CN109450084B - Intelligent substation multilayer protocol collaborative analysis method based on information data link - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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Abstract
The invention discloses an intelligent substation multilayer protocol collaborative analysis method based on an information data chain, which comprises the steps of detecting MMS messages of a station control layer in real time, judging whether remote switch operation occurs or not, detecting GOOSE messages of a process layer network after the remote switch operation occurs, judging whether remote control exit occurs or not, detecting the remote control exit of a measurement and control device, detecting the MMS messages of the station control layer, and judging whether switch deflection information occurs or not. Compared with the prior art, the intelligent substation multilayer protocol collaborative analysis method based on the information data link realizes the whole process monitoring and comprehensive analysis from the station control layer to the process layer, improves the positioning efficiency and accuracy of network faults, can effectively detect the correctness of a switching loop of the substation, provides an auxiliary decision for the health evaluation of a substation relay protection device, and has good application prospect.
Description
Technical Field
The invention relates to the technical field of operation and maintenance of power systems, in particular to an intelligent substation multilayer protocol collaborative analysis method based on an information data link.
Background
The traditional operation and maintenance mode needs to arrange personnel for inspection at the station every day, and meanwhile, the personnel also need to carry out regular inspection on the secondary equipment and the related secondary loop thereof. With the enlargement of the scale of the power grid, more manpower and capital are needed for the inspection and maintenance mode, the traditional operation and maintenance mode, even the special maintenance mode and other operation and maintenance modes are difficult to continue, and the hidden danger of the equipment cannot be found in time.
At present, an online operation and maintenance management and control system is applied to some test stations, and mainly applied to aspects of relay protection online state detection, online detection of a relay protection secondary circuit, auxiliary maintenance operation and the like. In the online detection of the relay protection secondary circuit, the quality of an optical fiber circuit is detected through light intensity and broken link information, the detection of a cable circuit from an intelligent terminal to a switch cannot be realized, and MMS message information of a station control layer is not judged.
An article, "research and implementation of key technology of intelligent substation relay protection online operation and maintenance system", in 2016, 7 months of an automatic magazine of an electric power system indicates that online detection of a relay protection secondary circuit comprises physical link detection and logical link detection, wherein the physical link detection adopts logical nodes of LCCH and LPST to obtain communication states of an intelligent device and a physical link of a switch, but can only realize physical link state identification of an optical fiber circuit; the logical link detection adopts an online message checking mode, such as errors of message format, message counting, message chain breakage, inconsistent message and configuration and the like, but Data (Data) fields in the messages are not checked, namely abnormal tripping or abnormal switch deflection cannot be detected.
Disclosure of Invention
The invention aims to provide an intelligent substation multilayer protocol collaborative analysis method based on an information data chain, which realizes the whole process monitoring and comprehensive analysis from a station control layer to a process layer, improves the positioning efficiency and accuracy of network faults, can effectively detect the correctness of a switch loop of a substation, and provides an auxiliary decision for the health evaluation of a substation relay protection device.
In order to achieve the purpose, the invention adopts the technical scheme that:
an intelligent substation multilayer protocol collaborative analysis method based on an information data link comprises the following steps:
step (A), detecting an MMS message of a station control layer in real time, judging whether remote control operation of a measurement and control device occurs, and if the remote control operation does not occur, jumping to the step (E) to enter next verification; if the remote control operation occurs, recording the information of the measurement and control device corresponding to the remote control, and executing the step (B);
step (B), detecting the GOOSE message of the process layer in real time, judging whether the GOOSE message of the remote control outlet of the measurement and control device exists or not, if not, reporting that the measurement and control device is abnormal, and skipping to the step (E) to enter the next verification; if yes, entering a waiting moment, waiting for the opening operation of the switch, and entering the step (C);
step (C), detecting the GOOSE message of the process layer in real time, judging whether the GOOSE message with the position displacement of the intelligent terminal of the switch exists or not, if not, reporting that an outlet loop of the intelligent terminal is abnormal, and skipping to the step (E) to enter the next verification; if so, performing step (D);
step (D), detecting the MMS message of the station control layer in real time, judging whether the MMS message with the position displacement measured and controlled by the switch exists or not, if not, reporting that the remote measurement of the measuring and controlling device is abnormal, and executing the step (E) to enter the next verification; if the intelligent terminal is normal, reporting that the monitoring and control loop and the intelligent terminal outlet loop are normal, and then executing the step (E) to enter next verification;
and (E), ending the verification process and entering next verification.
