Charging Control Device, Method, Charging System and Medium Based on Power Allocation

Abstract

The present application relates to the technical field of charging pile charging, and provides a charging control device, method, charging system and medium based on power distribution. The device creates X virtual PDU units with N inputs and 1 output based on the number X of charging terminals and the number N of power modules, and performs path settings for each charging path in the virtual PDU units to obtain path setting information; determines the actual charging power based on the charging power demand and the charging power of the power modules that can be allocated, and then performs power distribution on the virtual PDU units according to the path setting information and the actual charging power to determine the number of power modules allocated to the charging terminal and the current charging path connected to the power modules allocated to the charging terminal; controls the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path. The charging control method applied by the device simplifies the power distribution algorithm and improves the charging control efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicle charging, and more specifically, to a charging control device, method, charging system and medium based on power distribution. Background Art

[0002] With the increasing requirements of electric vehicles for charging power, a charging station will install multiple power modules in a single power cabinet, and centralized power management is performed by a microcontroller in the power cabinet. This system is called a power stack. The power stack outputs power to the charging terminal through the closing and opening of corresponding switches in the switch network, thereby realizing the charging of the electric vehicle. Among them, the control of the switch network is the key point for the power distribution unit (PDU, Power Distribution Unit) to control.

[0003] However, with the continuous increase in the charging power demand and the number of charging terminals, the topological shape of the switch network is constantly changing. It is often no longer reasonable to control the scheduling of power modules by exhausting the connected combinations of switch components to form a charging path, and the capacity of the corresponding control strategy will increase exponentially, making it difficult to maintain and measure, and the scalability is poor. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a charging control device, method, charging system and medium based on power distribution, which solves the above problems existing in the prior art and improves the charging control efficiency.

[0005] In a first aspect, a charging control device based on power distribution is provided, which is applied to a central control unit included in a charging system. The charging system further includes N power modules, a switch component array composed of multiple switch components, and X charging terminals, where 1 < X ≤ N, and both X and N are positive integers. The device may include:

[0006] A creation unit, configured to create X virtual PDU units with N inputs and 1 output based on the number X of charging terminals and the number N of power modules; wherein each virtual PDU unit is a full matrix structure, the N inputs of each virtual PDU unit are electrically connected to the N power modules in a one-to-one correspondence, the output end of each virtual PDU unit is electrically connected to one charging terminal, and each virtual PDU unit includes a charging path formed by electrically connecting at least one switch component;

[0007] A setting unit, configured to perform path setting on each charging path in the virtual PDU unit to obtain path setting information;

[0008] A determining unit, configured to determine the actual charging power output by a charging terminal corresponding to the electric vehicle to be charged in the charging system based on the charging power requirement of the electric vehicle to be charged and the charging power of the allocable power modules among the N power modules;

[0009] And, perform power allocation on the virtual PDU unit according to the path setting information of the charging path and the actual charging power, to determine the number of power modules among the N power modules that are allocated to the charging terminal and the current charging path in the virtual PDU unit that is connected to the power modules allocated to the charging terminal;

[0010] An execution unit, configured to control the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path.

[0011] In a second aspect, a charging control method based on power allocation is provided, which is applied to a central control unit included in a charging system. The charging system further includes N power modules, a switch component array composed of a plurality of switch components, and X charging terminals, where 1 < X ≤ N, and both X and N are positive integers. The method may include:

[0012] Create X virtual PDU units with N inputs and 1 output based on the number X of charging terminals and the number N of power modules; wherein, each virtual PDU unit is a full matrix structure, the N input ends of each virtual PDU unit are electrically connected to the N power modules in one-to-one correspondence, the output end of each virtual PDU unit is electrically connected to one charging terminal, and each virtual PDU unit includes a charging path electrically connected by at least one switch component;

[0013] Perform path setting on each charging path in the virtual PDU unit to obtain path setting information;

[0014] Based on the charging power requirement of the electric vehicle to be charged and the charging power of the allocable power modules among the N power modules, determine the actual charging power output by the charging terminal corresponding to the electric vehicle to be charged in the charging system;

[0015] Perform power allocation on the virtual PDU unit according to the path setting information of the charging path and the actual charging power, to determine the number of power modules among the N power modules that are allocated to the charging terminal and the current charging path in the virtual PDU unit that is connected to the power modules allocated to the charging terminal;

[0016] Control the power module assigned to the charging terminal to charge the electric vehicle to be charged through the current charging path.

[0017] In an alternative implementation, before controlling the power module assigned to the charging terminal to charge the electric vehicle to be charged through the current charging path, the method further includes:

[0018] Obtain the current switch states of the first target switch component in the current charging path and the second target switch component adjacent to the current charging path, and the operating state of the power module assigned to the charging terminal.

[0019] Controlling the power module assigned to the charging terminal to charge the electric vehicle to be charged through the current charging path includes:

[0020] Send a path conduction control instruction to the virtual PDU unit corresponding to the charging terminal to which the power module has been assigned.

[0021] If the current switch states of the first target switch component and the second target switch component are both consistent with the expected switch states corresponding to the path conduction control instruction of the current charging path, and the operating state is available, then control the power module assigned to the charging terminal to charge the electric vehicle to be charged through the current charging path, where the expected switch states are that the first target switch component is in the closed state and the second target switch component is in the open state.

