Device and method for enhancing power generation capacity of vertical axis wind turbine

Abstract

The invention discloses a device and a method for enhancing the power generation capacity of a vertical-axis wind turbine. The device comprises a sensor module, an active control module and a blowing and sucking device which are connected in sequence, wherein the sensor module is used for collecting wind speed, wind pressure and generator rotating speed data of an environment where the wind driven generator is located; the active control module is used for sending out an air blowing and suction function opening or closing and airflow intensity adjusting instruction according to data collected by the sensor module; the air blowing and sucking device is used for achieving air blowing and sucking control according to instructions output by the active control module so as to actively adjust the airflow state of the environment where the wind driven generator is located and improve the power generation efficiency. The method can adapt to dynamic changes under different wind speeds, wind directions and load conditions, the working state of the wind turbine generator can be optimized, the power generation efficiency is improved, and the power generation stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of active control of wind power generation, and in particular to a device and method for enhancing the power generation capacity of a vertical axis wind turbine. Background Art

[0002] As the global demand for clean energy continues to grow, wind power generation, as an important renewable energy source, has been widely used. However, existing vertical axis wind turbines are often affected by factors such as wind speed fluctuations, wind direction changes, and equipment vibration during operation, resulting in unstable power generation efficiency. Especially in the case of low wind speeds and sudden wind speed changes, the efficiency and power generation capacity of the generators often cannot reach the optimal level.

[0003] Traditional methods of improving the power generation capacity of wind turbines mainly focus on improving blade design, but these methods usually require significant hardware changes and are unable to dynamically adjust the working state of the generator according to changes in the external environment, limiting the improvement of its power generation capacity under complex meteorological conditions. Summary of the invention

[0004] The present invention aims to solve the technical problems in the related art at least to a certain extent. To this end, the first object of the present invention is to provide a device for enhancing the power generation capacity of a vertical axis wind turbine, which can adapt to dynamic changes under different wind speeds, wind directions and load conditions, optimize the working state of the wind turbine, improve power generation efficiency, and increase power generation stability.

[0005] A second object of the present invention is to provide a method for increasing the power generation capacity of a vertical axis wind turbine.

[0006] To achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A device for enhancing the power generation capacity of a vertical axis wind turbine, comprising:

[0008] The sensor module is used to collect wind speed, wind pressure and generator speed data of the environment in which the wind turbine is located;

[0009] An active control module, used to issue instructions for turning on or off the blowing and suction functions and adjusting the airflow intensity according to the data collected by the sensor module;

[0010] The blowing and suction device is used to realize blowing and suction control according to the instructions output by the active control module, so as to actively adjust the airflow state of the environment in which the wind turbine is located and improve the power generation efficiency.

[0011] Preferably, the sensor module includes a wind speed sensor, a wind pressure sensor and a rotation speed sensor;

[0012] The active control module includes a control unit and a calculation unit; wherein, when the calculation unit calculates the need for blowing and inhaling control based on the data collected by the sensor module, it outputs a blowing and inhaling control instruction to the control unit so that the control unit can control the opening or closing of the blowing and inhaling function and the adjustment of the airflow intensity.

[0013] Preferably, the air blowing and suction device includes an air duct, an air storage tank and an air blowing and suction valve port arranged on the blades of the wind turbine; the air duct is connected to the air storage tank and the air blowing and suction valve port respectively; the air storage tank is located at the bottom of the wind turbine and is provided with a control valve controlled by the control unit.

[0014] Preferably, the blowing and inhaling valve ports are evenly distributed along the leading and trailing edges of the wind turbine blades, and the spacing between the blowing and inhaling valve ports is no greater than 1 m.

[0015] Preferably, the gas storage tank is provided with an air valve, and the air valve is located at the bottom of the wind turbine. The opening and closing of the air valve only changes the flow field distribution in the bottom area of ​​the wind turbine.

[0016] Preferably, the blowing and suction device further comprises a pressure pump, and the pressure pump is connected to the air storage tank.

[0017] Preferably, the gas tank is provided with a gas pressure threshold monitoring function. When the gas pressure in the gas tank is lower than the set threshold, the control unit controls the gas valve to open and starts the pressure pump to inhale gas from the outside; when the gas pressure in the gas tank exceeds the set threshold, the control unit controls the gas valve to open and starts the pressure pump to discharge excess gas.

