CN110070462B - Target device pair matching method based on IED information and common keyword check - Google Patents
Target device pair matching method based on IED information and common keyword check Download PDFInfo
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Abstract
The invention discloses a target device pair matching method based on IED information and common keyword check, which comprises the following steps of: step 1: constructing a historical association table containing historical association pairs of each device in a historical SCD database; step 2: obtaining query conditions of a history association table by receiving IED to be designed and transmitting basic information of the IED; and step 3: inquiring the history association pairs meeting the conditions in the history association pair table according to the inquiry conditions, and 4: carrying out common keyword check on each historical association pair in sequence; and 5: acquiring similarity between historical receiving equipment description and current receiving equipment description and between historical sending equipment description and current sending equipment description; step 6: taking the historical association pair in the matching historical association pair set as a target device pair of the current receiving IED and the sending IED to be designed; the invention solves the technical problems of inaccurate and low efficiency of searching target association pairs in the historical database in the virtual terminal design, and improves the intelligence and efficiency of the virtual terminal.
Description
Technical Field
The invention relates to the field of design and debugging of intelligent substations, in particular to a target device pair matching method based on IED and common keyword inspection.
Background
The method comprises the steps that input and output signal relations among devices in the intelligent Substation are designed by each domestic power design institute through a virtual terminal list or SCD (Substation Configuration Description), so that virtual connection among equipment is provided; at present, each power design institute designer designs each virtual connection of each Device in a virtual terminal table Excel file by manually copying aiming at a receiving IED (Intelligent Electronic Device) and a sending IED to be designed by using a Device virtual terminal head table derived from an IED Capability Description (IED) file, and the method is complicated, has no intelligence and can cause a copying error condition.
For example, (maka, yellow dawn, hou aijun, etc. intelligent substation secondary system typical design intelligent auxiliary scheme research [ J ] Guangdong electric power, 2014,27 (3): 40-43) establishes a typical interval knowledge base based on interval standardization and device interval standardization, and adopts virtual terminal fuzzy matching to carry out engineering design, thereby improving the efficiency of secondary system typical design; (Liuming loyal; Zhengyongkang; kids daoyang; zhuangzhong; jiutan; Li Baoyen; Tianli; Meng Lei; Jiangyang; Dingxuanwen; Dixuanwen; Chen, Chen Canun; Zhanghua; Xushuangkai; Zhang min; Weiboyuan; Hoxishipeng; Regji; to Red Ji. a virtual terminal table automatic generation method [ P ]. CN201510169738.5, 2015-4-13) based on a plurality of SCD template files processed by existing SCDs, adopting to-be-designed association pairs to code equipment to match association pairs of IEDs in a historical SCD database, but because the to-be-designed association pairs given by a designer are not necessarily accurate to code the equipment, the matched historical association pairs are not ideal; although a template virtual connection for storing historical SCD by adopting a database is considered in research and development of a key technology for designing an intelligent substation virtual terminal [ D ], the fuzzy matching method of equipment codes and character strings is mainly adopted to search a target association pair, when the equipment codes are inaccurate or not provided, the method may cause that the searched target association pair is inaccurate or cannot be searched; (Huangshigao, Li Yan, Li Teng, Zhao Xue Lin, Li Peng, Jieji, design and implementation of the intelligent substation SCD file virtual loop automatic generation technology, power system protection and control, 2017,45(17): 106-. The matching mode of description is reflected by a regular expression through a description keyword, and the defects are that a group of description keyword descKey must be prepared for each device in advance, and IEDname matching is required at the same time, so when the number of IEDs of a certain substation is large, the workload of preparing a group of description keywords for each device is large, and at the moment, IEDname may not exist in a receiving IED to be designed and a sending IED, and IEDname matching cannot be performed.
The existing method does not fully utilize a similar device association pair (an association pair consisting of a receiving IED and a sending IED) in the historical SCD and virtual connection thereof, although the historical association pair is utilized in the existing method, a target association pair cannot be accurately matched in the historical association pair for the receiving IED and the sending IED to be designed currently in the history, and the problems of inaccuracy, low efficiency, easiness in errors and the like of the found target association pair exist.
Disclosure of Invention
The invention provides a target device pair matching method based on IED and common keyword inspection, which improves the matching and searching accuracy of target association pairs.
