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Bouc-Wen model is a popular analytical form to describe hysteretic system while the non-smooth absolute-value function terms in the model bring about challenges in control system design. Different from traditional piecewise approach, this paper presents a digital control design methodology based on a revised model with a universal smooth representation. In the proposed method, approximated scalar...
Traditionally, one typical way to deal with the sign function constrained non-smooth system is to divide the state space into two or more subspaces based on the direction of sign function. The resulting piecewise model is with complicated structure, leading to the difficulty in controller design as well as stability analysis. In this paper, an innovative concept of approximated scalar sign function...
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