Design method and system of intercity highway network charging facilities for new energy vehicles

Abstract

The application discloses a design method and system of inter-city highway network charging facilities of new energy vehicles, relates to the technical field of charging planning, and collects vehicle energy supplement demand information and service area power connection information of each service area, generates a vehicle energy supplement task set and a task demand power set, forms a power sharing group set according to a charging gun and a power cabinet corresponding relationship, maps the vehicle energy supplement task to the corresponding power sharing group, and calculates a shared group power acceptance result. By judging whether the shared group power acceptance result meets the power constraint of not exceeding the rated output power of the power cabinet, a topology bottleneck group set is determined, and the service capacity of the target service area in the target time period is corrected accordingly, a topology effective service capacity result and a charging facility design scheme are generated, so that multiple charging guns sharing the same power cabinet are avoided from being mistakenly considered as having independent output capacity, and the design result is directed to the power sharing group with actual power limitation.

Description

Technical Field

[0001] This invention relates to the field of charging planning technology, specifically to a design method and system for charging facilities in intercity highway networks for new energy vehicles. Background Technology

[0002] As the proportion of new energy vehicles used in intercity travel, trunk logistics and regional commuting increases, the charging facilities in service areas of intercity highway networks are no longer just a matter of the number of individual stations, but are gradually becoming a technical field that requires overall planning based on vehicle travel routes, energy replenishment needs along the way, power supply structure of service areas and facility capacity.

[0003] Existing service area charging facility planning typically involves capacity design based on traffic flow, charging demand, number of charging guns, total station power, or queuing service level. However, the charging demand generated by vehicles during intercity travel often has task attributes such as minimum charging capacity and allowable charging time. Furthermore, multiple charging guns within a service area may share the same power cabinet or the same power distribution unit. If the total station power or total number of guns is still used as the main design basis, the actual matching relationship between vehicle charging tasks and power sharing structure is easily overlooked. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a design method and system for charging facilities on intercity highway networks for new energy vehicles, solving the problems mentioned in the background section.

[0005] This invention is achieved through the following technical solution: a design method for charging facilities in intercity highway networks for new energy vehicles, comprising the following steps: S1. Collect vehicle energy replenishment demand information and service area power connection information corresponding to each service area in the intercity highway network to form a basic data set of energy replenishment facilities. The vehicle energy replenishment demand information includes the target service area, target time period, minimum energy replenishment capacity and allowed energy replenishment time. The service area power connection information includes the charging gun, power cabinet, the correspondence between the charging gun and the power cabinet and the rated output power of the power cabinet. S2. Generate a set of vehicle recharge tasks based on vehicle recharge demand information, and calculate the task demand power corresponding to each vehicle recharge task in the set of vehicle recharge tasks according to the minimum recharge power and the allowed recharge time, forming a set of task demand power. S3. Based on the correspondence between charging guns and power cabinets, multiple charging guns powered by the same power cabinet are divided into power sharing groups. All power sharing groups form a power sharing group set. The vehicle charging tasks in the vehicle charging task set are mapped to the corresponding power sharing groups to form a task group mapping set. S4. Based on the task group mapping set and the task demand power set, calculate the total power of the vehicle refueling task undertaken by each power sharing group in the corresponding target time period, obtain the power undertaking result of the sharing group, and determine whether the power undertaking result of the sharing group meets the power constraint of not exceeding the rated output power of the corresponding power cabinet. When the power undertaking result of the sharing group does not meet the power constraint, the corresponding power sharing group is determined as the topology bottleneck group, and the topology bottleneck group set is formed by all the topology bottleneck groups. S5. Based on the topology bottleneck set, correct the service capacity of the corresponding target service area within the corresponding target time period, generate the topology effective service capacity result, and generate the charging facility design scheme based on the topology effective service capacity result.

[0006] Preferably, step S1 includes: S11. Read the target service area, target time period, minimum energy consumption and allowable energy consumption time corresponding to each energy consumption demand record from the intercity highway network energy consumption demand forecast data, and combine the target service area, target time period, minimum energy consumption and allowable energy consumption time corresponding to the same energy consumption demand record into a vehicle energy consumption demand information; S12. Read the charging gun, power cabinet, the correspondence between charging gun and power cabinet and the rated output power of power cabinet for each service area from the service area equipment ledger data. Combine the charging gun, power cabinet, the correspondence between charging gun and power cabinet and the rated output power of power cabinet for the same service area into service area power connection information. Then write the vehicle energy replenishment demand information with the same target service area and the same target time period and the corresponding service area power connection information into the same basic data subset. The entire basic data subset forms the basic data set of energy replenishment facilities.

[0007] Preferably, step S2 includes: S21. Convert each vehicle energy replenishment demand information into a vehicle energy replenishment task, and write the target service area, target time period, minimum energy replenishment capacity and allowed energy replenishment time from the corresponding vehicle energy replenishment demand information into the corresponding vehicle energy replenishment task. S22. All vehicle refueling tasks are grouped into a vehicle refueling task set according to the corresponding target service area and the corresponding target time period. The vehicle refueling task set is used to represent all vehicle refueling tasks that need to be completed in each target service area within each target time period.

[0008] Preferably, step S2 further includes: S23. For each vehicle refueling task, if the corresponding allowed refueling time is a positive time value, the ratio of the corresponding minimum refueling power to the corresponding allowed refueling time is determined as the task power requirement of the corresponding vehicle refueling task. S24. Write all the required power of the tasks into the task power set according to the corresponding vehicle refueling tasks. The task power set is used to represent the power result required for all vehicle refueling tasks in the vehicle refueling task set to complete the corresponding minimum refueling power within the corresponding allowed refueling time.

[0009] Preferably, step S3 includes: S31. Based on the correspondence between charging guns and power cabinets, all charging guns corresponding to the same power cabinet are divided into a power sharing group. S32. Write all power sharing groups into the power sharing group set according to the corresponding target service area. The power sharing group is used to represent the charging gun combination that shares the rated output power of the same power cabinet. The power sharing group set is used to represent the set result of all power sharing groups in each target service area.

[0010] Preferably, step S3 further includes: S33. Within the same target service area and the same target time period, arrange the vehicle refueling tasks in the vehicle refueling task set from largest to smallest according to the corresponding task power demand value to obtain the task sorting result. Then, arrange the power sharing groups in the corresponding target service area according to the record order of the corresponding power cabinet in the service area equipment ledger data to obtain the sharing group sorting result. S34. Initialize the total received power of each power sharing group to zero. Select vehicle refueling tasks in sequence according to the task sorting results. Map the selected vehicle refueling tasks to the power sharing group with the lowest total received power. If the total received power of two or more power sharing groups is the same, map the selected vehicle refueling tasks to the power sharing group ranked first in the sharing group sorting results. After each mapping, the task demand power corresponding to the mapped vehicle refueling task is added to the total received power of the corresponding power sharing group. The task group mapping set is formed by all mapping records. The total received power is used to represent the cumulative result of the task demand power corresponding to all the vehicle refueling tasks mapped in the corresponding power sharing group.

