CN106849098B - The tidal current computing method of electric system - Google Patents
The tidal current computing method of electric system Download PDFInfo
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- H—ELECTRICITY
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Abstract
The present invention relates to the tidal current computing methods of electric system, comprising: carries out top-down global naming to the device object in electric system according to RDF specification and CIM standard；Unique identification of the global naming as device object, and being capable of hierarchical relationship between embodiment device object；The attribute information and link information of each station equipment are obtained according to the global naming, construct corresponding side formula network model；Determine the current network-in-dialing information of electric system according to described side formula network model, determine described known node in formula network model and it is known while, obtain the real-time status data of each known node and each known side；According to the real-time status data of each known node, the real-time status data and the network-in-dialing information on each known side, Load flow calculation is carried out to the electric system.The computation complexity of the present invention program is low, is conducive to improve the efficiency that electric power system tide calculates.
Description
Technical field
The present invention relates to technical field of power systems, more particularly to the tidal current computing method of electric system.
Background technique
It is a kind of basic electrical calculating for studying power system mesomeric state operating condition that electric power system tide, which calculates,.Its task
That the operating status of whole system is determined according to given service condition and network configuration, as on each bus voltage (amplitude and
Phase angle), the power distribution in network and power loss etc..Electric power system tide calculate the result is that analysis Operation of Electric Systems
The rational basis of power supply plan in state and planning.
Electric power system tide calculating at present is the topological model using transmission line of electricity as side, substation busbars for node, herein
Impedance matrix is constructed on the basis of topological model, then uses the algorithm of iteration convergence, and the result of calculating mainly includes node electricity
Pressure and power, line power etc..However the computer capacity of this electric power system tide calculation method is limited to, and the calculation amount of iteration
Very big, computational efficiency is lower.
Summary of the invention
Based on this, the embodiment of the invention provides the tidal current computing methods of electric system, can be improved the speed of Load flow calculation
Degree.
The tidal current computing method of present invention offer electric system, comprising:
According to the attribute information of each station equipment of global naming acquisition of information of the device object in electric system and connection
Information constructs corresponding side formula network model；The global naming information meets RDF specification and CIM standard, as equipment
The unique identification of object in the power system, and being capable of hierarchical relationship between embodiment device object；Described side formula network
In model, would not allow for the device flag for carrying out switching action is node, is side by the device flag for allowing to carry out switching action,
And a node connects at least one side, a line can only connect two nodes；
The current network-in-dialing information of electric system is determined according to described side formula network model, determines described side formula net
Known node and known side in network model, obtain the real-time status data of each known node and each known side；
According to the real-time status data of each known node, the real-time status data on each known side and network-in-dialing letter
Breath carries out Load flow calculation to the electric system.
The tidal current computing method of the electric system provided based on the above embodiment, according to the device object in electric system
The attribute information and link information of each station equipment of global naming acquisition of information, and then construct corresponding side formula network model；
In described side formula network model, would not allow for the device flag for carrying out switching action is node, will allow to carry out switching action
Device flag be side, and a node connects at least one side, and a line can only connect two nodes；Based on described side formula
Network model can be obtained the current network-in-dialing information of electric system, so can according to the real-time status data of each known node,
The real-time status data and the network-in-dialing information on each known side, carry out Load flow calculation to the electric system.The present invention
The computation complexity of scheme is low, is conducive to improve the efficiency that electric power system tide calculates.
Detailed description of the invention
Fig. 1 is the schematic flow chart of the tidal current computing method of the electric system of an embodiment；
Fig. 2 is the schematic diagram of the hierarchical relationship of device object in the electric system of an embodiment；
Fig. 3 is the schematic diagram of the point side formula network model of the electric system of an embodiment；
Fig. 4 is the schematic diagram of the point side formula network model of the electric system of another embodiment；
Fig. 5 is the schematic diagram of tree-shaped side formula network model model of an embodiment；
Fig. 6 is the schematic diagram of the Load flow calculation device of the electric system of an embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the schematic flow chart of the tidal current computing method of the electric system of an embodiment；As shown in Figure 1, this implementation
Example in electric system tidal current computing method comprising steps of
S11, according to the attribute information of each station equipment of global naming acquisition of information of the device object in electric system and
Link information constructs corresponding side formula network model；In described side formula network model, it would not allow for carrying out switching action
Device flag is node, is side by allowing to carry out the device flag of switching action, and a node connects at least one side, one
Side can only connect two nodes.Wherein, the global naming information be according to RDF specification and CIM standard to device object into
Capable top-down name information；Unique identification of the global naming information as device object, and can embody and set
Hierarchical relationship between standby object.
