Charging system, charging management method, electronic device, and storage medium

Abstract

The invention provides a charging system, a charging management method, an electronic device and a storage medium, the charging system comprises a first electric energy distribution module, a second electric energy distribution module, a first charging channel, a second charging channel, an output module and a power allocation module, and the first electric energy distribution module and the second electric energy distribution module are electrically connected to a power supply. The output module is electrically connected to the first electric energy distribution module through the first charging channel and is electrically connected to the second electric energy distribution module through the second charging channel; the power allocation module is connected to a second charging channel between the output module and the second electric energy distribution module; the first electric energy distribution module obtains a first number of charging modules from a power supply to supply power to the output module; the second electric energy distribution module is configured to obtain the remaining charging modules from the power supply; and the power allocation module is configured to obtain a residual electric energy value required by the output module from the second electric energy distribution module to supply power to the output module. According to the scheme, resource waste is reduced.

Description

Technical Field

[0001] The disclosed embodiments of the present application relate to the field of electronic technology, and more specifically, to a charging system, a charging management method, an electronic device, and a storage medium. Background Art

[0002] Although traditional charging stacks claim to be able to "flexibly allocate" power, they actually allocate the corresponding relationship between several charging modules and different vehicle terminals, rather than accurately allocating specific power. This means that once a charging module is allocated, the full power of this module can only charge one vehicle. Even if the vehicle fails to consume all the power of this module, the excess power of this module cannot be used by other vehicles. This results in a certain waste of resources. Summary of the invention

[0003] According to an embodiment of the present application, the present invention proposes a charging system, a charging management method, an electronic device and a storage medium to reduce resource waste.

[0004] According to one aspect of the present application, a charging system is disclosed, including: a first power distribution module, a second power distribution module, a first charging channel, a second charging channel, an output module, and a power allocation module, wherein the first power distribution module and the second power distribution module are electrically connected to a power source, the output module is electrically connected to the first power distribution module through the first charging channel, and is electrically connected to the second power distribution module through the second charging channel; the power allocation module is connected to the second charging channel between the output module and the second power distribution module; the first power distribution module is configured to obtain a first number of charging modules from the power source to power the output module; the first number is obtained by dividing the power value actually required by the output module by the power value of each charging module and rounding down; the second power distribution module is configured to obtain the remaining charging modules from the power source; the power allocation module is configured to obtain the remaining power value required by the output module from the second power distribution module to power the output module; the remaining power value required by the output module is obtained by subtracting the sum of the power values ​​of the first number of charging modules from the power value actually required by the output module.

[0005] The second aspect of the present application provides a charging management method, including: when the power demand changes, determining the current power demand; dividing the current power demand by the power value of each charging module and rounding down to obtain a first quantity corresponding to each output module; adding the first quantity corresponding to each output module to obtain a flexible demand quantity of the charging module, so that the first power distribution module obtains the first number of charging modules from the charging modules with the flexible demand quantity to power the corresponding output modules, and the second power distribution module obtains the remaining charging modules to power the output modules, and the power allocation module obtains the remaining power value required by the output module from the second power distribution module to power the output module; the remaining power value required by the output module is obtained by subtracting the sum of the power values ​​of the first number of charging modules from the actual power value required by the output module.

[0006] A third aspect of the present application provides an electronic device, comprising a processor and a memory coupled to each other, wherein the processor is used to execute program instructions stored in the memory to implement the above-mentioned charging management method.

[0007] A fourth aspect of the present application provides a computer-readable storage medium having program instructions stored thereon, wherein the program instructions implement the above-mentioned charging management method when executed by a processor.

[0008] In the above scheme, since the electric energy value actually required by the output module is not necessarily an integer multiple of the electric energy value of the charging module, when sufficient charging modules are directly allocated to the output module, one of the charging modules may waste some electric energy; a first number of charging modules are obtained from the power supply through the first electric energy distribution module, and the electric energy value actually required by the first number of output modules is divided by the electric energy value of each charging module and rounded down; that is, a first number of charging modules are first allocated to the output module, but the electric energy provided by the first number of charging modules cannot meet the electric energy value actually required by the output module, and the remaining electric energy value required by the output module is provided by the second electric energy distribution module; the second electric energy distribution module obtains the remaining charging modules from the power supply, and the power allocation module obtains the remaining electric energy value required by the output module from the second electric energy distribution module to power the output module. That is to say, for the remaining electric energy value required by the output module, if this part of the remaining electric energy is powered by a charging module, it may cause waste of electric energy. However, by obtaining the remaining electric energy value required by the output module from the second electric energy distribution module through the power allocation module, it can just meet the needs of the output module and will not cause waste of electric energy, thereby helping to reduce resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present application will be further described below in conjunction with the accompanying drawings and implementation methods, in which: Figure 1 It is a schematic diagram of the framework of an embodiment of a charging system of the present application; Figure 2 is a schematic diagram of power allocation of a charging system in an embodiment of the present application; Figure 3 is a schematic diagram of a framework of another embodiment of a charging system of the present application; Figure 4 is a schematic diagram of a framework of another embodiment of a charging system of the present application; Figure 5 It is a partial schematic diagram between an output module and a power allocation module of an embodiment of a charging system of the present application; Figure 6 is a schematic diagram of a framework of another embodiment of a charging system of the present application; Figure 7 is a schematic diagram of a framework of yet another embodiment of a charging system of the present application; Figure 8 It is a partial schematic diagram between the second power distribution module and the power allocation module of an embodiment of the charging system of the present application; Fig. 9 It is a flowchart of an embodiment of a charging management method of the present application; Fig.10 It is a flow chart of another embodiment of the charging management method of the present application. DETAILED DESCRIPTION

