Power distribution network feeder group-to-power supply control method and device

Abstract

The invention discloses a power distribution network feeder group-to-power supply control method and device, and the method comprises the steps: carrying out the correlation integration and analysis of the operation data of a power distribution network, obtaining the operation data of a feeder group, determining a power supply line between each feeder line segment and a power supply, determining a problem feeder based on a preset problem judgment rule, and carrying out the calculation of the problem. And analyzing all feasible operation modes of the feeder group where the problem feeder is located, and evaluating advantages and disadvantages of each feasible operation mode, thereby obtaining an optimal feasible operation mode, and obtaining a power distribution network feeder group to power supply control scheme. The power distribution network feeder group-to-power supply control scheme obtained by the power distribution network feeder group-to-power supply control method provided by the invention can be suitable for feeder group-to-power supply control of the whole power distribution network, and is not limited to automatic transfer between interconnection lines controlled by interconnection switches; the technical problem that an existing traditional power distribution network planning method cannot meet complex power distribution network transfer control requirements is solved.

Description

Technical Field

[0001] This invention relates to the field of power distribution network technology, and in particular to a power supply control method and device for a power distribution network feeder group. Background Technology

[0002] Traditional distribution network planning methods primarily model based on feeder groups. While these methods can automatically disconnect faulty segments and restore power to non-faulty segments, controlling tie switches only enables automatic power transfer between entire tie lines, resulting in poor flexibility and an inability to meet the complex power transfer control requirements of distribution networks. Therefore, ensuring the accuracy of distribution network planning schemes under the complex and ever-changing power transfer control needs is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0003] This invention provides a power transfer control method and device for a distribution network feeder group, which solves the technical problem that existing traditional distribution network planning methods cannot meet the complex power transfer control requirements of distribution networks.

[0004] In view of this, the first aspect of the present invention provides a power supply control method for a distribution network feeder group, comprising:

[0005] Acquire and integrate power distribution network operation data;

[0006] Based on the integrated distribution network operation data, the CIM file of the feeder group is parsed to obtain the feeder group operation data;

[0007] Based on the feeder group operation data, determine the available power supply lines between each feeder segment and the power supply.

[0008] Based on the pre-set problem judgment rules and the available power supply lines between each feeder segment and the power supply, the problematic feeder is identified.

[0009] Analyze all feasible operating modes of the feeder group containing the problematic feeder;

[0010] Evaluate the advantages and disadvantages of each feasible operating mode to obtain the optimal feasible operating mode;

[0011] Based on the optimal and feasible operating mode, a power supply control scheme for the distribution network feeder group is generated.

[0012] Optionally, acquiring and integrating distribution network operation data includes:

[0013] Obtain information on distribution network equipment ledgers, distribution network line operation information, distribution network line ring network point information, and distribution network single-line diagram information;

[0014] Data cleaning, normalization, and association are performed on the distribution network equipment ledger information, distribution network line operation information, distribution network line ring network point information, and distribution network single line diagram information.

[0015] Optionally, based on the distribution network operation data, the CIM file of the feeder group is parsed to obtain the feeder group operation data, including:

[0016] The CIM parsing tool is used to parse the CIM file of the feeder group in the power distribution network operation data and extract the feeder group information, which includes basic information, equipment information and connection information.

[0017] Data interfaces are used to obtain distribution transformer operation data from the power metering system and user data from the power marketing system.

[0018] The parsed feeder group information, distribution transformer operation data, and power marketing system user data are matched to the corresponding automation segments of the feeder group to form complete feeder group operation data.

[0019] Optionally, based on the feeder group operating data, the available power supply lines between each feeder segment and the power supply are determined, including:

[0020] Based on the feeder group operation data, analyze the configuration information of the automatic switch and tie switch;

[0021] Based on the configuration information of the automatic switches and tie switches, the feeder is divided into multiple feeder segments to form a main line segmentation data model;

[0022] Based on the segmented data model of the main line and the power supply constraints of the distribution network, the available power supply lines between each feeder segment and the power supply source are determined.

