CN113780598B - Intelligent substation virtual terminal checking method - Google Patents
Intelligent substation virtual terminal checking method Download PDFInfo
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Abstract
The invention discloses a virtual terminal checking method of an intelligent substation, which comprises the following steps: establishing a terminal library of the IED; establishing a typical IED template; setting voltage class and wiring mode of a transformer substation, and selecting typical IED templates of different types to generate a transformer substation template; importing a substation template, a terminal library of the IED and an SCD file to be checked, and setting the equipment type, the voltage class, the interval type, the wiring mode and the branch attribute of the IED to be checked in the SCD file to be checked; comparing the virtual terminal connection relation of the IED in the SCD file to be checked with the virtual terminal connection relation in the typical IED template, and outputting a virtual terminal checking result; the invention has the advantages that: the verification of the intelligent substation virtual terminal is realized, and the correctness and the integrity of the connection line of the virtual terminal are automatically judged, so that the manual inspection period is greatly shortened, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of intelligent substation operation and maintenance, in particular to an intelligent substation virtual terminal checking method.
Background
The connection relation of the intelligent substation IED virtual terminals influences the connection relation of secondary circuits such as tripping and closing, sampling and the like of the intelligent substation, and is very important for safe operation of the intelligent substation. Therefore, an organization expert typically reviews the virtual terminals of the IED before the intelligent substation is put into operation. Because the substations with different voltage levels have different main wiring modes, and one substation has a plurality of outgoing lines, especially for the substations with the voltage of 330kV or above, the virtual terminal connection line of the IED is more complicated, and in the present stage, the virtual terminal connection line is manually checked to be correct or not, so that the workload is high, and errors are easily missed.
Chinese patent grant publication No. CN109710809B, relate to a SCD file virtual terminal automatic connection method based on expert database, the method includes: establishing a format and a generation mode of a virtual terminal expert database; when the existing SCD is learned to automatically create the virtual terminal expert database, the new virtual terminal information is compared with and selected from the information stored in the established virtual terminal expert database; establishing a virtual terminal connection expert database; SCD virtual terminal automatic connection based on virtual terminal connection expert library. According to the invention, by establishing the virtual terminal connection expert library, a batch design method can be adopted to select corresponding templates for implementation, and the SCD file can be manufactured quickly and efficiently; under the condition that the virtual terminal connection expert database is continuously optimized, the accuracy of SCD file manufacturing is also continuously improved, and the efficiency of manufacturing SCD by designers is greatly improved. The invention belongs to automatic connection of virtual terminals, which can not realize checking of the virtual terminals in an SCD file. To sum up, the prior art does not realize the verification of the virtual terminal of the intelligent substation, and can not automatically judge the correctness and the integrity of the connection line of the virtual terminal, so that the manual inspection period is long and the working efficiency is low.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the intelligent substation virtual terminal checking method, so that the checking of the intelligent substation virtual terminal is realized, the correctness and the integrity of the virtual terminal connection line are automatically judged, the manual checking period is greatly shortened, and the working efficiency is improved.
The invention solves the technical problems by the following technical means: an intelligent substation virtual terminal checking method comprises the following steps:
step 1: according to virtual terminals of relay protection specifications, terminal libraries of various IEDs with different equipment types, different voltage classes, different interval types and different wiring modes are established;
step 2: establishing various typical IED templates of different equipment types, different voltage classes, different interval types, different wiring modes and different associated virtual terminal connection relations;
step 3: setting voltage class and wiring mode of a transformer substation, and selecting typical IED templates of different types to generate a transformer substation template;
step 4: importing a substation template, a terminal library of the IED and an SCD file to be checked, and setting the equipment type, the voltage class, the interval type, the wiring mode and the branch attribute of the IED to be checked in the SCD file to be checked;
step 5: and comparing the virtual terminal connection relation of the IED in the SCD file to be checked with the virtual terminal connection relation in the typical IED template, and outputting a virtual terminal checking result.
According to the method, the typical IED template is established, the voltage class and the wiring mode of the transformer substation are set, different types of typical IED templates are selected to generate the transformer substation template, the virtual terminal connection relation of the IED in the SCD file to be checked is compared with the virtual terminal connection relation in the typical IED template, the virtual terminal checking result is output, the checking of the virtual terminal of the intelligent transformer substation is realized, the correctness and the integrity of the virtual terminal connection are automatically judged, and therefore the manual checking period is greatly shortened and the working efficiency is improved.
