Hybrid excitation offshore wind power generation system and method

Abstract

The invention discloses a hybrid excitation offshore wind power generation system and method, and relates to the technical field of offshore wind power generation systems, the hybrid excitation offshore wind power generation system comprises a tower, a cabin, a gearbox, a bearing, blades, a hybrid excitation generator and a cooling assembly, the cabin is mounted at the top of the tower, the gearbox is mounted on the inner wall of the cabin, and the bearing is mounted on the bearing; a bearing is installed on the outer wall of the cabin in a penetrating mode, and a hybrid excitation generator is installed on the inner wall of the cabin. A first motor is installed to rotate to drive a winding wheel to rotate, the winding wheel rotates to drive a pull rope to move, the pull rope moves to drive a sealing plate to be pulled up through a rotating shaft, the sealing plate is pulled up to drive a first spring to move, the first spring moves to pull up the sealing plate, and the sealing plate is pulled up to open a first opening; the first opening is opened, so that wind power enters the cabin after being filtered by the filter screen to quickly cool the hybrid excitation generator, and the functions of quickly cooling the hybrid excitation generator of the offshore wind power generation system and improving the power generation stability are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power generation systems, and in particular to a hybrid excitation offshore wind power generation system and method. Background Art

[0002] The hybrid excitation motor combines permanent magnet and electric excitation. The total magnetic flux of the motor is changed by adjusting the magnetic flux of the electric excitation part, thereby achieving flexible control of the motor performance. The DC excitation winding can adjust the magnetic flux of the motor by magnetizing or weakening the magnetic field. The hybrid excitation offshore wind power generation system is a wind power generation system that combines permanent magnet and electric excitation. The system uses wind power to drive the generator to rotate and converts wind energy into electrical energy through an energy conversion process. Compared with traditional wind power generation systems, hybrid excitation systems have higher efficiency and more flexible control characteristics. However, the hybrid excitation generators of existing offshore wind power generation systems cannot cool down quickly, reducing the stability of power generation.

[0003] The defects of existing offshore wind power generation systems are: 1. Patent document CN113809768A discloses a DC wind turbine generator set and a DC wind power system, "including: a generator, outputting a first AC voltage, a first rectifier, rectifying the first AC voltage output by the generator to obtain a first DC voltage, an inverter, inverting the first DC voltage output by the first rectifier to obtain a second AC voltage, a step-up transformer, step-up the second AC voltage output by the inverter, a second rectifier, rectifying the stepped-up second AC voltage to obtain a second DC voltage, and an energy storage device, connected in parallel to the DC side of the first rectifier, converting the first DC voltage output by the first rectifier to obtain a third DC voltage. The topology scheme of the DC wind turbine generator set and the DC wind power system based on the exemplary embodiment of the present invention can realize efficient transmission of electric energy and effectively reduce the overall cost", but the hybrid excitation generator of the existing offshore wind power generation system cannot quickly cool down and reduce the power generation stability; 2. Patent document CN107420531B discloses a wind power gearbox lubrication system "including: a gearbox, a lubricating oil conveying machine, a one-way valve group including at least a first one-way valve and a second one-way valve, a cooler, and an oil separator; a lubricating oil injection structure is arranged in the gearbox; the one-way valve group has an inlet, a first outlet, and a second outlet; the inlet of the one-way valve group is connected to the oil outlet of the lubricating oil conveying machine and the oil inlet of the cooler; the first outlet of the one-way valve group is connected to the gearbox; the second outlet of the one-way valve group and the oil outlet of the cooler are both connected to the oil inlet of the oil separator; the oil outlet of the oil separator is connected to the lubricating oil injection structure; the present invention has a wide range of application and high practical value", but the existing offshore wind power generation system cannot be timely controlled at a suitable operating temperature to reduce the power generation efficiency; 3. Patent document CN103337040A discloses a wind power generation plan preparation system and preparation method taking into account the volatility of wind power. "The system includes a model module, an algorithm module, and a model calculation screening module. The system accepts wind power information and power grid information input, selects different models for optimization calculation, and the model calculation screening module obtains the rating information and the model and optimization results corresponding to the rating information from the evaluation and rating library, and selects the highest-rated model and optimization results as the power generation plan for distribution. The actual power generation plan is compared with the power generation plan of each model, and the rating information is continuously modified according to the accuracy. After long-term use, different model selections and parameter presets for specific situations will also be accumulated, and the intelligent optimization preparation system for power generation plans will become more and more adapted to various dynamically changing environments and requirements." However, the blades and connectors of the existing offshore wind power generation system cannot be sealed and connected, which reduces the sealing of the connection and easily allows water to enter and corrode the blades, which is not safe to use; 4. Patent document CN102222981B discloses a monitoring system for a wind power converter and a wind power generation system, "including: a data acquisition unit for collecting the operating status and key parameter data of the wind power converter, a communication unit, a conversion unit, and a host computer conversion unit for converting the operating status and key parameter data of the wind power converter sent by the data acquisition unit through the communication unit into data recognizable by the host computer, and then sending it to the host computer and displaying it through the host computer. The present invention realizes real-time monitoring of the operating status and key parameters of the wind power converter through the monitoring system of the wind power converter provided by it, thereby improving the maintenance efficiency of the wind turbine generator set, facilitating the timely handling and prevention of faults, saving maintenance costs, and the monitoring system has the advantages of intuitive monitoring, simple operation, low cost, etc.", but the gearbox of the existing offshore wind power generation system cannot be automatically lubricated, which reduces its service life. Summary of the invention

