CN101463802A - Lightning protection system for wind generator set - Google Patents
Lightning protection system for wind generator set Download PDFInfo
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- CN101463802A CN101463802A CNA200710032723XA CN200710032723A CN101463802A CN 101463802 A CN101463802 A CN 101463802A CN A200710032723X A CNA200710032723X A CN A200710032723XA CN 200710032723 A CN200710032723 A CN 200710032723A CN 101463802 A CN101463802 A CN 101463802A
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- lightning
- electric discharge
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- power generating
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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 lightning protection system of a wind-driven generator set, relating to a tower support, wherein, a generator cabin is arranged on the upper end of the tower support, a stander is arranged in the cabin, an electric generator is arranged on the stander and is connected with a gear box by a high-speed coupler, and the gear box is connected with a wheel hub with blades by a main shaft. The lightning protection system is characterized in that thunderbolt receptors and conductor devices are respectively arranged in the blades and on the cabin, and electric discharge devices are arranged on the wheel hub, the main shaft, the gear box, the stander and the tower support; and the thunderbolt receptors and the conductor devices are electrically connected with the electric discharge devices which are electrically connected with a grounding device arranged underground. The invention aims at avoiding the damages caused by the momentary extreme current and the voltage of lightning strike to the wind-driven generator set, in particular to a 1.5 MW speed change constant frequency double-fed asynchronous wind-driven generator set, and providing the lightning protection system effectively preventing the lightning strike from damaging the wind-driven generator.
Description
Technical field
The present invention relates to a kind of lightning protection protective system that is applicable to wind power generating set.
Background technique
Wind-power electricity generation is as a kind of energy industry of environmental protection, in modern energy-intensive society, more and more come into one's own, investment to wind-driven generator is also increasing, and well-known, wind power generating set generally is installed in the field spacious ground district, because it is generally high building, so as easy as rolling off a log the thunderbolt, particularly in high lightning region, thunder and lightning is more serious to the harm of wind power generating set.And the existing lightning-protection system that is used for wind-driven generator is difficult to eliminate the influence of its powerful electric current of thunder and lightning to each parts of wind power generating set; tend to cause great loss; particularly for 1.5MW variable speed constant frequency dual-feed asynchronous wind power generator group; because it is provided with many have accurate machinery and electrical equipments; that loss is huge if be struck by lightning, and every profession and trade does not have reasonable manner for the lightning protection of the double-fed asynchronous generator of 1.5MW at present.So existing lightning protection system for wind generator set awaits further improvement.
Summary of the invention
The objective of the invention is for overcome its moment of thunderbolt huge electric current and voltage to wind power generating set; the particularly harm that brings of 1.5MW variable speed constant frequency dual-feed asynchronous wind power generator group provides a kind of lightning protection protective system of the infringement that wind-driven generator is brought of effectively avoiding being struck by lightning.
To achieve the above object, the present invention adopts following scheme:
A kind of wind power generating set lightning-protection system, include a pylon, be provided with the generator cabin in the upper end of pylon, be provided with frame in described cabin, on frame, be provided with generator, described generator is connected with gear-box by the high speed shaft joint, described gear-box is connected with the wheel hub that is provided with blade by main shaft, it is characterized in that: on described blade interior and cabin, be provided with thunder and lightning acceptor and conductor means, at described wheel hub, main shaft, gear-box, frame and pylon are provided with electric discharge device, described thunder and lightning acceptor and conductor means are electrically connected with electric discharge device, described electric discharge device be arranged on underground earthed system and be electrically connected.
Aforesaid wind power generating set lightning-protection system is characterized in that described blade, wheel hub, main shaft, frame and pylon are electrically connected successively.
Aforesaid wind power generating set lightning-protection system is characterized in that thunder and lightning acceptor and the conductor means on the cabin is located on the meteorological mast, and is electrically connected with electric discharge device in frame and the pylon.
Aforesaid wind power generating set lightning-protection system is characterized in that described blade, wheel hub, main shaft, gear-box, frame and pylon are electrically connected successively.
Aforesaid wind power generating set lightning-protection system is characterized in that being provided with mask net on its outer cover of cabin, and described mask net top is provided with a dismountable mask net piece, and described mask net is connected with earthed system by electric discharge device.