[0010] In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0011] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "said", and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless otherwise clearly indicated above, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0012] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0013] It should be understood that the terms "include", "comprises" or any other variations used herein are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0014] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The presence of the phrase at each location in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0015] Although traditional charging stacks claim to be able to "flexibly allocate" power, they actually allocate the corresponding relationship between several charging modules and different vehicle terminals, rather than accurately allocating specific power. This means that once a charging module is allocated, the full power of this module can only charge one vehicle. Even if the vehicle fails to consume all the power of this module, the excess power of this module cannot be used by other vehicles. This results in a certain waste of resources.

[0016] For example, when the output module needs to charge the vehicle, the output module can obtain several charging modules from the power supply according to the charging power required by the vehicle (assuming that the power value of each charging module is 30KW). If the charging power required by the vehicle is 64KW, then in the traditional charging stack, 3 charging modules (total power of 90KW) need to be provided for the output module to meet the charging needs of the vehicle. However, 26KW of redundant power will be generated at this time, and this part of the redundant power cannot be used by other output modules, thereby causing a certain amount of resource waste.

[0017] To this end, the present application provides a charging system to reduce resource waste. The charging system provided by the present application can be used to charge a vehicle (such as a so-called new energy vehicle).

[0018] Please refer to Figure 1 The charging system 100 includes: a first power distribution module 120, a second power distribution module 130, a first charging channel P1 (such as Figure 1 The second charging channel P2 (shown by the solid arrow) Figure 1 As shown by the dashed arrow in the figure), the output module 150, the power allocation module 140, the first power distribution module 120 and the second power distribution module 130 are electrically connected to the power supply 110, the output module 150 is electrically connected to the first power distribution module 120 through the first charging channel P1, and is electrically connected to the second power distribution module 130 through the second charging channel P2; the power allocation module 140 is connected to the second charging channel P2 between the output module 150 and the second power distribution module 130; the first power distribution module 120 is configured to obtain a first number of charging modules from the power supply 110 for the output module 150 0 power supply; the first number is obtained by dividing the current power demand by the power value of each charging module and rounding down; the current power demand is the power value actually required by the output module 150; the second power distribution module 130 is configured to obtain the remaining charging module from the power supply 110; the power allocation module 140 is configured to obtain the remaining power value required by the output module 150 from the second power distribution module 130 to power the output module 150; the remaining power value required by the output module 150 is obtained by deducting the sum of the power values ​​of the first number of the charging modules from the power value actually required by the output module 150.

[0019] In the above scheme, since the electric energy value actually required by the output module 150 is not necessarily an integer multiple of the electric energy value of the charging module, when sufficient charging modules are directly allocated to the output module 150, one of the charging modules may waste some electric energy; a first number of charging modules are obtained from the power supply 110 through the first power distribution module 120, and the electric energy value actually required by the first number of the output modules 150 is divided by the electric energy value of each of the charging modules and rounded down; that is, a first number of charging modules are first allocated to the output module 150, but the electric energy provided by the first number of charging modules cannot meet the electric energy value actually required by the output module 150, and the remaining electric energy value required by the output module 150 is provided by the second power distribution module 130; the second power distribution module 130 obtains the remaining charging modules from the power supply 110, and the power allocation module 140 obtains the remaining electric energy value required by the output module 150 from the second power distribution module 130 to power the output module 150. That is to say, for the remaining electric energy value required by the output module 150, if this part of the remaining electric energy is powered by a charging module, it may cause waste of electric energy. However, the remaining electric energy value required by the output module 150 is obtained from the second electric energy distribution module 130 through the power allocation module 140, which can just meet the needs of the output module 150 and will not cause waste of electric energy, thereby helping to reduce resource waste.

