Power distribution method, system and medium applied to charging pile

Abstract

The application relates to the technical field of charging, in particular to a power distribution method and system applied to a charging stack and a medium, the charging stack comprising multiple inner rings, the inner ring comprising multiple charging modules, and the multiple inner rings being connected to form an outer ring; the method comprises the following steps: determining the charging power of a charging terminal, in the case that the charging power is lower than the required power, if the charging terminal is a fast-charging terminal, then idle modules in the inner ring where the charging module is located and idle modules in the outer ring are sequentially gathered to the charging terminal; if the charging terminal is a liquid-cooled terminal, then idle modules and calling modules in the inner ring where the charging module is located are sequentially gathered to the charging terminal, and then idle modules and calling modules in the outer ring are sequentially gathered to the charging terminal; the calling module represents a module in use which does not correspond to a charging gun; the module in use represents a charging module in a use state; the application can reduce the cost of the charging stack, and is compatible with fast-charging terminals and liquid-cooled terminals.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging, in particular to a power distribution method and system applied to a charging stack and a medium. BACKGROUND

[0002] At present, there are more and more new energy vehicles with high voltage and large current on the market. In order to meet the needs of users for fast power supply, there are more and more charging stack products on the market. The power distribution unit of the charging stack basically adopts full flexible distribution, that is, each charging module can be dispatched to any charging port for use. However, the more the number of charging modules, the more the number of DC contactors required. For example, if 20 charging modules are to be dispatched, 380 DC contactors are required, which costs a lot. In order to save costs, some manufacturers use ring control. If 20 charging modules are to be dispatched, 40 DC contactors are required. However, the obvious disadvantage is that the switching is not flexible and the power utilization rate is low.

[0003] Although the charging pile interface and other standards in the related art have been unified, the problem of "upward compatibility" has not been effectively solved. The "upward compatibility" of the charging pile refers to the charging pile that can adapt to and charge the electric vehicles with higher charging power, more advanced charging technology or new types of electric vehicles subsequently launched. With the continuous progress of battery technology, the demand of new energy vehicles for charging facilities will also continue to improve. Whether the charging piles built now are suitable for future new energy vehicles has also become a big problem facing the industry. The charging stack can solve the problem of "upward compatibility" of the charging pile. The charging stack does not need to consider the charging rate and battery capacity when charging, but only needs to charge according to the required power of the battery. In the future, when the energy density of the battery is improved and the capacity of the battery is increased, the charging stack can still achieve charging by increasing the charging power, thus effectively solving the problem of "upward compatibility" of the charging pile. SUMMARY

[0004] The present application aims to provide a power distribution method and system applied to a charging stack, which can reduce the number of DC contactors and the cost of the charging stack while meeting the full flexible scheduling, and is compatible with different specifications of fast charging terminals and liquid cooling terminals.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides a power distribution method applied to a charging pile, the charging pile comprising a plurality of inner rings, the inner rings comprising a plurality of charging modules, a plurality of the charging modules and a plurality of charging guns being connected one by one in a one-to-one correspondence, any two charging modules in the inner rings being connected through a direct current contactor, each of the inner rings having one charging module as an outer connection module, the outer connection modules in any two of the inner rings being connected through a direct current contactor to form an outer ring;

[0007] The method comprises the following steps:

[0008] S100, acquiring a demand power of a charging terminal and a charging gun connected to the charging terminal;

[0009] S200, determining a charging power of the charging terminal based on the charging gun connected to the charging terminal, determining a type of the charging terminal in a case that the charging power is lower than the demand power, and performing S300 if the charging terminal is a fast charging terminal, and performing S400 if the charging terminal is a liquid cooling terminal;

[0010] S300, sequentially gathering idle modules in an inner ring where the charging module is located and idle modules in the outer ring to the charging terminal; the idle module represents a charging module in an unused state;

[0011] S400, sequentially gathering idle modules in an inner ring where the charging module is located and calling modules to the charging terminal, and then sequentially gathering idle modules in the outer ring and the calling modules to the charging terminal; the calling module represents an in-use module that does not correspond to the charging gun, and the in-use module represents a charging module in a used state.

