CN204349605U - The module unshakable in one's determination of wind-driven generator and stator core and stator - Google Patents
The module unshakable in one's determination of wind-driven generator and stator core and stator Download PDFInfo
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- CN204349605U CN204349605U CN201520071411.XU CN201520071411U CN204349605U CN 204349605 U CN204349605 U CN 204349605U CN 201520071411 U CN201520071411 U CN 201520071411U CN 204349605 U CN204349605 U CN 204349605U
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Abstract
The utility model provides the module unshakable in one's determination of a kind of wind-driven generator and stator core and stator, the overall dimensions of module unshakable in one's determination meets the principle of MgO-ZrO_2 brick q=1, two three-phase windings unit are provided with, the electrical degree difference 30 degree between described two three-phase windings unit in described module unshakable in one's determination.The module unshakable in one's determination of the wind-driven generator of the utility model embodiment and stator core and stator, by changing the arrangement mode of the winding in stator core module, make the electrical degree difference 30 degree between two three-phase windings unit, thus effectively attenuates 5,7 winding harmonic wave magnetomotive force.
Description
Technical field
The utility model relates to the module unshakable in one's determination of a kind of wind-driven generator and stator core and stator, belongs to technical field of wind power generation.
Background technology
Along with the raising of large-scale permanent magnet generator capacity, the volume of generator and size be corresponding increase also, thus causes generator unit stator in the cost increase manufactured and in transport.Stator core manual-chop can be good at solving because stator dimensions increases the manufacture and transportation problem brought, single-layer winding structure of single can realize the distinguish of stator core, but because single layer winding adopts whole apart from pitch design, effectively cannot weaken the content in 5,7 subharmonic magnetic fields, larger torque pulsation problem can be brought, cause the vibration & noise of generator to exceed standard.
Therefore need the problem of distinguish for current large-scale permanent magnet generator stator core, develop a kind of 5, the 7 high-quality single-layer winding structure of single permanent magnet generatores that subharmonic content is few, pulsating torque is little very necessary.
Utility model content
Embodiment of the present utility model provides the module unshakable in one's determination of a kind of wind-driven generator and stator core and stator, and stator adopts the poor single-layer winding structure of single of 5,7 subharmonic, reduces the vibration & noise of generator, extends the useful life of generator.
The utility model provides a kind of module unshakable in one's determination of stator of wind-driven generator, the overall dimensions of described module unshakable in one's determination meets the principle of MgO-ZrO_2 brick q=1, two three-phase windings unit are provided with, the electrical degree difference 30 degree between described two three-phase windings unit in described module unshakable in one's determination.
Further, described module unshakable in one's determination has the teeth groove of multiple accommodation coil, and each described coil is set in two teeth groove, and described teeth groove is divided into the first teeth groove of an accommodation coil side and holds the second teeth groove of two coil sides,
The quantity of described second teeth groove is 1, is arranged in the centre position of all teeth groove, and the quantity of described first teeth groove of the described second teeth groove left and right sides is equal,
In described module unshakable in one's determination, be provided with two three-phase windings unit that coil quantity is equal, the coil quantity of each three-phase windings unit is the integral multiple of 3,
Described two three-phase windings unit are separately positioned on the left and right sides centered by described second teeth groove, and a coil side of the adjacent coil of described two three-phase windings unit is arranged in described second teeth groove.
Further, non-the first angle being positioned at the center line of the tooth of the left and right sides of described first teeth groove of end equals standard included angle,
The standard included angle that second angle of the center line of the tooth of the left and right sides of described second teeth groove equals 1.5 times;
Be positioned at the standard included angle that the 3rd angle sum corresponding to described first teeth groove of two ends is 2.5 times, described 3rd angle is the angle between the center line of the tooth of side in the middle part of the module close unshakable in one's determination of described first teeth groove of end and the side of described module unshakable in one's determination;
Described standard included angle is the angle of the center line of the adjacent teeth of the equally distributed module unshakable in one's determination of teeth groove designed according to the principle of MgO-ZrO_2 brick q=1.
Further, described standard included angle is 0.833 °.
Alternatively, the winding in two described three-phase windings unit is Y-connection.
Further, as above arbitrary described module unshakable in one's determination, the teeth groove quantity that described module unshakable in one's determination comprises is 6n-1, and the coil quantity of each three-phase windings unit is 3n/2, and the span of n is 2,4,6,8,10,12,14,16,18.