Aforesaid wind power generating set lightning-protection system is characterized in that described electric discharge device is the copper braid.
Aforesaid wind power generating set lightning-protection system is characterized in that described electric discharge device is the ground connection copper brush.
Aforesaid wind power generating set lightning-protection system is characterized in that described electric discharge device is an earth cable.
Beneficial effect of the present invention: be provided with thunder and lightning acceptor and electric installation in its blade interior of wind power generating set and nacelle top, on its outer cover of cabin, be provided with mask net, and each parts that is arranged in the cabin all are connected with earthed system by electric discharge device, effectively the powerful conduction of current that thunderbolt is produced arrives the earth, eliminate the influence of thunder and lightning, guaranteed the safety of generator system each parts of wind power generating set.
Description of drawings
Fig. 1 is a schematic representation of the present invention;
Fig. 2 is the schematic representation of mask net among the present invention.
Embodiment
Below in conjunction with description of drawings and embodiment the present invention is further described:
A kind of wind power generating set lightning-protection system as shown in Figure 1, include a pylon 1, be provided with generator cabin 2 in the upper end of pylon 1, be provided with frame 3 in described cabin 2, on frame 3, be provided with generator 4, described generator 4 is connected with gear-box 6 by high speed shaft joint 5, described gear-box 6 is connected with the wheel hub 9 that is provided with blade 8 by main shaft 7, it is characterized in that: on described blade 8 inside and cabin 2, be provided with thunder and lightning acceptor and conductor means, at described wheel hub 9, main shaft 7, gear-box 6, frame 3 and pylon 1 are provided with electric discharge device 10, described thunder and lightning acceptor and conductor means are electrically connected with electric discharge device 10, described electric discharge device 10 be arranged on underground earthed system 11 and be electrically connected.
Wherein thunder and lightning acceptor on the cabin 2 and conductor means are located on the meteorological mast 12, and thunder and lightning acceptor in the meteorological mast 12 and conductor means are electrically connected with electric discharge device 10 in frame 3 and the pylon 1.The lightning current conducting path that directly hits meteorological mast is: meteorological mast 12-frame 3-tower tube 1-earthed system 11.
Wherein the present invention is provided with mask net 13 on 2 its outer covers of cabin, and described mask net 13 tops are provided with a dismountable mask net piece 14, and described mask net 13 is connected with earthed system 11 by electric discharge device 10.Electric discharge device 6 described in the present invention is one or more in copper braid, ground connection copper brush, the earth cable.
In Fig. 1, between its fan blade 8 of 1.5MW dual-feed asynchronous wind power generator group and wheel hub 9, be connected with the copper braid.Ground connection copper brush and copper braid are installed between the spindle lock plate edge of main shaft 8 front ends and frame 3.Driftage Bearing Installation ground connection copper brush and copper braid between driftage brake disc and the tower tube 1.Use 240mm between generator 4 its stator groundings, frame 3, tower tube 1 its foundation ring and the ground networks
2Cable connects.Between meteorological mast 12, generator 4 its rotor ground faults, gear-box 6 and frame 3, use 75mm
2Yellowish green earth cable connects.Use 75mm between each layer tower tube 1 flange junction surface
2Yellowish green earth cable connects.
The lightning current that directly hits blade 8 or meteorological mast 12 can be imported earthed system safely by above-mentioned Placement among the present invention.Can avoid blade bearing, main shaft bearing and driftage bearing by this conducting path lightning current, avoid it is caused damage.
Claims (8)
1, a kind of wind power generating set lightning-protection system, include a pylon (1), be provided with generator cabin (2) in the upper end of pylon (1), be provided with frame (3) in described cabin (2), on frame (3), be provided with generator (4), described generator (4) is connected with gear-box (6) by high speed shaft joint (5), described gear-box (6) is connected with the wheel hub that is provided with blade (8) (9) by main shaft (7), it is characterized in that: on described blade (8) inside and cabin (2), be provided with thunder and lightning acceptor and conductor means, in described wheel hub (9), main shaft (7), gear-box (6), frame (3) and pylon (1) are provided with electric discharge device (10), described thunder and lightning acceptor and conductor means are electrically connected with electric discharge device (10), described electric discharge device (10) be arranged on underground earthed system (11) and be electrically connected.
