CN2850124Y - Improved permanent magnet DC brushless speed change constant voltage wind driven generator - Google Patents
Improved permanent magnet DC brushless speed change constant voltage wind driven generator Download PDFInfo
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- CN2850124Y CN2850124Y CN 200620004649 CN200620004649U CN2850124Y CN 2850124 Y CN2850124 Y CN 2850124Y CN 200620004649 CN200620004649 CN 200620004649 CN 200620004649 U CN200620004649 U CN 200620004649U CN 2850124 Y CN2850124 Y CN 2850124Y
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Abstract
The utility model relates to an improved permanent-magnet DC brushless speed-change constant-voltage wind power generator. The utility model is driven by a speed-change wind wheel, and sent constant-voltage DC power can be transported to an electric net after the frequency conversion of an inverter. The generator comprises a stator, a rotor and a multiple-phase full-wave rectifier, wherein the stator comprises an armature iron core, windings which are arranged in the armature iron core and an iron core installing frame which is used for installing the armature iron core; the rotor can be arranged on the stator in a rotary mode and is driven by the speed-change wind wheel to rotate, the rotor comprises a permanent magnetic pole and a magnetic pole fixing frame which is used for installing the permanent magnetic pole; the multiple-phase full-wave rectifier is connected with the output end of the winding, electric currents are output to the inverter after the electric currents are rectified by the multiple-phase full-wave rectifier, a plurality of containing grooves are formed on the armature iron core, the windings are arranged in the containing grooves, and the ratio of the depth and the width of the containing groove is greater than 6: 1. The generator has no need to increase any additional devices or control circuits and can realize the constant voltage output. The utility model has the advantages of simple structure, low cost, high conversion efficiency and small harmonic component and is especially suitable for a large speed-change wind power generator.
Description
Technical field:
The utility model relates to a kind of generator, relates in particular to a kind of permanent-magnet DC brushless variable speed constant-pressure wind power generator that is driven by the speed change wind wheel.
Background technology:
The grid type wind-driven generator is the mechanical energy that wind wheel is caught to be converted into electric energy and to be transported in constant voltage, the constant frequency electrical network to go.When the high-power electric and electronic technology was not mature enough, frequency, voltage that the change generator sends wind-powered electricity generation were very difficult.In order to be delivered directly to wind-powered electricity generation in the electrical network, only select alternating current asynchronous generator or synchronous alternating-current generator for use with the electrical network same frequency.Asynchronous generator can only operate in above 1%～4% left and right sides speed discrepancy scope of synchronous speed, and synchronous generator can only operate in synchronous speed.In order to make generator frequency be fit to electrical network, must be connected with the constant speed wind wheel with the gear box of big gear ratio, the frequency of rotating speed, wind-powered electricity generation and the electrical network of wind wheel and generator all is complementary.The advantage of these two kinds of motors is directly to be incorporated into the power networks without inversion, but have many deficiencies: 1, the power-rotary speed property of motor is harder, be difficult for mating well, also be difficult to improve capturing wind energy efficient to absorb wind energy to greatest extent with the output characteristic curve of wind wheel; 2, when being incorporated into the power networks, easily unit and electrical network are impacted; 3, owing to the unsteadiness of wind speed, easily gear box is produced impact and makes gear box damage the maintenance cost height; 4, generator will often be in shutdown, low speed generating, the frequent input of generating electricity at a high speed, cut out state, and control is complicated, easy break-down; 5, generator no-load loss when hanging down load is bigger, efficient when being difficult to improve underloading, and high efficient area is little, and can only be driven by the lower constant speed wind wheel of average seizure wind energy efficiency.For synchronous generator, a cover field power supply and a control system thereof need be arranged also.Therefore both efficient was not high enough for this electricity generating plan, and was extremely uneconomical; Complex structure has increased production cost again.
