CN101789042A - Model increment comparing tool of common information model (CIM) of electric network enterprise - Google Patents
Model increment comparing tool of common information model (CIM) of electric network enterprise Download PDFInfo
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Abstract
The invention relates to a model increment comparing tool of a common information model (CIM) of International Electrotechnical Commission (IEC) 61970 of an electric network enterprise of a power system, comprising the following steps of: (A) analyzing a total amount of CIM files of a new version; (B) establishing a CIM model set A; (C) obtaining a stored previous CIM model set B; (D) comparing model increments on the basis of a model comparing rule algorithm; (E) generating model increment files; and (F) storing the CIM models of the new version according to the model increment files. The model increment comparing tool spends less time, occupies fewer resources for analyzing the CIM files, and saves storing space for storing the total amount of new CIM models.
Description
Technical field
The present invention relates to model increment comparative approach, relate in particular to the model increment compare tool of a kind of electric system IEC61970 of power grid enterprises common information model CIM (Common Information Model).
Background technology
The CIM model is a common information model, is the basic module in the network management, and it is for the comprehensive utilization management data, and successfully setting up management system has significance.By common information model, better solution can be provided, impel management system to work more in tandem.Common information model is made up of a nucleus module and one group of universal model that is extended out by kernel model, defined respectively need management from network, operating system to each aspect of application program on major technique territories such as service, network, application, user and database.
Common information model (CIM) is 2.2 editions at present, and the form so that the gender neutral language of similar object designs figure and the model that is called Managed Object form (MOF) is described provides a data modeling environment.In this, CIM modeling environment and MOF and unified modeling language (UML), IDL (Interface Definition Language) (IDL) are very similar.
The application of IEC61970 common information model CIM (Common Information Model) existing very extensive maturation in electric system, electric power system model based on CIM often adopts the XML file to describe, CIM XML/RDF model file reflection electric network composition and operational factor, define the information model of grid equipment, and become industrial standard.Common Information Model CIM is the important tool of electric power enterprise application integration, and it comprises public class, attribute, relation etc., and its class (Class) and object (Object) are abstract, can be used for many electric system application definition information exchange model.CIM provides a comprehensive logical view about electric power energy management system information, is an abstract model of representing all main objects of electric power enterprise, has comprised the publicly-owned class and the attribute of these objects, and the relation between them.
The electric network model CIM file of a full dose has comprised very detailed information, and based on the XML/RDF form, so file is generally all bigger, use the system of CIM model file after obtaining the CIM file, can carry out following operation usually: to resolve the CIM file, the model information that the system that obtains is concerned about; Storage CIM model is to database; After each CIM model changed, the system of use CIM model file resolved the CIM model file of new full dose again again.
The process that the most models increment is handled is as follows:
(1) need to select CIM model file relatively;
(2) model version of selection previous release;
(3) begin to carry out the CIM quotient of difference;
(4) generate the CIM delta file;
(5) according to the CIM delta file that generates, store new CIM model version.
Usually resolve full dose CIM model file and can have several problems:
(1) parsing to the CIM file can spend many time and take bigger resource;
(2) the new CIM model of full dose storage is too wasted storage space.
So the increment information that generally uses the system of CIM model file only need obtain model gets final product,,, generate CIM model delta file by this CIM model compare tool so the instrument of a kind of CIM model of necessary exploitation comparison solves this problem.
In view of this, the present invention aims to provide a kind of model increment comparing tool of common information model (CIM) of electric network enterprise.
Summary of the invention
The present invention is directed to existing full dose CIM model file and can spend many time to the parsing of CIM file and take bigger resource and deficiency that the new CIM model of full dose storage is too wasted storage space, a kind of model increment comparing tool of common information model (CIM) of electric network enterprise is provided.
In order to reach above purpose, technical solution of the present invention is as follows:
A kind of model increment comparing tool of common information model (CIM) of electric network enterprise may further comprise the steps:
A) resolve redaction full dose CIM file;
B) set up CIM model set A;
C) obtain stored previous CIM model set B;
D) carry out the model quotient of difference based on model comparison rule algorithm;
E) generation model delta file;
F) according to model delta file storage redaction CIM model.
