Secondary intelligent device model selection method based on automatic identification and intelligent analysis

Abstract

The present invention discloses a secondary intelligent device model selection method based on automatic identification and intelligent analysis. The method defines the file identifier of the ICD model file, creates an ICD model file library for the intelligent substation, and determines the standard ICD model model and file identifier of the ICD model file; creates an intelligent substation engineering design information table, defines the engineering design information of the intelligent substation engineering design information table; automatically selects the ICD model files in the ICD model file library based on the intelligent substation engineering design information table, automatically generates an IED device list based on the matching ICD model files, automatically configures the IED name and IED description, and integrates the SCD file. The method proposed by the present invention can significantly improve the integration efficiency and quality of intelligent substations, providing a reference for the development and construction of intelligent substations.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent substation operation and maintenance, and in particular to a secondary intelligent device model selection method based on automatic identification and intelligent analysis. Background Art

[0002] The substation configuration description (SCD) is the core of smart substation application and management. The SCD file contains all information about intelligent electronic devices (IEDs), including communication types, parameters, control blocks, and inter-device connections. As the input source for various IEDs in a smart substation, its configuration efficiency and accuracy directly impact the commissioning progress of the smart substation and the safe and stable operation of the power grid. Currently, SCD files are generated by power design institutes based on relevant technical specifications such as the planned smart substation construction scale, voltage level, and wiring configuration. These files provide design drawings and SCD configuration files to guide smart substation construction and equipment commissioning. SCD configuration is typically completed independently by a single design institute designer or integrator engineer, making it difficult to split the work among multiple individuals. This results in a high workload and low efficiency, particularly under time pressure. There is an urgent need to shift from manually integrating SCD configuration files to automatically generating SCD files. This automated SCD generation relies on the automated selection of secondary device models. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and provide a secondary intelligent device model selection method based on automatic identification and intelligent analysis. Based on a complete ICD template file library, the target ICD is automatically identified and the IED configuration is automatically performed, thereby laying the foundation for the automatic generation of SCD files.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The secondary intelligent device model selection method based on automatic identification and intelligent analysis includes the following steps:

[0006] Step 1: Define the file identifier of the ICD model file, create an ICD model file library for the smart substation, and determine the standard ICD model model and file identifier of the ICD model file;

[0007] Step 2: Create a smart substation engineering design information table and define the engineering design information of the smart substation engineering design information table;

[0008] Step 3: Automatically select the ICD model files in the ICD model file library based on the smart substation engineering design information table, automatically generate an IED device list based on the matching ICD model files, automatically configure the IED name and IED description, and integrate the SCD file.

[0009] The file identifier of the ICD model file in step 1 above includes:

[0010] The first type of file identification: manufacturer, model information, and version;

[0011] The second type of file identification: check code;

[0012] The third category of file identification: adapted substation type, adapted voltage level, adapted wiring method, adapted interval, adapted equipment type, adapted sampling method, and optional function information.

[0013] As mentioned above, the standard ICD model types of the ICD model file are A1-A2A3A4-A5A6-A7-A8, where A1 represents the manufacturer platform number, A2 represents the manufacturer serial number, A3 represents the basic model, A4 represents the voltage level, A5 represents the substation type, A6 represents the sampling method, A7 represents the region, and A8 represents the optional model.

[0014] For an ICD model file whose model information is standard information, that is, the model information is manufacturer platform number-(manufacturer serial number+basic model)-(substation type+sampling method)-region-version-check code, determining the standard ICD model of the ICD model file includes the following steps:

[0015] For the ICD model file whose model information is manufacturer platform number-(manufacturer serial number + basic model)-(substation type + sampling method)-region-version-check code,

[0016] The manufacturer's platform number is assigned to A1 of the standard ICD model type in the ICD model file;

[0017] The manufacturer's serial number is assigned to A2 of the standard ICD model type in the ICD model file;

[0018] The basic model is assigned to A3 of the standard ICD model in the ICD model file;

[0019] Empty value is assigned to A4 of the standard ICD model type in the ICD model file;

[0020] The substation type is assigned to A5 of the standard ICD model type in the ICD model file;

[0021] The sampling mode is assigned to A6 of the standard ICD model type in the ICD model file;

[0022] The region is assigned to A7 of the standard ICD model type in the ICD model file;

[0023] Null value is assigned to A8 of the standard ICD model number in the ICD model file.

