Matrix type charging scheduling system, method and device

Abstract

The invention discloses a matrix type charging scheduling system, method and device. The system comprises a charging gun, a charging module and a controller. The controller is used for continuously obtaining the charging demand power of the vehicle and dynamically controlling the number of the charging modules connected with the charging gun according to the charging demand power. The charging gun comprises a first type charging gun and a second type charging gun, and the maximum connection charging module number of the first type charging gun is smaller than the maximum connection charging module number of the second type charging gun. In the actual scheduling process, waste of a hardware structure is avoided, the cost is reduced, when the charging gun / charging module is expanded, connection of all the charging modules / charging guns is not needed, and operation is easier and more flexible. The system can be compatible with many similar products on the market, and flexibility and low cost are achieved on the basis of the similar products.

Description

Technical Field

[0001] The present application relates to the field of automobile charging technology, and in particular to a system, method and device for matrix charging scheduling. Background Art

[0002] With the development of the new energy vehicle industry, charging technology is crucial. The matrix power scheduling method transmits the power output by the charging module to the car battery through the charging modules and charging guns connected in a matrix, realizes the flexible scheduling and efficient use of multiple charging modules, and improves the charging capacity and service quality of the charging station. The matrix power scheduling method can receive the charging power demand of the car, count the idle charging module groups, and schedule the charging module groups according to the strategy to meet the charging power demand of the car.

[0003] The existing matrix charging pile power scheduling method, when facing high-power charging (charging piles above 1000kW) and split charging with more than 12 charging guns, has too many charging guns and charging modules, high maintenance and vacancy costs, and cannot be flexibly increased or decreased. Therefore, how to reduce the cost of charging stations and realize power scheduling more flexibly in high-power, multi-gun charging scenarios has become an urgent problem to be solved. Summary of the invention

[0004] Based on the above problems, the present application provides a system, method and device for matrix charging scheduling to reduce the cost of charging stations and achieve power scheduling more flexibly in high-power, multi-gun charging scenarios.

[0005] The present application discloses a matrix charging scheduling system, the system comprising: a charging gun, a charging module and a controller;

[0006] The charging gun is used to output the current in the charging module to the vehicle; the total number of charging modules is greater than or equal to the total number of charging guns;

[0007] The controller is used to obtain the charging demand power of the vehicle and control the number of charging modules connected to the charging gun according to the charging demand power; the charging gun includes a type one charging gun and a type two charging gun, and the maximum number of connected charging modules of the type one charging gun is less than the maximum number of connected charging modules of the type two charging gun.

[0008] Optionally, the system includes a plurality of rectangular grids, each rectangular grid consisting of a row of charging guns, a column of charging modules, and connecting lines;

[0009] Each charging gun is connected to each charging module one by one through a switch arranged on the connecting line;

[0010] The controller controls the opening and closing of the switch according to the charging demand power to control the number of charging modules connected to the charging gun.

[0011] Optionally, the maximum number of connected charging modules for a type 1 charging gun is p, and the maximum number of connected charging modules for a type 2 charging gun is q;

[0012] A type of charging gun connects p charging modules through p switches;

[0013] The Type 2 charging gun connects q charging modules through q switches.

[0014] Optionally, the controller continuously obtains the required charging power through a charging gun connected to the vehicle.

[0015] Based on the above-mentioned matrix charging scheduling system, the present application also discloses a matrix charging scheduling method, which is applied to the above-mentioned system, and the method includes:

[0016] The charging power requirement of the vehicle is continuously obtained through a charging gun connected to the vehicle; the charging power requirement changes over time;

[0017] Determine the number of charging modules in real time according to the charging demand power;

[0018] Dynamically control the switch to ensure that the number of charging modules are connected to the charging gun.

[0019] Optionally, the step of ensuring that the number of charging modules are connected to the charging guns includes:

[0020] When the number is greater than the number of idle charging modules, the idle charging modules are connected to the charging guns, and the number is continuously monitored.

[0021] Optionally, the step of ensuring that the number of charging modules are connected to the charging guns includes:

[0022] When the number of the idle charging modules is 0, any charging module in use is controlled to be disconnected from the charging gun and serve as the idle charging module.

[0023] Based on the above-mentioned matrix charging scheduling method, the present application also discloses a matrix charging scheduling device, the device comprising: a monitoring unit, a module power distribution unit and a control unit;

[0024] The monitoring unit is used to continuously obtain the charging power requirement of the vehicle through a charging gun connected to the vehicle; the charging power requirement changes over time;

[0025] The module power allocation unit is used to determine the number of charging modules in real time according to the charging demand power;

[0026] The control unit is used to dynamically control the switch to ensure that the number of charging modules are connected to the charging gun.

