Export 4 results:
Sort by: Author [ Title  (Asc)] Type Year
A B C D E F G H I J K L M N O P Q R [S] T U V W X Y Z   [Show ALL]
Shafei, M. A. R., Y. A. Anwar, and D. K. Ibrahim, "Sharm El-Sheikh 5 MW PV Plant Performance, Environmental Impact and Grid Connection Parameters", 21st International Middle East Power Systems Conference, MEPCON , Tanta University, Egypt, December 17-19, 2019. Abstract

A few years ago, most of photovoltaics (PV) were installed in rather small stand-alone systems, the majority of today´s modules are implemented in grid-connected systems satisfying well-defined technical aspects. This growth is mostly due to the ambitious subsidy programs adopted by governments in the developing countries. Meanwhile, to be successfully integrated with the utility grid in low, medium, or high voltage networks, it is essential to meet the requirements of the country interconnection code. In this paper, the requirements of the Egyptian grid code for connecting a 5 MW PV plant with utility grid have been examined and evaluated. In addition, the environmental effects of installing the PV plant have been discussed and compared with fossil fuels.

Mahmoud, M. A. E. F., D. K. Ibrahim, and M. Gilany, "A Single-End Fault Location for Multi-Tapped Overhead Distribution Systems", International Middle-East Power Systems Conference (MEPCON), Helwan University, Egypt,, December 27-29, 2016. Abstract

This paper presents an automated fault location scheme for MV overhead distribution networks. The scheme utilizes only the measurements of voltage signals at the main substation. Clarke and Fast Fourier transformations are applied to get the frequency of the travelling wave generated during the
fault. A simple automation system is implemented to identify the faulted lateral. A typical 22 kV distribution system is used to test and validate the proposed scheme. ATP program is used to simulate the tested network while the required calculations are performed by MATLAB developed algorithms. Extensive fault cases are carried out at different fault positions, inception angles, fault resistance and load levels. The calculated errors indicate that the proposed scheme has low sensitivity to the change of the fault conditions that ensures the effectiveness and robustness of the proposed scheme.

Hamdy, M., M. Elshahed, D. Khalil, and E. E. - D. A. El-Zahab, "Stochastic Unit Commitment Incorporating Demand Side Management and Optimal Storage Capacity", Iranian Journal of Science and Technology, Transactions of Electrical Engineering, vol. 43, issue 1, pp. 559–571, 2019. AbstractWebsite

High penetration of wind energy imposes several operational challenges due to its uncertainty and intermittent nature. Flexible energy resources represent key solutions to compensate for power mismatch associated with wind power (WP) uncertainty and intermittency. This paper proposes a new stochastic unit commitment (SUC) problem formulation including high penetration of wind energy, energy storage system (ESS), and demand side management. Firstly, the Latin hypercube sampling is combined with Cholesky decomposition method to generate different WP scenarios. The simulated scenarios are then reduced using the fast forward selection algorithm. Finally, a novel SUC formulation implements these reduced scenarios to size the ESS optimally, considering its cost and benefit maximization of wind energy. To validate the proposed approach, a nine-unit test system is used to demonstrate the reduction in the operational cost and the increase in the utilized wind energy under different operational conditions.

Nasr, A. M., D. K. Ibrahim, S. Fakhry, and M. M. Abdel Aziz, "A Study of Single Phase Static Energy Meter Behavior during Voltage Dips", 14th International Middle East Power Systems Conference (MEPCON’10), Cairo University, Egypt, 2010. Abstract