[0024] For non-standard model information,

[0025] The information before the first symbol of the model information of the ICD model file is the information of Zone 1;

[0026] The information between the first symbol and the second symbol of the model information of the ICD model file is the information of zone 2;

[0027] The information between the second symbol and the third symbol of the model information of the ICD model file is the information of zone 3;

[0028] The information between the third symbol and the fourth symbol of the model information of the ICD model file is the information of zone 4;

[0029] The information between the fourth symbol - and the fifth symbol - of the model information of the ICD model file is the fifth zone information, or there is only the fourth symbol - but no fifth symbol -, and the information after the fourth symbol - is the fifth information;

[0030] The first area of ​​the model information of the ICD model file is directly assigned to the parameter A1 of the standard ICD model;

[0031] When the last character of the information in Area 2 is a number 1, 2, 3, 5, 7, 0 or the character L, the last character of the information in Area 2 is assigned to parameter A4 of the standard ICD model, the second-to-last character of the information in Area 2 is assigned to parameter A3 of the standard ICD model, and all characters from the first character to the third-to-last character of the information in Area 2 are assigned to parameter A2 of the standard ICD model;

[0032] If the last digit is not 1, 2, 3, 5, 7, 0 or L, the last digit of the information in Area 2 is assigned to parameter A3 of the standard ICD model. Then, all characters from the first to the second-to-last digit of the information in Area 2 are assigned to parameter A2 of the standard ICD model. Parameter A4 of the standard ICD model is left blank.

[0033] The first character of the information in the third area is assigned to parameter A5 of the standard ICD model type, and the second character of the information in the third area is assigned to parameter A6 of the standard ICD model type. If the information in the third area contains only one character, parameter A6 is empty.

[0034] The information in zone 4 is directly assigned to parameter A7 of the standard ICD model;

[0035] The information in Area 5 is assigned bit by bit to parameter A8 of the standard ICD model.

[0036] The engineering design information includes:

[0037] Design basic information of substation: including substation type, voltage level, and wiring method;

[0038] Design substation bay information: including bay type, bay name, bay serial number, and device configuration. The device configuration includes the number of protection units, intelligent terminals, merging units, and acquisition execution units configured in this bay.

[0039] Design device information within the substation bay, including manufacturer, optional functions, and sampling methods.

[0040] Step 3 as described above includes the following steps:

[0041] Step 3.1: Generate a list of secondary equipment for the entire station based on the bay type and device configuration in the smart substation engineering design information table;

[0042] Step 3.2: Based on the engineering design information, assign engineering design information to each IED in the entire station secondary device list, including: substation type, voltage level, wiring method, bay type, device type, bay name, set, manufacturer, optional function, and sampling method;

[0043] Step 3.3: For the engineering design information of the IED, generate the standard model information of the IED according to the standard ICD model model rules of the ICD model file;

[0044] Step 3.4, based on the standard model information of the IED, adapt the standard ICD model model of the ICD model file, and select an ICD model file that matches the standard model information of the IED from the ICD model file library;

[0045] Step 3.5: Automatically configure the IED name and description based on the IED voltage level, bay type, device type, bay name, and suite, and integrate the SCD file.

[0046] A computer device includes a memory and a processor, wherein the memory stores a computer program, and is characterized in that the processor implements the steps of the above-mentioned selection method when executing the computer program.

[0047] A computer-readable storage medium stores a computer program, which implements the steps of the above-mentioned selection method when executed by a processor.

[0048] A computer program product includes a computer program, which implements the steps of the above-mentioned selection method when executed by a processor.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] This invention lays the foundation for the automated generation of SCD configuration files for smart substations. By automatically selecting a target ICD from an ICD model library and identifying its manufacturer, model, version, checksum, and other information, it enables automatic configuration of the IED name and description. Compared with traditional manual SCD file integration methods, this proposed method significantly improves the efficiency and quality of smart substation integration, providing a reference for the development and construction of smart substations. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a structural diagram of the standard ICD model.

[0052] Figure 2 A diagram showing some file identifiers for an ICD model file.

[0053] Figure 3 Flowchart of the present invention. DETAILED DESCRIPTION

[0054] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0055] The present invention proposes a secondary intelligent device model selection method based on automatic parameter recognition and intelligent analysis, such as Figure 2 As shown:

[0056] Step 1: Define the file identifier of the ICD model file, create an ICD model file library for a smart substation, and determine the standard ICD model type and file identifier of the ICD model file.

[0057] The created ICD model file library has the following characteristics:

[0058] The ICD model file library is used to store and manage ICD model files of various types of devices from various secondary equipment manufacturers. Each ICD model file in the ICD model file library should contain the manufacturer, model model information, version, check code, adapted substation type, adapted voltage level, adapted wiring method, adapted interval, adapted device type, adapted sampling method, and optional function information. The above information serves as the file identifier of each ICD model file.

