CN201518429U - Electric energy qualitative data concentrator for digitalization transforming plant - Google Patents
Electric energy qualitative data concentrator for digitalization transforming plant Download PDFInfo
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- CN201518429U CN201518429U CN2009201895992U CN200920189599U CN201518429U CN 201518429 U CN201518429 U CN 201518429U CN 2009201895992 U CN2009201895992 U CN 2009201895992U CN 200920189599 U CN200920189599 U CN 200920189599U CN 201518429 U CN201518429 U CN 201518429U
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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
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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
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- 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
- Y04S10/50—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
Abstract
An electric energy qualitative data concentrator for a digitalization transforming plant is composed of a basic function subsystem (1) and an OPC service function subsystem (2) based on IEC61850, wherein the basic function subsystem (1) is composed of a system main control module (3), a process management module (4), a protocol conversion module (5), a real-time data processing module (6), a data format conversion module (7), a historical data storage module (8), a system configuration maintenance module (9) and a data forwarding module module (10), the OPC service function subsystem (2) based on IEC61850 is composed of a data modeling module (11), a model mapping module (12) and an OPC access interface module (13). The utility model follows the IEC61850 modeling rules, converts private data into an electric energy qualitative data object model according to the IEC61850 standard and maps into uniform OPC data format, provides OPC open application program interfaces, and implements management and application of various isomerized electric energy quality monitoring data.
Description
Technical field
The utility model relates to a kind of power quality data concentrator that is used for the digitlization power station, belongs to the intelligent electronic device technical field.
Background technology
Continuous growth along with electricity needs; various power electronic equipments, nonlinear-load and impact load constantly increase in the system; make that harmonic content, three-phase in the electrical network is asymmetric, power quality index such as voltage fluctuation and flickering is serious day by day; cause the misoperation of transformer heating, network loss increase, measuring instrument error, the reduction of operational outfit life-span, relaying protection and automatic control equipment and communication interference etc., the normal operation of electric power system is caused serious harm.
Electric energy quality monitoring plays an important role in system's operational management and technical supervision as a key link of electric energy quality monitoring, also is the necessary condition of the good power supply quality of assurance system simultaneously.The foundation of powerful electric energy quality monitoring network, can realize the centralized management of electrical network power quality index, comprehensively the power quality index in the tracking system running changes, the supervision pollution sources of electrical energy quality, provides the analysis foundation for the transition effect in the operation of power networks process and various failure condition, and further create conditions for improving the overall power quality index of electrical network, safety and economic operation to safeguards system electric equipment and various power consumption equipments, improve stability of power system, have remarkable economic efficiency and social benefit.
Three main features of digital transformer substation are exactly " primary equipment intellectuality; secondary device networking; meet IEC 61850 standards ", be that the interior information of digital transformer substation is all accomplished digitlization, the information transmission realizes networking, traffic model reaches standardization, makes the unified information platform of various device and function sharing.It is the important step that realizes the electrical network electric energy quality monitoring that electric energy quality monitoring is carried out in the digitlization power station.
Electric energy quality monitoring system mainly is made of two subsystems of main website and substation.The main website subsystem is by electric power dedicated network or public telephone network, and power quality data and the situation of change obtained of the power quality monitoring device of monitoring sub-station subsystem in real time to the data of collecting processings of classifying, forms and report automatically.Along with electric energy quality monitoring continuous advancement in technology and perfect, various device and system have appearred in the electric energy quality monitoring field.Because lack unified standards and norms, the equipment of different manufacturers adopts different physical interface (for example RS232/RS485 interface and RJ45 Ethernet interface) separately, communication protocol varies especially.The hardware standard disunity, particularly communication protocol is incompatible, information content complexity, form differ, the user has very strong repellency between the equipment of different manufacturers, system, to such an extent as to can only select the ancillary equipment of the coupling that provided by same developer to realize the structure of electric energy quality monitoring system usually.In case system's typing, the user just can only only be confined to intrinsic function of system and characteristic, can't carry out the improvement of original function and the increase of new function, thereby the system that makes can't adapt to the nowadays fast-changing market demand, be difficult to realize the shared of various system resources, system monitoring cost height.
