Floating fan-photovoltaic-water turbine multi-energy complementary device capable of reducing yawing motion

Abstract

The invention relates to the technical field of comprehensive utilization of new energy, and discloses a floating fan-photovoltaic-water turbine multi-energy complementary device capable of reducing yawing motion, comprising a single-column support structure for fixing and supporting the whole device; the wind power mechanism is used for generating power through wind power; the hydraulic mechanism is used for generating power through water flow; the hydraulic mechanism comprises a water turbine rotating shaft and a second generator, and one end of the water turbine rotating shaft is fixedly connected to the output end of the second generator; the photovoltaic mechanism is used for generating power through solar energy; the mooring mechanism is used for preventing the device from drifting or moving the position. Power generation is started through operation of the first power generator, at the moment, due to the combined effect of aerodynamic loads and wave current loads, the single-stand-column supporting structure generates yawing motion, resistance is formed through relative motion between water turbine blades and seawater, and the yawing motion of the single-stand-column supporting structure can be effectively restrained; and the effect of reducing the yawing motion response of the vertical shaft floating fan is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of comprehensive utilization of new energy, and particularly to a floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion. Background Art

[0002] With the continuous development of renewable energy, offshore floating wind turbines have gradually become important equipment for wind energy utilization. Among them, offshore floating wind turbines are mainly divided into two categories: horizontal - axis and vertical - axis. The rotating shaft of the vertical - axis wind turbine is perpendicular to the direction of the incoming wind, and this design enables it to have better wind - direction adaptability. However, during the actual operation of the offshore vertical - axis floating wind turbine, a yaw moment is often generated, which will cause the floating support structure to undergo yaw motion.

[0003] The single - column support structure of the existing vertical - axis floating wind turbine has relatively small yaw damping. Under the action of sea waves, if a large yaw motion occurs, it is extremely easy to cause the yaw instability of the wind turbine. This not only affects the safety of the equipment but also directly reduces the power generation efficiency. When the wind turbine is in a swinging state, the force - receiving situation of the blades of the vertical - axis wind turbine becomes complex, thus affecting the normal operation of the wind turbine.

[0004] In addition, traditional vertical - axis wind turbines are particularly vulnerable to the combined effects of ocean currents and wind forces in an environment with unstable wind speeds or large wave heights. The action of diversified forces may exacerbate the yaw motion and increase the maintenance difficulty. Once the wind turbine loses stability, it may cause damage to the equipment itself, affecting its normal service life and maintenance cost.

[0005] In the prior art, although the multi - energy complementary solutions seek to maximize the utilization of wind energy, solar energy, and water energy, they often lack the efficient coordinated operation between power sources and cannot effectively cope with complex ocean environments. In addition, traditional mooring systems usually fail to provide sufficient restoring force in a dynamic environment and cannot prevent the device from drifting or moving, which further exacerbates the occurrence of the yaw phenomenon. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion, and solves the problems of unstable operation and reduced power generation efficiency of the existing floating wind turbine caused by yaw motion.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion, comprising:

[0008] A single - column support structure for fixing and supporting the entire device;

[0009] A wind power mechanism, which is installed on the top of a single-column support structure and is used for generating electricity by wind power;

[0010] A hydraulic power mechanism, which is installed on the immersed section at the bottom of the single-column support structure and is used for generating electricity by water flow;

[0011] The hydraulic power mechanism includes a water turbine rotating shaft and a second generator. One end of the water turbine rotating shaft is fixedly connected to the output end of the second generator. One end of the water turbine rotating shaft is rotatably connected inside the single-column support structure. The other end of the water turbine rotating shaft is fixedly connected with water turbine blades. The outer wall of the second generator is fixedly connected inside the single-column support structure;

[0012] A photovoltaic power mechanism, which is installed on the top of the single-column support structure and is used for generating electricity by solar energy;

[0013] A mooring mechanism, which is installed on the outer wall of the single-column support structure and is used to prevent the device from drifting or moving its position.

[0014] Preferably, a water discharge cone is fixedly connected to one end of the water turbine blade for diffusing water flow.

[0015] Furthermore, the water flow is diffused by the water discharge cone so that the water flow drives the water turbine blade to rotate.

[0016] Preferably, the wind power mechanism includes a fan rotating shaft and a first generator. One end of the fan rotating shaft is fixedly connected to the first generator. One end of the fan rotating shaft is rotatably connected inside the single-column support structure. A plurality of vertical-axis fan blades are fixedly connected to the outer wall of the fan rotating shaft. The outer wall of the first generator is fixedly connected inside the single-column support structure;

[0017] Furthermore, when the incoming wind acts on the vertical-axis fan blades, the vertical-axis fan blades drive the fan rotating shaft to rotate, so that the fan rotating shaft rotates inside the single-column support structure. The rotation of the fan rotating shaft drives the first generator to generate electricity, achieving the effect of generating electricity by wind power.