Catch the efficient of wind energy in order to improve wind wheel, consider,, can design the speed change wind wheel that almost under all wind regime, all has the higher-energy conversion efficiency by optimizing from the aerodynamics angle.Test shows that when mean wind speed 6.7m/s, the speed change wind wheel is than the wind energy of the constant speed wind wheel seizure of Duoing 15%.Along with the development of power electronic technology, the high power AC converter technique is applied, and the voltage stabilizing of high-power wind turbine and frequency conversion are incorporated into the power networks and can be realized, so the frequency of wind speed round and rotation speed change and electrical network does not have inevitable direct relation.For this reason, each manufacturer develops the novel wind-driven generator that is driven by the speed change wind wheel again in the world, E-30 that V66 wind energy conversion system of producing as Vestas company and Enercon company produce and E-66/1.8 wind-driven generator etc.The V66 wind energy conversion system can make it be in optimum state all the time according to wind regime control slurry elongation, thereby has improved energy output, and system noise is also controlled.Wind wheel power is delivered to double-fed asynchronous generator by gear box and coupling.This unit has adopted the optimum speed control technology that is called VCS (Vestas Converter System), can guarantee the stable electrical power of unit output.VCS is by the asynchronous generator with wound rotor and slip ring, adopts power inverter, contactor and the protective device of IGBT (insulated gate transistor) switch to form by one.VCS can make the running speed excursion reach 60% of rated speed.With the VCS technology is that the double-fed asynchronous generator of representative can be converted into electric energy to the wind energy that the speed change wind wheel is caught as much as possible, increases energy output, keeps the low noise operation, reduce gear box load, but its weak point is: rotor has slip ring, and complex structure is difficult to save gear box and directly drives operation.
Wind-driven generators such as E-30 that Enercon company produces and E-66/1.8 all adopt and directly drive speed change electricity excitation synchronous generator, this generator is by adjusting the purpose that exciting current reaches speed change voltage stabilizing output, realize rectification, the inversion grid connection of AC-DC-AC by heavy-duty rectifier, inverter, though brought into play the advantage of speed change wind wheel, but it must have slip ring and excitation system, complex structure is produced and the operating cost height.
In addition, State Intellectual Property Office's disclosed CN1649239 application for a patent for invention on August 3rd, 2005, a kind of " the MW level directly drives the permanent-magnetic outer rotor synchro wind generator " disclosed, the excitation system of described generator is a permanent magnet, and directly drive external rotor, saved structures such as the excitation system of electric excitation synchronous generator and slip ring.But this patent does not disclose the voltage regulation way of variable speed permanent magnetism generator before electric energy is incorporated into the power networks.
For realizing the voltage stabilizing output of permanent magnet generator, some solutions have been proposed in the prior art.As disclosed No. 95111026.8 applications for a patent for invention in State Intellectual Property Office's on October 30th, 1996, a kind of voltage stabilization permanent magneto generator and method for stabilizing voltage thereof are disclosed.Described generator comprises stator, rotor, worm-and-wheel gear, actuating motor and sampling control circuit, rotor is connected with the output shaft of engine, the sampling control circuit is connected with the generator voltage output, actuating motor is connected with the sampling control circuit, actuating motor drives a rhizoid thick stick by worm-and-wheel gear and does axial motion, and an end and the stator of this leading screw fix.Its method for stabilizing voltage is to adjust the relative position of generator amature, stator by control circuit and pressure regulation actuator according to load variations, thereby changes the magnetic field couple state between stator and rotor, realizes voltage stabilizing output.The shortcoming of this method is: 1, owing to need set up sampling control circuit and many equipment such as pressure regulation actuator, actuating motor, control system and mechanical structure are all comparatively complicated, have improved production cost greatly; 2, because it has complicated pressure regulation actuator, be difficult in high-rating generator (for example MW class wind turbine) and go up application (because if high-rating generator adopts this method pressure regulation, pressure regulation actuator will be very huge, textural anomaly is heavy, is difficult to realize).In addition, on September 11st, 1999, Granted publication 95239710.2 utility model patents also disclosed a kind of voltage stabilization permanent magneto generator, and described generator has and the similar structure of aforementioned patent, adopts the realization voltage stabilizing that uses the same method; Disclosed CN1262547 application for a patent for invention on August 9th, 2000, a kind of permanent magnet generator method for stabilizing output voltage and voltage stabilization permanent magneto generator are disclosed, it is by being arranged on the acting in conjunction of back-moving spring, balancing spring and spring adjusting nut on the same axis, thereby the relative shift of regulating between stator and the rotor is realized voltage stabilizing, and the essence of its method for stabilizing voltage is identical with aforementioned patent.Therefore all there are above-mentioned many deficiencies in the disclosed method for stabilizing voltage of these patents.
