CN118066075A - Online monitoring method and system for electromagnetic band-type brake of yaw system of wind turbine generator - Google Patents
Online monitoring method and system for electromagnetic band-type brake of yaw system of wind turbine generator Download PDFInfo
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- CN118066075A CN118066075A CN202410079396.7A CN202410079396A CN118066075A CN 118066075 A CN118066075 A CN 118066075A CN 202410079396 A CN202410079396 A CN 202410079396A CN 118066075 A CN118066075 A CN 118066075A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses an online monitoring method for an electromagnetic band-type brake of a yaw system of a wind turbine, which comprises the following steps: s1, collecting current data output by an electromagnetic band-type brake in an automatic yaw operation process of a wind turbine; s2, presetting an acquisition module in a control cabinet of a wind turbine generator cabin, and transmitting acquired current data to computing equipment of a wind turbine generator tower foundation through the acquisition module; s3, screening and analyzing current data in real time through an internal program of the computing equipment, calculating the deviation degree of the current of the electromagnetic band-type brake, judging the running state of the electromagnetic band-type brake of the yaw system of the wind turbine generator according to the deviation degree, and feeding back the running state to the main control of the wind turbine generator; the invention can monitor the health state of the yaw system on line in real time, ensure the safe and stable operation of the unit, discover the failure condition of the action of the electromagnetic band-type brake in advance, effectively reduce the replacement and maintenance cost caused by the damage of yaw sub-components, and avoid the long stop risk caused by the maintenance process of the unit.
Description
Technical Field
The invention relates to the technical field of wind turbine generator electromagnetic band-type brake monitoring, in particular to an on-line monitoring method and system for an electromagnetic band-type brake of a yaw system of a wind turbine generator.
Background
Along with the continuous increase of the single-machine capacity of the wind generating set, the load born by each large part of the set is continuously increased, so that the safe and stable operation of the large parts of the set is particularly important. The yaw system is an important component of the wind generating set, and drives the yaw gear through the yaw motor so that the nacelle accurately aligns wind to acquire maximum wind energy. The electromagnetic band-type brake 001 is connected with a motor driving shaft and used for braking and controlling an auxiliary yaw system through electromagnetic action band-type brake braking, a yaw motor is connected with yaw driving teeth 003 through a reduction gear box 002, the yaw driving teeth 003 rotate to drive yaw bearing gears 004 to rotate, the assembly structure of the yaw system is shown in a schematic diagram in FIG. 1, 005 is a yaw brake disc, and 006 is a yaw brake clamp. When the electromagnetic band-type brake fails, the motor rotating shaft runs with load, so that the electromagnetic band-type brake is worn, and even the situation of yaw tooth breakage is further likely to be caused by drive damage due to overlarge load.
Because the electromagnetic band-type brake is controlled by the same way and the same start and stop, all the electromagnetic band-type brakes control the start and stop actions through a group of contactors, the electromagnetic band-type brake can only be examined in a manual periodic tower climbing inspection mode at present, and an effective scheme is not available for monitoring the failure of the action of the individual electromagnetic band-type brake.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an on-line monitoring method and an on-line monitoring system for an electromagnetic band-type brake of a yaw system of a wind turbine generator, and the current data characteristics of an output loop of the electromagnetic band-type brake are collected in real time to judge whether the current electromagnetic band-type brake system has failure.
The aim of the invention is achieved by the following technical scheme: an on-line monitoring method for an electromagnetic band-type brake of a yaw system of a wind turbine generator comprises the following steps:
s1, collecting current data output by an electromagnetic band-type brake in an automatic yaw operation process of a wind turbine;
S2, presetting an acquisition module in a control cabinet of a wind turbine generator cabin, and transmitting acquired current data to computing equipment of a wind turbine generator tower foundation through the acquisition module;
and S3, screening and analyzing the current data in real time through an internal program of the computing equipment, calculating the deviation degree of the current of the electromagnetic band-type brake, judging the running state of the electromagnetic band-type brake of the yaw system of the wind turbine generator according to the deviation degree, and feeding back the running state to the main control of the wind turbine generator.
Further, the step S1 includes the steps of:
and a current transducer is arranged in a control cabinet of the wind turbine generator cabin, the current transducer is connected in series into an electromagnetic band-type brake power supply loop, and the current transducer acquires current data output by the electromagnetic band-type brake in the automatic yaw operation process of the wind turbine generator in real time.
