Charging pile power distribution method and device, equipment and readable storage medium

Abstract

This application discloses a power allocation method, apparatus, device, and readable storage medium for charging piles. The method includes the steps of: acquiring the power requirement of the charging interface; determining the charging modules to be used in a preset charging module layer based on the power requirement and a preset charging module power; wherein the preset charging module layer includes at least two layers arranged in vertical order, each consisting of the same number of charging modules as the total number of charging interfaces, with each charging module in each layer connected in parallel via a power switch; except for the topmost layer directly connected to the positive and negative terminals of the charging interface, all other layer modules are connected to the positive and negative terminals of the charging interface via power switches; wherein the output power of each charging module is the same and equal to the preset charging module power; and controlling the power switch corresponding to the charging module to close so that the output of the charging interface meets the power requirement. This application achieves the effect of reducing the number of power switches.

Description

Technical Field

[0001] This application relates to the field of charging pile technology, and in particular to a charging pile power distribution method, device, equipment and readable storage medium. Background Technology

[0002] In recent years, the number of new energy electric vehicles has exploded, and the number of DC charging piles, which serve as their infrastructure, has also increased dramatically.

[0003] To ensure the effective utilization of DC charging piles, high-power DC charging piles with multiple charging interfaces have become the preferred solution for most operators. The mainstream products of this type adopt a matrix power distribution scheme, which requires a huge number of power switches, resulting in a waste of resources and increasing the construction cost of charging piles. Summary of the Invention

[0004] In view of this, this application provides a charging pile power allocation method, apparatus, device and readable storage medium, aiming to ensure that the power allocation of the charging pile meets the vehicle charging needs while reducing the cost of the charging pile.

[0005] To achieve the above objectives, this application provides a charging pile power allocation method, which includes the following steps:

[0006] Obtain the power requirements of the charging interface;

[0007] Based on the power requirements and the preset charging module power, determine the charging modules to be used in the preset charging module layer;

[0008] The preset charging module layer includes at least two layers arranged in a vertical order, each consisting of the same number of charging modules as the total number of charging interfaces. Each charging module in each module layer is connected in parallel via a power switch. Except for the topmost module layer which is directly connected to the positive and negative terminals of the charging interface, all other module layers are connected to the positive and negative terminals of the charging interface via power switches. The output power of each charging module is the same and equal to the preset charging module power.

[0009] The power switch corresponding to the charging module is closed so that the charging interface can output power that meets the power requirements.

[0010] For example, the step of determining the charging module to be used in the preset charging module layer based on the power requirement and the preset charging module power includes:

[0011] Based on the power requirements and the preset charging module power, calculate the required number of charging modules;

[0012] The required number of charging modules are determined from each module layer of the preset charging module layer, and these are used as the charging modules to be used.

[0013] For example, the step of determining the required number of charging modules from each module layer of the preset charging module layer includes:

[0014] Determine the top and bottom layers of each module layer in the preset charging module layer;

[0015] According to the preset selection order, the corresponding charging modules are selected sequentially from the bottom layer to the top layer until the number of selected charging modules equals the required number.

[0016] For example, the step of determining the required number of charging modules from each module layer of the preset charging module layer and using them as the charging modules to be used includes:

[0017] When the required quantity is not greater than the preset number of layers in each module layer of the charging module layer, the charging modules in each module layer that are directly connected to the positive and negative terminals of the charging interface and / or connected through a power switch are selected as the charging modules to be used, based on the required quantity.

[0018] For example, the charging modules to be used include a first charging module and a second charging module. The step of determining the required number of charging modules from each module layer of the preset charging module layer and using them as the charging modules to be used includes:

[0019] When the required quantity is greater than the preset number of layers in each module layer, the first charging module in each module layer that is directly connected to the positive and negative terminals of the charging interface and connected through a power switch is selected.

