摘要
为了提高轧机液压伺服系统控制精度,提出了基于滑模控制器和抗扰动控制相结合的控制方法,其在抖动衰减和鲁棒性方面都优于其他控制器。首先分析了轧机AGC控制原理,并建立了控制系统模型。在此基础上设计出滑模控制器,并验证了其对外部干扰以及负载变化的不确定性情况下的控制精度。最后,在闭环控制系统上加入一个状态观测器,实现输出反馈控制。通过仿真,证明了该控制方法的有效性和稳定性。
In order to improve the control accuracy of rolling mill hydraulic servo system, a control method based on the combination of sliding mode controller and anti disturbance control is proposed, which is superior to other controllers in jitter attenuation and robustness. Firstly, the AGC control principle of rolling mill is analyzed, and the control system model is established. On this basis, the sliding mode controller is designed, and its control accuracy under the uncertainty of external disturbance and load change is verified. Finally, a state observer is added to the closed-loop control system to realize output feedback control. The effectiveness and stability of the control method are proved by simulation.
作者
赵景泉
Zhao Jingquan(Steelmaking Plant of Laiwu Branch of Shandong Iron and Steel Co.,Ltd.,Laiwu 271104)
出处
《冶金设备》
2022年第1期34-37,27,共5页
Metallurgical Equipment
关键词
轧机
伺服系统
滑模控制
状态观测器
Rolling mill
Servo system
Sliding mode control
State observer
