Abstract
This paper investigates adaptive state feedback stabilization for a class of feedforward nonlinear systems with zero-dynamics, unknown linear growth rate and control coefficient. For design convenience, the state transformation is first introduced and the new system is obtained. Then, the estimation law is constructed for the unknown control coefficient, and the state feedback controller is proposed with a gain updated on-line. By appropriate choice of the estimation law for the control coefficient and the dynamic gain, the states of the closed-loop system are globally bounded, and the state of the original system converges to zero. Finally, a simulation example is given to illustrate the correctness of the theoretical results.
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References
Mazenc F and Bowong S, Tracking trajectories of feedforward systems, IEEE Trans. Automatic Control, 2002, 47(8): 1338–1342.
Ye X D and Unbehauen H, Global adaptive stabilization for a class of feedforward nonlinear systems, IEEE Trans. Automatic Control, 2004, 49(5): 786–792.
Krstic M, Feedback linearizability and explicit integrator forwarding controllers for classes of feedforward systems, IEEE Trans. Automatic Control, 2004, 49(10): 1668–1682.
Mazenc F, Mondie S, and Francisco R, Global asymptotic stabilization of feedforward systems with delay in the input, IEEE Trans. Automatic Control, 2004, 49(5): 844–850.
Teel A R, Using saturation to stabilize a class of single-input partially linear composite systems, Proceedings of the 2nd IFAC Symposium on Nonlinear Control Systems, Bordeaux, France, 1992, 379–384.
Krishnamurthy P and Khorrami F, Adaptive output-feedback control of a general class of uncertain feedforward systems via a dynamic scaling approach, IET Control Theory A, 2011, 5(5): 681–692.
Ye X D, Universal stabilization of feedforward nonlinear systems, Automatica, 2003, 39(1): 141–147.
Krishnamurthy P and Khorrami F, Adaptive output-feedback control of feedforward systems with uncertain parameters coupled with all states, Proceedings of the 2007 American Control Conference, New York, USA, 2007, 480–485.
Choi H L and Lim J T, Stabilization of nonlinear systems with unknown growth rate by adaptive output feedback, Int. J. Syst. Sci., 2010, 41(6): 673–678.
Mazenc F and Praly L, Adding integrations, saturated controls, and stabilization for feedforward systems, IEEE Trans. Automatic Control, 1996, 41(11): 1559–1578.
Sepulchre R, Jankovic M, and Kokotovic P V, Integrator forwarding: A new recursive nonlinear robust design, Automatica, 1997, 33(5): 979–984.
Lin W and Li X, Synthesis of upper-triangular nonlinear systems with marginally unstable free dynamics using state-dependent saturation, Int. J. Control, 1999, 72(12): 1078–1086.
Arcak M, Teel A, and Kokotovic P, Robust nonlinear control of feedforward systems with unmodeled dynamics, Automatica, 2001, 37(2): 265–272.
Marconi L, Isidori A, and Serrani A, Input disturbance suppression for a class of feedforward uncertain nonlinear systems, Syst. Control Lett., 2002, 45(3): 227–236.
Polendo J and Schrader C B, Output feedback stabilization of nonlinear feedforward systems using arbitrarily bounded control, Proceedings of the 2005 American Control Conference, Portland, OR, USA, 2005, 4727–4729.
Chen T S and Huang J, Disturbance attenuation of feedforward systems with dynamic uncertainty, IEEE Trans. Automatic Control, 2008, 53(7): 1711–1717.
Chen T S and Huang J, Global robust output regulation by state feedback for strict feedforward systems, IEEE Trans. Automatic Control, 2009, 54(9): 2157–2163.
Ding S H, Qian C J, and Li S H, Global stabilization of a class of feedforward systems with lower-order nonlinearities, IEEE Trans. Automatic Control, 2010, 55(3): 691–696.
Ye X D, Adaptive stabilization of time-delay feedforward nonlinear systems, Automatica, 2011, 47(5): 950–955.
Zhang X F, Baron L, Liu Q R, and Boukas E K, Design of stabilizing controllers with a dynamic gain for feedforward nonlinear time-delay systems, IEEE Trans. Automatic Control, 2011, 56(3): 692–697.
Shang F, Liu Y G, and Zhang X F, Adaptive stabilizing controller design for a class of uncertain feedforward nonlinear systems, Proceedings of the 31st Chinese Control Conference, Hefei, China, 2012, 519–523.
Praly L and Jiang Z P, Linear output feedback with dynamic high gain for nonlinear systems, Syst. Control Lett., 2004, 53(2): 107–116.
Krishnamurthy P and Khorrami F, On uniform solvability of parameter-dependent Lyapunov inequalities and applications to various problems, SIAM J. Control Optim., 2006, 45(4): 1147–1164.
Krishnamurthy P and Khorrami F, Feedforward systems with ISS appended dynamics: Adaptive output-feedback stabilization and disturbance attenuation, IEEE Trans. Automatic Control, 2008, 53(1): 405–412.
Khalil H K, Nonlinear Systems, 3rd Edition, Prentice Hall, New Jersey, 2002.
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This research was supported by the National Natural Science Foundations of China under Grant Nos. 61104069, 61325016, 61273084, 61374187 and 61473176, and Independent Innovation Foundation of Shandong University under Grant No. 2012JC014.
This paper was recommended for publication by Editor ZHANG Jifeng.
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Shang, F., Liu, Y. & Zhang, G. Adaptive stabilization for a class of feedforward systems with zero-dynamics. J Syst Sci Complex 28, 305–315 (2015). https://doi.org/10.1007/s11424-015-3059-7
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DOI: https://doi.org/10.1007/s11424-015-3059-7