| 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].通信电源技术,2009,26(2):29-31. |
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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,广东,湛江,524048
2. 广东电网公司湛江供电局变电部,广东,湛江,524000 |
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| 摘 要： | 文中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（Butter—worth）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的正确性。
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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 Using Simulink Modeling |
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| JIA Hong-fang,ZHAN Zhi-feng.Design of Digital Low Pass Filter in APF and Its Implementation Using Simulink Modeling[J].Telecom Power Technologies,2009,26(2):29-31. |
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| Authors: | JIA Hong-fang ZHAN Zhi-feng |
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| Institution: | JIA Hong-fang, ZHAN Zhi-feng (1. School of Information Science and Technology, Zhanjiang Normal College, Zhanjiang 524048, China 2. Zhanjiang Power Supply Bureau , Guangdong Power Grid Corporation, Zhanjiang 524001, China) |
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| Abstract: | In this paper, The ip-iq harmonic detection method based on instantaneous reactive power theory and the requirements of low pass filter （LPF） are introduced. The influence of LPF type, order and cut-off frequency on the active power filter harmonic detection are analyzed. The second-order Butterworth digital low pass filter is designed with MAT- LAB software and ip-iq harmonic detection algorithm is simulated. The simulation results verify the efficiency of the digital low pass filter. |
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| Keywords: | active power filter instantaneous reactive power theory Butterworth digital low pass filter |
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