The technical scheme adopted by the invention is as follows: a target device pair matching method based on IED information and common keyword checking comprises the following steps:
step 1: analyzing each IED node in the historical SCD file to obtain basic information of each IED node and an association pair owned by each IED node, and constructing a historical association table containing each equipment historical association pair in a historical SCD database; a history association pair is association information composed of basic information of a receiving IED and a sending IED;
step 2: analyzing IED nodes in an ICD file corresponding to a receiving IED and a sending IED to be designed currently to obtain each basic information of the IED nodes, and using the basic information of the receiving IED and the sending IED as a query condition for querying a history association table;
and step 3: according to the query conditions obtained in the step 2, querying whether a history association pair meeting the conditions exists in the history association table obtained in the step 1, if only one history association pair exists, taking the history association pair as a target equipment pair, storing the target equipment pair into a matching history association pair set, and exiting; otherwise, the next step is carried out;
and 4, step 4: if the historical association pair is not inquired, the inquiry condition is not specified, and the historical association pair is inquired again; if more than one historical association pair is inquired, traversing all the inquired historical association pairs, sequentially carrying out common keyword check, and if the check result is that the common keyword check is passed, switching to the next step; otherwise, processing the next historical association pair;
and 5: for the history association pairs which pass the common keyword check, adopting a character string matching algorithm RKR-GST to respectively obtain the history receiving device description and the current receiving device description to be designed in the history association pairs, and the similarity rec _ match and send _ match between the history sending device description and the current sending device description to be designed in the history association pairs; if both the rec _ match and the send _ match are larger than the similarity threshold, putting the current history association pair into a matching history association pair set; then processing the next historical association pair;
step 6: matching each history correlation pair in the history correlation pair set, namely a final target device pair of the receiving IED and the sending IED to be designed currently;
further, the process of checking the common keywords for one history association pair in step 4 is as follows:
s1: constructing a common key word set, wherein at least one key word is provided with a limiting word;
s2: constructing a temporary keyword array;
s3: for the historical receiving device description and the current receiving device description to be designed in the historical association pair, or the historical sending device description and the current device description to be sent in the historical association pair, aiming at each keyword in a common keyword set, if the current keyword has no limiting word, checking whether the historical receiving device description and the current receiving device description to be designed in the historical association pair, or the historical sending device description and the current device description to be sent in the historical association pair simultaneously contain the keyword; if yes, adding the key word into the temporary key word array; then, transferring to the next keyword;
if the current keyword has a limiting word, checking whether the historical receiving device description and the current receiving device description to be designed in the historical association pair or the historical sending device description and the current receiving device description in the historical association pair simultaneously contain the keyword or not, and whether the keyword and the current receiving device description simultaneously do not contain the limiting word or not; if yes, adding the key word into the temporary key word array; then, transferring to the next keyword;
s4: after traversing all keywords in the common keyword set, determining whether the number of elements of the temporary keyword array is greater than a set threshold, if so, indicating that the history receiving equipment in the history association pair passes the common keyword check, then turning to step S5, otherwise, giving out a check result of 'failing to pass the common keyword check', and returning;
s5: according to the steps S2-S4, common keyword check is carried out on the history sending device description in the history association pair and the current sending device description to be designed, if the number of elements of the temporary keyword array is larger than a set threshold value, the history sending device description in the history association pair passes the common keyword check, and a check result of 'passing the common keyword check' is returned, otherwise, a check result of 'failing the common keyword check' is returned;
further, the IED node information in step 1 includes device description, device type, manufacturer, version number;
further, the query conditions in step 2 include a receiving device type, a receiving device manufacturer, a receiving device version number, a sending device type, a sending device manufacturer, and a sending device version number of the current IED to be designed and sent;
further, the IED node information in step 2 includes basic information of each IED, its own association pairs, and a virtual connection set owned by each association pair.
The invention has the beneficial effects that:
(1) in the invention, the devices with the same model are searched in the historical association pair, and the matching success probability is maximum;
(2) if no equipment with the same model or a plurality of equipment with the same model is found in the matching process, the range of searching the historical association pair is expanded, the historical receiving equipment description and the historical sending equipment description in the historical association pair are respectively checked through the common key words with the limiting words so as to find the target association pair with the equipment descriptions matched as accurately as possible, and a character string matching algorithm is adopted for matching so as to find a more accurate target equipment pair;
(3) the invention improves the accuracy of the matching of the target association pair through the target association pair matching method.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1, a target device pair matching method based on IED information and common keyword check includes the following steps:
step 1: analyzing each IED node in the historical SCD file to obtain basic information of each IED node and an association pair owned by each IED node, and constructing a historical association table containing each equipment historical association pair in a historical SCD database; a history association pair is association information composed of basic information of a receiving IED and a sending IED;
for each historical SCD file, analyzing each IED node therein respectively, obtaining basic information (including a device name, a device description desc, a device type, a manufacturer factor, a device version number configVersion) of each IED, obtaining each association pair owned by each IED, constructing a historical SCD database, constructing a historical association pair T _ RelatedPair in the database, wherein the historical association pair T _ RelatedPair comprises a sending device description, a sending device type, a sending device manufacturer, a sending device version number, a receiving device description, a receiving device type, a receiving device manufacturer, a receiving device version number, an SCD number and the like, storing the association pair of each device in each SCD, and using the association pair as a data source for matching and searching of a subsequent target association pair.
