CN102004817A - International electrotechnical commission (IEC) 61850-7-420 standard-based distributed generating equipment modeling implementation method - Google Patents
International electrotechnical commission (IEC) 61850-7-420 standard-based distributed generating equipment modeling implementation method Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/18—Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]
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Abstract
The invention relates to an international electrotechnical commission (IEC) 61850-7-420 standard-based distributed generating equipment modeling implementation method. The method comprises the following processes of extracting, building, downloading and identifying a generating equipment model and the like. By the method provided by the invention, flexible and quick modeling can be performed on the distributed generating equipment; the technical problem of the standardization of communication and a control interface of the distributed generating equipment is solved, and the normalization and the standardization of information interaction between the distributed generating equipment and a system are promoted.
Description
Technical field
The present invention relates to a kind of power system component modeling implementation method, particularly based on the distributed power generation equipment modeling implementation method of IEC 61850-7-420 standard.
Background technology
In recent years, along with becoming increasingly conspicuous of energy crisis, the clean reproducible energy field is subjected to extensive concern, and (Distributed Energy Resource DER) inserts electrical network will to have increasing distributed power generation future.At present; the communication protocol of the most self-defining devices of the manufacturer of DER and other system elements (as monitoring, protective device etc.); and the communication interface type is different, and this system that will make is subjected to great restriction at aspects such as information integration, operation control and management and running.In the world, power department, operator and distributed power generation manufacturer have recognized the need to a unified international standard and solve that DER communicates by letter and the standardized problem of control interface, therefore IEC 61850 begins to include DER in standards system, and has carried out the previous work that some IEC61850-7-420 use in DER.Along with DER developing rapidly in China, the integrated system model and the corresponding standard information interface of power system components such as needs formulation DER, to realize critical functions such as the plug and play of each element in electric system, energy management, reduce difficulty, workload and the cost of the system integration.
At present, occurred research in the power system component modeling work, centered on the modeling and the protocol translation work of transformer substation system telemechanical, protective device mostly IEC 61850.Chinese patent CN 101706773A proposes to adopt the reorganization of XML information to realize transformer station's fast and automatic modeling, be applied to adopt the digital transformer substation and (the Intelligent Electronic Devices of the wall intelligent electronic device in traditional transformer station of IEC 61850 communications, IED) modeling, but must arrange the SAddr information format in advance, versatility is relatively poor.Chinese patent CN101035099A proposes a kind of general gateway design method from 103 agreements to IEC 61850 standard handovers that realize, finishes the protocol conversion to transformer station's wall product.Above-mentioned research does not relate to the DER equipment modeling as yet, for convenience quickly DER equipment is carried out modeling, the integrated difficulty of reduction system the present invention proposes a kind of DER equipment modeling implementation method based on the IEC61850-7-420 standard, uses with the standardization that promotes DER communication and control interface.
Summary of the invention
The present invention seeks in order to realize the logic modeling of DER equipment, the standardization of promotion DER communication and control interface is used, and avoids bringing huge difficulty, workload and cost for Automation of Electric Systems and information integration behind following a large amount of DER access electrical network.
The present invention is a kind of DER equipment modeling implementation method based on IEC 61850-7-420 standard, and described modeling implementation method comprises carries out model extraction, model construction, download and identification to DER equipment.
The specific implementation process is divided into following step:
1) DER equipment being carried out model extracts, actual functional capability according to described each building block of DER equipment, DER equipment is divided into parts such as system information model, access point (ECP) model, controller model, generating model, excitation system model, rotating speed/frequency adjustment system model, converters model and submodel, and extract logic node (the Logical Nodes that described each model comprises, LN), LN follows the regulation of IEC 61850-7-420 standard.
2) each LN that extracts based on DER equipment carries out model construction, and concrete construction step is:
A) set up the meta-model file, design data attribute (Data Attribute, DA), common data class (Common DataClasses, CDC), data object (Data Object, DO), structure such as LN, the design of corresponding each member's item is followed but is not limited to the regulation of IEC 61850 standards to DA, CDC, DO and LN.The LN structure is by the related single or multiple DO of member's item, and the DO structure is by the related CDC of member's item, and the CDC structure is by the related single or multiple DA of member's item, and the DA structure provides the internal storage data mapping address of member's item with memory model;
B) based on the XML Schema regulation of IEC 61850 standards issue, utilize the XML language, determine all DO information of its association the instantiation of LN structure;
C) with the CDC structure instantiation of DO association, determine the DA information that it is related;
D) with all DA structure instantiations of CDC association;
E) repeating step c)-step d) sets up all required CDC of model;
F) repeating step b)-step e) sets up all required LN of model;
G) utilize the XML language to increase the system information and the communication service of DER model, form complete XML model file.
3) the XML model file based on DER equipment generates IED initialization files, data set and file destinations such as report controll block file, control variable file and DO memory database mapped file, is downloaded to the corresponding IED of DER equipment.
4) IED identification DER model may further comprise the steps:
A) resolve the IED initialization files, finish relevant initial work, make up the complete tree terminate-and-stay-resident of DO according to DO memory database mapped file.
B) extract remote measurement DO, remote signalling DO, remote regulating DO and remote control DO among the LN by functional restraint, and realize the operate as normal of many kinds of communications applications interfaces of IED by self communication module.
C) IED digital sampling and processing work, the service data of gathering DER equipment writes corresponding remote measurement, remote signalling DO according to the internal storage data mapping address, and according to the deploy content of data set with report controll block file, triggers the DO data interaction.
D) the IED response command interrupts, and obtains command type and reference mark sequence number, and according to the deploy content of control variable file, the corresponding remote regulating of controlled some sequence number, the associated IED control module of remote control DO is operated, and realizes the management of DER equipment is controlled.
The present invention has following characteristics:
(1) sets up the model file of DER equipment,, shorten the R﹠D cycle editor's simple and fast of DA, CDC, DO and LN.
(2) multiple DER device model be can preset, modeling operation and model modification made things convenient for, portable strong.
(3) the present invention also can carry out quick modeling to other power system components when realizing the DER equipment modeling, and versatility and extendability are strong, and application is extensive.
Description of drawings
Fig. 1 is a DER equipment modeling process flow diagram of the present invention;
Fig. 2 is a DER model extraction-LN classification chart of the present invention;
Fig. 3 is a DER model construction synoptic diagram of the present invention;
Fig. 4 is DER of the present invention and IED application structure figure thereof;
Fig. 5 is DER equipment modeling of the present invention and realizes synoptic diagram;
Fig. 6 is a DER Model Identification synoptic diagram of the present invention.
Embodiment
Further specify the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 has described DER equipment modeling flow process of the present invention, is divided into model extraction, model construction, download and identification successively according to the realization order:
1) model extracts: the actual functional capability at DER equipment building block carries out the model extraction, forms required LN.
2) model construction: carry out model construction based on each LN that extracts, form the XML model file of DER equipment.
3) model is downloaded: generate file destination based on the XML model file, be downloaded to the corresponding IED of DER equipment.
4) Model Identification: IED resolves file destination, realizes the automatic identification to the DER device model.During the DER equipment work, IED resolves the image data of DER equipment, sets up the information communication with administrative center/other IED, and the control information that receives is resolved, and realizes the management control to DER equipment.
Fig. 2 has described DER model of the present invention and has extracted LN classification situation.The function of LN classification foundation DER equipment is divided, follow the regulation of IEC 61850-7-420 standard, generally include parts such as system information model, DER ECP model, DER controller model, DER generating model, DER excitation system model, rotating speed/frequency adjustment system model, converters model and submodel, wherein system information model LN comprises physical unit LPHD, common logic node and logic node zero LLN0; Submodel comprises the logical model that common utility appliance (or system) is corresponding, and as fuel system, accumulator, sequential, physical/electrical measurement, protection, control and switchgear etc., these submodels are the important ingredients of DER device model.The typical LN classification of DER device model is as shown in table 1.
Can make up complete DER device model based on each several part LN, typical model comprises CHP model, Photovoltaicsystem model, Fuel cell model and Reciprocating engine model etc., these models can be stored in corresponding preset model file, conveniently to call or edit-modify.
The typical LN classification of table 1
Fig. 3 has described DER model construction process of the present invention.DER equipment is carried out model construction based on the LN that is extracted, and concrete construction step is:
A) set up the meta-model file, design DA, CDC, structures such as DO, LN.The regulation of IEC 61850 standards to DA, CDC, DO and LN followed in the design of corresponding each member's item, the LN structure is by the related single or multiple DO of member's item, the DO structure is by the related CDC of member's item, the CDC structure is by the related single or multiple DA of member's item, and the DA structure provides the internal storage data mapping address of member's item with memory model.The functional restraint item of DA is mainly status information ST, measured value MX, controls CO, the SP that sets up an office, replace SV, configuration CF, describe DC, expand definition EX, buffer memory report BR, non-buffer memory report RP, record LG, group SG, editable group SE, the Goose control GO etc. that is provided be set; The trigger condition item of DO is mainly the data attribute value and changes dchg, metric attribute value variation qchg, data attribute value renewal dupd, integrality cycle IntgPd and total calling GI etc.
B) based on the XML Schema regulation of IEC 61850 standards issue, utilize the XML language, determine all DO information of its association the instantiation of LN structure.XML (the Extensible Markup Language) language (being extend markup language) that modeling process adopts, it is the strong instrument of present Processing Structure document information, below is that the XML of LN CSWI example describes:
<LNodeType?id＝″CSWI″lnClass＝″CSWI″>
<DO?name＝″Mod″type＝″INC″/>
<DO?name＝″Beh″type＝″INS″/>
<DO?name＝″Health″type＝″INS″/>
<DO?name＝″Loc″type＝″SPS″/>
<DO?name＝″Pos″type＝″DPC″/>
<DO?name＝″GrpAl″type＝″SPS″/>
...
</LNodeType>
C) with the CDC structure instantiation of DO association, determine the DA information that it is related;
D) with all DA structure instantiations of CDC association.Below be CDC INC case description:
<DOType?id＝″INC″cdc＝″INC″>
<DA?name＝″SBO″fc＝″CO″bType＝″VisString64″/>
<DA?name＝″Oper″fc＝″CO″bType＝″Struct″type＝″INCOperate″/>
<DA?name＝″Cancel″fc＝″CO″bType＝″Struct″type＝″INCCancel″/>
<DA?name＝″origin″fc＝″ST″bType＝″Struct″type＝″Originator″/>
...
</DOType>
E) repeating step c)-step d) sets up all required CDC of model;
F) repeating step b)-step e) sets up all required LN of model;
G) utilize the XML language to increase the system information and the communication service of DER device model, form complete XML model file.
Fig. 4 has described DER of the present invention and IED application structure thereof.The IED of each DER equipment configuration correspondence, realizing the automatic identification of its model, and the standardization of communication and control interface uses, and reduces the difficulty of DER equipment to the system integration.IED should possess digital sampling and processing, central processing unit, communication module, control module etc.; when the DER equipment access system; IED gathers electric parameters service data, state and configuration information and the protection information of DER equipment; and the information interaction between responsible data parsing, foundation and administrative center and other IED etc.; and will protect instructions such as action, DER control to transfer to DER equipment, realize management control to DER equipment.In actual applications, according to widening parts such as the configurable human-computer interaction module of the different I ED of functional requirement, data memory modules.
Fig. 5 has described DER equipment modeling of the present invention and realization situation.With the photovoltaic system is example, and according to modeling method shown in Figure 1, its modeling and implementation procedure are as follows:
1) model extracts: photovoltaic system equipment is divided according to function, can be divided into photovoltaic cell, photovoltaic controller, inverter, filtering circuit, isolating switch and access point, be extracted as DER generating model, DER controller model, converters model, submodel and DER ECP model respectively according to IEC 61850-7-420 standard, choose LN suitable in the each several part model in conjunction with the concrete application of DER equipment.
2) model construction: after obtaining the LN of equipment, set up the meta-model file, and, utilize the XML language with all LN and related DO, CDC, DA instantiation thereof, to make up the complete XML model file of DER equipment based on the XMLSchema regulation that IEC 61850 standards are issued.
3) model is downloaded: generate file destination based on DER equipment XML model file, and be downloaded to corresponding IED.Wherein, the IED initialization files indicate information such as this DER model file title, IED device name and access point; Data set indicates all dataset names, subordinate DO content and data set trigger condition etc. with report controll block file; Constraint condition is the DO of controllable state in the control variable document storage XML model file, indicates its domain-name position and controlled some sequence number; DO memory database mapped file indicates domain-name position, type and the memory database address etc. of all DO of LN.
4) Model Identification to DER equipment is finished in Model Identification: IED work, and its process as shown in Figure 6.Analytically dependent file destination during the IED equipment work, finish initial work, make up the complete tree terminate-and-stay-resident of DO according to DO memory database mapped file, and by remote measurement DO, remote signalling DO, remote regulating (establishing) DO, remote control DO etc. among the functional restraint extraction DER LN.
Wherein remote measurement DO mainly is responsible for gathering the electrical data such as power, voltage, electric current and frequency of DER; Remote signalling DO mainly is responsible for operation conditions and the protective device state of monitoring DER; Remote regulating (establishing) DO mainly is responsible for setting controlled variable and the service data of DER; Remote control DO mainly is responsible for setting protection and the operational mode of DER.Each DO function is looked actual demand can flexible configuration and expansion.
Realize the operate as normal of multiple communications applications interface by the IED device communication module.During the work of IED device data acquisition processing module, the image data of will being correlated with writes corresponding DO (being generally remote measurement DO and remote signalling DO) according to the internal storage data mapping address, and according to the deploy content of data set, with the DO data of the triggering mode trigger data collection appointment of agreement with report controll block file; When the order of IED device responds is interrupted, obtain control types (being generally remote regulating DO and remote control DO) and controlled some sequence number, and, controlled the associated control module of sequence number correspondence DO operated according to the deploy content of control variable file.
Claims (5)
1. distributed power generation equipment modeling implementation method based on IEC 61850-7-420 standard, it is characterized in that: described modeling implementation method comprises carries out model extraction, model construction, download and identification to distributed power generation equipment.
2. the distributed power generation equipment modeling implementation method based on IEC 61850-7-420 standard according to claim 1, it is characterized in that: described distributed power generation equipment is carried out that model extracts is function according to each building block of equipment, distributed power generation equipment is divided into system information model, the access point model, controller model, the generating model, the excitation system model, rotating speed/frequency adjustment system model, converters model and submodel, extract the logic node that above-mentioned each model comprises, logic node is followed the regulation of IEC 61850-7-420 standard.
3. the distributed power generation equipment modeling implementation method based on IEC 61850-7-420 standard according to claim 1, it is characterized in that: described distributed power generation equipment is carried out model construction based on each logic node that is extracted, concrete construction step is:
A) set up the meta-model file, structures such as design data attribute, common data class, data object, logic node;
B) based on the XML Schema regulation of IEC 61850 standards issue, utilize the XML language, determine all data object information of its association the instantiation of logic node structure;
C) with the common data class formation body instantiation of data object association, determine the data attribute information that it is related;
D) with all data attribute structure instantiations of common data class association;
E) repeating step c)-step d) sets up all required common data classes of model;
F) repeating step b)-step e) sets up all required logic nodes of model;
G) utilize the XML language to increase the system information and the communication service of distributed power generation device model, form complete XML model file.
4. the distributed power generation equipment modeling implementation method based on IEC 61850-7-420 standard according to claim 3, it is characterized in that: generate intelligent electronic device initialization files, data set and file destinations such as report controll block file, control variable file and data object memory database mapped file based on the XML model file, be downloaded to the corresponding intelligent electronic device of distributed power generation equipment.
5. the distributed power generation equipment modeling implementation method based on IEC 61850-7-420 standard according to claim 4 is characterized in that: the step of described intelligent electronic device identification distributed power generation device model is:
A) resolve the intelligent electronic device initialization files, finish relevant initial work, make up the complete tree terminate-and-stay-resident of data object according to data object memory database mapped file;
B), and realize the operate as normal of the multiple communications applications interface of intelligent electronic device by self communication module by telemetry object, remote signalling data object, remote regulating data object and remote-control data object in the functional restraint extraction logic node;
C) intelligent electronic device digital sampling and processing work, gather the service data of distributed power generation equipment, write corresponding remote measurement, remote signalling data object according to the internal storage data mapping address, and according to the deploy content of data set with report controll block file, the data interaction of trigger data object;
D) the intelligent electronic device response command interrupts, obtain command type and reference mark sequence number, and according to the deploy content of control variable file, the corresponding remote regulating of controlled some sequence number, the associated intelligent electronic device control module of remote-control data object are operated, realize management control distributed power generation equipment.
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| CN102169646A (en) * | 2011-04-13 | 2011-08-31 | 深圳市双合电气股份有限公司 | Dynamic data-based online load modeling system |
| CN102254074A (en) * | 2011-08-04 | 2011-11-23 | 上海思源弘瑞自动化有限公司 | Automatic modeling method of intelligent transformer substation spacer |
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| CN102662357A (en) * | 2012-03-30 | 2012-09-12 | 深圳供电局有限公司 | Integrated collection method for electric automobile charging station and integrated collection apparatus |
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| CN102169646A (en) * | 2011-04-13 | 2011-08-31 | 深圳市双合电气股份有限公司 | Dynamic data-based online load modeling system |
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| CN105790229A (en) * | 2014-12-15 | 2016-07-20 | 成都交大运达电气有限公司 | IEC61850-based feeder protection device for railway traction power supply system |
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