Charging control method, system and equipment of charging pile and medium

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 a required power P required of the second vehicle based on a required voltage and a required current sent by the second vehicle (2); obtaining the current real-time output power P real (1) of the first direct-current charging gun according to the real-time voltage and the real-time current currently output by the first direct-current charging gun; when P real (1) is greater than P standard (1), controlling the output power of a second direct current charging gun to charge a second vehicle according to the difference value of P total-P real (1), and then synchronously adjusting the output power of the first direct current charging gun and the second direct current charging gun, the slope k1 of the output power of the first direct-current charging gun is reduced from P real (1) to P standard (1), the slope k2 of the output power of the second direct-current charging gun is increased from P total-P real (1) to P standard (2) and is smaller than or equal to k0, and the synchronous adjustment time is shortest.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging, and particularly to a charging control method, system, device 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. And the construction of charging infrastructure is an important guarantee for the popularization of electric vehicles.

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

[0004] Most of the existing single machine with dual charging guns or multiple charging guns usually adopt the way that the dual charging guns or multiple charging guns are distributed according to a fixed power (such as average power distribution), and when a single charging gun is used, they are in parallel. This way will cause the phenomenon that some guns have redundant power while some guns 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 DC charging gun (for example, the first DC charging gun) is already connected to a vehicle and in the charging state (especially when the DC single gun outputs at the maximum output power of the charging pile), when another DC charging gun (for example, the second DC charging gun) is connected to a vehicle for charging, if the power average distribution method is used for adjustment, the charging power output by the first DC charging gun will change suddenly (significantly decrease instantaneously), which will affect the charging efficiency of the vehicle connected to it and is likely to cause certain damage to the vehicle's battery. Summary of the Invention

[0006] The purpose 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 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. The charging pile includes a first DC charging gun and a second DC charging gun. The charging control method of the charging pile includes the steps: S1. When the first DC charging gun is already connected to the first vehicle and in the charging state, when the second DC charging gun is connected to the second vehicle, based on the required voltage and required current sent by the second vehicle, calculate the required power P of 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 real-time current output by the first DC charging gun 实（1） ; S3. When P is satisfied需（2） +P 实（1） ≤P 总 When it is, control the output power of the second DC charging gun to charge the second vehicle according to P 需（2） , otherwise, execute step S4; where P 总 is the maximum DC charging power of the charging pile; S4. Calculate the target charging power P of the first vehicle and the target charging power P of the second vehicle according to the charging priorities of the first vehicle and the second vehicle 标（1） and the target charging power P of the second vehicle 标（2） , and P 标（1） and P 标（2） satisfy: 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 charging start time, remaining charging duration and user level of the vehicle; S5. When P 实（1） ≤P 标（1） When it is, control the output power of the second DC charging gun to charge the second vehicle according to the difference of P 总 - P 实（1） ; S6. When P 实（1） >P 标（1） When it is, first control the output power of the second DC charging gun to charge the second vehicle according to the difference of P 总 - P 实（1） , then synchronously adjust the output powers of the first DC charging gun and the second DC charging gun, so that the slope k1 of the output power of the first DC charging gun decreasing from P 实（1） to P 标（1） and the slope k2 of the output power of the second DC charging gun increasing from P 总 - P 实（1） to P 标（2） are less than or equal to k0 and the synchronous adjustment time is the shortest, and the sum of the real-time output powers 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 ; where k0 is a preset power adjustment reference slope.

[0008] Preferably, the charging control method of the charging pile further includes the step: S7. During the charging process of the first DC charging gun and the second DC charging gun for the first vehicle and the second vehicle respectively, the output powers of the first DC charging gun and the second DC charging gun will be adjusted in real time according to the changes in the battery charging requirements of the first vehicle and the second vehicle, specifically including: S71. When P 需’（1） +P 需’（2） ≤P 总 , adjust the output power of the first DC charging gun from P 实’（1） to P 需’（1） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 需’（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment process less than or equal to P 总 ; where 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; S72. When P 需’（1） +P 需’（2） >P 总 and P 需’（1） >P 标（1） , P 需’（2） >P 标（2） , adjust the output power of the first DC charging gun from P 实’（1） to P 标（1） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 标（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment process 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） , adjust the output power of the first DC charging gun from P 实’（1） to P 需’（1） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 总 - P 需’（1） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment process 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） , adjust the output power of the first DC charging gun from P 实’（1） to P 总 - P 需’（2） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 需’（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment less than or equal to P 总 .

