CN108252860B - Method and device for reducing heat absorption of wind generating set - Google Patents
Method and device for reducing heat absorption of wind generating set Download PDFInfo
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- CN108252860B CN108252860B CN201611255798.XA CN201611255798A CN108252860B CN 108252860 B CN108252860 B CN 108252860B CN 201611255798 A CN201611255798 A CN 201611255798A CN 108252860 B CN108252860 B CN 108252860B
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 52
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- 238000010586 diagram Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
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- 238000010248 power generation Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
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- 238000003491 array Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/329—Azimuth or yaw angle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
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Abstract
The invention discloses a method and a device for reducing heat absorption of a wind generating set. The method for reducing the heat absorption of the wind generating set comprises the following steps: determining a yaw angle based on a current nacelle axis azimuth and a current sun azimuth of the wind generating set; and controlling the cabin of the wind generating set to yaw towards the azimuth right to or away from the sun based on the obtained yaw angle. The method can reduce the temperature rise of the generator caused by solar radiation, further reduce the possibility of the wind generating set stopping due to the solar radiation, and simultaneously shorten the stopping time of the wind generating set, prolong the total working time of the generator and improve the generating capacity of the wind power plant under the condition that the wind generating set has a stopping fault.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a method and a device for reducing heat absorption of a wind generating set.
Background
The over-temperature problem of the generators occurs in many units, the temperature threshold of the windings of some generators is set to be about 125-. After a period of shutdown, the temperature drops. The shutdown unit can automatically reset and start the machine. In hot summer, the sun insolates the surface of the generator to bring difficulty to the heat dissipation of the unit.
The on-site wind generating set often encounters the condition of shutdown failure caused by overhigh temperature of a generator winding, the wind generating set does not work after shutdown, at the moment, the whole wind generating set enters a natural cooling state, and in the state, the failure is relieved, the wind generating set resets and is automatically started when the temperature of the generator winding is reduced to be below a threshold value.
The existing wind generating set does not yaw along with solar radiation, when the wind generating set stays at a machine site with high solar radiation intensity, the wind generating set is extremely likely to generate over-temperature, and the wind generating set is still exposed to high radiation in the process of stopping and cooling the wind generating set, so that the cooling speed is very low, and the machine can be started again after long-time stopping and cooling.
Disclosure of Invention
The embodiment of the invention provides a method and a device for reducing heat absorption of a wind generating set, which can reduce the temperature rise of a generator caused by solar radiation, further reduce the possibility of shutdown of the wind generating set caused by the solar radiation, shorten the shutdown time of the wind generating set, prolong the total working time of the generator and improve the generating capacity of a wind power plant under the condition that the wind generating set has shutdown faults.
In a first aspect, a method for reducing heat absorption of a wind turbine generator system is provided, which includes: determining a yaw angle based on a current nacelle axis azimuth and a current sun azimuth of the wind generating set; and controlling the cabin of the wind generating set to yaw towards the azimuth right to or away from the sun based on the obtained yaw angle.
In a second aspect, an apparatus for reducing heat absorption of a wind turbine generator system is provided, comprising: the system comprises a calculation unit and a control unit, wherein the calculation unit determines a yaw angle for the current cabin axis azimuth and the current sun azimuth based on the wind generating set; the control unit is used for controlling the cabin of the wind generating set to yaw towards the azimuth right to or away from the sun based on the obtained yaw angle.
According to the method and the device for reducing the heat absorption of the wind generating set, the determined yaw angle is obtained through the calculation of the current solar azimuth angle and the current cabin axis azimuth of the wind generating set, and the cabin of the wind generating set is controlled to yaw towards the azimuth opposite to or opposite to the sun according to the determined yaw angle, so that the temperature rise of the generator and the cabin caused by solar radiation is reduced, the possibility of the wind generating set stopping due to the solar radiation is further reduced, in addition, under the condition that the wind generating set has a stopping fault, the stopping time of the wind generating set is shortened, the total working time of the generator is prolonged, and the generating capacity of a wind power plant is improved.