[0018] Preferably, the computing unit has a built-in control strategy model trained by deep reinforcement learning, the input parameters of the control strategy model include real-time data collected by the wind speed sensor, wind pressure sensor and rotation speed sensor, and the output parameters are the opening and closing state of the blowing and suction valve ports, the airflow angle and the airflow intensity.

[0019] To achieve the above object, the second aspect of the present invention provides a method for enhancing the power generation capacity of a vertical axis wind turbine, which is applied to the above-mentioned device for enhancing the power generation capacity of a vertical axis wind turbine, and the method comprises:

[0020] The sensor module collects wind speed, wind pressure and generator speed data of the environment in which the wind turbine is located;

[0021] When the calculation unit calculates the need for blowing and suction control based on the data collected by the sensor module, it outputs a blowing and suction control instruction to the control unit;

[0022] The control unit controls the opening of the control valve and the blowing and suction valve port in the blowing and suction device to perform blowing and suction control, and adjusts the blowing and suction angle and airflow intensity by controlling the blowing and suction valve port to adjust the airflow state of the environment in which the wind turbine is located.

[0023] Preferably, the method further comprises:

[0024] When the blowing and suction device is controlled to blow air and the air pressure in the air storage tank is lower than the set threshold, the control unit controls the air valve to open and starts the booster pump to extract gas from the atmosphere for replenishment;

[0025] When the blowing and suction device is controlled to inhale air and causes the air pressure in the air storage tank to exceed a set threshold, the control unit controls the air valve to open and starts the booster pump to discharge excess gas.

[0026] The present invention has at least the following technical effects:

[0027] The present invention provides a device for enhancing the power generation capacity of a vertical axis wind turbine. The device can effectively increase the speed of the wind turbine, enhance the aerodynamic lift, and reduce the airflow resistance on the back of the blades by installing a blowing and suction device on the wind turbine and adjusting the airflow in real time in combination with an active control system, thereby enhancing the power generation capacity. The device can adapt to dynamic changes under different wind speeds, wind directions and load conditions, optimize the working state of the wind turbine, improve power generation efficiency, and increase power generation stability, and has significant technical advantages and broad application prospects.

[0028] In addition, the device is precisely adjusted through an active control system and can work effectively under both low and high wind speed conditions. It is particularly suitable for use under complex meteorological conditions, and can improve the overall power generation efficiency and stability of the wind farm through intelligent adjustment.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural block diagram of a device for enhancing the power generation capacity of a vertical axis wind turbine according to an embodiment of the present invention.

[0031] Figure 2 The present invention is a flowchart of a method for enhancing the power generation capacity of a vertical axis wind turbine according to an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present embodiment is described in detail below, and examples of the embodiment are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The device and method for enhancing the power generation capacity of a vertical axis wind turbine according to the present embodiment will be described below with reference to the accompanying drawings.

[0034] Figure 1 FIG. 1 is a structural block diagram of a device for enhancing the power generation capacity of a vertical axis wind turbine according to an embodiment of the present invention. Figure 1 As shown, the device includes a blowing and suction device, an active control module and a sensor module which are connected in sequence.

[0035] Specifically, the device actively adjusts the airflow state of the wind turbine through the blowing and suction technology to improve its power generation efficiency. The device includes a blowing and suction device, an active control module and a sensor module. Among them, the sensor module includes a wind speed sensor, a wind pressure sensor and a speed sensor. The active control module contains a control unit and a calculation unit.

[0036] The sensor module can monitor and collect the wind speed, wind pressure and generator speed data of the environment where the wind turbine is located in real time, and the data is fed back to the active control module in real time. The calculation unit of the active control module calculates the data collected by the sensor module and issues instructions to the control unit to turn on or off the blowing and suction functions and adjust the airflow intensity. The control unit implements blowing and suction control according to the instructions output by the active control module, specifically controlling the opening and closing of blowing and suction and the airflow intensity, thereby actively adjusting the airflow state of the environment where the wind turbine is located and improving the power generation efficiency.

[0037] Furthermore, the blowing and suction device comprises an air guide pipe, an air storage tank, a pressure pump, an air blowing and suction valve port and an air valve; the air guide pipe connects the air storage tank and the air blowing and suction valve port; the air storage tank is located at the bottom of the wind turbine generator and has a control valve controlled by the control unit; the air blowing and suction valve port is controlled by the control unit to adjust the blowing and suction angle and the airflow intensity, i.e., the wind speed. In this embodiment, the air blowing and suction valve ports are evenly distributed along the front and rear edges of the wind turbine blades, with a spacing of no more than 1m.