[0009] Preferably, the charging control method of the charging pile further includes the steps: S8. When the first DC charging gun or the second DC charging gun finishes charging the first vehicle and the second vehicle, obtain the battery charging demands P 需’’（1） 、P 需’’（2） of the first vehicle and the second vehicle connected to the first DC charging gun or the second DC charging gun that is still in the charging state; If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , adjust the output power of the first DC charging gun from P 实’’（1） to P 需’’（1） with a slope or adjust the output power of the second DC charging gun from P 实’’（2） to P 需’’（2） with a slope 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 , adjust the output power of the first DC charging gun from P 实’’（1） to P 总 with a slope or adjust the output power of the second DC charging gun from P 实’’（2） to P 总 with a slope less than or equal to k0 and the adjustment time is the shortest; wherein, 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, replace the second DC charging gun with the first DC charging gun and return to execute step S1.

[0010] Preferably, in the charging control method of the charging pile, 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 equal to P 总 ; P 总 = 150KW.

[0011] On the other hand, an embodiment of the present invention correspondingly provides a charging control system for a charging pile, including a first DC charging gun, a second DC charging gun, a first DC ammeter, a second DC ammeter, a power supply module, and a control module; the power supply module is used to convert the alternating current input from the power grid into direct current and output it to the first DC charging gun and the second DC charging gun respectively, and the first DC ammeter and the second DC ammeter 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 feedback them to the control module; the control module controls the power supply module to output corresponding voltage and current to the first DC charging gun and the second DC charging gun according to the real-time voltage and real-time current fed back by the first DC ammeter and the second DC ammeter 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 already connected to the first vehicle and is in the charging state, and when the second DC charging gun is connected to the second vehicle, based on the required voltage and required current sent by the second vehicle, calculate the required power P 需（2） ; Obtain the current real-time output power P 实（1） of the first DC charging gun according to the current real-time voltage and real-time current output by the first DC charging gun; When P 需（2） + P 实（1） ≤ P 总 , then control the output power of the second DC charging gun to charge the second vehicle according to P 需（2） , otherwise execute step S4; where P 总 is the maximum DC charging power of the charging pile; Calculate the target charging power P 标（1） of the first vehicle and the target charging power P 标（2） of the second vehicle according to the charging priorities of the first vehicle and the second vehicle, and P 标（1） and P 标（2） satisfy: 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 score is calculated based on the charging start time, remaining charging duration, and user level of the vehicle; When P 实（1） ≤ P 标（1） , then control the output power of the second DC charging gun to charge the second vehicle by the difference of P 总 - P 实（1） ; When P 实（1） > P 标（1） , then first control the output power of the second DC charging gun to charge the second vehicle by the difference of P 总 - P 实（1） , and then synchronously adjust the output powers of the first DC charging gun and the second DC charging gun so that the output power of the first DC charging gun decreases from P 实（1） to P 标（1） with a slope k1 and the output power of the second DC charging gun increases from P 总 - P 实（1） to P 标（2） with a slope k2 less than or equal to k0 and the synchronous adjustment time is the shortest, and the sum of the real-time output powers 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 ; where k0 is a preset reference slope for power adjustment.

[0012] Preferably, in the charging control system of the charging pile, it further includes: During the charging process of the first DC charging gun and the second DC charging gun for the first vehicle and the second vehicle respectively, adjust the output powers of the first DC charging gun and the second DC charging gun in real time according to the changes in the battery charging requirements of the first vehicle and the second vehicle, specifically including: When P 需’（1） + P 需’（2） ≤ P 总 , make the slope of the output power of the first DC charging gun from P 实’（1） to P 需’（1） and the slope of the output power of the second DC charging gun from P 实’（2） to P 需’（2） less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment is less than or equal to P 总 ; where 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 P 需’（1）+P 需’（2） >P 总 and P 需’（1） >P 标（1） 、P 需’（2） >P 标（2） When, adjust the output power of the first DC charging gun from P 实’（1） to P 标（1） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 标（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment 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, adjust the output power of the first DC charging gun from P 实’（1） to P 需’（1） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 总 -P 需’（1） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment 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, adjust the output power of the first DC charging gun from P 实’（1） to P 总 - P 需’（2） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 需’（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment less than or equal to P 总 .

[0013] Preferably, in the charging control system of the charging pile, it further includes: When the first DC charging gun or the second DC charging gun finishes charging the first vehicle and the second vehicle, obtain the battery charging demands P of the first vehicle and 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） and P 需’’（2） ; If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , make the slope of the output power of the first DC charging gun adjusted from P 实’’（1） to P 需’’（1） or the slope of the output power of the second DC charging gun adjusted from P 实’’（2） to P 需’’（2） be 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 , make the slope of the output power of the first DC charging gun adjusted from P 实’’（1） to P 总 or the slope of the output power of the second DC charging gun adjusted from P 实’’（2） to P 总 be less than or equal to k0 and the adjustment time is the shortest; Among them, P 实’’（1） and 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, replace the second DC charging gun with the first DC charging gun and execute a new round of power adjustment control.

