CN202231587U - Electrical excitation and hybrid excitation wind driven generator - Google Patents
Electrical excitation and hybrid excitation wind driven generator Download PDFInfo
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- CN202231587U CN202231587U CN2011203293129U CN201120329312U CN202231587U CN 202231587 U CN202231587 U CN 202231587U CN 2011203293129 U CN2011203293129 U CN 2011203293129U CN 201120329312 U CN201120329312 U CN 201120329312U CN 202231587 U CN202231587 U CN 202231587U
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Abstract
The utility model relates to an electrical excitation wind driven generator, which comprises a rotor, a stator, a front end cover, a rear end cover and a generator casing. The stator is sleeved outside the rotor, and an air gap is arranged between the stator and the rotor. The rotor comprises a rotary shaft, a coil base, an excitation coil and claw poles. The coil base is sleeved on the rotary shaft and fixedly arranged on the rear end cover, and the excitation coil is arranged in the coil base. The claw poles are sleeved outside the coil base, the claw poles are provided with a driving end claw pole and an electrical end claw pole, the driving end claw pole is fixedly arranged on the rotary shaft, and a gap is arranged between the driving end claw pole and the electrical end claw pole and the driving end claw pole and the electrical end claw pole are connected through a non-magnetic-conducting isolation body. The coil base and an electrical end claw pole connector position are arranged in stair shapes matched with each other. An air gap is arranged between the coil base and the rotary shaft, an air gap is arranged between the coil base and the electrical end claw pole, and an air gap is arranged between the coil base and the driving end claw pole. The electrical excitation and hybrid excitation wind driven generator uses electrical excitation and hybrid excitation to generate electricity, and the wind driven generator has no resistance in starting. Under the condition of low wind speed, fan blades are easy to start, pre-starting angles of the fan blades are not required to consider in advance, and the electrical excitation and hybrid excitation wind driven generator is convenient to control, good in stability, suitable for severe environment, high in heat resistance, easy to manufacture and low in cost and loss, and service life of the electrical excitation and hybrid excitation wind driven generator is more than two times as long as that of a pure permanent magnetic generator.
Description
Technical field
The utility model relates to a kind of wind power generation machine technology, the wind-driven generator of particularly a kind of electric excitation and compound rectifier excitation.
Background technology
Existing direct-drive aerogenerator changes f and all makes magnetic pole with pure permanent magnets such as neodymium iron borons mostly, sends electricity with the stator cutting magnetic induction line in the wind power generator rotor rotary course, with the wind-driven generator of pure permanent magnet making; Certain resistance of start is arranged during starting, starting difficulty, cost is high; Heatproof is low, and is affected by environment big, limited by the time limit; Field decay, loss of excitation reduces power easily.The patent No. is 201010106667.1, and patent name discloses a kind of claw-pole motor for the utility model patent of " a kind of claw-pole motor ", and the claw-pole motor of this mechanism is complex structure not only; Need structures such as brush and slip ring to work; The most key is that the magnetic inversion line snare is outside at the yoke core rod, and the two ends of yoke core rod are assembled together with the electricity end pawl utmost point with driving the end pawl utmost point respectively, and the magnet steel assembly is held in the mouth to be driven between the end pawl utmost point and the electricity end pawl utmost point; Generator is when excited work; Can cancel out each other in the magnetic field that produces between magnet steel assembly and the yoke coil, even magnetic flux directly gets into S utmost point pawl from N utmost point pawl, the generation short circuit.
The utility model content
The purpose of the utility model is the deficiency to permanent-magnetic wind driven generator and existing Lundell wind-driven generator, and a kind of Lundell electricity excitation and compound rectifier excitation wind-driven generator are provided.
The technical scheme of the utility model is: a kind of electric excitation wind-driven generator; Comprise rotor, stator, front end housing, rear end cap and generator body; Stator is set in the outside of rotor, is provided with air gap between the two, and described rotor comprises rotating shaft, coil holder, magnet exciting coil and the pawl utmost point; Described coil holder is set in rotating shaft and is installed on the rear end cap, and magnet exciting coil is installed in the coil holder; The described pawl utmost point is set in the coil holder outside, and the pawl utmost point is provided with and drives the end pawl utmost point and the electricity end pawl utmost point, drives and holds the pawl utmost point to be installed in the rotating shaft, drives to be provided with the gap and to pass through non-magnetic conduction slider between the end pawl utmost point and the electricity end pawl utmost point to connect; It is step-like that described coil holder and electricity end pawl utmost point interface are set to mate; Wherein, be provided with air gap between coil holder and the rotating shaft, be provided with air gap between the coil holder and the electricity end pawl utmost point, coil holder is provided with air gap with driving to hold between the pawl utmost point.