[0011] Preferably, step S4 includes: S41. Based on the task group mapping set, determine all vehicle refueling tasks undertaken by each power sharing group within the corresponding target time period. S42. The power requirements of all vehicle refueling tasks undertaken by the same power sharing group within the same target time period are summed to obtain the power sharing group undertaking power result of the corresponding power sharing group. The power sharing group undertaking power result is used to represent the total power required by the corresponding power sharing group to undertake all vehicle refueling tasks within the corresponding target time period.

[0012] Preferably, step S4 further includes: S43. Determine whether the power received by each power sharing group meets the power constraint that it does not exceed the rated output power of the corresponding power cabinet, and determine the power sharing group that does not meet the power constraint as the topology bottleneck group. The power constraint is used to represent the constraint condition that the power received by the corresponding power sharing group does not exceed the rated output power of the corresponding power cabinet. S44. The non-negative difference obtained by subtracting the rated output power of the corresponding power cabinet from the shared group power result of each topology bottleneck group is determined as the bottleneck power gap result. A topology bottleneck group set is formed from all topology bottleneck groups, and a bottleneck power gap set is formed from all bottleneck power gap results.

[0013] Preferably, step S5 includes: S51. For power sharing groups that belong to the topology bottleneck group set, the rated output power of the corresponding power cabinet is determined as the effective power receiving result of the sharing group. For power sharing groups that do not belong to the topology bottleneck group set, the corresponding power receiving result of the sharing group is determined as the effective power receiving result of the sharing group. The cumulative value of the effective power receiving results of all sharing groups within the same target service area and the same target time period is determined as the topology effective service capability result. The topology effective service capability result is used to represent the actual power receiving capacity of the corresponding target service area after being limited by the rated output power of the power cabinet within the corresponding target time period. S52. The cumulative value of the power demand of all tasks within the same target service area and the same target time period is determined as the total power of the service area tasks. It is then determined whether the effective service capacity result of the topology is lower than the total power of the service area tasks. When the effective service capacity result of the topology is lower than the total power of the service area tasks, the corresponding target service area is determined as the capacity adjustment service area. The capacity adjustment service area, the corresponding target time period, the corresponding total power of the service area tasks, the corresponding effective service capacity result of the topology, the corresponding set of topology bottleneck groups, and the corresponding set of bottleneck power gaps are written into the charging facility design scheme.

[0014] The design system for charging facilities in intercity highway networks for new energy vehicles includes a basic data processing module, a charging task generation module, a power sharing mapping module, a topology bottleneck identification module, and a facility scheme generation module. The basic data processing module is used to collect vehicle energy replenishment demand information and service area power connection information, and form a basic data set of energy replenishment facilities. The energy replenishment task generation module is used to generate a set of vehicle energy replenishment tasks based on vehicle energy replenishment demand information, and form a set of task demand power. The power sharing mapping module is used to form a power sharing group set according to the correspondence between the charging gun and the power cabinet, and to map the vehicle charging task to the power sharing group to form a task group mapping set. The topology bottleneck identification module is used to form a shared group power carrying result based on the task group mapping set and the task demand power set, and to form a topology bottleneck group set based on the comparison result of the shared group power carrying result and the rated output power of the power cabinet. The facility scheme generation module is used to form the topology effective service capability result based on the topology bottleneck group set, and generate the charging facility design scheme based on the topology effective service capability result.

[0015] This invention provides a design method and system for charging facilities on intercity highway networks for new energy vehicles, which has the following beneficial effects: (1) This scheme uses the vehicle charging task set and the correspondence between charging guns and power cabinets as the basis for service capability judgment. The service capability judgment object is refined from the total number of charging guns and total power of the target service area to the power sharing group. This prevents multiple charging guns sharing the same power cabinet from being counted as independent power output units, thereby avoiding the overestimation of the service capability of the target service area by the station-level aggregated data, and directing the charging facility design scheme to the specific power sharing group limited by the rated output power of the power cabinet.

[0016] (2) This scheme sorts the vehicle recharge tasks according to the power required by the task, and maps the vehicle recharge tasks to the corresponding power sharing group in combination with the total power already received. This ensures that the receiving position, sorting basis and mapping result of each vehicle recharge task are recorded in the task group mapping set, thereby avoiding the situation where the recharge pressure is estimated based on the number of vehicles or the number of charging guns and it is impossible to determine which power sharing group the specific task falls into. It also provides a traceable data source for the subsequent calculation of the power received by the sharing group.

[0017] (3) Based on the task group mapping set, this scheme calculates the power received by the shared group one by one, and performs power constraint judgment on the power received by the shared group and the rated output power of the corresponding power cabinet, forming a set of topological bottleneck groups and a set of bottleneck power gaps with specific group identifiers and power cabinet numbers. Thus, when the overall power of the target service area seems to meet the demand, it can still identify the local power shortage caused by multiple charging guns under a certain power cabinet jointly undertaking the vehicle energy replenishment task, and give the power gap of the corresponding power sharing group. Attached Figure Description

[0018] Figure 1 A schematic diagram illustrating the design methodology for charging infrastructure on intercity highway networks for new energy vehicles; Figure 2 This is a schematic diagram of the power sharing group mapping and bottleneck identification logic; Figure 3 A schematic diagram of the system structure for designing charging facilities for new energy vehicles on intercity highway networks. Detailed Implementation

[0019] The technical solutions of the present invention will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0020] Example 1 This embodiment applies to the design scenario of charging facilities in existing intercity highway service areas. For example, the target service area is equipped with multiple charging guns and multiple power cabinets, and some charging guns share the same power cabinet. When multiple new energy vehicles need to recharge en route in the target service area during the target time period, if the design is based solely on the total number of charging guns or the total rated output power of the power cabinets in the target service area, the shared power of multiple charging guns under the same power cabinet may be mistakenly assumed to be output independently, resulting in an overestimation of the service capacity of the target service area. Therefore, this embodiment transforms the vehicle recharge demand into a vehicle recharge task and maps the vehicle recharge task to the corresponding power sharing group to identify the topology bottleneck group and correct the effective service capacity of the topology.

[0021] This invention provides a design method for charging facilities on intercity highway networks for new energy vehicles. Please refer to [link / reference]. Figure 1 This includes the following steps: S1. Collect vehicle energy replenishment demand information and service area power connection information corresponding to each service area in the intercity highway network to form a basic data set of energy replenishment facilities. The vehicle energy replenishment demand information includes the target service area, target time period, minimum energy replenishment capacity and allowed energy replenishment time. The service area power connection information includes the charging gun, power cabinet, the correspondence between the charging gun and the power cabinet and the rated output power of the power cabinet. S2. Generate a set of vehicle recharge tasks based on vehicle recharge demand information, and calculate the task demand power corresponding to each vehicle recharge task in the set of vehicle recharge tasks according to the minimum recharge power and the allowed recharge time, forming a set of task demand power. S3. Based on the correspondence between charging guns and power cabinets, multiple charging guns powered by the same power cabinet are divided into power sharing groups. All power sharing groups form a power sharing group set. The vehicle charging tasks in the vehicle charging task set are mapped to the corresponding power sharing groups to form a task group mapping set. S4. Based on the task group mapping set and the task demand power set, calculate the total power of the vehicle refueling task undertaken by each power sharing group in the corresponding target time period, obtain the power undertaking result of the sharing group, and determine whether the power undertaking result of the sharing group meets the power constraint of not exceeding the rated output power of the corresponding power cabinet. When the power undertaking result of the sharing group does not meet the power constraint, the corresponding power sharing group is determined as the topology bottleneck group, and the topology bottleneck group set is formed by all the topology bottleneck groups. S5. Based on the topology bottleneck set, correct the service capacity of the corresponding target service area within the corresponding target time period, generate the topology effective service capacity result, and generate the charging facility design scheme based on the topology effective service capacity result.

