Mud floating type offshore wind, light, wave and multi-energy coupling system

Abstract

The present application relates to offshore wind turbine technical field, especially to a mud floating offshore wind and light wave multi-energy coupling system, the system comprises: a mud floating offshore wind turbine foundation; a plurality of interconnected photovoltaic wave energy semi-submersible device, set in the outer periphery of the mud floating offshore wind turbine foundation, and connected with the mud floating offshore wind turbine foundation between the common mooring device, if not appear severe sea conditions, photovoltaic wave energy semi-submersible device can use photovoltaic and wave energy power generation, otherwise photovoltaic wave energy semi-submersible device dive. The above technical scheme not only can multiple energy efficient use, but also can improve the stability of mud floating offshore wind turbine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore wind turbines, in particular to a mud floating offshore wind-solar-wave multi-energy coupling system. BACKGROUND

[0002] With the increasingly prominent energy crisis, offshore wind power as a renewable energy has become an important part of the current energy structure and an important energy to solve the energy crisis. In the related art, the mud floating offshore wind turbine has a single function and poor stability in severe sea conditions.

[0003] Therefore, there is an urgent need to provide a mud floating offshore wind-solar-wave multi-energy coupling system to solve the above technical problems. SUMMARY

[0004] The present application provides a mud floating offshore wind-solar-wave multi-energy coupling system, which not only can efficiently utilize multiple energies, but also can improve the stability of the mud floating offshore wind turbine.

[0005] The present application provides a mud floating offshore wind-solar-wave multi-energy coupling system, which not only can efficiently utilize multiple energies, but also can improve the stability of the mud floating offshore wind turbine.

[0006] A mud floating offshore wind turbine foundation;

[0007] A plurality of interconnected photovoltaic wave energy semi-submersible devices are arranged on the outer periphery of the mud floating offshore wind turbine foundation and connected with the mud floating offshore wind turbine foundation by a common mooring device. If no severe sea conditions occur, the photovoltaic wave energy semi-submersible devices can generate electricity by photovoltaic and wave energy, otherwise the photovoltaic wave energy semi-submersible devices will dive.

[0008] Advantages:

[0009] According to the mud floating offshore wind-solar-wave multi-energy coupling system provided by the present application, a plurality of interconnected photovoltaic wave energy semi-submersible devices are arranged on the outer periphery of the mud floating offshore wind turbine foundation and connected with the mud floating offshore wind turbine foundation by a common mooring device. In this way, offshore wind power, offshore photovoltaic and wave energy generation can be effectively combined, so as to not only make full use of offshore space resources, but also provide additional energy output for offshore wind farms, realize efficient utilization of multiple energies, improve the comprehensive utilization efficiency of energy, enhance the competitiveness and sustainability of offshore wind power development, and effectively reduce the wave load in the marine environment, improve the environmental load of the mud floating offshore wind turbine foundation, reduce the development cost and improve the safety of the wind power system operation. Therefore, the above technical solution not only can efficiently utilize multiple energies, but also can improve the stability of the mud floating offshore wind turbine. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings belong to the protection scope of the present application.

[0011] Figure 1 The structural schematic diagram of the mud floating type offshore wind light wave multi-energy coupling system in the embodiment of the present application is shown in the figure.

[0012] Figure 2 The front view of the multi-energy coupling system shown in the figure is shown in the figure. Figure 1

[0013] Figure 3 The structural schematic diagram of the photovoltaic wave energy semi-submersible device in the multi-energy coupling system shown in the figure is shown in the figure. Figure 1

[0014] Figure 4 The partial enlarged view of the intermediate seat of the photovoltaic wave energy semi-submersible device shown in the figure is shown in the figure. Figure 3

[0015] Figure 5 The structural schematic diagram of the flexible connecting piece in the multi-energy coupling system shown in the figure is shown in the figure. Figure 1

[0016] Figure 6 The partial enlarged view of the mooring device in the multi-energy coupling system shown in the figure is shown in the figure. Figure 1

[0017] The reference signs are shown in the figure.

[0018] 1-mud floating type offshore wind turbine foundation; 2-photovoltaic wave energy semi-submersible device; 21-suspended seat; 211-floating ball; 212-transverse connecting rod; 213-longitudinal connecting rod; 22-intermediate seat; 221-wave energy rotor; 222-energy storage module; 223-opening area; 23-top seat; 231-mounting groove; 232-photovoltaic panel; 233-wave protection plate; 3-mooring device; 31-slideway; 4-flexible connecting piece; 41-protection shell; 42-spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application. ​​​​​

[0020] As Figure 1 and Figure 2 shown, the embodiment of the present application provides a mud floating offshore wind and light wave energy semi-submersible device, comprising:

[0021] a mud floating offshore wind turbine foundation 1;

[0022] a plurality of interconnected photovoltaic wave energy semi-submersible devices 2 are arranged on the outer periphery of the mud floating offshore wind turbine foundation 1, and are connected with the mud floating offshore wind turbine foundation 1 through a common mooring device 3, if severe sea conditions do not occur, the photovoltaic wave energy semi-submersible device 2 can generate electricity using photovoltaic and wave energy, otherwise the photovoltaic wave energy semi-submersible device 2 is submerged.

