Analog One-Cycle Control Based Scheme for Battery Charging in Photovoltaic Systems

In recent years, the use of photovoltaic systems has getting more attention because radiation is converted directly into electricity without the use of inverters. A major scientific challenge in this theme consists of clean energy storage systems, widely researched for charging electric vehicles (EVs). Batteries are one of the most common ways to store the generated energy directly from photovoltaic systems. Current literature proposes several challenges in charging batteries using photovoltaic systems, especially when it comes to increasing their lifetime, since sudden changes in irradiation cause voltage overshoots in the batteries. This article presents a control strategy based in One-Cycle Control to prevent damages in the batteries adapting its voltage to varying input voltages. The main purpose of this paper is to present applicability of One-Cycle Control based control scheme used for battery charging. The experimental results present the power and controller signal analysis in steady state conditions.