CN105938506A - Graph visualization system for power grid power flow analysis - Google Patents
Graph visualization system for power grid power flow analysis Download PDFInfo
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- CN105938506A CN105938506A CN201610228495.2A CN201610228495A CN105938506A CN 105938506 A CN105938506 A CN 105938506A CN 201610228495 A CN201610228495 A CN 201610228495A CN 105938506 A CN105938506 A CN 105938506A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
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Abstract
The present invention relates to a graphical visualization system for power grid power flow analysis, comprising the following modules: a power grid wiring diagram instation diagram drawing module, an electrical element attribute data editing module, an operating data maintenance module, a graph display control module, a power grid graph editing module, a graph symbol library module, a graph output module, an on-graph query module and a line loss analysis result tagging module. According to the graph visualization system, topological information and element parameter information which are conveyed to a computer by a user through a graph editor can be converted into forms convenient for power system module computing program processing, graphical modeling of a power grid is achieved, visualization management can be performed on element parameters, foundation can be further provided for line loss analysis, and visualization of line loss information can be achieved.
Description
Technical field
The present invention relates to a kind of graphic visualization systems analyzed for electric network swim in field of power.
Background technology
Along with the development of China's economic construction, the construction of national grid develops rapidly, and the management difficulty of electrical network sharply increases immediately, electricity
Equipment in net gets more and more, and causes power network modeling also to become extremely complex.Power network modeling refers to record the genus of all devices in electrical network
Property information and the grid graph that all devices is attached.
In prior art, power network modeling comes the attribute information of recording equipment, and record in form generally by the mode of equipment form
The attribute information of equipment is separate with the graphical interfaces being attached by all devices.So cause the genus of charting equipment
Property information the most directly perceived, the most even repeat typing.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of graphic visualization systems analyzed for electric network swim, can realize each electricity
The electric hookup of pressure grade, and on figure, carry out electrical equipment and the amendment of attribute information thereof and inquiry, can divide according to line loss simultaneously
The result data of analysis automatically generates electric network current diagram.
A kind of graphic visualization systems analyzed for electric network swim, it includes with lower module:
Figure drafting module in electric network wiring scheme station, for providing the electric network wiring scheme of each electric pressure；
Electrical equipment attribute data editor module, for providing the attributes edit of electrical equipment；
Service data maintenance module, for realizing the editor's typing to operation of power networks data；
Graphics display control module, makes user that various graphical elements to carry out multiple display and controls operation；And
The editor module of grid graph, this module provides graphic plotting, edit tool, supports user to the editor of graph data and more
Newly.
Further, this system also includes graphical symbol library module: this module provide a set of symbolic library meeting power industry standard and
Line style storehouse, also provides for the drawing instrument that can customize, and user can add self-defining graphical symbol according to concrete demand, or
Existing graphical symbol is edited.
Further, this system also includes images outputting module: the parameter configuration files and the page that provide outut device are set by this module
Put interface and carry out the output of figure.
Further, this system also includes enquiry module on figure: this module can inquire about the technology ginseng of capital equipment on electric network wiring scheme
Number, carries out fuzzy query according to object properties, positions on map simultaneously.
Further, this system also includes line loss analyzing result labeling module: on the basis of electric network wiring scheme, according to line loss analyzing
The data that system obtains, by line loss information labeling on electrical network figure.
Further, the editor of the data of electrical equipment attribute data editor module has two ways: one is first to add on figure
One pel, then clicks on pel logging data in data inputting interface；One is by data inputting interface or by external file
By data inputting in lead-in mode, pel position is then selected to generate pel on figure.
Further, graphics display control module includes: the stepless zooming of figure, figure smooth roaming, can browse system simultaneously
Various graphical elements according to demand of specialty, are carried out tissue typing, definition by panorama sketch and local administrative division map, the Layering manifestation of object
Different figure layer, the attribute structure of figure layer and coding rules, is overlapped display as required to multi-layer image.
