199 results about "Crosswind" patented technology

The invention relates to a vehicle control method and device, computer equipment and a storage medium. The method comprises the steps of obtaining target crosswind information of crosswind acting on a vehicle according to driving information of the vehicle, weather information of a scene where the vehicle is located and scene image information; determining a target yaw velocity of the vehicle according to the vehicle state information of the vehicle; determining a first angular velocity difference value between the target yaw velocity and an actual yaw velocity obtained through a sensor of the vehicle, and determining driving condition information of the vehicle according to the first angular velocity difference value; and target control information of the vehicle is obtained by using the first angular velocity difference value and / or the target crosswind information according to the driving working condition information of the vehicle. By adopting the method, the driving stability of the vehicle in the crosswind environment can be improved.

The invention discloses a shock wave heat loading high-temperature wind tunnel and a test method, and relates to the technical field of high-temperature wind tunnel test equipment. The shock wave heat loading high-temperature wind tunnel comprises a shock tube, a wind tunnel test system, a pressure acquisition system and an air intake and exhaust system; a high-temperature and high-pressure gas source is obtained in a secondary shock wave reflection heating mode, and the total temperature of the obtained heating gas source is higher; the high-temperature wind tunnel realizes gas heating and pressurization completely through shock wave flow, extra electric power and gas requirements are not needed, and the cost of a single test is lower; the high-temperature wind tunnel test gas is premixed, so that the components of the test gas can be accurately controlled, and the purity of the components of the test gas is ensured; the device can obtain a high-temperature high-pressure subsonic flow field and even a supersonic flow field covering wide-range working conditions, can be used for visualization test diagnosis of spray fuel atomization and spontaneous combustion processes under high-temperature crosswind, accurately characterizes physical and chemical characteristic parameters such as fuel atomization characteristics, self-ignition characteristics, flame propagation characteristics and the like, and has a wide application prospect. And test data support is provided for engine combustion chamber spray atomization combustion organization.

The invention relates to the field of unmanned aerial vehicles, and discloses a high-wind-resistance multi-rotor unmanned aerial vehicle which comprises a vehicle body and vehicle arm supports arrayed on the side face of the vehicle body, a first motor is arranged at the tail end of each vehicle arm support, a propeller part is installed on an output shaft of each first motor, and the propeller parts are driven by steering engines to change the inclination angle; when the unmanned aerial vehicle encounters strong crosswind, the resistance of the unmanned aerial vehicle to the crosswind is improved by changing the rotation angles of the corresponding propellers and the propeller parts, so that the stability of the unmanned aerial vehicle encountering the strong crosswind in the flying process is improved, the thrust vector direction is changed, and the compensation force opposite to the wind pressure direction is generated. According to the dynamic adjustment mechanism, the unmanned aerial vehicle can keep the flight path stable under the strong crosswind condition, and the problem of flight path deviation caused by the fixed thrust direction of a traditional unmanned aerial vehicle is effectively avoided.

The invention relates to the technical field of vehicle aided driving, and provides a crosswind early warning method for vehicle aided driving, and the method comprises the steps: carrying out the multi-dimensional data collection and feature extraction, carrying out the correlation analysis of crosswind interference, outputting a quantitative parameter representing the influence of crosswind interference, inputting the quantitative parameter into a risk analysis model, and carrying out the fusion calculation, thereby achieving the early warning of crosswind interference. The early warning level is determined according to a calculation result, a dynamic prediction model is constructed by integrating multi-dimensional data such as driver data, real-time wind direction data, driving data, altitude information and climate information, a risk early warning coefficient is calculated in real time, prediction precision and real-time performance are guaranteed, warning response time is prolonged through a pre-prediction means, and the early warning efficiency is improved. And the high-speed driving safety is effectively improved.