Step 2: analyzing IED nodes in an ICD file corresponding to a receiving IED and a sending IED to be designed currently to obtain each basic information of the IED nodes, and using the basic information of the receiving IED and the sending IED as a query condition for querying a history association table;
firstly, analyzing an IED node from a corresponding ICD file for a receiving IED and a sending IED to be designed currently, wherein the IED node is (for example, < IED name ═ TEMPLATE > desc ═ LINE _ PROTECTION _ DEVICE ═ type ═ UDL 531: "manufacturer:" origin "configVersion:" 1.00">, and obtaining equipment description desc, equipment type, manufacturer manufacter and version number configVersion information of the receiving IED and the sending IED; constructing a data structure IEDInfo _ D of the IED to be designed, and storing an equipment description IEDDesc, an equipment type, an equipment manufacturer and an equipment version number configVersion of the IED to be designed;
then, respectively obtaining corresponding receiving device description D _ rec _ desc, receiving device type D _ rec _ type, receiving device manufacturer D _ rec _ manfacturer, receiving device version number D _ rec _ configVersion, sending device description D _ send _ desc, sending device type D _ send _ type, sending device manufacturer D _ send _ manfacturer and sending device version number D _ send _ configVersion according to the data structure IEDInfo _ D; taking d _ rec _ type, d _ rec _ manfacturer, d _ rec _ configVersion, d _ send _ type, d _ send _ manfacturer and d _ send _ configVersion as query conditions;
and step 3: according to the query conditions obtained in the step 2, querying whether a history association pair meeting the conditions exists in the history association table obtained in the step 1, if only one history association pair exists, taking the history association pair as a target equipment pair, storing the target equipment pair into a matching history association pair set, and exiting; otherwise, the next step is carried out;
and 4, step 4: if the historical association pair is not inquired, the inquiry condition is not specified, and the historical association pair is inquired again; if more than one historical association pair is inquired, traversing all the inquired historical association pairs, sequentially carrying out common keyword check, and if the check result is that the common keyword check is passed, switching to the next step; otherwise, processing the next historical association pair;
if a pair of historical association pairs is not inquired, inquiring the historical association pairs again for the historical association pair table, and not specifying inquiry conditions at the moment;
sequentially carrying out common keyword detection on all the searched historical association pairs to obtain corresponding detection results;
firstly, carrying out common keyword check on a history receiving device description h _ rec _ desc in a current history association pair and a device description d _ rec _ desc of a current IED to be designed and received:
s1: constructing a common key word set, wherein at least one key word is provided with a limiting word;
a common key word set is constructed in advance, such as including bus, bus connection, line! Bus, main transformer, protection measurement and control, protection! Protection measurement and control, measurement and control! Protection measurement and control, intelligent terminal, merging unit, 110, 220, 500, 35 and 10! 110. 1#, 2#, set A, set B, etc., wherein some of the keywords carry constraint words, such as the keyword "line! Bus "indicates that the current keyword" line "carries the constraint word" bus ", and the term between the keyword and the constraint word is used! Separating;
s2: constructing a temporary keyword array;
s3: for the historical receiving device description and the current receiving device description to be designed in the historical association pair, or the historical sending device description and the current device description to be sent in the historical association pair, aiming at each keyword in a common keyword set, if the current keyword has no limiting word, checking whether the historical receiving device description and the current receiving device description to be designed in the historical association pair, or the historical sending device description and the current device description to be sent in the historical association pair simultaneously contain the keyword; if yes, adding the key word into the temporary key word array; then, transferring to the next keyword;
if the current keyword has a limiting word, checking whether the historical receiving device description and the current receiving device description to be designed in the historical association pair or the historical sending device description and the current receiving device description in the historical association pair simultaneously contain the keyword or not, and whether the keyword and the current receiving device description simultaneously do not contain the limiting word or not; if yes, adding the key word into the temporary key word array; then, transferring to the next keyword;
if the current keyword has a limiting word, checking whether the current keyword is simultaneously contained by h _ rec _ desc and d _ rec _ desc, checking that neither h _ rec _ desc nor d _ rec _ desc simultaneously contain the limiting word, and if the two are met, adding the common keyword into the temporary keyword array; otherwise, processing the next keyword;
