Ordered charging control method and system

Abstract

The invention is suitable for the technical field of charging pile control, and provides an ordered charging control method and system, and the method comprises the steps: setting different charging modes when a charging pile starts charging, and the charging modes comprise an ultrafast charging mode, a fast charging mode and an economic charging mode; the orderly charging control method is applied to an economic charging mode and comprises the following steps: acquiring charging data information of a charging station; based on charging data information of a charging station, dividing a charging time window, and generating an economic user power distribution strategy by using an inverted-order stepped power distribution method; and controlling the charging power of the charging pile in each time period based on the economic user power distribution strategy. According to the invention, the charging demand of an electric vehicle user can be met to the greatest extent, peak load shifting is realized, and orderly charging coordination control of a single power distribution area equipped with a plurality of charging piles is realized.

Description

Technical Field

[0001] The present application belongs to the field of charging pile control technology, and in particular, relates to an orderly charging control method and system. Background Art

[0002] With the maturity of electric vehicle technology and the decline in costs, China's new energy vehicle industry has developed rapidly, and the electrification of automobiles is unstoppable. Against this background, the number of electric vehicles is increasing, and the demand for large-scale charging will pose a serious challenge to the stability of the power grid. First, the disorderly charging behavior of a large number of electric vehicles will lead to a sharp increase in the load on the power grid, resulting in insufficient distribution capacity and local overload, aggravating three-phase imbalance and voltage fluctuations, and increasing the difficulty of dispatching and managing the distribution network; in addition, the charging time of electric vehicles overlaps with the peak of residents' daily electricity consumption, which will further increase the peak load of the power grid, causing the problem of "peak on peak" load on the power grid, affecting the economy and safety of power grid equipment.

[0003] The disorderly charging of electric vehicles has a multi-faceted impact on the distribution network. It not only brings new challenges to the stability of the distribution transformer system and the safe operation of the power grid, but also seriously affects the user's charging experience, causing charging queues, increased charging costs, limited charging time, unstable charging power and other problems.

[0004] At present, the orderly charging control methods of charging stations are divided into centralized control and distributed control. The centralized control method requires orderly charging control of a huge number of electric vehicles, which places high demands on the computing power of the electric vehicle control center of the power grid. At the same time, the real-time communication speed and reliability between electric vehicles and the control center in a large area are also challenged. On the contrary, as a charging place with only a relatively small number of electric vehicles, the charging station can quickly collect electric vehicle charging information in real time, and carry out orderly charging control based on the real-time status of the power grid and the charging needs of customers. The orderly charging control algorithm used in the relevant technology obtains the optimal solution through dynamic optimization of particle swarm algorithm, Monte Carlo, ARMA mathematical model, dual theory distributed algorithm and genetic algorithm. These algorithms are not suitable for distributed control terminals with limited resources and cannot meet the charging needs of electric vehicle users to the maximum extent. Summary of the invention

[0005] In order to overcome the problems existing in the related art, the embodiments of the present application provide an orderly charging control method and system, which can maximize the charging needs of electric vehicle users while achieving peak shaving and valley filling, and realize orderly charging coordination control of a single distribution station area equipped with multiple charging piles.

[0006] This application is implemented through the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides an orderly charging control method, including:

[0008] When the charging pile starts charging, different charging modes are set, including ultra-fast charging mode, fast charging mode and economic charging mode; the orderly charging control method is applied in the economic charging mode, including:

[0009] Obtain charging data information of the charging station;

[0010] Based on the charging data information of the charging station, the charging time window is divided, and the reverse step power allocation method is used to generate an economic user power allocation strategy;

[0011] Based on the economic user power allocation strategy, the charging power of the charging pile in each period is controlled.

[0012] In one embodiment, the charging time window is divided into points, and a reverse step power allocation method is used to generate an economic user power allocation strategy, including:

[0013] Divide the charging time window into a time window sequence according to a preset time period;

[0014] Arrange the time window series from large to small according to the peak and valley charging prices to obtain the price time series;

[0015] According to the charging power constraints of the charging piles, the reverse step power allocation method is used to determine the charging power sequence and charging sequence of each time period corresponding to the price time series, and generate the power allocation strategy for economic users; the charging sequence of each time period represents whether the economic user charges in each time period.

[0016] In one embodiment, the power allocation strategy includes a first-step power allocation strategy, a second-step power allocation strategy, a third-step power allocation strategy, and a fourth-step power allocation strategy;

[0017] The reverse step power allocation method is used to determine the charging power sequence and charging sequence of each time period corresponding to the price time series, and generate the economic user power allocation strategy, including:

[0018] If the current required total charging amount is less than or equal to the maximum power supply during the valley period, the first step power allocation strategy is selected; the first step power allocation strategy is: the charging power during the peak period is the minimum charging power, the charging power during the normal period is the minimum charging power, and the charging power during the valley period is determined based on the charging power during the valley period; the charging power during the valley period is obtained by subtracting the charging power during the peak period and the charging power during the normal period from the total required charging amount;

[0019] If the current required total charging amount is greater than the maximum power supply during the valley period, and is less than or equal to the sum of the maximum power supply during the valley period and the normal period, the second step power allocation strategy is selected; the second step power allocation strategy is: the charging power during the peak period is the minimum charging power, the charging power during the valley period is the maximum charging power, and the charging power during the normal period is determined based on the charging power during the normal period; the charging power during the normal period is obtained by subtracting the charging power during the peak period and the charging power during the valley period from the total required charging amount;

[0020] If the current required total charging amount is greater than the sum of the maximum power supply during the valley period and the normal period, and is less than or equal to the sum of the maximum power supply during the valley period, the normal period, and the peak period, the third-step power allocation strategy is selected; the third-step power allocation strategy is: the charging power during the valley period is the maximum charging power, the charging power during the normal period is the maximum charging power, and the charging power during the peak period is determined based on the charging power during the peak period; the charging power during the peak period is obtained by subtracting the charging power during the normal period and the charging power during the valley period from the total required charging amount;

[0021] If the total amount of charging currently required is greater than the sum of the maximum power supply during valley, normal and peak periods, the fourth-step power allocation strategy is selected; the fourth-step power allocation strategy is: the charging power during valley period is the maximum charging power, the charging power during normal period is the maximum charging power, and the charging power during peak period is the maximum charging power.

[0022] In one embodiment, based on the economic user power allocation strategy, the charging power of the charging pile in each time period is controlled, including:

[0023] Based on the power allocation strategy of economic users, the total economic demand power of all economic users in the next period is obtained;

[0024] Determine the total power reserved for fast charging users and super fast charging users;

[0025] Determine the total allowed power for economic users based on the total economic demand power and the total power reserved for fast charging users and ultra-fast charging users;

[0026] Based on the total allowed power of economic users, the charging power of the charging pile in each period is controlled.