[0022] In this embodiment, through the above processing, the charging facility service capacity is not determined solely based on the total number of charging guns or the total rated output power of the power cabinet within the target service area. Instead, the vehicle charging demand information is transformed into a set of vehicle charging tasks, and the vehicle charging tasks are mapped to power sharing groups according to the correspondence between charging guns and power cabinets. This allows for the identification of topological bottleneck groups formed when multiple charging guns under the same power cabinet jointly undertake vehicle charging tasks. The effective service capacity of the topology is used as the basis for generating charging facility design schemes. For example, in existing highway service areas, even if the number of multiple charging guns appears to meet the queuing charging demand of vehicles, it is possible to further determine whether the power sharing group corresponding to a certain power cabinet cannot undertake the power demand of the assigned task. This avoids mistaking multiple charging guns in a shared power cabinet for having independent output capabilities, enabling the charging facility design scheme to target power sharing groups with actual power limitations.

[0023] Example 2 Specifically: Step S1 includes: S11. Read the target service area, target time period, minimum energy consumption and allowable energy consumption time corresponding to each energy consumption demand record from the intercity highway network energy consumption demand forecast data, and combine the target service area, target time period, minimum energy consumption and allowable energy consumption time corresponding to the same energy consumption demand record into a vehicle energy consumption demand information; Specifically: In the scenario set in Example 1, the intercity highway network energy replenishment demand prediction data is generated from historical charging orders of service areas, intercity highway vehicle passage records and energy replenishment demand prediction results. Each energy replenishment demand record includes at least the service area identifier, demand start time, demand end time, expected energy replenishment amount and expected stay duration. The system reads the service area identifier and writes it into the target service area, reads the demand start time and demand end time and writes them together into the target time period, reads the expected energy replenishment amount and writes it into the minimum energy replenishment amount, and reads the expected stay duration and writes it into the allowed energy replenishment time.

[0024] The energy replenishment demand forecast can be generated by the service area operation system based on the historical number of vehicles arriving at the station, the energy replenishment per vehicle in historical charging orders, and the expected number of vehicles arriving at the station within the target time period.

[0025] During data processing: The target service area uses the service area number registered in the service area operation system as the judgment field. When the service area numbers in two records are the same, they are determined to belong to the same target service area. The target time period is represented by the start time and end time. When the start time and end time in two records are the same, they are determined to belong to the same target time period. The start time and end time are recorded in accordance with the unified clock format of the service area operation system.

[0026] It should be noted that the length of the target time period is determined by the granularity of the charging demand statistics in the service area operation system. This granularity can be configured by the implementation personnel according to the statistical cycle of the service area charging orders. After configuration, the same granularity is used for calculations of the same batch. If the original data only contains the vehicle's expected arrival time and expected stay duration, the system uses the expected arrival time as the start time of the target time period and the time obtained by adding the expected stay duration to the expected arrival time as the end time of the target time period.

[0027] When the service area operation system has configured a charging order statistics period, that statistics period shall be used as the granularity of the charging demand statistics; when no charging order statistics period has been configured, the unified statistics period adopted by the service area facility designers in the design of this batch of facilities shall be used as the granularity of the charging demand statistics.

[0028] Specifically: the minimum replenishment power is in kilowatt-hours. If the expected replenishment power in the original data is in watt-hours, it will be converted to kilowatt-hours before being written into the minimum replenishment power. The allowable replenishment time is in hours. If the expected dwell time in the original data is in minutes, it will be converted to hours before being written into the allowable replenishment time. This ensures that the unit of the task power requirement calculated later is kilowatts.

[0029] In this embodiment: the system writes the target service area, target time period, minimum charging capacity, and allowed charging time from the same charging demand record into the same data record, and generates a unique demand identifier for the data record, which is the vehicle charging demand information; if the same charging demand record lacks any of the fields of service area identifier, demand start time, demand end time, expected charging capacity, or expected stay duration, the system writes the charging demand record into the abnormal charging demand record and does not combine it into the vehicle charging demand information for subsequent calculation.

[0030] S12. Read the charging gun, power cabinet, the correspondence between charging gun and power cabinet and the rated output power of power cabinet for each service area from the service area equipment ledger data. Combine the charging gun, power cabinet and the correspondence between charging gun and power cabinet and the rated output power of power cabinet for the same service area into service area power connection information. Then write the vehicle energy replenishment demand information with the same target service area and the same target time period and the corresponding service area power connection information into the same basic data subset. The entire basic data subset forms the energy replenishment facility basic data set. Specifically: The service area equipment ledger data is provided by the service area charging operation system or equipment asset management system. The system reads the charging gun number of each charging gun, the power cabinet number of each power cabinet, the power cabinet number corresponding to each charging gun number, and the rated output power of the power cabinet corresponding to each power cabinet number from the service area equipment ledger data, and combines the above data read under the same service area number into service area power connection information.

[0031] During data processing: the correspondence between charging guns and power cabinets is represented by paired records of charging gun number and power cabinet number. If a paired record contains both a charging gun number and a power cabinet number, the system determines that the charging gun corresponding to that charging gun number is powered by the power cabinet corresponding to that power cabinet number. If one charging gun number corresponds to more than two power cabinet numbers, the system uses the power cabinet number marked as currently in operation in the service area equipment ledger data as the valid number, and writes the power cabinet number not marked as currently in operation into the equipment relationship verification record.

[0032] Specifically: The system matches the service area number in the service area power connection information with the target service area in the vehicle refueling demand information. When the service area numbers are the same, the power connection information of that service area is determined as the power connection information of the target service area. The system then reads the target time period in the vehicle refueling demand information and writes all vehicle refueling demand information with the same service area number and the same start and end time of the target time period into the same basic data subset.

[0033] It should be noted that each basic data subset uses a service area number and a target time period as a subset index. The subset index consists of the service area number, start time, and end time. The system writes the corresponding vehicle refueling demand information and the corresponding service area power connection information according to the subset index, thereby avoiding data from different service areas or different time periods being written into the same basic data subset.

[0034] Step S2 includes: S21. Convert each vehicle energy replenishment demand information into a vehicle energy replenishment task, and write the target service area, target time period, minimum energy replenishment capacity and allowed energy replenishment time from the corresponding vehicle energy replenishment demand information into the corresponding vehicle energy replenishment task. Specifically: The system uses a vehicle refueling demand information as a task generation object, reads the demand identifier, target service area, target time period, minimum refueling capacity, and allowed refueling time of the vehicle refueling demand information, copies the above fields into a new task record, and identifies the new task record as the vehicle refueling task.

