CN113972740A - Remote secondary equipment switching value diagnosis method and system based on scheduling master station - Google Patents
Remote secondary equipment switching value diagnosis method and system based on scheduling master station Download PDFInfo
- Publication number
- CN113972740A CN113972740A CN202111235310.8A CN202111235310A CN113972740A CN 113972740 A CN113972740 A CN 113972740A CN 202111235310 A CN202111235310 A CN 202111235310A CN 113972740 A CN113972740 A CN 113972740A
- Authority
- CN
- China
- Prior art keywords
- switching value
- names
- switching
- matching
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 67
- 238000003745 diagnosis Methods 0.000 title claims abstract description 49
- 230000008569 process Effects 0.000 claims abstract description 17
- 230000011664 signaling Effects 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims description 16
- 238000004590 computer program Methods 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 20
- 230000006870 function Effects 0.000 abstract description 15
- 238000004458 analytical method Methods 0.000 abstract description 11
- 108091006146 Channels Proteins 0.000 description 43
- 238000012544 monitoring process Methods 0.000 description 21
- 230000002159 abnormal effect Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000005856 abnormality Effects 0.000 description 9
- 238000005070 sampling Methods 0.000 description 9
- 230000014509 gene expression Effects 0.000 description 8
- 230000001788 irregular Effects 0.000 description 6
- 230000007774 longterm Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
-
- 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
-
- 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
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a remote secondary equipment switching value diagnosis method and system based on a scheduling master station, which comprises the following steps: constructing a dictionary library of open names based on switching values by using remote signaling values of secondary equipment; standardizing the opening names with different switching values as standard entry names by using simplified names and near-meaning words of the switching value opening entry names in the dictionary library; based on a dictionary library, the obtained standard entry names are used for realizing the matching of the switching value access channel names; and based on the matched switching value opening name, checking the switching value opening consistency, and realizing the diagnosis of the switching value. Through establishing the switching value opening analysis model, the switching value homologous comparison process is designed, the fuzzy matching algorithm is adopted to realize channel matching, the on-line inspection and automatic comparison functions of the switching value are realized, the accuracy and the working efficiency of the inspection of the switching value are effectively improved, and the error inspection caused by human errors is effectively avoided.
Description
Technical Field
The invention relates to the technical field of power grid control, in particular to a remote secondary equipment switching value diagnosis method and system based on a scheduling master station.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The secondary equipment is auxiliary equipment for monitoring, measuring, controlling, protecting and adjusting the primary equipment in the power system, the state of the secondary equipment is required to be obtained through monitoring and diagnosis, the scheduling master station can obtain redundant information from different secondary equipment types, and hidden dangers and risks existing in the secondary equipment are detected in a mutual verification mode, so that the state of the secondary equipment is monitored, but the mutual verification mode is short of a mature scheme in the existing research.
The conventional transformer substation acquires real-time operation information of a protection device through an information protection substation, the transformer substation acquires real-time operation information of secondary equipment such as a measurement and control device, relay protection, an automatic safety device, a merging unit and an intelligent terminal through a visual online monitoring and intelligent diagnosis device, and the scheduling main station can acquire switching value information of all relay protection equipment through a station-side information protection substation and a secondary equipment online monitoring and intelligent diagnosis substation.
With the increase of the scale of the power grid, the total amount of switching values collected by the relay protection equipment is greatly increased, and the requirement on monitoring of scheduling and monitoring personnel is higher and higher. The field patrol work regularly carried out by operation and maintenance personnel is difficult to ensure patrol effect due to the large increase of the number of stations and secondary equipment, and the conditions of patrol omission and wrong patrol are inevitably generated, so that adverse effects are generated on the safe and stable operation of the power system.
