CN112814853A - Clearance monitoring method, device, equipment and storage medium - Google Patents

Clearance monitoring method, device, equipment and storage medium Download PDF

Info

Publication number
CN112814853A
CN112814853A CN202110181660.4A CN202110181660A CN112814853A CN 112814853 A CN112814853 A CN 112814853A CN 202110181660 A CN202110181660 A CN 202110181660A CN 112814853 A CN112814853 A CN 112814853A
Authority
CN
China
Prior art keywords
tower
monitoring
blade
minimum
central axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110181660.4A
Other languages
Chinese (zh)
Inventor
王兴林
曹俊伟
张硕望
黄凌翔
官艳凤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XEMC Windpower Co Ltd
Original Assignee
XEMC Windpower Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XEMC Windpower Co Ltd filed Critical XEMC Windpower Co Ltd
Priority to CN202110181660.4A priority Critical patent/CN112814853A/en
Publication of CN112814853A publication Critical patent/CN112814853A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

The application provides a clearance monitoring method, a clearance monitoring device, clearance monitoring equipment and a storage medium, wherein the clearance monitoring method comprises the step of obtaining the minimum safe clearance L between a wind generating set blade and the longitudinal central axis of a tower drumSAnd minimum headroom sector azimuth θS(ii) a Acquiring a minimum distance L and a minimum monitoring azimuth theta between a blade reflection position of a wind generating set and a longitudinal central axis of a tower; judging the magnitude of the monitoring value and the safety value; when L is less than or equal to LSOr theta is less than or equal to thetaSWhen the two meet at least one time, an alarm is sent out; otherwise, continuing monitoring. The distance measuring sensor is installed at the intersection point of the central axis of the tower on the surface of the cabin of the wind generating set and the central axis of the tower, the position is suitable for wind generating sets including a double-fed wind generating set and a direct-drive wind generating set, and the distance measuring sensor is easy to install and maintain and operate; only need to useA distance measuring sensor is installed, so that the economic cost is saved; the monitoring method provided by the invention can further compress the false alarm probability and improve the generating time of the unit according to the selection of the actual situation.

