Charging station and power distribution method

Abstract

The present application discloses a charging station and a power distribution method, wherein the charging station includes: a plurality of charging piles and a station controller; the plurality of charging piles are configured to send power requirements and remaining power to the station controller; the station controller is configured to sort the remaining power of each charging pile to obtain a priority, wherein the greater the remaining power, the higher the priority, and in order of priority, sequentially send power to the charging piles according to the required power and the total power in the station. The station controller of the charging station prioritizes the charging piles according to the remaining power of each charging pile, wherein the greater the remaining power of the charging pile, the higher the priority, and the station controller preferentially meets the power requirements of the charging piles with higher priorities, so that vehicles corresponding to the charging piles with higher priorities can be fully charged and leave the charging station as quickly as possible, thereby improving the utilization rate of the charging piles in the charging station.

Description

Technical Field

[0001] The present application relates to the field of automobile charging technology, and in particular to a charging station and a power distribution method. Background Art

[0002] With the gradual promotion of electric vehicles, more and more centralized charging stations are emerging, which can be used specifically to charge electric vehicles. The charging stations are equipped with multiple charging piles, and each charging pile can be equipped with one charging gun or multiple charging guns.

[0003] Charging stations typically have power limits, typically set based on the design power requirements of the power grid and charging station. Maximizing vehicle charging demand within these limits during peak charging periods and maximizing charging station utilization are technical challenges that need to be addressed. Summary of the Invention

[0004] In view of this, the present application provides a charging station and a power distribution method, which can improve the utilization rate of charging piles.

[0005] The present application provides a charging station, comprising: a plurality of charging piles and a station controller;

[0006] Multiple charging piles for sending required power and remaining power to the station controller;

[0007] The station controller is used to sort the remaining power of each charging pile to obtain a priority. The greater the remaining power, the higher the priority. In order of priority, power is sent to the charging piles according to the required power and the total power in the station.

[0008] Preferably, the station controller is further configured to obtain priorities according to the time when the vehicles corresponding to the charging piles start charging when the remaining power levels of at least two charging piles are the same, wherein the earlier the charging start time, the higher the priority.

[0009] Preferably, each charging pile includes at least one charging gun;

[0010] The station controller is also used to reserve starting power for each charging gun that is not charging;

[0011] The station controller is specifically used to obtain the sum of the transmitted power according to the sum of the total power in the station and the reserved starting power; and transmit power to the corresponding charging piles according to the sum of the transmitted power and the required power in order of priority.

[0012] Preferably, the charging pile includes at least the following two charging guns: a first charging gun and a second charging gun;

[0013] The charging pile includes a pile controller;

[0014] A pile controller, configured to allocate power in the pile proportionally according to the power requirements of the first and second charging guns when the remaining power of the first and second charging guns are both greater than or equal to a preset threshold;

[0015] The pile controller is also used to reduce the allocated power of the second charging gun and increase the allocated power of the first charging gun when the remaining power of the first charging gun is greater than or equal to a preset threshold and the remaining power of the second charging gun is less than the preset threshold.

[0016] Preferably, the pile controller is further configured to release power to the charging station when the required power is less than the pile limit power, and the station controller is configured to dynamically adjust the total power in the station according to the released power.

[0017] Preferably, the pile controller is specifically configured to send the required power and the remaining power to the station controller, where the remaining power is the larger value between the remaining power of the first charging gun and the remaining power of the second charging gun.

[0018] The present application also provides a power distribution method for a charging station, comprising:

[0019] Receive the required power and remaining power sent by each charging pile;

[0020] The priority is determined by sorting the remaining power of each charging pile. The greater the remaining power, the higher the priority.

[0021] In order of priority, power is sent to the charging piles based on the required power and the total power in the station.

[0022] Preferably, it also includes:

[0023] When the remaining power corresponding to at least two charging piles is the same, the priority is determined according to the time when the vehicles corresponding to the charging piles start charging. The earlier the charging start time, the higher the priority.

[0024] Preferably, each charging pile includes at least one charging gun;

[0025] Reserve starting power for each charging gun that is not charging;

[0026] In order of priority, power is delivered to the charging piles based on the required power and the total power within the station, specifically including:

[0027] The sum of the transmitted power is obtained based on the sum of the total power in the station and the reserved starting power; in order of priority, power is transmitted to the corresponding charging piles based on the sum of the transmitted power and the required power.

