CN109193644A - Based on power grid-information-traffic integration of three networks modeling and simulating method - Google Patents
Based on power grid-information-traffic integration of three networks modeling and simulating method Download PDFInfo
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- CN109193644A CN109193644A CN201811209407.XA CN201811209407A CN109193644A CN 109193644 A CN109193644 A CN 109193644A CN 201811209407 A CN201811209407 A CN 201811209407A CN 109193644 A CN109193644 A CN 109193644A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
The invention discloses a kind of based on power grid-information-traffic integration of three networks modeling and simulating method, including establishing power grid-information-traffic integration of three networks structure system；Establish power grid-information-traffic integration of three networks simulation model；Power grid-information-traffic integration of three networks model is emulated, the influence under the integration of three networks to power grid is analyzed.The present invention establishes power grid-information-traffic three-network integration system simulation model, and emulated and analyzed using the interactive relation between power grid, information, traffic attribute as point of penetration, more intuitively reflecting in three-network integration system influences the main coupling factor of operating status；Using electric car as Coupling point, accurately reflect the influence of electric power facility failure and traffic route failure to three-network integration system；Therefore the method for the present invention can be analyzed and be emulated to the influence for accessing power grid and traffic etc. for electric car after power grid-information-traffic integration of three networks and its charging pile, and the method for the present invention science is reliable.
Description
Technical field
Present invention relates particularly to a kind of based on power grid-information-traffic integration of three networks modeling and simulating method.
Background technique
With the development and the improvement of people's living standards of national economy technology, electric energy has become people's production and life
Essential secondary energy sources in work, endless convenience is brought to people's production and life.Meanwhile with fossil fuel
Exhausted and environmental problem to become increasingly conspicuous, electric car has also obtained great development.Currently, with electric car development and
The development of intelligent industry, electric power, information and the depth integration of traffic will effectively promote green energy resource, internet economy, intelligence
The fields such as traffic Innovative Development.
Currently, gradually popularizing with electric car and its charging pile, had it is more about electric car and its
The research for electric network influencing such as charging pile equipment, such as electric car access the shadow to electric network reliability, economy on a large scale
It rings, or to reduction energy consumption, the influence for reducing noxious gas emission etc..With the arriving of intellectualization times, present electricity
Net, Information Network and the network of communication lines have gradually started the process of fusion, but there has been no be directed to power grid-information-traffic three at present
After net fusion, the research of the influence of electric car and its charging pile to access power grid.
Summary of the invention
The purpose of the present invention is to provide one kind for electric car and its charging after power grid-information-traffic integration of three networks
Stake to access electric network influencing analyzed and emulated based on power grid-information-traffic integration of three networks modeling and simulating method.
It is provided by the invention this based on power grid-information-traffic integration of three networks modeling and simulating method, including walk as follows
It is rapid:
S1. power grid-information-traffic integration of three networks structure system is established；
S2. power grid-information-traffic integration of three networks simulation model is established；
S3. the simulation model obtained according to step S2 emulates power grid-information-traffic integration of three networks model, thus
Analyze the influence under the integration of three networks to power grid.
Power grid-information-traffic integration of three networks structure system described in step S1, specifically include traffic layer, communication layers and
Physical layer；Traffic layer includes electric vehicle real time information and road real time information etc.；Communication layers include data transmission network and sensing
Device etc., sensor are used to collect all kinds of real time information of power grid, Information Network and the network of communication lines, and are passed by data transmission network
It is defeated；Physical layer then includes electric network source and charging pile, and electric network source conveys the energy for the power grid, charging pile be then used for be
Electric vehicle provides charge power supply.
