CN114856939A - Fatigue load reducing control method and device for offshore wind turbine and main controller - Google Patents
Fatigue load reducing control method and device for offshore wind turbine and main controller 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
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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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
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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
- Y02E10/727—Offshore wind turbines
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Abstract
The application discloses a fatigue load reducing control method, a fatigue load reducing control device and electronic equipment of an offshore wind turbine, wherein the method and the device are specifically used for setting a plurality of given rotating speeds; carrying out full-working-condition simulation calculation by using a simulation tool, and selecting a target control rotating speed from a plurality of given rotating speeds; the target control rotation speed is configured to a main controller of the offshore wind turbine so that the main controller controls the offshore wind turbine to operate at the target control rotation speed in an idle state. The fan maintains a certain rotating speed, so that the pneumatic damping of the blades can be increased, and the tower bottom fatigue load of a single-pile supporting structure in the offshore fan can be obviously reduced.
Description
Technical Field
The application relates to the technical field of wind power, in particular to a fatigue load reducing control method and device for an offshore wind turbine and a main controller.
Background
Structural vibration of offshore wind turbines is an elasto-dynamic problem, where the damping of the whole machine is crucial to the vibration and loading of the structure. The damping of the offshore wind turbine mainly comes from the pneumatic damping, hydrodynamic damping, structural damping, soil damping, controller damping and the like of the impeller, wherein the pneumatic damping is dominant. For offshore wind turbines, aerodynamic damping has a large impact on the hydrodynamic sensitive support structures.
At present, the development of offshore wind power in China is rapid, and offshore projects in Fujian and Guangdong areas are also in fierce and vigorous construction. The wave load of the single pile is generally larger because the water depth of Fujian and Guangdong sea areas is large, the waves are high, the sea conditions are worse, and the diameter of the single pile foundation pile is large and the structure is flexible. In some engineering projects, the tower bottom fatigue load of the single pile foundation is very large, so that the design of the tower and the foundation is controlled by the fatigue load and is difficult to design. Therefore, it is necessary to find an effective solution to reduce the tower bottom fatigue load of the mono pile support structure.
Disclosure of Invention
In view of the above, the present application provides a method and an apparatus for controlling fatigue load reduction of an offshore wind turbine, and a main controller, which are used for reducing the tower bottom fatigue load of a monopile support structure in an offshore wind turbine.
In order to achieve the above object, the following solutions are proposed:
a fatigue load reducing control method of an offshore wind turbine is applied to electronic equipment, and comprises the following steps:
setting a plurality of given rotating speeds;
carrying out full-working-condition simulation calculation by using a simulation tool, and selecting a target control rotating speed from the given rotating speeds;
and configuring the target control rotating speed to a main controller of the offshore wind turbine so that the main controller controls the offshore wind turbine to operate at the target control rotating speed in an idle state.
Optionally, the performing full condition simulation calculation based on the simulation tool, and selecting a target control rotation speed from the plurality of given rotation speeds includes:
setting a plurality of preset operation parameters for each given rotating speed;
based on each given rotating speed and the operating parameters corresponding to the selected given rotating speed, performing full-condition simulation calculation by using a simulation tool to obtain a plurality of fatigue load values of the single-pile supporting structure of the offshore wind turbine;
and selecting the fatigue load value with the largest reduction amplitude from the plurality of fatigue load values as a target fatigue load value, and taking the given rotating speed corresponding to the target fatigue load value as the target control rotating speed.
Optionally, the plurality of preset operating parameters include power down speed, idle condition, simulation time, and downtime.
A fatigue load control device that falls of offshore wind turbine is applied to electronic equipment, fall fatigue load control device and include:
a parameter setting module configured to set a plurality of given rotation speeds;
the fan simulation module is configured to utilize a simulation tool to perform all-condition simulation calculation, and a target control rotating speed is selected from the given rotating speeds;
a parameter binding module configured to configure the target control rotation speed to a main controller of the offshore wind turbine, so that the main controller controls the offshore wind turbine to operate at the target control rotation speed in an idle state.
Optionally, the fan simulation module includes:
the parameter setting unit is used for setting a plurality of preset operation parameters aiming at each given rotating speed;
the simulation execution unit is used for carrying out full-working-condition simulation calculation by using a simulation tool based on each given value and the operation parameter corresponding to the given rotation speed which is determined alternatively to obtain a plurality of fatigue load values of the single-pile supporting structure of the offshore wind turbine;
and a rotation speed selection unit configured to select the fatigue load value with the largest reduction range from the plurality of fatigue load values as a target fatigue load value, and to set the given rotation speed corresponding to the target fatigue load value as the target control rotation speed.
Optionally, the plurality of preset operating parameters include power down speed, idle condition, simulation time, and downtime.
