A wave-current integrated array suspended power generation device

Abstract

The present invention discloses a wave-current integrated array suspended power generation device, which is composed of several groups of wave-current turbines and an anchoring system; the characteristics are: each group of wave-current turbines is installed on a bracket, including an impeller, a transmission connecting rod mechanism, a generator and a buoy; wherein, after the impeller rotates in a circle, the generator is driven by the transmission connecting rod mechanism to generate electricity, the first group of buoys is installed on both sides of the bracket, and the wave-current turbine floats on the sea surface using the buoys. The present invention arranges multiple turbines along the wave propagation direction, so that each turbine is subjected to the action of waves under different wave heights and wave phases, proposes the concept of overall energy acquisition stability of the turbine array, innovatively designs a horizontal vertical axis suspended turbine array, and uses a reasonable spatial layout to obtain multi-degree-of-freedom wave and tidal current energy.

Description

Technical field:

[0001] The present invention relates to the technical field of an integrated power generation device, and in particular to a wave-current integrated array suspended power generation device and a maximum power active control strategy. Background technology:

[0002] Since wave and tidal energy have a wide distribution range and their spatial and temporal distribution, structure, frequency and phase are different in different sea areas, both domestically and abroad, wave and tidal energy are studied and utilized separately, and there are problems such as low overall conversion efficiency and poor reliability. At present, there is a lack of standardized design and matching parametric design system for suspended turbine arrays.

[0003] In fact, in the development and utilization of marine renewable energy, wave and tidal energy are inseparable and interact with each other. Due to the different power generation mechanisms of waves and tidal currents, the interaction between waves and tidal currents can sometimes enhance the power generation effect, and sometimes weaken the power generation effect, causing the conversion device to often be in non-designed working conditions or unable to generate electricity, or even damage the power generation equipment.

[0004] Therefore, studying the mechanism of the integration of wave and tidal energy is a scientific problem that needs to be solved urgently in order to achieve the standardization and large-scale promotion of ocean energy power generation devices.

[0005] Current offshore tidal energy generation devices have the following shortcomings:

[0006] 1. The structure of the traditional tidal energy suspension power generation device is relatively simple. During a cycle of wave interference, the power generation of the device also changes periodically. It is difficult to ensure that the power generation is maintained within a relatively stable range under different sea conditions. The above reasons lead to the fact that the power converted by the power generation device cannot supply power to most devices that require relatively stable voltage to work, which reduces the power generation efficiency of the power generation device and limits its scope of use.

[0007] 2. Currently, research on offshore power generation devices mainly focuses on experiments on how to obtain energy, and rarely considers the protection, fixation and utilization of offshore power generation devices. Summary of the invention:

[0008] In order to solve the above problems, the present invention aims to provide a suspended power generation device suitable for offshore wave and current integrated array, so that it has relatively stable power to adapt to more complex working environments and facilitate the connection of electric energy to the grid.

[0009] The technical solution of the present invention is as follows: a wave-current integrated array suspended power generation device, which is composed of several groups of wave-current turbines and an anchoring system; it is characterized in that each group of wave-current turbines is installed on a bracket, including an impeller, a transmission connecting rod mechanism, a generator and a buoy; wherein, after the impeller rotates in a circle, the generator is driven to generate electricity through the transmission connecting rod mechanism, the first group of buoys is installed on both sides of the bracket, and the wave-current turbine uses the buoys to float on the sea surface.

[0010] In one embodiment, the transmission connecting rod mechanism includes a transmission connecting rod, a first end of the transmission connecting rod is movably connected to the impeller shaft, and a second end of the transmission connecting rod is movably connected to the shaft of the generator coil, and the impeller shaft is connected to the impeller through a connecting component, wherein a group of transmission connecting rods are respectively installed at both ends of the impeller and both ends of the generator coil.

[0011] In one embodiment, the angular phase difference between the two groups of the transmission connecting rods on both sides of the impeller is 180°.

[0012] In one embodiment, several groups of wave-current turbines are arranged in an array, and adjacent wave-current turbines in a first group are connected by a universal connecting rod, which is basically consistent with the wave direction; adjacent wave-current turbines in a second group are connected by a fixed connecting rod, which is basically perpendicular to the wave direction.

