CN1916584B - 用于检测由于雷击造成风能涡轮机转子叶片损坏的装置 - Google Patents

用于检测由于雷击造成风能涡轮机转子叶片损坏的装置 Download PDF

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CN1916584B
CN1916584B CN2006101150317A CN200610115031A CN1916584B CN 1916584 B CN1916584 B CN 1916584B CN 2006101150317 A CN2006101150317 A CN 2006101150317A CN 200610115031 A CN200610115031 A CN 200610115031A CN 1916584 B CN1916584 B CN 1916584B
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thunderbolt
spinner blade
electric field
rotor blade
wind energy
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CN1916584A (zh
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C·施拉姆
F·克鲁格
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General Electric Co
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    • 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
    • F03D80/30—Lightning protection
    • 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
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/80—Diagnostics
    • 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

一种用于检测风能涡轮机以及特别是风能涡轮机转子叶片由于雷击而损坏的装置，该装置包括沿着风能涡轮机的转子叶片(14)分布以便测量沿着转子叶片(14)的磁场和/或电场强度的多个磁场和/或电场感测器(12)；以及连接到磁场和/或电场感测器(12)上以便接收其测量信号的评价单元(20)，其中通过评价单元(20)根据沿着转子叶片(14)长度的磁场和/或电场的测量强度计算由于雷击造成的风能涡轮机以及特别是转子叶片(14)的损坏。

Description

用于检测由于雷击造成风能涡轮机转子叶片损坏的装置
技术领域
本发明涉及一种用于检测由于击打在转子叶片上的雷击造成风能涡轮机转子叶片损坏的装置。
背景技术
风能涡轮机转子叶片的雷击保护基本上是公知的。转子保护系统包括穿过和/或沿着转子叶片延伸的导体，以便将击打在转子叶片上的雷击造成的电流接地。现在，用于风能涡轮机转子叶片的雷击保护系统不监测转子叶片是否有由于雷击而损坏。但是，转子叶片的气体动力性能可由于损坏而受到影响。这继而造成风能涡轮机效率减小。同样转子叶片的寿命由于雷击而缩短，这种效果同样不能由公知的系统监测。
因此，需要一种系统，使其可以评价风能涡轮机部件的寿命和性能。
发明内容
本发明提供一种用于检测风能涡轮机转子叶片或风能涡轮机的其它部件由于雷击而损坏的装置，其包括：
沿着风能涡轮机的转子叶片分布以便测量沿着转子叶片的磁场和/或电场强度的多个磁场和/或电场感测器；以及
连接到磁场和/或电场感测器上以便接收其测量信号的评价单元；
其中通过评价单元根据沿着转子叶片长度的磁场和/或电场的测量强度计算由于雷击造成的风能涡轮机以及特别是转子叶片的损坏。
按照本发明，多个磁场和/或电场感测器(下面称为场感测器)嵌置在风能涡轮机的转子叶片内。通过这些场感测器，根据场强度与未损坏转子叶片的场强度的变化，可以测量沿着转子叶片的长度的磁场和/或电场强度(此后称为场强度)，在连接到场感测器上以便接收其测量信号的评价单元内可以计算由于雷击造成的转子叶片的损坏(即转子叶片或风能涡轮机的例如轮毂、机舱或其壳体的其它部件的合成材料中的分层和/或孔)。另外，可以设置同样连接到评价单元上的接地电流感测器。最后，通过采用转子叶片和/或其它部件和/或整个风能涡轮机的雷击性能的分析模型，可以计算由于雷击造成的损坏的类型和程度。这都使得人们可以建立风能涡轮机雷击寿命计量器，从而进一步理解风能涡轮机的雷击保护性能。这种先进的雷击检测系统的输出可结合在以往雷击失效分析的数据库中，并且可以开发风能涡轮机的先进维护策略，特别是用于离岸式风能涡轮机的应用。
在本发明的优选实施例中，场强度感测器是嵌置在转子叶片的壳体内的铁磁回路线材。这些感测器可以经由纤维线材连接到雷击电阻上。一个或多个天线也可布置在转子叶片中。这种天线是用于将雷击电流导引接地的接地导体。
附图说明
参考附图，更加详细地描述本发明。
图1示意表示本发明雷击检测系统的主要部件。
具体实施方式
本发明的寿命计量器包括例如嵌置在转子叶片的合成材料内的感测器的感测器、敏感数据线中的集成电流探头，结合风能涡轮机部件以及特别是其转子叶片的雷击性能的分析模型，在线测量沿着转子叶片的场强度以及风能涡轮机的电子部件(如果需要)中的场强度，以及接地电流测量。雷击寿命计量器包括雷击检测系统测量电流范围和雷击的时间标记。这种测量系统可包括位于塔上的天线和/或叶片中的磁卡。采用这种风能涡轮机雷击寿命计量器，可以更好理解风能涡轮机的雷击保护性能。这种先进的雷击检测系统的输出可结合到数据库中以便进行寿命期间雷击失效分析，并且可以开发一种用于离岸式应用的先进维护策略。
如附图示意所示，雷击检测装置10包括在其壳体沿着转子叶片14的长度分布的多个回路线材式磁场强度感测器12。导体16延伸穿过转子叶片14，并且在雷击时由导体16传导的接地电流通过感测器18测量。磁场强度感测器12以及接地电流感测器18连接到评价单元18上。根据沿着转子叶片14长度测量的场强度以及接地电流，可以计算由于雷击造成的转子叶片损坏的程度。结合风能涡轮机雷击性能的分析模型，可以建立雷击寿命计量器。
虽然参考其特定的实施例描述和说明的本发明，不应该将本发明局限于示例性的实施例中。本领域普通技术人员将理解到可以进行多种变型和改型，而不偏离由下面权利要求限定的本发明的真实范围。因此打算将落入所附权利要求及其等同物范围内的所有变型和改型包括在本发明中。

