离散变结构控制的新方法及其在泵控马达速度伺服系统中的应用

The new technique of the discrete variable structure control and its application in pumpcont-rolled-motor speed servo system

本文从理论上证明了线性离散系统变结构控制（ＶＳＣ）的滑态可达性条件和控制律Ｕ（ｋ）的计算公式，给出了离散ＶＳＣ的设计方法，提出了一种新的ＶＳＣ－ＩＶＳＣ，它由积分控制器和ＶＳＣ复合而成，因此当系统存在参数变化和外部干扰时，仍可获得准确的跟踪性能和良好的鲁棒性。

The sliding mode reachability condition and the calculating formula of control lawU(k)of the variable structure control(VSC)ofthe linear discrete system is proved from theory,the design technique of controller is presented.This study puts forword a new kind of VSCIVSC, it comprises an integral controller followedby a variable structure controller,so systemcan achieve the accurate servotracking and fairrobust to plant parameter variations and externaldisturbances.