CN111608856A - Control system, device and method of wind turbine generator and storage medium - Google Patents
Control system, device and method of wind turbine generator and storage medium Download PDFInfo
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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
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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
- F03D7/0264—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
- F03D7/0268—Parking or storm protection
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
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- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/32—Wind speeds
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- 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
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Abstract
The invention relates to the technical field of wind turbines, in particular to a control system, a method, a device and a storage medium of a wind turbine, aiming at solving the problem of potential safety hazard in the prior art, the technical scheme is that an image acquisition unit is used for acquiring image information of a rotating shaft in real time and sending the image information to a master control center; the main control center obtains the outline of the rotating shaft according to an image outline extraction algorithm and generates a rotating shaft coordinate axis, the main control center sends a rotating shaft coordinate value corresponding to the fracture of the rotating shaft to the image analysis unit for storage, and the image analysis unit generates an angle threshold value according to all the stored rotating shaft coordinate values and sends the angle threshold value to the main control center; the main control center is used for comparing the received rotating shaft coordinate value with the rotating shaft standard coordinate value and judging whether the angle of the rotating shaft deviates or not; the main control center is used for controlling the wind generating set to stop working when the deviation angle value of the rotating shaft is larger than a preset angle standard value, and the safety performance of the wind generating set is improved conveniently.
Description
Technical Field
The invention relates to the technical field of wind turbines, in particular to a control system, a control device, a control method and a storage medium of a wind turbine.
Background
At present, among the development of various renewable energy sources, the development of wind power generation has the highest potential, the power generation cost is gradually reduced, and the technology is gradually matured, so that a new industry is formed, and the new energy source power generation with the highest relative growth speed in the power system structure is formed. Therefore, the method has important significance for the research of wind power generation technology.
In a wind generating set, both the hub and the shaft are important components. Specifically, the hub is used for connecting the blade and the rotating shaft, so that the rotating shaft rotates along with the blade through the hub. The hub, blades, and shaft cooperate to convert wind energy into mechanical energy.
Because the environment for operating the wind driven generator is very severe, the requirement on the load capacity of the rotating shaft is high. And of the various failure modes of the shaft, fatigue fracture is most common. When the rotating shaft of the wind generating set is in fatigue fracture, the wind generating set is easily damaged, and potential safety hazards exist.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide a control system of a wind turbine generator, which can facilitate the improvement of the safety performance of the wind turbine generator.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a control system of wind turbine generator system, includes main control center and monitoring module, monitoring module includes image detection module, image detection module includes:
the image acquisition unit is connected with the main control center and is used for acquiring the image information of the rotating shaft in real time and sending the image information to the main control center; the main control center acquires the contour of the rotating shaft according to an image contour extraction algorithm and generates a rotating shaft coordinate axis, the rotating shaft coordinate axis takes the top end of the rotating shaft contour as an X axis and takes one end of the top end of the rotating shaft contour as an original point, and the main control center presets a point of the rotating shaft contour on the X axis and far away from the original point as a rotating shaft standard coordinate value;
the image analysis unit is connected with the main control center, the main control center sends the corresponding rotating shaft coordinate value when the rotating shaft is broken to the image analysis unit for storage, and the image analysis unit generates an angle threshold value according to all the stored rotating shaft coordinate values and sends the angle threshold value to the main control center;
the main control center is used for comparing the received rotating shaft coordinate value with the rotating shaft standard coordinate value, judging whether the angle of the rotating shaft deviates or not, and generating a type of information when the angle of the rotating shaft deviates, wherein the type of information comprises the angle value of the deviation of the rotating shaft;
the main control center is used for controlling the wind generating set to stop working when the deviation angle value of the rotating shaft is larger than a preset angle standard value, wherein the angle standard value is smaller than an angle threshold value.
Through adopting above-mentioned technical scheme, the image of pivot can be gathered in real time to the image acquisition unit, and when the angle that the skew takes place for the pivot was greater than the angle threshold value, the wind turbine generator system stop work that the master control center control corresponds can effectively avoid the too big fracture of often causing the pivot of angle skew, can in time handle the wind turbine generator system to cause the damage to the wind turbine generator system when can avoiding the pivot fracture, and then can effectively improve the security performance of wind turbine generator system.
The present invention in a preferred example may be further configured to: the monitoring module further comprises an offset number detection module, and the offset number detection module comprises:
the offset frequency detection unit is connected with the main control center and is used for acquiring image information of the rotating shaft in real time and sending the image information to the main control center;
the primary offset frequency analysis unit is connected with the main control center, and the main control center is used for receiving the image information sent by the main control center, comparing the image information with preset image standard information, judging whether the angle of the rotating shaft is offset or not, generating a type of image information when the angle of the rotating shaft is judged to be offset, and sending the type of image information to the main control center;
the N-level offset frequency analysis unit is connected with the main control center and used for receiving the image information sent by the main control center, comparing the image information with the N-1 type image information, judging whether the angle of the rotating shaft is offset or not, generating N type image information when the angle of the rotating shaft is judged to be offset, and sending the N type image information to the main control center;
the main control center is used for judging the frequency of the rotating shaft offsetting according to the frequency of receiving the image information when the rotating shaft breaks and generating a rotating shaft offsetting frequency threshold value w, and the main control center is used for controlling the corresponding wind turbine generator to stop working when the frequency of the rotating shaft offsetting reaches w-1.