[0014] Preferably, in the charging control system of the charging pile, control the sum of the real-time output powers 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.

[0015] On the other hand, an embodiment of the present application discloses an electronic device, which includes a processor and a memory. Among them, the memory is used to store a computer program, and the computer program includes program instructions. The processor is configured to execute the charging control method of the charging pile as described in any one of the above embodiments.

[0016] In another aspect, an embodiment of the present application discloses a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the charging control method of the charging pile described in any one of the foregoing embodiments.

[0017] Compared with the prior art, a charging control method, system, device and medium for a charging pile provided by an embodiment of the present invention can effectively adjust the charging power of a vehicle according to the charging requirements and charging priorities of the vehicle when the dual-gun DC charging pile changes from single-gun charging to dual-gun charging, in the dual-gun charging state, and when changing from dual-gun charging to single-gun charging, improve the charging efficiency, reduce power waste, and avoid a large instantaneous decrease or increase in the charging power of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0019] Figure 1 It is a flowchart of the charging control method for the charging pile provided by the embodiment of the present invention.

[0020] Figure 2 It is a structural block diagram of the charging control system for the charging pile provided by the embodiment of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the electronic device according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Refer to Figure 1 , an embodiment of the present invention provides a charging control method for a charging pile, including steps S1 to S6: S1. When the first DC charging gun is connected to the first vehicle and in the charging state, when the second DC charging gun is connected to the second vehicle, based on the required voltage and required current sent by the second vehicle, calculate the required power P of the second vehicle. 需（2） ; Among them, the charging pile includes a first DC charging gun and a second DC charging gun. The maximum DC single-gun charging power is 150KW, and the maximum combined charging power of the two DC guns during simultaneous charging is 150KW; the voltage range is 200V - 900V.

[0024] It can be understood that the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the indicated technical features. That is, in this embodiment, there is no essential difference between the first DC charging gun and the second DC charging gun. They are only divided based on the charging start time of the connected vehicle to better understand the implementation of the technical solution of the present invention.

[0025] S2. Obtain the current real-time output power P of the first DC charging gun according to the current real-time voltage and real-time current output by the first DC charging gun. 实（1） ; In specific implementation, collect the current real-time voltage data and real-time current data output by the first DC charging gun (for example, through a DC watt-hour meter), and then the current real-time output power P output by the first DC charging gun to the first vehicle connected to it can be calculated. 实（1） 。

[0026] S3. When P 需（2） +P 实（1） ≤P 总 , then control the output power of the second DC charging gun to charge the second vehicle according to P 需（2） , otherwise execute step S4; where P 总 is the maximum DC charging power of the charging pile. It can be understood that if P 需（2） +P 实（1） ≤P 总 , it means that the remaining charging power of the charging pile is greater than the battery required power of the second vehicle connected to the second DC charging gun and can meet its charging power requirement. Therefore, the second vehicle can be charged according to its charging power requirement P 需（2） .

[0027] S4. Calculate the target charging power P of the first vehicle and the target charging power P of the second vehicle according to the charging priorities of the first vehicle and the second vehicle, and P 标（1） and P 标（2） satisfy: P 标（1） and P 标（2） satisfy: 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 charging start time, remaining charging duration, and user level of the vehicle; It can be understood that if P 需（2） +P 实（1） >P 总 , it indicates that the remaining charging power of the charging pile is less than the battery demand power of the second vehicle connected to the second DC charging gun, and the charging power demand cannot be met. It is necessary to adjust the charging power distribution of the first vehicle and the second vehicle. Specifically, when implementing, the charging power that the first vehicle and the second vehicle can be allocated is calculated according to the charging priorities of the first vehicle and the second vehicle. Among them, the charging priority scores can be calculated based on a preset algorithm in combination with the charging start time, remaining charging duration, and user level of the vehicle.

[0028] S5. When P 实（1） ≤P 标（1） , then control the output power of the second DC charging gun to charge the second vehicle by the difference of P 总 - P 实（1） ; It can be understood that if P 实（1） ≤P 标（1） , it indicates that the current charging power demand of the first vehicle is less than its target charging power. In this way, the remaining charging power P 总 - P 实（1） of the charging pile can be used for the second DC charging gun to charge, without being limited to the target charging power of the second DC charging gun.

[0029] S6. When P 实（1） >P 标（1） , then first control the output power of the second DC charging gun to charge the second vehicle by the difference of P 总 - P 实（1） , and then synchronously adjust the output powers of the first DC charging gun and the second DC charging gun, so that the slope k1 of the output power of the first DC charging gun decreasing from P 实（1） to P 标（1） and the slope k2 of the output power of the second DC charging gun increasing from P 总 - P 实（1） to P 标（2） are less than or equal to k0 and the synchronous adjustment time is the shortest, and the sum of the real-time output powers 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 ; where k0 is a preset reference slope for power adjustment.

