Browse > Article
http://dx.doi.org/10.5370/KIEE.2015.64.1.149

Harmonic and Interhamonic Detection and Estimation of Power Signal using Subband MUSIC/ESPRIT  

Choi, Hun (Dept. of Electronics Eng., Dongeui Univ.)
Bae, Hyeon-Deok (School of Electrical Eng., Chungbuk National Univ.)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.64, no.1, 2015 , pp. 149-158 More about this Journal
Abstract
This paper proposes a subband filtering technique to the MUSIC and the ESPRIT algorithm for estimating the magnitude and frequency of the harmonics of power signal. In proposed method, the input power signal is decomposed to the odd harmonics and the even harmonics respectively by the filter bank system. The amplitude and the frequency estimation of the decomposed harmonics are carried out using the MUSIC and the ESPRIT method. Subband filtering can reduce the autocorrelation matrix size of input data, and spectrum leakage between adjacent harmonics. Therefore, this subband technique has advantage in computational cost and estimation accuracy compared to fullband MUSIC and ESPRIT. To demonstrate the performance of the method, computer simulations are performed to the synthesized input signal, and experiment results are compared in subband and fullband cases.
Keywords
Power quality; Harmonic and interharmonic; Filter bank; MUSIC; ESPRIT;
Citations & Related Records
연도 인용수 순위
  • Reference
1 P.P. Vaidyanathan, Multirate Systems and Filter Banks, Englewood cliffs, NJ.:PH, 1993.
2 J. Barros and R. I. Diego, “Analysis of Harmonics in Power Systems Using the Wavelet-Packet Transform,” IEEE Trans. on Instrumentation and Measurement, vol.57, no. 1, pp. 63-69, Jan. 2008.   DOI   ScienceOn
3 Sang-Wook Sohn, Hun Choi, and Hyeon-Deok Bae, “Detection and Tracking of Time Varying Power System Frequencies and Harmonics using Subband Adaptive Filtering,” The Trans. on the KIEE, vol.58, no.1, pp. 679-687, April 2009.
4 Jae-Jun Yun, Young-Bin Lim, Jeong-Kyu Lee, Sang-Wook Sohn, and Hyeon-Deok Bae, “A Subband MUSIC/ESPRIT Technique for Estimating Harmonics in Power Signals,” Proceedings of I2MTC 2011, pp.543-547, May 2011.
5 IEEE Std. 1159-1995, “IEEE Recommended Practice for Monitoring Electric Power Quality,” Jun. 1995.
6 M.H.J Bollen, and Irene Y. H. Gu, Signal Processing of Power Quality Disturbances, Hoboken, NJ.: Wiley-Interscience, 2006.
7 M.H.J Bollen, and Irene Y. H. Gu, “Bridging the Gap between Signal and Power,” IEEE Signal Processing Magazine, vol.26, no.4, pp. 12-31, July 2009.   DOI