文章基本信息

标题：New tuning strategy for series cascade control structure
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作者：Md. Imran Kalim ; Ahmad Ali
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2020
卷号：53
期号：1
页码：195-200
DOI：10.1016/j.ifacol.2020.06.033
语种：English
出版社：Elsevier
摘要：In the presence of disturbances associated with the manipulated variable, performance of a single loop control structure can be improved with the help of a series cascade control. A design approach for a series cascade control system is proposed in this paper. The secondary controller is tuned by finding the centroid of the convex stability region to quickly attenuate the disturbances arising in the inner loop before they influence the controlled variable, whereas the primary controller is tuned by magnitude optimum criterion to achieve improved servo response in the outer loop. Servo and regulatory responses for the nominal model, as well as for the perturbed model of the plant obtained by the proposed method are compared with some recently reported tuning strategies. Simulation results show that the proposed tuning strategy yields improved closed-loop performance.
关键词：Cascade control;PID controller;All stabilizing controller;Magnitude optimum criterion