A Digital Internal Model Current Controller for Salient Machines

The performance of anisotropic electrical machines is strongly dependent on the current loop characteristics. problems for achieving robustness and fast response, without overshoot oscillations, are mainly related to different values behavior direct quadrature inductances (L d , L xmlns:xlink="http://www.w3.org/1999/xlink">q ), as well high output frequencies. In this article, a novel controller structure based internal model control method presented, taking into account magnetic anisotropy ? ). salient derived directly in discrete domain used obtain model-based controller. derivation does not rely transport-delay approximations, which enables improved decoupling axes dynamics closed-loop very presented enhanced response higher bandwidth frequencies than state-of-the-art methods. experimental verification performed three-phase synchronous machine, using standard industrial inverter.