At the heterogeneous power quality monitoring device integration problem, academia and industrial quarters have been carried out extensive studies both at home and abroad, and have proposed two kinds of solutions: a kind of is the close coupling pattern, and another kind is the loose coupling pattern.All there is following defective in two kinds of methods: (1) does not all have versatility and exploration, can not realize the main website of different manufacturers and the seamless interlinkage between the substation, intercommunication, the interface requirements of future can not be satisfied, the requirement that following several years system's service requirement and power informatization are transformed can not be adapted to based on the digital transformer substation of IEC 61850; (2) expansion that is unfavorable for system is upgraded, and finally can cause the repeated construction of whole system, causes the serious wasting of resources.
Summary of the invention
The purpose of this utility model is, for solving the problems of the technologies described above, IEC 61850 standards and OPC are organically combined, a kind of power quality data concentrator that is applied to digital transformer substation is provided, reception is from the data of various heterogeneous power quality monitoring devices, carry out data map after, set up IEC 61850 quality of power supply object models, by the OPC service interface, the unified IEC 61850 that externally provides serves.
The technical solution of the utility model is:
Described power quality data concentrator is formed by the basic function subsystem with based on the OPC service function subsystem of IEC 61850.
The basic function subsystem is made of the main system control module and seven parts such as management of process module, protocol conversion module, real time data processing module, Data Format Transform module, history data store module, system configuration maintenance module and data forwarding module that adopt on-the-spot complicated communication protocol to carry out data acquisition and the concentrated management function of information.Main system control module and management of process module are responsible for the coordination of each module; Protocol conversion module is used for the field electric energy quality monitoring device is connected by relevant communication protocol, finishes communication data reception and the control of system to on-the-spot each equipment; The real time data processing module carries out the data source entering real-time data base again after the processing such as upper and lower limit inspection, range conversion, simple filtering, evolution according in advance setting; The Data Format Transform module is automatically converted to the file of IEEE-COMTRADE reference format with the recorder data that collects, in case of necessity can be by at interval Wave data being decomposed or recombinating; The history data store module provides the local data backup, guarantees not lose any data when communication disruption, and the assurance critical event was not lost when break period was long; The system configuration maintenance module provides maintenance works such as storage principle, messaging parameter, communicate configuration; Data forwarding module is with data acquisition in the real-time data base or artificial calculate, the real time data of statistics is in the mode of " configuration ", by specifying or the communications protocol of standard is connected with equipment with other system.
OPC service function subsystem is made up of OPC service function partial data MBM, model mapping block and OPC access interface module based on IEC 61850.OPC service function subsystem is used to receive and handles from different protocol datas, and is converted to unified data output.Wherein the data modeling module converts private data to the power quality data object model that meets the IEC61850 standard; The model mapping block is mapped to unified OPC data format with the IEC61850 model; OPC access interface module is followed the OPC standard, and OPC is provided open application interface.
The utility model adopts the heterogeneous power quality monitoring device integrating method based on IEC 61850 and OPC, and promptly (1) adopts the privately owned communication protocol of each manufacturer, obtains the private data that heterogeneous power quality monitoring device is gathered; (2) follow IEC 61850 modeling rules, private data is converted to the power quality data object model that meets IEC 61850 standards; (3) according to the mapping rule, IEC 61850 models are mapped to unified OPC data format, promptly adopt IEC 61850 will become unified OPC data format, to satisfy requirement integrated between different system, the monitoring equipment from the data conversion of dissimilar equipment; (4) follow the OPC standard, OPC is provided open application interface.
