Intelligent micro-grid wind generating set

Abstract

The utility model discloses an intelligent micro-grid wind generating set which comprises a generating set shell, and a methanol range extender, a lithium iron phosphate battery, an all-in-one fan electric control host, a driving motor, a speed reducer, a vertical gear box and a semi-direct-drive medium-speed permanent magnet wind driven generator which are arranged in the generating set shell, the methanol range extender, the lithium iron phosphate battery and the driving motor are connected with the all-in-one fan electric control host and controlled by the all-in-one fan electric control host, the driving motor is in transmission connection with the speed reducer, the speed reducer is in transmission connection with the vertical gear box through the wind power transmission main shaft, and the vertical gear box is in transmission connection with the semi-direct-drive medium-speed permanent magnet wind driven generator. The semi-direct-drive medium-speed permanent magnet wind driven generator is connected with the wind turbine generator main controller; according to the utility model, the efficient methanol range extender, the lithium iron phosphate battery, the all-in-one electric controller, the driving motor, the speed reducer, the vertical gear box, the semi-direct-drive medium-speed permanent magnet wind driven generator and the like are used for forming a high-voltage framework, so that the performances of large torque, low speed ratio and high power can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of power generation technology, specifically to a smart microgrid wind turbine generator set. Background Technology

[0002] Wind turbines, a type of equipment that converts wind energy into electrical energy, are widely used in the renewable energy sector. Based on differences in design, structure, and application scenarios, they can be mainly classified and categorized into the following types of wind power and wind turbines:

[0003] 1. Classification by number of leaves:

[0004] (1) Single-blade wind turbine: This type of wind turbine has only one blade and is usually used for small or experimental projects.

[0005] (2) Twin-blade wind turbine: This is the most common type and is widely used in commercial and residential projects.

[0006] (3) Three-bladed wind turbine: This design can provide better balance and lower noise levels, but it is expensive.

[0007] 2. Classification by the direction of the wind turbine's rotation axis:

[0008] (1) Horizontal axis wind turbine (HAWT): This is the most common type, with its rotating axis parallel to the ground. Most commercial wind turbines belong to this category.

[0009] (2) Vertical axis wind turbine (VAWT): This type of wind turbine has its rotation axis perpendicular to the ground, making it suitable for urban environments or areas with limited space.

[0010] 3. Classification by wind turbine size:

[0011] (1) Small wind turbines: typically used in residential or small commercial projects, with power ranging from hundreds of watts to thousands of watts.

[0012] (2) Medium-sized wind turbines: suitable for medium-sized projects, such as farms or small communities, with power ranging from several kilowatts to several hundred kilowatts.

[0013] (3) Large wind turbines: used in large commercial projects, such as wind power plants, with power ranging from hundreds of kilowatts to tens of megawatts.

[0014] 4. Classification by wind turbine installation method:

[0015] (1) Ground-mounted wind turbine: This is the most common installation method, where the wind turbine is installed directly on the ground.

[0016] (2) Tower-mounted wind turbines: Wind turbines are installed on high towers to obtain better wind speeds and higher power generation efficiency.

[0017] (3) Floating wind turbine: This type of wind turbine is installed at sea and is suitable for deep water areas, where it can utilize more stable wind resources.

[0018] 5. Classification by wind turbine control technology:

[0019] (1) Fixed-speed wind turbine: The rotation speed of this type of wind turbine is fixed, which is suitable for simple application scenarios.

[0020] (2) Variable speed wind turbine: This type of wind turbine can adjust its speed according to changes in wind speed in order to improve power generation efficiency and reduce wear.

[0021] 6. Classification by wind turbine grid connection method:

[0022] (1) Independent wind turbine: This type of wind turbine is not connected to the power grid and is usually used in remote areas or as a backup power source.

[0023] (2) Grid-connected wind turbine: This type of wind turbine is connected to the power grid and can transmit the generated electricity to the power grid.

[0024] (3) The design and selection of wind turbines depend on a variety of factors, including geographical location, wind speed, space constraints, cost and environmental impact.

