CN114776522B - Method for solving vortex-induced vibration of wind turbine generator - Google Patents
Method for solving vortex-induced vibration of wind turbine generator Download PDFInfo
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- CN114776522B CN114776522B CN202210711352.2A CN202210711352A CN114776522B CN 114776522 B CN114776522 B CN 114776522B CN 202210711352 A CN202210711352 A CN 202210711352A CN 114776522 B CN114776522 B CN 114776522B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0296—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/32—Wind speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/328—Blade pitch angle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/329—Azimuth or yaw angle
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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
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Abstract
The invention relates to the technical field of wind motors, in particular to a method for solving vortex-induced vibration of a wind turbine generator, which comprises the following steps: when the wind turbine generator is in a shutdown state, after preprocessing, judging whether a front-back vibration value of a cabin of the wind turbine generator is greater than PA _ ACCB, if so, judging whether a wind speed is less than PA _ WSH and greater than PA _ WSL, if so, judging whether a wind direction is greater than PA _ WDb, if so, judging whether a yaw system of the wind turbine generator normally works, if not, judging whether the wind speed is less than PA _ WSM, if so, judging whether a pitch system of the wind turbine generator normally works, if so, selecting a single blade of the pitch system to automatically pitch at a set angle, judging whether the wind speed is greater than PA _ WSM or whether the front-back vibration value of the cabin is less than PA _ ACCs, and if so, finishing the suppression of the wind turbine generator in the shutdown state on a vortex-induced vibration phenomenon.
Description
Technical Field
The invention relates to the technical field of wind motors, in particular to a method for solving vortex-induced vibration of a wind turbine generator.
Background
In the shutdown process of the wind turbine generator, vortex-induced vibration is easy to occur, the phenomenon is difficult to weaken under the condition that the external conditions are not changed, the macroscopic swing of the upper section of a tower barrel and an engine room of the wind turbine generator is easy to cause, and the life safety of workers of the wind turbine generator is extremely easy to be endangered. However, at present, during the shutdown of the wind turbine, when the vortex-induced vibration phenomenon occurs, the wind turbine cannot attenuate the vibration by yawing or pitching. Based on this, in order to overcome the above problems, we have designed a method for solving the vortex-induced vibration of the wind turbine.
Disclosure of Invention
The invention aims to provide a method for solving vortex-induced vibration of a wind turbine generator, which is used for solving the technical problem.
The embodiment of the invention is realized by the following technical scheme:
a method for resolving vortex-induced vibration of a wind turbine generator, the method comprising the steps of:
when the wind turbine generator is in a shutdown state, judging whether the wind turbine generator generates vortex-induced vibration after the wind turbine generator is subjected to early-stage treatment, and if not, ending the process; if so, uploading alarm information, judging whether a yaw system of the wind turbine generator works normally, if so, performing post-processing, and ending the process; if not, entering the next step;
judging whether the wind speed is less than the PA _ WSM value or not, if not, ending the process; if so, judging whether a pitch control system of the wind turbine generator works normally, and if not, ending the process; if so, selecting a single blade of the pitch system according to a set digital sequence to perform automatic pitch control at a set angle, keeping the brake of the high-speed shaft of the pitch system released, judging whether the front and back vibration value of the cabin is smaller than the PA _ ACCs value, and if not, re-selecting the single blade of the pitch system according to the set digital sequence; and if so, withdrawing the selected single blade, returning the selected single blade to the angle before pitch variation, eliminating alarm information, finishing the suppression of the wind turbine generator in a shutdown state on the vortex-induced vibration phenomenon, and ending the process, wherein the blades of the pitch variation system are preset with random number serial numbers.
Optionally, the specific conditions of whether the wind turbine generator generates vortex-induced vibration are as follows: judging whether the front and back vibration value of the cabin of the wind turbine generator is greater than the PA _ ACCb value or not, and if not, ending the process; if so, judging whether the wind speed is smaller than the PA _ WSH value and larger than the PA _ WSL value, and if not, ending the process; if yes, judging whether the wind direction is larger than the PA-WDb value, and if not, ending the process; if so, uploading alarm information and judging whether a yaw system of the wind turbine generator works normally.
