CN111625928A - Offshore wind turbine foundation anti-scouring protection structure and construction method thereof - Google Patents

Offshore wind turbine foundation anti-scouring protection structure and construction method thereof Download PDF

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CN111625928A
CN111625928A CN202010345166.2A CN202010345166A CN111625928A CN 111625928 A CN111625928 A CN 111625928A CN 202010345166 A CN202010345166 A CN 202010345166A CN 111625928 A CN111625928 A CN 111625928A
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刘名名
金鑫
王璐
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Chengdu Univeristy of Technology
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
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Abstract

The invention belongs to the technical field of erosion prevention of offshore wind turbine foundations, and discloses an erosion prevention protection structure of an offshore wind turbine foundation and a construction method thereof, wherein the erosion prevention protection structure of the offshore wind turbine foundation comprises the following components: the system comprises a marine hydrological information acquisition module, an impact force acquisition module, a marine wind speed acquisition module, a fan video acquisition module, a main control module, a fan parameter optimization module, a fan coupling analysis module, a fan fault diagnosis module, an abnormal alarm module, a data storage module and a display module. According to the invention, the optimization of parameters such as the weight, the efficiency, the length of the high-temperature superconducting material and the like of the offshore wind turbine can be automatically carried out according to a calculation formula through a wind turbine parameter optimization module; meanwhile, a more perfect integral coupling analysis method of the offshore wind turbine is established through the wind turbine coupling analysis module, integral coupling reaction analysis of the offshore wind turbine under normal or extreme conditions such as earthquake, wind, ocean current and wave can be carried out, and more reasonable and accurate structural reaction can be obtained.

Description

Offshore wind turbine foundation anti-scouring protection structure and construction method thereof
Technical Field
The invention belongs to the technical field of erosion prevention of offshore wind turbine foundations, and particularly relates to an erosion prevention protection structure of an offshore wind turbine foundation and a construction method of the erosion prevention protection structure.
Background
At present, a fan is a machine which increases gas pressure and discharges gas by means of input mechanical energy, and is a driven fluid machine. The blower is a Chinese habit abbreviation for gas compression and gas conveying machinery, and the blower generally comprises a ventilator, a blower and a wind driven generator. Fans are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and for ventilation and draught of boilers and industrial furnaces and kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grain, wind tunnel wind source and air cushion boat inflating and propelling. However, the existing offshore wind turbine foundation anti-scouring protection structure has poor optimization effect on the wind turbine; meanwhile, the coupling reaction analysis of the whole structure of the fan under the combined action of earthquake, aerodynamic and hydrodynamic loads is inaccurate.
In summary, the problems and disadvantages of the prior art are: the existing offshore wind turbine foundation anti-scouring protection structure has poor optimization effect on the wind turbine; meanwhile, the coupling reaction analysis of the whole structure of the fan under the combined action of earthquake, aerodynamic and hydrodynamic loads is inaccurate.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an anti-scouring protection structure for an offshore wind turbine foundation and a construction method thereof.
The invention is realized in such a way that a construction method of an offshore wind turbine foundation anti-scouring protection structure comprises the following steps:
acquiring real-time data of marine hydrological information by using hydrological monitoring equipment through a marine hydrological information acquisition module; and the impact force acquisition module acquires the force data of the seawater impact fan by using the impact force sensor.
Acquiring real-time data of the offshore wind speed by using a wind speed sensor through an offshore wind speed acquisition module; and the monitoring video data of the offshore wind turbine is acquired by the wind turbine video acquisition module by using the camera.
And step three, controlling the normal work of each module of the offshore wind turbine foundation anti-scouring protection structure by using a main control machine through a main control module.
And fourthly, setting basic parameters of the motor by utilizing an optimization program through a fan parameter optimization module, wherein the basic parameters comprise rated output power, terminal voltage, power factor, rotating speed, pole pair number, operating temperature, average air gap length of the inner diameter of the stator, pole distance of the inner diameter of the stator, average air gap length of the outer diameter of the rotor and pole distance of the outer diameter of the rotor.
Setting armature winding parameters including turns, slot poles, slot phases and slot pitches; determining the magnetic flux of a single slot based on the armature load and the number of conductors connected in series; the cross-sectional area of the conductor and the size of the slot are determined based on the current density of the armature conductor, and the magnetic flux of the monopole is obtained.
Step six, calculating magnetic flux density and setting stator core parameters; based on the magnetic flux densities given by the magnetic poles and yokes, the leakage magnetic coefficients are set, and the magnetic flux densities of the air gap and the stator teeth are calculated.
And seventhly, determining the armature winding structure of the salient pole type offshore wind turbine based on the high-temperature superconducting magnet exciting coil, and designing the end shape and the resistance parameter.
