1. A virtual circuit mirror image simulation transmission method based on an intelligent maintenance platform is characterized by comprising the following steps:

step 1: dividing test domains according to the sections of the newly-added IED equipment, respectively summarizing SCD files of the newly-added IED equipment in each test domain, carrying out graphic modular processing on all SCD information associated with the SCD files, and importing graphic module information into a virtual machine system;

step 2: the virtual machine system utilizes graphical SCD software to automatically search out other IED equipment associated with the IED equipment to be tested, sets a central IED through an IED list, displays a logical link diagram of the central IED, configures a physical IED and a virtual IED in the association diagram, and automatically imports SV and GOOSE parameter configuration information associated with the physical IED and the virtual IED;

and step 3: and simulating the reconstruction and expansion equipment, the direct association equipment and the indirect association equipment by adopting a mirror image virtual machine, and confirming the correctness of virtual circuit connection among the equipment through simulation transmission.

2. The virtual circuit mirror image simulation transmission method based on the intelligent maintenance platform is characterized in that: the virtual machine system comprises a link logic relationship, a virtual loop node diagram, an optical fiber outer chain diagram, an SV sending/receiving instruction diagram, a GOOSE sending/receiving instruction diagram, a report transceiving control module, a log generation control module and a data mapping relationship set diagram.

3. The virtual circuit mirror image simulation transmission method based on the intelligent maintenance platform is characterized in that: step 2 comprises the following substeps:

step 2.1, setting a test mode of a virtual machine, namely physical equipment by importing a new SCD file: automatically searching other IED equipment associated with the IED equipment to be tested according to the SCD file, setting the central equipment as physical equipment, and setting the equipment associated with the central equipment as virtual equipment;

step 2.2, setting a virtual machine-virtual machine test mode by importing new and old SCD files: automatically searching other IED equipment associated with the IED equipment to be tested according to the SCD file, setting the central equipment as virtual equipment A, and setting the equipment associated with the central equipment as virtual equipment B;

and 2.3, detecting the message in the testing process by setting an SV \ GOOSE output mode, and realizing external characteristic testing of the IED equipment.

4. The virtual circuit mirror image simulation transmission method based on the intelligent maintenance platform is characterized in that: the SV and the GOOSE respectively have two modes of automatic test and manual test, wherein the SV manual test outputs a sampling value by manually modifying the amplitude, phase angle and frequency of one phase or multiple phases, and the automatic test triggers a fault message at regular time by adding multiple states; the GOOSE manual test manually triggers GOOSE displacement, the displacement is automatically triggered at certain time intervals in an automatic mode, the GOOSE displacement of a plurality of items of a control block is triggered at one time, and a single virtual IED and a plurality of virtual IEDs are automatically triggered.

5. The virtual circuit mirror image simulation transmission method based on the intelligent overhaul platform is characterized in that: and 3, carrying out comprehensive boundary determination according to the virtual loop relationship among the reconstruction and extension equipment, the direct association equipment and the indirect association equipment and the change condition of the sub CRC.

6. The virtual circuit mirror image simulation transmission method based on the intelligent overhaul platform as claimed in claim 5, wherein the virtual circuit mirror image simulation transmission method comprises the following steps: in the step 3:

and (3) testing the simulated transmission of the reconstruction and extension equipment and the directly associated equipment: virtual machine A virtual reconstruction and expansion equipment and virtual machine B virtual direct correlation equipment, wherein the virtual machine A and the virtual machine B import the reconstructed and expanded SCD file and perform virtual loop simulation transmission;

simulated transmission testing for directly associated equipment versus indirectly associated equipment: virtual machine A virtual direct correlation equipment and virtual machine B virtual indirect correlation equipment, wherein the virtual machine A and the virtual machine B import the reconstructed and expanded SCD file to perform virtual loop simulation transmission;

or, for the simulation transmission test of the direct correlation equipment and the indirect correlation equipment: virtual machine A virtual direct correlation equipment and virtual machine B virtual indirect correlation equipment, wherein the virtual machine A imports the SCD file after reconstruction and expansion, and the virtual machine B imports the SCD file before reconstruction and expansion to perform virtual loop simulation transmission.

7. The virtual circuit mirror image simulation transmission method based on the intelligent overhaul platform as claimed in claim 6, wherein the virtual circuit mirror image simulation transmission method comprises the following steps: and step three, automatically issuing a virtual circuit transmission inspection report after the transmission is correct, and generating a reproducible type simulation transmission template.