By adopting the technical scheme, the offset frequency detection unit can detect the frequency of the offset of the rotating shaft angle, when the frequency of the offset of the rotating shaft angle is greater than the threshold value w of the offset frequency of the rotating shaft, the master control center controls the corresponding wind turbine generator to stop working, the fracture of the rotating shaft caused by the excessive frequency of the offset of the rotating shaft is effectively avoided, and the safety performance of the wind turbine generator can be further improved.
The present invention in a preferred example may be further configured to: the monitoring module further comprises a wind speed detection module, and the wind speed detection module comprises:
the wind speed detection unit is connected with the main control center, and is used for acquiring wind speed information of the position of the wind turbine generator in real time and sending the wind speed information to the main control center, and the main control center is used for extracting a corresponding wind speed value according to the wind speed information;
the wind speed analysis unit is connected with a main control center, the main control center is used for sending corresponding wind speed information to the wind speed analysis unit for storage when the angle of the rotating shaft deviates, and the wind speed analysis unit generates a wind speed threshold value according to all stored wind speed information and sends the wind speed threshold value to the main control center;
the main control center is used for controlling the wind generating set to stop working when the wind speed value is larger than a preset wind speed standard value, wherein the preset wind speed standard value is smaller than a wind speed threshold value.
By adopting the technical scheme, the wind speed detection unit detects the wind speed in real time, and when the wind speed value is greater than the wind speed threshold value, the main control center controls the corresponding wind turbine generator to stop working, so that the wind turbine generator can be effectively prevented from working at a high wind speed and damaging the wind turbine generator, and the safety performance of the wind turbine generator can be further improved.
The second objective of the present invention is to provide a control method for a wind turbine generator, which can improve the safety performance of the wind turbine generator.
The second purpose of the invention is realized by the following technical scheme:
a control method of a wind turbine generator comprises a single-point angle detection method A1, wherein the single-point angle detection method A1 comprises the following steps:
a101, obtaining a threshold: acquiring the contour of a rotating shaft according to an image contour extraction algorithm, generating a coordinate axis of the rotating shaft, and acquiring preset standard coordinate values (x 1, y 1) of the rotating shaft, an angle standard value b and an angle threshold value a, wherein the angle standard value b is smaller than the angle threshold value a;
the rotating shaft coordinate axis takes the top end of the rotating shaft contour as an X axis and takes one end of the top end of the rotating shaft contour as an origin; the coordinate value of the rotating shaft is a point of the rotating shaft profile on the X axis and far away from the original point;
a102, detection data: detecting image information of the rotating shaft in real time;
a103, obtaining coordinate values: obtaining a coordinate value (x 2, y 2) of a rotating shaft;
a104, primary judgment: comparing the coordinate values (x 2, y 2) of the rotating shaft with the standard coordinate values (x 1, y 1) of the rotating shaft, judging whether the angle of the rotating shaft deviates or not, and if so, calculating the angle c of the deviation of the rotating shaft according to a calculation formula;
wherein the calculation formula is c = arcsin (y 2/x 1);
a105, secondary judgment: when the deviation angle c of the rotating shaft is larger than the angle standard value b, the step A6 is carried out;
and A106, controlling the wind turbine generator to stop working.
By adopting the technical scheme, the wind turbine generator is controlled to stop working according to the offset angle of the rotating shaft, so that the rotating shaft can be effectively prevented from being broken, and the safety performance of the wind turbine generator can be further improved.
The present invention in a preferred example may be further configured to: further comprising a multipoint angle detection method a2, the multipoint angle detection method a2 comprising:
a201, acquiring a preset number threshold m, a first tolerance range value k1 and a second tolerance range value k 2;
a202, obtaining X values and Y values of the coordinate values of n points on the X axis, respectively comparing the X values and the Y values with the corresponding X values and the corresponding Y values of the second standard coordinate values, judging whether the quantity of the difference values between the X values of the coordinate values of the n points and the corresponding X values of the second standard coordinate values, which are not within the first tolerance range value k1, is larger than a quantity threshold value m (m < n), and judging whether the difference value between the Y value of the coordinate values of the n points and the Y value of the corresponding second standard coordinate value is not larger than a quantity threshold value m (m < n) or not at the first tolerance range value k2, when the number of the difference values between the X values of the n point coordinate values and the X values of the corresponding second standard coordinate values which are not within the first tolerance range value k1 and the number of the difference values between the Y values of the n point coordinate values and the Y values of the corresponding second standard coordinate values which are not within the first tolerance range value k2 are both greater than the number threshold m, entering step a 203;
and A203, controlling the wind turbine generator to stop working.
