CN102867091B - The quantitation modification method of a kind of electric network current diagram - Google Patents
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Abstract
The present invention discloses the quantitation modification method of a kind of electric network current diagram, the restructuring of electric network model layer of structure is first carried out headed by its step, carry out voltage class ranges to electric network model to define, then model incremental calculating is carried out, the result calculated according to model incremental again calculates figure increment, finally according to the result of calculation of figure increment, electric network model is carried out to the correction of figure increment.The present invention can realize the quantitation renewal of electric network current diagram in electrical network full voltage rate range in electric system a certain control center compass of competency or single voltage class ranges, namely, on the basis realizing full graphics renewal, when making to revise, non-changing part is without deleting and regenerating at every turn; Meanwhile, the present invention, by figure increment and the model incremental one_to_one corresponding based on IEC61970/CIM model criteria, makes the change in electric network swim be highly susceptible to identification, greatly can reduce the work difficulty of dispatching of power netwoks personnel, operations staff.
Description
Technical field
The present invention relates to dispatching automation of electric power systems technical field, specifically the quantitation modification method of a kind of electric network current diagram.
Background technology
Electric network current diagram is yardman, operations staff judges electrical network real-time running state, formulate the relevant method of operation and turnaround plan and carry out operating the important evidence of the work such as check.Tidal current chart in electric power scheduling automatization system has generally all possessed the real-time information such as circuit-breaker status, trend and direction of tide display, require layout and cabling clear, thus make dispatcher very clear, be convenient to scheduling decision.Current electric network current diagram generally adopts artificial drafting mode, namely after transformer station or circuit change, upgrades communication relationship and tidal current chart by operation maintenance personnel after completing modeling according to as-constructed drawing is manual.
But along with the continuous increase of electrical network scale, upgrade the task of drawing electric network wiring scheme by means of manpower more and more arduous, limitation and the weak point of manual drawing mode display gradually:
1) along with the continuous increase of transformer station and circuit, the task of drawing is more and more arduous, and Hand drawing is not only time-consuming, the manpower of at substantial;
2) hand-drawing style is easily subject to the impact of different drawing personnel personal habits, and the standardization, the unification that realize tidal current chart description and display are very difficult;
3) the artificial tidal current chart drawn cannot adjust according to the planning and development of later stage electrical network preferably, when when newly-increased transformer station, original layout cannot meet local space requirements, needs to change on a large scale;
4) tidal current chart maintainer limits by professional face, not can accurately grasp electrical network communication relationship, along with electric network reconstruction engineering is constantly being carried out, the mistake of any one electric components all may cause erroneous judgement even to cause mistuning degree accident, to related personnel, this safeguards that electrical network communication chart causes great difficulty.
Adopt the tidal current chart of manual drawing more and more to present crowded in disorder state, skewness, make the extremely difficult identification of dispatcher.
Intelligent scheduling is as an important component part of intelligent grid building-up work, and its effect highlights gradually.Electrical network communication chart intelligent distribution, wiring and information technology for revealing, integrate transmission and distribution networks, the electrical network communication chart self routing of different electric pressure and the intelligence of real time data needed for yardman can be provided to represent function, can originate as the basic data of intelligent scheduling simultaneously, it is one of intelligent scheduling shoring of foundation technology, make the ruuning situation that supervision electrical network that dispatcher can be directly perceived, perceptual is real-time, the situation of change of accurately real-time reflection electrical network.Therefore the automatically more newly-generated and intellectuality of electric network current diagram represents and just seems extremely important.
And the current electrical network communication relationship automatic routing system based on grid model data, be all adopt the method being similar to labyrinth algorithm substantially, its remarkable shortcoming is: (1) is long for computing time, is not suitable for large-scale system automatic placement and routing; (2) placement-and-routing's result has randomness, and after electric network composition changes, original placement-and-routing style is difficult to keep, have impact on practicality.
