CN107201994B - A kind of Wind turbines Equipotential connection method and system - Google Patents
A kind of Wind turbines Equipotential connection method and system Download PDFInfo
- Publication number
- CN107201994B CN107201994B CN201710439609.2A CN201710439609A CN107201994B CN 107201994 B CN107201994 B CN 107201994B CN 201710439609 A CN201710439609 A CN 201710439609A CN 107201994 B CN107201994 B CN 107201994B
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- China
- Prior art keywords
- wind turbines
- equipotential
- cable
- insulation displacement
- tower
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/80—Arrangement of components within nacelles or towers
- F03D80/82—Arrangement of components within nacelles or towers of electrical components
- F03D80/85—Cabling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
- H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of Wind turbines Equipotential connection methods, it include: the tower section number that the electric component of equipotential link and the quantity of mechanical part and position, Wind turbines downlead line footpath and length and Wind turbines are needed on Wind turbines mainframe determining first；Multiple electrical grounding points are determined again, and cable insulation displacement connector is installed, by the cable insulation displacement connector by electric component in cabin and the nearest equipotential link of mainframe, and by downlead in tower and tower section equipotential link, and downlead bottom is connected with grounded screen.The invention also discloses a kind of equipotential link systems formed using above-mentioned connection method.The present invention forms class M type equipotential link mode by the way that cable insulation displacement connector is arranged inside its cabin and tower, and by the equipotential link of cable insulation displacement connector realization compartment components and grounded screen.The resistance value that the equipotential link system has reduced or eliminated compartment components equipotential link is poor, voltage difference and common mode interference caused by reducing or eliminating because of resistance value difference.
Description
Technical field
The present invention relates to Wind turbines equipotential link technical fields, more particularly to a kind of Wind turbines equipotential link
Method and system.
Background technique
Currently, the design of earthed system is more and more important in the design of wind power generating set, validity and reliability meeting
The reliability of the electrical system of wind power generating set is produced bigger effect.The earthed system of current Wind turbines is mostly using remittance
The earthing mode that copper bar and downlead combine is flowed to realize.
But under this earthing mode, due to the distance of grounding point and confluence copper bar not etc. to cause different grounding points and
Ground resistance between confluence copper bar has difference, while having certain pressure difference between downlead and Wind turbines tower.Especially
It is during inductive load startup stage and Wind turbines big in Wind turbines are struck by lightning, due to the electricity between grounding point
Resistance difference will cause voltage counterattack or common mode interference.
It can be seen that above-mentioned existing Wind turbines earthed system is upper in structure, method and use, it is clear that there are still have not
Just it with defect, and needs to be further improved.How a kind of new Wind turbines Equipotential connection method and system are founded,
Make its reduce or eliminate in existing equipotential link because resistance value difference caused by voltage difference and common mode interference.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Wind turbines Equipotential connection methods, reduce or eliminate it
In existing equipotential link because resistance value difference caused by voltage difference and common mode interference.
In order to solve the above technical problems, the present invention provides a kind of Wind turbines Equipotential connection method, the equipotential connects
The method of connecing includes the following steps:
1) all electric components and machinery that need to carry out equipotential link on the mainframe of the Wind turbines are determined first
The quantity of component and position；
2) line footpath and length of the Wind turbines mainframe equipotential downlead are determined, while determining the Wind turbines
The tower section number of tower；
3) according to the position of the electric component and mechanical part, the position of its corresponding electrical grounding point is determined
It sets, in the electrical grounding point and Wind turbines tower section junction, cable insulation displacement connector is installed；
Wherein, the cable insulation displacement connector includes the two clamping units connected by metal guide rod, and the clamping unit includes
It is pressed from both sides with the endless metal for not being closed opening and the fastener for tightening the opening, the endless metal presss from both sides and the gold
Belong to guide rod connection, and the inner wall of endless metal folder is equipped with several prickers towards center, the pricker is described tight
It is realized under the action of firmware and cable sheath is punctured；
4) earth cable that the electric component and mechanical part are drawn is connected to the one of corresponding cable insulation displacement connector
It in a clamping unit and locks, and is clamped a bonding wire in another clamping unit of the cable insulation displacement connector
Cable, the other end of the equipotential link cable are connect with the Wind turbines mainframe；And
The downlead that the mainframe is drawn is connected in a clamping unit of corresponding cable insulation displacement connector and is locked
Tightly, and in another clamping unit of the cable insulation displacement connector equipotential link cable, the equipotential link are clamped
The other end of cable is connect with the tower connecting flange；
5) downlead is finally connected with grounded screen.
