CN113530769B - Ice-throwing prevention control method and system for wind generating set and computer readable storage medium - Google Patents
Ice-throwing prevention control method and system for wind generating set and computer readable 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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0264—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
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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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- 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
- F03D7/028—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
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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
- F03D7/047—Automatic control; Regulation by means of an electrical or electronic controller characterised by the controller architecture, e.g. multiple processors or data communications
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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
- F03D7/048—Automatic control; Regulation by means of an electrical or electronic controller controlling wind farms
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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 embodiment of the invention provides an anti-ice-throwing control method and system for a wind generating set and a computer readable storage medium. The control method comprises the following steps: determining wind generating sets with ice throwing risks in a wind power plant, wherein the wind generating sets with ice throwing risks comprise ice throwing sets and ice receiving sets; in the wind generating sets with the ice throwing risks, determining ice throwing sectors from the ice throwing machine set to the ice throwing machine set; collecting information of an icing sensor arranged in a wind power plant; when ice is determined based on the information of the ice sensor, sharing the ice information detected by the ice sensor to each wind generating set in the wind power plant; and when the cabin position of the ice throwing unit enters the ice throwing sector, controlling the ice throwing unit to enter a sector ice throwing prevention management mode based on the ice information. Therefore, the ice throwing risk between adjacent wind generating sets can be effectively reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of wind power, in particular to an anti-ice-throwing control method and system for a wind generating set and a computer readable storage medium.
Background
Along with the gradual exhaustion of energy sources such as coal, petroleum and the like, people pay more attention to the utilization of renewable energy sources. Wind energy is becoming increasingly important worldwide as a clean renewable energy source. The wind power generation device is very suitable for coastal islands, grassland pasture areas, mountain areas and plateau areas which are lack of water, fuel and inconvenient in transportation, and can be widely used according to local conditions. Wind power generation means that kinetic energy of wind is converted into electric energy by using a wind generating set.
Wind generating sets are increasingly widely used, models are more and more, and wind power plants are widely distributed. Because the mountain area has abundant wind resources, the mountain area wind farm is more and more favored by wide fan users. In order to utilize the wind resource advantage of mountain area as much as possible, the demand of users for blower positions is gradually increased. However, in winter, the period of icing in mountain areas is not a small test for wind power generation sets, and the distance between some fan positions is too close, so that the risk that other wind power generation sets can be jeopardized due to blade ice throwing during icing is increased.
In general, icing control of a wind turbine generator is to compare a theoretical power value to an actual power value at a certain wind speed according to a corresponding relation between the wind speed and a power meter, and if a power deviation between the actual power value and the theoretical power value exceeds a certain allowable value, determine that the wind turbine generator is in an icing state. And when the wind generating set is in an icing state, controlling the wind generating set to stop. However, the existing icing control is not specific to special terrains, for example, when two wind generating sets are relatively close to each other, if the wind generating sets are frozen, but the power deviation is judged to not reach the shutdown condition, and the original running state is continued, the risk of ice throwing damage to the adjacent wind generating sets is probably caused.
Disclosure of Invention
The embodiment of the invention aims to provide an anti-ice-throwing control method and system for a wind generating set and a computer readable storage medium, which can effectively reduce ice throwing risks between adjacent wind generating sets.
One aspect of the embodiment of the invention provides an anti-ice-throwing control method for a wind generating set. The control method comprises the following steps: determining wind generating sets with ice throwing risks in a wind power plant, wherein the wind generating sets with ice throwing risks comprise ice throwing sets and ice throwing machine sets; in the wind generating sets with the ice throwing risks, determining ice throwing sectors from the ice throwing machine set to the ice throwing machine set; collecting information of an icing sensor arranged in the wind power plant; when ice is determined based on the information of the ice sensor, sharing the ice information detected by the ice sensor to each wind generating set in the wind power plant; and when the cabin position of the ice throwing unit enters the ice throwing sector, controlling the ice throwing unit to enter a sector ice throwing prevention management mode based on the icing information.
The invention also provides an anti-ice-throwing control device of the wind generating set. The control device comprises one or more processors and is used for realizing the anti-ice-throwing control method of the wind generating set.
