Wind power plant power prediction device

Abstract

The invention relates to the technical field of wind power, in particular to a wind power plant power prediction device which comprises a stand column and a wind power monitoring unit rotationally installed on the stand column, the wind power monitoring unit is of a fusiform structure, and a wind power sensing area is arranged in the middle of the wind power monitoring unit. Narrow and long wind guide heads with gradually sharp tail ends are symmetrically distributed at the two ends of the wind power induction area, a column sleeve is arranged in the center of the wind power induction area and arranged on the outer side of the stand column in a sleeving mode, the circumferential inner wall of the column sleeve does not make contact with the circumferential outer wall of the stand column, and the column sleeve is fixedly connected with the wind guide heads through connecting plates; the upper side wall and the lower side wall of the wind power sensing area are rotationally installed on the stand column through a bearing unit respectively. The wind power plant power prediction device provided by the invention is simpler, more convenient and more efficient to install and maintain.

Description

Technical Field

[0001] The invention relates to the technical field of wind power, and in particular to a wind farm power prediction device. Background Art

[0002] As a clean and renewable energy form, the development and application of wind power generation has received widespread attention. In the construction and operation of wind farms, wind power prediction is a crucial technology, which has a far-reaching impact on the stable operation of the power grid, the economic benefits of wind farms and the sustainable use of energy.

[0003] However, to achieve accurate wind farm power forecasting, it is first necessary to obtain long-term and stable wind force and wind direction data. These data are the basis of wind power forecasting models and the key to evaluating and optimizing wind farm performance. At present, in practical applications, there is a lack of a device that can monitor and record wind force and wind direction in a specific area in a long-term and stable manner, which restricts the development and application of wind power forecasting technology. Traditional wind force and wind direction monitoring devices, such as mechanical anemometers, can meet basic monitoring needs to a certain extent, but they have many shortcomings. For example, mechanical devices are easily affected by environmental factors. Harsh environments such as sand, dust, and salt spray may cause wear and failure of mechanical components, thereby affecting the accuracy and stability of monitoring data. In addition, the installation and maintenance costs of mechanical devices are high, and regular calibration and maintenance are required, which is a considerable challenge for long-term and stable monitoring work.

[0004] In recent years, ultrasonic anemometers have gradually emerged as a new type of monitoring equipment. Ultrasonic devices use non-contact measurement technology to measure wind speed and direction by transmitting and receiving ultrasonic signals, avoiding the mechanical wear and fatigue problems of traditional mechanical devices. At the same time, ultrasonic devices have the advantages of high precision, high stability, rapid response and strong anti-interference ability. They can operate stably for a long time in harsh environments, providing more reliable data support for wind power forecasting. Although ultrasonic anemometers have many advantages, they are relatively expensive and require a lot of maintenance, resulting in high overall use costs. In addition, it is difficult for ultrasonic anemometers to obtain long-term and stable wind force and direction data in a changing wind field environment.

[0005] Therefore, there is an urgent need for a wind farm power prediction device that is simpler, more efficient to install and maintain. Summary of the invention

[0006] The purpose of the present invention is to provide a wind farm power prediction device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A wind farm power prediction device comprises a column and a wind monitoring unit, wherein the wind monitoring unit is rotatably mounted on the column, the wind monitoring unit has a shuttle-shaped structure, a wind sensing area is arranged in the middle of the wind monitoring unit, narrow and long wind guide heads with tapered ends are symmetrically distributed at both ends of the wind sensing area, a column sleeve is arranged at the center of the wind sensing area, the column sleeve is arranged on the outside of the column, and the circumferential inner wall of the column sleeve does not contact the circumferential outer wall of the column, the column sleeve and the wind guide head are fixedly connected by a connecting plate, and the upper side wall and the lower side wall of the wind sensing area are rotatably mounted on the column by a bearing unit respectively; the interior of the wind sensing area is a sealed space, the left and right side walls of the wind sensing area are made of flexible material, a gas pressure sensor, a main board, and a battery are arranged in the wind sensing area, a data storage module is arranged in the main board, the gas pressure sensor transmits a numerical air pressure signal inside the wind sensing area to the main board, and the battery supplies power to the gas pressure sensor and the main board.

[0009] Furthermore, the surface of the wind guide is covered with a solar photovoltaic panel, an inverter is provided inside the wind sensing area, and the electric energy converted by the solar photovoltaic panel is stored in a battery through the inverter.

[0010] Furthermore, a wireless communication module is provided in the main board, and the wireless communication module is used to transmit the air pressure numerical signal recorded by the gas pressure sensor to the control center.

