CN211950752U - Wind turbine tower operating condition monitoring device - Google Patents

Wind turbine tower operating condition monitoring device Download PDF

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Publication number
CN211950752U
CN211950752U CN202020561265.XU CN202020561265U CN211950752U CN 211950752 U CN211950752 U CN 211950752U CN 202020561265 U CN202020561265 U CN 202020561265U CN 211950752 U CN211950752 U CN 211950752U
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Prior art keywords
wind turbine
sensor
tower
vibration
module
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CN202020561265.XU
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Inventor
韩斌
甘勇
孙世辉
王忠杰
王迪
刘瑞
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Xian Thermal Power Research Institute Co Ltd
Huaneng Power International Inc
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Xian Thermal Power Research Institute Co Ltd
Huaneng Power International Inc
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Abstract

A wind turbine tower operation state monitoring device comprises a vibration sensor for acquiring vibration information of the top of a wind turbine tower; the inclination angle sensor is used for obtaining the inclination information of the wind turbine tower; the bolt loosening sensor is used for acquiring the information of the tightness state of the connecting bolt; the conditioning acquisition module is connected with the three sensors and used for supplying power, amplifying, filtering and acquiring signals; temporarily storing the signals processed by the three conditioning acquisition modules, solving and preprocessing the amplitude and the effective value, and storing the processed result data and the original signal data into an RAM unit of a storage unit; the data transmission module is connected with the storage unit and transmits the data in the storage unit to the data receiving module; the device also comprises a power supply module; the utility model discloses can monitor simultaneously pylon inclination, the vibration of cabin, bolted connection's fastening state, reduce the monitoring facilities's of on-the-spot installation quantity, be favorable to more comprehensive monitoring the running state of wind energy conversion system pylon comprehensively.

