Autor segons l'article: Olalla, Carlos; Deline, Christopher; Clement, Daniel; Levron, Yoash; Rodriguez, Miguel; Maksimovic, Dragan;
Departament: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/s de la URV: Olalla Martínez, Carlos
Paraules clau: Submodule-integrated converters (submics) Photovoltaic modules Partial shading Mismatch Equalization Differential power processing (dpp) Dc-dc converters Aging
Resum: Differential power processing (DPP) architectures employ distributed, low power processing, submodule-integrated converters to mitigate mismatches in photovoltaic (PV) power systems, while introducing no insertion losses. This paper evaluates the effects of the simple voltage-balancing DPP control approach on the submodule-level maximum power point (MPP) efficiency. It is shown that the submodule MPP efficiency of voltage-balancing DPP converters exceeds 98% in the presence of worst-case MPP voltage variations due to irradiance or temperature mismatches. Furthermore, the effects of reduced converter power rating in the isolated-port DPP architecture are investigated by long-term, high-granularity simulations of five representative PV system scenarios. For partially shaded systems, it is shown that the isolated-port DPP architecture offers about two times larger energy yield improvements compared to full power processing (FPP) module-level converters, and that it outperforms module-level FPP approaches even when the power rating of DPP converters is only 20-30% of the PV system peak power. In the cases of aging-related mismatches, more than 90% of the energy yield improvements are obtained with DPP converters rated at only 10% of the PV peak power.
Àrees temàtiques: Interdisciplinar Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Ciências agrárias i Ciência da computação
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: carlos.olalla@urv.cat
Identificador de l'autor: 0000-0001-8333-9840
Data d'alta del registre: 2024-02-24
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://ieeexplore.ieee.org/document/6776458
Referència a l'article segons font original: Ieee Transactions On Power Electronics. 30 (2): 618-631
Referència de l'ítem segons les normes APA: Olalla, Carlos; Deline, Christopher; Clement, Daniel; Levron, Yoash; Rodriguez, Miguel; Maksimovic, Dragan; (2015). Performance of Power Limited Differential Power Processing Architectures in Mismatched PV Systems. Ieee Transactions On Power Electronics, 30(2), 618-631. DOI: 10.1109/TPEL.2014.2312980
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.1109/TPEL.2014.2312980
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2015
Tipus de publicació: Journal Publications
Repositori URV