| 基于Blackman-Harris相位差校正信号谐波分析方法 |
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| 引用本文： | 刘海升,付志红,张淮清,李胜芳,侯兴哲.基于Blackman-Harris相位差校正信号谐波分析方法[J].数据采集与处理,2011,26(4):468-472. |
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| 作者姓名： | 刘海升 付志红 张淮清 李胜芳 侯兴哲 |
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| 作者单位： | 1. 重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆,400044
2. 重庆电力科学试验研究院,重庆,401123 |
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| 基金项目： | 国家重点实验室自主研究(2007DA10512709209)资助项目; 重庆大学“211工程”三期创新人才培养计划(S-09111)建设项目 |
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| 摘 要： | 运用快速傅里叶变换(FFT)进行电力谐波分析时很难做到同步采样和整周期截断,造成的频谱泄漏将影响谐波分析精度.本文引入Blackman-Harris窗函数,分析其时域和频域特性,采用Blackman-Harris窗对谐波信号进行加权,结合相位差校正原理,用于谐波分析.推导了信号基波及各次谐波频率、幅值和初相角的计算式,...
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| 关 键 词： | 电能计量 谐波分析 频谱泄漏 相位差校正 布莱克曼-哈里斯窗 |
Harmonic Analysis Based on Blackman-Harris Window and Phase Difference Correction |
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| Liu Haisheng,Fu Zhihong,Zhang Huaiqing,Li Shengfang,Hou Xingzhe.Harmonic Analysis Based on Blackman-Harris Window and Phase Difference Correction[J].Journal of Data Acquisition & Processing,2011,26(4):468-472. |
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| Authors: | Liu Haisheng Fu Zhihong Zhang Huaiqing Li Shengfang Hou Xingzhe |
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| Affiliation: | Liu Haisheng1,Fu Zhihong1,Zhang Huaiqing1,Li Shengfang2,Hou Xingzhe2(1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing,400044,China,2.Electric Power Experimental Research Institute of Chongqing,401123,China) |
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| Abstract: | It is difficult to perform synchronized sampling and integral period truncation in the harmonic analysis of power system with the fast Fourier transform(FFT) technique.However,without the satisfaction of both these conditions,the acccracy can be influenced by the frequent leakage.Therefore,the BlackmanHarris window function is introduced to analyze the characteristics of time and frequency domains.Harmonic signals are weighteed by the Blackman-Harris window,and analyzed by combining the principles of phase ... |
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| Keywords: | power measurement harmonic analysis spetral leakage phase difference correction Blackman-Harris window |
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