CN101793240B - Lightning arrester of wind turbine generator - Google Patents

Lightning arrester of wind turbine generator Download PDF

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Publication number
CN101793240B
CN101793240B CN2010101451715A CN201010145171A CN101793240B CN 101793240 B CN101793240 B CN 101793240B CN 2010101451715 A CN2010101451715 A CN 2010101451715A CN 201010145171 A CN201010145171 A CN 201010145171A CN 101793240 B CN101793240 B CN 101793240B
Authority
CN
China
Prior art keywords
blade
wheel hub
lightning
cable
lightning arrester
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.)
Expired - Fee Related
Application number
CN2010101451715A
Other languages
Chinese (zh)
Other versions
CN101793240A (en
Inventor
王志刚
李毅鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiyuan Heavy Industry Co Ltd
Original Assignee
Taiyuan Heavy Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taiyuan Heavy Industry Co Ltd filed Critical Taiyuan Heavy Industry Co Ltd
Priority to CN2010101451715A priority Critical patent/CN101793240B/en
Publication of CN101793240A publication Critical patent/CN101793240A/en
Application granted granted Critical
Publication of CN101793240B publication Critical patent/CN101793240B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/30Lightning protection
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The invention discloses a lightning arrester of a wind turbine generator and relates to the wind turbine generator with a variable pitch device. The lightning arrester of the wind turbine generator can solve the problems that the existing lightning arrester has poor lightning arresting effect and is easy to damage parts of the wind turbine generator. The lightning arrester is mounted between blades 3 containing a cable 3.1, a lightning receiving device 3.2 and blade bolts 3.3 and a hub 2, wherein the blades 3 are connected at an inner ring of a variable pitch bearing 1 through the blade bolts 3.3, the hub 2 is connected with an outer ring of the variable pitch bearing 1 through a bolt, and the lightning arrester is characterized in that the cable is a copper braided cable 10, the two ends of the cable are respectively fixed on the blades 3 and the hub 2 through the bolts, and the blades 3 can directly reach the hub 2 through lightning current introduced by the lightning receiving device 3.2 and the copper braided cable 10.