Preferably: said coil is provided with a cylindrical seat of the permanent magnet, wherein the excitation coil is embedded in the coil holder outside of urea-, urea-permanent magnet embedded in the inside of the coil holder.
Preferably: each pawl of the described pawl utmost point is set to trapezoidal column.
Preferably: the described pawl utmost point is set to the dog utmost point, and each pawl of the dog utmost point is set to the parallelogram post.
The beneficial effect of the utility model is: this patent adopts electric excitation and compound rectifier excitation generating, wind-driven generator starting non-resistance, and under low wind speed, the fan blade starting is very easy to; Need not to consider the starting angle in advance of blade, be convenient to control, good stability; Be suitable for adverse circumstances, heatproof is high, and is easy to manufacture; Cost is low, and loss is low, exceeds useful life more than the twice of pure permanent magnet generator.The driving claw utmost point and the electricity end pawl utmost point are housed in the rotating shaft, and the driving claw utmost point is connected (the driving claw utmost point is consistent with electricity end pawl utmost point pawl type) with the electricity end pawl utmost point through non-magnetic conduction slider, constitutes rotor.The driving claw utmost point and electricity end pawl utmost point combined crosswise; Connect with non-magnetic conduction slider; And certain interval arranged, the air gap distance between the pawl utmost point and the stator core less than about gap between two pawls, about gap between two pawls can prevent that magnetic flux from directly getting into S utmost point pawl from N utmost point pawl; Produce short circuit, can also slacken high order harmonic component electromotive force and high order slot ripples electromotive force.The common pawl pole field of dog ultimate ratio area is big, and efficient is high slightly.Non-magnetic conduction slider connects the pawl utmost point, plays the fixed connection effect, also can prevent leakage field.The utility model is a kind of for comprising the compound rectifier excitation coil holder of permanent magnet, and the another kind of electric excitation wire ring support that does not comprise permanent magnet is in the winding behind the magnet exciting coil; Constitute the excitation winding of two kinds of forms; The excitation wire ring support is fixed by bolts on the wind-driven generator rear end cap, and magnet exciting coil the end of a thread is drawn from rear end cap, has saved brush and slip ring; Reduced mechanical loss, improved useful life greatly.Coil holder and pawl have the effect that stores magnetic field fully, and after generator energising once, magnetic field is preserved the magnetic field that is not less than 2000 hours and stored on its material, has reduced excitation loss.The compound rectifier excitation coil holder comprises the advantage of electric excitation wire ring support, and the coil holder inwall is embedded with permanent magnet, excitation at the beginning of generator need not; The electromagnetism that leans on the permanent magnet generation is according to different rotating speed meeting automatic Regulation, and on the structure of this composite excitation, permanent magnet can not receive the time limit or Influence of Temperature and loss of excitation; Because it mixes with electromagnetism, the energising back produces electromagnetism and replenishes magnetic field automatically can for it, and magnetic field stores very stable; Generator need not excitation winding work when high rotating speed, can accomplish no excitation generating.
