Model Predictive Control of a Single Stage Power Factor Correction for Inductive Power Transfer Systems

Single-phase AC-DC inductive power transfer (IPT) converters are widely used in grid-connected systems, such as wireless electric vehicle (EV) chargers. Traditional two-stage topology with an AC-DC power factor correction (PFC) rectifier stage and a DC-DC IPT converter stage cannot achieve the highest overall efficiency and the lowest production cost. In this paper, the maximum usage of a high frequency inverter is provided in dynamic inductive power transfer applications by optimization of power factor (PF) considering the limitation of the inverter VA capability. In addition, a compact single- phase and single- stage AC-DC converter in the secondary side has presented. As salient feature, the control system does not need data transfer between the primary and the secondary sides to achieve its objectives. Also, in order to significantly increase the system dynamics, move blocking model-based predictive control is applied to secondary side PF correction converter. In order to evaluate the effectiveness of the introduced method under the critical conditions, it is assumed that the secondary-side operates out of resonant frequency, due to aging or failure issues. The simulation results confirm the desirable performance of the proposed topology.