Author, as appears in the article.: Haroun, Reham; El Aroudi, Abdelali; Cid-Pastor, Angel; Garica, Germain; Olalla, Carlos; Martinez-Salamero, Luis
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Cid Pastor, Angel / El Aroudi Chaoui, Abdelali / Haroun Mohamed Abdelkarim, Reham / Martínez Salamero, Luis / Olalla Martínez, Carlos
Keywords: Slidingmode control (smc) Photovoltaic (pv) systems Mppt Loss-free resistor (lfr) Impedance matching Cascaded boost converters
Abstract: Switching dc-dc converters are widely used to interface the dc output of renewable energy resources with power distribution systems in order to facilitate the use of energy at the customer side. In the case of residential photovoltaic (PV) applications, high conversion ratio is usually required, in order to adapt the low output voltages of PV modules to a dc bus voltage, while dealing with the appropriate impedance matching. In this paper, a system connected to a PV panel consisting of two cascaded dc-dc boost converters under sliding-mode control and working as loss-free resistors is studied. The modeling, simulation, and design of the system are addressed. First, an ideal reduced-order sliding-mode dynamics model is derived from the full-order switched model taking into account the sliding constraints, the nonlinear characteristic of the PV module, and the dynamics of the MPPT controller. For this model, a design-oriented averaged model is obtained and its dynamic behavior is analyzed showing that the system is asymptotically globally stable. Moreover, the proposed system can achieve a high conversion ratio with an efficiency close to 95% for a wide range of working power. Numerical simulations and experimental results corroborate the theoretical analysis and illustrate the advantages of this architecture in PV systems.
Thematic Areas: Interdisciplinar Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Ciências agrárias i Ciência da computação
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 08858993
Author's mail: reham.haroun@urv.cat angel.cid@urv.cat abdelali.elaroudi@urv.cat carlos.olalla@urv.cat
Author identifier: 0000-0002-8099-4281 0000-0001-8124-6210 0000-0001-9103-7762 0000-0001-8333-9840
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://ieeexplore.ieee.org/document/6855363
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Ieee Transactions On Power Electronics. 30 (6): 3185-3199
APA: Haroun, Reham; El Aroudi, Abdelali; Cid-Pastor, Angel; Garica, Germain; Olalla, Carlos; Martinez-Salamero, Luis (2015). Impedance matching in photovoltaic systems using cascaded boost converters and sliding-mode control. Ieee Transactions On Power Electronics, 30(6), 3185-3199. DOI: 10.1109/TPEL.2014.2339134
Article's DOI: 10.1109/TPEL.2014.2339134
Entity: Universitat Rovira i Virgili
Journal publication year: 2015
Publication Type: Journal Publications