CN104463499A - Power transmission and transformation equipment panoramic information modeling method based on CIM - Google Patents
Power transmission and transformation equipment panoramic information modeling method based on CIM Download PDFInfo
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Abstract
The invention discloses a power transmission and transformation equipment panoramic information modeling method based on a CIM. The object-oriented design technology is adopted, extension of an asset basic information model, an asset on-line monitoring information model, an asset working information model and an environment and safety information model is completed on the basis of the existing standard CIM by referring to relevant international standards such as IEC61970 and IEC61968, and a power transmission and transformation equipment panoramic information model good in universality is established. With the combination of characteristics of the power transmission and transformation equipment Internet of Things, EPC code attributes and entire life-cycle management nodes are added to the asset basic information model. The established power transmission and transformation equipment panoramic information model can provide supports for sharing and integrating of multi-source heterogeneous information of power transmission and transformation equipment and advanced application of entire life-cycle management of the power transmission and transformation equipment.
Description
Technical field
The present invention relates to power transmission and transforming equipment panoramic information modeling field, particularly a kind of power transmission and transforming equipment panoramic information modeling method based on CIM.
Background technology
One, common information model
Share to realize information and the mutual of function between electric power enterprise application system, each application system needs the understanding exchanged information being had to solidarity.For this reason, International Electrotechnical Commission (IEC) has formulated unified communication standards system---IEC 61970 and IEC 61968.These two standards jointly define a kind of electric system Common Information Model---common information model (CIM, Common Information Model).CIM is one and has nothing to do with specific implementation, for describing the conceptual model of management information.
CIM is high abstraction for the logical organization definition of electric power object, can be applied in each system, contribute to the feature identify and mapping of information between energy management system (EMS) and other application systems.For the ease of management, during power system resource object wraps to each by different classifying and dividing by CIM, the mutual relationship between class and class described in detail by each bag, is so not only easy to modelling and understanding, simultaneously also for CIM provides the possibility of expansion.Based on IEC CIM, share switching requirement in conjunction with real data, IEC CIM effectively can be expanded.
Two, assets whole-life cycle fee
Along with the fast development of China's electrical network, power grid asset scale expands rapidly, how to break through the constraint of conventional management models, seek and improve power network safety operation ability and assets profitability, the new way extending the electrical network economy life-span and new method, become the key issue that power grid enterprises are urgently to be resolved hurrily.As a kind of advanced management theory and decision-making technique, assets life-cycle management is based on the viewpoint of system, by to buying, engineering construction, operation maintenance until the overall management of the overall process such as retired, at assets security reliability service with under the condition meeting user demand, make the holistic cost of assets life cycle management minimum.Abroad facts have proved, carry out whole-life cycle fee and can save considerable cost for enterprise, promote the remarkable lifting of economic benefit.
Assets whole-life cycle fee relates to that specialty is wide, department is many, business is complicated, data volume is large, and the full spectrum information of the process need assets of whole-life cycle fee is supported.
Three, power transmission and transforming equipment panoramic information
The panoramic information of power transmission and transforming equipment is defined as the full spectrum information of power transmission and transforming equipment, comprises the information of equipment purchase, engineering construction, operation maintenance, the life overall process such as retired.Procurement information comprises procurement price, manufacturer, production time, product control, prison are made, storage etc.; Engineering construction information comprises contractor, commissioning test, construction cost, EPC coded message, geography information etc.; O&M information comprise patrol and examine, test, have a power failure, transmission facility status monitoring, power transformation/converter monitoring, load, the position of the switch, O&M cost etc.; Retired information comprises retired temporal information, retired cause information etc.
These information dispersion are in all kinds of different systems such as financial management system, power network dispatching system, energy management system, and actual is exist with the form of " information island ", can not intercommunication well.Therefore, a complete unified information model need be set up, carry out the integrated data sharing these dispersions.
