An automobile charging pile performance test system and a test method

Abstract

The application relates to a kind of automobile charging pile performance test system and test method, it relates to charging pile performance test technical field, the method comprises: according to the geographic position of the first service area of multiple automobile charging piles distribution and its load in the first predetermined time period, the first service area is divided into multiple second service areas;Definition target automobile charging pile belongs to the second service area of target service area, obtains the anti-interference wiring specification parameter and the anti-interference degree of target automobile charging pile, to determine the cooperative anti-interference value of target service area;In combination with environmental parameters and cooperative anti-interference value, determine the first performance test result of target service area;In combination with the working condition parameter of target automobile charging pile and first performance test result, determine the second performance test result of target automobile charging pile, to evaluate the performance of target automobile charging pile.The application can improve test efficiency and accuracy, and can support long-term performance evaluation and optimization.

Description

Technical Field

[0001] This application relates to the field of charging pile performance testing technology, and in particular to a vehicle charging pile performance testing system and testing method. Background Technology

[0002] With the rapid development of new energy vehicles, charging piles, as core infrastructure, directly affect user experience and power grid safety in terms of performance and reliability. At present, the performance testing of car charging piles mainly relies on traditional testing equipment, such as multimeters, oscilloscopes, power analyzers and other scattered instruments. Parameter measurement and data analysis are carried out manually, which has problems such as low testing efficiency and low level of intelligence. Moreover, the test data is stored in a scattered manner and lacks a unified analysis platform, making it difficult to support long-term performance evaluation and optimization. Summary of the Invention

[0003] Therefore, it is necessary to provide a vehicle charging pile performance testing system and method that can improve the efficiency and accuracy of performance testing, addressing the aforementioned technical problems.

[0004] Firstly, a method for testing the performance of a car charging station is provided, the method comprising:

[0005] A first service area is determined by the distribution of multiple car charging piles. Based on the geographical location of the first service area and the load of the first service area within a first preset time period, the first service area is divided into multiple second service areas, wherein the second service areas are sub-service areas of the first service area.

[0006] Determine the second service area to which the target electric vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging station;

[0007] Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, the cooperative immunity value of the target service area is determined;

[0008] Obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area;

[0009] The operating parameters of the target vehicle charging pile are obtained, and the second performance test result of the target vehicle charging pile is determined by combining the operating parameters and the first performance test result, so as to evaluate the performance of the target vehicle charging pile.

[0010] Optionally, based on the geographical location of the first service area and the load of the first service area within a first preset time period, the first service area is divided into multiple second service areas, including:

[0011] Based on the geographical location of the first service area, determine whether the first service area is a residential area;

[0012] In response to the fact that the first service area is a residential area and the load of the first service area in the first preset time period is greater than the first preset threshold, the load of each car charging pile in the first service area in the first preset time period is obtained.

[0013] Based on the load of each car charging pile in the first preset time period, each car charging pile is sorted, and the identifier of each car charging pile is determined according to the sorting result.

[0014] Based on the number of identifiers and the number of grade divisions, the grade to which each car charging station belongs is determined, and the service area to which the car charging station belongs under the same grade is defined as the second service area.

[0015] Optionally, dividing the first service area into multiple second service areas based on the geographical location of the first service area and the load of the first service area within a first preset time period further includes:

[0016] In response to the first service area being a non-residential area and / or the load of the first service area within a first preset time period being less than or equal to a first preset threshold, the load of each car charging pile in the first service area within the first preset time period is obtained.

[0017] In response to the absolute value of the difference between the maximum load and the minimum load in the first service area being greater than a second preset threshold, each car charging pile is sorted based on its load in a first preset time period, and the identifier of each car charging pile is determined according to the sorting result.

[0018] Based on the number of identifiers and the number of grade divisions, the grade to which each car charging pile belongs is determined, and the service area to which the car charging piles under the same grade belong is defined as the second service area.

[0019] In response to the absolute value of the difference between the maximum and minimum load in the first service area being less than or equal to a second preset threshold, the first service area is divided based on a grid partitioning mechanism to generate multiple second service areas.

[0020] Optionally, determining the second service area to which the target charging station belongs, defining the second service area as the target service area, and obtaining the anti-interference wiring specification parameters and immunity of the target charging station include:

[0021] Identify the target vehicle charging station to be tested, determine the second service area to which the target vehicle charging station belongs, and define the second service area as the target service area.

[0022] Obtain the anti-interference wiring specification parameters of the target electric vehicle charging pile, and determine the anti-interference level of the target electric vehicle charging pile based on the anti-interference wiring specification parameters of the target electric vehicle charging pile.