[0011] Furthermore, the bearing unit includes a fixed plate, an intermediate plate and a contact plate, the fixed plate is used to be fixedly locked on the column, the intermediate plate is provided with an upper bearing sleeve, the contact plate is provided with a lower bearing sleeve, a radial thrust bearing is installed between the upper bearing sleeve and the lower bearing sleeve, and the contact plate is fixedly connected to the upper side wall or the lower side wall of the wind sensing area.

[0012] Furthermore, the fixed disk is provided with adjusting screw sleeves and screw through holes in a circular array, and the intermediate disk is also provided with adjusting screw sleeves at positions corresponding to the fixed disk, a forward and reverse bidirectional adjusting screw is threadedly connected between the adjusting screw sleeve of the intermediate disk and the adjusting screw sleeve of the fixed disk, a wrench position is provided in the middle of the forward and reverse bidirectional adjusting screw, and a locking screw sleeve is also provided on the intermediate disk, a locking screw is passed through the screw through hole, and the end of the locking screw is threadedly connected to the locking screw sleeve.

[0013] Furthermore, the screw rod perforation is a waist-shaped structure.

[0014] Furthermore, a disc sleeve is provided on the fixed disc, and lateral screw sleeves are distributed in a ring array on the disc sleeve. Lateral mounting screws are threadedly connected in the lateral screw sleeves, and the lateral mounting screws are used to fix the disc sleeve on the column.

[0015] Furthermore, the column is a hollow structure, and both ends of the column are sealed.

[0016] Furthermore, two or more inclined ropes are provided between the upright column and the inner part, and the inclined ropes will not interfere with the wind monitoring unit.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention adopts a gas pressure sensor to monitor the air pressure changes inside the wind sensing area, thereby avoiding the mechanical wear and failure problems of traditional mechanical devices caused by environmental factors, thereby improving the accuracy and stability of the monitoring data; the wind monitoring unit is rotatably installed on the column through a bearing unit, so that the wind monitoring unit can rotate with the wind direction, thereby more accurately capturing the changes in wind force; when the airflow passes through, the narrow and long shuttle structure of the wind guide head enables it to always maintain the downwind direction, so that the wind monitoring unit can achieve accurate measurement of the wind force; the non-contact measurement method does not require complex mechanical components, and the installation and maintenance costs are relatively low.

[0019] 2. When the present invention is working, when the wind acts on the wind monitoring unit, the bearing unit allows the wind sensing area to rotate to a certain extent relative to the column to adapt to the change of wind direction. At the same time, the radial thrust bearing inside the bearing unit can withstand the axial and radial loads generated by the wind to ensure the stable operation of the wind monitoring unit. Through the design of the adjustment and locking mechanism, it can be ensured that the bearing unit has sufficient stability and accuracy after installation, thereby meeting the accuracy and reliability requirements of the wind farm power prediction device for wind monitoring.

[0020] 3. The present invention forms a completely self-sufficient energy supply system through the coordinated work of solar photovoltaic panels, inverters and batteries. It does not require the access of external power lines, improves the flexibility and reliability of the system, reduces dependence on traditional power grids, and reduces the difficulty of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a wind farm power prediction device;

[0022] Figure 2 It is a structural schematic diagram of a wind monitoring unit;

[0023] Figure 3 Schematic diagram of the structure of the wind farm power prediction device after configuring solar photovoltaic panels;

[0024] Figure 4 Schematic diagram of the structure of the wind farm power prediction device after configuring solar photovoltaic panels;

[0025] Figure 5It is a partial structural diagram of the wind monitoring unit and the column;

[0026] Figure 6 It is a schematic diagram of the structure of the wind monitoring unit and the bearing unit;

[0027] Figure 7 It is a schematic diagram of the structural decomposition of the bearing unit;

[0028] Figure 8 It is a schematic diagram of the structure of the intermediate disk and the fixed disk;

[0029] Fig. 9 It is a structural schematic diagram of a fixed disk;

[0030] Fig.10 It is a schematic diagram of the structure of the positive and negative thread bidirectional adjustment screw.