Still another aspect of the embodiments of the present invention provides a computer readable storage medium having a program stored thereon, which when executed by a processor, implements the method for controlling ice-throwing prevention of a wind turbine generator set according to the above embodiments.
According to the ice-throwing prevention control method and system for the wind generating set and the computer readable storage medium, provided by one or more embodiments of the invention, the possibility of damage to ice throwing of two adjacent wind generating sets with dangerous distance positions can be reduced to the minimum; the icing state is measured more finely, and the generated energy of the wind generating set during icing is ensured through fine control, so that unnecessary loss is reduced.
According to the anti-ice-throwing control method and system for the wind generating set and the computer readable storage medium, provided by one or more embodiments of the invention, through the icing sensor arranged in the wind power plant, the sharing of ice formation information among all wind generating sets in the whole wind power plant is realized in a field control mode, the technology is novel, the purchasing quantity of the icing sensor is saved, and the cost is saved.
Drawings
FIG. 1 is a schematic view of a wind turbine generator system;
FIG. 2 is a flow chart of a method of controlling anti-ice-flick of a wind turbine generator system according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of determining ice-shedding sectors of an ice-shedding machine group to an ice-shedding machine group based on geographical location information of the ice-shedding machine group and the ice-shedding machine group according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of information sharing by field control based on icing information detected by a single icing sensor according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a wind turbine generator system operating north;
FIG. 6 is a detailed step of controlling an ice slinger group to enter a sector ice slinger management mode based on ice formation information in accordance with one embodiment of the present invention;
fig. 7 is a schematic block diagram of an anti-ice-throwing control device of a wind generating set according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with aspects of the invention as detailed in the accompanying claims.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless defined otherwise, technical or scientific terms used in the embodiments of the present invention should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present invention belongs. The terms first, second and the like in the description and in the claims, are not used for any order, quantity or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
Fig. 1 discloses a perspective view of a wind power plant 100. As shown in FIG. 1, a wind turbine 100 includes a plurality of blades 101, a nacelle 102, a hub 103, and a tower 104. The tower 104 extends upwardly from a foundation (not shown), the nacelle 102 is mounted on top of the tower 104, the hub 103 is mounted on an end of the nacelle 102, and the plurality of blades 101 are mounted on the hub 103.
FIG. 2 discloses a flow chart of a method for controlling ice-throwing prevention of a wind generating set according to one embodiment of the invention. As shown in fig. 2, the method for controlling ice-throwing prevention of a wind turbine generator system according to an embodiment of the present invention may include steps S1 to S7.
In step S1, the wind power generation sets 100 in the wind farm, which are at risk of ice shedding from each other, are determined, wherein the wind power generation sets 100 in the wind farm, which are at risk of ice shedding from each other, include a wind power generation set with risk of ice shedding (abbreviated as "ice shedding set") and a wind power generation set with risk of ice shedding (abbreviated as "ice shedding set").
The ice throwing machine group refers to a wind generating set which can cause ice throwing damage to other wind generating sets and cannot be damaged by the other wind generating sets, and the ice throwing machine group refers to a wind generating set which can only be damaged by the ice throwing of other wind generating sets and cannot cause ice throwing damage to the other wind generating sets.
Of course, there may be situations where a certain wind turbine generator set 100 may be both an ice slinger and an ice slinger throughout the wind farm.
In some embodiments, whether there is a risk of ice shedding of an adjacent wind turbine 100 may be determined based on the distance of ice shedding of blades of an adjacent wind turbine 100 in the wind farm and the distance between hubs of the adjacent wind turbine 100.
The blade ice throw distance is related to the diameter of the impeller of the wind turbine 100, the hub height, and the elevation head between adjacent wind turbine 100. Wherein, when judging high and low, the elevation drop between adjacent wind generating sets 100 needs to be considered. The blade ice throwing distance can be determined based on the impeller diameter and hub height of the high-positioned wind generating set 100 and the altitude drop between the high-positioned wind generating set 100 and the low-positioned wind generating set 100, and the calculation formula is as follows:
S ij，i＜j ＝1.5×(D i +H i +h ij ) (1)
wherein i and j are the serial numbers of the adjacent wind generating sets 100 positioned at the high position and the low position respectively, S ij D is the ice throwing distance of the blades of the adjacent wind generating set 100 i To the diameter of the impeller of the high-position wind turbine 100, H i For the hub height h of the high-positioned wind turbine generator system 100 ij Is the altitude drop between the high-positioned wind turbine 100 and the low-positioned wind turbine 100.
