|
|
|
| Zero-Sequence Signal of Space Vector Modulation for Three-Level Neutral-Point-Clamped Inverter Based on Vector Diagram Partition |
| Song Wenxiang1, Ai Qian2, Yun Weijun2, Chen Chen2 |
| 1. Shanghai University Shanghai 200072 China 2. Shanghai Jiaotong University Shanghai 200240 China |
|
|
|
|
Abstract This paper proposes a novel method for analyzing the zero-sequence signal of three-level voltage-source inverter based on vector diagram partition. The inherent relation between carried-based PWM and SVPWM is demonstrated. It is shown that the two method can work equivalently through proper selection of active time for the redundant vector in the case of space vector modulation, or zero-sequence signal injections in the case of carried-based modulation. Both simulation and experimental results verify the effectiveness of proposed approach.
|
|
Received: 28 February 2009
Published: 18 February 2014
|
|
|
|
|
|
[1] Kanchan R S, Baiju M R, Mohapatra K K, et al. Space vector PWM signal generation for multilevel inverters using only the sampled amplitudes of reference phase voltages[J]. IEE Proc. Electr. Power Appl., 2005, 152(2): 217-223.
[2] Nikola Celanovic, Dushan Boroyevich. A fast space-vector modulation algorithm for multilevel three-phase converters[J]. IEEE Transactions on Industry Applications, 2001, 37(2): 637-641.
[3] 熊健, 张凯, 康勇, 等. 空间矢量脉宽调制的调制波分析[J]. 电气自动化, 2002, 24 (3): 7-11.
[4] 周卫平, 吴正国, 唐劲松, 等. SVPWM的等效算法及SVPWM与SPWM的本质联系[J]. 中国电机工程学报, 2006, 26(2): 133-137.
[5] 姜艳姝, 徐殿国, 赵洪. 多电平SPWM变频器中共模电压抑制技术的研究[J]. 中国电机工程学报, 2005, 25(3): 18-22.
[6] 宋强, 刘文华, 严干贵, 等. 基于零序电压注入的三电平NPC逆变器中点电位平衡控制方法[J]. 中国电机工程学报, 2004, 24(5): 57-62.
[7] Dong Hyun Kim, et al. The analysis and comparison of carrier-based PWM methods for 3-level inverter[C]. Industrial Electronics Society, 2000. IECON 2000. 26th Annual Conference of the IEEE, 2000: 1316 -1321.
[8] 宋文祥, 陈国呈, 丁肖宇, 等. 基于两类脉宽调制方式本质联系的三电平逆变器中点电压平衡控制的研究[J]. 电工技术学报, 2005, 20(12): 53-58.
[9] 宋文祥, 陈国呈, 武慧, 等. 一种具有中点电压平衡功能的三电平空间矢量调制方法及其实现[J]. 中国电机工程学报, 2006, 26(12): 95-100.
[10] Vladimir Blasko. A hybrid PWM strategy combining modified space vector and triangle comparison methods[C]. PESC’96, Baveho, (VB), Italy, 1996: 1872-1878. |
|
|
|
2009, Vol. 24 
