CN112287648A - SCD-based substation monitoring system data point table generation and synchronization method - Google Patents
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Abstract
The invention discloses a substation monitoring system data point table generating and synchronizing method based on SCD. Belonging to the field of power system automation; the method comprises the following specific steps: 1. generating a total station SCD file; 2. obtaining relation information, mapping the relation information to a monitoring system relation database, creating a real-time database by the monitoring system according to the relation database, and generating a monitoring system data point table by the real-time database; 3. the system configuration tool updates the real-time database of the monitoring system according to the changed content and automatically and synchronously updates the content related to the same change in the SCD file; 4. and finally, performing CRC (cyclic redundancy check) on the CID file exported by the SCD (service description device) to ensure version consistency. The invention realizes data homology, one-place change and global synchronization, completes the analysis of SCD, the generation of a monitoring point table, the synchronization of SCD files and the consistency check of CID files in an automatic mode, improves the reliability of version control of the SCD files and effectively improves the project debugging efficiency of the transformer substation.
Description
Technical Field
The invention belongs to the field of automation of power systems, particularly relates to the field of automatic monitoring systems of transformer substations, and particularly relates to a method for generating and synchronizing data point tables of a transformer substation monitoring system based on SCD.
Background
With the continuous development of the substation automation technology, the intelligent substation widely adopts the scd (substation Configuration description) model based on IEC61850 to describe the system Configuration of the total substation. The IEC61850 standard defines a set of object-oriented service description system, and describes object languages and modeling of data, equipment, data structures and the like of the substation hierarchical mechanism. Due to the fact that the difference between the storage formats of the substation monitoring system database and the IEC 61850-based SCD model file and the construction of the data model is large, the two data formats are difficult to directly map in the conversion process. The monitoring system data point table is the basis for the application of the substation automation technology. The monitoring system database needs to convert the four-remote signals into a format conforming to 61850 communication according to the four-remote storage point table and then communicates with the secondary equipment, so that the conversion efficiency is low; the monitoring point table is manually created, so that the workload is large, errors are easy to occur, and the requirement on the debugging level of engineering personnel is high; because the monitoring point table and the SCD have no direct mapping relationship, when the monitoring point table changes, the SCD and the device CID cannot be synchronously updated in time, and hidden danger is brought to the management of the data source version. Therefore, the method which is automatic, safe and convenient is adopted to realize the model mapping of the SCD and the database of the monitoring system, the generation of the monitoring point table and the synchronization of the SCD file, and has important significance for the field engineering debugging work of the transformer substation.
Disclosure of Invention
Aiming at the problems, the invention provides a substation monitoring system data point table generation and synchronization method based on SCD; according to the method, the SCD is used as a source according to the principles of data homology, one-place change and global synchronization, the analysis of the SCD, the generation of a monitoring point table and the synchronous verification of the SCD file are automatically completed, and the project debugging efficiency of the transformer substation is improved.
The technical scheme of the invention is as follows: a substation monitoring system data point table generating and synchronizing method based on SCD comprises the following specific operation steps:
step (1.1), generating a total-station SCD file according to the ICD and the SSD file;
step (1.2), analyzing the SCD file in the whole station through an SCL configuration language to obtain relationship information which is mapped to a relationship database of the monitoring system; the monitoring system establishes a real-time database according to a relational database thereof, and generates a monitoring system data point table from the real-time database;
step (1.3), when the data point table of the monitoring system changes, the system configuration tool updates the real-time database of the monitoring system according to the changed content, and automatically and synchronously updates the content related to the same change in the SCD file of the whole station;
and (1.4) finally, performing CRC on the CID file exported by the SCD file of the total station to ensure the consistency of versions.
Further, in step (1.1), generating the total station SCD file according to the ICD and SSD files specifically includes: and carrying out example configuration on all devices in the total station according to the ICD file and the SSD file of the system specification description, and generating a SCD configuration file in the total station.
Further, in the step (1.2), the configuration of the equipment in the substation is analyzed through the substation configuration language SCL, and the equipment is divided and associated according to four parts, namely a communication type, a primary equipment type, an intelligent electronic equipment type and a data type template type;
analyzing the communication class, dividing according to the communication subnet and the access point, and obtaining the communication parameters between different devices;
(1.2.2) analyzing the primary equipment types, dividing the equipment according to the voltage grade and the interval, and acquiring data information of all primary equipment of the transformer substation;
(1.2.3) analyzing the intelligent electronic equipment, and acquiring information such as functional logic node types, data set types, communication control block types and the like related to a communication interface in the secondary equipment;
(1.2.4) analyzing the data type template class to obtain the mode and the basic attribute of all the data units in the SCD model.
