CN208236584U - A kind of wind power generation unit blade lightning-protection system - Google Patents
A kind of wind power generation unit blade lightning-protection system Download PDFInfo
- Publication number
- CN208236584U CN208236584U CN201721906919.2U CN201721906919U CN208236584U CN 208236584 U CN208236584 U CN 208236584U CN 201721906919 U CN201721906919 U CN 201721906919U CN 208236584 U CN208236584 U CN 208236584U
- Authority
- CN
- China
- Prior art keywords
- lightning
- insulating layer
- protection system
- conductive
- strap bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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 utility model embodiment discloses a kind of wind power generation unit blade lightning-protection system, for promoting the lightning protection properties of Wind turbines.The wind turbine generator set lightning protection system includes: blade, lightning conducter, bolt hole, insulating layer, conductive strap bolt, conductive strips, conductive hammer and earthing or grounding means；The lightning conducter is located at the blade interior；The spiro keyhole position is in the root of the blade；The lightning conducter is bolted with the conductive strips；The insulating layer wraps up conductive strap bolt, for increasing the dielectric strength of the conductive strap bolt side；The conduction strap bolt is fixed in the insulating layer, is installed in bolt hole；After the blade receives lightning current, the conductive strap bolt into is guided the lightning current by the lightning conducter, the conduction strap bolt guides lightning current into conductive strips and flows to earthing or grounding means through conduction hammer by way of gap discharge.
Description
Technical field
The utility model relates to wind power generation field more particularly to a kind of wind turbine generator set lightning protection systems.
Background technique
Wind energy is a kind of reproducible green clean energy resource, and Wind turbines are the devices that can utilize wind power generation, with
The increase of Wind turbines single-machine capacity and the increase of fuselage height, the positive increasingly significant of the seriousness of Wind turbines Lightning Disaster.
In the prior art, the blade of Wind turbines is generally provided with lightning protection structure, as shown in Figure 1, blade 100 by
To when lightning stroke, the blade tip of blade 100 is provided with arrester (being not drawn into figure), which passes through blade lightning-protection line for lightning current
The conduction of road 101 is to conductive strap bolt 103, and then conductive strap bolt 103 is guided conductive strips 102 by lightning current and put by gap
The mode of electricity flows to earthing or grounding means 107 through conduction hammer 106, so that Wind turbines be protected not damaged by lightning current.
As shown in Fig. 2, conductive strap bolt 103 is stud, for conductive strips 102 to be fixed on blade 100, and by thunder
By conductive strips bolt head, axially conductive hammer 106 and earthing or grounding means 107 are guided in electric discharge into electric current；Blade fixing bolt 104 is length
Bolt, a part implantation blade interior, a part is connected with wheel hub, for blade 100 to be fixed on wheel hub 105.
However, in practical applications, when lightning current is conducted to conductive strap bolt 103, generated in conductive strap bolt 103 compared with
High current potential, and be easy with the radial electric discharge of the good conductor blade fixing bolt 104 of electric current to generate damage to blade.
Utility model content
The utility model embodiment provides a kind of wind turbine generator set lightning protection system, for promoting the lightning protection of Wind turbines
Energy.
Wind turbine generator set lightning protection system provided by the embodiment of the utility model, comprising:
Blade, lightning conducter, bolt hole, insulating layer, conductive strap bolt, conductive strips, conductive hammer and earthing or grounding means；
The lightning conducter is located at the blade interior；
The spiro keyhole position is in the root of the blade；
The lightning conducter is bolted with the conductive strips；
The insulating layer wraps up conductive strap bolt, for increasing the dielectric strength of the conductive strap bolt side；
The conduction strap bolt is fixed in the insulating layer, is installed in bolt hole；
After the blade receives lightning current, the conductive strips spiral shell into is guided the lightning current by the lightning conducter
Bolt, the conduction strap bolt guide lightning current into conductive strips and flow to earthing or grounding means through conduction hammer by way of gap discharge.
Optionally, the insulating layer is circular ring structure.
Optionally, the material of the insulating layer is propyl polypropylene.
Optionally, the insulating layer, which is installed in the bolt hole, includes:
Optionally, the conductive strap bolt, which is installed in the insulating layer, includes:
The insulating layer both ends are by glue sealing in bolt hole.
Optionally, the glue is western stuck glue.
Optionally, the annulus pipe thickness is 4 millimeters, and the annulus bore is 12 millimeters.
Optionally, the insulating layer length is 86.7 millimeters.
Optionally, the conductive strap bolt is screw-rod structure.