When the low swing determination is made, then there is no need to consider the elevation head between adjacent wind turbine generator sets 100. The blade ice throwing distance can be determined based on the impeller diameter and the hub height of the low-positioned wind generating set 100, and the calculation formula is as follows:
S ij，i＜j ＝1.5×(D j +H j ) (2)
wherein D is j To the diameter of the impeller of the low-level wind turbine 100, H j Is the hub height of the wind turbine 100 in the low position.
The distance between hubs of adjacent wind power units 100 may be calculated according to the following formula:
L ij，i＜j ＝getDistance(lat1，lon1，lat2，lon2) (3)
wherein L is ij，i＜j Lat1 and lon1 are geographical position information (e.g., latitude and longitude) of the wind turbine 100 located at a high position, and lat2 and lon2 are geographical position information (e.g., latitude and longitude) of the wind turbine 100 located at a low position, which are distances between hubs of the neighboring wind turbine 100.
When the distance L between hubs of adjacent wind generating sets 100 ij，i＜j Less than or equal to the blade ice throwing distance S of the adjacent wind generating set 100 ij，i＜j For example, the following formula is shown:
L ij，i＜j ＜＝S ij，i＜j (4)
it may be determined that there is a risk of ice-throwing between adjacent wind power units 100.
When the distance L between hubs of adjacent wind generating sets 100 ij，i＜j Greater than the blade ice throwing distance S of the adjacent wind generating set 100 ij，i＜j In this case, it is considered that there is no risk of ice-throwing between adjacent wind turbine generator systems 100.
For example, the information of the geographical position information (longitude and latitude), altitude, wind wheel diameter, hub height and the like of all the wind generating sets 100 in the wind farm can be input into the main controller of each wind generating set 100, so that the main controller of each wind generating set 100 can automatically calculate according to the internally stored program to determine the wind generating sets 100 with ice throwing risks, namely, determine the ice throwing set and the adjacent ice throwing machine sets possibly subject to the ice throwing risks of the ice throwing set.
In step S2, in the wind power generation sets 100 that have a risk of ice-shedding from each other, ice-shedding sectors of the ice-shedding machine set to the ice-shedding machine set are determined.
The ice-shedding sector of the ice-shedding machine group to the ice-shedding machine group can be determined based on the geographic position information of the ice-shedding machine group and the ice-shedding machine group. After the geographical position information of two adjacent wind turbine generator sets 100 is determined, whether the two adjacent wind turbine generator sets have the possibility of ice throwing risk is determined accordingly, and then the area of the ice throwing sector can be determined.
FIG. 3 discloses a schematic diagram of determining ice-shedding sectors of ice-shedding machine groups to ice-shedding machine groups based on geographical location information of ice-shedding machine groups and ice-shedding machine groups according to one embodiment of the invention. As shown in FIG. 3, in one embodiment, a circle may be drawn in space around the tower of wind turbine 100, with the impeller as a radius, and the wind turbine 100 yaw-ing. The circular trajectory is the yaw working area of the wind turbine generator system 100. For example, in fig. 3, the wind turbine generator system 100 No. a is an ice-throwing machine system, and the wind turbine generator system 100 No. B is an ice-throwing machine system. The circle center of the circle where the yaw circle of the ice throwing machine group A is positioned is O, and the circle center of the circle where the yaw circle of the ice throwing machine group B is positioned is O'. Two tangent lines, such as a first tangent line OM and a second tangent line ON, the range (α, α++mon) of the included angle between the first tangent line OM and the second tangent line ON is the angle interval of the ice throwing sector. The range (alpha, alpha + & gtMON).
With continued reference back to fig. 2, in step S3, information of icing sensors 105 provided in the wind farm is collected.
