Charging control method, system, device and medium for charging pile

Abstract

Disclosed is a charging control method for a charging pile, comprising: when a second DC charging gun is connected to a second vehicle, calculating the required power P of the second vehicle based on the required voltage and required current sent by the second vehicle 需（2） ; According to the real-time voltage and real-time current currently output by the first DC charging gun, the current real-time output power P of the first DC charging gun is obtained. 实（1） When P 实（1） >P 标（1） When the output power of the second DC charging gun is controlled according to P 总 ‑P 实（1） The second vehicle is charged by the difference between the first and second DC charging guns, and then the output power of the first DC charging gun is adjusted synchronously, so that the output power of the first DC charging gun is increased from P 实（1） Reduce to P 标（1） The slope k1 and the output power of the second DC charging gun are from P 总 ‑P 实（1） Raised to P 标（2） The slope k2 is less than or equal to k0 and the synchronization adjustment time is the shortest.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging, and in particular to a charging control method, system, equipment and medium for a charging pile. Background Art

[0002] With the development of new energy, more and more automobile manufacturers are developing electric vehicles, and more and more people are starting to choose to buy more energy-saving and environmentally friendly electric vehicles. The construction of charging infrastructure is an important guarantee for the popularization of electric vehicles.

[0003] In order to make better use of space, charging pile products with dual or even multiple charging guns in a single machine are gradually becoming a trend.

[0004] Existing single-machine dual charging guns or multi-charging guns mostly use dual charging guns or multi-charging guns, which usually follow a fixed power distribution (for example, evenly distribute power). When a single charging gun is used in parallel, this method will cause some guns to have redundant power while others have insufficient power when the requirements of different guns are different, resulting in power waste.

[0005] In addition, in a dual-gun DC charging pile, when one of the DC charging guns (for example, the first DC charging gun) is connected to a vehicle and is in charging state (especially when the DC single gun is outputting at the maximum output power of the charging pile), and the other DC charging gun (for example, the second DC charging gun) is connected to a vehicle for charging, if the power is adjusted by using an average power distribution method, the charging power output by the first DC charging gun will change suddenly (instantly decrease significantly), which will affect the charging efficiency of the connected vehicle and easily cause certain damage to the vehicle's battery. Summary of the Invention

[0006] The object of the present invention is to provide a charging control method, system, device and medium for a charging pile, which can effectively solve the above-mentioned technical problems existing in the prior art.

[0007] On the one hand, an embodiment of the present application discloses a charging control method for a charging pile, wherein the charging pile includes a first DC charging gun and a second DC charging gun. The charging control method for the charging pile includes the following steps:

[0008] S1. When the first DC charging gun is connected to the first vehicle and is charging, when the second DC charging gun is connected to the second vehicle, the power requirement P of the second vehicle is calculated based on the required voltage and current sent by the second vehicle. 需（2） ;

[0009] S2. Obtain the current real-time output power P of the first DC charging gun according to the current real-time voltage and current output by the first DC charging gun. 实（1） ;

[0010] S3. When P is satisfied 需（2） +P 实（1） ≤P 总 When the output power of the second DC charging gun is controlled to be P 需（2） Charge the second vehicle, otherwise execute step S4; wherein, P 总 is the maximum DC charging power of the charging pile;

[0011] S4. Calculate the target charging power P of the first vehicle according to the charging priorities of the first vehicle and the second vehicle. 标（1） and the target charging power P for the second vehicle 标（2） , and P 标（1） and P 标（2） Satisfied: P 标（1） + P 标（2） =P 总 , P 标（1） / P 标（2） =w1 / w2, where w1 and w2 are the charging priority scores of the first vehicle and the second vehicle, respectively, and the charging priority scores are calculated based on the vehicle's charging start time, remaining charging time, and user level;

[0012] S5, when P 实（1） ≤P 标（1） When the output power of the second DC charging gun is controlled to be P 总 -P 实（1） The difference between the charging voltage and the charging voltage is used to charge the second vehicle;

[0013] S6, when P 实（1） >P 标（1） When the output power of the second DC charging gun is controlled to P 总 -P 实（1） The second vehicle is charged by the difference between the first and second DC charging guns, and then the output power of the first DC charging gun and the second DC charging gun are adjusted synchronously, so that the output power of the first DC charging gun is increased from P 实（1） Reduce to P 标（1） The slope k1 and the output power of the second DC charging gun are from P 总 -P 实（1） Raised to P 标（2） The slope k2 is less than or equal to k0 and the synchronization adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun before adjusting to the target charging power is less than or equal to P 总 ; Wherein, k0 is the preset power adjustment reference slope.

