Investigation of the potential induced degradation of on-site aged polycrystalline PV modules operating in Malaysia

Islam, Mohammad Aminul and Hasanuzzaman, Md. and Rahim, Nasrudin Abd (2018) Investigation of the potential induced degradation of on-site aged polycrystalline PV modules operating in Malaysia. Measurement, 119. pp. 283-294. ISSN 0263-2241

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Official URL: https://doi.org/10.1016/j.measurement.2018.01.061

Abstract

On-site investigation of PID behavior of PV module has been carried out under typical Malaysian climate. A quantitative degradation measurement process of PV module through EL imaging has been introduced. PID has been observed only for the negative voltage stress in this p-type polycrystalline Si PV module. The negative end PV module degrades 42% due to 9 years field aging under a negative voltage stress from the 240 V string size. While positive end PV module is degraded near about 17% over the same period due to normal field aging. Shunt resistance of negative-end module has been found 75% lower than that of the positive-end module. Module crack propagation is found to be accelerated due to onsite cyclic high voltage stress. PID at higher string size has been estimated from the leakage current of brand new same PV module. The estimated PID of PV module under 600 V stress is 72.84%.

Item Type: Article
Uncontrolled Keywords: On-site PID; EL imaging; Aging effect; Shunt resistance; Leakage current
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > UM Power Energy Dedicated Advanced Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 05 Aug 2019 08:51
Last Modified: 05 Aug 2019 08:51
URI: http://eprints.um.edu.my/id/eprint/21797

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