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针对多变量耦合系统,提出了一种基于解耦的时滞递推滑模预测控制的算法.该算法是在对角解耦的基础上,将预测算法和递推滑模控制结合起来,设计了递推滑模预测控制器.还对滑模参考轨迹进行了研究和分类,阐述了两种滑模参考轨迹的区别.该算法被应用在带钢板形板厚的控制过程中,试验和仿真结果表明,该方法可较好地消除带钢板形板厚控制中耦合与时滞的影响.

For multivariable system with time-delay, the recursive sliding mode predictive deeoupling method was de-signed. This method combines predictive control with sliding mode control for multivariable system which is diago-nally decoupled. The recursive sliding reference trajectory was studied and classified. The differences of two types of reference trajectories can be illustrated. Proposed method can be applied to a strip shape and gauge control system (ASC-AGC). Experiment and simulation results show that this method may be better to depress the coupling and time delay of ASC-AGC control system.

参考文献

[1] 宋立忠,陈少昌,姚琼荟.多输入离散时间系统滑模预测控制[J].电机与控制学报,2005(02):128-132.
[2] Jung-ho Kim;Dong-li.Discrete-Time Variable Structure Control Using Recursive Switching Function[A].Chicago IFAC,2000:1113.
[3] 孙一康.带钢热连轧的模型与控制[M].北京:冶金工业出版社,2002
[4] 宋立忠,李槐树,姚琼荟.基于趋近律方法的离散时间系统变结构控制[J].控制理论与应用,2008(03):525-528.
[5] Vegte J V.Feedback Control Systems[M].London:Prentice Hall Inc,1994
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