Offshore wind and tidal current combined complementary power generation device

Abstract

The application discloses a kind of offshore wind power tidal current energy combined complementary power generation device, including multiple pedestals and motor group fixedly connected to the upper side of pedestal, multiple pedestals extend connecting rod, so that multiple pedestals are fixedly connected by connecting rod each other, and floating platform is formed in multiple pedestals middle part, and wind driven generator is fixedly connected with floating platform;Motor group is penetrated from the inside of pedestal and extends downward, and extending fixedly connected with rotary bearing, rotary bearing is fixedly connected with deflection support, deflection support is fixedly connected with tidal current generator, so that tidal current generator can rotate with deflection support under the driving of motor group, to match the direction of tidal current, to ensure that power generation is increased;Deflection support lower side is fixedly connected with multiple anchor cables, for fixing pedestal and deflection support.

Description

Technical Field

[0001] The present invention relates to the field of power generation, and in particular to an offshore wind power and tidal current energy combined complementary power generation device. Background Art

[0002] The development of offshore clean energy is a major national development strategic requirement and the main direction for future clean energy development. As onshore clean energy (wind power and photovoltaic power) becomes increasingly saturated, the vast ocean area has sufficient wind energy and tidal energy that is yet to be developed. Existing single-type wind power platforms cannot develop and utilize tidal energy under multiple platforms, resulting in low resource utilization. When a strong sea breeze blows towards the wind power platform, the blades are prone to excessive rotation speed. The system that controls the blade speed of the wind power platform itself is prone to damage to components under long-term sea breeze, resulting in a reduced service life. In addition, since the wind power platform is far away from the mainland, it is difficult to effectively implement protective measures on the wind power platform, which will also increase the cost of daily maintenance. For this reason, the present invention provides an offshore wind and tidal energy combined complementary power generation device. Summary of the Invention

[0003] The object of the present invention is to provide an offshore wind and tidal energy combined complementary power generation device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A combined complementary power generation device for offshore wind and tidal energy comprises a plurality of bases and a motor group fixedly connected to the upper side of the bases, the plurality of bases are extended with connecting rods, so that the plurality of bases are fixedly connected to each other through the connecting rods, and a floating platform is formed in the middle of the plurality of bases, and the floating platform is fixedly connected to the wind turbine; the motor group passes through the interior of the base and extends downward, and is extended and fixedly connected to a slewing bearing, the slewing bearing is fixedly connected to a deflection bracket, and the deflection bracket is fixedly connected to a tidal generator, so that under the drive of the motor group, the tidal generator can rotate following the deflection bracket to match the direction of the tide to ensure increased power generation; a plurality of anchor cables are fixedly connected to the lower side of the deflection bracket for fixing the base and the deflection bracket.

[0006] Preferably, a closed ring is fixedly connected along the outer periphery of multiple bases, and multiple floating seats are fixedly connected along the outer side of the closed ring. A protective device is installed on the upper side of the floating seat, and the protective device includes a downwind structure, a weak wind structure and a support structure; the downwind structure is fixedly installed at the end of the floating seat away from the closed ring to guide the sea breeze to blow toward the weak wind structure, the weak wind structure is installed in the middle of the floating seat, and the support structure is fixedly installed at the end of the floating seat close to the closed ring, and is fixedly connected to the side of the weak wind structure close to the closed ring.

[0007] Preferably, the weak wind structure includes a plurality of slidingly connected windshield components, which are inserted into the floating seat. The first windshield component is provided close to the closed loop, the third windshield component is provided close to the downwind structure, and at least one second windshield component is located in the middle of the first windshield component and the second windshield component. The first windshield component is fixedly connected to the floating seat.

[0008] Preferably, a hollow sliding barrel is fixedly connected to the side of the third windshield component away from the downwind structure, and a pair of limiting plates 1 symmetrically distributed along the sliding barrel extend from the bottom toward the closed loop, and the middle of the limiting plate 1 is hollow.

[0009] Preferably, a limiting plate 2 is extended from the top of the first wind shield component toward the downwind structure, and an insertion plate is extended downward from the second end of the limiting plate for inserting into a hollow portion of the limiting plate. A sliding rod is fixedly connected to the middle of the first wind shield component on the side facing the downwind structure for inserting into a sliding barrel for sliding up and down.

