An intelligent microgrid wind turbine generator set

Abstract

An intelligent microgrid wind turbine generator set, characterized in that it comprises a generator set housing and a methanol range extender arranged in the generator set housing, a lithium iron phosphate battery, an all-in-one wind turbine electronics control host, a drive motor, a reduction gearbox, a vertical gearbox, and a semi-direct medium-speed permanent magnet wind turbine generator; the methanol range extender, the lithium iron phosphate battery, the drive motor, and the all-in-one wind turbine electronics control host are controlled by this all-in-one wind turbine electronics control host; the drive motor is connected to the reduction gearbox; the reduction gearbox is connected to the vertical gearbox via the main shaft of the wind power transmission;The vertical gearbox is connected via a transmission link to the semi-direct medium-speed permanent magnet wind turbine generator, and the semi-direct medium-speed permanent magnet wind turbine generator is connected to the main control unit of the wind turbine; the main control unit of the wind turbine transmits power via the converter and transformer to the microgrid control unit and then transmits it via the microgrid control unit to the user end; the transformer supplies power to the all-in-one wind turbine electronic control host for controlling the wind turbine from a wind power source.

Description

Technical area

[0001] The utility model relates to the technical field of electricity generation and in particular to an intelligent microgrid wind turbine generator set. Background technology

[0002] Wind turbines worldwide are devices that convert wind energy into electrical energy and are widely used in the renewable energy sector. Depending on their design, structure, and application, the following are the main classification methods and corresponding types of wind turbines: 1. Classification by number of sheets: (1) Single-blade wind turbine: This type of wind turbine has only one blade and is usually used in small or experimental projects. (2) Double-blade wind turbine: This is the most widespread type and is frequently used in commercial and private projects. (3) Three-bladed wind turbine: Although this design offers better balance and lower noise levels, it is associated with higher costs. 2. Classification according to the direction of the rotation axis of the wind turbine: (1) Horizontal axis wind turbine (HAWT): This is the most common type, in which the axis of rotation is parallel to the ground, and most commercial wind turbines fall into this category. (2) Vertical axis wind turbine (VAWT): The axis of rotation of this wind turbine is perpendicular to the ground, which is suitable for urban environments or areas with limited space. 3. Classification by wind turbine size: (1) Small wind turbines: are usually used for private or small commercial projects and have a power output ranging from a few hundred watts to a few kilowatts. (2) Medium-sized wind turbines: Suitable for medium-sized projects such as farms or small communities with a capacity ranging from a few kilowatts to several hundred kilowatts. (3) Large wind turbines: are used in large commercial projects such as wind farms and have a power output of several hundred kilowatts up to several tens of megawatts. 4. Classification according to the installation method of wind turbines: (1) Ground-mounted wind turbines: This is the most common installation method, where the wind turbine is installed directly on the ground. (2) Tower-mounted wind turbines: Wind turbines are installed on tall towers to achieve better wind speeds and higher power generation efficiency. (3) Floating wind turbines: This type of wind power plant is installed at sea, is suitable for deep waters and can utilize more stable wind resources. 5. Classification according to the control technology of wind turbines: (1) Fixed speed wind turbine: This type of wind turbine has a fixed speed and is suitable for simple application scenarios. (2) Variable speed wind turbine: In this type of wind turbine, the speed can be adjusted to changes in wind speed in order to improve the efficiency of electricity generation and reduce wear. 6. Classification according to grid-connected wind turbines: (1) Independently operated wind turbines: These wind turbines are not connected to the electricity grid and are usually used in remote areas or as emergency power sources. (2) Grid-connected wind turbine: This type of wind turbine is connected to the electricity grid and can feed the generated electricity into the grid. (3) The design and selection of wind turbines depends on numerous factors, including geographical location, wind speed, space constraints, costs and environmental impacts.

