CN104578408A - State monitoring and tendency estimation device for secondary equipment of intelligent substation - Google Patents
State monitoring and tendency estimation device for secondary equipment of intelligent substation Download PDFInfo
- Publication number
- CN104578408A CN104578408A CN201410783621.1A CN201410783621A CN104578408A CN 104578408 A CN104578408 A CN 104578408A CN 201410783621 A CN201410783621 A CN 201410783621A CN 104578408 A CN104578408 A CN 104578408A
- Authority
- CN
- China
- Prior art keywords
- unit
- data acquisition
- intelligent
- message
- circuit
- 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
Classifications
-
- 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
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a state monitoring and tendency estimation device for secondary equipment of an intelligent substation. The state monitoring and tendency estimation device comprises a data acquisition access unit, a data comparison analysis unit and a comprehensive estimation output unit, and is characterized in that the data acquisition access unit receives operation state data of all sets of secondary equipment through various quick report mechanisms; the data comparison analysis unit receives various report data transmitted by the data acquisition access unit, decodes the report data, carries out associated comparison analysis according to a preset substation configuration file and outputs an analysis result; the compressive estimation output unit carries out intelligent estimation according to the analysis result of the data comparison analysis unit and provides estimation results of a secondary system and the secondary equipment. According to the state monitoring and tendency estimation device, normal state monitoring and counting on the secondary equipment of the intelligent substation can be realized, and a large quantity of abnormal signals can be judged, so that quick fault diagnosis can be realized, an effective instruction can be provided for shipment inspection staff, and the convenience in maintenance of the intelligent substation is improved.
Description
Technical field
The present invention relates to and relate to intelligent substation of electric power system data monitoring and assessment early warning technology field.Be specifically related to a kind of secondary equipment of intelligent converting station status monitoring and trend evaluation device.
Background technology
At present, power industry greatly develop and the application of new technology impels intelligent grid to become the developing direction in electric power system future, intelligent substation is the key composition of intelligent grid, therefore, builds the vital task that intelligent substation becomes Power System Intelligentization development.Intelligent substation be with DL/T 860 standard for platform, realize the Novel transformer substation of information sharing in transformer station between intelligent primary equipment and networking secondary device and interoperability.
Compared with conventional substation, intelligent substation has larger difference on system implementations.Intelligent substation carries out designing and planning with reference to the three-decker of DL/T 860.Physically, intelligent substation is made up of three levels: process layer, wall and station level.Device SV between process layer and wall and wall and GOOSE message exchange the information such as sampled data, on off state, control command; The information such as event, on off state, control command are exchanged by MMS and GOOSE message between wall and station level device.
Current each intelligent substation mainly relies on network message record analysis device (hereinafter referred to as net separating device) collection, record and analytic process layer and station level message, reaches the object of monitoring substation network operation state.Net separating device mainly distinguishes the running status of single association according to APPID keyword.But in intelligent substation actual moving process, electrical secondary system breaks down, it is very consuming time for only relying on the single association of analysis to carry out fault point, need to analyse and compare from the correlation of multiple association the data be associated, assessed the running status of various kinds of equipment and system in transformer station by horizontal and vertical integration.Therefore, how the effective running status to transformer substation system and equipment is monitored and is assessed, and has become the problem demanding prompt solution of intelligent substation and safe and stable operation.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of secondary equipment of intelligent converting station status monitoring and trend evaluation device, to realize secondary device on-line monitoring and condition intelligent assessment in intelligent station.
In order to solve the problem, the technical solution used in the present invention is:
A kind of secondary equipment of intelligent converting station status monitoring and trend evaluation device, comprise data acquisition access unit, comparing analytic unit and comprehensive assessment output unit, it is characterized in that: described data acquisition access unit receives the running state data of each secondary device by multiple rapid message mechanism, the various message datas that described comparing analytic unit receives the transmission of data acquisition access unit are decoded, and carry out association compare of analysis according to the transformer substation configuration file pre-set, export analysis result, described comprehensive assessment output unit carries out intelligent evaluation according to the analysis result of comparing analytic unit, provide the assessment result of electrical secondary system and secondary device.