The present invention relates to equipment that can realistically reproduce various types of airflow occurring in environments such as an urban area with tall buildings or regions with mountains and valleys, thereby enabling verification of the flight safety of a multicopter-type drone. The present invention comprises: a housing that provides a tunnel-shaped test space in which a plurality of blowers, together with controllers, are installed along the longitudinal direction of both sidewalls of the interior, the ceiling, and the floor, to generate airflows such as crosswinds, updrafts, downdrafts, and vortices; and an integrated control unit that selectively or simultaneously controls some or all of the plurality of controllers installed in the housing so as to form airflows in pattern corresponding to user input or settings.

The invention provides a crosswind purging and cooling anti-wall-sticking device and centrifugal granulation equipment, and relates to the technical field of blast furnace slag waste heat recoverability, the crosswind purging and cooling anti-wall-sticking device comprises a frame and a crosswind ring assembly, an annular mounting window is arranged at the position, above a fluidized bed device, of the side wall of a granulation chamber, and the side wall of the granulation chamber is provided with an annular air inlet and an annular air outlet; the frame is arranged in the annular mounting window, the side air ring assembly is detachably arranged in the frame and is provided with an air inlet structure and an air outlet structure, the air inlet structure is used for being communicated with a cooling water mist device, and the air outlet structure faces the interior of the granulation chamber; the side air ring assembly is used for converting mixed water mist provided by the cooling water mist device into annular side wall air so as to purge and cool flying particles in the granulation chamber; granulated particles can be blown and cooled through annular side wall air generated by the side air ring assembly, so that the risk that the particles are broken and adhered to the wall is reduced, and normal operation of centrifugal granulation equipment is ensured.

The invention provides a control method and device for vehicle torque under the crosswind condition, a medium and equipment. The control method comprises the steps that state parameters and environment parameters of a target vehicle in the running process are obtained; based on the state parameters and the environment parameters, the maximum longitudinal moment of the target vehicle is calculated; on the basis of the state parameters, the required longitudinal force of the target vehicle is calculated; calculating a target longitudinal moment of the target vehicle based on the maximum longitudinal moment and the required longitudinal force; in the running process of a target vehicle, state parameters and environment parameters of a device are collected in real time, the maximum longitudinal moment capable of being output when the target vehicle does not sideslip is calculated under the crosswind condition, the required longitudinal force of the target vehicle is calculated, the maximum longitudinal moment and the required longitudinal force are synthesized to obtain the target longitudinal moment of the target vehicle, and the target longitudinal moment is calculated. The sideslip of the target vehicle is avoided, the deviation interference degree of crosswind on the target vehicle is reduced, and the driving safety and the driving stability of the target vehicle are improved.

The invention relates to the technical field of wind power generation. The invention provides an emergency yaw and automatic crosswind method and system for a wind turbine generator. The method comprises the following steps: monitoring the on-off state of a safety chain in real time, and activating an emergency power supply switching module when detecting that the safety chain is disconnected; synchronously acquiring unit vibration spectrum, impeller rotating speed, environment wind speed and cabin load distribution data, and generating dynamic risk assessment parameters based on a multi-source signal fusion algorithm; inputting a hierarchical control instruction to a yaw driver according to a comparison result of the risk assessment parameter and a preset threshold value; and in the automatic crosswind control stage, the yaw rate and the angle offset are dynamically adjusted based on the blade root bending moment real-time feedback and the wind speed change rate, so that the unit maintains the aerodynamic load balance in the non-windward state. The problems that after a safety chain of an existing wind turbine generator is disconnected, yaw capacity is completely lost, emergency crosswind protection or fault recovery cannot be achieved, and a traditional emergency yaw scheme is high in cost, complex in maintenance, slow in response, difficult to adapt to complex working conditions and the like are solved.

The invention discloses a driving risk assessment method based on a coupled vibration model, and the method comprises the steps: S1, obtaining a vehicle dynamic parameter and a geometric dimension parameter, and building a vehicle dynamic model based on the vehicle dynamic parameter and the geometric dimension parameter by employing finite element analysis software or directly calculating a dynamic differential equation set; s2, acquiring bridge vibration excitation, roughness excitation and crosswind excitation; s3, inputting the bridge vibration excitation, the roughness excitation and the crosswind excitation into the vehicle model for coupled vibration analysis, and obtaining vehicle vibration response data; and S4, based on the vehicle vibration response data, obtaining a driving safety index and a comfort index, and performing risk assessment according to preset threshold values of safety and comfort. According to the method, multi-dimensional factors such as the wind environment, the vehicle dynamic response, the bridge structure vibration characteristic and the driving comfort degree are considered, and a high-precision and high-reliability risk assessment basis can be provided for a bridge operation unit.