Step eight, setting parameters of the high-temperature superconducting magnet exciting coil and required magnetomotive force; respectively calculating magnetomotive force values required by an air gap and a stator tooth part based on saturation characteristics of the steel material; based on the magnetomotive force of the rotor salient pole and the magnetic yoke, the magnetomotive force values required under the load and no-load conditions are calculated respectively by setting the armature leakage magnetic force and the diamagnetic force.
Step nine, setting excitation winding parameters, and calculating excitation current by setting magnetic flux density based on the size and current carrying capacity of the high-temperature superconducting material; and calculating the cross section area and the magnetic pole height of the excitation winding based on the magnetomotive force value required under the load condition.
Step ten, calculating the magnetomotive force value required by the magnetic pole based on the saturation characteristic of the steel material; calculating armature magnetic leakage and diamagnetic potential under a load condition; and obtaining a magnetomotive force equation under the load condition by calculating the armature magnetic leakage and the diamagnetic potential.
Step eleven, analyzing a three-dimensional magnetic field; calculating magnetic field leakage inductance coefficients and operating currents based on magnetic field distribution simulation of different parts of the salient pole type offshore wind turbine of the high-temperature superconducting magnet exciting coil; wherein the operating current depends on losses generated by the flux flow of the high temperature superconducting material.
Analyzing the weight, loss and efficiency of the salient pole type offshore wind turbine based on the high-temperature superconducting magnet exciting coil, and optimizing the parameters of the wind turbine; wherein the weight is calculated based on parameters of all constituent elements; losses include iron losses, armature resistance losses, stray losses, mechanical losses, fan losses for air cooling, refrigeration losses for cryogenic cooling.
Analyzing the integral coupling of the fan by using an analysis program through a fan coupling analysis module; the fan fault diagnosis module diagnoses the fan fault by using the diagnosis circuit; and carrying out alarm notification by using an alarm through an abnormal alarm module according to the acquired abnormal data.
And step fourteen, storing the collected marine hydrological information, wind speed data, fan monitoring video data, parameter optimization, analysis results, fault diagnosis results and early warning information by using a memory through a data storage module.
And fifteen, displaying the acquired marine hydrological information, the wind speed data, the fan monitoring video data, the parameter optimization, the analysis result, the fault diagnosis result and the real-time data of the early warning information by using a display through a display module.
Further, in the tenth step, the magnetomotive force equation under the load condition is obtained by calculating the armature leakage flux and the diamagnetic potential:
Figure BDA0002469921010000031
Figure BDA0002469921010000032
wherein the content of the first and second substances,
Figure BDA0002469921010000034
Figure BDA0002469921010000041
Eiis an internal voltage, VtIs terminal voltage, FiTo comprise EiMagnetomotive force of (F)0Magnetomotive force under no load condition, FaTo compensate for the magnetomotive force of the armature reaction, F2Is the magnetomotive force under load, KωIs the armature coefficient, P is the number of pole pairs, RaFor armature resistance, α for pole pitch, n1Is the number of armature windings in each phase in series, theta is the power factor angle,
Figure BDA0002469921010000042
is EiAnd VtAngle of (I)aIs armature current, XlFor leakage, XqIs the q-axis armature reaction inductance.
Further, in the twelfth step, the refrigeration loss power P of the low-temperature cooling iscryoThe calculation formula of (2) is as follows:
Figure BDA0002469921010000043
wherein, PchPower dissipated for torque tube flowing through fiberglass reinforced plastic, PrhPower dissipated for flux flow of high temperature superconducting material(ii) a COP is the coefficient of operation of the refrigerator.
Further, in the thirteenth step, the fan coupling analysis module analysis method is as follows:
(1) establishing an offshore wind turbine coupling motion control equation under the combined action of earthquake, wind and wave loads through an analysis program;
(2) developing a seismic load analysis program based on an offshore wind turbine integral coupling model under the combined action of wind and waves in FASTV8.0 and a structural motion control equation in a, and establishing an integral coupling analysis method under the combined action of earthquake, wind and waves;
(3) compiling a main program and each calculation program in FASTV8.0, and compiling data interfaces of each program and a seismic load calculation program;
(4) developing a series of sub-functional programs of the seismic load calculation program: a data transmission program, a data processing program, a seismic motion synthesis program, a seismic motion correction program and a seismic force calculation program;
(5) establishing an offshore wind turbine integral structure coupling reaction analysis method under the earthquake working condition based on the development;
(6) adding an MTMD numerical model based on an offshore wind turbine integral coupling analysis method, and establishing an MTMD control model of local and integral structures of the offshore wind turbine under the action of earthquake;
(7) and (f) adding a TLCD numerical model based on the offshore wind turbine integral coupling analysis method in f, and establishing a TLCD control model of the offshore wind turbine cabin under the earthquake action.
