Design method, device and equipment of electrical automation system and storage medium

Abstract

This invention discloses a design method, apparatus, device, and storage medium for an electrical automation system. The method includes: acquiring the data required to generate the electrical automation system based on its design requirements; determining the required electrical components, automatic control components, and their selection based on the required data and preset verification rules; determining the number of control cable cores required for the electrical components based on the electrical components and their specifications; determining the number of control cable cores required for the automatic control components based on a control point list; and integrating the electrical components, automatic control components, and their selection with the control cable core count to form a delivery document set for the electrical automation system design, as well as a design document capable of generating electrical automation system diagrams. By integrating the electrical and automatic control components, various documents meeting design requirements can be quickly generated, improving the design efficiency of the electrical automation system.

Description

Technical Field

[0001] This invention relates to the field of electrical automation system design technology, and specifically to a design method, apparatus, equipment and storage medium for an electrical automation system. Background Technology

[0002] Electrical automation systems consist of an electrical component for power distribution and an automatic control component for automated control. Currently, automation systems are typically designed by designing the electrical and automatic control components separately, and then integrating them to obtain the completed power automation system.

[0003] The above-mentioned method of designing the electrical and automatic control parts separately makes the information of the two parts independent of each other. During the integration process, there are problems such as mismatch in component selection and duplicate component numbers between the two parts, which require redesign and affect design efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a design method, apparatus, equipment, and storage medium for electrical automation systems. When integrating the electrical and automatic control components, it can quickly generate various documents that meet design requirements, thereby improving the design efficiency of electrical automation systems and solving the problem of low design efficiency in existing electrical automation systems.

[0005] This invention is achieved through the following technical solution:

[0006] The first aspect of this application provides a design method for an electrical automation system, including:

[0007] Based on the design requirements of the electrical automation system, the data required to generate the electrical automation system is obtained. This required data includes data on the electrical equipment involved in the electrical automation system, environmental parameters, performance data and design parameters of the electrical automation system, and basic data for equipment selection. Specifically, it includes data on the electrical equipment involved in the electrical automation system, a list of control points, environmental parameters, performance design parameters of the electrical automation system, and basic electrical data and equipment selection parameters for equipment selection.

[0008] Based on the required data and preset verification rules, determine the various components and component specifications required for the electrical part of the electrical automation system; the various component specifications include transformer capacity, electrical cable specifications, and power distribution component selection;

[0009] Based on the determined number and specifications of each component, determine the number of control cable cores required for the automatic control section;

[0010] The various components and their specifications required for the electrical components are integrated with the number of cores in the control cable to form a delivery document set for the design of the electrical automation system, as well as a design document capable of generating electrical automation system diagrams; the delivery document set contains various information required to generate the electrical automation system.

[0011] In one feasible implementation, the electrical component includes a transformer, the transformer capacity of which is determined by the following method:

[0012] Based on the data of electrical equipment and performance design parameters, determine the load values ​​for different power distribution rooms and different load levels;

[0013] Based on the determined load value and the preset transformer operating mode and load rate, the required transformer capacity is determined.

[0014] In one feasible implementation, the component selection is determined in the following way:

[0015] Based on the electrical equipment data, the performance design parameters, and the equipment selection parameters, suitable candidate components are selected from the electrical basic data;

[0016] The performance of the candidate components is verified, and the components that meet the performance requirements are selected from the candidate components.

[0017] In one feasible implementation, the component selection includes the selection of electrical cables, which is determined by the following method:

[0018] Based on the electrical equipment data and the environmental parameters, suitable candidate cable specifications are selected from the electrical basic data;

[0019] The required electrical cable specifications are determined by verifying the current carrying capacity and voltage drop of the candidate cables.

[0020] In one feasible implementation, the component selection includes circuit breaker selection, which is determined in the following way:

[0021] Based on the power and operating current of the electrical equipment, select suitable circuit breaker specifications from the aforementioned electrical basic data;

[0022] The three-phase short-circuit current is calculated using the symmetrical component method to verify the breaking capacity of the circuit breaker and determine the selection of auxiliary circuit protection components; the specifications of the circuit breaker that have passed the verification are selected.

