Floating type wind power generation system

Abstract

The utility model provides a floating type wind power generation system, and relates to the technical field of offshore wind power. The floating type wind power generation system comprises a floating seat, the floating seat is divided into a windward area and a leeward area in the front-back direction, and the windward area is provided with a left front fan and a right front fan which are evenly arranged in the left-right direction at intervals and are in the upwind direction; the leeward area is provided with a downwind type rear draught fan, and the rear draught fan is located between the left front draught fan and the right front draught fan in the left-right direction. According to the floating type wind power generation system, by dividing the front area and the rear area of the floating base and reasonably arranging different types, numbers and arrangement modes of the draught fans in all the areas, the capacity of unit structural weight and the manufacturing cost of unit kilowatt of the floating type wind power generation system are improved; the wind resource utilization efficiency and the power generation efficiency of the floating type wind power generation system are effectively improved; meanwhile, the floating type wind power generation system adopts a combined type fan, fan type selection adapting to different working conditions can be matched, and the adaptability of the whole fan combination to the sea wind environment is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power, in particular to a floating wind power generation system. Background Art

[0002] With the development of offshore wind power resources and the progress of technology, the floating offshore wind power generation system has become an important technical direction for developing deep - sea and far - sea wind power resources due to its strong adaptability to marine conditions.

[0003] The existing floating offshore wind power systems mainly consist of single wind turbines, specifically, they are simple combinations of conventional wind turbine units and floating body structures, which have disadvantages such as low overall installed capacity, low power generation efficiency, and poor environmental adaptability. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a floating wind power generation system to solve the technical problems of the existing floating offshore wind power systems, such as low overall installed capacity, low power generation efficiency, and poor environmental adaptability.

[0005] To solve the above problems, the utility model provides a floating wind power generation system, including a floating base. The floating base is divided into a windward area and a leeward area along the front - rear direction. The windward area is provided with a left front wind turbine and a right front wind turbine arranged at intervals in the left - right direction and in an up - wind pattern; the leeward area is provided with a down - wind rear wind turbine, and along the left - right direction, the rear wind turbine is located between the left front wind turbine and the right front wind turbine.

[0006] Optionally, the floating base includes a connecting part, the connecting part is connected with a left front horizontal arm extending left - frontward, a right front horizontal arm extending right - frontward, and a rear horizontal arm extending backward. The outer end of the left front horizontal arm is provided with a left front floating body, the outer end of the right front horizontal arm is provided with a right front floating body, and the outer end of the rear horizontal arm is provided with a rear floating body;

[0007] The connecting part is provided with a left front support beam extending left - frontward from bottom to top and a right front support beam extending right - frontward. The rear floating body is provided with a rear support beam extending upward. The left front wind turbine is arranged at the top of the left front support beam, the right front wind turbine is arranged at the top of the right front support beam, and the rear wind turbine is arranged at the top of the rear support beam.

[0008] Optionally, a first traction rope is connected between the top beam of the left front support beam and the top beam of the right front support beam, a second traction rope is connected between the top beam of the left front support beam and the left front floating body, a third traction rope is connected between the top beam of the left front support beam and the rear support beam, a fourth traction rope is connected between the top beam of the right front support beam and the right front floating body, and a fifth traction rope is connected between the top beam of the right front support beam and the rear support beam.

[0009] Optionally, the rear support beam includes a bearing platform fixedly arranged on the rear floating body and a support rod fixedly arranged on the top of the bearing platform. One end of the third towing rope away from the left front support beam is connected to the top platform of the bearing platform, and one end of the fifth towing rope away from the right front support beam is connected to the top platform of the bearing platform.

[0010] Optionally, the projections of the left front floating body and the left front support beam onto the target horizontal plane are a first projection and a second projection respectively, and the left front end of the second projection is located on the left front side of the first projection;

[0011] And / or, the projections of the right front floating body and the right front support beam onto the target horizontal plane are a third projection and a fourth projection respectively, and the right front end of the fourth projection is located on the right front side of the third projection.

[0012] Optionally, the projection of the left front horizontal arm onto the target horizontal plane is a fifth projection, the axis of the second projection coincides with the axis of the fifth projection, and the axis of the second projection passes through the center of the first projection;

[0013] And / or, the projection of the right front horizontal arm onto the target horizontal plane is a sixth projection, the axis of the fourth projection coincides with the axis of the sixth projection, and the axis of the fourth projection passes through the center of the third projection.

[0014] Optionally, the left front wind turbine, the right front wind turbine and the rear wind turbine are arranged in an equilateral triangle.

[0015] Optionally, the left front wind turbine, the right front wind turbine and the rear wind turbine are all provided with a deviation correction system.

