CN103532144A - Power grid model splicing method for relay protection multistage setting calculation and system thereof - Google Patents
Power grid model splicing method for relay protection multistage setting calculation and system thereof Download PDFInfo
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- CN103532144A CN103532144A CN201310523932.XA CN201310523932A CN103532144A CN 103532144 A CN103532144 A CN 103532144A CN 201310523932 A CN201310523932 A CN 201310523932A CN 103532144 A CN103532144 A CN 103532144A
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Abstract
The invention provides a power grid model splicing method for relay protection multistage setting calculation and a system thereof, and according to the method, the power grid model splicing for whole network with the high-voltage side outlet wire of a main transformer is used as a boundary model. The invention further provides a power grid model splicing system for the relay protection multistage setting calculation. The high-voltage side outlet wire of the main transformer is used as the splicing boundary place, so that the demand to the model consistency is reduced, the splicing error due to different modeling of buses in superior and subordinate power grids is avoided, the model splitting and splicing operation quantity is largely decreased, and the smooth splicing is guaranteed.
Description
Technical field
The present invention relates to technical field of power systems, specifically a kind of for the multistage grid model splicing method and system of adjusting and calculating of relaying protection.
Background technology
Grid model splicing, by serial of methods such as unified equipment Naming conventions, border electrical network analysis, model fractionation, model splicings, is effectively synthesized each model, forms complete the whole network model.Grid model splicing provides strong data supporting for the integrated evaluation work of adjusting under large service conditions, significant to considering the correct operation of relaying protection in network-wide basis.
Yet, actual electric network has wide area and distributes, parameter magnanimity, the feature of model complexity, the production management of electric power for many years self-assembling formation a whole set of " differentiated control, hierarchical control, distribution process " system (as: state adjusts, network regulation, economize and adjust, ground is adjusted, county adjusts, city auxiliary tone), control centres at different levels have and are safeguarding detailed model parameter and the operational factor of jurisdiction electrical network, to electric network model separately, be all independent construction, the electrical network of region within the jurisdiction has been set up to comparatively detailed electric power system model, the model of adjacent electrical network has been carried out simplifying and equivalence to a great extent.Therefore, if take bus as boundary model carries out the whole network model splicing, can there is the problems such as in the superior and the subordinate's electrical network, model is inconsistent, equipment name is inconsistent, equipment repeats, need to carry out the fractionation of model, strengthen complexity and the operand of splicing.So, need to seek a kind of new model splicing scheme the superior and the subordinate's electric network model is spliced.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of for the multistage grid model splicing method and system of adjusting and calculating of relaying protection; avoid due to the inconsistent splicing mistake causing of bus modeling in the superior and the subordinate's electrical network, reduce the operand that model splits, splices.
Technical scheme of the present invention is:
The grid model splicing method that relaying protection is multistage adjusts and calculate, the method be take the outlet of main transformer high-pressure side and is carried out the grid model splicing of the whole network as boundary model.
The grid model splicing method that relaying protection is multistage adjusts and calculate, specifically comprises the step of following order:
(1) the main transformer high-pressure side information of Real-time Collection electric network models at different levels, using outlet, main transformer high-pressure side as the boundary of splicing, gathers each boundary with the set of composition splice point and is stored to memory;
(2) to each boundary in described splice point set, to carry out take main transformer be the splicing of boundary model and label, more new memory;
(3) judge that whether each boundary in described splice point set is all identified, if so, the grid model splicing of the whole network completes, and if not, returns to step (2).
The described grid model splicing method for the multistage calculating of adjusting of relaying protection; in step (2); each boundary in described splice point set is carried out take the splicing of main transformer as boundary model; be specially: one end of the main transformer high-pressure side outlet of higher level's electric network model is set to free end; the high-pressure side outlet that the other end connects bus ，Jiang at the corresponding levels subordinate electric network model is connected with described free end.
The multistage grid model splicing system of adjusting and calculating of relaying protection, comprises information acquisition module, splicing identification module and splice point set identification judge module;
Described information acquisition module, for the main transformer high-pressure side information of Real-time Collection electric network models at different levels, using outlet, main transformer high-pressure side as the boundary of splicing, gathers each boundary with the set of composition splice point and is stored to memory;
Described splicing identification module, for each boundary of described splice point set to be carried out to take main transformer be the splicing of boundary model and label, new memory more;
Described splice point set identification judge module, whether all identified for judging each boundary of described splice point set.
The present invention has cancelled traditional scheme of detailed model that only Equivalent Model replaced with, but using the outlet, high-pressure side of main transformer as the boundary of splicing, reduced the conforming requirement of model, avoided due to the inconsistent splicing mistake causing of bus modeling in the superior and the subordinate's electrical network, the annexation of bus and high-pressure side outlet complexity is not done change and is retained in splicing, greatly reduce the operand that model splits, splices, guarantee carrying out smoothly of splicing, thereby greatly improved electrical network splicing accuracy and runtime.
Accompanying drawing explanation
Fig. 1 is method schematic diagram of the present invention;
Fig. 2 is high-level schematic functional block diagram of the present invention.
Embodiment
As shown in Figure 1, 2, a kind of for the multistage grid model splicing method of adjusting and calculating of relaying protection, the method be take the outlet of main transformer high-pressure side as boundary model carries out the grid model splicing of the whole network, specifically comprises the step of following order:
S1, information acquisition module 1 are by the main transformer high-pressure side information of system flexible bus Real-time Obtaining electric network models at different levels, and to its buffer memory of classifying, using outlet, main transformer high-pressure side as the boundary of splicing, all boundarys form splice point set, and splice point set is stored in circulating memory 2.
S2, splicing identification module 3 obtains each boundary information splice point set in circulating memory 2, element below boundary in higher level's electric network model is all deleted, make one end of main transformer high-pressure side outlet be connected to bus at the corresponding levels, the other end is unsettled, then the high-pressure side outlet of subordinate's electric network model is connected with the free end of higher level's electric network model high-pressure side outlet, complete the grid model splicing of boundary, and label to completing the boundary of splicing, upgrade circulating memory 2, the boundary information that completes sign is stored to database 4 simultaneously, be convenient to check in the future.
As splicing between net is economized, element below boundary in network regulation model is all deleted, make outlet one end, main transformer high-pressure side be connected to 500kV bus, the other end is unsettled, then the 220kV electric pressure electric network model of economizing main transformer in mode transfer type and connect is connected to the free end of network regulation model mesohigh side outlet by its high-pressure side outlet, completes the grid model splicing that net is economized boundary.For another example to splicing between province ground, by economizing the element below boundary in mode transfer type, all delete, make outlet one end, main transformer high-pressure side be connected to 220kV bus, the other end is unsettled, then main transformer in ground mode transfer type and the 110kV electric pressure electric network model that connects thereof are connected to the free end of province's mode transfer type mesohigh side outlet by its high-pressure side outlet, complete the grid model splicing of province's ground boundary.
Boundary information in S3, the interior splice point set of 5 pairs of memories 2 of splice point set identification judge module travels through, judge whether that all boundarys all complete sign, if, the grid model splicing that the whole network is described completes, if not, to splicing identification module 3, send splicing notice, splicing identification module 3 completes the not splicing of the boundary of sign, and labels.
The multistage grid model splicing system of adjusting and calculating of relaying protection, comprises information acquisition module 1, circulating memory 2, splicing identification module 3, database 4 and splice point set identification judge module 5; Information acquisition module 1 is stored main transformer high-pressure side communication to the circulating memory 2 of the electric network models at different levels that gather; Splicing identification module 3 obtains each boundary information splice point set in circulating memory 2, to each boundary, to carry out take main transformer be the splicing of boundary model and label, identification information is transferred to circulating memory 2, the identification information of circulating memory 2 each boundarys of real-time update, simultaneously, splicing identification module 3 is also stored the boundary information input data storehouse 4 that completes sign, is convenient to check in the future; Boundary information in the interior splice point set of 5 pairs of memories 2 of splice point set identification judge module travels through, judge whether that all boundarys all complete sign, if, the grid model splicing that the whole network is described completes, if not, to splicing identification module 3, send splicing notice, splicing identification module 3 completes the not splicing of the boundary of sign, and labels.
The above execution mode is only that the preferred embodiment of the present invention is described; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection range of claims of the present invention.
Claims (4)
1. for the multistage grid model splicing method of adjusting and calculating of relaying protection, it is characterized in that, the method be take the outlet of main transformer high-pressure side and is carried out the grid model splicing of the whole network as boundary model.
2. the grid model splicing method for the multistage calculating of adjusting of relaying protection according to claim 1, is characterized in that, specifically comprises the step of following order:
(1) the main transformer high-pressure side information of Real-time Collection electric network models at different levels, using outlet, main transformer high-pressure side as the boundary of splicing, gathers each boundary with the set of composition splice point and is stored to memory;
(2) to each boundary in described splice point set, to carry out take main transformer be the splicing of boundary model and label, more new memory;
(3) judge that whether each boundary in described splice point set is all identified, if so, the grid model splicing of the whole network completes, and if not, returns to step (2).
3. according to claim 2 for the multistage grid model splicing method of adjusting and calculating of relaying protection; it is characterized in that; in step (2); each boundary in described splice point set is carried out take the splicing of main transformer as boundary model; be specially: one end of the main transformer high-pressure side outlet of higher level's electric network model is set to free end; the high-pressure side outlet that the other end connects bus ，Jiang at the corresponding levels subordinate electric network model is connected with described free end.
4. for the multistage grid model splicing system of adjusting and calculating of relaying protection, it is characterized in that, comprise information acquisition module, splicing identification module and splice point set identification judge module;
Described information acquisition module, for the main transformer high-pressure side information of Real-time Collection electric network models at different levels, using outlet, main transformer high-pressure side as the boundary of splicing, gathers each boundary with the set of composition splice point and is stored to memory;
Described splicing identification module, for each boundary of described splice point set to be carried out to take main transformer be the splicing of boundary model and label, new memory more;
Described splice point set identification judge module, whether all identified for judging each boundary of described splice point set.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808549A (en) * | 2015-04-03 | 2015-07-29 | 王顺江 | Measurement and control device with power grid model assembling function |
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| JP2000188825A (en) * | 1998-12-22 | 2000-07-04 | Meidensha Corp | Grounding system and protective system for incoming and distributing facility |
| CN102495850A (en) * | 2011-11-18 | 2012-06-13 | 中国南方电网有限责任公司 | Method for splicing multi-stage multi-region interconnected power grid relay protection model |
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| JP2000188825A (en) * | 1998-12-22 | 2000-07-04 | Meidensha Corp | Grounding system and protective system for incoming and distributing facility |
| CN102495850A (en) * | 2011-11-18 | 2012-06-13 | 中国南方电网有限责任公司 | Method for splicing multi-stage multi-region interconnected power grid relay protection model |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104808549A (en) * | 2015-04-03 | 2015-07-29 | 王顺江 | Measurement and control device with power grid model assembling function |
| CN104808549B (en) * | 2015-04-03 | 2017-12-29 | 王顺江 | Measure and control device with grid model splicing function |
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Application publication date: 20140122 |