CN111122136A - Yaw system test device and method and yaw moment setting method - Google Patents
Yaw system test device and method and yaw moment setting method Download PDFInfo
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- CN111122136A CN111122136A CN201911317469.7A CN201911317469A CN111122136A CN 111122136 A CN111122136 A CN 111122136A CN 201911317469 A CN201911317469 A CN 201911317469A CN 111122136 A CN111122136 A CN 111122136A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
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Abstract
The invention discloses a yaw system test device and method, and a yaw moment setting method, wherein the device comprises: the device comprises a base, a loading brake disc, a driving unit, a control unit and a data acquisition unit; the top end of the base is connected with a yaw bearing inner ring and a yaw brake disc in a yaw system; the loading brake is connected with the driving unit, a loading brake disc is connected with an outer ring of a yaw bearing in the yaw system, and the loading brake is used for clamping the loading brake disc under the driving of the driving unit; the control unit is respectively connected with the data acquisition unit and the driving unit, and the data acquisition unit is used for detecting the operating data of the yaw system and sending the operating data to the control unit; and the control unit is used for controlling the operation of the driving unit. The yaw system testing device and method can correctly reflect the running condition of the wind turbine generator in the yaw process. The yaw moment setting method can be used for setting a proper yaw moment when the wind turbine generator is in initial operation.
Description
Technical Field
The invention relates to the technical field of wind power generation equipment, in particular to a yaw system testing device and method and a yaw moment setting method.
Background
With the increasing energy consumption and the increasing demand for environmental protection, the development of new renewable energy is more and more emphasized, wherein wind power generation is one of the fastest-developing new energy, and the design of a wind generating set becomes a vital technology in the wind energy industry. The yaw system is one of the indispensable component systems of wind generating set, and its main effect has two: one is mutually matched with a control system of the wind generating set, so that a wind wheel of the wind generating set is always in a upwind state, and wind energy is fully utilized. And the other is to provide necessary locking torque to ensure the safe operation of the wind generating set.
At present, after the wind turbine generator is assembled in a factory, in order to check the running condition of a yaw system, a yaw system test needs to be carried out. The yaw system testing device provided by the prior art drives the engine room to rotate through yaw driving under the condition of no external load, can only test the performance of the yaw system under the completely ideal condition, and cannot correctly reflect the running condition of the yaw system in the actual work of the wind turbine generator.
In addition, in the prior art, the yawing moment of the wind turbine generator is set to be a basic value according to actual experience, then the basic value is adjusted according to actual operation conditions during the operation of the wind turbine generator, and the yawing moment value is finally determined after the wind turbine generator stably operates for a period of time. Because the basic value of the yaw moment is determined according to experience, an effective scientific basis is lacked, and certain parts of the wind turbine generator may be adversely affected at the beginning of the operation of the wind turbine generator.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a yaw system testing device and method and a yaw moment setting method. The specific technical scheme is as follows:
in a first aspect, a yaw system testing apparatus is provided, the apparatus comprising: the device comprises a base, a loading brake disc, a driving unit, a control unit and a data acquisition unit; the top end of the base is connected with a yaw bearing inner ring and a yaw brake disc in a yaw system; the loading brake is connected with the driving unit, the loading brake disc is connected with an outer ring of a yaw bearing in a yaw system, and the loading brake is used for clamping the loading brake disc under the driving of the driving unit; the control unit is respectively connected with the data acquisition unit and the driving unit, and the data acquisition unit is used for detecting the operation data of the yaw system and sending the operation data to the control unit; and the control unit is used for controlling the operation of the driving unit and the wind power.
In one possible embodiment, the drive unit is a charging hydraulic station which supplies hydraulic oil to the charging brake for driving.
In one possible design, the control unit comprises an operation platform and a control cabinet, the operation platform is connected with the loading hydraulic station through the control cabinet, and the operation of the loading hydraulic station is controlled through the input command of the operation platform.
In one possible design, the data acquisition unit includes: and the vibration sensor, the rotating speed sensor and the noise sensor are respectively used for detecting vibration data, rotating speed data and noise data in the running process of the yaw system.
In a second aspect, there is provided a method of performing a yaw system test using any one of the yaw system test apparatuses described above, the method comprising:
the loading brake clamps the loading brake disc to simulate an external load;
driving a cabin of the wind turbine generator set and a loading brake to rotate by yaw;
the data acquisition unit collects and uploads the operation data of the yaw system.
