A charging station low power capacity ordered charging management system

Abstract

The application belongs to the technical field of new energy, and particularly relates to a charging station low-power capacity orderly charging management system. The system comprises: a charging station orderly charging model; the charging station orderly charging model is configured to: receive a user input charging limit state and a chargeable waiting time; obtain N chargeable time periods of an electric vehicle of the user based on the chargeable waiting time; determine a required charging time period number of the electric vehicle based on the charging limit state and the N chargeable time periods; obtain a charging load margin of each chargeable time period; wherein the charging load margin is used to represent the power consumption load of the chargeable time period; and determine a charging strategy of the electric vehicle based on the charging load margin of each chargeable time period, the rated charging power of a charging pile of the charging station and the required charging time period number of the electric vehicle. In this way, power grid resources can be reasonably utilized, both the waste of power grid resources can be avoided and the load peak-valley difference can be reduced.

Description

Technical Field

[0001] This invention relates to the field of new energy technology, and in particular to a low-power capacity orderly charging management system for charging stations. Background Technology

[0002] Charging piles are charging devices that provide energy replenishment for electric vehicles. Their function is similar to that of a gas pump in a gas station. They can be fixed to the ground or a wall and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. They can charge various models of electric vehicles according to different voltage levels.

[0003] Charging stations are directly connected to the power grid at their input end, and each output end is equipped with a charging plug for charging electric vehicles. Charging stations generally offer two charging methods: regular charging and fast charging. Users can use a specific charging card to swipe on the human-machine interface provided by the charging station to perform charging operations and print out payment data. The charging station's display screen shows data such as charging amount, cost, and charging time. However, with the increasing number of charging stations, there will be periods when the power grid is insufficient, and at other times, configuring power capacity based on charging power will result in a significant waste of power resources. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, this invention provides a low-power capacity orderly charging management system for charging stations.

[0005] In a first aspect, embodiments of this application provide a low-power capacity orderly charging management system for charging stations, comprising: an orderly charging model for the charging station; the orderly charging model is configured to: receive a charging restriction state and a charging waiting time input by a user; the charging restriction state characterizes the state of charge required for charging; obtain N charging time periods corresponding to the user's electric vehicle based on the charging waiting time; wherein the duration of each charging time period is a preset duration; determine the number of charging time periods required for the electric vehicle within the N charging time periods based on the charging restriction state and the N charging time periods; obtain a charging load margin for each charging time period; wherein the charging load margin characterizes the power load of the charging time period; and determine a charging strategy for the electric vehicle based on the charging load margin for each charging time period, the rated charging power of the charging piles of the charging station, and the number of charging time periods required for the electric vehicle.

[0006] Optionally, in some embodiments, the charging strategy for the electric vehicle is determined based on the charging load margin of each charging time period, the rated charging power of the charging piles of the charging station, and the number of charging time periods required for the electric vehicle. This includes: determining the electricity price for different charging times based on the charging load margin of each charging time period, the rated charging power of the charging piles of the charging station, and the number of charging time periods required for the electric vehicle; and determining the charging strategy for the electric vehicle based on the electricity price for the different charging times.

[0007] Optionally, in some embodiments, the electricity price for different charging times is determined based on the charging load margin of each charging time period, the rated charging power of the charging piles at the charging station, and the number of charging time periods required by the electric vehicle, including: comparing the charging load margin M. t The rated charging power of the connected charging pile; to obtain the charging load margin M. t The number H of charging piles with a rated charging power greater than the connected charging power i If H i If the number of charging time periods required for the electric vehicle is less than the number of charging time periods, then the charging price for all time periods is determined as the first price; wherein, the orderly charging model of the charging station is equipped with the first price and the second price; the price of the first price is higher than the price of the second price.

[0008] Optionally, in some embodiments, after determining the charging price for all time periods as the first price, the orderly charging model of the charging station is further configured to: send a prompt message to the user; wherein the prompt message includes charging the electric vehicle using the first price.

[0009] Optionally, in some embodiments, the orderly charging model of the charging station is further configured to: calculate the total power required to charge all electric vehicles in the charging station during the charging waiting time; and determine that the total power is less than the maximum power of the power grid.