[0028] Preferably, the charging pile includes at least the following two charging guns: a first charging gun and a second charging gun;

[0029] Also includes:

[0030] The remaining power of the first charging gun and the remaining power of the second charging gun are both greater than or equal to a preset threshold, and the power in the charging pile is proportionally allocated according to the required power of the first charging gun and the required power of the second charging gun;

[0031] When the remaining power of the first charging gun is greater than or equal to a preset threshold and the remaining power of the second charging gun is less than the preset threshold, the allocated power of the second charging gun is reduced and the allocated power of the first charging gun is increased.

[0032] Preferably, it also includes:

[0033] When the required power is less than the pile limit power, the power is released to the charging station, and the station controller is used to dynamically adjust the total power in the station according to the released power.

[0034] It can be seen that this application has the following beneficial effects:

[0035] The charging station provided by the present application has a station controller that prioritizes the charging piles according to the remaining power of each charging pile. The greater the remaining power of the charging pile, the higher the priority. The station controller gives priority to meeting the power requirements of the charging piles with high priority, so that the vehicles corresponding to the charging piles with high priority can be fully charged and leave the charging station as soon as possible, thereby improving the utilization rate of the charging piles in the charging station. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of a charging station provided in an embodiment of the present application;

[0037] Figure 2 A flowchart of a power distribution method for a charging station provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] See also Figure 1 , which is a schematic diagram of a charging station provided in an embodiment of the present application.

[0040] The charging station provided in this embodiment includes: a plurality of charging piles and a station controller 100;

[0041] Multiple charging piles are used to send required power and remaining power to the station controller; the required power is the required power of the vehicle, and the remaining power is the remaining power of the charging pile.

[0042] For ease of understanding and introduction, Figure 1While two charging piles are used as an example, it should be understood that a charging station can include more charging piles. A first charging pile 201 corresponds to a first vehicle, and a second charging pile 202 corresponds to a second vehicle. It should be understood that a charging pile can also include two charging guns, each corresponding to a vehicle, meaning that a charging pile can also serve two vehicles.

[0043] The first vehicle reports a first required power to the first charging pile 201 , and the second vehicle reports a second required power to the second charging pile 202 .

[0044] The first charging pile 201 reports the first required power and the first remaining power to the station controller 100 ; the second charging pile 202 reports the second required power and the second remaining power to the station controller 100 .

[0045] The station controller 100 is used to sort the remaining power of each charging pile to obtain a priority. The greater the remaining power, the higher the priority. In order of priority, power is sent to the charging piles according to the required power and the total power in the station.

[0046] For example, if the first remaining power of the first charging pile 201 is greater than the second remaining power of the second charging pile 202, the first charging pile 201 has a higher priority than the second charging pile 202. The station controller 100 prioritizes meeting the needs of the first charging pile 201, so that the first vehicle corresponding to the first charging pile 201 can be fully charged and leave as soon as possible. This allows other vehicles to continue to charge at the first charging pile 201, allowing the charging station to charge more vehicles in the same time.

[0047] For example, the station controller prioritizes power delivery to the first charging pile 201 based on the first power requirement to meet the charging demand of the first charging pile 201. When the remaining power can still meet the second power requirement, the second power requirement is continued to be delivered to the second charging pile 202. If the second power requirement cannot be met, the remaining power of the charging station can be delivered to the second charging pile 202.

[0048] The charging station provided in the embodiment of the present application prioritizes each charging pile according to the remaining power. The greater the remaining power, the higher the priority, and the power requirements of the charging piles with high priority are met first. This makes it easier for vehicles corresponding to the charging piles with high priority to charge and leave the charging station as soon as possible, thereby improving the utilization rate of the charging piles in the charging station.

[0049] It should be noted that Figure 1 The introduction is made by taking one charging pile corresponding to one vehicle as an example. The charging pile may include multiple charging guns, for example, two charging guns, and each charging gun may correspond to one vehicle.

[0050] The pile controller is specifically used to send the required power and remaining power to the station controller.

[0051] The charging pile includes a first charging gun and a second charging gun; the remaining power of the charging pile is the larger value of the remaining power of the first charging gun and the remaining power of the second charging gun.

