Browsing by Author "Abdel-khalik, Ayman"
Now showing items 1-7 of 7
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A Flywheel Energy Storage System for Fault Ride Through Support of Grid-Connected VSC HVDC-Based Offshore Wind Farms
Daoud, Mohamed I.; Massoud, Ahmed M.; Abdel-Khalik, Ayman Samy; Elserougi, Ahmed; Ahmed, Shehab ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)Voltage source converter (VSC)-based high voltage DC (HVDC) transmission is considered the future of offshore power transmission. This paper aims at providing a reliable VSC-HVDC transmission system architecture between ... -
A series flywheel architecture for power levelling and mitigation of DC voltage transients in multi-terminal HVDC grids
Gowaid, Islam Azmy; Elserougi, Ahmed Abbas; Abdel-Khalik, Ayman Samy; Massoud, Ahmed Mohamed; Ahmed, Shehab ( Institution of Engineering and Technology , 2014 , Article)This study proposes a new architecture of flywheel energy storage system (FESS) which can be implemented at generating unit (GU) level (e.g. wind turbine) or scaled up for application in grid-side converter (GSC) stations ... -
Effect of Multilayer Windings with Different Stator Winding Connections on Interior PM Machines for EV Applications
Abdel-Khalik, Ayman Samy; Ahmed, Shehab; Massoud, Ahmed M. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)The interior permanent magnet (IPM) machine equipped with a fractional-slot concentrated winding (FSCW) has met an increasing interest in electric vehicle applications due to its higher power density and efficiency. Torque ... -
Maximum Power Transfer Of Pv-fed Inverter-based Distributed Generation With Improved Voltage Regulation Using Flywheel Energy Storage Systems
El Deeb, Hisham; Massoud, Ahmed; Abbas, Ahmed; Ahmed, Shehab; Abdel-khalik, Ayman; Daoud, Mohamed... more authors ... less authors ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)One of the main issues accompanied with the high penetration of PV distributed generation (DG) systems in low voltage (LV) networks is the overvoltage challenge. The amount of injected power to the grid is directly related ... -
Postfault operation of a nine-phase six-terminal induction machine under single open-line fault
Abdel-Khalik, Ayman Samy; Hamad, Mostafa S.; Massoud, Ahmed M.; Ahmed, Shehab ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)This paper studies the postfault control of a nine-phase six-terminal induction machine (IM) during single open-line fault, which was recently proposed for high-power medium-voltage applications as a promising alternative ... -
Steady-State Equivalent Circuit of Five-Phase Induction Machines with Different Stator Connections under Open-Line Conditions
Abdel-Khalik, Ayman Samy; Ahmed, Shehab; Massoud, Ahmed M. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)The steady-state modeling of multiphase induction machines (IMs) with m phases under open-line fault conditions is usually carried out based on symmetrical component theory. Hence, the estimation of the machine characteristic ... -
Three-wire bipolar high-voltage direct current line using an existing single-circuit high-voltage alternating current line for integrating renewable energy sources in multiterminal DC networks
Elserougi, Ahmed; Massoud, Ahmed Mohamed; Abdel-Khalik, Ayman Samy; Ahmed, Shehab ( Institution of Engineering and Technology , 2016 , Article)When compared with conventional point-To-point high-voltage direct current (HVDC) systems, multiterminal HVDC (MTDC) systems are more economical and flexible. MTDC systems can tie distributed high power renewable energy ...