[0010] Optionally, in some embodiments, the total power of the power grid is calculated using the following formula, including: P tot =∑P EV Among them, P tot This represents the total power required to charge all electric vehicles within the charging station during the charging wait time; P EV This indicates the power required by each electric vehicle during the charging wait time; E EV The energy required by each electric vehicle during the charging wait time is indicated by h; the charging wait time is indicated by h; and the charging time of the electric vehicle is indicated by t. SOC rThis indicates the charging limitation status of the electric vehicle; V EV This indicates the battery voltage of the electric vehicle; Ah rating This indicates the rated ampere-hours of the electric vehicle's battery.

[0011] Optionally, in some embodiments, determining the charging strategy for the electric vehicle based on the charging load margin for each of the rechargeable time periods, the rated charging power of the charging piles at the charging station, and the required number of charging time periods for the electric vehicle includes: comparing the charging load margin M. t The rated charging power of the connected charging pile; to obtain the charging load margin M. t The number H of charging piles with a rated charging power greater than the connected charging power i If H i If the number of charging time periods required by the electric vehicle is greater than the required number of charging time periods, then based on the charging load margin M... t The time period for the first electricity price and the time period for the second electricity price are determined based on the relationship between the rated charging power of the connected charging pile and the electricity price; wherein the first electricity price is higher than the second electricity price; and the charging strategy for the electric vehicle is determined based on the time periods for the first electricity price and the second electricity price.

[0012] Optionally, in some embodiments, determining the charging strategy for the electric vehicle based on the charging load margin for each of the rechargeable time periods, the rated charging power of the charging piles at the charging station, and the required number of charging time periods for the electric vehicle includes: comparing the charging load margin M. t The rated charging power of the connected charging pile; to obtain the charging load margin M. t The number H of charging piles with a rated charging power greater than the connected charging power i If H i The number of charging time periods required for the electric vehicle is greater than J. i Then, a target time period set is selected from the N rechargeable time periods; wherein, the target time period set is a continuous set of J. i A charging load margin M t The set of time periods with the largest sum; based on the target set of time periods, determine the charging strategy for the electric vehicle.

[0013] Optionally, in some embodiments, determining the charging strategy for the electric vehicle based on the target time period set includes: determining that there exists a charging load margin M in the target time period set. tIf the charging power is greater than the rated charging power of the connected charging pile, the electric vehicle will be charged at the second electricity price during the target time period; wherein, the orderly charging model of the charging station is equipped with a first electricity price and a second electricity price; the first electricity price is higher than the second electricity price.

[0014] Optionally, in some embodiments, determining the charging strategy for the electric vehicle based on the target time period set includes: determining that there is no charging load margin M in the target time period set. t If the charging power is greater than the rated charging power of the connected charging pile, then the charging start time will be set at the charging load margin M. t The charging period is greater than the rated charging power of the connected charging pile; wherein, the charging start period uses a second electricity price to charge the electric vehicle; the orderly charging model of the charging station is equipped with a first electricity price and a second electricity price; the price of the first electricity price is higher than the price of the second electricity price.

[0015] The beneficial effects of this invention are reflected in the fact that the embodiments of this invention provide a low-power capacity orderly charging management system for charging stations, which includes an orderly charging model for charging stations. This orderly charging model is configured to first receive the charging restriction status and available charging waiting time input by the user; then, based on the available charging waiting time, obtain N available charging time periods for the user's electric vehicle; next, based on the charging restriction status and the N available charging time periods, determine the required number of charging time periods for the electric vehicle; then, obtain the charging load margin for each available charging time period; finally, based on the charging load margin for each available charging time period, the rated charging power of the charging piles in the charging station, and the required number of charging time periods for the electric vehicle, determine the charging strategy for the electric vehicle. In other words, this invention can divide the available charging waiting time input by the user into multiple available charging time periods, then use the user-input charging restriction status to determine the required number of charging time periods for the electric vehicle, and then combine the electricity load of the available charging time periods (represented by the charging load margin) to plan the charging strategy. In this way, grid resources can be rationally utilized, avoiding waste of grid resources and reducing peak-valley load differences. Attached Figure Description