As an improvement of the present invention, the both ends of the endless metal folder opening are respectively arranged with connecting flange, described
Fastener realizes the deflation to the opening by the connecting flange.
It is further improved, the fastener is fastening bolt.
It is further improved, endless metal folder outside is provided with insulating sheath.
It is further improved, the resistance value between the tower and downlead should be less than 50 milliohms.
It is further improved, the equipotential link cable, which uses, is not less than 50mm2Cable.
The present invention also provides a kind of Wind turbines equipotential links using above-mentioned Wind turbines Equipotential connection method
The clamping of the cable inside the wind turbine cabin and tower at equipotential link point is arranged in including several in system
Device,
Wherein, for the cable insulation displacement connector inside the wind turbine cabin is arranged in, one clamping unit is used
In the earth cable that clamping is drawn by electric component in the Wind turbines and mechanical part, another clamping unit is for blocking
The equipotential link cable connecting with the mainframe of the Wind turbines is connect, it is real under the action of the clamping unit fastener
The equipotential link of existing earth cable and equipotential link cable and mainframe；
For the cable insulation displacement connector inside the Wind turbines tower is arranged in, one clamping unit is for being clamped
The downlead drawn by the mainframe, another clamping unit be used for be clamped connect with the tower of the Wind turbines etc.
Current potential connection cables realize downlead and equipotential link cable and tower under the action of the clamping unit fastener
Equipotential link；
The downlead bottom is connected with grounded screen.
By adopting such a design, the present invention has at least the following advantages:
1, Wind turbines Equipotential connection method of the present invention by inside its cabin and tower be arranged cable insulation displacement connector, and
It is realized in cabin between electric component and the equipotential link and downlead and tower of mechanical part by the cable insulation displacement connector
Equipotential link forms class M type equipotential link mode.On the one hand the Wind turbines equipotential link system can reduce or disappear
Except the resistance value of compartment components equipotential link is poor, reduce or eliminate in equipotential link because of voltage difference caused by resistance value difference, together
When eliminate tower and downlead because of common mode interference caused by resistance value difference, eliminating equipotential link influences wind power generating set
The hidden danger of stable operation.
2, cable insulation displacement connector of the present invention is not closed the endless metal folder of opening by setting, and in the inner wall of the metal clip
Several prickers towards center are equipped with, causes the pricker to be realized under the action of fastener and cable sheath is punctured,
And the connection by metal guide rod to two metal clips, realize the equipotential for the cable being respectively engaged in two clamping units
Connection, smart structural design are easy to use and operate.
Detailed description of the invention
The above is merely an overview of the technical solutions of the present invention, in order to better understand the technical means of the present invention, below
In conjunction with attached drawing, the present invention is described in further detail with specific embodiment.
Fig. 1 is the schematic perspective view of cable insulation displacement connector clamping cable in the present invention.
Fig. 2 is the main view of cable insulation displacement connector clamping cable of the present invention.
Fig. 3 be in Fig. 2 C-C to structure sectional view.
Fig. 4 is the longitudinal sectional view of Fig. 2.
Fig. 5 is the structural schematic diagram of Wind turbines equipotential link system of the present invention.
Fig. 6 is the use state diagram of cable insulation displacement connector in Wind turbines equipotential link system of the present invention.
Specific embodiment
Wind turbines equipotential link system of the present invention, including several settings are inside the wind turbine cabin and tower
The cable insulation displacement connector at equipotential link point forms Wind turbines by the connection of several cable insulation displacement connectors and cable
Multiple spot equipotential link system.
Wherein referring to shown in attached drawing 1-4, which should including the two clamping units connected by metal guide rod 4
Clamping unit includes with the endless metal folder 6 and the fastener 5 for tightening the opening for not being closed opening.The endless metal
Folder 6 is connect with the metal guide rod 4, and the inner wall of endless metal folder 6 is equipped with several prickers 7 towards center.In this way when
When being clamped cable in this two clamping units, while fastener 5 locks opening, which punctures the crust of cable 1
2, to realize the reliable contacts of metal clip and cable conductor, then by the connection of metal guide rod, realize the equal electricity of two cables
Position connection.