Optionally, the model M12 of the conductive strap bolt, length are 120 millimeters.
As can be seen from the above technical solutions, the utility model embodiment has the advantage that
After the blade receives lightning current, which into is guided the lightning current by the lightning conducter, due to
Conductive strap bolt has carried out insulation processing, so that the conduction strap bolt is by lightning current, axially conductive hammer is guided in electric discharge into and ground connection fills
It sets, avoids radially destruction of the electric discharge to blade of conductive strap bolt, promote the lightning protection properties of Wind turbines.
Detailed description of the invention
Fig. 1 is a schematic diagram of wind turbine generator set lightning protection system in the prior art；
Fig. 2 is another schematic diagram of wind turbine generator set lightning protection system in the prior art；
Fig. 3 is a schematic diagram of wind turbine generator set lightning protection system in the utility model embodiment；
Specific embodiment
The utility model embodiment provides a kind of wind power generation unit blade lightning-protection system, for promoting the lightning protection of Wind turbines
Performance.
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
The specification and claims of the utility model and term " first " in above-mentioned attached drawing, " second ", " third ",
" 4th " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein or describing
Content other than sequence implement.In addition, term " includes " and " having " and their any deformation, it is intended that covering is not
Exclusive includes, for example, the process, method, system, product or equipment for containing a series of steps or units be not necessarily limited to it is clear
Step or unit those of is listed on ground, but is not clearly listed or for these process, methods, product or is set
Standby intrinsic other step or units.
In order to make it easy to understand, the wind turbine generator set lightning protection system in the utility model embodiment is described below, please join
Fig. 3 is read, the wind turbine generator set lightning protection system in the utility model embodiment includes:
Blade 200, lightning conducter 201, bolt hole 202, insulating layer 203, conductive strap bolt 204, conductive strips 205, conductive hammer
206 and earthing or grounding means 207；
The lightning conducter 201 is located inside the blade 200；
The bolt hole 202 is located at the root of the blade 200；
The lightning conducter 201 is connect with conductive strap bolt 204；
The insulating layer 203 wraps up conductive strap bolt 204, for increasing the dielectric strength of the conductive strap bolt side；
The conduction strap bolt 204 is fixed in the insulating layer 203, is installed in bolt hole；
After blade 200 receives lightning current, conductive strap bolt 204, conductive strips into are guided lightning current by lightning conducter 201
Bolt 204 guides lightning current into conductive strips 202, and thunder and lightning is flowed through conductive 206 flow direction of hammer by way of gap discharge and is grounded
Device 207.
Preferably, which is circular ring structure, the dielectric strength for conductive strap bolt 204.
Preferably, the material of the insulating layer 203 is propyl polypropylene.
Preferably, which is fixed in the strap bolt hole 202 include: the insulating layer 203 by glue sealing in
In bolt hole 202.
Preferably, it includes: that the conduction strap bolt 204 passes through glue which, which is fixed in the insulating layer 203,
It is fixed in the insulating layer 203.
Preferably, which is western stuck glue.
Preferably, which is 4 millimeters, which is 12 millimeters.
Preferably, which is 86.7 millimeters.
Preferably, which is screw-rod structure.
Preferably, the model M12 of the conduction strap bolt 204, length are 120 millimeters.
The utility model embodiment has the advantage that after the blade receives lightning current, is incited somebody to action by the lightning conducter
The lightning current guides the conduction strap bolt into, and since conductive strap bolt is installed in insulating layer, conductive strap bolt is axial by lightning current
Conductive hammer and earthing or grounding means are guided in electric discharge into, are avoided radially destruction of the electric discharge to blade of conductive strap bolt, are promoted the anti-of Wind turbines
Thunder performance.
The above, above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model is described in detail according to previous embodiment, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (10)
1. a kind of wind power generation unit blade lightning-protection system characterized by comprising
Blade, lightning conducter, bolt hole, insulating layer, conductive strap bolt, conductive strips, conductive hammer and earthing or grounding means；
The lightning conducter is located at the blade interior；
The spiro keyhole position is in the root of the blade；
The lightning conducter is bolted with the conductive strips；
The insulating layer wraps up conductive strap bolt, for increasing the dielectric strength of the conductive strap bolt side；
The conduction strap bolt is fixed in the insulating layer, is installed in bolt hole；
After the blade receives lightning current, the conductive strap bolt into is guided the lightning current by the lightning conducter,
The conduction strap bolt guides lightning current into conductive strips and flows to earthing or grounding means through conduction hammer by way of gap discharge.
2. lightning-protection system according to claim 1, which is characterized in that the insulating layer is circular ring structure.
