CN107578218B - PSD-BPA (phase-sensitive Detector-BPA) -based rated current data batch modification method and system - Google Patents
PSD-BPA (phase-sensitive Detector-BPA) -based rated current data batch modification method and system Download PDFInfo
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Abstract
The invention discloses a PSD-BPA (phase-sensitive Detector-BPA) -based rated current data batch modification method and system, and relates to the technical field of power systems. The batch modification method of the rated current data comprises the steps of carrying out batch processing on the rated current value of a line under the calculation condition of 40 ℃ or 25 ℃ in a PSD-BPA flow file according to the type, the region, the partition and the voltage grade of the line; automatically screening 220kV lines in the modification process, and judging whether the lines meet the modification standard one by one; if the current value meets the modification standard, reading a new rated current value to replace the original rated current value, and marking according to classification; modifying one by one, finally outputting the modified data in a text form, and simultaneously displaying the Chinese name of the modified line data so as to be convenient for a worker to check; the lines which do not accord with the modification standard are output and displayed in a text form; the invention uses the rapid batch modification method to replace a large amount of repeated mechanical data processing work, thereby improving the working efficiency of the operation and planning departments of the power system.
Description
Technical Field
The invention belongs to the technical field of power systems, and particularly relates to a 220kV line rated current data batch modification method and system based on PSD-BPA power flow data.
Background
The rated current value of the line is used for detecting line overload and (N-1) breaking and checking overload, and is one of the most important basic parameters in system analysis such as power grid operation mode calculation, power grid planning and design and the like. The rated current value of the circuit is different with different environmental temperatures, taking a 2XLGJ-300 wire as an example, the current-carrying capacity of the wire at 40 ℃ is 1134A, and the current-carrying capacity of the wire at 25 ℃ is 1400A. Therefore, the environmental temperature is different, and the current-carrying capacity of the lead is different. Therefore, whether the rated current of the line selected in the analysis and calculation process of the power system is reasonable and accurate directly influences the safe, reliable and economic operation of the power system.
The PSD-BPA power flow program is power system analysis software which is universal in provincial power grid mode calculation, system planning design and scheduling operation. In the BPA trend data file, each equipment element corresponds to a corresponding data card, and when original names and parameters are filled in the corresponding cards, data are input in a designated column strictly according to card attribute requirements, so that the correctness of data and calculation can be ensured. The invention is to modify the line current rating data, wherein the line card is an 'L' card and the current rating is in columns 34-37 of the card. The load flow calculation usually needs to modify hundreds or even thousands of rated current values of 220kV lines, if the workload of a calculator is increased by manually modifying the lines one by one, and a large amount of repeated and boring mechanical work easily causes data filling errors, thereby bringing inconvenience to the operation and planning departments of the power system.
Therefore, a method for rapidly, automatically, accurately and massively changing the rated current value of the power grid tidal current data is urgently needed to be found.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method and a system for modifying 220kV line rated current data in batches based on PSD-BPA power flow data.
The invention solves the technical problems through the following technical scheme: a PSD-BPA-based rated current data batch modification method comprises the following steps:
(1) selecting a rated current value of the line to specify the temperature based on the calculation condition classification;
(2) reading in a line parameter management file, analyzing the file and extracting data, wherein the related data comprises a line Chinese name, a rated current value, a lead model, a line length, CT (computed tomography) change and operation and maintenance unit information;
(3) reading in a line name management file, and extracting line pinyin abbreviated names and corresponding Chinese names; the line pinyin abbreviation names are formed by pinyin abbreviation names of nodes at the head end and the tail end of the line, and dual-loop information is distinguished through line loop mark numbers;
(4) reading the trend file and generating a related judgment database;
(5) and (2) processing the line parameter management file, the line name management file and the power flow file according to the specified temperature selected in the step (1), and performing operation of modifying the rated current value of the power flow file in batches.
Further, the specified temperature in step (1) includes 40 ℃ or 25 ℃.