Preferred embodiment is that the both ends of 6 opening of endless metal folder are respectively arranged with connecting flange, which passes through
The connecting flange realizes the deflation to the opening.The fastener is fastening bolt, not only acts as the effect for puncturing cable sheath,
Have the function of that anti-cable loosens simultaneously.The clamping unit is adaptable to the cable of different line footpaths in the present embodiment.
The electric leakage of the cable insulation displacement connector in order to prevent, 6 outside of endless metal folder is provided with insulating sheath 3, to install
The safety of operator is protected when cable.
In the present embodiment Wind turbines equipotential link system, for the cable inside the wind turbine cabin is arranged in
Insulation displacement connector, one clamping unit are used to be clamped by the earth cable of electric component in the Wind turbines and mechanical part extraction,
Its another clamping unit is for being clamped the equipotential link cable connecting with the mainframe of the Wind turbines, in the clamping unit
Under the action of fastener, it is grounded the equipotential link of cable and equipotential link cable and mainframe；
For the cable insulation displacement connector inside the Wind turbines tower is arranged in, one clamping unit is for being clamped by this
The downlead that mainframe is drawn, another clamping unit is for being clamped the equipotential link connecting with the tower of the Wind turbines
Cable realizes that the equipotential of downlead and equipotential link cable and tower connects under the action of the clamping unit fastener
It connects；The final downlead bottom is connected with grounded screen, then forms Wind turbines multiple spot equipotential link system, realize entire wind
The equipotential link of power generator group.
Referring to shown in attached Figures 5 and 6, the Equipotential connection method of Wind turbines equipotential link system of the present invention is specific to wrap
Include following steps:
1) all electric components and Machinery Ministry that need to carry out equipotential link on the mainframe of the Wind turbines are determined first
The quantity of part and position；
2) line footpath and length of the Wind turbines mainframe equipotential downlead are determined, while determining the Wind turbines tower
Tower section number；
3) according to the position of the electric component and mechanical part, the position of its corresponding electrical grounding point is determined,
And need to guarantee the length and line footpath of every equipotential link cable when determining equipotential link point, in the electrical grounding point
With the Wind turbines tower section junction, which is installed；
4) earth cable that the electric component and mechanical part are drawn is connected to one of corresponding cable insulation displacement connector
It in clamping unit and locks, and is clamped one in another clamping unit of the cable insulation displacement connector and is not less than 50mm2Equal electricity
Position connection cables, the other end of the equipotential link cable are connect with the Wind turbines mainframe；And
The downlead that the mainframe is drawn is connected in a clamping unit of corresponding cable insulation displacement connector and is locked,
And one is clamped in another clamping unit of the cable insulation displacement connector and is not less than 50mm2Equipotential link cable, the equal electricity
The other end of position connection cables is connect with the tower connecting flange；
5) downlead is finally connected with grounded screen, after the completion of connection, measures the resistance value between tower section and downlead,
Resistance value should be less than 50 milliohms.
It is simple using structure the present invention overcomes the position difference of electric component and mechanical part each in Wind turbines
Cable insulation displacement connector realizes that each electric component and mechanical part are connect with mainframe recently, eliminates because caused by resistance difference altogether
Mould interference.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, this
Field technical staff makes a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all falls within this hair
In bright protection scope.
Claims (6)
1. a kind of Wind turbines Equipotential connection method, which is characterized in that the Equipotential connection method includes the following steps:
1) all electric components and mechanical part that need to carry out equipotential link on the mainframe of the Wind turbines are determined first
Quantity and position；
2) line footpath and length of the Wind turbines mainframe equipotential downlead are determined, while determining the Wind turbines tower
Tower section number；
3) according to the position of the electric component and mechanical part, the position of its corresponding electrical grounding point is determined,
Cable insulation displacement connector is installed in the electrical grounding point and Wind turbines tower section junction；
Wherein, the cable insulation displacement connector includes the two clamping units connected by metal guide rod, and the clamping unit includes having
It is not closed the endless metal folder of opening and the fastener for tightening the opening, the endless metal folder is led with the metal
Bar connection, and the inner wall of endless metal folder is equipped with several prickers towards center, the pricker is in the fastener
Under the action of realize cable sheath punctured；
4) earth cable that the electric component and mechanical part are drawn is connected to a card of corresponding cable insulation displacement connector
It in order member and locks, and is clamped an equipotential link cable, institute in another clamping unit of the cable insulation displacement connector
The other end for stating equipotential link cable is connect with the Wind turbines mainframe；And
The downlead that the mainframe is drawn is connected in a clamping unit of corresponding cable insulation displacement connector and is locked, and
It is clamped an equipotential link cable in another clamping unit of the cable insulation displacement connector, the equipotential link cable
The other end is connect with the tower connecting flange；
5) downlead is finally connected with grounded screen.
