CN110159491B - Semi-automatic design method and device for wind generating set tower - Google Patents

Semi-automatic design method and device for wind generating set tower Download PDF

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CN110159491B
CN110159491B CN201910583532.5A CN201910583532A CN110159491B CN 110159491 B CN110159491 B CN 110159491B CN 201910583532 A CN201910583532 A CN 201910583532A CN 110159491 B CN110159491 B CN 110159491B
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田润利
易权
陈庆
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Sany Renewable Energy Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
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    • G06F30/17—Mechanical parametric or variational design
    • 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
    • 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
    • Y02E10/728—Onshore wind turbines

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Abstract

The invention relates to the field of wind generating sets, in particular to a semi-automatic design method and a semi-automatic design device for a tower of a wind generating set, wherein the semi-automatic design method comprises the following steps: determining at least two flange outer diameter combinations according to the top flange diameter and the bottom flange diameter of the tower, wherein each flange outer diameter combination comprises the top flange diameter and the bottom flange diameter as well as the top flange diameter of any tower section and the bottom flange diameter of the tower section; screening all the flange outer diameter combinations through an optimization algorithm to obtain target flange outer diameter combinations; and in the tower corresponding to the target flange outer diameter combination, the safety coefficient of each tower unit meets a preset safety condition, and the tower corresponding to the target flange outer diameter combination has the lightest mass. The wall thickness of the tower unit is optimized through an optimization algorithm, so that the weight of the tower of the wind generating set is minimized, and the cost of the tower of the wind generating set is reduced.