[0059] The classification and assignment method of the file identifier of the ICD model file are as follows:

[0060] The first type of file identifier: manufacturer, model information, and version, which are directly extracted from the ICD model file. Specifically, the type, manufacturer, and configVersion of the IED under SCL in the ICD model text are read, where type is the model information, manufacturer is the manufacturer, and configVersion is the version.

[0061] The second type of file identifier: the check code is extracted from the ICD model file name. If there is no check code in the name, the ICD model text will be subjected to full text MD5 calculation. The check code serves as the unique identifier of the ICD model file in the ICD model file library.

[0062] The third type of file identifiers includes: adapted substation type, adapted voltage level, adapted wiring method, adapted interval, adapted device type, adapted sampling method, and optional function information. The specific values ​​of the third type of file identifiers are generated based on the first type of rule base and the first type of file identifiers. This can be summarized as follows: defining the first type of rule base, and then instantiating the third type of file identifiers through algorithmic induction based on the first type of file identifiers covered by the first type of rule base, namely, the manufacturer, model information, and version of the ICD model file. A more detailed process and implementation examples are provided below.

[0063] The first type of rule base refers to the standard ICD model type that defines the standard ICD model file:

[0064] A1-A2A3A4-A5A6-A7-A8, A1, A2, A3, A4, A5, A6, A7, and A8 are all parameters, where A1 represents the manufacturer platform number, A2 represents the manufacturer serial number, A3 represents the basic model, A4 represents the voltage level, A5 represents the substation type, A6 represents the sampling method, A7 represents the region, and A8 represents the optional model. Further, through algorithm induction, all known ICD model files are matched with the standard ICD model model to form the standard ICD model model of the specific ICD model file under the standard ICD model model system.

[0065] Each specific identification object in the third category file identification can be described by the first category rule base in a rule-based manner as to the relationship between it and the standard ICD model model parameter value of the ICD model file. According to this relationship, any specific ICD model file, under the condition that its standard ICD model model parameter value is known, obtains the third category file identification based on the first category rule base.

[0066] Specifically, there is the following relationship between the third type of file identifier and the standard ICD model parameters:

[0067] Applicable substation type: determined by all or part of A5 and A7;

[0068] Adaptive voltage level: determined by all or part of A1, A2, A3, and A4;

[0069] Adaptive wiring mode: determined by all or part of A1, A2, and A3;

[0070] Adaptation interval: determined by all or part of A1, A2, and A3;

[0071] Applicable device type: determined by all or part of A1, A2, and A3;

[0072] Adaptive sampling mode: determined by A6;

[0073] Optional function information: Determined by A8.

[0074] Preferably, the first inductive algorithm is used for the ICD model file, where the model information is the standard ICD model information, that is, the model information is manufacturer platform number-(manufacturer serial number + basic model)-(substation type + sampling method)-region-version-check code:

[0075] Based on statistical methods, known ICD model files are enumerated. Combined with the secondary equipment manufacturer information, the model information in the ICD model file is split into key information to form a standard ICD model model for a specific ICD model file.

[0076] For example, given the ICD model file WDLK-862A-DG-N-V1.02-C874A660.icd, the A1-A2A3A4-A5A6-A7-A8 bits of the standard ICD model of WDLK-862A-DG-N-V1.02-C874A660.icd are directly enumerated as follows:

[0077] A1:WDLK

[0078] A2:862

[0079] A3:A

[0080] A4: Blank

[0081] A5:D

[0082] A6:G

[0083] A7:N

[0084] A8: Empty

[0085] In particular, the first induction algorithm is based on the meaning of the specific model information of the known ICD model file, and further enumerates the standard ICD model models, so that it is directly converted into a standard ICD model system. When the meaning of the specific model information of the ICD model file is unknown, the first induction algorithm is not applicable.

[0086] Preferably, the second inductive algorithm is used for the ICD model file whose model information is non-standard ICD model information:

[0087] Based on the general induction method, combined with the model model information of the actual ICD model file, several separator symbols - are identified in the model model information of the ICD model file, and the standard ICD model model under the standard ICD model model system of the ICD file model is divided into different information areas. The information before the first symbol - of the model model information of the actual ICD model file is the first area information, which corresponds to A1 of the standard ICD model model; the information between the first symbol - and the second symbol - of the model model information of the actual ICD model file is the second area information, which corresponds to A2A3A4 of the standard ICD model model; the actual ICD model file has a standard ICD model model system, and the standard ICD model model is divided into different information areas. The information between the second symbol - and the third symbol - of the model model information of the CD model file is the 3rd zone information, which corresponds to A5A6 of the standard ICD model; the information between the third symbol - and the fourth symbol - of the model model information of the actual ICD model file is the 4th zone information, which corresponds to A7 of the standard ICD model; the information between the fourth symbol - and the fifth symbol - of the model model information of the actual ICD model file is the 5th zone information, or there is only the fourth symbol - but no fifth symbol -, and the information after the fourth symbol - is the 5th information, which corresponds to A8 of the standard ICD model.

