CN101705917A - Permanent-magnetic wind driven generator - Google Patents
Permanent-magnetic wind driven generator Download PDFInfo
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- CN101705917A CN101705917A CN200910258589A CN200910258589A CN101705917A CN 101705917 A CN101705917 A CN 101705917A CN 200910258589 A CN200910258589 A CN 200910258589A CN 200910258589 A CN200910258589 A CN 200910258589A CN 101705917 A CN101705917 A CN 101705917A
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- permanent
- rotor assembly
- wound rotor
- driven generator
- wind driven
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses a permanent-magnetic wind driven generator, which comprises a base, a pair of base end covers connected to two ends of the base, a carbon brush and an electrical energy leading-out wire. The permanent-magnetic wind driven generator also comprises a wound rotor assembly, a permanent-magnetic rotor assembly and a pair of fan blades with opposite deflection angles; the permanent-magnetic rotor assembly is coaxially nested in the wound rotor assembly; the wound rotor assembly is coaxially nested in the base through the support of the pair of base end covers; the carbon brush is contacted with the wound rotor assembly and is fixedly connected to the side wall of the first base end cover; the electrical energy leading-out wire is connected with the carbon brush, and is led out through a corresponding open pore on the base; and the pair of fan blades with the opposite deflection angles are fixedly connected with the wound rotor assembly and the permanent-magnetic rotor assembly respectively. By adopting the permanent-magnetic wind driven generator, a wound rotor can rotate relative to a permanent-magnetic rotor at the same speed in the opposite direction, so the starting wind speed is reduced, and the utilization rate of wind energy is remarkably improved.
Description
Technical field
The present invention relates to a kind of wind power plant, relate in particular to a kind of permanent-magnetic wind driven generator.
Background technique
Along with the exhaustion day by day of resource and the reinforcement of environmental protection consciousness, wind-power electricity generation has obtained great attention in the world as competitive, a most promising renewable energy technologies, and the wind-power electricity generation machine technology presents the fast-developing impetus.
Traditional wind-driven generator has DC generator, asynchronous and synchronous alternator, no matter be which kind of motor, form by stator and rotor two big critical pieces, produce induction electromotive force by in the winding of rotation in being in the variation magnetic field of rotor, thereby the wind energy transformation that wind wheel is caught is become electric energy.
At present in wind-power electricity generation extensive use magneto alternator arranged, conventional permanent magnet synchronous wind generator all is just torque to be sent to generator through after the speed control system, have resistance and loss in the pilot process, this just requires higher starting wind velocity, generator only could run well in specified wind speed range, the scope of work wind speed is narrower, and power coefficient is lower, and the wind energy that surpasses half fails to be caught fully and transform.For reducing the resistance and the loss of pilot process, usually adopt direct driving technologies now, directly drive the number of pole-pairs that requires to increase permanent magnet and adopt, can cause unfavorable factors such as motor processed complex, cost increase like this, the direct-drive wind power generation technology also requires generator to have alap starting wind velocity simultaneously.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of permanent-magnetic wind driven generator of building pressure work under the lower situation of wind speed that is implemented in.
In order to solve the problems of the technologies described above, the invention provides a kind of permanent-magnetic wind driven generator, comprise support, be connected in a pair of support end cap at described support two ends, carbon brush and electric energy lighting outlet, described permanent-magnetic wind driven generator also comprises the wound rotor assembly, p-m rotor assembly and a pair of fan blade with opposite angle of yaw, the coaxial heart of described p-m rotor assembly is nested in the described wound rotor assembly, described wound rotor assembly is nested in the described support by the coaxial heart of described a pair of support endcap support, described carbon brush and described wound rotor assembly keep in touch, and be fixedly connected on the sidewall of the first described support end cap, described electric energy lighting outlet is connected with described carbon brush, and draw by the corresponding aperture on the described support, described a pair of fan blade with opposite angle of yaw is fixedlyed connected with the p-m rotor assembly with described wound rotor assembly respectively.
