Residential area reservation charging control method compatible with non-intelligent charging pile

Abstract

The invention relates to a residential district reservation charging control method compatible with a non-intelligent charging pile, and the method comprises the following steps: 1, collecting a non-intelligent pile reservation charging application and intelligent pile reservation charging application information inputted by a user, and calculating a current charging constraint condition; 2, calculating the total charging power of the non-intelligent pile according to the data collected in the step 1; step 3, calculating the available total capacity of the intelligent pile according to the total charging power of the non-intelligent pile obtained in the step 2; 4, calculating the power distribution of the intelligent charging pile based on the total available capacity of the intelligent pile obtained in the step 3; and 5, according to the power distribution result of the intelligent charging pile obtained in the step 4, the intelligent charging pile generates a charging strategy, the charging strategy is executed, and charging is completed. According to the invention, the problems of insufficient power capacity of the residential area and orderly charging adjustment under the condition that non-intelligent piles and intelligent piles coexist in the existing residential area can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent and orderly charging of electric vehicles, and relates to a residential area reservation charging control method, in particular to a residential area reservation charging control method compatible with non-intelligent charging piles. Background Art

[0002] With the rapid growth of electric vehicle ownership, the popularization of charging piles in residential areas has become a key link in the use of electric vehicles. At present, most residential charging piles are still dominated by non-intelligent charging piles. These charging piles have simple functions and can only provide basic charging services, and cannot respond to the needs of grid regulation. At the same time, some car companies and charging operators have begun to introduce intelligent and orderly charging piles. These charging piles have the ability to adjust the charging power, can reasonably arrange charging according to the power load conditions, and help balance the pressure on the grid. However, the number of intelligent and orderly piles is relatively small, and most of the built charging piles are still non-intelligent piles, resulting in the long-term coexistence of non-intelligent piles and intelligent and orderly piles in residential areas.

[0003] At present, grid load management is crucial for large-scale access to electric vehicles. In residential areas with limited power capacity, centralized charging will lead to excessive peak load on the grid, affecting the stability and safety of the power system. Although intelligent orderly charging technology has alleviated this problem to a certain extent, due to the low penetration rate of intelligent orderly charging piles in residential areas, the orderly regulation of intelligent charging piles alone cannot fully play the role of regulation and it is difficult to effectively reduce the overall maximum charging load of the residential area.

[0004] In response to the above problems, how to improve the access capacity of charging piles in residential areas and optimize grid load management have become technical challenges that need to be solved urgently.

[0005] Current technical solutions mostly focus on improving the orderly charging capability of smart charging piles, while the regulation capability of non-intelligent charging piles has not been fully utilized. In order to better optimize the overall load management of residential areas, an orderly charging control method that is compatible with both non-intelligent charging piles and smart charging piles is urgently needed.

[0006] After searching, no public documents of the prior art identical or similar to the present invention were found. Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and propose a residential area reservation charging control method compatible with non-intelligent charging piles, which can cope with the problems of insufficient power capacity in residential areas and orderly charging adjustment when non-intelligent piles and intelligent piles coexist in existing residential areas.

[0008] The present invention solves the practical problem by adopting the following technical solutions:

[0009] A method for controlling reserved charging in a residential area compatible with a non-intelligent charging pile comprises the following steps:

[0010] Step 1: Collect the non-intelligent pile charging reservation application and the intelligent pile charging reservation application information input by the user, and calculate the current charging constraint conditions;

[0011] Step 2: Calculate the total charging power of the non-intelligent pile according to the data collected in step 1;

[0012] Step 3: Calculate the total available capacity of the smart pile according to the total charging power of the non-smart pile obtained in step 2;

[0013] Step 4: Calculate the power distribution of the smart charging pile based on the total available capacity of the smart pile obtained in step 3;

[0014] Step 5: According to the power allocation result of the smart charging pile obtained in step 4, the smart charging pile generates a charging strategy, executes the charging strategy, and completes charging.

[0015] Moreover, the specific method of step 1 is:

[0016] (1) Collect non-intelligent pile reservation charging application information, including the reservation start time of the non-intelligent pile: T 1,j , vehicle battery capacity: B 1,j ,Vehicle remaining SOC: S 1,j , j represents different vehicles, and these data are input by the user through the interactive interface;

[0017] (2) Collect smart pile charging reservation application information, including the end time of smart pile charging or the time of vehicle use: T 2,k , vehicle battery capacity: B 2,k ,Vehicle remaining SOC: S 2,k , k represents different vehicles, and these data are input by the user through the interactive interface;

[0018] (3) Calculate the charging constraint condition, that is, the maximum allowable charging power P in each period all,i (i represents different time periods): It can be collected and calculated by the equipment, or input through an external system.

[0019] Moreover, the calculation formula of step 2 is:

[0020] Calculate the total charging power P of non-intelligent piles 1,j

[0021] Non-intelligent pile charging end time E 1,j The calculation formula is as follows:

[0022] E 1,j =T 1,j +(B1,j -S 1,j ) / F 1,j

[0023] F 1,j Installed power for non-intelligent piles;

[0024] P 1,j =ΣF 1,j (T 1,j ≤i≤E 1,j )

[0025] Non-intelligent pile charging total power P 1,j It is the sum of the installed powers of non-intelligent charging piles whose charging start time T1 is before time i and whose charging end time E1 is after time i.

[0026] Moreover, the calculation formula of step 3 is:

[0027] Smart piles can use the total capacity to calculate P 2,i

[0028] P 2,i =P all,i -P 1,i .

[0029] Moreover, the specific steps of step 4 include:

[0030] (1) The owner is required to use the vehicle for a certain period of time (T) 2,k Before, complete the charging;

[0031] B 2,k (T 2,k )-S 2,k (T 2,k )=0

[0032] B 2,k (i) = S 2,k (i)+P k (i) × △t

[0033] P k (i) is the charging power of the smart pile at time i;

[0034] (2) Smart charging piles charge in an orderly manner, shifting peak hours to fill valley hours, and achieving optimal charging costs;

[0035]

[0036] EP(i) is the electricity price at time i;

[0037] P k (i) Subject to the following:

[0038]

[0039] It is to ensure that the power demand does not exceed the actual power limit required in the current time period;

[0040] P 2,k,i It is the remaining total available capacity allocated to each smart charging pile through the optimization algorithm at time i;

[0041] BQ 2,k (i) is the battery power requested at time i; F 2,k is the installed power of the smart charging pile;

[0042] P 2,k,i Subject to the following constraints:

[0043] The sum of the remaining available capacity of all smart charging piles shall not exceed the total available capacity P of the smart piles. 2,i .

[0044] Advantages and beneficial effects of the present invention:

[0045] 1. The present invention provides a residential area reservation charging control method that is compatible with non-intelligent charging piles. Through the reservation charging mechanism, the collaborative work of non-intelligent charging piles and intelligent orderly charging piles is realized. This strategy allows non-intelligent charging pile users to make reservations for charging within a specific time period. The system plans charging behavior in advance through unified scheduling of reservation information. Without increasing the investment in power infrastructure, it optimizes the load distribution and avoids excessive concentration of power load during peak charging periods. This strategy reduces the maximum charging load in residential areas by being compatible with the participation of non-intelligent charging piles, greatly improving the charging pile access capacity in residential areas, providing a new means for improving grid load regulation, and laying the foundation for future intelligent power management.

[0046] 2. The present invention allows users to reserve charging time in advance and uniformly dispatches and optimizes the charging needs of non-intelligent piles and intelligent piles, which can effectively reduce the maximum load of charging piles, realize overall regulation of charging behavior in residential areas, improve the carrying capacity of the power system, and ensure the stable operation of the electric vehicle charging network in residential areas.

[0047] 3. The present invention firstly designs a residential reservation charging control strategy that is compatible with non-intelligent charging piles, thereby effectively solving the limitation that non-intelligent charging piles cannot be charged in an orderly manner; secondly, the strategy can optimize the allocation and utilization efficiency of power resources and improve the overall utilization rate of the distribution network; finally, the strategy uniformly dispatches and optimizes the charging needs of non-intelligent piles and intelligent piles, which can effectively reduce the maximum load of the charging piles, improve the carrying capacity of the power system, and enhance the ability of the low-voltage distribution system to access the residential charging piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is a process flow chart of the present invention;

[0049] Figure 2 This is a flow chart of the non-intelligent pile reservation charging mode of the present invention;

[0050] Figure 3 This is a flow chart of the orderly charging mode of the smart pile of the present invention. DETAILED DESCRIPTION

[0051] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0052] A residential area reservation charging control method compatible with non-intelligent charging piles, such as Figures 1 to 3 As shown, the following steps are included:

[0053] Step 1: Collect the non-intelligent pile charging reservation application and the intelligent pile charging reservation application information input by the user, and calculate the current charging constraint conditions;

[0054] The specific method of step 1 is:

[0055] (1) Collect non-intelligent pile reservation charging application information, including the reservation start time of the non-intelligent pile: T 1,j , vehicle battery capacity: B 1,j ,Vehicle remaining SOC: S 1,j , j represents different vehicles, and these data are input by the user through the interactive interface;

[0056] (2) Collect smart pile charging reservation application information, including the end time of smart pile charging or the time of vehicle use: T 2,k , vehicle battery capacity: B 2,k ,Vehicle remaining SOC: S 2,k , k represents different vehicles, and these data are input by the user through the interactive interface;

