CN105736257A - Method suitable for wind generation set to reduce lightning disasters - Google Patents
Method suitable for wind generation set to reduce lightning disasters Download PDFInfo
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- CN105736257A CN105736257A CN201610233056.0A CN201610233056A CN105736257A CN 105736257 A CN105736257 A CN 105736257A CN 201610233056 A CN201610233056 A CN 201610233056A CN 105736257 A CN105736257 A CN 105736257A
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- lightning
- wind turbines
- conductive needle
- needle shape
- radial conductive
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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
Abstract
The invention discloses a method suitable for a wind generation set to reduce lightning disasters. Metal in a radial conductive needle shape or coatings in a radial conductive needle shape are mounted on the upper portions of the double faces of a paddle of the wind generation set, and the metal or coatings are in series connection with air core inductors or magnetic core inductors, high-voltage diodes and a lightning conductor in the paddle of the wind generation set; the discharge speed of the lightning current slows down through the air core inductors or magnetic core inductors, and induction currents generated by electrical equipment and the number of channels transmitting charges in the direction from the ground to the paddle through the high-voltage diodes can be reduced; and on the contrary, conduction between the lightning current and the ground through the metal in the radial conductive needle shape is obstructed. The method suitable for the wind generation set to reduce the lightning disasters can reduce the probability that wind generation set equipment is damaged by lightning strokes to the maximum extent, and safe and reliable running of the electrical equipment can be ensured.
Description
Technical field
The present invention relates to a kind of method reducing Lightning Disaster suitable in Wind turbines.
Background technology
When occurring to be struck by lightning, lightning current peak value reaches as high as kilo-ampere up to a hundred, and produces powerful electromagnetic pulse.The transient overvoltage of thunder and lightning interference includes two parts: one is by connecting the overvoltage in the circuit access arrangement of outside；Two is the overvoltage produced due to thunder and lightning electromagnetic coupled effect in electronic equipment internal.
At present the method being taken through discharging rod release thunder energy to prevention nature thunderbolt, its principle be draw thunder and self, this principle can be applicable to building, and it is mounted in the peak of building.And the industrial equipment operating in natural environment be much can not draw thunder and self, the field such as such as Wind turbines, transmission line of electricity and the computer technology being closely related with new and high technology, space flight and aviation, communication.The thunder and lightning harm to these fields, main manifestations is the interference that various electronic equipments are produced by the thunder and lightning powerful transient electromagnetic pulse of generation and too high transient voltage and electric current, even wasting destruction.According to data introduction, when magnetic field intensity reaches 0.03 Gauss, may result in computer and produce maloperation, when reaching 2.4 Gauss, may result in electronic component breakdown.
In the transient process of thunder discharge, lightning current will produce electromagnetic field, by modes such as radiation, sensing and couplings in thunder and lightning galvanomagnetic-effects such as Wind turbines generation interference and surge overvoltage.Due in Wind turbines electrical equipment and control system equipped with various for communicating, regulate and the electronic equipment of data processing intent, for electrical equipment, these equipment ubiquities a common weakness, namely dielectric strength is low, and overvoltage tolerance is poor, and electromagnetic interference is sensitive, they are once be subject to the infringement of thunder and lightning electromagnetic interference, light then work malfunctioning, heavy then permanent damage, causes stoppage in transit accident.It should be appreciated that we are owing to atmospheric electrical phenomena has obvious randomness, when existing guard technology, it is difficult to accomplish to avoid electrical equipment to suffer thunder disaster completely.
Therefore should take the Lightning Prevention Technique of various ways pointedly, reduce electrical equipment to greatest extent and suffer the probability of broken by lightning, it is ensured that the safe and reliable operation of electrical equipment.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Wind turbines equipment that can reduce to greatest extent and suffers the probability of broken by lightning, it is ensured that the safe and reliable operation of electrical equipment is applicable to the method that Wind turbines reduces Lightning Disaster.
For solving the problems referred to above, the present invention adopts the following technical scheme that
nullA kind of method reducing Lightning Disaster suitable in Wind turbines，The metal of radial conductive needle shape or the coating of radial conductive needle shape are installed in the two-sided top of blade at Wind turbines，And with air core inductor or core inductance、Lightning conductor series connection in the blade of high-voltage diode and Wind turbines，The lightning current velocity of discharge is slowed down by air core inductor or core inductance，Reduce faradic current that electrical equipment produces and simply transmitted charge pathway to blade direction by ground by high-voltage diode，Otherwise stop lightning current to be turned on to ground by the metal of radial conductive needle shape，Increase the voltage effect above the blade of Wind turbines，Thundercloud is directed to the metal of the two-sided upper installation radial conductive needle shape of blade or the coating of radial conductive needle type shape before Wind turbines is discharged by the electric charge of geoinduction，Thundercloud is reduced Wind turbines is sensed relative voltage，The voltage levvl of 15%-25% is needed to improve by testing the condition being reached disruptive discharge equally，And then the harm that object discharge is produced by thunder and lightning can be considerably reduced.The transformation being applicable to the current Wind turbines being currently in use and the Wind turbines manufactured.
Further, described lightning conductor is additionally provided with grading ring.
Further, stating and be provided with junction point bottom the metal of radial conductive needle shape or the coating of radial conductive needle shape, described junction point is connected with earth lead.
