A scheduling method and system for intelligent charging of new energy electric vehicles

Abstract

The present invention relates to the technical field of electric vehicle charging, and specifically to a scheduling method and system for intelligent charging of new energy electric vehicles. The method comprises the following steps: obtaining an expected pick-up time for an electric vehicle to be charged, and determining an expected parking time for the electric vehicle to be charged based on the expected pick-up time and the current time; preliminarily sorting the electric vehicles to be charged based on the expected pick-up time to obtain a first charging sequence; determining an expected parking time for the electric vehicles to be charged based on the expected pick-up time and the current time, and screening out electric vehicles to be charged with the same expected parking time based on the first charging sequence to obtain a first set of electric vehicles of the same level; obtaining a target charging amount for each electric vehicle to be charged in the first set of electric vehicles of the same level; and being able to maintain the stability of the charging voltage, reduce the impact of too many charging vehicles on electricity consumption, and improve the utilization efficiency of the charging time.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging, and in particular to a scheduling method and system for intelligent charging of new energy electric vehicles. Background Art

[0002] Electric vehicles are gaining increasing attention worldwide for their energy conservation, emission reduction, and environmental benefits, and are being actively promoted and applied in multiple sectors. However, as the number of electric vehicles continues to grow, the disorderly charging of a large number of them can increase the peak-to-valley variation in grid load, leading to increased network losses and impacting the power quality of the distribution system, posing a threat to the safe and stable operation of the grid. Reasonable optimization and dispatch strategies can effectively limit the negative impact of disorderly electric vehicle charging on the power system, reduce the peak-to-valley variation in distribution system load, improve grid security and economic efficiency, enrich grid operation, regulation, and control methods, enhance the charging experience for users, and promote the healthy and rapid development of the electric vehicle industry.

[0003] The existing centralized dispatching mode of electric vehicles will cause voltage instability when multiple electric vehicles are charging at the same time. After charging is completed, the idle charging piles must wait for the previous vehicle to leave in time before they can continue to serve the vehicles waiting behind. This fails to give full play to the equipment utilization efficiency and makes the charging time utilization efficiency low.

[0004] To this end, we propose a scheduling method and system for intelligent charging of new energy electric vehicles to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a scheduling method and system for intelligent charging of new energy electric vehicles to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a scheduling method and system for intelligent charging of new energy electric vehicles, the method comprising the following steps:

[0007] S1: Obtaining an expected pickup time for the electric vehicle to be charged, and determining an expected parking time for the electric vehicle to be charged based on the expected pickup time and the current time;

[0008] Preliminarily sorting the electric vehicles to be charged based on the expected pickup time to obtain a first charging sequence;

[0009] S2: determining the expected parking time of the electric vehicle to be charged according to the expected pickup time and the current time, and filtering out electric vehicles to be charged with the same expected parking time based on the first charging sequence to obtain a first set of electric vehicles of the same level;

[0010] Obtaining a target charge capacity of each to-be-charged electric vehicle in a first electric vehicle set of the same level, and sorting the first electric vehicles of the same level in ascending order based on the target charge capacity to obtain a second charging sequence;

[0011] S3: extracting electric vehicles to be charged with the same target charging amount based on the first set of electric vehicles of the same level to obtain a second set of electric vehicles of the same level;

[0012] Obtaining a charging power of the electric vehicle to be charged to obtain a first charging power;

[0013] determining a target charging sequence based on the first charging sequence, the second charging sequence, and the first charging power;

[0014] determining a target charging power based on the target charging time and the expected parking time, wherein the target charging power is the first charging power or the second charging power;

[0015] S4: Dispatching the electric vehicles to be charged based on the target charging sequence and the target charging power to obtain a dispatch result;

[0016] S5: Based on the scheduling result, the electric vehicles to be charged are charged through the shared charging piles.

[0017] By adopting the above technical solution, the charging power of the electric vehicle to be charged is determined according to the expected pick-up time, expected parking time and target charging amount of the electric vehicle to be charged, the charging power is adjusted according to the pick-up time, and the number of electric vehicles to be charged at the same time is adjusted according to the available power. The charging of the electric vehicles to be charged is scheduled according to the pick-up time, the charging power and the number of electric vehicles to be charged, the stability of the charging voltage is maintained, the impact of too many charging vehicles on electricity consumption is reduced, and the utilization efficiency of the charging time is improved.

[0018] Preferably, the step of determining the target charging power based on the target charging time and the expected parking time, wherein the charging power is the first charging power or the second charging power, includes:

[0019] determining a target charging time based on the first charging power and the target charging amount;

[0020] Compare the target charging time with the expected parking time to determine whether the expected parking time is consistent with the target charging time;

[0021] If it is determined that the expected parking time is consistent with the target charging time, the first charging power is used as the target charging power;

[0022] If it is determined that the expected parking time is inconsistent with the target charging time, the second charging power is used as the target charging power.

[0023] Preferably, the step of determining the target charging sequence based on the first charging sequence, the second charging sequence, and the first charging power includes:

[0024] Obtaining electric vehicles to be charged within the same expected vehicle pickup time based on the first charging sequence, obtaining target charge amounts corresponding to the electric vehicles to be charged within the same expected vehicle pickup time based on the second charging sequence; determining a second charging power for the electric vehicles to be charged based on the expected parking time and the target charge amount; and counting the number of electric vehicles to be charged within the same expected vehicle pickup time.

