A method and system for orderly charging management of new energy vehicles in private parking spaces in a residential area

Abstract

The present invention proposes a method and system for orderly charging management of new energy vehicles in private parking spaces in a residential area, which solves the problems of uneven distribution of public power load and low utilization rate of charging facilities when charging in conventional private parking spaces. The main scheme includes: S1, communicating the charging management terminal of the charging facilities in the residential area's private parking spaces with the cloud server, setting the upper limit of the safe power load of the charging management terminal, setting the charging power of a single charging facility, and reserving starting power space for newly connected charging facilities; S2, the user parks in the parking space and requests the charging management terminal to start the charging facility; S3, the charging management terminal calculates the difference between the upper limit of the safe power load and the total amount of used power load, compares the difference with a preset threshold, and adjusts the average rated power of the charging management terminal so that the difference is not less than the preset threshold.

Description

Technical Field

[0001] The present invention relates to the field of private parking space charging technology, and in particular to a method and system for orderly charging management of new energy vehicles in private parking spaces in a residential area. Background Art

[0002] New energy vehicles are powered by electricity, and charging their batteries is a fundamental requirement for every new energy vehicle. For private new energy vehicles, utilizing the time spent parking in residential communities for extended periods of AC slow charging is the most time-efficient and battery-friendly method. Therefore, providing charging services in public parking spaces is a growing need within every community.

[0003] The existing management method for charging new energy vehicles in private parking spaces in residential communities is that owners of private parking spaces within the community apply to install an AC charging pile in their own parking spaces. The power is generally 7KW, and the charging is done during the parking time at night. The average charging volume per night is about 50 degrees. If each private car travels 10,000 kilometers per year, the annual charging volume is about 2,000 degrees, which takes about 40 nights.

[0004] This approach has two main disadvantages, as follows:

[0005] 1. Unfair distribution of electricity load. The electricity load of the community is limited, and it is impossible to configure a 7KW electricity load for each parking space. Therefore, the total electricity load will be allocated to whoever installs it first. When the existing electricity load allocation ends, the subsequent parking spaces that want to apply for electricity load will no longer have it, resulting in unfair distribution of public electricity load;

[0006] 2. Electricity load utilization rate. For example, if a 7KW charging pile is installed in a parking space and charges 2,000 kWh of electricity per year, the electricity load is only 2,000 / (7*24*365)=3.2%. For the limited public electricity load, the utilization rate is too low. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a method and system for orderly charging management of new energy vehicles in private parking spaces in a residential area, which can improve the utilization rate of private parking space charging facilities under the premise of safe power load.

[0008] To solve the above technical problems, the present invention adopts a technical solution: a method for orderly charging management of new energy vehicles in private parking spaces in a residential area, comprising the following steps:

[0009] S1. Communicate the charging management terminal of the residential community's private parking charging facilities with the cloud server, set the safe power load limit of the charging management terminal, set the charging power of each charging facility, and reserve starting power space for newly connected charging facilities;

[0010] S2. The user parks the car and requests the charging management terminal to start the charging facility.

[0011] S3. The charging management terminal calculates the difference between the upper limit of safe power load and the total power load used and compares it with the preset threshold.

[0012] If the difference is greater than the preset threshold, the charging management terminal agrees to start the charging facility, and at the same time recalculates the total amount of power load used, compares it with the secondary difference of the upper limit of the safe power load and the preset threshold. When it is less than the preset threshold, the charging management terminal reduces the average power by a certain amount until the secondary difference is not less than the preset threshold.

[0013] Furthermore, the specific calculation steps of the difference and threshold comparison method in step S3 are as follows:

[0014] The charging management terminal detects the actual number of working devices T and the maximum three-phase current I provided by the charging power supply, and actively reports the total current I ′ and the number of devices T1 that do not participate in current distribution to the cloud server;

[0015] The cloud server calculates the initial distribution current as (0.9II ′ ) / (T-T1), and then the total current I ′ Compare with the initial distribution current;

[0016] If the total current I ′ If the current is greater than the initial allocation current, the devices that actively report the current participate in the allocation. The cloud server screens the number of devices that actively report the current T2 and the total current I ′ , distribution current (0.9II ′ ) / (T-T2),

[0017] If the total current I ′ Not greater than the initial distribution current, adjust the PWM duty cycle of the current distribution device to (0.9II ′ ) / (I-T2)*100%, and then the cloud server recalculates the allocated current.

[0018] Furthermore, the calculation formula for the maximum number of devices n allowed to be connected to the charging management terminal is:

[0019]

[0020] The preset threshold is 7kw. When the difference between the upper limit of the safe power load and the total power load in use is greater than 20kw, the charging management terminal controls the charging facility to operate at full load.

