Power distribution method of charging host, charging host and charging device

Abstract

The embodiment of the application relates to the technical field of charging systems, in particular to a power distribution method of a charging host, a charging host and a charging device. The charging host comprises at least two power unit groups, at least one coupling switch matrix and a control module, and the at least two power unit groups are coupled through the coupling switch matrix. The power distribution method comprises the following steps: in response to a power distribution instruction, it is judged whether the total available power of a target power unit group is greater than or equal to specified power; if not, it is judged whether the target power unit group is associated with an adjacent power unit group; if yes, the target coupling switch matrix is controlled according to the total available power of the target power unit group and the total available power of the adjacent power unit group, so that the target switch matrix unit can output the power supply of the specified power. Through the above method, the power distribution flexibility of the charging host as a whole and the utilization rate of the power unit are improved, and greater output power can be obtained, so that the demand for high-power charging is met.

Description

Technical Field

[0001] This application relates to the field of charging system technology, and in particular to a power distribution method for a charging host, a charging host, and a charging device. Background Technology

[0002] Currently, the charging host has multiple power output modules. Each power output module includes multiple power units and a switch matrix unit for distributing the output of the multiple power units, forming a power distribution system. The charging host distributes the power input through the coordination of switches within the switch matrix unit, thereby controlling the power of the charging gun at the output end.

[0003] However, each power output module is independent of the others. In actual use, the power output of each power output module is allocated to a charging pile. The charging piles do not interfere with each other. The power limit that the user can get from the charging pile is the power limit of the power output module corresponding to that charging pile. The other idle power output modules cannot provide additional power to the charging pile in use. Summary of the Invention

[0004] One objective of this application is to provide a power distribution method for a charging host, a charging host, and a charging device to solve the technical problem that a charging station in use cannot obtain additional power from other idle charging stations because each charging station is independent of the others.

[0005] In a first aspect, embodiments of this application provide a power allocation method for a charging host, the charging host comprising at least two power unit groups, at least one coupling switch matrix, and a control module. Each power unit group comprises at least two switch matrix units and at least two power units. Each switch matrix unit comprises at least two switches connected in parallel and assigned switch numbers. Each coupling switch matrix comprises at least two switches connected in parallel and assigned switch numbers. The at least two power unit groups are coupled through the coupling switch matrix, and switches with the same switch number but belonging to the coupling switch matrix or the switch matrix unit are electrically connected to the bus of the same power unit. The power allocation method includes:

[0006] In response to a power allocation command, determine whether the total available power of the target power unit group is greater than or equal to the specified power. The target power unit group is a power unit group among at least two power unit groups. The switch matrix unit in the target power unit group that matches the power allocation command is the target switch matrix unit.

[0007] If not, then determine whether the target power unit group is associated with an adjacent power unit group. The adjacent power unit group is the power unit group that is coupled to the target power unit group through a target coupling switch matrix. The target coupling switch matrix is ​​a coupling switch matrix in at least one coupling switch matrix.

[0008] If present, the target coupling switch matrix is ​​controlled according to the total available power of the target power unit group and the total available power of the adjacent power unit group, so that the target switch matrix unit can output the specified power.

[0009] Optionally, controlling the target coupling switch matrix based on the total available power of the target power unit group and the total available power of the adjacent power unit groups includes:

[0010] Target switching information is generated based on the total available power of the target power unit group and the total available power of the adjacent power unit groups. The target switching information is used to indicate the selection of the corresponding switch in the target coupling switch matrix.

[0011] The target coupling switch matrix is ​​controlled to perform switching operations based on the target switching quantity information.

[0012] Optionally, generating target switching information based on the total available power of the target power unit group and the total available power of the adjacent power unit groups includes:

[0013] Obtain target power idle information and adjacent power idle information. The target power idle information is used to record the available power units in the target power unit group, and the adjacent power idle information is used to record the available power units in the adjacent power unit group.

[0014] The maximum available coupling power of the adjacent power unit group is determined based on the target power idle information and the adjacent power idle information. The maximum available coupling power is the maximum power in the adjacent power unit group that can be used to couple with the target power unit group.

[0015] The target switching information is generated based on the maximum available coupling power and the total available power of the target power unit group.

[0016] Optionally, obtaining the target power idle information and adjacent power idle information includes:

[0017] Obtain switch status reference information, which includes the switch number and status of each switch in each switch matrix unit except the target switch matrix unit in the target power unit group and the adjacent power unit group;

[0018] Determine power association information, which is used to represent the binding relationship between the switches in each of the switch matrix units and the power units;

[0019] Based on the switch state reference information and the power association information, the target power idle information and the adjacent power idle information are obtained.

[0020] Optionally, determining the maximum available coupling power of the adjacent power unit group based on the target power idle information and the adjacent power idle information includes:

[0021] Determine whether the number of target available power units is greater than or equal to the number of adjacent available power units, wherein the target available power unit is the available power unit in the target power unit group, and the adjacent available power unit is the available power unit in the adjacent power unit group;

[0022] If so, the maximum available coupling power is determined based on the number of adjacent available power units and the preset power supply value of each adjacent available power unit;

[0023] If not, the maximum available coupling power is determined based on the number of the target available power units and the preset power supply value of each of the adjacent available power units.

[0024] Optionally, obtaining the target switching quantity information based on the maximum available coupling power and the total available power of the target power unit group includes:

[0025] Determine whether the sum of the maximum available coupling power and the total available power of the target power unit group is greater than or equal to the specified power;

[0026] If so, then generate the target switch quantity information;

[0027] If not, scheduling switch information is generated based on the maximum available coupling power and the total available power of the target power unit group. The scheduling switch information is used to instruct at least one of the target power unit group and the adjacent power unit group to open the switch, so as to increase at least one of the maximum available coupling power and the total available power of the target power unit group.

[0028] Optionally, generating the target switching information includes:

[0029] Obtain target coupling association information and adjacent coupling association information. The coupling association information includes the switch number of each switch on the target coupling matrix that connects to the target available power unit. The adjacent coupling association information includes the switch number of each switch on the target coupling matrix that connects to the adjacent available power unit.

[0030] The switch number that simultaneously belongs to both the target coupling association information and the adjacent coupling association information is determined to be the target switch number;

[0031] The target switch quantity information is generated based on all the target switch numbers.

[0032] Optionally, generating the target switch quantity information based on all the target switch numbers includes:

[0033] Determine whether the sum of the existing available coupling power and the total available power of the target power unit group is greater than or equal to the specified power, wherein the existing available coupling power is the sum of the power of the adjacent available power units corresponding to all the target switch numbers;

[0034] If so, generate the target switch quantity information based on all the target switch numbers;

[0035] If not, the switching information is generated based on the existing available coupling power and the total available power of the target power unit group. The switching information is used to instruct at least one of the target power unit group and the adjacent power unit group to switch to increase the existing available coupling power.

[0036] Optionally, determining whether there is an adjacent power unit group includes:

[0037] Obtain coupling configuration information, which is used to record the coupling relationship between all the power unit groups;

[0038] The target coupling switch matrix is ​​determined based on the coupling configuration information and the target power unit group;

[0039] The power unit groups connected by the target coupled switch matrix are traversed and searched to obtain the adjacent power unit groups.

