Abstract

RAMOS FUENTES, Germán Andrés; OLM MIRAS, Josep  and  COSTA CASTELLO, Ramón. A survey of repetitive control in varying frequency conditions. Ing. Investig. [online]. 2011, vol.31, n.2, pp.29-37. ISSN 0120-5609.

Digital repetitive control is a strategy that allows tracking/rejecting periodic signals. Repetitive controllers are designed assuming that the exogenous signal period is constant and known, its main drawback being the dramatic loss of performance when signal frequency varies. This paper reviews the most relevant proposals advanced for overcoming this problem.

Keywords : repetitive control; varying frequency; high order repetitive control; varying sampling period.

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