensitivity (denoted by the H − index) is maximized for the subsystem to be controlled, while the H∞ norm of the subsystem to be decoupled is minimized. The method is evaluated on a flexible wing aircraft model.

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