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Improved Feed-Forward Command Governor Strategies for Constrained Discrete-Time Linear Systems

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3 Author(s)
Casavola, A. ; Dept. of Inf., Modeling, Electron. & Syst. Eng. (DIMES), Univ. of Calabria, Calabria, Italy ; Garone, E. ; Tedesco, F.

This technical note presents an improved version of the Feed-Forward Command Governor (FF-CG) strategy recently proposed in for the supervision of input/state constrained discrete-time linear systems subject to bounded disturbances, whose main feature is not to require any explicit on-line measure (or estimation) of the state for its implementation. Although effective also in the case of bounded disturbances, the performance of earlier FF-CG schemes was mainly limited by the fact that such strategies were required to maintain constant their actions for a prescribed number of sampling steps. Here such a restriction is removed and the proposed FF-CG solution is allowed to update its action at each sampling step. Numerical simulations on a physical plant have been undertaken and comparisons with other strategies have been reported in order to show the effectiveness of the proposed approach.

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Automatic Control, IEEE Transactions on  (Volume:59 ,  Issue: 1 )