单相三电平SVPWM算法及其与零序电压注入载波PWM的关系

Proceedings of The 7th International Power Electronics and Motion Control Conference Pub Date : 2012-06-02 DOI:10.1109/IPEMC.2012.6259081

Wensheng Song, Xiaoyun Feng, Chenglin Xiong, X. Ge

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引用次数: 4

摘要

中性点箝位三电平变换器的一个重要问题是中性点电压的波动。针对铁路牵引传动系统中广泛应用的单相三电平变流器，提出了一种带中性点电压平衡的SVPWM策略。详细分析了所采用的SVPWM与零序电压注入载波脉宽调制(CBPWM)之间的关系。理论分析表明，SVPWM是一种特殊类型的CBPWM-ZSVI方法。通过仿真和实验验证了该方案的性能。

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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Single phase three-level SVPWM algorithm and its relationship with carrier-based PWM with zero-sequence voltage injection

A significant problem of three-level neutral-point clamped (NPC) converters is the fluctuation of the neutral-point voltage. A SVPWM strategy with neutral point voltage balancing for single phase three-level converters adopted widely in railway traction drive system is proposed in this paper. The relationship between the adopted SVPWM and carrier-based pulse width modulation (CBPWM) with a zero-sequence voltage injection (ZSVI) is analyzed in details. Theoretical analysis shows that SVPWM is a special type of CBPWM-ZSVI methods. Performance of the proposed SVPWM scheme is verified by simulation and experimental test.

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Proceedings of The 7th International Power Electronics and Motion Control Conference

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