CN115898760A - Wind turbine generator load control method and device, computer readable medium and equipment - Google Patents
Wind turbine generator load control method and device, computer readable medium and equipment Download PDFInfo
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Abstract
The application provides a wind turbine load control method, a wind turbine load control device, a computer readable medium and wind turbine load control equipment, and relates to the technical field of wind power generation, wherein the method comprises the following steps: acquiring the ambient wind speed and the ambient wind direction at the current moment in real time; under the condition that the wind speed and the wind direction meet the preset wind conditions, respectively matching the wind speed and the wind direction with a preset wind speed threshold value and a preset wind direction threshold value; and if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator to be a target torque, wherein the target torque is lower than the preset output torque of the wind turbine generator. This application can be through the environmental wind speed and the wind direction that acquire wind turbine generator system in real time to current wind speed and wind direction are confirming and are satisfying the predetermined wind regime, and when wind speed and wind direction were greater than predetermined wind speed threshold value and wind direction threshold value respectively, control wind turbine generator system's output torque reduces, with the load that reduces wind turbine generator system, thereby reduce extreme wind regime to the loss of wind turbine generator system part, prolong wind turbine generator system part's life.
Description
Technical Field
The application relates to the technical field of wind power generation, in particular to a wind turbine load control method, a wind turbine load control device, a computer readable medium and a terminal device.
Background
With the increasing number of the wind driven generator assembling machines and the increasing capacity of single machines, higher requirements are put forward on the adaptability and the reliability of the wind driven generator set. At present, GL and IEC regulations, which are main design regulations of wind generating set load design, clearly require that extreme coherent gust ECD wind conditions with direction changes need to be considered in the design, and when the generating set bears gusts of extreme continuous gusts with direction changes and extremely large wind superposition direction changes, wind speed and wind direction change violently, the working condition causes rapid changes of wind generating set component loads and generates large influence on the service life of fan components, so that the adjustment of a control strategy is necessary to the operation of the generating set, and the load of the generating set is reduced as much as possible under the condition of the extreme wind conditions.
Content of application
The embodiment of the application aims to provide a wind turbine load control method, a wind turbine load control device, a computer readable medium and equipment, so as to solve the problem that the load of a wind turbine is difficult to reduce under the condition of an extreme wind condition in the prior art.
In order to achieve the above object, a first aspect of the present application provides a wind turbine load control method, including:
acquiring the ambient wind speed and the ambient wind direction at the current moment in real time;
under the condition that the wind speed and the wind direction meet the preset wind conditions, respectively matching the wind speed and the wind direction with a preset wind speed threshold value and a preset wind direction threshold value;
and if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator to be a target torque, wherein the target torque is lower than the preset output torque of the wind turbine generator.
Optionally, after controlling the output torque of the wind turbine generator to be the target torque, the method further includes:
and continuously acquiring the ambient wind speed and the wind direction until the acquired wind speed is not more than the wind speed threshold value and/or the acquired wind direction is not more than the wind direction threshold value, and controlling the output torque of the wind turbine generator to be the preset output torque.
Optionally, the wind speed threshold includes a first wind speed threshold and a second wind speed threshold, the first wind speed threshold is smaller than the second wind speed threshold, the wind direction threshold includes a first wind direction threshold and a second wind direction threshold, and the first wind direction threshold is smaller than the second wind direction threshold; if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator to be a target torque, including:
if the wind speed is greater than the first wind speed threshold and smaller than the second wind speed threshold, and the wind direction is greater than the first wind direction threshold and smaller than the second wind direction threshold, controlling the output torque of the wind turbine generator to be a first target torque;
if the wind speed is greater than the second wind speed threshold value and the wind direction is greater than the second wind direction threshold value, controlling the output torque of the wind turbine generator to be a second target torque;
the first target torque is greater than the second target torque, and the first target torque is less than the preset output torque.
Optionally, the step of determining whether the wind speed and the wind direction meet a preset wind condition comprises:
acquiring historical wind speeds and historical wind directions of n continuous historical moments before the current moment;
determining the wind speed difference between the wind speed and each historical wind speed, and determining the wind direction difference between the wind direction and each historical wind direction;
and if the wind speed difference is larger than the preset wind speed difference threshold value and the wind direction difference is larger than the preset wind direction difference threshold value, determining that the wind speed and the wind direction meet the preset wind condition.
