KR102045255B1

KR102045255B1 - Transverse flux induction machine and power generation system including it

Info

Publication number: KR102045255B1
Application number: KR1020130080819A
Authority: KR
Inventors: 손락원; 이정일
Original assignee: 두산중공업 주식회사
Priority date: 2013-07-10
Filing date: 2013-07-10
Publication date: 2019-11-15
Also published as: KR20150007384A

Abstract

The present invention relates to a transverse flux type induction rotor configured to allow the windings of the rotor and the windings of the stator to be perpendicular to each other, and a power generation system including the same.
To this end, the present invention is a rotating shaft that rotates by an external force; A rotor connected to the rotation shaft and rotating by the rotation shaft, the rotor having a rotor iron core having a plurality of slots formed in a rotation axis direction on an outer circumferential surface thereof, and a plurality of rotor windings inserted into the slots; And a plurality of stators installed to be orthogonal to the rotor, and each stator includes a ring-shaped stator winding and a plurality of stator irons sandwiching the stator winding.
Accordingly, the present invention forms a stator winding in a ring shape, and a plurality of stator cores sandwich the outer circumferential surface of the stator winding to constitute one stator, so that the stator windings of the stator are perpendicular to each other with the rotor windings of the rotor. Although installed, the stator iron cores are provided with a pair of stator teeth protruding from each other while maintaining a predetermined distance from each other, thereby cooling the stator winding through a space formed between the stator teeth and the stator teeth to increase the current density. This makes it possible to reduce the weight of the existing generator.

Description

Transverse flux type induction rotor and power generation system including same {TRANSVERSE FLUX INDUCTION MACHINE AND POWER GENERATION SYSTEM INCLUDING IT}

The present invention relates to a transverse flux type induction rotor and a power generation system including the same, and more particularly, to a transverse flux type induction rotor configured to allow the windings of the rotor and the windings of the stator to be perpendicular to each other.

Generally, a generator is a device that converts mechanical energy into electrical energy, and is configured such that an electromagnet for generating a magnetic field and a conductor for generating an electromotive force rotate relatively.

As shown in FIG. 1, such a generator includes a rotating shaft 1, a rotor 2, and a stator 5.

The rotating shaft 1 rotates by an external force.

The rotor 2 is connected to the rotating shaft 1 and rotated by the rotating shaft 1, and is composed of a rotor iron core 3 and a rotor conductor 4. Here, a plurality of slots are formed on the outer circumferential surface of the rotor iron core 3 at regular intervals in the rotation axis direction, and the rotor conductor 4 formed of copper or aluminum is inserted into the slot.

The stator 5 is provided around the outer circumference of the rotor 2 and is composed of a stator iron core 6 and a stator coil 7. Here, a plurality of slots are formed on the inner circumferential surface of the stator iron core 6 in the rotation axis direction so as to correspond to the slots formed on the outer circumferential surface of the rotor 2, and the stator coil 7 is inserted into the slot.

In the generator configured as described above, when the rotating shaft 1 is rotated by an external force, the rotor 2 connected to the rotating shaft 1 rotates, and the stator 5 maintains the stationary state. At this time, the induced electromotive force is generated in the stator coil 7 by the electromagnetic induction phenomenon.

As described above, in the conventional generator, the rotor conductor 4 and the stator coil 7 are formed in the rotation axis direction.

Meanwhile, one of the main research tasks of generators is to increase the current density.

Korean Patent Publication No. 10-1162477

According to the present invention, a stator winding is formed in a ring shape, and a plurality of stator cores sandwich an outer circumferential surface of the stator winding to form one stator, and the stator windings of the stator are installed so as to be perpendicular to the rotor winding of the rotor. Its purpose is to provide a transverse flux type induction rotor.

Horizontal flux-type induction rotator according to an embodiment of the present invention for achieving the above object, a rotating shaft that rotates by an external force; A rotor connected to the rotation shaft and rotating by the rotation shaft, the rotor having a rotor iron core having a plurality of slots formed in a rotation axis direction on an outer circumferential surface thereof, and a plurality of rotor windings inserted into the slots; And a plurality of stators installed to be orthogonal to the rotor, and each stator includes a ring-shaped stator winding and a plurality of stator irons sandwiching the stator winding.

According to the transverse flux-type induction rotor of the present invention, the stator windings are formed in a ring shape, and a plurality of stator irons sandwich the outer circumferential surface of the stator windings to constitute one stator, and the stator windings of the stator are the rotor windings of the rotor. And orthogonal to each other, and the stator cores have a pair of stator teeth spaced apart from each other and staggered from each other, thereby cooling the stator winding through the space formed between the stator teeth and the stator teeth to increase the current density. Will be. This makes it possible to reduce the weight of the existing generator.

1 is a view schematically showing the configuration of a conventional generator.
Figure 2 is a schematic view showing the configuration of a transverse flux-type induction rotor according to an embodiment of the present invention.
3 is a view showing an example of a rotor applied to the present invention.
4 is a view schematically showing the configuration of a stator applied to the present invention.
5 is a view showing a configuration of a stator iron core applied to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail for the transverse flux-type induction rotor according to a preferred embodiment of the present invention.

2 is a view schematically showing the configuration of a lateral flux-type induction rotor according to an embodiment of the present invention.

In FIG. 2, the rotation shaft 10 rotates by an external force.

The rotor 20 is connected to the rotating shaft 10 and rotated by the rotating shaft 10, and is composed of a rotor core 21 and a rotor winding 23.