[0025] All of the above-mentioned wind turbines share the common characteristic that they must have a certain wind speed to generate wind energy. They also have disadvantages such as occupying a large land / sea area, inconvenient transportation, long approval process, high base construction cost, simple function, high maintenance and installation cost, great influence from the natural environment, and low wind energy returns. Therefore, designing a wind turbine generator that can solve the above problems is an urgent problem for technical personnel in related fields. Utility Model Content

[0026] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a smart microgrid wind turbine generator set, including a generator set housing and a methanol range extender, a lithium iron phosphate battery, a multi-functional wind turbine control unit, a drive motor, a reducer, a vertical gearbox, and a semi-direct drive medium-speed permanent magnet wind turbine generator disposed within the generator set housing; the methanol range extender, the lithium iron phosphate battery, and the drive motor are connected to and controlled by the multi-functional wind turbine control unit; the drive motor is driven by the reducer; the reducer is driven by the vertical gearbox via the wind power transmission main shaft; the vertical gearbox is driven by the semi-direct drive medium-speed permanent magnet wind turbine generator; the semi-direct drive medium-speed permanent magnet wind turbine generator is connected to the wind turbine generator set main controller; the wind turbine generator set main controller transmits power to the microgrid controller via a converter and a transformer, and the microgrid controller transmits power to the user end; the transformer supplies power to the multi-functional wind turbine control unit via wind power.

[0027] Preferably, the generator set housing is divided into a single-layer frame, a double-layer frame, and a triple-layer frame from bottom to top. The methanol range extender, lithium iron phosphate battery, multi-functional wind turbine control unit, transformer, and microgrid controller are installed in the single-layer frame. The number of methanol range extenders, lithium iron phosphate batteries, and multi-functional wind turbine control units is one or more sets.

[0028] Preferably, a gearbox mounting bracket is provided at the center of the two-layer frame, the vertical gearbox is provided inside the gearbox mounting bracket, and a turntable internal gear wind turbine base that can rotate around the gearbox mounting bracket is provided around the gearbox mounting bracket. A reducer is provided at the contact point between the outer edge of the turntable internal gear wind turbine base and the two-layer frame. The top input end of the vertical gearbox is connected to the wind power transmission main shaft, and the output end of the vertical gearbox is connected to the semi-direct drive medium-speed permanent magnet wind turbine generator.

[0029] Preferably, the input end of the reducer is connected to the drive motor, and the outer casing of the other end of the reducer is rotatably connected to the second-layer frame through a four-point contact ball bearing.

[0030] Preferably, the bottom of the wind turbine drive shaft is connected to the gearbox mounting bracket via a four-point contact ball bearing.

[0031] Preferably, the base of the rotary internal gear wind turbine is also equipped with a converter and a main controller for the wind turbine unit.

[0032] Preferably, the wind power drive main shaft extends into the three-layer frame and is connected to a semi-direct drive medium-speed permanent magnet wind turbine.

[0033] The advantages of this utility model compared with the prior art are as follows: This utility model uses an intelligent and efficient methanol range extender, lithium iron phosphate battery, multi-in-one electronic control, drive motor, reducer, four-point contact ball turntable internal gear wind turbine bearing, transmission main shaft, vertical gearbox, semi-direct drive medium speed permanent magnet wind turbine generator, and wind turbine main controller to form a high-voltage structure, which can achieve high torque, low speed ratio and high power performance. Attached Figure Description

[0034] Figure 1 This is a frame diagram of a smart microgrid wind turbine generator set according to this utility model.

[0035] Figure 2 This is a schematic diagram of a single-layer structure in a smart microgrid wind turbine generator set according to this utility model.

[0036] Figure 3 This is a cross-sectional schematic diagram of the first-layer structure 1-1 in a smart microgrid wind turbine generator set according to this utility model.

[0037] Figure 4 This is a cross-sectional schematic diagram of the first-layer structure 2-2 in a smart microgrid wind turbine generator set according to this utility model.

[0038] Figure 5 This is a schematic diagram of the two-layer structure of a smart microgrid wind turbine generator set according to this utility model.

[0039] Figure 6 This is a cross-sectional schematic diagram of the two-layer structure 3-3 in a smart microgrid wind turbine generator set according to this utility model.

[0040] Figure 7 This is a cross-sectional schematic diagram of the two-layer structure 4-4 in a smart microgrid wind turbine generator set according to this utility model.

[0041] Figure 8 This is an installation diagram of a four-point contact ball bearing 1 and a four-point contact ball bearing 2 in a smart microgrid wind turbine generator set according to this utility model.

