Implementation of Adaptive Supervisory Control for PV-Integrated Hybrid EV Charger

This paper presents a renewable integrated Level- I multi-port EV charger to operate in both slow and fast charging operations. The hybrid EV charger provides a dedicated bi-directional charging port facility for EV slow charging operation and a LLC-based resonant charger for uni-directional fast charging operation. A double stage photo-voltaic (PV) array with bi-directional battery storage unit is also integrated into the off-board charging facility in order to carry out standalone operation with minimal grid support. The present charging architecture is modular in configuration and suitable to be installed at small scale commercial facility. A resonant controlled front-end architecture with non-linear phase estimation algorithm is implemented in the EV charging architecture to get rid of utility level harmonic disturbances with enhanced power factor operation. The integrated control architecture is robust to different grid operating conditions and adaptively maintains the multi-port charging operation through a fixed DC link voltage control. The control operation is designed and developed in MATLAB and the Simulink platform to verify charging swiftness at different grid abnormalities.