Eddy-Current Analysis Method for Non-Destructive Characterization of Electrical Contacts and Solder Joints in PV Modules

Publikation: KonferenzbeitragPosterBegutachtung


According to latest studies, cell and interconnection failures are to most common ones besides backsheet and
encapsulation issues in PV modules. Solder joints within the module, which are not meeting the target quality, often lead
to major issues after aging, comprising burn marks, hotspots, arcing discharges and of course substantial power losses.
Besides security and safety issues, such age-related effects can lead to major financial losses for manufacturers,
investors and plant owners. Within the Austrian flagship project “Sustainable Photovoltaics”, a non-destructive method
was developed for analyzing the quality of solder joints in PV modules (on site & in production line) using a multi
frequency eddy current approach. With the presented solution the conductivity of each solder joint can be analyzed,
enabling the possibility of early failure detection, and hence initiating possible repair approaches. This enables a solder
joint quality analysis without, unlike EL, directly powering the PV module.
PublikationsstatusVeröffentlicht - Dez. 2020
VeranstaltungÖsterreichische Fachtagung für Phototovoltaik und Stromspeicherung - online
Dauer: 2 Dez. 2020 → …


KonferenzÖsterreichische Fachtagung für Phototovoltaik und Stromspeicherung
Zeitraum2/12/20 → …

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