Further, the virtual terminals of the terminal library of the IED include an SV transmitting terminal, an SV receiving terminal, a GOOSE transmitting terminal, and a GOOSE receiving terminal.
Further, the terminal library of the IED comprises a plurality of virtual terminals of different manufacturers, different versions and different models.
Further, a regular expression of a bus differential branch is established for the IED of the bus protection in the terminal library of the IED, wherein the bus protection refers to that the interval type is a bus and the equipment type is protection.
Still further, the step 1 further includes: each virtual terminal in the terminal library of the IED is integrated and built into a terminal dictionary according to the virtual terminal description of the virtual terminal and the standard virtual terminal description of the virtual terminal by different manufacturers, wherein the terminal dictionary comprises SV transmitting terminals, SV receiving terminals, GOOSE transmitting terminals and standard virtual terminal descriptions of the GOOSE receiving terminals.
Further, the building process of the typical IED template in the step 2 is as follows:
according to the equipment type, voltage class, interval type and wiring mode of the imported IED, matching the terminal library of the IED; extracting the connection relation of the relevant virtual terminals of the imported IED according to the matching result; and after identifying the virtual terminals of the imported IED and the corresponding manufacturer, version and model virtual terminals in the terminal library of the IED in the matching process, modifying and replacing the virtual terminal description of the related virtual terminal connection relationship of the imported IED with the corresponding standard virtual terminal description in the terminal library of the IED.
Further, the generating process of the substation template in the step 3 is as follows:
setting the voltage class and the wiring mode of the transformer substation, selecting a typical IED template which is the same as or lower than the voltage class of the transformer substation according to the voltage class and the wiring mode of the transformer substation, and generating a transformer substation template according to the wiring mode of the typical IED template.
Still further, the step 5 includes:
step 501: matching a terminal library of the IED and a typical IED template in a transformer substation template according to the equipment type, the voltage class, the interval type and the wiring mode of the IED in the SCD file to be checked;
step 502: extracting the connection relation of the associated virtual terminals of the IED in the SCD file to be checked, matching each virtual terminal in the connection relation of the associated virtual terminals of the IED in the SCD file to be checked with the terminal dictionary, and replacing the modification of each virtual terminal description in the connection relation of the associated virtual terminals with the standard virtual terminal description in the matched terminal dictionary;
step 503: traversing the connection relation of the associated virtual terminals of the IED in the SCD file to be checked, and if the sending terminal and the receiving terminal of the connection relation of the virtual terminals of the IED in the SCD file to be checked are matched with the upper terminal dictionary, determining that the connection relation of the virtual terminals is non-checking;
if one of the sending terminals or the receiving terminals of the virtual terminal connection relation of the IED in the SCD file to be checked is matched with the terminal dictionary, the sending terminal description of the virtual terminal connection relation in a typical IED template is matched according to the sending terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, the receiving terminal description of the virtual terminal connection relation in the typical IED template is matched according to the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, the matching is successful, the virtual terminal connection relation is dictionary-free, and the unsuccessful matching is attention;
if the transmitting terminal or the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked can be matched with the terminal dictionary, the transmitting terminal description of the virtual terminal connection relation in the typical IED template is matched according to the transmitting terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, the receiving terminal description of the virtual terminal connection relation in the typical IED template is matched according to the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, and the matching is successful, the virtual terminal connection relation is normal check; if the matching is failed, if one of the sending terminal and the receiving terminal is successful, the connection relation of the virtual terminal is misconnection, and if the matching is not successful, the virtual terminal is multiple.
Still further, the step 303 further includes:
if the IED in the SCD file to be checked is bus protection, matching the regular expression of the bus-differential branch according to the branch attribute of the typical IED template matched with the IED, and modifying the receiving terminal description of the virtual terminal connection relation of the IED in the SCD file to be checked according to the regular expression of the bus-differential branch, if the matching is successful, the normal checking is performed; if the typical IED template matched with the IED in the SCD file to be checked is bus protection, matching the regular expression of the bus-differential branch according to the branch attribute of the IED in the SCD file to be checked, and modifying the transmission terminal description of the virtual terminal connection relation of the IED in the SCD file to be checked according to the regular expression of the bus-differential branch, and if the matching is successful, performing normal check.
