OH Okko Bosgra

TL;DR: The aim of this paper is to develop a combined system identification and robust control design procedure for high performance motion control and apply it to a wafer stage and confirm that the proposed procedure significantly extends existing results and enables next-generation motion control design.

TL;DR: In this article, a linear parametrization of the feed-forward controller in a two-degree-of-freedom control architecture is chosen, which results in a feedforward controller that is applicable to a class of motion profiles as well as in a convex optimization problem, with the objective function being a quadratic function of the tracking error.

TL;DR: Analysis reveals how different ILC objectives can be reached by designing separate parts of the ILC controller, and uses these results to systematically design ILC controllers for the representation under study.

TL;DR: A finite time interval model for uncertain systems is introduced and subsequently used in an RMC analysis based on @m analysis, which can handle additive and multiplicative uncertainty models in the RMC problem formulation, and analyze RMC of linear time invariant MIMO systems controlled by any linear trial invariant ILC controller.

TL;DR: In this paper, an extension to higher-order describing functions is realized by introducing the concept of the harmonics generator, which relates the magnitude and phase of the higher harmonics of the periodic response of the system to the magnitude of a sinusoidal excitation.