Description

Clearance monitoring method, device, equipment and storage medium
Technical Field
The invention relates to the field of wind power generation, in particular to a clearance monitoring method, a clearance monitoring device, clearance monitoring equipment and a storage medium.
Background
With the rapid development of the wind power industry, the single machine capacity of the wind generating set is continuously increased, the height of the tower barrel is increased, the blades are longer and longer, and the clearance distance between the blade tips and the tower barrel is difficult to ensure. In the operation process of the unit, once the blade is damaged, the sensor fails, an extreme wind condition and the like occur, the distance between the blade tip and the tower barrel is rapidly reduced, the condition of 'tower sweeping' can be caused, and huge economic loss is caused.
In the actual operation of the unit, the wind conditions are complex and changeable, and the distance between the blade tip and the tower barrel is dynamically changed. Although the static thrust of the unit is the maximum under the working condition that the unit is close to the rated rotating speed and does not change the pitch, the moment when the clearance of the blade tip and the tower drum is greatly reduced due to the common coupling of the torsional deformation of the blade and the torsional distortion of the tower drum has a highly nonlinear factor, and a control system which simply depends on the traditional state feedback is difficult to accurately predict the moment when the clearance is insufficient. Therefore, it is necessary to effectively monitor and control the clearance between the blade tip and the tower of the wind turbine generator, so as to reduce the risk of tower sweeping.
Disclosure of Invention
In view of the above, the present invention provides a clearance monitoring method, apparatus, device and storage medium to solve the problems in the prior art.
In a first aspect, an embodiment of the present application provides a method for headroom monitoring, the method being applied to a wind turbine generator system, the wind turbine generator system including: the system comprises a unit control device, blades, a hub, a cabin, a tower and a distance measuring sensor; the tower is positioned on the ground, the engine room is arranged at the top of the tower, and the unit control device is arranged in the engine room; the engine room is connected with the generator and the hub; the blades are mounted on the hub; the distance measuring sensor is arranged at the intersection point of the longitudinal central axis of the tower barrel on the side surface of the cabin and the transverse central axis of the cabin; the distance measuring sensor rotates 360 degrees at the installation center position and transmits sensing signals along the circumference, the effective area covered by the transmission of the sensing signals is a distance measuring area, and the sensing signals are reflected when encountering the blades of the wind generating set;
the method comprises the following steps:
obtaining the minimum safe clearance L between the wind generating set blade and the longitudinal central axis of the towerSAnd minimum headroom sector azimuth θS；
Acquiring a minimum distance L and a minimum monitoring azimuth theta between a target area of a wind generating set blade and a longitudinal central axis of a tower; the blade target area is the full-length position of the blade from the blade tip to the distance 1/8 from the blade tip; the minimum monitoring azimuth angle theta is an angle of a sensing signal sent by the ranging sensor when the ranging sensor receives the reflected sensing signal in the ranging area;
judging the magnitude of the monitoring value and the safety value; when L is less than or equal to LSOr theta is less than or equal to thetaSWhen the two meet one, an alarm is sent out; otherwise, continuing monitoring.
Further, the step of obtaining the minimum distance L between the target wind generating set fan blade and the longitudinal central axis of the tower drum includes:
receiving a reflected sensing signal of the blade in a ranging area through a ranging sensor; the reflected sensing signal is formed by reflecting the sensing signal when the sensing signal is reflected by the reflecting position of the blade after the distance measuring sensor emits the sensing signal towards the fan blade;
calculating the distance L between the distance measuring sensor and the reflection point of the sensing signal according to the transmission time and the speed of the sensing signalAB；
According to LABAnd monitoring the azimuth angle theta, and calculating the minimum distance L between the target wind generating set blade and the longitudinal central axis of the tower.
Further, the target area of the wind generating set blade is determined according to the height of a tower and the length of the blade.
Further, the minimum safe clearance L between the fan blade of the target wind generating set and the longitudinal central axis of the tower barrel is obtainedSAnd minimum headroom sector azimuth θSThe method comprises the following steps:
according to the height of the tower and the length of the blades, the minimum safe clearance L between the fan blades and the longitudinal central axis of the tower is calculated in a simulation modeSAnd minimum headroom sector azimuth θS。
In a second aspect, an embodiment of the present application provides a headroom monitoring apparatus, the apparatus includes:
a first obtaining module: minimum safe clearance L used between wind generating set blade and tower drum longitudinal central axisSAnd minimum headroom sector azimuth θS；
A second obtaining module: the method comprises the steps of obtaining a minimum distance L and a minimum monitoring azimuth theta between a target area of a wind generating set blade and a longitudinal central axis of a tower;