Description of drawings
Fig. 1 is the cutaway view of the utility model Lundell electricity excitation unit rotor
Fig. 2 is the cutaway view of the utility model Lundell compound rectifier excitation device rotor
Fig. 3 is the cutaway view of the protruding Lundell electricity of the utility model excitation unit rotor
Fig. 4 is the cutaway view of the protruding Lundell compound rectifier excitation of the utility model device rotor
Fig. 5 is the cutaway view of the utility model general assembly
Fig. 6 is the utility model claw-pole rotor profile design sketch
Fig. 7 is the protruding Lundell rotor profile of a utility model design sketch
Fig. 8 is the utility model magnet exciting coil profile winding diagram
Fig. 9 is the brushless compound rectifier excitation rotor structure of a utility model cutaway view
Embodiment
Embodiment below in conjunction with description of drawings the utility model:
Like Fig. 1,3,6, shown in 7; A kind of electric excitation wind-driven generator; Comprise rotor 1, stator 2, front end housing 3, rear end cap 4 and generator body 5; Stator 2 is set in the outside of rotor 1, is provided with air gap between the two, and described rotor 1 comprises rotating shaft 6, coil holder 7, magnet exciting coil 8 and the pawl utmost point; Described coil holder 7 is set in rotating shaft 6 and is installed on the rear end cap 4, and magnet exciting coil 8 is installed in the coil holder 7; The described pawl utmost point is set in coil holder 7 outsides, and the pawl utmost point is provided with and drives the end pawl utmost point 9 and the electricity end pawl utmost point 10, drives and holds the pawl utmost point 9 to be installed in the rotating shaft 6, drives to be provided with the gap and to pass through non-magnetic conduction slider 11 between the end pawl utmost point 9 and the electricity end pawl utmost point 10 to connect; It is step-like that described coil holder 7 and the electricity end pawl utmost point 10 interfaces are set to mate; Wherein, be provided with air gap 12 between coil holder 7 and the rotating shaft 6, be provided with air gap 13 between the coil holder 7 and the electricity end pawl utmost point 10, coil holder 7 is provided with air gap 14 with driving to hold between the pawl utmost point 9.Like Fig. 1,3, shown in 6: each pawl of the described pawl utmost point is set to trapezoidal column.Like Fig. 1,3, shown in 7: the described pawl utmost point is set to the dog utmost point, and each pawl of the dog utmost point is set to the parallelogram post.
Blade of wind-driven generator facings the wind and rotates, and when driving rotor rotation, reaches certain rotating speed; Lean on the remanent magnetism cutting magnetic line in the rotor, make the generator unit stator winding produce voltage, get into controller; Export exciting voltage again, insert excitation winding, set up voltage and begin excitation; Also can adjust excitation winding, exciting current automatically, make the stable voltage of wind-driven generator output according to different rotating speeds.
Coil holder 7 has air gap 13 with the interface of the electricity end pawl utmost point 10, and it is step-like that interface is, and helps magnetic field to pass to smoothly and drive on the end pawl utmost point 9, prevents leakage field; Magnet exciting coil 8 is motionless to be the fixed position, is fixed on the commutator end bearing support bracket 4, and rotating shaft 6 has certain air gap 12 with coil holder 7, when magnet exciting coil 8 is logical when going up direct current; Electromagnetic field passes in the rotating shaft 6 through air gap, imports into from coil holder 7 and drives the end pawl utmost point 9 formation N utmost points, imports the electricity end pawl utmost point 10 into and forms the S utmost points, makes the epitrochanterian pawl utmost point produce the magnetic field of the N utmost point and the S utmost point; Formed brushless structure, when rotor rotates, cutting magnetic line generating, send electricity after; Stator winding has been accomplished self-excitation through controller, because the rotor alloy material, work once; Will store certain magnetic field on extremely at pawl, when rotating next time, need not to adopt electricity to magnetize again.
As shown in FIG 2,4,5,6,7,9, a composite excitation wind generator, said coil holder 7 is provided with a cylindrical permanent magnet 15, wherein the field coil 8 is fitted to the coil urea- external seat 7, urea-permanent magnets 15 embedded in the inside of the coil holder 7.Like Fig. 2,4, shown in 6: each pawl of the described pawl utmost point is set to trapezoidal column.Like Fig. 3,4, shown in 7: the described pawl utmost point is set to the dog utmost point, and each pawl of the dog utmost point is set to the parallelogram post.
The length of magnet exciting coil 8 is consistent with the length of permanent magnet 15, is installed in the center of electromagnetism winding, and magnetizing direction is to magnetize in two ends, and the A end is the N utmost point; The B end is the S utmost point, and the centre bore of permanent magnet 15 is through on the machine shaft 6, and with machine shaft 6 certain air gap is arranged; Be provided with air gap 12 between the coil holder 7 and the electricity end pawl utmost point 10, coil holder 7 is provided with air gap 14 with driving to hold between the pawl utmost point 9, and magnetic field is passed in the rotating shaft 6 through air gap; Around last magnet exciting coil 8, pass to drive on the end pawl utmost point 9 through air gap and be the N utmost point on the coil holder 7, through air gap magnetic field is passed on the electricity end pawl utmost point 10 and be the S utmost point; After controller is to the excitation winding energising, can strengthen magnetic field intensity, generator is in power generation process; When needs stop, can stator and rotor can be realized electromagnetic braking fully through controller, make the shutdown at short notice of wind-driven generator; When low-speed running maybe need strengthen excitation field, connect excitation winding automatically through controller, magnetic field intensity is increased; When rotating speed raises, need weaken the exciting current of excitation winding, even cut off exciting current, help controlling the size of generator power, significantly reduced exciting power, make the voltage control of generator more stable.Adopt this mode, generator need not excitation just, and the electromagnetism that leans on the permanent magnet generation is according to different rotating speed meeting automatic Regulation; On the structure of this composite excitation, permanent magnet can not receive the time limit or Influence of Temperature and loss of excitation, because it mixes with electromagnetism; The energising back produces electromagnetism and replenishes magnetic field automatically can for it, and magnetic field stores very stable, compares with the full wind-driven generator of permanent-magnet structure that leans on; Pure permanent-magnet structure can be according to Influence of Temperature ultralow temperature or high temperature or year problem of a specified duration; Loss of excitation is decayed the power of generator under different situations voluntarily, reduces useful life.