Implement the present invention, have following beneficial effect: 1) p-m rotor can rotate at the same rate in opposite directions with respect to wound rotor, thereby the relative rotation speed between magnetic field and winding has been increased one times, generating capacity doubles under the same wind friction velocity, even under the lower situation of wind speed, also can build pressure work, greatly reduce starting wind velocity; 2) because minimum work wind speed is reduced to half of common permanent-magnetic wind driven generator, high workload wind speed is the same with common permanent-magnetic wind driven generator, and its work wind speed range can be expanded largely, and wind energy utilization significantly improves; 3) half that working speed only needs common permanent-magnetic wind driven generator under the same number of pole-pairs get final product, has more advantage in direct driving field, can reduce loss, improves generating efficiency and reduction power generation system cost.
Description of drawings
Fig. 1 is the structural representation of a kind of permanent-magnetic wind driven generator of the present invention;
Fig. 2 is the sectional view of the p-m rotor assembly of a kind of permanent-magnetic wind driven generator of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of permanent-magnetic wind driven generator according to the present invention comprises support 1, be connected in a pair of support end cap 21 at described support 1 two ends, 22, carbon brush 6 and electric energy lighting outlet 7, described permanent-magnetic wind driven generator also comprises the wound rotor assembly, p-m rotor assembly and a pair of fan blade 51 with opposite angle of yaw, 52, the coaxial heart of described p-m rotor assembly is nested in the described wound rotor assembly, described wound rotor assembly is by a pair of support end cap 21,22 support coaxial heart is nested in the support 1, carbon brush 6 keeps in touch with described wound rotor assembly, and be fixedly connected on the sidewall of the first support end cap 21, electric energy lighting outlet 7 is connected with carbon brush 6, and draw a pair of fan blade 51 with opposite angle of yaw by the corresponding aperture on the support 1,52 fixedly connected with the p-m rotor assembly with described wound rotor assembly respectively.
In the present embodiment, described wound rotor assembly comprises wound rotor 31, the a pair of wound rotor end cap 331 of taking axle out of, 332, wound rotor sleeve 32 and collector ring 34, wound rotor sleeve 32 is by being welded to connect in wound rotor 31 skins, be configured as integrative-structure with wound rotor 31, described integrative-structure is by some bolts 35 and a pair of wound rotor end cap 331 of taking axle out of, 332 is fixedly connected, be configured as two ends and take the integral body of axle out of, wherein one bring out and be fixedly connected with collector ring 34 on the axle, the other end shaft 36 stretches out the second support end cap 22 fixedlys connected with first fan blade 52, and two shafts are by bearing 9 and a pair of support end cap 21,22 roll connects, the coaxial heart of wound rotor assembly is nested in the support 1, collector ring 34 is connected with the winding of wound rotor 31, and keeps in touch with carbon brush 6.
In the present embodiment, take out of on the wound rotor end cap 331,332 of axle and offer vent hole (figure do not show), in order to ventilation and heat, alleviate the wound rotor overall weight.
In the present embodiment, wound rotor 31 adopts skewed slot and double-deck short distance fractional-slot winding, to weaken the starting reluctance torque that causes by slot effect greatly, reduce the vibration and the noise of motor, the reduced harmonic electromotive force improves the stationarity of motor, the stray loss that reduces motor, saving end copper consumption etc.Simultaneously winding being connected into the Y type connects to eliminate 3 times and multiple subharmonic electromotive force and harmonic circulating current that causes thus and stray loss.
In the present embodiment, described p-m rotor assembly comprises p-m rotor 41 and axle 42, as shown in Figure 2, described p-m rotor is made of iron core 411 and permanent magnet 412, offer even number cuboid groove on the iron core 411, the permanent magnet 412 of corresponding number directly embeds in the described cuboid groove, be configured as one with iron core 411, described p-m rotor and axle 42 are configured as one by hot cover process, as shown in Figure 1, axle 42 is by bearing 8 and a pair of wound rotor end cap 331 of taking axle out of, 332 roll connects, and the coaxial heart of described p-m rotor assembly is nested in the described wound rotor assembly, and an end of axle 42 stretches out the first support end cap 21 fixedlys connected with second fan blade 51.