Meanwhile, the models and versions of the secondary equipment are various, the secondary equipment of different models has the problems of nonstandard mismatching of switching value channel names, inconsistent channel sequences and disordered classification of equipment alarm levels, and even if the secondary equipment of the same model is produced by different manufacturers, the secondary equipment of different versions has the problems of inconsistent channel names, inconsistent channel configuration quantity and the like, so that a worker is difficult to finish the switching value consistency comparison work of the secondary equipment during inspection.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a remote secondary equipment switching value diagnosis method and system based on a scheduling master station, which are used for designing a switching value homologous comparison process by establishing a switching value access analysis model, realizing channel matching by adopting a fuzzy matching algorithm, realizing the functions of online inspection and automatic comparison of the switching values, effectively improving the accuracy and the working efficiency of inspection of the switching values and effectively avoiding mistaken inspection caused by human errors.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a remote secondary equipment switching value diagnosis method based on a scheduling master station, which comprises the following steps:
constructing a dictionary library of open names based on switching values by using remote signaling values of secondary equipment;
standardizing the opening names with different switching values as standard entry names by using simplified names and near-meaning words of the switching value opening entry names in the dictionary library;
based on a dictionary library, the obtained standard entry names are used for realizing the matching of the switching value access channel names;
and based on the matched switching value opening name, checking the switching value opening consistency, and realizing the diagnosis of the switching value.
The dictionary base contains simplified names and similar words of the entry names, and different entry names are uniformly named as normalized standard entry names.
And carrying out normalized processing on the switching value input entry names of different secondary devices by using a dictionary library, and then carrying out channel name matching.
And in the process of realizing the matching of the switching value input channel name by using the obtained standard item name, all similar channels in the remote signaling value data set are initially matched by adopting a keyword matching method for each normalized communication item.
In the process of realizing switching value input channel name matching by using the obtained standard entry name, when the length of a longer character string between two input value channel name character strings is greater than the length of a keyword, the longer character string is used as a matching result.
And in the process of realizing switching value input channel name matching by using the obtained standard entry names, matching the switching value input entries which cannot be matched by adopting a fuzzy matching method until all input entries are matched.
The switching value input consistency checking process specifically comprises the steps of carrying out homologous comparison on switching value input signals among different secondary devices, giving an alarm when the switching value input signals are inconsistent, and realizing switching value diagnosis.
The second aspect of the present invention provides a system based on the method for diagnosing the switching value of the remote secondary device based on the dispatching master station, including:
the dictionary base building module is used for building a dictionary base based on the switching value opening name by utilizing the remote signaling value of the secondary equipment;
the name specification module is used for specifying the opening names with different switching values as standard entry names by using simplified names and similar words of the switching value opening entry names in the dictionary library;
the name matching module is used for realizing the matching of the switching value input channel name by using the obtained standard entry name based on the dictionary library;
and the diagnosis module is used for carrying out homologous comparison on switching value opening signals among different secondary devices based on the matched switching value opening names, giving an alarm when the switching value opening signals are inconsistent, and realizing the switching value diagnosis.
A third aspect of the invention provides a computer-readable storage medium.
A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, performs the steps in the method for diagnosing switching values of a remote secondary device based on a dispatch master station as described above.
A fourth aspect of the invention provides a computer apparatus.
A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of the method for diagnosing the switching value of a remote secondary device based on a dispatching master station as described above.
