CReSTIC, EA3804, University of Reims, Moulin de la House BP1039, 51687 Reims Cedex 2, France.
ISA Trans. 2010 Oct;49(4):447-61. doi: 10.1016/j.isatra.2010.06.003.
In this paper, new robust H(infinity) controller design methodologies for Takagi-Sugeno (T-S) descriptors is considered. Based on Linear Matrix Inequalities, two different approaches are proposed. The first one involves a "classical closed-loop dynamics" formulation and the second one a "redundancy closed-loop dynamics" approach. The provided conditions are obtained through a fuzzy Lyapunov function candidate and a non-PDC control law. Both the classical and redundancy approaches are compared. It is shown that the latter leads to less conservative stability conditions. The efficiency of the proposed robust control approaches for T-S descriptors as well as the benefit of the redundancy approach are shown through an academic example. Then, to show the applicability of the proposed approaches, the benchmark stabilization of an inverted pendulum on a cart is considered.
本文考虑了 Takagi-Sugeno(T-S)描述符的新鲁棒 H(infinity)控制器设计方法。基于线性矩阵不等式,提出了两种不同的方法。第一种方法涉及“经典闭环动力学”的公式,而第二种方法涉及“冗余闭环动力学”的方法。所提供的条件是通过模糊李雅普诺夫函数候选和非 PDC 控制律获得的。比较了经典方法和冗余方法。结果表明,后者导致了更不保守的稳定性条件。通过一个学术示例,展示了 T-S 描述符的所提出的鲁棒控制方法的有效性和冗余方法的优势。然后,为了展示所提出的方法的适用性,考虑了在小车上倒立摆的基准稳定化。