In the present embodiment, for obtaining higher air gap flux density, p-m rotor 41 is selected the tangential rotor structure for use, and every two adjacent permanent magnet 412 magnetic poles are opposite, form the magneticfocusing magnetic pole, and the permanent magnet simple shape, and processing is simple, can shorten fabrication cycle.The rotating pole-piece of tradition tangential structure needs burst to install, long processing time and reliability are low, in order to simplify technology and enhance mechanical strength, the present invention adopts the built-in tangential permanent magnetic structure of simplification, directly embed permanent magnet in the iron core, adopt non-magnetic stainless steel shaft to reduce leakage field simultaneously, preferably, the number of the described permanent magnet in the present embodiment is eight.
More than disclosed only be the specific embodiment of the present invention; only be used for the present invention is illustrated; can not limit the present invention's protection domain with this; those skilled in the art can carry out various modifications, variation or replacement under the prerequisite that does not break away from essence of the present invention; therefore; according to the various equivalent variations that the present invention did, still belong to the scope that the present invention is contained.
Claims (9)
1. permanent-magnetic wind driven generator, comprise support, be connected in a pair of support end cap at described support two ends, carbon brush and electric energy lighting outlet, it is characterized in that, described permanent-magnetic wind driven generator also comprises the wound rotor assembly, p-m rotor assembly and a pair of fan blade with opposite angle of yaw, the coaxial heart of described p-m rotor assembly is nested in the described wound rotor assembly, described wound rotor assembly is nested in the described support by the coaxial heart of described a pair of support endcap support, described carbon brush and described wound rotor assembly keep in touch, and be fixedly connected on the sidewall of the first described support end cap, described electric energy lighting outlet is connected with described carbon brush, and draw by the corresponding aperture on the described support, described a pair of fan blade with opposite angle of yaw is fixedlyed connected with the p-m rotor assembly with described wound rotor assembly respectively.
2. permanent-magnetic wind driven generator as claimed in claim 1, it is characterized in that, described wound rotor assembly comprises wound rotor, the a pair of wound rotor end cap of taking axle out of, wound rotor sleeve and collector ring, described wound rotor sleeve is by being welded to connect in described wound rotor skin, be configured as integrative-structure with described wound rotor, described integrative-structure is fixedlyed connected with the described a pair of wound rotor end cap of taking axle out of by bolt, be configured as two ends and take the integral body of axle out of, wherein one bring out and be fixedly connected with described collector ring on the axle, the other end shaft stretches out the second described support end cap fixedlys connected with the first described fan blade, and two shafts roll with described a pair of support end cap by bearing and are connected, the coaxial heart of wound rotor assembly is nested in the described support, described collector ring is connected with the winding of described wound rotor, and keeps in touch with described carbon brush.
3. permanent-magnetic wind driven generator as claimed in claim 2 is characterized in that, described take out of the axle the wound rotor end cap on offer vent hole.
4. permanent-magnetic wind driven generator as claimed in claim 2 is characterized in that, described wound rotor adopts skewed slot and double-deck short distance fractional-slot winding.
5. permanent-magnetic wind driven generator as claimed in claim 4 is characterized in that, described winding connects for the Y type.
6. permanent-magnetic wind driven generator as claimed in claim 2, it is characterized in that, described p-m rotor assembly comprises p-m rotor and axle, described p-m rotor is made of iron core and permanent magnet, offer even number cuboid groove on the described iron core, the permanent magnet of corresponding number directly embeds in the described cuboid groove, be configured as one with described iron core, described p-m rotor and axle are configured as one by hot cover process, described axle rolls with the described a pair of wound rotor end cap of taking axle out of by bearing and is connected, the coaxial heart of described p-m rotor assembly is nested in the described wound rotor assembly, and an end of described axle stretches out the first described support end cap fixedlys connected with the second described fan blade.
7. permanent-magnetic wind driven generator as claimed in claim 6 is characterized in that, described p-m rotor is the tangential rotor structure, and the magnetic pole of every adjacent permanent magnet is opposite, forms the magneticfocusing magnetic pole.