Further, in the step (2), the earthquake load analysis program is an independent program, which not only independently performs dynamic response analysis of the offshore wind turbine under the condition of still water plus earthquake, but also performs structural coupling dynamic response analysis under the joint action of earthquake, wind and wave by combining with the aeroelasticity analysis program of the FAST software and the hydrodynamic calculation program.
Further, in step (6), the numerical model of the tower MTMD includes the following steps:
developing a fan tower tube MTMD numerical simulation program based on a control system program in FASTV 8.0; establishing a data interface with a tower barrel MTMD numerical simulation program in a main program and each subprogram program;
the MTMD numerical simulation program of the wind turbine tower barrel comprises the following functional programs: data transmission program, MTMD parameter setting module, and control load calculation program.
Further, in step (7), the TLCD numerical model building mainly includes the following steps:
establishing a coupling motion equation of the TLCD and the offshore wind turbine structure;
developing an offshore wind turbine TLCD control model based on a TLCD coupling motion control equation, wherein the TLCD control model comprises the following functional programs: a data transmission program, a TLCD parameter setting program and a TLCD motion equation solving program.
Another object of the present invention is to provide an offshore wind turbine foundation erosion protection structure using the construction method of the offshore wind turbine foundation erosion protection structure, where the offshore wind turbine foundation erosion protection structure includes:
the system comprises a marine hydrological information acquisition module, an impact force acquisition module, a marine wind speed acquisition module, a fan video acquisition module, a main control module, a fan parameter optimization module, a fan coupling analysis module, a fan fault diagnosis module, an abnormal alarm module, a data storage module and a display module.
The marine hydrological information acquisition module is connected with the main control module and is used for acquiring real-time data of marine hydrological information through the hydrological monitoring equipment;
the impact force acquisition module is connected with the main control module and used for acquiring the force data of the seawater impact fan through the impact force sensor;
the offshore wind speed acquisition module is connected with the main control module and used for acquiring real-time data of offshore wind speed through the wind speed sensor;
the fan video acquisition module is connected with the main control module and used for acquiring monitoring video data of the offshore fan through the camera;
the main control module is connected with the offshore hydrological information acquisition module, the impact force acquisition module, the offshore wind speed acquisition module, the fan video acquisition module, the fan parameter optimization module, the fan coupling analysis module, the fan fault diagnosis module, the abnormal alarm module, the data storage module and the display module and is used for controlling the normal work of each module of the offshore fan foundation anti-scouring protection structure through the main control machine;
the fan parameter optimization module is connected with the main control module and used for optimizing fan parameters through an optimization program;
the fan coupling analysis module is connected with the main control module and used for analyzing the integral coupling of the fan through an analysis program;
the fan fault diagnosis module is connected with the main control module and used for diagnosing fan faults through the diagnosis circuit;
the abnormity alarm module is connected with the main control module and is used for carrying out alarm notification according to the acquired abnormal data through the alarm;
the data storage module is connected with the main control module and used for storing the collected marine hydrological information, wind speed data, fan monitoring video data, parameter optimization, analysis results, fault diagnosis results and early warning information through a memory;
and the display module is connected with the main control module and used for displaying the acquired marine hydrological information, the wind speed data, the fan monitoring video data, the parameter optimization, the analysis result, the fault diagnosis result and the real-time data of the early warning information through a display.
Another object of the present invention is to provide a computer program product stored on a computer readable medium, comprising a computer readable program, which when executed on an electronic device, provides a user input interface to implement the method for constructing an anti-erosion protection structure for an offshore wind turbine foundation.
Another object of the present invention is to provide a computer-readable storage medium storing instructions which, when executed on a computer, cause the computer to execute the method for constructing the anti-erosion protection structure for the foundation of the offshore wind turbine.
By combining all the technical schemes, the invention has the advantages and positive effects that: the optimization of parameters such as the weight, the efficiency, the length of the high-temperature superconducting material and the like of the offshore wind turbine can be automatically carried out according to a calculation formula through the wind turbine parameter optimization module, and the optimization has a key improvement effect on the performance optimization of the motor due to the fact that the optimization process comprises two closed-loop feedback loops of a magnetic field leakage inductance coefficient and an operating current; meanwhile, a more perfect integral coupling analysis method of the offshore wind turbine is established through the wind turbine coupling analysis module, integral coupling reaction analysis of the offshore wind turbine under normal or extreme conditions such as earthquake, wind, ocean current and wave can be carried out, and more reasonable and accurate structural reaction can be obtained.
Drawings
Fig. 1 is a flow chart of a construction method of an anti-scour protection structure for an offshore wind turbine foundation provided by an embodiment of the invention.
