阅读说明：本技术 一种联合风能和洋流能发电的浮式平台 (Floating platform for generating electricity by combining wind energy and ocean current energy ) 是由 霍仕环 邹荔兵 张启应 段博志 孙加鹏 卢军 刘凡鹰 夏宗朝 赵春雨 柳胜举 于 2021-01-29 设计创作，主要内容包括：本发明公开了一种联合风能和洋流能发电的浮式平台,包括浮式基础、上风向浮筒、下风向浮筒、洋流能发电装置、翼型截面塔架、风力发电机组主机、风轮；浮式基础包括三个浮式基础支臂；三个浮式基础支臂的一端连接,形成Y型；一个浮式基础支臂的上部安装有上风向浮筒；另外两个浮式基础支臂的上部分别安装有下风向浮筒；三个浮式基础支臂连接处上部斜向布置翼型截面塔架；下风向浮筒对应的浮式基础支臂下部及三个浮式基础支臂连接处的下部安装有洋流能发电装置；所述翼型截面塔架顶部安装有两个风力发电机组主机；所述两个风力发电机组主机上分别安装有一个风轮；浮式基础支臂内部中空,设置有电缆；上风向浮筒内部安装有高压滑环和配电设备。(The invention discloses a floating platform for generating power by combining wind energy and ocean current energy, which comprises a floating foundation, an upwind buoy, a downwind buoy, an ocean current energy generating device, a wing-shaped section tower, a wind generating set host and a wind wheel, wherein the upwind buoy is arranged on the floating foundation; the floating foundation comprises three floating foundation support arms; one ends of the three floating foundation support arms are connected to form a Y shape; the upper part of a floating foundation support arm is provided with an upwind direction buoy; the upper parts of the other two floating foundation support arms are respectively provided with a downwind buoy; the upper part of the joint of the three floating foundation support arms is obliquely provided with an airfoil section tower; the lower parts of the floating foundation support arms corresponding to the downwind floating cylinders and the lower parts of the joints of the three floating foundation support arms are provided with ocean current energy power generation devices; two wind generating set main machines are installed at the top of the tower frame with the wing-shaped section; the two wind generating set main machines are respectively provided with a wind wheel; the floating foundation support arm is hollow and is provided with a cable; and a high-voltage slip ring and power distribution equipment are arranged in the upwind direction buoy.)

1. A floating platform for generating power by combining wind energy and ocean current energy is characterized by comprising a floating foundation (1), an upwind buoy (3), a downwind buoy (5), an ocean current energy power generation device (6), a wing-shaped section tower (7), a wind generating set host (8) and a wind wheel (9);

the floating foundation (1) comprises three floating foundation support arms (2); one ends of the three floating foundation support arms (2) are connected to form a Y shape; an upwind direction buoy (3) is arranged at the upper part of one floating foundation support arm (2); the upper parts of the other two floating foundation support arms (2) are respectively provided with a downwind buoy (5); the upper part of the joint of the three floating foundation support arms (2) is obliquely provided with an airfoil section tower (7);

the lower parts of the floating foundation support arms (2) corresponding to the downwind buoys (5) and the lower parts of the joints of the three floating foundation support arms (2) are provided with ocean current energy power generation devices (6); the main machines of the three ocean current energy power generation devices (6) are respectively arranged inside the downwind buoy (5) and inside the bottom section of the wing-shaped section tower (7); two wind generating set main machines (8) are installed at the top of the wing section tower (7); a wind wheel (9) is respectively arranged on the two wind generating set main machines (8);

the floating foundation support arm (2) is hollow and is provided with a cable; and a high-voltage slip ring and power distribution equipment are arranged in the upwind buoy (3).

2. A combined wind and ocean current energy power generating floating platform according to claim 1 wherein the ocean current energy power generating means (6) is fixed to the lower part of the floating foundation arm (2) using flange and bolt connections.

3. A combined wind and ocean current energy power generating floating platform according to claim 1 wherein a yaw bearing (11) is mounted between the floating foundation boom (2) and the ocean current energy power generating means (6).

4. A combined wind and ocean current power generating floating platform according to claim 1 wherein the electrical energy generated by the wind turbine generator unit (8) and the ocean current power generating unit (6) is sent by sea cables.

5. A combined wind and ocean current energy power generating floating platform according to claim 1 wherein the ocean current energy power generating means (6) is of horizontal or vertical axis type.

6. A combined wind and ocean current energy power generating floating platform according to claim 1 or 5, wherein a single ocean current energy power generating device or a plurality of ocean current energy power generating devices arranged in an array can be installed on the floating foundation arm (2).