[0013] In one embodiment, the mooring system includes a mooring system buoy, an anchor chain and a fixed anchor; wherein the fixed anchor is arranged on the seabed, the fixed anchor is connected to the second group of buoys through the anchor chain, and the second group of buoys is connected to the group of wave-flow turbines through a device fixing rod.

[0014] In one embodiment, the universal connecting rod and the wave current turbine or the second group of buoys and the device fixing rod are connected via a universal joint.

[0015] In one embodiment, a support frame is further included, and the impeller is connected to the bracket via the support frame to provide support for the impeller, and the rotating shaft of the impeller is a crankshaft.

[0016] In one embodiment, the universal joints of the second set of buoys are connected to the device fixing rod via an anchoring system interface.

[0017] In one embodiment, the angle of the universal shaft on the universal joint is adjusted so that the wave acts vertically on the impeller to obtain maximum power generation efficiency.

[0018] In one embodiment, each group of wave flow turbines are arranged at a certain distance from each other, forming a rectangular array as a whole.

[0019] In one embodiment, it also includes a device for controlling and managing the power module, including an antenna, a battery, a microcomputer, and interfaces for various functions.

[0020] The main advantages or positive effects of the present invention compared with the prior art are:

[0021] 1) The traditional suspended vertical axis turbine has problems such as low total energy efficiency, high starting speed requirement, poor energy stability and strong volatility under the combined action of waves and currents. The present invention sets multiple turbines along the wave propagation direction, so that each turbine is under the action of waves with different wave heights and wave phases, proposes the concept of overall energy stability of the turbine array, and innovatively designs a horizontal vertical axis suspended turbine array, which uses a reasonable spatial layout to obtain multi-degree-of-freedom wave and tidal energy.

[0022] 2) Integrate different scales of integrated devices appropriately under different working environments. The connection device of the wave flow turbine 001 has a high degree of interchangeability. The universal connecting rod and the fixed connecting rod can be set to different lengths under different working environments to obtain the maximum power generation efficiency.

[0023] 3) Design an innovative tidal energy power generation equipment integrated system, which has little effect on water flow resistance and can ensure structural stability. The connecting rod and the device fixing rod are made of materials with light weight, wear resistance, corrosion resistance, durability and other characteristics. At the same time, the outer surface is painted to prevent rust.

[0024] 4) It is necessary to clean the power generation equipment regularly to prevent marine organisms from attaching and obstructing the flow of water. It is also necessary to prevent floating garbage from being drawn into the rotating power generation equipment and damaging the power generation equipment. The device has relatively few types of parts, and problems between parts are relatively rare, so the maintenance and cleaning difficulty is relatively low.

[0025] 5) Multiple wave-flow turbines are integrated for power generation to ensure relatively stable power and are equipped with power grid-connected devices. After adjustment by the converter, the electric energy enters the interface and reaches the grid. The electric energy is transported through the grid and transmitted to the energy storage power station. It is then transmitted to the interface through the converter and enters the energy storage power station to complete the storage of electric energy.

[0026] 6) The controller can be used to centrally control each module device to realize intelligent remote monitoring. The monitoring equipment data is regularly sent to land to facilitate the study of the corresponding sea environment and other conditions. Description of the drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of a wave-current integrated array suspended power generation device in one embodiment of the present invention;

[0028] Figure 2 This is a partial installation diagram of a wave flow turbine in one embodiment of the present invention;

[0029] Figure 3 This is a partial enlarged view of the interface between the mooring system and the wave current turbine in one embodiment of the present invention;

[0030] Figure 4 This is a partial enlarged view of a universal joint connected to a wave-flow turbine in one embodiment of the present invention;

[0031] Figure 5 This is a front view of a wave flow turbine in one embodiment of the present invention;

[0032] Figure 6 A schematic diagram of a double parallelogram transmission mechanism in one embodiment of the present invention;

[0033] Figure 7 The figure is a working principle diagram of a power grid-connected circuit in an embodiment of the present invention.