Claims (4)
1. electric excitation wind-driven generator; Comprise rotor, stator, front end housing, rear end cap and generator body; Stator is set in the outside of rotor, is provided with air gap between the two, it is characterized in that: described rotor comprises rotating shaft, coil holder, magnet exciting coil and the pawl utmost point; Described coil holder is set in rotating shaft and is installed on the rear end cap, and magnet exciting coil is installed in the coil holder; The described pawl utmost point is set in the coil holder outside, and the pawl utmost point is provided with and drives the end pawl utmost point and the electricity end pawl utmost point, drives and holds the pawl utmost point to be installed in the rotating shaft, drives to be provided with the gap and to pass through non-magnetic conduction slider between the end pawl utmost point and the electricity end pawl utmost point to connect; It is step-like that described coil holder and electricity end pawl utmost point interface are set to mate; Wherein, be provided with air gap between coil holder and the rotating shaft, be provided with air gap between the coil holder and the electricity end pawl utmost point, coil holder is provided with air gap with driving to hold between the pawl utmost point.
(2) as claimed in claim 1, wherein the wind generator, characterized in that: said coil base is provided with a cylindrical permanent magnet, wherein the excitation coil is embedded in the coil holder outside of urea-, urea-permanent magnets embedded in the coil seat interior.
3. according to claim 1 or claim 2 wind-driven generator, it is characterized in that: each pawl of the described pawl utmost point is set to trapezoidal column.
4. according to claim 1 or claim 2 wind-driven generator, it is characterized in that: the described pawl utmost point is set to the dog utmost point, and each pawl of the dog utmost point is set to the parallelogram post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203293129U CN202231587U (en) | 2011-09-05 | 2011-09-05 | Electrical excitation and hybrid excitation wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203293129U CN202231587U (en) | 2011-09-05 | 2011-09-05 | Electrical excitation and hybrid excitation wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202231587U true CN202231587U (en) | 2012-05-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203293129U Expired - Fee Related CN202231587U (en) | 2011-09-05 | 2011-09-05 | Electrical excitation and hybrid excitation wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202231587U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299598A (en) * | 2011-09-05 | 2011-12-28 | 青岛敏深风电科技有限公司 | Electrically excited and composite excited wind-driven generator |
| CN106130311A (en) * | 2016-06-29 | 2016-11-16 | 清华大学 | One has eddy-current brake and takes the bifunctional electromagnetic brake motor that can generate electricity |
| CN107546874A (en) * | 2016-06-29 | 2018-01-05 | 上海茂昂智能科技股份有限公司 | A kind of low startup formula generator of low startup formula generator |
| CN110535314A (en) * | 2019-08-30 | 2019-12-03 | 邢台职业技术学院 | Automobile series circuit hybrid excitation generator |
-
2011
- 2011-09-05 CN CN2011203293129U patent/CN202231587U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299598A (en) * | 2011-09-05 | 2011-12-28 | 青岛敏深风电科技有限公司 | Electrically excited and composite excited wind-driven generator |
| CN106130311A (en) * | 2016-06-29 | 2016-11-16 | 清华大学 | One has eddy-current brake and takes the bifunctional electromagnetic brake motor that can generate electricity |
| CN107546874A (en) * | 2016-06-29 | 2018-01-05 | 上海茂昂智能科技股份有限公司 | A kind of low startup formula generator of low startup formula generator |
| CN110535314A (en) * | 2019-08-30 | 2019-12-03 | 邢台职业技术学院 | Automobile series circuit hybrid excitation generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20170905 |