| 一种具有中点电压平衡功能的三电平空间矢量调制方法 |
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| 引用本文： | 陈国呈,宋文祥,武慧,孙承波.一种具有中点电压平衡功能的三电平空间矢量调制方法[J].上海大学学报(英文版),2006,10(1):53-58. |
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| 作者姓名： | 陈国呈 宋文祥 武慧 孙承波 |
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| 作者单位： | Shanghai Key Laboratory of Power Station Automation Technology Shanghai University Shanghai 200072 P. R. China，Shanghai Key Laboratory of Power Station Automation Technology Shanghai University Shanghai 200072 P. R. China，Shanghai Key Laboratory of Power Station Automation Technology Shanghai University Shanghai 200072 P. R. China，Shanghai Key Laboratory of Power Station Automation Technology Shanghai University Shanghai 200072 P. R. China |
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| 基金项目： | ProjectsupportedbyShanghaiLeadingAcademicDisciplineProject(GrantNo.T0103) |
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| 摘 要： | 1IntroductionThe most popular multi-level topology is the three-level inverter1-4],first proposed as“neutral-point-clamped(NPC)inverter”,selectingrelativelylarge ca-pacitors for the capacitor bank.The performance ofoutput voltage of inverter is mainly determined by thepulse width modulation strategy.Space vector pulsewidth modulation(SVPWM)is widely applied becauseof such advantages as convenient realization and fullDC-link voltage utilization.The schematic of a three-level inverter is …
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| 关 键 词： | 中性点钳位电路变换器 中性点电位控制 分配系数 空间矢量脉宽调制 |
| 文章编号： | 1007-6417（2006）01-0093-06 |
| 收稿时间： | 2005-09-01 |
A novel SVPWM strategy considering neutral-point potential balancing for three-level NPC inverter |
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| Guo-cheng Chen Ph. D.,Wen-xiang Song,Hui Wu,Cheng-bo Sun.A novel SVPWM strategy considering neutral-point potential balancing for three-level NPC inverter[J].Journal of Shanghai University(English Edition),2006,10(1):53-58. |
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| Authors: | Guo-cheng Chen Ph D Wen-xiang Song Hui Wu Cheng-bo Sun |
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| Institution: | Shanghai Key Laboratory of Power Station Automation Technology, Shanghai University, Shanghai 200072, P. R. China |
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| Abstract: | This paper proposes a novel SVPWM (space vector pulse width modulation) strategy for the three-level neutral-point-clamped voltage source inverter, based on the particular disposition of all the redundant voltage vectors. The new modulation approach shows superior performance for harmonic voltage and balancing control of neutral-point potential compared to the popular eight-stage centered SVPWM. It realizes suppression of inverter neutral-point potential variation by accurately modifying redundant factor of small vectors pairs, only requiring information of DC-link capacitor voltages and three-phase load currents. This is convenient to apply and is compa- tible of digital computer realization. Feasibility of the proposed control approach is verified by simulation and experimental results. |
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| Keywords: | neutral-point-clamped inverter neutral-point potential control SVPWM distribution factor |
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