Described step D) comprising:
Step D1) judges whether object is new object, judges promptly whether certain object exists in set B in the set A, if then object adds the insertion item of set; If not, then travel through object;
Step D2) judges whether object is out-of-date, judges promptly whether certain object in the set A does not exist in set B, if then object adds the deleted entry of set; If not, then travel through object;
Step D3) judges whether object is changed, judge promptly in the set A that certain object exists but variation has taken place for its CIM attribute or incidence relation in set B, if then object adds the renewal item of set; If not, then travel through attribute and object.
Described step D1) comprising:
Step D1a) calculates: set A-set B;
Step D1b) traversal object;
Step D1c) judge whether object is new object, if, execution in step D1d then); If not, execution in step D1e then);
Step D1d) object adds the insertion item of set;
Step D1e) judge whether the traversal object finishes, if, execution in step D2 then); If not, execution in step D1b then).
Described step D2) comprising:
Step D2a) calculates: set B-set A;
Step D2b) traversal object;
Step D2c) judge whether object is out-of-date, if, execution in step D2d then); If not, execution in step D2e then);
Step D2d) object adds the deleted entry of set;
Step D2e) judge whether the traversal object finishes, if, execution in step D3a then); If not, execution in step D2b then).
Described step D3) comprising:
Step D3a) calculates: Ji HeA ﹠amp; Set B;
Step D3b) traversal object;
Step D3c) traversal attribute;
Step D3d) judge whether attribute or incidence relation change, if, execution in step D3e then); If not, execution in step D3f then);
Step D3e) object adds the renewal item of set;
Step D3f) judge whether the traversal attribute finishes, if, execution in step D3g then); If not, execution in step D3c then);
Step D3g) judges whether the traversal object finishes, if then algorithm finishes; If not, execution in step D3b then).
The present invention makes it compared with prior art owing to adopted above technical scheme, and the present invention has the following advantages:
The present invention can spend the less time and take less resource the parsing of CIM file, and the new CIM model of full dose storage is saved storage space.
Description of drawings
Fig. 1 is the process flow diagram of model increment comparing tool of common information model (CIM) of electric network enterprise of the present invention.
Fig. 2 is for carrying out model quotient of difference particular flow sheet based on model comparison rule algorithm among the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is elaborated.
Referring to Fig. 1, a kind of model increment comparing tool of common information model (CIM) of electric network enterprise of the present invention may further comprise the steps:
A) resolve redaction full dose CIM file;
B) set up CIM model set A;
C) obtain stored previous CIM model set B;
D) carry out the model quotient of difference based on model comparison rule algorithm;
E) generation model delta file;
F) according to model delta file storage redaction CIM model.
Referring to Fig. 2, in the present embodiment, carry out based on model comparison rule algorithm that the model increment is more specific to be may further comprise the steps among the present invention:
Step D1) judges whether object is new object, judges promptly whether certain object exists in set B in the set A, if then object adds the insertion item of set; If not, then travel through object;
Step D2) judges whether object is out-of-date, judges promptly whether certain object in the set A does not exist in set B, if then object adds the deleted entry of set; If not, then travel through object;
Step D3) judges whether object is changed, judge promptly in the set A that certain object exists but variation has taken place for its CIM attribute or incidence relation in set B, if then object adds the renewal item of set; If not, then travel through attribute and object.
Described step D1) comprising:
Step D1a) calculates: set A-set B;
Step D1b) traversal object;
Step D1c) judge whether object is new object, if, execution in step D1d then); If not, execution in step D1e then);
Step D1d) object adds the insertion item of set;
Step D1e) judge whether the traversal object finishes, if, execution in step D2 then); If not, execution in step D1b then).
Described step D2) comprising:
Step D2a) calculates: set B-set A;
Step D2b) traversal object;
Step D2c) judge whether object is out-of-date, if, execution in step D2d then); If not, execution in step D2e then);
Step D2d) object adds the deleted entry of set;
Step D2e) judge whether the traversal object finishes, if, execution in step D3a then); If not, execution in step D2b then).
Described step D3) comprising:
Step D3a) calculates: Ji HeA ﹠amp; Set B;
Step D3b) traversal object;
Step D3c) traversal attribute;
Step D3d) judge whether attribute or incidence relation change, if, execution in step D3e then); If not, execution in step D3f then);
Step D3e) object adds the renewal item of set;
Step D3f) judge whether the traversal attribute finishes, if, execution in step D3g then); If not, execution in step D3c then);
Step D3g) judges whether the traversal object finishes, if then algorithm finishes; If not, execution in step D3b then).