Compared with the prior art, the above one or more technical schemes have the following beneficial effects:
the method comprises the steps of utilizing the mode that the maximum length comprises field matching and keyword matching, carrying out standardization processing on common irregular opening names in the switching value of the secondary equipment, processing various expression forms of opening items into the standardized opening items, and then carrying out channel name matching work, so that accurate matching of the switching value opening channel names among different manufacturers and different versions of protection equipment can be realized, the switching value of the secondary equipment after matching is subjected to homologous comparison on opening signals, when the switching value of the secondary equipment is inconsistent, giving an alarm to realize diagnosis of the switching value of the secondary equipment, the inspection difficulty of the secondary equipment is reduced, and the mistaken inspection caused by human errors is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic diagram of an exemplary switching value analysis and diagnosis process of a relay protection device according to one or more embodiments of the present invention;
FIG. 2 is a flow diagram of maximal length inclusive field matching provided by one or more embodiments of the invention;
fig. 3 is a flowchart illustrating a comparison of switching value and switching value of a relay protection device according to one or more embodiments of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background art, a secondary device (e.g., a relay protection device) implements a relay protection function by opening and closing a switching value, and a patrol needs to ensure that the relay protection device can correctly operate when a given opening or closing instruction is given, so as to perform a function of protecting a primary device, and whether the relay protection device has a hidden trouble and an abnormality can be determined by comparing whether the relay protection devices of the same model operate when the same opening or closing instruction is input, while relay protection devices produced by different manufacturers have different batches and versions even if the same model is the same, and problems such as non-normative mismatch of switching value channel names, non-uniform channel sequence, and disordered classification of device alarm levels exist, so that a worker needs to implement a comparison of the switching value consistency of the relay protection devices after a master station matches the switching value channels of the relay protection devices during the patrol, this will increase the difficulty of the patrol and cause a wrong patrol.
Therefore, the following embodiment provides a remote secondary equipment switching value diagnosis method and system based on a scheduling master station, a switching value homologous comparison process is designed by establishing a switching value access analysis model, channel matching is realized by adopting a fuzzy matching algorithm, the on-line inspection and automatic comparison functions of the switching values are realized, the accuracy and the working efficiency of the switching value inspection are effectively improved, and the error inspection caused by human errors is effectively avoided.
The first embodiment is as follows:
as shown in fig. 1 to 3, the method for diagnosing the switching value of the remote secondary device based on the scheduling master station includes the following steps:
constructing a dictionary library of open names based on switching values by using remote signaling values of secondary equipment;
standardizing the opening names with different switching values as standard entry names by using simplified names and near-meaning words of the switching value opening entry names in the dictionary library;
based on a dictionary library, the obtained standard entry names are used for realizing the matching of the switching value access channel names;
and performing homologous comparison on switching value input signals between different secondary devices based on the matched switching value input names, and giving an alarm when the switching value input signals and the secondary devices are inconsistent to realize the switching value diagnosis.
Taking the relay protection device as an example, the following details are provided:
the switching value of the relay protection equipment is switched in, and the equipment alarm analysis and diagnosis function information sources are as follows:
the basic machine account information and the model information of the primary equipment and the secondary equipment are uniformly acquired from the scheduling master station, and the basic machine account information and the model information specifically include but are not limited to the following information:
(1) primary system parameters: plant stations, lines, transformers, circuit breakers, busbars, etc.
(2) Secondary equipment parameters: and the relay protection model information and the parameters configured by each primary device.
As shown in fig. 1, the typical switching value analysis and diagnosis system design of the relay protection device includes the following steps S1 to S8:
s1: the information for monitoring the switching value state by the scheduling main station comprises information such as external access of relay protection equipment, device alarm and the like, two forms of online acquisition of data of main station end systems such as a signal protection main station and a secondary equipment online monitoring main station are realized, and the specific implementation method and the application scene are as follows:
s1-1: and for the transformer substation of which the station end is only provided with the information protection substation, the scheduling main station acquires the remote information value of the relay protection equipment received by the station end information protection substation through the information protection main station system. Conventional substations generally install only the information protection substation.
S1-2: and for the intelligent substation provided with the secondary equipment online monitoring and intelligent diagnosis substation or the intelligent recorder, the scheduling main station acquires the remote signaling value of the relay protection equipment received by the plant end management unit system through the secondary equipment online monitoring main station.
