5L full-scale converter with a dc-link flying-capacitor auxiliary bridge leg for large direct-drive wind turbines

5L full-scale converter with a dc-link flying-capacitor auxiliary bridge leg for large direct-drive wind turbines
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用于大型直驱风力涡轮机的具有直流母线飞电容辅助桥臂的 5L 全尺寸转换器

DOI:
10.1049/iet-epa.2016.0251
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发表时间:
2017-07
影响因子:
1.7
通讯作者:
Yang Xu
Yang Xu
中科院分区:
工程技术4区
文献类型:
--
作者:
Wang Hang;Zeng Xiang-jun;Zhang Mei-mei;He Ying-ying;Zhang Xiao;Yang Xu

文献摘要

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相似文献

提出了一种用于大型直驱风力涡轮机的新型五电平(5L)满量程转换器。在该方案中,使用5L维也纳整流器作为稳健的发电机侧变流器,使用5L中性点钳位逆变器作为网侧变流器,并采用飞电容辅助桥臂来维持直流电容器的电压平衡。本研究首先讨论了基于飞电容辅助桥臂和调制的中点平衡方法。此外,它还提出了所提出的 5L 转换器的控制策略。最后通过仿真和小规模实验验证了分析结果。
A novel five-level (5L) full-scale converter is proposed for large direct-drive wind turbines. In this scheme, a 5L-Vienna rectifier is used as a robust generator-side converter and a 5L neutral-point-clamped inverter as a grid-side converter, a flying-capacitor auxiliary bridge leg is proposed to maintain the voltage balance of the dc capacitors. This study first discusses the neutral-point balancing method based on the flying-capacitor auxiliary bridge leg and modulation. Furthermore, it presents the control strategies for the proposed 5L converter. Finally, simulation and small-scale experiments are carried out to verify the analysis.
基于 STATCOM 的二极管钳位多电平转换器的具有直流链路电容器电压平衡控制的多电平 SVPWM
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发表时间: 2013-05
影响因子: 7.7
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