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Differential Wye Modular Multilevel AC Converter (DW-M2AC) for Direct AC/AC Power Conversion
DownloadFall 2022
Direct AC/AC MMCs are used in a wide variety of power system applications such as interconnecting asynchronous grids with different frequencies, renewable energy integrations and medium voltage variable frequency motor drives. Due to the advantages such as lower component count and lesser...
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Fall 2020
This thesis develops a time averaged model (TAM) and a dynamic phasor model (DPM) of a generalised modular multilevel converter (MMC) structure that can be used to represent four different MMC topologies. These four topologies include two different classes of next generation MMCs that are...
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Fall 2022
Line Commutated Converter based High Voltage DC (LCC-HVDC) is the dominant technology of HVDC power transmission worldwide. LCC-HVDC has lower cost of implementation and lower power losses, accompanied by higher voltage capabilities and higher power levels, in comparison to Voltage Source...
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Fall 2022
The MMC is the dominant voltage-sourced converter technology for HVDC systems including terrestrial power transmission and offshore wind power integration. It is also a state-of-the-art solution for emerging MVDC applications such as bipolar dc distribution and grid integration of renewable...
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Spring 2018
This thesis proposes a multiport dc-dc modular multilevel converter, which is the first truly modular solution for a \"dc hub\" that can interconnect multiple MVDC or HVDC systems in future dc grids. The proposed converter, termed MP-DCMMC, consists of modular subconverters that can be added to...
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Fall 2021
Dual inverter topologies can produce multilevel output voltage waveforms and have multiple degrees of freedom in control. Due to their versatility and modular nature, they find many different applications in power electronics. Although these topologies have been in existence for almost three...