Still further, the step 303 further includes:
in the process that the transmission terminals of the virtual terminal connection relations of the IEDs in the SCD file to be checked are matched with the transmission terminal descriptions of the virtual terminal connection relations in the typical IED template, if the matching is failed, if the transmission terminals of the virtual terminal connection relations of the IEDs in the SCD file to be checked are in the same special terminal subset with the transmission terminal descriptions of the virtual terminal connection relations in the IED template, the matching is still judged to be successful; in the process of matching the receiving terminal description of the virtual terminal connection relation in the IED in the SCD file to be checked with the receiving terminal description of the virtual terminal connection relation in the typical IED template, if the matching fails, the matching is still judged to be successful if the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked and the receiving terminal description of the virtual terminal connection relation in the IED template are in the same special terminal subset.
The invention has the advantages that:
(1) According to the method, the typical IED template is established, the voltage class and the wiring mode of the transformer substation are set, different types of typical IED templates are selected to generate the transformer substation template, the virtual terminal connection relation of the IED in the SCD file to be checked is compared with the virtual terminal connection relation in the typical IED template, the virtual terminal checking result is output, the checking of the virtual terminal of the intelligent transformer substation is realized, the correctness and the integrity of the virtual terminal connection are automatically judged, and therefore the manual checking period is greatly shortened and the working efficiency is improved.
(2) The intelligent substation virtual terminal verification method and the intelligent substation virtual terminal verification system can output the verification result of the intelligent substation virtual terminal as a visual report, are convenient for workers to check, and improve working efficiency.
Drawings
Fig. 1 is a flowchart of an intelligent substation virtual terminal checking method disclosed in an embodiment of the invention;
fig. 2 is a diagram illustrating a verification logic process in an intelligent substation virtual terminal verification method according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the method for checking the virtual terminal of the intelligent substation comprises the following steps:
step 1: according to virtual terminals of relay protection specifications, terminal libraries of various IEDs with different equipment types, different voltage classes, different interval types and different wiring modes are established;
the virtual terminals of the terminal library of the IED include SV transmit terminals, SV receive terminals, GOOSE transmit terminals, and GOOSE receive terminals. The regular expression of the bus differential branch is built in the terminal library of the IED for the IED, the bus protection refers to that the interval type is a bus, the equipment type is protection, the bus protection has 24 branches in practical application, any branch can be connected when the bus protection is connected, for example, a branch six is stored in a typical IED template, the IED (bus protection) to be checked is connected with a branch seven, the two cannot necessarily be matched when being matched, but the two cannot be directly judged to be in error in matching, because the branch seven can be connected theoretically, although the branch seven is not connected in the typical IED template, the regular expression is set, so that the correct judgment can be carried out under the condition. And 24 branches, and building regular expressions corresponding to the 24 branches.
The terminal library of the IED comprises a plurality of virtual terminals of different manufacturers, different versions and different models, and the descriptions of the virtual terminals may have some differences among different manufacturers, so that the habit description mode of each virtual terminal by different manufacturers needs to be stored in the terminal library of the IED so as to match the same virtual terminal description in SCD files imported by different manufacturers with the IED typical template when the later verification is performed. Thus, each virtual terminal in the terminal library of the IED is built into a terminal dictionary according to the integration of the virtual terminal description of the virtual terminal and the standard virtual terminal description of the virtual terminal by different manufacturers, and the terminal dictionary includes the SV transmitting terminal, the SV receiving terminal, the GOOSE transmitting terminal and the standard virtual terminal description of the GOOSE receiving terminal.
Step 2: establishing various typical IED templates of different equipment types, different voltage classes, different interval types, different wiring modes and different associated virtual terminal connection relations; the typical IED template building process is:
according to the equipment type, voltage class, interval type and wiring mode of the imported IED, matching the terminal library of the IED; extracting the connection relation of the relevant virtual terminals of the imported IED according to the matching result; and after identifying the virtual terminals of the imported IED and the corresponding manufacturer, version and model virtual terminals in the terminal library of the IED in the matching process, modifying and replacing the virtual terminal description of the related virtual terminal connection relationship of the imported IED with the corresponding standard virtual terminal description in the terminal library of the IED.