3. lightning-protection system according to claim 2, which is characterized in that the material of the insulating layer is propyl polypropylene.
4. lightning-protection system according to claim 3, which is characterized in that the insulating layer is installed on packet in the bolt hole
Include: the insulating layer both ends are by glue sealing in bolt hole.
5. lightning-protection system according to claim 4, which is characterized in that the conduction strap bolt is installed in the insulating layer
Include:
The conduction strap bolt is fixed in the insulating layer by glue.
6. lightning-protection system according to claim 4 or 5, which is characterized in that the glue is western stuck glue.
7. lightning-protection system according to any one of claims 2 to 5, which is characterized in that the annulus pipe thickness is 4 millis
Rice, the annulus bore are 12 millimeters.
8. lightning-protection system according to claim 7, which is characterized in that the insulating layer length is 86.7 millimeters.
9. lightning-protection system according to any one of claims 1 to 5, which is characterized in that the conduction strap bolt is screw rod knot
Structure.
10. lightning-protection system according to any one of claims 1 to 5, which is characterized in that the model of the conduction strap bolt
M12, length are 120 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721906919.2U CN208236584U (en) | 2017-12-29 | 2017-12-29 | A kind of wind power generation unit blade lightning-protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721906919.2U CN208236584U (en) | 2017-12-29 | 2017-12-29 | A kind of wind power generation unit blade lightning-protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236584U true CN208236584U (en) | 2018-12-14 |
Family
ID=64578120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721906919.2U Active CN208236584U (en) | 2017-12-29 | 2017-12-29 | A kind of wind power generation unit blade lightning-protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208236584U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361159A (en) * | 2017-12-29 | 2018-08-03 | 华润新能源（连州）风能有限公司 | A kind of wind power generation unit blade lightning-protection system |
| WO2021069040A1 (en) * | 2019-10-08 | 2021-04-15 | Vestas Wind Systems A/S | A wind turbine comprising a lightning protection system |
-
2017
- 2017-12-29 CN CN201721906919.2U patent/CN208236584U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361159A (en) * | 2017-12-29 | 2018-08-03 | 华润新能源（连州）风能有限公司 | A kind of wind power generation unit blade lightning-protection system |
| WO2021069040A1 (en) * | 2019-10-08 | 2021-04-15 | Vestas Wind Systems A/S | A wind turbine comprising a lightning protection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2463979B1 (en) | Fault-ride-through method, converter and power generating unit for a wind turbine | |
| CN105604812B (en) | Lightning receptor, blade lightning protection system and blade of wind generating set | |
| CN208236584U (en) | A kind of wind power generation unit blade lightning-protection system | |
| US10030634B2 (en) | Wind power generation system | |
| CN102227077A (en) | Tower arrangement structure at cable terminal | |
| JP2009115052A (en) | Lightning damage prevention of wind powered generator device rotor blade | |
| CN102158023B (en) | Method for manufacturing insulation structure of rotor coil of wind driven generator | |
| CN108711684A (en) | A kind of electric force pole tower shared system | |
| CN205178463U (en) | Can switch grounding box with electricity | |
| King et al. | Switching transients in offshore wind farms–impact on the offshore and onshore networks | |
| CN114753979B (en) | Lightning stroke protection system for blades of wind generating set | |
| CN108361159A (en) | A kind of wind power generation unit blade lightning-protection system | |
| CN202474544U (en) | Contact box capable of preventing corona discharge | |
| CN105390978A (en) | Lightning-caused breakage preventing method for insulated overhead line | |
| CN105610140A (en) | Lightning protection surge protection device | |
| CN203871092U (en) | Novel sheath structure for improving insulating property of overhead bare conductor | |
| CN106952681A (en) | Lightning-protective cable and its processing technology | |
| CN105896312A (en) | Lightning protection apparatus of installing lightning attractor on same tower of overhead power distribution line in insulation mode | |
| CN103825233A (en) | High-voltage bus and method for improving current-carrying capability of high-voltage bus | |
| CN208299437U (en) | A kind of energy consumption molded line road composite lightning-protection device certainly | |
| CN201747532U (en) | Lightning protection system of wind generating unit | |
| CN103696911B (en) | A kind of wind power generating set lighting protection device, wind power generating set and lightening arresting method | |
| CN203276980U (en) | Isolation voltage adjustable insulator string used for electric power experiment and applied to lightning protection research | |
| CN201975782U (en) | Lightning protection and ground protection device for wind generating set | |
| CN105429093A (en) | Earth box capable of achieving live-line switching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |