Method and device for determining parameters of a wind turbine and electronic device

Abstract

The present disclosure provides a method and device for determining parameters of a wind turbine, and an electronic device, and relates to the technical field of wind power generation. The method comprises: obtaining a first geometric parameter of a double rotor in the wind turbine; determining an aerodynamic load and a total efficiency of the double rotor according to the first geometric parameter; determining a second geometric parameter of the double rotor according to the aerodynamic load; returning to the step of determining the aerodynamic load and the total efficiency of the double rotor based on the second geometric parameter of the double rotor until the total efficiency and / or the second geometric parameter of the double rotor before and after twice meets a preset condition, and determining a safety parameter of the double rotor. Thus, the aerodynamics and structural solution of the rotor blade can be associated, and the aerodynamic performance and structural performance of the double rotor can be checked through multiple repeated iterations, so as to determine the safety parameter of the double rotor, and further provide a condition for ensuring the safety performance of the double rotor operation.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wind power generation, and in particular to a method and device for determining parameters of a wind turbine generator and an electronic device. BACKGROUND

[0002] With the progress of science and technology, wind power generation is becoming more and more widespread, and its application range is also becoming wider and wider. Wind turbine generators have gradually developed from single or double wind wheel wind turbine generators to double wind wheel wind turbine generators. Generally, during the use of a wind turbine generator, the geometric parameters of the double wind wheels may change over time, which may affect the performance of the wind turbine generator. Therefore, how to determine the safety parameters of the double wind wheels in the wind turbine generator to ensure the operating performance of the wind turbine generator has become a problem to be solved. SUMMARY

[0003] The present disclosure aims to at least partially solve one of the technical problems in the related art.

[0004] A first aspect of the present disclosure provides a method for determining parameters of a wind turbine generator, comprising:

[0005] obtaining a first geometric parameter of a double wind wheel in the wind turbine generator;

[0006] determining an aerodynamic load and a total efficiency of the double wind wheel according to the first geometric parameter;

[0007] determining a second geometric parameter of the double wind wheel according to the aerodynamic load;

[0008] based on the second geometric parameter of the double wind wheel, returning to the step of determining the aerodynamic load and the total efficiency of the double wind wheel until the total efficiency and / or the second geometric parameter of the double wind wheel before and after twice meets a preset condition, determining a safety parameter of the double wind wheel.

[0009] Optionally, the determining the aerodynamic load and the total efficiency of the double wind wheel according to the first geometric parameter comprises:

[0010] determining the aerodynamic load of the double wind wheel according to a wind speed of the double wind wheel, a rotational speed of a front wind wheel, a tangential velocity component and a radius of the double wind wheel in the first geometric parameter;

[0011] determining a power of the double wind wheel according to a preset induction factor, an incoming flow speed and air density;

[0012] determining the total efficiency of the double wind wheel according to the power and the incoming flow speed and air density.

[0013] Optionally, the determining the aerodynamic load and the total efficiency of the double wind wheel according to the first geometric parameter comprises:

[0014] obtain reference speeds of a front wind wheel and a rear wind wheel in the double wind wheel;

[0015] determine a target induction factor in the double wind wheel;

[0016] determine power of the front wind wheel and power of the rear wind wheel according to the reference speeds of the front wind wheel and the rear wind wheel in the double wind wheel, the aerodynamic parameter, and the target induction factor;

[0017] determine total efficiency of the double wind wheel according to the power of the front wind wheel and the power of the rear wind wheel.

[0018] Optionally, the determining the second geometric parameter of the double wind wheel according to the aerodynamic load of the double wind wheel comprises:

[0019] determine a deformation parameter of the double wind wheel according to the aerodynamic load and the bending moment of the double wind wheel;

[0020] determine a torsion angle of the double wind wheel after deformation according to the deformation parameter;

[0021] determine a wind speed corresponding to the double wind wheel according to the torsion angle;

[0022] according to the torsion angle and the wind speed, find corresponding second geometric parameters from a preset corresponding relationship.

[0023] Optionally, the determining the safety parameter of the double wind wheel comprises:

[0024] when a first difference between the total efficiency of the double wind wheel at a previous time and the total efficiency of the double wind wheel at a later time is greater than or equal to a first threshold value, and a second difference between the second geometric parameter of the double wind wheel at the previous time and the second geometric parameter of the double wind wheel at the later time is greater than or equal to a second threshold value, determine the safety parameter of the double wind wheel.

[0025] The second aspect embodiment of the present disclosure provides a wind turbine parameter determination device, comprising:

[0026] an obtaining module configured to obtain a first geometric parameter of a double wind wheel in the wind turbine;

[0027] a first determining module configured to determine an aerodynamic load and total efficiency of the double wind wheel according to the first geometric parameter;

[0028] a second determining module configured to determine a second geometric parameter of the double wind wheel according to the aerodynamic load;

[0029] The third determining module is configured to return to execute the steps of determining the aerodynamic load and the total efficiency of the double wind wheel based on the second geometric parameter of the double wind wheel until the total efficiency and / or the second geometric parameter of the double wind wheel before and after twice meets a preset condition, and determine the safety parameter of the double wind wheel.

