Impact of Reactive Power Injection Outside Feed-In Hours on the Reliability of Photovoltaic Inverters

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

5 Citationer (Scopus)
56 Downloads (Pure)

Abstrakt

Current energy paradigm of mixed renewables seems to urgently require reactive power provision at various feed-in points of the utility grid. Photovoltaic (PV) inverters are able to provide reactive power in a decentralized manner at the grid-connection point even outside active power feed-in operation, especially at night. This serves as a motivation for utilizing the PV inverters at night for reactive power compensation. Thus, a detailed analysis on the impact of reactive power injection by PV inverters outside feed-in operation on the thermal performance and also the reliability is performed in this paper. A thermal analysis based on the mission profile (i.e. solar irradiance and ambient temperature) has been incorporated, so as to determine the additional temperature rise in the components (IGBTs and diodes) outside feed-in operation for different values of reactive power injection. Consequently, the analysis enables the translation from long-term mission profiles to device thermal loading, considering the operation at night. An analytical lifetime model is then used for lifetime quantization based on the Palgrem Miner rule. Thereafter, considering the lifetime reduction of the PV inverter for different values of reactive power injection an assessment of the economic impacts is made. This analysis can be useful in choosing between conventional reactive power devices or PV inverters for injecting reactive power to the grid.
OriginalsprogEngelsk
TitelProceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015
Antal sider8
ForlagIEEE Press
Publikationsdato24 jun. 2015
Sider89-96
ISBN (Trykt)978-1-4799-8586-9
DOI
StatusUdgivet - 24 jun. 2015
BegivenhedIEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015 - Pullman Aachen Quellenhof hotel, Aachen, Tyskland
Varighed: 22 sep. 201525 sep. 2015

Konference

KonferenceIEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015
LokationPullman Aachen Quellenhof hotel
LandTyskland
ByAachen
Periode22/09/201525/09/2015

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  • Projekter

    Center Of Reliable Power Electronics (CORPE)

    Blaabjerg, F., Munk-Nielsen, S., Pedersen, K. & Popok, V.

    01/04/201131/12/2016

    Projekter: ProjektForskning

    Citationsformater

    Anurag, A., Yang, Y., & Blaabjerg, F. (2015). Impact of Reactive Power Injection Outside Feed-In Hours on the Reliability of Photovoltaic Inverters. I Proceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015 (s. 89-96). IEEE Press. https://doi.org/10.1109/PEDG.2015.7223032