On Discrete Variable Structure Control with Switching SectorChoon
نویسندگان
چکیده
In this paper, potential instability and loss of performance due to the use of attractive and non-invariant switching sector in a number of discrete variable structure controllers (DVSC) for linear systems with parametric uncertainties are discussed. Analytical explanation as well as counter examples are given to support the arguments. A state feedback DVSC based on the concept of switching sector and capable of avoiding the potential pitfalls is proposed. It is shown that global uniform asymptotic stability can be achieved despite the non-invariance of switching sector. Conservativeness of the proposed controller is discussed and a numerical example is presented.
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تاریخ انتشار 1999