Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
697089 | Automatica | 2012 | 6 Pages |
Abstract
We present a generalized sampled-data hold function that combines arbitrary zz-domain zero-placement ability with zero-order hold behavior under constant input, thus exhibiting minimal intersample ripple by design. Our hold can be regarded as a generalization of the fractional-order hold, with a polynomial instead of a simple linear pattern, and therefore with as many tuning parameters as desired. Moreover, the polynomial approach turns out to provide a simple mechanism of control energy minimization. Among other benefits, all these features help to achieve qualitatively better perfect model referencing, because problematic sampling zz-zeros or the intersample issues of the conventional generalized holds need no longer be endured.
Related Topics
Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
Unai Ugalde, Rafael Bárcena, Koldo Basterretxea,