Optionally, wherein the PA _ ACCb value is set to
The PA _ WSH value is set to 30m/s, the PA _ WSL value is set to 0.5m/s, the PA _ WDb value is set to 70 degrees, the PA _ WSM value is set to 15m/s, and the PA _ ACCs value is set to
。
Optionally, when the wind turbine is in a shutdown state, the preprocessing step includes:
judging whether workers of the wind turbine generator have maintenance authority, if yes, manually operating through a tower footing of the wind turbine generator or an engine room of the wind turbine generator, and ending the process; if not, judging whether the yaw system of the wind turbine generator can be manually maintained, if so, manually operating the yaw system for maintenance through the interaction equipment in a remote mode, and ending the process; if not, judging whether the pitch system of the wind turbine generator can be manually maintained, if so, manually remotely operating the pitch system through the interaction equipment for maintenance, and ending the process; if not, judging whether the front and rear vibration value of the cabin of the wind turbine generator is larger than the PA _ ACCb value or not.
Optionally, when the yaw system of the wind turbine generator works normally, the post-processing step includes:
starting a yaw system of the wind turbine generator, sequentially and automatically aligning wind according to a set sequence, judging whether the wind direction is smaller than a PA-WDs value or the wind speed is smaller than a PA-WSL value or the wind speed is larger than a PA-WSH value, and if not, automatically aligning wind again according to the set sequence; if so, stopping the yawing system of the wind turbine generator, eliminating alarm information, finishing the suppression of the wind turbine generator in a shutdown state on the vortex-induced vibration phenomenon, and ending the process.
Optionally, the PA _ WDs value is set to 15 degrees.
Optionally, the set angle is specifically 30 degrees.
Optionally, the setting of the numerical sequence is specifically an arrangement sequence of numerical sequence numbers from small to large.
Optionally, the alarm information is specifically reported through an SCADA.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
the wind turbine generator designed by the invention can automatically or manually yaw and pitch under the condition that normal shutdown, standby, manual shutdown, yaw and pitch system are not in fault, so that the vortex-induced vibration phenomenon of the wind turbine generator is weakened, the safety of the wind turbine generator and workers of the wind turbine generator is ensured, and meanwhile, alarm information is uploaded through the SCADA, so that convenience is provided for the operation on duty of the wind turbine generator.
Drawings
Fig. 1 is a schematic flow chart of a method for solving vortex-induced vibration of a wind turbine generator according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Vortex-induced vibration: during the shutdown process of the wind turbine generator, when the nacelle is windward, the wind as a fluid flows through the tower and the outer part of the blade to form a double-column streaming phenomenon, and the acting force generated by the double-column streaming phenomenon is far greater than the force generated by the shedding of the vortex of the single tower; the wake vortex that drops of a tower section of thick bamboo of flowing through can produce the effort to the unit, and the frequency that drops of this power is unanimous with the unit first order frequency of the high tower section of thick bamboo of 90m, so can form resonance, and this resonance problem is because long blade has produced the stack of twin columns streaming with a tower section of thick bamboo to enlarge this value, and the frequency locking phenomenon of the vortex that drops makes the unit vibration continuously enlarge.
As shown in fig. 1, the present invention provides one of the embodiments: a method for resolving vortex-induced vibration of a wind turbine, the method comprising the steps of:
when the wind turbine generator is in a shutdown state, judging whether the wind turbine generator generates vortex-induced vibration after the wind turbine generator is subjected to early-stage treatment, and if not, ending the process; if so, uploading alarm information, judging whether a yaw system of the wind turbine generator works normally, if so, performing post-processing, and ending the process; if not, entering the next step;
the specific conditions of whether the wind turbine generator generates vortex-induced vibration are as follows: judging whether the front and back vibration value of the cabin of the wind turbine generator is greater than the PA _ ACCb value or not, and if not, ending the process; if so, judging whether the wind speed is smaller than the PA _ WSH value and larger than the PA _ WSL value, and if not, ending the process; if yes, judging whether the wind direction is larger than the PA-WDb value, and if not, ending the process; if so, uploading alarm information and judging whether a yaw system of the wind turbine generator works normally.
