CPC H02K 11/30 (2016.01) [H02K 1/12 (2013.01); H02K 1/22 (2013.01); H02K 11/20 (2016.01)] | 16 Claims |
1. An electric drive unit, comprising:
a stator configured to produce a stator magnetic field,
at least a first rotor including first rotor windings,
at least a first inverter electrically connected with the first rotor windings and configured to produce an electric current in the first rotor windings for producing a first rotor magnetic field,
a second rotor including second rotor windings, the second rotor windings including multi-phase windings,
a second inverter electrically connected with the second rotor windings and configured to produce an electric current in the second rotor windings for producing a second rotor magnetic field, and
a third inverter,
wherein the stator magnetic field is configured to interact with the first rotor magnetic field to exert a torque on the first rotor, wherein the first rotor windings include multi-phase windings, wherein the stator magnetic field is configured to interact with the second rotor magnetic field to exert a torque on the second rotor, wherein the stator includes stator windings, the stator windings including multi-phase windings, wherein the third inverter is electrically connected with the stator windings and configured to produce an electric current in the stator windings for producing the stator magnetic field, wherein the first inverter includes a low voltage inverter, wherein the third inverter includes a high voltage inverter, and wherein a maximum operating voltage of the high voltage inverter is greater than a maximum operating voltage of the low voltage inverter.
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