Browsing by Author "Massoud, A."
Now showing items 21-39 of 39
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Exploitation of additional degrees of freedom of multiphase drives in low-frequency operation of modular multilevel converters
Daoud M.; Elserougi A.; Abdel-Khalik A.; Massoud A.; Bojoi R.; Ahmed S.... more authors ... less authors ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)MMC encounters serious limitations in the zero and low-frequency operation of variable-speed motor drives. In MMC, the voltage ripples of SubModule (SM) capacitor is inversely proportional to the phase current frequency. ... -
Fault-tolerant control of five-phase current source inverter for medium-voltage drives
Elgenedy, M.A.; Abdel-Khalik, A.S.; Elserougi, A.; Ahmed, Shehab; Massoud, A. ( Institution of Engineering and Technology , 2014 , Conference Paper)Multiphase Machines offer a promising solution to many practical challenges due to their advantages over the three phase counterparts, as fault-tolerant capability and lower torque ripple magnitude. Among different multiphase ... -
High-gain DC-DC converters for high-power PV applications: Performance assessment
Alassi A.; Massoud A. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)Conventional non-isolated DC-DC converters provide limited practical gains at high duty cycles due to their parasitic losses. Such trend is not suitable for renewables grid integration due to the high required gain, while ... -
Hybrid-boost modular multilevel converter-based medium-voltage multiphase induction motor drive for subsea applications
Daoud M.; Elserougi A.; Massoud A.; Bojoi R.; Abdel-Khalik A.; Ahmed S.... more authors ... less authors ( Korean Institute of Power Electronics , 2019 , Article)This paper proposes a hybrid-boost Modular Multilevel Converter (MMC) for the Medium-Voltage (MV) Variable Speed Drives (VSDs) employed in subsea applications, such as oil and gas recovery. In the presented architecture, ... -
Investigation of three-phase capacitor-tapped multi-module voltage source converter with selective harmonic elimination
Elserougi A.A.; Massoud A.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)In conventional Two-Level Voltage Source Converters (2L-VSCs), connecting between high/medium dc voltage and medium/low ac voltage requires semiconductor devices rated at the high/medium dc-voltage, which negatively affects ... -
Minimum transmission power loss in multi-terminal HVDC systems: A general methodology for radial and mesh networks
Sayed S.; Massoud A. ( Elsevier B.V. , 2019 , Article)The significant increase of high-power renewable energy sources (e.g., off-shore wind energy systems) in the power networks, has introduced Multi-Terminal High-Voltage DC (MTDC) grids as a prominent approach for transmitting ... -
Model-predictive control for common-mode voltage reduction and third-harmonic current injection techniques with five-phase inverters
Dabour S.M.; Abdel-Khalik A.S.; Ahmed S.; Massoud A. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)This paper employs a Model Predictive Control (MPC) technique to reduce the Common-Mode-Voltage (CMV) in five-phase inverters when third harmonic current injection is applied. According to the inverter space vector model, ... -
Nine-phase six-terminal pole-amplitude modulated induction motor for electric vehicle applications
Abdel-Khalik A.S.; Massoud A.; Ahmed S. ( Institution of Engineering and Technology , 2019 , Article)In electric drive applications that are based on high-speed induction motors (IMs) with an extended speed range, stator winding pole-changing is a possible technique to avoid oversizing the driving motor. The electronic ... -
On the development of flywheel storage systems for power system applications: A survey
Daoud, Mohamed I.; Abdel-Khalik, A. S.; Massoud, A.; Ahmed, S.; Abbasy, Nabil H. ( IEEE , 2012 , Conference Paper)Energy storage systems cannot be considered energy sources but having the ability of storing and discharging energy. They have a vital rule in the reliability and power quality of power systems. There are several energy ... -
Optimal DC voltage control in multi-terminal HVDC Network: Modeling and scenarios
Sayed S.; Massoud A. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)Efficient and balanced power transfer with minimum transmission losses in Multi-Terminal High-Voltage DC (MTDC) network is managed by the hierarchical control layers. A combination of decentralized DC voltage droop control ... -
Performance assessment of L-2LC-L filter (double LC trap)-based grid-connected three-phase voltage source inverter
Azani, H.; Massoud, A.; Ben-Brahim, L.; Williams, B. W.; Holliday, D. ( IEEE , 2018 , Conference Paper)Inverter-Based Distributed Generation (IBDG) units are typically coupled to the grid via three-phase Voltage Source Converters (VSCs). The IBDGs may pollute utility with the injected harmonic currents. In order to meet the ... -
Power angle control of grid-connected capacitor-tapped multi-module voltage source converter
Elserougi A.A.; Massoud A.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)HVDC transmission suits transmitting large amounts of renewable energy power over long distances with low transmission losses. The Capacitor-Tapped Multi-module Converter (CT-MC) can be employed effectively to integrate ... -
Power factor correction converters with continuous input and output currents for battery chargers in data centers: Performance assessment
Hijjawi F.; Anjum R.; Massoud A. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)In this paper, the performance of two types of DC-DC converters namely ?uk and Boost-Buck converters is assessed for battery charging systems. Operation with power factor correction for the input side AC current, and ... -
Secure smart contract-enabled control of battery energy storage systems against cyber-attacks
Mhaisen N.; Fetais N.; Massoud A. ( Elsevier B.V. , 2019 , Article)Battery Energy Storage Systems (BESSs) are an integral part of a sustainable and resilient smart grid. The security of such critical cyber-physical infrastructure is considered as a major priority for both industry and ... -
Sensor-less operation of hybrid boost modular multilevel converter for subsea multiphase medium voltage drives
Daoud M.; Massoud A.; Elserougi A.; Abdel-Khalik A.S.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)This paper introduces Hybrid Boost Modular Multilevel Converter (Hybrid Boost MMC) as a suitable candidate for subsea drive systems. The investigated drive system is based on a five-phase Induction Machine (IM) in order ... -
Series-Connected Multi-Half-Bridge Modules Active Front-End Rectifier for Medium Voltage Variable Speed Drives
Daoud M.; Elserougi A.; Massoud A.; Bojoi R.; Ahmed S. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)Medium-Voltage Variable Speed Drives (VSDs) are the backbone of several critical industries. Providing the proper dc-link voltage to support the VSD's converter is crucial. Conventionally, dc-link voltage is supplied either ... -
Stability analysis of an active-damped LLCL filter- based grid-connected three-phase inverter
Massoud, A.; Ben-Brahim, L.; Hamid, A.; Williams, B.W.; Holliday, D. ( IEEE , 2014 , Conference Paper)Power passive filters are a standard solution for gridcurrent harmonics attenuation. However, these types of filters may cause a resonance between the inverter and the grid. Passive and active damping techniques are employed ... -
Strategies for Decoupling Internal and External Dynamics Resulting from Inter-Arm Passive Component Tolerances in HVDC-MMC
Wang S.; Adam G.; Massoud A.; Holliday D.; Williams B. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)Modular Multilevel Converter (MMC) performance may be adversely affected by passive component tolerances, such as submodule capacitance and arm inductance variations. Depending on control strategies, the differences in ... -
Voltage/load Control Strategy for Smart Distribution Grids with a High Penetration of Renewable Energy Sources
Elsayad, N.E.; Shaban, K.B.; Massoud, A.; Shatshat, R.E. ( European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ) , 2016 , Article)The exponential increase of renewable energy sources (RESs) penetration in the power grid introduces the of voltage instability when RESs are integrated into medium and low voltage networks. This paper proposes a state-machine ...