Self-adaptive downstream power generation system

Abstract

A self-adaptive downstream power generation system relates to the technical field of hydroelectric power generation and comprises a base body and a pair of downstream assemblies pivoted with the base body, and the area of the downstream assemblies on the upper portion of a pivot center line is larger than the area of the downstream assemblies on the lower portion of the pivot center line from the projection area of the downstream assemblies on a vertical plane passing through the pivot center line. When the downstream assembly rotates around the center line of the pivot relative to the base body, the fixed inclination center of the downstream assembly is higher than the gravity center of the downstream assembly. The method has the advantages of being high in self-adaptive capacity and high in working reliability.

Description

[0001] The present invention claims the priority of the Chinese invention patent application with application number 202510071433.4, application date January 16, 2025, and invention name “Adaptive downstream power generation system”. Technical Field

[0002] The present invention relates to the technical field of power generation using energy generated by the flow of rivers and ocean water, and in particular to an adaptive downstream power generation system. Background Art

[0003] The patent document with publication number CN103334869A and titled Multifunctional Carrying Device for Tidal Generator and Method of Using the Same discloses an adaptive downstream power generation system, which is composed of a generator and a carrying device, wherein the carrying device includes a base and a carrying frame extending horizontally from the middle of the base to the left and right sides, a generator is fixed at the end of the carrying frame, and there is a fixed depth stabilization buoy extending upward from the base, and a sliding buoy sleeved on the fixed depth stabilization buoy. The sliding buoy, the turning-assisting rope and a pair of downstream turning-assisting arms cooperate to achieve downstream turning-assisting action. The power generation system has many advantages, but has the following disadvantages: first, after being used in water for a long time, especially in seawater, the surface of the fixed depth stabilization buoy and the surface of the turning-assisting rope will be contaminated with marine organisms, making the sliding buoy difficult to slide, and the rope is easy to get stuck when passing through the guide wheel or guide ring, thereby affecting the downstream turning of the generator and the correction when floating up; second, it is very difficult to disassemble and repair the generator on site.

[0004] Therefore, it is necessary to provide an adaptive downstream power generation system that can effectively solve these two problems based on the above-mentioned prior art. Summary of the invention

[0005] The main purpose of the present invention is to provide an adaptive downstream power generation system with an improved flip structure.

[0006] Another object of the present invention is to provide an adaptive downstream power generation system that is easy to disassemble and assemble the generator.

[0007] To achieve the above-mentioned main purpose, the adaptive downstream power generation system provided by the present invention includes a base and a pair of mounting frames located on both sides of the base, the mounting frames are pivotally connected to the base, the pivot center line is perpendicular to the midline space of the base in the length direction, a generator is fixed to the end of the mounting frame away from the base; a long sub-body is fixed to the end of the mounting frame close to the base; a downstream component includes the generator, the mounting frame and the long sub-body, and from the projected area of ​​the downstream component on the vertical plane passing through the pivot center line, the area located above the pivot center line is larger than the area located below the pivot center line, and during the rotation of the downstream component around the pivot center line relative to the base, the fixed inclination center of the downstream component is higher than the center of gravity of the downstream component.

[0008] As can be seen from the above scheme, the long sub-body is set in the downstream component adopted by the present invention, and most of the area of ​​the downstream component on the projection surface passing through the center line of the pivot is located above the center line of the pivot. When the adaptive downstream power generation system sinks to the working depth in the water and there is an incoming flow, the force of the downstream component is at the upper part of the center line of the pivot, and the resultant force of the downstream component is greater than the resultant force at the lower part of the center line of the pivot. The resulting overturning moment will overcome the restoring moment and cause the downstream component to rotate around the pivot until it is in a dynamic equilibrium state between the overturning moment and the restoring moment, that is, the power generation working state of the generator; when the incoming flow gradually disappears, for example, in the process of the adaptive downstream power generation system floating to the surface of the water, since the fixed tilt center of the downstream component is higher than the center of gravity of the downstream component, that is, the restoring moment is in the process of being greater than the overturning moment, it will rotate around the pivot in the opposite direction to the positive floating position. Similarly, in the case of adaptive downstream power generation, the present invention omits the sliding float and the turning-assisting rope that cannot work normally when there is attached marine organisms, and adds the long sub-body to flip and restore, so it will not be disturbed by the attached marine organisms.