RDF specification is resource description framework (Resource Description Framework, abbreviation RDF), is one
For expressing the language of the information about the resource on WWW, for indicating that machine can be with simply dealt metadata；Its quilt
It is expressed as a kind of special XML (extensible markup language, Extensible Markup Language) document.
CIM standard, that is, common information model, Common Information Model), it is description power system component
Open standard describes the abstract model of all capital equipment objects in electric system.This standard provides a set of towards right
The model of the electric system public information of elephant, due to the abstractness of model, so that it is unrelated with language is realized.CIM includes class
(class), the relationship between class is for example inherited (inheritance), association (association) and is assembled
(aggregation) attribute and in class.Based on this, the physical equipment class such as breaker of electric system can be described
(Breaker), transformer (PowerTransformer), compensator (Compensator) etc., can also describe sub- control zone
(SubControlArea) etc. power system managements class, therefore, CIM can cover public in entire grid control centre application
Message part.In one embodiment, the hierarchical relationship withdrawn deposit in the global naming information of the device object in electric system can join
It examines shown in Fig. 2, can determine the link information of each equipment by the hierarchical relationship between device object.
Preferably, the category for whether allowing to carry out switching action in operation is included at least in the attribute information of each station equipment
Property information, can construct corresponding side formula network model in conjunction with the link information between each station equipment.It is not available for opening and closing
Equipment of operation such as main transformer, bus, route, short leg, busbar etc.；Or arranged by the hardwired a plurality of route of screw, line,
Lead etc.；It can carry out equipment such as breaker, isolation switch of switching action etc..
In one embodiment, all device definitions for being not available for switching action in operation are " point " equipment；One point
It can connect multiple summits.All device definitions that can carry out switching action in operation are " side " equipment；A line can only connect
Two points.Thus for the point side formula network model that can be constructed as shown in Fig. 3~Fig. 5, what G1, G2 and G3 were identified in Fig. 5 is power transformation
It stands.
S12 determines the current network-in-dialing information of electric system according to described side formula network model；Determine described side
Known node and known side in formula network model, obtain the real-time status data of each known node and each known side.
It can determine that the current network-in-dialing of electric system according to each edge equipment state (normally open or normally off)
Information.As shown in figure 5, the corresponding equipment in dotted line side is currently normally open, therefore the equipment corresponding with node 8 of node 5 is current
To connect off-state, the electric current of 5 equipment of node may not flow into 8 equipment of node；The corresponding equipment in solid line side is currently normally closed
State, therefore node 1, node 2, the corresponding equipment of node 3 are connected to 4 equipment of node respectively, node 1, node 2,3 equipment of node
Electric current will be pooled to 4 equipment of node, 4 equipment of node is connected to 6 equipment of node again, therefore the electric current of 4 equipment of node will be into one
Step is flowed into 6 equipment of node.
In one embodiment, the real time status information includes: the open and-shut mode information and electric current of equipment.For node
For equipment, open and-shut mode information can refer to the working condition or closed state of equipment；For edge equipment, open and-shut mode
Information refers to the normally open or normally off of equipment.
In one embodiment, described side formula network model is SVG (saleable vector graphics, Scalable Vector
Graphics) graphical model.Accordingly, the corresponding database of described side formula network model can be also established, the database is adopted
With Metadata data model store each known node, it is each it is known while real-time status data and node and while connection believe
Breath.Metadata (Metadata), also known as broker data, relaying data, for describe data data (data about data),
The information of data attribute (property) is mainly described, for support as instruction storage location, historical data, resource lookup,
The functions such as file record.Metadata a kind of electronic type catalogue at last, in order to achieve the purpose that scheduling, it is necessary to describe and receive
The interior perhaps characteristic of data is hidden, and then reaches the purpose for assisting data retrieval.Purpose is to be convenient for the connectivity point of network
The quick predict of the power/current of analysis and each station equipment.
