CN106253201A - A kind of protective relaying device integrated for conventional stations and intelligent station and method - Google Patents
A kind of protective relaying device integrated for conventional stations and intelligent station and method Download PDFInfo
- Publication number
- CN106253201A CN106253201A CN201610706215.4A CN201610706215A CN106253201A CN 106253201 A CN106253201 A CN 106253201A CN 201610706215 A CN201610706215 A CN 201610706215A CN 106253201 A CN106253201 A CN 106253201A
- Authority
- CN
- China
- Prior art keywords
- mcu
- unit
- relaying device
- protective relaying
- collecting unit
- 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.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005070 sampling Methods 0.000 claims abstract description 27
- 238000004088 simulation Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims abstract description 4
- 230000010354 integration Effects 0.000 claims abstract description 3
- 230000008569 process Effects 0.000 claims description 15
- 241000272814 Anser sp. Species 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 238000013480 data collection Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 208000032368 Device malfunction Diseases 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
-
- H02J13/0062—
Landscapes
- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Evolutionary Computation (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of protective relaying device integrated for conventional stations and intelligent station, including CPU, traditional analog amount collecting unit, digitized simulation amount collecting unit, open into unit, output unit, man-machine interface plug-in unit, described CPU includes double MCU, described traditional analog amount collecting unit includes the routine transformer coupled successively, two-way low-pass filtering loop, two-way A/D sampling circuit, described digitized simulation amount collecting unit includes the electronic mutual inductor being sequentially connected with, data combination unit, into unit, described opening includes that be sequentially connected with opens into module, light every, interface module, described output the exit relay that unit includes being sequentially connected with, light every, interface module, described man-machine interface plug-in unit includes human computer conversation MCU.The present invention also proposes a kind of for conventional stations with the relay protecting method of intelligent station integration, has simple in construction, easy to use, reliability is high, the feature that stable, reliable in action, installation and debugging are quick, applied widely.
Description
Technical field
The present invention relates to a kind of protective relaying device integrated for conventional stations and intelligent station and method, belong to power train
System technical field of relay protection.
Background technology
Along with the rapid expansion of intelligent grid scale, newly-built, enlarging, transformation project etc. are dramatically increased, traditional power transformation
Stand and intelligent substation can coexist within one the longest period in a large number, and the Morphological Diversity of intelligent substation requires relay
Protection device also exists with variform, such as the tripping operation of traditional sampling GOOSE, the tripping operation of digitized sampling tradition, digitized sampling
GOOSE trips these three application mode, and current domestic Ji great relay protection manufacturer is all to carry according to different application scenarios
For different hardware type, the protective relaying device of different editions software, the overall architecture of every kind of protective relaying device is the most different,
Model will certainly be caused various, change trouble, and be not easy to the management that relay protection is professional, and based on tradition transformer station and intelligence
The application technology of the relay protection of transformer station's integration will solve above-mentioned predicament, and installation and debugging are quick, applied widely.
Summary of the invention
It is an object of the invention to, solve the defect that prior art exists, propose one for conventional stations and intelligent station one
The protective relaying device of body and method, overcome existing protective relaying device to need according to on-site conventional station or the application of intelligent station
Occasion carrys out the technical problem of discriminating device model and hardware configuration.
The present invention adopts the following technical scheme that a kind of protective relaying device integrated for conventional stations and intelligent station, its
It is characterised by, including CPU, traditional analog amount collecting unit, digitized simulation amount collecting unit, opens into unit, output unit, people
Machine interface card, described CPU includes double MCU, routine transformer that described traditional analog amount collecting unit includes coupling successively, double
Low-pass filtering loop, road, two-way A/D sampling circuit, described digitized simulation amount collecting unit includes that the electronic type being sequentially connected with is mutual
Sensor, data combination unit, described in open into unit opening of including being sequentially connected with into module, light every, interface module, described in output list
Exit relay that unit includes being sequentially connected with, light are every, interface module, and described man-machine interface plug-in unit includes human computer conversation MCU, described
Human computer conversation MCU is connected with described couple of MCU by HDLC bus, in order to realize driving display interface, program management, configuration pipe
Reason, route protection module data collection, across interval protection module data collection, process layer module data collection, and provide station
Control layer IEC61850MMS interface, pair time interface communicate with monitoring system interface, printing interface；Described A/D sampling circuit, institute
State data combination unit to be connected with described couple of MCU by HSB bus, described in open unit interface module, described in output list
The interface module of unit is connected with described couple of MCU by spi bus.
