Browsing by Author "Daoud M."
Now showing items 1-4 of 4
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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. ... -
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, ... -
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 ...