[0022] In an alternative implementation, the method further includes:

[0023] If the current switch state of the first target switch component or the second target switch component is inconsistent with the expected switch state corresponding to the path conduction control instruction of the current charging path, or the operating state is unavailable, then update the path availability state of the current charging path to path unavailable and output an indication message of an abnormality in the current charging path.

[0024] In an alternative implementation, before performing power distribution on the virtual PDU unit, the method further includes:

[0025] Detect the path availability state of the current charging path.

[0026] In an alternative implementation, sending a path conduction control instruction to the virtual PDU unit corresponding to the charging terminal to which the power module has been assigned includes:

[0027] If the available state of the current charging path is available, a path conduction control instruction is sent to the virtual PDU unit corresponding to the charging terminal of the allocated power module.

[0028] In an alternative implementation, after sending the path conduction control instruction to the virtual PDU unit corresponding to the charging terminal of the allocated power module, the method further includes:

[0029] Update the available state of the current charging path to in-use, and update the available states of the charging paths of other virtual PDUs associated with the allocated power module to occupied.

[0030] In an alternative implementation, each charging path electrically connected to each power module includes at least one charging path segment, and each charging path segment is composed of multiple switch components.

[0031] In an alternative implementation, the path setting information includes the power module identifier corresponding to the current charging path, the charging path segment identifier included in the current charging path, the switch component identifier in the charging path segment corresponding to the charging path segment identifier, and the mutually exclusive switch component identifier in the charging path segment corresponding to the charging path segment identifier; wherein, the mutually exclusive switch component identifier is the identifier of the switch component that cannot be closed when the target switch component of the target charging path segment in the current charging path is closed.

[0032] In an alternative implementation, according to the path setting information of the charging path and the actual charging power, power is allocated to the virtual PDU unit to determine the number of power modules allocated to the charging terminal among the N power modules and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal, including:

[0033] Based on the power module identifier in the path setting information, determine the power module identifier corresponding to the virtual PDU unit;

[0034] According to the power module identifier corresponding to the virtual PDU unit, the switch component identifier included in the charging path segment corresponding to the charging path segment identifier, and the mutually exclusive switch component identifier in the corresponding charging path segment, power is allocated to the virtual PDU unit to determine the number of charging modules required to output the actual charging power and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal.

[0035] In an alternative implementation, after determining the number of power modules allocated to the charging terminal among the N power modules and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal, the method further includes:

[0036] When the current charging path includes multiple charging paths, determine the charging path to be charged among the multiple charging paths according to the pre-configured path priority order;

[0037] Controlling the power module assigned to the charging terminal to charge the electric vehicle to be charged through the current charging path includes:

[0038] Controlling the power module assigned to the charging terminal to charge the electric vehicle to be charged through the charging path to be charged in the current charging path.

[0039] In an alternative implementation, according to the path setting information of the charging path and the actual charging power, perform power distribution on the virtual PDU unit to determine the number of power modules assigned to the charging terminal among the N power modules and the current charging path in the virtual PDU unit connected to the power modules assigned to the charging terminal, including:

[0040] According to the pre-configured path setting information of the charging path and the actual charging power, perform power distribution on the virtual PDU unit to determine multiple candidate virtual PDU units with power output requests;

[0041] According to the pre-configured priority order of the virtual PDU units, determine the number of power modules requested by the virtual PDU with the highest priority among the multiple candidate virtual PDU units and the current charging path in the virtual PDU unit connected to the power modules assigned to the charging terminal;

[0042] Wherein, the priority order of the virtual PDU units is the order of the fixed priorities pre-set for the virtual PDU units, or the order of the dynamic priorities determined according to the sequence of activation of the virtual PDU units.

[0043] In an alternative implementation, the switch component array includes an annular switch component array, a linear switch component array, and a triangular pyramid-shaped switch component array.

[0044] In a third aspect, a charging system is provided, including a connection structure composed of a central control unit, multiple power modules, multiple charging terminals, and multiple switch components;

[0045] The central control unit is configured to execute any of the method steps in the first aspect on the connection structure composed of the multiple power modules, the multiple charging terminals, and the multiple switch components.

[0046] Fourthly, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is executed by a processor, the method steps described in any one of the above first aspects are implemented.

[0047] The charging control method based on power distribution provided by the embodiments of the present application can create X virtual PDU units with N inputs and 1 output based on the number X of charging terminals and the number N of power modules; each virtual PDU unit is a full matrix structure, and the N input ends of each virtual PDU unit are electrically connected to the N power modules in one-to-one correspondence, the output end of each virtual PDU unit is electrically connected to a charging terminal, and each virtual PDU unit includes a charging path composed of at least one switch component electrically connected; perform path setting on each charging path in the virtual PDU unit to obtain path setting information; based on the charging power requirement of the electric vehicle to be charged and the charging power of the allocable power modules among the N power modules, determine the actual charging power output by the charging terminal corresponding to the electric vehicle to be charged in the charging system; according to the path setting information of the charging path and the actual charging power, perform power distribution on the virtual PDU unit to determine the number of power modules allocated to the charging terminal among the N power modules and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal; control the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path. Compared with the prior art, this method does not need to develop corresponding charging control methods for charging systems with switch component networks of different structures, can perform charging control on charging systems with switch component networks of different structures, simplifies the power distribution algorithm and improves the charging control efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained according to these drawings without creative efforts.