Preferably, the described couple of MCU include main MCU, from MCU, and described main MCU is used for carrying out fault interrupting process, protection is patrolled
Volume judge, drive breaker tripping and closing outlet, described be used for carrying out starting algorithm from MCU, described main MCU and described also set between MCU
It is equipped with intelligent operation box.
The present invention also proposes a kind of relay protecting method integrated for conventional stations and intelligent station, it is characterised in that bag
Include following steps:
According to the mode of acquisition process layer configuration file, double MCU described in step SS1 judge that protective relaying device selects to pass
System station sampling configuration or intelligent station sampling configuration, if it is determined that be conventional stations sampling configuration, then proceed to step SS2, otherwise judge
For intelligent station sampling configuration, proceed to step SS3；
Step SS2 conventional stations does not has process layer configuration file, and protective relaying device is by using routine transformer gathering
To voltage and current signal send double MCU by low-pass filtering loop and A/D sampling circuit to by HSB bus, proceed to step
Rapid SS4；
Step SS3 protective relaying device gets process layer configuration file, and protective relaying device passes through electronic mutual inductor
Double MCU is passed to by HSB bus with merging collecting unit；When using SV access way, when a certain circuit-switched data quality abnormal
Time, double MCU of protective relaying device send alarm, reasonable encumbrance and according to this and exit defencive function instruction, if two-way A/D sampling
When one of the data in loop are abnormal, the MCU of protective relaying device sends the instruction exiting defencive function, prevents protective relaying device
Misoperation, proceeds to step SS4；
Described in step SS4, double MCU judge whether tripped by GOOSE or use electricity by resolving layer configuration file
The mode of cable tripping operation；When using GOOSE message mode, double MCU are mutual with digitized simulation amount collecting unit by HSB bus
Information, double MCU receive the positional information of intelligent operation box transmission and by breaker tripping and closing order by digitized simulation amount collecting unit
It is sent to intelligent operation box by GOOSE signal；When using cable wavy trajectory, breaker tripping and closing are ordered by double MCU by spi bus
Order be sent to interface module, interface module by light every driving exit relay action.
Relational language is explained:
MMI refers to the Man i.e. man machine interface of Machine Interface, and MMI is by the people of mobile communication and moves with providing
The interface of contacts between the mobile phone of dynamic communication service.
The beneficial effect that the present invention is reached: (1) present invention can be suitable for diversified application scenarios, can meet different use
The multiple demand at family, both can substitute the protection device that conventional substation is original completely, also can be suitably used for newly-built intelligence change
Power station, can support local digital equipment mode, fully digitalization equipment mode, also support digital improvement station；(2) this
Bright flexibly configurable, have general, be prone to propagation energy and be applicable to conventional stations and intelligent station, and can be used for the application that intelligent station is different
Form, installation and debugging are quick, applied widely, have a good application prospect；The present invention uses Double MCUs Architecture to can guarantee that list
Protection device not misoperation after the A/D of MCU is abnormal, improves the reliability of protective relaying device；(4) present invention can be suitably used for
110kV and above conventional stations and intelligent station, comprise tradition intelligent substationization transformation, tradition transformer+MU on the spot
The transformation of digital intelligent station, newly-built tradition transformer access intelligent station, the newly-built intelligent substation using electronic mutual inductor, adopt
The intelligent substation transformation etc. transforming, using electric mutual inductor by traditional intelligent substationization of electronic mutual inductor runs work
Condition.
Accompanying drawing explanation
Fig. 1 is the overall hardware configuration of a kind of protective relaying device integrated for conventional stations and intelligent station of the present invention
Connection diagram.