[0040] In a second aspect, embodiments of this application also provide a charging host, comprising:

[0041] At least two power unit groups, each power unit group including at least two switch matrix units and at least two power units, each switch matrix unit including at least two switches connected in parallel and respectively assigned switch numbers;

[0042] At least one coupling switch matrix, each of the coupling switch matrices comprising at least two switches connected in parallel and respectively assigned switch numbers, at least two power unit groups being coupled through the coupling switch matrices, and switches with the same switch number but belonging to different units within the coupling switch matrix being electrically connected to the busbar of the same power unit; and

[0043] A control module is provided, which is connected to each of the switch matrix units and each of the coupling switch matrices. The control module includes a memory and a processor. The memory is connected to the processor, which executes one or more computer programs stored in the memory. When the processor executes the one or more computer programs, it causes the control module to implement the power distribution method as described above.

[0044] In a third aspect, embodiments of this application also provide a charging device, characterized in that it includes:

[0045] Charging terminal; and

[0046] As described above, the charging host is electrically connected to the charging terminal.

[0047] In a fourth aspect, embodiments of this application also provide a computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, the computer program including program instructions, which, when executed by a processor, cause the processor to perform the method as described in any of the preceding claims.

[0048] The embodiments of this application achieve the following technical effects: The embodiments of this application connect power unit groups through a coupling switch matrix. In this circuit topology, it is first determined whether the total available power of the target power unit group meets the specified power associated with the power allocation command. If the specified power is not met, it is determined whether the target power unit group has adjacent power unit groups. By coupling the available power of the target power unit group and the available power of adjacent power unit groups, the specified power is met. Therefore, the embodiments of this application, through the above power allocation method, improve the overall power allocation flexibility of the charging host and increase the utilization rate of idle power units. Simultaneously, the coupling between power unit groups can obtain greater output power, thereby meeting the high-power charging needs of the target charging vehicle. Attached Figure Description

[0049] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the structure of a charging device provided in an embodiment of this application;

[0051] Figure 2 This is a schematic diagram of the first circuit structure of a charging host provided in an embodiment of this application;

[0052] Figure 3 This is a schematic diagram of the second circuit structure of a charging host provided in an embodiment of this application;

[0053] Figure 4 A schematic diagram illustrating the connection between the control module, the switch matrix unit, and the coupling switch matrix in a charging host provided in an embodiment of this application;

[0054] Figure 5 This is a schematic diagram of the circuit structure of a charging device existing in the relevant technical field.

[0055] Figure 6 This is a schematic diagram of the operation of an existing charging device in the relevant technical field.

[0056] Figure 7 A flowchart illustrating a power allocation method for a charging host provided in an embodiment of this application;

[0057] Figure 8 This application provides a schematic diagram of the switching operation of a target coupling switch matrix for a charging host.

[0058] Figure 9 A schematic diagram of a third circuit structure of a charging host provided in an embodiment of this application;

[0059] Figure 10 for Figure 9 A schematic diagram of the power dispatching process in the third circuit structure;

[0060] Figure 11 A schematic diagram of the fourth circuit structure of a charging host provided in an embodiment of this application;

[0061] Figure 12 for Figure 11 A schematic diagram of the power switching process in the fourth circuit structure;

[0062] Figure 13 This is a schematic diagram of the structure of a control device for a charging host provided in an embodiment of this application;

[0063] Figure 14 This is a schematic diagram of the structure of a control module provided in an embodiment of this application. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0065] It should be noted that, unless there is a conflict, the various features in the embodiments of this application can be combined with each other, all of which are within the protection scope of this application. Furthermore, although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than the module division in the device or the order in the flowchart. Moreover, the terms "first," "second," and "third" used in this application do not limit the data or execution order, but only distinguish identical or similar items with essentially the same function and effect.

[0066] Please see Figure 1 This application provides a charging device 200, including a charging terminal 22 and a charging host 21. The charging terminal 22 is electrically connected to the charging host 21 and receives charging power from the charging host 21.

[0067] The charging terminal 22 can be regarded as a charging pile and can be equipped with at least one charging gun for charging the target charging vehicle 100 through the charging power provided by the charging host 21.

[0068] The charging host 21 is used to convert external power into charging power, and then distribute the charging power to the charging terminal 22. The charging power can be AC ​​or DC. The number of charging terminals 22 electrically connected to the charging host 21 is at least two. In other embodiments, the configuration can be made by the designer according to actual business needs, and there is no limitation here.

[0069] Please see Figure 2 The charging host 21 includes at least two power unit groups 211, at least one coupling switch matrix 212, and a control module 213.

[0070] Each power unit group 211 includes at least two switch matrix units 2112 and at least two power units 2111. It can be understood that the external power supply is transformed and divided by the voltage transformation and voltage division functional modules of the charging host 21 to obtain the power unit group 211. The power units 2111 in each power unit group 211 are power distributed through the switch matrix units 2112. Each power unit can output a power supply with a preset power supply value. For example, the preset power supply value is 40kW. In other embodiments, the preset power supply value can be configured by the designer according to the actual business needs, which is not limited here.

[0071] Each switch matrix unit 2112 includes at least two switches connected in parallel and each assigned a switch number. Each coupled switch matrix 212 also includes at least two switches connected in parallel and each assigned a switch number. It is understood that each switch in any switch matrix unit 2112 or each switch in a coupled switch matrix 212 is assigned a switch number to locate the switch corresponding to that number, facilitating monitoring of the switch status and control of the switch's opening and closing. The switch can be at least one of a type of switching device such as a contactor or relay. In some embodiments, the same type of switching device or the same type of switching device can be selected to reduce the number of device types and the complexity of setup. Furthermore, the output terminal of any switch matrix unit 2112 is connected to a charging gun on the charging terminal 22.

[0072] At least two power unit groups 211 are coupled through a coupling switch matrix 212, and switches with the same switch number but belonging to the coupling switch matrix 212 and the switch matrix unit 2112 are electrically connected to the bus of the same power unit 2111.

[0073] Understandably, taking one of the power unit groups 211 as an example, each switch on each switch matrix unit 2112 corresponds one-to-one with each power unit 2111. Switches with the same switch number but belonging to different switch matrix units 2112 are electrically connected to the bus of the same power unit. However, each switch matrix unit 2112 cannot simultaneously select the same power unit bus to avoid causing a short circuit.

[0074] Accordingly, taking one of the coupling switch matrices 212 and two power unit groups 211 coupled through the coupling switch matrix 212 as an example, the fixed terminals of each switch in the coupling switch matrix 212 correspond one-to-one with each power unit in one of the power unit groups 211, and the movable terminals of each switch in the coupling switch matrix 212 correspond one-to-one with each power unit in the other power unit group 211. Furthermore, switches with the same switch number but belonging to the coupling switch matrix 212 and switch matrix unit 2112 are connected to the busbar of the same power unit. When a switch with a certain switch number in the coupling switch matrix 212 is closed, only one of all switches with the same switch number belonging to different power unit groups 211 can be closed to avoid short circuits.

[0075] Please see Figure 3 In one embodiment, each power unit 2111 in each power unit group 211 is assigned a power number, and a one-to-one correspondence is established with the switch number of any switch in the switch matrix unit 2112 and the coupling switch matrix 212. For example, each power unit group 211 has 3 switch matrix units 2112, and each switch matrix unit 2112 and each coupling switch matrix 212 has 6 switches, assigned switch numbers 1 to 6 respectively. Each power unit group 211 has 6 power units, assigned power numbers 1 to 6 respectively. All switches with switch number 1 in any power unit group 211 are electrically connected to the power unit with power number 1 in the same power unit group 211. Correspondingly, the switch with switch number 1 in the coupling switch matrix 212 is connected to the power unit with power number 1 in that power unit group 211, and so on, until a configuration is formed. Figure 3 The circuit topology.