[0030] Optionally, the first determining module is specifically configured to:

[0031] determine the aerodynamic load of the double wind wheel according to the wind speed of the double wind wheel, the rotational speed of the front wind wheel, the tangential velocity component and the radius of the double wind wheel in the first geometric parameter;

[0032] determine the power of the double wind wheel according to a preset induced factor, the incoming flow speed and the air density;

[0033] determine the total efficiency of the double wind wheel according to the power and the incoming flow speed and the air density.

[0034] Optionally, the first determining module is further configured to:

[0035] obtain the reference speed of the front wind wheel and the reference speed of the rear wind wheel in the double wind wheel;

[0036] determine the target induced factor in the double wind wheel;

[0037] determine the power of the front wind wheel and the power of the rear wind wheel according to the reference speed of the front wind wheel and the reference speed of the rear wind wheel in the double wind wheel, the aerodynamic parameter and the target induced factor;

[0038] determine the total efficiency of the double wind wheel according to the power of the front wind wheel and the power of the rear wind wheel.

[0039] Optionally, the second determining module is specifically configured to:

[0040] determine the deformation parameter of the double wind wheel according to the aerodynamic load and the bending moment of the double wind wheel;

[0041] determine the torsion angle of the double wind wheel after deformation according to the deformation parameter;

[0042] determine the wind speed corresponding to the double wind wheel according to the torsion angle;

[0043] determine the second geometric parameter corresponding to the double wind wheel from a preset corresponding relationship according to the torsion angle and the wind speed.

[0044] Optionally, the third determining module is specifically configured to:

[0045] In a case that a first difference between the total efficiency of the double wind wheel before the previous time and the total efficiency of the double wind wheel after the previous time is greater than or equal to a first threshold value, and a second difference between the second geometric parameter of the previous time and the second geometric parameter of the previous time is greater than or equal to a second threshold value, the safety parameter of the double wind wheel is determined.

[0046] The third aspect of the present disclosure provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method for determining the parameters of the wind turbine generator set according to the first aspect of the present disclosure.

[0047] The fourth aspect of the present disclosure provides a non-transitory computer-readable storage medium, which stores a computer program, and the computer program is executable on a processor to implement the method for determining the parameters of the wind turbine generator set according to the first aspect of the present disclosure.

[0048] The fifth aspect of the present disclosure provides a computer program product, and when the instructions in the computer program product are executed on a processor, the method for determining the parameters of the wind turbine generator set according to the first aspect of the present disclosure is executed.

[0049] The method and device for determining the parameters of the wind turbine generator set and the electronic device provided by the present disclosure can first obtain the first geometric parameter of the double wind wheel in the wind turbine generator set, then determine the aerodynamic load and the total efficiency of the double wind wheel according to the first geometric parameter, and determine the second geometric parameter of the double wind wheel according to the aerodynamic load, and return to execute the steps of determining the aerodynamic load and the total efficiency of the double wind wheel based on the second geometric parameter of the double wind wheel until the total efficiency and / or the second geometric parameter of the double wind wheel before and after the previous time meets the preset condition, and the safety parameter of the double wind wheel is determined. Therefore, the aerodynamics and structure solving of the wind turbine blade can be associated, and the aerodynamic performance and structural performance of the double wind wheel are checked through multiple repeated iterations, so as to determine the safety parameter of the double wind wheel, and further to provide a condition for ensuring the safety performance of the double wind wheel operation.

[0050] The additional aspects and advantages of the present disclosure will be partially given in the following description, partially become obvious from the following description, or be known by the practice of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 A flowchart of the method for determining the parameters of the wind turbine generator set provided by another embodiment of the present disclosure;

[0052] Figure 2 A flowchart of the method for determining the parameters of the wind turbine generator set provided by another embodiment of the present disclosure;

[0053] Figure 3A structural schematic diagram of a wind turbine parameter determination device provided by another embodiment of the present disclosure is shown.

[0054] Figure 4 A block diagram of an exemplary electronic device suitable for implementing embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0055] Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings, in which like or similar elements are denoted by the same or similar reference signs, and examples of which are shown in the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present disclosure, and cannot be understood as a limitation of the present disclosure.

[0056] A wind turbine parameter determination method, device and electronic device of embodiments of the present disclosure are described below with reference to the accompanying drawings.

[0057] The wind turbine parameter determination method of embodiments of the present disclosure can be executed by the wind turbine parameter determination device provided by embodiments of the present disclosure, which can be configured in an electronic device.