8. The virtual circuit mirror image simulation transmission method based on the intelligent overhaul platform as claimed in claim 7, wherein the virtual circuit mirror image simulation transmission method comprises the following steps: if the transmission fails, automatically entering a self-checking program:

firstly, comprehensively checking whether the virtual loop communication parameters between the IED equipment to be tested and the associated equipment are wrong or not, if the self-checking of the step is passed, reconstructing a virtual machine A and a virtual machine B, entering an interface to be tested again, if the self-checking of the step is not passed, performing virtual machine virtual loop connection logic self-checking, if the self-checking of the step is passed, re-determining a testing boundary, checking the equipment to be tested again, and then continuing entering a group machine and testing interface; if the self-check in the step is not passed, SCD file consistency check is carried out by comparing the SCD configuration file downloaded to the virtual machine with the SCD configuration file in the database, so as to further confirm whether transmission failure is caused by file damage in the downloading process of the SCD configuration file; and if the consistency check in the step passes, automatically associating the reconstruction and extension interval IED equipment with other related IED equipment again, and entering a test boundary determining link again.

Background

With the gradual maturity of the intelligent substation technology, the intelligent substation is gradually transformed in the whole country. However, the existing transformer substation generally has heavy load and difficult power failure, technical transformation is carried out within short and precious power failure time, and the problems of good safety and reliability and transformation efficiency are also required to be considered. Under such a situation, the transformation of the secondary equipment of the intelligent substation faces many challenges and pain points. Firstly, the reconstruction and extension project involves a large amount of debugging work of the newly added equipment. Taking the transformation of the station control layer system as an example, because the involvement range is wide, 2-3 days are needed for establishing and debugging core engineering data when only one device is transformed. Secondly, the construction period is short and the task is heavy. Taking the four-remote verification as an example, every time one bay level device is added, hundreds to thousands of times of manual information verification are needed, and the working progress of the reconstruction and extension project of the intelligent substation is seriously influenced. Finally, a lot of workload is added to the check-up work as well. Under the traditional mode, the inspection and acceptance personnel need to carry out the virtual circuit check-up of secondary equipment and the actual transmission test of smart machine to the scene equipment one by one, and the operation is wasted time and energy, and the artificial interference degree is great, can't get rid of the false retrieval that leads to because of staff's carelessness and miss the inspection.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to solve the technical problem of providing a virtual circuit mirror image simulation transmission method based on an intelligent maintenance platform, and intelligent verification is used for replacing the traditional verification mode, so that the accuracy of virtual circuit connection verification between intelligent equipment is greatly improved, the working efficiency is also improved, and the human resource cost is saved.

In order to solve the technical problems, the invention adopts the following technical scheme: a virtual circuit mirror image simulation transmission method based on an intelligent maintenance platform comprises the following steps:

step 1: dividing test domains according to the sections of the newly-added IED equipment, respectively summarizing SCD files of the newly-added IED equipment in each test domain, carrying out graphic modular processing on all SCD information associated with the SCD files, and importing graphic module information into a virtual machine system;

step 2: the virtual machine system utilizes graphical SCD software to automatically search out other IED equipment associated with the IED equipment to be tested, sets a central IED through an IED list, displays a logical link diagram of the central IED, configures a physical IED and a virtual IED in the association diagram, and automatically imports SV and GOOSE parameter configuration information associated with the physical IED and the virtual IED;

and step 3: and simulating the reconstruction and expansion equipment, the direct association equipment and the indirect association equipment by adopting a mirror image virtual machine, and confirming the correctness of virtual circuit connection among the equipment through simulation transmission.

Preferably, the virtual machine system includes a link logical relationship, a virtual loop node map, an optical fiber outer link map, an SV sending/receiving instruction map, a GOOSE sending/receiving instruction map, a report transceiving control module, a log generation control module, and a data mapping relationship set map.

Preferably, step 2 comprises the following substeps:

step 2.1, setting a test mode of a virtual machine, namely physical equipment by importing a new SCD file: automatically searching other IED equipment associated with the IED equipment to be tested according to the SCD file, setting the central equipment as physical equipment, and setting the equipment associated with the central equipment as virtual equipment;

step 2.2, setting a virtual machine-virtual machine test mode by importing new and old SCD files: automatically searching other IED equipment associated with the IED equipment to be tested according to the SCD file, setting the central equipment as virtual equipment A, and setting the equipment associated with the central equipment as virtual equipment B;

and 2.3, detecting the message in the testing process by setting an SV \ GOOSE output mode, and realizing external characteristic testing of the IED equipment.