Optionally, the step of determining whether the wind speed and the wind direction meet a preset wind condition comprises:
acquiring historical wind speeds and historical wind directions of n continuous historical moments before the current moment;
determining the average wind speed of all historical wind speeds and determining the average wind direction of all historical wind directions;
determining a wind speed difference between the wind speed and the average wind speed, and determining a wind direction difference between the wind direction and the average wind direction;
matching the wind speed difference with a preset wind speed difference threshold value, and matching the wind direction difference with a preset wind direction difference threshold value;
and if the wind speed difference is greater than the wind speed difference threshold value and the wind direction difference is greater than the wind direction difference threshold value, determining that the wind speed and the wind direction meet a preset wind condition.
Optionally, the step of determining whether the wind speed and the wind direction meet a preset wind condition comprises:
matching the wind speed and the wind direction with a preset wind condition table or a preset wind condition curve, and if the wind speed and the wind direction can be matched with the wind condition table or the wind condition curve, determining that the wind speed and the wind direction meet the preset wind condition;
the wind condition table or the wind condition curve at least comprises a mapping relation between different wind speeds meeting preset wind conditions and corresponding wind directions.
Optionally, the preset wind condition is an ECD wind condition, the preset wind condition table is an ECD wind condition table, and the preset wind condition curve is an ECD wind condition curve;
the ECD wind condition table or the ECD wind condition curve at least comprises a mapping relation between different wind speeds meeting the ECD wind conditions and corresponding wind directions.
The second aspect of the present application provides a wind turbine load control device, including:
the data acquisition module is configured to acquire the ambient wind speed and the ambient wind direction at the current moment in real time;
the output torque control module is configured to match the wind speed and the wind direction with a preset wind speed threshold and a preset wind direction threshold respectively under the condition that the wind speed and the wind direction are determined to meet a preset wind condition;
and if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator to be a target torque, wherein the target torque is lower than the preset output torque of the wind turbine generator.
A third aspect of the present application provides a computer-readable medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the wind turbine load control method described above.
The fourth aspect of the present application provides a terminal device, which includes a memory, a processor, and a computer program that is stored in the memory and is executable on the processor, where the processor implements the wind turbine load control method when executing the computer program.
The implementation mode that this application provided has following beneficial effect:
this application can be through the environmental wind speed and the wind direction that acquire wind turbine generator system in real time to current wind speed and wind direction are confirming according to the wind speed and the wind direction that acquire in real time and are satisfying the preset wind regime, and when wind speed and wind direction were greater than preset wind speed threshold value and wind direction threshold value respectively, control wind turbine generator system's output torque reduces, with the load that reduces wind turbine generator system, thereby reduce extreme wind regime to the loss of wind turbine generator system part, prolong wind turbine generator system part's life.
Additional features and advantages of embodiments or examples of the present application are described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the detailed description serve to explain the embodiments of the application and not to limit the embodiments of the application. In the drawings:
fig. 1 schematically illustrates a method flowchart of a wind turbine load control method according to an embodiment of the present application;
FIG. 2 schematically illustrates an ECD wind condition graph of an embodiment of the present application;
FIG. 3 schematically shows a graph of a variation of the wind turbine power according to an embodiment of the present application;
FIG. 4 schematically shows a graph of a wind turbine pitch angle change according to an embodiment of the present application;
FIG. 5 schematically illustrates a wind turbine generator output torque variation graph according to an embodiment of the present application;
FIG. 6 schematically shows a wind turbine yaw load variation graph according to an embodiment of the present application;
FIG. 7 is a schematic block diagram of a wind turbine load control apparatus according to an embodiment of the present application;
fig. 8 schematically shows a structural diagram of a terminal device according to an embodiment of the present application.
Description of the reference numerals
10-terminal device, 100-processor, 101-memory, 102-computer program.