Power grid-information-traffic integration of three networks simulation model specially establishes emulation mould using following steps
Type:
A. the description of power grid is established using following formula:
GE=[E (N), E (L)]
G in formulaEIt is described for the connected graph of power grid, E (N) is power grid bus set, and E (L) is the line set of power grid；
B. the description of the network of communication lines is established using following formula:
GT=[T (N), T (L)]
G in formulaTIt is described for the connected graph of the network of communication lines, T (N) is intersection point set, and T (L) is road set, for retouching
State the connection relationship between the length and road junction in each section；
C. the step A and step B model established is combined, obtains power grid-network of communication lines topological model；
D. the behavior path of electric car is established using following formula:
D in formularsPath total length for electric car from path starting point r to path termination s, kiFor the number of road, Krs
For all set of paths from path starting point r to path termination s；dk,iFor road kiLength；
E. the behavior path established according to step D, the traveling strategy of electric car is established using following rule:
If the mileage travelled of electric car is less than or equal to the behavior path total length of electric car, electric car is from road
Diameter starting point r starts, after arriving first nearest charging station charging, further according to selection route to path termination s；
If the mileage travelled of electric car is greater than the behavior path total length of electric car, electric car is directly from path
Starting point r starts, and directly travels according to the path of selection to path termination s.
Power grid-information-traffic integration of three networks model is emulated described in step S3, specially using following steps into
Row emulation:
A. in physical layer, curve graph is met according to the day that power grid measurement obtains, Grid is classified；
B. in traffic layer, the typical electric car in current market is chosen as simulation object；
C. in communication layers, position and the state of charge of electric car is determined, judges the driving status of electric car, thus real
The now state of charging load and traffic road congestion；
D. according to historical data, obtaining step b selected electric car is in festivals or holidays and workaday traveling behavior；
E. the cumulative probability of electric car quantity in the transportation network under different scenes, different Grids is emulated
Analysis；
F. it under different scenes, emulates after different roads is blocked, the influence which fluctuates network load；
G. under different scenes, when emulating different charging pile failures, the failure charging pile is to network load fluctuation, traffic
The influence of flow information.
The different scenes are defined as follows: it are accustomed to according to trip, is divided into working day and weekend scene:
Weekend scene: the departure place and destination of electric car car owner meets random distribution；
Operative scenario: by the stroke of the electric car car owner in entire survey region, in the form of departure place → destination,
It is divided into following a few classes: 1. industrial area → industrial area 2. industrial area → shopping centre 3. industrial area → residential quarter 4. shopping centre → industrial area
5. shopping centre → shopping centre 6. shopping centre → residential quarter 7. residential quarter → industrial area 8. residential quarter → shopping centre 9. residential quarter → live
9 kinds of quarter situation.Such as, by taking industrial area as an example, for 13.24% electric car from industrial area, destination is industrial area,
9.91% electric car is from industrial area, and destination is shopping centre, and 13.20% electric car is from industrial area, mesh
Ground be residential quarter.
It is provided by the invention this based on power grid-information-traffic integration of three networks modeling and simulating method, analyze electric car
Traveling behavior, traffic flow, the changing rule between operation of power networks state, to establish power grid-information-traffic three-network integration system
Simulation model, and emulated and analyzed using the interactive relation between power grid, information, traffic attribute as point of penetration, it is more intuitive
Ground reflects in three-network integration system the main coupling factor for influencing operating status；Using electric car as Coupling point, accurately reflect
It has the influence of electric power facility failure and traffic route failure to three-network integration system；Therefore the method for the present invention can be directed to power grid-
The influence of electric car and its charging pile to access power grid and traffic etc. is analyzed and is emulated after information-traffic integration of three networks,
And the method for the present invention science is reliable.
Detailed description of the invention
Fig. 1 is the method flow diagram of the method for the present invention.
Fig. 2 is power grid-information-traffic integration of three networks model schematic of the method for the present invention.
Fig. 3 is the power grid-traffic net topology schematic diagram of the method for the present invention.
Fig. 4 is the industrial area, shopping centre and residential quarter power load schematic diagram of the method for the present invention.
Fig. 5 is the cumulative probability distribution schematic diagram of the electric car of the method for the present invention.
Fig. 6 is the cumulative probability distribution schematic diagram of the electric car in each region of the method for the present invention.
Fig. 7 is the network load increment schematic diagram of the method for the present invention.
Fig. 8 is the charging pile load increment schematic diagram of the method for the present invention.
Fig. 9 be the method for the present invention charging pile failure under electric car cumulative probability distribution schematic diagram.