[0012] Optionally, the determination of the charging power of the charging terminal based on the charging gun connected to the charging terminal comprises:

[0013] determining the charging gun connected to the charging terminal, and taking a sum of powers of the charging modules connected to the charging gun as the charging power of the charging terminal; the fast charging terminal is connected to one or two charging guns, and the liquid cooling terminal is connected to one charging gun.

[0014] Optionally, the sequential gathering of the idle modules in the inner ring where the charging module is located and the idle modules in the outer ring to the charging terminal comprises:

[0015] S310, determining serial numbers of the idle modules in the inner ring where the charging module is located;

[0016] S320, sequentially gathering the idle modules in the inner ring to the charging terminal according to the serial numbers;

[0017] S330, updating the charging power in real time in combination with the idle modules gathered to the charging terminal, determining whether the charging power reaches the demand power; if yes, ending; otherwise, performing S340;

[0018] S340, determining whether the idle modules in the inner ring are all gathered to the charging terminal; if yes, performing S350; otherwise, performing S320;

[0019] S350, determining the serial numbers of the idle modules in the outer ring;

[0020] S360, gathering the idle modules in the outer ring to the charging terminal in sequence according to the serial numbers;

[0021] S370, updating the charging power in real time in combination with the idle modules gathered to the charging terminal, determining whether the charging power reaches the demand power; if yes, ending; otherwise, performing S360.

[0022] Optionally, the updating the charging power in real time in combination with the idle modules gathered to the charging terminal comprises:

[0023] adding the charging power of the charging terminal to the power of the charging modules gathered to the charging terminal, and updating the charging power of the charging terminal.

[0024] Optionally, after gathering the idle modules and the calling modules in the inner ring where the charging module is located to the charging terminal in sequence, the idle modules and the calling modules in the outer ring are gathered to the charging terminal in sequence, comprising:

[0025] S410, determining the serial numbers of the idle modules and the calling modules in the inner ring where the charging module is located;

[0026] S420, gathering the idle modules and the calling modules in the inner ring to the charging terminal in sequence according to the serial numbers;

[0027] S430, updating the charging power in real time in combination with the idle modules and the calling modules gathered to the charging terminal, determining whether the charging power reaches the demand power; if yes, ending; otherwise, performing S440;

[0028] S440, determining whether the idle modules and the calling modules in the inner ring are all gathered to the charging terminal; if yes, performing S450; otherwise, performing S420;

[0029] S450, determining the serial numbers of the idle modules and the calling modules in the remaining inner rings, and sorting the idle modules in the outer ring according to the serial numbers, and then sorting the calling modules in the outer ring according to the serial numbers;

[0030] S460, gathering the idle modules and the calling modules in the outer ring to the charging terminal in sequence according to the serial numbers;

[0031] S470, in combination with the idle modules and the calling modules gathered to the charging terminal, real-time update the charging power, determine whether the charging power reaches the demand power; if yes, end; otherwise, execute S460.

[0032] Optionally, the determining the sequence numbers of the idle modules and the calling modules in the inner ring where the charging module is located comprises:

[0033] sequencing the idle modules in the inner ring where the charging module is located according to the sequence numbers, and then sequencing the calling modules in the inner ring according to the sequence numbers.

[0034] Optionally, the determining the sequence numbers of the idle modules and the calling modules in the outer ring comprises:

[0035] S451, sequencing the idle modules in the inner ring according to the sequence numbers to obtain an idle module sequence number list of the inner ring;

[0036] S452, determining the ring numbers of the inner rings, and sequencing the idle module sequence number lists of the inner rings according to the ring numbers to obtain a first sequence number list;

[0037] S453, sequencing the calling modules in the inner ring according to the sequence numbers to obtain a calling module sequence number list of the inner ring;

[0038] S454, sequencing the calling module sequence number lists of the inner rings according to the ring numbers to obtain a second sequence number list;

[0039] S455, setting the first sequence number list before the second sequence number list and merging to obtain the sequence numbers of the idle modules and the calling modules in the outer ring.

[0040] In a second aspect, an embodiment of the present application provides a power distribution system applied to a charging stack, the system comprising:

[0041] at least one processor;

[0042] at least one memory for storing at least one program;

[0043] When the at least one program is executed by the at least one processor, the at least one processor implements the method in any one of the above aspects.