Further, the current data output by the electromagnetic band-type brake is an alternating current signal, and the range of the alternating current signal is 0-5A; the alternating current signal is converted through the inside of the current transducer, and a direct current signal is correspondingly output, wherein the direct current signal ranges from 4 mA to 20mA.
Further, the step S2 includes the steps of:
The method comprises the steps that an acquisition module is preset in a control cabinet of a wind turbine generator cabin, acquired current data are transmitted to the acquisition module through a cable, and the acquisition module is transmitted to computing equipment of a wind turbine generator tower foundation through a communication optical fiber for operation analysis.
Further, the step S3 includes the steps of:
S3.1, the computing equipment restores the received current data into an alternating current signal, and adds preset time delay to the alternating current signal to finish screening the current data;
S3.2, storing the screened current data into a storage built in the computing equipment, performing logic judgment operation, continuously rolling and calculating according to a preset computing period of the computing equipment to obtain the deviation degree of the electromagnetic band-type brake current at different moments, if the deviation degree is smaller than 0.1A, considering that the electromagnetic band-type brake is normal, and if the deviation degree is not smaller than 0.1A, considering that the electromagnetic band-type brake is abnormal, and entering step S3.3;
And S3.3, when the electromagnetic band-type brake is judged to be abnormal in action, feeding back the main control of the wind turbine generator and triggering the main control of the wind turbine generator to report a fault to stop, and reminding to check and process abnormal conditions of the electromagnetic band-type brake hardware equipment.
An online monitoring system for an electromagnetic band-type brake of a yaw system of a wind turbine, which is used for realizing the online monitoring method for the electromagnetic band-type brake of the yaw system of the wind turbine, comprises the following steps:
the current transducer module is used for collecting current data output by the electromagnetic band-type brake in the automatic yaw operation process of the wind turbine generator;
The acquisition module is used for transmitting the acquired current data to a computing equipment module of the wind turbine tower foundation;
the computing equipment module is used for computing the deviation degree of the current of the electromagnetic band-type brake, judging the running state of the electromagnetic band-type brake of the yaw system of the wind turbine generator according to the deviation degree, and feeding back the running state to the main control module;
the main control module is used for controlling the shutdown and the starting of the electromagnetic band-type brake hardware equipment according to the running state;
The current transmitter module, the acquisition module, the computing equipment module and the main control module are sequentially in communication connection, the main control module is in communication connection with the yaw system of the wind turbine, and the wind turbine is used for controlling the action of the electromagnetic band-type brake.
Further, the current transmitter performs the following operations:
Collecting current data output by an electromagnetic band-type brake in the automatic yaw running process of the wind turbine generator in real time, and converting the current data; the electromagnetic band-type brake outputs current data which are alternating current signals and are in the range of 0-5A; the alternating current signal is converted through the inside of the current transducer, and a direct current signal is correspondingly output, wherein the direct current signal ranges from 4 mA to 20mA.
Further, the computing device module performs the following operations:
The computing equipment restores the received current data into an alternating current signal, and adds preset time delay to the alternating current signal to finish the screening of the current data; storing the screened current data into a storage in the computing equipment, performing logic judgment operation, continuously rolling and calculating according to a preset computing period of the computing equipment to obtain the deviation degree of the electromagnetic band-type brake current at different moments, if the deviation degree is smaller than 0.1A, considering that the electromagnetic band-type brake acts normally, and if the deviation degree is not smaller than 0.1A, considering that the electromagnetic band-type brake acts abnormally.
A non-transitory computer readable medium storing instructions that, when executed by a processor, perform a wind turbine yaw system electromagnetic band-brake on-line monitoring method according to the above.
The computing equipment comprises a processor and a memory for storing a program executable by the processor, wherein when the processor executes the program stored by the memory, the method for monitoring the wind turbine yaw system electromagnetic band-type brake on line is realized.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. The invention can monitor the health state of the yaw system on line in real time, and ensure the safe and stable operation of the unit;
2. the current transducer adopted by the invention adopts series connection to be connected into a power supply loop for measurement, so that compared with the mutual inductance type transducer, the current transducer has high accuracy and can avoid the problem of false alarm;
3. The equipment has low price and high cost performance;
4. The invention can discover the action failure condition of the electromagnetic band-type brake in advance, effectively reduce the replacement and maintenance cost caused by the damage of the yaw sub-component, and avoid the long stop risk caused by the unit maintenance process.
