CN209745564U - Load testing device for wind turbine generator - Google Patents
Load testing device for wind turbine generator Download PDFInfo
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- CN209745564U CN209745564U CN201822232978.7U CN201822232978U CN209745564U CN 209745564 U CN209745564 U CN 209745564U CN 201822232978 U CN201822232978 U CN 201822232978U CN 209745564 U CN209745564 U CN 209745564U
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Abstract
The utility model discloses a wind turbine generator system load test device, a load for testing the wind turbine generator system that is surveyed, including installing the blade load distribution test system on being located the blade root's of being surveyed the wind turbine generator system baffle, install the wheel hub load test system in being surveyed the wheel hub of wind turbine generator system, install the top of the tower load test system at being surveyed the tower section of thick bamboo top of wind turbine generator system, install the tower section of thick bamboo middle section load test system at being surveyed the tower section of thick bamboo middle part of wind turbine generator system, install the load test system at the bottom of being surveyed the tower section of thick bamboo bottom of wind turbine generator system, install the meteorological data test system on the tower bottom platform of anemometer tower, this a plurality of systems pass through data communication module and set up the industrial control and the display system connection in being survey. The utility model discloses can realize the all-round test of each part load of wind turbine generator system, the test result is accurate, is applicable to the wind turbine generator system load measurement that blade wind wheel diameter is big, capacious.
Description
Technical Field
The utility model relates to a load test system especially relates to a wind turbine generator system load test device.
Background
wind turbines are often operated in areas with high wind speed and high turbulence intensity, and the operation safety of the wind turbines gradually draws attention of people.
In recent years, with the continuous increase of installed capacity of wind power, safety accidents of structural load of a wind turbine generator set, such as blade breakage, tower buckling and the like, occur frequently. In order to test and monitor the load of each main structural component of the wind turbine, a wind turbine load testing device needs to be applied.
However, as the capacity of the wind turbine generator is increased continuously, the structural size of the wind turbine generator is also increased gradually, the diameter of a blade rotor is increased from 56 meters to 115 meters of the current main stream, and the height of a tower is increased from 60 meters of the main stream to 90 meters of the current main stream. Due to the change of the structural size of the wind turbine generator, the original test system cannot meet the test requirement.
In view of this, the utility model discloses load testing device to wind turbine generator system improves.
SUMMERY OF THE UTILITY MODEL
In order to solve the weak point that above-mentioned technique exists, the utility model provides a wind turbine generator system load testing arrangement for realize the wind turbine generator system's that blade wind wheel diameter is big, capacious load measurement.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a wind turbine generator system load testing arrangement for the load of test wind turbine generator system, including setting up industrial control and display system of a tower section of thick bamboo bottom of being surveyed wind turbine generator system, its characterized in that still includes:
the blade load distribution testing system is connected with the industrial control and display system through a data communication module, is arranged on a baffle plate positioned at the root part of the blade of the tested wind turbine generator set and is used for measuring the load on the blade of the tested wind turbine generator set;
The wheel hub load testing system is connected with the industrial control and display system through a data communication module, is arranged in a wheel hub of the tested wind turbine generator set and is used for measuring the load of the wheel hub of the tested wind turbine generator set;
the tower top load testing system is connected with the industrial control and display system through a data communication module, is installed at the top of the tower of the tested wind turbine generator system, and is used for measuring the load at the top of the tower of the tested wind turbine generator system;
The tower drum middle section load testing system is connected with the industrial control and display system through a data communication module, is installed in the middle of the tower drum of the tested wind turbine generator system, and is used for measuring the load in the middle of the tower drum of the tested wind turbine generator system;
the tower bottom load testing system is connected with the industrial control and display system through a data communication module, is installed at the bottom of the tower of the tested wind turbine generator system, and is used for measuring the load at the bottom of the tower of the tested wind turbine generator system;
And the meteorological data testing system is connected with the industrial control and display system through a data communication module, is arranged on a tower bottom platform of the anemometer tower positioned at the upwind direction side of the tested wind turbine generator system, and is used for measuring the wind speed of the tested wind turbine generator system.
Preferably, the blade load distribution test system comprises a plurality of groups of strain gauges, the plurality of groups of strain gauges are uniformly adhered to the blade of the tested wind turbine generator system, the distance between the strain gauges and the root of the blade is 2L/3-L-3 m, and L is the length of the blade of the tested wind turbine generator system.
Preferably, the hub load testing system comprises a plurality of groups of strain gauges, and the plurality of groups of strain gauges are uniformly adhered to the blade root and the surface of the main shaft of the tested wind turbine generator system.
Preferably, the tower top load testing system comprises a plurality of groups of strain gauges, the plurality of groups of strain gauges are uniformly adhered to the tower top of the tower barrel, the distance between the plurality of groups of strain gauges and the ground is H-1 m, and H is the height between the center of the hub of the tested wind turbine generator set and the ground.