[0031] In the figure: 1. column; 2. wind monitoring unit; 3. wind sensing area; 4. column sleeve; 5. wind guide head; 6. solar photovoltaic panel; 7. connecting plate; 8. gas pressure sensor; 9. main board; 10. battery; 11. inverter; 12. bearing unit; 13. contact plate; 14. lower bearing sleeve; 15. radial thrust bearing; 16. upper bearing sleeve; 17. middle plate; 18. fixed plate; 19. plate sleeve; 20. locking screw sleeve; 21. screw perforation; 22. locking screw; 23. adjusting screw sleeve; 24. forward and reverse two-way adjusting screw; 25. wrench position; 26. lateral screw sleeve; 27. lateral mounting screw. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1 to 6The wind farm power prediction device comprises a column 1 and a wind monitoring unit 2. The wind monitoring unit 2 is rotatably mounted on the column 1. The wind monitoring unit 2 is a shuttle-shaped structure. A wind sensing area 3 is arranged in the middle of the wind monitoring unit 2. Narrow and long wind guide heads 5 with gradually pointed ends are symmetrically distributed at both ends of the wind sensing area 3. A column sleeve 4 is arranged at the center of the wind sensing area 3. The column sleeve 4 is sleeved on the outside of the column 1 and the circumferential inner wall of the column sleeve 4 does not contact the circumferential outer wall of the column 1. The column sleeve 4 and the wind guide head 5 are connected by The plate 7 is fixedly connected, and the upper side wall and the lower side wall of the wind sensing area 3 are rotatably mounted on the column 1 through a bearing unit 12 respectively; the interior of the wind sensing area 3 is a sealed space, and the left and right side walls of the wind sensing area 3 are made of flexible material. A gas pressure sensor 8, a main board 9, and a battery 10 are arranged inside the wind sensing area 3. The main board 9 is provided with a data storage module. The gas pressure sensor 8 transmits a numerical air pressure signal inside the wind sensing area 3 to the main board 9, and the battery 10 supplies power to the gas pressure sensor 8 and the main board 9.

[0034] A wireless communication module is provided in the main board 9, and the wireless communication module is used to transmit the air pressure numerical signal recorded by the gas pressure sensor 8 to the control center.

[0035] The column 1 is a hollow structure, and both ends of the column 1 are sealed.

[0036] Two or more inclined ropes are arranged between the column 1 and the inside, and the inclined ropes will not interfere with the wind monitoring unit 2.

[0037] Working principle of this embodiment:

[0038] The working principle of the wind farm power prediction device is based on the monitoring of the air pressure change inside the wind sensing area 3 by the gas pressure sensor 8. When the wind in the external environment acts on the wind guide head 5, due to the narrow and long end taper design of the wind guide head 5, the wind change can be more effectively captured and converted into the pressure change of the wind sensing area 3. The wind monitoring unit 2 is rotatably mounted on the column 1 through the bearing unit 12, so that the wind monitoring unit 2 can rotate with the wind direction, so as to more accurately capture the change of wind force; when the airflow passes through, the narrow and long shuttle structure of the wind guide head 5 enables it to always maintain the downwind direction, so that the wind monitoring unit 2 can achieve accurate measurement of the wind force. The interior of the wind sensing area 3 is a sealed space, and its left and right side walls are made of flexible materials. Therefore, when the external wind changes, the air pressure inside the wind sensing area 3 will also change accordingly. The gas pressure sensor 8 monitors the air pressure value inside the wind sensing area 3 in real time and transmits this signal to the main board 9. The main board 9 is provided with a data storage module for storing the air pressure value signal transmitted by the gas pressure sensor 8. In addition, the main board 9 is also provided with a wireless communication module, which can transmit the stored air pressure numerical signal to the control center by wireless means, thereby realizing remote monitoring and recording of the wind power of the wind farm. The battery 10 provides power support for the gas pressure sensor 8 and the main board 9 to ensure the continuous operation of the entire monitoring system.

[0039] This embodiment uses a gas pressure sensor 8 to monitor the air pressure changes inside the wind sensing area 3, avoiding mechanical wear and failure problems caused by environmental factors in traditional mechanical devices, thereby improving the accuracy and stability of monitoring data; the non-contact measurement method does not require complex mechanical components, so the installation and maintenance costs are relatively low.

[0040] Example 2: Please refer to Figures 7-10 , a wind farm power prediction device, which differs from Example 1 in that the bearing unit 12 includes a fixed plate 18, an intermediate plate 17 and a contact plate 13, the fixed plate 18 is used to be fixedly locked on the column 1, the intermediate plate 17 is provided with an upper bearing sleeve 16, the contact plate 13 is provided with a lower bearing sleeve 14, a radial thrust bearing 15 is installed between the upper bearing sleeve 16 and the lower bearing sleeve 14, and the contact plate 13 is fixedly connected to the upper side wall or the lower side wall of the wind sensing area 3.