S2: the typical switching value state monitoring and diagnosing system design of the relay protection equipment. And in the dispatching master station, a switching value state monitoring and intelligent diagnosis system is established according to typical remote signaling values (mainly comprising typical switching value input and equipment alarm information) of the relay protection equipment, which are acquired by the information-protecting master station and the secondary equipment online monitoring master station. The method comprises the following specific steps:
s3: and designing a switching value switching-in consistency checking function. And comparing the opening and closing amount of each relay protection device with the same source regularly, wherein the opening and closing amount only has a value of 1 and 0, giving an alarm when the opening and closing amount is inconsistent with the value of the 0, and giving an abnormal link diagnosis result through multi-source data comparison.
S4: and designing an on-line monitoring function of the switching value. And establishing a typical library of switching values, monitoring the switching value switching-in displacement state of the switching values in real time, and comprehensively analyzing and judging abnormal states such as the mistaken input of an important pressing plate, the mistaken input/output of a control word and the like according to the comparison result of the switching value switching-in state and the switching value switching-in value of the typical library.
S5: and designing an alarm comprehensive analysis function of the device. And judging the running state of the relay protection equipment by classifying the alarm signals of the protection equipment. The protection device alarm signals are classified as follows:
s5-1: device latch-up or device failure. The method mainly comprises device locking, board card configuration error, definite value out-of-range, definite value item change alarm, trip outlet alarm, definite value check error, sampling check error, device long-term locking alarm, protection CPU plug-in abnormity (including program, definite value, data storage error and the like), board card configuration error, protection DSP definite value error, protection DSP memory error, protection DSP sampling error (an abnormal sampling value is received by an intelligent station), protection DSP device type configuration error, protection DSP check error (the protection DSP judges that the protection DSP is abnormal), DSP definite value starting error, DSP device type starting configuration error, DSP starting check error (the protection DSP judges that the protection DSP is abnormal), and trip outlet loop abnormity. And (4) starting an alarm signal such as a DSP sampling error (an abnormal sampling value is received by the DSP started by the intelligent station).
S5-2: device exception or alarm. Mainly comprises fixed value check error, optical coupler power supply abnormality, steady state quantity differential long-term start, differential flow abnormality, differential loop CT disconnection, CT/PT disconnection, non-corresponding start alarm, failure joint trip current alarm and long-term start alarm, abnormal opening of failure starting, SV channel delay change (interval delay changes, interval delay time exceeds the range (3ms) for alarming), error of FPGA configuration, error of synchronous voltage sampling, abnormal synchronous voltage, error of setting of a reclosing mode (reclosing processing according to the shutdown), abnormal other protection actions (locking long jump function after alarming, even if a long jump command is received, no tripping occurs), CT/PT disconnection, long-term starting alarming (the device is in a starting state when being started for more than 50s or powered on all the time), long-term zero-sequence starting (zero-sequence is started for more than 10s all the time), and the like.
S5-3: and (4) locking differential protection. The method mainly comprises alarm signals of abnormal sampling channel delay (the delay of the sampling channels of a merging unit connected in the front and back twice is not consistent, the delay is zero, the delay exceeds 3000us), longitudinal differential protection, differential protection function pressing plates or control words are not thrown, current sampling abnormality of any branches of a bus-differential circuit (including bus-differential/segmented), CT disconnection of any branches of the bus-differential circuit (including bus-differential and segmented), first-channel abnormality (a channel has no effective frame, identification code error, serious error code, channel abnormality, differential exit, CT transformation ratio mismatch, differential self-loop abnormality, differential throw-exit inconsistency of two sides, synchronous abnormality, long-term differential flow), second-channel abnormality, SV overhaul inconsistency and the like.
S5-4: the virtual loop link is broken. The intelligent substation relay protection equipment SV chain breakage and GOOSE chain breakage are included.
S5-5: and (5) alarming the line protection channel. Including continuous frame loss, channel route change and other alarm signals.
