CN216044187U - Wind turbine generator system basis fracture damage degradation monitoring system - Google Patents

Wind turbine generator system basis fracture damage degradation monitoring system Download PDF

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Publication number
CN216044187U
CN216044187U CN202121317063.1U CN202121317063U CN216044187U CN 216044187 U CN216044187 U CN 216044187U CN 202121317063 U CN202121317063 U CN 202121317063U CN 216044187 U CN216044187 U CN 216044187U
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strain
data
grating sensor
cracking
basic
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CN202121317063.1U
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罗涛
王森
李颖峰
韩斌
赵勇
李东辉
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Xian Thermal Power Research Institute Co Ltd
Huaneng Group Technology Innovation Center Co Ltd
Huaneng Renewables Corp Ltd
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Xian Thermal Power Research Institute Co Ltd
Huaneng Group Technology Innovation Center Co Ltd
Huaneng Renewables Corp Ltd
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    • 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
    • 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
    • Y02E10/728—Onshore wind turbines

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Abstract

The utility model provides a wind turbine generator foundation cracking damage degradation monitoring system which comprises a first data acquisition and processing unit, a second data acquisition and processing unit and a server, wherein the first data acquisition and processing unit is used for acquiring strain data of a tower and transmitting the acquired strain data to the server; the second data acquisition and processing unit is used for acquiring strain data of a basic crack and transmitting the acquired strain data to the server; the server is used for judging whether the received strain data of the tower drum and the strain data of the basic crack are in a linear relation or not and transmitting a judgment result to the alarm unit; the alarm unit is used for sending an alarm signal for continuous monitoring or an alarm signal for processing and maintaining the basic cracking according to the received judgment result; the system facilitates real-time knowledge of the underlying health condition and maintenance at the best time, avoiding the long-term costs required to repair low damage.

