Wave energy power generation module-power generation blanket-power generation cluster

Abstract

The invention belongs to the field of wave energy utilization, and discloses a wave energy power generation module which adopts a compact mechanism to achieve efficient collection of wave energy, is simple in structure and convenient to lay, greatly reduces hardware cost of a unit area and comprises a bearing unit, a conversion unit and an energy storage part. The flow generation part is fixedly arranged on the bearing unit, the magnetic field part is in buffer connection with the bearing unit, the magnetic field part is used for generating magnetic lines interfering with the flow generation part, the energy storage part is fixedly connected with the magnetic field part, the energy storage part is provided with two energy storage electrodes, each energy storage electrode is provided with a vertically extending leading-out reed pair, and the flow generation part is provided with two pairs of energy storage contacts corresponding to the leading-out reeds. When waves drive the bearing unit to float up and down, the flow generation piece moves up and down relative to the magnetic field piece to cut magnetic lines of force, the lead-out reed pair is selectively connected with the two pairs of energy storage contacts, and therefore electric energy is stored in the energy storage piece. The invention further discloses a wave energy power generation blanket and a power generation cluster based on the modules.

Description

Technical Field

[0001] The invention belongs to the field of wave energy utilization, and specifically relates to a wave energy power generation module-power generation blanket-power generation cluster. Background Art

[0002] The global energy demand has increased significantly. It is estimated that the global energy consumption in 2040 will be about 30% higher than that in 2010. The ocean, which accounts for 71% of the earth's area, is a treasure trove of green energy and is considered to be one of the most promising marine energy sources. The coast of Taiwan Province has the largest amount of wave energy in my country, which is 4.29 million kW, accounting for 1 / 3 of the national total. The coasts of Zhejiang, Guangdong, Fujian and Shandong also have a large amount. Therefore, the development and utilization of wave energy is of great significance to alleviate my country's energy crisis.

[0003] At present, the global energy demand is increasing. It is estimated that global energy consumption in 2040 will be about 30% higher than in 2010. In order to avoid an energy crisis, the development of new energy has become an urgent problem to be solved. The ocean, which accounts for 71% of the earth's area, is a treasure trove of green energy and is considered to be one of the most promising marine energy sources. The coast of Taiwan Province has the largest amount of energy in my country, which is 4.29 million kW, accounting for 1 / 3 of the total national total. The coasts of Zhejiang, Guangdong, Fujian and Shandong are also relatively large. Therefore, the development and utilization of wave energy in the ocean is of great significance to alleviating my country's energy crisis.

[0004] Wave energy mainly refers to the kinetic energy and potential energy of the undulating waves on the ocean surface, that is, the energy generated by the periodic movement of seawater in the vertical direction. Marine wave energy has the advantages of large energy storage, high energy density, wide range, and small impact on the environment.

[0005] However, in the application of existing wave energy collection devices, since the structure of the collection device is relatively complex and the wave energy is too dispersed on the sea surface, on the one hand, if the wave energy is collected by a single collection device, it is difficult for the collection device to effectively collect the dispersed wave energy; on the other hand, if the wave energy is collected by a combination of multiple collection devices, the hardware cost per unit area is too high, making it difficult to promote and use on a large scale. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a wave energy power generation module-power generation blanket-power generation cluster, which adopts a relatively compact mechanism to achieve efficient collection of wave energy, has a simple structure, is easy to lay, and greatly reduces the hardware cost per unit area.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A wave energy power generation module, characterized in that it includes: a bearing unit, floating on the sea surface, a conversion unit, arranged on the bearing unit, the conversion unit is used to convert wave energy into electrical energy, and an energy storage component, which is used to couple with the output of the conversion unit, wherein the conversion unit includes a current generating component and a magnetic field component, the current generating component is fixedly arranged on the bearing unit, the magnetic field component and the bearing unit are connected in a buffering manner, the magnetic field component is used to generate magnetic lines of force that interfere with the current generating component, the energy storage component is fixedly connected to the magnetic field component, the energy storage component has two energy storage electrodes, each energy storage electrode has a pair of lead-out springs extending vertically, and the current generating component has two pairs of energy storage contacts arranged in the vertical direction and corresponding to the lead-out springs. When the waves drive the bearing unit to float up and down, the current generating component moves up and down relative to the magnetic field component to cut the magnetic lines of force, and the lead-out springs are selectively connected to the two pairs of energy storage contacts, thereby storing electrical energy in the energy storage component.

