零相位误差跟踪的简化实现

IF 1.7 4区计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS

Journal of Dynamic Systems Measurement and Control-Transactions of the Asme Pub Date : 2021-03-01 DOI:10.1115/1.4049391

M. Tomizuka, Liting Sun

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引用次数: 4

摘要

零相位误差跟踪(ZPET)控制作为一种简单而有效的前馈控制方法，通过相对阶数大于或等于2的连续时间传递函数的对象输出来跟踪时变期望轨迹，得到了广泛的应用。在本文中，我们将注意到，为了自然实现零相位误差跟踪，对积分器链的零阶保持器等价1/sn的采样零点进行了配置。利用这一特性，实现了积分器链零相位误差跟踪控制的简化实现。当数字控制的采样周期较小时，该特性也可用于一般传递函数。通过仿真验证了该方法对一般传递函数的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Simplified Realization of Zero Phase Error Tracking

Zero phase error tracking (ZPET) control has gained popularity as a simple yet effective feedforward control method for tracking time varying desired trajectories by the plant output of a continuous time transfer function of relative order greater than or equal to two. In this paper, we will note that the sampling zeros of the zero-order hold equivalent of chain of integrators, 1/sn, are configured for natural realization of zero phase error tracking. This property is exploited to realize a simplified realization of zero phase error tracking control for chain of integrators. The property can also be utilized for general transfer functions when the sampling period for digital control is small. The effectiveness of the proposed approach for general transfer functions is demonstrated by simulations.

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来源期刊

Journal of Dynamic Systems Measurement and Control-Transactions of the Asme 工程技术-仪器仪表

CiteScore

3.90

自引率

11.80%

发文量

审稿时长

24.0 months

期刊介绍： The Journal of Dynamic Systems, Measurement, and Control publishes theoretical and applied original papers in the traditional areas implied by its name, as well as papers in interdisciplinary areas. Theoretical papers should present new theoretical developments and knowledge for controls of dynamical systems together with clear engineering motivation for the new theory. New theory or results that are only of mathematical interest without a clear engineering motivation or have a cursory relevance only are discouraged. "Application" is understood to include modeling, simulation of realistic systems, and corroboration of theory with emphasis on demonstrated practicality.