Description

Semi-automatic design method and device for wind generating set tower
Technical Field
The invention relates to the field of wind generating sets, in particular to a semi-automatic design method and device for a tower of a wind generating set.
Background
The tower is a main bearing part of the wind generating set, and the importance of the tower is more and more obvious along with the increase of the capacity of the wind generating set. The overall manufacturing cost of the tower accounts for a large proportion of the total cost of the wind generating set, and the weight of the tower is related to the supporting structure of the whole wind generating set and is one of the indexes for producing the tower of the wind generating set. This shows the importance of the tower in the design and manufacture of wind energy installations.
Since the main functions of the tower are to support mechanical components of the wind turbine, the power generation system, etc., and to support the force of the wind wheel and the force of the wind acting on the tower, the design of the tower is complex and various calculations are required to satisfy the functions to be implemented. At present, the design method of the wall thickness of the tower is concerned about the functions to be realized, and a reasonable and advanced method acknowledged in the industry does not exist, so that the wall thickness of the tower is thicker and the cost is higher.
Disclosure of Invention
The embodiment of the invention aims to provide a semi-automatic design method for the wall thickness of a tower of a wind generating set, so as to achieve the aim of optimizing the wall thickness of the tower of the wind generating set.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, an embodiment of the present invention provides a semi-automatic design method for a tower wall thickness of a wind turbine generator system, including: determining at least two flange outer diameter combinations according to the top flange diameter and the bottom flange diameter of the tower, wherein each flange outer diameter combination comprises the top flange diameter and the bottom flange diameter as well as the top flange diameter of any tower section and the bottom flange diameter of the tower section; screening all the flange outer diameter combinations through an optimization algorithm to obtain target flange outer diameter combinations; and in the tower corresponding to the target flange outer diameter combination, the safety coefficient of each tower unit meets a preset safety condition, and the tower corresponding to the target flange outer diameter combination has the lightest mass.
In a second aspect, an embodiment of the present invention further provides a wind turbine generator system tower semiautomatic design apparatus, including a processor, a memory, an I/O interface, and a bus, where the I/O interface is used for exchanging data with an external device, the memory stores machine-readable instructions executable by the processor, the processor and the memory communicate with each other through the bus, and the processor executes the machine-readable instructions to perform the steps of the wind turbine generator system tower semiautomatic design method described above.
The semi-automatic design method for the tower of the wind generating set provided by the embodiment of the invention comprises the following steps: determining at least two flange outer diameter combinations according to the top flange diameter and the bottom flange diameter of the tower, wherein each flange outer diameter combination comprises the top flange diameter and the bottom flange diameter as well as the top flange diameter of any tower section and the bottom flange diameter of the tower section; screening all the flange outer diameter combinations through an optimization algorithm to obtain target flange outer diameter combinations; and in the tower corresponding to the target flange outer diameter combination, the safety coefficient of each tower unit meets a preset safety condition, and the tower corresponding to the target flange outer diameter combination has the lightest mass. The wall thickness of the tower unit is optimized through an optimization algorithm, so that the weight of the tower of the wind generating set is minimized, and the cost of the tower of the wind generating set is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 illustrates a schematic structural view of a wind turbine generator system tower provided by an embodiment of the present invention.
FIG. 2 illustrates a schematic structural view of a tower section provided by an embodiment of the present invention.
FIG. 3 shows a flow chart of a semi-automatic design method for the wall thickness of a tower of a wind generating set according to an embodiment of the invention.
Fig. 4 shows a flow chart of sub-steps of step 302 provided by an embodiment of the present invention.
Fig. 5 shows a flow diagram of sub-steps of sub-step 302-1 provided by an embodiment of the present invention.
Fig. 6 shows a functional structure diagram of a semiautomatic design device of a wind generating set tower provided by the embodiment of the invention.
Icon: 100-wind generating set tower; 10-a tower section; 1-a flange; 12-a tower unit; 200-a semi-automatic design device for a tower of a wind generating set; 210-a processor; 220-a memory; 230-I/O interface; 240-bus.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Referring to fig. 1, a schematic structural diagram of a tower of a wind turbine generator system according to an embodiment of the present invention is shown.
