WO2016063672A1 - 風力発電装置の異常監視装置 - Google Patents

風力発電装置の異常監視装置 Download PDF

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Publication number
WO2016063672A1
WO2016063672A1 PCT/JP2015/076892 JP2015076892W WO2016063672A1 WO 2016063672 A1 WO2016063672 A1 WO 2016063672A1 JP 2015076892 W JP2015076892 W JP 2015076892W WO 2016063672 A1 WO2016063672 A1 WO 2016063672A1
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WO
WIPO (PCT)
Prior art keywords
monitoring device
unit
lubricating oil
sensor
wind turbine
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.)
Ceased
Application number
PCT/JP2015/076892
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English (en)
French (fr)
Japanese (ja)
Inventor
彰利 竹内
隆 長谷場
啓介 橋爪
一輝 小屋町
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.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co Ltd
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Filing date
Publication date
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of WO2016063672A1 publication Critical patent/WO2016063672A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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

Definitions

  • This invention relates to an abnormality monitoring device for a wind turbine generator.
  • Japanese Patent Application Laid-Open No. 2005-233722 discloses a foreign matter detection system capable of detecting when a very small amount of foreign matter is mixed in the lubricating oil.
  • This foreign matter detection system includes a capturing means for capturing foreign matter (for example, magnetic powder such as iron powder, and other foreign matter) in a pipe through which a fluid (for example, lubricating oil) flows, and releasing the captured foreign matter, and the released foreign matter.
  • a detecting means for detecting that the gas flows through the pipe, and a control means.
  • the control means is configured to control the foreign matter to be captured by the catching means for a time period in which the foreign matter stays until it can be detected by the detection means, and to release the foreign matter when the time has elapsed.
  • the foreign matter detection system as described above can also be applied to a system for circulating lubricating oil that lubricates a gearbox of a wind power generator, for example.
  • Lubricating oil that lubricates the gearbox of a wind turbine generator may be mixed with iron powder due to gear damage or aging.
  • As one of the abnormality monitoring items of the speed increaser of the wind power generator it is considered to detect iron powder in the lubricating oil.
  • it is necessary to install a light transmission sensor or the like.
  • a sensor for abnormality monitoring such as a light transmission sensor requires a DC low voltage (for example, 5 to 15 V) power supply voltage supplied to the sensor itself.
  • a DC low voltage for example, 5 to 15 V
  • the wiring for supplying the power supply voltage in the nacelle of the wind turbine generator requires labor and time for installation of the monitoring device, and causes a failure of the monitoring device. Therefore, it is preferable that the number of wires for installing the monitoring device is small.
  • the present invention has been made to solve the above-described problems, and an object thereof is to provide an abnormality monitoring device for a wind turbine generator in which the number of wirings is reduced.
  • the present invention is an abnormality monitoring device for a wind power generator, and is provided in a circulation path for circulating lubricating oil that lubricates movable parts of the wind power generator, and generates power by receiving the flow of the lubricating oil.
  • a power generation unit and a detection unit that detects occurrence of an abnormality in the wind turbine generator using the power generated by the power generation unit.
  • the power generation unit includes an impeller that rotates in response to the flow of the lubricating oil, and a generator that generates electric power with the rotational force of the impeller.
  • the detection unit includes a sensor that detects foreign matter in the lubricating oil.
  • the abnormality monitoring device includes a calculation unit that is supplied with a power supply voltage from a power source different from the detection unit and calculates the amount of foreign matter mixed in the lubricating oil based on the output of the sensor.
  • the calculating unit detects the flow rate of the lubricating oil based on the rotational speed of the impeller, and calculates the amount of foreign matter mixed in the lubricating oil based on the detected flow rate and the output of the sensor.
  • the senor includes an irradiation unit that irradiates the lubricating oil with light using electric power generated by the power generation unit, and a light receiving unit that detects the amount of light transmitted through the lubricating oil.
  • the senor is provided upstream of the impeller in the circulation path.
  • the detection unit includes a sensor that detects foreign matter in the lubricating oil and a wireless transmission unit that wirelessly transmits information detected by the sensor.
  • the abnormality monitoring device further includes a monitoring device main body to which a power supply voltage is supplied from a power source different from the detection unit.
  • the monitoring apparatus main body includes a wireless reception unit that receives information transmitted by the wireless transmission unit, a calculation unit that calculates the amount of foreign matter mixed in the lubricant based on the information received by the wireless reception unit, and a calculation result of the calculation unit. And a storage unit for storing.
  • the detection unit includes a vibration sensor that detects the vibration of the wind turbine generator using the power generated by the power generation unit.
  • the number of wires for installing the abnormality monitoring device is reduced, and an abnormality monitoring device that is easy to work and difficult to break down can be realized.
  • FIG. 2 is a diagram schematically showing the structure of a sensor unit 150.
  • FIG. 4 is a cross-sectional view showing a cross section taken along line IV-IV in FIG. 3. It is a block diagram which shows the structure of the abnormality monitoring apparatus 145.
  • FIG. 1 is a diagram schematically showing a configuration of a wind turbine generator 1 including a state detection device according to the present embodiment.