[0014] Preferably, the charging control method of the charging pile further includes the steps of:

[0015] S7. During the charging process of the first and second DC charging guns for the first and second vehicles, respectively, the output power of the first and second DC charging guns are adjusted in real time according to changes in the battery charging requirements of the first and second vehicles, specifically including:

[0016] S71, when P 需’（1） +P 需’（2） ≤P 总 When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 Among them, P 实’（1） 、P 实’（2） The real-time output power of the first DC charging gun and the second DC charging gun respectively;

[0017] S72, when P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 标（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 标（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ;

[0018] S73, when P 需’（1） +P 需’（2） >P 总 And P 需’（1） ≤P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 总 -P 需’（1）The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ;

[0019] S74, when P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） ≤P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 总 -P 需’（2） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 .

[0020] Preferably, the charging control method of the charging pile further includes the steps of:

[0021] S8. When the first DC charging gun or the second DC charging gun finishes charging the first vehicle or the second vehicle, obtain the battery charging requirements P of the first vehicle or the second vehicle connected to the first DC charging gun or the second DC charging gun that is still in the charging state. 需’’（1） 、P 需’’（2） ;

[0022] If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 需’’（1） The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 需’’（2） The slope is less than or equal to k0 and the adjustment time is the shortest;

[0023] If P 需’’（1） >P 总 or P 需’’（2） >P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 总 The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 总 The slope is less than or equal to k0 and the adjustment time is the shortest;

[0024] Among them, P 实’’（1） 、P 实’’（2） are the real-time output powers of the first DC charging gun and the second DC charging gun, respectively; when the first DC charging gun finishes charging, the second DC charging gun is replaced by the first DC charging gun and the process returns to step S1.

[0025] Preferably, the charging control method of the charging pile controls the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process to be equal to P 总 ;P 总 =150KW.

[0026] On the other hand, an embodiment of the present invention provides a charging control system for a charging pile, including a first DC charging gun, a second DC charging gun, a first DC meter, a second DC meter, a power module, and a control module; the power module is used to convert AC power input from the power grid into DC power and output it to the first DC charging gun and the second DC charging gun, respectively; the first DC meter and the second DC meter are respectively arranged at the output ends of the first DC charging gun and the second DC charging gun to obtain the real-time voltage and real-time current of the first DC charging gun and the second DC charging gun and feed them back to the control module; the control module controls the power module to output the corresponding voltage and current to the first DC charging gun and the second DC charging gun based on the real-time voltage and real-time current fed back by the first DC meter and the second DC meter and the charging requirements of the vehicle batteries connected to the first DC charging gun and the second DC charging gun, including:

[0027] When the first DC charging gun is connected to the first vehicle and is in charging state, when the second DC charging gun is connected to the second vehicle, the required power P of the second vehicle is calculated based on the required voltage and required current sent by the second vehicle. 需（2） ;

[0028] The current real-time output power P of the first DC charging gun is obtained according to the real-time voltage and real-time current currently output by the first DC charging gun. 实（1） ;

[0029] When P is satisfied 需（2） +P 实（1） ≤P 总 When the output power of the second DC charging gun is controlled to be P 需（2） Charge the second vehicle, otherwise execute step S4; wherein, P 总 is the maximum DC charging power of the charging pile;

[0030] The target charging power P of the first vehicle is calculated based on the charging priority of the first vehicle and the second vehicle. 标（1）and the target charging power P for the second vehicle 标（2） , and P 标（1） and P 标（2） Satisfied: P 标（1） + P 标（2） =P 总 , P 标（1） / P 标（2） =w1 / w2, where w1 and w2 are the charging priority scores of the first vehicle and the second vehicle, respectively, and the charging priority scores are calculated based on the vehicle's charging start time, remaining charging time, and user level;

[0031] When P 实（1） ≤P 标（1） When the output power of the second DC charging gun is controlled to be P 总 -P 实（1） The difference between the charging voltage and the charging voltage is used to charge the second vehicle;

[0032] When P 实（1） >P 标（1） When the output power of the second DC charging gun is controlled to P 总 -P 实（1） The second vehicle is charged by the difference between the first and second DC charging guns, and then the output power of the first DC charging gun and the second DC charging gun are adjusted synchronously, so that the output power of the first DC charging gun is increased from P 实（1） Reduce to P 标（1） The slope k1 and the output power of the second DC charging gun are from P 总 -P 实（1） Raised to P 标（2） The slope k2 is less than or equal to k0 and the synchronization adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun before adjusting to the target charging power is less than or equal to P 总 ; Wherein, k0 is the preset power adjustment reference slope.

[0033] Preferably, the charging control system of the charging pile further includes:

[0034] During the process of charging the first vehicle and the second vehicle respectively by the first DC charging gun and the second DC charging gun, adjusting the output power of the first DC charging gun and the second DC charging gun in real time according to changes in battery charging requirements of the first vehicle and the second vehicle specifically includes:

[0035] When P 需’（1） +P 需’（2） ≤P 总 When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 Among them, P 实’（1） 、P 实’（2） The real-time output power of the first DC charging gun and the second DC charging gun respectively;

[0036] When P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 标（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 标（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ;

[0037] When P 需’（1） +P 需’（2） >P 总 And P 需’（1） ≤P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 总 -P 需’（1） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ;

[0038] When P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） ≤P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 总 -P 需’（2） The slope and output power of the second DC charging gun are from P 实’（2）Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 .

