Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
698100 | Automatica | 2009 | 8 Pages |
Abstract
We consider a switched-capacitor DC/DC power converter with variable switching instants. The determination of optimal switching instants giving low output ripple and strong load regulation is posed as a non-smooth dynamic optimization problem. By introducing a set of auxiliary differential equations and applying a time-scaling transformation, we formulate an equivalent optimization problem with semi-infinite constraints. Existing algorithms can be applied to solve this smooth semi-infinite optimization problem. The existence of an optimal solution is also established. For illustration, the optimal switching instants for a practical switched-capacitor DC/DC power converter are determined using this approach.
Related Topics
Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
R.C. Loxton, K.L. Teo, V. Rehbock, W.K. Ling,