最小脉宽限制对电网变流器直流电压自适应控制的影响及分析

2016 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2016-03-20 DOI:10.1109/APEC.2016.7468047

Bo Sun, I. Trintis, S. Munk‐Nielsen, J. Guerrero

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引用次数: 3

摘要

本文提出了一种自适应直流电压控制器，用于降低背靠背变换器系统的直流工作电压。在传统直流电压控制器的基础上，增加了控制最大调制指数(Mmax)的外环，使系统能够根据系统的工作状态在线调整直流电压基准。进一步分析了电流THD、最小脉宽限制和Mmax指标参考之间的关系，以获得系统的最优性能。最后，通过实验结果对控制器的动态性能进行了研究和分析。

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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Effects and analysis of minimum pulse width limitation on adaptive DC voltage control of grid converters

This paper presents an adaptive dc-link voltage controller for the purpose of decreasing the operating dc-link voltage in a back-to-back converter system. An outer loop to control the maximum modulation (Mmax) index is added to the conventional dc-link voltage controller, and hence the system can online adapt its dc-link voltage reference based on the system operating state. Furthermore, the relationship between current THD, minimum pulse width limitation and Mmax index reference is analyzed in order to obtain an optimized performance of the system. Finally, the dynamic performance and analysis of controller is investigated by experimental results.

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2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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