In the present embodiment, the main condition to first determine the vortex-induced vibration is that the vibration acceleration value exceeds the vibration acceleration maximum value
And then, after the wind speed and the wind direction (referring to the included angle between the actual wind direction and the engine room) are judged and meet the conditions, the system can judge the vortex-induced vibration of the fan.
Judging whether the wind speed is less than the PA _ WSM value or not, if not, ending the process; if so, judging whether a pitch control system of the wind turbine generator works normally, and if not, ending the process; if so, selecting a single blade of the pitch system according to a set digital sequence to perform automatic pitch control at a set angle, keeping the brake of the high-speed shaft of the pitch system released, judging whether the front and back vibration value of the cabin is smaller than the PA _ ACCs value, and if not, re-selecting the single blade of the pitch system according to the set digital sequence; and if so, withdrawing the selected single blade, returning the selected single blade to the angle before pitch variation, eliminating alarm information, finishing the suppression of the wind turbine generator in a shutdown state on the vortex-induced vibration phenomenon, and ending the process, wherein the blades of the pitch variation system are preset with random number serial numbers.
In this embodiment, whether a fore-and-aft vibration value of a nacelle of the wind turbine generator is greater than a PA _ ACCb value or not, whether a wind speed is less than a PA _ WSH value and greater than a PA _ WSL value or not, and whether a wind direction is greater than a PA _ WDb value are determined, specifically, whether vortex-induced vibration occurs in the wind turbine generator or not are determined, after the determination is passed and the next step is performed, the wind turbine generator is determined to generate vortex-induced vibration, and the next step is performed; in addition, whether the wind speed is less than the PA _ WSM value is determined, specifically, the determination here is: the PA _ WSM value is specifically a dangerous value of the wind speed, and when the wind speed reaches the dangerous value, the rear wind turbine generator carries out blade pitch variation through a pitch variation system, so that the rear process of automatically judging and inhibiting vortex-induced vibration through the wind turbine generator is very dangerous; the first wind speed determination is from 90 ° to 30 ° for the blades to be fully feathered, and whether or not the wind speed is less than the PA _ WSM (15 m/s) value. The second variable pitch part judges whether the wind speed is greater than the PA _ WSM value or not, and the purpose is to change the pitch of the blade from 30 degrees to 90 degrees; in addition, the fore-aft vibration value of the nacelle is smaller than the PA _ ACCs value, indicating completion of the vortex-induced vibration suppression process.
Wherein, when the wind turbine generator system is in the shutdown state, the step of preliminary treatment includes:
judging whether workers of the wind turbine generator have maintenance authority, if yes, manually operating through a tower footing of the wind turbine generator or an engine room of the wind turbine generator, and ending the process; if not, judging whether the yaw system of the wind turbine generator can be manually maintained, if so, manually operating the yaw system for maintenance through the interaction equipment in a remote mode, and ending the process; if not, judging whether a pitch system of the wind turbine generator can be manually maintained, if so, manually remotely operating the pitch system through the interaction equipment for maintenance, and ending the process; if not, judging whether the front and back vibration value of the cabin of the wind turbine generator is larger than the PA _ ACCB value or not.
Wherein, when the driftage system of wind turbine generator system normally worked, the step of post processing includes:
starting a yaw system of the wind turbine generator, sequentially and automatically aligning wind according to a set sequence, judging whether the wind direction is smaller than a PA-WDs value or the wind speed is smaller than a PA-WSL value or the wind speed is larger than a PA-WSH value, and if not, automatically aligning wind again according to the set sequence; if so, stopping the yawing system of the wind turbine generator, eliminating alarm information, finishing the inhibition of the wind turbine generator in a stopped state on the vortex-induced vibration phenomenon, and ending the flow.
In this embodiment, a vortex-induced identification control logic is added, and when the unit is not maintained by a person, the situation that the vibration is large and the wind direction difference is large can be suppressed by an automatic yawing or automatic pitch control method, and if the unit is maintained by a person, the unit is yawed or pitch controlled by manual operation.
