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改进的间谐波分析法――加窗插值MUSIC法

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Keywords: 间谐波,频率分辨率,加窗插值,MUSIC算法

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Abstract:

邻近谐波或基波的间谐波,是导致电压闪变的直接原因,准确检出该成分,对于改善电能质量具有重要意义.针对真实电网宽带多频的信号特性,提出了一种改进的间谐波分析法―加窗插值MUSIC法,该方法克服了加窗插值和MUSIC算法的局限.Matlab仿真表明加窗插值MUSIC法频率分辨率和精度优于加窗插值,相对传统求根MUSIC不需要估算信号个数,能有效消除伪谱的影响.

References

[1]  Li C,Xu W,Tayjasanant T. Interharmonics: Basic concepts and techniques for their detection and measurement[J]. Elect Power Syst Res,2003, 66: 39-48.
[2]  Harris F J. On the use of windows for harmonic analysis with the discrete Fourier transform[J]. Proc IEEE,1978,66: 51-83.
[3]  王柏林. 随机环境下电力系统谐波分析算法[J]. 电力系统自动化, 2008, 32( 3) : 22-25. Wang Bolin. Algorithms for harmonic analysis of power systems under stochastic condition[J]. Automation of Electric Power Systems,2008, 32( 3) : 22-25. ( in Chinese)
[4]  王柏林. 频谱小偏差校正新方法[J]. 电力系统自动化, 2005, 29( 20) : 46-49. Wang Bolin. Novel small synchronous error correction method in spectrum analysis[J]. Automation of Electric Power Systems, 2005, 29( 20) : 46-49. ( in Chinese)
[5]  Hao Q,Rongxiang Z,Tong C. Interharmonics analysis based on interpolating windowed FFT algorithm[J]. IEEE Transactions on Power Delivery, 2007, 22( 2) : 1 064-1 069.
[6]  Liu Z,Himmel J,K W Bong. Improved processing of harmonics and interharmonics by time-domain averaging[J]. IEEE Transactions on Power Delivery, 2005, 20( 4) : 2 370-2 380.
[7]  Gallo D,Langella R,Testa A. Desynchronized processing technique for harmonic and interharmonic analysis[J]. IEEE Transactions on Power Delivery, 2004, 19( 3) : 993-1 001.
[8]  Bracale A,Carpinelli G,Zbigniew Leonowicz. Measurement of IEC groups and subgroups using advanced spectrum estimation methods[J]. IEEE Trans Instrum Meas,2008, 57: 672-681.
[9]  丁屹峰,程浩忠. 基于Prony 算法的谐波和间谐波频谱估计[J]. 电工技术学报, 2005, 20( 10) : 94-97. Ding Yifeng,Cheng Haozhong. Spectrum estimation of harmonics and interharmonics based on prony algorithm[J]. Transactions of China Electro Technical Society, 2005, 20( 10) : 94-97. ( in Chinese)
[10]  田伟,王洪希,白晶. 基于互高阶谱MUSIC 法的间谐波检测[J]. 电力系统保护与控制, 2007, 35( 22) : 49-52. Tian Wei,Wang Hongxi,Bai Jing. Inter-harmonics parameter estimation on crosshigh-spectrum based on music method[J]. Power System Protection and Control, 2007, 35( 22) : 49-52. ( in Chinese)
[11]  Bracale A,Caramia P,Carpinelli G. Adaptive prony method for waveform distortion detection in power systems[J]. Electrical Power and Energy System,2007,29: 371-379.

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