Specific embodiment
It is as shown in Figure 1 the method schematic diagram of the method for the present invention: provided by the invention this based on power grid-information-traffic
The modeling and simulating method of the integration of three networks, includes the following steps:
S1. power grid-information-traffic integration of three networks structure system is established；Specifically include traffic layer, communication layers and physics
Layer；
Traffic layer includes electric vehicle real time information and road real time information etc.；Electric automobile main driving habit and charging
Behavior will have an impact traffic flow；Meanwhile traffic flow also will affect in turn car owner Path selection and the charging time and
Characteristic, to influence the power quality and peakload of power grid；
Communication layers include data transmission network and sensor etc., and sensor is for collecting power grid, Information Network and the network of communication lines
All kinds of real time information, and transmitted by data transmission network；The communication matchmaker such as intelligent detection unit, network and work station is provided
It is situated between, collects and the real-time road of the transmission transimission power of electric system, node voltage and transportation network, is realized by information flow
The information interchange of transportation network and electric system；
Physical layer then includes electric network source and charging pile, and electric network source conveys the energy for the power grid, and charging pile is then
For providing charge power supply for electric vehicle；Electric car injected to electric system by V2G technology/electric energy is extracted, so as to cause
Load variations；In addition, the large-scale power generation of tradition and load also access whole system in this layer, manager's centralized dispatching of system is obeyed
S2. power grid-information-traffic integration of three networks simulation model is established；Specially emulation mould is established using following steps
Type:
A. the description of power grid is established using following formula:
GE=[E (N), E (L)]
G in formulaEIt is described for the connected graph of power grid, E (N) is power grid bus set, and E (L) is the line set of power grid；
B. the description of the network of communication lines is established using following formula:
GT=[T (N), T (L)]
G in formulaTIt is described for the connected graph of the network of communication lines, T (N) is intersection point set, and T (L) is road set, for retouching
State the connection relationship between the length and road junction in each section；
C. the step A and step B model established is combined, obtains power grid-network of communication lines topological model；
D. the behavior path of electric car is established using following formula:
D in formularsPath total length for electric car from path starting point r to path termination s, kiFor the number of road, Krs
For all set of paths from path starting point r to path termination s；dk,iFor road kiLength；
E. the behavior path established according to step D, the traveling strategy of electric car is established using following rule:
If the mileage travelled of electric car is less than or equal to the behavior path total length of electric car, electric car is from road
Diameter starting point r starts, after arriving first nearest charging station charging, further according to selection route to path termination s；
If the mileage travelled of electric car is greater than the behavior path total length of electric car, electric car is directly from path
Starting point r starts, and directly travels according to the path of selection to path termination s；
S3. the simulation model obtained according to step S2 emulates power grid-information-traffic integration of three networks model, thus
Analyze the influence under the integration of three networks to power grid；Specially emulated using following steps:
A. in physical layer, curve graph is met according to the day that power grid measurement obtains, Grid is classified；Specially according to electricity
Net measures resulting daily load curve figure, and network is divided into three regions, i.e. industrial area, shopping centre and residential quarter；
B. in traffic layer, the typical electric car in current market is chosen as simulation object；
C. in communication layers, position and the state of charge of electric car is determined, judges the driving status of electric car, thus real
The now state of charging load and traffic road congestion；
D. according to historical data, obtaining step b selected electric car is in festivals or holidays and workaday traveling behavior；
E. the cumulative probability of electric car quantity in the transportation network under different scenes, different Grids is emulated
Analysis；
It is accustomed to according to general trip, is divided into working day and weekend scene.
Weekend scene: the departure place and destination of electric car car owner meets random distribution；
Operative scenario: the stroke (departure place → destination) of the electric car car owner in entire survey region is divided into following
Several classes: 1. industrial area → industrial area 2. industrial area → shopping centre 3. industrial area → residential quarter 4. shopping centre → industrial area 5. shopping centre
→ shopping centre 6. shopping centre → residential quarter 7. residential quarter → industrial area 8. residential quarter → shopping centre 9. 9 kinds of residential quarter → residential quarter feelings
Condition.Such as, by taking industrial area as an example, for 13.24% electric car from industrial area, destination is industrial area, 9.91% it is electronic
Automobile is from industrial area, and destination is shopping centre, and for 13.20% electric car from industrial area, destination is residential quarter.
