| 引用本文: | 张鹏,吴学智,祝天岳,梅子扬,续文政.飞跨电容型多电平整流器载波重构调制策略[J].电力自动化设备,2024,44(5):178-184. |
| ZHANG Peng,WU Xuezhi,ZHU Tianyue,MEI Ziyang,XU Wenzheng.Carrier redistribution modulation strategy of flying capacitor multilevel rectifier[J].Electric Power Automation Equipment,2024,44(5):178-184. |
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| 摘要: |
| 针对飞跨电容型多电平整流器存在众多冗余开关状态的特性及飞跨电容的电压平衡控制需求，提出一种通用的载波重构调制策略。该策略通过构造多段锯齿形载波来增加调制自由度，在保持与载波同相层叠调制策略相同的线电压谐波性能的同时，还具备载波移相调制策略的飞跨电容电压自平衡特性。仿真与实验结果验证了所提调制策略的有效性。 |
| 关键词: 飞跨电容型多电平整流器 载波重构调制 谐波性能优化 电容电压自平衡 |
| DOI：10.16081/j.epae.202311004 |
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| Carrier redistribution modulation strategy of flying capacitor multilevel rectifier |
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ZHANG Peng1, WU Xuezhi1, ZHU Tianyue2, MEI Ziyang2, XU Wenzheng1
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1.National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China;2.China Academy of Shipbuilding Industry Systems Engineering, Beijing 100094, China
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| Abstract: |
| In view of the characteristic of flying capacitor multilevel(FC-ML) rectifier with many redundant switching states and the voltage balance control requirement of flying capacitor, a general carrier redistribution modulation strategy is proposed. This strategy increases the modulation freedom by constructing multi-segment sawtooth carriers, which maintains the same harmonic performance of line voltage as the phase disposition pulse width modulation strategy, and also has the flying capacitor voltage self-balancing characteristic of phase shift pulse width modulation strategy. Simulative and experimental results verify the effectiveness of the proposed modulation strategy. |
| Key words: flying capacitor multilevel rectifier carrier redistribution modulation harmonic characteristic optimization capacitor voltage self-balancing |
