本文阐述了应用极点配置技术进行变结构控制系统(Variable Structure Control System,简称VSS)设计的原理与方法。针对水轮发电机组的具体特性提出了一种变结构与积分并联复合控制方案,首次将滑模变结构控制引入水电机组控制之中。仿真研究表明,这种控制器既具有VSS的鲁棒性,又具有积分控制消除静态误差之功能,调节品质优于经典PID控制 This paper describes the principle and method of using pole placement technology to design variable structure control system (VSS). Aiming at the specific characteristics of hydroelectric generating units, a compound control scheme of variable structure and integral parallel is proposed. For the first time, sliding mode variable structure control is introduced into hydroelectric unit control. The simulation results show that this controller not only has the robustness of VSS, but also has the function of integral control to eliminate static error, and the adjustment quality is better than the classical PID control