[0039] Preferably, the charging control system of the charging pile further includes:

[0040] When the first DC charging gun or the second DC charging gun finishes charging the first vehicle or the second vehicle, the battery charging demand P of the first vehicle or the second vehicle connected to the first DC charging gun or the second DC charging gun that is still in the charging state is obtained. 需’’（1） 、P 需’’（2） ;

[0041] If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 需’’（1） The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 需’’（2） The slope is less than or equal to k0 and the adjustment time is the shortest;

[0042] If P 需’’（1） >P 总 or P 需’’（2） >P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 总 The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 总 The slope is less than or equal to k0 and the adjustment time is the shortest;

[0043] Among them, P 实’’（1） 、P 实’’（2） They are the real-time output power of the first DC charging gun and the second DC charging gun respectively; when the first DC charging gun finishes charging, the second DC charging gun is replaced by the first DC charging gun and a new round of power adjustment control is performed.

[0044] Preferably, in the charging control system of the charging pile, the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is controlled to be equal to P 总 ;P 总 =150KW.

[0045] On the other hand, an embodiment of the present application discloses an electronic device, which includes a processor and a memory, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to execute the charging control method of the charging pile as described in any of the above embodiments.

[0046] In another aspect, embodiments of the present application disclose a computer program product or computer program, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the charging control method for a charging pile as described in any of the above embodiments.

[0047] Compared with the prior art, the charging control method, system, device and medium of a charging pile provided by the embodiments of the present invention enable a dual-gun DC charging pile to effectively adjust the charging power of a vehicle according to the charging needs and charging priority of the vehicle when changing from single-gun charging to dual-gun charging, in the dual-gun charging state, and from dual-gun charging to single-gun charging, thereby improving charging efficiency, reducing power waste and avoiding instantaneous large reduction or increase in the charging power of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0049] Figure 1 This is a flow chart of a charging control method for a charging pile provided by an embodiment of the present invention.

[0050] Figure 2 This is a structural block diagram of the charging control system of the charging pile provided by an embodiment of the present invention.

[0051] Figure 3 Schematic diagram of the structure of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] refer to Figure 1 , an embodiment of the present invention provides a charging control method for a charging pile, comprising steps S1 to S6:

[0054] S1. When the first DC charging gun is connected to the first vehicle and is charging, when the second DC charging gun is connected to the second vehicle, the power requirement P of the second vehicle is calculated based on the required voltage and current sent by the second vehicle. 需（2） ;

[0055] Among them, the charging pile includes the first DC charging gun and the second DC charging gun. The maximum charging power of a single DC gun is 150KW, and the maximum charging power of the two DC guns when charging at the same time is 150KW; the voltage range is 200V-900V.

[0056] It should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly identifying the technical features indicated. That is, in this embodiment, the first and second DC charging cables are essentially the same; they are distinguished solely based on the charging start time of the connected vehicle to facilitate a better understanding of the implementation of the technical solutions of the present invention.

[0057] S2. Obtain the current real-time output power P of the first DC charging gun according to the current real-time voltage and current output by the first DC charging gun. 实（1） ;

[0058] In a specific implementation, by collecting the real-time voltage data and real-time current data currently output by the first DC charging gun (for example, through a DC energy meter), the real-time output power P currently output by the first DC charging gun to the first vehicle connected thereto can be calculated. 实（1） .

[0059] S3. When P is satisfied 需（2） +P 实（1） ≤P 总 When the output power of the second DC charging gun is controlled to be P 需（2） Charge the second vehicle, otherwise execute step S4; wherein, P 总 is the maximum DC charging power of the charging pile;

[0060] Understandably, if P 需（2） +P 实（1） ≤P 总 , indicating that the current remaining charging power of the charging pile is greater than the battery power requirement of the second vehicle connected to the second DC charging gun, and can meet its charging power requirement, because it can be charged according to its charging power requirement P 需（2） The second vehicle is charged.

[0061] S4. Calculate the target charging power P of the first vehicle according to the charging priorities of the first vehicle and the second vehicle. 标（1） and the target charging power P for the second vehicle 标（2） , and P 标（1） and P 标（2） Satisfied: P 标（1） + P 标（2） =P 总 , P 标（1） / P 标（2） =w1 / w2, where w1 and w2 are the charging priority scores of the first vehicle and the second vehicle, respectively, and the charging priority scores are calculated based on the vehicle's charging start time, remaining charging time, and user level;

[0062] Understandably, if P 需（2） +P 实（1） >P 总 , indicating that the current remaining charging power of the charging pile is less than the battery power required by the second vehicle connected to the second DC charging gun, and cannot meet its charging power demand. The charging power allocation for the first and second vehicles needs to be adjusted. In specific implementation, the charging power allocated to the first and second vehicles is calculated based on the charging priority of the first and second vehicles. The charging priority score can be calculated based on a preset algorithm combined with the vehicle's charging start time, remaining charging time, and user level.

