Patent · US Active

Method and apparatus for testing photovoltaic modules

US9680412B2 · kind B2 · utility

5Cited by

0References

20Claims

0Family size

Assignee

SOLARZENTRUM STUTTGART GMBH · DE

Inventors

Liviu-Mihai Stoicescu · Stuttgart, DE
Michael Reuter · Oberursel, DE
Juergen Werner · Bruckmühl, DE

Key dates

Filing date	Feb 6, 2015
Grant date	Jun 13, 2017
Priority date	—
Expiry date	Jul 25, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/50
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and an apparatus for testing photovoltaic modules are provided, wherein power that a photovoltaic module outputs or draws is modulated a modulating frequency, the photovoltaic module is scanned using a camera and the camera signal generated by the camera is evaluated in order to obtain a luminescence image of the photovoltaic module which is used for detecting defects on the photovoltaic module. The photovoltaic module is operated only in the forward direction and the camera signal is evaluated using a digital filter, such as a lock-in filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.