Pool test method for simulating installation operation of tension leg floating fan

Abstract

The invention discloses a pool test method for simulating the installation operation of a tension leg floating fan. The pool test method for simulating the installation operation of the tension leg floating fan can be applied to the basic design stage and the detailed design stage of the floating fan. A current tension leg floating fan installation operation simulation test method generally has the limitations of inaccurate adjustment, uncontrollable response, difficulty in reproducing an actual nonlinear installation process and the like, and when a time-varying effect and a dynamic posture adjusting behavior in a tension applying process are not considered, the time-varying effect is not accurate, and the dynamic posture adjusting behavior is not accurate. Continuous and adjustable tension is applied to the tension leg mounting cable through the motor driving system, the floating state of the platform is actively adjusted and continuously adjusted according to the posture change condition of the floating body in the mounting process simulation, the operation process reproduction under multiple working conditions is realized, and the device is coupled with a load simulation device and an environment simulation device. The system can comprehensively reflect mechanical response and operation behaviors under complex boundary conditions in actual engineering.

Description

Technical Field

[0001] This invention belongs to the field of marine oil engineering technology, and in particular relates to a water tank test method for simulating the installation operation of a tension leg floating wind turbine. Background Technology

[0002] Tension leg floating wind turbines utilize highly pre-tensioned vertical mooring lines to balance the weight and buoyancy of the floating body, enabling the system to maintain good anti-overturning capability and excellent anti-sway performance even under multiple loads such as wind, waves, and currents. However, its installation involves multiple complex steps, including launching the floating body into the water, initial mooring line connection, pre-tensioning application, and dynamic attitude adjustment. The high degree of coupling between subsystems and the narrow operating window mean that errors in any one step can lead to overall system instability, posing significant engineering risks.

[0003] Currently, systematic research on the installation phase of tension leg floating wind turbines is significantly lagging behind. Traditional model tests lack accurate simulation of the installation process, especially the tension loading and attitude change process, resulting in a lack of experimental support and methodological basis for the evaluation of the mechanical response and operating window during the installation phase. The current installation process usually adopts quasi-static analysis at different drafts, ignoring the dynamic response of the floating body during the installation process.

[0004] In related studies, a few attempts have been made to approximate mooring tension using spring systems or counterweight adjustment methods. However, these methods have limitations such as inaccurate adjustment, uncontrollable response, and difficulty in reproducing the actual nonlinear installation process. They also fail to consider the time-varying effects and dynamic attitude adjustment behavior during the tension application process.

[0005] Therefore, there is an urgent need to design a water tank test method to simulate the installation operation of tension leg floating wind turbines and solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a water tank test method for simulating the installation operation of a tension leg floating wind turbine. This method has the advantages of applying continuously adjustable tension to the tension leg through a motor drive system, and actively adjusting the platform level according to the changes in the floating body's attitude during the installation simulation. This allows for the reproduction of the operation process under multiple working conditions and solves the problem in the background technology that traditional model tests lack accurate simulation of the installation process, especially the tension loading and attitude change process.

[0007] To achieve the above objectives, the specific technical solution of the water tank test method for simulating the installation operation of a tension leg floating wind turbine of the present invention is as follows: A water tank test method for simulating the installation operation of a tension leg floating wind turbine is proposed, which constructs a comprehensive test platform consisting of a tension leg platform, a model tower, a pneumatic load simulation device, an electric loading device, an attitude adjustment system, and mooring components. The method mainly includes the following steps: S1. Taking into account geometric dimensions, time scale and mass distribution, the scaling ratio is strictly determined according to the Froude similarity criterion to ensure that the motion response frequency and mode shape remain consistent. S2. Manufacture a high-precision test model and adjust the internal counterweight system of the platform model to make the model's center of gravity and radius of inertia consistent with the theoretical design values; S3. Adjust the wall thickness and diameter of the tower model tube so that the first and second natural frequencies of the tower are approximately the same as those of the prototype, and install force sensors and acceleration sensors at the top and bottom of the tower. S4. The tension leg system uses high-strength steel wire rope, combined with a multi-stage spring series structure to achieve equivalent stiffness, and uses lead wire winding method to accurately simulate the wet weight of the tension leg. S5. Connect a single force sensor in series at the upper end of each tension leg, and combine it with the platform's six-degree-of-freedom motion measurement system to sense tension changes and platform response in real time. S6. Establish a tension leg floating fan installation simulation test platform based on electric loading and active attitude adjustment system according to platform posture. Each tension leg is equipped with an independent servo motor at the connection between the platform and each tension leg. The winch has two control modes: constant speed and constant length, which can be flexibly switched to adapt to the needs of different test stages and platform states, covering the entire process of tension loading, attitude adjustment, and dynamic response testing.

