Bidirectional automatic reversing fluid power generation device
By designing a bidirectional automatic reversing fluid power generation device, and adopting a horn-mouth and piston structure, the problem of cross-scenario versatility of fluid power generation devices is solved, realizing efficient energy conversion and wide application in different fluid environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-03
- Publication Date
- 2026-04-10
AI Technical Summary
Existing fluid power generation devices are difficult to apply across different scenarios due to their specialized design, resulting in high technology development costs, high barriers to industrialization, and a lack of compatibility with different fluid dynamic characteristics, making it difficult to meet the comprehensive development needs of multiple energy scenarios.
Design a bidirectional automatic commutation fluid power generation device, which adopts a bell mouth, piston and channel sealing ring structure. The piston can be designed as a reciprocating type or hinged connection to realize automatic commutation of fluid and efficient energy conversion. It is suitable for wind power, tidal power and river power generation.
It achieves the versatility of fluid power generation devices in different fluid environments, reduces development costs, expands the application scope, and improves energy development efficiency, and is applicable to land, water surface and underwater environments.
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Figure CN121828079A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of power generation, in particular to a universal fluid power generation device capable of adapting to various fluid environments. BACKGROUND
[0002] With the increasingly serious global climate change problem, the development and utilization of renewable energy has become the core direction of the energy strategy of each country. As one of the most mature clean energy technologies, wind energy has been applied on a large scale worldwide; tidal energy, with its unique advantages of high energy density and strong predictability, is becoming a key area of ocean energy development. However, existing fluid power generation devices generally adopt a specialized design approach, and wind power generation devices and tidal power generation devices differ significantly in structure, transmission method, and corrosion prevention design, making it difficult to be used across different scenarios.
[0003] This specialized design has brought many problems: on the one hand, different fluid environments require the development, manufacture, and maintenance of different types of power generation equipment, increasing the cost of technology development and the threshold for industrialization; on the other hand, China has a long coastline and numerous islands, and many regions have both available wind energy resources and tidal energy resources, making it difficult for single-function power generation devices to meet the comprehensive development needs of multi-energy scenarios. More importantly, the structural design of existing devices is often optimized for specific fluid media, lacking consideration of the compatibility of different fluid power characteristics, limiting the reuse value of core structural technology.
[0004] In addition, with the rapid development of the new energy industry, electric vehicles, electric ships, offshore platforms, and other types of energy-using equipment have put forward new demands for green energy supply. How to use wind energy resources in daily life to provide auxiliary energy supply for these devices has become a technical direction worthy of attention.
[0005] Therefore, it is of great significance to develop a universal fluid power generation device structure that can adapt to both wind power generation scenarios and tidal power generation scenarios, efficiently convert different fluid power through unified design, and organically combine with various energy-using equipment in daily life, in terms of reducing development costs, expanding application range, and improving fluid energy development efficiency. SUMMARY
[0006] The main technical problem to be solved by the present application is to provide a bidirectional automatic reversing fluid power generation device, which has at least two horn mouths, horn mouth connecting pipes, and a passage where the horn mouth connecting pipes are connected to or built in; there is a piston and a passage sealing ring between the horn mouths, and the piston has two movement designs, either reciprocating or connected to the pipe wall through a hinge.
[0007] When the piston is designed to reciprocate, the horn-connection pipe is connected to the pipe where the generator system is located, the horn-connection pipe enters the pipe where the generator system is located, and the horn-connection pipe has a hole. When fluid enters from a horn, it pushes the piston to move in the pipe after passing through the channel sealing ring, and the fluid flows out of the hole on the horn-connection pipe; at the same time, the fluid pushes other pistons to move, so that they are in contact with the channel sealing ring of the channel to close the channel, and the fluid cannot flow out of the horn where the channel is located, but only flows to the channel where the generator is located, and then flows out of the hole on the channel where the generator is located after the generator generates electricity.
