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标题：多种空间矢量调制方法的谐波分析 |
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作者：刘小俊，邓 歆，张广明 |
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| 2016年第4期 访问次数：228次 |
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摘要：以三相电压型逆变器为研究对象，介绍了多种空间矢量调制方法。该方法易于数字化，避免繁琐的计算。本文通过一种在标准正弦波的基础上，注入零序分量来统一给出这些调制方法。逆变器在这些调制方法下的输出电压中包含各次谐波。本文在谐波磁通的基础上对其深入分析。得出谐波磁通和各影响参数之间的关系，并找出最小谐波磁通的方法。最后给出了输出电压的频谱图，验证了分析结论。
关键词：脉宽调制；统一化；零序分量；谐波磁通；频谱
Abstract: Based on the threephase voltage type inverter as the research object,introduced multiple space vector modulation method.This method is easy to be digitalized and avoids the complicated calculation.In this paper,based on a standard sine wave,through injecting zero sequence components to provide these modulation method.The output voltage of the inverter using these modulation methods contains harmonic.In this paper,further analysis this based on the harmonic flux,earned the relationship between the harmonic flux and the influence factors,found the lowest harmonic flux method.Finally,the spectrum of the output voltage was given to verify the analysis results.
Key words: pulse width modulation; unification; zero sequence; harmonic flux; spectrum |
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