Compare with existing method, the power quality data concentrator that is applied to digital transformer substation that the utility model provides has following advantage: 1. can realize the data communication of various heterogeneous power quality monitoring devices, interconnect, can significantly improve integrated efficient, more can satisfy demand existing and that constantly occur in the future; 2. shielded underlying device, system communication connection and exchanges data cost have been reduced, make the replacing of single monitoring equipment not have influence on the running of whole monitoring system, make the substation subsystem have the good network linkage function, can use procotol flexibly according to network condition, also possess simultaneously and ability provincial, the local level master station communication; 3. mutual quality of power supply information is pressed standard IEC 61850 model digitlizations between main website and substation, realization information sharing between operational system and other back-up systems, reduce repeated construction and investment, the compatibility of raising equipment, system and stable reduces the monitoring cost; 4. reduce investment risk and cost of investment, allow progressively upgrading rather than abandon original investment fully of existing electric energy quality monitoring system, and also offer convenience for digital transformer substation automated system transformation in the future; 5. data gateway provided by the present invention has abundant communication protocol and interface, can connect plurality of devices.
The utility model is applicable to the centralized management of the power quality data in digitlization power station.
Description of drawings
Fig. 1 is a basic composition structural representation of the present utility model;
Fig. 2 flow chart of data processing schematic diagram of the present utility model;
Mapping schematic diagram between Fig. 3 private data and IEC 61850 data;
Fig. 4 is the mapping schematic diagram between IEC 61850 models and the OPC model;
Fig. 5 is for being networking schematic diagram of the present utility model;
Picture in picture number is expressed as: (1) basic function subsystem; (2) OPC service function subsystem; (3) main system control module; (4) management of process module; (5) protocol conversion module; (6) real time data processing module; (7) Data Format Transform module; (8) history data store module; (9) system configuration maintenance module; (10) data forwarding module; (11) data modeling module; (12) model mapping block; (13) OPC access interface module; (14) power quality data concentrator; (15) RS232/485 interface; (16) Ethernet interface; (17) power quality monitoring device; (18) Ethernet interface; (19) wan interface; (20) digital transformer substation automated system; (21) main website subsystem.
Embodiment
The basic composition structure of the utility model embodiment as shown in Figure 1, present embodiment power quality data concentrator is mainly formed by basic function subsystem (1) with based on the OPC service function subsystem (2) of IEC61850.Wherein basic function subsystem (1) is made of parts such as main system control module (3), management of process module (4), protocol conversion module (5), real time data processing module (6), Data Format Transform module (7), history data store module (8), system configuration maintenance module (9) and data forwarding modules (10), and on-the-spot complicated communication Protocol Conversion and information management controlled function are finished in each functional module overall co-ordination.OPC service function subsystem (2) based on IEC61850 mainly is made of data modeling module (11), model mapping block (12) and OPC access interface module (13).Owing to adopted modular design, these subsystems can increase or reduce as required easily.
The utility model adopts a kind of heterogeneous power quality monitoring device integrating method based on IEC 61850 and OPC, and the mapping relations between the protocol semantics are converted into separately mapping relations with IEC 61850, and specific implementation all will be mapped to the OPC interface.As shown in Figure 2, flow chart of data processing comprises with the lower part:
1, adopts the privately owned communication protocol of each manufacturer to obtain the power quality data that field monitoring equipment is gathered, set up the private data storehouse;
2, follow IEC 61850 modeling rules, the power quality data of frame format is mapped as the data object model of the data object level relation that meets the IEC61850 standard;
Because the proprietary protocol of field apparatus is signal-oriented point table, linear and plane mostly at present, and the data model of IEC61850 is object-oriented and solid, just there be the transfer process of proprietary protocol to IEC 61850 data models in this, relate to linear signaling point table, according to the object-oriented way of IEC 61850 process of modeling again, this is a kind of process from the plane to the solid, as shown in Figure 3.
3, according to the mapping between mapping rule realization IEC 61850 models and the OPC model;
Different with the data model of IEC 61850, opc server is made of Server (server) object, Group (data set) object and Item (data item) object.Server object has comprised the information about server, and as the container of data set object; The data set object is as the container of data item object, and the method for tissue and visit data item is provided; Being connected of data source in each data item representative representative and the server, all are all undertaken by the data set object the visit of item.The attribute relevant with each data item comprises: value, quality and time stamp.This just need carry out the mapping between IEC61850 model and the OPC model.At first carry out in the IEC61850 data model logical node and data to the mapping of MMS; On this basis, each simple MMS type is mapped to the data item object of an OPC.As shown in Figure 4, MMS variables L LN0$ST$Diag$stVal is mapped to the OPC data item that name is called ctlModel under the field object PQMR, the ItemID attribute of this object is PQMR.LLN0.ST.Diag.stVal, and PQMR branching representation domain name claims, LLN0 presentation logic node zero.Fig. 3 left side is the structure of OPC data item, and the right is the MMS object.
4, follow the OPC standard, for OPC client provides OPC access interface;
According to the difference of function, the OPC interface interface that is divided three classes again is respectively: (a) OPC data access interface (OPC Data Access Interface); (b) OPC reports to the police and event interface (OPC A1arm andEvent Access Interface); (c) historical data access interface (OPC Historical Data AccessInterface).Accordingly, the server of realizing this three class interface respectively just is called DA server, AE server and HDA server.
Opc server is made of Server (server) object, Group (data set) object and Item (data item) object.Server object has comprised the information about server, and as the container of data set object; The data set object is as the container of data item object, and the method for tissue and visit data item is provided; Being connected of data source in each data item representative representative and the server, all are all undertaken by the data set object the visit of item.The attribute relevant with each data item comprises: value, quality and time stamp.Always the hardware with concrete is relevant owing to data item, therefore needs to add attribute and the correlation function relevant with equipment and is provided with and obtains these attributes.
The general step of OPC client's operating data item is: all data item of 1. enumerating the server end definition by the server object interface.2. the data item that will operate adds in the group objects of client definition.3. by group objects data item such as is read and write at operation.
As shown in Figure 5, power quality data concentrator of the present invention (14) is in the core position of system, plays the key effect of the interconnected and communication Protocol Conversion of heterogeneous system.On the one hand, power quality data concentrator (14) is connected the power quality monitoring device (17) of various isomeries with Ethernet interface (16) by RS232/RS485 interface (15), from power quality monitoring device (17), gather quality of power supply service data, the data of gathering are carried out statistics and analysis handle.On the other hand, power quality data concentrator (14) is converted to the private communication protocol data data of following IEC 61850 standards, externally provide IEC 61850 services by Ethernet interface 18 and wide area network (WAN) interface (19) are unified, realize that isomery equipment and digital transformer substation automated system (20) and distant place main website subsystem (21) based on IEC61850 carry out seamless link and information sharing.
The utility model obtains illustration at the open electric energy quality monitoring system of certain enterprise.
Claims (3)
1. a power quality data concentrator that is applied to digital transformer substation is characterized in that, described power quality data concentrator is formed by basic function subsystem (1) with based on the OPC service function subsystem (2) of IEC61850;
Described basic function subsystem is made of the main system control module (3) and the parts such as management of process module (4), protocol conversion module (5), real time data processing module (6), Data Format Transform module (7), history data store module (8), system configuration maintenance module (9) and data forwarding module (10) that adopt on-the-spot complicated communication protocol to carry out data acquisition and the concentrated management function of information.
2. a kind of power quality data concentrator that is applied to digital transformer substation according to claim 1, it is characterized in that described OPC service function subsystem (2) based on IEC61850 comprises private data is converted to the data modeling module (11) of the power quality data that meets the IEC61850 standard, IEC 61850 models are mapped to the model mapping block (12) of unified OPC data format and the OPC access interface module (13) of OPC open application interface is provided.