By adopting the technical scheme, the offset of the rotating shaft is further detected, so that the rotating shaft can be further prevented from being broken, and the safety performance of the wind turbine generator is further improved.
The present invention in a preferred example may be further configured to: the method also comprises a deviation number detection method B, wherein the deviation number detection method B comprises the following steps:
b1, acquiring a preset offset time threshold value w;
b2, detecting the offset times of the rotating shaft angle in real time;
b3, when the number of times of the deviation of the rotating shaft angle reaches w-1, entering the step B4;
and B4, controlling the wind turbine generator to stop working.
By adopting the technical scheme, the fracture of the rotating shaft caused by the excessive times of the deviation of the rotating shaft can be avoided by detecting the times of the deviation of the rotating shaft angle, and the safety performance of the rotating shaft and the wind turbine generator set is further improved.
The present invention in a preferred example may be further configured to: the wind speed detection method C is further included, and comprises the following steps:
c1, acquiring a wind speed threshold value C and a preset wind speed standard value d, wherein the preset wind speed standard value d is less than the wind speed threshold value C;
c2, detecting the wind speed value of the position of the wind turbine generator in real time;
c3, when the wind speed value is larger than the preset wind speed standard value d, entering the step C4;
and C4, controlling the wind turbine generator to stop working.
By adopting the technical scheme, the wind speed at the position of the wind turbine generator can be detected, so that the damage to the rotating shaft caused by overlarge wind speed can be avoided, and the safety performance of the wind turbine generator can be further improved.
The third objective of the present invention is to provide a control device for a wind turbine generator set based on the control method for a wind turbine generator set, which can facilitate to improve the safety performance of the wind turbine generator set.
The third purpose of the invention is realized by the following technical scheme:
a control device of a wind turbine generator comprises a processor, wherein the wind turbine generator comprises a rotating shaft, and one end of the rotating shaft is connected with a hub;
the shell is provided with a camera facing the rotating shaft, and a controller of the camera is connected with the processor;
the processor is provided with an alarm which is connected with the processor.
The wind speed sensor is connected with the processor and used for detecting the wind speed of the position of the wind turbine generator in real time.
By adopting the technical scheme, the camera collects the image information of the rotating shaft in real time and sends the image information to the processor, the processor judges the angle of the rotating shaft deviating according to the control method of the wind turbine generator, and when the angle value of the rotating shaft deviating is larger than the preset angle value, the alarm gives an alarm to remind a worker at the main control center to process in time. Meanwhile, the wind turbine generator stops working, the rotating shaft can be effectively prevented from being broken, and the safety performance of the wind turbine generator can be improved.
It is a fourth object of the present invention to provide a computer-readable storage medium capable of storing a corresponding program, which facilitates to improve the safety performance of a wind turbine generator set. .
The fourth object of the invention is realized by the following technical scheme:
a computer readable storage medium storing a computer program that can be loaded by a processor and executed to perform any of the methods described above.
By adopting the technical scheme, corresponding programs can be stored, and the safety performance of the wind generating set is convenient to improve.
In summary, the invention includes at least one of the following beneficial technical effects:
1. through the arrangement of the image acquisition unit and the image analysis unit, the fracture of the rotating shaft caused by the overlarge offset angle of the rotating shaft is effectively avoided, and the wind turbine generator can be processed in time, so that the wind turbine generator can be prevented from being damaged when the rotating shaft is fractured, and the safety performance of the wind turbine generator can be effectively improved;
2. through the setting of skew number of times detecting element, one-level skew number of times analysis unit and N level skew number of times analysis unit, effectively avoid the pivot to take place the number of times of skew and cause the fracture of pivot, and then can further improve wind turbine generator's security performance.
Drawings
Fig. 1 is a schematic structural diagram of a wind turbine generator according to a first embodiment of the present invention;
FIG. 2 is a cross-sectional view of a wind turbine generator shown in accordance with an embodiment of the present invention;
FIG. 3 is a block diagram of a wind turbine generator according to a first embodiment of the present invention;
fig. 4 is a block diagram of a control system of a wind turbine generator according to a second embodiment of the present invention;
fig. 5 is another structural block diagram of the control system of the wind turbine generator according to the second embodiment of the present invention.