[0018] Preferably, the photovoltaic power mechanism includes photovoltaic panels. The lower surfaces of a plurality of the photovoltaic panels are fixedly connected to the upper surface of the single-column support structure;

[0019] Furthermore, a plurality of photovoltaic panels are installed on the top of the single-column support structure, and the photovoltaic panels generate electricity when sunlight shines on them.

[0020] Preferably, the photovoltaic panels are arranged around the fan rotating shaft;

[0021] Furthermore, by installing a plurality of photovoltaic panels, the contact area with sunlight is increased, thereby improving the power generation efficiency.

[0022] Preferably, the mooring mechanism includes mooring cables, and one ends of a plurality of the mooring cables are fixedly connected to the outer wall of the single-column support structure;

[0023] Further, by connecting the single-column support structure through a plurality of mooring cables, the single-column support structure can be kept stable in wind and waves and will not move.

[0024] Preferably, a first support plate is fixedly connected to the inner wall of the single-column support structure, and the upper surface of the first support plate is fixedly connected to the lower surface of the first generator.

[0025] Preferably, a partition is fixedly connected to the inside of the single-column support structure, and an energy storage device is fixedly connected to the upper surface of the partition;

[0026] Further, the energy storage device can store the electricity generated by the photovoltaic panels, the first generator and the second generator. The inside of the single-column support structure is separated by the first support plate and the partition, achieving the effect of protecting the energy storage device.

[0027] Preferably, a counterweight is fixedly connected to the lower surface of the partition, and the outer wall of the counterweight is fixedly connected to the inner wall of the single-column support structure.

[0028] Preferably, a second support plate is fixedly connected to the inside of the single-column support structure, the upper surface of the second support plate is fixedly connected to the lower surface of the counterweight, and the lower surface of the second support plate is fixedly connected to the upper surface of the second generator;

[0029] Further, one end is immersed in water by the counterweight between the partition and the second support plate.

[0030] The present invention provides a floating wind turbine-photovoltaic-hydroturbine multi-energy complementary device that can reduce yaw motion. It has the following beneficial effects:

[0031] 1. When the first generator operates to generate electricity in the present invention, due to the combined action of the aerodynamic load and the wave-current load at this time, the single-column support structure generates yaw motion. By the relative motion between the hydroturbine blades and the seawater to form resistance, the yaw motion of the single-column support structure can be effectively suppressed, achieving the effect of reducing the yaw motion response of the vertical-axis floating wind turbine.

[0032] 2. When passing through the vertical-axis wind turbine blades in the present invention, the vertical-axis wind turbine blades drive the wind turbine rotating shaft to rotate, driving the first generator to generate electricity. Then, the seawater acts on the hydroturbine blades, causing the hydroturbine blades to drive the hydroturbine rotating shaft to rotate, driving the second generator, and making the second generator operate to generate electricity as a supplement to wind energy, realizing multi-energy complementarity. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a perspective view of the present invention;

[0034] Figure 2 is a schematic diagram of the internal structure of the present invention.

[0035] Among them, 1. Vertical axis wind turbine blade; 2. Wind turbine rotating shaft; 3. Photovoltaic panel; 4. Single-column support structure; 5. Water turbine rotating shaft; 6. Water turbine blade; 7. Drain cone; 8. Mooring cable; 9. First generator; 10. First support plate; 11. Energy storage device; 12. Partition board; 13. Counterweight; 14. Second support plate; 15. Second generator. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to the attached Figure 1 - attached Figure 2 , the embodiment of the present invention provides a floating wind turbine-photovoltaic-water turbine multi-energy complementary device that can reduce yaw motion, including;

[0038] The single-column support structure 4 is used to fix and support the entire device;

[0039] The wind power mechanism is installed on the top of the single-column support structure 4 and is used to generate electricity by wind power; the wind power mechanism includes a wind turbine rotating shaft 2 and a first generator 9. One end of the wind turbine rotating shaft 2 is fixedly connected to the first generator 9. One end of the wind turbine rotating shaft 2 is rotatably connected to the inside of the single-column support structure 4. A plurality of vertical axis wind turbine blades 1 are fixedly connected to the outer wall of the wind turbine rotating shaft 2. The outer wall of the first generator 9 is fixedly connected to the inside of the single-column support structure 4;

[0040] Specifically, when the incoming wind acts on the vertical axis wind turbine blade 1, the vertical axis wind turbine blade 1 drives the wind turbine rotating shaft 2 to rotate, so that the wind turbine rotating shaft 2 rotates inside the single-column support structure 4. The rotation of the wind turbine rotating shaft 2 drives the first generator 9 to generate electricity, achieving the effect of generating electricity by wind power.

