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|Title:||Variant-factor technique for tracking control of a class of nonlinear systems with input saturation||Authors:||Peng, K.
|Keywords:||Composite nonlinear feedback
Nonlinear systems and control
|Issue Date:||2012||Citation:||Peng, K.,Chen, B.M. (2012). Variant-factor technique for tracking control of a class of nonlinear systems with input saturation. Proceedings of the IASTED International Conference on Engineering and Applied Science, EAS 2012 : 129-135. ScholarBank@NUS Repository. https://doi.org/10.2316/P.2012.785-098||Abstract:||A variant-factor (VF) technique is developed for the control design of a class of single-input and single-output affine nonlinear systems with input saturation. The main ideas of VF are to convert an affine nonlinear system into a linear time-invariant system similar to the dynamic inversion and then to use the ideas of the composite nonlinear feedback (CNF) technique to design a control law for the converted linear system with the input saturation. A variant factor is introduced to guarantee the resulting closed-loop system asymptotically stable in presence of the input saturation. The VF control laws retain the similar properties of the CNF control laws. With the VF control law, the system output can asymptotically track the step reference and the resulting closed-loop system can achieve better tracking performance than that with the control law designed with the dynamic inversion. An illustrative example is given to show the VF control design and simulation results are presented to demonstrate the tracking performance of the resulting closed-loop system.||Source Title:||Proceedings of the IASTED International Conference on Engineering and Applied Science, EAS 2012||URI:||http://scholarbank.nus.edu.sg/handle/10635/72150||ISBN:||9780889869523||DOI:||10.2316/P.2012.785-098|
|Appears in Collections:||Staff Publications|
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