Solar PV Fed BLDC Motor Based Water Pump Under Partial Shading Conditions
A solar photovoltaic (SPV) powered brushless DC (BLDC) motor drive for water pumping is presented in this study. The current sensors of the BLDC motor and the voltage sensor at the DC bus of the voltage-source inverter (VSI) are eliminated completely. Instead, the speed is controlled by adjusting the DC bus voltage of VSI. The fundamental frequency switching pulses are generated to operate the VSI in order to minimize the switching losses and to enhance the efficiency of the proposed system. A DC-DC zeta converter is utilized to operate the SPV array at its maximum power. The starting current of the BLDC motor is bounded by an optimal initialization and selection of the control parameters, perturbation size, and frequency while tracking the peak power of the SPV array. The performance of the proposed BLDC motor drive is thoroughly evaluated and its potential is demonstrated under realistic operating conditions. The simulated results and comparison of Hybrid PO-PSO, PO, and PSO MPPT are presented in this video.