[0063] S5, when P 实（1） ≤P 标（1） When the output power of the second DC charging gun is controlled to be P 总 -P 实（1） The difference between the charging voltage and the charging voltage is used to charge the second vehicle;

[0064] Understandably, if P 实（1） ≤P 标（1） , indicating that the current charging power demand of the first vehicle is less than its target charging power. In this way, the current remaining charging power P of the charging pile can be 总 -P 实（1） It is used for charging with the second DC charging gun without limiting the target charging power of the second DC charging gun.

[0065] S6, when P 实（1） >P 标（1） When the output power of the second DC charging gun is controlled to P 总 -P 实（1） The second vehicle is charged by the difference between the first and second DC charging guns, and then the output power of the first DC charging gun and the second DC charging gun are adjusted synchronously, so that the output power of the first DC charging gun is increased from P 实（1） Reduce to P标（1） The slope k1 and the output power of the second DC charging gun are from P 总 -P 实（1） Raised to P 标（2） The slope k2 is less than or equal to k0 and the synchronization adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun before adjusting to the target charging power is less than or equal to P 总 ; Wherein, k0 is the preset power adjustment reference slope.

[0066] In specific implementation, if P 实（1） ≤P 标（1） , indicating that the current charging power demand of the first vehicle is greater than its target charging power. At this time, the excess output power of the first DC charging gun needs to be transferred to the second DC charging gun. In order to avoid a sudden and substantial reduction in the output power of the first DC charging gun, in this embodiment, the current remaining charging power P of the charging pile is firstly 总 -P 实（1） The second DC charging gun is used to charge the second vehicle, and then the output power of the first DC charging gun and the second DC charging gun are adjusted synchronously, so that the output power of the first DC charging gun is adjusted from P 实（1） Reduce to P 标（1） The slope k1 and the output power of the second DC charging gun are from P 总 -P 实（1） Raised to P 标（2） The slope k2 is less than or equal to k0 and the synchronization adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun before adjusting to the target charging power is less than or equal to P 总 .

[0067] It is understood that during the output power adjustment process, the power change may not be linear, but may be a step-by-step straight line or a curve. Accordingly, the slopes k1 and k2 may be step-by-step slopes or average slopes, depending on the power adjustment method used. In addition, to minimize the synchronization adjustment time, different power adjustment methods can be compared and the one with the shortest synchronization adjustment time can be selected.

[0068] In addition, k0 is a preset power adjustment reference slope. The setting of k0 can effectively avoid large changes in charging power during adjustment.

[0069] In another preferred embodiment, the charging control method of the charging pile further includes the steps of:

[0070] S7. During the charging process of the first and second DC charging guns for the first and second vehicles, respectively, the output power of the first and second DC charging guns are adjusted in real time according to changes in the battery charging requirements of the first and second vehicles, specifically including:

[0071] S71, when P 需’（1） +P 需’（2） ≤P 总 When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 Among them, P 实’（1） 、P 实’（2） The real-time output power of the first DC charging gun and the second DC charging gun respectively;

[0072] S72, when P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 标（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 标（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ;

[0073] S73, when P 需’（1） +P 需’（2） >P 总 And P 需’（1） ≤P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 总 -P 需’（1）The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ;

[0074] S74, when P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） ≤P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 总 -P 需’（2） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 .

[0075] In another preferred embodiment, the charging control method of the charging pile further includes the steps of:

[0076] S8. When the first DC charging gun or the second DC charging gun finishes charging the first vehicle or the second vehicle, obtain the battery charging requirements P of the first vehicle or the second vehicle connected to the first DC charging gun or the second DC charging gun that is still in the charging state. 需’’（1） 、P 需’’（2） ;

[0077] If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 需’’（1） The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 需’’（2） The slope is less than or equal to k0 and the adjustment time is the shortest;

[0078] If P 需’’（1） >P 总 or P 需’’（2） >P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 总 The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 总 The slope is less than or equal to k0 and the adjustment time is the shortest;

[0079] Among them, P 实’’（1） 、P 实’’（2） are the real-time output powers of the first DC charging gun and the second DC charging gun, respectively; when the first DC charging gun finishes charging, the second DC charging gun is replaced by the first DC charging gun and the process returns to step S1.

[0080] It can be understood that in any of the above embodiments, preferably, the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment process is controlled to be equal to P 总 Among them, P 总 =150KW

[0081] Next, we will combine Figure 2 A charging control system of a charging pile is described in detail to better understand the charging control method of the charging pile of the present invention.