The wind park tower 100 may be divided into a plurality of tower sections 10, and the wind park tower 100 shown in fig. 1 consists of five tower sections 10, but is not limited to five tower sections 10, as the case may be. There is one flange 1 at each of the top and bottom of the wind turbine tower 100 and one flange 1 between adjacent tower sections 10, as shown, there is also a flange 3 and a flange 5.
Fig. 2 is a schematic structural diagram of a tower section according to an embodiment of the present invention.
Tower section 10 may be divided into a plurality of tower units 12, with tower section 10 shown in fig. 2 being comprised of ten tower units 12, but not limited to ten tower units 12, as the case may be.
Referring to fig. 3, a flowchart of a semi-automatic design method for a tower wall thickness of a wind turbine generator system according to an embodiment of the present invention is shown.
Step 301, determining at least two flange outer diameter combinations according to the diameter of the top flange and the diameter of the bottom flange of the tower.
With continued reference to fig. 1, each flange outer diameter combination includes a top flange diameter and a bottom flange diameter (e.g., flange 1 is the tower's lower flange diameter, flange 5 is the tower's top flange diameter), and a top flange diameter of any one tower section and a bottom flange diameter of the tower section (e.g., flange 1 can also be the tower's 10 lower flange diameter, and flange 3 is the tower's 10 top flange diameter).
The diameter of the flange refers to the diameter of the flange, and the combination of the outer diameters of the flanges refers to the combination of the diameters of the flanges of the tower.
The number of tower sections is obtained firstly, and how many flange diameters the flange outer diameter combination comprises is determined according to the number of the tower sections, for example, 5 tower sections comprise 6 flange diameters.
And then acquiring a load spectrum of the tower, and setting the diameter of a top flange and the diameter of a bottom flange of the tower according to design experience. In one possible embodiment, the top flange diameter may be, but is not limited to, 3000mm and the bottom flange diameter may be, but is not limited to, 4300 mm. After the diameters of the top flange and the bottom flange of the tower are determined, other flange diameters are obtained according to a preset strategy, such as decreasing by 200mm each time from the diameter of the bottom flange, and other values are also possible, which is only an example, as long as the requirement that the diameter of the top flange of each tower section is less than or equal to the diameter of the bottom flange is met. And obtaining all flange outer diameter combinations according to a selected preset strategy. For example, in one possible embodiment, the combination of flange outer diameters may be, but is not limited to, (4300mm, 3000mm), (4300mm, 4000mm, 3800mm, 3500mm, 3000 mm).
And step 302, screening all flange outer diameter combinations through an optimization algorithm to obtain target flange outer diameter combinations.
It should be noted that, in the tower corresponding to the target flange outer diameter combination, the safety factor of each tower unit meets the preset safety condition, and the tower corresponding to the target flange outer diameter combination has the lightest mass.
Step 302 includes sub-step 302-1 and sub-step 302-2, which are not mentioned in this step and will be described in detail in the sub-steps thereof. Fig. 4 is a flowchart illustrating the sub-steps of step 302 according to an embodiment of the present invention.
And a substep 302-1, screening all flange outer diameter combinations through preset safety conditions to obtain at least one flange outer diameter combination to be matched.
It should be noted that, in the tower corresponding to the flange outer diameter combination to be matched, the safety factor of each tower unit meets the preset safety condition.
Sub-step 302-1 includes sub-step 302-1-1, sub-step 302-1-2, and sub-step 302-1-3, where nothing is mentioned in this step and will be described in detail in the sub-steps thereof. Referring to fig. 5, a flow chart of the sub-step of sub-step 302-1 according to an embodiment of the present invention is shown.
And a substep 302-1-1, judging whether the safety coefficient of each tower unit in the tower corresponding to each flange outer diameter combination meets a preset safety condition.
The safety factors include strength safety margin, fatigue damage and buckling safety margin. Namely, whether the strength safety margin, the fatigue damage and the buckling safety margin meet preset safety conditions is judged.
Wherein the strength safety margin satisfies the following formula:
Figure BDA0002112621390000071
wherein σdDesigning allowable stress for tower material, and
Figure BDA0002112621390000072
σfallowing stress, gamma, for the materialmThe safety coefficient of the material is set; the sigmaeqvIs an equivalent stress;
the equivalent stress satisfies the following formula:
Figure BDA0002112621390000081
wherein the content of the first and second substances,
Figure BDA0002112621390000082
in order to be under a positive stress,
Figure BDA0002112621390000083
