Operation method for AC grid powered PMSM with open-end winding in dual-inverter topology for power factor maximization

The paper proposes a new operation method of permanent magnet synchronous machines in single phase AC grids by using a dual-inverter topology. The proposal is targeting on the reduction of current harmonics and maximization of the power factor of the drive system. This can be achieved without additional energy storing inductors, like filter or PFC-chokes. This new operation method can be considered as a combination of an active PFC and inverter operation.