The utility model content:
The technical problems to be solved in the utility model is, overcome many deficiencies of above-mentioned prior art, provide a kind of need that generator is optimized Electromagnetic Design, need not to increase the permanent-magnet DC brushless variable speed constant-pressure wind power generator that any optional equipment or control circuit can be realized constant voltage output.
The improved permanent-magnet DC brushless variable speed constant-pressure wind power generator that provides according to the utility model, drive by the speed change wind wheel, the constant voltage direct current that sends transfers to electrical network after the inverter frequency conversion, described generator comprises: a stator, comprise armature core, be installed on the winding in the described armature core and be used to install the iron core installing rack of described armature core: a rotor, be rotatably installed on the described stator, drive rotation by described speed change wind wheel, the magnetic pole fixed mount that it comprises permanent magnetism magnetic pole and is used to install described permanent magnetism magnetic pole; One heterogeneous full-wave rectifier connects the output of described winding, and it exports described inverter to after with current commutates again; Be formed with the multiple tracks storage tank on the described armature core, described winding is installed in the described storage tank, and the ratio of the degree of depth of described storage tank and width was greater than 6: 1
The improved permanent-magnet DC brushless variable speed constant-pressure wind power generator that provides according to the utility model also has following attached technical characterictic:
In a kind of preferred embodiment that the utility model provides, the slot wedge of installing in the described storage tank is a magnetic conductor, and it is closed in described winding in the described storage tank; The ratio of the degree of depth of described storage tank and width was greater than 8: 1, and a kind of preferred scheme is that the degree of depth of described storage tank is 10: 1 to 16: 1 with the ratio of width.
As a kind of by way of example of above-mentioned preferred embodiment, described generator is the outward rotation type generator, and described stator also comprises a fixed axis, and described iron core installing rack is fixed on the described fixed axis; Described magnetic pole fixed mount is made up of casing and the end cap that is installed on the casing two ends, and described permanent magnetism magnetic pole is fixed in the inboard of described casing, and described two end cap is installed on the described fixed axis by two rolling bearings.The middle part of described two end cap is formed with two annular flange flange that extend internally, and described rolling bearing is located between described annular flange flange and the described fixed axis.Described permanent magnetism magnetic pole adheres to the inner surface of described casing by adhesive.
As the another kind of by way of example of above-mentioned preferred embodiment, described generator is interior rotary type generator, and described rotor also comprises a rotating shaft, and described magnetic pole fixed mount is fixed on the described rotating shaft; Described iron core installing rack is made up of casing and the end cap that is installed on described casing two ends, and described armature core is fixed in the inboard of described casing; Described two end cap is installed on the described rotating shaft by two rolling bearings.The middle part of described two end cap is formed with two annular flange flange that extend internally, and described rolling bearing is located between described annular flange flange and the described rotating shaft.Described permanent magnetism magnetic pole adheres to the periphery of described magnetic pole fixed mount by adhesive.