[0010] Preferably, the second windshield component is fixedly connected to the sliding rod and the limiting plate 2 on the side close to the downwind structure, and is fixedly connected to the sliding barrel and the limiting plate 1 on the side close to the closed loop, so that the adjacent windshield components slide through the cooperation of the sliding rod and the sliding barrel, and the sliding distance is limited by the cooperation of the limiting plate 1 and the limiting plate 2.

[0011] Preferably, an S-shaped upwind portion is fixedly connected to the top of the third windshield assembly, and the upwind portion is concave upward near the downwind structure to counteract the sea breeze blowing toward the closed loop. The third windshield assembly is moved upward by means of wind force, thereby driving the second windshield assembly and the first windshield assembly to move upward, forming a wind-blocking barrier to reduce the wind force.

[0012] Preferably, the windshield assembly includes a plurality of vertically arranged U-shaped windshield frames with openings facing downward, a pair of support rods and windshield cloths corresponding to the windshield frames, the pair of support rods passing through and fixedly connecting the two sides of the plurality of windshield frames; a plurality of shaping rods extend downward from the U-shaped middle part of the windshield frame, the windshield cloths are tautly fixedly connected to the two sides of the U-shaped middle part of the windshield frame, and are fixedly connected to the shaping rods, so that a cavity is formed in the middle part of the windshield frame; a shaping strip is fixedly connected to the bottom of the windshield frame, and the shaping strip is inclined toward the closed loop; the windshield cloth on the side away from the closed loop is provided with a plurality of air holes.

[0013] Preferably, the downwind structure includes a support plate and an inclined guide plate, the bottom end of the support plate is fixedly connected to the floating seat, the top end is fixedly connected to the guide plate, and the end of the guide plate away from the closed loop is fixedly connected to the floating seat; the sea breeze blows toward the lower side of the upwind part through the guide plate to form an upward thrust on the upwind part.

[0014] Preferably, the supporting structure includes at least one telescopic rod and a corresponding pushing cylinder; one end of the telescopic rod is rotatably connected to the bottom of the floating seat, and the other end is fixedly connected to the side of the upwind part close to the closed ring, the pushing cylinder is fixedly connected to the floating seat, and is located on the lower side of the telescopic rod, and the driving end of the pushing cylinder is used to abut the rotating part of the telescopic rod and the floating seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention improves the utilization of marine resources by installing a wind turbine on the base and a tidal generator under the base. At the same time, in order to adapt to different tidal directions, the motor group drives the deflection bracket to rotate, and the direction of the tidal generator can be adjusted to ensure the maximum increase in power generation. The base is fixed by an anchor cable to form a power generation platform based on the base, realizing the efficient conversion and utilization of wind energy and tidal energy, and opening up a new method for the comprehensive utilization of clean marine energy.

[0017] Through the coordination of the downwind structure, support structure and wind-weakening structure, a wind-reducing barrier is formed, thereby reducing the wind speed of the sea breeze blowing towards the wind turbine, protecting the wind turbine, reducing the damage caused by the sea breeze to the wind turbine, and reducing maintenance costs;

[0018] The windshield components are connected by sliding, and the height of the barrier formed by the upward movement of the windshield components can be freely adjusted according to the number of windshield components to adapt to wind turbines of different heights. The support rods and sliding barrels fix the windshield components to prevent them from being deformed by the sea breeze. At the same time, the sliding barrels are also the sliding channels between the windshield components to ensure that adjacent windshields do not separate.

[0019] The combination of the windshield frame, shaping rod, windshield cloth and shaping strip can greatly reduce the weight of the windshield assembly, which is conducive to the upward sliding of the windshield assembly. The air holes opened in the windshield cloth are also used to allow part of the sea breeze to flow out through the bottom of the windshield frame, thereby reducing the wind pressure felt by the entire windshield assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a structural diagram of the connection between the protective device and the floating seat;

[0022] Figure 3 This is a structural diagram of the third wind shielding component in the wind weakening structure of the present invention when it slides upward;

[0023] Figure 4 This is a cross-sectional view of the insertion plate of the second limiting plate of the present invention inserted into the hollow portion of the first limiting plate;

[0024] Figure 5This is a schematic diagram of the back side of the disassembled structure of multiple windshield components of the present invention;

[0025] Figure 6 This is a front view schematic diagram of the disassembled structure of multiple windshield components of the present invention;

[0026] Figure 7 This is a cross-sectional view of the structure of the connection between the windshield frame and the windshield cloth of the present invention;

[0027] Figure 8 Schematic diagram of the bottom structure of the windshield frame;

[0028] Figure 9 It is a structural diagram of the connection between the windshield frame and the windshield cloth.