[0020] It can be understood that the meaning of the first quantity is: after providing the first number of charging modules for each output module 150, the remaining power value required by each output module 150 is less than the power that can be provided by one charging module. For example, assuming that the current power demand of a certain output module 150 (i.e., the power value actually required) is 64KW, and the power that can be provided by each charging module is 30KW, then the first quantity is 2. After providing 2 charging modules for the output module 150, the remaining power value required by the output module 150 is 4KW, which is less than the power that can be provided by one charging module. At this time, providing a complete charging module for the output module 150 is not economical and is not conducive to reducing resource waste.

[0021] The power supply 110 can be connected to the city power grid and obtain electric energy from the city power grid. Electric energy can be expressed in voltage, or in power, etc. In this article, power is taken as an example. In actual application scenarios, the maximum electric energy that the power supply 110 can obtain from the city power grid (that is, the maximum power supply of the power supply 110, 360KW is taken as an example in some embodiments of this article. It can be understood that the maximum power supply of the power supply 110 in actual applications is not limited to this and can be set according to actual needs) is usually fixed. In addition, the power supply 110 can be divided into several charging modules (not shown in the figure), and each charging module can have the same electric energy value (for example, the power of each charging module can be 15KW / 30KW / 45KW, etc., and the power of each charging module is 30KW as an example in this article). Assuming that the power actually required by the output module 150 is 64KW, the first power distribution module 120 can obtain 2 (64 divided by 30 and rounded down) charging modules from the power supply 110 to power the output module 150. At this time, the output module 150 still needs 4KW of remaining power, then the second power distribution module 130 can obtain the remaining charging module from the power supply 110, and the power allocation module 140 obtains 4KW of power from the second power distribution module 130 to power the output module 150, so that the output module 150 just obtains 64KW of power from the power supply 110, thereby realizing the allocation of scattered power, which is beneficial to reduce resource waste.

[0022] It can be understood that "scattered power" is relative to the total power that a charging module can provide (for example, 30KW). As described in the previous example, when the power required by the output module 150 is 64KW, it is not economical to allocate 3 charging modules (total power is 90KW) to it, and if only 2 charging modules (total power is 60KW) are allocated to it, it is not enough to meet the demand (4KW of remaining power is still needed). This 4KW of remaining power can be called scattered power. The charging system provided by this application can realize the allocation of scattered power, which is conducive to reducing resource waste.

[0023] It should be noted that the terms "first" and "second" in the terms "first power distribution module", "second power distribution module", "first charging channel" and "second charging channel" are not used to limit the number of power distribution modules or charging channels, but are for the convenience of distinguishing different power distribution modules and different charging channels. This application does not limit the number of "first power distribution module", "second power distribution module", "first charging channel" and "second charging channel".

[0024] The second power distribution module 130 obtains the remaining charging modules from the power supply 110, which may be all the remaining charging modules from the power supply 110; or it may obtain the corresponding charging modules from the power supply 110 according to the needs of the output module 150; for example, the maximum power supply of the power supply 110 is 360KW, the power of each charging module is 30KW, and the power supply 110 includes 12 charging modules. Assuming that the actual power required by the output module 150 is 64KW, the first power distribution module 120 may obtain 2 charging modules from the power supply 110 to power the output module 150, and the second power distribution module 130 may obtain the remaining 10 charging modules from the power supply 110, or it may only obtain 1 charging module from the power supply 110 (because 1 charging module can meet the remaining 4KW power required by the output module 150).

[0025] After the second power distribution module 130 obtains the remaining charging modules from the power source 110, a new "power source" can be formed based on the obtained charging modules, so that the power allocation module 140 can obtain the required power from the second power distribution module 130. Exemplarily, assuming that the second power distribution module 130 obtains 3 charging modules, the second power distribution module 130 forms a new "power source 110" of 90KW, and the power allocation module 140 can obtain the required power (e.g., 24KW, 4KW, etc.) from the second power distribution module 130 through power conversion (e.g., voltage conversion), rather than only being able to obtain the power value of the charging module in integer multiples (e.g., 30KW, 60KW, etc.).

[0026] In some embodiments, the output module 150 is used to be electrically connected to the vehicle to power the vehicle. The output module 150 can be a charging gun, a charging socket, etc., and the present application does not limit the implementation of the output module 150.

[0027] In some embodiments, the charging system 100 may include multiple output modules 150 , such as 2, 3, 4, etc. The present application does not limit the number of output modules 150 in the charging system 100 .

[0028] Please refer to Figure 2, assuming that the charging system 100 includes 6 output modules 150 (output module 1 to output module 6), and at this time the actual power values ​​required by the 6 output modules 150 are: 40KW, 64KW, 57KW, 68KW, 83KW, 39KW, respectively, totaling 351KW, which is less than the maximum power supply of the power supply 110 (360KW); at this time, if scattered power allocation is performed, the number of charging modules obtained by the 6 output modules 150 from the power supply 110 are: 1, 2, 1, 2, 2, and 1, respectively. At this time, the second power distribution module 130 can obtain the remaining 3 charging modules, so the power value of the second power distribution module 130 is 90KW. For the remaining power values ​​required by each output module 150, the power allocation module 140 can obtain 10KW, 4KW, 27KW, 8KW, 23KW, and 9KW from the second power distribution module 130 respectively, thereby meeting the power required by each output module 150 while realizing the allocation of scattered power and reducing resource waste.

[0029] In some embodiments, the first power distribution module 120 is configured to obtain a first number of charging modules from the power supply 110 to power the output module 150 when the charging module demand obtained by dividing the current power demand by the power value of each charging module and rounding up is greater than the number of charging modules possessed by the power supply 110; the first number is obtained by dividing the power value actually required by the output module 150 by the power value of each charging module and rounding down; wherein the current power demand is the power value actually required by the output module 150; the second power distribution module 130 is configured The power allocation module 140 is configured to obtain the remaining electric energy value required by the output module 150 from the second electric energy distribution module 130 to power the output module 150 when the charging module demand obtained by dividing the current electric energy demand by the electric energy value of each charging module and rounding up is greater than the number of the charging modules possessed by the power supply 110; the power allocation module 140 is configured to obtain the remaining electric energy value required by the output module 150 from the second electric energy distribution module 130 to power the output module 150 when the charging module demand obtained by dividing the current electric energy demand by the electric energy value of each charging module and rounding up is greater than the number of the charging modules possessed by the power supply 110.

[0030] The first power distribution module 120 may also be configured to, when the number of flexible demands does not exceed the number of charging modules in the power supply 110, obtain a first number of charging modules from the power supply 110 to power the output module 150. Alternatively, when the number of flexible demands does not exceed the number of charging modules in the power supply 110, and the charging module demand obtained by dividing the current power demand by the power value of each charging module and rounding up is greater than the number of charging modules in the power supply, obtain a first number of charging modules from the power supply 110 to power the output module 150. When the number of flexible demands does not exceed the number of charging modules in the power supply 110, a first number of charging modules are obtained from the power supply 110 to power the output module 150 because, if the number of flexible demands exceeds the number of charging modules in the power supply, the power supply 110 can no longer provide more electric energy to the second electric energy distribution module 130, thereby failing to allocate scattered electric energy; and the charging module demand obtained by dividing the current electric energy demand by the electric energy value of each charging module and rounding up is greater than the number of charging modules in the power supply. In the case of the above, the first number of charging modules is obtained from the power supply 110 to power the output module 150 because, if the demand for charging modules is less than the number of charging modules of the power supply, it means that even without the allocation of scattered electric energy, the charging modules of the power supply can meet the charging needs of each output module. Therefore, it is not necessary to obtain the first number of charging modules from the power supply 110 to power the output module 150, and directly obtain the charging modules equivalent to the actual demand for charging modules required by each output module from the power supply to power each output module. Among them, the flexible demand quantity is obtained by adding the first quantity corresponding to each output module.

[0031] Similarly, the second power distribution module 130 can also be configured to obtain the remaining charging modules from the power supply 110 when the number of flexible demands does not exceed the number of charging modules in the power supply 110, or when the number of flexible demands does not exceed the number of charging modules in the power supply 110 and the charging module demand obtained by dividing the current power demand by the power value of each charging module and rounding up is greater than the number of charging modules in the power supply; the power allocation module 140 is configured to obtain the remaining power value required by the output module 150 from the second power distribution module 130 to power the output module 150 when the number of flexible demands does not exceed the number of charging modules in the power supply 110, or when the number of flexible demands does not exceed the number of charging modules in the power supply 110 and the charging module demand obtained by dividing the current power demand by the power value of each charging module and rounding up is greater than the number of charging modules in the power supply.

[0032] It can be understood that the "charging module demand" obtained by dividing the current power demand by the power value of each charging module and rounding up represents the number of charging modules required to fully meet the charging demand of the charging module. For example, assuming that the current power demand of an output module 150 (i.e., the power value actually required) is 64KW, and the power that each charging module can provide is 30KW, then the charging module demand is 3, because 3 charging modules are required to fully meet the charging demand of the output module 150. The flexible demand quantity can be used to determine whether there are any remaining charging modules in the power supply that can be used to allocate scattered power after providing the first number of charging modules for each output module 150.