[0004] The object of the present invention is to provide a hybrid excitation offshore wind power generation system and method to solve the technical problem in the above background technology that the offshore wind power generation system cannot be timely controlled at a suitable operating temperature to reduce the power generation efficiency.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a hybrid excitation offshore wind power generation system, comprising a tower, a nacelle, a gearbox, a bearing, a blade, a hybrid excitation generator and a cooling component, wherein a nacelle is installed on the top of the tower, a gearbox is installed on the inner wall of the nacelle, a bearing is installed through the outer wall of the nacelle, a hybrid excitation generator is installed on the inner wall of the nacelle, and one end of the bearing is connected to one end of the gearbox, and one end of the gearbox is connected to the outer wall of the hybrid excitation generator, the cooling component is located on the inner wall of the nacelle, a temperature control module is installed on the inner wall of the nacelle, a connector is installed on the outer wall of the bearing, and blades are installed on the outer wall of the connector through bolts; The cooling component includes a No. 1 frame, a No. 2 frame, a sealing plate, a No. 1 spring, a filter, a No. 1 port, and a No. 1 motor. The No. 1 frame is located on the inner wall of the cabin, the No. 1 spring is located on the outer wall of the No. 1 frame, the outer wall of the sealing plate is connected to the inner wall of the cabin through a rotating shaft, and one end of the No. 1 spring is connected to the outer wall of the sealing plate, the No. 2 frame is located on the inner wall of the cabin, the No. 1 port is opened at the bottom of the cabin, the filter is located on the inner wall of the No. 1 port, the No. 1 motor is located on the outer wall of the No. 2 frame, a winding wheel is installed at the output end of the No. 1 motor, a pull rope is installed on the outer wall of the winding wheel, and one end of the pull rope is connected to the top of the sealing plate.

[0006] Preferably, the sealing plate is located above the No. 1 opening, and the sealing plate moves in an arc shape through a rotating shaft.

[0007] Preferably, the temperature control module includes a processing module and a temperature sensor. The processing module is located on the inner wall of the cabin, the temperature sensor is located on the inner wall of the cabin, the processing module is electrically connected to the temperature sensor, and the processing module is electrically connected to the cooling component. The temperature sensor is used to detect real-time working temperature data in the cabin, and the processing module has built-in suitable working temperature data in the cabin, and the suitable working temperature data is 10~60℃.

[0008] Preferably, the real-time operating temperature data in the cabin is transmitted to a processing module, which compares the real-time operating temperature data in the cabin with the suitable operating temperature data in the cabin. When the real-time operating temperature data in the cabin is greater than the suitable operating temperature data in the cabin, it is set to a high temperature state; when the real-time operating temperature data in the cabin is less than the suitable operating temperature data in the cabin, it is set to a low temperature state; when the real-time operating temperature data in the cabin is within the suitable operating temperature data in the cabin, it is set to a suitable temperature state.

[0009] Preferably, a sealing assembly is installed on the inner wall of the connector, and a lubrication assembly is installed through the top of the gear box.

[0010] Preferably, the sealing assembly includes an adsorption net, a No. 1 plate, a No. 2 spring, a connecting block, a No. 3 port, and a sealing head, the adsorption net is located on the inner wall of the connecting head, the No. 1 plate is located on the inner wall of the connecting head, the No. 2 spring is located on the outer wall of the No. 1 plate, the No. 3 port is opened on the outer wall of the connecting head, the connecting block passes through the inner wall of the No. 3 port, and one end of the No. 2 spring is connected to the outer wall of the connecting block, the sealing head is located on the outer wall of the connecting block, a slider is installed on the inner wall of the No. 3 port, a sliding groove is opened on the outer wall of the connecting block, and the slider is located in the sliding groove.

[0011] Preferably, the slide groove is moved by the support of the slider, the No. 1 cylinder is moved by the support of the No. 1 rod, and the sealing head is located at one end of the blade.

[0012] Preferably, the lubrication assembly includes a collecting box, an oil inlet head, an oil outlet pipe, a T-shaped sealing block, a sealing ring, a guide head, a No. 2 rod, and a No. 5 motor. The collecting box is located at the top of the gear box, the oil inlet head passes through the outer wall of the collecting box, the oil outlet pipe passes through the outer wall of the collecting box, and one end of the oil outlet pipe extends to the inner wall of the gear box, the T-shaped sealing block passes through one end of the oil outlet pipe, the sealing ring is located on the inner wall of the oil outlet pipe, the guide head is located at one end of the T-shaped sealing block, the No. 2 rod is located on the inner wall of the gear box, the outer wall of the No. 2 rod is installed with a No. 5 cylinder, the outer wall of the No. 5 cylinder is installed with a gear rod, the No. 5 motor is located on the inner wall of the gear box, the output end of the No. 5 motor is installed with a gear, and the gear rod is meshed with the gear, and one end of the gear rod is connected to the outer wall of the guide head.

[0013] Preferably, the No. 5 cylinder is moved by the support of the No. 2 rod, and the T-shaped sealing block cooperates with the sealing ring to seal the oil outlet pipe.