[0020] Select a second charging module that is connected in parallel with the first charging module via a power switch;

[0021] Wherein, the number of the first charging modules is the number of layers in each module layer, and the number of the second charging modules is the difference between the required quantity and the number of layers.

[0022] For example, the step of selecting a second charging module connected in parallel with the first charging module via a power switch includes:

[0023] Starting from the bottom layer and moving up to the top layer, select second charging modules that are connected in parallel with the first charging module via a power switch, until the number of second charging modules meets the difference between the required number and the number of layers.

[0024] For example, the method further includes:

[0025] After detecting that the charging interface has stopped being used, the charging modules corresponding to the charging interface are released sequentially from the top to the bottom of the preset charging module layer.

[0026] For example, to achieve the above objectives, this application also provides a charging pile power distribution device, the device comprising:

[0027] The acquisition module is used to acquire the power requirements of the charging interface;

[0028] A determining module is used to determine the charging modules to be used in a preset charging module layer based on the power requirements and the preset charging module power. The preset charging module layer comprises at least two layers arranged in vertical order, each consisting of the same number of charging modules as the total number of charging interfaces. Each charging module within each layer is connected in parallel via a power switch. Except for the topmost layer, which is directly connected to the positive and negative terminals of the charging interface, all other layer layers are connected to the positive and negative terminals of the charging interface via power switches. The output power of each charging module is the same and equal to the preset charging module power.

[0029] The control module is used to control the closing of the power switch corresponding to the charging module so that the charging interface outputs power that meets the power requirements.

[0030] For example, to achieve the above objectives, this application also provides a charging pile power allocation device, the device comprising: a memory, a processor, and a charging pile power allocation program stored in the memory and executable on the processor, the charging pile power allocation program being configured to implement the steps of the charging pile power allocation method as described above.

[0031] For example, to achieve the above objectives, this application also provides a computer-readable storage medium storing a charging pile power allocation program, which, when executed by a processor, implements the steps of the charging pile power allocation method as described above.

[0032] In related technologies, to ensure the effective utilization rate of DC charging piles, high-power DC charging piles with multiple charging interfaces have become the preferred solution for most operators. These mainstream products employ a matrix power distribution scheme, which requires a large number of power switches, resulting in resource waste and increasing the construction cost of charging piles. In contrast, this application obtains the power requirements of the charging interfaces; based on the power requirements and the preset charging module power, it determines the charging modules to be used in a preset charging module layer; wherein the preset charging module layer includes at least two layers arranged in vertical order, each consisting of the same number of charging modules as the total number of charging interfaces. Each charging module within each module layer is connected in parallel via a power switch. Except for the topmost module layer directly connected to the positive and negative terminals of the charging interfaces, all other module layers are connected to the positive and negative terminals of the charging interfaces via power switches. The output power of each charging module is the same and equal to the preset charging module power; the power switch corresponding to each charging module is controlled to close, so that the charging interface outputs power that meets the power requirements. In this application, the arrangement of the charging modules in the charging pile is changed to a multi-layer structure, and the number of charging modules in each layer is consistent with the number of charging interfaces. At the same time, each charging module in each layer is connected in parallel by power, which ensures that the output power of the charging modules can be freely adjusted by power switches, and also reduces the cost of setting up the charging pile. Attached Figure Description

[0033] Figure 1 This is a flowchart illustrating the first embodiment of the charging pile power allocation method of this application;

[0034] Figure 2 This is a circuit diagram of the multi-charging-interface DC charging pile of this application;

[0035] Figure 3 This is a schematic diagram of the stacked circuit topology structure of this application;

[0036] Figure 4 This is a flowchart illustrating the second embodiment of the charging pile power allocation method of this application;

[0037] Figure 5 This is a schematic diagram of the hardware operating environment involved in the embodiments of this application.

[0038] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0040] This application provides a power allocation method for charging piles, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the charging pile power allocation method of this application.

[0041] This application provides an embodiment of a charging pile power allocation method. It should be noted that although the logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order. For ease of description, the following description of the execution entity and the various steps of the charging pile power allocation method are omitted. The charging pile power allocation method includes:

[0042] Step S110: Obtain the power requirement of the charging interface;

[0043] With the increasing popularity of new energy vehicles, the application of charging piles, which serve as the infrastructure for new energy vehicles, is also being promoted. Currently, high-power DC charging piles with multiple charging interfaces have become the preferred solution for most operators. However, due to the excessive number of power switches used in this solution, resources are wasted, and the construction cost of charging piles is increased.

[0044] Reference Figure 2 , Figure 2 A circuit diagram of a DC charging station with multiple charging interfaces.

[0045] according to Figure 2 It is known that existing charging piles with multiple charging interfaces are equipped with multiple charging interfaces and multiple charging modules, which are set as m and n respectively.

[0046] Each intersection of the horizontal and vertical lines represents a switching device (i.e., a power switch), and each charging module needs to be connected to both the positive and negative terminals when connected to the charging interface. Therefore, when the number of charging modules is n and the number of charging interfaces is m, the required number of power switches is 2*n*m.

[0047] In this application, the circuit and power distribution method used in this situation are improved to reduce the construction cost of the charging pile while ensuring that the charging pile can properly distribute the output power.

[0048] For example, a charging station may be equipped with multiple charging ports. The following explanation will be based on the example of a charging station having n charging ports.

[0049] For example, when obtaining the power requirement of the charging interface, it is first determined which specific charging interface has the requirement, such as interface 1 or interface 2 out of 1-n charging interfaces, or the simultaneous use of interface 1 and interface 2, etc.

[0050] The power requirement is usually determined by the specific battery that is connected to the charging interface.

[0051] Step S120: Based on the power requirement and the preset charging module power, determine the charging modules to be used in the preset charging module layer; wherein, the preset charging module layer includes at least two layers arranged in vertical order, each consisting of the same number of charging modules as the total number of charging interfaces, and each charging module in each module layer is connected in parallel through a power switch. Except for the topmost module layer which is directly connected to the positive and negative terminals of the charging interface, all other module layers are connected to the positive and negative terminals of the charging interface through a power switch. The output power of each charging module is the same and equal to the preset charging module power.

[0052] The preset charging module power is the hardware attribute of the charging module itself. When setting up the same charging pile, multiple charging modules with identical hardware attributes can be installed. That is, the output power of each charging module is limited to the same value. The output power is the preset charging module power, which can be determined according to the actual situation.

[0053] Based on the power requirements and the preset charging module power, the charging modules to be used in the preset charging module layer can be determined. In determining the charging modules to be used, the position of the charging modules in the preset charging module layer and the number of charging modules to be used are also determined.

[0054] The preset charging module layer includes at least two layers arranged vertically, each consisting of the same number of charging modules with the same total number of charging interfaces. That is, the charging module layer can have 3 or 4 layers, or more than 2 layers. Furthermore, each module layer is arranged vertically; for example, 3 module layers can be set from top to bottom. This structure can be referenced... Figure 3 The structure of the stacked circuit topology diagram is as follows: charging modules 1-n are the first layer, charging modules (n+1)-2n are the second layer, and charging modules (2n+1)-3n are the third layer. Each layer corresponds to the same number of charging interfaces, that is, each layer has n charging modules.

[0055] In this configuration, all charging modules within each module layer are connected in parallel via power switches. Except for the topmost module layer (first layer), which is directly connected to the positive and negative terminals of the charging interface, all other module layers are connected to the positive and negative terminals of the charging interface via power switches. That is, each layer of charging modules is connected in parallel via n*(n-1) power switches. At the same time, all charging modules except the first layer are connected to the positive and negative terminals of the charging interface via power switches, for a total of 2n power switches.

