METHODOLOGY FOR ASSESSMENT OF CHARACTERISTICS OF PV WATER PUMPING SYSTEMS USING A DC POWER SUPPLY
DOI:
https://doi.org/10.59627/cbens.2010.1556Keywords:
PV water pumping systems, PV systems, solar energy, rural electrificationAbstract
This article describes a methodology which was used to reduce the time required to perform experimental assessment of characteristic curves (flowrate vs. solar irradiance) of PV water pumping systems showing different configurations. The characteristic curves are proposed to be obtained from two other types of curves: flowrate vs. DC power – measured using a DC power supply adjusted to simulate the operation of the PV panel in the system, and DC power vs. solar irradiance – obtained through outdoors measurements using PV panels. It is demonstrated how is possible to reduce the number of days of outdoor measurements necessary for obtaining these curves when the systems under test show configurations using the same pumping heights or the same PV panels. The flowrates, thus also the daily pumped volumes, calculated using the curves obtained through this methodology are considered the upper limits of system performance.
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References
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