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基于改进滤波器的非方时滞过程解耦控制

Decoupling control method based on modified filter for non-square system with time delays
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摘要 为解决非方时滞系统中耦合和外界输入输出扰动的影响,提出了一种改进的解耦控制方法。首先根据奇异值分解理论对系统进行解耦,结合Smith预估结构并利用内模控制原理设计集中式PI控制器。然后根据过程中的慢动态极点设计改进的反馈滤波器,以加快系统对输入和输出干扰的抑制。仿真实例验证了所设计方法的有效性。 A modified decoupling control method is proposed to weaken internal coupling and reject external input/output disturbances for multivariable non-square system with time delays.Firstly,a decoupling method is presented based on singular value decomposition.Then,a centralized PI controller is designed by combining the Smith predictor structure and the internal model control principle.The feedback filters are modified to improve the performance for disturbance rejection,based on the slow poles.Finally,simulation results demonstrate the effectiveness of the proposed method.
出处 《中国科技论文》 CAS 北大核心 2016年第2期164-167,共4页 China Sciencepaper
基金 国家自然科学基金资助项目(61273132) 高等学校博士学科点专项科研基金资助项目(20110010110010)
关键词 非方系统 Smith结构 静态解耦 奇异值分解 内模控制 non-square system Smith structure static decoupling singular value decomposition internal model control
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