CN103184970A - Lightning disaster-reducing method applicable to wind power generating unit - Google Patents
Lightning disaster-reducing method applicable to wind power generating unit Download PDFInfo
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- CN103184970A CN103184970A CN2011104620283A CN201110462028A CN103184970A CN 103184970 A CN103184970 A CN 103184970A CN 2011104620283 A CN2011104620283 A CN 2011104620283A CN 201110462028 A CN201110462028 A CN 201110462028A CN 103184970 A CN103184970 A CN 103184970A
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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 relates to the field of lightning protection in wind power generation, in particular to a lightning disaster-reducing method applicable to a wind power generating unit. Radial conductive needle-shaped metal or radial conductive needle-shaped coatings are installed on the two surfaces of the upper end of a blade of the wind power generating unit, wherein (1) is the blade; and (2) is a radial conductive needle. By the method, before thundercloud performs electrical discharge on the wind power generating unit, the distribution rule of space charges in an electrical field of the thundercloud is distorted, so that the discharge voltage of lightning on an object is changed.
Description
Technical field
The present invention relates to the wind power generation lightning protection field, is the method that a kind of suitable wind-powered electricity generation unit reduces the thunder and lightning disaster.
Background technique
Thunder and lightning (Lightning is also referred to as lightning) refers between charged cloud layer inside, cloud layer or the pulse discharge that takes place between cloud layer and the ground, and the phenomenon of the flash of light of accompanied by intense and huge sound.The pulse that thunder and lightning discharges
Current peak reaches as high as kilo-amperes up to a hundred, and produces powerful electromagnetic pulse (LEMP).The transient overvoltage that thunder and lightning disturbs comprises two-part: the one, by connecting the overvoltage in the outside circuit access arrangement; The 2nd, in the overvoltage of electronic equipment internal owing to thunder and lightning electromagnetic coupling effect generation.
At present China thunderbolt is the method for taking to discharge by lightning conductor the thunder and lightning energy to the prevention nature, its principle is to draw thunder and self, this principle major applications is in building, it is mounted in the peak of building.And the industry equipment that operates in physical environment much is to draw thunder and self, such as electric transmission line, wind-powered electricity generation unit and the computer technology that is closely related with new and high technology, space flight and aviation, field such as communicate by letter.Thunder and lightning is to the harm in these fields, and mainly show as thunder and lightning and produce the interference that powerful transient electromagnetic pulse (LEMP) and too high transient voltage and electric current produce various electronic equipments, even wasting destruction.According to the data introduction, when magnetic intensity reaches 0.03 Gauss, will cause computer to produce misoperation, when reaching 2.4 Gausses, will cause electronic component breakdown.
In the transient state process of thunder discharge, lightning current will generate an electromagnetic field, and produce thunder and lightning electromagnetic effects such as interference and surge overvoltage at the wind-powered electricity generation unit by modes such as radiation, induction and couplings.Owing to be equipped with various electronic equipments for communication, adjusting and data processing intent in wind-powered electricity generation unit electrical equipment and the control system, for electrical equipment, these equipment ubiquities a common weakness, be that insulating strength is low, the overvoltage tolerance is poor, to the electromagnetic interference sensitivity, in a single day they be subjected to the infringement of thunder and lightning electromagnetic interference, it is malfunctioning gently then to work, heavy then permanent damage causes the stoppage in transit accident.We will be appreciated that, because atmospheric electrical phenomena has tangible randomness, under existing guard technology condition, are difficult to accomplish avoid fully electrical equipment to suffer thunder disaster.
Therefore should take the lightning protection technology of multiple mode pointedly, reduce the probability that electrical equipment is struck by lightning and damages to greatest extent, guarantee the safe and reliable operation of electrical equipment.
Summary of the invention
Wind-powered electricity generation unit prevention thunder and lightning disaster is a global problem, also is world subject.The objective of the invention is to reduce the probability that the wind-powered electricity generation unit equipment is struck by lightning and damages to greatest extent, guarantee the safe and reliable operation of electrical equipment.
Realize that the technological scheme that the object of the invention adopts is the coating that metal or the radial conductive pin type shape of radial conduction needle-like are installed on the two-sided top of the blade of wind-powered electricity generation unit, it is characterized in that: it comprises that radial conductive pin type shape metal or coating are connected on the lightning conductor in the blade of wind-powered electricity generation unit, cause that thundercloud produces distortion to space electric charge distribution rule in the preceding thundercloud electric field of wind-powered electricity generation unit discharge, and then change thunder and lightning to object discharge voltage.
The method that described suitable wind-powered electricity generation unit reduces the thunder and lightning disaster is applicable to the transformation of the wind-powered electricity generation unit that has used at present and the wind-powered electricity generation unit of making.
The advantage applies that a kind of suitable wind-powered electricity generation unit of the present invention reduces the method for thunder and lightning disaster exists:
1. its realization does not influence the shape of blade, does not change blade weight yet, does not therefore influence the generating efficiency of wind-powered electricity generation unit;
2. the transformation process construction time is short;
3. cost of investment is low, has bigger Economy;
4. applied widely, be easy to apply;
5. completely contradict with the method for present minimizing thunder and lightning disaster, it is applicable to install and exposes at physical environment, does not allow the equipment of thunder and lightning direct attack and lightning induction again;
6. the result of this technology application can improve thunder and lightning object discharge voltage has been improved 15% to 30% level.