The improved permanent-magnet DC brushless variable speed constant-pressure wind power generator that provides according to the utility model, because only by increasing dark, the wide leakage inductance reactance that recently increases winding of winding storage tank on the armature core, and rationally utilized the removal of magnetic property of armature reaction, thereby the realization voltage stabilizing, and guaranteed its voltage regulation result.Compared with prior art, on the one hand, this fully by optimizing the generator that the Electromagnetic Design parameter realizes voltage stabilizing, do not need to increase any detection, controlling unit and actuating motor etc., not only structure is greatly simplified, cost reduces greatly, and is highly suitable for the wind-driven generator that other method for stabilizing voltage can't be suitable for; On the other hand, overcome technology prejudice of the prior art.In the prior art, during the design generator,, improve the stability of generator output voltage when load variations, generally will make great efforts to reduce the leakage inductance reactance of winding for efficient and the power factor that improves generator.And invention thinking of the present utility model is just opposite with it---realize voltage stabilizing by increasing the leakage inductance reactance.Therefore not only realized tremendous technological break-through, reached the purpose of permanent-magnet variable-speed constant-voltage output with motor nature output characteristic at high-power DC brushless generator speed constant pressure output facet; And this novel unique design thought also provides more wide thinking to those of ordinary skill in the art to the voltage stabilizing of permanent magnet generator research and development.
According to the permanent-magnet DC brushless variable speed constant-pressure wind power generator that the utility model provides, can realize directly coupling coupling with the output characteristic of speed change wind wheel, the running speed wide ranges, excursion maximum, minimum working speed can reach 70% of maximum (top) speed.Both kept the high efficiency of permanent magnet generator, light, advantages of simple structure and simple, and can realize voltage stabilizing automatically again under speed change varying load situation, the constant voltage direct current that it sends only needs can be incorporated into the power networks through inversion.Reduced a large amount of electromechanics in the system and detected and adjusting device, not only simple in structure, reduce cost, also improved operational reliability.
The permanent-magnet DC brushless variable speed constant-pressure wind power generator that provides according to the utility model, the input-output characteristic that can realize self between speed change wind wheel and inverter mates with the input characteristics Automatic Optimal of speed change wind wheel output characteristic and inverter respectively, automatically choose optimal working point by its natural output characteristic, eliminated mechanical shock and the electrical impact process in the system, prolong the service life of generator, saved operating cost.
Permanent-magnet DC brushless variable speed constant-pressure wind power generator according to the utility model provides owing to realize speed constant pressure output automatically by its natural output characteristic, does not need chopper control, so harmonic component is little, only has the rectification harmonic wave, no copped wave harmonic wave before the inversion.After if some typhoon power generator group direct current energies compile in the wind energy turbine set again inversion transport to electrical network, not only DC power supply is compiled conveniently, and can eliminate most of harmonic wave after the complementation of rectification harmonic wave, reduces the harmonic pollution to electrical network.
Description of drawings:
The preferred embodiment that provides below in conjunction with accompanying drawing is elaborated to the utility model, wherein:
The application principle schematic diagram of the improved permanent-magnet DC brushless variable speed constant-pressure wind power generator that provides according to the utility model is provided Fig. 1;
Fig. 2 partly cuts open schematic diagram for the outward rotation type permanent magnet DC brushless variable speed constant-pressure wind power generator that provides according to the utility model;
Fig. 3 is the floor map of the armature stamping of outward rotation type permanent magnet DC brushless variable speed constant-pressure wind power generator shown in Figure 2;
Fig. 4 partly cuts open schematic diagram for the inward rotation type permanent magnet DC brushless variable speed constant-pressure wind power generator that provides according to the utility model;
Fig. 5 is the floor map of the armature stamping of inward rotation type permanent magnet DC brushless variable speed constant-pressure wind power generator shown in Figure 4.
Embodiment:
Referring to Fig. 1, the improved permanent-magnet DC brushless variable speed constant-pressure wind power generator 10 according to the utility model provides is driven by the speed change wind wheel, and the constant voltage direct current that sends transfers to electrical network 30 after inverter 20 frequency conversions.The concrete structure of speed change wind wheel and inverter and be all known technology with being connected of generator 10, mounting means and structure etc. repeats no more herein.