[0041] An adjusting screw sleeve 23 and a screw through hole 21 are distributed in a circular array on the fixed disk 18, and an adjusting screw sleeve 23 is also provided at a position corresponding to the intermediate disk 17 and the fixed disk 18. A forward and reverse bidirectional adjusting screw 24 is threadedly connected between the adjusting screw sleeve 23 of the intermediate disk 17 and the adjusting screw sleeve 23 of the fixed disk 18, and a wrench position 25 is provided in the middle of the forward and reverse bidirectional adjusting screw 24. A locking screw sleeve 20 is also provided on the intermediate disk 17, and a locking screw 22 is passed through the screw through hole 21, and the end of the locking screw 22 is threadedly connected to the locking screw sleeve 20.

[0042] The screw rod through hole 21 is a waist-shaped structure.

[0043] A disc sleeve 19 is provided on the fixed disc 18 , and lateral screw sleeves 26 are distributed in a ring array on the disc sleeve 19 . Lateral mounting screws 27 are threadedly connected in the lateral screw sleeves 26 . The lateral mounting screws 27 are used to fix the disc sleeve 19 on the column 1 .

[0044] In this embodiment, the bearing unit 12 is composed of a fixed plate 18, an intermediate plate 17 and a contact plate 13. First, the upper bearing sleeve 16 is installed on the intermediate plate 17, and the lower bearing sleeve 14 is installed on the contact plate 13. Then, with the help of the radial thrust bearing 15, the upper bearing sleeve 16 and the lower bearing sleeve 14 are combined together to form a complete bearing structure.

[0045] Both the fixed plate 18 and the intermediate plate 17 are provided with an adjusting screw sleeve 23. By passing the positive and negative thread bidirectional adjusting screw 24 through the two adjusting screw sleeves 23 and rotating the wrench position 25, the intermediate plate 17 can be moved up and down relative to the fixed plate 18. This design allows the bearing unit 12 to be precisely adjusted in the vertical position to meet the needs of different installation scenarios. After the adjustment is completed, the locking screw 22 is used to pass through the screw through hole 21 on the fixed plate 18 and threaded into the locking screw sleeve 20 on the intermediate plate 17. In this way, the locking screw 22 tightly locks the fixed plate 18 and the intermediate plate 17 together to ensure the stability and safety of the bearing unit 12.

[0046] The screw rod perforation 21 adopts a waist-shaped structure, and this design allows a certain lateral adjustment space for the locking screw rod 22 during installation, which is very important for ensuring that the locking screw rod 22 can accurately pass through the locking screw rod sleeve 20 and apply enough locking force.

[0047] The fixed plate 18 is provided with a plate sleeve 19, and the plate sleeve 19 is provided with lateral screw sleeves 26 in an annular array. The plate sleeve 19 and the bearing unit 12 connected thereto can be fixedly mounted on the column 1 by passing the lateral mounting screw 27 through the lateral screw sleeve 26. This design provides a flexible installation method, allowing the horizontal position to be adjusted according to the site conditions.

[0048] During operation, when wind acts on the wind monitoring unit 2, the bearing unit 12 allows the wind sensing area 3 to rotate to a certain extent relative to the column 1 to adapt to changes in wind direction. At the same time, the radial thrust bearing 15 inside the bearing unit 12 can withstand the axial and radial loads generated by the wind to ensure the stable operation of the wind monitoring unit 2. Through the design of the adjustment and locking mechanism, it can be ensured that the bearing unit 12 has sufficient stability and accuracy after installation, thereby meeting the accuracy and reliability requirements of the wind farm power prediction device for wind monitoring.

[0049] Example 3: Please refer to Figures 3-4 The wind farm power prediction device is different from Example 1 in that the surface of the wind guide head 5 is covered with a solar photovoltaic panel 6, an inverter 11 is provided inside the wind sensing area 3, and the electric energy converted by the solar photovoltaic panel 6 is stored in the battery 10 through the inverter 11.

[0050] In this embodiment, the surface of the wind head 5 is covered with a solar photovoltaic panel 6, and the entire device can collect solar energy autonomously without the need for an external power supply connection. When sunlight shines on the photovoltaic panel, the photovoltaic cell immediately starts working and efficiently converts light energy into DC power. This process is completely independent and does not require the access of any external power lines. The converted DC power is directly transmitted to the inverter 11 set inside the wind sensing area 3 through the wires inside the device (not the external pull wire). The inverter is responsible for converting DC power into AC power, and this conversion process is also completed inside the device without the need for additional power line connection. The AC power converted by the inverter is directly transmitted to the built-in battery 10 of the device for storage. As the energy storage unit of the entire system, the battery can provide continuous power support for other components in the system (such as gas pressure sensor 8, main board 9, etc.) when there is insufficient light or weak wind. This process also achieves self-sufficiency without the need for external power lines.

