Power transmission tower vibration response adaptive control device and method considering microtopography influence
By setting up a water distribution tank at the vibration turning point of the transmission tower and using an automated control system, the vibration problems caused by wind loads under the micro-terrain are solved, the dispersion and absorption of vibration energy is achieved, the risk of structural damage is reduced, and the stable operation of the transmission tower is ensured. and power supply safety.
Patent Information
- Application Number
- CN202411356690.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-01-03
AI Technical Summary
The transmission tower is subject to increased wind load under the influence of micro-terrain, resulting in increased vibration and reduced structural stability, increasing the risk of collapse. The existing technology has failed to effectively consider the impact of vibration on the structure.
Design a device including a controller, energy supply system, vibration control system and temperature regulation system. By setting up a water distribution tank at each vibration turning point of the transmission tower, using water pumps and electric valves to automatically adjust the water storage volume, combining solar panel power supply and temperature sensors Heater, which monitors and controls vibration and temperature in real time, realizes adaptive vibration and cooling functions.
Effectively reduce the impact of vibration on the tower body, reduce the risk of structural damage, ensure the stable operation of the transmission tower under wind-induced or environmental excitation, improve power supply safety, and reduce the risk of structural damage caused by vibration.
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Figure CN119247779A_ABST
Abstract
Description
Technical Field
[0001] The invention patent relates to the field of transmission tower vibration reduction technology, and specifically to a transmission tower vibration response adaptive control device and method taking into account the influence of micro-topography. Background Art
[0002] At present, transmission towers are important facilities for power transmission, and their stable operation is an important guarantee for the safe and stable operation of the power system. Under severe weather conditions such as strong winds, the wind load on the transmission tower increases significantly, and the vibration amplitude also increases accordingly. If the transmission tower is damaged or collapsed due to vibration, it will cause power outages, which will have a serious impact on social production and people's lives. Therefore, it is very important to ensure the safety and stability of the transmission tower structure.
[0003] Microtopography refers to the ground and ground undulations of a relatively small area of land that supports objects such as trees, flowers, water bodies and garden structures within a certain range. In the construction and operation of transmission towers, micro-topography may include terrain features such as hills, gullies, canyons, and wind vents. These features will significantly affect the local wind speed, wind direction, and airflow stability. In particular, wind has a greater impact on transmission towers: 1. Increased dynamic response: Under the influence of micro-topography, wind speed may increase significantly due to the narrow channel effect, turbulence effect, etc., resulting in an increase in wind load on the transmission tower, and then a greater dynamic response, such as vibration and shaking; 2. Reduced structural stability: Transmission towers will vibrate under the action of natural forces such as wind loads and earthquakes. Long-term accumulated vibrations may reduce the structural stability of transmission towers, and may also cause structural fatigue, crack expansion, and even structural failure, increasing the risk of collapse; 3. Impact on power supply safety: As an important supporting structure for power transmission, the stability of transmission towers is directly related to the safe and stable operation of the power system. Once a transmission tower collapses or is damaged due to wind vibration, it will seriously affect power supply safety and cause serious consequences such as large-scale power outages.
[0004] In summary, the impact of wind-induced load on transmission tower vibration cannot be ignored. However, the current operation and maintenance of transmission towers focuses on anti-corrosion treatment. As for the impact of vibration on it, the stiffness is generally adjusted at the beginning of construction to control its amplitude, and the impact of amplitude is rarely considered in later operations.
[0005] Therefore, in order to solve the above problems, the present invention provides a transmission tower vibration response adaptive control device and method taking into account the influence of micro-topography. Summary of the invention
[0006] In order to overcome the shortcomings of the above-mentioned prior art and solve the problem that the vibration of the transmission tower caused by the micro-topography wind load is prone to increase the dynamic response and reduce the structural stability, the present invention provides a transmission tower vibration response adaptive control device and method considering the influence of micro-topography, and the specific technical scheme is as follows:
[0007] A transmission tower vibration response adaptive control device considering the influence of micro-topography, comprising a controller, an energy supply system, a vibration control system and a temperature regulation system; the energy supply system comprises a solar panel, a lithium battery and a driving device; the solar panel is angle-adjusted by the driving device; the vibration control system comprises a water storage tank and a plurality of water distribution tanks arranged at the turning points of each vibration mode of the transmission tower; the water storage tank is equipped with a water pump; a vibration sensor is arranged on the box body of each water distribution tank; the temperature regulation system comprises a plurality of groups of temperature sensors and heaters; a group of temperature sensors and heaters is arranged in each water distribution tank; the controller, energy supply system and water storage tank are all installed on the base of the transmission tower.
[0008] Preferably, an electric valve is provided at the water outlet at the bottom of each water distribution tank and a water level gauge is provided in each water distribution tank.
[0009] Preferably, the solar panel is mounted on the top of the base through a connecting chamber; the bottom of the connecting chamber is hinged to the top of the base through a universal hinge; a motor mounting frame is provided on the side wall of the base; the driving device includes a first motor fixed on the motor mounting frame, and the output shaft of the first motor is provided with a turbine rod; a first connecting rod is horizontally provided on the outer side wall of the connecting chamber close to the turbine rod, and the first connecting rod is sleeved with a first transmission gear; the first transmission gear is meshed with the turbine rod to realize the flipping of the solar panel in the vertical direction; a lithium battery and a second motor are arranged in the connecting seat; the output shaft sleeve of the second motor is sleeved with a second transmission gear; a through hole is provided on the top wall of the connecting chamber; a bearing seat and a third connecting rod are provided at the bottom of the solar panel, one end of the third connecting rod is rotatably connected to the bearing in the bearing seat, the other end of the third connecting rod passes through the through hole into the connecting chamber, and the position of the third connecting rod corresponding to the second transmission gear is sleeved with a third transmission gear; the third transmission gear is meshed with the second transmission gear to realize the horizontal rotation of the solar panel.
[0010] Preferably, the power supply system, vibration sensor, temperature sensor, water pump, electric valve, heater and water level meter are all electrically connected to the controller.
[0011] Preferably, the water storage tank and several water distribution tanks are connected in series in sequence through water pipes; the water pipes are installed inside the angle iron of the transmission tower component; the capacity of the water storage tank is greater than twice the sum of the capacities of the several water distribution tanks.
[0012] Also preferably, when the summer or the ambient temperature is higher than 30°C, the temperature sensor in each water distribution tank sends a signal to the controller and intermittently fills or drains each water distribution tank, so that the water flows along the water pipe to cool the transmission tower components;
[0013] When it is winter or the ambient temperature is below 0℃, the temperature sensor in each water distribution tank sends a signal to the controller. The controller controls the heater in each water distribution tank to heat and maintain the water temperature above 10℃, so that the ice in the area where each water distribution tank is located melts. The gravity and heat conduction effects are used to melt the ice below the area where each water distribution tank is located, and the ice on the surface of the transmission tower components is removed.
[0014] A method for adaptively controlling vibration response of a transmission tower considering the influence of micro-topography, using the device for adaptively controlling vibration response of a transmission tower considering the influence of micro-topography as claimed in any one of claims 1 to 6, characterized in that it specifically comprises the following steps:
[0015] S1. Power supply system collects electricity;
[0016] S2. Determine the turning points of each vibration mode of the transmission tower and set up water distribution tanks at each turning point;
[0017] S3. Calculate the amplitude value of each water distribution tank when all water distribution tanks are unloaded;
[0018] S4. Inject different volumes of water into the water distribution tanks according to environmental excitation or wind-induced excitation to reduce the amplitude value of each water distribution tank at the location;
[0019] S5. Measure whether the amplitude value of each water distribution tank after water injection is reduced by more than 20% compared with the original amplitude value. If yes, maintain the current state; if not, continue to inject water and repeat S4 until the amplitude value at the location of each water distribution tank meets the vibration reduction requirements.
[0020] Further preferably, the S1 specifically includes the following sub-steps:
[0021] S1.1 The initial position of the solar panel faces east, collects solar energy for 15 minutes at the initial position, and measures the current and voltage intensity converted by the solar panel at the initial position;
[0022] S1.2 Rotate the solar panel 2° to the west and collect solar energy for 1 minute. If the current and voltage intensity collected at the current position are weaker than the average current and voltage within 1 minute before the angle adjustment, rotate the solar panel back to the position before the angle adjustment and continue to collect solar energy for 15 minutes.
[0023] If the current and voltage intensity collected at the current position is stronger than the average current and voltage within 1 minute before the angle adjustment, then 15 minutes of solar energy will be collected at the current position;
[0024] S1.3 Rotate the solar panel 2° to the west every 15 minutes and repeat S1.2.
[0025] Still further preferably, the S2 specifically includes the following sub-steps:
[0026] S2.1 Establish a numerical model of the transmission tower using finite element software and vibration sensor detection data;
[0027] S2.2. Perform modal analysis using the numerical model in S2.1 to obtain the vibration mode of the transmission tower;
[0028] S2.3. Determine the turning points of each vibration mode according to the vibration mode of the transmission tower and set up water distribution tanks at each turning point.
[0029] More preferably, the sub-step of filling each water distribution tank with water under the environmental stimulus in S4 is as follows:
[0030] S4.1.1 Pump the water in the water storage tank to the water distribution tank at the top of the transmission tower through a water pump and open the electric valve at the bottom of each water distribution tank;
[0031] S4.1.2 Then the water distribution tank at the top of the transmission tower is filled with water from top to bottom in turn into the water distribution tanks below until the water volume in each water distribution tank accounts for 20% of the tank volume, and the electric valve at the bottom of each water distribution tank is closed and the current state is maintained;
[0032] The sub-steps of filling each water distribution tank with water under the wind-induced excitation in S4 are as follows:
[0033] S4.2.1 Pump water from the bottom water tank to the water distribution tank at the top of the transmission tower. According to the amplitude values of each water distribution tank measured by S3, water is injected into each water distribution tank from top to bottom through the water distribution tank at the top of the transmission tower. Among them, the water injection amount of the water distribution tank at the maximum amplitude value accounts for 90% of the volume of the tank, and the water injection amount of the water distribution tank at the minimum amplitude value accounts for 20% of the volume of the tank. The water injection amount of other water distribution tanks is determined based on the vibration amplitude and linear interpolation is used;
[0034] S4.2.2 Measure the amplitude value of each water distribution tank again after the water filling in S4.2.1 is completed. If the amplitude value decreases by more than 20% compared with that before the water filling, maintain the current state; otherwise, continue to fill water into each water distribution tank, increasing the water filling amount by 5% each time, and measure the amplitude value of each water distribution tank again until the amplitude value decreases by more than 20% compared with that before the water filling, then end the water filling and maintain the current state.
[0035] The beneficial effects of the present invention are:
[0036] 1. The present invention has a simple structure and low construction cost. By arranging water distribution tanks at the turning points of each vibration mode of the transmission tower and adjusting the water storage capacity in each water distribution tank, the vibration energy can be well dispersed and absorbed, the direct impact of the vibration on the tower body can be reduced, and the vibration amplitude of the transmission tower under wind-induced excitation or environmental excitation can be effectively controlled, thereby reducing the risk of structural damage caused by excessive vibration.
[0037] 2. The present invention can monitor the water level changes of each water distribution tank in real time by arranging a water level meter in the water distribution tank, provide accurate data support for the controller, ensure the accuracy and reliability of the vibration control effect, and realize automatic control and regulation of water flow by combining components such as water pumps and electric valves, and can perform dynamic adjustments according to real-time vibration conditions without manual intervention;
[0038] 3. The present invention effectively solves the impact of ambient temperature on transmission tower components in special environments in summer or winter by arranging temperature sensors and heaters in the water distribution tank. On the one hand, it can achieve a cooling effect for the transmission tower components. On the other hand, the heater can heat the water in the tank in a low temperature environment to avoid ice on the surface of the transmission tower components, thereby affecting the structural performance of the transmission tower, effectively reducing the risk of damage to the transmission tower, and thus meeting its more stable service state. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] The drawings constituting the specification of this application are used to provide further understanding of this application and do not constitute improper limitations on this application.
[0040] Figure 1 is a flow chart of the present invention;
[0041] Figure 2 It is a schematic diagram of the installation of each water distribution tank of the present invention;
[0042] Figure 3 This is a flow chart of solar panel energy collection in the present invention;
[0043] Figure 4 This is a schematic diagram of the installation of solar panels in the present invention;
[0044] Figure 5 It is a schematic diagram of the structure of the driving device in the present invention;
[0045] Figure 6 It is a flow chart of the temperature control system in the present invention;
[0046] In the figure, 1-transmission tower; 2-water storage tank; 3-water distribution tank; 4-water pipe; 5-solar panel; 6-base; 61-motor mounting frame; 62-universal hinge; 63-connecting chamber; 7-first motor; 71-turbine rod; 8-first transmission gear; 81-first connecting rod; 9-second motor; 91-second transmission gear; 10-third transmission gear; 101-third connecting rod. DETAILED DESCRIPTION
[0047] The specific implementation manner of a transmission tower vibration response adaptive control device and method considering the influence of micro-topography provided by the present invention is further described in conjunction with the accompanying drawings and embodiments.
[0048] like Figure 2As shown, a transmission tower vibration response adaptive control device considering the influence of micro-topography includes a controller, an energy supply system, a vibration control system and a temperature control system; the energy supply system includes a solar panel 5, a lithium battery and a driving device; the solar panel 5 is angle-adjusted by the driving device; the vibration control system includes a water storage tank 2 and a plurality of water distribution tanks 3 arranged at the turning points of each vibration mode of the transmission tower 1; the water storage tank 2 is equipped with a water pump; a vibration sensor is arranged on the box body of each water distribution tank 3; the temperature control system includes a plurality of groups of temperature sensors and heaters; a group of temperature sensors and heaters are arranged in each water distribution tank 3; the controller, energy supply system and water storage tank are all installed on the base of the transmission tower 1.
[0049] Preferably, an electric valve is provided at the bottom water outlet of each water distribution tank 3 , and a water level meter is provided in each water distribution tank 3 .
[0050] like Figure 4-5 As shown, the solar panel 5 is installed on the top of the base 6 through a connecting chamber 63; the bottom of the connecting chamber 63 is hinged to the top of the base 6 through a universal hinge 62; the side wall of the base 3 is provided with a motor mounting frame 61; the driving device includes a first motor 7 fixed on the motor mounting frame 61, and the output shaft of the first motor 7 is provided with a turbine rod 71; the outer side wall of the connecting chamber 63 close to the turbine rod 71 is horizontally provided with a first connecting rod 81, and the surface of the first connecting rod 81 is sleeved with a first transmission gear 8; the first transmission gear 8 is meshed with the turbine rod 71, thereby realizing the flipping of the solar panel 5 in the vertical direction;
[0051] Preferably, a lithium battery and a second motor 9 are arranged in the connecting seat 63; the output shaft sleeve of the second motor 9 is provided with a second transmission gear 91; the top wall of the connecting chamber 63 is provided with a through hole; the bottom of the solar panel 5 is provided with a bearing seat and a third connecting rod 101, one end of the third connecting rod 101 is rotatably connected to the bearing in the bearing seat, the other end of the third connecting rod 101 passes through the through hole into the inner cavity of the connecting chamber 63, and the third connecting rod 101 is sleeved with a third transmission gear 10 at a position corresponding to the second transmission gear 91; the third transmission gear 10 is meshed with the second transmission gear 91, thereby realizing the horizontal rotation of the solar panel.
[0052] It is worth noting that the power supply system, vibration sensor, temperature sensor, water pump, electric valve, heater and water level meter are all electrically connected to the controller.
[0053] It is also preferred that the water storage tank 2 and the plurality of water distribution tanks 3 are connected in series in sequence through a water pipe 4; the water pipe 4 is laid along the inside of the angle iron component of the transmission tower 1, which, on the one hand, protects the water pipe 4, and on the other hand, facilitates the cooling effect on the components of the transmission tower 1; it is worth noting here that the capacity of the water storage tank 2 is greater than twice the sum of the capacities of the plurality of water distribution tanks 3.
[0054] like Figure 6 As shown, when it is summer or the ambient temperature is higher than 30°C, the temperature sensor in each water distribution tank 3 sends a signal to the controller and through the intermittent filling or emptying of each water distribution tank 3, the water flow in the water pipe 4 can flow to cool the components of the transmission tower 1;
[0055] When it is winter or the ambient temperature is below 0℃, the temperature sensor in each water distribution tank 3 sends a signal to the controller, and the controller controls the heater in each water distribution tank 3 to heat and maintain the water temperature above 10℃, so that the ice in the area where each water distribution tank 3 is located melts, and the ice below the area where each water distribution tank 3 is located melts by gravity and heat conduction effect, thereby removing the ice on the surface of the transmission tower 1 component, effectively reducing the impact of high temperature or low temperature harsh environment on the structural performance of the transmission tower components. .
[0056] A method for adaptively controlling vibration response of a transmission tower considering the influence of micro-topography, using the above-mentioned adaptive control device, specifically comprises the following steps:
[0057] S1. The power supply system collects electricity; Figure 3 As shown, it specifically includes the following sub-steps:
[0058] S1.1 The initial position of the solar panel faces due east, collects solar energy for 15 minutes at the initial position, and measures the current and voltage intensity converted by the solar panel at the initial position;
[0059] S1.2 Rotate the solar panel 2° to the west and collect solar energy for 1 minute. If the current and voltage intensity collected at the current position are weaker than the average current and voltage within 1 minute before the angle adjustment, rotate the solar panel back to the position before the angle adjustment and continue to collect solar energy for 15 minutes.
[0060] If the current and voltage intensity collected at the current position is stronger than the average current and voltage within 1 minute before the angle adjustment, then 15 minutes of solar energy will be collected at the current position;
[0061] S1.3 Rotate the solar panel 2° to the west every 15 minutes and repeat S1.2.
[0062] It is worth explaining here that the solar panels face due east at sunrise every day, and are rotated 2° to the west every 15 minutes, and are turned back to the east after sunset every day to prepare for energy collection on the next day. In addition, the angle between the solar panels and the ground can be adjusted every 15 days based on the angle between the ecliptic plane and the horizon to ensure that the solar panels always face the direction of the strongest solar radiation, thereby improving the efficiency of electricity conversion.
[0063] The electric energy collected by the solar panel is divided into two parts, 30% of which is stored in the lithium battery and used to power the device in the absence of sunlight; 70% of the electric energy is used to pump the water in the water tank to the water distribution tank at the top of the transmission tower and to power other electrical equipment.
[0064] S2. Determine the turning points of each vibration mode of the transmission tower and set up water distribution tanks at each turning point, which specifically includes the following sub-steps:
[0065] S2.1 Establish a numerical model of the transmission tower using finite element software and vibration sensor detection data;
[0066] S2.2. Perform modal analysis using the numerical model in S2.1 to obtain the vibration mode of the transmission tower;
[0067] S2.3. Determine the turning points of each vibration mode according to the vibration mode of the transmission tower and set up water distribution tanks at each turning point.
[0068] It is worth noting here that since the measurement of transmission tower vibration modes belongs to a common calculation method, it is easy to obtain the turning points of each vibration mode of the known transmission tower vibration mode, and the determination process will not be repeated here and will not serve as a further limitation of the present invention.
[0069] S3. Calculate the amplitude parameters of each water distribution tank when all water distribution tanks are unloaded, mainly including acceleration, velocity and displacement;
[0070] S4. Inject different volumes of water into the water distribution tanks according to environmental excitation or wind excitation to reduce the amplitude value at the location of each water distribution tank:
[0071] like Figure 1 As shown, the sub-steps of filling each water distribution tank with water under the environmental stimulus in S4 are as follows:
[0072] S4.1.1 Pump the water in the water storage tank to the water distribution tank at the top of the transmission tower through a water pump and open the electric valve at the bottom of each water distribution tank;
[0073] S4.1.2 Then the water distribution tank at the top of the transmission tower is filled with water from top to bottom in turn into the water distribution tanks below until the water volume in each water distribution tank accounts for 20% of the tank volume, and the electric valve at the bottom of each water distribution tank is closed and the current state is maintained;
[0074] More preferably, the sub-step of filling each water distribution tank with water under wind-induced excitation in S4 is as follows:
[0075] S4.2.1 Pump water from the bottom water tank to the water distribution tank at the top of the transmission tower. According to the amplitude values of each water distribution tank measured by S3, water is injected into each water distribution tank from top to bottom through the water distribution tank at the top of the transmission tower. Among them, the water injection amount of the water distribution tank at the maximum amplitude value accounts for 90% of the volume of the tank, and the water injection amount of the water distribution tank at the minimum amplitude value accounts for 20% of the volume of the tank. The water injection amount of other water distribution tanks is determined based on the vibration amplitude and linear interpolation is used;
[0076] S4.2.2 Measure the amplitude of each water distribution tank again after the water filling in S4.2.1 is completed. If the amplitude value decreases by more than 20% compared with that before the water filling, maintain the current state; otherwise, continue to fill water into each water distribution tank, increase the water filling amount by 5% each time, and measure the amplitude of each water distribution tank again until the amplitude value decreases by more than 20% compared with that before the water filling, then end the water filling and maintain the current state.
[0077] S5. Measure whether the amplitude value of each water distribution tank after water injection is reduced by more than 20% compared with the original amplitude value. If yes, maintain the current state; if not, continue to inject water and repeat S4 until the amplitude value at the location of each water distribution tank meets the vibration reduction requirements.
[0078] The present invention has a simple structure and low construction cost. By arranging water distribution tanks at the turning points of each vibration mode of the transmission tower and adjusting the water storage capacity in each water distribution tank, the vibration energy can be well dispersed and absorbed, the direct impact of the vibration on the tower body can be reduced, the vibration amplitude of the transmission tower under wind-induced excitation or environmental excitation can be effectively controlled, and the risk of structural damage caused by excessive vibration can be reduced.
[0079] The present invention can monitor the water level changes of each water distribution tank in real time by arranging a water level meter in the water distribution tank, provide accurate data support for the controller, ensure the accuracy and reliability of the vibration control effect, and realize automatic control and regulation of water flow by combining components such as water pumps and electric valves, and can perform dynamic adjustments according to real-time vibration conditions without manual intervention;
[0080] In addition, the present invention effectively solves the impact of ambient temperature on transmission tower components in special environments in summer or winter by arranging temperature sensors and heaters in the water distribution tank. On the one hand, it can achieve a cooling effect for the transmission tower components. On the other hand, in a low temperature environment, the heater can heat the water in the tank to avoid ice on the surface of the transmission tower components, thereby affecting the structural performance of the transmission tower, effectively reducing the risk of damage to the transmission tower, and thus meeting its more stable service status.
[0081] The present invention needs to pay attention to the following aspects during implementation:
[0082] 1. When installing solar panels, make sure they are firmly fixed to avoid loosening or damage in windy or rainy weather. At the same time, pay attention to avoid the impact of obstructions on solar panels to ensure that they can fully receive solar radiation; regularly clean and maintain solar panels to remove dust, dirt and snow on the surface, keep its surface clean and flat, thereby ensuring the conversion efficiency of solar energy and extending its service life;
[0083] 2. During the device design phase, detailed mechanical analysis and calculation must be carried out to ensure that the installation position of each water distribution tank can accurately correspond to the vibration turning point of the transmission tower, and reasonably determine the capacity ratio of the water storage tank and the water distribution tank as well as the water flow distribution strategy;
[0084] 3. During the installation process, the design drawings and specifications should be strictly followed to ensure that the installation positions of various components (such as water distribution tanks, water pumps, water pipes, etc.) are accurate, the installation quality of equipment such as heaters and thermometers, and the sealing and stability of water pipe connections are ensured. At the same time, care should be taken to avoid damage or impact on the original structure of the transmission tower;
[0085] 4. Establish a complete monitoring mechanism to monitor the water level changes, vibration amplitude, ambient temperature and other parameters of each water distribution tank in real time, and feed the data back to the controller in a timely manner. At the same time, the alarm system and fault handling mechanism can be reasonably set up so that problems can be discovered and solved in time when they occur;
[0086] 5. To ensure the long-term stable operation of the device, it is necessary to regularly inspect and maintain the heater, thermometer, pipeline and other equipment. For example, clean the impurities in the water pipe, replace the aging seals, check the heating effect of the heater, etc. At the same time, it is also necessary to update and maintain the software of the intelligent control system to ensure its perfect and stable functions.
[0087] In the present invention, the orientation or position relationship indicated by terms such as "upper", "lower", "bottom", "top", etc. is based on the orientation or position relationship shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationship of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention. Terms such as "connected" and "connected" should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present invention can be determined according to specific circumstances, and they cannot be understood as limitations on the present invention.
[0088] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.
Claims
1. A transmission tower vibration response adaptive control device considering the influence of micro-topography, characterized in that: Including controller, energy supply system, vibration control system and temperature regulation system; The energy supply system includes a solar panel, a lithium battery and a driving device; the solar panel is angle-adjusted by the driving device; The vibration control system comprises a water storage tank and a plurality of water distribution tanks arranged at the turning points of each vibration mode of the transmission tower; a water pump is provided in the water storage tank; and a vibration sensor is provided on the box body of each water distribution tank; The temperature regulation system includes several groups of temperature sensors and heaters; each of the water distribution tanks is provided with a group of temperature sensors and heaters; The controller, energy supply system and water storage tank are all installed on the base of the transmission tower.
2. The transmission tower vibration response adaptive control device considering micro-topography influence according to claim 1 is characterized in that: An electric valve is arranged at the water outlet at the bottom of each water distribution tank and a water level meter is arranged in each water distribution tank.
3. The transmission tower vibration response adaptive control device considering micro-topography influence according to claim 2 is characterized in that: The solar panel is installed on the top of the base through a connecting chamber; the bottom of the connecting chamber is hinged to the top of the base through a universal hinge; the side wall of the base is provided with a motor mounting frame; The driving device comprises a first motor fixed on a motor mounting frame, wherein an output shaft of the first motor is provided with a turbine rod; a first connecting rod is horizontally provided on an outer side wall of the connecting chamber close to a side of the turbine rod, and a first transmission gear is sleeved on the first connecting rod; the first transmission gear is meshed with the turbine rod to realize the flipping of the solar panel in the vertical direction; A lithium battery and a second motor are arranged in the connecting seat; an output shaft sleeve of the second motor is provided with a second transmission gear; A through hole is provided on the top wall of the connecting chamber; a bearing seat and a third connecting rod are provided at the bottom of the solar panel, one end of the third connecting rod is rotatably connected to the bearing in the bearing seat, the other end of the third connecting rod passes through the through hole into the connecting chamber, and a third transmission gear is sleeved on the position of the third connecting rod corresponding to the second transmission gear; the third transmission gear is meshed with the second transmission gear to realize the horizontal rotation of the solar panel.
4. The transmission tower vibration response adaptive control device considering micro-topography influence according to claim 3 is characterized in that: The power supply system, vibration sensor, temperature sensor, water pump, electric valve, heater and water level meter are all electrically connected to the controller.
5. The transmission tower vibration response adaptive control device considering micro-topography influence according to claim 2 is characterized in that: The water storage tank and the plurality of water distribution tanks are connected in series in sequence through water pipes; the water pipes are installed inside the angle iron of the transmission tower component; The capacity of the water storage tank is greater than twice the sum of the capacities of the plurality of water distribution tanks.
6. The transmission tower vibration response adaptive control device considering micro-topography influence according to claim 3 is characterized in that: When the temperature is higher than 30℃ in summer or the ambient temperature is higher than 30℃, the temperature sensor in each water distribution tank sends a signal to the controller and fills or drains each water distribution tank intermittently, so that the water flows along the water pipe to cool the transmission tower components; When it is winter or the ambient temperature is below 0℃, the temperature sensor in each water distribution tank sends a signal to the controller. The controller controls the heater in each water distribution tank to heat and maintain the water temperature above 10℃, so that the ice in the area where each water distribution tank is located melts. The gravity and heat conduction effects are used to melt the ice below the area where each water distribution tank is located, and the ice on the surface of the transmission tower components is removed.
7. A method for adaptively controlling the vibration response of a transmission tower considering the influence of micro-topography, using the device for adaptively controlling the vibration response of a transmission tower considering the influence of micro-topography as claimed in any one of claims 1 to 6, characterized in that: The specific steps include: S1. Power supply system collects electricity; S2. Determine the turning points of each vibration mode of the transmission tower and set up water distribution tanks at each turning point; S3. Calculate the amplitude value of each water distribution tank when all water distribution tanks are unloaded; S4. Inject different volumes of water into the water distribution tanks according to environmental excitation or wind-induced excitation to reduce the amplitude value of each water distribution tank at the location; S5. Measure whether the amplitude value of each water distribution tank after water injection is reduced by more than 20% compared with the original amplitude value. If yes, maintain the current state; if not, continue to inject water and repeat S4 until the amplitude value at the location of each water distribution tank meets the vibration reduction requirements.
8. The method for adaptively controlling transmission tower vibration response considering micro-topography influence according to claim 7 is characterized in that: The S1 specifically includes the following sub-steps: S1.1 The initial position of the solar panel faces due east at sunrise every day. Collect solar energy for 15 minutes at the initial position and measure the current and voltage intensity converted by the solar panel at the initial position. S1.2 After 15 minutes, turn the solar panel 2° westward and collect solar energy for 1 minute. If the current and voltage intensity collected at the current position are weaker than the average current and voltage within 1 minute before the angle adjustment, turn the solar panel back to the position before the angle adjustment and continue to collect solar energy for 15 minutes. If the current and voltage intensity collected at the current position is stronger than the average current and voltage within 1 minute before the angle adjustment, then 15 minutes of solar energy will be collected at the current position; S1.3 Rotate the solar panel 2° to the west every 15 minutes and repeat S1.
2.
9. The method for adaptively controlling vibration response of a transmission tower considering the influence of micro-topography according to claim 7, characterized in that: The S2 specifically includes the following sub-steps: S2.1 Establish a numerical model of the transmission tower using finite element software and vibration sensor detection data; S2.
2. Perform modal analysis using the numerical model in S2.1 to obtain the vibration mode of the transmission tower; S2.
3. Determine the turning points of each vibration mode according to the vibration mode of the transmission tower and set up water distribution tanks at each turning point.
10. The method for adaptively controlling vibration response of a transmission tower considering the influence of micro-topography according to claim 7, characterized in that: The sub-steps of filling each water distribution tank with water under the environmental stimulus in S4 are as follows: S4.1.1 Pump the water in the water storage tank to the water distribution tank at the top of the transmission tower through a water pump and open the electric valve at the bottom of each water distribution tank; S4.1.2 Then the water distribution tank at the top of the transmission tower is filled with water from top to bottom in turn into each water distribution tank below until the water volume in each water distribution tank accounts for 20% of the volume of each tank, and the electric valve at the bottom of each water distribution tank is closed and the current state is maintained; The sub-steps of filling each water distribution tank with water under the wind-induced excitation in S4 are as follows: S4.2.1 Pump water from the bottom water tank to the water distribution tank at the top of the transmission tower. According to the amplitude values of each water distribution tank measured by S3, water is injected into each water distribution tank from top to bottom through the water distribution tank at the top of the transmission tower. Among them, the water injection amount of the water distribution tank at the maximum amplitude value accounts for 90% of the volume of the tank, and the water injection amount of the water distribution tank at the minimum amplitude value accounts for 20% of the volume of the tank. The water injection amount of other water distribution tanks is determined based on the vibration amplitude and linear interpolation is used; S4.2.2 Measure the amplitude value of each water distribution tank again after the water filling in S4.2.1 is completed. If the amplitude value decreases by more than 20% compared with that before the water filling, maintain the current state; otherwise, continue to fill water into each water distribution tank, increasing the water filling amount by 5% each time, and measure the amplitude value of each water distribution tank again until the amplitude value decreases by more than 20% compared with that before the water filling, then end the water filling and maintain the current state.