CN114658604A - Method and system for improving availability of wind turbine generator through redundancy protection clearance - Google Patents
Method and system for improving availability of wind turbine generator through redundancy protection clearance Download PDFInfo
- Publication number
- CN114658604A CN114658604A CN202210174677.1A CN202210174677A CN114658604A CN 114658604 A CN114658604 A CN 114658604A CN 202210174677 A CN202210174677 A CN 202210174677A CN 114658604 A CN114658604 A CN 114658604A
- Authority
- CN
- China
- Prior art keywords
- time
- clearance
- data
- laser
- control
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012216 screening Methods 0.000 claims abstract description 26
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 238000007689 inspection Methods 0.000 claims abstract description 15
- 238000012795 verification Methods 0.000 claims description 27
- 230000001960 triggered effect Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000005457 optimization Methods 0.000 claims description 7
- 238000010248 power generation Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000011217 control strategy Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
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
- 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
- F03D7/043—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic
- F03D7/046—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic with learning or adaptive control, e.g. self-tuning, fuzzy logic or neural network
-
- 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
-
- 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
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)
- Physics & Mathematics (AREA)
- Artificial Intelligence (AREA)
- Evolutionary Computation (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Software Systems (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a method and a system for improving the availability of a wind turbine generator through redundancy protection clearance, which are mainly based on double laser radar sensors for redundancy control and data inspection intelligent control, fully utilize the relevance of laser on a time axis and a space axis for real-time inspection, and ensure that clearance monitoring is reliable and controllable, the clearance of the wind turbine generator is safe and controllable, and the wind turbine generator runs safely and stably under extreme weather or severe working conditions. The method carries out deep screening from the data angle, identifies accurate data from a source, eliminates interference data, and lays a cushion for subsequent clearance control; the method effectively checks the clearance control risk caused by the looseness of the clearance monitoring system, identifies and prejudges in advance, and preempts a window period for fault processing; the invention fully utilizes the complementation of two laser data beams, ensures the effective clearance monitoring in real time, effectively identifies the interference of severe weather on the clearance, carries out early warning by judging in advance, improves the availability of the unit and reduces the error judgment of faults.
Description
Technical Field
The invention relates to the technical field of wind power generation control, in particular to a method and a system for improving the availability of a wind turbine generator through redundancy protection headroom.
Background
With the comprehensive consideration of large-scale wind turbine generator, cost load and the like, the blades are developed towards the direction of being longer and lighter, the deformation of the blades in the large wind turbine generator is inevitably increased, and the dangerous distance of the blades close to the wall of the tower barrel is easy to appear under some extreme working conditions.
At present, mainstream manufacturers consider increasing a blade monitoring device to protect unit clearance and prevent the risk that a blade sweeps a tower, and technically have a laser direction, an image direction or a millimeter wave direction, but mostly use a laser radar to perform distance detection. For any kind of technology, including laser radar technology, to carry out distance detection, it is possible to appear that extreme weather visibility descends, and the distance measurement is inaccurate, or the monitoring itself appears the condition such as becoming flexible, trouble. This can result in the unit being in danger or the unit being forced to shut down, wasting a lot of good wind energy.
In order to solve the above problem, in the existing patent literature, optimization is mainly considered from the perspective or method of an instrument for measuring a distance and a supporting installation structure or a measuring method, and no means such as deep screening, redundancy protection control strategy, effective check and judgment of the reliability of a clearance monitoring system and the like are performed by using signal data from a control strategy, so that on the premise of ensuring the safety of a unit, the failure rate caused in the aspect of unit clearance is reduced, the availability of the unit is improved, and the generating efficiency of the unit is improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a method for improving the availability of a wind turbine generator through redundancy protection headroom, and ensures the reliability and safety of a headroom control strategy through data screening, redundancy protection, verification and other means on the basis of combining two laser ranging so as to improve the availability of the wind turbine generator.
A second object of the present invention is to provide a system for increasing the availability of wind turbines through redundant protection headroom.
