تصفح حسب المؤلف "El-Hawary, M.E."
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A Demodulation Technique For Power System Local Frequency And Voltage Measurements
Soliman, S.A.; Alammari, R. A.; Al-Kandari, M. A.; El-Hawary, M. E. ( Qatar University , 2003 , Article)The demodulation technique of two complex signals is used to estimate the power system local frequency and voltage phasor. The first complex signal is generated from the three-phase voltage waveform by using the ... -
Fuzzy time domain and Z-transform for modeling of harmonic electric loads
El-Hawary, M.E.; Soliman, S.A.; Temraz, H.K. ( IEEE , 2001 , Conference Paper)This paper demonstrates the application of fuzzy systems and Z-transform for electric load modeling in the presence and/or absence of harmonics. The problem is formulated as one of linear optimization, where the objective ... -
Long-term electric peak load forecasting for power system planning: A comparative study
Soliman, S.A.; Alammari, R.A.; El-Hawary, M.E.; Temraz, H.K. ( King Fahd University of Petroleum and Minerals , 2004 , Article)A comparative study between two static estimation algorithms, namely least error squares (LES) and least absolute value (LAV) algorithm was presented. The proposed algorithm used the past history data for the load and the ... -
New Heuristic Strategies for Reactive Power Compensation of Radial Distribution Feeders
Mekhamer, S. F.; El-Hawary, M. E.; Soliman, S. A.; Moustafa, M. A.; Mansour, M. M. ( IEEE , 2002 , Article)In this paper, the authors introduce two new heuristic techniques for reactive power compensation in radial distribution feeders. The methods can be considered as generalization ideas that emerged from recent heuristic ... -
Power system frequency estimation based on simulated annealing. Part I: A constant frequency study
Mantawy, A.H.; Soliman, S.A.; El-Hawary, M.E. ( King Fahd University of Petroleum and Minerals , 2003 , Article)In this paper a new algorithm based on Simulated Annealing (SA) method is used to estimate the signal parameters of a system steady power system, having a constant frequency during data window size. The proposed algorithm ...