[0023] In this embodiment, by arranging a plurality of interconnected photovoltaic wave energy semi-submersible devices 2 on the outer periphery of the mud floating offshore wind turbine foundation 1, and connecting the mud floating offshore wind turbine foundation 1 with the common mooring device 3, the offshore wind power, offshore photovoltaic and wave energy generation can be effectively combined, so as to not only make full use of offshore space resources, but also provide additional energy output for offshore wind farms, realize efficient use of multiple energy sources, improve the comprehensive utilization efficiency of energy, and enhance the competitiveness and sustainability of offshore wind power development. The multiple interconnected photovoltaic wave energy semi-submersible devices 2 arranged around the mud floating offshore wind turbine foundation 1 can effectively reduce the wave load in the marine environment, improve the environmental load of the mud floating offshore wind turbine foundation 1, reduce the development cost and improve the safety of the wind power system operation. Therefore, the above technical scheme not only can efficiently utilize multiple energy sources, but also can improve the stability of the mud floating offshore wind turbine.

[0024] That is, the multiple interconnected photovoltaic wave energy semi-submersible devices 2 arranged around the mud floating offshore wind turbine foundation 1 can not only make full use of light energy and wave energy, but also reduce the wave load on the mud floating offshore wind turbine foundation 1.

[0025] In an embodiment of the present application, the working state of the mud floating offshore wind turbine foundation 1 includes full-submerged suspended state, semi-submerged suspended state and mud floating state, that is, the mud floating offshore wind turbine foundation 1 can be defined as a submerged mud floating offshore wind turbine. In this way, the mud floating offshore wind turbine foundation 1 has more diversified working states, so as to better cope with different sea conditions.

[0026] The mud floating type offshore wind turbine foundation refers to a wind turbine foundation capable of converting among full-submerged suspension state, semi-submerged suspension state and mud floating state.

[0027] In an embodiment of the present application, the plurality of photovoltaic wave energy semi-submerged devices 2 are connected by a plurality of flexible connecting members 4. In this way, the plurality of photovoltaic wave energy semi-submerged devices 2 can be effectively connected together to ensure that they work cooperatively in the marine environment, effectively control the distance between the photovoltaic wave energy semi-submerged devices 2, and build a stable and efficient energy collection platform array. In addition, the relative motion between the platforms can be flexibly adjusted to prevent them from colliding due to waves, wind or other external factors.

[0028] As shown in FIGS. Figure 3 and Figure 4 In an embodiment of the present application, the photovoltaic wave energy semi-submerged device 2 comprises, from bottom to top, a suspension seat 21, an intermediate seat 22 and a top seat 23. The intermediate seat 22 is provided with a wave energy rotor 221 and an energy storage module 222. The intermediate seat 22 is located at the waterline in normal sea conditions. The top seat 23 is provided with a photovoltaic panel 232. The energy storage module 222 is electrically connected to the wave energy rotor 221 and the photovoltaic panel 232, respectively.

[0029] In this embodiment, the wave action force is dispersed and alleviated by the cooperative action of the suspension seat 21 and the wave energy rotor 221 of the intermediate seat 22, thereby greatly reducing the stress and vibration of the mud floating type offshore wind turbine foundation 1 under the impact of sea waves. The energy storage module 222 can collect and store the solar energy and wave energy generated by the photovoltaic panel 232 and the wave energy rotor 221 to provide electrical energy for the morphological conversion process of the mud floating type offshore wind turbine foundation 1 and the photovoltaic wave energy semi-submerged device 2, ensuring that the power demand of the system can be met without external power supply during long-term stable operation at sea.

[0030] In an embodiment of the present application, the suspension seat 21 comprises a plurality of floating balls 211, a plurality of transverse connecting rods 212 and a plurality of longitudinal connecting rods 213. Each adjacent two floating balls 211 are connected by a transverse connecting rod 212. Each floating ball 211 and the intermediate seat 22 are connected by a longitudinal connecting rod 213.

[0031] Each floating ball 211 is internally provided with an angle sensor and a gas-water replacement valve (not shown in the figure), and the energy storage module 222 is electrically connected with the angle sensor and the gas-water replacement valve, respectively, the angle sensor is used for detecting the inclination angle change of the floating ball 211, and the gas-water replacement valve is used for adjusting the gas-water ratio in the floating ball 211 based on the inclination angle change, so as to adjust the center of gravity of the floating ball 211.