An electronic device is provided with the fatigue load reduction control device for the offshore wind turbine.
An electronic device comprising at least one processor and a memory coupled to the processor, wherein:
the memory is for storing a computer program or instructions;
the processor is configured to execute the computer program or the instructions to enable the electronic device to implement the above-mentioned method for controlling fatigue reduction of an offshore wind turbine.
According to the technical scheme, the application discloses a fatigue load reducing control method, a fatigue load reducing control device and electronic equipment for an offshore wind turbine, wherein the method and the device are specifically used for setting a plurality of given rotating speeds; carrying out full-working-condition simulation calculation by using a simulation tool, and selecting a target control rotating speed from a plurality of given rotating speeds; the target control rotation speed is configured to a main controller of the offshore wind turbine so that the main controller controls the offshore wind turbine to operate at the target control rotation speed in an idle state. The fan maintains a certain rotating speed to increase the aerodynamic damping of the blades, so that the tower bottom fatigue load of a single-pile supporting structure in the offshore fan can be obviously reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1a is a schematic view of a wind turbine being propelled by wind during operation;
FIG. 1b is a schematic diagram of the thrust variation of the fan when the wind speed becomes low;
FIG. 1c is a schematic view of aerodynamic damping of a fan;
FIG. 2 is a flowchart of a method for controlling fatigue reduction of an offshore wind turbine according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of a full condition simulation calculation process according to an embodiment of the present application;
FIG. 4 is a block diagram of a fatigue reduction load control apparatus for an offshore wind turbine according to an embodiment of the present application;
FIG. 5 is a block diagram of another fatigue reducing load control device for an offshore wind turbine according to an embodiment of the present application;
fig. 6 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the operation process of the offshore wind turbine, the wind force pushes the fan blades to rotate, so that the wind turbine is pushed to generate thrust, as shown in fig. 1 a. When the wind speed is reduced, the thrust is reduced, which hinders the nose from moving downwind, as shown in fig. 1b, at which time the pneumatic damping pushes the fan in the opposite direction, as shown in fig. 1 c. Based on the above analysis, the following specific examples are proposed.
Example one
Fig. 2 is a flowchart of a fatigue load reduction control method for an offshore wind turbine according to an embodiment of the present application.
As shown in fig. 2, the fatigue load reduction control method provided by the embodiment is applied to corresponding electronic equipment, which can be understood as a computer or a server with information processing capability and data computing capability, and is used for providing a control scheme capable of reducing the tower bottom fatigue load of a monopile supporting structure of an offshore wind turbine. The fatigue load reducing control method comprises the following steps:
and S1, setting a plurality of given rotating speeds.
The given rotating speed refers to the control rotating speed under the idling working condition, namely the lowest rotating speed value and the rotating speed tolerance value of the fan blade are modified, so that the variable pitch system of the fan is still operated under the idling state, and the rotating speed of the fan is kept at the given rotating speed.
And S2, performing full-condition simulation calculation by using a simulation tool.
That is, for each given rotation speed, a specific simulation software running on the electronic device is used to perform full condition simulation calculation, and a target control rotation speed is selected from the multiple given rotation speeds, and the specific process is as shown in fig. 3:
s21, setting a plurality of preset operation parameters for each given rotation speed.
Namely, when each given rotating speed is calculated, a plurality of conditions are set for simulation software, namely preset operation parameters comprise power reduction speed, idling working condition, simulation time and downtime. The power reduction speed refers to the power reduction speed in the shutdown process, so that the simulation software can quickly enter a stable state, wherein the stable state refers to the condition that the power is zero and the fan is stable.
Because the idle running simulation in the simulation software does not call an external controller, an equivalent processing method is adopted, namely, the simulation option of the idle running working condition is changed from idle running to normal shutdown, and the simulation time and the shutdown time are set.
And S22, carrying out full-working-condition simulation operation.
And carrying out full-working-condition simulation calculation by using a simulation tool based on each given rotating speed and the operating parameters corresponding to the selected given rotating speed to obtain a fatigue load value aiming at each given rotating speed, and obtaining a plurality of fatigue load values of the single-pile supporting structure of the offshore wind turbine by calculating all the given rotating speeds.
And S23, selecting a target control rotating speed.
And selecting from the obtained plurality of fatigue load values, selecting the fatigue load value with the largest reduction amplitude as a target fatigue load value, and selecting a given rotating speed corresponding to the target fatigue load value as a target control rotating speed.
And S3, configuring the target control rotating speed on a main controller of the offshore wind turbine.
After the corresponding target control rotating speed is obtained, the target control rotating speed is configured to the target control rotating speed of the offshore wind turbine, so that the main controller controls the offshore wind turbine in an idle state based on the target control rotating speed.
