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Hybrid and modular multilevel converter designs for isolated HVDC-DC converters
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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 ...
Nine-phase six-terminal pole-amplitude modulated induction motor for electric vehicle applications
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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 ...
Low-order space harmonic modeling of asymmetrical six-phase induction machines
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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, ...
Global, regional, and national age-sex-specific mortality and life expectancy, 1950-2017: A systematic analysis for the Global Burden of Disease Study 2017
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Elsevier B.V.
, 2018 , Article)
Background Assessments of age-specific mortality and life expectancy have been done by the UN Population Division, Department of Economics and Social Affairs (UNPOP), the United States Census Bureau, WHO, and as part of ...
An Optimal PWM Technique for Dual-Output Nine-Switch Boost Inverters with Minimum Passive Component Count
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Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
Nine-Switch inverter (NSI) has been recently introduced for independent control of dual ac motors. Although this topology reduces the number of active switches by 25% compared to conventional inverters, it has a main ...
A Family of Discontinuous PWM Strategies for Quasi Z-Source Nine-Switch Inverters
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Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
This paper proposes a new family of discontinuous PWM strategies to control the quasi-Z-source nine-switch inverters (qZS-NSI). The presented strategies provide buck and boost inversion capabilities, and suitable for ...
A Six-Arm Symmetrical Six-Phase Hybrid Modular Multilevel Converter with Unidirectional Current Full-Bridge Submodules
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Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
Multiphase converter complexity is one of the concerns that restrict the widespread utilization of multiphase machines. One of the developmental trends to alleviate the converter complexity is reducing passive and active ...
Modular multilevel DC-DC converter with arm interchange concept
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Institution of Engineering and Technology
, 2020 , Article)
Conventional modular multilevel converters (MMCs) are promising converters for high-voltage high-power applications. Unlike DC-AC conversion, DC-DC conversion of MMCs suffers from unbalanced capacitor voltages due to the ...
An Improved Torque Density Pseudo Six-Phase Induction Machine Using a Quadruple Three-Phase Stator Winding
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Institute of Electrical and Electronics Engineers Inc.
, 2020 , Article)
The nine-phase six-terminal induction machine has recently been proposed as a promising contender to the conventional six-phase asymmetrical winding machine in terms of torque density, phase current quality, stator winding ...
Multimodule Boost-Converter-Based Pulse Generators: Design and Operation
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Institute of Electrical and Electronics Engineers Inc.
, 2020 , Article)
In this article, three different types of pulse generators based on multimodule boost converter ringing circuit are presented, namely, interleaved, stacked, and interleaved-stacked with full design and operational concept. ...