FIG. 2 is a block diagram of an anti-erosion protection structure of an offshore wind turbine foundation according to an embodiment of the present invention;
in the figure: 1. the marine hydrology information acquisition module; 2. an impact force acquisition module; 3. an offshore wind speed acquisition module; 4. a fan video acquisition module; 5. a main control module; 6. a fan parameter optimization module; 7. a fan coupling analysis module; 8. a fan fault diagnosis module; 9. an anomaly alert module; 10. a data storage module; 11. and a display module.
Fig. 3 is a flowchart of a method for optimizing a fan parameter through an optimization program according to an embodiment of the present invention.
Fig. 4 is a flowchart of a method for analyzing the overall coupling of the wind turbine through an analysis program according to an embodiment of the present invention.
Fig. 5 is a flowchart of a method for establishing a TLCD numerical model according to an embodiment of the present invention.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
The structure of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a construction method of an anti-erosion protection structure for an offshore wind turbine foundation provided by an embodiment of the present invention includes the following steps:
and S101, acquiring real-time data of marine hydrological information by using a marine hydrological information acquisition module and a hydrological monitoring device.
And S102, acquiring force data of the seawater impact fan by using an impact force sensor through an impact force acquisition module.
S103, acquiring real-time data of the offshore wind speed by using a wind speed sensor through an offshore wind speed acquisition module; and the monitoring video data of the offshore wind turbine is acquired by the wind turbine video acquisition module by using the camera.
And S104, controlling the normal work of each module of the offshore wind turbine foundation anti-scouring protection structure by using a main control machine through a main control module.
S105, optimizing the fan parameters by using an optimization program through a fan parameter optimization module; and analyzing the integral coupling of the fan by using an analysis program through a fan coupling analysis module.
S106, diagnosing the fan fault by using a diagnosis circuit through a fan fault diagnosis module; and carrying out alarm notification by using an alarm through an abnormal alarm module according to the acquired abnormal data.
And S107, storing the acquired marine hydrological information, the wind speed data, the fan monitoring video data, the parameter optimization, the analysis result, the fault diagnosis result and the early warning information by using a memory through a data storage module.
And S108, displaying the acquired marine hydrological information, the wind speed data, the fan monitoring video data, the parameter optimization, the analysis result, the fault diagnosis result and the real-time data of the early warning information by using a display through a display module.
As shown in fig. 2, the anti-erosion protection structure for the offshore wind turbine foundation provided by the embodiment of the present invention includes: the system comprises a marine hydrological information acquisition module 1, an impact force acquisition module 2, a marine wind speed acquisition module 3, a fan video acquisition module 4, a main control module 5, a fan parameter optimization module 6, a fan coupling analysis module 7, a fan fault diagnosis module 8, an abnormal alarm module 9, a data storage module 10 and a display module 11.
The marine hydrological information acquisition module 1 is connected with the main control module 5 and is used for acquiring real-time data of marine hydrological information through hydrological monitoring equipment;
the impact force acquisition module 2 is connected with the main control module 5 and is used for acquiring the force data of the seawater impact fan through the impact force sensor;
the offshore wind speed acquisition module 3 is connected with the main control module 5 and is used for acquiring real-time data of offshore wind speed through a wind speed sensor;
the fan video acquisition module 4 is connected with the main control module 5 and is used for acquiring monitoring video data of the offshore fan through a camera;
the main control module 5 is connected with the offshore hydrological information acquisition module 1, the impact force acquisition module 2, the offshore wind speed acquisition module 3, the fan video acquisition module 4, the fan parameter optimization module 6, the fan coupling analysis module 7, the fan fault diagnosis module 8, the abnormal alarm module 9, the data storage module 10 and the display module 11, and is used for controlling the normal work of each module of the offshore fan foundation anti-scouring protection structure through a main control computer;
the fan parameter optimization module 6 is connected with the main control module 5 and used for optimizing fan parameters through an optimization program;
the fan coupling analysis module 7 is connected with the main control module 5 and used for analyzing the integral coupling of the fan through an analysis program;
the fan fault diagnosis module 8 is connected with the main control module 5 and is used for diagnosing fan faults through a diagnosis circuit;
the abnormal alarm module 9 is connected with the main control module 5 and used for carrying out alarm notification according to the acquired abnormal data through an alarm;
the data storage module 10 is connected with the main control module 5 and used for storing the collected marine hydrological information, wind speed data, fan monitoring video data, parameter optimization, analysis results, fault diagnosis results and early warning information through a memory;
and the display module 11 is connected with the main control module 5 and used for displaying the acquired marine hydrological information, the wind speed data, the fan monitoring video data, the parameter optimization, the analysis result, the fault diagnosis result and the real-time data of the early warning information through a display.
