Summary of the invention
Technical matters to be solved by this invention is, provides a kind of visual electrical reticulation design and analytical approach, real-time and accurately detection of grid running status, intuitively represents the important information in operation of power networks, improves the ability monitoring electric network data, ensures the reliability of system.
For solving above technical matters, the embodiment of the present invention provides a kind of visual electrical reticulation design and analytical approach, comprising:
By exclusive data acquisition module integrated power system basic data acquisition process, and standardization storage is carried out to described electrical network basic data;
Set up unified data model, be stored in data warehouse after function i ntegration is carried out to described electrical network basic data; Service data interaction is carried out for multiple data source, for each application system of electrical network provides data, services to support according to standard interface specifications is unified;
Adopt visual query editing machine to carry out data conversion and mapping to the data stored in data warehouse, realize Report Customization and data exhibiting.
Further, described function i ntegration comprises: data integration, application integration, Process integration, interface integrated and service-oriented integrated in one or more combination.
Preferably, described data integration is specially: carry out translation conversion to the data layout of application systems different in electrical network or transmission path, the data of different application systems carried out assembling and distributing, synchronously share the data of each application system in real time fashion.
In the attainable mode of one, described data integration comprises:
Automatically data set stratification and data service layer is created based on metadata; Described metadata comprises the data model that data service modes, service operations and operating strategy form;
By described data service layer provide to can data query source, the integrated access of data source and passive data source can be called;
Many tool environments of described data set stratification are utilized data, services to be converted to the set of Business Entity and corresponding relation.
Preferably, described can data query source be relational database management system; Described data source of calling is Web server or application adapter; Described passive data source is XML file or text.
Further, described method also comprises: adopt multi-dimension analysis metadata tool to carry out data conversion and mapping to the data stored in data warehouse, obtain the grid graph intuitively mapped with electrical network basic data.
Further, according to scalable vector graphics specification, described grid graph is processed, the exhibition method of the graph data of each application system of integrated power system.
Further, described method also comprises:
Layering is carried out to each application system of electrical network;
Set up quantity of electricity and the power transformation capacity of the load growth rate of each system of load prediction analysis of calculation models, simultaneity factor and calculating electrical network, judge the running status that electrical network is current.
The visual electrical reticulation design that the embodiment of the present invention provides and analytical approach, by exclusive data acquisition module integrated power system basic data acquisition process, and the unified storage of standardization is carried out to described electrical network basic data, conversion, statistics and calculating, service data interaction is carried out for multiple data source according to standard interface specifications is unified, by exclusive data service interface for visual electrical network provides supporting, visual query editing machine is adopted to carry out data conversion and mapping to the data stored in data warehouse, through Visual calculation, obtain the visual analyzing result of electric network data and network system operation conditions and produce graphic file, can realize Report Customization and by data be converted into two dimension or three-dimensional graphic object intuitively represents, improve the reliability of ability and the system of guarantee monitoring electric network data.The visualized data of acquisition and graphic file according to the data represented and graphic file detection of grid running status real-time and accurately, and can be applied by slip-stick artist in power grid application system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
In Study on Power Grid Planning process, need to guarantee the power grid quality after planning, accurately obtain the running status of network system in real time.The factors such as the geographic range related to due to network system is wide, device category is many, circumstance complication, by multiple region and manpower or system helps cost is high, poor real, tracking ability, obviously can not meet the development need of electrical network.The embodiment of the present invention is when carrying out planning and design to electrical network, there is provided directly perceived, technological means efficiently, realize slitless connection and the perfect in shape and function of the visual design instrument and planning and design instrument on calculating in grid equipment parameter and foundation of planning data management, planning design analysis.Meanwhile, the embodiment of the present invention also achieves associated external interface, comprises dispatch automated system electric network model and historical data acquisition interface, waterpower scheduling automation Hydrologic Information data acquisition interface, SMS module interface.
The effect of the embodiment of the present invention also comprises: (one), carry out the development of external system interface, carries out uniting and adjustment, ensure the normal operation of interface with external system; (2) the required operation of power networks analytical statement of visual Study on Power Grid Planning technical research, is customized.
