PV Battery Charger Using an L3C Resonant Converter for Electric Vehicle

Abstract

In Electric Vehicles with rooftop PV panels, the solar irradiance and surface temperature can affect their performance and output voltages (e.g., V_pv = 24−45VDC). In these systems, the maximum energy must be extracted from the variable input voltage (PV panel), boosted by different gains, and stored in high voltage battery packs. Furthermore, depending on the battery state of charge, the charger should operate in constant voltage, constant current, or constant power modes, all the way from complete discharge condition, up to the charged floating voltage phase (V_bat = 230 − 430VDC).