[0034] In the diagram:

[0035] 001 Wave Stream Turbine

[0036] 101 Impeller

[0037] 102 Generator

[0038] 103 transmission connecting rod

[0039] 104 bearing

[0040] 105 control and power management module

[0041] 201 support frame

[0042] 202 bracket

[0043] 203 Float

[0044] 204 Universal Joint

[0045] 205 fixed connecting rod

[0046] 206 universal connecting rod

[0047] 301 device fixing rod

[0048] 302 Mooring System Interface

[0049] 303 Anchoring System Universal Joint

[0050] 401 Mooring System Buoy

[0051] 402 anchor chain

[0052] 403 fixed anchor

[0053] 106 Impeller shaft

[0054] 107 Connecting parts

[0055] 108 Rotating shaft of the generating coil

[0056] 109 generator coil Specific implementation method:

[0057] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0058] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0060] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0061] Please refer to Figure 1 Combined with Figure 2-Figure 7The present invention discloses a wave-current integrated array suspended power generation device, including a wave-current turbine 001, an impeller 101, a generator 102, a transmission connecting rod 103, a bearing 104, a control and power management module 105, a rotating shaft 106 of the impeller, a connecting component 107, a rotating shaft 108 of the generator coil, a generator coil 109, a support frame 201, a bracket 202, a buoy 203, a universal joint 204, a fixed connecting rod 205, a universal connecting rod 206, a device fixing rod 301, an anchoring system interface 302, an anchoring system universal joint 303, an anchoring system buoy 401, an anchor chain 402, and a fixed anchor 403.

[0062] In the wave-current integrated array suspended power generation device, a certain wave-current turbine is connected to the device fixing rod 301 through a universal joint 204; the device fixing rod 301 is connected to the mooring system through the mooring system interface 302; the mooring system interface 302 is connected to the mooring system universal joint 303; the mooring system universal joint 303 is assembled on the mooring system buoy 401; the anchor chain 402 is connected to the mooring system buoy 401, and is also connected to the fixed anchor 403; the fixed anchor 403 is inserted into the seabed. The wave-current turbine 001 in the direction perpendicular to the water wave is connected together by a fixed connecting rod 205, and the fixed connecting rod 205 is fixed to the buoy 203; the wave-current turbine 001 in the direction of the water wave is connected by a universal connecting rod 206, and the universal connecting rod 206 is connected to the universal joint 204 at the corresponding position; the universal joint 204 is assembled with the wave-current turbine 001; the wave-current turbine 001 floats on the sea surface by means of the buoys 203 on both sides thereof; the buoy 203 is connected to the bracket 202 through a connecting device Assembly; the support frame 201 is assembled with the bracket 202 through a connecting device; the impeller 101 is located below the support frame 201, and a generator 102 is arranged inside the wave flow turbine. The generator 102 is connected to the support frame through a threaded hole drilled at a fixed position and is screwed to the bracket 202; the impeller 101 is connected to the support frame through a through hole on the support frame 201, and the rotating shaft 106 of the impeller is designed as a crankshaft, which is assembled with the transmission connecting rod 103, and at the same time, the transmission connecting rod 103 is assembled with the rotating shaft 108 of the generating coil to complete the power transmission.

[0063] The beneficial effects of the present invention are:

[0064] 1) The traditional suspended vertical axis turbine has problems such as low total energy efficiency, high starting speed requirement, poor energy stability and strong volatility under the combined action of waves and currents. The present invention sets multiple turbines along the wave propagation direction, so that each turbine is under the action of waves with different wave heights and wave phases, proposes the concept of overall energy stability of the turbine array, and innovatively designs a horizontal vertical axis suspended turbine array, which uses a reasonable spatial layout to obtain multi-degree-of-freedom wave and tidal energy.

[0065] 2) Integrate different scales of integrated devices appropriately under different working environments. The connection device of the wave flow turbine 001 has a high degree of interchangeability. The universal connecting rod and the fixed connecting rod can be set to different lengths under different working environments to obtain the maximum power generation efficiency.

[0066] 3) Design an innovative tidal energy power generation equipment integrated system, which has little effect on water flow resistance and can ensure structural stability. The connecting rod and the device fixing rod are made of materials with light weight, wear resistance, corrosion resistance, durability and other characteristics. At the same time, the outer surface is painted to prevent rust.

[0067] 4) It is necessary to clean the power generation equipment regularly to prevent marine organisms from attaching and obstructing the flow of water. It is also necessary to prevent floating garbage from being drawn into the rotating power generation equipment and damaging the power generation equipment. The device has relatively few types of parts, and problems between parts are relatively rare, so the maintenance and cleaning difficulty is relatively low.