Drawings
FIG. 1 is a schematic diagram of an assembly structure of a yaw system of a wind turbine.
FIG. 2 is a flow chart of an on-line monitoring method for an electromagnetic band brake of a yaw system of a wind turbine.
FIG. 3 is a graph showing the trend of current change corresponding to the number of different yaw electromagnetic band-type brakes.
FIG. 4 is a graph showing the trend of the corresponding current change after the failure of the electromagnetic brake in the yaw process.
FIG. 5 is a schematic diagram of a communication structure of an on-line monitoring system for an electromagnetic band-type brake of a yaw system of a wind turbine.
Detailed Description
The invention will be further illustrated with reference to specific examples.
Example 1
Referring to fig. 2, the method for online monitoring of the electromagnetic band-type brake of the yaw system of the wind turbine generator provided by the embodiment comprises the following steps:
s1, collecting current data output by an electromagnetic band-type brake in an automatic yaw operation process of a wind turbine, wherein the method comprises the following steps of:
And a current transducer is arranged in a control cabinet of the wind turbine generator cabin, the current transducer is connected in series into an electromagnetic band-type brake power supply loop, and the current transducer acquires current data output by the electromagnetic band-type brake in the automatic yaw operation process of the wind turbine generator in real time. The current data output by the electromagnetic band-type brake is an alternating current signal, and the range of the alternating current signal is 0-5A; the alternating current signal is converted through the inside of the current transducer, and a direct current signal is correspondingly output, wherein the direct current signal ranges from 4 mA to 20mA.
S2, presetting an acquisition module in a control cabinet of a wind turbine generator cabin, transmitting acquired current data to computing equipment of a wind turbine generator tower foundation through the acquisition module, and comprising the following steps of:
The method comprises the steps that an acquisition module is preset in a control cabinet of a wind turbine generator cabin, acquired current data are transmitted to the acquisition module through a cable, and the acquisition module is transmitted to computing equipment of a wind turbine generator tower foundation through a communication optical fiber for operation analysis; wherein, the computing device adopts a programmable logic controller PLC.
S3, current data are screened and analyzed in real time through a PLC internal program, the deviation degree of the current of the electromagnetic band-type brake is calculated, the running state of the electromagnetic band-type brake of the yaw system of the wind turbine generator is judged according to the deviation degree, and the running state is fed back to the main control of the wind turbine generator, and the method comprises the following steps:
S3.1, the PLC restores the received current data into an alternating current signal, and adds preset time delay to the alternating current signal to finish the screening of the current data;
S3.2, referring to FIG. 3, storing the screened current data into a memory built in the PLC, performing logic judgment operation, continuously rolling and calculating according to a 0.01S calculation period preset by the PLC to obtain the deviation degree of the electromagnetic band-type brake current at different moments, if the deviation degree is smaller than 0.1A, considering that the electromagnetic band-type brake is normal, and if the deviation degree is not smaller than 0.1A, considering that the electromagnetic band-type brake is abnormal, and entering step S3.3;
S3.3, referring to the graph shown in FIG. 4, in order to show the corresponding current difference change trend of abnormal action of the individual electromagnetic band-type brake in the operation process, when the current difference in the corresponding period exceeds 0.1A trigger fault and the electromagnetic band-type brake is judged to be abnormal, the main control of the wind turbine generator is fed back, the main control of the wind turbine generator is triggered to report the fault and stop, and the abnormal condition of the electromagnetic band-type brake hardware equipment is reminded to be checked and processed.