[0008] Furthermore, in S6, the test platform uses a non-contact six-degree-of-freedom motion monitoring system and a single force sensor to achieve dual-dimensional data feedback of tension and attitude. It constructs an artificial closed-loop collaborative control mechanism consisting of four core steps: "attitude judgment - strategy selection - action execution - result feedback". This mechanism can dynamically respond to changes in platform attitude under the background of wind, waves and current disturbances, and achieve continuous and stable attitude adjustment capabilities.

[0009] Furthermore, it is equipped with a high-precision programmable wave generator and current generation system and integrated control to achieve the ability to reproduce multi-source disturbances in real environments.

[0010] Furthermore, a multi-channel aerodynamic load replicator system is established at the top of the tower model. This system consists of six sets of high-speed controllable rotors and their power control modules, which can realize the combined application of loads in different spatial directions to ensure that the stress state between the top of the tower and the floating body is close to the actual working condition.

[0011] Furthermore, the system acquires platform motion information in real time through a non-contact six-degree-of-freedom motion monitoring system; at the same time, the single-component force sensor on each tension leg records tension data synchronously, constructing a panoramic view of the platform's current mechanical state.

[0012] Furthermore, the platform installation operation is simulated by tightening the steel wire. When the platform deviates from the target state during the tightening process, the cable that needs adjustment is selected, and "constant speed mode" or "constant length mode" is chosen for adjustment. After the adjustment is completed, the system acquires new tension and attitude data again to determine the deviation. If the target attitude state is still not reached, the next round of fine adjustment cycle is entered.

[0013] Furthermore, attitude adjustment and tension loading are not performed independently, but rather continuously operate in environments with wind, waves, and current disturbances, and are coordinated and controlled in a real-time coupled and dynamic feedback manner. The platform's attitude changes interact with the forces on the tension cables, giving the system dynamic adaptability under strong disturbances, enabling the platform to have stable, continuous, and controllable attitude adjustment capabilities.

[0014] Furthermore, when the platform's heave motion approaches the set attitude threshold, the tightening speed of all cable motors is reduced. Combined with the tension distribution information fed back by the single force sensor on the tension leg, it is determined whether the platform has achieved force balance in all directions and attitude level stability.

[0015] Furthermore, when both judgment conditions are met, the platform can be considered to have reached the set installation target state, completed the entire process of tension loading and attitude adjustment, and realized the complete simulation and verification of the installation operation of the tension leg floating wind power platform.

[0016] The water tank test method for simulating the installation of tension leg floating wind turbines of the present invention has the following advantages: (1) The simulation and testing method proposed in this invention fills the gap in the physical testing of tension leg wind turbines, provides more accurate performance data and design optimization support, and can visualize and optimize and verify related installation strategies, tension loading process, attitude adjustment mechanism, etc., providing an important theoretical basis and experimental basis for the formulation of installation strategies, risk assessment and technology selection in actual engineering.

[0017] (2) Through the simulation and testing methods proposed in this invention, the installation process of tension leg floating wind turbines will be simulated more accurately, reliably and controllably, which has good engineering application value and promotion potential, and promotes the engineering implementation of tension leg floating wind turbine technology and the high-quality development of the deep-sea wind power industry. Attached Figure Description

[0018] Figure 1 This is a flowchart of the water tank test method for simulating the installation operation of a tension leg floating fan according to the present invention; Figure 2 This is a schematic diagram of the installation test model of the tension leg floating wind turbine of the present invention; Figure 3 This is a schematic diagram of the mooring system model of the present invention.

