CN111737852B - Tower load calculation method based on digitization technology - Google Patents
Tower load calculation method based on digitization technology Download PDFInfo
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Abstract
The invention relates to the field of power transmission, and discloses a tower load calculation method based on a digitization technology. The method comprises the following steps: the method comprises the following steps of completing construction of a line load model based on all design elements of a power transmission line; the construction of a tower calculation model is completed based on the using conditions of the tower; the construction of a tower load combination model is completed based on the design information of the tower; establishing a power transmission line general model library consisting of a line load model, a tower calculation model and a tower load combination model; extracting element information such as actual design conditions of the power transmission line engineering tower position and the like to form a structured data set; and calling a line load model, a tower calculation model and a tower load combination model in the general model library, completing instantiation calculation of the models in batches, and outputting calculation results. The invention reduces a great deal of time and energy consumed by manual base-by-base calculation and checking, and improves the production efficiency through programming and automatic operation.
Description
Technical Field
The invention relates to the technical field of power transmission, in particular to a tower load calculation method based on a digitization technology.
Background
The tower load calculation and the load combination are important work in the design of the power transmission line, and a large amount of design working hours are also occupied. The transmission line engineering is limited by external conditions in the construction drawing design stage, and a large number of tower positions with over-conditions often need checking and checking. The traditional tower load design mode is adopted, a plurality of limitations exist in the aspects of data integration, data circulation and three-dimensional visualization, a large amount of time and energy of designers are consumed due to tower position verification, and the later-stage arrangement is very tedious. In the past, due to the lack of a digital means, professional data cannot be communicated. Now along with the research and development of a three-dimensional digital design platform, a digital design means is adopted, and through integrating input and output among different design business processes, a rich data analysis model is established, so that efficient and high-quality calculation and analysis of tower loads are realized, a better design finished product can be generated in less time, and the improvement of design quality and efficiency is greatly promoted.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the existing problems, a tower load calculation method based on a digital technology is provided, the mechanical problem of the tower in the line design is solved, and data circulation and optimal design of each stage are realized. The method adopts an advanced calculation analysis model, optimizes the existing design mode, develops the fine design of the tower, and is suitable for the design work of the combination of the electric wire load and the load of various self-supporting towers (including a bifurcation tower and a multi-loop tower).
The technical scheme adopted by the invention is as follows: a tower load calculation method based on a digitization technology comprises the following steps:
step 1: completing construction of a line load model based on each design element of the power transmission line;
and 2, step: completing construction of a tower calculation model based on the using conditions of the tower;
and step 3: the construction of a tower load combination model is completed based on the design information of the tower;
and 4, step 4: establishing a power transmission line general model library consisting of a line load model, a tower calculation model and a tower load combination model;
and 5: extracting element information in the actual design of the power transmission line engineering tower position to form a structured data set, wherein the data set comprises the line load design condition, the tower type and the working condition information of load calculation of each tower position;
step 6: and calling a line load model, a tower calculation model and a tower load combination model in the general model library based on the obtained data set, completing instantiation calculation of the models in batches, and outputting calculation results.
Further, the step 4 further includes: and storing the common data and the general data in the line load model and the tower load combined model into a database.
Further, the database comprises a local database and a network database, and the table structure of the local database is consistent with the table structure of the network database.
Further, the local database supports classified storage.
Further, the network database constructs different types of database tables according to different voltage classes and tower structure types.
Further, the step 5 specifically includes:
step 51: making a tower load related variable coding rule, describing tower load related characteristics as a standard data structure for program interaction;
step 52: establishing a data interface with SLW software, exporting a TA tower erection file and a dbf database file through the SLW software, analyzing the TA tower erection file and the dbf database file, and generating a tower use condition sequence table according to the analyzed data;
step 53: and storing the analyzed result into a database.
Further, the variable encoding rule includes: generating a rule and a variable corresponding description table by using the variable;
the variable generation rule combines the production variables by using words with physical significance, so that the variables are identified and are not repeated;
and the variable corresponding description table corresponds to the variable name to generate variable description with guiding significance.
Further, the step 52 specifically includes:
step 521: establishing a data interface with SLW software, and exporting a TA tower file and a dbf database file by the SLW software;
step 522: analyzing the TA tower file, and acquiring tower type, call height, front and rear side spans, a representative span, a corner degree, a horizontal span, a front and rear height difference, a maximum sag vertical span and insulator string configuration information from the TA tower file;
step 523: analyzing a dbf database file, wherein the dbf file comprises a wire dbf, an iron tower dbf and a meteorological condition dbf; analyzing the conductor dbf database file, and extracting conductor key parameters; analyzing the meteorological condition dbf database file and extracting meteorological conditions;
step 524: and extracting tower type, breath height, front and rear side spans, maximum sag vertical span, angle degree, front and rear height difference and meteorological conditions from the analyzed data to generate a tower use condition sequence table.
Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows: the tower load calculation method based on the digital technology is used for getting through the whole process data flow from load calculation to tower analysis of electric and structure specialties, and meets the requirement of electric and structure speciality collaborative design. Based on the data flow of the three-dimensional digital design of the power transmission line, the working contents of checking the use condition of the iron tower, calculating the electrical load, combining the structural load, calculating the batch mechanics of the iron tower and the like are completed, a large amount of time and energy consumed by manual base-by-base calculation and checking are reduced, and the production efficiency is improved through programming and automatic operation.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, a tower load calculation method based on a digitization technology includes the following processes:
step 1, based on all design elements of the power transmission line, firstly, the construction of a line load model is completed.