[0056] In summary, compared to the traditional circuits that use 2*n*m power switches, taking the number of charging modules as twice the number of charging interfaces as an example, the number of switches required by the mainstream power distribution module solution is: 2*(2m)*m=4m2; the number of switches required by this solution (if there are 2 module layers) is: 2*(m*(m-1))+2m=2m2; the number of switches is reduced to 50% compared to the mainstream solution.

[0057] For example, the step of determining the charging module to be used in the preset charging module layer based on the power requirement and the preset charging module power includes:

[0058] Step a: Calculate the required number of charging modules based on the power requirements and the preset charging module power;

[0059] Step b: Determine the required number of charging modules from each module layer of the preset charging module layer, and use them as the charging modules to be used.

[0060] Based on the power requirements and the preset power of the charging modules, the required number of charging modules can be calculated. For example, the power requirement is the total output power required when the charging interface charges the vehicle. This can be achieved by stacking multiple charging modules to ensure that the total output power meets the output requirements.

[0061] Based on the required quantity, the required number of charging modules can be determined from each module layer of the preset charging module layer and used as the charging modules to be used.

[0062] This demand can be calculated by dividing the power demand by the preset charging module power.

[0063] The determination process not only determines the required number of charging modules, but also the location of the charging modules, for example, by selecting charging modules from different module layers.

[0064] Step S130: Control the power switch corresponding to the charging module to close, so that the charging interface outputs power that meets the power requirements.

[0065] Once the charging module is determined, except for the topmost layer in the module layer which is directly connected to the charging interface (i.e., directly connected without using a power switch), all other layers need to be controlled by the power switch to enable the charging module to output power.

[0066] Specifically, when the power switch is closed, the power switch at the corresponding position will be controlled. For example, the charging module directly connected to the charging interface does not need to control the power switch, while the charging module connected in series with the charging interface via the power switch needs to control the switch on the corresponding series circuit. Similarly, the switch on the corresponding parallel circuit is controlled in the same way.

[0067] For example, refer to Figure 3 ,exist Figure 3 When the charging interface 1 is used, the third-layer charging module (2n+1) and the charging module (2n+2) can be used simultaneously. The charging module (2n+1) controls the output power through a power switch on a series circuit, and the charging module (2n+2) controls the output power through a power switch on a parallel circuit between the two charging modules.

[0068] In related technologies, to ensure the effective utilization rate of DC charging piles, high-power DC charging piles with multiple charging interfaces have become the preferred solution for most operators. These mainstream products employ a matrix power distribution scheme, which requires a large number of power switches, resulting in resource waste and increasing the construction cost of charging piles. In contrast, this application obtains the power requirements of the charging interfaces; based on the power requirements and the preset charging module power, it determines the charging modules to be used in a preset charging module layer; wherein the preset charging module layer includes at least two layers arranged in vertical order, each consisting of the same number of charging modules as the total number of charging interfaces. Each charging module within each module layer is connected in parallel via a power switch. Except for the topmost module layer directly connected to the positive and negative terminals of the charging interfaces, all other module layers are connected to the positive and negative terminals of the charging interfaces via power switches. The output power of each charging module is the same and equal to the preset charging module power; the power switch corresponding to each charging module is controlled to close, so that the charging interface outputs power that meets the power requirements. In this application, the arrangement of the charging modules in the charging pile is changed to a multi-layer structure, and the number of charging modules in each layer is consistent with the number of charging interfaces. At the same time, each charging module in each layer is connected in parallel by power, which ensures that the output power of the charging modules can be freely adjusted by power switches, and also reduces the cost of setting up the charging pile.

[0069] For example, refer to Figure 2 , Figure 2 This is a flowchart illustrating the second embodiment of the charging pile power allocation method of this application. Based on the first embodiment of the charging pile power allocation method of this application described above, a second embodiment is proposed, wherein the method further includes:

[0070] Step S210: Determine the top and bottom layers of each module layer in the preset charging module layer;

[0071] The preset charging module layers are arranged according to... Figure 3 The modules are arranged in a vertical order, thus the top and bottom layers can be determined. The layout varies depending on the position of the module layers. For example, the top module layer is directly connected to the charging interface (this connection process involves connecting to the positive and negative terminals of the charging interface, and will not be elaborated further; all details are expressed in a simplified manner).

