CN110618894A - Method for detecting SCD configuration file homology of intelligent substation - Google Patents
Method for detecting SCD configuration file homology of intelligent substation Download PDFInfo
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- CN110618894A CN110618894A CN201910903489.6A CN201910903489A CN110618894A CN 110618894 A CN110618894 A CN 110618894A CN 201910903489 A CN201910903489 A CN 201910903489A CN 110618894 A CN110618894 A CN 110618894A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 4
- 238000004364 calculation method Methods 0.000 claims abstract description 3
- 238000007726 management method Methods 0.000 description 19
- 238000012423 maintenance Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
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- 238000013459 approach Methods 0.000 description 1
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- 238000013070 change management Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/80—Information retrieval; Database structures therefor; File system structures therefor of semi-structured data, e.g. markup language structured data such as SGML, XML or HTML
- G06F16/81—Indexing, e.g. XML tags; Data structures therefor; Storage structures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
Abstract
The invention discloses a method for detecting the homology of an SCD configuration file of an intelligent substation, which comprises the following steps: step 1, carrying out 32-bit check code calculation on SCD full text information by using a cyclic redundancy check code (CRC) when an SCD file is signed in for the first time to generate a unique code; step 2, when the SCD is signed out, the unique code is signed out together with the SCD file; the upgrade version is modified on the basis; step 3, when the SCD is signed in, firstly, unique code comparison is carried out, if the unique codes are not consistent, the signed-in version is not upgraded on the signed-out version, signing in is refused, if the unique codes are consistent, signing in is allowed, version replacement is carried out, and the unique codes are updated; the problem of the homology of signing out and signing in SCD files in the SCD management and control system of the intelligent substation is solved.
Description
Technical Field
The invention belongs to the technical field of intelligent substation configuration information, and particularly relates to a method for detecting the homology of an SCD (substation configuration description) configuration file of an intelligent substation.
Background
With the advance of new energy strategy and the deepening of intelligent power grid construction in China, the intelligent substation technology based on IEC61850 standard (the only global universal standard in the field of power system automation) is unprecedented in China, the intelligent power grid enters a comprehensive construction stage, a capital construction substation is constructed according to the intelligent substation standard, and part of traditional substations are upgraded according to the intelligent substation standard. The technical development characteristics of the intelligent substation determine that the operation and maintenance process of the intelligent substation depends on an SCD (substation configuration information) configuration file. The SCD file is a system configuration file of the total station, a unique data source of the total station, which describes instance configurations and communication parameters of all IEDs (intelligent electronic devices), communication configurations between the IEDs, and a primary system structure of the substation. In the work of capital construction debugging or later-stage in-station overhaul, technical improvement and the like, any change of secondary equipment can affect a configuration file of a whole station and further possibly affect other normally-operated relay protection devices, but the operation and maintenance process of the current intelligent substation has the following outstanding problems:
(1) after a large number of intelligent stations are put into operation, the configuration files are stored in a personal mode, an integration merchant manages and the like, and the specification, the correctness and the uniqueness of the configuration files of the intelligent substation cannot be guaranteed;
(2) after the intelligent substation is put into operation, a large number of engineering projects such as technical improvement, overhaul and overhaul exist, the engineering projects depend on and possibly modify configuration files of the intelligent substation, and the flow control of the configuration files of the engineering projects is lacked, and the flow control includes the flow control of configuration file flow, defect treatment, defect evaluation and the like among departments such as a construction unit, an electric academy, an operation and maintenance unit, a regulation and control department and the like;
(3) after the intelligent substation is put into operation, operation and maintenance work must depend on the configuration files, and means for managing and controlling the configuration files based on the operation and maintenance process is lacked, so that the versions of the configuration files after the operation are consistent, uniform and standard.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for detecting the homology of the SCD configuration files of the intelligent substation is used for solving the homology problem of signing out and signing in the SCD files in an SCD management and control system of the intelligent substation, the SCD files newly signed in the SCD management and control system are ensured to be modified on the basis of the SCD files of the old version, the uniqueness of the SCD files of a single project is ensured, the problem that the SCD files of other versions are wrongly signed in when the SCD files are signed in is prevented, and hidden dangers brought to later-stage operation and maintenance of the intelligent substation due to the factors are effectively avoided.
