CN101706773B - Method for realizing fast and automatic modeling of transformer substation IEC 61850 by adopting XML information recombination - Google Patents
Method for realizing fast and automatic modeling of transformer substation IEC 61850 by adopting XML information recombination Download PDFInfo
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Abstract
The invention provides a method for realizing fast and automatic modeling of a transformer substation IEC 61850 by adopting XML information recombination, which is applied to IED modeling of space layers in a digital transformer substation and a traditional transformer substation by adopting IEC 61850 communication. The method comprises the following steps of: recombining the IED information by adopting XML, and providing an IED information standardization interface; editing and setting the standardized XML files; loading an embedded minimum model which accords to the IEC61850 standard; appointing an sAddr information format in advance, automatically adding sAddr information and leading out an ICD model file; analyzing the led-out ICD model file by the IED, and automatically extracting the sAddr information, and automatically mapping model leafage nodes to a real-time database according to the sAddr information; and enabling the information of the real-time database to normally communicate with station control layer equipment by the IED through adopting an IEC61850 protocol. The model collocation can be set by engineering personnel according to actual engineering. Therefore, the invention greatly shortens the time for generating the IEC61850 model, improves the efficiency of production and regulation and is convenient for 61850 engineered actualization and generalization.
Description
Technical field
The present invention relates to bay device ICD (the intelligent electronic device ability description that digital transformer substation and traditional transformer station adopt the communication of IEC61850 stipulations, hereinafter to be referred as ICD) the model file generation technique, the implementation method of automatic modeling is provided, particularly provide and utilized sAddr (short address, hereinafter to be referred as sAddr) implementation method of wall IED (intelligent electronic device is hereinafter to be referred as IED) real-time data base in the automatic mapping model of information and digital transformer substation and the traditional transformer station.
Background technology
On the basis of the TC57 of International Electrotechnical Commission communication protocol before summing up, formulated the IEC61850 communication standard.This communication standard is by carrying out unified Modeling to the object in the electric substation automation system, adopt Object-oriented Technique and the Abstract Common Service Interface (ACSI) that is independent of network structure, strengthen the interoperability of equipment room, can between the equipment of different manufacturers, realize seamless link.This standard possesses the characteristics of flexible configuration, reliability height, high safety, has represented automation of transformation substations technology development in future direction.
The core of IEC61850 communication standard is exactly " model and modeling ", the model that not only comprises data object in the electric substation automation system, and comprise the model of substation communication system, these models and OO Abstract Common Service Interface (ACSI) combine, and have just formed the communications platform that has the opening of enriching self-described information.
IEC61850 mainly solves " interoperability " problem, and the basis of " interoperability " is exactly the model unification, and IEC61850 standard, " IEC61850 engineering construction standard " all have detailed definition to model.IEC 61850 in implementation of China so far, generate this link for model, great majority still adopt the mode of manual modeling, a lot of links need artificial interference, because the participation of human factor make mistakes easily, and the project cycle is longer, limited the large tracts of land of IEC 61850 functions and promoted, manual editing's intelligent electronic device ability description ICD model file also has following shortcoming simultaneously:
1) needs cost plenty of time study substation configuration description language SCL
2) mode of substation configuration description language SCL descriptive model is very flexible, and the manual editing is unfavorable for model specificationization
3) because the complicacy of model causes intelligent electronic device ability description ICD file editing amount big
In view of above shortcoming, manual editing ICD model file is not suitable for using in the 61850 through engineering approaches application stages of IEC.
The tradition modeling pattern adopts manual modeling or some small tool softwares; the operation interface of editorial logic equipment LD, logic node LN, data object DO, data attribute DA is provided; the corresponding relation of model file and IED real-time data base can be edited; basically can realize modeling; but need the user to be familiar with very much IEC 61850; this has relatively high expectations to the relay protection slip-stick artist, and automaticity is not high yet, is difficult to through engineering approaches and uses.