[0025] When the target charging time is equal to the expected parking time, the second charging sequence is directly used as the target charging sequence;

[0026] When the target charging time is less than the expected parking time, the electric vehicle to be charged within the expected pickup time is taken as the target charging vehicle, and it is determined whether the number of electric vehicles to be charged within the same expected pickup time is greater than 1. If it is less than or equal to 1, the electric vehicle to be charged within the next expected pickup time is taken as the second charging vehicle to obtain the target charging sequence; if it is greater than 1, the other electric vehicles to be charged within the same expected pickup time are taken as the second charging vehicle to obtain the target charging sequence;

[0027] When the target charging time is greater than the expected parking time, the overall required power within the same expected car pickup time is obtained, and it is determined whether the overall required power exceeds the preset power threshold. A judgment result is obtained, and the target charging sequence is determined based on the judgment result, wherein the judgment result is that the overall required power exceeds the preset power threshold or the overall required power does not exceed the preset power threshold.

[0028] Preferably, the step of determining the second charging power of the electric vehicle to be charged based on the expected parking time, the target charging amount and the charging start time includes: obtaining the charging start time of the electric vehicle to be charged; obtaining the target charging amount of the electric vehicle to be charged and the expected pick-up time; determining the target charging time based on the charging start time and the expected pick-up time, and determining the target required charging power based on the target charging time and the target charging amount to obtain the second charging power.

[0029] Preferably, the step of determining the target charging sequence based on the judgment result includes:

[0030] If the overall required power does not exceed the preset power threshold, the overall required power is used as the overall charging power.

[0031] When the judgment result is that the overall required power exceeds the preset power threshold, the maximum power value in the preset power threshold is used as the overall charging power; the overall charging power is divided and rounded based on the second charging power, and the electric vehicles to be charged that meet the rounded charging power are used as target charging vehicles, and the users corresponding to the remaining electric vehicles to be charged that cannot complete the full charging are reminded to modify the expected pick-up time, and the electric vehicles to be charged within the next expected pick-up time are used as the second charging vehicles to obtain the target charging sequence.

[0032] Preferably, the step of reminding users corresponding to the remaining electric vehicles to be charged that cannot be fully charged to modify the expected vehicle pickup time includes: counting the number of electric vehicles to be charged within the same expected vehicle pickup time based on the second electric vehicle set of the same level to obtain a target number of simultaneously charged vehicles, and recording the electric vehicles to be charged corresponding to the target number of simultaneously charged vehicles as target simultaneously charged vehicles;

[0033] Determine whether the target number of vehicles charging simultaneously exceeds the preset vehicle number threshold;

[0034] If it is determined that the target number of simultaneously charged vehicles does not exceed the preset vehicle number threshold, the electric vehicles to be charged are charged in sequence according to the target charging sequence;

[0035] If it is determined that the target number of simultaneously charged vehicles exceeds the preset vehicle number threshold, the number of electric vehicles to be charged that exceeds the threshold is calculated based on the target number of simultaneously charged vehicles and the preset vehicle number threshold to obtain the excess number; a reminder is sent to the user corresponding to the target simultaneously charged vehicle to modify the expected pick-up time and a new expected pick-up time is recommended to the user as the recommended pick-up time; user feedback and user feedback time are obtained, and the user feedback includes user refusal to modify and user successful modification; based on the user feedback time sequence, the electric vehicles to be charged that have been successfully modified by the user are obtained to obtain the target modified vehicle, and the number of target modified vehicles is counted until it is consistent with the excess number; the expected pick-up time updated by the user corresponding to the target modified vehicle is obtained to obtain the target pick-up time; the difference between the target pick-up time and the recommended pick-up time is calculated to obtain the modified time difference; the difference between the target pick-up time and the expected pick-up time is calculated to obtain the actual impact time difference; a priority index is determined based on the modified time difference and the actual impact time difference, the target modified vehicle is prioritized for the next time based on the priority index, and the target modified vehicle is charged according to the priority ranking.

[0036] Preferably, the step of charging the electric vehicle to be charged through the shared charging pile based on the scheduling result includes:

[0037] Obtaining information about shared charging piles, including the number and location of shared charging piles. Each shared charging pile has a unique identifier.

[0038] Divide the parking area into target charging areas based on the locations of shared charging piles, where each target charging area corresponds to at least one shared charging pile.

[0039] Obtaining electric vehicles to be charged in a target charging area, dividing the number of electric vehicles to be charged based on the number of shared charging piles in the target charging area, and matching the electric vehicles to be charged with corresponding shared charging piles based on unique identifiers to obtain target shared charging piles;

[0040] Based on the scheduling result, the electric vehicle to be charged is matched with the target shared charging pile in the corresponding target charging area, and the electric vehicle to be charged is charged based on the target shared charging pile.