Claims (4)

1.一种用于检测风能涡轮机转子叶片由于雷击而损坏的装置，该装置包括：
沿着风能涡轮机的转子叶片(14)的长度分布以便测量沿着转子叶片(14)的磁场或电场强度的多个磁场或电场感测器(12)；以及
连接到磁场或电场感测器(12)上以便接收测量的磁场或电场强度的评价单元(20)；
其中，评价单元(20)构造成根据测量的磁场或电场强度来计算由于雷击造成的转子叶片(14)的损坏。
2.如权利要求1所述的装置，其特征在于，评价单元(20)构造成根据测量的磁场或电场强度以及转子叶片的雷击性能的分析模型来计算由于雷击造成的转子叶片(14)的损坏。
3.如权利要求2所述的装置，其特征在于，评价单元构造成计算由于雷击造成的转子叶片(14)的损坏的类型和/或程度。
4.如权利要求1所述的装置，其特征在于，还包括沿着转子叶片的长度延伸并连接到地的电流导体，以及连接到电流导体上以便感测通过雷击在转子叶片上造成的电流并经由电流导体接地的电流感测器(18)，其中评价单元(20)构造成根据测量的磁场或电场强度以及感测的电流来计算由于雷击造成的转子叶片(14)的损坏。
CN2006101150317A 2005-08-17 2006-08-17 用于检测由于雷击造成风能涡轮机转子叶片损坏的装置 Expired - Fee Related CN1916584B (zh)

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EP05107571.1A EP1754887B1 (en) 2005-08-17 2005-08-17 Device for detecting lightning strike damage to a wind turbine blade
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EP1754887A1 (en) 2007-02-21
EP1754887B1 (en) 2015-10-21
CN1916584A (zh) 2007-02-21
ES2556645T3 (es) 2016-01-19
US7806657B2 (en) 2010-10-05
US20070041834A1 (en) 2007-02-22
DK1754887T3 (en) 2016-01-11

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