Abstract
Extremum seeking is realized via a state regulator that drives the state along a convergent set point sequence generated by a numerical optimization algorithm. In this chapter, we propose an asymptotic state regulator design for state feedback linearizable systems, where we trade off finite time state regulation to obtain flexibility in designing a robust extremum seeking controller. Existing techniques such as nonlinear damping and nonlinear adaptive control are then used to deal with input disturbance and unmodeled plant dynamics. Simulation examples illustrate the effectiveness of the basic and robust extremum seeking schemes, and design guidelines are provided for engineering applications. We also show that the NOESC scheme allows a large design flexibility for general nonlinear systems and performance functions, where the key is having the ability to design a robust regulator.
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Notes
- 1.
Restrictions on D will result in the need for constrained optimization. The stability of constrained ESC is still an open topic of research.
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© 2012 Springer-Verlag London Limited
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Zhang, C., Ordóñez, R. (2012). Asymptotic State Regulator Design. In: Extremum-Seeking Control and Applications. Advances in Industrial Control. Springer, London. https://doi.org/10.1007/978-1-4471-2224-1_5
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DOI: https://doi.org/10.1007/978-1-4471-2224-1_5
Publisher Name: Springer, London
Print ISBN: 978-1-4471-2223-4
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