Track sliding type wind energy and wave energy combined power generation device and control method

Abstract

The invention discloses a rail sliding type wind energy and wave energy combined power generation device and a control method, and relates to the technical field of offshore power generation platforms, the rail sliding type wind energy and wave energy combined power generation device comprises a wave energy power generation device, a semi-submersible platform base, a wind turbine generator and a rail positioning key groove; wherein the semi-submersible platform base is of a triangular framework, and a rail positioning key groove of a V-shaped structure is formed in the triangular framework; the wave energy power generation device comprises a wave facing panel and a dolphin type wave absorbing floating body; the wave-facing panel comprises a fixed plate block, a sensor arranged on the front surface of the fixed plate block, controller cabins arranged at two ends of the fixed plate block and adjustable pre-tightening keys arranged at the top ends of the controller cabins; the controller cabin is arranged in the track positioning key groove; and the dolphin-type wave-absorbing floating body is arranged on the front surface of the fixed plate. The technical problem of low resource utilization rate in the prior art is relieved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore power generation platforms, and in particular to a track sliding type wind energy and wave energy combined power generation device and a control method. Background Art

[0002] Existing onshore wind power and offshore fixed wind power technologies are relatively mature and can achieve efficient wind energy capture and power conversion. However, floating wind power started relatively late, and the in-depth research and large-scale application of related technologies have not yet entered the fast lane. The floating platform used to support wind turbines is large in size and highly redundant, and there is a certain space for transformation and utilization. Existing floating wind power and wave power generation devices still have technical problems of low resource utilization, and cannot fully utilize offshore wave energy resources. The overall power generation efficiency of offshore platform equipment still has room for improvement. Summary of the invention

[0003] The purpose of the present invention is to provide a track sliding type wind and wave energy combined power generation device and a control method in order to solve at least one of the above technical problems.

[0004] In the first aspect, an embodiment of the present invention provides a track sliding type wind energy and wave energy combined power generation device, comprising: a wave energy power generation device, a semi-submersible platform seat, a wind turbine and a track positioning key slot; wherein the semi-submersible platform seat is a triangular structure, the wave energy device control cabin is arranged at the two vertices of the triangular structure, and the wind turbine bottom column working cabin is arranged at the third vertex of the triangular structure; the wind turbine is mounted at a position above the wind turbine bottom column working cabin; the track positioning key slot with a V-shaped structure is arranged on the two frame sides of the triangular structure adjacent to the wind turbine bottom column working cabin; the wave energy power generation device comprises a wave-facing panel and a dolphin-type wave-absorbing float; the wave-facing panel comprises a fixed plate, a device A sensor is placed on the front of the fixed plate, a controller cabin is arranged at both ends of the fixed plate and an adjustable pre-tightening key is arranged on the top of the controller cabin; the controller cabin is arranged in the track positioning key slot; the dolphin-type wave-absorbing floating body is arranged on the front of the fixed plate; the sensor is used to obtain the wave parameters passing through the fixed plate; the controller cabin is used to control the movement of the wave-facing panel on the track positioning key slot based on the wave parameters, so as to control the wave-facing angle of the wave energy power generation device within a preset range; the adjustable pre-tightening key is used to fix the positioning of the wave-facing panel relative to the track positioning key slot; the dolphin-type wave-absorbing floating body is used to convert wave energy into hydraulic energy and mechanical energy.

[0005] Furthermore, the wind turbine unit includes: a tower, a hub, a nacelle and blades; wherein the blades and the hub are fastened together by bolts to form a wind wheel, and the wind wheel is connected to the nacelle through a main shaft; the nacelle is fixed to the top position of the tower, and the tower is mounted on the semi-submersible platform seat; a yaw system is arranged in the nacelle; the wind wheel is used to capture wind energy; the yaw system is used to monitor the incoming wind direction, and control the rotation of the nacelle based on the incoming wind direction, so that the wind wheel is perpendicular to the incoming wind direction.

[0006] Furthermore, the wave energy device control cabin includes a wave energy device control room, a battery compartment, a hydraulic generator room, a ballast tank and an anchor chain compartment; the wind turbine bottom column working cabin includes a wind turbine control room, a battery compartment, a ballast tank and an anchor chain compartment; the ballast tank is used to adjust the balance and stability of the semi-submersible platform seat.