[0023] Optionally, determining the immunity of the target electric vehicle charging station based on its anti-interference wiring specification parameters includes:

[0024] Based on the anti-interference wiring specification parameters and interference coupling model of the target electric vehicle charging station, the immunity of the target electric vehicle charging station is determined. The interference coupling model includes:

[0025] P = ω1U1 + ω2U2

[0026]

[0027] Where P represents the interference coupling coefficient, U1 represents the received power, U2 represents the noise voltage, ω1 and ω2 both represent weighting coefficients, L represents the electric field strength of the incident electromagnetic wave, σ represents the wavelength of the electromagnetic wave, C represents the cable length, q represents the free space wave impedance, Y represents the noise current coupled to the cable, and Z represents the coupling path impedance.

[0028] Based on the aforementioned anti-interference cabling specification parameters, the anti-interference coefficient is determined;

[0029] The difference between the anti-interference coefficient and the interference coupling coefficient is defined as the anti-interference degree of the target car charging pile, and the difference is the value obtained by subtracting the interference coupling coefficient from the anti-interference coefficient.

[0030] Optionally, determining the cooperative immunity value of the target service area based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile includes:

[0031] Based on the consistency of the anti-interference wiring specification parameters of multiple target car charging piles in the target service area, the anti-interference correction coefficient of the target car charging pile is determined.

[0032] The layout parameters of multiple target electric vehicle charging piles in the target service area are obtained. Based on the layout parameters and a cooperative immunity value calculation function, the cooperative immunity value of the target service area is determined. The cooperative immunity value calculation function includes:

[0033]

[0034] Where V represents the cooperative disturbance rejection value, x nθ represents the immunity correction factor for the nth target electric vehicle charging station, m represents the number of target electric vehicle charging stations, and θ represents the interference correction factor for the nth target electric vehicle charging station. n U represents the weighting coefficient. n Q represents the immunity of the nth target electric vehicle charging station, k represents the layout coordination coefficient, and Q represents the interference resistance. nt C represents the distance between the nth target charging station and the tth target charging station. n C represents the cable length of the nth target car charging station. t Let a represent the cable length of the t-th target car charging station. max Indicates the maximum permissible continuous safe current, a n (t) represents the load current of the nth target car charging station at time t.

[0035] Optionally, obtaining environmental parameters of the target service area and combining the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area includes:

[0036] Based on the environmental parameters of the target service area, the cooperative anti-interference value, and the first performance evaluation model, a first performance evaluation value for the target service area is determined. The first performance evaluation model includes:

[0037]

[0038] Where V2 represents the first performance evaluation value, γ1, γ2, and γ3 all represent weighting coefficients, ε represents the temperature decay coefficient, T represents the ambient temperature, S1 represents the standard value of humidity, S represents the ambient humidity, W1 represents the standard value of pollution level, and W represents the environmental pollution level.

[0039] The first performance evaluation value is defined as the first performance test result of the target service area.

[0040] Optionally, obtaining the operating condition parameters of the target vehicle charging station, and combining the operating condition parameters with the first performance test result, determines the second performance test result of the target vehicle charging station, including:

[0041] Based on the operating parameters, the first performance test results, and the second performance evaluation model, a second performance evaluation value for the target vehicle charging pile is determined. The second performance evaluation model includes:

[0042]

[0043] Where V3 represents the second performance evaluation value, f represents the number of operating parameters, and w g This represents the weight of the g-th operating condition parameter. This indicates the degree of degradation of the nth target car charging pile under the gth operating condition parameter;

[0044] The second performance evaluation value is defined as the second performance test result of the target car charging station.

[0045] Optionally, evaluating the performance of the target vehicle charging station includes:

[0046] If the second performance evaluation value is less than the third preset threshold for a period of time that is greater than the fourth preset threshold within the second preset time period, it is determined that the performance of the target car charging pile is in an unstable state.

[0047] Secondly, a vehicle charging pile performance testing system is provided, the system comprising:

[0048] The first determining module is used to determine a first service area where multiple car charging piles are distributed, and to divide the first service area into multiple second service areas based on the geographical location of the first service area and the load of the first service area within a first preset time period, wherein the second service area is a sub-service area of ​​the first service area.

[0049] The second determining module is used to determine the second service area to which the target electric vehicle charging pile belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging pile;

[0050] The third determining module is used to determine the cooperative anti-interference value of the target service area based on the anti-interference wiring specification parameters and anti-interference degree of the target car charging pile;

[0051] The fourth determining module is used to obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area;

[0052] The performance evaluation module is used to obtain the operating condition parameters of the target car charging pile, and combine the operating condition parameters with the first performance test results to determine the second performance test results of the target car charging pile, so as to evaluate the performance of the target car charging pile.

