| 基于合成中矢量的三电平PWM整流器中点平衡新方法 |
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| 引用本文： | 伍文俊,钟彦儒,伍超.基于合成中矢量的三电平PWM整流器中点平衡新方法[J].电气传动,2007,37(12):26-30. |
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| 作者姓名： | 伍文俊 钟彦儒 伍超 |
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| 作者单位： | 西安理工大学 |
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| 摘 要： | 通过分析各种矢量对三相三电平PWM整流器中点电位的影响,提出了一种基于合成中矢量的新的5段式矢量调制算法.采用Matlab对新型5段式和传统7段式三电平PWM整流系统进行了对比仿真.结果表明,该法从中矢量入手,有效地解决了在小输出滤波电容情况下,PWM整流器瞬态过程中的中点电位不平衡问题.
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| 关 键 词： | 三电平PWM整流器 合成中矢量 中点平衡 |
| 收稿时间： | 2006-06-21 |
| 修稿时间： | 2007-07-07 |
Novel Neutral Point Voltage Balance Method of 3-phase 3-level PWM Rectifier on Synthesizing Radial Vector |
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| Wu Wenjun,Zhong Yanru,Wu Chao.Novel Neutral Point Voltage Balance Method of 3-phase 3-level PWM Rectifier on Synthesizing Radial Vector[J].Electric Drive,2007,37(12):26-30. |
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| Authors: | Wu Wenjun Zhong Yanru Wu Chao |
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| Affiliation: | Wu Wenjun Zhong Yanru Wu Chao |
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| Abstract: | By analyzing the influences of all space vector upon the neutral point voltage of three-phase three-level PWM rectifier,a novel five-section vector modulating method based on synthesizing radial vector was proposed.The simulations of three-level PWM rectifier are completed by using the new five-section modulation and traditional seven-section modulation.The result shows that the transient neutral point voltage balance has effectively been controlled with new method under small capacitor. |
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| Keywords: | three-level PWM rectifier synthesizing radial vector neutral point balance |
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