Preferably, the tower drum middle section load testing system comprises a plurality of groups of strain gauges, the plurality of groups of strain gauges are uniformly adhered to the middle of the tower drum, the distance between the plurality of groups of strain gauges and the ground is 2H/3-3H/4 m, wherein H is the height between the center of the hub of the tested wind turbine generator and the ground.
Preferably, the tower bottom load testing system comprises a plurality of groups of strain gauges, the plurality of groups of strain gauges are uniformly adhered to the bottom of the tower barrel, and the distance between the plurality of groups of strain gauges and the ground is H/10-H/8 m, wherein H is the height between the center of the hub of the tested wind turbine generator set and the ground.
Preferably, the data communication module is at least one of a CAN bus communication protocol, an optical fiber communication protocol and an internet access communication protocol.
Preferably, the blade load distribution test system, the hub load test system, the tower top load test system, the tower middle section load test system and the tower bottom load test system are sequentially connected by a CAN bus communication protocol, and the meteorological data test system is connected with the tower bottom load test system by optical fiber communication.
Preferably, the plurality of groups of strain gauges of the blade load distribution test system are arranged to form a Wheatstone bridge.
Preferably, the multiple groups of strain gauges of the wheel hub load testing system are arranged to form a Wheatstone bridge.
adopt wind turbine generator system load testing arrangement can realize the all-round test of each part load of wind turbine generator system, can realize the measurement of top of the tower load, the measurement of tower section of thick bamboo middle section load, the measurement of tower bottom load, the measurement of blade middle section load distribution, the load measurement of wind turbine generator system wheel hub department specifically, increases the test point of fan unit, has enlarged test range, and then ensures that the test result is accurate.
In addition, each system is connected through a data communication module, specifically at least one of a CAN bus communication protocol, an optical fiber communication protocol and a network port communication protocol, smooth communication connection among the systems CAN be guaranteed, the problem that communication between the anemometer tower and the tested wind turbine generator is unstable is effectively solved, the system communication anti-interference capacity is high, and the method is particularly suitable for measuring the load of the wind turbine generator with large diameter and large capacity of the blade wind wheel.
drawings
Fig. 1 is an overall schematic diagram of a wind turbine load testing device according to the present invention;
Fig. 2 is a schematic block diagram of the wind turbine generator load testing device of the present invention.
Detailed Description
the following describes the wind turbine load testing device in further detail with reference to the accompanying drawings.
the wind turbine generator load testing device is mainly used for detecting load conditions of a tested wind turbine generator 10 and a corresponding wind measuring tower 20. As shown in fig. 1, a blade load distribution testing system 100, a hub load testing system 200, a tower top load testing system 300, a tower middle section load testing system 400, a tower bottom load testing system 500 and an industrial control and display system 700 are installed on a tested wind turbine generator system 10, and the five testing systems are all connected with the industrial control and display system 700 through data communication modules; the wind measuring tower 20 is installed on the upwind side of the tested wind generating set 10, the meteorological data testing system 600 is installed on the tower bottom platform of the wind measuring tower 20, and the meteorological data testing system 600 is connected with the industrial control and display system 700 through a data communication module. The data communication module is at least one of a CAN bus communication protocol, an optical fiber communication protocol and an internet access communication protocol.
Specifically, the blade load distribution test system 100 is used to measure the load on the blades 11 of the wind turbine generator system 10 under test, and is mounted on a baffle located at the root of the blades of the wind turbine generator system 10 under test. The blade load distribution testing system 100 comprises a plurality of groups of strain gauges, the plurality of groups of strain gauges are uniformly adhered to the blades 11 of the tested wind turbine generator system 10, the distance between each strain gauge and the root of each blade is 2L/3-L-3 m, and L is the length of each blade of the tested wind turbine generator system 10. And a plurality of groups of strain foil groups are built into a Wheatstone bridge, and the measurement of the load distribution of the blade is realized by detecting the bending moment and the torque of each position point.
The hub load testing system 200 is used to measure the load at the hub of the tested wind turbine generator system, and in this embodiment, the blade load distribution testing system 100 is connected to the hub load testing system 200 by using a CAN bus communication protocol. The hub load testing system 200 is installed in the hub of the tested wind turbine generator system 10, and includes a plurality of sets of strain gauges uniformly adhered to the root of the blade and the surface of the main shaft of the tested wind turbine generator system 10, and the plurality of sets of strain gauges are built into a wheatstone bridge. The hub load test system 200 can realize the measurement of the blade root shimmy bending moment, the flapping bending moment, the main shaft bending moment and the main shaft torque.