IEC 61850 automatic modelings are based on IEC 61850 basic models; adopt the practice of model configuration specificationization; the IEC61850 function is encapsulated; IEC 61850 ins and outs are realized by software inhouse; the corresponding relation of model and IED real-time data base is also realized by software automatically by short address sAddr; externally only provide and protect relevant information; thereby enlarge the scope of using object; all can carry out IEC 61850 modelings as long as understand the slip-stick artist of relay protection function, this promotes on a large scale IEC 61850 and seems particularly important.
Therefore, in order to utilize the IEC61850 communication standard better, reduce engineering configuration effort amount, the present invention proposes a kind of IEC61850 automatic modeling implementation method, this is manually on the modeling basis IEC61850 through engineering approaches to be promoted the new trial of being done.
Summary of the invention
The present invention proposes a kind of implementation method of IEC61850 automatic modeling, its purpose is to guarantee the correctness of IED model file, and unitarity shortens the modeling cycle, for engineering construction brings maximum convenience.
Adopt digital transformer substation or traditional transformer station of IEC61850 standard, require system modelling to realize standardization, IEC61850 has established the modeling standard of electric system, for electric substation automation system has defined information model and information exchange model unified, standard, realize the interoperability of smart machine, realize transformer station's information sharing.The ICD model reflects the virtual rating of IED strictly according to the facts, is the basis of realizing interoperability, each IED producer provide separately ICD model file to system integrator as the system integration and test foundation.First and second equipment is carried out unified Modeling, and resource adopts the unified naming rule of the overall situation, has realized seamless communication in the transformer station and between transformer station and the control center, thus simplified system maintenance, configuration and engineering construction.
The present invention is specifically by the following technical solutions:
A kind of method that adopts the reorganization of XML information to realize the transformer substation IEC 61850 automatic modeling may further comprise the steps:
1), the wall intelligent electronic device IED of standard transformer station information, adopt XML serializing technology that above-mentioned information is recombinated, definition model configuration specification interface document is for automatic modeling provides unified model configuration template;
2), the stress model configuration template, load embedded model, the configuration template edition interface that supplies a model is derived the ICD model file, adds sAddr information automatically, generates the ICD model file;
3), the wall intelligent electronic device IED of transformer station loads described ICD model file, resolves described ICD model automatically, extracts sAddr information automatically, and sAddr information and real-time data base are shone upon one by one, carries out inside and outside data sync.
Wherein, in step 1), further preferably mate IED information automatically by key word; Quick search function is provided, merges the IED information of general character automatically; The IED information spinner will comprise the description and the configuration information of measuring amount, incident, definite value; At measuring amount, carry out automatic packet transaction according to channel attributes, passage are separate; At incident, definite value, preferably carry out auto-associating by the practice of defencive function coupling; Definition meets the dictionary template of IEC61850 instantiation title.
In step 2) in, described embedded model meets IEC61850 standard XML template for what formulate in advance, is configured according to engine request.
In step 3), IED searches for effective I CD model file automatically and resolves, to decoding with the ICD model file of UTF-8 (a kind of elongated character of UNICODE is hereinafter to be referred as UTF-8) form coding; Adopt the linear address Unified coding
The advantage of this IEC61850 method for automatic modeling is, the IEC61850 function is encapsulated, and the operation of logic node is finished by Automatic Program, reduces the technical requirement to the user; Automatically derive the ICD model file, saved a large amount of engineering configuration efforts; Simultaneously, IED information can be adjusted, and guarantees the dirigibility of implementation procedure.
The characteristics of this implementation method are:
1. workable, also can modeling for the protection personnel that are unfamiliar with the IEC61850 standard.
2. efficient, generate the ICD model file automatically.
3. extensibility is strong, generates the mapping relations of IEC61850 information and real time data library information automatically, and the sAddr content can define flexibly.
Description of drawings
Fig. 1 is an IEC61850 automatic modeling level synoptic diagram;
Fig. 2 is an automatic modeling instrument design flow diagram;
Fig. 3 is that IED resolves sAddr and mapping process flow diagram.