Further, the editor module of grid graph to the increase mode of Drawing Object a little, straight line, broken line, rectangle, ellipse,
Also include the deletion of Drawing Object, movement, amplify, reduce, the increase of Drawing Object node, delete and move, text object
Increasing, delete, move, system provides a set of symbolic library meeting power industry standard and line style storehouse, to ensure into the uniformity of figure
And standardization.
Further, the content that on figure, enquiry module can be inquired about includes: device name, actual load and permissible load.
The graphic visualization systems of the present invention is capable of the graphical modeling of all kinds of components and parts of electrical network, sets up, edits, inquires about, exports
Etc. function, user is conveyed to the topology information of computer with graphic editor and component parameters information is converted to be easy to power system mould
The form that type calculation procedure processes, and provide basis for carrying out line loss analyzing further.Another critical function of this system is exactly element
The visualized management of parameter.This system have employed interactively, towards the parameter management of dialog box and maintenance mode, user is permissible
Choosing element on figure, eject the parameter dialog box of respective element after selecting to arrange parameter menu, by dialog box, user can set
Put, the various parameters of modified elements.This parameter set-up mode, owing to component parameters is concentrated and explicit physical meaning, the most more
It is easily guaranteed that concordance and the correctness of parameter, the probability made mistakes during decreasing line loss analyzing, also makes parameter modification simultaneously
It is prone to carry out.Complete grid graph to draw, it is possible to use this grid graph carries out line loss analyzing, and the result of line loss analyzing can utilize
Line loss analyzing result labeling module shows on grid graph, it is achieved line loss information visuallization.
Accompanying drawing explanation
Fig. 1 shows the organization chart of the graphic visualization systems analyzed for electric network swim.
Fig. 2 shows the calculation process of trend method in the present invention.
Fig. 3 shows that in the present invention, grid line loss analyzes method.
Detailed description of the invention
A kind of graphic visualization systems analyzed for electric network swim, comprising:
(1) figure drafting module in electric network wiring scheme station: the graphic visualization systems analyzed for electric network swim provides each electric pressure
Electric network wiring scheme.Electric pressure includes: 500kV, 220kV, 110kV, 66kV, 35kV, 10kV and 0.4kV.Pass through figure
Mode manages the power equipment in the range of line loss analyzing, electrical equipment, is formed and has power network topology information, electrical equipment attribute information
Multi-zone supervision basic database, for line loss analyzing work provide Back ground Information.
(2) electrical equipment attribute data editor module: for providing the attributes edit of electrical equipment.Electrical equipment attribute data is compiled
The editor of the data collecting module has two ways: one is first to add a pel on figure, then clicks on pel at data inputting
Logging data in interface；One is by will in data inputting interface or the mode that imported by external file (e.g., EXCEL file)
Data inputting, then selects pel position to generate pel on figure.This module can realize the genus to electrical equipments all kinds of in electrical network
Property carry out edit typing.
Electrical equipment involved by the system of the present invention see table:
(3) service data maintenance module: obtain by data inputting interface or by the way of being imported by external file (EXCEL file)
Operation maintenance data.This module is for realizing the editor's typing to operation of power networks data.
The service data that the present invention relates to see table:
| Sequence number | Project |
| 1. | Transformer station's load |
| 2. | Transformator position separately |
| 3. | Reactor running status |
| 4. | The capacitor amount of putting into operation |
| 5. | Source of Gateway Meter power |
| 6. | Node voltage |
| 7. | Subscriber station load |
| 8. | Stand and lose with loss on transmission |
(4) graphics display control module: this module can make user that various graphical elements carry out multiple display control operation.Figure
Display control module includes: the smooth roaming of the stepless zooming of figure, figure, can browse simultaneously system panorama sketch and local administrative division map,
Various graphical elements, according to demand of specialty, are carried out tissue typing by the Layering manifestation of object, figure layer that flexibly definition is different, figure layer
Attribute structure and coding rule, user can as required multi-layer image be overlapped display.The definition of the dynamic observability of object.
