Interharmonics analysis of power signals with fundamental frequency deviation using Kalman filtering

Date

2010-09-01

Author

Köse, Neslihan
Salor, Oezguel
Leblebicioğlu, Mehmet Kemal

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In this paper a spectral decomposition-based method for interharmonic computation is proposed for power systems where the fundamental frequency fluctuates significantly. In the proposed method, the frequency domain components of the voltage waveform are obtained by Kalman filtering. Both the system fundamental frequency and the correct spectrum of the voltage waveform, and hence the exact interharrnonics are obtained. The proposed method is tested with both simulated and field data obtained from different electric arc furnace (EAF) plants, where the system frequency deviates continuously due to the fluctuating load demands. Since the interharmonic frequencies are obtained by using Kalman filtering, no leakage effect of the OFT-based methods is involved in case of frequency deviations, which is an important advantage of the proposed method.

Subject Keywords

Electric arc furnace (EAF), Power quality (PQ), Kalman filter (KF), Frequency deviation, Interharmonics, Harmonics

URI

https://hdl.handle.net/11511/32972

Journal

ELECTRIC POWER SYSTEMS RESEARCH

DOI

https://doi.org/10.1016/j.epsr.2010.03.006

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

N. Köse, O. Salor, and M. K. Leblebicioğlu, “Interharmonics analysis of power signals with fundamental frequency deviation using Kalman filtering,” ELECTRIC POWER SYSTEMS RESEARCH, pp. 1145–1153, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32972.