CN101752916B - Composite excitation permanent magnet wind power generator with combined stator and rotor sructure - Google Patents
Composite excitation permanent magnet wind power generator with combined stator and rotor sructure Download PDFInfo
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- CN101752916B CN101752916B CN200910248895XA CN200910248895A CN101752916B CN 101752916 B CN101752916 B CN 101752916B CN 200910248895X A CN200910248895X A CN 200910248895XA CN 200910248895 A CN200910248895 A CN 200910248895A CN 101752916 B CN101752916 B CN 101752916B
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Abstract
The invention particularly relates to a permanent magnet wind power generator, which comprises a stator shell, a frame, a rotating shaft, bearings, a combined rotor and a combined stator. The permanent magnet wind power generator is characterized in that: the motor stator shell adopts a magnetic conductive material and plays a role of back yoke; the motor rotating shaft arranged on the frame is fixed in the middle part of the stator shell by the bearings on a front end cover and a rear end cover; the periphery of the rotating shaft is provided with the combined rotor and the combined stator sequentially along the radial direction; the combined rotor and the combined stator are both divided into left and right parts; the combined rotor is fixed on the motor rotating shaft by a rotor frame; the combined rotor part is provided with an I-shaped stator tooth module; a stator winding is wound on the stator tooth module; and a DC magnet exciting coil is arranged in a groove among the shell whose middle part is separated, a stator axial magnetic conductive sleeve and a stator axial magnetism isolating sleeve. The invention aims to solve the problems of difficult adjustment of the magnetic field, difficult realization of the closed slot of the motor, difficult transportation and lifting of the overweight motor and the like of the permanent magnet wind power generator.
Description
One, technical field: the present invention relates to technical field of generators, particularly a kind of permanent-magnetic wind driven generator.
Two, background technology: in wind generator system, electro-magnetic motor is used for the adjusting that generator is beneficial to load voltage with its good adjustable magnetic ability, but it has electric brush slip ring, has limited its application under adverse circumstances.And magneto alternator adopts permanent magnet excitation, has saved excitation winding and the collector ring and the brush that easily go wrong, has simple in structure; Electric efficiency is high; Series of advantages such as reliable, but the air-gap field of magneto is by permanent magnet and the decision of magnetic circuit magnetic conductance, and motor is once processing; Its magnetic field is difficult to regulate, and therefore is not suitable for being applied in the speed constant pressure wind power system.
Stipulate relevant for limit value among standard GB/T10760.1-2003 from net type permanent-magnetic wind driven generator starting reactance square value under no-load condition; And from practical situations; Permanent-magnetic wind driven generator starting reactance square is more little; Motor is easier starting-generating under gentle breeze, has improved wind energy utilization.Have document to point out to adopt the stator groove of remaining silent can effectively reduce the starting reactance square, groove bring very big difficulty can for the motor windings rule but magneto is selected to remain silent, and in real electrical machinery is produced, is difficult to adopt.
Because the rotating speed of direct-drive aerogenerator is that per minute tens forwards tens commentaries on classics to; In order to keep having identical rated power with high-speed electric expreess locomotive; It must adopt more number of poles and bigger volume; And direct-drive aerogenerator is installed on the high tower of tens meters even tens meters the overweight expense that can increase animal economy transportation, lifting again of motor usually.
Therefore, press for a kind of generator having new structure and be applied to wind power generation field for addressing the above problem.
Three, summary of the invention:
1, goal of the invention: the invention provides a kind of composite excitation permanent magnet wind power generator of combined stator and rotor sructure, problems such as purpose is to solve that permanent-magnetic wind driven generator magnetic field be difficult for to be regulated, motor is remained silent that groove is difficult for realizing, the overweight difficult transportation of motor and lifting.
2, technical scheme: the present invention implements through following technical scheme:
A kind of composite excitation permanent magnet wind power generator of combined stator and rotor sructure, it comprises support, is installed in the stator cage on the support and is arranged on the front end housing and the rear end cap at stator cage two ends; At the middle part of stator cage, rotor and stator are arranged in the stator cage, it is characterized in that through the bearing fixing on front end housing and the rear end cap in rotating shaft: stator cage is that permeability magnetic material plays the effect of back of the body yoke, places on the support; Around rotating shaft, radially set gradually composite fabricated rotor and combined-stator; Described composite fabricated rotor part mainly is made up of at a distance from magnetic pressure plate and rotor field spider permanent magnet pole, magnetic pole iron, magnetic pole; Rotor field spider wherein is fixed in the rotating shaft of motor, is used for support rotor; Motor pole hangs on the rotor field spider; Each motor pole is made up of permanent magnet pole and magnetic pole iron, and permanent magnet pole is made up of permanent magnet and rotor punching again; Motor pole and rotor field spider are divided into left and right sides two parts, and the centre is provided with rotor axial conducting magnetic component, flat key and rotor axial at a distance from the magnetic assembly; Described combined-stator part mainly is made up of stator tooth module, stator winding, direct-flow magnet exciting coil; Stator winding is on the stator tooth module; Same motor stator also is divided into left and right sides two parts; The centre is provided with stator shaft orientation magnetic conduction sleeve and stator shaft orientation magnetic shield tube, and direct-flow magnet exciting coil is placed in the groove that forms between stator cage, stator shaft orientation magnetic conduction sleeve and the stator shaft orientation magnetic shield tube.
In the composite fabricated rotor part,, between permanent magnet pole and magnetic pole iron, place magnetic pole at a distance from the magnetic pressure plate in order to reduce axial leakage field.
In the combined-stator part, the stator tooth module becomes " worker " font shape, is overrided to form by stator punching.
3, advantage and effect: compared with present technology the present invention has following advantage: adopt the composition motor structure can economize on the material amount, reduce cost, the dismounting maintenance when being convenient to transportation, lifting and the fault of motor; Hybrid excitation generator is used for the wind-powered electricity generation field, is beneficial to the realization speed constant pressure; Rotor that the present invention carries is hung the rotor loss that electrode structure can reduce motor, and when local loss of excitation takes place certain piece permanent magnet, the magnetic pole that is easy to more renew; Stator structure of the present invention can be realized the groove structure of remaining silent, and is beneficial to the reduction of the generator starting moment of resistance, and the difficulty that can not bring motor windings to roll off the production line; Rotor magnetic pole is at a distance from the employing of magnetic pressure plate, reduced axial leakage field and helped the axial compression of punching.
Four, description of drawings:
Fig. 1 is a rotor structure sketch map of the present invention;
Fig. 2 is a rotor magnetic pole distribution schematic diagram of the present invention;
Fig. 3 is the sketch map that is connected of the permanent magnet pole of rotor of the present invention and magnetic pole iron;
Fig. 4 is a primary structure sketch map of the present invention;
Fig. 5 is the end view of Fig. 4;
Fig. 6 is the primary structure sketch map of stator tooth module of the present invention.
Five, embodiment:
Mark 1 among the figure is rotating shaft, and 2 is permanent magnet, and 3 is rotor punching, and 4 is the separated magnetic pressure plate of magnetic pole iron, and 5 is magnetic pole iron; 6 is the rotor axial conducting magnetic component, and 7 is the separated magnetic assembly of rotor axial, and 8 is flat key, and 9 is rotor field spider, and 10 is permanent magnet pole; 11 is bearing, and 12 is front end housing, and 13 is stator cage, and 14 is stator punching, and 15 is stator shaft orientation magnetic conduction sleeve; 16 is direct-flow magnet exciting coil, and 17 is stator shaft orientation magnetic shield tube, and 18 is rear end cap, and 19 is support.
Below in conjunction with accompanying drawing the present invention is specified:
Fig. 1 is the rotor structure sketch map; As the composite fabricated rotor part, it comprises permanent magnet pole 10, magnetic pole iron 5, magnetic pole iron at a distance from magnetic pressure plate 4, rotor field spider 9, and rotor field spider 9 is fixed on the machine shaft 1, is used for support rotor, and motor pole hangs on the rotor field spider 9.Motor pole and rotor field spider 9 are divided into left and right sides two parts, and the centre links to each other with flat key 8 at a distance from magnetic assembly 7 through rotor axial conducting magnetic component 6, rotor axial.Each motor pole is made up of permanent magnet pole 10 and magnetic pole iron 5, and permanent magnet pole 10 is made up of permanent magnet 2 and rotor punching 3 again.In order to reduce axial leakage field, between permanent magnet pole 10 and magnetic pole iron 5, place magnetic pole at a distance from magnetic pressure plate 4.
Fig. 2 is a rotor magnetic pole distribution schematic diagram of the present invention; Also shown the magnetic pole distribution schematic diagram that left and right sides two parts composite fabricated rotor forms among the figure, at a distance from magnetic assembly 7 two parts have been separated by rotor axial.
Fig. 3 is the permanent magnet pole 10 of rotor of the present invention and the sketch map that is connected of magnetic pole iron 5; They are all pegged graft through groove and are fixed on the rotor field spider 9.
Fig. 4 is a general assembly drawing of the present invention; Show among the figure, comprise stator cage 13, support 19, rotating shaft 1, bearing 11, composite fabricated rotor, combined-stator.Stator cage 13 is a permeability magnetic material, plays the effect of back of the body yoke, places on the support 19.Machine shaft 1 is fixed on the middle part of stator cage 13 through front end housing 12 and the bearing 11 on the rear end cap 18, around rotating shaft 1, radially sets gradually composite fabricated rotor, combined-stator.Combined-stator partly comprises stator tooth module, stator winding, direct-flow magnet exciting coil 16, and the stator tooth module becomes " worker " font to be overrided to form by stator punching 14, sees shown in Figure 6ly, and the design of " worker " font is convenient to install and fix stator winding; Stator winding is on " worker " type stator tooth module.Same motor stator also is divided into left and right sides two parts; The middle stator shaft orientation magnetic conduction sleeve 15 that passes through links to each other with stator shaft orientation magnetic shield tube 17, and direct-flow magnet exciting coil 16 is placed in the groove that forms between stator cage 13, stator shaft orientation magnetic conduction sleeve 15 and the stator shaft orientation magnetic shield tube 17.Fig. 5 is the end view of Fig. 4; Shown among the figure that stator cage 13 is fixed on the support 19, the suspension ring on the stator cage 13 are used for hoisting and hanging.
See shown in Figure 6ly, the stator tooth module becomes " worker " font to be overrided to form by stator punching 14, and the upper end has convexity, is complementary with the groove of stator cage 13, and the stator tooth module is fixed on the stator cage 13.
This structural design of the present invention can be economized on the material amount, reduce cost, the dismounting maintenance when being convenient to transportation, lifting and the fault of motor; Be easy to realize speed constant pressure simultaneously, also can reduce the rotor loss of motor.The connected mode of permanent magnet pole 10 and magnetic pole iron 5 is the modes of pegging graft and fixing with groove, and this structure is when local loss of excitation takes place certain piece permanent magnet, the magnetic pole that is easy to more renew.The structure that the stator tooth module becomes " worker " font to be overrided to form by stator punching 14 can realize the groove structure of remaining silent, and is beneficial to the reduction of the generator starting moment of resistance, and the difficulty that can not bring motor windings to roll off the production line.Rotor magnetic pole is at a distance from the employing of magnetic pressure plate 4, reduced axial leakage field and helped the axial compression of punching.
Claims (2)
1. the composite excitation permanent magnet wind power generator of a combined stator and rotor sructure, it comprises support (19), is installed in the stator cage (13) on the support (19) and is arranged on the front end housing (12) and the rear end cap (18) at stator cage (13) two ends; Rotating shaft (1) is fixed on the middle part of stator cage (13) through front end housing (12) and the bearing (11) on the rear end cap (18); Rotor and stator are arranged in the stator cage (13); It is characterized in that: stator cage (13) places on the support (19) for permeability magnetic material plays the effect of back of the body yoke; Around rotating shaft (1), radially set gradually composite fabricated rotor and combined-stator; Described composite fabricated rotor part mainly is made up of at a distance from magnetic pressure plate (4) and rotor field spider (9) permanent magnet pole (10), magnetic pole iron (5), magnetic pole; Rotor field spider wherein (9) is fixed in the rotating shaft (1) of motor, is used for support rotor; Motor pole hangs on the rotor field spider (9); Each motor pole is made up of permanent magnet pole (10) and magnetic pole iron (5), and permanent magnet pole (10) is made up of permanent magnet (2) and rotor punching (3) again; Motor pole and rotor field spider are divided into left and right sides two parts, and the centre is provided with rotor axial conducting magnetic component (6), flat key (8) and rotor axial at a distance from magnetic assembly (7); Described combined-stator part mainly is made up of stator tooth module, stator winding, direct-flow magnet exciting coil (16); Stator winding is on the stator tooth module; Same motor stator also is divided into left and right sides two parts; The centre is provided with stator shaft orientation magnetic conduction sleeve (15) and stator shaft orientation magnetic shield tube (17), and direct-flow magnet exciting coil (16) is placed in the groove that forms between stator cage (13), stator shaft orientation magnetic conduction sleeve (15) and the stator shaft orientation magnetic shield tube (17); In the combined-stator part, the stator tooth module becomes " worker " font shape, is overrided to form by stator punching (14).
2. the composite excitation permanent magnet wind power generator of a kind of combined stator and rotor sructure according to claim 1; It is characterized in that: in the composite fabricated rotor part; In order to reduce axial leakage field, between permanent magnet pole (10) and magnetic pole iron (5), place magnetic pole at a distance from magnetic pressure plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910248895XA CN101752916B (en) | 2009-12-30 | 2009-12-30 | Composite excitation permanent magnet wind power generator with combined stator and rotor sructure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910248895XA CN101752916B (en) | 2009-12-30 | 2009-12-30 | Composite excitation permanent magnet wind power generator with combined stator and rotor sructure |
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| Publication Number | Publication Date |
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| CN101752916A CN101752916A (en) | 2010-06-23 |
| CN101752916B true CN101752916B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910248895XA Expired - Fee Related CN101752916B (en) | 2009-12-30 | 2009-12-30 | Composite excitation permanent magnet wind power generator with combined stator and rotor sructure |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980433B (en) * | 2010-11-22 | 2013-01-09 | 沈阳工业大学 | Wedge-shaped stator core outer permanent-magnetic synchronous motor of circumferential phase shift and axial segmentation |
| CN102570752A (en) * | 2012-02-01 | 2012-07-11 | 襄阳宇清传动科技有限公司 | hybrid excitation synchronous motor of electric vehicle |
| CN103762759B (en) * | 2014-01-28 | 2016-01-20 | 哈尔滨工业大学 | There is the radial flux modularization polyphase machine of high Magnetic isolation ability |
| CN105024465B (en) * | 2015-08-21 | 2018-07-31 | 南京高传机电自动控制设备有限公司 | Stator double winding electrical excitation wind-driven generator |
| CN108539942A (en) * | 2018-05-31 | 2018-09-14 | 珠海格力电器股份有限公司 | Stator structure and motor with it |
| CN108923563B (en) * | 2018-07-13 | 2019-09-13 | 珠海格力电器股份有限公司 | Stator module and mixed excitation electric machine |
| CN111987828A (en) * | 2020-08-21 | 2020-11-24 | 山东齐鲁电机制造有限公司 | Permanent magnet auxiliary exciter for turbonator |
| CN112865410B (en) * | 2021-01-12 | 2021-11-23 | 大庆油田有限责任公司 | Permanent magnet semi-direct-drive synchronous dragging device for pumping unit |
| CN112865409B (en) * | 2021-01-12 | 2021-11-30 | 大庆油田有限责任公司 | Permanent-magnet semi-direct-drive synchronous dragging device of direct-drive pumping unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870385A (en) * | 2006-06-26 | 2006-11-29 | 沈阳工业大学 | Mixing excitation permanent magnetic synchro generator |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870385A (en) * | 2006-06-26 | 2006-11-29 | 沈阳工业大学 | Mixing excitation permanent magnetic synchro generator |
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