Referring to Fig. 2, described generator 10 comprises:
One stator 1 comprises armature core 11, is installed on the winding 12 in the described armature core 11 and is used to install the iron core installing rack 13 of described armature core 11;
One rotor 2 is rotatably installed on the described stator 1, drives rotation by described speed change wind wheel, the magnetic pole fixed mount 22 that it comprises permanent magnetism magnetic pole 21 and is used to install described permanent magnetism magnetic pole 21;
One heterogeneous full-wave rectifier 3 connects the output of described winding 12, and it exports described inverter 20 to after with current commutates again;
Described armature core 11 is overrided to form by the multi-disc armature stamping, referring to Fig. 3, there is shown the floor map of every armature stamping, be formed with multiple tracks storage tank 111 on the described armature core 11, described winding 12 is installed in the described storage tank 111, of the present utility model being characterised in that: the ratio of the degree of depth of described storage tank 111 and width is greater than 6: 1 (h among Fig. 3 is than b), so the leakage inductance reactance of armature winding 12 increases greatly, and utilizes this principle (seeing for details following) to realize voltage stabilizing.
Referring to Fig. 3, as the further improvement to said structure, the slot wedge of installing in the described storage tank 111 14 is a magnetic conductor, and it is closed in described winding 12 in the described storage tank 111.Select magnetic conductor can further increase the leakage inductance reactance of winding 12, thereby realize voltage stabilizing better as slot wedge.
In a kind of preferred embodiment that the utility model provides, the ratio of the degree of depth of described storage tank 111 and width was greater than 8: 1.The generating function that the depth-to-width ratio of storage tank is positioned at the armature core of this scope realizes voltage stabilizing better.
As a kind of execution mode of above-mentioned preferred embodiment, the degree of depth of described storage tank 111 is 10: 1 to 16: 1 with the ratio of width.The armature core that the depth-to-width ratio of storage tank is positioned at this scope more is applicable to the wind-driven generator that slewing range is bigger.
Referring to Fig. 2 and 3, in a kind of specific embodiments of the present utility model, described generator 10 is the outward rotation type generator, and described stator 1 also comprises a fixed axis 15, and described iron core installing rack 13 is fixed on the described fixed axis 15; Described magnetic pole fixed mount 22 is made up of casing 221 and the end cap 222 that is installed on casing 221 two ends, and described permanent magnetism magnetic pole 21 is fixed in the inboard of described casing 221, and described two end cap 222 is installed on the described fixed axis 15 by two rolling bearings 4.The middle part of described two end cap 222 is formed with two annular flange flange that extend internally 223, and described rolling bearing 4 is located between described annular flange flange 223 and the described fixed axis 15.The structure of described annular flange flange 223 can make things convenient for the installation of described rolling bearing 4 greatly.Described permanent magnetism magnetic pole 21 adheres to the inner surface of described casing 221 by adhesive, and is therefore easy for installation, reduced production cost.The generator of this structure, speed change wind wheel (not shown) directly or by another fixture is installed on the described casing 221, rotates thereby drive described rotor 2.
Referring to Figure 4 and 5, in another kind of specific embodiments of the present utility model, described generator 10 is interior rotary type generator, and described rotor 2 also comprises a rotating shaft 23, and described magnetic pole fixed mount 22 is fixed on the described rotating shaft 23; Described iron core installing rack 13 is made up of casing 131 and the end cap 132 that is installed on described casing 131 two ends, and described armature core 11 is fixed in the inboard of described casing 131; Described two end cap 132 is installed on the described rotating shaft 23 by two rolling bearings 4.The middle part of described two end cap 132 is formed with two annular flange flange that extend internally 133, and described rolling bearing 4 is located between described annular flange flange 133 and the described rotating shaft 23.The structure of described annular flange flange 133 can make things convenient for the installation of described rolling bearing 4 greatly.Described permanent magnetism magnetic pole 21 adheres to the periphery of described magnetic pole fixed mount 22 by adhesive, and is therefore easy for installation, reduced production cost.The generator of this structure, speed change wind wheel (not shown) directly or by another fixture is installed on the described rotating shaft 23, rotates thereby drive described rotor 2.
Mentality of designing that the utility model is concrete and realization principle are as follows: establishing permanent-magnet DC brushless variable speed constant-pressure wind power generator is minimum working speed n by the rotation speed change scope
0To the maximum functional rotation speed n
eThe speed change wind wheel drive, sending voltage is U
eDirect current transfer to electrical network through the inverter frequency conversion.When input speed n changes, electromotive force E=k
eN, armature winding leakage reactance X=f (n) are proportional to n to be changed, and output current also can increase along with the increase of n; When armature resistance R enough little (when calculating the internal resistance pressure drop, can omit resistance value), if can make armature winding leakage reactance pressure drop XI and electromotive force E=k
eN equivalent, variation synchronously can utilize reactance pressure drop voltage stabilizing, realize constant voltage output.
For realizing above-mentioned target, by minimum working speed n
0, the maximum functional rotation speed n
e, rated voltage U
e, rated current I
eDetermine the coefficient of potential Deng specified criteria
Make armature resistance perunit value R during Electromagnetic Design
*=0.02～0.04, armature voltage
Output current
Promptly
Then generator output voltage U=f (n)=E-XI promptly gets U=f (n)=U behind the substitution relevant parameter
e, realized utilizing reactance pressure drop voltage stabilizing, reach the purpose of constant voltage output.This shows that the utility model utilizes the reactance pressure drop to reach the purpose of automatic voltage regulation, has realized constant voltage output.For example: according to the mag-dynamo that the utility model provides, its rated power is 1500kW, rated voltage 1000V, initial working speed n
0=8.8rpm, high workload rotation speed n
e=22rpm.Armature winding is six cross streams windings, and rectifier is six phase full-wave rectifiers, and the casing external diameter is 4.8m, the external diameter of stator armature iron core is 4.5m, and motor pole number is the 2p=96 utmost point, core length l=750mm, dark, the wide ratio of armature storage tank is h: b=11.7: 1, and coefficient of potential k
e=113.64v/rpm, winding leakage reactance perunit value X when high workload rotating speed
*=1.5.This generating function realizes constant voltage output well.
Above preferred embodiment only supplies the usefulness of explanation the utility model, and is not to restriction of the present utility model.Those of ordinary skill in the art under guiding, also can make various distortion and conversion, so all equivalent technical solutions all belongs to protection range of the present utility model in not breaking away from spirit and scope of the present utility model.
Claims (10)
1, a kind of improved permanent-magnet DC brushless variable speed constant-pressure wind power generator is driven by the speed change wind wheel, and the constant voltage direct current that sends transfers to electrical network (30) after inverter (20) frequency conversion, and described generator (10) comprising:
One stator (1) comprises armature core (11), is installed on the winding (12) in the described armature core (11) and is used to install the iron core installing rack (13) of described armature core (11);
One rotor (2) is rotatably installed on the described stator (1), drives rotation by described speed change wind wheel, and it comprises permanent magnetism magnetic pole (21) and is used to install the magnetic pole fixed mount (22) of described permanent magnetism magnetic pole (21);
One heterogeneous full-wave rectifier (3) connects the output of described winding (12), and it exports described inverter (20) to after with current commutates again;
It is characterized in that: be formed with multiple tracks storage tank (111) on the described armature core (11), described winding (12) is installed in the described storage tank (111), and the degree of depth of described storage tank (111) and the ratio of width were greater than 6: 1.
2, improved permanent-magnet DC brushless variable speed constant-pressure wind power generator according to claim 1 is characterized in that: the slot wedge of installing in the described storage tank (111) (14) is a magnetic conductor, and it is closed in described winding (12) in the described storage tank (111).
3, improved permanent-magnet DC brushless variable speed constant-pressure wind power generator according to claim 1 is characterized in that: the degree of depth of described storage tank (111) and the ratio of width were greater than 8: 1.
4, improved permanent-magnet DC brushless variable speed constant-pressure wind power generator according to claim 3 is characterized in that: the degree of depth of described storage tank (111) is 10: 1 to 16: 1 with the ratio of width.
5, improved permanent-magnet DC brushless variable speed constant-pressure wind power generator according to claim 1 and 2, it is characterized in that: described generator is the outward rotation type generator, described stator (1) also comprises a fixed axis (15), and described iron core installing rack (13) is fixed on the described fixed axis (15); Described magnetic pole fixed mount (22) is made up of casing (221) and the end cap (222) that is installed on casing (221) two ends, described permanent magnetism magnetic pole (21) is fixed in the inboard of described casing (221), and described two end cap (222) is installed on the described fixed axis (15) by two rolling bearings (4).
6, improved permanent-magnet DC brushless variable speed constant-pressure wind power generator according to claim 5, it is characterized in that: the middle part of described two end cap (222) is formed with two annular flange flange that extend internally (223), and described rolling bearing (4) is located between described annular flange flange (223) and the described fixed axis (15).
7, improved permanent-magnet DC brushless variable speed constant-pressure wind power generator according to claim 5 is characterized in that: described permanent magnetism magnetic pole (21) adheres to the inner surface of described casing (221) by adhesive.
8, improved permanent-magnet DC brushless variable speed constant-pressure wind power generator according to claim 1 and 2, it is characterized in that: described generator (10) is interior rotary type generator, described rotor (2) also comprises a rotating shaft (23), and described magnetic pole fixed mount (22) is fixed on the described rotating shaft (23); Described iron core installing rack (13) is made up of casing (131) and the end cap (132) that is installed on described casing (131) two ends, and described armature core (11) is fixed in the inboard of described casing (131); Described two end cap (132) is installed on the described rotating shaft (23) by two rolling bearings (4).
9, improved permanent-magnet DC brushless variable speed constant-pressure wind power generator according to claim 8, it is characterized in that: the middle part of described two end cap (132) is formed with two annular flange flange that extend internally (133), and described rolling bearing (4) is located between described annular flange flange (133) and the described rotating shaft (23).
10, improved permanent-magnet DC brushless variable speed constant-pressure wind power generator according to claim 8 is characterized in that: described permanent magnetism magnetic pole (21) adheres to the periphery of described magnetic pole fixed mount (22) by adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620004649 CN2850124Y (en) | 2006-01-25 | 2006-03-30 | Improved permanent magnet DC brushless speed change constant voltage wind driven generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620001930.X | 2006-01-25 | ||
| CN200620001930 | 2006-01-25 | ||
| CN 200620004649 CN2850124Y (en) | 2006-01-25 | 2006-03-30 | Improved permanent magnet DC brushless speed change constant voltage wind driven generator |
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| Publication Number | Publication Date |
|---|---|
| CN2850124Y true CN2850124Y (en) | 2006-12-20 |
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ID=37522594
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|---|---|---|---|
| CN 200620004649 Expired - Lifetime CN2850124Y (en) | 2006-01-25 | 2006-03-30 | Improved permanent magnet DC brushless speed change constant voltage wind driven generator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426656C (en) * | 2006-01-25 | 2008-10-15 | 包头长安永磁电机研发有限公司 | Permanent-magnet DC brushless variable speed constant-pressure wind power generator and its voltage stabilization method |
| CN103858320A (en) * | 2011-06-10 | 2014-06-11 | 汉斯约格·塞瓦尔德 | Locking key |
| CN110380531A (en) * | 2019-06-27 | 2019-10-25 | 康富科技股份有限公司 | A kind of dedicated no-brush synchronous generator of UPS |
-
2006
- 2006-03-30 CN CN 200620004649 patent/CN2850124Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426656C (en) * | 2006-01-25 | 2008-10-15 | 包头长安永磁电机研发有限公司 | Permanent-magnet DC brushless variable speed constant-pressure wind power generator and its voltage stabilization method |
| CN103858320A (en) * | 2011-06-10 | 2014-06-11 | 汉斯约格·塞瓦尔德 | Locking key |
| CN110380531A (en) * | 2019-06-27 | 2019-10-25 | 康富科技股份有限公司 | A kind of dedicated no-brush synchronous generator of UPS |
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| C14 | Grant of patent or utility model | ||
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