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 of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a method of reducing heat absorption by a wind turbine generator set according to an embodiment of the present invention;
FIG. 2 is a schematic effect diagram of a method for reducing heat absorption of a wind turbine generator system according to another embodiment of the invention;
FIG. 3 is a schematic effect diagram of a method for reducing heat absorption of a wind turbine generator system according to an embodiment of the invention;
FIG. 4 is a schematic flow chart of a method of reducing heat absorption of a wind turbine generator set according to an embodiment of the invention;
FIG. 5 is a schematic state diagram of a method of reducing wind turbine generator set heat absorption using an embodiment of the present invention;
FIG. 6 is a schematic block diagram of an apparatus for reducing heat absorption of a wind turbine generator set according to an embodiment of the present invention;
FIG. 7 is a schematic block diagram of a wind turbine generator set reducing heat absorption according to another embodiment of the present invention;
FIG. 8 is a schematic block diagram of a wind turbine generator set according to an embodiment of the present invention;
FIG. 9 is a schematic block diagram of a computing device implementation of an apparatus to reduce wind turbine generator set heat absorption in an embodiment of the present invention.
In the figure:
501. nacelle, 502, impeller, 503, blade, 504, generator.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific configuration and algorithm set forth below, but rather covers any modification, replacement or improvement of elements, components or algorithms without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention.
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. In the drawings, the thickness of regions and layers may be exaggerated for clarity. The same reference numerals denote the same or similar structures in the drawings, and thus detailed descriptions thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
FIG. 1 is a schematic flow diagram of a method of reducing heat absorption of a wind turbine generator set according to an embodiment of the invention. The method can comprise the following steps: s110, determining a yaw angle based on the current cabin axis azimuth and the current sun azimuth of the wind generating set; and S120, controlling the cabin of the wind generating set to yaw towards the azimuth right to or back to the sun based on the obtained yaw angle. In some embodiments, the method can be applied to the wind generating set before the wind generating set has the shutdown fault, and the wind generating set is controlled to yaw so that the cabin of the wind generating set is close to the position facing to or away from the sun, so that the generator can be lightened to some extent, and the probability of the shutdown fault is reduced. In some examples, after the wind generating set stops or in the process of stopping, because a yaw system of the wind generating set does not need to control the wind of the wind generating set any more, the wind generating set is controlled to yaw by using the method for reducing the heat absorption of the wind generating set, so that the cabin of the wind generating set is close to the direction right opposite to or back to the sun, the heat energy absorbed by the generator due to sunlight irradiation after stopping can be effectively reduced, and the stopping time can be effectively shortened. According to the embodiment, the determined yaw angle can be obtained through calculation of the current solar azimuth angle and the current cabin axis azimuth of the wind generating set, and the cabin of the wind generating set is controlled to yaw towards the azimuth opposite to or opposite to the sun according to the determined yaw angle, so that the temperature rise of the generator and the cabin caused by solar radiation is reduced, the possibility of the wind generating set stopping due to the solar radiation is further reduced, and in addition, under the condition that the wind generating set has a stopping fault, the stopping time of the wind generating set is shortened, the total working time of the generator is prolonged, and the generating capacity of the wind power plant is improved.
In some examples, the method may further include determining whether the wind turbine generator set is shutting down; and when the wind generating set is judged to be stopped, controlling the wind generating set to yaw based on the obtained yaw angle so that the engine room of the wind generating set faces or faces away from the sun. When the wind driven generator is stopped, the influence of yaw control of the wind driven generator unit on wind yaw based on the obtained yaw angle on the wind yaw of the wind driven generator is not considered, so that the engine room of the wind driven generator unit can be made to face or back to the sun as far as possible, and when the engine room axially connected with the generator is positioned in the two directions, the heat absorbed by the generator and the engine room due to sun irradiation at the current moment can be considered to be the least.