7. A combined wind and ocean current energy power generating floating platform according to claim 1 wherein fairings are mounted on the ocean current energy power generating means (6).

8. A combined wind and ocean current power generating floating platform according to claim 1 wherein the floating foundation arms (2) are made of concrete.

9. A combined wind and ocean current power generating floating platform according to claim 1 wherein the top of the aerofoil section tower (7) is fixed to the floating foundation (1) by steel strands (10).

10. A combined wind and ocean current power generating floating platform according to claim 1 wherein the upwind buoy (3) is fitted with a single point mooring system (4) on the lower portion of the floating foundation arm (2).

Technical Field

The invention relates to the field of offshore power generation, in particular to a floating platform for generating power by combining wind energy and ocean current energy.

Background

The conventional wind turbine generator system structure is a single wind wheel active yawing system, and is not combined with other energy forms. The traditional wind generating set is an upwind generating set, the floating type platform is a multi-point anchoring platform, and the combined power generation with ocean current energy is still in a research stage.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art and provides a floating platform for generating electricity by combining wind energy and ocean current energy. The combined power generation of ocean current energy and wind energy is realized, the construction cost of the ocean current energy power generation device is reduced, and the absorption of the ocean current energy is more stable.

The purpose of the invention can be realized by the following technical scheme:

a floating platform for generating power by combining wind energy and ocean current energy comprises a floating foundation, an upwind buoy, a downwind buoy, an ocean current energy power generation device, a wing-shaped section tower, a wind generating set host and a wind wheel;

the floating foundation comprises three floating foundation support arms; one ends of the three floating foundation support arms are connected to form a Y shape; an upwind direction buoy is arranged at the upper part of one floating foundation support arm; the upper parts of the other two floating foundation support arms are respectively provided with a downwind buoy; the upper parts of the joints of the three floating foundation support arms are obliquely provided with wing section towers;

the lower parts of the floating foundation support arms corresponding to the downwind floating cylinders and the lower parts of the joints of the three floating foundation support arms are provided with ocean current energy power generation devices; the main machines of the three ocean current energy power generation devices are respectively arranged inside the downwind buoy and inside the bottom section of the wing-shaped section tower; two wind generating set main machines are installed at the top of the tower frame with the wing-shaped section; the two wind generating set main machines are respectively provided with a wind wheel;

the floating foundation support arm is hollow and is provided with a cable; and a high-voltage slip ring and power distribution equipment are arranged in the upwind direction buoy.

Furthermore, the ocean current energy power generation device is connected and fixed at the lower part of the floating foundation support arm by using a flange and a bolt.

Furthermore, a yaw bearing is arranged between the floating foundation support arm and the ocean current energy power generation device. The yaw bearing can enable the ocean current energy generating device to always face the ocean current flow direction, and stable power generation of the ocean current energy generating device is guaranteed.

Furthermore, the electric energy generated by the wind generating set main machine and the ocean current energy generating device main machine is sent out by the submarine cable.

Further, the ocean current energy power generation device adopts a horizontal shaft type or a vertical shaft type.

Furthermore, a single ocean current energy power generation device or a plurality of ocean current energy power generation devices arranged in an array can be arranged on the floating foundation support arm. The ocean current energy power generation device adopting a plurality of arrays can further make full use of ocean current energy and improve the power generation efficiency.

Furthermore, a flow guide cover is arranged on the ocean current energy power generation device. The air guide cover has the functions of guiding and gathering energy, so that the energy of water flow passing through the ocean current energy power generation device is more concentrated, and the energy gathering effect is higher.

Furthermore, the floating foundation support arm is made of concrete.

Furthermore, the tower top of the wing-shaped section tower and the floating foundation support arm are fixedly connected through a steel strand. The steel strand can play the effect of fixed airfoil section pylon.

Furthermore, a single-point anchoring system is arranged at the lower part of the floating foundation support arm corresponding to the upwind buoy. The single point mooring system may moor the vessel at a given location, holding it in a predetermined position.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the ocean current energy power generation device and the wind energy power generation device share the same floating foundation, and the combined power generation of the ocean current energy and the wind energy is realized.

2. The ocean current energy power generation device is simple in structure, the structure of the floating foundation is fully utilized, the anchoring system is shared, and the construction cost of the ocean current energy power generation device is greatly reduced.

3. The ocean current energy power generation device is located in a deeper position below the sea level, so that the influence of sea waves is avoided, and the absorption of the ocean current energy is more stable.

4. Wind energy and ocean current energy share one set of power distribution equipment, and development cost is effectively reduced.

