| 基于Blackman窗函数的插值FFT在电网谐波信号分析中的应用 |
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| 引用本文： | 周俊,王小海,祁才君.基于Blackman窗函数的插值FFT在电网谐波信号分析中的应用[J].浙江大学学报(理学版),2006,33(6):650-653. |
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| 作者姓名： | 周俊 王小海 祁才君 |
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| 作者单位： | 浙江大学,电气工程学院,浙江,杭州,310027 |
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| 摘 要： | 对插值快速傅里叶变换（FFT）算法在电网谐波参数估计的研究表明：窗函数的类型和宽度是影响插值FFT算法分析精度的主要原因．通过对常用窗函数和电网信号的分析，Blaekman窗适合分析电网信号，同时给出了基于Blackman窗的插值FFT算法．仿真结果表明，基于Blackman窗的插值FFT算法对电网谐波幅值、频率和相位的估计精度都达到了电能质量的国家标准．
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| 关 键 词： | 谐波分析 加窗插值FFT 电能质量 国家标准 |
| 文章编号： | 1008-9497（2006）06-650-04 |
| 收稿时间： | 2005-05-26 |
| 修稿时间： | 2005年5月26日 |
Estimation of electrical harmonic parameters by using the Interpolated FFT algorithm based on Blackman window |
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| ZHOU Jun,WANG Xiao-hai,QI Cai-jun.Estimation of electrical harmonic parameters by using the Interpolated FFT algorithm based on Blackman window[J].Journal of Zhejiang University(Sciences Edition),2006,33(6):650-653. |
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| Authors: | ZHOU Jun WANG Xiao-hai QI Cai-jun |
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| Institution: | College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | A thorough research on the high-accuracy estimation for the electrical harmonic parameters by using the Interpolated FFT algorithm was conducted.The window type and width are the main factors influencing the analysis precision.After analyzing the common windows and electrical signals,the Blackman window was more suitable for the analysis of electrical signals and the Interpolated FFT algorithm was given as well.Simulation result showed that given the Interpolated FFT algorithm based on Blackman window,the estimation precision of electrical signals' frequencies,amplitudes and phases met the state standard. |
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| Keywords: | harmonic analysis Interpolated FFT algorithm based window power quality state standard |
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