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为了缩短控制系统的调节和整理时间,提出了变饱和状态柔性变结构控制系统设计方法。该方法在系统存在较大偏差时只通过线性控制器调节,在中等偏差时通过线性控制器和变饱和状态控制器一起调节,在小偏差时由线性控制器和由变饱和状态控制器转变的线性控制器一起调节,从而提高了对控制约束的利用。仿真结果表明:该方法在调节和整理时间以及跟踪精度上均优于滑模控制,而且控制信号平滑。
In order to shorten the adjustment and finishing time of the control system, a design method of flexible variable structure control system is proposed. The method is only adjusted by the linear controller when there is a large deviation of the system, and adjusted by the linear controller and the variable saturation controller when there is a medium deviation, and by the linear controller and by the variable saturated controller when there is a small deviation The linear controllers are tuned together, increasing the utilization of control constraints. The simulation results show that this method is superior to sliding mode control in adjusting and finishing time and tracking accuracy, and the control signal is smooth.