Design And Implementation of Maximum Power Point Tracking (MPPT) Controller for PV Water Pumpin

Abstract

This paper presents an affordable solution for water extraction in remote regions through a photovoltaic water pumping system equipped with maximum power point tracking (MPPT). The MPPT algorithm optimizes power extraction from PV panels, enhancing battery charging efficiency. A DC-DC converter within the MPPT compares PV module voltages to battery voltage, ensuring optimal power utilization. MATLAB simulations validate the DC-DC converter design and hardware implementation. The system comprises a microcontroller (ESP32), sensors, synchronous buck converter, USB-TTL UART, line buck regulators, PV panel, and battery, with all circuitry programmed within the microcontroller. To ensure peak efficiency, the system will employ the Maximum Power Point Tracking (MPPT) algorithm for control. The DC-to-DC converter model will be programmed in MPPT mode, utilizing an optimal duty ratio to attain maximum output. The proposed systems' portable design provides users with significant advantages. Furthermore, its eco-friendly nature, coupled with battery backup and cost-effectiveness, enhances its appeal.