[0016] Figure 1 The present invention provides a module frame for a terminal device;

[0017] Figure 2 An example diagram of a low-power capacity orderly charging management system for a charging station provided by the present invention;

[0018] Figure 3 A flowchart illustrating the execution process of an orderly charging model for a charging station provided by the present invention;

[0019] Figure 4A flowchart illustrating the execution process of another orderly charging model for charging stations provided by the present invention;

[0020] Figure 5 This is a flowchart illustrating the execution process of another orderly charging model for charging stations provided by the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] As the number of charging stations increases, there will be periods of insufficient grid power, while configuring power capacity based on charging power at other times will result in a significant waste of power resources. Therefore, the present invention provides the following embodiments to solve the above problems.

[0023] Please see Figure 1 This application provides a module frame for a terminal device 1 that applies an orderly charging model for charging stations. The terminal device 1 includes at least one processor 10. Figure 1 Only one is shown in the diagram), memory 11, and computer program 12 stored in memory 11 and executable on at least one processor 10. When processor 10 executes computer program 12, it implements the method steps configured for an ordered charging model of any charging station.

[0024] Terminal device 1 can be a computing device such as a desktop computer, laptop, handheld computer, or cloud server. Terminal device 1 may include, but is not limited to, a processor 10 and a memory 11. Those skilled in the art will understand that... Figure 1 This is merely an example of terminal device 1 and does not constitute a limitation on terminal device 1. It may include more or fewer components than shown in the figure, or combine certain components, or different components, such as input / output devices, network access devices, etc.

[0025] The processor 10 may be a central processing unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0026] In some embodiments, the memory 11 may be an internal storage unit of the terminal device 1, such as a hard disk or memory of the terminal device 1. In other embodiments, the memory 11 may be an external storage device of the terminal device 1, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the terminal device 1. Furthermore, the memory 11 may include both internal and external storage units of the terminal device 1. The memory 11 is used to store the operating system, applications, bootloader, data, and other programs, such as the program code of the computer program. The memory 11 can also be used to temporarily store data that has been output or will be output.

[0027] Please see Figure 2 This application provides a low-power capacity orderly charging management system 2 for charging stations, including: an orderly charging model 20 for charging stations.

[0028] The inputs to the orderly charging model 20 at the charging station include: the charging restriction status input by the user and the available charging waiting time. The outputs of the orderly charging model 20 include: the charging strategy for the electric vehicle.

[0029] Please see Figure 3 The orderly charging model 20 of the charging station is configured with the following orderly charging method, including: steps 301-305.

[0030] Step 301: Receive the user's input of the charging limit status and the charging waiting time.

[0031] After an electric vehicle pulls into the charging station, the user can specify their charging requirements. These requirements may include the State of Charge (SOC) status. ltAnd the charging wait time (h).

[0032] Among them, the charging limit state (SOC) lt Used to characterize the state of charge required for charging. For example, the charge-limited state (SOC). lt It can be 60% or 70%. The charging time h can be 4 hours, 8 hours, 24 hours, etc., and this application does not limit it.

[0033] Step 302: Obtain N charging time periods corresponding to the user's electric vehicle based on the charging waiting time.

[0034] After obtaining the charging waiting time h, the electric vehicle is divided into N charging time periods T. i (i = 1, 2, ..., N). The duration of the rechargeable time period is a preset duration.

[0035] For example, if a day of 24 hours is divided into 24 rechargeable time periods, then the duration of each rechargeable time period is 1 hour, which is the preset duration.

[0036] For example, if a day of 24 hours is divided into 48 rechargeable time periods, then the duration of each rechargeable time period is 0.5 hours, which is the preset duration.

[0037] Assuming the current time is 6:00 and the preset duration is 1 hour, if the available charging waiting time is obtained in step 301 as 4 hours, then the four available charging time periods corresponding to the user's electric vehicle can be determined, namely 6:00~7:00, 7:00~8:00, 8:00~9:00, and 9:00~10:00.

[0038] Step 303: Based on the charging limitation status and N available charging time periods, determine the number of charging time periods required for the electric vehicle within the N available charging time periods.