[0035] During data processing: the transformation does not recalculate the meaning of the fields, but writes the fields in the vehicle refueling demand information used for subsequent power calculation and task allocation into the task record and generates a task identifier for the task record; the task identifier consists of the corresponding demand identifier, service area number and target time period, so that the implementers can trace the corresponding vehicle refueling demand information through the task identifier.

[0036] It should be noted that: if the minimum charging capacity in a vehicle charging request is null or not a positive value, the system will write the vehicle charging request to the abnormal charging request record and will not convert it into a vehicle charging task for subsequent calculations; if the allowed charging time in a vehicle charging request is null or not a positive time value, the system will write the vehicle charging request to the abnormal charging request record and will not convert it into a vehicle charging task for subsequent calculations.

[0037] S22. All vehicle refueling tasks are grouped into a vehicle refueling task set according to the corresponding target service area and the corresponding target time period. The vehicle refueling task set is used to represent all vehicle refueling tasks that need to be completed in each target service area within each target time period. Specifically: The system reads the service area number, start time, and end time from each vehicle refueling task, and writes vehicle refueling tasks with the same service area number, start time, and end time into the same vehicle refueling task set, so that the same vehicle refueling task set corresponds to only one service area number and one target time period.

[0038] In this embodiment, the vehicle refueling task set is stored using a set index, which consists of the service area number, start time, and end time. Whenever the system generates a vehicle refueling task, it reads the set index of that vehicle refueling task. If a vehicle refueling task set with the same set index already exists, the vehicle refueling task is written into the existing vehicle refueling task set. If no vehicle refueling task set with the same set index exists, a new corresponding vehicle refueling task set is created and then written into the vehicle refueling task set.

[0039] It should be noted that each vehicle refueling task in the vehicle refueling task set retains its corresponding task identifier, target service area, target time period, minimum refueling power, and allowed refueling time, so that the task power requirement can be calculated item by item according to the task identifier and the calculation results can be written into the task power requirement set.

[0040] Step S2 further includes: S23. For each vehicle refueling task, if the corresponding allowed refueling time is a positive time value, the ratio of the corresponding minimum refueling power to the corresponding allowed refueling time is determined as the task power requirement of the corresponding vehicle refueling task. Specifically: The system reads each vehicle recharge task in the vehicle recharge task set in sequence. First, it reads the allowed recharge time for the vehicle recharge task. When the allowed recharge time is a positive time value, it continues to read the minimum recharge capacity for the vehicle recharge task and divides the minimum recharge capacity by the allowed recharge time to obtain the task power requirement for the vehicle recharge task.

[0041] During data processing: the positive time value is determined by the fact that the allowed recharge time has been converted to a unit and its value is greater than zero; the positive energy value is determined by the fact that the minimum recharge energy has been converted to a unit and its value is greater than zero. When the allowed recharge time or the minimum recharge energy does not meet the above determination criteria, the system will write the corresponding vehicle recharge task into the abnormal recharge task record and will not treat the vehicle recharge task as the calculation object of the task demand power set.

[0042] It should be noted that: when the minimum replenishment power is in kilowatt-hours and the allowable replenishment time is in hours, the unit of the task power requirement is kilowatts; after the calculation is completed, the system will save the calculated task power requirement together with the corresponding task identifier, so that the task power requirement can be called by subsequent steps according to the task identifier.

[0043] S24. Write all the required power of the tasks into the task power set according to the corresponding vehicle recharge tasks. The task power set is used to represent the power result required for all vehicle recharge tasks in the vehicle recharge task set to complete the corresponding minimum recharge power within the corresponding allowed recharge time. Specifically: After obtaining the power requirement of a vehicle refueling task, the system generates a power result record. The power result record includes the task identifier, service area number, target time period, minimum refueling power, allowed refueling time and task power requirement, and writes the power result record into the task power requirement set.

[0044] In this embodiment: the task demand power set stores the task demand power according to the task identifier. When subsequent steps need to read the task demand power corresponding to a certain vehicle refueling task, the system uses the task identifier of the vehicle refueling task as the retrieval field to read the power result record with the same task identifier in the task demand power set.

[0045] It should be noted that if a vehicle refueling task has been written into the abnormal refueling task record, the power result record corresponding to that vehicle refueling task will not be generated in the task demand power set. When mapping the power sharing group later, only the vehicle refueling tasks that already have the corresponding task demand power will be used, so as to ensure that the subsequent mapping and power accumulation process can obtain a clear power input.

[0046] In this embodiment, through the above processing, data from different sources such as historical charging orders from service areas, vehicle passage records on intercity highways, and service area equipment ledger data can be organized into consistent vehicle charging demand information, service area power connection information, vehicle charging task sets, and task demand power sets. By using service area numbers, target time periods, task identifiers, and unit conversion rules, it is ensured that each task demand power can correspond to a specific vehicle charging task. For example, in existing highway service areas, if some original orders record the dwell time in minutes and some predicted data record the dwell time in hours, this embodiment can first unify the allowed charging time to hours before calculating the task demand power. At the same time, data with missing fields or non-compliant values ​​are written into abnormal charging demand records or abnormal charging task records, thereby avoiding inaccurate input of subsequent task group mapping sets and shared group power results due to inconsistent time units, inconsistent service area numbers, or invalid charging data entering the calculation process.

[0047] Example 3 Please see Figure 2 Specifically, step S3 includes: S31. Based on the correspondence between charging guns and power cabinets, all charging guns corresponding to the same power cabinet are divided into a power sharing group. Specifically: Based on the application scenario of Embodiment 1 and the service area power connection information formed in Embodiment 2, the system reads the correspondence between all charging guns and power cabinets in the same target service area. Each correspondence between charging guns and power cabinets includes a charging gun number and a power cabinet number. The system uses the power cabinet number as a grouping field, groups all charging gun numbers with the same power cabinet number into the same group, and determines the group as a power sharing group.

[0048] During data processing: The method for determining the same power cabinet is that the power cabinet numbers corresponding to the two charging guns in the service area equipment ledger data are the same. If the power cabinet numbers corresponding to the two charging guns are the same, the system determines that the two charging guns are powered by the same power cabinet and writes the two charging guns into the same power sharing group.

[0049] It should be noted that each power sharing group uses both the service area number and the power cabinet number as its group identifier. The group identifier is used to distinguish power cabinets with the same number in different service areas. The data stored in each power sharing group includes the group identifier, service area number, power cabinet number, the rated output power of the power cabinet corresponding to that power cabinet number, and all the charging gun numbers corresponding to that power cabinet number.

[0050] In this embodiment: if a charging gun number does not have a corresponding power cabinet number in the service area equipment ledger data, the system writes the charging gun number into the equipment relationship verification record, but does not write the charging gun number into the power sharing group used for subsequent mapping calculation; if a power cabinet number does not correspond to any charging gun number, the system retains the ledger record of the power cabinet number, but does not generate a power sharing group for undertaking vehicle recharging tasks based on the power cabinet number.

[0051] S32. Write all power sharing groups into the power sharing group set according to the corresponding target service area. The power sharing group is used to represent the charging gun combination that shares the rated output power of the same power cabinet. The power sharing group set is used to represent the set result of all power sharing groups in each target service area. Specifically: After generating each power sharing group, the system reads the service area number of that power sharing group and writes all power sharing groups with the same service area number into the same power sharing group set, so that each power sharing group set corresponds to all power sharing groups within a target service area that can be used to undertake power replenishment tasks.

[0052] During data processing: The power sharing group set uses the service area number as the set index. Each time the system generates a power sharing group, it reads the service area number of the power sharing group. If a power sharing group set with the same service area number already exists, the power sharing group is written into the existing power sharing group set. If a power sharing group set with the same service area number does not exist, a new power sharing group set is created and written into the power sharing group.

[0053] It should be noted that a power sharing group refers to a power connection structure in which the rated output power of the same power cabinet is shared by multiple charging guns. Therefore, the service capacity is not calculated directly based on the rated output power of all charging guns or all power cabinets in the service area. Instead, the power capacity is calculated separately for each power sharing group in order to identify the local power limitations caused by the power supply from the same power cabinet.

[0054] Step S3 further includes: S33. Within the same target service area and the same target time period, arrange the vehicle refueling tasks in the vehicle refueling task set from largest to smallest according to the corresponding task power demand value to obtain the task sorting result. Then, arrange the power sharing groups in the corresponding target service area according to the record order of the corresponding power cabinet in the service area equipment ledger data to obtain the sharing group sorting result. Specifically: The system reads the vehicle refueling task set and task power demand set formed in Example 2, and selects all vehicle refueling tasks with the same service area number, start time and end time as filtering fields, thereby determining the task objects that need to participate in this mapping within the same target service area and the same target time period.

[0055] During data processing: The system uses the task identifier of each vehicle refueling task as the retrieval field, reads the task demand power of tasks with the same task identifier from the task demand power set, and sorts all vehicle refueling tasks participating in the mapping according to the value of the task demand power from largest to smallest; when the value of the task demand power of two or more vehicle refueling tasks is the same, the system arranges them according to the generation order of the task identifier in the system to obtain a unique task sorting result.

[0056] Specifically: The system reads the power sharing group set corresponding to the target service area, reads the power cabinet number corresponding to each power sharing group, queries the record order of the power cabinet number in the service area equipment ledger data, and arranges all power sharing groups according to the record order to obtain the sharing group sorting result.

[0057] It should be noted that the recording order can be based on the equipment serial number in the service area equipment ledger data. If the service area equipment ledger data does not have an equipment serial number, the character order of the power cabinet number should be used as the sorting basis. The above sorting basis remains unchanged in the same batch of calculations so that the same input data can obtain the same shared group sorting result.

[0058] S34. Initialize the total power already received by each power sharing group to zero. Select vehicle refueling tasks in sequence according to the task sorting results. Map the selected vehicle refueling tasks to the power sharing group with the lowest total power already received. If the total power already received by two or more power sharing groups is the same, map the selected vehicle refueling tasks to the power sharing group ranked first in the sharing group sorting results. After each mapping, the task demand power corresponding to the mapped vehicle refueling task is accumulated to the total power already received by the corresponding power sharing group. The task group mapping set is formed by all mapping records. The total power already received is used to represent the accumulated result of the task demand power corresponding to all vehicle refueling tasks mapped by the corresponding power sharing group. Specifically: Before the mapping begins, the system establishes a power receiving record for each power sharing group within the corresponding target service area, and writes the total power received in the power receiving record to zero. The zero indicates that the corresponding power sharing group has not yet received any task power demand before any vehicle refueling task has been assigned.

[0059] During data processing: The system reads vehicle refueling tasks one by one from front to back according to the task sorting results. For each vehicle refueling task read, the total power already received by all power sharing groups is read, and the vehicle refueling task is assigned to the power sharing group with the lowest total power received value. The method for determining the lowest value is to select the item with the smallest value among the total power received by all power sharing groups as the target item, and the corresponding power sharing group is the mapping object for this time.

[0060] It should be noted that when the total power received by two or more power sharing groups is the same, the system does not select randomly, but reads the sorting result of the sharing groups and uses the power sharing group ranked first among the two or more power sharing groups as the mapping object for this time; the method for determining that the values ​​are the same is that the total power received by the two or more power sharing groups has the same stored value in the same kilowatt unit.

[0061] Specifically: After the system completes a mapping, it generates a mapping record. The mapping record includes the task identifier, service area number, target time period, group identifier of the mapped power sharing group, corresponding task power requirement, total power received before mapping, and total power received after mapping. The total power received after mapping is equal to the total power received before mapping plus the task power requirement corresponding to the vehicle refueling task mapped this time.

[0062] In this embodiment: the above mapping and accumulation process is performed on all vehicle refueling tasks in the task sorting results until each vehicle refueling task with corresponding task power requirement forms a mapping record, and then all mapping records are written into the task group mapping set; the subsequent steps can determine which vehicle refueling tasks each power sharing group has undertaken in the corresponding target time period and how much task power requirement it has undertaken based on the task group mapping set.

[0063] In this embodiment, through the above processing, the correspondence between charging guns and power cabinets in the service area power connection information can be converted into a set of power sharing groups that can be directly used for task allocation. Within the same target service area and the same target time period, a task sorting result is formed according to the power required for the task. Then, a definite task group mapping set is formed according to the total power received and the sharing group sorting result. For example, in an existing highway service area, when multiple charging guns are connected under the same power cabinet, this embodiment can first confirm that these charging guns belong to the same power sharing group, and then allocate the vehicle charging tasks with more concentrated power demand to the power sharing groups with lower total power received. This ensures that each vehicle charging task has a clear sorting basis and mapping record for which power sharing group it is assigned to, avoiding the inability to trace the power receiving source of a certain power sharing group later.

[0064] Example 4 Please see Figure 2 Specifically, step S4 includes: S41. Based on the task group mapping set, determine all vehicle refueling tasks undertaken by each power sharing group within the corresponding target time period. Specifically: Based on the task group mapping set formed in Example 3, the system reads the service area number, target time period, power sharing group identifier, and vehicle refueling task identifier from each mapping record, and groups the mapping records in the task group mapping set using the service area number, target time period, and group identifier as filtering fields.

[0065] During data processing: When two mapping records have the same service area number, the same start time of the target time period, the same end time, and the same group identifier, the system determines that the two mapping records belong to the same power sharing group and are accepted records in the same target time period, and the vehicle refueling tasks corresponding to the two mapping records are included in the same accepted task list.

[0066] It should be noted that each task list includes at least the service area number, target time period, group identifier, and all task identifiers under that group identifier. The system will then read the corresponding task power requirement from the task power requirement set using the task identifier, thereby avoiding the need to judge the power sharing group's acceptance status solely based on the number of tasks.

