This paper reports a series of real-time experiments for stabilization of a laser beam (LBS) employing a set of continuous-time sliding mode controllers. An asymptotic sliding mode controller, as a first strategy, is designed to maintain the laser light in a fixed position; the results of such experiment is detailed in a table where the mean square error shows performance of the algorithm. An integral term added in the control law design demonstrates an improvement in its performance. The well-known super-twisting algorithm, the second controller, is then designed and implemented in the laser beam stabilization experiment. In both cases, a Lyapunov analysis is developed to ensure convergence of the given algorithms, by a suitable selection of the parameters of the algorithms, such a systematic approach to tune the controllers for the laser stabilization ensures the reproducibility of the experiment once parameters in control laws are selected accordingly.
The International Journal of Advanced Manufacturing Technology – Springer Journals
Published: Jan 18, 2017
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