Further, the step (2) of reading and extracting the line parameter management file comprises the following substeps:
(2.1) carrying out self-defined selection on the line parameter management file in the step (2), and extracting the Chinese name of the line and the rated current value of the line at the specified temperature;
and (2.2) obtaining the rated current values of all the lines in the line parameter management file corresponding to the specified temperature.
Further, the step (3) of reading in the line name management file and extracting line pinyin abbreviated names and corresponding Chinese names comprises the following substeps:
(3.1) matching the line pinyin abbreviated name and the Chinese name extracted in the step (3) with the line Chinese name and the rated current value extracted in the step (2) one by one, and automatically generating a rated current value database according to the matching result;
(3.2) the parameters in the rated current value database generated in the step (3.1) comprise Chinese names, line pinyin abbreviated names, loop mark numbers and rated current values at the specified temperature.
Further, the step (4) of reading in the power flow file comprises the following substeps:
(4.1) reading 'area name' data in a tide file A card, judging whether the data is a certain area name, if so, extracting other area name abbreviations to which the area belongs in the row of the A card, and forming an area line database so as to determine and display the area line;
and (4.2) extracting rows with voltage class data of '230' in the power flow file B card, extracting pinyin abbreviated names of all lines with '230' lines, and generating a naming mode database of all lines in a certain area.
Further, the step (5) comprises the following sub-steps:
(5.1) reading the power flow file in the step (4) line by line, and judging whether the read line is an L card;
(5.2) if not, carrying out a jump-out judgment, and carrying out the operation of the step (5.1) on the next line in the power flow file; if yes, judging whether the row voltage grade data is 230, if yes, 230 indicates that the line is a 220KV line, and if not, 230 indicates that the line is not a 220KV line;
(5.3) if the row voltage class data is not '230', performing the operation of the step (5.1) on the next row in the power flow file; if the row voltage level data is '230', judging whether the rated current value position of the row has parameters;
(5.4) if the rated current position of the row has no parameter, indicating that the row of data has no rated current, and further judging whether the pinyin abbreviation names of the lines in the row of data belong to all line naming mode databases in a certain area in the step (4.2); if not, performing the operation of the step (5.1) on the next line in the power flow file; if so, further judging whether the head and tail names of the line pinyin abbreviation names are the same; if the current is the same as the current in the power flow file, performing the operation of the step (5.1) on the next line in the power flow file; if not, outputting the row of data;
(5.5) if the rated current position of the line has the parameter, namely the line data has the rated current, judging whether the parameter exists at the position corresponding to the circuit mark in the line data; if the parameters exist at the positions corresponding to the circuit marks in the line data, performing the operation of the step (5.6);
(5.6) judging whether the line pinyin initial and final abbreviated names of the line are in the rated current value database generated in the step (3.2), and if the line pinyin initial and final abbreviated names are in the rated current value database, judging whether the line pinyin initial abbreviated name and the line pinyin initial abbreviated name final name in the line of data are the same; if the circuit signs are different and the circuit signs in the row are consistent with the circuit signs of the corresponding circuits in the rated current value database, the rated current value of the circuit is changed according to the rated current value database generated in the step (3.2), and then the operation of the step (5.1) is executed;
(5.7) if no parameter exists at the position corresponding to the line loop mark in the line data, performing the operation of the step (5.6);
and (5.8) performing the operations from the step (5.1) to the step (5.6) on all lines of the power flow file read in the step (4) line by line, namely finishing batch modification on the rated current value of the line.
Further, the PSD-BPA-based rated current data batch modification system comprises a first temperature selection module, a second temperature selection module and a third temperature selection module, wherein the first temperature selection module is used for selecting a specified temperature; the second file reading module is used for respectively reading the line parameter management file, the line name management file and the power flow file and generating a corresponding regional line database, a naming mode database of all lines and a rated current value database; the third batch processing module is used for processing the line parameter management file, the line name management file and the power flow file and performing operation of modifying the rated current value of the power flow file in batches; and the fourth display and generation module is used for displaying the modified line name and the 220kV line which is not modified by the current value in the power flow file, and generating the power flow file which is modified by the rated current value of the line and the file of the line without the current value of the L card in the power flow file.