The technical scheme of the invention is as follows:
a method for detecting the homology of an SCD configuration file of an intelligent substation comprises the following steps:
step 1, carrying out 32-bit check code calculation on SCD full text information by using a cyclic redundancy check code (CRC) when an SCD file is signed in for the first time to generate a unique code;
step 2, when the SCD is signed out, the unique code is signed out together with the SCD file; the upgrade version is modified on the basis;
and 3, when the SCD is signed in, firstly, comparing the unique codes, if the unique codes are not consistent, indicating that the signed-in version is not the upgrade on the signed-out version, refusing to sign in, and if the unique codes are consistent, allowing to sign in, replacing the version and updating the unique codes.
The invention has the beneficial effects that:
according to the invention, the SCD file newly signed into the SCD control system is modified on the basis of the SCD file of the old version, so that the uniqueness of the SCD file of a single project is ensured, the problem that SCDs of other versions are wrongly signed in when the SCD is signed in is prevented, and the hidden danger caused by the factors on the later-stage operation and maintenance of the intelligent substation is effectively avoided; the problem of the homology of signing out and signing in SCD files in the SCD management and control system of the intelligent substation is solved.
Detailed Description
The present invention will be described in further detail with reference to examples. The SCD adopts the XML to describe the structure and the configuration of the intelligent substation, including the primary and secondary equipment capability description information of the intelligent substation and the communication configuration and signal association thereof, and is an important data source for the operation of the intelligent substation.
Due to the reasons of transformation or extension and the like, the intelligent substation needs to re-configure the SCD file on the basis of the original SCD file, and the operation and maintenance manager of the intelligent substation ensures that the SCD file is signed in the same source from the SCD management and control system until the SCD file is signed in again through the method for detecting the homology of the SCD file of the intelligent substation.
The intelligent substation operation and maintenance later stage can carry out reconstruction, extension, defect elimination, countermeasures and the like, needs to be carried out on the basis of the operating version SCD file in the intelligent substation configuration file management and control system, sign-out locking is adopted in the configuration file management and control system, a sign-in sign-out mechanism for sign-in unlocking guarantees uniqueness of SCD file modification, and a unique code is adopted as a version management controller to guarantee data uniqueness of the SCD file. The sign-in and sign-out mechanism is a file change management method, which is used for preventing conflict caused when multiple persons modify the SCD file at the same time, and the version management method using the unique code can ensure the continuity of version management of the SCD file and prevent cross-version modification and version management disorder.
In practical application, whenever work or engineering which causes SCD change is carried out, sign-out is carried out in an intelligent substation configuration file management and control system before the change, the configuration file management and control system automatically locks the signed-out SCD version, and does not allow sign-out and editing operation of relevant attributes to be carried out until the SCD change is completed, sign-in is carried out in the configuration file management and control system by a person who signs-out the SCD file, the locked substation is unlocked while sign-in is carried out, a SCD file new version is formed, and flow auditing and filing are carried out to ensure the uniqueness of the SCD file.