In S110, the solar altitude and the solar azimuth are different at different time periods because the positions are different in latitude and longitude. The wind generating set, in particular the generator part of the wind generating set, receives the radiation of the sun and is related to the included angle between the sunlight and the current axis direction of the engine room, so that the axis direction of the engine room can be changed by controlling the yaw of the wind generating set, and the heat absorbed by the generator and the engine room part due to the sun radiation is minimized. In some examples, the generator of the wind turbine is axially connected to the nacelle, so that solar radiation, in addition to affecting the temperature of the windings inside the generator, leads to a shutdown failure or to a prolonged shutdown failure when a shutdown has occurred, also leads to a warming of the nacelle axially connected to the generator, which also affects the warming of the generator, for example, in the case where the cooling system of the generator is arranged inside the nacelle, etc. The solar radiation received by the generator and the nacelle site can be calculated by:
in formula (1), Qs is the solar radiation energy received at this moment on the horizontal plane, W is the total width of the generator and the nacelle, D is the diameter of the generator and the nacelle, Hs is the solar altitude angle, As is the solar azimuth angle, γ is the yaw angle of the wind turbine generator system, and for example, the north direction is 0 °, the east direction is 90 °, the south direction is 180 °, the west direction is 270 °, and the variation range is 0-360 °. Wherein the solar altitude and solar azimuth at any time can be obtained by:
sinH
s＝sinφ×sinδ+cosφ×cosδ×cost (2)
cosA
s＝(sinH
s×sinφ-sinδ)÷(cosH
s×cosφ) (3)
solar time angle t ═ (true solar time-12) × (5) 15 °
Where As is the solar azimuth, Hs the solar altitude, phi the geographical latitude, δ the solar declination, t the solar hour angle, b is 2 × PI (N-1)/365, N is the number of days from 1 month 1 day per year from the calculation day, i.e., 1 month 1 day, N is 1, 1 month 2 days, N is 2, and so on. P denotes the circumferential ratio, deg denotes the formula calculated in angular degrees, the solar hour angle is zero at noon (i.e. in the middle of the sky), positive at the morning, negative at the afternoon, minus 90 ° at sunrise, plus 90 ° at sunset, and the average change in hour angle is 15 degrees.
In some examples, the method may further comprise, after the step of determining the yaw angle based on the current nacelle axis azimuth and the current sun azimuth angle of the wind park, controlling the nacelle of the wind park to yaw towards an azimuth facing towards or away from the sun based on a smaller yaw angle of the obtained yaw angles. Fig. 2 is a schematic effect diagram of a method for reducing heat absorption of a wind generating set by adopting another embodiment of the invention. As shown in fig. 2, the abscissa is the difference between the generator azimuth and the sun azimuth in degrees; the ordinate is the solar emissivity. Taking the case of a 60-degree solar altitude as an example, the solar radiation coefficient (which is 1 when facing the direct sunlight) shows the lowest value when the difference between the included angles of the generator axis azimuth and the solar azimuth is 0 degree (facing the sun) and 180 degrees (facing away from the sun), so in some embodiments, the yaw angle calculated by S110 may be two, one yaw angle may enable the nacelle of the wind turbine generator to face the sun, and the other yaw angle may enable the nacelle of the wind turbine generator to face the sun. The thick solid lines of the two arrows in fig. 2 represent the change of the solar radiation absorbed by the generator when the head orientation of the generator and the tail orientation of the generator are respectively deflected to the current solar orientation. For example, in S120, when the head position of the nacelle is closer to the current sun position than the tail position, a yaw angle for enabling the nacelle of the wind turbine generator to face away from the sun may be selected to control the yaw of the wind turbine generator; when the machine tail position of the engine room is closer to the current sun position relative to the machine head position, the yaw angle of the wind driven generator can be controlled by selecting the yaw angle which enables the engine room of the wind driven generator to face the sun, so that the yaw time is shortened, and the reduction of the absorption of the generator and the engine room to the solar energy is realized in a shorter time.
In some examples, the method may further include obtaining a yaw angle range including the yaw angle based on the yaw angle, and controlling the nacelle of the wind turbine generator set to yaw toward an azimuth facing toward or away from the sun according to the yaw angle range. For example, considering that the yaw sensitivity of the generator to solar radiation is low when the solar radiation coefficient shows the lowest value, the generator may be yawed to the horizontal line position in fig. 2, that is, the minimum value of the heat absorption of the generator may be considered to be reached, so as to shorten the yaw time, and achieve the purpose of reducing the absorption of the generator to solar energy in a shorter time.
