CN103679344B - Power grid partition scheduling device and partitioning method and system thereof - Google Patents
Power grid partition scheduling device and partitioning method and system thereof Download PDFInfo
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Abstract
The invention provides a power grid partition scheduling device which comprises a data output module, a sensitivity calculating module, N-1 safety analyzing modules, a partition dyeing module an a processing module. Accurate and real-time data acquisition of the data output module can guarantee real-time monitoring of power grid operation, dependence on the inherent the topology graph of a power grid can be avoided, and high adaptability can be achieved; two independent modules are used to perform power grid potential partitioning and N-1 safety analysis, so that data processing speed is guaranteed; faults in power grid operation scheduling can be responded to in real time, and accurate scheduling measures can be taken on the faults during power grid real-time scheduling operation.
Description
Technical field
The present invention relates to electric power network technical field, more particularly to sub-area division dispatching device and its partition method be
System.
Background technology
The scale and complexity of modern power systems is continuously increased.It is steady in order to ensure the safety that complicated electric power system is run
Determine and dispatcher can in time, accurately take control measure after accident occurs, it is to avoid the generation of chain accident, in electric power
It is necessary to carry out subregion scheduling in system call operation to electrical network.The main purpose of sub-area division scheduling is by the way that electrical network is drawn
It is divided into zones of different, dispatcher is freed from mass data, intuitively, efficiently knows current electric grid running statu,
Guarantee the safety and stability of operation of power networks.
The research of existing sub-area division dispatching technique is focused primarily upon and is divided in electrical network by electrical distance between analysis node
Secondary network, realizes the optimal control to line voltage, or aids in pre-establishing and by way of storage time list adjusting
Degree personnel carry out decision-making with control.But existing sub-area division dispatching device is typically all what is run in advance under off-line state,
Rely on the intrinsic topological structure of electrical network, and for list of thing outside accident lack timely response mechanism, to electric network swim
Real-time change adaptability is poor, thus existing sub-area division dispatching device cannot in time to list of thing outside accident ring in time
Should, its real-time change adaptability is poor, it is impossible to accurately take Operation Measures in electrical network Real-Time Scheduling emerged in operation failure.
The content of the invention
Based on this, it is necessary to cannot be in electrical network Real-Time Scheduling emerged in operation failure for general sub-area division dispatching device
When accurately take the problem of Operation Measures, there is provided one kind can real-time response electric network fault, go out in the operation of electrical network Real-Time Scheduling
Operation Measures sub-area division dispatching device and its partition method and system are accurately taken during existing failure.
A kind of sub-area division dispatching device, including data outputting module, Calculation of Sensitivity module, N-1 safety analysis modules,
Subregion staining modules and processing module；
The data outputting module obtains electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation, sends electrical network and works as
Front network structure sends electrical network Real-time Power Flow result of calculation to the N-1 safety analyses module to the Calculation of Sensitivity module,
The Calculation of Sensitivity module generates work(of each circuit relative to each node in electrical network according to the electrical network Exist Network Structure for receiving
Rate transfer factor matrix, according to the power transfer factor matrix, realizes the division in potential region, and by the division in potential region
As a result the subregion staining modules are sent to, the N-1 safety analyses module calculates knot according to the electrical network Real-time Power Flow for receiving
Really, N-1 safety analyses are carried out to electrical network, N-1 safety analysis results are obtained, is picked out in N-1 safety analyses and be there is safety problem
Circuit, and send the N-1 safety analyses result to the subregion staining modules, the subregion staining modules are according to receiving
N-1 safety analyses result and potential region division result, potential region is dyeed, realize the division of Grid,
The division result of Grid is sent to the processing module, the division result of the processing module reception Grid,
And subregion scheduling is carried out to electrical network according to the division result of the Grid.
A kind of sub-area division dispatching method, it is characterised in that including step：
Obtain electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation；
According to the electrical network Exist Network Structure, power transfer factor square of each circuit relative to each node in electrical network is generated
Battle array, according to the power transfer factor matrix, obtains the division result in potential region；
According to the electrical network Real-time Power Flow result of calculation, N-1 safety analyses are carried out to electrical network, obtain N-1 safety analyses knot
Really；
Potential region is dyeed according to the division result and the N-1 safety analyses result in the potential region, is obtained
The division result of power taking web area；
Subregion scheduling is carried out to electrical network according to the division result of the Grid.
A kind of sub-area division dispatches system, it is characterised in that include：
Transport module, for obtaining electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation；
Potential region division module, for according to the electrical network Exist Network Structure, generate in electrical network each circuit relative to
The power transfer factor matrix of each node, according to the power transfer factor matrix, obtains the division result in potential region；
Safety analysis module, for according to the electrical network Real-time Power Flow result of calculation, to electrical network N-1 safety analyses being carried out,
Obtain N-1 safety analysis results；
As a result acquisition module, for according to the division result in the potential region and the N-1 safety analyses result to latent
Dyeed in region, obtained the division result of Grid；
Performing module, for carrying out subregion scheduling to electrical network according to the division result of the Grid.
Sub-area division dispatching device of the present invention, data outputting module obtain accurately, in real time the network structure of current electric grid and
Current Real-time Power Flow result, the potential subregion of Calculation of Sensitivity Module Division electrical network, N-1 safety analyses module carry out N-1 to electrical network
Safety analysis, subregion staining modules according to the N-1 safety analyses result for receiving and potential region division result, to potential area
Domain is dyeed, and realizes the division of Grid, and when the operation of electrical network Real-Time Scheduling is broken down, processing module is according to the electricity
The division result of web area carries out subregion scheduling to electrical network.Sub-area division dispatching device of the present invention has preferable of overall importance, data
Output module obtains data and can ensure that the monitor in real time to operation of power networks accurately, in real time, the topological diagram intrinsic without the need for relying on electrical network,
With stronger adaptability, it is respectively adopted that two separate modulars carry out the potential subregion of electrical network and N-1 safety analyses ensure that number
According to process speed, can real-time response operation of power networks scheduling in failure, in electrical network Real-Time Scheduling emerged in operation failure
Accurately take Operation Measures.
Description of the drawings
Fig. 1 is the structural representation of sub-area division dispatching device one embodiment of the present invention；
Fig. 2 is the schematic flow sheet of sub-area division dispatching method one embodiment of the present invention；
Fig. 3 is the schematic flow sheet of second embodiment of sub-area division dispatching method of the present invention；
Fig. 4 is the structural representation that sub-area division of the present invention dispatches system one embodiment；
Fig. 5 is the structural representation that sub-area division of the present invention dispatches second embodiment of system；
Fig. 6 is the potential block plan of electrical network that calculating is simulated in specific embodiment 1；
Fig. 7 is the sub-area division figure that calculating is simulated in specific embodiment 1；
Fig. 8 is the sub-area division figure that calculating is simulated in specific embodiment 2；
Fig. 9 is the sub-area division figure that calculating is simulated in specific embodiment 3.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below according to drawings and Examples
The present invention is further elaborated.It should be appreciated that described herein be embodied as only to explain the present invention, not
Limit the present invention.
As shown in figure 1, a kind of sub-area division dispatching device, including data outputting module 100, Calculation of Sensitivity module 200,
N-1 safety analyses module 300, subregion staining modules 400 and processing module 500；
The data outputting module 100 obtains electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation, sends electricity
Net Exist Network Structure sends electrical network Real-time Power Flow result of calculation and divides safely to the N-1 to the Calculation of Sensitivity module 200
Analysis module 300, the Calculation of Sensitivity module 200 generates each circuit phase in electrical network according to the electrical network Exist Network Structure for receiving
For the power transfer factor matrix of each node, according to the power transfer factor matrix, the division in potential region is realized, and will
The division result in potential region is sent to the subregion staining modules 400, and the N-1 safety analyses module 300 is according to receiving
Electrical network Real-time Power Flow result of calculation, carry out N-1 safety analyses to electrical network, obtain N-1 safety analysis results, pick out N-1 peaces
There is the circuit of safety problem in complete analysis, and send the N-1 safety analyses result to the subregion staining modules 400, institute
Subregion staining modules 400 are stated according to the N-1 safety analyses result for receiving and potential region division result, potential region is entered
Row dyeing, realizes the division of Grid, and the processing module 500 receives the division result of the Grid, and according to institute
State the division result of Grid carries out subregion scheduling to electrical network.
Electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation can be obtained directly by grid dispatching center, non-
It is necessary, in order to further coordinate sub-area division dispatching device in each composite module work, dsp processor pair can be selected
Data outputting module, Calculation of Sensitivity module, N-1 safety analyses module and subregion staining modules carry out management and control.In order to further
Sub-area division dispatching device of the present invention is explained, sub-area division scheduling of the present invention will be described in detail using a specific embodiment below
The operation principle of device and its beneficial effect brought.
Data transmission module is responsible for obtaining the topological structure of electric information and reality of needs from control centre or other data sources
When power flow solutions, and auto-partition result of calculation is returned to into control centre's EMS.
Calculation of Sensitivity module is responsible for according to topological structure of electric, calculates each line power transfer factor (PTDF), according to
Power transfer factor realizes the division to the potential region of electrical network, and the physical significance of element S (i, j) is in power transfer factor matrix
Due to node i injecting power unit one change caused by circuit j change of power flow, the sensitivity matrix can be by pushing away as follows
Lead and be calculated：
Standard direct current Load flow calculation equation node phase angle change is linear with active change：
If node i injecting power increases by 1 perunit value being compensated by balance nodes, power transfer factor matrix can be calculated
Arrive：
Element S (i, j) in power transfer factor matrix reflects the degree of correlation of node i and circuit j.If S (i, j) compared with
Show that node i is strong correlation relation with circuit j greatly, the minor variations of node i injection trend can reflect the Line Flow of circuit j
On.Therefore the circuit (such as larger than a certain threshold value) larger for power transfer factor, these circuits are relatively important, general position
On system core section, emphasis is answered to monitor these important line trends, these circuits are by the boundary as different potential regions
Line, according to the distribution of these important sections, by system some potential regions is divided into.
N-1 safety analyses module is responsible for carrying out the whole network N-1 point when topological structure change occurs in electrical network or breaks down
Analysis, the larger circuit of the circuit or power flow changing for picking out when topological structure of electric change or going wrong after breaking down, and
As the circuit for answering emphasis to monitor, for sub-area division scheduling important references are provided.
Subregion staining modules are responsible for combining the result of calculation of Calculation of Sensitivity module and N-1 safety analysis modules, by base
The coloring algorithm of image Segmentation Technology is dyeed to each potential region in graph theory, final to realize drawing Grid
Point.
When topological structure of electric occurs than larger change or breaks down, dispatcher only needs monitoring with control not
The perception and control of the running status to electrical network are capable of achieving with interregional interconnection trend.Ensureing interregional interconnection trend
On the basis of being brought under control, the shadow that the adjustment to a certain intra-zone unit or load will not be larger to other region producing ratios
Ring.
Sub-area division dispatching device of the present invention, data outputting module obtain accurately, in real time the network structure of current electric grid and
Current Real-time Power Flow result, the potential subregion of Calculation of Sensitivity Module Division electrical network, N-1 safety analyses module carry out N-1 to electrical network
Safety analysis, subregion staining modules according to the N-1 safety analyses result for receiving and potential region division result, to potential area
Domain is dyeed, and realizes the division of Grid, and when the operation of electrical network Real-Time Scheduling is broken down, processing module is according to the electricity
The division result of web area carries out subregion scheduling to electrical network.Sub-area division dispatching device of the present invention has preferable of overall importance, data
Output module obtains data and can ensure that the monitor in real time to operation of power networks accurately, in real time, the topological diagram intrinsic without the need for relying on electrical network,
With stronger adaptability, it is respectively adopted that two separate modulars carry out the potential subregion of electrical network and N-1 safety analyses ensure that number
According to process speed, can real-time response operation of power networks scheduling in failure, in electrical network Real-Time Scheduling emerged in operation failure
Accurately take Operation Measures.