S6: a typical switching value state monitoring and diagnosing system of relay protection equipment is implemented. The system displays and selects all equipment of the transformer substation according to the sequence of the bus, the switch, the circuit and the main transformer, and can check the consistency comparison result of the switching value input values of the two sets of protection of the equipment by selecting a certain piece of equipment, wherein the comparison result has two display modes, namely a legend and a list. In the legend, the collected values with the same name are compared, and the comparison results are consistent and are represented by blue; if the comparison result is inconsistent, marking the result with red; if the data is incomplete, a gray flag is used.
S7: in addition to protecting the switching value entry ratio, the designed system also supports statistical analysis of data. Including aligned consistent, inconsistent and no data items.
S8: through the steps of S1 to S7, a typical switching value and alarm signal state monitoring and diagnosing system implementation process of the relay protection device is established, and the design process is as shown in fig. 1. The premise for realizing the monitoring of the typical input amount and the state of the alarm signal is to accurately identify the input amount of the relay protection equipment and the name of the alarm signal.
At present, the problems that the opening names of the switching values of the protection device are not corresponding, the number of the opening configurations is not consistent and the like still exist, and although the manual matching of the opening items can be realized aiming at the above situations, the automatic matching still has certain difficulty.
As shown in fig. 2, a typical switching value channel matching method for a relay protection device includes the following steps S9 to S14:
s9: in view of the above possible problems of the entry quantity name, the present embodiment provides a channel name normalization processing method based on keywords. The normalization of typical switching value entry names mainly includes normalizing common and irregular entry names and processing expression forms of various entry entries into normalized entry entries.
S10: different expressions for protecting the same open entry are treated as normalized expression entries. The specific implementation method comprises the following steps:
s10-1: and (4) making a standardized entry dictionary library of relay protection devices such as line protection, transformer protection, bus protection, circuit breaker protection and the like.
S10-2: the dictionary base contains simplified names or similar words of unified entry names, and different entry names are named as standardized entry names.
S10-3: and replacing the characters which are easy to be confused according to the preprocessing rule. The names such as reclosing charging completion, reclosing permission and the like all indicate that reclosing is ready, can normally work and are uniformly named as reclosing charging completion.
And carrying out standardized processing on the switching value input entry names of different relay protection devices according to the dictionary library and then carrying out channel name matching work, so that accurate matching of the switching value input channel names among protection devices of different manufacturers and different versions can be realized.
S11: in the embodiment, switching value input name matching work realized by a matching party based on a dictionary library mainly adopts methods of maximum length including field matching, keyword matching and the like.
S12: and for each normalized communication item, a keyword matching method is adopted to realize initial matching of all similar channels in the remote signaling value data set.
S13: and realizing the optimal item matching work in the similar channel by a maximum length contained field matching method. The specific implementation method comprises the following steps:
s13-1: the maximum length-inclusive field matching method is characterized in that the longest character string between two input quantity channel name character strings is matched, and when the length of the character string which can be matched is greater than the length of a keyword, the maximum length matching result is approved.
S13-2: special markings may be made for switch amount on entries that fail to match.
S14: and matching again by adopting a fuzzy matching method for the switching value input items making special marks. And finishing automatic matching of all the opening entries.
The switch amount on entry supports manual matching.
The maximum length contained field matching method flow is shown in fig. 2.
After the typical switching value input item name matching work and the alarm signal grading processing work of the relay protection equipment are completed, the switching value state monitoring analysis and intelligent diagnosis can be carried out.
As shown in fig. 3, the implementation of typical switching value analysis and diagnosis of the relay protection device includes the following steps S15-S20:
s15: and checking the opening consistency of the switching value. The specific implementation method comprises the following steps:
s15-1: and (4) carrying out homologous comparison on the switching value input signals of the relay protection device with the double configuration at regular intervals, and giving an alarm when the switching value input signals are inconsistent.