[0016] Optionally, the floating wind power generation system includes:

[0017] Front windward mode: the wind wheels of the left front wind turbine face forward, the wind wheels of the right front wind turbine face forward, and the wind wheels of the rear wind turbine face backward;

[0018] Left front windward mode: the wind wheels of the left front wind turbine deflect left by a first preset angle, the wind wheels of the right front wind turbine face forward, and the wind wheels of the rear wind turbine deflect right by a first preset angle;

[0019] Right front windward mode: the wind wheels of the left front wind turbine face forward, the wind wheels of the right front wind turbine deflect right by a second preset angle, and the wind wheels of the rear wind turbine deflect left by a second preset angle.

[0020] Optionally, a first reinforcing rib is connected between the left front horizontal arm and the right front horizontal arm and / or between the left front horizontal arm and the rear horizontal arm and / or between the right front horizontal arm and the rear horizontal arm;

[0021] And / or, a second reinforcing rib is connected between the bearing platform and the rear horizontal arm;

[0022] And / or, a third reinforcing rib is connected between the left front floating body and the left front horizontal arm and / or between the right front floating body and the right front horizontal arm and / or between the rear floating body and the rear horizontal arm.

[0023] In the floating wind power generation system provided by the present utility model, the floating base is divided into a windward area and a leeward area along the front-rear direction. An upwind type left front fan and a right front fan with a larger windward area and higher power generation efficiency are arranged in the windward area, and a downwind type rear fan capable of autonomously adjusting the steering is arranged in the area between the left front fan and the right front fan in the leeward area. By dividing the front and rear areas of the floating base and reasonably arranging different types, numbers, and arrangement methods of the fans in each area, the capacity per unit structural weight and the cost per kilowatt of the floating wind power generation system are improved, and the utilization efficiency of wind resources and the power generation efficiency of the floating wind power generation system are effectively improved; at the same time, the floating wind power generation system adopts a combined fan, which can be matched with fan models suitable for different working conditions, making the overall fan combination more adaptable to the sea breeze environment, thereby broadening the boundary working conditions, increasing the available power generation amount and the overall power generation efficiency. Description of the Drawings

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 An isometric view of the floating wind power generation system provided by the embodiment of the present utility model in the front windward mode;

[0026] Figure 2 A left view of the floating wind power generation system provided by the embodiment of the present utility model in the front windward mode;

[0027] Figure 3 A front view of the floating wind power generation system provided by the embodiment of the present utility model in the front windward mode;

[0028] Figure 4 A top view of the floating wind power generation system provided by the embodiment of the present utility model in the front windward mode;

[0029] Figure 5 A top view of the floating wind power generation system provided by the embodiment of the present utility model in the left front windward mode.

[0030] Description of the reference numerals in the drawings:

[0031] 100 - floating base; 110 - connecting part; 120 - left front horizontal arm; 130 - right front horizontal arm; 140 - rear horizontal arm; 150 - left front floating body; 160 - right front floating body; 170 - rear floating body; 181 - first reinforcing rib; 182 - second reinforcing rib; 183 - third reinforcing rib; 210 - left front wind turbine; 220 - right front wind turbine; 230 - rear wind turbine; 310 - left front support beam; 320 - right front support beam; 330 - rear support beam; 331 - bearing platform; 332 - support rod; 400 - traction mechanism; 410 - first traction rope; 420 - second traction rope; 430 - third traction rope; 440 - fourth traction rope; 450 - fifth traction rope. Detailed implementation manners

[0032] The technical solutions of the present utility model will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model belong to the scope of protection of the present utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] This embodiment provides a floating wind power generation system, as Figures 1 - 3As shown in the figure, it includes a floating base 100. The floating base 100 is divided into a windward area and a leeward area in the front-rear direction. The windward area is provided with a left front fan 210 and a right front fan 220 that are arranged at intervals in the left-right direction and are in the upwind type; the leeward area is provided with a rear fan 230 in the downwind type, and in the left-right direction, the rear fan 230 is located between the left front fan 210 and the right front fan 220.

[0036] Initially, the floating base 100 is placed on the sea surface in a floating state. The left front fan 210, the right front fan 220, and the rear fan 230 are located above the sea surface under the floating action of the floating base 100. Among them, based on the direction of the sea airflow, the area of the floating base 100 located upstream of the airflow is used as the windward area, and the area located downstream of the airflow is used as the leeward area. Taking the upstream of the airflow as the front and the downstream as the rear, and using the front-to-back facing of the floating base 100 as the reference to distinguish left and right. Among them, the left front fan 210 and the right front fan 220 arranged in the windward area are arranged at intervals in the left-right direction, and the wind wheels of both face the upstream of the airflow; the rear fan 230 arranged in the leeward area is located between the left front fan 210 and the right front fan 220 in the left-right direction, and the wind wheel of the rear fan 230 faces the downstream of the airflow.