2, wind power generating set lightning-protection system according to claim 1 is characterized in that described blade (8), wheel hub (9), main shaft (7), frame (3) and pylon (1) are electrically connected successively.
3, wind power generating set lightning-protection system according to claim 1 is characterized in that thunder and lightning acceptor and the conductor means on the cabin (2) is located on the meteorological mast (12), and is electrically connected with electric discharge device (10) in frame (3) and the pylon (1).
4, wind power generating set lightning-protection system according to claim 1 is characterized in that described blade (8), wheel hub (9), main shaft (7), gear-box (6), frame (3) and pylon (1) are electrically connected successively.
5, wind power generating set lightning-protection system according to claim 1, it is characterized in that on its outer cover of cabin (2), being provided with mask net (13), described mask net (13) top is provided with a dismountable mask net piece (14), and described mask net (13) is connected with earthed system (11) by electric discharge device (10).
6,, it is characterized in that described electric discharge device (6) is the copper braid according to claim 1 or 3 or 5 described wind power generating set lightning-protection systems.
7,, it is characterized in that described electric discharge device (6) is the ground connection copper brush according to claim 1 or 3 or 5 described wind power generating set lightning-protection systems.
8,, it is characterized in that described electric discharge device (6) is an earth cable according to claim 1 or 3 or 5 described wind power generating set lightning-protection systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710032723XA CN101463802B (en) | 2007-12-21 | 2007-12-21 | Lightning protection system for wind generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710032723XA CN101463802B (en) | 2007-12-21 | 2007-12-21 | Lightning protection system for wind generator set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101463802A true CN101463802A (en) | 2009-06-24 |
| CN101463802B CN101463802B (en) | 2011-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710032723XA Active CN101463802B (en) | 2007-12-21 | 2007-12-21 | Lightning protection system for wind generator set |
Country Status (1)
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| CN (1) | CN101463802B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793240A (en) * | 2010-04-09 | 2010-08-04 | 太原重工股份有限公司 | Lightning arrester of wind turbine generator |
| WO2011038684A1 (en) * | 2009-09-30 | 2011-04-07 | Asian Prime Sources Limited | Wind energy converter |
| CN102278286A (en) * | 2010-06-10 | 2011-12-14 | 西门子公司 | Lightning protection system for a wind turbine |
| CN102374136A (en) * | 2011-09-09 | 2012-03-14 | 广东明阳风电产业集团有限公司 | Impeller lightning protection device for wind generating set |
| CN102652221A (en) * | 2009-12-09 | 2012-08-29 | 西门子公司 | Lightning protection system for a wind turbine and wind turbine with a lightning protection system |
| CN102971530A (en) * | 2010-06-29 | 2013-03-13 | 苏司兰能源有限公司 | Nacelle cover for wind turbine nacelle |
| CN103547796A (en) * | 2011-05-10 | 2014-01-29 | 三菱重工业株式会社 | Windmill |
| CN105370508A (en) * | 2014-04-18 | 2016-03-02 | A·B·卡迦 | Electromagnetic shielding of a strain gauge in a wind power installation |
| CN106640540A (en) * | 2016-10-08 | 2017-05-10 | 霍尔果斯新国金新能源科技有限公司 | Concrete tower used for wind driven generator |
| CN106762467A (en) * | 2016-12-13 | 2017-05-31 | 云南能投海装新能源设备有限公司 | A kind of lightning protection system for wind power generation plant |
| EP3712431A1 (en) * | 2019-03-22 | 2020-09-23 | Siemens Gamesa Renewable Energy A/S | Nacelle cover for improving lightning protection |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10022128C1 (en) * | 2000-05-06 | 2001-12-20 | Aloys Wobben | Wind turbine |