[0052] For example, the charging pile includes charging gun A and charging gun B, then the remaining power of the charging pile is determined by the higher remaining power of charging gun A and charging gun B. For example, if the remaining power of charging gun A is 80% and the remaining power of charging gun B is 90%, then the remaining power of the charging pile is 90%.

[0053] In addition, the charging piles provided in the embodiment of the present application can determine the priority according to the time when the vehicles corresponding to the charging piles start charging when the remaining power of the two charging piles is the same. That is, the station controller is also used to determine the priority according to the time when the vehicles corresponding to the charging piles start charging when the remaining power of at least two charging piles is the same. The earlier the charging start time, the higher the priority.

[0054] For example, if the vehicle at the first charging pile starts charging first and the vehicle at the second charging pile starts charging later, the first charging pile has a higher priority and will first meet the charging needs of the first charging pile, so that the vehicle that starts charging first can finish charging and leave as soon as possible.

[0055] The remaining power can be completely equal or within a certain error range. For example, if the error is 1%, then if the remaining power of the two charging piles differ by 1%, then the remaining power of the two charging piles is considered to be the same. The error can also be other values.

[0056] In addition, before the station controller sends power to the charging pile that has sent the required power, the station controller is also used to reserve starting power for each charging gun that is not charging;

[0057] The station controller is specifically used to obtain the sum of the transmitted power according to the sum of the total power in the station and the reserved starting power; and transmit power to the corresponding charging piles according to the sum of the transmitted power and the required power in order of priority.

[0058] That is, the station controller deducts the sum of the reserved starting powers from the total power in the station to obtain the sum of the transmitted powers, and transmits the powers in sequence according to the priority of the charging piles based on the sum of the transmitted powers. If the sum of the transmitted powers is greater than the sum of the required powers of each charging pile, the station controller will meet the charging needs of each charging pile. If the sum of the transmitted powers is less than the sum of the required powers, the required powers of the charging piles with high priorities will be met first, and the power obtained by the charging piles with low priorities will be less than the corresponding required powers. This ensures that the vehicles with high-priority charging piles are charged and leave first. It should be understood that the vehicle in the embodiment of the present application charging and leaving does not necessarily mean fully charged. It can be charged to the preset power of the vehicle. For example, for electric taxis, during the lunch break, the taxis enter the charging station to charge, charge for a preset time period, and leave to continue working.

[0059] The above describes the implementation scheme for the charging station to distribute power to each charging pile in the station. The following describes the implementation scheme for the pile controller to distribute power to multiple charging guns in any charging pile in the charging station.

[0060] In the charging station provided in this embodiment, for any charging pile, the charging pile includes at least the following two charging guns: a first charging gun and a second charging gun;

[0061] The charging pile includes a pile controller;

[0062] The pile controller is used to proportionally distribute the power in the pile according to the required power of the first charging gun and the required power of the second charging gun when the remaining power of the first charging gun and the remaining power of the second charging gun are both greater than or equal to the preset threshold. For example, if the preset threshold is 80%, if the remaining power of the first charging gun is greater than 80% and the remaining power of the second charging gun is also greater than 80%, the power is distributed proportionally according to the required power.

[0063] For example, the required power of the first charging gun A is P1, the required power of the second charging gun is P2, and the total power of the charging pile is P. Then the power allocated to the first charging gun A is P*P1 / (P1+P2), and the power allocated to the second charging gun B is P*P2 / (P1+P2).

[0064] The pile controller is also used to reduce the allocated power of the second charging gun and increase the allocated power of the first charging gun when the remaining power of the first charging gun is greater than or equal to a preset threshold and the remaining power of the second charging gun is less than the preset threshold.

[0065] For example, the preset threshold is 80%. If the remaining power of the first charging gun is greater than 80% and the remaining power of the second charging gun is less than 80%; the required power of the first charging gun A is P1 and the required power of the second charging gun is P2, then the power allocated by the first charging gun A can be greater than P1, and the power allocated by the second charging gun B can be less than P2, that is, the charging needs of the vehicle corresponding to the first charging gun A are preferentially met, so that it can be charged and leave the charging station as soon as possible.

[0066] In addition, to ensure the station controller can fully dispatch power within the station and prioritize allocation to charging piles with demand, the pile controller is also used to release power to the charging station when the required power is less than the pile's power limit. The station controller is used to dynamically adjust the total power within the station based on the released power. This allows charging piles with higher priority within the station to meet charging needs first.

[0067] It should be understood that after the station controller adjusts the total power in the station, it can re-distribute the power based on the priority and required power of the charging pile. This application does not specifically limit the time point of re-adjustment, and it can be carried out according to the preset cycle or other preset methods.

[0068] The station controller can dynamically adjust the total power in the station according to the power changes of the charging piles, thereby dynamically allocating power without having to pay specific attention to the power of each charging gun. This reduces the number of instructions issued and improves the scheduling efficiency of the charging station, thereby meeting the maximum utilization of limited power and achieving power load balancing.

[0069] Based on the charging pile provided in the above embodiment, the present application also provides a power distribution method for a charging station, which is described in detail below with reference to the accompanying drawings.

[0070] See also Figure 2 , which is a flow chart of a power distribution method for a charging pile provided in an embodiment of the present application.

[0071] The power distribution method of the charging station provided in this embodiment includes:

[0072] S201: Receive the required power and remaining power sent by each charging pile;

[0073] The required power is the required power of the vehicle, and the remaining power is the remaining power of the charging pile.

[0074] The charging pile includes a first charging gun and a second charging gun. The remaining power of the charging pile is the larger of the remaining power of the first charging gun and the remaining power of the second charging gun. For example, if the charging pile includes charging guns A and B, the remaining power of the charging pile is determined by the higher remaining power of charging guns A and B. For example, if the remaining power of charging gun A is 80% and the remaining power of charging gun B is 90%, the remaining power of the charging pile is 90%.

[0075] S202: sorting the remaining power of each charging pile to obtain a priority, where the greater the remaining power, the higher the priority;

[0076] S203: In order of priority, power is delivered to the charging piles according to the required power and the total power in the station.

[0077] The charging station provided in the embodiment of the present application prioritizes each charging pile according to the remaining power. The greater the remaining power, the higher the priority, and the power requirements of the charging piles with high priority are met first. This makes it easier for vehicles corresponding to the charging piles with high priority to charge and leave the charging station as soon as possible, thereby improving the utilization rate of the charging piles in the charging station.

[0078] The method provided in this embodiment further includes:

[0079] When the remaining power corresponding to at least two charging piles is the same, the priority is determined according to the time when the vehicles corresponding to the charging piles start charging. The earlier the charging start time, the higher the priority.

[0080] For example, if the vehicle at the first charging pile starts charging first and the vehicle at the second charging pile starts charging later, the first charging pile has a higher priority and will first meet the charging needs of the first charging pile, so that the vehicle that starts charging first can finish charging and leave as soon as possible.

[0081] In the method provided in this embodiment, each charging pile includes at least one charging gun; starting power is reserved for each charging gun that is not charging;

[0082] In order of priority, power is delivered to the charging piles based on the required power and the total power within the station, specifically including:

[0083] The sum of the transmitted power is obtained based on the sum of the total power in the station and the reserved starting power; in order of priority, power is transmitted to the corresponding charging piles based on the sum of the transmitted power and the required power.

[0084] The charging pile includes at least the following two charging guns: a first charging gun and a second charging gun;

[0085] Also includes:

[0086] The remaining power of the first charging gun and the remaining power of the second charging gun are both greater than or equal to the preset threshold value. The power in the charging pile is proportionally allocated according to the required power of the first charging gun and the required power of the second charging gun. Since the remaining power of the two charging guns is large and can meet the charging needs of the vehicles, there is no need for special power allocation, and it can be directly allocated according to the proportion. This can ensure that both vehicles are charged as soon as possible and leave the charging station.

[0087] When the remaining power of the first charging gun is greater than or equal to a preset threshold and the remaining power of the second charging gun is less than the preset threshold, the allocated power of the second charging gun is reduced and the allocated power of the first charging gun is increased.

[0088] In this case, priority is given to ensuring that the charging gun with a larger remaining power can meet the charging needs of the vehicle first and leave the charging station after charging.

[0089] In addition, in order to enable the station controller to fully dispatch the power within the station and preferentially allocate it to charging piles in need, the method provided in this embodiment further includes:

[0090] When the required power is less than the pile limit power, the power is released to the charging station, and the station controller is used to dynamically adjust the total power in the station according to the released power.

