Design method and device for electrical small cubicle of nuclear power plant based on load data classification

Abstract

The application discloses a nuclear power plant electrical small three-box design method and device based on load data classification, and the method comprises the following steps: obtaining a small three-box typical scheme, obtaining source electrical load data of a nuclear power plant, classifying the source electrical load data to obtain intermediate electrical load data, identifying the intermediate electrical load data, classifying the small three-box, obtaining target electrical load data and a small three-box list corresponding to the target electrical load data, designing the small three-box based on the small three-box typical scheme, obtaining a small three-box system diagram, and outputting the small three-box system diagram, the source electrical load data list of the nuclear power plant, and the small three-box list to complete the nuclear power plant electrical small three-box design based on the load data classification. The method can realize data digitization, process automation and modularization, thereby improving the electrical design quality of the nuclear power plant and improving the electrical design efficiency of the nuclear power plant.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear power technology, and in particular to a nuclear power plant electrical small three-box design method and device based on load data classification. BACKGROUND

[0002] Nuclear power engineering projects have long construction periods, large engineering quantities, extremely high technical requirements, and complex interface management.

[0003] The consistency and accuracy of nuclear power plant electrical design management are mainly guaranteed by design documents, procurement technical specifications, construction drawings and other documents, and these documents are currently mainly realized by manual work. However, due to the large amount of nuclear power plant electrical load data, the large quantity and the large variety, the manual method has the following disadvantages:

[0004] (1) The manual method can reduce the design quality: the same load repeatedly manually produces different results, and the manual method is more prone to errors;

[0005] (2) High labor cost and low efficiency. SUMMARY

[0006] The technical problem to be solved by the present application is to solve the above-mentioned deficiencies of the prior art, and to provide a nuclear power plant electrical small three-box design method and device based on load data classification, which can improve the design quality of the nuclear power plant and improve the design efficiency of the nuclear power plant.

[0007] In a first aspect, the present application provides a nuclear power plant electrical small three-box design method based on load data classification, which comprises:

[0008] S1: obtaining a small three-box typical scheme, and obtaining source electrical load data of the nuclear power plant, and performing load classification on the source electrical load data to obtain intermediate electrical load data; the small three-box typical scheme is a small three-box design scheme in a preset nuclear power plant electrical load data small three-box design scheme library;

[0009] S2: performing target identification and small three-box classification on the intermediate electrical load data to obtain target electrical load data and a small three-box list corresponding to the target electrical load data;

[0010] S3: performing small three-box design on the target electrical load data based on the small three-box typical scheme to obtain a small three-box system diagram;

[0011] S4: outputting the small three-box system diagram, the source electrical load data list of the nuclear power plant, and the small three-box list to complete the nuclear power plant electrical small three-box design based on load data classification.

[0012] Further, the step S1, the source electrical load data is classified according to load classification, and intermediate electrical load data is obtained, and the specific steps are as follows:

[0013] S11: the source electrical load data is classified according to load position, and first intermediate electrical load data is obtained;

[0014] S12: the first intermediate electrical load data is classified according to load capacity, and second intermediate electrical load data is obtained;

[0015] S13: the second intermediate electrical load data is classified according to load power supply, and the final intermediate electrical load data is obtained.

[0016] Further, the step S11, the specific steps are as follows:

[0017] S111: the source electrical load data is classified according to the first classification principle, and the first process electrical load data is obtained; the first classification principle is to classify the source electrical load data according to the load position;

[0018] S112: compare the number of loops formed by the first process electrical load data with the number of loops of the small three boxes;

[0019] S113: when the number of loops formed by the first process electrical load data is less than the maximum number of loops of any small three boxes, the first process electrical load data is determined as the first intermediate electrical load data, otherwise, return to S111 to reset the first classification principle until the first intermediate electrical load data is determined.