The invention is further described with reference to specific examples.
Example 1
The construction method of the anti-scour protection structure for the offshore wind turbine foundation provided by the embodiment of the invention is shown in fig. 1, and as a preferred embodiment, as shown in fig. 3, the method for optimizing the wind turbine parameters through an optimization program provided by the embodiment of the invention comprises the following steps:
s201, setting basic parameters of the motor through an optimization program, wherein the basic parameters comprise rated output power, terminal voltage, power factor, rotating speed, pole pair number, operating temperature, average air gap length of the inner diameter of the stator, pole pitch of the inner diameter of the stator, average air gap length of the outer diameter of the rotor and pole pitch of the outer diameter of the rotor.
S202, setting armature winding parameters including turns, slot poles, slot phases and slot pitches; determining the magnetic flux of a single slot based on the armature load and the number of conductors connected in series; the cross-sectional area of the conductor and the size of the slot are determined based on the current density of the armature conductor, and the magnetic flux of the monopole is obtained.
S203, calculating magnetic flux density and setting stator core parameters; setting a leakage magnetic coefficient based on the given magnetic flux density of the magnetic poles and the magnetic yokes, and calculating the magnetic flux density of the air gaps and the stator teeth; determining the armature winding structure of the salient pole type offshore wind turbine based on the high-temperature superconducting magnet exciting coil, and designing the end shape and the resistance parameter.
S204, setting parameters of the high-temperature superconducting magnet exciting coil and required magnetomotive force; respectively calculating magnetomotive force values required by an air gap and a stator tooth part based on saturation characteristics of the steel material; based on the magnetomotive force of the rotor salient pole and the magnetic yoke, the magnetomotive force values required under the load and no-load conditions are calculated respectively by setting the armature leakage magnetic force and the diamagnetic force.
S205, setting excitation winding parameters, and calculating excitation current by setting magnetic flux density based on the size and current carrying capacity of the high-temperature superconducting material; and calculating the cross section area and the magnetic pole height of the excitation winding based on the magnetomotive force value required under the load condition.
S206, calculating a magnetomotive force value required by the magnetic pole based on the saturation characteristics of the steel material; calculating armature magnetic leakage and diamagnetic potential under a load condition; and obtaining a magnetomotive force equation under the load condition by calculating the armature magnetic leakage and the diamagnetic potential.
S207, three-dimensional magnetic field analysis; calculating magnetic field leakage inductance coefficients and operating currents based on magnetic field distribution simulation of different parts of the salient pole type offshore wind turbine of the high-temperature superconducting magnet exciting coil; wherein the operating current depends on losses generated by the flux flow of the high temperature superconducting material.
S208, analyzing the weight, loss and efficiency of the salient pole type offshore wind turbine based on the high-temperature superconducting magnet exciting coil; wherein the weight is calculated based on parameters of all constituent elements; losses include iron losses, armature resistance losses, stray losses, mechanical losses, fan losses for air cooling, refrigeration losses for cryogenic cooling.
According to the embodiment of the invention, the magnetomotive force equation under the load condition is obtained by calculating the magnetic leakage and the diamagnetic potential of the armature:
Figure BDA0002469921010000111
Figure BDA0002469921010000112
Figure BDA0002469921010000113
wherein the content of the first and second substances,
Figure BDA0002469921010000114
Figure BDA0002469921010000115
Eiis an internal voltage, VtIs terminal voltage, FiTo comprise EiMagnetomotive force of (F)0Magnetomotive force under no load condition, FaTo compensate for the magnetomotive force of the armature reaction, F2Is the magnetomotive force under load, KωIs the armature coefficient, P is the number of pole pairs, RaIs an armatureResistance, α pole pitch, n1Is the number of armature windings in each phase in series, theta is the power factor angle,
Figure BDA0002469921010000116
is EiAnd VtAngle of (I)aIs armature current, XlFor leakage, XqIs the q-axis armature reaction inductance.
The refrigeration loss power P of the low-temperature cooling provided by the embodiment of the inventioncryoThe calculation formula of (2) is as follows:
Figure BDA0002469921010000117
wherein, PchPower dissipated for torque tube flowing through fiberglass reinforced plastic, PrhPower dissipated for flux flow of the high temperature superconducting material; COP is the coefficient of operation of the refrigerator.
Example 2
The construction method of the anti-scour protection structure for the offshore wind turbine foundation provided by the embodiment of the invention is shown in fig. 1, and as a preferred embodiment, as shown in fig. 4, the method for analyzing the integral coupling of the wind turbine through an analysis program provided by the embodiment of the invention comprises the following steps:
s301, establishing an offshore wind turbine coupling motion control equation under the combined action of earthquake, wind and wave loads through an analysis program.
