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Dissertations / Theses on the topic 'Cascaded Multilevel Inverter'

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Published: 2 June 2025

Last updated: 31 July 2025

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1

Visser, Abraham Johannes. "Transformerless series dip/sag compensation with a multilevel cascaded inverter." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52592.

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Thesis (MScEng)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: This thesis covers the development of a multilevel cascaded inverter for the purpose of costeffective transformerless series dip compensation. Of all known power quality problems, voltage dips are the greatest reason for concern. Dips/sags occur more frequently than outages and therefore tend to be more costly for industry as modem technical equipment becomes all the more sensitive to the quality and reliability of supply. A number of devices already exist to compensate for this problem, but the cost of most of thes

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2

Massoud, Ahmed Mohammed. "Application of the cascaded multilevel inverter as a shunt active power filter." Thesis, Heriot-Watt University, 2004. http://hdl.handle.net/10399/321.

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3

Hasan, Md Mubashwar. "Design, Optimization and Implementation of a High Frequency Link Multilevel Cascaded Inverter." Thesis, Curtin University, 2018. http://hdl.handle.net/20.500.11937/69364.

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This thesis presents a new concept of cascaded MLI (CMLI) device reduction by utilizing low and high frequency transformer link. Two CMLI topologies, symmetric and asymmetric are proposed. Compared with counterpart CMLI topologies available in the literatures, the proposed two inverter topologies in this thesis have the advantages of utilizing least number of electronic components without compromising overall performance particularly when a high number of levels is required in the output voltage waveform.

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4

Zhang, Xiaohu. "Control Strategy of Cascaded H-Bridge Multilevel Inverter with PV System as Separate DC Source." Thesis, KTH, Elektrisk energiomvandling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-53663.

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The integration of solar energy to the power grid is a challenging topic nowadays. Many topologies and control methods have already been proposed. In this thesis, the cascaded H-bridge (CHB) multilevel inverter is adopted for the photovoltaic (PV) energy integration. The purpose of this thesis is to develop a control strategy for the CHB multilevel inverter with PV array as separate DC source. The thesis first gives a short review of the three commonly used multilevel inverter topologies. Then the PV array with maximum power point tracker (MPPT) is modeled. The selection mechanism with some im

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5

Siaw, Teck Ung. "Vector Control of Multilevel Cascaded H-Bridge Inverter Based Static Synchronous Compensator with Simultaneous Functionalities." Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/81991.

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Multilevel cascaded inverter based static synchronous compensator (STATCOM) system and its control scheme were designed and implemented to achieve low-switching frequency and high-bandwidth power control. The gain parameters of PI-controller were also formulated to obtain the best values for achieving good dynamic and transient performances. To verify and validate the aforementioned work with Matlab/simulink, the proposed system was simulated to provide different simultaneous functionalities: namely, (i) reactive power compensation and (ii) active harmonic filtration at th epoint of common cou

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6

Liu, Libo [Verfasser]. "A hybrid cascaded multilevel inverter using variable DC-link voltage technique for battery electric vehicles / Libo Liu." Ulm : Universität Ulm, 2021. http://d-nb.info/1226855814/34.

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7

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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8

Ekström, Rickard. "Offshore Marine Substation for Grid-Connection of Wave Power Farms : An Experimental Approach." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-229191.

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Wave power is a renewable energy source with great potential, which is why there are more than a hundred ongoing wave power projects around the world. At the Division of Electricity, Uppsala University, a point-absorber type wave energy converter (WEC) has been proposed and developed. The WEC consists of a linear synchronous generator placed on the seabed, connected to a buoy floating on the surface. Power is absorbed by heave motion of the buoy, and converted into electric energy by the generator. The point-absorber WEC must be physically much smaller than the wavelength of the incoming waves

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9

Algarny, Khalil Saad A. "The development of three-phase cascaded h-bridge multilevel inverter with DC-side sensor-less control for applications of independent MPPT photovoltaic and battery grid-connected systems." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/207283/1/Khalil%20Saad%20A_Algarny_Thesis.pdf.

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The utilization of solar energy has grown exponentially in the past years mainly due to environmental concerns. Finding ways to reduce the cost of solar energy systems and their complexity are of great importance. Among the key achievements of this project are, designing an efficient and economical photovoltaic system architecture, introducing DC-link voltage estimation to the three-phase PV system based multilevel-inverter, introducing PV current estimation to the three-phase PV system based multilevel-inverter, achieving phase balancing by injecting zero-sequence voltage utilizing the estima

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10

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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11

Adams, Stephan Christopher. "Closed loop, co-operative, distributed, control of a multilevel modular cascade converter (MMCC)." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/157714/1/Stephan_Adams_Thesis.pdf.

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This thesis uses computer simulation techniques to develop and test a distributed control structure for a single-sided bridge-cell, multilevel modular cascade converter STATCOM. The control technique was designed to track a reference current and balance the voltage in the modules. A master controller was designed to track the reference current while each module had a controller which oversaw balancing the voltage among the modules. The master controller was also able to estimate the total dc voltage in the system, reducing the number of sensors required and making the control structure truly d

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12

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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13

Srndovic, Milan <1987&gt. "Theoretical and Experimental Analysis of Output Power Quality in Single-Phase Cascaded H-Bridge Multilevel Inverters." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/7817/1/PhD%20thesis%20-%20Milan%20Srndovic%20-%20final.pdf.

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In this thesis simple closed-form asymptotic solutions for estimating the output power quality in single-phase cascaded H-bridge multilevel inverters are presented for staircase modulation technique and pulse-width modulation (PWM) technique. The analysis is carried out in the time domain considering the whole harmonic content and being used for an arbitrary inverter level count. In case of the staircase modulation technique, the voltage and current ripple normalized means square (NMS) expressions are obtained in time domain considering the fundamental period. Voltage and current total harmon

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14

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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15

Bressan, Marcos Vinicius. "Inversor multinível híbrido baseado na cascata do conversor 3L-NPC e conversores meia ponte." Universidade do Estado de Santa Catarina, 2014. http://tede.udesc.br/handle/handle/2079.

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Made available in DSpace on 2016-12-12T20:27:38Z (GMT). No. of bitstreams: 1 Marcos Vinicius Bressan.pdf: 3794882 bytes, checksum: c55b9af15d7d913dc3d962a990a792c4 (MD5) Previous issue date: 2014-02-18<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This work present a new three-phase hybrid multilevel inverter, that is composed of two topologies in cascaded association. The three-phase NPC and the half-bridge modules are connected in series. This con¬nection increases the number of the output voltage levels, improves the output voltage quality and rises the power process b

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16

Panda, Yashobanta. "Analysis Of Cascaded Multilevel Inverter Induction Motor Drives." Thesis, 2010. http://ethesis.nitrkl.ac.in/2928/1/Final_thesis_23-02-11.pdf.

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This thesis aims to extend the knowledge about the performance of different cascaded multilevel inverter induction motor drives through harmonic analysis. Large electric drives and utility applications require advanced power electronics converter to meet the high power demands. As a result, multilevel power converter structure has been introduced as an alternative in high power and medium voltage situations. A multilevel converter not only achieves high power ratings, but also improves the performance of the whole system in terms of harmonics, dv/dt stresses, and stresses in the bearings of a

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17

Behera, Minakhi. "Cascaded Multilevel Inverter Based Transformerless Traction Drive for Railway Applications." Thesis, 2012. http://ethesis.nitrkl.ac.in/4025/1/23.pdf.

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Electric Railway Traction Drive has been introduced as a solution to the environmental problem caused by the diesel or steam engines. Generally, an AC electrified railway system is supplied with 25kV, 50 Hz AC supply. It is fed to the traction motor after stepping down to three phase, 400 V, 50Hz with the help of a transformer. This magnetically coupled transformer lead to high weight, several losses and reduced efficiency. The railway electric traction requires high voltage operation. This is achieved with the help of multilevel inverter. Among the various multilevel inverters, the cascaded m

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18

Yeh, Shou-heng, and 葉守恆. "A Hybrid Phase-shifted SHE Modulation Strategy for Cascaded multilevel Inverter." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/17568919145533752900.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>100<br>This thesis proposes a hybrid modulation strategy, phase-shifted strategy and selective harmonic elimination PWM (SHE PWM) strategy, for the cascaded H-bridge multilevel inverter. The SHE PWM strategy controls the fundamental voltages and eliminates eleventh, thirteenth, twenty-third and twenty-fifth order harmonics with a number of notch angles. These notch angles can be calculated through Fourier analysis. The waveform characters of quarter-wave and half-wave symmetries are useful for solving the notch angles. To set the phase shift of the H-bridge module in

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19

Tsai, I.-Chiao, and 蔡依樵. "Cascaded Multilevel Inverter for Photovoltaic System and Fault Diagnosis and Tolerant Strategy." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/73807892166452525610.

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碩士<br>國立高雄應用科技大學<br>電機工程系<br>98<br>This thesis studies the structure and principle of Cascaded H-bridge Multilevel Inverter and Photovoltaic System. The MATLAB is used to build the model of power circuit of the Inverter for PV System. In addition, the harmonic characteristics of the multilevel inverter output voltage are studied when the power elements short-circuit. According to the analysis, a fault detection and diagnosis module is proposed for identify the faulty cell. Following the fault diagnosis and bypass the faulty cell, a fault tolerance strategy is used to maintain the inverter in c

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20

Bala, Krishna Pagadala. "Modular Cascaded H-Bridge Multilevel Inverter with Distributed MPPT for Grid Connected Application." Thesis, 2017. http://ethesis.nitrkl.ac.in/8930/1/2017_MT_PBKrishna.pdf.

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This work presents a modular cascaded H-bridge multilevel photovoltaic (PV) inverter for three-phase grid-connected applications. The topology of modular cascaded H-Bridge multilevel inverter helps to improve the efficiency and flexibility of PV systems. In this work, a distributed maximum power point tracking control scheme is applied for three-phase multilevel inverter to understand a better utilization of PV modules and maximize the solar energy extraction. Because this distributed MPPT control scheme allows independent control of each dc-link voltage. The mismatches in PV panel should take

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21

Dash, Ashish Ranjan. "Investigation of Cascaded Multilevel Inverter Based SAF with Alternative Configurations Under Ideal and Nonideal Grid Voltage Conditions." Thesis, 2019. http://ethesis.nitrkl.ac.in/10125/1/2019_PhD_ARDash_514EE6022_Investigation.pdf.

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Issue of harmonics is a greater apprehension as it severely affects the power quality of the supply and utility. Increased use of nonlinear loads in medium and high power application causes a shocking intensification of harmonic pollution, which results in several negative consequences. As a result, the performance analysis of power conditioning devices has become very crucial in the design and engineering process. Over the years, active power filter (APF) gains much more attention due to its significant harmonics elimination standard in AC power network and provides a wider perspective to res

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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://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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23

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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24

Yadav, Apurv Kumar. "Investigations on Multilevel Voltage Space Vectors Generated by Stacked and Cascaded Basic Inverter Cells with Capacitor Voltage Control for Induction Motor Drives." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/5451.

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Induction motor drives (IMD) require a DC-AC inverter system to obtain variable frequency operation. Generally, IMD uses conventional 2-level inverters. The conventional 2-level inverter has its pole switching between zero and DC bus voltage. Thus, the switching in 2-level inverter results in high dv/dt in the inverter pole voltage. Also, the switches in the inverter need to block a full DC link voltage which increases the switching losses. These issues with drive scheme using 2-level inverter can be addressed by using multilevel inverters (MLI). Some of the frequently used MLI topologies incl

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25

Khomfoi, Surin. "Fault Diagnostic System for Cascaded H-bridge Multilevel Inverter Drives Based on Artificial Intelligent Approaches Incorporating a Reconfiguration Technique." 2007. http://trace.tennessee.edu/utk_graddiss/212.

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A fault diagnostic and reconfiguration system in a multilevel inverter drive (MLID) using artificial intelligent based techniques is developed in this dissertation. Output phase voltages of a MLID can be used as valuable information to diagnose faults and their locations. It is difficult to diagnose a MLID system using a mathematical model because MLID systems consist of many switching devices and their system complexity has a nonlinear factor. Therefore, a neural network (NN) classification is applied to the fault diagnosis of a MLID system. Multilayer perceptron (MLP) networks are used to id

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26

Viju, Nair R. "Investigations on Stacked Multilevel Inverter Topologies Using Flying Capacitor and H-Bridge Cells for Induction Motor Drives." Thesis, 2018. http://etd.iisc.ac.in/handle/2005/4026.

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Conventional 2-level inverters have been quite popular in industry for drives applications. It used pulse width modulation techniques to generate a voltage waveform with high quality. For achieving this, it had to switch at high frequencies and also the switching is between 0 and Vdc. Also additional LC filters are required before feeding to a motor. 3-phase IM is the work horse of the industry. Several speed control techniques have been established namely the V/f control technique and for high performance, vector control is adopted. An electric drive system comprises of a rectifier, inverter

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27

Viju, Nair R. "Investigations on Stacked Multilevel Inverter Topologies Using Flying Capacitor and H-Bridge Cells for Induction Motor Drives." Thesis, 2018. http://etd.iisc.ernet.in/2005/4005.

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Conventional 2-level inverters have been quite popular in industry for drives applications. It used pulse width modulation techniques to generate a voltage waveform with high quality. For achieving this, it had to switch at high frequencies and also the switching is between 0 and Vdc. Also additional LC filters are required before feeding to a motor. 3-phase IM is the work horse of the industry. Several speed control techniques have been established namely the V/f control technique and for high performance, vector control is adopted. An electric drive system comprises of a rectifier, inverter

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28

Reddy, Polu Madhava. "Single DC Source Fed Cascaded Multilevel Inverter along with AC L-C-L Resonant Converter for High Current and Low Voltage Applications." Thesis, 2015. http://ethesis.nitrkl.ac.in/7053/1/Single_DC_Reddy_2015.pdf.

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In the beginning, the power supplies employed in very low voltage and high current application such as arc welding, electroplating process. But in this power supplies use in line frequency step-down transformers and rectifier based control circuits, which has the demerits of large size, inefficient, high output ripple and more operational costs. So there is need to improve the power supplies for high current and low voltage applications. Recently, an efficient and switched-mode power supply (SMPS) suited for low voltage and very high current applications. In this uses a multi-level inverter (M

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29

"Comparison analysis of cascaded multilevel inverters." Tese, Biblioteca Digital de Teses e Dissertações da UFSM, 2006. http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=310.

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30

Macedo, Rui Jorge Matos. "Desenvolvimento de um inversor multinível monofásico para aplicações de qualidade de energia elétrica." Master's thesis, 2015. http://hdl.handle.net/1822/51285.

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Dissertação de mestrado integrado em Engenharia Eletrónica e de Computadores<br>A exigência na qualidade da forma de onda sintetizada pelos inversores de eletrónica de potência é cada vez maior, estando esta qualidade associada a um melhor funcionamento e a um maior tempo de vida por parte das cargas e sistemas associados aos inversores. A melhoria na qualidade das formas de onda geradas pelos inversores tem sido conseguida maioritariamente através do aumento da frequência de comutação dos semicondutores. Esta estratégia provoca perdas de comutação mais elevadas, maior stress aplicado ao

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31

Lin, Chi-Hung, and 林季宏. "The Switching Flow-Graph Modeling Technique for Cascaded Multilevel Inverters." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/89884862522802099310.

