Virtual pile-based multi-gun simultaneous charging method and coordination equipment

Abstract

The invention relates to a new energy equipment charging management method and coordination equipment supporting multi-gun simultaneous charging, and the method comprises the steps: receiving a multi-pile simultaneous charging request of a user, and determining all target charging piles selected by the user according to the multi-pile simultaneous charging request; a virtual logic entity of the simulation pile is established, and the simulation pile obtains the maximum charging power of the new energy equipment through connection between the target charging pile and the new energy equipment; the simulation pile performs coordinated distribution of charging power for each target charging pile according to the maximum charging power, and simulates information interaction between the single pile and the EMS; the simulation pile virtual logic entity is established, power distribution of the target charging piles is coordinated, multiple piles are dispatched in a unified mode, original single-pile single-gun hardware does not need to be transformed, and multi-pile cooperative charging is achieved at low cost; any number of pile lines in the station can be flexibly combined, and the fixed matching limitation is broken; and meanwhile, an upper platform is disguised as single-pile interaction, the system is compatible with an existing EMS system, the system is suitable for various single-BMS multi-charging-port equipment, the charging efficiency is improved, and the heat management risk is dispersed.

Description

[0001] This case is a divisional application of the invention patent with the application date of 2025-07-03, the application number of 202510912698.2, and the name of "a new energy equipment charging management method and coordination device supporting multi-gun simultaneous charging". TECHNICAL FIELD

[0002] The present application relates to the field of new energy charging management, in particular to a new energy equipment charging management method and coordination device supporting multi-gun simultaneous charging. BACKGROUND

[0003] With the popularity and promotion of electric vehicles, users' requirements for charging time are getting shorter and shorter, which will lead to a large demand for high-power charging equipment. The charging current and power of high-power charging equipment are relatively large, which will cause the temperature of the battery pack to rise too fast, resulting in a reduction in the service life of the battery and an increase in the design cost and difficulty of the charger. To solve this problem, many heavy trucks, logistics vehicles, buses, and even electric ships, which require large-capacity batteries, use multi-charging port equipment for simultaneous charging to shorten the charging time and reduce the risk and cost of single-port thermal management.

[0004] However, such charging equipment uses a single BMS system architecture without additional costs, and only manages the PACK in the main charging circuit to save costs. Therefore, to quickly charge the battery, the charging equipment needs to coordinate the output of multiple charging guns.

[0005] Therefore, there is a need for a charging method that supports the coordination of multi-gun simultaneous charging. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a new energy equipment charging management method and coordination device supporting multi-gun simultaneous charging, which supports the coordination of multi-gun simultaneous charging of single BMS multi-charging port equipment.

[0007] To solve the above technical problems, the technical scheme adopted by the present application is: A new energy equipment charging management method supporting multi-gun simultaneous charging, comprising the steps of: S1, receiving a multi-pile simultaneous charging request of a user, and determining all target charging piles selected by the user according to the multi-pile simultaneous charging request; S2, establishing a virtual logical entity of a simulation pile, the simulation pile being connected to a new energy equipment through the target charging pile, and obtaining the maximum charging power of the new energy equipment; S3, the simulation pile performs coordinated allocation of charging power for each target charging pile according to the maximum charging power, and simulates information interaction between a single pile and an EMS.

[0008] In order to solve the above technical problems, the technical scheme adopted by the present application is: A coordination device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program: S1, receiving a multi-pile same charging request of a user, and determining all target charging piles selected by the user according to the multi-pile same charging request; S2, establishing a virtual logical entity of a simulation pile, the simulation pile being connected with a new energy equipment through the target charging pile, and acquiring a maximum charging power of the new energy equipment; S3, the simulation pile performs coordinated allocation of charging power for each target charging pile according to the maximum charging power, and simulates information interaction between a single pile and an EMS.