Description

Wind turbine tower operating condition monitoring device
Technical Field
The utility model relates to a wind energy conversion system pylon running state monitoring technology field, concretely relates to wind energy conversion system pylon running state monitoring devices.
Background
The wind turbine tower is generally composed of a plurality of sections, the sections are connected through bolts, the connection state of the bolt connection is directly related to whether the connection between the sections of the tower is safe and reliable, and the current wind turbine tower operation state monitoring system cannot simultaneously monitor the inclination angle of the tower, the vibration of a cabin and the fastening state of the bolt connection.
Disclosure of Invention
In order to overcome the problems existing in the prior art, the utility model aims to provide a wind turbine tower running state monitoring devices can monitor the fastening state of the vibration of pylon inclination, cabin, bolted connection simultaneously, has reduced the quantity of the monitoring facilities of on-the-spot installation, is favorable to more comprehensive monitoring the running state of wind turbine tower.
In order to achieve the technical purpose, the utility model adopts the following technical proposal:
a wind turbine tower operation state monitoring device comprises a vibration sensor 1, a vibration sensor and a control circuit, wherein the vibration sensor is used for measuring and obtaining radial and axial vibration signals at the top of a wind turbine tower so as to obtain vibration information at the top of the wind turbine tower; the inclination angle sensor 2 is used for measuring and obtaining inclination angle signals of the top and the bottom of the wind turbine tower so as to obtain inclination information of the wind turbine tower; the bolt loosening sensor 3 is used for measuring and obtaining fastening state signals of the connecting bolts at the upper section, the middle section and the lower section of the wind turbine tower so as to obtain tightness state information of the connecting bolts; the vibration signal conditioning and acquisition module 4 is connected with the vibration sensor 1, is used for supplying power to the vibration sensor 1, amplifying and filtering signals of the vibration sensor and acquiring the signals, and the inclination angle signal conditioning and acquisition module 5 is connected with the inclination angle sensor 2, is used for supplying power to the inclination angle sensor 2, amplifying and filtering signals of the inclination angle sensor and acquiring the signals; the bolt loosening signal conditioning and collecting module 6 is connected with the bolt loosening sensor 3, supplies power to the bolt loosening sensor 3, amplifies and filters a bolt loosening sensor signal and collects the signal; the system is connected with a vibration signal conditioning and collecting module 4, an inclination angle signal conditioning and collecting module 5 and a bolt loosening signal conditioning and collecting module 6, temporarily stores signals processed by the three conditioning and collecting modules, performs amplitude and effective value solving pretreatment, and stores processed result data and original signal data into an RAM unit 7 of a storage unit 8; the storage unit 8 is connected with the RAM unit 7, and is used for storing the data transmitted by the RAM unit 7 on site, so that the storage capacity is strong, and the monitoring data can be stored for at least one week; the data transmission module 9 is connected with the storage unit 8 and transmits the data in the storage unit 8 to the data receiving module 11 through a network protocol; the data receiving module 11 is connected with the data transmitting module 9 and receives the data transmitted by the data transmitting module 9; and the power supply module 10 is connected with the vibration signal conditioning and collecting module 4, the inclination angle signal conditioning and collecting module 5, the bolt loosening signal conditioning and collecting module 6, the RAM unit 7, the storage unit 8, the data transmission module 9 and the data receiving module 11 and supplies power to the data transmission module 9 and the data receiving module 11.
The vibration sensors 1 are respectively arranged at the position, close to the tower, of the top of the wind turbine tower, of the machine room frame and at the position of a cross beam at the lower left of the gear box.
The tilt angle sensor 2 comprises a tower top tilt angle sensor and a tower bottom tilt angle sensor, the tower top tilt angle sensor is arranged at a position which does not influence the rotation of a cabin of the wind turbine below a yaw flange at the top of a tower of the wind turbine, the horizontal position is close to a tower lighting lamp, and the tower bottom tilt angle sensor is arranged at the center of a base of the wind turbine and fixed on a concrete foundation through expansion screws.
The bolt looseness sensors 3 are multiple and are respectively arranged at flanges at the tops of the first section, the second section and the third section of the tower drum and directly sleeved on the high-strength bolts.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the utility model discloses the device can monitor pylon inclination, cabin vibration, bolted connection fastening state simultaneously, can effectual monitoring pylon running state.
(2) The utility model discloses the device is through surveying the bolted connection fastening state signal, can directly reflect the connection status between each section of pylon, provides the foundation for the monitoring of pylon security.
Drawings
FIG. 1 is a block diagram of the wind turbine tower operation state monitoring device of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to a wind turbine tower operating condition monitoring device, which comprises a vibration sensor 1 for measuring the radial and axial vibration signals at the top of the wind turbine tower so as to obtain the vibration information at the top of the wind turbine tower; the inclination angle sensor 2 is used for measuring and obtaining inclination angle signals of the top and the bottom of the wind turbine tower so as to obtain inclination information of the wind turbine tower; the bolt loosening sensor 3 is used for measuring and obtaining fastening state signals of the connecting bolts at the upper section, the middle section and the lower section of the wind turbine tower so as to obtain tightness state information of the connecting bolts; the vibration signal conditioning and acquisition module 4 is connected with the vibration sensor 1, is used for supplying power to the vibration sensor 1, amplifying and filtering signals of the vibration sensor and acquiring the signals, and the inclination angle signal conditioning and acquisition module 5 is connected with the inclination angle sensor 2, is used for supplying power to the inclination angle sensor 2, amplifying and filtering signals of the inclination angle sensor and acquiring the signals; the bolt loosening signal conditioning and collecting module 6 is connected with the bolt loosening sensor 3, supplies power to the bolt loosening sensor 3, amplifies and filters a bolt loosening sensor signal and collects the signal; the system is connected with a vibration signal conditioning and collecting module 4, an inclination angle signal conditioning and collecting module 5 and a bolt loosening signal conditioning and collecting module 6, temporarily stores signals processed by the three conditioning and collecting modules, performs amplitude and effective value solving pretreatment, and stores processed result data and original signal data into an RAM unit 7 of a storage unit 8; the storage unit 8 is connected with the RAM unit 7, and is used for storing the data transmitted by the RAM unit 7 on site, so that the storage capacity is strong, and the monitoring data can be stored for at least one week (the data loss caused by network disconnection in the subsequent transmission of the data is prevented); the data transmission module 9 is connected with the storage unit 8 and transmits the data in the storage unit 8 to the data receiving module 11 through a network protocol; the data receiving module 11 is connected with the data transmitting module 9 and receives the data transmitted by the data transmitting module 9; and the power supply module 10 is connected with the vibration signal conditioning and collecting module 4, the inclination angle signal conditioning and collecting module 5, the bolt loosening signal conditioning and collecting module 6, the RAM unit 7, the storage unit 8, the data transmission module 9 and the data receiving module 11 and supplies power to the data transmission module 9 and the data receiving module 11.
As the preferred embodiment of the present invention, the vibration sensor 1 is a plurality of, and is installed at the position of the near tower of the top of the wind turbine tower and the left lower beam of the gear box.
As a preferred embodiment of the present invention, the tilt sensor 2 includes a tower top tilt sensor and a tower bottom tilt sensor, the tower top tilt sensor is installed below the yaw flange at the top of the wind turbine tower without affecting the rotating position of the wind turbine cabin, the horizontal position is close to the tower lighting lamp, the tower bottom tilt sensor is located at the center of the foundation of the wind turbine and is fixed on the concrete foundation through expansion screws.
As the utility model discloses a preferred embodiment, bolt not hard up sensor 3 is a plurality of, installs respectively to be located tower section of thick bamboo one section, two-section and three-section tower section of thick bamboo top flange department, and direct cover is on high strength bolt.
The utility model discloses monitoring devices's application method: respectively installing the vibration sensors 1 at positions close to a tower frame of an engine room at the top of a wind turbine tower frame and at a cross beam at the left lower part of a gear box, and respectively measuring radial and axial vibration signals at the top of the wind turbine tower frame; the tilt sensor 2 comprises a tower top tilt sensor and a tower bottom tilt sensor, the tower top tilt sensor is arranged at a position which does not influence the rotation of a cabin of the wind turbine below a yaw flange at the top of a tower of the wind turbine and is at a position close to a lighting lamp of a tower barrel in the horizontal position, and the tower bottom tilt sensor is arranged at the center of a base of the wind turbine and is fixed on a concrete foundation through expansion screws. A plurality of bolt looseness sensors 3 are respectively installed at flanges at the tops of a first section, a second section and a third section of tower drum and directly sleeved on high-strength bolts.
The device and the prior art are utilized to realize data measurement, acquisition, preprocessing and transmission of each sensor.

