CN101895154B - Main and distribution network model splicing method and system in distribution network automation system - Google Patents
Main and distribution network model splicing method and system in distribution network automation system Download PDFInfo
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Abstract
The invention provides a main and distribution network model splicing method and system in a distribution network automatic system. The method comprises the following steps: comparing an updated main network model in a main network scheduling automatic system with a prestored main network model in a main network model and distribution network automatic system, calculating the update information of the main network model; judging whether the update information contains a periphery device connected with a distribution network model, if so, updating the information of the corresponding periphery device in the distribution network model; and updating the information of the main network model stored in the distribution network automatic system. By using the main and distribution network model splicing method and system in the distribution network automatic system provided by the invention, the main network model and the distribution network model can be spliced in the distribution network automatic system, thus obtaining the complete model data of the entire network, reducing the workload of splicing the main and distribution network models and providing reliable basis for the operation decision of the distribution network automatic system.
Description
Technical field
The present invention relates to the power system analysis technical field, relate in particular to the main distribution model splicing method in a kind of distribution automation system, the invention still further relates to the main distribution model splicing system in a kind of distribution automation system.
Background technology
Along with power system development, electric power networks is carried out the important means that modeling becomes the managing power networking, usually in the dispatch automated system of major network end, set up on the power distribution network to the network model between the power plant, i.e. the major network model; In the distribution automation system of distribution end, set up the model of the network of distribution line composition, i.e. the distribution model.For example; When distribution automation system is set up said distribution model; The data of external model (distant, two distant, three distant equipment that contain feeder line) of will standing deposit said distribution automation system SCADA server in, set up model through the drawing tool and the database maintenance tool of system.
Improving the power network safety operation level, guarantee the safe and reliable operation of national grid, is the pressing issues that China's electric power system faces at present.Resolve this problem; Just must analyze more reliably electric power system, for operational decisions provides more believable data theoretical foundation, and be exactly how to realize the model splicing of main distribution in the problem that the distribution end need solve; For interconnected electric power system; Distribution automation system must be timely, comprehensive, accurate and complete to the understanding of whole electric power system, analyzes on complete the whole network model data basis obtaining, and just might provide reliable believable analysis result.
The IEC61970CIM series standard that International Electrotechnical Commission formulates; Electric power system common information model and application programming interfaces thereof have been carried out standard; It is the framework property basis of whole electric power system control; For exchange model information between the electric power system different control areas provide maybe, the present invention also is based on and realizes under the prerequisite that meets this international standard.
Summary of the invention
The technical problem that the present invention will solve provides main distribution model splicing method and the system thereof in the higher distribution automation system of a kind of efficient; Can in distribution automation system, realize the splicing of major network model and distribution model, make and to obtain complete the whole network model data in the distribution automation system.
For addressing the above problem; Main distribution model splicing method in the distribution automation system provided by the invention; May further comprise the steps: the major network model comparison that stores in advance in the major network model that said major network dispatch automated system is upgraded and the distribution automation system, calculate the lastest imformation of said major network model; Wherein, the power equipment of 10kV is an edge device on the contact branch road of said major network model and said distribution model, and said major network model and said distribution model have common border, and said major network model is a terminal point with the 10kV edge device on the said contact branch road; Said distribution model is a starting point with the 10kV edge device on the said contact branch road; Judge whether comprise the edge device that is connected with said distribution model in the said lastest imformation, wherein, whether relate to the renewal of 10kV equipment, judge whether said lastest imformation relates to the edge device of said major network model according to said lastest imformation; And, judge whether the edge device of the major network model that upgrades is connected with said distribution model according to the information of 10kV edge device corresponding on the contact branch road between said master, the distribution model; If then upgrade the information of edge device corresponding in the said distribution model, otherwise do not upgrade the information of said distribution model; Upgrade the major network model information that stores in the said distribution automation system.
For addressing the above problem, the main distribution model splicing system in the distribution automation system provided by the invention comprises: computing module, distribution model modification module and major network model modification module.Said computing module is used for major network model that said major network dispatch automated system is upgraded and the major network model comparison that distribution automation system stores in advance, calculates the lastest imformation of said major network model; Wherein, the power equipment of 10kV is an edge device on the contact branch road of said major network model and said distribution model, and said major network model and said distribution model have common border, and said major network model is a terminal point with the 10kV edge device on the said contact branch road; Said distribution model is a starting point with the 10kV edge device on the said contact branch road; Said distribution model modification module is used for judging whether said lastest imformation comprises the edge device that is connected with said distribution model; Wherein, Whether relate to the renewal of 10kV equipment according to said lastest imformation, judge whether said lastest imformation relates to the edge device of said major network model; And, judge whether the edge device of the major network model that upgrades is connected with said distribution model according to the information of 10kV edge device corresponding on the contact branch road between said master, the distribution model; If then upgrade the information of edge device corresponding in the said distribution model, otherwise do not upgrade the information of said distribution model; Said major network model modification module is used for upgrading the major network model information that said distribution automation system stores.
Compared with prior art; Because main distribution model splicing method and system thereof in the distribution automation system of the present invention have made full use of the major network model resource of upgrading in the electric power scheduling automatization system of major network end; Calculate the lastest imformation of said major network model; Therefore need not to upgrade and set up said major network model in the said distribution automation system; And only need to upgrade the major network model that stores in the said distribution automation system according to said lastest imformation, saved the workload of in distribution automation system, upgrading the major network model.
When in the lastest imformation of judging said major network model, relating to the edge device that is connected with said distribution model simultaneously; Correspondence is upgraded the edge device of said distribution model, otherwise does not upgrade the information of said distribution model, has guaranteed the uniform data between main distribution network systems; In distribution automation system, set up complete electric power system the whole network model; Realized the integrated modeling of main distribution, convenient global analysis to electric power system is for the operational decisions of distribution automation system provides reliable foundation.
Description of drawings
Fig. 1 is the schematic flow sheet of the main distribution model splicing method in the distribution automation system of the present invention;
Fig. 2 is the sketch map of major network model;
Fig. 3 is the sketch map of distribution model;
Fig. 4 is the structural representation of the main distribution model splicing system in the distribution automation system of the present invention;
Fig. 5 is the structural representation of a kind of preferred implementation of main distribution model splicing system in the distribution automation system of the present invention.
Wherein, the main distribution model splicing system in 10 distribution automation systems;
11 computing modules;
12 distribution model modification modules;
13 major network model modification modules;
14 first communication modules;
15 second communication modules.
Embodiment
See also Fig. 1, Fig. 1 is the schematic flow sheet of the main distribution model splicing method in the distribution automation system of the present invention.
Main distribution model splicing method in the said distribution automation system may further comprise the steps:
S101 obtains the major network model that the major network dispatch automated system is upgraded;
The major network dispatch automated system need be managed major network, therefore sets up usually on the power distribution network to the network model between the power plant, i.e. and major network model, and said major network model carried out maintenance update.
When definite said major network model and distribution model; At first confirm the border of said major network model and said distribution model, general electric power system being defined as main distribution model boundary: the power equipment with 10kV on the contact branch road of major network model and distribution model is an edge device.Said major network model and said distribution model have common border, and promptly said major network model is a terminal point with the 10kV edge device on the said contact branch road; Said distribution model is a starting point with the 10kV edge device on the said contact branch road, and said distribution automation system serves as that modeling is carried out to the distribution model in the basis with said edge device.
Going out wiretap 1012,1013 with 10kV in the major network model for example shown in Figure 2 is end boundaries equipment; In distribution model shown in Figure 3, then go out wiretap 1013 as the starting point edge device with 10kV, therefore said major network model and said distribution model go out to realize splicing on the wiretap 1013 at said 10kV.
In this step; Make full use of existing major network model resource in the said major network dispatch automated system; After said major network dispatch automated system is upgraded said major network model; Said major network model is derived with the form that meets the IEC61970CIM standard, be sent to said distribution automation system through network then.
Can set said major network automated system said major network model is carried out timed sending, perhaps after upgrading, derive automatically and send; Also can send preset instructions, make said major network dispatch automated system when receiving said preset instructions, from system, derive said major network model and be sent to said distribution automation system through network at said distribution automation system.
Said distribution automation system receives the major network model that said major network dispatch automated system is sent through network, and with said major network model to meet the form import system of IEC61970CIM standard.
S102 with the major network model that stores in advance in the major network model of said renewal and the distribution automation system relatively, calculates the lastest imformation of said major network model;
For carrying out analysis decision according to the whole network model at the distribution end; Therefore; In said distribution automation system, store complete the whole network model information of electric power system in advance; Said the whole network model information comprises the contact branch road between said major network model, said distribution model and master, the distribution model, the nodal information of edge device etc.
In the major network model that in this step, said major network dispatch automated system is sent and the said distribution automation system in advance the major network model of storage compare, can confirm the lastest imformation of said major network model.Said lastest imformation comprises the equipment that increases in the said major network model, the equipment of minimizing, and the change of the node number of equipment or the like.
If in this step; Learn that through relatively calculating any variation does not take place said major network model; Step after then need not to carry out directly finishes this main distribution model splicing flow process, begins to carry out again the main distribution model splicing flow process the distribution automation system from step S101.
S103 judges whether comprise the edge device that is connected with said distribution model in the said lastest imformation, if, execution in step S104 then; If deny, then execution in step S105.
Can whether relate to the renewal of 10kV equipment earlier according to said lastest imformation, judge whether said lastest imformation relates to the edge device of said major network model, if do not relate to the edge device of said major network model, direct execution in step S105.
If said lastest imformation relates to the edge device of said major network model; Then need judge whether the edge device of the major network model that upgrades is connected with said distribution model further according to the information of 10kV edge device corresponding on the contact branch road between said master, the distribution model.If, execution in step S104 then, if not, direct execution in step S105 then.
S104 upgrades in the said distribution model information of corresponding edge device and execution in step S105;
When the edge device that in judging said major network model, upgrades is connected with said distribution model, the corresponding information of upgrading the edge device in the said distribution model.
For example, when the node number of the edge device in the said major network model changes, the then corresponding node number of revising edge device corresponding in the said distribution model.With Fig. 2 and major network model and distribution model shown in Figure 3 is example; If the node number that goes out wiretap 1012 in the said major network model changes 1014 into; And the node number that goes out wiretap 1013 is constant; Then because saidly go out wiretap 1012 and be not connected, do not belong to said master, the edge device on the branch road is got in touch with in distribution, so need not change said distribution model with said distribution model; And if the said node number that goes out wiretap 1013 changes 1015 into, then should change 1015 into by corresponding node number with the 10kV outlet switching boundary equipment in the said distribution model, make the annexation of main distribution keep correct.
Also having a kind of situation is when said major network model modification; The internal unit of said distribution model self changes simultaneously; Then not only need revise the information of the edge device of said distribution model this moment; And more will revise the information of internal unit, even need be to the modeling again of said distribution model.If to the modeling again of said distribution model, then can after the edge device that upgrades said distribution model, search for the edge device of said distribution model again, then with the starting point of said edge device, to the modeling again of said distribution model as model.
After accomplishing above step, execution in step S105.
S105 upgrades the major network model information that stores in the said distribution automation system.
According to the lastest imformation of in step S102, calculating the said major network model that obtains, the major network model that stores in the said distribution automation system is upgraded.
For example in said major network model, add new device model according to the increase facility information that comprises in the said lastest imformation; According to the information of the minimizing equipment that comprises in the said lastest imformation, delete existing some device model in the said major network model; And, revise node number of corresponding equipment model in the said major network model or the like according to the information that the device model node number that comprises in the said lastest imformation changes.Owing to only need upgrade the equipment component model of said major network model, and need whole said major network model not upgraded according to said lastest imformation, therefore reduce the workload of said major network model modification, improved the operating efficiency of main distribution model splicing.
Compared with prior art; Main distribution model splicing method in the distribution automation system of the present invention has been utilized the existing major network model resource in the major network dispatching patcher; Through main distribution model splicing technology, in said distribution automation system, make up complete electric network model, realized the problem of the integrated modeling of main distribution; Thereby alleviated the workload of distribution modeling greatly, also guaranteed the uniform data between the main distribution network systems.And, in said distribution automation system, can carry out analysis decision according to the whole network model, improve the reasonability and the efficient of distribution automation system dispatching management.
In addition; When main distribution model splicing, judge whether to relate to the renewal of distribution model according to the lastest imformation of major network model; Only when said lastest imformation relates to the distribution model; Just said distribution model is upgraded,, then directly upgrade the major network model information that stores in the said distribution automation system if do not relate to said distribution model.Thereby need not the whole network model in the said distribution automation system is upgraded, reduce the workload of model splicing, improve the operating efficiency of model splicing.
See also Fig. 4, Fig. 4 is the structural representation of the main distribution model splicing system in the distribution automation system of the present invention.
Main distribution model splicing system 10 in the said distribution automation system comprises: computing module 11, distribution model modification module 12 and major network model modification module 13.Said computing module 11 is used for major network model that said major network dispatch automated system is upgraded and the major network model comparison that distribution automation system stores in advance, calculates the lastest imformation of said major network model; Said distribution model modification module 12 is used for according to said major network model and distribution model connection relation information; Judge and whether comprise the edge device that is connected with said distribution model in the said lastest imformation; If then upgrade in the said distribution model information of corresponding edge device; Said major network model modification module 13 is used for upgrading the major network model information that said distribution automation system stores.
See also Fig. 5, Fig. 5 is the structural representation of a kind of preferred implementation of main distribution model splicing system in the distribution automation system of the present invention.
Main distribution model splicing system 10 in the said distribution automation system further comprises first communication module 14 and second communication module 15; The said major network model that said first communication module 14 is used for said major network dispatch automated system is upgraded is derived with the form that meets the IEC61970CIM standard, is sent to said second communication module 15 through network then; Said second communication module 15 is used for receiving the major network model that said first communication module 14 sends from network, and said major network model is imported distribution automation system with the form that meets the IEC61970CIM standard.
During concrete the realization, 14 pairs of said major network models of said first communication module can be set carry out timed sending, perhaps after upgrading, derive automatically and send; Also can send preset instructions through 15 pairs of said first communication modules 14 of said second communication module; Said second communication module 15 is derived said major network model and is sent to said second communication module 15 through network when receiving said preset instructions from system.
The major network dispatch automated system need be managed major network, therefore sets up usually on the power distribution network to the network model between the power plant, i.e. and major network model, and said major network model carried out maintenance update.Can make full use of existing major network model resource in the said major network dispatch automated system through said first communication module 14 is set with said second communication module 15, make the distribution end need not the information that Data acquisition, can obtain the major network model.
When definite said major network model and distribution model; At first confirm the border of said major network model and said distribution model, general electric power system being defined as main distribution model boundary: the power equipment with 10kV on the contact branch road of major network model and distribution model is common edge device.
Simultaneously; For carrying out analysis decision according to the whole network model at the distribution end; Therefore; In said distribution automation system, store complete the whole network model information of electric power system in advance, said the whole network model information comprises the contact branch road between said major network model, said distribution model and master, the distribution model, the nodal information of edge device etc.
In the major network model that said computing module 11 sends said major network dispatch automated system and the said distribution automation system in advance the major network model of storage compare, thereby calculate the lastest imformation of said major network model.Said lastest imformation comprises the equipment that increases in the said major network model, the equipment of minimizing, and the change of the node number of equipment or the like.
Said computing module 11 is sent to said distribution model modification module 12 and said major network model modification module 13 through relatively calculating the lastest imformation of the said major network model that obtains.If said computing module 11 is through after relatively calculating; Do not obtain the lastest imformation of said major network model; Be that said major network model does not have any lastest imformation, then need not lastest imformation said distribution model modification module 12 or the said major network model of said major network model modification module 13 transmissions.
Said distribution model modification module 12 is used for judging whether said lastest imformation comprises the edge device that is connected with said distribution model, if then upgrade in the said distribution model information of corresponding edge device; If, then can not make update processing to said distribution model according to said lastest imformation.
Whether said distribution model modification module 12 can relate to the renewal of 10kV equipment earlier according to said lastest imformation; Judge whether said lastest imformation relates to the edge device of said major network model; If do not relate to the edge device of said major network model, then can not make update processing to said distribution model according to said lastest imformation.
If said lastest imformation relates to the edge device of said major network model; Then said distribution model modification module 12 need judge whether the edge device of the major network model that upgrades is connected with said distribution model further according to the information of 10kV edge device corresponding on the contact branch road between said master, the distribution model.If then upgrade in the said distribution model information of corresponding edge device; If, then can not make update processing to said distribution model according to said lastest imformation.
The operation that said distribution model modification module 12 is upgraded the information of edge device corresponding in the said distribution model comprises: when the node number of the edge device in the said major network model changes, and the then corresponding node number of revising edge device corresponding in the said distribution model.
Said distribution model modification module 12 also is used for the internal unit of said distribution model self is upgraded.When said major network model modification; The internal unit of said distribution model self also changes simultaneously; Then this moment, said distribution model modification module 12 not only need be revised the information of the edge device of said distribution model; And more will revise the information of internal unit, even need be to the modeling again of said distribution model.12 pairs of said distribution models of said distribution model modification module are again during modeling; After the edge device that upgrades said distribution model; Again search for the edge device of said distribution model, then with the starting point of said edge device, to the modeling again of said distribution model as model.
Said major network model modification module 13 is upgraded the major network model that stores in the said distribution automation system according to the lastest imformation of the said major network model of said computing module 11 calculating acquisitions.
For example in said major network model, add new device model according to the increase facility information that comprises in the said lastest imformation; According to the information of the minimizing equipment that comprises in the said lastest imformation, delete existing some device model in the said major network model; And, revise node number of corresponding equipment model in the said major network model or the like according to the information that the device model node number that comprises in the said lastest imformation changes.Because 13 equipment component models that need upgrade said major network model of said major network model modification module according to said lastest imformation; And need whole said major network model not upgraded; Therefore reduce the workload of said major network model modification, improved the operating efficiency of main distribution model splicing.
Compared with prior art, the main distribution model splicing system in the distribution automation system of the present invention has realized the problem of the integrated modeling of main distribution, has alleviated the workload of distribution modeling greatly, has also guaranteed the uniform data between the main distribution network systems.And, help being implemented in the said distribution automation system and carry out analysis decision according to the whole network model, improve the reasonability and the efficient of distribution automation system dispatching management.
In addition,, therefore reduce the workload of model splicing, improved the operating efficiency of main distribution model splicing because the main distribution model splicing system in the distribution automation system of the present invention need not the whole network model in the said distribution automation system is upgraded.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection range of the present invention.
Claims (8)
1. the main distribution model splicing method in the distribution automation system is characterized in that may further comprise the steps:
The lastest imformation of said major network model is calculated in the major network model comparison that stores in advance in the major network model that the major network dispatch automated system is upgraded and the distribution automation system; Wherein, the power equipment of 10kV is an edge device on the contact branch road of said major network model and distribution model, and said major network model and said distribution model have common border, and said major network model is a terminal point with the 10kV edge device on the said contact branch road; Said distribution model is a starting point with the 10kV edge device on the said contact branch road;
Judge whether comprise the edge device that is connected with the distribution model in the said lastest imformation, wherein, whether relate to the renewal of 10kV edge device, judge whether said lastest imformation relates to the edge device of said major network model according to said lastest imformation; And, judge whether the edge device of the major network model that upgrades is connected with said distribution model according to the information of 10kV edge device corresponding on the contact branch road between said master, the distribution model;
If then upgrade the information of edge device corresponding in the said distribution model, otherwise do not upgrade the information of said distribution model according to said lastest imformation;
Upgrade the major network model information that stores in the said distribution automation system according to said lastest imformation.
2. the main distribution model splicing method in the distribution automation system as claimed in claim 1 is characterized in that the step of upgrading the information of the edge device in the said distribution model comprises:
According to the node number information of the edge device of the major network model that comprises in the said lastest imformation, revise the node number of edge device corresponding in the said distribution model.
3. like the main distribution model splicing method in claim 1 or the 2 described distribution automation systems, it is characterized in that, further may further comprise the steps:
Major network model after the said major network dispatch automated system renewal is derived with the form of IEC61970CIM standard, and said major network model is sent to said distribution automation system through network.
4. like the main distribution model splicing method in claim 1 or the 2 described distribution automation systems; It is characterized in that: after the information of the edge device in upgrading said distribution model; Further judge the lastest imformation that whether has said distribution model internal unit in the said distribution automation system; Be then according to the lastest imformation of said internal unit and the lastest imformation of said edge device, to the modeling again of said distribution model.
5. the main distribution model splicing system in the distribution automation system is characterized in that comprising:
Computing module is used for major network model that the major network dispatch automated system is upgraded and the major network model comparison that distribution automation system stores in advance, calculates the lastest imformation of said major network model; Wherein, the power equipment of 10kV is an edge device on the contact branch road of said major network model and distribution model, and said major network model and said distribution model have common border, and said major network model is a terminal point with the 10kV edge device on the said contact branch road; Said distribution model is a starting point with the 10kV edge device on the said contact branch road;
Distribution model modification module; Be used for judging whether said lastest imformation comprises the edge device that is connected with said distribution model; Wherein, whether relate to the renewal of 10kV edge device, judge whether said lastest imformation relates to the edge device of said major network model according to said lastest imformation; And, judge whether the edge device of the major network model that upgrades is connected with said distribution model according to the information of 10kV edge device corresponding on the contact branch road between said master, the distribution model;
If then upgrade the information of edge device corresponding in the said distribution model, otherwise do not upgrade the information of said distribution model according to said lastest imformation;
Major network model modification module is used for upgrading the major network model information that said distribution automation system stores according to said lastest imformation.
6. the main distribution model splicing system in the distribution automation system as claimed in claim 5; It is characterized in that: said distribution model modification module is obtained the node number information of the edge device on the contact branch road of said major network model and said distribution model; And, revise the node number of edge device corresponding in the said distribution model according to the node number lastest imformation of the edge device on said contact branch road.
7. like the main distribution model splicing system in claim 5 or the 6 described distribution automation systems; It is characterized in that: the main distribution model splicing system in the said distribution automation system further comprises communication module; Major network model after said communication module is upgraded said major network dispatch automated system is derived with the form of IEC61970CIM standard, and said major network model is sent to said distribution automation system through network.
8. like the main distribution model splicing system in claim 5 or the 6 described distribution automation systems; It is characterized in that: after the information of the edge device of said distribution model modification module in upgrading said distribution model; Further judge the lastest imformation that whether has said distribution model internal unit in the said distribution automation system; Be then according to the lastest imformation of said internal unit and the lastest imformation of said edge device, to the modeling again of said distribution model.
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