Autor según el artículo: El Aroudi A; Al-Numay M; Garci G; Al Hossani K; Al Sayari N; Cid-Pastor A

Departamento: Enginyeria Electrònica, Elèctrica i Automàtica

e-ISSN: 1996-1073

Autor/es de la URV: Cid Pastor, Angel / El Aroudi Chaoui, Abdelali

Palabras clave: Subharmonic oscillations Stability Quadratic boost Photovoltaic systems Photovoltaic (pv) Nonlinear dynamics Mppt Maximum power point tracking (mppt) nonlinear dynamics Maximum power point tracking (mppt) Dc-dc converters

Resumen: © 2019 MDPI AG. All rights reserved. In this paper, the nonlinear dynamics of a PV-fed high-voltage-gain single-switch quadratic boost converter loaded by a grid-interlinked DC-AC inverter is explored in its parameter space. The control of the input port of the converter is designed using a resistive control approach ensuring stability at the slow time-scale. However, time-domain simulations, performed on a full-order circuit-level switched model implemented in PSIM c software, show that at relatively high irradiance levels, the system may exhibit undesired subharmonic instabilities at the fast time-scale. A model of the system is derived, and a closed-form expression is used for locating the subharmonic instability boundary in terms of parameters of different nature. The theoretical results are in remarkable agreement with the numerical simulations and experimental measurements using a laboratory prototype. The modeling method proposed and the results obtained can help in guiding the design of power conditioning converters for solar PV systems, as well as other similar structures for energy conversion systems.

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: abdelali.elaroudi@urv.cat angel.cid@urv.cat

Identificador del autor: 0000-0001-9103-7762 0000-0001-8124-6210

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/1996-1073/12/1/61

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

Referencia al articulo segun fuente origial: Energies. 12 (1):

Referencia de l'ítem segons les normes APA: El Aroudi A; Al-Numay M; Garci G; Al Hossani K; Al Sayari N; Cid-Pastor A (2019). Analysis of nonlinear dynamics of a quadratic boost converter used for maximum power point tracking in a grid-interlinked PV system. Energies, 12(1), -. DOI: 10.3390/en12010061

DOI del artículo: 10.3390/en12010061

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2019

Tipo de publicación: Journal Publications