Active Power Decupling Strategy for Integrated Single-Phase Charging System of EVs with Dual-Battery

A single-phase integrated charging topology is reconstructed based on the open winding permanent magnet synchronous motor (OW-PMSM) driving system with isolated bus, where the dual battery could be charged independently to achieve the unbalanced power regulation for new energy electric vehicles. In order to mitigate the secondary voltage ripple of the DC link and the torque ripple generated by the multiplex windings, an active power decoupling strategy is proposed to achieve the active power filtering and torque ripple suppressing. Finally, the effectiveness of the proposed topology and control strategy was verified through both simulation and experimental results.