[0082] like Figure 2 As shown, a charging control system for a charging pile is disclosed, which includes a first DC charging gun 11, a second DC charging gun 12, a first DC meter 110, a second DC meter 120, a power module 1 and a control module 2; the power module 1 is used to convert AC power input from the power grid into DC power and output it to the first DC charging gun 11 and the second DC charging gun 12 respectively. The first DC meter 110 and the second DC meter 120 are respectively arranged at the output ends of the first DC charging gun 11 and the second DC charging gun 12 to obtain the real-time voltage and real-time current of the first DC charging gun 11 and the second DC charging gun 12 and feed them back to the control module 2; the control module 2 controls the power module 1 to output the corresponding voltage and current to the first DC charging gun 11 and the second DC charging gun 12 according to the real-time voltage and real-time current fed back by the first DC meter 110 and the second DC meter 120 and the charging demand of the vehicle battery connected to the first DC charging gun 11 and the second DC charging gun 12, including:

[0083] When the first DC charging gun 11 is connected to the first vehicle and is in the charging state, when the second DC charging gun 12 is connected to the second vehicle, the required power P of the second vehicle is calculated based on the required voltage and required current sent by the second vehicle. 需（2） ;

[0084] The current real-time output power P of the first DC charging gun 11 is obtained according to the real-time voltage and real-time current currently output by the first DC charging gun 11. 实（1） ;

[0085] When P is satisfied 需（2） +P 实（1） ≤P 总When the output power of the second DC charging gun 12 is controlled to be P 需（2） Charge the second vehicle, otherwise execute step S4; wherein, P 总 is the maximum DC charging power of the charging pile;

[0086] The target charging power P of the first vehicle is calculated based on the charging priority of the first vehicle and the second vehicle. 标（1） and the target charging power P for the second vehicle 标（2） , and P 标（1） and P 标（2） Satisfied: P 标（1） + P 标（2） =P 总 , P 标（1） / P 标（2） =w1 / w2, where w1 and w2 are the charging priority scores of the first vehicle and the second vehicle, respectively, and the charging priority scores are calculated based on the vehicle's charging start time, remaining charging time, and user level;

[0087] When P 实（1） ≤P 标（1） When the output power of the second DC charging gun 12 is controlled to be P 总 -P 实（1） The difference between the charging voltage and the charging voltage is used to charge the second vehicle;

[0088] When P 实（1） >P 标（1） When the output power of the second DC charging gun 12 is controlled to be P 总 -P 实（1） The second vehicle is charged by the difference between the first and second DC charging guns 11 and 12, and then the output power of the first DC charging gun 11 is adjusted synchronously from P to 实（1） Reduce to P 标（1） The slope k1 and the output power of the second DC charging gun 12 are from P 总 -P 实（1） Raised to P 标（2） The slope k2 is less than or equal to k0 and the synchronization adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun 11 and the second DC charging gun 12 before adjusting to the target charging power is less than or equal to P 总 ; Wherein, k0 is the preset power adjustment reference slope.

[0089] Preferably, the charging control system of the charging pile further includes:

[0090] During the process of charging the first vehicle and the second vehicle respectively by the first DC charging gun 11 and the second DC charging gun 12, the output power of the first DC charging gun 11 and the second DC charging gun 12 is adjusted in real time according to the change of the battery charging requirements of the first vehicle and the second vehicle, specifically including:

[0091] When P 需’（1） +P 需’（2） ≤P 总 When the output power of the first DC charging gun 11 is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun 12 are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment process is less than or equal to P 总 Among them, P 实’（1） 、P 实’（2） The real-time output power of the first DC charging gun 11 and the second DC charging gun 12 respectively;

[0092] When P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun 11 is increased from P 实’（1） Adjust to P 标（1） The slope and output power of the second DC charging gun 12 are from P 实’（2） Adjust to P 标（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment process is less than or equal to P 总 ;

[0093] When P 需’（1） +P 需’（2） >P 总 And P 需’（1） ≤P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun 11 is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun 12 are from P 实’（2） Adjust to P 总 -P 需’（1）The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment process is less than or equal to P 总 ;

[0094] When P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） ≤P 标（2） When the output power of the first DC charging gun 11 is increased from P 实’（1） Adjust to P 总 -P 需’（2） The slope and output power of the second DC charging gun 12 are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment process is less than or equal to P 总 .

[0095] Preferably, the charging control system of the charging pile further includes:

[0096] When the first DC charging gun 11 or the second DC charging gun 2 finishes charging the first vehicle and the second vehicle, the battery charging demand P of the first vehicle and the second vehicle connected to the first DC charging gun 11 or the second DC charging gun 12 that are still in the charging state is obtained. 需’’（1） 、P 需’’（2） ;

[0097] If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , so that the output power of the first DC charging gun 11 changes from P 实’’（1） Adjust to P 需’’（1） The slope or the output power of the second DC charging gun 12 changes from P 实’’（2） Adjust to P 需’’（2） The slope is less than or equal to k0 and the adjustment time is the shortest;

[0098] If P 需’’（1） >P 总 or P 需’’（2） >P 总 , so that the output power of the first DC charging gun 11 changes from P 实’’（1） Adjust to P 总 The slope or the output power of the second DC charging gun 12 changes from P 实’’（2） Adjust to P 总The slope is less than or equal to k0 and the adjustment time is the shortest;

[0099] Among them, P 实’’（1） 、P 实’’（2） They are the real-time output power of the first DC charging gun 11 and the second DC charging gun 12 respectively; when the first DC charging gun 11 finishes charging, the second DC charging gun 12 is replaced by the first DC charging gun 11 and a new round of power adjustment control is performed.