[0037] During use, the airflow blows head-on to the wind wheels of the left front fan 210 and the right front fan 220, and at the same time blows backward through the space between the two to the wind wheel of the rear fan 230. The rotation of the wind wheel drives the generator of the corresponding fan to generate electricity; among them, the rear fan 230 adopts the downwind type. When the direction of the airflow deflects, the wind wheel of the rear fan 230 can adjust the steering automatically with the airflow, so that the wind wheel always maintains a better angle with the airflow, thereby improving the power generation efficiency of the rear fan 230 and this floating wind power generation system.

[0038] In the floating wind power generation system provided by this embodiment, the floating base 100 is divided into a windward area and a leeward area in the front-rear direction. In the windward area, an upwind type left front fan 210 and a right front fan 220 with a larger windward area and higher power generation efficiency are set. In the leeward area, a downwind type rear fan 230 that can adjust the steering automatically is set in the area between the left front fan 210 and the right front fan 220. By dividing the front and rear areas of the floating base 100 and reasonably arranging the different types, numbers, and arrangement methods of the fans in each area, the capacity per unit structural weight and the cost per unit kilowatt of the floating wind power generation system are improved, and the utilization efficiency and power generation efficiency of the floating wind power generation system for wind resources are effectively improved; at the same time, the floating wind power generation system adopts a combined fan, which can be matched with fan models suitable for different working conditions, making the overall fan combination more adaptable to the sea breeze environment, thereby broadening the boundary working conditions and improving the available power generation and the overall power generation efficiency.

[0039] Specifically, in this embodiment, as Figure 1 and Figure 4As shown in the figure, the floating base 100 includes a connecting portion 110. The connecting portion 110 is connected with a left front horizontal arm 120 extending forward to the left, a right front horizontal arm 130 extending forward to the right, and a rear horizontal arm 140 extending backward. A left front floating body 150 is provided at the outer end of the left front horizontal arm 120, a right front floating body 160 is provided at the outer end of the right front horizontal arm 130, and a rear floating body 170 is provided at the outer end of the rear horizontal arm 140. The connecting portion 110 is provided with a left front support beam 310 extending upward and forward to the left and a right front support beam 320 extending forward to the right. The rear floating body 170 is provided with a rear support beam 330 extending upward. The left front wind turbine 210 is provided at the top of the left front support beam 310, the right front wind turbine 220 is provided at the top of the right front support beam 320, and the rear wind turbine 230 is provided at the top of the rear support beam 330.

[0040] The floating base 100 adopts a "Y"-shaped floating body. The left front support beam 310 supporting the left front wind turbine 210 and the right front support beam 320 supporting the right front wind turbine 220 form a "V"-shaped tower. Among them, the bottom end of the "V"-shaped tower is arranged at the connecting portion 110 located in the central area to ensure the stable support of the left front floating body 150, the right front floating body 160, and the rear floating body 170 for the "V"-shaped tower and the left front wind turbine 210 and the right front wind turbine 220 installed at its top. Among them, the left front support beam 310 and the right front support beam 320 of the "V"-shaped tower extend forward to the left and forward to the right respectively, so that the left front wind turbine 210 and the right front wind turbine 220 are respectively located in the left front area and the right front area of the floating base 100. Therefore, the rear wind turbine 230 located in the rear area of the floating base 100 is supported by the rear support beam 330 extending upward above the rear floating body 170, so as to make the left front wind turbine 210, the right front wind turbine 220, and the rear wind turbine 230 adapt to the distribution of the left front floating body 150, the right front floating body 160, and the rear floating body 170, and improve the support stability of the floating base 100 for the left front wind turbine 210, the right front wind turbine 220, and the rear wind turbine 230.

[0041] Specifically, the floating base 100 can adopt an existing conventional "Y"-shaped semi-submersible floating body. By making full use of the structure of the "Y"-shaped semi-submersible floating body, while increasing the number of wind turbines and reasonably arranging the installation positions and extension directions of the support beams in the wind turbines and the orientations of the wind turbines, the structural characteristics of the semi-submersible floating body do not need to be changed. Thus, on the basis of improving the overall installed capacity and power generation efficiency of the floating wind power generation system, the unit kilowatt cost of the floating wind power generation system can be effectively reduced.

[0042] Specifically, the floating base 100 can adopt three-point mooring. When the rear wind turbine 230 adjusts its steering to adapt to the air flow direction, the floating base 100 can maintain stable support for each wind turbine.

[0043] Optionally, in this embodiment, as Figure 1As shown, a traction mechanism 400 can be set up to improve the support stability of the left front support beam 310 and the right front support beam 320. Specifically, the following forms can be adopted: A first traction rope 410 is connected between the top beam of the left front support beam 310 and the top beam of the right front support beam 320, a second traction rope 420 is connected between the left front support beam 310 and the left front floating body 150, and a third traction rope 430 is connected between the left front support beam 310 and the rear support beam 330. A fourth traction rope 440 is connected between the top beam of the right front support beam 320 and the right front floating body 160, and a fifth traction rope 450 is connected between the right front support beam 320 and the rear support beam 330.