[0027] In one embodiment, determining the total power of reserved fast charging users and super fast charging users includes:

[0028] Get the total power of fast charging users and super fast charging users;

[0029] Obtain the minimum charging power of economic users; the minimum charging power of economic users is used as the transfer power;

[0030] Based on the total power of fast charging users and super fast charging users and the transferred power, the total power reserved for fast charging users and super fast charging users is determined.

[0031] In one embodiment, the total allowed power of economic users includes the total reverse power of each phase and the total allowed power of each phase;

[0032] Based on the total allowable power of economic users, control the charging power of the charging pile in each period, including:

[0033] If the total reverse power per phase is greater than the total permissible power per phase, the reverse power per economic user shall be limited in the same proportion so that the total reverse power per phase is limited to the total permissible power per phase;

[0034] If the total reverse power of each phase is less than or equal to the total allowable power of each phase, the total allowable power of economic users is corrected, and then the charging power of the charging pile in each time period is controlled based on the corrected total allowable power of economic users.

[0035] In one embodiment, correcting the total allowed power of economic users includes:

[0036] Based on the total reverse power of each phase and the total allowable power of each phase, the total corrected power of each phase is determined;

[0037] Based on the total phase-by-phase corrected power and the total phase-by-phase reverse-sequence power, a correction ratio of the total phase-by-phase reverse-sequence power of each economic user is determined;

[0038] Based on the correction ratio of the phase-sequence total reverse power, the phase-sequence total reverse power of economic users with full regulation capability is corrected; economic users with partial regulation capability and economic users without regulation capability are directly corrected according to the minimum power.

[0039] In one embodiment, correcting the total allowed power of economic users further includes:

[0040] For AC economic users, the total corrected power of fast charging and ultra-fast charging is determined based on the peak shaving power and the corrected total allowed power of economic users;

[0041] Based on the fast charging demand power, the ultra-fast charging demand power and the total corrected power of fast charging and ultra-fast charging, the total corrected power of all fast charging users and the total corrected power of all ultra-fast charging users are determined.

[0042] In one embodiment, after controlling the charging power of the charging pile in each time period based on the economic user power allocation strategy, the orderly charging control method further includes:

[0043] Based on the charging power of the charging pile in each period, the unallocated total power is determined.

[0044] In a second aspect, the present application provides an orderly charging control system, including an edge IoT proxy gateway and a charging pile;

[0045] The edge IoT proxy gateway is used to execute the orderly charging control method of the first aspect, generate a control instruction and send it to the charging pile;

[0046] The charging pile responds to the control instructions issued by the edge IoT proxy gateway to adjust the charging power and actively reports the charging data information to the edge IoT proxy gateway.

[0047] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0048] The embodiment of the present application sets an ultrafast charging mode, a fast charging mode and an economic charging mode, and can provide personalized charging services according to the needs and preferences of different users. In the economic charging mode, through a refined power allocation strategy, it is ensured that the basic charging needs of electric vehicle users are met, while reducing the charging costs of users. By using the reverse ladder power allocation method, the charging power can be reasonably allocated in different time periods to avoid excessive concentration of power grid load during peak periods, and while meeting the charging needs of electric vehicle users to the maximum extent, it can achieve peak shaving and valley filling. In a single distribution station equipped with multiple charging piles, this method can achieve coordinated control of orderly charging, which can ensure that the charging power of each charging pile in different time periods is reasonably allocated, avoiding power conflicts between charging piles and imbalance of power grid load.

[0049] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0051] Figure 1 It is a structural schematic diagram of an orderly charging control system provided by an embodiment of the present application;

[0052] Figure 2 It is a flowchart of an orderly charging control method provided by an embodiment of the present application;

[0053] Figure 3 It is a schematic diagram of constant power charging of an electric vehicle provided by an embodiment of the present application;

[0054] Figure 4 is a schematic diagram of charging power in each time period provided by an embodiment of the present application;

[0055] Figure 5It is a schematic diagram of the structure of a controller provided in one embodiment of the present application. DETAILED DESCRIPTION

[0056] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0057] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0058] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0059] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0060] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0061] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0062] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] Figure 1 is a schematic diagram of the structure of an orderly charging control system provided by an embodiment of the present application, referring to Figure 1 , the present application provides an orderly charging control system, including an edge IoT proxy gateway 101 and a charging pile 102.

[0064] The edge IoT proxy gateway 101 is used to execute the orderly charging control method and generate control instructions to send to the charging pile 102.

[0065] The charging pile 102 adjusts the charging power in response to the control instruction issued by the edge IoT proxy gateway 101, and actively reports the charging data information to the edge IoT proxy gateway 101.

[0066] The orderly charging control system first executes the control method and issues control instructions through the edge IoT proxy gateway 101, which can realize the centralized management and coordination of multiple charging piles 102. For example, in a large parking lot, many electric vehicles charging at the same time may bring huge pressure to the power grid, and the system can reasonably allocate the charging power of each charging pile 102 according to the real-time load of the power grid to avoid overload.

[0067] Secondly, the charging pile 102 actively reports charging data information, which also provides a basis for system optimization. These data may include charging time, charging amount, remaining battery capacity, etc. The edge IoT proxy gateway 101 can further analyze the user's charging habits based on these data. For example, if most users are used to charging in a certain time period after get off work, the system can plan the power distribution in advance.

[0068] Furthermore, this system helps to improve the stability and reliability of the power grid. When the power grid fluctuates or fails, the edge IoT proxy gateway 101 can adjust the charging power of the charging pile 102 in time, or even suspend the charging operation of some charging piles 102 to ensure the safe operation of the power grid. At the same time, this is also conducive to extending the service life of the charging pile 102 and the electric vehicle battery, because reasonable charging power control can reduce the overcharging and over-discharging of the battery.

[0069] With the increasing number of electric vehicles, the application prospects of this orderly charging control system are very broad. It can be further integrated with the smart grid to achieve more intelligent and refined energy management. For example, combined with weather forecast information, if it is predicted that extreme weather will lead to tight power supply, the system can notify users in advance to adjust their charging plans, or automatically adjust the charging power of the charging pile to cope with possible power shortages.

[0070] Figure 2 is a flow chart of an orderly charging control method provided by an embodiment of the present application, referring to Figure 2 , the orderly charging control method is described in detail as follows:

[0071] When the charging pile starts charging, different charging modes are set, including ultra-fast charging mode, fast charging mode and economic charging mode.