[0057] (3) Calculate the charging constraint condition, that is, the maximum allowable charging power P in each period all,i (i represents different time periods): It can be collected and calculated by the equipment, or input through an external system;

[0058] Step 2: Calculate the total charging power of the non-intelligent pile according to the data collected in step 1;

[0059] The calculation formula of step 2 is:

[0060] Calculate the total charging power P of non-intelligent piles 1,j

[0061] Non-intelligent pile charging end time E 1,j The calculation formula is as follows:

[0062] E 1,j =T 1,j +(B 1,j -S 1,j ) / F 1,j

[0063] F 1,j Installed power for non-intelligent piles;

[0064] P 1,j =ΣF 1,j (T 1,j ≤i≤E 1,j )

[0065] Non-intelligent pile charging total power P 1,j It is the sum of the installed powers of non-intelligent charging piles whose charging start time T1 is before time i and whose charging end time E1 is after time i.

[0066] Step 3: Calculate the total available capacity of the smart pile according to the total charging power of the non-smart pile obtained in step 2;

[0067] The calculation formula of step 3 is:

[0068] Smart piles can use the total capacity to calculate P 2,i

[0069] P 2,i =P all,i -P 1,i

[0070] Step 4: Calculate the power distribution of the smart charging pile based on the total available capacity of the smart pile obtained in step 3;

[0071] The specific steps of step 4 include:

[0072] (1) The owner is required to use the vehicle for a certain period of time (T) 2,k Before, complete the charging;

[0073] B 2,k (T 2,k )-S 2,k (T 2,k )=0

[0074] B 2,k (i) = S 2,k (i)+P k (i)×Δt

[0075] P k (i) is the charging power of the smart pile at time i;

[0076] (2) Smart charging piles charge in an orderly manner, shifting peak hours to fill valley hours, and achieving optimal charging costs;

[0077]

[0078] EP(i) is the electricity price at time i;

[0079] P k (i) Subject to the following:

[0080]

[0081] It is to ensure that the power demand does not exceed the actual power limit required in the current time period;

[0082] P 2,k,i It is the remaining total available capacity allocated to each smart charging pile through the optimization algorithm at time i;

[0083] BQ 2,k (i) is the battery power requested at time i; F 2,k It is the installed power of the smart charging pile.

[0084] P 2,k,i Subject to the following constraints:

[0085] The sum of the remaining available capacity of all smart charging piles shall not exceed the total available capacity P of the smart piles. 2,i .

[0086] Step 5: According to the power allocation result of the smart charging pile obtained in step 4, the smart charging pile generates a charging strategy, executes the charging strategy, and completes charging.

[0087] In this embodiment, a residential area reservation charging control strategy compatible with non-intelligent charging piles includes two charging modes.

[0088] like Figure 2 As shown in the figure, the implementation process of the non-intelligent pile reservation charging mode is as follows:

[0089] A1. User plugs in the gun and enters the scheduled start time of the non-smart pile through the interactive interface: T 1,j , vehicle battery capacity: B 1,j ,Vehicle remaining SOC: S 1,j , j represents different vehicles;

[0090] A2. Scheduled start time for arrival at non-intelligent pile: T 1,j After that, the non-intelligent pile starts charging, and the charging power is the installed power F of the non-intelligent pile. 1,j ;

[0091] A3. The battery is fully charged and the non-intelligent charging pile ends charging.

[0092] like Figure 3As shown in the figure, the implementation process of the smart pile orderly charging mode is:

[0093] B1. The user plugs in the gun and enters the end time of charging or the time of using the car through the interactive interface: T 2,k , vehicle battery capacity: B 2,k ,Vehicle remaining SOC: S 2,k , k represents different vehicles;

[0094] B2. Intelligent charging pile generates charging strategy and executes charging strategy

[0095] B3. The battery is fully charged and the smart charging station ends charging.

[0096] The process of generating the charging strategy of the smart charging pile in B2 is as follows:

[0097] 1. Non-intelligent pile charging total power P 1,j

[0098] Non-intelligent pile charging end time E 1,j The calculation formula is as follows:

[0099] E 1,j =T 1,j +(B 1,j -S 1,j ) / F 1,j

[0100] F 1,j Installed power for non-intelligent piles;

[0101] P 1,j =∑F 1,j (T 1,j ≤i≤E 1,j )

[0102] Non-intelligent pile charging total power P 1,j It is the sum of the total charging power of the non-intelligent charging piles whose charging start time T1 is before time i and whose charging end time E1 is after time i.