[0067] S42. The power requirements of all vehicle refueling tasks undertaken by the same power sharing group within the same target time period are summed up to obtain the power sharing group undertaking power result of the corresponding power sharing group. The power sharing group undertaking power result is used to represent the total power required by the corresponding power sharing group to undertake all vehicle refueling tasks within the corresponding target time period. Specifically: For each task list, the system reads the task identifier sequentially, uses the task identifier as the search field, reads the task power requirements with the same task identifier from the task power requirement set, and then adds up all the read task power requirements in kilowatts.

[0068] During data processing: if a task identifier can be uniquely matched with the required power in the task power demand set, the system will include the required power of the task in the power accumulation value of the corresponding power sharing group; if a task identifier does not have a corresponding required power, the system will write the task identifier into the power result verification record and will not include the vehicle refueling task corresponding to the task identifier in the current power accumulation.

[0069] It should be noted that when a power sharing group does not undertake any vehicle refueling tasks within the corresponding target time period, the system determines the power sharing group's power undertaking result as zero; when there is a task undertaking list, the system determines the cumulative value of the power demand of all valid tasks in the task undertaking list as the corresponding power sharing group's power undertaking result.

[0070] Step S4 further includes: S43. Determine whether the power received by each power sharing group meets the power constraint that it does not exceed the rated output power of the corresponding power cabinet, and determine the power sharing group that does not meet the power constraint as the topology bottleneck group. The power constraint is used to represent the constraint condition that the power received by the corresponding power sharing group does not exceed the rated output power of the corresponding power cabinet. Specifically: The system reads the group identifier of each power sharing group, and according to the power cabinet number in the group identifier, reads the rated output power of the corresponding power cabinet from the power connection information of the service area, and then compares the rated output power of the power cabinet with the power received by the corresponding sharing group in kilowatts.

[0071] During data processing: if the power received by the corresponding shared group does not exceed the rated output power of the corresponding power cabinet, the system writes the constraint judgment result of the power shared group as satisfying the power constraint; if the power received by the corresponding shared group does not meet the condition of not exceeding the rated output power of the corresponding power cabinet, the system writes the constraint judgment result of the power shared group as not satisfying the power constraint, and identifies the power shared group as the topology bottleneck group.

[0072] It should be noted that the topology bottleneck group is not determined based on the total power of the service area, but rather based on the constraint judgment result between the power received by the shared group corresponding to a single power sharing group and the rated output power of the power cabinet corresponding to that power sharing group. This allows for the identification of local power limitations formed when multiple charging guns share the output power under the same power cabinet.

[0073] S44. The non-negative difference obtained by subtracting the rated output power of the corresponding power cabinet from the shared group power result of each topology bottleneck group is determined as the bottleneck power gap result. A topology bottleneck group set is formed from all topology bottleneck groups, and a bottleneck power gap set is formed from all bottleneck power gap results. Specifically: The system only calculates the bottleneck power gap result for power sharing groups that have been identified as topology bottleneck groups. During the calculation, it reads the power receiving result of the sharing group corresponding to the topology bottleneck group and the rated output power of the corresponding power cabinet, and writes the kilowatt value obtained by subtracting the latter from the former as the bottleneck power gap result of the topology bottleneck group.

[0074] During data processing: Each bottleneck power gap result is associated with a topology bottleneck group. The gap record generated by the system includes at least the service area number, target time period, group identifier, power cabinet number, power received by the shared group, rated output power of the power cabinet, and bottleneck power gap result.

[0075] It should be noted that the system writes all topology bottleneck groups into the topology bottleneck group set according to the service area number and the target time period, and writes all gap records into the bottleneck power gap set according to the same service area number and the same target time period, so that subsequent steps can directly read the power sharing group of the bottleneck in a certain target service area within a certain target time period and the power gap value corresponding to each topology bottleneck group.

[0076] Step S5 includes: S51. For power sharing groups that belong to the topology bottleneck group set, the rated output power of the corresponding power cabinet is determined as the effective power receiving result of the sharing group. For power sharing groups that do not belong to the topology bottleneck group set, the corresponding power receiving result of the sharing group is determined as the effective power receiving result of the sharing group. The cumulative value of the effective power receiving results of all sharing groups within the same target service area and the same target time period is determined as the topology effective service capability result. The topology effective service capability result is used to represent the actual power receiving capacity of the corresponding target service area after being limited by the rated output power of the power cabinet within the corresponding target time period. Specifically: Based on the topology bottleneck group set and shared group power carrying results formed in Example 4, the system reads all power sharing groups in the corresponding target service area one by one, and uses the group identifier of each power sharing group as the search field to search in the topology bottleneck group set whether there are topology bottleneck groups with the same group identifier.

[0077] During data processing: If there is a topology bottleneck group in the topology bottleneck group set that has the same identifier as the current power sharing group, the system determines that the current power sharing group belongs to the topology bottleneck group set and reads the rated output power of the power cabinet corresponding to the power sharing group as the effective power received by the power sharing group.

[0078] It should be noted that the rated output power of the power cabinet is used as the effective power capacity of the power sharing group that belongs to the topology bottleneck group set because the power capacity of the power sharing group corresponding to this power sharing group no longer meets the power constraint of not exceeding the rated output power of the corresponding power cabinet. The actual power available for undertaking the task cannot be included according to the power capacity of the power sharing group.

[0079] Specifically: If there is no topology bottleneck group with the same identifier as the current power sharing group in the topology bottleneck group set, the system determines that the current power sharing group does not belong to the topology bottleneck group set, and reads the power sharing group's share group carrying power result obtained in Example 4 as the effective power sharing group carrying power result of the power sharing group.

[0080] In this embodiment: the system generates a valid acceptance record for each power sharing group. The valid acceptance record includes at least the service area number, target time period, group identifier, power cabinet number, power acceptance result of the sharing group, rated output power of the power cabinet, determination result of whether it belongs to the topology bottleneck group set, and the valid power acceptance result of the sharing group.

[0081] Specifically: The system groups all valid service records according to the service area number, the start time and the end time of the target time period. It accumulates the valid service power results of all shared groups with the same service area number, the same start time and the same end time, and determines the accumulated value as the topology effective service capability result of the corresponding target service area in the corresponding target time period.

[0082] It should be noted that when a target service area does not have a topology bottleneck group within a target time period, the system uses the power sharing group's power undertaking result for each power sharing group within that target service area during that target time period as its respective effective power undertaking result. When a power sharing group does not undertake vehicle refueling tasks within the corresponding target time period, the power sharing group's power undertaking result for that power sharing group is zero, and the corresponding effective power undertaking result for the sharing group is also counted as zero in the topology effective service capacity result.

[0083] S52. The cumulative value of the power demand of all tasks within the same target service area and the same target time period is determined as the total power of the service area tasks. It is then determined whether the effective service capacity result of the topology is lower than the total power of the service area tasks. When the effective service capacity result of the topology is lower than the total power of the service area tasks, the corresponding target service area is determined as the capacity adjustment service area. The capacity adjustment service area, the corresponding target time period, the corresponding total power of the service area tasks, the corresponding effective service capacity result of the topology, the corresponding set of topology bottleneck groups, and the corresponding set of bottleneck power gaps are written into the charging facility design scheme. Specifically: The system reads the task demand power set formed in Example 2, groups it according to the service area number, the start time and the end time of the target time period, and accumulates all task demand power with the same service area number, the same start time and the same end time in kilowatts, and determines the accumulated value as the total service area task power of the corresponding target service area in the corresponding target time period.

[0084] During data processing: The system compares the effective service capacity result of the topology within the corresponding target service area and the corresponding target time period with the total task power of the service area after unifying it to kilowatts. If the storage value of the effective service capacity result of the topology is lower than the storage value of the total task power of the service area, the system determines that there is a capacity adjustment requirement for the target service area within the target time period.

[0085] It should be noted that the determination method for "lower than" is that, in the data records corresponding to the same service area number, the same start time, and the same end time, the kilowatt value of the effective service capacity result of the topology is lower than the kilowatt value of the total task power of the service area; if it is not determined to be lower than, the system will not write the target service area into the capacity adjustment service area in the target time period.

[0086] When the kilowatt value of the effective service capacity result of the topology is equal to or not less than the kilowatt value of the total task power of the service area, the system will not write the corresponding target service area into the capacity adjustment service area in the corresponding target time period.

[0087] Specifically: When the system determines that there is a capacity adjustment need, it identifies the target service area as the capacity adjustment service area and generates a scheme record. The scheme record includes at least the service area number of the capacity adjustment service area, the start and end times of the corresponding target time period, the total task power of the service area, the topology effective service capacity result, the group identifiers in the topology bottleneck group set, and the bottleneck power gap results in the bottleneck power gap set.

[0088] In this embodiment: the charging facility design scheme consists of one or more scheme records. Each scheme record corresponds to a facility design object in a capacity adjustment service area within a target time period. The implementers can determine the target service area that needs to be prioritized, the time range that needs to be processed, the power sharing group with bottlenecks, and the power gap value corresponding to each topology bottleneck group based on the scheme record.

[0089] It should be noted that when there are multiple bottleneck power gap results in the bottleneck power gap set corresponding to a certain capacity adjustment service area, the system writes them into the charging facility design scheme item by item according to the group identifier corresponding to each bottleneck power gap result, so that the scheme can clearly identify which power cabinet corresponds to the power sharing group that forms the local power limitation, rather than just outputting the conclusion that the overall power of the service area is insufficient. In this embodiment, the charging facility design scheme also includes a facility adjustment object corresponding to each topology bottleneck group. The facility adjustment object includes the corresponding power cabinet number, the group identifier of the corresponding power sharing group, the corresponding bottleneck power gap result, and the power configuration adjustment content. The power configuration adjustment content is used to indicate at least one of the following: adjusting the rated output power configuration of the corresponding power cabinet, reconnecting some charging guns in the corresponding power sharing group to other power cabinets, or adding an independent power cabinet to the corresponding power sharing group.

[0090] In this embodiment, through the above processing, this embodiment can calculate the shared group's power capacity result group by group based on the task group mapping set, and perform constraint judgment on the shared group's power capacity result of each power sharing group and the rated output power of the corresponding power cabinet, thereby obtaining a set of topological bottleneck groups and a set of bottleneck power gaps with specific group identifiers and power cabinet numbers. For example, in a certain target time period of a certain target service area, if the shared group's power capacity result of a power sharing group is 360 kilowatts, and the rated output power of the corresponding power cabinet is 300 kilowatts, then the power sharing group is written into the topological bottleneck group set, and the corresponding bottleneck power gap result is 60 kilowatts. This allows the implementers to directly locate which power cabinet's corresponding power sharing group does not meet the power constraint, rather than only obtaining a rough judgment on whether the overall power of the service area meets the requirements.

[0091] Example 5 For the design system of charging facilities for intercity highway networks for new energy vehicles, please refer to... Figure 3 Specifically, it includes a basic data processing module, a power replenishment task generation module, a power sharing mapping module, a topology bottleneck identification module, and a facility scheme generation module; The basic data processing module is used to collect vehicle energy replenishment demand information and service area power connection information, and form a basic data set of energy replenishment facilities. The energy replenishment task generation module is used to generate a set of vehicle energy replenishment tasks based on vehicle energy replenishment demand information, and form a set of task demand power. The power sharing mapping module is used to form a power sharing group set according to the correspondence between the charging gun and the power cabinet, and to map the vehicle charging task to the power sharing group to form a task group mapping set. The topology bottleneck identification module is used to form a shared group power carrying result based on the task group mapping set and the task demand power set, and to form a topology bottleneck group set based on the comparison result of the shared group power carrying result and the rated output power of the power cabinet. The facility scheme generation module is used to form the topology effective service capability result based on the topology bottleneck group set, and generate the charging facility design scheme based on the topology effective service capability result.

[0092] The basic data processing module sends the basic data set of the energy replenishment facility to the energy replenishment task generation module and the power sharing mapping module. The energy replenishment task generation module sends the vehicle energy replenishment task set and the task demand power set to the power sharing mapping module and the topology bottleneck identification module. The power sharing mapping module sends the task group mapping set to the topology bottleneck identification module. The topology bottleneck identification module sends the topology bottleneck group set to the facility scheme generation module.

[0093] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A design method for charging facilities on intercity highway networks for new energy vehicles, characterized in that: Includes the following steps: S1. Collect vehicle energy replenishment demand information and service area power connection information corresponding to each service area in the intercity highway network to form a basic data set of energy replenishment facilities. The vehicle energy replenishment demand information includes the target service area, target time period, minimum energy replenishment capacity and allowed energy replenishment time. The service area power connection information includes the charging gun, power cabinet, the correspondence between the charging gun and the power cabinet and the rated output power of the power cabinet. S2. Generate a set of vehicle recharge tasks based on vehicle recharge demand information, and calculate the task demand power corresponding to each vehicle recharge task in the set of vehicle recharge tasks according to the minimum recharge power and the allowed recharge time, forming a set of task demand power. S3. Based on the correspondence between charging guns and power cabinets, multiple charging guns powered by the same power cabinet are divided into power sharing groups. All power sharing groups form a power sharing group set. The vehicle charging tasks in the vehicle charging task set are mapped to the corresponding power sharing groups to form a task group mapping set. S4. Based on the task group mapping set and the task demand power set, calculate the total power of the vehicle refueling task undertaken by each power sharing group in the corresponding target time period, obtain the power undertaking result of the sharing group, and determine whether the power undertaking result of the sharing group meets the power constraint of not exceeding the rated output power of the corresponding power cabinet. When the power undertaking result of the sharing group does not meet the power constraint, the corresponding power sharing group is determined as the topology bottleneck group, and the topology bottleneck group set is formed by all the topology bottleneck groups. S5. Based on the topology bottleneck set, correct the service capacity of the corresponding target service area within the corresponding target time period, generate the topology effective service capacity result, and generate the charging facility design scheme based on the topology effective service capacity result.

