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A combined iterative scheme for identification and control redesigns

机译:用于识别和控制重新设计的组合迭代方案

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摘要

This work proposes a unified algorithm for identification and control. Frequency domain data of the plant is weighted to satisfy the given performance specifications. A model is then identified from this weighted frequency domain data and a controller is synthesised using the H_∞ loopshaping design procedure. The cost function used in the identification stage essentially minimizes a tight upper bound on the difference between the achieved and the designed performance in the sense of the H_∞ loopshaping design paradigm. Given a model, a method is also suggested to re-adjust model and weighting transfer functions to reduce further the worst case chordal distance between the weighted true plant and the model.
机译:这项工作提出了一种用于识别和控制的统一算法。对工厂的频域数据进行加权以满足给定的性能规格。然后,从该加权频域数据中识别出一个模型,并使用H_∞环路整形设计程序对控制器进行综合。在识别阶段使用的成本函数从H_∞环路整形设计范式的意义上说,实质上使实现的性能与设计的性能之间的差异的上限严格最小化。给定一个模型,还建议一种重新调整模型和加权传递函数的方法,以进一步减小加权真实植物与模型之间最坏情况的弦距离。

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