[0019] Explanation of markings in the diagram: 1. Tower top six-component force sensor; 2. Tower top accelerometer; 3. Tower; 4. Non-contact six-degree-of-freedom motion monitoring system; 5. Tower bottom accelerometer; 6. Tension leg; 7. Servo motor; 8. Pneumatic load reproducer; 9. Tower bottom six-component force sensor; 10. Floating platform; 11. Lower float attachment point; 12. Wave; 13. Motor control system; 14. Cable guide hole; 15. Single-component force sensor; 16. Spring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0022] The following is a reference to the appendix. Figure 1 To be continued Figure 3 The present invention describes a water tank test method for simulating the installation operation of a tension leg floating wind turbine.

[0023] like Figure 1 As shown, the water tank test method for simulating the installation of a tension leg floating wind turbine in this invention mainly includes the following steps: S1. The model design strictly follows the Froude similarity criterion for scaling down, with the scaling ratio denoted as... : Where L is the model size, the subscript p represents the prototype value, and the subscript m represents the model value.

[0024] To avoid distortion of the marine environment due to small-scale effects, the value of λ is generally taken in the range of 40~80; in the pool test subsystem, it is necessary to ensure that the inertial force and gravity are similar to the prototype, and the Froude number is used to characterize Fr: Where U is the characteristic flow velocity, g is the gravitational acceleration, and L is the characteristic length of the model. Scaled-down models need to ensure similar Fr numbers, i.e. All other parameters are characterized using the Fr similarity criterion. The scaling ratio should comprehensively consider geometric dimensions, time scale, and mass distribution to ensure that the motion response frequency and mode shape remain consistent.

[0025] Because plexiglass has moderate density, high mechanical strength, and is easy to process, it is used as the main structural material for the model in this embodiment. Lightweight wood can be used for key structural parts to ensure a reasonable overall weight distribution, while thin steel plates are used to reinforce local stress areas.

[0026] Furthermore, the model surface is treated with an epoxy resin coating to increase corrosion and wear resistance, making it suitable for long-term water tank testing environments. CNC machining and laser cutting technologies are incorporated into the manufacturing process to ensure dimensional tolerances are controlled within ±1 mm, improving the accuracy and consistency of structural assembly. Structural connections utilize a combination of bolts and adhesive bonding, balancing disassembly, watertightness, and structural rigidity requirements to prevent loosening and water ingress from affecting test results.

[0027] S2. The internal counterweight system of this platform model uses high-density lead blocks of various sizes to facilitate fine-tuning of the center of gravity and inertia during the experiment. A high-precision laser displacement sensor is used to monitor the attitude of the platform model on the inertia frame, and the lead blocks are adjusted to the theoretical design values ​​by calculating the position of the center of gravity and the radius of inertia.

[0028] By repeatedly testing and fine-tuning the counterweight, the errors in the platform model's center of gravity and radius of inertia were controlled within 3%, ensuring high repeatability and validity of the test data.

[0029] The design of S3 and tower 3 is based on static and dynamic analysis using ABQUS finite element software, with a focus on analyzing bending stiffness, torsional stiffness, and modal frequencies.

[0030] The wall thickness and diameter of the aluminum alloy tube were continuously adjusted, and the cross-sectional parameters were optimized so that the first and second natural frequencies of the tower 3 differed from the prototype by no more than 3%. The top of the tower 3 was connected to the pneumatic load reproducer 8 via a flange and a series connection of the tower top six-component force sensor 1. The bottom of the tower 3 was connected to the tower bottom six-component force sensor via a sleeve of matching size, and then fixed on the platform.

[0031] The six-component force sensor 1 at the top of the tower and the six-component force sensor 9 at the bottom of the tower are used to monitor the six degrees of freedom loads at the top and bottom of the tower, respectively. A three-dimensional acceleration sensor, namely the acceleration sensor 2 at the top of the tower and the acceleration sensor 5 at the bottom of the tower, is installed on the platform and the aerodynamic load reproducer 8 to monitor acceleration in the X, Y, and Z directions. The modular connection structure ensures rapid replacement and maintenance of model components during experiments.

[0032] S4. The tension leg system uses high-strength steel wire rope, combined with a multi-stage spring 16 series structure to achieve equivalent stiffness. In this embodiment, the spring 16 material is selected from a high-elasticity alloy, which has good linear elasticity and fatigue life. The stiffness parameters of the spring 16 are obtained through laboratory unit testing.