Summary of the invention
The object of this invention is to provide the quantitation modification method of a kind of electric network current diagram, it can realize the quantitation renewal of electric network current diagram in electrical network full voltage rate range in electric system a certain control center compass of competency or single voltage class ranges, namely, on the basis realizing full graphics renewal, when making to revise, non-changing part is without deleting and regenerating at every turn; Meanwhile, the present invention, by figure increment and the model incremental one_to_one corresponding based on IEC61970/CIM model criteria, makes the change in electric network swim be highly susceptible to identification, greatly can reduce the work difficulty of dispatching of power netwoks personnel, operations staff.
For achieving the above object, the technical scheme that the present invention takes is: the quantitation modification method of a kind of electric network current diagram, and it comprises the following steps:
(1) electric network model layer of structure restructuring: voltage class ranges is carried out to electric network model and defines, then from block mold, extract each local complete model, local complete model is carried out to the scope definition of device object, and safeguard that the logical relation between each device object is constant, make it meet existing electrical network universal model Description standard; Select to be defined as the device object of transformer as border object in the complete model of local simultaneously;
(2) in step (1) each local complete model of confining spectrum carry out model incremental calculating, step is:
(2.1) the first buffer zone and the second buffer zone are set; By model corresponding for electric network current diagram before electric network model restructuring, and the electrical network updated model after restructuring, both meet the XML document of IEC61970/CIM standard, import the first buffer zone and the second buffer zone respectively; Then, respectively in the first buffer zone and the second buffer zone, set up the hierarchical relationship corresponding with model and describe;
(2.2) read the whole model object contents in confining spectrum, in the model scope of the first buffer zone, carry out the topology coloring based on equipment physical node; Painted complete after, according to the color number on physical node, subregion model to be compared in the first buffer zone is divided into interior zone, borderline region and perimeter, the perimeter of model is excised, make inner to realize splitting with border;
When generating electrical network panorama tidal current chart according to voltage class ranges, its corresponding model is the part in world model, therefore has the concept such as border, subregion.Color number on the physical node of the interior zone after subregion model partition and relevant device all of the port is not all 0; Color part on the physical node of borderline region and relevant device section ports is 0, and part is not 0; Color number on the physical node of perimeter and the whole port of relevant device is 0;
(2.3) adopt the mode calculated to bottom from the top of hierarchical relationship, calculate the model incremental between the second buffer zone and the first buffer zone, the expression of model incremental result adopts the complete trails of resource descriptor RDFID form to express;
The description of object hierarchical relationship has son after will following and first having father, otherwise during deletion then, hierarchical relationship top is parent; Model incremental calculates to adopt carries out from the top of hierarchical relationship to bottom, namely member object class after first container class, and certain one deck container class object has increment, and below it, increment then need not calculate again;
(3) figure incremental computations, step is:
(3.1) according to the database that the content refresh Drawing Object of model incremental calculating is corresponding, delete the corresponding object in the corresponding model of the front electric network current diagram of restructuring according to " subtracting list of devices ", deletion is sequentially for carry out from the bottom of hierarchical relationship to top; Insert object new in the corresponding model of the rear electric network current diagram of restructuring in a database according to " increasing list of devices ", and the database object key word newly obtained is assigned to the corresponding object in the first buffer zone; Insertion sequence is carry out from the top of hierarchical relationship to bottom;
(3.2) be global pattern increment according to tidal current chart voltage class ranges by whole electric network model Full filtering trail;
(4) figure increment correction: the figure increment that step (3) calculates is divided into multiple increment set, multiple independent process is subdivided into according to the mode of member after first container by increment, increment as little in correspondence, newly-increased transformer station, the increment set of this step comprises: plant stand pel (normally rectangle frame), internal main wiring pel (containing bus, mother, outlet switch, Dynamic link library line etc.); Then the correction of figure increment is carried out successively according to each increment set; Concrete steps are:
(4.1) single increment range of convergence is chosen: utilize topology coloring method, painted on single increment object, carries out connecting relation flowing, be connect branch road with line segment, end points is joint, with the point of placement position that former electric network current diagram has living space for border, and Circular coloring; After painted end, colored areas part is the simple subprogram set of increment object;
(4.2) incremental area location: with the volume coordinate of the boundary node of colored areas association for polygon geometric point, calculate its center position;
(4.3) incremental area exempts from calculated crosswise: the spatial arrangement order revising object in incremental area; Object in increment object and outside non-changing region has topological connection relation, and then original locus of outside affiliated partner can be obtained, calculate the position of the association center of gravity of newly-increased object thus, calculate section scope and go out to intersect minimum scheme according to outlet direction analog computation;
(4.4) displacement of the external connecting object placement in incremental area is calculated;
(4.5) wiring correction is carried out to incremental area;
(4.6) revised incremental area is identified; Repeat step (4.1) to step (4.6) until all increment set are all revised.