In the foregoing method for cooperatively analyzing a multilayer protocol of an intelligent substation based on an information data link, the method for determining whether a remote control operation of a measurement and control device occurs in step (a) is as follows: searching MMS messages of a station control layer, and detecting whether the following four messages exist: remotely selecting a SelVal message, remotely selecting a service Response SelVal Response message, remotely executing an operator message, and remotely executing a service Response operator Response message; if all the remote control operation devices exist, the remote control operation of the measurement and control device is considered to occur.
In the foregoing method for cooperatively analyzing multilayer protocols of an intelligent substation based on an information data link, the method for recording information of a measurement and control device corresponding to a remote control in step (a) is as follows: recording a DomainName field in the remote control selection SelVal message, and according to the MAC address and the switch deflection information position of the GOOSE message of the measurement and control device corresponding to the preferred DomainName field in the SCD file of the station, also selecting the APPID and the switch deflection information position of the GOOSE message of the measurement and control device corresponding to the DomainName field.
In the foregoing method for cooperatively analyzing a multilayer protocol of an intelligent substation based on an information data link, the method for determining whether a GOOSE message is stored at a remote control outlet of the measurement and control device in step (B) includes: and (3) detecting the GOOSE message of the process layer, screening the GOOSE message containing the MAC address recorded in the step (A), and detecting whether the displacement information of the remote control outlet occurs or not.
In the information data chain-based intelligent substation multilayer protocol collaborative analysis method, the waiting time in the step (B) is set to avoid the longest action time of the switch, and generally set to be 100-200 ms.
The invention has the beneficial effects that: by adopting the information data link-based intelligent substation multilayer protocol collaborative analysis method, the whole process monitoring and comprehensive analysis from a station control layer to a process layer are realized, the positioning efficiency and accuracy of network faults are improved, the correctness of a switch loop of a substation can be effectively detected, and an auxiliary decision is provided for the health evaluation of a substation relay protection device.
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Fig. 1 is a flowchart of an intelligent substation multi-layer protocol collaborative analysis method based on an information data link according to the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a flowchart illustrating an intelligent substation multi-layer protocol collaborative analysis method based on an information data link according to the present invention. As shown in the figure, the intelligent substation multilayer protocol collaborative analysis method based on the information data chain comprises the following steps:
step (A), detecting an MMS message of a station control layer in real time, judging whether remote control operation of a measurement and control device occurs, and if the remote control operation does not occur, jumping to the step (E) to enter next verification; if the remote control operation occurs, recording the information of the measurement and control device corresponding to the remote control, and executing the step (B);
step (B), detecting the GOOSE message of the process layer in real time, judging whether the GOOSE message of the remote control outlet of the measurement and control device exists or not, if not, reporting that the measurement and control device is abnormal, and skipping to the step (E) to enter the next verification; if yes, entering a waiting moment, waiting for the opening operation of the switch, and entering the step (C);
step (C), detecting the GOOSE message of the process layer in real time, judging whether the GOOSE message with the position displacement of the intelligent terminal of the switch exists or not, if not, reporting that an outlet loop of the intelligent terminal is abnormal, and jumping to the step (E) to enter the next verification; if so, performing step (D);
step (D), detecting the MMS message of the station control layer in real time, judging whether the MMS message with the position displacement measured and controlled by the switch exists or not, if not, reporting that the remote measurement of the measuring and controlling device is abnormal, and then executing the step (E) to enter the next verification; if the intelligent terminal is normal, reporting that the monitoring and control loop and the intelligent terminal outlet loop are normal, and then executing the step (E) to enter next verification;
and (E), ending the verification process and entering next verification.
In the foregoing method for cooperatively analyzing a multilayer protocol of an intelligent substation based on an information data link, the method for determining whether a remote control operation of a measurement and control device occurs in step (a) is as follows: searching MMS messages of a station control layer, and detecting whether the following four messages exist: remotely selecting a SelVal message, remotely selecting a service Response SelVal Response message, remotely executing an operator message, and remotely executing a service Response operator Response message; if all the remote control operation devices exist, the remote control operation of the measurement and control device is considered to occur.
In the foregoing method for cooperatively analyzing multilayer protocols of an intelligent substation based on an information data link, the method for recording information of a measurement and control device corresponding to a remote control in step (a) is as follows: recording a DomainName field in the remote control selection SelVal message, and according to the MAC address and the switch deflection information position of the GOOSE message of the measurement and control device corresponding to the preferred DomainName field in the SCD file of the station, also selecting the APPID and the switch deflection information position of the GOOSE message of the measurement and control device corresponding to the DomainName field.
