Sleeve rotor synchronous reluctance electric machine
View Patent ↗According to various embodiments, a synchronous reluctance machine is disclosed. The synchronous reluctance machine includes a stator, a synchronous reluctance rotor disposed within the stator and configured to rotate relative to the stator, and a non-magnetic sleeve disposed circumferentially around the rotor, where sleeve thickness is between about 1 mm and 2 mm and an air-gap radius is between about 80 mm and 100 mm.
1. A synchronous reluctance machine, comprising:
a stator;
a synchronous reluctance rotor disposed within the stator and configured to rotate relative to the stator; and
a non-magnetic sleeve disposed circumferentially around the rotor, wherein sleeve thickness is between about 1 mm and 2 mm and an air-gap radius is between about 80 mm and 100 mm.
2. The synchronous reluctance machine of claim 1 , wherein the sleeve comprises carbon fiber or Inconel.
3. The synchronous reluctance machine of claim 1 , wherein an intermediate layer of fibers of the sleeve is arranged in an axial direction for every nine layers arranged in a circumferential direction.
4. The synchronous reluctance machine of claim 1 , wherein the machine is configured to provide maximum power at a top speed of about 14,000 rpm.
5. The synchronous reluctance machine of claim 1 , wherein the rotor further comprises rounded corners for each bridge.
6. The synchronous reluctance machine of claim 1 , wherein the rotor further comprises a plurality of non-conductive wedges disposed in an outer center section of each rotor pole.
7. A traction motor comprising:
a stator;
a synchronous reluctance rotor disposed within the stator and configured to rotate relative to the stator; and
a non-magnetic sleeve retained circumferentially around the rotor, wherein sleeve thickness is between about 1 mm and 2 mm and an air-gap radius is between about 80 mm and 100 mm.
8. The traction motor of claim 7 , wherein the sleeve comprises carbon fiber or Inconel.
9. The traction motor of claim 7 , wherein an intermediate layer of fibers of the sleeve is arranged in an axial direction for every nine layers arranged in a circumferential direction.
10. The traction motor of claim 7 , wherein the traction motor is configured to provide maximum power at a top speed of about 14,000 rpm.
11. The traction motor of claim 7 , wherein the rotor further comprises rounded corners for each bridge.
12. The traction motor of claim 7 , wherein the rotor further comprises a plurality of non-conductive wedges disposed in an outer center section of each rotor pole.
13. A synchronous reluctance machine, comprising:
a stator;
a rotor disposed within the stator and configured to rotate relative to the stator; and
a sleeve disposed circumferentially around the rotor, the sleeve comprising a plurality of layers of fibers arranged such that an intermediate layer of fibers is arranged in an axial direction for every one or more layers of fibers arranged in a circumferential direction.
14. The synchronous reluctance machine of claim 13 , wherein the intermediate layer of fibers is arranged in an axial direction for every nine layers of fibers arranged in a circumferential direction.
15. The synchronous reluctance machine of claim 13 , wherein the sleeve comprises carbon fiber or Inconel.
16. The synchronous reluctance machine of claim 13 , wherein the machine is configured to provide maximum power at a top speed of about 14,000 rpm.
17. The synchronous reluctance machine of claim 13 , wherein an air-gap radius is between about 80 mm and 100 mm.
18. The synchronous reluctance machine of claim 13 , wherein sleeve thickness is between about 1 mm and 2 mm.
19. The synchronous reluctance machine of claim 13 , wherein the rotor further comprises rounded corners for each bridge.
20. The synchronous reluctance machine of claim 13 , wherein the rotor further comprises a plurality of non-conductive wedges disposed in an outer center section of each rotor pole.