[0088] The first area information of the model information of the actual ICD model file is directly assigned to the parameter A1 of the standard ICD model.

[0089] The A1 values ​​and their meanings are enumerated as follows:

[0090] A1=PCS, indicating the ICD model file of NARI relay protection PCS series;

[0091] A1=CSC, indicating the ICD model file of Beijing Sifang CSC series;

[0092] A1=CSD, indicating the ICD model file of Beijing Sifang CSD series;

[0093] A1=NSR, indicating the ICD model file of NARI NSR series;

[0094] A1=PSL, indicating the ICD model file of the PSL series of GDN;

[0095] A1=SGB, indicating the ICD model file of the SGB series of GDN;

[0096] A1=WBH, indicating the ICD model file of XJ Electric WBH series;

[0097] A1=WMH, indicating the ICD model file of XJ Electric WMH series;

[0098] A1=WXH, indicating the ICD model file of XJ Electric WXH series;

[0099] The above enumeration enumerates all known ICD model files according to the actual secondary equipment manufacturer's product serial number naming rules.

[0100] The method for assigning information to zone 2 is as follows:

[0101] When the last character of the information in Area 2 is a number 1, 2, 3, 5, 7, 0, or the character L, the last character of the information in Area 2 is assigned to parameter A4 of the standard ICD model, and the second-to-last character of the information in Area 2 is assigned to parameter A3 of the standard ICD model. Continuously, all characters from the first to the third-to-last character of the information in Area 2 are assigned to parameter A2 of the standard ICD model.

[0102] The A4 values ​​and their meanings are enumerated as follows:

[0103] A4=1, indicating that the ICD model file is used for 110kV voltage level;

[0104] A4=2, indicating that the ICD model file is used for 220kV voltage level;

[0105] A4=3, indicating that the ICD model file is used for 330kV voltage level;

[0106] A4=5, indicating that the ICD model file is used for 500kV voltage level;

[0107] A4=7, indicating that the ICD model file is used for 750kV voltage level;

[0108] A4=0, indicating that the ICD model file is used for 1000kV voltage level;

[0109] A4=L, indicating that the model is used for voltage levels of 110kV and below.

[0110] If the last digit is not 1, 2, 3, 5, 7, 0, or the character L, the last digit of the information in Area 2 is assigned to parameter A3 of the standard ICD model. All characters from the first to the second-to-last digit of the information in Area 2 are then assigned to parameter A2 of the standard ICD model. Parameter A4 is left blank.

[0111] For parameter A2, first distinguish parameter A1 of the standard ICD model, and then enumerate parameter A2 and its meaning under different matching relationships of parameter A1.

[0112] For example:

[0113] When A1=PCS and A2=931, it means the ICD model file is used for equipment with voltage level of 220kV and above, bay type of line bay, and equipment type of protection;

[0114] When A1=PCS and A2=943, it means that the ICD model file is used for equipment with a voltage level of 110 kV, a bay type of line bay, and a device type of protection.

[0115] When A1=PCS and A2=915, it indicates that the ICD model file is used for the busbar bay type and the protection device type.

[0116] For parameter A3, first distinguish parameter A1 and parameter A2 of the standard ICD model, and then enumerate parameter A3 and its meaning under different matching relationships between parameter A1 and parameter A2.

[0117] For example:

[0118] When A1=PCS, A2=931, A3=A, it means the ICD model file is used for the basic model, A3=C, it means the standard ICD model is used for the 2M dual-fiber series compensation line;

[0119] When A1=PCS and A2=915, A3=A indicates that the ICD model file is used for double-mother, double-mother double-split, single-mother, and single-mother segmented wiring. A3=C indicates that the ICD model file is used for 3 / 2 wiring. A3=D indicates that the corresponding ICD model file is used for double-mother single-split and single-mother three-split wiring.

[0120] The method for assigning information to zone 3 is as follows:

[0121] The first character of the information in Area 3 is assigned to parameter A5 of the standard ICD model type, and the second character of the information in Area 3 is assigned to parameter A6 of the standard ICD model type. If the information in Area 3 contains only one character, parameter A6 is empty.

[0122] The A5 values ​​and their meanings are enumerated as follows:

[0123] A5=D, indicating that the model is used for GOOSE tripping;

[0124] A5=blank, indicating the model is for conventional cable tripping.

[0125] Parameter A6 and its meaning are enumerated as follows:

[0126] A6=G or blank, indicating that the ICD model file is used for conventional cable sampling;

[0127] A6=A, indicating that the ICD model file is used for digital SV sampling.