User according to size and the setting of density parameter of scale, can define the most visible of graphical element (object) on each figure layer
Property.The independence display of single object controls.The display styles of object is arranged, including color, shape, line style, size, spacer-frame
Formula etc..The attribute that object is different is represented, such as the different electric pressures etc. of object with different display styles.
(5) editor module of grid graph: this module provides graphic plotting, edit tool, supports user's volume to graph data
Collect and update.The increase mode of Drawing Object a little, straight line, broken line, rectangle, ellipse, also include the deletion of Drawing Object, shifting
Move, amplify, reduce, the increase of Drawing Object node, delete and move, the increase of text object, delete, mobile.
(6) graphical symbol library module: this module provides a set of symbolic library meeting power industry standard and line style storehouse, to ensure into
The uniformity of figure and standardization.System provides the drawing instrument that can customize, and user can add self-defined according to concrete demand
Graphical symbol, or existing graphical symbol is edited.
(7) images outputting module: this module will provide the parameter configuration literary composition of the outut devices such as the normal printer of various conventional producers
Part and page setup interface carry out the output of figure, and printing, figure full width including graphical window print.
(8) enquiry module on figure: this module can inquire about the technical parameter of capital equipment on electric network wiring scheme, as device name,
The information such as actual load and permissible load.Carry out fuzzy query according to object properties, position on map simultaneously.Also include figure pair
The click attribute query of elephant.
(9) line loss analyzing result labeling module: on the basis of electric network wiring scheme, divides according to the line loss that line loss analysis system obtains
Analysis data, by line loss information labeling on electrical network figure.
User utilizes figure drafting module in electric network wiring scheme station to be the electric network wiring scheme that grid graph manufacturing system provides each electric pressure,
Further according to actual electric network data, utilize electrical equipment attribute data editor module editor's electrical equipment, recycle service data
Maintenance module by data inputting or is added operation maintenance data by external file lead-in mode in grid graph.Need according to user
Want, utilize graphics display control module that various graphical elements carry out multiple display and control operation, utilize the editor module of grid graph
Make user to the editor of graph data and renewal, when needs draw standard symbol and line style, utilize graphical symbol library module to provide
Symbolic library and line style storehouse carry out unifying to draw, after completing grid graph and drawing, it is possible to use images outputting module prints,
And utilize on figure the parameter information of each equipment on enquiry module real-time query grid graph.Complete grid graph to draw, it is possible to use
This grid graph carries out line loss analyzing, and the result of line loss analyzing can utilize line loss analyzing result labeling module to show at grid graph
On, it is achieved line loss information visuallization.
The present invention uses above-mentioned graphic visualization systems, can reach electrical network primary system and component parameters storehouse realizes the most graphical pipe
Reason, can carry out equipment graphics edition, equipment query and figure location, the management of electrical equipment Topology generation, symbolic library, tide
Flow graph generation, graphics version management etc..Achieve the mathematics library of electric power networks, component parameters can be carried out visualized management,
Thus it is easier to ensure that concordance and the correctness of parameter, the probability made mistakes during decreasing line loss calculation, also makes simultaneously
Parameter modification is prone to carry out.
On the basis of the grid graph that above-mentioned graphic visualization systems generates, line loss analysis system is used to carry out line loss analyzing.Line loss
Analysis system mainly realizes the calculating of the theory wire loss of electrical network, and can show detailed Load flow calculation intermediate object program, to result of calculation
There are examination & verification and debugging functions；Line losses management function under the prediction method of operation, reactive Voltage Optimum function, line can be provided simultaneously
Road is cut to change and is optimized computing function and to temperature, load and power factor Adjustable calculation function with transformator switching.
Line loss analysis system includes with lower part:
(1) line loss theoretical calculation model module: use power flow algorithm to carry out line loss theoretical calculation.Load flow calculation is that power system divides
Most important calculating in analysis, is also the basis of Electric network energy loss theoretical calculation simultaneously.Theoretically, the line of each electric pressure of power system
Damage can use trend method to solve.The calculation process of trend method is as in figure 2 it is shown, calculation procedure is as follows: a. graphics edition is formed
Electrical network primary system topological diagram, and fill in parameter, and topology information and component parameters are input in data base；B. typing electrical network fortune
Row data；C. from data base, read topological structure of electric information, component parameters and service data；D. calculate system load flow, sentence
Break and whether restrain, if convergence carries out e step, if not restraining, analyzing and not restraining reason, carry out error correction, repeat d step；
E. grid line loss is calculated；F. line loss result write into Databasce；G. output useful information document.
This problem generally existing and don't the most thoroughly solving is not restrained, targetedly to tide in the present invention in order to solve trend
Flow not convergence problem to be processed, including, if the topological structure of electrical network being analyzed wrong by form a. of text output
Warning is then provided；B. the property parameters of various elements is checked, be found to have abnormal then proposition and report to the police (non-the most reliable)；
C. service data is checked, be found to have abnormal then proposition and report to the police (non-the most reliable)；D. in Load flow calculation iterative process
Useful information, the most often walk the node voltage amplitude of iteration, active reactive degree of balance etc. intermediate variable carry out output for debugging people
Member's reference.Point out, by these, the reason that can comparatively fast find trend not restrain, thus be greatly improved the efficiency of Controlling line loss personnel.
It addition, in Load flow calculation, be integrated with multiple Load Flow Solution iterative algorithm, such as Gaussian processes, Newton-Raphson approach, improvement
Newton-Raphson approach and algorithm quicksort.Accordingly, it is capable to topology information and component parameters structure according to network automatically select tide
Stream iterative algorithm, or it is combined iteration, so that the convergence of trend and calculating speed obtain optimization and processes, such as
It is suitable for using algorithm quicksort to the calculating of supergrid, and at the electrical network containing low voltage voltage grade, the most preferably uses newton-draw
Fu Xunfa, it is also possible to solve etc. with algorithm quicksort and Newton-Raphson approach combined iteration.
Thus, the present invention possesses advantages below: can realize each electric pressure electric network composition topology and the trend meter of more than 5000 nodes
Calculate result to restrain.Each element loss model that line loss theoretical calculation uses, is modeled according to national standard.Load flow calculation uses
Multiple iterative algorithm, program can automatically select computation model etc. according to electric network composition.There is multiple output result, various elements are joined
Number has certain analysis and discriminating function, can report to the police the abnormal data produced.User misoperation is produced the electrical network of mistake
Topological connection relation, program can provide correct link information；If calculation of tidal current does not restrains, it is many that program is provided to user
Plant debugging guidance information, for computing staff's Modulated Reference.
Alternatively it is also possible to use other theoretical line loss caluclation methods, as line loss 110kV above electrical network uses trend method,
Electric pressure electrical network less than 110kV then uses rms current method or average current model.
(2) examination & verification of result of calculation and correcting module.
(3) line losses management and reactive Voltage Optimum module: can realize the trend under the various method of operation and line loss calculation, calculates people
Member can arbitrarily plan electrical network, topological structure, increases and decreases power plant, transformer station, transmission line of electricity, switched capacitor reactor etc..Energy
The sharing of load of transformator is provided rational reference value, carries out certain idle work optimization to reduce the line loss of the whole network simultaneously.These merits
Can be mainly by exporting different informations to user, user is according to information optimization and adjusts idle allocative decision thus reality
Existing idle optimization.
(4) circuit is cut to change and is optimized computing module with transformator switching: can realize circuit switching and the calculating of any switching of transformator.
As long as the state of switch line way switch, can arbitrarily adjust the connection of circuit, and the conveying of transfer electrical power and distribution.Can be arbitrarily
Load adjustment power factor calculates, and then obtains line loss data under different line status, exports result of calculation, for further
Analysis collects offer basis.