[0008] When the piston is designed to reciprocate, the horn-connection pipe is connected to the pipe where the generator system is located, the horn-connection pipe enters the pipe where the generator system is located, and the horn-connection pipe has a hole. When fluid enters from a horn, it pushes the piston to move in the pipe after passing through the channel sealing ring, and the fluid flows out of the hole on the horn-connection pipe; at the same time, the fluid pushes other pistons to move, so that they are in contact with the channel sealing ring of the channel to close the channel, and the fluid cannot flow out of the horn where the channel is located, but only flows to the channel where the generator is located, and then flows out of the hole on the channel where the generator is located after the generator generates electricity.
[0009] The device can be combined in different ways, and can be used for land wind power generation, water surface wind power generation, sea surface wind power and tidal power generation, and underwater current power generation. Further, the device can be used as an auxiliary power generation equipment for electric vehicles in daily life, and is installed on the roof of a vehicle, the top of a charging station or the like, and generates electricity by using wind power to supplement the power of a vehicle battery. The device can also be installed on the top of a charging pile to supplement the power of a charging pile energy storage battery.
[0010] To solve the above technical problems, the present application provides the following technical solutions: BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure in embodiment 1 of the present application; Figure 2 It is a schematic diagram of the overall structure in embodiment 1 of the present application; Figure 3 It is a schematic diagram of the overall structure in embodiment 2 of the present application; Figure 4 It is a schematic diagram of the overall structure in embodiment 2 of the present application; Figure 5 It is a schematic diagram of the overall structure in embodiment 3 of the present application; Figure 6 It is a schematic diagram of the overall structure in embodiment 4 of the present application, which is a combination of wind energy and tidal energy. The upper part is a plurality of Figure 3The power generation unit shown has each unit structure connected to a cavity, which is connected to the channel (6c) where the generator is located. The lower water flow power generation equipment is rigidly connected through the connecting body (12) to realize the combined power generation of sea surface wind power and tidal energy. Figure 7 This is a schematic diagram of a real-life application scenario of the present invention combined with the roof of an electric vehicle according to Embodiment 2.
[0012] In the diagram: 1-Base; 2-Flare mouth; 2a-Left flare mouth; 2b-Right flare mouth; 2c-Front flare mouth; 2d-Rear flare mouth; 3-Hole; 3a-Left hole; 3b-Right hole; 3c-Channel hole for generator system; 4-Piston; 4a-Left piston; 4b-Right piston; 4c-Front piston; 4d-Rear piston; 5-Channel sealing ring; 5a-Left channel sealing ring; 5b-Right channel sealing ring; 5c-Front channel sealing ring; 5d-Rear channel sealing ring; 6-Cylindrical hollow tube; 6a-Left channel connected to the small opening of the left flare mouth; 6b-Right channel connected to the small opening of the right flare mouth; 6c-Channel connecting the generator system; 7-Hinge; 7a-Left hinge; 7b-Right hinge; 8-Generator system; 9-Floating body; 10-Horizontal plane; 11-Weight; 12-Connector; 13-Electric vehicle. Detailed Implementation
[0013] Example 1: Basic reciprocating fluid power generation device This embodiment provides a basic structure for a fluid power generation device employing reciprocating piston motion, the structure of which is as follows: Figure 1 and Figure 2 As shown.
[0014] like Figure 1 As shown, the device in this embodiment includes a base (1), on which a cylindrical hollow tube (6c) is disposed. The cylindrical hollow tube (6c) is the channel where the generator system is located. A left channel (6a) and a right channel (6b) are respectively connected to the side wall of the cylindrical hollow tube (6c). A left flared port (2a) is disposed at the left end of the left channel (6a), and a right flared port (2b) is disposed at the right end of the right channel (6b). The larger end of the flared port (2) faces the external fluid, and the smaller end is connected to the channel (6c), for efficiently capturing and converging the fluid, which includes air or water.
[0015] like Figure 2As shown, several holes (3) are provided on the left channel (6a) and right channel (6b), that is, on the pipe wall near the small end of the flared mouth (2), namely the left hole (3a) and the right hole (3b). After entering the channel (6c) where the generator system is located, the left channel (6a) and right channel (6b) are arranged horizontally, vertically upward or at a certain angle so that the fluid can flow smoothly into the channel (6c). These holes (3) are the outlets after the fluid completes the work of pushing the piston (4) in the left channel (6a) and right channel (6b). The fluid enters the channel (6c) where the generator is located from the holes (3), drives the generator system (8) to generate electricity, and then is discharged from the outside of the device through the holes (3c) on the channel (6c).