[0007] Furthermore, the dolphin-type wave-absorbing float includes: a hinged plate, a hydraulic cylinder, a piston rod, a connecting rod, a dolphin-type float and a spring; wherein the dolphin-type float is hingedly fixed to the fixed plate through the hinged plate; the middle part of the dolphin-type float is movably connected to the hinged plate through the connecting rod; the bottom of the dolphin-type float is connected to the connecting rod through the piston rod, the spring and the hydraulic cylinder; the connecting rod is also connected to the hinged plate through the piston rod and the hydraulic cylinder.

[0008] Furthermore, the track positioning key slot is a double track setting, and a displacement sensor is installed on the track positioning key slot at a preset distance; the displacement sensor is used to track the position of the wave energy power generation device.

[0009] In the second aspect, an embodiment of the present invention further provides a control method for a track sliding type wind energy and wave energy combined power generation device, which is applied to the track sliding type wind energy and wave energy combined power generation device described in the first aspect; comprising: obtaining the current operating condition of the track sliding type wind energy and wave energy combined power generation device; the current operating condition includes the current wind speed and the current wave height; judging whether the current operating condition is within a preset working range; if so, controlling the wind rotor of the wind turbine to face the wind direction, and controlling the wave energy power generation device to slide in the track positioning key slot so that the wave-facing panel faces the incoming wave direction; if not, controlling the wind rotor of the wind turbine to stop rotating, locking the wind turbine to face the wind direction from the front, and controlling the dolphin-type wave-absorbing float to fold and shrink to be close to the wave-facing panel, and controlling the wave-facing panel to be parallel to the incoming wave direction.

[0010] Furthermore, it also includes: if the current working condition is an extreme sea condition, controlling the semi-submersible platform seat to dive until the water surface submerges the dolphin-type wave-absorbing buoy.

[0011] The present invention provides a track sliding type wind energy and wave energy combined power generation device and control method, which combines an offshore wind power generation platform with a wave energy power generation device to achieve efficient utilization of the power generation platform; at the same time, according to the complex and diverse directions of energy sources in different sea areas and the analysis of sea condition data, a variable energy capture device is arranged in a targeted manner, including a variable wind turbine set and a variable wave energy device, which reduces the cost of overall equipment construction while achieving efficient energy capture, and alleviates the technical problem of low resource utilization existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 A schematic diagram of the overall structure of a track sliding type wind and wave energy combined power generation device provided by an embodiment of the present invention;

[0014] Figure 2 A schematic diagram of a semi-submersible platform provided in an embodiment of the present invention;

[0015] Figure 3 A schematic diagram of a wave-facing panel provided by an embodiment of the present invention;

[0016] Figure 4 A schematic diagram of a yaw system provided by an embodiment of the present invention;

[0017] Figure 5 A schematic cross-sectional view of a control cabin of a wave energy device provided by an embodiment of the present invention;

[0018] Figure 6 A cross-sectional schematic diagram of a bottom column working cabin of a wind turbine generator set provided by an embodiment of the present invention;

[0019] Figure 7 A schematic diagram of a dolphin-type wave-absorbing floating body provided in an embodiment of the present invention;

[0020] Figure 8 A flow chart of a control method for a track sliding type wind and wave energy combined power generation device provided by an embodiment of the present invention;

[0021] Fig. 9 A schematic diagram of a wave energy power generation device adjusting its direction according to the direction of waves provided in an embodiment of the invention;

[0022] Fig.10A flow chart of a method for controlling the swing angle of a wave energy device provided in an embodiment of the invention.

[0023] In the figure: 1. track positioning keyway, 2. wave energy power generation device, 21. fixed plate, 22. sensor, 23. controller cabin, 24. adjustable preload key, 25. hinge plate, 26. hydraulic cylinder, 27. piston rod, 28. connecting rod, 29. dolphin-type float, 30. spring, 3. semi-submersible platform seat, 31. wave energy device control cabin, 32. wind turbine bottom column working cabin, 4. tower, 5. hub, 6. nacelle, 7. blade. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1

[0026] Figure 1 1 is a schematic diagram of the overall structure of a track sliding type wind and wave energy combined power generation device provided according to an embodiment of the present invention. Figure 1 As shown, the device comprises: a track positioning keyway 1, a wave energy power generation device 2, a semi-submersible platform seat 3 and a wind turbine generator set.

[0027] Figure 2 Schematic diagram of a semi-submersible platform provided according to an embodiment of the present invention. Figure 2 As shown, the semi-submersible platform seat 3 is a triangular structure, preferably, the triangular structure is a hollow design, and has good wave permeability. The semi-submersible platform seat 3 is used to connect and fix the wind turbine and the wave energy power generation device 2.

[0028] Specifically, Figure 2 As shown, the wave energy device control cabins 31 are arranged at the two vertices of the triangular structure, and the wind turbine bottom column working cabin 32 is arranged at the third vertex of the triangular structure; the wind turbine is mounted above the wind turbine bottom column working cabin 32.

[0029] Specifically, Figure 2 As shown, two frame sides of the triangular structure adjacent to the wind turbine bottom column working cabin 32 are provided with V-shaped track positioning key grooves 1, so that the wave energy generating device 2 can absorb wave energy from different angles.

[0030] Specifically, the wave energy power generation device 2 includes a wave-facing panel and a dolphin-type wave-absorbing floating body.

[0031] Figure 3 Schematic diagram of a wave-facing panel provided according to an embodiment of the present invention. Figure 3 As shown, the wave-facing panel includes a fixed plate 21, a sensor 22 arranged on the front side of the fixed plate 21, a controller cabin 23 arranged at both ends of the fixed plate 21, and an adjustable pre-tightening key 24 arranged at the top of the controller cabin 23; wherein, the controller cabin 23 is arranged in the track positioning key slot 1; and the dolphin-type wave-absorbing float is arranged on the front side of the fixed plate 21.

[0032] Specifically, in the embodiment of the present invention, the fixed plate 21 is used to place the wave energy power generation device 2 perpendicular to the water surface, and efficiently capture energy by moving along the track positioning key slot 1.

[0033] The sensor 22 is used to obtain the wave parameters passing through the fixed plate; wherein the wave parameters include wave height, wave period, wave direction, etc.

[0034] The controller cabin 23 is used to control the movement of the wave-facing panel on the track positioning key slot 1 based on wave parameters, so as to control the wave-facing angle of the wave energy power generation device 2 within a preset range.

[0035] Specifically, the controller cabin 23 can not only control the working angle and self-locking function of the wave energy power generation device 2 , but also control the movement trajectory and speed of the wave-facing panel on the track positioning key slot 1 .

[0036] The adjustable pre-tightening key 24 is used to fix the position of the wave-facing panel relative to the track positioning key slot 1, which is equivalent to a braking system, and can make the wave energy power generation device 2 run more smoothly and safely.

[0037] Specifically, the dolphin-type wave-absorbing buoy is used to convert wave energy into hydraulic energy and mechanical energy.

[0038] Specifically, Figure 1 As shown, the wind turbine generator set includes: a tower 4, a hub 5, a nacelle 6 and blades 7. The blades 7 and the hub 5 are fastened together by bolts to form a wind wheel, and the wind wheel is connected to the nacelle 6 through a main shaft; under normal operating conditions, the wind wheel rotates around the main shaft. The nacelle 6 is fixed to the top of the tower 4, and the tower 4 is mounted on the semi-submersible platform seat 3; the top of the tower 4 also has a yaw system.

[0039] Specifically, wind rotors are used to capture wind energy.

[0040] The yaw system is used to monitor the incoming wind direction and control the rotation of the nacelle 6 based on the incoming wind direction so that the wind wheel is perpendicular to the incoming wind direction.

[0041] Figure 4 is a schematic diagram of a yaw system provided according to an embodiment of the present invention. Figure 4As shown, the yaw system mainly includes sensing components, transmission components (yaw gear ring), control components (yaw drive device) and other auxiliary components (side bearings, pad retaining devices), etc. The sensing element transmits the change of wind direction to the processor of the control loop of the yaw motor using an electrical signal. After comparison, the processor sends a clockwise or counterclockwise yaw command to the yaw motor, and the transmission component drives the wind wheel to yaw towards the wind. When the wind is facing, the motor stops working and the yaw process ends.

[0042] Specifically, when the angle between the incoming wind direction detected by the sensing component and the rotor rotation plane deviates greatly from 90°, the control system issues a command to control the yaw motor to drive the nacelle to rotate a certain angle, ensuring that the wind turbine rotor is always perpendicular to the incoming wind direction, thereby achieving efficient wind energy capture.

[0043] Specifically, in the embodiment of the present invention, the yaw system is placed on the top of the wind turbine tower 4 to control the wind rotor to turn to capture maximum energy.

[0044] Figure 5 is a cross-sectional schematic diagram of a control cabin of a wave energy device provided according to an embodiment of the present invention, Figure 6 FIG. 1 is a cross-sectional schematic diagram of a wind turbine base column working cabin provided according to an embodiment of the present invention. Figure 5 and Figure 6 As shown, the wave energy device control cabin 31 includes a wave energy device control room, a hydraulic generator room, a ballast tank and an anchor chain locker; the wind turbine bottom column working cabin 32 includes a wind turbine control room, a battery compartment, a ballast tank and an anchor chain locker. The ballast tank is used to adjust the balance and stability of the semi-submersible platform seat 3, and the wave energy device control room is used to control the working mode, power, hydraulic pressure and monitoring system of the wave energy power generation device 2.

[0045] Preferably, the track positioning key slot 1 is a double track setting, and a displacement sensor is installed on the track positioning key slot 1 at a preset distance; the displacement sensor is used to track the position of the wave energy power generation device.

[0046] Figure 7 Schematic diagram of a dolphin-type wave-absorbing floating body provided according to an embodiment of the present invention. Figure 7 As shown, the dolphin-type wave-absorbing floating body includes: a hinge plate 25, a hydraulic cylinder 26, a piston rod 27, a connecting rod 28, a dolphin-type floating body 29 and a spring 30. Specifically, as Figure 7 As shown, the dolphin-type float 29 is hingedly fixed to the fixed plate 21 through the hinge plate 25; the middle part of the dolphin-type float 29 is movably connected to the hinge plate 25 through the connecting rod 28; the bottom of the dolphin-type float 29 is connected to the connecting rod 28 through the piston rod 27, the spring 30 and the hydraulic cylinder 26; the connecting rod 28 is also connected to the hinge plate 25 through the piston rod 27 and the hydraulic cylinder 26.

[0047] Specifically, under the action of wave load, the dolphin-type float 29 moves upward, driving the piston rod 27, the hydraulic cylinder 26 and the spring 30 to compress, converting wave energy into hydraulic energy and spring mechanical energy; when the dolphin-type float 29 moves upward to a certain extent, the wave load is not enough to continue to do work on the dolphin-type float 29, and the spring 30 pushes the dolphin-type float 29 to return to its initial position, starting the next wave energy capture-conversion cycle.

[0048] Embodiment 2

[0049] Figure 8 1 is a flow chart of a control method of a track sliding type wind energy and wave energy combined power generation device provided in an embodiment of the present invention, and the method is applied to the track sliding type wind energy and wave energy combined power generation device provided in an embodiment of the present invention. Figure 8 As shown, the control method specifically includes the following steps:

[0050] Step S802, obtaining the current operating condition of the track sliding wind and wave combined power generation device; the current operating condition includes the current wind speed and the current wave height.

[0051] Step S804, determine whether the current working condition is within the preset working range; if yes, execute step S806; if not, execute step S808.

[0052] Step S806, controlling the wind turbine rotor to face the wind direction, and controlling the wave energy generating device to slide in the track positioning key slot, so that the wave-facing panel faces the incoming wave direction.

[0053] Step S808, controlling the wind turbine rotor to stop rotating, locking the wind turbine to face the wind direction, controlling the dolphin-type wave-absorbing float to fold and shrink close to the wave-facing panel, and controlling the wave-facing panel to be parallel to the incoming wave direction.

[0054] Fig. 9 FIG. 1 is a schematic diagram of a wave energy power generation device that adjusts its direction according to the direction of waves according to an embodiment of the present invention. Fig. 9 As shown in the figure, when the wind speed and wave height are within the working range, the wind rotor of the wind turbine is aligned with the wind direction, driving the generator to rotate and generate electricity through rotation. When the wind direction changes, the yaw system on the wind turbine adjusts the direction of the wind rotor so that it can quickly and smoothly align with the wind direction, thereby achieving efficient capture of wind energy. At the same time, the dolphin-type wave-absorbing float will also perform work, and the thrust of the waves will drive the wave-absorbing float to move. The control system adjusts the position of the wave-facing panel block so that the front of the wave-absorbing float is aligned with the incoming wave direction, thereby achieving efficient capture of wave energy.

[0055] Waves are random and the direction of waves changes frequently. In order to avoid the reduction of structural fatigue life or the loss of benefits from adjusting the direction due to frequent adjustment of the direction of wave energy devices, and considering the high maintenance cost of the device and factors such as safety and stability, it is recommended that the swing amplitude of the wave-facing panel be less than 30°, at which time the incoming wave energy is 75% of the frontal wave. The control system can make the orientation of wind turbines and wave energy devices relatively independent and independently adjustable, so that wind turbines, wave energy devices and wind and wave resources can be moved with each other, and wind and wave energy resources can be captured efficiently.

[0056] Specifically, when the wind speed or wave height exceeds the working range, the wind turbine and wave energy device will stop working accordingly. The wind turbine is equipped with a wind speed monitoring system that can monitor the change of wind speed in real time. When the wind speed reaches a certain safety threshold, the generator will automatically enter the protection mode. When a destructive typhoon hits, the wind speed exceeds the working wind speed range of the wind turbine. Under the action of the control system, the blades of the wind turbine stop rotating, and after yaw, they are locked to face the typhoon head-on. The blades are pitched to minimize the wind-receiving area to reduce the force; in extreme sea conditions, the wave height exceeds the working range of the wave energy device. Under the action of the control system, the wave-absorbing float is folded and retracted to the wave-facing panel block, so that the wave-facing panel block is parallel to the incoming wave direction, locked and fixed, and the wave-facing area is minimized to reduce the wave load; by adjusting the spatial orientation of the wind turbine and the wave energy device, the windward and wave-facing areas are minimized to reduce the wind-wave load and improve the safety and reliability of the device.

[0057] Specifically, Fig.10 1 is a flow chart of a method for controlling the swing angle of a wave energy device according to an embodiment of the present invention. Fig.10 As shown, the present invention controls the swing angle of the wave-facing panel to change within the normal operation angle of the device or the maximum operation angle of the device by calculating the angle between the wave energy device and the wave direction. Among them, Hmax is the height at which the wave height reaches the working limit of the device, ω is the angle between the wave energy device and the wave direction, and for the safety of the device platform, ω is generally taken as ≤30°; ω1 is the normal operation angle of the device, ω2 is the maximum operation angle of the device; θ is the swing angle of the wave-facing panel.

[0058] In an embodiment of the present invention, if the current working condition is an extreme sea condition, the semi-submersible platform seat is controlled to dive until the water surface is above the dolphin-type wave-absorbing buoy. Specifically, in extreme sea conditions, when the device is not stable enough, the platform seat is adjusted by controlling the cabin to dive until the water surface is above the wave-absorbing buoy, so as to adjust the center of gravity of the device and improve the stability of the device platform.

[0059] The steady-state problem of the device provided in the embodiment of the present invention during the operation and switching process can be determined based on the center of gravity offset of the device. Under extreme working conditions, the center of gravity of the wind-wave energy combined power generation device can be adjusted by adjusting the position of the wave energy absorbing float, thereby improving the stability of the device.

[0060] It can be seen from the above description that the embodiment of the present invention provides a track sliding type wind energy and wave energy combined power generation device and control method, which has the following advantages compared with the prior art:

[0061] (1) Rationally combine wind turbines with wave energy devices, and use a unidirectional energy capture device to fully utilize the device platform and reduce construction costs;

[0062] (2) The energy capture direction of the energy capture device is designed to be variable, and the energy capture direction is adjusted according to the direction of the energy based on the sensor and controller, thereby improving the stress conditions of the wind turbine and the wave energy device, enabling the device to capture wind energy and wave energy to the maximum extent, thereby improving the energy capture efficiency to a certain extent.

[0063] 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.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A track sliding wind and wave energy combined power generation device, characterized in that: include: Wave energy power generation device, semi-submersible platform seat, wind turbine and track positioning keyway; among them, The semi-submersible platform seat is a triangular structure, the wave energy device control cabins are arranged at two vertices of the triangular structure, the wind turbine bottom column working cabin is arranged at the third vertex of the triangular structure; the wind turbine is mounted at a position above the wind turbine bottom column working cabin; The two frame sides of the triangular frame adjacent to the working cabin of the bottom column of the wind turbine unit are provided with the track positioning key grooves in a V-shaped structure; The wave energy power generation device comprises a wave-facing panel and a dolphin-type wave-absorbing floating body; the wave-facing panel comprises a fixed plate, a sensor arranged on the front of the fixed plate, a controller cabin arranged at both ends of the fixed plate, and an adjustable pre-tightening key arranged on the top of the controller cabin; the controller cabin is arranged in the track positioning key slot; the dolphin-type wave-absorbing floating body is arranged on the front of the fixed plate; The sensor is used to obtain the wave parameters passing through the fixed plate; The controller cabin is used to control the movement of the wave-facing panel on the track positioning key slot based on the wave parameters, so as to control the wave-facing angle of the wave energy power generation device to be within a preset range; The adjustable pre-tightening key is used to fix the positioning of the wave-facing panel relative to the track positioning keyway; The dolphin-type wave-absorbing floating body is used to convert wave energy into hydraulic energy and mechanical energy.

2. The track sliding wind and wave energy combined power generation device according to claim 1 is characterized in that: The wind turbine generator set comprises: a tower, a hub, a nacelle and blades; wherein, The blades and the hub are fastened and connected by bolts to form a wind wheel, and the wind wheel is connected to the nacelle through a main shaft; the nacelle is fixed to the top position of the tower, and the tower is mounted on the semi-submersible platform seat; a yaw system is arranged in the nacelle; The wind wheel is used to capture wind energy; The yaw system is used to monitor the incoming wind direction and control the rotation of the nacelle based on the incoming wind direction so that the wind wheel is perpendicular to the incoming wind direction.

3. The track sliding wind and wave energy combined power generation device according to claim 1 is characterized in that: The wave energy device control cabin includes a wave energy device control room, a battery compartment, a hydraulic generator room, a ballast tank and an anchor chain compartment; the wind turbine bottom column working cabin includes a wind turbine control room, a battery compartment, a ballast tank and an anchor chain compartment; the ballast tank is used to adjust the balance and stability of the semi-submersible platform seat.

4. The track sliding wind and wave energy combined power generation device according to claim 1 is characterized in that: The dolphin-type wave-absorbing float comprises: an articulated plate, a hydraulic cylinder, a piston rod, a connecting rod, a dolphin-type float and a spring; wherein the dolphin-type float is fixed to the fixed plate in an articulated manner through the articulated plate; the middle part of the dolphin-type float is movably connected to the articulated plate through the connecting rod; the bottom of the dolphin-type float is connected to the connecting rod through the piston rod, the spring and the hydraulic cylinder; the connecting rod is also connected to the articulated plate through the piston rod and the hydraulic cylinder.

5. The track sliding wind and wave energy combined power generation device according to claim 1 is characterized in that: The track positioning key slot is a double track setting, and a displacement sensor is installed on the track positioning key slot at a preset distance; the displacement sensor is used to track the position of the wave energy power generation device.

6. A control method for a track sliding wind and wave energy combined power generation device, characterized in that: The track sliding type wind energy and wave energy combined power generation device applied to any one of claims 1 to 5; comprising: Acquire the current working condition of the track sliding type wind energy and wave energy combined power generation device; the current working condition includes the current wind speed and the current wave height; Determining whether the current working condition is within a preset working range; If yes, the wind turbine is controlled to face the wind direction, and the wave energy generating device is controlled to slide in the track positioning key slot so that the wave-facing panel faces the incoming wave direction; If not, the wind turbine rotor is controlled to stop rotating, the front of the wind turbine is locked to face the wind direction, the dolphin-type wave-absorbing float is controlled to fold and shrink close to the wave-facing panel, and the wave-facing panel is controlled to be parallel to the incoming wave direction.

7. The control method according to claim 6, characterized in that: Also includes: If the current working condition is an extreme sea condition, the semi-submersible platform seat is controlled to dive until the water surface submerges the dolphin-type wave-absorbing buoy.

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