  • the wind power generator 1 includes a plurality of blades 20, a nacelle 100, and a tower 200.
  • the nacelle 100 is provided at the upper end of the tower 200.
  • a main shaft 110, a main bearing 120, a speed increaser (gear box) 130, a generator 140, and an abnormality monitoring device 145 are stored.
  • the abnormality monitoring device 145 includes a sensor unit 150 and a monitoring device main body 160.
  • the blade 20 is provided at the tip of the main shaft 110 and converts wind force into rotational torque and transmits it to the main shaft 110.
  • the main shaft 110 is rotatably supported by the main bearing 120 inside the nacelle 100 and transmits the rotational torque received from the blade 20 to the speed increaser 130.
  • the speed increaser 130 is provided between the main shaft 110 and the generator 140, and increases the rotational speed of the main shaft 110 and outputs it to the generator 140.
  • the generator 140 is connected to the output shaft 131 of the speed increaser 130 and generates power by the rotational torque received from the speed increaser 130.
  • the generator 140 is configured by, for example, an induction generator.
  • a circulation device 170 for circulating the lubricating oil to the speed increaser 130.
  • FIG. 2 is a diagram schematically showing a configuration of a circulation device 170 for circulating the lubricating oil to the speed increaser 130.
  • the circulation device 170 includes an oil pan 171, a pipe 172, a pump 173, and an oil filter 174.
  • the oil pan 171 is provided at the lower part of the speed increaser 130.
  • One end of the pipe 172 is connected to the lower part of the oil pan 171, and the other end of the pipe 172 is connected to the upper part of the speed increaser 130.
  • the pump 173 and the oil filter 174 are provided on the path of the pipe 172.
  • the lubricating oil stored in the oil pan 171 is supplied from one end of the pipe 172 to the oil filter 174 and filtered.
  • the lubricating oil that has passed through the oil filter 174 is sent out from the pump 173, spontaneously falls from the other end of the pipe 172 provided on the top of the speed increasing device 130, and is supplied to the gear 132 in the speed increasing device 130. .
  • the lubricating oil supplied to the gear 132 is returned to the oil pan 171 by natural fall.
  • the sensor unit 150 is provided in the pipe 172 between the oil pan 171 and the oil filter 174.
  • the position where the sensor unit 150 is provided is not necessarily limited to the portion after the pump 173 as long as it is on the route of the pipe 172. Further, the arrangement order of the oil filter 174, the pump 173, and the sensor unit 150 may not be as shown in FIG.
  • the monitoring device main body 160 is composed of a CPU (Central Processing Unit) (not shown) and a unit incorporating a memory. Based on the information stored in the memory, the output value of the sensor unit 150, etc., the lubricating oil flowing in the pipe 172 It is determined whether or not a foreign matter such as iron powder is mixed in. When the monitoring device main body 160 determines that foreign matter is mixed in the lubricating oil, it issues a warning by turning on a lamp (not shown) or the like, or an abnormality is detected in a remote monitor via a telephone line or a wireless line. Send data for judgment.
  • a lamp not shown
  • Send data for judgment Send data for judgment.
  • power generation is performed in the vicinity of the sensor, and the power supply voltage is supplied to the sensor and the wireless transmission unit.
  • FIG. 3 is a diagram schematically showing the structure of the sensor unit 150.
  • FIG. 4 is a cross-sectional view showing a cross section taken along line IV-IV in FIG.
  • the sensor unit 150 includes a transmissive optical sensor 151 that detects the transmitted light amount of the lubricating oil supplied to the speed increaser 130.
  • the optical sensor 151 includes light emitting elements 151A and 151B and light receiving elements 151C and 151D.
  • the sensor unit 150 further includes a power generation unit 152 that receives the flow of the lubricating oil sent from the oil pan 171 toward the pump 173 and generates power.
  • the power generation unit 152 includes an impeller 153 that rotates in response to the flow of lubricating oil, a generator 155 that rotates when the impeller 153 rotates, and generates electric power. The rotation of the impeller 153 is transmitted to the rotor of the generator 155.
  • a transmission shaft 154 A transmission shaft 154.
  • the sensor unit 150 further receives a vibration sensor 190 for detecting gear vibration of the gearbox 130, an output of the optical sensor 151, and an output of the vibration sensor 190, and wirelessly transmits data included in these outputs.
  • Wireless transmission unit 158 Wireless transmission unit 158.
  • the impeller 153 rotates, the flow of the lubricating oil is disturbed. If disturbance of the lubricating oil flow occurs in the vicinity of the optical sensor 151, the accuracy with which the optical sensor 151 detects foreign matter such as iron powder may be deteriorated.
  • the impeller 153 is arranged downstream of the optical sensor 151 in the flow of the lubricating oil, the disturbance of the lubricating oil flow due to the rotation of the impeller 153 does not affect the optical sensor 151. Therefore, as shown in FIGS. 3 and 4, it is preferable that the impeller 153 be disposed downstream of the flow of the lubricating oil from the optical sensor 151.
  • the sensor unit 150 further includes a flow path portion 157 in which a translucent portion is formed of transparent acrylic or the like. Flange is formed at both ends of the flow path portion 157 and is fastened to the pipe 172 by a fastening member 180.
  • the sensor unit 150 is transported to the construction site of the wind power generator in a state where the optical sensor, the power generation unit, and the wireless transmission unit are attached to the flow path unit 157 in advance.
  • the installation work of the sensor unit 150 only needs to fasten the fastening member 180 and wire the vibration sensor 190 and the wireless transmission unit 158.
  • the sensor unit 150 may be sold as a product with the optical sensor 151, the power generation unit 152, and the wireless transmission unit attached to the flow path unit 157 in advance, and the person in charge of construction works in advance before going to the construction site. It may be assembled.
  • FIG. 5 is a block diagram showing the configuration of the abnormality monitoring device 145.