[0039] Then, based on the charging limit state of SOC lt Given N available charging time periods, determine the number of charging time periods J required for the electric vehicle. i For example, N can be 8, and J can be the number of charging time periods required for an electric vehicle. i It can be 5.

[0040] It should be noted that the charging limit state here is SOC. lt This is tied to the capacity of the electric vehicle, i.e., the State of Charge (SOC) based on the charging limit state. lt Given N available charging time periods, determine the number of charging time periods J required for the electric vehicle. i Includes: State of Charge (SOC) based on charging limit statelt Given the electric vehicle's capacity and N available charging time periods, determine the required number of charging time periods J for the electric vehicle. i .

[0041] Step 304: Obtain the charging load margin for each rechargeable time period.

[0042] Among them, the charging load margin is used to characterize the power load during the charging period.

[0043] Here, the charging load margin M t The expression can be:

[0044] M t =(1-A t )S T PF t=T1,…,T N

[0045] Among them, S T The rated capacity of the transformer is given by PF, where PF is the power factor and A is the rated capacity. t ∈[0,1], representing the proportion of the power required by the charging station to charge electric vehicles to the transformer capacity during the j-th time period. It should be noted that the charging load margin M... t The larger the value, the smaller the electrical load during the charging period; conversely, the smaller the value, the greater the charging load margin M. t The smaller the value, the greater the electrical load during that charging period. Therefore, by calculating the charging load margin, charging can be carried out during periods of lower electrical load, thus achieving the goal of orderly charging.

[0046] Step 305: Determine the charging strategy for the electric vehicle based on the charging load margin of each charging time period, the rated charging power of the charging piles at the charging station, and the number of charging time periods required for the electric vehicle.

[0047] Finally, the charging strategy for electric vehicles can be determined based on the charging load margin of each charging time period, the rated charging power of the charging piles at the charging station, and the number of charging time periods required for the electric vehicle.

[0048] In summary, this invention provides a low-power capacity orderly charging management system for charging stations, which includes an orderly charging model for the charging station. This orderly charging model is configured to first receive the charging restriction status and available charging waiting time input by the user; then, based on the available charging waiting time, obtain N available charging time periods for the user's electric vehicle; next, based on the charging restriction status and the N available charging time periods, determine the required number of charging time periods for the electric vehicle; then, obtain the charging load margin for each available charging time period; finally, based on the charging load margin for each available charging time period, the rated charging power of the charging piles at the charging station, and the required number of charging time periods for the electric vehicle, determine the charging strategy for the electric vehicle. In other words, this invention can divide the available charging waiting time input by the user into multiple available charging time periods, then use the user-input charging restriction status to determine the required number of charging time periods for the electric vehicle, and then combine the electricity load of the available charging time periods (represented by the charging load margin) to plan the charging strategy. This method can rationally utilize power grid resources, avoiding waste of power grid resources and reducing peak-valley load differences.

[0049] Optionally, in one embodiment, determining the charging strategy for an electric vehicle based on the charging load margin of each charging time period, the rated charging power of the charging piles at the charging station, and the number of charging time periods required for the electric vehicle may specifically include: determining the electricity price for different charging times based on the charging load margin of each charging time period, the rated charging power of the charging piles at the charging station, and the number of charging time periods required for the electric vehicle; and determining the charging strategy for the electric vehicle based on the electricity price for different charging times.

[0050] In other words, different charging load margins can correspond to different electricity prices. In this embodiment of the invention, the orderly charging model of the charging station can be equipped with a first electricity price and a second electricity price; the first electricity price is higher than the second electricity price. Charging load margins exceeding a preset threshold can be matched with the second electricity price, while charging load margins below the preset threshold can be matched with the first electricity price.

[0051] The aforementioned preset thresholds can be set according to requirements. Of course, in other embodiments, three, four, or more different electricity price matching methods can be set, which is not limited in this application. Since different charging load margins correspond to different electricity prices, users can be guided to actively choose low-price periods with larger charging load margins for charging. This method can also achieve the purpose of orderly charging. Alternatively, the orderly charging model of the charging station can automatically select low-price periods with larger charging load margins to determine the charging strategy.

