| 逆变电源谐波分析中频谱泄漏等问题的解决 |
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| 引用本文： | 李立中.逆变电源谐波分析中频谱泄漏等问题的解决[J].机车电传动,2002(3):28-31. |
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| 作者姓名： | 李立中 |
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| 作者单位： | 株洲电力机车研究所株洲时代电机技术有限公司,湖南,株洲,412001 |
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| 摘 要： | 介绍了在逆变电源的PWM调制信号分析中存在的频率混叠，栅栏效应，频谱泄漏等问题，阐述了开发ZPM系列交流传动测试系统时为进行准确的信号分析采用的频率预取技术及零相移数字滤波器软件，用此方法对多种机车进行测试，结果与分析数据完全吻合。
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| 关 键 词： | 逆变电源 谐波分析 PWM波 测试技术 频率混叠 栅栏效应 频谱泄漏 机车 |
| 文章编号： | 1000-128X(2002)03-0028-04 |
| 修稿时间： | 2001年8月6日 |
A solution for problems occurred in harmonic analysis of PWM inverter |
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| LI,Li-zhong.A solution for problems occurred in harmonic analysis of PWM inverter[J].Electric Drive For Locomotive,2002(3):28-31. |
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| Authors: | LI Li-zhong |
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| Abstract: | The problems of frequency aliasing, stockade effect and spectral leakage etc. Occurred in harmonic analysis of PWM inverterwaveform are described.The frequency pre-measure technique for accurate signal analysis and the zero phase-shift digital filter softwaredeveloped for the ZPM AC drive testing system are introduced. Testing on various locomotives show the results conform to the analysisdata. |
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| Keywords: | variable frequency power supply PWM wave measure technique harmonic analysis frequency aliasing stockade effect spectral leakage |
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