Example 2
Referring to fig. 5, this embodiment discloses an online monitoring system for an electromagnetic band-type brake of a yaw system of a wind turbine, which is used for implementing the online monitoring method for an electromagnetic band-type brake of a yaw system of a wind turbine according to embodiment 1, and includes:
The current transmitter module a is internally arranged in a wind turbine generator cabin control cabinet d and is used for collecting current data output by an electromagnetic band-type brake in the automatic yaw operation process of the wind turbine generator, and executing the following operations:
Collecting current data output by an electromagnetic band-type brake in the automatic yaw running process of the wind turbine generator in real time, and converting the current data; the electromagnetic band-type brake outputs current data which are alternating current signals and are in the range of 0-5A; the alternating current signal is converted through the inside of the current transducer, and a direct current signal is correspondingly output, wherein the range of the direct current signal is 4-20mA;
The acquisition module b is arranged in the wind turbine generator cabin control cabinet d and is used for transmitting acquired current data to a computing equipment module of the wind turbine generator tower foundation through an optical fiber e;
The computing equipment module c is a PLC and is used for calculating the deviation degree of the current of the electromagnetic band-type brake, judging the running state of the electromagnetic band-type brake of the yaw system of the wind turbine generator according to the deviation degree, feeding the running state back to the main control module, and executing the following operations:
The PLC restores the received current data into an alternating current signal, and adds preset time delay to the alternating current signal to finish the screening of the current data; storing the screened current data into a storage device arranged in the PLC, performing logic judgment operation, continuously rolling and calculating according to a calculation period preset by the PLC to obtain the deviation degree of the electromagnetic band-type brake current at different moments, if the deviation degree is smaller than 0.1A, considering that the electromagnetic band-type brake acts normally, and if the deviation degree is not smaller than 0.1A, considering that the electromagnetic band-type brake acts abnormally;
a main control module (not shown in the figure) for controlling the shutdown and the startup of the electromagnetic band-type brake hardware equipment according to the running state;
The current transmitter module a, the acquisition module b, the computing equipment module c and the main control module (not shown in the figure) are sequentially in communication connection, and the main control module (not shown in the figure) is in communication connection with the yaw system of the wind turbine, so that the wind turbine main control controls the action of the electromagnetic band-type brake.
Example 3
The embodiment discloses a non-transitory computer readable medium storing instructions that, when executed by a processor, perform the wind turbine yaw system electromagnetic band-type brake on-line monitoring method according to embodiment 1.
The non-transitory computer readable medium in this embodiment may be a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a usb disk, a removable hard disk, or the like.
Example 4
The embodiment discloses a computing device, which comprises a processor and a memory for storing a program executable by the processor, wherein when the processor executes the program stored by the memory, the online monitoring method for the electromagnetic band-type brake of the yaw system of the wind turbine generator set is realized.
The computing device described in this embodiment may be a desktop computer, a notebook computer, a smart phone, a PDA handheld terminal, a tablet computer, a programmable logic controller (PLC, programmable Logic Controller), or other terminal devices with processor functionality.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so variations in shape and principles of the present invention should be covered.
Claims (10)
1. An on-line monitoring method for an electromagnetic band-type brake of a yaw system of a wind turbine generator is characterized by comprising the following steps:
s1, collecting current data output by an electromagnetic band-type brake in an automatic yaw operation process of a wind turbine;
S2, presetting an acquisition module in a control cabinet of a wind turbine generator cabin, and transmitting acquired current data to computing equipment of a wind turbine generator tower foundation through the acquisition module;
and S3, screening and analyzing the current data in real time through an internal program of the computing equipment, calculating the deviation degree of the current of the electromagnetic band-type brake, judging the running state of the electromagnetic band-type brake of the yaw system of the wind turbine generator according to the deviation degree, and feeding back the running state to the main control of the wind turbine generator.
2. The method for on-line monitoring of an electromagnetic band-type brake of a yaw system of a wind turbine generator according to claim 1, wherein the step S1 comprises the following steps:
and a current transducer is arranged in a control cabinet of the wind turbine generator cabin, the current transducer is connected in series into an electromagnetic band-type brake power supply loop, and the current transducer acquires current data output by the electromagnetic band-type brake in the automatic yaw operation process of the wind turbine generator in real time.
3. The method for on-line monitoring of the electromagnetic band-type brake of the yaw system of the wind turbine generator system according to claim 2, wherein the current data output by the electromagnetic band-type brake is an alternating current signal, and the range of the alternating current signal is 0-5A; the alternating current signal is converted through the inside of the current transducer, and a direct current signal is correspondingly output, wherein the direct current signal ranges from 4 mA to 20mA.
4. The method for on-line monitoring of an electromagnetic band-type brake of a yaw system of a wind turbine according to claim 1, wherein the step S2 comprises the following steps:
The method comprises the steps that an acquisition module is preset in a control cabinet of a wind turbine generator cabin, acquired current data are transmitted to the acquisition module through a cable, and the acquisition module is transmitted to computing equipment of a wind turbine generator tower foundation through a communication optical fiber for operation analysis.
