| 一种加Blackman-Harris窗的电网谐波检测方法 |
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| 引用本文： | 周爱华.一种加Blackman-Harris窗的电网谐波检测方法[J].电子测试,2017(6). |
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| 作者姓名： | 周爱华 |
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| 作者单位： | 哈尔滨理工大学,黑龙江 哈尔滨,150000 |
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| 摘 要： | 传统的电网谐波分析方法存在很大的误差,而加窗插值算法能够很好的克服传统检测方法存在的缺点,提高电网谐波的加测精度.由于Blackman-Harris窗函数能够有效地抑制频谱分析长范围的泄露,本文采用三次样条插值修正的原理,推导了基于Blackman-Harris窗函数的三系样条插值修正公式,并利用MATLAB软件对该算法进行仿真.
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| 关 键 词： | 谐波分析 频谱泄露 插值快速傅里叶变换 三次样条函数 |
Power grid harmonic detection method with Blackman-Harris window |
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| Zhou Aihua.Power grid harmonic detection method with Blackman-Harris window[J].Electronic Test,2017(6). |
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| Authors: | Zhou Aihua |
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| Abstract: | the traditional method of harmonic analysis of power grid has a large error, and the windowed interpolation algorithm can overcome the shortcomings of traditional detection methods, and improve the accuracy of harmonic measurement. Because the Blackman-Harris window function can effectively suppress the leakage spectrum analysis of long range used in this paper, three spline interpolation correction principle, the correction formula of three kind of Blackman-Harris window function interpolation has been deduced, and the simulation of the algorithm by using MATLAB software. |
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| Keywords: | harmonic analysis spectrum leakage fast Fourier transform three spline function |
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