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Synthesis of PID-type controllers without parametric models: A graphical approach

机译:不带参数模型的PID型控制器的综合:一种图形方法

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This paper considers the problem of determining the set of all stabilizing proportional-integral-derivative (PID) type controllers without parametric models for any given linear time-invariant (LTI) plants. It is shown that the only information for designing is the frequency response data and the number of right-half-plane (RHP) poles of the plant, and all stabilizing domains in the parameter space of PID-type controllers are determined by the boundaries which are analytically described based on the technique of D-decompo-sition. The method can handle arbitrary order minimum phase, non-minimum phase, stable or unstable plants and particularly, plants that have zeros or poles on the imaginary axis. It is shown that the approach presented does not require any parametric models of plants and can be applied to a wide range of industrial applications, especially where plants parametric models (transfer function and state space) are not available or identification is difficult. Several examples illustrate the proposed method.
机译:本文考虑了为任何给定的线性时不变(LTI)工厂确定没有参数模型的所有稳定比例-积分-微分(PID)型控制器的集合的问题。结果表明,设计的唯一信息是设备的频率响应数据和右半平面(RHP)极数,PID型控制器的参数空间中的所有稳定域均由边界确定。基于D分解技术对它们进行了分析描述。该方法可以处理任意阶的最小相位,非最小相位,稳定或不稳定的植物,尤其是在虚轴上具有零或极的植物。结果表明,所提出的方法不需要任何植物参数模型,并且可以应用于广泛的工业应用,尤其是在植物参数模型(传递函数和状态空间)不可用或识别困难的情况下。几个示例说明了该方法。

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