During according to graphics primitive object in the content correction tidal current chart file in the figure increment that step (3) calculates, first be delete graphics primitive object, then be increase graphics primitive object, particularly need logically relation to confirm affiliated partner position or the associated region position of newly-increased object when doing increment, and revise position and the connecting relation pel thereof of affected original graphics primitive object, affiliated partner on figure is selected mainly to realize by the connecting relation in electric network model topology, its motion direction comprises up and down, independently revises by step; For the independent variation incremental area of onrelevant object, choose the shortest affiliated partner of geometric distance position in the graphic with reference to geography information position and carry out reference.The present invention, when there being figure increment, needing to delete white space, or reserving to the put area of new object, therefore needs to revise region of variation, first deletes the overall pel of range of influence, then regenerate; The method comparatively revising original pel (comprising position, size, path) greatly reduces complexity.
The present invention utilizes hierarchical structure to describe electric network composition and to change the method for front and back electric network model, adopting the object of this structure to be for the follow-up quotient of difference based on the model cutting on topology coloring basis and model change is comparatively prepared, is also ensure that the results model after quotient of difference comparatively can be the final description meeting IEC61970/CIM standard from hierarchical relationship cooperating measure in addition.Further, in the present invention, the foundation of step (2.1) middle-level relationship description comprises the following steps:
(2.1.1) resource identifier of apparatus for establishing object and the mapping relations of sequence number;
(2.1.2) circulation processes all devices object, according to the resource identifier of each device object said container, and the resource identifier of other incidence relation and topological relation, the hierarchical relationship structure between apparatus for establishing object and its container.
Beneficial effect of the present invention is:
1, the quantitation renewal of electric network current diagram in electrical network full voltage rate range in electric system a certain control center compass of competency or single voltage class ranges is achieved, correction result and electric network model topological coherence, each objects association and topological connection relation figure describe accurately, tally with the actual situation, object is without disappearance or redundancy, and tidal current chart correction result meets IEC61970/SVG standard;
2, achieve the full graphics update mode of increment change, when revising, do not need again delete the figure of non-changing part and generate at every turn;
3, figure increment and model incremental one_to_one corresponding;
4, under the prerequisite that model incremental calculates based on the XML document of IEC61970/CIM model criteria, special provision and requirement are not done to model data, protects various resources to greatest extent, reduce working strength and the difficulty of affiliated party;
5, figure incremental computations result inherits the original attributive character of object completely, is conducive to realizing changing based on the graphics relationship of SVG standard, and when receiving the metric data forwarded, data hint obliquely at the foundation of relation;
6. utilize Increment Cycle, multi-step achieves electric network current diagram complete modification, and speed is faster, and placement-and-routing's style, has inheritance.
Accompanying drawing explanation
Figure 1 shows that the hierarchical relationship structural representation of a kind of specific embodiment in the present invention;
Figure 2 shows that model incremental calculation flow chart in the present invention;
Figure 3 shows that figure increment correction process flow diagram of the present invention;
Embodiment
For making content of the present invention more become apparent, be described further below in conjunction with the drawings and specific embodiments.