[0023] In one feasible implementation, the number of control cable cores required for the automatic control section is determined based on the control point list, including:

[0024] The required number of input and output interfaces, signal types, and component reference numbers of the automatic control components are integrated to generate a list of input and output points;

[0025] Based on the input / output point list and control point list, determine the number of control cable cores required for the automatic control section.

[0026] In one feasible implementation, the method further includes: constructing a basic database containing basic data of various components used in the design of electrical automation systems; the various components include electrical cables, control cables, transformers, and power distribution and control components.

[0027] A second aspect of this application provides a design apparatus for an electrical automation system, comprising:

[0028] The data acquisition unit acquires the data required to generate the electrical automation system based on the design requirements of the electrical automation system. The required data includes data on electrical equipment involved in the electrical automation system, a list of control points determined based on control principles, environmental parameters, performance design parameters of the electrical automation system, equipment selection parameters, and basic electrical data.

[0029] The electrical component selection unit, based on the required data and preset verification rules, determines the electrical components, automatic control components, and the selection of each component required for the electrical automation system;

[0030] The cable determination unit determines the number of control cable cores required for the electrical part based on the determined electrical components and their specifications; and determines the number of control cable cores required for the automatic control part based on the control point list.

[0031] The document output unit integrates the electrical components, automatic control components, and component selections with the number of cores in the control cable to form a delivery document set for electrical automation system design, as well as a design document capable of generating electrical automation system diagrams; the delivery document set contains various types of information required to generate the electrical automation system.

[0032] A third aspect of this application provides an electronic device, including: a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the above-described method.

[0033] A fourth aspect of this application provides a storage medium, comprising: storing a program or instructions on the storage medium, wherein the program or instructions, when executed by a processor, implement the steps of the above-described method.

[0034] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0035] This application embodiment obtains multi-source data required for generating an electrical automation system. Based on this multi-source data, it determines the electrical components required for the electrical part, the automatic control components required for the automatic control part, and the specifications of each component (automatic control component and electrical component). Based on this, it further determines the number of control cable cores for the electrical part and the automatic control part. Since the selection of the number of control cable cores is based on each component and its specifications, the selected number of control cable cores can be adapted to the components required by the electrical automation system. Thus, when integrating the electrical part and the automatic control part, various documents that meet the design requirements can be quickly generated, improving the design efficiency of the electrical automation system. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0037] Figure 1 A flowchart illustrating a design method for an electrical automation system provided in this application embodiment;

[0038] Figure 2 A flowchart illustrating a specific implementation of a design method for an electrical automation system provided in this application embodiment;

[0039] Figure 3 A schematic diagram of the structure of the design device for the electrical automation system provided in the embodiments of this application;

[0040] Figure 4 This is a schematic diagram of the structure of a computing device provided in an embodiment of this application. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. The illustrative embodiments and descriptions of this invention are for explanation only and are not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0042] As will be known to those skilled in the art, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0043] The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, product, or apparatus.

[0044] Example 1

[0045] Embodiment 1 of this application provides a design method for an electrical automation system to solve the problem of low design efficiency in existing electrical automation systems.

[0046] The subject executing this method can be any computing device capable of implementing the method, such as a server, mobile phone, personal computer, smart wearable device, smart robot, etc.

[0047] Furthermore, the embodiments of this application do not limit the execution order of different steps. When using the method provided in the embodiments of this application, the execution order of different steps can be adjusted according to actual needs.

[0048] For ease of description, the following uses a design device for an electrical automation system as the subject of this method to provide a detailed description of the method provided in this application embodiment.

[0049] like Figure 1 The diagram shown is a flowchart illustrating the specific implementation of a design method for an electrical automation system provided in this application, including the following steps 11-14:

[0050] Step 11: Based on the design requirements of the electrical automation system, obtain the data required to generate the electrical automation system.