[0009] Preferably, the bearing unit further includes a buffer spring extending vertically, the magnetic field component and the bearing unit are connected in a buffering manner via the buffer spring, there are multiple buffer springs, and the elastic coefficient k of the buffer spring is:

[0010]

[0011] M is the total mass of the combined structure of the energy storage component and the magnetic field component, ω is the average wave fluctuation frequency of the sea surface, and n is the number of buffer springs.

[0012] Preferably, the magnetic field component is a vertically extending frame-shaped permanent magnet, the current-generating component is a wire group inserted into the magnetic field component, and the N and S poles of the magnetic field component are respectively located on opposite sides of the current-generating component in the horizontal direction.

[0013] Furthermore, the bearing unit comprises a module float and a fixing plate, the module float floats on the sea surface, the fixing plate is arranged on the upper surface of the module float, and the flow generating member and the buffer spring are both fixed on the fixing plate.

[0014] Furthermore, the number of the flow-generating members is two groups, so the number of the lead-out spring pairs is two, and the buffer spring is located between the two groups of flow-generating members.

[0015] A wave energy power generation blanket, characterized in that it comprises: a plurality of wave energy power generation modules movably connected to each other, the wave energy power generation modules being the above-mentioned wave energy power generation modules.

[0016] A wave energy power generation cluster, characterized in that it comprises: a plurality of wave energy power generation blankets movably connected to each other, the wave energy power generation blankets being the above-mentioned wave energy power generation blankets; and a limiting anchor chain, wherein the wave energy power generation cluster limits the sea surface area where it moves by limiting the anchor chain.

[0017] Preferably, the present invention further comprises a main control unit, the energy storage components of the plurality of wave energy generation modules are electrically coupled to each other and output to the main control unit in a converged manner, and the main control unit comprises an inverter and a transformer electrically connected to each other.

[0018] Furthermore, the main control unit is electrically connected to the submarine power transmission cable circuit.

[0019] Furthermore, the main control unit also includes a main control buoy floating on the sea surface, the inverter and the transformer are arranged on the upper surface of the main control buoy, the main control buoy and the module buoys of multiple wave energy power generation blankets are movably connected to each other through chain connection, and the main control board and the multiple wave energy power generation modules are arranged in a matrix as a whole.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Because the wave energy power generation module of the present invention includes a bearing unit, a conversion unit and an energy storage component, the conversion unit includes a current component and a magnetic field component, the current component is fixed on the bearing unit, the magnetic field component and the bearing unit are connected in a buffering manner, the magnetic field component is used to generate magnetic lines of force that interfere with the current component, the energy storage component is fixed to the magnetic field component, the energy storage component has two energy storage electrodes, each energy storage electrode has a pair of lead-out springs extending vertically, and the current component has two pairs of energy storage contacts corresponding to the lead-out springs. When the waves drive the bearing unit to float up and down, under the action of inertia, the current component moves up and down relative to the magnetic field component and cuts the magnetic lines of force, and the lead-out spring pairs are selectively connected to the two pairs of energy storage contacts, thereby storing electrical energy in the energy storage component. Therefore, the present invention adopts a relatively compact mechanism to achieve efficient collection of wave energy, and has a simple structure and convenient laying, which greatly reduces the hardware cost per unit area.