The first purpose of the invention is realized by the following technical scheme: a method for improving the availability of a wind turbine generator through redundancy protection clearance is characterized in that redundancy control is carried out based on double laser radar sensors, data inspection intelligent control is carried out simultaneously, the relevance of laser on a time axis and a space axis is fully utilized for carrying out real-time inspection, the clearance monitoring is reliable and controllable under extreme weather or severe working conditions, the clearance of the wind turbine generator is safe and controllable, and the wind turbine generator runs safely and stably; which comprises the following steps:
1) the clearance data screening aims at eliminating data which is triggered by mistake and providing more effective and reliable accurate data for clearance control;
2) the laser radar sensor is checked and judged, and clearance data is checked through the double laser radar sensors:
a. and (3) space checking:
the spatial calibration is carried out through two laser beams with different laser installation angles, namely two laser beams with different angles, and the detected different distances S1And S2Converting the corresponding clearance value N according to the blade deformation curve1And N2And in real time to N1And N2Comparing if the two net null values differ by less than bMAXIf the space verification is passed, otherwise, the space verification fails;
b. time checking:
the time intervals of two laser beams passing through the blade in a rotating manner are different to check on the time axis, and the two laser beams for detection have time dislocation on the time axis when irradiating the blade, wherein the time dislocation is respectively a time value t1And t2And in real time for t1And t2Comparing if the two time values differ by less than TMAXIf the time check is passed, otherwise, the time check is failed;
through the space verification and the time verification, whether the clearance monitoring system is loosened or not can be judged, and foreknowledge and discovery are carried out in advance;
3) controlling radar selection: judging data of two beams of laser in real time, preferentially selecting one beam of laser to control, and if the double laser radar sensors fail, enabling the unit to enter a safety mode; wherein, the safe mode refers to: the angle of the blades of the unit is relatively increased, a control mode of clearance risk is avoided, the power curve is lost, the failure rate can be reduced, and grid-connected power generation of the unit is ensured;
based on the steps, the authenticity of the data can be effectively confirmed, and the reliability and the accuracy of clearance control can be effectively improved by controlling the data as the standard, so that the availability of the unit is improved.
Further, in step 1), the following screening conditions are added according to the data input by the laser radar sensor:
a. real-time blade angle of unit is less than DAngleMAX；
b. The real-time active power of the unit is more than PMAX；
c. The real-time impeller azimuth angle of the unit is greater than AMINAnd is less than AMAX；
d. Clearance distance is greater than SMINAnd is less than SMAX；
By the screening, the data which are triggered by mistake can be eliminated, and more effective and reliable and accurate data are provided for clearance control.
Further, in step 3), two laser data are judged in real time, and one laser is preferentially selected for control, specifically as follows:
a. controlling by using a 1# laser radar sensor through real-time data optimization;
b. when the 1# laser radar sensor fails or abnormal conditions occur, the 2# laser radar sensor is switched to control, and the two laser radar sensor controls can be switched with each other.
The second purpose of the invention is realized by the following technical scheme: a system for improving the availability of a wind turbine generator through redundancy protection clearance is characterized in that redundancy control is carried out based on double laser radar sensors, data inspection intelligent control is carried out simultaneously, the relevance of laser on a time axis and a space axis is fully utilized for carrying out real-time inspection, the clearance monitoring is reliable and controllable under extreme weather or severe working conditions, the unit clearance is safe and controllable, and the unit runs safely and stably; it includes:
the clearance data screening module is used for eliminating data which is triggered by mistake and providing more effective and reliable accurate data for clearance control;
sensor verification judgment module, passChecking clearance data of the double laser radar sensors, including space checking and time checking; wherein, the spatial check means: the spatial calibration is carried out through two laser beams with different laser installation angles, namely two laser beams with different angles, and the detected different distances S1And S2Converting the corresponding clearance value N according to the blade deformation curve1And N2And in real time to N1And N2Comparing if the two clear space values differ by less than bMAXIf the space verification is passed, otherwise, the space verification fails; the time check means that: the time intervals of two laser beams passing through the blade in a rotating manner are different to check on the time axis, and the two laser beams for detection have time dislocation on the time axis when irradiating the blade, wherein the time dislocation is respectively a time value t1And t2And in real time to t1And t2Comparing if the two time values differ by less than TMAXIf the time check is passed, otherwise, the time check is failed; through the space verification and the time verification, whether the clearance monitoring system is loosened or not can be judged, and foreknowledge and discovery are carried out in advance;
the control radar selection module is used for judging data of two beams of laser in real time, preferentially selecting one beam of laser to control, and if the double laser radar sensors fail, the unit enters a safety mode; wherein, the safe mode refers to: the angle of the blades of the generator set is relatively increased, a control mode of clearance risk is avoided, the power curve has loss, the failure rate can be reduced, and grid-connected power generation of the generator set is guaranteed.
Further, in the clearance data screening module, the following screening conditions are added according to data input by the laser radar sensor:
a. real-time blade angle of unit is less than DAngleMAX；
b. The real-time active power of the unit is more than PMAX；
c. The real-time impeller azimuth angle of the unit is greater than AMINAnd is less than AMAX；
d. Clearance greater than SMINAnd is less than SMAX；
By the screening, the data which are triggered by mistake can be eliminated, and more effective and reliable and accurate data are provided for clearance control.
Further, in the control radar selection module, through two bundles of laser data real-time judgments, a bundle of laser is selected preferentially to control, specifically as follows:
a. controlling by using a 1# laser radar sensor through real-time data optimization;
b. when the 1# laser radar sensor fails or abnormal conditions occur, the 2# laser radar sensor is switched to control, and the two laser radar sensor controls can be switched with each other.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. performing deep screening from the data angle, identifying accurate data from a source, effectively filtering the data, eliminating interference data, and laying a cushion for subsequent clearance control;
2. the relevance of laser on a time axis and a space axis is fully utilized for real-time inspection, so that the risk of clearance control caused by the looseness of a clearance monitoring system is effectively inspected, the clearance monitoring system is identified in advance, prejudgment is carried out in advance, and a window period is occupied for fault processing;
3. two bundles of laser data of make full use of are complementary, ensure in real time that the headroom monitoring is effective, effectively discern the interference in the aspect of bad weather to the headroom, judge in advance and early warn, improve the unit availability, reduce the fault misjudgement.
The following problems existing in the current mainstream headroom control can be solved by the means as follows:
1. the problems of clearance fault caused by error report of the unit under extreme weather conditions are solved;
2. the problem that the clearance monitoring system is loose and cannot be accurately detected is solved;
3. the problem of the clearance control is unfriendly, and the unit is not high in availability is solved.
Drawings
FIG. 1 is a schematic logic flow diagram of the method of the present invention.
Fig. 2 is a block diagram of headroom data screening.
Fig. 3 is a space check diagram (a unit side view).
Fig. 4 is a time chart (a unit front view).
Fig. 5 is a flow chart of laser radar selection control.
Fig. 6 is an architecture diagram of the system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Example 1
The embodiment discloses a method for improving the availability of a wind turbine generator through redundancy protection clearance, which is based on double laser radar sensors for redundancy control and data inspection intelligent control, fully utilizes the relevance of laser on a time axis and a space axis for real-time inspection, and ensures that clearance monitoring is reliable and controllable, the clearance of the generator is safe and controllable, and the generator runs safely and stably under extreme weather or severe working conditions; as shown in fig. 1, it comprises the following steps:
1) clearance data screening, data input by the laser radar sensor, as shown in fig. 2, adding the following screening conditions:
a. real-time blade angle D of unitAngleIs less than DAngleMAX；
b. The real-time active power P of the unit is greater than PMAX；
c. The real-time impeller azimuth A of the unit is larger than AMINAnd is less than AMAX；
d. The clearance detection distance S is greater than SMINAnd is less than SMAX；
The data which are triggered by mistake can be basically eliminated after the screening, and more effective and reliable and accurate data are provided for clearance control.
2) The laser radar sensor is checked and judged, and clearance data is checked through the double laser radar sensors:
a. spatial verification (see fig. 3):
the spatial calibration is carried out through two laser beams with different laser installation angles, namely two laser beams with different angles, and the detected different distances S1And S2Converting the corresponding clearance value N according to the blade deformation curve1And N2And in real time to N1And N2Comparing if the two clear space values differ by less than bMAXIf the space verification is passed, otherwise, the space verification fails;
b. time check (see fig. 4):
the time intervals of two laser beams passing through the blade in a rotating manner are different to check on the time axis, and certain time dislocation exists on the time axis when the two laser beams are detected to irradiate the blade, wherein the time dislocation is respectively a time value t1And t2And in real time to t1And t2Comparing if the difference between the two time values is less than TMAXIf the time check is passed, otherwise, the time check is failed;
through the space verification and the time verification, whether the clearance monitoring system is loose or not can be judged, and the condition can be predicted and found in advance.