Four, technology of Internet of things
Networking technology, using radio-frequency (RF) identification (Radio Frequency Identification, RFID) technology, wireless sense network (Wireless Sensor Network, WSN) technology etc. as Intelligent Recognition in kind, monitoring means, combining wireless communication network, carries out data transmission.Managing for realizing electric power asset whole life-cycle, improving running efficiency, lifting management level provide technical support.Mainly contain some advantage following: 1) by bar, tower placement sensor node, the perception to transmission facility can be improved, combining wireless communication network, realize Combined Treatment, data transmission; 2) carry out that identification, electronic tag and electron work ticket, environmental information are monitored, remote monitoring etc., realize confirming Obj State, monitoring working routine and record operating process; 3) radio-frequency (RF) tag and identification code system are applied to power equipment, realize the functions such as assets Identity Management, Asset State Real-Time Monitoring and aid decision making such as the intelligent acquisition to electric power asset information, automatically identification, asset count, automatic detecting, intelligent allocation.
The application of technology of Internet of things in electric system, the perfect acquisition of power transmission and transforming equipment panoramic information.For equipment full life cycle management provides support, but, also make information magnanimity, multi-source, the isomery more that need process.Therefore higher technical requirement is proposed to the information model of power transmission and transforming equipment.
Summary of the invention
Technical matters to be solved by this invention is, not enough for prior art, provides a kind of power transmission and transforming equipment panoramic information modeling method based on CIM.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of power transmission and transforming equipment panoramic information modeling method based on CIM, comprises the following steps:
1) determine modeling object, judge the bag whether had in IEC61970, IEC61968 standard about described modeling object, if exist, then new class is set up in expansion; If do not exist, then the newly-built bag about described modeling object, and new class is set up in expansion in this bag;
2) judge whether the new class that above-mentioned expansion is set up exists in the bag of modeling object, if exist, then new attribute is set up in expansion; If do not exist, then this new class is set up in expansion, and the attribute of this new class is set up in expansion;
3) according to the practical application scene of modeling object in electric system, the new class that analysis description expansion is set up and the original CIM of IEC standard have the relation between class;
4) data type expanding the attribute set up is determined;
5) by above step, set up comprise, the power transmission and transforming equipment model of class, attribute and data type, carry out further summarizing to the new class and attribute of wherein expanding foundation and abstract, obtain abstract model, and the abstract model that standardizes.
The method of standardization abstract model is as follows:
1) be multiple classes with part attribute by class destructing more for attribute in abstract model;
2) redundant data in abstract model is eliminated;
3) class name of actual name as class is chosen, and all key nouns of the class definition that standardizes.
Compared with prior art, the beneficial effect that the present invention has is: the present invention expands and establishes panoramic information model on the basis of CIM, the integrated and shared of magnanimity isomeric data can be realized, provide model supports for power transmission and transforming equipment carries out whole-life cycle fee.
Accompanying drawing explanation
Fig. 1 shows panoramic information modeling framework of the present invention;
Fig. 2 shows the flow process of panoramic information modeling method of the present invention;
Fig. 3 shows the essential information model that the present invention is based on EPC coding;
Fig. 4 (a) shows embodiment of the present invention insulator essential information model; Fig. 4 (b) shows embodiment of the present invention overhead transmission line power cable extended model; Fig. 4 (c) shows embodiment of the present invention equipment container class extended model;
Fig. 5 (a) shows on-line monitoring traffic model of the present invention; Fig. 5 (b) shows on-line monitoring measurement model of the present invention;
Fig. 6 shows assets job information model of the present invention;
Fig. 7 shows environment of the present invention and security information model.
Embodiment
The present invention adopts Object-oriented Technique, with reference to associated international standards and CIM modeling pattern such as IEC61970 and IEC61968, specify that power transmission and transforming equipment panoramic information modeling approach.Modeling framework as shown in Figure 1.
1, panoramic information classification
Power transmission and transforming equipment full spectrum information is divided into essential information, O&M procedural information, on-line monitoring information, environment and security information four class.
1) assets essential information comprises the position of equipment, coding, nameplate and technical parameter, is mainly derived from the account data of production management system.Mark in EPC coded message indication equipment life cycle management and identity information.Obtained by technology of Internet of things such as RFID.Described by assets essential information model.
2) assets job information refers to the data that equipment produces in operation maintenance and work activities, according to the difference of business, is mainly divided into and patrols and examines, tests, diagnoses and overhaul four parts.Described by assets job information model.
3) on-line monitoring information refers to by application technology of Internet of things, by using the real-time dynamic data information being arranged on various intelligent sensor and monitoring instrument acquisition equipment on production line or equipment.Described by on-line monitoring information model.
4) environment and security information refer to closely-related environment weather information and public safety information with power equipment, and data mainly come from meteorological department and safety supervision mechanism.Described by environment and security information model.
2, information modeling demand analysis
1) the Asset bag in IEC 61968 is described later in detail assets essential information model.But EPC coded message does not exist in current CIM, require to carry out expansion modeling to it; Equipment component does not have CIM corresponding, as lightning arrester, insulator etc.; The existing model imperfection of equipment component, as transmission line of electricity, cable etc.Meanwhile, efficiency utilization data and data increment need to carry out combination description to part assets information.
2) operational process that the Work of IEC 61968 wraps for equipment is described in detail, and contains job placement, work startup, working stamndard, end-of-job and reset etc.But Work bag describes detailed not for the maintenance information of equipment.Therefore, need to carry out expansion modeling to assets working model.
3) IEC standard does not specifically describe dynamic Monitoring Data, and also not to monitoring communication network and monitoring technology modeling, they are as the important component part of monitoring of equipment, needs to carry out expansion modeling with reference to Meas and Asset bag in CIM standard.
4) existing Asset bag only describes position and the area information of assets, does not consider the impact of environment, safety factor.Therefore, need to carry out expansion modeling to environment and security information model.
2, modeling principle
Expansion principle: whether (1) exists decision whether carry out attribute extension according to building device model in IEC61970, IEC61968 standard.If exist, then carry out attribute extension.If do not existed, then a newly-built bag, sets up class figure, for the new class of these device extension, is associated and describes the incidence relation between class and class in bag; When interpolation is newly wrapped, the model of expansion all should be placed in this bag or in attached bag of its bag, in order to avoid obscure mutually with the class in original model.(2) keep model original structure constant as far as possible, adopt the method inherited to produce new subclass from original class, and associated expansion part and new subclass.When needs add new class, the succession of clear and definite new class, polymerization and incidence relation, avoid revising original master pattern, and determine last relation in conjunction with business is actual.
Nomenclature principle: when Unified Model, class and attribute names mode can be expressed by the combination of English word or Chinese, add EX_, title is expressed more clear before the new Property Name of existing class.
3, modeling method
In modeling process, various information needed for each for power transmission and transforming equipment whole-life cycle fee stage is divided into the large class of assets essential information model, on-line monitoring information model, assets job information model, environment and security information model four, set up complete power transmission and transforming equipment panoramic information model by unitive search, by setting up association between various types of, class, cooperatively interacting between class and object realize the dynamic behaviour of system etc. and become to assign to set up whole model.Wherein CIM expansion will consider three problems: whether will set up new bag; Expand which new class; Expand attribute and the property value of which existing class.Concrete grammar flow process as shown in Figure 2.
Power transmission and transforming equipment panoramic information model modelling approach is:
1) determining modeling object, by consulting IEC61970, IEC61968 standard, in criterion, whether having the model bag about this equipment.If exist, then consider the new class of expansion; If do not exist, then the newly-built model bag about this equipment, and all extension classes are placed in this bag.
2) judge to wait whether expand new class exists in model bag, if exist, then consider to carry out attribute extension; If do not exist, then the newly-built attribute about this type of.CIM composition structure is aggregated into " class " by " attribute ", aggregated into " class view ", be polymerized to further again " attached bag " by " class view ", be finally polymerized to " model " by " attached bag " by " class ".
For model undefined in an original CIM then newly-built bag, expansion respective class figure in bag, the relation setting up class and class adds attribute again.Such as on-line monitoring information model and environment and security information model, respectively newly-built corresponding attached bag in Meas bag and Assets bag;
Model is already present in a standard, and class is perfect not, then add new class.As transformer resource model is set up in IEC 61970, then expand the oil-immersed pump class, pressure releaser class etc. that make new advances successively;
To the class set up, when attribute does not meet the demands, then add this generic attribute.