In actual the use, when the CIM of full dose model file was submitted to operation system, it is unborn to liking which operation system must identify, and which increases newly, and which is deleted.
At first, whether it is model of cognition object how that increment is handled most important link, promptly how to discern the model object of a model object in CIM historical models version and remain unchanged.When operation system has perfect Object Management group function, can come identifying object with the model object key word in the operation system usually, this moment, increment was handled simple relatively.And when the object naming in the MODEL C IM file can't be as major key, model object identification just must be introduced other service attribute, according to certain rule, discerned according to certain attributes.This rule need be formulated according to the characteristics and the professional knowledge of operation system usually.
Secondly, CIM model file content is more, and relation is complicated, and we need resolve the CIM model file efficiently and find out the difference variation, so must design comparison algorithm efficiently.
CIM model comparison rule is among the present invention: model object of sign has some base attributes in the full dose CIM XML model file, as name cim:Naming.name and rdf:ID.
Cim:Naming.name may bear the same name in a CIM model file, can not use it as model foundation relatively.
In a CIM model file, be to come the unique identification object with rdf:ID, but rdf:ID does not have actual professional implication, just unique in this CIM model file, variation just may take place in the rdf:ID of same object in the another one full dose CIM model file, so can not use rdf:ID as model foundation relatively.
In fact whether, discerning a model object is same in different CIM model files, not only needs name and himself service attribute of model, also needs to judge in conjunction with its relevant topology information.The present invention has studied and has designed concrete model comparison rule according to the characteristics of electric network model, is used for the model object in the different CIM model version is discerned.For dissimilar model objects, its comparison rule also is different, and specifically relatively business rule is as follows:
CIM model comparison rule
| Object type | Comparison rule |
| BasePower | The basePower value is different, then is different objects |
| BaseVoltage | BaseVoltage value or the related arbitrary difference of basePower value then are different objects |
| LimitSet, Limit, MVArCapabilityC | Whether the object of name attribute correspondence is identical, and then this LimitSet is also different with the Limit object as if difference, if identical, and this LimitSet then |
| Urve | Identical with the Limit object |
| HeatRateCurve | Whether ThermalGeneratingUnit is identical, if identical, then object is identical, if difference, then object difference |
| CurveSchedData | Whether the curve of CurveSchedule correspondence is identical, if same curve (the curve comparison principle is with reference to noted earlier) then is same object, otherwise is different objects |
| Terminal | The ConductingEquipment that at first compares Terminal, if the object that ConductingEquipment is corresponding different, if then these 2 Terminal objects affirm that the ConductingEquipment object of difference Terminal correspondence is identical, continue then relatively whether its corresponding ConnectivityNode is identical, if identical then is same Terminal, if difference then is different Terminal |
| ConnectivityNode | Have at least the ConductingEquipment under the Terminal of two correspondences identical, then be considered as same object, otherwise be different objects. |
| ACLineSegment | The name attribute that at first compares ACLineSegment, if it is different, if then difference name attribute is identical certainly for these 2 ACLineSegment objects, whether then more connected equipment is all identical, if all identical then is identical ACLineSegment, if difference then is different ACLineSegment |
| Other types | Name attribute difference then is different objects |
The model file that this rule can derive East China EMS effectively carries out increment to be handled.In the realization, need handle the object that to discern earlier, handle other objects that depend on these objects then according to business rule.When Rule Design, need to consider relation of interdependence that the object itself that is relied in the rule must be discernible.
CIM model comparison algorithm comprises among the present invention:
Algorithm flow: CIM model comparison rule is whether be used for two model objects of comparison are same model objects, and how to travel through all model objects compares, and need design comparison algorithm efficiently, and Fig. 2 is the idiographic flow of model comparison algorithm.Suppose: the model object set of new CIM model file is A, the model object set of previous CIM model version is B, set B is taked the model adapter pattern, can be customized according to adaptor interface by the user, generates set B such as read model from customer data base.
Algorithm optimization: set up the model object key word, in above-mentioned comparison algorithm flow process, we will judge that whether this object is whether new object or object be out-of-date, just must find out same model object in two model version.How from a model version, to find model object corresponding in another model version apace? here in front on the comparison rule basis, name, model object type and its affiliated partner according to each model, according to certain algorithm, for each model object is set up key word, key word is its unique identify label, be recorded in the middle of the CIM attribute localname of this model object, so localname is unique in a CIM model.The benefit of setting up unique identification localname is can be when carrying out the model comparison next time, for each model object in the new CIM model file, calculate its localname, localname according to each object in the last version CIM model of this localname and storage compares, if can find the localname of coupling, then these two model objects must be same model objects, so just can greatly improve the model relative efficiency.
In the CIM model comparison algorithm of the present invention, such as the variation of set of computations A than set B, some objects in the A set, calculate its localname earlier, find out the object that whether has identical localname in the set B then, if having this object of explanation is not new object, if there is no identical localname's just must judge according to all same type objects of comparison rule searching loop of front.Have only and traveled through all objects and could determine whether this object is new object.
Caching mechanism: in addition, CIM model comparison algorithm has adopted caching mechanism, can obviously improve relative efficiency.If the object A1 in the set A is new object then the state of buffer memory A1, A1 deletes from set A; If the object B 1 in the set B is out-of-date object then the state of buffer memory B1, B1 deletes from set B; If A1 and B1 are same objects, then its affiliated partner of record is B1 in A1, and its affiliated partner of record is A1 in B1.
In sum, the present invention can spend the less time and take less resource the parsing of CIM file, and the new CIM model of full dose storage is saved storage space.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the present invention, and be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention the variation of the foregoing description, modification etc.
Claims (5)
1. a model increment comparing tool of common information model (CIM) of electric network enterprise is characterized in that, may further comprise the steps:
A) resolve redaction full dose CIM file;
B) set up CIM model set A;
C) obtain stored previous CIM model set B;
D) carry out the model quotient of difference based on model comparison rule algorithm;
E) generation model delta file;
F) according to model delta file storage redaction CIM model.
2. model increment comparing tool of common information model (CIM) of electric network enterprise according to claim 1 is characterized in that, described step D) comprising:
Step D1) judges whether object is new object, judges promptly whether certain object exists in set B in the set A, if then object adds the insertion item of set; If not, then travel through object;
Step D2) judges whether object is out-of-date, judges promptly whether certain object in the set A does not exist in set B, if then object adds the deleted entry of set; If not, then travel through object;
Step D3) judges whether object is changed, judge promptly in the set A that certain object exists but variation has taken place for its CIM attribute or incidence relation in set B, if then object adds the renewal item of set; If not, then travel through attribute and object.
3. model increment comparing tool of common information model (CIM) of electric network enterprise according to claim 2 is characterized in that, described step D1) comprising:
Step D1a) calculates: set A-set B;
Step D1b) traversal object;
Step D1c) judge whether object is new object, if, execution in step D1d then); If not, execution in step D1e then);
Step D1d) object adds the insertion item of set;
Step D1e) judge whether the traversal object finishes, if, execution in step D2 then); If not, execution in step D1b then).
4. model increment comparing tool of common information model (CIM) of electric network enterprise according to claim 2 is characterized in that, described step D2) comprising:
Step D2a) calculates: set B-set A;
Step D2b) traversal object;
Step D2c) judge whether object is out-of-date, if, execution in step D2d then); If not, execution in step D2e then);
Step D2d) object adds the deleted entry of set;
Step D2e) judge whether the traversal object finishes, if, execution in step D3a then); If not, execution in step D2b then).
5. model increment comparing tool of common information model (CIM) of electric network enterprise according to claim 2 is characterized in that, described step D3) comprising:
Step D3a) calculates: Ji HeA ﹠amp; Set B;
Step D3b) traversal object;
Step D3c) traversal attribute;
Step D3d) judge whether attribute or incidence relation change, if, execution in step D3e then); If not, execution in step D3f then);
Step D3e) object adds the renewal item of set;
Step D3f) judge whether the traversal attribute finishes, if, execution in step D3g then); If not, execution in step D3c then);
Step D3g) judges whether the traversal object finishes, if then algorithm finishes; If not, execution in step D3b then).
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