In one embodiment, each to scheme by each known node, each known pel while as described in formula network model
The id of member is indicated using " primitive types: pel name@pel state " mode.Wherein, for there are the figures of opening and closing two states
Member indicates out that@1 indicates to close with@0；For the pel of transformer class, high, medium and low three side winding is respectively indicated with@0 ,@1 ,@2；
Pel complicated for car switch etc., can be using 0@0 (switch is opened, and disconnecting link is opened) of@, 0@1 (switch is opened, and disconnecting link closes) of@, 1@0 of@
The suffix of 1@1 (switch closes, and disconnecting link closes) of (switch close, disconnecting link open) ,@distinguishes state.
S13 connects according to the real-time status data of each known node, the real-time status data on each known side and the network
Communication breath carries out Load flow calculation to the electric system.
In one embodiment, can according to described each known node current in formula network model, it is each known while electricity
Stream and the communication information predict the respectively electric current of node to be asked and/or the respectively electric current on side to be asked using plus and minus calculation.Such as Fig. 5
Shown under tree-shaped power supply mode, the variation of branch electric current caused by the variation of tree only generates shadow to its higher level's branch
It rings, and on collateral branch's electric current without influence, the rapidity of electrical network analysis calculating thus can be realized using the simple algorithm of electric current superposition.By
It is calculated in only carrying out simple plus-minus, therefore calculates and be free of transmission error in error, precision is higher；And generated by data acquisition
Accidental error also tends to 0 because of the increase of calculation amount.
In one embodiment, can by each fringe node in formula network model and its it is corresponding while be used as known node and
Known side, known node as shown in Figure 5 include node 1, node 2, node 3, node 5, node 7, node 8 and node 9,
It is known while include (1) while, (2) while, (3) while, (7) while, (8) while and (9) side.Currently, according to practical feelings
Condition can will will be led when assessing power supply plan except main grid equipment is as unknown edge equipment and/or unknown point device
Other equipment except power grid, therefore can be by known in each power supply plan as known edge equipment and/or known point device
The current conditions of edge equipment and/or known point device predict the current conditions of each main grid equipment.
It in one embodiment, can be the first side by the device flag of normally off in described side formula network model, it will
The device flag of normally open is the second side, is distinguished with this.Such as: the edge equipment of normally off is labeled as solid line, it will
The edge equipment of normally open is labeled as dotted line；Alternatively, the edge equipment of normally off is identified with logical truth, by the side of normally open
Equipment is identified with logical falsehood.When needing to plan in power supply plan, power train can be adjusted by adjusting the open and-shut mode of each edge equipment
The network connectivty of system, and then the electric current superposition algorithm by taking no account of voltage quickly carries out the Load flow calculation of electric system, root
The feasibility and superiority and inferiority of each planning power supply plan are assessed according to calculation of tidal current.Such as by the respectively electric current of node to be asked and/or respectively
The electric current on side to be asked is compared with corresponding predetermined current threshold, adjusts described side formula network mould according to comparison result
The connected state on each side in type.
In one embodiment, also adaptability tune can be carried out to the connected state of circuit system according to the result of Load flow calculation
It is whole, such as: by detecting the respectively electric current of node to be asked and/or respectively whether the electric current on side to be asked exceeds corresponding predetermined current
Threshold value, if so, the connected state (folding condition of each edge equipment) when described of adjustment is each in formula network model, so that root
According to network-in-dialing information adjusted, respectively the electric current of node to be asked and/or respectively the electric current on side to be asked without departing from corresponding
Predetermined current threshold.
In one embodiment, after the attribute information and the link information that obtain each station equipment, corresponding side formula is constructed
Before network model, equipment can also be screened, the preassigned topological structure on electric system of rejecting does not have influential
Device object, according to remaining device build point side formula network model.Such as grounding switch, PT, capacitor etc. are due to system
Topological structure do not influence, therefore can not define, with this can further simplified model complexity, reduce Load flow calculation
Complexity.
The tidal current computing method of the electric system of above-described embodiment, computational efficiency is high, and the low precision of computation complexity is high, this
External enwergy covers network-wide basis, therefore is not only suitable for the offline decision-making parties such as Electric Power Network Planning, engineering design, typical operation modes accounting
Face is also applied for the on-line decisions such as electric network accident management, fast power restoration, the whole network self-healing, temporal fashion risk analysis.
