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Estimation of harmonic voltages using independent component analysis

Publication Type : Conference Paper

Publisher : IET Conference Publications

Source : IET Conference Publications, Volume 2011, Number 583 CP, Chennai, p.218-222 (2011)

Url :

ISBN : 9789380430003

Keywords : Algorithms, Arc furnaces, Bus systems, Conventional independent component analysis, Electric arc furnace, Electric arcs, Electric furnace process, Electric furnaces, energy conservation, FastICA, Finite samples, Furnaces, Harmonic analysis, Harmonic voltages, ICA algorithms, Independent component analysis, Independent components, Intelligent systems, JADE, Nonlinear load, PWM inverter, Sampling, Silicate minerals, Voltage harmonics

Campus : Coimbatore

School : School of Engineering

Department : Electrical and Electronics

Year : 2011

Abstract : Non-linear loads like the electric arc furnace and PWM inverters generate voltage harmonics on a large scale. Arc Furnaces generate even order harmonics and certain odd order harmonics not commonly present in other loads. Under such a situation application of conventional Independent Component Analysis (ICA) methods is not possible. So, certain modifications have to be incorporated to the existing ICA methods. Modified FastICA and JADE are the two ICA algorithms considered in this paper. Efficient Variant ICA (EFICA) has better accuracy than FICA in the presence of finite samples, but it is not attempted in this paper as performance is given more importance than accuracy. A simple five bus system with the electric arc furnace and the PWM inverter is investigated by applying the modified JADE and Fast ICA algorithms. The simulation results of the work point a compromise between accuracy and performance. This arises as the FastICA (or EFICA) collapse when only one independent component exists.

Cite this Research Publication : Supriya P. and T. N. Padmanabha Nambiar, “Estimation of harmonic voltages using independent component analysis”, in IET Conference Publications, Chennai, 2011, vol. 2011, pp. 218-222.

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