[0020] Further, the step S12, the specific steps are as follows:

[0021] S121: the first intermediate electrical load data is classified according to the second classification principle, and the second process electrical load data is obtained; the second classification principle is to classify the first intermediate electrical load data according to load capacity;

[0022] S122: compare the number of loops formed by the second process electrical load data with the number of loops of the small three boxes;

[0023] S123: when the number of loops formed by the second process electrical load data is less than the maximum number of loops of any small three boxes, the second process electrical load data is determined as the second intermediate electrical load data, otherwise, return to S121 to reset the second classification principle until the second intermediate electrical load data is determined.

[0024] Further, the step S13, the specific steps are as follows:

[0025] S131: classify the second intermediate electrical load data according to a third classification principle to obtain third process electrical load data; the third classification principle is to classify the second intermediate electrical load data according to a load power source, and the load power source includes a power source level, a power source series, a voltage level, and a power source type;

[0026] S132: compare the number of loops formed by the third process electrical load data with the number of loops of the small three-boxes;

[0027] S133: when the number of loops formed by the third process electrical load data is less than the maximum number of loops of any small three-box, the third process electrical load data is determined as the final intermediate electrical load data, otherwise, return to S131 to reset the third classification principle until the final intermediate electrical load data is determined.

[0028] Further, in the step S3, the target electrical load data is designed by the small three-boxes, specifically including:

[0029] designing the target electrical load data by a single box;

[0030] and,

[0031] after designing the target electrical load data by the single box, cascading a plurality of single box designs to form a small three-box system design.

[0032] Further, the single box design includes the following steps:

[0033] editing single box parameters to obtain single box attribute information;

[0034] obtaining single box loop information according to the single box attribute information, the single box loop information including single box busbar scheme and parameters, single box incoming line loop scheme and parameters, single box outgoing line loop scheme and parameters, and single box loop element and cable selection;

[0035] calculating single box load information based on the single box attribute information and the single box loop information, the single box load information including single box incoming and outgoing line loop current and power;

[0036] generating a system diagram of the single box according to the single box attribute information, loop information and load information.

[0037] Further, the step S1 further includes a step S0 before the step S1,

[0038] S0: constructing a nuclear power plant electrical load data small three-box design scheme library, the nuclear power plant electrical load data small three-box design scheme library including the following in parallel:

[0039] an incoming line scheme, the incoming line scheme including a single power source incoming line scheme and a double power source incoming line scheme;

[0040] outlet solutions, the outlet solutions including outlet solutions without backup outlets and outlet solutions with backup outlets;

[0041] terminal adapter solutions.

[0042] In a second aspect, the present application provides a device for designing electrical small cubicles of a nuclear power plant based on load data classification, the device comprising:

[0043] an acquisition unit configured to acquire typical solutions of small cubicles and source electrical load data of the nuclear power plant;

[0044] a classification unit connected to the acquisition unit and configured to classify the acquired source electrical load data of the nuclear power plant to obtain intermediate electrical load data;

[0045] a management unit connected to the classification unit and configured to identify targets and classify small cubicles based on the intermediate electrical load data to obtain target electrical load data and a list of small cubicles corresponding to the target electrical load data;

[0046] a design unit connected to the acquisition unit and the management unit respectively and configured to design small cubicles based on the acquired typical solutions of small cubicles to obtain a small cubicle system diagram;

[0047] an output unit connected to the design unit and the management unit respectively and configured to output the small cubicle system diagram, the list of source electrical load data of the nuclear power plant, and the list of small cubicles to complete the design of the electrical small cubicles of the nuclear power plant based on the load data classification.

[0048] Further, the classification unit comprises:

[0049] a first classification module connected to the acquisition unit and configured to classify the source electrical load data according to load positions to obtain first intermediate electrical load data;

[0050] a second classification module connected to the first classification module and configured to classify the first intermediate electrical load data according to load capacities to obtain second intermediate electrical load data;

[0051] a third classification module connected to the second classification module and configured to classify the second intermediate electrical load data according to load sources to obtain final intermediate electrical load data.