The invention provides an auxiliary driving strategy determination method and device, electronic equipment, a storage medium and a computer program product, relates to the technical field of computers, in particular to the technical fields of intelligent driving, map navigation and the like, and can be applied to scenes such as map navigation and the like. The specific implementation scheme is as follows: in a navigation process, combining actual wind condition data of a subsequent navigation path and detection wind condition data of a current position of a vehicle to determine fused wind condition data of the subsequent navigation path; determining the influence degree of wind on the driving safety of the vehicle according to the fused wind condition data and the pose data of the vehicle in the subsequent navigation path; and determining an auxiliary driving strategy of the risk road section in the subsequent navigation path according to the influence degree. According to the method, the wind condition is converted into the navigation reference variable from an uncontrollable factor so as to be fused into the navigation process, the risk road section and the auxiliary driving strategy for the risk road section are determined in real time, the problem of crosswind interference in the driving process is solved, and the driving safety is improved.

The invention relates to the field of vehicle control, in particular to a vehicle control method, device and equipment and a medium. When the vehicle speed is larger than the preset vehicle speed, whether the vehicle enters the crosswind area or not is actively recognized, the early warning wind power level is obtained, and the crosswind risk can be sensed in advance. Whether the crosswind pre-control function is activated or not is determined according to whether the vehicle enters the crosswind area or not and the early-warning wind power level, and the phenomenon that in the prior art, measures are taken after the vehicle deviates due to crosswind is avoided. After the pre-control function is activated, working parameters of a vehicle chassis control part are adjusted in time, for example, steering hand force becomes heavy, the height of an air spring is reduced, the rigidity is increased and the like, corresponding preparation is actively made before crosswind influences the vehicle, the stability of the vehicle is enhanced, the situation that the vehicle seriously rolls and deviates from a driving route due to the crosswind is effectively avoided, and the service life of the vehicle is prolonged. And the driving safety is improved.

A flying vehicle with folding wings that drives well on the ground and flies well in the air; controlled from inside, it changes from automotive to aircraft configuration without the operator needing to get out of the vehicle. The balance point of the vehicle is located midway between the front and back wheels, providing good handling on the road. In the aircraft configuration with wings unfolded, there is a front wing and a back wing. The incidence of the front wing is controllable, enabling the craft to rotate and take off with a center of gravity located well ahead of the rear wheels. The back wing is fitted with foldable vertical stabilizers near its wing tips. In automobile configuration the wings are folded on top of the body; the wings resemble a roof rack with large surfboards on it. Driven wheels provide motive power on the ground; ducted fans provide thrust for air travel. An autopilot system provides stability and navigation aid, particularly in bad weather or poor visibility. In the roadable configuration, filling water ballast tanks provides additional crosswind stability and crash protection. Also in a roadable configuration, the present invention may be licensed as a three-wheeled motorcycle towing a two-wheeled trailer. In its flying configuration, the invention can be licensed as a Light Sport Aircraft.

The invention discloses a traffic safety evaluation method and device in a crosswind environment, and relates to the technical field of traffic safety in the crosswind environment, and the method comprises the steps: building a geometric model and an aerodynamic-system dynamics coupling model of a to-be-evaluated vehicle according to the type of the vehicle; according to the to-be-evaluated crosswind environment, determining the driving state of the to-be-evaluated vehicle in the to-be-evaluated crosswind environment and the lateral displacement of each boundary point by using the aerodynamic-system dynamics coupling model and the geometric model; and determining a driving safety state of the to-be-evaluated vehicle in the to-be-evaluated crosswind environment based on the driving state and the lateral displacements of the plurality of boundary points. According to the method, the driving safety evaluation in the crosswind environment is carried out by determining the vehicle driving state in the crosswind environment and the lateral displacement of each boundary point, so that the efficiency, safety and rationality of the driving safety evaluation in the crosswind environment can be improved.