Step 3: setting voltage class and wiring mode of a transformer substation, and selecting typical IED templates of different types to generate a transformer substation template; the generation process of the transformer substation template comprises the following steps:
setting the voltage class and the wiring mode of the transformer substation, selecting a typical IED template which is the same as or lower than the voltage class of the transformer substation according to the voltage class and the wiring mode of the transformer substation, and generating a transformer substation template according to the wiring mode of the typical IED template.
Step 4: importing a substation template, a terminal library of the IED and an SCD file to be checked, and setting the equipment type, the voltage class, the interval type, the wiring mode and the branch attribute of the IED to be checked in the SCD file to be checked;
step 5: and comparing the virtual terminal connection relation of the IED in the SCD file to be checked with the virtual terminal connection relation in the typical IED template, and outputting a virtual terminal checking result. As shown in fig. 2, the specific verification process is:
step 501: matching a terminal library of the IED and a typical IED template in a transformer substation template according to the equipment type, the voltage class, the interval type and the wiring mode of the IED in the SCD file to be checked;
step 502: extracting the connection relation of the associated virtual terminals of the IED in the SCD file to be checked, matching each virtual terminal in the connection relation of the associated virtual terminals of the IED in the SCD file to be checked with the terminal dictionary, and replacing the modification of each virtual terminal description in the connection relation of the associated virtual terminals with the standard virtual terminal description in the matched terminal dictionary; the purpose of this is to normalize the descriptions of the virtual terminals in the associated virtual terminal connection relationships of the IEDs in the SCD files to be verified, and because the descriptions of the same virtual terminal may be slightly different due to different manufacturers, the descriptions of the virtual terminals in the associated virtual terminal connection relationships are modified and replaced by the standard virtual terminal descriptions in the matched terminal dictionary, so that the descriptions of the virtual terminals in the associated virtual terminal connection relationships of the IEDs in each SCD file to be verified are normalized, and the later verification is facilitated.
Step 503: traversing the connection relation of the associated virtual terminals of the IED in the SCD file to be checked, and if the sending terminal and the receiving terminal of the connection relation of the virtual terminals of the IED in the SCD file to be checked are matched with the upper terminal dictionary, determining that the connection relation of the virtual terminals is non-checking; for example, in the virtual terminal connection relationship of the IED in the SCD file to be verified, the transmitting terminal a is connected to the receiving terminal a, but the transmitting terminal a and the receiving terminal a are not found in the terminal dictionary, which means that these two virtual terminals do not exist in the terminal library of the IED at all, so the virtual terminal connection relationship is non-verified.
If one of the sending terminals or the receiving terminals of the virtual terminal connection relation of the IED in the SCD file to be checked is matched with the terminal dictionary, the sending terminal description of the virtual terminal connection relation in the typical IED template is matched according to the sending terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, the receiving terminal description of the virtual terminal connection relation in the typical IED template is matched according to the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, the matching is successful, the virtual terminal connection relation is dictionary-free, and the unsuccessful matching is attention.
For example, the transmission terminal a in the virtual terminal connection relationship of the IED in the SCD file to be checked is connected to the receiving terminal a, the receiving terminal a is not found in the terminal dictionary, which indicates that one of the transmission terminal or the receiving terminal of the virtual terminal connection relationship of the IED in the SCD file to be checked is matched with the terminal dictionary, at this time, according to the transmission terminal a of the virtual terminal connection relationship of the IED in the SCD file to be checked, the transmission terminal description of the virtual terminal connection relationship in the typical IED template is matched successfully, the virtual terminal connection relationship is dictionary-free, so even if the matching is successful, the receiving terminal thereof is not present in the terminal dictionary, so the matching is called dictionary-free, and the unsuccessful matching is attention, which indicates that the abnormal item is reminded to be manually focused.
If the transmitting terminal or the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked can be matched with the terminal dictionary, the transmitting terminal description of the virtual terminal connection relation in the typical IED template is matched according to the transmitting terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, the receiving terminal description of the virtual terminal connection relation in the typical IED template is matched according to the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, and the matching is successful, the virtual terminal connection relation is normal check; if the matching is failed, if one of the sending terminal and the receiving terminal is successful, the connection relation of the virtual terminal is misconnection, and if the matching is not successful, the virtual terminal is multiple.