In conjunction with above-described embodiment, below by taking real-time grid scheduling decision as an example, to the trend meter of electric system of the invention
Calculation method is illustrated.
In practice, in real-time grid scheduling decision, the main problem being typically concerned about has network parts for power engineering
Whether each equipment overloads in connectivity and network.Wherein:
1) connectivity of network parts.It is used as power grid part of the whole, whether user or substation, suppression
Or transmission line etc., from the angle of network topology structure, connection with main power grid it is whether polynary it is reliable, whether with main power grid
There is Mulit-point Connection, whether have spare tie point that can reconnect with main power grid rapidly under common tie point disconnection
Come.Only have one to be connected to side such as in Fig. 3 or Fig. 4, between node 10 and node 11, therefore when the edge equipment disconnects, does not deposit
In other spare communication paths；And in addition to there is one to be directly connected to side between node 10 and node 5, when the edge equipment disconnects,
There is also other spare communication paths (such as node 10- node 11- node 6- node 4- node 5).In Fig. 5, when (6) side
When corresponding edge equipment is currently normally open, the corresponding equipment of node 6 can also be connected to section by node 5, node 8, node b
The corresponding equipment of point m (equipment that the equipment is main power grid).Backup path can be reconnected with main grid equipment rapidly if it exists
Get up, indicates that the connectivity of electric system is preferable.
2) whether each equipment overloads in network.In the case of any possible, the current value of each equipment carrying is in network
It is no to be more than or be more than respective prescribed limit.If equipment nonoverload, that is, be considered one it is feasible as a result, without separately
Calculate the voltage value of equipment.In conjunction with the point side formula network model of above-mentioned Fig. 4, Fig. 5, current network-in-dialing information is obtained, in turn
The current value of each unknown node, each unknown side can be predicted by plus and minus calculation.
Load flow calculation is carried out for above-mentioned both sides problem, designs new network topology model-side formula Top Modules
Type and the electric current superposition algorithm for taking no account of voltage.It is specifically described as follows:
Point side formula topological model as shown in Figure 3 illustrates a side by taking the bus structure of a certain double-bus band bypass as an example
The topology definition of formula topological model station equipment.In this definition, specify the range of point device, edge equipment: all Hard links and
The device definition for being not available for switching action in operation is " point " equipment；Such as main transformer, bus, route, short leg, busbar
Deng；A point, such as route, downlead etc. that T connects are defined as by the hardwired a plurality of route of screw, line row, lead etc..
One point can connect multiple summits.All device definitions that can carry out switching action in operation are " side " equipment；Such as open circuit
Device, isolation switch etc..And grounding switch, PT, capacitor etc. be since the topological structure on network influences, it can not be predetermined
Justice.A line can only connect two points.The model can match electrical connection in substation, realize the system of each voltage class equipment
One topology definition.
Above-mentioned station equipment is converted to the figure after simple point-side structure as shown in figure 3, bold portion is normally closed in Fig. 3
Equipment, dotted portion are normally opened equipment.In order to more intuitively indicate network topology structure, the model of Fig. 3 is passed through into simple deformation
Model shown in Fig. 4 can be obtained.When more substations by route, main transformer connection after, electric power networks are constituted, according to a side
The definition of formula topological model can ideally construct tree-like side formula network model as shown in Figure 5.
Fast current superposition algorithm: power grid removes 220kV and above part in looped network state when operating normally
Except lower, 110kV and following voltage class part are typically in tree-shaped power supply state, do not constitute looped network and (or do not constitute ring substantially
Net).On the basis of Fig. 4 or model shown in fig. 5, the database of electric network composition can be established, for the quick of network connectivty
Analysis and the quick calculating of grid power, electric current etc..
The real-time running data of each equipment in Fig. 4 Fig. 5 model of availability data acquisition system acquisition is calculated in real time.
By taking Fig. 5 model as an example, under tree-shaped power supply mode, the variation of branch electric current caused by the variation of tree, only to its higher level
Branch has an impact, and on collateral branch's electric current without influence, the simple algorithm of electric current superposition thus can be used, realize power network current analysis
The rapidity of calculating.It is calculated due to only carrying out simply adding and subtracting, transmission error is free of in the error of calculated result, and adopted by data
The accidental error that collection generates also tends to 0 because of the increase of calculation amount.