[0044] The top end of the left front support beam 310 is subject to the downward gravity of the left front fan 210. This gravity can be decomposed into an axial component force downward along the axis of the left front support beam 310 and a horizontal component force toward the left front. Among them, the first traction rope 410, the second traction rope 420, and the third traction rope 430 generate traction forces on the top beam of the left front support beam 310. Specifically, the first traction rope 410 generates a horizontal traction force to the right on the top beam of the left front support beam 310. The second traction rope 420 can generate a horizontal traction component force toward the left front and an axial traction component force downward along the axis of the left front support beam 310 on the top beam of the left front support beam 310. The third traction rope 430 can generate a horizontal traction component force toward the right rear and an axial traction component force downward along the axis of the left front support beam 310 on the top beam of the left front support beam 310. Then, the horizontal traction force applied by the first traction rope 410, the horizontal traction component force applied by the second traction rope 420, and the horizontal traction component force applied by the third traction rope 430 are jointly used to balance the horizontal component force applied by the left front fan 210. At the same time, the axial support force applied by the connecting part 110 along the axis of the left front support beam 310 can balance the axial component force applied by the left front fan 210, the axial traction component force applied by the second traction rope 420, and the axial traction component force applied by the third traction rope 430. Then, the left front support beam 310 only bears axial pressure without bearing torque forces, thus ensuring the support stability of the left front support beam 310 for the left front fan 210 and reducing the occurrence of bending or even breaking of the bottom end of the left front support beam 310 due to torque forces.

[0045] The right front support beam 320 is subject to the gravity of the right front fan 220, the traction forces of the first traction rope 410, the fourth traction rope 440, and the fifth traction rope 450, and the axial support force of the connecting part 110, which is similar to that of the left front support beam 310 and will not be elaborated here.

[0046] The force analysis of the rear support beam 330 is as follows: The rear support beam 330 is subject to the downward gravity of the rear wind turbine 230. The third towing rope 430 generates a horizontal towing component force directed left-forward and an axial towing component force directed upward along the axis of the rear support beam 330 on the rear support beam 330. The fifth towing rope 450 generates a horizontal towing component force directed right-forward and an axial towing component force directed upward along the axis of the rear support beam 330 on the rear support beam 330. Then, the axial acting force exerted by the rear floating body 170 along the axis of the rear support beam 330 is used to balance the gravity exerted by the rear wind turbine 230, the axial towing component force exerted by the third towing rope 430, and the axial towing component force exerted by the fifth towing rope 450. At the same time, when the resultant force of the horizontal towing component force exerted by the third towing rope 430 and the horizontal towing component force exerted by the fifth towing rope 450 is not zero, the rear support beam 330 is subject to a torque acting force to balance the resultant force of the above two horizontal towing component forces, so that the rear support beam 330 stably supports the rear wind turbine 230 upward and assists in supporting the left-front wind turbine 210 and the right-front wind turbine 220.

[0047] Then, the setting of the towing mechanism 400, on the one hand, during use, the left-front support beam 310 and the right-front support beam 320 are only subject to axial acting forces without being subject to torque acting forces, thus ensuring the stable support of the left-front support beam 310 for the left-front wind turbine 210 and the stable support of the right-front support beam 320 for the right-front wind turbine 220, and reducing the occurrence of shaking, offset during the operation of the left-front wind turbine 210 and the right-front wind turbine 220, as well as the situation of bending or even breaking of the left-front support beam 310 and the right-front support beam 320 due to large torque acting forces. On the other hand, in the towing mechanism 400, the first towing rope 410, the second towing rope 420, the third towing rope 430, the fourth towing rope 440, and the fifth towing rope 450, which are light in weight and small in windward area, are used to tow each support beam. On the basis of ensuring the stable support of each support beam for the corresponding wind turbine, the overall weight and windward area borne by the floating seat 100 are reduced, and the overall floating wind power generation system forms a stable structure in a state of low self-weight and low center of gravity, thereby reducing the impact of the sea breeze on the overall structure of the floating wind power generation system, improving its stability and adaptability to sea conditions and wind conditions, and correspondingly improving the operation safety and construction economy of each wind turbine.