[0022] 2. Because the bearing unit of the present invention further includes a vertically extending buffer spring, the magnetic field component and the bearing unit are connected in a buffering manner through the buffer spring, the number of the buffer springs is multiple, and the elastic coefficient k of the buffer spring is:

[0023]

[0024] M is the total mass of the combined structure of the energy storage component and the magnetic field component, ω is the average wave fluctuation frequency of the sea surface, and n is the number of buffer springs. When the waves drive the bearing unit to float up and down, the flow-generating component moves up and down relative to the magnetic field component and cuts the magnetic lines of force. The buffer spring is compressed and stores energy in this process, and the buffer spring drives the magnetic field component to move again relative to the flow-generating component in the subsequent expansion and energy storage stage, that is, the flow-generating component cuts the magnetic lines of force of the magnetic field component twice in the energy storage and energy release stages of the buffer spring. Therefore, the present invention further improves the efficiency of wave energy conversion by setting an appropriate elastic coefficient.

[0025] 3. Because the wave energy power generation cluster of the present invention includes multiple power generation blankets and limiting anchor chains, and the wave energy power generation blanket includes multiple wave energy power generation modules, the wave energy power generation cluster limits the active sea surface area through the edge anchor chain. Therefore, the present invention is easy to form a large-scale cluster application of wave energy power generation modules, and is easy to expand, and the integration of the wave energy power generation cluster can be completed through a chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional schematic diagram of a wave energy power generation module according to an embodiment of the present invention;

[0027] Figure 2(a) shows Figure 1 A cross-sectional view from a front view perspective (the magnetic field component is located at the lowest position);

[0028] Figure 2(b) shows Figure 1 A cross-sectional view from a front view perspective (the magnetic field component is located at the highest position);

[0029] Figure 3 for Figure 1 A cross-sectional view from a top perspective;

[0030] Figure 4 It is a schematic diagram of the coordination of the flow generating component and the energy storage component of an embodiment of the present invention;

[0031] Figure 5 A top view of a wave energy power generation cluster according to an embodiment of the present invention;

[0032] Figure 6 for Figure 5 sectional view of .

[0033] In the figure: 10, wave energy power generation module, 11, bearing unit, 111, module float, 111a, float connection hole, 112, fixing plate, 113, buffer spring, 12, conversion unit, 121, current generating part, 1211, energy storage contact, 1211a, bending guide rod, 122, magnetic field part, 123a, frame top plate, 123b, frame bottom plate, 13, energy storage part, 131, lead-out spring pair, 1000, wave energy power generation cluster, 100, power generation blanket, 200, main control unit, 300, limiting anchor chain, C, submarine power transmission cable. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments are combined with the accompanying drawings to specifically describe the wave energy power generation module-power generation blanket-power generation cluster of the present invention. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0035] like Figures 1 to 3As shown, the wave energy power generation module 10 in this embodiment includes a carrying unit 11 , a conversion unit 12 and an energy storage member 13 .

[0036] The carrying unit 11 floats on the sea surface, and includes a module float 111 , a fixing plate 112 and a buffer spring 113 .

[0037] The module float 111 floats on the sea surface, the fixing plate 12 is arranged on the upper surface of the module float 111, the buffer spring 113 is arranged on the fixing plate 12 and the buffer spring 113 extends vertically upward. Specifically, the module float 111 has a larger surface than the fixing plate 112, so that the edge of the fixing plate 112 has a positive step difference from the edge of the module float 111, and a float linking hole 111a is formed in the step difference part, so that multiple module floats 111 can be flexibly connected to each other in a chain-like manner.

[0038] The conversion unit 12 is disposed on the upper surface of the fixing plate 112 of the carrying unit 11 , and the conversion unit 12 is used to convert wave energy into electrical energy.

[0039] The conversion unit 12 includes a flow component 121 and a magnetic field component 122 .