[0016] Inside the left channel (6a) and the right channel (6b), reciprocating pistons (4) are respectively provided, namely the left piston (4a) and the right piston (4b). The left channel sealing ring (5a) is provided on the inner wall of the left channel (6a), located to the left of the left piston (4a); the right channel sealing ring (5b) is provided on the inner wall of the right channel (6b), located to the right of the right piston (4b). The inner diameter of the channel sealing ring (5) is smaller than the outer diameter of the piston (4), so that when the piston (4) moves to contact the channel sealing ring (5), it is limited and a reliable seal is formed. The generator system (8) is provided inside the cylindrical hollow tube (6c) or in a position communicating with the channel (6c), and its fluid input end is connected to the internal channel of the channel (6c).
[0017] The working principle of this embodiment is as follows: In the initial state, it is assumed that the fluid flows from left to right. The fluid is first gathered and accelerated by the left flare (2a) and enters the left channel (6a). At this time, the left piston (4a) is located near the left flare (2a), and the pressure of the fluid pushes the left piston (4a) to move to the right. After the left piston (4a) moves to the right, the left hole (3a) is exposed, and the fluid pushing the left piston (4a) flows out from the left hole (3a), flows to the right and pushes the right piston (4b) to move to the right. When the right piston (4b) moves to the right and contacts the right channel sealing ring (5b), the two fit tightly together, thereby sealing the right channel (6b) where the right flare (2b) is located, preventing the fluid from entering or leaking from this end. Since the right end channel is closed, the fluid continuously entering from the left flare (2a) cannot flow out to the right end, but can only be guided to the channel (6c) located in the middle, and then enter the inlet of the generator system (8). High-pressure fluid enters the generator system (8), driving the impeller or turbine inside to rotate, thereby generating electricity. The fluid that has done work is finally discharged from the outside of the device through the hole (3c) on the channel (6c).
[0018] When the fluid flow direction changes, for example, from right to left, the fluid is first gathered and accelerated by the right flare (2b) and enters the right channel (6b). At this time, the right piston (4b) is located near the right flare (2b), and the pressure of the fluid pushes the right piston (4b) to move to the left. After the right piston (4b) moves to the left, the right hole (3b) is exposed, and the fluid pushing the right piston (4b) flows out from the right hole (3b), flows to the left and pushes the left piston (4a) to move to the left. When the left piston (4a) moves to the left and contacts the left channel sealing ring (5a), the two fit tightly together, thereby sealing the left channel (6a) where the left flare (2a) is located. Since the left end channel is closed, the fluid continuously entering from the right flare (2b) cannot flow out to the left end, but can only be guided to the channel (6c) located in the middle, and then enter the inlet of the generator system (8), drive the generator to generate electricity and discharge from the hole (3c) on the channel (6c). In this way, regardless of the direction of the fluid, the fluid can be directed to the generator system (8) to generate electricity.
[0019] The device in this embodiment can be fixedly installed on land, water surface platform or underwater foundation via base (1), and is suitable for wind energy, tidal energy and river energy power generation scenarios with unidirectional or bidirectional flow.
[0020] Example 2: Hinge Piston-Type Fluid Power Generation Device The main difference between this embodiment and Embodiment 1 lies in the piston's movement and the arrangement of the orifices. This embodiment uses a hinged piston to reduce friction and improve response speed. Its structure is as follows: Figure 3 and Figure 4 As shown. In this embodiment, no holes (3) are provided on the left channel (6a) and the right channel (6b).
[0021] like Figure 3 As shown, the device in this embodiment includes a base (1), on which a cylindrical hollow tube (6c) is disposed. The cylindrical hollow tube (6c) is the channel where the generator system is located. At the top of the cylindrical hollow tube (6c), a left channel (6a) and a right channel (6b) are respectively connected. The left end of the left channel (6a) is provided with a left flared opening (2a), and the right end of the right channel (6b) is provided with a right flared opening (2b). Unlike embodiment 1, in this embodiment, the piston (4) is connected to the inner wall of the channel by a hinge (7).