[0076] For example, when switch number 1 in the coupling switch matrix 212 is closed, only one switch number 1 among the switches with the same switch number belonging to different power unit groups 211 is closed, so as to select the power unit with power number 1 in the power unit group 211, and couple the power unit with power number 1 in another power unit group 211 through the coupling switch matrix 212 unit 2112.

[0077] It is understood that other encoding methods can also be used to write the power number of the power output unit and the switch number of the switch matrix unit 2112 in the embodiments of this application, which will not be elaborated here.

[0078] Furthermore, each switch matrix unit 2112 and each coupled switch matrix 212 can be located. For example, each switch matrix unit 2112 and each coupled switch matrix 212 will be configured with a unique address or ID. This information is stored in the database or configuration file of the control system of the charging host 21. The control system software can locate and control each switch matrix unit 2112 and each coupled switch matrix 212. The control system software interacts with the hardware through a driver program, and can address and control the switch matrix units 2112 and coupled switch matrices 212 according to their logical addresses, and monitor and adjust the operating status and power distribution path of each unit in real time.

[0079] The control module is one of the functional modules in the control system of the charging host 21. The control module is connected to each switch matrix unit 2112 and each coupling switch matrix 212 respectively, and is used to control each switch matrix unit 2112 and each coupling switch matrix 212 to select the corresponding power unit.

[0080] In some embodiments, the control module includes a matrix switch controller, which is electrically connected to each switch matrix unit 2112 and each coupled switch matrix 212, and each switch matrix unit 2112 and each coupled switch matrix 212 are controlled by the matrix switch controller.

[0081] Please see Figure 3 and Figure 4 In other embodiments, the control module 213 includes a device controller 2131 and multiple switch controllers 2132. A switch control unit is controlled by a corresponding switch controller 2132, and correspondingly, a coupled switch matrix 212 is controlled by a corresponding switch controller 2132. The device controller 2131 is electrically connected to each switch controller 2132 and is used to issue commands to each switch controller 2132 so that each switch controller 2132 controls a corresponding switch matrix unit 2112 or coupled switch matrix 212. This application uses the control module 213 including the device controller 2131 and switch controllers 2132 as an example to illustrate the overall technical solution.

[0082] It should be noted that any of the device controller 2131, matrix switch controller, and switch controller 2132 can be a general-purpose processor, digital signal processor, application-specific integrated circuit, field-programmable gate array, microcontroller, ARM or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. Furthermore, any of the device controller 2131, matrix switch controller, and switch controller 2132 can be a combination of any conventional processor, controller, microcontroller, or state machine, such as a combination of an FPGA and a microprocessor, or a combination of multiple microprocessors.

[0083] The control module 213 of this application embodiment can communicate with at least one of the terminal controller on the charging terminal 22 and the terminal controller on the charging host 21, and obtain the power allocation instruction sent by the terminal controller of the terminal controller or the terminal controller of the charging host 21. The power allocation instruction is used to instruct the charging host 21 to allocate a specified power to the target charging terminal.

[0084] The control module 213 responds to the power allocation command and determines the target power unit group 211a and the target switch matrix unit 2112 that match the power allocation command. The target power unit group 211a is a power unit group among at least two power unit groups, and the switch matrix unit 2112 in the target power unit group 211a that matches the power allocation command is the target switch matrix unit 2112a.

[0085] Furthermore, the control module 213 determines whether the total available power of the target power unit group 211a meets the specified power. If the specified power is met, the target switch matrix unit 2112a can be directly controlled to allocate the specified power to the target charging terminal 22.

[0086] If the total available power of the target power unit group 211a does not meet the specified power, the control module 213 determines whether the target power unit group 211a is associated with an adjacent power unit group 211b. The adjacent power unit group 211b is the power unit group that the target power unit group 211a is coupled to through the target coupling switch matrix 212a. The target coupling switch matrix 212a is a coupling switch matrix 212 in at least one coupling switch matrix 212. When the control module 213 determines that the target power unit group 211a is associated with an adjacent power unit group 211b, it controls the target switch matrix unit 2112a and the target coupling switch matrix 212a respectively to couple the total available power of the target power unit group 211a and the total available power of the adjacent power unit group 211b, thereby providing the specified power to the target charging terminal 22.

[0087] It is understood that the embodiments of this application connect the power unit groups through a coupling switch matrix, so that the idle power units between the power unit groups can be coupled out, and the charging piles can obtain idle additional power from each other to meet their own power requirements.

[0088] Please see Figure 5In charging equipment in related technical fields, any power unit group includes power units 1 to 4, coupling switches K1 to K4, and charging guns A1 to A4. Each power unit's output terminal is correspondingly equipped with a charging gun, and a coupling switch is provided between every two adjacent power units, allowing adjacent power units to achieve power coupling output through the coupling switch. Specifically, the output terminal of power unit 1 is electrically connected to charging gun A1, and power unit 1 and power unit 2 are connected through coupling switch K1; the output terminal of power unit 2 is electrically connected to charging gun A2, and power unit 2 and power unit 3 are connected through coupling switch K2, and so on, to form a... Figure 5 The circuit topology.

[0089] Please see Figure 6 Assuming each power unit has a preset power supply of 40kW, charging guns A2 and A4 each require 40kW, charging gun A3 requires 80kW, and charging gun A4 is idle. In this circuit topology, when power units 2 and 4 are in use, coupling switches K1, K2, K3, and K4 are all open. If coupling switches K2 and K3 remain closed, there is a risk of a short circuit. Therefore, power unit 3 cannot couple with power unit 1, resulting in insufficient power supply to charging gun A3.

[0090] As can be seen, under this circuit topology, if the power demand of the target charging gun exceeds the power that the corresponding power unit can provide, and there is a power unit that has been used on the coupling path between the corresponding power unit and the idle power unit, the coupling switch on the coupling path needs to be disconnected, so that the corresponding power unit cannot be coupled with the idle power unit, resulting in a reduction in the power unit utilization rate of the overall charging device.

[0091] Compared to charging devices in the aforementioned related technical fields, in the charging device of this application embodiment, the power units in each power unit group are independent of each other. This allows the switch matrix unit to select any power unit and superimpose the selected power units to increase the power output, thereby meeting the power requirements of the target vehicle and preventing the power units from being idle. Furthermore, the coupled switch matrix can also select power units with the same power number but belonging to different power unit groups to obtain greater output power, further meeting the power requirements of the charging gun.

[0092] This application provides a power allocation method for a charging host. Please refer to [link / reference]. Figure 7 The power distribution method of the charging host includes the following steps:

[0093] S71. In response to the power allocation command, determine whether the total available power of the target power unit group is greater than or equal to the specified power.

[0094] In this step, the power allocation command can be sent by the terminal controller of the charging host or the terminal controller of the charging terminal, and is obtained based on the charging needs of the target charging vehicle.

[0095] In some embodiments, the target power unit group is a power unit group among at least two power unit groups, and the switch matrix unit in the target power unit group that matches the power allocation command is the target switch matrix unit. The total available power referred to in the embodiments of this application is the total available power of the power unit group that is not allocated and is idle.

[0096] The control module parses the power allocation command to obtain the specified power required by the target charging gun and determines the target power unit group and the target switch matrix unit. After determining the target power unit group, the control module determines the total available power of the target power unit group. For example, the control module determines the total available power of the target power unit group based on a power allocation record, which records the power allocation between all power unit groups in the charging host and the charging terminal. Alternatively, the control module determines the total available power of the target power unit group based on the selection status of each switch in the switch matrix within the target power unit group.

