Multi-tower active air blowing and sucking control system and control method

Abstract

The invention discloses a multi-tower active air blowing and sucking control system and method. An environment monitoring module of the system is used for monitoring wind speed and wind direction data of the environment where a plurality of towers are located in real time; the vibration monitoring module is used for monitoring vibration data of a plurality of tower drums in real time; the control module is used for judging whether the lifting resistance and the vibration intensity of the plurality of tower drums reach a starting threshold value of air blowing and suction according to the real-time monitoring data; the air flow adjusting module comprises an air blowing and sucking device, and the control module is further used for outputting an active control instruction to the air flow adjusting module when the lifting resistance and the vibration strength of the multiple tower drums reach the starting threshold value of air blowing and sucking, so that the air blowing and sucking device is actively controlled, and active air blowing and sucking control over the multiple tower drums is achieved. Airflow distribution is intelligently controlled in combination with real-time monitoring data, tower drum vibration can be effectively restrained, the negative influence of a wind field on the tower drum is reduced, particularly, more accurate control can be provided under the strong wind condition, and the safety and economical efficiency of the wind power plant are 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 multi-tower active blowing and suction control system and a control method. Background Art

[0002] With the rapid development of the wind power industry, wind turbine towers, as key components in wind power generation systems, are subject to various mechanical loads from changes in environmental wind speed and the operation of wind turbines. Especially under strong wind conditions, the vibration of the tower will not only affect the working efficiency of the wind turbine, but may also threaten the structural stability of the tower, and even affect the safety and long-term operation of the wind farm. Therefore, effectively controlling the vibration of wind turbine towers and ensuring the stability of the towers under strong wind conditions have become technical issues that need to be urgently solved in the wind power field.

[0003] At present, the control technologies for tower vibration mainly include passive control and active control. Passive control usually suppresses vibration by adding damping devices or changing the elastic modulus of the tower, but the effect is limited and cannot be adjusted in real time according to wind speed. Active control methods have better control effects, but are rarely used in towers and lack coordinated control and dynamic adjustment of multiple towers.

[0004] In addition, traditional airflow control systems often rely on complex mechanical structures and control systems, which are costly and difficult to maintain. Therefore, there is an urgent need for a method that can efficiently, in real time, and at low cost control multiple towers, especially in high wind environments, which can be intelligently adjusted based on wind speed, vibration and other data to reduce the structural burden on wind turbine towers and improve the overall operating efficiency and safety of wind farms. Summary of the invention

[0005] 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 multi-tower active blowing and suction control system, which can realize the stable control of multiple towers efficiently, in real time and at low cost, especially in a strong wind environment, which can perform intelligent adjustment and control of the active blowing and suction of multiple towers according to data such as wind speed and vibration, reduce the structural burden on the multiple towers, and improve the overall operation efficiency and safety of the wind farm.

[0006] The second object of the present invention is to provide a multi-tower active blowing and suction control method.

[0007] To achieve the above object, the present invention is implemented through the following technical solutions:

[0008] A multi-tower active blowing and suction control system, comprising:

[0009] Environmental monitoring module, used to monitor wind speed and direction data of multiple tower environments in real time;

[0010] Vibration monitoring module, used to monitor the vibration data of multiple towers in real time;

[0011] A control module, used to determine whether the lift resistance and vibration intensity of multiple towers reach the start threshold of blowing and suction according to real-time monitoring data;

[0012] The airflow regulation module includes a blowing and suction device. The control module is also used to output active control instructions to the airflow regulation module when the lifting resistance and vibration intensity of multiple towers reach the starting threshold of blowing and suction, so as to actively control the blowing and suction device and realize active blowing and suction control of multiple towers.

[0013] Preferably, the environmental monitoring module includes an anemometer and a wind vane, and the environmental monitoring module is arranged at the top of the tower and in the flow field around the tower; the vibration monitoring module includes accelerometers, and the accelerometers are arranged at the bottom, middle and top of the tower and are evenly distributed along the circumferential direction of the tower.

[0014] Preferably, the control module includes a data processing unit and a central control unit, wherein the data processing unit is used to process real-time monitoring data and output action instructions to the central control unit so that the central control unit issues active control instructions to the airflow regulation module.

[0015] Preferably, the data processing unit is an algorithm module based on machine learning, which enables the central control unit to dynamically control and adjust the airflow regulation module according to real-time monitoring data, thereby adjusting the working parameters of the blowing and suction device to achieve dynamic adjustment of the lift resistance and vibration intensity of multiple towers.

[0016] Preferably, the control module further comprises a fault alarm unit, and the fault alarm unit is used to send an alarm message to the control console after a system failure.