[0021] The cloud server communicates with the user through the mobile app.

[0022] An orderly charging management system for new energy vehicles in private parking spaces in a residential area, comprising:

[0023] Charging module, used to provide charging facility terminals and user car charging;

[0024] A management module that manages the real-time power of charging facilities using the above-mentioned method for orderly charging management of new energy vehicles in private parking spaces in a residential area;

[0025] The cloud module is used to communicate between the user's mobile phone and the charging module, providing real-time charging status.

[0026] An electronic device includes a memory, a processor, and a computer program stored in the memory and runnable on the processor, characterized in that when the processor executes the program, the steps of the above-mentioned method for orderly charging management of new energy vehicles in private parking spaces in a residential area are implemented.

[0027] A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, it is used to implement the steps of the above-mentioned method for orderly charging management of new energy vehicles in private parking spaces in a residential area.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. Orderly charging is achieved. Within a fixed total power load, by reducing the power of each AC charging facility, the power load is distributed as evenly as possible among the AC charging facilities, increasing the number of AC charging facilities and achieving orderly charging according to the load.

[0030] 2. Using a preset safety load limit, the charging management terminal dynamically monitors the real-time power of each AC charging facility, ensuring a certain safety load is reserved and that new AC charging facilities have sufficient starting power.

[0031] 3. It avoids the problem of unfair distribution of public electricity load in the community, ensures that all private parking spaces are equipped with AC charging facilities and evenly distributes public electricity load, greatly improving the utilization rate of the limited total electricity load in the community. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0033] Figure 1A schematic diagram of an overall method flow chart according to one embodiment of the present invention is shown;

[0034] Figure 2 The figure schematically shows a diagram of orderly management calculation steps proposed according to one embodiment of the present invention. DETAILED DESCRIPTION

[0035] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0036] According to one embodiment of the present invention, Figure 1 Shown.

[0037] like Figure 1 As shown, a method for orderly charging management of new energy vehicles in private parking spaces in a residential area includes the following steps:

[0038] S1. Communicate the charging management terminal of the residential community's private parking charging facilities with the cloud server, set the safe power load limit of the charging management terminal, set the charging power of each charging facility, and reserve starting power space for newly connected charging facilities;

[0039] S2. The user parks the car and requests the charging management terminal to start the charging facility.

[0040] S3. The charging management terminal calculates the difference between the upper limit of safe power load and the total power load used and compares it with the preset threshold.

[0041] If the difference is greater than the preset threshold, the charging management terminal agrees to start the charging facility, and at the same time recalculates the total amount of power load used, compares it with the secondary difference of the upper limit of the safe power load and the preset threshold. When it is less than the preset threshold, the charging management terminal reduces the average power by a certain amount until the secondary difference is not less than the preset threshold.

[0042] Furthermore, the specific calculation steps of the difference and threshold comparison method in step S3 are as follows:

[0043] The charging management terminal detects the actual number of working devices I and the maximum three-phase current I provided by the charging power supply, and actively reports the total current I ′ and the number of devices that do not participate in current distribution I1 to the cloud server;

[0044] The cloud server calculates the initial distribution current as (0.9II ′ ) / (T-T1), and then the total current I′ Compare with the initial distribution current;

[0045] If the total current I ′ If the current is greater than the initial allocation current, the devices that actively report the current participate in the allocation. The cloud server screens the number of devices that actively report the current T2 and the total current I ′ , distribution current (0.9II ′ ) / (T-T2),

[0046] If the total current I ′ Not greater than the initial distribution current, adjust the PWM duty cycle of the current distribution device to (0.9II ′ ) / (T-T2)*100%, and then the cloud server recalculates the allocated current.

[0047] The management method in this application is based on the management method of Internet of Things technology. Through the means of Internet of Things, AC charging facilities, orderly charging management terminals, 4G communication modules and cloud servers are networked, and through orderly charging management programs, communication programs, cloud service programs and customer service programs, etc., overall orderly charging management is achieved. The specific implementation process is explained below.

[0048] 1. Hardware construction

[0049] Build a cloud server and open a network channel

[0050] Build orderly charging management terminals and 4G communication modules in the community distribution room

[0051] In the private parking spaces in the community, AC charging facilities will be installed upon application, and power will be drawn from the orderly charging management terminal.

[0052] 2. Program input

[0053] Enter the orderly charging management program and communication program in the orderly charging management terminal

[0054] Enter the cloud service program and customer service program on the cloud server

[0055] 3. Management Settings

[0056] Orderly charging management facilities and AC charging facilities are bound in a one-to-many manner, and the upper limit of safe power load of orderly charging management facilities is set, and the power of a single AC charging facility is set.

