Bi-Directional Power Flow Water Pumping Using UVT Generation Technique

Abstract: By considering the limitation of the conventional energy resources, renewable energy plays a dominant role today. An innovator water pumping system is proposed to ensure the bi-directional power flow either from a single-phase ac supply or from a Photo Voltaic system to feed a three phase BLDC motor. One of the biggest benefits of this project is the continued water availability. A Brushless Dc Motor (BLDC) drive without phase current sensors are used here. The system utilises a Voltage Source Inverter (VSI) which can draw power either from a solar energy or sinlge phase ac supply to drives BLDC motor drive. A single- phase Voltage Source Converter (VSC) with Unit Vector Template generation (UVT) technique makes the system Bi-directional. To reduce the switching loss VSI is operated at the fundamental frequency. Maximum power can be achieved by PV panel with the help of MPPT. The above system is corroborate in different platform. Here it is completed with MATLAB/Simulink.

Keywords: PV Panel, DC-DC Boost converter, BLDC motor drives, VSI, UVT generation technique.