[0014] Preferably, the power generation method of the wind power generation system comprises the following steps: Step S1, the function of the No. 1 frame is to provide support for the No. 1 spring, the No. 1 motor rotates to drive the winding wheel to rotate, the winding wheel rotates to drive the pull rope to move, the pull rope moves to drive the sealing plate to be pulled up through the rotating shaft, the No. 1 spring is pulled up to move, the No. 1 spring moves to pull up the sealing plate, the sealing plate is pulled up to open the No. 1 port, the No. 1 port is opened to allow wind to pass through the filter and then enter the cabin to quickly cool down the hybrid excitation generator, thereby realizing the function of quickly cooling down the hybrid excitation generator of the offshore wind power generation system and improving the power generation stability; Step S2, when the processing module detects a high temperature state, the processing module controls the cooling component to start, and after the cooling component is started, the temperature sensor continuously detects the real-time working temperature data in the cabin until the processing module detects a low temperature state or a suitable temperature state. When the processing module detects a low temperature state, the processing module controls the cooling component not to start or to shut down, and after the cooling component is not started or shut down, the temperature sensor continuously detects the real-time working temperature data in the cabin until the processing module detects a high temperature state or a suitable temperature state. When the processing module detects a suitable temperature state, the processing module controls the cooling component not to start or to shut down, and after the cooling component is not started or shut down, the temperature sensor continuously detects the real-time working temperature data in the cabin until the processing module detects a low temperature state or a high temperature state, thereby realizing the function of timely controlling the offshore wind power generation system at a suitable working temperature to improve the power generation efficiency; Step S3, when the blade is connected to the connector by bolts, the sealing head is driven to move, the sealing head drives the connecting block to move through the No. 3 port, the connecting block drives the slide groove to move through the support of the slider, the connecting block drives the No. 2 spring to move, the No. 2 spring moves to make the sealing head tightly connected with the blade, so as to achieve the function of sealing connection between the blade and the connector, improving the sealing performance of the connection, preventing water from entering and corroding the blade connection, and improving the safety of use; Step S4, the T-shaped sealing block cooperates with the sealing ring to seal the oil outlet pipe, and the lubricating oil is added to the collection box through the oil inlet head. The rotation of the No. 5 motor drives the gear to move, the movement of the gear drives the gear rod to move, the movement of the gear rod drives the No. 5 cylinder to move, the movement of the No. 5 cylinder causes the rod to drive the guide head to move, the movement of the guide head drives the T-shaped sealing block to move, the movement of the T-shaped sealing block causes it to move away the sealing ring to open the oil outlet pipe, and the opening of the oil outlet pipe allows the lubricating oil to enter the gear box for automatic lubrication, thereby realizing the function of automatic lubrication of the gear box of the offshore wind power generation system to increase its service life.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a No. 1 frame to provide support for the No. 1 spring. The No. 1 motor rotates to drive the winding wheel to rotate. The winding wheel rotates to drive the pull rope to move. The pull rope moves to drive the sealing plate to be pulled up through the rotating shaft. The No. 1 spring moves to pull up the sealing plate. The No. 1 port is opened by pulling up the sealing plate. The No. 1 port is opened to allow wind to enter the cabin after being filtered by the filter net, so that the hybrid excitation generator is quickly cooled down, thereby realizing the function of quickly cooling down the hybrid excitation generator of the offshore wind power generation system and improving the power generation stability; 2. The present invention is installed with a processing module to detect that when the temperature is high, the processing module controls the cooling component to start. After the cooling component is started, the temperature sensor continuously detects the real-time working temperature data in the cabin until the processing module detects the bottom temperature state or the appropriate temperature state. When the processing module detects the bottom temperature state, the processing module controls the cooling component not to start or shut down. After the cooling component is not started or shut down, the temperature sensor continuously detects the real-time working temperature data in the cabin until the processing module detects the high temperature state or the appropriate temperature state. When the processing module detects the appropriate temperature state, the processing module controls the cooling component not to start or shut down. After the cooling component is not started or shut down, the temperature sensor continuously detects the real-time working temperature data in the cabin until the processing module detects the bottom temperature state or the high temperature state, thereby realizing the function of timely controlling the offshore wind power generation system at the appropriate working temperature to improve the power generation efficiency; 3. The present invention drives the sealing head to move when the blade is connected to the connecting head through bolts, the sealing head moves to drive the connecting block to move through the No. 3 port, the connecting block moves to drive the slide groove to move through the support of the slider, the connecting block moves to drive the No. 2 spring to move, the No. 2 spring moves to make the sealing head tightly connected with the blade, so as to achieve the function of sealing connection between the blade and the connecting head, improving the sealing performance of the connection, preventing water from entering and corroding the blade connection, and improving the safety of use; 4. The present invention can seal the oil outlet pipe by installing a T-shaped sealing block in cooperation with a sealing ring, and the lubricating oil is added to the collection box through the oil inlet head. The rotation of the No. 5 motor drives the gear to move, the movement of the gear drives the gear rod to move, the movement of the gear rod drives the No. 5 cylinder to move, the movement of the No. 5 cylinder causes the rod to drive the guide head to move, the movement of the guide head drives the T-shaped sealing block to move, the movement of the T-shaped sealing block causes it to remove the sealing ring to open the oil outlet pipe, and the opening of the oil outlet pipe allows the lubricating oil to enter the gear box for automatic lubrication, thereby realizing the function of automatic lubrication of the gear box of the offshore wind power generation system to increase its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a front structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the sealing plate structure of the present invention; Figure 4 For the present invention Figure 3 A structural diagram of ; Figure 5 It is a schematic diagram of the temperature control process of the present invention; Figure 6 It is a schematic diagram of the structure of the temperature sensor of the present invention; Figure 7 It is a schematic diagram of the blade structure of the present invention; Figure 8 It is a schematic diagram of the sealing head structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the collection box of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the B structure.

[0017] In the figure: 1. tower; 2. cabin; 3. bearing; 4. connector; 5. blade; 6. gear box; 7. hybrid excitation generator; 9. adsorption net; 12. No. 3 port; 13. slider; 14. slide; 15. connection block; 16. sealing head; 17. No. 1 plate; 18. No. 2 spring; 19. No. 1 frame; 20. No. 1 spring; 21. sealing plate; 22. No. 1 port; 23. filter net; 24. No. 2 frame; 25. No. 1 motor; 26. winding wheel; 27. pull rope; 28. processing module; 29. ​​temperature sensor; 31. collection box; 32. oil inlet head; 33. oil outlet pipe; 34. sealing ring; 35. T-shaped sealing block; 36. No. 2 rod; 37. No. 5 cylinder; 39. gear rod; 40. No. 5 motor; 41. gear; 42. guide head. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, it can be understood according to the specific situation.

[0021] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , an embodiment provided by the present invention: a hybrid excitation offshore wind power generation system, comprising a tower 1, a nacelle 2, a gearbox 6, a bearing 3, a blade 5, a hybrid excitation generator 7 and a cooling component, the nacelle 2 is installed on the top of the tower 1, the gearbox 6 is installed on the inner wall of the nacelle 2, the bearing 3 is installed through the outer wall of the nacelle 2, the hybrid excitation generator 7 is installed on the inner wall of the nacelle 2, and one end of the bearing 3 is connected to one end of the gearbox 6, and one end of the gearbox 6 is connected to the outer wall of the hybrid excitation generator 7, the cooling component is located on the inner wall of the nacelle 2, the inner wall of the nacelle 2 is installed with a temperature control module, and the outer wall of the bearing 3 is installed with a temperature control module. A connector 4 is installed, a blade 5 is installed on the outer wall of the connector 4 by bolts, a sealing component is installed on the inner wall of the connector 4, a lubrication component is installed through the top of the gearbox 6, the offshore wind drives the blade 5 to rotate, the rotation of the blade 5 drives the bearing 3 to rotate, the rotation of the bearing 3 drives the gearbox 6 to rotate, the rotation of the gearbox 6 drives the hybrid excitation generator 7 to rotate, the hybrid excitation generator 7 rotates to generate electricity, the cooling component includes a No. 1 frame 19, a No. 2 frame 24, a sealing plate 21, a No. 1 spring 20, a filter 23, a No. 1 port 22, a No. 1 motor 25, the No. 1 frame 19 is located on the inner wall of the cabin 2, the No. 1 spring 2 0 is located on the outer wall of the No. 1 frame 19, the outer wall of the sealing plate 21 is connected to the inner wall of the cabin 2 through a rotating shaft, and one end of the No. 1 spring 20 is connected to the outer wall of the sealing plate 21, the No. 2 frame 24 is located on the inner wall of the cabin 2, the No. 1 port 22 is opened at the bottom of the cabin 2, the filter screen 23 is located on the inner wall of the No. 1 port 22, the No. 1 motor 25 is located on the outer wall of the No. 2 frame 24, the output end of the No. 1 motor 25 is installed with a winding wheel 26, the outer wall of the winding wheel 26 is installed with a pull rope 27, and one end of the pull rope 27 is connected to the top of the sealing plate 21, the sealing plate 21 is located above the No. 1 port 22, and the sealing plate 21 is moved in an arc shape by the rotating shaft. The function of the No. 1 frame 19 is to provide support for the No. 1 spring 20. The rotation of the No. 1 motor 25 drives the winding wheel 26 to rotate. The rotation of the winding wheel 26 drives the pull rope 27 to move. The movement of the pull rope 27 drives the sealing plate 21 to be pulled up through the rotating shaft. The sealing plate 21 is pulled up and drives the No. 1 spring 20 to move. The movement of the No. 1 spring 20 causes the sealing plate 21 to be pulled up. The sealing plate 21 is pulled up to open the No. 1 port 22. The opening of the No. 1 port 22 allows the wind to be filtered through the filter net 23 and then enter the cabin 2 to quickly cool down the hybrid excitation generator 7, thereby realizing the function of quickly cooling down the hybrid excitation generator 7 of the offshore wind power generation system and improving the power generation stability.

[0022] Example 2: Please refer to Figure 2 , Figure 5 and Figure 6, an embodiment provided by the present invention: the temperature control module includes a processing module 28 and a temperature sensor 29, the processing module 28 is located on the inner wall of the cabin 2, the temperature sensor 29 is located on the inner wall of the cabin 2, the processing module 28 is electrically connected to the temperature sensor 29, the processing module 28 is electrically connected to the cooling component, the temperature sensor 29 is used to detect the real-time working temperature data in the cabin 2, the processing module 28 has built-in suitable working temperature data in the cabin 2, the suitable working temperature data is 10~60℃, the real-time working temperature data in the cabin 2 is transmitted to the processing module 28, the real-time working temperature data in the cabin 2 is compared with the suitable working temperature data in the cabin 2 through the processing module 28, when the real-time working temperature data in the cabin 2 is greater than the suitable working temperature data in the cabin 2, it is set to a high temperature state, when the real-time working temperature data in the cabin 2 is less than the suitable working temperature data in the cabin 2, it is set to a low temperature state, the real-time working temperature data in the cabin 2 is within the suitable working temperature of the cabin 2 When the temperature data is within the range, it is set to a suitable temperature state. When the processing module 28 detects a high temperature state, the processing module 28 controls the cooling component to start. After the cooling component is started, the temperature sensor 29 continuously detects the real-time working temperature data in the cabin 2 until the processing module 28 detects a low temperature state or a suitable temperature state. When the processing module 28 detects a low temperature state, the processing module 28 controls the cooling component not to start or to turn it off. After the cooling component is not started or turned off, the temperature sensor 29 continuously detects the real-time working temperature data in the cabin 2 until the processing module 28 detects a high temperature state or a suitable temperature state. When the processing module 28 detects a suitable temperature state, the processing module 28 controls the cooling component not to start or to turn it off. After the cooling component is not started or turned off, the temperature sensor 29 continuously detects the real-time working temperature data in the cabin 2 until the processing module 28 detects a low temperature state or a high temperature state, thereby realizing the function of timely controlling the offshore wind power generation system at a suitable working temperature to improve the power generation efficiency.

[0023] Example 3: Please refer to Figure 1 , Figure 7 and Figure 8, an embodiment provided by the present invention: a sealing assembly includes an adsorption net 9, a No. 1 plate 17, a No. 2 spring 18, a connecting block 15, a No. 3 port 12, and a sealing head 16, the adsorption net 9 is located on the inner wall of the connecting head 4, the No. 1 plate 17 is located on the inner wall of the connecting head 4, the No. 2 spring 18 is located on the outer wall of the No. 1 plate 17, the No. 3 port 12 is opened on the outer wall of the connecting head 4, the connecting block 15 runs through the inner wall of the No. 3 port 12, and one end of the No. 2 spring 18 is connected to the outer wall of the connecting block 15, the sealing head 16 is located on the outer wall of the connecting block 15, the inner wall of the No. 3 port 12 is installed with a slider 13, the outer wall of the connecting block 15 is provided with a slide groove 14, and the slider 13 is located at the outer wall of the connecting head 4. The sealing head 16 is located at one end of the blade 5. When the blade 5 is connected to the connecting head 4 by bolts, the sealing head 16 is driven to move. The sealing head 16 moves to drive the connecting block 15 to move through the No. 3 port 12. The connecting block 15 moves to drive the slide 14 to move through the support of the slider 13. The connecting block 15 moves to drive the No. 2 spring 18 to move. The No. 2 spring 18 moves to make the sealing head 16 tightly connected with the blade 5, thereby realizing the function of sealing the blade 5 and the connecting head 4 to improve the sealing performance of the connection, prevent water from entering and corroding the connection of the blade 5, and improve the safety of use.

[0024] Example 4: Please refer to Figure 2 , Fig. 9 and Fig.10, an embodiment provided by the present invention: the lubrication assembly includes a collection box 31, an oil inlet head 32, an oil outlet pipe 33, a T-shaped sealing block 35, a sealing ring 34, a guide head 42, a No. 2 rod 36, and a No. 5 motor 40, the collection box 31 is located at the top of the gear box 6, the oil inlet head 32 passes through the outer wall of the collection box 31, the oil outlet pipe 33 passes through the outer wall of the collection box 31, and one end of the oil outlet pipe 33 extends to the inner wall of the gear box 6, the T-shaped sealing block 35 passes through one end of the oil outlet pipe 33, the sealing ring 34 is located on the inner wall of the oil outlet pipe 33, the guide head 42 is located at one end of the T-shaped sealing block 35, the No. 2 rod 36 is located on the inner wall of the gear box 6, the outer wall of the No. 2 rod 36 is installed with a No. 5 cylinder 37, the outer wall of the No. 5 cylinder 37 is installed with a gear rod 39, the No. 5 motor 40 is located on the inner wall of the gear box 6, and the output end of the No. 5 motor 40 is installed with a gear 41, and the gear rod 39 is meshed with the gear 41, one end of the gear rod 39 is connected to the outer wall of the guide head 42, the No. 5 cylinder 37 is moved by the support of the No. 2 rod 36, the T-shaped sealing block 35 cooperates with the sealing ring 34 to seal the oil outlet pipe 33, and the lubricating oil is added to the collection box 31 through the oil inlet head 32, the No. 5 motor 40 rotates to drive the gear 41 to move, the gear 41 moves to drive the gear rod 39 to move, the gear rod 39 moves to drive the No. 5 cylinder 37 to move, the No. 5 cylinder 37 moves to make the rod 39 drive the guide head 42 to move, the guide head 42 moves to drive the T-shaped sealing block 35 to move, the T-shaped sealing block 35 moves to remove the sealing ring 34 to open the oil outlet pipe 33, the oil outlet pipe 33 is opened to allow the lubricating oil to enter the gear box 6 to be automatically lubricated, thereby realizing the function of automatic lubrication and improving the service life of the gear box 6 of the offshore wind power generation system.

[0025] The power generation method of the wind power generation system comprises the following steps: Step S1, the function of the No. 1 frame 19 is to provide support for the No. 1 spring 20, the No. 1 motor 25 rotates to drive the winding wheel 26 to rotate, the winding wheel 26 rotates to drive the pull rope 27 to move, the pull rope 27 moves to drive the sealing plate 21 to be pulled up through the rotating shaft, the sealing plate 21 is pulled up to drive the No. 1 spring 20 to move, the No. 1 spring 20 moves to pull up the sealing plate 21, the sealing plate 21 is pulled up to open the No. 1 port 22, the No. 1 port 22 is opened to allow wind to pass through the filter 23 and then enter the cabin 2 to quickly cool down the hybrid excitation generator 7, thereby realizing the function of quickly cooling down the hybrid excitation generator 7 of the offshore wind power generation system and improving the power generation stability; Step S2, when the processing module 28 detects a high temperature state, the processing module 28 controls the cooling component to start. After the cooling component is started, the temperature sensor 29 continuously detects the real-time working temperature data in the cabin 2 until the processing module 28 detects a low temperature state or a suitable temperature state. When the processing module 28 detects a low temperature state, the processing module 28 controls the cooling component not to start or to shut down. After the cooling component is not started or shut down, the temperature sensor 29 continuously detects the real-time working temperature data in the cabin 2 until the processing module 28 detects a high temperature state or a suitable temperature state. When the processing module 28 detects a suitable temperature state, the processing module 28 controls the cooling component not to start or to shut down. After the cooling component is not started or shut down, the temperature sensor 29 continuously detects the real-time working temperature data in the cabin 2 until the processing module 28 detects a low temperature state or a high temperature state, thereby realizing the function of timely controlling the offshore wind power generation system at a suitable working temperature to improve the power generation efficiency; Step S3, when the blade 5 is connected to the connector 4 by bolts, the sealing head 16 is driven to move, the sealing head 16 is driven to move the connecting block 15 through the No. 3 port 12, the connecting block 15 is driven to move the slide 14 through the support of the slider 13, the connecting block 15 is driven to move the No. 2 spring 18, the No. 2 spring 18 is moved to make the sealing head 16 tightly connected with the blade 5, so as to realize the function of sealing connection between the blade 5 and the connector 4, improve the sealing performance of the connection, prevent water from entering and corroding the connection of the blade 5, and improve the safety of use; Step S4, the T-shaped sealing block 35 cooperates with the sealing ring 34 to seal the oil outlet pipe 33, and the lubricating oil is added to the collection box 31 through the oil inlet head 32, and the No. 5 motor 40 rotates to drive the gear 41 to move, the movement of the gear 41 drives the gear rod 39 to move, the movement of the gear rod 39 drives the No. 5 cylinder 37 to move, the movement of the No. 5 cylinder 37 causes the rod 39 to drive the guide head 42 to move, the movement of the guide head 42 drives the T-shaped sealing block 35 to move, the T-shaped sealing block 35 moves to remove the sealing ring 34 to open the oil outlet pipe 33, and the oil outlet pipe 33 is opened to allow the lubricating oil to enter the gear box 6 for automatic lubrication, thereby realizing the function of automatic lubrication of the gear box 6 of the offshore wind power generation system to improve the service life.