[0072] The three modes are differentiated by service fees. The electricity charges in each rate period are not adjusted, only the service fees are adjusted. The proportion of service fee increase and decrease is different in different modes. The three modes regulate the output power of the charging pile in order of priority. The priority description is shown in Table 1.

[0073] Ultra-fast charging mode (VIP charging mode): When the load of ultra-fast charging users (VIP users) in ultra-fast charging mode is not regulated, the service fee for the current rate period will be increased according to the set ratio on the basis of the basic service fee; when the load of such VIP users is regulated, the service fee for the current rate period will be the basic service fee.

[0074] Fast charging mode: When the fast charging user load in the fast charging mode is not regulated, the service fee for the current rate period is the basic service fee; when the fast charging user load is regulated, the service fee for the current rate period is reduced by a set ratio on the basis of the basic service fee.

[0075] Economic charging mode: When the load of economic users in the economic charging mode is not regulated, the service fee for the current rate period is reduced by a set ratio on the basis of the basic service fee; when the load of such economic users is regulated, the service fee for the current rate period is reduced by a set ratio on the basis of the basic service fee.

[0076] Table 1 Description of the priority order of the three modes

[0077]

[0078]

[0079] The orderly charging control method of this embodiment only performs reverse step power allocation for the economic charging mode, and the implementation methods of other modes are irrelevant to the present solution. The orderly charging control method is applied to the economic charging mode, including:

[0080] Step 201, obtaining charging data information of a charging station.

[0081] Exemplarily, the edge IoT proxy gateway 101 collects charging data information of the charging station in real time. The charging data information specifically includes the charging start time, the user's expected end time, the electricity rate, the service fee rate, the vehicle's current required power, the maximum output power of the charging pile, the minimum output power of the charging pile, the battery capacity, the initial state of charge, the current state of charge, the pile type (AC pile or DC pile), the charging pile installation phases (A, B and C phases), the charging mode (ultra-fast charging mode, fast charging mode and economic charging mode) and the service fee adjustment ratio, etc.

[0082] Step 202: based on the charging data information of the charging station, the charging time window is divided, and the economic user power allocation strategy is generated by using the reverse ladder power allocation method.

[0083] The charging cost is equal to the service fee plus the charging unit price, such as Figure 3 The schematic diagram of constant power charging of electric vehicles is shown in the figure. The economic charging mode reasonably allocates the charging power in each period to achieve peak load shifting and valley filling and the most economical charging cost. Low-power charging is used in high charging electricity price periods, and high-power charging is used in low charging electricity price periods, thereby achieving the purpose of economic charging.

[0084] The charging data information of the economic mode charging requirement includes the charging start time t s , expected pick-up time t f , Current battery state of charge SOC s , end the desired battery state of charge SOC f and charging time window t c The charging start time is set by default to the charging start time, and no user input is required. Before the charging pile is started, the user enters the expected pick-up time on the mobile phone APP or the charging pile LCD display. The current battery charge status, such as the current battery remaining power percentage SOC s Can be obtained from the vehicle end; end the expected battery state of charge, the expected battery remaining percentage defaults to 100%, no user input is required, and charging is started according to the power; t c =t f -t s , each time unit is seconds.

[0085] Based on the charging data information of the charging station, the charging time window is divided into points. According to the divided time series, the power information of each period in the peak and valley is counted, and the reverse ladder power allocation method is used to reversely calculate whether the charging task can be completed in the remaining time after the next cycle Δt according to the charging capacity constraint condition. If it can be completed, the minimum power is output in the next cycle. If it cannot be completed, the output power of the next cycle is increased, and the charging sequence for completing the charging task is obtained. The charging power constraint conditions include the charging power constraint conditions of the DC charging pile and the charging power constraint conditions of the AC charging pile. The setting rules of the power of the economic charging mode are shown in Table 2.

[0086] Table 2 Setting rules for economic charging mode power

[0087]

[0088] The first group of power setting rules in Table 2 above sets the minimum power during peak, flat and normal periods, which can ensure full charge under the most economical conditions. The fifth group of power setting rules sets the maximum power during peak, flat and valley periods, which can ensure full charge at the fastest speed within the expected time. The limit power needs to be calculated, and the limit power is greater than or equal to the minimum power and less than or equal to the maximum power.

[0089] Step 203: Based on the economic user power allocation strategy, the charging power of the charging pile in each time period is controlled.

[0090] This embodiment can provide personalized charging services according to the needs and preferences of different users by setting ultra-fast charging mode, fast charging mode and economic charging mode. In the economic charging mode, through the refined power allocation strategy, it is ensured that the basic charging needs of electric vehicle users are met, while reducing the charging costs of users. By using the reverse ladder power allocation method, the charging power can be reasonably allocated in different time periods to avoid excessive concentration of power grid load during peak periods, and while meeting the charging needs of electric vehicle users to the maximum extent, it can achieve peak shaving and valley filling. In a single distribution station equipped with multiple charging piles, this method can achieve coordinated control of orderly charging, which can ensure that the charging power of each charging pile in different time periods is reasonably allocated, avoiding power conflicts between charging piles and imbalance of power grid load.

[0091] In one embodiment, in step 202, the charging time window is divided, and a reverse step power allocation method is used to generate an economic user power allocation strategy, including:

[0092] Step 2021: divide the charging time window into a time window sequence according to a preset time period.

[0093] For example, the charging time window t cThe time interval is divided into 15-minute intervals T = {t1, ..., t n}.

[0094] The charging power constraint of the DC charging pile is: P min ≤P t ≤P max , step size is the minimum unit of change allowed for the DC pile. t is the charging power of the DC charging pile, P min is the minimum charging power of the DC charging pile, P max It is the maximum charging power of the DC charging pile.

[0095] The charging power constraint of the AC charging pile is: P t = {P 1挡 , P 2挡 ,…,P n挡}, P t is the charging power of the DC charging pile, which represents the output power vector of the four periods of peak, flat and valley. The charging power of the DC charging pile cannot be adjusted, only the gear, which is also arranged according to the power size, such as P 1挡 The power is the smallest, P n挡 The power is the largest.

[0096] The time constraint of the charging time window is: t c ≤24 hours. The user can set a limit when inputting via the APP. The charging time will not exceed 24 hours.

[0097] Step 2022, arrange the time window sequence from large to small according to the peak and valley charging prices to obtain a price time series.

[0098] Arrange the sequence T from high to low according to the peak and valley charging prices, and the price time series T′={t1′,…,t n ′}, and statistics are collected for each period of time at the peak, flat and valley. Each time value in the price time series can actually represent a price and the corresponding time information.