Based on above-mentioned power flow algorithm and calculation method, combined with available data acquisition system, it can be across power grid electricity
Grade is pressed, various power grid proximate analysis functional modules are easily developed, realizes that the operating analysis of the whole network quickly calculates, to be
Unified operation of power networks on-line decision provides quick, objective ancillary service, can improve operation of power networks efficiency and safe operation
Level can also improve Electric Power Network Planning research level.In terms of operation of power networks on-line decision, it can largely carry out and take no account of voltage
Load flow calculation calculates the apparatus of load under heterogeneous networks connection situation in real time, provides feasible current value as a result, realizing scheduling fortune
Capable high-speed decision.Such as accident prediction establishment, accident aid decision, main distribution one fast power restoration integrated decision-making, network are standby
From throwing strategy, the whole network Self healing Strategy, quick risk analysis etc..
It should be noted that for the various method embodiments described above, describing for simplicity, it is all expressed as a series of
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described, because according to
According to the present invention, certain steps can use other sequences or carry out simultaneously.In addition, also any group can be carried out to above-described embodiment
It closes, obtains other embodiments.
Based on thought identical with the tidal current computing method of the electric system in above-described embodiment, the present invention also provides electric power
The Load flow calculation device of system, the device can be used for executing the tidal current computing method of above-mentioned electric system.For ease of description, electric
In the structural schematic diagram of the Load flow calculation Installation practice of Force system, part related to the embodiment of the present invention illustrate only,
It will be understood by those skilled in the art that the restriction of schematic structure not structure twin installation, may include more more or less than illustrating
Component, perhaps combine certain components or different component layouts.
Fig. 6 is the schematic diagram of the Load flow calculation device of the electric system of one embodiment of the invention；As shown in fig. 6,
The Load flow calculation device of the electric system of the present embodiment includes: model construction module 510, topological determining module 520 and trend
Computing module 530, details are as follows for each module:
The model construction module 510, for each according to the global naming acquisition of information of the device object in electric system
The attribute information and link information of station equipment construct corresponding side formula network model；The global naming information is basis
The top-down name information that RDF specification and CIM standard carry out the device object in electric system；The global naming
Unique identification of the information as device object, and being capable of hierarchical relationship between embodiment device object；Described side formula network
In model, would not allow for the device flag for carrying out switching action is node, is side by the device flag for allowing to carry out switching action,
And a node connects at least one side, a line can only connect two nodes.
In a preferred embodiment, in described side formula network model, by the equipment of normally off and normally open
Equipment is respectively labeled as different types of side.
It is selected in embodiment one, it is described that the equipment for carrying out switching action is not allowed to include: main transformer, bus, route, short draw
Line, passes through at least one of the hardwired a plurality of route of screw, line row, lead at busbar.It is described to allow to carry out switching action
Equipment includes: at least one of breaker, isolation switch.
In one embodiment, the model construction module 510 is particularly used in the attribute information for obtaining each station equipment
And after link information, station equipment is screened, rejecting is preassigned not to influence the topological structure of electric system
Equipment, and corresponding side formula network model is constructed according to remaining station equipment, to be further simplified model structure, improved
Computational efficiency.
The topology determining module 520, for determining the current network of electric system according to described side formula network model
Communication information, determine described known node in formula network model and it is known while, obtain each known node and each known side
Real-time status data；
The Load flow calculation module 530, for the real-time shape according to the real-time status data of each known node, each known side
State data and the network-in-dialing information carry out Load flow calculation to the electric system.
In a preferred embodiment, described side formula network model is tree shaped model.
It should be noted that in the embodiment of the Load flow calculation device of the electric system of above-mentioned example, between each module
The contents such as information exchange, implementation procedure, due to being based on same design, bring technology with preceding method embodiment of the present invention
Effect is identical as preceding method embodiment of the present invention, and for details, please refer to the description in the embodiment of the method for the present invention, herein not
It repeats again.
In addition, the logic of each functional module is drawn in the embodiment of the Load flow calculation device of the electric system of above-mentioned example
Divide and be merely illustrative of, can according to need in practical application, such as the configuration requirement of corresponding hardware or the reality of software
Existing convenient consideration, above-mentioned function distribution is completed by different functional modules, i.e., is filled the Load flow calculation of the electric system
The internal structure set is divided into different functional modules, to complete all or part of the functions described above.Wherein each function
Mould both can take the form of hardware realization, can also be realized in the form of software function module.