[0033] The connection between spring 16 and the wire rope uses a special clamp to ensure a secure connection. The overall stiffness is verified through finite element modeling and on-site tensile testing to ensure that the system's response meets design requirements throughout the entire operating range.

[0034] S5. To accurately simulate the wet weight of the tension leg 6, this embodiment uses a lead wire winding method to uniformly cover the surface of the steel wire, ensuring that the underwater force characteristics are consistent with the prototype. The weight and distribution of the lead wire were calibrated through multiple underwater weighings and mechanical tests, with the error controlled within ±2%.

[0035] In this embodiment, the length of the tension legs and the combination of counterweights were theoretically calculated and experimentally verified to ensure the stable and reliable stress state of the tension legs 6 under wave 12 and flow load. Then, a single-component force sensor 15 is arranged at the upper end of each tension leg 6 to provide real-time feedback on the tension of the tension leg 6. To reduce the additional resistance caused by water flow, the surface of the lead wire is treated with a smooth coating to reduce eddy currents and vibration interference. Meanwhile, the lower float attachment point 11 is located above the tension legs 6.

[0036] S6. In the tension leg floating wind turbine model test, after the design and fabrication of each component (including floating platform 10, mooring system, mooring cable, etc.) are completed, system integration and dynamic performance verification tests are required.

[0037] In this embodiment, firstly, under still water conditions, the center of gravity and radius of inertia of the entire system can be obtained based on tilting tests and pitch and roll attenuation tests; The second step is to install tension leg 6 in cable guide hole 14, lower the false bottom to the specified water depth, conduct an inclination test, and measure the center of gravity of the model; The third step involves performing mooring attenuation motions in still water, including swaying, rolling, heaving, pitching, and bowing. The attenuation period and damping coefficient of the model's six degrees of freedom can be calculated based on the attenuation curves. The fourth step is to conduct a hydrostatic displacement (stiffness test) to measure the horizontal stiffness curve of the model mooring system, thereby verifying the performance of the tension leg 6. The hydrostatic stiffness test includes the X-direction, Y-direction and bow-roll direction. The fifth step is to conduct joint debugging of each subsystem. First, verify the function of the electric winch pulling the mooring cable synchronously; then calibrate the zero point of each sensor and set the same sampling frequency.

[0038] In this embodiment, all sensors have a sampling frequency of 100Hz.

[0039] S7. In order to reproduce the complex marine environment that tension leg floating wind turbines may encounter during installation operations in deep sea, this embodiment integrates two typical environmental load simulation systems, wave 12 and ocean current, and has the ability to reproduce multi-source disturbances in real environment.

[0040] In terms of wave 12 simulation, the test platform is equipped with a high-precision programmable wave generator, which can generate regular waves, irregular waves, and three-dimensional directional wave systems.

[0041] The irregular wave test uses JONSWAP spectrum input and generates target wave conditions through frequency superposition to meet the actual needs of multiple wave directions and multiple periods in the deep sea.

[0042] In terms of ocean current simulation, a flow-generating system is arranged in the test pool to simulate the deep-water flow profile with vertical velocity gradient changes, reproduce the velocity disturbance with depth during the installation of the floating body, and increase the realism of the force changes of the floating body and tension leg 6.

[0043] S8. In order to accurately reproduce the wind load on the wind turbine during the installation operation, this embodiment integrates a multi-channel aerodynamic load reproducer system.

[0044] The system consists of six sets of high-speed controllable rotors and their power control modules. It can apply aerodynamic forces of different directions and magnitudes according to input commands, effectively simulating the load distribution of wind turbines such as thrust, yaw moment, and pitch moment.

[0045] By adjusting the rotor speed, attitude, and combination mode, the system can flexibly switch between steady-state and dynamic conditions. The simulator system can independently adjust the power of each channel to achieve the combined application of loads in different spatial directions, ensuring that the stress state between the top of the tower 3 and the floating body is close to the actual working condition.

[0046] S9. Each tension leg 6 is connected to an independent servo motor 7. The servo motor 7 has two control modes: constant speed and constant length, which can be flexibly switched to adapt to the needs of different test stages and platform conditions.