[0099] Step 2023, according to the charging capacity constraint of the charging pile, the reverse ladder power allocation method is used to determine the charging power sequence of each time period and the charging sequence of each time period corresponding to the price time series, and generate a power allocation strategy for economic users; the charging sequence of each time period represents whether the economic user charges in each time period.

[0100] For a DC charging pile, the SOC, the total battery power W, and the remaining charging time to fully charge (the remaining time to fully charge according to the current set power) can be obtained from the vehicle.

[0101] The charging capacity constraint is expressed as:

[0102]

[0103] Among them, C t is the charging sequence for each period, which can be expressed as C t ={c1, c2, ..., c t , …, c N}. t is the charging power sequence for each period, which can be expressed as P t ={p1, p2, ..., p t ,…,p N N is the number of time intervals of the remaining time for full charge according to the current set power. For example, if the remaining time for full charge is 24 hours, and the time interval is calculated according to Δt=15 minutes, there are 96 time intervals in total, N=96. The charging sequence is time-continuous, that is, it is uninterrupted charging within a period of time, for example, c1 to c t All are 0 not charged, c t to c N Both are 1 to maintain continuous charging.

[0104] For example, in the economic charging mode, the user can select different charging modes, such as automatic full charging and time mode, power mode and amount mode. No matter which charging mode is selected, the final adjustment uses power adjustment. Different charging modes have different representation forms of charging capacity constraints.

[0105] Automatic filling and time mode:

[0106] By power mode: User expected battery charge level

[0107] By amount mode: the amount the user expects to charge M t is the charging price sequence for each period, which can be expressed as M t ={m1, m2, ..., m t ,…,m N}

[0108] In the case where the AC charging pile cannot obtain SOC and battery power information from the vehicle, the electricity price period arrangement is the same as the high and low power arrangement, and the charging power sequence of each period is directly obtained. For example, in the four rate periods, the peak, flat, and valley correspond to the P of the AC pile gear period respectively. 1挡 , P 2挡 , P 3挡 , P 4挡 If there are not enough gears, for example, there are 4 rate bands but only 2 gears, then the peak corresponds to one gear and the valley corresponds to one gear.

[0109] By utilizing the charging capacity constraint, the charging sequence and charging power sequence of each time period are reversely calculated, thus forming an economic user power allocation strategy based on the charging sequence and charging power sequence of each time period.

[0110] Exemplarily, the power allocation strategy includes a first-step power allocation strategy, a second-step power allocation strategy, a third-step power allocation strategy, and a fourth-step power allocation strategy.

[0111] First, we introduce the symbols and their relationship of charging capacity, charging power and charging time in each period. 谷 , charging power P during valley period 谷 , charging time during valley period t 谷 ; Normal period charging power W 平 , normal period charging power P 平 , charging time during normal period t 平 ; Peak charging power W 峰 , peak charging power P 峰 , charging time during peak hours t 峰 .

[0112] The total charging power W required to charge to the target value set by the user 总 , W 总 =W 谷 +W 平 +W 峰 The current real-time maximum power demand is P max , the current minimum required power is P min .

[0113] The reverse step power allocation method is used to determine the charging power sequence and charging sequence of each time period corresponding to the price time series, and generate the economic user power allocation strategy, including:

[0114] If the total amount of charging currently required is less than or equal to the maximum power supply during the valley period, that is, W 总 ≤P max t 谷 , then the first-tier power allocation strategy is selected, indicating that the required charging power can be met in one valley period. Considering that the peak period and the normal period are before the valley period, the charging pile cannot stop charging during the peak period and the normal period. The first-tier power allocation strategy is: the charging power of the peak period is the minimum charging power, the charging power of the normal period is the minimum charging power, and the charging power of the valley period is determined based on the charging power of the valley period; the charging power of the valley period is obtained by subtracting the charging power of the peak period and the charging power of the normal period from the total required charging amount.

[0115] Then, under the first-step power allocation strategy, the charging power sequence and charging sequence of each time period are determined.峰 =P min , charging power during peak hours W 峰 =P 峰 t 峰 , the charging power P during normal period 平 =P min , the charging capacity during normal period is W 平 =P 平 t 平 At this time, the charging power W during the valley period can be determined 谷 =W 总 -W 峰 -W 平 , thus determining the charging power P during the valley period 谷 =W 谷 / t 谷 .

[0116] If the total amount of charging required at present is greater than the maximum power supply during the valley period, and less than or equal to the sum of the maximum power supply during the valley period and the normal period, that is, P max t 谷 <W 总 ≤P max (t 谷 +t 平 ), then the second-tier power allocation strategy is selected, indicating that the required charging power can be met by the two periods of valley and normal time. Considering that the peak period is before the normal and valley periods, the charging pile cannot stop charging during the peak period. The second-tier power allocation strategy is: the charging power of the peak period is the minimum charging power, the charging power of the valley period is the maximum charging power, and the charging power of the normal period is determined based on the charging power of the normal period; the charging power of the normal period is obtained by subtracting the charging power of the peak period and the charging power of the valley period from the total required charging amount.

[0117] Then, under the second-step power allocation strategy, the charging power sequence and charging sequence of each time period are determined. 峰 =P min , charging power during peak hours W 峰 =P 峰 t 峰 , the charging power P during the valley period 谷 =P max , the charging power during the valley period W 谷 =P 谷 t 谷 At this time, the charging power W in normal time can be determined 平 =W 总 -W 峰 -W 谷 , thus determining the charging power P during normal periods 平 =W 平 / t平 ,like Figure 4 As shown, the charging power output during normal periods is limited power output.

[0118] If the total amount of charging required at present is greater than the sum of the maximum power supply during the valley period and the normal period, and is less than or equal to the sum of the maximum power supply during the valley period, the normal period and the peak period, that is, P max (t 谷 +t 平 )<W 总 ≤P max (t 谷 +t 平 +t 峰 ), then the third-tier power allocation strategy is selected, indicating that the three periods of valley, normal and peak cannot meet the required charging power. The third-tier power allocation strategy is: the charging power of the valley period is the maximum charging power, the charging power of the normal period is the maximum charging power, and the charging power of the peak period is determined based on the charging power of the peak period; the charging power of the peak period is obtained by subtracting the charging power of the normal period and the charging power of the valley period from the total required charging amount.

[0119] Then, under the third-step power allocation strategy, the charging power sequence and charging sequence of each time period are determined. 谷 =P max , the charging power during the valley period W 谷 =P 谷 t 谷 , the charging power P during normal period 平 =P max , the charging capacity during normal period is W 平 =P 平 t 平 At this time, the charging power W during the peak period can be determined 峰 =W 总 -W 平 -W 谷 , thereby determining the charging power P during the peak period 峰 =W 峰 / t 峰 , the charging power output during peak hours is limited power output.

