Multi-charging-module cooperative scheduling device and scheduling method

Abstract

The invention relates to the field of charging piles, and provides a multi-charging-module cooperative scheduling device and scheduling method.The scheduling device comprises a plurality of power access links, each power access link comprises a plurality of power control switches which are connected in series in an annular topological structure, a power access point is formed between every two adjacent power control switches, and each power access point comprises a plurality of charging modules; the power access point is used for connecting the charging module and the charging gun; and a plurality of cooperative control links, each cooperative control link comprising a plurality of cooperative control switches connected in series in a ring topology structure, a cooperative control point being formed between two adjacent cooperative control switches, the cooperative control points being in one-to-one correspondence with the power access links, and the cooperative control points being connected with one power access point in the corresponding power access link. According to the invention, based on mutual cooperation of the plurality of power access links and the plurality of cooperative control links, one charging gun can obtain electric energy from the plurality of charging modules according to the charging demand of the electric equipment, so that the electric equipment can be charged more efficiently.

Description

Technical Field

[0001] The present invention relates to the field of charging piles, and in particular to a multi-charging module collaborative scheduling device and a scheduling method. Background Art

[0002] A charging pile is a large power supply cluster that is specifically designed to meet large-scale charging needs in places such as large parking lots or enterprises. The charging pile can convert AC power into DC power and is equipped with multiple charging modules, which can provide services for multiple electric vehicles and other electrical equipment at the same time.

[0003] In the existing charging piles, the scheduling methods of charging modules are mainly full matrix and single ring modes. There are some shortcomings in these two scheduling modes. The full matrix charging module scheduling logic has problems such as complex logic, large number of contactors, high cost and high failure rate. The single ring charging module scheduling logic is prone to limited charging module scheduling. For example, when the left and right sides of the current charging gun are charging, the number of charging modules that the current charging gun can call will be limited, that is, the current gun can only call the charging module of the current gun node to power the electrical equipment at low power, which greatly affects the user's charging experience. Summary of the invention

[0004] In order to address the deficiencies in the prior art, the present invention provides a multi-charging module collaborative scheduling device and scheduling method. Based on the mutual coordination of multiple power access links and multiple collaborative control links, a charging gun can obtain electrical energy from multiple charging modules according to the charging needs of the electrical equipment, thereby charging the electrical equipment more efficiently.

[0005] In order to achieve the above object, the specific scheme adopted by the present invention is: a multi-charging module coordinated scheduling device, comprising: Multiple power access links, the power access link includes multiple power control switches connected in series in a ring topology, and a power access point is formed between two adjacent power control switches. The power access point is used to connect the charging module and the charging gun; A plurality of cooperative control links, the cooperative control links comprising a plurality of cooperative control switches connected in series in a ring topology structure, a cooperative control point being formed between two adjacent cooperative control switches, the cooperative control point corresponding to the power access links one by one, and the cooperative control point being connected to one of the power access points in the corresponding power access link; When the power access point is disconnected from the connected charging module, it can be switched to a cooperative control point, and when the cooperative control point is connected to the charging module, it can be switched to a power access point.

[0006] As a further optimization of the above-mentioned multi-charging module collaborative scheduling device: the device includes a state sensing mechanism, the state sensing mechanism includes a first sensing module and a second sensing module, wherein the first sensing module is used to sense the charging demand of the electrical equipment after the charging gun is connected to the electrical equipment, and the second sensing module is used to sense the working state of the charging module.

[0007] As a further optimization of the above-mentioned multi-charging module collaborative scheduling device: the device includes a switch control mechanism for controlling the power control switch and the collaborative control switch.

