Double-body structure wave energy observation buoy and method suitable for wide-area networking marine ranch cluster
By designing a twin-hull marine observation buoy, optimizing and calculating the optimal geometric parameters, and integrating a marine energy power generation device, the problem of low power generation efficiency of a single-hull structure was solved, enabling stable power supply and diversified observation for a wide-area marine ranching cluster.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-03-27
AI Technical Summary
Existing single-buoy marine observation buoys have low power generation efficiency and limited size, making it difficult to meet the comprehensive and dynamic observation needs of a wide-area marine ranching cluster, and they are also costly.
Design a catamaran structure ocean observation buoy, including an upper body and a lower body. Optimal geometric parameters are determined through design optimization calculations to enhance wave energy power generation efficiency. The buoy integrates ocean energy power generation devices and observation equipment, utilizing wave energy and solar energy for power supply, achieving long-term self-sufficiency.
It improves the efficiency of wave energy generation, enhances ocean observation capabilities, enables stable power supply for ocean buoys in deep-sea conditions, solves the long-term self-powering problem, and reduces costs.
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Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of new energy power generation devices, and in particular to a double-hull structure wave energy observation buoy and method suitable for wide-area networking ocean ranching clusters. BACKGROUND
[0002] With the development of ocean ranching in the direction of scale and cluster, the use of ocean observation buoys to realize the synchronous and continuous monitoring of key environmental factors such as temperature, salinity, pH value, and wind speed in a wide area of the sea has become a key to ensuring the ecological environment safety and intelligent management. At present, ocean buoys mainly use solar energy and energy storage batteries for power supply. However, solar power generation devices have almost no power output in the evening, rainy weather, and non-surface seawater environments. The replacement and maintenance of energy storage batteries are costly, making it extremely difficult to achieve long-term energy supply. Ocean buoys using wave energy generation devices are a practical and feasible way to obtain energy nearby during ocean observation activities and to continuously and long-term supply energy for observation equipment.
[0003] Existing wave energy ocean observation buoys are usually single mooring fixed buoys, and their geometric parameters such as geometry and size are optimized to increase the energy output of the wave energy generation device in the working sea area. However, the single floating body structure of the ocean buoy has limited volume and internal capacity, and during the construction of the actual device, there are problems such as limited installation of wave energy generation devices, limited carrying capacity of ocean exploration equipment, and difficulty in ballast placement and adjustment. In addition, the single floating body structure of the mooring fixed ocean observation buoy has poor motion response during operation, resulting in low power generation efficiency of the wave energy generation device. Moreover, the single floating body structure of the mooring fixed ocean observation buoy has limited coverage and high cost, making it difficult to meet the demand for all-round and dynamic observation of distributed ocean ranching clusters. SUMMARY
[0004] The present application discloses a double-hull structure wave energy observation buoy and method suitable for wide-area networking ocean ranching clusters to solve the problem of low power generation efficiency of the existing fixed mooring single floating body structure wave energy observation buoy, thereby realizing long-term self-energy supply of the ocean observation buoy.
[0005] To achieve the above-mentioned application purposes, one or more embodiments of the present application provide the following technical solutions:
[0006] In a first aspect, a double-hull structure wave energy observation buoy suitable for wide-area networking ocean ranching clusters is disclosed, comprising:
[0007] The upper floating body, the lower floating body, and the connecting mechanism between the two parts are integrated with ocean energy generation devices, ocean observation equipment, and energy management systems in the upper floating body. The lower floating body is connected to the upper floating body by a connecting rope and is completely submerged in water.
[0008] Further, the geometry, size, material, draft, and center of mass of the upper floating body can be freely selected, including but not limited to spherical, cylindrical, conical, and combinations and modifications based on these shapes.
[0009] Further, the ocean energy power generation device includes a wave energy power generation system, a solar power generation system, and other devices that can generate power using ocean energy. The wave energy power generation system can be designed and installed in an internal or external manner, and the photovoltaic panels in the solar power generation system can be installed on the outer surface of the upper floating body, but are not limited thereto. The wave energy power generation system includes but is not limited to an oscillating buoy type and an oscillating water column type power generation device. The ocean observation equipment includes but is not limited to various types of ocean environment sensors, monitoring systems, and communication systems. The ocean environment sensors include but are not limited to temperature, salinity, pH value, pressure, wind speed, and flow rate measuring instruments. The monitoring system includes but is not limited to attitude detection, propulsion control, and image acquisition. The communication system includes but is not limited to satellite communication, mobile network communication, and sonar equipment. The ocean observation equipment includes but is not limited to energy storage batteries and input / output control modules.