[0041] A hydraulic mechanism, which is installed at the bottom immersed section of the single-column support structure 4 and is used for generating electricity through water flow; the hydraulic mechanism includes a water turbine rotating shaft 5 and a second generator 15. One end of the water turbine rotating shaft 5 is fixedly connected to the output end of the second generator 15. One end of the water turbine rotating shaft 5 is rotatably connected inside the single-column support structure 4. The other end of the water turbine rotating shaft 5 is fixedly connected with a water turbine blade 6. The outer wall of the second generator 15 is fixedly connected inside the single-column support structure 4; a water discharge cone 7 is fixedly connected to one end of the water turbine blade 6 for diffusing water flow;

[0042] Specifically, power generation starts with the operation of the first generator 9. At this time, due to the combined action of the aerodynamic load and the wave-current load, the single-column support structure 4 generates yaw motion. The relative motion between the water turbine blade 6 and the seawater forms a resistance, which can effectively suppress the yaw motion of the single-column support structure 4. When the seawater acts on the water turbine blade 6, the water turbine blade 6 drives the water turbine rotating shaft 5 to rotate, so that the water turbine rotating shaft 5 rotates inside the single-column support structure 4 and drives the second generator 15, causing the second generator 15 to operate for power generation. Then, the water discharge cone 7 diffuses the water flow to make the water flow push the water turbine blade 6 to rotate.

[0043] A photovoltaic mechanism, which is installed on the top of the single-column support structure 4 and is used for generating electricity through solar energy; the photovoltaic mechanism includes photovoltaic panels 3, and the lower surfaces of multiple photovoltaic panels 3 are all fixedly connected to the upper surface of the single-column support structure 4; the photovoltaic panels 3 are arranged around the fan rotating shaft 2;

[0044] Specifically, multiple photovoltaic panels 3 are installed on the top of the single-column support structure 4, and when sunlight shines on the photovoltaic panels 3, the photovoltaic panels 3 generate electricity.

[0045] A mooring mechanism, which is installed on the outer wall of the single-column support structure 4 and is used to prevent the device from drifting or moving; the mooring mechanism includes mooring cables 8, and one ends of multiple mooring cables 8 are all fixedly connected to the outer wall of the single-column support structure 4;

[0046] Specifically, multiple mooring cables 8 are connected to the single-column support structure 4, so that the single-column support structure 4 can remain stable in the wind and waves and will not move.

[0047] A first support plate 10 is fixedly connected to the inner wall of the single-column support structure 4, and the upper surface of the first support plate 10 is fixedly connected to the lower surface of the first generator 9; a partition plate 12 is fixedly connected inside the single-column support structure 4, and an energy storage device 11 is fixedly connected to the upper surface of the partition plate 12;

[0048] Specifically, the energy storage device 11 can store the electricity generated by the photovoltaic panels 3, the first generator 9, and the second generator 15. The interior of the single-column support structure 4 is separated by the first support plate 10 and the partition plate 12, achieving the effect of protecting the energy storage device 11.

[0049] A counterweight 13 is fixedly connected to the lower surface of the partition plate 12, and the outer wall of the counterweight 13 is fixedly connected to the inner wall of the single-column support structure 4; a second support plate 14 is fixedly connected to the interior of the single-column support structure 4, the upper surface of the second support plate 14 is fixedly connected to the lower surface of the counterweight 13, and the lower surface of the second support plate 14 is fixedly connected to the upper surface of the second generator 15;

[0050] Specifically, one end of the counterweight 13 between the partition plate 12 and the second support plate 14 is immersed in water, making the single-column support structure 4 perpendicular to the water surface. The depth of the single-column support structure 4 sinking into the water is controlled by adjusting the number of counterweights 13.

