CN114856930B - Determination method and device for pneumatic parameters of double-wind-wheel wind turbine generator set and electronic equipment - Google Patents

Determination method and device for pneumatic parameters of double-wind-wheel wind turbine generator set and electronic equipment Download PDF

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CN114856930B
CN114856930B CN202210330318.0A CN202210330318A CN114856930B CN 114856930 B CN114856930 B CN 114856930B CN 202210330318 A CN202210330318 A CN 202210330318A CN 114856930 B CN114856930 B CN 114856930B
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wind wheel
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aerodynamic parameters
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wind
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CN114856930A (en
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李新凯
郭小江
唐巍
叶昭良
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Huaneng Clean Energy Research Institute
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/82—Forecasts
    • F05B2260/821—Parameter estimation or prediction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/83—Testing, e.g. methods, components or tools therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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Abstract

The invention provides a method and a device for determining pneumatic parameters of a double-wind-wheel wind turbine generator set and electronic equipment, and relates to the technical field of wind power generation. Wherein the method comprises the following steps: determining a reference speed at a front wind wheel and a reference speed at a rear wind wheel in the double wind wheels; determining a plurality of groups of reference pneumatic parameters of the double wind wheels; determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the reference speed at the front wind wheel, the reference speed at the rear wind wheel and the multiple groups of reference aerodynamic parameters; and determining target aerodynamic parameters of the double wind wheels from the multiple groups of reference aerodynamic parameters according to each group of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheels. Therefore, on the basis of guaranteeing the total efficiency of the double wind wheels, the reasonable pneumatic parameters of the double wind wheels can be determined, and the accuracy and the reliability are improved.

Description

Determination method and device for pneumatic parameters of double-wind-wheel wind turbine generator set and electronic equipment
Technical Field
The disclosure relates to the technical field of wind power generation, in particular to a method and a device for determining aerodynamic parameters of a double-wind-wheel wind turbine generator set and electronic equipment.
Background
In recent years, the development of clean renewable energy sources, such as wind energy, light energy and other renewable energy sources, has become a global consensus due to the great consumption of traditional fossil energy sources causing regional haze, global warming and other serious environmental problems. Wind energy is becoming an increasingly interesting new energy source due to its advantages of wide sources, large reserves, no pollution, etc. The special carrier of the electric energy as the energy has the characteristics of cleanness, high efficiency, environmental friendliness and the like, so the significance of greatly developing new energy power generation is great.
Along with the progress of science and technology, wind power generation is wider and wider, and the application range is wider and wider, and a wind generating set is gradually developed from a single-wind-wheel wind generating set to a double-wind-wheel wind generating set. In general, in the use process of the double-wind-wheel wind generating set, aerodynamic parameters of the double wind wheels can have great influence on the efficiency of the double wind wheels. Therefore, how to design the pneumatic parameters of the double wind wheels so as to ensure the efficiency of the double wind wheels becomes the current problem to be solved urgently.
Disclosure of Invention
The present disclosure aims to solve, at least to some extent, one of the technical problems in the related art.
An embodiment of a first aspect of the present disclosure provides a method for determining aerodynamic parameters of a double wind turbine generator, including:
determining a reference speed at a front wind wheel and a reference speed at a rear wind wheel in the double wind wheels;
determining a plurality of groups of reference pneumatic parameters of the double wind wheels;
determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the reference speed at the front wind wheel, the reference speed at the rear wind wheel and the multiple groups of reference aerodynamic parameters;
and determining target aerodynamic parameters of the double wind wheels from the multiple groups of reference aerodynamic parameters according to each group of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheels.
Optionally, the determining the reference speed at the front wind wheel and the reference speed at the rear wind wheel in the double wind wheels includes:
determining a reference incoming flow speed according to the historical incoming flow data;
determining the reference speed of the front wind wheel in the double wind wheels according to the reference incoming flow speed and a preset axial induction factor of the front wind wheel;
and determining the reference speed of the rear wind wheel in the double wind wheels according to the reference incoming flow speed and the preset axial induction factor of the rear wind wheel.
Optionally, each set of the reference aerodynamic parameters includes a plurality of aerodynamic parameters, and the determining the multiple sets of reference aerodynamic parameters of the double wind wheel includes:
determining a range of each pneumatic parameter;
and determining multiple groups of reference aerodynamic parameters of the double wind wheels according to the range of each aerodynamic parameter.