| CN2511804Y (en) * | 2001-12-19 | 2002-09-18 | 黄继珂 | Wind power generator |
| CN2653164Y (en) * | 2003-09-09 | 2004-11-03 | 陈进义 | Turbine wind force generator |
| CN201125843Y (en) * | 2007-12-21 | 2008-10-01 | 广东明阳风电技术有限公司 | Lightning protection protective system of wind generating set |
-
2007
- 2007-12-21 CN CN200710032723XA patent/CN101463802B/en active Active
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011038684A1 (en) * | 2009-09-30 | 2011-04-07 | Asian Prime Sources Limited | Wind energy converter |
| US9157419B2 (en) | 2009-12-09 | 2015-10-13 | Siemens Aktiengesellschaft | Lightning protection system for a wind turbine and wind turbine with a lightning protection system |
| CN102652221A (en) * | 2009-12-09 | 2012-08-29 | 西门子公司 | Lightning protection system for a wind turbine and wind turbine with a lightning protection system |
| CN101793240B (en) * | 2010-04-09 | 2012-05-02 | 太原重工股份有限公司 | Lightning arrester of wind turbine generator |
| CN101793240A (en) * | 2010-04-09 | 2010-08-04 | 太原重工股份有限公司 | Lightning arrester of wind turbine generator |
| CN102278286A (en) * | 2010-06-10 | 2011-12-14 | 西门子公司 | Lightning protection system for a wind turbine |
| US9334852B2 (en) | 2010-06-10 | 2016-05-10 | Siemens Aktiengesellschaft | Lightning protection system for a wind turbine |
| US9644614B2 (en) * | 2010-06-10 | 2017-05-09 | Siemens Aktiengesellschaft | Lightning protection system for a wind turbine |
| CN102278286B (en) * | 2010-06-10 | 2016-04-06 | 西门子公司 | For lightning-protection system and the wind turbine of wind turbine |
| CN102971530A (en) * | 2010-06-29 | 2013-03-13 | 苏司兰能源有限公司 | Nacelle cover for wind turbine nacelle |
| US9422924B2 (en) | 2010-06-29 | 2016-08-23 | Suzlon Energy Gmbh | Nacelle cover |
| CN103547796A (en) * | 2011-05-10 | 2014-01-29 | 三菱重工业株式会社 | Windmill |
| CN102374136B (en) * | 2011-09-09 | 2013-05-22 | 广东明阳风电产业集团有限公司 | Impeller lightning protection device for wind generating set |
| CN102374136A (en) * | 2011-09-09 | 2012-03-14 | 广东明阳风电产业集团有限公司 | Impeller lightning protection device for wind generating set |
| CN105370508A (en) * | 2014-04-18 | 2016-03-02 | A·B·卡迦 | Electromagnetic shielding of a strain gauge in a wind power installation |
| CN106640540A (en) * | 2016-10-08 | 2017-05-10 | 霍尔果斯新国金新能源科技有限公司 | Concrete tower used for wind driven generator |
| CN106762467A (en) * | 2016-12-13 | 2017-05-31 | 云南能投海装新能源设备有限公司 | A kind of lightning protection system for wind power generation plant |
| CN106762467B (en) * | 2016-12-13 | 2019-11-15 | 云南能投海装新能源设备有限公司 | A kind of lightning protection system for wind power generation plant |
| EP3712431A1 (en) * | 2019-03-22 | 2020-09-23 | Siemens Gamesa Renewable Energy A/S | Nacelle cover for improving lightning protection |
| US11441546B2 (en) | 2019-03-22 | 2022-09-13 | Siemens Gamesa Renewable Energy A/S | Nacelle cover for improving lightning protection |
Also Published As
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|---|---|
| CN101463802B (en) | 2011-05-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG MINGYANG WIND POWER GROUP CO., LTD. Free format text: FORMER NAME: GUANGDONG MINGYANG WIND + ELECTRICITY TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 528400 five star village, Torch Development Zone, Guangdong, Zhongshan Patentee after: Guangdong Mingyang Wind Power Group Co., Ltd. Address before: 528400 Zhongshan Torch Development Zone, Guangdong Patentee before: Guangdong Mingyang Wind Electrical Technology Co., Ltd. |
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| CP03 | Change of name, title or address |
Address after: 528437 Torch Road, Torch Development Zone, Guangdong, Zhongshan, No. 22 Patentee after: Ming Yang wisdom Energy Group AG Address before: 528400 five star village, Torch Development Zone, Guangdong, Zhongshan Patentee before: Guangdong Mingyang Wind Power Group Co., Ltd. |
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| CP03 | Change of name, title or address |