Cable heat dissipation system and method

Abstract

The application relates to a cable heat dissipation system and method, the system comprising a liquid cooling system corresponding to a liquid cooling heat dissipation mode, an air cooling system corresponding to an air cooling heat dissipation mode, a detection device and a controller; the detection device is used for acquiring cable operation information of the cable in a current working period; the controller is used for determining a target heat dissipation mode of the cable in the current working period based on the cable operation information; in the case that the target heat dissipation mode comprises the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, a heat dissipation sequence matched with the cable operation information is determined; the heat dissipation sequence is used for representing respective enabling sequences of the liquid cooling heat dissipation mode and the air cooling heat dissipation mode; in the case that the target heat dissipation mode is operated in the heat dissipation sequence in the current working period, the operation state of the cable in a next working period is predicted based on a state prediction model matched with historical state information of the cable; the target heat dissipation mode is adjusted based on the operation state, so that the cable is heat dissipated in the next working period based on the adjusted target heat dissipation mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power systems and thermal management, in particular to a cable heat dissipation system and method. BACKGROUND

[0002] In order to improve the carrying capacity of the cable, a double split cable (i.e. a parallel cable) can be used to transmit power to improve the transmission capacity. When power transmission is performed by using the double split cable, the current imbalance of the two sub-cables in parallel operation caused by the line itself may occur, such as line differentiation caused by path length and manufacturing process difference, impedance asymmetry caused by electromagnetic coupling relationship between multi-cable, and the like. When the double split cable works under the condition of current imbalance, the heat dissipation capacity of the double split cable is affected. Cable heat dissipation is a key problem in power engineering, especially in high-power cable transmission. The generation and accumulation of heat will affect the operation efficiency and service life of the cable, and may cause safety hazards. Therefore, it is a key problem in power engineering to research and implement an efficient cable heat dissipation scheme.

[0003] In the traditional technology, the cable can be cooled by using a natural air cooling heat dissipation mode. However, the heat dissipation efficiency of the above heat dissipation mode is low and does not conform to the actual operation condition of the cable, so that the heat dissipation accuracy of the cable is not high. SUMMARY

[0004] Therefore, it is necessary to provide a cable heat dissipation system and method capable of improving the heat dissipation efficiency and accuracy of the cable.

[0005] In a first aspect, the present application provides a cable heat dissipation system. The cable heat dissipation system comprises a liquid cooling system corresponding to a liquid cooling heat dissipation mode, an air cooling system corresponding to an air cooling heat dissipation mode, a detection device, and a controller. The detection device is configured to obtain cable operation information of the cable in a current working period. The controller is configured to determine a target heat dissipation mode of the cable in the current working period based on the cable operation information, determine a heat dissipation sequence matched with the cable operation information in the case that the target heat dissipation mode comprises the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, and the heat dissipation sequence is used to represent the respective starting sequence of the liquid cooling heat dissipation mode and the air cooling heat dissipation mode. In the case that the target heat dissipation mode is operated in the heat dissipation sequence in the current working period, the controller is configured to predict an operation state of the cable in a next working period based on a state prediction model matched with historical state information of the cable, and adjust the target heat dissipation mode based on the operation state, so as to perform heat dissipation on the cable in the next working period based on the adjusted target heat dissipation mode.

[0006] In one embodiment, the detection device comprises a humidity sensor and a temperature sensor; the humidity sensor is configured to collect the ambient humidity of the cable in the current working period; the temperature sensor is configured to collect the cable temperature of the cable in the current working period; the controller is further configured to determine the heat dissipation mode matched with the cable temperature and the ambient humidity as the target heat dissipation mode of the cable in the current working period based on the mapping relationship between the preset temperature range, the preset humidity range and the heat dissipation mode.

[0007] In one embodiment, the controller is further configured to: in the case where the target heat dissipation mode comprises the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, if the ambient humidity is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold, determine that the air cooling heat dissipation mode has a higher activation sequence than the liquid cooling heat dissipation mode; and in the case where the current working period runs in the air cooling heat dissipation mode for a preset time length, if the temperature difference between the re-detected cable temperature and the cable temperature in the current working period is less than or equal to a temperature difference threshold, control the liquid cooling system to start.

[0008] In one embodiment, the controller is further configured to perform any one of the following: the first item: based on a state prediction model matched with historical state information corresponding to the cable, analyze the cable operation information of the cable in the current working period, and predict the operation state of the cable in the next working period; the historical state information comprises historical operation information in a historical working period, and the state prediction model is trained based on the historical operation information; the second item: based on a state prediction model matched with historical state information corresponding to the cable, analyze the environmental parameters and energy consumption of the cable in the current working period, and predict the operation state of the cable in the next working period; wherein the historical state information comprises historical energy consumption in a historical working period and historical environmental parameters corresponding to the historical energy consumption, and the state prediction model is trained based on the historical energy consumption and the historical environmental parameters.

[0009] In one embodiment, the cable operation information comprises the cable temperature; the controller is further configured to: determine the temperature trend between the cable temperature corresponding to the operation state and the cable temperature in the current working period; in the case where the temperature trend presents an upward trend, increase the heat dissipation rate of the liquid cooling system and the air cooling system; and in the case where the temperature trend presents a downward trend, control the liquid cooling system to stop running.

[0010] In one embodiment, the controller is further configured to: in the case where the target heat dissipation mode comprises the liquid cooling heat dissipation mode, if the temperature trend presents a downward trend, reduce the heat dissipation rate of the liquid cooling system; and in the case where the target heat dissipation mode comprises the liquid cooling heat dissipation mode, if the temperature trend presents an upward trend, control the air cooling system to start and increase the heat dissipation rate of the liquid cooling system.

[0011] In an embodiment, the liquid cooling system comprises cooling liquid and a radiator, the air cooling system comprises a fan, a distance between the fan and the cable is less than or equal to a distance threshold, or a distance between the fan and the radiator is less than or equal to the distance threshold; the detection device comprises an environmental sensor; the environmental sensor is configured to acquire an environmental air pressure and an altitude of the cable in a current working period; the cable operation information comprises the altitude and the environmental air pressure; the controller is further configured to, in a case where the target cooling mode comprises the liquid cooling mode and the air cooling mode, control the liquid cooling system to increase a flow rate and / or a flow speed of the cooling liquid and / or control the air cooling system to increase a rotation speed and / or a power of the fan to improve a cooling efficiency of the liquid cooling mode and the air cooling mode, if the environmental air pressure is less than an air pressure threshold or the altitude is greater than an altitude threshold.

[0012] In an embodiment, the liquid cooling system further comprises a cooling liquid temperature detection device, a heating device and a cooling device; the cooling liquid temperature detection device is configured to detect a temperature of the cooling liquid; the heating device is configured to heat the temperature of the cooling liquid to a first preset temperature if the temperature of the cooling liquid is less than a first preset threshold; the cooling device is configured to cool the temperature of the cooling liquid to a second preset temperature if the temperature of the cooling liquid is greater than a second preset threshold; wherein the first preset temperature and the second preset temperature are within a preset use range of the cooling liquid.

[0013] In an embodiment, the system comprises a plurality of thermal imaging cameras; the plurality of thermal imaging cameras are configured to detect thermal radiation of a surface of the cable to generate a thermal image; the controller is further configured to improve a cooling rate of the liquid cooling system and / or the air cooling system if a hot spot position is detected based on the thermal image.

[0014] In a second aspect, the present application provides a cable cooling method, applied to the cable cooling system of the first aspect or any one of the first aspect, the method comprising: acquiring cable operation information of the cable in a current working period; determining a target cooling mode of the cable in the current working period based on the cable operation information; determining a cooling sequence matched with the cable operation information in a case where the target cooling mode comprises a liquid cooling mode and an air cooling mode; the cooling sequence is used to represent an enabling sequence of the liquid cooling mode and the air cooling mode; in a case where the target cooling mode is operated in the cooling sequence in the current working period, predicting an operation state of the cable in a next working period based on a state prediction model matched with historical state information of the cable; adjusting the target cooling mode based on the operation state, so as to cool the cable in the next working period based on the adjusted target cooling mode.

[0015] The cable heat dissipation system and method can determine the actual operation condition of the cable based on the cable operation information, and the determined target heat dissipation mode matches the actual operation condition of the cable, so that the heat dissipation accuracy can be improved; in the case that the target heat dissipation mode includes the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, the heat dissipation efficiency can be improved by combining the liquid cooling heat dissipation and the air cooling heat dissipation; by adjusting the target heat dissipation mode based on the predicted operation state, the heat dissipation mode of the next working period can be adjusted in advance, so that when the next working period is reached, the cable can be cooled in time by using the heat dissipation mode matched with the operation condition of the next working period, and the heat dissipation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure block diagram of the cable heat dissipation system in an embodiment is shown in FIG. 1.

[0017] Figure 2 The structure schematic diagram of the cable heat dissipation system in an embodiment is shown in FIG. 2.