[0030] During specific implementation, if P 实（1） ≤P 标（1） , it indicates that the current charging power demand of the first vehicle is greater than its target charging power. At this time, the excess part of the output power of the first DC charging gun needs to be transferred to the second DC charging gun. Moreover, to avoid a sudden large reduction in the output power of the first DC charging gun, in this embodiment, first, the remaining charging power P 总 - P 实（1） of the charging pile is used for the second DC charging gun to charge the second vehicle, and then the output powers of the first DC charging gun and the second DC charging gun are synchronously adjusted so that the output power of the first DC charging gun decreases from P 实（1） to P 标（1） with a slope k1 and the output power of the second DC charging gun increases from P 总 - P 实（1） to P 标（2） with a slope k2, where k1 and k2 are less than or equal to k0 and the synchronous adjustment time is the shortest, and the sum of the real-time output powers 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 .

[0031] It can be understood that during the process of output power adjustment, the change of power may not be linear, it may be a step line or a curve. Correspondingly, the slope k1 and the slope k2 can be stepwise slopes or average slopes, which are specifically determined by the adopted power adjustment method. In addition, to ensure the shortest synchronous adjustment time, different power adjustment methods can be compared and the one with the shortest synchronous adjustment time can be selected.

[0032] In addition, k0 is a preset reference slope for power adjustment, and the setting of k0 can effectively avoid large fluctuations in charging power during adjustment.

[0033] In another preferred embodiment, the charging control method of the charging pile further includes the steps of: S7. During the charging process of the first DC charging gun and the second DC charging gun for the first vehicle and the second vehicle respectively, the output powers of the first DC charging gun and the second DC charging gun will be adjusted in real time according to the changes in the battery charging demands of the first vehicle and the second vehicle, specifically including: S71. When P 需’（1） + P 需’（2） ≤P 总 , adjust the output power of the first DC charging gun from P 实’（1） to P 需’（1） with a slope and the output power of the second DC charging gun from P实’（2） Adjust to P 需’（2） such that the slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment is less than or equal to P 总 ; where P 实’（1） and P 实’（2） are the real-time output powers 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） and P 需’（2） > P 标（2） , adjust the output power of the first DC charging gun from P 实’（1） to P 标（1） such that the slope and the output power of the second DC charging gun are adjusted from P 实’（2） to P 标（2） such that the slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment 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） and P 需’（2） > P 标（2） , adjust the output power of the first DC charging gun from P 实’（1） to P 需’（1） such that the slope and the output power of the second DC charging gun are adjusted from P 实’（2） to P 总 - P 需’（1） such that the slope is less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment 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） and P 需’（2） ≤ P 标（2） , adjust the output power of the first DC charging gun from P 实’（1） to P 总 - P 需’（2） such that the slope and the output power of the second DC charging gun are adjusted from P 实’（2） 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 powers of the first DC charging gun and the second DC charging gun during the adjustment process is less than or equal to P 总 .

[0034] In another preferred embodiment, the charging control method of the charging pile further includes the steps of: S8. When the first DC charging gun or the second DC charging gun finishes charging the first vehicle and the second vehicle, obtain the battery charging demands P 需’’（1） 、P 需’’（2） ; If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , adjust the output power of the first DC charging gun from P 实’’（1） to P 需’’（1） with a slope less than or equal to k0 and the shortest adjustment time; or adjust the output power of the second DC charging gun from P 实’’（2） to P 需’’（2） with a slope less than or equal to k0 and the shortest adjustment time; If P 需’’（1） >P 总 or P 需’’（2） >P 总 , adjust the output power of the first DC charging gun from P 实’’（1） to P 总 with a slope less than or equal to k0 and the shortest adjustment time; or adjust the output power of the second DC charging gun from P 实’’（2） to P 总 with a slope less than or equal to k0 and the shortest adjustment time; 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 ends charging, replace the second DC charging gun with the first DC charging gun and return to execute step S1.

[0035] It can be understood that in any of the above embodiments, preferably, control the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment process to be equal to P 总 ; among them, P 总 =150KW Next, a charging control system of a charging pile provided will be combined Figure 2 to be described in detail to better understand the charging control method of the charging pile of the present invention.

