An Effective Solar Powered Charging System Using Resonant LCC Boost Converter

Abstract

This paper proposes a solar-powered charging system that integrates a Resonant LCC (Inductor-Capacitor-Capacitor) Converter with a Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT) algorithm for efficient energy harvesting from Photovoltaic (PV) cells. The key innovation lies in utilizing the MPPT output duty cycle to control the photovoltaic (PV) power flow effectively by generating two distinct duty cycles within an H-bridge configuration of MOSFETs. An in-depth analysis of the IV (Current-Voltage) and PV (Power-Voltage) curves reveals the system's key characteristics, while the LCC resonant converter facilitates wider operating voltage range through efficient DC-DC conversion. This combined approach results in a high-performance, versatile solar charging system suitable for diverse applications. The system delivers a steady output voltage of either 48.39 V, 96.92 V, and 182.27 V, corresponding to power outputs of 262.75 W, 1055.46 W, and 3732.89 W, respectively, achieved at varying turns ratios of 1:1,1:2, and 1:4.