| 三相电压型整流器的LCL型滤波器分析与设计 |
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| 引用本文： | 张宪平,李亚西,潘磊,赵斌,许洪华.三相电压型整流器的LCL型滤波器分析与设计[J].电气应用,2007,26(5):65-68. |
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| 作者姓名： | 张宪平 李亚西 潘磊 赵斌 许洪华 |
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| 作者单位： | 1. 中国科学院电工研究所,100080;中国科学院研究生院,100080
2. 中国科学院电工研究所,100080 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 提出了一种LCL型滤波器的新型设计方法,利用电流的纹波限制,求出了滤波器的总电感值.滤波电容使电感分为两个不对称的电感,利用电容吸收的无功功率得到了滤波电容器的值.以谐振频率这个重要参数作为中间变量,得出了关于两个不对称电感比例的二次方程,通过对方程的求解,可很容易得到滤波器的电感参数.对样例滤波器的设计过程进行了详细介绍,系统的仿真结果也证明了文中提出的设计方法是可行的.
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| 关 键 词： | PWM整流器 LCL滤波器 谐振频率 阻尼电阻 谐波畸变率 |
| 修稿时间： | 2006年9月7日 |
Analysis and Design of LCL Type Filter for Three-Phase Voltage Source Rectifier |
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| Zhang Xianping.Analysis and Design of LCL Type Filter for Three-Phase Voltage Source Rectifier[J].Electrotechnical Application,2007,26(5):65-68. |
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| Authors: | Zhang Xianping |
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| Affiliation: | Institute of Electrical Engineering Chinese Academy of Sciences |
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| Abstract: | It is very effective for LCL type filter to attenuate high order harmonics of PWM rectifier, which makes it suitable for higher power applications. Hower, LCL filter design is complex and needs to consider many constraints. This paper proposes a novel method for LCL filter design, which makes the task very convenient. The total inductance should be determined according to current ripple constraint. Total inductance is split into two unsymmetrical parts with filter capacitor insertion. Filter capacitor can be obtained with reactive power constraints. A second order equation on ratio of two inductance is deduced with resonance frequency as a middle variable. Parameters of two inductance will be gotten with second order equation.A step by step design procedure is described as a design example,which is verified by result of simulation. |
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| Keywords: | PWM rectifier LCL filter resonance frequency damping resistor total harmonic distortion |
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