[0029] In the figure: 1 base, 2 motor group, 3 wind turbine, 4 deflection bracket, 5 tidal generator, 6 anchor cable, 7 closed ring, 71 floating seat, 8 protective device, 81 downwind structure, 811 support plate, 812 guide plate, 82 weak wind structure, 821 windshield assembly, 83 support structure, 831 telescopic rod, 832 pushing cylinder, 841 first windshield assembly, 842 second windshield assembly, 843 third windshield assembly, 85 sliding barrel, 851 windshield frame, 8511 shaping rod, 852 support rod, 853 windshield cloth, 854 shaping strip, 86 limit plate one, 87 limit plate two, 88 sliding rod, 89 upwind part. DETAILED DESCRIPTION

[0030] Example 1:

[0031] See also Figure 1 The present invention provides a technical solution: an offshore wind and tidal energy combined complementary power generation device, comprising multiple bases 1 and a motor group 2 fixedly connected to the upper side of the base 1, the motor group 2 including a motor and a reduction gearbox; the base 1 is preferably 3, and the multiple bases 1 are extended with connecting rods, and the multiple bases 1 are fixedly connected to each other by the connecting rods, so that a floating platform is formed in the middle of the multiple bases 1, and the floating platform is fixedly connected to a wind turbine 3, and the wind turbine 3 includes a complete variable pitch yaw system and a wind power generation system; the motor group 2 extends through the base 1 and extends downward, and is fixedly connected to a slewing bearing, the slewing bearing is fixedly connected to a deflection bracket 4, and the deflection bracket 4 is fixedly connected to a tidal generator 5, so that under the drive of the motor group 2, the tidal generator 5 can rotate with the deflection bracket 4 to match the direction of the tide to ensure that the power generation is maximized; multiple anchor cables 6, preferably 3, are fixedly connected to the lower side of the deflection bracket 4 for fixing and positioning the base 1 and the deflection bracket 4.

[0032] See also Figure 2A closed ring 7 is fixedly connected along the outer periphery of multiple bases 1. The closed ring 7 can be rectangular, circular or other shapes. In this embodiment, a rectangle is taken as an example. Multiple floating seats 71 are fixedly connected along the outer side of the closed ring 7. A protective device 8 is installed on the upper side of the floating seat 71. The protective device 8 includes a downwind structure 81, a weak wind structure 82 and a support structure 83; the downwind structure 81 is fixedly installed at one end of the floating seat 71 away from the closed ring 7, the weak wind structure 82 is installed in the middle of the floating seat 71, and the support structure 83 is fixedly installed on the floating seat 71 near the closed ring 7, and is fixedly connected to one end of the weak wind structure 82 close to the closed loop 7; when the sea breeze blows toward the closed loop 7, it is guided by the downwind structure 81 and blows toward the lower side of the top of the weak wind structure 82. Under the cooperation of the weak wind structure 82 and the supporting structure 83, the weak wind structure 82 moves upward to partially block the sea breeze, thereby weakening the wind speed of the sea breeze blowing toward the wind turbine 3, so as to extend the service life of the wind turbine 3 and reduce the loss of components; preferably, there are two protective devices 8, which are located on both sides of the radial direction of the wind turbine 3.

[0033] like Figure 2-6 As shown, the weak wind structure 82 includes a plurality of slidingly connected windshield components 821, which are inserted into the floating seat 71. The windshield component 821 is provided close to the closed ring 7 as a first windshield component 841, the windshield component 843 is provided close to the downwind structure 81, and at least one second windshield component 842 is located between the first windshield component 841 and the second windshield component 843. The first windshield component 841 is fixedly connected to the floating seat 71.