[0048] In this embodiment, as Figure 1As shown in the figure, the rear support beam 330 includes a bearing platform 331 fixedly arranged on the rear floating body 170 and a support rod 332 fixedly arranged on the top of the bearing platform 331. One end of the third towing rope 430 away from the left front support beam 310 is connected to the top platform of the bearing platform 331, and one end of the fifth towing rope 450 away from the right front support beam 320 is connected to the top platform of the bearing platform 331. On the one hand, the bearing platform 331 is fixedly connected to the rear floating body 170 and both the diameter and strength are larger than those of the support rod 332. The rear ends of the third towing rope 430 and the fifth towing rope 450 are both connected to the top platform of the bearing platform 331. Then, the horizontal towing component force acting on the rear support beam 330 towards the left front and the axial towing component force acting upwards along the axis of the rear support beam 330 applied by the third towing rope 430, as well as the horizontal towing component force acting on the rear support beam 330 towards the right front and the axial towing component force acting upwards along the axis of the rear support beam 330 applied by the fifth towing rope 450, all directly act on the bearing platform 331. The bearing platform 331 can stably bear the towing acting forces applied by the third towing rope 430 and the fifth towing rope 450, thereby ensuring the towing effects of the third towing rope 430 and the fifth towing rope 450 on the left front support beam 310 and the right front support beam 320. Correspondingly, the support rod 332 directly supporting the rear fan 230 only receives the gravity of the rear fan 230 acting downwards along its axis and will not receive the towing acting forces of the third towing rope 430 and the fifth towing rope 450, thereby ensuring the stable support of the support rod 332 for the rear fan 230.

[0049] In addition, compared with the situation where the third towing rope 430 and the fifth towing rope 450 are connected to the bottom end of the bearing platform 331, that is, the bottom end of the rear support beam 330, in this embodiment, both the third towing rope 430 and the fifth towing rope 450 are connected to the top platform of the bearing platform 331, which can effectively raise the height of the rear ends of the third towing rope 430 and the fifth towing rope 450, thereby increasing the horizontal towing component force of the third towing rope 430 acting on the left front support beam 310 and the horizontal towing component force of the fifth towing rope 450 acting on the right front support beam 320, correspondingly improving the towing stability of the third towing rope 430 and the fifth towing rope 450 for the left front support beam 310 and the right front support beam 320, and further ensuring the support stability of the left front support beam 310 for the left front fan 210 and the support stability of the right front support beam 320 for the right front fan 220.

[0050] Specifically, in this embodiment, as Figure 4As shown, the projections of the left front floating body 150 and the left front support beam 310 onto the target horizontal plane are the first projection and the second projection respectively. The left front end of the second projection is located on the left front side of the first projection. The projection of the top end of the left front support beam 310 onto the target horizontal plane serves as the left front end of the second projection and is located in front of and to the left of the left front floating body 150. At the same time, the height of the top end of the left front support beam 310 relative to the left front floating body 150 is greater than the diameter of the wind wheel of the left front wind turbine 210. Then, the entire wind wheel of the left front wind turbine 210 is located above and in front of and to the left of the floating seat 100 and the left front floating body 150, so that the floating seat 100 avoids the movement and potential deformation area of the wind wheel of the left front wind turbine 210, correspondingly ensuring the stable operation of the left front wind turbine 210 and reducing the occurrence of interference between the wind wheel and the floating seat 100.

[0051] Similarly, as Figure 4 shown, the projections of the right front floating body 160 and the right front support beam 320 onto the target horizontal plane are the third projection and the fourth projection respectively. The right front end of the fourth projection is located on the right front side of the third projection. The projection of the top end of the right front support beam 320 onto the target horizontal plane serves as the right front end of the fourth projection and is located in front of and to the right of the right front floating body 160. At the same time, the height of the top end of the right front support beam 320 relative to the right front floating body 160 is greater than the diameter of the wind wheel of the right front wind turbine 220. Then, the entire wind wheel of the right front wind turbine 220 is located above and in front of and to the right of the floating seat 100 and the right front floating body 160, so that the floating seat 100 avoids the movement and potential deformation area of the wind wheel of the right front wind turbine 220, correspondingly ensuring the stable operation of the right front wind turbine 220 and reducing the occurrence of interference between the wind wheel and the floating seat 100.

[0052] Specifically, in this embodiment, as Figure 4 shown, the projection of the left front horizontal arm 120 onto the target horizontal plane is the fifth projection. The axis of the second projection coincides with the axis of the fifth projection, and the axis of the second projection passes through the center of the first projection. Among them, the projection of the axis of the left front horizontal arm 120 onto the target horizontal plane serves as the axis of the fifth projection, the projection of the axis of the left front support beam 310 onto the target horizontal plane serves as the axis of the second projection, and the projection of the center of the left front floating body 150 onto the target horizontal plane serves as the center of the first projection. Then, there is no angular offset of the left front support beam 310, the left front horizontal arm 120, and the left front floating body 150 in the horizontal direction. When the wind wheel rotation direction of the left front wind turbine 210 is adjusted to avoid any angle of the left front support beam 310, it is located outside the left front horizontal arm 120 and the left front floating body 150, thereby further enabling the left front horizontal arm 120 and the left front floating body 150 to avoid the movement area and potential deformation area of the wind wheel of the left front wind turbine 210, correspondingly further ensuring the stable operation of the left front wind turbine 210.