[0068] 5) Multiple wave-flow turbines are integrated for power generation to ensure relatively stable power and are equipped with power grid-connected devices. After adjustment by the converter, the electric energy enters the interface and reaches the grid. The electric energy is transported through the grid and transmitted to the energy storage power station. It is then transmitted to the interface through the converter and enters the energy storage power station to complete the storage of electric energy.

[0069] 6) The controller can be used to centrally control each module device to realize intelligent remote monitoring. The monitoring equipment data is regularly sent to land to facilitate the study of the corresponding sea environment and other conditions.

[0070] It can be understood that in the embodiment of a wave current integrated array suspended power generation device, the wave current integrated turbine parts support device is a bracket 202, which is welded with a plurality of rectangular tubes (refer to Figure 2 ), and weld the bracket of the universal shaft required for the universal joint 204. The impeller 101 is installed on the support frame 201, and then the rotating shaft 106 of the impeller and the assembly of the support frame 201 are installed in the bracket 202 together.

[0071] The buoy 203 can be installed on both sides of the bracket 202. The number and arrangement of the wave-flow turbines are adjusted according to actual needs, and the corresponding number of universal joints 204 are installed in the corresponding positions. The universal shaft is assembled by installing the fixing rod 301 and the universal joints 204 at the required position (refer to Figure 3 Each universal connecting rod 206 can also be assembled with each universal joint 204, and the fixed connecting rod 205 is installed at the corresponding position of the buoy 203. The assembly of the entire wave-current integrated array suspended power generation device is completed by connecting the wave-current turbine 001 and the mooring system through the device fixed rod 301.

[0072] The functions implemented by each component of the present invention are described as follows:

[0073] 1. The impeller 101 is the working system of the entire device. Under the combined action of waves and currents, accompanied by the continuous alternation of wave crests and troughs, seawater intermittently flows into the impeller structure and causes the turbine to be forced to move. The impeller 101 is connected to a transmission connecting rod 103, and the motion is simultaneously transmitted to the transmission connecting rod 103 during the circular motion of the impeller 101.

[0074] 2. The transmission connecting rod 103 is a power hull device that transmits power from the impeller 101 to the generator 102. The phase difference between the two sets of parallelogram four-bar transmission mechanisms on both sides of the impeller 101 is 180°, which not only ensures the stability of the transmission but also eliminates the stress concentration in the power transmission cycle of the device, and eliminates the problem of the anti-parallelogram mechanism that appears in a set of parallelogram four-bar transmission mechanisms.

[0075] 3. The support frame 201 is indirectly connected to the impeller 101 to provide support for the impeller 101 and ensure that the impeller 101 has a relatively stable dynamic working environment during operation.

[0076] 4. The bracket 202 is the main supporting device for several parts on the wave current turbine.

[0077] 5. Since the working environment of the entire device is the sea surface, the buoy 203 is connected to the support frame 20 2 1. The device fixing rod 301 is connected to the mooring system so that all devices float on the sea surface.

[0078] 6. The individual wave-flow turbines of the wave integrated array suspended power generation device are in different positions during operation, and their positions are constantly changing as seawater intermittently flows into the impeller structure.

[0079] 7. The universal joint shaft provides each wave-stream turbine with the maximum position change space to prevent the huge wave energy from tearing the device, while limiting a certain rotation angle to prevent the device parts from interfering with the wave-stream turbine and colliding.

[0080] 8. The universal connecting rod 206 and the fixed connecting rod 205 connect adjacent wave current turbines to ensure a certain distance between the wave current turbines, ensure that several wave current turbines are at different positions of the wave in one wave cycle, ensure that the overall power generation efficiency is relatively stable, and prevent the wave current turbines from being too close to each other.

[0081] 9. The device fixing rod 301 is also connected by a universal shaft and connected to the universal joint 204 (refer to Figure 3 ). The waves have different directions at different stages, and the angle of the universal shaft can be adjusted so that the waves always act vertically on the impeller 101 to obtain the maximum power generation efficiency.