[0128] The information in zone 4 is directly assigned to parameter A7 of the standard ICD model.

[0129] The parameter A7 of the standard ICD model and its meaning are enumerated as follows:

[0130] A7=G, indicating that the model is used in the national grid area;

[0131] A7=N, indicating that the model is used in the Southern Power Grid area.

[0132] The method for assigning information to zone 5 is as follows:

[0133] The information in area 5 is assigned bit by bit to the parameter A8 of the standard ICD model, forming A8={A8 m}, that is, assign the mth character of the information in area 5 to A8m of the standard ICD model in sequence.

[0134] For A8, we first distinguish A1 and A2 of the model, and then enumerate A8 and its meaning under different matching relationships between A1 and A2.

[0135] For example:

[0136] When A1=PCS and A1=931, A81=R (when A8 has multiple optional models, A81 represents the first optional model, A82 represents the second optional model, and so on), indicating that the model corresponds to the device with zero-sequence inverse time overcurrent protection, A82=P, indicating that the model corresponds to the device with three-phase inconsistency protection, A83=L, indicating that the model corresponds to the device with overload protection, A84=Y, indicating that the model corresponds to the device with overvoltage and remote tripping protection, A85=K, indicating that the model corresponds to the device suitable for 3 / 2 wiring mode, and A86=D, indicating that the model corresponds to the device with impact loads suitable for electric railways, steel mills, etc.

[0137] The ICD model file library is formed by importing various ICD model files, specifically:

[0138] When the ICD model file is stored in the database, the information description in the ICD model file is extracted to obtain the first type file identifier and the second type file identifier, including: manufacturer, model information, version, and check code;

[0139] When the ICD model file is entered into the database, based on the enumeration relationship described in the first type of rule base, the third type of file identifier reflecting the adaptation information of the ICD model file is entered, including: adapted substation type, adapted voltage level, adapted wiring method, adapted interval, adapted equipment type, adapted sampling method, and optional function information.

[0140] According to the above method, the steps of storing the ICD model files described by the two types of information and assigning the file identification of the ICD model files are specifically described.

[0141] The model information of the first ICD model file WDLK-862A-DG-N-V1.02-C874A660.icd is as follows:

[0142] like Figure 2, extract the type (model information), manufacturer (manufacturer), and configVersion (version) of the IED (Intelligent Electronic Device) under SCL (Structured Control Language) in the ICD model file text definition, type = WDLK-862A-DG-N, manufacturer = XJDQ, and configVersion = V1.02. Then, the information description WDLK-862A-DG-N-V1.02-C874A660.icd in the ICD model file determines the manufacturer, model information, and version of the first type of file identification: the model information is WDLK-862A-DG-N, the manufacturer is XJDQ, and the version is V1.02. It should be noted that the specific example enumerated here is to facilitate professional and technical personnel working in this industry to better understand the file identification assigned to the ICD model file when the ICD model file is put into the database, and should not be used to limit the scope of application of this method.

[0143] The file CRC can be extracted from the name. That is, when the last symbol "-" in the model file name is followed by an 8-character string, it is determined to be a CRC. The check code of the second-type file identifier of the model model information WDLK-862A-DG-N-V1.02-C874A660.icd of the ICD model file is C874A660.

[0144] Based on the defined standard model system and two enumeration methods, the A1-A2A3A4-A5A6-A7-A8 values ​​corresponding to the model model information type=WDLK-862A-DG-N are A1=WDLK, A2=862, A3=A, A4=empty, A5=D, A6=G, A7=N, A8=empty. Combined with the first type of rule base and the first type of file identification, the third type of file identification of the ICD model file WDLK-862A-DG-N-V1.02-C874A660.icd is as follows: the adapted substation type is smart substation, the adapted voltage level is 220kV and above, the adapted wiring method is general, the adapted bay is circuit breaker, the adapted equipment type is protection, the adapted sampling method is conventional cable sampling, and the optional function information is empty.

[0145] The second model PCS-931A-DG-G-RYK.icd:

[0146] Extract the type, manufacturer, and configVersion of the IED under SCL in the text definition of the model file. If type = PCS-931A-DG-G-RYK, manufacturer = NRR, and configVersion = V6.02, then the first-class identifier of the model PCS-931A-DG-G-RYK.icd file is: the model is PCS-931A-DG-G-RYK, the manufacturer is NRR corresponding to Nanrui Relay Protection, and the version is V6.02.