Further, in the step (1.3), when the monitoring system data point table changes, the system configuration tool updates the real-time database of the monitoring system according to the changed content, and automatically and synchronously updates the content related to the same change in the total station SCD file:
according to the information format of the real-time database of the monitoring system, object-oriented configuration information in the SCD file of the total station is analyzed, information of remote signaling, remote measurement, remote control, protection events and protection alarm events is generated, the information is mapped into a relational database of the monitoring system of the transformer substation, the real-time database of the monitoring system is created, remote signaling and remote measurement points required by automatic application are screened, and a data point table of the monitoring system is generated.
Further, in step (1.4), the specific operation step of performing CRC check on the CID file derived by the total station SCD to ensure version consistency is: performing CRC on a CID file exported by the SCD of the total station; respectively calculating CRC check code values for a Communication part, an IED part and a DataTypetemplates part in the CID file, wherein the result is represented as 8-bit upper-case hexadecimal, and the upper bits less than 8 bits are supplemented with 0; and finally, connecting the 3 character strings of the CRC check code values into character strings according to the order of Communication, IED and DataTypetemplates to calculate the CRC check code.
The invention has the beneficial effects that: the invention realizes data homology, one-place change and global synchronization, completes the analysis of SCD, the generation of a monitoring point table, the synchronization of SCD files and the consistency check of CID files in an automatic mode, improves the reliability of version control of the SCD files and effectively improves the project debugging efficiency of the transformer substation.
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FIG. 1 is a schematic diagram of substation monitoring data point table generation and SCD synchronization according to the present invention;
fig. 2 is a schematic diagram of an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings:
as shown in the figure; a substation monitoring system data point table generating and synchronizing method based on SCD comprises the following specific operation steps:
step (1.1), generating a total-station SCD file according to the ICD and the SSD file;
step (1.2), analyzing the SCD file in the whole station through an SCL configuration language to obtain relationship information which is mapped to a relationship database of the monitoring system; the monitoring system establishes a real-time database according to a relational database thereof, and generates a monitoring system data point table from the real-time database;
step (1.3), when the data point table of the monitoring system changes, the system configuration tool updates the real-time database of the monitoring system according to the changed content, and automatically and synchronously updates the content related to the same change in the SCD file of the whole station;
and (1.4) finally, performing CRC on the CID file exported by the SCD file of the total station to ensure the consistency of versions.
Further, in step (1.1), generating the total station SCD file according to the ICD and ssd (system Specification description) files specifically includes: according to the device configuration description ICD (IED Capability description) file and the SSD file, instance configuration of all devices in the total station is carried out, and a total station SCD configuration file is generated.
Further, in the step (1.2), the configuration of the equipment in the substation is analyzed through a substation configuration language SCL, and the equipment is divided and associated according to four parts, namely a communication class, a primary equipment class, an intelligent electronic equipment class (IED) and a data type template class;
analyzing the communication class, dividing according to the communication subnet and the access point, and obtaining the communication parameters between different devices;
(1.2.2) analyzing the primary equipment types, dividing the equipment according to the voltage grade and the interval, and acquiring data information of all primary equipment of the transformer substation;
(1.2.3) analyzing the intelligent electronic equipment, and acquiring information such as functional logic node types, data set types, communication control block types and the like related to a communication interface in the secondary equipment;
(1.2.4) analyzing the data type template class to obtain the mode and the basic attribute of all the data units in the SCD model.
Further, in the step (1.3), when the monitoring system data point table changes, the system configuration tool updates the real-time database of the monitoring system according to the changed content, and automatically and synchronously updates the content related to the same change in the total station SCD file:
analyzing object-oriented configuration information in the SCD file of the total station according to an information format of a real-time database of the monitoring system, generating point-oriented information such as remote signaling, remote measurement, remote control, protection events, protection alarm events and the like, creating a real-time database of the monitoring system by mapping the information into a relational database of the monitoring system of the transformer substation, screening remote signaling and remote measuring points required by automatic application, and generating a data point table of the monitoring system;
when the data point table of the monitoring system changes, the system configuration tool updates the real-time database of the monitoring system according to the modification content and automatically and synchronously updates the same description related in the SCD file. The content in the SCD file that needs to be updated includes the version number and the history modification record of the SCD file, in addition to the desc attribute of the IED concerned. All IED's instance profiles CID derived based on the updated SCD file will contain updated version numbers and historical modification records.
