CN102647027A - Method for realizing construction of power quality data exchanging interface - Google Patents
Method for realizing construction of power quality data exchanging interface Download PDFInfo
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- CN102647027A CN102647027A CN2012101225662A CN201210122566A CN102647027A CN 102647027 A CN102647027 A CN 102647027A CN 2012101225662 A CN2012101225662 A CN 2012101225662A CN 201210122566 A CN201210122566 A CN 201210122566A CN 102647027 A CN102647027 A CN 102647027A
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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
- Y04S10/40—Display of information, e.g. of data or controls
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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
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention relates to a method for constructing a power quality data exchanging interface, which is used in a net province or regional power quality online monitor system based on the standard of IEC61970. The method comprises the steps of: (1) developing an adapter suitable for the field specification; (2) system modeling, including: plotting a single line drawing, exporting an RDF file, and importing the model into a model database according to the RDF (resource description framework) file; and (3) collecting data, including collecting historical data and real-time data. The method provided by the invention can provide standard GID (group identification) service for the online monitor system so as to realize standardized conversion to solve the compatibility problem of products from different manufacturers and to realize plug-and-play function of a nonstandard terminal, thereby resolving the contradiction between data isolation and data non-uniformity, and facilitating intercommunication among the systems.
Description
Technical field
The present invention relates to a kind of be applied in based on the net of IEC61970 standard economize or regional Electric Power Quality On-line Monitor System in set up the method for power quality data Fabric Interface.
Background technology
The basis of intelligent grid is distributed data transmission, calculating and control technology.Adopted theoretical with the advanced distributed system technology of object-oriented systems; Interconnecting between " plug and play " of assurance realization monitoring terminal and the system; Information resources the whole network is shared; Avoid forming information island and cause overlapping investment and waste, the Electric Power Quality On-line Monitor System of therefore building unified standard is towards intelligent grid, an urgent demand of on-demand data enabling capabilities is provided.
At present, because the communication protocol disunity that the different manufacturers power quality monitoring device adopts, the standard of following is also inconsistent, and this causes occurring in the electric energy quality monitoring system process of construction poor compatibility between the devices from different manufacturers, the data sharing difficulty.Problems the such as therefore later maintenance of monitoring equipment too much depends on each producer, causes sizable obstacle for the work of quality of power supply Treatment Analysis, and the distributed-network monitoring platform operational efficiency is low.
Summary of the invention
The object of the inventionJust be to provide a kind of method of setting up the power quality data Fabric Interface; The GID service of standard is provided for on-line monitoring system; This service will make up process simplification, the standardization of component software, avoid developing Different software and will satisfy multiple or even afoul data model, thereby realize the standardization conversion; Solve the compatibility issue of devices from different manufacturers; Realize " plug and play " at non-standard terminal, thereby dissolve the contradiction that data isolate and can not be unified, help interconnecting between system.
Technical scheme of the present inventionFor: a kind of method of setting up the power quality data Fabric Interface, its step is following:
The first step, exploitation are fit to the adapter of on-the-spot stipulations;
To concrete " adapter assembly " of the non-standard terminal installation exploitation of difference; Earlier stipulations are progressively resolved; To the corresponding protocol adapter of each different model equipment development, said adapter assembly is meant protocol adapter, earlier different stipulations is progressively resolved; Again with each instruction or statement in the IEC61970 standard language translation stipulations, to reach the purpose mutual with monitoring terminal set; This is equivalent to synchronous translation (standard is an English, and that Interpreter Officer of English translated in Chinese, French etc.);
Second step, system modelling:
(1), draws line chart
According to the winding diagram of transforming plant primary equipment, use the general modeling tool tables of equipment line chart of transformer station that draws, simultaneously for each equipment, line chart etc. are provided with resource identifier, be used for this object of unique identification; Said transforming plant primary equipment mainly comprises equipment such as transformer, switch, disconnecting link, PT, bus, knows all that in power industry said general modeling tool is to be used to draw line chart, and the modeling specific purpose tool of generation model file,
In this instrument, have the graphic plotting tool button, can conveniently draw line chart, the line chart of completing can import in the model database;
(2), derive the RDF file.
With line chart preservation the becoming RDF file of finishing that meets resource description framework; It utilizes URIs and tag identifier resource object based on the grammer of XML, and it is mapped in the types of models.Such as the interval of finding in the line chart; The attribute information at this interval and relational structure can be saved in the RDF file in < cim:Bay>label; It comprises the plurality of sub label; Label < cim:IdentifiedObject.name>expression title at interval; Label < cim:IdentifiedObject.description>expression description at interval, label < cim:Bay.MemberOf_VoltageLevel>has been represented the electric pressure at place at interval, the equipment that comprises in label < cim:EquipmentContainer.Contains_Equipments>expression at interval.
(3), according to the RDF file model is imported in the model database
The RDF file of deriving is saved in the relation table of database; The corresponding table of each data type, corresponding to table Bay, this shows the attribute information and the inclusion relation of memory gap such as at interval.Rid field store in the table unique Digital ID at interval; The uri of uri field store resource (being character string) is function type attribute (type is " http://www.w3.org/2002/07/owl#FunctionalProperty ") as if it, then corresponding field in table; Mapping ruler does; Field string behind the processing attribute uri#, if contain in the character string ' .' or '-' with ' _ ' replacement, the field string after the processing is the field title.Data can be deleted, upgraded, add to his-and-hers watches.
Model database is described the logical construction and the membership credentials of all objects in strict accordance with IEC61970 CIM model standard, and the main node of construction system resource topology structure is the necessary links that realize information processing to the query analysis of these objects.
The 3rd step, image data:
Data acquisition is divided into historical data collection and real-time data acquisition two parts.Wherein:
(1), the mode of historical data service image data is divided into two kinds:
1) also be the image data the database that carries on the monitoring terminal set from slave unit, the database file of promptly directly visiting the monitoring point obtains Monitoring Data.
2) provide the device talk stipulations to set up TCP according to producer or UDP is connected, send the order of image data then to equipment with equipment, the time range of specifying Monitoring Data to produce simultaneously, afterwards, equipment sends corresponding Monitoring Data as command response.
The data based configuration file that collects through above dual mode can find its preservation position corresponding in database, is saved in historical data base then.
(2), the real-time data acquisition service is to set up TCP with equipment or UDP is connected according to the device talk stipulations that producer provides; Send order then and return image data; The data that collect are write in the data transmission bus; Be distributed to client application by data/address bus, be saved in simultaneously in the database as historical data, programs is analyzed, inquires about and statistics, form.Data transmission bus is to guarantee that real time data is in time sent to one of key element in the application system.It provides data-transformation facility, and the Monitoring Data of equipment is transferred in the client application.
Of the present invention
Beneficial effectFor:
Advantage is following:
(1) uniformity and favorable compatibility.
Set up the power quality data Fabric Interface with the IEC61970 standard, make Electric Power Quality On-line Monitor System possess favorable compatibility, the system that is easy to constantly expands.Next adopts uniform platform and model, can realize that the height of electric network information is integrated and shared, the management of accomplishing standardization, standardize and becoming more meticulous.
(2) realization is comparatively simple.
The final data exchange interface of realizing is realized very simple, only needs the considerably less interface of definition, just can satisfy the demand of system's visit, the integration problem that resolution system is required.Simultaneously, these interfaces can be applied in the ripe data base management system of non-commercialization, and it more can satisfy the data characteristics and the access mechanism of this on-line monitoring system.
(3) performance is efficient.
Because the real-time requirement amount of on-line monitoring system is big, need often to produce and carry out the running decision-making in the strict time section.This characteristic requirements access interface possesses higher execution efficient, and for this reason, data exchange interface has been optimized data access performance greatly, minimizes network delay.
(4) event filtering mechanism.
By the strobe utility of the free customization incident of client, server only sends incident and the warning of satisfying filtercondition, satisfies multiple actual needs when reducing system loading again.
Realization through data exchange interface; Guaranteed interconnecting between " plug and play " and the different system of monitoring terminal; Making that distributed-network monitoring platform has more comprehensive information resources and realize that the whole network is shared, is the essential condition of building real standardized Electric Power Quality On-line Monitor System.
Technique effect
1, based on GID interface and CIM model, different for each application function of quality of power supply system provides some general technical supports according to each application function, can improve 2-4 development efficiency doubly, economize on resources, reduce development and maintenance cost.
2, discharge the part hardware resource of monitoring terminal set, make that the monitoring terminal set function is more single, need not regularly go to generate data file, improve the monitoring efficient of monitoring terminal apparatus.
3, the power quality data Fabric Interface of unified standard has been broken away from the past pattern through file transfer (if pass through file transfer; Almost need check the file on the server every day; File is too many, and next needs viewing files to account for the disk space situation, and is extremely inconvenient); Reduce the maintenance workload of server 1/3, improved nearly 2 times of left and right sides data transmission efficiencys.。。4, the power quality data Fabric Interface of unified standard makes the later maintenance of monitoring terminal set no longer limit to certain producer, and the monitoring terminal between the different manufacturers can exchange, convenient later maintenance.
5, the power quality data Fabric Interface of unified standard can be used for supporting to insert the intellectual monitoring equipment based on IEC 61850 standards; Guarantee the sustainable development that quality of power supply on-line system is built; And interconnecting between realization and other nonelectrical energy quality systems; As: systems such as MIS, SCADA/EMS, thus realize that the data resource height is shared.
Description of drawings
Fig. 1 is the flow chart of the said method of the embodiment of the invention;
Fig. 2 is the hardware configuration sketch map of the embodiment of the invention;
The computer sectional drawing of transformer station's line chart that Fig. 3 provides for said certain electric company of the embodiment of the invention;
Fig. 4 is provided with association attributes computer sectional drawing for the said modeling tool rendering apparatus of embodiment of the invention element;
Fig. 5 draws the line chart computer sectional drawing that forms for the general modeling tool of the said usefulness of the embodiment of the invention;
Fig. 6 describes diagrammatic sketch for the interval in the said RDF file of the embodiment of the invention;
The description diagrammatic sketch of Fig. 7 for measuring in the said RDF file of the embodiment of the invention;
Fig. 8 is a stored voltage grade attribute information computer sectional drawing in the said historical data base of the embodiment of the invention;
Fig. 9 is data computer sectional drawings such as the said voltage deviation of the embodiment of the invention, the total percent harmonic distortion of voltage;
Figure 10 is the said harmonic current phase angle of an embodiment of the invention mean value computer sectional drawing;
Figure 11 is the said incident computer sectional drawing that collects of the embodiment of the invention;
Figure 12 is the said real-time monitoring state amount computer sectional drawing of the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Present embodiment is based on communication and history server and 32-bit Windows Server 2003 operating systems; Model data store is used PostgreSQL; History data store is used Oracle Berkeley DB Database Systems, and its system framework comprises (referring to Fig. 2) such as power office's server 1, fire compartment wall 2, router three, switch 4, communication server 5, work stations 6.
The concrete steps of the embodiment of the invention are following: (can with reference to figure 1)
The first step, exploitation are fit to the adapter of on-the-spot stipulations;
To the Anhui development equipment development of somewhere electric company concrete " adapter assembly "; Earlier stipulations are progressively resolved; To the corresponding protocol adapter of each different model equipment development, said adapter assembly is meant protocol adapter, earlier different stipulations is progressively resolved; Again with each instruction or statement in the IEC61970 standard language translation stipulations, to reach the purpose mutual with monitoring terminal set; This is equivalent to synchronous translation (standard is an English, and that Interpreter Officer of English translated in Chinese, French etc.);
Second step, system modelling:
(1) draw line chart:
Primary equipment winding diagram (referring to Fig. 3) by certain transformer station under the electric company; With " general modeling tool ") the drafting line chart; The attribute information of each equipment is set simultaneously, and such as (referring to Fig. 4) such as title, descriptions, the final drafting forms complete line chart (referring to Fig. 5).Said general modeling tool is to be used to draw line chart, and the modeling specific purpose tool of generation model file, has the graphic plotting tool button in the instrument, can conveniently draw line chart, and the line chart of completing can import in the model database.
(2) set up model
According to transformer station's line chart (referring to Fig. 5), derive RDF file (referring to Fig. 6, Fig. 7).Resource object in the line chart and attribute and relational structure are by complete being saved in the RDF file, and be in the RDF file, with clear all information of having described model of XML form, as shown in Figure 6:
2 < cim:IdentifiedObject.name >, < cim:IdentifiedObject.description>are Name and Description at interval;
2 cim:Bay.MemberOf_VoltageLevel are at interval affiliated electric pressure;
The tie point of 2 cim:ConnectivityNodeContainer.ConnectivityNodes for comprising at interval;
The equipment of 2 cim:EquipmentContainer.Contains_Equipments for comprising at interval.
Thus, set up the incidence relation and the attribute information of each object in the model file.
(3) according to the RDF file model is imported in the model database
The object of all labels in the RDF file of deriving is saved in according to model structure one by one in the relation table of database (referring to Fig. 8).Object in the model is preserved into corresponding record in database, in order to inquiry and maintenance.
The 3rd step:
(1) historical data collection
A. set up configuration file
Set up configuration file according to the circuit of equipment upper channel connection and the measurement in 61850 models, form is devices={ " device type: // Device IP: PORT COM ": { " channel number ": { " measure and describe ": measure corresponding itemid}}}.
In configuration file, be configured to example: devices={ " PSNET3: // 192.168.1.133:1090 " with A phase phasor power factor: { " 1 ": { " power_factor_a ": ((8000,1208000000001), (5000; 11945)), } } }, just represent that 192.168.1.133 is the equipment of Anhui development; The communication terminal slogan is 1090; This equipment is Lan Cun transformer station, the 110Kv1PT/113 of the corresponding Lan Cun of passage 1 transformer station at interval, this is described as power_factor_a at interval; In model, find this pairing Entry ID of power_factor_a at interval then, write in the configuration file.
B. data acquisition
Connect with the database on the equipment, the table relation and the list structure that provide in the device talk stipulations that provide according to producer obtain each measured value in each passage: frequency, voltage/current negative phase-sequence degree of unbalance; Voltage/current positive sequence amplitude, voltage/current zero sequence amplitude, voltage/current amplitude; Voltage/current three-phase fundamental voltage amplitude and phase place, 2--50 voltage containing ratio/current amplitude and phase place, three-phase idol time resultant distortion rate; Strange resultant distortion rate of three-phase, length/weak point flickering amplitude also can collect some relevant informations of transient event; Like event type, time started, concluding time (referring to Figure 11).
C. data processing
Carry out unit conversion gathering the data of coming up; Keep consistent with the unit of client data exposition, such as, the unit of the harmonic phase that provides in the communication protocol that producer provides is a radian; And the degree of being that client shows is used will convert radian into angle so; In addition, also will be according to the measurement that does not directly provide on some equipment of the data computation that collects on the slave unit: three phase harmonic is meritorious/idle/apparent power, three-phase is meritorious/idle/apparent power always; The three-phase first-harmonic is gained merit/idle/apparent power, three-phase activity coefficient, three-phase phasor power factor; The total harmonic wave of three-phase is gained merit/idle/apparent power; Three-phase voltage/current harmonics resultant distortion rate, strange time/idol of three-phase voltage/current harmonics time total humorous wave amplitude (referring to Fig. 9, Figure 10) is such as calculating three-phase fundamental power power factor; Can only obtain the voltage and current amplitude and the phase place of three-phase first-harmonic on the equipment, the computing formula of power factor is:
P is an active power in the formula, and S is an apparent power, and Φ is the phase difference of voltage and current
P is an active power in the formula, and U is the phase voltage amplitude, and I is a current amplitude, and Φ is the phase difference of voltage and current
S is an apparent power in the formula, and U is the phase voltage amplitude, and I is a current amplitude.
D. data are corresponding
Corresponding calculating good measured value with Entry ID in the configuration file; For example; Calculate A phase phasor power factor, by transformer station (PSNET3: // 192.168.1.133:1090), (1) and measure and describe (power_factor_a) and find its corresponding Entry ID in the database storage record at interval.
E. storage
Find table corresponding in the database according to the data Entry ID, these clauses and subclauses are saved in the respective record.
(2) real-time data acquisition
A. the generation of configuration file.
Configuration file according to part of data acquisition generates the configuration file that the confession data transmission bus carries out data map, and each corresponding record is called a theme in the configuration file, and sets QoS (service quality) parameter.A phase phasor power factor such as top is described below in the configuration file of data transmission bus:
MVTAnalogValue?=?{"PSNET3://192.168.1.133:1090/1/power_factor_a":None}。
And if these clauses and subclauses are arranged also in the configuration file of application program:
MVTAnalogValue?=?{"PSNET3://192.168.1.133:1090/1/power_factor_a":None}。
Then monitoring of equipment to A phase phasor power factor can send in the application program through transfer bus.
B. data acquisition.
After equipment is set up TCP and is connected, send gather real time data command word to equipment, equipment can be resolved this order, returns nearest 3 seconds real time data message then.
C. data processing.
Resolve the real time data message that equipment returns by the communication protocol that producer provides.Real time data has: humorous wave amplitude of voltage/current and phase place, length/weak point flickering amplitude, frequency, tri-phase unbalance factor.Search measurement pairing description in the configuration file of data transmission bus.
D. data are sent.
The transmission service interface that calls data transmission bus with data send to the client application system (
Referring to Figure 12).Data transmission bus is to guarantee that real time data is in time sent to one of key element in the application system.Application program all is converted into service quality QoS (Quality of Service) parameter to the conditions of demand of resource and the available situation of resource, optimizes the speed and the data confidence level of service transmission with this.
Claims (2)
1. method of setting up the power quality data Fabric Interface is characterized in that the step of this method is following:
The first step, exploitation are fit to the adapter of on-the-spot stipulations;
To concrete " adapter assembly " of the non-standard terminal installation exploitation of difference; Earlier stipulations are progressively resolved; To the corresponding protocol adapter of each different model equipment development, said adapter assembly is meant protocol adapter, earlier different stipulations is progressively resolved; Again with each instruction or statement in the IEC61970 standard language translation stipulations, to reach the purpose mutual with monitoring terminal set;
Second step, system modelling:
(1), draws line chart
According to the transforming plant primary equipment winding diagram, use the general modeling tool tables of equipment line chart of transformer station that draws, simultaneously for each equipment, line chart etc. are provided with resource identifier, be used for this object of unique identification.
(2), derive the RDF file
With line chart preservation the becoming RDF file of finishing that meets resource description framework; It utilizes URIs and tag identifier resource object based on the grammer of XML, and it is mapped in the types of models;
(3), according to the RDF file model is imported in the model database
The RDF file of deriving is saved in the relation table of database; The corresponding table of each data type, such as interval correspondence table Bay, the attribute information and the inclusion relation of this table memory gap, its data structure is in strict accordance with IEC61970 CIM model standard;
The 3rd step, image data:
Data acquisition is divided into historical data collection and real-time data acquisition two parts, wherein:
(1), the mode of historical data collection is divided into two kinds:
(1) slave unit also is an image data in the database that carries on the monitoring terminal set, promptly directly visits the database file of monitoring point, obtains Monitoring Data;
(2) provide the device talk stipulations to set up TCP according to producer or UDP is connected, send the order of image data then to equipment with equipment, the time range of specifying Monitoring Data to produce simultaneously, afterwards, equipment sends corresponding Monitoring Data as command response;
(3) historical data that above dual mode is collected can find its preservation position corresponding in database according to configuration file, is saved in historical data base then;
(2), real-time data acquisition is to set up TCP with equipment or UDP is connected according to the device talk stipulations that producer provides; Send order then and return image data; The data that collect are write in the data transmission bus; Be distributed to client application by data/address bus, be saved in simultaneously in the database as historical data, programs is analyzed, inquires about and statistics, form; Said data transmission bus is to guarantee that real time data is in time sent to one of key element in the application system, and it provides data-transformation facility, and the Monitoring Data of equipment is transferred in the client application.
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Cited By (6)
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| CN103023740A (en) * | 2012-12-28 | 2013-04-03 | 宁波电业局 | Information interaction bus system and electric power data transmission method |
| CN103577563A (en) * | 2013-10-24 | 2014-02-12 | 国网浙江省电力公司 | Substation model migrating method |
| CN103605020A (en) * | 2013-11-14 | 2014-02-26 | 广东电网公司电力科学研究院 | Processing method and apparatus for electric energy quality data |
| CN103927385A (en) * | 2014-04-25 | 2014-07-16 | 国家电网公司 | Unifying method and device of data model |
| CN108092809A (en) * | 2017-12-12 | 2018-05-29 | 南京国电南自电网自动化有限公司 | Intelligent substation network switch modeling method and asset of equipments model mapping method |
| CN113960362A (en) * | 2021-12-22 | 2022-01-21 | 深圳市聚能优电科技有限公司 | Early warning method, system, equipment and storage medium of energy storage EMS |
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| CN103023740A (en) * | 2012-12-28 | 2013-04-03 | 宁波电业局 | Information interaction bus system and electric power data transmission method |
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| CN108092809A (en) * | 2017-12-12 | 2018-05-29 | 南京国电南自电网自动化有限公司 | Intelligent substation network switch modeling method and asset of equipments model mapping method |
| CN113960362A (en) * | 2021-12-22 | 2022-01-21 | 深圳市聚能优电科技有限公司 | Early warning method, system, equipment and storage medium of energy storage EMS |
| CN113960362B (en) * | 2021-12-22 | 2022-03-11 | 深圳市聚能优电科技有限公司 | Early warning method, system, equipment and storage medium of energy storage EMS |
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