The quantitation modification method of electric network current diagram of the present invention comprises the following steps:
(1) electric network model layer of structure restructuring: carry out voltage class ranges to electric network model and define, traditional electric network current diagram is generally divided into single electric pressure or multi-voltage grade tidal current chart, as 500kV system load flow figure or 500kV+220kV system load flow figure; After voltage class ranges defines, from block mold, extract each local complete model, local complete model is carried out to the scope definition of device object, and safeguard that the logical relation between each device object is constant, make it meet electrical network universal model Description standard, namely CIM describes; As shown in Figure 1, device object comprises container class and the non-container class objects such as circuit, plant stand, switch tool.Select to be defined as the device object of transformer as border object in the complete model of local, its form of expression defines, and comprising: the display form being terminal transformer or connecting transformer and winding;
(2) in step (1) each local complete model of confining spectrum carry out model incremental calculating, composition graphs 2, step is:
(2.1) the first buffer zone and the second buffer zone are set; By model corresponding for electric network current diagram before electric network model restructuring, and the electrical network updated model after restructuring, both meet the XML document of IEC61970/CIM standard, import the first buffer zone and the second buffer zone respectively; Then, respectively in the first buffer zone and the second buffer zone, set up as shown in Figure 1, the hierarchical relationship corresponding with model describes;
(2.2) read the whole model object contents in confining spectrum, in the model scope of the first buffer zone, carry out the topology coloring based on equipment physical node; Painted complete after, according to the color number on physical node, model to be compared in the first buffer zone is divided into interior zone, borderline region and perimeter, the perimeter of model is excised, make inner to realize splitting with border;
(2.3) adopt the mode calculated to bottom from the top of hierarchical relationship, calculate the model incremental between the second buffer zone and the first buffer zone, the expression of model incremental result adopts the complete trails of resource descriptor RDFID form to express;
(3) figure incremental computations, the object of figure incremental computations is by the object in original electric network current diagram, additions and deletions amendment is carried out according to the object in updated model and relation thereof, realizing the one_to_one corresponding of figure and model, is also topological logic relation after ensureing to revise on electric network current diagram and the conforming key of logical relation between the object in realistic model in addition.Figure increment filters according to viewport region (by electric pressure or border, or managing subregion) on the basis of model incremental;
The step of figure incremental computations is:
(3.1) according to the database that the content refresh Drawing Object of model incremental calculating is corresponding, delete the corresponding object in the corresponding model of the front electric network current diagram of restructuring according to " subtracting list of devices ", deletion is sequentially for carry out from the bottom of hierarchical relationship to top; Insert object new in the corresponding model of the rear electric network current diagram of restructuring in a database according to " increasing list of devices ", and the database object key word newly obtained is assigned to the corresponding object in the first buffer zone; Insertion sequence is carry out from the top of hierarchical relationship to bottom, contrary with deletion direction;
(3.2) be global pattern increment according to tidal current chart voltage class ranges by whole electric network model Full filtering trail;
(4) figure increment correction, namely according to the graphics primitive object in the content correction tidal current chart file in the figure increment calculated, first be delete pel, then be increase graphics primitive object, particularly need logically relation to confirm affiliated partner position or the associated region position of newly-increased object when doing increment, and revise position and the connecting relation pel thereof of affected original graphics primitive object, affiliated partner on figure is selected mainly to realize by the connecting relation in electric network model topology, its motion direction comprises up and down, independently revises by step.For the independent variation incremental area of onrelevant object, choose the shortest affiliated partner of geometric distance position in the graphic with reference to geography information position and carry out reference; When revising, the figure increment that step (3) calculate can be divided into multiple increment set, and carry out the correction of figure increment according to each increment set successively; Concrete steps are:
(4.1) single increment range of convergence is chosen: utilize topology coloring method, painted on single increment object, carries out connecting relation flowing, be connect branch road with line segment, end points is joint, with the point of placement position that former electric network current diagram has living space for border, and Circular coloring; After painted end, colored areas part is the simple subprogram set of increment object;
(4.2) incremental area location: with the volume coordinate of the boundary node of colored areas association for polygon geometric point, calculate its center position;
(4.3) incremental area exempts from calculated crosswise: the spatial arrangement order revising object in incremental area;
(4.4) displacement of the external connecting object placement in incremental area is calculated;
(4.5) wiring correction is carried out to incremental area;
(4.6) revised incremental area is identified; Repeat step (4.1) to step (4.6) until all increment set are all revised.
