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Dissertations / Theses on the topic 'Cascaded H-bridge converter'

Author: Grafiati

Published: 4 June 2025

Last updated: 15 July 2025

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1

Vodden, John Alan. "Modulation techniques for the cascaded H-bridge multi-level converter." Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/14498/.

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This thesis investigates space-vector modulation and one-dimensional modulation applied to the cascaded H-bridge multi-level converter as a model for one port of the UNIFLEX-PM power converter system. The UNIFLEX-PM converter is a modular system including galvanic isolation at medium frequency intended to replace transformers in future distribution and transmission systems. Power converters in this application must produce good quality voltage waveforms with low power loss. In this work, modulation methods are developed using theoretical analyses and simulation studies, before being verified e

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2

Watson, Alan James. "Selective harmonic elimination methods for a cascaded H-bridge converter." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/14139/.

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In recent years there has been an increased demand for integration of renewable energy into the electricity grid. This has increased research into power converter solutions required to integrate renewable technology into the electricity supply. One such converter is a Cascaded H-Bridge (CHB) Multilevel Converter. Operation of such a topology requires strict control of power flow to ensure that energy is distributed equally across the converters energy storage components. For operation at high power levels, advanced modulation methods may be required to ensure that losses due to non-ideal semic

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3

Taha, Othman Abdulhadi [Verfasser]. "Cascaded H-bridge multilevel converter topology for hybrid photovoltaic-wind turbine systems / Othman Abdulhadi Taha." Siegen : Universitätsbibliothek der Universität Siegen, 2017. http://d-nb.info/1136132309/34.

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4

Viatkin, Aleksandr. "Development of a Test Bench for Multilevel Cascaded H-Bridge Converter with Self-Balancing Level Doubling Network." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14974/.

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This Master degree project was developed during an exchange program, established between the University of Bologna and the Technical University of Munich (TUM). The research activity was conducted at the Institute of Energy Conversion Technology (TUM department) in collobaration with Prof. Dr.-Ing. Hans-Georg Herzog and his research team. A symmetric 3-Phase Cascaded H-bridge Multilevel Inverter (CHBMLI), that is available in the TUM university laboratory, is reconfigured to operate as proposed using a Level Doubling Network (LDN). The LDN takes the form of a 3-phase half-bridge inverter that

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5

Morati, Mathieu. "Contribution à l'étude et au contrôle des convertisseurs multiniveaux : application à la compensation des fours à arc." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0052/document.

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Cette thèse est dédiée aux convertisseurs multiniveaux et aborde les problématiques liées à la compensation des perturbations générées sur un réseau électrique, telles que celles produites par les fours à arc. Elle est composée de quatre chapitres couvrant les thématiques de la modélisation des réseaux électriques, des convertisseurs de tension, du contrôle commande et des stratégies de compensation, accompagnés de simulations et de résultats expérimentaux obtenus sur des équipements industriels de forte puissance. Les applications réseaux étant diverses et variées, les convertisseurs multiniv

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6

Morati, Mathieu. "Contribution à l'étude et au contrôle des convertisseurs multiniveaux : application à la compensation des fours à arc." Electronic Thesis or Diss., Université de Lorraine, 2014. http://www.theses.fr/2014LORR0052.

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Cette thèse est dédiée aux convertisseurs multiniveaux et aborde les problématiques liées à la compensation des perturbations générées sur un réseau électrique, telles que celles produites par les fours à arc. Elle est composée de quatre chapitres couvrant les thématiques de la modélisation des réseaux électriques, des convertisseurs de tension, du contrôle commande et des stratégies de compensation, accompagnés de simulations et de résultats expérimentaux obtenus sur des équipements industriels de forte puissance. Les applications réseaux étant diverses et variées, les convertisseurs multiniv

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7

Marzoughi, Alinaghi. "Investigating Impact of Emerging Medium-Voltage SiC MOSFETs on Medium-Voltage High-Power Applications." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/81822.

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For decades, the Silicon-based semiconductors have been the solution for power electronics applications. However, these semiconductors have approached their limits of operation in blocking voltage, working temperature and switching frequency. Due to material superiority, the relatively-new wide-bandgap semiconductors such as Silicon-Carbide (SiC) MOSFETs enable higher voltages, switching frequencies and operating temperatures when compared to Silicon technology, resulting in improved converter specifications. The current study tries to investigate the impact of emerging medium-voltage SiC MOSF

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8

Etesami, Mohammadhossein. "On metaheuristics for design and modulation of multilevel inverters." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/132309/1/Mohammadhossein%20Etesami%20Thesis_Redacted.pdf.

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Multilevel inverters are introduced as a promising technology for high voltage applications. Associated design limits and control complexities hinder the wide use of multilevel converters. Motor drive overall efficiency is largely affected by the applied modulation technique. Selective Harmonic Elimination (SHE) Pulse Width Modulation (PWM) is a modulation technique which gives an excellent outcome suppressing low-order detrimental harmonics. Solving of the associated highly nonlinear equation set in SHE PWM has been one of the widely discussed numerical problems in power electronics. Three ke

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9

Lamb, Jacob. "Corrective schemes for internal and external abnormalities in cascaded multilevel inverters." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/35803.

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Doctor of Philosophy<br>Department of Electrical and Computer Engineering<br>Behrooz Mirafzal<br>Corrective schemes for facilitating continued operation of dc-ac converters during internal and external abnormalities are presented in this dissertation. While some of the developed techniques are suited for any dc-ac converter topology, most of the presented methodologies are designed specifically for cascaded H-bridge (CHB) multilevel converters. While CHB provide increased scalability and efficiency compared to traditional topologies, these converters are more likely to experience internal faul

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10

Tan, Jiak-San. "Flexibility in MLVR-VSC back-to-back link." Thesis, University of Canterbury. Electrical and Computer Engineering, 2006. http://hdl.handle.net/10092/1119.