[0072] Step S220: According to the preset selection order, select the corresponding charging modules sequentially from the bottom layer to the top layer until the number of selected charging modules equals the required number.

[0073] According to the preset selection order, the corresponding charging modules are selected sequentially from the bottom to the top, until the number of selected charging modules equals the required number.

[0074] In other words, a preset selection order is required when selecting charging modules. This preset selection order is from the bottom layer to the top layer, as shown in the reference. Figure 3 The system uses a hierarchical structure, and the charging module is selected starting from the third layer from the bottom, continuing until the top layer is selected.

[0075] For example, the step of determining the required number of charging modules from each module layer of the preset charging module layer and using them as the charging modules to be used includes:

[0076] Step c: When the required quantity is not greater than the preset number of layers in each module layer of the charging module layer, the charging modules in each module layer that are directly connected to the positive and negative terminals of the charging interface and / or connected through a power switch are selected as the charging modules to be used, based on the required quantity.

[0077] When the required quantity is no greater than the preset number of layers in each module layer, the charging modules that are directly connected to the positive and negative terminals of the charging interface and / or connected through a power switch in each module layer can be used as the charging modules to be used, based on the required quantity.

[0078] For example, refer to Figure 3If the calculated demand quantity is 2 or 3, the corresponding charging module can be directly selected from each module layer. When the charging interface is charging interface 1, the corresponding charging modules in each layer are: charging module 1, charging module (n+1) and charging module (2n+1). When the demand quantity is 3, these three charging modules are directly used as the charging modules to be used. When the demand quantity is 2, charging module (n+1) and charging module (2n+1) are used as the charging modules to be used.

[0079] That is, the number of charging modules and the number of charging interfaces are the same in each layer. There is a one-to-one correspondence between a charging module and a charging interface in each layer. When the required quantity is less than the number of layers, the charging module with the one-to-one correspondence is directly retrieved.

[0080] For example, the charging modules to be used include a first charging module and a second charging module. The step of determining the required number of charging modules from each module layer of the preset charging module layer and using them as the charging modules to be used includes:

[0081] Step d: When the required quantity is greater than the preset number of layers in each module layer, select the first charging module in each module layer that is directly connected to the positive and negative terminals of the charging interface and connected through a power switch;

[0082] When the required quantity exceeds the preset number of layers in each module layer, it is necessary not only to retrieve the charging modules that have a one-to-one correspondence with the charging interface, but also to retrieve some charging modules that are connected in parallel from each module layer.

[0083] For example, there is a parallel relationship between the charging modules in each module layer. For instance, the charging module 1 and charging module 3 in the top layer can be connected in parallel by closing the power switch.

[0084] The first charging module refers to the charging module that has a one-to-one correspondence with the charging interface.

[0085] The second charging module refers to the charging modules connected in parallel through a power switch in the same module layer (e.g., charging module 1 and charging module 3, where charging module 1 is the first charging module and charging module 3 is the second charging module).

[0086] Step e: Select a second charging module connected in parallel with the first charging module via a power switch; wherein, the number of the first charging modules is the number of layers in each module layer, and the number of the second charging modules is the difference between the required quantity and the number of layers.

[0087] After selecting the first charging module, the next step is to select a second charging module that is connected in parallel with the first charging module via a power switch.

[0088] The first charging module is a charging module that corresponds one-to-one with the charging interface. Therefore, the number of module layers is the number of the first charging modules.

[0089] Therefore, the number of second charging modules is the difference between the required number and the number of layers.