[0026] Working principle: the function of the No. 1 frame 19 is to provide support for the No. 1 spring 20. The rotation of the No. 1 motor 25 drives the winding wheel 26 to rotate. The rotation of the winding wheel 26 drives the pull rope 27 to move. The movement of the pull rope 27 drives the sealing plate 21 to be pulled up through the rotating shaft. The sealing plate 21 is pulled up to drive the No. 1 spring 20 to move. The movement of the No. 1 spring 20 causes the sealing plate 21 to be pulled up. The sealing plate 21 is pulled up to open the No. 1 port 22. The opening of the No. 1 port 22 allows the wind to pass through the filter 23 and then enter the cabin 2 to quickly cool down the hybrid excitation generator 7, thereby realizing the function of quickly cooling down the hybrid excitation generator 7 of the offshore wind power generation system to improve the power generation stability. When the processing module 28 detects that the temperature is high, the processing module 28 The cooling component is controlled to start. After the cooling component is started, the temperature sensor 29 continuously detects the real-time working temperature data in the cabin 2 until the processing module 28 detects the low temperature state or the appropriate temperature state. When the processing module 28 detects the low temperature state, the processing module 28 controls the cooling component not to start or shut down. After the cooling component is not started or shut down, the temperature sensor 29 continuously detects the real-time working temperature data in the cabin 2 until the processing module 28 detects the high temperature state or the appropriate temperature state. When the processing module 28 detects the appropriate temperature state, the processing module 28 controls the cooling component not to start or shut down. After the cooling component is not started or shut down, the temperature sensor 29 continuously detects the real-time working temperature data in the cabin 2. The working temperature data is stored until the processing module 28 detects the low temperature state or the high temperature state, so that the offshore wind power generation system can be timely controlled at a suitable working temperature to improve the power generation efficiency. When the blade 5 is connected to the connector 4 by bolts, the sealing head 16 is driven to move. The movement of the sealing head 16 drives the connecting block 15 to move through the No. 3 port 12. The movement of the connecting block 15 drives the slide 14 to move through the support of the slider 13. The movement of the connecting block 15 drives the No. 2 spring 18 to move. The movement of the No. 2 spring 18 makes the sealing head 16 tightly connected with the blade 5, so that the blade 5 is sealed and connected with the connector 4, the connection sealing is improved, the water source is prevented from entering and corroding the connection of the blade 5, and the safety is improved. The function of sexual use is that the T-shaped sealing block 35 cooperates with the sealing ring 34 to seal the oil outlet pipe 33, and the lubricating oil is added to the collection box 31 through the oil inlet head 32. The No. 5 motor 40 rotates to drive the gear 41 to move, the movement of the gear 41 drives the gear rod 39 to move, the movement of the gear rod 39 drives the No. 5 cylinder 37 to move, the movement of the No. 5 cylinder 37 causes the rod 39 to drive the guide head 42 to move, the movement of the guide head 42 drives the T-shaped sealing block 35 to move, the T-shaped sealing block 35 moves to remove the sealing ring 34 to open the oil outlet pipe 33, and the oil outlet pipe 33 is opened to allow the lubricating oil to enter the gear box 6 for automatic lubrication, thereby realizing the function of automatic lubrication of the gear box 6 of the offshore wind power generation system to improve the service life.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A hybrid excitation offshore wind power generation system, comprising a tower (1), a nacelle (2), a gearbox (6), a bearing (3), a blade (5), a hybrid excitation generator (7) and a cooling component, characterized in that: A cabin (2) is installed on the top of the tower (1), a gearbox (6) is installed on the inner wall of the cabin (2), a bearing (3) is installed through the outer wall of the cabin (2), a hybrid excitation generator (7) is installed on the inner wall of the cabin (2), one end of the bearing (3) is connected to one end of the gearbox (6), one end of the gearbox (6) is connected to the outer wall of the hybrid excitation generator (7), the cooling component is located on the inner wall of the cabin (2), a temperature control module is installed on the inner wall of the cabin (2), a connector (4) is installed on the outer wall of the bearing (3), and a blade (5) is installed on the outer wall of the connector (4) via bolts; The cooling assembly comprises a No. 1 frame (19), a No. 2 frame (24), a sealing plate (21), a No. 1 spring (20), a filter screen (23), a No. 1 port (22), and a No. 1 motor (25); the No. 1 frame (19) is located on the inner wall of the cabin (2); the No. 1 spring (20) is located on the outer wall of the No. 1 frame (19); the outer wall of the sealing plate (21) is connected to the inner wall of the cabin (2) via a rotating shaft; and one end of the No. 1 spring (20) is connected to the outer wall of the sealing plate (21). The second frame (24) is located on the inner wall of the cabin (2), the first port (22) is opened at the bottom of the cabin (2), the filter screen (23) is located on the inner wall of the first port (22), the first motor (25) is located on the outer wall of the second frame (24), the output end of the first motor (25) is equipped with a winding wheel (26), the outer wall of the winding wheel (26) is equipped with a pull rope (27), and one end of the pull rope (27) is connected to the top of the sealing plate (21).

2. A hybrid excitation offshore wind power generation system according to claim 1, characterized in that: The sealing plate (21) is located above the No. 1 opening (22), and the sealing plate (21) moves in an arc shape via a rotating shaft.

3. A hybrid excitation offshore wind power generation system according to claim 1, characterized in that: The temperature control module comprises a processing module (28) and a temperature sensor (29); the processing module (28) is located on the inner wall of the cabin (2); the temperature sensor (29) is located on the inner wall of the cabin (2); the processing module (28) is electrically connected to the temperature sensor (29); the processing module (28) is electrically connected to the cooling component; the temperature sensor (29) is used to detect real-time operating temperature data in the cabin (2); the processing module (28) is built with appropriate operating temperature data in the cabin (2); the appropriate operating temperature data is 10-60°C.

4. A hybrid excitation offshore wind power generation system according to claim 3, characterized in that: The real-time operating temperature data in the cabin (2) is transmitted to the processing module (28), and the real-time operating temperature data in the cabin (2) is compared with the appropriate operating temperature data in the cabin (2) by the processing module (28). When the real-time operating temperature data in the cabin (2) is greater than the appropriate operating temperature data in the cabin (2), it is set to a high temperature state; when the real-time operating temperature data in the cabin (2) is less than the appropriate operating temperature data in the cabin (2), it is set to a low temperature state; when the real-time operating temperature data in the cabin (2) is within the appropriate operating temperature data in the cabin (2), it is set to a suitable temperature state.

5. A hybrid excitation offshore wind power generation system according to claim 1, characterized in that: A sealing component is installed on the inner wall of the connector (4), and a lubrication component is installed through the top of the gear box (6).

6. A hybrid excitation offshore wind power generation system according to claim 5, characterized in that: The sealing assembly comprises an adsorption net (9), a No. 1 plate (17), a No. 2 spring (18), a connecting block (15), a No. 3 port (12), and a sealing head (16); the adsorption net (9) is located on the inner wall of the connecting head (4); the No. 1 plate (17) is located on the inner wall of the connecting head (4); the No. 2 spring (18) is located on the outer wall of the No. 1 plate (17); the No. 3 port (12) is opened on the outer wall of the connecting head (4); the connecting block (15) passes through the inner wall of the No. 3 port (12); one end of the No. 2 spring (18) is connected to the outer wall of the connecting block (15); the sealing head (16) is located on the outer wall of the connecting block (15); a slider (13) is installed on the inner wall of the No. 3 port (12); a slide groove (14) is opened on the outer wall of the connecting block (15); and the slider (13) is located in the slide groove (14).

