| 三相多电平逆变器SVPWM的一种统一快速算法 |
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| 引用本文： | 李子欣,王平.三相多电平逆变器SVPWM的一种统一快速算法[J].电力电子技术,2007,41(10):87-89. |
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| 作者姓名： | 李子欣 王平 |
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| 作者单位： | 1. 中国科学院电工研究所,北京,100080;中国科学院研究生院,北京,100039
2. 中国科学院电工研究所,北京,100080 |
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| 摘 要： | 根据伏秒积平衡原理,提出了多电平逆变器空间矢量脉宽调制(SVPWM)的一种统一快速算法.该算法无需确定电压空间矢量(VSV)所在的扇区,无需确定相邻的合成矢量,只需根据简单的四则运算就能确定逆变器的开关状态,且随电平数的增加,运算量增加很少,大大减小了计算量.这里分别对以TMS320LF2407 DSP为控制核心的400Hz中频电源上两电平的实验结果和三电平、五电平逆变器的仿真实验结果进行了方法正确性和有效性的验证.
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| 关 键 词： | 逆变器 脉宽调制 矢量控制 |
| 文章编号： | 1000-100X（2007）10-0087-03 |
| 修稿时间： | 2007-05-09 |
Fast and Uniform Algorithm of SVPWM for Multi-level Inverter |
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| LI Zi-xin,WANG Ping.Fast and Uniform Algorithm of SVPWM for Multi-level Inverter[J].Power Electronics,2007,41(10):87-89. |
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| Authors: | LI Zi-xin WANG Ping |
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| Affiliation: | 1.Institute of Electrical Engineering Chinese Academy of Sciences, Beijing 100080, China; 2.Graduate University of Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | A fast and uniform SVPWM algorithm for multi-level inverter is presented according to the Volt-second balance principle.The switching state of each arm bridge of the inverter can be determined easily without much calculation,unlike the conventional SVPWM algorithm which needs to calculate the voltage space vector's position and the two adjacent vectors.Furthermore,the complexity of the new method increases little as the number of inverter level increases.The experiment on a 400Hz power supply and simulations on computer show that the new algorithm is simple and easy to realize. |
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| Keywords: | inverter pulse width modulation vector control |
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