[0036] As Figure 2As 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 ammeter 110, a second DC ammeter 120, a power supply module 1, and a control module 2; the power supply module 1 is used to convert the alternating current input from the power grid into direct current and output it to the first DC charging gun 11 and the second DC charging gun 12 respectively, and the first DC ammeter 110 and the second DC ammeter 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 feedback them to the control module 2; the control module 2 controls the power supply module 1 to output 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 ammeter 110 and the second DC ammeter 120 and the charging requirements of the vehicle batteries connected to the first DC charging gun 11 and the second DC charging gun 12, including: When the first DC charging gun 11 is already connected to the first vehicle and in a charging state, when the second DC charging gun 12 is connected to the second vehicle, based on the required voltage and required current sent by the second vehicle, calculate the required power P of the second vehicle 需（2） ; Obtain the current real-time output power P of the first DC charging gun 11 according to the current real-time voltage and real-time current output by the first DC charging gun 11 实（1） ; When P 需（2） +P 实（1） ≤P 总 , then control the output power of the second DC charging gun 12 to charge the second vehicle according to P 需（2） , otherwise execute step S4; where P 总 is the maximum DC charging power of the charging pile; Calculate the target charging power P of the first vehicle and the target charging power P of the second vehicle according to the charging priorities of the first vehicle and the second vehicle 标（1） and the target charging power P of the second vehicle 标（2） , and P 标（1） and P 标（2） satisfy: 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 charging start time, remaining charging duration, and user level of the vehicle; When P 实（1） ≤P 标（1）When it is, the output power of the second DC charging gun 12 is controlled to charge the second vehicle according to the difference of P 总 - P 实（1） ; When P 实（1） > P 标（1） When it is, first control the output power of the second DC charging gun 12 to charge the second vehicle according to the difference of P 总 - P 实（1） , and then synchronously adjust the output powers of the first DC charging gun and the second DC charging gun 12, so that the output power of the first DC charging gun 11 decreases from P 实（1） to P 标（1） with a slope k1 and the output power of the second DC charging gun 12 increases from P 总 - P 实（1） to P 标（2） with a slope k2 less than or equal to k0 and the synchronous adjustment time is the shortest, and the sum of the real-time output powers 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 ; where k0 is a preset reference slope for power adjustment.

[0037] Preferably, in the charging control system of the charging pile, it further includes: During the charging processes of the first DC charging gun 11 and the second DC charging gun 12 for the first vehicle and the second vehicle respectively, the output powers of the first DC charging gun 11 and the second DC charging gun 12 are adjusted in real time according to the changes in the battery charging requirements of the first vehicle and the second vehicle. Specifically, it includes: When P 需’（1） + P 需’（2） ≤ P 总 When it is, make the slope of the output power of the first DC charging gun 11 from P 实’（1） adjusted to P 需’（1） and the slope of the output power of the second DC charging gun 12 from P 实’（2） adjusted to P 需’（2） less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output powers of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment is less than or equal to P 总 ; where P 实’（1） , P 实’（2） are the real-time output powers of the first DC charging gun 11 and the second DC charging gun 12 respectively; When P 需’（1） + P 需’（2） > P 总 and P 需’（1） > P 标（1） , P 需’（2） > P标（2） When, adjust the output power of the first DC charging gun 11 from P 实’（1） to P 标（1） with a slope such that the output power of the second DC charging gun 12 from P 实’（2） to P 标（2） has a slope less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output powers of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment 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, adjust the output power of the first DC charging gun 11 from P 实’（1） to P 需’（1） with a slope such that the output power of the second DC charging gun 12 from P 实’（2） to P 总 - P 需’（1） has a slope less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output powers of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment 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, adjust the output power of the first DC charging gun 11 from P 实’（1） to P 总 - P 需’（2） with a slope such that the output power of the second DC charging gun 12 from P 实’（2） to P 需’（2） has a slope less than or equal to k0 and the adjustment time is the shortest, and the sum of the real-time output powers of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment is less than or equal to P 总 .

[0038] Preferably, in the charging control system of the charging pile, it further includes: When the first DC charging gun 11 or the second DC charging gun 2 finishes charging the first vehicle and the second vehicle, obtain the battery charging demands P 需’’（1） , P 需’’（2） ; If P 需’’（1） ≤P 总 or P 需’’（2） ≤P 总 , adjust the output power of the first DC charging gun 11 from P 实’’（1） to P 需’’（1） with a slope or adjust the output power of the second DC charging gun 12 from P 实’’（2） to P 需’’（2） with a slope less than or equal to k0 and the shortest adjustment time; If P 需’’（1） >P 总 or P 需’’（2） >P 总 , adjust the output power of the first DC charging gun 11 from P 实’’（1） to P 总 with a slope or adjust the output power of the second DC charging gun 12 from P 实’’（2） to P 总 with a slope less than or equal to k0 and the shortest adjustment time; Among them, P 实’’（1） , P 实’’（2） are the real-time output powers of the first DC charging gun 11 and the second DC charging gun 12 respectively; when the first DC charging gun 11 finishes charging, replace the second DC charging gun 12 with the first DC charging gun 11 and execute a new round of power adjustment control.