In the figure, 1, a wind turbine generator; 2. a tower; 3. a housing; 4. a generator set; 5. a hub; 6. a blade; 7. a rotating shaft; 8. a camera; 9. an alarm; 10. a wind speed sensor; 11. a master control center; 12. a monitoring module; 13. an image detection module; 131. an image acquisition unit; 132. an image analysis unit; 14. a deviation frequency detection module; 141. an offset number acquisition unit; 142. a primary offset frequency analysis unit; 143. an N-level offset frequency analyzing unit; 15. a wind speed detection module; 151. a wind speed detection unit; 152. and a wind speed analysis unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1 and 2, a control system of a wind turbine generator includes a main control center 11 and a monitoring module 12, where the monitoring module 12 includes an image detection module 13, an offset number detection module 14, and a wind speed detection module 15.
Referring to fig. 1 and 2, the image detection module 13 includes an image acquisition unit 131 and an image analysis unit 132. The image acquisition unit 131 is connected to the main control center 11 and is configured to acquire image information of the rotating shaft of the wind turbine generator 1 in real time and send the image information to the main control center 11 for storage, the main control center 11 acquires image information of the rotating shaft in a normal state from the image information stored in history, and acquires the contour of the rotating shaft according to an image contour extraction algorithm and the acquired image information and generates a standard coordinate axis of the rotating shaft, specifically, the standard coordinate axis of the rotating shaft takes a line at the top of the contour of the rotating shaft as an X-axis and any endpoint of the line at the top of the contour of the rotating shaft as an origin.
And acquiring coordinates of an endpoint of the line at the top of the rotating shaft contour, which is far away from the origin, according to the rotating shaft standard coordinate axis, and storing the coordinates in the main control center 11 as preset rotating shaft standard coordinate values (x 1, y 1).
Referring to fig. 2, the image detection unit 131 collects image information of the rotating shaft in real time and sends the image information to the main control center 11, the main control center 11 obtains a coordinate value (x 2, y 2) of the rotating shaft of an end point of a line at the top of the rotating shaft profile far from the original point according to an image profile extraction algorithm, compares the coordinate value (x 2, y 2) of the rotating shaft with a standard coordinate value (x 1, y 1) of the rotating shaft, determines whether the angle of the rotating shaft is deviated, and generates a type of information if the angle of the rotating shaft is judged to be the deviation, the type of information includes an angle value of the rotating shaft deviation, compares the angle value c of the rotating shaft deviation with a preset angle standard value b, and when the angle value c of the rotating shaft deviation is greater than the angle. Specifically, the angle standard value b is smaller than the angle threshold value a.
Referring to fig. 2, it should be noted that the manner of obtaining the angle threshold value a is as follows: when the spindle is broken, the main control center 11 sends the coordinate values (x 2, y 2) of the spindle to the image analysis unit 132 for storage, so that the image analysis unit 132 stores a large number of spindle coordinate values (x 2, y 2) corresponding to the broken spindle. When a new spindle is broken, the corresponding spindle coordinate values (x 2, y 2) are stored in the image analysis unit 132, and then the image analysis unit 132 generates an angle threshold a according to all currently stored spindle coordinate values (x 2, y 2) and sends the angle threshold a to the main control center 11.
Referring to fig. 2, the calculation method for obtaining the angle value c of the rotating shaft offset is as follows: the preset standard coordinate values of the rotating shaft are (x 1, y 1), the main control center 11 obtains the profile of the rotating shaft according to the image profile extraction algorithm, generates the coordinate values of the rotating shaft which are (x 2, y 2), compares the standard coordinate values of the rotating shaft which are (x 1, y 1) with the coordinate values of the rotating shaft which are (x 2, y 2), judges whether the angle of the grabbing rotating shaft deviates, and if the standard coordinate values of the grabbing rotating shaft deviate, calculates the angle c of the rotating shaft deviation according to a calculation formula, wherein the calculation formula is c = arcsin (y 2/x 1). And sending the angle c of the deviation of the rotating shaft to a main control center 11, wherein the main control center 11 is used for judging whether c is greater than an angle standard value b, and if so, the main control center 11 controls the wind turbine generator 1 to stop working.
Referring to fig. 2, while the coordinate values (X2, y 2) of the rotating shaft are obtained, the main control center 11 obtains the coordinate values of n points on the X axis, and compares the coordinate values of the n points with a preset first standard coordinate value, where the preset first standard coordinate value is a second standard coordinate value of a corresponding point on the X axis on the standard coordinate axis of the rotating shaft.
Referring to fig. 2, a number threshold m, a first tolerance range value k1 and a second tolerance range value k2 are preset in the main control center 11, the main control center 11 compares the X value and the Y value of the coordinate values of n points on the X axis with the X value and the Y value of the corresponding second standard coordinate value, respectively, determines whether the number of the difference between the X value of the coordinate values of n points and the X value of the corresponding second standard coordinate value is not in the first tolerance range value k1 but is greater than the number threshold m (m < n), determines whether the number of the difference between the Y value of the coordinate values of n points and the Y value of the corresponding second standard coordinate value is not in the first tolerance range value k2 but is greater than the number threshold m (m < n), and when the number of the difference between the X value of the coordinate values of n points and the X value of the corresponding second standard coordinate value is not in the first tolerance range value k1 and the number of the difference between the Y value of the coordinate values of n points and the corresponding second standard coordinate value are not in the first tolerance range value k2 but is greater than the number threshold And m, the main control center 11 controls the wind turbine generator 1 to stop working.