Description

A kind of lightning arrester of wind-powered electricity generation unit
Technical field
The present invention relates to the wind-powered electricity generation unit, the wind power generation unit blade of change sizing device and the lightning arrester between the wheel hub are particularly arranged.
Background technique
Lightning arrester is as shown in Figure 1 between wind power generation unit blade that uses now and the wheel hub, and by becoming slurry bearing 1, wheel hub 2 contains the blade 3 of cable 3.1, arrester 3.2, blade bolt 3.3, carbon brush 4, carbon brush support 5, bolt 6 compositions such as grade.Blade 3 is connected the inner ring that becomes slurry bearing 1 through blade bolt 3.3, and wheel hub 2 links together through bolt and the outer ring that becomes slurry bearing 1.When blade 3 and wheel hub 2 relatively rotated, the Internal and external cycle that becomes slurry bearing 1 was respectively along with blade 3 and wheel hub 2 rotate, to guarantee that blade 3 can turn to suitable position on request.Carbon brush 4 is installed on the carbon brush support 5, and carbon brush support 5 is installed on the wheel hub 2 through bolt 6.When blade 3 arrives the inner ring of change slurry bearings 1 through connecing the lightning current that dodges the device importing through cable 3.1, arrester 3.2, blade bolt 3.3, carbon brush 4 will import to wheel hub 2 bodies at the electric current of change slurry bearing 1 inner ring, accomplish the process with the thunder and lightning water conservancy diversion.But because of carbon brush 4 and the inner ring that becomes slurry bearing 1 are in the revolution Frotteurism all the time; Also be that carbon brush 4 can not be guaranteed to contact fully with the inner ring that becomes slurry bearing 1; Good conductive; Still have the part electric current directly through becoming slurry bearing 1 inner ring, become slurry bearing 1 ball, becoming slurry bearing 1 outer ring and get into wheel hub 2, be prone to the ball that becomes slurry bearing 1, raceway etc. are caused damage, shorten the working life that becomes slurry bearing 1.
Summary of the invention
The object of the invention is intended to overcome the shortcoming of existing technology, and a kind of lightning arrester of wind-powered electricity generation unit is provided, and utilizes copper braid directly to connect blade and wheel hub, can guarantee lightning current fully from the blade water conservancy diversion to hub body.Solve the lightning-arrest weak effect of existing lightning arrester, be prone to cause the problem of wind-powered electricity generation unit damage parts.
The present invention seeks to realize through following technological scheme:
A kind of lightning arrester of wind-powered electricity generation unit is installed between blade and the wheel hub, and wherein blade contains cable, arrester, blade bolt; Blade pass is crossed the blade bolt and is connected the inner ring that becomes the slurry bearing; Wheel hub links together through bolt and the outer ring that becomes the slurry bearing, and said cable is a kind of copper braid, and its two ends are fixed by bolts to respectively on blade and the wheel hub; Blade pass is crossed the lightning current that arrester imports; Directly arrive wheel hub through copper braid, it is characterized in that: said copper braid is wrapped on the wire rope, and wire rope is separately fixed on blade and the wheel hub through wire cable clamp and lifting bolt.
The present invention compared with prior art; Owing to utilize copper braid directly to connect blade and wheel hub; Can guarantee lightning current fully from the blade water conservancy diversion to hub body, effectively protected become the slurry bearing, electrical equipment is not damaged, and has prolonged the working life that becomes the slurry bearing.Extensive popularization of the present invention will produce tangible economic benefit.
Description of drawings
Fig. 1 is lightning arrester between existing blade and the wheel hub.
Fig. 2 is a lightning arrester between blade of the present invention and the wheel hub.
The present invention is described further through preferred embodiment below in conjunction with accompanying drawing.
Embodiment
As shown in Figure 2, a kind of lightning arrester of wind-powered electricity generation unit is installed between blade 3 and the wheel hub 2, and blade 3 is connected the inner ring that becomes slurry bearing 1 through the blade bolt, and wheel hub 2 links together through bolt and the outer ring that becomes slurry bearing 1.Blade 3 contains cable 3.1, arrester 3.2, blade bolt 3.3.Said cable is copper braid 10, and its two ends are fixed by bolts to respectively on blade 3 and the wheel hub 2, and the lightning current that blade 3 imports through arrester 3.2 directly arrives wheel hubs 2 through copper braid 10.Simultaneously constantly caused damage by whipping for fear of unit copper braid 10 in running; Wire rope 8 is separately fixed on blade 3 and the wheel hub 2 through wire cable clamp 7 and lifting bolt 9; Simultaneously copper braid 10 is wrapped on the wire rope 8; Wire rope 8 is installed as relative exceptionally straight state, and whipping is less, and the whipping of copper braid 10 is littler.When blade 3 relatively rotated with wheel hub 2, copper braid 10 was done moving among a small circle in company with wire rope 8, and when wheel hub 2 also time rotational simultaneously, the whipping scope of copper braid 10 is limited in the small range by wire rope 8.Therefore, can guarantee lightning current fully from blade 3 water conservancy diversion to guarantee again that to wheel hub 2 bodies copper braid 10 has long working life.