Preferably, the SV and the GOOSE respectively have two modes of automatic testing and manual testing, the SV manual testing outputs sampling values by manually modifying amplitude, phase angle and frequency of one phase or multiple phases, and the automatic testing triggers fault messages at regular time by adding multiple states; the GOOSE manual test manually triggers GOOSE displacement, the displacement is automatically triggered at certain time intervals in an automatic mode, the GOOSE displacement of a plurality of items of a control block is triggered at one time, and a single virtual IED and a plurality of virtual IEDs are automatically triggered.

Preferably, in step 3, comprehensive boundary determination is performed according to the virtual loop relationship among the reconstruction and extension device, the direct association device, and the indirect association device, and the change condition of the sub CRC.

Preferably, in step 3:

and (3) testing the simulated transmission of the reconstruction and extension equipment and the directly associated equipment: virtual machine A virtual reconstruction and expansion equipment and virtual machine B virtual direct correlation equipment, wherein the virtual machine A and the virtual machine B import the reconstructed and expanded SCD file and perform virtual loop simulation transmission;

simulated transmission testing for directly associated equipment versus indirectly associated equipment: virtual machine A virtual direct correlation equipment and virtual machine B virtual indirect correlation equipment, wherein the virtual machine A and the virtual machine B import the reconstructed and expanded SCD file to perform virtual loop simulation transmission;

or, for the simulation transmission test of the direct correlation equipment and the indirect correlation equipment: virtual machine A virtual direct correlation equipment and virtual machine B virtual indirect correlation equipment, wherein the virtual machine A imports the SCD file after reconstruction and expansion, and the virtual machine B imports the SCD file before reconstruction and expansion to perform virtual loop simulation transmission.

Preferably, after the transmission in the step three is correct, a virtual circuit transmission inspection report is automatically issued, and a reproducible type simulation transmission template is generated.

Preferably, if the transmission fails, the self-test program is automatically entered:

firstly, comprehensively checking whether the virtual loop communication parameters between the IED equipment to be tested and the associated equipment are wrong or not, if the self-checking of the step is passed, reconstructing a virtual machine A and a virtual machine B, entering an interface to be tested again, if the self-checking of the step is not passed, performing virtual machine virtual loop connection logic self-checking, if the self-checking of the step is passed, re-determining a testing boundary, checking the equipment to be tested again, and then continuing entering a group machine and testing interface; if the self-check in the step is not passed, SCD file consistency check is carried out by comparing the SCD configuration file downloaded to the virtual machine with the SCD configuration file in the database, so as to further confirm whether transmission failure is caused by file damage in the downloading process of the SCD configuration file; and if the consistency check in the step passes, automatically associating the reconstruction and extension interval IED equipment with other related IED equipment again, and entering a test boundary determining link again.

By adopting the technical scheme, aiming at the reconstruction, extension, acceptance and debugging engineering of the intelligent substation, the SCD file pre-configured by the newly-added IED equipment is imported into the front-end database of the virtual machine, the system is automatically associated with other related IED equipment and automatically determines the test boundary according to the virtual terminal table in the configuration file, so that a virtual machine model of the newly-added IED equipment and the associated equipment is constructed, and manual testing or automatic testing can be selected to perform virtual circuit mirror image simulation transmission between the IED equipment within the test boundary range.

After the simulation transmission check is finished, a virtual loop transmission check report is issued correctly and automatically in a transmission mode, and a reproducible simulation transmission template is generated, so that the IED equipment with the same interval type can reproduce a transmission scheme at one key to perform simulation transmission test, and the universality of the invention is further improved.

The method has the advantages of simple checking process, less time consumption, saving of manpower and material resource investment brought by repeated debugging work, greatly improved work efficiency of acceptance and debugging work of the intelligent substation, no need of manual intervention in intermediate links, small influence of subjective factors on checking results and high checking accuracy.

The following detailed description will explain the present invention and its advantages.

Drawings

FIG. 1 is a schematic flow chart of the present invention;

FIG. 2 is a schematic view of a virtual circuit mirror drive flow;

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.

IED: intelligent electric power monitoring device

SCD: total station system configuration file in IEC61850 standard of transformer substation

Aiming at the project of acceptance and debugging of reconstruction and extension of the intelligent substation, the invention provides a virtual loop simulation transmission method of intelligent equipment used in reconstruction and extension of the intelligent substation, which comprises the following steps:

step 1: dividing test domains according to the sections of the newly-added IED equipment, respectively summarizing the SCD files of the newly-added IED equipment in each test domain, carrying out graphic modular processing on all SCD information associated with the SCD files, and importing graphic module information into a virtual machine system.