In terms of network optimization calculating, present invention employs substantial amounts of Sparse technology and node numbering optimization technology.Wherein, node is compiled
Number use the Tinney-2 node numbering method improved, the row of employing zero storage during forming bus admittance matrix and Iterative Matrices
Technology, saves substantial amounts of memory space, reduces the system demand to internal memory, and the row of employing zero calculates in iterative computation, pole
The earth improves Load flow calculation speed.
Using above-mentioned line loss analysis system to carry out grid line loss analysis, the grid line loss of the present invention analyzes method, as it is shown on figure 3, bag
Include following six step:
The first step, uses trend method to calculate the network loss under power transmission network different running method, calculates the network loss under different running method,
The method of operation that when can determine that, etching system is actual, it is also possible to be imaginary system operation mode under research state: (1) is according to disconnected
Road device, the different conditions of disconnecting switch calculate system network loss under different running method；(2) according to the difference of load tap changer
System voltage under the different conditions of position and electric capacity/Reactor banks (or other electrical equipments) and network loss.Consider electromotor, bear
It is contemplated that power shortage or power surplus distribution in other adjustable unit when lotus is cut-off or regulates；If after network off-the-line can be calculated
The trend of dry separate network, when not havinging the situation about can not calculate that crashes after network parallel off；Change convergence precision and iteration limit time
Etc. carrying out Load flow calculation, parameter arrive the convergence precision specified or calculation times arrive the iteration limit time specified after stop trend meter
Calculate, and provide prompting, do not have system and can not solve and the situation of Infinite Cyclic；Extra high voltage network can be carried out and switch one end
Tripping, the Load flow calculation in the case of the other end is charged, circuit both end voltage can be given and charge idle；Can each class component of classified counting
Loss, and respectively sequencing display；Can individually calculate the loss under specifying the method for operation of each element.Calculation of tidal current can be at electricity
Carrying out simple and clear display on net figure, not charged element can show with variable color, to show difference；The tide under free position can be preserved
Stream calculation result；The power flow solutions that may bring up preservation is shown on figure；Off-limit alarm can be carried out, according to calculation of tidal current identification
Out-of-limit equipment, and more limit information can be shown on figure.
Second step, stores Load flow calculation intermediate object program, including the calculation of tidal current under free position.Divide from electric pressure and include
The line loss calculation result of each electric pressure.Or base area Division is analyzed, as a example by North China, including Beijing-Tianjin-Tangshan Grid,
Southern Hebei Network, Shanxi Power Network, Shandong Power and Western Inner Mongolia electrical network, wherein Beijing-Tianjin-Tangshan Grid comprises Beijing, Tianjin and five, north, Ji
Area power grid (Tangshan, Qinhuangdao, Zhangjiakou, Chengde, Langfang) etc..All statistic analysis result can be with Excel file
Mode derive.
3rd step, audits result of calculation and revises.For because parameter is not complete or forbidden the calculating deviation caused, can manually repair
Change and preserve.
4th step, it was predicted that the line losses management under the method for operation and reactive Voltage Optimum.System operation mode or certain research with planning
The imaginary method of operation under state adjusts network graphic and parameter, and calculates the system losses under this method of operation, for later system
Run and reference frame is provided.Regulation load tap changer position, switching capacitance/Reactor banks, according to different load tap changers
Position and electric capacity, Reactor banks state, calculate system voltage and network loss, preserves result to compare.
5th step, circuit is cut to change and is calculated and to load and power factor Adjustable calculation with transformator switching optimization.Operating breaker and every
From switch on-off circuit, operating breaker and disconnecting switch switching transformator, calculate the network loss under different running method, export result
Contrast.Load adjustment size, Load adjustment power factor, the network loss after calculated load adjustment, output result contrasts,
Offer basis is collected for further analyzing.
6th step, line loss calculation result statistical analysis collects.All statistic analysis result can derive in the way of Excel file.