Embodiment
The invention provides the method that a kind of XML of employing information reorganization realizes the transformer substation IEC 61850 automatic modeling, comprise the ICD model file generates, IED resolves automatically processing, model and real-time data base mapping, this method has following steps:
A. standard transformer station wall intelligent electronic device IED information adopts XML serializing technology that above-mentioned information is recombinated, and generates automatic modeling standardization interface document, mates IED information automatically by key word, improves the information working (machining) efficiency.Definition meets the dictionary template of IEC61850 instantiation title, is used for retrieving fast title abbreviations such as definite value, pressing plate;
B. stress model configuration template, load embedded model, by the automatic modeling instrument IED information is edited, disposed, on embedded model based, enrich the expression connotation of model, with the linear address of internal data according to certain rule encoding, automatically add pairing data attribute DAI (instantiation data attribute to, hereinafter to be referred as DAI) sAddr in, carry out logic node operation automatically, derive correct ICD model file; The automatic modeling instrument provides friendly configuration editing interface, 61850 abstract concepts are encapsulated, externally only provide and protect relevant option, reference symbol, allow the user is imperceptible to carry out 61850 modelings, possesses intelligent memory functional to repeating content edited in the modeling simultaneously, the content of general character is only imported once, is entered into historical template then;
C. transformer station's wall intelligent electronic device IED searches for and resolves the ICD model file that the automatic modeling instrument generates automatically, tree shaped model is converted into the plane leaf node, automatically extract sAddr information, with sAddr information is bridge, model and real-time data base are shone upon one by one, carry out inside and outside data sync.
Further combined with Figure of description and specific embodiment technical scheme of the present invention is described below.
Provide the hierarchical model of IEC61850 automatic modeling at accompanying drawing 1, comprised following three partial contents on concrete the enforcement: the one, the reorganization of IED information, standardization part; The 2nd, the automatic modeling instrument is derived ICD model file part; The 3rd, IED resolves the ICD model file and shines upon the real-time data base part automatically.Be illustrated with regard to the realization of each several part content respectively below:
(1), IED information reorganization, standardization
There are a plurality of defencive functions in protection, and different defencive functions can be thrown flexibly and move back, and configuration is abundant; each IED of IED producer information is also incomplete same; mainly comprise description, configuration informations such as measuring amount, incident, definite value,, need carry out standardization processing these information for unified Modeling.The invention provides XML information recombination form and standardization interface document, adopt Object-oriented Technique, design configurations base class and derived class, use XML serializing technology and load, store IED information, each IED producer can will describe according to debugging software separately, configuration information is converted into normalized interface document automatically, utilize the automatic modeling instrument to carry out modeling then.
(2), the automatic modeling instrument is derived the ICD model file
The normalized interface document of automatic modeling tool loads, stuff event, alarm, open into etc. the structural information body, and with these message reflections to tools interfaces, be convenient to check, edit.Simultaneously for these imformosomes that do not adopt Object-Oriented Design, can be configured, association, configuration interface encapsulates the IEC61850 function, need not the user and understands the IEC61850 standard, and protection slip-stick artist, Mechanic Engineer all can use.Specifically comprise two parts content: the one, information processing; The 2nd, generation model is illustrated with regard to the realization of this two parts content respectively below.
1, information processing
Tradition transformer station is to the digital transformer substation transition period, the IED internal data is not fully according to the IEC61850 standard definition, therefore exist on IED internal data and the IEC61850 stipulations interface and have asymmetric situation, for remedying information gap between the two, need process IED information, to satisfy of the requirement of IEC61850 standard the IED information integrity.
1), opens into, alarm, pressing plate
Adopt the instantiation title that defines in the IEC61850 standard, reflect IED input, output interface ability strictly according to the facts, the information that filtering is unnecessary.
2), incident
Adopt different defencive function logic nodes at different defencive functions, the special-purpose definite value item of clear and definite event correlation clearly is satellite informations such as protection startup or protection outlet.
3), definite value
Adopt the instantiation title that defines in the IEC61850 standard, fill information such as definite value step-length, dimension, maximal value, minimum value.
