Arbitrary module granularity grouping configuration of charging system

Abstract

The utility model relates to the field of charging, and discloses a random module granularity grouping configuration of a charging system, which comprises charging module groups, a power manager and a charging control unit, the charging module groups are connected into a linear shape or a ring shape through a direct current switch, preferably, one charging gun is connected at an interval of one charging module group, and the power manager is connected with the charging control unit. The direct current switches are divided into real switches and virtual switches, the real switches separate the charging modules by groups, the virtual switches are inserted between the real switches, and the power manager is used for monitoring the charging modules and the direct current switches and interacting the power scheduling process with the charging control unit, the charging control unit communicates with the charging gun, and the output direct current switch is monitored. The utility model has the following advantages and effects: the design of the number of modules and the number of groups can be quickly realized through simple software configuration so as to meet the requirements of different customers, the number of switches can be reduced, the cost of the high-power charger can be optimized, and the conversion efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging, and in particular to an arbitrary module granularity grouping configuration of a charging system. Background Art

[0002] For the existing ring topology, charging modules are generally evenly configured, that is, the number of modules in each group is the same, and the number of groups is generally an even number.

[0003] If the number of modules in each group is 1, when high-power charging is required, more groups are needed, which will inevitably increase the number of switches and increase costs. If the number of modules in each group is not 1, it can better meet the needs of high-power charging, but the modules are usually called by group when power is allocated. In this way, when the charging demand changes, it is difficult to realize the call of a single module, which is not conducive to seeking the optimal conversion efficiency output. Utility Model Content

[0004] The purpose of this utility model is to provide a charging system with arbitrary module granularity grouping configuration. Through simple software configuration, the design of the number of modules and the number of groups can be quickly realized to meet the needs of different customers, and the number of switches can be reduced, the cost of high-power chargers can be optimized, and the conversion efficiency can be improved.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: including a charging module group, a power manager and a charging control unit, the charging module group is connected in a straight line or a ring through a DC switch, preferably a charging gun is connected every other charging module group, the DC switch is divided into a real switch and a virtual switch, the real switch separates the charging modules into groups, and the virtual switch is inserted between the real switches, the power manager is used to monitor the charging module and the DC switch, and interact with the charging control unit in the power scheduling process, the charging control unit communicates with the charging gun, and monitors the output DC switch.

[0006] The present invention is further configured as follows: the charging module groups are connected into multiple rings via DC switches, and the multiple rings are connected via real switches.

[0007] The present invention is further configured as follows: the charging gun searches for the charging modules in the order from near to far, and releases the charging modules in the order from far to near.

[0008] The present invention is further configured as follows: if the charging module groups are connected in a ring shape, the charging module groups connected to the charging guns are connected diagonally via real switches.

[0009] The present invention is further configured as follows: if the charging module group is connected in a ring shape, the charging terminal searches for the charging module in the order of first the ring shape and then the diagonal shape, and then searches for the charging module on the opposite ring shape.

[0010] The present invention is further configured as follows: each output path is connected to a charging gun via a DC switch, so as to control the output of the charging gun path.

[0011] The beneficial effects of the utility model are:

[0012] Through simple software configuration, the number of modules and groups can be quickly designed, and the flexible configuration of the whole machine power and module grouping can be realized quickly and easily to meet different customer needs. It can also reduce the number of switches, optimize the cost of high-power chargers, and improve conversion efficiency.

[0013] 2. Configure the desired grouping design through virtual switches and real switches. Modify the configuration through the program to match the grouping design of the charging system. It is universal for any grouping design, achieving fast and flexible design.

[0014] 3. Adding virtual switches effectively increases the number of groups without increasing costs;

[0015] 4. The minimum allocation granularity that can be achieved is 1 module, and the maximum allocation granularity is the maximum number of modules in a configured single group, which not only meets the charging power requirements but also enables the charging module to operate at a higher efficiency point. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0018] Figure 2 It is a structural diagram of embodiment 2 of the present invention.

[0019] Figure 3 It is a structural diagram of embodiment 3 of the present invention. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention. Example

[0021] according to Figure 1 According to the designed grouping, the charging modules and their groups, DC switches, and nodes are configured in the program.

[0022] The charging module is configured into 6 groups gr0~gr5, namely M0, M1, M2, M3, M4, and M5.

[0023] The DC switches used for power distribution are configured into five groups (including positive and negative poles), R0 through R4. R0 and R3 are virtual switches, while R1, R2, and R4 are real switches. Each switch is bound to the nodes on its left and right. The corresponding binding relationships are R0-(N0, N1), R1-(N1, N2), R2-(N2, N3), R3-(N3, N4), and R4-(N4, N5).

[0024] The five DC switches R0 to R4 connect the six module groups into a chain structure. If a real switch R5 is added to bind the node (N5, N0), the six charging module groups are connected into a ring structure.

[0025] Originally, M0 and M1 were electrically connected to the same group. However, with the virtual switch R0, M0 can be configured as gr0 and M1 as gr1, with each module configured as a separate group. The power manager PMC can then "virtually control" R0's "opening / closing" (it remains "closed" in reality), effectively implementing single-module scheduling for M0 and M1, with an allocation granularity of 1. Conversely, if R0 is not configured, M0 and M1 must be in the same group, and the granularity for group allocation is 2. The same applies to M4 and M5.

[0026] There are two charging guns, gun 1 and gun 2. Gun 1 connects to node N0, which is bound to gr0 and gr1. Gun 2 connects to node N3, which is bound to gr3 and gr4. Gr2 and gr5 are redundant module groups.

[0027] The charging gun is equipped with DC switches R01 and R02 to control the output of the charging gun circuit. Example

[0028] according to Figure 2 According to the designed grouping, the charging modules and their groups, DC switches, and nodes are configured in the program.

[0029] In conventional grouping design, the charging modules are configured into 8 groups gr0~gr7, namely M0, M1, M2, M3, M4, M5, M6, and M7.

[0030] The DC switches for power distribution are configured into 10 groups (including positive and negative poles), namely R0 to R8 and R10. R0 to R7 are connected end-to-end in a ring structure, separating each group of modules. R8 and R10 connect the nodes connected to the charging connector diagonally. In this case, R9 is treated as a blank in the program (not shown). Each switch is bound to the nodes on its left and right. The corresponding binding relationships for the ring are R0-(N0, N1), R1-(N1, N2), R2-(N2, N3), ... R7-(N7, N0); the corresponding binding relationships for the diagonal are R8-(N0, N4) and R10-(N2, N6).

[0031] Four charging guns are configured: Gun 1, Gun 2, Gun 3, and Gun 4. Each interval is preferably connected by a module group. Gun 1 is bound to gr0, Gun 2 is bound to gr2, Gun 3 is bound to gr4, and Gun 4 is bound to gr6. The remaining module groups are redundant. If more than four charging guns are required, reduce the interval modules and add diagonal connections at the additional charging gun connections.

[0032] The charging gun is equipped with DC switches R01, R02, R03, and R04, which are used to control the output of the charging gun circuit.

[0033] If the design needs to increase the number of modules, you can insert a virtual switch in the group of added modules, such as Figure 2 If you only increase the number of modules in a group without adding virtual switches, such as gr8, the group allocation granularity is 2. You only need to modify the corresponding group configuration to complete the program design. Example

[0034] according to Figure 3 According to the grouping situation designed in the program, the charging module and its grouping, DC switch, and nodes are configured in the program.

[0035] The left and right sides form a mirrored structure, and the topology of each side is the same as that of Example 2, and the configuration method is also the same as that of Example 2.

[0036] The two topological structures on the left and right are configured in the 0# power stack and the 1# power stack respectively, so as to expand the power stack.

[0037] The middle bridge switches R11, R33, R55, and R77 respectively connect the redundant module group nodes of the two power stacks to each other, and are configured into a binding relationship with their connection nodes: R11-(N1, n1), R33-(N3, n3), R55-(N5, n5), and R77-(N7, n7).

[0038] Similarly, if there is a design that requires increasing the number of modules, a virtual switch can be inserted into the group of added modules. The program design can be completed by simply modifying the corresponding group configuration.

[0039] Due to the addition of the mirror structure, the overall power and the number of charging guns have doubled, and the distribution flexibility has also been enhanced, which is suitable for the design of flexible distribution of high-power charging stacks.

Claims

1. A charging system with arbitrary module granularity grouping configuration, characterized by: The system includes a charging module group, a power manager, and a charging control unit. The charging module groups are connected in a straight line or ring shape through DC switches. Each charging module group is connected to a charging gun. The DC switches are divided into real switches and virtual switches. The real switches separate the charging modules into groups, and the virtual switches are inserted between the real switches. The power manager is used to monitor the charging modules and DC switches and interact with the charging control unit during the power scheduling process. The charging control unit communicates with the charging gun and monitors the output DC switch. The charging modules are configured into six groups, gr0 to gr5, namely M0, M1, M2, M3, M4, and M5. The DC switches for power distribution are configured into five groups, namely R0 to R4. R0 and R3 are virtual switches, and R1, R2, and R4 are real switches. Each switch binds the nodes on its left and right sides. The corresponding binding relationships are R0-(N0, N1), R1-(N1, N2), R2-(N2, N3), R3-(N3, N4), and R4-(N4, N5). The five DC switches R0 to R4 connect the six module groups into a chain structure. If a real switch R5 is added and bound to the node (N5, N0), the six charging module groups are connected in a ring structure. Originally, M0 and M1 are the same group in terms of electrical connection. Due to the configuration of the virtual switch R0, M0 can be configured as gr0 and M1 as gr1. Each module is configured as a group separately. Therefore, the power manager PMC can "virtually control" the "opening / closing" of R0, thereby equivalently realizing single-module scheduling of M0 and M1, and the allocation granularity is 1. Conversely, if R0 is not configured, M0 and M1 must be the same group, and the granularity when performing the group allocation is 2.

2. The arbitrary module granularity grouping configuration of the charging system according to claim 1, characterized in that: The charging module groups are connected into multiple rings through DC switches, and the multiple rings are electrically connected through real switches.

3. The arbitrary module granularity grouping configuration of the charging system according to claim 1, characterized in that: The charging gun searches for the charging module in the order from near to far, and releases the charging module in the order from far to near.

4. The arbitrary module granularity grouping configuration of the charging system according to claim 1, characterized in that: If the charging module groups are connected in a ring shape, the charging module groups connected to the charging guns are connected diagonally via real switches.

5. The arbitrary module granularity grouping configuration of the charging system according to claim 1, characterized in that: If the charging module group is connected in a ring shape, the charging terminal searches for the charging module in the order of first the ring shape and then the diagonal shape, and then searches for the charging module on the opposite ring shape.

6. The arbitrary module granularity grouping configuration of the charging system according to claim 1, characterized in that: Each output channel is connected to a charging gun through a DC switch to control the output of the charging gun channel.

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