离散时间系统的变结构控制及其品质

Variable Structure Control of Discrete-Time Systems and Their Quality

研究了离散时间系统的变结构控制综合及动态过程品质控制；讨论了到达条件；详细研究了准滑动模态的运动特性；基于稳定性及控制的简单实现，提出了自适应离散趋近律的概念；给出了周期收缩律和变结构控制的设计方法即趋近收缩法；

The design of variable structure control(VSC) of discrete-time systems and their quality control of the dynamical processes are studied. Through the review of the previously estabished versions of reaching conditions briefly, the characteristic of quasi-sliding mode is studied in detail. On the basis of stability and simple form of control the conception of adaptive discrete reaching law is proposed. The periodic convergence law is given and the reaching-convergence method is built to design VSC, which solves the steady-state chattering and optimizes the movement quality of all processes.