[0027] Optionally, the control unit is further used to:

[0028] When the number is greater than the number of idle charging modules, the idle charging modules are connected to the charging guns, and the number is continuously monitored.

[0029] Optionally, the control unit is further used to:

[0030] When the number of the idle charging modules is 0, any charging module in use is controlled to be disconnected from the charging gun and serve as the idle charging module.

[0031] The present application discloses a system, method and device for matrix charging scheduling. The system includes a charging gun, a charging module and a controller. The controller is used to continuously obtain the charging demand power of the vehicle, and dynamically control the number of charging modules connected to the charging gun according to the charging demand power. The charging gun includes a type-one charging gun and a type-two charging gun, and the maximum number of connected charging modules of a type-one charging gun is less than the maximum number of connected charging modules of a type-two charging gun. In the actual scheduling process, there will be no waste of hardware structure, reducing costs, and when expanding the charging gun / charging module, there is no need to connect all charging modules / charging guns, which is easier to operate and more flexible. The system described in the present application is compatible with many similar products on the market, and achieves flexibility and low cost on the basis of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0033] Figure 1a A schematic diagram of the structure of a rectangular grid disclosed in this embodiment;

[0034] Figure 1b A schematic diagram of the structure of a matrix charging scheduling system disclosed in this embodiment;

[0035] Figure 1c A schematic diagram of the structure of another matrix charging scheduling system disclosed in this embodiment;

[0036] Figure 1d A schematic diagram of the structure of another matrix charging scheduling system disclosed in this embodiment;

[0037] Figure 1e A schematic diagram of the structure of another matrix charging scheduling system disclosed in this embodiment;

[0038] Figure 1f A schematic diagram of the structure of another matrix charging scheduling system disclosed in this embodiment;

[0039] Figure 2 A schematic diagram of a flow chart of a matrix charging scheduling method disclosed in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of the structure of a matrix charging scheduling device disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0041] In the system described in this application, the charging module (referred to as the module) is a device that converts the AC power in the power grid into DC power for charging the battery. The upstream of the charging module is mainly various components such as chips, power devices, PCBs, etc., and its downstream is the DC charging pile equipment manufacturers, operators and car companies. The charging gun (referred to as the gun) is installed on the DC charging pile, which uses the principle of current transmission to transmit the power output by the charging module to the battery of the new energy vehicle.

[0042] The full-matrix power allocation control strategy in the existing technology requires that any gun can dispatch any module, but there is a range of power requirements for the module. After the power of the charging station exceeds 1MW, each gun still dispatches all modules, resulting in redundancy in some paths and high costs. At the same time, if more guns are needed, the additional guns need to be connected to each module one by one, which is difficult to achieve. And when the number of guns is large and the power is high, the cost increases.

[0043] The system described in this application is composed of m modules and n guns (such as Figure 1a As shown in FIG. 1 , a rectangular grid block of a matrix structure is used as the basis, and various multi-mode multi-gun rectangular grid block combinations (such as Figure 1b shown).

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] Embodiment 1: The present application discloses a matrix charging scheduling system, including: a charging gun, a charging module and a controller. Among them, the charging gun is used to output the current in the charging module to the vehicle. It should be noted that the total number of charging modules is greater than or equal to the total number of charging guns. The controller is used to obtain the charging demand power of the vehicle and control the number of charging modules connected to the charging gun according to the charging demand power. In the system described in this embodiment, the charging gun includes a type one charging gun and a type two charging gun, and the maximum number of connected charging modules of the type one charging gun is less than the maximum number of connected charging modules of the type two charging gun.

[0046] The system described in this embodiment includes a plurality of rectangular grids, each of which is composed of a row of charging guns, a column of charging modules, and connecting lines. Figure 1a This is a schematic diagram of the structure of a rectangular grid disclosed in this embodiment. For details, please refer to Figure 1a , each charging gun (gun 1-n) is connected to each charging module (module 1-m) one by one through a switch set on the connecting line, and the number of switches contained in the rectangular grid is the product of m and n.

[0047] In the system described in this embodiment, as an example, when the maximum number of connected charging modules of a type-one charging gun is p and the maximum number of connected charging modules of a type-two charging gun is q, the type-one charging gun connects p charging modules through p switches and the type-two charging gun connects q charging modules through q switches. Figure 1b FIG. 1 is a schematic diagram of a matrix charging scheduling system disclosed in this embodiment. Figure 1b As shown, the type 1 charging gun can be gun 1, gun 2, gun n+1 and gun n+2, and the type 2 charging gun can be gun 3 to n. The number of charging modules connected to the type 1 charging gun is m, that is, p=m, and the number of charging modules connected to the type 2 charging gun is 2m, that is, q=2m.