In one possible design, the number of loading brakes and the pressure of each loading brake are adjusted to simulate different external loads.
In a third aspect, a method for setting yaw moment by using the yaw system testing apparatus described in any one of the above is provided, the method comprising:
different yaw moments are set on the yaw brake;
and when the wind turbine generator is in yaw, the data acquisition unit is used for collecting the operation data of the yaw system, and the optimal yaw moment of the wind turbine generator is determined according to the corresponding relation between the yaw moment and the operation data.
In one possible design, different yaw moments are set on the yaw brake according to different wind speed intervals, and the optimal yaw moment corresponding to the different wind speed intervals is obtained.
In one possible design, the method for determining the optimal yaw moment of the wind turbine generator by collecting the operation data of the yaw system through the data acquisition unit comprises the following steps:
the method comprises the steps of collecting vibration data through vibration sensing, collecting rotating speed data through a rotating speed sensor, collecting noise data through a noise sensor, analyzing the returned vibration data, rotating speed data and noise data, and determining the optimal yawing moment of the wind turbine generator system.
The technical scheme of the invention has the following main advantages:
according to the yaw system testing device and method, the external load is simulated through the loading brake and the loading brake disc, and the running condition of the wind turbine generator in the yaw process can be correctly reflected in the testing process. According to the yaw moment setting method, different yaw moments are set through the yaw brake, the operation data are obtained through the data collector, the optimal yaw moment is further obtained, the proper yaw moment can be given when the wind turbine generator is initially operated, and component abrasion and the like generated in the operation process of the wind turbine generator are avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a yaw system testing apparatus according to an embodiment of the present invention
Fig. 2 is a schematic structural diagram of a driving unit and a control unit in a yaw system testing apparatus according to an embodiment of the present invention.
Description of reference numerals:
1-base, 2-loading brake, 3-loading brake disc, 4-driving unit, 5-control unit, 51-operation table, 52-control cabinet, 6-data acquisition unit, 61-vibration sensor, 62-rotation speed sensor, 7-yaw brake disc and 8-yaw brake.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
In a first aspect, an embodiment of the present invention provides a yaw system testing apparatus, as shown in fig. 1, the apparatus includes: the device comprises a base 1, a loading brake 2, a loading brake disc 3, a driving unit 4, a control unit 5 and a data acquisition unit 6. The top end of the base 1 is connected with a yaw bearing inner ring and a yaw brake disc 7 in the yaw system. The loading brake 2 is connected with the driving unit 4, the loading brake disc 3 is connected with the outer ring of the yaw bearing in the yaw system, and the loading brake 2 is used for clamping the loading brake disc 3 under the driving of the driving unit 4. The control unit 5 is connected with the data acquisition unit 6 and the drive unit 4 respectively. And the data acquisition unit 6 is used for detecting the operation data of the yaw system and sending the operation data to the control unit 5. And the control unit 5 is used for controlling the operation of the driving unit 4 and the wind turbine generator set.
The working principle of the yaw testing device provided by the embodiment of the invention is explained as follows:
when in use, the base 1 is fixed on a ground beam in a factory. During the test, the wind turbine generator is arranged on the base 1, and the top end of the base 1 is connected with a yaw bearing inner ring and a yaw brake disc 7 in a yaw system to play a role in supporting and fixing. The loading brake 2 and the loading brake disc 3 cooperate to simulate an external load. The control unit 5 controls the drive unit 4 and, in turn, the external loads applied by the loading brake 2 and the loading brake disc 3. The control unit 5 is also connected with the data acquisition unit 6, and displays the acquired data to the tester. The process of using the yaw system test device to carry out the yaw system test is as follows: adjusting the number of the loading brakes 2 and the pressure of each loading brake 2 to simulate the external load of the yaw system, and providing yaw rotation moment by clamping the loading brake disc 3; the yaw drives the engine room of the wind turbine generator set and the loading brake 2 to rotate; the data acquisition unit 6 collects and uploads the operational data of the yaw system. The yaw moment test can be further carried out through the yaw system test device, and the process is as follows: different yaw moments are set on the yaw brake 8; when the wind turbine generator is in yaw, the data acquisition unit 6 is used for collecting the operation data of a yaw system, and the optimal yaw moment of the wind turbine generator is determined according to the corresponding relation between the yaw moment and the operation data.