[0038] When the calculation unit calculates that blowing and inhalation control is needed based on the data monitored by the sensor module, it outputs a blowing and inhalation control instruction to the control unit. The control unit controls the opening of the control valve and the blowing and inhalation valve port to perform blowing and inhalation control, and realizes the blowing and inhalation angle and airflow intensity, i.e., wind speed adjustment, by controlling the blowing and inhalation valve port.

[0039] In this embodiment, the booster pump is connected to the gas storage tank, and the booster pump is used to adjust the pressure of the gas in the gas storage tank; the gas valve is arranged at the bottom of the wind turbine, and is used to change the flow field at the bottom of the wind turbine.

[0040] The gas tank is provided with a pressure threshold monitoring function. When the blowing and suction device is controlled to blow air, resulting in insufficient air pressure in the gas tank, the control unit controls the air valve to open, and the pressure pump draws gas from the atmosphere for replenishment. When the blowing and suction device is controlled to inhale air, resulting in the air pressure in the gas tank exceeding the gas tank threshold, the control valve is opened, and the pressure pump is started to discharge excess gas. Therefore, the air valve is located at the bottom of the wind turbine, which can only change the flow field at the bottom of the wind turbine without affecting the blowing and suction above.

[0041] Furthermore, the computing unit automatically adjusts the working parameters of the blowing and suction through the control strategy model, and the control strategy model is trained using deep reinforcement learning. In this embodiment, the training data of the control strategy model includes but is not limited to wind speed, wind pressure, blade angle, and rotation speed. In this embodiment, the working parameters of the blowing and suction are the opening and closing state of the blowing and suction valve port, the airflow angle, and the airflow intensity.

[0042] It is understandable that the real-time data collected by the wind speed sensor, wind pressure sensor and rotation speed sensor can be input into the control strategy model, and then the opening and closing state of the blowing and suction valve ports, the airflow angle and the airflow intensity can be output.

[0043] Figure 2 FIG. 1 is a flow chart of a method for enhancing the power generation capacity of a vertical axis wind turbine according to an embodiment of the present invention. Figure 2 As shown, the method includes:

[0044] Step S1: The sensor module collects wind speed, wind pressure and generator speed data of the environment in which the wind turbine is located.

[0045] Step S2: When the calculation unit calculates the need for blowing and suction control based on the data collected by the sensor module, the calculation unit outputs a blowing and suction control instruction to the control unit.

[0046] Step S3: The control unit controls the opening of the control valve and the blowing and suction valve port in the blowing and suction device to perform blowing and suction control, and adjusts the blowing and suction angle and airflow intensity by controlling the blowing and suction valve port to adjust the airflow state of the environment in which the wind turbine is located.

[0047] In one embodiment of the present invention, the method further comprises:

[0048] When the blowing and suction device is controlled to blow air and the air pressure in the air tank is lower than the set threshold, the control unit controls the air valve to open and starts the pressure pump to draw gas from the atmosphere for replenishment; when the blowing and suction device is controlled to inhale air and the air pressure in the air tank exceeds the set threshold, the control unit controls the air valve to open and starts the pressure pump to discharge excess gas.

[0049] It should be noted that the specific implementation of the method for enhancing the power generation capacity of a vertical axis wind turbine according to an embodiment of the present invention can refer to the specific implementation of the device for enhancing the power generation capacity of a vertical axis wind turbine described above, and will not be described again here to avoid redundancy.

[0050] In summary, the present invention provides a device and method for enhancing the power generation capacity of a vertical axis wind turbine, wherein the enhancement device can effectively increase the speed of the wind turbine, enhance the aerodynamic lift, and reduce the airflow resistance on the back of the blades by installing a blowing and suction device on the wind turbine and adjusting the airflow in real time in combination with an active control system, thereby achieving enhanced power generation capacity. The device can adapt to dynamic changes under different wind speeds, wind directions, and load conditions, optimize the working state of the wind turbine, improve power generation efficiency, and increase power generation stability, and has significant technical advantages and broad application prospects.

