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Performance Evaluation of Modular Multilevel Converters for Photovoltaic Systems
Linköping University, Department of Electrical Engineering, Integrated Circuits and Systems. arvindb316@gmail.com.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Modular Multilevel Converters (MMCs), over recent years, have gained popularity in high-voltage(HV) and medium-voltage (MV) applications due to their high reliability. Also, with the rapid growth of solar photovoltaics (PV) and energy storage systems, there is a high demand for efficient and reliable power converter solutions. Therefore, due to the seen merits behind MMCs, this thesis assesses their performance for low-voltage (LV) applications. This is accomplished by comparing basic MMC solutions with an equivalent flying capacitors based solution. Such comparison is based on the evaluation of the passive elements requirements, semi-conductor losses, area, voltage, and current stresses, and common-mode voltage. It is worth mentioning that the evaluation is based on utilizing LV MOSFETs. Furthermore, the thesis introduces a modulation scheme for the full-bridge submodule MMC, thus further exploring the different operating regions of the full-bridge based MMC.

Place, publisher, year, edition, pages
2019. , p. 51
Keywords [en]
Modular Multilevel Converters, Converters, Power Converters, Photovoltaics, Photovoltaic systems, Half-bridge MMC, MMC, Full bridge MMC, Full bridge modulation
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-160761ISRN: LiTH-ISY-EX--19/5262--SEOAI: oai:DiVA.org:liu-160761DiVA, id: diva2:1360735
Subject / course
Electronic Devices
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Available from: 2019-11-04 Created: 2019-10-14 Last updated: 2019-11-04Bibliographically approved

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CiteExportLink to record
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