[0009] The present application has the advantages that: the new energy equipment charging management method and the coordination device supporting multi-gun same charging of the present application establish a virtual logical entity of a simulation pile, coordinate power distribution of target charging piles, uniformly schedule multiple piles, do not need to modify the original single pile single gun hardware, and realize multi-pile cooperative charging at low cost; any number of pile lines in the station can be flexibly combined, and the fixed matching restriction is broken; at the same time, the upper layer platform is disguised as single pile interaction, compatible with the existing EMS system, applicable to various single BMS multi-charging port equipment, improves the charging efficiency and disperses the risk of thermal management. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 A brief process example diagram of the new energy equipment charging management method supporting multi-gun same charging of the embodiment of the present application; Figure 2 A timing example diagram of double-gun cooperative charging of the new energy equipment charging management method supporting multi-gun same charging of the embodiment of the present application; Figure 3 An architecture example diagram of double-gun cooperative charging of the new energy equipment charging management method supporting multi-gun same charging of the embodiment of the present application; Figure 4 A connection example diagram of three-gun cooperative charging of the new energy equipment charging management method supporting multi-gun same charging of the embodiment of the present application; Figure 5 A structure example diagram of the coordination device of the embodiment of the present application; LABEL EXPLANATION 1, a coordination device; 2, a processor; 3, a memory. DETAILED DESCRIPTION

[0011] In order to explain the technical content, the purposes and effects of the present application in detail, the following will be explained in combination with the embodiments and the accompanying drawings.

[0012] Please refer to Figures 1 to 4 A new energy equipment charging management method supporting multi-gun simultaneous charging, comprising the steps of: S1, receiving a multi-pile simultaneous charging request of a user, determining all target charging piles selected by the user according to the multi-pile simultaneous charging request; S2, establishing a virtual logical entity of a simulation pile, the simulation pile obtaining the maximum charging power of the new energy equipment through the connection of the target charging pile and the new energy equipment; S3, the simulation pile performs coordinated allocation of charging power for each target charging pile according to the maximum charging power, and simulates information interaction with EMS.

[0013] From the above description, the beneficial effects of the present application are that the new energy equipment charging management method supporting multi-gun simultaneous charging of the present application establishes a virtual logical entity of a simulation pile, coordinates target charging pile power distribution, uniformly schedules multiple piles, does not need to modify the original single pile single gun hardware, and realizes multi-pile coordinated charging at low cost; any number of piles and lines in the station can be flexibly combined, breaking the fixed matching restriction; at the same time, it is disguised as single pile interaction to the upper platform, compatible with the existing EMS system, applicable to various single BMS multi-charging port equipment, improves charging efficiency and disperses thermal management risk.

[0014] Further, determining all target charging piles selected by the user according to the multi-pile simultaneous charging request comprises: determining a main charging pile selected by the user according to the multi-pile simultaneous charging request; In step S2, the simulation pile obtains the maximum charging power of the new energy equipment through the connection of the target charging pile and the new energy equipment, comprising: The simulation pile establishes a communication connection with the new energy equipment through the main charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

[0015] From the above description, it is clear that the main pile is responsible for communication interaction with the vehicle BMS (such as handshaking and parameter acquisition), and the auxiliary pile only bears electric energy transmission, avoiding the complexity of multiple ports communicating at the same time; it is suitable for single BMS system architecture, and the vehicle end does not need additional communication interface, reducing the modification cost; the main pile uniformly collects equipment requirements, providing accurate basis for simulation pile power distribution, ensuring the consistency and reliability of multi-pile cooperation.

[0016] Further, between step S2 and step S3, there is also a step: S21, the simulation pile performs insulation confirmation to the main charging pile, obtains an insulation confirmation result, and only enters step S3 when the insulation detection passes; The insulation confirmation result is initiated by the main charging pile to the new energy equipment, and the new energy equipment is generated according to the line insulation detection of each target charging pile; The target charging pile includes the main charging pile and other charging piles.

[0017] From the above description, by performing insulation detection on the lines of all target charging piles by the main pile, the safety of the charging circuit is ensured, and the risks of electric leakage and short circuit are prevented. The detection result is generated by the vehicle and fed back to the main pile, which meets the requirements of the national standard charging process. Hardware failure hazards are excluded in advance, the charging process is not interrupted due to insulation problems, the safety of equipment and personnel is ensured, and the stability of the system is improved.

[0018] Further, the method further comprises the steps of: S4, the simulation pile receives a power reduction request of a target charging pile, determines a power reduction quota according to the power reduction request, and adjusts the charging power of the target charging piles which do not initiate the power reduction request according to the power reduction quota.

