CN101719696B - Centralized bus protection device and method applied to digitized transformer station - Google Patents
Centralized bus protection device and method applied to digitized transformer station Download PDFInfo
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
The invention provides centralized bus protection device and method applied to a digitized transformer station, which face to the digitized transformer station, follows an IEC 61850 standard and protects a bus in a transformer station. The device supports XML and can be configured by adopting various means and tools and is more convenient to exchange and share information in different systems and platforms, the standard configuration language SCL of the transformer station is adopted to carry out the related communication configuration of the device, and configured tools which conform to the IEC 61850 in any factories can be identified. The novel centralized bus protection device of the digitized transformer station is digitized and open, has a simple secondary circuit, does not need to consider the saturation of a mutual inductor, is easy to maintain and convenient to expand.
Description
Technical field:
The invention belongs to power system automatic field, be specifically related to a kind of centralized protection equipment for busbar and method thereof of the data sharing digital transformer substation based on IEC61850.
Background technology:
Digital transformer substation and correlation technique thereof are the hot issues of power system automatic field in recent years, are computer technology and network technology, and the result of the electric power system development of demand.IEC61850 standard, multi-functional IED (intelligent electronic device) and communication network are the research contents of its emphasis.
To be TC57 working group of International Electrotechnical Commission summing up on the basis of communication protocol in the past, for what realize formulating from the seamless communication between the equipment of different manufacturers IEC 61850 standards (substation communication network and system standard).Its core content comprise with the function be the basis model with communicate by letter and configuration management.Wherein, model is OO; Communication be abstract, do not rely on concrete network and agreement; Configuration then adopts SCL (transformer station's configuration language) to manage.
The analog quantity of traditional transformer station and switching value data, signal derive from traditional voltage instrument transformer, current transformer and switching signal amount.How much being confirmed by the function of equipment of signal, signal processing function are realized that by microcomputer collection data acquisition, analytical calculation, result are output in one.
Along with the day by day popularization of digital mutual inductor with the comprehensive automation system of transformer substation of total digitalization; The picker of analog signal and digital signal is distributed in different equipment with the user; Data can realize sharing inside and outside transformer station through network; This makes that traditional image data all is analog signal and switching value, and the protection equipment of the incorporate transformer station of signal acquisition process can't be applicable to the digital transformer substation of IEC61850 standard.
Summary of the invention:
The object of the invention is; Provide a kind of towards digital transformer substation; Employing is the basis with the IEC61850 standard; Can realize the device and method of the centralized bus protection function in the digital transformer substation, it has digitlization, need not to consider that instrument transformer is saturated, secondary circuit simple, open, be easy to advantages such as maintenance and expansion are convenient.
For realizing above-mentioned purpose; The present invention provides a kind of centralized protection equipment for busbar that is applied to digital transformer substation; It is characterized in that: said protection equipment for busbar comprises hardware unit and software processing system; Said hardware unit adopts the flush bonding processor unit, and multiple CPU parallel processing technology provides dual gigabit ethernet interface and RS232, RS485/422 interface; Said software processing system comprises the Data Receiving processing module; Bus protection logic module, communication processing module and system management module; Said Data Receiving processing module receives the data message based on the analog quantity and the switching value of IEC61850 standard through Ethernet interface through network; And said data message carried out analyzing and processing, for said bus protection logic module provides the data support; Said bus protection logic module is rationally judged the data that said Data Receiving processing module provides, and is assigned control command through network to transformer substation bus equipment according to the requirement of bus protection logic; The communication part of module management protection equipment for busbar is handled in said communication, for said dual gigabit ethernet interface and RS232, RS485/422 interface provide the communication support; Said system management module guarantees the normal operation of protection equipment for busbar, for protection equipment for busbar provides maintenance.
An a kind of optimal technical scheme that is applied to the centralized protection equipment for busbar of digital transformer substation of the present invention is: said communication processing module is the basis with IEC61850 standard the 5th part, structure information and traffic model storehouse.
A kind of another optimal technical scheme that is applied to the centralized protection equipment for busbar of digital transformer substation of the present invention is: said communication processing module adopts transformer station's configuration language, and uses unified instrument that said software processing system is configured and manages.
An a kind of optimal technical scheme again that is applied to the centralized protection equipment for busbar of digital transforming plant protecting of the present invention is: said bus protection data processing module is to carrying out the Unified Treatment record from the data at a plurality of intervals in the station; Adopt centralized bus protection logic, the process layer is carried out centralized control.
The present invention is a kind of be applied to digital transforming plant protecting centralized protection equipment for busbar one more preferably technical scheme be: the secondary circuit simplicity of design of said protection equipment for busbar; Need not to consider that instrument transformer is saturated, bus protection all realizes through GOOSE with the communication of interior other protections in station and process layer.