[0003] The common characteristics of the aforementioned wind turbines are that they require a certain wind speed to generate wind energy, occupy a large land / sea area, are impractical to transport, have a lengthy permitting process, high foundation construction costs, simple functions, high maintenance and installation costs, have a significant impact on the natural environment, and the income generated from wind energy is not high. Therefore, the development of a wind turbine generator set that can solve the aforementioned problems is a challenge that urgently requires the expertise of technical personnel in related fields. Content of the utility model

[0004] To solve the aforementioned technical problems, the utility model offers the following technical solution: an intelligent microgrid wind turbine generator set comprising a generator set housing and a methanol range extender located within the generator set housing, a lithium iron phosphate battery, an all-in-one wind turbine electronic control host, a drive motor, a reduction gearbox, a vertical gearbox, and a semi-direct medium-speed permanent magnet wind turbine generator. The methanol range extender, the lithium iron phosphate battery, the drive motor, and the all-in-one wind turbine electronic control host are controlled by this all-in-one wind turbine electronic control host. The drive motor is connected to the reduction gearbox. The reduction gearbox is connected to the vertical gearbox via the main shaft of the wind power transmission.The vertical gearbox is connected via a transmission link to the semi-direct medium-speed permanent magnet wind turbine generator, and the semi-direct medium-speed permanent magnet wind turbine generator is connected to the main wind turbine controller. The main wind turbine controller transmits power via the converter and transformer to the microgrid controller, and then via the microgrid controller to the user end. The transformer supplies power to the all-in-one wind turbine electronics control host for controlling the wind turbine from a wind power source.

[0005] Preferably, the generator set housing is divided from bottom to top into a single-layer frame, a double-layer frame, and a triple-layer frame. The methanol range extender, the lithium iron phosphate battery, the all-in-one wind turbine electronics control host, the transformer, and the microgrid controller are arranged in a single-layer frame. The number of methanol range extenders, lithium iron phosphate batteries, and all-in-one wind turbine electronics control hosts is one or more groups.

[0006] Preferably, a gearbox mounting bracket is arranged in the center of the two-layer frame, and the vertical gearbox is mounted within this bracket. The gearbox mounting bracket is equipped with the turntable internal tooth wind turbine base, which can rotate around the mounting bracket. A reduction gearbox is located at the contact point between the outer edge of the turntable internal tooth wind turbine base and the two-layer frame. The upper input end of the vertical gearbox is connected to the main shaft of the wind power transmission, and the output end of the vertical gearbox is connected to the semi-direct, medium-speed permanent magnet wind turbine generator.

[0007] Preferably, the input end of the reduction gear is connected to the drive motor. The housing at the other end of the reduction gear is rotatably connected to the two-layer frame via a four-point contact ball bearing 1.

[0008] Preferably, the underside of the main shaft of the wind power transmission is connected to the gearbox mounting bracket via a four-point contact ball bearing 2.

[0009] Preferably, a converter and a main control unit of the wind turbine are arranged at the base of the rotary disc internal tooth wind turbine base.

[0010] Preferably, the main shaft of the wind power transmission protrudes into the three-layer frame and is connected to the wind turbine blades.

[0011] The advantages of the utility model compared to the prior art are: The utility model uses an intelligent and efficient methanol range extender, a lithium iron phosphate battery, an all-in-one wind turbine electronic control host, a drive motor, a reduction gearbox, a vertical gearbox and a semi-direct medium-speed permanent magnet wind turbine generator, a vertical gearbox and a semi-direct medium-speed permanent magnet wind turbine generator, a methanol range extender, a lithium iron phosphate battery, an all-in-one electronic control, a drive motor, a reduction gearbox, a four-point contact ball bearing with rotary disc internal tooth wind turbines, a main gearbox shaft, a vertical gearbox, a medium-speed permanent magnet wind turbine, and a main control unit of the wind turbine to form a high-voltage structure.It can achieve high torque, a low speed ratio, and high power. Description with drawings Fig. This is the framework diagram of the intelligent microgrid wind turbine generator set of the utility model. Fig. is a schematic representation of a structural layer of the intelligent microgrid wind turbine generator set of the utility model. Fig. is a schematic cross-sectional representation of a layer frame 1-1 of the intelligent microgrid wind turbine generator set of the utility model. Fig. is a schematic cross-sectional representation of a layer frame 2-2 of the intelligent microgrid wind turbine generator set of the utility model. Fig. is a schematic representation of the structure of a two-layer frame of the intelligent microgrid wind turbine generator set of the utility model. Fig. is a schematic cross-sectional representation of a two-layer frame 3-3 of the intelligent microgrid wind turbine generator set of the utility model. Fig. is a schematic cross-sectional representation of a two-layer frame 4-4 of the intelligent microgrid wind turbine generator set of the utility model. Fig. Figure 1 is a schematic representation of the installation of a four-point contact ball bearing 1 and a four-point contact ball bearing 2 of the intelligent microgrid wind turbine generator set of the utility model. Fig. is a schematic diagram of a three-layer frame of the intelligent microgrid wind turbine generator set of the utility model. Fig. is an external schematic diagram of a semi-direct driven permanent magnet medium-speed wind generator of the intelligent microgrid wind turbine generator set of the utility model. The specific embodiment