a judging module: the monitoring device is used for judging the size of the monitoring value and the safety value; when L is less than or equal to LSOr theta is less than or equal to thetaSWhen the two meet at least one time, an alarm is sent out; otherwise, continuing monitoring.
In a third aspect, an embodiment of the present application provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the headroom monitoring method when executing the computer program.
In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the headroom monitoring method described above.
The technical scheme provided by the embodiment of the application can have the following beneficial effects: the distance measuring sensor is arranged at the intersection point of the central axis of the tower on the surface of the engine room on one side of the wind generating set and the central axis of the hub engine room, the position is suitable for the wind generating sets comprising a double-fed wind generating set and a direct-drive wind generating set, and the installation and the maintenance are easy to operate; only one distance measuring sensor is needed to be installed, and economic cost is saved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 shows a schematic clearance monitoring flow provided by an embodiment of the present application;
fig. 2 is a diagram illustrating headroom monitoring minimum safety clearance and headroom sector azimuth provided by an embodiment of the present application;
fig. 3 is a schematic diagram illustrating a headroom sector monitoring method provided by an embodiment of the present application;
FIG. 4 is an enlarged view of a portion of FIG. 3;
fig. 5 is a schematic structural diagram of a computer device according to an embodiment of the present application.
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 embodiment of the invention provides a clearance monitoring method, a clearance monitoring device, clearance monitoring equipment and a storage medium, which are described by embodiments below.
Fig. 1 is a schematic flow chart of a clearance monitoring method provided by an embodiment of the present application, in which a target wind turbine generator set is operated according to the method, as shown in fig. 2 to 4, the set control device, the blades, the hub, the nacelle, the tower, and the distance measuring sensor; the tower is positioned on the ground, the engine room is arranged at the top of the tower, and the unit control device is arranged in the engine room; the engine room is connected with the generator and the hub; the blades are mounted on the hub; the distance measuring sensor is arranged on the longitudinal central axis (L) of the tower barrel on the side surface of the cabin2) Transverse central axis (L) of the nacelle3) The intersection point (point A) of the distance measuring device, and the installation angle can be properly adjusted, so that the distance measuring plane is more friendly; the distance measuring sensor rotates 360 degrees at the installation center position and transmits sensing signals along the circumference, the effective area covered by the transmitted sensing signals is a distance measuring area, and the sensing signals are reflected when encountering the blades of the wind generating set.
The method only uses one distance measuring sensor for monitoring, so that the economic cost is saved, the distance measuring sensor is arranged at the intersection point of the longitudinal central axis of the tower barrel on the side surface of the cabin and the transverse central axis of the cabin, the installation position is suitable for wind generating sets of all types, a TOF (time of Flight measurement) distance measuring sensor is used as an example to describe the monitoring method, but the protection range is not limited to the TOF distance measuring sensor, and other devices which can achieve the same functions as the TOF distance measuring sensor are used as the protection range of the method.
TOF ranging sensors measure the distance between nodes using the time of flight of a signal to and from two asynchronous transceivers (transceivers).
The TOF transmits a sensing signal along the circumference at the installation center, and an effective area covered by the transmitted sensing signal is a ranging area; the method comprises the steps of 101-103;
101, acquiring a minimum safe clearance L between a wind generating set blade and a longitudinal central axis of a towerSAnd minimum headroom sector azimuth θS；
When the wind generating set safely operates under different wind conditions, the blade and the tower cylinder are verticalThe minimum distance between the central axes is the minimum clearance LSAt the moment, the installation position of the ranging sensor is taken as a vertex, and the included angle between the minimum clearance distance point on the blade and the longitudinal center of the tower barrel is taken as the minimum clearance sector azimuth angle thetaS。
Minimum safe clearance LSAnd minimum headroom sector azimuth θSThe simulation software can be obtained by calculation of simulation software of a common wind generating set, and the simulation software commonly used in the wind power generation industry comprises the following components: FAST, black, etc. The clearance output by common simulation software in the wind power generation industry is the minimum distance between the blade and the wall of the tower barrel, and the minimum clearance L in the applicationSThe minimum distance between the blade and the wall of the tower barrel is added with the radius of the tower barrel.
For example, the height of a tower of a wind generating set is 80 meters, the length of a blade is 51.5 meters, relevant parameters of a set model are input into simulation software, clearance distances under different working conditions are simulated, the minimum clearance distance is 6 meters, the azimuth angle of the minimum clearance sector is 6.9 degrees, and the target area of the blade is about 6 meters from the blade tip to the full-length position of the blade which is 1/8 degrees. The simulation software commonly used in the wind power generation industry comprises: FAST, black, etc.
