Autor según el artículo: Valderrama-Blavi H, Rodríguez-Ramos E, Olalla C, Genaro-Muñoz X

Departamento: Enginyeria Electrònica, Elèctrica i Automàtica

Autor/es de la URV: Olalla Martínez, Carlos / Valderrama Blavi, Hugo

Palabras clave: Two cascaded-boosts converters Sliding mode control (smc), self-oscillating system Sliding mode control (smc) Self-oscillating system Power electronics Microinverter Design

Resumen: © 2019 by the authors. A comparative analysis of the dynamic features of a step-up microinverter based on the cascade connection of two synchronized boost stages and a full-bridge is presented in this work. In the conventional approach the output of the cascaded boost converter is a 350–400 DC voltage that supplies the full-bridge that makes the DC-AC conversion. Differently from the classical approach, in this work, the cascaded boost converter delivers a sinusoidal rectified voltage of 230 Vrms to the full-bridge converter that operates as unfolding stage. This stage changes the voltage sign of one of every two periods of the rectified sinusoidal signal providing the final output AC waveform. In contrast to a classical full-bridge inverter, the unfolding stage lacks output filter, and has zero order dynamics. Thus, the approach presented here implies a second order dynamics reduction that will be increased applying sliding motions to control the system. After introducing the inverter circuit, two sliding control alternatives, input current mode and pseudo-oscillating mode, are presented. Both alternatives are analyzed, simulated, and verified experimentally. Furthermore, detailed description of the microinverter power stage and control circuits are also given.

Áreas temáticas: Zootecnia / recursos pesqueiros Renewable energy, sustainability and the environment Interdisciplinar General computer science Fuel technology Engineering (miscellaneous) Engenharias iv Engenharias iii Engenharias ii Energy engineering and power technology Energy (miscellaneous) Energy & fuels Electrical and electronic engineering Economia Control and optimization Ciências ambientais Ciências agrárias i Ciência da computação Building and construction Biotecnología Biodiversidade Astronomia / física

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 19961073

Direcció de correo del autor: hugo.valderrama@urv.cat carlos.olalla@urv.cat

Identificador del autor: 0000-0003-2892-8209 0000-0001-8333-9840

Fecha de alta del registro: 2023-02-18

Volumen de revista: 12

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/1996-1073/12/19/3697

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Energies. 12 (19):

Referencia de l'ítem segons les normes APA: Valderrama-Blavi H, Rodríguez-Ramos E, Olalla C, Genaro-Muñoz X (2019). Sliding-Mode Approaches to Control a Microinverter Based on a Quadratic Boost Converter. Energies, 12(19), -. DOI: 10.3390/en12193697

DOI del artículo: 10.3390/en12193697

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2019

Tipo de publicación: Journal Publications