[0034] The third windshield component 843 is fixedly connected to a hollow sliding barrel 85 on the side away from the downwind structure 81, and at the same time, a pair of limit plates 86 symmetrically distributed along the sliding barrel 85 are extended from the bottom of the third windshield component 843 toward the closed ring 7, and the middle part of the limit plate 86 is hollowed out; the top of the first windshield component 841 is extended toward the downwind structure 81 with a limit plate 2 87, and the end of the limit plate 2 87 is extended downward with an insertion plate for inserting into the hollow part of the limit plate 1 86, and the middle part of the first windshield component 841 facing the downwind structure 81 is fixedly connected to a sliding rod 88 for inserting into the sliding barrel 85 for sliding up and down; the second windshield component 842 is fixedly connected to the sliding rod 88 and the limit plate 2 87 on the side close to the closed ring 7. One side of the ring 7 is fixedly connected to the sliding barrel 85 and the limit plate 1 86, so that the adjacent windshield components 821 can slide up and down through the cooperation of the sliding rod 88 and the sliding barrel 85, and the sliding distance is limited by the cooperation of the limit plate 1 86 and the limit plate 2 87; the top of the third windshield component 843 is fixedly connected to an S-shaped upwind portion 89, and the upwind portion 89 is concave upward on the side close to the downwind structure 81 and concave downward on the side close to the closed ring 7, thereby forming an opposition to the sea breeze blowing toward the closed ring 7, and the third windshield component 843 is moved upward by means of wind force, thereby driving the second windshield component 842 and the first windshield component 841 to move upward, forming a wind-blocking barrier to weaken the wind force and reduce the damage to the wind turbine 3 caused by the wind force.

[0035] like Figure 6-9 As shown, the windshield assembly 821 includes a plurality of vertically arranged windshield frames 851, a pair of support rods 852 and windshield cloths 853 corresponding to the windshield frames 851, the pair of support rods 852 pass through both sides of the plurality of windshield frames 851 and are fixedly connected; the windshield frame 851 is in a U-shape with the opening facing downward, and a plurality of shaping rods 8511 extend downward from the middle of the U-shape, the windshield cloth 853 is tightened and fixedly connected to both sides of the middle of the U-shape of the windshield frame 852, and is fixedly connected to the shaping rods 8511, so that a cavity is formed in the middle of the windshield frame 851 to ensure that the shape of the windshield assembly 821 remains unchanged, and a shaping strip 854 is fixedly connected to the bottom of the windshield frame 851, and the shaping strip 854 is inclined toward the direction of the closed loop 7, that is, it can ensure that the windshield cloth 8 The shape of 53 remains unchanged, and it can also prevent the sea breeze from blowing into the cavity from the bottom of the windshield cloth 853; the windshield cloth 853 on the side away from the closed ring 7 is provided with a plurality of air holes, so that part of the sea breeze enters the cavity from the air holes and escapes from the bottom of the windshield frame 851, so as to reduce the pressure of the sea breeze on the windshield component 821; the windshield frame 851 and the support rod 852 are preferably made of alloy material to improve the strength and toughness of the material and avoid deformation during the wind-blocking process. The windshield cloth 853 is preferably made of polyester fiber, coated cloth and other materials with high strength and toughness as well as wear resistance and weather resistance to withstand greater wind force. The use of the windshield cloth 853 can also reduce the overall weight of the windshield component 821 and reduce the pressure on the supporting structure 83.

[0036] like Figure 2-3 As shown, the downwind structure 81 includes a support plate 811 and an inclined guide plate 812. The bottom end of the support plate 811 is fixedly connected to the floating seat 71, and the top end is fixedly connected to the guide plate 812. The end of the guide plate 812 away from the closed loop 7 is fixedly connected to the floating seat 71; so that the sea breeze blows toward the lower side of the upwind part 89 through the guide plate 812, and a pair of upwind parts 89 form an upward thrust, while also preventing the sea breeze from blowing directly to the bottom of the windshield component 821, affecting stability.

[0037] The supporting structure 83 includes at least one telescopic rod 831 and a corresponding pushing cylinder 832; one end of the telescopic rod 831 is rotatably connected to the bottom of the floating seat 71 as a rotating end, and the other end is fixedly connected to the side of the upwind part 89 close to the closed ring 7 as a fixed end. The pushing cylinder 832 is fixedly connected to the floating seat 71 and is located on the lower side of the telescopic rod 831. The driving end of the pushing cylinder 832 is used to abut the rotating part of the telescopic rod 831 and the floating seat 71. The pushing cylinder 832 pushes the telescopic rod 831 to rotate toward the closed ring 7, assisting the windshield component 821 to move upward, otherwise the windshield component 821 moves downward. At the same time, the pushing rod 831 is used to limit the position of the windshield component 821 to prevent the windshield component 821 from sliding left and right, resulting in failure to fall onto the floating seat 71.