[0040] The flow element 121 is fixed on the fixed plate 112, and the magnetic field element 122 and the fixed plate 112 of the bearing unit 11 are connected in a buffering manner through the buffer spring 113. Specifically, the conversion unit 12 also includes a frame top plate 123a and a frame bottom plate 123b fixed on the top and bottom of the magnetic field element 122, respectively, the upper end of the buffer spring 113 is fixed to the lower surface of the frame bottom plate 123b, and the upper end of the buffer spring 113 is fixed to the upper surface of the fixed plate 112, so that the whole composed of the frame top plate 123a, the frame bottom plate 123b and the magnetic field element 122 forms an inertial system relative to the whole composed of the bearing unit 11 and the flow element 121.

[0041] The number of the buffer springs 113 is multiple, and the elastic coefficient k of the buffer spring 113 is:

[0042]

[0043] M is the total mass of the combined structure of the energy storage member 13 and the magnetic field member 122, ω is the average wave fluctuation frequency of the sea surface, and n is the number of buffer springs 113. Specifically, the average wave fluctuation frequency is based on the historical record of the wave fluctuation of the sea surface in the previous year.

[0044] Specifically, during the process in which the sea surface waves drive the wave energy generation module 10 to rise and fall through the bearing unit 11, the magnetic field member 122, the buffer spring 113, and the bearing unit 11 constitute a vibrating body with a single degree of freedom of basic excitation under the excitation of low-frequency waves. The natural frequency of this vibrating body is relatively close to the up-and-down frequency of the waves. Causing resonance of this vibrating body can fully absorb wave energy. Let the average wave frequency of this sea area be ω, the total mass of the inertial system of the magnetic field member 122 and the components fixedly connected thereto be M, the total mass of the bearing unit 11 and the current generating member 121 be m, and let the total stiffness of the buffer spring 113 below it be K (composed of n parallel buffer springs 113, and the stiffness of each single buffer spring 113 is k), then the square of the natural frequency ω n is K / M. If ω n = ω ± 0.2ω, then the elastic coefficient k of the buffer spring 113 = (1 ± 0.2)Mω 2 / n.

[0045] The current generating member 121 is a group of wires extending vertically upward, and the magnetic field member 122 is a frame-shaped permanent magnet extending vertically. The current generating member 121 is inserted into the magnetic field member 122. The N and S poles of the magnetic field member 122 are located on the opposite sides of the current generating member 121 along the horizontal direction, and the magnetic field member 122 is used to generate magnetic force lines that interfere with the current generating member 121. Specifically, the magnetic field member 122 is a permanent magnet with an open structure at both the top and bottom, and the frame top plate 123a and the frame bottom plate 123b also have through openings (not shown in the drawings) corresponding to and communicating with this open structure. The current generating member 122 passes through the magnetic field member 122 from the through opening of the frame bottom plate 123b and can pass through the magnetic field member 122 from the through opening of the frame top plate 123a.

[0046] The current generating member 121 has two pairs of energy storage contacts 1211 extending in the vertical direction. Specifically, the periphery of the magnetic field member 122 also has an open structure. The current generating member 121 has two pairs of bent lead rods 1211a bent and led out from within the magnetic field member 122, and this pair of bent lead rods 1211a are distributed vertically up and down, that is, a pair of bent lead rods 1211a are led out at the same height. The two pairs of energy storage contacts 1211 are respectively formed at the free ends of the two pairs of bent lead rods 1211a. In this embodiment, the bent lead rods 1211a are in a "匚" shape, and a pair of bent lead rods 1211a are symmetrically arranged.

[0047] Specifically, the frame bottom plate 123b is formed with a contact through hole (not shown in the drawings) vertically corresponding to the energy storage contact 1211. When the current-generating component 121 moves relative to the magnetic field component 122, the current-generating component 121 moves in the through-mouth portion, and the energy storage contact 1211 can pass through the contact through hole. In addition, on the frame bottom plate 123b, the contact through hole is integrated with the through-mouth portion, and multiple buffer springs 113 are all arranged to avoid the through hole and the contact through hole, thereby allowing the current-generating component 121 and the magnetic field component 122 to obtain a larger relative movement, that is, the wave energy can be converted more thoroughly.

