| 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].防爆电机,2005,40(2):21-24. |
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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： | 1. 中国矿业大学,江苏徐州,221008
2. 徐州师范大学,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 中点电压平衡 正负空间电压矢量 动态调整 |
| 文章编号： | 1008-7281(2005)02-0021-04 |
| 修稿时间： | 2004年10月26 |
A New Control Strategy for the Neutral Point Potential Balance for the 3-Level Inverter |
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| Liu Lijun,Zhao Mingwei,Zhang Tongzhuang.A New Control Strategy for the Neutral Point Potential Balance for the 3-Level Inverter[J].Explosion-proof Electric Machine,2005,40(2):21-24. |
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| Authors: | Liu Lijun Zhao Mingwei Zhang Tongzhuang |
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| Abstract: | The neutral point potential balance is one of the key aspects that affects the realiability of a 3-level inverter and its speed-adjusting system.This paper firstly introduces the SVPWM algorism,then based on it presents a method that can balance the neutral point potential by dynamic adjustment of operating time of the positive and negative space voltage vectors,and describes it.The result shows that this method can effectively balance the neutral voltage of 3-level inverter through theoretical analysis and simulation. |
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| Keywords: | SVPWM |
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