Fig. 2 is the internal bus connection diagram of the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.Following example are only used for clearly illustrating the present invention
Technical scheme, and can not limit the scope of the invention with this.
Fig. 1 is the overall hardware configuration of a kind of protective relaying device integrated for conventional stations and intelligent station of the present invention
Connection diagram.The present invention proposes a kind of protective relaying device integrated for conventional stations and intelligent station, including CPU, tradition
Analog acquisition unit, digitized simulation amount collecting unit, open into unit, output unit, man-machine interface plug-in unit, described CPU bag
Include double MCU, routine transformer that described traditional analog amount collecting unit includes coupling successively, two-way low-pass filtering loop, two-way
A/D sampling circuit, described digitized simulation amount collecting unit includes electronic mutual inductor, the data combination unit being sequentially connected with,
Described open into unit opening of including being sequentially connected with into module, light every, interface module, described in output unit and include that be sequentially connected with goes out
Mouthful relay, light are every, interface module, and described man-machine interface plug-in unit includes that human computer conversation MCU, described human computer conversation MCU pass through
HDLC bus is connected with described couple of MCU, in order to realize driving display interface, program management, configuration management, route protection module
Data acquisition, across interval protection module data collection, process layer module data collection, and provide station level IEC61850MMS
Interface, pair time interface communicate with monitoring system interface, printing interface；Described A/D sampling circuit, described data combination unit
Be connected with described couple of MCU by HSB bus, described in open unit interface module, described in output unit interface module lead to
Cross spi bus to be connected with described couple of MCU.The described couple of MCU include main MCU, from MCU, described main MCU is used for carrying out fault interrupting
Process, relay protective scheme judges, drive breaker tripping and closing outlet, described is used for carrying out starting algorithm from MCU, described main MCU with described from
Intelligent operation box it is additionally provided with between MCU.
Fig. 2 is the internal bus connection diagram of the present invention.The present invention also proposes a kind of for conventional stations and intelligent station one
The relay protecting method of body, it is characterised in that comprise the steps:
According to the mode of acquisition process layer configuration file, double MCU described in step SS1 judge that protective relaying device selects to pass
System station sampling configuration or intelligent station sampling configuration, if it is determined that be conventional stations sampling configuration, then proceed to step SS2, otherwise judge
For intelligent station sampling configuration, proceed to step SS3；
Step SS2 conventional stations does not has process layer configuration file, and protective relaying device is by using routine transformer gathering
To voltage and current signal send double MCU by low-pass filtering loop and A/D sampling circuit to by HSB bus, proceed to step
Rapid SS4；
Step SS3 protective relaying device gets process layer configuration file, and protective relaying device passes through electronic mutual inductor
Double MCU is passed to by HSB bus with merging collecting unit；When using SV access way, when a certain circuit-switched data quality abnormal
Time, double MCU of protective relaying device send alarm, reasonable encumbrance and according to this and exit defencive function instruction, if two-way A/D sampling
When one of the data in loop are abnormal, the MCU of protective relaying device sends the instruction exiting defencive function, prevents protective relaying device
Misoperation, proceeds to step SS4；
Described in step SS4, double MCU judge whether tripped by GOOSE or use electricity by resolving layer configuration file
The mode of cable tripping operation；When using GOOSE message mode, double MCU are mutual with digitized simulation amount collecting unit by HSB bus
Information, double MCU receive the positional information of intelligent operation box transmission and by breaker tripping and closing order by digitized simulation amount collecting unit
It is sent to intelligent operation box by GOOSE signal；When using cable wavy trajectory, breaker tripping and closing are ordered by double MCU by spi bus
Order be sent to interface module, interface module by light every the negative supply action driving exit relay.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and deformation, these improve and deformation
Also should be regarded as protection scope of the present invention.
