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化工学报  2013 

连续搅拌釜式反应器的鲁棒最优控制

DOI: 10.3969/j.issn.0438-1157.2013.11.031, PP. 4114-4120

Keywords: 滑模控制,连续搅拌釜式反应器,不确定非线性系统,鲁棒最优控制,反馈线性化

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Abstract:

针对一类带不确定性的连续搅拌釜式反应器,提出基于滑模控制理论的鲁棒最优控制算法。输入输出线性化方法用于线性化对象模型,假设系统的不确定因素有界,滑模面采用积分型滑模面以确保系统稳态误差为零,将线性二次型理论用于等效控制律的设计中,保证了系统的性能指标最优,自适应滑模切换控制增益的选取在降低系统抖振的前提下补偿了系统的不确定因素及外部扰动,实现了控制器的鲁棒最优。通过仿真实验表明,提出的控制器对匹配的不确定性因素及外部扰动具有鲁棒性,且闭环系统的性能指标最优。

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