F. it under different scenes, emulates after different roads is blocked, the influence which fluctuates network load；
G. under different scenes, when emulating different charging pile failures, the failure charging pile is to network load fluctuation, traffic
The influence of flow information.
Below in conjunction with a specific embodiment, the method for the present invention is further described:
Power grid-information-traffic integration of three networks structure system is constructed, schematic diagram is as shown in Figure 2；
Then, power grid-information-traffic integration of three networks structure system of building is modeled: is matched with 33 node of IEEE
For electric system, establishes and consider that power grid-traffic corresponding relationship integration of three networks topological model, 33 node system of IEEE are abstracted
At by 33 nodes, 32 sides, load 370MVA physical layer, node size and the power grid scale of the network of communication lines match, and includes
Intersection node 33,53, road, road total length 1414km, average lane length 26.68km.As shown in Figure 3.
Based on daily load curve, physical layer topological model is divided into three regions, i.e. industrial area, shopping centre and residential quarter.
Wherein, in power grid, node 1 is equalization point, is connected by transformer with high-pressure side.Load curve is as shown in Figure 4.
For traffic layer, the main typical electric car of several points at present of choosing is as simulated object, as shown in table 1:
The major parameter schematic table for the typical electric car that table 1 is chosen
| BYD K9 | BYD e6 | Tesla model S | |
| Capacity/kwh | 324 | 57 | 85 |
| MI/km | 250 | 120 | 480 |
| The fast charge time | 0.5h (50%) | 0.25h (80%) | 1h |
| The trickle charge time | 6h | 10h | 10h |
| Model | Bus | Private car/taxi | Commercial vehicle |
| Percentage | 31% | 23%/23% | 23% |
Scene 1: departure place-destination is randomly selected to (OD to), OD is to shared percentage such as table 2 in network partition
It is shown:
2 OD of table is to distribution schematic table
| Industrial area | Shopping centre | Residential quarter | |
| Industrial area | 13.24% | 9.91% | 13.20% |
| Shopping centre | 9.97% | 7.40% | 9.93% |
| Residential quarter | 13.16% | 9.95% | 13.24% |
Scene 2:BYD K9 uniformly selectes departure place as bus model, from industrial area, shopping centre and residential quarter；
50%BYD e6 is as private savings vehicle model from residential quarter；Other 50%BYD e6 set out at random as vehicle model is hired out；
Tesla model S is as commercial vehicle model from shopping centre.All car owner destinations are random selection.
By taking IEEE33 node system as an example (as shown in Figure 3), coupling of the charging station as power grid and network of communication lines energy transmission
Point chooses 8 representative nodes as charging station in simulations, is denoted as ΩT={ #5, #6, #20, #3, #10, #30, #
31,}.Assuming that the electric car of Full Charge Capacity, from 8:00a.m. from departure place, electric car speed is 30km/h.With 15min
It is a time interval as minimum research unit.
Under the conditions of scene 1 and scene 2: emulation obtains the cumulative probability distribution map of electric car quantity in transportation network as schemed
Shown in 5.
Investigate influence and electric network fault influence to the network of communication lines of the road service system to power grid:
(1) influence of the road service system to power grid
In the model shown in this method, such as Fig. 3, the maximum road of traffic flow is (6,26), is set as primary fault, road
The comparing result figure of network load increment is as shown in Figure 7 before and after the failure of road.
It is as shown in Figure 8 to compare 2 typical charging station load increments.Fig. 8 (a) is #6 charging station load increment, the charging
Erect-position is and nearest with failure road distance in transportation network center.Fig. 8 (b) is #31 charging station load increment, is located at and hands over
Open network marginal position.
It can be seen that according to Fig. 8, after the load of #6 charging station increases to road service system from the 5.88MW before road service system
14.05MW, and #31 charging station load increment is basically unchanged.Thus illustrating, the charging station institute near failure is impacted bigger,
And the charging station institute far from failure is impacted smaller.
(2) influence of the electric network fault to the network of communication lines
In the case where some charges station failure, the electric car for considering that plan goes the charging station to charge originally will be by for analysis
Compel the influence for selecting the charging behavior of other charging stations to traffic flow, the traffic flow cumulative probability distribution under scene 1 and scene 2 is as schemed
Shown in 9.From fig. 9, it can be seen that two traffic flows essentially coincide, i.e., no matter scene 1 or scene 2, the station failure that charges is to traffic
The whole jam situation of net influences little.
