Robust vibration control of uncertain systems using variable parameter feedback and model-based fuzzy strategies

Abstract In this paper, two control strategies are investigated for robust vibration control of parameter uncertain systems. Firstly, for the variable parameter feedback control, the region of the adjustable parameter r is determined rigorously and accurately so as to improve the robustness of the controller. Then, for the model-based fuzzy control (MBFC), the robustness can be achieved by updating the coefficient matrix Θ ( α ( k )) on-line. Compared with the conventional design, the derived formulae for the MBFC are for systems with multi-output rather than single output. Finally, some experiments on vibration control of a thin-plate system were carried out.

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