Description of drawings
The method that Fig. 1 reduces the thunder and lightning disaster for a kind of suitable wind-powered electricity generation unit of the present invention shows that blade is installed the metal of radial conduction needle-like or the coating (1) of radial conductive pin type shape is blade; (2) be radial conductive pin.Fig. 2 installs the metal of radial conduction needle-like for the integral body of wind-powered electricity generation unit at blade.
Embodiment
Guidance is of the present invention specifically to practice in order to be used for more easily, and the invention will be further described below in conjunction with accompanying drawing.
With reference to Fig. 1, the method that a kind of suitable wind-powered electricity generation unit of the present invention reduces the thunder and lightning disaster comprises the coating of metal or the radial conductive pin type shape of the radial conduction needle-like on the wind-powered electricity generation unit blade.Described a kind of suitable wind-powered electricity generation unit reduces the method for thunder and lightning disaster, is applicable to the wind-powered electricity generation unit of different capabilities.
A kind of suitable wind-powered electricity generation unit of the present invention reduces the method for thunder and lightning disaster, tries out according to method of the present invention, through in the operation in 1 year in China somewhere, has realized the object of the invention and has reached described effect.
Claims (3)
1. a suitable wind-powered electricity generation unit reduces the method for thunder and lightning disaster, it is characterized in that: it comprises top installation or the metal of the last radial conduction needle-like of spraying or the coating of radial conductive pin type shape on the two-sided blade of wind-powered electricity generation unit, radial conductive pin type shape metal or coating are connected on the lightning conductor in the blade of wind-powered electricity generation unit or grounding end, cause that thundercloud produces distortion to space electric charge distribution rule in the preceding thundercloud electric field of wind-powered electricity generation unit discharge, and then change thunder and lightning to object discharge voltage.
2. a kind of suitable wind-powered electricity generation unit according to claim 1 reduces the method for thunder and lightning disaster, it is characterized in that: the coating of the metal of described radial conduction needle-like or radial conductive pin type shape be total quantity at its pin on the two-sided blade about ten to 30 left and right sides best results.
3. a kind of suitable wind-powered electricity generation unit according to claim 1 reduces the method for thunder and lightning disaster, it is characterized in that: the coating of the metal of described radial conduction needle-like or radial conductive pin type shape be the length of its pin on two-sided blade according to erection space 10 meters following best results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104620283A CN103184970A (en) | 2011-12-28 | 2011-12-28 | Lightning disaster-reducing method applicable to wind power generating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104620283A CN103184970A (en) | 2011-12-28 | 2011-12-28 | Lightning disaster-reducing method applicable to wind power generating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103184970A true CN103184970A (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104620283A Pending CN103184970A (en) | 2011-12-28 | 2011-12-28 | Lightning disaster-reducing method applicable to wind power generating unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878024A (en) * | 2012-09-19 | 2013-01-16 | 吉林市简通电气科技有限公司 | Device for reducing thunder disaster for wind turbine generator |
| CN105736257A (en) * | 2016-04-15 | 2016-07-06 | 王鹏 | Method suitable for wind generation set to reduce lightning disasters |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172534Y (en) * | 1993-05-04 | 1994-07-20 | 东北电力学院 | Prevention-conduction lightning device |
| CN101655071A (en) * | 2008-08-21 | 2010-02-24 | 通用电气公司 | Wind turbine lightning protection system |
| CN101949366A (en) * | 2009-06-29 | 2011-01-19 | 维斯塔斯风力系统集团公司 | The lightning protection net |
| CN201902296U (en) * | 2010-12-22 | 2011-07-20 | 上海艾郎风电科技发展有限公司 | Blade lightning protection device for wind power generation |
| CN201985436U (en) * | 2010-12-31 | 2011-09-21 | 国电联合动力技术有限公司 | Lightning rod |
-
2011
- 2011-12-28 CN CN2011104620283A patent/CN103184970A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172534Y (en) * | 1993-05-04 | 1994-07-20 | 东北电力学院 | Prevention-conduction lightning device |
| CN101655071A (en) * | 2008-08-21 | 2010-02-24 | 通用电气公司 | Wind turbine lightning protection system |
| CN101949366A (en) * | 2009-06-29 | 2011-01-19 | 维斯塔斯风力系统集团公司 | The lightning protection net |
| CN201902296U (en) * | 2010-12-22 | 2011-07-20 | 上海艾郎风电科技发展有限公司 | Blade lightning protection device for wind power generation |
| CN201985436U (en) * | 2010-12-31 | 2011-09-21 | 国电联合动力技术有限公司 | Lightning rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878024A (en) * | 2012-09-19 | 2013-01-16 | 吉林市简通电气科技有限公司 | Device for reducing thunder disaster for wind turbine generator |
| CN105736257A (en) * | 2016-04-15 | 2016-07-06 | 王鹏 | Method suitable for wind generation set to reduce lightning disasters |
| CN105736257B (en) * | 2016-04-15 | 2018-08-14 | 王鹏 | A method of being suitable for Wind turbines and reduces Lightning Disaster |
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Application publication date: 20130703 |