[0052] Advantages of the present application:

[0053] (1) The present application can automatically complete the design compared with the manual method, thereby improving the design quality of the nuclear power plant and enhancing the design efficiency of the nuclear power plant.

[0054] (2) The present application is based on load data classification and small three-box design, so that the design process is more concise and clear;

[0055] (3) The present application directly applies the preset small three-box design scheme in the design process, and the small three-box design scheme is a universal standardized template. The present application designs different electrical data of a nuclear power plant in a standardized manner, reduces the workload of the designers, and improves the design efficiency;

[0056] (4) The small three-box system diagram, the source electrical load data list of the whole nuclear power plant, and the small three-box list automatically output by the present application are convenient for maintaining the consistency, integrity and accuracy of the data, and are also convenient for inquiry.

[0057] (5) The present application can digitize the small three-box design data and store and call the data. The present application can generate different forms of design results from one design, and can automatically update the whole-plant electrical load database and the small three-box list according to the generated small three-box system diagram, so as to improve the design quality of the nuclear power plant and improve the design efficiency of the nuclear power plant. BRIEF DESCRIPTION OF DRAWINGS

[0058] Figure 1 The figure is a small three-box design flowchart of a nuclear power plant in the embodiment of the present application;

[0059] Figure 2 The figure is a small three-box design input and output flowchart of a nuclear power plant in the embodiment of the present application;

[0060] Figure 3 The figure is an electrical load classification diagram in the embodiment of the present application;

[0061] Figure 4 The figure is a small three-box design device diagram of a nuclear power plant in the embodiment of the present application.

[0062] In the figure, 10 is an acquisition unit, 20 is a classification unit, 30 is a management unit, 40 is a design unit, and 50 is an output unit. DETAILED DESCRIPTION

[0063] In order for those skilled in the art to better understand the technical solutions of the present application, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0064] It can be understood that the specific embodiments and the accompanying drawings described herein are only used to explain the present application, but not to limit the present application.

[0065] It can be understood that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0066] It can be understood that, for the convenience of description, only the parts related to the present application are shown in the drawings of the present application, and the parts irrelevant to the present application are not shown in the drawings.

[0067] It can be understood that each unit and module involved in the embodiments of the present application can correspond to only one physical structure, or can be composed of multiple physical structures, or multiple units and modules can be integrated into one physical structure.

[0068] It can be understood that, in the case of no conflict, the functions and steps marked in the flowcharts and block diagrams of the present application can occur in an order different from that marked in the drawings.

[0069] It can be understood that, in the flowcharts and block diagrams of the present application, the architecture, functions and operations of the possible implementations of the system, device, equipment and method according to the embodiments of the present application are shown. Each block in the flowchart or block diagram can represent a unit, module, program segment, code, which contains executable instructions for realizing the specified functions. Moreover, each block or combination of blocks in the block diagram and flowchart can be realized by a hardware-based system for realizing the specified functions, or by a combination of hardware and computer instructions.

[0070] It can be understood that the units and modules involved in the embodiments of the present application can be realized by software or by hardware, for example, the units and modules can be located in a processor.

[0071] Embodiment 1:

[0072] As shown in Figure 1 and Figure 2 The present embodiment provides a nuclear power plant electrical small three-box design method based on load data classification, which comprises the following steps:

[0073] S1: obtaining a small three-box typical scheme, obtaining source electrical load data of a nuclear power plant, and classifying the source electrical load data to obtain intermediate electrical load data; the small three-box typical scheme is a small three-box design scheme in a preset nuclear power plant electrical load data small three-box design scheme library;

[0074] Specifically, the source electrical load data of the whole nuclear power plant includes power, current, position, power supply sequence, voltage level, power source type and the like; the typical scheme of the small three-box is a small three-box design scheme in the small three-box design scheme library of the nuclear power plant electrical load data, and the small three-box design scheme library of the nuclear power plant electrical load data is pre-constructed and includes a single power supply line scheme, a double power supply line scheme, a normal outgoing line scheme (an outgoing line scheme without a standby outgoing line), a standby outgoing line scheme (an outgoing line scheme with a standby outgoing line), and a terminal adapter scheme. Each time the design is performed, the corresponding small three-box typical scheme is selected from the design scheme library for design, thereby improving the efficiency and saving the time.

[0075] Specifically, the source electrical load data is classified to obtain intermediate electrical load data, and the specific steps include the following:

[0076] S11: The source electrical load data is classified according to the load position to obtain first intermediate electrical load data;

[0077] The step S11 is specifically: the source electrical load data is classified and divided according to the first classification principle to obtain first process electrical load data; the first classification principle is to classify the source electrical load data according to the load position; the number of loops formed by the first process electrical load data is compared with the number of loops of the small three-box; when the number of loops formed by the first process electrical load data is less than the maximum number of loops of any small three-box, the first process electrical load data is determined as the first intermediate electrical load data, otherwise the first classification principle is reset until the first intermediate electrical load data is determined.

[0078] S12: The first intermediate electrical load data is classified according to the load capacity to obtain second intermediate electrical load data;

[0079] The step S12 is specifically: the first intermediate electrical load data is classified and divided according to the second classification principle to obtain second process electrical load data; the second classification principle is to classify the first intermediate electrical load data according to the load capacity; the number of loops formed by the second process electrical load data is compared with the number of loops of the small three-box; when the number of loops formed by the second process electrical load data is less than the maximum number of loops of any small three-box, the second process electrical load data is determined as the second intermediate electrical load data, otherwise the second classification principle is reset until the second intermediate electrical load data is determined.

[0080] S13: The second intermediate electrical load data is classified according to the load power source to obtain the final intermediate electrical load data.

[0081] Specifically, step S12 involves classifying the second intermediate electrical load data according to the third classification principle to obtain the third process electrical load data. The third classification principle classifies the second intermediate electrical load data according to the load power source, which includes power supply level, power supply series, voltage level, and power supply type. The number of circuits formed by the third process electrical load data is compared with the number of circuits in the small three-box. If the number of circuits formed by the third process electrical load data is less than the maximum number of circuits in any small three-box, then the third process electrical load data is determined as the final intermediate electrical load data. Otherwise, the third classification principle is reset until the final intermediate electrical load data is determined.

[0082] S2: Perform target identification and small three-box classification on the intermediate electrical load data to obtain the target electrical load data and the corresponding small three-box list;

[0083] like Figure 3 The electrical load classification diagram shown in this embodiment first classifies electrical loads according to their location, setting classification principles such as same floor, adjacent rooms, etc. Based on the location classification results, further classification is performed according to load capacity, setting the load capacity range for entering the small three-box. The load mainly focuses on power characteristics, and load capacity can be reflected by load power, for example, setting the principle as 2kW, ±1kW. Further classification is performed according to the load power source. The main criteria for power source classification include: power level (e.g., safety level, non-safety level); power series (e.g., column A, column B); voltage level (e.g., medium voltage, low voltage); power type (e.g., AC, DC, UPS, diesel engine); and power supply requirements (e.g., whether dual power supply is required). If the classification results exceed the maximum number of circuits in a single small three-box, the classification rules should be adjusted. After classification, target identification and small three-box categorization are performed to obtain target electrical load data and a list of small three-boxes corresponding to the target electrical load data.

[0084] S3: Based on the typical scheme of small three-box enclosure, design a small three-box enclosure for the target electrical load data and obtain the small three-box enclosure system diagram;

[0085] Specifically, the design of the small three-box enclosure in step S3 includes the following steps:

[0086] A single-enclosure design is performed based on the target electrical load data;

[0087] as well as,

[0088] After designing a single enclosure based on the target electrical load data, several single enclosure designs are cascaded to form a small three-enclosure system design.

