Resource allocation method, device and system of transformer area power distribution network and medium

Abstract

The invention relates to the technical field of power distribution networks, and provides a resource allocation method, device and system for a transformer area power distribution network and a medium. According to the implementation scheme, power supply mode configuration parameters are determined based on load parameters of all charging piles and the level of a to-be-configured area; determining a target transformer based on the type of the to-be-configured area, and determining distribution transformer configuration parameters based on the target transformer and the to-be-configured capacity of the target transformer; determining a target low-voltage line based on the level of the to-be-configured area and the type of the to-be-configured area, and determining low-voltage line configuration parameters based on the target low-voltage line and the line parameters of the target low-voltage line; determining branch box configuration parameters based on the number of the charging piles and the type of the to-be-configured area; and generating a resource configuration instruction according to the power supply mode configuration parameter, the distribution transformer configuration parameter, the low-voltage line configuration parameter and the branch box configuration parameter. According to the embodiment of the invention, the efficiency and reliability of power distribution network resource configuration can be improved.

Description

Technical Field

[0001] This invention relates to the field of power distribution network technology, and in particular to a resource allocation method, apparatus, system and medium for a distribution network in a transformer substation. Background Technology

[0002] Depending on the construction scenario and electricity consumption scale, the power distribution network needs to make reasonable allocations of resources such as power supply methods, distribution transformers, low-voltage lines and distribution equipment to ensure power supply reliability and safe and stable system operation.

[0003] However, in existing technologies, the allocation of power distribution network resources mainly relies on manual experience for planning and equipment selection. This requires comprehensive consideration of multiple factors such as regional environment, power quality requirements, and load distribution characteristics, resulting in a large amount of calculation and a cumbersome process. At the same time, manual analysis and judgment are easily affected by fluctuations in personnel skill levels, leading to long configuration cycles, a large amount of repetitive work, and difficulty in quickly responding to project deployment needs. Especially in scenarios with dense deployment of charging facilities, the efficiency and reliability of traditional configuration methods are insufficient to meet the requirements of rapid construction of new energy charging infrastructure.

[0004] Therefore, how to improve the efficiency of power distribution network resource allocation, reduce human intervention, and improve the reliability of planning decisions has become an urgent problem to be solved. Summary of the Invention

[0005] This invention provides a resource allocation method, apparatus, system, and medium for a distribution network in a transformer substation, which can solve at least one of the above-mentioned technical problems.

[0006] In a first aspect, embodiments of the present invention provide a resource allocation method for a distribution network in a transformer substation, comprising: In response to a resource configuration request from a distribution network resource configuration terminal, the resource configuration request includes the level and type of the area to be configured, and the load parameters of each charging pile in the charging facility group in the area to be configured; Based on the load parameters of each charging pile and the level of the area to be configured, the power supply configuration parameters are determined; Based on the type of the area to be configured, the target transformer is determined, and based on the target transformer and the capacity to be configured of the target transformer, the configuration parameters of the distribution transformer are determined. Based on the level and type of the area to be configured, the target low-voltage line is determined, and based on the target low-voltage line and its line parameters, the low-voltage line configuration parameters are determined. Based on the number of each charging pile and the type of the area to be configured, determine the branch box configuration parameters; Based on the power supply configuration parameters, the distribution transformer configuration parameters, the low-voltage line configuration parameters, and the branch box configuration parameters, a resource configuration instruction is generated so that the distribution network resource configuration terminal can perform resource configuration according to the resource configuration instruction.

[0007] Secondly, embodiments of the present invention provide a resource allocation device for a distribution network, comprising: The request response module is used to respond to the resource configuration request of the distribution network resource configuration terminal, wherein the resource configuration request includes the level and type of the area to be configured, and the load parameters of each charging pile in the charging facility group in the area to be configured; The power supply configuration module is used to determine the power supply configuration parameters based on the load parameters of each charging pile and the level of the area to be configured. The distribution transformer configuration module is used to determine the target transformer based on the type of the area to be configured, and to determine the distribution transformer configuration parameters based on the target transformer and the capacity to be configured of the target transformer. The low-voltage line configuration module is used to determine the target low-voltage line based on the level and type of the area to be configured, and to determine the low-voltage line configuration parameters based on the target low-voltage line and its line parameters. The branch box configuration module is used to determine the branch box configuration parameters based on the number of each charging pile and the type of the area to be configured. The resource configuration module is used to generate resource configuration instructions based on the power supply mode configuration parameters, the distribution transformer configuration parameters, the low-voltage line configuration parameters, and the branch box configuration parameters, so that the distribution network resource configuration terminal can perform resource configuration according to the resource configuration instructions.

[0008] Thirdly, embodiments of the present invention also provide a resource allocation system for a distribution network in a transformer substation, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the method described in any one of the embodiments of the present invention.

[0009] Fourthly, embodiments of the present invention also provide a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause a computer to perform the method described in any one of the embodiments of the present invention.

[0010] The present invention responds to resource configuration requests initiated by the distribution network resource configuration terminal by obtaining the level and type of the area to be configured, as well as the load parameters of each charging pile in the charging facility group within that area, carried in the resource configuration request. Based on the load parameters of each charging pile and the level of the area to be configured, power supply configuration parameters that conform to power supply capacity and engineering standards are adaptively selected to achieve virtual matching of power supply methods for different levels of power consumption scenarios. Subsequently, the appropriate distribution transformer is automatically determined according to the type of the area to be configured, and the corresponding distribution transformer configuration parameters are generated in combination with the configuration capacity of the target transformer, thereby ensuring that the power distribution capacity meets the charging load demand. At the same time, based on the level and type of the area to be configured, the appropriate low-voltage line type is selected, and the low-voltage line configuration parameters are determined in combination with the line parameters to ensure that the line selection meets the current carrying capacity and laying environment standards. On this basis, the matching branch box configuration parameters are also determined according to the number of charging piles and the type of the area to be configured to ensure the safety and stability of the branch distribution power supply structure. Finally, based on the aforementioned power supply configuration parameters, distribution transformer configuration parameters, low-voltage line configuration parameters, and branch box configuration parameters, a resource configuration instruction is generated and sent to the distribution network resource configuration terminal, which then executes the resource configuration according to the instruction. In this way, through the above adaptive resource configuration process, the distribution network resource configuration terminal can make structured and algorithmic decisions based on regional environment and load changes, avoiding problems common in traditional configuration methods such as over-construction, under-configuration, and non-compliance with environmental constraints, thereby improving the efficiency and reliability of distribution network resource configuration.

