PI controller design for MPPT of photovoltaic system supplying SRM via BAT search algorithm

Maximum power point tracking (MPPT) is used in photovoltaic (PV) systems to maximize its output power. This paper introduces a new MPPT control design to PV system supplied switched reluctance motor (SRM) based on PI controller. The developed PI controller is used to reach MPPT by monitoring the voltage and current of the PV array and adjusting the duty cycle of the DC/DC converter. The design task of MPPT is formulated as an optimization problem which is solved by BAT algorithm to search for optimal parameters of PI controller. Simulation results have shown the validity of the suggested technique in delivering MPPT to SRM under atmospheric conditions. Also, the performance of the developed BAT algorithm is compared with particle swarm optimization for various disturbances to confirm its robustness.