[0053] Similarly, as Figure 4As shown, the projection of the right front horizontal arm 130 onto the target horizontal plane is the sixth projection. The axis of the fourth projection coincides with the axis of the sixth projection, and the axis of the fourth projection passes through the center of the third projection. Among them, the projection of the axis of the right front horizontal arm 130 onto the target horizontal plane serves as the axis of the sixth projection, the projection of the axis of the right front support beam 320 onto the target horizontal plane serves as the axis of the fourth projection, and the projection of the center of the right front floating body 160 onto the target horizontal plane serves as the center of the third projection. Then, there is no angular offset in the horizontal direction between the right front support beam 320, the right front horizontal arm 130, and the right front floating body 160. When the wind wheel rotation direction of the right front wind turbine 220 is adjusted to any angle to avoid the right front support beam 320, it is located outside the right front horizontal arm 130 and the right front floating body 160, thereby further enabling the right front horizontal arm 130 and the right front floating body 160 to avoid the movement area and potential deformation area of the wind wheel of the right front wind turbine 220, and correspondingly further ensuring the stable operation of the right front wind turbine 220.

[0054] Specifically, in this embodiment, as Figure 4 shown, the left front wind turbine 210, the right front wind turbine 220, and the rear wind turbine 230 are arranged in an equilateral triangle. The left front wind turbine 210, the right front wind turbine 220, and the rear wind turbine 230 have the same height, and the overall center of gravity of the three is located at the center of the triangle, and correspondingly at the middle position of the floating seat 100, thereby ensuring the stable support of the floating seat 100 for the three and ensuring the stable operation of the three.

[0055] In this embodiment, the left front wind turbine 210, the right front wind turbine 220, and the rear wind turbine 230 are all equipped with a deviation correction system. Specifically, the deviation correction system communicatively connected to the left front wind turbine 210 can adjust the rotation direction of the wind wheel of the left front wind turbine 210 according to the wind direction, so that the wind wheel of the left front wind turbine 210 can maintain a better inflow angle with the airflow direction, thereby improving the utilization efficiency of wind resources and the power generation efficiency of the left front wind turbine 210; similarly, the deviation correction system of the right front wind turbine 220 can adjust the rotation direction of the wind wheel of the right front wind turbine 220 according to the wind direction, so that the wind wheel of the right front wind turbine 220 can maintain a better inflow angle with the airflow direction, thereby improving the utilization efficiency of wind resources and the power generation efficiency of the right front wind turbine 220; the deviation correction system of the rear wind turbine 230 can perform secondary deviation correction on the wind wheel of the rear wind turbine 230 to ensure that the wind wheel of the rear wind turbine 230 can maintain a better inflow angle with the airflow direction, and correspondingly improve the utilization efficiency of wind resources and the power generation efficiency of the rear wind turbine 230.

[0056] Specifically, when the floating wind power generation system is provided with a traction mechanism 400 and the left front wind turbine 210 is located on the left front side of the left front floating body 150, and the right front wind turbine 220 is located on the right front side of the right front floating body 160, the second traction rope 420 connected between the top end of the left front support beam 310 and the left front floating body 150 is entirely located on the right rear side of the left front wind turbine 210, and the fourth traction rope 440 connected between the top end of the right front support beam 320 and the right front floating body 160 is entirely located on the left rear side of the right front wind turbine 220. The first traction rope 410, the third traction rope 430, and the fifth traction rope 450 are sequentially connected to form a triangle, and the left front wind turbine 210, the right front wind turbine 220, and the rear wind turbine 230 are located outside the three corners of the triangle. Then, the rotation of the left front wind turbine 210 is restricted by the first traction rope 410 and the third traction rope 430, the rotation of the right front wind turbine 220 is restricted by the first traction rope 410 and the fifth traction rope 450, and the rotation of the rear wind turbine 230 is restricted by the third traction rope 430 and the fifth traction rope 450. For different wind directions, the floating wind power generation system includes the following windward modes:

[0057] Front windward mode: As Figure 4 shown, the wind wheel of the left front wind turbine 210 faces forward, the wind wheel of the right front wind turbine 220 faces forward, and the wind wheel of the rear wind turbine 230 faces backward; the wind direction is from front to back. The wind wheel of the left front wind turbine 210 faces forward and forms a better inflow angle with the air flow, and there is no interference between the wind wheel of the left front wind turbine 210 and the first traction line and the third traction line; the wind wheel of the right front wind turbine 220 faces forward and forms a better inflow angle with the air flow, and there is no interference between the wind wheel of the right front wind turbine 220 and the first traction line and the fifth traction line; the wind wheel of the rear wind turbine 230 faces backward and forms a better inflow angle with the air flow, and there is no interference between the wind wheel of the rear wind turbine 230 and the third traction line and the fifth traction line, thereby ensuring the utilization efficiency of wind resources and the power generation efficiency of the left front wind turbine 210, the right front wind turbine 220, and the rear wind turbine 230.

[0058] Left front windward mode: As Figure 5As shown, the impeller of the left front fan 210 deflects left by a first preset angle, the impeller of the right front fan 220 faces forward, and the impeller of the rear fan 230 deflects right by a first preset angle; when the wind direction is deflected left by a first preset angle relative to the front-rear direction, after the deviation correction system detects the change in the wind direction, it feeds back the detected wind direction change signal to the control module of the floating wind power generation system. The control module correspondingly controls the impeller of the left front fan 210 to deflect left by a first preset angle, controls the impeller of the rear fan 230 to deflect right by a first preset angle, and controls the impeller of the right front fan 220 to remain forward. At this time, on the basis that the impeller of the left front fan 210 ensures that it will not interfere with the third towing line and the impeller of the rear fan 230 ensures that it will not interfere with the fifth towing line, both can maintain a better inflow angle with the airflow. Correspondingly, within a certain angle range where the wind direction is deflected left, the left front fan 210 and the rear fan 230 are ensured to be in a better power generation efficiency in real time; at the same time, the right front fan 220 cannot deflect left under the restriction of the first towing line, and it maintains the current forward angle, presenting the best inflow angle with the airflow within the rotation range, so as to ensure its power generation efficiency, and correspondingly ensure that each fan maintains the maximum power generation efficiency on the basis of avoiding the towing mechanism 400 under the wind condition of the left-deflected wind direction, thereby ensuring the stable operation and higher power generation efficiency of the floating wind power generation system.

[0059] Right front windward mode: The impeller of the left front fan 210 faces forward, the impeller of the right front fan 220 deflects right by a second preset angle, and the impeller of the rear fan 230 deflects left by a second preset angle. Similarly, when the wind direction is deflected right by a second preset angle relative to the front-rear direction, after the deviation correction system detects the change in the wind direction, it feeds back the detected wind direction change signal to the control module of the floating wind power generation system. The control module correspondingly controls the impeller of the right front fan 220 to deflect right by a second preset angle, controls the impeller of the rear fan 230 to deflect left by a second preset angle, and controls the impeller of the left front fan 210 to remain forward. At this time, on the basis that the impeller of the right front fan 220 ensures that it will not interfere with the fifth towing line and the impeller of the rear fan 230 ensures that it will not interfere with the third towing line, both can maintain a better inflow angle with the airflow. Correspondingly, within a certain angle range where the wind direction is deflected right, the right front fan 220 and the rear fan 230 are ensured to be in a better power generation efficiency in real time; at the same time, the left front fan 210 cannot deflect right under the restriction of the first towing line, and it maintains the current forward angle, presenting the best inflow angle with the airflow within the rotation range, so as to ensure its power generation efficiency, and correspondingly ensure that each fan maintains the maximum power generation efficiency on the basis of avoiding the towing mechanism 400 under the wind condition of the right-deflected wind direction, thereby ensuring the stable operation and higher power generation efficiency of the floating wind power generation system.

[0060] Specifically, when the left front fan 210, the right front fan 220, and the rear fan 230 are approximately arranged in an equilateral triangle, the first traction line, the third traction line, and the fifth traction line approximately enclose an equilateral triangle. Then, with the front direction as the initial position, the wind wheel of the left front fan 210 can rotate nearly 300° clockwise to the left rear, the wind wheel of the right front fan 220 can rotate nearly 300° counterclockwise to the right rear, and with the rear direction as the initial position, the wind wheel of the rear fan 230 can rotate nearly 150° counterclockwise to the left front and nearly 150° clockwise to the right front. As a result, each fan has a large steering adjustment range, can adapt to a large range of inflow angles, and correspondingly improves the adaptability of the floating wind power generation system to wind conditions, as well as its utilization efficiency and power generation efficiency of wind resources.

[0061] In this embodiment, as Figure 1 shown, first reinforcing ribs 181 are connected between the left front horizontal arm 120 and the right front horizontal arm 130, between the left front horizontal arm 120 and the rear horizontal arm 140, and between the right front horizontal arm 130 and the rear horizontal arm 140 to improve the connection structural strength and stability of each horizontal arm, thereby ensuring the stability of each horizontal arm in carrying each floating body and fan.

[0062] Similarly, as Figure 1 shown, a second reinforcing rib 182 is connected between the bearing platform 331 and the rear horizontal arm 140 to improve the structural stability and strength of the connection between the bearing platform 331 and the rear floating body 170, thereby ensuring the traction stability of the bearing platform 331 for the third traction rope 430 and the fifth traction rope 450, as well as the support stability of the bearing platform 331 for the support rod 332.

[0063] Similarly, as Figure 1 shown, third reinforcing ribs 183 are connected between the left front floating body 150 and the left front horizontal arm 120, between the right front floating body 160 and the right front horizontal arm 130, and between the rear floating body 170 and the rear horizontal arm 140 to improve the structural stability of the connection between each floating body and the corresponding horizontal arm, and ensure the stable buoyancy support of each floating body for each fan through each horizontal arm and the support beam.