[0008] A method for collaborative scheduling of multiple charging modules is provided, based on the above-mentioned device for collaborative scheduling of multiple charging modules, and the method comprises the following steps: Initializing the collaborative scheduling device, and connecting a charging module and a charging gun to the power access point; Monitor the working status of all charging modules and the access status of all charging guns; When the charging gun is connected to the power-consuming device, the power access point corresponding to the charging gun is marked as the current access point, and the charging module connected to the current access point is marked as the current module; If the working state of the current module is idle, the current module is used to supply power to the charging gun; If the working status of the current module is busy, the current module is released and then used to power the charging gun.

[0009] As a further optimization of the above-mentioned multi-charging module coordinated scheduling method: when the charging gun is connected to the power access point, the charging demand of the power-consuming device is obtained; If the current module can meet the charging demand, the current module is used to supply power to the charging gun. If the current module cannot meet the charging demand, multiple power access points adjacent to the current access point are used as alternative access points, and the charging modules connected to the alternative access points are used as alternative modules. If the working status of at least one candidate module is idle, at least one candidate module is selected according to the charging demand to cooperate with the current module to jointly power the charging gun.

[0010] As a further optimization of the above-mentioned method for coordinated scheduling of multiple charging modules: the method for selecting an alternative access point includes: In the power access link where the current access point is located, selecting at least one power access point adjacent to the current access point as a candidate access point; Based on the cooperative control link, at least one power access point adjacent to the current access point is selected from other power access links as a candidate access point.

[0011] As a further optimization of the above-mentioned multi-charging module coordinated scheduling method: in the power access link where the current access point is located, two power access points adjacent to the current access point are selected as candidate access points, and the current access point is located between the two candidate access points.

[0012] As a further optimization of the above-mentioned multi-charging module collaborative scheduling method: when at least one alternative module cooperates with the current module to jointly power the charging gun, if the alternative access point and the current access point are located in the same power access link, the power control switch is used to connect the current access point and the alternative access point; if the alternative access point and the current access point are located in different power access links, the collaborative control switch is used to connect the current access point and the alternative access point.

[0013] As a further optimization of the above-mentioned method for coordinated scheduling of multiple charging modules, the method further includes the following steps: When the charging module connected to the power access point adjacent to the current access point fails, the failed power access point is switched to a collaborative control point.

[0014] Beneficial effect: Based on the mutual cooperation of multiple power access links and multiple collaborative control links, the present invention can obtain electrical energy from multiple charging modules according to the charging requirements of the electrical equipment, thereby charging the electrical equipment more efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the topological structure of the power access link and the cooperative control link; Figure 2 It is a schematic diagram of an embodiment of a collaborative scheduling device of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] like Figure 1 As shown, a multi-charging module collaborative scheduling device includes multiple power access links and multiple collaborative control links.

[0018] Multiple power access links, the power access link includes multiple power control switches connected in series in a ring topology, and a power access point is formed between two adjacent power control switches. The power access point is used to connect the charging module and the charging gun.

[0019] Multiple collaborative control links, the collaborative control link includes multiple collaborative control switches connected in series in a ring topology structure, a collaborative control point is formed between two adjacent collaborative control switches, the collaborative control point corresponds to the power access link one by one, and the collaborative control point is connected to a power access point in the corresponding power access link.

[0020] When the power access point is disconnected from the connected charging module, it can be switched to a cooperative control point, and when the cooperative control point is connected to the charging module, it can be switched to a power access point.

[0021] After the deployment of the present invention is completed, each power access point is connected to a charging module and a charging gun. When the user connects the charging gun to an electric device such as a new energy vehicle, the charging gun generates a charging demand, and then obtains electric energy from the charging module through the cooperation of the power access link and the cooperative control link and transmits it to the electric device. Specifically, the charging gun can obtain electric energy from the charging module connected to the power access point to which it is connected, and can also obtain electric energy from the charging module connected to the adjacent power access point through the power control link, and can also obtain electric energy from the charging module connected to the power access point in other power access links through the cooperative control link. By operating the power control switch, the conduction and disconnection of two adjacent power access points in the power access link can be realized. When the two adjacent power access points are turned on, the charging gun can obtain electric energy from the charging module connected to the adjacent power access point; by operating the cooperative control switch, the conduction and disconnection of power access points in different power access links can be realized. When the power access points located on two different power access links are turned on through the cooperative control switch, the charging gun can obtain electric energy from the charging modules in other power access links.

