CN201956848U

CN201956848U - Permanent magnet synchronous wind generator with multi-layer windings

Info

Publication number: CN201956848U
Application number: CN2011200617643U
Authority: CN
Inventors: 张其智; 杨锡山; 于克涛
Original assignee: SHANDONG SWISS ELECTRIC CO Ltd
Current assignee: SHANDONG SWISS ELECTRIC CO Ltd
Priority date: 2011-03-10
Filing date: 2011-03-10
Publication date: 2011-08-31
Anticipated expiration: 2021-03-10
Also published as: WO2012119542A1

Abstract

The utility model discloses a permanent magnet synchronous wind generator with multi-layer windings, which comprises a shell and an end cover, wherein at least two circles of ring-shaped stator iron cores are fixedly connected with the shell, and coil windings are respectively mounted on the stator iron cores; a rotor shaft in rotary connection with the shell and in power connection with a power device is arranged in the shell; and rotors fixedly connected with the rotor shaft are arranged between the adjacent stator iron cores, and a plurality of permanent magnets in uniform distribution at intervals are connected with the surfaces of the rotors close to the coil windings. The wind generator provided by the utility model has the advantages of compact structure, small volume, high power, and convenience in transportation and mounting.

Description

Multilayer winding permanent magnet synchronous wind generator

Technical field

The utility model relates to the generator that is used for wind power generation, is specifically related to a kind of multilayer winding permanent magnet synchronous wind generator.

Background technology

Along with the continuous progress of wind generating technology, the power of generator that is used for wind turbine generator is more and more big.At present, what be used for that the high-power permanent magnet synchronous generator of wind power generation all adopts is that single layer winding is joined the individual layer permanent magnet, this structure power hour (such as＜3MW), also can satisfy lifting and movement requirement, but along with single-machine capacity is increasing, the volume and weight of generator is also increasing thereupon, the motor internal space is also increasing, brought inconvenience for transportation and installation, use once superhuge transportation or hoisting equipment and expense is too high, big again person even directly can not transport can not find bigger hoisting equipment and can not install.In order to overcome transportation and lifting problem, for large-scale magneto alternator, also can adopt the branch body structure, though this structure can solve transportation problem, bring very large difficulty for on-the-spot installation, insulation.

Summary of the invention

The technical problems to be solved in the utility model is at above-mentioned defective, a kind of wind-driven generator of compact conformation is provided, this generator makes full use of the remaining space of generator inside, under the situation that does not increase the whole generator volume, increase the rated power of generator, can conveniently solve large-scale magneto alternator transportation problem on land, and not increase extra Installation and Debugging difficulty.

In order to solve the problems of the technologies described above, the utility model provides a kind of multilayer winding permanent magnet synchronous wind generator with following structure, comprise casing and end cap, its design feature is to be provided with at least in the casing two circles and is fixed on the casing and stator core in the form of a ring, and coil windings all is housed on each stator core; Be provided with the armature spindle that is rotatably connected on the casing and is used for being connected in the casing with power set power; Be provided with the rotor that is fixed on the armature spindle between the adjacent stators iron core, rotor is pressed close to be connected with on the surface of coil windings at interval and the polylith permanent magnet of uniform setting.

Described stator core is made as inside and outside two circles.

The utility model is under the situation of the overall volume that does not increase existing wind-driven generator, make full use of the remaining space of generator inside, two circles or the above stator core of two circles are set, on each circle iron core coil windings is housed all, be provided with rotor between the adjacent stators iron core, that is to say, each is drawn a circle to approve the coil windings of sub-iron core and all can generate electricity, under the situation of machine shape constancy of volume, can improve the power of generator greatly.

In sum, advantage of the present utility model is: compact conformation, and volume is little, and power is big, is convenient to transportation and installation.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

Fig. 1 is the structural representation of a kind of embodiment of the utility model;

Fig. 2 is along A-A line among Fig. 1 and removes the cutaway view of coil windings;

Fig. 3 is the structural representation of another kind of embodiment;

Fig. 4 is the structural representation of the third embodiment.

Embodiment

First kind of execution mode of the utility model as depicted in figs. 1 and 2, multilayer winding permanent magnet synchronous wind generator comprises casing 1 and end cap 2, being provided with two circles in the casing 1 is fixed on the casing 1 and the stator core 3 that is provided with one heart, stator core 3 all is equipped with coil windings 4 on the sub-iron core 3 of two delineations generally in the form of a ring.Stator core 3 is made up of iron core sleeve 31, the multi-disc fin 32 that is intervally arranged on iron core sleeve 31 inner peripheral surfaces or outer peripheral face, and the gap that adjacent fins is 32 forms the slot for winding 33 that holds coil windings 4; The mounting means of coil windings 4 on stator core 3 is that the coiling mode is a prior art, do not repeat them here.The fin 32 of position stator core 3 outside is distributed on the inner peripheral surface of iron core sleeve 31, and the position is distributed on the outer peripheral face of iron core sleeve 31 at the fin 32 of interior stator core 3.Be provided with the interior support set 8 and the mandrel 9 that are fixed on the casing in the casing 1, mandrel 9 be positioned at support set 8 and with support set 8 concentric settings; Position stator core 3 outside is installed on the madial wall of casing, on the lateral wall of position support set 8 in interior stator core 3 is sleeved on.It is armature spindle 5 that mandrel 9 is rotatably connected to axle sleeve by bearing 10, and armature spindle 5 is used for being connected with the power set power of wind turbine generator, and armature spindle 5 one ends stretch out end housing 2, so that power connects; Be provided with the rotor 6 that is the jacket casing shape between the sub-iron core 3 of two delineations, rotor 6 is fixed on the armature spindle 5.Rotor 6 is pressed close on the surface of coil windings 4, promptly all is connected with on its inner and outer circumferential surfaces at interval and the polylith permanent magnet 7 of uniform setting.

After the wind-driven generator of said structure is installed on the wind turbine generator, its armature spindle 5 is carried out power with the power set of wind turbine generator to be connected, power set drives rotor shaft 5 drives rotor 6 and rotates the formation rotating magnetic field, coil windings 4 cutting magnetic lines just can produce alternating current, the alternating current that coil windings 4 on the sub-iron core 3 of two delineations produces is transported to two current transformers respectively, current transformer just can be realized generating electricity by way of merging two or more grid systems of generator after alternating current is adjusted to the frequency and voltage that meets the requirement of transmission of electricity electrical network.

Second kind of execution mode of the present utility model as shown in Figure 3, Fig. 3 is the cross sectional representation that generator removes coil windings, the generator of this structure is the improvement of making on the basis of first kind of execution mode, outer support set 11 with its concentric setting promptly also is set in the outside of interior support set 8, outer support set 11 also is fixed on the casing 1, on the lateral wall of interior support set 8, respectively be connected with the stator core 3 that coil windings is housed on the madial wall of outer support set 11 and on the madial wall of casing 1, be fixed in rotor 6 on the armature spindle 5 between two stator cores 3 of inboard, in the rotor 6, all be connected with the polylith permanent magnet 7 of interval and uniform setting on the outer peripheral face; Be provided with the external rotor 12 that is fixed on the armature spindle 5 and is the jacket casing shape between outermost stator core 3 and the outer support set 11, be connected with on the outer peripheral face of external rotor 12 at interval and the polylith permanent magnet 7 of uniform setting.The alternating current that coil windings on the sub-iron core 3 of three delineations produces is transported to three current transformers respectively, and current transformer just can be realized generating electricity by way of merging two or more grid systems of generator after alternating current is adjusted to the frequency and voltage that meets the requirement of transmission of electricity electrical network.

The third execution mode of the present utility model as shown in Figure 4, Fig. 4 is the cross sectional representation that generator removes coil windings, the generator of this structure is the improvement of making on the basis of second kind of execution mode, also be connected with the stator core 3 that a circle is equipped with coil windings on the lateral wall of promptly outer support set 11, this stator core 3 is positioned at the inboard of external rotor 12, accordingly, also be connected with the polylith permanent magnet 7 of interval and uniform setting on the inner peripheral surface of external rotor 12.The generator that is to say this structure has the sub-iron core 3 of four delineations, the alternating current that coil windings on the sub-iron core 3 of four delineations produces is transported to four current transformers respectively, current transformer just can be realized generating electricity by way of merging two or more grid systems of generator after alternating current is adjusted to the frequency and voltage that meets the requirement of transmission of electricity electrical network.

The utility model is an example with the generator of the sub-iron core 3 of two delineations, the three sub-iron cores 3 of delineation and the sub-iron core 3 of four delineations only; design of the present utility model is described; be not to restriction of the present utility model; the more multi-turn that meets same idea is counted the generator of stator core, also within protection range of the present utility model.

Claims

1. multilayer winding permanent magnet synchronous wind generator, comprise casing (1) and end cap (2), it is characterized in that being provided with at least in the casing (1) two circles and be fixed in the last and stator core in the form of a ring (3) of casing (1), coil windings (4) all is housed on each stator core (3); Be provided with in the casing (1) and be rotatably connected on the armature spindle (5) that casing (1) is gone up and is used for being connected with power set power; Be provided with the rotor (6) that is fixed on the armature spindle (5) between the adjacent stators iron core (3), rotor (6) is pressed close to be connected with on the surface of coil windings (4) at interval and the polylith permanent magnet (7) of uniform setting.

2. multilayer winding permanent magnet synchronous wind generator as claimed in claim 1 is characterized in that described stator core (3) is made as inside and outside two circles.