| APF中数字低通滤波器的设计及仿真实现 |
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| 引用本文： | 贾红芳,占志峰. APF中数字低通滤波器的设计及仿真实现[J]. 变频器世界, 2009, 0(6): 53-56 |
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| 作者姓名： | 贾红芳 占志峰 |
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| 作者单位： | [1]湛江师范学院信息科学与技术学院电子系 [2]广东电网公司湛江供电局变电部 |
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| 摘 要： | 本文介绍了基于瞬时无功功率理论的ip-iq谐波检测方法及对低通滤波器的要求，分析了数字低通滤波器的类型、阶数及截止频率对有源电力滤波器谐波检测效果的影响。利用MATLAB仿真软件设计了二阶巴特沃思（Butterworth）数字低通滤波器，对ip-iq谐波检测算法进行了仿真研究，仿真结果证明所选择的数字低通滤波器正确性。
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| 关 键 词： | 有源电力滤波器 瞬时无功功率理论 巴特沃思数字低通滤波器 |
Design of Digital Low Pass Filter in APF and its Implementation by Simulink Modeling |
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| Jia Hongtang Zhan Zhi feng. Design of Digital Low Pass Filter in APF and its Implementation by Simulink Modeling[J]. THE WORLD OF INVERTERS, 2009, 0(6): 53-56 |
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| Authors: | Jia Hongtang Zhan Zhi feng |
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| Affiliation: | Jia Hongfang ,Zhan Zhi feng |
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| Abstract: | The i_p-i_q harmonic detection method based on the instantaneous reactive power theory and the requirements of the low pass filter(LPF) in this algorithm are introduced.The effects of type,order and cut-off frequency of LPF are analyzed.The second-order Butterworth digital low pass filter is designed with the MATLAB software. The experiment results verify the efficiency of the digital low pass filter and the correctness of simulation. |
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| Keywords: | Active power filter Instantaneous reactive power theory Butterworth digital low pass filter |
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