CN101847865A - Electric network relay protection and fault analysis system - Google Patents
Electric network relay protection and fault analysis system Download PDFInfo
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- CN101847865A CN101847865A CN 201010171759 CN201010171759A CN101847865A CN 101847865 A CN101847865 A CN 101847865A CN 201010171759 CN201010171759 CN 201010171759 CN 201010171759 A CN201010171759 A CN 201010171759A CN 101847865 A CN101847865 A CN 101847865A
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Abstract
The invention discloses an electric network relay protection and fault analysis system which is characterized in that an information network is formed by branch station systems, substation systems and a main station system, wherein the branch station systems are positioned in a transformer substation; each branch station system is connected to the substation systems through Ethernet, an SDH (Synchronous Digital Hierarchy) digital network or in the mode of special lines or carrier waves; the same branch substation system can be connected to a plurality of levels of substation systems; the main station system is positioned in a dispatching center; each substation system is connected with the main station system through an electric power dispatch data network; the information network monitors the operation conditions of an electric network through information transmitted by each intelligent device in the transformer substation, analyzes faults of the electric network according to the obtained information, and provides relay protection. The electric network relay protection and fault analysis system is a support system for relay protection operation and management as well as an information support, auxiliary analysis and decision system.
Description
Technical field
The present invention relates to electric grid relay protection and trouble analysis system.
Background technology
Along with the continuous expansion of scale of power, operational mode becomes increasingly complex, and the operation of relaying protection and action situation also increase the influence of system safety thereupon.On the other hand along with the raising of protective relaying device digitized degree, in operation of power networks and the time protection transmission of Information amount that breaks down increase greatly, the amount of information that dispatching of power netwoks operations staff who brings therefrom and the required concern of protection professional are handled also is doubled and redoubled, and objectively increased the difficulty that the operation of power networks personnel judge nature of occurence, processing accident; Recovery system moves needed time lengthening.For dispatching of power netwoks; during fault in electric power system is broken down especially in a big way, the dispatching of power netwoks operations staff will be depended on the judgement and the analysis of the information such as action behavior of the action situation of trend distribution situation, switch of topological structure, system voltage and the frequency of the electrical network of grasping at that time and system and protective device on sizable degree to the process of the processing procedure of the system failure and system restoration.Therefore, when electrical network has an accident, grasping the information of fault effectively timely, is an important technology difficult problem of carrying out accident judgement, processing and recovery system, and this technical barrier fails to be well solved so far.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point, a kind of electric grid relay protection and trouble analysis system being provided, so that in time grasp the information of fault effectively when electrical network has an accident, judges, handles and recover thereby carry out accident.
Technical solution problem of the present invention adopts following technical scheme.
The design feature of electric grid relay protection of the present invention and trouble analysis system is by substation system, substation system and main station system configuration information network; Wherein:
Described substation system is positioned at transformer station, and each substation system is connected to the substation system by the mode of Ethernet, SDH digital network or special line and carrier wave, and same substation system can be connected to a plurality of grades of other substation systems;
Described main station system is positioned at the control centre, and each substation system is connected with main station system by Electric Power Dispatching Data Network;
Described main station system, substation system and each substation system distribute radially, all data collect in main station system by network in the system, each substation system can directly obtain all substation system data, also can obtain the indirectly connected substation system data related with it by main station system;
The information monitoring operation of power networks situation that described information network transmits by each intelligent apparatus in the transformer station, and by the information analysis electric network fault that obtains and relaying protection is provided.
The design feature of electric grid relay protection of the present invention and trouble analysis system also is:
Described main station system calls substation system with various configuration file generation model description document by each substation system is carried out parameter configuration automatically.
The a plurality of front end processors of configuration can form dual backup to the communication port of arbitrary transformer station on identical or different front end processor between described main station system and substation system, and system can adjust and switches communication channels automatically.
In described information network, adopt IEC61850 communication system system as the information exchange between systems system.
In described system, set up the IEC61970 model system.
Each intelligent apparatus includes microcomputer protecting device, fault wave recording device in the described transformer station.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, main station system only need be configured the parameter of substation passage among the present invention, can call substation various configuration file generation model description document automatically, for example SCD describes, ICD describes, ITB describes, M2I describes, even SVG figure, generate the master station communication information model automatically by these description document, thereby realize communicating by letter automatically with substation system or substation system, reach the non-maintaining of main website.Because the factor of scheduling classification and equipment administration, this just simplify to a great extent and standard the maintenance and management work of main website, help the distribution enforcement of system's construction.
2, for the message transmitting procedure of unified transformer station from the substation to the main website; the otherness of shielding different agreement stack; system of the present invention can introduce up-to-date international standard IEC61850; the mapping of the access of protective device, information translation, information makes IEC61850 become the major technique system of information exchange between native system in realizing standing.
3, the present invention can be by introducing the IEC61970 model system, system is not only had in mind in present access to substation secondary information, more can look to the future and use and to the fusion and the extension of other system, with unified once, secondary model supports application and development, sets up more complicated application function, realize the standardization of system applies interface, support normalized application integration.