For example, the virtual terminal connection relationship of the typical IED template has a connection hop a, a connection hop B, a connection hop C, and the virtual terminal connection relationship of the IED in the SCD file to be checked is a connection hop a, and the transmitting terminal (hop a) and the receiving terminal (hop a) can be both found in the terminal dictionary, so that they can be matched with the terminal dictionary, the transmitting terminal description of the virtual terminal connection relationship in the typical IED template is unmatched according to the transmitting terminal of the virtual terminal connection relationship of the IED in the SCD file to be checked, and the receiving terminal description of the virtual terminal connection relationship in the typical IED template is unmatched according to the receiving terminal of the virtual terminal connection relationship of the IED in the SCD file to be checked, and the virtual terminal connection relationship is normal check. The connection relation of the virtual terminals of the IEDs in the SCD file to be checked is jump A connection jump C, and the sending terminal (jump A) and the receiving terminal (jump C) can be found in the terminal dictionary, so that the connection relation can be matched with the terminal dictionary, but only one of the virtual terminals of the IEDs in the SCD file to be checked can be matched with the terminal in the connection relation of the virtual terminals in a typical IED template when the virtual terminals of the IEDs in the SCD file to be checked are matched, the two cannot be matched at the same time, and the misconnection is judged. When the virtual terminal connection relation of the IED in the SCD file to be checked is the jump E connection jump F, although the jump E and the jump F can be found in the terminal dictionary and can be matched with the terminal dictionary, when the virtual terminal of the IED in the SCD file to be checked is matched with the terminal in the virtual terminal connection relation in the typical IED template, only the jump A connection jump A, the jump B connection jump B and the jump C connection jump C are connected, and the jump E is not matched, and the jump F is not matched, thereby belonging to multiple connections.
If the IED in the SCD file to be checked is bus protection, matching the regular expression of the bus-difference branch according to the branch attribute of the typical IED template matched with the IED, and modifying the receiving terminal description of the virtual terminal connection relation of the IED in the SCD file to be checked according to the regular expression of the bus-difference branch, if the matching is successful, the checking is normal, because the virtual terminal cannot be described by using the standard virtual terminal description under the condition of bus protection, the description of the regular expression needs to be added, and thus, the regular expression of the bus-difference branch can be corresponding to the virtual terminal description of the bus-difference branch directly when the virtual terminal of the bus protection is matched; if the typical IED template matched with the IED in the SCD file to be checked is bus protection, matching the regular expression of the bus-differential branch according to the branch attribute of the IED in the SCD file to be checked, and modifying the transmission terminal description of the virtual terminal connection relation of the IED in the SCD file to be checked according to the regular expression of the bus-differential branch, and if the matching is successful, performing normal check. It has been described that in practical application, bus protection has 24 branches, and any branch can be connected when the bus protection is wired, for example, a branch six is stored in a typical IED template, an IED (bus protection) to be verified is a branch seven, and the two branches are not necessarily matched when matched, but cannot be directly judged to be in a matching error, because in theory, the branch seven is also possible, and although the branch seven is not connected in the typical IED template, a regular expression is set, so that the correct judgment can be also performed in this case. And 24 branches, and building regular expressions corresponding to the 24 branches. In this way, erroneous judgment of the system under special conditions of bus protection is avoided. The regular expression is set according to the actual branch condition, and will not be described here.
In the process that the transmission terminals of the virtual terminal connection relations of the IEDs in the SCD file to be checked are matched with the transmission terminal descriptions of the virtual terminal connection relations in the typical IED template, if the matching is failed, if the transmission terminals of the virtual terminal connection relations of the IEDs in the SCD file to be checked are in the same special terminal subset with the transmission terminal descriptions of the virtual terminal connection relations in the IED template, the matching is still judged to be successful; in the process of matching the receiving terminal description of the virtual terminal connection relation in the IED in the SCD file to be checked with the receiving terminal description of the virtual terminal connection relation in the typical IED template, if the matching fails, the matching is still judged to be successful if the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked and the receiving terminal description of the virtual terminal connection relation in the IED template are in the same special terminal subset.
