CN109193945B - Automatic closed-loop checking method for telecontrol data configuration of intelligent substation - Google Patents
Automatic closed-loop checking method for telecontrol data configuration of intelligent substation Download PDFInfo
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Abstract
The invention relates to a method for automatically performing closed-loop check on telecontrol data configuration of an intelligent substation, which specifically comprises a substation, more than one regulating and controlling master station, a substation monitoring system, more than one protecting and measuring device, a telecontrol device and an automatic closed-loop check system arranged in a portable industrial personal computer; an automatic closed-loop check system is additionally deployed in the transformer substation; the automatic closed-loop check system is connected with a DL/T860 communication dual-network in the transformer substation, and establishes normal DL/T860 communication with all protection measurement and control devices in the transformer substation; the automatic closed-loop checking system establishes special communication with all the regulation and control master stations and the monitoring system to complete the complete closed-loop of data. The automatic closed-loop check of the invention does not need to plug and unplug the network cable of the protection measurement and control or telecontrol device, thereby ensuring the stability of the communication link.
Description
Technical Field
The application relates to the technical field of power systems, in particular to closed-loop check for telecontrol data configuration of an IEC61850 intelligent substation.
Background
Along with the construction of the intelligent transformer substation, more and more intelligent transformer substation construction work is carried out, and new requirements under new modes follow; in the construction link of the transformer substation, one of the most prominent problems is the point-to-point checking work of telecontrol data configuration. Under the condition of an intelligent substation, the configuration of the whole system of the substation is more increased and more complicated, and under the condition, if a configuration problem is found in the process of carrying out telecontrol data point-to-point verification, after configuration adjustment is carried out, point-to-point verification is usually required to be carried out on all telecontrol signals again.
The existing telecontrol data configuration automatic checking method adopts an IEC61850 simulation method, a scheduling signal table is led out from a master station side, corresponding signal points are found from substation configuration through name matching, and a simulation device generates signal changes of the corresponding signal points, so that a telecontrol machine generates corresponding change signals and sends the change signals to the scheduling master station; and performing closed-loop check by comparing the consistency of the analog change signal and the change signal received by the scheduling master station. The method is characterized in that:
simulating an IED device IEC61850 server in the transformer substation, and communicating the simulation device with the telemechanical device under the condition that the telemechanical device is disconnected from communicating with an actual device in the transformer substation;
deriving a signal table from the master station, wherein the signal table comprises a signal serial number, a signal type and a signal name; wherein the signal serial number is the information point number, and the signal name is used as an index key word;
the dispatching master station sends the received signals back to the transformer substation, and the closed-loop debugging system measures the final closed-loop result of the signals by comparing and simulating the consistency of the signals which change and the signals which are sent back by dispatching.
The prior art has the following defects
(1) All relay protection devices of the transformer substation normally operate, when signal automatic closed-loop check is carried out, communication between a protection measurement and control device and a telecontrol device needs to be interrupted, the telecontrol device and a dispatching device cannot receive the actual signal state of the protection device, and the actual operation condition of a power system cannot be reflected; and the communication between the measurement and control device and the telecontrol device is interrupted, the network cable plugging operation can be inevitably carried out, and the condition of unreliable communication connection can be caused.
(2) Signal names are used as information index items in the information checking process, the signal names of the transformer substation and the signal names of the dispatching master station are respectively configured, and the signal names of the transformer substation and the signal names of the dispatching master station are much inconsistent; to solve this problem, only fuzzy matching and manual checking can be used to confirm the signal matching, so that there is a matching error.
(3) After the telemonitoring signal is acquired from the measurement and control device, the telemonitoring signal is uploaded for scheduling only by coefficient conversion, and different scheduling methods may exist; the relation of a conversion coefficient is probably existed between the telemetering signal value generated by the analog device and the telemetering value returned by the scheduling, which causes the accuracy in the telemetering value checking process to be seriously reduced.
Disclosure of Invention
In view of the above, the present invention provides a method for automatically performing closed-loop and closed-loop check on telemechanical data configuration, which can perform the operation of performing the check on the telemechanical data configuration without disconnecting the telemechanical from the actual device in the substation.