Further, in step (1.4), a CRC check is performed on the SCD-derived CID file, the CRC check code of the CID file being related only to the model information of the IED itself, regardless of the version number, revision history, etc. common to all IEDs. CRC check code values are respectively calculated for a Communication part, an IED part and a DataTypetemplates part in the CID file, and the result is represented as 8-bit upper-case hexadecimal and less than 8-bit upper-bit 0 complement. And finally, connecting the 3 character strings of the CRC check code values into character strings according to the order of Communication, IED and DataTypetemplates to calculate the CRC check code. Therefore, for the unchanged IED, the CID file does not need to be downloaded again, and the version control of the files can still be kept.
The specific embodiment is as follows: taking the generation and synchronization of a certain substation monitoring system point table as an example, the process is as follows: firstly, generating a file named 'test station, scd' of a total station by an integrated configuration tool according to an ICD file and an SSD file;
analyzing the SCD file through a substation configuration language SCL, analyzing a Communication description part to obtain a device name and a device IP; analyzing a primary equipment class (substtation) description part to obtain primary equipment information such as voltage grade, interval, switch knife switch and the like; analyzing an electronic device (IED) description part to obtain secondary device information such as a logic node LN and data basic attributes; and analyzing a data type template class (DataTypeTemplate) part to obtain basic attributes of all data units under the LN.
And mapping according to the fields of a 61850 data attribute path, a related data attribute path, an attribute type and an attribute length and a primary equipment class table, a measurement class table, a logic node information class table and a protection information class table in a monitoring system relational database.
The monitoring system creates a real-time database according to the tables, and generates a monitoring system data point table according to structures of the plant station, the voltage class, the interval, the IED, the remote signaling point, the remote measuring point and the remote control point for automatic application.
Taking the example that the description of a certain interval in the monitoring information point table is changed from "test circuit 101" to "test circuit 201", when the description of the interval of "test circuit 101" in the monitoring information point table is modified to "test circuit 201" by the system configuration tool, the configuration tool will traverse all table fields in the real-time library, replace all fields related to "test circuit 101" with "test circuit 201", and generate an automatic processing configuration file "autoprocessconfig.xml", which stores the modified content in the form of UTF8 code.
And when the integrated configuration tool detects that the automatic processing configuration file exists, starting an automatic synchronous processing flow:
(1) checking whether an automatic processing configuration file exists or not after the tool is started, if not, entering the next detection period, and if so, entering a synchronous automatic processing mode;
(2) reading the automatic processing configuration file by the tool, obtaining the related content of the interval name to be modified, then automatically deleting the automatic processing configuration file, and reading the original SCD file;
(3) the IED to be related when the SCD model is updated is the IED with the interval original description in the desc attribute, therefore, whether the matched IED can be found or not is checked according to the interval name needing to be modified before updating, and if the IED does not exist, the IED is a parameter error, so that the processing failure is caused;
(4) and when the interval name check is passed, updating and storing the SCD model data:
(4.1) replacing the old interval description in the desc attribute of the IED with the new interval description;
(4.2), the revision of the SCD is incremented by 0.1;
(4.3) adding a record in the revision history of the SCD, wherein the version number version is kept unchanged, the revision version number revision is a new revision version number which is incremented by 0.1, the revision time when is the current time of the system, the reviser who is the name of a configuration tool, and the revision content what is the revision condition of the interval name;
(5) the original SCD file is backed up before the modified SCD file is exported, if an error occurs in the process of exporting the file, the exported file is deleted, and the file backed up before is restored;
(6) reading CID file content, calculating CRC code of Communication part content from Communication to Communication as '44C 9E 910', and representing result as 8-bit upper-case hexadecimal;
(7) calculating CRC code 'F9356806' of IED part contents from < IED > to </IED >, and representing the result as 8-bit upper-case hexadecimal;
(8) calculating CRC codes 'C87 DEEB 9' of IED partial contents from < DataTypetemplates > to </IED >, and expressing the result as 8-bit upper-case hexadecimal;
(9) the CRC codes of Communication, IED and DataTypetemplates are connected in series to form a character string '44C 9E910F9356806C87DEEB 9', the CRC code of the character is calculated to be '14 CC 2582', and the result is expressed as 8-bit upper-case hexadecimal;
(10) performing automatic CRC with the original CID file, and prompting that the CID versions of the devices are inconsistent if the CRC fails, and downloading a new CID file again;
(11) and finally, generating an automatic processing result file, and finishing the whole process.