S15-2: and (4) carrying out homologous comparison on switching value input signals between different relay protection devices at regular intervals, and giving an alarm when the switching value input signals are inconsistent. For example, the locking and reclosing signals of the line protection and the corresponding breaker protection are compared, whether the protection equipment in normal operation is closed, reopened and entered or not is checked, and a diagnosis result is given.
S16: typical switching value on-line monitoring is performed.
S16-1: and establishing a typical library of switching values.
S16-2: and monitoring the switching value switching-in displacement state in real time, and performing on-line comparison of the switching value switching-in state and the typical library switching value switching-in value.
S16-3: when the switching value is switched in and abnormal displacement occurs, consistency of the switching value is checked, and abnormal states such as mistaken input of an important pressing plate, mistaken input/output of a control word and the like are comprehensively analyzed and judged.
And (5) giving an abnormal link diagnosis result through multi-source data comparison.
S17: an online monitoring device alarm signal. And extracting the alarm signal with displacement in the alarm data set.
S18: and carrying out fuzzy recognition on the alarm signal of the displacement.
S19: and carrying out alarm grading on the fuzzy recognition result.
S20: and intelligently diagnosing the alarm signal of the device by combining the switching value input analysis result. For example, whether the 'overhaul inconsistency' alarm signal of adjacent relay protection equipment is correct is judged according to the 'overhaul pressing plate input' opening of the protection device. And judging whether the relay protection equipment is in a healthy running state or not according to the comprehensive analysis result.
The process utilizes the mode that the maximum length comprises field matching and keyword matching, common irregular opening names in the switching value of the secondary equipment are subjected to standardization processing, expression forms of various opening items are processed into the standardized opening items, then channel name matching work is carried out, accurate matching of the switching value opening channel names among different manufacturers and different versions of protection equipment can be realized, the switching value of the secondary equipment after matching is subjected to homologous comparison, alarm is given when the opening signal and the switching value are inconsistent, diagnosis of the switching value of the secondary equipment is realized, the inspection difficulty of the secondary equipment is reduced, and wrong inspection caused by human errors is avoided.
Example two:
the embodiment provides a system for implementing the method, which includes:
the dictionary base building module is used for building a dictionary base based on the switching value opening name by utilizing the remote signaling value of the secondary equipment;
the name specification module is used for specifying the opening names with different switching values as standard entry names by using simplified names and similar words of the switching value opening entry names in the dictionary library;
the name matching module is used for realizing the matching of the switching value input channel name by using the obtained standard entry name based on the dictionary library;
and the diagnosis module is used for carrying out homologous comparison on switching value opening signals among different secondary devices based on the matched switching value opening names, giving an alarm when the switching value opening signals are inconsistent, and realizing the switching value diagnosis.
In the remote secondary equipment switching value diagnosis method based on the scheduling master station, common irregular opening names in the switching values of the secondary equipment are subjected to standardization processing by using a mode that the maximum length comprises field matching and keyword matching, expression forms of various opening items are processed into the standardized opening items, then channel name matching work is performed, accurate matching of the switching value opening channel names among different manufacturers and different versions of protection equipment can be realized, the matched secondary equipment switching values are subjected to homologous comparison on opening signals, when the two protection items are inconsistent, an alarm is given to realize diagnosis of the switching values of the secondary equipment, the inspection difficulty of the secondary equipment is reduced, and mistaken inspection caused by human errors is avoided.
EXAMPLE III
The present embodiment provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the scheduling master station-based remote secondary device switching-on/off diagnostic method as set forth in the first embodiment above.
In the remote secondary equipment switching value diagnosis method based on the scheduling master station, common irregular opening names in the switching values of the secondary equipment are subjected to standardization processing by using a mode that the maximum length comprises field matching and keyword matching, expression forms of various opening items are processed into the standardized opening items, then channel name matching work is performed, accurate matching of the switching value opening channel names among different manufacturers and different versions of protection equipment can be realized, the matched secondary equipment switching values are subjected to homologous comparison on opening signals, when the two protection items are inconsistent, an alarm is given to realize diagnosis of the switching values of the secondary equipment, the inspection difficulty of the secondary equipment is reduced, and mistaken inspection caused by human errors is avoided.
