A comparative study of three types of grid connected photovoltaic systems based on actual performance

In this study, three photovoltaic (PV) systems are evaluated based on actual performance. The energy generation of three types of PV systems namely concentrating PV system (6 units 1 kWp), PV system with sun tracking flat (2 units 1 kWp) and fixed flat PV system (2 units 1 kWp) is analyzed in this r...

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Bibliographic Details
Published in:Energy conversion and management 2014-02, Vol.78, p.8-13
Main Authors: EFFENDY YA'ACOB, M, HIZAM, Hashim, KHATIB, Tamer, RADZI, M. Amran M
Format: Article
Language:English
Subjects:
Applied sciences
Arrays
Capacity factor
Energy
Equipments, installations and applications
Exact sciences and technology
Mathematical models
Natural energy
Photovoltaic cells
Photovoltaic conversion
Power efficiency
Solar cells
Solar energy
Sun
Tracking
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Summary:In this study, three photovoltaic (PV) systems are evaluated based on actual performance. The energy generation of three types of PV systems namely concentrating PV system (6 units 1 kWp), PV system with sun tracking flat (2 units 1 kWp) and fixed flat PV system (2 units 1 kWp) is analyzed in this research. Data analysis for ten consecutive months consisting of 12,190 samples of 15 min interval is done. The performance evaluation is done using energy yield, yield factor, capacity factor, power efficiency and PV array efficiency. Based on the experiment data, it is concluded that tracking flat PV system is the most suitable system for Malaysia in normal operation mode with average daily generation of 4.7 kW h (141 kW h as a monthly average), system efficiency of 11%, power efficiency of 85%, average daily yield factor of 2.3 kW h/kWp and capacity factor of 32%. This study also highlights the PV energy (EPV) models for each PV generators with respect to the environmental factors. The advantage of employing a tracking flat system as compared to the fixed flat system is considered based on the effectiveness of the dual-axis tracking mechanism tracking the sun for maximum power output.
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2013.10.064