Claims (4)

1. The utility model provides a wind turbine tower operating condition monitoring devices which characterized in that: the vibration sensor comprises a vibration sensor (1) for measuring radial and axial vibration signals of the top of a wind turbine tower so as to obtain vibration information of the top of the wind turbine tower; the inclination angle sensor (2) is used for measuring and obtaining inclination angle signals of the top and the bottom of the wind turbine tower so as to obtain inclination information of the wind turbine tower; the bolt loosening sensor (3) is used for measuring and obtaining fastening state signals of the connecting bolts of the upper section, the middle section and the lower section of the wind turbine tower so as to obtain tightness state information of the connecting bolts; the vibration signal conditioning and acquisition module (4) is connected with the vibration sensor (1) and used for supplying power to the vibration sensor (1), amplifying and filtering signals of the vibration sensor and acquiring the signals, and the inclination signal conditioning and acquisition module (5) is connected with the inclination sensor (2) and used for supplying power to the inclination sensor (2) and amplifying and filtering signals of the inclination sensor and acquiring the signals; the bolt loosening signal conditioning and collecting module (6) is connected with the bolt loosening sensor (3) and is used for supplying power to the bolt loosening sensor (3), amplifying and filtering signals of the bolt loosening sensor and collecting the signals; the system is connected with a vibration signal conditioning and collecting module (4), an inclination angle signal conditioning and collecting module (5) and a bolt loosening signal conditioning and collecting module (6), signals processed by the three conditioning and collecting modules are temporarily stored, amplitude and effective value solving pretreatment is carried out, and processed result data and original signal data are stored in an RAM unit (7) of a storage unit (8); the storage unit (8) is connected with the RAM unit (7) and used for storing the data transmitted by the RAM unit (7) on site, and the storage unit has strong storage capacity and can store monitoring data for at least one week; the data transmission module (9) is connected with the storage unit (8) and transmits the data in the storage unit (8) to the data receiving module (11) through a network protocol; the data receiving module (11) is connected with the data transmission module (9) and receives data transmitted by the data transmission module (9); and the power supply module (10) is connected with the vibration signal conditioning and collecting module (4), the inclination angle signal conditioning and collecting module (5), the bolt loosening signal conditioning and collecting module (6), the RAM unit (7), the storage unit (8), the data transmission module (9) and the data receiving module (11) and supplies power to the data transmission module.
2. The wind turbine tower operation state monitoring device according to claim 1, wherein: the vibration sensors (1) are multiple and are respectively installed at the position, close to the tower, of the top of the wind turbine tower, of the engine room rack and at the position of a cross beam at the lower left of the gear box.
3. The wind turbine tower operation state monitoring device according to claim 1, wherein: the tilt angle sensor (2) comprises a tower top tilt angle sensor and a tower bottom tilt angle sensor, the tower top tilt angle sensor is arranged at a position which does not influence the rotation of a cabin of the wind turbine below a yaw flange at the top of a tower of the wind turbine, the horizontal position is close to a tower lighting lamp, and the tower bottom tilt angle sensor is arranged at the center of a base of the wind turbine and fixed on a concrete foundation through expansion screws.
4. The wind turbine tower operation state monitoring device according to claim 1, wherein: the bolt looseness sensors (3) are multiple and are respectively arranged at flanges at the tops of the first section, the second section and the third section of the tower drum and directly sleeved on the high-strength bolts.
CN202020561265.XU 2020-04-16 2020-04-16 Wind turbine tower operating condition monitoring device Active CN211950752U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020561265.XU CN211950752U (en) 2020-04-16 2020-04-16 Wind turbine tower operating condition monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020561265.XU CN211950752U (en) 2020-04-16 2020-04-16 Wind turbine tower operating condition monitoring device

Publications (1)

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CN211950752U true CN211950752U (en) 2020-11-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112483332A (en) * 2020-12-07 2021-03-12 国家电投集团徐闻风力发电有限公司 Safety monitoring method, monitoring system and processing terminal for wind generating set tower
CN113339203A (en) * 2021-04-16 2021-09-03 大唐新疆清洁能源有限公司 Alarm system for looseness of bolts of wind turbine tower

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112483332A (en) * 2020-12-07 2021-03-12 国家电投集团徐闻风力发电有限公司 Safety monitoring method, monitoring system and processing terminal for wind generating set tower
CN113339203A (en) * 2021-04-16 2021-09-03 大唐新疆清洁能源有限公司 Alarm system for looseness of bolts of wind turbine tower
CN113339203B (en) * 2021-04-16 2023-01-10 大唐新疆清洁能源有限公司 Alarm system for looseness of bolts of wind turbine tower

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