CN101818723A - Direct-driven front and back wind wheel contra-rotating wind driven generator - Google Patents
Direct-driven front and back wind wheel contra-rotating wind driven generator Download PDFInfo
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- CN101818723A CN101818723A CN201010142218A CN201010142218A CN101818723A CN 101818723 A CN101818723 A CN 101818723A CN 201010142218 A CN201010142218 A CN 201010142218A CN 201010142218 A CN201010142218 A CN 201010142218A CN 101818723 A CN101818723 A CN 101818723A
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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 direct-driven front and back wind wheel contra-rotating wind driven generator and aims to solve the technical problem that the traditional contra-rotating wind driven generator has low energy utilization efficiency. The generator consists of two wind wheels, namely a front wind wheel and a back wind wheel, which are opposite in rotation direction, wherein the two wind wheels drive inner and outer rotors of the contra-rotating generator; and three airfoils with high lift drag ratio are arranged on the first and second wind wheels respectively. Wind power utilization factors are met and improved through reasonable power and flow match. The energy utilization efficiency of the generator is improved to 58 percent from 40 percent of the prior art.
Description
Technical field
The present invention relates to a kind of wind-driven generator, particularly a kind of directly driving type front and back wind wheel is to the whirlwind power generator.
Background technique
With reference to Fig. 4.Document " patent No. is the Chinese utility model patent of ZL200720092269.2 " discloses a kind of to changeing wind-driven generator.This wind-driven generator is made of main shaft 21, internal rotor 5, external rotor 7, first wind wheel 18, second wind wheel 19 and shell 22.Its main shaft 21 devices middle part in internal rotor 5, internal rotor 5 are by two clutch shaft bearings, 2 devices middle part in external rotor 7, and first wind wheel, 18 devices are in main shaft 21 upper ends; In shell 22 inside, second wind wheel, 19 devices are in external rotor 7 upper ends by two second bearings, 9 devices for external rotor 7.This wind-driven generator adopts changeing wind wheel, can improve the energy conversion efficiency of single wind energy conversion system.But from open material, this wind-driven generator is a vertical axis wind-mill generator, belongs to shaft resistance type windmill, the wind wheel of two mutual counterrotating is installed on the same end of axle in addition, axial distance is less, produces the phase mutual interference, causes wind energy utilization relatively low.Its Wind Power Utilization efficient maximum also only is 40%.
Summary of the invention
Existing in order to overcome to changeing the low deficiency of wind-driven generator energy utilization efficiency, the invention provides a kind of directly driving type front and back wind wheel to the whirlwind power generator.This generator is made up of two wind wheels of front and back switched in opposite, drives transmitting the inner and outer rotors of motor, can further improve the Wind Power Utilization efficient of single wind energy conversion system.
The technical solution adopted for the present invention to solve the technical problems: a kind of directly driving type front and back wind wheel is to the whirlwind power generator, comprise first wind wheel 18, second wind wheel 19, internal rotor 5, external rotor 7, clutch shaft bearing 2, second bearing 9 and rare-earth permanent magnet 6, be characterized in: input shaft 1, back input shaft 10 before also comprising, preceding input shaft 1 is supported by the clutch shaft bearing 2 of case lid 4 ends before being fixed on, and second insulating bushing 23 is arranged between clutch shaft bearing 2 and the preceding case lid 4; Before an end of input shaft 1 first wind wheel 18 that is connected, the other end is connected on the internal rotor 5; Preceding input shaft 1 begins to its end by first insulating bushing, 3 parcels from the centre of high pressure collector ring 14 with low pressure collector ring 15; Coil winding is wound on the silicon steel sheet 17 of 28 concaveconvex structures, forms 28 coil winding; The two ends of coil winding are connected to electric bridge 11 input ends, after bridge commutating, form direct current, first insulating bushing, 3 inboards on the input shaft 1 before high voltage terminal imports by high pressure clamping bolt 13, first insulating bushing, 3 outsides on the input shaft 1 before low voltage terminal is connected in by low pressure clamping bolt 12; Back input shaft 10 is supported by second bearing 9 that is fixed in back box lid 8 rear ends; Back input shaft 10 1 ends second wind wheel 19 that is connected, the other end and external rotor 7 are connected, and external rotor 7 inboards are evenly distributed with 32 rare-earth permanent magnets 6; Preceding case lid 4 is connected to form an integral body with back box lid 8 by bolt 16, leaves and windmill tower frame 20 flange connecting.
On described first wind wheel 18 and second wind wheel 19 three high lift-drag ratio aerofoil profiles are arranged respectively.
The diameter ratio of described first wind wheel 18 and second wind wheel 19 is 1: 1.25.
The invention has the beneficial effects as follows: since two wind wheels of front and back switched in opposite form to the whirlwind power generator, drive the inner and outer rotors of generator, make the Wind Power Utilization efficient of generator bring up to 58% by 40% of prior art.
Below in conjunction with drawings and Examples the present invention is elaborated.
Description of drawings
Fig. 1 is the structural representation of directly driving type front and back wind wheel of the present invention to the whirlwind power generator.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the overall structure figure of directly driving type front and back wind wheel of the present invention to the whirlwind power generator.
