Author, as appears in the article.: Valderrama-Blavi, Hugo; Rodriguez-Ramos, Ezequiel; Olalla, Carlos; Genaro-Munoz, Xavier
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Olalla Martínez, Carlos / Valderrama Blavi, Hugo
Keywords: Two cascaded-boosts converters Sliding mode control (smc), self-oscillating system Sliding mode control (smc) Self-oscillating system Power electronics Microinverter Design
Abstract: © 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.
Thematic Areas: Zootecnia / recursos pesqueiros Renewable energy, sustainability and the environment Renewable energy, sustainability and the environm 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
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 19961073
Author's mail: carlos.olalla@urv.cat hugo.valderrama@urv.cat
Author identifier: 0000-0001-8333-9840 0000-0003-2892-8209
Record's date: 2024-10-12
Journal volume: 12
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.mdpi.com/1996-1073/12/19/3697
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Energies. 12 (19): 3697-
APA: Valderrama-Blavi, Hugo; Rodriguez-Ramos, Ezequiel; Olalla, Carlos; Genaro-Munoz, Xavier (2019). Sliding-Mode Approaches to Control a Microinverter Based on a Quadratic Boost Converter. Energies, 12(19), 3697-. DOI: 10.3390/en12193697
Article's DOI: 10.3390/en12193697
Entity: Universitat Rovira i Virgili
Journal publication year: 2019
Publication Type: Journal Publications
Repositori URV