Step 2: the virtual machine system utilizes graphical SCD software to automatically search out other IED devices associated with the IED device to be tested, sets the central IED through the IED list, displays a logical link diagram of the central IED, configures a physical IED and a virtual IED in the association diagram, and automatically imports SV and GOOSE parameter configuration information associated with the physical IED and the virtual IED.

And step 3: and simulating the reconstruction and expansion equipment, the direct association equipment and the indirect association equipment by adopting a mirror image virtual machine, and confirming the correctness of virtual circuit connection among the equipment through simulation transmission.

As shown in fig. 1, after the virtual circuit mirror image simulation transmission method related by the invention is used, the traditional acceptance/maintenance mode is changed greatly, and the virtual circuit mirror image simulation transmission method is a one-key sequential control type virtual circuit mirror image transmission simulation method. For debugging/acceptance personnel, the whole operation flow is changed, an SCD file and a fixed value which are consistent with the scene are selected and imported from an engineering database, a real object IED equipment downloading configuration file is immediately generated, each reconstruction and extension interval configuration file is selected to be downloaded into a virtual machine respectively, if the same type of newly increased intervals exist, a typical interval virtual machine scheme can be adopted to carry out a mode, virtual circuit transmission tests of other interval IED equipment can be automatically implemented through a copy scheme, and the time of the configuration file is saved. And then the virtual machine reads back the configuration file of the physical IED equipment and checks the consistency of the SCD file in the background. After all the checking is finished, the secondary loop debugging of the mirror image virtual machine-real object IED equipment can be carried out, when the link communication logic is correct and the SV and GOOSE parameter configuration is correct, the manual/automatic mode can be selected to carry out the virtual loop mirror image transmission of the IED equipment, and after the manual/automatic mode is finished, a virtual loop inspection report is automatically issued, so that the one-key function debugging is really realized.

As shown in fig. 2, the core method, virtual circuit mirror transmission, related to the present invention describes the working process in detail:

importing a configuration SCD file of the newly-added IED equipment;

for the reconstruction and extension project of the intelligent substation, before debugging and acceptance work begins, interval data packaging is carried out on a preset SCD file of newly-added IED equipment to be added, and the SCD file is led into a new interval database of an intelligent overhaul platform. Meanwhile, the virtual terminal table of the virtual loop of the intelligent substation is also led into the virtual terminal table. And automatically carrying out configuration information preprocessing and pre-inspection in a background in a database, wherein the preprocessing and pre-inspection comprise checking whether the SCD configuration information of the intelligent substation meets a dual configuration standard or not and checking whether the SCD configuration information of the intelligent substation strictly corresponds to a virtual terminal table or not, namely, the imported SCD configuration file is ensured to meet the requirement of the whole construction scheme, and no manual operation property error of the SCD file exists before the virtual machine is constructed and the mirror image transmission.

Automatically associating other related IED devices;

and according to the virtual terminal table of the virtual circuit in the database, the overhaul platform automatically associates other related IED equipment with virtual circuit connection with the IED equipment of the reconstruction and extension interval. And then, automatically generating an IED basic profile list through the overhaul/reconstruction and extension sub CRC check, wherein the IED basic profile list comprises newly added IEDs, virtual circuit changed IEDs and deleted IEDs, and a visual IED equipment association interface comprising reconstruction and extension equipment, direct association equipment and indirect association equipment is formed.

Determining a test boundary;

and carrying out comprehensive boundary determination according to the virtual loop relationship among the reconstruction and extension equipment, the direct association equipment and the indirect association equipment and the change condition of the sub CRC. If the sub CRC between the direct association equipment and the indirect association equipment (the original operation line interval equipment) of the reconstruction and extension equipment is not changed, the indirect association equipment does not need to carry out simulation transmission.

Building a virtual machine of the IED equipment;

and simulating the reconstruction and expansion equipment, the direct association equipment and the indirect association equipment by adopting a mirror image virtual machine according to the boundary range, and confirming the correctness of virtual circuit connection among the equipment through simulation transmission.

The transmission of the reconstruction and extension equipment and the direct association equipment is as follows: virtual machine A virtual reconstruction and expansion equipment and virtual machine B virtual direct correlation equipment, wherein the virtual machine A and the virtual machine B import the reconstructed and expanded SCD file to perform virtual loop simulation transmission.

The direct association device and the indirect association device are driven: virtual direct association equipment of the virtual machine A and virtual indirect association equipment of the virtual machine B are introduced into the virtual machine A and the virtual machine B, and the SCD file after reconstruction and extension is imported to perform virtual loop simulation transmission.