[0051] This embodiment forms a completely self-sufficient energy supply system through the coordinated work of the solar photovoltaic panel 6, the inverter 11 and the battery 10, which does not require the access of external power lines, improves the flexibility and reliability of the system, reduces the dependence on the traditional power grid, and reduces the difficulty of installation.

Claims

1. A wind farm power prediction device, comprising a column (1) and a wind monitoring unit (2), characterized in that: The wind monitoring unit (2) is rotatably mounted on the column (1); the wind monitoring unit (2) is of a shuttle-shaped structure; a wind sensing area (3) is provided in the middle of the wind monitoring unit (2); narrow and long wind guide heads (5) with gradually pointed ends are symmetrically distributed at both ends of the wind sensing area (3); a column sleeve (4) is provided at the center of the wind sensing area (3); the column sleeve (4) is sleeved on the outside of the column (1) and the circumferential inner wall of the column sleeve (4) does not contact the circumferential outer wall of the column (1); the column sleeve (4) and the wind guide head (5) are fixedly connected via a connecting plate (7); and the upper side wall and the lower side wall of the wind sensing area (3) are rotatably mounted on the column (1) via a bearing unit (12); The interior of the wind sensing area (3) is a sealed space. The left and right side walls of the wind sensing area (3) are made of a flexible material. A gas pressure sensor (8), a main board (9) and a storage battery (10) are arranged inside the wind sensing area (3). A data storage module is arranged inside the main board (9). The gas pressure sensor (8) transmits a numerical signal of the air pressure inside the wind sensing area (3) to the main board (9). The storage battery (10) supplies power to the gas pressure sensor (8) and the main board (9).

2. The wind farm power prediction device according to claim 1, characterized in that: The surface of the wind guide head (5) is covered with a solar photovoltaic panel (6), an inverter (11) is provided inside the wind sensing area (3), and the electric energy converted by the solar photovoltaic panel (6) is stored in a storage battery (10) through the inverter (11).

3. The wind farm power prediction device according to claim 1, characterized in that: The main board (9) is provided with a wireless communication module, and the wireless communication module is used to transmit the gas pressure numerical signal recorded by the gas pressure sensor (8) to the control center.

4. The wind farm power prediction device according to claim 1, characterized in that: The bearing unit (12) comprises a fixed plate (18), an intermediate plate (17) and a contact plate (13); the fixed plate (18) is used for being fixedly locked on the column (1); an upper bearing sleeve (16) is arranged on the intermediate plate (17); a lower bearing sleeve (14) is arranged on the contact plate (13); a radial thrust bearing (15) is installed between the upper bearing sleeve (16) and the lower bearing sleeve (14); and the contact plate (13) is fixedly connected to the upper side wall or the lower side wall of the wind sensing area (3).

5. The wind farm power prediction device according to claim 4, characterized in that: The fixed disk (18) is provided with adjusting screw sleeves (23) and screw through holes (21) in a circular array, and the intermediate disk (17) is also provided with an adjusting screw sleeve (23) at a position corresponding to the fixed disk (18). A forward and reverse bidirectional adjusting screw (24) is threadedly connected between the adjusting screw sleeve (23) of the intermediate disk (17) and the adjusting screw sleeve (23) of the fixed disk (18), and a wrench position (25) is provided in the middle of the forward and reverse bidirectional adjusting screw (24). The intermediate disk (17) is also provided with a locking screw sleeve (20), and a locking screw (22) is inserted into the screw through hole (21), and the end of the locking screw (22) is threadedly connected to the locking screw sleeve (20).

6. The wind farm power prediction device according to claim 5, characterized in that: The screw rod through hole (21) is a waist-shaped structure.

7. The wind farm power prediction device according to claim 4, characterized in that: The fixed disk (18) is provided with a disk sleeve (19), and the disk sleeve (19) is provided with lateral screw sleeves (26) distributed in a ring array, and the lateral screw sleeves (26) are threadedly connected with lateral mounting screws (27), and the lateral mounting screws (27) are used to fix the disk sleeve (19) on the column (1).

8. The wind farm power prediction device according to claim 1, characterized in that: The column (1) is a hollow structure, and both ends of the column (1) are sealed.

9. The wind farm power prediction device according to claim 1, characterized in that: Two or more inclined ropes are arranged between the upright column (1) and the inner part, and the inclined ropes will not interfere with the wind monitoring unit (2).

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