[0052] Please see Figure 4The above-mentioned determination of the electricity price for different charging times based on the charging load margin of each charging time period, the rated charging power of the charging piles of the charging station, and the number of charging time periods required by the electric vehicle can specifically include: steps 401-403.

[0053] Step 401: Compare the charging load margin with the rated charging power of the connected charging pile.

[0054] That is, compare the charging load margin M. t With the rated charging power P of the connected charging pile i Size.

[0055] Step 402: Obtain the number of charging load margins greater than the rated charging power of the connected charging piles.

[0056] Among them, the number of charging load margins greater than the rated charging power of the connected charging piles is H. i H i =|A i |,A i ={t|M t ≥P i ,t=T1,T2,…,T i}

[0057] In the above, |A i | is a set, representing A i The number of elements in the array.

[0058] Step 403: If the number of charging load margins that are greater than the rated charging power of the connected charging piles is less than the number of charging time periods required by the electric vehicle, then the charging price for all time periods is determined as the first price.

[0059] That is, compare H i and J i Size.

[0060] It should be noted that if H i <J i (H i M indicates the parking time period t >P i The number of time periods, J i The number of time periods during which the electric vehicle needs to be charged indicates that the system cannot meet the user's input charging demand during the electric vehicle's parking time (although it cannot meet the demand, it can charge to the maximum extent possible); at this time, it is determined that the power grid is under heavy load, and a higher electricity price is used for continuous charging.

[0061] Optionally, after determining the charging price for all time periods as the first electricity price, the orderly charging model of the charging station is further configured to: send a prompt message to the user; wherein the prompt message includes charging the electric vehicle using the first electricity price.

[0062] In other words, users can determine whether to accept peak electricity pricing for charging based on the prompts.

[0063] In one embodiment, the orderly charging model for the charging station is further configured to: calculate the total power required to charge all electric vehicles within the charging station during the charging wait time; and determine that the total power is less than the maximum power of the power grid.

[0064] Specifically, the total power of the power grid is calculated using the following formula, including:

[0065] P tot =∑P EV Among them, P tot P represents the total power required to charge all electric vehicles within the charging station during the charging wait time; EV This indicates the power required by each electric vehicle during the charging wait time; E EV The energy required by each electric vehicle during the charging wait time is indicated by h; the charging wait time is indicated by h; and the charging time of the electric vehicle is indicated by t. SOC r This indicates the charging limitation status of the electric vehicle; V EV This indicates the battery voltage of the electric vehicle; Ah rating This indicates the rated ampere-hours of the electric vehicle's battery.

[0066] Please see Figure 5 Optionally, the above-mentioned determination of the charging strategy for electric vehicles based on the charging load margin of each charging time period, the rated charging power of the charging piles of the charging station, and the number of charging time periods required for the electric vehicle may further include steps 501-504.

[0067] Step 501: Compare the charging load margin with the rated charging power of the connected charging pile.

[0068] That is, compare the charging load margin M. t With the rated charging power P of the connected charging pile i Size.

[0069] Step 502: Obtain the number of charging load margins that are greater than the rated charging power of the connected charging piles.

[0070] Among them, the number of charging load margins greater than the rated charging power of the connected charging piles is H.i H i =|A i |,A i ={t|M t ≥P i ,t=T1,T2,…,T i}

[0071] In the above, |A i | is a set, representing A i The number of elements in the array.

[0072] Step 503: If the number of charging load margins that are greater than the rated charging power of the connected charging piles is greater than the number of charging time periods required by the electric vehicle, then select the target time period set from the N available charging time periods.

[0073] That is, compare H i and J i Size.

[0074] Wherein, the target time period set is a continuous J i A charging load margin M t The set of time periods with the largest sum.

[0075] Step 504: Determine the charging strategy for electric vehicles based on the target time period set.

[0076] Since the target time period set is continuous J i A charging load margin M t The set of time periods with the largest sum is used to determine the charging strategy for electric vehicles, which can maximize peak shaving and valley filling and alleviate grid pressure.

[0077] Here, the first time period in the target time period set is determined as the starting time period for electric vehicles. The starting time period for electric vehicle charging can be determined using the following formula:

[0078]

[0079] in, This indicates the starting time of the electric vehicle.