When the unit is in a shutdown state and no person carries out maintenance operation (remote permission and manual maintenance yaw and manual maintenance pitch control are not enabled), the main control system monitors that the front and back vibration value of the cabin is larger than PA _ ACCb, the wind speed is between 0.5 and 30m/s, the wind direction is larger than PA _ WDb, 30s of delay is carried out, the unit reports an alarm, and the main control system uploads an SCADA (supervisory control and data acquisition) to prompt the unit to execute vortex-induced suppression action and execute the following actions:
(1) and when the yawing system works normally, performing yawing on wind until the wind speed of the unit is less than 0.5m/s, or the wind speed is more than 30m/s, or the wind direction is less than PA-WDs, and stopping yawing while eliminating warning.
(2) When the yaw system is abnormal but the pitch system is normal, the wind speed is less than 15m/s, the No. 1 blade is maintained to be pitched to 30 degrees, and meanwhile, the brake of the high-speed shaft is released to ensure that the wind wheel can idle until the wind speed is more than 15m/s or the fore-and-aft vibration value of the engine room is less than PA-ACCs.
Because the unit is in a shutdown state and cannot execute automatic pitch variation or automatic yaw when maintenance operation is carried out by people, the unit is in the shutdown state, and before the maintenance operation is carried out on a field plan, the following vortex-induced prevention operation needs to be carried out:
(1) the main control system is operated to carry out manual yawing, and the engine room of the unit is aligned to the main wind direction of the wind field in advance, so that the probability of vortex excitation is reduced;
(2) if no person enters the hub in the maintenance operation, the master control system can be operated to change the pitch of the No. 1 blade to 30 degrees to maintain the pitch under the condition of ensuring safety, and the condition of vortex-induced vibration is relieved.
When the unit is in a shutdown state and a local person carries out maintenance operation (local maintenance authority), the front and back vibration value of the cabin is monitored to be greater than PA _ ACCw (default)
) The wind speed is between PA _ WSL (default 0.5 m/s) and PA _ WSH (default 30 m/s), the wind direction is larger than PA _ WDb (default 70 degrees), the delay is 20s, and a cabin buzzer alarms to remind cabin personnel to operate a handle.
In this embodiment, PA _ ACCb is the maximum value of vibration acceleration, specifically
. PA _ WSH is the actual wind speed maximum, and the specific value is 30 m/s. PA _ WSL is the minimum value of the actual wind speed, and the specific value is 0.5 m/s. PA _ WDb is the wind direction, with a specific value of 70 degrees. PA _ WSM is the actual wind speed, and the specific value is 15 m/s. PA _ ACCs is a safety value of the front and back vibration value (namely vibration acceleration) of the cabin, and a specific value
. PA _ WDs is actual wind direction, specific value is 15 degrees, PA _ ACCw is safety value for manually setting vibration acceleration, specific value
When exceeding this value, personnel can have danger at wind turbine generator system work, therefore cabin bee calling organ reports to the police and reminds cabin personnel to carry out the handle operation, notes: the wind direction here is actually a wind direction in a different state, and the wind direction is not a fixed value and changes constantly.
In addition, in the embodiment, the master control sends an SCADA warning signal, and after the SCADA receives the warning code uploaded by the master control, the unit corresponding to the master interface generates a text prompt to remind the personnel in the SCADA central control room to pay close attention to the SCADA central control room and contact the relevant personnel in time.
It is worth mentioning that: the vortex-induced phenomenon aimed at in the embodiment is a cabin front-back vibration phenomenon of a wind turbine generator with a lightweight design under the working conditions of a small wind speed (0.5-30 m) and a cabin crosswind of about 90 degrees. The wind direction is actually the angle between the nacelle and the actual wind speed.
