Direct coupling between a photovoltaic (PV) solar panel and a water pumping system driven by a permanent magnet dc motor is analyzed theoretically. The analysis is based on the simulated performance of a pumping system which consists of a Jacuzzi general purpose pump and a permanent magnet dc motor with selected characteristics. Hourly insolation data obtained from typical meteorological year SOLMET data are used in the simulation. A comparison between systems with and without a PV peak-power point tracker shows that a PV pumping system with peak-power tracker is more desirable because of its higher efficiency.
Indicative Technical Specifications Description |
Model I |
Model II |
Model III |
PV array |
900 Wp |
900 Wp |
900 Wp |
Motor pump set type |
1hp Submersible B.L.D.C. or A.C with electronic controller/ inverter |
1hp |
1hp Submersible B.L.D.C. or A.C. with electronic controller/ inverter |
Submersible B.L.D.C. or A.C. with electronic controller/ inverter |
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Max. Shut off head |
45 metres |
90 Metres |
120 Metres |
Module mounting structure |
MS hot dipped galvanised, three times manual tracking facilities |
MS hot dipped galvanised, three times manual tracking facilities |
MS hot dipped galvanised, three times manual tracking facilities |
Water Output* |
20,000 litres per day from a total dynamic head of 30 mtrs |
10,000 litres per day from a total dynamic head of 60 mtrs |
5,000 litres per day from a total dynamic head of 90 mtrs |
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