[0041] A scheduling system for intelligent charging of new energy electric vehicles, applied to any of the above-mentioned scheduling methods for intelligent charging of new energy electric vehicles, comprises:

[0042] A first data acquisition module is used to obtain an expected pickup time of the electric vehicle to be charged, and determine an expected parking time of the electric vehicle to be charged based on the expected pickup time and the current time;

[0043] Preliminarily sorting the electric vehicles to be charged based on the expected pickup time to obtain a first charging sequence;

[0044] a second data acquisition module, configured to determine an expected parking time of the electric vehicle to be charged based on the expected pickup time and the current time, and filter out electric vehicles to be charged with the same expected parking time based on the first charging sequence to obtain a first set of electric vehicles of the same level;

[0045] Obtaining a target charge capacity of each to-be-charged electric vehicle in a first electric vehicle set of the same level, and sorting the first electric vehicles of the same level in ascending order based on the target charge capacity to obtain a second charging sequence;

[0046] A charging sequence determination module is configured to extract electric vehicles to be charged with the same target charging amount based on the first set of electric vehicles of the same level to obtain a second set of electric vehicles of the same level;

[0047] Obtaining a charging power of the electric vehicle to be charged to obtain a first charging power;

[0048] determining a target charging sequence based on the first charging sequence, the second charging sequence, and the first charging power;

[0049] determining a target charging power based on the target charging time and the expected parking time, wherein the target charging power is the first charging power or the second charging power;

[0050] The charging module is used to schedule the electric vehicles to be charged based on the target charging sequence and the target charging power to obtain a scheduling result; and charge the electric vehicles to be charged based on the scheduling result.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] 1. By determining the charging power of the electric vehicles to be charged based on the expected pick-up time, expected parking time, and target charge amount of the electric vehicles to be charged, the charging power is adjusted according to the pick-up time, and the number of electric vehicles to be charged at the same time is adjusted according to the available power. The charging of the electric vehicles to be charged is scheduled based on the pick-up time, charging power, and the number of electric vehicles to be charged, maintaining the stability of the charging voltage, reducing the impact of too many charging vehicles on electricity consumption, and improving the efficiency of charging time;

[0053] 2. Based on the relationship between the target charging time and the expected parking time, the charging of electric vehicles to be charged is scheduled, and users of electric vehicles to be charged that cannot complete charging in time are reminded and the charging data is modified, thereby reducing unnecessary troubles caused to users due to the inability to charge in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0055] Figure 1 Schematic diagram of the method flow of the present invention;

[0056] Figure 2 This is a system structure diagram of the present invention.

[0057] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0058] 1. First data acquisition module; 2. Second data acquisition module; 3. Charging sequence determination module; 4. Charging module. DETAILED DESCRIPTION

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0060] Example 1

[0061] See also Figures 1 to 2 The present invention provides a scheduling method and system technical solution for intelligent charging of new energy electric vehicles: A scheduling method for intelligent charging of new energy electric vehicles, comprising the following steps:

[0062] S1: Obtaining an expected pickup time for the electric vehicle to be charged, and determining an expected parking time for the electric vehicle to be charged based on the expected pickup time and the current time;

[0063] Preliminarily sorting the electric vehicles to be charged based on the expected pickup time to obtain a first charging sequence;

[0064] S2: determining the expected parking time of the electric vehicle to be charged according to the expected pickup time and the current time, and filtering out electric vehicles to be charged with the same expected parking time based on the first charging sequence to obtain a first set of electric vehicles of the same level;

[0065] Obtaining a target charge capacity of each to-be-charged electric vehicle in a first electric vehicle set of the same level, and sorting the first electric vehicles of the same level in ascending order based on the target charge capacity to obtain a second charging sequence;

[0066] S3: extracting electric vehicles to be charged with the same target charging amount based on the first set of electric vehicles of the same level to obtain a second set of electric vehicles of the same level;

[0067] Obtaining a charging power of the electric vehicle to be charged to obtain a first charging power;

[0068] determining a target charging sequence based on the first charging sequence, the second charging sequence, and the first charging power;

[0069] determining a target charging power based on the target charging time and the expected parking time, wherein the target charging power is the first charging power or the second charging power;

[0070] S4: Dispatching the electric vehicles to be charged based on the target charging sequence and the target charging power to obtain a dispatch result;

[0071] S5: charging the electric vehicle to be charged through the shared charging pile based on the scheduling result;

[0072] It should be noted that sorting the electric vehicles to be charged based on the expected pick-up time means that the later the pick-up time is, the further back the electric vehicles to be charged will be in the queue, and the earlier the pick-up time is, the further ahead the electric vehicles to be charged will be in the queue; for example, if the charging queue starts at 11 a.m., one electric vehicle sets the pick-up time at 3 p.m., and another electric vehicle sets the pick-up time at 6 p.m., then the charging priority of the electric vehicle with the expected pick-up time at 3 p.m. is higher than the charging priority of the electric vehicle with the expected pick-up time at 6 p.m.; the target charging capacity is determined according to the current battery capacity and the total battery capacity, and the total capacity is the maximum capacity that the battery of the electric vehicle to be charged can store;

[0073] Preset the target battery capacity. For example, if the current battery capacity of an electric vehicle to be charged is 30%, and its battery capacity is 30 kWh, and it is ready to be charged to 50%, then the target charging capacity required is 20% of the battery capacity, which means that 6 kW of charging is required. Users can preset the target battery capacity according to their needs. The target charging capacity is determined based on the target battery capacity and the battery capacity, which can better determine the charging time required for the electric vehicle.