Claims (1)

1. the lightning arrester of a wind-powered electricity generation unit; Be installed between blade (3) and the wheel hub (2); Wherein blade contains cable (3.1), arrester (3.2), blade bolt (3.3), and blade (3) is connected the inner ring that becomes slurry bearing (1) through blade bolt (3.3), and wheel hub (2) links together through bolt and the outer ring that becomes slurry bearing (1); Said cable is a kind of copper braid (10); Its two ends are fixed by bolts to respectively on blade (3) and the wheel hub (2), and the lightning current that blade (3) imports through arrester (3.2) directly arrives wheel hub (2) through copper braid (10); It is characterized in that: said copper braid (10) is wrapped on the wire rope (8), and wire rope (8) is separately fixed on blade (3) and the wheel hub (2) through wire cable clamp (7) and lifting bolt (9).
CN2010101451715A 2010-04-09 2010-04-09 Lightning arrester of wind turbine generator Expired - Fee Related CN101793240B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010101451715A CN101793240B (en) 2010-04-09 2010-04-09 Lightning arrester of wind turbine generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010101451715A CN101793240B (en) 2010-04-09 2010-04-09 Lightning arrester of wind turbine generator

Publications (2)

Publication Number Publication Date
CN101793240A CN101793240A (en) 2010-08-04
CN101793240B true CN101793240B (en) 2012-05-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010101451715A Expired - Fee Related CN101793240B (en) 2010-04-09 2010-04-09 Lightning arrester of wind turbine generator

Country Status (1)

Country Link
CN (1) CN101793240B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316827B2 (en) 2014-11-11 2019-06-11 General Electric Company Conduit assembly for a lightning protection cable of a wind turbine rotor blade

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536677A (en) * 2010-12-22 2012-07-04 上海艾郎风电科技发展有限公司 Vane lightning arrestor for wind power generation
CN102094768A (en) * 2011-01-21 2011-06-15 太原重工股份有限公司 Connecting device for guiding lightning current between blade and hub
CA2772211C (en) 2011-03-22 2018-02-27 Envision Energy (Denmark) Aps A partial pitch wind turbine blade with lightning protection
JP2012237208A (en) * 2011-05-10 2012-12-06 Mitsubishi Heavy Ind Ltd Windmill
CN102367786A (en) * 2011-11-01 2012-03-07 中国石油天然气集团公司 Megawatt-level fan pitch-variable sliding lightning guiding device
CN103670957B (en) * 2014-01-03 2016-06-29 国电联合动力技术有限公司 A kind of wind-driven generator with special cable cabling mode
EP3472463B1 (en) 2016-06-20 2021-04-07 Vestas Wind Systems A/S Method of securing cables to a wind turbine blade
CN108571427B (en) * 2018-04-19 2019-11-26 安徽六和同心风能设备有限公司 A kind of wind power generating set lightning protection device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1662743A (en) * 2002-06-19 2005-08-31 Neg麦康公司 Lightning protection means for a wind turbine
CN1711418A (en) * 2002-11-12 2005-12-21 Lm玻璃纤维制品有限公司 Lightning protection of a pitch-controlled wind turbine blade
CN101008377A (en) * 2006-01-24 2007-08-01 上海玻璃钢研究院 Derotator of fixed pitch stall-regulated wind turbine generator blade
CN101263300A (en) * 2005-07-05 2008-09-10 维斯塔斯风力系统有限公司 A wind turbine pitch bearing and its use
CN101463802A (en) * 2007-12-21 2009-06-24 广东明阳风电技术有限公司 Lightning protection system for wind generator set

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1662743A (en) * 2002-06-19 2005-08-31 Neg麦康公司 Lightning protection means for a wind turbine
CN1711418A (en) * 2002-11-12 2005-12-21 Lm玻璃纤维制品有限公司 Lightning protection of a pitch-controlled wind turbine blade
CN101263300A (en) * 2005-07-05 2008-09-10 维斯塔斯风力系统有限公司 A wind turbine pitch bearing and its use
CN101008377A (en) * 2006-01-24 2007-08-01 上海玻璃钢研究院 Derotator of fixed pitch stall-regulated wind turbine generator blade
CN101463802A (en) * 2007-12-21 2009-06-24 广东明阳风电技术有限公司 Lightning protection system for wind generator set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316827B2 (en) 2014-11-11 2019-06-11 General Electric Company Conduit assembly for a lightning protection cable of a wind turbine rotor blade

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