[0038] Working principle: Within the wind force range that the wind turbine 3 can withstand, the wind turbine 3 generates electricity by rotating. At the same time, the tidal generator 5 located under the sea surface rotates and generates electricity under the impact of the tide. When the tide changes direction, the motor group 2 drives the deflection bracket 4 and the tidal generator 5 to rotate in the direction of the tide to maximize the use of the tide for power generation.

[0039] When the sea breeze increases to a level that exceeds the tolerable range of the wind turbine 3, the guide plate 812 of the downwind structure 81 that is first hit by the sea breeze guides the sea breeze to blow toward the lower side of the upwind portion 89, thereby forming an upward driving force on the upwind portion 89. When the wind force reaches a certain level, the third windshield component 843 moves axially upward along the sliding rod 88. When the insert plate extending from the limiting plate 2 87 at the top of the adjacent second windshield component 842 is inserted into the hollow part of the limiting plate 1 86 at the bottom of the third windshield component 843, it begins to drive the adjacent second windshield component 842 to move upward, and so on. When there are multiple second windshield components 842, the adjacent second windshield components 842 move upward in this way until the limiting plate 1 86 of the second windshield component 842 is plugged into the insert plate at the top of the adjacent first windshield component 841, and the windshield component 821 no longer moves upward. The push cylinder 832 can also cooperate with the sea breeze to assist the windshield assembly 821 in rising, and the push cylinder 832 can appropriately increase the abutting force on the rotating end of the telescopic rod 831, making it easier for the windshield assembly 821 to rise. At the same time, the guide plate 812 also protects the first windshield assembly 841, preventing the sea breeze from directly blowing the first windshield assembly 841.

[0040] When the sea breeze blows down the windshield 853 , part of the wind is blocked by the windshield 853 , and the other part enters the cavity through the air holes and flows out from the bottom of the windshield frame 851 to share the pressure brought by the wind on the windshield 853 .

[0041] When the sea breeze weakens to a range that the wind turbine 3 can withstand, the windshield component 821 begins to descend, while driving the telescopic rod 831 to contract, and the driving end of the push cylinder 832 also begins to contract. During the descent of the windshield component 821, the support of the telescopic rod 831 on the third windshield component 843 also helps the windshield component 821 fall to the position before it rose.

[0042] The number of second windshield components 842 can be adjusted according to the wind force range that the wind turbine 3 can withstand. The more second windshield components 842 there are, the lighter the weight is, and the easier it is to be blown by the sea breeze. Conversely, the fewer the number, the heavier the weight is, and a higher wind speed sea breeze is required to blow it.

Claims

1. An offshore wind and tidal energy combined complementary power generation device, characterized by: The invention comprises a plurality of bases (1) and a motor group (2) fixedly connected to the upper side of the base (1), wherein the plurality of bases (1) are extended with connecting rods so that the plurality of bases (1) are fixedly connected to each other through the connecting rods, and a floating platform is formed in the middle of the plurality of bases (1), and the floating platform is fixedly connected to a wind turbine (3); the motor group (2) passes through the interior of the base (1) and extends downward, and is fixedly connected to a slewing bearing, the slewing bearing is fixedly connected to a deflection bracket (4), and the deflection bracket (4) is fixedly connected to a tidal generator (5), so that under the drive of the motor group (2), the tidal generator (5) can rotate along with the deflection bracket (4) to match the direction of the tidal current, thereby ensuring an increase in power generation; a plurality of anchor cables (6) are fixedly connected to the lower side of the deflection bracket (4) for fixing the base (1) and the deflection bracket (4); A closed ring (7) is fixedly connected along the outer periphery of the plurality of bases (1), and a plurality of floating seats (71) are fixedly connected along the outer side of the closed ring (7). A protective device (8) is installed on the upper side of the floating seat (71), and the protective device (8) includes a downwind structure (81), a weak wind structure (82) and a support structure (83); the downwind structure (81) is fixedly installed on one end of the floating seat (71) away from the closed ring (7) to guide the sea breeze to blow toward the weak wind structure (82), the weak wind structure (82) is installed in the middle of the floating seat (71), and the support structure (83) is fixedly installed on one end of the floating seat (71) close to the closed ring (7) and fixedly connected to one side of the weak wind structure (82) close to the closed ring (7); The weak wind structure (82) includes a plurality of slidingly connected windshield components (821), the windshield components (821) are inserted into the floating seat (71), the first windshield component (841) is provided near the closed ring (7), the third windshield component (843) is provided near the downwind structure (81), and at least one second windshield component (842) is located in the middle of the first windshield component (841) and the third windshield component (843), and the first windshield component (841) is fixedly connected to the floating seat (71).