4), measuring amount
Separate according to voltage, current channel attribute, passage, mate MMXU, MMXN logic node automatically, carry out packet transaction automatically at the MMXU logic node.Do not meet the measuring amount of branch set condition, adopt MMXN or GGIO logic node automatically, satellite informations such as the dimension of filling measuring amount, bound.
5), record ripple
Filling record ripple starts, the record ripple is finished, electric network fault information.
2, generation model
The common information that defines in IEC 61850 standards is categorized in the embedded model,, follows principle from small to large, promptly from the bottom to the upper strata, set forth model as the common information of automatic modeling instrument.Comprising EnumType, DAType, several big classes of DOType.
As shown in Figure 2, after the operation of automatic modeling instrument, generate the automatic modeling instance objects, at first IED information is carried out standardization processing, in this process, if the standardization failure, instrument can provide miscue information; After ruleization changed into merit, automatic modeling tool loads embedding model judged whether embedded model is effective, whether meets the IEC61850 standard, whether possesses IEC61850 basic model information.After confirming that configuration is errorless, enter the ICD model file and generate ready state.The automatic modeling instrument shines upon LD, Dataset, LNType, LN example, DOI, DAI successively automatically, adds sAddr automatically, clears up useless nodal information, and model is carried out verification, derives correct ICD model file then.
The automatic modeling instrument adopts Object-oriented Technique based on the MSXML2.0 control, and file operation encapsulates to XML, simplifies the XML file operation.For follow-up XML node adds, deletion is got ready.After the user assigned " reduced model " instruction, the automatic modeling instrument is executable operations according to the following steps:
1), adds the LD node, some LD node commonly used acquiescences embody in embedded model, can add according to the IED actual disposition during generation model, cutting, during generation model, need to obtain earlier LD node handle, empty information about firms, and then add again, residual to guarantee unnecessary historical information.
2), add Dataset, the dot information with the remote signalling of model configuration, remote measurement, definite value adds Dataset to, forms data acquisition, guarantees the order of data.
3), add the LN node, add Mod, Beh, Health nodal information automatically for each node, reflect the operational mode and the quality situation of this logic node.The instance number of each LN node is appended processing automatically, prefix, and lnClass is according to model configuration interpolation automatically.
4), add LNType, according to the normalization information in the model configuration, logic node is sorted out, take out logical node type, the logic node of concrete similar behavior can shared logical node type, adds class members's information in each logical node type automatically.
5), add DOI, the dot information in the model configuration need carry out instantiation by DOI, adds data attribute, and the data object nest information.
6), add DAI, each member's of instantiation DOI data attribute for example, adds the description of each information point under ' dU ' node to the form of UTF-8
7), add sAddr information, sAddr is positioned at the terminal leaf node of model, configuration is added automatically according to model, sAddr information is the information that automatic modeling instrument and IED server software incident are appointed, is used for data map and identifies.SAddr information sample: " s1.s2.s3.s4... ", the s1 ~ s4 here can be self-defined, and for example defining s1 is type identification, differentiation incident, warning information; Definition s2 is the CPU sign; Definition s3 is the ID sign; Definition s4 is attribute-bit (expression numerical value, time, a quality etc.).
8), the reduced model file, append model file CRC check sign indicating number automatically, be used for version identifier.
(3), IED resolves the ICD model file and shines upon real-time data base automatically
Database is a most important module in the functional module of automatic modeling, because all realizations all depend on database structure.Utilizing the information of database storing model associated documents, wherein mainly is ICD information.The quantity of information that ICD comprises is very big, can not all have all information in the database.Under the prerequisite that guarantees the storage necessary information, the structure of database should be tried one's best simply, should make things convenient for applied function module and interface module to extract data simultaneously.
The information that ICD comprises can be divided into mark and data two classes.Wherein mark part belongs to constant part by IEC 61850-6 standardization, does not need to be stored in the database.And data division needs the modeling personnel to set up according to IED function and IEC61850 modeling method, belongs to uncertain part, needs input database.A principle of canned data should be: storing format informations not, only store concrete data message.
ICD mainly comprises DataTypeTemplate section and IED section.
Consider that from IEC 61850 through engineering approaches application point of view types such as the LNType in the DataTypeTemplate section, DOType are unified normalized.Begin before the IED modeling, the type that should use each IED gather after standardization and is the fundamental type storehouse.When setting up the IED model, the type of quoting must be chosen from the fundamental type storehouse, could guarantee to realize standardization.Information in the fundamental type storehouse can satisfy the needs of novel I ED modeling behind a small amount of the expansion, reach information multiplexing.The fundamental type data belong to system and share information, must guarantee data integrity when safeguarding, standardization.
The IED section mainly is to describe the information such as LN, DAI, DataSet and various controll blocks of each IED function.The IED model data belongs to the IED exclusive data.
After IED powers on, carry out init state, create real-time data base, creates successfully after, unlatching 61850 real-time Processing tasks.
After IED enters 61850 duties, automatically search icd or cid are the model file of suffix and carry out verification, search effective model file after, the beginning analytic model, with tree shaped model structure mapping SCL information structure, resolution data type template is opened up memory headroom, creates logical device, logic node, report controll block imformosome, the initialization report instance, generation model leaf node array after the success, promptly enters 61850 models and resolves completion status.
As shown in Figure 3, IED obtains the model information structure, automatically search for sAddr information, successively resolve tree-shaped nested structure, start with from the LD root node, travel through LD successively, LN, DO, for the SDO type of the nest of DO, the FC character set is empty, so the FC character set is appended into after need indexing DA again, search for the instantiated nodes at DAI place then, just calculate the primary retrieval process up to leaf node and finish, if find the sAddr node, and content is effective, then with sAddr and reference common storage in two-dimensional array, configuration result is outputed to file or global data structures body.If any place that does not meet the modeling standard is arranged in the recursive lookup process, can finish this recursive procedure in advance.More than described the process of searching a sAddr, existed a plurality of sAddr, leaching process to repeat above process in the ICD model file and get final product.
Guaranteeing under the effective situation of sAddr information, resolve sAddr information connotation, model leaf node and real-time data base are set up relation one to one, simultaneously the real-time data base feedback of status is arrived model leaf node data buffer, like this, the practical operation situation of IED is promptly by delivering to station level on the IEC61850 method of service.
More than describe the embodiment of the present invention in IEC61850 automatic modeling process in detail.
And scope of the present invention should not be limited to these descriptions.Any modification, improvement in principle of the invention scope all belongs to protection scope of the present invention.
Claims (4)
1. method that adopts XML information reorganization to realize the transformer substation IEC 61850 automatic modeling may further comprise the steps:
1), the wall intelligent electronic device IED of standard transformer station information, adopt XML serializing technology that above-mentioned information is recombinated, definition model configuration specification interface document is for automatic modeling provides unified model configuration template;
2), the stress model configuration template, load embedded model, the configuration template edition interface that supplies a model, encapsulation IEC61850 function is carried out the logic node operation automatically, adds short address sAddr information automatically, derives intelligent electronic device ability description ICD model file;
3), transformer station's wall intelligent electronic device IED loads described intelligent electronic device ability description ICD model file, automatically resolve described intelligent electronic device ability description ICD model, automatically extract short address sAddr information, with short address sAddr information is bridge, model and real-time data base are shone upon one by one, carry out inside and outside data sync.
2. according to the method for claim 1, it is characterized in that: in step 1), further mate IED information automatically by key word; Quick search function is provided, merges the IED information of general character automatically; IED information comprises the information of measuring amount, incident, definite value;
Wherein, at measuring amount, carry out automatic packet transaction according to channel attributes, passage are separate;
At incident, definite value, carry out auto-associating by the practice of defencive function coupling; Definition meets the dictionary template of IEC61850 instantiation title.
3. according to the method for claim 1, it is characterized in that: in step 2) in, described embedded model meets IEC61850 standard XML template for what formulate in advance, is configured according to engine request.
4. according to the method for claim 1, it is characterized in that: in step 3), IED searches for effective intelligent electronic device ability description ICD model file automatically and resolves, to decoding with the ICD model file of UTF-8 form coding; Adopt the linear address Unified coding.
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