CN107749667B - Real-time monitoring method for information and state of intelligent substation protection pressing plate - Google Patents
Real-time monitoring method for information and state of intelligent substation protection pressing plate Download PDFInfo
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- CN107749667B CN107749667B CN201711050294.9A CN201711050294A CN107749667B CN 107749667 B CN107749667 B CN 107749667B CN 201711050294 A CN201711050294 A CN 201711050294A CN 107749667 B CN107749667 B CN 107749667B
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- 238000003825 pressing Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 238000012423 maintenance Methods 0.000 claims abstract description 26
- 230000004927 fusion Effects 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000012163 sequencing technique Methods 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000004422 calculation algorithm Methods 0.000 claims description 3
- 238000007635 classification algorithm Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 description 4
- 238000007726 management method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- 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
- Y04S10/16—Electric power substations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A real-time monitoring method for information and state of a protection pressing plate of an intelligent substation relates to the technical field of equipment monitoring and maintenance. The invention aims to solve the problem that the existing pressing plate is not intuitive in state acquisition, checking and checking, so that pressing plate errors cannot be found in time. Firstly, collecting the pressing plate information in a transformer substation, and sending the collected pressing plate information to a data processing unit through a communication network; then, classifying and sequencing the fault types of the relay protection by using a sequence mode, and extracting a fusion characteristic value of each fault type; and finally, comparing the pressing plate information with the fusion characteristic value, wherein if the pressing plate information is the same as the fusion characteristic value, the transformer substation is in a fault state, and if the pressing plate information is different from the fusion characteristic value, the transformer substation is in a normal state. And when the transformer substation is in a fault state, determining a fault influence range through the association rule. The method of the invention can be applied at the station end, can realize remote monitoring and meets different requirements.
Description
Technical Field
The invention belongs to the technical field of equipment monitoring and maintenance.
Background
With the expansion and development of the power grid scale, the informatization and intelligentization levels of equipment operation and maintenance work are greatly improved, but the method also faces the challenges of rapid growth of running equipment, increasingly complex alternating current and direct current mixing and limited personnel number growth. The work such as the operation of clamp plate switching, the check of the regular position check of clamp plate all need to be examined the personnel through the fortune and can carry out work after arriving the transformer substation scene, and the degree of dependence to personnel is high, and the current technical means can not satisfy the real-time, intelligent demand of on-the-spot operation management. The concrete expression is as follows:
the reliability is poor depending on manual operation and maintenance. For a long time, the monitoring work of the state of the relay protection pressing plate is mainly realized by strengthening on-site operation and maintenance management in the actual work of power transformation operation and maintenance personnel, and equipment accidents caused by the wrong switching of the protection pressing plate are prevented. For example, a state label and a protection name label are attached to the lower portion of the protection pressing plate, the protection names of the protection pressing plate and a constant value notice sheet in each transformer substation are checked and checked to be equal to the core, the number of times of misoperation can be reduced to a certain extent through the measures, however, the anti-misoperation effect of the protection pressing plate has certain limitation, due to the characteristics of high density of the protection pressing plate in layout, integration and combination in function and the like, inspection omission and operation errors are prone to occurring, and once the operation state error of the pressing plate is not found in time, protection misoperation or refusal can be caused. The statistical data of protection supervision in recent years show that the percentage of accidents caused by the manual operation of the protection pressing plate by mistake or leakage is still high, and the caused loss is more serious.
Disclosure of Invention
The invention provides a real-time monitoring method for protecting the information and the state of a pressing plate of an intelligent substation, aiming at solving the problem that the state of the existing pressing plate is not directly acquired, checked and checked, so that the pressing plate error cannot be timely found.
A real-time monitoring method for information and state of a protection pressing plate of an intelligent substation comprises the following steps:
data acquisition and transmission:
collecting information of a pressing plate in a transformer substation;
the platen information includes: protecting the operation data of the equipment, the operation data of the power grid, the protection configuration condition and the position information of the hard pressure plate;
the operation data of the protection equipment comprises real-time data and historical data, and the power grid operation data comprises the real-time data and the historical data;
and (3) data processing:
classifying and sequencing the fault types of the relay protection by using a sequence mode, extracting a fusion characteristic value of each fault type,
and comparing the pressing plate information with the fusion characteristic value, wherein if the pressing plate information is the same as the fusion characteristic value, the transformer substation is in a fault state, and if the pressing plate information is different from the fusion characteristic value, the transformer substation is in a normal state.
And when the transformer substation is in a fault state, determining a fault influence range through the association rule.
