CN107565690B - Rapid replacement method for transformer substation measurement and control device under fault condition - Google Patents
Rapid replacement method for transformer substation measurement and control device under fault condition Download PDFInfo
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- CN107565690B CN107565690B CN201710789116.1A CN201710789116A CN107565690B CN 107565690 B CN107565690 B CN 107565690B CN 201710789116 A CN201710789116 A CN 201710789116A CN 107565690 B CN107565690 B CN 107565690B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- 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
Abstract
The invention discloses a quick replacement method under the condition of a fault of a measurement and control device of a transformer substation, which comprises the steps of analyzing an IEC61850 model of a new measurement and control device, obtaining a three-remote data model, simultaneously deriving the three-remote data model of an old measurement and control device from a monitoring system database, and automatically matching and generating a database point table according to the mapping relation between the data model and an association type and an association terminal. Virtualizing new and old measurement and control devices into different data source channels, establishing channel association with the generated database point table, and implementing rapid replacement of the measurement and control devices by using a multi-channel switching technology. According to the invention, the measurement and control device is added in a manner of adding a new data source channel, the original monitoring system and the configuration of a remote database are not changed, and all the associations are automatically realized through a program, so that the problems of accuracy and reliability in database maintenance work are effectively solved, the probability of manual error and the debugging workload are reduced, and a technical guarantee is provided for realizing the quick replacement of the measurement and control device.
Description
Technical Field
The invention relates to the technical field of electricians, in particular to a quick replacement method under the condition of a fault of a substation measurement and control device.
Background
With the continuous advance of power grid construction, the number of substations serving as hubs is more and more, the operation time of the substations is longer and longer, the operation time of the substations serving as a measurement and control device for transformer substation data acquisition is close to or exceeds the service life, risks such as component aging, acquisition precision reduction and unstable operation exist, the safe and stable operation of the power grid is seriously affected, and the transformation is urgently needed. However, the importance of the substation determines that it is impossible to modify all the power failures of the equipment which is out of service, and the modification can only be performed in batches at intervals, which causes some substation devices to fail and to need urgent replacement without being modified. At present, most of the measurement and control devices of the transformer substation are replaced by devices supporting IEC61850 protocols, so that the requirement of equipment technology improvement is met.
Because the new and old measurement and control devices belong to products developed at different periods, the models of the new and old measurement and control devices are different in the aspects of wiring, device models, communication modes, transmission protocols and the like, database models, pictures, reports and the like of monitoring and telecontrol systems need to be reconfigured and debugged, the data can be completed within days, faults can not be quickly recovered, and the quality of power grid data is seriously influenced.
Disclosure of Invention
In view of the above defects in the prior art, the technical problem to be solved by the present invention is to provide a method for quickly replacing a measurement and control device of a transformer substation in case of a fault, which is applied to the measurement and control device replacement in the process of transforming or first-aid repairing the transformer substation, so as to solve the problems of slow device replacement, large debugging workload, and poor power grid data quality.
The invention discloses a quick replacement method under the condition of a fault of a measurement and control device of a transformer substation, which comprises the following steps of: step 1, analyzing an IEC61850 model of a new measurement and control device (a measurement and control device for replacement is prepared under a fault condition, which is called as a new measurement and control device for short, and the professional term is not repeated herein), acquiring a three-remote data model, simultaneously deriving a three-remote data model of an old measurement and control device (a measurement and control device with a fault, which is called as an old measurement and control device for short, and the professional term is not repeated herein) from a monitoring system, generating a comparison table of the three-remote data model, the association type and the association terminal, establishing a three-remote data model mapping relation of the new measurement and control device and the old measurement and control device, and automatically matching and generating a database point; step 2, regarding the new measurement and control device and the old measurement and control device as different data source channels, and establishing channel association with the generated database point table; and 3, realizing rapid replacement of the measurement and control device based on a multi-channel data switching technology.
