In this paper, second-order systems in the presence of both uncertainties and disturbances are considered. It is revealed that super-twisting controllers based on high-order sliding mode observers cannot be implemented when uncertainties are taken into account. An output feedback control law adopting the twisting algorithm is designed such that a Lipschitz continuous as well as saturated control signal is introduced to the system. In order to illustrate the feasibility and effectiveness of the proposed approach, numerical simulations are employed.
|Title of host publication||14th International Workshop on Variable Structure Systems (VSS)|
|Publication status||Published - 2016|