1、Modeling of Digital Protective Device According to IEC61850AbstractIEC 61850 is an international standard about substation constituted by the substation IEC TC57.It reflects the developments direction and automation tendency of automation, and arouses the widespread interest of the domestic and fore
2、ign power industry. The transformer is a core equipment in the substation its protection, measurement and control equipments are the main equipments of substation automation system. Therefore，it is significant for us to apply the IEC 61850 standard to the Digital transformers protection, measurement
3、 and control.The background, the domestic and foreign present situations, the significance and the content of IEC 61850 are introduced in this paper, the analysis of IEC 61850 standards modeling process are described. Firstly, based on the function free distribution and the assignment concept of IEC
4、 61850, the protection, measurement and the control unit are separated and the respective function is describe by the logical node. Secondly, according to the modeling approach and principle based on IEC 61850，the typical protection, measurement and the control logical nodes are taken as examples to
5、 complete modeling of logical nodes with UML. At last, the flow chart of the function realization is described and the flow of the function realization is discussed. In this foundation, the transformer differential protection IED is taken as an example to show the configuration process of its logica
6、l equipment and the logical node.Key words: IEC 61850；UML；IED；Object model；Logical node；Logical equipmentSubstation automation system by multiple subsystems is essentially composed of distributed control system, therefore layer in the transformer substationStill, the internal system through internal
7、 data communication, to realize the subsystems between subsystems and internal information exchange and sharing information, to reduce the substation second equipment configuration, and simplify the repeat of the subsystems of the interconnections, not only reduce repeated investment, and also to im
8、prove the security and reliability of the system as a whole.But, the actual circumstance of each transformer substation be respectively each product supplier in order to fight, usage dissimilarity of communication code. Almost each produce a company should the company all have a set of oneself of st
9、andard, cause in the whole system circulate of the code may attain several 10 kinds. Equipments cant share information, hard assurance of the consistency of data. This be problem in” automation isolated island”. This kind of phenomenon not only increment a great deal of correspondence agreement of c
10、ode conversion and equipments of repeated devotion, return will result in correspondence not dependable. This obviously cant satisfy a transformer substation automation inner part the information be accurate, quickly collections, processing with deliver of request. Therefore, our country of the tran
11、sformer substation automation be urgent demand 1 kind can and permit various correspondence agreement, exaltation product with each other operability, real realization have never sew correspondence of international of correspondence agreement1-2.The transformer substation automation deliver a code a
12、nd deliver a standardize of network, is realization the credibility be fast correspondence of assurance. correspondence agreement1-2.The transformer substation automation deliver a code and deliver a standardize of network, is realization the credibility be fast correspondence of assurance. 20 centu
13、ry the beginning of 90s, the international electro-techniques committee IEC(the Commission of the International Electro technical) be aware of to come from dissimilarity factory house of the electronics intelligence equipments IED demand a standard of the information connect, with realization equipm
14、ents of with each other operability(Interoperability).Is this, IEC two IEC TC57 of the technique committee and the IEC TC95 established a consociation work set, establishment” after electricity protection the equipments information connect standard namely IEC60870-5-103 standardThe institute for res
15、earch EPRI(the Research Institute of the Electric Power) of electric power science of the United States in 1990 beginning Mr. commonLetter system UCA(the Architecture of the Utility Communication) standard of establishment work, its purpose lie in provide aHave extensive adaptability of, the functio
16、n be strong of correspondence agreement, can make various IED pass usage should agreement realization with each other operation3.For avoiding appear two possibility conflict of standard, IEC decision with the UCA2.0 data model kimono duty is foundation, UCAOf research result bring into IEC standard,
17、 in the meantime absorb IEC60870-5-103 standard of implicit data model, establishment unify of world scope standard IEC61850, and in 1999 March put forward committee drafted plan edition.IEC 61850 be the correspondence network of transformer substation automation and the international standard of sy
18、stem. Establishment IEC 61850 main purposes is make dissimilarity manufacturer of the product has with each other operability and make these product drive expediently integration to go in a system.According to IEC 61850 of definition, with each other operability is come from same factory house or di
19、ssimilarity factory house of the IED(the Commission of the International Electrotechnic) exchange information and exactitude usage the information moderate operation of ability. If the of IED can carry on with each other operation, then constitute tofrom the IED of auto the , and sub- system of the
20、beggar system with adjust an of one degree center with each other operation possibility realization. With each other operability with information share and system integration is foundation of ice 61850 usages nowadays forerunner of the information technique was a transformer substation establishment
21、 unify of object model and correspondence connect, real meaning top the intelligence electronics of the realization transformer substation equipments of with each other the operability be the best solution that the transformer substation have never sew correspondence. IEC 61850 representative transf
22、ormer substation automation of future development direction, in fact necessarily will give transformer substation automation the level bring huge of push function.The transformer substation correspondence network is a conjunction the Niu of various intelligence electronics equipments inside the tran
23、sformer substation take, is the life vein of transformer substation automation, it of credibility and information deliver of the fast come to a decision system of can use sex. Therefore, research according to IEC 61850 of transformer substation correspondence network structure, to transformer substa
24、tion correspondence network of solid hour and credibility carry on analysis research and have importance of theories and reality meaning. 1.2 Topic backgroundIEC 61850 targets is formation a standard of the open type transformer substation automation and correspondence system, it make to come from d
25、issimilarity of the IED of the manufactory realization goodly and with each other operability, and ability orientation calculator and correspondence technique of fast development, thus exaltation system of credibility, decrease customer of investment and maintenance cost4.The object set up a mold te
26、chnique, UML(the Language of the Unified Modeling unify to set up mold language), XML(the Language of the extensible Markup can expand marking language) etc. forerunner technique of emergence for IEC 61850 of realization provide reality of foundation and condition. Conduct and actions new transforme
27、r substation correspondence network and system standard, IEC 61850 of research and application for exaltation our country transformer substation automation the profession whole level have importance of meaning. Our country transformer substation calculator supervision of market scale big take a post
28、 in world what nation, our country complete have ability should also in the IEC 61850 of research and usage the aspect obtain oneself of a place. 1.3 Domestic and international IEC 61850 of research and it development present condition Turn transformer substation correspondence research to involve I
29、EC61850 correspondence code according to the numeral of IEC61850 and according to process layer equipments numeral turn of transformer substation of research, numeral turn a transformer substation very the problem of core is a network structure and correspondence. Underneath difference from the IEC6
30、1850 standard and numeral turn a transformer substation correspondence both side to all say domestic and international research present condition.1.3.1 Abroad IEC 61850 of research and it development present conditionIEC 61850 from the beginning establishment be subjected to international top of ext
31、ensive concern. In the establishment the IEC 61850 processes, the United States Germany, Holland etc. national capital have demonstration engineering5, in order to verification standard, pass practice to promote standard of further perfect.1998, at Germany from FGH, VEW, ABB, ALSTOM and SIEMENS a fe
32、w company consociation establishment a demonstration item OCIS(the In Substations of the Open Communication), establishment this item of purpose BE:(1)Comparison and test IEC 61850 standard drafted plan and UCA2.0;(2)Vivid, possibility and effect of reexamination standard drafted plan;(3)To IEC stan
33、dard drafted plan introduction the knowledge of the privately owned;(4)The help standardize progress;(5)Sure of should standard match Europe market of demand;(6)The suggestion of the consideration VDEW6. 1.3.2 Domestic research present condition Abroad to IEC61850 standard carry on thorough research
34、 of in the meantime, local think factory and equipments manufacturer also at close concern IEC61850 standard of development, and devotion funds and technique open the exhibition related item of research work. Peking melt a section allied create the limited company of electric power science and techn
35、ology F through development according to IEC61850 international standard of in general use network correspondence terrace of electric power automation and industry control correspondence agreement software package, the product passed the consistency of the KEMA company test, and with Hue east electr
36、icity tube the bureau adjust one degree center cooperation, at 64 K numeral passage top carried on adoption the IEC61850 be international standard agreement deliver achievement Cape wide area network data experiment. Local factory family possessions in succession devotion arrive the development of r
37、elated product in, IEC61850 standard at local of expansion application opportune moment gradual mature. But, local currently of research the point basically and all put at according to IEC61850 correspondence of development up, to transformer substation allocation of research return few check in, al
38、though concerning allocation machine of research have already see in some article, concern allocation method and allocation document of research still rare check in, hope in this aspect local related organization ability hold firmly, catch up international current.1.4 The main work of this thesis(1)
39、Detailed reading and analysis IEC 61850 of Chinese-English originality text file data, thorough comprehension IEC 61850 of thought essence. In the comprehension IEC 61850 standard system structure of foundation up, point research the IEC be 61850 main characteristics, as to its the target content ca
40、rried on more thorough of analysis. Analysis IEC 61850 of technique core contents, include: Face to the information layering of object and set up a mold, abstract correspondence service pick up a people ACSI, particular correspondence service connect a people SCSM, system and item management etc. co
41、ntents; (2)Oneself acquaint with first and control UML to unify to set up mold language, and as to its carry on introduction, also will set up object mold process to carry on in the meantime related description. (3)With numeral type transformer protection equip for example, the object model, data ob
42、ject that is from the function definition, resolve and allotment, equipments definition etc. make use of the IEC61850 provide of information model and JAVA plait the distance language carry on key and the object design(lay particular emphasis on of this thesis) establishment intelligence electronics
43、 the object model of the equipments.The introduction of chapter 2 IEC61850 standard2.1 The contents introduction of the IEC618502.1.1 Standard of main constitute partThe IEC61850 is an International Electro technical Commission 57 technique committee 10th, 11, the concerning transformer substation a
44、utomation of 12 establishment correspondence net Shako and system of standard. The purpose of the establishment IEC61850 want to carry out a dissimilarity of manufacturers product with each other operability. Is this, should agreement adoption from crest the way for get down carry on a system layeri
45、ng, function definition to the transformer substation automation and the object set up a mold, and to consistency examination make detailed of definition. IEC 61850 include to face to object of standard, correspondence network function request, connect and reflect to shoot, system and item managemen
46、t, consistency test etc. be various detailed contents. Concrete contents as follows7-15:61850-1 basic principle, include the introduction of IEC61850 with all looks.61850-2 technical term.61850-3 basic request. Include a quality request(credibility, can the maintenance, system can use sex, easy and
47、convenient, safety), environment condition, assistance service, other standard and norm.61850-4 system and item management. Include an engineering request(parameter classification, engineering tool, document), system usage period(the product edition, engineering hand over to connect, the engineering
48、 hand over to connect behind of support), quality control.(responsibility, test equipment, typical model test, system test, factory acceptance, the spot acceptance)61850-5 correspond by letter function and equipments request. Include the path(the logical nodes of the access of) of logic node, logic
49、correspondence network, correspondence information slice PICOM(the information for communication of the Piece of) concept, function of definition.61850-6 structure language of the transformer substation automation. Include to equip and the form language of the system attribute description.61850-7 transformer substation basic correspondence structure and Chui electricity equipments.61850-7-1 principle and mo
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