3) Controlling radar selection
The data of the two laser beams are judged in real time, and one laser beam is preferentially selected for control, as shown in fig. 5, the specific process is as follows:
a. controlling by using a 1# laser radar sensor through real-time data optimization;
b. when the No. 1 radar fails or is in an abnormal condition, the No. 2 laser radar sensor is switched to control, and the control of the two laser radar sensors can be switched;
if the double laser radar sensors fail, the unit enters a safety mode; wherein, the safe mode refers to: the angle of the blades of the generator set is relatively increased, a control mode of clearance risk does not exist, the power curve has certain loss, the failure rate can be reduced, and grid-connected power generation of the generator set is guaranteed.
Based on the steps, the authenticity of the data can be basically and effectively confirmed, and the reliability and the accuracy of clearance control can be effectively improved by controlling based on the data, so that the availability of the unit is improved.
Example 2
The embodiment discloses a system for improving the availability of a wind turbine generator through redundancy protection clearance, which is based on double laser radar sensors for redundancy control and data inspection intelligent control at the same time, fully utilizes the relevance of laser on a time axis and a space axis for real-time inspection, and ensures that clearance monitoring is reliable and controllable, unit clearance is safe and controllable, and the unit runs safely and stably under extreme weather or severe working conditions; as shown in fig. 6, it includes the following functional modules:
the clearance data screening module is used for eliminating data which is triggered by mistake and providing more effective and reliable accurate data for clearance control;
the sensor checking and judging module checks clearance data of the double laser radar sensors, including space checking and time checking; wherein, the spatial check means: the spatial calibration is carried out through two laser beams with different laser installation angles, namely two laser beams with different angles, and the detected different distances S1And S2Converting the corresponding clearance value N according to the blade deformation curve1And N2And in real time to N1And N2Comparing if the two clear space values differ by less than bMAXIf the space verification is passed, otherwise, the space verification fails; the time check means that: the time intervals of the two laser beams passing through the blade in a rotating way are different to check the time axis, and the two laser beams detected have time dislocation on the time axis when irradiating the blade, wherein the time dislocation is the time value t1And t2And in real time to t1And t2Comparing if the two time values differ by less than TMAXIf the time check is passed, otherwise, the time check is failed; through the space verification and the time verification, whether the clearance monitoring system is loosened or not can be judged, and foreknowledge and discovery are carried out in advance;
the control radar selection module is used for judging data of two beams of laser in real time, preferentially selecting one beam of laser to control, and if the double laser radar sensors fail, the unit enters a safety mode; wherein, the safe mode is: the angle of the blades of the unit is relatively increased, a control mode of clearance risk is avoided, the power curve is lost, the failure rate can be reduced, and grid-connected power generation of the unit is guaranteed.
Further, in the clearance data screening module, the following screening conditions are added according to data input by the laser radar sensor:
a. the real-time blade angle of the unit is less than DAngleMAX；
b. The real-time active power of the unit is more than PMAX；
c. The real-time impeller azimuth angle of the unit is greater than AMINAnd is less than AMAX；
d. Clearance greater than SMINAnd is less than SMAX；
By the screening, the data which are triggered by mistake can be eliminated, and more effective and reliable and accurate data are provided for clearance control.