[0010] Further, the material of the lower floating body can be freely selected, and the specific geometry, size, and mass are selected according to the optimization design method of the second aspect.
[0011] Further, the connection mechanism includes a connection point mechanism and a connection rope for each of the upper floating body and the lower floating body. The connection rope includes but is not limited to a steel chain and an elastic rope. The number of connection ropes can be one or more.
[0012] Secondly, an optimization design method of a double-hull wave energy observation buoy suitable for a wide-area networking ocean ranching cluster is disclosed, including:
[0013] According to the required geometry, size, draft, center of mass, and total mass of the upper floating body, the total mass of the lower floating body is calculated.
[0014] According to the environmental parameters of the target area and the wave energy spectrum, the time series of incident waves are calculated, and the hydrodynamic coefficients of the upper floating body and the lower floating body are calculated using wave theory. The environmental parameters of the sea state include the significant wave height and the spectral peak period under irregular wave conditions, or the wave height and the period under regular wave conditions.
[0015] The average power output value of the upper floating body in the target area is calculated using the hydrodynamic coefficients and the kinetic equation when the upper floating body is connected to the lower floating body. An optimization algorithm is used to optimize the geometric parameters of the lower floating body, with the maximum average power output of the upper floating body as the evaluation index, to obtain the optimal geometric parameters of the lower floating body when the average power output of the upper floating body is maximum.
[0016] Further, the water power coefficient is used to calculate the average output power value of the target area in the connection of the upper floating body and the lower floating body, specifically:
[0017] According to the kinetic equation of the upper floating body, the water dynamic simulation model is built to determine the physical constraint conditions of the movement, the movement response of each degree of freedom of the upper floating body is calculated when connecting the lower floating body with different geometric parameters such as geometric shape and size, the instantaneous energy gain power corresponding to each degree of freedom of the upper floating body is obtained, and then the average energy gain power of the upper floating body is obtained, the optimization algorithm is used, the average energy gain power of the upper floating body is taken as the objective function, the geometric parameter value of the lower floating body is changed, the objective function value is calculated, and the geometric parameter of the lower floating body with the optimal objective function value is selected as the optimal solution under the condition of the corresponding upper floating body; the optimization algorithm includes but is not limited to particle swarm optimization algorithm and genetic algorithm.
[0018] Further, according to the potential flow theory and the wave theory, the water dynamics software is used to calculate the water power coefficient of the corresponding floating body according to the ocean environment parameters in the target area, the geometric parameters of the upper floating body and the lower floating body; the water dynamics software includes but is not limited to one or more of ANSYS AQWA and WAMIT; the wave theory includes but is not limited to linear wave theory and nonlinear wave theory.
[0019] The beneficial effects of the present application are as follows:
[0020] The present application optimizes and designs a double-body structure wave energy observation buoy suitable for wide-area networking ocean ranching cluster according to the ocean environment parameters and wave energy spectrum of a specific area, selects the geometric parameter of the upper floating body with the maximum average output power value as the lower floating body through global optimization calculation, and can obtain a double-body wave energy buoy with high power generation effect under the given sea conditions and upper floating body parameters. In addition, since the lower floating body can act as a ballast, the upper floating body as the core structure has a larger available space, facilitating the arrangement of different forms of wave energy power generation devices and the carrying of various equipment, improving the utilization efficiency of wave energy and enhancing the ability of diversified ocean observation, enabling the ocean buoy to continuously and stably supply power to the ocean observation equipment in the drifting state and deep sea conditions, and effectively solving the long-term self-power supply problem of the existing ocean observation equipment. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0022] Figure 1is a schematic diagram of the outer shape of an embodiment of the device of the present application;
[0023] Figure 2 is Figure 1 is a schematic diagram of an internal structure of the embodiment shown;
[0024] Figure 3 is a flow chart of the optimization of the geometric parameters of the lower floating body.
[0025] The reference signs are as follows:
[0026] 1, upper floating body; 2, lower floating body; 3, connecting rope; 4, solar panel; 5, oscillating float type wave power generation device; DETAILED DESCRIPTION
[0027] The technical solutions of the present application will be described clearly and completely below in combination with the drawings and embodiments in the present application. Obviously, the following detailed description is exemplary and is intended to further illustrate the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.
[0028] In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0029] The present application provides a catamaran structure wave energy observation buoy suitable for wide-area networking mariculture cluster, wherein an embodiment is as shown in Figure 1 The main technical features are that the upper floating body is in a semi-submersible state in water, the lower floating body is in a completely submerged state, and the upper floating body and the lower floating body are connected by a connecting rope.