  • abnormality monitoring device 145 includes a sensor unit 150 and a monitoring device main body 160.
  • the power supply voltage V ⁇ b> 1 generated by the generator 155 is supplied to the sensor unit 150.
  • the monitoring apparatus main body 160 is supplied with the power supply voltage V2 from the switchboard 400 installed in the nacelle of the wind turbine generator.
  • the sensor unit 150 includes an optical sensor 151, a rotation speed sensor 156, a vibration sensor 190, and a wireless transmission unit 158.
  • the optical sensor 151 detects a foreign matter in the lubricating oil by detecting a change in the light transmission amount of the lubricating oil.
  • the rotational speed sensor 156 detects the rotational speed of the impeller 153 that rotates the generator 155.
  • the vibration sensor 190 detects the vibration of the gear box 130.
  • the rotational speed sensor 156 may not be provided.
  • the vibration sensor 190 may detect a vibration of a portion other than the speed increaser 130.
  • the wireless transmission unit 158 wirelessly transmits information included in the outputs of the optical sensor 151, the rotation speed sensor 156, and the vibration sensor 190 to the monitoring apparatus main body 160.
  • the monitoring apparatus main body 160 includes a wireless reception unit 162, a calculation unit 164, and a storage unit 166.
  • the wireless reception unit 162 receives the information transmitted by the wireless transmission unit 158.
  • the calculation unit 164 calculates the amount of foreign matter mixed in the lubricating oil based on the information received by the wireless reception unit 162.
  • the storage unit 166 stores the calculation result of the calculation unit 164.
  • the calculation result stored in the storage unit 166 may be collected by an operator who has come to check during maintenance, or may be transmitted to a remote supervisor via a telephone line or a wireless line (not shown).
  • the arithmetic unit 164 When the arithmetic unit 164 detects that the lubricating oil is contaminated due to the light transmission amount detected by the optical sensor 151 being lower than a predetermined value, the arithmetic unit 164 notifies a supervisor by turning on a warning lamp (not shown). To do.
  • the calculation unit 164 calculates the flow rate of the lubricating oil based on the output of the rotation speed sensor 156 and corrects the light transmission amount. For example, when the contamination of the lubricating oil is determined based on the integrated value of the light transmission amount during the determination time, the light transmission amount can be corrected by changing the length of the determination time according to the flow velocity. .
  • the relationship between the rotational speed and the flow rate, and the relationship between the flow rate and the length of the determination time have been experimentally determined in advance. It is good to map it.
  • the abnormality monitoring device for the wind turbine generator is provided in a circulation path for circulating the lubricating oil that lubricates movable parts such as the speed increaser 130 of the wind turbine generator.
  • a power generation unit 152 that generates power in response to the flow of the lubricating oil and a detection unit 159 that detects the occurrence of an abnormality in the wind turbine generator using the power generated by the power generation unit 152 are provided.
  • the power generation unit 152 includes an impeller 153 that rotates in response to the flow of the lubricating oil, and a generator 155 that generates electric power with the rotational force of the impeller 153.
  • the detection unit 159 includes an optical sensor 151 that detects foreign matter in the lubricating oil.
  • the abnormality monitoring device includes a calculation unit 164 that is supplied with a power supply voltage V2 from a power source different from the detection unit 159 and calculates the amount of foreign matter mixed in the lubricant based on the output of the optical sensor 151.
  • the calculation unit 164 detects the flow rate of the lubricant based on the rotational speed of the impeller 153, and calculates the amount of foreign matter mixed in the lubricant based on the detected flow rate and the output of the optical sensor 151.
  • the optical sensor 151 includes an irradiation unit (light emitting elements 151A and 151B) that irradiates the lubricating oil with light using the electric power generated by the power generation unit, and a light receiving unit (light receiving element) that detects the amount of light transmitted through the lubricating oil. 151C, 151D).
  • an irradiation unit light emitting elements 151A and 151B
  • a light receiving unit light receiving element
  • the optical sensor 151 is provided upstream of the impeller 153 in the circulation path.
  • the detection unit 159 includes an optical sensor 151 that detects foreign matter in the lubricating oil, and a wireless transmission unit 158 that wirelessly transmits information detected by the optical sensor 151.
  • the abnormality monitoring device 145 further includes a monitoring device main body 160 to which the power supply voltage V2 is supplied from a power source different from the detection unit 159.
  • the monitoring apparatus main body 160 includes a wireless reception unit 162 that receives information transmitted by the wireless transmission unit 158, a calculation unit 164 that calculates the amount of foreign matter mixed in the lubricant based on the information received by the wireless reception unit 162, And a storage unit 166 that stores the calculation result of the unit 164.
  • the detection unit 159 includes a vibration sensor 190 that detects the vibration of the wind turbine generator using the power generated by the power generation unit 152.
  • the sensor unit 150 is attached to a part of the piping 172 of the oil circulation system, the impeller 153 is attached to a part of the sensor unit 150, and power is generated by the flow of the lubricating oil. Sensors are driven by the generated power.
  • the calculation unit 164 corrects the output of the optical sensor 151 according to the change in the flow velocity, and increases the accuracy of the amount of foreign matter per unit volume to prevent false alarms.
  • the power supply voltage generated by the sensor unit 150 is also supplied to the vibration sensor 190.
  • the power generated by the impeller 153 is also used as the power source of the wireless transmission unit 158.

