WO2008017305A3 - Apparatus and method for investigating the current flow distribution in solar cells and solar modules - Google Patents

Apparatus and method for investigating the current flow distribution in solar cells and solar modules Download PDF

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Publication number
WO2008017305A3
WO2008017305A3 PCT/DE2007/001457 DE2007001457W WO2008017305A3 WO 2008017305 A3 WO2008017305 A3 WO 2008017305A3 DE 2007001457 W DE2007001457 W DE 2007001457W WO 2008017305 A3 WO2008017305 A3 WO 2008017305A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic field
current flow
flow distribution
solar cells
solar
Prior art date
Application number
PCT/DE2007/001457
Other languages
German (de)
French (fr)
Other versions
WO2008017305A2 (en
Inventor
Steffen Kuenanz
Markus Muench
Original Assignee
Solarwatt Ag
Steffen Kuenanz
Markus Muench
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Solarwatt Ag, Steffen Kuenanz, Markus Muench filed Critical Solarwatt Ag
Publication of WO2008017305A2 publication Critical patent/WO2008017305A2/en
Publication of WO2008017305A3 publication Critical patent/WO2008017305A3/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Abstract

The invention relates to an apparatus and a method for investigating the current flow distribution in solar cells and solar modules for defects. The object is to provide an apparatus and a method which in a short period of time provides an indication of defects and in addition provides their precise position. According to the invention, a current flow, self-excited or externally excited, is produced in the conductor tracks and contact-making or interconnection elements. A magnetic field of a certain level is formed around each conductor track and around the contact-making or interconnection elements. These magnetic fields are sensed and detected by means of magnetic field detectors. The current flow distribution at any point in one of the solar cells and solar modules to be tested can therefore be determined indirectly via the current produced and the magnetic field being formed. At the same time, the surface of magnetic field sensors is sampled. The magnetic field data determined by the magnetic field sensors are sensed precisely in terms of position and are buffer-stored by means of microcomputers. A precise image of the current flow distribution is produced from these magnetic field data, and this image can be displayed on conventional display media or outputted by means of suitable connected devices. The apparatuses and the method can be used to reduce the rejects quota for solar cells or plate-shaped solar modules in mass production.
PCT/DE2007/001457 2006-08-11 2007-08-10 Apparatus and method for investigating the current flow distribution in solar cells and solar modules WO2008017305A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006037586.6 2006-08-11
DE102006037586A DE102006037586A1 (en) 2006-08-11 2006-08-11 Device and method for investigating the flow distribution in solar cells and solar modules

Publications (2)

Publication Number Publication Date
WO2008017305A2 WO2008017305A2 (en) 2008-02-14
WO2008017305A3 true WO2008017305A3 (en) 2008-05-22

Family

ID=38973180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001457 WO2008017305A2 (en) 2006-08-11 2007-08-10 Apparatus and method for investigating the current flow distribution in solar cells and solar modules

Country Status (2)

Country Link
DE (1) DE102006037586A1 (en)
WO (1) WO2008017305A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010006074A1 (en) * 2010-01-28 2011-08-18 Sunfilm AG, 01900 Device for characterizing electrical characteristic e.g. photoelectric voltage, of light absorbing layer material of e.g. solar cell, has electrodes arranged at distance to layer material on side of layer material and capacitively coupled
EP2565657A1 (en) 2011-09-01 2013-03-06 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Apparatus for testing the interconnection of photovoltaic cells
CN104753462B (en) * 2015-04-15 2017-09-29 阿特斯阳光电力集团有限公司 Photovoltaic module fault detection method
DE102017202673A1 (en) * 2017-02-20 2018-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and device for localizing defects in solar modules in a solar module network
CN111565024A (en) * 2020-06-03 2020-08-21 华北电力大学 Solar cell panel fault detection and operation efficiency prediction device and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4440167A1 (en) * 1994-11-10 1996-08-29 Max Planck Gesellschaft Measuring lateral current distribution in semiconductor structural elements esp. photovoltaic solar cells
US20030122558A1 (en) * 2001-12-28 2003-07-03 Hacke Peter L. System and method for measuring photovoltaic cell conductive layer quality and net resistance
US20050252545A1 (en) * 2004-05-12 2005-11-17 Spire Corporation Infrared detection of solar cell defects under forward bias
EP1647827A1 (en) * 2004-10-16 2006-04-19 Manz Automation AG Test system for solar cells
WO2006076893A1 (en) * 2005-01-19 2006-07-27 Technische Fachhochschule Wildau Method and device for detection of defects in solar cell elements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4440167A1 (en) * 1994-11-10 1996-08-29 Max Planck Gesellschaft Measuring lateral current distribution in semiconductor structural elements esp. photovoltaic solar cells
US20030122558A1 (en) * 2001-12-28 2003-07-03 Hacke Peter L. System and method for measuring photovoltaic cell conductive layer quality and net resistance
US20050252545A1 (en) * 2004-05-12 2005-11-17 Spire Corporation Infrared detection of solar cell defects under forward bias
EP1647827A1 (en) * 2004-10-16 2006-04-19 Manz Automation AG Test system for solar cells
WO2006076893A1 (en) * 2005-01-19 2006-07-27 Technische Fachhochschule Wildau Method and device for detection of defects in solar cell elements

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
J.NIEMANN: "Better Solar Cell Testing: The Key to Faster Development and Production", June 2004 (2004-06-01), internet, pages 1 - 4, XP002472816, Retrieved from the Internet <URL:www.keithley.com/data?asset=15891> [retrieved on 20080313] *
NOVIKOV I L ET AL: "Cryocooler based hts squid photoscanning system", ELECTRON DEVICES AND MATERIALS, 2003. PROCEEDINGS. 4TH ANNUAL 2003 SIBERIAN RUSSIAN WORKSHOP ON JULY 1-4, 2003, PISCATAWAY, NJ, USA,IEEE, 1 July 2003 (2003-07-01), pages 95 - 100, XP010654375, ISBN: 5-7782-0412-4 *

Also Published As

Publication number Publication date
DE102006037586A1 (en) 2008-02-28
WO2008017305A2 (en) 2008-02-14

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