See Fig. 1, it is the structural representation of an embodiment of visual electrical reticulation design provided by the invention and analytical approach.
In the present embodiment, described visual electrical reticulation design and analytical approach, mainly comprise the following steps S101 ~ S104:
Step S101: by exclusive data acquisition module integrated power system basic data acquisition process, and standardization storage is carried out to described electrical network basic data.
During concrete enforcement, the present embodiment needs by each layer EMS (the EnergyManage System of data acquisition module access electrical network, energy management system), the related system data such as scheduling information management system (OMS), need to gather user input data according to operation of power networks simultaneously, guaranteed unitarity and the standardization of data by standardized technique.
Particularly, described standardized technique can comprise: by common information model (CIM) and the extended model standard of IEC61970 (design standards of the energy management service that International Electrotechnical Commission formulates), solve the Naming Problems of data object and attribute; By the Unified coding specification based on IEC 61970 model, solve unique name and the identification problem of data object instantiation data; By the common graphics interaction specifications based on SVG (ScalableVector Graphics, scalable vector graphics), solve unified figure and the showing problem of data.Wherein, the IEC61970 series standard that International Power association (IEC) formulates, for unified common information model (CIM) and component interface specification (CIS) have been formulated in the application under control center's environment, object makes to operate in the EMS application of being developed by different manufacturers in control center's environment can carry out intercoursing data, sharing information by establishing criteria; Original system can be made to pass through interconnected according to what meet that standard packaging and new application system realize simultaneously, this reduces the cost of exploitation and the time of input.
During concrete enforcement, visual electrical reticulation design system can be built acquisition and processing is carried out to the basic data of electrical network.
Referring to Fig. 2, it is a kind of structural representation of the visual electrical reticulation design system that the embodiment of the present invention provides.
Particularly, described visual electrical reticulation design system carries out data acquisition with in each application system 201, comprises data acquisition module 202, data memory module 203, model management module 204, parameter management module 205, data service module 206, Report Customization module 207, shows release module 208 and mobile message release module 209.
In the present embodiment, data acquisition module 202 can realize data access by data interchange platform.Data interchange platform is provided with the function of task monitors and task management.Wherein, described task refer in systems in which can independent, according to an operation of certain code autonomous operation, as: transmitting on OMS file to FTP (FileTransfer Protocol, file transfer protocol (FTP)) server or resolving EMS telemetry warehouse-in etc. is all concrete a certain item tasks.The task of data interchange platform, primarily of source, object and stipulations composition, forms the direction of a data stream.Data point to object from source, and stipulations refer to the processing procedure of concrete data.Wherein, the system task that the embodiment of the present invention relates to mainly comprise EMS integral point telemetry warehouse-in task, OMS device parameter warehouse-in task, CIM (Common Information Model, common information model) model warehouse-in task, EMS extreme value profile data warehouse-in task, integral point plant stand carry calculation task, integral point topology (TOPO) carry calculation task, day topology (TOPO) carry calculation task, date topology (TOPO) load statistics task etc.During concrete enforcement, IEC61970CIM and extended model standard solve the Naming Problems of data object and attribute; And the Unified coding specification of IEC 61970 model, solve unique name and the identification problem of data object instantiation data.
During concrete enforcement, the electrical network basic data related in the embodiment of the present invention comprises the data that in the parameter of grid equipment, basic load data and system cloud gray model, various algorithm produces.
In the present embodiment, network system provide real-time, multitask with the running environment of multi-user.Further, for high-resolution clock and the corresponding process of timing wake-up can be monitored, can respond and process the interrupt request of various hardware and software, the method that the present embodiment provides arranges priority automatically, and provides high priority process can the mechanism of interrupts low-priority process.
Step S102: set up unified data model, is stored in data warehouse after carrying out function i ntegration to described electrical network basic data.
During concrete enforcement, need in network system, set up database server, application server, WEB server to support function i ntegration.Wherein, database server, application server, WEB server adopt UNIX operating system; And UNIX or (SuSE) Linux OS had both been supported in all working station, also WINDOWS system can be supported.Further, system provides corresponding mechanism to carry out protected data and file is not damaged, and only has the privilege process of permission can read and write the data area of specifying.