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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)
PCT/JP2015/076892 2014-10-23 2015-09-24 風力発電装置の異常監視装置 Ceased WO2016063672A1 (ja)

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JP2014216342A JP2016084714A (ja) 2014-10-23 2014-10-23 風力発電装置の異常監視装置
JP2014-216342 2014-10-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106159945A (zh) * 2016-08-05 2016-11-23 三峡大学 一种基于多场景模式下的风电连锁脱网路径链搜寻方法
CN106208045A (zh) * 2016-08-05 2016-12-07 三峡大学 一种避免集群风电场连锁脱网的分层分级控制方法

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JP2018194011A (ja) * 2017-05-12 2018-12-06 株式会社日立製作所 風力発電機のグリースの監視システムおよび方法
JP6919986B2 (ja) * 2017-06-30 2021-08-18 株式会社日立製作所 風力発電機の潤滑油の監視システムおよび方法
CN108590982B (zh) * 2018-03-26 2020-08-11 华北电力大学 一种风电机组限功率运行的异常数据处理方法
JP7032258B2 (ja) * 2018-07-17 2022-03-08 株式会社日立製作所 風力発電機診断システムおよび方法
JP7252737B2 (ja) * 2018-11-08 2023-04-05 株式会社日立製作所 風力発電機のグリースの監視システムおよび方法

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JP5510926B2 (ja) * 2010-03-26 2014-06-04 Ｎｔｎ株式会社 ブレード用軸受の異常検出装置および異常検出方法
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JP2011125817A (ja) * 2009-12-18 2011-06-30 Mitsubishi Heavy Ind Ltd 油中水分・異物除去装置および油中水分・異物除去方法
JP2011208635A (ja) * 2010-03-12 2011-10-20 Ntn Corp 摩耗検知装置およびそれを備える風力発電装置ならびに摩耗検知方法
US20120025529A1 (en) * 2011-05-31 2012-02-02 General Electric Company System and Methods for Monitoring Oil Conditions of a Wind Turbine Gearbox
JP2013185507A (ja) * 2012-03-08 2013-09-19 Ntn Corp 状態監視システム
US20130309088A1 (en) * 2012-05-15 2013-11-21 Clipper Windpower, Llc Method for Protecting Wind Turbine Equipment in Fire Event
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106159945A (zh) * 2016-08-05 2016-11-23 三峡大学 一种基于多场景模式下的风电连锁脱网路径链搜寻方法
CN106208045A (zh) * 2016-08-05 2016-12-07 三峡大学 一种避免集群风电场连锁脱网的分层分级控制方法

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