[0120] If the total amount of charging required at present is greater than the sum of the maximum power supply during the valley period, normal period and peak period, that is, W 总 >P max (t 谷 +t 平 +t 峰), then select the fourth-tier power allocation strategy. The three time periods can only output the maximum power required by the current pile, and it is not guaranteed that the user can charge to the expected SOC. The fourth-tier power allocation strategy is: the charging power in the valley period is the maximum charging power, the charging power in the normal period is the maximum charging power, and the charging power in the peak period is the maximum charging power.

[0121] Then, under the fourth-step power allocation strategy, the charging power sequence and charging sequence of each time period are determined. 谷 =P max , P 平 =P max , P 峰 =P max .

[0122] In this embodiment, according to the charging capacity constraint condition, the reverse step power allocation method is used to calculate the economic demand power of each economic user in the next cycle, and whether to charge in each time period, so that charging can be arranged according to four power allocation strategies, ensuring that the basic charging needs of electric vehicle users are met, reducing the charging costs of users, avoiding excessive concentration of grid load during peak periods, and achieving peak shaving and valley filling while maximally meeting the charging needs of electric vehicle users. In a single distribution station area equipped with multiple charging piles, this method can achieve coordinated control of orderly charging.

[0123] In one embodiment, after the economic demand power of each economic user in the next cycle is calculated using the reverse step power allocation method in the above embodiment, the total economic demand power of all economic users in the next cycle can be determined based on the economic user power allocation strategy, and the charging power of the charging pile in each time period can be controlled according to the total economic demand power of the economic users in the next cycle to achieve orderly charging.

[0124] Step 203 includes:

[0125] Step 2031: Based on the economic user power allocation strategy, the total economic demand power of all economic users in the next cycle is obtained.

[0126] After determining the charging power of a single user in the economic charging mode by using the reverse ladder power allocation method, the total economic demand power of all users in the economic charging mode is determined. The total economic demand power of all users in the economic charging mode includes the total economic demand power of the three phases A, B and C, which can be expressed as ∑P A经济倒序 ,∑P B经济倒序 and ∑P C经济倒序 .

[0127] Step 2032, determine the total power reserved for fast charging users and super fast charging users.

[0128] If the power is directly allocated to economic users according to the reverse order of the ladder power, the power of fast charging users in the fast charging mode and VIP users in the ultra-fast charging mode may be limited first, which conflicts with the priority order setting of the three modes and causes priority inversion. Therefore, in order to give priority to the power allocation of VIP users and fast charging users, it is necessary to reserve the total power of fast charging users and VIP users first. The total power of the three-phase fast charging users and VIP users of A, B and C can be expressed as P A快充和VIP总 , P B快充和VIP总 and P C快充和VIP总 .

[0129] Among them, the total power calculation formula for fast charging users and VIP users is expressed as:

[0130] P A快充和VIP总 =(∑P A快充需求 +∑P AVIP需求 )

[0131] P B快充和VIP总 =(∑P B快充需求 +∑P BVIP需求 )

[0132] P C快充和VIP总 =(∑P C快充需求 +∑P CVIP需求 )

[0133] Among them, P A快充需求 , P B快充需求 and P C快充需求 They are the power requirements of the three-phase fast charging users A, B and C, ∑P A快充需求 ,∑P B快充需求 and ∑P C快充需求 are the total power required by the three-phase fast charging users of A, B and C, respectively, VIP需求 , P BVIP需求 and P CVIP需求 are the power requirements of the three-phase VIP users A, B and C, ∑P AVIP需求 ,∑P BVIP需求 and ∑P CVIP需求 They are the total power required by three-phase VIP users A, B and C respectively.

[0134] Step 2033: Determine the total allowed power for economic users based on the total economic demand power and the total power reserved for fast charging users and ultra-fast charging users.

[0135] The total permissible power P of the three phases A, B and C A变压器 , P B变压器 , P C变压器 Subtract the total power of all fast charging users and VIP users in the corresponding phase from the total power, and the remaining power is the total allowable power for all economic users. The total allowable power of all economic users in three phases is expressed as ∑P a经济允许,∑P B经济允许 and ∑P C经济允许 .

[0136] In the economic charging mode, the calculation formula for the total three-phase allowable power of economic users is expressed as:

[0137]

[0138]

[0139] Among them, P A经济min , P B经济min and P C经济min are the minimum three-phase permissible power of economic users A, B and C respectively; ∑P A经济min ,∑P B经济min ,∑P C经济min They are the sum of the minimum three-phase power requirements of economic users A, B and C respectively.

[0140] Step 2034, based on the total allowed power of economic users, control the charging power of the charging pile in each time period.

[0141] In order to give priority to the power allocation of VIP users and fast charging users, this embodiment reserves the total power of fast charging users and VIP users. After reserving this part of power, the power of the remaining economic users is allocated in reverse order of ladder power. In this way, it can be ensured that there will be no violation of the priority order during the power allocation process, thereby ensuring the rationality and orderliness of the power allocation of the entire charging system.

[0142] In one embodiment, if the output power of the charging pile is 0, charging will stop and the user needs to manually start charging. In order to avoid manual charging, the charging pile is guaranteed to work at least at the minimum power to ensure that charging will not stop. Therefore, it is necessary to give up some power from the total power demand of fast charging users and VIP users to meet the minimum power charging of economic users. Then, it is necessary to redefine the total power reserved for fast charging users and super fast charging users. Step 2032 includes:

[0143] First, obtain the total power of fast charging users and super fast charging users.

[0144] Secondly, the minimum charging power of the economic user is obtained, wherein the minimum charging power of the economic user is used as the transfer power.

[0145] Finally, based on the total power of fast charging users and super fast charging users and the transferred power, the total power reserved for fast charging users and super fast charging users is determined.

[0146] The total power reserved for fast charging users and super fast charging users can be expressed as:

[0147]

[0148] In this embodiment, the total power of fast charging users and super fast charging users is obtained by subtracting the minimum charging power of economy users, and the result is the reserved total power of fast charging users and super fast charging users. This can ensure the charging needs of fast charging users and VIP users as much as possible while satisfying the charging needs of economy users at the minimum power, and reduce the occurrence of charging stops due to the output power of the charging pile being 0, thereby improving the overall charging efficiency and user experience, and achieving a relatively balanced state in resource allocation, which not only takes into account the differences in needs of different types of users, but also ensures the stable operation of the charging system.

[0149] In one embodiment, the total allowed power of economic users includes the total reverse power per phase and the total allowed power per phase.

[0150] Step 2034 includes:

[0151] If the total reverse power per phase is greater than the total permissible power per phase, the reverse power of each economic user shall be limited in the same proportion so that the total reverse power per phase is limited to the total permissible power per phase.

[0152] For example, if the total reverse power per phase is greater than the total permissible power per phase, it means that the power available for the phase is insufficient and the total reverse power per phase needs to be limited. Since all users are economic users, the reverse power per phase can be limited in the same proportion according to the principle of fairness, so that the total reverse power per phase is limited to the total permissible power per phase.

[0153] If the total reverse power of each phase is less than or equal to the total allowable power of each phase, the total allowable power of economic users is corrected, and then the charging power of the charging pile in each time period is controlled based on the corrected total allowable power of economic users.

[0154] For example, if the total reverse power of each phase is less than or equal to the total allowed power of each phase, it means that there is no need to limit the total reverse power of each phase (the economic demand power of each economic user in the next cycle is calculated using the reverse step power allocation method, and charging at this power is the most economical). At this time, it is necessary to give up the remaining power from the total allowed power of each phase to fast charging users and VIP users, but fast charging users and VIP users are already outputting according to the current demand power (100% output), and will not be able to increase the power, so some power will not be allocated.

[0155] Then, in order to solve the problem of some power not being allocated, the total permitted power of economic users is revised, including:

[0156] The total phase-by-phase corrected power is determined based on the total phase-by-phase reverse power and the total phase-by-phase allowable power.

[0157] The total phase-by-phase corrected power can be expressed as:

[0158] ∑P A经济修正 =min{∑P A经济倒序 ,∑P A经济允许}

[0159] ∑P B经济修正 =min{∑P B经济倒序 ,∑P B经济允许}

[0160] ∑P C经济修正 =min{∑P C经济倒序 ,ΣP C经济允许}

[0161] Based on the total phase-corrected power and the total phase-reverse-sequence power, the correction ratio of the total phase-reverse-sequence power of each economic user is determined.

[0162] For each economic user, the correction ratio of the total reverse-sequence power of each phase can be expressed as:

[0163]

[0164] Based on the correction ratio of the phase-sequence total reverse power, the phase-sequence total reverse power of economic users with full regulation capability is corrected; economic users with partial regulation capability and economic users without regulation capability are directly corrected according to the minimum power.

[0165] Since the power level obtained by each economic user according to the reverse step power allocation method is not consistent (it may be the minimum power, maximum power, limited power, or one of the three. For example, when the power level obtained according to the reverse step power allocation method is already the minimum power, it can only be allocated according to the minimum power), there will be a situation where it is impossible to allocate according to K A经济修正 , K B经济修正 , K C经济修正 Issue with correcting reverse power.

[0166] In order to solve the problem that the reverse power cannot be A经济修正 , K B经济修正 , K C经济修正 To correct the problem, assume that the number of economic users with full regulation capability (reverse sequence power is the maximum power) is i, the number of economic users with partial regulation capability (reverse sequence power is the limited power) is j, and the number of economic users without regulation capability (reverse sequence power is the minimum power) is k. Regardless of the difference between single-phase piles and three-phase piles, three-phase charging piles can be treated as three single-phase piles.

[0167] Users with full adjustment capabilities can follow K A经济修正 , K B经济修正 , K C经济修正Correct the reverse power. For users with partial regulation capability and users without regulation capability, correct according to the minimum power.

[0168] Input information: (K A经济修正 , K B经济修正 , K C经济修正 ) and (∑P A经济倒序 ,∑P B经济倒序 ,∑P C经济倒序 )

[0169] Output information: (∑P′ A经济修正 ,∑P′ B经济修正 ,∑P′ C经济修正 )

[0170] The corrected power of each economic user: The corrected power of each economic user with full regulation capability is expressed as {P iA经济修正 , P iB经济修正 , P iC经济修正}, the corrected power of each economic user with partial regulation capability is expressed as {P jB经济修正 , P jB经济修正 , P jC经济修正 The corrected power of each economic user without regulation capability is expressed as {P kA经济修正 , P kB经济修正 , P kC经济修正}.

[0171] Each economic user with full regulation capacity, according to ∑P iA经济倒序 K A经济修正 ,∑P iB经济倒序 K B经济修正 ,∑P iC经济倒序 K C经济修正 Perform power distribution.

[0172] Users with partial regulation capabilities are allocated according to the minimum power, and their power sum is ∑P jA经济min ,∑P jB经济min ,∑P jC经济min .

[0173] Users without regulation capability are allocated according to the minimum power, and their power sum is ∑P kA经济min ,∑P kB经济min ,∑P kC经济min .

[0174] Recalculate the power and ∑P′ of all economic users based on the above input information A经济修正 ,∑P′ B经济修正 ,∑P′ C经济修正 ,∑P′ A经济修正 ,∑P′ B经济修正 ,∑P′ C经济修正 The calculation formulas are expressed as:

[0175] ∑P′ A经济修正 =∑P iA经济倒序 K A经济修正 +∑P jA经济min +∑P kA经济min

[0176] ∑P′ B经济修正 =∑P iB经济倒序 K B经济修正 +∑P jB经济min +∑P kB经济min

[0177] ∑P′ C经济修正 =∑P iC经济倒序 K C经济修正 +∑P jC经济min +∑P kC经济min

[0178] Specifically for each economic user, the power distribution is as follows:

[0179] P iA经济修正 =P iA经济倒序 K A经济修正

[0180] P iB经济修正 =P iB经济倒序 K C经济修正

[0181] P iC经济修正 =P iC经济倒序 K C经济修正

[0182] P jA经济修正 =P jA经济min

[0183] P jB经济修正 =P jB经济min

[0184] P jC经济修正 =P jC经济min

[0185] P kA经济修正 =P kA经济min

[0186] P kB经济修正 =P kB经济min

[0187] P kC经济修正 =P kC经济min

[0188] This embodiment adopts different correction methods for users with different adjustment capabilities, which can solve the problem that the reverse power cannot be adjusted according to K A经济修正 , K B经济修正 , K C经济修正In actual operation, it is necessary to accurately count the number of different types of users i, j, k to ensure the accuracy of the correction. At the same time, it is also necessary to consider that the values ​​of i, j, k may change over time and as user habits change. Therefore, a dynamic monitoring mechanism can be established to adjust the correction strategy in a timely manner.