[0058] Figure 1 A flowchart of the wind turbine parameter determination method provided by embodiments of the present disclosure is shown. As shown in the figure, the wind turbine parameter determination method can include the following steps: Figure 1

[0059] Step 101, obtaining a first geometric parameter of a double rotor in a wind turbine.

[0060] The first geometric parameter can be a blade length, a chord length, a twist angle, a double rotor spacing, etc. of the double rotor, which is not limited by the present disclosure.

[0061] It can be understood that the first geometric parameter of the double rotor in the wind turbine can be obtained by any available means, which is not limited by the present disclosure.

[0062] Step 102, determining an aerodynamic load and a total efficiency of the double rotor according to the first geometric parameter.

[0063] Optionally, the aerodynamic load of the double rotor can be determined according to a double rotor wind speed, a front rotor speed, a tangential velocity component and a double rotor radius.

[0064] The aerodynamic load of the double rotor can satisfy the relationship shown in the following formula (1):

[0065]

[0066] ​Wherein, P1 is the aerodynamic load of the double wind wheel, m is the fluid mass flowing through the front wind wheel, ω1 is the rotating speed of the front wind wheel, r1 is the double wind wheel radius, C θ，1 is the tangential velocity component, and ρ is the air density, and u1 is the inflow speed of the front wind wheel.

[0067] Then, the power of the double wind wheel can be determined according to the preset induction factor, the incoming flow speed, and the air density, wherein the power of the double wind wheel can satisfy the relationship shown in the following formula (2):

[0068]

[0069] Wherein, P is the power of the double wind wheel, m is the fluid mass flowing through the front wind wheel, V0 is the incoming flow speed, u1 is the inflow speed of the front wind wheel, ρ is the air density, A0 is the front wind wheel area, and a is the preset induction factor.

[0070] In addition, a can satisfy the relationship shown in the following formula (3):

[0071]

[0072] Wherein, V0 is the incoming flow speed, and u1 is the inflow speed of the front wind wheel.

[0073] Then, the total efficiency of the double wind wheel can be determined according to the power of the double wind wheel and the incoming flow speed and the air density.

[0074] Wherein, the total efficiency of the double wind wheel can satisfy the relationship shown in the following formula (4):

[0075]

[0076] Wherein, C P is the total efficiency of the double wind wheel, P is the power of the double wind wheel, ρ is the air density, A0 is the front wind wheel area, and V0 is the incoming flow speed.

[0077] It should be noted that the above examples are only illustrative and cannot be used as a limitation on the manner of the aerodynamic load, the power, and the total efficiency of the double wind wheel in the embodiments of the present disclosure.

[0078] In step 103, the second geometric parameter of the double wind wheel is determined according to the aerodynamic load.

[0079] Wherein, the second geometric parameter can be the new geometric parameter after the geometric deformation of the double wind wheel. If the double wind wheel does not undergo geometric deformation, the parameter values in the second geometric parameter can be the parameter values in the first geometric parameter. If the deformation occurs, the related parameter values in the first geometric parameter can be updated based on the parameter values after the deformation to determine the corresponding second geometric parameter. The present disclosure does not limit this.

[0080] Optionally, after determining the aerodynamic load of the dual wind turbines, the geometric deformation parameters of the dual wind turbines are determined based on the aerodynamic load, and then the second geometric parameters of the dual wind turbines are determined based on the geometric deformation parameters.

[0081] The geometric deformation parameters of the twin rotors can be the deformation of the torsion angle, the deformation of the blades, etc., and this disclosure does not limit them.

[0082] It is understandable that the greater the aerodynamic load on the dual wind turbines, the greater the geometric deformation parameters of the dual wind turbines may be; conversely, the smaller the aerodynamic load on the dual wind turbines, the smaller the geometric deformation parameters of the dual wind turbines may be. This disclosure does not impose any limitations on this.

[0083] For example, the geometric deformation parameter of a dual-rotor system is the change in torsion angle, such as +δ1. If the torsion angle in the first geometric parameter is δ0, then the torsion angle value after deformation can be determined to be δ0 + δ1. Then, the torsion angle value in the second geometric parameter of the dual-rotor system can be determined to be δ0 + δ1. The other parameter values ​​in the first geometric parameter and the torsion angle value (δ0 + δ1) are used as the second geometric parameter.

[0084] It should be noted that the above examples are merely illustrative and should not be construed as limiting the methods for determining the second geometric parameters in the embodiments of this disclosure.

[0085] Step 104: Based on the second geometric parameters, return to the steps of determining the total efficiency and the second geometric parameters as described above, until the total efficiency and / or the second geometric parameters of the dual wind turbines meet the preset conditions in the two consecutive tests, and determine the safety parameters of the dual wind turbines.