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碩士<br>朝陽科技大學<br>資訊工程系碩士班<br>97<br>In this thesis, a graphic modeling technique, switching flow-graph (SFG) technique, is applied to derive the large-signal model of cascaded multilevel inverters. By introducing the concept of virtual switch together with its virtual switching function, the modeling work becomes straightforward without complicated mathematic operations. Based on the developed model, the transient and steady state behaviour of cascaded multilevel inverters can easily be analysed at system level. Moreover, the proposed large-signal SFG model can be implemented in MATLAB/SIMULINK

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Y, Suresh. "Investigation on Cascade Multilevel inverter for Medium and High-Power Applications." Thesis, 2012. http://ethesis.nitrkl.ac.in/4444/2/Thesis-Y.Suresh.pdf.

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It is hard to connect a single power semiconductor switch directly to medium voltage grids (2.3, 3.3, 4.16, or 6.9 kV). For these reasons, a new family of multilevel inverters has emerged as the solution for working with higher voltage levels. Multilevel inverters have received more attention in industrial application, such as motor drives, static VAR compensators and renewable energy systems, etc. Primarily multilevel inverters are known to have output voltages with more than two levels. As a result, the inverter output voltages have reduced harmonic distortions and high quality of waveforms.

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Liu, Ching-Duei, and 劉金堆. "Research of Novel Hybrid Cascade Multilevel Inverter for Dynamic Voltage Restorer Application." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/17864475533062803087.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>93<br>In recent years the development of multilevel inverter has been gradually matured for high power and high voltage applications, such as high-voltage DC transmission and high-speed railroad system. Based on the manufacture technology of power semiconductors, the power switches have large voltage and current stresses and it makes the application of multilevel inverter is achieved. Multilevel inverter can use low voltage devices to implement high or medium voltage applications. The more voltage levels are generated on the inverter such that the voltage harmonic

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Tsai, Tsung Wei, and 蔡宗衞. "Real-Time Algorithm of Conduction Angle Minimizing THD for Cascade Multilevel Inverter and Its Hardware-in-the-loop Simulation." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/32974207204958013615.

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碩士<br>國立聯合大學<br>電機工程學系碩士班<br>100<br>This thesis presents real-time calculation algorithms of switching conduction angles minimizing total harmonic distortion (THD) for cascade multilevel inverters based on optimized harmonic stepped waveform (OHSW). The proposed algorithms effectively reduce the computing time to achieve real-time control while minimizing THD. These algorithms are implemented not only in a digital real-time simulator (RT-LAB) but also in a Hardware-in-the-loop environment using FPGA for testing their effectiveness.

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Hao, Chen Hsin, and 陳信豪. "Design and Implementation of STATCOM Employing Cascade Multilevel Voltage-Source Inverters with CPLD and Novel Floating-point DSP TMS320C6711-Based Controller." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/08360317112319428039.

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碩士<br>長庚大學<br>電機工程研究所<br>92<br>This thesis proposes the design and implementation of a static synchronous compensator (STATCOM) with cascade multilevel inverter for the var compensation of distribution systems. First, the compensation scheme of the STATCOM is derived. Then, the simulation is made with the Matlab/Simulink program to evaluate the effect of compensation. Accordingly, a hardware prototype is built by using a novel floating-point DSP TMS320C6711-based system with programmable and logical IC (CPLD). The experimental results are given for verification

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36

Chien, Shih-Hai, and 錢世海. "A Study on Calculating the Optimal Turn-on Angle of Multilevel Cascade Inverter with Particle Swarm Optimization to Reduce Total Harmonic Distortion and the Verification of Hardware-in-the-loop." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/31463317801239457041.

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碩士<br>國立聯合大學<br>電機工程學系碩士班<br>102<br>The optimal switch conduction angle to solve the cascade multilevel inverter is regarded as the research subject in this study. The voltage on the power switches of a cascade multilevel inverter could be applied to high-power environments. Nevertheless, it is necessary to use the modulation strategy to have the output waveform approach sine waves, where the harmonic optimization staircase waveform strategy in step modulation could reduce the switching frequency. However, nonlinear equations need to be solved for calculating the optimal switch conduction angl

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