| 一种新型的三电平逆变器中点电压平衡控制策略 |
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| 引用本文： | 刘丽俊,赵明伟,张同庄. 一种新型的三电平逆变器中点电压平衡控制策略[J]. 机械制造与自动化, 2005, 34(1): 87-89,92 |
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| 作者姓名： | 刘丽俊 赵明伟 张同庄 |
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| 作者单位： | 中国矿业大学信电学院,江苏,徐州,221008;徐州师范大学工学院,江苏,徐州,221011 |
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| 摘 要： | 三电平逆变器中直流侧中点电容电压平衡问题直接影响着逆变器及其电机调速系统的可靠性。文章首先介绍了三电平逆变器的SVPWM算法；在此基础上，提出采用动态调整正负空间电压矢量作用时间的方法来实现中点电位平衡，并作了具体的阐述。理论分析和仿真结果表明，此方法能有效地平衡三电平逆变器的中点电压。
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| 关 键 词： | 三电平逆变器 SVPWM 中点电压平衡 正负空间电压矢量 动态调整 |
| 文章编号： | 1671-5276(2005)01-0087-03 |
A New-style Control Strategy of the Neutral Point Potential Balance for the 3-level Inverter |
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| LIU Li-jun,ZHAO Ming-wei,ZHANG Tong-zhuang. A New-style Control Strategy of the Neutral Point Potential Balance for the 3-level Inverter[J]. Machine Building & Automation, 2005, 34(1): 87-89,92 |
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| Authors: | LIU Li-jun ZHAO Ming-wei ZHANG Tong-zhuang |
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| Affiliation: | LIU Li-jun~1,ZHAO Ming-wei~2,ZHANG Tong-zhuang~1 |
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| Abstract: | The neutral point potential balance is one of the key aspects that affect the reliability of 3-level inverter and it's timing system. In order to realize the balance of DC capacitor voltage, the paper brings forward a novel method based on the arithmetic of SVPWM, which adopts the measure of adjusting the operating time of the positive and negative space voltage vectors. The new method is verified by simulating experiment. |
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| Keywords: | 3-level inverter SVPWM neutral point potential balance positive and negative space voltage vector timely adjust |
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