Finally, it should be understood that the embodiments described herein are merely illustrative of the principles of embodiments of the present invention; other variations are possible within the scope of the invention; thus, by way of example, and not limitation, alternative configurations of embodiments of the invention may be considered consistent with the teachings of the present invention; accordingly, the embodiments of the invention are not limited to the embodiments explicitly described and depicted.
Claims (5)
1. A substation monitoring system data point table generation and synchronization method based on SCD is characterized in that: the specific operation steps are as follows:
step (1.1), generating a total-station SCD file according to the ICD and the SSD file;
step (1.2), analyzing the SCD file in the whole station through an SCL configuration language to obtain relationship information which is mapped to a relationship database of the monitoring system; the monitoring system establishes a real-time database according to a relational database thereof, and generates a monitoring system data point table from the real-time database;
step (1.3), when the data point table of the monitoring system changes, the system configuration tool updates the real-time database of the monitoring system according to the changed content, and automatically and synchronously updates the content related to the same change in the SCD file of the whole station;
and (1.4) finally, performing CRC on the CID file exported by the SCD file of the total station to ensure the consistency of versions.
2. The SCD-based substation monitoring system data point table generation and synchronization method according to claim 1, characterized in that: in the step (1.1), generating the total station SCD file according to the ICD file and the SSD file specifically includes: and carrying out example configuration on all devices in the total station according to the ICD file and the SSD file of the system specification description, and generating a SCD configuration file in the total station.
3. The SCD-based substation monitoring system data point table generation and synchronization method according to claim 1, characterized in that: in the step (1.2), the configuration of the equipment in the substation is analyzed through the substation configuration language SCL, and the equipment is divided and associated according to four parts, namely a communication type, a primary equipment type, an intelligent electronic equipment type and a data type template type;
analyzing the communication class, dividing according to the communication subnet and the access point, and obtaining the communication parameters between different devices;
(1.2.2) analyzing the primary equipment types, dividing the equipment according to the voltage grade and the interval, and acquiring data information of all primary equipment of the transformer substation;
(1.2.3) analyzing the intelligent electronic equipment, and acquiring information such as functional logic node types, data set types, communication control block types and the like related to a communication interface in the secondary equipment;
(1.2.4) analyzing the data type template class to obtain the mode and the basic attribute of all the data units in the SCD model.
4. The SCD-based substation monitoring system data point table generation and synchronization method according to claim 1, characterized in that: in the step (1.3), when the monitoring system data point table changes, the system configuration tool updates the real-time database of the monitoring system according to the changed content, and automatically and synchronously updates the content related to the same change in the total station SCD file, which specifically includes the steps of:
according to the information format of the real-time database of the monitoring system, object-oriented configuration information in the SCD file of the total station is analyzed, information of remote signaling, remote measurement, remote control, protection events and protection alarm events is generated, the information is mapped into a relational database of the monitoring system of the transformer substation, the real-time database of the monitoring system is created, remote signaling and remote measurement points required by automatic application are screened, and a data point table of the monitoring system is generated.
5. The SCD-based substation monitoring system data point table generation and synchronization method according to claim 1, characterized in that: in step (1.4), the specific operation steps of performing CRC check on the CID file derived from the total station SCD to ensure version consistency include: performing CRC on a CID file exported by the SCD of the total station; respectively calculating CRC check code values for a Communication part, an IED part and a DataTypetemplates part in the CID file, wherein the result is represented as 8-bit upper-case hexadecimal, and the upper bits less than 8 bits are supplemented with 0; and finally, connecting the 3 character strings of the CRC check code values into character strings according to the order of Communication, IED and DataTypetemplates to calculate the CRC check code.
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| CN113553728A (en) * | 2021-09-18 | 2021-10-26 | 中国电力科学研究院有限公司 | Method and system for generating intelligent substation station control layer application system model |
| CN114095492A (en) * | 2021-11-16 | 2022-02-25 | 许昌许继软件技术有限公司 | Data transmission method and system for main and sub-stations of power system and electronic equipment |
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| CN114650284A (en) * | 2022-03-08 | 2022-06-21 | 国网江苏省电力有限公司电力科学研究院 | File and directory automatic synchronization method and device based on set protocol |
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