Author, as appears in the article.: El Aroudi, Abdelali; Al-Numay, Mohamed; Garcia, Germain; Al Hossani, Khalifa; Al Sayari, Naji; Cid-Pastor, Angel
Department: Enginyeria Electrònica, Elèctrica i Automàtica
e-ISSN: 1996-1073
URV's Author/s: Cid Pastor, Angel / El Aroudi Chaoui, Abdelali
Keywords: 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
Abstract: © 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.
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: angel.cid@urv.cat; abdelali.elaroudi@urv.cat
Record's date: 2025-01-28
Journal volume: 12
Paper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.mdpi.com/1996-1073/12/1/61
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Paper original source: Energies. 12 (1): 61-
APA: El Aroudi, Abdelali; Al-Numay, Mohamed; Garcia, Germain; Al Hossani, Khalifa; Al Sayari, Naji; Cid-Pastor, Angel (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), 61-. DOI: 10.3390/en12010061
Article's DOI: 10.3390/en12010061
Entity: Universitat Rovira i Virgili
Journal publication year: 2019
Publication Type: Journal Publications
Repositori URV