| 基于PWM逆变器的LC滤波器 |
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| 引用本文： | 俞杨威,金天均,谢文涛,吕征宇.基于PWM逆变器的LC滤波器[J].机电工程,2007,24(5):50-52. |
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| 作者姓名： | 俞杨威 金天均 谢文涛 吕征宇 |
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| 作者单位： | 浙江大学,电力电子研究所,浙江,杭州,310027 |
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| 摘 要： | 为了使脉宽调制（PwM）逆变器具有较好的输出波形，针对PWM逆变器谐波次数较高的特点，采用二阶LC低通滤波网络。从逆变器无功容量最小的角度，介绍了一种单相电压型PWM逆变器LC滤波器的设计方法，该方法综合考虑了滤波器的频率特性、功率因数等要素，根据该方法选择LC参数，可以优化滤波器性能。
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| 关 键 词： | 脉宽调制 逆变器 LC滤波器 无功容量 |
| 文章编号： | 1001-4551(2007)05-0050-03 |
| 修稿时间： | 2006-12-27 |
LC filter based on PWM inverter |
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| YU Yang-wei,JIN Tian-jun,XIE Wen-tao,LV Zheng-yu.LC filter based on PWM inverter[J].Mechanical & Electrical Engineering Magazine,2007,24(5):50-52. |
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| Authors: | YU Yang-wei JIN Tian-jun XIE Wen-tao LV Zheng-yu |
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| Affiliation: | Institute of Power Electronics, Zhefiang University, Hangzhou 310027, China |
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| Abstract: | The orders of the harmonics of PWM inverter's output voltage are very high.Two orders LC lower-pass filter net was used to get better sinusoidal output waveform.A designed approach of filter for single-phase voltage-source PWM inverter based on the minimum reactive capacity of filter was proposed.This approach considers multi-element such as frequency characteristic,power factor,etc.The performance of the filter would be optimized if the parameters of LC are choosed by the approach presented. |
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| Keywords: | pulse-width module(PWM) inverter LC filter reactive capacity |
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