102, acquiring a minimum distance L and a minimum monitoring azimuth theta between a target area of a wind generating set blade and a longitudinal central axis of a tower; the blade target area is the full-length position of the blade from the blade tip to the distance 1/8 from the blade tip; and the minimum monitoring azimuth angle theta is an angle of a sensing signal sent by the ranging sensor when the ranging sensor receives the reflected sensing signal in the ranging area.
The method comprises the following specific steps of obtaining the minimum distance L between the target area of the wind generating set blade and the longitudinal central axis of the tower barrel:
step 1021, receiving a reflected sensing signal of the blade in a distance measuring area through a distance measuring sensor; the reflected signal is formed by reflecting the sensing signal when the sensing signal meets a point B at the reflecting position of the blade after the distance measuring sensor emits the sensing signal towards the fan blade;
in the ranging area, the TOF ranging sensor rotates at a certain frequency by 360 degrees to transmit signals, and when the blade does not rotate to the ranging area, the signals are not blocked and can be transmitted to the end of a range; when the blade rotates to the ranging area, the signal meets the target position of the blade and is reflected; the reflected signal is received by a TOF ranging sensor.
The distance measuring sensor calculates the minimum distance L between the target position of the blade of the wind generating set and the distance measuring sensor according to the signal transmission time and the signal transmission speedABAnd a minimum monitoring azimuth angle theta.
The monitoring azimuth angle, namely the angle of a signal sent by the ranging sensor, takes the installation position as a vertex, transmits the signal towards the ground when the distance is shortest, and rotates the transmitted signal towards the blade to be the monitoring azimuth angle theta;
step 1022, calculating the distance L between the ranging sensor and the reflection point of the sensing signal according to the transmission time and the speed of the sensing signalAB；
Step 1023, according to LABMonitoring the azimuth angle theta, and calculating the minimum distance L between the target wind generating set blade and the longitudinal central axis of the tower;
for example, by the above method, 7 meters of a 7-level wind-time distance monitoring value, 8 meters of an azimuth angle monitoring value, 5.8 meters of a 9-level wind-time distance monitoring value, and 6.67 degrees of an azimuth angle monitoring value are calculated.
According to the formula L ═ LABAnd calculating the distance L between the target position of the blade and the longitudinal central axis of the tower by multiplying sin theta.
Step 103, judging the size of the monitoring value and the safety value; when L is less than or equal to LSOr theta is less than or equal to thetaSWhen the two meet one, an alarm is sent out; otherwise, continuing monitoring.
Judging the magnitude of the monitoring value and the safety value, the clearance distance monitoring value L and the minimum safe clearance distance LSWhen L is less than or equal to LSWhen the alarm is received, the unit control system sends an alarm; clearance sector azimuth angle monitoring value theta and minimum clearance sector azimuth angle thetaSWhen theta is less than or equal to thetaSWhen the alarm is received, the unit control system sends an alarm; the executing mechanism takes corresponding protective measures, such as shutdown or variable-pitch operation; otherwise, continuing monitoring.
Comparing the obtained monitoring value with the minimum safety clearance value, wherein the 7-level wind-hour distance monitoring value is 7 meters and is greater than 6 meters, the azimuth angle monitoring value is 8 degrees and is greater than 6.89 degrees, the bending degree of the blade is normal, the 9-level wind-hour distance monitoring value is 5.8 meters and is less than 6 meters, the azimuth angle monitoring value is 6.67 degrees and is less than 6.89 degrees, the blade is seriously bent at the moment and is dangerous, the unit control system sends an alarm instruction, and the executing mechanism acquires a protective measure.
Referring to fig. 5, an embodiment of the present application provides a computer device for performing the method for monitoring headroom in the present application, the device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for monitoring headroom when executing the computer program.
In particular, the memory and the processor may be general-purpose memory and processor, which are not limited in particular, and the headroom monitoring method can be performed when the processor runs a computer program stored in the memory.
Corresponding to the clearance monitoring method in the present application, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to perform the steps of the clearance monitoring method.
In particular, the storage medium can be a general-purpose storage medium, such as a removable disk, a hard disk, etc., and the computer program on the storage medium can be executed to perform the above-mentioned clearance monitoring method when being executed.
In the embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other ways. The above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and there may be other divisions in actual implementation, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of systems or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the present disclosure, which should be construed in light of the above teachings. Are intended to be covered by the scope of the present application.

Claims (7)

1. A method for monitoring clearance, characterized in that it acts on a wind park comprising: the system comprises a unit control device, blades, a hub, a cabin, a tower and a distance measuring sensor; the tower is positioned on the ground, the engine room is arranged at the top of the tower, and the unit control device is arranged in the engine room; the engine room is connected with the generator and the hub; the blades are mounted on the hub; the distance measuring sensor is arranged at the intersection point of the longitudinal central axis of the tower barrel on the side surface of the cabin and the transverse central axis of the cabin; the distance measuring sensor rotates 360 degrees at the installation center position and transmits sensing signals along the circumference, the effective area covered by the transmission of the sensing signals is a distance measuring area, and the sensing signals are reflected when encountering the blades of the wind generating set;
the method comprises the following steps:
obtaining the minimum safe clearance L between the wind generating set blade and the longitudinal central axis of the towerSAnd minimum headroom sector azimuth θS；
Acquiring a minimum distance L and a minimum monitoring azimuth theta between a target area of a wind generating set blade and a longitudinal central axis of a tower; the blade target area is the full-length position of the blade from the blade tip to the distance 1/8 from the blade tip; the minimum monitoring azimuth angle theta is an angle of a sensing signal sent by the ranging sensor when the ranging sensor receives the reflected sensing signal in the ranging area;
judging the magnitude of the monitoring value and the safety value; when L is less than or equal to LSOr theta is less than or equal to thetaSWhen the two meet one, an alarm is sent out; otherwise, continuing monitoring.
2. The method of claim 1, wherein the target area of the wind turbine blade is determined based on a tower height and a blade length.
3. The method of claim 1, wherein the obtaining the minimum distance L between the target wind turbine generator set blade and the central longitudinal axis of the tower comprises:
receiving a reflected sensing signal of the blade in a ranging area through a ranging sensor; the reflected sensing signal is formed by reflecting the sensing signal when the sensing signal is reflected by the reflecting position of the blade after the distance measuring sensor emits the sensing signal towards the fan blade;
calculating the distance L between the distance measuring sensor and the reflection point of the sensing signal according to the transmission time and the speed of the sensing signalAB；
According to LABAnd monitoring the azimuth angle theta, and calculating the minimum distance L between the target wind generating set blade and the longitudinal central axis of the tower.
4. The method of claim 1, wherein obtaining the minimum safe clearance L between the target wind turbine generator set wind turbine blade and the central longitudinal axis of the tower is performedSAnd minimum headroom sector azimuth θSThe method comprises the following steps:
according to the height of the tower and the length of the blades, the minimum safe clearance L between the fan blades and the longitudinal central axis of the tower is calculated in a simulation modeSAnd minimum headroom sector azimuth θS。
5. A headroom monitoring apparatus, the apparatus comprising:
a first obtaining module: minimum safe clearance L used between wind generating set blade and tower drum longitudinal central axisSAnd minimum headroom sector azimuth θS；
A second obtaining module: the method comprises the steps of obtaining a minimum distance L and a minimum monitoring azimuth theta between a target area of a wind generating set blade and a longitudinal central axis of a tower;
a judging module: the monitoring device is used for judging the size of the monitoring value and the safety value; when L is less than or equal to LSOr theta is less than or equal to thetaSWhen the two meet at least one time, an alarm is sent out; otherwise, continuing monitoring.
6. An electronic device, comprising: a processor, a memory and a bus, the memory storing machine readable instructions executable by the processor, the processor and the memory communicating over the bus when the electronic device is operating, the machine readable instructions when executed by the processor performing the steps of the method of headroom monitoring of claims 1 to 5.
7. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, is adapted to carry out the steps of the method for headroom monitoring according to one of the claims 1 to 5.
CN202110181660.4A 2021-02-09 2021-02-09 Clearance monitoring method, device, equipment and storage medium Pending CN112814853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110181660.4A CN112814853A (en) 2021-02-09 2021-02-09 Clearance monitoring method, device, equipment and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110181660.4A CN112814853A (en) 2021-02-09 2021-02-09 Clearance monitoring method, device, equipment and storage medium

Publications (1)

Publication Number Publication Date
CN112814853A true CN112814853A (en) 2021-05-18

Family

ID=75865112

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110181660.4A Pending CN112814853A (en) 2021-02-09 2021-02-09 Clearance monitoring method, device, equipment and storage medium

Country Status (1)

Country Link
CN (1) CN112814853A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113250912A (en) * 2021-05-24 2021-08-13 郑州爱因特电子科技有限公司 Blade clearance monitoring method for wind turbine generator