[0051] Design requirements can be a requirements document that is used to design electrical automation systems and is determined based on project goals, application scenarios, technical standards, etc. It includes design objectives, constraints, performance indicators, delivery standards, etc.

[0052] The required data includes data on electrical equipment involved in the electrical automation system, a list of control points determined based on control principles, environmental parameters, performance design parameters of the electrical automation system, equipment selection parameters, and basic electrical data.

[0053] The electrical equipment data includes information such as equipment name, model, power, power factor, demand factor, distribution distance, number and signal type of automatic control I / O (input / output) points, and cable length;

[0054] Environmental parameters refer to the environmental parameters of the environment in which the electrical automation system is located after it is put into use, including temperature, altitude, soil thermal resistivity, air humidity, etc.

[0055] Performance design parameters include design parameter data for electrical automation systems, specifically including voltage level, frequency, ground fault sensitivity coefficient, circuit breaker operating error coefficient, and allowable voltage deviation.

[0056] Equipment selection parameters include the rated performance indicators and compatibility range of various power distribution and control equipment (components). These parameters are used to select suitable equipment based on the actual load and operating conditions of the project, ensuring safe and economical equipment operation. For example, circuit breaker selection parameters include rated current, breaking capacity, and operating characteristics; transformer selection parameters include rated capacity and impedance voltage.

[0057] Basic data includes fundamental data such as cables, transformers, and power distribution selection.

[0058] In one feasible implementation, this embodiment first constructs a basic database: cable data tables, transformer data tables, and power distribution selection tables are organized and determined as basic data for electrical automation design, forming a standardized basic database.

[0059] The database includes several key components: a cable data sheet containing parameters such as cable type, cross-sectional area, standard current carrying capacity, resistance per unit length, reactance per unit length, and shielding type; a transformer data sheet covering characteristic parameters such as transformer type, rated capacity, impedance voltage, no-load loss, short-circuit loss, and rated voltage; and a power distribution selection table listing selection parameters for components such as circuit breakers, contactors, thermal relays, frequency converters, and soft starters, including rated current, breaking capacity, operating characteristics, and applicable power range. This database allows users to add new component or cable model data promptly based on project requirements, ensuring data timeliness and completeness.

[0060] In step 11, based on design requirements and with reference to information from the basic database, the data required for designing the electrical automation system can be determined for the corresponding basic database parameters.

[0061] All of the above data can be stored in tabular form. For example, Table 1 provides partial cable data, and Table 2 provides partial transformer data.

[0062] Table 1, Partial Cable Data Sheet:

[0063]

[0064] Table 2, Partial Transformer Data:

[0065]

[0066] Step 12: Based on the required data and the preset verification rules, determine the electrical components, automatic control components and selection of each component required for the electrical automation system.

[0067] In the specific implementation of this step, the data obtained in step 11 is first preprocessed and validated. Preprocessing includes format conversion, missing value filling, and outlier identification of the required data; data validation includes verifying the integrity, rationality, and correlation between data based on pre-set data validation rules, and outputting and displaying the abnormal data identified in the validation in real time.

[0068] The transformer capacity is determined through the following steps 1201-1202:

[0069] Step 1201: Based on the electrical equipment data and performance design parameters, determine the load values ​​for different power distribution rooms and different load levels.

[0070] Specifically, it is based on information such as equipment name, installed capacity, power factor, demand factor, distribution room number, and load level in the electrical equipment data; among which, the distribution room information may include the distribution room number, and the load level information may include first-level load, second-level load, third-level load, and fire-fighting second-level load, etc.

[0071] The load value can be calculated as follows: active power is determined based on the usage capacity and demand factor; apparent power is determined based on active power and power factor; reactive power is determined based on apparent power and active power.

[0072] Based on step 1202: Based on the determined load value and the preset transformer operating mode and load rate, determine the required transformer capacity.

[0073] Transformers can be operated in three modes: single unit operation, two units operating in parallel, and one unit in use and one unit on standby.