The specific method for extracting the fusion characteristic value of each fault type comprises the following steps:
first, a feature value of each fault type is extracted,
then, mining sub-item information of each characteristic value by adopting a clustering algorithm and a classification algorithm,
and finally, fusing the characteristic values of the same description and the same concept according to the sub-item information to obtain a fused characteristic value.
The specific method for collecting the pressing plate information in the transformer substation comprises the following steps:
an operation and maintenance substation is configured in the intelligent substation and serves as a data acquisition terminal at a station end, an in-station data collection center and an in-station visual operation and maintenance workstation,
the operation data, the power grid operation data and the protection configuration condition of the protection equipment of the intelligent substation are collected by using the integrated monitoring background of the intelligent substation and are sent to the operation and maintenance substation through the trans-regional safety isolation device,
the state collector is used for collecting the position information of the protective hard pressing plate, the position information of the protective hard pressing plate is sent to the operation and maintenance substation through the intelligent anti-misoperation device,
the operation and maintenance substation establishes a data communication network, and city companies and operation work area workstations can browse operation data of protection equipment of the intelligent substation, power grid operation data, protection configuration conditions and position information of a protection hard pressing plate through the data communication network,
the city company and the operation work station can also acquire the operation data of the protection equipment of the intelligent substation, the power grid operation data, the protection configuration condition and the position information of the protection hard pressing plate through the data communication network, and send the operation data, the power grid operation data, the protection configuration condition and the position information of the protection hard pressing plate to the comprehensive application server.
The specific method for acquiring the position information of the protective hard pressing plate by using the state acquisition device comprises the following steps:
the input or exit state of the protection hard pressing plate is acquired by the guide rail type sensor, and the input or exit state of the protection hard pressing plate is sent to the state acquisition unit by the guide rail type sensor in a single bus mode to serve as position information of the protection hard pressing plate.
According to the invention, by real-time acquisition and automatic comparison of the pressing plate state, operation and maintenance personnel not only realize real-time mastering of the pressing plate state, but also convert the pressing plate comparison from time-consuming manual recheck into automatic inspection, the inspection time is reduced from hours to minutes, and the working efficiency is greatly improved; meanwhile, the completeness and omission of the inspection work are ensured; effectively reducing equipment outage and power grid accidents caused by misoperation or incorrect pressing plate state. The method of the invention can be applied at the station end, can realize remote monitoring and meets different requirements.
Drawings
Fig. 1 is a schematic diagram of a data acquisition process of an intelligent substation.
Detailed Description
The first embodiment is as follows: the method for monitoring the information and the state of the protection pressing plate of the intelligent substation in real time comprises the following steps:
data acquisition and transmission: collecting the pressing plate information in the transformer substation, and sending the collected pressing plate information to a data processing unit through a communication network; the pressing plate information comprises soft pressing plate information and position information of a protective hard pressing plate, and the soft pressing plate information comprises operation data of protective equipment, power grid operation data and protective configuration conditions (information such as fixed position and soft pressing plate); the operation data of the protection equipment comprises real-time data and historical data, and the power grid operation data comprises the real-time data and the historical data;
and (3) data processing: the data processing unit classifies and sorts the relay protection fault types by using a sequence mode, then extracts the fusion characteristic value of the fault types according to the dependency relationship between the primary equipment and the secondary equipment, compares the collected pressure plate information (including pressure plate switching, operation mode requirements, communication states, position information and the like) subjected to data identification and data summarization with the fusion characteristic value, if the pressure plate information is the same as the fusion characteristic value, the transformer substation is in a fault state, and if the pressure plate information is different from the fusion characteristic value, the transformer substation is in a normal state.
The data acquisition and transmission step can also realize the independent input, and realize the input of the operation regulation of the transformer substation, the protection pressing plate dictionary, the typical configuration of the pressing plate and the knowledge service information. Different functions can be customized according to the input information.
The second embodiment is as follows: the embodiment further describes a method for monitoring information and states of a protection pressing plate of an intelligent substation in real time according to a specific embodiment, in the embodiment, after the substation is judged to be in a fault state, a fault influence range is determined according to an association rule of a protection logic relationship.
The third concrete implementation mode: in the embodiment, because the protection types and the failure reasons are more, in order to ensure the working efficiency of the system, a clustering algorithm and a classification algorithm are adopted to mine sub-item information of characteristic values, the characteristic values of failure information are integrally depicted, the characteristic values of the same description and the same concept are fused, particularly the fusion between polysemous words, on the premise of comprehensively extracting the characteristic values, the same information is merged as much as possible, the fused characteristic values are obtained, and the data comparison and calculation efficiency is ensured.