[0189] In one embodiment, due to the existence of AC economic users, the power correction cannot be adjusted smoothly, which will cause a deviation between the power and the theoretical value, so it is necessary to recalculate the total corrected power of fast charging and VIP. Correcting the total allowed power of economic users also includes:

[0190] For AC economy users, the total corrected power of fast charging and ultra-fast charging is determined based on the peak shaving power and the corrected total allowed power of economy users.

[0191] Exemplarily, the total corrected power of fast charging and ultra-fast charging can be expressed as:

[0192] P A快充和VIP总修 =P A削峰 -∑P′ A经济修正

[0193] P B快充和VIP总修 =P B削峰 -∑P′ B经济修正

[0194] P C快充和VIP总修 =P C削峰 -∑P′ C经济修正

[0195] Based on the fast charging demand power, the ultra-fast charging demand power and the total corrected power of fast charging and ultra-fast charging, the total corrected power of all fast charging users and the total corrected power of all ultra-fast charging users are determined.

[0196] Prioritize the needs of VIP users, and then ensure the fast charging needs. If the needs can be met, then work according to the required power. If the needs cannot be met, all charging piles of the same type will reduce power in the same proportion. At the same time, by setting the threshold, the minimum power is met to ensure that charging will not be stopped.

[0197] The threshold value of VIP user demand power after correction is expressed as:

[0198] P AVIP修正阈值 =∑P AVIP需求 +∑P A快充min

[0199] P BVIP修正阈值 =∑P BVIP需求 +∑P B快充min

[0200] P CVIP修正阈值 =∑P CVIP需求 +∑PC快充min

[0201] The corrected total power demand of VIP users is expressed as:

[0202]

[0203]

[0204] The smallest of the corrected total power required by VIP users and the total power required by VIP users is selected as the total corrected power of the super-fast charging user. The total corrected power of the super-fast charging user is expressed as:

[0205] ∑P′ AVIP修正 =min{∑P AVIP Demand, ∑P AVIP修正}

[0206] ∑P′ BVIP修正 =min{∑P BVIP Demand, ∑P BVIP修正}

[0207] ∑P′ CVIP修正 =min{∑P CVIP Demand, ∑P CVIP修正}

[0208] Similarly, the corrected total power allowed by fast charging users is expressed as:

[0209] ∑P A快充修正 =P A快充和VIP总修 -∑P AVIP修正

[0210] ∑P B快充修正 =P B快充和VIP总修 -∑P BVIP修正

[0211] ∑P C快充修正 =P C快充和VIP总修 -∑P CVIP修正

[0212] The smallest of the corrected total power allowed by fast charging users and the total power required by fast charging users is selected as the total corrected power of fast charging users. The total corrected power of fast charging users is expressed as:

[0213] ∑P′ A快充修正 =min{∑P A快充需求 ,∑P A快充修正}

[0214] ∑P′ B快充修正 =min{∑P B快充需求 ,∑P B快充修正}

[0215] ∑P′C快充修正 =min{∑P C快充需求 ,∑P C快充修正}

[0216] This embodiment gives priority to ensuring the needs of VIP users in the ultra-fast charging mode, and then ensures the fast charging needs in the fast charging mode. If the needs can be met, it will work according to the required power. If the needs cannot be met, in the process of reducing the power in the same proportion for all charging piles of the same type, the fast charging power lower limit for fast charging users and the ultra-fast charging lower limit for VIP users are set, thereby ensuring that all charging piles will not stop charging.

[0217] In one embodiment, after controlling the charging power of the charging pile in each time period based on the economic user power allocation strategy, the orderly charging control method further includes:

[0218] Based on the charging power of the charging pile in each period, the unallocated total power is determined.

[0219] The unallocated total power is calculated as follows:

[0220] P A经济未分配 =P A变压器 -∑P′ A经济修正 -∑P′ A快充修正 -∑P′ AVIP修正

[0221] P B经济未分配 =P B变压器 -∑P′ B经济修正 -∑P′ B快充修正 -∑P′ BVIP修正

[0222] P C经济未分配 =P C变压器 -∑P′ C经济修正 -∑P′ C快充修正 -∑P′ CVIP修正

[0223] For example, determining the unallocated total power will provide an important basis for further optimizing the charging strategy. For example, the unallocated total power can be used as reserved charging power and allocated to new electric vehicles.

[0224] The unallocated total power in this embodiment can reflect how much power can be flexibly allocated in the system under the current power allocation strategy. By accurately calculating the unallocated total power, the charging needs of different users and the carrying capacity of the power grid can be better balanced. For example, if the unallocated total power is high, this may mean that the power of the charging pile is not fully utilized during certain periods of time. At this time, you can consider adjusting the allocation strategy appropriately to encourage more users to charge during these periods; on the contrary, if the unallocated total power is low or even close to zero, you need to be cautious about new charging requests to prevent overloading the power grid.

[0225] The orderly charging control method of the embodiment of the present application can provide personalized charging services according to the needs and preferences of different users by setting an ultra-fast charging mode, a fast charging mode and an economic charging mode. In the economic charging mode, a refined power allocation strategy is used to ensure that the basic charging needs of electric vehicle users are met, while reducing the charging costs of users. By using the reverse step power allocation method, the charging power can be reasonably allocated in different time periods to avoid excessive concentration of power grid load during peak periods, and while meeting the charging needs of electric vehicle users to the maximum extent, peak shaving and valley filling can be achieved. In a single distribution station equipped with multiple charging piles, this method can achieve coordinated control of orderly charging, ensure that the charging power of each charging pile in different time periods is reasonably allocated, and avoid power conflicts between charging piles and imbalance of power grid load.

[0226] The present application also provides a controller, see Figure 5 The controller 300 may include: at least one processor 310 and a memory 320, wherein the memory 320 stores a computer program that can be run on at least one processor 310, and when the processor 310 executes the computer program, the steps in any of the above method embodiments are implemented.

[0227] Exemplarily, the computer program may be divided into one or more modules / units, one or more modules / units are stored in the memory 320, and executed by the processor 310 to complete the present application. One or more modules / units may be a series of computer program segments capable of completing specific functions, and the program segments are used to describe the execution process of the computer program in the controller 300.

[0228] Those skilled in the art will understand that Figure 5 These are merely examples of controllers and do not constitute a limitation of the controller, which may include more or fewer components than those shown in the figure, or a combination of certain components, or different components, such as input and output devices, network access devices, buses, etc.

[0229] The processor 310 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0230] The memory 320 may be an internal storage unit of the controller or an external storage device of the controller, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. The memory 320 is used to store computer programs and other programs and data required by the server and the processor. The memory 320 may also be used to temporarily store data that has been output or is to be output.