For example, descriptions of the terminals of the B-breaker reclosing 1, the B-breaker reclosing 2 and the B-breaker reclosing 3 are respectively established in the terminal library, the B-breaker reclosing 1, the B-breaker reclosing 2 or the B-breaker reclosing 3 are all right when wiring, but in practical application, when the typical IED template is saved, one typical IED template can only be connected with one of the terminals, for example, the B-breaker reclosing 1 is connected with the typical IED template, but the B-breaker reclosing 2 is connected with the virtual terminal connection relationship of the IED in the SCD file to be checked, according to the logic described above, here, because the B-breaker reclosing 1 is connected with the virtual terminal connection relationship of the IED in the SCD file to be checked, the B-breaker reclosing 2 is judged to be out of match, however, in practice, this is not wrong, so for this case, a special end subset is established, the reclosing 1 of the circuit breaker B with the virtual terminal B with the same meaning, the reclosing 2 of the circuit breaker B with the virtual terminal B, and the reclosing 3 of the circuit breaker B are all placed in one special end subset, so in the process that the transmission terminal of the virtual terminal connection relationship of the IED in the SCD file to be checked is matched with the description of the transmission terminal of the virtual terminal connection relationship in the typical IED template, when the matching fails, the reclosing 1 of the circuit breaker B with the virtual terminal connection relationship of the IED in the SCD file to be checked is still determined to be successful because the reclosing 2 of the circuit breaker B with the virtual terminal connection relationship of the IED in the IED template is in the same special end subset.
Through the technical scheme, the method and the device establish the typical IED template, set the voltage class and the wiring mode of the transformer substation, select different types of typical IED templates to generate the transformer substation template, compare the virtual terminal connection relation of the IED in the SCD file to be checked with the virtual terminal connection relation in the typical IED template, output the virtual terminal checking result, realize the checking of the virtual terminal of the intelligent transformer substation, automatically judge the correctness and the integrity of the virtual terminal connection line, and greatly shorten the manual checking period and improve the working efficiency.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The intelligent substation virtual terminal checking method is characterized by comprising the following steps of:
step 1: according to virtual terminals of relay protection specifications, terminal libraries of various IEDs with different equipment types, different voltage classes, different interval types and different wiring modes are established; the virtual terminals of the terminal library of the IED comprise an SV transmitting terminal, an SV receiving terminal, a GOOSE transmitting terminal and a GOOSE receiving terminal; the terminal library of the IED comprises a plurality of virtual terminals of different manufacturers, different versions and different models; each virtual terminal in the terminal library of the IED is integrated and built into a terminal dictionary according to the virtual terminal description of the virtual terminal and the standard virtual terminal description of the virtual terminal by different manufacturers, wherein the terminal dictionary comprises SV sending terminals, SV receiving terminals, GOOSE sending terminals and standard virtual terminal descriptions of the GOOSE receiving terminals;
step 2: establishing various typical IED templates of different equipment types, different voltage classes, different interval types, different wiring modes and different associated virtual terminal connection relations; the typical IED template building process is: according to the equipment type, voltage class, interval type and wiring mode of the imported IED, matching the terminal library of the IED; extracting the connection relation of the relevant virtual terminals of the imported IED according to the matching result; after identifying the virtual terminals of the imported IED and the corresponding manufacturer, version and model virtual terminals in the terminal library of the IED in the matching process, modifying and replacing the virtual terminal description of the connection relation of the imported IED associated virtual terminals with the corresponding standard virtual terminal description in the terminal library of the IED;
step 3: setting voltage class and wiring mode of a transformer substation, and selecting typical IED templates of different types to generate a transformer substation template;
step 4: importing a substation template, a terminal library of the IED and an SCD file to be checked, and setting the equipment type, the voltage class, the interval type, the wiring mode and the branch attribute of the IED to be checked in the SCD file to be checked;
step 5: and matching a terminal library of the IED and a typical IED template in a transformer substation template according to the equipment type, the voltage class, the interval type and the wiring mode of the IED in the SCD file to be checked, comparing the virtual terminal connection relation of the IED in the SCD file to be checked with the virtual terminal connection relation in the typical IED template, and outputting a virtual terminal checking result.