[0090] For example, the step of selecting a second charging module connected in parallel with the first charging module via a power switch includes:

[0091] Step f: Select second charging modules connected in parallel with the first charging module through a power switch, layer by layer from the bottom layer to the top layer, until the number of second charging modules meets the difference between the required number and the number of layers.

[0092] When selecting the second charging module, the same method is adopted: selecting from the bottom layer to the top layer. For example, only when all the charging modules in the bottom layer are selected as the second charging module will the charging module in the layer above the bottom layer be selected as the second charging module. Instead of arbitrarily selecting a module layer and then selecting the second charging module from it, the selection continues until the number of second charging modules meets the difference between the required number and the number of layers.

[0093] For example, refer to Figure 3 When charging interface 1 is in use, four charging modules are required. At this time, charging module 1, charging module (n+1), and charging module (2n+1) are selected as the first charging modules in order from bottom to top. Then, any non-charging module (2n+1) is selected from the bottom layer as the second charging module. If any charging module in the second layer that is connected in parallel with charging module (n+1) is selected (taking charging module (n+2) as an example), since charging module (n+2) is connected to the charging interface through a power switch, if charging interface 1 is used at the same time as charging interface 2, the power switch will be closed, causing charging module (n+2) to supply power to both charging interface 1 and charging interface 2 at the same time. This results in the output power being additionally diverted, which cannot meet the power requirements of the charging interface. Selecting the second charging module layer by layer from bottom to top will not cause the above phenomenon.

[0094] For example, the method further includes:

[0095] Step g: After detecting that the charging interface has stopped being used, release the charging modules corresponding to the charging interface in sequence from the top to the bottom of the preset charging module layer.

[0096] Once the charging interface is detected as no longer in use, the output connection of the charging module needs to be disconnected, that is, the charging module needs to be released.

[0097] During the release process, the release order must also be limited. That is, the order is the opposite of the preset selection order. The charging modules corresponding to the charging interfaces are released sequentially from the top to the bottom of the preset charging module layer to avoid affecting the circuit of the module layer during the release of the charging modules.

[0098] In this embodiment, the order in which the charging modules are selected is limited. The appropriate charging modules are selected layer by layer from the bottom layer to the top layer, and the number of charging modules is the same as the required number. This ensures that the charging module layer is retrieved normally. At the same time, after charging is completed, the charging modules are released in the opposite direction to ensure the normal operation of the circuit.

[0099] In addition, this application also provides a charging pile power distribution device, which includes:

[0100] The acquisition module is used to acquire the power requirements of the charging interface;

[0101] A determining module is used to determine the charging modules to be used in a preset charging module layer based on the power requirements and the preset charging module power. The preset charging module layer comprises at least two layers arranged in vertical order, each consisting of the same number of charging modules as the total number of charging interfaces. Each charging module within each layer is connected in parallel via a power switch. Except for the topmost layer, which is directly connected to the positive and negative terminals of the charging interface, all other layer layers are connected to the positive and negative terminals of the charging interface via power switches. The output power of each charging module is the same and equal to the preset charging module power.

[0102] The control module is used to control the closing of the power switch corresponding to the charging module so that the charging interface can output power that meets the power requirements;

[0103] The release module is used to release the charging modules corresponding to the charging interfaces sequentially from the top to the bottom of the preset charging module layer after detecting that the charging interface has been discontinued.

[0104] For example, the determining module includes:

[0105] The calculation submodule is used to calculate the required number of charging modules based on the power requirements and the preset charging module power.

[0106] A determination submodule is used to determine the required number of charging modules from each module layer of the preset charging module layer, and to use them as the charging modules to be used.

[0107] For example, the determining submodule includes:

[0108] The determining unit is used to determine the top and bottom layers of each module layer in the preset charging module layer;

[0109] The first selection unit is used to select corresponding charging modules sequentially from the bottom layer to the top layer according to a preset selection order, until the number of selected charging modules equals the required number.