Detailed Description
The following describes in detail specific embodiments of the present application with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating the embodiments of the application, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1, a first aspect of the present embodiment provides a wind turbine load control method, including:
s100, acquiring the ambient wind speed and the ambient wind direction at the current moment in real time;
s200, respectively matching the wind speed and the wind direction with a preset wind speed threshold and a preset wind direction threshold under the condition that the wind speed and the wind direction meet the preset wind condition;
and S300, if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator to be a target torque, wherein the target torque is lower than the preset output torque of the wind turbine generator.
Therefore, the environmental wind speed and the wind direction of the wind turbine can be acquired in real time, the current wind speed and the current wind direction are determined according to the real-time acquired wind speed and the real-time acquired wind direction to meet the preset wind condition, and when the wind speed and the wind direction are respectively greater than the preset wind speed threshold value and the preset wind direction threshold value, the output torque of the wind turbine is controlled to be reduced, the load of the wind turbine is reduced, the loss of the wind turbine component under the extreme wind condition is reduced, and the service life of the wind turbine component is prolonged.
Specifically, the ambient wind speed and the wind direction of the wind turbine can be acquired through an anemoscope and a anemoscope which are arranged on the wind turbine. The anemoscope is a device for measuring the air flow rate of the wind turbine generator in the current environment, and the anemoscope is a device for measuring the air flow direction of the wind turbine generator in the current environment. The anemoscope and the anemoscope may be pre-installed at different locations of the wind turbine, for example, at a nacelle of the wind turbine, etc., one or more anemometers are provided to monitor a current wind speed borne by the wind turbine. In the embodiment, in order to improve the accuracy of the collected wind speed, the average value of the wind speed data collected by each anemometer may be used as the ambient wind speed at the current time, or a corresponding weight may be configured for each anemometer according to historical experience, and the ambient wind speed at the current time may be calculated by performing weighted average on the wind speed data collected by all anemometers at the current time. Similarly, one or more anemometers can be arranged in the wind power generator set in advance to monitor the environmental wind direction. In the present embodiment, in order to improve the accuracy of the collected wind direction, the average value of the wind direction data collected by each anemoscope may be used as the current environmental wind direction, or corresponding weights may be configured for each anemoscope according to historical experience, and the current environmental wind direction may be calculated by performing weighted average on the wind direction data collected by all anemoscopes at the current time. It is understood that the wind direction data collected by the anemoscope is an angle value, which can represent the direction and angle of the wind. For example, taking the wind direction as 16 directions as an example, the corresponding relationship between the wind direction and the angle range may be: 348.76-11.25 correspond to the north of the azimuth, 11.26-33.75 correspond to the north of the azimuth, 33.76-56.25 correspond to the north of the azimuth, 56.26-78.75 correspond to the north of the azimuth, 78.76-101.25 correspond to the east of the azimuth, 101.26-123.75 correspond to the south of the east, 123.76-146.25 correspond to the south of the azimuth, 146.26-168.75 correspond to the south of the east, 168.76-191.25 correspond to the south of the azimuth, 191.26-213.75 correspond to the south of the azimuth, 213.76-236.25 correspond to the south of the azimuth, 236.26-258.75 correspond to the south of the west of the azimuth, 258.76-281.25 correspond to the west of the azimuth, 281.26-303.75 correspond to the west of the azimuth, 303.76-326.25 correspond to the west of the azimuth, and 348.26-75 correspond to the north of the azimuth. It should be understood that the above is only an example of the corresponding relationship between the wind direction position and the angle range, and the corresponding relationship between the wind direction position and the angle range may be different according to different requirements of the anemoscope, for example, the wind direction position may also be divided into 8, which is not limited herein.
After the wind speed and the wind direction at the current moment are determined, whether the acquired wind speed and the acquired wind direction meet preset wind conditions is further determined. In order not to affect the normal output of the wind turbine, the condition of the extreme wind condition is predetermined as a preset wind condition, for example, if the change slope of the obtained current wind speed and the obtained wind direction compared with the historical wind speed and the obtained wind direction is greater than a preset threshold value, it indicates that the environmental wind condition of the wind turbine has changed greatly and may damage the wind turbine, and it is determined that the preset wind condition is satisfied when the change slope of the current wind speed and the obtained wind direction compared with the historical wind speed and the obtained wind direction is greater than the preset threshold value.