[0023] Optionally, based on the distribution network operation data, the CIM file of the feeder group is parsed to obtain the feeder group operation data, which also includes:

[0024] Initialize the problem judgment rule database, including establishing the rule database table structure, loading rule data, and creating indexes. The rule data includes preset problem judgment rules.

[0025] Based on the pre-defined problem judgment rules, determine the problem feeder, including:

[0026] Perform a distribution automation effective coverage judgment. If the feeder meets the distribution automation effective coverage, then jump to perform a feeder single-radial judgment. If the feeder does not meet the distribution automation effective coverage, then return to the initial problem judgment rule database.

[0027] Perform a single-radiation judgment on the feeder. If the feeder meets the single-radiation requirement, jump to the judgment of the minimum configuration requirement for feeder self-healing. If the feeder does not meet the single-radiation requirement, return to the initialization problem judgment rule database.

[0028] Perform a minimum configuration requirement check for feeder self-healing. If the feeder meets the minimum configuration requirement for feeder self-healing, proceed to perform a feeder overload check. If the feeder does not meet the minimum configuration requirement for feeder self-healing, return to the initialization problem judgment rule database.

[0029] Perform a feeder overload check. If the feeder meets the feeder overload condition, then identify the problematic feeder. If the feeder does not meet the feeder overload condition, return to the initial problem judgment rule database.

[0030] Optionally, analyze all possible operating modes of the feeder group containing the problematic feeder, including:

[0031] Calculate the load balancing degree of each feasible operating mode;

[0032] Analyze the number of non-transferable lines for each feasible operating mode;

[0033] Calculate the variance index for each feasible operating mode.

[0034] Optionally, the advantages and disadvantages of each feasible operating mode are evaluated to obtain the optimal feasible operating mode, including:

[0035] Based on the variance index of each feasible operating mode, list the priorities of each feasible operating mode;

[0036] Based on the load balancing degree, number of non-transferable lines, and variance index of each feasible operating mode, the operating effect of each feasible operating mode under different loads is obtained;

[0037] Based on the priority list of each feasible operating mode and the operating effect of each feasible operating mode under different loads, the optimal feasible operating mode is determined.

[0038] A second aspect of the present invention provides a power supply control device for a distribution network feeder group, comprising:

[0039] The data acquisition module is used to acquire and integrate power distribution network operation data.

[0040] The data parsing module is used to parse the CIM file of the feeder group based on the integrated distribution network operation data to obtain the feeder group operation data;

[0041] The power supply analysis module is used to determine the power supply lines between each feeder segment and the power supply based on the feeder group's operating data.

[0042] The feeder analysis module is used to identify problematic feeders based on preset problem judgment rules and the available power supply lines between each feeder segment and the power supply.

[0043] The operation analysis module is used to analyze all possible operating modes of the feeder group where the problematic feeder is located;

[0044] The evaluation module is used to assess the merits of each feasible operating mode and obtain the optimal feasible operating mode.

[0045] The control module is used to generate a power supply control scheme for the distribution network feeder group based on the optimal and feasible operating mode.

[0046] Optionally, the data acquisition module is specifically used for:

[0047] Obtain information on distribution network equipment ledgers, distribution network line operation information, distribution network line ring network point information, and distribution network single-line diagram information;

[0048] Data cleaning, normalization, and association are performed on the distribution network equipment ledger information, distribution network line operation information, distribution network line ring network point information, and distribution network single line diagram information.

[0049] Optionally, the data parsing module is specifically used for:

[0050] The CIM parsing tool is used to parse the CIM file of the feeder group in the power distribution network operation data and extract the feeder group information, which includes basic information, equipment information and connection information.

[0051] Data interfaces are used to obtain distribution transformer operation data from the power metering system and user data from the power marketing system.

[0052] The parsed feeder group information, distribution transformer operation data, and power marketing system user data are matched to the corresponding automation segments of the feeder group to form complete feeder group operation data.

[0053] As can be seen from the above technical solutions, the power supply control method for distribution network feeder groups provided by the present invention has the following advantages:

[0054] The power transfer control method for distribution network feeder groups provided by this invention integrates and correlates distribution network operation data, analyzes and obtains feeder group operation data, determines the available power supply lines between each feeder segment and the power supply source, then identifies the problematic feeder based on preset problem judgment rules, analyzes all feasible operating modes of the feeder group containing the problematic feeder, evaluates the advantages and disadvantages of each feasible operating mode, and thus obtains the optimal feasible operating mode, resulting in a power transfer control scheme for distribution network feeder groups. The power transfer control scheme obtained by the power transfer control method for distribution network feeder groups provided by this invention is applicable to the power transfer control of feeder groups throughout the entire distribution network, and is not limited to automatic power transfer between tie lines controlled by tie switches. It solves the technical problem that existing traditional distribution network planning methods cannot meet the complex power transfer control requirements of distribution networks. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0056] Figure 1 This is a flowchart illustrating a power supply control method for a distribution network feeder group provided in an embodiment of the present invention;

[0057] Figure 2 This is a schematic diagram of the structure of a power supply control device for a power distribution network feeder group provided in an embodiment of the present invention. Detailed Implementation

[0058] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] For easier understanding, please refer to Figure 1 This invention provides an embodiment of a power supply control method for a distribution network feeder group, comprising:

[0060] Step 101: Obtain and integrate the power distribution network operation data.

[0061] It should be noted that, in this embodiment of the invention, distribution network operation data is first acquired and then integrated. Specifically, the distribution network operation data includes distribution network equipment ledger information, distribution network line operation information, distribution network line ring network point information, and distribution network single-line diagram information. The distribution network equipment ledger information includes parameters such as equipment name, equipment number, and equipment type; the distribution network line operation information includes parameters such as line name, line number, and line length; the distribution network line ring network point information includes parameters such as ring network point number, ring network point name, and ring network point type; and the distribution network single-line diagram information includes parameters such as single-line diagram path and single-line diagram scale.

[0062] Data integration tools are used to perform data association and integration on the acquired power distribution network operation data, including data cleaning, data normalization and data association, to form a unified data model.

[0063] Step 102: Based on the integrated distribution network operation data, parse the CIM file of the feeder group to obtain the feeder group operation data.

[0064] It should be noted that the CIM (Common Information Model) file is a data exchange format specifically designed for power grid models, aiming to achieve seamless data transfer between different power grid analysis software and systems. Its core objective is to provide a standardized method for representing power grid models, ensuring data consistency and accuracy. The CIM file of the feeder group is retrieved from the distribution network equipment ledger information. A CIM parsing tool is used to parse the feeder group's CIM file, extracting feeder group information, including basic information, equipment information, and connection information. Basic information includes feeder group number, feeder group name, and feeder group description; equipment information includes equipment number, equipment name, and equipment type; connection information includes tie switch number, tie switch name, and tie switch status. Then, distribution transformer operation data from the power metering system and user data from the power marketing system are obtained through data interfaces, including distribution transformer number, distribution transformer name, and operating status. A data mapping method is used to match the parsed feeder group information, distribution transformer operation data, and power marketing system user data to the corresponding automation segments of the feeder group, forming complete feeder group operation data.

[0065] Step 103: Based on the feeder group operation data, determine the available power supply lines between each feeder segment and the power supply.

[0066] It should be noted that the feeder group operation data includes parsing the configuration information of automated switches and tie switches, including switch number, switch name, switch status, and switch type. Based on the switch configuration information, the feeder is divided into multiple feeder segments, forming a main line segmentation data model. Combining the power supply constraints of the distribution network, such as output constraints, voltage amplitude constraints, active power constraints, and reactive power constraints, the specific configuration can be tailored to the actual application scenario to determine the available power supply lines between each feeder segment and the power source.

[0067] Step 104: Determine the problematic feeder based on the preset problem judgment rules and the available power supply lines between each feeder segment and the power supply.

[0068] It should be noted that issues such as feeder overload, effective automation coverage, and non-transferable power supply are all based on the feeder dimension. Problems may be incorrectly identified due to feeder group operation methods and network structure, or some problems may be masked, leading to deviations in project planning. Therefore, it is necessary to identify problematic feeders. In this embodiment of the invention, whether a feeder in a feeder group is a problematic feeder is determined based on preset problem judgment rules and the available power supply lines between each feeder segment and the power supply. Preset problem judgment rules include rules for effective distribution automation coverage, single-radial feeder judgment, minimum self-healing configuration requirement judgment, and feeder overload judgment. Effective distribution automation coverage refers to the proportion of distribution equipment that can be reasonably controlled in the distribution system out of the total number of distribution equipment. Single-radial feeder refers to a single route extending outward from a central point or main line in feeder cable wiring. Minimum self-healing configuration requirement refers to the minimum configuration requirements for achieving feeder self-healing in the distribution network. Feeder overload refers to the current load on a feeder line in the power system exceeding its design allowable range. If a feeder in a feeder group meets the minimum configuration requirements for effective coverage of distribution automation, single radiation of feeder, and self-healing of feeder, but there is a situation of feeder overload, then the feeder is determined to be a problematic feeder.

[0069] In one embodiment, before step 102, the problem judgment rule database can be initialized first. Initializing the problem judgment rule database includes establishing the rule database table structure, loading rule data, and establishing indexes. The rule data includes preset problem judgment rules. Specifically, establishing the rule database table structure includes establishing fields such as rule number, rule name, rule description, rule conditions, and rule results. Loading rule data involves extracting relevant rule data from the database, including rules for effective coverage judgment of distribution automation, rules for single-radiation judgment of feeders, rules for minimum configuration requirements for feeder self-healing, and rules for feeder overload judgment. Establishing indexes includes establishing indexes for rule numbers and rule names. The specific execution process of step 104 is as follows:

[0070] Perform a distribution automation effective coverage judgment. If the feeder meets the distribution automation effective coverage, then jump to perform a feeder single-radial judgment. If the feeder does not meet the distribution automation effective coverage, then return to the initial problem judgment rule database.

[0071] Perform a single-radiation judgment on the feeder. If the feeder meets the single-radiation requirement, jump to the judgment of the minimum configuration requirement for feeder self-healing. If the feeder does not meet the single-radiation requirement, return to the initialization problem judgment rule database.

[0072] Perform a minimum configuration requirement check for feeder self-healing. If the feeder meets the minimum configuration requirement for feeder self-healing, proceed to perform a feeder overload check. If the feeder does not meet the minimum configuration requirement for feeder self-healing, return to the initialization problem judgment rule database.

[0073] Perform a feeder overload check. If the feeder meets the feeder overload condition, then identify the problematic feeder. If the feeder does not meet the feeder overload condition, return to the initial problem judgment rule database.

[0074] Step 105: Analyze all feasible operating modes of the feeder group where the problematic feeder is located.

[0075] It should be noted that, for the problematic feeder, all feasible operating modes of the feeder group to which the problematic feeder belongs are analyzed. Specifically, the load balancing degree of each feasible operating mode is calculated, and the load balancing degree should be controlled between 60% and 80%. The number of non-transferable lines for each feasible operating mode is analyzed, with a target value of 0 to 3 lines. The variance index of each feasible operating mode is calculated, and the variance index should be controlled between 0.8 and 1.2.

[0076] Step 106: Evaluate the advantages and disadvantages of each feasible operating mode to obtain the optimal feasible operating mode.

[0077] It should be noted that the advantages and disadvantages of each feasible operating mode are evaluated to determine the optimal feasible operating mode. Specifically, based on the variance index of each feasible operating mode, a priority list of each feasible operating mode is compiled, with lower variance indicating higher priority. Based on the load balancing degree, number of non-transferable lines, and variance index of each feasible operating mode, the operating effect of each feasible operating mode under different loads is obtained. The operating effect can be displayed based on indicators such as line load curves and user power supply rate. Based on the priority list of each feasible operating mode and its operating effect under different loads, the optimal feasible operating mode is determined. Specifically, based on indicators such as line load curves and user power supply rate, the safety and reliability of each feasible operating mode are evaluated to determine its operating effect under different loads. Finally, by combining the priority list of each feasible operating mode, the feasible operating mode that best meets the expectations is selected as the optimal feasible operating mode.

[0078] Step 107: Based on the optimal and feasible operating mode, generate a power supply control scheme for the distribution network feeder group.

[0079] It should be noted that after determining the optimal and feasible operating mode, corresponding power transfer control instructions are generated based on this mode, including the switching operation sequence and power supply selection. These instructions are then sent to relevant equipment via the communication system, and the monitoring system monitors the execution results of these instructions in real time and updates the operating database.

[0080] The power transfer control method for distribution network feeder groups provided by this invention integrates and correlates distribution network operation data, analyzes and obtains feeder group operation data, determines the available power supply lines between each feeder segment and the power supply source, then identifies the problematic feeder based on preset problem judgment rules, analyzes all feasible operating modes of the feeder group containing the problematic feeder, evaluates the advantages and disadvantages of each feasible operating mode, and thus obtains the optimal feasible operating mode, resulting in a power transfer control scheme for distribution network feeder groups. The power transfer control scheme obtained by the power transfer control method for distribution network feeder groups provided by this invention is applicable to the power transfer control of feeder groups throughout the entire distribution network, and is not limited to automatic power transfer between tie lines controlled by tie switches. It solves the technical problem that existing traditional distribution network planning methods cannot meet the complex power transfer control requirements of distribution networks.

[0081] For easier understanding, please refer to Figure 2 This invention provides an embodiment of a power supply control device for a distribution network feeder group, comprising:

[0082] The data acquisition module is used to acquire and integrate power distribution network operation data.

[0083] The data parsing module is used to parse the CIM file of the feeder group based on the integrated distribution network operation data to obtain the feeder group operation data;

[0084] The power supply analysis module is used to determine the power supply lines between each feeder segment and the power supply based on the feeder group's operating data.

[0085] The feeder analysis module is used to identify problematic feeders based on preset problem judgment rules and the available power supply lines between each feeder segment and the power supply.

[0086] The operation analysis module is used to analyze all possible operating modes of the feeder group where the problematic feeder is located;

[0087] The evaluation module is used to assess the merits of each feasible operating mode and obtain the optimal feasible operating mode.

[0088] The control module is used to generate a power supply control scheme for the distribution network feeder group based on the optimal and feasible operating mode.

[0089] In one embodiment, the data acquisition module is specifically used for:

[0090] Obtain information on distribution network equipment ledgers, distribution network line operation information, distribution network line ring network point information, and distribution network single-line diagram information;

[0091] Data cleaning, normalization, and association are performed on the distribution network equipment ledger information, distribution network line operation information, distribution network line ring network point information, and distribution network single line diagram information.

[0092] In one embodiment, the data parsing module is specifically used for:

[0093] The CIM parsing tool is used to parse the CIM file of the feeder group in the power distribution network operation data and extract the feeder group information, which includes basic information, equipment information and connection information.

[0094] Data interfaces are used to obtain distribution transformer operation data from the power metering system and user data from the power marketing system.

[0095] The parsed feeder group information, distribution transformer operation data, and power marketing system user data are matched to the corresponding automation segments of the feeder group to form complete feeder group operation data.

[0096] In one embodiment, the power-enabled analysis module is specifically used for:

[0097] Based on the feeder group operation data, analyze the configuration information of the automatic switch and tie switch;

[0098] Based on the configuration information of the automatic switches and tie switches, the feeder is divided into multiple feeder segments to form a main line segmentation data model;

[0099] Based on the segmented data model of the main line and the power supply constraints of the distribution network, the available power supply lines between each feeder segment and the power supply source are determined.

[0100] In one embodiment, an initialization module is further included. This initialization module is used to initialize the problem judgment rule database, including establishing the rule database table structure, loading rule data, and creating an index. The rule data includes preset problem judgment rules. Correspondingly, the feeder analysis module is specifically used for:

[0101] Perform a distribution automation effective coverage judgment. If the feeder meets the distribution automation effective coverage, then jump to perform a feeder single-radial judgment. If the feeder does not meet the distribution automation effective coverage, then return to the initial problem judgment rule database.

[0102] Perform a single-radiation judgment on the feeder. If the feeder meets the single-radiation requirement, jump to the judgment of the minimum configuration requirement for feeder self-healing. If the feeder does not meet the single-radiation requirement, return to the initialization problem judgment rule database.

[0103] Perform a minimum configuration requirement check for feeder self-healing. If the feeder meets the minimum configuration requirement for feeder self-healing, proceed to perform a feeder overload check. If the feeder does not meet the minimum configuration requirement for feeder self-healing, return to the initialization problem judgment rule database.

[0104] Perform a feeder overload check. If the feeder meets the feeder overload condition, then identify the problematic feeder. If the feeder does not meet the feeder overload condition, return to the initial problem judgment rule database.

[0105] In one embodiment, the running analysis module is specifically used for:

[0106] Calculate the load balancing degree of each feasible operating mode;

[0107] Analyze the number of non-transferable lines for each feasible operating mode;

[0108] Calculate the variance index for each feasible operating mode.

[0109] In one embodiment, the evaluation module is specifically used for:

[0110] Based on the variance index of each feasible operating mode, list the priorities of each feasible operating mode;

[0111] Based on the load balancing degree, number of non-transferable lines, and variance index of each feasible operating mode, the operating effect of each feasible operating mode under different loads is obtained;

[0112] Based on the priority list of each feasible operating mode and the operating effect of each feasible operating mode under different loads, the optimal feasible operating mode is determined.

[0113] The power supply control device for distribution network feeder groups provided in this invention is used to execute the power supply control method for distribution network feeder groups provided in this invention. Its technical effects have been described in the embodiments of the power supply control method for distribution network feeder groups provided in this invention, and will not be repeated here.

[0114] The terms “first,” “second,” “third,” etc., used in this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0115] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power supply control method for a distribution network feeder group, characterized in that, include: Acquire and integrate power distribution network operation data; Based on the integrated distribution network operation data, the CIM file of the feeder group is parsed to obtain the feeder group operation data; Based on the feeder group operation data, determine the available power supply lines between each feeder segment and the power supply. Based on the pre-set problem judgment rules and the available power supply lines between each feeder segment and the power supply, the problematic feeder is identified. Analyze all feasible operating modes of the feeder group containing the problematic feeder; Evaluate the advantages and disadvantages of each feasible operating mode to obtain the optimal feasible operating mode; Based on the optimal and feasible operating mode, a power supply control scheme for the distribution network feeder group is generated.

2. The power supply control method for distribution network feeder groups according to claim 1, characterized in that, Acquire and integrate power distribution network operation data, including: Obtain information on distribution network equipment ledgers, distribution network line operation information, distribution network line ring network point information, and distribution network single-line diagram information; Data cleaning, normalization, and association are performed on the distribution network equipment ledger information, distribution network line operation information, distribution network line ring network point information, and distribution network single line diagram information.

3. The power supply control method for distribution network feeder groups according to claim 1, characterized in that, Based on distribution network operation data, the CIM file of the feeder group is parsed to obtain the feeder group operation data, including: The CIM parsing tool is used to parse the CIM file of the feeder group in the power distribution network operation data and extract the feeder group information, which includes basic information, equipment information and connection information. Data interfaces are used to obtain distribution transformer operation data from the power metering system and user data from the power marketing system. The parsed feeder group information, distribution transformer operation data, and power marketing system user data are matched to the corresponding automation segments of the feeder group to form complete feeder group operation data.

4. The power supply control method for distribution network feeder groups according to claim 1, characterized in that, Based on the feeder group's operating data, determine the available power supply lines between each feeder segment and the power source, including: Based on the feeder group operation data, analyze the configuration information of the automatic switch and tie switch; Based on the configuration information of the automatic switches and tie switches, the feeder is divided into multiple feeder segments to form a main line segmentation data model; Based on the segmented data model of the main line and the power supply constraints of the distribution network, the available power supply lines between each feeder segment and the power supply source are determined.

5. The power supply control method for distribution network feeder groups according to claim 1, characterized in that, Based on distribution network operation data, the CIM file of the feeder group is parsed to obtain the feeder group operation data, which previously included: Initialize the problem judgment rule database, including establishing the rule database table structure, loading rule data, and creating indexes. The rule data includes preset problem judgment rules. Based on the pre-defined problem judgment rules and the available power supply lines between each feeder segment and the power supply, the problematic feeder is identified, including: Perform a distribution automation effective coverage judgment. If the feeder meets the distribution automation effective coverage, then jump to perform a feeder single-radial judgment. If the feeder does not meet the distribution automation effective coverage, then return to the initial problem judgment rule database. Perform a single-radiation judgment on the feeder. If the feeder meets the single-radiation requirement, jump to the judgment of the minimum configuration requirement for feeder self-healing. If the feeder does not meet the single-radiation requirement, return to the initialization problem judgment rule database. Perform a minimum configuration requirement check for feeder self-healing. If the feeder meets the minimum configuration requirement for feeder self-healing, proceed to perform a feeder overload check. If the feeder does not meet the minimum configuration requirement for feeder self-healing, return to the initialization problem judgment rule database. Perform a feeder overload check. If the feeder meets the feeder overload condition, then identify the problematic feeder. If the feeder does not meet the feeder overload condition, return to the initial problem judgment rule database.

6. The power supply control method for a distribution network feeder group according to claim 1, characterized in that, Analyze all possible operating modes of the feeder group containing the problematic feeder, including: Calculate the load balancing degree of each feasible operating mode; Analyze the number of non-transferable lines for each feasible operating mode; Calculate the variance index for each feasible operating mode.

7. The power supply control method for a distribution network feeder group according to claim 6, characterized in that, Evaluate the advantages and disadvantages of each feasible operating mode to obtain the optimal feasible operating mode, including: Based on the variance index of each feasible operating mode, list the priorities of each feasible operating mode; Based on the load balancing degree, number of non-transferable lines, and variance index of each feasible operating mode, the operating effect of each feasible operating mode under different loads is obtained; Based on the priority list of each feasible operating mode and the operating effect of each feasible operating mode under different loads, the optimal feasible operating mode is determined.

8. A power supply control device for a distribution network feeder group, characterized in that, include: The data acquisition module is used to acquire and integrate power distribution network operation data. The data parsing module is used to parse the CIM file of the feeder group based on the integrated distribution network operation data to obtain the feeder group operation data; The power supply analysis module is used to determine the power supply lines between each feeder segment and the power supply based on the feeder group's operating data. The feeder analysis module is used to identify problematic feeders based on preset problem judgment rules and the available power supply lines between each feeder segment and the power supply. The operation analysis module is used to analyze all possible operating modes of the feeder group where the problematic feeder is located; The evaluation module is used to assess the merits of each feasible operating mode and obtain the optimal feasible operating mode. The control module is used to generate a power supply control scheme for the distribution network feeder group based on the optimal and feasible operating mode.

9. The power supply control device for a distribution network feeder group according to claim 8, characterized in that, The data acquisition module is specifically used for: Obtain information on distribution network equipment ledgers, distribution network line operation information, distribution network line ring network point information, and distribution network single-line diagram information; Data cleaning, normalization, and association are performed on the distribution network equipment ledger information, distribution network line operation information, distribution network line ring network point information, and distribution network single line diagram information.

10. The power supply control device for a distribution network feeder group according to claim 8, characterized in that, The data parsing module is specifically used for: The CIM parsing tool is used to parse the CIM file of the feeder group in the power distribution network operation data and extract the feeder group information, which includes basic information, equipment information and connection information. Data interfaces are used to obtain distribution transformer operation data from the power metering system and user data from the power marketing system. The parsed feeder group information, distribution transformer operation data, and power marketing system user data are matched to the corresponding automation segments of the feeder group to form complete feeder group operation data.

Images