[0042] Figure 9 This is a schematic diagram of a three-layer structure in a smart microgrid wind turbine generator set according to this utility model.

[0043] Figure 10 This is an external schematic diagram of a semi-direct drive medium-speed permanent magnet wind turbine in a smart microgrid wind turbine generator set according to this utility model. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0047] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0048] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Example:

[0050] A smart microgrid wind turbine generator set includes a generator set housing 1 and a methanol range extender 2, a lithium iron phosphate battery 3, an all-in-one wind turbine control unit 4, a drive motor 5, a reducer 6, a vertical gearbox 7, and a semi-direct drive medium-speed permanent magnet wind turbine generator 8, all housed within the generator set housing 1.

[0051] The methanol range extender 2, lithium iron phosphate battery 3, drive motor 5, and multi-functional wind turbine control unit 4 are connected and controlled by the multi-functional wind turbine control unit 4. The drive motor 5 is connected to the reducer 6. The reducer 6 is connected to the vertical gearbox 7 through the wind power transmission main shaft 9. The vertical gearbox 7 is connected to the semi-direct drive medium-speed permanent magnet wind turbine generator 8. The semi-direct drive medium-speed permanent magnet wind turbine generator 8 is connected to the wind turbine main controller 10. The wind turbine main controller 10 transmits power to the microgrid controller 13 through the converter 11 and transformer 12. The microgrid controller 13 then transmits the power to the user end 14. The transformer 12 supplies power to the multi-functional wind turbine control unit 4 through the wind power supply 15.

[0052] The generator set housing 1 is divided into a single-layer frame 101, a second-layer frame 102, and a third-layer frame 103 from bottom to top. The methanol range extender 2, lithium iron phosphate battery 3, multi-functional wind turbine control unit 4, transformer 12, and microgrid controller 13 are installed in the single-layer frame 101. The methanol range extender 2, lithium iron phosphate battery 3, and multi-functional wind turbine control unit 4 are in one or more sets.

[0053] A gearbox mounting bracket 104 is centrally located on the two-layer frame 102. The vertical gearbox 7 is housed within the gearbox mounting bracket 104. A turntable internal gear wind turbine base 105, rotatable around the gearbox mounting bracket 104, is arranged around the gearbox mounting bracket 104. A reducer 6 is installed at the contact point between the outer edge of the turntable internal gear wind turbine base 105 and the two-layer frame 102. The top input end of the vertical gearbox 7 is connected to the wind turbine drive main shaft 9, and the output end of the vertical gearbox 7 is connected to the semi-direct drive medium-speed permanent magnet wind turbine generator 8. The input end of the reducer 6 is connected to the drive motor 5, and the other end of the reducer 6 is rotatably connected to the two-layer frame 102 via a four-point contact ball bearing 16. The bottom of the wind turbine drive main shaft 9 is connected to the gearbox mounting bracket 104 via a four-point contact ball bearing 17. A transformer 12 and a wind turbine main controller 10 are also installed on the turntable internal gear wind turbine base 105.

[0054] The wind power drive main shaft 9 extends into the three-layer frame 103 and is connected to the semi-direct drive medium-speed permanent magnet wind turbine 8.

[0055] This utility model uses an intelligent and efficient methanol range extender, a lithium iron phosphate battery 3, an all-in-one wind turbine electrical control unit 4, a drive motor, a reducer, a four-point contact ball turntable internal gear wind turbine bearing, a wind turbine transmission main shaft 9, a vertical gearbox 7, a semi-direct drive medium-speed permanent magnet wind turbine generator 8, and a wind turbine main controller 10 to form a high-voltage structure; it can achieve high torque, low speed ratio, and high power performance.

[0056] The drive motor is a 300KW-360KW drive motor; the reducer is a reducer with a speed ratio of 10.32-13.9; the four-point contact ball turntable internal gear wind turbine base bearing is selected from Φ4m and Φ18m four-point contact ball turntable internal gear wind turbine base bearing; the wind turbine drive main shaft is selected from Φ18m wind turbine drive main shaft with a height of 11.6m; the vertical gearbox is selected from 3MW-38MW vertical gearbox;

[0057] The key to realizing intelligent wind power generation units is the production capacity of high-end bearing steel. Each intelligent wind power generation base bearing requires approximately 120 tons, and each production line (1000 sets) uses 120,000 tons of steel. This utility model introduces domestic high-end (bearing steel) special steel enterprises and uses a partnership model to produce special steel. The investment in factory buildings, equipment, green electricity, and raw materials required for production are supplied by Bohe Wind Power Group. The special steel enterprise is responsible for producing qualified high-end bearing steel and receives its income based on the enterprise's existing profit (fixed profit).

