Direct air cooling unit backpressure optimization system based on multi-source parameter cooperative regulation and control method

Abstract

The invention discloses a direct air cooling unit backpressure optimization system based on multi-source parameter cooperative regulation and control. The system comprises a multi-source meteorological sensing module; the vortex pre-generation execution module is used for dividing windward side fans into three groups; the thermal plume form capturing module is composed of an infrared thermal imaging array erected at the position 20 m away from the top of the air cooling island; the physical quantity decision engine adjusts the power proportion of the group C and adjusts the blade attack angle of the group A; the anti-turbulence protection module is started when the oscillation frequency of the thermal plume is greater than a threshold value; and an energy recovery module. According to the method, vortex generation and real-time thermal plume feedback of the three sets of fans are scheduled through turbulent flow prediction, back pressure fluctuation caused by transverse wind and hot backflow is effectively counteracted, and the stability of the unit is remarkably improved; the overall heat dissipation uniformity is improved by dynamically adjusting the blade attack angle and power distribution; the anti-turbulence protection module recycles mechanical vibration energy as electric energy for vortex discharge operation, and meanwhile, the energy recycling module realizes secondary utilization of energy.

Description

Technical Field

[0001] This invention relates to the technical field of air-cooled islands, and in particular to a back pressure optimization system and control method for direct air-cooled units based on multi-source parameter coordinated regulation. Background Technology

[0002] Direct air-cooled units are widely used in coal-rich but water-scarce regions due to their water-saving advantages, but their back pressure sensitivity is much higher than that of wet-cooled units. For every 1 kPa increase in back pressure, the unit's coal consumption increases by 1.0-1.5 g / kWh. Under disturbances such as sudden changes in ambient wind and temperature, back pressure fluctuations can reach ±3 kPa or more.

[0003] Existing air-cooled units rely heavily on empirical models with fixed or single meteorological parameters for back pressure control. These models cannot respond in real time to the complex coupling effects of wind direction, turbulence, and thermal plumes, resulting in poor system immunity and large back pressure fluctuations, which in turn affect heat exchange efficiency and unit operational stability. Furthermore, traditional systems lack effective eddy current pretreatment and energy recovery methods, failing to fully utilize environmental energy and resulting in high energy consumption. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: In a first aspect, the present invention provides a back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control, comprising: Multi-source meteorological sensing module: includes lidar array, microwave radiometer, ground electric field sensor, ultrasonic anemometer and infrared thermal imager, used to collect three-dimensional wind speed, atmospheric temperature gradient, electrostatic field changes and turbulent kinetic energy within 1km around the air-cooled island; Vortex pre-generation execution module: Divides the windward side fan into three groups: Group A: Equipped with a blade installation angle adjustment mechanism to generate a counterclockwise vortex; Group B: Configure a speed damping controller to form a low-speed buffer zone; Group C: A vortex generator is installed on the leading edge of the blade to generate a clockwise main vortex; Thermal plume morphology capture module: consists of an infrared thermal imaging array mounted 20m above the air-cooled island, which outputs the thermal plume deflection angle and diffusion half-width in real time; Physical quantity decision engine: Adjusts the power ratio of group C based on the comparison result of the thermal plume deflection angle and the preset threshold, and adjusts the blade angle of attack of group A based on the comparison result of the diffusion half-width and the preset threshold; Anti-turbulence protection module: includes a hydraulic damper and a supercapacitor connected to the fan bearing, which is activated when the thermal plume oscillation frequency exceeds a threshold. Energy recovery module: includes a vertical axis wind turbine, whose output is hardwired to the wind turbine inverter to adjust the wind turbine power in real time.

[0006] As a preferred embodiment of the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control described in this invention, the multi-source meteorological sensing module has a lidar array sampling frequency of 10Hz, a microwave radiometer accuracy of ±0.5℃ / 100m for retrieving the vertical temperature difference of the atmospheric convective layer, and a time lead of ≥15min for the geoelectric field sensor to warn of strong convective winds.