In the foregoing method for cooperatively analyzing a multilayer protocol of an intelligent substation based on an information data link, the method for determining whether a GOOSE message is stored at a remote control outlet of the measurement and control device in step (B) includes: and (3) detecting the GOOSE message of the process layer, screening the GOOSE message containing the MAC address recorded in the step (A), and detecting whether the displacement information of the remote control outlet occurs or not.
In the information data chain-based intelligent substation multilayer protocol collaborative analysis method, the waiting time in the step (B) is set to avoid the longest action time of the switch, and generally set to be 100-200 ms.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. An intelligent substation multilayer protocol collaborative analysis method based on an information data link is characterized in that: comprises the following steps of (a) carrying out,
step (A), detecting MMS messages of a station control layer in real time, and judging whether remote control operation of a measurement and control device occurs, wherein the specific method comprises the following steps: searching MMS messages of a station control layer, and detecting whether the following four messages exist: the remote control selects a SelVal message, the remote control selects a service Response SelVal Response message, the remote control executes an operator message and the remote control executes a service Response operator Response message, and if all the messages exist, the remote control operation of the measurement and control device is considered to occur; if the remote control operation does not occur, jumping to the step (E) to enter the next verification; if the remote control operation occurs, recording the information of the measurement and control device corresponding to the remote control, and executing the step (B);
step (B), detecting the GOOSE message of the process layer in real time, judging whether the GOOSE message of the remote control outlet of the measurement and control device exists or not, if not, reporting that the measurement and control device is abnormal, and skipping to the step (E) to enter the next verification; if yes, entering a waiting moment, waiting for the opening operation of the switch, and entering the step (C);
step (C), detecting the GOOSE message of the process layer in real time, judging whether the GOOSE message with the position displacement of the intelligent terminal of the switch exists or not, if not, reporting that an outlet loop of the intelligent terminal is abnormal, and jumping to the step (E) to enter the next verification; if so, performing step (D);
step (D), detecting the MMS message of the station control layer in real time, judging whether the MMS message with the position displacement measured and controlled by the switch exists or not, if not, reporting that the remote measurement of the measuring and controlling device is abnormal, and then executing the step (E) to enter the next verification; if the intelligent terminal is normal, reporting that the monitoring and control loop and the intelligent terminal outlet loop are normal, and then executing the step (E) to enter next verification;
and (E), ending the verification process and entering next verification.
2. The intelligent substation multi-layer protocol collaborative analysis method based on the information data chain as claimed in claim 1,
the method for recording the information of the measurement and control device corresponding to the remote control in the step (A) specifically comprises the following steps: recording a DomainName field in the remote control selection SelVal message, and selecting the MAC address and the switch deflection information position of the GOOSE message of the measurement and control device corresponding to the DomainName field according to the SCD file of the station, or selecting the APPID and the switch deflection information position of the GOOSE message of the measurement and control device corresponding to the DomainName field.
3. The intelligent substation multilayer protocol collaborative analysis method based on the information data chain according to claim 1 is characterized in that:
the method for judging whether the remote control export GOOSE message of the measurement and control device exists in the step (B) specifically comprises the following steps: and (3) detecting the GOOSE message of the process layer, screening the GOOSE message containing the MAC address recorded in the step (A), and detecting whether the displacement information of the remote control outlet occurs or not.
4. The intelligent substation multilayer protocol collaborative analysis method based on the information data chain according to claim 1 is characterized in that:
and (C) setting the size of the waiting time in the step (B) to avoid the longest action time of the switch.
5. The intelligent substation multilayer protocol collaborative analysis method based on the information data chain is characterized in that: and (B) setting the size of the waiting time in the step (B) to be 100-200 ms.
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| CN109981359A (en) * | 2019-03-14 | 2019-07-05 | 国网福建省电力有限公司 | A kind of intelligent substation remote control anomaly analysis diagnostic method and device |
| JP2022107463A (en) * | 2021-01-08 | 2022-07-21 | 株式会社日立製作所 | Plant controller, plant control method, and program |
| CN113466584B (en) * | 2021-06-22 | 2023-07-07 | 国网安徽省电力有限公司超高压分公司 | Fault diagnosis positioning method for tripping and closing monitoring |
| CN113824724B (en) * | 2021-09-24 | 2023-09-22 | 山东能士信息科技有限公司 | Method and device for judging tampered sensor data of intelligent substation and storage medium |
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