According to the technical scheme, the method for controlling the fatigue load of the offshore wind turbine is applied to electronic equipment, and specifically comprises the steps of setting a plurality of given rotating speeds; carrying out full-working-condition simulation calculation by using a simulation tool, and selecting a target control rotating speed from a plurality of given rotating speeds; the target control rotation speed is configured to a main controller of the offshore wind turbine so that the main controller controls the offshore wind turbine to operate at the target control rotation speed in an idle state. The fan maintains a certain rotating speed to increase the aerodynamic damping of the blades, so that the tower bottom fatigue load of a single-pile supporting structure in the offshore fan can be obviously reduced.
Example two
Fig. 4 is a block diagram of a fatigue reduction load control device of an offshore wind turbine according to an embodiment of the present application.
As shown in fig. 4, the fatigue load reduction control device provided by the present embodiment is applied to corresponding electronic equipment, and is used for providing a control scheme capable of reducing the tower bottom fatigue load of a monopile support structure of an offshore wind turbine, where the device may be understood as a functional module of the electronic equipment or itself, and the electronic equipment may be understood as a computer or a server with information processing capability and data computing capability. The fatigue load reducing control device comprises a parameter setting module 10, a fan simulation module 20 and a parameter binding module 30.
The parameter setting module is used for setting a plurality of given rotating speeds.
The given rotating speed refers to the control rotating speed under the idling working condition, namely the lowest rotating speed value and the rotating speed tolerance value of the fan blade are modified, so that the variable pitch system of the fan is still operated under the idling state, and the rotating speed of the fan is kept at the given rotating speed.
And the fan simulation module is used for carrying out full-working-condition simulation calculation by utilizing a simulation tool.
Namely, for each given rotation speed, a specific simulation software running on the electronic device is utilized to perform full-condition simulation calculation, and a target control rotation speed is selected from the multiple given rotation speeds, and the module comprises a parameter setting unit 21, a simulation execution unit 22 and a rotation speed selection unit 23, which are specifically shown in fig. 5.
The parameter setting unit is used for setting a plurality of preset operation parameters for each given rotating speed.
When each given rotating speed is calculated, a plurality of conditions are set for simulation software, namely preset operating parameters comprise power reduction speed, idling working condition, simulation time and stop time. The power reduction speed refers to the power reduction speed in the shutdown process, so that the simulation software can quickly enter a stable state, wherein the stable state refers to the condition that the power is zero and the fan is stable.
Because the idle running simulation in the simulation software does not call the external controller, an equivalent processing method is adopted, namely the simulation option of the idle running working condition is changed from idle running to normal shutdown, and the simulation time and the shutdown time are set.
The simulation execution unit is used for carrying out full-working-condition simulation operation.
And carrying out full-working-condition simulation calculation by using a simulation tool based on each given rotating speed and the operating parameters corresponding to the selected given rotating speed to obtain a fatigue load value aiming at each given rotating speed, and obtaining a plurality of fatigue load values of the single-pile supporting structure of the offshore wind turbine by calculating all the given rotating speeds.
The rotating speed selection unit is used for selecting a target control rotating speed.
And selecting from the obtained plurality of fatigue load values, selecting the fatigue load value with the largest reduction amplitude as a target fatigue load value, and selecting a given rotating speed corresponding to the target fatigue load value as a target control rotating speed.
The parameter binding module is used for configuring the target control rotating speed to a main controller of the offshore wind turbine.
After the corresponding target control rotating speed is obtained, the target control rotating speed is configured to the target control rotating speed of the offshore wind turbine, so that the main controller controls the offshore wind turbine in an idle state based on the target control rotating speed.
It can be seen from the above technical solutions that, the present embodiment provides a fatigue load reduction control device for an offshore wind turbine, which is applied to electronic equipment, and is specifically used for setting a plurality of given rotation speeds; carrying out full-condition simulation calculation by using a simulation tool, and selecting a target control rotating speed from a plurality of given rotating speeds; the target control rotation speed is configured to a main controller of the offshore wind turbine so that the main controller controls the offshore wind turbine to operate at the target control rotation speed in an idle state. The fan maintains a certain rotating speed to increase the aerodynamic damping of the blades, so that the tower bottom fatigue load of a single-pile supporting structure in the offshore fan can be obviously reduced.
EXAMPLE III
The present embodiment provides an electronic device that can be understood as a computer or server having data calculation capability and information processing capability. The electronic equipment is provided with the fatigue load reducing control device of the offshore wind turbine in the previous embodiment, and the device is specifically used for setting a plurality of given rotating speeds; carrying out full-condition simulation calculation by using a simulation tool, and selecting a target control rotating speed from a plurality of given rotating speeds; the target control rotation speed is configured to a main controller of the offshore wind turbine so that the main controller controls the offshore wind turbine to operate at the target control rotation speed in an idle state. The fan maintains a certain rotating speed to increase the aerodynamic damping of the blades, so that the tower bottom fatigue load of a single-pile supporting structure in the offshore fan can be obviously reduced.
