摘要：提出了一种适用于不确定性线性系统的变结构自适应模型跟踪控制器设计方法.所设计的变结构控制律包括两部分,即线性控制部分和非线性切换控制部分.考虑到实际问题中,对于有些不确定性系统的系统参数变化比较剧烈且并变化范围的界很难预先估计,在设计控制律时引入了对系统参数变化的自适应算法,进一步增强了系统的适应性和鲁棒性.数字仿真表明了其有效性.

摘要：A discrete observer-based repetitive control(RC) design method for a linear system with uncertainties was presented based on two-dimensional(2D) system theory. Firstly, a 2D discrete model was established to describe both the control behavior within a repetition period and the learning process taking place between periods. Next, by converting the designing problem of repetitive controller into one of the feedback gains of reconstructed variables, the stable condition was obtained through linear matrix inequality(LMI) and also the gain coefficient of repetitive system. Numerical simulation shows an exceptional feasibility of this proposal with remarkable robustness and tracking speed.

摘要：阈值的确定是基于模型的故障检测过程中重要的一环,文中利用具有不确定性双线性系统作为误差系统来生成残数.将该残数与设定的阈值进行比较,该阈值由具有未知不确定上界作为参数的线性系统生成.而这些未知不确定性上界可由某些设计参数替代.基于这一观点,提出了一种算法来选择设计参数值,以使无故障时选定的阈值大于残数值.应用实例表明动态生成阈值可以极大减少故障的误报率,从而验证了该参数设计算法的有效性.

摘要：本文研究具有参数不确定线性系统的鲁棒极点配置问题。根据对系统的各种性能指标要求给出综合性能指标。采用极点着色优化算法，给出了满足鲁棒极点配置的反馈K阵。研究了K阵选择的保守性问题。设计实例说明了本文所提算法的有效性。