The invention is realized by adopting the following scheme: a method for automatically performing closed-loop check on telecontrol data configuration of an intelligent substation comprises the following steps:
step S1: the method comprises the steps of importing a substation SCD model and a telecontrol Configuration Description file (Remote Configuration Description) into an automatic closed-loop checking system, detecting according to signals on an RCD file to realize data model initialization work and produce a signal form needing automatic closed-loop checking and verification;
step S2: deploying a portable industrial personal computer where the automatic closed-loop check system is located into a corresponding transformer substation, interconnecting the portable industrial personal computer with a dual-network of station control layer DL/T860 communication of the transformer substation, and establishing a data loopback link of each regulation and control master station and the transformer substation monitoring system to the automatic closed-loop check system;
step S3: starting an automatic closed-loop check system, and establishing data transmission communication between substitution services in DL/T860 communication and a transformer substation monitoring system, all protection measurement and control devices and all regulation and control master stations;
step S4: and performing automatic closed-loop signal verification, wherein the automatic closed-loop signal verification system completes signal verification in sequence according to the signal form generated in the step S1.
Further, step S4 further includes the following steps:
step S41: the replacement service in the DL/T860 communication sends a replacement service instruction to the corresponding protection measurement and control device, the protection measurement and control device generates a corresponding replacement signal, the protection measurement and control device sends the semaphore of the corresponding replacement signal to the transformer substation monitoring system and the telecontrol device, and the replacement service in the DL/T860 communication informs the protection measurement and control device and generates a corresponding signal setting value by the protection measurement and control device, so that the operation of plugging and unplugging a network cable is avoided, and the hidden danger caused by the corresponding operation can be effectively reduced; the corresponding replacing signals are directly generated by the protection measurement and control device, a communication loop from the protection measurement and control device to the telecontrol device can be synchronously detected, the verification range is wider, the generated data has data with replacing related quality, and the corresponding data processing at the regulation and control master station end is more convenient to realize.
Step S42: the telemechanical device transmits the received semaphore corresponding to the replacing signal to each regulation and control master station;
step S43: and the control master stations and the transformer substation monitoring system send the received semaphore of the substituted signal back to the automatic closed-loop checking system, and the automatic closed-loop checking system finishes signal checking by comparing the substituted instruction value sent by the corresponding protection measurement and control device with the received loopback value.
Furthermore, the signal form is a full table of all the signals of the regulation and control master station, including signal sequence numbers, signal types and signal names, and is used for supporting organization and checking according to the regulation and control master station.
Further, the substitute service notification protection measurement and control device of DL/T860 communication sets the corresponding signal into corresponding telemetering, remote signaling, and remote pulse data, and sends the corresponding telemetering, remote signaling, and remote pulse data to the regulation and control master station and the substation monitoring system, and the regulation and control master station and the substation monitoring system send the received telemetering, remote signaling, and remote pulse data back to the automatic closed-loop check system to complete the whole automatic closed-loop check closed-loop verification process.
Preferably, the transformer substation monitoring system and the regulation and control master station are transversely compared through the returned primary values and are combined with data generated by simulation for checking, so that the processing of conversion coefficients is effectively avoided, and meanwhile, the data processing coefficients of the protection measurement and control device to the telecontrol device and the data processing coefficients of the protection measurement and control device to the regulation and control master station are effectively brought into the checking and verifying range, and the effectiveness of automatic closed-loop checking work is enhanced.
Compared with the prior art, the invention has the following beneficial effects:
(1) the automatic closed-loop check of the invention does not need to plug and unplug the network cable of the protection measurement and control or telecontrol device, thereby ensuring the stability of the communication link.
(2) The invention adopts the data association indexing method combining the SCD model and the RCD file, ensures the reliability and uniqueness of data indexing, and avoids the checking failure condition caused by the non-standard signal name configuration.
(3) The invention adopts a new method of generating signal data by replacing service simulation with DL/T860 communication, and can verify the communication between the protection measurement and control device and the telecontrol device.
(4) The invention completes the telemetering data check by the data of the primary value returned by the regulation and control main station and the monitoring system, can avoid the telemetering data check failure caused by the existence of the conversion coefficient, and also verifies the processing of the telemechanical data uploading and the regulation and control main station data.
Drawings
FIG. 1 is a schematic block diagram of a system according to an embodiment of the present invention.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
As shown in fig. 1, in this embodiment, an automatic closed-loop check system is additionally deployed in a substation; the automatic closed-loop check system is connected with a DL/T860 communication dual-network in the transformer substation, and establishes normal DL/T860 communication with all protection measurement and control devices in the transformer substation; the automatic closed-loop checking system establishes special communication with all the regulation and control master stations and the monitoring system to complete the complete closed-loop of data.