Referring to fig. 2, the offset frequency detection module 14 includes an offset frequency acquisition unit 141, a first-stage offset frequency analysis unit 142, and an N-stage offset frequency analysis unit 143.
Referring to fig. 2, the offset number acquiring unit 141 is connected to the main control center 11 and is configured to acquire image information of the rotating shaft in real time. The primary offset frequency analyzing unit 142 is connected to the main control center 11, and the primary offset frequency analyzing unit 142 is configured to receive image information sent by the main control center 11, compare the image information with preset image standard information, determine whether an angle of a rotating shaft is offset, generate a type of image information if the angle is determined to be offset, and send the type of image information to the main control center 11.
Referring to fig. 2, the N-level shift number analyzing unit 143 is connected to the main control center 11, and the N-level shift number analyzing unit 143 is configured to receive the image information sent by the main control center 11, compare the image information with the N-1 type image information, determine whether the angle of the rotating shaft is shifted, generate N type image information if the angle is determined to be shifted, and send the N type image information to the main control center 11. The main control center 11 is used for controlling the corresponding wind turbine generator 1 to stop working when the number of times of the deviation of the rotating shaft reaches w-1.
It should be noted that the main control center 11 is configured to determine the number of times of the rotation shaft shifting according to the number of times of receiving the image information when the rotation shaft is broken, and generate the rotation shaft shifting number threshold w.
Referring to fig. 2, the wind speed detection module 15 includes a wind speed detection unit 151 and a wind speed analysis unit 152. The wind speed detection unit 151 is connected with the main control center 11 and is used for acquiring wind speed information of the wind turbine generator 1 in real time and sending the wind speed information to the main control center 11, and the main control center 11 is used for extracting a corresponding wind speed value according to the wind speed information.
Referring to fig. 2, it should be noted that the wind speed analysis unit 152 is connected to the main control center 11, and the main control center 11 is configured to send the wind speed information corresponding to the deviation of the rotation axis angle to the wind speed analysis unit 152 for storage, so that the wind speed analysis unit 152 stores a large amount of wind speed information when the rotation axis angle is deviated, and after the wind speed information when a new rotation axis angle is deviated is stored in the wind speed analysis unit 152, the wind speed analysis unit 152 may take the minimum value according to all currently stored wind speed information to generate the wind speed threshold d and send the wind speed threshold d to the main control center 11.
Referring to fig. 2, a wind speed standard value f is preset in the main control center 11, where the relationship between the wind speed standard value f and the wind speed threshold value d is f = xd, and x < 1. When the wind speed value acquired by the wind speed detection unit 151 is greater than the wind speed standard value f, the main control center 11 controls the corresponding wind turbine generator 1 to stop working. When the wind speed value collected by the wind speed detection unit 151 is less than the wind speed standard value within the continuous set time, the frequency of the deviation of the angle of the rotating shaft does not reach w-1, and the angle c of the deviation of the rotating shaft 7 is less than the angle standard value b, the main control center 11 controls the corresponding wind turbine generator 1 to start. When the frequency of the deviation of the rotating shaft reaches w-1 or the angle c of the deviation of the rotating shaft is greater than the angle standard value b, the main control center 11 controls the corresponding wind turbine generator 1 to stop working.
Example two:
a control method of a wind turbine generator comprises a single-point angle detection method A1, a multi-point angle detection method A2, an offset frequency detection method B and a wind speed detection method C;
the single-point angle detection method a1 includes:
a101, obtaining a threshold: acquiring the contour of a rotating shaft according to an image contour extraction algorithm, generating a coordinate axis of the rotating shaft, and acquiring preset standard coordinate values (x 1, y 1) of the rotating shaft, an angle standard value b and an angle threshold value a, wherein the angle standard value b is smaller than the angle threshold value a;
the rotating shaft coordinate axis takes the top end of the rotating shaft contour as an X axis and takes one end of the top end of the rotating shaft contour as an origin; the coordinate value of the rotating shaft is a point of the rotating shaft profile on the X axis and far away from the original point;
a102, detection data: detecting image information of the rotating shaft in real time;
a103, obtaining coordinate values: obtaining a coordinate value (x 2, y 2) of a rotating shaft;
a104, primary judgment: comparing the coordinate values (x 2, y 2) of the rotating shaft with the standard coordinate values (x 1, y 1) of the rotating shaft, judging whether the angle of the rotating shaft deviates or not, and if so, calculating the angle c of the deviation of the rotating shaft according to a calculation formula;
wherein the calculation formula is c = arcsin (y 2/x 1);
a105, secondary judgment: when the deviation angle c of the rotating shaft is larger than the angle standard value b, the step A6 is carried out;
and A106, controlling the wind turbine generator to stop working.