[0074] In single-unit operation, the transformer capacity is determined by the ratio of apparent power to load rate.

[0075] When two transformers are operating in parallel, the capacity S of a single transformer in the two parallel-operating transformers is determined by the following formula:

[0076] S = P / (2 × load rate × (1 - redundancy rate)), where P is the apparent power of the transformer, and the redundancy rate is usually selected as 10%-15%.

[0077] When operating in a one-in-one-out-of-service mode, the capacity of each transformer = compensated apparent power × 1.2.

[0078] For the transformer capacity under each of the above-determined operating modes, the closest specification larger than the calculated value is selected from the standard capacity series based on the basic data.

[0079] In a specific implementation scenario, if there are long-term loads in the electrical automation system, the near-term and long-term loads are combined in the calculation of the load value for the distribution room containing the long-term loads to ensure that the transformer capacity can meet the long-term load requirements; when calculating the transformer capacity, it is determined according to the combined load to ensure that the long-term requirements are met.

[0080] Among them, long-term load refers to the total load demand of the electrical system at a specific long-term time node (usually 3-10 years, such as "5 years after the project is completed") based on the project's future development plan (such as capacity expansion, new equipment, and functional upgrades).

[0081] Component selection is determined in the following way: based on the electrical equipment data, the performance design parameters and equipment selection parameters, suitable candidate components are selected from the electrical basic data; the performance of the candidate components is verified, and the component selection that meets the performance requirements is selected from the candidate components.

[0082] For the selection of electrical cable specifications, the process is determined through steps 1211-1212:

[0083] Step 1211: Based on the electrical equipment data and the environmental parameters, select suitable candidate cable specifications from the electrical basic data;

[0084] Based on data such as distribution distance, operating current, and power factor from the electrical equipment data, as well as environmental parameters such as temperature correction factor, soil thermal resistance correction factor, and laying method correction factor, suitable candidate cable specifications are selected from the basic data. Specifically, candidate cable specifications are determined based on parameters such as cable cross-sectional dimensions, standard current carrying capacity, resistance per unit length, and reactance per unit length.

[0085] Step 1212: Determine the required cable specifications by verifying the current carrying capacity and voltage drop of the candidate cables.

[0086] In this step, pandas vectorized operations are used to perform batch operations in array form to improve computational efficiency.

[0087] Current carrying capacity verification is performed based on the cable's location (air or soil).

[0088] When laying overhead, the corrected current carrying capacity is the product of the reference current carrying capacity, the laying coefficient, and the temperature correction coefficient; the temperature correction coefficient is determined based on the air temperature of the actual laying space.

[0089] When laid in soil, the corrected current carrying capacity is the product of the reference current carrying capacity, the radiation coefficient, and the soil thermal resistance correction coefficient. Soil thermal resistance correction coefficient: when the soil thermal resistance coefficient is 1.5 (relatively dry), the value is 1.0; when the soil thermal resistance coefficient is 2 (dry), the value is 0.94; when the soil thermal resistance coefficient is 3 (very dry), the value is 0.81.

[0090] Voltage drop verification: Voltage drop = Operating current × Distribution distance × (Unit resistance × cos +Unit inductive impedance × sin ), where cos For the power factor, sin = .

[0091] In a specific implementation scenario, such as a two-level power distribution system, voltage drop calculation needs to consider the cumulative voltage drop of the two-level cables: when the distribution cabinet is a two-level distribution cabinet, the impedance transfer of the upper-level cable needs to be considered; for the secondary power distribution outgoing line, the voltage deviation at the end of the cable is equal to the sum of the voltage deviation at the beginning of the cable and the voltage deviation of the current level cable.

[0092] To reasonably distribute voltage drops, this embodiment sets different voltage deviation limits for different levels of power distribution: when the main power distribution circuit includes secondary power distribution or the incoming line of the secondary power distribution cabinet, the voltage deviation limit is considered based on 70% of the voltage drop; the voltage deviation limit for the outgoing line of the secondary power distribution is considered based on 30% of the voltage drop. These deviation limits can be adjusted in the design performance parameters.