As shown in FIG. 3, a plurality of slots are formed at regular intervals on the outer circumferential surface of the rotor iron core 21, and a rotor winding 23 is inserted into the slot.

As described above, the rotor core 21 may be composed of a non-oriented electrical steel sheet, a powder core, and the like, and serve as a passage for the magnetic flux and a support for the rotor winding 23. do.

In addition, the rotor winding 23 is a portion that generates torque by the flow of electric current, and may be made of copper, aluminum, and the like. .

Meanwhile, the stator 30 is installed to be orthogonal to the rotor 20, and each stator 30 includes a plurality of stator cores 31 and a stator winding 33.

Each stator core 31 sandwiches a stator winding 33 having a ring shape, which will be described in more detail below with reference to FIG. 4.

As described above, the stator iron core 31 may be composed of a non-oriented electrical steel sheet, a powder core, and the like as the rotor iron core 21, and serves as a passage of the stator magnetic flux and a support role of the stator winding 33.

The stator winding 33 is a part that plays a role of supplying electric current (motor) and transmitting electric current (generator), and is formed in a ring shape.

In addition, the stator winding 33 may be made of a high conductivity material such as copper, aluminum, etc. Like the rotor winding 23, the stator winding 33 preferably has a structure surrounded by an insulator for insulation from the stator core 31.

As described above, it is preferable that an air gap is formed between the rotor iron core 21 and the stator iron core 31 for the transmission of magnetic energy and the rotation of the rotor 20.

4 is a view schematically showing a configuration of a stator applied to the present invention.

As shown in FIG. 4, the stator 30 applied to the present invention includes a stator winding 33 and a plurality of stator iron cores 31.

The stator windings 33 described above are formed in a ring shape, and a plurality of stator cores 31 are sandwiched around the stator windings 33 on the outer circumferential surface of the stator windings 33. Here, it is preferable that the plurality of stator iron cores 31, which are sandwiched around the stator windings 33, are symmetrically installed about the rotation shaft 10. As shown in FIG.

As described above, the stator 30 composed of a plurality of stator iron cores 31 sandwiching the ring-shaped stator windings 33 and the stator windings 33 is preferably configured to be independent of other stators installed in the generator. .

5 is a view showing a configuration of a stator iron core applied to the present invention.

As shown in FIG. 5, the stator iron core 31 applied to the present invention maintains a predetermined distance from each other so as to sandwich the ring-shaped stator winding 33, and a pair of stator teeth protruding from each other alternately. 31a and 31b are provided.

Such a stator core 31 is preferably formed in the same shape with each other.

As described above, since the stator core 31 is provided with a pair of stator teeth protruding from each other while maintaining a constant distance from each other, a plurality of stator iron core 31 is sandwiched around the stator winding 33 In addition, a space is formed between the stator teeth and the stator teeth provided in each of the stator iron cores 31, thereby cooling the stator windings by flowing cooling air or by inserting a cooling jacket to improve the cooling efficiency of the generator. It becomes possible.

As such, as the cooling efficiency of the generator can be improved, the current density can be increased as a result, and thus, the weight of the generator can be reduced.

The lateral flux-type induction rotator of the present invention is not limited to the above-described embodiment, and may be variously modified and implemented within the range permitted by the technical idea of the present invention.

10. rotating shaft, 20. rotor,
21. rotor iron core, 23. rotor reel,
30. stator, 31. stator iron core,
33. Stator winding

Claims

A rotating shaft rotating by an external force;
A rotor connected to the rotation shaft and rotating by the rotation shaft, the rotor having a rotor iron core having a plurality of slots formed in a rotation axis direction on an outer circumferential surface thereof, and a plurality of rotor windings inserted into the slots; And
It includes a plurality of stators are installed to be orthogonal to the rotor,
Each stator is composed of a ring-shaped stator winding and a plurality of stator cores sandwiching the stator windings,
The stator iron core
With a pair of stator teeth spaced apart from each other and protruding from each other,
Further comprising a cooling jacket interposed at the predetermined interval between the stator teeth
Transverse flux induction rotor.

delete

The method of claim 1,
The stator iron core is
Symmetrically installed about the rotation axis
Transverse flux induction rotor.

The method of claim 1,
The stator windings,
Formed of copper or aluminum
Transverse flux induction rotor.

The method of claim 1,
A void is formed between the rotor iron core and the stator iron core.
Transverse flux induction rotor.

The method of claim 1,
The rotor iron core and the stator iron core are formed of a non-oriented electrical steel sheet or powder core
Transverse flux induction rotor.

The method of claim 1,
Each stator,
Composed independently of other stators
Transverse flux induction rotor.

A turbine for providing rotational force; And
It includes a transverse flux type induction rotor for generating an induced electromotive force by rotating by the rotation force,
The transverse flux type induction rotor
A rotating shaft rotating by the rotating force,
A rotor connected to the rotation shaft and rotated by the rotation shaft, the rotor having a rotor iron core having a plurality of slots formed in a rotation axis direction on an outer circumferential surface thereof, and a plurality of rotor windings inserted into the slot;
It is installed to be perpendicular to each other and the rotor, each of the stator windings and a plurality of stators having a plurality of stator iron core sandwiching the stator windings,
The stator iron core
With a pair of stator teeth spaced apart from each other and protruding from each other,
Further comprising a cooling jacket interposed at the predetermined interval between the stator teeth
Power generation system.

delete

The method of claim 8,
The stator iron core of the transverse magnetic flux induction rotor,
Symmetrically installed about the rotation axis
Power generation system.