[0022] Considering that the charging module may fail after long-term use, resulting in the inability to continue to provide power, in order to still achieve power sharing between different power access links after some charging modules fail, that is, to enable the charging gun to obtain power from charging modules in other power access links, the present invention sets a switching mechanism for power access points and collaborative control points. Specifically, when a charging module connected to a power access point fails, the power access point can be recorded as a faulty power point, and the faulty power point can be switched to a collaborative control point. If a charging gun connected to another power access link needs to obtain power from a charging module connected to the faulty access point, the faulty access point switched to a collaborative control point can obtain power from the charging module corresponding to the adjacent normal power access point, ultimately ensuring that the charging gun can still be efficiently powered. After the charging module is replaced or repaired, the faulty access point can switch back from the collaborative control point to the power access point and resume normal working conditions.

[0023] Furthermore, because the power access point is originally connected to the collaborative control point, when the power access point is recorded as a faulty access point due to a fault in the connected charging module, and then switched to a collaborative control point, it will overlap with the originally connected collaborative control point. The overlapping collaborative control point will be directly adjacent to two normal power access points. At this time, the collaborative control point that was originally only able to connect to one power access point will be able to directly connect to two power access points, and accordingly, it will be able to schedule two charging modules. Therefore, the charging modules connected to some power access points in the power access link can be removed so that these power access points are switched to collaborative control points. Based on these collaborative control points, the total number of charging modules that can be scheduled by the charging gun can be increased.

[0024] Furthermore, one of the power access links can be set as the main link, and a power access link adjacent to the main link can be set as an auxiliary link. In the auxiliary link, half of the power access points are not connected to the charging module, and these power access points are directly used as collaborative control points. The power access points of the main link are connected to the collaborative control points in the auxiliary link through the collaborative control link. Based on this design, when the charging gun connected to the power access point of the main link needs to call the power access point in the auxiliary link to call the charging module, two charging modules can be called in the auxiliary link. The total number of charging modules that can be called by a charging gun increases, which can better supply power to high-power electrical equipment.

[0025] The present invention is based on the mutual cooperation of multiple power access links and multiple cooperative control links. A charging gun can obtain electric energy from multiple charging modules according to the charging needs of the electric device, thereby charging the electric device more efficiently; and, even if the charging modules of two adjacent power access points of the power access point to which the charging gun is connected are charging, electric energy can be obtained from the charging modules of the power access points of other power access links through the cooperative control link, thereby avoiding the situation of charging restriction and fully optimizing the user's charging experience.

[0026] In practical applications, the number of power access links and cooperative control links can be flexibly selected, the number of power access links is at least three, the number of power access points in each power access link is at least three, and the number of corresponding power control switches is at least three, so that a power access point is formed between two adjacent power control switches; after determining the number of power access points, the number of cooperative control links is made consistent with the number of power access points in a power access link, so that the cooperative control link can smoothly connect all power access links. More specifically, the total number of cooperative control links is consistent with the number of power access points in each power access link, and the number of cooperative control points in the cooperative control link is consistent with the total number of power access links.

[0027] In order to flexibly switch the states of the power access link and the collaborative control link according to the charging requirements of the power-consuming device, the device includes a state sensing mechanism and a switch control mechanism, and the state sensing mechanism includes a first sensing module and a second sensing module, wherein the first sensing module is used to sense the charging requirements of the power-consuming device after the charging gun is connected to the power-consuming device, the second sensing module is used to sense the working state of the charging module, and the switch control mechanism is used to control the power control switch and the collaborative control switch. The first sensing module, the second sensing module and the switch control mechanism are all prior arts in the field and will not be described in detail here.

[0028] like Figure 2 As shown, in a specific embodiment of the collaborative scheduling device of the present invention, there are N power control links. Taking the first power access link as an example, it includes three power access points, namely A1, B1 and C1, and three power control switches, namely 1K1, 1K2 and 1K3. The symbols of the power access points and power control switches in the remaining power access links are as follows: Figure 2 There are three cooperative control links. Taking the first cooperative control link as an example, it includes N cooperative control points, namely A1, A2, A3...AN, and N cooperative control switches, namely AK1, AK2, AK3...AKN.

[0029] Based on the above structure, when the charging gun of power access point A1 needs to be charged, the charging module connected to power access point A1 is called first. When the charging module connected to power access point A1 cannot meet the charging needs of the electrical equipment, the charging module connected to power access point C1, power access point B1, power access point A3 or power access point A2 can be called by closing the power control switch 1K1, power control switch 1K2, cooperative control switch AK1 or cooperative control switch AK2 to meet the needs of the charging gun.

[0030] The present invention further provides a method for coordinated scheduling of multiple charging modules. Based on the above-mentioned device for coordinated scheduling of multiple charging modules, the method includes S1 to S4.

[0031] S1. Initialize the coordinated scheduling device and connect the charging module and the charging gun to the power access point. The charging module belongs to the conventional technology in this field, and its parameters such as charging power can be selected according to actual needs, which will not be repeated here.

[0032] S2. Monitor the working status of all charging modules and the access status of all charging guns.

[0033] S3. When the charging gun is connected to the electrical device, the power access point corresponding to the charging gun is marked as the current access point, and the charging module connected to the current access point is marked as the current module.

[0034] S4. If the working state of the current module is idle, the current module is used to supply power to the charging gun. If the working state of the current module is busy, the current module is released and then used to supply power to the charging gun. Specifically, it is necessary to first determine the working state of the current module, which is idle or busy. If the working state of the current module is idle, the current module is used to supply power to the charging gun; if the working state of the current module is busy, the current module is released and then used to supply power to the charging gun. More specifically, if the charging gun corresponding to the charging module is not connected to an electric device, it may be called by an electric device connected to a charging gun of an adjacent power access point, or by an electric device connected to other power access links. Therefore, when the charging gun corresponding to the charging module is connected to an electric device, the working module of the charging module may already be busy. Because the electric device needs to obtain electric energy from the charging module corresponding to the connected charging gun first, it is necessary to first switch the working state of the charging module, that is, to release the charging module in a busy state, so that the charging module can smoothly supply power to the electric device. Assuming that the charging module is already busy when the corresponding charging gun is not connected to the power-consuming device, the power-consuming device that obtains power from it can be marked as the original device. If the number of charging modules called by the original device is n, its charging power is nw, where w is the charging power of a single charging module. When one of the charging modules is released and supplies power to a new power-consuming device, the original device will lose a charging module, and its charging power will be reduced to (n-1)w, but it will not affect the charging process of the original device.

[0035] Furthermore, in order to charge the electrical device more efficiently, when the charging gun is connected to the electrical device, the charging demand of the electrical device is obtained, and then the appropriate number of power supply modules are selected based on the charging demand of the electrical device. Specifically, if the current module can meet the charging demand, the current module is used to power the charging gun. If the current module cannot meet the charging demand, multiple power access points adjacent to the current access point are used as alternative access points, and the charging modules connected to the alternative access points are used as alternative modules. It should be noted that the power access points adjacent to the current access point include other power access points that are in the same power access link as the current access point, and also include other power access points that are in different power access links from the current access point but can be connected to the current access point through a collaborative control link. Furthermore, if the working state of at least one alternative module is idle, at least one alternative module is selected according to the charging demand to cooperate with the current module to power the charging gun.

[0036] The method for selecting an alternative access point is as follows.

[0037] First, in the power access link where the current access point is located, at least one power access point adjacent to the current access point is selected as a candidate access point, and the power supply module corresponding to the candidate access point is recorded as a candidate module.

[0038] Second, based on the cooperative control link, at least one power access point adjacent to the current access point is selected from other power access links as a candidate access point, and the power supply module corresponding to the candidate access point is recorded as a candidate module.

[0039] In the method for selecting the candidate access point, the candidate access point is preferentially selected from the power access link where the current access point is located, and in the power access link where the current access point is located, two power access points adjacent to the current access point are selected as candidate access points, and the current access point is located between the two candidate access points, that is, at most two candidate access points can be selected from the power access link. On this basis, if the three charging modules corresponding to the current access point and the two candidate access points still cannot meet the charging demand, the candidate access point is selected from other adjacent power access links based on the collaborative control link. Similarly, at most two candidate access points are selected from other power access links. Based on this method, an electric device can call up to five charging modules, which can efficiently charge the electric device.

[0040] Furthermore, when the charging module connected to the power access point adjacent to the current access point fails, the failed power access point is recorded as a failed access point and switched to a collaborative control point. At this time, the charging modules connected to the two power access points adjacent to the switched collaborative control point can also be called, which means that up to six charging modules can be provided to power the power-consuming devices. However, this is limited to the power-consuming devices connected to the charging guns of the power access points adjacent to the failed access point.

[0041] After selecting the alternative module, it is necessary to determine the working status of the alternative module. If the alternative module is currently supplying power to the corresponding electrical equipment, it cannot be called. Therefore, the number of alternative modules that can actually be called may be less than the total number of selected alternative modules. After determining the alternative modules that can be called, when at least one alternative module cooperates with the current module to power the charging gun, if the alternative access point and the current access point are in the same power access link, the power control switch is used to connect the current access point and the alternative access point. If the alternative access point and the current access point are in different power access links, the collaborative control switch is used to connect the current access point and the alternative access point. Based on the power control switch and the collaborative control switch, the current module and the alternative modules can be flexibly organized together to charge the electrical equipment together, which is highly flexible and easy to control.

[0042] Considering that when multiple power consumers are charging, the charging progress of different power consumers is different. In order to enable the newly connected power consumer to charge more quickly, more charging modules are used to supply power to the newly connected power consumer. When a new power consumer is connected to the charging gun of the power access point, in the process of selecting an alternative module based on the charging needs of the new power consumer, if a certain charging module can be selected as an alternative module, but its working state is busy, that is, it is currently supplying power to other power consumers. At this time, the charging progress of the power consumer that is calling the charging module can be obtained. If the power of the power consumer has reached a preset threshold, the working state of the charging module can be switched to idle, and the charging module can be used as an alternative module, and then the charging module can be used to power the new power consumer. In this way, the newly connected power consumer can be powered first, and when the newly connected power consumer is in urgent need of charging, the user's charging experience can be effectively improved.

[0043] Furthermore, considering that not all newly connected power-consuming devices are in urgent need of charging, there may be some power-consuming devices with higher power levels, but users still choose to charge. Therefore, after the new power-consuming device is connected to the charging gun, the real-time power level of the power-consuming device is obtained while obtaining the charging demand of the power-consuming device. Furthermore, if the real-time power level of the new power-consuming device is lower than the power level of an existing power-consuming device corresponding to a charging module that can be selected as an alternative module, the power module can be selected as an alternative module. Conversely, if the real-time power level of the new power-consuming device is higher than the power level of an existing power-consuming device corresponding to a charging module that can be selected as an alternative module, the charging module maintains the current state, that is, continues to supply power to the existing power-consuming device. In this way, the newly connected power-consuming devices and the existing power-consuming devices can be balanced to improve the charging experience of as many users as possible.

[0044] Furthermore, if the power of an existing power-consuming device corresponding to a charging module that can be selected as an alternative module cannot be obtained, its power can be estimated based on the total duration of power supply to it. If the total duration of power supply to it exceeds a preset duration threshold, the charging module is determined as an alternative module. In addition, it is also possible to determine whether to determine the charging module being called by the existing power-consuming device as an alternative module in combination with the time when the existing power-consuming device starts charging. For example, when an existing power-consuming device starts charging at night and a new power-consuming device is connected at noon the next day, the charging module called by the existing power-consuming device can be determined as an alternative module.

[0045] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one 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 invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-charging module coordinated scheduling device, characterized in that: include: Multiple power access links, the power access link includes multiple power control switches connected in series in a ring topology, and a power access point is formed between two adjacent power control switches. The power access point is used to connect the charging module and the charging gun; A plurality of cooperative control links, the cooperative control links comprising a plurality of cooperative control switches connected in series in a ring topology structure, a cooperative control point being formed between two adjacent cooperative control switches, the cooperative control point corresponding to the power access links one by one, and the cooperative control point being connected to one of the power access points in the corresponding power access link; When the power access point is disconnected from the connected charging module, it can be switched to a cooperative control point, and when the cooperative control point is connected to the charging module, it can be switched to a power access point.

2. A multi-charging module coordinated scheduling device as claimed in claim 1, characterized in that: The device includes a state sensing mechanism, which includes a first sensing module and a second sensing module, wherein the first sensing module is used to sense the charging demand of the electrical device after the charging gun is connected to the electrical device, and the second sensing module is used to sense the working state of the charging module.

3. A multi-charging module coordinated scheduling device as claimed in claim 1, characterized in that: The device comprises a switch control mechanism for controlling the power control switch and the cooperative control switch.

4. A method for coordinated scheduling of multiple charging modules, based on a device for coordinated scheduling of multiple charging modules as claimed in any one of claims 1 to 3, characterized in that: The method comprises the following steps: Initializing the collaborative scheduling device, and connecting a charging module and a charging gun to the power access point; Monitor the working status of all charging modules and the access status of all charging guns; When the charging gun is connected to the power-consuming device, the power access point corresponding to the charging gun is marked as the current access point, and the charging module connected to the current access point is marked as the current module; If the working state of the current module is idle, the current module is used to supply power to the charging gun; If the working status of the current module is busy, the current module is released and then used to power the charging gun.

5. A method for coordinated scheduling of multiple charging modules as claimed in claim 4, characterized in that: When the charging gun is connected to the power-consuming device, the charging demand of the power-consuming device is obtained; If the current module can meet the charging demand, the current module is used to supply power to the charging gun. If the current module cannot meet the charging demand, multiple power access points adjacent to the current access point are used as alternative access points, and the charging modules connected to the alternative access points are used as alternative modules. If the working status of at least one candidate module is idle, at least one candidate module is selected according to the charging demand to cooperate with the current module to jointly power the charging gun.

6. A method for coordinated scheduling of multiple charging modules as claimed in claim 5, characterized in that: Methods for selecting an alternative access point include: In the power access link where the current access point is located, selecting at least one power access point adjacent to the current access point as a candidate access point; Based on the cooperative control link, at least one power access point adjacent to the current access point is selected from other power access links as a candidate access point.

7. A method for coordinated scheduling of multiple charging modules as claimed in claim 6, characterized in that: In the power access link where the current access point is located, two power access points adjacent to the current access point are selected as candidate access points, and the current access point is located between the two candidate access points.

8. A method for coordinated scheduling of multiple charging modules as claimed in claim 6, characterized in that: When at least one alternative module cooperates with the current module to power the charging gun, if the alternative access point and the current access point are located in the same power access link, the power control switch is used to connect the current access point and the alternative access point; if the alternative access point and the current access point are located in different power access links, the collaborative control switch is used to connect the current access point and the alternative access point.

9. A method for coordinated scheduling of multiple charging modules as claimed in claim 4, characterized in that: The method further comprises the steps of: When the charging module connected to the power access point adjacent to the current access point fails, the failed power access point is switched to a collaborative control point.

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