Example four
Fig. 6 is a block diagram of an electronic device according to an embodiment of the present application.
As shown in fig. 6, the electronic device provided in the present embodiment may be understood as a computer or a server having data calculation capability and information processing capability. The electronic device comprises at least one processor 101 and a memory 102, which are connected through a data bus 103, the memory is used for storing computer programs or instructions, and the processor is used for executing the corresponding computer programs or instructions, so that the electronic device realizes the fatigue load reduction control method of the offshore wind turbine provided by the embodiment.
The fatigue load reducing control method is particularly used for setting a plurality of given rotating speeds; carrying out full-working-condition simulation calculation by using a simulation tool, and selecting a target control rotating speed from a plurality of given rotating speeds; the target control rotation speed is configured to a main controller of the offshore wind turbine so that the main controller controls the offshore wind turbine to operate at the target control rotation speed in an idle state. The fan maintains a certain rotating speed to increase the aerodynamic damping of the blades, so that the tower bottom fatigue load of a single-pile supporting structure in the offshore fan can be obviously reduced.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention 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.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The technical solutions provided by the present invention are described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific examples, and the descriptions of the above examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A fatigue load reducing control method of an offshore wind turbine is applied to electronic equipment, and is characterized by comprising the following steps:
setting a plurality of given rotating speeds;
carrying out full-working-condition simulation calculation by using a simulation tool, and selecting a target control rotating speed from the given rotating speeds;
and configuring the target control rotating speed to a main controller of the offshore wind turbine so that the main controller controls the offshore wind turbine to operate at the target control rotating speed in an idle state.
2. The fatigue-reducing load control method according to claim 1, wherein said full-regime simulation calculation based on a simulation tool, selecting a target control rotation speed from said plurality of given rotation speeds, comprises the steps of:
setting a plurality of preset operation parameters for each given rotating speed;
based on each given rotating speed and the operating parameters corresponding to the selected given rotating speed, carrying out full-condition simulation calculation by using a simulation tool to obtain a plurality of fatigue load values of the single-pile supporting structure of the offshore wind turbine;
and selecting the fatigue load value with the largest reduction amplitude from the plurality of fatigue load values as a target fatigue load value, and taking the given rotating speed corresponding to the target fatigue load value as the target control rotating speed.
3. The fatigue-reducing load control method of claim 1, wherein the plurality of preset operating parameters include power-reducing speed, idle condition, simulation time, and downtime.
4. The utility model provides a tired load controlling means falls of offshore wind turbine, is applied to electronic equipment, its characterized in that falls tired load controlling means and includes:
a parameter setting module configured to set a plurality of given rotation speeds;
the fan simulation module is configured to utilize a simulation tool to perform all-condition simulation calculation, and a target control rotating speed is selected from the given rotating speeds;
a parameter binding module configured to configure the target control rotation speed to a main controller of the offshore wind turbine, so that the main controller controls the offshore wind turbine to operate at the target control rotation speed in an idle state.
5. The fatigue-reducing load control device of claim 54, wherein the wind turbine simulation module comprises:
the parameter setting unit is used for setting a plurality of preset operation parameters aiming at each given rotating speed;
the simulation execution unit is used for carrying out full-working-condition simulation calculation by using a simulation tool based on each given value and the operation parameter corresponding to the given rotation speed which is determined alternatively to obtain a plurality of fatigue load values of the single-pile supporting structure of the offshore wind turbine;
and a rotation speed selection unit configured to select the fatigue load value with the largest reduction range from the plurality of fatigue load values as a target fatigue load value, and to set the given rotation speed corresponding to the target fatigue load value as the target control rotation speed.
6. The fatigue-reducing load control device of claim 4, wherein the plurality of preset operating parameters include power-reducing speed, idle condition, simulation time, and downtime.
7. An electronic device, characterized in that a fatigue load reduction control device for an offshore wind turbine according to any one of claims 4 to 6 is provided.
8. An electronic device comprising at least one processor and a memory coupled to the processor, wherein:
the memory is for storing a computer program or instructions;
the processor is configured to execute the computer program or the instructions to enable the electronic device to implement the method for controlling fatigue of an offshore wind turbine according to any of claims 1 to 3.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115750204A (en) * | 2022-11-15 | 2023-03-07 | 中国华能集团清洁能源技术研究院有限公司 | Method and system for adjusting rotating speed of generator of wind turbine generator |
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