Example four
The embodiment provides a computer device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps in the remote secondary device switching quantity diagnosis method based on the scheduling master station as set forth in the embodiment.
In the remote secondary equipment switching value diagnosis method based on the scheduling master station, common irregular opening names in the switching values of the secondary equipment are subjected to standardization processing by using a mode that the maximum length comprises field matching and keyword matching, expression forms of various opening items are processed into the standardized opening items, then channel name matching work is performed, accurate matching of the switching value opening channel names among different manufacturers and different versions of protection equipment can be realized, the matched secondary equipment switching values are subjected to homologous comparison on opening signals, when the two protection items are inconsistent, an alarm is given to realize diagnosis of the switching values of the secondary equipment, the inspection difficulty of the secondary equipment is reduced, and mistaken inspection caused by human errors is avoided.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory or a random access memory.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A remote secondary equipment switching value diagnosis method based on a scheduling master station is characterized by comprising the following steps: the method comprises the following steps:
constructing a dictionary library of open names based on switching values by using remote signaling values of secondary equipment;
standardizing the opening names with different switching values as standard entry names by using simplified names and near-meaning words of the switching value opening entry names in the dictionary library;
based on a dictionary library, the obtained standard entry names are used for realizing the matching of the switching value access channel names;
and based on the matched switching value opening name, checking the switching value opening consistency, and realizing the diagnosis of the switching value.
2. The remote secondary device switching value diagnosis method based on the scheduling master station of claim 1, wherein: the dictionary base contains simplified names and similar words of the entry names, and different entry names are uniformly named as normalized standard entry names.
3. The remote secondary device switching value diagnosis method based on the scheduling master station as claimed in claim 2, wherein: and carrying out normalized processing on the switching value input entry names of different secondary devices by using a dictionary library, and then carrying out channel name matching.
4. The remote secondary device switching value diagnosis method based on the scheduling master station of claim 1, wherein: in the process of realizing the matching of the switching value input channel name by using the obtained standard item name, the initial matching of all similar channels in the remote signaling value data set is realized by adopting a keyword matching method for each normalized communication item.
5. The remote secondary device switching value diagnosis method based on the scheduling master station of claim 1, wherein: in the process of realizing switching value input channel name matching by using the obtained standard entry name, when the length of a longer character string between two input value channel name character strings is greater than the length of a keyword, the longer character string is used as a matching result.
6. The remote secondary device switching value diagnosis method based on the scheduling master station of claim 1, wherein: in the process of realizing switching value input channel name matching by using the obtained standard entry names, the switching value input entries which cannot be matched are matched by adopting a fuzzy matching method until all input entries are matched.
7. The remote secondary device switching value diagnosis method based on the scheduling master station of claim 1, wherein: the switching value input consistency checking process specifically comprises the steps of carrying out homologous comparison on switching value input signals among different secondary devices, giving an alarm when the switching value input signals are inconsistent, and realizing switching value diagnosis.
8. Remote secondary equipment switching value diagnostic system based on dispatch main website, its characterized in that: the method comprises the following steps:
the dictionary base building module is used for building a dictionary base based on the switching value opening name by utilizing the remote signaling value of the secondary equipment;
the name specification module is used for specifying the opening names with different switching values as standard entry names by using simplified names and similar words of the switching value opening entry names in the dictionary library;
the name matching module is used for realizing the matching of the switching value input channel name by using the obtained standard entry name based on the dictionary library;
and the diagnosis module is used for carrying out homologous comparison on switching value opening signals among different secondary devices based on the matched switching value opening names, giving an alarm when the switching value opening signals are inconsistent, and realizing the switching value diagnosis.