2. Wind turbines Equipotential connection method according to claim 1, which is characterized in that the endless metal folder opening
Both ends be respectively arranged with connecting flange, the fastener realizes the deflation to the opening by the connecting flange.
3. Wind turbines Equipotential connection method according to claim 1, which is characterized in that the fastener is fastening spiral shell
Bolt.
4. Wind turbines Equipotential connection method according to claim 1, which is characterized in that endless metal folder outside
It is provided with insulating sheath.
5. Wind turbines Equipotential connection method according to claim 1, which is characterized in that the tower and downlead it
Between resistance value should be less than 50 milliohms.
6. a kind of Wind turbines equipotential using Wind turbines Equipotential connection method as described in any one in claim 1-5
Connection system, which is characterized in that including several settings inside the wind turbine cabin and tower at equipotential link point
The cable insulation displacement connector,
Wherein, for the cable insulation displacement connector inside the wind turbine cabin is arranged in, one clamping unit is for blocking
Connect by electric component in the Wind turbines and mechanical part extraction earth cable, another clamping unit for be clamped with
The equipotential link cable of the mainframe connection of the Wind turbines, under the action of the clamping unit fastener, realization is connect
The equipotential link of ground cable and equipotential link cable and mainframe；
For the cable insulation displacement connector inside the Wind turbines tower is arranged in, one clamping unit is for being clamped by institute
The downlead of mainframe extraction is stated, another clamping unit is for being clamped the equipotential connecting with the tower of the Wind turbines
Connection cables, under the action of the clamping unit fastener, realize downlead and equipotential link cable and tower etc.
Current potential connection；
The downlead bottom is connected with grounded screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439609.2A CN107201994B (en) | 2017-06-12 | 2017-06-12 | A kind of Wind turbines Equipotential connection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439609.2A CN107201994B (en) | 2017-06-12 | 2017-06-12 | A kind of Wind turbines Equipotential connection method and system |
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| Publication Number | Publication Date |
|---|---|
| CN107201994A CN107201994A (en) | 2017-09-26 |
| CN107201994B true CN107201994B (en) | 2019-05-21 |
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ID=59908160
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710439609.2A Active CN107201994B (en) | 2017-06-12 | 2017-06-12 | A kind of Wind turbines Equipotential connection method and system |
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| Country | Link |
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| CN (1) | CN107201994B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098938A (en) * | 2018-07-16 | 2018-12-28 | 北京乾源风电科技有限公司 | A kind of potential difference elimination system for wind power generation plant |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA002958B1 (en) * | 1997-11-28 | 2002-12-26 | Абб Аб | A wing power plant |
| CN202417821U (en) * | 2012-02-17 | 2012-09-05 | 神华集团有限责任公司 | Wind power communication control system |
| CN204706652U (en) * | 2015-04-13 | 2015-10-14 | 江苏飞锦达科技有限公司 | A kind of wind-driven generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2637183T3 (en) * | 2013-05-23 | 2017-10-11 | Nordex Energy Gmbh | Wind turbine rotor blade with an electric heating device and several lightning protection conductors |
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2017
- 2017-06-12 CN CN201710439609.2A patent/CN107201994B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA002958B1 (en) * | 1997-11-28 | 2002-12-26 | Абб Аб | A wing power plant |
| CN202417821U (en) * | 2012-02-17 | 2012-09-05 | 神华集团有限责任公司 | Wind power communication control system |
| CN204706652U (en) * | 2015-04-13 | 2015-10-14 | 江苏飞锦达科技有限公司 | A kind of wind-driven generator |
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| Publication number | Publication date |
|---|---|
| CN107201994A (en) | 2017-09-26 |
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