The automatic closed-loop check system is deployed under the condition that the original system work of the transformer substation is not influenced, the automatic closed-loop check system adopts different example numbers to communicate with the protection measurement and control device, and the communication with the protection measurement and control device is established without influencing the original communication between the protection measurement and control device and the monitoring system and the telecontrol; the automatic closed-loop check system takes an SCD (substation configuration description) model of a transformer substation and an RCD (remote control device) file of a master control station as data models to be imported, detection is carried out according to signals on the RCD file, a protection and measurement device is informed of setting corresponding signals into corresponding values through a substitute service of DL/T860 communication, the master control station and the monitoring system send received three-remote (remote measurement, remote signaling and remote pulse) data back to the automatic closed-loop check system, and the whole automatic closed-loop check closed-loop verification process is completed.
Specifically, the present embodiment provides a method for automatic closed-loop and closed-loop check of telecontrol data configuration, including the following steps:
step S1: importing the SCD model and the RCD file of the transformer substation into an automatic closed-loop checking system, detecting according to signals on the RCD file to realize data model initialization work and produce a signal form which needs automatic closed-loop checking and verification;
step S2: deploying a portable industrial personal computer where the automatic closed-loop check system is located into a corresponding transformer substation, interconnecting the portable industrial personal computer with a dual-network of station control layer DL/T860 communication of the transformer substation, and establishing a data loopback link of each regulation and control master station and the transformer substation monitoring system to the automatic closed-loop check system;
step S3: starting an automatic closed-loop check system, and establishing data transmission communication between substitution services in DL/T860 communication and a transformer substation monitoring system, all protection measurement and control devices and all regulation and control master stations;
step S4: and performing automatic closed-loop signal verification, wherein the automatic closed-loop signal verification system completes signal verification in sequence according to the signal form generated in the step S1.
In this embodiment, step S4 further includes the following steps:
step S41: the replacement service in the DL/T860 communication sends a replacement service instruction to the corresponding protection measurement and control device, the protection measurement and control device generates a corresponding replacement signal, the protection measurement and control device sends the semaphore of the corresponding replacement signal to the transformer substation monitoring system and the telecontrol device, and the replacement service in the DL/T860 communication informs the protection measurement and control device and generates a corresponding signal setting value by the protection measurement and control device, so that the operation of plugging and unplugging a network cable is avoided, and the hidden danger caused by the corresponding operation can be effectively reduced; the corresponding replacing signals are directly generated by the protection measurement and control device, a communication loop from the protection measurement and control device to the telecontrol device can be synchronously detected, the verification range is wider, the generated data has data with replacing related quality, and the corresponding data processing at the regulation and control master station end is more convenient to realize.
Step S42: the telemechanical device transmits the received semaphore corresponding to the replacing signal to each regulation and control master station;
step S43: and the control master stations and the transformer substation monitoring system send the received semaphore of the substituted signal back to the automatic closed-loop checking system, and the automatic closed-loop checking system finishes signal checking by comparing the substituted instruction value sent by the corresponding protection measurement and control device with the received loopback value.
In this embodiment, the signal form is a full table of all the signals of the control master station, including signal serial numbers, signal types, and signal names, and is used to support organization and viewing according to the control master station.
In this embodiment, the substitute service notification protection measurement and control device for DL/T860 communication sets the corresponding signal to the corresponding telemetry, remote signaling, and remote pulse data, and sends the data to the regulation and control master station and the substation monitoring system, and the regulation and control master station and the substation monitoring system send the received telemetry, remote signaling, and remote pulse data back to the automatic closed-loop check system to complete the whole automatic closed-loop check closed-loop verification process.
Preferably, in this embodiment, the transformer substation monitoring system and the regulation and control master station perform transverse comparison on the returned primary values, and perform verification by combining with data generated by simulation, so that not only is processing of a conversion coefficient effectively avoided, but also data processing coefficients for protecting the measurement and control device to the telemechanical device and from the telemechanical device to the regulation and control master station are effectively included in a verification range, and the effectiveness of automatic closed-loop verification work is enhanced.
Particularly, in the embodiment, in the monitoring system and the regulation and control master station, the final display and use of the telemetering data adopt a primary value; the transmission of telemetering data from a protection measurement and control device to a telecontrol device and from the telecontrol device to a regulation and control main station is usually not a primary value; therefore, a conversion coefficient exists between the analog telemetering data generating end and the scheduling loopback data, and difficulty is brought to accurate checking of the telemetering data. In this embodiment, the transformer substation monitoring system and the regulation and control master station perform transverse comparison through the returned primary values, and combine with data generated by simulation to perform checking, so that not only is the processing of conversion coefficients effectively avoided, but also data processing coefficients for protecting the measurement and control device to the telemechanical device and from the telemechanical device to the regulation and control master station are effectively included in the checking and verifying range, and the effectiveness of automatic closed-loop checking work is enhanced.
