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本文对离散变结构控制进行了深入研究．针对伺服系统的特点，提出了一种新的变结构控制策略—ＩＶＳＣ．它由积分控制Ｉ和变结构控制ＶＳＣ复合而成，因此当系统存在外部干扰和参数变化时仍可获得准确的跟踪性能和良好的鲁律性．应用所提出的控制策略对泵控马达速度伺服系统进行控制的仿真结果表明控制效果是相当满意的．
In this paper, discrete variable structure control conducted in-depth study. Aiming at the characteristics of servo system, a new variable structure control strategy -IVSC is proposed. It is composed of integral control I and variable structure control VSC, so accurate tracking performance and good robustness can be obtained when the system has external disturbance and parameter changes. The simulation results of the application of the proposed control strategy to the speed control system of the pump-controlled motor indicate that the control effect is quite satisfactory.