Wind power plant

Abstract

The present disclosure provides a kind of wind power generation equipment, it is related to new energy technology field, especially it is related to wind power generation, off-grid power supply field.The specific implementation scheme is: wind power generation equipment includes fan assembly, energy storage device and control device, fan assembly includes blade, connecting portion and generator;Blade is connected with connecting portion and drives connecting portion to rotate, the rotor of generator is fixedly connected with connecting portion and generates electric energy using the rotation of rotor;Connecting portion is used to switch blade between unfolding position and contraction position by structural deformation.Generator and energy storage device are electrically connected with control device respectively, and control device is used to store the electric energy generated by generator to energy storage device.

Description

Technical Field

[0001] This disclosure relates to the field of new energy technology, particularly to wind power generation and off-grid power supply, and more specifically, this disclosure provides a wind power generation device. Background Technology

[0002] With the acceleration of the global energy transition, new energy power generation technologies such as wind and solar power have developed rapidly in recent years and have achieved large-scale commercial application. However, in areas far from the grid coverage (such as remote mountainous areas, islands, border outposts, field operation camps, emergency rescue sites, etc.) and in specific distributed application scenarios (such as IoT sensor nodes, small communication base stations, outdoor lighting, mobile device charging stations, etc.), the demand for independent, miniaturized, and ready-to-use renewable energy power supply solutions is becoming increasingly urgent. Summary of the Invention

[0003] This disclosure provides a wind power generation device, including a wind turbine assembly, an energy storage device, and a control device. The wind turbine assembly includes blades, a connecting part, and a generator. The blades are connected to the connecting part and drive the connecting part to rotate. The rotor of the generator is fixedly connected to the connecting part and generates electrical energy using the rotation of the rotor. The connecting part is used to switch the blades between an extended position and a retracted position through structural deformation. The generator and the energy storage device are electrically connected to the control device, which is used to store the electrical energy generated by the generator in the energy storage device.

[0004] According to another embodiment of this disclosure, the connecting part includes a fixed base and a connecting rod. The rotor is fixedly connected to the fixed base. A first end of the connecting rod is hinged to the fixed base, and a second end of the connecting rod is hinged to the blade.

[0005] According to another embodiment of this disclosure, the wind turbine assembly further includes a first locking portion and a second locking portion. The first locking portion is disposed at a first end of the connecting rod and is used to restrict rotation between the first end of the connecting rod and the fixed base when the blade is in the deployed position. The second locking portion is disposed at a second end of the connecting rod and is used to restrict rotation between the second end of the connecting rod and the blade when the blade is in the deployed position.

[0006] According to another embodiment of this disclosure, the mounting base, generator, control device, and energy storage device are arranged sequentially along the axial direction of the blade's rotation axis; and when the blade is in the retracted position, the mounting base, generator, control device, and energy storage device are all located between multiple blades.

[0007] According to another embodiment of this disclosure, the wind power generation equipment further includes a housing having a cavity for accommodating a wind turbine assembly, a control device, and an energy storage device, and the housing having openings for the wind turbine assembly to move into and out of the housing. When the blades are in the retracted position, the wind turbine assembly, the control device, and the energy storage device are all located within the cavity.

[0008] According to another embodiment of this disclosure, the housing is provided with a first snap-fit ​​portion, and at least one of the generator, control device, and energy storage device is provided with a second snap-fit ​​portion that cooperates and is fixed with the first snap-fit ​​portion.

[0009] According to another embodiment of this disclosure, the opening of the housing is provided at the top of the housing, and the wind power generation equipment also includes a cover, which is detachably and sealingly connected to the housing.

[0010] According to another embodiment of this disclosure, the shell has a cylindrical structure with a diameter of 0.35±0.05 meters, a height of 1±0.1 meters, a blade chord length of 0.12±0.02 meters, and a blade span of 0.9±0.1 mm.

[0011] According to another embodiment of this disclosure, a cable outlet is provided at the bottom of the housing; the energy storage device includes an energy storage section and a cable, the first end of the cable is electrically connected to the power supply port of the energy storage section, the middle part of the cable passes through the cable outlet, and the second end of the cable has a power supply interface located outside the housing.