[0009] A further solution is that the buoyancy control assembly includes the base and / or the long sub-body, and the base and / or the long sub-body have a buoyancy control cabin, and the sinking or floating of the adaptive downstream power generation system is controlled by injecting water into the buoyancy control cabin to exhaust air or injecting air to drain water. The advantage of this solution is that the location of the buoyancy control cabin can be reasonably selected by comprehensively considering many factors such as the use environment, convenient operation, and manufacturing cost.

[0010] A further solution is that the long sub-body includes a first long sub-body and a second long sub-body, the center line of the first long sub-body intersects the center line of the pivot perpendicularly, and the second long sub-body is fixed on the top of the first long sub-body. The advantage of this solution is that the area center of the downstream component located above the center line of the pivot is relatively far away from the center line of the pivot, which increases the downstream turning moment value and improves the buoyancy utilization rate of the base when the adaptive downstream power generation system is located on the water surface.

[0011] A further solution is that the buoyancy control cabin is arranged in the second longest sub-body. The advantage of this solution is that it can provide a larger adjustment range of the overturning moment and the restoring moment.

[0012] A further solution is that the second longest sub-body is composed of two sections in the length direction and is located at both ends of the first longest sub-body in the length direction. The advantage of this solution is that the second longest sub-body is optimized to increase the lever arm and reduce the buoyancy, and the structure is simplified when the second longest sub-body provides the same torque.

[0013] A further solution is that the buoyancy control assembly further includes a depth-fixing and stabilizing floating tube, and the lower end of the depth-fixing and stabilizing floating tube is fixed on the base.

[0014] Another further solution is that the downstream component also includes a downstream turning-assisting arm, and the lower end of the downstream turning-assisting arm is fixed on the carrying frame.

[0015] To achieve another purpose of the present invention, the adaptive downstream power generation system is also provided with a mounting seat, which has an inner cavity and an opening that accommodate most of the outer shell of the generator; the mounting seat is fixed to the end of the mounting frame away from the base with the opening facing upward, and the generator is placed in the inner cavity with the rotating shaft facing upward and then fixed to the mounting seat.

[0016] It can be seen from the above scheme that the generator can be hoisted into and out of the inner cavity from the upper opening of the mounting seat. Since the lower part of the generator in the upright floating state happens to have a streamlined lower end, there is a larger alignment tolerance when loading from the opening. For generators with larger deadweight at work sites with strong winds and waves, the convenience of disassembly and assembly of the generator is improved.

[0017] Another further solution is that the open end of the mounting seat is provided with an axial groove, the grooves are evenly distributed in the circumferential direction, and the bottom of the mounting seat is also provided with an ear seat; the shell of the generator is provided with a convex block that matches the groove in the circumferential direction, and the bottom of the shell is provided with an ear plate that matches the ear seat. The advantage of this solution is that it is easy to position and relatively fix the generator during disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view of a first embodiment of the present invention;

[0019] Figure 2 yes Figure 1 Left view of;

[0020] Figure 3 This is a three-dimensional diagram of the first embodiment of the present invention floating on the water surface.

[0021] Figure 4 is a three-dimensional diagram of a second embodiment of the present invention floating on the water surface;

[0022] Figure 5 yes Figure 4 A three-dimensional structural diagram of the middle carrier;

[0023] Figure 6 yes Figure 4 The three-dimensional structure diagram of the generator;

[0024] Figure 7 It is a schematic diagram of the power generation working state of the second embodiment of the present invention.

[0025] Wherein: base 1; center line 11; mooring ear 12; anchor chain 13; downstream component 2; pivot center line 20; carrier frame 21; generator 22; protrusion 221; ear plate 222; long sub-body 23; first long sub-body 231; second long sub-body 232; downstream turning arm 24; carrier seat 25; groove 251; ear seat 252; reinforcing rod 26; buoyancy control component 3; fixed depth and stabilization floating tube 31; reinforcing member 32; adaptive downstream power generation system 100.

[0026] The following is a detailed description of the present invention in conjunction with various embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0027] The present invention is an improvement on the prior art CN103334869A. In the following embodiments, only the structures that are different from the prior art are emphasized, and matters that require special attention during implementation are also explained. The electrical circuits, water and gas pipelines, etc. that are necessary for controlling the sinking and floating of the adaptive downstream power generation system 100 and generating electricity are omitted in the figures. Those skilled in the art can implement them according to the common sense they should know.