S302, developing a seismic load analysis program based on an offshore wind turbine integral coupling model under the combined action of wind and waves in FASTV8.0 and a structural motion control equation in a, and establishing an integral coupling analysis method under the combined action of earthquake, wind and waves.
And S303, compiling a main program and each calculation program in the FASTV8.0, and compiling a data interface between each program and the seismic load calculation program.
S304, developing a series of sub-function programs of the seismic load calculation program: the system comprises a data transmission program, a data processing program, a seismic motion synthesis program, a seismic motion correction program and a seismic force calculation program.
S305, the earthquake load analysis program is an independent program, and not only can the dynamic reaction analysis of the offshore wind turbine under the condition of still water plus earthquake be independently carried out, but also the structure coupling dynamic reaction analysis under the joint action of earthquake, wind and wave can be carried out by combining with the aeroelasticity analysis program and the hydrodynamic calculation program of the FAST software.
S306, establishing an offshore wind turbine integral structure coupling reaction analysis method under the earthquake working condition based on the development; based on the integral coupling analysis method of the offshore wind turbine, an MTMD numerical model is added, and an MTMD control model of local and integral structures of the offshore wind turbine under the action of earthquake is established.
S307, based on the integral coupling analysis method of the offshore wind turbine in the f, adding a TLCD model, and establishing a TLCD control model of the offshore wind turbine cabin under the earthquake action.
The numerical model of the tower MTMD provided by the embodiment of the invention comprises the following steps:
developing a numerical simulation program of a tower tube MTMD of the fan based on a control system program in FASTV8.0, and establishing a data interface with the numerical simulation program of the tower tube MTMD in a main program and each subprogram program;
the MTMD numerical simulation program of the wind turbine tower barrel comprises the following functional programs: the system comprises a data transmission program, an MTMD parameter setting module and a control load calculation program;
as shown in fig. 5, the TLCD numerical model establishment provided in the embodiment of the present invention mainly includes the following steps:
s401, establishing a coupling motion equation of the TLCD and the offshore wind turbine structure.
S402, developing an offshore wind turbine TLCD control model based on a TLCD coupling motion control equation.
The offshore wind turbine TLCD control model provided by the embodiment of the invention comprises the following functional programs: a data transmission program, a TLCD parameter setting program and a TLCD motion equation solving program.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When used in whole or in part, can be implemented in a computer program product that includes one or more computer instructions. When loaded or executed on a computer, cause the flow or functions according to embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL), or wireless (e.g., infrared, wireless, microwave, etc.)). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A construction method of an anti-scouring protection structure of an offshore wind turbine foundation is characterized by comprising the following steps:
acquiring real-time data of marine hydrological information by using hydrological monitoring equipment through a marine hydrological information acquisition module; collecting the force data of the seawater impact fan by using an impact force sensor through an impact force collecting module;
acquiring real-time data of the offshore wind speed by using a wind speed sensor through an offshore wind speed acquisition module; the method comprises the steps that monitoring video data of an offshore wind turbine are collected through a wind turbine video collection module by using a camera;
controlling the normal work of each module of the offshore wind turbine foundation anti-scouring protection structure by using a main control machine through a main control module;
setting basic parameters of the motor by using an optimization program through a fan parameter optimization module, wherein the basic parameters comprise rated output power, terminal voltage, power factor, rotating speed, pole pair number, operating temperature, average air gap length of the inner diameter of the stator, pole distance of the inner diameter of the stator, average air gap length of the outer diameter of the rotor and pole distance of the outer diameter of the rotor;
setting armature winding parameters including turns, slot poles, slot phases and slot pitches; determining the magnetic flux of a single slot based on the armature load and the number of conductors connected in series; determining the cross section area of the conductor and the size of the slot based on the current density of the armature conductor, and further solving the magnetic flux of the monopole;
step six, calculating magnetic flux density and setting stator core parameters; setting a leakage magnetic coefficient based on the given magnetic flux density of the magnetic poles and the magnetic yokes, and calculating the magnetic flux density of the air gaps and the stator teeth;
determining a salient pole type offshore wind turbine armature winding structure based on the high-temperature superconducting magnet exciting coil, and designing end part shapes and resistance parameters;