[0012] According to another embodiment of this disclosure, the blade is strip-shaped, and the extension direction of the blade is parallel to the axis of rotation of the blade.

[0013] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0014] The foregoing contents, as well as other objects, features, and advantages of this disclosure, will become clearer from the following description of embodiments with reference to the accompanying drawings, in which:

[0015] FIG. 1A This is a schematic structural diagram of a wind power generation device in an deployed state according to an embodiment of the present disclosure;

[0016] FIG. 1B This is a schematic structural diagram of a wind power generation device in a semi-deployed state according to an embodiment of the present disclosure;

[0017] FIG. 1C This is a schematic structural diagram of a wind power generation device in a retracted state according to an embodiment of the present disclosure;

[0018] FIG. 2 This is a schematic structural diagram of a wind power generation device according to an embodiment of the present disclosure; and

[0019] FIG. 3 This is a schematic structural diagram of the external shape of a wind power generation device according to an embodiment of the present disclosure.

[0020] The reference numerals in the figure are as follows:

[0021] Wind turbine assembly 100, blades 110, generator 120, connecting part 130, fixing base 131, connecting rod 132; control device 200; energy storage device 300; shell 400; cover 500. Detailed Implementation

[0022] The embodiments of the present disclosure will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the disclosure. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of the present disclosure for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts of the present disclosure.

[0023] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this disclosure. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0024] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0025] When using expressions such as "at least one of A, B and C", they should generally be interpreted in accordance with the meaning that is commonly understood by those skilled in the art (e.g., "a system having at least one of A, B and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B and C, etc.).

[0026] In some related technologies, wind power equipment is designed to be fixed or only partially disassembled, resulting in a large overall footprint and heavy weight during transportation and deployment. On the one hand, this is not conducive to efficient space utilization and makes it difficult to meet the needs of space-constrained scenarios (such as small boats and narrow campsites). On the other hand, the poor portability of the equipment makes transportation extremely inconvenient and makes it difficult to meet the needs of rapid deployment (such as emergency rescue and disaster relief, and field operation relocation).

[0027] In other related technologies, the wind turbine and independent energy storage unit are designed and transported separately. This approach results in low system integration, requiring users to separately handle and manage the wind turbine and energy storage equipment, increasing transportation burden and management complexity. Furthermore, the dispersed equipment is prone to misalignment, loss, or loosening during transportation or use, reducing overall system reliability and user experience. This split design is clearly unsuitable for power usage scenarios requiring mobility and portability. In addition, this approach requires on-site electrical connections (such as wiring) between components during deployment, which is cumbersome, inefficient, and demands higher technical skills from users, increasing installation time and the risk of errors.

[0028] These shortcomings collectively lead to difficulties in deployment, low efficiency, inconvenience in use, and limited reliability of related technologies when facing distributed, mobile, and emergency low-power power supply scenarios (such as outdoor camping, remote mountainous areas, small boats, border outposts, emergency disaster relief sites, and field scientific research and monitoring points). As a result, these technologies cannot meet users' needs for fast, convenient, and reliable off-grid power supply.

[0029] This disclosure aims to provide a wind power generation device that is an integrated wind turbine and energy storage unit, possessing both power generation and energy storage functions. This wind power generation device can be folded to reduce its size, thus facilitating transportation. Furthermore, this wind power generation device pre-integrates the wind turbine components, control device, and energy storage device physically and electrically, improving deployment efficiency.

[0030] The technical solutions provided in this disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Please refer to FIGS. 1A-1C This embodiment provides a wind power generation device, which includes a wind turbine assembly 100, a control device 200, and an energy storage device 300. The wind turbine assembly 100 includes blades 110, a generator 120, and a connecting part 130.

[0032] The blade 110 is connected to the connecting part 130, and the connection method can be a fixed connection or a hinged connection. The blade 110 rotates under the action of wind force, driving the connecting part 130 to rotate as well. The blade 110 can be, for example, a symmetrical airfoil blade. The chord length of the blade 110 can be 0.12±0.02m, and the span of the blade 110 can be 0.9±0.1mm. For example, after the blade 110 is deployed, the rotor diameter is 1m, and the height is equal to the blade 110 span. At a rated wind speed of 12m / s, the power generation is 200W. It should be noted that the structure and size of the blade 110 can be selected according to actual needs; this embodiment does not limit the structure and size of the blade 110. The number of blades 110 can be three.