Fig. 4 is the structural representation of background technique wind-driven generator.
Among the figure, input shaft before the 1-, 2-clutch shaft bearing, 3-first insulating bushing, case lid before the 4-, 5-internal rotor, 6-rare-earth permanent magnet, 7-external rotor, the 8-back box lid, 9-second bearing, input shaft behind the 10-, 11-electric bridge, 12-low voltage terminal clamping bolt, 13-high voltage terminal clamping bolt, 14-high voltage terminal collector ring, 15-low voltage terminal collector ring, the 16-bolt, 17-silicon steel sheet, 18-first wind wheel, 19-second wind wheel, the 20-pylon, 21-main shaft, 22-shell, 23-second insulating bushing.
Embodiment
With reference to Fig. 1～3.The directly driving type front and back wind wheel comprises first wind wheel 18, second wind wheel 19, preceding input shaft 1, back input shaft 10, internal rotor 5, external rotor 7, clutch shaft bearing 2, second bearing 9 and rare-earth permanent magnet 6 to the whirlwind power generator, before an end of input shaft 1 first wind wheel 18 that is connected, the other end connecting coil winding forms on the internal rotor 5, and input shaft 1 turned clockwise before first wind wheel 18 absorbed incoming flow wind power drive generator; Preceding input shaft 1 is supported by the clutch shaft bearing 2 of case lid 4 ends before being fixed on; Preceding input shaft 1 begins to its end by first insulating bushing, 3 parcels from the centre of high pressure collector ring 14 with low pressure collector ring 15; Coil winding is wound on the silicon steel sheet 17 of 28 concaveconvex structures, forms 28 coil winding; The two ends of coil winding are connected to electric bridge 11 input ends, after bridge commutating, form direct current, first insulating bushing, 3 inboards on the input shaft 1 before high voltage terminal imports by high pressure clamping bolt 13, first insulating bushing, 3 outsides on the input shaft 1 before low voltage terminal is connected in by low pressure clamping bolt 12; The high voltage terminal electric current is derived the electric energy of rotary component by high pressure collector ring 14, and low voltage terminal is connected to form path by low voltage terminal collector ring 15; Second insulating bushing 23 is installed between clutch shaft bearing 2 and the preceding case lid 4; Back input shaft 10 1 ends second wind wheel 19 that is connected, the other end and external rotor 7 are connected.Back input shaft is supported by second bearing 9 that is fixed in back box lid 8 rear ends; On first wind wheel 18 and second wind wheel 19 three high lift-drag ratio aerofoil profiles are arranged respectively, and through rational power and the satisfied wind power efficiency that improves of the coupling that flows.The diameter that wherein descends wind wheel 19 is 1.25 times of first wind wheel, 18 diameters, absorbs first wind wheel, 18 residue wind power.External rotor 7 inboards are evenly distributed with 32 rare-earth permanent magnets 6, are rotated counterclockwise in company with external rotor; Forward and backward case lid is connected to form an integral body by bolt 16, connects windmill tower frame 20 by mounting flange.
The directly driving type front and back wind wheel is tested in small-sized low speed wind tunnel the whirlwind power generator, and voltage by measuring motor output and electric current and generator efficiency have obtained the power that wind energy conversion system produced.This wind energy conversion system startup wind speed is 1.0m/s after tested, can realize breeze wind, and power coefficient is 0.2; The interval power coefficient of 1～10m/s wind speed improves fast; Power coefficient 0.58 when design wind speed 10m/s; And, keep power coefficient about 0.58 in 10～15m/s wind speed section; 15～20m/s wind speed district power coefficient remains on about 0.5.
Claims (3)
1. a directly driving type front and back wind wheel is to the whirlwind power generator, comprise first wind wheel (18), second wind wheel (19), internal rotor (5), external rotor (7), clutch shaft bearing (2), second bearing (9) and rare-earth permanent magnet (6), it is characterized in that: also comprise preceding input shaft (1), back input shaft (10), preceding input shaft (1) is supported by the clutch shaft bearing (2) that is fixed on preceding case lid (4) end, between clutch shaft bearing (2) and the preceding case lid (4) second insulating bushing (23) is arranged; Before an end of input shaft (1) first wind wheel (18) that is connected, the other end is connected on the internal rotor (5); Preceding input shaft (1) begins to be wrapped up by first insulating bushing (3) to its end from the centre of high pressure collector ring (14) with low pressure collector ring (15); Coil winding is wound on the silicon steel sheet (17) of 28 concaveconvex structures, forms 28 coil winding; The two ends of coil winding are connected to electric bridge (11) input end, after bridge commutating, form direct current, last first insulating bushing of input shaft (1) (3) inboard before high voltage terminal imports by high pressure clamping bolt (13), low voltage terminal is connected in last first insulating bushing of preceding input shaft (1) (3) outside by low pressure clamping bolt (12); Back input shaft (10) is supported by second bearing (9) that is fixed in back box lid (8) rear end; Back input shaft (10) one ends second wind wheel (19) that is connected, the other end and external rotor (7) are connected, and external rotor (7) inboard is evenly distributed with 32 rare-earth permanent magnets (6); Preceding case lid (4) is connected to form an integral body with back box lid (8) by bolt (16), leaves and windmill tower frame (20) flange connecting.
