CN102769278B - Layering protective system - Google Patents
Layering protective system Download PDFInfo
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- CN102769278B CN102769278B CN201210289444.2A CN201210289444A CN102769278B CN 102769278 B CN102769278 B CN 102769278B CN 201210289444 A CN201210289444 A CN 201210289444A CN 102769278 B CN102769278 B CN 102769278B
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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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
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a layering protective system which comprises a three-layer relaying protective system formed by on-site interval protection, substation area protection and wide area protection to achieve a relay protective frame with the on-site interval protection serving as a main body and the substation area protection and the wide area protection serving as complement. The layering protective system organically combines the on-site interval protection, the substation area protection and the wide area protection to form the complete relaying protective system, independence and reliability of an interval protection function are guaranteed, substation area protection and wide area protection safety is improved, the existing relay protection function is obviously promoted, and safety operation of electric accessories and power grids is forcefully guaranteed.
Description
Technical field
The present invention relates to the relaying protection system of transformer station, relate in particular to a kind of stratification protection system, belong to electrotechnics.
Background technology
Relaying protection specialty is close with transformer station's overall technology directional correlation, and research New Generation of Intelligent substation relay protection should be paid close attention to intelligent substation overall technology developing direction; Meanwhile, as the important component part of transformer station, relaying protection also can produce impetus to overall technology development.
Intelligent grid is built, and has advanced the scientific and technological progress of electrical network, has accelerated the application in electric power system of new theory, new technology, new equipment.The informationization of electrical network, automation, the interactive technological progress of having accelerated Power system security control and resist technology field, to the development of electrical secondary system relay protection device rare opportunity especially.The application of high performance microprocessor, high-speed communicating network, for modularized design and integrated the providing of function of protection, control appliance may; The application of IEC61850 standard, the information realization between power transformation station equipment, between transformer station knowledge sharing and alternation, utilizing the data message of other equipment or other transformer stations in station to promote protective value becomes possibility.Site relaying protection is arranged near primary equipment, promotes protective value, has simplified secondary connection.
Consider existing support technology basis, electrical network actual demand and technology prediction needs, New Generation of Intelligent transformer station technological development direction should be:
(1) protection equipment " step forward a step, to recession one step ": " step forward a step " refers to that interval protective relaying device transferred to switch yard and arranged by control room; " to recession one step " refers to utilize territory, station and regional power grid information to optimize interval protective value; obtain " stand territory and area information " to recession one step; overcome the congenital deficiency of interval protection obtaining information, by " far and near combination ", form perfect relay protective plan.
(2) the further innovative design method of New Generation of Intelligent substation relay protection, adopts visualization tool, facilitates operation, maintenance and reorganization and expansion.
(3) protection overhaul of the equipments conditioning, application function intellectuality.
(4) protection should adapt to novel primary equipment and novel breaker.
Relaying protection is the first direction of power grid security, and basic task is the safe and stable operation that ensures electrical network, in the technical research of New Generation of Intelligent substation relay protection and application process, should adhere to following principle:
1) " four property " of adhering to relaying protection is firm, and the application of new technology should be the performance that promotes relaying protection, instead of uses new technology in order to use new technology;
2) adhere to strengthening main protection, simplify the principle of backup protection;
3) adhere to that protection is according to the principle of arranged spaced;
4) defencive function in wide area protection control system mainly utilizes Wide-area Measurement Information to optimize backup protection, instead of centralized protection; Wide area protection control system mainly lays particular emphasis on control function, belongs to the category of electric power system second and three lines of defence.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art; the invention provides and a kind of form multi-level relaying protection system by interval protection on the spot, stand territory protection and wide area protection, to realize interval protection be main body, stand territory and wide area protection control system are supplementary system architecture.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
Stratification protection system, comprises the tri-layer relaying protection system being made up of the protection of interval on the spot, stand territory protection and wide area protection, realize taking interval protection on the spot protect as main body, the territory of stand and wide area protection as supplementary relay protection framework; The protection of described interval on the spot utilizes the independent decision-making of interval information on the spot of object of protection, realizes the main protection to object of protection fast and reliable and does not rely on the backup protection of passage; The protection of territory, described station utilizes transformer station's real time information centralized decision-making, realizes the adaptive backup protection of object of protection and relevant control; Described wide area protection utilizes the panorama information sharing decision-making of whole Grid Nei Ge transformer station, realizes supplementing and optimizing and protection and the cooperation of surely controlling the existing protection of object of protection.
Said system, utilizes global information optimization protection and control strategy scheme, realizes the coordinating and unifying of protect on the spot, stand territory protection and wide area protection, realizes the unification of protection reliability and quick-action; Utilize stand territory and regional power grid information optimization interval protective value, obtain " stand territory and area information " to recession one step, overcome the congenital deficiency of interval protection obtaining information, by " far and near combination ", form perfect relay protective plan.
The protection of described interval on the spot adopts interval protective device on the spot to realize; described interval on the spot protective device is pressed object of protection configuration, and site is arranged in object of protection week side, transfers specifically to switch yard and arranges; install near protected equipment, shorten the distance with protected equipment.The protection of described interval on the spot adopts " cable sampling, cable tripping operation ", realizes and connects blocking function in conjunction with GOOSE network; The sampling of employing cable, does not rely on cable tripping operation and has ensured the quick-action of protecting; Adopt GOOSE network to realize and connect blocking function, given full play to the information sharing advantage of IEC 61850; No matter, after process-level network, station level network and division communication system fault, all do not affect the main protection performance of interval protective device on the spot, fully demonstrated " interval function autonomy " thought.
The protection of territory, described station adopts territory, station protected subsystem to realize, and territory, described station protected subsystem concentrates group screen to be arranged in transformer station's master-control room, in the station level of transformer station.Territory, the described station protected subsystem utilization information of entirely standing; solve traditional backup protection and only can obtain monospace electric parameters and switching value information; backup protection is long operate time; the problem that sensitivity and selectivity can not be taken into account; can realize full station prepared auto restart, breaker failure, low all voltage off-loads etc. and control function, the territory defencive function of standing can be independent of wide area protection and site interval defencive function simultaneously.
Described wide area protection adopts wide area protection subsystem to realize, and described wide area protection subsystem concentrates group screen to be arranged on dispatching terminal, in the wide area layer of whole Grid.Described wide area protection utilizes the cooperation of whole Grid Nei Ge transformer station panorama Information Simplification backup protection, shorten the operate time of backup protection, solve backup protection longer operate time, the problem that exists sensitivity and selectivity to take into account for the electrical network of operational mode complexity; Described wide area protection utilizes topological structure and the running status of whole Grid Nei Ge transformer station panorama information identification electrical network, optimizes the definite value of backup protection, solves the prior off-line setting calculation of protection definite value, is difficult to adapt to the power system operating mode problem constantly changing; Described wide area protection utilizes the cooperation of whole Grid Nei Ge transformer station's panorama information and the protection of network service feasible region and automatic safety device, avoids the cascading trip accident that causes stabilization of power grids accident to occur.
Beneficial effect: stratification protection system provided by the invention; by the protection of site interval, stand territory protection and wide area protection three combination; the relaying protection system of complete; both independence and the reliability of interval defencive function had been ensured; improve again the fail safe of the protection of territory, station and wide area protection; can significantly improve existing relaying protection performance, thus strong guarantee safe operation and the electric power netting safe running of electric equipment.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 a kind of stratification protection system; comprise the tri-layer relaying protection system being formed by the protection of interval on the spot, stand territory protection and wide area protection, realize taking interval protection on the spot protect as main body, the territory of stand and wide area protection as supplementary relay protection framework.The protection of described interval on the spot utilizes the independent decision-making of interval information on the spot of object of protection, realizes the main protection to object of protection fast and reliable and does not rely on the backup protection of passage; The protection of territory, described station utilizes transformer station's real time information centralized decision-making, realizes the adaptive backup protection of object of protection and relevant control; Described wide area protection utilizes the panorama information sharing decision-making of whole Grid Nei Ge transformer station, realizes supplementing and optimizing and protection and the cooperation of surely controlling the existing protection of object of protection.
The protection of described interval on the spot adopts interval protective device on the spot to realize, described interval on the spot protective device is pressed object of protection configuration, transfers to switch yard and arranges, installs near protected equipment, shorten and the distance of protected equipment, realized the site of protective device and arrange; The protection of described interval on the spot adopts cable sampling, cable tripping operation, realizes and connects blocking function in conjunction with GOOSE network.
The protection of territory, described station adopts territory, station protected subsystem to realize, and territory, described station protected subsystem concentrates group screen to be arranged in transformer station's master-control room, in the station level of transformer station.The territory protection of standing gathers the analog quantity information at each interval in transformer station by process layer SV net, and by entirely stand switching value information and send GOOSE outlet and order the primary equipment such as switch, disconnecting link is operated of GOOSE network collection.Territory, station protected subsystem just can be utilized full station information like this; solve traditional backup protection and only can obtain monospace electric parameters and switching value information; backup protection is long operate time; the problem that sensitivity and selectivity can not be taken into account; can realize full station prepared auto restart, breaker failure, low all voltage off-loads etc. and control function, the territory defencive function of standing can be independent of wide area protection and site interval defencive function simultaneously.
Described wide area protection adopts wide area protection subsystem to realize, and described wide area protection subsystem concentrates group screen to be arranged on dispatching terminal, in the wide area layer of whole Grid.Wide area protection subsystem carries out information exchange by network in telecontrol communication and each transformer station, obtains regional power grid information.Wide area protection subsystem just can utilize the backup protection of regional power grid Information Simplification to coordinate like this, shortens the operate time of backup protection, and solution backup protection is longer operate time, exists sensitivity and selectivity cannot take into account problem for the electrical network of operational mode complexity.Wide area protection subsystem can also utilize topological structure and the running status of regional power grid information identification electrical network, optimizes the definite value of backup protection, solves the prior off-line setting calculation of protection definite value, is difficult to adapt to the continuous power system operating mode problem changing.Last wide area protection subsystem can utilize the cooperation of network service and the protection of area information feasible region and automatic safety device, avoids the problem of the cascading trip that may cause stabilization of power grids accident.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. stratification protection system, it is characterized in that: this stratification protection system comprises the tri-layer relaying protection system being made up of the protection of interval on the spot, stand territory protection and wide area protection, realize taking interval protection on the spot protect as main body, the territory of stand and wide area protection as supplementary relay protection framework; The protection of described interval on the spot utilizes the independent decision-making of interval information on the spot of object of protection, realizes the main protection to object of protection fast and reliable and does not rely on the backup protection of passage; The protection of territory, described station utilizes transformer station's real time information centralized decision-making, realizes the adaptive backup protection of object of protection and relevant control; Described wide area protection utilizes the panorama information sharing decision-making of whole Grid Nei Ge transformer station, realizes supplementing and optimizing and protection and the cooperation of surely controlling the existing protection of object of protection;
The protection of described interval on the spot adopts interval protective device on the spot to realize, and described interval on the spot protective device is pressed object of protection configuration, and site is arranged in object of protection week side;
The protection of territory, described station adopts territory, station protected subsystem to realize, and territory, described station protected subsystem concentrates group screen to be arranged in transformer station's master-control room, in the station level of transformer station; The territory protection of standing gathers the analog quantity information at each interval in transformer station by process layer SV net, and by entirely stand switching value information and send GOOSE outlet and order primary equipment is operated of GOOSE network collection;
Described wide area protection utilizes the cooperation of whole Grid Nei Ge transformer station panorama Information Simplification backup protection, shortens the operate time of backup protection;
Described wide area protection utilizes topological structure and the running status of whole Grid Nei Ge transformer station panorama information identification electrical network, optimizes the definite value of backup protection.
2. stratification protection system according to claim 1, is characterized in that: the protection of described interval on the spot adopts cable sampling, cable tripping operation, realizes and connects blocking function in conjunction with GOOSE network.
3. stratification protection system according to claim 1, is characterized in that: described wide area protection adopts wide area protection subsystem to realize, and described wide area protection subsystem concentrates group screen to be arranged on dispatching terminal, in the wide area layer of whole Grid.
4. stratification protection system according to claim 1; it is characterized in that: described wide area protection utilizes the cooperation of whole Grid Nei Ge transformer station's panorama information and the protection of network service feasible region and automatic safety device, avoid the cascading trip accident that causes stabilization of power grids accident to occur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289444.2A CN102769278B (en) | 2012-08-14 | 2012-08-14 | Layering protective system |
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| CN201210289444.2A CN102769278B (en) | 2012-08-14 | 2012-08-14 | Layering protective system |
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| CN102769278A CN102769278A (en) | 2012-11-07 |
| CN102769278B true CN102769278B (en) | 2014-09-03 |
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| CN103151842B (en) * | 2013-03-18 | 2015-03-25 | 国家电网公司 | Hierarchical protection control system facing regional power grid |
| CN103384058B (en) * | 2013-07-08 | 2016-03-02 | 国电南瑞科技股份有限公司 | Based on transformer station's integration failure protection method of territory, station protection |
| CN103701206B (en) * | 2013-09-22 | 2016-05-04 | 南京国电南自电网自动化有限公司 | In intelligent substation, stand territory protection control device exempt from adjust, self-checking method |
| CN103905177B (en) * | 2014-03-21 | 2017-12-12 | 许继电气股份有限公司 | A kind of sampled value Transmission system and transmission method applied to wide area protection |
| CN105515169A (en) * | 2014-09-26 | 2016-04-20 | 南京南瑞继保电气有限公司 | Multilevel spare power automatic switching system, priority cooperation method, and construction method |
| CN104361526B (en) * | 2014-10-30 | 2018-10-23 | 国家电网公司 | A kind of active distribution network protection scheme formulating method containing distributed generation resource |
| CN105337269B (en) * | 2015-11-27 | 2018-03-23 | 国家电网公司 | A kind of device method for information interaction between towards the locality protection based on communication |
| CN106059085B (en) * | 2016-07-08 | 2018-10-16 | 国网山东省电力公司德州供电公司 | A kind of the Wide Area Power stratification protection and control system |
| CN107122470A (en) * | 2017-04-28 | 2017-09-01 | 国家电网公司 | A kind of relay protection actuating range method for visualizing |
| CN107769170B (en) * | 2017-10-10 | 2019-12-06 | 广东电网有限责任公司电力调度控制中心 | Checking method for remote decoupling and setting of main backup protection fixed value |
| CN107658984B (en) * | 2017-10-10 | 2020-09-25 | 广东电网有限责任公司电力调度控制中心 | Remote decoupling and setting method for main backup protection fixed value |
| CN109888728B (en) * | 2018-04-28 | 2020-09-25 | 广东电网有限责任公司 | Hierarchical protection method |
| CN109768527B (en) * | 2018-12-14 | 2020-11-24 | 国电南京自动化股份有限公司 | Intelligent traction substation hierarchical protection method and system |
| CN109347076A (en) * | 2018-12-20 | 2019-02-15 | 广东电网有限责任公司 | A kind of power station stratification protection system |
| CN109713794B (en) * | 2018-12-28 | 2020-12-29 | 广东电网有限责任公司 | Distributed intelligent self-recovery system and method |
| CN109783977B (en) * | 2019-02-01 | 2023-05-26 | 广东电网有限责任公司电力调度控制中心 | Virtual transformer station modeling method based on IEC61850 standard |
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Owner name: NARI NANJING CONTROL SYSTEM LTD. Effective date: 20141204 |
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Effective date of registration: 20141204 Address after: High road high tech Development Zone Nanjing city Jiangsu province 210061 No. 20 Patentee after: NARI Technology Development Co., Ltd. Patentee after: SGCC NARI Nanjing Control System Co., Ltd. Address before: High road high tech Development Zone Nanjing city Jiangsu province 210061 No. 20 Patentee before: NARI Technology Development Co., Ltd. |
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Inventor after: Deng Feng Inventor after: Deng Qinghong Inventor after: Luo Zhongda Inventor after: Zheng Yuping Inventor after: Sun Chaowu Inventor after: Wang Haiyan Inventor after: Zhou Shaoliang Inventor after: Mao Ailing Inventor after: Shen Jian Inventor after: Huang Guofang Inventor after: Yang Zhihong Inventor before: Deng Feng Inventor before: Wang Haiyan Inventor before: Zhou Shaoliang Inventor before: Mao Ailing Inventor before: Shen Jian Inventor before: Huang Guofang Inventor before: Yang Zhihong |
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