As shown in Fig. 2 a kind of sub-area division dispatching method, including step：
S200：Obtain electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation；
S400：According to the electrical network Exist Network Structure, generate each circuit in electrical network and shift relative to the power of each node
Factor matrix, according to the power transfer factor matrix, obtains the division result in potential region；
S600：According to the electrical network Real-time Power Flow result of calculation, N-1 safety analyses are carried out to electrical network, obtain N-1 and divide safely
Analysis result；
S800：Potential region is contaminated according to the division result and the N-1 safety analyses result in the potential region
Color, obtains the division result of Grid；
S900：Subregion scheduling is carried out to electrical network according to the division result of the Grid.
Sub-area division dispatching method of the present invention, data outputting module obtain accurately, in real time the network structure of current electric grid and
Current Real-time Power Flow result, the potential subregion of Calculation of Sensitivity Module Division electrical network, N-1 safety analyses module carry out N-1 to electrical network
Safety analysis, subregion staining modules according to the N-1 safety analyses result for receiving and potential region division result, to potential area
Domain is dyeed, and realizes the division of Grid, and when the operation of electrical network Real-Time Scheduling is broken down, processing module is according to the electricity
The division result of web area carries out subregion scheduling to electrical network.Sub-area division dispatching method of the present invention has preferable of overall importance, data
Output module obtains data and can ensure that the monitor in real time to operation of power networks accurately, in real time, the topological diagram intrinsic without the need for relying on electrical network,
With stronger adaptability, individually simultaneously the potential subregion of electrical network is carried out to electrical network and N-1 safety analyses ensure that data
The speed of process, failure that can be in real-time response operation of power networks scheduling is accurate in electrical network Real-Time Scheduling emerged in operation failure
Really take Operation Measures.
As shown in figure 3, the S400 specifically includes step：
S420：According to the electrical network Exist Network Structure, generate each circuit in electrical network and shift relative to the power of each node
Factor matrix；
S440：Current electric grid management and running data are obtained, current electric grid dispatching requirement is analyzed, is transported according to current electric grid scheduling
Row demand, arranges different division threshold values；
S460：According to the power transfer factor matrix and the division threshold value, respectively save according to same potential intra-zone
Point degree of correlation, divides potential region, obtains potential region division result.
In the present embodiment, on the basis of obtaining each node to the power transfer factor matrix of each circuit, according to scheduling fortune
The needs that row is required, set different threshold values, and electrical network is divided into into some potential regions, mark off the potential region come and should ensure that：
The each node degree of correlation of same potential intra-zone is higher, and potential interregional interconnection is circuit in higher sensitivity.
As shown in figure 3, wherein in one embodiment, also having step after the S400：
S500：According to the N-1 safety analyses result, the circuit that there is safety problem in N-1 safety analyses is picked out, and
The result of the circuit that there is safety problem in the N-1 safety analyses is stored in corresponding matrix.
Electrical network carries out N-1 safety analyses, pick out answer emphasis monitor trend circuit, need consider circuit include but not
It is limited to after failure occurs the circuit of overload problem, N-1 safety analyses after failure generation can produce the circuit of overload problem, therefore
If the circuit that All other routes can be caused overload problem occur is cut-off in N-1 safety analyses after barrier occurs.By in the N-1 safety analyses
The result that there is the circuit of safety problem is stored in corresponding matrix to make full use of historical data in operation from now on,
Quickly, effective acquisition needs data and information.
Wherein in one embodiment, the division result and N-1 safety analyses knot according to the potential region
Fruit is dyeed to potential region, and the division result for obtaining Grid is specially：
According to the division result and the N-1 safety analyses result in the potential region, using based on the image in graph theory
The coloring algorithm of segmentation is dyeed to potential region, obtains the division result of Grid.