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This thesis describes the flexible voltage control of a multi-level-voltage-reinjection voltage source converter. The main purposes are to achieve reactive power generation flexibility when applied for HVdc transmission systems, reduce dynamic voltage balancing for direct series connected switches and an improvement of high power converter efficiency and reliability. Waveform shapes and the impact on ac harmonics caused by the modulation process are studied in detail. A configuration is proposed embracing concepts of multi level, soft-switching and harmonic cancellation. For the configu

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11

Nami, Alireza. "A new multilevel converter configuration for high power and high quality applications." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/33216/1/Alireza_Nami_Thesis.pdf.

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The Queensland University of Technology (QUT) allows the presentation of theses for the Degree of Doctor of Philosophy in the format of published or submitted papers, where such papers have been published, accepted or submitted during the period of candidature. This thesis is composed of ten published /submitted papers and book chapters of which nine have been published and one is under review. This project is financially supported by an Australian Research Council (ARC) Discovery Grant with the aim of investigating multilevel topologies for high quality and high power applications, with speci

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12

Marks, Nathan. "Control and performance of a cascaded H-bridge photovoltaic power system." Thesis, 2016. http://hdl.handle.net/1959.13/1322404.

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Research Doctorate - Doctor of Philosophy (PhD)<br>This thesis presents the control and performance of a Cascaded H-Bridge photovoltaic power system. The cascaded H-Bridge multilevel converter offers a number of attractive features for use in photovoltaic power systems. They provide opportunities for increases in efficiency, superior tracking of the maximum available power and direct connection to higher voltages. This system topology is a relatively immature technology and a number of key areas exist for research. In particular, the individual maximum power point tracking performance requires

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13

Tsai, Sheng Yang, and 蔡昇洋. "Improved DC Voltage Utilization of the Star-Connected Cascaded H-Bridge Converter." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/6tvbfv.

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14

Chu, Pei Yuan, and 朱培元. "Control of DC Bus Voltage of Neutral Point Clamped H-bridge Modules of Cascaded Multilevel converter." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/99053828340705029019.

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15

Huang, Jun-Lin, and 黃俊霖. "Research of Var Compensation and Voltage Balancing Control for the Seven-Level Cascaded H-Bridge Converter." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/61932012580302367251.

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碩士<br>國立清華大學<br>電機工程學系<br>99<br>High power Var Compensators are usually connected to the gird-side high voltage. Using Multilevel Converters as Var Compensators to connect to the gird side can save the cost of transformers. Due to the benefit of easy expansion, Multi-Level Cascaded H-Bridge Converters is often used. However, each H-Bridge has an independent DC capacitor voltage, but there exist the problems of unbalancing capacitor voltages due to different characteristic of device in each H-Bridge. Unbalanced capacitor voltages can damage devices when the converter operates over the rated vol

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16

Chang, Yi Ting, and 張貽婷. "A Swift Compensation for Unbalanced Load and Peak Current Limit Control Based on Delta-Connected Cascaded H-Bridge Converter." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/wbtj2u.

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17

Wang, Bo-Siang, and 王柏翔. "Research of Voltage Balancing Control Based on Zero-Sequence Voltage Injection and Low Voltage Ride-Through Strategies for Cascaded H-bridge Converter." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/49510657581177937325.

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18

Wang, Ching-Wei, and 王敬維. "Research of Voltage Balancing Control of the Delta-connected Cascaded H-Bridge Converters." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/u38s98.

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19

Chen, Sheng-Wen, and 陳聖文. "Power Flow Analysis of DC Bus Voltage Balancing Control in Cascaded H-bridge Converters." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/99406717267516190318.

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20

Yang, Ching-Hsiang, and 楊景翔. "Voltage Balancing Control of the Star-connected Cascaded H-bridge Converters Based on Zero-Sequence Voltage Injection." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/4q6jrc.

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21

Pappu, Roshan Kumar. "Studies on Single DC Link Fed Multilevel Inverter Topologies by Cascading Flying Capacitor and Floating Capacitor Fed H-Bridges." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/3189.

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Use of multilevel inverters are inevitable in medium and high voltage drives. This is due to the fact that the multilevel inverters can produce voltages in smaller steps which will reduce the harmonic content and result in more sinusoidal voltages and currents as compared to voltages and currents from two-level inverters. Due to the device limitations, use of two-level inverters is not possible in medium and high voltage drive applications. Though multiple devices can be connected both in series and parallel to achieve two-level operation, the output voltages still suﬀer from high harmonic con

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22

Pappu, Roshan Kumar. "Studies on Single DC Link Fed Multilevel Inverter Topologies by Cascading Flying Capacitor and Floating Capacitor Fed H-Bridges." Thesis, 2014. http://hdl.handle.net/2005/3189.

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Use of multilevel inverters are inevitable in medium and high voltage drives. This is due to the fact that the multilevel inverters can produce voltages in smaller steps which will reduce the harmonic content and result in more sinusoidal voltages and currents as compared to voltages and currents from two-level inverters. Due to the device limitations, use of two-level inverters is not possible in medium and high voltage drive applications. Though multiple devices can be connected both in series and parallel to achieve two-level operation, the output voltages still suﬀer from high harmonic con

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