PV Panel and PV Inverter Damages Caused by Combination of Edge Delamination, Water Penetration, and High String Voltage in Moderate Climate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00346479" target="_blank" >RIV/68407700:21230/21:00346479 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41310/21:85008

Výsledek na webu

<a href="https://doi.org/10.1109/JPHOTOV.2021.3050984" target="_blank" >https://doi.org/10.1109/JPHOTOV.2021.3050984</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/JPHOTOV.2021.3050984" target="_blank" >10.1109/JPHOTOV.2021.3050984</a>

Jazyk výsledku

angličtina

Název v původním jazyce

PV Panel and PV Inverter Damages Caused by Combination of Edge Delamination, Water Penetration, and High String Voltage in Moderate Climate

Popis výsledku v původním jazyce

There exist over 2 GW of photovoltaic (PV) systems in the Czech Republic, exposed to moderate continental climate. Although there exist many PV modules defects, thanks to the generallythe same production year 2009, only some ofthem are usual at systems installed in Czech Republic. This work shows delamination failures that are frequent in moderate climate conditions. Special account istaken into edge delamination defect and its possible propagation in modules of standard construction. Combined PV panel and PV inverter failure is caused by edge delamination with water penetration and high string voltage. The electric discharge channel is created between the string of solar panels and the grounded PV panel frames. The result of the discharge channel created because of edge delamination is inverter switch-OFF and few months later total destruction of the inverter because of protective relay damage. The number of combined PV panel and PV inverter failures is increasing substantially after ninth year of operation of PV panels in moderate climate. Additional sealing of the PV panel frames by transparent polysiloxane gel reduced the number of combined PV panel and PV inverter failures very substantially.

Název v anglickém jazyce

PV Panel and PV Inverter Damages Caused by Combination of Edge Delamination, Water Penetration, and High String Voltage in Moderate Climate

Popis výsledku anglicky

There exist over 2 GW of photovoltaic (PV) systems in the Czech Republic, exposed to moderate continental climate. Although there exist many PV modules defects, thanks to the generallythe same production year 2009, only some ofthem are usual at systems installed in Czech Republic. This work shows delamination failures that are frequent in moderate climate conditions. Special account istaken into edge delamination defect and its possible propagation in modules of standard construction. Combined PV panel and PV inverter failure is caused by edge delamination with water penetration and high string voltage. The electric discharge channel is created between the string of solar panels and the grounded PV panel frames. The result of the discharge channel created because of edge delamination is inverter switch-OFF and few months later total destruction of the inverter because of protective relay damage. The number of combined PV panel and PV inverter failures is increasing substantially after ninth year of operation of PV panels in moderate climate. Additional sealing of the PV panel frames by transparent polysiloxane gel reduced the number of combined PV panel and PV inverter failures very substantially.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Journal of Photovoltaics

ISSN

2156-3381

e-ISSN

2156-3403

Svazek periodika

11

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

561-565

Kód UT WoS článku

000621413300041

EID výsledku v databázi Scopus

2-s2.0-85100460680