[0093] For example, assume the system parameters include: transformer secondary voltage: 400V; primary distribution cable voltage drop: 5V (must be less than 70% of the total allowable voltage drop); secondary distribution cable voltage drop: 2V (accounting for 30% of the total allowable voltage drop).

[0094] The calculation process for the corresponding voltage drop is as follows: Transformer output voltage: 230V (adjustable in performance parameters); Voltage after primary distribution cable: 230V - 5V = 225V; Secondary distribution cabinet input voltage: 225V; Voltage after secondary distribution cable: 225V - 2V = 223V; Terminal equipment voltage: 223V. Total voltage drop: 230V - 223V = 7V. Therefore, the equipment terminal voltage is 230V - 7V = 223V, which deviates from the rated voltage of 220V (adjustable in performance parameters) of general equipment by +1.36%, meeting the ±5% voltage deviation requirement of general equipment.

[0095] In one feasible implementation, step 1211 involves selecting an electrical cable specification from the basic data and performing the verification in step 1212. If the specification does not meet the verification rules, the cable specification is upgraded, and the verification is repeated until an electrical cable specification that meets the verification rules is selected.

[0096] A specific example of electrical cable selection:

[0097] Assume the following parameters for a motor: operating capacity: 55 kW, operating current: 100 A, power factor: 0.85, cable length: 50 m, laying method: air-laid CT, ambient temperature: 35℃;

[0098] Based on a calculated current of 100A, a 3×25+1×16 mm² cable is initially selected.

[0099] Current carrying capacity correction:

[0100] Baseline current carrying capacity (3×25+1×16): 120 A;

[0101] Laying coefficient: 0.9 (CT laying);

[0102] Temperature correction factor: 0.96;

[0103] The corrected current carrying capacity is 120 × 0.9 × 0.96 = 103.68 A.

[0104] Voltage deviation calculation:

[0105] Cable resistance: 0.87 Ω / km, inductive reactance: 0.08 Ω / km;

[0106] A 50m resistor has a resistance of 0.87 × 0.05 = 0.0435 Ω.

[0107] 50m inductive reactance = 0.08 × 0.05 = 0.004 Ω;

[0108] sin = = 0.527;

[0109] Voltage deviation = 100 × (0.0435 × 0.85 + 0.004 × 0.527) = 3.9 V;

[0110] Voltage deviation percentage = (230 - 220 - 3.9) / 220 × 100% = +2.77%.

[0111] Verification rule matching:

[0112] Does the current carrying capacity of 103.68 A exceed the calculated current of 100 A? If no, the cable does not meet the initial selection criteria.

[0113] The cable specification needs to be upgraded to 3×35+1×16 mm². Repeat the calculation until the condition is met.

[0114] Cable specifications are automatically selected through iterative calculations to ensure that both current carrying capacity and voltage deviation requirements are met.

[0115] In a specific implementation, if the component is a circuit breaker, the determination of the circuit breaker selection includes: selecting suitable circuit breaker specifications from the basic data based on the equipment power and operating current of the electrical components, such as selecting a circuit breaker whose rated current is greater than or equal to 1.2 times the operating current; and calculating the three-phase short-circuit current (system rated voltage and...) using the symmetrical component method. The ratio of the short-circuit point to the total impedance is used to verify the breaking capacity of the circuit breaker, the thermal stability of the cable, and to determine the selection of auxiliary circuit protection components; the specifications of the circuit breaker that pass the verification are selected.

[0116] The circuit breaker breaking capacity is determined by querying and calculating the transformer impedance + cable impedance (including phase protection impedance, including the impedance superposition of secondary power distribution, ignoring the bus impedance) based on the given short-circuit capacity in the performance design parameters, and determining the corresponding three-phase short-circuit current and single-phase ground fault current. This is used to select the circuit breaker breaking capacity and type (molded case and miniature circuit breaker), and to verify the ground fault. If the requirements are not met, a residual current circuit breaker is used.

[0117] Step 13: Based on the determined electrical components and their specifications, determine the number of control cable cores required for the electrical part; based on the control point list, determine the number of control cable cores required for the automatic control part.

[0118] The determination of the required number of control cable cores for the automatic control section, based on the control point list, includes:

[0119] The number of input and output interfaces, signal types, and component reference numbers of the required automatic control components are integrated to generate an input / output point list; based on the input / output point list and the control point list, the number of control cable cores required for the automatic control section is determined.

[0120] In one feasible implementation, a connection table to the terminals of the automatic control cabinet is also determined based on the control point list.

[0121] Automatic control cabinets are dedicated cabinets in electrical and automatic control systems that centrally install core automatic control equipment, realize centralized signal processing, and issue control commands. They are key hubs connecting field equipment and the upper control layer, and their core functions are to integrate automatic control I / O points, unify the management of control logic, and ensure stable signal transmission.

[0122] The coding rules define a unified set of rules for equipment tag numbers and cable numbers to ensure that equipment and cable identifications are unique and easy to manage. Equipment tag numbers adopt the format of "area number-equipment type code-serial number" (e.g., "01SM01" represents the first circuit breaker in distribution room 1); cable numbers adopt the format of "function code-end equipment tag number" (e.g., "EP-01SM01" represents the power cable to equipment 01SM01).

[0123] Step 14: Integrate the electrical components, automatic control components, and component selections with the number of cores in the control cable to form a delivery document set for electrical automation system design, as well as a design document capable of generating electrical automation system diagrams; the delivery document set contains various types of information required to generate the electrical automation system.

[0124] The delivery document set contains various types of information required to generate the electrical automation system, specifically including load calculation tables, equipment lists, cable lists, automatic control system I / O tables, and equipment and automatic control cabinet terminal connection tables; wherein the load calculation table includes the calculated loads, the equipment list includes the selected components and their specifications, and the cable list includes the selected cables and their specifications.

[0125] The delivered documents can be in Excel format, while the design documents can be documents that support direct drawing with CAD or other drafting software.

[0126] like Figure 2 As shown, in a specific implementation, the design method includes: inputting the data required for generating the electrical automation system and verifying the input data; performing load calculation and statistics based on the input data to determine the transformer capacity selection; performing preliminary selection and verification of cables based on the input data, including current carrying capacity verification and voltage drop verification, or if the verification fails, upgrading the cable specifications and re-verifying; if the verification passes, performing short-circuit current calculation to determine the component configuration and selection; performing automatic system design and generating reports and outputs.

[0127] This application embodiment obtains multi-source data required for generating an electrical automation system. Based on this multi-source data, it determines the electrical components required for the electrical part, the automatic control components required for the automatic control part, and the specifications of each component (automatic control component and electrical component). Based on this, it further determines the number of control cable cores for the electrical part and the automatic control part. Since the selection of the number of control cable cores is based on each component and its specifications, the selected number of control cable cores can be adapted to the components required by the electrical automation system. Thus, when integrating the electrical part and the automatic control part, various documents that meet the design requirements can be quickly generated, improving the design efficiency of the electrical automation system.

[0128] Example 2:

[0129] To address the problem of low design efficiency in existing electrical automation systems, and based on the same inventive concept as Embodiment 1, this application also provides a design apparatus for an electrical automation system.

[0130] A schematic diagram of the specific structure of the device is shown below. Figure 3 As shown, it includes the following functional units 31-34:

[0131] The data acquisition unit 31 acquires the data required to generate the electrical automation system based on the design requirements of the electrical automation system. The required data includes data on electrical equipment involved in the electrical automation system, a list of control points determined based on control principles, environmental parameters, performance design parameters of the electrical automation system, equipment selection parameters, and basic electrical data.

[0132] The electrical component selection unit 32 determines the electrical components, automatic control components, and component selection required for the electrical automation system based on the required data and preset verification rules.

[0133] The cable determination unit 33 determines the number of control cable cores required for the electrical part based on the determined electrical components and their specifications; and determines the number of control cable cores required for the automatic control part based on the control point list.

[0134] The document output unit 34 integrates the electrical components, automatic control components, and the selection of each component with the number of cores in the control cable to form a delivery document set for the design of the electrical automation system, as well as a design document capable of generating an electrical automation system diagram; the delivery document set contains various types of information required to generate the electrical automation system.

[0135] When determining transformer capacity, the electrical component selection unit is specifically used to: determine the load values ​​for different distribution rooms and different load levels based on the data and performance design parameters of the electrical equipment; and determine the required transformer capacity based on the determined load values ​​and the preset transformer operating mode and load rate.

[0136] When determining electrical cable specifications, the electrical component selection unit is specifically used to: select suitable candidate cable specifications from the basic data based on the electrical equipment data and the environmental parameters; and determine the required cable specifications by verifying the current carrying capacity and voltage drop of the candidate cable specifications.

[0137] The electrical component selection unit is used to determine the selection of electrical components, specifically for: selecting suitable candidate components from the electrical basic data based on the electrical equipment data, the performance design parameters, and the equipment selection parameters; performing performance verification on the candidate components; and selecting the component that meets the performance requirements from the candidate components.

[0138] When the electrical component is a circuit breaker, the electrical component selection unit is specifically used to: select suitable circuit breaker specifications from the electrical basic data based on the equipment power and operating current of the electrical part; calculate the three-phase short-circuit current using the symmetrical component method to verify the breaking capacity of the circuit breaker and determine the selection of auxiliary circuit protection components; and select the circuit breaker specifications that have passed the verification.

[0139] The cable determination unit is specifically used to integrate the number of input interfaces and output interfaces, signal types, and control element tag numbers of the required automatic control components to generate an input / output point list; based on the input / output point list and control point list, it determines the number of control cable cores required for the automatic control section.

[0140] The design apparatus of this embodiment also includes a database construction unit, specifically used to construct a basic database; the basic database contains basic data of various components used for the design of electrical automation systems; the various components include electrical cables, control cables, transformers and power distribution components.

[0141] This application embodiment obtains multi-source data required for generating an electrical automation system. Based on this multi-source data, it determines the electrical components required for the electrical part, the automatic control components required for the automatic control part, and the specifications of each component (automatic control component and electrical component). Based on this, it further determines the number of control cable cores for the electrical part and the automatic control part. Since the selection of the number of control cable cores is based on each component and its specifications, the selected number of control cable cores can be adapted to the components required by the electrical automation system. Thus, when integrating the electrical part and the automatic control part, various documents that meet the design requirements can be quickly generated, improving the design efficiency of the electrical automation system.

[0142] like Figure 4 As shown, the computing device includes a memory 41 and a processor 42. The memory 41 can be configured to store various other data to support operation on the electronic device. Examples of such data include instructions for any application or method used to operate on the electronic device. The memory 41 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0143] The processor 42, coupled to the memory 41, is used to execute the computer program stored in the memory 41 to perform the design method of an electrical automation system described in the foregoing embodiments.

[0144] When the processor 42 executes the computer program to perform a design method for an electrical automation system, it acquires multi-source data required to generate the electrical automation system, and determines the electrical components required for the electrical part, the automatic control components required for the automatic control part, and the specifications of each component (automatic control component and electrical component) based on the multi-source data. Based on this, it further determines the number of control cable cores (control cable core count) for each of the electrical part and the automatic control part. Since the selection of the control cable core count is based on the components and component specifications, the selected control cable core count can be adapted to the components required by the electrical automation system. Thus, when integrating the electrical part and the automatic control part, various documents that meet the design requirements can be quickly generated, improving the design efficiency of the electrical automation system.

[0145] When the processor 42 executes the computer program in the memory 41, in addition to the functions described above, it can also perform other functions, as detailed in the descriptions of the preceding embodiments.

[0146] Furthermore, such as Figure 4 As shown, the computing device also includes other components such as a display 44, a communication component 43, a power supply component 45, and an audio component 46. Figure 4 The diagram only shows some components and does not mean that the computing device includes only these components. Figure 4 The components shown.

[0147] Accordingly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a computer, can implement the methods provided in the above embodiments.

[0148] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0149] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments.

[0150] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method of designing an electrical automation system, characterized by, include: Based on the design requirements of the electrical automation system, obtain the data needed to generate the electrical automation system; The required data includes data on electrical equipment involved in the electrical automation system, a list of control points determined based on control principles, environmental parameters, performance design parameters of the electrical automation system, equipment selection parameters, and basic electrical data. Based on the required data and the preset verification rules, determine the electrical components, automatic control components, and the selection of each component required for the electrical automation system; Based on the determined electrical components and their specifications, determine the number of control cable cores required for the electrical components; Based on the control point list, determine the number of control cable cores required for the automatic control section; The electrical components, automatic control components, and the selection of each component are integrated with the number of cores in the control cable to form a delivery document set for electrical automation system design, as well as a design document that can generate electrical automation system diagrams; The delivery document set contains various types of information required to generate the electrical automation system.

2. The method of claim 1, wherein, The electrical components include transformers, and the transformer capacity is selected in the following way: Based on the data of electrical equipment and performance design parameters, determine the load values ​​for different power distribution rooms and different load levels; Based on the determined load value and the preset transformer operating mode and load rate, the required transformer capacity is determined.

3. The method of claim 1, wherein, The selection of the components is determined in the following way: Based on the electrical equipment data, the performance design parameters, and the equipment selection parameters, suitable candidate components are selected from the electrical basic data; The performance of the candidate components is verified, and the components that meet the performance requirements are selected from the candidate components.

4. The method of claim 3, wherein, The component selection includes the selection of electrical cables, which are determined in the following ways: Based on the electrical equipment data and the environmental parameters, suitable candidate cable specifications are selected from the electrical basic data; The required electrical cable specifications are determined by verifying the current carrying capacity and voltage drop of the candidate cables.

5. The method of claim 3, wherein, The component selection includes circuit breaker selection, which is determined in the following ways: Based on the power and operating current of the electrical equipment, select suitable circuit breaker specifications from the aforementioned electrical basic data; The symmetrical component method is used to calculate the three-phase short-circuit current in order to verify the breaking capacity of the circuit breaker and determine the selection of components for auxiliary circuit protection. Select the circuit breaker specifications that have passed the verification.

6. The method of claim 1, wherein, Based on the control point list, determine the number of control cable cores required for the automatic control section, including: The required number of input and output interfaces, signal types, and component reference numbers of the automatic control components are integrated to generate a list of input and output points; Based on the input / output point list and control point list, determine the number of control cable cores required for the automatic control section.

7. The method of claim 1, wherein, The method further includes: constructing a basic database containing basic data of various components used in the design of electrical automation systems; the various components include electrical cables, control cables, transformers, and power distribution and control components.

8. A design device of an electric automation system, characterized by, include: The data acquisition unit acquires the data required to generate the electrical automation system based on the design requirements of the electrical automation system. The required data includes data on electrical equipment involved in the electrical automation system, a list of control points determined based on control principles, environmental parameters, performance design parameters of the electrical automation system, equipment selection parameters, and basic electrical data. The electrical component selection unit, based on the required data and preset verification rules, determines the electrical components, automatic control components, and the selection of each component required for the electrical automation system; The cable determination unit determines the number of control cable cores required for the electrical components based on the identified electrical components and their specifications. Based on the control point list, determine the number of control cable cores required for the automatic control section; The document output unit integrates the electrical components, automatic control components, and component selections with the number of cores in the control cable to form a delivery document set for electrical automation system design, as well as a design document capable of generating electrical automation system diagrams. The delivery document set contains various types of information required to generate the electrical automation system.

9. An electronic device, comprising: include: A processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as claimed in any one of claims 1-7.

10. A storage medium, characterized by include: The storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1-7.

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