[0110] For example, the determining submodule further includes:

[0111] The second selection unit is used to select, according to the required quantity, the charging modules in each module layer that are directly connected to the positive and negative terminals of the charging interface and / or connected through a power switch as the charging modules to be used when the required quantity is not greater than the preset number of layers in each module layer.

[0112] The third selection unit is used to select the first charging module in each module layer that is directly connected to the positive and negative terminals of the charging interface and connected through a power switch when the required quantity is greater than the preset number of layers of each module layer.

[0113] The fourth selection unit is used to select a second charging module that is connected in parallel with the first charging module via a power switch; wherein the number of the first charging modules is the number of layers of each module layer, and the number of the second charging modules is the difference between the required number and the number of layers.

[0114] For example, the fourth selection unit includes:

[0115] A sub-unit is selected to sequentially select a second charging module connected in parallel with the first charging module via a power switch, from the bottom layer to the top layer, until the number of the second charging modules meets the difference between the required number and the number of layers.

[0116] The specific implementation method of the charging pile power distribution device in this application is basically the same as the embodiments of the charging pile power distribution method described above, and will not be repeated here.

[0117] In addition, this application also provides a power distribution device for a charging pile. For example... Figure 5 As shown, Figure 5 This is a schematic diagram of the hardware operating environment involved in the embodiments of this application.

[0118] For example, Figure 5This is a schematic diagram of the hardware operating environment for the power distribution equipment of a charging pile.

[0119] like Figure 5 As shown, the charging pile power distribution device may include a processor 501, a communication interface 502, a memory 503, and a communication bus 504. The processor 501, the communication interface 502, and the memory 503 communicate with each other through the communication bus 504. The memory 503 is used to store computer programs. When the processor 501 executes the program stored in the memory 503, it implements the steps of the charging pile power distribution method.

[0120] The communication bus 504 mentioned in the charging pile power distribution equipment can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus 504 can be divided into an address bus, a data bus, and a control bus, etc. For ease of illustration, it is represented by only one thick line in the figure, but this does not indicate that there is only one bus or one type of bus.

[0121] The communication interface 502 is used for communication between the above-mentioned charging pile power distribution equipment and other equipment.

[0122] The memory 503 may include random access memory (RMD) or non-volatile memory (NM), such as at least one disk storage device. Optionally, the memory 503 may also be at least one storage device located remotely from the aforementioned processor 501.

[0123] The processor 501 mentioned above can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be 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, or discrete hardware components.

[0124] The specific implementation method of the charging pile power distribution device in this application is basically the same as the embodiments of the charging pile power distribution method described above, and will not be repeated here.

[0125] Furthermore, this application also proposes a computer-readable storage medium storing a charging pile power allocation program, which, when executed by a processor, implements the steps of the charging pile power allocation method as described above.

[0126] The specific implementation of the computer-readable storage medium in this application is basically the same as the embodiments of the charging pile power allocation method described above, and will not be repeated here.

[0127] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0128] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0129] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0130] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A power allocation method for charging piles, characterized in that, The power allocation method for the charging pile includes the following steps: Obtain the power requirements of the charging interface; Based on the power requirements and the preset charging module power, determine the charging modules to be used in the preset charging module layer; The preset charging module layer includes at least two layers arranged in a vertical order, each consisting of the same number of charging modules as the total number of charging interfaces. Each charging module in each module layer is connected in parallel via a power switch. Except for the topmost module layer which is directly connected to the positive and negative terminals of the charging interface, all other module layers are connected to the positive and negative terminals of the charging interface via power switches. The output power of each charging module is the same and equal to the preset charging module power. The power switch corresponding to the charging module is closed so that the charging interface can output power that meets the power requirements. The step of determining the charging module to be used in the preset charging module layer based on the power requirement and the preset charging module power includes: Based on the power requirements and the preset charging module power, calculate the required number of charging modules; The required number of charging modules are determined from each module layer of the preset charging module layer, and these are used as the charging modules to be used. The step of determining the required number of charging modules from each module layer of the preset charging module layer includes: Determine the top and bottom layers of each module layer in the preset charging module layer; According to the preset selection order, the corresponding charging modules are selected sequentially from the bottom layer to the top layer until the number of selected charging modules equals the required number. The charging modules to be used include a first charging module and a second charging module. The step of determining the required number of charging modules from each module layer of the preset charging module layer and using them as the charging modules to be used includes: When the required quantity is greater than the preset number of layers in each module layer, the first charging module in each module layer that is directly connected to the positive and negative terminals of the charging interface and connected through a power switch is selected. Select a second charging module that is connected in parallel with the first charging module via a power switch; Wherein, the number of the first charging modules is the number of layers in each module layer, and the number of the second charging modules is the difference between the required quantity and the number of layers.

2. The charging pile power allocation method as described in claim 1, characterized in that, The step of determining the required number of charging modules from each module layer of the preset charging module layer and using them as the charging modules to be used includes: When the required quantity is not greater than the preset number of layers in each module layer of the charging module layer, the charging modules in each module layer that are directly connected to the positive and negative terminals of the charging interface and / or connected through a power switch are selected as the charging modules to be used, based on the required quantity.

3. The charging pile power allocation method as described in claim 1, characterized in that, The step of selecting a second charging module connected in parallel with the first charging module via a power switch includes: Starting from the bottom layer and moving up to the top layer, select second charging modules that are connected in parallel with the first charging module via a power switch, until the number of second charging modules meets the difference between the required number and the number of layers.

4. The charging pile power allocation method as described in claim 1, further comprising: After detecting that the charging interface has stopped being used, the charging modules corresponding to the charging interface are released sequentially from the top to the bottom of the preset charging module layer.

5. A power distribution device for a charging pile, characterized in that, The charging pile power allocation device is used to implement the steps of the charging pile power allocation method as described in any one of claims 1 to 4, and the charging pile power allocation device includes: The acquisition module is used to acquire the power requirements of the charging interface; A determining module is used to determine the charging modules to be used in a preset charging module layer based on the power requirements and the preset charging module power. The preset charging module layer comprises at least two layers arranged in vertical order, each consisting of the same number of charging modules as the total number of charging interfaces. Each charging module within each layer is connected in parallel via a power switch. Except for the topmost layer, which is directly connected to the positive and negative terminals of the charging interface, all other layer modules are connected to the positive and negative terminals of the charging interface via power switches. The output power of each charging module is the same and equal to the preset charging module power. The control module is used to control the closing of the power switch corresponding to the charging module so that the charging interface can output power that meets the power requirements; The charging pile power distribution device is also used to achieve: Based on the power requirements and the preset charging module power, calculate the required number of charging modules; The required number of charging modules are determined from each module layer of the preset charging module layer, and these are used as the charging modules to be used. The charging pile power distribution device is also used to achieve: Determine the top and bottom layers of each module layer in the preset charging module layer; According to the preset selection order, the corresponding charging modules are selected sequentially from the bottom layer to the top layer until the number of selected charging modules equals the required number. The charging module to be used includes a first charging module and a second charging module, and the charging pile power distribution device is also used to achieve: When the required quantity is greater than the preset number of layers in each module layer, the first charging module in each module layer that is directly connected to the positive and negative terminals of the charging interface and connected through a power switch is selected. Select a second charging module that is connected in parallel with the first charging module via a power switch; Wherein, the number of the first charging modules is the number of layers in each module layer, and the number of the second charging modules is the difference between the required quantity and the number of layers.

6. A power distribution device for a charging pile, characterized in that, The device includes: a memory, a processor, and a charging pile power allocation program stored in the memory and executable on the processor, the charging pile power allocation program being configured to implement the steps of the charging pile power allocation method as described in any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a charging pile power allocation program, which, when executed by a processor, implements the steps of the charging pile power allocation method as described in any one of claims 1 to 4.

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