Preferably, the substation SCD model and the scheduling RCD file are used as the data model, the Reference of the IEC61850 standard model is uniformly used as the data index for the data index, the accuracy and the uniqueness of the substation data positioning are ensured, the accuracy of the checking work is ensured, and the efficiency of the checking work can be effectively improved; each signal in the substation has unique reference information; the RCD file is a standard file of a remote action point table file of the intelligent substation of the national power grid, and the file not only has conventional remote action signal information such as signal names, but also critically retains original reference information of signals; the problems of signal accuracy and uniqueness can be effectively solved by comparing and indexing the reference information of the two.
In this embodiment, the generation of the check data informs the protection measurement and control device of the generation of the corresponding measurement value through a replacement service mode in DL/T860 communication, so that the normal communication of the device is not affected, and the generated data is uploaded with corresponding quality information, thereby providing a good basis for subsequent identification processing and checking of the change data; and the telemetry data check is carried out by combining the primary value returned by the scheduling master station and the primary value sent by the monitoring system in the telemetry closed loop feedback loop, so that the difficulty in check caused by the existence of a numerical conversion coefficient can be avoided, the telecontrol coefficient and the scheduling coefficient can be brought into the check range, and the reliability of the information of the whole upper loop is ensured.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (3)
1. A method for automatically performing closed-loop check on telecontrol data configuration of an intelligent substation is characterized by comprising the following steps: the system comprises a transformer substation, more than one regulating and controlling master station, a transformer substation monitoring system, more than one protection and monitoring device, a telecontrol device and an automatic closed-loop checking system arranged in a portable industrial personal computer; the method comprises the following steps:
step S1: importing the SCD model and the RCD file of the transformer substation into an automatic closed-loop checking system, detecting according to signals on the RCD file to realize data model initialization work and produce a signal form which needs automatic closed-loop checking and verification;
step S2: deploying a portable industrial personal computer where the automatic closed-loop check system is located into a corresponding transformer substation, interconnecting the portable industrial personal computer with a dual-network of station control layer DL/T860 communication of the transformer substation, and establishing a data loopback link of each regulation and control master station and the transformer substation monitoring system to the automatic closed-loop check system;
step S3: starting an automatic closed-loop check system, and establishing data transmission communication between substitution services in DL/T860 communication and a transformer substation monitoring system, all protection measurement and control devices and all regulation and control master stations;
step S4: performing automatic closed-loop signal verification, wherein the automatic closed-loop verification system completes signal verification in sequence according to the signal form generated in the step S1;
wherein, step S4 specifically includes the following steps:
step S41: the replacement service in the DL/T860 communication sends a replacement service instruction to a corresponding protection measurement and control device, the protection measurement and control device generates a corresponding replacement signal, and the protection measurement and control device sends the semaphore of the corresponding replacement signal to a transformer substation monitoring system and a telecontrol device;
step S42: the telemechanical device transmits the received semaphore corresponding to the replacing signal to each regulation and control master station;
step S43: and the control master stations and the transformer substation monitoring system send the received semaphore of the substituted signal back to the automatic closed-loop checking system, and the automatic closed-loop checking system finishes signal checking by comparing the substituted instruction value sent by the corresponding protection measurement and control device with the received loopback value.
2. The method for automatically performing closed-loop check on the telecontrol data configuration of the intelligent substation according to claim 1, characterized in that: the signal form is a full table of all the signals of the regulation and control main station, including signal serial numbers, signal types and signal names, and is used for supporting organization and checking according to the regulation and control main station.
3. The method for automatically performing closed-loop check on the telecontrol data configuration of the intelligent substation according to claim 1, characterized in that: the corresponding signals generated by the protection measurement and control device are telemetering, remote signaling and remote pulse data.
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| CN112910093B (en) * | 2021-03-04 | 2023-05-30 | 广西电网有限责任公司钦州供电局 | Efficient method for checking telecontrol signal of scheduling master station |
| CN114019284B (en) * | 2021-11-04 | 2024-08-27 | 国网江苏省电力有限公司电力科学研究院 | Monitoring information checking system and method for access transformer substation of new generation master station |
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