is shear stress; mxyIs the resultant bending moment on the tower section, FzFor axial loads on tower sections, MZFor the torque load on the tower section, FxyFor resultant shear loads on the tower section, Wb,hIs the tower flexural section modulus, WtIs the tower torsional section modulus, AhIs the tower cross-sectional area.
The fatigue damage satisfies the following formula:
Figure BDA0002112621390000084
wherein, Delta sigmaiIs the actual stress range of the tower, niIs Δ σiNumber of cycles of (1), NDThe number of cycles corresponding to the S-N curve inflection point of the tower material is determined; m is the inverse slope of the S-N curve of the tower material. Gamma rayMIs the material polynomial coefficient, ks is the thickness reduction coefficient;
ks satisfies the following formula:
Figure BDA0002112621390000085
wherein e is a difference between wall thicknesses of two adjacent tower units, and e is 0.5 (t)1-t2)， t1、t2The wall thickness of two adjacent tower units, respectively.
The buckling safety margin satisfies the following formula:
Figure BDA0002112621390000091
wherein σx,EdFor tower axial instabilityValue of boundary stress, σx,RdIs the actual instability critical stress value in the axial direction of the tower frame, tauxθ,EdIs the critical stress value of tower shear instability, tauxθ,RdAnd k chi and k tau are dimensionless parameters and are the critical stress values of the actual instability of the tower during shearing.
And a substep 302-1-2 of adjusting the wall thickness of the tower unit if the safety factor of at least one tower unit is not met, until the safety factor of the tower unit meets a preset safety condition.
The adjusted wall thickness is larger than the wall thickness before adjustment.
And a substep 302-1-3, if all the requirements are met, the flange outer diameter combination is the flange outer diameter combination to be matched.
Substep 302-2, determining a target flange outer diameter combination based on at least one flange outer diameter combination to be matched.
It should be noted that the target flange outer diameter combination is the flange outer diameter combination to be matched, which is the lightest tower weight, in at least one flange outer diameter combination to be matched.
Step 303, determining whether the fatigue damage is greater than a predetermined threshold.
The predetermined threshold value satisfies a preset safety condition.
When the fatigue damage meets the preset safety condition but is larger than the preset threshold value, the center alignment optimization needs to be carried out on the tower corresponding to the target flange outer diameter combination, so that the centers of the tower units of the tower are aligned.
And 304, performing center alignment optimization on the tower corresponding to the target flange outer diameter combination.
The constraints for aligning the centers of the tower elements of the tower are: the value of the centered reduction factor kz is made 1.
The intermediate reduction factor kz satisfies the following equation:
Figure BDA0002112621390000101
wherein e is the difference between the wall thicknesses of two adjacent tower units, and e is 0.5 (t)1-t2)，t1、 t2The wall thickness of two adjacent tower units, respectively. When the value of the centering reduction factor is 1, it is characterized that every two adjacent tower units are centered in alignment.
Fig. 6 is a functional structure diagram of a semiautomatic design device for a tower of a wind turbine generator system according to an embodiment of the present invention.
Wind turbine generator set tower semi-automatic design apparatus 200 includes a processor 210, a memory 220, an I/O interface 230, and a bus 240.
The I/O interface 230 is used for data exchange with an external device.
Memory 220 stores machine-readable instructions executable by processor 210.
The processor 210 and the memory 220 are in communication via the bus 240, and the processor 210 executes the machine readable instructions to perform the steps of the wind turbine generator system tower semi-automatic design method described above.
In summary, the semi-automatic design method for the tower of the wind generating set provided by the embodiment of the invention comprises the following steps: determining at least two flange outer diameter combinations according to the top flange diameter and the bottom flange diameter of the tower, wherein each flange outer diameter combination comprises the top flange diameter and the bottom flange diameter as well as the top flange diameter of any tower section and the bottom flange diameter of the tower section; screening all the flange outer diameter combinations through an optimization algorithm to obtain target flange outer diameter combinations; and in the tower corresponding to the target flange outer diameter combination, the safety coefficient of each tower unit meets a preset safety condition, and the tower corresponding to the target flange outer diameter combination has the lightest mass. The wall thickness of the tower unit is optimized through an optimization algorithm, so that the weight of the tower of the wind generating set is minimized, and the cost of the tower of the wind generating set is reduced.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, device or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, devices and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus and method embodiments described above are illustrative only, as the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Claims (5)

