Estudio del comportamiento de sistemas fotovoltaicos con optimizadores bajo condiciones de luminosidad desfavorable

Cebollada Álvarez, Virginia
Etherden, Nicholas (dir.)

Montañés Espinosa, Antonio Joaquín (ponente)

Universidad de Zaragoza, EINA, 2019
Ingeniería Eléctrica department, Ingeniería Eléctrica area

Máster Universitario en Ingeniería Industrial

Abstract: Total or partial shading conditions have a detrimental impact in the output energy of
photovoltaic (PV) systems and in the semiconductor materials PV technologies are made of.
Residential PV installations are very likely to be exposed to shade projected by nearby
objects such as buildings or neighboring trees. The electrical configuration of PV systems is
crucial to mitigate the shading effect, as it is the use of power optimizers. This study assesses
the shading impact on two different types of residential PV systems to verify gains associated
with SolarEdge optimizers and support product marketing. It aspires to help PV owners
select power inverters that maximize the annual energy produced. Experiments have been
performed simulating snow coverage and tree shading on a string-based system (Fronius)
and an optimizer-based system (SolarEdge). Findings demonstrated the decrease in losses
from partial shading conditions with power optimizers. SolarEdge optimizers reduce
shading power losses from 50% to 29% in comparison to a standard string system when
simulated snow coverage is applied. Results also showed that SolarEdge system decreased
tree shading losses from 17% to 13% in comparison to string-based system.

Tipo de Trabajo Académico: Trabajo Fin de Master

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