4, the modeling tool of the present invention in concrete enforcement can be based on IEC61970-CIM, and standards such as SVG to support first and second integrated modeling, merge the advantage of graphical modeling in the past, carries out the support of model and figure towards first and second CIM model of main station system.Not only have the incorporate demonstration of artwork and editor's means, and fully used the editing component of system platform at the CIM model, with modes such as customizable tree type, hypertext, figure never ipsilateral show and edit model object and relation thereof.
5, system of the present invention supporting platform has adopted standards such as IEC61850, IEC61970, XML, SVG, not only data, services adopts standardized CIM, and platform provides powerful support to using assembly, for example graphical display, object retrieval, computational analysis etc., complete support the integrated and secondary development of system applies function.Because the system platform support not only relates to secondary information, therefore the also complete primary information model that comprised has also promoted the data sharing and the application integration of control centre to a certain extent.
Description of drawings
Fig. 1 acts on schematic diagram for each standard among the present invention in platform.
Fig. 2 constitutes schematic diagram for system of the present invention.
Below pass through embodiment, and the invention will be further described in conjunction with the accompanying drawings.
Embodiment
Referring to Fig. 1, Fig. 2, in the present embodiment by each substation system, substation system and main station system configuration information network; Wherein:
Substation system is positioned at transformer station, and each substation system is connected to the substation system by the mode of Ethernet, SDH digital network or special line and carrier wave, and same substation system can be connected to a plurality of grades of other substation systems; Main station system is positioned at the control centre, and each substation system is connected with main station system by Electric Power Dispatching Data Network; Main station system, substation system and each substation system distribute radially, all data collect in main station system by network in the system, each substation system can directly obtain all substation system data, also can obtain the indirectly connected substation system data related with it by main station system; The information monitoring operation of power networks situation that information network transmits by each intelligent apparatus in the transformer station, and by the information analysis electric network fault that obtains and relaying protection is provided.
In concrete the enforcement, the setting of corresponding system comprises:
1, introduces the IEC61850 communication system
Arrive the message transmitting procedure of main website to the substation for unified transformer station; the otherness of shielding different agreement stack; system introduces international standard IEC61850; the mapping of the access of protective device, information translation, information makes IEC61850 become the major technique system of information exchange between native system in realizing standing.
2, introduce the IEC61970 model system
System only is not conceived to present access to substation secondary information, but consider following application, and system is to the fusion and the extension of other system, for unified once, secondary model supports application and development, sets up complicated application function; On the other hand, also, support normalized application integration, in native system, introduce the model system of IEC61970-CIM in order to realize the standardization of system applies interface.
3, support the modeling tool of first and second integrated model
The modeling tool of system is based on IEC61970-CIM, and standards such as SVG are supported first and second integrated modeling, and has merged the advantage of graphical modeling in the past, carries out the support of model and figure towards first and second CIM model of main station system.Not only have the incorporate demonstration of artwork and editor's means, and fully used the editing component of system platform at the CIM model, with modes such as customizable tree type, hypertext, figure never ipsilateral show and edit model object and relation thereof.
4, solve the transition method of traditional protection connecting system
System adopts some description document to reach the standardization of protection connecting system, comprises that the ICD of standard describes (protective device information model), ITB describes (protective device information point table), M2I description (the information electricity is in the correspondence of information semantic) etc.Because these normalized descriptions are all according to the IEC61850 system; therefore the normalized method of this realization has in fact been represented by a kind of feasible program of traditional protection device to the transition of IEC61850 communication system, and what realized is a kind of encapsulation and mapping towards the IEC61850 information model to the traditional protection device information.
5, support non-maintaining distributed management and the maintenance mechanism of main website
System is that the substation is a big outstanding characteristic of native system to the non-maintaining of main website access, main website only need be configured the parameter of substation passage, can call substation various configuration file generation model description document automatically, for example SCD describes, ICD describes, ITB describes, M2I describes, even SVG figure, generate the master station communication information model automatically by these description document, thereby realize communicating by letter automatically, reach the non-maintaining of main website with substation (substation).Because the factor of scheduling classification and equipment administration, this just simplify to a great extent and standard the maintenance and management work of main website, help the distribution enforcement of system's construction.
6, the system's support and the integrated platform that have international standard
System's supporting platform has adopted standards such as IEC61850, IEC61970, XML, SVG, not only data, services adopts standardized CIM, and platform provides powerful support to using assembly, for example graphical display, object retrieval, computational analysis etc., complete support the integrated and secondary development of system applies function.Because the system platform support not only relates to secondary information, therefore the also complete primary information model that comprised has also promoted the data sharing and the application integration of control centre to a certain extent.
7, customizable electric parameters generates and Display Technique
In the supporting platform of system,, provide a kind of mode of calculation template customization in order to use analysis, calculating and demonstration to recorder data.The process of customization is to calculate based on the analysis data of record ripple basic data again, forms the process of new electric parameters, has comprised time domain and frequency domain computing commonly used.And system's supporting platform also provides the universal display method at the wave mode data, can be made up freely by application program.