for example for the keyword "line! The bus and the line are simultaneously contained by h _ rec _ desc 110kV large stone protection and d _ rec _ desc 110kV bus protection, but the h _ rec _ desc does not contain the limiting word bus, and the d _ rec _ desc contains the limiting word bus, namely the h _ rec _ desc and the d _ rec _ desc do not meet the requirement and simultaneously do not contain the limiting word, and the keyword line cannot be added into the temporary keyword array;
s4: after traversing all keywords in the common keyword set, determining whether the number of elements of the temporary keyword array is greater than a set threshold (the threshold is 3), if so, indicating that the history sending equipment description in the history association pair passes the common keyword check, and then turning to step S5, otherwise, giving a check result of 'failing to pass the common keyword check', and returning;
for example, the element number of the temporary keyword array of the history receiving device description h _ rec _ desc "110 kV large cable protection" and the device description d _ rec _ desc "110 kV cable protection" of the current receiving IED to be designed is 2, which is smaller than the set threshold, and indicates that the current history association pair does not pass the common keyword check;
for another example, if the history receiving device description h _ rec _ desc is "110 kV large stone protection", and the device description d _ rec _ desc of the current receiving IED to be designed is "110 kV and flat protection", the number of elements of the temporary keyword array is 3, and they pass the keyword check;
s5: according to the steps S2-S4, common keyword check is carried out on the history sending device description in the history association pair and the current sending device description to be designed, if the number of elements of the temporary keyword array is larger than a set threshold value, the history sending device description in the history association pair passes the common keyword check, and a check result of 'passing the common keyword check' is returned, otherwise, a check result of 'failing the common keyword check' is returned;
similarly, carrying out similar common keyword check processing on the device description h _ send _ desc of the history sending IED in the current history association pair and the device description d _ send _ desc of the IED to be designed and sent currently, if h _ send _ desc and d _ send _ desc pass the common keyword check processing, returning a check result of 'passing the common keyword check', and otherwise, returning a check result of 'failing to pass the common keyword check';
and 5: for the history association pairs which pass the common keyword check, adopting a character string matching algorithm RKR-GST to respectively obtain similarity rec _ match and send _ match between the history receiving device description and the current receiving device description and between the history sending device description and the current sending device description; if both the rec _ match and the send _ match are larger than the similarity threshold, putting the current history association pair into a matching history association pair set;
for example, the history receiving device description h _ rec _ desc is "110 kV large stone protection", the device description d _ rec _ desc of the current receiving IED to be designed is "110 kV and flat protection", and the similarity rec _ match between them is 0.8;
if both the rec _ match and the send _ match are greater than the similarity threshold value of 0.65, judging that the current history association is relatively matched with the equipment descriptions of the receiving IED and the sending IED to be designed currently, and putting the current history association pair into a 'matched history association pair set';
then processing the next historical association pair, wherein the processing method is as above until all the historical association pairs are processed;
step 6: and matching each history correlation pair in the history correlation pair set, namely the final target equipment pair of the receiving IED and the sending IED to be designed currently.
Aiming at an IED to be received and an IED to be sent, analyzing corresponding ICD files to obtain equipment descriptions, equipment types, manufacturers and equipment version numbers of the IEDs, analyzing the IEDs by using existing historical SCD files to form historical association pairs, and storing the historical association pairs into a historical database; aiming at the IED to be designed and the IED to be sent, the basic information of the IED to be received and the IED to be sent is used as a query condition for querying a history association table, and history association pairs meeting the query condition are queried, so that the probability of successful matching to the same manufacturer, the same equipment and the same model is the greatest; if the same-type equipment of the same manufacturer or a plurality of same-type equipment of the same manufacturer is not found, the range is expanded to search a historical association pair; constructing a common key word set in advance, wherein part of key words are provided with limiting words; and respectively carrying out common keyword check processing on the receiving (sending) equipment description in a certain queried historical association pair and the equipment description of the receiving (sending) IED to be designed currently, and after passing the common keyword check, searching a target association pair with high equipment description matching degree through a character string matching algorithm RKR-GST to match a plurality of more accurate target equipment pairs. The method solves the technical problems of inaccurate and low efficiency in searching the target association pair in the historical database in the virtual terminal design, and improves the intelligence and efficiency of the method.
