基于单相三电平中性点箝位级联整流器的电压平衡顺序脉冲调制策略

2018 Asian Conference on Energy, Power and Transportation Electrification (ACEPT) Pub Date : 2018-10-01 DOI:10.1109/ACEPT.2018.8610665

Xiaoqiong He, Haolun Yu, Pengcheng Han, Xu Peng, Xiaoqiong He, Koh Leonghai

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引用次数: 1

摘要

针对单相三电平中性点箝位级联整流器(3LNPC-CR)模块间直流电压不平衡的问题，提出了一种序列脉冲调制(SPM)策略。调制通过三个步骤实现各模块直流侧电压平衡:(1)相位配置计算;(2) SPM发生器;(3)秩函数。此外，这种调制还避免了电网侧的“电压电平跳变”现象，可以有效降低开关的频率。仿真和实验验证了所提调制方法的正确性。

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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Sequence Pulse Modulation Strategy for Voltage Balance Based on Single-Phase Three-Level Neutral Point Clamped Cascaded Rectifier

In this article, a sequence pulse modulation (SPM) strategy is proposed to solve the problem that the DC voltage is imbalance among the modules of single-phase three-level Neutral Point Clamped Cascaded Rectifier (3LNPC-CR). The modulation achieves the DC side voltage balance of each module through three steps: (1) Phase disposition calculation; (2) SPM generator; (3) Rank function. In addition, this modulation also avoids the phenomenon of “voltage level jumping” on the grid side, which can effectively reduce the frequency of the switch. The correctness of the proposed modulation is verified by simulation and experiments.

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来源期刊

2018 Asian Conference on Energy, Power and Transportation Electrification (ACEPT)

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