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| Harmonic Analysis based on Five-Term Rife-Vincent Windows and Triple-Spectral-Line Interpolation FFT |
| Zhu Junwei1,2 Li Tianyou 3 Cai Jinding 1 Lin yan 4 |
1. College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350002;
2. Technology Center of Grid State Fujian Electric Power Co., Ltd, Fuzhou 350007;
3. Grid State Fujian Electric Power Co., Ltd, Fuzhou 350001;
4. Electric Power Research institute of Grid State Fujian Electric Co., Ltd, Fuzhou 350007 |
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Abstract Fast Fourier transform (FFT) is the most widely used power harmonic analysis algorithm. However FFT could not get accurate results in the case of non-synchronous sampling and non-integer period truncation. In order to reduce the impact of non-synchronous to FFT, choose the five-term Rife-Vincent (I) windows, which has the great side lobe performance, and interpolation FFT to detect power harmonic signals. Derive a simple and practical correction formula of triple-spectral-line interpolation by using the polynomial fitting algorithm. The simulation results have verified that the algorithm has a better precision and practical value than other common windows and interpolated FFT algorithm in non-synchronous sampling.
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Received: 20 April 2015
Published: 23 March 2015
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| Cite this article: |
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Zhu Junwei Li Tianyou Cai Jinding1 Lin yan. Harmonic Analysis based on Five-Term Rife-Vincent Windows and Triple-Spectral-Line Interpolation FFT[J]. Electrical Engineering, 2015, 16(03): 34-39.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2015/V16/I03/34
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2015, Vol. 16 