To sum up, under the condition that the designed wind turbine generator is in normal shutdown, standby, manual shutdown, yawing and a pitch system are not failed, the wind turbine generator can perform yawing and pitch control automatically or manually so as to weaken the vortex-induced vibration phenomenon of the wind turbine generator, ensure the safety of the wind turbine generator and workers of the wind turbine generator, and simultaneously upload alarm information through the SCADA, thereby providing convenience for the operation on duty of the wind turbine generator.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A method for solving vortex-induced vibration of a wind turbine generator is characterized by comprising the following steps:
when the wind turbine generator is in a shutdown state, judging whether the wind turbine generator generates vortex-induced vibration after the wind turbine generator is subjected to early-stage treatment, and if not, ending the process; if so, uploading alarm information, judging whether a yaw system of the wind turbine generator works normally, if so, performing post-processing, and ending the process; if not, entering the next step;
judging whether the wind speed is less than the PA _ WSM value or not, if not, ending the process; if so, judging whether a variable pitch system of the wind turbine generator works normally, and if not, ending the flow; if so, selecting a single blade of the pitch system according to a set digital sequence to perform automatic pitch control at a set angle, keeping the brake of the high-speed shaft of the pitch system released, judging whether the front and back vibration value of the cabin is smaller than the PA _ ACCs value, and if not, re-selecting the single blade of the pitch system according to the set digital sequence; if so, withdrawing the selected single blade, returning the selected single blade to the angle before pitch variation, eliminating alarm information, finishing the suppression of the wind turbine generator in a shutdown state on the vortex-induced vibration phenomenon, and ending the process, wherein random number serial numbers are preset in the blades of the pitch variation system;
the specific conditions of whether the wind turbine generator generates vortex-induced vibration are as follows: judging whether the front and back vibration value of the cabin of the wind turbine generator is greater than the PA _ ACCb value or not, and if not, ending the process; if so, judging whether the wind speed is smaller than the PA _ WSH value and larger than the PA _ WSL value, and if not, ending the process; if yes, judging whether the wind direction is larger than the PA-WDb value, and if not, ending the process; if so, uploading alarm information and judging whether a yaw system of the wind turbine generator works normally;
PA _ ACCb value set to
The PA _ WSH value is set to 30m/s, the PA _ WSL value is set to 0.5m/s, the PA _ WDb value is set to 70 degrees, the PA _ WSM value is set to 15m/s, and the PA _ ACCs value is set to
;
When the wind turbine generator is in a shutdown state, the preprocessing steps comprise:
judging whether a worker of the wind turbine generator has maintenance authority, if so, manually operating the wind turbine generator through a tower footing of the wind turbine generator or an engine room of the wind turbine generator, and ending the process; if not, judging whether the yaw system of the wind turbine generator can be manually maintained, if so, manually operating the yaw system for maintenance through the interaction equipment in a remote mode, and ending the process; if not, judging whether a pitch system of the wind turbine generator can be manually maintained, if so, manually remotely operating the pitch system through the interaction equipment for maintenance, and ending the process; if not, judging whether the front and back vibration value of the cabin of the wind turbine generator is greater than the PA _ ACCb value or not;
when the yawing system of the wind turbine generator normally works, the post-processing steps comprise:
starting a yaw system of the wind turbine generator, sequentially and automatically aligning wind according to a set sequence, judging whether the wind direction is smaller than a PA _ WDs value or the wind speed is smaller than a PA _ WSL value or the wind speed is larger than a PA _ WSH value, and if not, automatically aligning wind again according to the set sequence; if so, stopping the yawing system of the wind turbine generator, eliminating alarm information, finishing the inhibition of the wind turbine generator in a stopped state on the vortex-induced vibration phenomenon, and ending the flow.
2. The method for solving the vortex-induced vibration of the wind turbine generator according to claim 1, wherein a PA _ WDs value is set to 15 degrees.
3. The method for solving the vortex-induced vibration of the wind turbine generator according to claim 1, wherein the set angle is 30 degrees.
4. The method for solving the vortex-induced vibration of the wind turbine generator according to claim 1, wherein the numerical sequence is set to be an arrangement sequence from small to large according to numerical sequence numbers.
5. The method for solving the vortex-induced vibration of the wind turbine generator according to claim 1, wherein the alarm information is reported by SCADA.
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