[0074] The step of determining the target charging power based on the target charging time and the expected parking time, wherein the charging power is the first charging power or the second charging power, includes:

[0075] determining a target charging time based on the first charging power and the target charging amount;

[0076] Compare the target charging time with the expected parking time to determine whether the expected parking time is consistent with the target charging time;

[0077] If it is determined that the expected parking time is consistent with the target charging time, the first charging power is used as the target charging power;

[0078] If it is determined that the expected parking time is inconsistent with the target charging time, the second charging power is used as the target charging power;

[0079] The step of determining a target charging sequence based on the first charging sequence, the second charging sequence, and the first charging power includes:

[0080] Obtaining electric vehicles to be charged within the same expected vehicle pickup time based on the first charging sequence, obtaining target charge amounts corresponding to the electric vehicles to be charged within the same expected vehicle pickup time based on the second charging sequence; determining a second charging power for the electric vehicles to be charged based on the expected parking time and the target charge amount; and counting the number of electric vehicles to be charged within the same expected vehicle pickup time.

[0081] When the target charging time is equal to the expected parking time, the second charging sequence is directly used as the target charging sequence;

[0082] When the target charging time is less than the expected parking time, the electric vehicle to be charged within the expected pickup time is taken as the target charging vehicle, and it is determined whether the number of electric vehicles to be charged within the same expected pickup time is greater than 1. If it is less than or equal to 1, the electric vehicle to be charged within the next expected pickup time is taken as the second charging vehicle to obtain the target charging sequence; if it is greater than 1, the other electric vehicles to be charged within the same expected pickup time are taken as the second charging vehicle to obtain the target charging sequence;

[0083] When the target charging time is greater than the expected parking time, the overall power demand within the same expected vehicle pickup time is obtained to determine whether the overall power demand exceeds the preset power threshold. If not, the overall power demand is used as the overall charging power; if exceeded, the maximum power value within the preset power threshold is used as the overall charging power; the overall charging power is divided and rounded based on the second charging power, and the electric vehicle to be charged that meets the rounded charging power is used as the target charging vehicle, and the users corresponding to the remaining electric vehicles to be charged that cannot complete a full charge are reminded to modify the expected vehicle pickup time. At the same time, the electric vehicle to be charged within the next expected vehicle pickup time is used as the second charging vehicle to obtain a target charging sequence;

[0084] It should be noted that rounding means that when the total power is 3 kilowatts, the charging power of one electric vehicle is 1, and the charging power of another electric vehicle is 1.3. After the power is divided between the two electric vehicles, 0.7 remains. At this time, the charging power of the other electric vehicle is 0.8. In this case, only two electric vehicles can be charged. The third vehicle is not within the rounding range. The result of rounding is 2 electric vehicles to be charged; the second charging power refers to the charging power after adjusting the first charging power when the target charging time is inconsistent with the expected parking time;

[0085] Specifically, when the target charging time is less than the expected parking time, assuming that the target charging time required to charge to the target charge amount under normal power is 2 hours and the expected parking time is 3 hours, the charging power can be reduced. The number of vehicles within the same expected pickup time is counted and the charging power is distributed to other electric vehicles within the same expected pickup time. If there is only one electric vehicle, the excess charging power is used to charge the next batch of electric vehicles within the expected pickup time to obtain the target charging sequence.

[0086] When the target charging time is greater than the expected parking time, assuming that the target charging time to reach the target charge amount under normal power is 3 hours and the expected parking time is 2 hours, the charging power can be increased, and the number of vehicles within the same expected time can be counted. It is also determined that the charging power of the entire charging pile can simultaneously meet the number of electric vehicles that can be fully charged. Modification reminders are issued to users of the remaining electric vehicles that cannot complete a full charge, and charging data reservations are recommended. At the same time, the remaining scattered charging power is used to charge the next batch of electric vehicles with the expected pick-up time, thus obtaining the target charging sequence;

[0087] The system determines the number of electric vehicles that can be fully charged simultaneously at the charging station. It then issues reminders and recommends reserving charging data to users of the remaining electric vehicles that cannot be fully charged. The remaining scattered charging power is then used to charge the next batch of electric vehicles expected to be picked up at the time of their pickup. If there is enough time, the charging power is allocated; if not, the charging power is allocated.

[0088] During the vehicle pickup time, the power is adjusted so that the target charging amount can be completed just in time, and the excess power can be used to charge another electric vehicle. Assuming that A's target charging time is sufficient during A's vehicle pickup time, and A is the electric vehicle with the earliest vehicle pickup time, and E's situation is the same as A, but C's vehicle pickup time is longer, then A and C can be charged at the same time, and the user of E can be reminded to modify the scheduled charging first, because the remaining charging power is not enough to meet E's usage, but C can be charged in advance. In this way, when CD are charging at the same time, C is charged in advance, and the extra charging power can speed up the charging of D, thereby completing the charging of other subsequent vehicles in advance and improving the charging efficiency.

[0089] If the time for picking up the vehicle is short, the charging is done at high power on one side, and at low power on the other side. If there is surplus power, charging is started in sequence according to different pick-up times. The time when the first batch of vehicles is fully charged is predicted. The time from the time when the first batch of vehicles is fully charged to the time when the second batch of vehicles is picked up is used as the charging time for the second batch of vehicles. It is judged whether the target charging time is sufficient. If it is sufficient, normal power is used for charging. If not, the power is adjusted for charging, and the remaining power is used to charge the third batch of vehicles. And so on, charging is done in sequence. Match the vehicles with sufficient time with those with insufficient time. For example, if the time for A is insufficient and the time for D is sufficient, A and D can be charged at the same time, with less power given to D and more power given to A. Fast charging is used for vehicles with short pick-up time, and the surplus power is distributed to vehicles with long pick-up time for slow charging. Charging scheduling is completed according to the number of vehicles charging at the same time and the pick-up time, which can improve charging efficiency and enable more vehicles to complete charging within the pick-up time.