In an early SCD management and control system, the internal version number and revision version number of an SCD are often used for management, and when the increase and decrease of equipment occur in an SCD file, the version number is increased progressively; when the device is unchanged, only the configuration is changed, the revision version number is incremented. This management approach is overly dependent on human involvement and the possibility of the version number and revision number being tampered with by human beings is high. Therefore, a unique code manner is considered as a version management means, and the management steps of the unique code are as follows:
(1) when the SCD file is signed in for the first time, Cyclic Redundancy Check (CRC) is utilized to calculate 32-bit Check codes of SCD full-text information;
(2) when the SCD is signed out, the unique code is signed out together with the SCD file, and the upgrade version is modified on the basis;
(3) when the SCD is signed in, firstly, unique code comparison is carried out, if the unique codes are not consistent, the signed-in version is not upgraded on the signed-out version, signing in is refused, if the unique codes are consistent, signing in is allowed, the version is replaced, and the unique codes are updated;
in this way, the check-in of the wrong SCD file or the check-in of the SCD file modified on the wrong version can be avoided, and the data homology of the SCD file checked in the system and the original SCD file is ensured.
According to the method for detecting the SCD configuration file homology of the intelligent substation, the method is constructed through the steps, the homology of the SCD from the sign-out of the SCD management and control system to the sign-in of the SCD is realized, the correctness and the uniqueness of the SCD file in the sign-in process are ensured, and a solid foundation is laid for the long-term stable operation of the intelligent substation.
Claims (1)
1. A method for detecting the homology of an SCD configuration file of an intelligent substation comprises the following steps:
step 1, carrying out 32-bit check code calculation on SCD full text information by using a cyclic redundancy check code (CRC) when an SCD file is signed in for the first time to generate a unique code;
step 2, when the SCD is signed out, the unique code is signed out together with the SCD file; the upgrade version is modified on the basis;
and 3, when the SCD is signed in, firstly, comparing the unique codes, if the unique codes are not consistent, indicating that the signed-in version is not the upgrade on the signed-out version, refusing to sign in, and if the unique codes are consistent, allowing to sign in, replacing the version and updating the unique codes.
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| CN201910903489.6A CN110618894A (en) | 2019-09-24 | 2019-09-24 | Method for detecting SCD configuration file homology of intelligent substation |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903188A (en) * | 2014-03-18 | 2014-07-02 | 国家电网公司 | Controlling method of configuration file of intelligent transformer substation system |
| CN105227350A (en) * | 2015-08-31 | 2016-01-06 | 河北省电力建设调整试验所 | Based on the intelligent substation IED configuration file management-control method of CRC check code |
| CN105930170A (en) * | 2016-05-12 | 2016-09-07 | 国网辽宁省电力有限公司鞍山供电公司 | SCD file semantic version management method based on comparison analysis results |
| CN109460679A (en) * | 2018-01-29 | 2019-03-12 | 国网浙江省电力公司湖州供电公司 | A kind of intelligent substation configuration file uniqueness method of calibration based on Encryption Algorithm |
| CN109992571A (en) * | 2019-03-26 | 2019-07-09 | 国网河南省电力公司电力科学研究院 | A kind of intelligent substation configuration file line closed loop check system and method for calibration |
-
2019
- 2019-09-24 CN CN201910903489.6A patent/CN110618894A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903188A (en) * | 2014-03-18 | 2014-07-02 | 国家电网公司 | Controlling method of configuration file of intelligent transformer substation system |
| CN105227350A (en) * | 2015-08-31 | 2016-01-06 | 河北省电力建设调整试验所 | Based on the intelligent substation IED configuration file management-control method of CRC check code |
| CN105930170A (en) * | 2016-05-12 | 2016-09-07 | 国网辽宁省电力有限公司鞍山供电公司 | SCD file semantic version management method based on comparison analysis results |
| CN109460679A (en) * | 2018-01-29 | 2019-03-12 | 国网浙江省电力公司湖州供电公司 | A kind of intelligent substation configuration file uniqueness method of calibration based on Encryption Algorithm |
| CN109992571A (en) * | 2019-03-26 | 2019-07-09 | 国网河南省电力公司电力科学研究院 | A kind of intelligent substation configuration file line closed loop check system and method for calibration |
Non-Patent Citations (1)
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| 温子祺 等: "ARM Cortex-M4微控制器原理与实践", vol. 1, 北京航空航天大学出版社, pages: 305 - 309 * |
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