[0147] Based on the defined standard model system and two enumeration methods, the values ​​of A1-A2A3A4-A5A6-A7-A8 for PCS-931A-DG-G-RYK are A1 = PCS, A2 = 931, A3 = A, A4 = blank, A5 = D, A6 = G, A7 = G, and A8 = {R, Y, K}. Combining the first-class rule base and the first-class identifiers, the third-class identifiers in the model PCS-931A-DG-G-RYK.icd file are: the applicable substation type is smart substation, the applicable voltage level is 220 kV and above, the applicable wiring method is 3 / 2 wiring, the applicable bay is line, the applicable device type is protection, the applicable sampling method is conventional cable sampling, the optional function information includes zero-sequence inverse time overcurrent protection, overvoltage and remote trip protection, and it is suitable for 3 / 2 wiring.

[0148] Step 2: Create a smart substation engineering design information table and define the engineering design information of the smart substation engineering design information table.

[0149] The smart substation engineering design information table provides basic engineering design information, including but not limited to:

[0150] Design basic information of substation: including substation type, voltage level, and wiring method;

[0151] Design substation bay information: including bay type, bay name, bay serial number, and device configuration. The device configuration includes the number of protection units, intelligent terminals, merging units, and acquisition execution units configured in this bay.

[0152] Design device information within the substation bay, including manufacturer, optional functions, and sampling methods.

[0153] For example, the smart substation engineering design information table describes a 500kV smart substation in the Southern Power Grid area. The 500kV adopts 3 / 2 connection, in which the first string is a half-string of the line, and the line interval is configured with dual line protection. The first set of protection uses Nanrui relay protection equipment, and the second set of protection uses Xuji electrical equipment. The first and second sets of smart terminals use Beijing Sifang equipment, and the line protection must have an overvoltage remote tripping function.

[0154] Step 3: Automatically select the ICD model files in the ICD model file library based on the smart substation engineering design information table, automatically generate an IED device list based on the matching ICD model files, automatically configure the IED name and IED description, and integrate the SCD file.

[0155] Specifically:

[0156] Step 3.1: Generate a list of secondary equipment for the entire station based on the bay type and device configuration in the smart substation engineering design information table;

[0157] Step 3.2: Based on the engineering design information, assign engineering design information to each IED in the entire station secondary device list, including: substation type, voltage level, wiring method, bay type, device type, bay name, set, manufacturer, optional function, and sampling method;

[0158] Step 3.3: For the engineering design information of the IED, the standard model information of the IED is generated according to the standard ICD model type rule of the ICD model file. The engineering design information of the IED includes the standard model type information.

[0159] Step 3.4, based on the standard model information of the IED, adapt the standard ICD model model of the ICD model file, and select an ICD model file that matches the standard model information of the IED from the ICD model file library;

[0160] Step 3.5: Automatically configure the IED name and description based on the IED voltage level, bay type, device type, bay name, and suite, and integrate the SCD file.

[0161] Specifically, according to relevant technical specifications, the IED name is named in an 8-character format. The first and second digits represent the device type, the third digit represents the bay type, the fourth and fifth digits represent the voltage level, the sixth and seventh digits represent the bay name, and the eighth digit represents the set type. Each specific information is extracted from the engineering design information.

[0162] For example, if the voltage level of an IED is 220kV, the bay type is line, the equipment type is protection, the bay name is line A, and the set type is the first set, then the IED name is automatically named P_L2201A, where P_ represents protection, L represents line, 22 represents 220kV, 01 represents the first group of line bays in the 220kV line bay (during implementation, the bay name can be automatically incremented from 01 onwards, that is, one group is randomly selected as 01, and the other bays are incremented), and A represents the first set.

[0163] Specifically, the IED description is named according to the voltage level-bay name-set-bay type-equipment type-equipment model format, where each set of specific information is extracted from the engineering design information.

[0164] For example, based on engineering design information, a 500kV smart substation of the Southern Power Grid is described. The 500kV uses a 3 / 2 connection, where the first string is a half-string of the line, and the line is named Dongfang Line. Dual line protection is configured for each line interval. The first protection set uses Nanrui relay protection equipment, and the second protection set uses Xuji electrical equipment. The first and second sets of smart terminals use Beijing Sifang equipment. The line protection must have an overvoltage remote trip function. The IED list can be formed as follows:

[0165] There are a total of 6 IEDs: 500kV first string line protection A, 500kV first string line protection B, 500kV first string edge switch intelligent terminal A, 500kV first string edge switch intelligent terminal B, 500kV first string central switch intelligent terminal A, and 500kV first string central switch intelligent terminal B.