[0019] From the above description, when a pile needs to be reduced due to temperature, failure or other factors, the simulation pile automatically adjusts the output power of the remaining piles to make up for the gap and avoid interruption of charging. Dynamic balancing of multi-pile load, while meeting the power demand of the vehicle, prolongs the service life of the pile. Break the limitations of traditional fixed matching pile "single pile failure stop charging", improve the utilization rate of station equipment and user experience.

[0020] Further, step S3 comprises: The simulation pile distributes the maximum charging power to all target charging piles according to the maximum charging power, and the target charging piles supply power to the new energy equipment according to the allocated power.

[0021] From the above description, in the case of the same pile capacity, the equal distribution strategy simplifies the power distribution logic and improves the scheduling efficiency. Avoid overheating risk caused by single pile overload, balance multi-pile workload, prolong the overall life of the equipment; balance the vehicle's rapid power supply demand and the pile's performance, adapt to the stable charging demand of large power equipment, and reduce the control complexity.

[0022] Please refer to Figure 5 A coordination device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program: S1, receiving a multi-pile charging request of a user, determining all target charging piles selected by the user according to the multi-pile charging request; S2, a virtual logical entity of a simulation pile is established, and the simulation pile obtains the maximum charging power of the new energy equipment through the connection of the target charging pile and the new energy equipment; S3, the simulation pile performs coordinated distribution of charging power for each target charging pile according to the maximum charging power, and simulates information interaction between a single pile and an EMS.

[0023] From the above description, the beneficial effects of the present application are that: a coordination device of the present application establishes a simulation pile virtual logical entity, coordinates target charging pile power distribution, and uniformly schedules multiple piles, without modifying the original single pile single gun hardware, to realize multi-pile coordinated charging at low cost; any number of piles and lines in the station can be flexibly combined, breaking the fixed matching restriction; at the same time, it is disguised as a single pile interaction to the upper platform, compatible with the existing EMS system, suitable for various single BMS multi-charging port devices, improving charging efficiency and dispersing thermal management risk.

[0024] Further, determining all target charging piles selected by the user according to the multi-pile simultaneous charging request includes: determining a main charging pile selected by the user according to the multi-pile simultaneous charging request; In step S2, the simulation pile obtains the maximum charging power of the new energy equipment through the connection of the target charging pile and the new energy equipment. The simulation pile establishes a communication connection with the new energy equipment through the main charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

[0025] From the above description, it is clear that the main pile is responsible for communication interaction with the vehicle BMS (such as handshaking and parameter acquisition), and the auxiliary pile only bears electric energy transmission, avoiding the complexity of multiple ports communicating at the same time; adapting to single BMS system architecture, no additional communication interface is required at the vehicle end, reducing the modification cost; the main pile uniformly collects device requirements to provide accurate basis for simulation pile power distribution, ensuring the consistency and reliability of multi-pile cooperation.

[0026] Further, between step S2 and step S3, there is also a step: S21, the simulation pile performs insulation confirmation to the main charging pile, obtains an insulation confirmation result, and only enters step S3 when the insulation detection passes; The insulation confirmation result is initiated by the main charging pile to the new energy equipment, and is generated by the new energy equipment according to the line insulation detection of each target charging pile; The target charging pile includes the main charging pile and other charging piles.

[0027] From the above description, by the main pile to all target charging pile line insulation detection, ensure the safety of charging circuit, prevent the risk of electric leakage, short circuit and the like; the detection result is generated by the vehicle and fed back to the main pile, which meets the national standard charging process requirements; exclude hardware failure hidden trouble in advance, avoid interruption due to insulation problem in the charging process, ensure the safety of equipment and personnel, and improve the system stability.

[0028] Further, the method further comprises the steps of: S4, the simulation pile receives a power reduction request of a target charging pile, determines a power reduction quota according to the power reduction request, and adjusts the charging power of the target charging piles which do not initiate the power reduction request according to the power reduction quota.

[0029] From the above description, when a pile needs to be reduced due to temperature, failure and other factors, the simulation pile automatically adjusts the output power of the remaining piles to make up for the gap, avoids interruption during charging, dynamically balances the load of multiple piles, preferentially meets the power demand of the vehicle, and prolongs the service life of the pile body; break the limitation of traditional fixed matching pile "single pile failure stops charging", improve the utilization rate of station equipment and user experience.

[0030] Further, the step S3 comprises: The simulation pile distributes the maximum charging power to all target charging piles according to the maximum charging power, and the target charging piles supply power to the new energy equipment according to the distributed power.

[0031] From the above description, in the scenario where the pile body capacity is the same, the equal distribution strategy simplifies the power distribution logic, improves the scheduling efficiency, avoids the overheating risk caused by single pile overload, balances the work load of multiple piles, prolongs the overall life of the equipment, and balances the vehicle fast power supply demand and the pile body performance, adapts to the stable charging demand of large power equipment, and reduces the control complexity.

[0032] The new energy equipment charging management method and coordination device supporting multiple gun charging are suitable for the adaptation of multiple pile charging in a charging station, and are especially suitable for the charging demand adaptation of new energy equipment with single BMS and multiple charging ports.

[0033] Please refer to Figures 1 to 4 The embodiment one of the present application is: A new energy equipment charging management method supporting multiple gun charging, comprising the steps of: S1, receiving a multiple pile charging request of a user, and determining all target charging piles selected by the user according to the multiple pile charging request; Determining all target charging piles selected by the user according to the multiple pile charging request comprises: Determining a main charging pile selected by the user according to the multiple pile charging request; In this embodiment, the user selects the charging pile and the charging mode according to the operation rules of the charging station. The user can connect the charging gun according to the support design of the new energy equipment, for example, as shown in Figure 4 The equipment with three charging ports can connect up to three charging piles. The user needs to report the selected charging pile to the system. For example, in the code scanning charging mode, after the user scans pile A through the mobile device, the display options of the mobile device include the option of multi-pile simultaneous charging. According to the user's selection, the charging mode is confirmed: if the multi-pile simultaneous charging option is not selected, the original operation mode is normal charging. If the multi-pile simultaneous charging option is selected, the simulation pile is created, pile A is set as the master pile, and the user is prompted to select the collaborative charging pile (pile number).

[0034] According to the information submitted by the user through the mobile terminal, all the charging piles selected by the user are confirmed, that is, the target charging piles. In this embodiment, in order to simplify the description, two (one master charging pile A and collaborative charging pile B) or three charging piles (one master charging pile A and collaborative charging piles B and C) are selected by the user as examples for description, and in other equivalent embodiments, the user can select more charging piles for collaborative charging.

[0035] S2, a virtual logical entity of a simulation pile is established, and the simulation pile obtains the maximum charging power of the new energy equipment through the connection of the target charging pile and the new energy equipment; In step S2, the simulation pile obtains the maximum charging power of the new energy equipment through the connection of the target charging pile and the new energy equipment, which includes: The simulation pile establishes a communication connection with the new energy equipment through the master charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

[0036] In this embodiment, reference can be made to Figure 2 and Figure 3 , which are illustrated by taking double-gun collaboration as an example. The simulation pile is constructed by the simultaneous message interaction of the charging pile A master gun and the vehicle electric energy transmission, and the information is reported to the simulation pile. The simulation pile determines the maximum demand power of the vehicle (only as an example, in other equivalent embodiments, it can be other new energy equipment) according to the information reported by the charging pile A.

[0037] S21, the simulation pile performs insulation confirmation to the master charging pile, obtains an insulation confirmation result, and only when the insulation detection passes, enters step S3; The insulation confirmation result is initiated by the master charging pile to the new energy equipment, and is generated by the new energy equipment according to the line insulation detection of each target charging pile; The target charging pile includes the master charging pile and other charging piles.

[0038] In this embodiment, refer to the timing diagram of the double-gun cooperative charging shown in Figure 2 Before the power distribution and the charging pile are enabled, the line insulation detection needs to be confirmed. The main charging pile (charging pile A) performs the insulation line detection with the new energy equipment, and the new energy equipment performs the insulation line detection with the remaining charging piles (such as charging pile B), and the main charging pile feeds back the insulation detection results of the new energy equipment and each charging pile to the simulation pile.