[0032] In the embodiment, by internally providing each floating ball 211 with an angle sensor and a gas-water replacement valve, the internal ballast water can be adjusted in coordination according to the environmental conditions around the photovoltaic wave energy semi-submersible device 2. In the case of severe environmental conditions, when the mud-floating offshore wind turbine foundation 1 is adjusted to the mud-floating state, the floating ball 211 can be filled with ballast water to increase the draft of the photovoltaic wave energy semi-submersible device 2, so as to ensure the stability of the photovoltaic wave energy semi-submersible device 2. On the contrary, in the case of normal environmental conditions, when the mud-floating offshore wind turbine foundation 1 is adjusted to the suspended state, the floating ball 211 can release part of the ballast water to reduce the draft of the photovoltaic wave energy semi-submersible device 2, so as to ensure the power generation efficiency of the mud-floating offshore wind turbine foundation 1 and the photovoltaic wave energy semi-submersible device 2.

[0033] In an embodiment of the present application, the intermediate seat 22 has four vertically arranged opening regions 223, and the four opening regions 223 are mutually connected, and the wave energy rotor 221 is arranged in one opening region 223 away from the mud-floating offshore wind turbine foundation 1.

[0034] In the embodiment, the intermediate seat 22 is provided with four vertically arranged opening regions 223, and the four opening regions 223 are mutually connected, so that the energy of the wave surge can be better dissipated, and the wave energy rotor 221 is arranged in one opening region 223 away from the mud-floating offshore wind turbine foundation 1, rather than arranging one wave energy rotor 221 in each opening region 223, because the wave energy collection effect of the other three opening regions 223 is much lower than that of one opening region 223 away from the mud-floating offshore wind turbine foundation 1, so that the wave energy collection can be ensured while the cost is reduced as much as possible.

[0035] In an embodiment of the present application, the top seat 23 has an inwardly recessed mounting groove 231, and the photovoltaic panels 232 are uniformly arranged in the mounting groove 231 through rotatable rotating shafts (not shown in the figure), the rotating shafts are electrically connected with the energy storage module 222, and the rotating shafts can drive the photovoltaic panels 232 to rotate to adjust the azimuth angle of the photovoltaic panels 232.

[0036] In the embodiment, by arranging the mounting groove 231, the photovoltaic panels 232 can be better protected without affecting the light absorption of the photovoltaic panels 232, and by arranging the rotating shafts, the azimuth angle of the photovoltaic panels 232 can be adjusted to adapt to different light angles and sea conditions.

[0037] In one embodiment of the present application, the outer periphery of the installation groove 231 is provided with an openable wave protection plate 233, which is electrically connected with the energy storage module 222. If severe sea conditions occur during transportation, the ballast water in the floating ball 211 is filled, the wave protection plate 233 is opened upward, and the azimuth angle of the photovoltaic panel 232 is adjusted to the vertical direction. Otherwise, the center of gravity in the floating ball 211 is adjusted to make the middle seat 22 at the waterline, the wave protection plate 233 is closed downward, and the azimuth angle of the photovoltaic panel 232 is adjusted to the light direction.

[0038] In this embodiment, when severe sea conditions occur, the floating ball 211 needs to increase the ballast, which will cause the photovoltaic wave energy semi-submersible device 2 to have a deep draft. By providing an openable wave protection plate 233 on the outer periphery of the installation groove 231, an effective protective barrier is formed to protect the photovoltaic panel 232 from damage or performance degradation due to sea wave impact and seawater immersion. At the same time, adjusting the azimuth angle of the photovoltaic panel 232 to the vertical direction is also beneficial to prevent seawater from impacting and soaking the photovoltaic panel 232. Conversely, when the environmental conditions are good, the wave protection plate 233 is retracted or closed to prevent affecting the light energy utilization rate of the photovoltaic panel 232.

[0039] As shown in FIG. 1, Figure 5 In one embodiment of the present application, the flexible connecting piece 4 includes a protective shell 41 and a spring 42 arranged inside the protective shell 41. By arranging the protective shell 41, the spring 42 can be prevented from being eroded and rusted by seawater.

[0040] As shown in FIG. 1, Figure 6 In one embodiment of the present application, the mooring device 3 is provided with double-sided sliding rails 21. The mooring point of the mud floating offshore wind turbine foundation 1 and the mooring device 3 is on one side of the sliding rail 21, and the mooring point of the photovoltaic wave energy semi-submersible device 2 and the mooring device 3 is on the other side of the sliding rail 21. The mooring points can move along the sliding rail 21.