[0039] Preferably, in the charging control system of the charging pile, control the sum of the real-time output powers of the first DC charging gun 11 and the second DC charging gun 12 during the adjustment process to be equal to P 总 ; P 总 =150KW.

[0040] For the specific implementation of the charging control system of the charging pile in this embodiment, reference can be made to the description of the charging control method of the charging pile in the above embodiment, which will not be elaborated here.

[0041] It can be understood that in this embodiment, the charging pile further includes various functional modules to ensure the normal implementation of the charging pile, such as energy storage batteries, etc., which are omitted here.

[0042] In addition, the charging control system of the charging pile provided in this embodiment may further include a first AC charging gun and a second AC charging gun. The maximum charging power of the first AC charging gun and the second AC charging gun is 22KW, and the total output power of the two AC charging ports is at most 44K. Then the total maximum charging power of the entire charging pile is 194KW. When the charging pile starts AC charging, it will monitor the output voltage and current, and ensure the normal output voltage and current according to the set upper limit protection value, so as to ensure normal charging.

[0043] As Figure 3 shown, an embodiment of the present invention provides an electronic device 300, including a memory 310 and a processor 320. 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, so as to implement the charging control method of any of the above-mentioned charging piles.

[0044] That is to say, the electronic device 300 includes: a processor 320 and a memory 310. Computer program instructions are stored in the memory 310. When the computer program instructions are run by the processor, the processor 320 is caused to execute the charging control method of any of the above-mentioned charging piles.

[0045] Further, as Figure 3 shown, the electronic device 300 further includes a network interface 330, an input device 340, a hard disk 350, and a display device 360.

[0046] The above-mentioned various interfaces and devices can be interconnected through a bus architecture. The bus architecture can include any number of interconnected buses and bridges. Specifically, one or more central processing units (CPUs) represented by the processor 320 and various circuits of one or more memories represented by the 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 can be understood that the bus architecture is used to implement the connection and communication between these components. In addition to the data bus, the bus architecture also includes a power bus, a control bus, and a status signal bus, which are well known in the art and will not be described in detail herein.

[0047] 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 can be stored in the hard disk 350.

[0048] The input device 340 can receive various instructions input by an operator and send them to the processor 320 for execution. The input device 340 can include a keyboard or a pointing device (such as a mouse, a trackball, a touchpad, or a touch screen, etc.).

[0049] The display device 360 can display the results obtained by the processor 320 executing instructions.

[0050] 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 in the calculation process of the processor 320.

[0051] It can be 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 memories.

[0052] In some embodiments, the memory 310 stores the following elements, executable modules, or data structures, or subsets or supersets thereof: an operating system 311 and application programs 312.

[0053] Among them, the operating system 311 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., and is used to implement various basic services and process hardware-based tasks. The application programs 312 include various application programs, such as a browser, etc., and are used to implement various application services. The program for implementing the method of the embodiments of the present invention can be included in the application programs 312.

[0054] When the above-mentioned processor 320 calls and executes the application programs and data stored in the memory 310, specifically, when it is the programs or instructions stored in the application programs 312, it executes the implementation process of any of the above-mentioned charging control methods of the charging pile.

[0055] The charging control method of the 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. In the implementation process, the steps of the above method can be completed by the integrated logic circuit of the hardware in the processor 320 or the instructions in the form of software. The above-mentioned processor 320 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, 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 may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present invention can be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by the combination of the hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory 310, and the processor 320 reads the information in the memory 310 and combines its hardware to complete the steps of the above method.

[0056] It can be understood that these embodiments described herein can be implemented using hardware, software, firmware, middleware, microcode, or any combination thereof. For a 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, or other electronic units for performing the functions described in this application, or any combination thereof.

[0057] For a software implementation, the technologies described herein can be implemented by modules (e.g., procedures, functions, etc.) that execute the functions described herein. The software code can be stored in a memory and executed by a processor. The memory can be implemented inside or outside the processor.

[0058] Specifically, the processor 320 is further configured to read the computer program and execute any one of the above-described charging control methods of the charging pile.

[0059] This application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. The computer program includes program instructions. When the program instructions are executed by the processor, the processor is caused to execute the above method, such as the method executed by the above-described electronic device, which will not be elaborated herein.

[0060] Optionally, the storage medium involved in the present application, such as a computer-readable storage medium, can be non-volatile or volatile.

[0061] Optionally, the computer-readable storage medium may mainly include a program storage area and a data storage area. Among them, the program storage area may store an operating system, application programs required for at least one function, etc.; the data storage area may store data created according to the use of the blockchain node, etc. Among them, the blockchain referred to in the present application is a new application mode of computer technologies such as distributed data storage, peer-to-peer transmission, consensus mechanism, and encryption algorithm. Blockchain, in essence, is a decentralized database, a string of data blocks generated by using cryptographic methods. Each data block contains information about a batch of network transactions, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block. The blockchain may include a blockchain underlying platform, a platform product service layer, an application service layer, etc.