[0007] As a preferred embodiment of the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control described in this invention, wherein the power allocation of the three sets of fans in the vortex pre-generation execution module meets the following requirements: Group A: The power distribution of Group A is affected by turbulent kinetic energy, which represents the degree of wind turbulence. The greater the turbulent kinetic energy, the stronger the impact of the crosswind on the air-cooled island, and the stronger the counterclockwise vortex is needed to resist it. The power of Group A should be negatively correlated with the turbulent kinetic energy. In actual use, when the turbulent kinetic energy is too high, simply increasing the power has limited effect, so an exponential decay function is adopted. Group B: Power distribution is affected by the wind direction angle. When the wind direction is close to 45° with the axis of the air-cooled island, the oblique wind is most likely to cause heat recirculation. It is necessary to expand the coverage of the low-speed buffer zone. The power of Group B should be adjusted when the wind direction angle is approximately 45°. The value is maximum at time and decreases with angular deviation, so an exponential decay function is used; Group C: Power distribution is affected by the vertical temperature difference of the atmosphere. The vertical temperature difference reflects atmospheric stability. The larger the vertical temperature difference, the stronger the thermal buoyancy effect, and the faster the hot plume rises. It is necessary to enhance the inner vortex to gather hot air. The power of Group C is positively correlated with the vertical temperature difference of the atmosphere. To ensure that the total power of the three power groups does not exceed the maximum allowable power of the wind turbine group, the power is allocated according to the power ratio of the three wind turbine groups.

[0008] As a preferred embodiment of the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control described in this invention, the physical quantity decision engine executes the following non-model-based logic: When the thermal plume deflection angle is greater than the threshold, the power ratio of group C increases; the total width of the infrared array is... Without deflection, the center of the thermal plume should be located at the geometric center of the array, and the horizontal distance between the actual centroid and the theoretical center is... The deflection angle of the thermal plume was determined using a right-angled trigonometric model. ; When the diffusion half-width is less than the threshold, the heat dissipation is uneven. The angle of attack of the blades in group A is adjusted to expand the outer vortex and enhance heat dissipation. The highest temperature on the central axis is Horizontal distance from the center line The temperature at that location is Determine the effective boundary threshold. By substituting the effective boundary threshold into the distribution model, the diffusion half-width is obtained.

[0009] As a preferred embodiment of the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control described in this invention, the anti-turbulence protection module includes a vibration energy-to-electric energy conversion unit. The mechanical vibration energy absorbed by the hydraulic damper is stored in a supercapacitor via a piezoelectric converter. When the capacitor charge reaches a threshold, the eddy current generator is triggered to release eddies.

[0010] As a preferred embodiment of the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control described in this invention, wherein: the vortex discharge triggering condition is a capacitor voltage ≥ 48V, and the vortex discharge duration is... Depend on Confirmed, among which The frequency of the thermal plume oscillation is given by the blade angle. adjust.

[0011] As a preferred embodiment of the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control described in this invention, wherein: in the energy recovery module, the blades of the vertical axis wind turbine are made of heat-resistant carbon fiber composite material, with an operating temperature range of -30℃ to 150℃ and a tip speed ratio... Keep it between 2.5 and 4.0.

[0012] Secondly, this invention provides a back pressure optimization control method for direct air-cooled units based on multi-source parameter coordinated regulation, including: S1. Predict wind field changes in the next 30 minutes using multi-source meteorological sensing units; S2. Drive three sets of fans to generate the target vortex according to the power distribution formula; S3. Real-time analysis of thermal plume deflection angle and diffusion half-width; S4. When the thermal plume deflection angle is greater than the threshold, increase the power of group C; when the diffusion half-width is less than the threshold, increase the angle of attack of group A. S5. Hydraulic damping is activated when the oscillation frequency is detected to be greater than the threshold. S6. The vibration energy is converted into electrical energy and stored. The capacitor discharges eddy currents after it is fully charged. S7. The hot plume drives the wind turbine to generate electricity, and the output power is proportionally offset to the power consumption of the wind turbine.

[0013] Thirdly, embodiments of the present invention provide a computer device, including a memory and a processor, wherein the memory stores a computer program, and the computer program, when executed by the processor, implements any module of the direct air-cooled unit back pressure optimization system based on multi-source parameter coordinated control as described in the first aspect of the present invention.

[0014] Fourthly, embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, it implements the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control as described in the first aspect of the present invention.

[0015] The beneficial effects of this invention are: By predictively scheduling turbulence to generate vortices in three sets of fans and providing real-time feedback on thermal plumes, back pressure fluctuations caused by lateral wind and thermal recirculation are effectively offset, significantly improving unit stability. By dynamically adjusting the blade angle of attack and power distribution, the thermal plume diffuses more fully, avoiding local overheating, improving overall heat dissipation uniformity, thereby reducing back pressure and improving heat exchange efficiency. The anti-turbulence protection module recovers mechanical vibration energy as electrical energy to power the vortex discharge operation, while the energy recovery module converts the kinetic energy of the thermal plume into electrical energy to offset part of the fan power consumption, realizing the secondary utilization of energy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a system architecture diagram of the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control proposed in this invention; Figure 2 This is a flow chart of the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control proposed in this invention. Figure 3 This is a flowchart of the back pressure optimization method for direct air-cooled units based on multi-source parameter coordinated control proposed in this invention. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0019] Reference Figure 1-3 This invention provides a back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control, comprising: Multi-source meteorological sensing module: includes lidar array, microwave radiometer, ground electric field sensor, ultrasonic anemometer and infrared thermal imager, used to collect three-dimensional wind speed, atmospheric temperature gradient, electrostatic field changes and turbulent kinetic energy within 1km around the air-cooled island; In the multi-source meteorological sensing module, the lidar array sampling frequency is 10Hz, the microwave radiometer inverts the vertical temperature difference of the atmospheric convective layer with an accuracy of ±0.5℃ / 100m, the geoelectric field sensor provides a warning time lead of ≥15min for strong convective winds, and the turbulence information is predicted through a CFD simulation engine. Vortex pre-generation execution module: Divides the windward side fan into three groups: Group A (outer fan): Equipped with a blade installation angle adjustment mechanism to generate a counterclockwise vortex; Group B (intermediate fan): Equipped with a speed damping controller to form a low-speed buffer zone; Group C (inner fan): A vortex generator is installed on the leading edge of the blades to generate a clockwise main vortex; In the vortex pre-generation execution module, the power allocation of the three sets of wind turbines meets the following requirements: Group A: The power distribution in Group A is affected by turbulent kinetic energy, which is ( The tidal energy represents the degree of wind turbulence. The greater the turbulent kinetic energy, the stronger the impact of the crosswind on the air-cooled island, and the stronger the counterclockwise vortex is needed to resist it. The power of group A should be negatively correlated with the turbulent kinetic energy (because more power is needed to generate vortices under high turbulence). In actual use, when the turbulent kinetic energy is too high, simply increasing the power has limited effect. Therefore, an exponential decay function is adopted, and its specific expression is as follows: , As an exponent, based on wind tunnel test data fitting, it was found that... The exponent 0.7 exhibits a power-law relationship with the required power, achieving the optimal balance between turbulence suppression and energy consumption. Therefore, the exponent... The recommended value is 0.7; Group B: Power distribution affected by wind direction angle The influence of the wind direction and the angle between the axis of the air-cooled island When the angle approaches 45°, the oblique wind is most likely to cause thermal recirculation, requiring an expansion of the coverage area of ​​the low-speed buffer zone (Group B). The power of Group B should be such that the wind angle is approximately [missing information]. The value is maximum at time and decreases with angular deviation, using an exponential decay function, the specific expression of which is as follows: Actual measurements show that At a value of 0.2, the power decreases by 18% for every 1° deviation. Group C: Power distribution is affected by the vertical temperature difference in the atmosphere ( The vertical temperature difference reflects atmospheric stability. The greater the vertical temperature difference (colder at the top and warmer at the bottom), the stronger the thermal buoyancy effect, and the faster the hot plume rises. This requires strengthening the inner vortex (Group C) to gather hot air. The power of Group C is positively correlated with the vertical temperature difference of the atmosphere, and its specific expression is as follows: ,typical The range is 1-10℃ / 100m, therefore it can be linearly scaled. Achieve normalization of the interval [0.1,1]; To ensure that the total power of the three power groups does not exceed the maximum allowable power of the wind turbine group, the power is allocated according to the power ratio of the three wind turbine groups; : : : :

[0020] in: For turbulent kinetic energy, The angle between the wind direction and the axis of the air-cooled island. This refers to the vertical temperature difference in the atmosphere. Thermal plume morphology capture module: Consists of an infrared thermal imaging array mounted 20m above the air-cooled island, which outputs the thermal plume deflection angle in real time. and diffusion half-width ; Due to uneven heat dissipation on the surface of the air-cooled island or the effect of crosswinds, the central axis of the rising hot airflow deviates from the vertical direction. The centroid position of the high-temperature zone represents the actual central axis of the hot plume. Therefore, the centroid shift of the temperature distribution is captured by the top infrared array, and the horizontal coordinate of the temperature weighted centroid is... Temperature-weighted average method The numerator is the weighted sum of the temperatures of each pixel and their horizontal axes, and the denominator is the total temperature weight; the total width of the infrared array is... Without deflection, the center of the thermal plume (theoretical center location) should be located at the geometric center of the array. , The total width of the array is given by the horizontal distance between the actual centroid and the theoretical center. , The deflection angle of the thermal plume was determined using a right-angled trigonometric model. ; ; in Installation height of the infrared thermal imaging array; The highest temperature on the central axis is Horizontal distance from the center line The temperature at that location is , , The standard deviation represents the degree of diffusion. The larger the value, the more significant the diffusion; determine the effective boundary threshold. Wind tunnel tests revealed that when the temperature drops to... At 80%, this location overlaps with the visualized plume boundary by 95%, therefore an effective boundary threshold is recommended. By substituting the effective boundary threshold into the distribution model, To obtain the diffusion half-width,

[0021] Physical quantity decision engine: Adjusts the power ratio of group C based on the comparison result of the thermal plume deflection angle and the preset threshold, and adjusts the blade angle of attack of group A based on the comparison result of the diffusion half-width and the preset threshold; When the thermal plume deflection angle is greater than the threshold, the power ratio of group C increases; the thermal plume deflection angle can be determined through wind tunnel testing. The minimum sensitivity threshold is 3°, and after more than 200 impact tests, it was determined that each 1° increase in sensitivity increases the power by 5%. When the diffusion half-width is less than the threshold, heat dissipation is uneven. The angle of attack of blades in group A is adjusted to expand the outer vortex and enhance heat dissipation. The change in angle of attack and the diffusion gap are fitted based on measured data. The relationship is linear, and the specific expression is as follows: , , These are coefficients, based on jet diffusion angle test recommendations. =1.5° =0.2° / m, Set a threshold for the diffusion half-width; Anti-turbulence protection module: includes a hydraulic damper and a supercapacitor connected to the fan bearing, which is activated when the thermal plume oscillation frequency is greater than the threshold (2Hz is recommended); The anti-turbulence protection module includes a vibration energy-to-electric energy conversion unit. The mechanical vibration energy absorbed by the hydraulic damper is stored in a supercapacitor via a piezoelectric converter. When the capacitor charge reaches a threshold, the eddy current generator is triggered to release eddy currents. By converting vibration energy into electrical energy and storing it, the eddy current release operation is triggered by electrical energy to inject a reverse shear layer into the main flow, actively destroying the formed Karman vortex street structure and breaking large-scale vortex cores into micro-scale turbulence. This process converts vortex energy into heat energy dissipation, eliminates low-frequency resonance, and suppresses heat backflow. The eddy discharge trigger condition is a capacitor voltage ≥ 48V and a eddy discharge duration of [missing information]. Depend on Confirmed, among which The frequency of the thermal plume oscillation is given by the blade angle. Adjustment, capacitor voltage When the voltage reaches 48V, energy accumulation saturates (48V is the voltage value of the minimum energy required to destroy electric eddy currents, as measured experimentally). At this point, the eddy current generator is triggered to release eddy currents; the duration of eddy current release is as follows: Adjustments are made dynamically every second. This represents excess energy exceeding the threshold; the higher the voltage, the greater the excess energy. This excess energy needs to be released by extending the eddy discharge time. The thermal plume oscillation frequency... The vortex shedding rate reflects the short lifespan of vortices due to high-frequency oscillations, requiring short-term strong vortex relief, while low-frequency oscillations result in longer vortex durations, requiring long-term continuous intervention. A coefficient of 0.1 was obtained through fitting data from 47 wind tunnel tests. The vortex relief intensity increases with increasing voltage, and the blade angle is adjusted accordingly. adjust, The reference vortex attack angle (the minimum effective angle determined by wind tunnel testing). The intensity of turbulence is reflected (the higher the voltage, the more intense the vibration). Strong turbulence requires a larger negative angle of attack to enhance the reverse shear layer. Through multiple sets of experiments, the negative offset is increased by 0.033 for every 1V increase in voltage to enhance the reverse shear layer. Example as follows: When the capacitor voltage rises to 52V and the thermal plume oscillation frequency is 3Hz, the duration of eddy discharge is... Seconds, while the blade angle is adjusted to ; Energy recovery module: includes a vertical axis wind turbine, whose output is hardwired to the wind turbine inverter, according to the formula. ( ), The theoretical power consumption of fan B is... For power generation capacity, The overall efficiency coefficient ( Real-time adjustment of intermediate fan power; In the energy recovery module, the blades of the vertical axis wind turbine are made of heat-resistant carbon fiber composite material, with an operating temperature range of -30℃ to 150℃ and a tip speed ratio of [missing information]. The temperature-resistant carbon fiber composite material, with a viscosity controlled between 2.5 and 4.0, comprises: a matrix polyimide resin with 10 wt% siloxane modifier; reinforcing fiber: 60% T800 carbon fiber by volume; and an interface layer of vapor-deposited boron nitride coating (200 nm thick); wherein the impact toughness at -30℃ is ≥30 J / cm. 2 The thermal weight loss at 150℃ / 100h is ≤0.5%; real-time monitoring of thermal plume velocity. According to the formula Calculate the target rotational speed, (where The angular velocity of the windmill. Where is the blade radius. (For the thermal plume velocity), adjust the generator load torque to make the actual When the target value is reached, When <2.5, increase torque and decrease speed. When the torque is greater than 4.0, the torque is reduced and the speed is increased.

[0022] This embodiment also provides a back pressure optimization control method for direct air-cooled units based on multi-source parameter coordinated regulation, including: S1. Predict wind field changes in the next 30 minutes using multi-source meteorological sensing units; S2. Drive three sets of fans to generate the target vortex according to the power distribution formula; S3. Real-time analysis of thermal plume deflection angle and diffusion half-width; S4. When the thermal plume deflection angle is greater than the threshold, increase the power of group C; when the diffusion half-width is less than the threshold, increase the angle of attack of group A. S5. Hydraulic damping is activated when the oscillation frequency is detected to be greater than the threshold. S6. The vibration energy is converted into electrical energy and stored. The capacitor discharges eddy currents after it is fully charged. S7. The hot plume drives the wind turbine to generate electricity, and the output power is proportionally offset to the power consumption of the wind turbine.

[0023] This embodiment also provides a computer device applicable to the back pressure optimization system of a direct air-cooled unit based on multi-source parameter coordinated control, including: a memory and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to realize the back pressure optimization system of a direct air-cooled unit based on multi-source parameter coordinated control as proposed in the above embodiment.

[0024] The computer device can be a terminal, comprising a processor, memory, communication interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, carrier networks, NFC (Near Field Communication), or other technologies. The display screen can be an LCD screen or an e-ink screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad on the computer device's casing, or an external keyboard, touchpad, or mouse.

[0025] This embodiment also provides a storage medium storing a computer program that, when executed by a processor, implements the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control as proposed in the above embodiments. The storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Red-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0026] In summary, this invention effectively counteracts back pressure fluctuations caused by lateral wind and heat return flow by predictively scheduling three sets of fan vortex generation and real-time thermal plume feedback, significantly improving unit stability. Simultaneously, by dynamically adjusting blade angle of attack and power distribution, the thermal plume diffuses more fully, avoiding localized overheating, improving overall heat dissipation uniformity, thereby reducing back pressure and enhancing heat exchange efficiency. Furthermore, the anti-turbulence protection module recovers mechanical vibration energy as electrical energy to power the vortex discharge operation, while the energy recovery module converts thermal plume kinetic energy into electrical energy to offset part of the fan power consumption, achieving secondary energy utilization.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control, characterized in that: include: Multi-source meteorological sensing module: includes lidar array, microwave radiometer, ground electric field sensor, ultrasonic anemometer and infrared thermal imager, used to collect three-dimensional wind speed, atmospheric temperature gradient, electrostatic field changes and turbulent kinetic energy within 1km around the air-cooled island; Vortex pre-generation execution module: Divides the windward side fan into three groups: Group A: Equipped with a blade installation angle adjustment mechanism to generate a counterclockwise vortex; Group B: Configure a speed damping controller to form a low-speed buffer zone; Group C: A vortex generator is installed on the leading edge of the blade to generate a clockwise main vortex; Thermal plume morphology capture module: consists of an infrared thermal imaging array mounted 20m above the air-cooled island, which outputs the thermal plume deflection angle and diffusion half-width in real time; Physical quantity decision engine: Adjusts the power ratio of group C based on the comparison result of the thermal plume deflection angle and the preset threshold, and adjusts the blade angle of attack of group A based on the comparison result of the diffusion half-width and the preset threshold; Anti-turbulence protection module: includes a hydraulic damper and a supercapacitor connected to the fan bearing, which is activated when the thermal plume oscillation frequency exceeds a threshold. Energy recovery module: includes a vertical axis wind turbine, whose output is hardwired to the wind turbine inverter to adjust the wind turbine power in real time.

2. The back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control as described in claim 1, characterized in that: In the multi-source meteorological sensing module, the lidar array sampling frequency is 10Hz, the microwave radiometer inverts the vertical temperature difference of the atmospheric latitudinal layer with an accuracy of ±0.5℃ / 100m, and the ground electric field sensor provides a time lead of ≥15min for turbulence warning.

3. The back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control according to claim 2, characterized in that: In the vortex pre-generation execution module, the power allocation of the three sets of wind turbines meets the following requirements: Group A: The power distribution of Group A is affected by turbulent kinetic energy, which represents the degree of wind turbulence. The greater the turbulent kinetic energy, the stronger the impact of the crosswind on the air-cooled island, and the stronger the counterclockwise vortex is needed to resist it. The power of Group A should be negatively correlated with the turbulent kinetic energy. In actual use, when the turbulent kinetic energy is too high, simply increasing the power has limited effect, so an exponential decay function is adopted. Group B: Power distribution is affected by the wind direction angle. When the wind direction is close to 45° with the axis of the air-cooled island, the oblique wind is most likely to cause heat recirculation. It is necessary to expand the coverage of the low-speed buffer zone. The power of Group B should be adjusted when the wind direction angle is approximately 45°. The value is maximum at time and decreases with angular deviation, so an exponential decay function is used; Group C: Power distribution is affected by the vertical temperature difference of the atmosphere. The vertical temperature difference reflects atmospheric stability. The larger the vertical temperature difference, the stronger the thermal buoyancy effect, and the faster the hot plume rises. It is necessary to enhance the inner vortex to gather hot air. The power of Group C is positively correlated with the vertical temperature difference of the atmosphere. To ensure that the total power of the three power groups does not exceed the maximum allowable power of the wind turbine group, the power is allocated according to the power ratio of the three wind turbine groups.

4. The back pressure optimization system and control method for direct air-cooled units based on multi-source parameter coordinated regulation according to claim 3, characterized in that: The physical quantity decision engine executes the following non-model-based logic: When the thermal plume deflection angle is greater than the threshold, the power ratio of group C increases; The total width of the infrared array is Without deflection, the center of the thermal plume should be located at the geometric center of the array, and the horizontal distance between the actual centroid and the theoretical center is... The deflection angle of the thermal plume was determined using a right-angled trigonometric model. ; When the diffusion half-width is less than the threshold, the heat dissipation is uneven. The angle of attack of the blades in group A is adjusted to expand the outer vortex and enhance heat dissipation. The highest temperature on the central axis is Horizontal distance from the center line The temperature at that location is Determine the effective boundary threshold. By substituting the effective boundary threshold into the distribution model, the diffusion half-width is obtained.

5. The back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control according to claim 1, characterized in that: The anti-turbulence protection module includes a vibration energy to electrical energy conversion unit. The mechanical vibration energy absorbed by the hydraulic damper is stored in a supercapacitor via a piezoelectric converter. When the capacitor charge reaches a threshold, the eddy current generator is triggered to release eddies.

6. The back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control according to claim 5, characterized in that: The eddy discharge triggering condition is a capacitor voltage ≥ 48V and an eddy discharge duration. Depend on Confirmed, among which The frequency of the thermal plume oscillation is given by the blade angle. adjust.

7. The back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control according to claim 6, characterized in that: In the energy recovery module, the blades of the vertical axis wind turbine are made of heat-resistant carbon fiber composite material, with an operating temperature range of -30℃ to 150℃ and a tip speed ratio of [missing information]. Keep it between 2.5 and 4.

0.

8. A back pressure optimization control method for direct air-cooled units based on multi-source parameter coordinated regulation, based on the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated regulation as described in any one of claims 1-7, characterized in that: include: S1. Predict wind field changes in the next 30 minutes using multi-source meteorological sensing units; S2. Drive three sets of fans to generate the target vortex according to the power distribution formula; S3. Real-time analysis of thermal plume deflection angle and diffusion half-width; S4. When the thermal plume deflection angle is greater than the threshold, increase the power of group C; when the diffusion half-width is less than the threshold, increase the angle of attack of group A. S5. Hydraulic damping is activated when the oscillation frequency is detected to be greater than the threshold. S6. The vibration energy is converted into electrical energy and stored. The capacitor discharges eddy currents after it is fully charged. S7. The hot plume drives the wind turbine to generate electricity, and the output power is proportionally offset to the power consumption of the wind turbine.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, it implements the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, it implements the back pressure optimization system for direct air-cooled units based on multi-source parameter coordinated control as described in any one of claims 1-7.

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