[0058] This utility model incorporates products from Geely Group for its methanol range extender; CATL for its lithium iron phosphate batteries; Huawei, BYD, and Inovance Technology for its all-in-one electronic control system; servo drive motors; 300KW-360KW speed ratio reducers with speed ratios of 10.32-13.9; Φ18m and Φ4m wind turbine bearings from Luoyang Bearing and Xinlianqiang Shares; vertical gearboxes from Nanjing High Speed ​​Gear and Chongqing Gear; transmission main shafts from Jinlei and Tongyu; 25MW and 26MW semi-direct drive medium-speed permanent magnet wind turbines from Dongfang Electric, Xiangtan Electric Group, and CRRC Electromechanical; wind turbine main controllers from Goldwind Technology, CRRC Electromechanical Research Institute, Dongfang Electric Group, and Sungrow Power; and intelligent wind power microgrids from XJ Group, ABB, GE, Tsinghua University, and Tianjin University. Through the entire industry chain, from high-end bearing steel to the installation, commissioning, operation, and maintenance of wind turbine generators, it provides clean energy to global customers throughout the entire lifecycle.

[0059] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A smart microgrid wind turbine generator set, characterized in that, Includes generator set housing and methanol range extender, lithium iron phosphate battery, multi-in-one wind turbine control unit, drive motor, reducer, vertical gearbox and semi-direct drive medium speed permanent magnet wind turbine generator housed in the generator set housing; The methanol range extender, lithium iron phosphate battery, drive motor, and multi-functional wind turbine control unit are connected and controlled by the multi-functional wind turbine control unit. The drive motor is connected to the reducer, and the reducer is connected to the vertical gearbox via the wind turbine drive shaft. The vertical gearbox is connected to the semi-direct drive medium-speed permanent magnet wind turbine generator. The semi-direct drive medium-speed permanent magnet wind turbine generator is connected to the wind turbine main controller. The wind turbine main controller transmits power to the microgrid controller via a converter and transformer, and the microgrid controller transmits the power to the user end. The transformer supplies power to the multi-functional wind turbine control unit via wind power.

2. The intelligent microgrid wind turbine generator set according to claim 1, characterized in that, The generator set casing is divided into a single-layer frame, a double-layer frame, and a triple-layer frame from bottom to top. The methanol range extender, lithium iron phosphate battery, multi-functional wind turbine control unit, transformer, and microgrid controller are installed in the single-layer frame. The number of methanol range extenders, lithium iron phosphate batteries, and multi-functional wind turbine control units is one or more sets.

3. The intelligent microgrid wind turbine generator set according to claim 2, characterized in that, A gearbox mounting bracket is set at the center of the two-layer structure. The vertical gearbox is set inside the gearbox mounting bracket. A turntable internal gear wind turbine base that can rotate around the gearbox mounting bracket is set around the gearbox mounting bracket. A reducer is set at the contact point between the outer edge of the turntable internal gear wind turbine base and the two-layer structure. The top input end of the vertical gearbox is connected to the wind power transmission main shaft, and the output end of the vertical gearbox is connected to the semi-direct drive medium-speed permanent magnet wind turbine generator.

4. The intelligent microgrid wind turbine generator set according to claim 1, characterized in that, The input end of the reducer is connected to the drive motor, and the outer casing of the other end of the reducer is rotatably connected to the second-layer frame through a four-point contact ball bearing.

5. A smart microgrid wind turbine generator set according to claim 1, characterized in that, The bottom of the wind turbine drive shaft is connected to the gearbox mounting bracket via a four-point contact ball bearing.

6. A smart microgrid wind turbine generator set according to claim 3, characterized in that, The base of the internal gear wind turbine on the turntable is also equipped with a converter and a main controller for the wind turbine unit.

7. A smart microgrid wind turbine generator set according to claim 1, characterized in that, The wind turbine drive shaft extends into the three-layer frame and connects to the wind turbine blades.

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