[0011] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0012] The accompanying drawings are provided for a better understanding of this solution and do not constitute a limitation of the invention. Wherein: Figure 1 This is a flowchart of a resource allocation method for a distribution network in a transformer substation according to an embodiment of the present invention; Figure 2 This is a structural block diagram of a resource allocation device for a distribution network in a transformer substation according to an embodiment of the present invention; Figure 3 This is a schematic block diagram of an electronic device used to implement the methods of embodiments of the present invention. Detailed Implementation

[0013] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These details should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope of the invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0014] Figure 1 This is a flowchart of a resource allocation method for a distribution network in a transformer substation according to an embodiment of the present invention.

[0015] like Figure 1 As shown, the resource allocation method for this distribution network area may include: S110, responding to a resource configuration request from a distribution network resource configuration terminal, wherein the resource configuration request includes the level and type of the area to be configured, and the load parameters of each charging pile in the charging facility group in the area to be configured; S120 determines the power supply configuration parameters based on the load parameters of each charging pile and the level of the area to be configured; S130, Based on the type of the area to be configured, determine the target transformer, and based on the target transformer and its capacity to be configured, determine the configuration parameters of the distribution transformer; S140, Based on the level and type of the area to be configured, determine the target low-voltage line, and based on the target low-voltage line and its line parameters, determine the low-voltage line configuration parameters; S150 determines the branch box configuration parameters based on the number of each charging pile and the type of the area to be configured; S160 generates resource configuration instructions based on power supply mode configuration parameters, distribution transformer configuration parameters, low-voltage line configuration parameters, and branch box configuration parameters, so that the distribution network resource configuration terminal can perform resource configuration according to the resource configuration instructions.

[0016] For example, the distribution network resource coordination and control center (hereinafter referred to as the control center) receives resource configuration requests sent from distribution network resource configuration terminals (e.g., regional substation controllers, park energy managers, etc.). The control center receives request messages through a preset communication interface and performs legality verification on the received requests, including but not limited to source authentication, timestamp verification, and message structure integrity checks. If the verification fails, an error response is returned to the requesting terminal. If the verification succeeds, key configuration parameters are accurately extracted from the verified resource configuration requests. Key configuration parameters mainly include: (1) the level of the area to be configured: for example, defined as Level 1 (such as the entire substation area), Level 2 (such as the downstream area of ​​a specific feeder), and Level 3 (such as a single commercial complex or residential community). (2) the type of the area to be configured: for example, urban enclosed building areas or rural open-air areas, etc. (3) the load parameters of the charging piles are a structured data list, which includes the unique identifier, rated power, peak load parameters, charging current parameters, synchronous charging coefficient or expected usage coefficient, and future expansion reserve coefficient of each charging pile in the group.

[0017] In this example, the server corresponding to the control center and the server of the distribution network resource configuration terminal can be the same server or different servers.

[0018] In this example, the preset communication interface is, for example, the Representational State Transfer (REST) ​​interface, the Message Queuing Telemetry Transport (MQTT) protocol, or a protocol based on the International Electrotechnical Commission Standard 61850 (IEC61850).

[0019] For example, resource configuration instructions refer to a set of structured instructions used to guide the distribution network resource configuration terminal in executing the deployment and parameter configuration of power supply mode, distribution transformer, low-voltage line, and branch box. For example, power supply mode: dedicated transformer power supply; distribution transformer: S13-M-1000kVA type; low-voltage line: ZC-YJV-0.6 / 1kV-4×95+1×50 cable, length 160 meters; branch box: DFW-4 type, 4 circuits.

[0020] In this example, the S13-M-1000kVA type, where S13 represents the energy-saving oil-immersed transformer series; M represents the sealed structure; and 1000 kVA (Kilovolt-Ampere, kVA) represents the rated capacity of 1000 kVA.

[0021] In this example, ZC-YJV-0.6 / 1kV-4×95+1×50 refers to a Class C flame-retardant power cable with a rated voltage of 0.6 / 1kV, insulated with cross-linked polyethylene and sheathed with polyvinyl chloride, containing 4 cores of 95mm² phase wire and neutral wire, plus 1 core of 50mm² protective wire.

[0022] For example, the system receives the power supply mode configuration parameters, distribution transformer configuration parameters, low-voltage line configuration parameters, and branch box configuration parameters obtained from the preceding steps. Based on a preset field template, the system performs field matching on the power supply mode, transformer, low-voltage line, and branch box configuration parameters to generate corresponding field value tables. These field value tables are mapped to structured configuration data, which includes power supply mode, transformer, line, and branch box fields. The structured configuration data is encapsulated to form resource configuration instructions; the encapsulation format of the resource configuration instructions is JavaScript Object Notation (JSON), Extensible Markup Language (XML), or an industrial communication protocol format. Field integrity and parameter validity checks are performed on the resource configuration instructions. If the checks pass, the resource configuration instructions are sent to the distribution network resource configuration terminal to trigger resource configuration. If the checks fail, an error message is output and a request is made to recalculate the parameters.

[0023] In this example, a preset field template is used to describe the power supply scheme, distribution transformer, low-voltage lines, and branch boxes. Specifically, the power supply method field indicates the type of power supply; the transformer field characterizes parameters such as transformer model, capacity, and voltage level. The low-voltage line field includes information such as cable type, cross-sectional area, laying method, and line length; the branch box field includes branch box type, quantity, and protection level, which is used to describe the structure of the terminal power supply node.

[0024] It should be noted that this application does not limit the method of encapsulating structured configuration data; any traditional encapsulation method can be used.

[0025] In this example, the field integrity check is used to confirm whether the resource configuration instruction contains all the key fields required by the preset field template. For example, the power supply method field, transformer field, line field, and branch box field have all been correctly generated and are not missing, and the required subfields under each field (such as transformer capacity, cable type and cross-section, number of branch boxes, etc.) all have valid values.

[0026] Parameter validity checks are used to ensure that field values ​​comply with power system configuration specifications and engineering constraints. For example, they check whether the transformer capacity matches the total load of the charging piles, whether the cross-section of the low-voltage cable meets the current carrying capacity and voltage drop requirements, whether the power supply method matches the area type, and whether the ratio of the number of branch boxes to the number of charging piles is reasonable.

[0027] According to the above implementation method, by sequentially acquiring the parameters of the area to be configured and the charging pile, determining the power supply mode, selecting the transformer, configuring the low-voltage line and matching the branch box, and finally generating the resource configuration instruction, the automated configuration of distribution network resources in the charging facility scenario is realized. This process starts from load demand, combines regional attributes and equipment capacity constraints, and forms a complete structured configuration solution, thereby reducing manual calculation and selection configuration processes, improving the efficiency and accuracy of distribution design, avoiding configuration errors and resource redundancy, and improving the efficiency and reliability of distribution network resource configuration.