The multipoint angle detection method a2 includes:
a201, acquiring a preset number threshold m, a first tolerance range value k1 and a second tolerance range value k 2;
a202, obtaining X values and Y values of the coordinate values of n points on the X axis, respectively comparing the X values and the Y values with the corresponding X values and the corresponding Y values of the second standard coordinate values, judging whether the quantity of the difference values between the X values of the coordinate values of the n points and the corresponding X values of the second standard coordinate values, which are not within the first tolerance range value k1, is larger than a quantity threshold value m (m < n), and judging whether the difference value between the Y value of the coordinate values of the n points and the Y value of the corresponding second standard coordinate value is not larger than a quantity threshold value m (m < n) or not at the first tolerance range value k2, when the number of the difference values between the X values of the n point coordinate values and the X values of the corresponding second standard coordinate values which are not within the first tolerance range value k1 and the number of the difference values between the Y values of the n point coordinate values and the Y values of the corresponding second standard coordinate values which are not within the first tolerance range value k2 are both greater than the number threshold m, entering step a 203;
and A203, controlling the wind turbine generator to stop working.
The offset number detection method B includes:
b1, acquiring a preset offset time threshold value w;
b2, detecting the offset times of the rotating shaft angle in real time;
b3, when the number of times of the deviation of the rotating shaft angle reaches w-1, entering the step B4;
and B4, controlling the wind turbine generator to stop working.
The wind speed detection method C comprises the following steps:
c1, acquiring a wind speed threshold value C and a preset wind speed standard value d, wherein the preset wind speed standard value d is less than the wind speed threshold value C;
c2, detecting the wind speed value of the position of the wind turbine generator in real time;
c3, when the wind speed value is larger than the preset wind speed standard value d, entering the step C4;
and C4, controlling the wind turbine generator to stop working.
Example three:
referring to fig. 3 and 4, the control device for the wind turbine generator disclosed by the invention comprises a processor, the wind turbine generator 1 comprises a tower 2, a shell 3 arranged above the tower 2, a generator set 4 arranged in the shell 3, a hub 5 and blades 6 arranged on the hub 5, and the generator set 4 is in wireless communication connection with the processor. An output shaft of the generator set 4 is connected with a rotating shaft 7, and one end of the rotating shaft 7 extends out of the shell 3 and is fixedly connected with the hub 5.
Referring to fig. 3 and 4, the processor can execute the control method of the wind turbine generator according to the second embodiment. It should be noted that the housing 3 is provided with a camera 8 facing the rotating shaft 7, a controller of the camera 8 is connected to the processor, an alarm 9 (see fig. 5) is provided at a position where the processor is located, and the alarm 9 is connected to the processor. The camera 8 is used for obtaining image information of the rotating shaft 7 and sending the image information to the processor, and when the offset angle of the rotating shaft 7 is larger than the angle standard value b, the alarm 9 gives an alarm.
Referring to fig. 3 and 4, a wind speed sensor 10 is disposed on the housing 3, and the wind speed sensor 10 is connected to the processor and is configured to detect a wind speed at a position where the wind turbine generator 1 is located and send the wind speed to the processor.
Example four:
a computer-readable storage medium storing a computer program that can be loaded by a processor and executes a control method of a wind turbine generator according to a second embodiment, the computer-readable storage medium comprising: u disk, removable hard disk, read only memory, optical disk, etc. various media that can store program code.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a control system of wind turbine generator system which characterized in that: including key center (11) and monitoring module (12), monitoring module (12) include image detection module (13), image detection module (13) include:
the image acquisition unit (131), the image acquisition unit (131) is connected with the main control center (11), and the image acquisition unit (131) is used for acquiring the image information of the rotating shaft in real time and sending the image information to the main control center (11); the main control center (11) acquires the contour of the rotating shaft according to an image contour extraction algorithm and generates a rotating shaft coordinate axis, the rotating shaft coordinate axis takes the top end of the rotating shaft contour as an X axis and takes one end of the top end of the rotating shaft contour as an original point, and the main control center (11) presets a point of the rotating shaft contour on the X axis and far away from the original point as a rotating shaft standard coordinate value;
the image analysis unit (132), the image analysis unit (132) is connected with the main control center (11), the main control center (11) sends the corresponding rotating shaft coordinate value when the rotating shaft is broken to the image analysis unit (132) for storage, and the image analysis unit (132) generates an angle threshold value according to all the stored rotating shaft coordinate values and sends the angle threshold value to the main control center (11);
the main control center (11) is used for comparing the received rotating shaft coordinate value with the rotating shaft standard coordinate value, judging whether the angle of the rotating shaft deviates or not, and generating a type of information when the angle of the rotating shaft deviates, wherein the type of information comprises the angle value of the deviation of the rotating shaft;
the main control center (11) is used for controlling the wind generating set (1) to stop working when the deviation angle value of the rotating shaft is larger than a preset angle standard value, wherein the angle standard value is smaller than an angle threshold value.
