Research Information System
SIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES, vol.23, no.1, pp.53-67, 2005 (Peer-Reviewed Journal)
In this study, a multi-step optimization is performed for a directly-coupled PV pumping system. The optimization analysis has four-main-steps: i) formation of longterm (16 years, between 1985-2001) meteorological database in electronic format for Sanliurfa, which is selected as the application region, ii) determination of optimum monthly panel-tilt-angle, iii) determination of optimum solar radiation intensity interval by considering operating points of the PV pumping system, iv) optimizations of PV panel-number and PV array configuration by using a highly accurate statistical method, which provides less computer time and thus less computational cost.
Following the optimization, calculated values of PV panel power-output, pump water flow-rate, and system efficiency have stayed almost constant at the desired level for most part of the day and year. These results can be considered as a success for the optimization. The method outlined in this study has also another importance in a way that it can easily be applied to any region on the earth by following a similar mathematical procedure described here.