Further, in the control radar selection module, through two bundles of laser data real-time judgments, a bundle of laser is selected preferentially to control, specifically as follows:
a. controlling by using a 1# laser radar sensor through real-time data optimization;
b. when the 1# laser radar sensor fails or abnormal conditions occur, the 2# laser radar sensor is switched to control, and the two laser radar sensor controls can be switched with each other.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (6)
1. A method for improving the availability of a wind turbine generator through redundancy protection clearance is characterized in that the method is based on double laser radar sensors to carry out redundancy control and simultaneously carry out data inspection intelligent control, and fully utilizes the relevance of laser on a time axis and a space axis to carry out real-time inspection, so that the clearance monitoring is reliable and controllable under extreme weather or severe working conditions, the clearance of the wind turbine generator is safe and controllable, and the wind turbine generator runs safely and stably; which comprises the following steps:
1) clearance data screening, which aims to eliminate data triggered by mistake and provide more effective and reliable accurate data for clearance control;
2) the laser radar sensor is checked and judged, and clearance data is checked through the double laser radar sensors:
a. and (3) space checking:
the spatial calibration is carried out through two laser beams with different laser installation angles, namely two laser beams with different angles, and the detected different distances S1And S2Converting the corresponding clearance value N according to the blade deformation curve1And N2And in real time to N1And N2Comparing if the two clear space values differ by less than bMAXIf the space verification is passed, otherwise, the space verification fails;
b. time checking:
the time intervals of two laser beams passing through the blade in a rotating manner are different to check on the time axis, and the two laser beams for detection have time dislocation on the time axis when irradiating the blade, wherein the time dislocation is respectively a time value t1And t2And in real time to t1And t2Comparing if the two time values differ by less than TMAXIf the time check is passed, otherwise, the time check is failed;
through the space verification and the time verification, whether the clearance monitoring system is loosened or not can be judged, and foreknowledge and discovery are carried out in advance;
3) controlling radar selection: judging data of two beams of laser in real time, preferentially selecting one beam of laser to control, and if the double laser radar sensors fail, enabling the unit to enter a safety mode; wherein, the safe mode is: the angle of the blades of the unit is relatively increased, a control mode of clearance risk is avoided, the power curve is lost, the failure rate can be reduced, and grid-connected power generation of the unit is ensured;
based on the steps, the authenticity of the data can be effectively confirmed, and the reliability and accuracy of clearance control can be effectively improved by taking the data as the standard for control, so that the availability of the unit is improved.
2. The method for improving the availability of wind turbines through the redundancy protection headroom according to claim 1, wherein in step 1), the following screening conditions are added according to the data input by the lidar sensor:
a. real-time blade angle of unit is less than DAngleMAX；
b. The real-time active power of the unit is more than PMAX；
c. The real-time impeller azimuth angle of the unit is greater than AMINAnd is less than AMAX；
d. Clearance greater than SMINAnd is less than SMAX；
By the screening, data which are triggered by mistake can be eliminated, and more effective and reliable and accurate data are provided for clearance control.
3. The method for improving the availability of the wind turbine generator through the redundancy protection headroom as recited in claim 1, wherein in step 3), two laser data are determined in real time, and one laser is preferentially selected for control, specifically as follows:
a. controlling by using a 1# laser radar sensor through real-time data optimization;
b. when the No. 1 laser radar sensor fails or an abnormal condition occurs, the No. 2 laser radar sensor is switched to control, and the control of the two laser radar sensors can be switched mutually.
4. A system for improving the availability of a wind turbine generator through redundancy protection clearance is characterized in that the system is based on double laser radar sensors to carry out redundancy control and simultaneously carry out data inspection intelligent control, and fully utilizes the relevance of laser on a time axis and a space axis to carry out real-time inspection, so that the clearance monitoring is reliable and controllable under extreme weather or severe working conditions, the clearance of the wind turbine generator is safe and controllable, and the wind turbine generator runs safely and stably; it includes:
the clearance data screening module is used for eliminating data which is triggered by mistake and providing more effective and reliable accurate data for clearance control;
the sensor checking and judging module checks clearance data of the double laser radar sensors, including space checking and time checking; wherein, the spatial check means: the spatial calibration is carried out by two laser beams with different laser installation angles, namely two laser beams with different angles, and the different distances S for detection are different1And S2Converting the corresponding clearance value N according to the blade deformation curve1And N2And in real time to N1And N2Comparing if the two clear space values differ by less than bMAXIf the space verification is passed, otherwise, the space verification fails; the time check means that: the time intervals of two laser beams passing through the blade in a rotating manner are different to check on the time axis, and the two laser beams for detection have time dislocation on the time axis when irradiating the blade, wherein the time dislocation is respectively a time value t1And t2And in real time for t1And t2Comparing if the two time values differ by less than TMAXIf the time check is passed, otherwise, the time check is failed; through the space verification and the time verification, whether the clearance monitoring system is loosened or not can be judged, and foreknowledge and discovery are carried out in advance;
the control radar selection module is used for judging data of two beams of laser in real time, preferentially selecting one beam of laser to control, and if the double laser radar sensors fail, the unit enters a safety mode; wherein, the safe mode refers to: the angle of the blades of the unit is relatively increased, a control mode of clearance risk is avoided, the power curve is lost, the failure rate can be reduced, and grid-connected power generation of the unit is guaranteed.