Aforesaid a kind of secondary equipment of intelligent converting station status monitoring and trend evaluation device, it is characterized in that: described data acquisition access unit comprise optical Ethernet place in circuit, Ethernet access circuit and pair time place in circuit, described optical Ethernet place in circuit is for receiving the GOOSE switching value message that the sampling value message of SV transmission over networks, GOOSE network are transmitted, described Ethernet access circuit for receiving MMS message and the PTP message of MMS transmission over networks, signal when message or SNTP couple when place in circuit is for receiving 1588 pairs of Internet Transmission when described pair.
Aforesaid a kind of secondary equipment of intelligent converting station status monitoring and trend evaluation device, it is characterized in that: described comparing analytic unit comprises bus unit, CPU processing unit, memory cell, bus unit is used for each layer message of the reception of data acquisition access unit to transfer to CPU processing unit according to time sequencing, CPU processing unit for the batch data that bus unit transmits being carried out decode, marking, alarm and the Key state degree of depth compare of analysis by each IED device; Memory cell is used for the assessment result of CPU processing unit to store.
Aforesaid a kind of secondary equipment of intelligent converting station status monitoring and trend evaluation device, is characterized in that: described secondary device comprises protective relaying device, merges single cloud, intelligent terminal, timing device, prior-warning device, communication loop and station level device.
Aforesaid a kind of secondary equipment of intelligent converting station status monitoring and trend evaluation device, it is characterized in that: the SV signal of described merge cells and the GOOSE signal of intelligent terminal are linked in the optical Ethernet place in circuit of data acquisition unit, the MMS signal of described station level device is linked in the Ethernet access circuit of data acquisition unit, described timing device by pair time signal be linked into data acquisition unit pair time place in circuit in.
Aforesaid a kind of secondary equipment of intelligent converting station status monitoring and trend evaluation device, is characterized in that: automatically generate assessment bulletin after carrying out evaluation to secondary device running status and development trend.
The beneficial effect that the present invention reaches: under intelligent substation nominal situation, apparatus for evaluating of the present invention monitors each layer IED device, and Real-time Collection resolves SV, GOOSE ﹑ MMS received, the messages such as SNTP, extract key state parameter, carry out association comparison, assessment secondary device and system.The present invention configures this apparatus for evaluating in intelligent station, normal condition can not only be realized and monitor statistics, for repair based on condition of component provides background data and maintenance foundation, can also differentiate the abnormality of a large amount of secondary devices run in Intelligent transformer station, realize rapid failure diagnosis, for fortune inspection, personnel provide effective guidance, improve intelligent station and safeguard convenience.
Accompanying drawing explanation
Fig. 1 is secondary equipment of intelligent converting station status monitoring of the present invention and trend evaluation device hardware frame figure.
Fig. 2 is secondary equipment of intelligent converting station status monitoring of the present invention and trend evaluation device software frame diagram.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of secondary equipment of intelligent converting station status monitoring and trend evaluation device, comprise data acquisition access unit, comparing analytic unit and comprehensive assessment output unit, it is characterized in that: described data acquisition access unit receives SV net respectively, GOOSE net, the image data that MMS send on the net, the various message datas that comparing analytic unit receives the transmission of data acquisition access unit are decoded, and carry out association compare of analysis according to the transformer substation configuration file pre-set, export analysis result, described comprehensive assessment output unit carries out intelligent evaluation according to the analysis result of comparing analytic unit, provide the assessment result of electrical secondary system and secondary device.
Data acquisition access unit comprise optical Ethernet place in circuit, Ethernet access circuit and pair time place in circuit, described optical Ethernet place in circuit for receiving the GOOSE switching value message that the sampling value message of SV transmission over networks, GOOSE network are transmitted, described Ethernet access circuit for receiving MMS message and the PTP message of MMS transmission over networks, signal when message or SNTP couple when place in circuit is used for 1588 pairs of transmission Network Based when described pair.
