Journal ArticleDOI
Multicarrier PWM strategies for multilevel inverters
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TLDR
A PWM method is developed for cascaded and hybrid inverters to achieve the same harmonic gains as phase disposition PWM achieves for diode-clamped inverters.Abstract:
Analytical solutions of pulsewidth-modulation (PWM) strategies for multilevel inverters are used to identify that alternative phase opposition disposition PWM for diode-clamped inverters produces the same harmonic performance as phase-shifted carrier PWM for cascaded inverters, and hybrid PWM for hybrid inverters, when the carrier frequencies are set to achieve the same number of inverter switch transitions over each fundamental cycle. Using this understanding, a PWM method is then developed for cascaded and hybrid inverters to achieve the same harmonic gains as phase disposition PWM achieves for diode-clamped inverters. Theoretical and experimental results are presented in the paper.read more
Citations
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Journal ArticleDOI
Recent Advances and Industrial Applications of Multilevel Converters
Samir Kouro,Mariusz Malinowski,K. Gopakumar,Josep Pou,Leopoldo G. Franquelo,Bin Wu,Jose Rodriguez,Marcelo A. Perez,Jose I. Leon +8 more
TL;DR: This paper first presents a brief overview of well-established multilevel converters strongly oriented to their current state in industrial applications to then center the discussion on the new converters that have made their way into the industry.
Journal ArticleDOI
Multilevel Voltage-Source-Converter Topologies for Industrial Medium-Voltage Drives
TL;DR: This paper covers the high-power voltage-source inverter and the most used multilevel-inverter topologies, including the neutral-point-clamped, cascaded H-bridge, and flying-capacitor converters.
Journal ArticleDOI
The age of multilevel converters arrives
TL;DR: In this paper, the most relevant characteristics of multilevel converters, to motivate possible solutions, and to show that energy companies have to bet on these converters as a good solution compared with classic two-level converters.
Journal ArticleDOI
Multidimensional Modulation Technique for Cascaded Multilevel Converters
Jose I. Leon,Samir Kouro,Sergio Vazquez,R. Portillo,Leopoldo G. Franquelo,Juan Manuel Campos Carrasco,Jose Rodriguez +6 more
TL;DR: A simple and low-computational-cost modulation technique for multilevel cascaded H-bridge converters based on geometrical considerations considering a unidimensional control region to determine the switching sequence and the corresponding switching times is presented.
Journal ArticleDOI
Control and Performance of a Transformerless Cascade PWM STATCOM With Star Configuration
TL;DR: In this paper, a three-phase transformerless cascade PWM static synchronous compensator (STATCOM) is proposed for installation on industrial and utility power distribution systems, which devotes itself to meeting the demand of reactive power but also to voltage balancing of multiple galvanically isolated and floating dc capacitors.
References
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Proceedings ArticleDOI
Multilevel converters-a new breed of power converters
Jih-Sheng Lai,Fang Zheng Peng +1 more
TL;DR: This paper presents three multilevel voltage source converters: (1) diode-clamp, (2) flying-capacitors, and (3) cascaded-inverters with separate DC sources.
Journal ArticleDOI
A new multilevel PWM method: a theoretical analysis
TL;DR: In this article, a generalization of the Pulse Width Modulation (PWM) subharmonic method for controlling single-phase or three-phase multilevel voltage source inverters (VSIs) is considered.
Journal ArticleDOI
Hybrid multilevel power conversion system: a competitive solution for high power applications
TL;DR: In this article, the authors investigated a hybrid multilevel power conversion system for high performance, high power applications, which consists of a hybrid seven-level inverter, a diode bridge rectifier and an IGBT rectifier per phase.
Proceedings ArticleDOI
A general circuit topology of multilevel inverter
TL;DR: The proposedMultilevel inverter can realize any multilevel pulsewidth modulation (PWM) scheme which leads to harmonic reduction and provides full utilization of semiconductor devices like GTOs, especially in the high power range where high voltage can be applied.
Proceedings ArticleDOI
A non conventional power converter for plasma stabilization
TL;DR: In this article, a nonconventional converter with a peak power of 3.6 MVA and a bandwidth ranging from DC values up to 10 kHz for nuclear-fusion experiments is presented.