Abstract
Harmonic pollution has been a key issue affecting the safe operation of power system. But the traditional harmonic analysis methods are easy to be affected by the environmental factors. In order to reduce the impact of these disturbances, a novel harmonic analysis method based on center frequency shift is presented. The harmonic spectral lines located at the half frequency points is need for frequency shift in time domain. However, to considering the harmonic spectral lines after frequency shift will not be just in the ideal position, an offset factor is proposed for modifying the position of the harmonic spectral lines. At the same time, the corresponding formulas to estimate the magnitude, phase angle and frequency are deduced. The simulation results show that the FFT harmonic parameter estimation algorithm based on center frequency shift is effective. The parameters of harmonic signals can be accurately estimated by the algorithm. And the interference factors can also be suppressed.
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References
M. Qasim and V. Khadkikar, Application of artificial neural networks for shunt APF control. IEEE Trans. Ind. Inform., 61 (2014) 3857-3866.
S.R. Gupta, Calibration & measurement facilities for AC high current & high voltage ratio standards at NPL. MAPAN-J. Metrol. Soc. India, 24 (2009) 29-39.
S. Shukla, S. Mishra and B. Singh, Power quality event classification under noisy conditions using EMD-based de-noising techniques, IEEE Trans. Instrum. Meas., 10 (2014) 1044-1054.
Z. Li, S. Yan, W. Hu, et al. High accuracy on-line calibration system for current transformers based on clamp-shape rogowski coil and improved digital integrator. MAPAN-J. Metrol. Soc. India, 31(2016) 119–127.
M. Liu and K.Y. Wang, A Harmonic analysis method based on fast fourier transform and minimal error principle. Power Syst. Technol., 30 (2006) 76-79.
H. Pang, D.X. Li, Y.X. Zu and Z.J. Wang. An improved algorithm for harmonic analysis of power system using FFT technique. Proc. CSEE, 23 (2003) 50-54.
B. Zeng and Z.S. Teng, Improved FFT approach for the dynamic state estimation of harmonic parameters based on the Nuttall window. Proc. CSEE, 30 (2010) 65-71.
Z.H. Li, H.B. Li, Z. Zhang, P.D. Luo, An online calibration method for electronic voltage transformers based on IEC 61850-9-2. MAPAN-J. Metrol. Soc. India, 29 (2014) 97-105.
H. Wen, et al., Harmonic estimation using symmetrical interpolation FFT based on triangular self-convolution window. IEEE Trans. Ind. Inform., 11 (2015) 16-26.
S.S. Niu, Z.R. Liang, J.H. Zhang, H.F. Su and H.F. Sun, An algorithm for electrical harmonic analysis based on triple-spectrum-line interpolation FFT. Proc. CSEE, 32 (2012) 130-136.
S.S. Niu, Z.R. Liang, J.H. Zhang and H.F. Su, Harmonic detection approach based on 4-term cosine window triple-spectrum-line interpolation FFT. Chin. J. Sci. Instrum., 33 (2012) 2002-2008.
D.C. Rife and G.A. Vincent, Use of the discrete fourier transform in the measurement of frequencies and levels of tones. Bell Syst. Tech. J., 49 (1970) 197-228.
H.J. Sun and G.Q. Xu, Modified Rife frequency estimation algorithm based on phase criterion for vortex signal processing. Chin. J. Sci. Instrum., 34 (2013) 2860-2866.
W.D. Yu, Y.Q. Tu, Q.D. Zhan and Y.L. Shen, Ranging method of LFMCW radar based on improved Rife algorithm and its implementation. J. Electron. Meas. Instrum., 29 (2015) 550-557.
H.W. Wang and G.Q. Zhao, Improved Rife algorithm for frequency estimation of sinusoid wave. Signal Process., 26 (2010), 1573-1576.
H. Wen, Study on new windows and improved FFT-based harmonic analysis methods and applications; Hunan University, Changsha, (2009).
X.Y. Xiao, N. Wang and Y.M. Liu, Application of polynomial approximation based single peak spectral lines interpolation algorithm in interharmonic analysis. Power Syst. Technol., 32 (2008) 57-61.
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This work was supported by The Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry (Grant No. KJ2015QT007).
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Xu, Yc., Liu, Yl., Li, Zx. et al. Harmonic Estimation Base on Center Frequency Shift Algorithm. MAPAN 32, 43–50 (2017). https://doi.org/10.1007/s12647-016-0196-y
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DOI: https://doi.org/10.1007/s12647-016-0196-y