CPC H02K 21/042 (2013.01) [H02K 1/223 (2013.01); H02P 21/22 (2016.02); H02P 25/098 (2016.02)] | 20 Claims |
1. A method of controlling an electric machine, the method comprising:
energizing stator windings of a stator of the electric machine by a stator current;
producing a stator magnetic field within the stator by the energized stator windings;
producing a corresponding rotor magnetic field within a ferromagnetic material within a rotor of the electric machine by the stator magnetic field, the rotor defining multiple rotor poles;
generating a force tangential to the rotor by a shift in the stator magnetic field;
moving the rotor by the generated force tangential to the rotor;
resisting a decay of a magnetic flux within the rotor by current within rotor coils in response to the shift in the stator magnetic field, wherein the stator magnetic field and the rotor maintain synchronicity with one another during operation of the electric machine; and
achieving a target operational output of the electric machine.
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