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Abstract
Being able to monitor early signs of PV module degradation, is needed to ensure stable power production throughout the service life of a PV installation. Recently, impedance spectroscopy is proven to be a useful tool for detection of the presence and location of significant errors, and may have potential for more. In this work we describe a field test design where the modules are operating at their maximum power point, and via relays is switched out one by one for acquisition of an IV curve and an impedance spectrum. Some of the modules involved will undergo stimuli to accelerate certain degradation mechanisms, and fitting parameters extracted from the field test will be correlated with irradiance and compared to similar parameters of virgin modules of same kind, and conventional laboratory measurements on the same modules. The proposed method will provide data for exploration of early degradation signs using impedance measurements.
Original language | English |
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Title of host publication | Proceedings of 43rd IEEE Photovoltaic Specialists Conference (PVSC), 2016 |
Number of pages | 3 |
Publisher | IEEE Press |
Publication date | Jun 2016 |
Pages | 1608-1610 |
ISBN (Electronic) | 978-1-5090-2724-8 |
DOIs | |
Publication status | Published - Jun 2016 |
Event | 43rd IEEE Photovoltaic Specialist Conference - Portland, United States Duration: 5 Jun 2016 → 10 Jun 2016 http://www.ieee-pvsc.org/PVSC43/ |
Conference
Conference | 43rd IEEE Photovoltaic Specialist Conference |
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Country/Territory | United States |
City | Portland |
Period | 05/06/2016 → 10/06/2016 |
Internet address |
Keywords
- Impedance
- Degradation
- Impedance measurement
- Temperature measurement
- Circuit faults
- Current measurement
- Monitoring
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Dive into the research topics of 'Novel field test design for acquisition of DC and AC parameters during service'. Together they form a unique fingerprint.Projects
- 1 Finished
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Fast localization and characterization of faults in solar cell systems
Séra, D. & Oprea, M.
01/11/2015 → 31/03/2016
Project: Research