Composition graphs 1 and Fig. 2, the foundation of the middle-level relationship description of the present invention, step when it is specifically implemented is:
(2.1.1) map<> is utilized to map, that sets up the resource identifier rdfid of device object in CIM/XML and sequence number hints obliquely at relation, wherein, man-to-man map<string, int> type relation has: voltage type, company, sub-control area, plant stand, electric pressure, transformer, physical node; And the map<string of one-to-many, vector> type relation has: hinting obliquely between the rdfid of equipment and the rdfid of port;
(2.1.2) circulation processes all devices object, according to the resource identifier of each device object said container, and the resource identifier of other incidence relation and topological relation, set up the hierarchical relationship structure between object and its container according to the rdfid of its said container MemberOf and the rdfid of other incidence relation and topological relation, available two-dimensional array relation or hierarchical pointer relationship describe.Individual layer circulation can realize, non-nesting process; The concrete software program that Fig. 2 is corresponding can utilize existing software programming technique to realize.
Be below a specific embodiment of the present invention, include the quantitation makeover process of the concrete electric system electric network current diagram of of adopting method of the present invention to realize.
The quantitation correction of electric network current diagram:
Modification model: electric system regional dispatching center, the region of direct scheduling controlling comprises circuit, the connecting transformer of all 220Kv/110Kv/35Kv electric pressures, and the genset of the network of part 10Kv and directly scheduling.The basis at regional power grid scheduling center is total system electric network current diagram in range of management, after electric network composition changes, describe electric network model change so that need revise electric network current diagram, practical structures and the state of electrical network can be reflected in time.
Increment correction object: amendment electric network current diagram, and with keep the artwork consistance of electric network model of regional grid control centre, form the full electric network tidal current chart that comprises compass of competency, regional dispatching center whole electricity grid network structure (220Kv and following network), need to keep integral layout style consistent, for the operation of power networks scheduling based on overall tidal current chart provides basic with analysis decision simultaneously.
Electric network model present situation: in the network data base of the energy management system (EMS) of the resident regional grid dispatching center of electric network model.The model of EMS for being set as heterogeneous system, but can derive the network model of its electric system according to IEC61970/CIM standard by XML format.
The architecture of the quantitation update the system of electric network current diagram: the process flow diagram shown in composition graphs 3, CIM/XML is derived at regional dispatching center, or directly obtains with api interface function; The model obtained enters the quantitation update the system of electric network current diagram after resolving.System, without hardware requirement, can directly be embedded on the operation workstation of automation system for the power network dispatching.
Step: according to step of the present invention (1) to the electric network current diagram correction flow process of step (4), first import the electric network model of a certain area control center, and resolve; Then carry out hierarchical relationship description, model cutting, quotient of difference comparatively, model object renewal, the step such as topological relation renewal, complete the incremental computations process of the model of single area, stored in the first buffer zone.Repeat above step and import electric network model corresponding to the front electric network current diagram of change, stored in the second buffer zone, compare the content of two buffer zones, convert model incremental to and calculate; Figure incremental computations is completed again according to model incremental result of calculation; Then circulation pattern increment forms global pattern increment; Last correction pattern increment.
Result verification: by verifying the consistance of revised electric network current diagram and actual electric network model structure, and then the revised accuracy of checking electric network current diagram; After delete a certain bar circuit or plant stand from the full model imported, after corresponding correction, in electric network current diagram, no longer comprise this circuit and plant stand, again prove the validity of increment correction electric network current diagram result of the present invention.
The present invention is illustrated according to the preferred embodiment, should be appreciated that but above-described embodiment does not limit the present invention in any form, the technical scheme that the form that all employings are equal to replacement or equivalent transformation obtains, and all drops within protection scope of the present invention.
Claims (2)
1. the quantitation modification method of electric network current diagram, is characterized in that, comprise the following steps:
(1) electric network model layer of structure restructuring: voltage class ranges is carried out to electric network model and defines, then from block mold, extract each local complete model, local complete model is carried out to the scope definition of device object, and safeguard that the logical relation between each device object is constant, make it meet electrical network universal model Description standard; Select to be defined as the device object of transformer as border object in the complete model of local simultaneously;
(2) in step (1) each local complete model of confining spectrum carry out model incremental calculating, step is:
(2.1) the first buffer zone and the second buffer zone are set; By model corresponding for electric network current diagram before electric network model restructuring, and the electrical network updated model after restructuring, both meet the XML document of IEC61970/CIM standard, import the first buffer zone and the second buffer zone respectively; Then, respectively in the first buffer zone and the second buffer zone, set up the hierarchical relationship corresponding with model and describe;
(2.2) read the whole model object contents in confining spectrum, in the model scope of the first buffer zone, carry out the topology coloring based on equipment physical node; Painted complete after, according to the color number on physical node, model to be compared in the first buffer zone is divided into interior zone, borderline region and perimeter, the perimeter of model is excised, make inner to realize splitting with border;
(2.3) adopt the mode calculated to bottom from the top of hierarchical relationship, calculate the model incremental between the second buffer zone and the first buffer zone, the expression of model incremental result adopts the complete trails of resource descriptor RDFID form to express;
(3) figure incremental computations, step is:
(3.1) according to the database that the content refresh Drawing Object of model incremental calculating is corresponding, delete the corresponding object in the corresponding model of the front electric network current diagram of restructuring according to " subtracting list of devices ", deletion is sequentially for carry out from the bottom of hierarchical relationship to top; Insert object new in the corresponding model of the rear electric network current diagram of restructuring in a database according to " increasing list of devices ", and the database object key word newly obtained is assigned to the corresponding object in the first buffer zone; Insertion sequence is carry out from the top of hierarchical relationship to bottom;
(3.2) be global pattern increment according to tidal current chart voltage class ranges by whole electric network model Full filtering trail;
(4) figure increment correction: the figure increment that step (3) calculates is divided into multiple increment set, and carry out the correction of figure increment according to each increment set successively; Concrete steps are:
(4.1) single increment range of convergence is chosen: utilize topology coloring method, painted on single increment object, carries out connecting relation flowing, be connect branch road with line segment, end points is joint, with the point of placement position that former electric network current diagram has living space for border, and Circular coloring; After painted end, colored areas part is the simple subprogram set of increment object;
(4.2) incremental area location: with the volume coordinate of the boundary node of colored areas association for polygon geometric point, calculate its center position;
(4.3) incremental area exempts from calculated crosswise: the spatial arrangement order revising object in incremental area;
(4.4) displacement of the external connecting object placement in incremental area is calculated;
(4.5) wiring correction is carried out to incremental area;
(4.6) revised incremental area is identified; Repeat step (4.1) to step (4.6) until all increment set are all revised.
2. the quantitation modification method of electric network current diagram according to claim 1, is characterized in that, the foundation of step (2.1) middle-level relationship description comprises the following steps:
(2.1.1) resource identifier of apparatus for establishing object and the mapping relations of sequence number;
(2.1.2) circulation processes all devices object, according to the resource identifier of each device object said container, and the resource identifier of other incidence relation and topological relation, the hierarchical relationship structure between apparatus for establishing object and its container.
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