7. A hybrid excitation offshore wind power generation system according to claim 6, characterized in that: The slide groove (14) moves by being supported by the slider (13), the No. 1 cylinder (11) moves by being supported by the No. 1 rod (10), and the sealing head (16) is located at one end of the blade (5).

8. A hybrid excitation offshore wind power generation system according to claim 5, characterized in that: The lubrication assembly comprises a collection box (31), an oil inlet head (32), an oil outlet pipe (33), a T-shaped sealing block (35), a sealing ring (34), a guide head (42), a No. 2 rod (36), and a No. 5 motor (40). The collection box (31) is located on the top of the gear box (6). The oil inlet head (32) penetrates the outer wall of the collection box (31). The oil outlet pipe (33) penetrates the outer wall of the collection box (31), and one end of the oil outlet pipe (33) extends to the inner wall of the gear box (6). The T-shaped sealing block (35) penetrates one end of the oil outlet pipe (33). The sealing ring (34) is located on the inner wall of the oil outlet pipe (33), the guide head (42) is located at one end of the T-shaped sealing block (35), the No. 2 rod (36) is located on the inner wall of the gear box (6), the No. 5 cylinder (37) is installed on the outer wall of the No. 2 rod (36), the No. 5 cylinder (37) is installed on the outer wall of the No. 5 cylinder (37), the No. 5 motor (40) is located on the inner wall of the gear box (6), the output end of the No. 5 motor (40) is installed with a gear (41), and the gear (39) is meshed with the gear (41), and one end of the gear (39) is connected to the outer wall of the guide head (42).

9. A hybrid excitation offshore wind power generation system according to claim 8, characterized in that: The No. 5 cylinder (37) is moved by being supported by the No. 2 rod (36), and the T-shaped sealing block (35) cooperates with the sealing ring (34) to seal the oil outlet pipe (33).

10. A power generation method of a hybrid excitation offshore wind power generation system, applicable to a hybrid excitation offshore wind power generation system according to any one of claims 1 to 9, characterized in that: The power generation method of the wind power generation system comprises the following steps: Step S1, the function of the No. 1 frame (19) is to provide support for the No. 1 spring (20), the No. 1 motor (25) rotates to drive the winding wheel (26) to rotate, the winding wheel (26) rotates to drive the pull rope (27) to move, the pull rope (27) moves to drive the sealing plate (21) to be pulled up through the rotating shaft, the sealing plate (21) is pulled up to drive the No. 1 spring (20) to move, the No. 1 spring (20) moves to pull up the sealing plate (21), the sealing plate (21) is pulled up to open the No. 1 port (22), the No. 1 port (22) is opened to allow wind to pass through the filter (23) and then enter the cabin (2) to quickly cool down the hybrid excitation generator (7), thereby realizing the function of quickly cooling down the hybrid excitation generator (7) of the offshore wind power generation system and improving the power generation stability; Step S2: When the processing module (28) detects a high temperature state, the processing module (28) controls the cooling component to start. After the cooling component is started, the temperature sensor (29) continuously detects the real-time operating temperature data in the engine room (2) until the processing module (28) detects a low temperature state or a suitable temperature state. When the processing module (28) detects a low temperature state, the processing module (28) controls the cooling component not to start or to shut down. After the cooling component is not started or shut down, the temperature sensor (29) continuously detects the real-time operating temperature data in the engine room (2) until the processing module (28) detects a high temperature state or a suitable temperature state. When the processing module (28) detects a suitable temperature state, the processing module (28) controls the cooling component not to start or to shut down. After the cooling component is not started or shut down, the temperature sensor (29) continuously detects the real-time operating temperature data in the engine room (2) until the processing module (28) detects a low temperature state or a high temperature state, thereby realizing the function of timely controlling the offshore wind power generation system at a suitable operating temperature to improve the power generation efficiency. Step S3, when the blade (5) and the connecting head (4) are connected by bolts, the sealing head (16) is driven to move, the sealing head (16) is driven to move the connecting block (15) through the No. 3 port (12), the connecting block (15) is driven to move the slide groove (14) through the support of the slider (13), the connecting block (15) is driven to move the No. 2 spring (18), the No. 2 spring (18) is driven to make the sealing head (16) tightly connected to the blade (5), so as to realize the function of sealing connection between the blade (5) and the connecting head (4), improve the sealing property of the connection, prevent water from entering and corroding the connection of the blade (5), and improve the safety of use; Step S4, the T-shaped sealing block (35) cooperates with the sealing ring (34) to seal the oil outlet pipe (33), the lubricating oil is added to the collecting box (31) through the oil inlet head (32), the No. 5 motor (40) rotates to drive the gear (41) to move, the gear (41) moves to drive the gear rod (39), the gear rod (39) moves to drive the No. 5 cylinder (37), the No. 5 cylinder (37) moves to make the rod (39) drive the guide head (42) to move, the guide head (42) moves to drive the T-shaped sealing block (35), the T-shaped sealing block (35) moves to remove the sealing ring (34) to open the oil outlet pipe (33), the oil outlet pipe (33) is opened to allow the lubricating oil to enter the gear box (6) to be automatically lubricated, thereby realizing the function of automatic lubrication of the gear box (6) of the offshore wind power generation system to improve the service life.

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