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This paper shows the design and the stability analysis of a Variable Structure Adaptive Pole Placement Controller (VS-APPC) for first order plants, both for regulation and tracking. The VS-APPC was proposed in previous papers and it provides a fast and non-oscillatory transient. Besides, it suggests robustness to parameter uncertainties and disturbances, by using switching adaptive laws for the plant...
This paper extends the results and features of the recently proposed Indirect Variable Structure Model Reference Adaptive Controller (IVS-MRAC) for non-minimum-phase plants and systems with arbitrary relative degree, through a suitable connection with a parallel feedforward (shunt) compensator, which turns the augmented system (plant + shunt) hyper minimum-phase. Simulations suggest that overall system...
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