2. The intelligent substation virtual terminal checking method according to claim 1, wherein regular expressions of bus differential branches are established for the IED with bus protection in a terminal library of the IED, wherein the bus protection refers to that an interval type is a bus, and a device type is protection.
3. The method for checking the virtual terminal of the intelligent substation according to claim 1, wherein the generating process of the substation template in the step 3 is as follows:
setting the voltage class and the wiring mode of the transformer substation, selecting a typical IED template which is the same as or lower than the voltage class of the transformer substation according to the voltage class and the wiring mode of the transformer substation, and generating a transformer substation template according to the wiring mode of the typical IED template.
4. The method for checking virtual terminals of an intelligent substation according to claim 1, wherein the step 5 includes:
step 501: matching a terminal library of the IED and a typical IED template in a transformer substation template according to the equipment type, the voltage class, the interval type and the wiring mode of the IED in the SCD file to be checked;
step 502: extracting the connection relation of the associated virtual terminals of the IED in the SCD file to be checked, matching each virtual terminal in the connection relation of the associated virtual terminals of the IED in the SCD file to be checked with the terminal dictionary, and replacing the modification of each virtual terminal description in the connection relation of the associated virtual terminals with the standard virtual terminal description in the matched terminal dictionary;
step 503: traversing the connection relation of the associated virtual terminals of the IED in the SCD file to be checked, and if the sending terminal and the receiving terminal of the connection relation of the virtual terminals of the IED in the SCD file to be checked are matched with the upper terminal dictionary, determining that the connection relation of the virtual terminals is non-checking;
if one of the sending terminals or the receiving terminals of the virtual terminal connection relation of the IED in the SCD file to be checked is matched with the terminal dictionary, the sending terminal description of the virtual terminal connection relation in a typical IED template is matched according to the sending terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, the receiving terminal description of the virtual terminal connection relation in the typical IED template is matched according to the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, the matching is successful, the virtual terminal connection relation is dictionary-free, and the unsuccessful matching is attention;
if the transmitting terminal or the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked can be matched with the terminal dictionary, the transmitting terminal description of the virtual terminal connection relation in the typical IED template is matched according to the transmitting terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, the receiving terminal description of the virtual terminal connection relation in the typical IED template is matched according to the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked, and the matching is successful, the virtual terminal connection relation is normal check; if the matching is failed, if one of the sending terminal and the receiving terminal is successful, the connection relation of the virtual terminal is misconnection, and if the matching is not successful, the virtual terminal is multiple.
5. The method for checking virtual terminals of an intelligent substation according to claim 4, wherein the step 503 further includes:
if the IED in the SCD file to be checked is bus protection, matching the regular expression of the bus-differential branch according to the branch attribute of the typical IED template matched with the IED, and modifying the receiving terminal description of the virtual terminal connection relation of the IED in the SCD file to be checked according to the regular expression of the bus-differential branch, if the matching is successful, the normal checking is performed; if the typical IED template matched with the IED in the SCD file to be checked is bus protection, matching the regular expression of the bus-differential branch according to the branch attribute of the IED in the SCD file to be checked, and modifying the transmission terminal description of the virtual terminal connection relation of the IED in the SCD file to be checked according to the regular expression of the bus-differential branch, and if the matching is successful, performing normal check.
6. The method for checking virtual terminals of an intelligent substation according to claim 5, wherein the step 503 further includes:
in the process that the transmission terminals of the virtual terminal connection relations of the IEDs in the SCD file to be checked are matched with the transmission terminal descriptions of the virtual terminal connection relations in the typical IED template, if the matching is failed, if the transmission terminals of the virtual terminal connection relations of the IEDs in the SCD file to be checked are in the same special terminal subset with the transmission terminal descriptions of the virtual terminal connection relations in the IED template, the matching is still judged to be successful; in the process of matching the receiving terminal description of the virtual terminal connection relation in the IED in the SCD file to be checked with the receiving terminal description of the virtual terminal connection relation in the typical IED template, if the matching fails, the matching is still judged to be successful if the receiving terminal of the virtual terminal connection relation of the IED in the SCD file to be checked and the receiving terminal description of the virtual terminal connection relation in the IED template are in the same special terminal subset.
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