Integration of wind energy with a single-ended primary inductor converter and a brushless DC motor for water pumping system

Hassan Abdi Abi (Jamhuriya University of Science and Technology)
Abdullahi Mohamed Isak (Jamhuriya University of Science and Technology)
Suleiman Abdullahi Ali (Jamhuriya University of Science and Technology)
Yakub Hussein Mohamed (Jamhuriya University of Science and Technology)
Sowdo Mursal Abdi (Jamhuriya University of Science and Technology)
Abdirisakh Khalif Osman (Jamhuriya University of Science and Technology)

International Journal of Power Electronics and Drive Systems (IJPEDS)
Vol 17, No 2: June 2026

This paper explores a simulation-based study on a renewable energy system that integrates wind energy with a single-ended primary inductor converter (SEPIC) to drive a brushless DC (BLDC) motor for water pumping applications. The proposed system addresses the challenge of regulating the variable output of wind turbines by employing a SEPIC converter to provide a stable direct current (DC) voltage supply to the BLDC motor. The novelty of this work lies in the combined modeling and performance analysis of the wind turbine, SEPIC converter, BLDC motor, and electronic commutation in MATLAB/Simulink, optimized for energy-efficient off-grid pumping. Simulation results demonstrate that the SEPIC converter effectively stabilizes the wind-generated voltage, ensuring reliable motor operation under varying wind conditions. The proposed system exhibits high efficiency, stable dynamic response, and low maintenance requirements, making it a practical solution for water pumping in wind-rich regions where solar irradiance is limited, particularly for off-grid water pumping applications.