8, the net method for diagnosing faults that concerns based on a secondary model
For application being provided the support of electric network failure diagnosis method, system's supporting platform comprises the diagnostic calculation assembly that can constantly expand.Because system has model of complete electrical network and secondary model, and has set up first and second relational model, therefore can support comparatively advanced electric network failure diagnosis method.
9, the information automatic Synthesis technology of electric network fault
For the efficient of raising system to fault management; system provides the technology of fault message automatic Synthesis; can be with the various information of separating originally; for example protect outlet information, switch trip information, record ripple log-on message etc., the data model of setting up based on native system; carry out the logic analysis of intelligence; relevant information is gathered in groups, provide simple report, make things convenient for operations staff's identification and further analysis and management.
10, multichannel, how preposition passage back up and load-balancing technique
Native system has made full use of the advantage of data dispatching net in the face of the technical development of data dispatching net, has adopted multiple technologies such as multichannel, how preposition, preposition load balancing, the backup of passage combination in any on the communication reliability of main station system and substation system.Promptly dispose a plurality of front end processors, can form dual backup to the communication port of arbitrary transformer station on identical or different front end processor, system can adjust and switches communication channels automatically according to load, communication conditions etc.
Claims (6)
1. electric grid relay protection and trouble analysis system is characterized in that by substation system, substation system and main station system configuration information network; Wherein:
Described substation system is positioned at transformer station, and each substation system is connected to the substation system by the mode of Ethernet, SDH digital network or special line and carrier wave, and same substation system can be connected to a plurality of grades of other substation systems;
Described main station system is positioned at the control centre, and each substation system is connected with main station system by Electric Power Dispatching Data Network;
Described main station system, substation system and each substation system distribute radially, all data collect in main station system by network in the system, each substation system can directly obtain all substation system data, also can obtain the indirectly connected substation system data related with it by main station system;
The information monitoring operation of power networks situation that described information network transmits by each intelligent apparatus in the transformer station, and by the information analysis electric network fault that obtains and relaying protection is provided.
2. electric grid relay protection according to claim 1 and trouble analysis system is characterized in that described main station system by each substation system is carried out parameter configuration, call substation system with various configuration file generation model description document automatically.
3. electric grid relay protection according to claim 1 and trouble analysis system; it is characterized in that a plurality of front end processors of configuration between described main station system and substation system; communication port to arbitrary transformer station can form dual backup on identical or different front end processor, system can adjust and switches communication channels automatically.
4. electric grid relay protection according to claim 1 and trouble analysis system is characterized in that in described information network, adopt IEC61850 communication system system as the information exchange between systems system.
5. electric grid relay protection according to claim 1 and trouble analysis system is characterized in that setting up the IEC61970 model system in described system.
6. electric grid relay protection according to claim 1 and trouble analysis system is characterized in that each intelligent apparatus includes microcomputer protecting device, fault wave recording device in the described transformer station.
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| CN 201010171759 CN101847865A (en) | 2010-05-06 | 2010-05-06 | Electric network relay protection and fault analysis system |
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| CN 201010171759 CN101847865A (en) | 2010-05-06 | 2010-05-06 | Electric network relay protection and fault analysis system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102377246A (en) * | 2011-12-01 | 2012-03-14 | 国电南京自动化股份有限公司 | Graphic instantiation method based on IEC61850 fault analysis system |
| CN104063807A (en) * | 2014-06-26 | 2014-09-24 | 国家电网公司 | Regional grid failure assistant decision method |
| CN106899001A (en) * | 2017-02-15 | 2017-06-27 | 许继集团有限公司 | A kind of intelligent substation secondary N in-one devices |
| CN107453482A (en) * | 2017-08-22 | 2017-12-08 | 益和电气集团股份有限公司 | One seed stations communication manager and power network dispatching system |
| CN110086211A (en) * | 2019-05-06 | 2019-08-02 | 国家电网公司东北分部 | High frequency centralized control method suitable for extensive AC-DC hybrid power grid |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377246A (en) * | 2011-12-01 | 2012-03-14 | 国电南京自动化股份有限公司 | Graphic instantiation method based on IEC61850 fault analysis system |
| CN102377246B (en) * | 2011-12-01 | 2014-05-07 | 国电南京自动化股份有限公司 | Graphic instantiation method based on IEC61850 fault analysis system |
| CN104063807A (en) * | 2014-06-26 | 2014-09-24 | 国家电网公司 | Regional grid failure assistant decision method |
| CN106899001A (en) * | 2017-02-15 | 2017-06-27 | 许继集团有限公司 | A kind of intelligent substation secondary N in-one devices |
| CN107453482A (en) * | 2017-08-22 | 2017-12-08 | 益和电气集团股份有限公司 | One seed stations communication manager and power network dispatching system |
| CN110086211A (en) * | 2019-05-06 | 2019-08-02 | 国家电网公司东北分部 | High frequency centralized control method suitable for extensive AC-DC hybrid power grid |
| CN110086211B (en) * | 2019-05-06 | 2021-04-30 | 国家电网公司东北分部 | High-frequency centralized control method suitable for large-scale alternating current-direct current hybrid power grid |
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Application publication date: 20100929 |