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Analysis and synthesis of robust control systems viaparameter-dependent Lyapunov functions

机译:通过参数相关的Lyapunov函数对鲁棒控制系统进行分析和综合

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摘要

In this paper, the problem of robust stability of systems subject to parametric uncertainties is considered. Sufficient conditions for the existence of parameter-dependent Lyapunov functions are given in terms of a criterion which is reminiscent of, but less conservative than, Popov's stability criterion. An equivalent frequency-domain criterion is demonstrated. The relative sharpness of the proposed test and existing stability criteria is then discussed. The use of parameter-dependent Lyapunov functions for robust controller synthesis is then considered. It is shown that the search for robustly stabilizing controllers may be limited to controllers with the same order as the original plant. A possible synthesis procedure and a numerical example are then discussed
机译:在本文中,考虑了具有参数不确定性的系统的鲁棒稳定性问题。给出了一个与参数有关的Lyapunov函数存在的充分条件,该条件使人联想到但不如Popov的稳定性标准保守。证明了等效的频域准则。然后讨论了提出的测试和现有稳定性标准的相对清晰度。然后考虑使用参数相关的Lyapunov函数进行鲁棒的控制器综合。结果表明,对鲁棒稳定控制器的搜索可能仅限于与原始设备具有相同顺序的控制器。然后讨论了可能的合成程序和数值示例

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