[0048] In this embodiment, there are two groups of flow components 121 and magnetic field components 122, so each group of flow components 121 has two pairs of energy storage contacts 1211, which are located in the middle of the frame bottom plate 123b through holes, and multiple buffer springs 113 are correspondingly located on the four edges of the frame bottom plate 123b.

[0049] like Figure 4 As shown, the energy storage component 13 is fixedly connected to the magnetic field component 122 , and the energy storage component 13 is used to couple with the output of the conversion unit 13 . Specifically, the energy storage component 13 is a battery.

[0050] The energy storage member 13 has two energy storage electrodes (not shown in the drawings), each of which has a pair of lead-out springs 131 extending vertically, and two pairs of energy storage contacts 1211 correspond to the lead-out springs 131 in the vertical direction. Specifically, the frame top plate 123a also has a spring entry through hole (not shown in the drawings), the energy storage member 13 is fixed on the upper surface of the frame plate 123a, and the lead-out spring pair 131 extends between the two magnetic field members 122 through a vertical lead-out rod.

[0051] When the wave drives the carrier unit 11 to float up and down, the current generating member 121 moves up and down relative to the magnetic field member 122 to cut the magnetic field lines, and the lead-out spring pair 131 selectively connects with the two pairs of energy storage contacts 1211, thereby storing electrical energy in the energy storage member 13. Specifically, the current generated by the lead-out spring pair 131 connecting with the energy storage contacts 1211 is less than 80 mA, so that no contact arc is generated during the clutch process.

[0052] Specifically, based on the above formula of the buffer spring k and ω, n is appropriately adjusted so that the flow-generating component 121 moves a longer distance relative to the magnetic field component 122 .

[0053] Thereby achieving better wave energy-electricity conversion efficiency.

[0054] The wave energy power generation blanket 100 comprises a plurality of wave energy power generation modules 10 movably connected to each other. Specifically, the plurality of wave energy power generation modules 10 are chain-connected through floating body linking holes 111 a.

[0055] like Figure 5 and Figure 6As shown, the wave energy power generation cluster 1000 includes a plurality of wave energy power generation blankets 100 , a main control unit 200 and a limiting anchor chain 300 .

[0056] A plurality of wave energy power generation blankets 100 are movably connected to each other.

[0057] The main control unit 200 includes a main control float (not shown in the drawings), an inverter (not shown in the drawings) and a transformer (not shown in the drawings), and the inverter and the transformer are electrically connected to each other.

[0058] The main control buoy floats on the sea surface, and the inverter and the transformer are both arranged on the upper surface of the main control buoy.

[0059] The main control float and the module floats 111 of multiple wave energy power generation blankets 100 are movably connected to each other through chain connection, and the main control float and the multiple wave energy power generation modules are arranged in a matrix as a whole. Specifically, the edge of the main control float also has a linking through hole (not shown in the drawings), and the main control float and the module float 10 are chain-connected.

[0060] In this embodiment, the wave energy power generation cluster 1000 includes 4 wave energy power generation blankets 100, each wave energy power generation blanket 100 includes (6×11-1) wave energy power generation modules 10 (6 rows, 11 columns, one corner is less than one wave energy power generation module 10, and the 4 wave energy power generation blankets 100 are arranged around the main control unit 200 (occupying the space of the 4 missing wave energy power generation modules 10), so that the wave energy power generation cluster 1000 is arranged in a matrix.

[0061] The energy storage components 13 of the plurality of wave energy generation modules 10 are electrically coupled to each other and are output to the main control unit 200. Specifically, all the energy storage components 13 are output to the inverter of the main control unit 200 to convert the energy into alternating current, which is then boosted into high-voltage alternating current through a transformer, and finally connected to the submarine transmission cable C to be sent to the corresponding power demand end.