[0028] In one implementation, power supply configuration parameters are determined based on the load parameters of each charging pile and the level of the area to be configured, including: determining the total load of the charging facility group based on the load of each charging pile; if the total load of the charging facility group is greater than a preset load threshold and the level of the area to be configured is the first level, then the power supply configuration parameters are determined based on the dedicated transformer power supply method; if the total load of the charging facility group is less than or equal to the preset load threshold and the level of the area to be configured is the second level, then the power supply configuration parameters are determined based on the public transformer power supply method.

[0029] For example, the formula for calculating the total load of a group of charging facilities is: In the formula, This represents the total load of the charging facility group; N represents the total number of charging piles. This indicates the rated power of charging pile i; This represents the synchronous charging coefficient corresponding to charging pile i (for example, a value of 0.7).

[0030] For example, suppose the number of charging stations is N, there are N=12 stations, and the rated power of each station is... ,have The synchronization coefficient corresponding to the charging pile is ,have =0.7, then substituting these parameters into the above formula, the total load of the charging facility group consisting of these charging piles can be calculated. It is 58.8 kilowatts (kW).

[0031] For example, the preset load threshold (which can be specified by regional power grid planning or expert experience) can be set according to actual needs, for example, 60kW.

[0032] For example, the first level refers to the area to be configured as the core urban area or a high-load area, which has high requirements for power supply reliability and dense load. Examples include large shopping malls, centralized charging stations, or centralized charging areas in residential communities.

[0033] For example, when the area to be configured is determined to be at the first level, a power supply method with redundancy and fast switching capabilities is given priority. For example, dedicated transformer power supply or dual power supply can ensure that power supply can still be maintained in the event of a single circuit failure.

[0034] For example, when the total load of the charging facility group is greater than the preset load threshold and the level of the area to be configured is the first level, the power supply configuration parameters at this time may include the power supply type (e.g., "dedicated transformer power supply" or "dual power supply"), whether to enable the backup power supply, the switching time limit threshold (e.g., ≤1 second), the redundancy level, and the associated main transformer and backup transformer identifiers, etc.

[0035] For example, the second level refers to areas to be configured that are ordinary residential areas or rural areas with distributed loads. These areas have relatively small loads and conventional requirements for power supply continuity. Examples include small parking lots and rural charging points.

[0036] For example, when the area to be configured is determined to be at the second level, a more economical public transformer power supply or single power supply scheme can be preferred to reduce investment costs.

[0037] For example, when the total load of the charging facility group is less than or equal to the preset load threshold and the level of the area to be configured is the second level, the power supply configuration parameters may include the power supply type (e.g., "public transformer power supply"), whether to share a public distribution transformer, the expected grid connection capacity, the power supply reliability level and the maximum allowable power outage duration (e.g., ≤4 hours), whether to enable backup power supply, the switching time limit threshold (e.g., ≤1 second), the redundancy level, and the associated main transformer and backup transformer identifiers, etc.

[0038] For example, logs can be generated, alarms can be triggered, and suggestions for manual review can be recorded for abnormal situations during the judgment process (such as missing thresholds, regional level conflicts, or exceeding the scope of specifications), ensuring project security and auditability.

[0039] According to the above implementation method, by first calculating the expected concurrent total load of the charging facility group and comparing it with a preset threshold, and combining this with the level of the area to be configured, the system automatically selects power supply methods such as dedicated transformer power supply or public transformer power supply according to predefined judgment rules, and generates power supply configuration parameters that include redundancy, switching strategies, and reliability parameters. Simultaneously, a manual review mechanism is provided for critical values ​​and conflict situations. In this way, the automation and efficiency of power distribution resource allocation decisions can be improved while ensuring grid safety and reliability.

[0040] In one implementation, a target transformer is determined based on the type of the area to be configured, and configuration parameters of the distribution transformer are determined based on the target transformer and its capacity to be configured, including: if the type of the area to be configured is an urban building area, then a dry-type transformer is determined as the target transformer; if the type of the area to be configured is a rural open-air area, then an oil-immersed transformer is determined as the target transformer; the total power of the charging facilities is determined based on the power of each charging pile in the charging facility group in the area to be configured; a first calculation result is determined based on the product of a preset charging facility simultaneity rate and the total power of the charging facilities, and a second calculation result is determined based on the product of the load rate of the target transformer, a preset power factor, and the charger's operating efficiency; the capacity to be configured of the target transformer is determined based on the ratio of the first calculation result to the second calculation result.

[0041] For example, urban building-type areas refer to electrical installation scenarios located within the city's power grid supply range and possessing enclosed or semi-enclosed building spaces. These areas are characterized by high building fire protection requirements, high electrical safety standards, and relatively limited environmental ventilation conditions. Examples include underground parking lots, indoor parking lots in commercial complexes, underground parking garages in office buildings, and underground parking garages in commercial districts.

[0042] For example, rural open-air areas refer to electrical installation scenarios located within the rural power grid's supply range and in a non-enclosed, open environment. These scenarios are characterized by good ventilation, relatively simple installation and maintenance conditions, and relatively low environmental control requirements. Examples include open-air parking areas along rural roads, open-air parking areas in rural market squares, and rural public parking spots.

[0043] For example, the target transformer refers to a distribution transformer that provides low-voltage power distribution capability to charging facilities in the area to be configured, and its type, capacity and operating conditions are determined by the type of the area to be configured, the total power of the charging equipment and its operating characteristics.

[0044] For example, the calculation process for the target transformer's configured capacity can be expressed by the following calculation expression: In the formula, This indicates the target transformer's capacity to be configured, in kVA. This represents the simultaneous charging facility rate, which can be selected according to actual needs. For example, the simultaneous charging rate of orderly charging piles can be 0.2, and the simultaneous charging rate of shared charging piles can be 0.4. This indicates the total power of the charging facilities, measured in kW. This indicates the load factor of the target transformer, for example, a value of 0.8; This represents the power factor, for example, a value of 0.92; This indicates the charger's operating efficiency, for example, a value of 0.9; This indicates the first calculation result; This indicates the second calculation result.

[0045] For example, the area to be configured is an underground parking lot in an city, containing 20 charging piles, each with a power of 7kW. Since the area to be configured, including the underground parking lot, is an urban building area, a dry-type transformer is selected as the target transformer. Then, by substituting the preset parameters, the number of charging piles, and the power of each charging pile into the aforementioned formula for calculating the target transformer's capacity, the target transformer's capacity can be calculated. Assuming the charging facility simultaneity rate is 0.7; the target transformer's load rate is 0.8; the power factor is 0.95; and the charger's efficiency is 0.95, then... Since the calculated capacity of 135.8 kVA is the theoretical capacity to be configured for the target transformer, but this specification is not available in engineering practice, the nearest upstream transformer capacity of 160 kVA is selected as the configuration capacity for the target transformer to ensure power supply safety and reliability. Therefore, a 160 kVA dry-type transformer is used as the configuration parameter for the distribution transformer.