[0231] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0232] The orderly charging control method provided in the embodiment of the present application can be applied to controllers such as computers, tablet computers, laptop computers, netbooks, personal digital assistants (PDAs), etc. The embodiment of the present application does not impose any restrictions on the specific type of controller.

[0233] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0234] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An orderly charging control method, characterized in that: When the charging pile starts charging, different charging modes are set, and the charging modes include ultra-fast charging mode, fast charging mode and economic charging mode; The orderly charging control method is applied in the economic charging mode, and includes: Obtain charging data information of the charging station; Based on the charging data information of the charging station, the charging time window is divided, and the economic user power allocation strategy is generated by using the reverse ladder power allocation method; Based on the economic user power allocation strategy, the charging power of the charging pile in each time period is controlled.

2. The orderly charging control method according to claim 1, characterized in that: The charging time window is divided into points, and a reverse step power allocation method is used to generate an economic user power allocation strategy, including: Divide the charging time window into a time window sequence according to a preset time period; Arrange the time window sequence from large to small according to the peak and valley charging prices to obtain a price time series; According to the charging power constraint conditions of the charging pile, the charging power sequence of each time period and the charging sequence of each time period corresponding to the price time series are determined by using the reverse ladder power allocation method to generate a power allocation strategy for economic users; the charging sequence of each time period represents whether the economic user charges in each time period.

3. The orderly charging control method according to claim 2, characterized in that: The power allocation strategy includes a first-step power allocation strategy, a second-step power allocation strategy, a third-step power allocation strategy and a fourth-step power allocation strategy; The method of using the reverse step power allocation method to determine the charging power sequence of each time period and the charging sequence of each time period corresponding to the price time series, and generating the economic user power allocation strategy, includes: If the current required total charging amount is less than or equal to the maximum power supply during the valley period, the first step power allocation strategy is selected; the first step power allocation strategy is: the charging power during the peak period is the minimum charging power, the charging power during the normal period is the minimum charging power, and the charging power during the valley period is determined based on the charging power during the valley period; the charging power during the valley period is obtained by subtracting the charging power during the peak period and the charging power during the normal period from the total required charging amount; If the current required total charging amount is greater than the maximum power supply amount during the valley period, and is less than or equal to the sum of the maximum power supply amounts during the valley period and the normal period, then the second step power allocation strategy is selected; the second step power allocation strategy is: the charging power during the peak period is the minimum charging power, the charging power during the valley period is the maximum charging power, and the charging power during the normal period is determined based on the charging power during the normal period; the charging power during the normal period is obtained by subtracting the charging power during the peak period and the charging power during the valley period from the total required charging amount; If the current required total charging amount is greater than the sum of the maximum power supply amounts during the valley period and the normal period, and is less than or equal to the sum of the maximum power supply amounts during the valley period, the normal period, and the peak period, then the third-step power allocation strategy is selected; the third-step power allocation strategy is: the charging power during the valley period is the maximum charging power, the charging power during the normal period is the maximum charging power, and the charging power during the peak period is determined based on the charging power during the peak period; the charging power during the peak period is obtained by subtracting the charging power during the normal period and the charging power during the valley period from the total required charging amount; If the total amount of charging currently required is greater than the sum of the maximum power supply during valley periods, normal periods, and peak periods, the fourth-step power allocation strategy is selected; the fourth-step power allocation strategy is: the charging power during valley periods is the maximum charging power, the charging power during normal periods is the maximum charging power, and the charging power during peak periods is the maximum charging power.

4. The orderly charging control method according to claim 1, characterized in that: The controlling the charging power of the charging pile in each time period based on the economic user power allocation strategy includes: Based on the economic user power allocation strategy, the total economic demand power of all economic users in the next cycle is obtained; Determine the total power reserved for fast charging users and super fast charging users; Determine the total allowed power for economic users based on the total economic demand power and the total power of the reserved fast charging users and super fast charging users; Based on the total allowed power of economic users, the charging power of the charging pile in each time period is controlled.

5. The orderly charging control method according to claim 4, characterized in that: The determining of the total power reserved for fast charging users and super fast charging users includes: Get the total power of fast charging users and super fast charging users; Obtaining the minimum charging power of the economic user; the minimum charging power of the economic user is used as the transfer power; Based on the total power of the fast charging users and the super-fast charging users and the released power, the total power of the reserved fast charging users and the super-fast charging users is determined.

6. The orderly charging control method according to claim 4, characterized in that: The total permissible power of economic users includes the total reverse power per phase and the total permissible power per phase; The controlling the charging power of the charging pile in each time period based on the total allowed power of the economic user includes: If the total reverse power per phase is greater than the total permissible power per phase, the reverse power per economic user is limited in the same proportion so that the total reverse power per phase is limited to the total permissible power per phase; If the total reverse power per phase is less than or equal to the total allowable power per phase, the total allowable power for economic users is corrected, and then based on the corrected total allowable power for economic users, the charging power of the charging pile in each time period is controlled.

7. The orderly charging control method according to claim 6, characterized in that: The said modifying the total permitted power of the economic users comprises: Determining the total phase-by-phase corrected power based on the total phase-by-phase reverse power and the total phase-by-phase allowed power; Based on the split-phase total corrected power and the split-phase total reverse-sequence power, determining a correction ratio of the split-phase total reverse-sequence power of each economic user; Based on the correction ratio of the phase-sequence total reverse power, the phase-sequence total reverse power of economic users with full regulation capability is corrected; economic users with partial regulation capability and economic users without regulation capability are directly corrected according to the minimum power.

8. The orderly charging control method according to claim 7, characterized in that: The said modifying the total allowed power of the economic users further comprises: For AC economic users, the total corrected power of fast charging and ultra-fast charging is determined based on the peak shaving power and the corrected total allowed power of economic users; Based on the fast charging required power, the ultra-fast charging required power and the fast charging and ultra-fast total corrected power, the total corrected power of all fast charging users and the total corrected power of all ultra-fast charging users are determined.

9. The orderly charging control method according to any one of claims 1 to 8, characterized in that: After controlling the charging power of the charging pile in each time period based on the economic user power allocation strategy, the orderly charging control method further includes: Based on the charging power of the charging pile in each time period, the unallocated total power is determined.

10. An orderly charging control system, characterized in that: Including edge IoT proxy gateway and charging pile; The edge IoT proxy gateway is used to execute the orderly charging control method according to any one of claims 1 to 9, and generate a control instruction and send it to the charging pile; The charging pile adjusts the charging power in response to the control instruction issued by the edge IoT proxy gateway, and actively reports charging data information to the edge IoT proxy gateway.

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