During concrete enforcement, in each server, be equipped with operating system, and, for all kinds of drivers of support hardware should be included in operating system.Preferably, database server, application server and WEB server operating system adopt 64 UNIX operating system; PC workstation can adopt Linux or WINDOWSXP operating system.Such advantage is the efficiency that server can improve data processing; Workstation can compatible more users simultaneously.
In the present embodiment, database is the core of network system, and all application are if WEB, message exchange, data processing etc. are all round database.
After function i ntegration is carried out to electrical network basic data, preferably store data in Oracle (inscriptions on bones or tortoise shells) database, this database has larger expansion capacity and higher degree of opening and good interoperability, can accept the secure access of concurrent user to database data, therefore it can meet the high reliability request of key business.
Particularly, described function i ntegration comprises: data integration, application integration, Process integration, interface integrated and service-oriented integrated in one or more combination.
The embodiment of the present invention by function i ntegration, provides framework and the basis of a system integration, by other system and data integration together, directly just can access various interested data message by a system, carry out miscellaneous service process.On the one hand, user is without the need to remembeing that the username and password of a lot of system reduces system to log on each system and uses difficulty; On the other hand, each system carries out distributed maintenance and management without the need to arranging special keeper to user account number and authority, thus reduces cost and improve convenience.
Wherein, described data integration is specially: carry out translation conversion to the data layout of application systems different in electrical network or transmission path, the data of different application systems carried out assembling and distributing, synchronously share the data of each application system in real time fashion.
The embodiment of the present invention is no longer confined to the data acquisition meeting data transmission channel, and imparts more desired content to data integration, comprising: when data layout or the bore difference of different application, automatically can complete translation conversion by computing machine; Can the gathering of data be completed more easily and distribute; And share the data message of another one system in real time fashion; Data synchronization mechanism is more easily provided simultaneously; Etc..During concrete enforcement, FTP (File Transfer Protocol can be adopted, file transfer protocol (FTP)), DataBase Gateway, message-oriented middleware technology, data warehouse technology, ODBC (Open Database Connectivity, Open Database Connection), the technological means such as JDBC (Java Data Base Connectivity, java DataBase combining) realizes above target.
In the attainable mode of one, described data integration comprises:
A. data set stratification and data service layer is automatically created based on metadata; Described metadata comprises the data model that data service modes, service operations and operating strategy form.During concrete enforcement, data set stratification can adopt the method based on " metadata driven " technology, allows declaratively to define data, services.Data set stratification provides abundant data-mapping and translation function, to realize the data-mapping from multiple heterogeneous data source in a data, services; And simply map with data conversion can define in GUI (Graphical UserInterface, graphic user interface) instrument.Data set stratification additionally provides an abundant function library, wherein contains more than the 200 kind of function for mapping announcements, as: character string, date and mathematical function etc.
Further, data set stratification can create data, services automatically, and making need not the data access workflow of artificial constructed complexity, also need not be multiple data source manual compiling access logic.
B. by described data service layer provide to can data query source, the integrated access of data source and passive data source can be called; Preferably, described can data query source be relational database management system; Described data source of calling is Web server or application adapter; Described passive data source is XML file or text.
In the present embodiment, data set stratification can create data service layer automatically.For the service of reading data, data set stratification allows automatically to create efficient data access task (comprising SQL and service call).For the service of write data, data set stratification allows automatically to create Data Update task (comprising concurrent and transaction management logic).The method of this metadata driven can detect the pattern change in bottom data source easily, makes slip-stick artist initiatively can revise service to reflect data change.
C. many tool environments of described data set stratification are utilized data, services to be converted to the set of Business Entity and corresponding relation.Utilize many tool environments of data set stratification, business data service can be expressed as the set of a Business Entity and corresponding relation by model of creation by user.The final data model be made up of data service modes, service operations and operating strategy is used as metadata and is stored in a metadatabase.Metadatabase, for data service architecture teacher, application developer and Admin Access, provides one and concentrates coherent mode, carry out publish data service.
In addition, application integration is referred in the present embodiment and discrete service application to be connected by the function of cross-system, realizes the tightness of business monitoring, prevents business chain from occurring disconnecting.Particularly, the funcall that the technology types such as opening API (Application Programming Interface, application programming interface), adapter realize cross-system can be passed through.
It is integrated that Process integration refers to that " the electronic flow process " between the multiple application of monitoring cooperates.Along with integration demand is goed deep into, many business runnings relate to multiple application system.Can be supported and facilitate reproducing with integrated of operation flow by workflow tool.
The control strategy of different look & feel, operation style and the application safety of different application carries out unifying to show by integrated can the realization in interface, user is when the application to multiple different-style, no longer need repeatedly to input password and enter different system, greatly improve the convenience that system uses.
Can be realized service-oriented integrated by standardized service component protocols/specifications such as WEB SERVICE (network service), user can when in office or place obtain needed for arbitrary IT service, and need not be concerned about that the technology of service realizes form.
Step S103: carry out service data interaction for multiple data source, for each application system of electrical network provides data, services to support according to standard interface specifications is unified.In the present embodiment, preferably set up the complete data-interface specification based on IEC61970/61968, the data center of Criterion, realize sharing and exchanging of electric power enterprise each system real-time information inner, for managerial decision provides more effective information service, thus increase work efficiency
Step S104: adopt visual query editing machine to carry out data conversion and mapping to the data stored in data warehouse, realize Report Customization and data exhibiting.
Further, the visual electrical reticulation design that the present embodiment provides and analytical approach also comprise: adopt multi-dimension analysis (Multidimensional Scaling, MDS) metadata tool carries out data conversion and mapping to the data stored in data warehouse, obtains the grid graph intuitively mapped with electrical network basic data.
MDS metadata tool can be analyzed electric network data by space diagram (Spatial Map) intuitively.
Preferably, according to scalable vector graphics (Scalable Vector Graphics is called for short SVG) specification, described grid graph is processed, the exhibition method of the graph data of each application system of integrated power system.
Further, in the present embodiment, described visual electrical reticulation design and analytical approach, also comprise:
Layering is carried out to each application system of electrical network; Set up quantity of electricity and the power transformation capacity of the load growth rate of each system of load prediction analysis of calculation models, simultaneity factor and calculating electrical network, judge the running status that electrical network is current.
Referring to Fig. 3, it is the visual electrical reticulation design hierarchical model schematic diagram that the embodiment of the present invention provides.
Electrical network service design is the core of system, electrical reticulation design process can be summarized as a mathematical model, as shown in Figure 3, specific implementation process can be divided into S301: present situation, S302: load prediction, S303: layout, S304: connection plan, S305: gather, altogether double teacher.Each stage calculates different electrical network parameters respectively.Such as, load prediction stage S302 mainly calculates the prediction load of electrical network at different levels; The stage S303 of layouting mainly calculates power transformation capacitance balance at different levels.
Wherein, load prediction is the originating end of electrical reticulation design, and bottom (as district level) load prediction is the initial originating end of load prediction work.And load prediction is mainly concerned with divided power system, peak load always adds four factors such as pattern, simultaneity factor, load growth rate.
Be proven, rational divided power system should be five layers: province, branch, city, burst, district.
Peak load always adds the peak load that pattern is mainly used in calculating each layer electrical network.The summations such as the peak load of each layer electrical network can be equivalent to the 220KV load sum of this layer of electrical network, 110KV power supply is exerted oneself, 110KV section load.Particularly, company of county peak load=this county 110KV (comprising special change) sum+220KV direct-furnish (10 kilovolts of outlets); Burst peak load=this film 220KV (comprising special change) sum+110KV power supply exerts oneself (unified)+with the 110KV section load (it is negative for exporting, and is just input as) of outer plate; Company of city peak load=this city 220KV (comprising special change) sum+110KV power supply exerts oneself+with the 110KV section load (it is negative for exporting, and is just input as) in outer city; Branch's peak load=500KV power transformation+220KV power plant+110KV power plant+220KV interconnection; The whole province's peak load=province adjusts interconnection between power supply+province.
When calculating simultaneity factor, also can calculate by the simultaneity factor of layering to each layer.Particularly:
1) chip level simultaneity factor=(burst peak load-220 specially becomes)/company of county peak load sum is divided;
2) city-level simultaneity factor=(company of city peak load-220 specially becomes)/company of county peak load sum;
3) ministerial level simultaneity factor=branch's peak load/company of city peak load sum is divided;
4) provincial simultaneity factor=the whole province's peak load/company of city peak load sum.
Load growth rate is divided from character angle and can be divided into public network rate of growth and specially become rate of growth.Special varying capacity is not counted in power transformation capacitance balance, so its load must be rejected in the calculation.Combine the rate of growth of public network load growth and the growth of special varying load, the present embodiment is referred to as composition growth rate.Rate of growth divides class to be beneficial to unified standard, reduces meaningless arguement; It is convenient to revise, and can adjust rapidly load prediction, the various changes of reply every aspect.
The load prediction of each level is calculated as follows:
A. district level planning unit
Load prediction: planning level annual peak load=(present situation peak load-specially varying load) × public network rate of growth+110 specially varying load;
Composition growth rate: planning level annual peak load/present situation peak load-1.
B. burst
Load prediction: planning level annual peak load=company programming of county forcasted years peak load sum × point chip level simultaneity factor (not comprising special change)+220 specially becomes;
Composition growth rate: planning level annual peak load/present situation peak load-1.
C. company of city
Load prediction: planning level annual peak load=company programming of county forcasted years peak load sum × city-level simultaneity factor (not comprising special change)+220 specially becomes;
Composition growth rate: planning level annual peak load/present situation peak load-1.
D. branch
Load prediction: planning level annual peak load=company programming of city forcasted years peak load it × point ministerial level simultaneity factor;
Composition growth rate: planning level annual peak load/present situation peak load-1.
E. the whole province
Load prediction: planning level annual peak load=company programming of city forcasted years peak load sum × provincial simultaneity factor;
Composition growth rate: planning level annual peak load/present situation peak load-1 (rate of growth in this year).
During concrete enforcement, the embodiment of the present invention also calculates the balance of electric power and ener of designed electrical network further: electric power profit and loss=maximum supply power load-power supply is exerted oneself.
Power transformation capacitance balance calculates the data of three electric pressures: 500KV, 220KV and 110KV.Wherein 500KV associates with a point ministerial level with provincial, and 220KV associates with a point chip level with city-level, and 110KV associates with district level.
See Fig. 4, be the 500KV power transformation capacitance balance computation model figure that the embodiment of the present invention provides.
Particularly, by the data processing of modules 401 ~ 409,500KV power transformation capacitance balance computing formula is: required 500KV power transformation load=following power supply of maximum supply power load-220KV is exerted oneself; Capacity-load ratio=500KV power transformation capacity/need 500KV power transformation load.
The calculating of power transformation capacitance balance of 220KV and 110KV and the illustraton of model of 500KV and account form close.
The network system that embodiment of the present invention design analysis completes can be used for user by B/S pattern (Browser/Server, Browser/Server Mode) provide the page to check, download, revise, submit to, the function such as examination & verification, simultaneously for above all data, all retain general database service interface to each layer electrical network.
The visual electrical reticulation design that the embodiment of the present invention provides and analytical approach, by exclusive data acquisition module integrated power system basic data acquisition process, and the unified storage of standardization is carried out to described electrical network basic data, conversion, statistics and calculating, service data interaction is carried out for multiple data source according to standard interface specifications is unified, by exclusive data service interface for visual electrical network provides supporting, visual query editing machine is adopted to carry out data conversion and mapping to the data stored in data warehouse, through Visual calculation, obtain the visual analyzing result of electric network data and network system operation conditions and produce graphic file, can realize Report Customization and by data be converted into two dimension or three-dimensional graphic object intuitively represents, improve the reliability of ability and the system of guarantee monitoring electric network data.The visualized data of acquisition and graphic file according to the data represented and graphic file detection of grid running status real-time and accurately, and can be applied by slip-stick artist in power grid application system.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.