[0086] The preset condition can be a threshold value for the difference in total efficiency between the two wind turbines, or a threshold value for the difference in the second geometric parameter, etc. This disclosure does not limit it.

[0087] After determining the second geometric parameter, the corresponding aerodynamic load and overall efficiency can be determined using this newly determined second geometric parameter. Then, the overall efficiency of the dual wind turbines in two consecutive tests can be compared to determine the difference between the two tests. Similarly, the second geometric parameter in the two tests can be compared to determine the difference between the two tests. If neither the difference in overall efficiency nor the difference in the second geometric parameter in the two tests meets the preset conditions, a new second geometric parameter can be determined based on the aerodynamic load. The process then returns to determine the aerodynamic load and overall efficiency corresponding to the new second geometric parameter. If the difference in overall efficiency and the difference in the second geometric parameter in the two tests meet the preset conditions, the repetitive operation can be stopped.

[0088] The safety parameter range for the dual wind turbines can then be determined as: from the first geometric parameter to the last set of second geometric parameters. Alternatively, the first geometric parameter and each set of second geometric parameters can be defined as the safety parameters for the dual wind turbines, etc.

[0089] It should be noted that the above examples are merely illustrative and should not be construed as limiting the methods for determining the safety parameters of the dual wind turbines in the embodiments of this disclosure.

[0090] In this embodiment, the first geometric parameters of the dual wind turbine rotors in a wind turbine generator set can be obtained first. Then, based on the first geometric parameters, the aerodynamic load and overall efficiency of the dual wind turbine rotors can be determined. Based on the aerodynamic load, the second geometric parameters of the dual wind turbine rotors can be determined. Then, based on the second geometric parameters, the steps of determining the aerodynamic load and overall efficiency of the dual wind turbine rotors are repeated until the overall efficiency and / or the second geometric parameters of the dual wind turbine rotors meet preset conditions, thus determining the safety parameters of the dual wind turbine rotors. Therefore, the aerodynamic and structural solutions of the wind turbine blades can be correlated. Through repeated iterations, the aerodynamic and structural performance of the dual wind turbine rotors can be verified, thereby determining the safety parameters of the dual wind turbine rotors and providing conditions for ensuring the safe operation of the dual wind turbine rotors.

[0091] Figure 2 This is a flowchart illustrating the method for determining wind turbine generator parameters provided in an embodiment of this disclosure. Figure 2 As shown, the method for determining the parameters of this wind turbine generator set may include the following steps:

[0092] Step 201: Obtain the first geometric parameters of the dual wind turbines in the wind turbine generator set.

[0093] Step 202: Determine the aerodynamic load on the dual wind turbines based on the dual wind turbine wind speed, front wind turbine rotation speed, tangential velocity component and dual wind turbine radius in the first geometric parameters.

[0094] It should be noted that the specific content and implementation of steps 201 and 202 can be found in the descriptions of the various embodiments of this disclosure, and will not be repeated here.

[0095] Step 203: Obtain the reference speed of the front wind turbine and the reference speed of the rear wind turbine in the dual wind turbine system.

[0096] Optionally, historical incoming wind data of the dual-rotor wind turbine can be obtained first. Then, the average speed of the incoming wind passing through the front rotor can be determined based on the historical incoming wind data and used as the reference speed at the front rotor. The average wind speed of the incoming wind passing through the rear rotor can also be determined and used as the reference speed at the rear rotor, etc. This disclosure does not limit this.

[0097] The historical incoming wind data may include the average speed of any incoming wind passing through the dual-rotor wind turbine, the speed of any incoming wind passing through the front rotor, the wind speed of any incoming wind passing through the rear rotor, etc., and this disclosure does not limit it.

[0098] Step 204: Determine the target induction factor in the dual wind turbines.

[0099] The induction factor can be of various types, such as the axial induction factor of the front wind turbine, the tangential induction factor of the front wind turbine, the axial induction factor of the rear wind turbine, the tangential induction factor of the rear wind turbine, the axial induction factor of the lower circumference of the rear wind turbine, and the tangential induction factor at the inlet of the rear wind turbine, etc. This disclosure does not limit it.

[0100] Optionally, the target induction factors in the dual wind turbines can be pre-set values. Alternatively, the value range of each induction factor can be pre-defined, and any value can be selected from the value range of each induction factor as the target induction factor, etc. This disclosure does not limit this.

[0101] Step 205: Determine the power of the front and rear wind turbines based on the reference speeds of the front and rear wind turbines, aerodynamic parameters, and target induction factor.

[0102] Step 206: Determine the total efficiency of the dual wind turbines based on the power of the front wind turbine and the power of the rear wind turbine.

