仿射多项式矩阵的鲁棒D稳定性分析
Robust D-Stability Analysis for Affine Polynomial Matrices
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摘要: 研究仿射多项式矩阵的鲁棒D稳定性问题,该多项式矩阵仿射地依赖于独立摄动的不确定参数.提出了检验仿射多项式矩阵的鲁棒性D稳定的充分条件,研究的D域为复平面的左半平面上广义二阶线性矩阵不等式(LMI)域.采用线性矩阵不等式和多凸性处理方法,证明了该问题等价于线性矩阵不等式的可解性问题.最后,通过数值实例说明该方法的有效性.Abstract: Robust D-stability problem is studied for affine polynomial matrices that depend affinely on uncertain parameters. The sufficient condition on robust D-stability test of polynomial matrices is established. Second-order GLMI region in the left-half plane of the complex plane is considered. In terms of multiconvexity and linear matrix inequality, this problem is proved to be equivalent to an LMI feasible problem. Finally, a numerical example is given to illustrate validity of the method.
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