Optionally, the determining the total efficiency of the double wind wheel corresponding to each group of the reference aerodynamic parameters includes:
obtaining each induction factor in the double wind wheels, wherein the induction factors comprise an axial induction factor of a front wind wheel, a tangential induction factor of the front wind wheel, an axial induction factor of a rear wind wheel, a tangential induction factor of the rear wind wheel and a tangential induction factor at an inlet of the rear wind wheel;
determining the power of the front wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factor of the front wind wheel, the tangential induction factor of the front wind wheel and the reference aerodynamic parameters corresponding to the front wind wheel in each group of reference aerodynamic parameters;
determining the power of the rear wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factor of the rear wind wheel, the tangential induction factor at the inlet of the rear wind wheel and the reference aerodynamic parameters corresponding to the rear wind wheel in each group of reference aerodynamic parameters;
and determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the power of the front wind wheel corresponding to each group of reference aerodynamic parameters and the power of the rear wind wheel.
Optionally, the determining, according to each set of the reference aerodynamic parameters and the total efficiency of the corresponding double wind wheel, the target aerodynamic parameters of the double wind wheel from the multiple sets of reference aerodynamic parameters includes:
and determining any group of reference aerodynamic parameters with the maximum corresponding total efficiency as target aerodynamic parameters of the double wind wheels.
An embodiment of a second aspect of the present disclosure provides a determination device for aerodynamic parameters of a double wind turbine generator, including:
the first determining module is used for determining the reference speed at the front wind wheel and the reference speed at the rear wind wheel in the double wind wheels;
the second determining module is used for determining a plurality of groups of reference aerodynamic parameters of the double wind wheels;
the third determining module is used for determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the reference speed at the front wind wheel, the reference speed at the rear wind wheel and the multiple groups of reference aerodynamic parameters;
and the fourth determining module is used for determining target aerodynamic parameters of the double wind wheels from the multiple groups of reference aerodynamic parameters according to the reference aerodynamic parameters of each group and the total efficiency of the corresponding double wind wheels.
Optionally, the first determining module is specifically configured to:
determining a reference incoming flow speed according to the historical incoming flow data;
determining the reference speed of the front wind wheel in the double wind wheels according to the reference incoming flow speed and a preset axial induction factor of the front wind wheel;
and determining the reference speed of the rear wind wheel in the double wind wheels according to the reference incoming flow speed and the preset axial induction factor of the rear wind wheel.
Optionally, each set of the reference aerodynamic parameters includes a plurality of aerodynamic parameters, and the second determining module is specifically configured to:
determining a range of each pneumatic parameter;
and determining multiple groups of reference aerodynamic parameters of the double wind wheels according to the range of each aerodynamic parameter.
Optionally, the third determining module is specifically configured to:
obtaining each induction factor in the double wind wheels, wherein the induction factors comprise an axial induction factor of a front wind wheel, a tangential induction factor of the front wind wheel, an axial induction factor of a rear wind wheel, a tangential induction factor of the rear wind wheel and a tangential induction factor at an inlet of the rear wind wheel;
determining the power of the front wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factor of the front wind wheel, the tangential induction factor of the front wind wheel and the reference aerodynamic parameters corresponding to the front wind wheel in each group of reference aerodynamic parameters;
determining the power of the rear wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factor of the rear wind wheel, the tangential induction factor at the inlet of the rear wind wheel and the reference aerodynamic parameters corresponding to the rear wind wheel in each group of reference aerodynamic parameters;
and determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the power of the front wind wheel corresponding to each group of reference aerodynamic parameters and the power of the rear wind wheel.
Optionally, the fourth determining module is specifically configured to:
and determining any group of reference aerodynamic parameters with the maximum corresponding total efficiency as target aerodynamic parameters of the double wind wheels.
An embodiment of a third aspect of the present disclosure provides an electronic device, including: the method for determining the aerodynamic parameters of the double wind turbine generator set according to the embodiment of the first aspect of the disclosure is realized when the processor executes the program.
An embodiment of a fourth aspect of the present disclosure proposes a non-transitory computer readable storage medium storing a computer program, which when executed by a processor implements a method for determining aerodynamic parameters of a double wind turbine as proposed in an embodiment of the first aspect of the present disclosure.
An embodiment of a fifth aspect of the present disclosure proposes a computer program product, which when executed by an instruction processor in the computer program product, performs the method for determining aerodynamic parameters of a double wind turbine generator set proposed by the embodiment of the first aspect of the present disclosure.