As shown in figure 3, wherein in one embodiment, the S800 specifically includes step：
S820：Distinguished in potential region by the potential subregion of N-1 fault impacts and by N- according to N-1 safety analyses result
The potential subregion of 1 fault impact；
S840：Potential subregion by N-1 fault impacts is dyeed, its standards for dyeing is：If adjacent potential subregion it
Between interconnection there are problems that N-1, then by adjacent potential subregion dye different colours, if there is N-1 inside potential subregion asking
Topic, then be reclassified as some new potential subregions, to ensure new potential point by the potential subregion in units of each node
The adjacent potential subregion that there is interconnection N-1 failures in area is not homochromy；
S860：The potential subregion not by N-1 fault impacts is contaminated according to priority according to power transfer factor matrix
Color, if the contact line sensitivity between adjacent potential subregion is low, by the adjacent potential subregion homochromy priority height is contaminated,
If the contact line sensitivity between adjacent potential subregion is high, the adjacent potential subregion is contaminated into homochromy priority low；
S880：According to potential region coloration result, the division result of Grid is obtained.
As procedure described above dyeing is carried out to potential subregion to be colored up to each potential subregion, according to adjacent
The color in potential region it is identical or different, be achieved that the division to Grid.When topological structure of electric occurs than larger
Change or when breaking down, dispatcher only needs to monitor and control interconnection trend between zones of different to be capable of achieving to electrical network
Running status perception with control.On the basis of ensureing that interregional interconnection trend is brought under control, to a certain intra-zone
The adjustment of unit or load will not be to other region producing ratio large effects.
As shown in figure 4, a kind of sub-area division dispatches system, including：
Transport module 410, for obtaining electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation；
Potential region division module 420, it is relative for according to the electrical network Exist Network Structure, generating each circuit in electrical network
In the power transfer factor matrix of each node, according to the power transfer factor matrix, the division result in potential region is obtained；
Safety analysis module 430, divides safely for according to the electrical network Real-time Power Flow result of calculation, carrying out N-1 to electrical network
Analysis, obtains N-1 safety analysis results；
As a result acquisition module 440, for according to the division result in the potential region and the N-1 safety analyses result pair
Potential region is dyeed, and obtains the division result of Grid；
Performing module 450, for carrying out subregion scheduling to electrical network according to the division result of the Grid.
Sub-area division of the present invention dispatches system, and the network structure that transport module 410 obtains in real time current electric grid is real with current
When power flow solutions, potential region division module 420 divides the potential subregion of electrical network, safety analysis according to the network structure of current electric grid
Module 430 is calculated according to electrical network Real-time Power Flow to be calculated result and carries out N-1 safety analyses to electrical network, and as a result acquisition module 440 is according to connecing
The N-1 safety analyses result for receiving and potential region division result, dye to potential region, realize drawing for Grid
Point, when the operation of electrical network Real-Time Scheduling is broken down, performing module 450 is entered according to the division result of the Grid to electrical network
Row subregion is dispatched.Sub-area division scheduling system of the present invention has preferably of overall importance, and transport module 410 accurately, in real time obtains data
The monitor in real time to operation of power networks is can ensure that, the intrinsic topological diagram of electrical network is independent of, with stronger adaptability, is respectively adopted
The potential subregion of electrical network is carried out to electrical network for potential region division module 420 and safety analysis module 430 and N-1 safety analyses ensure that
The speed of data processing, can real-time response operation of power networks scheduling in failure, in electrical network Real-Time Scheduling emerged in operation failure
When accurately take Operation Measures.
As shown in figure 5, wherein in one embodiment, the potential division module 420 of institute is specifically included：
Power transfer factor signal generating unit 422, for according to the electrical network Exist Network Structure, generating each circuit in electrical network
Relative to the power transfer factor matrix of each node；
Threshold setting unit 424, for obtaining current electric grid management and running data, analyzes current electric grid dispatching requirement, root
According to current electric grid management and running demand, different division threshold values are set；
Potential division unit 426, for according to the power transfer factor matrix and the division threshold value, according to same latent
In each node degree of correlation of intra-zone, potential region is divided, obtain potential region division result.
As shown in figure 5, wherein in one embodiment, the sub-area division scheduling system also includes：
Memory module 460, exist in N-1 safety analyses safe asking for according to the N-1 safety analyses result, picking out
The circuit of topic, and the result of the circuit that there is safety problem in the N-1 safety analyses is stored in corresponding matrix.
As shown in figure 5, wherein in one embodiment, the result acquisition module 440 is specifically included：
Discrimination unit 442, for being distinguished in potential region by the potential of N-1 fault impacts according to N-1 safety analyses result
Subregion and by N-1 fault impacts potential subregion；
By the potential subregion dye unit 444 of N-1 fault impacts, for carrying out to the potential subregion by N-1 fault impacts
Dye, its standards for dyeing is：If the interconnection between adjacent potential subregion has N-1, by the adjacent potential subregion
Dye different colours, if there is N-1 inside potential subregion, the potential subregion are reclassified as in units of each node
Some new potential subregions, to ensure new potential subregion in exist interconnection N-1 failures adjacent potential subregion it is not homochromy；
By N-1 fault impacts potential subregion dye unit 446, for according to according to power transfer factor matrix to not
Dyeed according to priority by the potential subregion of N-1 fault impacts, if the contact line sensitivity between adjacent potential subregion
It is low, then the adjacent potential subregion is contaminated into homochromy priority height, if the contact line sensitivity between adjacent potential subregion is high,
Then the adjacent potential subregion is contaminated into homochromy priority low；
As a result obtain single 448 yuan, for according to potential region coloration result, obtaining the division result of Grid.
In order to be further explained in detail sub-area division dispatching device of the present invention and its partition method with system in actual electric network
Application in subregion, will be illustrated below using multiple specific embodiments.
Embodiment 1
As shown in fig. 6, network system to be assessed is divided into 39 potential subregions through Calculation of Sensitivity and analysis, work as electricity
When net is in growth running status, topological structure does not change and not there are problems that N-1, electrical network not subregion, each potential region without
Need to dye and border is shown in phantom.
As shown in fig. 7, when a certain in double back interconnection between 500kV transformer stations A and 500kV transformer stations B postbacks raw jump
During lock failure, topological structure of electric changes, and data transmission module now will calculate knot by topological structure of electric with Real-time Power Flow
Fruit conveys to N-1 safety analysis modules.N-1 safety analysis results show that now electrical network has N-1：If another connection between AB
Now also there is tripping fault in winding thread, interconnection will occur overload problem between potential region 26 and potential region 39.It is sectorized
After staining modules dyeing, electrical network is divided into two regions of I, II, and dispatcher needs the potential region 26 of key monitoring to be adjacent area
Domain interconnection trend ensures electrical network in safe operation state until interconnection trip accident is solved between AB.
Embodiment 2
As shown in figure 8, when certain important interconnection breaks down in network system to be assessed (500kV transformer stations E with
Between 500kV transformer stations F one of double back interconnection occur tripping fault), data transmission module will now topological structure of electric with
Real-time Power Flow result of calculation conveys to N-1 safety analysis modules.N-1 safety analyses result shows that electrical network now will appear from serious N-
1 problem：In addition to failure generation area, although some circuits are geographically not attached to fault zone, electrically distance is tight, such as
Interconnection trend causes trend to increase substantially due to failure between potential region 21 and potential region 22；If now power transformation
An other interconnection between EF of standing trips simultaneously, and electrical network will occur extensive chain accident.Subregion staining modules be computed by
Electrical network is divided into two regions of I, II, and dispatcher need to pay close attention to and control key sections trend between two regions, it is to avoid
The generation of chain accident, until failure is solved finishing.