[0080] Optionally, in one embodiment, determining the charging strategy for electric vehicles based on a target time period set may specifically include: determining that there exists a charging load margin M in the target time period set. t If the charging power is greater than the rated charging power of the connected charging pile, the electric vehicle will be charged at the second electricity price during the target time period.

[0081] The orderly charging model for charging stations includes a first electricity price and a second electricity price; the first electricity price is higher than the second electricity price.

[0082] Optionally, in one embodiment, the above-mentioned determination of the charging strategy for electric vehicles based on the target time period set may further include: determining that there is no charging load margin M in the target time period set. t (t=1,2,…,T i If the charging power is greater than the rated charging power of the connected charging pile, then the charging start time will be set at the charging load margin M. t (t=1,2,…,T i The period during which the charging power of the connected charging pile is greater than the rated charging power of the charging pile.

[0083] It should be noted that if the target time period set does not contain M from the start time period until the car leaves... t >P i In such cases, it is necessary to adjust the start time of off-peak electricity pricing to the period when M exists. t >P i The location is designed to ensure that users can achieve SOC while taking advantage of off-peak electricity rates. lt The starting time period at this time is:

[0084]

[0085] in,

[0086] in, Indicates the starting time of the electric vehicle; M represents t >P i The time period; express The number of.

[0087] At this time, the period during which users use off-peak electricity pricing (secondary pricing) is... Where D represents the ratio of the duration of off-peak electricity pricing to the duration of parking during the autonomous response time-of-use pricing period, which is constant. The rest are the peak electricity pricing (first price) periods. Of course, during peak electricity pricing, users can also choose whether to extend their charging time.

[0088] Optionally, in one embodiment, the above-mentioned determination of the electric vehicle charging strategy based on the charging load margin of each charging time period, the rated charging power of the charging piles of the charging station, and the number of charging time periods required by the electric vehicle may further include: comparing the charging load margin M. t The rated charging power of the connected charging pile; where i = 1, 2, ..., N; obtain the charging load margin M. t (t=1,2,…,T iThe number H is greater than the rated charging power of the connected charging piles. i If H i If the number of charging time periods required for the electric vehicle is greater than the required number of charging time periods, then the charging load margin M is used as the basis. t (t=1,2,…,T i The relationship between the electric vehicle's electricity price and the rated charging power of the connected charging piles is used to determine the time periods for the first and second electricity prices; wherein the first electricity price is higher than the second electricity price; and the charging strategy for the electric vehicle is determined based on the time periods for the first and second electricity prices.

[0089] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0090] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps described in the various method embodiments above.

[0091] This application provides a computer program product that, when run on a mobile terminal, enables the mobile terminal to implement the steps described in the above-described method embodiments.

[0092] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying computer program code to a photographing device / terminal device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0093] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0094] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0095] In the embodiments provided in this application, it should be understood that the disclosed apparatus / network devices and methods can be implemented in other ways. For example, the apparatus / network device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0096] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0097] The embodiments described above are merely illustrative of the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

[0098] In the description of embodiments of the present invention, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0099] In the description of the embodiments of the present invention, it should be understood that "-" and "~" represent a range of two numerical values, and this range includes the endpoints. For example, "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0100] In the description of embodiments of the present invention, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

Claims

1. A low-power capacity orderly charging management system for charging stations, characterized in that, include: The orderly charging model for charging stations is configured as follows: Receive user input regarding charging limit status and available charging time; The charging limitation state represents the state of charge required for charging; Based on the charging wait time, N charging time periods corresponding to the user's electric vehicle are obtained; wherein, the duration of each charging time period is a preset duration; Based on the charging restriction status and the N charging time periods, determine the number of charging time periods required for the electric vehicle within the N charging time periods; Obtain the charging load margin for each of the rechargeable time periods; wherein the charging load margin is used to characterize the power load for that rechargeable time period; Based on the charging load margin of each available charging time period, the rated charging power of the charging piles at the charging station, and the number of charging time periods required by the electric vehicle, a charging strategy for the electric vehicle is determined; including: comparing the charging load margin. The rated charging power of the connected charging pile; to obtain the charging load margin. The number of charging piles connected to the line has a higher rated charging power than the number of charging piles connected to the line. ;like Greater than the number of charging time periods required for the electric vehicle Then, a target time period set is selected from the N rechargeable time periods; wherein, the target time period set is continuous. Individual charging load margin The set of time periods with the largest sum; based on the target time period set, determine the charging strategy for the electric vehicle; determine that there is a charging load margin in the target time period set. If the charging power is greater than the rated charging power of the connected charging pile, then the electric vehicle will be charged at the second electricity price during the target time period; if it is determined that there is no charging load margin in the target time period, then... If the charging power is greater than the rated charging power of the connected charging pile, then the charging start time period will be set within the charging load margin. The charging period is greater than the rated charging power of the connected charging pile; wherein, the charging start period uses the second electricity price to charge the electric vehicle; the orderly charging model of the charging station is equipped with a first electricity price and a second electricity price; the price of the first electricity price is higher than the price of the second electricity price.

2. The low-power capacity orderly charging management system for charging stations according to claim 1, characterized in that, Based on the charging load margin of each available charging time period, the rated charging power of the charging piles at the charging station, and the required number of charging time periods for the electric vehicle, a charging strategy for the electric vehicle is determined, including: The electricity price for different charging times is determined based on the charging load margin of each charging time period, the rated charging power of the charging piles of the charging station, and the number of charging time periods required by the electric vehicle. The charging strategy for the electric vehicle is determined based on the electricity price for the different charging times.

3. The low-power capacity orderly charging management system for charging stations according to claim 2, characterized in that, Based on the charging load margin of each available charging time period, the rated charging power of the charging piles at the charging station, and the number of charging time periods required by the electric vehicle, the electricity price for different charging times is determined, including: Compare charging load margin The rated charging power of the connected charging pile; Obtain charging load margin The number of charging piles connected to the line has a higher rated charging power than the number of charging piles connected to the line. ; like If the number of charging time periods required for the electric vehicle is less than the number of charging time periods, then the charging price for all time periods is determined as the first price; wherein, the orderly charging model of the charging station is equipped with the first price and the second price; the price of the first price is higher than the price of the second price.

4. The low-power capacity orderly charging management system for charging stations according to claim 3, characterized in that, After determining the charging price for all time periods as the first price, the orderly charging model for the charging station is further configured as follows: A prompt message is sent to the user; wherein the prompt message includes charging the electric vehicle using the first electricity price.

5. The low-power capacity orderly charging management system for charging stations according to claim 3, characterized in that, The orderly charging model for the charging station is further configured as follows: Calculate the total power required to charge all electric vehicles within the charging station during the charging wait time; It is determined that the total power is less than the maximum power of the power grid.

6. The low-power capacity orderly charging management system for charging stations according to claim 5, characterized in that, The total power of the power grid is calculated using the following formula, including: ； in, This represents the total power required to charge all electric vehicles within the charging station during the charging wait time. This indicates the power required by each electric vehicle during the charging wait time; ; The energy required by each electric vehicle during the charging wait time is indicated by h; the charging wait time is indicated by h; and the charging time of the electric vehicle is indicated by t. ; This indicates the charging limitation status of the electric vehicle; This indicates the battery voltage of the electric vehicle; This indicates the rated ampere-hours of the electric vehicle's battery.

7. The low-power capacity orderly charging management system for charging stations according to claim 1, characterized in that, The process of determining the charging strategy for the electric vehicle based on the charging load margin for each available charging time period, the rated charging power of the charging piles at the charging station, and the required number of charging time periods for the electric vehicle includes: Compare charging load margin The rated charging power of the connected charging pile; Obtain charging load margin The number of charging piles connected to the line has a higher rated charging power than the number of charging piles connected to the line. ; like If the number of charging time periods required by the electric vehicle is greater than the required number of charging time periods, then based on the charging load margin... The time period for the first electricity price and the time period for the second electricity price are determined based on the relationship between the rated charging power of the connected charging piles and the electricity price; wherein the first electricity price is higher than the second electricity price. The charging strategy for the electric vehicle is determined based on the time period of the first electricity price and the time period of the second electricity price.

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