[0012] To clarify the purpose, technical solutions, and advantages of the embodiments of the utility model, the technical solutions in these embodiments are described clearly and completely below in conjunction with the drawings. It is evident that the description of the embodiments is part of the embodiments of the utility model and not of all embodiments. The components of the embodiments of the utility model described herein in general terms and illustrated in the figures can be arranged and designed in a multitude of different configurations.

[0013] In describing the embodiments of the present invention, it should be noted that if the orientation or positional relationship indicated by the terms "centered," "top," "bottom," "left," "right," "vertical," "horizontal," "inside," "outside," and the like is based on the orientation or positional relationship shown in the accompanying drawing or on the orientation or positional relationship that is typically used during the application of the utility model product, this is done solely for the convenience and simplification of the description of the utility model and does not indicate or imply that the device or element referred to must have a specific orientation. It is designed and operated in a particular orientation and therefore cannot be interpreted as a limitation of the utility model. Furthermore, the terms "first," "second," "third," etc., are used in this context.They are used only to distinguish descriptions and should not be interpreted as indicating or implying any relative meaning.

[0014] Furthermore, the presence of terms like "horizontal," "vertical," "overhanging," etc., does not mean that the component must be perfectly horizontal or overhanging, but may be slightly inclined. "Horizontal," for example, simply means that the orientation is more horizontal than "vertical." It does not mean that the structure must be completely horizontal; it may, however, be slightly inclined.

[0015] In the description of the embodiments of the utility model, "plural" means at least two.

[0016] When describing the embodiments of the utility model, it should also be noted that the terms "adjustment," "installation," "connecting," and "connecting" are to be understood in a broad sense unless otherwise clearly specified and limited. For example, they may refer to a permanent connection, a detachable connection, or an integral connection. They may be mechanical or electrical connections. They may be direct connections, intermediaries, or internal connections between two components. The specific meanings of the aforementioned terms in the utility model are understandable to the person skilled in the art, depending on the specific circumstances. embodiment

[0017] An intelligent microgrid wind turbine generator set, characterized in that it comprises a generator set housing 1 and a methanol range extender 2 arranged in the generator set housing 1, a lithium iron phosphate battery 3, an all-in-one wind turbine electronic control host 4, a drive motor 5, a reduction gear 6, a vertical gearbox 7 and a semi-direct medium-speed permanent magnet wind turbine generator 8.

[0018] The methanol range extender 2, the lithium iron phosphate battery 3, the drive motor 5, and the all-in-one wind turbine electronics control host 4 are controlled by this all-in-one wind turbine electronics control host 4. The drive motor 5 is connected to the reduction gearbox 6. The reduction gearbox 6 is connected to the vertical gearbox 7 via the main shaft 9 of the wind power transmission. The vertical gearbox 7 is connected via a transmission link to the semi-direct medium-speed permanent magnet wind turbine generator 8, and the semi-direct medium-speed permanent magnet wind turbine generator 8 is connected to the main controller of the wind turbine 10. The main controller of the wind turbine 10 transmits power via the converter 11 and the transformer 12 to the microgrid controller 13, and then transmits it via the microgrid controller 13 to the user end 14.The transformer 12 supplies the all-in-one wind turbine electronic control host 4 with electricity for controlling the wind turbine via a wind power source 15.