[0064] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A floating wind power generation system, characterized in that: The invention comprises a floating seat (100), wherein the floating seat (100) is divided into a windward area and a leeward area along the front-to-back direction, wherein the windward area is provided with a left front fan (210) and a right front fan (220) which are evenly arranged at intervals along the left and right sides and are in an upwind direction; and the leeward area is provided with a rear fan (230) which is in a downwind direction, and along the left and right directions, the rear fan (230) is located between the left front fan (210) and the right front fan (220).

2. The floating wind power generation system according to claim 1, characterized in that: The floating seat (100) comprises a connecting portion (110), wherein the connecting portion (110) is connected with a left front horizontal arm (120) extending to the left front, a right front horizontal arm (130) extending to the right front, and a rear horizontal arm (140) extending to the rear, wherein a left front floating body (150) is provided at the outer end of the left front horizontal arm (120), a right front floating body (160) is provided at the outer end of the right front horizontal arm (130), and a rear floating body (170) is provided at the outer end of the rear horizontal arm (140); The connecting portion (110) is provided with a left front support beam (310) extending from bottom to top to the left front and a right front support beam (320) extending from bottom to top to the right front, the rear floating body (170) is provided with a rear support beam (330) extending upward, the left front fan (210) is provided at the top end of the left front support beam (310), the right front fan (220) is provided at the top end of the right front support beam (320), and the rear fan (230) is provided at the top end of the rear support beam (330).

3. The floating wind power generation system according to claim 2, characterized in that: A first traction rope (410) is connected between the top beam body of the left front support beam (310) and the top beam body of the right front support beam (320), a second traction rope (420) is connected between the left front floating body (150), and a third traction rope (430) is connected between the left front support beam (330); a fourth traction rope (440) is connected between the top beam body of the right front support beam (320) and the right front floating body (160), and a fifth traction rope (450) is connected between the right front support beam (330).

4. The floating wind power generation system according to claim 3, characterized in that: The rear support beam (330) includes a support platform (331) fixedly mounted on the rear floating body (170) and a support rod (332) fixedly mounted on the top of the support platform (331); one end of the third traction rope (430) facing away from the left front support beam (310) is connected to the top platform of the support platform (331); and one end of the fifth traction rope (450) facing away from the right front support beam (320) is connected to the top platform of the support platform (331).

5. The floating wind power generation system according to any one of claims 2 to 4, characterized in that: The projections of the left front floating body (150) and the left front supporting beam (310) onto the target horizontal plane are respectively a first projection and a second projection, and the left front end of the second projection is located on the left front side of the first projection; And / or, the projections of the right front floating body (160) and the right front supporting beam (320) onto the target horizontal plane are respectively the third projection and the fourth projection, and the right front end of the fourth projection is located on the right front side of the third projection.

6. The floating wind power generation system according to claim 5, characterized in that: The projection of the left front horizontal arm (120) onto the target horizontal plane is a fifth projection, the axis of the second projection coincides with the axis of the fifth projection, and the axis of the second projection passes through the center of the first projection; And / or, the projection of the right front horizontal arm (130) onto the target horizontal plane is a sixth projection, the axis of the fourth projection coincides with the axis of the sixth projection, and the axis of the fourth projection passes through the center of the third projection.

7. The floating wind power generation system according to any one of claims 2 to 4, characterized in that: The left front fan (210), the right front fan (220), and the rear fan (230) are arranged in an equilateral triangle.

8. The floating wind power generation system according to any one of claims 1 to 4, characterized in that: The left front fan (210), the right front fan (220) and the rear fan (230) are all provided with a deviation correction system.

9. The floating wind power generation system according to claim 8, characterized in that: The floating wind power generation system comprises: Front windward mode: the wind wheel of the left front fan (210) faces forward, the wind wheel of the right front fan (220) faces forward, and the wind wheel of the rear fan (230) faces rearward; Left front windward mode: the wind wheel of the left front fan (210) is deflected to the left by a first preset angle, the wind wheel of the right front fan (220) faces forward, and the wind wheel of the rear fan (230) is deflected to the right by a first preset angle; Right front windward mode: the wind wheel of the left front fan (210) faces forward, the wind wheel of the right front fan (220) is deflected to the right by a second preset angle, and the wind wheel of the rear fan (230) is deflected to the left by a second preset angle.

10. The floating wind power generation system according to claim 4, characterized in that: A first reinforcing rib (181) is connected between the left front horizontal arm (120) and the right front horizontal arm (130) and / or between the left front horizontal arm (120) and the rear horizontal arm (140) and / or between the right front horizontal arm (130) and the rear horizontal arm (140); And / or, a second reinforcing rib (182) is connected between the support platform (331) and the rear horizontal arm (140); And / or, a third reinforcing rib (183) is connected between the left front floating body (150) and the left front horizontal arm (120), and / or between the right front floating body (160) and the right front horizontal arm (130), and / or between the rear floating body (170) and the rear horizontal arm (140).

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