[0103] Among them, the power P of the front wind turbine 01 The relationship shown in formula (5) can be satisfied:

[0104]

[0105] Where ρ is the air density, V1 is the reference speed of the front wind turbine, ω1 is the rotational angular velocity of the front wind turbine, a1 is the tangential induction factor of the front wind turbine, and r1 is the blade radius of the front wind turbine.

[0106] The power P of the rear wind turbine 02 The relationship shown in formula (6) can be satisfied:

[0107]

[0108] Where ρ is the air density, V2 is the reference velocity of the rear rotor, ω1 is the rotational angular velocity of the rear rotor, b1 is the tangential induction factor of the rear rotor, a2 is the tangential induction factor at the inlet of the rear rotor, and R2 is the blade radius of the rear rotor.

[0109] In addition, the overall efficiency C of the twin wind turbines P The relationship shown in formula (7) can be satisfied:

[0110]

[0111] It should be noted that the above examples are merely illustrative and should not be construed as limiting the methods for determining the efficiency of the front and rear impellers and the overall efficiency in the dual-impeller configuration of this disclosure.

[0112] Step 207: Determine the deformation parameters of the twin wind turbines based on their aerodynamic loads and bending moments.

[0113] The bending moment of the twin wind turbines can be determined in any acceptable manner, and this disclosure does not limit this method.

[0114] In addition, the aerodynamic load and bending moment of the twin wind turbines can satisfy the relationships shown in the following formulas (8) and (9):

[0115]

[0116]

[0117] Where M is the bending moment of the twin wind turbines, q is the matrix, and x, y, z are the coordinates of the geometric points. This represents the first derivative, which indicates velocity in three directions. The second derivative represents the acceleration in three directions.

[0118] Understandably, the coordinates of each part of the blades in a dual-rotor system, such as each point on the blade, can be determined based on the above formula.

[0119] Step 208: Determine the torsion angle of the twin wind turbines after deformation based on the deformation parameters.

[0120] Among them, the deformation parameters can be determined based on the coordinates of the same part of the blade before and after two measurements. For example, if the coordinates of two points in any part A of the blade are (x1, y1) and (x2, y2), the coordinates of the two points after the second measurement can be determined according to the above formula (9) as (x1, y1) and (x2, y2). 1 ,y 1 ), (x 2 ,y 2 If x ), then the deformation parameters for the two tests can be: (x) 2 -x 1 ), (y 2 -y 1 ), (x2-x1), (y2-y1), thus it can be determined that the torsion angle of any part A after deformation can satisfy the relationship shown in the following formula (10):

[0121]

[0122] Step 209: Determine the wind speed corresponding to the dual wind turbines based on the torsion angle.

[0123] The relationship satisfied by the twist angle can be expressed by the following formula (11):

[0124]

[0125] Where u is the local inflow velocity of the blade element, Ω is the rotor speed, r is the local rotational radius of the blade element, and a is the axial induction factor. 1 It is the tangential inducible factor, v flap It is the speed of Ye Su's local swinging motion, v edge It is the local oscillation speed of the leaf.

[0126] Therefore, according to formula (11), the wind speed u and the wind speed in both directions can be determined: V flap and V edge .

[0127] Step 210: Based on the torsion angle and wind speed, search from the preset correspondence to determine the corresponding second geometric parameter.

[0128] The preset correspondence may include the corresponding second geometric parameters under different torsion angles and wind speeds. This disclosure does not limit this.

[0129] For example, the preset correspondence can be as follows: when the torsion angle is 1° and the wind speed is u1, V1, V2, the corresponding geometric parameter can be A; when the torsion angle is 2° and the wind speed is u2, V3, V4, the corresponding geometric parameter can be B; when the torsion angle is 3° and the wind speed is u3, V5, V6, the corresponding geometric parameter can be C. If the current torsion angle is determined to be 2° and the wind speed is u2, V3, V4, according to this preset correspondence, the corresponding second geometric parameter can be determined to be B.

[0130] It should be noted that the above examples are merely illustrative and should not be construed as limiting the methods for determining the second geometric parameters in the embodiments of this disclosure.

[0131] Step 211: If the first difference between the total efficiency of the two wind turbines in the previous cycle and the total efficiency in the next cycle is greater than or equal to the first threshold, and the second difference between the second geometric parameters in the previous cycle and the second geometric parameters in the next cycle is greater than or equal to the second threshold, determine the safety parameters of the wind turbines.

[0132] The first threshold and the second threshold can be pre-set values. For example, the first threshold can be 0.01, 0.02, etc., and the second threshold can be 0.001, 0.01, etc. This disclosure does not limit these values.

[0133] For example, if the first threshold is 0.01 and the second threshold is 0.001, and the total efficiency of the dual wind turbines is 0.44 in the previous test and 0.445 in the subsequent test, the first difference between the two is 0.005, which is less than 0.01; if the torsion angles of the dual wind turbines are the same in the two tests, then the second difference is 0. At this point, the steps of determining the aerodynamic load and total efficiency of the dual wind turbines can be stopped. After that, the parameters within the range of the first geometric parameters to the last set of second geometric parameters can be determined as the safety parameters of the dual wind turbines.