[0049] Figure 1 It is a schematic diagram of a charging network topology structure provided by the embodiments of the present application;

[0050] Figure 2 It is a schematic diagram of the structure of a charging system provided by the embodiments of the present application;

[0051] Figure 3 It is a schematic flowchart of a charging control method based on power distribution provided by the embodiments of the present application;

[0052] Figure 4 Schematic structural diagram of another charging system provided by an embodiment of the present application;

[0053] Figure 5 Conversion schematic diagram of a charging system with a different structure provided by an embodiment of the present application;

[0054] Figure 6 Schematic structural diagram of a charging control device based on power distribution provided by an embodiment of the present application;

[0055] Figure 7 Schematic structural diagram of an electronic device provided by an embodiment of the present application. Specific embodiments

[0056] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0057] The charging control method based on power distribution provided by the embodiments of the present application can be applied in a charging network topology structure as Figure 1 shown. The charging network may include an operation platform layer, a charging system layer, and a charging terminal layer connected to the electric vehicle to be charged.

[0058] The operation platform layer is used for the informatization management within the charging company;

[0059] The charging system layer includes at least one charging system, which is used to dynamically adjust the output charging power according to the charging power demand of the electric vehicle and output the charging power to the charging terminal layer.

[0060] The charging terminal layer includes at least one charging terminal connected to each charging system, which is used to charge the electric vehicle to be charged based on the received charging power.

[0061] Among them, each charging terminal includes at least one charging terminal. Each charging terminal is set on a parking space or a charging position and is connected to an electric vehicle to be charged. The charging terminal is used to receive the actual charging current power of the electric vehicle to be charged and charge the electric vehicle to be charged based on this charging power.

[0062] It should be noted that each charging system and at least one connected charging terminal can be configured in one device to form a charging device, so as to achieve group charging or sequential charging of the charging terminals. Multiple charging devices can form a charging station, which can be applied in residential communities and commercial areas to provide electric energy supply for electric vehicles and facilitate users' travel.

[0063] The charging system based on power distribution provided in this application may include a central control unit, N power modules as the input of charging power, a switch component network of any structure (or "switch component connection topology of any shape"), and X output ports electrically connected to charging terminals, where both N and X are integers not equal to 0. Then, X N-input 1-output power distribution units (PDUs) can be constructed for the switch component network of any shape, that is, the charging paths in the switch component network are allocated to obtain X virtual PDU units with N inputs and 1 output. At this time, the virtual PDU units are all full matrix structures, that is, each virtual PDU unit has N input terminals, and each input terminal is respectively connected to a power module, each virtual PDU unit has 1 output terminal, and the output terminals of different virtual PDU units are different.

[0064] Specifically, the charging system for implementing the charging control method based on power distribution in this application may include a central control unit, multiple power modules, multiple charging terminals, and a switch component array composed of multiple connected switch components. Among them, the switch component array may include, but is not limited to, a ring-shaped switch component array, a linear switch component array, and a triangular pyramid-shaped switch component array.

[0065] The central control unit creates X N-input 1-output virtual PDU units based on the charging power demand of the electric vehicle to be charged, the number X of charging terminals, and the number N of power modules; the central control unit is communicatively connected to the N power modules and the X virtual PDU units respectively. Each virtual PDU unit is a full matrix structure, the N input terminals of each virtual PDU unit are electrically connected to the N power modules in one-to-one correspondence, the output terminal of each virtual PDU unit is electrically connected to a charging terminal, and each virtual PDU unit includes a charging path composed of at least one electrically connected switch component. That is to say, the number of charging paths of the virtual PDU units in the charging system is equal to the number of power modules, and the charging path is composed of at least one electrically connected switch component. Among them, 1 < X ≤ N, and both X and N are positive integers. As Figure 2 shown in the charging system, the virtual PDU units include P1, P2, P3, and P4, the power modules include M1, M2, M3, and M4, and the switch components include K1, K2, K3, K4, K5, K6, K7, and K8; among them, by controlling the switch components, each virtual PDU unit is electrically connected to multiple power modules, combined withFigure 2 , the structure in which P1 - P4 are electrically connected to four power modules is as follows:

[0066] For P1:

[0067] By closing K5, P1 can be electrically connected to M1, that is, the charging path CH11 is formed;

[0068] By closing K4 and K8, P1 can be electrically connected to M4 through P4, that is, the charging path CH12 is formed;

[0069] By closing K1 and K6, P1 can be electrically connected to M2 through P2, that is, the charging path CH13 is formed;

[0070] By closing K1, K2 and K7 or K3, K4 and K7, P1 can be electrically connected to M3 through P2, P3 or P4, P3, that is, the charging path CH14 is formed;

[0071] For P2:

[0072] By closing K6, P2 can be electrically connected to M2, that is, the charging path CH21 is formed;

[0073] By closing K1 and K5, P2 can be electrically connected to M1 through P1, that is, the charging path CH22 is formed;

[0074] By closing K2 and K7, P2 can be electrically connected to M3 through P3, that is, the charging path CH23 is formed;

[0075] By closing K1, K4 and K8 or K2, K3 and K8, P2 can be electrically connected to M4 through P1, P4 or P3, P4, that is, the charging path CH24 is formed; and so on...

[0076] For P4:

[0077] By closing K8, P4 can be electrically connected to M4, that is, a charging path CH41 is formed;

[0078] By closing K4 and K5, P4 can be electrically connected to M1 through P1, that is, the charging path CH42 is formed;

[0079] By closing K3 and K7, P4 can be electrically connected to M3 through P3, that is, the charging path CH43 is formed;

[0080] By closing K1, K4 and K6 or K2, K3 and K6, P4 can be electrically connected to M2 through P1, P2 or P3, P2, that is, the charging path CH44 is formed.

[0081] Among them, the switch components include but are not limited to relays, contactors, circuit breakers, knife - switch disconnectors, etc.

[0082] The states of the charging path include the path operation state and the path available state; among them, the path operation state includes: path closed, path disconnected, path operation in progress, and path control failure, etc.; the path available state includes: path available, path in use, path unavailable (including path switch failure, path power module failure), path occupied, and path not set, etc.

[0083] Furthermore, each charging path may include at least one charging path, and each charging path is electrically connected by a plurality of switch components.

[0084] The charging control method based on power distribution provided by the embodiments of the present application can flexibly allocate each power module through the configured virtual PDU unit, realize calling any number of power modules when there is a single output, and schedule any number of power modules according to a certain scheduling strategy when there are multiple outputs. That is, under a certain number of power modules and charging terminals, it can solve the charging control strategies of charging systems for switch component networks with different structures under different charging power requirements, and improve the charging control efficiency.

[0085] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings of the specification. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. And without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0086] Figure 3 It is a schematic flowchart of a charging control method based on power distribution provided by the embodiments of the present application. As Figure 3 shown, the method may include:

[0087] Step S310: Create X virtual PDU units with N inputs and 1 output based on the number X of charging terminals and the number N of power modules.

[0088] Each virtual PDU unit has a full matrix structure. Each virtual PDU unit has a full matrix structure. The N input ends of each virtual PDU unit are electrically connected to the N power modules in one-to-one correspondence. The output end of each virtual PDU unit is electrically connected to a charging terminal. Each virtual PDU unit includes a charging path composed of at least one switch component electrically connected.

[0089] As Figure 4As shown, the existing connection structure of the switch components in the charging system, such as a switch component array of any structure and X switch components K1, K2, …, Kx, is virtualized into X virtual PDU units. The output end of each virtual PDU unit is electrically connected to a charging terminal, that is, there are X outputs. Each virtual PDU unit can be a full matrix structure, which includes a charging path composed of multiple switch components electrically connected to all power modules respectively. For example, the first virtual PDU unit is sequentially electrically connected to power module 1, power module 2, power module 3, …, power module N through K11, K12, …, K1N, and K1 exists at the output end of the first virtual PDU unit; the second virtual PDU unit is sequentially electrically connected to power module 1, power module 2, power module 3, …, power module N through K21, K22, …, K2N, and K2 exists at the output end of the second virtual PDU unit, and so on.

[0090] It can be understood that each virtual PDU unit can also be a partial matrix structure, which includes a charging path composed of multiple switch components electrically connected to at least one of all power modules. Among them, Figure 4 the internal structure of the virtual PDU unit is only an example.

[0091] In one example, as Figure 5 shown, taking the charging system including 4 power modules and a ring-shaped switch component structure composed of 8 switch components K1, K2, K3, K4, K5, K6, K7, and K8. This ring structure includes 4 outputs, each output is electrically connected to a charging terminal, and taking the initial state of the 8 switch components as off as an example, in the current charging system, if K1 and K6 are closed, power module 1 can provide output power for the second charging terminal; if K1, K2, and K7 are closed, power module 1 can provide output power for the third charging terminal. Other charging paths can be referred to the accompanying drawings, and the details are not described herein. At this time, based on the above embodiments of the present application, the ring-shaped switch component structure composed of 8 switch components is virtualized into 4 virtual PDU units. Each virtual PDU unit has 4 outputs, each output is electrically connected to a charging terminal, each virtual PDU unit is respectively electrically connected to 4 power modules, and each virtual PDU unit internally includes multiple charging paths that can be formed by closing one or more switch components.

[0092] Step S320: Perform path setting on each charging path in the virtual PDU unit to obtain path setting information.

[0093] In the specific implementation, it is necessary to pre-configure the path setting information of each charging path according to the virtual PDU unit structure of the business requirements. The path setting information may include the power module identifier corresponding to the current charging path, the identifiers of each charging path included in the current charging path, the switch component identifier included in the charging path corresponding to the charging path identifier, and the mutually exclusive switch component identifier in the charging path corresponding to the charging path identifier. Among them, the current charging path is any charging path among the multiple charging paths included in the charging system; the mutually exclusive switch component identifier is the switch component identifier that other switch components cannot be closed when the target switch component on the target charging path in the current charging path is closed, that is, the mutually exclusive switch component refers to the switch component that cannot be turned on when the path where a certain switch component is turned on is turned on, that is, the switch component that cannot be turned on at the same time.

[0094] In one example, the path setting information Mod ch It can be expressed as:

[0095] Mod ch =(P ID ,Swich[i][j],Swich mut [i][k]);

[0096] Where P ID Indicates the identification of the power module; the values ​​of i, j and k need to be determined according to the structure of the PDU unit required by the business, and i, j and k are integers greater than zero; Swich[i][j] represents the jth switch component in the i-th charging path in the current path; Swich mut [i][k] represents the kth mutually exclusive switch in the i-th charging path in the current path.

[0097] It should be noted that the above-mentioned identification can be a pre-configured corresponding number or other distinguishable symbolic characters. ID It can be a pre-set fixed identifier, or it can be determined based on the charging path after turning on multiple power modules and detecting the charging paths of the virtual PDU units matching each power module before executing the method of the present application. For example, if a power module matches the charging path identified as serial number 1, the identifier of the power module can be serial number 1.

[0098] Step S330: based on the charging power requirement of the electric vehicle to be charged and the charging power of the allocable power modules among the N power modules, determine the actual charging power output by the charging terminal corresponding to the electric vehicle to be charged in the charging system.

[0099] In specific implementation, the battery management system (BMS) in the electric vehicle to be charged communicates with the central control unit in the charging system to obtain the charging request of the BMS. The charging request may include the actual charging power requirement (i.e., required voltage, required current), request time, etc.

[0100] According to the charging power of each power module and the charging power requirement of the electric vehicle to be charged, determine the actual charging power output by the charging terminal corresponding to the electric vehicle to be charged in the charging system.

[0101] It should be noted that if the number of electric vehicles to be charged is one or more, the number of charging requests may also be one or more; if the number of electric vehicles to be charged is multiple, that is, there are multiple charging power requirements at this time, the determined actual charging power output by the charging system is the actual charging power corresponding to each charging power requirement.

[0102] Step S340: According to the path setting information of each charging path and the actual charging power, perform power allocation on each virtual PDU unit to determine the number of power modules in the N power modules allocated to the charging terminal and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal.

[0103] Before executing this step, to ensure the execution of this application, it can be first detected whether the path setting information is configured. If so, execute this step; if not, output an indication message that the charging path is not set.

[0104] In the specific implementation of this step, based on the power module identifier in the path setting information, determine the power module identifier corresponding to the virtual PDU unit; according to the power module identifier corresponding to the virtual PDU unit, the switch component identifier included in the charging path corresponding to the charging path identifier, and the mutually exclusive switch component identifier in the charging path corresponding to the charging path identifier, perform power allocation on the virtual PDU unit to determine the number of charging modules required to meet the output of the actual charging power and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal.

[0105] In the above embodiments, based on the actual charging power, the power modules corresponding to each virtual PDU unit can be flexibly allocated, and each power module can be adjusted to obtain the power distribution strategy of the corresponding virtual PDU unit. Combining the switch component identifiers included in the charging path and the corresponding mutually exclusive switch component identifiers in the charging path of the charging path corresponding to each virtual PDU unit, it is determined that there is no charging path corresponding to the mutually exclusive switch component identifier in the power distribution strategy of each virtual PDU unit, and the corresponding charging path, thereby determining the virtual PDU unit to be charged that meets the output actual charging power and the current charging path in the virtual PDU unit to be charged. It can be seen that this method realizes the invocation of any number of power modules corresponding to the corresponding virtual PDU unit when there is a single output in the charging system; when there are multiple outputs in the charging system, any number of power modules corresponding to different virtual PDU units are allocated.

[0106] In some embodiments, according to the pre-configured path setting information of each charging path and the actual charging power, power is allocated to each virtual PDU unit, and multiple candidate virtual PDU units can be determined; that is, according to the power module identifier corresponding to the virtual PDU unit, the switch component identifier included in the charging path corresponding to the charging path identifier, and the mutually exclusive switch component identifier in the charging path corresponding to the charging path identifier, the number of power modules allocated to the charging terminal among the N power modules and multiple candidate virtual PDU units can be determined; the candidate virtual PDU units include the charging paths connected to the power modules allocated to the charging terminal.

[0107] At this time, according to the pre-configured priority order of the virtual PDU units, the current charging path connected to the power module allocated to the charging terminal can be determined from multiple candidate virtual PDU units; among them, the priority order of the virtual PDU units can be the order of the fixed priorities set for each virtual PDU unit in advance, or the order of the dynamic priorities determined according to the order of activation of the virtual PDU units, or other ways to determine the priority order of the virtual PDU units, which are not limited in this application.

[0108] It should be noted that the fixed priority means that it is set before the virtual PDU unit works. When power is allocated, the output requests of the high-priority virtual PDU units are preferentially satisfied, and as many power modules or charging paths as possible are allocated to the high-priority virtual PDU units. When the priorities of all virtual PDU units are the same, the power modules or charging paths are evenly allocated. The dynamic priority means that the priorities of the virtual PDU units are set in the order of activation time when the virtual PDU units are working. When a virtual PDU unit stops working, the priority order of all the working virtual PDU units will be refreshed in real time, always ensuring that the priorities are sorted from high to low. The allocation mechanism for power modules or charging paths is the same as that of the fixed priority.

[0109] Further, the path setting information may further include the number of switch components included in the charging path corresponding to each charging path identifier, and the number of mutually exclusive switch components in the corresponding charging path, etc.

[0110] Step S350: Control the power module assigned to the charging terminal to charge the electric vehicle to be charged through the current charging path.

[0111] Among them, the path conduction control instruction is used to control the first target switch component in the current charging path to close and the second target switch component in the current charging path to open. The number of switch components of the first target switch component can be one or more, and the number of switch components of the second target switch component can be one or more. The second target switch component is equivalent to a switch component with a protection function, protecting the current charging path from working and preventing the access of other charging paths.

[0112] In a specific implementation, after determining the current charging path connected to the power module assigned to the charging terminal, send a path conduction control instruction to the virtual PDU unit corresponding to the current charging path to control the first target switch component in the current charging path to close and the second target switch component to open, so as to control the power module corresponding to the virtual PDU unit to charge the electric vehicle to be charged through the current charging path. Then, update the path available state of the current charging path to in-use, and update the path available states of the charging paths of other virtual PDUs associated with the assigned power module to occupied.

[0113] Further, the path available state of the current charging path can be detected first; if the path available state of the current charging path is available, send a path conduction control instruction to the virtual PDU unit.

[0114] In some embodiments, before controlling the power module corresponding to the virtual PDU unit to charge the electric vehicle to be charged through the current charging path, the path action state of the current charging path can be obtained in real time. If it is detected that the path action state is that the path action has been completed, obtain the current switch states of the first target switch component and the second target switch component in the detected current charging path and the working state of the power module corresponding to the virtual PDU unit.

[0115] If the current switch states of the first target switch component and the second target switch component are both consistent with the expected switch states corresponding to the path conduction control instruction, and the working state is available, send a path conduction control instruction to the virtual PDU unit to control the power module corresponding to the virtual PDU unit to charge the electric vehicle to be charged through the current charging path, where the expected switch states are that the first target switch component is in the closed state and the second target switch component is in the open state.

[0116] Meanwhile, if the detected path operation state is that the path operation is in progress, it indicates that the switch components in the current charging path are being controlled to execute the path conduction control instruction. After detecting that the path operation state is path completion, the step of detecting whether the current switch states of the first target switch component and the second target switch component in the current charging path are consistent with the expected switch states corresponding to the path conduction control instruction is then executed, so as to obtain the current switch states of the first target switch component and the second target switch component in the detected current charging path and the working state of the power module corresponding to the virtual PDU unit.

[0117] It should be noted that if the current switch states of the first target switch component and the second target switch component are both consistent with the expected switch states, it indicates that the path operation state of the current charging path is path closed.

[0118] If the current switch state of the first target switch component or the second target switch component is inconsistent with the expected switch state corresponding to the path conduction control instruction, or the working state is unavailable, the path availability state of the current charging path is updated to path unavailable, an indication message of the current charging path abnormality is output, and step S320 is returned for execution. Among them, when a charging path of a certain virtual PDU is unavailable (such as contactor adhesion), the other charging paths associated with the PDU are also set to unavailable. The current switch state of the first target switch component or the second target switch component being inconsistent with the expected switch state corresponding to the path conduction control instruction indicates that the path operation state of the current charging path is path open.

[0119] Based on the above embodiments, if the current charging path includes multiple charging paths, after determining the number of power modules allocated to the charging terminal and the current charging path connected to the power modules allocated to the charging terminal, the charging path to be charged among the multiple charging paths can be determined according to the pre-configured path priority order; then, step S350 can charge the electric vehicle to be charged through the charging path to be charged in the current charging path by the power module corresponding to the virtual PDU unit to be charged.

[0120] Based on another embodiment of step S340, the working states of multiple power modules can be detected based on the power module identifiers in the path setting information to obtain the power module identifiers with available working states corresponding to each virtual PDU unit;

[0121] Based on the switch component identifiers in the switch components corresponding to the charging paths identified by the charging path identifiers included in the current charging path in the path setting information, the working states of the switch components corresponding to the corresponding switch component identifiers are detected to obtain the working states of each charging path as the switch component identifiers;

[0122] Based on the exclusive switch component identifiers in the charging paths corresponding to each charging path identifier in the path setting information, detect the exclusive states of different switch components included in each charging path, and obtain the switch component identifiers with exclusive states corresponding to each charging path;

[0123] According to the available power module identifiers, available switch component identifiers, and switch component identifiers with exclusive states, perform power distribution on each virtual PDU unit, determine the number of power modules allocated to the charging terminal and the current charging path connected to the power modules allocated to the charging terminal, so as to control the charging of the electric vehicle to be charged through the current charging path.

[0124] Corresponding to the above method, an embodiment of the present application further provides a charging control device based on power distribution, which is applied to the central control unit of the charging system, as Figure 6 shown. The charging control device includes: a creation unit 610, a setting unit 620, a determination unit 630, and an execution unit 640;

[0125] The creation unit 610 is configured to create X virtual PDU units with N inputs and 1 output based on the number X of the charging terminals and the number N of the power modules; wherein, each of the virtual PDU units is a full matrix structure, the N input ends of each virtual PDU unit are electrically connected to the N power modules in one-to-one correspondence, the output end of each virtual PDU unit is electrically connected to one charging terminal, and each virtual PDU unit includes a charging path composed of at least one switch component electrically connected;

[0126] The setting unit 620 is configured to perform path setting on each charging path in the virtual PDU unit to obtain path setting information;

[0127] The determination unit 630 is configured to determine the actual charging power output by the charging terminal corresponding to the electric vehicle to be charged in the charging system based on the charging power requirement of the electric vehicle to be charged and the charging power of the allocable power modules among the N power modules;

[0128] And, perform power distribution on the virtual PDU unit according to the path setting information of the charging path and the actual charging power, determine the number of power modules allocated to the charging terminal among the N power modules and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal;

[0129] The execution unit 640 is configured to control the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path.

[0130] The functions of the functional units of the charging control device provided in the above embodiments of the present application can be implemented by the above method steps. Therefore, the specific working processes and beneficial effects of each unit in the charging control device provided in the embodiments of the present application will not be repeated here.

[0131] The embodiments of the present application also provide an electronic device, as Figure 7 shown, including a processor 710, a communication interface 720, a memory 730, and a communication bus 740. Among them, the processor 710, the communication interface 720, and the memory 730 complete mutual communication through the communication bus 740.

[0132] The memory 730 is used to store a computer program;

[0133] When the processor 710 is used to execute the program stored on the memory 730, the following steps are implemented:

[0134] Based on the number X of the charging terminals and the number N of the power modules, create X virtual PDU units with N inputs and 1 output; wherein, each of the virtual PDU units is a full matrix structure, the N input ends of each virtual PDU unit are electrically connected to the N power modules in one-to-one correspondence, the output end of each virtual PDU unit is electrically connected to one of the charging terminals, and each virtual PDU unit includes a charging path formed by electrically connecting at least one switch component;

[0135] Perform path setting on each charging path in the virtual PDU unit to obtain path setting information;

[0136] Based on the charging power requirement of the electric vehicle to be charged and the charging power of the allocable power modules among the N power modules, determine the actual charging power output by the charging terminal corresponding to the electric vehicle to be charged in the charging system;

[0137] According to the path setting information of the charging path and the actual charging power, perform power allocation on the virtual PDU unit to determine the number of power modules among the N power modules allocated to the charging terminal and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal;

[0138] Control the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path.

[0139] The communication bus mentioned above can be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience in representation, only a thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0140] The communication interface is used for communication between the above-mentioned electronic device and other devices.

[0141] The memory can include a Random Access Memory (RAM), and can also include a Non-Volatile Memory (NVM), such as at least one disk memory. Optionally, the memory can also be at least one storage device located far from the aforementioned processor.

[0142] The above-mentioned processor 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, discrete hardware components.

[0143] Since the implementation manners and beneficial effects of the various devices of the electronic device in the above embodiments can be seen from Figure 3 the steps in the embodiments shown, therefore, the specific working process and beneficial effects of the electronic device provided by the embodiments of the present application will not be repeated here.

[0144] In another embodiment provided by the present application, a computer-readable storage medium is further provided. Instructions are stored in the computer-readable storage medium, and when it runs on a computer, the computer is caused to execute any one of the above-mentioned power-allocation-based charging control methods.

[0145] In another embodiment provided by the present application, a computer program product containing instructions is further provided. When it runs on a computer, the computer is caused to execute any one of the above-mentioned power-allocation-based charging control methods.

[0146] Those skilled in the art should understand that the embodiments in the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the embodiments in the embodiments of the present application can take the form of all-hardware embodiments, all-software embodiments, or embodiments combining software and hardware aspects. Moreover, the embodiments in the embodiments of the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program code.

[0147] The embodiments in the embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments in the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate for implementing in the process Figure 1 one process or multiple processes and / or blocks Figure 1 a device for the functions specified in one block or multiple blocks.

[0148] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements in the process Figure 1 one process or multiple processes and / or blocks Figure 1 the functions specified in one block or multiple blocks.

[0149] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0150] Although the preferred embodiments in the embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concepts. Therefore, the appended claims are intended to be interpreted to include the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0151] Obviously, those skilled in the art can make various modifications and variations to the embodiments in the embodiments of this application without departing from the spirit and scope of the embodiments in the embodiments of this application. Thus, if these modifications and variations of the embodiments in the embodiments of this application fall within the scope of the claims in the embodiments of this application and their equivalent technologies, then the embodiments of this application also intend to include these modifications and variations.

Claims

1. A charging control device based on power distribution, characterized in that, Applied to a charging system, the charging system further includes N power modules, a switch component array composed of a plurality of switch components, and X charging terminals, where 1 < X ≤ N, and both X and N are positive integers. The device includes: A creation unit configured to create X N-in-1-out virtual PDU units for the switch component array based on the number X of charging terminals and the number N of power modules; wherein each virtual PDU unit has a full matrix structure, the N input ends of each virtual PDU unit are electrically connected to the N power modules in a one-to-one correspondence, the output end of each virtual PDU unit is electrically connected to one charging terminal, and each virtual PDU unit includes a charging path formed by electrically connecting at least one switch component; A setting unit configured to perform path setting on each charging path in the virtual PDU unit to obtain path setting information; A determination unit configured to determine the actual charging power output by the charging terminal corresponding to the electric vehicle to be charged in the charging system based on the charging power requirement of the electric vehicle to be charged and the charging power of the allocable power modules among the N power modules; and perform power allocation on the virtual PDU unit according to the path setting information of the charging path and the actual charging power, to determine the number of power modules among the N power modules allocated to the charging terminal and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal; An execution unit configured to control the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path; Wherein, the charging path electrically connected to each power module includes at least one charging path segment, and each charging path segment is composed of a plurality of switch components; The path setting information includes the power module identifier corresponding to the current charging path, the charging path segment identifier included in the current charging path, the switch component identifier in the charging path segment corresponding to the charging path segment identifier, and the mutually exclusive switch component identifier in the charging path segment corresponding to the charging path segment identifier.

2. A charging control method based on power distribution, characterized in that, Applied to a central control unit included in a charging system, the charging system further includes N power modules, a switch component array composed of a plurality of switch components, and X charging terminals, where 1 < X ≤ N, and both X and N are positive integers. The method includes: For the switch component array, create X N-input 1-output virtual PDU units based on the number X of charging terminals and the number N of power modules; wherein each virtual PDU unit has a full matrix structure, the N input ends of each virtual PDU unit are electrically connected to the N power modules in a one-to-one correspondence, the output end of each virtual PDU unit is electrically connected to one charging terminal, and each virtual PDU unit includes a charging path formed by electrically connecting at least one switch component; Perform path setting on each charging path in the virtual PDU unit to obtain path setting information; Determine the actual charging power output by the charging terminal corresponding to the electric vehicle to be charged in the charging system based on the charging power demand of the electric vehicle to be charged and the charging power of the allocable power modules among the N power modules; Perform power allocation on the virtual PDU unit according to the path setting information of the charging path and the actual charging power, and determine the number of power modules among the N power modules allocated to the charging terminal and the current charging path in the virtual PDU unit connected to the power modules allocated to the charging terminal; Control the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path; Wherein, the charging path electrically connected to each power module includes at least one charging path, and each charging path is composed of a plurality of switch components; The path setting information includes the power module identifier corresponding to the current charging path, the charging path identifier included in the current charging path, the switch component identifier in the charging path corresponding to the charging path identifier, and the mutually exclusive switch component identifier in the charging path corresponding to the charging path identifier.

3. The method according to claim 2, characterized in that, Before controlling the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path, the method further includes: Obtain the current switch states of the first target switch component in the current charging path and the second target switch component adjacent to the current charging path, and the working state of the power modules allocated to the charging terminal; Controlling the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path includes: Sending a path conduction control instruction to the virtual PDU unit corresponding to the charging terminal to which the power module has been allocated; If the current switch states of the first target switch component and the second target switch component are both consistent with the expected switch state corresponding to the path conduction control instruction of the current charging path, and the working state is available, then control the power modules allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path, wherein the expected switch state is that the first target switch component is in the closed state and the second target switch component is in the open state.

4. The method according to claim 3, wherein The method further includes: If the current switch state of the first target switch component or the second target switch component is inconsistent with the switch expected state corresponding to the path conduction control instruction of the current charging path, or the working state is unavailable, then update the path available state of the current charging path to path unavailable, and output an indication information of the current charging path exception.

5. The method according to claim 3, characterized in that, Before performing power allocation on the virtual PDU unit according to the path setting information of the charging path and the actual charging power, the method further includes: Detect the path available state of the current charging path.

6. The method according to claim 5, characterized in that, Sending a path conduction control instruction to the virtual PDU unit corresponding to the charging terminal to which the power module has been allocated includes: If the path availability status of the current charging path is path available, a path conduction control instruction is sent to the virtual PDU unit corresponding to the charging terminal of the allocated power module.

7. The method according to claim 6, characterized in that After sending the path conduction control instruction to the virtual PDU unit corresponding to the charging terminal of the allocated power module, the method further includes: Updating the path availability status of the current charging path to in-use, and updating the availability status of the charging paths of other virtual PDUs associated with the allocated power module to occupied.

8. The method according to claim 2, wherein The mutex switch component identifier is the identifier of the switch component that cannot be closed when the target switch component of the target charging path in the current charging path is closed.

9. The method according to claim 8, wherein Performing power allocation on the virtual PDU unit according to the path setting information of the charging path and the actual charging power, and determining the number of power modules allocated to the charging terminal among the N power modules and the current charging path in the virtual PDU unit connected to the power module allocated to the charging terminal, including: Based on the power module identifier in the path setting information, determining the power module identifier corresponding to the virtual PDU unit; Performing power allocation on the virtual PDU unit according to the power module identifier corresponding to the virtual PDU unit, the switch component identifier included in the charging path corresponding to the charging path identifier, and the mutex switch component identifier in the corresponding charging path, and determining the number of charging modules required to output the actual charging power and the current charging path in the virtual PDU unit connected to the power module allocated to the charging terminal.

10. The method according to claim 2, wherein After determining the number of power modules allocated to the charging terminal among the N power modules and the current charging path in the virtual PDU unit connected to the power module allocated to the charging terminal, the method further includes: When the current charging path includes multiple charging paths, determining the charging path to be charged among the multiple charging paths according to the pre-configured path priority order; Controlling the power module allocated to the charging terminal to charge the electric vehicle to be charged through the current charging path, including: Controlling the power module allocated to the charging terminal to charge the electric vehicle to be charged through the charging path to be charged in the current charging path.

11. The method according to claim 2, wherein Performing power allocation on the virtual PDU unit according to the path setting information of the charging path and the actual charging power, and determining the number of power modules allocated to the charging terminal among the N power modules and the current charging path in the virtual PDU unit connected to the power module allocated to the charging terminal, including: Performing power allocation on the virtual PDU unit according to the pre-configured path setting information of the charging path and the actual charging power, and determining multiple candidate virtual PDU units with power output requests simultaneously; Determine the number of power modules requested by the virtual PDU with the highest priority among the multiple candidate virtual PDU units and the current charging path in the virtual PDU unit that is connected to the power module allocated to the charging terminal, according to the priority order of the pre-configured virtual PDU units. Among them, the priority order of the virtual PDU units is the order of the fixed priorities pre-set for the virtual PDU units, or the order of the dynamic priorities determined according to the sequence of activation of the virtual PDU units.

12. The method according to claim 2, characterized in that, The switch component array includes an annular switch component array, a linear switch component array, and a triangular pyramid-shaped switch component array.

13. A charging system, characterized in that, It includes a connection structure composed of a central control unit, multiple power modules, multiple charging terminals, and multiple switch components; The central control unit is configured to execute the steps of the charging control method based on power distribution according to any one of claims 2-12 on the connection structure composed of the multiple power modules, the multiple charging terminals, and the multiple switch components.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements the method steps according to any one of claims 2-12.

Images