[0103] 2. Calculation of available capacity of smart pile P 2,i

[0104] P 2,i =P all,i -P 1,i

[0105] 3. Intelligent charging pile power distribution

[0106] (1) The owner is required to use the vehicle for a certain period of time (T) 2,k Before, complete charging

[0107] B 2,k (T 2,k)-S 2,k (T 2,k )=0

[0108] B 2,k (i) = S 2,k (i)+P k (i) × △t

[0109] P k (i) is the charging power of the smart pile at time i;

[0110] (2) Smart charging piles charge in an orderly manner, shifting peaks to fill valleys, and achieving optimal charging costs

[0111]

[0112] EP(i) is the electricity price at time i; P k (i) Subject to the following:

[0113]

[0114] It is to ensure that the power demand does not exceed the actual power limit required in the current time period;

[0115] P 2,k,i It is the remaining total available capacity allocated to each smart charging pile through the optimization algorithm at time i;

[0116] BQ 2,k (i) is the battery power requested at time i;

[0117] F 2,k It is the installed power of the smart charging pile.

[0118] P 2,k,i Subject to the following constraints:

[0119]

[0120] The sum of the remaining available capacity of all smart charging piles shall not exceed the total available capacity P of the smart piles. 2,i

[0121] It should be emphasized that the embodiments of the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation modes. Any other implementation modes derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A residential area reservation charging control method compatible with non-intelligent charging piles, characterized in that: The following steps are involved: Step 1: Collect the non-intelligent pile charging reservation application and the intelligent pile charging reservation application information input by the user, and calculate the current charging constraint conditions; Step 2: Calculate the total charging power of the non-intelligent pile according to the data collected in step 1; Step 3: Calculate the total available capacity of the smart pile according to the total charging power of the non-smart pile obtained in step 2; Step 4: Calculate the power distribution of the smart charging pile based on the total available capacity of the smart pile obtained in step 3; Step 5: According to the power allocation result of the smart charging pile obtained in step 4, the smart charging pile generates a charging strategy, executes the charging strategy, and completes charging.

2. A residential area reservation charging control method compatible with non-intelligent charging piles according to claim 1, characterized in that: The specific method of step 1 is: (1) Collect non-intelligent pile reservation charging application information, including the reservation start time of the non-intelligent pile: T 1,j , Vehicle battery capacity: B 1,j ,Vehicle remaining SOC: S 1,j , j represents different vehicles, and these data are input by the user through the interactive interface; (2) Collect smart pile charging reservation application information, including the end time of smart pile charging or the time of vehicle use: T 2,k , Vehicle battery capacity: B 2,k ,Vehicle remaining SOC: S 2,k , k represents different vehicles, and these data are input by the user through the interactive interface; (3) Calculate the charging constraint condition, that is, the maximum allowable charging power P in each period all,i (i represents different time periods): It can be collected and calculated by the equipment, or input through an external system.

3. A residential area reservation charging control method compatible with non-intelligent charging piles according to claim 1, characterized in that: The calculation formula of step 2 is: Calculate the total charging power P of non-intelligent piles 1,j Non-intelligent pile charging end time E 1,j The calculation formula is as follows: E 1,j =T 1,j +(B 1,j -S 1,j ) / F 1,j F 1,j Installed power for non-intelligent piles; P 1,j =∑F 1,j (T 1,j ≤i≤E 1,j ) Non-intelligent pile charging total power P 1,j It is the sum of the installed powers of non-intelligent charging piles whose charging start time T1 is before time i and whose charging end time E1 is after time i.

4. A residential area reservation charging control method compatible with non-intelligent charging piles according to claim 1, characterized in that: The calculation formula of step 3 is: Smart piles can use the total capacity to calculate P 2,i P 2,i =P all,i -P 1,i 。 5. The method for controlling reserved charging in residential areas compatible with non-intelligent charging piles according to claim 1, characterized in that: The specific steps of step 4 include: (1) The owner is required to use the vehicle for a certain period of time (T) 2,k Before, complete charging; B 2,k (T 2,k )-S 2,k (T 2,k )=0 B 2,k (i)=S 2,k (i)+P k (i)×Δt P k (i) is the charging power of the smart pile at time i; (2) Smart charging piles charge in an orderly manner, shifting peak hours to fill valley hours, and achieving optimal charging costs; EP(i) is the electricity price at time i; P k (i) Subject to the following: It is to ensure that the power demand does not exceed the actual power limit required in the current time period; P 2,k,i It is the remaining total available capacity allocated to each smart charging pile through the optimization algorithm at time i; BQ 2,k (i) is the battery power requested at time i; F 2,k is the installed power of the smart charging pile; P 2,k,i Subject to the following constraints: The sum of the remaining available capacity of all smart charging piles shall not exceed the total available capacity P of the smart piles. 2,i .

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