[0166] Furthermore, based on the engineering design information and ICD file identification enumeration information, we can know that:

[0167] The 500kV first string line protection A adapts to the standard ICD model file's rules. This standard model information includes: A indicates the NARI relay protection platform, B indicates the NARI relay protection line protection serial number, C indicates the basic model, C indicates 500kV, D indicates GOOSE tripping, E indicates conventional sampling, F indicates China Southern Power Grid, and G indicates overvoltage remote tripping and compatibility with 3 / 2 wiring. Further application of the first rule base yields the following specific information: A indicates PCS, B indicates 931, C indicates A, C indicates 5, D indicates D, E indicates G, F indicates N, and G indicates RK.

[0168] The same method can be used to form:

[0169] The 500kV first string line protection B adapts to the standard ICD model type rules of the ICD model file, and the standard model information of the IED includes: A information is WXH, B information is 803, C information is A, C information is 5, D information is D, E information is G, F information is N, and G information is RK.

[0170] The 500kV first string edge switch intelligent terminal A adapts to the standard ICD model type rules of the ICD model file. The standard model information of the IED is as follows: A information is CSD, B information is 601, C information is ILB, C information is empty, D information is D, E information is G, F information is N, and G information is empty.

[0171] The 500kV first string side switch intelligent terminal B adapts to the standard ICD model type rules of the ICD model file. The standard model information of the IED includes: A information is CSD, B information is 601, C information is ILB, C information is empty, D information is D, E information is G, F information is N, and G information is empty.

[0172] The switch intelligent terminal A in the first 500kV string adapts to the standard ICD model type rule of the ICD model file. The standard model information of the IED is as follows: A information is CSD, B information is 601, C information is ILB, C information is empty, D information is D, E information is G, F information is N, and G information is empty.

[0173] The switch intelligent terminal B in the first 500kV string adapts to the standard ICD model type rules of the ICD model file. The standard model information of the IED is as follows: A information is CSD, B information is 601, C information is ILB, C information is empty, D information is D, E information is G, F information is N, and G information is empty.

[0174] The final IED list, selected ICD file, IED name and description information are as follows:

[0175] IED1:

[0176] IED name: P_L5011A, IED description: 500kV Dongfang Line first protection set: PCS-931A2-DG-N, ICD file: PCS-931A2-DG-N.icd.

[0177] IED2:

[0178] IED name: P_L5011B; IED description: 500kV Dongfang Line second protection unit: MXH-803A2-DG-N; ICD file: MXH-803A2-DG-N.icd.

[0179] IED3:

[0180] The IED name is P_B5011A. The IED description is CSD-601ILB-DG-N, the first intelligent terminal of the first string circuit breaker of 500 kV. The ICD file is CSD-601ILB-DG-N.icd.

[0181] IED4:

[0182] The IED name is P_B5011B. The IED description is CSD-601ILB-DG-N, the second intelligent terminal of the first string circuit breaker of 500 kV. The ICD file is CSD-601ILB-DG-N.icd.

[0183] IED5:

[0184] IED name: P_B5012A; IED description: CSD-601ILB-DG-N; ICD file: CSD-601ILB-DG-N.icd.

[0185] IED6:

[0186] The IED name is P_B5012B. The IED description is CSD-601ILB-DG-N, the second intelligent terminal of the first 500 kV circuit breaker string. The ICD file is CSD-601ILB-DG-N.icd.

[0187] Based on the above information, the target .icd file can be automatically extracted from the ICD model file library and the IED name and IED description can be configured. Furthermore, the automatic selection of the ICD file for the entire station SCD file, the automatic configuration of the IED name and IED description can be completed, and automatic ICD selection and SCD automatic integration based on automatic parameter recognition and intelligent analysis can be realized.

[0188] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing related hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods.

[0189] In one embodiment, a computer device is further provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0190] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0191] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0192] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A secondary intelligent device model selection method based on automatic identification and intelligent analysis, characterized in that: The steps include: Step 1: Define the file identifier of the ICD model file, create an ICD model file library for the smart substation, and determine the standard ICD model model and file identifier of the ICD model file; Step 2: Create a smart substation engineering design information table and define the engineering design information of the smart substation engineering design information table; Step 3: Automatically select the ICD model files in the ICD model file library based on the smart substation engineering design information table, automatically generate the IED device list based on the matching ICD model files, and automatically configure the IED name and IED description, and integrate the SCD file. The step 3 comprises the following steps: Step 3.1: Generate a list of secondary equipment for the entire station based on the bay type and device configuration in the smart substation engineering design information table; Step 3.2: Based on the engineering design information, assign engineering design information to each IED in the entire station secondary device list, including: substation type, voltage level, wiring method, bay type, device type, bay name, set, manufacturer, optional function, and sampling method; Step 3.3: For the engineering design information of the IED, generate the standard model information of the IED according to the standard ICD model model rules of the ICD model file; Step 3.4, based on the standard model information of the IED, adapt the standard ICD model model of the ICD model file, and select an ICD model file that matches the standard model information of the IED from the ICD model file library; Step 3.5: Automatically configure the IED name and description based on the IED voltage level, bay type, device type, bay name, and suite, and integrate the SCD file.