[0019] The generator set housing 1, from bottom to top, is divided into a single-layer frame 101, a double-layer frame 102, and a triple-layer frame 103. The methanol range extender 2, the lithium iron phosphate battery 3, the all-in-one wind turbine electronics control host 4, the transformer 12, and the microgrid controller 13 are arranged in a single-layer frame 101. The number of methanol range extenders 2, lithium iron phosphate batteries 3, and all-in-one wind turbine electronics control hosts 4 is one or more groups.

[0020] A gearbox mounting bracket 104 is arranged in the center of the two-layer frame 102, and the vertical gearbox 7 is arranged in the gearbox mounting bracket 104. The gearbox mounting bracket 104 is provided with the turntable internal tooth wind turbine base 105, which can rotate around the gearbox mounting bracket 104. A reduction gearbox 6 is arranged at the contact point between the outer edge of the turntable internal tooth wind turbine base 105 and the two-layer frame 102. The upper input end of the vertical gearbox 7 is connected to the main shaft of the wind power transmission 9, and the output end of the vertical gearbox 7 is connected to the semi-direct medium-speed permanent magnet wind turbine generator 8. The input end of the reduction gearbox 6 is connected to the drive motor 5.The housing at the other end of the reduction gearbox 6 is rotatably connected to the two-layer frame 102 via a four-point contact ball bearing 1 16. The underside of the main shaft of the wind power transmission 9 is connected to the gearbox mounting bracket 104 via a four-point contact ball bearing 2 17. A converter 12 and a main control unit 10 of the wind turbine are arranged at the base of the rotary internal gear wind turbine base 105.

[0021] The main shaft 9 of the wind power transmission extends into the three-layer frame 103 and is connected to the semi-direct medium-speed permanent magnet wind turbine generator 8.

[0022] The utility model uses an intelligent and efficient methanol range extender 2, a lithium iron phosphate battery 3, an all-in-one wind turbine electronic control host 4, a drive motor, a reduction gearbox, a four-point contact ball bearing with rotary disc internal tooth wind turbine, a main shaft 9 of the wind power transmission, a vertical gearbox 7, a semi-direct medium-speed permanent magnet wind turbine generator 8, and a main control unit 10 of the wind turbine to form a high-voltage structure. It can achieve high torque, a low speed ratio, and high power.

[0023] Among them is the drive motor, a 300kW-360kW motor. The reduction gearbox has a speed ratio of 10.32-13.9. The four-point contact ball bearings of the rotary disc internal gear wind turbine base are four-point contact ball bearings with diameters of 4m and 18m. The main shaft of the wind turbine gearbox has a diameter of 18m and is 11.6m high. The vertical gearbox has a power output of 3 MW to 38 MW.

[0024] The key to realizing the smart wind turbine is the production capacity for high-quality bearing steel. Each smart wind turbine base requires approximately 120 tons of steel, and each production line (1,000 sets) consumes 120,000 tons. The utility model introduces domestic high-end specialty steel companies (bearing steel) that produce specialty steel in a partnership model. The raw materials required for investing in green energy and producing the plants and equipment are supplied by the Bohe Wind Power Group, and the specialty steel companies are responsible for producing qualified high-end bearing steel, with income based on the company's existing profits (fixed profits).