Claims (4)
1. A target device pair matching method based on IED information and common keyword check is characterized by comprising the following steps:
step 1: analyzing each IED node in the historical SCD file to obtain basic information of each IED node and an association pair owned by each IED node, and constructing a historical association table containing each equipment historical association pair in a historical SCD database; a history association pair is association information composed of basic information of a receiving IED and a sending IED;
step 2: analyzing IED nodes in an ICD file corresponding to a receiving IED and a sending IED to be designed currently to obtain each basic information of the IED nodes, and using the basic information of the receiving IED and the sending IED as a query condition for querying a history association table;
and step 3: according to the query conditions obtained in the step 2, querying whether a history association pair meeting the conditions exists in the history association table obtained in the step 1, if only one history association pair exists, taking the history association pair as a target equipment pair, storing the target equipment pair into a matching history association pair set, and exiting; otherwise, the next step is carried out;
and 4, step 4: if the historical association pair is not inquired, the inquiry condition is not specified, and the historical association pair is inquired again; if more than one historical association pair is inquired, traversing all the inquired historical association pairs, sequentially carrying out common keyword check, and if the check result is that the common keyword check is passed, switching to the next step; otherwise, processing the next historical association pair; the common keyword checking process for a history association pair is as follows:
s1: constructing a common key word set, wherein at least one key word is provided with a limiting word;
s2: constructing a temporary keyword array;
s3: for the historical receiving device description and the current receiving device description to be designed in the historical association pair, or the historical sending device description and the current device description to be sent in the historical association pair, aiming at each keyword in a common keyword set, if the current keyword has no limiting word, checking whether the historical receiving device description and the current receiving device description to be designed in the historical association pair, or the historical sending device description and the current device description to be sent in the historical association pair simultaneously contain the keyword; if yes, adding the key word into the temporary key word array; then, transferring to the next keyword;
if the current keyword has a limiting word, checking whether the historical receiving device description and the current receiving device description to be designed in the historical association pair or the historical sending device description and the current receiving device description in the historical association pair simultaneously contain the keyword or not, and whether the keyword and the current receiving device description simultaneously do not contain the limiting word or not; if yes, adding the key word into the temporary key word array; then, transferring to the next keyword;
s4: after traversing all keywords in the common keyword set, determining whether the number of elements of the temporary keyword array is greater than a set threshold, if so, indicating that the history receiving equipment in the history association pair passes the common keyword check, then turning to step S5, otherwise, giving out a check result of 'failing to pass the common keyword check', and returning;
s5: according to the steps S2-S4, common keyword check is carried out on the history sending device description in the history association pair and the current sending device description to be designed, if the number of elements of the temporary keyword array is larger than a set threshold value, the history sending device description in the history association pair passes the common keyword check, and a check result of 'passing the common keyword check' is returned, otherwise, a check result of 'failing the common keyword check' is returned;
and 5: for the history association pairs which pass the common keyword check, adopting a character string matching algorithm RKR-GST to respectively obtain the history receiving device description and the current receiving device description to be designed in the history association pairs, and the similarity rec _ match and send _ match between the history sending device description and the current sending device description to be designed in the history association pairs; if both the rec _ match and the send _ match are larger than the similarity threshold, putting the current history association pair into a matching history association pair set; then processing the next historical association pair;
step 6: and matching each history correlation pair in the history correlation pair set, namely the final target equipment pair of the receiving IED and the sending IED to be designed currently.
2. The IED information and common keyword check-based target device pair matching method according to claim 1, wherein the IED node information in step 1 comprises device description, device type, manufacturer, version number.
3. The method as claimed in claim 1, wherein the query in step 2 is a receiving device type, a receiving device manufacturer, a receiving device version number, a sending device type, a sending device manufacturer, a sending device version number of the current IED to be designed and sent.
4. The IED information and common keyword check-based target device pair matching method according to claim 1, wherein the IED node information in step 2 comprises basic information of each IED, each association pair owned by the IED node information, and a virtual connection set owned by each association pair.
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| 基于历史SCD的智能变电站虚连接辅助自动设计工具及其实现;庄先涛 等;《电工技术》;20170510;第51-54页 * |
| 智能变电站SCD中设备虚端子图形化生成系统的设计与实现;尹笋 等;《中国电力》;20160505;第49卷(第5期);第129-135页 * |
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