A kind of method that is applied to the centralized protection equipment for busbar of digital transformer substation of the present invention, the step of said method is following:
Step 1: the system management module of centralized protection equipment for busbar is after the protection equipment for busbar operation; Start sampling interrupt task, protection logical calculated task, station level communication task, man-machine interface task, system clock task; And above-mentioned task carried out maintenance management; In above-mentioned arbitrary task locked back taking place and start house dog, restarts protection equipment for busbar.
Step 2: the Data Receiving processing module of centralized protection equipment for busbar receives based on the substation communication network of IEC61850-9-1 or IEC61850-9-2 standard and the data message of system through Ethernet interface; The data message is carried out analyzing and processing; Write down the normal abnormal information of Real-time and Dynamic change procedure, analysis result and the data of the data of being gathered simultaneously, for the bus protection logic module provides the data support;
Step 3: the bus protection logic module of centralized protection equipment for busbar is according to the requirement of bus protection logic, and the running state data message information of the bus of protecting that the data receiving processing module is provided is rationally judged, assigns control command;
The optimal technical scheme of method that the present invention is a kind of to be applied to the centralized protection equipment for busbar of digital transformer substation is: said step 2 kind data processing module comprises the analyzing and processing that the data message of being gathered carries out: the validity of data is judged; Detect whether packet loss takes place; Unusual synchronously; Communicating interrupt, current and voltage data is uneven or poor stream is out-of-limit.
Another optimal technical scheme of method that the present invention is a kind of to be applied to the centralized protection equipment for busbar of digital transformer substation is: the bus protection logic that the bus protection module in the said step 3 adopts comprises: the bus differential protecting logic; Female charge protection logic that joins, female overcurrent protection logic, dead band protection logic, breaker fail protection logic of joining.
The preferred technical scheme of method that the present invention is a kind of to be applied to the centralized protection equipment for busbar of digital transformer substation is: ratio-restrained characteristic is adopted in the realization of said bus differential protecting, need not to consider the saturated influence to sampled data of instrument transformer.
Beneficial effect of the present invention: adopt apparatus of the present invention and method to be applied to the digital transformer substation that is the basis with the IEC61850 standard; Can realize the centralized bus protection function in the digital transformer substation, have digitlization, need not to consider that instrument transformer is saturated, secondary circuit simple, open, be easy to maintenance and expansion advantage easily.
Description of drawings:
Fig. 1 is the wiring schematic diagram of apparatus of the present invention;
Fig. 2 is the hardware configuration sketch map of apparatus of the present invention;
Fig. 3 is the function design module structural representation of apparatus of the present invention;
Fig. 4 is apparatus of the present invention data processing module workflow sketch map;
Fig. 5 is apparatus of the present invention bus protection logic module workflow sketch map;
Fig. 6 is apparatus of the present invention system management module workflow sketch map.
Embodiment:
As depicted in figs. 1 and 2, the centralized protection equipment for busbar that is applied to digital transformer substation of the present invention comprises: centralized protection equipment for busbar hardware and centralized protection equipment for busbar software processing system.Centralized protection equipment for busbar hardware using flush bonding processor unit, multiple CPU parallel processing technology provides dual gigabit ethernet interface and RS232, RS485/422 interface.
As shown in Figure 3, centralized protection equipment for busbar software processing system structure is abideed by the logical node design of IEC61850 standard fully, and it comprises: Data Receiving processing module, bus protection logic module, communication processing module and system management module.As shown in Figure 4, the Data Receiving processing module receives the data message based on the analog quantity and the switching value of IEC61850 standard through Ethernet interface through network, and the data message is carried out analyzing and processing, for the bus protection logic module provides the data support.As shown in Figure 5, the bus protection logic module is rationally judged the data that said Data Receiving processing module provides, and is assigned control command through network to transformer substation bus equipment according to the requirement of bus protection logic.This bus protection logic comprises: bus differential protecting, female charge protection that joins, female overcurrent protection, dead band protection, breaker fail protection of joining.The communication part of module management protection equipment for busbar is handled in communication, for dual gigabit ethernet interface and RS232, RS485/422 interface provide the communication support.The communication processing module is the basis with IEC61850 standard the 5th part, and structure information and traffic model storehouse are adopted transformer station's configuration language, and used unified instrument that software processing system is configured and manages, and satisfy whole communicating requirements of IEC61850 standard.As shown in Figure 6, system management module guarantees the normal operation of protection equipment for busbar, for protection equipment for busbar provides maintenance.
The centralized protection equipment for busbar software of the present invention is realized based on embedded real-time operating system; IEC61850 standard, the centralized bus protection function of digital transformer substation are combined; The bus protection function of digital transformer substation is provided, and structure is abideed by the logical node design of IEC61850 standard fully, adopts OO dynamic modeling technology; Built-in interrelated logic node, support function freely distributes.
Bus protection data processing module of the present invention adopts centralized bus protection logic to carrying out the Unified Treatment record from the data at a plurality of intervals in the station, and the process layer is carried out centralized control.The secondary circuit simplicity of design of centralized protection equipment for busbar need not to consider that instrument transformer is saturated.
The centralized protection equipment for busbar of digital transformer substation of the present invention adopts OO dynamic modeling technology, and support function freely distributes, and satisfies whole communicating requirements of IEC61850 standard.And be furnished with the unified through engineering approaches system integration instrument that meets the IEC61850 standard, and resolve, generate the SCL configuration file, support off-line, Configuration Online.The configuration information static state that equipment can provide according to the IED configuration file that instrument generates is set up traffic model.Fully support the SCSM protocol stack: TCP/IP, UDP, IEEE802.3 etc.; Adopt the MMS stack of independent development, can realize based on the unified configuration of whole transformer substation systems and GPS to the time.
The method that the present invention is applied to the centralized protection equipment for busbar of digital transformer substation comprises the steps:
Step 1: the system management module of centralized protection equipment for busbar is after the protection equipment for busbar operation; Start sampling interrupt task, protection logical calculated task, station level communication task, man-machine interface task, system clock task; And above-mentioned task carried out maintenance management; In above-mentioned arbitrary task locked back taking place and start house dog, restarts protection equipment for busbar.
Step 2: the Data Receiving processing module of centralized protection equipment for busbar receives based on the substation communication network of IEC61850-9-1 or IEC61850-9-2 standard and the data message of system through Ethernet interface; The data message being carried out the validity of data judges; Detect whether packet loss takes place; Synchronously unusually, communicating interrupt, the out-of-limit grade of the uneven perhaps poor stream of current and voltage data analyzed processing; Write down the normal abnormal information of Real-time and Dynamic change procedure, analysis result and the data of the data of being gathered simultaneously, for the bus protection logic module provides the data support.
Step 3: the bus protection logic module of centralized protection equipment for busbar is according to the bus differential protecting logic; Female charge protection logic that joins; The requirement of bus protection logics such as female couplet overcurrent protection logic, dead band protection logic, breaker fail protection logic is carried out logic analysis and judgement rationally to the running state data message information of the bus of protecting that the data receiving processing module provides, and assigns control command.Ratio-restrained characteristic is adopted in the realization of bus differential protecting.
The description that the foregoing description carries out the present invention is not the restriction to protection range of the present invention, and those skilled in the art carry out suitable replacement or revise under not departing from the scope of the present invention will be conspicuous, all belong within the protection range of the present invention.
Claims (9)
1. centralized protection equipment for busbar that is applied to digital transformer substation; It is characterized in that: said protection equipment for busbar comprises hardware unit and software processing system; Said hardware unit adopts the flush bonding processor unit; Multiple CPU parallel processing technology provides dual gigabit ethernet interface and RS232, RS485/422 interface; Said software processing system comprises Data Receiving processing module, bus protection logic module, communication processing module and system management module; Said Data Receiving processing module receives the data message based on the analog quantity and the switching value of IEC61850 standard through Ethernet interface through network; And said data message carried out analyzing and processing, for said bus protection logic module provides the data support; Said bus protection logic module is rationally judged the data that said Data Receiving processing module provides, and is assigned control command through network to transformer substation bus equipment according to the requirement of bus protection logic; The communication part of module management protection equipment for busbar is handled in said communication, for said dual gigabit ethernet interface and RS232, RS485/422 interface provide the communication support; Said system management module guarantees the normal operation of protection equipment for busbar, for protection equipment for busbar provides maintenance.
2. the centralized protection equipment for busbar of digital transformer substation according to claim 1, it is characterized in that: said communication processing module is the basis with IEC61850 standard the 5th part, structure information and traffic model storehouse.
3. the centralized protection equipment for busbar of digital transformer substation according to claim 1 and 2 is characterized in that: said communication processing module adopts transformer station's configuration language, and uses unified instrument that said software processing system is configured and manages.
4. the centralized protection equipment for busbar of digital transformer substation according to claim 1; It is characterized in that: said bus protection logic module is to carrying out the Unified Treatment record from the data at a plurality of intervals in the station; Adopt centralized bus protection logic, the process layer is carried out centralized control.
5. the centralized protection equipment for busbar of digital transformer substation according to claim 1; It is characterized in that: the secondary circuit simplicity of design of said protection equipment for busbar; Need not to consider that instrument transformer is saturated, bus protection all realizes through GOOSE with the communication of interior other protections in station and process layer.
6. method that is applied to the centralized protection equipment for busbar of digital transformer substation, it is characterized in that: the step of said method is following:
Step 1: the system management module of centralized protection equipment for busbar is after the protection equipment for busbar operation; Start sampling interrupt task, protection logical calculated task, station level communication task, man-machine interface task, system clock task; And above-mentioned task carried out maintenance management; In above-mentioned arbitrary task locked back taking place and start house dog, restarts protection equipment for busbar;
Step 2: the Data Receiving processing module of centralized protection equipment for busbar receives based on the substation communication network of IEC61850-9-1 or IEC61850-9-2 standard and the data message of system through Ethernet interface; The data message is carried out analyzing and processing; Write down the normal abnormal information of Real-time and Dynamic change procedure, analysis result and the data of the data of being gathered simultaneously, for the bus protection logic module provides the data support;
Step 3: the bus protection logic module of centralized protection equipment for busbar is according to the requirement of bus protection logic, and the running state data message information of the bus of protecting that the data receiving processing module is provided is rationally judged, assigns control command.
7. a kind of method that is applied to the centralized protection equipment for busbar of digital transformer substation as claimed in claim 6; It is characterized in that: the Data Receiving processing module in the said step 2 comprises the analyzing and processing that the data message of being gathered carries out: the validity of data is judged; Detect whether packet loss takes place; Unusual synchronously, communicating interrupt, current and voltage data is uneven or poor stream is out-of-limit.
8. a kind of method that is applied to the centralized protection equipment for busbar of digital transformer substation as claimed in claim 6 is characterized in that: the bus protection logic that the bus protection logic module in the said step 3 adopts comprises: bus differential protecting logic, female charge protection logic, female overcurrent protection logic, dead band protection logic, breaker fail protection logic of joining of joining.
9. like the said a kind of method that is applied to the centralized protection equipment for busbar of digital transformer substation of claim 8, it is characterized in that: ratio-restrained characteristic is adopted in the realization of said bus differential protecting, need not to consider the saturated influence to sampled data of instrument transformer.
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| CN2009102434095A CN101719696B (en) | 2009-12-21 | 2009-12-21 | Centralized bus protection device and method applied to digitized transformer station |
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| CN2009102434095A CN101719696B (en) | 2009-12-21 | 2009-12-21 | Centralized bus protection device and method applied to digitized transformer station |
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| CN101719696B true CN101719696B (en) | 2012-07-04 |
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| CN102830295B (en) * | 2011-06-15 | 2014-12-31 | 上海电力通信有限公司 | Detecting system and detecting method of digital transformer substation protecting loop |
| CN102565585B (en) * | 2012-01-10 | 2014-11-19 | 上海电力学院 | Method for building intelligent substation relay protection cooperation simulation testing system |
| CN102570618A (en) * | 2012-02-24 | 2012-07-11 | 安徽省电力公司芜湖供电公司 | Double-specification monitoring system for transformer station and method therefor |
| CN102882188A (en) * | 2012-08-10 | 2013-01-16 | 国电南瑞科技股份有限公司 | Centralized digital 35kV single-bus unit protection measurement and control system for 500kv substation |
| CN103872638A (en) * | 2013-12-06 | 2014-06-18 | 云南电网公司大理供电局 | Method for realizing substation-domain centralized protection measuring and control device in substation |
| CN103995925A (en) * | 2014-05-05 | 2014-08-20 | 中国南方电网有限责任公司电网技术研究中心 | Software system of analog simulation busbar protection devices |
| CN105024356B (en) * | 2014-06-19 | 2018-05-29 | 许继电气股份有限公司 | A kind of 35kV and following voltage class ratiometric dynamic formula bus bar protecting method |
| CN105119248A (en) * | 2015-10-08 | 2015-12-02 | 南京南瑞继保电气有限公司 | Centralized bus-bar protection extension access capability method and device |
| CN106253239B (en) * | 2016-08-15 | 2018-06-22 | 南京国电南自电网自动化有限公司 | Decentralized bus protection configuration method based on MapReduce frameworks |
| CN108073785B (en) * | 2017-12-20 | 2021-07-06 | 烟台大学文经学院 | Logic calculation method of substation automation system |
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| CN101499649A (en) * | 2008-05-19 | 2009-08-05 | 河南省电力公司 | Networking bus bar protecting method based on GOOSE mode |
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