[0033] The generator 120 includes a stator and a rotor. The rotor of the generator 120 is fixedly connected to the connecting part 130 and rotates under the drive of the connecting part 130. The rotation of the rotor causes the coils of the stator to cut the magnetic field lines, thereby generating electrical energy using the rotation of the rotor. The generator 120 is electrically connected to the control device 200. The generator 120 can be, for example, a 250W permanent magnet synchronous direct-drive generator with a rated speed of 600 rpm. The generator 120 can be directly connected to the connecting part 130 through a flexible coupling to eliminate transmission losses. This embodiment does not limit the structure and speed parameters of the generator.

[0034] The connecting portion 130 is used to switch the blade 110 between an extended position and a retracted position through structural deformation. The extended position is away from the rotation axis of the blade 110, while the retracted position is close to the rotation axis of the blade 110. For example, the connecting portion 130 includes a telescopic component such as a cylinder or electric cylinder, which switches the position of the blade 110 by telescoping. Alternatively, the connecting portion 130 may employ a folding structure, which switches the position of the blade 110 by folding.

[0035] The energy storage device 300 is mainly used to store electrical energy so that it can provide power when needed. The energy storage device 300 can be equipped with a built-in 1 kWh high-energy-density lithium-ion battery pack with a cycle life of ≥3000 cycles, and integrates a BMS (Battery Management System) to realize energy storage and charge / discharge protection. The energy storage device 300 is electrically connected to the control device 200. This embodiment does not limit the structure of the energy storage device 300.

[0036] The control device 200 is used to store the electrical energy generated by the generator 120 into the energy storage device 300. During operation, the control device 200 can rectify and boost the electrical energy generated by the generator 120 before transmitting it to the energy storage device 300. For example, the control device 200 can be an intelligent controller installed in a square or other arbitrarily shaped sealed cavity, equipped with an adaptive MPPT (Maximum Power Point Tracking) algorithm, with a wind speed response range of 5-25 m / s, and can optimize the tip speed ratio in real time to maximize wind energy capture efficiency.

[0037] According to the technical solution provided in this disclosure, on the one hand, the connecting part 130 can undergo structural deformation to change the position of the blade 110. Therefore, during operation, the blade 110 can be in the deployed position, thereby effectively capturing wind energy and forming a stable and efficient power generation structure. During transportation, the connecting part 130 can be folded or retracted, causing the blade 110 to retract to the retracted position. This results in a smaller space occupation for the wind power generation equipment, which is conducive to efficient space utilization, meets the needs of small space scenarios, and improves the portability of the equipment for convenient transportation. On the other hand, since the wind turbine assembly 100, control device 200, and energy storage device 300 are pre-assembled, that is, the wind turbine assembly 100, control device 200, and energy storage device 300 are integrated together physically and electrically, there is no need to transport each component separately, avoiding loose connections between components, reducing exposed interfaces, reducing the risk of connection failures caused by vibration or environmental humidity during transportation, and improving equipment reliability. At the same time, there is no need to assemble each component on-site, eliminating complex electrical connection links on-site, improving deployment efficiency, improving operational convenience, and thus improving the user experience.

[0038] According to another embodiment of this disclosure, the connecting part 130 includes a fixed base 131 and connecting rods 132. The fixed base 131 is fixedly connected to the rotor of the generator 120 by bolts, welding or other means, and a flange can be used as the fixed base 131. There can be multiple connecting rods 132, and each connecting rod 132 corresponds to a blade 110. The first end of each connecting rod 132 is hinged to the fixed base 131, and the second end of the connecting rod 132 is hinged to the blade 110.

