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| 摘要: |
| 对基于电力电子开关的三次谐波注入滤波方法的原理进行了详细的理论分析，它的基本原理是三相整流固有的三次谐波注入到交流输入端，抵消电流中所含有的大部分谐波分量，推导出三次谐波注入法的最佳注入条件，给出滤波电路的结构。通过模拟试验证明，三相整流电路交流侧电流中的谐波含量由原来的30％左右下降到10％左右，滤波效果明显。 |
| 关键词: 电力电子开关 三相整流电路 谐波注入滤波方法 模拟试验 电力系统 电网 谐波污染 |
| DOI： |
| 分类号:TM461 TM711 |
| 基金项目: |
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| A method of harmonic current injection in three-phase rectifier based on power electronic switch |
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CHEN Xiao-guo CHEN Bai-chao
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| Abstract: |
| The principle of harmonic current injection based on power electronic switch is ana-lyzed theoretically in detail.The inherent third harmonic current is injected to the AC side to counteract most of the harmonic currents of the rectifier.Conditions for the optimal third harmonic current injection are derived and the circuit structure is presented.The model experiment shows that the Total Harmonic Distortion(THD)of AC in the three-phase rectification circuit reduced from30%to about 10%. |
| Key words: harmonic current injection,power electronic switch,model experiment, |