[0033] In some embodiments, the charging system 100 may include a voltage comparator, an operational amplifier, or an integrated circuit with a comparison function to compare the current power demand with the maximum power supply of the power supply 110; the charging system 100 may also include an operational amplifier, a division operation circuit, an addition operation circuit, or an integrated circuit with an operation function, etc. to calculate the charging module demand. In some embodiments, the charging system 100 may also include a processor for determining whether the current power demand is less than the maximum power supply of the power supply 110, and whether the charging module demand obtained by dividing the current power demand by the power value of each charging module and rounding up is greater than the number of charging modules of the power supply 110, and triggering the first power module to obtain a first number of charging modules from the power supply 110 when the conditions are met, and triggering the second power distribution module 130 to obtain the remaining charging modules from the power supply 110, and triggering the power allocation module 140 to obtain the remaining power value required by the output module 150 from the second power distribution module 130 to power the output module 150.

[0034] In some embodiments, the power regulation module 140 includes a DC-DC converter (not shown) or an integrated circuit (not shown) having a DC voltage regulation function.

[0035] Referring to the above embodiment, after the second power distribution module 130 obtains the remaining charging modules from the power source 110, a new "power source" can be formed based on the obtained charging modules, so that the power allocation module 140 can obtain the required power from the second power distribution module 130 through power conversion (such as voltage conversion). The structure of the DC-DC converter 141 is well known in the art and will not be described in detail here.

[0036] In some embodiments, the second power distribution module 130 includes a DC bus (not shown), which can obtain the remaining charging modules from the power supply 110 .

[0037] In some embodiments, each of the power allocation modules 140 is connected to one of the output modules 150 .

[0038] Please refer to Figure 3 , the charging system 100 may include a host terminal A and a terminal B. The host terminal A may include a power supply 110, a first power distribution module 120, and a second power distribution module 130. The terminal B may include a plurality of output modules 150. Figure 3 In the illustrated embodiment, the power allocation module 140 is disposed at the host end A, and the power allocation module 140 includes a DC-DC converter 141, and one DC-DC converter 141 corresponds to one output module 150. Figure 3 As shown, a DC-DC converter 141 can be regarded as an independent power allocation module 140, so Figure 3 The system includes six independent power allocation modules 140 (for simplicity, Figure 3 Only one power allocation module 140 is marked in the figure) Assume that the actual required electric energy values ​​of the six output modules 150 are: 40KW, 64KW, 57KW, 68KW, 83KW, 39KW, totaling 351KW, and the maximum power supply of the power supply 110 is 360KW; the number of charging modules obtained by the six output modules 150 from the power supply 110 through the first power distribution module 120 are: 1, 2, 1, 2, 2, and 1, respectively. At this time, the second power distribution module 130 can obtain the remaining 3 charging modules, so the power value of the second power distribution module 130 is 90KW. For the remaining power value required by each output module 150, 10KW, 4KW, 27KW, 8KW, 23KW, and 9KW of power can be obtained from the second power distribution module 130 through the corresponding DC-DC converter 141, thereby meeting the power required by each output module 150 while realizing the allocation of scattered power and reducing resource waste.

[0039] In some embodiments, each of the power allocation modules 140 is connected to a plurality of the output modules 150 .

[0040] Please refer to Figure 4 , Figure 4 The embodiment shown is Figure 3 A variation of the embodiment shown. Figure 4 In the embodiment shown, the power allocation module 140 is still arranged at the host end A, and the power allocation module 140 also includes a plurality of DC-DC converters 141. Figure 3 The difference is that Figure 4One DC-DC converter 141 corresponds to two output modules 150. At this time, when the two output modules 150 electrically connected to one DC-DC converter 141 both need to obtain the remaining electric energy from the second electric energy distribution module 130, the electric energy converted by the DC-DC converter 141 can be delivered to one of the output modules 150 according to a predetermined strategy. The predetermined strategy can be, for example, delivering the converted electric energy to the output module 150 (or the smaller output module 150) with a larger required remaining electric energy value, or pre-configuring priorities for the two output modules 150, and giving priority to the output module 150 with a higher priority when a conflict occurs, etc. The present application does not limit the predetermined strategy.

[0041] Continue to refer Figure 4 , the terminal B may include charging piles B1, B2, and B3. And each charging pile may include two output modules 150 (eg, charging guns).

[0042] In other embodiments, each charging pile may also include 1, 3 or other number of output modules 150, and the number of charging piles of terminal B is not limited to 3, and this application does not impose any restrictions on this.

[0043] In some embodiments, please refer to Figure 5 The charging system 100 further includes an interlock switch 142 connected to the second charging channel P2 between the power adjustment module 140 and the plurality of output modules 150. Figure 5 As shown, one interlock switch 142 corresponds to one DC-DC converter 141, one interlock switch 142 is connected to two output modules 150, and the interlock switch 142 is connected between the DC-DC converter 141 and the two output modules 150. The interlock switch 142 is used to connect the DC-DC converter 141 to one of the two output modules 150 connected to the interlock switch 142, and disconnect the connection between the DC-DC converter 141 and the other output module 150, so that the DC-DC converter 141 only supplies power to one of the output modules 150.

[0044] In other embodiments, one interlock switch 142 may also be connected to three or more output modules 150 , so that one output module 150 is selected from the plurality of output modules 150 to be connected to the DC-DC converter 141 .

[0045] In some embodiments, please refer to Figure 6 , Figure 6 The embodiment shown is Figure 3 A variation of the embodiment shown. Figure 6 In the embodiment shown, Figure 3The difference between the embodiments shown is that the power allocation module 140 is set in the terminal B. For other references, Figure 3 The description of the corresponding embodiments will not be repeated here.

[0046] It is understandable that terminal B may include one charging pile, or terminal B may also include multiple charging piles, each of which may include one or more output modules 150 (such as charging guns), which is not limited in the present application.

[0047] In some embodiments, please refer to Figure 7 , Figure 7 The embodiment shown is Figure 4 A variation of the embodiment shown, in Figure 7 In the embodiment shown, Figure 4 The difference between the embodiments shown is that the power allocation module 140 is set in the terminal B. For other references, Figure 4 The description of the corresponding embodiment will not be repeated here. Figure 5 The charging system 100 may further include an interlock switch 142 connected to the second charging channel P2 between the power adjustment module 140 and the plurality of output modules 150 .

[0048] In some embodiments, the charging system 100 also includes a switching switch 144, which is electrically connected to the second charging channel P2 between the second power distribution module 130 and the output module 150, and is configured to be closed when the power allocation module 140 supplies power to the output module 150.

[0049] In some embodiments, please refer to Figure 8 The second power distribution module 130 can be a DC bus, the switching switch 144 can be connected to the DC bus, and a switching switch 144 can be electrically connected to a DC-DC converter 141. When the DC-DC converter 141 performs power allocation, the switching switch 144 of the corresponding DC-DC converter 141 is closed to release its power to the DC-DC converter 141.

[0050] In some embodiments, the switching switch 144 can be electrically connected to the second charging channel P2 between the second power distribution module 130 and the DC-DC converter 141. One switching switch 144 can be electrically connected to one DC-DC converter 141. When the DC-DC converter 141 performs power allocation, the switching switch 144 of the corresponding DC-DC converter 141 is closed to release its power to the DC-DC converter 141. In other embodiments, the switching switch 144 can also be electrically connected to the second charging channel P2 between the output module 150 and the DC-DC converter 141.

[0051] This application also proposes a charging management method, please refer to Fig. 9 Combined with Figure 1-Figure 8 , charging management methods include: Step S20: When the power demand changes, determine the current power demand.

[0052] The current power demand is the power value actually required by each output module.

[0053] Step S40: Divide the current power demand by the power value of each charging module and round down to obtain a first quantity corresponding to each output module.

[0054] Step S60: Add the first quantities corresponding to each output module to obtain the flexible demand quantity of the charging module, so that the first power distribution module obtains the first number of charging modules from the flexible demand quantity of charging modules to supply energy to the corresponding output modules, and the second power distribution module obtains the remaining charging modules to supply energy to the output modules, and the power allocation module obtains the remaining power value required by the output module from the second power distribution module to power the output module; the remaining power value required by the output module is obtained by subtracting the sum of the power values ​​of the first number of charging modules from the power value actually required by the output module.

[0055] Taking the scenario of a car charging station as an example, changes in electricity demand may occur when a vehicle enters the charging station to charge, or when a vehicle completes charging.

[0056] When the output module 150 needs to charge the vehicle, the output module 150 can obtain several charging modules from the power supply 110 according to the charging power required by the vehicle (assuming that the power value of each charging module is 30KW). If the charging power required by the vehicle is 64KW, then in the traditional solution, 3 charging modules (total power of 90KW) need to be provided for the output module 150 to meet the charging needs of the vehicle. However, 26KW of redundant power will be generated at this time, and this part of the redundant power cannot be used by other output modules 150, thereby causing a certain amount of resource waste.

[0057] Please refer to Figure 2The total electric energy value actually required by the six output modules 150 in the charging system 100 is 351KW, and the maximum power supply of the power supply 110 is 360KW, which is theoretically sufficient. However, if the allocation is performed according to the traditional scheme, the actual allocation result is: among the total of 12 charging modules, 9 charging modules are respectively allocated to the six output modules 150 and run at full power, while the other three charging modules are allocated to three of the output modules 150. Moreover, since the remaining electric energy required by the three output modules 150 is less than the electric energy value of the charging modules, these three charging modules are bound to have a surplus of electric energy, but the other output modules 150 cannot share the electric energy of these three charging modules, resulting in a waste of resources.

[0058] Similarly, if the total power value actually required by the six output modules 150 in the charging system 100 is 371KW, and the maximum power supply of the power supply 110 is 360KW, theoretically, all 360KW should be used to power the output modules 150. However, if the traditional solution is followed, similar to the above example, some charging modules will eventually fail to operate at full power, resulting in a waste of resources.

[0059] Combine the following Figure 2 The charging management method is analyzed and explained. Figure 2 After the output modules 1 to 6 in the system are allocated a part of the charging modules respectively, the residual electric energy values ​​required by each output module are 10KW, 4KW, 27KW, 8KW, 23KW, and 9KW respectively. If the allocation is carried out according to the traditional scheme, the three output modules with larger residual demands, 27KW, 23KW, and 10KW, may each get a 30KW charging module, which will definitely cause a waste of resources. The charging management method provided in the present application can use the remaining output modules to power the second power distribution module 130, and the power allocation module 140 corresponding to each output module can obtain the residual electric energy value required by each from the second power distribution module 130; or by summing the residual electric energy values ​​required by each output module, and then determining the number of charging modules required to meet all the residual electric energy values, and then electrically connecting the corresponding number of charging modules to the DC bus, so that it outputs a certain voltage to the DC bus as a new power supply 110. Combined with Figure 3 At this time, each of the six output modules has a DC-DC converter 141, so each output module can start its own DC-DC converter 141, and obtain the required power from the second power distribution module 130 (such as the DC bus), which is conducive to reducing resource waste. Figure 4, because one DC-DC converter 141 corresponds to two output modules, and one DC-DC converter 141 can only be used by one output module at a time, when two output modules using the same DC-DC converter 141 need to obtain the remaining power value from the second power distribution module 130 at the same time, the DC-DC converter 141 can only send the remaining power value to one of the output modules. For example, assuming Figure 2 The two output modules with the remaining power values ​​of 10KW and 27KW respectively share the same DC-DC converter 141. At this time, due to the limitation of the hardware level, the DC-DC converter 141 can be switched to the output module with the remaining power value of 27KW according to the predetermined strategy. The specific strategy can be selected in combination with cost and demand, and this application does not limit it.

[0060] Combine the following Fig.10, the power supply 110 management method of the present application is explained: when a new car is being charged or a vehicle is finished charging, the actual power value required by each output module 150 (i.e., the current power demand) is determined. Then, the current power demand is divided by the power value of each charging module and rounded down to obtain the first quantity corresponding to each of the output modules 150. It can be understood that after the first number of output modules 150 are allocated to these output modules 150, the power demand of these output modules 150 cannot be met. After obtaining the first quantity, it can be determined whether the sum of the first quantities corresponding to each output module 150 (i.e., the flexible demand quantity) exceeds the number of charging modules in the power supply 110. If the flexible demand quantity does not exceed the number of charging modules in the power supply 110, charging management is performed according to the aforementioned step S60. Alternatively, when the charging module demand obtained by dividing the current power demand by the power value of each charging module and rounding up is greater than the number of charging modules of the power supply, charging management may be performed in accordance with the aforementioned step S60; alternatively, when the flexible demand quantity does not exceed the number of charging modules in the power supply 110, and the charging module demand obtained by dividing the current power demand by the power value of each charging module and rounding up is greater than the number of charging modules of the power supply, charging management may be performed in accordance with the aforementioned step S60. When the number of flexible demands does not exceed the number of charging modules in the power supply 110, charging management is performed in accordance with the aforementioned step S60 because, if the number of flexible demands exceeds the number of charging modules in the power supply, the power supply 110 can no longer provide more electric energy to the second electric energy distribution module 130, and thus cannot be allocated; and when the charging module demand obtained by dividing the current electric energy demand by the electric energy value of each charging module and rounding up is greater than the number of charging modules in the power supply, charging management is performed in accordance with the aforementioned step S60 because, if the charging module demand is less than the number of charging modules in the power supply, it means that even if the charging management of scattered electric energy is not performed in accordance with the aforementioned step S60, the charging module of the power supply can meet the charging requirements of each output module, and therefore, the charging management of scattered electric energy may not be performed in accordance with step S60.

[0061] In the above scheme, since the electric energy value actually required by the output module 150 is not necessarily an integer multiple of the electric energy value of the charging module, when sufficient charging modules are directly allocated to the output module 150, one of the charging modules may waste some electric energy; a first number of charging modules are obtained from the power supply 110 through the first power distribution module 120, and the electric energy value actually required by the first number of the output modules 150 is divided by the electric energy value of each of the charging modules and rounded down; that is, a first number of charging modules are first allocated to the output module 150, but the electric energy provided by the first number of charging modules cannot meet the electric energy value actually required by the output module 150, and the remaining electric energy value required by the output module 150 is provided by the second power distribution module 130; the second power distribution module 130 obtains the remaining charging modules from the power supply 110, and the power allocation module 140 obtains the remaining electric energy value required by the output module 150 from the second power distribution module 130 to power the output module 150. That is to say, for the remaining electric energy value required by the output module 150, if this part of the remaining electric energy is powered by a charging module, it may cause waste of electric energy. However, the remaining electric energy value required by the output module 150 is obtained from the second electric energy distribution module 130 through the power allocation module 140, which can just meet the needs of the output module 150 and will not cause waste of electric energy, thereby helping to reduce resource waste.

[0062] It is easy for a person skilled in the art to know that many modifications and changes can be made to the device and method while maintaining the teaching content of the present application. Therefore, the above disclosure should be considered as limited only by the scope of the appended claims.

Claims

1. A charging system, characterized in that: include: A first power distribution module is electrically connected to a power source, a second power distribution module, electrically connected to the power source, A first charging channel and a second charging channel; an output module, electrically connected to the first power distribution module through the first charging channel, and electrically connected to the second power distribution module through the second charging channel; a power adjustment module, connected to the second charging channel between the output module and the second power distribution module; The first power distribution module is configured to obtain a first number of charging modules from the power supply to power the output module; the first number is obtained by dividing the current power demand by the power value of each charging module and rounding down; wherein the current power demand is the power value actually required by the output module; The second power distribution module is configured to obtain the remaining charging module from the power source; The power allocation module is configured to obtain the remaining electric energy value required by the output module from the second electric energy distribution module to power the output module; the remaining electric energy value required by the output module is obtained by deducting the sum of the electric energy values ​​of the first number of the charging modules from the electric energy value actually required by the output module.

2. The charging system according to claim 1, characterized in that: The first power distribution module is configured to obtain a first number of charging modules from the power supply to power the output module when the charging module demand obtained by dividing the current power demand by the power value of each charging module and rounding up is greater than the number of charging modules of the power supply; the first number is obtained by dividing the power value actually required by the output module by the power value of each charging module and rounding down; The second power distribution module is configured to obtain the remaining charging modules from the power supply when the charging module demand obtained by dividing the current power demand by the power value of each charging module and rounding up is greater than the number of the charging modules of the power supply; The power allocation module is configured to obtain the remaining electric energy value required by the output module from the second power distribution module to power the output module when the charging module demand obtained by dividing the current electric energy demand by the electric energy value of each charging module and rounding up is greater than the number of charging modules of the power supply.

3. The charging system according to claim 2, characterized in that: Also includes: A switching switch is electrically connected to the second charging channel between the second power distribution module and the output module, and is configured to be closed when the power allocation module supplies power to the output module.

4. The charging system according to claim 1, characterized in that: The power allocation module includes a DC-DC converter or an integrated circuit with a DC voltage regulation function.

5. The charging system according to claim 1, characterized in that: Each of the power allocation modules is connected to a plurality of the output modules.

6. The charging system according to claim 5, characterized in that: Also includes: An interlock switch is connected to the second charging channel between the power adjustment module and the plurality of output modules.

7. The charging system according to claim 1, characterized in that: Each of the power allocation modules is connected to one of the output modules.

8. A charging management method, applied to the charging system according to any one of claims 1 to 7, characterized in that: include: When the power demand changes, determine the current power demand; The current power demand is the power value actually required by each output module; Divide the current power demand by the power value of each charging module and round down to obtain a first quantity corresponding to each output module; The first quantity corresponding to each of the output modules is added together to obtain the flexible demand quantity of the charging module, so that the first power distribution module obtains the first number of charging modules from the charging modules with the flexible demand quantity to supply energy to the corresponding output modules, and the second power distribution module obtains the remaining charging modules to supply energy to the output modules, and the power allocation module obtains the remaining power value required by the output module from the second power distribution module to power the output module; the remaining power value required by the output module is obtained by subtracting the sum of the power values ​​of the first number of charging modules from the power value actually required by the output module.

9. An electronic device, characterized in that: It comprises a processor and a memory coupled to each other, wherein the processor is used to execute program instructions stored in the memory to implement the charging management method described in claim 8.

10. A computer-readable storage medium having program instructions stored thereon, characterized in that: When the program instructions are executed by the processor, the charging management method described in claim 8 is implemented.

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