[0044] In a third aspect, an embodiment of the present application provides a computer readable storage medium, which stores a processor executable program, and the processor executable program is used for executing the method in any one of the above aspects when executed by a processor.

[0045] The present application has the following beneficial effects:

[0046] The application meets the requirement of full-flexible distribution of the charging pile power distribution unit by adopting the architecture of the combination of the inner ring and the outer ring with fewer contactors. In the case of meeting the full-flexible scheduling, the number of DC contactors can be reduced, the cost of the equipment is reduced, and the combination of different specifications of fast charging terminals and liquid cooling terminals is compatible. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0048] Figure 1 is a flowchart of the power distribution method applied to the charging pile in the embodiments of the present application;

[0049] Figure 2 is a connection block diagram between the inner rings of the charging pile in the embodiments of the present application;

[0050] Figure 3 is a connection block diagram of the charging modules in the inner rings of Figure 2 ;

[0051] Figure 4 is a control architecture diagram of the charging pile in the embodiments of the present application;

[0052] Figure 5 is a connection block diagram of the charging pile after cabinet connection in the embodiments of the present application;

[0053] Figure 6 is a structure diagram of the power distribution system applied to the charging pile in the embodiments of the present application. DETAILED DESCRIPTION

[0054] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and the drawings, so as to fully understand the purpose, scheme and effect of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0055] To solve the problems in the background art, the present application provides a power distribution method, system and medium applied to a charging pile, which can reduce the number of DC contactors, reduce the cost of the equipment, and is compatible with the combination of different specifications of fast charging terminals and liquid cooling terminals in the case of meeting the full-flexible scheduling.

[0056] Firstly, the technical terms related to the present application will be explained:

[0057] CCU (Charging Control Unit), responsible for communication and data interaction with the vehicle, ensuring safe and efficient charging process, real-time monitoring of charging status, adjusting output power, optimizing charging experience, and ensuring seamless connection between vehicle and charging terminal.

[0058] PCU (Power Control Unit), PCU is responsible for power distribution and scheduling of charging modules, ensuring stable operation of the overall system, efficient distribution of electric energy, improving charging efficiency, and ensuring safety and reliability of the charging process.

[0059] TCU (Telematics Control Unit); TCU is the abbreviation of Telematics Control Unit, which means remote information processing unit, and is an important part of electric vehicle Internet of Things. It is responsible for collecting vehicle sensor data, data processing and analysis, and transmitting data to the cloud platform through the communication network to realize remote vehicle diagnosis, fault alarm, remote control and other functions.

[0060] Referring to Figure 1 , Figure 2 and Figure 3 , the present application provides a power distribution method applied to a charging pile, the charging pile comprising a plurality of inner rings, the inner ring comprising a plurality of charging modules, a plurality of charging modules and a plurality of charging guns being connected one by one, any two charging modules in the inner ring being connected through a DC contactor, each inner ring having a charging module as an outer module, the outer modules in any two inner rings being connected through a DC contactor to form an outer ring.

[0061] The method comprises the following steps:

[0062] S100, obtaining the required power of the charging terminal and the charging gun connected to the charging terminal;

[0063] S200, determining the charging power of the charging terminal based on the charging gun connected to the charging terminal, and determining the type of the charging terminal if the charging power is lower than the required power, if the charging terminal is a fast charging terminal, executing S300; if the charging terminal is a liquid cooling terminal, executing S400;

[0064] S300, the idle modules in the inner ring where the charging module is located and the idle modules in the outer ring are sequentially gathered to the charging terminal; the idle module represents a charging module with an unused state;

[0065] S400, the idle modules and the calling modules in the inner ring where the charging module is located are gathered to the charging terminal in sequence, and then the idle modules and the calling modules in the outer ring are gathered to the charging terminal in sequence; the calling module represents a module in use which does not correspond to a charging gun, and the module in use represents a charging module in a use state.

[0066] Figure 2 a connection diagram between each inner ring of the charging stack, Figure 3 a connection diagram of the charging modules in the inner ring; Figure 3 The inner ring in the charging stack adopts a four-ring architecture, each inner ring is composed of 10 DC contactors and 5 charging modules with a power of 40kW / 60kW / 80kW, and each ring has four output paths. The four output paths are fast charging terminals or liquid cooling terminals. The outer ring adopts a star architecture and is composed of three inner rings. The outer ring is composed of six DC contactors, so as to achieve the purpose of flexibly scheduling each module. The total power of the charging stack can be expanded according to the power of the charging modules. M1-M15 represent the first charging module to the fifteenth charging module; 1st path-12th path represent the first port to the twelfth port; each port corresponds to a charging gun.

[0067] The charging stack control architecture is shown in Figure 4 The TCU is in the main cabinet, and the main functions are data storage, charging billing, and interaction with the cloud platform. The PCU is in the main cabinet, and the main functions are starting and stopping of the charging module and switching of the power module. The CCU is in the charging terminal. The charging terminal is divided into fast charging terminals (charging current is 300A, 400A) and liquid cooling terminals (charging current is 600A, 800A, 1000A). Each charging terminal is configured with a CCU, which can control a maximum of two guns. The fast charging terminal can be configured with a single gun or a double gun, but the liquid cooling terminal can only be configured with a single gun. The main functions of the charging terminal are interaction with vehicle data, electrical protection, insulation detection, charging power measurement, output control, etc. Different charging stacks communicate through the PCU, and multiple charging stacks can be implemented in a cabinet. The charging stack after cabinet combination is shown in Figure 5 .

[0068] Specifically, after the charging terminal requests charging, firstly, the demand power of the charging terminal and the corresponding charging module are acquired, the charging power of the charging terminal is determined based on the charging module corresponding to the charging terminal, if the determined charging power is lower than the demand power, then the idle modules in the inner ring where the charging module is located are successively gathered to the charging terminal, the charging power of the charging terminal is added to the power of the charging module gathered to the charging terminal, and the charging power of the charging terminal is updated; whether the charging power reaches the demand power is determined in real time, if the charging power reaches the demand power, then the process is ended; otherwise, the idle modules in the inner ring are continuously gathered to the charging terminal, the idle modules are successively gathered to the charging terminal, so that the charging power reaches the demand power; if all the idle modules in the inner ring are gathered to the charging terminal, and the charging power still does not reach the demand power, then the type of the charging terminal is determined, if the charging terminal is a fast charging terminal, then the idle modules in the outer ring are successively gathered to the charging terminal, so that the charging power reaches the demand power, in the gathering process, the charging power of the charging terminal is updated, and whether the charging power reaches the demand power is determined in real time, if the charging power reaches the demand power, then the process is ended; otherwise, the idle modules in the outer ring are continuously gathered to the charging terminal, until all the idle modules in the outer ring are gathered to the charging terminal.

[0069] If the charging terminal is a liquid cooling terminal, after the idle modules in the inner ring where the charging module is located are gathered to the charging terminal, then the calling modules in the inner ring where the charging module is located are gathered to the charging terminal, so that the charging power reaches the demand power; in the gathering process, the charging power of the charging terminal is updated, and whether the charging power reaches the demand power is determined in real time, if the charging power reaches the demand power, then the process is ended; otherwise, the idle modules and the calling modules in the outer ring are successively gathered to the charging terminal, so that the charging power reaches the demand power.

[0070] The application adopts the architecture combining the inner ring and the outer ring, and meets the demand of full-flexible distribution of the charging pile power distribution unit with fewer contactors. The number of DC contactors can be reduced to reduce the cost of equipment, and the collocation of different specifications of fast charging terminals and liquid cooling terminals is compatible.

[0071] In some embodiments, the charging power of the charging terminal is determined based on the charging gun connected by the charging terminal, comprising:

[0072] The charging power of the charging terminal is determined as the sum of the power of the charging module connected by the charging gun, the fast charging terminal is connected with one or two charging guns, and the liquid cooling terminal is connected with one charging gun.

[0073] Specifically, the charging terminal is divided into two types of fast charging terminal and liquid cooling terminal. The fast charging terminal can be connected with one or two charging guns, and the liquid cooling terminal is connected with one charging gun. If the charging terminal is connected with one charging gun, the power of the charging module corresponding to the charging gun is taken as the charging power of the charging terminal. If the charging terminal is connected with two charging guns, the sum of the powers of the charging modules corresponding to the two charging guns is taken as the charging power of the charging terminal, so as to determine the initial charging power of the charging terminal.