In some embodiments, the icing sensor comprises a single icing sensor 105 (as shown in fig. 4). The single icing sensor 105 may be located on a single wind park 100 (e.g., a number S wind park) at a particular location in the wind park. The single wind generating set at the specific position needs to have a certain representativeness, and can generally reflect the overall situation of the wind power plant. For example, a single icing sensor 105 may be provided on a centrally located wind park 100 in the wind park.
In step S4, it is determined whether or not ice is frozen based on the information of the ice sensor 105. In the case where the result of the judgment in step S4 is no, the process proceeds to step S5. In the case where the result of the judgment in step S4 is yes, the process proceeds to step S6.
The icing information detected by the icing sensor 105 may include, for example, but not limited to, icing status, icing rate, icing thickness, icing direction, and the like.
In step S5, when it is determined that there is no ice based on the information of the ice sensor 105, the wind turbine generator system 100 may continue to operate normally.
In step S6, when it is determined that ice is frozen based on the information of the ice sensor 105, the ice information detected by the ice sensor 105 is shared to each wind turbine generator set 100 in the wind farm.
FIG. 4 discloses a schematic diagram of information sharing by field control based on icing information detected by a single icing sensor 105 in accordance with an embodiment of the present invention. As shown in fig. 4, a single icing sensor 105 may be provided on a single wind turbine 100 (e.g., a number S wind turbine). When a single icing sensor 105 disposed on the S-th wind turbine detects that the S-th wind turbine is icing, the icing sensor 105 may transmit the detected icing information to a main controller 106 of the S-th wind turbine where the icing sensor is located, and then the main controller 106 transmits the icing information to a farm controller 300, and the farm controller 300 distributes the icing information to other wind turbines 100 in the wind farm, such as the wind turbines 1 to S-1 and the wind turbines s+1 to N-th wind turbines, where the icing sensor 105 is not installed. Therefore, all other wind generating sets 100 which are not provided with the icing sensor 105 in the wind power plant can obtain effective icing information, and further, all associated wind generating sets 100 can make effective judgment and take corresponding control measures later.
Referring back to fig. 2, in step S7, when the cabin position of the ice throwing unit enters the ice throwing sector determined in step S2, the ice throwing unit may be controlled to enter the sector ice throwing prevention management mode based on the ice formation information acquired in step S6.
Step S7 may further include steps S71 to S73. In step S71, the nacelle position of each wind turbine 100 is monitored. Since each wind turbine 100 is randomly located along the cable when installed, the north-facing operation is required for the heading direction (i.e., the nacelle position) of each wind turbine 100, so that the nacelle position of each wind turbine 100 can be unified in the same geographic coordinates, as shown in fig. 5.
The respective twist cable position gyawtwist position is monitored by the yaw encoder of each wind generating set 100, and then each wind generating set 100 is operated north-up, converting the twist cable position gyawtwist position of each wind generating set 100 into an absolute yaw position gYawPositon of each wind generating set 100, wherein,
gYawTwistPosition E (-Y°, +Y°). And, the 0 ° direction is random, wherein Y is a positive integer exceeding 10000;
gYawPositon epsilon (0, 360). And, 0 ° is facing north.
The nacelle position of the wind turbine 100 is an absolute yaw position.
Referring back to fig. 2, for the ice slinger assembly, its cabin position is monitored in real time. In step S72, it is determined whether the nacelle position of the ice-throwing unit enters the ice-throwing sector. That is, it is determined whether the cabin position of the ice-throwing unit is within the angle section (α, α++mon) of the ice-throwing sector shown in fig. 3.
In the case where the result of the judgment is yes, the process proceeds to step S73. And if the judgment result is negative, the process enters a step S5, and the ice throwing unit can continue to normally run.
In step S73, when the cabin position of the ice-throwing unit enters the ice-throwing sector, that is, when the cabin position of the ice-throwing unit is located in the angle interval (α, α++mon) of the ice-throwing sector shown in fig. 3, the ice-throwing unit may be controlled to enter the sector ice-throwing prevention management mode based on the ice formation information obtained in step S6.
FIG. 6 discloses specific steps for controlling an ice slinger group to enter a sector ice slinger management mode based on ice formation information according to one embodiment of the invention. As shown in fig. 6, in some embodiments, controlling the ice-throwing machine group to enter the sector ice-throwing prevention management mode based on the ice formation information in step S73 may include steps S731 to S735.
In step S731, the icing information includes an icing thickness, which may be monitored.
In step S732, it is determined whether the icing thickness is less than a predetermined icing thickness upper limit giniticethicknesshighlight.
If the determination result in step S732 is no, the process proceeds to step S733. In step S733, when the ice thickness exceeds the predetermined ice thickness upper limit giniticethicknesshighlight, the ice throwing machine group is controlled to perform a stop operation.
In some embodiments, in the case where the determination in step S732 is yes, the process may proceed to step S734. In step S734, when the icing thickness is less than the icing thickness upper limit gInitIceThicknessHighLim, then it is continued to determine whether the icing thickness is greater than the predetermined icing thickness lower limit gInitIceThicknessLowLim. If the result of the determination is no, that is, if the icing thickness does not reach the predetermined icing thickness lower limit gInitIceThicknessLowLim, the process will continue to return to step S5, and the ice throwing machine group may be controlled to continue normal operation.
When the determination result in step S734 is yes, that is, when the icing thickness is smaller than the predetermined icing thickness upper limit gInitIceThicknessHighLim and greater than the predetermined icing thickness lower limit gInitIceThicknessLowLim, the ice throwing machine group may be controlled to perform the power reducing operation. For example, the power of the ice throwing unit can be reduced to 30% of the original power.
The method for controlling the ice throwing machine group to enter the sector ice throwing prevention management mode can further comprise step S736 and step S737.
Since the yaw of the wind turbine generator system 100 is always automatically operated, the nacelle position of the ice-throwing machine group can be continuously monitored after the ice-throwing machine group performs the stop operation of step S733 or the power-down operation of step S735. In step S736, it is continuously monitored whether the cabin position of the ice-slinging unit exits the ice-slinging sector. If the result of the determination is no, the sector ice-throwing prevention management mode is continuously executed for the ice throwing machine group, and the process is continuously returned to the shutdown operation of step S733 or the power-down operation of step S735. If the result of the judgment is yes, the process advances to step S737. In step S737, when the change of the wind direction makes the nacelle position of the ice-throwing unit yaw-rotate out of the angle interval (α, α++mon) of the ice-throwing sector, the ice-throwing machine unit is automatically controlled to exit the sector ice-throwing prevention management mode.
Of course, after the ice throwing machine group executes the shutdown operation of step S733 or the power reduction operation of step S735, if the monitored icing thickness is smaller than the icing thickness lower limit gInitIceThicknessLowLim, the ice throwing machine group may also be automatically controlled to exit the sector ice throwing prevention management mode.
After the ice throwing machine unit exits from the sector ice throwing prevention management mode, the ice throwing machine unit can normally automatically wind. The ice throwing unit can be switched from a power-down mode or a shutdown state to a full-power operation mode, and the ice throwing unit continues to normally operate.
Because the sector ice-shedding management mode controls yaw motion after icing conditions, the power deviation between actual power and theoretical power to be generated is also due to the influence on the wind turbine 100 after icing. Therefore, the anti-ice-throwing control method of the wind generating set of the embodiment of the invention can further comprise the following steps: when the information of the icing sensor 105 is used for judging that icing is performed and a fault code with the power deviation exceeding a preset value is not reported, controlling the ice throwing machine group to execute a sector ice throwing prevention management mode when the cabin position of the ice throwing machine group enters an ice throwing sector; when the fault code with the power deviation exceeding the preset value is reported, the ice throwing machine group is controlled to execute the shutdown grade with the power deviation exceeding the preset value preferentially.
The ice-throwing prevention control method for the wind generating set can minimize the possibility of damage to ice throwing of two adjacent wind generating sets 100 with dangerous distance positions; the icing state is measured more finely, and the generated energy when the wind generating set 100 is frozen is ensured through fine control, so that unnecessary loss is reduced.
According to the anti-ice-throwing control method for the wind generating set, provided by one or more embodiments of the invention, through the icing sensor 105 arranged in the wind power plant (for example, a single icing sensor 105 is arranged on a single wind generating set), the sharing of icing information among all the wind generating sets 100 in the whole wind power plant is realized by using a field control mode, the technology is novel, the purchasing quantity of the icing sensor is saved, and the method is more economical and saves the cost.
The embodiment of the invention also provides an anti-ice-throwing control device 200 of the wind generating set. Fig. 7 discloses a schematic block diagram of a wind turbine generator system ice-slinging prevention control device 200 according to an embodiment of the invention. As shown in fig. 7, the wind turbine anti-ice-flick control device 200 may include one or more processors 201 for implementing the wind turbine anti-ice-flick control method described in any of the embodiments above. In some embodiments, the wind turbine generator set ice-whipping prevention control apparatus 200 may include a computer readable storage medium 202, and the computer readable storage medium 202 may store a program that may be called by the processor 201 and may include a nonvolatile storage medium. In some embodiments, the wind turbine generator set ice-slinging prevention control device 200 may include a memory 203 and an interface 204. In some embodiments, the wind turbine generator system ice-throwing prevention control device 200 according to the embodiment of the invention may further include other hardware according to practical applications.
The anti-ice-throwing control device 200 of the wind generating set of the embodiment of the invention has similar technical effects as the anti-ice-throwing control method of the wind generating set, and therefore, the description thereof is omitted herein.
The embodiment of the invention also provides a computer readable storage medium. The computer readable storage medium stores a program which, when executed by a processor, implements the anti-ice-throwing control method of the wind turbine generator set described in any of the above embodiments.
Embodiments of the invention may take the form of a computer program product embodied on one or more storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having program code embodied therein. Computer-readable storage media include both non-transitory and non-transitory, removable and non-removable media, and information storage may be implemented by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer readable storage media include, but are not limited to: new types of memory, such as phase change memory/resistive random access memory/magnetic memory/ferroelectric memory (PRAM/RRAM/MRAM/FeRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium, may be used to store information that may be accessed by the computing device.
The method and the system for controlling the ice-throwing prevention of the wind generating set and the computer readable storage medium provided by the embodiment of the invention are described in detail. Specific examples are applied to illustrate the anti-ice-throwing control method and the system thereof for the wind generating set and the computer readable storage medium, and the above description of the embodiments is only for helping to understand the core idea of the invention, and is not intended to limit the invention. It should be noted that it will be apparent to those skilled in the art that various changes and modifications can be made herein without departing from the spirit and principles of the invention, which should also fall within the scope of the appended claims.
Claims (14)
1. A wind generating set ice-throwing prevention control method is characterized in that: comprising the following steps:
determining wind generating sets with ice throwing risks in a wind power plant, wherein the wind generating sets with ice throwing risks comprise ice throwing sets and ice throwing machine sets;
in the wind generating sets with the ice throwing risks, determining ice throwing sectors from the ice throwing machine set to the ice throwing machine set;
collecting information of an icing sensor arranged in the wind power plant;
when ice is determined based on the information of the ice sensor, sharing the ice information detected by the ice sensor to each wind generating set in the wind power plant; and
when the cabin position of the ice throwing unit enters the ice throwing fan, the ice throwing unit is controlled to enter a sector ice throwing prevention management mode based on the ice formation information.
2. The control method according to claim 1, characterized in that: the icing sensor comprises a single icing sensor which is arranged on a single wind generating set at a specific position in the wind power plant.
3. The control method according to claim 2, characterized in that: when ice is determined based on the information of the ice sensor, sharing the ice information detected by the ice sensor to each wind generating set in the wind farm includes:
when a single icing sensor arranged on the single wind power generator set detects that the single wind power generator set is frozen, the icing sensor transmits the icing information to a main controller of the single wind power generator set;
transmitting, by the main controller, the icing information to a field controller; a kind of electronic device with high-pressure air-conditioning system
And distributing the icing information to other wind generating sets which are not provided with icing sensors in the wind power plant by the plant controller.
4. The control method according to claim 1, characterized in that: the wind generating set for determining the ice throwing risk of each other in the wind power plant comprises the following components:
and determining whether the ice throwing risk exists in the adjacent wind generating set or not based on the ice throwing distance of the blades of the adjacent wind generating set in the wind power plant and the distance between hubs of the adjacent wind generating set.
5. The control method according to claim 4, characterized in that: when the high-swing low judgment is performed, determining the ice-swing distance of the blade based on the impeller diameter and the hub height of the high-position wind generating set and the altitude drop between the high-position wind generating set and the low-position wind generating set; a kind of electronic device with high-pressure air-conditioning system
And when the low-swing height judgment is performed, determining the ice-swing distance of the blades based on the impeller diameter and the hub height of the low-positioned wind generating set.
6. The control method according to claim 4, characterized in that: and when the distance between the hubs of the adjacent wind generating sets is smaller than or equal to the ice throwing distance of the blades of the adjacent wind generating sets, determining that ice throwing risks exist between the adjacent wind generating sets.
7. The control method according to claim 1, characterized in that: the method for determining the ice throwing sector from the ice throwing machine group to the ice throwing machine group comprises the following steps:
and determining ice throwing sectors from the ice throwing machine group to the ice throwing machine group based on the geographical position information of the ice throwing machine group and the ice throwing machine group.
8. The control method according to claim 7, characterized in that: the determining ice throwing sector from the ice throwing machine group to the ice throwing machine group based on the geographical position information of the ice throwing machine group and the ice throwing machine group comprises the following steps:
taking a tower barrel of the wind generating set as a center, taking an impeller as a radius, and drawing a circle in space by yaw of the wind generating set; a kind of electronic device with high-pressure air-conditioning system
And calculating the included angle range between the circle center of the circle where the ice throwing unit is yawed and the first tangent line and the second tangent line of the circle where the ice throwing unit is yawed and the included angle range is the angle interval of the ice throwing sector based on the geographical position information of the ice throwing unit and the ice throwing unit.
9. The control method according to claim 1, characterized in that: the icing information comprises icing thickness, and the controlling the ice throwing machine group to enter a sector ice throwing prevention management mode based on the icing information comprises the following steps:
when the icing thickness is smaller than the upper icing thickness limit, controlling the ice throwing machine group to perform power reduction operation; a kind of electronic device with high-pressure air-conditioning system
And when the icing thickness exceeds the upper icing thickness limit, controlling the ice throwing machine to stop operation.
10. The control method according to claim 9, characterized in that: further comprises:
when the cabin position of the ice throwing unit is not in the range of the angle interval of the ice throwing sector or the icing thickness is smaller than the icing thickness lower limit, automatically controlling the ice throwing unit to withdraw from the sector ice throwing prevention management mode.
11. The control method according to claim 1, characterized in that: further comprises:
when the information of the icing sensor judges that icing is performed and a fault code with power deviation exceeding a preset value is not reported, controlling the ice throwing machine set to execute the sector ice throwing prevention management mode when the cabin position of the ice throwing machine set enters the ice throwing sector; a kind of electronic device with high-pressure air-conditioning system
And when the fault code with the power deviation exceeding the preset value is reported, controlling the ice throwing machine group to execute the shutdown grade with the power deviation exceeding the preset value preferentially.
12. The control method according to claim 1, characterized in that: further comprises:
monitoring the nacelle position of each wind power generator set, comprising:
monitoring, by yaw encoders of the respective wind turbine generator sets, respective cable twisting positions; a kind of electronic device with high-pressure air-conditioning system
And performing north-facing operation on each wind generating set, and converting the torsion cable position of each wind generating set into an absolute yaw position of each wind generating set, wherein the cabin position is the absolute yaw position.
13. A wind turbine anti-ice-throwing control device, comprising one or more processors configured to implement the wind turbine anti-ice-throwing control method of any one of claims 1-12.
14. A computer-readable storage medium, characterized in that a program is stored thereon, which program, when being executed by a processor, implements a wind turbine generator set ice-whipping prevention control method as claimed in any one of claims 1-12.
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