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Norm-optimal control of time-varying discrete repetitive processes with iteration-varying reference inputs

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2 Author(s)
Omer, E.A. ; Div. of Eng., Colorado Sch. of Mines, Golden, CO, USA ; Moore, K.L.

This paper extends the norm-optimal control design methodology of iterative learning control (ILC) to the case of linear time-varying discrete repetitive processes (LTV-DRP) driven by known iteration-varying reference input signals. Our approach exploits the idea of the internal model principle for robust servomechanism design and uses a state-space model of LTV-DRPs introduced in our earlier work. A general state-feedback solution to the problem is derived that contains as special cases the solutions for time-invariant DRPs and iteration-invariant reference signals as well as the equivalent solutions for the ILC case. A numerical example illustrates the results.

Published in:

Multidimensional (nD) Systems (nDs), 2011 7th International Workshop on

Date of Conference:

5-7 Sept. 2011