And 2, completing construction of a tower calculation model based on the using conditions of the tower.
And 3, completing construction of a tower load combination model based on the design information of the tower.
Step 4, establishing a universal model base of the power transmission line, which is composed of a line load model, a tower calculation model and a tower load combination model; and storing common and general data in the load calculation in a database.
The database comprises a local database and a network database, and the table structure of the local database is kept consistent with the table of the network database.
The local database supports classified storage; and the network database builds different types of database tables according to different voltage classes, tower structure types and the like.
And 5, extracting element information such as actual design conditions of the power transmission line engineering tower positions and the like to form a structured data set, wherein the data set comprises line load design conditions of each tower position, tower models and working condition information of load calculation. The method specifically comprises the following steps:
and step 51, making a tower load related variable coding rule, describing tower load related characteristics, and using the tower load related characteristics as a standard data structure for interaction of each program.
The variable encoding rule includes: 1) and generating a rule by using the variable. The method combines the production variables by using words with physical significance to ensure that the variables are identifiable and not repeated.
2) And (5) a variable correspondence description table. And generating variable description with guiding significance corresponding to the variable name.
Step 52, establishing a data interface with the SLW software of the overhead power transmission line flat section processing and positioning system developed by Beijing Douchheng company. The TA tower file and dbf database file are exported by the SLW. Wherein the data parsing of the SLW comprises:
1) and (3) TA data analysis: and acquiring data such as tower type, call height, front and rear side span, representative span, corner degree, horizontal span, front and rear height difference, maximum sag vertical span, insulator string configuration information and the like from the TA file.
2) And (3) analyzing dbf data: the Dbf file comprises a wire Dbf, an iron tower Dbf and a meteorological condition Dbf.
Extracting key parameters of the conductor from the conductor dbf database file; the meteorological conditions dbf database file can extract meteorological conditions.
Through the analysis of the data, the tower type, the breath height, the front and rear side span, the maximum sag vertical span, the angle degree, the front and rear height difference and the meteorological conditions of the tower can be extracted to generate a tower use condition sequence table;
and step 53, storing the analyzed result in a database, so as to facilitate later calling.
And 6, calling a line load model, a tower calculation model and a tower load combination model in the general model library, completing instantiation calculation of the models in batches, and outputting calculation results.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed. Those skilled in the art to which the invention pertains will appreciate that insubstantial changes or modifications can be made without departing from the spirit of the invention as defined by the appended claims.
Claims (5)
1. A tower load calculation method based on a digitization technology is characterized by comprising the following steps:
step 1: completing construction of a line load model based on each design element of the power transmission line;
step 2: completing construction of a tower calculation model based on the using conditions of the tower;
and step 3: the construction of a tower load combination model is completed based on the design information of the tower;
and 4, step 4: establishing a power transmission line general model library consisting of a line load model, a tower calculation model and a tower load combination model;
and 5: extracting element information in the actual design of the power transmission line engineering tower position to form a structured data set, wherein the data set comprises the line load design condition, the tower type and the working condition information of load calculation of each tower position;
the step 5 specifically comprises the following steps:
step 51: making a tower load related variable coding rule, describing tower load related characteristics as a standard data structure for program interaction;
step 52: establishing a data interface with SLW software, exporting a TA tower erecting file and a dbf database file through the SLW software, analyzing the TA tower erecting file and the dbf database file, and generating a tower use condition sequence table according to data obtained by analysis;
step 53: storing the analyzed result in a database;
wherein the variable encoding rule comprises: generating a rule and a variable corresponding description table by using the variable; the variable generation rule combines the production variables by using words with physical significance, so that the variables are identified and are not repeated; the variable correspondence description table corresponds to the variable name and generates variable description with guiding significance;
step 52 specifically includes:
step 521: establishing a data interface with SLW software, and exporting a TA tower file and a dbf database file by the SLW software;
step 522: analyzing the TA tower file, and acquiring tower type, call height, front and rear side spans, a representative span, a corner degree, a horizontal span, a front and rear height difference, a maximum sag vertical span and insulator string configuration information from the TA tower file;
step 523: analyzing a dbf database file, wherein the dbf database file comprises a wire dbf, an iron tower dbf and a meteorological condition dbf; analyzing the conductor dbf database file, and extracting conductor key parameters; analyzing the meteorological condition dbf database file and extracting meteorological conditions;
step 524: extracting tower type, pitch, front and rear side spans, maximum sag vertical span, angle degree, front and rear height difference and meteorological conditions from the analyzed data to generate a tower use condition sequence table;
and 6: and calling a line load model, a tower calculation model and a tower load combination model in the general model library based on the obtained data set, completing instantiation calculation of the models in batches, and outputting calculation results.
2. The tower load calculation method based on the digitization technology as claimed in claim 1, wherein the step 4 further comprises: and storing the common data and the general data in the line load model and the tower load combination model into a database.
3. The tower load calculation method based on the digitization technology as claimed in claim 2, wherein the database includes a local database and a network database, and a table structure of the local database is consistent with a table structure of the network database.
4. The tower load calculation method based on the digitization technology as claimed in claim 3, wherein the local database supports classified storage.
5. The tower load calculation method based on the digitization technology as claimed in claim 3, wherein the network database builds different types of database tables according to different voltage classes and tower structure types.
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