Abstract
The paper has the objective to design a solar powered water pumping system employing a switched reluctance motor (SRM) and to analyse it’s performance using simulation. On comparison to other ac and dc motor drives, SRM possess several features like wide speed range, high power density, low inertia and quick response. This system comprises a modified SEPIC converter as an intermediate DC-DC converter, which provide high voltage gain with reduced stress. Incremental conductance algorithm helps to track maximum power from PV panel. The SRM is controlled by closed loop control with current and speed as feedback signals.The system is designed and simulated for 1.2kW water pumping system under various insolation levels. The results shows that the system is apt for SPV fed water pumping system. Simulation studies indicate that both the steady state and dynamic performances are found to be satisfactory under various test conditions.
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