[0039] According to another embodiment of this disclosure, the fan assembly 100 further includes locking structures, each corresponding to a blade 110. Each locking structure may include a first locking part and a second locking part. The first locking part is disposed at the first end of the connecting rod 132 and is used to restrict rotation between the first end of the connecting rod 132 and the fixed seat 131 when the blade 110 is in the deployed position. The second locking part is disposed at the second end of the connecting rod 132 and is used to restrict rotation between the second end of the connecting rod 132 and the blade 110 when the blade 110 is in the deployed position. This embodiment provides a first locking part and a second locking part, so that when the blade 110 is in the deployed position, the hinge structures at both ends of the connecting rod 132 can be locked by the first locking part and the second locking part, preventing the hinge structures of the connecting rod 132 from rotating, thereby ensuring that the blade 110 remains in the deployed position without displacement.

[0040] For example, the first locking part is a detachable pull rod, one end of which is fixedly connected to the first end of the connecting rod 132, and the other end is fixed to the fixing seat 131. The pull rod keeps the two connection positions of the first end of the connecting rod 132 and the fixing seat 131 at a fixed distance, thereby preventing relative rotation between the connecting rod 132 and the fixing seat 131. Similarly, the second locking part is a detachable pull rod, one end of which is fixedly connected to the second end of the connecting rod 132, and the other end is fixed to the blade 110. The pull rod keeps the two connection positions of the second end of the connecting rod 132 and the blade 110 at a fixed distance, thereby preventing relative rotation between the blade 110 and the connecting rod 132.

[0041] According to another embodiment of this disclosure, the internal components of the housing 400 adopt a vertically layered modular design. For example, the mounting base 131, generator 120, control device 200, and energy storage device 300 are arranged sequentially along the axial direction of the rotation axis of the blade 110. Furthermore, when the blade 110 is in the retracted position, the mounting base 131, generator 120, control device 200, and energy storage device 300 are all located between multiple blades 110. In this embodiment, because the components are arranged vertically, the space occupied in the horizontal direction is smaller.

[0042] According to another embodiment of this disclosure, the wind power generation equipment further includes a housing 400. The housing 400 has a cavity for accommodating the wind turbine assembly 100, the control device 200, and the energy storage device 300, and the housing 400 has an opening for the wind turbine assembly 100 to move into and out of the housing 400. When the blades 110 are in the retracted position, the wind turbine assembly 100, the control device 200, and the energy storage device 300 are all located within the cavity. In this way, the housing 400 can provide centralized protection for the internal wind turbine assembly 100, control device 200, and energy storage device 300, thereby further improving the reliability of the wind power generation equipment in mobile environments. For example, the housing 400 has a cylindrical structure with a diameter of 0.35 ± 0.05 meters and a height of 1 ± 0.1 meters, so that the wind power generation equipment has a sealed cylindrical configuration in the retracted state, with an overall volume of less than 0.1 m³.

[0043] According to another embodiment of this disclosure, such as FIG. 2 and FIG. 3 As shown, the wind power generation equipment cover 500. The opening of the housing 400 is located at the top of the housing 400, and the cover 500 is detachably and sealed to the housing 400, thereby serving to prevent water and dust.

[0044] According to another embodiment of this disclosure, the housing 400 is provided with a first latching portion, and at least one of the generator 120, control device 200, and energy storage device 300 is provided with a second latching portion that cooperates and is fixed with the first latching portion. During use, the fan assembly 100, control device 200, and energy storage device 300 inside the housing 400 can be lifted upwards as a whole, so that the blade 110 is higher than the housing 400. This allows the blade 110 to be pulled apart radially when needed, allowing the connecting rod 132 to fully unfold. Furthermore, after the blade 110 is lifted from the housing 400, the first latching portion engages with the second latching portion, thereby maintaining the blade 110 at a fixed height and preventing the blade 110 from retracting downwards into the housing 400, thus ensuring the normal operation of the blade 110.

[0045] According to another embodiment of this disclosure, a cable outlet is provided at the bottom of the housing 400. The energy storage device 300 includes an energy storage section and a cable. The first end of the cable is electrically connected to the power supply port of the energy storage section, the middle part of the cable passes through the cable outlet, and the second end of the cable has a power supply interface located outside the housing 400. Connecting the power supply interface of the cable to the electrical equipment allows for power supply to the equipment. In practical applications, since the fan assembly 100, the control device 200, and the energy storage device 300 need to be raised upwards by a certain distance during use, allowing the blades 110 to extend beyond the housing 400, a telescopic cable can be used.