The specific method of the step 1 is as follows:
step 11, analyzing an IEC61850 model of the new measurement and control device, obtaining data definition of a data set through the name of the data set in the report control block, and generating three remote messages;
step 12, combining data attributes and virtual terminal mapping files in the IEC61850 model to generate a comparison table of the three-remote data, the association types and the association terminals of the new measurement and control device;
step 13, exporting an old measurement and control device data model from a monitoring system database, and generating a comparison table of the old measurement and control device three-remote data, the association type and the association terminal according to the terminal definition;
and step 14, associating the three remote data models of the new and old measurement and control devices one by one according to the two derived comparison tables, and automatically generating a database point table.
In step 11, the specific method is as follows:
and analyzing the new measurement and control device IEC61850 model, reporting the name of the data set in the control block, acquiring the data with the function constraint symbols of ST, MX and CO in the definition of the data set, and generating the three remote information.
In step 12, the specific method is as follows:
according to the attribute of three-remote data in an IEC61850 model, data with the function constraint of ST, MX and CO are respectively corresponding to remote signaling, remote measuring and remote control types, and the subtypes of a switch, a disconnecting link, voltage and current are respectively matched according to the meaning of the model; and reading short addresses in the three-remote-in and three-remote-out data, acquiring terminal serial numbers corresponding to the short addresses in the virtual terminal mapping file, and generating a comparison table of the three-remote-in data, the associated types and the associated terminals of the new measurement and control device.
In step 13, the specific method is as follows:
and deriving an old measurement and control device data model from a monitoring system database, associating data in a switch knife-switch table and a state table in the model with a remote signaling type, associating data in a measurement table with a remote signaling type, associating data in the control table with a remote control type, reading point numbers of input and output measurement points in the database as terminal serial numbers, and generating a comparison table of the old measurement and control device three remote data, the associated types and the associated terminals.
In step 14, the specific method is as follows:
and according to the derived two comparison tables of the three remote data of the new and old measurement and control devices, the association type and the association terminal, associating the three remote data with the same association type and the same association terminal one to one, and automatically generating a database information point table.
In the step 2, the specific method comprises the following steps:
and taking the new and old measurement and control devices as independent data source channels, respectively generating channel parameters, and establishing channel association between each piece of three-remote data and the new and old measurement and control devices in the generated database point table.
The channel association refers to the automatic association between the new and old measurement and control devices and the channel parameters in the database point table.
In step 3, the specific method is as follows:
each three-remote data comprises two groups of channel data, the two groups of channels are respectively associated with a new measurement and control device and an old measurement and control device, only the data of the currently selected channel is valid, and the currently used channel is switched by adopting an autonomous or manual intervention mode according to the working condition of the channel and the validity of the data so as to realize the switching of the multi-channel data; because the channel is actually associated with the measurement and control device, the switching of the channel is equal to the replacement of the device, and the rapid replacement of the measurement and control device under the fault condition is further realized.
The three-remote data include, but are not limited to, switch data, switch three-phase current, switch active power, switch reactive power, and switch data.
The invention has the beneficial effects that:
the invention takes the association type and the association terminal as reference objects, realizes the association of the new and old measurement and control data models by establishing a comparison table of the new and old measurement and control data models and the association type and the terminal, further regards the new and old measurement and control devices as different data channels, and realizes the replacement of the measurement and control devices by adopting a channel switching mode. The method has the greatest advantages that the measurement and control device is added in a mode of adding a new data source channel, the original monitoring system and the configuration of a remote database are not changed, pictures and reports do not need to be made again, all the associations are automatically realized through programs, so that the problems of accuracy and reliability in database maintenance work are effectively solved, the probability of manual errors is reduced, the workload of debugging is greatly reduced, and the technical support is provided for realizing the quick replacement of the measurement and control device.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a flow chart of the automatic generation of a database point table according to the present invention;
FIG. 2 is a schematic diagram of the present invention.
Detailed Description
As shown in fig. 1, a method for quickly replacing a substation measurement and control device in case of a fault includes the following steps:
step 1, analyzing an IEC61850 model of a new measurement and control device, obtaining a three-remote data model, simultaneously exporting the three-remote data model of an old measurement and control device from a monitoring system, and automatically matching and generating a database point table according to the mapping relation between the data model and the association type and the association terminal;
step 2, virtualizing the new and old measurement and control devices into different data source channels, and establishing channel association with the generated database point table;
and 3, rapidly replacing the measurement and control device by using a multi-channel data switching technology.
