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Enhanced Control Design of Simple DC-DC Boost Converter-driven DC Motors: Analysis and Implementation

机译:简单DC-DC Boost转换器驱动的DC电动机的增强控制设计:分析和实现

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摘要

The DC-DC boost converter is one of the simplest power electronic devices that has not been yet exploited in a wide range of industrial applications due to control design difficulties caused by its model inherent special structure. Such an industrial application is the DC motor speed regulation that is studied in the present work. Particularly, in this article, a novel, non-linear control scheme for the duty ratio input of the converter is proposed, which is extensively analyzed and experimentally tested. The proposed design, though non-linear, results in a very simple scheme, ensures that the duty ratio takes values exclusively in the permitted range [0,1), achieves precise speed regulation even in cases of high unknown load disturbances, and does not depend on system parameters and states. Simultaneously, the design is formulated in a manner that provides a closed-loop passive system, which, as proven in the article, satisfies all these assumptions and properties that make possible the application of a new advanced non-linear method that strongly connects passivity with stability. Thus, the boundedness of all the closed-loop states and the stability and convergence to the desired steady-state equilibrium are directly concluded. The theoretical analysis is verified through extended simulation and experimental results.
机译:DC-DC升压转换器是最简单的电力电子设备之一,由于其模型固有的特殊结构导致控制设计困难,因此尚未在广泛的工业应用中得到开发。这样的工业应用是在当前工作中研究的直流电动机速度调节。特别是,在本文中,提出了一种新颖的,用于转换器的占空比输入的非线性控制方案,该方案经过了广泛的分析和实验测试。所提出的设计虽然是非线性的,但结果却是一个非常简单的方案,可确保占空比仅在允许的范围内[0,1)取值,即使在未知负载干扰很大的情况下也能实现精确的速度调节,并且不会取决于系统参数和状态。同时,以提供闭环无源系统的方式来设计设计,正如本文所证明的那样,该系统满足所有这些假设和特性,从而有可能应用一种新的高级非线性方法,该方法将无源性与稳定性。因此,直接得出所有闭环状态的有界性以及对所需稳态平衡的稳定性和收敛性。通过扩展的仿真和实验结果验证了理论分析。

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