Kalman filtering based approach for light flicker evaluation of power systems

2011-01-01
Kose, N.
Salor, O.
Leblebicioğlu, Mehmet Kemal
In this study, a Kalman filtering based approach is proposed to measure the light flicker of the electricity transmission systems. Analytical expressions of the instantaneous light flicker sensation are used to obtain a flicker estimation method based on the International Electrotechnical Commission (IEC) flickermeter. In the proposed method, the frequency domain components of the voltage waveform are obtained by Kalman filtering and these components are used to obtain the light flicker. The method is tested on both simulated data and field data obtained from three different electrical arc furnace (EAF) plants, where the flicker level is considerably high compared to other types of loads. The comparison of the results with the digital realisation of the IEC flickermeter shows that the method gives satisfactory estimations with low computational complexity. The method is especially useful for conditions such as disturbances and subsequent system transients where the system frequency deviates significantly. Since the frequency decomposition is obtained by using Kalman filtering, no leakage effect of the fast Fourier transform (FFT) method is involved in case of frequency deviations.
IET GENERATION TRANSMISSION & DISTRIBUTION

Suggestions

New spectral decomposition based approach for flicker evaluation of electric arc furnaces
Koese, N.; Salor, Oe. (Institution of Engineering and Technology (IET), 2009-04-01)
A spectral decomposition-based approach is proposed to estimate the light flicker caused by electrical arc furnaces (EAFs) where the system frequency deviates significantly due to the EAF operation. Analytical expressions of the instantaneous light flicker sensation are obtained beginning from a voltage waveform and these expressions are used to obtain a flicker estimation method based on the IEC flickermeter. In the proposed method, the leakage effect of the FFT algorithm due to fundamental frequency varia...
Spectral correction-based method for interharmonics analysis of power signals with fundamental frequency deviation
Salor, Oezguel (Elsevier BV, 2009-07-01)
In this paper, a spectral correction-based algorithm for interharmonic computation is proposed for especially highly fluctuating fundamental frequency cases in the power system. It has been observed and reported that fluctuating demands of some loads such as arc furnaces, or disturbances and subsequent system transients make the fundamental frequency of the power system deviate and this causes non-existing interharmonics to appear in the spectrum due to grid-effect when a standard window length is used for ...
A Kalman Filter Based Approach for Light Flicker Evaluation of Power Systems
Kose, Neslihan; Salor, Ozgul; Leblebicioğlu, Mehmet Kemal (2009-01-01)
In this paper, a Kalman filtering based approach is proposed to measure the light flicker of the electricity transmission systems. Analytical expressions of the instantaneous light flicker sensation are obtained beginning from a voltage waveform and these expressions are used to obtain a flicker estimation method based on the IEC (International Electrotechnical Commission) flickermeter. In the proposed method, the frequency domain components of the waveform are obtained by Kalman filtering and these compone...
Incorporation of generator maintenance scheduling with long-term power sector forecasting and planning studies
Ilseven, Engin; Göl, Murat (Institution of Engineering and Technology (IET), 2020-07-01)
The objective of this study is to propose a dynamic generator maintenance scheduling (GMS) algorithm for long-term power sector forecasting and planning studies in which electricity price and the resulting supply composition are determined with merit-order dispatch. Compatible with the GMS algorithm, a reasonable strategy for the utilisation of storage hydropower plants along with clear definitions for each stage including must-run renewable electricity generation modelling, calculation of reserve capacity,...
Light flicker evaluation of electric arc furnaces based on novel signal processing algorithms
Köse, Neslihan; Leblebicioğlu, Mehmet Kemal; Department of Electrical and Electronics Engineering (2009)
In this research work, two new flickermeters are proposed to estimate the light flicker caused by electric arc furnaces (EAFs) where the system frequency deviates significantly. In these methods, analytical expressions of the instantaneous light flicker sensation are obtained beginning from a voltage waveform and these expressions are used to obtain a flicker estimation method based on the IEC (International Electrotechnical Commission) flickermeter. First method is a spectral decomposition based approach u...
Citation Formats
N. Kose, O. Salor, and M. K. Leblebicioğlu, “Kalman filtering based approach for light flicker evaluation of power systems,” IET GENERATION TRANSMISSION & DISTRIBUTION, pp. 57–69, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46405.