Embodiment 3
As shown in figure 9, one of 2 500kV buses in 500kV transformer stations G in the potential subregion 7 of network system to be assessed
In inspecting state, stand interior by 3/2 martingale, cause the 500kV to become wherein a certain string network interconnecting circuit occurs tripping fault
Power station is split into 2 500kV nodes.Data transmission module now topological structure of electric will be conveyed to Real-time Power Flow result of calculation
N-1 safety analysis modules.N-1 safety analysis results show, when there is bus split in 500kV transformer stations, potential region 7 and phase
There is a strong possibility that out-of-limit situation occurs in property for interconnection trend between adjacent potential region 6,8, while potential region 5 and adjacent potential area
There is out-of-limit situation in interconnection trend also there is a strong possibility property between domain 6,11.Subregion staining modules are computed being divided in electrical network
Tri- regions of I, II, III, dispatcher need to pay close attention to and control key sections trend between each region, it is to avoid chain accident
Generation, until failure is solved finishing.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (7)
1. a kind of sub-area division dispatching device, it is characterised in that including data outputting module, Calculation of Sensitivity module, N-1 safety
Analysis module, subregion staining modules and processing module；
The data outputting module obtains electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation, sends the current net of electrical network
Network structure sends electrical network Real-time Power Flow result of calculation to the N-1 safety analyses module to the Calculation of Sensitivity module, described
Calculation of Sensitivity module generates each circuit in electrical network and turns relative to the power of each node according to the electrical network Exist Network Structure for receiving
Factor matrix is moved, according to the power transfer factor matrix, the division in potential region is realized, and by the division result in potential region
The subregion staining modules are sent to, the N-1 safety analyses module is right according to the electrical network Real-time Power Flow result of calculation for receiving
Electrical network carries out N-1 safety analyses, obtains N-1 safety analysis results, picks out the line that there is safety problem in N-1 safety analyses
Road, and the N-1 safety analyses result is sent to the subregion staining modules, the subregion staining modules are according to the N- for receiving
1 safety analysis result and potential region division result, dye to potential region, realize the division of Grid, send
To the processing module, the processing module receives the division result of the Grid, and root to the division result of Grid
Subregion scheduling is carried out to electrical network according to the division result of the Grid, the subregion staining modules are according to the N-1 peaces for receiving
Complete analysis result and potential region division result, dye to potential region, and the division for realizing Grid is specifically included：
Distinguished in potential region by the potential subregion of N-1 fault impacts and by N-1 fault impacts according to N-1 safety analyses result
Potential subregion, the potential subregion by N-1 fault impacts is dyeed, its standards for dyeing is：If between adjacent potential subregion
Interconnection there are problems that N-1, then by adjacent potential subregion dye different colours, if there is N-1 inside potential subregion,
Then the potential subregion is reclassified as into some new potential subregions in units of each node, to ensure new potential subregion in
The adjacent potential subregion that there is interconnection N-1 failures is not homochromy, according to power transfer factor matrix to not receiving N-1 fault impacts
Potential subregion is dyeed according to priority, if the contact line sensitivity between adjacent potential subregion is low, this is adjacent
Potential subregion contaminates homochromy priority height, if the contact line sensitivity between adjacent potential subregion is high, this is adjacent potential
The priority that subregion dye is homochromy is low, according to potential region coloration result, obtains the division result of Grid.
2. a kind of sub-area division dispatching method, it is characterised in that including step：
Obtain electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation；
According to the electrical network Exist Network Structure, the power transfer factor matrix of each circuit in electrical network relative to each node is generated,
According to the power transfer factor matrix, the division result in potential region is obtained；
According to the electrical network Real-time Power Flow result of calculation, N-1 safety analyses are carried out to electrical network, obtain N-1 safety analysis results；
Potential region is dyeed according to the division result and the N-1 safety analyses result in the potential region, obtains electricity
The division result of web area；
Subregion scheduling is carried out to electrical network according to the division result of the Grid；
The division result and the N-1 safety analyses result according to the potential region is dyeed to potential region, is obtained
The step of division result of power taking web area, includes：
Distinguished in potential region by the potential subregion of N-1 fault impacts and by N-1 fault impacts according to N-1 safety analyses result
Potential subregion；
Potential subregion by N-1 fault impacts is dyeed, its standards for dyeing is：If the interconnection between adjacent potential subregion
There are problems that N-1, then by the adjacent potential subregion dye different colours, if there is N-1 inside potential subregion, this is dived
Some new potential subregions are reclassified as in units of each node in subregion, to ensure new potential subregion in there is contact
The adjacent potential subregion of line N-1 failures is not homochromy；
The potential subregion not by N-1 fault impacts is dyeed according to priority according to power transfer factor matrix, if adjacent
Potential subregion between contact line sensitivity it is low, then the adjacent potential subregion is contaminated into homochromy priority high, if adjacent
Contact line sensitivity between potential subregion is high, then the adjacent potential subregion is contaminated into homochromy priority low；
According to potential region coloration result, the division result of Grid is obtained.
3. sub-area division dispatching method according to claim 2, it is characterised in that described according to the electrical network current network
Structure, generate electrical network in each circuit relative to each node power transfer factor matrix, according to the power transfer factor matrix,
The division result for obtaining potential region specifically includes step：
According to the electrical network Exist Network Structure, power transfer factor matrix of each circuit relative to each node in electrical network is generated；
Current electric grid management and running data are obtained, current electric grid dispatching requirement is analyzed, according to current electric grid management and running demand, if
Put different division threshold values；
According to the power transfer factor matrix and the division threshold value, according to each node correlation journey of same potential intra-zone
Degree, divides potential region, obtains potential region division result.
4. the sub-area division dispatching method according to Claims 2 or 3, it is characterised in that described real-time according to the electrical network
Calculation of tidal current, carries out N-1 safety analyses to electrical network, obtains N-1 safety analysis results, afterwards also step：
According to the N-1 safety analyses result, the circuit that there is safety problem in N-1 safety analyses is picked out, and by the N-1
The result that there is the circuit of safety problem in safety analysis is stored in corresponding matrix.
5. a kind of sub-area division dispatches system, it is characterised in that include：
Transport module, for obtaining electrical network Exist Network Structure and electrical network Real-time Power Flow result of calculation；
Potential region division module, for according to the electrical network Exist Network Structure, each circuit to be relative to each section in generation electrical network
The power transfer factor matrix of point, according to the power transfer factor matrix, obtains the division result in potential region；
Safety analysis module, for according to the electrical network Real-time Power Flow result of calculation, N-1 safety analyses being carried out to electrical network, obtains
N-1 safety analysis results；
As a result acquisition module, for according to the division result in the potential region and the N-1 safety analyses result to potential area
Domain is dyeed, and obtains the division result of Grid；
Performing module, for carrying out subregion scheduling to electrical network according to the division result of the Grid；
The result acquisition module is specifically included：
Discrimination unit, for according to the potential subregion that N-1 fault impacts are received in the potential region of N-1 safety analyses result differentiation and not
By the potential subregion of N-1 fault impacts；
By the potential subregion dye unit of N-1 fault impacts, for dyeing to the potential subregion by N-1 fault impacts, its
Standards for dyeing is：If the interconnection between adjacent potential subregion has N-1, by the adjacent different face of potential subregion dye
Color, if there is N-1 inside potential subregion, the potential subregion is reclassified as in units of each node some new
Potential subregion, to ensure new potential subregion in exist interconnection N-1 failures adjacent potential subregion it is not homochromy；
By N-1 fault impacts potential subregion dye unit, for according to power transfer factor matrix to not receive N-1 failure shadows
Loud potential subregion is dyeed according to priority, if the contact line sensitivity between adjacent potential subregion is low, by the phase
Adjacent potential subregion contaminates homochromy priority height, if the contact line sensitivity between adjacent potential subregion is high, this is adjacent
It is low that potential subregion contaminates homochromy priority；
As a result acquiring unit, for according to potential region coloration result, obtaining the division result of Grid.
6. sub-area division according to claim 5 dispatches system, it is characterised in that the potential division module of institute is specifically included：
Power transfer factor signal generating unit, for according to the electrical network Exist Network Structure, generate in electrical network each circuit relative to
The power transfer factor matrix of each node；
Threshold setting unit, for obtaining current electric grid management and running data, analyzes current electric grid dispatching requirement, according to current electricity
Net management and running demand, arranges different division threshold values；
Potential division unit, for according to the power transfer factor matrix and the division threshold value, according to same potential region
Internal each node degree of correlation, divides potential region, obtains potential region division result.
7. the sub-area division according to claim 5 or 6 dispatches system, it is characterised in that the sub-area division dispatches system
Also include：
Memory module, for according to the N-1 safety analyses result, picking out the line that there is safety problem in N-1 safety analyses
Road, and the result of the circuit that there is safety problem in the N-1 safety analyses is stored in corresponding matrix.
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