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热连轧活套系统的解耦补偿预测控制

Keywords: 热连轧,预测控制,解耦控制,活套控制

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Abstract:

针对热连轧活套系统的强耦合特性,提出一类基于预测原理的交叉解耦控制策略.将一个两输入两输出的强耦合系统分解成两个相互影响的单输入单输出的子系统.基于预测控制原理,在一个周期内,顺序更新每个子系统的控制律,并保留未来的预测控制信息,补偿子系统之间的耦合影响,然后开始新的循环.基于H∞原理,将预测值与实际值的误差作为扰动处理,降低子系统之间的耦合影响,提高控制精度,简化控制器设计,减轻计算机的负担.仿真结果证实了该方法具有较好的解耦效果和控制性能.

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