Sensitivity-conditioning: Beyond Singular Perturbation for Control Design on Multiple Time Scales

Open access
Datum
2023-04Typ
- Journal Article
Abstract
A classical approach to design controllers for interconnected systems is to assume that the different subsystems operate at different time scales, then design simpler controllers within each time scale, and finally certify stability of the interconnected system via singular perturbation analysis. In this work, we propose an alternative approach that also allows to design the controllers of the individual subsystems separately. However, instead of requiring a sufficiently large time-scale separation, our approach consists of adding a feed-forward term to modify the dynamics of faster systems in order to anticipate the dynamics of slower ones. We present several examples in bilevel optimization and cascade control design, where our approach improves the performance of currently available methods. Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-b-000579529Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
IEEE Transactions on Automatic ControlBand
Seiten / Artikelnummer
Verlag
IEEEThema
Bilevel optimization; cascade control; interconnected systems; nonlinear control design; singular perturbation; time-scale separationOrganisationseinheit
09478 - Dörfler, Florian / Dörfler, Florian