5. The method for on-line monitoring of an electromagnetic band-type brake of a yaw system of a wind turbine according to claim 1, wherein the step S3 comprises the following steps:
S3.1, the computing equipment restores the received current data into an alternating current signal, and adds preset time delay to the alternating current signal to finish screening the current data;
S3.2, storing the screened current data into a storage built in the computing equipment, performing logic judgment operation, continuously rolling and calculating according to a preset computing period of the computing equipment to obtain the deviation degree of the electromagnetic band-type brake current at different moments, if the deviation degree is smaller than 0.1A, considering that the electromagnetic band-type brake is normal, and if the deviation degree is not smaller than 0.1A, considering that the electromagnetic band-type brake is abnormal, and entering step S3.3;
And S3.3, when the electromagnetic band-type brake is judged to be abnormal in action, feeding back the main control of the wind turbine generator and triggering the main control of the wind turbine generator to report a fault to stop, and reminding to check and process abnormal conditions of the electromagnetic band-type brake hardware equipment.
6. An on-line monitoring system for an electromagnetic band-type brake of a yaw system of a wind turbine, which is characterized by being used for realizing the on-line monitoring method for the electromagnetic band-type brake of the yaw system of the wind turbine according to any one of claims 1-5, comprising the following steps:
the current transducer module is used for collecting current data output by the electromagnetic band-type brake in the automatic yaw operation process of the wind turbine generator;
The acquisition module is used for transmitting the acquired current data to a computing equipment module of the wind turbine tower foundation;
the computing equipment module is used for computing the deviation degree of the current of the electromagnetic band-type brake, judging the running state of the electromagnetic band-type brake of the yaw system of the wind turbine generator according to the deviation degree, and feeding back the running state to the main control module;
the main control module is used for controlling the shutdown and the starting of the electromagnetic band-type brake hardware equipment according to the running state;
The current transmitter module, the acquisition module, the computing equipment module and the main control module are sequentially in communication connection, the main control module is in communication connection with the yaw system of the wind turbine, and the wind turbine is used for controlling the action of the electromagnetic band-type brake.
7. The wind turbine yaw system electromagnetic band-type brake on-line monitoring system of claim 6, wherein the current transmitter performs the following operations:
Collecting current data output by an electromagnetic band-type brake in the automatic yaw running process of the wind turbine generator in real time, and converting the current data; the electromagnetic band-type brake outputs current data which are alternating current signals and are in the range of 0-5A; the alternating current signal is converted through the inside of the current transducer, and a direct current signal is correspondingly output, wherein the direct current signal ranges from 4 mA to 20mA.
8. The wind turbine yaw system electromagnetic band-type brake on-line monitoring system of claim 6, wherein the computing device module performs the following operations:
The computing equipment restores the received current data into an alternating current signal, and adds preset time delay to the alternating current signal to finish the screening of the current data; storing the screened current data into a storage in the computing equipment, performing logic judgment operation, continuously rolling and calculating according to a preset computing period of the computing equipment to obtain the deviation degree of the electromagnetic band-type brake current at different moments, if the deviation degree is smaller than 0.1A, considering that the electromagnetic band-type brake acts normally, and if the deviation degree is not smaller than 0.1A, considering that the electromagnetic band-type brake acts abnormally.
9. A non-transitory computer readable medium storing instructions which, when executed by a processor, perform the wind turbine yaw system electromagnetic band-brake on-line monitoring method of any one of claims 1-5.
10. A computing device comprising a processor and a memory for storing a program executable by the processor, wherein the processor, when executing the program stored in the memory, implements the method for on-line monitoring of an electromagnetic band-type brake of a yaw system of a wind turbine according to any one of claims 1-5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410079396.7A CN118066075A (en) | 2024-01-19 | 2024-01-19 | Online monitoring method and system for electromagnetic band-type brake of yaw system of wind turbine generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410079396.7A CN118066075A (en) | 2024-01-19 | 2024-01-19 | Online monitoring method and system for electromagnetic band-type brake of yaw system of wind turbine generator |
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| CN118066075A true CN118066075A (en) | 2024-05-24 |
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| CN202410079396.7A Pending CN118066075A (en) | 2024-01-19 | 2024-01-19 | Online monitoring method and system for electromagnetic band-type brake of yaw system of wind turbine generator |
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| CN (1) | CN118066075A (en) |
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- 2024-01-19 CN CN202410079396.7A patent/CN118066075A/en active Pending
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