[0046] According to another embodiment of this disclosure, the wind turbine assembly 100 is a vertical axis wind turbine, in which the blades 110 are strip-shaped, and the extension direction of the blades 110 is parallel to the axis of rotation of the blades 110. This embodiment uses a vertical axis wind turbine, which, compared with a horizontal axis wind turbine, has the advantages of relatively simple structure, no need for a complex yaw wind-following system, lower operating noise, insensitivity to changes in wind direction, and relatively simple maintenance. In particular, its characteristic of low starting wind speed allows it to effectively capture wind energy even in environments with variable or low wind speeds, making it more suitable for distributed, low-power applications.

[0047] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this disclosure can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this disclosure. In particular, the features described in the various embodiments and / or claims of this disclosure can be combined and / or combined in various ways without departing from the spirit and teachings of this disclosure. All such combinations and / or combinations fall within the scope of this disclosure.

[0048] The embodiments of this disclosure have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of this disclosure. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of this disclosure is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of this disclosure, and all such substitutions and modifications should fall within the scope of this disclosure.

Claims

1. A wind power generation device, characterized in that, include: A wind turbine assembly includes blades, a connecting part, and a generator; the blades are connected to the connecting part and drive the connecting part to rotate; the rotor of the generator is fixedly connected to the connecting part and generates electrical energy by the rotation of the rotor; the connecting part is used to switch the blades between an extended position and a retracted position through structural deformation. Energy storage devices; as well as A control device is provided, wherein the generator and the energy storage device are electrically connected to the control device, and the control device is used to store the electrical energy generated by the generator into the energy storage device.

2. The wind power generation equipment according to claim 1, characterized in that, The connecting part includes: A fixed base, wherein the rotor is fixedly connected to the fixed base; and A connecting rod, the first end of which is hinged to the fixed base, and the second end of which is hinged to the blade.

3. The wind power generation equipment according to claim 2, characterized in that, The wind turbine assembly also includes: A first locking part is disposed at the first end of the connecting rod and is used to restrict rotation between the first end of the connecting rod and the fixed base when the blade is in the deployed position; and A second locking part is disposed at the second end of the connecting rod and is used to restrict the rotation between the second end of the connecting rod and the blade when the blade is in the unfolded position.

4. The wind power generation equipment according to claim 2, characterized in that, The mounting base, the generator, the control device, and the energy storage device are arranged sequentially along the axial direction of the blade's rotation axis; and when the blade is in the retracted position, the mounting base, the generator, the control device, and the energy storage device are all located between multiple blades.

5. The wind power generation equipment according to claim 1, characterized in that, Also includes: The housing has a cavity for accommodating the wind turbine assembly, the control device, and the energy storage device, and the housing has an opening for the wind turbine assembly to move into and out of the housing; When the blades are in the retracted position, the wind turbine assembly, the control device, and the energy storage device are all located within the cavity.

6. The wind power generation equipment according to claim 5, characterized in that, The housing is provided with a first snap-fit ​​portion, and at least one of the generator, the control device, and the energy storage device is provided with a second snap-fit ​​portion that cooperates with and is fixed to the first snap-fit ​​portion.

7. The wind power generation equipment according to claim 5, characterized in that, The opening of the housing is located at the top of the housing, and the wind power generation equipment further includes: A cover body, which is detachably and sealingly connected to the housing.

8. The wind power generation equipment according to claim 5, characterized in that, The shell has a cylindrical structure with a diameter of 0.35±0.05 meters and a height of 1±0.1 meters. The blade has a chord length of 0.12±0.02 meters and a blade span of 0.9±0.1 mm.

9. The wind power generation equipment according to claim 5, characterized in that, The bottom of the housing is provided with a cable outlet; the energy storage device includes an energy storage unit and a cable, the first end of the cable is electrically connected to the power supply port of the energy storage unit, the middle part of the cable passes through the cable outlet, and the second end of the cable has a power supply interface located outside the housing.

10. The wind power generation equipment according to claim 1, characterized in that, The blade is strip-shaped, and the direction of extension of the blade is parallel to the axis of rotation of the blade.

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