Simplified multilevel space vector pulse-width modulation scheme based on two-level space vector pulse-width modulation

被引：10
|
作者：
Wu, F. J. [1 ]
Zhao, K. [1 ]
Sun, L. [1 ]
机构：
[1] Harbin Inst Technol, Dept Elect Engn, Harbin 150001, Peoples R China
来源：
IET POWER ELECTRONICS | 2012年 / 5卷 / 05期
关键词：
INVERTERS; PWM; CONVERTERS; ALGORITHM;
D O I：
10.1049/iet-pel.2011.0176
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel simplified multilevel space vector pulse-width modulation (SVM) scheme is proposed based on the two-level SVM. The voltage vectors with same amplitude and phase angle are applied to the various power units of cascaded multilevel inverter (CMLI), and the refresh times of various vectors are delayed in order, thus the corresponding multilevel output voltage waveform is formatted. During every sampling period, only the on-times of main and auxiliary voltage vectors of one-stage unit are calculated based on a two-level SVM algorithm, so the computational complexity is independent on the unit-cascaded number. Then the algorithm is simplified, and the expandability is enhanced. The simulation and experimental results prove the validity and feasibility of the novel scheme.
引用
收藏
页码：609 / 616
页数：8
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