Description

Wind turbine generator system basis fracture damage degradation monitoring system
Technical Field
The utility model relates to the technical field of wind turbine generator foundation state monitoring, in particular to a wind turbine generator foundation cracking damage degradation monitoring system.
Background
The wind turbine generator base bears the self weight of each system component of the generator and also bears continuous alternating loads such as vibration, shaking and the like generated in the running process of the generator. Under the effect of long-term fatigue load, the basic concrete can gradually generate damage cracking and damage degradation, and further the safe operation of the unit is influenced. The existing wind turbine generator base state monitoring device generally uses a sensor system such as an acceleration sensor to monitor the dynamic response of a structure, does not monitor the base cracking in real time, and cannot identify the damage degradation problem of the base cracking, so that the damaged and repaired base of the cracking is necessarily monitored to ensure that the damaged and repaired base of the cracking is not damaged and degraded to an irreversible state.
Disclosure of Invention
The utility model aims to provide a wind turbine generator base cracking damage degradation monitoring system, which solves the defects in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a wind turbine generator foundation cracking damage degradation monitoring system which comprises a first data acquisition and processing unit, a second data acquisition and processing unit and a server, wherein the first data acquisition and processing unit is used for acquiring strain data of a tower and transmitting the acquired strain data to the server;
the second data acquisition and processing unit is used for acquiring strain data of a basic crack and transmitting the acquired strain data to the server;
the server is used for comparing the received tower drum strain data with the strain data of the basic crack and transmitting the comparison result to the alarm unit;
and the alarm unit is used for sending an alarm signal for continuous monitoring or an alarm signal for processing and maintaining the basic cracking according to the received comparison result.
Preferably, the tower tube strain monitoring module comprises a first fiber grating sensor, a second fiber grating sensor and a first data processing and analyzing device, wherein the first fiber grating sensor and the second fiber grating sensor are both arranged at the lower end of the inner cavity of the tower tube; the first fiber bragg grating sensor is used for acquiring first strain of the tower drum and transmitting the acquired first strain of the tower drum to the first data processing and analyzing device; the second fiber bragg grating sensor is used for acquiring second strain of the tower drum and transmitting the acquired second strain to the first data processing and analyzing device; the first data processing and analyzing device is used for acquiring the difference value between the first strain and the second strain and then transmitting the difference value to the server.
Preferably, the first fiber bragg grating sensor is arranged on the inner wall of the lower end of the tower barrel of the wind turbine generator in an adhesive manner; the second fiber bragg grating sensor is arranged on the inner wall of the lower end of the tower barrel of the wind turbine generator in a non-bonding mode.
Preferably, the second data acquisition and processing unit comprises a basic cracking degradation monitoring module and a second data processing and analyzing device, wherein the basic cracking degradation monitoring module is used for acquiring the strain and the temperature of a basic cracking part and transmitting the acquired strain and temperature to the second data processing and analyzing device; and the second data processing and analyzing device is used for subtracting the received temperature to obtain the strain data of the basic cracking position and transmitting the obtained strain data of the basic cracking position to the server.
Preferably, the basic cracking degradation monitoring module comprises a third fiber grating sensor, a fourth fiber grating sensor and a fifth fiber grating sensor, wherein the third fiber grating sensor, the fourth fiber grating sensor and the fifth fiber grating sensor are all arranged at the basic cracking position;
the third fiber bragg grating sensor and the fourth fiber bragg grating sensor are used for acquiring strain and temperature of a basic crack and transmitting the acquired strain and temperature to the second data processing and analyzing device;
and the fifth fiber grating sensor is used for collecting the temperature of the basic cracking part and transmitting the collected temperature to the second data processing and analyzing device.
Preferably, the third fiber grating sensor and the fourth fiber grating sensor are arranged at a crack of the unit foundation in an adhesive manner; the fifth fiber bragg grating sensor is arranged at the crack of the unit foundation in a non-bonding mode.
Preferably, the first data acquisition processing unit and the second data acquisition processing unit are both connected with the server through the ethernet.
Preferably, when the strain data of the tower barrel and the strain data of the basic cracking position are in a linear relation, the alarm unit sends a signal for continuously monitoring;
when the strain data of the tower barrel and the strain data of the base cracking position are in a nonlinear relation, the alarm unit sends out alarm signals for processing and maintaining the base cracking.
Compared with the prior art, the utility model has the beneficial effects that:
according to the wind turbine generator basic cracking damage degradation monitoring system, whether the basic cracking position needs to be further processed and repaired is judged according to the strain data of the basic cracking position and the strain data of the tower drum obtained through synchronous monitoring and whether the strain data and the strain data are in a linear relation or not; the system facilitates real-time knowledge of the underlying health condition and maintenance at the best time, avoiding the long-term costs required to repair low damage.
Furthermore, strain and temperature of a tower barrel or a basic crack are respectively obtained through the installation mode of the fiber bragg grating sensor, and then compensation processing is carried out on the temperature, so that the obtained strain data do not contain the influence of the temperature on the result, and the final judgment result is simpler and easier to realize.
Drawings
FIG. 1 is a schematic diagram of a system architecture to which the present invention relates;
FIG. 2 is a schematic structural diagram of a tower strain monitoring module;
FIG. 3 is a schematic structural diagram of a basic crack degradation monitoring module;
Detailed Description
The utility model aims to provide a wind turbine generator foundation cracking damage degradation monitoring system aiming at the defects of the prior art, which can evaluate the damage degradation degree of the foundation cracking according to synchronously monitored foundation cracking change data and tower drum strain data and determine whether the foundation needs to be further processed and repaired.
As shown in fig. 1, the wind turbine generator foundation cracking damage degradation monitoring system provided by the utility model comprises a tower tube strain monitoring module 1 for acquiring strain and temperature of a tower tube, wherein the tower tube strain monitoring module 1 is connected with a first data processing and analyzing device 2;
the basic cracking degradation monitoring module 3 is used for acquiring strain and temperature of a basic cracking part, and the basic cracking degradation monitoring module 3 is connected with a second data processing and analyzing device 4.
The first data processing and analyzing device 2 and the second data processing and analyzing device 4 are both connected to a server 5, and a remote operation access terminal 6 is further connected to the server 5.
The first data processing and analyzing device 2 and the second data processing and analyzing device 4 are both arranged inside the tower; connected with the server 5 through the Ethernet; this structure ensures stability of data transfer.
The first data processing and analyzing device 2 and the second data processing and analyzing device 4 each comprise an industrial computer, have a data receiving end, and can receive data of a sensor connected with the industrial computer in a wired or wireless mode.
A plurality of remote operation access terminals can be provided, which are a supplier remote operation access terminal 601, a maintenance personnel remote operation access terminal 602 and an air-power user remote operation access terminal 603.
The tower tube strain monitoring module 1 comprises a first fiber bragg grating sensor 101 and a second fiber bragg grating sensor 102, wherein the first fiber bragg grating sensor 101 is arranged on the inner wall of the lower end of a tower tube of the wind turbine generator in an adhesive manner; the second fiber bragg grating sensor 102 is arranged on the inner wall of the lower end of the tower of the wind turbine generator in a non-bonding mode.
The first fiber bragg grating sensor 101 is used for acquiring strain and temperature of a tower drum and transmitting the acquired strain and temperature to the first data processing and analyzing device 2; the second fiber grating sensor 102 is configured to collect a temperature of the tower, and transmit the collected temperature to the first data processing and analyzing device 2.
The first data processing and analyzing device 2 is configured to perform temperature compensation processing on the received strain and temperature, that is, subtract the two temperatures to cancel out the two temperatures to obtain strain data of the tower, and transmit the obtained strain data of the tower to the server 5.
The basic cracking degradation monitoring module 3 comprises a third fiber grating sensor 301, a fourth fiber grating sensor 302 and a fifth fiber grating sensor 303, wherein the third fiber grating sensor 301 and the fourth fiber grating sensor 302 are arranged at the cracking position of the unit foundation in a bonding manner; the fifth fiber grating sensor 303 is arranged at the crack of the unit foundation in a non-bonding manner.
The third fiber grating sensor 301 and the fourth fiber grating sensor 302 are both used for collecting the strain and the temperature of the basic crack, and transmitting the collected strain and temperature to the second data processing and analyzing device 4.
The fifth fiber grating sensor 303 is configured to collect a temperature of a base crack, and transmit the collected temperature to the second data processing and analyzing device 4.
An inclination angle is arranged between the installation directions of the third fiber grating sensor 301 and the fourth fiber grating sensor 302, and the inclination angle is 60 degrees.
The second data processing and analyzing device 4 is configured to perform temperature compensation processing on the received strain and temperature, that is, perform subtraction cancellation on the temperature to obtain strain data of a basic cracking position, and transmit the obtained strain data of the basic cracking position to the server 5.
And the server 5 is used for judging the relationship between the received tower cylinder strain data and the basic cracking position strain data and transmitting the judgment result to the alarm unit.
And the alarm unit is used for sending out a corresponding alarm signal according to the received judgment result.
When the strain data of the tower barrel and the strain data of the basic cracking position are in a linear relation, the alarm unit sends a signal for continuously monitoring;
when the strain data of the tower barrel and the strain data of the base cracking position are in a nonlinear relation, the alarm unit sends out alarm signals for processing and maintaining the base cracking.
When the wind power station works, the server 5 is arranged in a central control room of the wind power station; the first data processing and analyzing device 2 performs temperature compensation calculation through the temperature measured by the second fiber bragg grating sensor 102 on the basis of the strain measured by the first fiber bragg grating sensor 101, so as to obtain the strain data of the tower; the second data processing and analyzing device 4 performs temperature compensation calculation according to the temperature measured by the fifth fiber grating sensor 303 on the basis of the strain measured by the third fiber grating sensor 301 and the fourth fiber grating sensor 302, so as to obtain the strain data of the basic crack.
The server 5 can fit the strain data of the foundation cracking position and the strain data of the tower on line in real time, the processed result is transmitted to the memory to be stored, and when the synchronously measured strain data of the foundation cracking position and the strain data of the tower show nonlinear characteristics, the fact that the foundation cracking needs to be processed and maintained is indicated. In addition, the remote operation access terminal can view the corresponding monitoring information through the connection server 5.