FIG. 3 is a schematic effect diagram of a method for reducing heat absorption of a wind generating set according to an embodiment of the invention. As shown in fig. 3, the abscissa is the difference between the generator azimuth and the sun azimuth in degrees; the ordinate is the solar emissivity. The heavy solid line with arrows in fig. 3 represents the change in solar radiation absorbed by the generator when the generator deflects the nacelle of the wind park towards the sun. In some examples, the method may further include setting a low heat absorption azimuth range including a low heat absorption azimuth of the generator based on the current solar altitude to control the wind park to yaw the generator axis azimuth within the low heat absorption azimuth range. For example, considering that the yaw sensitivity of the generator to solar radiation is low when the solar radiation coefficient is the lowest value, the generator may be yawed to the horizontal line position in fig. 3, for example, a yaw angle range (obtained yaw angle ± 180 ° × 10%) may be considered to have reached the minimum value of the heat absorption of the generator, thereby shortening the yaw time and achieving the effect of reducing the absorption of solar energy by the generator in a shorter time.
In some examples, the method may further include obtaining a yaw angle based on the measured yaw angle. By the method, the cabin of the wind generating set can yaw towards the direction which is over against or back to the sun, so that the temperature rise of the generator caused by solar radiation is reduced, and the possibility of shutdown of the wind generating set caused by the solar radiation is further reduced. When the wind generating set has a condition that the temperature of a generator winding is too high to cause a shutdown fault, in some embodiments, if the wind generating set is judged to be shutdown, one blade of the wind generating set is controlled to stay at a vertical position right above the generator in a shutdown state, so that the blade shields the generator and the engine room from sunlight. In some examples, it may be considered to control the wind park to yaw with the nacelle facing the sun, and in such cases, the control of the impeller to park the blades directly above the generator to shield the generator and nacelle may be selected to reduce the absorption of solar radiation heat by the generator and nacelle. At this time, because the generator is over against the sun, the effect of the blades for shielding the sunlight is the best, and the absorption of the generator and the engine room to the solar radiation heat can be reduced to the greatest extent. In some examples, when the wind generating set is shut down due to the fact that the temperature of the winding of the generator is too high, the impeller can be selected to control the blades to shield the generator and the engine room to reduce the absorption of the generator and the engine room to the sun irradiation heat without considering whether the generator is in the state of being directly opposite to the sun.
FIG. 4 is a schematic flow chart of a method of reducing heat absorption of a wind turbine generator set according to an embodiment of the invention. The method comprises the following steps: s410, determining a yaw angle based on the current cabin axis azimuth and the current sun azimuth of the wind generating set; s420, controlling the cabin of the wind generating set to yaw towards the azimuth opposite to or back to the sun based on the obtained yaw angle; s430, judging whether the wind generating set is stopped; s440, when the wind generating set is judged to be stopped, controlling one blade of the wind generating set to stay at a vertical position right above the generator in a stop state, so that the blade can shield the generator and the engine room from sunlight irradiation. FIG. 5 is a schematic state diagram of a method of reducing wind park heat absorption using an embodiment of the present invention. As shown in fig. 5, taking the case that the head of the generator 504 is facing the sun to yaw, wherein the impeller 502, the generator 504 and the nacelle 501 are axially connected, the impeller 502 can reduce the rotation speed due to the shutdown during the yaw process until the rotation stops, the wind turbine generator system can be controlled to use the brake disc to enable the stopping position of the blade 503 to be located at the vertical position during the low rotation speed process, so that the blade 503 blocks the direct sunlight, and shadows are cast on the generator 504 and the nacelle 501, thereby reducing the absorption of the generator 504 and the nacelle 501 to the sun irradiation heat, reducing the shutdown time and improving the power generation of the wind farm.
The method for reducing heat absorption of the wind generating set according to the embodiment of the invention is described in detail above with reference to fig. 1 and 4, and the device for reducing heat absorption of the wind generating set and the wind generating set according to the embodiment of the invention are described in detail below with reference to fig. 6, 7 and 8.