[0047] The motor drive system supports high-precision tension adjustment, and the motor drive system is connected to the motor control system 13. Closed-loop control is achieved through real-time feedback data from the force sensor at the upper end of the tension leg 6, ensuring that the applied tension is highly consistent with the design target.

[0048] The system supports independent control of a single tension leg 6, which facilitates fine-tuning for different tension requirements of tension legs 6. At the same time, the servo motor 7 supports group control and synchronous control of nine tension legs 6, realizing coordinated tension distribution under complex working conditions to ensure platform stability and installation safety.

[0049] The tension error between the tension legs 6 is strictly controlled by nine force sensors to ensure that the error range is within ±50 grams, which meets the requirements of high-precision physical model testing.

[0050] S10. In order to achieve precise control of the attitude of the tension leg floating platform 10, this experimental system constructs an artificial closed-loop collaborative control mechanism based on dual-dimensional data feedback of tension and attitude.

[0051] The control logic consists of four core steps: attitude judgment, strategy selection, action execution, and result feedback. It can dynamically respond to platform attitude changes under wind, wave, and current disturbances, achieving continuous and stable attitude adjustment capabilities. The specific process is as follows: First, the system uses a non-contact six-degree-of-freedom motion monitoring system 4 deployed at the top and center of the platform tower to acquire information on the platform's six degrees of freedom (tilt, roll, yaw, heave, sway, and pitch) in real time. At the same time, the single-component force sensor 15 on each tension leg 6 records the tension data synchronously, constructing a panoramic view of the platform's current mechanical state.

[0052] Simultaneously tightening the tension leg 6 causes the platform to transition from a floating state to a working state. If the platform deviates from the initially set horizontal state during the tightening process (such as significant tilting or offset), it is necessary to comprehensively judge the direction and angle of the platform's offset and the load differences on each tension leg 6 based on sensor data, and formulate a control strategy accordingly: select the cable that needs to be adjusted (single, multiple, or grouped), and select "constant speed mode" or "constant length mode" for adjustment.

[0053] Subsequently, the system executes adjustment actions—the relevant cable motors complete the rope winding or unwinding operations according to the set strategy, and the system acquires new tension and attitude data again to determine deviations. If the platform still has not reached the target attitude state, it enters the next round of fine adjustment cycle.

[0054] S11. Attitude adjustment and tension loading are not performed independently, but operate continuously in the environment of wind, waves and current disturbances, and are coordinated and controlled in a real-time coupled and dynamic feedback manner.

[0055] The platform's attitude changes interact with the tension cable, giving the system dynamic adaptability under strong disturbances and enabling the platform to have stable, continuous, and controllable attitude adjustment capabilities.

[0056] S12. As the platform's attitude gradually approaches the target installation attitude, the control system will determine whether the platform is approaching the end stage of the installation operation based on the heave change values ​​provided by the six-degree-of-freedom motion monitoring system.

[0057] Once the platform's heave motion approaches the set attitude threshold, the tightening speed of all cable motors should be reduced to avoid reverse attitude deviation due to over-adjustment. Simultaneously, by combining the tension distribution information fed back by the single-component force sensors 15 deployed on the nine tension legs 6, it can be determined whether the platform has achieved force balance in all directions and horizontal attitude stability.

[0058] When both judgment conditions are met, the platform can be considered to have reached the set installation target state, completed the entire process of tension loading and attitude adjustment, and realized the complete simulation and verification of the installation operation of the tension leg floating wind power platform.