[0051] Working principle: First, when the incoming flow wind acts on the vertical-axis wind turbine blade 1, the vertical-axis wind turbine blade 1 drives the wind turbine rotating shaft 2 to rotate, and the wind turbine rotating shaft 2 rotates inside the single-column support structure 4. The rotation of the wind turbine rotating shaft 2 drives the first generator 9 to generate electricity. When the first generator 9 starts operating to generate electricity, due to the combined action of the aerodynamic load and the wave-current load, the single-column support structure 4 generates yaw motion. The relative motion between the water turbine blade 6 and the seawater forms a resistance, which can effectively suppress the yaw motion of the single-column support structure 4. The water flow is diffused by the drain cone 7 to push the water turbine blade 6 to rotate, and the water turbine blade 6 drives the water turbine rotating shaft 5 to rotate. The water turbine rotating shaft 5 rotates inside the single-column support structure 4 and drives the second generator 15, making the second generator 15 operate to generate electricity. Multiple photovoltaic panels 3 are installed on the top of the single-column support structure 4, and the photovoltaic panels 3 generate electricity when sunlight shines on them. The energy storage device 11 can store the electricity generated by the photovoltaic panels 3, the first generator 9, and the second generator 15. The interior of the single-column support structure 4 is separated by the first support plate 10 and the partition plate 12, achieving the effect of protecting the energy storage device 11. One end of the counterweight 13 between the partition plate 12 and the second support plate 14 is immersed in water, making the single-column support structure 4 perpendicular to the water surface. The depth of the single-column support structure 4 sinking into the water is controlled by adjusting the number of counterweights 13. The single-column support structure 4 is connected by multiple mooring cables 8, so that the single-column support structure 4 can remain stable in the wind and waves without moving its position.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion, characterized in that, Comprising; A single-column support structure (4) for fixing and supporting the entire device; A wind power mechanism installed at the top of the single-column support structure (4) for generating electricity by wind; A hydraulic power mechanism installed at the immersed section at the bottom of the single-column support structure (4) for generating electricity by water flow; The hydraulic power mechanism includes a water turbine rotating shaft (5) and a second generator (15). One end of the water turbine rotating shaft (5) is fixedly connected to the output end of the second generator (15). One end of the water turbine rotating shaft (5) is rotatably connected inside the single-column support structure (4). The other end of the water turbine rotating shaft (5) is fixedly connected with a water turbine blade (6). The outer wall of the second generator (15) is fixedly connected inside the single-column support structure (4); A photovoltaic power mechanism installed at the top of the single-column support structure (4) for generating electricity by solar energy; A mooring mechanism installed on the outer wall of the single-column support structure (4) for preventing the device from drifting or moving positions.

2. The floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion according to claim 1, characterized in that, One end of the water turbine blade (6) is fixedly connected with a water discharge cone (7) for diffusing water flow.

3. A floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion according to claim 1, characterized in that, The wind power mechanism includes a fan rotating shaft (2) and a first generator (9). One end of the fan rotating shaft (2) is fixedly connected to the first generator (9). One end of the fan rotating shaft (2) is rotatably connected inside the single-column support structure (4). The outer wall of the fan rotating shaft (2) is fixedly connected with a plurality of vertical-axis fan blades (1). The outer wall of the first generator (9) is fixedly connected inside the single-column support structure (4).

4. A floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion according to claim 1, characterized in that, The photovoltaic power mechanism includes photovoltaic panels (3). The lower surfaces of the plurality of photovoltaic panels (3) are all fixedly connected to the upper surface of the single-column support structure (4).

5. A floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion according to claim 4, characterized in that, The photovoltaic panels (3) are arranged around the fan rotating shaft (2).

6. The floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion according to claim 1, wherein, The mooring mechanism includes mooring cables (8). One ends of the plurality of mooring cables (8) are all fixedly connected to the outer wall of the single-column support structure (4).

7. A floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion according to claim 1, characterized in that, The inner wall of the single-column support structure (4) is fixedly connected with a first support plate (10). The upper surface of the first support plate (10) is fixedly connected to the lower surface of the first generator (9).

8. A floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion according to claim 1, characterized in that, An energy storage device (11) is fixedly connected to the upper surface of a partition plate (12) inside the single-column support structure (4).

9. A floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion according to claim 8, characterized in that, A counterweight block (13) is fixedly connected to the lower surface of the partition plate (12). The outer wall of the counterweight block (13) is fixedly connected to the inner wall of the single-column support structure (4).

10. A floating wind turbine - photovoltaic - water turbine multi - energy complementary device capable of reducing yaw motion according to claim 1, characterized in that, A second support plate (14) is fixedly connected to the inside of the single-column support structure (4). The upper surface of the second support plate (14) is fixedly connected to the lower surface of the counterweight block (13). The lower surface of the second support plate (14) is fixedly connected to the upper surface of the second generator (15).

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