Control of a Photovoltaic Pumping System with BLDC Motor

The increasing demand for energy as well as the growing requirements for ecological conservation have led to the study and expansion of the use cleaner, unconventional and less environmentally friendly alternative energy sources. Photovoltaic energy is now used as a more valuable natural energy source, for it is free, plentiful, fresh and dispersed on Earth. The work aims to study an autonomous photovoltaic pumping system using a BLDC motor, a three-phase voltage inverter and a DC-DC zeta converter. The intelligent control of the zeta converter with the incremental conductance function (INC-MPPT) will track the maximum power point, while the algorithm will ensure a smooth start of the BLDC motor used to drive the centrifugal pump. The obtained simulation results confirm the efficiency and good performance of the BLDC motor.