3. the power quality data concentrator that is applied to digital transformer substation according to claim 1 is characterized in that,
Described data concentrator is integrated based on the heterogeneous power quality monitoring device of IEC 61850 and OPC, adopts the privately owned communication protocol of each manufacturer, obtains the private data that heterogeneous power quality monitoring device is gathered;
Described data concentrator is followed IEC 61850 modeling rules, private data is converted to the power quality data object model that meets the IEC61850 standard;
Described data concentrator is mapped to unified OPC data format with IEC 61850 models, to satisfy requirement integrated between different system, the monitoring equipment according to the mapping rule;
Described data concentrator is followed the OPC standard, and OPC is provided open application interface.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185374A (en) * | 2011-03-03 | 2011-09-14 | 河南电力试验研究院 | Application of IEC61850 in device for monitoring electric energy quality |
| CN102986168A (en) * | 2010-08-12 | 2013-03-20 | Abb研究有限公司 | A communication method and apparatus of network management system |
| CN103884929A (en) * | 2013-12-05 | 2014-06-25 | 国家电网公司 | Sampling rate self-adaptive electric energy quality monitoring device based on IEC61850 |
| CN104168268A (en) * | 2014-07-24 | 2014-11-26 | 广东电网公司电力科学研究院 | Power grid object access control device capable of realizing safety configuration and access of power grid model data |
| CN105119796A (en) * | 2015-08-25 | 2015-12-02 | 国网浙江杭州市富阳区供电公司 | Distributed power station communication method and system |
| WO2016029367A1 (en) * | 2014-08-26 | 2016-03-03 | Accenture Global Services Limited | System, method and apparatuses for data processing in power system |
| CN106100899A (en) * | 2016-07-22 | 2016-11-09 | 深圳供电局有限公司 | A kind of quality of power supply Uniform Communication Platform framework |
| CN107942778A (en) * | 2017-11-09 | 2018-04-20 | 北京许继电气有限公司 | Intellisense cut-in method and system |
| CN113268888A (en) * | 2021-06-23 | 2021-08-17 | 上海交通大学 | Control and information model fusion method in industrial automation system |
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- 2009-10-26 CN CN2009201895992U patent/CN201518429U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102986168A (en) * | 2010-08-12 | 2013-03-20 | Abb研究有限公司 | A communication method and apparatus of network management system |
| CN102185374A (en) * | 2011-03-03 | 2011-09-14 | 河南电力试验研究院 | Application of IEC61850 in device for monitoring electric energy quality |
| CN103884929A (en) * | 2013-12-05 | 2014-06-25 | 国家电网公司 | Sampling rate self-adaptive electric energy quality monitoring device based on IEC61850 |
| CN103884929B (en) * | 2013-12-05 | 2017-06-16 | 国家电网公司 | A kind of sample rate self adaptation equipment for monitoring power quality based on IEC61850 |
| CN104168268A (en) * | 2014-07-24 | 2014-11-26 | 广东电网公司电力科学研究院 | Power grid object access control device capable of realizing safety configuration and access of power grid model data |
| CN104168268B (en) * | 2014-07-24 | 2016-01-20 | 广东电网有限责任公司电力科学研究院 | A kind of power network object access control apparatus that can realize grid model data security configuration and access |
| WO2016029367A1 (en) * | 2014-08-26 | 2016-03-03 | Accenture Global Services Limited | System, method and apparatuses for data processing in power system |
| CN107078541A (en) * | 2014-08-26 | 2017-08-18 | 埃森哲环球服务有限公司 | System, method and apparatus for the data processing in power system |
| CN107078541B (en) * | 2014-08-26 | 2019-11-22 | 埃森哲环球服务有限公司 | System, method and apparatus for the data processing in electric system |
| CN105119796A (en) * | 2015-08-25 | 2015-12-02 | 国网浙江杭州市富阳区供电公司 | Distributed power station communication method and system |
| CN106100899A (en) * | 2016-07-22 | 2016-11-09 | 深圳供电局有限公司 | A kind of quality of power supply Uniform Communication Platform framework |
| CN107942778A (en) * | 2017-11-09 | 2018-04-20 | 北京许继电气有限公司 | Intellisense cut-in method and system |
| CN113268888A (en) * | 2021-06-23 | 2021-08-17 | 上海交通大学 | Control and information model fusion method in industrial automation system |
| CN113268888B (en) * | 2021-06-23 | 2022-09-27 | 上海交通大学 | Control and information model fusion method in industrial automation system |
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