In this embodiment, the step 1 specifically includes:
step 11, analyzing an IEC61850 model of the new measurement and control device, acquiring data set data of the new measurement and control device through a report control block, and generating three remote information;
step 12, generating a comparison table of the three-remote data, the association type and the association terminal by combining the data attribute and the virtual terminal mapping file in the IEC61850 model;
step 13, exporting an old measurement and control device data model from a monitoring system database, and generating a comparison table of the three-remote data, the associated type and the associated terminal according to the terminal definition;
and step 14, associating the new measurement and control data model with the original database model one by one according to the two derived comparison tables, and automatically generating a database point table.
In this embodiment, the channel association in step 2 specifically includes:
and automatically associating the new and old measurement and control devices with the channel parameters in the database point table, regarding the new and old measurement and control devices as an independent data source channel, and associating the channels in the generated database point table.
In this embodiment, the multichannel data switching technology in step 3 is as follows:
each three-remote data comprises two groups of channel data, the two groups of channels are respectively associated with a new measurement and control device and an old measurement and control device, only the data of the currently selected channel is valid, the currently used channel is switched by adopting an autonomous or manual intervention mode according to the working condition of the channel and the validity of the data, and then the measurement and control devices are quickly replaced under the fault condition.
In this embodiment, the step 11 specifically includes:
and analyzing the new measurement and control device IEC61850 model, and acquiring data with the function constraints of ST, MX and CO in the data set definition through the report control block to generate the three remote information.
In this embodiment, the three-remote data includes, but is not limited to, switching data, switching three-phase current, switching active power, switching reactive power, and disconnecting link data.
One specific example is given below:
taking the transformation of a switch interval of a 500-kilovolt transformer substation 5021 as an example, the application of the rapid replacement method in practical engineering is specifically described.
(1) Model parsing
The new measurement and control device adopts an IEC61850 model, and the information point table is shown as the following table:
the old measurement and control device model is directly derived from the monitoring system database, and the information point table is shown as the following table:
(2) information association
And associating the three remote data information one to one according to the association type and the association terminal in the new and old measurement and control information point table.
(3) Generating database point tables
And automatically generating device, remote signaling, remote measuring and remote control channel records in a database in sequence according to the associated data information.
(4) Channel automatic switching
As shown in the application diagram of fig. 2, the monitoring system simultaneously collects data of the new and old measurement and control devices, switches the currently used channel according to the working condition of the device and the validity of the data, updates the real-time database information only by the data of the currently used channel, and directly discards the data of the non-currently used channel.
All applications of the monitoring system are based on data in a real-time database, for the database, only one data model exists at a single interval, each data model has a plurality of channels from which data are sourced, the data refreshing adopts data sent by the currently used channel, the replacement of a new device and an old device is equivalent to simple channel switching, no influence is caused on advanced applications of the monitoring system, such as alarms, graphs and reports, and the like, and technical guarantee is provided for quick replacement.
Under normal conditions, the old measurement and control device operates, the new measurement and control device is standby and is not put into operation, the working condition of a channel (namely a channel I) corresponding to the old measurement and control device is effective, the working condition of a channel (namely a channel II) corresponding to the new measurement and control device is invalid, the current channel used by the interval signal is judged to be the channel I according to a channel switching algorithm, and the monitoring system refreshes a real-time library by adopting data sent by the old measurement and control device; when a fault occurs, the new measurement and control device is put into operation, the old measurement and control device is withdrawn, the first channel working condition is invalid, the second channel working condition is valid, the channel switching module starts a switching flow, the currently used channel of the data at the interval of three remote distances is switched into the second channel, and the monitoring system refreshes a real-time library by adopting the data sent by the new measurement and control device.