9. A computer-readable storage medium having stored thereon a computer program, which when executed by a processor performs the steps of the method for diagnosing switching values of a remote secondary device based on a scheduling master station according to any one of claims 1 to 7.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the method for scheduling master station based remote secondary device switching amount diagnosis according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111235310.8A CN113972740A (en) | 2021-10-22 | 2021-10-22 | Remote secondary equipment switching value diagnosis method and system based on scheduling master station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111235310.8A CN113972740A (en) | 2021-10-22 | 2021-10-22 | Remote secondary equipment switching value diagnosis method and system based on scheduling master station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113972740A true CN113972740A (en) | 2022-01-25 |
Family
ID=79588112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111235310.8A Pending CN113972740A (en) | 2021-10-22 | 2021-10-22 | Remote secondary equipment switching value diagnosis method and system based on scheduling master station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113972740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296427A (en) * | 2021-12-13 | 2022-04-08 | 国网山东省电力公司电力科学研究院 | Remote secondary equipment analog quantity intelligent diagnosis method based on scheduling master station |
-
2021
- 2021-10-22 CN CN202111235310.8A patent/CN113972740A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296427A (en) * | 2021-12-13 | 2022-04-08 | 国网山东省电力公司电力科学研究院 | Remote secondary equipment analog quantity intelligent diagnosis method based on scheduling master station |
| CN114296427B (en) * | 2021-12-13 | 2024-03-26 | 国网山东省电力公司电力科学研究院 | Remote secondary equipment analog intelligent diagnosis method based on dispatching master station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109962443B (en) | SCD-based protection, overhaul and safety measure automatic generation system and method | |
| CN111143630B (en) | Intelligent substation overhaul safety measure execution state checking method and device | |
| CN108053041B (en) | Secondary system abnormity identification and anti-misoperation system and method under multi-association scene of transformer substation | |
| CN111563658A (en) | Visual online checking method and device for pressing plate in secondary safety measure | |
| CN110349048B (en) | Substation multidimensional data operation interactive control platform and fault handling method | |
| CN103996099A (en) | Method for conducting intelligent evaluation on student operation in training system | |
| CN109245300B (en) | Automatic checking method for 500kV intelligent substation pressure plate | |
| CN110674282A (en) | Expert knowledge rule base-based one-key sequential control operation order intelligent simulation method | |
| CN113537523A (en) | Substation equipment state maintenance and decision-making assisting method | |
| CN113972740A (en) | Remote secondary equipment switching value diagnosis method and system based on scheduling master station | |
| CN110350660B (en) | Online monitoring method and system for relay protection function pressing plate | |
| CN112906389B (en) | Fault trip discrimination method based on multi-dimensional data analysis | |
| CN107104414A (en) | A kind of relay protection maintenance aid decision-making method based on online data | |
| CN108170975B (en) | SCD change visual inspection method and system based on model | |
| CN113449044A (en) | Intelligent station equipment maintenance safety measure automatic generation method and device based on learning inference machine | |
| CN111626542B (en) | Big data-based detection method for generator excitation system | |
| CN109767108B (en) | Accurate analysis method for line state of power dispatching system | |
| CN110750500A (en) | Method and system for checking CCD (Charge coupled device) file and SCD (substation configuration description) file of intelligent substation | |
| CN114296427B (en) | Remote secondary equipment analog intelligent diagnosis method based on dispatching master station | |
| CN115642701A (en) | State identification method of relay protection device and related device | |
| CN109255445A (en) | A kind of intelligent periodical inspection method of the protective device based on multi-source data analysis | |
| CN107871030B (en) | Substation secondary maintenance safety measure generation method based on SCD file object model | |
| CN113097981B (en) | Method for judging missing of monitoring alarm signal of transformer substation | |
| CN114398947A (en) | Expert system-based power grid fault automatic classification method and system | |
| CN107872022B (en) | Transformer substation secondary maintenance safety measure matching method for optical fiber communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |