Experimental robustness study of a second-order sliding mode controller

The design of a Second-Order Sliding Mode Controller is discussed and guidelines are given for tuning. The robustness to unmodeled dynamics and parameter-errors is investigated and tested in an experimental case study. The experimental results, as far as robustness to unmodeled dynamics is concerned, are not better than for a traditional PD-controller. When robustness to parameter-errors is concerned the Second-Order Sliding Mode Controller performs slightly better