The tower top load testing system 300 is configured to measure a load at the top of the tower of the tested wind turbine generator system 10, in this embodiment, the hub load testing system 200 is connected to the tower top load testing system 300 by using a CAN bus communication protocol. The tower top load test system 300 is installed on the top of the tower of the tested wind turbine generator system 10, and includes multiple groups of strain gauges, the multiple groups of strain gauges are uniformly adhered to the tower top of the tower 12 of the tested wind turbine generator system 10, and the distance between the multiple groups of strain gauges and the ground is H-1 meter. Specifically, the tower top load testing system 300 is mainly used for testing the tower top bending moment and torque. The tower top load test system 300 may introduce wind turbine generator control system variables, such as wind turbine generator speed, nacelle wind direction, and other signals, for assisting in measuring wind turbine generator loads.
The tower middle section load testing system 400 is configured to measure a load at the middle of the tower of the wind turbine generator set 10 to be tested, and in this embodiment, the tower top load testing system 300 is connected to the tower middle section load testing system 400 by using a CAN bus communication protocol. The tower middle section load testing system 400 is installed in the middle of the tower of the tested wind turbine generator system 10 and comprises a plurality of groups of strain gauges, the plurality of groups of strain gauges are uniformly adhered to the middle of the tower 12, and the distance between the plurality of groups of strain gauges and the ground is 2H/3-3H/4 m. Specifically, the tower midsection load testing system 400 is mainly used for measuring tower midsection bending moment and torque.
The tower bottom load testing system 500 is used for measuring the load at the bottom of the tower of the tested wind turbine generator system 10, and in this embodiment, the tower middle section load testing system 400 is connected to the tower bottom load testing system 500 by using a CAN bus communication protocol. In this embodiment, the tower bottom load testing system 500 is installed at the bottom of the tower of the tested wind turbine generator system 10, and includes multiple sets of strain gauges uniformly adhered to the bottom of the tower 12, and the distance between the strain gauges and the ground is H/10 to H/8 meters. Specifically, the tower bottom load testing system 500 is primarily used to measure tower bottom bending moment and torque.
The industrial control and display system 700 is disposed at the bottom of the tower of the tested wind turbine generator system 10, and in this embodiment, the tower bottom load testing system 500 is connected to the industrial control and display system 700 by using a CAN bus communication protocol. The industrial control and display system 700 is an industrial personal computer and a human-computer interaction interface in the prior art, and is used for implementing industrial control and human-computer interaction, and the specific structural composition of this part is the prior art, and belongs to common general knowledge to those skilled in the art, so details are not described herein.
the meteorological data testing system 600 is used for measuring the wind speed of the tested wind turbine 10, and in this embodiment, the meteorological data testing system 600 is connected to the tower bottom load testing system 500 through optical fiber communication. In this embodiment, the meteorological data testing system 600 is installed on the tower bottom platform of the wind measuring tower 20 located on the upwind side of the tested wind turbine generator system 10. The meteorological data testing system 600 is conventional, and therefore not described in detail herein.
In the above description, the blade load distribution testing system 100, the hub load testing system 200, the tower top load testing system 300, the tower middle section load testing system 400, and the tower bottom load testing system 500 all include multiple sets of strain gauges, each strain gauge is an element for measuring strain formed by a sensitive grid, and when a conductor or a semiconductor material forming the strain gauge is mechanically deformed under the action of an external force, the resistance value of the conductor or the semiconductor material is correspondingly changed, the changed resistance value is transmitted to the industrial control and display system 700, and the data are analyzed by the industrial control and display system 700 to finally obtain the load condition of the wind turbine generator.
By adopting the wind turbine generator load testing device, the all-dimensional test of the load of each component of the tested wind turbine generator 10 can be realized, specifically, the measurement of the tower top load, the measurement of the tower middle section load, the measurement of the tower bottom load, the measurement of the blade middle section load distribution and the load measurement of the hub of the wind turbine generator can be realized, the number of test points on the tested wind turbine generator is increased, the test range is enlarged, and the test result is accurate.