[0041] In this embodiment, by arranging the double-sided sliding rails 21, not only the conversion of the mud floating offshore wind turbine foundation 1 from the suspended state to the mud floating state and the process of the photovoltaic wave energy semi-submersible device 2 being filled with ballast water and diving are met, but also the balance of the two structures during movement and environmental changes is ensured. In addition, the number of anchor points needed is reduced, thereby effectively saving the offshore space.

[0042] It can be understood that the photovoltaic wave energy semi-submersible device 2 adopts a modular design, so that each key component can be independently produced, prefabricated, and quickly assembled on site, thereby greatly simplifying the complexity of offshore construction and improving the construction efficiency. The photovoltaic panel 232, the wave protection plate 233, the wave energy rotor 221, the flexible connecting piece 4, the connecting rod, and the floating ball 211, etc. The main components can be individually prefabricated on land, greatly reducing the workload and risk of offshore construction, and also shortening the construction period.

[0043] It is to be noted that the relationship terms such as first and second, and the like, are used herein only to differentiate one entity or operation from another, and do not necessarily require or imply these entities or operations to be in any such actual relationship or order. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not required to include only those elements on the list, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses. Without more limitations, an element defined by an "comprising" statement is not excluded from a process, method, article, or apparatus that includes the element, even if the same process, method, article, or apparatus includes other identical elements. Notwithstanding the numerical preferences described above, the scope of the present application is defined by the appended claims.

[0044] Finally, it should be noted that the above-mentioned only the preferred embodiments of the present application, only for the description of the technical solutions of the present application, and not for limiting the scope of protection of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, are included in the scope of protection of the present application.

Claims

1. A mud floating offshore wind light wave multi-energy coupling system, characterized in that, The mud floating offshore wind turbine foundation comprises: a plurality of photovoltaic wave energy semi-submersible devices connected with each other, arranged at the outer periphery of the mud floating offshore wind turbine foundation, and connected with the mud floating offshore wind turbine foundation through a shared mooring device, wherein the photovoltaic wave energy semi-submersible devices can generate electricity through photovoltaic and wave energy if no severe sea conditions occur, and otherwise the photovoltaic wave energy semi-submersible devices can submerge; the photovoltaic wave energy semi-submersible devices are connected through a plurality of flexible connecting members; the mooring device is provided with double-sided sliding rails, the mud floating offshore wind turbine foundation and the mooring points of the mooring device are arranged on one side of the sliding rails, and the photovoltaic wave energy semi-submersible devices and the mooring points of the mooring device are arranged on the other side of the sliding rails, and the mooring points can move along the sliding rails; the photovoltaic wave energy semi-submersible devices comprise a suspension seat, an intermediate seat and a top seat connected in sequence from bottom to top, the intermediate seat is provided with a wave energy rotor and an energy storage module, the intermediate seat is arranged at the waterline in normal sea conditions, the top seat is provided with photovoltaic panels, and the energy storage module is electrically connected with the wave energy rotor and the photovoltaic panels respectively; the intermediate seat has four vertically arranged and sequentially connected opening regions, and the four opening regions are connected with each other, and the wave energy rotor is arranged in one of the opening regions away from the mud floating offshore wind turbine foundation; the top seat has an inwardly recessed mounting groove, the photovoltaic panels are arranged in the mounting groove through rotatable rotating shafts, the rotating shafts are electrically connected with the energy storage module, and the rotating shafts can drive the photovoltaic panels to rotate to adjust the azimuth angle of the photovoltaic panels; the outer periphery of the mounting groove is provided with openable and closable wave protection plates, the wave protection plates are electrically connected with the energy storage module, if severe sea conditions occur during transportation, the ballast water in the floating ball of the suspension seat is filled, the wave protection plates are opened upward, and the azimuth angle of the photovoltaic panels is adjusted to be vertical, otherwise the center of gravity in the floating ball is adjusted to make the intermediate seat be at the waterline, the wave protection plates are closed downward, and the azimuth angle of the photovoltaic panels is adjusted to be light direction. The working states of the mud floating offshore wind turbine foundation include full-submerged suspension state, semi-submerged suspension state and mud floating state.

2. The system of claim 1, wherein, The flexible connecting members comprise a protective shell and a spring arranged in the protective shell.

3. The system of claim 1, wherein, The suspension seat comprises a plurality of floating balls, a plurality of horizontal connecting rods and a plurality of vertical connecting rods, each two adjacent floating balls are connected through a horizontal connecting rod, and each floating ball and the intermediate seat are connected through a vertical connecting rod; 4. The system of any one of claims 1-3, wherein, each floating ball is provided with an angle sensor and a gas-water replacement valve inside, the energy storage module is electrically connected with the angle sensor and the gas-water replacement valve respectively, the angle sensor is used to detect the inclination angle change of the floating ball, and the gas-water replacement valve is used to adjust the gas-water ratio in the floating ball based on the inclination angle change to adjust the center of gravity of the floating ball. ​

Images