FIG. 6 is a schematic block diagram of an apparatus for reducing heat absorption of a wind turbine generator set according to an embodiment of the present invention. As shown in fig. 6, the device 600 for reducing heat absorption of a wind turbine generator system includes: a calculation unit 610 and a control unit 620, the calculation unit 610 determining a yaw angle for a current nacelle axis azimuth and a current sun azimuth based on the wind turbine generator set; the control unit 620 controls the nacelle of the wind turbine generator system to yaw towards an azimuth opposite to or away from the sun based on the obtained yaw angle. The device 600 for reducing heat absorption of a wind generating set according to an embodiment of the present invention may correspond to an execution subject in the method for reducing heat absorption of a wind generating set according to an embodiment of the present invention, and the above and other operations and/or functions of each unit in the device 600 for reducing heat absorption of a wind generating set are respectively for implementing corresponding processes of each method in fig. 1, and are not described herein again for brevity. According to the embodiment of the device, the determined yaw angle can be obtained through calculation of the current solar azimuth angle and the current cabin axis azimuth of the wind generating set, and the cabin of the wind generating set is controlled to yaw towards the azimuth opposite to or opposite to the sun according to the determined yaw angle, so that the temperature rise of the generator and the cabin caused by solar radiation is reduced, the possibility of the wind generating set stopping due to the solar radiation is further reduced, in addition, under the condition that the wind generating set has a stopping fault, the stopping time of the wind generating set is shortened, the total working time of the generator is prolonged, and the generating capacity of the wind power plant is improved.
In some examples, the control unit 620 may also be configured to determine whether the wind turbine generator set is shutting down; and when the wind generating set is judged to be stopped, controlling the wind generating set to yaw based on the obtained yaw angle so that the engine room of the wind generating set faces or faces away from the sun.
In some examples, the control unit 620 may also control the nacelle of the wind park to yaw towards an azimuth facing towards or away from the sun based on a smaller one of the obtained yaw angles.
In some examples, the further calculation unit 610 may also be configured to control the nacelle of the wind park to yaw towards an azimuth facing towards or away from the sun according to a yaw angle range including a yaw angle based on the yaw angle.
FIG. 7 is a schematic block diagram of a wind turbine generator set for reducing heat absorption according to another embodiment of the present invention. As shown in fig. 7, the device 700 for reducing heat absorption of a wind turbine generator system includes: a calculation unit 710, a control unit 720 and a blade adjustment unit 730, wherein the calculation unit 710 can determine a yaw angle for the current nacelle axis azimuth and the current sun azimuth based on the wind turbine; the control unit 720 may control the nacelle of the wind turbine to yaw towards an azimuth opposite to or away from the sun based on the obtained yaw angle; the impeller adjusting unit 730 may control a blade of the wind turbine generator system to stay at a vertical position right above the generator in a shutdown state when it is determined that the wind turbine generator system is shutdown, so that the blade shields the generator and the nacelle from sunlight. The device 700 for reducing heat absorption of a wind generating set according to an embodiment of the present invention may correspond to an execution subject in the method for reducing heat absorption of a wind generating set according to an embodiment of the present invention, and the above and other operations and/or functions of each unit in the device 700 for reducing heat absorption of a wind generating set are respectively for implementing corresponding processes of each method in fig. 4, and are not described herein again for brevity.
Fig. 8 is a schematic block diagram of a wind turbine generator system according to an embodiment of the present invention, as shown in fig. 8, the wind turbine generator system 800 includes: the device 810 for reducing heat absorption of the wind generating set, the yaw system 820 and the wind driven generator 830 are connected, and the device 810 for reducing heat absorption of the wind generating set is connected with the yaw system 820 and is used for controlling the yaw system 820 to yaw; the device 810 for reducing heat absorption of the wind turbine generator system is connected with the wind turbine generator 830 and is used for controlling the rotation of the impeller of the wind turbine generator 830.
