Stator-arrangement
View Patent ↗A stator-arrangement for a generator is disclosed. The stator arrangement includes a plurality of stator segments. Each of the plurality of stator segments includes at least one stator winding and is adapted to build a ring-shaped stator when assembled. At least one cooling means is provided with each of the plurality of stator segments.
1. A stator-arrangement for a generator, comprising:
a plurality of stator segments, each of the plurality of stator segments comprising a plurality of radial portions attached to one another, the plurality of radial portions includes a first radial portion and a second radial portion,
a first radial portions comprising at least one stator winding; and
a second radial portion comprising at least one cooling means,
wherein the plurality of stator segments are attached to build a ring-shaped stator.
2. The stator-arrangement according to claim 1 , wherein the cooling means is at least partly integrated into the stator segment or is attached to the stator segment.
3. The stator-arrangement according to claim 2 , wherein the cooling means is fully integrated into the stator segment.
4. The stator-arrangement according to claim 1 , wherein the cooling means is attached to the stator segment.
5. The stator-arrangement according to claim 4 , wherein the attachment of the cooling means is provided by fastening means and/or by a thermally conductive material.
6. The stator-arrangement according to claim 1 , wherein at least the end windings of each of the plurality of stator segment and the cooling means are at least partially encapsulated by a thermally conductive material.
7. The stator-arrangement according to claim 6 , wherein the thermally conductive material is a thermally conductive resin.
8. The stator-arrangement according to claim 1 , wherein the cooling means is a duct-like pipe.
9. The stator-arrangement according to claim 6 , wherein the duct-like pipe has a meander-like shape.
10. The stator-arrangement according to claim 9 , wherein the duct-like pipe is disposed in the longitudinal direction and the bends of the meander-like shaped duct-like pipe are disposed near the end windings of the stator segment.
11. The stator-arrangement according to claim 9 , wherein the bends of the meander-like shaped duct-like pipe longitudinally extend outside the stator segment.
12. The stator-arrangement according to claim 8 , wherein the duct-like pipe comprises at least one inlet and at least one outlet for connecting with a cooling liquid providing cooling system.
13. The stator-arrangement according to claim 1 , wherein each of the plurality of stator segments comprises at least two electrical connectors for electrically connecting the stator segments.
14. The stator-arrangement according to claim 8 , wherein the inlet and outlet of the duct-like pipe and the electrical connectors are disposed at the same end of the stator segment.
15. The stator-arrangement according to claim 1 , wherein the stator segment comprises at least one slot for accommodating the at least one stator winding.
16. The stator-arrangement according to claim 1 , wherein the stator segment comprises at least two stator segment members to build the stator segment.
17. A wind turbine generator, comprising:
a rotor; and
a stator wherein the stator is formed from a stator arrangement according to claim 1 .