[0074] In some embodiments, the step of sequentially gathering the idle modules in the inner ring and the idle modules in the outer ring to the charging terminal includes:

[0075] S310, determining the serial numbers of the idle modules in the inner ring where the charging module is located;

[0076] S320, sequentially gathering the idle modules in the inner ring to the charging terminal according to the serial numbers;

[0077] S330, updating the charging power in real time in combination with the idle modules gathered to the charging terminal, and determining whether the charging power reaches the demand power. If yes, the process ends. If not, S340 is performed.

[0078] S340, determining whether the idle modules in the inner ring are all gathered to the charging terminal. If yes, S350 is performed. If not, S320 is performed.

[0079] S350, determining the serial numbers of the idle modules in the outer ring;

[0080] S360, sequentially gathering the idle modules in the outer ring to the charging terminal according to the serial numbers;

[0081] S370, updating the charging power in real time in combination with the idle modules gathered to the charging terminal, and determining whether the charging power reaches the demand power. If yes, the process ends. If not, S360 is performed.

[0082] Specifically, in the case that the charging power is lower than the demand power, new charging modules need to be gathered to improve the charging power of the charging terminal. First, the use states of the charging modules in the inner ring where the charging module is located are determined to screen out idle modules, and then the serial numbers of the idle modules are determined. The idle modules in the inner ring are sequentially gathered to the charging terminal according to the serial numbers, the charging power change is monitored in real time, the efficient cooperation of each charging module is ensured, the demand power is gradually approached, and the charging demand is met or the idle modules in the inner ring are all gathered to the charging terminal. If the charging demand cannot be met, the idle modules in the outer ring are further screened out, sequentially gathered according to the serial numbers, and the charging power is updated in real time until the demand power is reached or the idle modules in the outer ring are exhausted, so as to ensure the maximum charging efficiency.

[0083] In some embodiments, the charging power is updated in real time in combination with the idle modules gathered to the charging terminal, including:

[0084] The charging power of the charging terminal is added to the power of the charging modules gathered to the charging terminal, and the charging power of the charging terminal is updated.

[0085] Specifically, when the charging modules in the inner ring are gathered to the charging terminal, the power of each idle module in the inner ring is added one by one based on the charging power of the charging terminal, and the charging power of the charging terminal is dynamically adjusted. After reaching the preset required power, it is timely to end, avoiding over-calling charging modules. By precisely controlling the module gathering sequence and power accumulation, the charging process is ensured to be efficient and stable, meeting the actual charging demand.

[0086] In some embodiments, after the idle modules and the calling modules in the inner ring where the charging module is located are gathered to the charging terminal in turn, the idle modules and the calling modules in the outer ring are gathered to the charging terminal in turn, including:

[0087] S410, determining the sequence numbers of the idle modules and the calling modules in the inner ring where the charging module is located;

[0088] S420, gathering the idle modules and the calling modules in the inner ring to the charging terminal in turn according to the sequence numbers;

[0089] S430, updating the charging power in real time in combination with the idle modules and the calling modules gathered to the charging terminal, and determining whether the charging power reaches the required power; if yes, ending; otherwise, performing S440;

[0090] S440, determining whether the idle modules and the calling modules in the inner ring are all gathered to the charging terminal; if yes, performing S450; otherwise, performing S420;

[0091] S450, determining the sequence numbers of the idle modules and the calling modules in the remaining inner ring, and sorting the idle modules in the outer ring according to the sequence numbers, and then sorting the calling modules in the outer ring according to the sequence numbers;

[0092] S460, gathering the idle modules and the calling modules in the outer ring to the charging terminal in turn according to the sequence numbers;

[0093] S470, updating the charging power in real time in combination with the idle modules and the calling modules gathered to the charging terminal, and determining whether the charging power reaches the required power; if yes, ending; otherwise, performing S460.

[0094] Specifically, for liquid-cooled terminals, first, the idle modules and the calling modules in the inner ring are gathered to the charging terminal in sequence according to the serial numbers; if the idle modules and the calling modules in the inner ring are all scheduled, and the demand power still cannot be met, then the idle modules and the calling modules in the outer ring are gathered to the charging terminal in sequence according to the serial numbers, the charging power is updated in real time, until the demand power is met or the idle modules and the calling modules in the outer ring are also exhausted, so as to maximize the charging efficiency and avoid resource waste.

[0095] In some embodiments, the determination of the serial numbers of the idle modules and the calling modules in the inner ring where the charging module is located comprises:

[0096] After the idle modules in the inner ring where the charging module is located are sorted according to the serial numbers, the calling modules in the inner ring are sorted according to the serial numbers.

[0097] Specifically, first, the idle modules in the inner ring where the charging module is located are sorted according to the serial numbers, and then the calling modules are sorted according to the serial numbers. In subsequent calling, the idle modules in the inner ring are called in sequence according to the serial numbers, and then the calling modules in the inner ring are gathered to the charging terminal in sequence according to the serial numbers, so as to ensure reasonable power distribution, avoid module overload, and optimize charging efficiency.

[0098] In some embodiments, the determination of the serial numbers of the idle modules and the calling modules in the outer ring comprises:

[0099] S451, the idle modules in the inner ring are sorted according to the serial numbers to obtain an idle module serial number list of the inner ring;

[0100] S452, the ring number of each inner ring is determined, and after the idle module serial number list of each inner ring is sorted according to the ring number, a first serial number list is obtained;

[0101] S453, the calling modules in the inner ring are sorted according to the serial numbers to obtain a calling module serial number list of the inner ring;

[0102] S454, after the calling module serial number list of each inner ring is sorted according to the ring number, a second serial number list is obtained;

[0103] S455, the first serial number list is set before the second serial number list and is merged to obtain the serial numbers of the idle modules and the calling modules in the outer ring.

[0104] Specifically, first, the specific position of the charging module in the inner ring is determined, each idle module in the inner ring is sorted according to the serial number, and then the idle module serial number list is sorted according to the ring number of each inner ring to obtain a first serial number list; then, each calling module in the inner ring is sorted according to the serial number to obtain a calling module serial number list, and then sorted according to the ring number to obtain a second serial number list; finally, the first serial number list and the second serial number list are combined to form the final module calling sequence, so that the idle modules of each inner ring are first collected in sequence, the interference with other charging terminals being charged is avoided as much as possible, and resource conflicts are reduced; after the idle modules of each inner ring are called, if the power demand cannot still be met, the calling modules are sequentially collected, the charging modules are maximized, and the charging demand of the liquid-cooled terminal is preferentially met.

[0105] In the embodiments provided by the application, the allocation method of the charging module is as follows:

[0106] As shown in Figure 2 and Figure 3 , the power of the charging module in the application can be 40kW, 60kW, 80kW, and the number is 15, and the total power of the main cabinet corresponds to 800kW, 1.2MW, 1.6MW. Every five charging modules form an inner ring, and the switching between the five charging modules in the inner ring adopts a star architecture, and the power switching is performed through a direct current contactor. Each inner ring can output a maximum of 4 paths, that is, 4 charging guns are configured, and each charging gun can dispatch any charging module in the inner ring. One ring (1p) corresponds to No. 1 charging module to No. 5 charging module, and contains ports 1~port 4; two rings (2p) correspond to No. 6 charging module to No. 10 charging module, and contain ports 5~port 8; three rings (3p) correspond to No. 11 charging module to No. 15 charging module, and contain ports 9~port 12; one ring, two rings and three rings are called inner rings, and the three inner rings form an outer ring, and the inner rings can be dispatched arbitrarily.

[0107] The scheduling sequence of the charging module of the fast-charging terminal is as follows:

[0108] The charging module corresponding to each charging gun has the highest priority, for example, No. 1 charging module corresponds to port 1, and No. 1 charging module has the highest calling priority for port 1; No. 12 charging module corresponds to port 10, and No. 12 charging module has the highest calling priority for port 10;

[0109] First, the charging modules in the ring are dispatched: taking port 2 as an example, after the 2 charging module corresponding to port 2 is dispatched, if the power cannot meet the demand power of the charging terminal in the vehicle, the idle modules are polled in sequence from No. 1 charging module, No. 3 charging module, No. 4 charging module and No. 5 charging module.