In one specific example of the present embodiment, the step of determining whether the wind speed and the wind direction satisfy the preset wind condition includes:
s210, acquiring historical wind speeds and historical wind directions of n continuous historical moments before the current moment; for example, it is set that the ambient wind speed and the ambient wind direction are collected once per second, and after the current wind speed and the current wind direction are obtained, historical wind speeds and historical wind directions at 9 consecutive historical moments before the current moment are obtained at the same time, for example, the collection moment of the current wind speed is 10 th second, the current wind speed is V10, the obtained historical wind speeds V9-V1 respectively represent wind speeds collected from 9 th second to 1 st second, the collection process of the historical wind directions is the same as the historical wind speed, and details are not described here.
S220, determining the wind speed difference between the wind speed and each historical wind speed, and determining the wind direction difference between the wind direction and each historical wind direction; and respectively calculating the wind speed difference value between the current wind speed and each collected historical wind speed, and respectively calculating the wind direction difference value between the current wind direction and each collected historical wind direction.
And S230, if the wind speed difference is larger than the preset wind speed difference threshold value and the wind direction difference is larger than the preset wind direction difference threshold value, determining that the wind speed and the wind direction meet the preset wind condition. And respectively comparing all the calculated wind speed difference values with a preset wind speed difference threshold value, judging whether the calculated wind speed difference is larger than the wind speed difference threshold value, such as 15m/s, if the wind speed difference is larger than the wind speed difference threshold value, indicating that the current wind speed has larger change in 10 seconds, further respectively comparing all the calculated wind direction difference values with the preset wind direction difference threshold value, judging whether the calculated wind direction difference is larger than the wind direction difference threshold value, if any wind direction difference is larger than the wind direction difference threshold value, indicating that the change quantity of the current wind speed and the wind direction in 10 seconds reaches the limit value of a preset extreme wind condition, and determining that the current wind speed and the wind direction meet the preset wind condition.
In another specific example of this embodiment, the step of determining whether the wind speed and the wind direction satisfy the preset wind conditions comprises:
s240, acquiring historical wind speeds and historical wind directions of n continuous historical moments before the current moment; referring to step S210, this process is not described herein.
S250, determining the average wind speed value of all historical wind speeds and determining the average wind direction value of all historical wind directions; and averaging all the acquired historical wind speeds, calculating to obtain a wind speed average value of the historical wind speeds, and meanwhile averaging all the acquired historical wind directions to obtain a wind direction average value of the historical wind directions.
S260, determining a wind speed difference between the wind speed and the average wind speed, and determining a wind direction difference between the wind direction and the average wind direction; and respectively calculating the wind speed difference between the current wind speed and the average value of the wind speeds and the wind direction difference between the current wind direction and the average value of the wind directions.
S270, matching the wind speed difference with a preset wind speed difference threshold value, and matching the wind direction difference with a preset wind direction difference threshold value; and if the wind speed difference is greater than the wind speed difference threshold value and the wind direction difference is greater than the wind direction difference threshold value, determining that the wind speed and the wind direction meet the preset wind condition. Similarly, if the calculated wind speed difference is greater than the wind speed difference threshold and the wind direction difference is greater than the wind direction difference threshold, it indicates that the variation of the current ambient wind speed and the wind direction within a preset time, for example, within 10s, both reach the limit value of the preset extreme wind condition, and it is determined that the current wind speed and the current wind direction meet the preset wind condition.
In another specific example of this embodiment, the step of determining whether the wind speed and the wind direction satisfy the preset wind condition further comprises:
s280, matching the wind speed and the wind direction with a preset wind condition table or a preset wind condition curve, and determining that the wind speed and the wind direction meet the preset wind condition if the wind speed and the wind direction can be matched with the wind condition table or the wind condition curve; the wind condition table or the wind condition curve at least comprises a mapping relation between different wind speeds meeting preset wind conditions and corresponding wind directions. The preset wind condition is an ECD wind condition, the preset wind condition table is an ECD wind condition table, and the preset wind condition curve is an ECD wind condition curve; the ECD wind condition table or the ECD wind condition curve at least comprises the mapping relation between different wind speeds meeting the ECD wind conditions and corresponding wind directions.
As shown in fig. 2, the ECD wind condition means that the wind speed suddenly increases by 15m/s within 10s when the wind turbine generator is in operation, and the wind direction changes within the 10s synchronously, and in the embodiment, the change value of the wind speed and the change value of the wind direction of the ECD wind condition meet the IEC specification. In the present embodiment, a wind condition table or a wind condition curve satisfying the ECD wind conditions is constructed in advance, wherein the ECD wind condition table or the ECD wind condition curve includes a corresponding relationship between different wind speeds and corresponding wind directions under the ECD wind conditions, for example, taking the ECD wind condition curve as an example, the ECD wind condition curve can be expressed as a variation trend of the wind speed and the wind direction under the ECD wind conditions. For example, the preset ECD wind condition curve shows that the wind speed changes by 15m/s from 10 seconds to 20 seconds, the wind speed remains unchanged after 20 seconds, the wind direction changes by 60 degrees from 10 seconds to 20 seconds, and the wind direction remains unchanged after 20 seconds, and then the current wind speed and the current wind direction are matched with the ECD wind condition curve to judge whether the current wind speed and the current wind direction meet the relative relationship between the wind speed and the wind direction at a certain moment on the ECD wind condition curve. For example, the current wind speed and direction can be directly matched with an ECD wind condition curve, for example, the current wind speed is 28m/s and the wind direction is 60 degrees, and in the ECD wind condition curve, at 20 seconds, the wind speed is 28m/s and the wind direction is 60 degrees, and the current wind speed and direction are the same as the current wind speed and direction, so that the current wind speed and direction are considered to meet the ECD wind condition; for another example, the current wind speed and wind direction variation may be matched with an ECD wind condition curve, for example, the ECD wind condition curve shows that the wind speed rises by 15m/s from 10 th to 20 th seconds, the wind direction changes by 60 ° from 10 th to 20 th seconds, it is determined whether the current wind speed changes by 15m/s within the previous 10 seconds, and the current wind direction changes by 60 ° within the previous 10 seconds, if the current wind speed and wind direction respectively satisfy 15m/s and 60 ° within the previous 10 seconds, it is determined that the current wind speed and wind direction satisfy the ECD wind condition, it may be understood that, when it is determined whether the current wind speed and wind direction satisfy the ECD wind condition, it may also be determined that the current wind speed and wind direction respectively do not less than 15m/s and 60 ° within the previous 10 seconds, it is determined that the current wind speed and wind direction satisfy the ECD wind condition; for another example, the sum of the current wind speed and the current wind direction may be obtained by summing the current wind speed and the current wind direction, and the obtained sum may be matched with the ECD wind condition curve, where the sum of the current wind speed and the current wind direction is 88, and in the ECD wind condition curve, at 20 seconds, the wind speed is 28m/s, the wind direction is 60 °, the sum of the current wind speed and the wind direction is 88, and the sum is the same as the sum of the current wind speed and the current wind direction, and the current wind speed and the current wind direction are considered to satisfy the ECD wind condition.
Under the condition that the current wind speed and the current wind direction meet the preset wind conditions such as ECD wind conditions, the current wind speed and the current wind direction are further compared with a preset wind speed threshold and a preset wind direction threshold respectively, wherein the preset wind speed threshold and the preset wind direction threshold can be determined according to different limit values of the wind turbine generator, if the current wind speed is larger than the preset wind speed threshold and the current wind direction is larger than the preset wind direction threshold, it is judged that the current wind conditions possibly affect the operation of the wind turbine generator, at the moment, the output torque of the wind turbine generator is reduced, and the wind turbine generator is controlled to output a target torque lower than the preset output torque, for example, the target torque can be 50% or 75% of the preset output torque. It can be understood that the control of the output torque of the wind turbine is usually realized by controlling the pitch angle of the wind turbine, and the pitch angle of the wind turbine is usually realized by performing pitch PI control on the wind turbine. For example, if it is determined that the current wind speed and the current wind direction meet the preset wind condition and both the current wind speed and the current wind direction exceed the wind speed limit value and the wind direction limit value according to monitoring of the current wind speed and the current wind direction, and the output torque needs to be reduced to 75% of the preset output torque, the target torque, that is, 75% of the preset output torque, is used as an output target of a preset PI algorithm, and the pitch angle of the wind turbine generator is adjusted according to the preset PI algorithm, so that control over the output torque of the wind turbine generator is achieved. The PI algorithm and the pitch PI control process are the prior art, and are not limited herein. Taking a 10MW wind turbine as an example, as shown in fig. 3 to 6, the corresponding curve changes of power, pitch angle, output torque and yaw load of the wind turbine are respectively shown when the output torque or output power of the wind turbine is not limited, is limited by 75% and is limited by 50%.
In order to ensure the normal output of the wind turbine, in this embodiment, after controlling the output torque of the wind turbine as the target torque, the method further includes: and continuously acquiring the ambient wind speed and the wind direction of the wind turbine generator until the acquired wind speed is not more than a wind speed threshold and/or the acquired wind direction is not more than a wind direction threshold, and controlling the output torque of the wind turbine generator to be the preset output torque. In the embodiment, after the output torque of the wind turbine is adjusted, the real-time wind speed and the wind direction are continuously monitored, if the acquired real-time wind speed is not greater than a wind speed threshold value or the real-time wind direction is not greater than a wind direction threshold value, the current wind condition is considered not to influence the wind turbine, and in order to reduce the influence on the normal output of the wind turbine, at the moment, the preset output torque is used as the output torque of the wind turbine, and the pitch angle of the wind turbine is adjusted through the variable pitch PI control, so that the wind turbine is controlled to output with the preset output torque; or if the collected real-time wind speed is not greater than the wind speed threshold and the real-time wind direction is not greater than the wind direction threshold, controlling the wind turbine generator to output the wind speed threshold and the wind direction threshold according to the preset output torque. Through the real-time monitoring of the environmental wind speed and the wind direction of the wind turbine generator, the output torque of the wind turbine generator is dynamically controlled according to the wind conditions of the environmental wind speed and the wind direction, so that the load of the wind turbine generator can be effectively reduced, and the service life of the wind turbine generator is prolonged.
In a specific example of the present embodiment, the wind speed threshold includes a first wind speed threshold and a second wind speed threshold, the first wind speed threshold is smaller than the second wind speed threshold, the wind direction threshold includes a first wind direction threshold and a second wind direction threshold, and the first wind direction threshold is smaller than the second wind direction threshold; if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator as a target torque, comprising:
if the wind speed is greater than the first wind speed threshold and less than the second wind speed threshold, and the wind direction is greater than the first wind direction threshold and less than the second wind direction threshold, controlling the output torque of the wind turbine generator to be a first target torque; if the wind speed is greater than a second wind speed threshold value and the wind direction is greater than a second wind direction threshold value, controlling the output torque of the wind turbine generator to be a second target torque; the first target torque is larger than the second target torque, and the first target torque is smaller than the preset output torque.
In order to further accurately control the output torque of the wind turbine generator, reduce the load of the wind turbine generator and reduce the influence of the output torque on the normal output of the wind turbine generator, the embodiment also adjusts the output torque of the wind turbine generator according to different limit value intervals of the current wind speed and the current wind direction. For example, if the first wind speed threshold is 25m/s, the second wind speed threshold is 30m/s, the first wind direction threshold is 60 ° and the second wind direction threshold is 70 °, if the current wind speed is 26m/s and the wind direction is 65 °, the current wind speed is greater than the first wind speed threshold but less than the second wind speed threshold, and the current wind direction is greater than the first wind direction threshold and less than the second wind direction threshold, the output torque of the wind turbine is controlled to be 75% of the preset output torque; and if the current wind speed is 32m/s and the wind direction is 75 degrees, the current wind speed is greater than the second wind speed threshold value and the current wind direction is greater than the second wind direction threshold value, the output torque of the wind turbine generator is further reduced, and the output torque of the wind turbine generator is controlled to be 50% of the preset output torque. It is understood that the division of the wind speed and wind direction thresholds includes but is not limited to the above manner, for example, the wind speed threshold and the wind direction threshold may be further divided into 3 levels according to the requirement, for example, the wind speed threshold further includes a third wind speed threshold, and it is greater than the second wind speed threshold, which is not limited herein. Meanwhile, the method for controlling the output torque of the wind turbine generator is not limited to the above method, for example, if the current wind speed is greater than the first wind speed threshold and less than the second wind speed threshold, or the current wind direction is greater than the first wind direction threshold and less than the second wind direction threshold, the output torque of the wind turbine generator is controlled to be 75% of the preset output torque; and if the front wind speed is greater than the second wind speed threshold value or the current wind direction is greater than the second wind direction threshold value, controlling the output torque of the wind turbine generator to be 50% of the preset output torque.
As shown in fig. 7, a second aspect of the present application provides a wind turbine load control device, including:
the data acquisition module is configured to acquire the ambient wind speed and the ambient wind direction of the wind turbine generator at the current moment in real time;
the output torque control module is configured to match the wind speed and the wind direction with a preset wind speed threshold and a preset wind direction threshold respectively under the condition that the wind speed and the wind direction meet the preset wind conditions;
and if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator to be a target torque, wherein the target torque is lower than the preset output torque of the wind turbine generator.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules, so as to perform all or part of the functions described above. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
A third aspect of the present application provides a computer-readable medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the wind turbine load control method described above.
The fourth aspect of the present application provides a terminal device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the wind turbine generator load control method is implemented.
Fig. 8 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in fig. 8, the terminal device 10 of this embodiment includes: a processor 100, a memory 101, and a computer program 102 stored in the memory 101 and operable on the processor 100. The steps in the above-described method embodiments are implemented when the processor 100 executes the computer program 102. Alternatively, the processor 100, when executing the computer program 102, implements the functions of each module/unit in each apparatus embodiment described above.
Illustratively, the computer program 102 may be partitioned into one or more modules/units, which are stored in the memory 101 and executed by the processor 100 to accomplish the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 102 in the terminal device 10. For example, the computer program 102 may be partitioned into a data acquisition module and an output torque control module.
The terminal device 10 may be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. Terminal device 10 may include, but is not limited to, a processor 100, a memory 101. Those skilled in the art will appreciate that fig. 8 is merely an example of the terminal device 10 and does not constitute a limitation of the terminal device 10 and may include more or fewer components than shown, or some of the components may be combined, or different components, e.g., the terminal device may also include input-output devices, network access devices, buses, etc.
The Processor 100 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 101 may be an internal storage unit of the terminal device 10, such as a hard disk or a memory of the terminal device 10. The memory 101 may also be an external storage device of the terminal device 10, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the terminal device 10. Further, the memory 101 may also include both an internal storage unit of the terminal device 10 and an external storage device. The memory 101 is used to store computer programs and other programs and data required by the terminal device 10. The memory 101 may also be used to temporarily store data that has been output or is to be output.
To sum up, the wind speed increase will lead to the wind wheel rotational speed to increase, and unit thrust increases, and the part load grow, and the drastic change of wind direction will lead to the unbalanced load of unit to change violently simultaneously, probably seriously influences the unit life-span, and this application can be according to real-time wind speed and wind direction dynamic adjustment wind turbine generator's output torque to can effectively reduce unit load, reduce unit part cost.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims (10)
1. A wind turbine load control method is characterized by comprising the following steps:
acquiring the ambient wind speed and the ambient wind direction at the current moment in real time;
under the condition that the wind speed and the wind direction meet the preset wind conditions, respectively matching the wind speed and the wind direction with a preset wind speed threshold value and a preset wind direction threshold value;
and if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator to be a target torque, wherein the target torque is lower than the preset output torque of the wind turbine generator.
2. The wind turbine load control method according to claim 1, wherein after controlling the output torque of the wind turbine to be the target torque, the method further comprises:
and continuously acquiring the ambient wind speed and the wind direction until the acquired wind speed is not more than the wind speed threshold, and/or the acquired wind direction is not more than the wind direction threshold, and controlling the output torque of the wind turbine generator to be the preset output torque.
3. The wind turbine load control method according to claim 1, wherein the wind speed threshold comprises a first wind speed threshold and a second wind speed threshold, the first wind speed threshold is smaller than the second wind speed threshold, the wind direction threshold comprises a first wind direction threshold and a second wind direction threshold, and the first wind direction threshold is smaller than the second wind direction threshold; if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator to be a target torque, including:
if the wind speed is greater than the first wind speed threshold and smaller than the second wind speed threshold, and the wind direction is greater than the first wind direction threshold and smaller than the second wind direction threshold, controlling the output torque of the wind turbine generator to be a first target torque;
if the wind speed is greater than the second wind speed threshold value and the wind direction is greater than the second wind direction threshold value, controlling the output torque of the wind turbine generator to be a second target torque;
the first target torque is greater than the second target torque, and the first target torque is less than the preset output torque.
4. The wind turbine load control method according to claim 1, wherein the step of determining whether the wind speed and the wind direction satisfy a preset wind condition comprises:
acquiring historical wind speeds and historical wind directions of n continuous historical moments before the current moment;
determining the wind speed difference between the wind speed and each historical wind speed, and determining the wind direction difference between the wind direction and each historical wind direction;
and if the wind speed difference is larger than the preset wind speed difference threshold value and the wind direction difference is larger than the preset wind direction difference threshold value, determining that the wind speed and the wind direction meet the preset wind condition.
5. The wind turbine load control method according to claim 1, wherein the step of determining whether the wind speed and the wind direction satisfy a preset wind condition comprises:
acquiring historical wind speeds and historical wind directions of n continuous historical moments before the current moment;
determining the average wind speed of all historical wind speeds and determining the average wind direction of all historical wind directions;
determining a wind speed difference between the wind speed and the average wind speed, and determining a wind direction difference between the wind direction and the average wind direction;
matching the wind speed difference with a preset wind speed difference threshold value, and matching the wind direction difference with a preset wind direction difference threshold value;
and if the wind speed difference is larger than the wind speed difference threshold value and the wind direction difference is larger than the wind direction difference threshold value, determining that the wind speed and the wind direction meet a preset wind condition.
6. The wind turbine load control method according to claim 1, wherein the step of determining whether the wind speed and the wind direction satisfy a preset wind condition comprises:
matching the wind speed and the wind direction with a preset wind condition table or a preset wind condition curve, and if the wind speed and the wind direction can be matched with the wind condition table or the wind condition curve, determining that the wind speed and the wind direction meet the preset wind condition;
the wind condition table or the wind condition curve at least comprises a mapping relation between different wind speeds meeting preset wind conditions and corresponding wind directions.
7. The wind turbine generator load control method according to claim 5, wherein the preset wind condition is an ECD wind condition, the preset wind condition table is an ECD wind condition table, and the preset wind condition curve is an ECD wind condition curve;
the ECD wind condition table or the ECD wind condition curve at least comprises a mapping relation between different wind speeds and corresponding wind directions meeting the ECD wind conditions.
8. A wind turbine load control device, comprising:
the data acquisition module is configured to acquire the ambient wind speed and the ambient wind direction at the current moment in real time;
an output torque control module configured to match the wind speed and the wind direction with a preset wind speed threshold and a preset wind direction threshold, respectively, if it is determined that the wind speed and the wind direction satisfy a preset wind condition;
and if the wind speed is greater than the wind speed threshold and the wind direction is greater than the wind direction threshold, controlling the output torque of the wind turbine generator to be a target torque, wherein the target torque is lower than the preset output torque of the wind turbine generator.
9. A computer-readable medium, in which a computer program is stored, which computer program, when being executed by a processor, is adapted to carry out the wind turbine load control method of any one of claims 1 to 7.
10. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the wind turbine load control method according to any one of claims 1 to 7 when executing the computer program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211382863.0A CN115898760A (en) | 2022-11-07 | 2022-11-07 | Wind turbine generator load control method and device, computer readable medium and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211382863.0A CN115898760A (en) | 2022-11-07 | 2022-11-07 | Wind turbine generator load control method and device, computer readable medium and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115898760A true CN115898760A (en) | 2023-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211382863.0A Pending CN115898760A (en) | 2022-11-07 | 2022-11-07 | Wind turbine generator load control method and device, computer readable medium and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115898760A (en) |
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2022
- 2022-11-07 CN CN202211382863.0A patent/CN115898760A/en active Pending
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