It will appreciated by the skilled person that realizing all or part of the process in above-described embodiment method, being can
It is completed with instructing relevant hardware by computer program, the program can be stored in a computer-readable storage and be situated between
In matter, sells or use as independent product.When being executed, the complete of the embodiment such as above-mentioned each method can be performed in described program
Portion or part steps.Wherein, the storage medium can be magnetic disk, CD, read-only memory (Read-Only
Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
The embodiments described above only express several embodiments of the present invention, should not be understood as to the invention patent range
Limitation.It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the premise,
Various modifications and improvements can be made, and these are all within the scope of protection of the present invention.Therefore, the scope of protection of the patent of the present invention
It should be determined by the appended claims.
Claims (10)
1. a kind of tidal current computing method of electric system characterized by comprising
According to the attribute information and link information of each station equipment of global naming acquisition of information of the device object in electric system,
Construct corresponding side formula network model；The global naming information meets RDF specification and CIM standard, as device object
Unique identification in the power system, and being capable of hierarchical relationship between embodiment device object；Described side formula network model
In, it is node by the device flag predetermined for not allowing to carry out switching action, allows to carry out folding behaviour by predetermined
The device flag of work is side, and a node connects at least one side, and a line can only connect two nodes；It is described do not allow into
The equipment of row switching action includes: main transformer, bus, route, short leg, busbar, passes through the hardwired a plurality of route of screw, line
At least one of row, lead；
The current network-in-dialing information of electric system is determined according to described side formula network model；Determine described side formula network mould
Known node and known side in type, obtain the real-time status data of each known node and each known side；The real-time status number
According to the open and-shut mode information for including: equipment；For node device, open and-shut mode information include equipment working condition or
Closed state；For edge equipment, open and-shut mode information includes the normally open or normally off of equipment；
According to the real-time status data of each known node, the real-time status data and the network-in-dialing information on each known side,
Load flow calculation is carried out to the electric system.
2. the tidal current computing method of electric system according to claim 1, which is characterized in that described side formula network model
For SVG graphical model；
The tidal current computing method of the electric system further include: establish the corresponding database of described side formula network model, institute
State database using Metadata data model store each known node, it is each it is known while real-time status data and node and while
Network-in-dialing information.
3. the tidal current computing method of electric system according to claim 1, which is characterized in that in described side formula network mould
In type, the equipment of the equipment of normally off and normally open is respectively labeled as different types of side.
4. the tidal current computing method of electric system according to any one of claims 1 to 3, which is characterized in that it is described allow into
The equipment of row switching action includes: at least one of breaker, isolation switch.
5. the tidal current computing method of electric system according to any one of claims 1 to 3, which is characterized in that obtain in each station
After the attribute information and link information of equipment, before corresponding side formula network model of building further include:
Station equipment is screened, the preassigned topological structure on electric system is rejected and does not have influential equipment.
6. the tidal current computing method of electric system according to any one of claims 1 to 3, which is characterized in that described side formula
Network model is tree shaped model.
7. the tidal current computing method of electric system according to claim 1, which is characterized in that the real-time status data packet
It includes: the open and-shut mode information and electric current of equipment；
According to the real-time status data of each known node, the real-time status data and the network-in-dialing information on each known side,
Load flow calculation is carried out to the electric system, comprising:
According to described each known node current in formula network model, it is each known while electric current and network-in-dialing letter
Breath predicts the respectively electric current of node to be asked and/or the respectively electric current on side to be asked using plus and minus calculation.
8. the tidal current computing method of electric system according to claim 7, which is characterized in that carried out to the electric system
After Load flow calculation, further includes:
The respectively electric current of node to be asked and/or the respectively electric current on side to be asked are compared with corresponding predetermined current threshold, root
According to comparison result adjust described it is each in formula network model while connected state.
9. a kind of computer equipment, including memory and processor, the memory are stored with computer program, feature exists
In the step of processor realizes any one of claims 1 to 8 the method when executing the computer program.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method described in any item of the claim 1 to 8 is realized when being executed by processor.
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