2. The secondary intelligent device model selection method based on automatic identification and intelligent analysis according to claim 1 is characterized in that: The file identifier of the ICD model file in step 1 includes: The first type of file identification: manufacturer, model information, and version; The second type of file identification: check code; The third category of file identification: adapted substation type, adapted voltage level, adapted wiring method, adapted interval, adapted equipment type, adapted sampling method, and optional function information.

3. The secondary intelligent device model selection method based on automatic identification and intelligent analysis according to claim 2 is characterized in that: The standard ICD model model of the ICD model file is A1-A2A3A4-A5A6-A7-A8, where A1 represents the manufacturer platform number, A2 represents the manufacturer serial number, A3 represents the basic model, A4 represents the voltage level, A5 represents the substation type, A6 represents the sampling method, A7 represents the region, and A8 represents the optional model.

4. The secondary intelligent device model selection method based on automatic identification and intelligent analysis according to claim 3 is characterized in that: For an ICD model file whose model information is standard information, that is, the model information is manufacturer platform number-(manufacturer serial number + basic model)-(substation type + sampling method)-region-version-check code, determining the standard ICD model of the ICD model file includes the following steps: For the ICD model file whose model information is manufacturer platform number-(manufacturer serial number + basic model)-(substation type + sampling method)-region-version-check code, The manufacturer's platform number is assigned to A1 of the standard ICD model type in the ICD model file; The manufacturer's serial number is assigned to A2 of the standard ICD model type in the ICD model file; The basic model is assigned to A3 of the standard ICD model model in the ICD model file; Empty value is assigned to A4 of the standard ICD model type in the ICD model file; The substation type is assigned to A5 of the standard ICD model type in the ICD model file; The sampling mode is assigned to A6 of the standard ICD model type in the ICD model file; The region is assigned to A7 of the standard ICD model type in the ICD model file; Null value is assigned to A8 of the standard ICD model type in the ICD model file.

5. The secondary intelligent device model selection method based on automatic identification and intelligent analysis according to claim 3 is characterized in that: For non-standard model information, The information before the first symbol of the model information of the ICD model file is the information of Zone 1; The information between the first symbol and the second symbol of the model information of the ICD model file is the information of zone 2; The information between the second symbol and the third symbol of the model information of the ICD model file is the information of zone 3; The information between the third symbol and the fourth symbol of the model information of the ICD model file is the information of zone 4; The information between the fourth symbol - and the fifth symbol - of the model information of the ICD model file is the fifth zone information, or there is only the fourth symbol - but no fifth symbol -, and the information after the fourth symbol - is the fifth information; The first area of ​​the model information of the ICD model file is directly assigned to the parameter A1 of the standard ICD model; When the last character of the information in Area 2 is a number 1, 2, 3, 5, 7, 0 or the character L, the last character of the information in Area 2 is assigned to parameter A4 of the standard ICD model, the second-to-last character of the information in Area 2 is assigned to parameter A3 of the standard ICD model, and all characters from the first character to the third-to-last character of the information in Area 2 are assigned to parameter A2 of the standard ICD model; If the last digit is not 1, 2, 3, 5, 7, 0 or L, the last digit of the information in Area 2 is assigned to parameter A3 of the standard ICD model. Then, all characters from the first to the second-to-last digit of the information in Area 2 are assigned to parameter A2 of the standard ICD model. Parameter A4 of the standard ICD model is left blank. The first character of the information in the third area is assigned to parameter A5 of the standard ICD model type, and the second character of the information in the third area is assigned to parameter A6 of the standard ICD model type. If the information in the third area contains only one character, parameter A6 is empty. The information in zone 4 is directly assigned to parameter A7 of the standard ICD model; The information in Area 5 is assigned bit by bit to parameter A8 of the standard ICD model.

6. The secondary intelligent device model selection method based on automatic identification and intelligent analysis according to claim 5 is characterized in that: The engineering design information includes: Design basic information of substation: including substation type, voltage level, and wiring method; Design substation bay information: including bay type, bay name, bay serial number, and device configuration. The device configuration includes the number of protection units, intelligent terminals, merging units, and acquisition execution units configured in this bay. Design device information within the substation bay, including manufacturer, optional functions, and sampling methods.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the selection method according to any one of claims 1 to 6 are implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the selection method according to any one of claims 1 to 6 are implemented.

9. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the selection method according to any one of claims 1 to 6 are implemented.

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