A multi-charging pile heat dissipation control combined analysis method, system, terminal and medium

Abstract

The application discloses a kind of multi-charging pile heat dissipation control joint analysis method, system, terminal and medium, it is related to charging pile technical field, its technical solution main point is: the operating state data of reference charging pile is collected;According to the subsequent temperature variation trend of heat dissipation control stage, the maximum charging time when temperature reaches temperature upper limit value is analyzed;The subsequent temperature variation trend of free heat dissipation stage and heat dissipation control stage in charging temperature variation data is compared, to determine reference charging time;Correlation function of the mapping relationship of the representation power corresponding to the reference starting temperature is constructed;The estimated charging time is input into correlation function, and the target output power is calculated;When temperature reaches reference starting temperature, control the heat dissipation equipment of target charging pile to run at target output power.The application can quickly determine the target output power and starting time of the heat dissipation equipment configured by target charging pile, not only reduces the adjustment frequency of heat dissipation equipment, but also can guarantee the safe and stable operation of heat dissipation equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging piles, more particularly, it relates to a multi-charging pile heat dissipation control joint analysis method, system, terminal and medium. BACKGROUND

[0002] With the popularization of new energy vehicles, the demand for charging pile construction is increasing. Direct current charging piles have large power and fast charging speed, but also generate a large amount of heat. If the heat cannot be dissipated in time, it will cause the internal temperature of the charging pile to rise, affecting the charging efficiency, and even may cause safety accidents.

[0003] At present, the heat dissipation control of the charging pile is generally carried out for a single charging pile, and the heat dissipation output power of the configured heat dissipation equipment is mainly affected by environmental factors, charging pile output power, charging time and charging pile structure design and other factors. The existing technology records the application of heat transfer effect and aerodynamics to calculate the heat dissipation output power of the heat dissipation equipment, but due to the consideration of many factors, the complexity of the calculation is high. In addition, the collection of multi-source data also requires the configuration of more sensor equipment, such as environmental temperature monitoring. In addition, the existing technology also records real-time monitoring of the real-time temperature information of the charging pile, and dynamically adjusts the heat dissipation output power of the heat dissipation equipment according to the real-time temperature information, so that the real-time temperature information of the charging pile does not exceed the safe temperature. However, this process needs to frequently adjust the heat dissipation equipment, which reduces the service life of the heat dissipation equipment to a certain extent, and this process is prone to unreasonable adjustment of the starting time of the heat dissipation equipment and the size of the heat dissipation output power, which causes the heat dissipation equipment to run overload and is prone to operation failure.

[0004] Therefore, how to research and design a multi-charging pile heat dissipation control joint analysis method, system, terminal and medium that can overcome the above defects is a problem we need to solve urgently. SUMMARY

[0005] In order to solve the problems in the prior art, the purpose of the present application is to provide a multi-charging pile heat dissipation control joint analysis method, system, terminal and medium, which can quickly determine the target output power and starting time of the heat dissipation equipment configured for the target charging pile, not only reducing the adjustment frequency of the heat dissipation equipment, but also ensuring the safe and stable operation of the heat dissipation equipment.

[0006] The above technical purpose of the present application is realized by the following technical scheme:

[0007] In a first aspect, a multi-charging pile heat dissipation control joint analysis method is provided, comprising the following steps:

[0008] Collect operation state data of a plurality of reference charging piles in a same control cycle, the operation state data of each reference charging pile comprising charging temperature variation data and heat dissipation output power;

[0009] Extract a charging start temperature of the corresponding reference charging pile from the charging temperature variation data, and analyze a maximum charging time when the temperature of the corresponding reference charging pile reaches the temperature upper limit value according to a subsequent temperature variation trend of the heat dissipation control stage in the charging temperature variation data;

[0010] Compare the subsequent temperature variation trends of the free heat dissipation stage and the heat dissipation control stage in the charging temperature variation data, and determine a reference charging time converted from the maximum charging time under the same heat dissipation output power control after the charging start temperature is converted into the reference start temperature;

[0011] Take the reference charging time of each reference charging pile as the horizontal coordinate and the heat dissipation output power of the corresponding reference charging pile as the vertical coordinate, and construct a correlation function representing the power-time mapping relationship corresponding to the reference start temperature;

[0012] Determine an estimated charging time of the target charging pile in the same control cycle, and input the estimated charging time into the correlation function to calculate a target output power of the target charging pile;

[0013] When the temperature of the target charging pile reaches the reference start temperature in the charging state, control the heat dissipation device of the target charging pile to operate at the target output power to realize heat dissipation control of the target charging pile in the charging stage.

[0014] Further, the control cycle is updated in a window sliding manner, and the time width of the sliding window remains unchanged;

[0015] And, the charging start and end times of the reference charging pile and the target charging pile are located in the corresponding control cycle.

[0016] Further, the free heat dissipation stage is a time period between the start of the work of the charging pile and the start of the work of the heat dissipation device;

[0017] And, the heat dissipation control stage is a time period between the start of the work of the heat dissipation device and the end of the work of the charging pile.

[0018] Further, the analysis process of the maximum charging time is specifically:

[0019] According to the temperature variation data corresponding to the heat dissipation control stage in the charging temperature variation data, a subsequent temperature variation trend is predicted and analyzed to obtain a second temperature prediction curve;

[0020] Take the time corresponding to the intersection between the second temperature prediction curve and the horizontal line of the temperature upper limit value as the maximum charging time.

[0021] Further, the determination process of the reference charging time is specifically:

[0022] According to the temperature change data corresponding to the free heat dissipation stage in the charging temperature change data, a first temperature prediction curve is obtained by predicting and analyzing the subsequent temperature change trend.

[0023] According to the temperature change data corresponding to the heat dissipation control stage in the charging temperature change data, a second temperature prediction curve is obtained by predicting and analyzing the subsequent temperature change trend.

[0024] Taking the intersection between the first temperature prediction curve and the horizontal line where the reference starting temperature is located as the first intersection point.

[0025] Taking the intersection between the second temperature prediction curve and the horizontal line where the reference starting temperature is located as the second intersection point.

[0026] Moving the temperature change data after the second intersection point from the second temperature prediction curve and the temperature change data corresponding to the heat dissipation control stage to the first intersection point.

[0027] Taking the time corresponding to the intersection between the moved second temperature prediction curve and the horizontal line where the temperature upper limit value is located as the reference charging time.

[0028] Further, the determination process of the reference starting temperature is specifically:

[0029] Selecting multiple reference charging piles whose temperatures do not reach the temperature upper limit value when the charging piles stop working as effective charging piles.

[0030] Selecting the maximum temperature value in the temperature interval greater than the charging starting temperature of all effective charging piles and less than the temperature upper limit value as the reference starting temperature.

[0031] If no temperature interval is formed, the reference starting temperature is determined by iteratively reducing the number of effective charging piles.

[0032] Further, the determination process of the estimated charging time is specifically:

[0033] According to the actual charging power of the target charging pile and the to-be-charged amount of the to-be-charged vehicle in the order received by the target charging pile, the estimated charging time is determined.

[0034] In a second aspect, a multi-charging pile heat dissipation control joint analysis system is provided, which is used to implement the multi-charging pile heat dissipation control joint analysis method according to any one of the first aspect, and includes:

[0035] A data acquisition module is configured to acquire operation state data of multiple reference charging piles in the same control period, and the operation state data of each reference charging pile includes charging temperature change data and heat dissipation output power.

[0036] The time prediction module is configured to extract a charging start temperature of a corresponding reference charging pile from the charging temperature variation data, and analyze a maximum charging time for the corresponding reference charging pile to reach the temperature upper limit value according to a subsequent temperature variation trend of the heat dissipation control stage in the charging temperature variation data.

[0037] The data conversion module is configured to compare the subsequent temperature variation trends of the free heat dissipation stage and the heat dissipation control stage in the charging temperature variation data, and determine a reference charging time converted from the maximum charging time under the same heat dissipation output power control after the charging start temperature is converted into the reference start temperature.

[0038] The function construction module is configured to construct a correlation function representing the power-time mapping relationship corresponding to the reference start temperature, with the reference charging time of each reference charging pile as the horizontal coordinate and the heat dissipation output power of the corresponding reference charging pile as the vertical coordinate.

[0039] The power calculation module is configured to determine an estimated charging time of the target charging pile in the same control period, and input the estimated charging time into the correlation function to calculate the target output power of the target charging pile.

[0040] The heat dissipation control module is configured to control the heat dissipation device of the target charging pile to operate at the target output power when the temperature of the target charging pile in the charging state reaches the reference start temperature, so as to realize the heat dissipation control of the target charging pile in the charging stage.

[0041] In a third aspect, a computer terminal is provided, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the method of any one of the first aspect when executing the program.

[0042] In a fourth aspect, a computer readable medium is provided, which stores a computer program executable by a processor to implement the method of any one of the first aspect.

[0043] Compared with the prior art, the present application has the following beneficial effects:

[0044] 1. The multi-charging pile heat dissipation control joint analysis method provided by the application, based on the structural design of multiple charging piles in a charging station, environmental conditions and the current situation that the output power of the charging piles is basically the same, the application extracts the correlation function representing the power-time mapping relationship from the operation state data of multiple reference charging piles in the same control period, and obtains the corresponding reference starting temperature, after determining the estimated charging time of the target charging pile in the same control period, the target output power and starting time of the heat dissipation equipment configured for the target charging pile can be quickly determined, which not only reduces the adjustment frequency of the heat dissipation equipment, but also ensures the safe and stable operation of the heat dissipation equipment.

[0045] 2. The application realizes efficient use of heat dissipation output power by analyzing the subsequent temperature change trend of the heat dissipation control stage in the charging temperature change data, and converting the charging starting temperature into a reference starting temperature while maintaining data consistency.

[0046] 3. The application considers that the temperature of the charging pile reaches a constant state in the charging stage and does not exceed the temperature upper limit value, which means that the heat dissipation output power is large and there is a certain waste of resources, therefore, by selecting the maximum temperature value in the temperature range greater than the charging starting temperature of all effective charging piles and less than the temperature upper limit value as the reference starting temperature, the efficiency maximization of the heat dissipation output power is further realized. BRIEF DESCRIPTION OF DRAWINGS

[0047] The drawings described herein are used to provide further understanding of the embodiments of the application, constitute a part of the application, and do not constitute a limitation on the embodiments of the application. In the drawings:

[0048] Figure 1 is a flowchart in embodiment 1 of the application;

[0049] Figure 2 is an analysis diagram of the maximum charging time in embodiment 1 of the application;

[0050] Figure 3 is an analysis diagram of the reference charging time in embodiment 1 of the application;

[0051] Figure 4 is a system block diagram in embodiment 2 of the application. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical scheme and advantages of the application more clear and obvious, the application is further described in detail below in combination with embodiments and drawings, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute a limitation on the application.

[0053] Embodiment 1: A multi-charging pile heat dissipation control joint analysis method, as shown in Figure 1As shown, comprising the following steps:

[0054] S1: Collecting operation state data of a plurality of reference charging piles in a same control period, the operation state data of each reference charging pile comprising charging temperature variation data and heat dissipation output power;

[0055] S2: Extracting a charging starting temperature of a corresponding reference charging pile from the charging temperature variation data, and analyzing a maximum charging time for the temperature of the corresponding reference charging pile to reach an upper limit value of temperature according to a subsequent temperature variation trend of a heat dissipation control stage in the charging temperature variation data;

[0056] S3: Comparing the subsequent temperature variation trends of the free heat dissipation stage and the heat dissipation control stage in the charging temperature variation data, determining a reference charging time converted from the maximum charging time under the same heat dissipation output power control after the charging starting temperature is converted into the reference starting temperature;

[0057] S4: Constructing a correlation function of a mapping relationship between a characteristic power and time corresponding to the reference starting temperature, taking the reference charging time of each reference charging pile as an abscissa and the heat dissipation output power of the corresponding reference charging pile as an ordinate;

[0058] S5: Determining an estimated charging time of a target charging pile in a same control period, and inputting the estimated charging time into the correlation function to calculate a target output power of the target charging pile;

[0059] S6: When the temperature of the target charging pile in a charging state reaches the reference starting temperature, controlling the heat dissipation equipment of the target charging pile to operate at the target output power, so as to realize heat dissipation control of the target charging pile in a charging stage.

[0060] In step S1, the regions of the plurality of reference charging piles are generally distributed in a same charging station or a same region with a short distance, and the structural designs of the plurality of reference charging piles are consistent, so that the operation state data of the plurality of reference charging piles in a same control period can be mined and analyzed, and the influence of environmental condition changes and structural design on heat dissipation output power can be effectively reduced.

[0061] The charging temperature variation data contains temperature information from the beginning of charging to the end of charging, and a corresponding temperature variation curve can be established by taking time as an abscissa and temperature as an ordinate.

[0062] In the embodiment, the control period is updated in a window sliding manner, and the time width of the sliding window remains unchanged; and the charging start and end times of the reference charging pile and the target charging pile are located in the corresponding control period.

[0063] The control period is generally 1-12 hours. For a charging pile with large charging output power, the time corresponding to the control period is relatively short, such as 1 hour; and for a charging pile with small charging output power, the time corresponding to the control period is relatively long, such as 6 hours.

[0064] In step S2, the free heat dissipation stage is a time period between the start of the work of the charging pile and the start of the work of the heat dissipation device; and the heat dissipation control stage is a time period between the start of the work of the heat dissipation device and the end of the work of the charging pile.

[0065] The analysis process of the maximum charging time is specifically: the subsequent temperature variation trend is predicted and analyzed according to the temperature variation data corresponding to the heat dissipation control stage in the charging temperature variation data, to obtain a second temperature prediction curve; and the time corresponding to the intersection between the second temperature prediction curve and the horizontal line of the temperature upper limit value is taken as the maximum charging time.

[0066] As shown in Figure 2 , the time when the heat dissipation device starts to work is t0, the temperature of the reference charging pile when the heat dissipation device starts to work is T0; the subsequent temperature variation trend of the heat dissipation control stage P is the dotted line segment corresponding to P1, the time when the charging pile ends to work is t s , and the temperature corresponding to the end of the work of the charging pile is T s ; through the prediction analysis, the time when the charging pile continues to run and reaches the temperature upper limit value is t max , and the corresponding temperature upper limit value is T max .

[0067] In step S3, the determination process of the reference charging time is specifically: the subsequent temperature variation trend is predicted and analyzed according to the temperature variation data corresponding to the free heat dissipation stage in the charging temperature variation data, to obtain a first temperature prediction curve; the subsequent temperature variation trend is predicted and analyzed according to the temperature variation data corresponding to the heat dissipation control stage in the charging temperature variation data, to obtain a second temperature prediction curve; the intersection between the first temperature prediction curve and the horizontal line of the reference starting temperature is taken as a first intersection point; the intersection between the second temperature prediction curve and the horizontal line of the reference starting temperature is taken as a second intersection point; the second temperature prediction curve and the temperature variation data corresponding to the heat dissipation control stage and located behind the second intersection point are moved from the second intersection point to the first intersection point; and the time corresponding to the intersection between the moved second temperature prediction curve and the horizontal line of the temperature upper limit value is taken as the reference charging time.

[0068] As shown in Figure 2 and Figure 3 , the subsequent temperature variation trend of the free heat dissipation stage M is the dotted line segment corresponding to M1, that is, M1 is the first temperature prediction curve, and P1 is the second temperature prediction curve; the reference starting temperature is T a ; the first intersection point is d1, and the corresponding time is tb ; the second intersection is d2, and the corresponding time is t c ; the reference charging time after movement is t max -(t c -t b ).

[0069] The subsequent temperature change trend can be fitted and predicted by using the least square method, or can be realized by using a curve estimation method, which is not limited here.

[0070] The determination process of the reference starting temperature is specifically: selecting multiple reference charging piles whose temperatures do not reach the temperature upper limit value when the charging piles stop working as effective charging piles; selecting the maximum temperature value in the temperature interval greater than the charging starting temperature of all effective charging piles and less than the temperature upper limit value as the reference starting temperature; if no temperature interval is formed, the reference starting temperature is determined by iteratively reducing the number of effective charging piles.

[0071] For example, the intersection of all temperature intervals can be solved, and the upper limit value in the intersection can be taken as the reference starting temperature.

[0072] In step S4, the correlation function can be a linear function or a nonlinear function, such as obtained by linear fitting or polynomial fitting.

[0073] In step S5, the determination process of the estimated charging time is specifically: determining the estimated charging time according to the actual charging power of the target charging pile and the to-be-charged amount of the to-be-charged vehicle in the received order of the target charging pile.

[0074] In addition, the probability distribution of obtaining orders of each target charging pile and the charging time of each order can also be calculated according to the number of charging orders, and the estimated charging time of continuous charging of the target charging pile can be calculated by weight.

[0075] In addition, the estimated charging time can also be determined in other ways described in the prior art, which is not limited here.

[0076] In step S6, the heat dissipation device can perform heat dissipation treatment on the charging process of the target charging pile with a fixed and unchanged heat dissipation output power, and the heat dissipation output power is recalculated when an order is completed or the non-charging state reaches a certain time interval before recharging.

[0077] It should be noted that the heat dissipation output power can be the operating power of the heat dissipation device, or other working state quantities of the heat dissipation device can be converted to represent, such as air volume, cooling water flow, etc.

[0078] Embodiment 2: A multi-charging pile heat dissipation control joint analysis system, which is used to realize a multi-charging pile heat dissipation control joint analysis method as described in embodiment 1, such asFigure 4 As shown, it comprises a data acquisition module, a time prediction module, a data conversion module, a function construction module, a power calculation module and a heat dissipation control module.

[0079] The data acquisition module is configured to acquire operation state data of a plurality of reference charging piles in a same control period, and the operation state data of each reference charging pile comprises charging temperature variation data and heat dissipation output power. The time prediction module is configured to extract a charging starting temperature of a corresponding reference charging pile from the charging temperature variation data, and analyze a maximum charging time for the temperature of the corresponding reference charging pile to reach an upper limit value of temperature according to a subsequent temperature variation trend of a heat dissipation control stage in the charging temperature variation data. The data conversion module is configured to compare the subsequent temperature variation trends of the free heat dissipation stage and the heat dissipation control stage in the charging temperature variation data, and determine a reference charging time converted from the maximum charging time under the same heat dissipation output power control after the charging starting temperature is converted into a reference starting temperature. The function construction module is configured to construct an associated function representing a power-time mapping relationship corresponding to the reference starting temperature, taking the reference charging time of each reference charging pile as the abscissa and the heat dissipation output power of the corresponding reference charging pile as the ordinate. The power calculation module is configured to determine an estimated charging time of a target charging pile in the same control period, and input the estimated charging time into the associated function to calculate a target output power of the target charging pile. The heat dissipation control module is configured to control the heat dissipation device of the target charging pile to operate at the target output power when the temperature of the target charging pile in the charging state reaches the reference starting temperature, so as to realize heat dissipation control of the target charging pile in the charging stage.

[0080] The application further discloses a computer terminal, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor realizes the multi-charging pile heat dissipation control joint analysis method according to the embodiment 1 when executing the program.

[0081] The application further discloses a computer readable medium, which stores a computer program, and the computer program can realize the multi-charging pile heat dissipation control joint analysis method according to the embodiment 1 when executed by a processor.

[0082] Working principle: based on the structural design of multiple charging piles in a charging station, environmental conditions and the fact that the output powers of the charging piles are basically the same, the application mines an associated function representing a power-time mapping relationship from operation state data of multiple reference charging piles in a same control period, and obtains a corresponding reference starting temperature.

[0083] Those skilled in the art will appreciate that embodiments of the application can be readily used as software, hardware, or a combination of software and hardware. In one

[0084] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or a combination thereof. These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or a combination thereof. These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks.

[0085] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or a combination thereof. These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or a combination thereof. These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks.

[0086] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or a combination thereof. These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or a combination thereof. These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks.

[0087] The above detailed description has shown, described, and pointed out the aspects of the application in sufficient detail, that others skilled in the art can follow the present application. It is understood that various modifications can be made to the procedures, systems, and computer program products described herein, and such modifications are meant to be included within the scope of the application. Therefore, the scope of the application should be determined by the following claims, rather than by the detailed description and proce

Claims

1. A multi-charging pile heat dissipation control combined analysis method, characterized by, The method comprises the following steps: Collecting operation state data of a plurality of reference charging piles in a same control period, the operation state data of each reference charging pile comprising charging temperature variation data and heat dissipation output power; Extracting a charging starting temperature of a corresponding reference charging pile from the charging temperature variation data, and analyzing a maximum charging time for the temperature of the corresponding reference charging pile to reach an upper limit value of temperature according to a subsequent temperature variation trend of a heat dissipation control stage in the charging temperature variation data; Comparing the subsequent temperature variation trends of the free heat dissipation stage and the heat dissipation control stage in the charging temperature variation data to determine a reference charging time converted from the maximum charging time under the same heat dissipation output power control after the charging starting temperature is converted into a reference starting temperature; Constructing a correlation function representing a power-time mapping relationship corresponding to the reference starting temperature by taking the reference charging time of each reference charging pile as the abscissa and the heat dissipation output power of the corresponding reference charging pile as the ordinate; Determining an estimated charging time of a target charging pile in the same control period, and inputting the estimated charging time into the correlation function to calculate a target output power of the target charging pile; When the temperature of the target charging pile reaches the reference starting temperature in the charging state, controlling the heat dissipation equipment of the target charging pile to operate at the target output power to realize heat dissipation control of the target charging pile in the charging stage; The analysis process of the maximum charging time is specifically as follows: Performing prediction analysis on the subsequent temperature variation trend according to the temperature variation data corresponding to the heat dissipation control stage in the charging temperature variation data to obtain a second temperature prediction curve; Taking a time corresponding to an intersection between the second temperature prediction curve and a horizontal line where the upper limit value of temperature is located as the maximum charging time; The determination process of the reference charging time is specifically as follows: Performing prediction analysis on the subsequent temperature variation trend according to the temperature variation data corresponding to the free heat dissipation stage in the charging temperature variation data to obtain a first temperature prediction curve; Performing prediction analysis on the subsequent temperature variation trend according to the temperature variation data corresponding to the heat dissipation control stage in the charging temperature variation data to obtain a second temperature prediction curve; Taking an intersection between the first temperature prediction curve and a horizontal line where the reference starting temperature is located as a first intersection point; Taking an intersection between the second temperature prediction curve and the horizontal line where the reference starting temperature is located as a second intersection point; Moving the second temperature prediction curve and the temperature variation data corresponding to the heat dissipation control stage after the second intersection point to the first intersection point from the second intersection point; Taking a time corresponding to an intersection between the moved second temperature prediction curve and the horizontal line where the upper limit value of temperature is located as the reference charging time; The determination process of the reference starting temperature is specifically as follows: Selecting a plurality of reference charging piles whose temperatures do not reach the upper limit value of temperature when the charging piles stop working as effective charging piles; Selecting a maximum temperature value in a temperature interval greater than the charging starting temperature of all the effective charging piles and less than the upper limit value of temperature as the reference starting temperature; If no temperature interval is formed, the reference starting temperature is determined through iterative determination by reducing the number of effective charging piles.

2. The multi-charging pile heat dissipation control joint analysis method according to claim 1, characterized in that, The control period is updated in a window sliding manner, and the time width of the sliding window remains unchanged; And, the charging start and end times of the reference charging pile and the target charging pile are located in the corresponding control period.

3. The multi-charging pile heat dissipation control joint analysis method according to claim 1, characterized in that, The free heat dissipation stage is a time period between when the charging pile starts to work and when the heat dissipation device starts to work. The heat dissipation control stage is a time period between when the heat dissipation device starts to work and when the charging pile stops to work.

4. The multi-charging pile heat dissipation control joint analysis method according to claim 1, characterized in that, The determination process of the estimated charging time is specifically: The estimated charging time is determined according to the actual charging power of the target charging pile and the to-be-charged quantity of the to-be-charged vehicle in the order received by the target charging pile.

5. A multi-charging pile heat dissipation control combined analysis system, characterized in that, The system is used to implement the multi-charging pile heat dissipation control joint analysis method according to any one of claims 1-4, comprising: A data acquisition module is configured to acquire operation state data of a plurality of reference charging piles in a same control period, wherein the operation state data of each reference charging pile includes charging temperature variation data and heat dissipation output power; A time prediction module is configured to extract a charging starting temperature of a corresponding reference charging pile from the charging temperature variation data, and analyze a maximum charging time of the corresponding reference charging pile when the temperature reaches an upper limit value according to a subsequent temperature variation trend of the heat dissipation control stage in the charging temperature variation data; A data conversion module is configured to compare the subsequent temperature variation trends of the free heat dissipation stage and the heat dissipation control stage in the charging temperature variation data, and determine a reference charging time converted from the maximum charging time under the same heat dissipation output power control after the charging starting temperature is converted into a reference starting temperature; A function construction module is configured to construct a correlation function representing a power-time mapping relationship corresponding to the reference starting temperature, taking the reference charging time of each reference charging pile as an abscissa and the heat dissipation output power of the corresponding reference charging pile as an ordinate; A power calculation module is configured to determine an estimated charging time of a target charging pile in the same control period, and input the estimated charging time into the correlation function to calculate a target output power of the target charging pile; A heat dissipation control module is configured to control the heat dissipation device of the target charging pile to operate at the target output power when the temperature of the target charging pile in the charging state reaches the reference starting temperature, so as to realize heat dissipation control of the target charging pile in the charging stage.

6. A computer terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, The processor implements the multi-charging pile heat dissipation control joint analysis method according to any one of claims 1-4 when executing the program.

7. A computer readable medium having stored thereon a computer program, characterized in that The computer program is executed by the processor to implement the multi-charging pile heat dissipation control joint analysis method according to any one of claims 1-4.

Images