[0039] After the insulation detection is completed, the subsequent step is entered.

[0040] S3, the simulation pile performs the coordinated distribution of the charging power for each target charging pile according to the maximum charging power, and simulates the information interaction between the single pile and the EMS.

[0041] Step S3 includes: The simulation pile evenly distributes the maximum charging power to all target charging piles according to the maximum charging power, and the target charging piles supply power to the new energy equipment according to the distributed power.

[0042] In this embodiment, the simulation pile divides the power according to the maximum demand power of the vehicle, and when the capacities of the piles are the same, the power is evenly divided, and when the capacities of the piles are different, the charging power of the vehicle is satisfied as much as possible under the condition that the safety of each charging port of the vehicle is not exceeded.

[0043] Each charging pile provides power to the new energy equipment in real time according to the charging power setting issued by the simulation pile, and reports the real-time charging data of itself to the simulation pile.

[0044] Under normal circumstances, while ensuring the charging demand of the vehicle, the service life and performance of the pile side are also considered, and the power demand is generally divided by multiple piles.

[0045] The simulation pile aggregates the real-time charging information of each pile and reports the platform for subsequent settlement.

[0046] S4, the simulation pile receives the power reduction request of a target charging pile, determines the power reduction quota according to the power reduction request, and adjusts the charging power of the target charging piles which do not initiate the power reduction request according to the power reduction quota.

[0047] In this embodiment, since there are other strategies or control strategies of the charging pile itself, such as a pile in cooperative work which needs to reduce the output due to the influence of gun temperature, pile internal environment temperature and the like, the current maximum output capacity of the reporting simulation pile is reported, and the simulation pile learns the same, and adjusts other piles in cooperative work to make up for the lack of power to maximize the demand of the vehicle.

[0048] In this embodiment, such as the scene of three gun cooperation, the vehicle each port is according to the national standard, the maximum 250A, the maximum demand of vehicle 360A.A stake, B stake, C stake, stake capacity is 180kw, the maximum current 250A;Then according to the real-time demand of vehicle obtained by A stake, the current is divided by each stake.

[0049] If the power reported by B stake and C stake needs to be reduced due to temperature or other factors at this time, the simulation stake reduces the output setting of B stake and C stake, and increases the output setting of A stake.

[0050] Please refer to Figure 5 Embodiment two of the present application is: A coordination device 1, comprising a processor 2, a memory 3 and a computer program stored in the memory 3 and executable on the processor 2, the processor 2 implements the steps in the new energy equipment charging management method supporting multi-gun charging of the above embodiment one when executing the computer program.

[0051] In summary, the present application provides a new energy equipment charging management method and coordination device supporting multi-gun charging, establishes a simulation stake virtual logical entity, coordinates the power distribution of the target charging stake, uniformly schedules multiple stakes, does not need to modify the original single-stake single-gun hardware, and realizes multi-stake cooperative charging at low cost; can flexibly combine any number of stakes in the station, breaking the fixed combination limit; at the same time, it is disguised as single-stake interaction to the upper platform, compatible with the existing EMS system, applicable to various single-BMS multi-charging port devices, improves charging efficiency and disperses heat management risk.

[0052] The present application adds a simulation stake coordinator, without modifying the upper platform or EMS communication, can quickly realize the original fast charging stake station single-stake single-gun charging stake, and complete the same vehicle double-gun charging through coordination

vehicle single-BMS system, charging needs two charging ports to coordinate power distribution

[0053] The original fast charging stake can be upgraded quickly with the minimum action amount, supports one vehicle multi-stake charging, and is suitable for use in the original small vehicle station for quick conversion of heavy trucks, buses and logistics vehicles. The basic single-stake single-gun hardware does not need to be changed, and the software adds a master-slave mode; compatible with normal charging use, quick switching.

[0054] The addition of the simulation stake coordinator can flexibly call multiple stakes in the station to realize one vehicle double-gun, four-gun, etc. In addition, the arbitrarily selected stake in the master-slave mode can avoid fixed gun line positions, and is more flexible. In the case of sufficient gun lines, the stake can be arbitrarily combined.