[0082] 10. The mooring device mainly consists of a fixed anchor 403, an anchor chain 402, an anchor buoy 401, etc. The fixed anchor 403 is inserted on the seabed, one end of the anchor chain 402 is tied to the fixed anchor 403 and the other end is tied to the anchor buoy 401, connecting the fixed anchor 403 and the anchor buoy 401; the main function of the anchor buoy is to fix the sea surface working device, and it is connected with the device that needs to be fixed in position through the universal shaft mechanism and interface on the anchor buoy.

[0083] 11. The main devices of the control and power management module include antenna, battery, microcomputer, various functional interfaces, etc. The antenna can send information signals about the working status of the device and receive control signals; the battery stores the electric energy converted by the power generation device, provides power for the control module and provides necessary preparation for the connection of electric energy to the grid; the microcomputer has a built-in CPU, integrated control panel, interface, etc.; the power interface is connected to the grid through the converter to transmit electric energy; the microcomputer instantaneous power and battery power are combined with the control signal of the energy storage power station to control the converter to adjust the current to meet the transportation needs of the grid.

[0084] The working principle of this embodiment is as follows:

[0085] 1. The fixing rod 301 of the adjustment device makes the wave flow act vertically on the impeller. Under the joint action of the wave flow, accompanied by the continuous alternation of wave crests and troughs, seawater intermittently flows into the impeller structure, causing the turbine to be forced to move. The guide cover is equipped with a power generation device, which completes the conversion of wave flow energy into electrical energy during the circular motion of the impeller.

[0086] 2. There are several wave current turbines inside the device. In a wave current cycle on the sea surface, each wave current turbine is at a different phase of the wave, and each turbine has a different instantaneous power generation efficiency. The wave current energy power generation equipment integration system ensures that the entire device has a relatively stable instantaneous power under the action of a wave current cycle, and the electric energy is further converted through the electric energy conversion device to meet the requirements of power transmission.

[0087] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A wave-current integrated array suspended power generation device, consisting of a plurality of wave-current turbines and an anchoring system; characterized in that: Each set of wave-current turbines is installed on a bracket, including an impeller, a transmission connecting rod mechanism, a generator and a buoy; wherein, after the impeller rotates in a circle, the transmission connecting rod mechanism drives the generator to generate electricity, and the first set of buoys is installed on both sides of the bracket, and the wave-current turbine floats on the sea surface by using the buoys; The transmission connecting rod mechanism comprises a transmission connecting rod, a first end of which is movably connected to the impeller shaft, and a second end of which is movably connected to the shaft of the generator coil, and the impeller shaft is connected to the impeller through a connecting component, wherein a set of transmission connecting rods are respectively installed at both ends of the impeller and the two ends of the generator coil; Several groups of wave-current turbines are arranged in an array. Adjacent wave-current turbines in the first group are connected by a universal connecting rod, which is basically consistent with the wave direction; adjacent wave-current turbines in the second group are connected by a fixed connecting rod, which is basically perpendicular to the wave direction.

2. The power generation device according to claim 1, characterized in that: The angular phase difference between the two groups of transmission connecting rods on both sides of the impeller is 180°.

3. The power generation device according to claim 1, characterized in that: The mooring system comprises a mooring system buoy, an anchor chain and a fixed anchor; wherein, The fixed anchor is arranged on the seabed, and is connected to the second group of buoys through an anchor chain, and the second group of buoys is connected to the group of wave-current turbines through a device fixing rod.

4. The power generation device according to claim 3, characterized in that: The universal connecting rod and the wave-current turbine or the second group of buoys and the device fixing rod are connected via a universal joint.

5. The power generation device according to claim 4, characterized in that: It also includes a support frame, and the impeller is connected to the bracket through the support frame to provide support for the impeller; the rotating shaft of the impeller is a crankshaft.

6. The power generation device according to claim 5, characterized in that: The universal joints of the second group of buoys are connected to the device fixing rods through an anchoring system interface.

7. The power generation device according to any one of claims 4 to 6, characterized in that: The angle of the universal shaft on the universal joint is adjusted so that the wave acts vertically on the impeller to obtain the maximum power generation efficiency.

8. The power generation device according to any one of claims 1 to 3, characterized in that: Each group of wave flow turbines is arranged at a certain distance from each other, forming a rectangular array as a whole.

9. The power generation device according to claim 8, characterized in that: It also includes a device for controlling and managing the power module, including an antenna, a battery, and an interface for a microcomputer.

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