step eight, setting parameters of the high-temperature superconducting magnet exciting coil and required magnetomotive force; respectively calculating magnetomotive force values required by an air gap and a stator tooth part based on saturation characteristics of the steel material; based on the magnetomotive force of the rotor salient pole and the magnetic yoke, respectively calculating the magnetomotive force values required under the load and no-load conditions by setting the armature magnetic leakage and the diamagnetic force;
step nine, setting excitation winding parameters, and calculating excitation current by setting magnetic flux density based on the size and current carrying capacity of the high-temperature superconducting material; calculating the cross-sectional area and the magnetic pole height of the excitation winding based on the magnetomotive force value required under the load condition;
step ten, calculating the magnetomotive force value required by the magnetic pole based on the saturation characteristic of the steel material; calculating armature magnetic leakage and diamagnetic potential under a load condition; obtaining a magnetomotive force equation under a load condition by calculating the magnetic leakage and the diamagnetic potential of the armature;
step eleven, analyzing a three-dimensional magnetic field; calculating magnetic field leakage inductance coefficients and operating currents based on magnetic field distribution simulation of different parts of the salient pole type offshore wind turbine of the high-temperature superconducting magnet exciting coil; wherein the operation current depends on the loss generated by the flux flow of the high-temperature superconducting material;
analyzing the weight, loss and efficiency of the salient pole type offshore wind turbine based on the high-temperature superconducting magnet exciting coil, and optimizing the parameters of the wind turbine; wherein the weight is calculated based on parameters of all constituent elements; the loss comprises iron loss, armature resistance loss, stray loss, mechanical loss, air cooling fan loss and low-temperature cooling loss;
analyzing the integral coupling of the fan by using an analysis program through a fan coupling analysis module; the fan fault diagnosis module diagnoses the fan fault by using the diagnosis circuit; performing alarm notification by using an alarm according to the acquired abnormal data through an abnormal alarm module;
fourteen, storing the collected marine hydrological information, wind speed data, fan monitoring video data, parameter optimization, analysis results, fault diagnosis results and early warning information by using a memory through a data storage module;
and fifteen, displaying the acquired marine hydrological information, the wind speed data, the fan monitoring video data, the parameter optimization, the analysis result, the fault diagnosis result and the real-time data of the early warning information by using a display through a display module.
2. The construction method of an offshore wind turbine foundation anti-scour protection structure according to claim 1, wherein in the tenth step, the magnetomotive force equation under the load condition is obtained by calculating armature leakage and diamagnetic potential:
Figure FDA0002469917000000031
Figure FDA0002469917000000032
Figure FDA0002469917000000033
wherein the content of the first and second substances,
Figure FDA0002469917000000034
Figure FDA0002469917000000035
Eiis an internal voltage, VtIs terminal voltage, FiTo comprise EiMagnetomotive force of (F)0Magnetomotive force under no load condition, FaTo compensate for the magnetomotive force of the armature reaction, F2Is the magnetomotive force under load, KωIs the armature coefficient, P is the number of pole pairs, RaFor armature resistance, α for pole pitch, n1Is the number of armature windings in each phase in series, theta is the power factor angle,
Figure FDA0002469917000000037
is EiAnd VtAngle of (I)aIs armature current, XlFor leakage, XqIs the q-axis armature reaction inductance.
3. The method according to claim 1, wherein in the twelfth step, the cryogenic cooling has a refrigeration loss power PcryoThe calculation formula of (2) is as follows:
Figure FDA0002469917000000036
wherein, PchPower dissipated for torque tube flowing through fiberglass reinforced plastic, PrhPower dissipated for flux flow of the high temperature superconducting material; preparation of COPAnd (4) running coefficient of the cooler.
4. The construction method of the offshore wind turbine foundation anti-scouring protection structure as claimed in claim 1, wherein in a thirteenth step, the analysis method of the wind turbine coupling analysis module is as follows:
(1) establishing an offshore wind turbine coupling motion control equation under the combined action of earthquake, wind and wave loads through an analysis program;
(2) developing a seismic load analysis program based on an offshore wind turbine integral coupling model under the combined action of wind and waves in FASTV8.0 and a structural motion control equation in a, and establishing an integral coupling analysis method under the combined action of earthquake, wind and waves;
(3) compiling a main program and each calculation program in FASTV8.0, and compiling data interfaces of each program and a seismic load calculation program;
(4) developing a series of sub-functional programs of the seismic load calculation program: a data transmission program, a data processing program, a seismic motion synthesis program, a seismic motion correction program and a seismic force calculation program;
(5) establishing an offshore wind turbine integral structure coupling reaction analysis method under the earthquake working condition based on the development;
(6) adding an MTMD numerical model based on an offshore wind turbine integral coupling analysis method, and establishing an MTMD control model of local and integral structures of the offshore wind turbine under the action of earthquake;
(7) and (f) adding a TLCD numerical model based on the offshore wind turbine integral coupling analysis method in f, and establishing a TLCD control model of the offshore wind turbine cabin under the earthquake action.