The direct association device and the indirect association device are driven: virtual machine A virtual direct correlation equipment and virtual machine B virtual indirect correlation equipment, wherein the virtual machine A imports the SCD file after reconstruction and expansion, and the virtual machine B imports the SCD file before reconstruction and expansion to perform virtual loop simulation transmission.

Mirror image simulation transmission;

and simulating the reconstruction and expansion equipment, the direct association equipment and the indirect association equipment by adopting a mirror image virtual machine, and confirming the correctness of virtual circuit connection among the equipment through simulation transmission.

And aiming at the virtual machine A and the virtual machine B, manually or automatically simulating transmission test is carried out on each IED through a virtual-to-virtual mode, and the correctness of a virtual loop between the IED to be tested and the associated equipment is verified.

Step 3.1, testing the simulated transmission of the reconstruction and extension equipment and the directly associated equipment: virtual machine A virtual reconstruction and expansion equipment and virtual machine B virtual direct correlation equipment, wherein the virtual machine A and the virtual machine B import the reconstructed and expanded SCD file to perform virtual loop simulation transmission.

Step 3.2, testing the simulated transmission of the direct correlation equipment and the indirect correlation equipment (method one): virtual direct association equipment of the virtual machine A and virtual indirect association equipment of the virtual machine B are introduced into the virtual machine A and the virtual machine B, and the SCD file after reconstruction and extension is imported to perform virtual loop simulation transmission.

Step 3.3, testing the simulated transmission of the direct correlation equipment and the indirect correlation equipment (method II): virtual machine A virtual direct correlation equipment and virtual machine B virtual indirect correlation equipment, wherein the virtual machine A imports the SCD file after reconstruction and expansion, and the virtual machine B imports the SCD file before reconstruction and expansion to perform virtual loop simulation transmission.

After the transmission is correct, a virtual loop transmission inspection correct report is automatically issued, which shows that the virtual loop connection of the newly-added IED equipment and the associated equipment in the interval is correct, and the test scheme can be copied in the same type of interval of the station, so that the 'one-click test' can be conveniently carried out subsequently.

By simulating the transmission, the following problems can be found:

firstly, testing whether the virtual connection relation between the devices is correct or not, and whether the problems of multiple connections, misconnection, missing connections and the like exist or not;

secondly, whether the communication parameters between the devices are correct is tested, and the parameters comprise a device data set, the number of channels, the types of the received and transmitted messages, APPID and the like.

If the transmission fails, the intermediate link is indicated to be in error, and the background can automatically enter a logic self-checking program of the virtual mechanism frame;

firstly, comprehensively checking whether the virtual loop communication parameters between the IED equipment to be tested and the associated equipment are wrong or not, if the self-checking of the step is passed, reconstructing a virtual machine A and a virtual machine B, and entering an interface to be tested again. If the self-check in the step is not enough, the virtual machine virtual loop connection logic self-check is carried out, if the self-check in the step passes, the test boundary is determined again, and after the equipment to be tested is checked again, the machine assembling and the test interface are continuously entered. If the self-check in the step is not passed, SCD file consistency check is carried out by comparing the SCD configuration file downloaded to the virtual machine with the SCD configuration file in the database, so as to further confirm whether transmission failure is caused by file damage in the downloading process of the SCD configuration file. And if the consistency check in the step passes, automatically associating the reconstruction and extension interval IED equipment with other related IED equipment again, and entering a test boundary determining link again. If the consistency check is not passed, manually checking whether the SCD configuration file in the database is the SCD file used by the reconstruction and extension project.

Analysis shows that compared with the prior art, the virtual circuit mirror image transmission method has the advantages and beneficial effects that a large amount of traditional mechanical transmission verification work in the acceptance work of reconstruction and extension projects is replaced by virtual machine simulation transmission, the acceptance efficiency of the intelligent substation is greatly improved, the working time of debugging and acceptance work is greatly shortened, and a plurality of repetitive and mechanical transmission processes are reduced. Meanwhile, the expanded one-key testing function can duplicate and implement the transmission testing scheme of the IED equipment of the same type, so that for large reconstruction and extension projects, the function improves the working efficiency, further ensures that all IED equipment should be tested to the greatest extent, and avoids the defects of incomplete testing function and improper testing equipment caused by manual negligence. In addition, a transmission test report is automatically issued after each mirror image transmission test is finished, so that the intelligent substation equipment is provided with a readable physical examination record, the work safety responsibility of staff for debugging and acceptance work is also implemented, and the quality of the acceptance work is improved.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in other forms without departing from the spirit or essential characteristics thereof. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.