Therefore, the yaw system test device provided by the embodiment of the invention simulates the external load through the loading brake 2 and the loading brake disc 3, and the running condition of the wind turbine generator in the yaw process can be correctly reflected in the test process. Different yaw moments are set through the yaw brake 8, the running data are obtained through the data collector, the optimal yaw moment is further obtained, the proper yaw moment can be given when the wind turbine generator is initially operated, and component abrasion and the like generated in the running process of the wind turbine generator are avoided.
When the base 1 is fixed on the in-plant ground beam, the bottom of the base 1 and the in-plant ground beam can be connected through bolts. The top end of the base 1 can be connected with a yaw bearing inner ring and a yaw brake disc 7 in a yaw system through bolts, and the loading brake disc 3 can be connected with a yaw bearing outer ring through bolts
In the embodiment of the present invention, the loading brake disc 3 may be hydraulically driven, that is, the driving unit 4 may be a loading hydraulic station which supplies hydraulic oil to the loading brake 2 for driving. So set up, through the flow of loading hydraulic pressure station output pressure oil to the pressure of loading brake 2 control, simple structure, maneuverability is strong.
Illustratively, the control unit 5 comprises an operation platform 51 and a control cabinet 52, the operation platform 51 is connected with the loading hydraulic station through the control cabinet 52, and the operation of the loading hydraulic station is controlled by inputting instructions through the operation platform 51. So set up, be convenient for the staff through operation panel 51 input instruction set up different external load and yaw moment. Further, a display module may be disposed on the console 51 for displaying the operation data collected by the data collection unit 6.
Optionally, in order to fully grasp the operation condition of the yaw system, the data acquisition unit 6 includes: and the vibration sensor 61, the rotating speed sensor 62 and the noise sensor are respectively used for detecting vibration data, rotating speed data and noise data in the operation process of the yaw system. By the arrangement, the running condition of the yaw system can be conveniently and comprehensively known during the test of the yaw system, and the test result is comprehensive and objective. And when a yawing moment test is carried out, the optimal yawing moment which enables the whole running condition to be optimal is obtained by comprehensively analyzing the data change conditions of vibration, rotating speed and noise.
In a second aspect, an embodiment of the present invention provides a method for performing a yaw system test by using the yaw system test apparatus described in any one of the above, the method including:
the loading brake 2 clamps the loading brake disc 3 to simulate an external load;
the yaw drives the engine room of the wind turbine generator set and the loading brake 2 to rotate;
the data acquisition unit 6 collects and uploads the operational data of the yaw system.
According to the yaw system test method provided by the embodiment of the invention, the external load is simulated through the loading brake 2 and the loading brake disc 3, and the running condition of the wind turbine generator in the yaw process can be correctly reflected in the test process.
Further, when the external load is simulated, the number of the loading brakes 2 and the pressure of each loading brake 2 are adjusted, so that the pressures applied to the loading brake disc 3 by the loading brakes 2 are different, and the magnitude of the external load is further adjusted. By the arrangement, yaw system tests under different external loads can be performed, and the running conditions of the yaw process of the wind turbine generator under different external loads are obtained.
The yaw drive is a drive structure of the wind turbine generator and can comprise a yaw motor, a yaw speed reducer and the like, and the yaw motor is electrified in practice to drive the wind turbine generator to rotate. The embodiment of the invention is not described in detail.
In a third aspect, an embodiment of the present invention provides a method for setting a yaw moment by using the yaw system testing apparatus of any one of the foregoing methods, where the method includes:
different yaw moments are set on the yaw brake 8;
when the wind turbine generator is in yaw, the data acquisition unit 6 is used for collecting operation data of a yaw system, and the optimal yaw moment of the wind turbine generator is determined according to the corresponding relation between the yaw moment and the operation data.
According to the yaw moment setting method provided by the embodiment of the invention, different yaw moments are set through the yaw brake 8, the operation data is obtained through the data acquisition unit, and then the optimal yaw moment is obtained, so that the proper yaw moment can be given when the wind turbine generator is initially operated, and the component abrasion and the like generated in the operation process of the wind turbine generator are avoided.