[0110] Scheduling the charging modules of the outer ring again: taking port 15 as an example, if the charging power of port 15 cannot meet the demand after scheduling the idle modules of the third ring, the idle modules of the first ring and the second ring are polled in sequence, and the idle modules are scheduled, until the demand power is met or all the idle modules in the first ring and the second ring are scheduled.

[0111] The scheduling order of the charging modules of the liquid-cooled terminal is as follows:

[0112] Similarly, the charging module corresponding to each charging gun has the highest priority, for example, the No. 1 charging module corresponds to port 1, and the No. 1 charging module has the highest calling priority for port 1; the No. 12 charging module corresponds to port 10, and the No. 12 charging module has the highest calling priority for port 10.

[0113] First, the charging modules in the ring are scheduled: taking port 2 as an example, if the charging power cannot meet the demand power after scheduling the corresponding No. 2 charging module of port 2, the No. 1 charging module, the No. 3 charging module, the No. 4 charging module and the No. 5 charging module are polled in sequence, and the idle modules are scheduled. If port 2 is a liquid-cooled terminal, all the idle modules in the ring and the calling modules in the ring can be forcibly scheduled to be used by the liquid-cooled terminal. After scheduling all the idle modules in the ring to port 2, if the charging power still cannot meet the demand power, the calling modules in the ring are forcibly scheduled to port 2, until the demand power is met or all the idle modules and the calling modules in the ring are scheduled.

[0114] Scheduling the charging modules of the outer ring again: taking port 15 as an example, if the charging power of port 15 cannot meet the demand after scheduling the idle modules of the third ring, the idle modules of the first ring and the second ring are polled in sequence, and the idle modules are scheduled, until the demand power is met or all the idle modules in the first ring and the second ring are scheduled. For the liquid-cooled terminal, all the idle modules and the calling modules in the first ring and the second ring are forcibly scheduled to be used by the liquid-cooled terminal.

[0115] Corresponding to the method of Figure 1 , with reference to Figure 6 , the embodiment of the application provides a power distribution system applied to a charging pile, which comprises:

[0116] at least one processor;

[0117] at least one memory for storing at least one program;

[0118] When the at least one program is executed by the at least one processor, the at least one processor implements the above method.

[0119] It can be seen that the content in the method embodiments is applicable to the system embodiments, the system embodiments specifically implement the same functions as the method embodiments, and achieve the same beneficial effects as the method embodiments.

[0120] In addition, the embodiments of the present application further disclose a computer program product or a computer program, which is stored in a computer readable storage medium. A processor of a computer device can read the computer program from the computer readable storage medium, and the processor executes the computer program, so that the computer device executes the method described above. Similarly, the content in the method embodiments is applicable to the storage medium embodiments, the storage medium embodiments specifically implement the same functions as the method embodiments, and achieve the same beneficial effects as the method embodiments.

[0121] Those skilled in the art can understand that all or some of the methods disclosed above and the system can be implemented as software, firmware, hardware and appropriate combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on a computer readable medium, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. In addition, it is known to those skilled in the art that communication media generally includes computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery medium.

[0122] The above is a specific description of the preferred embodiments of the present disclosure, but the present disclosure is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present disclosure, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present disclosure.

Claims

1. A power distribution method applied to a charging pile, characterized in that, The charging pile includes multiple inner rings, each inner ring including multiple charging modules. The multiple charging modules and multiple charging guns are connected one-to-one. Any two charging modules in the inner ring are connected through a DC contactor. Each inner ring has a charging module as an external module. Any two external modules in the inner ring are connected through a DC contactor to form an outer ring. The method includes the following steps: S100, obtain the power requirement of the charging terminal and the charging gun connected to the charging terminal; S200: Determine the charging power of the charging terminal based on the charging gun connected to the charging terminal. If the charging power is lower than the required power, determine the type of the charging terminal. If the charging terminal is a fast charging terminal, then execute S300; if the charging terminal is a liquid cooling terminal, then execute S400. S300, the idle modules in the inner ring and the idle modules in the outer ring where the charging module is located are sequentially gathered to the charging terminal; the idle modules represent charging modules whose usage status is unused; S400, after the idle modules and calling modules in the inner ring where the charging module is located are sequentially gathered to the charging terminal, the idle modules and calling modules in the outer ring are sequentially gathered to the charging terminal; the calling module represents the in-use module that does not correspond to the charging gun, and the in-use module represents the charging module whose usage status is in use; The step of sequentially aggregating the idle modules in the inner ring and the outer ring of the charging module to the charging terminal includes: S310, determine the sequence number of each idle module in the inner ring where the charging module is located; S320, sequentially gathers the idle modules in the inner ring to the charging terminal according to their serial numbers; S330: Combine the real-time updates of the charging power from the idle modules collected at the charging terminal, and determine whether the charging power has reached the required power; if yes, then end; otherwise, execute S340. S340: Determine whether all the idle modules in the inner ring have been gathered at the charging terminal. If yes, proceed to S350; otherwise, proceed to S320. S350, determine the sequence number of the idle module in the outer ring; S360, in sequence, gathers the idle modules in the outer ring to the charging terminal; S370: Combine the real-time updates of the charging power from the idle modules collected at the charging terminal to determine whether the charging power has reached the required power; if yes, then end; otherwise, execute S360.

2. The method according to claim 1, characterized in that, The determination of the charging power of the charging terminal based on the charging gun connected to the charging terminal includes: The charging gun connected to the charging terminal is determined, and the sum of the power of the charging modules connected to the corresponding charging gun is taken as the charging power of the charging terminal; the fast charging terminal is connected to one or two charging guns, and the liquid cooling terminal is connected to one charging gun.

3. The method according to claim 1, characterized in that, The method of combining idle modules collected at the charging terminal to update the charging power in real time includes: The charging power of the charging terminal is updated by adding the power of the charging module that is aggregated to the charging terminal.

4. The method according to claim 1, characterized in that, The step of sequentially aggregating the idle modules and calling modules in the inner ring where the charging module is located to the charging terminal, and then sequentially aggregating the idle modules and calling modules in the outer ring to the charging terminal, includes: S410, determine the sequence number of each idle module and the calling module in the inner ring where the charging module is located; S420, in sequence, gathers the idle modules and calling modules in the inner ring to the charging terminal; S430: Combine the idle modules and calling modules gathered at the charging terminal to update the charging power in real time, and determine whether the charging power has reached the required power; if yes, then end; otherwise, execute S440. S440: Determine whether all idle modules and calling modules in the inner loop have been gathered at the charging terminal. If yes, execute S450; otherwise, execute S420. S450, determine the sequence number of each idle module and calling module in the remaining inner ring, sort the idle modules in the outer ring by sequence number, and then sort the calling modules in the outer ring by sequence number. S460, in sequence, gathers the idle modules and calling modules in the outer ring to the charging terminal; S470: Combine the idle modules and calling modules gathered at the charging terminal to update the charging power in real time, and determine whether the charging power has reached the required power; if yes, then end; otherwise, execute S460.

5. The method according to claim 4, characterized in that, Determining the sequence numbers of each idle module and the calling module within the inner ring where the charging module is located includes: After sorting the idle modules in the inner ring where the charging module is located by their serial numbers, sort the calling modules in the inner ring by their serial numbers.

6. The method according to claim 4, characterized in that, Determining the sequence number of each idle module and calling module in the outer ring includes: S451, Sort the idle modules in the inner ring by their serial numbers to obtain a list of idle module serial numbers in the inner ring; S452, determine the ring number of each inner ring, sort the list of idle module numbers of each inner ring by ring number, and obtain the first sequence number list; S453, sort the calling modules in the inner loop by their serial numbers to obtain the calling module serial number list of the inner loop; S454, after sorting the list of calling module numbers of each inner ring by ring number, we get the second list of numbers; S455, set the first sequence number list before the second sequence number list and merge them to obtain the sequence numbers of each idle module and calling module in the outer ring.

7. A power distribution system for use in a charging pile, characterized in that, The system includes: At least one processor; At least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor performs the method as described in any one of claims 1 to 6.

8. A computer-readable storage medium storing a processor-executable program, characterized in that, The processor-executable program, when executed by the processor, is used to perform the method as described in any one of claims 1 to 6.

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