The invention relates to the field of unmanned aerial vehicle automatic landing control, and discloses an unmanned aerial vehicle wind-resistant landing control system which comprises an external wind-resistant structure module arranged on the periphery of an unmanned aerial vehicle landing area, and the external wind-resistant structure module adopts a fixed conical cover body design; the external windproof structure module guides external airflow into the landing area, and the size and the height of the top opening of the conical cover body are shown in the specification. A local low-wind-speed environment is constructed through the external windproof structure module, the wind speed of a landing area is effectively reduced, and the wind speed of the landing area is effectively reduced in combination with real-time estimation and accurate control of the environment perception and decision control module on the external wind speed and the tail-section attitude correction capability of the attitude correction and re-landing strategy module. The landing point alignment accuracy of the unmanned aerial vehicle under the condition of crosswind, gust or sudden wind direction change is remarkably improved, and horizontal drifting and landing failure caused by wind disturbance are effectively avoided.

The present disclosure describes methods and systems for measuring crosswind speed by optical measurement of laser scintillation. One method includes projecting radiation into a medium, receiving, over time, with a photodetector receiver, a plurality of scintillation patterns of scattered radiation, comparing cumulative a radiation intensity for each received scintillation pattern of the received plurality of scintillation patterns, and measuring a cumulative weighted average cross-movement within the medium using the compared cumulative radiation intensities.

The invention provides a train transverse offset calculation method and system based on aerodynamic simulation, and the method comprises the steps: building an aerodynamic model, and obtaining aerodynamic data of the intersection of elevated crosswind and tunnels under different working conditions; the pneumatic data comprises wind pressure data and equivalent acting force and acting moment data acting on the train mass center in the X direction, the Y direction and the Z direction; and importing the pneumatic data into a multi-rigid-body dynamic model of the motor train unit to carry out pneumatic response analysis so as to obtain the maximum transverse offset of the train under each working condition. According to the method, linear superposition is conducted on the static part and the dynamic part, the final transverse offset of the train under different working conditions is obtained, and the method for calculating the transverse offset of the train is more accurate and reliable so that the safety of the train in complex environments such as elevated crosswind and tunnel intersection can be guaranteed.

The invention provides a water spraying control optimization method and system for a new energy environmental sanitation washing and sweeping vehicle, and relates to the technical field of new energy vehicle control, the method comprises the steps: collecting the airflow velocity and direction data of a plurality of monitoring points around the vehicle, and generating an airflow field distribution diagram dynamically representing the airflow around the vehicle body in a grid form through spatial interpolation; inputting the current pressure of the water spraying system, the current action state of the flow guide air curtain system and the graph into a collaborative prediction controller, and optimally outputting a water spraying pressure adjusting instruction and a flow guide air curtain action instruction in a future interval; and finally, an embedded signal coupler calculates a driving signal to adjust the rotating speed of a water pump and the deflection angle of a grating nozzle, so that an airflow barrier adapts to crosswind and wraps a water curtain, collaborative optimization control of a water spraying system and a flow guide air curtain system of the new energy environmental sanitation cleaning and sweeping vehicle can be realized, crosswind changes are dynamically adapted, and the flow guide effect is improved. And effective dynamic wrapping of the sprayed water curtain is ensured.

The invention relates to the technical field of aviation safety, in particular to a short-distance parallel runway collision risk assessment method based on influence of front and side wind, which comprises collision risk assessment, Bayesian parameter estimation, linear regression analysis, dynamic front and side wind fitting and Monte Carlo analog simulation. The problem of small sample parameter estimation is solved by introducing a Bayesian parameter estimation method, crosswind parameters are calculated by combining linear regression analysis, positive crosswind data are fitted by applying Weibull distribution, and an influence rule of positive crosswind and an initial interval on collision probability is quantified through Monte Carlo simulation. According to the short-distance parallel runway collision risk assessment method based on the influence of the positive and crosswind, on the basis of a traditional collision model, a re-flight condition is incorporated into the model, complex scenes such as crosswind and re-flight are considered, a dynamic interval adjustment model is fused, and a new collision risk model is established; the crosswind grading minimum interval standard is provided for airline companies and air traffic control operation management, and the runway safety and the airport operation capacity are improved.

The invention relates to the technical field of unmanned aerial vehicles, in particular to a power grid inspection unmanned aerial vehicle capable of stably flying in a complex environment, which comprises an unmanned aerial vehicle body and control rods, the control rods penetrate through an inner cavity of the unmanned aerial vehicle body and are positioned in the middle of the unmanned aerial vehicle body, and the control rods on two sides of the unmanned aerial vehicle body are the same in an initial state. Fixing rods are fixedly connected to the two sides of the control rod, and when crosswind occurs, the side propellers automatically increase the inclination angle to form a pneumatic barrier, so that the aircraft body is stable; the two sets of wind shields are arranged and located at the tail end of the control rod, at the moment, the wind shields are blown by wind power to drive the control rod to move, the control rod is matched to complete change of the inclination angle of the propeller, and the wind power is automatically sensed through the wind shields and the control rod is in linkage to adjust the inclination angle of the propeller. Compared with a traditional mode of increasing the rotating speed of a propeller, the elevator has the advantages that the electric quantity loss is reduced by more than 30%, the endurance time is prolonged, and the anti-crosswind stability is achieved.

The invention discloses an aircraft landing buffer device which comprises pneumatic resistance speed reduction devices, a distributed bionic four-foot adjusting mechanism, a buffer layer and a central controller which are symmetrically arranged in the circumferential direction, and all modules achieve multi-stage buffer control through position layout and function coupling. The aerodynamic resistance speed reduction device is circumferentially arranged on the edge of the chassis, aerodynamic pre-deceleration is provided through a resistance plate with an adjustable unfolding angle, landing kinetic energy is consumed, and crosswind loads are balanced. The bionic four-foot adjusting mechanisms are distributed at the four corners of the chassis, joint rigidity and friction damping are adjusted in real time based on terrain perception, and uniform distribution of impact loads of different terrains is achieved. The buffer layer is located between the chassis and the passenger compartment, and gradient energy consumption is carried out to control the impact overload peak value. By means of intelligent angle adjustment and crosswind compensation of the pneumatic resistance device, the low-altitude speed reduction efficiency and the wind resistance capacity are improved; the gradient energy consumption design of the bionic four feet and the buffer layer solves the adaptability problem of a traditional device landing on the hard ground or the soft ground.

A method for controlling an Airborne Wind Energy System the method comprising the steps of controlling a wind engaging member, in a first flight mode, wherein the method comprises controlling a steering angle of the power kite by balancing the steering lines; and / or controlling an angle of attack of the power kite by pulling and releasing the back line and / or the front line such that the kite is steerable in a crosswind direction to generate power by unwinding the tether; and, in a second flight mode, controlling a relative distance between both wingtips of the kite and the central part of the leading edge such that an effective lift generating surface area of the power kite is reduced.

The utility model discloses an anti-wind disturbance unmanned aerial vehicle rotor wing protective cover structure, which comprises an annular cover and a lead, a plurality of groups of diversion trenches are symmetrically arranged around the surface position of the annular cover, and diversion grids are obliquely arranged in the diversion trenches. According to the utility model, the flow guide grooves and the flow guide grids are adopted, the flow guide grooves are symmetrically formed in the two sides of the surface of the annular cover, the flow guide grids are mounted in the flow guide grooves, the inclination angles of the flow guide grids are different according to different positions, and when the flow guide grooves are located above the rotor wings, the flow guide grids incline upwards, so that the flow guide grids are inclined upwards; when the flow guide grooves are located below the rotor wings, the flow guide grids incline downwards, in this way, when crosswind impact occurs, crosswind can be guided to the upper portion and the lower portion of the rotor wings through flow guide of the flow guide grids at different positions, and then it is avoided that the crosswind directly acts on the rotor wings, air flow is uneven, and flight safety is affected; the device has the advantage of crosswind diversion.

The invention provides an indirect type air cooling tower flow guiding device and an air cooling tower, the indirect type air cooling tower flow guiding device comprises an outlet flow guiding device and a tower bottom flow guiding device, the outlet flow guiding device comprises a plurality of flow guiding plates, the multiple flow guiding plates are evenly arranged at the top of an outlet of a tower body along the circumference, and flow passing holes are formed in the flow guiding plates in a penetrating mode; the tower bottom guide device is arranged in the middle of the bottom of the tower body. The flow guide plate is arranged at the top of the outlet of the tower body, and the flow passing hole is formed in the flow guide plate, so that crosswind can be guided, and strong crosswind interference can be reduced. The tower bottom flow guide device is arranged in the middle of the tower bottom to form resistance to transverse wind, so that the wind speed distribution on the outer surface of the heat exchanger finned tube bundle is more uniform. Through the synergistic effect of the outlet flow guide device and the tower bottom flow guide device, damage of crosswind to an aerodynamic field in the tower is reduced, and the problems of uneven heat exchange and low efficiency are avoided, so that the heat exchange efficiency is improved.

Various embodiments are directed to an air jet shield. The air jet shield may include a support frame configured to attach to a vehicle utilizing a set of security straps. Sets of V-shaped and concave air ducts may be horizontally and vertically coupled to the support frame, respectively. Each of the air ducts may have a decreasing cross-sectional area and include (i) an inlet that receives air from a surrounding environment during a travel of the vehicle into a headwind or crosswind and (ii) an outlet that dispenses the air received from the inlet as a free air jet. Upon entering a headwind or crosswind, the free air jet creates a wind shear causing rotation at an increased velocity. Within the free air jet and surrounding the vehicle, static air pressure and wind velocity is decreased, thereby causing a reduction in aerodynamic drag during travel.

The present invention relates to the fields of high-speed train aerodynamics and train wind resistance braking, and specifically relates to a numerical solution method for the safety critical wind speed of high-speed train wind resistance braking under the action of random crosswind loads. Starting from the safety braking control of a high-speed train equipped with a wind resistance braking device during the high-speed operation stage in a random crosswind environment, a high-speed train model equipped with a wind resistance braking device that meets different operating conditions and operating test conditions is constructed, a random wind model and a wind speed correction strategy are established. Through the multi-body dynamics simulation calculation of high-speed train wind resistance braking under the action of random crosswind loads, according to the maximum overturning coefficient of the vehicle, and considering the safety operation margin of random crosswinds, a theoretical evaluation and numerical solution method for the safety critical wind speed of wind resistance braking are scientifically given, which can provide strong reference and technical support for the development and application of the wind resistance braking systems of wheel-rail trains and high-speed maglev trains with a speed of 400+ km / h.

This invention discloses a method, system, and vehicle for adjusting body roll in crosswinds during oncoming traffic. The method acquires full-dimensional parameters and inputs them into a crosswind impact timing prediction model to predict the impact timing in advance. Based on this, it divides the adjustment into three stages: pre-tensioning, precise attitude control, and recovery, overcoming the inherent lag of existing passive feedback control's post-event intervention and achieving a leap from post-event compensation to pre-event control. The pre-tensioning stage uses a non-full pre-tensioning target value, and the recovery stage smoothly restores the vehicle according to the calibrated slope. This avoids the comfort degradation caused by existing on / off pre-adjustment technologies that apply full pre-tension throughout the entire process without a smooth recovery, effectively suppressing crosswind impact while significantly improving the driving experience. Differential adjustment of the damping / stiffness of the left and right suspensions is performed based on the bidirectional impact characteristics, overcoming the shortcomings of existing technologies that apply a one-size-fits-all approach and cannot differentiate adjustments based on the impact direction, resulting in a significant improvement in attitude control accuracy.

This invention relates to a method, device, and medium for intelligent assisted driving instability early warning of vehicles in windy and rainy conditions. The method involves collecting rainfall intensity, crosswind speed, and vehicle driving state parameters; querying a CFD wind-rain coupled aerodynamic load database to obtain corresponding aerodynamic six-component force data; inputting the aerodynamic six-component force data as external disturbances into the vehicle's multibody dynamics model, simulating and outputting vehicle state response parameters; calculating environmental impact parameters based on rainfall intensity and crosswind speed, and dynamically correcting the preset normal thresholds of various instability indicators based on these environmental impact parameters to obtain dynamic instability thresholds under windy and rainy conditions; assigning weights to various instability indicators according to the vehicle's current driving conditions, and calculating a comprehensive instability index based on the vehicle state response parameters and dynamic instability thresholds; determining the instability level based on the comprehensive instability index and calculating the remaining stabilization time. Compared with existing technologies, this invention has advantages such as high accuracy, strong adaptability, and good real-time performance.

The invention discloses an air-cooled heat exchange system adaptable to crosswind and a control method thereof.The system comprises an air-cooled heat exchanger, a differential pressure sensor, a fan and two temperature sensors, the fan is arranged on the outer side or the inner side of the air-cooled heat exchanger, and the fan can form a forward working mode or a reverse working mode; the pressure difference sensor detects the air pressure difference between the external environment air pressure outside the outer side of the air-cooled heat exchanger and the air pressure inside the air-cooled heat exchanger, the two temperature sensors detect the temperature of the inlet end and the outlet end of the air-cooled heat exchanger respectively, or one temperature sensor detects the temperature of the outlet end of the air-cooled heat exchanger, and the other temperature sensor detects the temperature inside the air-cooled heat exchanger. The differential pressure sensor, the air-cooled heat exchanger outlet end temperature sensor, the air-cooled heat exchanger inlet end temperature sensor and the fan are electrically connected with the control system. In the control method, the control system controls the fan to work according to the air pressure difference and the temperature difference of the two sensors. According to the invention, the system can run stably when encountering crosswind.

The invention discloses a composite peak cooling wind-resistant air cooling system which comprises a supporting structure, and a draught fan unit, a dry type air cooling precooler heat exchanger, a humidifying perforated plate and a high dynamic pressure chamber are installed on the supporting structure. The fan unit is arranged at the bottom of the dry type air cooling precooler heat exchanger; the humidifying perforated plate is arranged on the peripheral side of the fan unit in a surrounding manner and is used for decelerating, humidifying and cooling passing air; the high dynamic pressure chamber is arranged on the top of the dry type air cooling precooler heat exchanger and used for increasing energy of air passing through the dry type air cooling precooler heat exchanger so that the air can be rapidly exhausted upwards. Air is pretreated through the humidifying perforated plate, the temperature is reduced, the speed is reduced, and the influence of environmental crosswind on the fan is reduced; meanwhile, due to the design of the high dynamic pressure chamber, the exhaust dynamic pressure is effectively improved, hot air backflow is prevented, the cooling effect of supercritical carbon dioxide is stably maintained in the high-temperature and crosswind environment, and the operation efficiency of a power generation system is improved.

The invention relates to the technical field of bridge engineering, and discloses a multi-dimensional damping wind-resistant modernized road and bridge device which comprises a bridge body, a wind-resistant groove formed in the bottom of the bridge body, a mounting part mounted outside the wind-resistant groove and used for mounting a wind-resistant tool, and a dynamic balance part mounted on the mounting part and used for mounting the wind-resistant tool. A dynamic balance part in the device can conduct self-adaptive adjustment according to the multi-dimensional wind direction, and when the device faces crosswind, an arc surface structure at the bottom of a windward plate generates upward thrust under the action of wind power and turns over with a rotating shaft as the axis to drive a balance arm to change the included angle between the balance arm and the bridge body; when an included angle is formed between the wind direction and the bridge body, the swing blades are under the action of wind power, the balance arms are driven to turn over on the round sleeves, the gravity center of the bridge body is adjusted, the stress stability is enhanced, the wind load in the complex wind direction is effectively dealt with, and the wind resistance of the bridge is improved.