2. The control system of a wind turbine generator according to claim 1, wherein: the monitoring module (12) further comprises a shift count detection module (14), the shift count detection module (14) comprising:
the offset frequency detection unit (141), the offset frequency detection unit (141) is connected with the main control center (11), and the offset frequency detection unit (141) is used for acquiring image information of the rotating shaft in real time and sending the image information to the main control center (11);
the primary offset frequency analysis unit (142), the primary offset frequency analysis unit (142) is connected with the main control center (11), and the main control center (11) is used for receiving the image information sent by the main control center (11), comparing the image information with preset image standard information, judging whether the angle of the rotating shaft is offset, generating a type of image information when the angle of the rotating shaft is judged to be offset, and sending the type of image information to the main control center (11);
the N-level offset frequency analysis unit (143), the N-level offset frequency analysis unit (143) is connected with the main control center (11), the N-level offset frequency analysis unit (143) is used for receiving the image information sent by the main control center (11), comparing the image information with the N-1 type image information, judging whether the angle of the rotating shaft is offset, generating N type image information when the angle of the rotating shaft is judged to be offset, and sending the N type image information to the main control center (11);
the main control center (11) is used for judging the frequency of the rotating shaft offsetting according to the frequency of the received image information when the rotating shaft breaks and generating a rotating shaft offsetting frequency threshold value w, and the main control center (11) is used for controlling the corresponding wind turbine generator (1) to stop working when the frequency of the rotating shaft offsetting reaches w-1.
3. The control system of a wind turbine generator according to claim 1, wherein: the monitoring module (12) further comprises a wind speed detection module (15), the wind speed detection module (15) comprising:
the wind speed detection unit (151) is connected with the main control center (11), the wind speed detection unit (151) is used for collecting wind speed information of the position where the wind turbine generator (1) is located in real time and sending the wind speed information to the main control center (11), and the main control center (11) is used for extracting a corresponding wind speed value according to the wind speed information;
the wind speed analysis unit (152) is connected with the main control center (11), the main control center (11) is used for sending corresponding wind speed information to the wind speed analysis unit (152) for storage when the angle of the rotating shaft deviates, and the wind speed analysis unit (152) generates a wind speed threshold value according to all stored wind speed information and sends the wind speed threshold value to the main control center (11);
the main control center (11) is used for controlling the wind power generation set (1) to stop working when the wind speed value is larger than a preset wind speed standard value, wherein the preset wind speed standard value is smaller than a wind speed threshold value.
4. A control method of a wind turbine generator is characterized by comprising a single-point angle detection method A1, wherein the single-point angle detection method A1 comprises the following steps:
a101, obtaining a threshold: acquiring the contour of a rotating shaft according to an image contour extraction algorithm, generating a coordinate axis of the rotating shaft, and acquiring preset standard coordinate values (x 1, y 1) of the rotating shaft, an angle standard value b and an angle threshold value a, wherein the angle standard value b is smaller than the angle threshold value a;
the rotating shaft coordinate axis takes the top end of the rotating shaft contour as an X axis and takes one end of the top end of the rotating shaft contour as an origin; the coordinate value of the rotating shaft is a point of the rotating shaft profile on the X axis and far away from the original point;
a102, detection data: detecting image information of the rotating shaft in real time;
a103, obtaining coordinate values: obtaining a coordinate value (x 2, y 2) of a rotating shaft;
a104, primary judgment: comparing the coordinate values (x 2, y 2) of the rotating shaft with the standard coordinate values (x 1, y 1) of the rotating shaft, judging whether the angle of the rotating shaft deviates or not, and if so, calculating the angle c of the deviation of the rotating shaft according to a calculation formula;
wherein the calculation formula is c = arcsin (y 2/x 1);
a105, secondary judgment: when the deviation angle c of the rotating shaft is larger than the angle standard value b, the step A6 is carried out;
and A106, controlling the wind turbine generator to stop working.