[0028] First embodiment

[0029] See also Figure 1 , Figure 1 It is the main view of the first embodiment, that is, the view when the length direction of the base 1 of the adaptive downstream power generation system 100 is consistent with the direction of the water flow when it is in the upright floating state. A pair of mounting frames 21 are located on the left and right sides of the base 1. The mounting frames 21 are connected to the base 1 by a pivot and can rotate relative to the base 1 around the pivot center line 20. The pivot center line 20 and the midline of the base 1 in the length direction are perpendicular to each other in space. In this example, the two are perpendicular and intersecting. In other embodiments, the two may not intersect at all. A better technical effect will be achieved if the pivot center line 20 is appropriately higher than the midline of the base 1. A generator 22 is fixed to the end of the mounting frame 21 away from the base 1, while a long sub-body 23 and a downstream turning arm 24 are fixed to the end close to the base 1. The lower end of the downstream turning arm 24 is fixed to the mounting frame 21. In addition, Figure 3As can be seen, two reinforcing rods 26 are arranged between the first long sub-body 231 and the carrier 21 to improve the overall structural strength of the downstream assembly. In this example, the carrier 21, the generator 22, the long sub-body 23, the downstream turning arm 24 and the reinforcing rods 26 constitute the downstream assembly 2. Therefore, the downstream assembly 2 can rotate relative to the base 1 around the pivot centerline 20 as a whole. The lower end of the fixed depth and stabilization floating pipe 31 is fixed on the base 1. Figure 1 It can be seen that the entire downstream component 2 can be divided into two parts, the upper and lower parts of the pivot center line 20, on the projection plane of the main view, and the projection area of ​​the downstream component 2 located on the upper part of the pivot center line 20 is larger than the projection area of ​​the downstream component 2 located on the lower part of the pivot center line 20. When the adaptive downstream power generation system 100 is sunk in the water at a certain depth, as long as there is water flowing, the force received by the downstream component 2 on the upper part of the pivot center line 20 will be greater than the force received by the lower part of the pivot center line 20. When the overturning moment generated by it is greater than the restoring moment, it will drive the downstream component 2 to rotate around the pivot center line 20. , so that the generator 22 overturns downstream and drives the impeller to rotate under the action of the water flow to generate electricity. Obviously, the overturning angle is large when the water flow is turbulent, and the overturning angle is small when the water flow is slow. Usually or theoretically, the limit angle of overturning is 90 degrees. Since the center of inclination of the downstream component 2 is always kept higher than the center of gravity of the downstream component during the rotation of the downstream component 2 relative to the base 1 around the pivot centerline 20, once the flow of the water disappears, that is, the overturning moment disappears, for example, the adaptive downstream power generation system 100 is located in still water or floats to the surface of the water, the restoring torque will drive the downstream component 2 back to Figure 1 Indicates the positive floating state.

[0030] See also Figure 2 Combined with Figure 3 , Figure 2 yes Figure 1 The left view of Figure 3It is a stereoscopic diagram of the adaptive downstream power generation system 100 floating on the water surface. One end of the reinforcement 32 is fixed to the end of the base 1, and the other end is fixed to the top of the fixed depth stabilization buoyant tube 31. The base 1 adopts a shell structure, and the interior is divided into four sealed cabins along the longitudinal direction, of which the two in the middle are floating control cabins, and the two at both ends are fixed floating cabins. The fixed floating cabin is a cabin that only provides fixed buoyancy, while the floating control cabin refers to a cabin that can adjust the buoyancy as needed. When water is injected into the cabin to exhaust gas, the buoyancy of the cabin is relatively reduced, and when air is injected into the cabin to drain water, the buoyancy of the cabin is relatively increased. The long sub-body 23 of this example is composed of a first long sub-body 231 and a second long sub-body 232. The center line of the first long sub-body 231 intersects the pivot center line 20 vertically, and the second long sub-body 232 is fixed to the top of the first long sub-body 231, wherein the middle part of the second long sub-body 232 is interrupted, so that two sections are formed in the length direction, and are located at both ends of the first long sub-body 231 in the length direction. The first long sub-body 231 is set as a fixed buoyancy cabin, and the second long sub-body 232 is set as a buoyancy control cabin. When the long sub-body 23 and the base 1 provide the maximum buoyancy, the adaptive downstream power generation system 100 is floating on the water surface, and when the minimum buoyancy is provided, the adaptive downstream power generation system 100 sinks underwater, and when there is a tide, the downstream component 2 will adapt to the speed of the incoming flow and overturn at a corresponding angle. In this example, the base 1, the long sub-body 23 and the fixed depth stabilization buoyant tube 31 together constitute the buoyancy control component 3, and with the cooperation of the fixed depth stabilization buoyant tube 31, it is in a fixed depth power generation or waiting power generation working state. In this state, the two anchors are anchored along the direction of tide, and the other end of the anchor chain 13 is fixed on the mooring ear 12.

[0031] The implementation of the present invention requires special attention to the following points:

[0032] First: the larger the area of ​​the downstream component 2 above the pivot centerline 20 is, the better the downstream flipping effect is. However, if it is too large, the difference between the restoring moment and the overturning moment of the downstream component 2 will be negative. Therefore, the design of the downstream component 2 must fully consider balancing this contradiction.

[0033] Second: The main design concept of the present invention is that when the adaptive downstream power generation system 100 is on the water surface, the downstream component 2 should have as large a positive buoyancy stability as possible, that is, Figure 1 , Figure 2In the state shown, the larger the restoring torque of the downstream component 2 rotating around the pivot centerline 20, the better. When sinking underwater, the restoring torque of the downstream component 2 rotating around the pivot centerline 20 is greater than zero, that is, the smaller the better under the premise that the fixed tilt center is higher than the center of gravity. In order to achieve the above design concept, the design of the downstream component 2 needs to consider the coordination of the center of gravity height and the center of buoyancy height. When the eldest sub-body 23 is provided with a floating control cabin, it has two outstanding advantages. First, when it is on the water surface and provides the maximum buoyancy, the downstream component 2 can be kept in a relatively stable state, that is, it is not easy to rotate around the pivot centerline 20 relative to the base 1, so as to maintain or disassemble the generator on the water; second, when it is underwater and provides the minimum buoyancy, the restoring torque of the downstream component 2 is minimized, which is conducive to the angle between the axial direction of the generator 22 and the incoming flow direction as small as possible, so as to obtain the best hydropower energy conversion efficiency. The height of the center of buoyancy and the center of gravity can be calculated in advance during the design, and the counterweight can be added at the appropriate position after construction to solve it. Obviously, the best method is to set the eldest sub-body 23 as a floating control cabin, and its buoyancy adjustment range is appropriate.

[0034] Third: This embodiment is used for a small power generation system. Under the premise that the base 1 is designed to have a sufficient buoyancy adjustment range, the eldest sub-body 23 can be further simplified by reducing the structural strength or performance of the eldest sub-body 23. The excessive volume of the second eldest sub-body 232 can be reduced and set as a fixed buoyancy chamber; or the second eldest sub-body 232 can be simply not provided, which can also meet actual needs.

[0035] Second embodiment

[0036] See also Figure 4 , Figure 4 2 is a three-dimensional diagram of the second embodiment of the present invention floating on the water surface. The following only describes the differences between this embodiment and the first embodiment. The long body 23 of this embodiment is also composed of the first long body 231 and the second long body 232, but the second long body 232 is a continuous long body structure, which is larger and longer than the second long body 232 in the first embodiment, and the first long body 231 is shorter and thinner than the first long body 231 in the first embodiment, so that the long body 23 has higher strength and better performance. In this embodiment, the long body 23 is a long body with the same length direction as the length direction of the base 1, and the advantage is that there is a flow direction on the water surface such as Figure 4 When the flow is in the direction indicated by the arrow, the base 1 will produce the following Figure 4Although the tilt shown in the figure is shown, the long sub-body 23 can keep the downstream assembly 2 in the upright position and is less affected by the tilt of the base 1, which is conducive to the maintenance and disassembly and assembly of the generator 22. In addition, a carrying seat 25 is fixed at one end of the carrying frame 21 away from the base 1, and the generator 22 is fixed in the carrying seat 25. The advantage of fixing the generator 22 by the carrying seat 25 is that it is easy to disassemble and assemble, especially more convenient to perform maintenance at a site far away from land. In addition, the reinforcing rod 26 in this embodiment has one end connected to the open end of the carrying seat 25 and the other end connected to the second long sub-body 232, so that the downstream assembly 2 will have a higher structural strength and can carry a larger generator 22.

[0037] It should be particularly pointed out that, in the first and present embodiments, each second longest sub-body 232 is preferably provided with two buoyancy control cabins symmetrically arranged at both ends in the length direction. Meanwhile, fixed buoyancy cabins may be symmetrically arranged in the second longest sub-body 232 along the length direction as required to relatively increase the buoyancy center height of the longest sub-body.

[0038] Second, in the present embodiment, the configuration of the eldest sub-body 23 as the first eldest sub-body 231 and the second eldest sub-body 232 is an optimized design, but it can be further optimized, that is, on the one hand, the second eldest sub-body 232 is configured to be dumbbell-shaped, and on the other hand, the first eldest sub-body 231 is configured to be V-shaped in the length direction, so that the eldest sub-body 23 has a higher cost performance.

[0039] Third, this embodiment is used as a small power generation system. Under the premise that the base 1 is designed to have a sufficient buoyancy adjustment range, the elongated body 23 can be further simplified by reducing the structural strength or performance of the elongated body 23. That is, the first elongated body 231 can be omitted, and the buoyancy control cabin can be omitted after reducing the volume of the second elongated body 232. This can also meet application requirements.

[0040] See also Figure 5 , Figure 5 2 is a three-dimensional structural diagram of the mounting seat 25. The mounting seat 25 is a roughly cage-shaped structure. The inner cavity of the cage can accommodate most of the outer shell of the generator 22. The upper end is open, and the guide end of the generator 22 can enter and exit from the opening. The shape and size of the inner cavity are basically consistent with the shape and size of the part of the outer shell of the generator 22 entering from the opening. The open end of the mounting seat 25 is provided with an axial groove 251. The three sections of the groove 251 are evenly distributed in the circumferential direction. The bottom of each section of the groove 251 is also provided with two fastening bolt holes. An ear seat 252 is provided at the bottom of the mounting seat 25, and the ear seat 252 is provided with a bolt hole that penetrates horizontally.

[0041] See also Figure 6 , Figure 6It is a three-dimensional diagram of the generator 22. Three protrusions 221 matching the grooves 251 are provided at the corresponding positions of the housing of the generator 22 and the opening of the mounting seat 25. Two fastening bolt holes are also provided on each protrusion 221. An ear plate 222 matching the ear seat 252 is provided at the bottom. Bolt holes are also provided on the ear plate 222. When the generator 22 is hoisted into the opening of the mounting seat 25, it is only necessary to control the relative rotation of the two until the protrusion 221 enters the corresponding groove 251 and the ear plate 222 is inserted into the ear seat 252. After installation, the generator 22 is fixed in the mounting seat 25 by six fastening bolts and one bolt. When removing the generator 25, the above steps can be reversed.

[0042] Third embodiment

[0043] The difference between this example and the second embodiment is that the base body 1 is a floating body with a specific gravity slightly smaller than that of water, and the eldest sub-body 23 is a floating control cabin.

[0044] The following combination Figure 7 The working principle of the present invention is described in detail. Figure 7 1 is a schematic diagram of the power generation working state of the second embodiment of the present invention. The adaptive downstream power generation system 100 at a fixed depth in the water will generate a force on the downstream component 2 as indicated by the arrow. Since the flow area above the pivot centerline 20 of the downstream component 2 in the positive floating state is larger than the flow area below the pivot centerline, under the action of the water flow force, on the one hand, the base 1 will tilt under the pulling force of the anchor chain 13 in the incoming flow direction, and on the other hand, the downstream component 2 will rotate clockwise around the pivot centerline 20 relative to the base 1, so that the blades of the generator 22 are reversed to the working state, that is, the downstream state. At the same time, the blades also rotate under the action of the incoming flow to drive the generator 22 to generate electricity, that is, Figure 7 When the incoming flow disappears, the downstream component 2 will adaptively return to the positive floating state because the restoring moment is greater than the overturning moment. Figure 7 In the opposite direction indicated by the arrow, such as low tide, the base 1 will tilt in the opposite direction, and the downstream component 2 will rotate counterclockwise around the pivot centerline 20 to the working state of the generator 22. Figure 7 What is shown is the most ideal working state of the downstream component 2. In reality, the rotation angle of the downstream component 2 usually changes continuously with the strength of the tidal current.

[0045] The following combination Figure 4 and Figure 7 The present invention focuses on the control method of the eldest son body 23 participating in the sinking and floating. When the eldest son floating body 23 is provided with a floating control cabin, an injection and exhaust port is provided at the upper part of the end facing the incoming flow direction, and an injection and drainage port is provided at the lower part of the end facing away from the incoming flow direction. Figure 4 In the indicated state, the injection and exhaust ports and the injection and drainage ports are opened to inject water and exhaust gas, and the eldest floating body 23 sinks. Floating operation: Figure 7In the state shown, open the injection and exhaust ports and the injection and drainage ports to inject and drain air, and the eldest sub-body 23 will float up. In addition, when the base 1, the eldest sub-body 23 and the fixed depth and stabilization floating pipe 31 are all equipped with a floating control cabin, the sinking operation: it is best to first inject water into the base 1 to exhaust air, then inject water into the eldest sub-body 23 to exhaust air, and finally inject water into the fixed depth and stabilization floating pipe 31 to exhaust air; floating operation: it is best to first inject air into the fixed depth and stabilization floating pipe 31 to drain air, then inject air into the eldest sub-body 23 to drain air, and finally inject air into the base 1 to drain air. Of course, it should be emphasized that no matter whether it is a sinking operation or a floating operation, it is best to control the two eldest sub-bodies 23 on both sides in parallel.

[0046] Other Implementations

[0047] In the above examples, the pivot centerline 20 intersects the centerline 11 of the base 1 at right angles, but this is not necessary. The pivot centerline 20 being higher than the centerline 11 will bring greater convenience to the assembly and disassembly of the generator 22 on site.

[0048] In addition, when the adaptive downstream power generation system 100 is used exclusively in rivers, since the flow direction is single and unchanged, setting the pivot at the back-stream end of the base 1 will save more manufacturing materials of the base 1 and reduce one anchor chain 13.

[0049] Finally, one of the base 1 and the eldest sub-body 23 must be a buoyancy control cabin, that is, it can control the overall sinking and floating of the adaptive downstream power generation system 100. The buoyancy design and buoyancy variation range of the eldest sub-body 23, the height relative to the pivot center line, etc., should be comprehensively considered based on the specific structure of the downstream component 2, so there will be a variety of implementation changes.

Claims

1. An adaptive downstream power generation system, comprising a base and a pair of mounting frames located on both sides of the base, wherein the mounting frames are pivotally connected to the base, the centerline of the pivot is perpendicular to the midline space of the base in the length direction, and a generator is fixed to one end of the mounting frame away from the base; Features: A long sub-body is fixed to one end of the carrying frame close to the base, and the length direction of the long sub-body is consistent with the length direction of the base; A downstream component includes the generator, the mounting frame and the elongated body. From the projected area of ​​the downstream component on the vertical plane passing through the pivot center line, the area located above the pivot center line is larger than the area located below the pivot center line. During the rotation of the downstream component around the pivot center line relative to the base, the fixed inclination center of the downstream component is higher than the center of gravity of the downstream component.

2. The adaptive downstream power generation system according to claim 1, characterized in that: The buoyancy control assembly includes the base body and / or the long sub-body, and the base body and / or the long sub-body have a buoyancy control cabin, and the sinking or floating of the adaptive downstream power generation system is controlled by injecting water into the buoyancy control cabin to exhaust air or injecting air to drain water.

3. The adaptive downstream power generation system according to claim 2, characterized in that: The long body includes a first long body and a second long body, the center line of the first long body intersects the center line of the pivot perpendicularly, and the second long body is fixed on the top of the first long body.

4. The adaptive downstream power generation system according to claim 3, characterized in that: The buoyancy control cabin is arranged in the second longest sub-body.

5. The adaptive downstream power generation system according to claim 4, characterized in that: The second longest sub-body is composed of two sections in the length direction and is located at two ends of the first longest sub-body in the length direction.

6. The adaptive downstream power generation system according to claim 2, characterized in that: The buoyancy control assembly further comprises a depth-fixing and stabilizing floating tube, the lower end of which is fixed on the base.

7. The adaptive downstream power generation system according to claim 1, characterized in that: The downstream component also includes a downstream turning-assisting arm, the lower end of which is fixed on the carrying frame.

8. The adaptive downstream power generation system according to any one of claims 1 to 7, characterized in that: A mounting seat, the mounting seat having an inner cavity and an opening for accommodating a majority of the outer shell of the generator; The mounting seat is fixed to one end of the mounting frame away from the base in the form of the opening facing upward, and the generator is placed in the inner cavity in the form of the rotating shaft facing upward and then fixed to the mounting seat.

9. The adaptive downstream power generation system according to claim 8, characterized in that: The open end of the mounting seat is provided with an axial groove, the grooves are evenly distributed in the circumferential direction, and the bottom of the mounting seat is also provided with an ear seat; The outer shell of the generator is provided with a convex block which matches with the groove in the circumferential direction, and the bottom of the outer shell is provided with an ear plate which matches with the ear seat.

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