Journal ArticleDOI
A new cascaded multilevel H-bridge drive
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In this paper, a general structure for cascaded power converters is presented in which any number of H-bridge cells having any number voltage levels are series connected to form an inverter phase leg.Abstract:
In this paper, a general structure for cascaded power converters is presented in which any number of H-bridge cells having any number of voltage levels are series connected to form an inverter phase leg. Equations are introduced for determining an optimal voltage ratio of DC voltages for the H-bridge cells which will maximize the number of voltage levels obtainable resulting in high power quality. Special cases of the generalized inverter are presented including novel 11-level and 15-level inverters. Laboratory measurements demonstrate the proposed inverter performance.read more
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Journal ArticleDOI
Medium-Voltage Multilevel Converters—State of the Art, Challenges, and Requirements in Industrial Applications
TL;DR: An inverter configuration based on three-level building blocks to generate five-level voltage waveforms is suggested and it is shown that such an inverter may be operated at a very low switching frequency to achieve minimum on-state and dynamic device losses for highly efficient MV drive applications while maintaining low harmonic distortion.
Journal ArticleDOI
Hybrid Multilevel Converters: Unified Analysis and Design Considerations
TL;DR: A comparative analysis among various hybrid multilevel topologies is presented and some design considerations for distinct applications are proposed, constituting a useful basis for defining an adequate hybrid arrangement for any application.
Proceedings ArticleDOI
Control of cascaded multi-level inverters
TL;DR: In this paper, a multilevel inverter is introduced which is created by cascading two three-phase three-level inverters using the load connection, but requires only one dc voltage source.
Journal ArticleDOI
A New Topology of Cascaded Multilevel Converters With Reduced Number of Components for High-Voltage Applications
TL;DR: The proposed topology is based on a cascaded connection of single-phase submultilevel converter units and full-bridge converters and is optimized in order to utilize a minimum number of switches and dc voltage sources and produce a high number of output voltage steps.
Journal ArticleDOI
Extended Operation of Cascade Multicell Converters Under Fault Condition
Pablo Lezana,G. Ortiz +1 more
TL;DR: This paper presents the optimum angles and modulation indexes that must be used in order to obtain the maximum balanced load voltages and shows how this assumption is not always valid.
References
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Journal ArticleDOI
A New Neutral-Point-Clamped PWM Inverter
TL;DR: The neutral-point-clamped PWM inverter adopting the new PWM technique shows an excellent drive system efficiency, including motor efficiency, and is appropriate for a wide-range variable-speed drive system.
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.
Book
Analysis of Electric Machinery
TL;DR: In this paper, the authors focus on the areas of electric power and electric drives and emphasize analysis and formulation for control applications and computer simulation, and present an industry reference for these areas.
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 power line conditioner using cascade multilevel inverters for distribution systems
TL;DR: In this article, a power line conditioner (PLC) using a cascade multilevel inverter is presented for voltage regulation, reactive power (VAr) compensation and harmonic filtering.