[0025] The methanol range extender in this utility model is a product of the Geely Group. The lithium iron phosphate battery is a product of CATL. The all-in-one wind turbine electronic control host was developed by Huawei, BYD, and Huichuan Technology. The servo drive motor was developed. A 300kW-360kW reduction gearbox with a speed ratio of 10.32-13.9 was developed. Φ18m and Φ4m wind turbine bearings were introduced by Luoyang Bearing and Xinlianqiang Co., Ltd. The vertical gearbox was introduced by Nan Gao Chi and Chong Chi. The gearbox main shafts were introduced by Jinlei and Tongyu. The 25MW and 26MW semi-direct drive medium-speed permanent magnet wind turbines were introduced by Dongfang Electric, Xiangdian Group, and CRRC Electromechanical. The main control systems for the wind turbines were introduced by Goldwind Technology, CRRC Electromechanical Research Institute, Dongfang Electric Group and Sungrow Power Supply.The intelligent microgrid wind turbine generator set was introduced by the Xuji Group, ABB, GE, Tsinghua University, and Tianjin University. Throughout the entire supply chain, from high-quality bearing steel to the installation, commissioning, operation, and maintenance of wind turbines across their entire lifecycle, we provide clean energy to customers worldwide.

[0026] The utility model and its embodiments have been described above. This description is not limiting. What is shown in the drawings is only one embodiment of the utility model, and the actual structure is not limited to it. In short, if a person skilled in the art is inspired by it and, without deviating from the creative purpose of the utility model, can design a similar structural method and embodiment to the technical solution without any creative effort, they all fall under the protection of the utility model.

Claims

[1] A smart microgrid wind turbine generator set, characterized bythat it comprises a generator set housing and a methanol range extender arranged in the generator set housing, a lithium iron phosphate battery, an all-in-one wind turbine electronic control host, a drive motor, a reduction gear, a vertical gearbox, and a semi-direct medium-speed permanent magnet wind turbine generator; the methanol range extender, the lithium iron phosphate battery, the drive motor, and the all-in-one wind turbine electronic control host are controlled by this all-in-one wind turbine electronic control host; the drive motor is connected to the reduction gear; the reduction gear is connected to the vertical gearbox via the main shaft of the wind power transmission;The vertical gearbox is connected to the semi-direct medium-speed permanent magnet wind turbine generator via a transmission link, and the semi-direct 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 the converter and transformer, and then transmits it to the user end via the microgrid controller. The transformer supplies power to the all-in-one wind turbine electronic control host for controlling the wind turbine via a wind power source. [2] An intelligent microgrid wind turbine generator set according to claim 1, characterized bythat the generator set casing is divided into a single-layer frame, a two-layer frame, and a three-layer frame from bottom to top; the methanol range extender, the lithium iron phosphate battery, the all-in-one wind turbine electronic control host, the transformer, and the microgrid controller are arranged in a single-layer frame; the number of the methanol range extender, the lithium iron phosphate battery, and the all-in-one wind turbine electronic control host is one or more groups. [3] An intelligent microgrid wind turbine generator set according to claim 1, characterized bythat a gearbox mounting bracket is arranged in the middle of the two-layer frame, the vertical gearbox is arranged in the gearbox mounting bracket; the gearbox mounting bracket is provided with the rotating disc internal tooth wind turbine base, which can rotate around the gearbox mounting bracket; a reduction gear is arranged at the contact point between the outer edge of the rotating disc internal tooth wind turbine base and the two-layer frame; the upper input end of the vertical gearbox is connected to the main shaft of the wind power transmission, and the output end of the vertical gearbox is connected to the semi-direct medium-speed permanent magnet wind turbine generator. [4] An intelligent microgrid wind turbine generator set according to claim 1, characterized bythat the input end of the reduction gear is connected to the drive motor; the housing at the other end of the reduction gear is rotatably connected to the two-layer frame via a four-point contact ball bearing 1. [5] An intelligent microgrid wind turbine generator set according to claim 1, characterized by that the bottom of the main shaft of the wind power transmission is connected to the gearbox mounting bracket via a four-point contact ball bearing 2. [6] An intelligent microgrid wind turbine generator set according to claim 1, characterized by that an inverter and a main controller of the wind turbine are arranged at the base of the turntable internal tooth wind turbine base. [7] An intelligent microgrid wind turbine generator set according to claim 1, characterized by that the main shaft of the wind power transmission extends into the three-layer frame and is connected to the wind turbine blades.

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