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| 摘要: |
| 提出了分析整流器谐波产生机制的新方法,可克服传统的电流源注入分析法无法考虑整流器产生的谐波与系统之间的相互影响的缺点.基于调制理论和傅里叶变换理论,在频域中求解整流器的交流侧和直流侧各变量的相互关系,推导发现整流器的交流侧端口电压和端口电流的各次谐波分量可用一谐波耦合导纳矩阵来关联.该谐波导纳矩阵的各元素与整流器交流供电端的谐波电压各分量无关,是独立于系统谐波状况的定常矩阵.该方法将整流器时域的非线性特征转化为频域的线性矩阵,直观地体现了整流器的交流侧电流和电压谐波各分量之间的耦合关系.用所提方法分析整流器产生的谐波不需迭代求解,且具有较高的精度.时域仿真算例结果验证了该方法的有效性和精确度. |
| 关键词: 整流器 谐波分析 谐波源模型 谐波潮流 频域的线性矩阵 |
| DOI： |
| 分类号:TM461 |
| 基金项目:国家留学基金委资助研究生项目? |
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| Harmonic analysis method for converter |
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SUN Yuanyuan1 XU Wilsun1 2
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| Abstract: |
| A method to analyze the harmonics generation mechanism of converters is presented,which takes into account the interaction between the harmonics generated by converter and the power system. Based on the modulation theory and the Fourier analysis theory,the relations among the AC-side and DC-side variables of converter are explored in frequency-domain. It is found that a harmonic coupled admittance matrix can be used to represent the relations between the AC-side harmonic voltage and current of converter,whi... |
| Key words: converter harmonic analysis harmonic source model harmonic power flow frequency-domain linear matrix |