5. The system of claim 1, wherein the clearance data screening module is configured to add the following screening conditions to the data inputted from the lidar sensor:
a. real-time blade angle of unit is less than DAngleMAX；
b. The real-time active power of the unit is more than PMAX；
c. The real-time impeller azimuth angle of the unit is greater than AMINAnd is smallIn AMAX；
d. Clearance distance is greater than SMINAnd is less than SMAX；
By the screening, data which are triggered by mistake can be eliminated, and more effective and reliable and accurate data are provided for clearance control.
6. The system of claim 1, wherein in the control radar selection module, the two laser data are judged in real time, and a laser beam is preferentially selected for control, specifically as follows:
a. controlling by using a 1# laser radar sensor through real-time data optimization;
b. when the 1# laser radar sensor fails or abnormal conditions occur, the 2# laser radar sensor is switched to control, and the two laser radar sensor controls can be switched with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210174677.1A CN114658604A (en) | 2022-02-24 | 2022-02-24 | Method and system for improving availability of wind turbine generator through redundancy protection clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210174677.1A CN114658604A (en) | 2022-02-24 | 2022-02-24 | Method and system for improving availability of wind turbine generator through redundancy protection clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114658604A true CN114658604A (en) | 2022-06-24 |
Family
ID=82026533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210174677.1A Pending CN114658604A (en) | 2022-02-24 | 2022-02-24 | Method and system for improving availability of wind turbine generator through redundancy protection clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114658604A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116085198A (en) * | 2023-04-10 | 2023-05-09 | 南京牧镭激光科技股份有限公司 | Fan master control method based on three-wire laser headroom radar |
| CN116085193A (en) * | 2023-04-06 | 2023-05-09 | 南京牧镭激光科技股份有限公司 | Fan master control clearance control method based on multi-source data |
-
2022
- 2022-02-24 CN CN202210174677.1A patent/CN114658604A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116085193A (en) * | 2023-04-06 | 2023-05-09 | 南京牧镭激光科技股份有限公司 | Fan master control clearance control method based on multi-source data |
| CN116085198A (en) * | 2023-04-10 | 2023-05-09 | 南京牧镭激光科技股份有限公司 | Fan master control method based on three-wire laser headroom radar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114658604A (en) | Method and system for improving availability of wind turbine generator through redundancy protection clearance | |
| CN102762852B (en) | For the protection of the method and apparatus of wind turbine from fatigue damage | |
| CN112267980B (en) | Blade clearance monitoring system and method of wind generating set | |
| CN111555716B (en) | Method, device, equipment and storage medium for determining working state of photovoltaic array | |
| EP2956663B1 (en) | Detecting blade structure abnormalities | |
| CN105464912B (en) | A kind of method and apparatus of wind generator set blade icing detection | |
| EP2329141B2 (en) | Pitch control system | |
| US20130255363A1 (en) | Detecting a Wake Situation in a Wind Farm | |
| CN102782315A (en) | Method and apparatus for protecting wind turbines from damage | |
| KR101631267B1 (en) | A Photovoltaic Modular Abnormal Condition Effective Diagnosis System and Method thereof | |
| DK2667023T3 (en) | Control of a wind energy system | |
| CN102418661A (en) | Fault diagnosis method for yaw system for wind driven generator | |
| US20220252051A1 (en) | Determination of wind parameter values for use in wind turbine control systems | |
| CN108801506A (en) | Semi-submersible type bottom platform stress safety prewarning monitoring system and method | |
| KR102053547B1 (en) | Apparatus and method for detecting fault section | |
| CN116545377A (en) | Phase-locked technology-based photovoltaic module monitoring method | |
| US9644958B2 (en) | Method for the validation of solar altitude-dependent measured values of several measurement channels | |
| CN111090133B (en) | Rainfall radar data quality control method | |
| CN113217298A (en) | Multi-sensor fusion wind driven generator tower clearance monitoring radar device and method | |
| KR102448187B1 (en) | the fault detection methods of PV panel using unit vector analysis for I-V curve | |
| CN112145369B (en) | Fault diagnosis method and device for wind measuring system of wind generating set | |
| CN110100094A (en) | Measure the transducer current in wind turbine generator | |
| US20230089046A1 (en) | Method for controlling wind turbines of a wind park using a trained ai model | |
| CN110529331A (en) | A kind of turbine-generator units governor head adaptation function control system | |
| CN216665824U (en) | Blade surface stress monitoring system |
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 |