3) describe and wait to expand the relation between new class and existing class, comprise polymerization, inherit and incidence relation.CIM class figure not only can describe various object in electric system, and can also describe the various static relations between them, the relation between class discloses them and how to construct each other.CIM class mainly comprises 3 kinds of mutual relationships: inherit, associate, assemble.
Inherit the relation represented between general class and concrete kind, concrete kind is based upon on the basis of general class, comprises all attributes of general class, member and relation, and adds the supplementary information attribute of expansion.Inheritance represents with the arrow pointing to parent from subclass in a model, and what point to parent is an empty triangle.
Association is a kind of structurized relation, represents to there is certain contact between two kinds of object class.Incidence relation comprises two yuan of relations and n-tuple relation.Two yuan of relations refer to man-to-man relation, and n-tuple relation refers to the relation of one-to-many or multi-to-multi.The object class at association two ends associates with certain participation of roles, and be eachly associated with two roles, each role has tuple, tuple indicate the object participating in this association number.
Polymerization shows it is a kind of relation of entire and part between class and class.Wherein, overall class by office's category structure or comprise local class.
4) judge whether the data type of newly-built generic attribute and extension class attribute exists, if exist, then select associated data type; If do not exist, then newdata type.
5) standardize abstract model, makes it more to simplify, accurately.Should mainly according to three principles during normative model: be 1. multiple classes with a small amount of attribute by class destructing more for attribute; 2. redundant data is eliminated; 3. choose the title of the noun in example as class as far as possible, and all key nouns of specification class definition.
The foundation of panoramic information model
(1) essential information modeling
Existing IEC 61968 standard contains most of essential information of power transmission and transforming equipment, but can not meet the needs of equipment full life cycle management.According to the extensibility feature of CIM, the essential information attribute for new technology, new equipment is expanded, mainly for two class essential informations: the essential information of the non-modelling apparatus of part and parts in the EPC coded message of armamentarium and standard.
1) based on the modeling of EPC coding assets essential information
Assets basic information management need apply to the EPC coding of equipment, and is there is not EPC coded message in original CIM, should consider the reasonable description of EPC part, expand it in the panoramic information model of therefore equipment.EPC coding mainly comprises the contents such as header, equipment ownership, device class and sequence number, in conjunction with EPC coded message, according to the information selection principle of whole-life cycle fee, EPCTech class is extended in asset base model, EPC for describing this coding identifies main essential information, comprise the RFID type adopting the figure place of EPC, header, acquisition EPC, and the EPC coded sequence number of concrete certain equipment, EPCTech class is associated with in assets class.
In addition, the life cycle management of power transmission and transforming equipment comprises the buying of equipment, engineering construction, operation maintenance, retired four-stage, for each life cycle management stage of equipment, attribute extension has been carried out to Asset class, with the addition of PLMCNode(whole-life cycle fee node) attribute, definition the type, for enumerating class, by buying, engineering construction, operation maintenance, retiredly to be formed, for marking the periodic knot position at each assets, be convenient to asset management.The EPCTech class of expansion as shown in Figure 3.
2) the expansion modeling of power transmission and transforming equipment essential information
In order to support standardization and integrated demand, need on the basis of inheriting original power transmission and transformation data model to the equipment essential information expansion do not related in CIM, the description of more newly-increased equipment classes, is divided into following three kinds of situations:
1. towards the expansion of the non-modelling apparatus of CIM
Some equipment does not have model to match in CIM at all, needs modeling again, as lightning arrester, insulator, DC current (voltage) mutual inductor.The framework of newly-established basic model comprises five aspects: ElectricalAsset, ElectricalTypeAsset, EllectricalAssetModel, ElectricalProperties(electric attribute class) and MechanicalProperties(mechanical attributes root class).First three attribute is inherited respectively in Asset, TypeAsset, AssetModel tri-root classes, and is polymerized in the 4th Attribute class ElectricalProperties.Front four classes form electric asset model framework, and the model of electrical equipment is newly founded a capital and need be inherited four parents of said frame.For there is no hereditable class, adding self attributes and expanding a new class.Insulator essential information model is as shown in accompanying drawing 4 (a).
2. to the expansion of equipment appurtenances
In some visual plant, equipment has carried protective device and has carried out judgment device failure condition, and usual CIM modeling does not relate to these type of appurtenances.Overhead transmission line and power cable are the exemplary apparatus of this type of expansion.Set up overhead transmission line and power cable essential information model, newly-built OHConductorAssetModel(pole line asset model class) and CableAssetModel(cable asset model class) inherit in LinearConductorAssetModel(linear conductor asset model class), newly-built OHConductorTypeAsset(pole line type assets class) and CableTypeAsset(type of cable assets class) inherit in LinearConductorTypeAsset(line style types of conductors assets class), constitute the basic framework of circuit assets essential information model, and then required attribute is put into corresponding class respectively.Overhead transmission line power cable extended model is as shown in accompanying drawing 4 (b).
3. to the expansion of equipment container class
Copy the equipment container such as the power plant in IEC61970, transformer station interval, set up the container subclass of relevant device, introduce the concept of transmission facility container " line segment ".Line segment comprise two shaft towers and between equipment.By overhead transmission line Asset(assets class), Pole(bar class), Tower(tower class), ArresterAsset (lightning arrester assets class) and InsulatorAsset(insulator class) aggregate into line segment class, inherit in EquipmentContainer(equipment container class), for auxiliary equipments such as lightning conducter, earthing device, MonitoringEq (monitoring device), set up auxiliary equipment class, directly inherit in Asset class.Equipment container class extended model is as shown in accompanying drawing 4 (c).
(2) on-line monitoring information modeling
Power transmission and transformation line on-line monitoring system is divided into four parts: monitoring center, path monitoring extension set, communication network, monitoring information.Correspondingly, power transmission and transforming equipment on-line monitoring information model comprises on-line monitoring traffic model and on-line monitoring measurement model.
1) on-line monitoring traffic model
Power transmission and transforming equipment on-line monitoring traffic model is by SensorNode(sensor class), CommunicationLink(communication link class) and MonitoringTerminalUnit(monitoring unit class) form.First, the monitoring place that sensor is setting forms some sensor class, by communication link class, uses WiFi, Zigbee or Bluetooth transmission quantity of state, analog quantity or even picture format information to monitoring unit class.Then, monitoring unit class, by communication link, utilizes GSM/GPRS/CDMA to transfer data to monitoring center.Wherein, SetPoint(set point class) describe public information to the long-range setting of analog quantity parameter; ScanBlock(scanning block class) attribute comprise multiple sensor node, these nodes arrange different sampling time intervals according to different bandwidth; New class MeasurementTech(measurement technology class) describe the communication technology measuring and adopt, such as technical name, update date, developer's title etc.On-line monitoring traffic model is as shown in accompanying drawing 5 (a).
2) on-line monitoring measurement model
Newly-built OnlineMonitoringMeasurement(on-line monitoring measures class) and AssetOnlineMonitoringProperties(on-line monitoring assets parameter class) two classes describe, and the former inherits Measurement class, the latter associates Asset class.Again due to Measurement class association Asset class, model is covered and measures overall process.
On-line monitoring measures class and almost contains all classes that IEC61970 measures bag.Measurement(measures class) describe the essential information such as time, reason and the time interval measuring and occur; MeasurementType(measures class types) describe the measurement type of various practicality; MeasurementTech(measurement technology class) contain the Specific amounts survey technology that measurement process uses, can to various different on-line monitoring techniques expansion modeling; MeasurementValue(measuring value class) have recorded the different result measuring acquisition, associate modeling by OnlineMonitoringMeasurement class with it, and associate with Document class, form record document.LimitSet(restriction set class), AlarmGroup(alarm collection class), Unit(unit class), Control(controls class) and ValueAliasSet(setting value class) etc. class play booster action.LimitSet and AlarmGroup realizes warning function, will produce effectively report to the police when measuring value exceedes the limits value of setting, the organization of Unit specification metric data value and concrete form.
The first newly-built on-line monitoring of on-line monitoring assets parameter class measures class, and describe the on-line monitoring parameter of assets in detail, it associates with Asset class.Then, again IEC61970 is measured Measurement class in bag and be associated with Asset class, thus achieve and measure associating of nearly all class in bag, can accurate description measure occur time, the time interval, employing technology, measure the information such as cause and effect.On-line monitoring measurement model is as shown in accompanying drawing 5 (b).
(3) assets working model modeling
Assets job information and O&M procedural information.Equipment O&M process model is by newly-built Work(operation class) attached bag Work Model(assets working model) to this part content modeling.Work Model is by Work, WorkTask(task class) task is described, by Procedure(program class) and ProcedureValue(programmed value class) the step of value explanation work and the data value of each step generation.
For a plant maintenance task, first determine movable kind, more specifically described by Work and WorkTask.An activity is formed by more than one piece WorkTask gathering.WorkTask(task class) associate AssetList(assets inventory class), the class such as Crew, Capability and Condition.When determining a certain maintenance task, need be undertaken by job specification, step in job specification is defined jointly by ProcedureValue and Procedure: the basic step content of this active task of program class declaration, and programmed value class describes the relevant limit value in these steps, as pressurization value etc.Program class and MeasurementValue(measured value class simultaneously) associate, to record measured value.After activity completes, by DataSet(data set class) record action result.
The the patrolling and examining of various kinds of equipment, test, diagnose and movable basic class and the attribute with information model such as maintenance, after activity completes, InspectionDataSet(patrols and examines data set class), TestDataSet(test data set class), DiagnosisDataSet(diagnostic data set class), MaintenanceDataSet(overhaul data collection class) inherit in DataSet(data set class), record four movable data respectively.Meanwhile, set up DefectEvent(defect event class), FailureEvent(event of failure class) inherit in ActivityRecord(activation record class), for recording equipment deficiency and the equipment operation failure of discovery.As in defect event class, expand the attributes such as rejected region, defect content, defect level, defect rank, classification of defects, defect elimination conclusion.Newly-built DiagnosisEvent(diagnostic event class) inherit in ActivityRecord class, for the information such as time, object, technology, method that record diagnosis event occurs.Assets job information model as shown in Figure 6.
(4) environment and security information modeling
Environment and the security information model of existing power transmission and transforming equipment assets have generally only included Location(position class) and Zone(region class), but due to the singularity of transmission facility, it has inseparable relation with environmental information and public safety information.Environment and security information model are summarized as four class: WeatherAlert (weather warning class), WeatherForecast (weather forecast class), MicroClimate (microclimate class) and describe steal, report to the police, the unpredictable info class of UnpredictableEvent(of war etc.), the specifying information of class is as subordinate list B1.Asset, Zone, Location associate with above four new classes, and composition environment and security information model, further, by the attribute of these four classes of respective extension, property value and data layout, can complete the expansion modeling to environment and security information.Environment and security information model are as shown in Figure 7.
Claims (3)
1., based on a power transmission and transforming equipment panoramic information modeling method of CIM, it is characterized in that, comprise the following steps:
1) determine modeling object, judge the bag whether had in IEC61970, IEC61968 standard about described modeling object, if exist, then new class is set up in expansion; If do not exist, then the newly-built bag about described modeling object, and new class is set up in expansion in this bag;
2) judge whether the new class that above-mentioned expansion is set up exists in the bag of modeling object, if exist, then new attribute is set up in expansion; If do not exist, then this new class is set up in expansion, and the attribute of this new class is set up in expansion;
3) according to the practical application scene of modeling object in electric system, the new class that analysis description expansion is set up and the original CIM of IEC standard have the relation between class;
4) data type expanding the attribute set up is determined;
5) by above step, set up comprise, the power transmission and transforming equipment model of class, attribute and data type, carry out further summarizing to the new class and attribute of wherein expanding foundation and abstract, obtain abstract model, and the abstract model that standardizes.
2. the power transmission and transforming equipment panoramic information modeling method based on CIM according to claim 1, is characterized in that, in described step 3), the new class that expansion is set up comprises with the original CIM of the IEC standard relation had between class is polymerized, inherits and incidence relation.
3. the power transmission and transforming equipment panoramic information modeling method based on CIM according to claim 1 and 2, is characterized in that, in described step 5), the method for standardization abstract model is as follows:
1) be multiple classes with part attribute by class destructing more for attribute in abstract model;
2) redundant data in abstract model is eliminated;
3) class name of actual name as class is chosen, and all key nouns of the class definition that standardizes.
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