The graphic visualization systems using the present invention carries out the flow process of line loss analyzing: use described graphic visualization systems to complete electrical network figure
Shape is drawn, and the electric network data that graphic visualization systems generates is stored in data base；According to grid graph and obtain by data base other
Data, use line loss analysis system to carry out line loss analyzing；Line loss analyzing result labeling module is utilized to be shown by the result data of line loss analyzing
Show on grid graph, thus generate tidal current chart, it is achieved the visualization of grid line loss.
Last it is noted that above-described each embodiment is merely to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to previous embodiment, it will be understood by those within the art that: it is the most permissible
Technical scheme described in previous embodiment is modified, or wherein part or all of technical characteristic is carried out equivalent；And
These amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. the graphic visualization systems analyzed for electric network swim, it includes with lower module:
Figure drafting module in electric network wiring scheme station, for providing the electric network wiring scheme of each electric pressure；
Electrical equipment attribute data editor module, for providing the attributes edit of electrical equipment；
Service data maintenance module, for realizing the editor's typing to operation of power networks data；
Graphics display control module, makes user that various graphical elements to carry out multiple display and controls operation；
The editor module of grid graph, this module provides graphic plotting, edit tool, support user to the editor of graph data and
Update.
2. graphic visualization systems as claimed in claim 1, it is characterised in that: this system also includes graphical symbol library module,
This module provides symbolic library and the line style storehouse meeting power industry standard, also provides for the drawing instrument that can customize, can be according to tool
The demand of body, adds self-defining graphical symbol, or edits existing graphical symbol.
3. graphic visualization systems as claimed in claim 1, it is characterised in that: this system also includes images outputting module,
The parameter configuration files and page setup interface that there is provided outut device are carried out the output of figure by this module.
4. graphic visualization systems as claimed in claim 1, it is characterised in that: this system also includes enquiry module on figure,
This module can inquire about the technical parameter of capital equipment on electric network wiring scheme, carries out fuzzy query according to object properties, simultaneously on ground
Position on figure.
5. graphic visualization systems as claimed in claim 1, it is characterised in that: this system also includes line loss analyzing result mark
Injection molding block: on the basis of electric network wiring scheme, the data obtained according to line loss analysis system, by line loss information labeling at electrical network figure
On.
6. graphic visualization systems as claimed in claim 1, it is characterised in that: electrical equipment attribute data editor module
The editor of data has two ways: one is first to add a pel on figure, then clicks on pel in data inputting interface
Logging data；One be by data inputting interface or by external file lead-in mode by data inputting, then on figure select
Select pel position and generate pel.
7. graphic visualization systems as claimed in claim 1, it is characterised in that: graphics display control module includes: figure
Stepless zooming, figure smooth roaming, can browse simultaneously system panorama sketch and local administrative division map, the Layering manifestation of object, root
According to demand of specialty, various graphical elements are carried out tissue typing, define different figure layer, the attribute structure of figure layer and numbering rule
Then, as required multi-layer image is overlapped display.
8. graphic visualization systems as claimed in claim 1, it is characterised in that: the editor module of grid graph is to figure pair
The increase mode of elephant a little, straight line, broken line, rectangle, ellipse, also include the deletion of Drawing Object, movement, amplify, reduce,
The increase of Drawing Object node, delete and move, the increase of text object, delete, mobile, system provides a set of and meets electric power
The symbolic library of industry standard and line style storehouse, to ensure into uniformity and the standardization of figure.
9. graphic visualization systems as claimed in claim 4, it is characterised in that: the content bag that on figure, enquiry module can be inquired about
Include: device name, actual load and permissible load.
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| CN111145038A (en) * | 2019-12-02 | 2020-05-12 | 积成电子股份有限公司 | Power grid regulation and control big data interactive analysis method based on visual data flow graph |
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| CN111416436B (en) * | 2020-02-24 | 2022-09-02 | 国网浙江省电力有限公司湖州供电公司 | Distribution network operation graph monitoring system |
| CN116796489A (en) * | 2022-12-02 | 2023-09-22 | 国网江苏省电力有限公司南通供电分公司 | Distribution network line loss calculation and visualization method and system based on graph calculation |
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