[0089] More specifically, the single-box design includes the following steps:

[0090] Edit the parameters of a single enclosure to obtain its attribute information;

[0091] According to the single-box attribute information, single-box circuit information is acquired, and the single-box circuit information includes single-box busbar scheme and parameters, single-box incoming line circuit scheme and parameters, single-box outgoing line circuit scheme and parameters, and selection of single-box circuit elements and cables;

[0092] Based on the single-box attribute information and the single-box circuit information, single-box load information is calculated, and the single-box load information includes single-box incoming and outgoing line circuit current and power;

[0093] According to the single-box attribute information, circuit information and load information, a system diagram of the single-box is generated.

[0094] The small three-box can also be referred to as a grounding box. In the embodiment, the small three-box mainly refers to a grounding distribution box. Before the system diagram is generated, circuit information of all electrical load data is acquired, the circuit information is summarized, then system diagram parameters of the small three-box are generated according to the summarized circuit information, and after the model of the switch and / or the type of the power module are set according to the system diagram parameters of the small three-box, the system diagram is output.

[0095] S4: output the small three-box system diagram, the list of source electrical load data of the nuclear power plant, and the list of small three-boxes, to complete the design of the small three-boxes of the nuclear power plant based on the classification of the load data.

[0096] The working principle of the embodiment is shown in Figure 2 First, the design range is selected, such as the electrical load of the whole plant is screened for a certain layer as the starting point of the design of the small three-box. Then, the electrical load database in the design range and the typical scheme of the small three-box are taken as the input, the electrical load is classified, the small three-box is managed, the small three-box is designed, and finally the small three-box system diagram is automatically generated, the small three-box attribute generated is updated to the electrical load database of the whole plant, and the list of small three-boxes is automatically updated.

[0097] The embodiment can realize data digitization, process automation and module standardization, specifically:

[0098] Compared with the artificial mode, the design can be automatically completed, thereby improving the design quality of the nuclear power plant and improving the design efficiency of the nuclear power plant; the embodiment is based on load data classification and small three-box design, so that the design process is more concise and clear; the embodiment directly applies the preset small three-box design scheme during design, and the small three-box design scheme is a universal standardized template; the application designs different electrical data of the nuclear power plant in a standardized manner, reduces the workload of the designer, and improves the design efficiency; the small three-box system diagram, the source electrical load data list of the nuclear power plant, and the small three-box list automatically output by the embodiment are convenient for maintaining the consistency, integrity and accuracy of the data, and are also convenient for inquiry. The embodiment can digitize the small three-box design data and call, achieve different forms of design results from one design, and automatically update the whole-plant electrical load database and the small three-box list according to the generated small three-box system diagram, thereby improving the design quality of the nuclear power plant and improving the design efficiency of the nuclear power plant.

[0099] Embodiment 2:

[0100] As shown in Figure 2 , Figure 3 and Figure 4 , the embodiment provides a nuclear power plant electrical small three-box design device based on load data classification, which comprises an acquisition unit 10, a classification unit 20, a management unit 30, a design unit 40 and an output unit 50:

[0101] The acquisition unit 10 is used for acquiring small three-box typical schemes and acquiring source electrical load data of a whole plant of a nuclear power plant;

[0102] The classification unit 20 is connected with the acquisition unit 10 and is used for classifying the acquired source electrical load data of the whole plant of the nuclear power plant according to load, to obtain intermediate electrical load data;

[0103] Specifically, the classification unit 20 comprises:

[0104] A first classification module connected with the acquisition unit 10 is used for classifying the source electrical load data according to load position, to obtain first intermediate electrical load data;

[0105] A second classification module connected with the first classification module is used for classifying the first intermediate electrical load data according to load capacity, to obtain second intermediate electrical load data;

[0106] A third classification module connected with the second classification module is used for classifying the second intermediate electrical load data according to load power source, to obtain final intermediate electrical load data.

[0107] The management unit 30 is connected with the classification unit 20, and is used for target identification and small three-box classification of the intermediate electrical load data, so as to obtain target electrical load data and a small three-box list corresponding to the target electrical load data;

[0108] The design unit 40 is connected with the acquisition unit 10 and the management unit 30 respectively, and is used for small three-box design of the target electrical load data according to the acquired small three-box typical scheme, so as to obtain a small three-box system diagram;

[0109] The output unit 50 is connected with the design unit 40 and the management unit 30 respectively, and is used for outputting the small three-box system diagram, the source electrical load data list of the whole nuclear power plant, and the small three-box list, so as to complete the electrical small three-box design of the nuclear power plant based on load data classification.

[0110] The embodiment can realize data digitization, process automation and module standardization, specifically as follows:

[0111] Compared with the manual mode, the design can be automatically completed, so as to improve the design quality and efficiency of the nuclear power plant; the embodiment is based on load data classification and small three-box design, so that the design process is more concise and clear; the small three-box design scheme is directly applied in the design, and the small three-box design scheme is a universal standardized template; the nuclear power plant is designed in a standardized manner, so as to reduce the workload of the designer and improve the design efficiency; the small three-box system diagram, the source electrical load data list of the whole nuclear power plant and the small three-box list are automatically outputted, so as to facilitate the consistency, integrity and accuracy of the maintenance data, and also facilitate the query; the small three-box design data can be stored and called in a digital manner, so as to generate different forms of design results, and the whole plant electrical load database and the small three-box list can be automatically updated according to the generated small three-box system diagram, so as to improve the design quality and efficiency of the nuclear power plant.

[0112] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the present application, and the present application is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the present application, and these modifications and improvements are also regarded as the protection scope of the present application.

Claims

1. A design method for a nuclear power plant's electrical sub-chassis based on load data classification, characterized in that, The method includes the following steps: S1: Obtain a typical three-box scheme and obtain the source electrical load data of the entire nuclear power plant, and classify the source electrical load data to obtain intermediate electrical load data; the typical three-box scheme is a three-box design scheme in the preset nuclear power plant electrical load data three-box design scheme library; S2: Perform target identification and small three-box classification on the intermediate electrical load data to obtain the target electrical load data and the corresponding small three-box list; S3: Based on the typical scheme of small three-box enclosure, design a small three-box enclosure for the target electrical load data and obtain the small three-box enclosure system diagram; S4: Output the small three-box system diagram, the source electrical load data list of the entire nuclear power plant, and the small three-box list to complete the nuclear power plant electrical small three-box design based on load data classification; In step S1, the intermediate electrical load data is obtained by classifying the source electrical load data, which specifically includes the following steps: S11: Classify the source electrical load data according to the load location to obtain the first intermediate electrical load data; Step S11 specifically includes the following steps: S111: The source electrical load data is classified according to the first classification principle to obtain the first process electrical load data; the first classification principle is to classify the source electrical load data according to the nearest location of the load; S112: Compare the number of circuits generated by the electrical load data of the first process with the number of circuits in the small three-box enclosure; S113: If the number of circuits formed by the electrical load data of the first process is less than the maximum number of circuits in any small three-box, then the electrical load data of the first process is determined to be the first intermediate electrical load data; otherwise, return to S111 to reset the first classification principle until the first intermediate electrical load data is determined. S12: Classify the first intermediate electrical load data according to the load capacity to obtain the second intermediate electrical load data; Step S12 specifically includes the following steps: S121: The first intermediate electrical load data is classified according to the second classification principle to obtain the second process electrical load data; the second classification principle is to classify the first intermediate electrical load data according to the load capacity. S122: Compare the number of circuits generated by the electrical load data of the second process with the number of circuits in the small three-box enclosure; S123: If the number of circuits formed by the electrical load data of the second process is less than the maximum number of circuits in any small three-box, then the electrical load data of the second process is determined to be the second intermediate electrical load data; otherwise, return to S121 to reset the second classification principle until the second intermediate electrical load data is determined. S13: Classify the second intermediate electrical load data according to the load power source to obtain the final intermediate electrical load data; Step S13 specifically includes the following steps: S131: The second intermediate electrical load data is classified according to the third classification principle to obtain the third process electrical load data; the third classification principle is to classify the second intermediate electrical load data according to the load power supply, wherein the load power supply includes power supply level, power supply series, voltage level and power supply type; S132: Compare the number of circuits generated by the electrical load data of the third process with the number of circuits in the small three-box enclosure; S133: If the number of circuits formed by the electrical load data of the third process is less than the maximum number of circuits in any small three-box, then the electrical load data of the third process is determined as the final intermediate electrical load data; otherwise, return to S131 to reset the third classification principle until the final intermediate electrical load data is determined.

2. The design method for the electrical sub-container of a nuclear power plant based on load data classification as described in claim 1, In step S3, the small three-box design is performed based on the target electrical load data, specifically including: A single-enclosure design is performed based on the target electrical load data; as well as, After designing a single enclosure based on the target electrical load data, several single enclosure designs are cascaded to form a small three-enclosure system design.

3. The design method for the electrical sub-container of a nuclear power plant based on load data classification according to claim 2, characterized in that, The single-box design includes the following steps: Edit the parameters of a single enclosure to obtain its attribute information; The single-enclosure circuit information is obtained based on the single-enclosure attribute information. The single-enclosure circuit information includes the single-enclosure bus scheme and parameters, the single-enclosure incoming circuit scheme and parameters, the single-enclosure outgoing circuit scheme and parameters, and the selection of single-enclosure circuit components and cables. The load information of a single enclosure is calculated based on the attribute information and circuit information of the single enclosure. The load information of the single enclosure includes the current and power of the incoming and outgoing circuits of the single enclosure. A system diagram for a single enclosure is generated based on its attribute information, circuit information, and load information.

4. The design method for the electrical sub-container of a nuclear power plant based on load data classification according to any one of claims 1 to 3, characterized in that, Step S0 is included before step S1. S0: Construct a design scheme library for small three-box electrical load data of nuclear power plants, wherein the design scheme library for small three-box electrical load data of nuclear power plants includes the following parallel components: The power supply input scheme includes a single power supply input scheme and a dual power supply input scheme. Outgoing line schemes, including outgoing line schemes without backup outgoing lines and outgoing line schemes with backup outgoing lines; Terminal adapter solution.

5. A design device for a nuclear power plant electrical sub-chassis based on load data classification, characterized in that, The apparatus is used to implement the method of claim 1, and the apparatus comprises: The acquisition unit is used to acquire typical small three-box schemes and source electrical load data for the entire nuclear power plant. The classification unit, connected to the acquisition unit, is used to classify the acquired source electrical load data of the entire nuclear power plant to obtain intermediate electrical load data. The management unit, connected to the classification unit, is used to identify targets and classify small three-boxes in the intermediate electrical load data to obtain target electrical load data and a list of small three-boxes corresponding to the target electrical load data. The design unit is connected to the acquisition unit and the management unit respectively, and is used to design the small three-box system based on the acquired typical scheme of small three-box, and obtain the small three-box system diagram. The output unit is connected to the design unit and the management unit respectively, and is used to output the small three-box system diagram, the source electrical load data list of the entire nuclear power plant, and the small three-box list, so as to complete the design of the nuclear power plant electrical small three-box based on load data classification.

6. The nuclear power plant electrical sub-box design device based on load data classification according to claim 5, characterized in that, The classification unit includes: The first classification module, connected to the acquisition unit, is used to classify the source electrical load data according to the load location to obtain the first intermediate electrical load data; The second classification module, connected to the first classification module, is used to classify the first intermediate electrical load data according to the load capacity to obtain the second intermediate electrical load data. The third classification module, connected to the second classification module, is used to classify the second intermediate electrical load data according to the load power source to obtain the final intermediate electrical load data.

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