Maximum Power Point Tracking Photovoltaic Fed Pumping System Based on PI Controller

Abstract

This paper presents a PI controller for DC voltage of a voltage source inverter that drives a BLDC motor based on a solar photovoltaic (SPV). Practically, this system is applied to a water pumping system. To consider the variation of the climate conditions, a maximum power point tracking MPPT technique used with PV solar systems to maximize power extraction. Moreover, the improvement of the solar panel efficiency is investigated by using perturb and observe maximum power point tracking (PO-MPPT) technique. A PI controller is used to improve the performance of dynamic BLDC responses. The operation of this technique is utilized to generate the duty ratio of MPP and tracks the solar PV panel. The PI controller is used to validate the speed of a BLDC motor by regulating the VSI input voltage. The model of the proposed system is developed in the Matlab / Simulink. The simulation results are demonstrated a suitable performance in various dynamic operating conditions.