[0090] The step of determining a second charging power for the electric vehicle to be charged based on the expected parking time, the target charging amount, and the charging start time includes: obtaining the charging start time for the electric vehicle to be charged; obtaining the target charging amount and the expected vehicle pickup time for the electric vehicle to be charged; determining a target charging time based on the charging start time and the expected vehicle pickup time, and determining a target required charging power based on the target charging time and the target charging amount to obtain the second charging power;

[0091] Specifically, assuming that the charging start time is 1 pm, the expected pick-up time is 5 pm, and the target charging capacity is 2 kilowatts, the charging power at this time is 0.5 kilowatts per hour. If the first charging power is kilowatts per hour, the first charging power needs to be reduced, and the reduced first charging power is used as the second charging power of the electric vehicle to be charged.

[0092] The step of reminding users corresponding to the remaining electric vehicles to be charged that cannot be fully charged to modify the expected vehicle pickup time includes: counting the number of electric vehicles to be charged within the same expected vehicle pickup time based on the second set of electric vehicles of the same level, obtaining a target number of simultaneously charged vehicles, and recording the electric vehicles to be charged corresponding to the target number of simultaneously charged vehicles as the target simultaneously charged vehicles;

[0093] Determine whether the target number of vehicles charging simultaneously exceeds the preset vehicle number threshold;

[0094] If it is determined that the target number of simultaneously charged vehicles does not exceed the preset vehicle number threshold, the electric vehicles to be charged are charged in sequence according to the target charging sequence;

[0095] If it is determined that the target number of simultaneously charged vehicles exceeds the preset vehicle number threshold, the number of electric vehicles to be charged that exceeds the threshold is calculated based on the target number of simultaneously charged vehicles and the preset vehicle number threshold to obtain the excess number; a reminder is sent to the user corresponding to the target simultaneously charged vehicle to modify the expected pick-up time and a new expected pick-up time is recommended to the user as the recommended pick-up time; user feedback and user feedback time are obtained, and the user feedback includes user rejection of modification and user successful modification; based on the user feedback time sequence, the electric vehicles to be charged that the user has successfully modified are obtained to obtain the target modified vehicles, and the number of target modified vehicles is counted until it is consistent with the excess number; the expected pick-up time updated by the user corresponding to the target modified vehicle is obtained to obtain the target pick-up time; the difference between the target pick-up time and the recommended pick-up time is calculated to obtain the modified time difference; the difference between the target pick-up time and the expected pick-up time is calculated to obtain the actual impact time difference; a priority index is determined based on the modified time difference and the actual impact time difference, the target modified vehicles are prioritized for the next time based on the priority index, and the target modified vehicles are charged according to the priority ranking;

[0096] Specifically, assuming that there are 5 target vehicles charging at the same time, and the preset vehicle number threshold is 3, there will be 2 extra electric vehicles that cannot be charged at this time, then a reminder to modify the scheduled charging data is sent to the users of the 5 electric vehicles, and recommended scheduled charging data is provided, and the first two users who agree to modify the feedback are obtained, and the corresponding numbers of the electric vehicles that meet the number are determined and charged; and the modified data of the first two users who feedback are obtained, and the difference between the modified data and the recommended data is calculated, and the modified data is arranged in descending order according to the modified difference, and the arrangement order is used as the priority of the next charging, and the priority index of the next charging is determined based on the data difference. For example, the pick-up time of the first car is 3 o'clock, and the recommended time is 5 o'clock in the afternoon, and the user changes it to 4 o'clock in the afternoon; the pick-up time of the second car is 3 o'clock, and the recommended time is 5 o'clock, and the user changes it to 6 o'clock in the afternoon, which means that the priority of the second car is higher than the first car during the next charging; and the actual impact time difference of the first car is calculated to be 1 hour, and the actual impact time difference of the second car is three hours. According to the actual impact time difference and the modification time difference, based on the correlation function Calculate the priority index, where Ts represents the actual impact time difference and Tx represents the modification time difference. Sort the electric vehicles in descending order according to the priority index as the priority for the next charging;

[0097] It should be noted that the first charging power refers to the charging power most suitable for the electric vehicle to be charged, and the most suitable refers to the charging power that protects battery life and improves charging efficiency; the preset vehicle quantity threshold refers to the number of electric vehicles that can be normally charged simultaneously by the charging pile within the target charging amount and the time period;

[0098] The modified time difference means that when the expected pick-up time is 3 pm, the user is recommended to modify the expected pick-up time to 6 pm, and the expected pick-up time actually modified by the user is 5 pm, which is used as the first modified target charging data. At this time, the closeness of the two data is the difference of minus 1 hour. When the user actually modifies the expected pick-up time to 5:30 pm, which is used as the second modified target charging data, the closeness of the two data is minus 0.5 hours. It can be seen that the modification difference between the first modified target charging data and the recommended scheduled charging data is smaller than the modification difference between the second modified target charging data and the recommended scheduled charging data. Therefore, the priority of the next charging of the electric vehicle corresponding to the second modified target charging data is higher than that of the electric vehicle corresponding to the first modified target charging data.

[0099] Specifically, assume that there are five electric vehicles A, B, C, D, and E in the charging sequence, among which A, B, and E have the same pick-up time and the same target charging amount of A and E. The pick-up time of C and D is longer than that of A, B, and E. At this time, A and E need to be charged at the same time to obtain the number of charging piles that can be charged at the same time. If the available power of the charging pile at this time can only charge one vehicle normally, then determine whether the pick-up time is greater than the target charging time. If it is greater, the charging power of the two electric vehicles will be lowered and they will be charged at the same time. If it is less, a message will be sent to the user to remind the user to modify the scheduled charging data. According to the feedback time, it is determined who will be charged first. If the user of A gives feedback first, E will be charged first. If the user of E gives feedback first, A will be charged first. According to the scheduled charging data, the user will be given a certain priority for the next charging.

[0100] By determining the charging power of the electric vehicle to be charged based on the expected pick-up time, expected parking time and target charging amount of the electric vehicle to be charged, adjusting the charging power according to the pick-up time, and adjusting the number of electric vehicles to be charged at the same time according to the available power, and scheduling the charging of the electric vehicles to be charged based on the pick-up time, the charging power and the number of electric vehicles to be charged, the stability of the charging voltage is maintained, the impact of too many charging vehicles on electricity consumption is reduced, and the utilization efficiency of the charging time is improved;

[0101] By using the relationship between the target charging time and the expected parking time, charging scheduling is performed for electric vehicles to be charged, and users of electric vehicles to be charged that cannot complete charging in time are reminded and their charging data is modified, thereby reducing unnecessary troubles caused to users due to failure to charge in time.

[0102] The steps of charging the electric vehicle to be charged through the shared charging pile based on the scheduling result include:

[0103] Obtaining information about shared charging piles, including the number and location of shared charging piles. Each shared charging pile has a unique identifier.

[0104] Divide the parking area into target charging areas based on the locations of shared charging piles, where each target charging area corresponds to at least one shared charging pile.

[0105] Obtaining electric vehicles to be charged in a target charging area, dividing the number of electric vehicles to be charged based on the number of shared charging piles in the target charging area, and matching the electric vehicles to be charged with corresponding shared charging piles based on unique identifiers to obtain target shared charging piles;

[0106] Based on the scheduling result, the electric vehicle to be charged is matched with the target shared charging pile in the corresponding target charging area, and the electric vehicle to be charged is charged based on the target shared charging pile.

[0107] A scheduling system for intelligent charging of new energy electric vehicles, applied to any of the above-mentioned scheduling methods for intelligent charging of new energy electric vehicles, comprises:

[0108] A first data acquisition module is used to obtain an expected pickup time of the electric vehicle to be charged, and determine an expected parking time of the electric vehicle to be charged based on the expected pickup time and the current time;

[0109] Preliminarily sorting the electric vehicles to be charged based on the expected pickup time to obtain a first charging sequence;

[0110] a second data acquisition module, configured to determine an expected parking time of the electric vehicle to be charged based on the expected pickup time and the current time, and filter out electric vehicles to be charged with the same expected parking time based on the first charging sequence to obtain a first set of electric vehicles of the same level;

[0111] Obtaining a target charge capacity of each to-be-charged electric vehicle in a first electric vehicle set of the same level, and sorting the first electric vehicles of the same level in ascending order based on the target charge capacity to obtain a second charging sequence;

[0112] A charging sequence determination module is configured to extract electric vehicles to be charged with the same target charging amount based on the first set of electric vehicles of the same level to obtain a second set of electric vehicles of the same level;

[0113] Obtaining a charging power of the electric vehicle to be charged to obtain a first charging power;

[0114] determining a target charging sequence based on the first charging sequence, the second charging sequence, and the first charging power;

[0115] determining a target charging power based on the target charging time and the expected parking time, wherein the target charging power is the first charging power or the second charging power;

[0116] The charging module is used to schedule the electric vehicles to be charged based on the target charging sequence and the target charging power to obtain a scheduling result; and charge the electric vehicles to be charged based on the scheduling result.

[0117] In actual use, each household has an independent charging pile for charging electric vehicles. During the peak period of electricity consumption in the evening, it is easy to cause voltage instability. The present invention can use shared charging piles to schedule electric vehicles that need to be charged according to the charging time, and maintain the stability of electricity consumption at night without affecting the charging of electric vehicles. Suppose in a certain community, each household originally had an independent charging pile, and there are 100 households in total. If shared charging piles are built, one can be shared by every 5 households, then there will be 20 shared charging piles in this community, and there is no need to build a separate charging pile for each household. In the case of shared charging piles, the construction of charging piles can be reduced by 80%; in the case of 100 households, each resident's charging pile needs to be connected to the main line in the community, while shared charging piles can be connected in a centralized manner, reducing the cost of a large amount of repeated wiring. In addition, shared charging piles can also save the investment in charging pile equipment required by each user.

[0118] The present invention determines the expected parking time of the user's electric vehicle based on the pick-up time of the user's electric vehicle and the current time, determines whether charging parameters need to be adjusted based on the expected parking time and the target charging amount, and determines the relationship between the time required for normal power charging (the time period from the expected time set by the charging sequence to the pick-up time) and the expected parking time. If the time is longer, adjustment is required; if the time is shorter, no adjustment is required. The electric vehicle is charged according to the adjusted power and charging sequence. If the expected parking time is insufficient, several vehicles with the same target charging amount are determined to be able to be charged simultaneously. It is also determined whether the expected parking time is sufficient for simultaneous charging. If sufficient, charging is performed directly. If not, a modification suggestion is sent to the user, and a modification discount and a scheduled time are provided. The closer the charging time selected by the user is to the scheduled time, the greater the discount. Under the same charging time, different charging quantities are corresponding to different charging power levels. Under the same charging power, if the charging time is sufficient, different charging times are corresponding. The power level is determined based on the target charging amount. For example, if the target charging amount is low, two vehicles can be charged simultaneously at low power at the same time. If the target charging amount is high, one vehicle needs to be charged at high power at the same time, thereby maintaining overall voltage stability.

[0119] According to the overall charging power and the power demand of the electric vehicles to be charged, it is determined that several vehicles can be charged together, and the total power remains unchanged. When the power demand of a vehicle is high, the charging power of other vehicles is automatically reduced. When the parking time of the vehicles is similar, the charging power is adjusted to the same level. When the maximum charging power of the target vehicle is met, it is determined whether other electric vehicles can still be charged. If the time to pick up the vehicle is long, the charging power given is low; if the time to pick up the vehicle is short, the power given is high. The charging of each electric vehicle is optimized and scheduled to stagger the charging peak period, reduce the impact of too many charging vehicles on electricity consumption, and improve the utilization efficiency of charging time.

[0120] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0121] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A scheduling method for intelligent charging of new energy electric vehicles, characterized in that: The following steps are involved: S1: Obtaining an expected pickup time for the electric vehicle to be charged, and determining an expected parking time for the electric vehicle to be charged based on the expected pickup time and the current time; Preliminarily sorting the electric vehicles to be charged based on the expected pickup time to obtain a first charging sequence; S2: determining the expected parking time of the electric vehicle to be charged according to the expected pickup time and the current time, and filtering out electric vehicles to be charged with the same expected parking time based on the first charging sequence to obtain a first set of electric vehicles of the same level; Obtaining a target charge capacity of each to-be-charged electric vehicle in a first electric vehicle set of the same level, and sorting the first electric vehicles of the same level in ascending order based on the target charge capacity to obtain a second charging sequence; S3: extracting electric vehicles to be charged with the same target charging amount based on the first set of electric vehicles of the same level to obtain a second set of electric vehicles of the same level; Obtaining a charging power of the electric vehicle to be charged to obtain a first charging power; determining a target charging sequence based on the first charging sequence, the second charging sequence, and the first charging power; determining a target charging power based on the target charging time and the expected parking time, wherein the target charging power is the first charging power or the second charging power; S4: Dispatching the electric vehicles to be charged based on the target charging sequence and the target charging power to obtain a dispatch result; S5: Based on the scheduling results, the electric vehicles to be charged are charged through shared charging piles.

2. The method for scheduling intelligent charging of new energy electric vehicles according to claim 1, characterized in that: The step of determining the target charging power based on the target charging time and the expected parking time, wherein the charging power is the first charging power or the second charging power, includes: determining a target charging time based on the first charging power and the target charging amount; Compare the target charging time with the expected parking time to determine whether the expected parking time is consistent with the target charging time; If it is determined that the expected parking time is consistent with the target charging time, the first charging power is used as the target charging power; If it is determined that the expected parking time is inconsistent with the target charging time, the second charging power is used as the target charging power.

3. The method for scheduling intelligent charging of new energy electric vehicles according to claim 1, characterized in that: The step of determining a target charging sequence based on the first charging sequence, the second charging sequence, and the first charging power includes: Obtaining electric vehicles to be charged within the same expected vehicle pickup time based on the first charging sequence, obtaining target charge amounts corresponding to the electric vehicles to be charged within the same expected vehicle pickup time based on the second charging sequence; determining a second charging power for the electric vehicles to be charged based on the expected parking time and the target charge amount; and counting the number of electric vehicles to be charged within the same expected vehicle pickup time. When the target charging time is equal to the expected parking time, the second charging sequence is directly used as the target charging sequence; When the target charging time is less than the expected parking time, the electric vehicle to be charged within the expected pickup time is taken as the target charging vehicle, and it is determined whether the number of electric vehicles to be charged within the same expected pickup time is greater than 1. If it is less than or equal to 1, the electric vehicle to be charged within the next expected pickup time is taken as the second charging vehicle to obtain the target charging sequence; if it is greater than 1, the other electric vehicles to be charged within the same expected pickup time are taken as the second charging vehicle to obtain the target charging sequence; When the target charging time is greater than the expected parking time, the overall required power within the same expected car pickup time is obtained, and it is determined whether the overall required power exceeds the preset power threshold. A judgment result is obtained, and the target charging sequence is determined based on the judgment result, wherein the judgment result is that the overall required power exceeds the preset power threshold or the overall required power does not exceed the preset power threshold.

4. The method for scheduling intelligent charging of new energy electric vehicles according to claim 3, characterized in that: The step of determining the second charging power of the electric vehicle to be charged based on the expected parking time, the target charging amount and the charging start time includes: obtaining the charging start time of the electric vehicle to be charged; obtaining the target charging amount of the electric vehicle to be charged and the expected vehicle pick-up time; determining the target charging time based on the charging start time and the expected vehicle pick-up time, and determining the target required charging power based on the target charging time and the target charging amount to obtain the second charging power.

5. The method for scheduling intelligent charging of new energy electric vehicles according to claim 3, characterized in that: The step of determining the target charging sequence based on the judgment result includes: If the overall required power does not exceed the preset power threshold, the overall required power is used as the overall charging power. When the judgment result is that the overall required power exceeds the preset power threshold, the maximum power value in the preset power threshold is used as the overall charging power; the overall charging power is divided and rounded based on the second charging power, and the electric vehicles to be charged that meet the rounded charging power are used as target charging vehicles, and the users corresponding to the remaining electric vehicles to be charged that cannot complete the full charging are reminded to modify the expected pick-up time, and the electric vehicles to be charged within the next expected pick-up time are used as the second charging vehicles to obtain the target charging sequence.

6. The method for scheduling intelligent charging of new energy electric vehicles according to claim 5, characterized in that: The step of reminding users corresponding to the remaining electric vehicles to be charged that cannot be fully charged to modify the expected vehicle pickup time includes: counting the number of electric vehicles to be charged within the same expected vehicle pickup time based on the second electric vehicle set of the same level, obtaining a target number of simultaneously charged vehicles, and recording the electric vehicles to be charged corresponding to the target number of simultaneously charged vehicles as target simultaneously charged vehicles; Determine whether the target number of vehicles charging simultaneously exceeds the preset vehicle number threshold; If it is determined that the target number of simultaneously charged vehicles does not exceed the preset vehicle number threshold, the electric vehicles to be charged are charged in sequence according to the target charging sequence; If it is determined that the target number of simultaneously charged vehicles exceeds the preset vehicle number threshold, the number of electric vehicles to be charged that exceeds the threshold is calculated based on the target number of simultaneously charged vehicles and the preset vehicle number threshold to obtain the excess number; a reminder is sent to the user corresponding to the target simultaneously charged vehicle to modify the expected pick-up time and a new expected pick-up time is recommended to the user as the recommended pick-up time; user feedback and user feedback time are obtained, and the user feedback includes user refusal to modify and user successful modification; based on the user feedback time sequence, the electric vehicles to be charged that have been successfully modified by the user are obtained to obtain the target modified vehicle, and the number of target modified vehicles is counted until it is consistent with the excess number; the expected pick-up time updated by the user corresponding to the target modified vehicle is obtained to obtain the target pick-up time; the difference between the target pick-up time and the recommended pick-up time is calculated to obtain the modified time difference; the difference between the target pick-up time and the expected pick-up time is calculated to obtain the actual impact time difference; a priority index is determined based on the modified time difference and the actual impact time difference, the target modified vehicle is prioritized for the next time based on the priority index, and the target modified vehicle is charged according to the priority ranking.

7. The method for scheduling intelligent charging of new energy electric vehicles according to claim 1, characterized in that: The steps of charging the electric vehicle to be charged through the shared charging pile based on the scheduling result include: Obtaining information about shared charging piles, including the number and location of shared charging piles. Each shared charging pile has a unique identifier. Divide the parking area into target charging areas based on the locations of shared charging piles, where each target charging area corresponds to at least one shared charging pile. Obtaining electric vehicles to be charged in a target charging area, dividing the number of electric vehicles to be charged based on the number of shared charging piles in the target charging area, and matching the electric vehicles to be charged with corresponding shared charging piles based on unique identifiers to obtain target shared charging piles; Based on the scheduling result, the electric vehicle to be charged is matched with the target shared charging pile in the corresponding target charging area, and the electric vehicle to be charged is charged based on the target shared charging pile.

8. A scheduling system for intelligent charging of new energy electric vehicles, applied to the scheduling method for intelligent charging of new energy electric vehicles as described in any one of claims 1 to 7, characterized in that: include: A first data acquisition module is used to obtain an expected pickup time of the electric vehicle to be charged, and determine an expected parking time of the electric vehicle to be charged based on the expected pickup time and the current time; Preliminarily sorting the electric vehicles to be charged based on the expected pickup time to obtain a first charging sequence; a second data acquisition module, configured to determine an expected parking time of the electric vehicle to be charged based on the expected pickup time and the current time, and filter out electric vehicles to be charged with the same expected parking time based on the first charging sequence to obtain a first set of electric vehicles of the same level; Obtaining a target charge capacity of each to-be-charged electric vehicle in a first electric vehicle set of the same level, and sorting the first electric vehicles of the same level in ascending order based on the target charge capacity to obtain a second charging sequence; A charging sequence determination module is configured to extract electric vehicles to be charged with the same target charging amount based on the first set of electric vehicles of the same level to obtain a second set of electric vehicles of the same level; Obtaining a charging power of the electric vehicle to be charged to obtain a first charging power; determining a target charging sequence based on the first charging sequence, the second charging sequence, and the first charging power; determining a target charging power based on the target charging time and the expected parking time, wherein the target charging power is the first charging power or the second charging power; A charging module is used to schedule the electric vehicles to be charged based on the target charging sequence and the target charging power to obtain a scheduling result; The electric vehicles to be charged are charged based on the scheduling results.

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