DOI: 10.1109/iccas.2014.6987743
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Youngjun Joo, Gyunghoon Park

Abstract: As a robust control scheme, a disturbance observer (DOB) has been widely employed in industrial applications to reject the effect of disturbances and plant uncertainties. The disturbance rejection performance of DOB is mainly determined by the design of two Q-filters, which are the core components of DOB structure. Despite the different roles of each Q-filter, they have been typically designed to have the same structure. In this paper, we generalize Q-fiIters' structures based on the observation about each Q-…

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