Because the whole data switching is completed in the data acquisition process, the change of the measurement and control device does not affect the application of the monitoring system, and as long as the data models of the new and old measurement and control devices are correctly associated, the rapid replacement under the fault condition can be completely realized.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (1)
1. A quick replacement method under the condition of a fault of a measurement and control device of a transformer substation is characterized by comprising the following steps:
step 1, analyzing an IEC61850 model of a new measurement and control device, obtaining a three-remote data model, simultaneously exporting a three-remote data model of an old measurement and control device from a monitoring system, generating a comparison table of the three-remote data model, association types and association terminals, establishing a mapping relation of the three-remote data model of the new measurement and control device and the three-remote data model of the old measurement and control device, and automatically matching and generating a database point table;
step 2, regarding the new measurement and control device and the old measurement and control device as different data source channels, and establishing channel association with the generated database point table;
3, realizing rapid replacement of the measurement and control device based on a multi-channel data switching technology;
the specific method of step 1 is as follows:
step 11, analyzing an IEC61850 model of the new measurement and control device, obtaining data definition of a data set through the name of the data set in the report control block, and generating three remote messages;
step 12, combining data attributes and virtual terminal mapping files in the IEC61850 model to generate a comparison table of the three-remote data, the association types and the association terminals of the new measurement and control device;
step 13, exporting an old measurement and control device data model from a monitoring system database, and generating a comparison table of the old measurement and control device three-remote data, the association type and the association terminal according to the terminal definition;
step 14, associating the three remote data models of the new and old measurement and control devices one by one according to the two derived comparison tables, and automatically generating a database point table;
in step 11, the specific method is as follows:
analyzing an IEC61850 model of the new measurement and control device, reporting the name of a data set in a control block, acquiring data with the function constraint symbols of ST, MX and CO in the definition of the data set, and generating three remote messages;
in step 12, the specific method is as follows:
according to the attribute of three-remote data in an IEC61850 model, the data with the function constraints of ST, MX and CO are respectively corresponding to remote signaling, remote measuring and remote control types, and the subtypes of a switch, a disconnecting link, voltage and current are respectively matched according to the meaning of the model; reading short addresses in the three-remote-in and three-remote-out data, acquiring terminal serial numbers corresponding to the short addresses in the virtual terminal mapping file, and generating a comparison table of the three-remote-in data, the association type and the association terminal of the new measurement and control device;
in step 13, the specific method is as follows:
deriving an old measurement and control device data model from a monitoring system database, associating data in a switch knife-switch table and a state table in the model with a remote signaling type, associating data in a measurement table with a remote signaling type, associating data in the control table with a remote control type, reading point numbers of input and output measurement points in the database as terminal serial numbers, and generating a comparison table of the old measurement and control device three remote data, the association type and the associated terminal;
in step 14, the specific method is as follows:
according to the derived two comparison tables of the three remote data of the new and old measurement and control devices, the correlation types and the correlation terminals, the three remote data with the same correlation types and the same correlation terminals are correlated in a one-to-one mode, and a database information point table is automatically generated;
in the step 2, the specific method comprises the following steps:
the new and old measurement and control devices are regarded as an independent data source channel, channel parameters are respectively generated, and channel association is established between each piece of three-remote data and the new and old measurement and control devices in a generated database point table;
the channel association refers to the automatic association between the new and old measurement and control devices and the channel parameters in the database point table;
in step 3, the specific method is as follows:
each three-remote data comprises two groups of channel data, the two groups of channels are respectively associated with a new measurement and control device and an old measurement and control device, only the data of the currently selected channel is valid, and the currently used channel is switched by adopting an autonomous or manual intervention mode according to the working condition of the channel and the validity of the data so as to realize the switching of the multi-channel data; because the channel is actually associated with the measurement and control device, the switching of the channel is equal to the replacement of the device, and the rapid replacement of the measurement and control device under the condition of failure is further realized;
the three-remote data comprises but is not limited to switch data, switch three-phase current, switch active power, switch reactive power and disconnecting link data.
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| CN110400236A (en) * | 2019-07-29 | 2019-11-01 | 国网河北省电力公司 | A kind of three distant table signal method for splitting of power information |
| CN113076327A (en) * | 2021-03-31 | 2021-07-06 | 国网浙江省电力有限公司检修分公司 | Method, device and equipment for fast switching and one-key updating of inlet measurement and control device |
| CN113419415B (en) * | 2021-06-17 | 2023-09-19 | 中国电力科学研究院有限公司 | Centralized redundant standby mode detection method and system for intelligent substation measurement and control system |
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