5. The control method of the wind turbine generator according to claim 4, wherein: further comprising a multipoint angle detection method a2, the multipoint angle detection method a2 comprising:
a201, acquiring a preset number threshold m, a first tolerance range value k1 and a second tolerance range value k 2;
a202, obtaining X values and Y values of the coordinate values of n points on the X axis, respectively comparing the X values and the Y values with the corresponding X values and the corresponding Y values of the second standard coordinate values, judging whether the quantity of the difference values between the X values of the coordinate values of the n points and the corresponding X values of the second standard coordinate values, which are not within the first tolerance range value k1, is larger than a quantity threshold value m (m < n), and judging whether the difference value between the Y value of the coordinate values of the n points and the Y value of the corresponding second standard coordinate value is not larger than a quantity threshold value m (m < n) or not at the first tolerance range value k2, when the number of the difference values between the X values of the n point coordinate values and the X values of the corresponding second standard coordinate values which are not within the first tolerance range value k1 and the number of the difference values between the Y values of the n point coordinate values and the Y values of the corresponding second standard coordinate values which are not within the first tolerance range value k2 are both greater than the number threshold m, entering step a 203;
and A203, controlling the wind turbine generator to stop working.
6. The control method of the wind turbine generator according to claim 4, wherein: the method also comprises a deviation number detection method B, wherein the deviation number detection method B comprises the following steps:
b1, acquiring a preset offset time threshold value w;
b2, detecting the offset times of the rotating shaft angle in real time;
b3, when the number of times of the deviation of the rotating shaft angle reaches w-1, entering the step B4;
and B4, controlling the wind turbine generator to stop working.
7. The control method of the wind turbine generator according to claim 4, wherein: the wind speed detection method C is further included, and comprises the following steps:
c1, acquiring a wind speed threshold value C and a preset wind speed standard value d, wherein the preset wind speed standard value d is less than the wind speed threshold value C;
c2, detecting the wind speed value of the position of the wind turbine generator in real time;
c3, when the wind speed value is larger than the preset wind speed standard value d, entering the step C4;
and C4, controlling the wind turbine generator to stop working.
8. A control device of a wind turbine generator set based on claims 4-7, characterized by comprising a processor, wherein the wind turbine generator set (1) comprises a rotating shaft (7), and one end of the rotating shaft (7) is connected with a hub (5);
a camera (8) facing the rotating shaft (7) is arranged on the shell (3), and a controller of the camera (8) is connected with the processor;
an alarm (9) is arranged at the processor, and the alarm (9) is connected with the processor;
the wind speed sensor (10) is arranged on the shell (3), and the wind speed sensor (10) is connected with the processor and used for detecting the wind speed of the position where the wind turbine generator (1) is located in real time.
9. A computer-readable storage medium characterized by: a computer program which can be loaded by a processor and which performs the method according to any of claims 4-7.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2484904A2 (en) * | 2011-02-08 | 2012-08-08 | Steffen Bunge | Photogrammetric assessment to verify or determine alignment angles of wind turbine parts |
| DE102013110898A1 (en) * | 2013-10-01 | 2014-08-14 | Bundesrepublik Deutschland, vertreten durch das Bundesministerium für Wirtschaft und Technologie, dieses vertreten durch den Präsidenten der BAM, Bundesanstalt für Materialforschung und -prüfung | Method for assessing state of rotor blade of wind turbine installed in wind farm, involves comparing angular orientation values to determine variations in angular orientation values to distinguish thermal signature in blades |
| US20150252789A1 (en) * | 2014-03-04 | 2015-09-10 | Steffen Bunge | Method for Detecting Deflection of the Blades of a Wind Turbine |
| CN109617234A (en) * | 2018-12-14 | 2019-04-12 | 吉林电力股份有限公司科技开发分公司 | A kind of wind power generating set condition monitoring system based on multidimensional data |
| CN110905736A (en) * | 2019-12-25 | 2020-03-24 | 河南锐工电子科技有限公司 | Fan operation monitoring system |
-
2020
- 2020-06-03 CN CN202010495709.9A patent/CN111608856B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2484904A2 (en) * | 2011-02-08 | 2012-08-08 | Steffen Bunge | Photogrammetric assessment to verify or determine alignment angles of wind turbine parts |
| DE102013110898A1 (en) * | 2013-10-01 | 2014-08-14 | Bundesrepublik Deutschland, vertreten durch das Bundesministerium für Wirtschaft und Technologie, dieses vertreten durch den Präsidenten der BAM, Bundesanstalt für Materialforschung und -prüfung | Method for assessing state of rotor blade of wind turbine installed in wind farm, involves comparing angular orientation values to determine variations in angular orientation values to distinguish thermal signature in blades |
| US20150252789A1 (en) * | 2014-03-04 | 2015-09-10 | Steffen Bunge | Method for Detecting Deflection of the Blades of a Wind Turbine |
| CN109617234A (en) * | 2018-12-14 | 2019-04-12 | 吉林电力股份有限公司科技开发分公司 | A kind of wind power generating set condition monitoring system based on multidimensional data |
| CN110905736A (en) * | 2019-12-25 | 2020-03-24 | 河南锐工电子科技有限公司 | Fan operation monitoring system |
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