[0134] It should be noted that the above examples are merely illustrative and should not be construed as limiting the methods for determining the safety parameters of the dual wind turbines in the embodiments of this disclosure.

[0135] In this embodiment, the first geometric parameters of the dual wind turbines in a wind turbine generator set can be obtained. Then, based on the wind speed of the dual wind turbines, the rotational speed of the front wind turbine, the tangential velocity component, and the radius of the dual wind turbines from the first geometric parameters, the aerodynamic load of the dual wind turbines can be determined. Next, the reference speeds of the front and rear wind turbines can be obtained, and the target induction factor in the dual wind turbines can be determined. Then, based on the reference speeds of the front and rear wind turbines, the aerodynamic parameters, and the target induction factor, the power of the front and rear wind turbines can be determined. Finally, based on the power of the front and rear wind turbines... The overall efficiency of the dual wind turbines is determined, and based on the aerodynamic loads and bending moments of the dual wind turbines, their deformation parameters are determined. Then, based on the deformation parameters, the torsion angle after deformation is determined, and based on the torsion angle, the corresponding wind speed is determined. Then, based on the torsion angle and wind speed, the corresponding second geometric parameters are determined by searching a preset correspondence. Finally, if the first difference between the previous and subsequent overall efficiencies of the dual wind turbines is greater than or equal to a first threshold, and the second difference between the previous and subsequent second geometric parameters is greater than or equal to a second threshold, the safety parameters of the wind turbines are determined. Thus, the aerodynamic and structural solutions of the wind turbine blades can be correlated. Through repeated iterations, the aerodynamic and structural performance of the dual wind turbines is verified, thereby determining the safety parameters of the dual wind turbines and providing conditions for ensuring the safe operation of the dual wind turbines.

[0136] To achieve the above embodiments, this disclosure also proposes a device for determining the parameters of a wind turbine generator set.

[0137] Figure 3 This is a schematic diagram of the structure of the device for determining the parameters of a wind turbine generator set provided in an embodiment of this disclosure.

[0138] like Figure 3 As shown, the device 300 for determining the parameters of the wind turbine generator set may include: an acquisition module 310, a first determination module 320, a second determination module 330, and a third determination module 340.

[0139] The acquisition module 310 is used to acquire the first geometric parameters of the dual wind turbines in the wind turbine generator set.

[0140] The first determining module 320 is used to determine the aerodynamic load and total efficiency of the twin wind turbines based on the first geometric parameters.

[0141] The second determining module 330 is used to determine the second geometric parameters of the twin wind turbines based on the aerodynamic load.

[0142] The third determining module 340 is used to return to the above steps of determining the aerodynamic load and total efficiency of the dual wind turbines based on the second geometric parameters of the dual wind turbines, until the total efficiency and / or the second geometric parameters of the dual wind turbines meet the preset conditions in the two consecutive tests, and to determine the safety parameters of the dual wind turbines.

[0143] Optionally, the first determining module 320 is specifically used for:

[0144] The aerodynamic load of the dual wind turbines is determined based on the dual wind turbine wind speed, front wind turbine rotation speed, tangential velocity component and dual wind turbine radius in the first geometric parameters.

[0145] The power of the dual impellers is determined based on the preset induction factor, incoming flow velocity, and air density.

[0146] The overall efficiency of the dual impellers is determined based on the power, the incoming flow velocity, and the air density.

[0147] Optionally, the first determining module 320 is further specifically used for:

[0148] Obtain the reference speed of the front wind turbine and the reference speed of the rear wind turbine in the dual wind turbine configuration;

[0149] Determine the target induction factor in the dual wind turbines;

[0150] The power of the front wind turbine and the power of the rear wind turbine are determined based on the reference speeds of the front and rear wind turbines in the dual wind turbine system, the aerodynamic parameters, and the target induction factor.

[0151] The overall efficiency of the dual wind turbines is determined based on the power of the front wind turbine and the power of the rear wind turbine.

[0152] Optionally, the second determining module 330 is specifically used for:

[0153] The deformation parameters of the dual wind turbines are determined based on the aerodynamic load and bending moment of the dual wind turbines.

[0154] The torsion angle of the dual wind turbines after deformation is determined based on the deformation parameters.

[0155] The wind speed corresponding to the dual wind turbines is determined based on the stated torsion angle.

[0156] Based on the torsion angle and the wind speed, a search is performed from a preset correspondence to determine the corresponding second geometric parameter.