According to the method, the device and the electronic equipment for determining the aerodynamic parameters of the double wind wheel wind turbine, the reference speed of the front wind wheel and the reference speed of the rear wind wheel in the double wind wheel can be determined firstly, then a plurality of groups of reference aerodynamic parameters of the double wind wheel are determined, then the total efficiency of the double wind wheel corresponding to each group of reference aerodynamic parameters is determined according to the reference speed of the front wind wheel, the reference speed of the rear wind wheel and the plurality of groups of reference aerodynamic parameters, and then the target aerodynamic parameters of the double wind wheel can be determined from the plurality of groups of reference aerodynamic parameters according to each group of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheel. Therefore, the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters is determined, a group of aerodynamic parameters which are more suitable are obtained from a plurality of groups of reference aerodynamic parameters, and the determined aerodynamic parameters of the double wind wheels are more reasonable on the basis of guaranteeing the total efficiency of the double wind wheels, so that the accuracy and the reliability are improved.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
FIG. 1 is a flowchart of a method for determining aerodynamic parameters of a double wind turbine provided in another embodiment of the disclosure;
FIG. 2 is a flowchart illustrating a method for determining aerodynamic parameters of a double wind turbine according to another embodiment of the disclosure;
fig. 3 is a schematic structural diagram of a determining device for aerodynamic parameters of a double wind turbine generator set according to another embodiment of the present disclosure;
fig. 4 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure.
Detailed Description
Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.
The method, the device and the electronic equipment for determining the aerodynamic parameters of the double wind turbine generator set are described below with reference to the accompanying drawings.
The charging control method of the embodiment of the disclosure may be performed by the charging control device provided by the embodiment of the disclosure, and the device may be configured in an electronic apparatus.
Fig. 1 is a flow chart of a method for determining aerodynamic parameters of a double wind turbine generator set according to an embodiment of the disclosure. As shown in fig. 1, the method for determining aerodynamic parameters of the double wind turbine generator set may include the following steps:
step 101, determining a reference speed at a front wind wheel and a reference speed at a rear wind wheel in the double wind wheels.
It can be appreciated that in the process of the incoming wind passing through the double wind wheel wind turbine generator, due to the coupling condition between the front wind wheel and the rear wind wheel, or the speed of the incoming wind after passing through the front wind wheel is changed, the wind speeds of the incoming wind passing through the front wind wheel and the double wind wheel may be different. Therefore, in the embodiment of the disclosure, the reference speed at the front wind wheel and the reference speed at the rear wind wheel in the double wind wheels can be determined first.
The reference speed at the front wind wheel and the reference speed at the rear wind wheel in the double wind wheels can be determined in various manners.
For example, historical incoming flow data of incoming flow passing through the double-wind-wheel wind turbine generator set can be obtained first.
The historical incoming flow data may include an average speed of any incoming flow passing through the double wind wheel wind turbine, a speed of any incoming flow passing through the front wind wheel, a wind speed of any incoming flow passing through the rear wind wheel, and the like, which is not limited by the present disclosure.
And then, determining the average speed of incoming wind passing through the front wind wheel according to the historical incoming flow data, taking the average speed of incoming wind passing through the front wind wheel as the reference speed of the front wind wheel, determining the average wind speed of incoming wind passing through the rear wind wheel, taking the average wind speed of incoming wind passing through the rear wind wheel as the reference speed of the rear wind wheel and the like, wherein the method is not limited.
Alternatively, the historical incoming flow data of the incoming flow passing through the double wind wheel wind turbine generator set can be obtained first, and then the reference incoming flow speed is determined according to the historical incoming flow data.
For example, the reference incoming flow speed may be determined according to the average speed of the historical incoming flow through the double wind turbine, and the disclosure is not limited thereto.
And then, the reference speed of the front wind wheel in the double wind wheels can be determined according to the reference incoming flow speed and the preset axial induction factor of the front wind wheel, and the reference speed of the rear wind wheel in the double wind wheels can be determined according to the reference incoming flow speed and the preset axial induction factor of the rear wind wheel.
For example, when the reference incoming flow speed is V, the preset axial induction factor of the front wind wheel is a, the preset axial induction factor of the rear wind wheel is b, the reference speed at the front wind wheel may be determined to be V (1-a), the reference speed at the rear wind wheel may be determined to be V (1-b), and the like, which is not limited in the disclosure.
Step 102, determining multiple groups of reference aerodynamic parameters of the double wind wheel.
Among these, the reference aerodynamic parameters may be blade length, rotational angular velocity, etc. For example, the length of the blades of the front wind wheel, the rotational angular velocity of the front wind wheel, the length of the blades of the rear wind wheel, the rotational angular velocity of the rear wind wheel, the distance between the front wind wheel and the rear wind wheel, and the like may be used, which is not limited in the present disclosure.
It will be appreciated that the aerodynamic parameters of any set of reference aerodynamic parameters may include one of the above, or may be a plurality of the above, etc., as the present disclosure is not limited in this regard.
Step 103, determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the reference speed at the front wind wheel, the reference speed at the rear wind wheel and the multiple groups of reference aerodynamic parameters.
Wherein the power P of the front wind wheel 1 The relationship shown in the following formula (1) may be satisfied:
Figure BDA0003568620150000041
wherein ρ is air density, V 1 For the reference speed of the front wind wheel omega 1 A is the rotation angular velocity of the front wind wheel 1 Is a tangential induction factor of the front wind wheel.