Claims (5)
1. it is a kind of based on power grid-information-traffic integration of three networks modeling and simulating method, include the following steps:
S1. power grid-information-traffic integration of three networks structure system is established；
S2. power grid-information-traffic integration of three networks simulation model is established；
S3. the simulation model obtained according to step S2 emulates power grid-information-traffic integration of three networks model, to analyze
To the influence of power grid under the integration of three networks.
2. according to claim 1 based on power grid-information-traffic integration of three networks modeling and simulating method, it is characterised in that
Power grid-information-traffic integration of three networks structure system, specifically includes traffic layer, communication layers and physical layer described in step S1；It hands over
Logical layer includes electric vehicle real time information and road real time information；Communication layers include data transmission network and sensor etc., sensor
For collecting all kinds of real time information of power grid, Information Network and the network of communication lines, and transmitted by data transmission network；Physical layer is then
Including electric network source and charging pile, electric network source conveys the energy for the power grid, and charging pile is then used to provide for electric vehicle
Charge power supply.
3. according to claim 2 based on power grid-information-traffic integration of three networks modeling and simulating method, it is characterised in that
Power grid-information-traffic integration of three networks simulation model specially establishes simulation model using following steps:
A. the description of power grid is established using following formula:
GE=[E (N), E (L)]
G in formulaEIt is described for the connected graph of power grid, E (N) is power grid bus set, and E (L) is the line set of power grid；
B. the description of the network of communication lines is established using following formula:
GT=[T (N), T (L)]
G in formulaTIt is described for the connected graph of the network of communication lines, T (N) is intersection point set, and T (L) is road set, each for describing
Connection relationship between the length and road junction in section；
C. the step A and step B model established is combined, obtains power grid-network of communication lines topological model；
D. the behavior path of electric car is established using following formula:
D in formularsPath total length for electric car from path starting point r to path termination s, kiFor the number of road, KrsFor from
All set of paths of path starting point r to path termination s；dk,iFor road kiLength；
E. the behavior path established according to step D, the traveling strategy of electric car is established using following rule:
If the mileage travelled of electric car is less than or equal to the behavior path total length of electric car, electric car is from path
Point r starts, after arriving first nearest charging station charging, further according to selection route to path termination s；
If the mileage travelled of electric car is greater than the behavior path total length of electric car, electric car is directly from path starting point
R starts, and directly travels according to the path of selection to path termination s.
4. according to claim 3 based on power grid-information-traffic integration of three networks modeling and simulating method, it is characterised in that
Power grid-information-traffic integration of three networks model is emulated described in step S3, is specially emulated using following steps:
A. in physical layer, curve graph is met according to the day that power grid measurement obtains, Grid is classified；
B. in traffic layer, the typical electric car in current market is chosen as simulation object；
C. in communication layers, position and the state of charge of electric car is determined, judges the driving status of electric car, filled to realize
The state of electric load and traffic road congestion；
D. according to historical data, obtaining step b selected electric car is in festivals or holidays and workaday traveling behavior；
E. emulation point is carried out to the cumulative probability of electric car quantity in the transportation network under different scenes, different Grids
Analysis；
F. it under different scenes, emulates after different roads is blocked, the influence which fluctuates network load；
G. under different scenes, when emulating different charging pile failures, the failure charging pile is to network load fluctuation, the magnitude of traffic flow
The influence of information.
5. according to claim 4 based on power grid-information-traffic integration of three networks modeling and simulating method, it is characterised in that
Different scenes are defined as follows: being accustomed to according to trip, be divided into working day and weekend scene；
Weekend scene: the departure place and destination of electric car car owner meets random distribution；
Operative scenario: the stroke of the electric car car owner in entire survey region is divided into the form of departure place → destination
Several classes below: 1. industrial area → industrial area 2. industrial area → shopping centre 3. industrial area → residential quarter 4. shopping centre → industrial area 5. quotient
Industry area → shopping centre 6. shopping centre → residential quarter 7. residential quarter → industrial area 8. residential quarter → shopping centre 9. residential quarter → residential quarter 9
Kind situation.
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