| 消除偶次谐波的三电平SVPWM调制方法及其实现 |
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| 引用本文： | 张健,郑宏,陈灵奎,丁艳华.消除偶次谐波的三电平SVPWM调制方法及其实现[J].电测与仪表,2009,46(11). |
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| 作者姓名： | 张健 郑宏 陈灵奎 丁艳华 |
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| 作者单位： | 江苏大学,电气信息工程学院,江苏,镇江,212013 |
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| 基金项目： | 江苏省科技攻关计划，江苏省研究生培养创新工程 |
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| 摘 要： | 传统SVPWM方法所产生的电压谐波既有偶次分量又有奇次分量,本文分析了偶次谐波的产生机制与原因,提出了以A型开关顺序与B型开关顺序相互配合的消除偶次谐波的改进型开关顺序方案.中点电位不平衡是三电平逆变器的-个固有问题.本文对此进行了详细探讨,并提出了一种基于中点电流方向和直流侧电容电压的中点电位平衡控制方法.该方法通过调整平衡控制因子以达到较准确地控制中点电位的平衡.仿真分析验证了本文所提出的控制算法的正确性和有效性.
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| 关 键 词： | 三电平逆变器 偶次谐波 中点电位平衡 |
A SVPWM Strategy and its Implementation Considering Eliminating Even Order Harmonics for Three-level Inverter |
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| ZHANG Jian,ZHENG Hong,CHEN Ling-kui,DING Yan-hua.A SVPWM Strategy and its Implementation Considering Eliminating Even Order Harmonics for Three-level Inverter[J].Electrical Measurement & Instrumentation,2009,46(11). |
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| Authors: | ZHANG Jian ZHENG Hong CHEN Ling-kui DING Yan-hua |
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| Affiliation: | ZHANG Jian,ZHENG Hong,CHEN Ling-kui,DING Yan-hua (Jiangsu University,Zhenjiang212013,Jiangsu,China) |
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| Abstract: | The output voltage of traditional SVPWMincludes even order harmonics and odd order harmonics. This paper proposes a improved SVPWM using A-switching order and B-switching order alternately to eliminate even order harmonics,based on the reasons of causing even order harmonics. Neutral-point potential unbalance is an inherent problem of Neutral-point-clamped Three-level inverter.A detailed discussion of Neutral-point balancing is presented. And then,a simplified control method which uses a balance control fac... |
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| Keywords: | SVPWM |
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