Uncertainty remodeling for robust control of linear time-invariant plants
Abstract
The paper proposes a measure of robust performance based on frequency domain experimental data that allows non-conservative modeling of uncertainty. Given the nominal model of the plant and closed-loop performance specifications the iterative control design and remodeling of model uncertainty based on that measure leads to a controller with improved robust performance. The structured dynamic uncertainty is allowed to act on the nominal model in a linear fractional transformation (LFT) form. The proposed method is a modification of the structured singular value with implicit constraints on model consistency. The usefulness of the method is demonstrated on a vehicle control simulation example.
Keywords:
structured dynamic uncertainty, uncerting modeling, robust controlHow to Cite
Rödönyi, G., Bokor, J. “Uncertainty remodeling for robust control of linear time-invariant plants”, Periodica Polytechnica Electrical Engineering, 53(1-2), pp. 55–62, 2009. https://doi.org/10.3311/pp.ee.2009-1-2.07
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