Compared with the prior art, the batch modification method and system for 220kV line rated current data based on PSD-BPA tidal current data provided by the invention can be used for carrying out batch modification on the line current value in the tidal current file at the specified temperature of a power grid by reading in and extracting the line parameter management file and the line name management file and carrying out matching to generate the standard database, thereby avoiding that power grid workers manually modify the line rated current value one by one and realizing automatic batch modification on all the line current values at the specified temperature of a certain province of the power grid; on the basis of ensuring the accuracy, the workload of workers is greatly reduced, the data modification time is shortened, the working efficiency is greatly improved, and the workers are liberated from repeated and fussy work.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a flow chart of a batch modification method of rated current data based on PSD-BPA of the invention;
FIG. 2 is a diagram showing an embodiment of step (5) of the present invention.
Detailed Description
The technical solutions in the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the invention provides a PSD-BPA-based batch modification method for rated current data, which includes the following steps:
(1) based on the calculation condition classification, selecting a specified temperature of a rated current value of the line, wherein the specified temperature comprises 40 ℃ or 25 ℃;
(2) reading in a line parameter management file, analyzing the file and extracting data, wherein the related data comprises information such as a line Chinese name, a rated current value, a lead model, a line length, CT (computed tomography) variation, an operation and maintenance unit and the like;
(3) reading in a line name management file, and extracting line pinyin abbreviated names and corresponding Chinese names; the line pinyin abbreviation names are formed by pinyin abbreviation names of nodes at the head end and the tail end of the line, and dual-loop information is distinguished through line loop mark numbers;
(4) reading the trend file and generating a related judgment database;
(5) and (2) processing the line parameter management file, the line name management file and the power flow file according to the specified temperature selected in the step (1), and performing operation of modifying the rated current value of the power flow file in batches.
Reading and extracting a line parameter management file in the step (2), and comprising the following substeps:
(2.1) carrying out self-defined selection on the line parameter management file in the step (2), and extracting the Chinese name of the line and the rated current value of the line at the specified temperature;
and (2.2) obtaining the rated current values of all the lines in the line parameter management file corresponding to the specified temperature.
Reading in a line name management file and extracting line pinyin abbreviated names and corresponding Chinese names, wherein the method comprises the following substeps:
(3.1) matching the line pinyin abbreviated name and the Chinese name extracted in the step (3) with the line Chinese name and the rated current value extracted in the step (2.1) one by one, and automatically generating a rated current value database according to the matching result;
(3.2) the parameters in the rated current value database generated in the step (3.1) comprise Chinese names, line pinyin abbreviated names, loop mark numbers and rated current values at the specified temperature.
The step (4) of reading in the tide file comprises the following substeps:
(4.1) reading 'area name' data in a tide file A card, judging whether the data is a certain area name, if so, extracting other area name abbreviations to which the area belongs in the row of the A card, and forming an area line database so as to determine and display the area line;
and (4.2) extracting rows with voltage class data of '230' in the power flow file B card, extracting pinyin abbreviated names of all lines with '230' lines, and generating a naming mode database of all lines in a certain area.