[0053] Thirdly, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the following steps:

[0054] A first service area is determined by the distribution of multiple car charging piles. Based on the geographical location of the first service area and the load of the first service area within a first preset time period, the first service area is divided into multiple second service areas, wherein the second service areas are sub-service areas of the first service area.

[0055] Determine the second service area to which the target electric vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging station;

[0056] Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, the cooperative immunity value of the target service area is determined;

[0057] Obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area;

[0058] The operating parameters of the target vehicle charging pile are obtained, and the second performance test result of the target vehicle charging pile is determined by combining the operating parameters and the first performance test result, so as to evaluate the performance of the target vehicle charging pile.

[0059] Fourthly, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0060] A first service area is determined by the distribution of multiple car charging piles. Based on the geographical location of the first service area and the load of the first service area within a first preset time period, the first service area is divided into multiple second service areas, wherein the second service areas are sub-service areas of the first service area.

[0061] Determine the second service area to which the target electric vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging station;

[0062] Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, the cooperative immunity value of the target service area is determined;

[0063] Obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area;

[0064] The operating parameters of the target vehicle charging pile are obtained, and the second performance test result of the target vehicle charging pile is determined by combining the operating parameters and the first performance test result, so as to evaluate the performance of the target vehicle charging pile.

[0065] Fifthly, a computer program product is provided, the computer program product comprising a computer program, which, when executed by a processor, performs the following steps:

[0066] A first service area is determined by the distribution of multiple car charging piles. Based on the geographical location of the first service area and the load of the first service area within a first preset time period, the first service area is divided into multiple second service areas, wherein the second service areas are sub-service areas of the first service area.

[0067] Determine the second service area to which the target electric vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging station;

[0068] Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, the cooperative immunity value of the target service area is determined;

[0069] Obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area;

[0070] The operating parameters of the target vehicle charging pile are obtained, and the second performance test result of the target vehicle charging pile is determined by combining the operating parameters and the first performance test result, so as to evaluate the performance of the target vehicle charging pile.

[0071] The aforementioned vehicle charging pile performance testing system and method include the following steps: determining a first service area where multiple vehicle charging piles are distributed; dividing the first service area into multiple second service areas based on the geographical location of the first service area and the load of the first service area within a first preset time period, wherein the second service areas are sub-service areas of the first service area; determining the second service area to which the target vehicle charging pile belongs, defining the second service area as the target service area, and obtaining the anti-interference wiring specification parameters and immunity of the target vehicle charging pile; determining the cooperative immunity value of the target service area based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile; obtaining the environmental parameters of the target service area, and determining the first performance test result of the target service area by combining the environmental parameters and the cooperative immunity value; obtaining the operating condition parameters of the target vehicle charging pile, and determining the second performance test result of the target vehicle charging pile by combining the operating condition parameters and the first performance test result, so as to evaluate the performance of the target vehicle charging pile. This application can improve the intelligence level of gender testing, thereby improving testing efficiency and accuracy. By uniformly analyzing the test data, it can support long-term performance evaluation and optimization. Attached Figure Description

[0072] Figure 1 This is a diagram illustrating the application environment of a vehicle charging pile performance testing method in one embodiment.

[0073] Figure 2 This is a flowchart illustrating a method for testing the performance of a car charging station in one embodiment.

[0074] Figure 3 This is a structural block diagram of a vehicle charging pile performance testing system in one embodiment;

[0075] Figure 4 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0076] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0077] It should be understood that, in the description of this application, unless the context explicitly requires it, words such as "including" or "comprising" throughout the specification should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0078] It should also be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0079] It should be noted that the terms "S1," "S2," etc., are used only for descriptive purposes and do not specifically refer to the order or sequence, nor are they intended to limit this application. They are merely for the convenience of describing the method of this application and should not be construed as indicating the sequential order of the steps. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0080] The vehicle charging pile performance testing method provided in this application can be applied to, for example... Figure 1 In the application environment shown, terminal 102 communicates with a data processing platform set on server 104 via a network. Terminal 102 can be, but is not limited to, various personal computers, laptops, smartphones, tablets, and portable wearable devices. Server 104 can be implemented as a standalone server or a server cluster consisting of multiple servers.

[0081] In one embodiment, such as Figure 2 As shown, a method for testing the performance of car charging piles is provided, and this method is applied to... Figure 1 Taking the terminal in the example, the explanation includes the following steps:

[0082] S1: Determine a first service area where multiple car charging piles are distributed. Based on the geographical location of the first service area and the load of the first service area within a first preset time period, divide the first service area into multiple second service areas, wherein the second service areas are sub-service areas of the first service area.

[0083] It should be noted that a car charging station is a dedicated device that provides power to electric vehicles. The service area refers to the area where the car charging station is located. The geographical location of the first service area is determined by latitude and longitude coordinates or its relative relationship with other geographical features. The first preset time period can be set according to actual needs, such as one week, one month, or one day. The load capacity refers to the electrical power consumed by the charging station in the first service area during operation.

[0084] S2: Determine the second service area to which the target vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target vehicle charging station.

[0085] It should be noted that the anti-interference wiring specifications for car charging piles refer to parameters such as shielded cable parameters (e.g., cable type), PCB wiring parameters, filtering and grounding design, etc. Immunity refers to the ability of a car charging pile to maintain normal operation in an external electromagnetic interference (EMI) environment. It measures the strength of the car charging pile's resistance to radiated interference (e.g., radio waves) and conducted interference (e.g., power grid noise), and is one of the core indicators of electromagnetic compatibility (EMC).

[0086] S3: Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, determine the cooperative immunity value of the target service area.

[0087] It should be noted that the cooperative immunity value refers to the maximum external electromagnetic interference intensity (such as field strength or noise current) that the entire system can withstand when multiple car charging piles are working together. It is used to evaluate the overall anti-interference capability of multiple car charging piles operating in cooperation.

[0088] S4: Obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area.

[0089] It should be noted that environmental parameters refer to relevant parameters that affect the operating status of car charging stations, such as temperature, humidity, and pollution levels.

[0090] S5: Obtain the operating parameters of the target vehicle charging pile, and combine the operating parameters with the first performance test result to determine the second performance test result of the target vehicle charging pile, so as to evaluate the performance of the target vehicle charging pile.

[0091] It should be noted that the operating parameters of car charging piles are used to quantify the aging, wear, or fault status of car charging piles, such as electrical health indicators, mechanical health indicators, such as insulation resistance, and the number of times the charging gun is plugged in and out.

[0092] In some specific implementations, dividing the first service area into multiple second service areas based on the geographical location of the first service area and the load of the first service area within a first preset time period includes:

[0093] Based on the geographical location of the first service area, determine whether the first service area is a residential area;

[0094] In response to the fact that the first service area is a residential area and the load of the first service area in the first preset time period is greater than the first preset threshold, the load of each car charging pile in the first service area in the first preset time period is obtained, wherein the first preset threshold can be set according to actual needs;

[0095] Based on the load of each car charging pile in the first preset time period, each car charging pile is sorted, and the identifier of each car charging pile is determined according to the sorting result. Here, sorting means sorting each car charging pile in descending order, and the identifier is determined according to the sorting result. For example, if it is ranked first, its identifier is 1; if it is ranked second, its identifier is 2, and so on.

[0096] Based on the number of identifiers and the number of grade divisions, the grade to which each electric vehicle charging pile belongs is determined. The service area to which the electric vehicle charging piles under the same grade belong is defined as the second service area. The number of grade divisions can be set according to actual needs, such as 5. For example, when the number of identifiers is 30, they are divided into 6 grades. The top 5 electric vehicle charging piles are classified as the first grade, the electric vehicle charging piles ranked 6-10 are classified as the second grade, and so on. The smaller the grade, the higher the grade. For example, the first grade is the highest grade.

[0097] In some specific embodiments, dividing the first service area into multiple second service areas based on the geographical location of the first service area and the load of the first service area within a first preset time period further includes:

[0098] In response to the first service area being a non-residential area and / or the load of the first service area within a first preset time period being less than or equal to a first preset threshold, the load of each car charging pile in the first service area within the first preset time period is obtained.

[0099] In response to the absolute value of the difference between the maximum load and the minimum load in the first service area being greater than a second preset threshold, each car charging pile is sorted based on its load in a first preset time period, and the identifier of each car charging pile is determined according to the sorting result. The second preset threshold can be set according to actual needs. The sorting operation is the same as above and will not be described again here.

[0100] Based on the number of identifiers and the number of grade divisions, the grade to which each car charging pile belongs is determined, and the service area to which the car charging piles under the same grade belong is defined as the second service area. The division operation of the second service area is the same as above, and will not be repeated here.

[0101] In response to the absolute value of the difference between the maximum load and the minimum load in the first service area being less than or equal to a second preset threshold, the first service area is divided based on a grid partitioning mechanism to generate multiple second service areas. The grid partitioning mechanism refers to dividing the first service area according to a fixed shape, such as a square, hexagon, etc., and its specific size can be set according to actual needs.

[0102] In some specific implementations, determining the second service area to which the target electric vehicle charging station belongs, defining the second service area as the target service area, and obtaining the anti-interference wiring specification parameters and immunity of the target electric vehicle charging station include:

[0103] Identify the target vehicle charging station to be tested, determine the second service area to which the target vehicle charging station belongs, and define the second service area as the target service area.

[0104] Obtain the anti-interference wiring specification parameters of the target electric vehicle charging pile, and determine the anti-interference level of the target electric vehicle charging pile based on the anti-interference wiring specification parameters of the target electric vehicle charging pile.

[0105] In some specific implementations, determining the immunity of the target electric vehicle charging station based on its anti-interference wiring specification parameters includes:

[0106] Based on the anti-interference wiring specification parameters and interference coupling model of the target electric vehicle charging station, the immunity of the target electric vehicle charging station is determined. The interference coupling model includes:

[0107] P = ω1U1 + ω2U2

[0108]

[0109] Where P represents the interference coupling coefficient, U1 represents the received power, U2 represents the noise voltage, ω1 and ω2 both represent weighting coefficients, L represents the electric field strength of the incident electromagnetic wave, σ represents the wavelength of the electromagnetic wave, C represents the cable length, q represents the free space wave impedance, Y represents the noise current coupled to the cable, and Z represents the coupling path impedance.

[0110] Based on the aforementioned anti-interference wiring specification parameters, an anti-interference coefficient is determined. The anti-interference coefficient is determined by the anti-interference wiring specification parameters. For example, wiring measures include adding a common-mode choke to the power line, placing filter capacitors near the port to suppress conducted interference, shortening the high-frequency signal return path through shielded cables and ferrite rings, and suppressing radiated interference. The suppressed conducted interference, radiated interference, and other suppressed interference are weighted using a weighted calculation method to obtain the anti-interference coefficient. The weighted calculation method is a commonly used method, and the specific calculation process will not be described in detail here.

[0111] The difference between the anti-interference coefficient and the interference coupling coefficient is defined as the anti-interference degree of the target car charging pile, and the difference is the value obtained by subtracting the interference coupling coefficient from the anti-interference coefficient.

[0112] In some specific implementations, determining the cooperative immunity value of the target service area based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile includes:

[0113] Based on the consistency of the anti-interference wiring specification parameters of multiple target car charging piles in the target service area, the anti-interference correction coefficient of the target car charging pile is determined. In this case, the inconsistency of the anti-interference wiring specification parameters in a region will lead to a decrease in the anti-interference capability of the entire region, such as conducted interference, radiated interference superposition, and ground loop interference. The anti-interference correction coefficient is determined through multiple tests.

[0114] The layout parameters of multiple target electric vehicle charging piles in the target service area are obtained. Based on the layout parameters and the cooperative immunity value calculation function, the cooperative immunity value of the target service area is determined. The layout parameters may include the spacing between two charging piles, etc., and the cooperative immunity value calculation function includes:

[0115]

[0116] Where V represents the cooperative disturbance rejection value, x n θ represents the immunity correction factor for the nth target electric vehicle charging station, m represents the number of target electric vehicle charging stations, and θ represents the interference correction factor for the nth target electric vehicle charging station. n U represents the weighting coefficient. nQ represents the immunity of the nth target electric vehicle charging station, k represents the layout coordination coefficient, and Q represents the interference resistance. nt C represents the distance between the nth target charging station and the tth target charging station. n C represents the cable length of the nth target car charging station. t Let a represent the cable length of the t-th target car charging station. max Indicates the maximum permissible continuous safe current, a n (t) represents the load current of the nth target car charging station at time t.

[0117] In some specific implementations, obtaining environmental parameters of the target service area and combining these environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area includes:

[0118] Based on the environmental parameters of the target service area, the cooperative anti-interference value, and the first performance evaluation model, a first performance evaluation value for the target service area is determined. The first performance evaluation model includes:

[0119]

[0120] Where V2 represents the first performance evaluation value, γ1, γ2, and γ3 all represent weighting coefficients, ε represents the temperature decay coefficient, T represents the ambient temperature, S1 represents the standard value of humidity, S represents the ambient humidity, W1 represents the standard value of pollution level, and W represents the environmental pollution level.

[0121] The first performance evaluation value is defined as the first performance test result of the target service area.

[0122] In some specific embodiments, obtaining the operating condition parameters of the target vehicle charging pile, and combining the operating condition parameters with the first performance test result, determines the second performance test result of the target vehicle charging pile, including:

[0123] Based on the operating parameters, the first performance test results, and the second performance evaluation model, a second performance evaluation value for the target vehicle charging pile is determined. The second performance evaluation model includes:

[0124]

[0125] Where V3 represents the second performance evaluation value, f represents the number of operating parameters, and w g This represents the weight of the g-th operating condition parameter. This indicates the degree of degradation of the nth target car charging pile under the gth operating condition parameter, i.e., the degree of deterioration, such as the aging degree of the car charging pile, historical fault values, etc.

[0126] The second performance evaluation value is defined as the second performance test result of the target car charging station.

[0127] In some specific embodiments, evaluating the performance of the target vehicle charging station includes:

[0128] In response to the second performance evaluation value being less than the third preset threshold for a period of time exceeding the fourth preset threshold within the second preset time period, it is determined that the performance of the target car charging pile is in an unstable state. The second preset time period can be set according to actual needs, such as one day. The third and fourth preset thresholds can also be set according to actual needs. When it is determined that the car charging pile is in an unstable state, a prompt message is sent to the user terminal.

[0129] The above-mentioned method for testing the performance of electric vehicle charging piles includes: determining a first service area where multiple electric vehicle charging piles are distributed; dividing the first service area into multiple second service areas based on the geographical location of the first service area and the load of the first service area within a first preset time period, wherein the second service areas are sub-service areas of the first service area; determining the second service area to which the target electric vehicle charging pile belongs, defining the second service area as the target service area, and obtaining the anti-interference wiring specification parameters and immunity of the target electric vehicle charging pile; determining the cooperative immunity value of the target service area based on the anti-interference wiring specification parameters and immunity of the target electric vehicle charging pile; obtaining the environmental parameters of the target service area, and determining the first performance test result of the target service area by combining the environmental parameters and the cooperative immunity value; obtaining the operating condition parameters of the target electric vehicle charging pile, and determining the second performance test result of the target electric vehicle charging pile by combining the operating condition parameters and the first performance test result, so as to evaluate the performance of the target electric vehicle charging pile. This application can improve the intelligence level of gender testing, thereby improving testing efficiency and accuracy. By uniformly analyzing the test data, it can support long-term performance evaluation and optimization.

[0130] It should be understood that, although Figure 2 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 2 At least some of the steps in the process may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.

[0131] In one embodiment, such as Figure 3 As shown, a vehicle charging pile performance testing system is provided, comprising: a first determining module, a second determining module, a third determining module, a fourth determining module, and a performance evaluation module, wherein:

[0132] The first determining module is used to determine a first service area where multiple car charging piles are distributed, and to divide the first service area into multiple second service areas based on the geographical location of the first service area and the load of the first service area within a first preset time period, wherein the second service area is a sub-service area of ​​the first service area.

[0133] The second determining module is used to determine the second service area to which the target electric vehicle charging pile belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging pile;

[0134] The third determining module is used to determine the cooperative anti-interference value of the target service area based on the anti-interference wiring specification parameters and anti-interference degree of the target car charging pile;

[0135] The fourth determining module is used to obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area;

[0136] The performance evaluation module is used to obtain the operating condition parameters of the target car charging pile, and combine the operating condition parameters with the first performance test results to determine the second performance test results of the target car charging pile, so as to evaluate the performance of the target car charging pile.

[0137] Specific limitations regarding the performance testing system for electric vehicle charging stations can be found in the limitations of the testing methods for electric vehicle charging stations mentioned above, and will not be repeated here. Each module in the aforementioned performance testing system for electric vehicle charging stations can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the corresponding operations of each module.

[0138] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 4As shown, the computer device includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for testing the performance of a car charging pile. The display screen can be an LCD screen or an e-ink display screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the computer device casing, or an external keyboard, touchpad, or mouse.

[0139] Those skilled in the art will understand that Figure 4 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0140] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the following steps:

[0141] S1: Determine a first service area where multiple car charging piles are distributed. Based on the geographical location of the first service area and the load of the first service area within a first preset time period, divide the first service area into multiple second service areas, wherein the second service areas are sub-service areas of the first service area.

[0142] S2: Determine the second service area to which the target electric vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging station;

[0143] S3: Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, determine the cooperative immunity value of the target service area;

[0144] S4: Obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area;

[0145] S5: Obtain the operating parameters of the target vehicle charging pile, and combine the operating parameters with the first performance test result to determine the second performance test result of the target vehicle charging pile, so as to evaluate the performance of the target vehicle charging pile.

[0146] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0147] S1: Determine a first service area where multiple car charging piles are distributed. Based on the geographical location of the first service area and the load of the first service area within a first preset time period, divide the first service area into multiple second service areas, wherein the second service areas are sub-service areas of the first service area.

[0148] S2: Determine the second service area to which the target electric vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging station;

[0149] S3: Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, determine the cooperative immunity value of the target service area;

[0150] S4: Obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area;

[0151] S5: Obtain the operating parameters of the target vehicle charging pile, and combine the operating parameters with the first performance test result to determine the second performance test result of the target vehicle charging pile, so as to evaluate the performance of the target vehicle charging pile.

[0152] In one embodiment, a computer program product is provided, the computer program product comprising a computer program that, when executed by a processor, performs the following steps:

[0153] S1: Determine a first service area where multiple car charging piles are distributed. Based on the geographical location of the first service area and the load of the first service area within a first preset time period, divide the first service area into multiple second service areas, wherein the second service areas are sub-service areas of the first service area.

[0154] S2: Determine the second service area to which the target electric vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging station;

[0155] S3: Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, determine the cooperative immunity value of the target service area;

[0156] S4: Obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area;

[0157] S5: Obtain the operating parameters of the target vehicle charging pile, and combine the operating parameters with the first performance test result to determine the second performance test result of the target vehicle charging pile, so as to evaluate the performance of the target vehicle charging pile.

[0158] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0159] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0160] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application.

Claims

1. A method for testing the performance of a car charging station, characterized in that, The method includes: A first service area is determined by the distribution of multiple car charging piles. Based on the geographical location of the first service area and the load of the first service area within a first preset time period, the first service area is divided into multiple second service areas, wherein the second service areas are sub-service areas of the first service area. Determine the second service area to which the target electric vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging station; Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, the cooperative immunity value of the target service area is determined; Obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area; The operating parameters of the target vehicle charging pile are obtained, and the second performance test result of the target vehicle charging pile is determined by combining the operating parameters and the first performance test result, so as to evaluate the performance of the target vehicle charging pile. Dividing the first service area into multiple second service areas based on the geographical location of the first service area and the load of the first service area during a first preset time period further includes: In response to the first service area being a non-residential area and / or the load of the first service area within a first preset time period being less than or equal to a first preset threshold, the load of each car charging pile in the first service area within the first preset time period is obtained. In response to the absolute value of the difference between the maximum load and the minimum load in the first service area being greater than a second preset threshold, each car charging pile is sorted based on its load in a first preset time period, and the identifier of each car charging pile is determined according to the sorting result. Based on the number of identifiers and the number of grade divisions, the grade to which each car charging pile belongs is determined, and the service area to which the car charging piles under the same grade belong is defined as the second service area. In response to the absolute value of the difference between the maximum load and the minimum load in the first service area being less than or equal to a second preset threshold, the first service area is divided based on a grid partitioning mechanism to generate multiple second service areas. The grid partitioning mechanism refers to dividing the first service area according to a fixed shape, which is a square or a hexagon. Taking the environmental parameters of the target service area, and combining the environmental parameters with the cooperative immunity value, the first performance test result of the target service area is determined as follows: Based on the environmental parameters of the target service area, the cooperative anti-interference value, and the first performance evaluation model, a first performance evaluation value for the target service area is determined. The first performance evaluation model includes: in, This represents the first performance evaluation value. , , All represent weighting coefficients. Indicates the temperature decay coefficient. Indicates ambient temperature. Indicates the standard humidity value. Indicates ambient humidity. Indicates the pollution level standard value. Indicates the level of environmental pollution; The first performance evaluation value is defined as the first performance test result of the target service area; Obtain the operating parameters of the target vehicle charging station, and determine the second performance test result of the target vehicle charging station by combining the operating parameters and the first performance test result: Based on the operating parameters, the first performance test results, and the second performance evaluation model, a second performance evaluation value for the target vehicle charging pile is determined. The second performance evaluation model includes: in, This represents the second performance evaluation value. Indicates the number of operating parameters. This represents the weight of the g-th operating condition parameter. This indicates the degree of degradation of the nth target car charging pile under the gth operating condition parameter; The second performance evaluation value is defined as the second performance test result of the target car charging station.

2. The method for testing the performance of a car charging pile according to claim 1, characterized in that, Based on the geographical location of the first service area and the load of the first service area during a first preset time period, the first service area is divided into multiple second service areas, including: Based on the geographical location of the first service area, determine whether the first service area is a residential area; In response to the fact that the first service area is a residential area and the load of the first service area in the first preset time period is greater than the first preset threshold, the load of each car charging pile in the first service area in the first preset time period is obtained. Based on the load of each car charging pile in the first preset time period, each car charging pile is sorted, and the identifier of each car charging pile is determined according to the sorting result. Based on the number of identifiers and the number of grade divisions, the grade to which each car charging station belongs is determined, and the service area to which the car charging station belongs under the same grade is defined as the second service area.

3. The method for testing the performance of a car charging station according to claim 2, characterized in that, Determine the second service area to which the target electric vehicle charging station belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference level of the target electric vehicle charging station, including: Identify the target vehicle charging station to be tested, determine the second service area to which the target vehicle charging station belongs, and define the second service area as the target service area. Obtain the anti-interference wiring specification parameters of the target electric vehicle charging pile, and determine the anti-interference level of the target electric vehicle charging pile based on the anti-interference wiring specification parameters of the target electric vehicle charging pile.

4. The method for testing the performance of a car charging station according to claim 3, characterized in that, Based on the anti-interference wiring specification parameters of the target electric vehicle charging pile, the anti-interference level of the target electric vehicle charging pile is determined, including: Based on the anti-interference wiring specification parameters and interference coupling model of the target electric vehicle charging station, the immunity of the target electric vehicle charging station is determined. The interference coupling model includes: in, Represents the interference coupling coefficient. Indicates the received power. Indicates noise voltage. , All represent weighting coefficients. This represents the electric field strength of the incident electromagnetic wave. Indicates the wavelength of electromagnetic waves. Indicates cable length. Represents free-space wave impedance. This represents the noise current coupled to the cable. Indicates the coupling path impedance; Based on the aforementioned anti-interference cabling specification parameters, the anti-interference coefficient is determined; The difference between the anti-interference coefficient and the interference coupling coefficient is defined as the anti-interference degree of the target car charging pile, and the difference is the value obtained by subtracting the interference coupling coefficient from the anti-interference coefficient.

5. The method for testing the performance of a car charging station according to claim 4, characterized in that, Based on the anti-interference wiring specification parameters and immunity of the target vehicle charging pile, the cooperative immunity value of the target service area is determined as follows: Based on the consistency of the anti-interference wiring specification parameters of multiple target car charging piles in the target service area, the anti-interference correction coefficient of the target car charging pile is determined. The layout parameters of multiple target electric vehicle charging piles in the target service area are obtained. Based on the layout parameters and a cooperative immunity value calculation function, the cooperative immunity value of the target service area is determined. The cooperative immunity value calculation function includes: in, Indicates the cooperative disturbance rejection value. This represents the immunity correction factor for the nth target electric vehicle charging station. Indicates the number of target car charging stations. Indicates the weighting coefficient. This represents the immunity of the nth target car charging station. Indicates the layout synergy coefficient. This represents the distance between the nth target electric vehicle charging station and the tth target electric vehicle charging station. This represents the cable length of the nth target car charging station. This represents the cable length of the t-th target car charging station. Indicates the maximum permissible continuous safe current. This represents the load current of the nth target car charging station at time t.

6. The method for testing the performance of a car charging station according to claim 5, characterized in that, The performance evaluation of the target vehicle charging station includes: If the second performance evaluation value is less than the third preset threshold for a period of time that is greater than the fourth preset threshold within the second preset time period, it is determined that the performance of the target car charging pile is in an unstable state.

7. A vehicle charging pile performance testing system for implementing the vehicle charging pile performance testing method as described in any one of claims 1-6, characterized in that, The system includes: The first determining module is used to determine a first service area where multiple car charging piles are distributed, and to divide the first service area into multiple second service areas based on the geographical location of the first service area and the load of the first service area within a first preset time period, wherein the second service area is a sub-service area of ​​the first service area. The second determining module is used to determine the second service area to which the target electric vehicle charging pile belongs, define the second service area as the target service area, and obtain the anti-interference wiring specification parameters and anti-interference degree of the target electric vehicle charging pile; The third determining module is used to determine the cooperative anti-interference value of the target service area based on the anti-interference wiring specification parameters and anti-interference degree of the target car charging pile; The fourth determining module is used to obtain the environmental parameters of the target service area, and combine the environmental parameters with the cooperative anti-interference value to determine the first performance test result of the target service area; The performance evaluation module is used to obtain the operating condition parameters of the target car charging pile, and combine the operating condition parameters with the first performance test results to determine the second performance test results of the target car charging pile, so as to evaluate the performance of the target car charging pile.

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