Volume : 12, Issue : 4, APR 2026

SOLAR POWER BASED MAXIMUM POWER POINT TRACKING SYSTEM USING SEPIC CONVERTER

M.UMA KAMESWARI*, L RINUSHA, P. TANUJA, G BHARATH KUMAR, B BALAKRISHNA

Abstract

This paper presents the design and implementation of a solar power-based Maximum Power Point Tracking (MPPT) system using a SEPIC (Single-Ended Primary Inductor Converter). Photovoltaic (PV) systems exhibit nonlinear characteristics, and their maximum power point varies with environmental conditions such as solar irradiation and temperature. To ensure optimal energy extraction, an MPPT technique is employed. In this work, a microcontroller-based control system is used to generate PWM signals for driving the SEPIC converter, enabling both step-up and step-down voltage regulation. The proposed system maintains a constant output voltage irrespective of variations in solar input. The implementation includes voltage sensing, embedded control, and real-time monitoring using an LCD interface. The results demonstrate improved efficiency and reliable performance under varying operating conditions.

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IESRJ

International Educational Scientific Research Journal

E-ISSN: 2455-295X

International Indexed Journal | Multi-Disciplinary Refereed Research Journal

ISSN: 2455-295X

Peer-Reviewed Journal - Equivalent to UGC Approved Journal

Peer-Reviewed Journal

Article No : 18

Number of Downloads : 31

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