The fourth concrete implementation mode: referring to fig. 1, this embodiment is further described with reference to a method for monitoring information and status of a protection pressing plate of an intelligent substation in real time in the first embodiment, and in this embodiment, a specific method for acquiring information of a pressing plate in a substation is as follows:
an operation and maintenance substation is configured in the intelligent substation and serves as a data acquisition terminal at a station end, an in-station data collection center and an in-station visual operation and maintenance workstation,
the integrated monitoring background of the intelligent substation is used for collecting the operation data of the protection equipment, the operation data of the power grid and the protection configuration condition of the intelligent substation, and then the operation data, the power grid operation data and the protection configuration condition are sent to the operation and maintenance substation through the trans-regional safety isolation device,
the state collector is used for collecting the position information of the protective hard pressing plate, the position information of the protective hard pressing plate is sent to the operation and maintenance substation through the intelligent anti-misoperation device,
the operation and maintenance substation establishes a data communication network, the prefecture company and the operation work area workstation can browse the protection equipment operation data, the power grid operation data, the protection configuration condition and the position information of the protection hard pressing plate of the intelligent substation through the data communication network, and the prefecture company and the operation work area workstation can acquire the protection equipment operation data, the power grid operation data, the protection configuration condition and the position information of the protection hard pressing plate of the intelligent substation through the data communication network and send the protection equipment operation data, the power grid operation data, the protection configuration condition and the position information of the protection hard pressing plate to the comprehensive application server.
The embodiment realizes the acquisition of the state data based on the newly-built production control cloud communication data private network of the work area and the transformer substation. The operation and maintenance substation is configured in the transformer substation as a data acquisition terminal of a substation end and an in-substation data collection center, and can be used as a visual operation and maintenance workstation in the transformer substation, a scheduling data network is not relied on, and the independence of the system can be ensured by using a newly-built special data communication network, so that the operation and maintenance are convenient.
The intelligent anti-misoperation device is used for centralized management of secondary equipment of the intelligent substation, is used as station control layer equipment of the intelligent substation, is respectively accessed to a process layer network through Ethernet to acquire the state of the secondary equipment and the station control layer network to send the state information of the secondary equipment to a big data storage and processing platform through a telecontrol communication device, and is applied on the next step.
And a data communication network is established on the operation and maintenance substation for local companies and operation work area workstations to browse, so that the remote checking and checking of the pressing plate are realized. Meanwhile, the pressure plate state data is transmitted to a comprehensive application server of a city company so as to realize advanced application functions such as comprehensive evaluation, diagnosis and the like.
The fifth concrete implementation mode: the present embodiment is further described with reference to the fourth specific embodiment, in which the real-time monitoring method for information and status of the protection pressing plate of the intelligent substation,
the specific method for acquiring the position information of the protective hard pressing plate by using the state acquisition device comprises the following steps:
the input or exit state of the protection hard pressing plate is acquired by the guide rail type sensor, and the input or exit state of the protection hard pressing plate is sent to the state acquisition unit by the guide rail type sensor in a single bus mode to serve as position information of the protection hard pressing plate.
In this embodiment, the group of guide rail type sensors includes a guide rail module and a plurality of sensing accessories, the plurality of sensing accessories are respectively clamped on different hard pressing plate handles on the same row, and the guide rail module is fixed above or below the hard pressing plates on the same row in a sticking manner.
By adopting a non-electric infrared correlation sensing principle, when any hard pressing plate is in an 'input' or 'exit' state, the guide rail module can receive infrared correlation signals sent by sensing accessories on different hard pressing plates. The guide rail type sensors can detect the state of a row of equipment, and the guide rail module can support the detection of 12 hard press plates at most in a row and is not influenced by the quantity and the distance; the sensor modules arranged in the guide rail module can be configured and slide according to the number and the positions of the devices. The guide rail type sensor sensing accessories adopt different sensing accessories according to the type and the structural form of the equipment, and the detection of the state of the equipment is realized.
The state collector is used for an intelligent substation, realizes centralized collection of the state of an overhead switch and a pressing plate of the intelligent cabinet, communicates with the guide rail type sensor in a single-bus mode, comprises two paths of optical fiber interfaces, is connected to a process layer switch, and adopts a GOOSE communication protocol to upload state information.
Claims (4)
1. A real-time monitoring method for information and states of a protection pressing plate of an intelligent substation is characterized by comprising the following steps:
data acquisition and transmission:
collecting information of a pressing plate in a transformer substation;
the platen information includes: protecting the operation data of the equipment, the operation data of the power grid, the protection configuration condition and the position information of the hard pressure plate; the operation data of the protection equipment comprises real-time data and historical data, and the power grid operation data comprises the real-time data and the historical data;
and (3) data processing:
classifying and sequencing the fault types of the relay protection by using a sequence mode, extracting a fusion characteristic value of each fault type,
comparing the pressing plate information with the fusion characteristic value, wherein if the pressing plate information is the same as the fusion characteristic value, the transformer substation is in a fault state, and if the pressing plate information is different from the fusion characteristic value, the transformer substation is in a normal state;
the specific method for extracting the fusion characteristic value of each fault type comprises the following steps:
first, a feature value of each fault type is extracted,
then, mining sub-item information of each characteristic value by adopting a clustering algorithm and a classification algorithm,
and finally, fusing the characteristic values of the same description and the same concept according to the sub-item information to obtain a fused characteristic value.
2. The method for monitoring the information and the state of the intelligent substation protection pressure plate in real time according to claim 1, wherein when the substation is in a fault state, the fault influence range is determined through association rules.
3. The real-time monitoring method for the information and the state of the intelligent substation protection pressure plate according to claim 1, wherein the specific method for collecting the pressure plate information in the substation is as follows:
an operation and maintenance substation is configured in the intelligent substation and serves as a data acquisition terminal at a station end, an in-station data collection center and an in-station visual operation and maintenance workstation,
the operation data, the power grid operation data and the protection configuration condition of the protection equipment of the intelligent substation are collected by using the integrated monitoring background of the intelligent substation and are sent to the operation and maintenance substation through the trans-regional safety isolation device,
the state collector is used for collecting the position information of the protective hard pressing plate, the position information of the protective hard pressing plate is sent to the operation and maintenance substation through the intelligent anti-misoperation device,
the operation and maintenance substation establishes a data communication network, the prefecture company and the operation work area workstation can browse the operation data, the power grid operation data, the protection configuration condition and the position information of the protection hard pressing plate of the protection equipment of the intelligent substation through the data communication network, and the prefecture company and the operation work area workstation can acquire the operation data, the power grid operation data, the protection configuration condition and the position information of the protection hard pressing plate of the protection equipment of the intelligent substation through the data communication network and send the operation data, the power grid operation data, the protection configuration condition and the position information of the protection hard pressing plate to the comprehensive application server.
4. The real-time monitoring method for the information and the state of the protection pressing plate of the intelligent substation according to claim 3, wherein the specific method for acquiring the position information of the protection hard pressing plate by using the state collector comprises the following steps:
the input or exit state of the protection hard pressing plate is acquired by the guide rail type sensor, and the input or exit state of the protection hard pressing plate is sent to the state acquisition unit by the guide rail type sensor in a single bus mode to serve as position information of the protection hard pressing plate.
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| CN201711050294.9A CN107749667B (en) | 2017-10-31 | 2017-10-31 | Real-time monitoring method for information and state of intelligent substation protection pressing plate |
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| CN201711050294.9A CN107749667B (en) | 2017-10-31 | 2017-10-31 | Real-time monitoring method for information and state of intelligent substation protection pressing plate |
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| CN107749667B true CN107749667B (en) | 2019-12-24 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108596445A (en) * | 2018-04-03 | 2018-09-28 | 国网江苏省电力有限公司检修分公司 | Intelligent substation relay-protection pressing plate status assessing system |
| CN109450100A (en) * | 2018-12-21 | 2019-03-08 | 长园深瑞继保自动化有限公司 | The not corresponding method of one secondary device of monitoring intelligent substation |
| CN109412274A (en) * | 2018-12-26 | 2019-03-01 | 国网辽宁省电力有限公司盘锦供电公司 | Protect pressing plate realtime on-line monitoring method |
| CN109450103A (en) * | 2019-01-04 | 2019-03-08 | 国家电网有限公司 | Condition detection method, device and the intelligent terminal of pressing plate |
| CN110048508B (en) * | 2019-04-10 | 2020-12-01 | 国网浙江省电力有限公司检修分公司 | Remote monitoring system for transformer substation pressure plate state |
| CN112085043B (en) * | 2019-06-14 | 2023-07-25 | 中国科学院沈阳自动化研究所 | Intelligent monitoring method and system for network security of transformer substation |
| CN110492609A (en) * | 2019-08-07 | 2019-11-22 | 国网河北省电力有限公司 | A kind of transforming plant protecting hard pressing plate remote monitoring system |
| CN110675397B (en) * | 2019-10-14 | 2023-03-28 | 国网山东省电力公司泰安供电公司 | Transformer substation protection pressing plate state checking method |
| CN111884347B (en) * | 2020-08-28 | 2021-07-13 | 国网山东省电力公司郯城县供电公司 | Power data centralized control system for multi-source power information fusion |
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