[0046] According to the above implementation method, the target transformer is selected based on the type of the area to be configured: a dry-type transformer is selected for urban enclosed building areas, and an oil-immersed transformer is selected for rural open-air areas. Then, the total power of the charging pile group is calculated, and the required power is calculated based on a preset simultaneity rate (first calculation result); next, a capacity conversion factor is determined based on the transformer's allowable load rate, power factor, and charger efficiency (second calculation result). Finally, the required capacity of the target transformer is calculated based on the ratio of the two factors. In this way, precise matching of transformer selection and capacity can be achieved for different application scenarios.

[0047] In one implementation, a target low-voltage line is determined based on the level and type of the area to be configured, and low-voltage line configuration parameters are determined based on the target low-voltage line and its line parameters. This includes: if the level of the area to be configured is Level 1 and the type of the area to be configured is an urban building area, then a power cable line is determined as the target low-voltage line; if the level of the area to be configured is Level 2 and the type of the area to be configured is a rural open-air area, then an overhead line is determined as the target low-voltage line; the model of the target low-voltage line is determined based on its load parameters and laying parameters; and the line parameters of the target low-voltage line are determined based on its model.

[0048] It should be noted that the terms "Level 1", "Level 2", "urban building type area" and "rural open-air type area" refer to the same meanings as in the previous examples, and will not be repeated in this example.

[0049] For example, power cable lines refer to low-voltage power distribution lines that transmit electrical energy through power cables laid underground, in cable trays, trenches, or inside buildings. They are characterized by good insulation performance, high safety, strong anti-interference ability, and suitability for densely built-up urban areas.

[0050] For example, overhead lines refer to a type of line that uses poles, crossarms, and other supporting structures to erect conductors in the air for the transmission of low-voltage electricity. They are characterized by low construction costs, convenient maintenance, and suitability for rural and open-air environments.

[0051] For example, the target low-voltage line refers to the type of final low-voltage power supply line used to deliver power to the group of charging facilities, as determined by the level and type of the area to be configured, such as a power cable line or an overhead line.

[0052] For example, the model of the target low-voltage line, such as ZC-YJV-0.6 / 1kV-4×35+1×16 (representing a flame-retardant Class C cross-linked polyethylene insulated power cable, rated voltage 0.6 / 1kV, four 35mm² main phase conductors + one 16mm² protective grounding conductor), includes the following attribute information: cable type: YJV; flame retardant rating: ZC; rated voltage: 0.6 / 1kV; conductor configuration: 4 + 1 core. The target cross-sectional values ​​include: 35 mm² phase conductors; 16 mm² protective conductor.

[0053] For example, in addition to the model number, the line parameters of the target low-voltage line may also include current carrying capacity (e.g., 145 amps) and cable length (e.g., 60 meters).

[0054] For example, the low-voltage line configuration parameters are, for instance, a power cable line with a cable length of 60 meters and a model number of ZC-YJV-0.6 / 1kV-4×35+1×16.

[0055] According to the above implementation method, the appropriate low-voltage power supply line type (power cable or overhead line) is automatically selected based on the level and type of the area to be configured. Then, the line model is determined by combining the line load parameters and laying conditions, thereby determining the specific line parameters and automating the line selection and parameter configuration. This achieves automatic matching of power supply line type and specifications, avoiding problems of non-standard selection or over-configuration caused by manual identification, thus improving the intelligence and standardization level of the charging facility power distribution system planning.

[0056] In one implementation, determining the model of the target low-voltage line based on its load parameters and laying parameters includes: determining the target cable type based on the laying parameters of the target low-voltage line; determining the attribute information of the target low-voltage line based on the target cable type, a preset voltage level, and conductor core number configuration rules; determining the target current based on the load parameters of the target low-voltage line; selecting a cable cross-section value from a preset cable current carrying capacity table as the initial cable cross-section value of the target low-voltage line based on the target current; verifying the initial cable cross-section value to obtain a verification result; if the verification result is a pass, then determining the initial cable cross-section value as the target cross-section value of the target low-voltage line; and determining the model of the target low-voltage line based on its attribute information and the target cross-section value.

[0057] For example, the laying parameters include laying environment parameters, laying method parameters, and route length parameters. The laying environment parameters include: indoor, underground utility tunnel, cable tray, direct burial, overhead, etc.; the laying method parameters include: single-strand laying, bundled laying, conduit laying, etc. For example, if the area to be configured is an underground parking lot, then the laying environment is indoor cable tray laying.

[0058] For example, when the laying environment is indoors or underground, a flame-retardant power cable (target cable type) is selected; when the laying environment is outdoors or directly buried, a cross-linked polyethylene insulated cable or a steel tape armored cable (target cable type) is selected. For example, for indoor cable tray laying, the target cable type is ZC-YJV (where ZC represents flame-retardant Class C, YJ represents cross-linked polyethylene insulation, and V represents polyvinyl chloride sheath).

[0059] For example, attribute information is determined based on the target cable type, the preset voltage level (e.g., 0.6 / 1kV), and the conductor core configuration rules (e.g., four cores + one protective grounding wire in a three-phase five-wire system). For instance, if the target cable type is ZC-YJV, the voltage level is 0.6 / 1kV, and the conductor core count is 4+1, then the attribute information for this target cable type is determined as ZC-YJV-0.6 / 1kV-4+1 core structure.

[0060] For example, the load parameters of the target low-voltage line include the total power of the charging facilities (determined by the product of the power of each charging pile and the number of charging piles) and the system voltage (in this example, the voltage of a three-phase low-voltage power supply system is used, with a value of 380V). The calculation process of the target current can be expressed as: , In the formula, Indicates the target current; Indicates the calculated load; Indicates the total power of the charging facilities; This indicates the preset demand factor (preset according to actual needs, for example, a value of 0.5). Indicates system voltage; This indicates the power factor (preset according to actual needs, for example, a value of 0.85). For example, if the plan is to install 20 units on the target low-voltage line, each with a power of 7... For charging piles, by substituting these parameters, a demand factor of 0.5, and a power factor of 0.85 into the target current calculation formula, the target current can be calculated to be approximately 125A.

[0061] For example, based on the target current, the cable cross-section supporting ≥125A can be obtained by referring to the national standard GB / T16895 or the enterprise's current carrying capacity table. If, under cable tray conditions, a 35 mm² cable has a current carrying capacity of approximately 145A, then a power cable with specifications of 4×35+1×16 mm² can be selected by referring to the table, where the initial selected cable cross-section values ​​are 35 mm² and 16 mm².

[0062] For example, verifying the initial cable cross-section value includes voltage drop verification and short-circuit thermal stability verification. Specifically, voltage drop verification can be performed on the initial cable cross-section value based on the target current, the length of the target low-voltage line, a preset power factor and cable electrical parameters (reactance coefficient, resistivity coefficient), system voltage, and a preset voltage drop threshold. If, when the relevant parameters of the target low-voltage line corresponding to the initial cable cross-section value are substituted into the calculation expression for voltage drop verification, the percentage of voltage drop on the cable line of the target low-voltage line is less than or equal to the preset voltage drop threshold, then the voltage drop verification result is considered passed. Furthermore, the minimum conductor cross-section can be calculated based on the expected short-circuit current, short-circuit duration, and thermal stability coefficient, and short-circuit thermal stability verification can be performed on the initial cable cross-section value based on this minimum conductor cross-section. Specifically, if the minimum conductor cross-section is less than the cross-section threshold, then the short-circuit thermal stability verification result is considered passed.

[0063] In this example, voltage loss verification can be expressed by the following calculation expression: In the formula, This indicates the percentage of voltage loss on the cable line; Indicates the cable length of the target low-voltage line; Indicates the target current; Indicates the resistivity; Indicates the reactance coefficient; Indicates the preset power factor; This indicates the system voltage (in this example, the voltage of a three-phase low-voltage power supply system is used, and the value is 380V). This is the preset voltage drop threshold in this example.

[0064] In this example, the short-circuit thermal stability check can be expressed by the following calculation expression: In the formula, Indicates the minimum conductor cross-section; This indicates the expected short-circuit current (which can be preset based on engineering experience, for example, set to 15kA). This indicates the duration of the short circuit (which can be selected according to the low-voltage protection action time standard, or determined by the short circuit parameters provided by the power supply department. For example, a value of 0.1 seconds may be used). This represents the thermal stability coefficient (which is related to the cable material; for example, copper typically has a value of 143).

[0065] For example, if the verification passes, then 35mm² and 16mm² are the target cross-sectional values; otherwise, the cross-section is increased and re-verified.

[0066] According to the above implementation method, the cable type is first determined based on the laying environment of the low-voltage line, and the line attribute information is determined by combining the voltage level and core number rules. Then, the line current is calculated based on the load parameters, and the cable cross-section is initially selected from the cable current carrying capacity table based on the current, and the cross-section is verified. After verification, it is used as the final cross-section. Finally, the low-voltage line model is obtained by combining the line attribute information and the final cross-section. In this way, cable parameters can be screened and verified layer by layer from the actual laying conditions, load requirements and safe operation requirements, so as to achieve scientific selection and precise modeling of low-voltage line models, avoid over-design or insufficient capacity problems caused by experience-based selection, and improve the rationality, safety and economy of cable selection.

[0067] In one implementation, the branch box configuration parameters are determined based on the number of charging piles and the type of the area to be configured, including: determining the target low-voltage cable branch box based on the type of the area to be configured and a preset branch box allocation rule; calculating the number of incoming and outgoing circuits of the target low-voltage cable branch box based on the number of charging piles and the load parameters of each charging pile, thereby obtaining the number of incoming circuits and outgoing circuits of the target low-voltage cable branch box; and determining the branch box configuration parameters based on the target low-voltage cable branch box and the number of incoming and outgoing circuits of the target low-voltage cable branch box.

[0068] For example, a target low-voltage cable distribution box refers to a cable branching device used to distribute and protect multi-circuit low-voltage cables according to the installation environment of the area to be configured. For example, target low-voltage cable distribution boxes include wall-mounted low-voltage cable distribution boxes and floor-mounted low-voltage cable distribution boxes.

[0069] For example, the preset branch box allocation rule is that if the type of the area to be configured is indoor, then the wall-mounted low-voltage cable branch box is used as the target low-voltage cable branch box; if the type of the area to be configured is outdoor, then the floor-mounted low-voltage cable branch box is used as the target low-voltage cable branch box.

[0070] For example, let's take the example of configuring 20 charging piles, each with a rated power of 7kW, in an underground parking lot of an indoor residential community. Based on this, we will determine the configuration parameters of the branch boxes to be configured. First, since the area to be configured is an underground parking lot of an indoor residential community, the wall-mounted low-voltage cable branch box is selected as the target low-voltage cable branch box according to the preset branch box allocation rules. Second, we obtain the load parameters of each charging pile in the charging facility group within the area to be configured, where each charging pile has a rated power of 7kW, and there are a total of 20 charging piles. The total installed power is calculated as follows: Based on the preset demand factor of 0.5, the total computational load is determined to be... Based on a three-phase low-voltage power supply system (voltage is 380V), through the formula In the formula, This indicates that the current is being calculated; This represents the total calculated load; U represents the voltage of the three-phase low-voltage power supply. The power factor can be determined according to actual needs; for example, it is set to 0.85 in this example. Based on this, the calculated incoming current is approximately 125A. Based on the calculated current and combined with the capacity margin principle, the number of incoming circuits in the target low-voltage cable branch box is determined to be 1 circuit, and the incoming cable specification is selected as YJV-0.6 / 1kV-3×120+1×70, with a current carrying capacity of approximately 180A to meet the 125A current carrying capacity requirement and reserve an operational margin.

[0071] Furthermore, based on the "Standard for Electrical Design of Civil Buildings" (GB 51348), AC charging circuits must meet the following requirements: rated current of a single circuit ≤ 100A, number of charging piles connected to a single circuit ≤ 3 (7kW / pile), to avoid excessive load on a single circuit. Since the maximum number of charging piles connected to a single outgoing circuit is 3 (7kW / pile), the installed power of a single circuit is 3 × 7kW = 21kW; the calculated load of a single circuit is 21kW × 0.5 = 10.5kW (where 0.5 is the demand factor, which can be preset according to actual needs); based on the calculated load of a single circuit, the voltage and power factor of the three-phase low-voltage power supply, the calculated current of a single circuit is 10500 / ( (×380×0.85)≈19A (19A is much less than 100A, which meets the specifications). Therefore, the conclusion for the outgoing line selection is that the number of outgoing circuits is 20 (pile) ÷ 3 (pile / circuit) ≈ 7 circuits (rounded up to avoid overload). In summary, based on the calculated current, the outgoing cable specification is selected as YJV-0.6 / 1kV-4×10, with a current carrying capacity of approximately 60A, meeting the 19A operation requirement for a single circuit. Therefore, the number of outgoing circuits in the target low-voltage cable branch box is determined to be 7 circuits.

[0072] Finally, based on the determined number of 1 incoming circuit and 7 outgoing circuits, and combined with the structure of the wall-mounted low-voltage cable branch box, the configuration parameters of the branch box were determined to be a 1-in-7-out wall-mounted low-voltage cable branch box, and the corresponding cross-section incoming and outgoing cables were configured to meet the distributed power supply needs of 20 7kW charging piles.

[0073] According to the above implementation method, by determining the appropriate target low-voltage cable branch box based on the type of the area to be configured and in conjunction with preset branch box allocation rules, and calculating the required number of incoming and outgoing circuits for the target low-voltage cable branch box based on the number of charging piles and their load parameters, the number of incoming and outgoing circuits is obtained. Finally, the branch box configuration parameters are determined by combining the determined branch box and its circuit configuration, realizing automated matching and reasonable configuration of branch box specifications and circuit capacity. In this way, adaptive power distribution design can be achieved in different application scenarios, avoiding insufficient power supply or equipment redundancy caused by improper selection, thereby improving the system's safety, economy, and engineering deployment efficiency.

[0074] In one implementation, before responding to a resource allocation request from a distribution network resource allocation terminal, the method further includes: dividing each charging pile into groups based on a universality principle to obtain each first charging pile group; for each first charging pile group, further subdividing each charging pile in the first charging pile group based on the regional type of the area where each charging pile is located and the scenario principle corresponding to the regional type, to obtain each second charging pile group; merging the second charging pile groups under the same regional type to obtain each third charging pile group; and determining a charging facility group based on each third charging pile group.

[0075] For example, the principle of universality refers to a set of basic rules that must be followed when grouping charging piles to ensure power supply safety, ease of operation and maintenance, and consistency of load characteristics. Specifically, these include the principles of capacity constraint, spatial proximity, and power characteristic matching.

[0076] In this example, the capacity constraint principle states that the maximum theoretical load of all charging piles operating simultaneously within a group must be strictly limited by the continuous current-carrying capacity of its upstream power supply circuit (including low-voltage outgoing switches and cables) and the available capacity of the final power source (distribution transformer). The spatial proximity principle suggests that when grouping, charging piles with concentrated physical locations and high overlap in power supply paths should be grouped together. The power characteristic matching principle suggests that charging piles with the same or similar rated power levels and similar charging behavior patterns and spatiotemporal distribution characteristics should be prioritized for grouping into the same group. Specifically, the ratio of the maximum to minimum rated power of charging piles within the group should not exceed 2.0, and based on historical data, the standard deviation of the charging start time of charging piles within the group should be less than 2 hours, and the coefficient of variation of the average charging duration should be less than 0.3.

[0077] For example, the geographical types of the areas where the charging piles are located include urban enclosed building scenarios, open-air parking lot scenarios, and rural outdoor scenarios.

[0078] In this example, the scenario principles corresponding to the urban enclosed building scenario include requiring each charging pile to comply with the rigid boundaries formed by fire safety regulations. Within these rigid boundaries, charging facilities and power supply circuits are strictly prohibited from crossing different fire compartments. For example, the maximum allowable building area of ​​each underground parking garage fire compartment is usually limited to 2,000 square meters and must be physically isolated by firewalls or fireproof roller shutters, so that each charging pile is set up independently according to the fire protection unit.

[0079] In this example, the scenario principles corresponding to the open-air parking lot scenario include requiring that the real-time power load of each charging pile does not exceed the preset power threshold and that the fire prevention distance between each charging pile is not less than the preset distance threshold (e.g., 6 meters).

[0080] In this example, the scenario principles for the rural outdoor scene include requiring that the voltage drop from the transformer to the farthest charging pile not exceed 5%, the number of slow charging piles connected to a single power supply circuit should be controlled within 3 to 5, and the power supply radius must undergo strict voltage drop verification.

[0081] For example, consider a closed underground parking lot in a city where 12 charging piles are planned: 8 7kW AC piles and 4 60kW DC piles. The parking area is divided into two fire compartments (Area A and Area B). First, based on the principle of universality, a first charging pile group is formed, resulting in Area A with 6 charging piles and Area B with 6 charging piles. That is, first charging pile group A = 6 piles; first charging pile group B = 6 piles. Second, further subdivision is made based on regional type and scenario principles (second charging pile group). Since the regional type is a closed urban building scenario, the corresponding scenario principle is that charging piles cannot cross fire compartments. Area A and Area B comply with the rules and are therefore not dismantled. Finally, the various second charging pile groups under the same regional type are merged (third charging pile group). Area A: 4 7kW + 2 60kW; Area B: 4 7kW + 2 60kW. To ensure consistent power characteristics among the third charging pile groups: Area A is designated as the first third charging pile group, numbered G1, with 4 units, each with a power of 7kW; Area A is also designated as the second third charging pile group, numbered G2, with 2 units, each with a power of 60kW; Area B is designated as the first third charging pile group, numbered G3, with 4 units, each with a power of 7kW; Area B is also designated as the second third charging pile group, numbered G4, with 2 units, each with a power of 60kW. The resulting charging facility groups include the third charging pile groups numbered G1, G2, G3, and G4.

[0082] According to the above implementation method, charging piles are first initially grouped based on the principle of universality; then, the initial groupings are refined according to the engineering constraints corresponding to different scenarios; finally, the refined groups under the same scenario are merged to form charging facility groups that meet the regional characteristics and power supply planning requirements. In this way, through hierarchical and principle-based grouping, it can be ensured that the charging pile groupings not only meet engineering constraints such as power supply load safety and fire protection specifications, but also take into account spatial proximity and power characteristic matching, thereby making the subsequent selection of power distribution equipment and line configuration more efficient and reliable, and ensuring the safety, stability and scalability of the entire charging facility system.

[0083] Figure 2 This is a structural block diagram of a resource allocation device for a distribution network in a transformer substation according to an embodiment of the present invention.

[0084] like Figure 2 As shown, the resource allocation device for this distribution network area may include: The request response module 510 is used to respond to the resource configuration request of the distribution network resource configuration terminal, wherein the resource configuration request includes the level and type of the area to be configured, and the load parameters of each charging pile in the charging facility group in the area to be configured. The power supply configuration module 520 is used to determine the power supply configuration parameters based on the load parameters of each charging pile and the level of the area to be configured. The distribution transformer configuration module 530 is used to determine the target transformer based on the type of the area to be configured, and to determine the distribution transformer configuration parameters based on the target transformer and the capacity to be configured of the target transformer. The low-voltage line configuration module 540 is used to determine the target low-voltage line based on the level and type of the area to be configured, and to determine the low-voltage line configuration parameters based on the target low-voltage line and the line parameters of the target low-voltage line. Branch box configuration module 550 is used to determine branch box configuration parameters based on the number of each charging pile and the type of the area to be configured; The resource configuration module 560 is used to generate a resource configuration instruction based on the power supply mode configuration parameters, the distribution transformer configuration parameters, the low-voltage line configuration parameters, and the branch box configuration parameters, so that the distribution network resource configuration terminal can perform resource configuration according to the resource configuration instruction.

[0085] In one embodiment, the power supply configuration module includes: The total load determination unit is used to determine the total load of the charging facility group based on the load of each of the charging piles; A dedicated transformer power supply unit is used to determine the power supply mode configuration parameters based on the dedicated transformer power supply mode if the total load of the charging facility group is greater than a preset load threshold and the level of the area to be configured is the first level. The public transformer power supply unit is used to determine the power supply mode configuration parameters based on the public transformer power supply mode if the total load of the charging facility group is less than or equal to a preset load threshold and the level of the area to be configured is the second level.

[0086] In one embodiment, the transformer configuration module includes: A dry-type transformer unit is used to determine the dry-type transformer as the target transformer if the type of the area to be configured is an urban building area. An oil-immersed transformer unit is used to identify an oil-immersed transformer as the target transformer if the type of the area to be configured is a rural open-air area. The total power determination unit for charging facilities is used to determine the total power of the charging facilities based on the power of each charging pile in the charging facility group in the area to be configured. The calculation result determination unit is used to determine a first calculation result based on the product of a preset charging facility simultaneity rate and the total power of the charging facilities, and to determine a second calculation result based on the product of the load rate of the target transformer, a preset power factor, and the working efficiency of the charger. The capacity to be configured unit is used to determine the capacity to be configured of the target transformer based on the ratio of the first calculation result to the second calculation result.

[0087] In one embodiment, the low-voltage line configuration module includes: A power cable line unit is used to identify the power cable line as the target low-voltage line if the level of the area to be configured is the first level and the type of the area to be configured is an urban building area. An overhead line unit is used to identify the overhead line as the target low-voltage line if the level of the area to be configured is the second level and the type of the area to be configured is a rural open-air area. The model determination unit is used to determine the model of the target low-voltage line based on the load parameters and laying parameters of the target low-voltage line. The line parameter determination unit is used to determine the line parameters of the target low-voltage line based on the model of the target low-voltage line.

[0088] In one embodiment, the model determination unit includes: The target cable type determination subunit is used to determine the target cable type based on the laying parameters of the target low-voltage line; The attribute information determination subunit is used to determine the attribute information of the target low-voltage line based on the target cable type, preset voltage level and conductor core number configuration rules; The target current determination subunit is used to determine the target current based on the load parameters of the target low-voltage line; The cable cross-section value selection subunit is used to select a cable cross-section value from a preset cable current carrying capacity table as the initial cable cross-section value for the target low-voltage line based on the target current. The inspection subunit is used to inspect the initially selected cable cross-section value and obtain the verification result; The cable cross-section value determination subunit is used to determine the initially selected cable cross-section value as the target cross-section value of the target low-voltage line if the verification result is that the verification is passed. The target low-voltage line model determination subunit is used to determine the model of the target low-voltage line based on the attribute information and target cross-sectional value of the target low-voltage line.

[0089] In one embodiment, the branch box configuration module includes: The target low-voltage cable branch box unit is used to determine the target low-voltage cable branch box based on the type of the area to be configured and the preset branch box allocation rules. The incoming and outgoing circuit number calculation unit is used to calculate the number of incoming and outgoing circuits of the target low-voltage cable branch box based on the number of charging piles and the load parameters of each charging pile, so as to obtain the number of incoming circuits and the number of outgoing circuits of the target low-voltage cable branch box. The branch box configuration parameter determination unit is used to determine the branch box configuration parameters based on the target low-voltage cable branch box and the number of incoming and outgoing circuits of the target low-voltage cable branch box.

[0090] In one embodiment, prior to the request-response module, the apparatus further includes: The group division module is used to divide the various charging piles into groups based on the principle of universality, so as to obtain the first charging pile groups. The subdivision module is used to subdivide each of the first charging pile groups based on the regional type of the area where each charging pile in the first charging pile group is located and the scenario principle corresponding to the regional type, to obtain each second charging pile group. The merging module is used to merge the various second charging pile groups under the same regional type to obtain various third charging pile groups; The charging facility group determination module is used to determine the charging facility group based on each of the third charging pile groups.

[0091] The specific functions and examples of each module and submodule of the system in this embodiment of the invention can be found in the relevant descriptions of the corresponding steps in the above method embodiments, and will not be repeated here.

[0092] The acquisition, storage, and application of user personal information involved in the technical solution of this invention all comply with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0093] This invention also provides a resource allocation system for a distribution network in a transformer substation, comprising: At least one processor; and a memory communicatively connected to said at least one processor; The memory stores instructions that can be executed by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the method described in any one of the embodiments of the present invention.

[0094] The beneficial effects of the resource allocation system of the distribution network in this embodiment of the invention are equivalent to the beneficial effects of the resource allocation method of the distribution network described above, and will not be repeated here.

[0095] This invention also provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause a computer to perform the method described in any one of the embodiments of this invention.

[0096] The beneficial effects of the storage medium of the present invention are equivalent to the beneficial effects of the resource allocation method of the above-mentioned distribution network, and will not be repeated here.

[0097] Figure 3 A schematic block diagram of an example electronic device 800 that can be used to implement embodiments of the present invention is shown. Electronic device 800 is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic device 800 may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0098] like Figure 3 As shown, the electronic device 800 includes a computing unit 801, which can perform various appropriate actions and processes based on a computer program stored in a read-only memory (ROM) 802 or a computer program loaded from a storage unit 808 into a random access memory (RAM) 803. The RAM 803 may also store various programs and data required for the operation of the electronic device 800. The computing unit 801, ROM 802, and RAM 803 are interconnected via a bus 804. An input / output (I / O) interface 805 is also connected to the bus 804.

