A New Asymmetric Cascaded Multilevel Converter Topology With Reduced Voltage Stress and Number of Switches

This paper presents a new structure of a multilevel inverter with fewer components, which is suitable for renewable energy sources and industrial loads applications. The structure has three unequal input sources and ten switches that can generate a 15-level output voltage. Furthermore, it can be con...

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Detalles Bibliográficos
Autores: Samanbakhsh, R. (Rahim)|||/items/722f75dd-fc08-4948-99f7-99ba20e635be, Ibanez, F.M. (Federico Martin)|||/items/fc057704-433b-4a52-9a00-1f8260fff0dc, Koohi, P. (Peyman)|||/items/a597fbcf-68f4-4ef7-b98a-7fd098647379, Martín-Porres, F. (Fernando)|||/items/d12c62da-73d2-455f-9bcf-60cf7f96165f
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad de Navarra
Repositorio:Dadun. Depósito Académico Digital de la Universidad de Navarra
Idioma:inglés
OAI Identifier:oai:dadun.unav.edu:10171/115912
Acceso en línea:https://hdl.handle.net/10171/115912
Access Level:acceso abierto
Palabra clave:Multilevel inverter
Cascading converters
Low harmonics
Losses
Distortion
Descripción
Sumario:This paper presents a new structure of a multilevel inverter with fewer components, which is suitable for renewable energy sources and industrial loads applications. The structure has three unequal input sources and ten switches that can generate a 15-level output voltage. Furthermore, it can be connected in cascade for increasing, even more, the number of levels and output voltage. The main feature of the proposed inverter is its very low harmonic distortion at the output voltage and current due to the control method, which is based on the nearest level control method for generating a high-quality output voltage. A typical application of this inverter is in solar cells and wind turbines. Both simulations in Matlab/Simulink and experimental results in a scaled-down prototype validate the proposed theoretical analysis.