[0062] It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present application is not limited by the described action sequence, because according to the present application, some steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present application.

[0063] In several embodiments provided by the present 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 illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in electrical, mechanical or other forms.

[0064] In addition, each functional unit in various embodiments of the present invention can be integrated in a processing unit, or each unit can be physically included separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware, or in the form of a hardware plus a software functional unit.

[0065] The integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional units are stored in a storage medium and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the transceiver method described in various embodiments of the present invention. The foregoing storage medium includes: various media that can store program codes such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc.

[0066] The foregoing disclosures are only some preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand the entire or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A charging control method for a charging pile, the charging pile including a first DC charging gun and a second DC charging gun, characterized in that, The charging control method of the charging pile includes the steps: S1. When the first DC charging gun is connected to the first vehicle and in the charging state, when the second DC charging gun is connected to the second vehicle, calculate the required power P of the second vehicle based on the required voltage and required current sent by the second vehicle 需（2） ; S2. Obtain the current real-time output power P of the first DC charging gun based on the current real-time voltage and real-time current output by the first DC charging gun 实（1） ; S3. When P 需（2） + P 实（1） ≤ P 总 is satisfied, control the output power of the second DC charging gun to charge the second vehicle at P 需（2） , otherwise execute step S4; where 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 of the second vehicle 标（2） , and P 标（1） and P 标（2） satisfy: 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 charging start time, remaining charging duration and user level of the vehicle; S5. When P 实（1） ≤ P 标（1） , then control the output power of the second DC charging gun to charge the second vehicle according to the difference value of P 总 - P 实（1） . S6. When P 实（1） > P 标（1） , first control the output power of the second DC charging gun to charge the second vehicle by the difference of P 总 - P 实（1） . Then synchronously adjust the output powers of the first DC charging gun and the second DC charging gun so that the output power of the first DC charging gun decreases from P 实（1） to P 标（1） with a slope k1 and the output power of the second DC charging gun increases from P 总 - P 实（1） to P 标（2） with a slope k2 less than or equal to k0 and the synchronous adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun before adjusting to the target charging power less than or equal to P 总 ; where k0 is a preset reference slope for power adjustment.

2. The charging control method of the charging pile according to claim 1, characterized in that, It further includes the steps: S7. During the charging process of the first DC charging gun and the second DC charging gun for the first vehicle and the second vehicle respectively, the output powers of the first DC charging gun and the second DC charging gun will be adjusted in real time according to the changes in the battery charging requirements of the first vehicle and the second vehicle. Specifically, it includes: S71. When P 需’（1） +P 需’（2） ≤P 总 , adjust the output power of the first DC charging gun from P 实’（1） to P 需’（1） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 需’（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment process less than or equal to P 总 ; where 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; S72. When P 需’（1） +P 需’（2） >P 总 and P 需’（1） >P 标（1） 、P 需’（2） >P 标（2） , adjust the output power of the first DC charging gun from P 实’（1） to P 标（1） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 标（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment 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） at this time, make the output power of the first DC charging gun adjust from P 实’（1） to P 需’（1） with a slope and the output power of the second DC charging gun adjust from P 实’（2） to P 总 -P 需’（1） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun 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） , adjust the output power of the first DC charging gun from P 实’（1） to P 总 -P 需’（2） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 需’（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment less than or equal to P 总 .

3. The charging control method of the charging pile according to claim 1 or 2, characterized in that It further includes the steps: S8. When the first DC charging gun or the second DC charging gun finishes charging the first vehicle and the second vehicle, obtain the battery charging demands P of the first vehicle and 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 slope of the output power of the first DC charging gun changing from P 实’’（1） to P 需’’（1） or the slope of the output power of the second DC charging gun changing from P 实’’（2） to P 需’’（2） 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 , adjust the output power of the first DC charging gun from P 实’’（1） to P 总 with a slope or adjust the output power of the second DC charging gun from P 实’’（2） to P 总 such that the slope is less than or equal to k0 and the adjustment time is the shortest; Among them, P 实’’（1） and P 实’’（2） are respectively the real-time output powers of the first DC charging gun and the second DC charging gun; when the first DC charging gun ends charging, replace the second DC charging gun with the first DC charging gun and return to execute step S1.