[0018] Figure 3 The flowchart of the cable heat dissipation method in another embodiment is shown in FIG. 3.

[0019] Figure 4 The structure block diagram of the cable heat dissipation device in an embodiment is shown in FIG. 4.

[0020] Figure 5 The internal structure diagram of the computer device in an embodiment is shown in FIG. 5.

[0021] REFERENCE SIGNS:

[0022] 1-cable; 2-cooling liquid circulation pipeline; 3-radiator; 4-fan; 5-cooling liquid quality detection device; 6-cooling liquid pump. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0024] In the conventional technology, natural air cooling is used to take away heat by air convection, which is suitable for low-power cables, but its heat dissipation efficiency is insufficient in high-power applications. In the conventional technology, the cable can also be cooled by forced air cooling heat dissipation mode, which enhances air flow by fan to improve heat dissipation performance, but has problems of noise, high energy consumption and uneven air flow distribution. The above conventional heat dissipation methods are not satisfactory in meeting the requirements of modern power systems for high-power cable heat dissipation, and liquid cooling technology emerges as the times require. Liquid cooling technology has been widely used in high-power electronic devices due to its excellent heat conduction performance.

[0025] Generally, the liquid cooling system can absorb and transfer the heat generated by the cable through the circulation of the cooling liquid, and then transfer the heat to the heat sink or cooling device, but its complex structure, high installation and maintenance cost limits its wide application in cable cooling. However, the current cable cooling technology still has the following main limitations in the face of the cooling demand of high-power cables: limited cooling efficiency, especially difficult to meet the demand in high-power and complex environments; complex structure of the cooling system, high maintenance and installation cost, and difficult to realize dynamic adjustment; insufficient intelligent control function, unable to fully utilize real-time data for cooling optimization; safety problems have not been effectively solved, such as fire hazards and equipment failure risks still need attention.

[0026] To overcome the limitations of single cooling technology, the composite technology of air cooling and liquid cooling emerges as the times require, and the composite application of air cooling and liquid cooling technology has become an important development trend. By combining the high-efficiency heat absorption characteristics of the liquid cooling system with the extended heat dissipation capacity of the air cooling system, the liquid cooling system is responsible for efficiently absorbing heat, while the air cooling system enhances the heat exchange capacity of the heat sink in the liquid cooling system, thereby improving the overall cooling efficiency and reducing the complexity and cost of the single system.

[0027] However, the design and optimization of such a composite cooling system face many challenges, including coordinated control between liquid cooling and air cooling systems, adjustment of cooling capacity under load changes, etc. Moreover, cable cooling systems need to consider complex environmental factors such as humidity, air pressure, and ambient temperature in actual application, which may affect the performance and reliability of the cable cooling system, so environmental monitoring devices need to be integrated to optimize system operation. In addition, cable cooling systems need to meet strict safety standards, including fire prevention and safety measures, to ensure the stability and safety of the system under extreme environmental conditions. Therefore, the comprehensive development of a composite cooling system integrating liquid cooling and air cooling, combined with intelligent control and environmental monitoring technology, to improve the overall performance and safety of the cable cooling system, has become an urgent demand in the current power engineering field. At the same time, how to coordinate the collaborative work of the two technologies and how to dynamically adjust the cooling performance are the directions that need to be further optimized.

[0028] In summary, in order to overcome the limitations of traditional cooling schemes, by combining liquid cooling and air cooling, real-time acquisition of cable temperature, humidity, air pressure, ambient temperature, etc. Running information can be obtained, so that the cable cooling system can dynamically adjust the cooling mode according to the actual operating conditions, improve its cooling performance and energy efficiency. For example, by acquiring the temperature, humidity, air pressure, ambient temperature, etc. Running information of the cable through the sensor, the cooling demand of the cable can be sensed in real time, and the cooling mode can be intelligently adjusted to avoid unnecessary energy consumption while ensuring the safety and stability of the cable cooling system.

[0029] In combination with the above, in one embodiment, as shown inFigure 1 As shown, a structural diagram of a cable heat dissipation system is provided, wherein the cable heat dissipation system 100 comprises a liquid cooling system 102 corresponding to a liquid cooling heat dissipation mode, an air cooling system 104 corresponding to an air cooling heat dissipation mode, a detection device 106, and a controller 108.

[0030] Specifically, the detection device 106 is configured to obtain cable operation information of the cable in a current working period; the controller 108 is configured to determine a target heat dissipation mode of the cable in the current working period based on the cable operation information; in the case that the target heat dissipation mode comprises the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, determine a heat dissipation sequence matched with the cable operation information; the heat dissipation sequence is used to represent the respective enabling sequence of the liquid cooling heat dissipation mode and the air cooling heat dissipation mode; predict an operation state of the cable in a next working period based on a state prediction model matched with historical state information of the cable; adjust the target heat dissipation mode based on the operation state, so as to perform heat dissipation on the cable in the next working period based on the adjusted target heat dissipation mode. Thus, the actual operation condition of the cable can be determined based on the cable operation information, and then the determined target heat dissipation mode matches the actual operation condition of the cable, which can improve the heat dissipation accuracy; in the case that the target heat dissipation mode comprises the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, the heat dissipation efficiency can be improved by combining the liquid cooling heat dissipation and the air cooling heat dissipation; by adjusting the target heat dissipation mode based on the predicted operation state, the heat dissipation mode of the next working period can be adjusted in advance, so that when the next working period is reached, the cable can be heat dissipated in time by using the heat dissipation mode matched with the operation condition of the next working period, thereby improving the heat dissipation efficiency.

[0031] The cable operation information refers to relevant parameters in the cable operation process, for example, the cable operation information can comprise environmental parameters and cable state parameters. The environmental parameters refer to parameters related to the environment where the cable is located, including but not limited to: environmental temperature, environmental humidity, and environmental wind speed, etc. The cable state parameters refer to parameters related to the state of the cable, including but not limited to: cable temperature and current load in the cable, etc.

[0032] The number of detection time nodes in the current working period can be one or more. When the number of detection time nodes is more than one, the cable operation information of the cable in the current working period can be determined by comprehensively considering the cable operation information corresponding to multiple detection time nodes. For example, taking the cable operation information comprising the cable temperature as an example, the average value of the cable temperature corresponding to multiple detection time nodes can be determined as the cable temperature of the cable in the current working period.

[0033] The number of liquid cooling systems and air cooling systems is not limited, for example, the liquid cooling system and the air cooling system can include one or more than two. In one case, the controller is also used to close the cooling liquid pump or start a different liquid cooling system from the currently started liquid cooling system when the currently started liquid cooling system fails, to prevent further damage to the cable or equipment. In some cases, an alarm prompt can also be output synchronously, so that the user can timely maintain or repair through the alarm prompt, and ensure the reliability of the cable cooling system in extreme cases. In other cases, the controller is also used to start a different liquid cooling system from the currently started liquid cooling system when the cooling liquid circulating pipeline is blocked or the cooling liquid pump fails, to determine that the cable temperature will not rise rapidly. Wherein, the currently started liquid cooling system can refer to the main liquid cooling system, and the liquid cooling system different from the currently started liquid cooling system can refer to the standby liquid cooling system. When the number of standby liquid cooling systems is more than one, one or more standby liquid cooling systems in the plurality of standby liquid cooling systems can be started randomly.

[0034] The structure of the liquid cooling system is not limited. In one embodiment, the liquid cooling system can include cooling liquid, cooling liquid circulating pipeline, cooling liquid pump, and heat sink connected with the cooling liquid circulating pipeline. Wherein, the cooling liquid pump is used to drive the cooling liquid to circulate in the cooling liquid circulating pipeline and maintain the flow speed of the cooling liquid; the cooling liquid circulating pipeline is arranged on the surface of the cable, or the distance between the cooling liquid circulating pipeline and the cable is less than or equal to a set threshold, the cooling liquid circulating pipeline is used to transport the heat generated by the cable absorbed by the cooling liquid to the heat sink; the heat sink is used to release the heat taken away by the cooling liquid to the external environment. Thus, based on the liquid cooling system, the liquid cooling cooling mode is started, so that the cooling liquid flows in the cooling liquid circulating pipeline, the heat from the cable is transferred to the external environment by the heat sink, and the cooled cooling liquid enters the cooling liquid circulating pipeline again to form a continuous cooling loop.

[0035] The type of cooling liquid is not limited, as long as it can achieve high thermal conductivity and stable physical and chemical properties, ensure the cooling efficiency under high temperature conditions, and avoid corrosion or influence on the cable and its external structure, so that the cooling liquid pump delivers the cooling liquid to the cooling liquid circulating pipeline, and the cooling liquid continuously absorbs the heat generated on the surface of the cable during the flow in the cooling liquid circulating pipeline. The heat-absorbed cooling liquid enters the heat sink, the heat sink releases the heat to the environment by natural convection or fan cooling, and then the cooled liquid is sucked into the cooling liquid pump to form a complete heat absorption cycle, so as to ensure that the cable temperature is always within a safe range.

[0036] For example, coolants with excellent heat transfer properties, such as water and glycol mixtures, can be selected. These types of coolants not only have high specific heat capacity but also good fluidity and low viscosity, allowing them to quickly absorb and conduct heat. Alternatively, depending on the cable's power and operating conditions, other coolants with high heat capacity and excellent flow characteristics, such as certain special cooling oils, can be chosen. When selecting a coolant, cooling requirements, operating environment (such as climate conditions), and cost factors can be comprehensively considered. Furthermore, the coolant's high specific heat capacity and good heat transfer performance ensure that it can quickly absorb heat from the cable surface and transfer it to the radiator.

[0037] The location of the coolant circulation pipes is not limited, as long as the circulating coolant in the pipes can absorb heat from the cable surface. For example, the coolant circulation pipes can be arranged around the cable, close to the cable surface, to maximize the contact area between the coolant and the cable surface, ensuring that the coolant can absorb heat from the cable to the maximum extent.

[0038] The material of the coolant circulation pipes is not limited. For example, high thermal conductivity and high-temperature resistance materials such as copper or aluminum can be used. Copper and aluminum alloys have excellent thermal conductivity, which can quickly transfer the heat generated on the cable surface to the coolant, ensuring effective heat conduction under high-power operating conditions and preventing material aging caused by overheating. At the same time, the bending radius of the cable and complex wiring conditions can be considered when designing the coolant circulation pipes to ensure that the coolant absorbs heat evenly along its entire length.

[0039] The diameter of the coolant circulation pipe can be designed according to the power density and heat generation of the cable. For example, the diameter of the coolant circulation pipe can be set to 10 mm to 20 mm. A smaller diameter is beneficial to increasing the flow rate of the coolant, while a larger diameter increases the surface area of ​​contact between the coolant and the cable, making heat conduction more uniform.

[0040] For example, such as Figure 2 The diagram illustrates a cable cooling system. A coolant circulation pipe 2 surrounds the cable 1, closely adhering to its surface. A coolant pump 6 drives the coolant to circulate within the pipe 2, transferring the heat absorbed by the cable to a radiator 3. The radiator 3 then releases the heat carried away by the coolant into the external environment. Simultaneously, a fan 4 generates airflow to remove heat from the cable surface and the radiator, further enhancing overall cooling capacity. A coolant quality detection device 5 detects coolant quality; for example, if excessive contaminant levels or abnormal flow are detected, a maintenance alert is displayed, reminding operators to replace or maintain the coolant.

[0041] In some embodiments, in order to prevent the cooling liquid circulation pipeline from displacement or loosening during operation, the cable cooling system can further include a clamp or an elastic support structure for firmly fixing the cooling liquid pipeline on the surface of the cable while adapting to the physical properties of thermal expansion and contraction of the cable. Among them, the fixing clamp can be made of high-temperature-resistant and corrosion-resistant materials to ensure the stability of the pipeline in high temperature and harsh environment; the elastic support structure is used to adapt to the small deformation of the cable and the pipeline under temperature change, preventing the gap between the pipeline and the cable from being too large or being too tight to affect the cooling effect.

[0042] Among them, the structure of the heat sink is not limited, for example, the heat sink can be designed with structures such as metal fins, fins, etc. to increase the surface area; the metal fins can be made of copper or aluminum, which have excellent thermal conductivity and can quickly conduct the heat taken away from the cooling liquid; the fins are designed in a multi-layer structure to increase the surface area of the heat sink and improve the cooling efficiency; among them, the larger the surface area of the heat sink, the faster the heat in the cooling liquid can be diffused. The heat sink can be designed in a modular manner, and the heat sink includes a cooling unit, which can be increased or decreased according to the actual needs of the cable cooling system to adapt to different scales and power of the cable application. The material of the heat sink is not limited, for example, the heat sink material can be a metal with good thermal conductivity, such as aluminum, copper, etc. Thus, the heat sink is closely connected with the cooling liquid pipeline, and through the conduction of the cooling liquid, the heat on the surface of the cable can be efficiently transferred to the heat sink, and then the heat is taken away by the air cooling system through air convection. The setting position of the heat sink is not limited, for example, the area with good air flow can be selected to ensure that the cooling process is more efficient. In some closed environments, the cable cooling system can also increase additional ventilation facilities to improve the flow of air and ensure that the heat sink can continue to cool.

[0043] Among them, the structure of the air cooling system is not limited. In one embodiment, the air cooling system includes a fan for generating forced air flow to directly act on the surface of the cable or the heat sink to take away the heat on the surface of the cable and the heat sink. Among them, the distance between the fan and the cable is less than or equal to the distance threshold, or the distance between the fan and the heat sink is less than or equal to the distance threshold. Thus, the air cooling system uses air flow to assist the liquid cooling system in cooling to further improve the cooling efficiency.

[0044] The air cooling system enhances air convection to take away heat through high-efficiency fans. The number of fans is not limited, and the rotating speed of the fans can be adjusted. Through reasonable design of the air duct layout of the fans, it can be ensured that air can flow through the cable and the heat sink efficiently to take away the residual heat of the cable surface and the heat sink, further improving the overall heat dissipation capacity. The setting position of the fan is not limited. For example, the setting position of the fan can be reasonably arranged according to the heat distribution of the cable and the structure of the heat sink to ensure that the air flow can fully cover all heat dissipation areas of the cable or the heat sink. According to the specific shape of the cable, the fan can be arranged along the length direction of the cable, or the fan can be arranged at multiple angles according to the geometric shape of the cable. The type of the fan is not limited. For example, a high-efficiency and low-noise fan can be used to reduce noise pollution during operation and is suitable for long-term continuous work.

[0045] In some cases, the controller is further configured to start a new fan when the currently started fan fails or the temperature of the heat sink exceeds a threshold value, and the power of the new fan is greater than the power of the currently started fan. Thus, the heat of the heat sink and the cable surface can be taken away in an emergency by starting the new fan to avoid damaging the equipment and the cable. In some cases, the controller is further configured to adjust the on-off state and rotating speed of the fan. For example, when the temperature of the cable rises, the rotating speed of the fan is increased to enhance air convection; when the temperature drops to a set safety range, the rotating speed of the fan is reduced or the fan is controlled to stop running, thereby achieving energy saving effect. For example, when the temperature drops by less than or equal to a first temperature threshold value, the rotating speed of the fan is reduced or the fan is controlled to stop running.

[0046] In some cases, the rotating speed of the fan has a corresponding relationship with the gear, so that by setting multiple gears (such as low speed, medium speed, high speed, etc.), it can be ensured that even in a low air pressure environment, the air cooling system can still maintain stable air flow to ensure the heat dissipation effect.

[0047] In one embodiment, based on the cable operation information, the implementation of the target heat dissipation mode of the cable in the current working period is not limited, and the following examples are used to illustrate several implementation manners.

[0048] In one implementation manner, the cable operation information includes environmental humidity and cable temperature, and the detection device further includes a humidity sensor and a temperature sensor. The humidity sensor is configured to collect the environmental humidity of the cable in the current working period, and the temperature sensor is configured to collect the cable temperature of the cable in the current working period.

[0049] The number and arrangement of the temperature sensors are not limited. For example, a plurality of temperature sensors can be arranged on the surface of the cable, the heat sink and the environment to monitor the cable temperature and the environment temperature in real time to provide a basis for the heat dissipation strategy of the cable heat dissipation system. The arrangement of the plurality of temperature sensors can also be determined according to the heating characteristics and heat distribution of the cable to ensure that each temperature sensor can capture the most real temperature fluctuations. In some cases, when the plurality of temperature sensors are initially installed or maintained, all the temperature sensors can be uniformly calibrated to ensure the accuracy of temperature acquisition, wherein the calibration process includes comparing the data of the standard temperature sensor to adjust the deviation.

[0050] Further, the controller is further configured to determine, based on a mapping relationship between the preset temperature range, the preset humidity range and the heat dissipation mode, the heat dissipation mode matched with the cable temperature and the environment humidity as the target heat dissipation mode of the cable in the current working period.

[0051] Specifically, the preset temperature range in which the cable temperature is located is determined from the preset temperature range in the mapping relationship; the preset humidity range in which the environment humidity is located is determined from the preset humidity range in the mapping relationship; and the heat dissipation mode corresponding to the preset temperature range in which the cable temperature is located and the preset humidity range in which the environment humidity is located is determined as the target heat dissipation mode of the cable in the current working period from the mapping relationship.

[0052] The specific content of the preset temperature range, the preset humidity range and the heat dissipation mode in the mapping relationship is not limited, which will be illustrated by several examples below.

[0053] In some cases, when the cable temperature is greater than a first temperature threshold and less than or equal to a second temperature threshold, and the environment humidity is less than a first humidity threshold, the air cooling heat dissipation mode is determined as the target heat dissipation mode of the cable in the current working period. The heat dissipation rate of the air cooling system corresponding to the air cooling heat dissipation mode is a first rate, for example, the heat dissipation rate of the air cooling system can be adjusted to match the first rate by adjusting the rotating speed of the fan in the air cooling system, and the heat dissipation rate of the air cooling system is positively correlated with the rotating speed of the fan.

[0054] In some cases, when the cable temperature is greater than the second temperature threshold and less than or equal to a third temperature threshold, and the environment humidity is greater than or equal to the first humidity threshold and less than or equal to a second humidity threshold, the air cooling heat dissipation mode is determined as the target heat dissipation mode of the cable in the current working period under the condition that the liquid cooling heat dissipation mode is pre-started. The heat dissipation rate of the air cooling system corresponding to the air cooling heat dissipation mode is a second rate, and the second rate is greater than the first rate.

[0055] In some cases, when the cable temperature is greater than the third temperature threshold and less than or equal to the fourth temperature threshold, and the ambient humidity is greater than the second humidity threshold, the liquid cooling heat dissipation mode and the air cooling heat dissipation mode are determined as the target heat dissipation mode of the cable in the current working period. The air cooling heat dissipation mode corresponds to a heat dissipation rate of the air cooling system, which is the third rate, and the third rate is greater than the second rate. The liquid cooling heat dissipation mode corresponds to a heat dissipation rate of the liquid cooling system, which is the fourth rate. The heat dissipation rate of the liquid cooling system can be adjusted by adjusting the flow rate and / or flow rate of the cooling liquid in the liquid cooling system to match the fourth rate. The heat dissipation rate of the liquid cooling system is positively correlated with the flow rate and / or flow rate of the cooling liquid.

[0056] In some embodiments, the liquid cooling system can further include a flow regulator for adjusting the flow rate and / or flow rate of the cooling liquid, i.e., the liquid cooling system can adjust the flow rate and / or flow rate of the cooling liquid through the flow regulator to improve heat dissipation. In some cases, when the cable is in a high load state, the flow rate of the cooling liquid is increased to speed up heat dissipation; when the cable is in a low load state, the flow rate of the cooling liquid is reduced to save energy. In some cases, when the cable is in a high load state, the working intensity of the liquid cooling system and the air cooling system is increased to improve the heat dissipation rate; when the cable is in a low load state, the working intensity of the liquid cooling system and the air cooling system is reduced to save energy and achieve efficient energy consumption management.

[0057] In some cases, when the cable temperature is greater than the fourth temperature threshold, the liquid cooling heat dissipation mode and the air cooling heat dissipation mode are determined as the target heat dissipation mode of the cable in the current working period. The air cooling heat dissipation mode corresponds to a heat dissipation rate of the air cooling system, which is the first maximum heat dissipation rate, and the first maximum heat dissipation rate is greater than the third rate. The liquid cooling heat dissipation mode corresponds to a heat dissipation rate of the liquid cooling system, which is the second maximum heat dissipation rate, and the second maximum heat dissipation rate is greater than the fourth rate.

[0058] The specific values of the first to fourth temperature thresholds and the specific values of the first and second humidity thresholds can be set according to actual application scenarios, and the present embodiment is not limited.

[0059] For example, taking the first temperature threshold of 80℃, the second temperature threshold of 90℃, the third temperature threshold of 100℃, the fourth temperature threshold of 110℃, the first humidity threshold of 60℃, and the second humidity threshold of 70℃ as an example, a mapping relationship between a preset temperature range, a preset humidity range, and a heat dissipation mode is provided as shown in Table 1.

[0060]

[0061] In combination with Table 1, when the cable temperature is in the range of (80°C, 90°C] and the ambient humidity is less than 60%, the fan in the air cooling system can be controlled to run at a low speed to match the heat dissipation rate of the air cooling heat dissipation mode with the first rate, and the liquid cooling system is controlled. Thus, by controlling the cable heat dissipation system to run in energy saving mode, energy consumption can be reduced.

[0062] When the cable temperature is in the range of (90°C, 100°C] and the ambient humidity is in the range of [60%, 70%], the fan in the air cooling system is controlled to run at a medium speed to match the heat dissipation rate of the air cooling heat dissipation mode with the second rate, and the liquid cooling system is controlled to pre-start, while monitoring temperature changes to ensure that the liquid cooling system can dissipate heat from the cable to prevent the temperature from continuing to rise when the cable temperature shows an upward trend.

[0063] When the cable temperature is in the range of (100°C, 110°C] and the ambient humidity is greater than 70%, the fan in the air cooling system is controlled to run at a medium speed to match the heat dissipation rate of the air cooling heat dissipation mode with the third rate, and the cooling liquid in the liquid cooling system is controlled to flow at a high flow rate to match the heat dissipation rate of the liquid cooling heat dissipation mode with the fourth rate. Thus, by controlling the air cooling heat dissipation and the liquid cooling heat dissipation to run cooperatively, the cable temperature can be prevented from exceeding the safety threshold.

[0064] When the cable temperature is greater than 110°C, i.e., the cable temperature exceeds the safety threshold (such as 100°C), an emergency heat dissipation mode is started, the air cooling system is controlled to run at a first maximum heat dissipation rate, and the liquid cooling system is controlled to run at a second maximum heat dissipation rate, and a high temperature alarm is issued to prevent cable failure and remind the operator to make necessary operation adjustments or maintenance.

[0065] It should be understood that in the case of high humidity, water vapor may condense on the surface of the cable or the heat sink, affecting the heat dissipation efficiency, therefore, through real-time monitoring by the humidity sensor, the system can determine the change in ambient humidity. For example, when the humidity is high, the water vapor content in the air increases, which can cause water vapor condensation on the surface of the cable or the heat sink, thereby affecting the heat dissipation efficiency, then the heat dissipation rate of the air cooling system can be increased to evaporate the water vapor on the surface of the cable and the heat sink, thereby maintaining high heat dissipation efficiency and preventing humidity from affecting heat dissipation efficiency. For example, by increasing the fan speed or using more fans, the airflow can be more concentrated and strong to enhance heat exchange between the surface of the heat sink and the air, accelerate air flow, help to remove water vapor on the surface of the heat sink or the cable, and reduce the possibility of humidity retention and condensation.

[0066] The above is based on the mapping relationship between the preset temperature range, the preset humidity range and the heat dissipation mode, to determine the target heat dissipation mode of the cable in the current working period. In another implementation, the cable operation information includes the cable temperature, and the controller is further configured to determine the target heat dissipation mode of the cable in the current working period based on the mapping relationship between the cable temperature and the heat dissipation mode. For example, when the cable temperature is within a first preset range, the liquid cooling heat dissipation mode and the air cooling heat dissipation mode are determined as the target heat dissipation mode of the cable in the current working period; when the cable temperature is within a second preset range, the liquid cooling heat dissipation mode is determined as the target heat dissipation mode of the cable in the current working period. The difference between the lower limit value of the first preset range and the upper limit value of the second preset range is greater than or equal to a difference threshold value.

[0067] In one embodiment, the controller is further configured to: in the case where the target heat dissipation mode includes the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, if the ambient humidity is greater than or equal to a first humidity threshold value and less than or equal to a second humidity threshold value, determine that the air cooling heat dissipation mode has a higher activation order than the liquid cooling heat dissipation mode. That is, the air cooling heat dissipation mode is run first, and then the liquid cooling heat dissipation mode is run.

[0068] Further, in the case where the air cooling heat dissipation mode is used to dissipate heat from the cable, if the air cooling system cannot effectively reduce the cable temperature, the liquid cooling system can be started to run the liquid cooling heat dissipation mode. Specifically, in one embodiment, in the case where the current working period runs for a preset time length in the air cooling heat dissipation mode, if the temperature difference between the re-detected cable temperature and the cable temperature of the current working period is less than or equal to a temperature difference threshold value, the liquid cooling system is controlled to start. In some cases, the flow rate and / or flow volume of the cooling liquid in the liquid cooling system can be gradually increased to prevent condensation risk and improve the heat dissipation rate of the cable.

[0069] In one embodiment, the cable heat dissipation system can further include an air flow optimization device, which includes a flow guide cover and an air flow guide for optimizing the air flow path to improve the heat dissipation effect of the air cooling system. Further, in some cases, the air flow guide can be used to adjust the air flow path, so that in high altitude or low pressure environment, the air in the environment can flow through the radiator more effectively, improving the heat dissipation efficiency of the liquid cooling system. In other cases, the structural design of the air flow guide can be optimized to ensure that the air generated by the fan can be evenly distributed to each part of the radiator, avoiding air flow concentration in a certain part, thereby improving the overall heat dissipation efficiency.

[0070] The air flow director can uniformly distribute the air flow entering the cable cooling system to the cable surface and the heat sink, avoiding the concentration of air flow in a certain part, resulting in uneven local heat dissipation. The benefits of setting the air flow guide area are as follows: first, by adjusting the direction of the air flow, the air flow dead angle that may occur around the cable surface or the heat sink can be reduced, ensuring that the cable or the heat sink around can be effectively cooled; second, the stable wind speed and direction of the air flow output by the fan in the air cooling system can be ensured after passing through the air flow director, improving the cooling effect of the air cooling system; third, the hot air generated during the cable cooling process can be quickly discharged from the cable cooling system, preventing the hot air from stagnating on the cable surface or around the heat sink, affecting the cooling effect; fourth, the hot air can be prevented from flowing back to the cooling area, ensuring that the air entering the cable cooling system remains at a low temperature.

[0071] The structure of the air flow director is not limited, for example, the air flow director can be designed to be streamlined, reducing turbulence and resistance of the air flow inside the cable cooling system, and improving the air flow efficiency. In some cases, when the fan in the air cooling system is multiple, the angle and shape of the air flow director can be adjusted according to the layout and installation position of the multiple fans, to ensure that the air flow path does not interfere with each other when the multiple fans work together.

[0072] In one embodiment, the cable cooling system can further include a flow meter, a pressure sensor, and a cooling liquid quality detection device. The flow meter is used to measure the flow rate of the cooling liquid; the pressure sensor is used to detect the pressure in the cooling liquid circulation pipeline; and the cooling liquid quality detection device is used to check the quality of the cooling liquid.

[0073] In some cases, when the content of pollutants in the cooling liquid is too high, or the flow rate of the cooling liquid is higher than the upper limit value or lower than the lower limit value, or impurities appear in the cooling liquid, or the concentration of the cooling liquid does not match the standard concentration, or the use time of the cooling liquid exceeds the time threshold, the cable cooling system outputs a maintenance prompt to remind the operator to replace or maintain the cooling liquid, to ensure that the cooling liquid is always in the best state, and to avoid the problem of reduced cooling efficiency or pipeline blockage caused by deterioration of the cooling liquid.

[0074] In some embodiments, if the pressure is outside the preset pressure range, the flow rate and / or flow of the cooling liquid are adjusted to keep the pressure in the cooling liquid circulation pipeline within the preset pressure range, thereby maintaining a stable pressure level and avoiding damage to the pipeline caused by excessively high or low pressure.

[0075] To avoid excessively high pressure or air accumulation inside the cooling liquid circulation pipeline, an automatic air discharge and pressure relief function can be configured to keep the pressure inside the cooling liquid circulation pipeline within a preset pressure range and prevent air bubbles from affecting the cooling efficiency inside the pipeline.

[0076] In one embodiment, the cable cooling system can further comprise an automatic exhaust valve and a pressure relief valve. The automatic exhaust valve can be installed at a high point of the cooling liquid circulation pipeline to automatically exhaust the gas bubbles generated during the operation of the liquid cooling system, preventing the accumulation of gas in the pipeline, which can reduce the flow or cause uneven cooling. When the pressure in the cooling liquid circulation pipeline exceeds the upper limit of the preset pressure range, the control pressure relief valve opens to release the excessive pressure and prevent damage to the pipeline or the cooling liquid pump due to excessive pressure.

[0077] In some embodiments, when the flow rate of the cooling liquid is higher than the upper limit of the flow rate or lower than the lower limit of the flow rate, the pump speed of the cooling liquid pump is adjusted to keep the cooling liquid within the preset liquid range.

[0078] In some cases, when the pressure in the cooling liquid circulation pipeline is abnormal, or the quality of the cooling liquid is below the quality threshold, or the fan of the air cooling system fails, the cable cooling system automatically sends an alarm to remind the operator to maintain, or the cable cooling system activates a protection measure, such as reducing the cable load or cutting off the power supply, to prevent further damage.

[0079] In some cases, when the flow rate of the cooling liquid is higher than the upper limit of the flow rate or lower than the lower limit of the flow rate, or when the pressure in the cooling liquid circulation pipeline is abnormal, if the pump speed or fan speed is adjusted, the flow rate of the cooling liquid is still not within the preset liquid range, or the pressure in the cooling liquid circulation pipeline is still not within the preset pressure range, an alarm signal is output and an emergency cooling mechanism is activated, i.e., a different liquid cooling system from the currently activated liquid cooling system is started, or a different air cooling system from the currently activated air cooling system is started.

[0080] In one embodiment, the cable cooling system can further comprise a cooling liquid temperature detection device, a heating device, and a cooling device. The cooling liquid temperature detection device is used to detect the temperature of the cooling liquid; the heating device is used to heat the temperature of the cooling liquid to a first preset temperature when the temperature of the cooling liquid is less than a first set threshold; the cooling device is used to cool the temperature of the cooling liquid to a second preset temperature when the temperature of the cooling liquid is greater than a second set threshold; wherein the first preset temperature and the second preset temperature can be the same or different, and the first preset temperature and the second preset temperature are within the preset use range of the cooling liquid. By providing the heating device and the cooling device, the use of the cooling liquid can be ensured within the optimal temperature range, and the use effect of the cooling liquid can be improved.

[0081] It should be understood that the radiator and the fan can easily accumulate dust and particles after a long time of work, affecting the cooling performance. Therefore, an automatic cleaning device can be provided to periodically remove dust from the surface of the radiator and debris from the fan blades to maintain the efficient operation of the cable cooling system.

[0082] Specifically, in one embodiment, the cable heat dissipation system can further comprise an automatic cleaning device, the automatic cleaning device comprising a first filter corresponding to the heat sink, a second filter corresponding to the fan, and a cleaning device; the cleaning device is used to start the first filter and the second filter, the first filter is installed on the heat sink and used to clean the dust and dirt on the heat sink periodically; the second filter is installed on the fan and used to clean the dust and dirt on the fan periodically. The number of the second filter is consistent with the number of the fan.

[0083] In one embodiment, the implementation of predicting the running state of the cable in the next working period based on the state prediction model matched with the historical state information of the cable is not limited, and several modes thereof are exemplified below.

[0084] In one implementation, the controller is further configured to analyze the cable running information of the cable in the current working period based on the state prediction model matched with the historical state information of the cable, and predict the running state of the cable in the next working period; the historical state information comprises historical running information in a historical working period, and the state prediction model is trained based on the historical running information. Therefore, the running state of the cable in the next working period represents the cable running information of the cable in the next working period.

[0085] The manner of training the state prediction model based on the historical running information in the historical working period is not limited, for example, the historical cable temperature in the historical running information can be analyzed based on the time series analysis method to obtain a temperature prediction model, or the long-term dependence and nonlinear relationship of the temperature change between the historical cable temperature can be captured based on a deep learning method such as Long Short-Term Memory (LSTM) to obtain a temperature prediction model, and at the same time, a random forest model can be used to regress and predict multi-dimensional features (such as current load, current, humidity, etc.) to obtain a regression prediction model, and then based on the temperature prediction model and the regression prediction model, the state prediction model can be obtained.

[0086] For example, Table 2 provides historical running information of a cable, which includes a plurality of historical running parameters and a collection time corresponding to each historical running parameter; based on the historical running information of the cable shown in Table 2, a state prediction model can be trained, so that in the case of inputting the cable running information of the cable in the current working period into the state prediction model, the cable running information of the cable in the next working period as shown in Table 3 can be predicted, wherein:

[0087]

[0088]

[0089] Based on the cable operation information of the cable predicted by Table 3 in the next working cycle, it can be known that at 15:00, the cable temperature can reach 102°C, exceeding the safety threshold (such as 100°C), and the humidity is 70%, and there is a risk of condensation. It is analyzed that if the cable temperature continues to rise and the humidity is high, the condensed water may accumulate on the pipeline of the liquid cooling system or the surface of the cable, affecting the insulation performance. Therefore, in some cases, when the target heat dissipation mode includes the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, the heat dissipation rate of the air cooling system can be adjusted to match the third rate to increase air circulation and evaporate condensed water, and the heat dissipation rate of the liquid cooling system is adjusted to match the fourth rate. In other cases, when the target heat dissipation mode includes the air cooling heat dissipation mode, the heat dissipation rate of the air cooling system can be adjusted to match the third rate to increase air circulation and evaporate condensed water, and the liquid cooling system is started to run the liquid cooling heat dissipation mode and the heat dissipation rate of the liquid cooling system is adjusted to match the fourth rate.

[0090] Further, in an embodiment, when the target heat dissipation mode includes the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, if it is detected that the cable temperature is reduced to below the adjustment threshold within a set time, the flow rate of the cooling liquid in the liquid cooling system is gradually reduced until the liquid cooling system stops running, and the heat dissipation rate of the air cooling system is controlled to match the second rate.

[0091] Wherein, the adjustment threshold can be 90°C or other values, for example, if the cable temperature is reduced to below 90°C within 30 minutes, the flow rate of the cooling liquid in the liquid cooling system is gradually reduced, and the air cooling system is kept running at the second rate.

[0092] In an embodiment, when the target heat dissipation mode includes the liquid cooling heat dissipation mode and the air cooling heat dissipation mode, if it is detected that the cable temperature shows an upward trend within a set time, the liquid cooling heat dissipation mode and the air cooling heat dissipation mode are continued to run.

[0093] The above is the case where the state prediction model is trained based on historical operation information, and the running state of the cable in the next working cycle is predicted. In another implementation manner, the cable operation information includes environmental parameters, and the controller is further configured to analyze the environmental parameters and energy consumption of the cable in the current working cycle based on the state prediction model matched with the historical state information corresponding to the cable, and predict the running state of the cable in the next working cycle. Wherein, the historical state information includes historical energy consumption in the historical working cycle and historical environmental parameters corresponding to the historical energy consumption, the state prediction model is trained based on the historical energy consumption and the historical environmental parameters, and the running state of the cable in the next working cycle represents the energy consumption and environmental parameters of the cable in the next working cycle.

[0094] Specifically, the historical energy consumption data and the corresponding historical environmental parameters in different historical working periods are statistically analyzed by using a machine learning algorithm to train a state prediction model; the environmental parameters and energy consumption of the cable in the current working period are input into the state prediction model, and the energy consumption and environmental parameters of the cable in the next working period can be predicted. For example, in the case of predicting that the environmental conditions represented by the environmental parameters are moderate and the energy consumption is low, the working load of the liquid cooling system can be reduced, such as reducing the flow rate of the cooling liquid in the liquid cooling system, while the air cooling system can be maintained at a first rate, thereby ensuring the heat dissipation efficiency while minimizing energy consumption, and energy waste can be avoided.

[0095] It should be understood that by recording the energy consumption data in different working periods, it can be identified which devices in the cable heat dissipation system have high energy consumption and which devices have low operating efficiency under different environmental conditions (such as temperature, humidity, air pressure, etc.). That is, by analyzing the relationship between temperature change, environmental humidity, air pressure, etc. and energy consumption, it can be understood which environmental conditions will lead to high energy consumption, for example, under high temperature, high humidity and low air pressure conditions, the efficiency of the air cooling system is low and the load of the liquid cooling system is heavy. Therefore, by pattern recognition of historical energy consumption data, the energy consumption law under different environmental parameters can be found. For example, under certain environmental conditions, such as low temperature, the pump speed of the liquid cooling system can be reduced, and the speed of the fan in the air cooling system can be reduced, and the energy consumption is also relatively reduced; while under other conditions, such as high temperature, the pump speed in the liquid cooling system or the flow rate of the cooling liquid is increased to enhance heat dissipation, and the speed of the fan in the air cooling system is increased to accelerate heat dissipation, but it will lead to increased energy consumption. Therefore, based on the energy consumption law under the above different environmental parameters to train the state prediction model, the environmental parameters and energy consumption of the next working period can be predicted based on the state prediction model.

[0096] It should be understood that the purpose of intelligent energy consumption analysis is to ensure stable heat dissipation of the cable heat dissipation system while minimizing energy consumption. Therefore, the energy consumption of each device in the cable heat dissipation system is accurately monitored and adjusted to optimize the use of resources.

[0097] In some cases, the energy consumption of the cable in the historical working period comes from at least one of the following devices: a fan in the air cooling system, a cooling liquid pump in the liquid cooling system, a heating device and a cooling device, a heat sink, an air flow guide, a heat sink surface adjusting device, a detection device, etc.

[0098] Among them, the fan plays a core role in the entire heat dissipation process, and its speed directly affects the air flow and heat dissipation efficiency. The energy consumption of the fan is different at different speeds, and the greater the speed, the greater the energy consumption. Therefore, the energy consumption of the air cooling system is closely related to the speed and working time of the fan.

[0099] In a liquid cooling system, the coolant is circulated between the radiator and the cables by a coolant pump. The efficiency, flow rate, and operating time of the coolant pump determine the energy consumption of the liquid cooling system. Therefore, the power of the coolant pump and the flow rate of the liquid are closely related to the energy consumption of the liquid cooling system.

[0100] The heating and cooling equipment are used to regulate the temperature of the coolant. When the temperature is too high, the cooling equipment lowers the temperature of the coolant, and when the temperature is too low, the heating equipment heats the temperature of the coolant. Therefore, the energy consumption of the heating and cooling equipment depends on the operating frequency and duration.

[0101] Among these, airflow guides and radiator surface adjustment devices are used to improve air cooling efficiency and help airflow cover the radiator surface more evenly. Although these devices have relatively low energy consumption, they still affect the overall energy consumption. The detection equipment collects cable temperature, ambient humidity, and ambient air pressure in real time. Although the direct energy consumption of the detection equipment is small, it still affects the overall energy consumption.

[0102] In some embodiments, the controller is further configured to predict environmental parameters for the next working cycle based on weather forecasts; adjust environmental parameters predicted by a state prediction model based on the environmental parameters predicted by the weather forecasts; and then adjust the target heat dissipation mode based on the adjusted environmental parameters.

[0103] The above describes the relevant content for predicting the cable's operating status in the next working cycle. In one embodiment, where the operating status characterizes cable operating information, including cable temperature, the controller is further configured to: determine the temperature trend between the cable temperature corresponding to the operating status and the cable temperature in the current working cycle; increase the heat dissipation rate of the liquid cooling system and the air cooling system if the temperature trend is upward; and control the liquid cooling system to stop operating if the temperature trend is downward. Therefore, by combining the liquid cooling system and the air cooling system to dissipate heat from the cable, the heat dissipation rate can be adjusted in real time based on the actual heat dissipation situation, improving the heat dissipation effect on the cable.

[0104] The above describes the adjustment of the heat dissipation rate based on temperature trends when the target heat dissipation mode includes both liquid cooling and air cooling. In another embodiment, when the target heat dissipation mode includes liquid cooling, if the temperature trend is decreasing, the heat dissipation rate of the liquid cooling system is reduced; conversely, when the target heat dissipation mode includes liquid cooling, if the temperature trend is increasing, the air cooling system is activated, and the heat dissipation rate of the liquid cooling system is increased. Therefore, the heat dissipation mode and rate can be adjusted in real time based on the actual heat dissipation situation, improving the heat dissipation effect on the cable.

[0105] In one embodiment, the cable operation information includes an altitude and an ambient air pressure, and the detection device can include an ambient sensor configured to obtain the ambient air pressure and the altitude of the cable at the current operation cycle. The ambient sensor can be of any type, such as a barometric pressure sensor configured to detect the ambient air pressure of the cable at the current operation cycle, and the altitude can be calculated based on the ambient air pressure.

[0106] Specifically, the controller is further configured to, if the target heat dissipation mode includes a liquid cooling heat dissipation mode and an air cooling heat dissipation mode, and if the ambient air pressure is less than the air pressure threshold or the altitude is greater than the altitude threshold, control the liquid cooling system to increase the flow rate and / or flow speed of the coolant, and / or control the air cooling system to increase the rotation speed and / or power of the fan, so as to increase the heat dissipation efficiency of the air cooling heat dissipation mode and the liquid cooling heat dissipation mode.

[0107] It should be understood that in a high-altitude or low-pressure environment, due to the decrease in atmospheric pressure, the decrease in air pressure leads to a decrease in air density, resulting in a decrease in the heat dissipation efficiency of the air cooling system and the liquid cooling system. Therefore, by increasing the air flow rate through increasing the rotation speed and / or power of the fan, the air flow rate is adapted to the change in air pressure, compensating for the decrease in air flow caused by the high-altitude or low-pressure environment, ensuring that the air cooling system can provide sufficient air flow for heat dissipation, thereby maintaining the heat dissipation efficiency, and ensuring that sufficient air flows through the radiator of the liquid cooling system to enhance the cooling effect. At the same time, by increasing the flow rate and / or flow speed of the coolant, the heat dissipation rate of the liquid cooling system is increased. Similarly, in an environment with a higher air pressure, the rotation speed or power of the fan can be reduced to achieve energy saving.

[0108] The above is a way of increasing the flow rate and / or flow speed of the coolant to increase the heat dissipation rate of the liquid cooling system. In other embodiments, the heat dissipation rate of the liquid cooling system can also be increased by increasing the surface area of the radiator. It should be understood that in a low-pressure environment, the heat conduction ability of air decreases, and by increasing the surface area of the radiator (for example, using larger fins or a more complex structure), more surface area can be provided for heat exchange with air, making up for the decrease in heat dissipation effect caused by the decrease in air density.

[0109] In other embodiments, the heat dissipation rate of the liquid cooling system can also be increased by optimizing the shape of the radiator. The shape of the radiator can be optimized according to the change in air pressure, such as by designing a more suitable fin layout to increase the passage of air flow and avoid uneven air flow distribution, ensuring that the air flow can pass through the surface of the radiator uniformly.

[0110] In an embodiment, the cable cooling system can further comprise a thermal imaging camera for monitoring the heat distribution of the cable and the cable cooling system in real time, helping to quickly locate hot spots and potential faults. The thermal imaging camera can capture the heat distribution map of the surface of the cable and the cable cooling system, generate real-time thermal imaging data, and transmit the real-time thermal imaging data to the controller, thereby achieving accurate positioning of hot spots and potential faults.

[0111] To comprehensively monitor the heat distribution of the cable and the cable cooling system, multiple thermal imaging cameras can be configured. For example, for a long-distance high-voltage cable, a thermal imaging camera can be set up every certain distance (e.g., 10-20 meters).

[0112] In some embodiments, the multiple thermal imaging cameras are used to detect the thermal radiation of the surface of the cable and generate thermal images; and the controller is further configured to increase the heat dissipation rate of the liquid cooling system and / or the air cooling system if a hot spot position is detected based on the thermal images.

[0113] Specifically, the thermal imaging camera detects the thermal radiation of the surface of the cable and the surface of the cable cooling system through an infrared sensor, generates high-resolution thermal images, and each frame of thermal image contains temperature information of different positions of the surface of the cable. Different temperature gradients can be identified by color. The thermal images are converted into a digital temperature matrix to record the temperature values of each position. For each position, if the temperature value is greater than the thermal imaging temperature threshold, the position corresponding to the temperature value is determined as a hot spot position. Multiple hot spot positions are counted to determine a heat distribution abnormal area. If the temperature value of a region in the heat distribution area is higher than that of the adjacent region and cannot be explained by load changes, it may indicate a potential fault, such as insulation aging, cooling liquid leakage, fan failure, etc. Alternatively, the temperature change trend of multiple hot spot positions is monitored. If the temperature change trend shows an upward trend, it indicates that the heat dissipation effect is poor, and a fault may exist.

[0114] Specifically, a machine learning model can be trained based on historical thermal imaging data, and real-time thermal imaging data can be analyzed based on the trained machine learning model to determine temperature abnormal areas and temperature normal areas. If the temperature abnormal area cannot be explained by load changes, it may indicate a potential fault, such as insulation aging, cooling liquid leakage, fan failure, etc.

[0115] In some embodiments, the hot spot positions and corresponding temperature values can be labeled on the thermal images to accurately locate specific areas of the cable or cooling components.

[0116] It should be understood that in order to simplify the management and maintenance of the cable cooling system, a remote monitoring function can be configured, through which an operator can view the working status, temperature data and environmental monitoring data of the cable and cooling system in real time through a cloud platform or a dedicated monitoring system, and can manually adjust the working parameters of the cable cooling system (such as fan speed, cooling liquid flow, etc.) as needed for maintenance.

[0117] In one embodiment, the cable cooling system is in communication connection with a Human Machine Interface (HMI) or a remote monitoring system, and real-time alarms can be sent to the operation and maintenance personnel through the HMI or the remote monitoring system, accompanied by a heat map and detailed information of the hotspot location.

[0118] In some embodiments, the data collected by the detection device can be uploaded to a remote server, so that the user can monitor the running status of the cable cooling system in real time through a dedicated monitoring platform, so as to reduce the complexity of on-site operation by remotely adjusting the working parameters of the cable cooling system or sending maintenance instructions.

[0119] In one case, the remote monitoring system can automatically record historical temperature data, cooling liquid status and fan working records to provide data support for fault diagnosis.

[0120] In some cases, the controller is further configured to send a pre-warning notice to a preset monitoring device or user terminal when an abnormality in temperature, flow, pressure, etc. is detected, to ensure that the user can take timely measures.

[0121] In one embodiment, the cable cooling system can also include a fire detector and an automatic fire extinguishing system. The fire detector is used to detect concentration parameters such as smoke concentration and gas concentration; the automatic fire extinguishing system is used to start fire extinguishing when it is determined that there is a fire risk based on the concentration parameters, to improve the safety of the system. The gas concentration includes but is not limited to gas concentration, oxygen concentration, etc.

[0122] In order to improve the adaptability of the cable cooling system under different environmental conditions, such as high humidity, high temperature, high dust, etc. in harsh environments, environmental adaptability protection measures can be added. Specifically, in one embodiment, the cable cooling system can also include a waterproof and dustproof shell, and the heat sink, fan and cooling liquid pump, etc. can be packaged in the waterproof and dustproof shell to ensure that these devices can still operate normally in humid or dusty environments.

[0123] In combination with the above, in one embodiment, as shown in Figure 3 , a cable cooling method is provided, which is applied to the controller 108 in Figure 1 for example, and includes the following steps:

[0124] S302, Obtain cable operation information for the current working cycle.

[0125] S304, based on cable operation information, determines the target heat dissipation mode of the cable in the current working cycle.

[0126] S306, when the target heat dissipation mode includes liquid cooling and air cooling, determine the heat dissipation sequence that matches the cable operation information.

[0127] S308, under the condition that the target heat dissipation mode is running in the heat dissipation sequence in the current working cycle, predicts the operating status of the cable in the next working cycle based on the state prediction model that matches the historical state information of the cable.

[0128] S310 adjusts the target heat dissipation mode based on the operating status, and then dissipates heat from the cable in the next working cycle based on the adjusted target heat dissipation mode.

[0129] The specific details of S302-S310 can be found in the aforementioned description and will not be repeated here.

[0130] based on Figure 3 The content shown can determine the actual operating conditions of the cable based on cable operation information. Matching the determined target heat dissipation mode with the actual operating conditions of the cable can improve the accuracy of heat dissipation. When the target heat dissipation mode includes liquid cooling and air cooling, combining liquid cooling and air cooling can improve heat dissipation efficiency. By adjusting the target heat dissipation mode based on the predicted operating status, the heat dissipation mode for the next working cycle can be adjusted in advance. This allows the cable to use a heat dissipation mode that matches the operating conditions of the next working cycle in a timely manner when the next working cycle arrives, thereby improving heat dissipation efficiency.

[0131] As discussed above, cables generate a significant amount of heat during high-power transmission. With the continuous increase in the power of electrical equipment, traditional natural and forced air cooling methods are no longer sufficient to meet the heat dissipation needs of modern cables, especially under complex environmental conditions and large load fluctuations. Excessive heat accumulation accelerates the aging of cable insulation and can even lead to serious safety hazards such as fires or equipment damage. While liquid cooling technology has achieved significant results in high-power electronic equipment, it still presents challenges in cable applications, including complex structures and high installation and maintenance costs.

[0132] Based on the above considerations, the application provides an integrated liquid cooling and air cooling composite heat dissipation system for cable heat dissipation under high load operating conditions. By utilizing the high efficiency heat transfer capability of liquid cooling and the rapid heat dissipation characteristics of air cooling, the surface temperature of the cable can be effectively reduced during operation, preventing equipment failure and damage caused by excessive temperature, and solving the problem of heat accumulation during operation of high-voltage cables and other high-power power equipment. Through automatic optimization of heat dissipation performance, the cable can be operated stably for a long time in complex environments, while reducing energy consumption and maintenance costs, and prolonging the service life of the cable. Especially under continuous high load conditions, the cable overheating phenomenon can be improved, and the safety and stability of the equipment can be improved.

[0133] Compared with the traditional single heat dissipation method (such as using liquid cooling or air cooling alone), the application has a number of significant advantages, specifically: high heat dissipation efficiency: the synergistic work of liquid cooling and air cooling allows heat to be quickly conducted and dissipated, avoiding the efficiency bottleneck of single heat dissipation method, especially suitable for long-time high-load operation of cable heat dissipation demand; significant energy saving effect: through intelligent control, the heat dissipation mode is flexibly switched under different temperature states of the cable, which can quickly respond to temperature rise and reduce system power consumption when the temperature decreases, achieving high efficiency and energy saving; strong adaptability: the system not only applies to conventional environment, but also can maintain stable heat dissipation performance in high temperature, high humidity or other complex industrial environment, ensuring the normal operation of the cable and equipment; high safety and reliability: the automatic temperature control mechanism of the system can avoid damage or fire risk caused by excessive temperature of the cable, greatly improving the safety and reliability of the cable operation, and prolonging the service life of the equipment. Therefore, the cable heat dissipation system provided by the application is widely applicable to high-voltage cables, extra-high voltage cables, data center cables, large-scale substations, power transmission equipment and other power equipment that require efficient heat dissipation. In these high-power, high-load application scenarios, heat dissipation is always a key factor affecting the safety and efficiency of the equipment. Through the cable heat dissipation system provided by the application, the problem of cable failure caused by excessive temperature during long-term operation can be effectively solved, and the overall stability and operating efficiency of the power system can be further improved, which has high industrial application value. Moreover, the design of the cable heat dissipation system of the application has a modular structure, allowing flexible configuration and expansion according to different cable types, power requirements and working environments.

[0134] It should be understood that although each step in the flowchart involved in the above-described embodiments is shown in sequence according to the arrow, these steps are not necessarily executed in the order indicated by the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other orders. Moreover, at least part of the steps in the flowchart involved in the above-described embodiments can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily sequential, but can be alternately or alternately executed with at least part of other steps or steps or stages in other steps.

[0135] Based on the same inventive concept, the embodiments of the present application also provide a cable heat dissipation device for implementing the above-mentioned cable heat dissipation method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more cable heat dissipation device embodiments provided below can refer to the limitations of the cable heat dissipation method described above, which will not be repeated here.

[0136] In one embodiment, as shown in Figure 4 A cable heat dissipation device is provided, comprising: an acquisition module 402, a processing module 404, a determination module 406, a prediction module 408, and an adjustment module 410, wherein:

[0137] The acquisition module 402 is configured to acquire cable operation information of the cable in a current working period; the processing module 404 is configured to determine a target heat dissipation mode of the cable in the current working period based on the cable operation information; the determination module 406 is configured to determine a heat dissipation order matched with the cable operation information in the case that the target heat dissipation mode includes a liquid cooling heat dissipation mode and an air cooling heat dissipation mode; the prediction module 408 is configured to predict an operation state of the cable in a next working period based on a state prediction model matched with historical state information of the cable in the case that the target heat dissipation mode is operated in the heat dissipation order in the current working period; and the adjustment module 410 is configured to adjust the target heat dissipation mode based on the operation state, so as to perform heat dissipation on the cable in the next working period based on the adjusted target heat dissipation mode.

[0138] Each module in the above-mentioned cable heat dissipation device can be realized by software, hardware, and a combination thereof, in whole or in part. Each module described above can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to each module.

[0139] In one embodiment, a computer device is provided, which can be a controller in a cable heat dissipation system, and its internal structure diagram can be as shown inFigure 5 As shown in the figure. The computer device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store cable running information. The network interface of the computer device is used to communicate with external terminals through network connection. The computer program is executed by the processor to implement a cable heat dissipation method.

[0140] Those skilled in the art can understand that, Figure 5 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0141] In one embodiment, a computer device is also provided, including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps in each of the above method embodiments.

[0142] In one embodiment, a computer readable storage medium is provided, which stores a computer program, and the computer program is executed by a processor to implement the steps in each of the above method embodiments.

[0143] In one embodiment, a computer program product is provided, including a computer program, and the computer program is executed by a processor to implement the steps in each of the above method embodiments.

[0144] It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties.

[0145] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the processes of the above-mentioned embodiments of the methods can be included. Any reference to memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0146] Any combination of the technical features of the above embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist, it should be considered as the scope of the present application.

[0147] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A cable heat dissipation system, characterized in that, The cable heat dissipation system includes a liquid cooling system for liquid cooling mode, an air cooling system for air cooling mode, testing equipment, and a controller. The detection equipment is used to acquire cable operation information during the current working cycle; The controller is used to determine the target heat dissipation mode of the cable in the current working cycle based on the cable operation information. When the target heat dissipation mode includes liquid cooling and air cooling, a heat dissipation sequence matching the cable operation information is determined; the heat dissipation sequence is used to characterize the activation order of the liquid cooling and air cooling modes respectively; when the target heat dissipation mode is running in the heat dissipation sequence in the current working cycle, the operating state of the cable in the next working cycle is predicted based on a state prediction model matching the historical state information of the cable. The target heat dissipation mode is adjusted based on the operating status, so as to dissipate heat from the cable in the next working cycle based on the adjusted target heat dissipation mode; The detection device includes a humidity sensor and a temperature sensor; The humidity sensor is used to collect the ambient humidity of the cable during the current working cycle; The temperature sensor is used to collect the cable temperature during the current working cycle. The controller is also used to determine the heat dissipation mode that matches the cable temperature and the ambient humidity as the target heat dissipation mode of the cable in the current working cycle based on the mapping relationship between the preset temperature range, the preset humidity range and the heat dissipation mode.

2. The system according to claim 1, characterized in that, The controller is also used for: When the target heat dissipation mode includes liquid cooling mode and air cooling mode, if the ambient humidity is greater than or equal to a first humidity threshold and less than or equal to a second humidity threshold, then the activation order of the air cooling mode is determined to be higher than the activation order of the liquid cooling mode. If the cable temperature is less than or equal to the temperature difference threshold when the cable is running in the air-cooled heat dissipation mode for a preset duration during the current working cycle, then the liquid cooling system is controlled to start.

3. The system according to claim 1, characterized in that, The controller is also configured to perform any of the following: First item: Based on a state prediction model that matches the historical state information corresponding to the cable, the cable operation information of the cable in the current working cycle is analyzed to predict the operating state of the cable in the next working cycle; the historical state information includes historical operation information within the historical working cycle, and the state prediction model is trained based on the historical operation information. Second item: Based on a state prediction model that matches the historical state information corresponding to the cable, the environmental parameters and energy consumption of the cable in the current working cycle are analyzed to predict the operating state of the cable in the next working cycle; wherein, the historical state information includes the historical energy consumption in the historical working cycle and the historical environmental parameters corresponding to the historical energy consumption, and the state prediction model is trained based on the historical energy consumption and the historical environmental parameters.

4. The system according to claim 1, characterized in that, The cable operating information includes cable temperature; the controller is also used for: Determine the temperature trend between the cable temperature corresponding to the operating state and the cable temperature in the current working cycle; When the temperature trend shows an upward trend, the heat dissipation rate of the liquid cooling system and the air cooling system is increased; If the temperature trend shows a downward trend, the liquid cooling system shall be stopped.

5. The system according to claim 4, characterized in that, The controller is also used for: If the target heat dissipation mode includes liquid cooling, and the temperature trend shows an upward trend, then the air cooling system is activated, and the heat dissipation rate of the liquid cooling system is increased.

6. The system according to claim 1, characterized in that, The liquid cooling system includes a coolant and a radiator; the air cooling system includes a fan; the distance between the fan and the cable is less than or equal to a distance threshold, or the distance between the fan and the radiator is less than or equal to the distance threshold; the detection device includes an environmental sensor. The environmental sensor is used to acquire the ambient air pressure and altitude of the cable during the current working cycle; the cable operation information includes the altitude and the ambient air pressure. The controller is further configured to, when the target heat dissipation mode includes liquid cooling mode and air cooling mode, if the ambient air pressure is less than the air pressure threshold or the altitude is greater than the altitude threshold, control the liquid cooling system to increase the flow rate and / or velocity of the coolant, and control the air cooling system to increase the speed and / or power of the fan, so as to improve the heat dissipation efficiency of the air cooling mode and the liquid cooling mode.

7. The system according to claim 6, characterized in that, The liquid cooling system also includes: a coolant temperature detection device, a heating device, and a cooling device; The coolant temperature detection device is used to detect the temperature of the coolant; The heating device is used to heat the coolant to a first preset temperature when the temperature of the coolant is less than a first set threshold. The cooling device is used to cool the temperature of the coolant to a second preset temperature when the temperature of the coolant is greater than a second preset threshold. The first preset temperature and the second preset temperature are within the preset operating range of the coolant.

8. The system according to claim 1, characterized in that, The system includes multiple thermal imaging cameras; The plurality of thermal imaging cameras are used to detect thermal radiation on the surface of the cable and generate thermal images; The controller is also configured to increase the heat dissipation rate of the liquid cooling system and / or the air cooling system when hot spots are detected based on the thermal image.

9. The system according to claim 6, characterized in that, The liquid cooling system further includes: a coolant pump and a coolant circulation pipe, the coolant circulation pipe being connected to the radiator, the coolant circulation pipe being deployed on the cable surface, or the distance between the coolant circulation pipe and the cable being less than or equal to a set threshold. The coolant pump is used to drive the coolant to circulate in the coolant circulation pipe and maintain the flow rate of the coolant. The coolant circulation pipe is used to transfer the heat generated by the cable absorbed by the coolant to the radiator.

10. A method for heat dissipation of a cable, characterized in that, The method, applied to the cable heat dissipation system according to any one of claims 1 to 9, comprises: Obtain cable operation information during the current working cycle; Based on the cable operation information, the target heat dissipation mode of the cable in the current working cycle is determined; When the target heat dissipation mode includes liquid cooling and air cooling, a heat dissipation sequence matching the cable operation information is determined; the heat dissipation sequence is used to characterize the activation order of the liquid cooling mode and the air cooling mode respectively. If the target heat dissipation mode is operated in the heat dissipation sequence in the current working cycle, the operating state of the cable in the next working cycle is predicted based on a state prediction model that matches the historical state information of the cable. The target heat dissipation mode is adjusted based on the operating status, so as to dissipate heat from the cable in the next working cycle based on the adjusted target heat dissipation mode; The cable operation information includes the ambient humidity and cable temperature during the current working cycle. Determining the target heat dissipation mode of the cable during the current working cycle based on the cable operation information includes: determining the heat dissipation mode that matches the cable temperature and the ambient humidity as the target heat dissipation mode of the cable during the current working cycle based on the mapping relationship between the preset temperature range, the preset humidity range and the heat dissipation mode.

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