[0100] Preferably, in the charging control system of the charging pile, the sum of the real-time output power of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment process is controlled to be equal to P 总 ;P 总 =150KW.

[0101] The specific implementation of the charging control system of the charging pile in this embodiment can refer to the description of the charging control method of the charging pile in the above embodiment, and will not be repeated here.

[0102] It can be understood that in this embodiment, the charging pile also includes various functional modules to ensure that the charging pile can be normally implemented, such as energy storage batteries, etc., which are omitted here.

[0103] In addition, the charging control system of the charging pile provided in this embodiment may also include a first AC charging gun and a second AC charging gun. The maximum charging power of the first and second AC charging guns is 22 kW. The combined maximum charging power of the two AC charging ports is 44 kW, resulting in a total maximum charging power of 194 kW for the entire charging pile. When the charging pile starts AC charging, it monitors the output voltage and current and sets upper limit protection values ​​to ensure normal output voltage and current, thereby ensuring normal charging.

[0104] like Figure 3 As shown, an embodiment of the present invention provides an electronic device 300, including a memory 310 and a processor 320, wherein the memory 310 is used to store one or more computer instructions, and the processor 320 is used to call and execute the one or more computer instructions, thereby realizing any of the above-mentioned charging control methods for the charging pile.

[0105] That is, the electronic device 300 includes: a processor 320 and a memory 310, in which computer program instructions are stored. When the computer program instructions are executed by the processor, the processor 320 executes any of the above-mentioned charging control methods for the charging pile.

[0106] Further, if Figure 3As shown, the electronic device 300 further includes a network interface 330 , an input device 340 , a hard disk 350 , and a display device 360 ​​.

[0107] The aforementioned interfaces and devices can be interconnected via a bus architecture. A bus architecture can include any number of interconnected buses and bridges. Specifically, various circuits, such as one or more central processing units (CPUs), represented by processor 320, and one or more memories, represented by memory 310, are connected together. The bus architecture can also connect various other circuits, such as peripheral devices, voltage regulators, and power management circuits. It will be appreciated that the bus architecture is used to enable connectivity and communication between these components. In addition to a data bus, a bus architecture also includes a power bus, a control bus, and a status signal bus. These are well known in the art and will not be described in detail herein.

[0108] The network interface 330 can be connected to a network (such as the Internet, a local area network, etc.), obtain relevant data from the network, and save it in the hard disk 350.

[0109] The input device 340 can receive various instructions input by the operator and send them to the processor 320 for execution. The input device 340 can include a keyboard or a pointing device (e.g., a mouse, a trackball, a touchpad, or a touch screen).

[0110] The display device 360 ​​can display the results obtained by the processor 320 executing the instructions.

[0111] The memory 310 is used to store programs and data necessary for the operation of the operating system, as well as data such as intermediate results during the calculation process of the processor 320.

[0112] It is understood that the memory 310 in the embodiments of the present invention can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. The memory 310 of the apparatus and method described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0113] In some embodiments, the memory 310 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 311 and application programs 312 .

[0114] The operating system 311 includes various system programs, such as a framework layer, a core library layer, and a driver layer, for implementing various basic services and handling hardware-based tasks. Application programs 312 include various application programs, such as a browser, for implementing various application services. Programs implementing the methods of the embodiments of the present invention may be included in application programs 312.

[0115] The processor 320 executes any one of the above-mentioned charging pile charging control methods when calling and executing the application and data stored in the memory 310, specifically, the program or instruction stored in the application 312.

[0116] The charging control method for a charging pile disclosed in the above embodiments of the present invention can be applied to or implemented by the processor 320. The processor 320 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the processor 320 or by software instructions. The above processor 320 can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf field programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present invention can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory 310 , and the processor 320 reads the information in the memory 310 and completes the steps of the above method in combination with its hardware.

[0117] It is understood that the embodiments described herein can be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or a combination thereof.

[0118] For software implementation, the techniques described herein can be implemented by modules (e.g., procedures, functions, etc.) that perform the functions described herein. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

[0119] Specifically, the processor 320 is further configured to read the computer program and execute any of the above-mentioned charging control methods for the charging pile.

[0120] The present application also provides a computer-readable storage medium, which stores a computer program. The computer program includes program instructions. When the program instructions are executed by a processor, the processor executes the above method, such as executing the method executed by the above electronic device, which is not repeated here.

[0121] Optionally, the storage medium involved in this application, such as computer-readable storage medium, may be non-volatile or volatile.

[0122] Optionally, the computer-readable storage medium may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function, etc.; the data storage area may store data created based on the use of blockchain nodes, etc. Among them, the blockchain referred to in this application is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain is essentially a decentralized database, a string of data blocks generated by cryptographic methods. Each data block contains information about a batch of network transactions, which is used to verify the validity of its information (anti-counterfeiting) and generate the next block. The blockchain may include a blockchain underlying platform, a platform product service layer, and an application service layer.

[0123] It should be noted that for the aforementioned various method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0124] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection of some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0125] In addition, the functional units in various embodiments of the present invention may be integrated into a single processing unit, each unit may be physically included separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or hardware plus software functional units.

[0126] The aforementioned integrated unit implemented as a software functional unit can be stored in a computer-readable storage medium. The software functional unit, stored in a storage medium, includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to execute portions of the sending and receiving methods described in various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a removable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0127] The above disclosures are merely some preferred embodiments of the present invention, and certainly cannot be used to limit the scope of the present invention. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A charging control method for a charging pile, wherein the charging pile includes a first DC charging gun and a second DC charging gun, characterized in that: The charging control method of the charging pile comprises the steps of: S1. When the first DC charging gun is connected to the first vehicle and is charging, when the second DC charging gun is connected to the second vehicle, the power requirement P of the second vehicle is calculated based on the required voltage and current sent by the second vehicle. 需（2） ; S2. Obtain the current real-time output power P of the first DC charging gun according to the current real-time voltage and current output by the first DC charging gun. 实（1） ; S3. When P is satisfied 需（2） +P 实（1） ≤P 总 When the output power of the second DC charging gun is controlled to be P 需（2） Charge the second vehicle, otherwise execute step S4; wherein, P 总 is the maximum DC charging power of the charging pile; S4. Calculate the target charging power P of the first vehicle according to the charging priorities of the first vehicle and the second vehicle. 标（1） and the target charging power P for the second vehicle 标（2） , and P 标（1） and P 标（2） Satisfied: P 标（1） + P 标（2） =P 总 , P 标（1） / P 标（2） =w1 / w2, where w1 and w2 are the charging priority scores of the first vehicle and the second vehicle, respectively, and the charging priority scores are calculated based on the vehicle's charging start time, remaining charging time, and user level; S5, when P 实（1） ≤P 标（1） When the output power of the second DC charging gun is controlled to be P 总 -P 实（1） The difference between the charging voltage and the charging voltage is used to charge the second vehicle; S6, when P 实（1） >P 标（1） When the output power of the second DC charging gun is controlled to P 总 -P 实（1） The second vehicle is charged by the difference between the first and second DC charging guns, and then the output power of the first DC charging gun and the second DC charging gun are adjusted synchronously, so that the output power of the first DC charging gun is increased from P 实（1） Reduce to P 标（1） The slope k1 and the output power of the second DC charging gun are from P 总 -P 实（1） Raised to P 标（2） The slope k2 is less than or equal to k0 and the synchronization adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun before adjusting to the target charging power is less than or equal to P 总 ; Wherein, k0 is the preset power adjustment reference slope; S7. During the charging process of the first and second DC charging guns for the first and second vehicles, respectively, the output power of the first and second DC charging guns are adjusted in real time according to changes in the battery charging requirements of the first and second vehicles, specifically including: S71, when P 需’（1） +P 需’（2） ≤P 总 When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 Among them, P 实’（1） 、P 实’（2） The real-time output power of the first DC charging gun and the second DC charging gun respectively; S72, when P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 标（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 标（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ; S73, when P 需’（1） +P 需’（2） >P 总 And P 需’（1） ≤P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 总 -P 需’（1） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ; S74, when P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） ≤P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 总 -P 需’（2） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ; S8. When the first DC charging gun or the second DC charging gun finishes charging the first vehicle or the second vehicle, obtain the battery charging requirements P of the first vehicle or the second vehicle connected to the first DC charging gun or the second DC charging gun that is still in the charging state. 需’’（1） 、P 需’’（2） ; If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 需’’（1） The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 需’’（2） The slope is less than or equal to k0 and the adjustment time is the shortest; If P 需’’（1） >P 总 or P 需’’（2） >P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 总 The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 总 The slope is less than or equal to k0 and the adjustment time is the shortest; Among them, P 实’’（1） 、P 实’’（2） are the real-time output powers of the first DC charging gun and the second DC charging gun, respectively; when the first DC charging gun finishes charging, the second DC charging gun is replaced by the first DC charging gun and the process returns to step S1.

2. The charging control method of the charging pile according to claim 1, characterized in that: Control the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process to be equal to P 总 ;P 总 =150KW.

