Browsing by Author "Abdel-Khalik, A."
Now showing items 1-20 of 42
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A bearingless coaxial magnetic gearbox
Abdel-Khalik, A.S.; Ahmed, Shehab; Massoud A. ( Elsevier , 2014 , Article)Recently, magnetic gearboxes (MGBs) are serious contenders to their conventional mechanical counterparts in terms of reduced maintenance requirements, improved reliability, tolerance to mechanical inaccuracies, and inherent ... -
A dual three-phase induction machine based flywheel storage system driven by modular multilevel converters for fault ride through in HVDC systems
Daoud, M. I.; Massoud, A.; Elserougi, A.; Abdel-Khalik, A.; Ahmed, Shehab ( IEEE Computer Society , 2016 , Conference Paper)One of the main challenges of voltage source converter based high voltage direct current (VSC-HVDC) transmission systems is the AC faults at the grid side. This work introduces the integration of multiphase induction machine ... -
A five-phase linear induction machine with planar modular winding
Abdel-Khalik, A.S.; Ahmed, S.; Massoud, Ahmed ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Linear induction motors (LIMs) have become a competitive alternative in electric traction. Three-phase LIM commonly uses double layer overlapping distributed windings. Although this winding configuration results in more ... -
A new permanent-magnet vernier machine using a single layer winding layout for electric vehicles
Abdel-Khalik, A.S.; Ahmed, Shehab; Massoud, A. ( IEEE , 2014 , Conference Paper)Permanent magnet (PM) vernier machines have shown promise in electric vehicle applications as they offer high torque density and low speed/high torque operation by introducing flux-modulation poles that modulate the ... -
A new single tooth winding layout for a single-phase induction motor with segmented stator
Abdel-Khalik, A.S.; Diab, M.S.; Ahmed, S.; Massoud, Ahmed ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Machines with modular structure significantly simplify the manufacturing process, particularly the stator winding, and highly increase the slot fill factor. The non-overlapping concentrated winding, or single tooth winding, ... -
A permanent-magnet machine with improved torque density based on a single layer winding layout for electric vehicle applications
Abdel-Khalik, A.S.; Gadoue, S.; Ahmed, Shehab; Massoud, A. ( IEEE , 2014 , Conference Paper)This paper proposes a novel single layer winding layout for a permanent magnet machine with improved torque density for electric vehicle applications. In this paper, two permanent-magnet (PM) machines with outer rotors and ... -
A reduced switch-count single-phase SEPIC-based inverter
Diab, M.S.; Elserougi, A.; Massoud, Ahmed; Abdel-Khalik, A.S.; Ahmed, S. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Recently, reduced switch-count converters have garnered exceptional attention in power electronic systems due to the diversified advantages such as low cost, low weight and volume, and high reliability offered by them. In ... -
A static three-phase to five-phase transformer based on Scott connection
Abdel-Khalik, A.S.; Shafik, Z.; Elserougi, A.; Ahmed, Shehab; Massoud, A. ( Elsevier B.V. , 2014 , Article)Multiphase machines have become challenging candidates for safety-critical applications that require wide fault tolerant capabilities and higher system reliability. However, this adds more complexity to the adopted power ... -
A switched PV approach for extracted maximum power enhancement of PV arrays during partial shading
Elserougi, A. A.; Diab, M. S.; Massoud, Ahmed; Abdel-Khalik, A. S.; Ahmed, S. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)This paper proposes a switched photovoltaic (PV) approach to enhance the extracted maximum power from a PV array during partial shading conditions. The proposed system is simple and cost effective. However, it may provide ... -
An asymmetrical six phase induction machine for flywheel energy storage drive systems
Daoud, M.I.; Abdel-Khalik, A.S.; Massoud, Ahmed; Ahmed, S. ( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)Energy storage systems have become an essential part of power utilities due to their capability of providing high level of power quality and stability. Flywheel energy storage systems (FESSs) are now employed with numerous ... -
An asymmetrical six-phase induction machine-based flywheel energy storage system using modular multilevel converters
Daoud, M. I.; Massoud, A.; Abdel-Khalik, A.; Ahmed, Shehab ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)Energy storage systems have become an essential pillar in most of electrical engineering applications due to introduced technical and economical merits, particularly following the pronounced grid-integration of renewable ... -
An asymmetrical six-phase induction motor drive based on nine-arm Modular Multilevel Converter (9AMMC) with circulating current suppression
Elserougi, A.A.; Abdel-Khalik, A.S.; Massoud, Ahmed; Ahmed, S. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Asymmetrical six-phase (dual three-phase) induction motors have received significant attention in high power medium voltage drive applications. Normally, two three-phase voltage source converters are used to supply the ... -
An interline dynamic voltage restoring and displacement factor controlling device (IVDFC)
Elserougi, A.; Massoud, Ahmed Mohamed; Abdel-Khalik, A.S.; Ahmed, Shehab; Hossam-Eldin, Ahemd Abdalla ( IEEE , 2014 , Article)An interline dynamic voltage restorer (IDVR) is invariably employed in distribution systems to mitigate voltage sag/swell problems. An IDVR merely consists of several dynamic voltage restorers (DVRs) sharing a common dc ... -
Analysis of Scalar PWM Approach with Optimal Common-Mode Voltage Reduction Technique for Five-Phase Inverters
Dabour S.M.; Abdel-Khalik A.S.; Massoud A.M.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)Research on common-mode-voltage (CMV) reduction in multiphase drive systems has recently met an intensified interest in the available literature. This paper first explores two existing space-vector-based CMV reduction ... -
Application of Standard Three-Phase Stator Frames in Prime Phase Order Multiphase Machine Construction
Abdel-Khalik A.S.; Massoud A.M.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)The application of multiphase machines in high-power applications is now a recognized alternative, thanks to their higher fault-Tolerance when compared with standard three-phase systems. Although multiphase machines with ... -
Assessment of sensorless Kalman filter-based dual-loop control strategies for grid-connected VSIs with LCL filters
El-Deeb, H.M.; Massoud, Ahmed; Abdel-Khalik, A. S.; Ahmed, S. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)This paper illustrates the assessment between the multiloop control strategies that aim to damp the resonance hazard of LCL-filters and expanding the available stability margins. The establishment of the multiloop control ... -
Boost inverter-based HVDC transmission system with inherent blocking capability of AC side contribution during DC side faults
Elserougi, A.; Massoud, A.M.; Abdel-Khalik, A.S.; Ahmed, Shehab ( Elsevier Ltd , 2014 , Article)Semiconductor advancements in the past three decades have positioned the voltage source converter-based HVDC (VSC-HVDC) solution as a practical and popular alternative to its line-commutated converter high voltage DC ... -
Common-mode voltage reduction for space vector modulated three- to five-phase indirect matrix converter
Dabour S.M.; Abdel-Khalik A.S.; Ahmed S.; Massoud A.M.; Allam S.M. ( Elsevier Ltd , 2018 , Article)All available Pulse Width Modulation (PWM) techniques employed to different Matrix Converter (MC) topologies generally generate switching Common-Mode Voltage (CMV), which introduces numerous operational concerns in electric ... -
Common-mode voltage reduction of matrix converter fed seven-phase induction machine
Dabour, S. M.; Abdel-khalik, A. S.; Ahmed, Shehab; Massoud, A. ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)This paper introduces space vector modulation (SVM) schemes for reducing the common mode voltage (CMV) of a direct three-to seven-phase matrix converter (3?7 MC) fed a seven-phase induction motor. The proposed techniques ... -
Comparative evaluation of four quasi-square wave fed multiphase induction machines
Abdel-Khalik, A.; Ahmed, S.; Massoud, Ahmed ( IEEE , 2011 , Conference Paper)Multiphase winding structures provide induction machines with favorable fault tolerant characteristics. Medium voltage drives have also benefited from the favorable application characteristics of multiphase machines, as ...