2. directly driving type front and back wind wheel according to claim 1 is characterized in that the whirlwind power generator: on described first wind wheel (18) and second wind wheel (19) three high lift-drag ratio aerofoil profiles are arranged respectively.
3. directly driving type front and back wind wheel according to claim 1 and 2 is characterized in that the whirlwind power generator: described first wind wheel (18) is 1: 1.25 with the diameter ratio of second wind wheel (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101422182A CN101818723B (en) | 2010-04-08 | 2010-04-08 | Direct-driven front and back wind wheel contra-rotating wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101422182A CN101818723B (en) | 2010-04-08 | 2010-04-08 | Direct-driven front and back wind wheel contra-rotating wind driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818723A true CN101818723A (en) | 2010-09-01 |
| CN101818723B CN101818723B (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101422182A Expired - Fee Related CN101818723B (en) | 2010-04-08 | 2010-04-08 | Direct-driven front and back wind wheel contra-rotating wind driven generator |
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| CN (1) | CN101818723B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629793A (en) * | 2012-04-13 | 2012-08-08 | 国电联合动力技术(连云港)有限公司 | Motor applicable to megawatt type direct-driven wind turbine |
| CN103434628A (en) * | 2013-08-25 | 2013-12-11 | 西北工业大学 | Novel propelling system based on magnus effect |
| CN103812300A (en) * | 2013-02-04 | 2014-05-21 | 摩尔动力(北京)技术股份有限公司 | Electromagnetic contra-rotating engine |
| CN105201750A (en) * | 2015-10-16 | 2015-12-30 | 岑益南 | Double-wind-wheel direct-drive windmill generator |
| CN105811644A (en) * | 2016-03-10 | 2016-07-27 | 南京高传机电自动控制设备有限公司 | Insulating transmission shaft for connecting with motor and gear case |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2153523A (en) * | 1937-03-25 | 1939-04-04 | W N Price | Wind operated electric generator |
| CN1032719A (en) * | 1987-10-21 | 1989-05-03 | 孙国华 | Annular electric and variable torque motor thereof |
| GB2218861A (en) * | 1988-05-17 | 1989-11-22 | Gen Motors France | Slip rings |
| US6476513B1 (en) * | 2000-09-28 | 2002-11-05 | Lubomir B. Gueorguiev | Electrical generator system |
| CN2797673Y (en) * | 2004-04-21 | 2006-07-19 | 贾雄雄 | Wind power generator with two wind wheel machine |
| CN201696222U (en) * | 2010-04-08 | 2011-01-05 | 西北工业大学 | Disrotatory wind powered generator with front wind wheel and back wind wheel |
-
2010
- 2010-04-08 CN CN2010101422182A patent/CN101818723B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2153523A (en) * | 1937-03-25 | 1939-04-04 | W N Price | Wind operated electric generator |
| CN1032719A (en) * | 1987-10-21 | 1989-05-03 | 孙国华 | Annular electric and variable torque motor thereof |
| GB2218861A (en) * | 1988-05-17 | 1989-11-22 | Gen Motors France | Slip rings |
| US6476513B1 (en) * | 2000-09-28 | 2002-11-05 | Lubomir B. Gueorguiev | Electrical generator system |
| CN2797673Y (en) * | 2004-04-21 | 2006-07-19 | 贾雄雄 | Wind power generator with two wind wheel machine |
| CN201696222U (en) * | 2010-04-08 | 2011-01-05 | 西北工业大学 | Disrotatory wind powered generator with front wind wheel and back wind wheel |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629793A (en) * | 2012-04-13 | 2012-08-08 | 国电联合动力技术(连云港)有限公司 | Motor applicable to megawatt type direct-driven wind turbine |
| CN103812300A (en) * | 2013-02-04 | 2014-05-21 | 摩尔动力(北京)技术股份有限公司 | Electromagnetic contra-rotating engine |
| CN103434628A (en) * | 2013-08-25 | 2013-12-11 | 西北工业大学 | Novel propelling system based on magnus effect |
| CN103434628B (en) * | 2013-08-25 | 2015-11-18 | 西北工业大学 | A kind of propulsion system based on Magnus Effect |
| CN105201750A (en) * | 2015-10-16 | 2015-12-30 | 岑益南 | Double-wind-wheel direct-drive windmill generator |
| CN105811644A (en) * | 2016-03-10 | 2016-07-27 | 南京高传机电自动控制设备有限公司 | Insulating transmission shaft for connecting with motor and gear case |
| CN105811644B (en) * | 2016-03-10 | 2019-01-29 | 南京高传机电自动控制设备有限公司 | A kind of insulated transmission axis that motor is connect with gear-box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101818723B (en) | 2012-03-21 |
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Granted publication date: 20120321 Termination date: 20150408 |
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