As shown in fig. 2, step (5) includes the following sub-steps:
(5.1) reading the power flow file in the step (4) line by line, and judging whether the read line is an L card;
(5.2) if not, carrying out a jump-out judgment, and carrying out the operation of the step (5.1) on the next line in the power flow file; if yes, judging whether the row voltage grade data is 230 (if yes, 230 indicates that the line is a 220KV line, and if not, 230 indicates that the line is not a 220KV line);
(5.3) if the row voltage class data is not '230', performing the operation of the step (5.1) on the next row in the power flow file; if the row voltage level data is '230', judging whether the rated current value position of the row has parameters;
(5.4) if the rated current position of the row has no parameter, indicating that the row of data has no rated current, and further judging whether the pinyin abbreviation names of the lines in the row of data belong to all line naming mode databases in a certain area in the step (4.2); if not, performing the operation of the step (5.1) on the next line in the power flow file; if so, further judging whether the head and tail names of the line pinyin abbreviation names are the same; if the current is the same as the current in the power flow file, performing the operation of the step (5.1) on the next line in the power flow file; if not, outputting the row of data;
(5.5) if the rated current position of the line has the parameter, namely the line data has the rated current, judging whether the parameter exists at the position corresponding to the circuit mark in the line data; if the parameters exist at the positions corresponding to the circuit marks in the line data, performing the operation of the step (5.6);
(5.6) judging whether the line pinyin initial and final abbreviated names of the line are in the rated current value database generated in the step (3.2), and if the line pinyin initial and final abbreviated names are in the rated current value database, judging whether the line pinyin initial abbreviated name and the line pinyin initial abbreviated name final name in the line of data are the same; if the circuit signs are different and the circuit signs in the row are consistent with the circuit signs of the corresponding circuits in the rated current value database, the rated current value of the circuit is changed according to the rated current value database generated in the step (3.2), and then the operation of the step (5.1) is executed;
(5.7) if no parameter exists at the position corresponding to the line loop mark in the line data, performing the operation of the step (5.6);
and (5.8) performing the operations from the step (5.1) to the step (5.6) on all lines of the power flow file read in the step (4) line by line, namely finishing batch modification on the rated current value of the line.
A PSD-BPA-based rated current data batch modification system comprises a first temperature selection module, a second temperature selection module and a control module, wherein the first temperature selection module is used for selecting a specified temperature; the second file reading module is used for respectively reading the line parameter management file, the line name management file and the power flow file and generating a corresponding regional line database, a naming mode database of all lines and a rated current value database; the third batch processing module is used for processing the line parameter management file, the line name management file and the power flow file and performing operation of modifying the rated current value of the power flow file in batches; and the fourth display and generation module is used for displaying the modified line name and the 220kV line which is not modified by the current value in the power flow file, and generating a power flow file (. DAT) which is modified by the rated current value of the line and a file of the line which has no current value in the L card in the power flow file.
According to the method, the circuit parameter management file and the circuit name management file are read and extracted, and are matched to generate the standard database, so that the circuit current values in the power flow file at the specified temperature of the power grid are changed in batch, the situation that power grid workers modify the circuit rated current values one by one in a manual mode is avoided, and automatic batch modification of all circuit current values at the specified temperature of a certain province of the power grid is realized.
The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or modifications within the technical scope of the present invention, and shall be covered by the scope of the present invention.
Claims (4)
1. A PSD-BPA-based rated current data batch modification method is characterized by comprising the following steps:
(1) selecting a rated current value of the line to specify the temperature based on the calculation condition classification;
(2) reading in a line parameter management file, analyzing the file and extracting data, wherein the related data comprises a line Chinese name, a rated current value, a lead model, a line length, CT (computed tomography) change and operation and maintenance unit information;
(3) reading in a line name management file, and extracting line pinyin abbreviated names and corresponding Chinese names; the line pinyin abbreviation names are formed by pinyin abbreviation names of nodes at the head end and the tail end of the line, and dual-loop information is distinguished through line loop mark numbers;
reading in a line name management file and extracting line pinyin abbreviated names and corresponding Chinese names, wherein the method comprises the following substeps:
(3.1) matching the line pinyin abbreviated name and the Chinese name extracted in the step (3) with the line Chinese name and the rated current value extracted in the step (2) one by one, and automatically generating a rated current value database according to the matching result;