Comparing analytic unit comprises bus unit, CPU processing unit, memory cell, bus unit is used for each layer message of the reception of data acquisition access unit to transfer to CPU processing unit according to time sequencing, CPU processing unit for the batch data that bus unit transmits being carried out decode, marking, alarm and the Key state degree of depth compare of analysis by each IED device; Memory cell is used for the assessment result of CPU processing unit to store, and described memory cell can adopt hard disk.
Comprehensive assessment output unit comprises uplink communication interface, switching value output circuit and LED output circuit, according to the Key state of the secondary device emphasis assessment chosen, realize plant running Stateful Inspection, and carry out tendency assessment on the basis of data with existing.
Described secondary device comprises protective relaying device, merges single cloud, intelligent terminal, timing device, prior-warning device, communication loop and station level device.The SV signal of described merge cells and the GOOSE signal of intelligent terminal are linked in the optical Ethernet place in circuit of data acquisition unit, the MMS signal of described station level device is linked in the Ethernet access circuit of data acquisition unit, described timing device by pair time signal be linked into data acquisition unit pair time place in circuit in.Apparatus for evaluating of the present invention needs from SCD file, correctly parse the secondary device status monitoring configuration information relevant to trend evaluation function and empty terminal link information before starting monitoring and evaluation function.
1, protective relaying device assessment:
The running state monitoring of protective relaying device comprises 4 aspects.
(1), sampled value precision: the key state parameter of sampled value accuracy evaluation is branch road sampled value information during each protective device MMS reports.The sample values of protective device Real-time Collection merge cells, send sampled value information to client (integrated monitoring system or prudential sub-station) on the net via MMS.Apparatus for evaluating pre-configured sampled value error precision alarm threshold, when Real-Time Monitoring go out the two cover protective devices sampled value difference gathered in same wall be greater than default error precision threshold value time, prompting protective device sampling precision is abnormal.
(2), sampled value is abnormal: the key state parameter of sampled value anomaly assessment is PT/CT broken string warning information during each protective device MMS reports, the invalid warning information of sampled value, merge cells SV message quality significance bit etc.For the alarm of PT/CT broken string, protective device breaks warning information to client (integrated monitoring system or prudential sub-station) via MMS network sending PT/CT.Apparatus for evaluating real-time monitors relevant information, and carries out logical calculated to the sampled value in MMS report, the correctness of the PT/CT broken string passage that final location is concrete or broken string alarm.
(3), switching value monitors: the Key state of switching value assessment is GOOSE and the MMS message of protective device and intelligent terminal.Intake monitors it is monitor the channel position information of specifying GOOSE, as circuit breaker, disconnecting link positional information.The amount of outputing supervision is that in MMS message GOOSE passage displacement information and the protective device of apparatus for evaluating reception sent, protection act and outlet information carry out verification comparison.
(4), switching value is abnormal: the key state parameter of switching value anomaly assessment comprises each protective device MMS and reports breaker in middle amount abnormality alarming information and corresponding GOOSE Abnormal Deformation.When protective device sends MMS message to client (integrated monitoring system or prudential sub-station); point out intake abnormal in message; GOOSE link down; the information such as the inconsistent alarm of GOOSE inspecting state; then the intelligent terminal respective channel state value that associates with MMS message of apparatus for evaluating analysis, judges concrete intake abnormal passage.
2, merge cells assessment
Merge cells state estimation comprises mutual school between the assessment of coupling apparatus self information and distinct device.Self appreciation information comprise merge cells data validity, sampled value precision, pair time state etc.; Information between distinct device is then mainly the mutual school of the two cover of sampled value.
3, intelligent terminal assessment
Intelligent terminal assessment mainly verifies that GOOSE chain rupture and GOOSE export action.The GOOSE state information that device receives associated with the GOOSE information in the MMS message sent by protective device, whether the GOOSE state of both checkings is consistent.Outlet action then by recording the variation tendency that it performs the time of GOOSE order, realizes its assessment.
4, prior-warning device assessment:
This apparatus for evaluating, except realizing except the Real-Time Monitoring alarm of secondary device running status, also has the assessment warning function to secondary equipment health state, operation trend.Adopt the information such as the variation tendency of alarm number of times statistics in a period of time, sampled value and monitor value as the key parameters of Forewarn evaluation, energy efficient diagnosis secondary device whether normal.Such as assess certain device alarm of IED equipment.Device adds up the various alarm number of times of IED equipment in a period of time, and Integrated comparative judges the device alarm of each IED equipment.As shown in Figure 2, apparatus for evaluating of the present invention passes through software simulating following functions,
(1), by the SV/GOOSE message between process layer combining unit, intelligent terminal, monitor the fault of each IED device, alarm, real time information (voltage, electric current, temperature etc.), monitor the flow of SV/GOOSE network, network storm, node are uprushed, communication overtime, communication disruption etc.;
(2), by station level gather the MMS message of protection supervisory equipment, verify the corresponding service model of each equipment and signal send whether normal;
(3), by the cycle service data obtained is analyzed and record, analyze according to the variation tendency of set algorithm to different parameter, and provide the corresponding tendency evaluation grade of device.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (6)
1. a secondary equipment of intelligent converting station status monitoring and trend evaluation device, comprise data acquisition access unit, comparing analytic unit and comprehensive assessment output unit, it is characterized in that: described data acquisition access unit receives the running state data of each secondary device by multiple rapid message mechanism, the various message datas that described comparing analytic unit receives the transmission of data acquisition access unit are decoded, and carry out association compare of analysis according to the transformer substation configuration file pre-set, export analysis result, described comprehensive assessment output unit carries out intelligent evaluation according to the analysis result of comparing analytic unit, provide the assessment result of electrical secondary system and secondary device.
2. a kind of secondary equipment of intelligent converting station status monitoring according to claim 1 and trend evaluation device, it is characterized in that: described data acquisition access unit comprises optical Ethernet place in circuit, Ethernet access circuit and pair time place in circuit, described optical Ethernet place in circuit is for receiving the sampling value message of SV transmission over networks, the GOOSE switching value message that GOOSE network is transmitted, described Ethernet access circuit is for receiving MMS message and the PTP message of MMS transmission over networks, signal when message or SNTP couple when place in circuit is for receiving 1588 pairs of Internet Transmission when described pair.
3. a kind of secondary equipment of intelligent converting station status monitoring according to claim 2 and trend evaluation device, it is characterized in that: described comparing analytic unit comprises bus unit, CPU processing unit, memory cell, bus unit is used for each layer message of the reception of data acquisition access unit to transfer to CPU processing unit according to time sequencing, CPU processing unit for the batch data that bus unit transmits being carried out decode, marking, alarm and the Key state degree of depth compare of analysis by each IED device; Memory cell is used for the assessment result of CPU processing unit to store.
4. a kind of secondary equipment of intelligent converting station status monitoring according to claim 3 and trend evaluation device, is characterized in that: described secondary device comprises protective relaying device, merges single cloud, intelligent terminal, timing device, prior-warning device, communication loop and station level device.
5. a kind of secondary equipment of intelligent converting station status monitoring according to claim 4 and trend evaluation device, it is characterized in that: the SV signal of described merge cells and the GOOSE signal of intelligent terminal are linked in the optical Ethernet place in circuit of data acquisition unit, the MMS signal of described station level device is linked in the Ethernet access circuit of data acquisition unit, described timing device by pair time signal be linked into data acquisition unit pair time place in circuit in.
6. a kind of secondary equipment of intelligent converting station status monitoring according to claim 5 and trend evaluation device, is characterized in that: automatically generate assessment bulletin after carrying out evaluation to secondary device running status and development trend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410783621.1A CN104578408A (en) | 2014-12-16 | 2014-12-16 | State monitoring and tendency estimation device for secondary equipment of intelligent substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410783621.1A CN104578408A (en) | 2014-12-16 | 2014-12-16 | State monitoring and tendency estimation device for secondary equipment of intelligent substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104578408A true CN104578408A (en) | 2015-04-29 |
Family
ID=53093852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410783621.1A Pending CN104578408A (en) | 2014-12-16 | 2014-12-16 | State monitoring and tendency estimation device for secondary equipment of intelligent substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104578408A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105046402A (en) * | 2015-06-23 | 2015-11-11 | 国家电网公司 | State evaluating method applied to secondary equipment of intelligent transformer station |
| CN105305639A (en) * | 2015-11-24 | 2016-02-03 | 国网河南电力公司 | Relay protection communication device, intelligent relay protection system, and method |
| CN105320123A (en) * | 2015-09-25 | 2016-02-10 | 中国南方电网有限责任公司 | Measurement and control equipment health state evaluating system and method based on online monitored data |
| CN105375638A (en) * | 2015-12-08 | 2016-03-02 | 国网浙江省电力公司绍兴供电公司 | Intelligent transformer station secondary system real-time alarm analytical apparatus and method |
| CN105490387A (en) * | 2015-12-29 | 2016-04-13 | 武汉凯默电气有限公司 | Online verification apparatus and method for safety measures for intelligent substation relay protection equipment |
| CN106300662A (en) * | 2016-08-23 | 2017-01-04 | 南京国电南自电网自动化有限公司 | The secondary device on-line monitoring and fault diagonosing system merged based on information physical |
| CN106571627A (en) * | 2016-10-12 | 2017-04-19 | 中国南方电网有限责任公司 | Secondary device health state evaluation method based on on-line monitoring information |
| CN106646019A (en) * | 2016-10-09 | 2017-05-10 | 国网四川省电力公司电力科学研究院 | Relay automation tester using secondary state detection and closed loop testing method |
| CN112422324A (en) * | 2020-10-28 | 2021-02-26 | 国网山东省电力公司电力科学研究院 | Secondary system fault positioning method based on improved Bayesian algorithm |
| CN113300466A (en) * | 2021-05-21 | 2021-08-24 | 温州电力设计有限公司 | AI intelligence combined independent wind control alarm system and method |
| CN113346614A (en) * | 2021-05-28 | 2021-09-03 | 国网甘肃省电力公司白银供电公司 | State evaluation system for secondary equipment of power grid intelligent substation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958581A (en) * | 2010-10-28 | 2011-01-26 | 华中电网有限公司 | Network message monitoring and fault recording integrated device for intelligent transformer substation |
| CN103166323A (en) * | 2013-04-11 | 2013-06-19 | 上海毅昊自动化有限公司 | System for monitoring secondary circuit model on line in real time based on protection device |
| CN103296757A (en) * | 2013-05-21 | 2013-09-11 | 国家电网公司 | Multi-parameter identification based secondary system fault diagnosing method for intelligent substation |
-
2014
- 2014-12-16 CN CN201410783621.1A patent/CN104578408A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958581A (en) * | 2010-10-28 | 2011-01-26 | 华中电网有限公司 | Network message monitoring and fault recording integrated device for intelligent transformer substation |
| CN103166323A (en) * | 2013-04-11 | 2013-06-19 | 上海毅昊自动化有限公司 | System for monitoring secondary circuit model on line in real time based on protection device |
| CN103296757A (en) * | 2013-05-21 | 2013-09-11 | 国家电网公司 | Multi-parameter identification based secondary system fault diagnosing method for intelligent substation |
Non-Patent Citations (1)
| Title |
|---|
| 高磊 等: "智能变电站监控***时间体系研究", 《电力自动化设备》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105046402A (en) * | 2015-06-23 | 2015-11-11 | 国家电网公司 | State evaluating method applied to secondary equipment of intelligent transformer station |
| CN105320123B (en) * | 2015-09-25 | 2018-03-13 | 中国南方电网有限责任公司 | A kind of measuring and controlling equipment health status evaluation system and method based on online monitoring data |
| CN105320123A (en) * | 2015-09-25 | 2016-02-10 | 中国南方电网有限责任公司 | Measurement and control equipment health state evaluating system and method based on online monitored data |
| CN105305639A (en) * | 2015-11-24 | 2016-02-03 | 国网河南电力公司 | Relay protection communication device, intelligent relay protection system, and method |
| CN105305639B (en) * | 2015-11-24 | 2018-08-03 | 国网河南电力公司 | A kind of relay protection communication device, intelligent relay protection system, method |
| CN105375638A (en) * | 2015-12-08 | 2016-03-02 | 国网浙江省电力公司绍兴供电公司 | Intelligent transformer station secondary system real-time alarm analytical apparatus and method |
| CN105490387B (en) * | 2015-12-29 | 2018-02-02 | 武汉凯默电气有限公司 | The online capacity checking device of intelligent substation relay protection device safety measure and method |
| CN105490387A (en) * | 2015-12-29 | 2016-04-13 | 武汉凯默电气有限公司 | Online verification apparatus and method for safety measures for intelligent substation relay protection equipment |
| CN106300662A (en) * | 2016-08-23 | 2017-01-04 | 南京国电南自电网自动化有限公司 | The secondary device on-line monitoring and fault diagonosing system merged based on information physical |
| CN106646019A (en) * | 2016-10-09 | 2017-05-10 | 国网四川省电力公司电力科学研究院 | Relay automation tester using secondary state detection and closed loop testing method |
| CN106571627A (en) * | 2016-10-12 | 2017-04-19 | 中国南方电网有限责任公司 | Secondary device health state evaluation method based on on-line monitoring information |
| CN112422324A (en) * | 2020-10-28 | 2021-02-26 | 国网山东省电力公司电力科学研究院 | Secondary system fault positioning method based on improved Bayesian algorithm |
| CN112422324B (en) * | 2020-10-28 | 2022-05-03 | 国网山东省电力公司电力科学研究院 | Secondary system fault positioning method based on improved Bayesian algorithm |
| CN113300466A (en) * | 2021-05-21 | 2021-08-24 | 温州电力设计有限公司 | AI intelligence combined independent wind control alarm system and method |
| CN113346614A (en) * | 2021-05-28 | 2021-09-03 | 国网甘肃省电力公司白银供电公司 | State evaluation system for secondary equipment of power grid intelligent substation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104578408A (en) | State monitoring and tendency estimation device for secondary equipment of intelligent substation | |
| CN103296757B (en) | Multi-parameter identification based secondary system fault diagnosing method for intelligent substation | |
| CN103823433B (en) | Method for realizing relay protection equipment on-line monitoring by use of communication process analysis | |
| CN103033703B (en) | A kind of online, intelligent substation analysis test method of off-line integral type | |
| US10164431B2 (en) | Outage management and prediction for a power grid system | |
| CN105610245B (en) | Intelligent substation simulates main website integrated test system | |
| CN106787210A (en) | A kind of Cloud Server monitoring management method for being applied to power system transformer | |
| CN110048507B (en) | Automatic inspection method and system for power distribution automation system | |
| CN106559436A (en) | A kind of safety monitoring management method for being applied to power system transformer | |
| CN104155970A (en) | Intelligent substation monitoring host closed loop test system and test method thereof | |
| CN107180314B (en) | Operation and maintenance business model modeling method based on primary and secondary system incidence relation | |
| CN105262210A (en) | System and method for analysis and early warning of substation network security | |
| CN103926917A (en) | Intelligent transformer substation master control device testing system and method | |
| CN110991037A (en) | Intelligent substation test simulation system based on SCD | |
| CN203691057U (en) | Arc online monitoring and protecting system | |
| CN105375638A (en) | Intelligent transformer station secondary system real-time alarm analytical apparatus and method | |
| CN105186697A (en) | Remote diagnosis system of IED operating conditions of IEC61850 intelligent substation | |
| CN109450084B (en) | Intelligent substation multilayer protocol collaborative analysis method based on information data link | |
| CN102868224A (en) | Secondary network measurement and multimode decision-making method and device for intelligent substation | |
| CN105510754A (en) | Dual AD sampling inconsistency judging method for intelligent substation | |
| CN103235217B (en) | Dual protection act consistance monitoring device and monitoring method | |
| CN110763937A (en) | Intelligent substation test platform and method based on electromagnetic transient real-time simulation | |
| CN202872464U (en) | Secondary network measurement and multimode decision apparatus of intelligent substation | |
| CN107064743A (en) | Power distribution network transient state ripple failure tracking method and device based on cloud analysis with identification | |
| CN102904721A (en) | Signature and authentication method for information safety control of intelligent substations and device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |