Browsing by Author "Massoud, A. M."
Now showing items 21-31 of 31
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Hybrid and modular multilevel converter designs for isolated HVDC-DC converters
Gowaid I.A.; Adam G.P.; Massoud A.M.; Ahmed S.; Williams B.W. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)Efficient medium and high-voltage dc-dc conversion is critical for future dc grids. This paper proposes a hybrid multilevel dc-ac converter structure that is used as the kernel of dc-dc conversion systems. Operation of the ... -
Investigation of sensorless capacitor voltage balancing technique for modular multilevel converters
Elserougi, A.; Daoud, M.I.; Massoud, A.M.; Abdel-Khalik, A.S.; Ahmed, Shehab ( IEEE , 2014 , Conference Paper)Modular Multilevel converters (MMC) have become one of the most promising topologies for DC-AC conversion in recent years. Capacitor voltage balancing is a vital issue for proper operation of the MMC. Generally, conventional ... -
Low-order space harmonic modeling of asymmetrical six-phase induction machines
Abdel-Khalik A.S.; Hamdy R.A.; Massoud A.M.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)Multiphase machines are commonly analyzed using vector space decomposition modeling technique, where the original phase variables are decomposed into multiple orthogonal subspaces. The machine torque production and, ... -
Low-voltage DC input, high-voltage pulse generator using nano-crystalline transformer and sequentially charged MMC sub-modules, for water treatment applications
Elgenedy, M. A.; Massoud, A. M.; Holliday, D.; Ahmed, Shehab; Williams, B ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)This paper proposes a new high-voltage Pulse Generator (PG), fed from low voltage dc supply Vs. This input supply voltage is utilized to charge two arms of series-connected modular multilevel converter sub-module capacitors ... -
Nine-Phase Six-Terminal Induction Machine Modeling Using Vector Space Decomposition
Abdel-Khalik A.S.; Massoud A.M.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)The nine-phase six-terminal induction machine (IM) has been recently proposed as a promising contender to the conventional asymmetrical six-phase type in terms of torque density, stator winding simplicity, and fault-tolerant ... -
Performance evaluation of an on-board integrated battery charger system using a 12-Slot/10-pole surface-mounted PM propulsion motor
Abdel-Khalik A.S.; Ahmed S.; Massoud A.M. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)The concept of Electric Vehicles (EVs) withonboard integrated battery chargers, which can be directly connected to the three-phase ac mains, has recently emerged as a cost effective and a practical alternative to charging ... -
Power control of grid-connected high-gain boost full-bridge modular multilevel converter
Elserougi A.A.; Massoud A.M.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)Conventional Modular Multilevel Converter (MMC) with half-bridge submodules (HB-SMs) can be used for gird-integration of renewable energy sources, but with limited voltage gain. To elevate the generated ac output voltage ... -
Quasi two-level PWM operation of a nine-arm modular multilevel converter for six-phase medium-voltage motor drives
Diab M.S.; Adam G.P.; Williams B.W.; Massoud A.M.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)This paper proposes a hybrid converter for medium-voltage six-phase machine drive systems that mixes the operation of a traditional two-level voltage-source inverter and the modular multilevel converter (MMC) to enable ... -
Self-balanced non-isolated hybrid modular DC-DC converter for medium-voltage DC grids
Elserougi A.A.; Massoud A.M.; Abdelsalam I.; Ahmed S. ( Institution of Engineering and Technology , 2018 , Article)Here, a new bi-directional hybrid modular non-isolated DC-DC converter is proposed where it consists of a boost converter (BC) fed from the high-voltage (HV) side. At the BC output stage, a certain number of half bridge ... -
Voltage control in distribution networks using current source converter STATCOM based on state feedback controller and Kalman filter
Ahmad H.M.S.; Massoud A.M.; Meskin N. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)In transmission and Medium-Voltage (MV) distribution systems, the voltage can be controlled by reactive power due to the high X/R ratio of the cables/overhead lines. Maintaining voltage within a fixed limit is critical to ... -
Voltage sag mitigation employing dynamic voltage restorer with minimum energy requirements: Analysis and implementation
Messiha, M. A.; Baraket, C. F.; Massoud, A. M.; Iqbal, A.; Soliman, R. ( Institution of Engineering and Technology , 2016 , Conference Paper)The objective of this paper is to design and implement an economical and efficient single phase dynamic voltage restorer (DVR) that compensates for voltage sag conditions. In this paper, different techniques of voltage sag ...