[0022] Specifically, such as Figure 4As shown, the left piston (4a) is connected to the wall of the left channel (6a) inside the left flared mouth (2a) via the left hinge (7a); the right piston (4b) is connected to the wall of the right channel (6b) inside the right flared mouth (2b) via the right hinge (7b). The shape of the piston (4) matches the cross-section of the channel and can rotate around a fixed axis at a certain angle under the constraint of the hinge (7). The channel sealing ring (5) is correspondingly set in the inner wall of the left channel (6a) and the right channel (6b), and its position and size are designed so that when the piston (4) rotates to a certain angle with the channel wall, it can form a seal with the channel sealing ring (5).
[0023] The working principle of this embodiment is as follows: Taking fluid flow from left to right as an example. After the fluid enters the left flare (2a), it flows through the left channel sealing ring (5a) and then impacts the left piston (4a). Under the pressure of the fluid, the left piston (4a) rotates around the left hinge (7a), thereby opening the passage from the left flare (2a) to the left channel (6a). The fluid continues to flow to the right, and after passing the position of the left piston (4a), it pushes the right piston (4b). This pressure forces the right piston (4b) to rotate around the right hinge (7b) until it presses tightly against the right channel sealing ring (5b), completely sealing the right channel (6b). In this way, the main flow path of the fluid flowing in from the left flare (2a) is forced to be guided to the middle channel (6c), and then enters the generator system (8). After the fluid drives the generator system (8) to generate electricity, it is discharged from the outside of the device through the hole (3c) on the channel (6c).
[0024] As the fluid flows from right to left, it enters the right flared port (2b), flows through the right channel sealing ring (5b), and then impacts the right piston (4b). Under the pressure of the fluid, the right piston (4b) rotates around the right hinge (7b), thereby opening the passage from the right flared port (2b) to the right channel (6b). The fluid continues to flow to the left, pushing the left piston (4a) after passing the position of the right piston (4b). This pressure forces the left piston (4a) to rotate around the left hinge (7a) until it presses tightly against the left channel sealing ring (5a), completely sealing the left channel (6a). In this way, the fluid flowing in from the right flared port (2b) is forced to the middle channel (6c), and then enters the generator system (8) to generate electricity. The fluid that has done work is discharged from the outside of the device through the hole (3c) on the channel (6c).
[0025] The piston (4) in this embodiment is a rotary piston. Compared with a reciprocating piston, it has less motion resistance and more sensitive response, making it particularly suitable for wind energy and tidal energy scenarios where flow velocity changes frequently.
[0026] Example 3: Floating Hydroelectric Power Generation Device This embodiment provides a floating fluid power generation device suitable for operation on or underwater, its structure as follows: Figure 5 As shown, it is particularly suitable for hydroelectric power generation scenarios such as tidal energy and river energy.
[0027] like Figure 5 As shown, this embodiment adds a float (9) and a weight (11) to the structure described in Embodiment 1 or Embodiment 2. Specifically, the entire device is fixedly connected to the float (9) through a connector. The float (9) floats on the horizontal surface (10), providing buoyancy for the entire device and suspending it at a preset depth in the water. A weight (11) is connected to the lower part or bottom of the device. The weight (11) is connected to the device through a cable or rigid connecting rod and is suspended in the water, playing a stabilizing and counterweight role, preventing the device from swinging excessively or overturning under the impact of water flow.
[0028] In this embodiment, the main body of the device is completely submerged below the horizontal plane (10), and the flared openings (2) at both ends face the direction of water flow. When the water flows, whether it is the reciprocating flow caused by high tide or low tide, or the unidirectional flow of the river, the working principle inside the device is exactly the same as in embodiment 1 or embodiment 2: the water flow converges through the flared openings (2), drives the piston (4) to act, automatically closes the back flow side channel, and guides the water flow to the generator system (8) to generate electricity.
[0029] By adjusting the buoyancy of the float (9) and the weight of the weight (11), the suspension depth of the device in the water can be controlled, ensuring that it always operates in the water layer where the water flow energy is most concentrated. This embodiment does not require the construction of a fixed underwater foundation, and has the advantages of low investment, flexible deployment, and mobility, making it particularly suitable for deep-water areas or scenarios with temporary power generation needs.