[0017] Preferably, the start threshold of blowing and suction is determined according to the vibration intensity, wind speed and structural health data of the tower.

[0018] Preferably, the blowing and suction devices are arranged along the circumferential direction and the tower height direction of the tower.

[0019] Preferably, the blowing and suction device includes a fan, an air valve and a connecting pipe, the connecting pipe connects the fan and the air valve, the fan is used to blow into or suck out air from the blowing and suction port; the air valve is used to adjust the air flow rate.

[0020] Preferably, the blowing and inhaling air ports are arranged on the tower along the circumferential direction and the tower height direction of the tower, and the circumferential arrangement spacing of the blowing and inhaling air ports is equal to four equal parts of the circumference of the tower.

[0021] To achieve the above object, the second aspect of the present invention provides a multi-tower active blowing and suction control method, which is applied to the multi-tower active blowing and suction control system described above, and the method comprises:

[0022] Step S1: Arrange an airflow regulating module, wherein the airflow regulating module includes an air blowing and suction device;

[0023] Step S2: arranging an environment monitoring module and a vibration monitoring module, and monitoring the vibration data of the multiple towers and the wind speed and wind direction data of the environment in which the multiple towers are located in real time through the environment monitoring module and the vibration monitoring module;

[0024] Step S3: The control module determines whether the lift resistance and vibration intensity of multiple towers reach the start threshold of blowing and suction according to the real-time monitoring data;

[0025] Step S4: when the lift resistance and vibration intensity of multiple towers reach the start threshold of blowing and suction, the control module outputs an active control instruction to the airflow regulation module, so as to actively control the blowing and suction device to realize active blowing and suction control of multiple towers;

[0026] Step S5: the control module dynamically adjusts the working parameters of the blowing and suction device according to the real-time monitoring data fed back;

[0027] Step S6: repeat steps S2 to S5 until the lift resistance and vibration intensity of the multiple towers are lower than the start threshold of the blowing and suction, and the active blowing and suction control is terminated.

[0028] The present invention has at least the following technical effects:

[0029] The present invention provides a multi-tower active blowing and suction control system and control method. The system sets blowing and suction devices on multiple towers and wind farms, and intelligently controls the blowing and suction devices in combination with real-time monitoring data to adjust the lift resistance and vibration intensity of the towers, thereby effectively suppressing tower vibration, reducing the negative impact of tower wake, improving tower stability, and reducing damage to equipment caused by tower vibration. The system can also automatically adjust airflow distribution under different wind speeds and vibration conditions, optimize the overall performance of the wind farm, and improve the operating safety and economy of the wind farm. The system has broad application prospects.

[0030] 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

[0031] Figure 1 It is a structural block diagram of a multi-tower active blowing and suction control system according to an embodiment of the present invention.

[0032] Figure 2 The present invention is a flowchart of a multi-tower active blowing and suction control method according to an embodiment of the present invention.

[0033] Figure 3 The simplified flow chart of the multi-tower active blowing and suction control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] 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.

[0035] The multi-tower active blowing and suction control system and control method of this embodiment will be described below with reference to the accompanying drawings.

[0036] Figure 1 It is a structural block diagram of a multi-tower active blowing and suction control system according to an embodiment of the present invention.

[0037] like Figure 1 As shown, the multi-tower active air blowing and suction control system includes an environment monitoring module, a vibration monitoring module, a control module and an airflow adjustment module. The vibration monitoring module and the environment monitoring module are used to monitor the vibration data of multiple towers and the wind speed and wind direction data of the environment in which the multiple towers are located in real time respectively; the control module is used to determine whether the lifting resistance and vibration intensity of multiple towers reach the starting threshold of air blowing and suction according to the real-time monitoring data, wherein the starting threshold of air blowing and suction is determined according to the vibration intensity, wind speed and structural health data of the towers; the airflow adjustment module includes an air blowing and suction device, and the control module is also used to output active control instructions to the airflow adjustment module when the lifting resistance and vibration intensity of multiple towers reach the starting threshold of air blowing and suction, so as to actively control the air blowing and suction device and realize active air blowing and suction control of multiple towers.

[0038] In this embodiment, the environmental monitoring module includes an anemometer and a wind vane; the vibration monitoring module includes an accelerometer, which are respectively used to monitor the wind speed, wind direction, tower vibration and other data in real time. The environmental monitoring module is arranged at the top of the tower and the flow field around the tower. The accelerometers are arranged at the bottom, middle and top of the tower, and are evenly distributed along the circumference of the tower.

[0039] In this embodiment, the control module includes a data processing unit and a central control unit. The data processing unit is used to process real-time monitoring data and output action instructions to the central control unit so that the central control unit can issue active control instructions to the airflow regulation module.

[0040] Among them, the data processing unit is an algorithm module based on machine learning. According to the real-time monitoring data, the data processing unit can enable the central control unit to dynamically control and adjust the airflow adjustment module, thereby adjusting the working parameters of the blowing and suction device to achieve dynamic adjustment of the lift resistance and vibration intensity of multiple towers. Among them, the algorithm module of the data processing unit specifically adopts a deep reinforcement learning model, which is built using tensorflow (a machine learning framework), and the training data comes from the wind tunnel laboratory and the measured data under actual working conditions. The dynamic control adjustment strategy is specifically pre-trained through wind tunnel laboratory data and measured data of the same type of wind farm.

[0041] For example, the blowing or suction of the blowing and suction device, as well as the air flow rate, i.e., the airflow intensity, are determined based on the real-time monitored wind speed, wind direction, and tower vibration data, thereby achieving dynamic adjustment of the lift resistance and vibration intensity of multiple towers.

[0042] Specifically, the data processing unit processes the input parameters of the environmental monitoring module and outputs the action instructions to the central control unit so that the central control unit can further transmit the active control instructions to the airflow adjustment module to start active control to reduce the lift resistance and vibration of the tower.

[0043] After each active control, the control module needs to determine whether the lift resistance and vibration intensity of the multi-tower are lower than the starting threshold. If they are higher than the starting threshold, the active control is repeated; if they are lower than the starting threshold, the active control is stopped.

[0044] Optionally, the control module further comprises a fault alarm unit, which is used to send an alarm message to the control console after a system failure occurs. It should be noted that after the fault alarm unit sends an alarm, the control console can manually remotely intervene in the airflow adjustment module.

[0045] In this embodiment, the fault alarm unit can monitor the actual operation status of the tower in real time, and can send alarm information to the control console in time, so that the control personnel can intervene manually in time to further ensure the smooth operation of the system.

[0046] In this embodiment, the blowing and suction device is arranged along the circumferential direction and the tower height direction of the tower. The blowing and suction device specifically includes a fan, an air valve and a connecting pipe. The connecting pipe connects the fan and the air valve. The fan is mainly used to blow in or suck out air from the blowing and suction port; the air valve is mainly used to adjust the air volume; and the connecting pipe is used to transport the air flow.

[0047] Optionally, the air inlets and outlets are arranged on the tower along the circumferential direction and the tower height direction of the tower, and the circumferential arrangement spacing of the air inlets and outlets is equal to four equal parts of the circumference of the tower. The tower height arrangement positions of the air inlets and outlets of a 90-meter tower are 30m, 50m, 70m, and 90m from bottom to top.

[0048] Furthermore, the present invention also provides a multi-tower active blowing and suction control method, which is applied to the above-mentioned multi-tower active blowing and suction control system.

[0049] Figure 2 FIG. 1 is a flow chart of a multi-tower active blowing and suction control method according to an embodiment of the present invention. Figure 2 As shown, the method includes:

[0050] Step S1: Arrange an airflow regulating module, wherein the airflow regulating module includes a blowing and suction device.

[0051] Step S2: Arrange an environment monitoring module and a vibration monitoring module, and monitor the vibration data of the multiple towers and the wind speed and wind direction data of the environment in which the multiple towers are located in real time through the environment monitoring module and the vibration monitoring module.

[0052] Step S3: The control module determines whether the lift resistance and vibration intensity of the multiple towers reach the starting threshold of blowing and suction according to the real-time monitoring data.

[0053] Step S4: When the lift resistance and vibration intensity of multiple towers reach the start threshold of blowing and suction, the control module outputs active control instructions to the airflow regulation module to actively control the blowing and suction device to realize active blowing and suction control of multiple towers.

[0054] Step S5: The control module dynamically adjusts the working parameters of the blowing and suction device according to the real-time monitoring data fed back.

[0055] Step S6: repeat steps S2 to S5 until the lift resistance and vibration intensity of the multiple towers are lower than the start threshold of the blowing and suction, and the active blowing and suction control is terminated.

[0056] Figure 3 FIG. 1 is a simplified flow chart of a multi-tower active blowing and suction control method according to an embodiment of the present invention, namely Figure 2 The multi-tower active blowing and suction control content can be simplified as follows: Figure 3 The multi-tower active blowing and suction control method of this embodiment essentially includes six steps: arranging an airflow adjustment module, arranging an environmental monitoring module and a vibration monitoring module, judging whether a start threshold is reached, starting blowing and suction, dynamically adjusting blowing and suction parameters, and judging whether the start threshold is lower than the start threshold according to real-time monitoring data.

[0057] It should be noted that the specific implementation of the multi-tower active blowing and suction control method of this embodiment can refer to the specific implementation of the multi-tower active blowing and suction control system mentioned above, and will not be repeated here to avoid redundancy.

[0058] In summary, the present invention provides a multi-tower active blowing and suction control system and control method. The system sets blowing and suction devices on multiple towers and wind farms, and intelligently controls the blowing and suction devices in combination with real-time monitoring data to adjust the lift resistance and vibration intensity of the tower, thereby effectively suppressing tower vibration, reducing the negative impact of tower wake, improving tower stability, and reducing damage to equipment caused by tower vibration. It can also automatically adjust airflow distribution under different wind speeds and vibration conditions, optimize the overall performance of the wind farm, and improve the operating safety and economy of the wind farm. The system has broad application prospects.

[0059] 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.

[0060] 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 multi-tower active blowing and suction control system, characterized in that: include: Environmental monitoring module, used to monitor wind speed and direction data of multiple tower environments in real time; Vibration monitoring module, used to monitor the vibration data of multiple towers in real time; A control module, used to determine whether the lift resistance and vibration intensity of multiple towers reach the start threshold of blowing and suction according to real-time monitoring data; The airflow regulation module includes a blowing and suction device. The control module is also used to output active control instructions to the airflow regulation module when the lifting resistance and vibration intensity of multiple towers reach the starting threshold of blowing and suction, so as to actively control the blowing and suction device and realize active blowing and suction control of multiple towers.

2. The multi-tower active blowing and suction control system according to claim 1, characterized in that: The environmental monitoring module includes an anemometer and a wind vane, and the environmental monitoring module is arranged at the top of the tower and the flow field around the tower; the vibration monitoring module includes an accelerometer, and the accelerometer is arranged at the bottom, middle and top of the tower, and is evenly distributed along the circumference of the tower.

3. The multi-tower active blowing and suction control system according to claim 1, characterized in that: The control module includes a data processing unit and a central control unit. The data processing unit is used to process real-time monitoring data and output action instructions to the central control unit so that the central control unit can issue active control instructions to the airflow regulation module.

4. The multi-tower active blowing and suction control system according to claim 3, characterized in that: The data processing unit is an algorithm module based on machine learning. The data processing unit can enable the central control unit to dynamically control and adjust the airflow regulation module according to real-time monitoring data, thereby adjusting the working parameters of the blowing and suction device to achieve dynamic adjustment of the lift resistance and vibration intensity of multiple towers.

5. The multi-tower active blowing and suction control system according to claim 3 or 4, characterized in that: The control module further comprises a fault alarm unit, which is used to send an alarm message to the control console after a system fault occurs.

6. The multi-tower active blowing and suction control system according to claim 1, characterized in that: The activation threshold of blowing and suction is determined based on the vibration intensity, wind speed and structural health data of the tower.

7. The multi-tower active blowing and suction control system according to claim 1, characterized in that: The blowing and suction devices are arranged along the circumferential direction of the tower and the tower height direction.

8. The multi-tower active blowing and suction control system according to claim 7, characterized in that: The blowing and suction device comprises a fan, an air valve and a connecting pipe, wherein the connecting pipe connects the fan and the air valve, and the fan is used to blow air into or suck out air from the blowing and suction port; the air valve is used to adjust the air flow rate.

9. The multi-tower active blowing and suction control system according to claim 8, characterized in that: The blowing and inhaling air ports are arranged on the tower along the circumferential direction and the tower height direction of the tower, and the circumferential arrangement spacing of the blowing and inhaling air ports is equal to four equal parts of the circumference of the tower.

10. A multi-tower active blowing and suction control method, characterized in that: Applied to a multi-tower active blowing and suction control system according to any one of claims 1 to 9, the method comprising: Step S1: Arrange an airflow regulating module, wherein the airflow regulating module includes an air blowing and suction device; Step S2: arranging an environment monitoring module and a vibration monitoring module, and monitoring the vibration data of the multiple towers and the wind speed and wind direction data of the environment in which the multiple towers are located in real time through the environment monitoring module and the vibration monitoring module; Step S3: The control module determines whether the lift resistance and vibration intensity of multiple towers reach the start threshold of blowing and suction according to the real-time monitoring data; Step S4: when the lift resistance and vibration intensity of multiple towers reach the start threshold of blowing and suction, the control module outputs an active control instruction to the airflow regulation module, so as to actively control the blowing and suction device to realize active blowing and suction control of multiple towers; Step S5: the control module dynamically adjusts the working parameters of the blowing and suction device according to the real-time monitoring data fed back; Step S6: repeat steps S2 to S5 until the lift resistance and vibration intensity of the multiple towers are lower than the start threshold of the blowing and suction, and the active blowing and suction control is terminated.

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