2. The design method for charging facilities in intercity highway networks for new energy vehicles according to claim 1, characterized in that: Step S1 includes: S11. Read the target service area, target time period, minimum energy consumption and allowable energy consumption time corresponding to each energy consumption demand record from the intercity highway network energy consumption demand forecast data, and combine the target service area, target time period, minimum energy consumption and allowable energy consumption time corresponding to the same energy consumption demand record into a vehicle energy consumption demand information; S12. Read the charging gun, power cabinet, the correspondence between charging gun and power cabinet and the rated output power of power cabinet for each service area from the service area equipment ledger data. Combine the charging gun, power cabinet, the correspondence between charging gun and power cabinet and the rated output power of power cabinet for the same service area into service area power connection information. Then write the vehicle energy replenishment demand information with the same target service area and the same target time period and the corresponding service area power connection information into the same basic data subset. The entire basic data subset forms the basic data set of energy replenishment facilities.

3. The design method for charging facilities in intercity highway networks for new energy vehicles according to claim 2, characterized in that: Step S2 includes: S21. Convert each vehicle energy replenishment demand information into a vehicle energy replenishment task, and write the target service area, target time period, minimum energy replenishment capacity and allowed energy replenishment time from the corresponding vehicle energy replenishment demand information into the corresponding vehicle energy replenishment task. S22. All vehicle refueling tasks are grouped into a vehicle refueling task set according to the corresponding target service area and the corresponding target time period. The vehicle refueling task set is used to represent all vehicle refueling tasks that need to be completed in each target service area within each target time period.

4. The design method for charging facilities in intercity highway networks for new energy vehicles according to claim 3, characterized in that: Step S2 further includes: S23. For each vehicle refueling task, if the corresponding allowed refueling time is a positive time value, the ratio of the corresponding minimum refueling power to the corresponding allowed refueling time is determined as the task power requirement of the corresponding vehicle refueling task. S24. Write all the required power of the tasks into the task power set according to the corresponding vehicle refueling tasks. The task power set is used to represent the power result required for all vehicle refueling tasks in the vehicle refueling task set to complete the corresponding minimum refueling power within the corresponding allowed refueling time.

5. The design method for charging facilities in intercity highway networks for new energy vehicles according to claim 4, characterized in that: Step S3 includes: S31. Based on the correspondence between charging guns and power cabinets, all charging guns corresponding to the same power cabinet are divided into a power sharing group. S32. Write all power sharing groups into the power sharing group set according to the corresponding target service area. The power sharing group is used to represent the charging gun combination that shares the rated output power of the same power cabinet. The power sharing group set is used to represent the set result of all power sharing groups in each target service area.

6. The design method for charging facilities in intercity highway networks for new energy vehicles according to claim 5, characterized in that: Step S3 further includes: S33. Within the same target service area and the same target time period, arrange the vehicle refueling tasks in the vehicle refueling task set from largest to smallest according to the corresponding task power demand value to obtain the task sorting result. Then, arrange the power sharing groups in the corresponding target service area according to the record order of the corresponding power cabinet in the service area equipment ledger data to obtain the sharing group sorting result. S34. Initialize the total received power of each power sharing group to zero. Select vehicle refueling tasks in sequence according to the task sorting results. Map the selected vehicle refueling tasks to the power sharing group with the lowest total received power. If the total received power of two or more power sharing groups is the same, map the selected vehicle refueling tasks to the power sharing group ranked first in the sharing group sorting results. After each mapping, the task demand power corresponding to the mapped vehicle refueling task is added to the total received power of the corresponding power sharing group. The task group mapping set is formed by all mapping records. The total received power is used to represent the cumulative result of the task demand power corresponding to all the vehicle refueling tasks mapped in the corresponding power sharing group.

7. The design method for charging facilities in intercity highway networks for new energy vehicles according to claim 6, characterized in that: Step S4 includes: S41. Based on the task group mapping set, determine all vehicle refueling tasks undertaken by each power sharing group within the corresponding target time period. S42. The power requirements of all vehicle refueling tasks undertaken by the same power sharing group within the same target time period are summed to obtain the power sharing group undertaking power result of the corresponding power sharing group. The power sharing group undertaking power result is used to represent the total power required by the corresponding power sharing group to undertake all vehicle refueling tasks within the corresponding target time period.

8. The design method for charging facilities in intercity highway networks for new energy vehicles according to claim 7, characterized in that: Step S4 further includes: S43. Determine whether the power received by each power sharing group meets the power constraint that it does not exceed the rated output power of the corresponding power cabinet, and determine the power sharing group that does not meet the power constraint as the topology bottleneck group. The power constraint is used to represent the constraint condition that the power received by the corresponding power sharing group does not exceed the rated output power of the corresponding power cabinet. S44. The non-negative difference obtained by subtracting the rated output power of the corresponding power cabinet from the shared group power result of each topology bottleneck group is determined as the bottleneck power gap result. A topology bottleneck group set is formed from all topology bottleneck groups, and a bottleneck power gap set is formed from all bottleneck power gap results.

9. The design method for charging facilities in intercity highway networks for new energy vehicles according to claim 8, characterized in that: Step S5 includes: S51. For power sharing groups that belong to the topology bottleneck group set, the rated output power of the corresponding power cabinet is determined as the effective power receiving result of the sharing group. For power sharing groups that do not belong to the topology bottleneck group set, the corresponding power receiving result of the sharing group is determined as the effective power receiving result of the sharing group. The cumulative value of the effective power receiving results of all sharing groups within the same target service area and the same target time period is determined as the topology effective service capability result. The topology effective service capability result is used to represent the actual power receiving capacity of the corresponding target service area after being limited by the rated output power of the power cabinet within the corresponding target time period. S52. The cumulative value of the power demand of all tasks within the same target service area and the same target time period is determined as the total power of the service area tasks. It is then determined whether the effective service capacity result of the topology is lower than the total power of the service area tasks. When the effective service capacity result of the topology is lower than the total power of the service area tasks, the corresponding target service area is determined as the capacity adjustment service area. The capacity adjustment service area, the corresponding target time period, the corresponding total power of the service area tasks, the corresponding effective service capacity result of the topology, the corresponding set of topology bottleneck groups, and the corresponding set of bottleneck power gaps are written into the charging facility design scheme.

10. A design system for charging facilities in intercity highway networks for new energy vehicles, based on the design method for charging facilities in intercity highway networks for new energy vehicles according to any one of claims 1 to 9, characterized in that: It includes a basic data processing module, a power replenishment task generation module, a power sharing mapping module, a topology bottleneck identification module, and a facility scheme generation module; The basic data processing module is used to collect vehicle energy replenishment demand information and service area power connection information, and form a basic data set of energy replenishment facilities. The energy replenishment task generation module is used to generate a set of vehicle energy replenishment tasks based on vehicle energy replenishment demand information, and form a set of task demand power. The power sharing mapping module is used to form a power sharing group set according to the correspondence between the charging gun and the power cabinet, and to map the vehicle charging task to the power sharing group to form a task group mapping set. The topology bottleneck identification module is used to form a shared group power carrying result based on the task group mapping set and the task demand power set, and to form a topology bottleneck group set based on the comparison result of the shared group power carrying result and the rated output power of the power cabinet. The facility scheme generation module is used to form the topology effective service capability result based on the topology bottleneck group set, and generate the charging facility design scheme based on the topology effective service capability result.

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