1. A semi-automatic design method for a wind generating set tower, said tower comprising at least two tower sections, each of said tower sections comprising at least one tower unit; it is characterized by comprising:
determining at least two flange outer diameter combinations according to the top flange diameter and the bottom flange diameter of the tower, wherein each flange outer diameter combination comprises the top flange diameter and the bottom flange diameter as well as the top flange diameter of any tower section and the bottom flange diameter of the tower section;
screening all the flange outer diameter combinations through an optimization algorithm to obtain target flange outer diameter combinations; in the tower corresponding to the target flange outer diameter combination, the safety coefficient of each tower unit meets a preset safety condition, and the tower corresponding to the target flange outer diameter combination has the lightest mass;
the safety factors comprise strength safety margin, fatigue damage and buckling safety margin;
the strength safety margin satisfies the following formula:
Figure FDA0002478897420000011
wherein σdDesigning allowable stress for tower material, and
Figure FDA0002478897420000012
σfallowing stress, gamma, for the materialmThe safety coefficient of the material is set; the sigmaeqvIs an equivalent stress;
the equivalent stress satisfies the following formula:
Figure FDA0002478897420000013
wherein the content of the first and second substances,
Figure FDA0002478897420000021
in order to be under a positive stress,
Figure FDA0002478897420000022
is shear stress; mxyIs the resultant bending moment on the tower section, FzFor axial loads on tower sections, MZFor the torque load on the tower section, FxyFor resultant shear loads on the tower section, Wb,hIs the tower flexural section modulus, WtIs the tower torsional section modulus, AhIs the tower section area;
the fatigue damage satisfies the following formula:
Figure FDA0002478897420000023
wherein, Delta sigmaiIs the actual stress range of the tower, niIs Δ σiNumber of cycles of (1), NDThe number of cycles corresponding to the S-N curve inflection point of the tower material is determined; m is the inverse of S-N curve of tower materialSlope, gammaMIs the material polynomial coefficient, ks is the thickness reduction coefficient;
ks satisfies the following formula:
Figure FDA0002478897420000024
wherein e is a difference between wall thicknesses of two adjacent tower units, and e is 0.5 (t)1-t2)，t1、t2The wall thickness of two adjacent tower units respectively;
the buckling safety margin satisfies the following formula:
Figure FDA0002478897420000025
wherein σx,EdIs the tower axial instability critical stress value, sigmax,RdIs the actual instability critical stress value in the axial direction of the tower frame, tauxθ,EdIs the critical stress value of tower shear instability, tauxθ,RdIs the actual instability critical stress value of the tower shearing,kχ、kτare dimensionless parameters.
2. The method of claim 1, wherein the screening all the flange outer diameter combinations by an optimization algorithm to obtain a target flange outer diameter combination comprises:
screening all the flange outer diameter combinations through the preset safety conditions to obtain at least one flange outer diameter combination to be matched, wherein the safety coefficient of each tower unit in the tower corresponding to the flange outer diameter combination to be matched meets the preset safety conditions;
and determining the target flange outer diameter combination based on the at least one flange outer diameter combination to be matched, wherein the target flange outer diameter combination is the flange outer diameter combination to be matched, which corresponds to the tower frame with the lightest mass, in the at least one flange outer diameter combination to be matched.
3. The method of claim 2, wherein the screening of all combinations of the flange outer diameters according to the preset safety conditions comprises:
judging whether the safety coefficient of each tower unit in the tower corresponding to each flange outer diameter combination meets the preset safety condition or not;
if all the flange outer diameter combinations meet the requirement, the flange outer diameter combination is the flange outer diameter combination to be matched;
if the safety factor of at least one tower unit is not met, adjusting the wall thickness of the tower unit until the safety factor of the tower unit meets the preset safety condition.
4. The method for semi-automatically designing a wind generating set tower according to claim 1, wherein after the step of screening all the flange outer diameter combinations through an optimization algorithm to obtain a target flange outer diameter combination, the method comprises the following steps:
judging whether the fatigue damage is larger than a preset threshold value; and if so, performing center alignment optimization on the tower corresponding to the target flange outer diameter combination so as to enable the value of the centering reduction coefficient of the tower to be 1.
5. A wind generating set tower semiautomatic design device, characterized by comprising a processor, a memory, an I/O interface and a bus, wherein the I/O interface is used for data exchange with external equipment, the memory stores machine readable instructions executable by the processor, the processor and the memory are communicated through the bus, and the processor executes the machine readable instructions to execute the steps of the generator set tower semiautomatic design method according to any one of claims 1 to 4.
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CN111651843B (en) * 2020-07-03 2023-06-06 三一重能股份有限公司 Design method and system of main frame of generator and electronic equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011083355A1 (en) * 2010-01-05 2011-07-14 Muhammad Yaqub Method for erecting a tower for a wind turbine generator
CN106250646A (en) * 2016-08-09 2016-12-21 内蒙古久和能源装备有限公司 A kind of Optimization Design of tower barrel of wind generating set flange
CN109271722A (en) * 2018-09-27 2019-01-25 江苏金风科技有限公司 The design method and equipment of the wall thickness of the pylon of wind power generating set
CN109707571A (en) * 2018-12-07 2019-05-03 山东中车风电有限公司 Wind turbines hyperbolic-type tower design method and tower based on frequency control

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106523295A (en) * 2016-11-10 2017-03-22 中国电建集团华东勘测设计研究院有限公司 Step-by-step variable diameter cast-in-place concrete wind turbine tower

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011083355A1 (en) * 2010-01-05 2011-07-14 Muhammad Yaqub Method for erecting a tower for a wind turbine generator
CN106250646A (en) * 2016-08-09 2016-12-21 内蒙古久和能源装备有限公司 A kind of Optimization Design of tower barrel of wind generating set flange
CN109271722A (en) * 2018-09-27 2019-01-25 江苏金风科技有限公司 The design method and equipment of the wall thickness of the pylon of wind power generating set
CN109707571A (en) * 2018-12-07 2019-05-03 山东中车风电有限公司 Wind turbines hyperbolic-type tower design method and tower based on frequency control

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