FIG. 9 is a schematic block diagram of a computing device implementation of an apparatus to reduce wind turbine generator set heat absorption in an embodiment of the present invention. As shown in fig. 9, at least a portion of the means for reducing wind turbine generator set heat absorption described in connection with fig. 6 or 7 may be implemented by a computing device 900, including a memory 904, a processor 903, and a bus 910; the memory 904 and the processor 903 are connected via a bus 910 and communicate with each other; the memory 904 is used to store program code; the processor 930 runs a program corresponding to the executable program code by reading the executable program code stored in the memory 904 for performing the method of reducing the heat absorption of the wind park as shown in fig. 1 or fig. 4. In some examples, the computing device 900 may also include an input device 901, an input port 902, an output port 905, and an output device 906. The input port 902, the processor 903, the memory 904, and the output port 905 are connected to each other via a bus 910, and the input device 901 and the output device 906 are connected to the bus 910 via the input port 902 and the output port 905, respectively, and further connected to other components of the computing device 900. It should be noted that the output port 905 and the input port 902 may also be represented by I/O interfaces. Specifically, the input device 901 receives input information from the outside and transmits the input information to the processor 903 through the input port 902; the processor 903 processes the input information based on computer-executable instructions stored in the memory 904 to generate output information, stores the output information in the memory 904 temporarily or permanently, and then transmits the output information to the output device 906 via the output port 905; output device 906 outputs the output information external to computing device 900.
The memory 904 described above includes mass storage for data or instructions. By way of example, and not limitation, memory 904 may include an HDD, floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive or a combination of two or more of these. Memory 904 may include removable or non-removable (or fixed) media, where appropriate. Memory 904 may be internal or external to computing device 900, where appropriate. In a particular embodiment, the memory 904 is a non-volatile solid-state memory. In a particular embodiment, the memory 904 includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory or a combination of two or more of these.
The bus 910 includes hardware, software, or both to couple the components of the computing device 900 to each other. By way of example, and not limitation, the bus 910 may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus, or a combination of two or more of these. The bus 910 may include one or more buses 910, where appropriate. Although specific buses have been described and shown in the embodiments of the invention, any suitable buses or interconnects are contemplated by the invention.
When the means for reducing wind park heat absorption described in connection with fig. 6 is implemented by the computing device 900 shown in fig. 9, the input device 901 receives the current nacelle axis azimuth and the current sun azimuth of the wind park, and in particular embodiments, the I/O interface connected to the output device may include hardware, software, or both, providing one or more interfaces for communication between the computing device 900 and one or more I/O devices. Computing device 900 may include one or more of these I/O devices, where appropriate. One or more of these I/O devices may allow communication between a person and computing device 900. By way of example, and not limitation, an I/O device may include a keyboard, keypad, microphone, monitor, mouse, printer, scanner, speaker, still camera, stylus, tablet, touch screen, trackball, video camera, another suitable I/O device, or a combination of two or more of these. The I/O device may include one or more sensors. Embodiments of the present invention contemplate any suitable I/O devices and any suitable I/O interfaces for use therewith. The I/O interface may comprise one or more devices or software drivers capable of allowing the processor 903 to drive one or more of these I/O devices, where appropriate. The I/O interface may include one or more I/O interfaces, where appropriate. Although embodiments of the present invention describe and illustrate particular I/O interfaces, embodiments of the present invention contemplate any suitable I/O interfaces. The processor 903 determines a yaw angle based on a current nacelle axis azimuth and a current sun azimuth of the wind park based on executable program code stored in the memory 904. The control command containing the above yaw angle is then output as needed via the output port 905 and the output device 906.
Where appropriate, the executable program code may include one or more semiconductor-based or other Integrated Circuits (ICs) (e.g., such as Field Programmable Gate Arrays (FPGAs) or application specific ICs (asics)), Hard Disk Drives (HDDs), hybrid hard disk drives (HHDs), optical disks, Optical Disk Drives (ODDs), magneto-optical disks, magneto-optical disk drives, floppy disks, Floppy Disk Drives (FDDs), magnetic tape, holographic storage media, Solid State Drives (SSDs), RAM drives, secure digital cards or drives, or other suitable computer-readable non-transitory storage media, or a combination of two or more of these.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions or change the order between the steps after comprehending the spirit of the present invention.
