The Thermographic Research of the PV Arrays
23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3384-3387 : The production of the electric power in PV installations is determined by the solar irradiation in the plane of a PV array and by the temperature of PV modules. The high temperature re...
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| Format: | Text |
| Language: | English |
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WIP-Munich
2008
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.4229/23rdeupvsec2008-5bv.2.6 http://www.eupvsec-proceedings.com/proceedings?paper=2663 |
| Summary: | 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3384-3387 : The production of the electric power in PV installations is determined by the solar irradiation in the plane of a PV array and by the temperature of PV modules. The high temperature reduces the efficiency of photocells. It’s impossible to measure in a direct way the temperature of a photocell n-p junction inside the PV module. It can be made indirectly - with the use of a proper ESTI-type sensor. In common practice much cheaper PT100 temperature sensors assembled on the backside of PV modules are used. However, this solution has serious disadvantages. A PT100 sensor collates information about the PV cell temperature only in a separate point, and the durable connection of a sensor with the module causes the considerable growth of the temperature in a place of connection. Remote measurements with the use of a pyrometer or a thermographic camera turned out to be the good alternative for meeting requirements of temperature measurements. In this paper our first experiences with investigation of PV arrays with the use of VIGOcam V50 thermographic camera are presented. Researches were supported by a grant from Iceland, Liechtenstein and Norway through the EEA Grants, Project: PL 0081. |
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