(3.2) the parameters in the rated current value database generated in the step (3.1) comprise Chinese names, line pinyin abbreviated names, loop mark numbers and rated current values at the specified temperature;
(4) reading the trend file and generating a related judgment database;
the step (4) of reading in the tide file comprises the following substeps:
(4.1) reading 'area name' data in a tide file A card, judging whether the data is a certain area name, if so, extracting other area name abbreviations to which the area belongs in the row of the A card, and forming an area line database so as to determine and display the area line;
(4.2) extracting rows with voltage class data of '230' in the power flow file B card, extracting pinyin abbreviated names of all lines with '230' lines, and generating a naming mode database of all lines in a certain area;
(5) processing the line parameter management file, the line name management file and the power flow file according to the designated temperature selected in the step (1), and performing operation of modifying the rated current value of the power flow file in batches;
the step (5) comprises the following substeps:
(5.1) reading the power flow file in the step (4) line by line, and judging whether the read line is an L card;
(5.2) if not, carrying out a jump-out judgment, and carrying out the operation of the step (5.1) on the next line in the power flow file; if yes, judging whether the row voltage grade data is 230, if yes, 230 indicates that the line is a 220KV line, and if not, 230 indicates that the line is not a 220KV line;
(5.3) if the row voltage class data is not '230', performing the operation of the step (5.1) on the next row in the power flow file; if the row voltage level data is '230', judging whether the rated current value position of the row has parameters;
(5.4) if the rated current position of the row has no parameter, indicating that the row of data has no rated current, and further judging whether the pinyin abbreviation names of the lines in the row of data belong to all line naming mode databases in a certain area in the step (4.2); if not, performing the operation of the step (5.1) on the next line in the power flow file; if so, further judging whether the head and tail names of the line pinyin abbreviation names are the same; if the current is the same as the current in the power flow file, performing the operation of the step (5.1) on the next line in the power flow file; if not, outputting the row of data;
(5.5) if the rated current position of the line has the parameter, namely the line data has the rated current, judging whether the parameter exists at the position corresponding to the circuit mark in the line data; if the parameters exist at the positions corresponding to the circuit marks in the line data, performing the operation of the step (5.6);
(5.6) judging whether the line pinyin initial and final abbreviated names of the line are in the rated current value database generated in the step (3.2), and if the line pinyin initial and final abbreviated names are in the rated current value database, judging whether the line pinyin initial abbreviated name and the line pinyin initial abbreviated name final name in the line of data are the same; if the circuit signs are different and the circuit signs in the row are consistent with the circuit signs of the corresponding circuits in the rated current value database, the rated current value of the circuit is changed according to the rated current value database generated in the step (3.2), and then the operation of the step (5.1) is executed;
(5.7) if no parameter exists at the position corresponding to the line loop mark in the line data, performing the operation of the step (5.6);
and (5.8) performing the operations from the step (5.1) to the step (5.6) on all lines of the power flow file read in the step (4) line by line, namely finishing batch modification on the rated current value of the line.
2. The PSD-BPA-based batch modification method of current rating data as claimed in claim 1, wherein: the specified temperatures in step (1) include 40 ℃ or 25 ℃.
3. The batch PSD-BPA-based rated current data modifying method according to claim 1, wherein the step (2) of reading in and extracting the line parameter management file comprises the following substeps:
(2.1) carrying out self-defined selection on the line parameter management file in the step (2), and extracting the Chinese name of the line and the rated current value of the line at the specified temperature;
and (2.2) obtaining the rated current values of all the lines in the line parameter management file corresponding to the specified temperature.
4. A PSD-BPA based batch modification system for rated current data based on the method of claim 1, wherein: the temperature control device comprises a first temperature selection module, a second temperature selection module and a control module, wherein the first temperature selection module is used for selecting a specified temperature; the second file reading module is used for respectively reading the line parameter management file, the line name management file and the power flow file and generating a corresponding regional line database, a naming mode database of all lines and a rated current value database; the third batch processing module is used for processing the line parameter management file, the line name management file and the power flow file and performing operation of modifying the rated current value of the power flow file in batches; and the fourth display and generation module is used for displaying the modified line name and the 220kV line which is not modified by the current value in the power flow file, and generating the power flow file which is modified by the rated current value of the line and the file of the line without the current value of the L card in the power flow file.
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