[0157] Optionally, the third determining module 340 is specifically used for:

[0158] The safety parameters of the dual wind turbines are determined when the first difference between the total efficiency of the previous and subsequent cycles is greater than or equal to a first threshold, and the second difference between the second geometric parameters of the previous and subsequent cycles is greater than or equal to a second threshold.

[0159] The functions and specific implementation principles of the modules described in this embodiment can be found in the above method embodiments, and will not be repeated here.

[0160] The wind turbine generator parameter determination device provided in this embodiment can first obtain the first geometric parameters of the two wind turbine rotors in the wind turbine generator. Then, based on the first geometric parameters, the aerodynamic load and total efficiency of the two wind turbine rotors can be determined. Based on the aerodynamic load, the second geometric parameters of the two wind turbine rotors can be determined. Then, based on the second geometric parameters of the two wind turbine rotors, the above steps of determining the aerodynamic load and total efficiency of the two wind turbine rotors are repeated until the total efficiency and / or the second geometric parameters of the two wind turbine rotors meet the preset conditions, thereby determining the safety parameters of the two wind turbine rotors. In this way, the aerodynamic and structural solutions of the wind turbine blades can be correlated. Through repeated iterations, the aerodynamic and structural performance of the two wind turbine rotors can be verified, thereby determining the safety parameters of the two wind turbine rotors, and thus providing conditions for ensuring the safe operation performance of the two wind turbine rotors.

[0161] To implement the above embodiments, this disclosure also proposes an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the method for determining wind turbine generator parameters as proposed in the foregoing embodiments of this disclosure.

[0162] To implement the above embodiments, this disclosure also proposes a non-transitory computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for determining wind turbine generator parameters as proposed in the foregoing embodiments of this disclosure.

[0163] To implement the above embodiments, this disclosure also proposes a computer program product that, when executed by an instruction processor, performs a method for determining wind turbine generator parameters as described in the foregoing embodiments of this disclosure.

[0164] Figure 4 A block diagram of an exemplary electronic device suitable for implementing embodiments of the present disclosure is shown.Figure 4 The electronic device 12 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments disclosed herein.

[0165] like Figure 4 As shown, the electronic device 12 is represented in the form of a general-purpose computing device. The components of the electronic device 12 may include, but are not limited to: one or more processors or processing units 16, system memory 28, and bus 18 connecting different system components (including system memory 28 and processing unit 16).

[0166] Bus 18 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. Examples of these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0167] Electronic device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by electronic device 12, including volatile and non-volatile media, removable and non-removable media.

[0168] Memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and / or cache memory 32. Electronic device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (… Figure 4 Not shown; usually referred to as a "hard drive"). Although Figure 4Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk") and an optical disc drive for reading and writing to a removable non-volatile optical disc (e.g., a compact disc read-only memory (CD-ROM), a digital video disc read-only memory (DVD-ROM), or other optical media) may be provided. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of this disclosure.

[0169] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28. Such program modules 42 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 42 typically perform the functions and / or methods described in the embodiments of this disclosure.

[0170] Electronic device 12 can also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), and with one or more devices that enable a user to interact with electronic device 12, and / or with any device that enables electronic device 12 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 22. Furthermore, electronic device 12 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 20. As shown, network adapter 20 communicates with other modules of electronic device 12 via bus 18. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with electronic device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0171] The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, such as implementing the methods mentioned in the foregoing embodiments.

[0172] According to the technical solution of this disclosure, the first geometric parameters of the dual wind turbines in a wind turbine generator set can be obtained first. Then, based on the first geometric parameters, the aerodynamic load and overall efficiency of the dual wind turbines can be determined. Based on the aerodynamic load, the second geometric parameters of the dual wind turbines can be determined. Then, based on the second geometric parameters, the steps of determining the aerodynamic load and overall efficiency of the dual wind turbines are repeated until the overall efficiency and / or the second geometric parameters of the dual wind turbines meet preset conditions, thus determining the safety parameters of the dual wind turbines. Therefore, the aerodynamic and structural solutions of the wind turbine blades can be correlated. Through repeated iterations, the aerodynamic and structural performance of the dual wind turbines can be verified, thereby determining the safety parameters of the dual wind turbines and providing conditions for ensuring the safe operation of the dual wind turbines.