Do not affect the shape of blade when the invention have the benefit that use, also without changing blade weight, therefore do not affect the generating efficiency of Wind turbines, there is presently no the technical method of shape and the weight that can not affect blade；The transformation process construction time is short；Cost of investment is low, has bigger economy；Applied widely, it is easy to popularization and application；Completely contradicting with the method reducing Lightning Disaster at present, it is exposed at natural environment that it is applicable to installation, does not allow again the equipment of thunder and lightning direct attack and lightning induction；The result of this technology application can improve thunder and lightning and object discharge voltage improves the level of 15% to 25%.
Accompanying drawing explanation
Fig. 1 is that Wind turbines installs the partial elevational structure chart of radial conductive needle shape at blade.
Fig. 2 is that Wind turbines installs the partial left TV structure figure of radial conductive needle shape at blade.
Fig. 3 is that Wind turbines installs the overall structure figure of radial conductive needle shape at blade.
Detailed description of the invention
As shown in Figure 1-Figure 3, a kind of method being suitable for Wind turbines minimizing Lightning Disaster, coating 2 including the metal of the radial conductive needle shape on Wind turbines blade 1 or radial conductive needle type shape, and connect with the lightning conductor 6 in the blade 1 of air core inductor or core inductance 4, high-voltage diode 7 and Wind turbines, a kind of described method being suitable for Wind turbines minimizing Lightning Disaster, it is adaptable to the Wind turbines of different capabilities.Described lightning conductor 6 is additionally provided with grading ring 5.Stating and be provided with junction point 3 bottom the metal of radial conductive needle shape or the coating 2 of radial conductive needle shape, described junction point 3 is connected with earth lead.
Do not affect the shape of blade when the invention have the benefit that use, also without changing blade weight, therefore do not affect the generating efficiency of Wind turbines, there is presently no the technical method of shape and the weight that can not affect blade；The transformation process construction time is short；Cost of investment is low, has bigger economy；Applied widely, it is easy to popularization and application；Completely contradicting with the method reducing Lightning Disaster at present, it is exposed at natural environment that it is applicable to installation, does not allow again the equipment of thunder and lightning direct attack and lightning induction；The result of this technology application can improve thunder and lightning and object discharge voltage improves the level of 15% to 25%.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention be not limited thereto, any change expected without creative work or replacement, all should be encompassed within protection scope of the present invention.
Claims (3)
- null1. one kind is applicable to the method that Wind turbines reduces Lightning Disaster，It is characterized in that: the metal of radial conductive needle shape or the coating of radial conductive needle shape are installed in the two-sided top of blade at Wind turbines，And with air core inductor or core inductance、Lightning conductor series connection in the blade of high-voltage diode and Wind turbines，The lightning current velocity of discharge is slowed down by air core inductor or core inductance，Reduce faradic current that electrical equipment produces and simply transmitted charge pathway to blade direction by ground by high-voltage diode，Otherwise stop lightning current to be turned on to ground by the metal of radial conductive needle shape，Increase the voltage effect above the blade of Wind turbines，Thundercloud is directed to the metal of the two-sided upper installation radial conductive needle shape of blade or the coating of radial conductive needle type shape before Wind turbines is discharged by the electric charge of geoinduction，Thundercloud is reduced Wind turbines is sensed relative voltage.
- 2. the method being applicable to Wind turbines minimizing Lightning Disaster described in, it is characterised in that: described lightning conductor is additionally provided with grading ring.
- 3. it is applicable to, described in, the method that Wind turbines reduces Lightning Disaster, it is characterised in that: the metal of described radial conductive needle shape or be provided with junction point bottom the coating of radial conductive needle shape, described junction point is connected with earth lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233056.0A CN105736257B (en) | 2016-04-15 | 2016-04-15 | A method of being suitable for Wind turbines and reduces Lightning Disaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233056.0A CN105736257B (en) | 2016-04-15 | 2016-04-15 | A method of being suitable for Wind turbines and reduces Lightning Disaster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736257A true CN105736257A (en) | 2016-07-06 |
| CN105736257B CN105736257B (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610233056.0A Active CN105736257B (en) | 2016-04-15 | 2016-04-15 | A method of being suitable for Wind turbines and reduces Lightning Disaster |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030170122A1 (en) * | 2000-05-06 | 2003-09-11 | Aloys Wobben | Wind power installation |
| CN103184970A (en) * | 2011-12-28 | 2013-07-03 | 王鹏 | Lightning disaster-reducing method applicable to wind power generating unit |
| CN204553117U (en) * | 2015-04-10 | 2015-08-12 | 天津瑞源电气有限公司 | Wind power generating set automatical control system lightning-protection module |
-
2016
- 2016-04-15 CN CN201610233056.0A patent/CN105736257B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030170122A1 (en) * | 2000-05-06 | 2003-09-11 | Aloys Wobben | Wind power installation |
| CN103184970A (en) * | 2011-12-28 | 2013-07-03 | 王鹏 | Lightning disaster-reducing method applicable to wind power generating unit |
| CN204553117U (en) * | 2015-04-10 | 2015-08-12 | 天津瑞源电气有限公司 | Wind power generating set automatical control system lightning-protection module |
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| CN105736257B (en) | 2018-08-14 |
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Effective date of registration: 20210524 Address after: Room 505b, 5th floor, building e, Shenzhen Street Pioneer Park, Jilin hi tech Industrial Development Zone, 132000 Jilin Province Patentee after: JILIN JIANTONG ELECTRICAL TECHNOLOGY Co.,Ltd. Address before: 132000 No. 26-7-80 Diannan Hutong, Chuanying District, Jilin City, Jilin Province Patentee before: Wang Peng |