[0097] S72a If so, control the target switch matrix unit according to the total available power of the target power unit group so that the target switch matrix unit outputs a power supply of a specified power.

[0098] Understandably, after determining the total available power of the target power unit group, the control module checks whether the total available power of the target power unit group is greater than or equal to the specified power. If the total available power of the target power unit group is greater than or equal to the specified power, it means that the total available power of the target power unit group can meet the power requirements of the target charging gun, and the control module directly allocates the specified power of charging power to the target charging gun. For example, the device controller sends switching information to the switch controller corresponding to the target switch matrix unit. This switching information is used to instruct the target switch matrix unit to select the corresponding power unit in the target power unit group.

[0099] S72b If not, determine whether the target power unit group is associated with an adjacent power unit group.

[0100] Among them, the adjacent power unit group is the power unit group that is coupled to the target power unit group through the target coupling switch matrix, and the target coupling switch matrix is ​​the coupling switch matrix in at least one coupling switch matrix.

[0101] It is understood that the power allocation method in this application embodiment is based on a circuit topology that allows coupling between power unit groups. Therefore, after determining that the total power of the target power unit group is less than the specified power, the control module determines whether the target power unit group is associated with an adjacent power unit group in order to couple the available power of the adjacent power unit group.

[0102] S73a If not, the target switch matrix unit is controlled according to the total available power of the target power unit group so that the target switch matrix unit can output its total available power.

[0103] Understandably, when there are no adjacent power unit groups in the total available power of the target power unit group, the charging host still allocates its own total available power to the charging terminal to meet the basic charging needs of the vehicle. For example, the device controller sends switching information to the switch controller corresponding to the target switch matrix unit. This switching information instructs the target switch matrix unit to select the corresponding power unit in the target power unit group.

[0104] S73b If it exists, the target coupling switch matrix is ​​controlled according to the total available power of the target power unit group and the total available power of the adjacent power unit groups so that the target switch matrix unit can output a power of specified power.

[0105] In general, the embodiments of this application first determine whether the total available power of the target power unit group meets the specified power. If the specified power is not met, it determines whether the target power unit group has adjacent power unit groups. By coupling the available power of the target power unit group and the available power of the adjacent power unit groups, the specified power is met. In addition, the embodiments of this application improve the overall power allocation flexibility of the charging host through the above power allocation method, improve the utilization rate of idle power units, and at the same time, the power unit groups can obtain greater output power through coupling, thereby meeting the high-power charging needs of the target charging vehicle.

[0106] In some embodiments, the step of determining whether there is an adjacent power unit group includes:

[0107] S721, Obtain coupling configuration information.

[0108] In this step, the coupling configuration information is used to record the coupling relationships between all power unit groups.

[0109] S722. Determine the target coupling switch matrix based on the coupling configuration information and the target power unit group.

[0110] S723. Traverse the power unit groups connected by the target coupled switch matrix to obtain the adjacent power unit groups.

[0111] In this step, the control module determines the adjacent power unit groups of the target power unit group from the coupling configuration information.

[0112] In step S721, the coupling relationship between power unit groups is represented by the binding relationship and connection structure between each power unit located in different power unit groups and the associated coupling switch matrix. This content is pre-recorded during the design phase and converted into at least one representation form such as connection drawings, connection relationship lists, arrays, etc., and stored in the database or configuration file of the control system. For example Figure 5 The connection diagram of the power distribution module shown can also be represented as an array {(power unit group number 1, coupling switch matrix number 1, 3), (power unit group number 2, coupling switch matrix number 1, 2), (power unit group number 3, coupling switch matrix number 2, 3)}. That is, this array can be represented as follows: power unit groups numbered 1 and 2 are coupled together through a common coupling switch matrix numbered 1; power unit groups numbered 2 and 3 are coupled together through a common coupling switch matrix numbered 2; and power unit groups numbered 1 and 3 are coupled together through a common coupling switch matrix numbered 3.

[0113] In some embodiments, the control module uses an I / O interface for transmission. The control module includes a device controller and multiple switch controllers, each switch controller being connected to a corresponding switch matrix unit or coupled switch matrix. The device controller is equipped with an encoder, which assigns coded addresses to each switch matrix unit, each coupled switch matrix, and each switch. The switch controller is equipped with a decoder for parsing the instructions of the device controller to control the switch matrix unit or coupled switch matrix. This application embodiment uses... Figure 2 Taking the circuit structure in the example, two binary compilation addresses are used.

[0114] One of the coded addresses is divided into three address layers. The first layer records the power unit group to which the switch matrix unit belongs, represented by "-XX". For example, "01" represents the first power unit group (from bottom to top), "10" represents the second power unit group, and so on. The second layer records the switch matrix units, represented by "-XX-XX". For example, "01-01" represents the first switch matrix unit in the first power unit group (from right to left). The third layer records each switch in the switch matrix unit, represented by "-XXX-XX-XX". For example, "010-01-01" represents the first switch matrix unit in the first power unit group, and the switch with switch number 2 in the first switch matrix unit (from right to left).

[0115] The other coded address is divided into two address layers. The first layer is used to record the coupling switch matrix, represented by "-XX", for example, "01" represents the first coupling switch matrix. The second layer is used to record each switch in the coupling switch matrix, represented by "-XXX-XX". For example, "011-01" represents switch number 3 in the first coupling switch matrix. The first coupling switch matrix is ​​associated with the first power unit group and the second power unit group.

[0116] It is understandable that the encoding form of the switch matrix unit, the coupled switch matrix, and any of the switches can be configured according to actual needs, and there are no restrictions here.

[0117] In some embodiments, controlling the target coupling switch matrix based on the total available power of the target power unit group and the total available power of adjacent power unit groups includes the following steps:

[0118] S731. Generate target switching information based on the total available power of the target power unit group and the total available power of adjacent power unit groups.

[0119] In this step, the target switching information is used to indicate the corresponding switch in the target coupling switch matrix.

[0120] In some embodiments, the device controller generates target switching information based on the encoded address of the target coupled switch matrix, represented in the form of "-X-XXX-XX". The last bit of the switching information indicates the corresponding switch operation; for example, a value of 1 in the last bit indicates a closed switch operation, and a value of 0 in the last bit indicates an open switch operation. See, for example, [link to relevant documentation]. Figure 8 The target switch information "1-011-01" is used to instruct switch number 3 in the first coupled switch matrix to perform a closing operation.

[0121] S732. Control the target coupled switch matrix to perform switching operations based on the target switching quantity information.

[0122] In this step, after the device controller generates the target switch quantity information, it broadcasts it. Each switch controller obtains and parses the target switch quantity information. The switch controller determines whether the corresponding connected coupling switch matrix matches the encoded address in the target switch quantity information. If so, it further determines the switch number in the target switch quantity signal and the switch operation to be performed, and controls the switch corresponding to that switch number to close or open.

[0123] In some embodiments, generating target switching information based on the total available power of the target power unit group and the total available power of adjacent power unit groups includes the following steps:

[0124] S7311, Obtain target power idle information and adjacent power idle information.

[0125] In this step, the target power idle information is used to record the available power units in the target power unit group, and the adjacent power idle information is used to record the available power units in the adjacent power unit group. In some embodiments, the target power idle information includes the identifier of the target power unit group and the power number of the available power units, and the adjacent power idle information includes the identifier of the adjacent power group and the power number of the available power units.