Drawings

FIG. 1 is an elevation view of a floating platform for combined wind and ocean current power generation according to an embodiment of the present invention;

FIG. 2 is a perspective view of a floating platform for combined wind and ocean current power generation according to an embodiment of the present invention;

fig. 3 is a structural diagram of a downwind buoy and an ocean current energy power generation device in an embodiment of the invention.

Wherein: 1: floating foundation, 2: floating foundation support arm, 3: upwind buoy, 4: single point mooring system, 5: downwind buoy, 6: ocean current energy power generation device, 7: aerofoil section tower, 8: wind generating set host computer, 9: wind wheel, 10: steel strand, 11: and a yaw bearing.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

As shown in fig. 1-2, a floating platform for generating power by combining wind energy and ocean current energy comprises a floating foundation 1, an upwind buoy 3, a downwind buoy 5, an ocean current energy power generation device 6, a wing-shaped section tower 7, a wind generating set main machine 8 and a wind wheel 9. The floating foundation 1 comprises three floating foundation support arms 2, the floating foundation support arms 2 are hollow, and cables are arranged in the hollow interiors. One ends of the three floating foundation support arms 2 are connected to form a Y shape. An upwind buoy 3 is arranged at the upper part of the outer end of one floating foundation support arm 2, a downwind buoy 5 is arranged at the upper part of the outer end of the other two floating foundation support arms 2 respectively, an ocean current energy power generation device 6 is arranged at the lower part of the floating foundation support arm 2 corresponding to the downwind buoy 5 and the lower part of the joint of the three floating foundation support arms 2, and a wing-shaped section tower 7 is obliquely arranged at the upper part of the joint of the three floating foundation support arms 2. The main machines of the three ocean current energy generating devices 6 are respectively arranged inside the two downwind buoys 5 and the bottom section of the wing-shaped section tower 7. The wing section tower 7 is Y-shaped, two wind generating set main machines 8 are installed at the top of the Y-shaped, and a wind wheel 9 is installed on the output shafts of the two wind generating set main machines 8 respectively. The upwind direction buoy 3 is internally provided with a high-voltage slip ring and power distribution equipment for integrating electric energy generated by the ocean current power generation device and the wind power generation device. Electric energy generated by the three ocean current energy power generation devices 6 and electric energy generated by the two wind generating set main machines 8 are converged together, the electric energy is connected to a high-voltage slip ring and a power distribution device inside the upwind buoy 3 through a cable arranged inside the floating foundation support arm, and the electric energy is sent out through a submarine cable. The top of the wing section tower 7 is connected with the floating platform 1 through a steel strand 10, and the wing section tower is fixed. The lower part of the floating foundation arm 2 corresponding to the upwind buoy 3 is provided with a single-point anchoring system 4, and the single-point anchoring system 4 can anchor the floating platform at a specified position so as to keep the floating platform at a preset position.

The ocean current energy generating device 6 is fixed on the lower part of the floating foundation support arm 2 by using a flange and a bolt connection. As shown in fig. 3, a yaw bearing 11 is installed between the floating foundation support arm 2 corresponding to the downwind buoy 5 and the ocean current energy power generation device 6, and the yaw bearing 11 can enable the ocean current energy power generation device 6 to always face the ocean current flow direction from the front side, thereby ensuring the stable power generation of the ocean current energy power generation device 6.

The floating foundation 1 is provided with 3 ocean current energy power generation device installation positions in total, each installation position can be provided with a single ocean current energy power generation device, and a plurality of ocean current energy power generation devices arranged in arrays can be installed, and the ocean current energy power generation devices arranged in the arrays can further fully utilize the ocean current energy, so that the power generation efficiency is improved. The rotating shaft of the ocean current energy generating device 6 can be parallel or vertical to the water flow direction, namely a horizontal shaft type ocean current energy generating device or a vertical shaft type ocean current energy generating device can be selected. The ocean current energy power generation device 6 can be further provided with a flow guide cover, and the flow guide cover has the functions of flow guide and energy collection, so that the water flow energy passing through the ocean current energy power generation device 6 is more concentrated, and the energy obtaining effect is higher. The floating foundation support arm 2 is made of concrete.

The working principle of the invention is as follows: wind energy is converted into electric energy by the wind wheel and the wind generating set main machine, the ocean current energy generating device provided with the self-yaw system is positioned below the sea level, the flow direction of ocean current is tracked, the ocean current energy is absorbed, and the ocean current energy is converted into the electric energy. The electric energy generated by the floating foundation support arm and the high-voltage slip ring is integrated with the distribution equipment through the cable arranged in the floating foundation support arm, and finally the integrated electric energy is sent out through the submarine cable.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.