【作者】 王益群； 孙孟辉； 张伟； 刘建；

【Author】 WANG Yiqun SUN Menghui ZHANG Wei (College of Mechanical Engineering,Yanshan University 066004)

【机构】 燕山大学机械工程学院；

【摘要】 板带轧机的构成是复杂的,其控制系统日益精密化和智能化。但是,目前广泛应用于现场的PID控制策略, 由于其鲁棒性较差,已经难于满足进一步提高板带轧机控制精度的要求。因此,针对板带轧机位置伺服系统,应用广义动态矩阵控制理论,设计预测控制器,采用了滚动优化、反馈校正的控制策略。并构造状态观测器,使控制系统具有带观测器的状态反馈形式,不断的修正预测模型,增强了系统的鲁棒性。该控制算法,基于系统的阶跃响应,具有较强的稳定性和鲁棒性。同时,提出了上述控制策略的计算机控制实现方法,仿真研究结果表明该方法远比目前带钢生产中广为采用的PID控制策略优越,具有智能性,且易于实现．更多还原

【Abstract】 The structure of the strip mill is complicated, and its control system becomes more and more precise and intellective. But the PID control strategy, being comprehensively used in the locale, is difficult to satisfy the request of improving the control precision of the strip mill, because the robust is not very well. So the generalized dynamic matrix control was applied in its system, which designed the predictive controllers and adopted the strategy of the receding-horizon optimization, and the feedback correction. The state observer was constructed, which made the control system have the state feedback form with the observer, and strengthened the robust of the system by correcting the predictive model. The control algorithm has the strong stability and the robust, based the system step response. At the same time, the realization strategy of the computer control was provided. The method is easy to be realized and has intelligent capability. The simulation result indicates that its control effect is better than that of the traditional PID control which is comprehensively used in the strip production.更多还原