[0091] It should be understood that after the station controller adjusts the total power in the station, it can re-distribute the power based on the priority and required power of the charging pile. This application does not specifically limit the time point of re-adjustment, and it can be carried out according to the preset cycle or other preset methods.

[0092] The station controller can dynamically adjust the total power in the station according to the power changes of the charging piles, thereby dynamically allocating power without having to pay specific attention to the power of each charging gun. This reduces the number of instructions issued and improves the scheduling efficiency of the charging station, thereby meeting the maximum utilization of limited power and achieving power load balancing.

[0093] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the systems or 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 method description.

[0094] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily 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 application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A charging station, characterized in that: include: multiple charging piles and station controllers; The charging pile includes at least the following two charging guns: a first charging gun and a second charging gun; the charging pile includes a pile controller; The plurality of charging piles are configured to send required power and remaining power to the station controller; The station controller is configured to sort the remaining power of each charging pile to obtain a priority, wherein the greater the remaining power, the higher the priority, and sequentially transmit power to the charging pile according to the required power and the total power in the station in the order of the priority; The pile controller is configured to allocate the power in the pile proportionally according to the power requirements of the first charging gun and the second charging gun when the remaining power of the first charging gun and the remaining power of the second charging gun are both greater than or equal to a preset threshold; The pile controller is further configured to reduce the allocated power of the second charging gun and increase the allocated power of the first charging gun when the remaining power of the first charging gun is greater than or equal to the preset threshold and the remaining power of the second charging gun is less than the preset threshold.

2. The charging station according to claim 1, characterized in that The station controller is further configured to obtain priorities according to the time when the vehicles corresponding to the charging piles start charging when the remaining power levels of at least two of the charging piles are the same, wherein the earlier the charging start time, the higher the priority.

3. The charging station according to claim 1, characterized in that Each of the charging piles includes at least one charging gun; The station controller is further configured to reserve starting power for each charging gun that is not charging; The station controller is specifically used to obtain the sum of the transmitted power according to the sum of the total power in the station and the reserved starting power; and transmit power to the corresponding charging pile according to the sum of the transmitted power and the required power in the order of the priority.

4. The charging station according to claim 1, characterized in that The pile controller is further configured to release power to the charging station when the required power is less than the pile limit power, and the station controller is configured to dynamically adjust the total power in the station according to the released power.

5. The charging station according to any one of claims 3 to 4, characterized in that: The pile controller is specifically configured to send the required power and the remaining power to the station controller, where the remaining power is the larger value of the remaining power of the first charging gun and the remaining power of the second charging gun.

6. A power distribution method for a charging station, characterized in that: include: Receive the required power and remaining power sent by each charging pile; Priority is obtained by sorting the remaining power of each charging pile, where the greater the remaining power, the higher the priority; In the order of priority, power is delivered to the charging piles according to the required power and the total power in the station; The charging pile includes at least the following two charging guns: a first charging gun and a second charging gun; Also includes: The remaining power of the first charging gun and the remaining power of the second charging gun are both greater than or equal to a preset threshold, and the power in the charging pile is proportionally allocated according to the required power of the first charging gun and the required power of the second charging gun; When the remaining power of the first charging gun is greater than or equal to the preset threshold and the remaining power of the second charging gun is less than the preset threshold, the allocated power of the second charging gun is reduced and the allocated power of the first charging gun is increased.

7. The method according to claim 6, characterized in that Also includes: When the remaining power corresponding to at least two of the charging piles is consistent, the priority is determined according to the time when the vehicles corresponding to the charging piles start charging, and the earlier the charging start time, the higher the priority.

8. The method according to claim 6, characterized in that Each of the charging piles includes at least one charging gun; Reserve starting power for each charging gun that is not charging; The step of transmitting power to the charging pile according to the required power and the total power in the station in the order of priority specifically includes: The sum of the transmitted power is obtained according to the sum of the total power in the station and the reserved starting power; and the power is transmitted to the corresponding charging pile according to the sum of the transmitted power and the required power in order of priority.

9. The method according to claim 6, characterized in that Also includes: When the required power is less than the charging pile limit power, the power is released to the charging station, and the total power in the station is dynamically adjusted according to the released power.

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