In addition, functional units in the embodiments of the present invention 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 integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A method for reducing heat absorption of a wind generating set, comprising:
judging whether the wind generating set is stopped or not;
when the wind generating set is judged to be stopped, controlling the wind generating set to yaw based on the obtained yaw angle so that the engine room of the wind generating set is opposite to the sun in a stopped state;
wherein the yaw angle is determined based on a current nacelle axis azimuth and a current sun azimuth of the wind turbine generator set;
the method further comprises the following steps:
when judging wind generating set is shutting down, control wind generating set's a blade stops the vertical position in the place ahead of generator under the parking state, the place ahead of generator is the generator orientation the aircraft nose in cabin, and be in when vertical position the apex of blade is higher than the blade root, so that the blade is generator and cabin shelter from sunshine.
2. The method of reducing wind park heat absorption according to claim 1, wherein the step of controlling the wind park to yaw based on the obtained yaw angle comprises: and controlling the cabin of the wind generating set to yaw towards the azimuth opposite to the sun based on the smaller yaw angle in the obtained yaw angles.
3. The method of reducing wind park heat absorption according to claim 1, wherein the step of controlling the wind park to yaw based on the obtained yaw angle comprises: and obtaining a yaw angle range containing the yaw angle based on the yaw angle, and controlling the cabin of the wind generating set to yaw towards the azimuth opposite to the sun according to the yaw angle range.
4. A device for reducing heat absorption of a wind generating set is characterized by comprising:
a calculation unit for determining a yaw angle based on a current nacelle axis azimuth and a current sun azimuth of the wind turbine generator system;
the control unit is used for judging whether the wind generating set is stopped or not; when the wind generating set is judged to be stopped, controlling the wind generating set to yaw based on the obtained yaw angle so that a cabin of the wind generating set is opposite to the sun in a stopped state;
the impeller adjusting unit is used for controlling a blade of the wind generating set to stay at the vertical position in front of the generator in the shutdown state when the wind generating set is judged to be shutdown, the front of the generator faces the direction of the machine head of the engine room, and the blade tip of the blade is higher than the blade root when the blade is at the vertical position, so that the blade is used for shielding sunlight from the generator and the engine room.
5. The device for reducing the heat absorption of the wind generating set according to claim 4,
the control unit is also used for controlling the cabin of the wind generating set to yaw towards the azimuth opposite to the sun based on the smaller yaw angle in the obtained yaw angles.
6. The apparatus of claim 4, wherein the control unit is further configured to obtain a yaw angle range including the yaw angle based on the yaw angle, and control the nacelle of the wind turbine generator to yaw toward the azimuth opposite to the sun according to the yaw angle range.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611255798.XA CN108252860B (en) | 2016-12-29 | 2016-12-29 | Method and device for reducing heat absorption of wind generating set |
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| CN201611255798.XA CN108252860B (en) | 2016-12-29 | 2016-12-29 | Method and device for reducing heat absorption of wind generating set |
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| CN108252860A CN108252860A (en) | 2018-07-06 |
| CN108252860B true CN108252860B (en) | 2020-02-11 |
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| CN114076064B (en) * | 2020-08-10 | 2023-11-28 | 北京金风科创风电设备有限公司 | Method and device for determining yaw 0-degree azimuth angle and yaw direction |
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| EP2599993A1 (en) * | 2011-12-01 | 2013-06-05 | Siemens Aktiengesellschaft | Method to determine the yaw angle of a component of a wind turbine |
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| CN1298092A (en) * | 2000-12-08 | 2001-06-06 | 中国科学院紫金山天文台 | Precise azimuth measuring system |
| EP1460266A2 (en) * | 2003-03-19 | 2004-09-22 | Mitsubishi Denki Kabushiki Kaisha | Wind turbine with laser apparatus for measuring the wind velocity |
| CN101956656A (en) * | 2009-07-14 | 2011-01-26 | 通用电气公司 | Be used for the passive type deicing of wind turbine blade |
| CN102141004A (en) * | 2010-01-14 | 2011-08-03 | 通用电气公司 | System and method for monitoring and controlling wind turbine blade deflection |
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