CN103001318A - 61850-based intelligent transformer substation topology five-prevention implementing method - Google Patents
61850-based intelligent transformer substation topology five-prevention implementing method Download PDFInfo
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Abstract
The invention discloses a 61850-based intelligent transformer substation topology five-prevention implementing method which includes: the first step, analysis and extraction of connection relation of transformer substation equipment: analyzing and extracting equipment connection relation, described by connecting points and equipment endpoints, in an SSD (solid state drive) file; the second step, construction of a topology model based on the equipment connection relation: abstracting the equipment connection relation into 'graph', mapping he connecting points and the equipment endpoints into vertexes and edges of the graph to form a complete 'undirected graph'; the third step, abstracted expression of operation rules of equipment: summarizing the operation rules of the equipment and the converting the operation rules into expression capable of identified by computers; the fourth step, reasoning and operation of the operation rules of the equipment: matching abstracting rule of the equipment according to the undirected graph and a topology algorithm, and operating the extracting rule of the equipment to obtain a value which is an error prevention judging result. By the method, error prevention lock logic configuration is omitted, self adaptation is realized, workload in building and maintenance is reduced, complicity in use is lowered, and error operation is avoided.
Description
Technical field
The present invention relates to intelligent power transformation technical field, specifically refer to a kind of based on 61850 Intelligent transformer station topology, five anti-implementation methods.
Background technology
In the many unsafe factors that exist in electrical production, human error or carelessness are key factors complicated, the most unmanageable.Thereby make transformer station's misoperation fault have complex genesis, contingency, randomness height, prevention and the large characteristics of control difficulty.
" five anti-" of electric power system refer to: 1. prevent mistake minute, close circuit breaker and prevent that 2. on-load from dividing, closing isolating switch and preventing that 3. 4. the charged ground cutter (hanging earthing conductor) that closes from preventing from being with ground wire (grounding switch) to close circuit breaker 5. preventing mistakenly entering charged chamber, the anti-incorrect manipulation deadlock system goes through for many years research and development, extensively adopting at present, is to prevent that operations staff's misoperation from being the purpose important technique measure.But owing to be subject to the restriction of various subjective and objective conditions, existing all kinds of anti-error systems also reach far away desirable degree at present.In fact, existing anti-error system can not solve fool proof all problems.It is just for subject matter frequent, multiple in the anti-misoperation, a product that averages out between the two in anti-error requirement and simple and reliable requirement.Its limitation or even negative effect also are fairly obvious.Particularly very large variation has occured in the operational mode of electrical network at present, and unattended, the multi-Substation remote monitoring of transformer station had become main flow already, and consequent new demand also is that traditional anti-misoperation system is difficult to adapt to.
Present transformer station's microcomputer anti-error is to be concerned by the operation locking between the direct define equipment of attendant, each equipment want the anti-mis-logical of manual compiling not only workload make mistakes greatly and easily, and because latching logic is to write in advance extremely, so flexibility is poor, when equipment change or transformer station's reorganization and expansion, affected latching logic needs to rewrite, and maintenance workload is large.
Along with the high speed development of network technology, enter the engineering trial period by the technology development stage based on the Intelligent transformer station on the IEC61850 stipulations basis, intelligent substation has become the developing direction that the automation of transformation substations is built.At present generally realizes automatically generation based on 61850 the description document SSD of system, its to transforming plant primary equipment and annexation thereof be described as realizing a kind ofly exempting to dispose, adaptive anti-incorrect manipulation deadlock system provides necessary basis.
Summary of the invention
The present invention the above deficiency that will exist for traditional five-preventing system, provide a kind of according to SSD file and the automatic method that realizes five-defence block of equipment operating rule, be used for transformer station and prevent electric misoperation, accomplished the anti-misoperation locking logic exempt from the configuration and self adaptation, reduced maintenance workload, reduce the use complexity, but do not reduced reliability and tightness.
A kind of Intelligent transformer station topology five based on 61850 is prevented implementation methods, mainly may further comprise the steps:
(1) analysis of transforming plant primary equipment annexation and extraction: the primary equipment annexation in the SSD file is effectively analyzed and extracted, annexation between the primary equipment is by tie point (ConnectivityNode) and the common description of equipment end points (Terminal), therefore tie point and terminal point information need to be extracted and be cured in file or the database, as the basis of setting up topological model of back;
(2) topological model based on the primary equipment annexation makes up: the primary equipment annexation is abstracted into " figure ", tie point and equipment are mapped to respectively summit and the limit of figure, consist of complete " non-directed graph ", utilize adjacency matrix, depth-first, breadth First scheduling algorithm in the nomography realistic problem can be converted into a mathematical problem so that find the solution;
(3) abstract of equipment operating rule is expressed: with the operation rules of equipment sum up change into after concluding a kind of can be by the expression formula of computer identification, each kind equipment is summed up an expression.For example: the closing operation rule of ground cutter can be expressed as " the directive disconnecting link of cutter (ground wire) tie point all be minute ".Why being referred to as abstract and expressing, is because " cutter " that relate in this expressions or " disconnecting link " do not have specific to some equipment, just can be specific when concrete example need to be arranged;
(4) reasoning of equipment operating rule and computing: utilize the abstraction rule of topological algorithmic match equipment according to above-mentioned non-directed graph, the arithmetic facility abstraction rule obtains a value, and this value is the anti-false judgment result.When a certain equipment need to operate, at first according to abstraction rule of its type matching, then obtain this regular value (true or false) by reasoning and calculating, thereby whether the operation rules of judging this equipment satisfies, and then reach the purpose that prevents misoperation.
Description of drawings
Fig. 1 topology five-preventing system schematic diagram.
Fig. 2 is the primary connection illustrated example.
Fig. 3 is the topology diagram of primary connection figure shown in Figure 2.
Fig. 4 is topological structure adjacency matrix shown in Figure 3.
Fig. 5 equipment operating rule-based reasoning operational flowchart.
Embodiment
A kind of Intelligent transformer station topology five based on 61850 is prevented implementation methods, mainly may further comprise the steps:
(1) analysis of transforming plant primary equipment annexation and extraction: the primary equipment annexation in the SSD file is effectively analyzed and extracted, annexation between the primary equipment is by tie point (ConnectivityNode) and the common description of equipment end points (Terminal), therefore tie point and terminal point information need to be extracted and be cured in file or the database, as the basis of setting up topological model of back;
(2) topological model based on the primary equipment annexation makes up: the primary equipment annexation is abstracted into " figure ", tie point and equipment are mapped to respectively summit and the limit of figure, consist of complete " non-directed graph ", utilize adjacency matrix, depth-first, breadth First scheduling algorithm in the nomography realistic problem can be converted into a mathematical problem so that find the solution;
(3) abstract of equipment operating rule is expressed: with the operation rules of equipment sum up change into after concluding a kind of can be by the expression formula of computer identification, each kind equipment is summed up an expression.For example: the closing operation rule of ground cutter can be expressed as " the directive disconnecting link of cutter (ground wire) tie point all be minute ".Why being referred to as abstract and expressing, is because " cutter " that relate in this expressions or " disconnecting link " do not have specific to some equipment, just can be specific when concrete example need to be arranged;
(4) reasoning of equipment operating rule and computing: utilize the abstraction rule of topological algorithmic match equipment according to above-mentioned non-directed graph, the arithmetic facility abstraction rule obtains a value, and this value is the anti-false judgment result.When a certain equipment need to operate, at first according to abstraction rule of its type matching, then obtain this regular value (true or false) by reasoning and calculating, thereby whether the operation rules of judging this equipment satisfies, and then reach the purpose that prevents misoperation.
The present invention comprises that mainly primary equipment annexation extraction module, topological model make up module, equipment operating rule base, computing inference engine etc. and partly form.
At first, SSD file according to the standard of transformer station configuration tool output is derived primary equipment and annexation thereof, and solidify to form topological database (need to extend or structure changes when transformer station later on, only need again to derive and upgrade this topological database and get final product, need not other changes); Then, topological model makes up module and reads and analyze topological data, according to non-directed graph modeling needs data is wherein carried out being written into the complete topological model of formation after the necessary processing; Summary equipment operating rule is carried out the abstract of computer language and is processed the forming device operation rule library to rule; The computing inference engine receives topological model and the combination of equipment operating rule base five of outside and prevents carrying out necessary rule match and logical operation work behind the check commands, and operation result is returned to caller during the program operation.
The analysis of transforming plant primary equipment annexation and extraction
The SSD file of standard is expressed as following form with the annexation of primary equipment:
＜Substation name=" Jin Nanbian " 〉
<VoltageLevel?name="110KV-1">
＜Bay name=" bridge in the 1# " 〉
＜ConductingEquipment type=" DIS " name=" every cutter 5001 " 〉
<Terminal?name="Term1"?cNodeName="N41"?...?/>
<Terminal?name="Term2"?cNodeName="N40"?.../>
</ConductingEquipment>
＜ConnectivityNode name=" N40 " pathName=" bridge/N40 in Jin Nanbian/110KV-1/1# "/〉
＜ConnectivityNode name=" N41 " pathName=" bridge/N41 in Jin Nanbian/110KV-1/1# "/〉
</Bay>
</VoltageLevel>
</?Substation>
Several end points (Terminal) are arranged under each equipment, each end points is connected on the tie point (ConnectivityNode), can use two these annexations of data table stores, one is the tie point table, comprised connection point information all on the primary connection figure (comprising tie point title and numbering), another table is the equipment endpoint table, has comprised the terminal point information (comprising end points name, related connection roll-call, corresponding device etc.) of all primary equipments.The data that derive are stored with following structure.
The information of struct Terminal // end points
{
Char szTerminalName[32]; // end points name
Char szEquipmentName[128]; // corresponding device name
Char szConnectivityNode[32]; // related connection is called the roll
};
The information of struct ConnectivityNode // tie point
{
Char szConnectivityNodeName[32]; // connect and call the roll
Char szConnectivityNodePath[128]; // tie point path
Int nVoltageLevel; // electric pressure
};
Topological model based on the primary equipment annexation makes up
The transforming plant primary equipment annexation is abstracted into a non-directed graph (undirected graph), two tuples that namely consisted of by vertex set and limit collection, wherein tie point is mapped to the summit, the device map limit.Unified number (since 0) is carried out on summit among the figure, and the attribute on summit is the attribute of this tie point, and these tie points may be inlet wire, outlet, the earth, generic connectivity point etc.; Limit among the figure is the equipment between corresponding two tie points, here said equipment refer to circuit breaker, isolation switch, cutter etc. have deciliter state of switch equipment, its attribute is the attribute on limit.
Information creating adjacency matrix according to the limit, concrete grammar is: create a two-dimensional array graph[n] [n] (n is that number of vertices is the exponent number that forms adjacency matrix), travel through each switchgear, two vertex number i of taking equipment corresponding sides and j, the rubidium marking of the capable j row of i is 1 in the matrix, i.e. graph[i] [j]=1.So can generate adjacency matrix.
Create adjacency table according to adjacency matrix, adjacency table is mainly used in the algorithm of depth-first and breadth First traversing graph, concrete grammar is: the traversal adjacency matrix creates the tie point that a storage of linked list has with it connected relation for each tie point, and this chained list is adjacency table.Adjacency table is the important component part that topological model makes up, and is the basis of topological algorithm.
The abstract of equipment operating rule is expressed
According to long-term five anti-application experience equipment operating rules can be abstract be expressed as:
(1) the topological proofing rules of switch
Switch is not considered here with the correct result of the simulated operation condition as open operation.
(2) the topological proofing rules of isolation switch (containing dolly)
Normally: 1. the switch that directly links to each other of isolation switch is necessary for minute, if not have the switch that directly links to each other then its switch that indirectly links to each other of deep search, all switches that search all should divide.
2. extended to all directions by this disconnecting link both sides wire and do not have ground wire or earthing co-bit in the electrical wiring that consists of till all disconnecting links.Still being considered as wire if any equipment such as switch, transformer, current transformer, series reactors therebetween is communicated with.
Minute rule: the switch that isolation switch directly links to each other is necessary for minute, if not have the switch that directly links to each other then its switch that indirectly links to each other of deep search, all switches that search all should divide.
Exception: (namely both sides are equipotential before deciliter disconnecting link) that isolation switch both sides other closed switch, disconnecting link in standing are connected to a conducting loop can operate.
(3) the topological proofing rules of grounding switch (earth connection)
Normally: the directive isolation switch of grounding switch (earth connection) non-ground-end tie point institute has the equipment such as switch, transformer, current transformer, series reactor still to be considered as wire therebetween and links to each other all in a minute position.
Divide rule: nothing.
The reasoning of equipment operating rule and computing
With the said equipment normally and minute the rule carry out reasoning and computing as criterion at the topological model of building up, if criterion is set up normally, represent that then this equipment allows closing operation, if a minute regular criterion is set up, represent that then this equipment allows a minute operation, empty criterion is regarded permission operation, reasoning calculating process such as Fig. 5 without exception as.
Present embodiment compared with prior art realized the anti-misoperation locking logic exempt from the configuration and self adaptation, reduced construction and maintenance workload, reduced the use complexity, prevent the advantages such as misoperation.
Claims (1)
1. the Intelligent transformer station topology five based on 61850 is prevented implementation methods, it is characterized in that, mainly may further comprise the steps:
(1) analysis of transforming plant primary equipment annexation and extraction: the primary equipment annexation in the SSD file is effectively analyzed and extracted, and the annexation between the primary equipment is by tie point (ConnectivityNode) and the common description of equipment end points (Terminal);
(2) topological model based on the primary equipment annexation makes up: the primary equipment annexation is abstracted into " figure ", tie point and equipment are mapped to respectively summit and the limit of figure, consist of complete " non-directed graph ", utilize adjacency matrix, depth-first, breadth First scheduling algorithm in the nomography that a realistic problem is converted into a mathematical problem;
(3) abstract of equipment operating rule is expressed: with the operation rules of equipment sum up change into after concluding a kind of can be by the expression formula of computer identification, each kind equipment is summed up an expression;
(4) reasoning of equipment operating rule and computing: utilize the abstraction rule of topological algorithmic match equipment according to above-mentioned non-directed graph, the arithmetic facility abstraction rule obtains a value, and this value is the anti-false judgment result.
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| CN103761413A (en) * | 2013-12-06 | 2014-04-30 | 云南电网公司大理供电局 | Substation anti-misoperation logic intelligent generating method based on topology analysis |
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| CN105590145B (en) * | 2016-01-11 | 2019-11-15 | 北京交通大学 | The recognition methods of most short connection distance between primary equipment in substation and device |
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| CN112086969A (en) * | 2020-09-18 | 2020-12-15 | 国网江苏省电力有限公司电力科学研究院 | Infmap algorithm-based power distribution network edge division method and device |
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