[0030] For example, in this embodiment, the upper floating body and the lower floating body both adopt cylindrical structure floaters, and the lower surface center of the upper floating body and the upper surface center of the lower floating body are connected by a steel chain.
[0031] It should be noted that the geometric shape, size and material of the upper floating body and the lower floating body are not limited to Figure 1 the cylindrical floaters shown in the embodiment, the shape of the upper floating body and the lower floating body can be spherical, cylindrical, conical or other basic geometric shapes or combinations and further modifications based on these shapes; the connecting rope is not limited to a steel chain, and the number of the connecting rope can be one or more.
[0032] Figure 2 The structure shown is Figure 1 In a specific embodiment of the interior of the embodiment, the upper floating body integrates marine energy power generation devices, marine observation equipment, energy management systems, etc.
[0033] For example, in this embodiment, the ocean energy power generation device includes a solar panel 4 and an oscillating buoy wave energy power generation device 5, wherein the solar panel 4 is installed on the upper surface of the upper float; the solar panel 4 and the oscillating buoy wave energy power generation device 5 can charge the energy storage battery (not shown) in the energy management system or power the ocean observation equipment (not shown).
[0034] As shown in the flowchart, the present application provides an optimization design method for the lower float of the catamaran structure wave energy observation buoy suitable for the wide-area networking ocean ranching cluster, comprising: Figure 3
[0035] S1, according to the required geometric shape, size, draft, center of mass and total mass of the upper float, the total mass of the lower float is calculated; according to the environmental parameters of the specific sea state and its wave energy spectrum, the time sequence of incident waves is calculated, and the hydrodynamic coefficients of the upper float and the lower float are calculated by using wave theory and with the help of hydrodynamic software.
[0036] For example, in this embodiment, the hydrodynamic analysis software used includes but is not limited to one or more of ANSYS AQWA, WAMIT; the calculation of hydrodynamic coefficients includes but is not limited to wave excitation force, added mass coefficient, additional damping coefficient, static water stiffness coefficient.
[0037] S2, using the hydrodynamic coefficients and the kinetic equation to determine the physical constraint conditions of the motion of the upper float and the lower float, the motion response of each degree of freedom of the upper float when connected to the lower float is calculated, the instantaneous power corresponding to each degree of freedom of the upper float is obtained, and then the average power of the upper float is obtained.
[0038] For example, in this embodiment, the calculation formula of the average power of the upper float is selected as:
[0039]
[0040] Among them, is the average power of the upper float, T is the hydrodynamic simulation time, is the instantaneous power of each degree of freedom motion.
[0041] S3, using an optimization algorithm, taking the maximum value of the average power of the upper float as the evaluation index, optimizing the geometric parameters of the lower float, and obtaining the optimal geometric parameters of the lower float when the average power of the upper float is maximum.
[0042] As a specific embodiment of the present application, the optimization algorithm used includes but is not limited to genetic algorithm and particle swarm algorithm, and the optimization algorithm is used to take the maximum average energy capture power of the upper floating body as an evaluation index to globally optimize the geometric parameters of the lower floating body, so as to obtain the optimal geometric parameters of the lower floating body when the average energy capture power of the upper floating body is maximum.
[0043] It should be noted that the present application uses the average energy capture power of the upper floating body in six degrees of freedom as an evaluation index for the optimization design of the lower floating body, and in the specific implementation of the present application, one or more degrees of freedom of the upper floating body can be selected according to the energy capture direction of the installed wave power generation device, and the average energy capture power of the upper floating body in the selected degree or degrees of freedom is taken as an evaluation index, and the optimal geometric parameters of the lower floating body are selected after optimization.
[0044] S4, in particular, according to the current situation of the sea area, the optimization algorithm is used to change the material, length and other parameters of the connecting rope between the upper floating body and the lower floating body, and the drift state is simulated by means of the hydrodynamic software, and the optimal parameters of the connecting rope are calculated when the average energy capture power of the upper floating body is maximum.
[0045] For example, in this embodiment, after the lower floating body is optimized and selected, the speed and direction of the water flow in a specific sea area can be set in the hydrodynamic software, and the wave conditions in the specific sea area are combined, and the optimization algorithm is used to simulate and calculate the material, length and other parameters of the connecting rope by taking the maximum average energy capture power of the upper floating body, and the optimal parameters of the connecting rope are selected.
[0046] It should be noted that the optimization algorithm used for the material, length and other parameters of the connecting rope is basically the same as that used for the optimization and selection of the lower floating body.
[0047] The above is the preferred embodiment of the present application, and it should be noted that for those skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements are also considered within the protection scope of the present application.