3. A charging control system for a charging pile, characterized in that: The system includes a first DC charging gun, a second DC charging gun, a first DC meter, a second DC meter, a power module, and a control module; the power module is used to convert AC power input from the power grid into DC power and output it to the first DC charging gun and the second DC charging gun, respectively. The first DC meter and the second DC meter are respectively provided at the output ends of the first DC charging gun and the second DC charging gun to obtain the real-time voltage and real-time current of the first DC charging gun and the second DC charging gun, and feed them back to the control module; The control module controls the power module to output corresponding voltage and current to the first DC charging gun and the second DC charging gun based on the real-time voltage and real-time current fed back by the first DC meter and the second DC meter and the charging requirements of the vehicle batteries connected to the first DC charging gun and the second DC charging gun, including: When the first DC charging gun is connected to the first vehicle and is in charging state, when the second DC charging gun is connected to the second vehicle, the required power P of the second vehicle is calculated based on the required voltage and required current sent by the second vehicle. 需（2） ; The current real-time output power P of the first DC charging gun is obtained according to the real-time voltage and real-time current currently output by the first DC charging gun. 实（1） ; When P is satisfied 需（2） +P 实（1） ≤P 总 When the output power of the second DC charging gun is controlled to be P 需（2） Charge the second vehicle, otherwise execute step S4; wherein, P 总 is the maximum DC charging power of the charging pile; The target charging power P of the first vehicle is calculated based on the charging priority of the first vehicle and the second vehicle. 标（1） and the target charging power P for the second vehicle 标（2） , and P 标（1） and P 标（2） Satisfied: P 标（1） + P 标（2） =P 总 , P 标（1） / P 标（2） =w1 / w2, where w1 and w2 are the charging priority scores of the first vehicle and the second vehicle, respectively, and the charging priority scores are calculated based on the vehicle's charging start time, remaining charging time, and user level; When P 实（1） ≤P 标（1） When the output power of the second DC charging gun is controlled to be P 总 -P 实（1） The difference between the charging voltage and the charging voltage is used to charge the second vehicle; When P 实（1） >P 标（1） When the output power of the second DC charging gun is controlled to P 总 -P 实（1） The second vehicle is charged by the difference between the first and second DC charging guns, and then the output power of the first DC charging gun and the second DC charging gun are adjusted synchronously, so that the output power of the first DC charging gun is increased from P 实（1） Reduce to P 标（1） The slope k1 and the output power of the second DC charging gun are from P 总 -P 实（1） Raised to P 标（2） The slope k2 is less than or equal to k0 and the synchronization adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun before adjusting to the target charging power is less than or equal to P 总 ; Wherein, k0 is the preset power adjustment reference slope; During the process of charging the first vehicle and the second vehicle respectively by the first DC charging gun and the second DC charging gun, adjusting the output power of the first DC charging gun and the second DC charging gun in real time according to changes in battery charging requirements of the first vehicle and the second vehicle specifically includes: When P 需’（1） +P 需’（2） ≤P 总 When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 Among them, P 实’（1） 、P 实’（2） The real-time output power of the first DC charging gun and the second DC charging gun respectively; When P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 标（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 标（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ; When P 需’（1） +P 需’（2） >P 总 And P 需’（1） ≤P 标（1） 、P 需’（2） >P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 需’（1） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 总 -P 需’（1） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ; When P 需’（1） +P 需’（2） >P 总 And P 需’（1） >P 标（1） 、P 需’（2） ≤P 标（2） When the output power of the first DC charging gun is increased from P 实’（1） Adjust to P 总 -P 需’（2） The slope and output power of the second DC charging gun are from P 实’（2） Adjust to P 需’（2） The slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 ; When the first DC charging gun or the second DC charging gun finishes charging the first vehicle or the second vehicle, the battery charging demand P of the first vehicle or the second vehicle connected to the first DC charging gun or the second DC charging gun that is still in the charging state is obtained. 需’’（1） 、P 需’’（2） ; If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 需’’（1） The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 需’’（2） The slope is less than or equal to k0 and the adjustment time is the shortest; If P 需’’（1） >P 总 or P 需’’（2） >P 总 , so that the output power of the first DC charging gun is increased from P 实’’（1） Adjust to P 总 The slope or output power of the second DC charging gun changes from P 实’’（2） Adjust to P 总 The slope is less than or equal to k0 and the adjustment time is the shortest; Among them, P 实’’（1） 、P 实’’（2） They are the real-time output power of the first DC charging gun and the second DC charging gun respectively; when the first DC charging gun finishes charging, the second DC charging gun is replaced by the first DC charging gun and a new round of power adjustment control is performed.

4. The charging control system of the charging pile according to claim 3, characterized in that: Control the sum of the real-time output power of the first DC charging gun and the second DC charging gun during the adjustment process to be equal to P 总 ;P 总 =150KW.

5. An electronic device, characterized in that: The device comprises a processor and a memory, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the charging control method of the charging pile as described in claim 1 or 2.

6. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which includes program instructions. When the program instructions are executed by a processor, the processor executes the charging control method for the charging pile according to claim 1 or 2.

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