[0051] In addition, the device is precisely adjusted through an active control system and can work effectively under both low and high wind speed conditions. It is particularly suitable for use under complex meteorological conditions, and can improve the overall power generation efficiency and stability of the wind farm through intelligent adjustment.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0053] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A device for enhancing the power generation capacity of a vertical axis wind turbine, characterized in that: include: The sensor module is used to collect wind speed, wind pressure and generator speed data of the environment in which the wind turbine is located; An active control module, used to issue instructions for turning on or off the blowing and suction functions and adjusting the airflow intensity according to the data collected by the sensor module; The blowing and suction device is used to realize blowing and suction control according to the instructions output by the active control module, so as to actively adjust the airflow state of the environment in which the wind turbine is located and improve the power generation efficiency.

2. The device for enhancing the power generation capacity of a vertical axis wind turbine according to claim 1, characterized in that: The sensor module includes a wind speed sensor, a wind pressure sensor and a rotation speed sensor; The active control module includes a control unit and a calculation unit; wherein, when the calculation unit calculates the need for blowing and inhaling control based on the data collected by the sensor module, it outputs a blowing and inhaling control instruction to the control unit so that the control unit can control the opening or closing of the blowing and inhaling function and the adjustment of the airflow intensity.

3. The device for enhancing the power generation capacity of a vertical axis wind turbine according to claim 2, characterized in that: The air blowing and suction device comprises an air duct, an air storage tank and an air blowing and suction valve port arranged on the blades of the wind turbine generator; the air duct is connected to the air storage tank and the air blowing and suction valve port respectively; the air storage tank is located at the bottom of the wind turbine generator and is provided with a control valve controlled by a control unit.

4. The device for enhancing the power generation capacity of a vertical axis wind turbine according to claim 3, characterized in that: The blowing and suction valve openings are evenly distributed along the front and rear edges of the wind turbine blades, and the spacing between the blowing and suction valve openings is no greater than 1m.

5. The device for enhancing the power generation capacity of a vertical axis wind turbine according to claim 3, characterized in that: The gas storage tank is provided with an air valve, and the air valve is located at the bottom of the wind turbine. The opening and closing of the air valve only changes the flow field distribution in the bottom area of ​​the wind turbine.

6. The device for enhancing the power generation capacity of a vertical axis wind turbine according to claim 5, characterized in that: The blowing and suction device also includes a pressure pump, and the pressure pump is connected to the air storage tank.

7. The device for enhancing the power generation capacity of a vertical axis wind turbine according to claim 6, characterized in that: The gas tank is provided with a gas pressure threshold monitoring function. When the gas pressure in the gas tank is lower than the set threshold, the control unit controls the gas valve to open and starts the pressure pump to inhale gas from the outside; when the gas pressure in the gas tank exceeds the set threshold, the control unit controls the gas valve to open and starts the pressure pump to discharge excess gas.

8. The device for enhancing the power generation capacity of a vertical axis wind turbine according to claim 3, characterized in that: The computing unit has a built-in control strategy model trained by deep reinforcement learning. The input parameters of the control strategy model include real-time data collected by a wind speed sensor, a wind pressure sensor, and a rotation speed sensor. The output parameters are the opening and closing state of the blowing and suction valve ports, the airflow angle, and the airflow intensity.

9. A method for increasing the power generation capacity of a vertical axis wind turbine, characterized in that: Applicable to the device for enhancing the power generation capacity of a vertical axis wind turbine according to any one of claims 1 to 8, the method comprising: The sensor module collects wind speed, wind pressure and generator speed data of the environment in which the wind turbine is located; When the calculation unit calculates the need for blowing and suction control based on the data collected by the sensor module, it outputs a blowing and suction control instruction to the control unit; The control unit controls the opening of the control valve and the blowing and suction valve port in the blowing and suction device to perform blowing and suction control, and adjusts the blowing and suction angle and airflow intensity by controlling the blowing and suction valve port to adjust the airflow state of the environment in which the wind turbine is located.

10. The method for enhancing the power generation capacity of a vertical axis wind turbine according to claim 9, characterized in that: The method further comprises: When the blowing and suction device is controlled to blow air and the air pressure in the air storage tank is lower than the set threshold, the control unit controls the air valve to open and starts the booster pump to extract gas from the atmosphere for replenishment; When the blowing and suction device is controlled to inhale air and causes the air pressure in the air storage tank to exceed a set threshold, the control unit controls the air valve to open and starts the booster pump to discharge excess gas.

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