The utility model additionally provides a kind of stator core of wind-driven generator, and described stator core is splitted structure, is formed by multiple as above arbitrary described block combiner unshakable in one's determination.
The utility model additionally provides a kind of wind-driven generator, comprises rotor and stator, and described stator comprises stator core as above.
Further, described rotor is splitted structure, is combined by multiple rotor module.
Alternatively, the magnetic pole of described rotor is oblique magnetic pole.
Further, at described oblique magnetic pole along on the cross section of the axis being parallel with wind-driven generator, the angle corresponding to arc length staggered between two limits up and down of described oblique magnetic pole is standard included angle, and described standard included angle is the angle of the center line of the adjacent teeth of the equally distributed module unshakable in one's determination of teeth groove designed according to the principle of MgO-ZrO_2 brick q=1.
Further, described standard included angle is 0.833 °.
Preferably, the magnetic pole of described rotor is surface-mount type magnetic pole, and the axial cross section shape of described magnetic pole can make the excircle of each magnetic pole and stator core form non-uniform gap.
Further, at described magnetic pole with on the cross section of the axes normal of described wind-driven generator, described magnetic pole is curved towards the edge of described stator side, and the ratio of the maximum air gap that the edge of described magnetic pole and the excircle of stator core are formed and minimal air gap is 1.5:1.
Further, at described magnetic pole with on the cross section of the axes normal of described wind-driven generator, described magnetic pole is 70 ° ~ 75 ° near the angle of the base of rotor field spider and side.
The module unshakable in one's determination of the wind-driven generator of the utility model embodiment and stator core and stator, by changing the arrangement mode of the winding in stator core module, make the electrical degree difference 30 degree between two three-phase windings unit, thus effectively attenuates 5,7 winding harmonic wave magnetomotive force.Reduce generator zero load and load torque pulsation, and no-load back electromotive force ripple can be improved, reduce the vibration & noise of generator, extend the useful life of generator, improve the reliability of generator.
Accompanying drawing explanation
Fig. 1 is the structural representation of the module unshakable in one's determination of the stator of the utility model embodiment one;
Fig. 2 is one of coil annexation schematic diagram in the module unshakable in one's determination shown in Fig. 1;
Fig. 3 is the coil annexation schematic diagram two in the module unshakable in one's determination shown in Fig. 1;
Fig. 4 is one of structural representation of the rotor magnetic pole of the utility model embodiment two;
Fig. 5 is the structural representation two of the rotor magnetic pole of the utility model embodiment two;
Fig. 6 is the structural representation three of the rotor magnetic pole of the utility model embodiment two.
Drawing reference numeral illustrates:
1-rotor field spider; 2,3-magnetic pole; 4-module unshakable in one's determination; 41-first teeth groove; 42-second teeth groove; 5-10 is the coil of winding.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
The utility model embodiment has carried out structural improvement to stator core manual-chop, meet on the basis of the principle of MgO-ZrO_2 brick q=1 at the overall dimensions of module unshakable in one's determination, change the set-up mode of the winding be arranged in module unshakable in one's determination, two three-phase windings unit are provided with in module unshakable in one's determination, and make the electrical degree difference 30 degree between these two three-phase windings unit, thus play the effect in reduction by 5,7 subharmonic magnetic field.
Embodiment one
As shown in Figure 1, it is the structural representation of the module unshakable in one's determination of the stator of the utility model embodiment one.The module unshakable in one's determination of the stator of the wind turbine generator of the utility model embodiment, the overall dimensions of module unshakable in one's determination meets the principle of MgO-ZrO_2 brick q=1, two three-phase windings unit are provided with, the electrical degree difference 30 degree between two three-phase windings unit in module unshakable in one's determination.
Further, module 4 unshakable in one's determination can have the teeth groove of multiple accommodation coil, and each coil can be set in two teeth groove, and teeth groove can be divided into the first teeth groove 41 of an accommodation coil side and hold the second teeth groove 42 of two coil sides.The quantity of the second teeth groove 42 can be 1, can be arranged in the centre position of teeth groove, and the quantity of the first teeth groove 41 of second teeth groove 42 left and right sides can be equal.In module 4 unshakable in one's determination, two three-phase windings unit that coil quantity is equal can be provided with, the coil quantity of each three-phase windings unit can be the integral multiple of 3 (specifically, each three-phase windings unit is considered as one group of three-phase windings, each phase winding can be made up of several coils, but the coil quantity that each three-phase windings comprises is equal, therefore, whole coil quantity should be the integral multiple of 3), two three-phase windings unit can be separately positioned on the left and right sides centered by the second teeth groove 42, a coil side of the adjacent coil of two three-phase windings unit can be arranged in the second teeth groove 42.
Below in conjunction with Fig. 1 to Fig. 3, the module unshakable in one's determination of the stator of the present embodiment is described in detail.In the module unshakable in one's determination 4 that Fig. 1 exemplarily illustrates, its coil quantity is 6, each 3 of left and right, as shown in Figure 2, it is one of coil annexation schematic diagram in the module unshakable in one's determination shown in Fig. 1, by 6 coils respectively label be 5-7,8-10, coil 5-7 forms one group of three-phase windings unit, and coil 8-10 forms other one group of three-phase windings unit.The span of 6 coils is 3 (namely two coil sides of coil stride across three tooth configurations).The lead-out wire being wherein set in the coil 5-7 in the teeth groove of left one side of something is A, Y, C, X, B, Z, the lead-out wire being set in the coil 8-10 in the teeth groove of right one side of something is a, y, c, x, b, z, by these exits are configured connection, coil configuration can be become two three-phase windings unit (being total up to 6 phase windings) of the star connection of (Fig. 3 is the coil annexation schematic diagram two in the module unshakable in one's determination shown in Fig. 1) as shown in Figure 3.Preferably, two three-phase windings unit are Y-connection.
In FIG, teeth groove adds up to 11, and wherein, the first teeth groove 41 is 10, each side 5, and the second teeth groove 42 is 1.Coil is ovalize haply, a coil side and another coil side of coil are set in two teeth groove respectively, two teeth groove are separated with between these two teeth groove, a coil side of the coil 5 namely in Fig. 1 is arranged in first teeth groove in left side, and another article of coil side of coil 5 is arranged in the 4th teeth groove in left side.In the second teeth groove 42, be provided with a coil side of coil 7 of three-phase windings unit in left side and a coil side of the coil 8 of the three-phase windings unit on right side.Such set-up mode makes to have differed 30 ° of electrical degrees (phase of the electric current namely between two windings 30 °) between two windings in left and right, thus restrained effectively 5,7 subharmonic magnetic fields.
Above-mentioned module unshakable in one's determination 4 is parts unshakable in one's determination, after the module unshakable in one's determination 4 of the present embodiment of some being combined, just can form whole stator core.Each module unshakable in one's determination 4 is on the whole in arc-shaped.According to the design principle of the MgO-ZrO_2 brick q=1 of standard, in the module unshakable in one's determination forming same iron core, the size of each tooth is identical and arrangement is even, the angle at the center of adjacent teeth is equal, this angle is defined as standard included angle β (angle that angle mentioned here is all is the center of circle with the center of stator), under the prerequisite of standard design, be alternatively wherein that whole circumference adopts 432 teeth groove, corresponding to standard included angle β=360 °/432=0.833 °.
In the utility model embodiment, the overall dimensions of module unshakable in one's determination meets the principle of MgO-ZrO_2 brick q=1, here overall dimensions refers to the overall size, arc length etc. of module unshakable in one's determination, and, when adjusting the size of indivedual teeth groove wherein and tooth, also design with reference to above-mentioned standard included angle β.For each module unshakable in one's determination, need to keep according to the overall arc length under standard design, the standard included angle β sum namely under standard design.For example, structure as shown in Figure 1, have employed the structure whole iron core being divided into 36 modules unshakable in one's determination, for each module unshakable in one's determination, need the radian of maintenance 12 β, namely no matter how to adjust teeth groove quantity or tooth slot structure, the overall radian of whole module unshakable in one's determination is constant.Again such as, if adopt the structure whole iron core being divided into 18 modules unshakable in one's determination, then, for each module unshakable in one's determination, the radian of maintenance 24 β is needed.
In embodiment of the present utility model, on the basis of standard design, the size of teeth groove and arrangement are improved, wherein, as a kind of structure preferably, non-the first angle being positioned at the center line of the tooth of the left and right sides of the first teeth groove 41 of end can be made to equal standard included angle, the standard included angle that the second angle of the center line of the tooth of the left and right sides of the second teeth groove 42 equals 1.5 times can be made, and the 3rd angle sum being arranged in the first teeth groove 41 (being namely positioned at first teeth groove of Fig. 1 left and right sides) correspondence of two ends can be the standard included angle of 2.5 times, here the 3rd angle refers to the angle between the center line of the tooth of side in the middle part of the module close unshakable in one's determination of the first teeth groove 41 of end and the side of module unshakable in one's determination.The angle initialization of above various piece is the principle in order to make the overall dimensions of module unshakable in one's determination meet MgO-ZrO_2 brick q=1, and the angle of the whole circumference that each module unshakable in one's determination also can be made to occupy is the same.In the present embodiment, by making whole module unshakable in one's determination keep the radian of 12 β to the adjustment of width of the tooth being positioned at the left and right sides.Specifically can adjust two teeth being positioned at end, also can only adjust one.Such as, in FIG, only the tooth of one of them right-hand end has been carried out widening (even if the 3rd angle of first teeth groove 41 correspondence at right side edge place is set as 1.5 β), thus made up the width having lacked a teeth groove.Optionally, the width that also simultaneously can adjust the tooth of two ends makes up the width having lacked a teeth groove.
Further, as module unshakable in one's determination, the number of its teeth groove and coil is not limited to the configuration shown in Fig. 1, can configure teeth groove and the more stator modules of coil quantity based on mentioned above principle.Consider from the angle forming whole stator core, the teeth groove quantity of module unshakable in one's determination meets following rule: the teeth groove quantity that module unshakable in one's determination comprises is 6n-1, and the coil quantity of each three-phase windings unit is 3n/2, and the coil number of whole module unshakable in one's determination is 3n.The span of n is 2,4,6,8,10,12,14,16,18.Particularly, the teeth groove number of module unshakable in one's determination (is the quantity of the teeth groove of the uniform module unshakable in one's determination of teeth groove designed according to the principle of the MgO-ZrO_2 brick q=1 of standard in bracket, also be the β number that each module unshakable in one's determination needs to keep) can be: 11 (12), 23 (24), 35 (36), 47 (48), 71 (72) and 107 (108), the lobe number of corresponding module unshakable in one's determination can obtain divided by the teeth groove number in bracket with 432, and namely corresponding lobe number is 36,18,12,9,6,4.
Embodiment two
The present embodiment relates to by the iron core of the stator of the module composition unshakable in one's determination of above-described embodiment and the wind-driven generator comprising this iron core.
After the module above-mentioned unshakable in one's determination of some being combined, just can form the stator core of the utility model embodiment.Particularly, with the teeth groove number of above-mentioned module unshakable in one's determination accordingly, under the whole circumference unshakable in one's determination of employing is the prerequisite of the design of 432 teeth groove, the quantity forming the module unshakable in one's determination of whole iron core can be 36,18,12,9,6,4.As shown in Figure 4, it is one of structural representation of the rotor magnetic pole of the utility model embodiment, and whole stator core includes 36 modules unshakable in one's determination 4 as shown in Figure 1.
After the stator that comprises said stator iron core and rotor assembling, just form the wind-driven generator of the utility model embodiment.With above-mentioned stator core accordingly, rotor can adopt following structure:
As shown in Figure 4, the utility model embodiment is described for external rotor, there is shown 4 magnetic poles, and the polarity of magnetic pole 2 and magnetic pole 3 is contrary, and is intervally arranged.Corresponding to the design (teeth groove designed under the principle of MgO-ZrO_2 brick q=1) of 432 above-mentioned teeth groove, rotor magnetic pole sum can be 144 poles (rotor magnetic pole sum=432/ (m*q)=432/ (1*3)=144, wherein m is the number of phases).And rotor can be also splitted structure, is namely combined by multiple rotor module.The magnetic pole be arranged on rotor field spider 1 can adopt oblique magnetic pole.Further, as shown in Figure 5, it is the structural representation two of the rotor magnetic pole of the utility model embodiment, on the cross section along the axis being parallel with wind-driven generator (cross section namely shown in Fig. 5) of oblique magnetic pole, the angle kt corresponding to arc length staggered between two limits up and down of oblique magnetic pole can be above-mentioned standard included angle, with above-described embodiment accordingly, this standard included angle can be 0.833 °.
Preferably, magnetic pole is surface-mount type magnetic pole, and the axial cross section shape of magnetic pole can make the excircle of each magnetic pole and stator core form non-uniform gap.Such as, as shown in Figure 4 and Figure 6, Fig. 6 is the structural representation three of the rotor magnetic pole of the utility model embodiment.At magnetic pole with on the cross section (cross section namely shown in Fig. 6) of the axes normal of wind-driven generator, magnetic pole is curved towards the edge of stator side, and the maximum air gap that the edge of magnetic pole and the excircle of stator core can be made by the size arranging arc to be formed and the ratio of minimal air gap are 1.5:1, ratio between the air gap delta 1 of magnetic pole two ends namely in Fig. 6 and the air gap delta at middle part is 1.5:1, distributes close to sine to make air-gap field.Further, as shown in Figure 6, at magnetic pole with on the cross section (cross section namely shown in Fig. 6) of the axes normal of wind-driven generator, magnetic pole is preferably 70 ° ~ 75 ° near the angle α of the base of rotor field spider and side.
By the structure of above-mentioned rotor magnetic pole, the teeth groove of module unshakable in one's determination and the arrangement mode of coil of the stator in above-described embodiment can be coordinated better, thus reduce by 5,7 subharmonic magnetic fields.
In sum, the wind-driven generator of the utility model embodiment comprises rotor and stator, rotor comprises rotor field spider and magnetic pole, stator comprises iron core and single layer winding, the permanent magnet generator of the present embodiment is on the basis of the design principle of MgO-ZrO_2 brick q=1, the teeth groove of module unshakable in one's determination is improved, by changing mechanical angle and the teeth groove quantity of teeth groove, achieve the design that two Y moves the single-layer winding structure of single of 30 ° of electrical degrees (i.e. the three-phase windings unit of two Y-connections differs 30 ° of phase places), on the basis not increasing coil key dimension and manufacturing cost, effectively can weaken 5, 7 winding harmonic wave magnetomotive force, and the object of stator distinguish design can be realized, the utilance of the utility model rotor permanent magnet is high, the magnetic leakage factor of permanent magnet can be reduced, air-gap field sine is good, effectively attenuates cogging torque.Reduce generator zero load and load torque pulsation, and no-load back electromotive force ripple can be improved, reduce the vibration & noise of generator, extend the useful life of generator, improve the reliability of generator.It should be noted that, the scheme of the utility model embodiment is not limited to the design of internal stator, external rotor, can also be internal rotor, the design of external stator.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of described claim.
Claims (15)
1. the module unshakable in one's determination of the stator of a wind-driven generator, it is characterized in that, the overall dimensions of described module unshakable in one's determination meets the principle of MgO-ZrO_2 brick q=1, is provided with two three-phase windings unit in described module unshakable in one's determination, the electrical degree difference 30 degree between described two three-phase windings unit.
2. module unshakable in one's determination according to claim 1, it is characterized in that, described module unshakable in one's determination has the teeth groove of multiple accommodation coil, and each described coil is set in two teeth groove, described teeth groove is divided into the first teeth groove of an accommodation coil side and holds the second teeth groove of two coil sides
The quantity of described second teeth groove is 1, is arranged in the centre position of all teeth groove, and the quantity of described first teeth groove of the described second teeth groove left and right sides is equal,
In described module unshakable in one's determination, be provided with two three-phase windings unit that coil quantity is equal, the coil quantity of each three-phase windings unit is the integral multiple of 3,
Described two three-phase windings unit are separately positioned on the left and right sides centered by described second teeth groove, and a coil side of the adjacent coil of described two three-phase windings unit is arranged in described second teeth groove.
3. module unshakable in one's determination according to claim 2, is characterized in that, non-the first angle being positioned at the center line of the tooth of the left and right sides of described first teeth groove of end equals standard included angle,
The standard included angle that second angle of the center line of the tooth of the left and right sides of described second teeth groove equals 1.5 times;
Be positioned at the standard included angle that the 3rd angle sum corresponding to described first teeth groove of two ends is 2.5 times, described 3rd angle is the angle between the center line of the tooth of side in the middle part of the module close unshakable in one's determination of described first teeth groove of end and the side of described module unshakable in one's determination;
Described standard included angle is the angle of the center line of the adjacent teeth of the equally distributed module unshakable in one's determination of teeth groove designed according to the principle of MgO-ZrO_2 brick q=1.
4. module unshakable in one's determination according to claim 3, is characterized in that, described standard included angle is 0.833 °.
5. module unshakable in one's determination according to claim 2, is characterized in that, the winding in two described three-phase windings unit is Y-connection.
6. according to the arbitrary described module unshakable in one's determination of claim 1 to 5, it is characterized in that, the teeth groove quantity that described module unshakable in one's determination comprises is 6n-1, and the coil quantity of each three-phase windings unit is 3n/2, and the span of n is 2,4,6,8,10,12,14,16,18.
7. a stator core for wind-driven generator, is characterized in that, described stator core is splitted structure, by multiple as arbitrary in claim 1 to 6 as described in block combiner unshakable in one's determination form.
8. a wind-driven generator, is characterized in that, comprises rotor and stator, and described stator comprises stator core as claimed in claim 7.
9. wind-driven generator according to claim 8, is characterized in that, described rotor is splitted structure, is combined by multiple rotor module.
10. wind-driven generator according to claim 8, is characterized in that, the magnetic pole of described rotor is oblique magnetic pole.
11. wind-driven generators according to claim 10, it is characterized in that, at described oblique magnetic pole along on the cross section of the axis being parallel with wind-driven generator, the angle corresponding to arc length staggered between two limits up and down of described oblique magnetic pole is standard included angle, and described standard included angle is the angle of the center line of the adjacent teeth of the equally distributed module unshakable in one's determination of teeth groove designed according to the principle of MgO-ZrO_2 brick q=1.
12. wind-driven generators according to claim 11, is characterized in that, described standard included angle is 0.833 °.
13. wind-driven generators according to claim 12, is characterized in that, the magnetic pole of described rotor is surface-mount type magnetic pole, and the axial cross section shape of described magnetic pole can make the excircle of each magnetic pole and stator core form non-uniform gap.
14. wind-driven generators according to claim 13, it is characterized in that, at described magnetic pole with on the cross section of the axes normal of described wind-driven generator, described magnetic pole is curved towards the edge of described stator side, and the ratio of the maximum air gap that the edge of described magnetic pole and the excircle of stator core are formed and minimal air gap is 1.5:1.
15. wind-driven generators according to claim 14, is characterized in that, at described magnetic pole with on the cross section of the axes normal of described wind-driven generator, described magnetic pole is 70 ° ~ 75 ° near the angle of the base of rotor field spider and side.
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| CN201520071411.XU CN204349605U (en) | 2015-01-30 | 2015-01-30 | The module unshakable in one's determination of wind-driven generator and stator core and stator |
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| CN201520071411.XU CN204349605U (en) | 2015-01-30 | 2015-01-30 | The module unshakable in one's determination of wind-driven generator and stator core and stator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617689A (en) * | 2015-01-30 | 2015-05-13 | 新疆金风科技股份有限公司 | Wind driven generator, stator iron core of wind driven generator and iron core module of stator |
| CN113890297A (en) * | 2021-10-08 | 2022-01-04 | 哈尔滨工业大学 | Low-space harmonic single-double layer winding radial magnetic flux five-phase permanent magnet synchronous motor |
-
2015
- 2015-01-30 CN CN201520071411.XU patent/CN204349605U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617689A (en) * | 2015-01-30 | 2015-05-13 | 新疆金风科技股份有限公司 | Wind driven generator, stator iron core of wind driven generator and iron core module of stator |
| WO2016119512A1 (en) * | 2015-01-30 | 2016-08-04 | 新疆金风科技股份有限公司 | Wind power generator and stator iron core thereof, and stator iron core module |
| US10541579B2 (en) | 2015-01-30 | 2020-01-21 | Xinjiang Goldwind Science & Technology Co., Ltd. | Wind power generator and stator iron core therof, and stator iron core module |
| CN113890297A (en) * | 2021-10-08 | 2022-01-04 | 哈尔滨工业大学 | Low-space harmonic single-double layer winding radial magnetic flux five-phase permanent magnet synchronous motor |
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