Output feedback non-linear harmonic control of an industrial electric vehicle battery charger

For complying with power distributor regulation, the electric car chargers have to address the line current harmonic mitigation problem. The conventional solution is a proportional integral controller on the rectified current with a feed-forward anticipation action on the input network current. In this work we take advantage of a harmonic description of the electric car charger in order to propose a non-linear output feedback control based on sliding mode approach and Kalman filtering. The performance of the proposed control strategy is demonstrated via simulations realised in Matlab SimPowerSystems.