Claims (8)

1. The wind turbine generator base cracking damage degradation monitoring system is characterized by comprising a first data acquisition and processing unit, a second data acquisition and processing unit and a server, wherein the first data acquisition and processing unit is used for acquiring strain data of a tower and transmitting the acquired strain data to the server (5);
the second data acquisition and processing unit is used for acquiring strain data of a basic crack and transmitting the acquired strain data to the server (5);
the server (5) is used for comparing the received strain data of the tower drum with the strain data of the basic crack and transmitting the comparison result to the alarm unit;
and the alarm unit is used for sending an alarm signal for continuous monitoring or an alarm signal for processing and maintaining the basic cracking according to the received comparison result.
2. The wind turbine generator system foundation cracking damage degradation monitoring system of claim 1, wherein the first data acquisition and processing unit comprises
The device comprises a first fiber bragg grating sensor (101), a second fiber bragg grating sensor (102) and a first data processing and analyzing device (2), wherein the first fiber bragg grating sensor (101) and the second fiber bragg grating sensor (102) are both arranged at the lower end of an inner cavity of a tower; the first fiber bragg grating sensor (101) is used for acquiring first strain of the tower and transmitting the acquired first strain of the tower to the first data processing and analyzing device (2); the second fiber bragg grating sensor (102) is used for acquiring second strain of the tower and transmitting the acquired second strain to the first data processing and analyzing device (2); the first data processing and analyzing device (2) is used for acquiring the difference value between the first strain and the second strain and then transmitting the difference value to the server (5).
3. The wind turbine generator system foundation cracking damage degradation monitoring system according to claim 2, wherein the first fiber bragg grating sensor (101) is arranged on the inner wall of the lower end of the tower barrel of the wind turbine generator system in an adhering manner; the second fiber bragg grating sensor (102) is arranged on the inner wall of the lower end of the tower barrel of the wind turbine generator in a non-bonding mode.
4. The wind turbine generator system basic cracking damage degradation monitoring system according to claim 1, wherein the second data acquisition and processing unit comprises a basic cracking degradation monitoring module (3) and a second data processing and analyzing device (4), wherein the basic cracking degradation monitoring module (3) is used for acquiring strain and temperature of a basic cracking part and transmitting the acquired strain and temperature to the second data processing and analyzing device (4); the second data processing and analyzing device (4) is used for subtracting the received temperatures to obtain strain data of the basic cracking position and transmitting the obtained strain data of the basic cracking position to the server (5).
5. The wind turbine generator system foundation cracking damage degradation monitoring system according to claim 4, wherein the foundation cracking degradation monitoring module (3) comprises a third fiber grating sensor (301), a fourth fiber grating sensor (302) and a fifth fiber grating sensor (303), wherein the third fiber grating sensor (301), the fourth fiber grating sensor (302) and the fifth fiber grating sensor (303) are all arranged at a foundation cracking position;
the third fiber bragg grating sensor (301) and the fourth fiber bragg grating sensor (302) are used for collecting the strain and the temperature of a basic crack and transmitting the collected strain and temperature to the second data processing and analyzing device (4);
the fifth fiber grating sensor (303) is used for collecting the temperature of the basic crack and transmitting the collected temperature to the second data processing and analyzing device (4).
6. The wind turbine generator base cracking damage degradation monitoring system according to claim 5, wherein the third fiber grating sensor (301) and the fourth fiber grating sensor (302) are arranged at a unit base cracking position in an adhesive manner; the fifth fiber bragg grating sensor (303) is arranged at the crack of the unit foundation in a non-bonding mode.
7. The wind turbine generator system foundation cracking damage degradation monitoring system according to claim 1, wherein the first data acquisition and processing unit and the second data acquisition and processing unit are connected with the server (5) through Ethernet.
8. The wind turbine generator system foundation cracking damage degradation monitoring system according to claim 1, wherein when the strain data of the tower and the strain data of the foundation cracking position are in a linear relationship, the alarm unit sends a signal for continuing monitoring;
when the strain data of the tower barrel and the strain data of the base cracking position are in a nonlinear relation, the alarm unit sends out alarm signals for processing and maintaining the base cracking.
CN202121317063.1U 2021-06-11 2021-06-11 Wind turbine generator system basis fracture damage degradation monitoring system Active CN216044187U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121317063.1U CN216044187U (en) 2021-06-11 2021-06-11 Wind turbine generator system basis fracture damage degradation monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121317063.1U CN216044187U (en) 2021-06-11 2021-06-11 Wind turbine generator system basis fracture damage degradation monitoring system

Publications (1)

Publication Number Publication Date
CN216044187U true CN216044187U (en) 2022-03-15

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ID=80615988

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121317063.1U Active CN216044187U (en) 2021-06-11 2021-06-11 Wind turbine generator system basis fracture damage degradation monitoring system

Country Status (1)

Country Link
CN (1) CN216044187U (en)

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