[0099] Multiple components in electronic device 800 are connected to I / O interface 805, including: input unit 806, such as keyboard, mouse, etc.; output unit 807, such as various types of displays, speakers, etc.; storage unit 808, such as disk, optical disk, etc.; and communication unit 809, such as network card, modem, wireless transceiver, etc. Communication unit 809 allows electronic device 800 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0100] The computing unit 801 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the computing unit 801 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 801 performs the various methods and processes described above, such as a resource allocation method for a distribution network. For example, in some embodiments, the resource allocation method for a distribution network can be implemented as a computer software program tangibly contained in a machine-readable medium, such as storage unit 808. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 800 via ROM 802 and / or communication unit 809. When the computer program is loaded into RAM 803 and executed by the computing unit 801, one or more steps of the resource allocation method for a distribution network described above can be performed. Alternatively, in other embodiments, the computing unit 801 may be configured to perform a resource allocation method for the distribution network of the substation by any other suitable means (e.g., by means of firmware).

[0101] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0102] The program code used to implement the methods of the present invention can be written in any combination of one or more programming languages. This program code can be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code can be executed entirely on the machine, partially on the machine, as a standalone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0103] In the context of this invention, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0104] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0105] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0106] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact via communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other. Servers can be cloud servers, servers in distributed systems, or servers incorporating blockchain technology.

[0107] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0108] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the principles of this invention should be included within the scope of protection of this invention.

Claims

1. A resource configuration method of a transformer area power distribution network, characterized by, The method comprises: determining, in response to a resource configuration request of a power distribution network resource configuration terminal, a power supply mode configuration parameter based on a level and a type of a region to be configured and load parameters of each charging pile in a charging facility group in the region to be configured; determining, based on the load parameters of each charging pile and the level of the region to be configured, a power distribution transformer configuration parameter based on a target transformer and a to-be-configured capacity of the target transformer; determining, based on the type of the region to be configured, a target low-voltage line, and determining a low-voltage line configuration parameter based on the target low-voltage line and line parameters of the target low-voltage line; determining, based on the number of each charging pile and the type of the region to be configured, a branch box configuration parameter; generating a resource configuration instruction according to the power supply mode configuration parameter, the power distribution transformer configuration parameter, the low-voltage line configuration parameter and the branch box configuration parameter, so that the power distribution network resource configuration terminal performs resource configuration according to the resource configuration instruction. The method comprises:

2. The method of claim 1, wherein, determining the total load of the charging facility group based on the load of each charging pile; if the total load of the charging facility group is greater than a preset load threshold and the level of the region to be configured is a first level, determining the power supply mode configuration parameter based on a dedicated transformer power supply mode; if the total load of the charging facility group is less than or equal to a preset load threshold and the level of the region to be configured is a second level, determining the power supply mode configuration parameter based on a public transformer power supply mode. The method comprises:

3. The method of claim 1, wherein, if the type of the region to be configured is a city building type region, determining a dry-type transformer as the target transformer; if the type of the region to be configured is a rural open-air type region, determining an oil-immersed transformer as the target transformer; determining a total charging facility power based on the power of each charging pile in the charging facility group in the region to be configured; determining a first calculation result based on the product of a preset charging facility simultaneous rate and the total charging facility power, and determining a second calculation result based on the product of a load rate of the target transformer, a preset power factor and a charging machine working efficiency; determining the to-be-configured capacity of the target transformer based on the ratio of the first calculation result to the second calculation result. The method comprises:

4. The method of claim 1, wherein, if the level of the region to be configured is a first level and the type of the region to be configured is a city building type region, determining a power cable line as the target low-voltage line; ​ If the level of the to-be-configured area is a second level and the type of the to-be-configured area is a rural open area, the overhead line is determined as the target low-voltage line; determine the type of the target low-voltage line based on the load parameter and the laying parameter of the target low-voltage line; determine the line parameter of the target low-voltage line based on the type of the target low-voltage line.

5. The method of claim 4, wherein, The method further comprises: determine the target cable type based on the laying parameter of the target low-voltage line; determine the attribute information of the target low-voltage line based on the target cable type, a preset voltage level and a conductor core number configuration rule; determine the target current based on the load parameter of the target low-voltage line; select a cable cross-sectional value from a preset cable ampacity table as a preliminary selected cable cross-sectional value of the target low-voltage line based on the target current; verify the preliminary selected cable cross-sectional value to obtain a verification result; if the verification result is a verification pass, determine the preliminary selected cable cross-sectional value as a target cross-sectional value of the target low-voltage line; determine the type of the target low-voltage line based on the attribute information and the target cross-sectional value of the target low-voltage line.

6. The method of claim 1, wherein, The method further comprises: determine the target low-voltage cable branch box based on the type of the to-be-configured area and a preset branch box distribution rule; calculate the number of incoming and outgoing line loops of the target low-voltage cable branch box based on the number of the charging piles and the load parameter of each charging pile to obtain the number of incoming line loops and the number of outgoing line loops of the target low-voltage cable branch box; determine the branch box configuration parameter based on the target low-voltage cable branch box and the number of incoming line loops and the number of outgoing line loops of the target low-voltage cable branch box.

7. The method of claim 1, wherein, The method further comprises: grouping divide each charging pile based on a generality principle to obtain each first charging pile group; subdivide each charging pile in the first charging pile group based on the regional type of the area where each charging pile in the first charging pile group is located and the scenario principle corresponding to the regional type to obtain each second charging pile group; merge each second charging pile group under the same regional type to obtain each third charging pile group; determine the charging facility group based on each third charging pile group.

8. A resource configuration device of a transformer area power distribution network, characterized by, The method further comprises: a request response module configured to respond to a resource configuration request of a power distribution network resource configuration terminal, wherein the resource configuration request comprises the level and the type of a to-be-configured area and the load parameter of each charging pile in a charging facility group in the to-be-configured area; a power supply mode configuration module configured to determine a power supply mode configuration parameter based on the load parameter of each charging pile and the level of the to-be-configured area; The power distribution transformer configuration module is configured to determine a target transformer based on the type of the region to be configured, and determine power distribution transformer configuration parameters based on the target transformer and the capacity of the target transformer to be configured; The low-voltage line configuration module is configured to determine a target low-voltage line based on the level of the region to be configured and the type of the region to be configured, and determine low-voltage line configuration parameters based on the target low-voltage line and the line parameters of the target low-voltage line; The branch box configuration module is configured to determine branch box configuration parameters based on the number of each charging pile and the type of the region to be configured; The resource configuration module is configured to generate resource configuration instructions according to the power supply mode configuration parameters, the power distribution transformer configuration parameters, the low-voltage line configuration parameters, and the branch box configuration parameters, so that the power distribution network resource configuration terminal performs resource configuration according to the resource configuration instructions.

9. A resource configuration system of a distribution network of a district, characterized by, Comprise: At least one processor; And a memory connected in communication with the at least one processor; Wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the method of any one of claims 1-7.

10. A non-transitory computer-readable storage medium having stored thereon computer instructions, wherein, The computer instructions are used to make the computer execute the method according to any one of claims 1-7.

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