[0059] S13. All data will be stored synchronously and visualized to form a complete record of the test process, which will facilitate subsequent error analysis, control optimization and operating condition backtracking.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A water tank test method for simulating the installation operation of a tension leg floating wind turbine, comprising a comprehensive test platform consisting of a tension leg platform, a model tower, a pneumatic load simulation device, an electric loading device, an attitude adjustment system, and mooring components, characterized in that... The main steps include: S1. Taking into account geometric dimensions, time scale and mass distribution, the scaling ratio is strictly determined according to the Froude similarity criterion to ensure that the motion response frequency and mode shape remain consistent. S2. Manufacture a high-precision test model and adjust the internal counterweight system of the platform model to make the model's center of gravity and radius of inertia consistent with the theoretical design values; S3. Adjust the wall thickness and diameter of the tower model tube so that the first and second natural frequencies of the tower are approximately the same as those of the prototype, and install force sensors and acceleration sensors at the top and bottom of the tower. S4. The tension leg system uses high-strength steel wire rope, combined with a multi-stage spring series structure to achieve equivalent stiffness, and uses lead wire winding method to accurately simulate the wet weight of the tension leg. S5. Connect a single force sensor in series at the upper end of each tension leg, and combine it with the platform's six-degree-of-freedom motion measurement system to sense tension changes and platform response in real time. S6. Establish a tension leg floating fan installation simulation test platform based on electric loading and active attitude adjustment system according to platform posture. Each tension leg is equipped with an independent servo motor at the connection between the platform and each tension leg. The winch has two control modes: constant speed and constant length, which can be flexibly switched to adapt to the needs of different test stages and platform states, covering the entire process of tension loading, attitude adjustment, and dynamic response testing.

2. The water tank test method for simulating the installation operation of a tension leg floating wind turbine according to claim 1, characterized in that, In the S6, the test platform uses a non-contact six-degree-of-freedom motion monitoring system and a single force sensor to achieve dual-dimensional data feedback of tension and attitude. It constructs an artificial closed-loop collaborative control mechanism consisting of four core steps: "attitude judgment - strategy selection - action execution - result feedback". This mechanism can dynamically respond to changes in platform attitude under the background of wind, waves and current disturbances, and achieve continuous and stable attitude adjustment capabilities.

3. The water tank test method for simulating the installation operation of a tension leg floating wind turbine according to claim 1, characterized in that, Equipped with a high-precision programmable wave generator and current generation system and integrated control, it can reproduce multi-source disturbances in real environments.

4. The water tank test method for simulating the installation operation of a tension leg floating wind turbine according to claim 1, characterized in that, A multi-channel aerodynamic load replicator system is established at the top of the tower model. This system consists of six sets of high-speed controllable rotors and their power control modules, which can realize the combined application of loads in different spatial directions to ensure that the stress state between the top of the tower and the floating body is close to the actual working condition.

5. The water tank test method for simulating the installation operation of a tension leg floating wind turbine according to claim 1, characterized in that, The system acquires platform motion information in real time through a non-contact six-degree-of-freedom motion monitoring system; at the same time, the single force sensor on each tension leg records tension data synchronously, constructing a panoramic view of the platform's current mechanical state.

6. The water tank test method for simulating the installation operation of a tension leg floating wind turbine according to claim 1, characterized in that, The platform installation operation is simulated by tightening the steel wire. If the platform deviates from the target state during the tightening process, the cable that needs adjustment is selected, and "constant speed mode" or "constant length mode" is selected for adjustment. After the adjustment is completed, the system acquires new tension and attitude data again to determine the deviation. If the target attitude state is still not reached, the next round of fine adjustment cycle is entered.

7. The water tank test method for simulating the installation operation of a tension leg floating wind turbine according to claim 6, characterized in that, Attitude adjustment and tension loading are not performed independently, but rather operate continuously in environments with wind, waves, and current disturbances, and are coordinated and controlled in a real-time coupled and dynamic feedback manner. The platform's attitude changes interact with the forces on the tension cables, giving the system dynamic adaptability under strong disturbances, enabling the platform to have stable, continuous, and controllable attitude adjustment capabilities.

8. The water tank test method for simulating the installation operation of a tension leg floating wind turbine according to claim 1, characterized in that, When the platform's heave motion approaches the set attitude threshold, the tightening speed of all cable motors is reduced. Combined with the tension distribution information fed back by the single force sensor on the tension leg, it is determined whether the platform has achieved force balance in all directions and attitude level stability.

9. The water tank test method for simulating the installation operation of a tension leg floating wind turbine according to claim 1, characterized in that, When both judgment conditions are met, the platform can be considered to have reached the set installation target state, completed the entire process of tension loading and attitude adjustment, and realized the complete simulation and verification of the installation operation of the tension leg floating wind power platform.

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