8. permanent-magnetic wind driven generator as claimed in claim 6 is characterized in that, described axle is non-magnetic stainless steel.
9. permanent-magnetic wind driven generator as claimed in claim 6 is characterized in that, described even number is eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910258589A CN101705917A (en) | 2009-12-13 | 2009-12-13 | Permanent-magnetic wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910258589A CN101705917A (en) | 2009-12-13 | 2009-12-13 | Permanent-magnetic wind driven generator |
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| Publication Number | Publication Date |
|---|---|
| CN101705917A true CN101705917A (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910258589A Pending CN101705917A (en) | 2009-12-13 | 2009-12-13 | Permanent-magnetic wind driven generator |
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| CN (1) | CN101705917A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023214A (en) * | 2012-12-11 | 2013-04-03 | 宁波长城电机制造厂 | Treadmill motor |
| CN103659153A (en) * | 2012-09-17 | 2014-03-26 | 上海南洋电机有限公司 | On-site maintenance method for wind-driven generator |
| CN104196897A (en) * | 2014-08-01 | 2014-12-10 | 胡勋芳 | End cover structure adaptive to motor installing structures |
| CN104196750A (en) * | 2014-09-01 | 2014-12-10 | 青蛙泵业有限公司 | Deep-well pump rotor long shaft and machining process thereof |
| CN108282064A (en) * | 2018-02-09 | 2018-07-13 | 齐鲁工业大学 | A kind of exchange and permanent magnetism mixing excitation doubly-fed wind turbine and electricity generation system |
| CN110537020A (en) * | 2017-01-23 | 2019-12-03 | 劳格文温德有限公司 | Wind power system with low EMI |
| CN110556988A (en) * | 2019-10-22 | 2019-12-10 | 青岛厚德新能源科技开发有限公司 | Double-rotor generator |
| CN115065182A (en) * | 2022-06-20 | 2022-09-16 | 国网重庆市电力公司电力科学研究院 | Novel built-in permanent magnet motor rotor |
-
2009
- 2009-12-13 CN CN200910258589A patent/CN101705917A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659153A (en) * | 2012-09-17 | 2014-03-26 | 上海南洋电机有限公司 | On-site maintenance method for wind-driven generator |
| CN103659153B (en) * | 2012-09-17 | 2016-02-10 | 上海南洋电机有限公司 | A kind of on-site maintenance method of wind-driven generator |
| CN103023214A (en) * | 2012-12-11 | 2013-04-03 | 宁波长城电机制造厂 | Treadmill motor |
| CN103023214B (en) * | 2012-12-11 | 2015-04-15 | 宁波长城电机制造厂 | Treadmill motor |
| CN104196897A (en) * | 2014-08-01 | 2014-12-10 | 胡勋芳 | End cover structure adaptive to motor installing structures |
| CN104196750A (en) * | 2014-09-01 | 2014-12-10 | 青蛙泵业有限公司 | Deep-well pump rotor long shaft and machining process thereof |
| CN110537020A (en) * | 2017-01-23 | 2019-12-03 | 劳格文温德有限公司 | Wind power system with low EMI |
| CN110537020B (en) * | 2017-01-23 | 2022-04-19 | 劳格文温德有限公司 | Wind power system with low electromagnetic interference |
| CN108282064A (en) * | 2018-02-09 | 2018-07-13 | 齐鲁工业大学 | A kind of exchange and permanent magnetism mixing excitation doubly-fed wind turbine and electricity generation system |
| CN108282064B (en) * | 2018-02-09 | 2019-04-12 | 齐鲁工业大学 | A kind of exchange and permanent magnetism mixing excitation doubly-fed wind turbine and electricity generation system |
| CN110556988A (en) * | 2019-10-22 | 2019-12-10 | 青岛厚德新能源科技开发有限公司 | Double-rotor generator |
| CN115065182A (en) * | 2022-06-20 | 2022-09-16 | 国网重庆市电力公司电力科学研究院 | Novel built-in permanent magnet motor rotor |
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Open date: 20100512 |