| 一种高性能的谐波检测数字低通滤波器 |
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| 引用本文： | 邝乃兴,钱照明,童立青,宋延涛,彭方正.一种高性能的谐波检测数字低通滤波器[J].电力系统自动化,2006,30(20):0-0. |
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| 作者姓名： | 邝乃兴 钱照明 童立青 宋延涛 彭方正 |
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| 作者单位： | 浙江大学电气工程学院,浙江省,杭州市,310027;浙江大学电气工程学院,浙江省,杭州市,310027;浙江大学电气工程学院,浙江省,杭州市,310027;浙江大学电气工程学院,浙江省,杭州市,310027;浙江大学电气工程学院,浙江省,杭州市,310027 |
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| 摘 要： | 谐波检测的准确性和实时性是影响有源电力滤波器的重要因素.文中采用指数平均低通滤波器,并利用级联技术,解决了数字信号处理器有限字长与谐波提取的准确性和实时性之间的矛盾.将其用于串联混合型有源电力滤波器中,实现了高性能的谐波检测.实验结果证明了所提出的理论的正确性.
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| 关 键 词： | 有源电力滤波器 谐波检测 级联 有限字长效应 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
A High Performance Digital Low Pass Filter for Harmonic Detection |
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| KUANG Naixing,QIAN Zhaoming,TONG Liqing,SONG Yantao,PENG Fangzheng.A High Performance Digital Low Pass Filter for Harmonic Detection[J].Automation of Electric Power Systems,2006,30(20):0-0. |
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| Authors: | KUANG Naixing QIAN Zhaoming TONG Liqing SONG Yantao PENG Fangzheng |
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| Affiliation: | Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Veracity and real-time requirements for the harmonic detection are the most important factors to influence the active power filter. This paper adopts an exponential average low pass filter and a cascade form to effectively solve the conflict between the veracity of harmonic detection and real-time requirements and the finite word length of DSP design. A DSP based digital low pass filter is then presented for high performance harmonic detection in a series hybrid active power filter. The experiment results validate the theoretical analysis. |
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| Keywords: | active power filter (APF) harmonic detection cascade finite word length effects |
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