2. The offshore wind and tidal energy combined complementary power generation device according to claim 1, characterized in that: A hollow sliding barrel (85) is fixedly connected to the side of the third windshield component (843) away from the downwind structure (81), and a pair of limiting plates (86) symmetrically distributed along the sliding barrel (85) are extended from the bottom toward the closed ring (7), and the middle of the limiting plates (86) are hollowed out.

3. The offshore wind and tidal energy combined complementary power generation device according to claim 2, characterized in that: The top of the first windshield assembly (841) is provided with a second limiting plate (87) extending in the direction of the downwind structure (81), and an insertion plate is extended downward from the end of the second limiting plate (87) for inserting into the hollow portion of the first limiting plate (86). The middle of the first windshield assembly (841) on the side facing the downwind structure (81) is fixedly connected with a sliding rod (88) for inserting into the sliding barrel (85) for sliding up and down.

4. The offshore wind and tidal energy combined complementary power generation device according to claim 3, characterized in that: The second windshield assembly (842) is fixedly connected to the sliding rod (88) and the second limiting plate (87) on the side close to the downwind structure (81), and is fixedly connected to the sliding barrel (85) and the first limiting plate (86) on the side close to the closed ring (7), so that the adjacent windshield assembly (821) slides through the cooperation of the sliding rod (88) and the sliding barrel (85), and the sliding distance is limited by the cooperation of the first limiting plate (86) and the second limiting plate (87).

5. The offshore wind and tidal energy combined complementary power generation device according to claim 4, characterized in that: The top of the third windshield assembly (843) is fixedly connected to an S-shaped upwind portion (89), and the upwind portion (89) is concave upward on the side close to the downwind structure (81) to form a countermeasure against the sea breeze blowing toward the closed loop (7). The third windshield assembly (843) is moved upward by the wind force, thereby driving the second windshield assembly (842) and the first windshield assembly (841) to move upward, forming a wind-blocking barrier to reduce the wind force.

6. The offshore wind and tidal energy combined complementary power generation device according to claim 1, characterized in that: The windshield assembly (821) comprises a plurality of vertically arranged U-shaped windshield frames (851) with downwardly facing openings, a pair of support rods (852) and windshield cloths (853) corresponding to the windshield frames (851), wherein the pair of support rods (852) penetrates and is fixedly connected to both sides of the plurality of windshield frames (851); a plurality of shaping rods (8511) extend downwardly from the U-shaped middle portion of the windshield frame (851); the windshield cloth (853) is tautly fixedly connected to both sides of the U-shaped middle portion of the windshield frame (851) and is fixedly connected to the shaping rods (8511), so that a cavity is formed in the middle portion of the windshield frame (851); a shaping strip (854) is fixedly connected to the bottom of the windshield frame (851), and the shaping strip (854) is inclined toward the closed ring (7); and a plurality of air holes are provided on the windshield cloth (853) on the side away from the closed ring (7).

7. The offshore wind and tidal energy combined complementary power generation device according to claim 5, characterized in that: The downwind structure (81) comprises a support plate (811) and an inclined guide plate (812); the bottom end of the support plate (811) is fixedly connected to the floating seat (71), and the top end is fixedly connected to the guide plate (812); the end of the guide plate (812) away from the closed loop (7) is fixedly connected to the floating seat (71); the sea breeze blows toward the lower side of the upwind portion (89) through the guide plate (812), thereby forming an upward thrust on the upwind portion (89).

8. The offshore wind and tidal energy combined complementary power generation device according to claim 5, characterized in that: The support structure (83) includes at least one telescopic rod (831) and a corresponding push cylinder (832); one end of the telescopic rod (831) is rotatably connected to the bottom of the floating seat (71), and the other end is fixedly connected to the side of the upwind portion (89) close to the closed ring (7); the push cylinder (832) is fixedly connected to the floating seat (71) and is located on the lower side of the telescopic rod (831); the driving end of the push cylinder (832) is used to abut the rotating part of the telescopic rod (831) and the floating seat (71).

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