4. The charging control method of the charging pile according to claim 1 or 2, characterized in that Control the sum of the real-time output powers 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. A charging control system for a charging pile, characterized in that, It includes a first DC charging gun, a second DC charging gun, a first DC ammeter, a second DC ammeter, a power supply module and a control module; the power supply module is used to convert the alternating current input from the power grid into direct current and output it to the first DC charging gun and the second DC charging gun respectively, and the first DC ammeter and the second DC ammeter 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 feedback them to the control module; The control module controls the power supply module to output corresponding voltage and current to the first DC charging gun and the second DC charging gun according to the real-time voltage and real-time current fed back by the first DC ammeter and the second DC ammeter and the battery charging requirements of the vehicles 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 the first vehicle is in a charging state, when the second DC charging gun is connected to the second vehicle, based on the required voltage and required current sent by the second vehicle, calculate the required power P of the second vehicle 需（2） ; Obtain the current real-time output power P of the first DC charging gun based on the real-time voltage and real-time current currently output by the first DC charging gun 实（1） ; When P 需（2） + P 实（1） ≤ P 总 is satisfied, the output power of the second DC charging gun is controlled to charge the second vehicle at P 需（2） , otherwise, step S4 is executed; where P 总 is the maximum DC charging power of the charging pile. The target charging power P of the first vehicle is calculated according to the charging priorities of the first vehicle and the second vehicle 标（1） and the target charging power P of the second vehicle 标（2） , and P 标（1） and P 标（2） satisfy: 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 charging start time, the remaining charging duration, and the user level of the vehicle; When P 实（1） ≤ P 标（1） then control the output power of the second DC charging gun to charge the second vehicle by the difference of P 总 - P 实（1） . When P 实（1） > P 标（1） , first, control the output power of the second DC charging gun to charge the second vehicle according to the difference of P 总 - P 实（1） . Then, synchronously adjust the output powers of the first DC charging gun and the second DC charging gun, so that the output power of the first DC charging gun decreases from P 实（1） to P 标（1） with a slope k1 and the output power of the second DC charging gun increases from P 总 - P 实（1） to P 标（2） with a slope k2 less than or equal to k0 and the synchronous adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun before adjusting to the target charging power less than or equal to P 总 ; where k0 is a preset reference slope for power adjustment.

6. The charging control system of the charging pile according to claim 5, wherein It further includes: During the charging process of the first DC charging gun and the second DC charging gun for the first vehicle and the second vehicle respectively, the output powers of the first DC charging gun and the second DC charging gun are adjusted in real time according to the changes in the battery charging requirements of the first vehicle and the second vehicle. Specifically, it includes: When P 需’（1） +P 需’（2） ≤P 总 When the above condition is met, adjust the output power of the first DC charging gun from P 实’（1） to P 需’（1） with a slope, and adjust the output power of the second DC charging gun from P 实’（2） to P 需’（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun less than or equal to P 总 ; where 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 P 需’（1） +P 需’（2） >P 总 and P 需’（1） >P 标（1） 、P 需’（2） >P 标（2） , adjust the output power of the first DC charging gun from P 实’（1） to P 标（1） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 标（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment 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） , adjust the output power of the first DC charging gun from P 实’（1） to P 需’（1） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 总 - P 需’（1） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment 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） , adjust the output power of the first DC charging gun from P 实’（1） to P 总 - P 需’（2） with a slope and adjust the output power of the second DC charging gun from P 实’（2） to P 需’（2） with a slope less than or equal to k0 and the adjustment time is the shortest, and make the sum of the real-time output powers of the first DC charging gun and the second DC charging gun during the adjustment less than or equal to P 总 .

7. The charging control system of the charging pile according to claim 5 or 6, characterized in that It further includes: When the first DC charging gun or the second DC charging gun finishes charging the first vehicle and the second vehicle, obtain the battery charging demands P of the first vehicle and 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 such that the slope of the output power of the first DC charging gun from P 实’’（1） adjusted to P 需’’（1） or the slope of the output power of the second DC charging gun from P 实’’（2） adjusted to P 需’’（2） 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 , adjust the output power of the first DC charging gun from P 实’’（1） to P 总 with a slope or adjust the output power of the second DC charging gun from P 实’’（2） to P 总 such that the slope is less than or equal to k0 and the adjustment time is the shortest; wherein, P 实’’（1） and P 实’’（2） are respectively the real-time output powers of the first DC charging gun and the second DC charging gun; when the first DC charging gun ends charging, replace the second DC charging gun with the first DC charging gun and perform a new round of power adjustment control.

8. The charging control system of the charging pile according to claim 5 or 6, characterized in that, Control the sum of the real-time output powers 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.

9. An electronic device, characterized in that, It 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 call the program instructions to execute the charging control method of the charging pile as described in any one of claims 1-4.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, the computer program includes program instructions, and when the program instructions are executed by the processor, the processor is caused to execute the charging control method of the charging pile as described in any one of claims 1-4.

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