Power P of rear wind wheel 2 The relationship shown in the following formula (2) may be satisfied:
Figure BDA0003568620150000042
wherein ρ is air density, V 2 For reference speed of rear wind wheel omega 1 B is the rotation angular velocity of the rear wind wheel 1 Is the back ofTangential inducer of wind wheel, a 2 Is a tangential induction factor at the inlet of the rear wind wheel.
Total efficiency C of double wind wheel P The relationship shown in the following formula (3) may be satisfied:
Figure BDA0003568620150000043
it can be understood that, for each set of reference aerodynamic parameters, the power of the front wind wheel, the power of the rear wind wheel and the total efficiency of the double wind wheels corresponding to the set of reference aerodynamic parameters can be determined by the above formulas (1), (2) and (3).
And 104, determining target aerodynamic parameters of the double wind wheels from a plurality of groups of reference aerodynamic parameters according to each group of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheels.
Optionally, after determining each group of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheel, each total efficiency may be arranged according to the order of magnitude, and any group of reference aerodynamic parameters with the maximum corresponding total efficiency may be determined as the target aerodynamic parameters of the double wind wheel.
In one possible implementation manner, there are multiple groups of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheels is the maximum total efficiency, at this time, the power of the rear wind wheel corresponding to each group of reference aerodynamic parameters can be continuously compared, and the reference aerodynamic parameter with the maximum power of the corresponding rear wind wheel is determined as the target aerodynamic parameter.
It should be noted that the foregoing examples are merely illustrative, and are not meant to be limiting of the manner in which the target aerodynamic parameters of the twin rotor are determined in the embodiments of the present disclosure.
According to the embodiment of the disclosure, the reference speed of the front wind wheel and the reference speed of the rear wind wheel in the double wind wheel can be determined, then a plurality of groups of reference aerodynamic parameters of the double wind wheel are determined, then the total efficiency of the double wind wheel corresponding to each group of reference aerodynamic parameters is determined according to the reference speed of the front wind wheel, the reference speed of the rear wind wheel and the plurality of groups of reference aerodynamic parameters, and then the target aerodynamic parameters of the double wind wheel can be determined from the plurality of groups of reference aerodynamic parameters according to each group of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheel. Therefore, the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters is determined, a group of aerodynamic parameters which are more suitable are obtained from a plurality of groups of reference aerodynamic parameters, and the determined aerodynamic parameters of the double wind wheels are more reasonable on the basis of guaranteeing the total efficiency of the double wind wheels, so that the accuracy and the reliability are improved.
Fig. 2 is a flow chart of a method for determining aerodynamic parameters of a double wind turbine generator set according to an embodiment of the disclosure. As shown in fig. 2, the method for determining aerodynamic parameters of the double wind turbine generator set may include the following steps:
step 201, determining a reference speed at a front wind wheel and a reference speed at a rear wind wheel in a double wind wheel.
Step 202, a range for each aerodynamic parameter is determined.
Step 203, determining multiple groups of reference aerodynamic parameters of the double wind wheel according to the range of each aerodynamic parameter.
Wherein, there may be a plurality of pneumatic parameters in each set of reference pneumatic parameters. For example, the length of the blades of the front wind wheel, the rotational angular velocity of the front wind wheel, the length of the blades of the rear wind wheel, the rotational angular velocity of the rear wind wheel, the distance between the front wind wheel and the rear wind wheel, and the like may be used, which is not limited in the present disclosure.
It will be appreciated that the types of each of the reference aerodynamic parameters are different. For example, the rotational angular velocity of the front wind wheel and the rotational angular velocity of the rear wind wheel may be the blade length of the front wind wheel and the blade length of the rear wind wheel, or the rotational angular velocity of the front wind wheel and the rotational angular velocity of the rear wind wheel may be the blade length of the front wind wheel, the blade length of the rear wind wheel, or the rotational angular velocity of the front wind wheel and the rotational angular velocity of the rear wind wheel, or the like.
For example, the blade length of the front wind wheel is (m 1, m 2), the blade length of the rear wind wheel is (n 1, n 2), and the blade length of the front wind wheel in the reference aerodynamic parameter may be determined to be any value between m1 and m2, for example, may be m3, m4. The blade length of the rear wind wheel in the reference aerodynamic parameter can be determined to be any value between n1 and n2, for example, n3 and n4. It can be determined that the two sets of reference aerodynamic parameters are m3 and n3, and m4 and n4, respectively; alternatively, two sets of reference aerodynamic parameters may be determined, m3 and n4, and m4 and n3, respectively, and so forth, which are not limiting in this disclosure.
Optionally, after determining the range of each aerodynamic parameter, the number of iterative steps may also be set, and multiple sets of reference aerodynamic parameters may be determined by a genetic algorithm, and the disclosure is not limited in this respect.
Step 204, obtaining each induction factor in the double wind wheels, wherein the induction factors comprise an axial induction factor of the front wind wheel, a tangential induction factor of the front wind wheel, an axial induction factor of the rear wind wheel, a tangential induction factor of the rear wind wheel and a tangential induction factor at an inlet of the rear wind wheel.
The induction factors in the double wind wheels can be preset default values or can be adjusted according to requirements, and the method is not limited in this disclosure.
Step 205, determining the power of the front wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factor of the front wind wheel, the tangential induction factor of the front wind wheel and the reference aerodynamic parameters corresponding to the front wind wheel in each group of reference aerodynamic parameters.
And 206, determining the power of the rear wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factors of the rear wind wheel, the tangential induction factors at the inlet of the rear wind wheel and the reference aerodynamic parameters corresponding to the rear wind wheel in each group of reference aerodynamic parameters.
Wherein the power P of the front wind wheel 1 The relationship shown in the following formula (1) may be satisfied:
Figure BDA0003568620150000051
wherein ρ is air density, V 1 For the reference speed of the front wind wheel omega 1 A is the rotation angular velocity of the front wind wheel 1 Is the tangential induction factor of the front wind wheel, R 1 Is the radius of the front wind wheel.
In addition, the power P of the rear wind wheel 2 The relationship shown in the following formula (2) may be satisfied:
Figure BDA0003568620150000061
wherein ρ is air density, V 2 For reference speed of rear wind wheel omega 2 B is the rotation angular velocity of the rear wind wheel 1 Is the tangential induction factor of the rear wind wheel, a 2 Is tangential induction factor at the inlet of the rear wind wheel, R 2 Is the radius of the front wind wheel.
Alternatively, the phylloxera dr on the rear wind wheel can be sequentially removed from inside to outside 2 The size dr of the front anemonin can be derived according to the expansion rate of the flow pipe 1 Then determining dr according to the aerodynamic parameters of the double wind wheel and each induction factor 1 And dr 2 The corresponding power is shown in the following formula (4):
dP 1 ＝m 1 *ω 1 *r 1 *C θ,1 ＝2*π*r 1 2 *ρ*V 1 *ω 1 *C θ,1 dr 1 (4)
wherein m1 is the mass, ω of fluid flowing through the front wind wheel 1 The rotation angular velocity of the front wind wheel is r1 which is the length of a blade element section of the front wind wheel, C θ,1 Is the tangential velocity of the front wind wheel, ρ is the air density, V 1 Is the reference speed of the front wind wheel.
And C θ,1 The following formula (5) is satisfied:
C θ,1 ＝2*a 1 *ω 1 *r 1 (5)
wherein a is 1 Is a tangential induction factor of the front wind wheel.
Thus, from the above formulas (4) (5), the power of the front anemonin can be determined as:
Figure BDA0003568620150000062
in addition, dP 2 The relationship shown in the following formula (7) may be satisfied:
Figure BDA0003568620150000063
wherein m is 2 For fluid mass, ω, flowing through the rear rotor 2 R is the rotation angular velocity of the rear wind wheel 2 Is the length of the rear wind wheel leaf element section, C θ,2 For controlling the rotation speed of the inlet of the rear wind wheel, C θ,3 For the rotational speed at the outlet of the rear wind wheel control body, ρ is the air density, V 2 Is the reference speed of the front wind wheel.
And C θ,2 The following formula (8) is satisfied:
C θ,2 ＝2*a 2 *ω 2 *r 2 (8)
wherein a is 2 Is a tangential induction factor at the inlet of the rear wind wheel control body.
And C θ,3 The following formula (9) is satisfied:
C θ,3 ＝2*b 1 *ω 2 *r 2 (9)
wherein b 1 Is a tangential induction factor of the rear wind wheel.
Thus, according to the above formulas (7), (8) and (9), the power of the rear anemonin can be determined as:
Figure BDA0003568620150000071
wherein b1 is tangential induction factor of the rear wind wheel, a 2 And b is the tangential induction factor at the inlet of the rear wind wheel control body, and b is the axial induction factor of the rear wind wheel.
Then, according to formulas (6) and (10), the power of the front wind wheel and the power of the rear wind wheel can be determined respectively.
It should be noted that the foregoing examples are merely illustrative, and are not intended to limit the manner in which the front wind wheel power and the rear wind wheel power are determined in the embodiments of the present disclosure.
Step 207, determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the power of the front wind wheel and the power of the rear wind wheel corresponding to each group of reference aerodynamic parameters.
And step 208, determining any group of reference aerodynamic parameters with the maximum total efficiency as target aerodynamic parameters of the double wind wheels.
According to the embodiment of the disclosure, the reference speed at the front wind wheel and the reference speed at the rear wind wheel in the double wind wheel can be determined firstly, then the range of each aerodynamic parameter is determined, multiple groups of reference aerodynamic parameters of the double wind wheel are determined according to the range of each aerodynamic parameter, then each induction factor in the double wind wheel can be obtained, then the power of the front wind wheel, the power of the rear wind wheel and the total efficiency of the double wind wheel, which are respectively corresponding to each group of reference aerodynamic parameters, can be determined by combining each group of reference aerodynamic parameters, and then any group of reference aerodynamic parameters with the maximum corresponding total efficiency can be determined as the target aerodynamic parameters of the double wind wheel. Therefore, the proper multiple groups of reference aerodynamic parameters are selected from the range of the aerodynamic parameters, then the total efficiency of the double wind wheel corresponding to each group of reference aerodynamic parameters is determined, and then a proper group of aerodynamic parameters is obtained from the multiple groups of reference aerodynamic parameters, so that the determined aerodynamic parameters of the double wind wheel are more reasonable on the basis of guaranteeing the total efficiency of the double wind wheel, and the accuracy and reliability are improved.
In order to achieve the above embodiment, the present disclosure further provides a device for determining aerodynamic parameters of a double wind turbine generator.
Fig. 3 is a schematic structural diagram of a determining device for aerodynamic parameters of a double wind turbine generator set according to an embodiment of the disclosure.
As shown in fig. 3, the determining device 100 for aerodynamic parameters of a double wind turbine may include: the first determination module 110, the second determination module 120, the third determination module 130, and the fourth determination module 140.
The first determining module 110 is configured to determine a reference speed at a front wind wheel and a reference speed at a rear wind wheel in the double wind wheels.
A second determining module 120 is configured to determine a plurality of sets of reference aerodynamic parameters of the double wind wheel.
And a third determining module 130, configured to determine the total efficiency of the double wind wheel corresponding to each set of reference aerodynamic parameters according to the reference speed at the front wind wheel, the reference speed at the rear wind wheel, and the multiple sets of reference aerodynamic parameters.
And a fourth determining module 140, configured to determine, according to each set of the reference aerodynamic parameters and the total efficiency of the corresponding double wind wheel, a target aerodynamic parameter of the double wind wheel from the multiple sets of reference aerodynamic parameters.
Optionally, the first determining module 110 is specifically configured to:
determining a reference incoming flow speed according to the historical incoming flow data;
determining the reference speed of the front wind wheel in the double wind wheels according to the reference incoming flow speed and a preset axial induction factor of the front wind wheel;
and determining the reference speed of the rear wind wheel in the double wind wheels according to the reference incoming flow speed and the preset axial induction factor of the rear wind wheel.
Optionally, each set of the reference aerodynamic parameters includes a plurality of aerodynamic parameters, and the second determining module 120 is specifically configured to:
determining a range of each pneumatic parameter;
and determining multiple groups of reference aerodynamic parameters of the double wind wheels according to the range of each aerodynamic parameter.
Optionally, the third determining module 130 is specifically configured to:
obtaining each induction factor in the double wind wheels, wherein the induction factors comprise an axial induction factor of a front wind wheel, a tangential induction factor of the front wind wheel, an axial induction factor of a rear wind wheel, a tangential induction factor of the rear wind wheel and a tangential induction factor at an inlet of the rear wind wheel;
determining the power of the front wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factor of the front wind wheel, the tangential induction factor of the front wind wheel and the reference aerodynamic parameters corresponding to the front wind wheel in each group of reference aerodynamic parameters;
determining the power of the rear wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factor of the rear wind wheel, the tangential induction factor at the inlet of the rear wind wheel and the reference aerodynamic parameters corresponding to the rear wind wheel in each group of reference aerodynamic parameters;
and determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the power of the front wind wheel corresponding to each group of reference aerodynamic parameters and the power of the rear wind wheel.
Optionally, the fourth determining module 140 is specifically configured to:
and determining any group of reference aerodynamic parameters with the maximum corresponding total efficiency as target aerodynamic parameters of the double wind wheels.
The functions and specific implementation principles of the foregoing modules in the embodiments of the present disclosure may refer to the foregoing method embodiments, and are not repeated herein.
According to the determination device for the aerodynamic parameters of the double wind wheel wind turbine, the reference speed of the front wind wheel and the reference speed of the rear wind wheel in the double wind wheel can be determined, then multiple groups of reference aerodynamic parameters of the double wind wheel are determined, the total efficiency of the double wind wheel corresponding to each group of reference aerodynamic parameters is determined according to the reference speed of the front wind wheel, the reference speed of the rear wind wheel and the multiple groups of reference aerodynamic parameters, and then the target aerodynamic parameters of the double wind wheel can be determined from the multiple groups of reference aerodynamic parameters according to each group of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheel. Therefore, the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters is determined, a group of aerodynamic parameters which are more suitable are obtained from a plurality of groups of reference aerodynamic parameters, and the determined aerodynamic parameters of the double wind wheels are more reasonable on the basis of guaranteeing the total efficiency of the double wind wheels, so that the accuracy and the reliability are improved.
In order to achieve the above embodiments, the present disclosure further proposes an electronic device including: the method for determining the aerodynamic parameters of the double-wind-wheel wind turbine generator set according to the embodiment of the disclosure is realized when the processor executes the program.
In order to implement the above embodiments, the present disclosure further provides a non-transitory computer readable storage medium storing a computer program, where the computer program when executed by a processor implements a method for determining aerodynamic parameters of a double wind turbine generator set according to the foregoing embodiments of the present disclosure.
In order to implement the above embodiments, the present disclosure further proposes a computer program product, which when executed by an instruction processor in the computer program product, performs a method for determining aerodynamic parameters of a double wind turbine generator set as proposed in the foregoing embodiments of the present disclosure.
Fig. 4 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present disclosure. The electronic device 12 shown in fig. 4 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.
As shown in fig. 4, the electronic device 12 is in the form of a general purpose computing device. Components of the electronic device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, a bus 18 that connects the various system components, including the system memory 28 and the processing units 16.
Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, and a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry Standard architecture (Industry Standard Architecture; hereinafter ISA) bus, micro channel architecture (Micro Channel Architecture; hereinafter MAC) bus, enhanced ISA bus, video electronics standards Association (Video Electronics Standards Association; hereinafter VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnection; hereinafter PCI) bus.
Electronic device 12 typically includes a variety of computer system readable media. Such media can be any available media that is accessible by electronic device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
Memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (Random Access Memory; hereinafter: RAM) 30 and/or cache memory 32. The electronic device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from or write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, commonly referred to as a "hard disk drive"). Although not shown in fig. 4, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a compact disk read only memory (Compact Disc Read Only Memory; hereinafter CD-ROM), digital versatile read only optical disk (Digital Video Disc Read Only Memory; hereinafter DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to bus 18 through one or more data medium interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of the various embodiments of the disclosure.
A program/utility 40 having a set (at least one) of program modules 42 may be stored in, for example, memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods in the embodiments described in this disclosure.
The electronic device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), one or more devices that enable a user to interact with the electronic device 12, and/or any devices (e.g., network card, modem, etc.) that enable the electronic device 12 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 22. Also, the electronic device 12 may communicate with one or more networks, such as a local area network (Local Area Network; hereinafter: LAN), a wide area network (Wide Area Network; hereinafter: WAN) and/or a public network, such as the Internet, via the network adapter 20. As shown, the network adapter 20 communicates with other modules of the electronic device 12 over the bus 18. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 12, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, for example, implementing the methods mentioned in the foregoing embodiments.
According to the technical scheme of the embodiment of the disclosure, the reference speed of the front wind wheel and the reference speed of the rear wind wheel in the double wind wheel can be determined firstly, then a plurality of groups of reference aerodynamic parameters of the double wind wheel are determined, then the total efficiency of the double wind wheel corresponding to each group of reference aerodynamic parameters is determined according to the reference speed of the front wind wheel, the reference speed of the rear wind wheel and the plurality of groups of reference aerodynamic parameters, and then the target aerodynamic parameters of the double wind wheel can be determined from the plurality of groups of reference aerodynamic parameters according to each group of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheel. Therefore, the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters is determined, a group of aerodynamic parameters which are more suitable are obtained from a plurality of groups of reference aerodynamic parameters, and the determined aerodynamic parameters of the double wind wheels are more reasonable on the basis of guaranteeing the total efficiency of the double wind wheels, so that the accuracy and the reliability are improved.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present disclosure in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present disclosure.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
Furthermore, each functional unit in the embodiments of the present disclosure may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present disclosure.

Claims (7)

1. The method for determining the aerodynamic parameters of the double-wind-wheel wind turbine generator is characterized by comprising the following steps of:
determining a reference incoming flow speed according to historical incoming flow data, determining a reference speed at a front wind wheel in the double wind wheels according to the reference incoming flow speed and a preset axial induction factor of the front wind wheel, and determining a reference speed at a rear wind wheel in the double wind wheels according to the reference incoming flow speed and the preset axial induction factor of the rear wind wheel;
determining a plurality of groups of reference pneumatic parameters of the double wind wheels;
determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the reference speed at the front wind wheel, the reference speed at the rear wind wheel and the multiple groups of reference aerodynamic parameters;
and determining target aerodynamic parameters of the double wind wheels from the multiple groups of reference aerodynamic parameters according to each group of reference aerodynamic parameters and the total efficiency of the corresponding double wind wheels.
2. The method of claim 1, wherein each set of said reference aerodynamic parameters includes a plurality of aerodynamic parameters, and wherein said determining a plurality of sets of reference aerodynamic parameters for said twin rotor comprises:
determining a range of each pneumatic parameter;
and determining multiple groups of reference aerodynamic parameters of the double wind wheels according to the range of each aerodynamic parameter.
3. The method of claim 1, wherein said determining the total efficiency of said twin rotor for each set of said reference aerodynamic parameters comprises:
obtaining each induction factor in the double wind wheels, wherein the induction factors comprise an axial induction factor of a front wind wheel, a tangential induction factor of the front wind wheel, an axial induction factor of a rear wind wheel, a tangential induction factor of the rear wind wheel and a tangential induction factor at an inlet of the rear wind wheel;
determining the power of the front wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factor of the front wind wheel, the tangential induction factor of the front wind wheel and the reference aerodynamic parameters corresponding to the front wind wheel in each group of reference aerodynamic parameters;
determining the power of the rear wind wheel corresponding to each group of reference aerodynamic parameters according to the axial induction factor of the rear wind wheel, the tangential induction factor at the inlet of the rear wind wheel and the reference aerodynamic parameters corresponding to the rear wind wheel in each group of reference aerodynamic parameters;
and determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the power of the front wind wheel corresponding to each group of reference aerodynamic parameters and the power of the rear wind wheel.
4. A method according to any one of claims 1-3, wherein said determining a target aerodynamic parameter of said twin rotor from said plurality of sets of reference aerodynamic parameters based on the total efficiency of each set of said reference aerodynamic parameters and the corresponding twin rotor comprises:
and determining any group of reference aerodynamic parameters with the maximum corresponding total efficiency as target aerodynamic parameters of the double wind wheels.
5. The utility model provides a determining device of double wind wheel wind turbine generator system aerodynamic parameter which characterized in that includes:
the first determining module is used for determining a reference incoming flow speed according to historical incoming flow data, determining a reference speed at a front wind wheel in the double wind wheels according to the reference incoming flow speed and a preset axial induction factor of the front wind wheel, and determining a reference speed at a rear wind wheel in the double wind wheels according to the reference incoming flow speed and the preset axial induction factor of the rear wind wheel;
the second determining module is used for determining a plurality of groups of reference aerodynamic parameters of the double wind wheels;
the third determining module is used for determining the total efficiency of the double wind wheels corresponding to each group of reference aerodynamic parameters according to the reference speed at the front wind wheel, the reference speed at the rear wind wheel and the multiple groups of reference aerodynamic parameters;
and the fourth determining module is used for determining target aerodynamic parameters of the double wind wheels from the multiple groups of reference aerodynamic parameters according to the reference aerodynamic parameters of each group and the total efficiency of the corresponding double wind wheels.
6. An electronic device, comprising:
a processor;
a memory for storing executable instructions of the processor;
wherein the processor is configured to invoke and execute the memory-stored executable instructions to implement the method of any of claims 1-4.
7. A non-transitory computer readable storage medium, which when executed by a processor of an electronic device, causes the electronic device to perform the method of any of claims 1-4.
CN202210330318.0A 2022-03-28 2022-03-28 Determination method and device for pneumatic parameters of double-wind-wheel wind turbine generator set and electronic equipment Active CN114856930B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015025444A (en) * 2013-07-29 2015-02-05 幸一郎 西村 Double wind-turbine type wind power generator
CN113239486A (en) * 2021-04-30 2021-08-10 中国华能集团清洁能源技术研究院有限公司 Double-wind-wheel fan transmission system resonance prediction method based on dynamics analysis
CN113833603A (en) * 2021-09-13 2021-12-24 华北电力大学 Operation control method for double-wind-wheel wind generating set
CN113847207A (en) * 2021-09-23 2021-12-28 中国华能集团清洁能源技术研究院有限公司 Double-wind-wheel wind turbine generator set

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015025444A (en) * 2013-07-29 2015-02-05 幸一郎 西村 Double wind-turbine type wind power generator
CN113239486A (en) * 2021-04-30 2021-08-10 中国华能集团清洁能源技术研究院有限公司 Double-wind-wheel fan transmission system resonance prediction method based on dynamics analysis
CN113833603A (en) * 2021-09-13 2021-12-24 华北电力大学 Operation control method for double-wind-wheel wind generating set
CN113847207A (en) * 2021-09-23 2021-12-28 中国华能集团清洁能源技术研究院有限公司 Double-wind-wheel wind turbine generator set

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