[0048] Figure 1b The above content is only an example of a possible implementation method. Figure 1b The maximum number of connected charging modules in the charging guns 3 to n can also be 3m, as long as it is more than the first type of charging gun, and no specific limitation is made here.

[0049] In the system described in this embodiment, the controller can control the opening and closing of the switch according to the charging demand power to control the number of charging modules connected to the charging gun. The controller is also responsible for continuously obtaining the charging demand power through the charging gun connected to the vehicle. As a feasible way, each rectangular grid in the system described in this embodiment can be uniformly controlled by a controller. As another feasible way, each rectangular grid can also be equipped with a controller, and each controller can be connected to each other or work independently.

[0050] The system described in this embodiment supports the input and output of current, and therefore supports the vehicle-to-grid (V2G) charging gun. V2G technology uses the vehicle as a mobile energy storage device, charging during off-peak hours and discharging to the grid during peak hours, thus playing a peak-shaving role of "peak shaving and valley filling".

[0051] The system described in this embodiment, while ensuring that it can adapt to different power scheduling needs, does not absolutely constitute a rectangular matrix shape compared to the full-matrix power scheduling method commonly used in the industry. Because in the actual scheduling process, the charging gun does not need to call so many charging modules every time. Therefore, in the scenario of multiple charging modules, the system described in this embodiment can abandon the hardware structure of the corner matrix, avoid redundancy, and thus reduce costs. Moreover, when the structure of the system described in this embodiment is expanded, it is not necessary to connect it to all modules / guns one by one for each additional gun / module, and the operation is simpler and more flexible. In addition, the system described in this embodiment is also compatible with many similar products on the market, and surpasses similar products in terms of diversity and advancement, which not only improves the efficiency of power scheduling, but also provides strong support for product customization and diversification.

[0052] Embodiment 2: This application discloses another matrix charging scheduling system, please refer to Figure 1c The method described in this embodiment is introduced based on the situation of 30 modules and 12 guns:

[0053] As an example, each rectangular grid in the system described in this embodiment is 6 modules and 6 guns, 2 of which are liquid-cooled super-charging guns, and the remaining 10 are fast-charging guns. In actual working scenarios, the charging efficiency of liquid-cooled super-charging guns is higher than that of fast-charging guns. In this embodiment, as an example, the liquid-cooled super-charging gun supports more connected charging modules than the fast-charging gun. It can also be understood that the fast-charging gun is a type one charging gun, and the liquid-cooled super-charging gun is a type two charging gun. The purpose of the examples in this embodiment is only to facilitate understanding. This embodiment is for matrix charging scheduling, not charging guns. Therefore, the types of charging guns in the system of this embodiment are not specifically limited or elaborated.

[0054] In the system described in this embodiment, five rectangular grids of six modules and six guns are used to form a system of 30 modules and 12 guns by means of oblique pulling and translation. Among them, the number of connection modules of guns 3 to 8 is 18. As a feasible method, these six guns can also be equipped with liquid-cooled super-charged guns for output.

[0055] In the system described in this embodiment, the charging module connected to the charging gun can be scheduled by the controller. The controller first obtains the charging demand power of the vehicle battery management system through the charging gun. According to the charging demand power, the circuit between the charging module and the charging gun is turned on by closing the switch. As a feasible method, the controller can control the current to gradually increase until the battery charging demand is met. When other vehicles are charging at the same time, the control module uses the same strategy to schedule the charging module to charge the vehicle.

[0056] In the system described in this embodiment, the control module continuously obtains the charging power requirement of the vehicle. When the vehicle is about to be fully charged, the charging power requirement will decrease. At this time, the control module can release some charging modules and dispatch them to other charging guns in need.

[0057] The above examples are for easy understanding. In fact, this strategy can be dynamically combined into various forms to meet the diversity of needs.

[0058] Example 3: This application discloses another matrix charging scheduling system, please refer to Figure 1d , Figure 1d It is another abstract combination of rectangular grids, which includes 18 modules and 16 guns. Figure 1d In the figure, the number M on the left is the number of the charging module, and the number Q on the top is the number of the charging gun.

[0059] Accordingly, this embodiment also discloses a 48-module 16-gun matrix charging scheduling system, such as Figure 1e As shown. Accordingly, there may also be Figure 1f Here, the present application does not specifically limit the combination form of the rectangular grid.

[0060] Based on the matrix charging scheduling system disclosed in the above embodiment, this embodiment correspondingly discloses a matrix charging scheduling method. Figure 2 , a matrix charging scheduling method disclosed in this embodiment includes the following steps:

[0061] S1: Continuously obtain the charging power required by the vehicle through the charging gun connected to the vehicle.

[0062] In the method described in this embodiment, the charging demand power varies with time.

[0063] S2: Determine the number of charging modules in real time according to the required charging power.

[0064] S3: Dynamically control the switch to ensure that the specified number of charging modules are connected to the charging gun.

[0065] In the method described in this embodiment, when the number is greater than the number of idle charging modules, the idle charging modules are connected to the charging gun and the number is continuously monitored. When the number of idle charging modules is 0, any charging module in use is controlled to be disconnected from the charging gun and used as an idle charging module.

[0066] Based on the matrix charging scheduling method disclosed in the above embodiment, this embodiment correspondingly discloses a matrix charging scheduling device. Figure 3 , the matrix charging scheduling device includes: a monitoring unit 301, a module power distribution unit 302 and a control unit 303;

[0067] The monitoring unit 301 is used to continuously obtain the charging power requirement of the vehicle through a charging gun connected to the vehicle; the charging power requirement changes over time;

[0068] The module power allocation unit 302 is used to determine the number of charging modules in real time according to the charging demand power;

[0069] The control unit 303 is used to dynamically control the switch to ensure that the number of charging modules are connected to the charging gun.

[0070] Optionally, the control unit 303 is further configured to:

[0071] When the number is greater than the number of idle charging modules, the idle charging modules are connected to the charging guns, and the number is continuously monitored.

[0072] Optionally, the control unit 303 is further configured to:

[0073] When the number of the idle charging modules is 0, any charging module in use is controlled to be disconnected from the charging gun and serve as the idle charging module.

[0074] The embodiments in this specification are described in a progressive manner. As for the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the methods.

[0075] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0076] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0077] The features described in the embodiments of this specification can be replaced or combined with each other, so that professional and technical personnel in this field can implement or use the present application.

[0078] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A matrix charging scheduling system, characterized in that: Including charging gun, charging module and controller; The charging gun is used to output the current in the charging module to the vehicle; the total number of charging modules is greater than or equal to the total number of charging guns; The controller is used to obtain the charging demand power of the vehicle and control the number of charging modules connected to the charging gun according to the charging demand power; the charging gun includes a type one charging gun and a type two charging gun, and the maximum number of connected charging modules of the type one charging gun is less than the maximum number of connected charging modules of the type two charging gun.

2. The system according to claim 1, characterized in that The system includes a plurality of rectangular grids, each rectangular grid consisting of a row of charging guns, a column of charging modules, and connecting lines; Each charging gun is connected to each charging module one by one through a switch arranged on the connecting line; The controller controls the opening and closing of the switch according to the charging demand power to control the number of charging modules connected to the charging gun.

3. The system according to claim 2, characterized in that The maximum number of connected charging modules for a type 1 charging gun is p, and the maximum number of connected charging modules for a type 2 charging gun is q; A type of charging gun connects p charging modules through p switches; The Type 2 charging gun connects q charging modules through q switches.

4. The system according to claim 1, characterized in that The controller continuously obtains the required charging power through a charging gun connected to the vehicle.

5. A matrix charging scheduling method, characterized in that: Applied to the system according to any one of claims 1 to 4, the method comprises: The charging power requirement of the vehicle is continuously obtained through a charging gun connected to the vehicle; the charging power requirement changes over time; Determine the number of charging modules in real time according to the charging demand power; Dynamically control the switch to ensure that the number of charging modules are connected to the charging gun.

6. The method according to claim 5, characterized in that The step of ensuring that the number of charging modules are connected to the charging guns includes: When the number is greater than the number of idle charging modules, the idle charging modules are connected to the charging guns, and the number is continuously monitored.

7. The method according to claim 6, characterized in that The step of ensuring that the number of charging modules are connected to the charging guns includes: When the number of the idle charging modules is 0, any charging module in use is controlled to be disconnected from the charging gun and serve as the idle charging module.

8. A matrix charging scheduling device, characterized in that: include: Monitoring unit, module power distribution unit and control unit; The monitoring unit is used to continuously obtain the charging power required by the vehicle through a charging gun connected to the vehicle; The charging demand power varies with time; The module power allocation unit is used to determine the number of charging modules in real time according to the charging demand power; The control unit is used to dynamically control the switch to ensure that the number of charging modules are connected to the charging gun.

9. The device according to claim 8, characterized in that The control unit is further used for: When the number is greater than the number of idle charging modules, the idle charging modules are connected to the charging guns, and the number is continuously monitored.

10. The device according to claim 9, characterized in that The control unit is further used for: When the number of the idle charging modules is 0, any charging module in use is controlled to be disconnected from the charging gun and serve as the idle charging module.

Images