[0030] Example 4: Multidirectional fluid capture combined power generation device This embodiment demonstrates how to combine multiple basic units to achieve efficient capture and utilization of fluids from different directions, as shown in the following structure. Figure 6 As shown. The device in this embodiment is particularly suitable for environments with variable wind direction or complex marine environments where wind and current coexist, and can realize combined power generation from sea surface wind power and tidal energy.
[0031] like Figure 6 As shown, the device in this embodiment includes a connector (12). Multiple power generation units are connected in a cross-shaped arrangement on the upper part of the connector (12), each power generation unit employing the hinged piston structure described in Embodiment 2 (e.g., Figure 3(As shown). Specifically, a front horn (2c), a rear horn (2d), a left horn (2a), and a right horn (2b) are respectively provided in the front, rear, left, and right directions. Each horn (2) is connected to an independent channel, and each channel is equipped with a piston (4) connected by a hinge (7) and a channel sealing ring (5). Each unit structure is connected to a cavity, which is connected to the channel (6c) where the generator is located. The upper part of the entire device consists of multiple Figure 3 The power generation unit shown is used to capture wind power; the lower part is rigidly connected to the floating structure described in Embodiment 3 (such as...) via a connector (12). Figure 5 (As shown), used to float on the sea surface and capture tidal energy.
[0032] The working principle of this embodiment is similar to that of embodiment 2, but the directionality is extended. For ease of understanding, the front horn (2c) is set to correspond to the south, the rear horn (2d) to the north, the left horn (2a) to the west, and the right horn (2b) to the east. Assuming that the wind or water flow comes from the northeast, the pistons (4) in the right horn (2b) (east) and the rear horn (2d) (north) facing the direction of the flow will be opened by the fluid, opening the channels in these two directions; while the pistons (4) in the left horn (2a) (west) and the front horn (2c) (south) facing away from the direction of the flow will be closed under the fluid pressure, sealing the channels in these two directions. All the fluid flowing in from the open horn (2) is forced to converge into the central chamber, jointly driving the generator system (8) to generate electricity efficiently. When the fluid direction changes, the corresponding piston (4) automatically opens or closes, always ensuring that at least one channel is open and the channels in other directions are closed.
[0033] This modular structure greatly improves the device's adaptability to fluid direction, ensuring maximum energy capture opening under any wind or flow conditions, and can be widely applied to offshore wind and tidal power generation scenarios.
[0034] Example 5: Application scenario of wind power generation on the roof of electric vehicles This embodiment demonstrates a specific application scenario of the fluid power generation device of the present invention in daily life. Specifically, the hinged piston-type fluid power generation device described in Embodiment 2 is installed on the roof of an electric vehicle, generating electricity using natural wind when the vehicle is stationary, or using relative wind force during its movement for auxiliary power generation. Its structure is as follows: Figure 7 As shown.
[0035] like Figure 7As shown, at least one fluid power generation device as described in Example 2 is installed on the roof of an electric vehicle (13). The device is fixed to the roof by a base (1) or a special bracket, with its two flared ends (2) facing the front and rear directions of the vehicle, respectively. The fluid power generation device is connected to the electrical system of the electric vehicle (13), and the generated energy is rectified, regulated, and stored in the vehicle's power battery, or directly supplies power to the vehicle's auxiliary electrical equipment.
[0036] The working principle of this embodiment is as follows: When the electric vehicle (13) moves forward, air flows from front to back relative to the vehicle. The airflow enters the forward-facing horn (2) (which, depending on the installation direction, may correspond to either the left horn (2a) or the right horn (2b)) and directly impacts the piston (4) on that side. Figure 7 Taking the installation method shown as an example, assuming the left horn opening (2a) faces forward, the airflow enters and impacts the left piston (4a). Under the pressure of the airflow, the left piston (4a) rotates around the left hinge (7a), opening the front channel. At the same time, the right piston (4b) is subjected to the pressure of the airflow and rotates around the right hinge (7b), tightly fitting with the right channel sealing ring (5b) and sealing the rear channel. In this way, the airflow rushing in from the front horn opening is forced to the generator system (8) in the middle, driving the generator to rotate and generate electricity. The airflow after doing work is discharged from the hole (3c) on the channel (6c). When the vehicle is reversing, the airflow direction changes, so the rear piston opens and the front piston closes, similarly guiding the airflow to the generator system (8) to generate electricity.
[0037] This embodiment fully utilizes the relative wind force generated during the daily driving of electric vehicles, converting previously wasted wind energy into electrical energy. This electrical energy can provide auxiliary charging for the vehicle battery, extending the driving range. The device has a simple structure, consumes no additional energy, requires no manual intervention, and can automatically switch airflow channels according to the driving direction, achieving highly efficient utilization of wind energy.
[0038] This embodiment is only an example of an application scenario in life. The fluid power generation device of the present invention can also be installed on other types of vehicles, ships, buildings and other carriers to generate electricity using natural wind or relative wind, and has a wide range of application prospects.
[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A bi-directional automatic commutated fluid power generation device, characterized by, The device comprises at least two horn mouths (2) connected with pipes provided with holes (3), a generator system (8) connected with the pipes connected with the horn mouths (2), a piston (4) arranged in the pipes between the horn mouths (2), and a channel sealing ring (5) arranged on the inner wall of the pipes and cooperating with the piston (4) to realize the opening and closure of the channel; when the fluid enters from one direction, the corresponding piston (4) is pushed to move to open the channel in the direction, and the piston (4) in the other direction is pushed to contact the channel sealing ring (5) to close the channel in the direction, the fluid is forced to flow to the generator system (8) to generate electricity, and the fluid after work is discharged from the hole in the channel where the generator is arranged. The piston (4) is a reciprocating piston, when the fluid enters from one horn mouth (2), the piston (4) is pushed to move in the pipe, and the fluid flows out from the hole (3) in the pipe, while the other piston (4) is pushed to move to contact the corresponding channel sealing ring (5) to close the channel.
2. The bi-directional automatic commutated fluid power generation apparatus of claim 1, wherein, The piston (4) is connected with the inner wall of the pipe through a hinge (7), when the fluid enters from the horn mouth (2), the piston (4) rotates at the hinge (7) to disengage from the channel sealing ring (5) to open the channel, while the other piston (4) is pushed to contact the channel sealing ring (5) to close the channel.
3. The bi-directional automatic commutated fluid power generation apparatus of claim 1, wherein, The device comprises a channel (6c) where the generator is arranged and first and second channels connected at two ends thereof respectively, the horn mouths (2) are arranged at the ends of the first and second channels, and the generator system (8) is connected with the channel (6c) where the generator is arranged.
4. The bi-directional automatic commutated fluid power generation apparatus of claim 1, wherein, The device comprises a plurality of horn mouths (2) and corresponding pipes distributed in multiple directions, the plurality of pipes are connected to a connecting body (12), the upper part of the connecting body (12) is provided with the channel (6c) where the generator is arranged, and the generator system (8) is arranged in the channel (6c) where the generator is arranged.
5. The bi-directional automatic commutated fluid power generation apparatus of claim 1, wherein, The device further comprises a float (9) and a weight (11), the float (9) is used to suspend the device in water, and the weight (11) is used to stabilize the posture of the device.
6. The bi-directional automatic commutated fluid power generation apparatus of claim 1, wherein, The device is suitable for wind power generation scene and / or water flow power generation scene, and the fluid is air or water.
7. The bi-directional automatic commutated fluid power generation apparatus of claim 1, wherein, The bidirectional automatic reversing fluid power generation device according to any one of claims 1 to 7 is electrically connected with the energy utilization equipment to provide electric energy for the energy utilization equipment.
8. An energy device, characterized by The energy utilization equipment is an electric vehicle, an electric ship, an offshore operation platform or an ocean observation platform.
9. The powered device of claim 8, wherein, The bidirectional automatic reversing fluid power generation device is arranged at the top, side or bottom of the energy utilization equipment, and utilizes the kinetic energy of fluid generated by natural wind or relative motion to generate electricity.
10. The powered device of claim 8, wherein, The bidirectional automatic reversing fluid power generation device is arranged at the top, side or bottom of the energy utilization equipment, and utilizes the kinetic energy of fluid generated by natural wind or relative motion to generate electricity.