![]() The proposed water pumping system is designed and modelled such that the performance is not affected under dynamic conditions. An appropriate control of zeta converter through the proportionate integral maximum power point tracking (PI-MPPT) algorithm offers soft starting of the BLDC motor. The speed is controlled through a variable DC link voltage of VSI. No additional control or circuitry is used for speed control of the BLDC motor. The proposed control algorithm eliminates phase current sensors and adapts a fundamental frequency switching of the voltage source inverter (VSI), thus avoiding the power losses due to high frequency switching. A zeta converter is utilized in order to extract the maximum available power from the SPV array. This paper proposes a simple, cost effective and efficient brushless DC (BLDC) motor drive for solar photovoltaic (SPV) array fed water pumping system. ![]()
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