| 并联有源电力滤波器中LCL滤波器的分析与设计 |
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| 引用本文： | 张国荣,李宗钧,陈鹏. 并联有源电力滤波器中LCL滤波器的分析与设计[J]. 高压电器, 2011, 47(6) |
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| 作者姓名： | 张国荣 李宗钧 陈鹏 |
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| 作者单位： | 教育部光伏系统工程研究中心,合肥工业大学能源研究所,合肥230009 |
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| 摘 要： | 并联有源电力滤波器(active power filter,APF)要求较高的补偿带宽和较低的开关纹波含量。LCL滤波器由于可以兼顾低频段增益和高频段的衰减,是APF输出滤波器的较好选择。但LCL滤波器是三阶系统,设计较为复杂且存在谐振点振荡问题。现有的论文主要是通过MATLAB仿真图形分析LCL滤波器的性能,不能给出定量的公式化描述。笔者推导了带阻尼电阻的LCL滤波器的S域传递函数,并将其分解为几个典型系统的组合,利用数学推导详细分析了LCL滤波器中各个参数变化对系统性能的影响,为LCL的参数调整提供了理论依据。仿真和实验结果证明了所提出理论的正确性。
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| 关 键 词： | 并联有源电力滤波器 LCL滤波器参数 传递函数 |
Analysis and Design of LCL-filter in Shunt Active Power Filter |
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| ZHANG Guo-rong,LI Zong-jun,CHEN Peng. Analysis and Design of LCL-filter in Shunt Active Power Filter[J]. High Voltage Apparatus, 2011, 47(6) |
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| Authors: | ZHANG Guo-rong LI Zong-jun CHEN Peng |
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| Abstract: | Shunt active power filter(APF)needs wide compensation range and few switching harmonic components. LCL-filter is suitable for APF because of it's good characteristics of amplification in low frequency and attenuation in high frequency.However,LCL-filter is a three-order system causing complex design and oscillation problem at resonance frequency.Present studies analyze the LCL-filter mainly by simulations via MATLAB without giving formulation.This paper deduces a transfer function in S domain of LCL filter with damping resistances,and decomposes the function into several typical systems to analyze the influence of each parameter variation of LCL-filter on the performance of system.Simulation and experiment validate the correctness of the proposed method. |
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| Keywords: | shunt active power filter LCL-filter parameter transfer function |
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