5. The construction method of an anti-scour protection structure for the offshore wind turbine foundation according to claim 4, wherein in the step (2), the earthquake load analysis program is an independent program, and the analysis of the dynamic response of the offshore wind turbine under the condition of still water plus earthquake is independently carried out, and the analysis of the structural coupling dynamic response under the combined action of earthquake, wind and wave is carried out by combining with a aeroelastic analysis program and a hydrodynamic calculation program of FAST software.
6. The construction method of the offshore wind turbine foundation anti-scouring protection structure as claimed in claim 4, wherein in the step (6), the numerical model of the tower MTMD comprises the following steps:
developing a fan tower tube MTMD numerical simulation program based on a control system program in FASTV 8.0; establishing a data interface with a tower barrel MTMD numerical simulation program in a main program and each subprogram program;
the MTMD numerical simulation program of the wind turbine tower barrel comprises the following functional programs: data transmission program, MTMD parameter setting module, and control load calculation program.
7. The construction method of the offshore wind turbine foundation anti-scouring protection structure according to claim 4, wherein in the step (7), the TLCD numerical model establishment mainly comprises the following steps:
establishing a coupling motion equation of the TLCD and the offshore wind turbine structure;
developing an offshore wind turbine TLCD control model based on a TLCD coupling motion control equation, wherein the TLCD control model comprises the following functional programs: a data transmission program, a TLCD parameter setting program and a TLCD motion equation solving program.
8. An offshore wind turbine foundation anti-erosion protection structure applying the construction method of the offshore wind turbine foundation anti-erosion protection structure according to any one of claims 1 to 7, wherein the offshore wind turbine foundation anti-erosion protection structure comprises:
the marine hydrological information acquisition module is connected with the main control module and is used for acquiring real-time data of marine hydrological information through the hydrological monitoring equipment;
the impact force acquisition module is connected with the main control module and used for acquiring the force data of the seawater impact fan through the impact force sensor;
the offshore wind speed acquisition module is connected with the main control module and used for acquiring real-time data of offshore wind speed through the wind speed sensor;
the fan video acquisition module is connected with the main control module and used for acquiring monitoring video data of the offshore fan through the camera;
the main control module is connected with the offshore hydrological information acquisition module, the impact force acquisition module, the offshore wind speed acquisition module, the fan video acquisition module, the fan parameter optimization module, the fan coupling analysis module, the fan fault diagnosis module, the abnormal alarm module, the data storage module and the display module and is used for controlling the normal work of each module of the offshore fan foundation anti-scouring protection structure through the main control machine;
the fan parameter optimization module is connected with the main control module and used for optimizing fan parameters through an optimization program;
the fan coupling analysis module is connected with the main control module and used for analyzing the integral coupling of the fan through an analysis program;
the fan fault diagnosis module is connected with the main control module and used for diagnosing fan faults through the diagnosis circuit;
the abnormity alarm module is connected with the main control module and is used for carrying out alarm notification according to the acquired abnormal data through the alarm;
the data storage module is connected with the main control module and used for storing the collected marine hydrological information, wind speed data, fan monitoring video data, parameter optimization, analysis results, fault diagnosis results and early warning information through a memory;
and the display module is connected with the main control module and used for displaying the acquired marine hydrological information, the wind speed data, the fan monitoring video data, the parameter optimization, the analysis result, the fault diagnosis result and the real-time data of the early warning information through a display.
9. A computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface for implementing a method of constructing an offshore wind turbine foundation anti-scour protection structure as claimed in any one of claims 1 to 7 when executed on an electronic device.
10. A computer-readable storage medium storing instructions which, when executed on a computer, cause the computer to perform the method of constructing an offshore wind turbine foundation anti-scour protection structure according to any one of claims 1 to 7.
CN202010345166.2A 2020-04-27 2020-04-27 Offshore wind turbine foundation anti-scouring protection structure and construction method thereof Pending CN111625928A (en)

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CN106208549A (en) * 2016-07-06 2016-12-07 河南理工大学 Salient pole type offshore wind turbine parameter optimization method based on high-temperature superconductor magnet exciting coil
CN108256210A (en) * 2018-01-16 2018-07-06 浙江科技学院 A kind of offshore wind turbine entirety coupling analytical method under geological process

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Publication number Priority date Publication date Assignee Title
CN106208549A (en) * 2016-07-06 2016-12-07 河南理工大学 Salient pole type offshore wind turbine parameter optimization method based on high-temperature superconductor magnet exciting coil
CN108256210A (en) * 2018-01-16 2018-07-06 浙江科技学院 A kind of offshore wind turbine entirety coupling analytical method under geological process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112685852A (en) * 2020-12-22 2021-04-20 中国船舶重工集团公司第七0三研究所 Axial flow compressor load customized pneumatic optimization method capable of keeping continuity of through-flow structure

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