In addition, each system is connected through a data communication module, specifically at least one of a CAN bus communication protocol, an optical fiber communication protocol and a network port communication protocol, smooth communication connection among the systems CAN be guaranteed, the problem that communication between the anemometer tower 20 and the tested wind turbine generator 10 is unstable is effectively solved, the system communication anti-interference capacity is strong, and the method is particularly suitable for measuring loads of wind turbine generators with large blade wind wheel diameters and large capacity.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a wind turbine generator system load testing arrangement for the load of test wind turbine generator system (10), including setting up industrial control and display system (700) in the tower section of thick bamboo bottom of test wind turbine generator system (10), its characterized in that still includes:
The blade load distribution testing system (100) is connected with the industrial control and display system (700) through a data communication module, is arranged on a baffle plate positioned at the root part of the blade of the tested wind turbine generator set (10), and is used for measuring the bending moment and the torque of the blade (11) of the tested wind turbine generator set (10);
The hub load testing system (200) is connected with the industrial control and display system (700) through a data communication module, is installed in a hub of the tested wind turbine generator set (10), and is used for measuring the root shimmy bending moment, the flapping bending moment, the main shaft bending moment and the main shaft torque of the blade (11);
The tower top load testing system (300) is connected with the industrial control and display system (700) through a data communication module, is installed at the top of the tower of the tested wind turbine generator set (10), and is used for measuring the bending moment and the torque at the top of the tower of the tested wind turbine generator set (10);
The tower drum middle section load testing system (400) is connected with the industrial control and display system (700) through a data communication module, is installed in the middle of a tower drum of the tested wind turbine generator set (10), and is used for measuring the tower drum middle bending moment and the torque of the tested wind turbine generator set (10);
The tower bottom load testing system (500) is connected with the industrial control and display system (700) through a data communication module, is installed at the bottom of the tower of the tested wind turbine generator set (10), and is used for measuring the bending moment and the torque of the bottom of the tower of the tested wind turbine generator set;
and the meteorological data testing system (600) is connected with the industrial control and display system (700) through a data communication module, is arranged on a tower bottom platform of a wind measuring tower (20) positioned at the upwind side of the tested wind generating set (10), and is used for measuring the wind speed of the tested wind generating set (10).
2. the wind turbine generator load testing device according to claim 1, wherein the blade load distribution testing system comprises a plurality of groups of strain gauges, the groups of strain gauges are uniformly adhered to the blades (11) of the tested wind turbine generator (10), the distance between the strain gauges and the root of each blade is 2L/3-L-3 m, and L is the length of each blade of the tested wind turbine generator (10).
3. The wind turbine generator load testing device according to claim 1, wherein the hub load testing system (200) comprises a plurality of groups of strain gauges, and the groups of strain gauges are uniformly adhered to the root of the blade and the surface of the main shaft of the tested wind turbine generator (10).
4. The wind turbine generator load testing device according to claim 1, wherein the tower top load testing system (300) comprises a plurality of groups of strain gauges, the groups of strain gauges are uniformly adhered to the tower top of the tower cylinder (12) and are at a distance of H-1 m from the ground, and H is the height from the center of the hub of the tested wind turbine generator (10) to the ground.
5. The wind turbine generator load testing device according to claim 1, wherein the tower middle section load testing system (400) comprises a plurality of groups of strain gauges, the groups of strain gauges are uniformly adhered to the middle of the tower and are spaced from the ground by 2H/3-3H/4 m, wherein H is the height from the center of the hub of the tested wind turbine generator (10) to the ground.
6. The wind turbine generator load testing device according to claim 1, wherein the tower bottom load testing system (500) comprises a plurality of groups of strain gauges, the groups of strain gauges are uniformly adhered to the bottom of the tower and are spaced from the ground by a distance of H/10-H/8 m, wherein H is the height from the center of the hub of the tested wind turbine generator (10) to the ground.
7. The wind turbine generator load testing device according to claim 1, wherein the data communication module is at least one of a CAN bus communication protocol, an optical fiber communication protocol and a network port communication protocol.
8. the wind turbine generator load testing device according to claim 7, wherein the blade load distribution testing system (100), the hub load testing system (200), the tower top load testing system (300), the tower middle section load testing system (400), and the tower bottom load testing system (500) are sequentially connected by a CAN bus communication protocol, and the meteorological data testing system (600) is connected with the tower bottom load testing system (500) through optical fiber communication.
9. The wind turbine generator load testing device according to claim 2, wherein a plurality of groups of strain gauges of the blade load distribution testing system (100) are arranged and constructed to form a Wheatstone bridge.
10. The wind turbine generator load testing device according to claim 3, wherein a plurality of groups of strain gauges of the hub load testing system (200) are arranged and constructed to form a Wheatstone bridge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822232978.7U CN209745564U (en) | 2018-12-28 | 2018-12-28 | Load testing device for wind turbine generator |
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| CN201822232978.7U CN209745564U (en) | 2018-12-28 | 2018-12-28 | Load testing device for wind turbine generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458551A (en) * | 2022-04-12 | 2022-05-10 | 华电电力科学研究院有限公司 | Load data acquisition device of wind driven generator and wind driven generator system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458551A (en) * | 2022-04-12 | 2022-05-10 | 华电电力科学研究院有限公司 | Load data acquisition device of wind driven generator and wind driven generator system |
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Effective date of registration: 20200415 Address after: Room 1308-a, floor 13, innovation building B, innovation park, hi tech Industrial Development Zone, Chengguan District, Lanzhou City, Gansu Province Patentee after: Lanzhou shangwenhuitong Energy Technology Co., Ltd Address before: Room 210, building 3, yard 2, Zhenxing Road, Chengnan street, Changping District, Beijing 102200 Patentee before: Beijing shangwenhuitong Energy Technology Co., Ltd |