Specifically, the yaw moment setting method provided by the embodiment of the present invention further includes: according to different wind speed intervals, different yaw moments are set on the yaw brake 8, and the optimal yaw moment corresponding to the different wind speed intervals is obtained. The following is a detailed description:
first, the wind speed is divided into different sections, for example, the number of the divided sections may be 2, 3, 4, etc. Taking 2 wind speed intervals as an example, after the wind speed intervals are divided, calculating by theoretical load to obtain maximum yaw external loads in the two wind speed intervals, which are respectively marked as a and b. And converting the calculated yaw maximum external loads a and b into corresponding yaw moments. Based on the theoretical values calculated by a and b, the intervals for setting the yaw moment during the test are respectively as follows: (a-h, a + h), (b-h, b + h). After a plurality of tests, the optimal yawing moment A corresponding to the first wind speed interval and the optimal yawing moment B corresponding to the second wind speed interval are obtained.
Wherein, based on data acquisition unit 6 includes vibration sensor 61, the sensor of moving speed and noise sensor (not shown in the figure), collect the operating data of driftage system through data acquisition unit 6, confirm the best yaw moment of wind turbine generator system, include:
vibration data are collected through vibration sensing, rotating speed data are collected through the rotating speed sensor 62, noise data are collected through the noise sensor, the returned vibration data, rotating speed data and noise data are analyzed, and the optimal yaw moment of the wind turbine generator is determined. According to the arrangement, the optimal yawing moment which enables the overall running condition to be optimal is obtained by comprehensively analyzing the variation conditions of the vibration data, the rotating speed data and the noise data.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A yaw system testing apparatus, the apparatus comprising: the device comprises a base, a loading brake disc, a driving unit, a control unit and a data acquisition unit;
the top end of the base is connected with a yaw bearing inner ring and a yaw brake disc in a yaw system;
the loading brake is connected with the driving unit, the loading brake disc is connected with an outer ring of a yaw bearing in a yaw system, and the loading brake is used for clamping the loading brake disc under the driving of the driving unit;
the control unit is respectively connected with the data acquisition unit and the driving unit,
the data acquisition unit is used for detecting the operating data of the yaw system and sending the operating data to the control unit;
and the control unit is used for controlling the operation of the driving unit and the wind generating set.
2. The yaw system testing apparatus of claim 1, wherein the drive unit is a loading hydraulic station that provides hydraulic oil to the loading brake for driving.
3. The yaw system testing apparatus of claim 2, wherein the control unit includes an operation console and a control cabinet, the operation console is connected to the loading hydraulic station through the control cabinet, and commands are input through the operation console to control operation of the loading hydraulic station.
4. The yaw system testing apparatus of claim 1, wherein the data acquisition unit comprises: and the vibration sensor, the rotating speed sensor and the noise sensor are respectively used for detecting vibration data, rotating speed data and noise data in the running process of the yaw system.
5. A method of conducting a yaw system test using the yaw system test apparatus of any one of claims 1 to 4, the method comprising:
the loading brake clamps the loading brake disc to simulate an external load;
driving a cabin of the wind turbine generator set and a loading brake to rotate by yaw;
the data acquisition unit collects and uploads the operation data of the yaw system.
6. A yaw system testing method according to claim 5, characterized in that the method comprises: the number of loading brakes and the pressure of each loading brake are adjusted to simulate different external loads.
7. A method for performing a yaw moment test using the yaw system testing apparatus of any one of claims 1 to 4, the method comprising:
different yaw moments are set on the yaw brake;
and when the wind turbine generator is in yaw, the data acquisition unit is used for collecting the operation data of the yaw system, and the optimal yaw moment of the wind turbine generator is determined according to the corresponding relation between the yaw moment and the operation data.
8. The yaw moment setting method according to claim 7, wherein different yaw moments are set on the yaw brake according to different wind speed intervals, and optimal yaw moments corresponding to the different wind speed intervals are obtained.
9. The yaw moment setting method according to claim 7, wherein the step of determining the optimal yaw moment of the wind turbine generator by collecting the operation data of the yaw system through a data acquisition unit comprises the following steps:
the method comprises the steps of collecting vibration data through vibration sensing, collecting rotating speed data through a rotating speed sensor, collecting noise data through a noise sensor, analyzing the returned vibration data, rotating speed data and noise data, and determining the optimal yawing moment of the wind turbine generator system.
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| US20110057451A1 (en) * | 2009-09-30 | 2011-03-10 | Matthias Alfons Volmer | Yaw bearing assembly for use with a wind turbine and a method for braking using the same |
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