کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
698393 | 890406 | 2007 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Parameter convergence in adaptive extremum-seeking control Parameter convergence in adaptive extremum-seeking control](/preview/png/698393.png)
This paper addresses the problem of parameter convergence in adaptive extremum-seeking control design. An alternate version of the popular persistence of excitation condition is proposed for a class of nonlinear systems with parametric uncertainties. The condition is translated to an asymptotic sufficient richness condition on the reference set-point. Since the desired optimal set-point is not known a priori in this type of problem, the proposed method includes a technique for generating perturbation signal that satisfies this condition in closed-loop. This demonstrates its superiority in terms of parameter convergence. The method guarantees parameter convergence with minimal but sufficient level of perturbation. The effectiveness of the proposed method is illustrated with a simulation example.
Journal: Automatica - Volume 43, Issue 1, January 2007, Pages 105–110