Feedback control of multiinput nonlinear systems by extendedlinearization |
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Authors: | Baumann WT |
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Affiliation: | Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA; |
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Abstract: | Control of a nonlinear system is addressed by considering its family of linearizations. Given that a family of linear state-feedback controllers has been designed to meet some (linear) control objective, it is shown how these controllers can be pieced together into an overall, nonlinear, state-feedback controller. The resulting closed-loop system has the property that its linearizations are equal to the desired linearly controlled systems. A similar approach can be used to design nonlinear state estimators. The approach is illustrated by applying it to the control of a planar two-link manipulator |
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