[0057] Production AC charging facility coding

[0058] 4. Management Process

[0059] Owners of private parking spaces in the residential area can park their new energy vehicles in private parking spaces and swipe their cards to activate the AC charging facilities;

[0060] AC charging facilities apply to orderly charging management facilities for facility activation;

[0061] The orderly charging management facility calculates the difference between the safe upper limit and the total amount of used power load based on the safe power load upper limit and the total amount. If the difference is greater than 7KW, the AC charging facility is approved to start;

[0062] The AC charging facility is activated and the owner charges;

[0063] After receiving the feedback of successful charging, the orderly charging management facility recalculates the total amount of used power load. When the difference between the total amount and the safety upper limit is less than 7KW, the orderly charging management facility issues a power reduction command to the AC charging facilities that are charging, reducing the power by a certain amount on average to achieve a difference between the total amount and the safety upper limit of not less than 7KW.

[0064] All AC charging facilities will reduce power in a unified manner according to the order of the orderly charging management facility;

[0065] Orderly charging management facilities monitor the difference between the total amount and the safety upper limit. When the difference exceeds 20KW, the fully loaded AC charging facilities are selected and a command is sent to increase the power.

[0066] Orderly charging management facilities, implement monitoring of total volume and current of each AC charging facility, and upload to the cloud server in a timely manner;

[0067] Car owners can use the mini program to check the real-time charging status of their vehicles and understand the accumulated charging power.

[0068] Similarly, the orderly charging management system for new energy vehicles in residential private parking spaces built based on the above management method mainly includes:

[0069] Charging module, used to provide charging facility terminals and user car charging;

[0070] A management module that manages the real-time power of charging facilities using the above-mentioned method for orderly charging management of new energy vehicles in private parking spaces in a residential area;

[0071] The cloud module is used to communicate between the user's mobile phone and the charging module, providing real-time charging status.

[0072] Based on this system, it is also possible to maximize the utilization of limited public electricity load and distribute it to each charging facility under the premise of safe electricity load, thereby meeting the efficient charging needs of private parking spaces.

[0073] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A method for orderly charging management of new energy vehicles in private parking spaces in a residential area, characterized in that: The steps include: S1, connect the charging management terminal of the community private parking charging facility to the cloud server, set the charging management terminal The upper limit of safe power load is set to set the charging power of a single charging facility and reserve the starting power space for newly connected charging facilities; S2. The user parks the car and requests the charging management terminal to start the charging facility. S3, the charging management terminal calculates the difference between the upper limit of safe power load and the total power load used and Preset threshold comparison, If the difference is greater than the preset threshold, the charging management terminal agrees to start the charging facility and recalculates the used power load. The total amount is compared with the secondary difference of the upper limit of safe power load and the preset threshold. When it is less than the preset threshold, the charging management terminal reduces the average power by a certain amount until the secondary difference is not less than the preset threshold. The specific calculation steps of the difference and threshold comparison method in step S3 are: Number of charging management terminal devices actually working The maximum three-phase current provided by the charging power supply , and actively report the total current that does not participate in current distribution and the number of devices that do not participate in current distribution To the cloud server; The cloud server calculates the initial distribution current as , and then compare the actively reported device current with the initially allocated current; If the current of the device that actively reports is greater than the initial allocation current, the device that actively reports current will participate in the allocation, and the cloud server will screen the number of devices that actively report current. and the total current that does not participate in current distribution , distribute current , If the current of the actively reported device is not greater than the initial distribution current, adjust the PWM duty cycle of the device participating in the current distribution to ,Then the cloud server recalculates the distribution current; The maximum number of devices allowed to be connected to the charging management terminal The calculation formula is, .

2. The method for orderly charging management of new energy vehicles in private parking spaces in a residential area according to claim 1 is characterized by: The preset threshold is 7kw. When the difference between the upper limit of the safe power load and the total power load in use is greater than 20kw, the charging management terminal controls the charging facility to operate at full load.

3. The method for orderly charging management of new energy vehicles in private parking spaces in a residential area according to claim 1 is characterized by: The cloud server communicates with the user through the mobile app.

4. A management system for orderly charging of new energy vehicles in private parking spaces in a residential area, characterized by: include: Charging module, used to provide charging facility terminals and user car charging; Management module, through the orderly charging management of new energy vehicles in private parking spaces in the community as described in any one of claims 1-3 Method to manage real-time power of charging facilities; The cloud module is used to communicate between the user's mobile phone and the charging module, providing real-time charging status.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein : When the processor executes the program, the steps of the method for orderly charging management of new energy vehicles in private parking spaces in a residential area as described in any one of claims 1 to 3 are implemented.

6. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it is used to implement the steps of the method for orderly charging management of new energy vehicles in private parking spaces in a residential area as described in any one of claims 1 to 3.

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