[0062] The wave energy power generation cluster 1000 is confined to a predetermined sea surface area by limiting anchor chains 300. Specifically, a plurality of limiting anchor chains 300 are symmetrically connected to the edge of the wave energy power generation cluster 1000, and the limiting anchor chains 300 are anchored at predetermined anchor points, so that the wave energy power generation cluster 1000 will not be washed away by the waves.

[0063] The above-mentioned implementation modes are preferred cases of the present invention and are not used to limit the protection scope of the present invention. Various deformations or modifications that can be made by ordinary technicians in this field without creative work within the scope of the attached claims are still within the protection scope of this patent.

Claims

1. A wave energy power generation module, characterized in that: include: The load-bearing unit floats on the sea. A conversion unit is arranged on the carrying unit, and is used to convert wave energy into electrical energy. An energy storage element, used for coupling with the output of the conversion unit, Wherein, the conversion unit comprises a flow component and a magnetic field component, The current-generating component is fixed on the bearing unit, the magnetic field component is buffer-connected with the bearing unit, the magnetic field component is used to generate magnetic lines of force that interfere with the current-generating component, the energy storage component is fixedly connected to the magnetic field component, the energy storage component has two energy storage electrodes, each of the energy storage electrodes has a pair of lead-out springs extending vertically, and the current-generating component has two pairs of energy storage contacts arranged in the vertical direction and corresponding to the lead-out springs, When the waves drive the carrying unit to float up and down, the current generating member moves up and down relative to the magnetic field member to cut the magnetic lines of force, and the lead-out spring pair is selectively connected with the two pairs of energy storage contacts, thereby storing electrical energy in the energy storage member.

2. The wave energy power generation module according to claim 1, characterized in that: in, The bearing unit further comprises a vertically extending buffer spring, and the magnetic field component and the bearing unit are connected in a buffering manner via the buffer spring. The number of the buffer springs is multiple, and the elastic coefficient k of the buffer spring is: M is the total mass of the combined structure of the energy storage component and the magnetic field component, ω is the average wave fluctuation frequency of the sea surface, and n is the number of the buffer springs.

3. The wave energy power generation module according to claim 1, characterized in that: in, The magnetic field component is a vertically extending frame-shaped permanent magnet, the current-generating component is a wire group inserted into the magnetic field component, and the N and S poles of the magnetic field component are respectively located on opposite sides of the current-generating component in the horizontal direction.

4. The wave energy power generation module according to claim 2, characterized in that: in, The load-bearing unit includes a module float and a fixing plate. The module float floats on the sea surface, the fixing plate is arranged on the upper surface of the module float, and the flow generating member and the buffer spring are both fixedly arranged on the fixing plate.

5. A wave energy power generation blanket, characterized in that: include: A plurality of the wave energy power generation modules are movably connected to each other, and the wave energy power generation module is the wave energy power generation module according to claim 4.

6. A wave energy power generation cluster, characterized in that: include: A plurality of wave energy power generation blankets movably connected to each other, the wave energy power generation blanket is the wave energy power generation blanket according to claim 5, A limiting anchor chain is used to limit the sea surface area where the wave energy power generation cluster is active.

7. The wave energy power generation cluster according to claim 6, characterized in that: Also includes: Main control unit, The energy storage components of the plurality of wave energy power generation modules are electrically coupled to each other and are output to the main control unit in a converged manner. The main control unit includes an inverter and a transformer that are electrically connected to each other.

8. The wave energy power generation cluster according to claim 7, characterized in that: Also includes: The main control unit further comprises a main control floating body floating on the sea surface, and the inverter and the transformer are both arranged on the upper surface of the main control floating body. The main control float and the module floats of the plurality of wave energy power generation blankets are movably connected to each other through a chain connection, and the main control panel and the plurality of wave energy power generation modules are arranged in a matrix as a whole.

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