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7227276B2 (en) * 2005-08-08 2007-06-05 Caiozza Joseph C Wind driven electric generator apparatus
US10247170B2 (en) * 2016-06-07 2019-04-02 General Electric Company System and method for controlling a dynamic system
CN110886679A (en) * 2019-11-20 2020-03-17 明阳智慧能源集团股份公司 Method for actively controlling blade clearance of wind generating set
CN110939549A (en) * 2019-11-18 2020-03-31 陈伟春 Blade clearance monitoring system and blade clearance monitoring method
CN111637024A (en) * 2020-05-25 2020-09-08 明阳智慧能源集团股份公司 Tower monitoring devices is prevented sweeping by wind generating set's blade
CN111963385A (en) * 2020-08-17 2020-11-20 上海电气风电集团股份有限公司 Wind generating set blade clearance monitoring device and method and wind generating set
CN112267980A (en) * 2020-10-26 2021-01-26 无锡风电设计研究院有限公司 Blade clearance monitoring system and method of wind generating set

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7227276B2 (en) * 2005-08-08 2007-06-05 Caiozza Joseph C Wind driven electric generator apparatus
US10247170B2 (en) * 2016-06-07 2019-04-02 General Electric Company System and method for controlling a dynamic system
CN110939549A (en) * 2019-11-18 2020-03-31 陈伟春 Blade clearance monitoring system and blade clearance monitoring method
CN110886679A (en) * 2019-11-20 2020-03-17 明阳智慧能源集团股份公司 Method for actively controlling blade clearance of wind generating set
CN111637024A (en) * 2020-05-25 2020-09-08 明阳智慧能源集团股份公司 Tower monitoring devices is prevented sweeping by wind generating set's blade
CN111963385A (en) * 2020-08-17 2020-11-20 上海电气风电集团股份有限公司 Wind generating set blade clearance monitoring device and method and wind generating set
CN112267980A (en) * 2020-10-26 2021-01-26 无锡风电设计研究院有限公司 Blade clearance monitoring system and method of wind generating set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113250912A (en) * 2021-05-24 2021-08-13 郑州爱因特电子科技有限公司 Blade clearance monitoring method for wind turbine generator
CN113250912B (en) * 2021-05-24 2022-04-22 郑州爱因特电子科技有限公司 Blade clearance monitoring method for wind turbine generator

Similar Documents

Publication Publication Date Title
EP1988284B1 (en) Method of operating a wind turbine and wind turbine
EP2486272B1 (en) Control method for a wind turbine
CN210396977U (en) Measurement structure for clearance between blades and tower barrel of wind turbine generator
CN110005581A (en) A kind of monitoring and control method of wind power generation unit blade and tower headroom
WO2018047564A1 (en) State monitoring device for wind power generating device, state monitoring system including same, and state monitoring method for wind power generating device
GB2465790A (en) System to measure load on a wind turbine blade
CN109653963B (en) Blade dynamic balance evaluation method, device and system
CN112761897B (en) Wind turbine generator blade monitoring method and device and wind driven generator
JP6351557B2 (en) Load measuring device calibration method, wind turbine blade load measuring system, and wind turbine
US10844842B2 (en) Abnormality monitoring apparatus and abnormality monitoring method for wind farm
JP2023500415A (en) Methods and apparatus for detecting yaw anomalies with respect to wind, and devices and storage media thereof
CN115095481B (en) Independent variable pitch adjusting method and system for wind driven generator
CN112814853A (en) Clearance monitoring method, device, equipment and storage medium
TWI729349B (en) Wind power generation device and wind power generation system
CN116221014A (en) Method, device, system and medium for controlling clearance of wind turbine generator based on laser radar
Kallesøe et al. Field validation of the stability limit of a multi MW turbine
CN106951977B (en) Construction method of wind speed prediction model based on wake effect
CN105320792A (en) Method for solving unbalance fault of impellers of wind turbine generator
WO2023165159A1 (en) Online indirect measurement system and method for pitching and yawing moments of wind energy or tidal current energy generator set
EP4345298A1 (en) Detection method for wind driven generator, and related apparatus
US20230026286A1 (en) Method for computer-implemented monitoring of a wind turbine
EP3237753B1 (en) A method of operating a wind turbine
CN209745564U (en) Load testing device for wind turbine generator
JP6865672B2 (en) Evaluation method and design method of wind power generation equipment
EP4339453A1 (en) Method for operating a wind turbine, control system and wind turbine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20210518

RJ01 Rejection of invention patent application after publication