Claims
1. A twin-hull wave energy observation buoy and method suitable for wide-area networked marine ranching clusters, characterized in that, It includes an upper floating body, a lower floating body, and a connecting mechanism between the two parts. The upper floating body integrates an ocean energy power generation device, ocean observation equipment, and an energy management system. The lower floating body is connected to the upper floating body by a connecting rope and is submerged in the water.
2. The wave energy generating buoy with a twin-body structure according to claim 1, characterized in that, The geometry, size, material, draft, and center of mass of the floating body can be freely selected. The geometry includes, but is not limited to, spherical, cylindrical, conical, and combinations and modifications based on these shapes.
3. The wave energy generating buoy with a twin-body structure according to claim 1, characterized in that, The ocean energy power generation device includes wave energy power generation systems, solar energy power generation systems, and other devices that can utilize ocean energy to generate electricity. The wave energy power generation system can be designed and installed in a built-in or external manner, and the solar power generation panel can be installed on, but is not limited to, the outer surface of the floating body. The wave energy power generation system includes, but is not limited to, oscillating float type and oscillating water column type power generation devices. The ocean observation equipment includes, but is not limited to, various ocean environmental sensors, monitoring systems, and communication systems. The ocean environmental sensors include, but are not limited to, temperature, salinity, pH value, pressure, wind speed, and current velocity measuring instruments. The monitoring system includes, but is not limited to, attitude detection, propulsion control, and imaging acquisition. The communication system includes, but is not limited to, satellite communication, mobile network communication, and sonar equipment. The ocean observation equipment includes, but is not limited to, energy storage batteries and input / output control modules.
4. The wave energy generating buoy with a twin-body structure according to claim 1, characterized in that, The material of the lower float can be freely selected, and the specific geometric shape, size, mass, etc. are selected according to the optimization design method in the second aspect below; the connecting mechanism consists of the connection point mechanism of the upper float and the lower float and the connecting rope; the type of the connecting rope includes, but is not limited to, steel chain and elastic rope; the number of the connecting rope can be one or more.
5. A method for optimizing the parameters of the lower body and connecting rope of a wave energy generating buoy based on the twin-body structure described in any one of claims 1-4, characterized in that, include: Calculate the total mass of the lower body based on the required geometry, dimensions, draft, center of mass, and total mass of the upper body; The time series of incident waves is calculated based on the environmental parameters of the sea state in the target area and its wave energy spectrum. The hydrodynamic coefficients of the floating and submerged bodies are calculated using wave theory. The environmental parameters of the sea state include: significant wave height and spectral peak period under irregular wave conditions, or wave height and period under regular wave conditions. The average output power of the upper floating body when connected to the lower floating body in the target area is calculated using the hydrodynamic coefficients and dynamic equations. An optimization algorithm is then used to optimize the geometric parameters of the lower floating body by taking the maximum average power of the upper floating body as the evaluation index, thus obtaining the optimal geometric parameters of the lower floating body when the average power of the upper floating body is maximized.
6. Using the aforementioned hydrodynamic coefficients and dynamic equations, the average output power of the floating body when connected to the lower floating body in the target area is calculated, including: A hydrodynamic simulation model is built based on the dynamic equations of the floating body to determine its physical constraints. The motion response of the floating body at each degree of freedom is calculated when it is connected to a lower floating body with different geometric shapes, dimensions, and other geometric parameters. The instantaneous energy gain power corresponding to each degree of freedom of the floating body is obtained, and then the average energy gain power of the floating body is calculated. An optimization algorithm is used, with the average energy gain power of the floating body as the objective function. The geometric parameter values of the lower floating body are changed, and the objective function value is calculated. The geometric parameters of the lower floating body with the optimal objective function value are selected as the optimal solution under the corresponding floating body conditions. The optimization algorithm includes, but is not limited to, particle swarm optimization and genetic algorithm.
7. The optimization algorithm for parameters such as the material and length of the connecting rope between the upper and lower floats is basically the same as that used when optimizing the selection of the lower float.
8. The method for optimizing the parameters of the lower body and connecting rope of a twin-bodied wave energy observation buoy suitable for wide-area networked marine ranching clusters according to claim 5, characterized in that, Based on potential flow theory and wave theory, the hydrodynamic coefficients of the corresponding floating bodies are calculated using hydrodynamic software based on marine environmental parameters in the target area and the geometric parameters of the upper and lower floating bodies. The hydrodynamic software includes, but is not limited to, one or more of ANSYS AQWA and WAMIT. The wave theory includes, but is not limited to, linear wave theory and nonlinear wave theory.