Claims (3)
1. the protective relaying device being used for conventional stations and intelligent station integration, it is characterised in that include CPU, traditional analog
Amount collecting unit, digitized simulation amount collecting unit, opening into unit, output unit, man-machine interface plug-in unit, described CPU includes double
MCU, described traditional analog amount collecting unit includes that the routine transformer coupled successively, two-way low-pass filtering loop, two-way A/D adopt
Sample loop, described digitized simulation amount collecting unit includes electronic mutual inductor, the data combination unit being sequentially connected with, described in open
Enter that unit includes being sequentially connected with opens into module, light every, interface module, described in output the outlet relay that unit includes being sequentially connected with
Device, light are every, interface module, and described man-machine interface plug-in unit includes that human computer conversation MCU, described human computer conversation MCU are by HDLC bus
It is connected with described couple of MCU, drives display interface, program management, configuration management, route protection module data to adopt in order to realizing
Collection, across interval protection module data collection, process layer module data collection, and provide station level IEC61850MMS interface, right
Time interface communicate with monitoring system interface, printing interface；Described A/D sampling circuit, described data combination unit pass through HSB
Bus is connected with described couple of MCU, described in open unit interface module, described in output the interface module of unit total by SPI
Line is connected with described couple of MCU.
A kind of protective relaying device integrated for conventional stations and intelligent station the most according to claim 1, its feature exists
Include main MCU in, the described couple of MCU, from MCU, described main MCU is used for carrying out fault interrupting process, relay protective scheme judges, drive and jump
Close a floodgate outlet, described be used for carrying out starting algorithm from MCU, described main MCU and described be additionally provided with intelligent operation between MCU
Case.
3. a side based on the protective relaying device integrated for conventional stations and intelligent station according to claim 2
Method, it is characterised in that comprise the steps:
Described in step SS1, according to the mode of acquisition process layer configuration file, double MCU judge that protective relaying device selects conventional stations
Sampling configuration or intelligent station sampling configuration, if it is determined that be conventional stations sampling configuration, then proceed to step SS2, be otherwise judged to intelligence
Can stand sampling configuration, proceed to step SS3；
Step SS2 conventional stations do not has process layer configuration file, and protective relaying device is by using routine transformer collecting
Voltage and current signal sends double MCU by low-pass filtering loop and A/D sampling circuit to by HSB bus, proceeds to step
SS4；
Step SS3 protective relaying device gets process layer configuration file, and protective relaying device passes through electronic mutual inductor and conjunction
And collecting unit passes to double MCU by HSB bus；When using SV access way, when a certain circuit-switched data quality abnormal, continue
Double MCU of electrical protective device send alarm, reasonable encumbrance and according to this and exit defencive function instruction, if two-way A/D sampling circuit
One of data abnormal time, the MCU of protective relaying device sends the instruction exiting defencive function, prevents protective relaying device malfunction
Make, proceed to step SS4；
Described in step SS4, double MCU judge whether to be tripped by GOOSE or use cable to jump by resolving layer configuration file
The mode of lock；When using GOOSE message mode, double MCU are believed with digitized simulation amount collecting unit alternately by HSB bus
Breath, double MCU receive the positional information of intelligent operation box transmission by digitized simulation amount collecting unit and breaker tripping and closing order are led to
Cross GOOSE signal and be sent to intelligent operation box；When using cable wavy trajectory, double MCU pass through spi bus by breaker tripping and closing order
Be sent to interface module, interface module by light every driving exit relay action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610706215.4A CN106253201B (en) | 2016-08-23 | 2016-08-23 | One kind is for conventional stations and the integrated protective relaying device of intelligent station and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610706215.4A CN106253201B (en) | 2016-08-23 | 2016-08-23 | One kind is for conventional stations and the integrated protective relaying device of intelligent station and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106253201A true CN106253201A (en) | 2016-12-21 |
| CN106253201B CN106253201B (en) | 2018-11-23 |
Family
ID=57594691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610706215.4A Active CN106253201B (en) | 2016-08-23 | 2016-08-23 | One kind is for conventional stations and the integrated protective relaying device of intelligent station and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106253201B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655076A (en) * | 2016-12-29 | 2017-05-10 | 许继集团有限公司 | On-site relay protection reliability control apparatus and relay protection method |
| CN106684838A (en) * | 2016-12-29 | 2017-05-17 | 许继集团有限公司 | Local relay protection control device and relay projection method |
| CN109256744A (en) * | 2018-11-01 | 2019-01-22 | 北京四方继保自动化股份有限公司 | A kind of protective relaying device high reliability analogue quantity acquiring method |
| CN109616998A (en) * | 2018-12-21 | 2019-04-12 | 南京国电南自电网自动化有限公司 | The inconsistent differentiation processing method of protective relaying device voltage based on dual processors sampling |
| CN109713647A (en) * | 2019-02-22 | 2019-05-03 | 南京电研电力自动化股份有限公司 | A kind of busbar protective device redundancy design method |
| CN110277762A (en) * | 2019-06-05 | 2019-09-24 | 国家电网有限公司 | The differential protection locking system and method for electronic mutual inductor data acquisition abnormity |
| CN111815003A (en) * | 2020-07-31 | 2020-10-23 | 国网浙江省电力有限公司绍兴供电公司 | Multifunctional integration-based secondary overhaul operation system and method |
| CN113050476A (en) * | 2021-02-26 | 2021-06-29 | 许继集团有限公司 | High-precision ADC acquisition control system suitable for double-MCU hardware architecture |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012055138A (en) * | 2010-09-03 | 2012-03-15 | Chugoku Electric Power Co Inc:The | Equipment integration system for substation |
| CN102638106A (en) * | 2012-04-25 | 2012-08-15 | 广东电网公司珠海供电局 | Station domain control system based on process layer GOOSE (Generic Object Oriented Substation Event) and implementation method thereof |
| CN202997531U (en) * | 2012-11-15 | 2013-06-12 | 南京国电南自电网自动化有限公司 | Traditional intelligent integrated portable over-current protection device |
| CN103337905A (en) * | 2013-05-09 | 2013-10-02 | 南京国电南自电网自动化有限公司 | Digitalized protection and measuring/control device integrated with metering function |
| CN104333138A (en) * | 2014-11-19 | 2015-02-04 | 国电南瑞科技股份有限公司 | High-voltage protection, measurement and control multifunctional integrated device |
| CN104701979A (en) * | 2014-11-20 | 2015-06-10 | 许继集团有限公司 | Protective measurement and control integrated device and protective measurement and control method |
-
2016
- 2016-08-23 CN CN201610706215.4A patent/CN106253201B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012055138A (en) * | 2010-09-03 | 2012-03-15 | Chugoku Electric Power Co Inc:The | Equipment integration system for substation |
| CN102638106A (en) * | 2012-04-25 | 2012-08-15 | 广东电网公司珠海供电局 | Station domain control system based on process layer GOOSE (Generic Object Oriented Substation Event) and implementation method thereof |
| CN202997531U (en) * | 2012-11-15 | 2013-06-12 | 南京国电南自电网自动化有限公司 | Traditional intelligent integrated portable over-current protection device |
| CN103337905A (en) * | 2013-05-09 | 2013-10-02 | 南京国电南自电网自动化有限公司 | Digitalized protection and measuring/control device integrated with metering function |
| CN104333138A (en) * | 2014-11-19 | 2015-02-04 | 国电南瑞科技股份有限公司 | High-voltage protection, measurement and control multifunctional integrated device |
| CN104701979A (en) * | 2014-11-20 | 2015-06-10 | 许继集团有限公司 | Protective measurement and control integrated device and protective measurement and control method |
Non-Patent Citations (1)
| Title |
|---|
| 薛晨等: "智能变电站信息一体化应用", 《电力自动化设备》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655076A (en) * | 2016-12-29 | 2017-05-10 | 许继集团有限公司 | On-site relay protection reliability control apparatus and relay protection method |
| CN106684838A (en) * | 2016-12-29 | 2017-05-17 | 许继集团有限公司 | Local relay protection control device and relay projection method |
| CN106655076B (en) * | 2016-12-29 | 2019-05-14 | 许继集团有限公司 | Site reliability of relay protection control device and relay protecting method |
| CN109256744A (en) * | 2018-11-01 | 2019-01-22 | 北京四方继保自动化股份有限公司 | A kind of protective relaying device high reliability analogue quantity acquiring method |
| CN109616998A (en) * | 2018-12-21 | 2019-04-12 | 南京国电南自电网自动化有限公司 | The inconsistent differentiation processing method of protective relaying device voltage based on dual processors sampling |
| CN109713647A (en) * | 2019-02-22 | 2019-05-03 | 南京电研电力自动化股份有限公司 | A kind of busbar protective device redundancy design method |
| CN110277762A (en) * | 2019-06-05 | 2019-09-24 | 国家电网有限公司 | The differential protection locking system and method for electronic mutual inductor data acquisition abnormity |
| CN110277762B (en) * | 2019-06-05 | 2021-04-20 | 国家电网有限公司 | Differential protection locking system and method for data acquisition abnormity of electronic transformer |
| CN113036711A (en) * | 2019-06-05 | 2021-06-25 | 国家电网有限公司 | Method for acquiring abnormal differential protection locking system by using electronic transformer data |
| CN113036711B (en) * | 2019-06-05 | 2022-08-12 | 国网安徽省电力有限公司铜陵供电公司 | Method for acquiring abnormal differential protection locking system by using electronic transformer data |
| CN111815003A (en) * | 2020-07-31 | 2020-10-23 | 国网浙江省电力有限公司绍兴供电公司 | Multifunctional integration-based secondary overhaul operation system and method |
| CN113050476A (en) * | 2021-02-26 | 2021-06-29 | 许继集团有限公司 | High-precision ADC acquisition control system suitable for double-MCU hardware architecture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106253201B (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106253201A (en) | A kind of protective relaying device integrated for conventional stations and intelligent station and method | |
| CN108051706A (en) | Automatic throw-in equipment of emergency power supply fault recognition method and system | |
| CN203166626U (en) | Intelligent traction substation | |
| CN201846138U (en) | Breaker intelligent assembly based on unified section data acquisition | |
| KR102088740B1 (en) | An artificial intelligence-based parameter setting value automatic calculation protection relays | |
| CN109599941A (en) | A kind of distribute-electricity transformer district perception terminal device and method | |
| CN105305365A (en) | Power grid relay protection emergency management system | |
| CN107067081A (en) | Substation secondary maintenance safety measure generation method based on many object models | |
| CN104331777A (en) | Error-preventing management system for county level power grid dispatching operation | |
| CN203135572U (en) | Transformer substation DC device state monitoring system | |
| CN204649927U (en) | A kind of primary cut-out state monitoring device | |
| CN106532692A (en) | Static state safety analysis method and apparatus for regional power grid considering backup power automatic switching | |
| CN2847652Y (en) | Remote fault early warning terminal device for using electricity site | |
| CN209948789U (en) | Power distribution monitoring system | |
| CN101846715A (en) | Low-current ground fault line selection device and multi-platform combined line selection method | |
| CN103545805A (en) | Modeling-based railway power supply arm monitoring method | |
| CN207663532U (en) | Based on the anti-error behaviour's speech prompting system of switchgear | |
| CN207149078U (en) | A kind of low-voltage collecting meter reading system fault locator | |
| CN107871030B (en) | Substation secondary maintenance safety measure generation method based on SCD file object model | |
| CN206759153U (en) | A kind of backup auto-activating device for possessing self-diagnostic function | |
| CN114022030B (en) | Substation bus state dynamic detection analysis and risk assessment method | |
| CN107846077A (en) | Intelligent railway distribution substation Protection control system and its operation method | |
| CN201854085U (en) | Bus coupler segmented monitoring protection and comprehensive self-automatic input device | |
| CN204334122U (en) | Multifunction station territory protection measurement and control integration device | |
| CN114024368A (en) | Hybrid micro-grid application platform and control method 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |