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Abstract
Due to an integrated system structure between the Photovoltaic (PV) module and inverter, the characteristic of PV module can strongly influence the operating condition and loading of micro-inverters. The commercially available PV module has a certain variation in terms of power rating and voltage at the Maximum Power Point (MPP). Accordingly, the PV micro-inverter loading conditions, and thereby the reliability, will inevitably be affected by those variations. In this paper, the impact of PV module characteristic on the reliability of micro-inverters is investigated. Six commercial PV modules are used to demonstrate the variation in the PV module characteristic in real-field operation, and the mission profile of the installation site in Arizona is used as a case study. The evaluation results indicate that the voltage at the MPP of the PV module has a strong influence on the thermal loading and reliability of the micro-inverter. Employing a PV module with high voltage at the MPP can effectively reduce the loading of the micro-inverter, since the inverter efficiency is maintained at a high level during the operation. In that case, a high-reliable operation of the micro-inverters can be achieved.
Original language | English |
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Title of host publication | Proceedings of the 2018 IEEE 12th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG 2018) |
Number of pages | 6 |
Publisher | IEEE Press |
Publication date | Apr 2018 |
Pages | 1-6 |
ISBN (Print) | 978-1-5386-2509-5 |
ISBN (Electronic) | 978-1-5386-2508-8 |
DOIs | |
Publication status | Published - Apr 2018 |
Event | 12th International Conference on Compatibility, Power Electronics and Power Engineering - Doha, Qatar Duration: 10 Apr 2018 → 12 Apr 2018 |
Conference
Conference | 12th International Conference on Compatibility, Power Electronics and Power Engineering |
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Country/Territory | Qatar |
City | Doha |
Period | 10/04/2018 → 12/04/2018 |
Series | International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG). Proceedings. |
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ISSN | 2166-9538 |
Keywords
- Micro-inverters
- PV modules
- power devices
- lifetime
- reliability
- mission profile
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APETT: Advanced Power Electronic Technology and Tools
Blaabjerg, F., Munk-Nielsen, S., Iannuzzo, F., Wang, H., Uhrenfeldt, C., Beczkowski, S. M., Zhou, D., Choi, U., Jørgensen, A. B., Vernica, I., Sangwongwanich, A., Christensen, N., Ceccarelli, L., Nielsen, C. K., Bahman, A. S., Pedersen, K., Pedersen, K. B. & Kristensen, P. K.
01/01/2017 → 30/06/2021
Project: Research