[0126] S7312. Determine the maximum available coupling power of the adjacent power unit group based on the target power idle information and the adjacent power idle information.

[0127] In this step, the maximum available coupling power is the maximum power in the adjacent power unit group that can be used to couple with the target power unit group. The available power units in the target power unit group are the target available power units, and the available power units in the adjacent power unit group are the adjacent available power units. When the target power unit group couples with the adjacent power unit group, the target available power units and adjacent available power units that are coupled through the target coupling switch matrix should correspond one-to-one. A pair of coupletable target available power units and adjacent available power units together constitute a coupletable power unit pair. It can be understood that the maximum available coupling power is the power obtained by multiplying the number of coupletable power unit pairs by the preset power supply value of the adjacent available power units.

[0128] S7313. Generate target switching information based on the maximum available coupling power and the total available power of the target power unit group.

[0129] In this step, by way of example, the embodiment of this application determines the power number of at least one of the target available power unit and the adjacent available power unit that has the associated maximum available coupling power as the target power number, and determines the switch number of the switch that needs to be closed in the target coupling switch matrix based on the target power number and the coupling configuration information, and generates the target switching quantity information accordingly.

[0130] In some embodiments, obtaining target power idle information and adjacent power idle information includes the following steps:

[0131] S73111, Obtain switch status reference information.

[0132] In this step, the switch status reference information includes the switch number and status of each switch in each switch matrix unit, excluding the target switch matrix unit, in the target power unit group and adjacent power unit groups.

[0133] S73112, Determine power association information.

[0134] In this step, the power association information is used to represent the binding relationship between the switches and power units in each switch matrix unit.

[0135] In this step, power association information is used to represent the binding relationship between switches and power units in each switch matrix unit. This information is pre-recorded during the design phase and converted into at least one representation such as connection drawings, connection relationship lists, or arrays, and stored in the control system's database or configuration file. For example... Figure 4 The schematic diagram of the power distribution circuit shown can also be represented as an array {(power number 1, switch number 1), (power number 2, switch number 2), (power number 3, switch number 3), (power number 4, switch number 4), (power number 5, switch number 5), (power number 6, switch number 6)}.

[0136] S73112. Based on the switch status reference information and power association information, obtain the target power idle information and the adjacent power idle information.

[0137] Understandably, in this application embodiment, the switch number of an unclosed switch can be determined through switch state reference information, and then the power number of the available power unit in the target power unit group and adjacent power unit groups can be further determined based on the switch number of the unclosed switch and power association information.

[0138] In some embodiments, step S73111 includes the following steps:

[0139] S73111a, Send a request to obtain switch status reference information.

[0140] In this step, the request is sent to the reference switch controller. In the target power unit group and the adjacent power unit group, the switch matrix unit other than the target switch matrix unit is the reference switch matrix unit, and the switch controller connected to the reference switch matrix unit is the reference switch controller.

[0141] S73111b: Obtain switch status reference information.

[0142] In this step, the switch status reference information obtained is sent by the reference switch controller.

[0143] Understandably, the device controller sends a request to the reference switch controller to obtain switch status reference information in order to obtain the switch number and status of each switch in the reference switch matrix unit.

[0144] For example, one implementation of a reference switch controller returning the switch number and status of each switch is provided. Taking one switch as an example, switch status reference information is generated based on the coded address of the switch, represented in the form of "X-XXX-XX-XX". For example, "1-010-01-01" represents the first switch matrix unit in the first power unit group, the switch with switch number 2 in the first switch matrix unit, and the switch is in the closed state.

[0145] In some other embodiments, step S73111 includes the following steps:

[0146] S73111c, Obtain reference switch quantity information.

[0147] In this step, the switching information sent by the device controller to the reference switch controller is the reference switching information, which is used to instruct the reference switch matrix unit to select the corresponding switch.

[0148] S73111d: Obtain switch status reference information based on reference switch quantity information.

[0149] Understandably, the reference switch quantity information records the switch number of each switch in the reference switch matrix unit and the switch operation indicated by it, thus determining the state of each switch. For example, the reference switch quantity information sent by the device controller is "1-010-01-01". This reference switch quantity information records the switch number 2 in the first switch matrix unit of the first power unit group, and that this switch has performed a closing operation. Therefore, the device controller can obtain switch state reference information based on the reference switch quantity.

[0150] In some embodiments, the coupling relationship between power unit groups is represented by the binding relationship and connection structure between each power unit located in a different power unit group and the associated coupling switch matrix. This information is pre-recorded during the design phase and converted into at least one representation such as connection drawings, connection relationship lists, or arrays, and stored in the control system's database or configuration file. For example... Figure 5 The connection diagram of the power distribution module shown can also be represented as an array {(Power No. 1, Switch No. 1),(Power No. 2, Switch No. 2),(Power No. 3, Switch No. 3),(Power No. 4, Switch No. 4),(Power No. 5, Switch No. 5),(Power No. 6, Switch No. 6)}.

[0151] In other embodiments, one way to obtain target power idle information and adjacent power idle information is to detect whether each power unit in the target power unit group and adjacent power unit groups is in a charging loop. If a power unit is not in a charging loop, then that power unit can be determined to be an available power unit. For example, the charging host includes a detection module, which is electrically connected to the control module and each power unit in each power unit group. The detection module is used to detect whether each power unit in each power unit group is in a charging loop and sends the detection result signal to the control module. The detection module can employ at least one of a current detection circuit and a voltage detection circuit.

[0152] In some embodiments, determining the maximum available coupling power of an adjacent power unit group based on the target power idle information and the adjacent power idle information includes the following steps:

[0153] 73121. Determine whether the number of available power units of the target is greater than or equal to the number of adjacent available power units.

[0154] The target available power unit is the available power unit in the target power unit group, and the adjacent available power unit is the available power unit in the adjacent power unit group.

[0155] 73122. If so, the maximum available coupling power is determined based on the number of adjacent available power units and the preset power supply value of each adjacent available power unit.

[0156] 73123. If not, the maximum available coupling power is determined based on the number of target available power units and the preset power supply value of each adjacent available power unit.

[0157] Understandably, since there is a one-to-one coupling between the target available power unit and its adjacent available power units, the maximum available coupling power is determined based on the number of adjacent available power units when the number of target available power units is greater than or equal to the number of adjacent available power units; conversely, the maximum available coupling power is determined based on the number of target available power units when the number of target available power units is less than the number of adjacent available power units. Specifically, the maximum available coupling power is obtained by multiplying the number of target available power units or adjacent available power units by the preset power supply value of the adjacent power units.

[0158] In some embodiments, obtaining target switching information based on the maximum available coupling power and the total available power of the target power unit group includes the following steps:

[0159] S73131. Determine whether the sum of the maximum available coupling power and the total available power of the target power unit group is greater than or equal to the specified power;

[0160] S73132, If so, then generate the target switch quantity information;

[0161] S73133. If not, then generate scheduling switching information based on the maximum available coupling power and the total available power of the target power unit group.

[0162] In this step, the scheduling switch information is used to instruct at least one of the target power unit group and the adjacent power unit group to open the switch, so as to increase at least one of the maximum available coupling power and the total available power of the target power unit group.

[0163] In this step, the switch matrix unit that performs the switching operation according to the scheduling switch quantity information in the target power unit group and the adjacent power unit group is the scheduling switch matrix unit.

[0164] Understandably, when the sum of the maximum available coupling power and the total available power of the target power unit group is greater than or equal to the specified power, the output power of the target switch matrix unit can meet the charging needs of the target charging vehicle under any circumstances.

[0165] Because the output power of other switching matrix units used to charge other charging vehicles is not constant—for example, when the battery charge is low, the charging vehicle can accept a higher charging power, but as the charge increases, the maximum power accepted will decrease to avoid overcharging and overheating—the scheduling switching matrix unit can disconnect some selected power units when the sum of the maximum available coupling power and the total available power of the target power unit group is less than the specified power. This provides more available power units to the target switching matrix unit, ensuring that the sum of the maximum available coupling power and the total available power of the target power unit group is greater than or equal to the specified power.

[0166] Furthermore, when the maximum available coupling power is less than the total available power of adjacent power unit groups, there are idle available power units that cannot be utilized by the target switch matrix unit through coupling. The equipment controller generates scheduling switch signals and target switch information respectively, causing the scheduling switch matrix unit to disconnect some power units in the target power unit group, and causing the scheduling switch matrix unit to select idle available power units in adjacent power unit groups through the target coupling switch matrix. This allows the target switch matrix unit to select more available power units in the target power unit group, that is, the total available power in the target power unit group will increase, and the sum of the maximum available coupling power and the total available power of the target power unit group will increase.

[0167] Please see Figure 9For example, the adjacent available power units in adjacent power unit group 211b are power units numbered 1, 2, and 3. The first switch matrix unit in target power unit group 211a is target switch matrix unit 2112a, and the target available power units are power units numbered 1 and 2. The second switch matrix unit selects and occupies power units numbered 3 and 4, causing target coupling switch matrix 212a to only close switches numbered 1 and 2, so that power units numbered 1 and 2 are coupled one-to-one between adjacent power unit group 211b and target power unit group 211a. Power unit number 3 in adjacent power unit group 211b remains idle. The power sources that target switch matrix unit 2112a can obtain are: adjacent available power units numbered 1 and 2, and target available power units numbered 1 and 2.

[0168] Please see Figure 10 The second switch matrix unit in the target power unit group 211a is designated as the scheduling switch matrix unit 2112b. The device controller generates scheduling switch quantity information "0-100-10-01" and target switch quantity information "1-011-01". This causes the switch controller corresponding to the scheduling switch matrix unit 2112b to disconnect switch number 4 according to the scheduling switch quantity information, and causes the switch controller corresponding to the target coupling switch matrix 212a to close switch number 3 according to the target switch quantity information. At this time, the scheduling switch matrix unit 2112b obtains the coupled power of the power unit with power number 3 in the adjacent power unit group 211b through the target coupling matrix. The total output power remains unchanged, but the target available power unit with switch number 4 is provided to the target switch matrix unit 2112a. Therefore, the power sources that the target switch matrix unit 2112a can obtain are: the adjacent available power units with power numbers 1 and 2, and the target available power units with power numbers 1, 2, and 4. Understandably, through the above scheduling operations, the number of available power units that the target switch matrix unit 2112a can utilize increases, and the situation where adjacent available power units are idle is avoided. It should be noted that the power unit scheduling process executed by the scheduling switch matrix unit 2112b based on the scheduling switch quantity information can precede the power unit selection process of the target switch matrix unit 2112a and the target coupled switch matrix 212a, or it can run in parallel with the power unit selection process of the target switch matrix unit 2112a and the target coupled switch matrix 212a; there is no restriction here.

[0169] In some embodiments, generating target switch quantity information includes the following steps:

[0170] S731321. Obtain target coupling association information and adjacent coupling association information.

[0171] In this step, the coupling association information includes the switch numbers of each switch on the target coupling matrix that connects to the target available power unit, and the adjacency coupling association information includes the switch numbers of each switch on the target coupling matrix that connects to adjacent available power units.

[0172] Please review Figure 9 For example, there are two adjacent available power units, with power numbers 1 and 2 respectively. The switch numbers of the switches connected to the target coupling switch matrix 212a and the adjacent available power units are switch numbers 1 and 2 respectively. Then the adjacent coupling association information includes switch number 1 and switch number 2. The target coupling association information is similar.

[0173] S731322. Determine the switch number that simultaneously belongs to both the target coupling association information and the adjacent coupling association information as the target switch number.

[0174] For example, if the target coupling association information includes switch number 1 and switch number 2, and the adjacent coupling association information includes switch number 2 and switch number 3, then the target switch number can be determined to be switch number 3.

[0175] S731323. Generate target switch quantity information based on all target switch numbers.

[0176] Understandably, when the sum of the power of all adjacent available power units connected to the target switch number, plus the total available power of the target power unit, meets the specified power, the target switch quantity information is used to indicate the closing of the target switch number of the target coupling switch matrix 212a.

[0177] In some embodiments, generating target switch quantity information based on all target switch numbers includes the following steps:

[0178] S7313231. Determine whether the sum of the existing available coupling power and the total available power of the target power unit group is greater than or equal to the specified power.

[0179] In this step, the available coupling power is the sum of the power of the adjacent available power units corresponding to all target switch numbers. It can be understood that the available coupling power is the available power in adjacent power unit group 211b that can be obtained by directly closing the switch with the target switch number in the target coupling switch matrix.

[0180] S731323. If so, generate target switch quantity information based on all target switch numbers.

[0181] S731323. If not, then generate switching information based on the existing available coupling power and the total available power of the target power unit group.

[0182] In this step, the switching quantity information is used to instruct at least one of the target power unit group and the adjacent power unit group to switch, thereby increasing the existing available coupling power. The switch matrix unit in the target power unit group and the adjacent power unit group that is switched according to the switching quantity information is the switching matrix unit.

[0183] Please see Figure 11 For example, assuming the required maximum available coupling power is 80kW, the target coupling association information includes switch number 1 and switch number 2, and the adjacent coupling association information includes switch number 2 and switch number 6, then the target switch number is switch number 2, and the existing available coupling power is 40kW. Simultaneously, in target power unit group 211a, the third switch matrix unit selects the power unit with power number 6; in adjacent power unit group 211b, the second switch matrix unit selects the power unit with power number 1. At this point, the sum of the existing available coupling power and the total available power of target power unit group 211a cannot meet the specified power requirement.

[0184] Please see Figure 12 Using the third switch matrix unit in target power unit group 211a as the switching matrix unit, the device controller generates switching quantity information "1-01-11-01" and "0-110-11-01", causing the switch controller corresponding to switching matrix unit 2112c to select power unit with power number 1 and disconnect power unit with power number 6 based on the switching quantity information. Then, the target switch numbers are switch number 2 and switch number 6, increasing the existing available coupling power to 80kW. Alternatively, the control module generates switching quantity information to cause the second switch matrix unit in adjacent power unit group 211b to select power unit with power number 6 and disconnect power unit with power number 1. Then, the target switch numbers are switch number 1 and switch number 2, and the existing available coupling power can also be increased to 80kW.

[0185] Understandably, when the existing available coupling power cannot meet the demand, this embodiment generates switching switch quantity information to enable the switch matrix units in the target power unit group 211a and adjacent power unit group 211b, excluding the target switch matrix unit 2112a, to switch the selected power units. Furthermore, as the number of target switch numbers increases, the number of adjacent available power units that can be utilized also increases accordingly, so that the sum of the existing available coupling power and the total available power of the target power unit group 211a meets the demand.

[0186] It should be noted that in the above embodiments, there is no necessarily a certain order between the steps. Those skilled in the art can understand from the description of the embodiments of this application that the above steps may have different execution orders in different embodiments, that is, they may be executed in parallel or in turn, etc.

[0187] As another aspect of the embodiments of this application, this application provides a control device for a charging host. A charging host includes at least two power unit groups, at least one coupling switch matrix, and a control module. Each power unit group includes at least two switch matrix units and at least two power units. Each switch matrix unit includes at least two switches connected in parallel and respectively assigned switch numbers.

[0188] Each coupling switch matrix includes at least two switches connected in parallel and assigned switch numbers. At least two power unit groups are coupled through the coupling switch matrix, and switches with the same switch number but belonging to the coupling switch matrix or switch matrix unit are electrically connected to the bus of the same power unit. The control module is connected to each switch matrix unit and each coupling switch matrix. The control device of the charging host can be a software module, which includes several instructions stored in a memory. The processor can access the memory, call the instructions, and execute them to complete the power distribution method of the charging host described in the above embodiments.

[0189] In some embodiments, the control device of the charging host can also be built from hardware devices. For example, the control device of the charging host can be built from one or more chips, which can work together to complete the power distribution method described in the various embodiments above. As another example, the control device of the charging host can also be built from various logic devices, such as general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), microcontrollers, ARM (Acorn RISC Machine) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of these components.

[0190] Please see Figure 13 The control device 1300 of the charging host includes a first judgment module 1301, a second judgment module 1302 and a control module 1303.

[0191] The first judgment module 1301 is used to respond to a power allocation command and determine whether the total available power of the target power unit group is greater than or equal to the specified power. The target power unit group is a power unit group among at least two power unit groups, and the switch matrix unit in the target power unit group that matches the power allocation command is the target switch matrix unit. The second judgment module 1302 is used to determine whether the target power unit group is associated with adjacent power unit groups when the total available power of the target power unit group is greater than or equal to the specified power. The adjacent power unit group is a power unit group that is coupled to the target power unit group through a target coupling switch matrix, and the target coupling switch matrix is ​​a coupling switch matrix among at least one coupling switch matrix. The control module 1303 is used to control the target coupling switch matrix according to the total available power of the target power unit group and the total available power of the adjacent power unit groups when the total available power of the target power unit group is less than the specified power, so that the target switch matrix unit can output the specified power.

[0192] This application embodiment connects power unit groups via a coupling switch matrix. In this circuit topology, it first determines whether the total available power of the target power unit group meets the specified power associated with the power allocation command. If the specified power is not met, it determines whether the target power unit group has adjacent power unit groups. By coupling the available power of the target power unit group and the available power of adjacent power unit groups, the specified power is met. Therefore, this application embodiment, through the above power allocation method, improves the overall power allocation flexibility of the charging host, increases the utilization rate of idle power units, and allows for greater output power through coupling between power unit groups, thereby meeting the high-power charging needs of the target charging vehicle.

[0193] In some embodiments, the second determination module 1302 is specifically used to: obtain coupling configuration information, which is used to record the coupling relationship between all power unit groups; determine the target coupling switch matrix according to the coupling configuration information and the target power unit group; and traverse and search the power unit groups connected by the target coupling switch matrix to obtain the adjacent power unit groups.

[0194] In some embodiments, the control module 1303 is specifically configured to: generate target switching information based on the total available power of the target power unit group and the total available power of adjacent power unit groups, wherein the target switching information is used to indicate the selection of the corresponding switch in the target coupling switch matrix; and control the target coupling switch matrix to perform switching operations based on the target switching information.

[0195] In some embodiments, the control module 1303 is further specifically configured to: acquire target power idle information and adjacent power idle information, wherein the target power idle information is used to record available power units in the target power unit group and the adjacent power idle information is used to record available power units in the adjacent power unit group; determine the maximum available coupling power of the adjacent power unit group based on the target power idle information and the adjacent power idle information, wherein the maximum available coupling power is the maximum power in the adjacent power unit group that can be used to couple with the target power unit group; and generate target switching information based on the maximum available coupling power and the total available power of the target power unit group.

[0196] In some embodiments, the control module 1303 is further configured to: acquire switch state reference information, the switch state reference information including the switch number and state of each switch in each switch matrix unit except the target switch matrix unit in the target power unit group and the adjacent power unit group; determine power association information, the power association information being used to represent the binding relationship between the switch and the power unit in each switch matrix unit; and obtain target power idle information and adjacent power idle information based on the switch state reference information and the power association information.

[0197] In some embodiments, the control module 1303 is further configured to: determine whether the number of target available power units is greater than or equal to the number of adjacent available power units, wherein the target available power unit is an available power unit in the target power unit group, and the adjacent available power unit is an available power unit in the adjacent power unit group; if yes, then determine the maximum available coupling power based on the number of adjacent available power units and the preset power supply value of each adjacent available power unit; if no, then determine the maximum available coupling power based on the number of target available power units and the preset power supply value of each adjacent available power unit.

[0198] In some embodiments, the control module 1303 is further configured to: determine whether the sum of the maximum available coupling power and the total available power of the target power unit group is greater than or equal to a specified power; if yes, generate target switching information; if no, generate scheduling switching information based on the maximum available coupling power and the total available power of the target power unit group, the scheduling switching information being used to instruct at least one of the target power unit group and the adjacent power unit group to disconnect, so as to increase at least one of the maximum available coupling power and the total available power of the target power unit group.

[0199] In some embodiments, the control module 1303 is further configured to: acquire target coupling association information and adjacent coupling association information, wherein the coupling association information includes the switch number of each switch connected to the target available power unit on the target coupling matrix, and the adjacent coupling association information includes the switch number of each switch connected to the adjacent available power unit on the target coupling matrix; determine the switch number that simultaneously belongs to both the target coupling association information and the adjacent coupling association information as the target switch number; and generate target switch quantity information based on all target switch numbers.

[0200] In some embodiments, the control module 1303 is further configured to: determine whether the sum of the existing available coupling power and the total available power of the target power unit group is greater than or equal to a specified power, wherein the existing available coupling power is the sum of the power of the adjacent available power units corresponding to all target switch numbers; if yes, generate target switch quantity information based on all target switch numbers; if no, generate switching switch quantity information based on the existing available coupling power and the total available power of the target power unit group, wherein the switching switch quantity information is used to instruct at least one of the target power unit group and the adjacent power unit group to switch to increase the existing available coupling power.

[0201] It should be noted that the control device 1300 of the charging host described above can execute the power distribution method provided in the embodiments of this application, and has the corresponding functional modules and beneficial effects for executing the method. Technical details not described in detail in the embodiments of the control device 1300 of the charging host can be found in the power distribution method provided in the embodiments of this application.

[0202] See Figure 14 , Figure 14 This is a schematic diagram of the structure of a computer device 1400 provided in an embodiment of this application, wherein the computer device 1400 is a control module of a charging host. The computer device 1400 includes one or more processors 1401 and a memory 1402. The memory 1402 is connected to one or more processors 1401, for example, via a bus.

[0203] Processor 1401 is configured to support the computer device in performing the corresponding functions in the methods described in the above method embodiments. Processor 1401 may be a central processing unit (CPU), a network processor (NP), a hardware chip, or any combination thereof. The aforementioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The aforementioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

[0204] Memory 1402 is used to store program code, etc. Memory may include volatile memory (VM), such as random access memory (RAM); memory may also include non-volatile memory (NVM), such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid-state drive (SSD); memory 1402 may also include combinations of the above types of memory.

[0205] The memory 1402 can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the program instructions / modules corresponding to the power allocation method in the embodiments of this application. The processor 1401 executes various functional applications and data processing of the power allocation method and the control device of the charging host by running the non-volatile software programs, instructions, and modules stored in the memory 1402, that is, it realizes the functions of each module or unit of the power allocation method and the control device of the charging host provided in the above method embodiments.

[0206] The memory 1402 may include a program storage area and a data storage area, wherein the program storage area may store the operating system and applications required for at least one function. The data storage area may store data created based on the use of the charging host's control device. In some embodiments, the memory 1402 may optionally include memory remotely located relative to the processor 1401, and this remote memory may be connected to the charging host's control device via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0207] One or more modules are stored in memory 1402. When executed by one or more processors 1401, they perform the power allocation method in any of the above method embodiments. For example, they perform the method steps described in the above method embodiments to realize the functions of the modules described in the above device embodiments.

[0208] This application also provides a computer-readable storage medium storing a computer program, the computer program including program instructions, which, when executed by a computer, cause the computer to perform the method as described in the foregoing embodiments.

[0209] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0210] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A power distribution method for a charging host, characterized in that, The charging host includes at least two power unit groups, at least one coupling switch matrix, and a control module. Each power unit group includes at least two switch matrix units and at least two power units. Each switch matrix unit includes at least two switches connected in parallel and assigned switch numbers. Each coupling switch matrix includes at least two switches connected in parallel and assigned switch numbers. The at least two power unit groups are coupled through the coupling switch matrix. Switches with the same switch number but belonging to different coupling switch matrices or switch matrix units are electrically connected to the busbar of the same power unit. The power distribution method includes: In response to a power allocation command, determine whether the total available power of the target power unit group is greater than or equal to the specified power. The target power unit group is a power unit group among at least two power unit groups. The switch matrix unit in the target power unit group that matches the power allocation command is the target switch matrix unit. If not, then determine whether the target power unit group has an adjacent power unit group. The adjacent power unit group is the power unit group that is coupled to the target power unit group through a target coupling switch matrix. The target coupling switch matrix is ​​a coupling switch matrix in at least one coupling switch matrix. If present, the target coupling switch matrix is ​​controlled according to the total available power of the target power unit group and the total available power of the adjacent power unit group, so that the target switch matrix unit can output the specified power. Wherein, when the sum of the maximum available coupling power and the total available power of the target power unit group is less than the specified power, scheduling switch information is generated. The maximum available coupling power is the maximum power in the adjacent power unit group that can be used to couple with the target power unit group. The scheduling switch information is used to instruct at least one of the target power unit group and the adjacent power unit group to disconnect, so as to increase at least one of the maximum available coupling power and the total available power of the target power unit group.

2. The power distribution method according to claim 1, characterized in that, The step of controlling the target coupling switch matrix based on the total available power of the target power unit group and the total available power of the adjacent power unit groups includes: Target switching information is generated based on the total available power of the target power unit group and the total available power of the adjacent power unit groups. The target switching information is used to indicate the selection of the corresponding switch in the target coupling switch matrix. The target coupling switch matrix is ​​controlled to perform switching operations based on the target switching quantity information.

3. The power distribution method according to claim 2, characterized in that, The step of generating target switching information based on the total available power of the target power unit group and the total available power of the adjacent power unit groups includes: Obtain target power idle information and adjacent power idle information. The target power idle information is used to record the available power units in the target power unit group, and the adjacent power idle information is used to record the available power units in the adjacent power unit group. The maximum available coupling power of the adjacent power unit group is determined based on the target power idle information and the adjacent power idle information; The target switching information is generated based on the maximum available coupling power and the total available power of the target power unit group.

4. The power distribution method according to claim 3, characterized in that, The acquisition of target power idle information and adjacent power idle information includes: Obtain switch status reference information, which includes the switch number and status of each switch in each switch matrix unit except the target switch matrix unit in the target power unit group and the adjacent power unit group; Determine power association information, which is used to represent the binding relationship between the switches in each of the switch matrix units and the power units; Based on the switch state reference information and the power association information, the target power idle information and the adjacent power idle information are obtained.

5. The power distribution method according to claim 3, characterized in that, The step of determining the maximum available coupling power of the adjacent power unit group based on the target power idle information and the adjacent power idle information includes: Determine whether the number of target available power units is greater than or equal to the number of adjacent available power units, wherein the target available power unit is the available power unit in the target power unit group, and the adjacent available power unit is the available power unit in the adjacent power unit group; If so, the maximum available coupling power is determined based on the number of adjacent available power units and the preset power supply value of each adjacent available power unit; If not, the maximum available coupling power is determined based on the number of the target available power units and the preset power supply value of each of the adjacent available power units.

6. The power distribution method according to claim 5, characterized in that, The step of obtaining the target switching quantity information based on the maximum available coupling power and the total available power of the target power unit group includes: Determine whether the sum of the maximum available coupling power and the total available power of the target power unit group is greater than or equal to the specified power; If so, then generate the target switch quantity information; If not, the scheduling switching information is generated based on the maximum available coupling power and the total available power of the target power unit group.

7. The power distribution method according to claim 6, characterized in that, The generation of the target switch quantity information includes: Obtain target coupling association information and adjacent coupling association information. The coupling association information includes the switch number of each switch on the target coupling switch matrix that connects to the target available power unit. The adjacent coupling association information includes the switch number of each switch on the target coupling switch matrix that connects to the adjacent available power unit. The switch number that simultaneously belongs to both the target coupling association information and the adjacent coupling association information is determined to be the target switch number; The target switch quantity information is generated based on all the target switch numbers.

8. The power distribution method according to claim 7, characterized in that, The step of generating the target switch quantity information based on all the target switch numbers includes: Determine whether the sum of the existing available coupling power and the total available power of the target power unit group is greater than or equal to the specified power, wherein the existing available coupling power is the sum of the power of the adjacent available power units corresponding to all the target switch numbers; If so, generate the target switch quantity information based on all the target switch numbers; If not, then switching information is generated based on the existing available coupling power and the total available power of the target power unit group. The switching information is used to instruct at least one of the target power unit group and the adjacent power unit group to switch to increase the existing available coupling power.

9. The power distribution method according to claim 1, characterized in that, The step of determining whether the target power unit group has an adjacent power unit group includes: Obtain coupling configuration information, which is used to record the coupling relationship between all the power unit groups; The target coupling switch matrix is ​​determined based on the coupling configuration information and the target power unit group; The power unit groups connected by the target coupled switch matrix are traversed and searched to obtain the adjacent power unit groups.

10. A charging host, characterized in that, include: At least two power unit groups, each power unit group including at least two switch matrix units and at least two power units, each switch matrix unit including at least two switches connected in parallel and respectively assigned switch numbers; At least one coupling switch matrix, each of the coupling switch matrices comprising at least two switches connected in parallel and respectively assigned switch numbers, at least two power unit groups being coupled through the coupling switch matrix, and switches with the same switch number but belonging to the coupling switch matrix or the switch matrix unit being electrically connected to the bus of the same power unit; as well as A control module is provided, which is connected to each of the switch matrix units and each of the coupling switch matrices. The control module includes a memory and a processor. The memory is connected to the processor, which executes one or more computer programs stored in the memory. When the processor executes the one or more computer programs, it causes the control module to implement the power distribution method as described in any one of claims 1-9.

11. A charging device, characterized in that, include: Charging terminal; as well as The charging host as described in claim 10 is electrically connected to the charging terminal.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, the computer program including program instructions that, when executed by a processor, cause the processor to perform the method as described in any one of claims 1-9.

Images