[0055] It is suitable for single BMS interaction systems, but supports multi-gun charging [multi-charging port] equipment applications; it is not limited to a fixed combination of a single pile and dual gun equipment, it is flexible and versatile, and can be expanded to charge multiple guns in one vehicle. It is suitable for high-capacity equipment applications such as aircraft, electric ships, heavy trucks, and rail buses.

[0056] No additional high-cost modifications to water cooling and charging port design are required; power input is distributed, simplifying control complexity.

[0057] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for simultaneous charging of multiple guns based on virtual piles, characterized in that, Including the following steps: S1. Receive the user's request for simultaneous charging at multiple charging stations, and determine all target charging stations selected by the user based on the request for simultaneous charging at multiple charging stations. S2. Establish a virtual logical entity for the simulated charging pile. The simulated charging pile connects to the new energy equipment through the target charging pile to obtain the maximum charging power of the new energy equipment. The target charging pile includes the main charging pile and other charging piles. S3. The simulated charging pile, based on the maximum charging power, distributes the maximum charging power equally to all the target charging piles when the capacity of each pile is the same, and the target charging piles supply power to the new energy equipment according to the allocated power. When the capacity of each charging pile is different, the charging power of the vehicle shall be met without exceeding the safety limit of each charging port of the vehicle. S4. The simulated charging pile receives a power reduction request from a target charging pile, determines the power reduction amount based on the power reduction request, and adjusts the charging power of the remaining target charging piles that have not initiated the power reduction request based on the power reduction amount.

2. The method for simultaneous charging of multiple guns based on virtual piles according to claim 1, characterized in that, Based on the multi-charging request, all target charging stations selected by the user are determined as follows: The user selects the main charging pile based on the multi-pile simultaneous charging request. In step S2, the simulated charging pile connects to the target charging pile and the new energy equipment to obtain the maximum charging power of the new energy equipment, including: The simulated charging pile establishes a communication connection with the new energy equipment through the main charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

3. The method for simultaneous charging of multiple guns based on virtual piles according to claim 1, characterized in that, The steps between step S2 and step S3 include: S21. The simulated pile performs insulation verification on the main charging pile and obtains the insulation verification result. Step S3 is only entered when the insulation test is passed. The insulation confirmation result is initiated by the main charging pile to the new energy equipment, and the new energy equipment generates the result based on the line insulation test results with each target charging pile.

4. A coordination device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it performs the following steps: S1. Receive the user's request for simultaneous charging at multiple charging stations, and determine all target charging stations selected by the user based on the request for simultaneous charging at multiple charging stations. S2. Establish a virtual logical entity for the simulated charging pile. The simulated charging pile connects to the new energy equipment through the target charging pile to obtain the maximum charging power of the new energy equipment. The target charging pile includes the main charging pile and other charging piles. S3. The simulated charging pile, based on the maximum charging power, distributes the maximum charging power equally to all the target charging piles when the capacity of each pile is the same, and the target charging piles supply power to the new energy equipment according to the allocated power. When the capacity of each charging pile is different, the charging power of the vehicle should be met as much as possible without exceeding the safety limit of each charging port of the vehicle. S4. The simulated charging pile receives a power reduction request from a target charging pile, determines the power reduction amount based on the power reduction request, and adjusts the charging power of the remaining target charging piles that have not initiated the power reduction request based on the power reduction amount.

5. A coordination device according to claim 4, characterized in that, Based on the multi-charging request, all target charging stations selected by the user are determined as follows: The user selects the main charging pile based on the multi-pile simultaneous charging request. In step S2, the simulated charging pile connects to the target charging pile and the new energy equipment to obtain the maximum charging power of the new energy equipment, including: The simulated charging pile establishes a communication connection with the new energy equipment through the main charging pile, and obtains the maximum charging power of the new energy equipment through the established communication connection.

6. A coordination device according to claim 4, characterized in that, The steps between step S2 and step S3 include: S21. The simulated pile performs insulation verification on the main charging pile and obtains the insulation verification result. Step S3 is only entered when the insulation test is passed. The insulation confirmation result is initiated by the main charging pile to the new energy equipment, and the new energy equipment generates the result based on the line insulation test results with each target charging pile.

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