[0173] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0174] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0175] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0176] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0177] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0178] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0179] Furthermore, the functional units in the various embodiments of this disclosure can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0180] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A method for determining the parameters of a wind turbine generator set, characterized in that, include: Obtain the first geometric parameters of the dual wind turbines in the wind turbine generator set; The first geometric parameter includes any one or more of the following parameters: blade length, chord length, twist angle, and distance between the two wind turbines; Based on the first geometric parameters, the aerodynamic load and overall efficiency of the dual wind turbines are determined; The second geometric parameters of the twin wind turbines are determined based on the aerodynamic load. The second geometric parameter includes the new geometric parameter after the dual wind turbines undergo geometric deformation; Based on the second geometric parameters of the dual wind turbines, return to the steps of determining the aerodynamic load and total efficiency of the dual wind turbines until the total efficiency and / or second geometric parameters of the dual wind turbines meet the preset conditions in the two consecutive tests, and determine the safety parameters of the dual wind turbines. The step of determining the second geometric parameters of the dual wind turbines based on their aerodynamic loads includes: The deformation parameters of the dual wind turbines are determined based on the aerodynamic load and bending moment of the dual wind turbines. The torsion angle of the dual wind turbines after deformation is determined based on the deformation parameters. The wind speed corresponding to the dual wind turbines is determined based on the stated torsion angle. Based on the torsion angle and the wind speed, a search is performed from a preset correspondence to determine the corresponding second geometric parameter; The step of determining the aerodynamic load and overall efficiency of the dual wind turbines based on the first geometric parameters includes: The aerodynamic load of the dual wind turbines is determined based on the radius and wind speed of the dual wind turbines, the rotational speed of the front wind turbine, and the tangential velocity component in the first geometric parameters. The power of the dual impellers is determined based on the preset induction factor, incoming flow velocity, and air density. The overall efficiency of the dual impellers is determined based on the power, the incoming flow velocity, and the air density; or, The step of determining the aerodynamic load and overall efficiency of the dual wind turbines based on the first geometric parameters includes: Obtain the reference speed of the front wind turbine and the reference speed of the rear wind turbine in the dual wind turbine configuration; Determine the target induction factor in the dual wind turbines; The power of the front wind turbine and the power of the rear wind turbine are determined based on the reference speeds of the front and rear wind turbines in the dual wind turbine system, the aerodynamic parameters, and the target induction factor. The overall efficiency of the dual wind turbines is determined based on the power of the front wind turbine and the power of the rear wind turbine.

2. The method as described in claim 1, characterized in that, Determining the safety parameters of the dual wind turbines includes: The safety parameters of the dual wind turbines are determined when the first difference between the total efficiency of the previous and subsequent cycles is greater than or equal to a first threshold, and the second difference between the second geometric parameters of the previous and subsequent cycles is greater than or equal to a second threshold.

3. A device for determining the parameters of a wind turbine generator set, characterized in that, include: The acquisition module is used to acquire the first geometric parameters of the dual wind turbines in the wind turbine generator set; The first geometric parameter includes any one or more of the following parameters: blade length, chord length, twist angle, and distance between the two wind turbines; The first determining module is used to determine the aerodynamic load and total efficiency of the dual wind turbines based on the first geometric parameters. The second determining module is used to determine the second geometric parameters of the dual wind turbines based on the aerodynamic load; the second geometric parameters include the new geometric parameters of the dual wind turbines after geometric deformation. The third determining module is used to return to the above steps of determining the aerodynamic load and total efficiency of the dual wind turbines based on the second geometric parameters of the dual wind turbines, until the total efficiency and / or the second geometric parameters of the dual wind turbines meet the preset conditions in the two consecutive tests, and to determine the safety parameters of the dual wind turbines. Specifically, the second determining module is used for: The deformation parameters of the dual wind turbines are determined based on the aerodynamic load and bending moment of the dual wind turbines. The torsion angle of the dual wind turbines after deformation is determined based on the deformation parameters. The wind speed corresponding to the dual wind turbines is determined based on the stated torsion angle. Based on the torsion angle and the wind speed, a search is performed from a preset correspondence to determine the corresponding second geometric parameter; The first determining module is specifically used for: The aerodynamic load of the dual wind turbines is determined based on the dual wind turbine wind speed, front wind turbine rotation speed, tangential velocity component and dual wind turbine radius in the first geometric parameters. The power of the dual impellers is determined based on the preset induction factor, incoming flow velocity, and air density. The overall efficiency of the dual impellers is determined based on the power, the incoming flow velocity, and the air density; or, The first determining module is specifically used for: Obtain the reference speed of the front wind turbine and the reference speed of the rear wind turbine in the dual wind turbine configuration; Determine the target induction factor in the dual wind turbines; The power of the front wind turbine and the power of the rear wind turbine are determined based on the reference speeds of the front and rear wind turbines in the dual wind turbine system, the aerodynamic parameters, and the target induction factor. The overall efficiency of the dual wind turbines is determined based on the power of the front wind turbine and the power of the rear wind turbine.

4. An electronic device, characterized in that, include: processor; Memory for storing the executable instructions of the processor; The processor is configured to invoke and execute executable instructions stored in the memory to implement the method as described in any one of claims 1-2.

5. A non-transitory computer-readable storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the method as described in any one of claims 1-2.

6. A computer program product, characterized in that, It includes a computer program that, when executed by a processor, implements the method as described in any one of claims 1-2.

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