CN109428343A - A kind of Method for optimized planning and device of new energy base Transmission Corridor transmission line capability - Google Patents
A kind of Method for optimized planning and device of new energy base Transmission Corridor transmission line capability Download PDFInfo
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- H02J3/382—
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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
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The present invention provides the Method for optimized planning and device of a kind of new energy base Transmission Corridor transmission line capability, comprising: the power output data statistics of new energy base；Go out force data building power grid time stimulatiom model according to the new energy base；It is calculated according to the optimization that the power grid time stimulatiom model carries out new energy base Transmission Corridor capacity, obtains the optimal value of Transmission Corridor capacity.It is accurate and reliable that technical solution provided by the invention considers the wind-powered electricity generation in new energy base, solar power generation power producing characteristics and new energy receiving end power grid digestion capability, calculated result；The quantitative relationship between new energy Transmission Corridor transmission line capability and new energy limited level is established, the transmission line capability of Transmission Corridor needed for selecting according to actual motion demand is realized.
Description
Technical field
The invention belongs to power system automatic fields, and in particular to a kind of new energy base Transmission Corridor transmission line capability
Method for optimized planning and device.
Background technique
Mainly based on extensive centralization exploitation, the generations of electricity by new energy such as extensive new energy base are concentrated for generation of electricity by new energy
Regional abandonment, abandoning optical phenomenon happen occasionally, and being continuously increased with new energy installed capacity, and generation of electricity by new energy limited situation is not
It is disconnected to deteriorate.New energy base Transmission Corridor ability to transmit electricity deficiency is the major reason for causing new energy abandonment, abandoning light.With conventional electricity
Source is compared, and new forms of energy resource energy density is low, and equipment utilizes hour relatively low at full capacity, if planning according to new energy installed capacity new
Energy Base Transmission Corridor capacity, will lead to that Transmission Corridor utilization rate of equipment and installations is relatively low, and economy is poor.How new energy base is designed
The transmission line capability of ground Transmission Corridor improves the utilization rate of Transmission Corridor as far as possible under the premise of ensureing that new energy dissolves, is working as
It is preceding still without effective design method.
According to wind power output and solar power generation power output statistical data, wherein about 90% generation of electricity by new energy power output concentrates on
40% installed capacity is hereinafter, and new energy base sends power transmission capacity of pow outside generally according to new energy installed capacity in region
60%~70% carries out planning and designing；And current new energy base Transmission Corridor transmission line capability design does not consider receiving end power grid usually
New energy digestion capability, there are Transmission Corridor still have the ability but receiving end digestion capability it is insufficient a possibility that.
Summary of the invention
Blank and deficiency for the prior art, the invention proposes a kind of new energy base Transmission Corridor transmission line capabilities
Method for optimized planning and device.
A kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability, comprising:
The power output data statistics of new energy base；
Go out force data building power grid time stimulatiom model according to the new energy base；
It is calculated, is sent outside according to the optimization that the power grid time stimulatiom model carries out new energy base Transmission Corridor capacity
The optimal value of channel capacity.
Further, new energy base power output data statistics includes:
According to going out the wind-powered electricity generation of force data and historical record new energy base history run year and solar power generation is rationed the power supply number
According to, force data is gone out to new energy and carries out reduction of rationing the power supply, respectively obtain wind-powered electricity generation and solar power generation theoretical power (horse-power)；
By the theoretical power (horse-power) data of wind-powered electricity generation and solar power generation divided by the installed capacity at corresponding moment, respectively obtain wind-powered electricity generation and
The normalization data of solar power generation.
Further, the building power grid time stimulatiom model includes:
Go out force data building new energy base wind-powered electricity generation and solar power generation power output model according to the new energy base；
Construct generation of electricity by new energy receiving end electric network model；
Construct Transmission Corridor model；
According to new energy base wind-powered electricity generation and solar power generation power output model, generation of electricity by new energy receiving end electric network model and send outside logical
Road model, to it is each when discontinuity surface new energy hair situation of rationing the power supply optimize.
Further, new energy base wind-powered electricity generation and solar power generation power output model include: wind-powered electricity generation and solar power generation
Power constraint is shown below:
Wherein, Pw,nIt (t) is wind power of the new energy base n in t moment；It is new energy base n in t moment
Wind-powered electricity generation theoretical power (horse-power)；Ppv,nIt (t) is solar power generation power of the new energy base n in t moment；For new energy base n
In the solar power generation theoretical power (horse-power) of t moment.
Further, the generation of electricity by new energy receiving end electric network model includes:
Power balance constraint:
Pall.n(t)+Pw,n(t)+Ppv,n(t)+Ln,m(t)=Pl(t)
Wherein, Pall.nIt (t) is the general power of all conventional power unit generated outputs of t moment；Ln,m(t) for new energy base n to
The transimission power of receiving end power grid m；PlIt (t) is the total electricity load of t moment；
Normal power supplies Unit Commitment Constraint:
Wherein, XjIt (t) is operating status of the unit j in t moment；YjIt (t) is starting state of the unit j in t moment；Zj(t)
For unit j t moment shutdown status；
Normal power supplies units limits:
Xj(t)·Pj,min≤Pj(t)≤Pj,max·Xj(t)
Pj(t+1)-Pj(t)≤ΔPj,up
Pj(t)-Pj(t+1)≤ΔPj,down
Wherein, Pj,minAnd Pj,maxRespectively the power output lower limit of unit j and the power output upper limit；ΔPj,upWith Δ Pj,downRespectively
Unit j swashes the maximum value of ratio of slope maximum value and lower climbing rate；
Fired power generating unit heat supply units limits:
Wherein, Pj,BY(t) it contributes for t moment back pressure type fired power generating unit；For thermal power plant unit coupled thermomechanics coefficient；Hj
It (t) is t moment heat demand；Pj,CQ(t) it contributes for t moment steam extraction type fired power generating unit；
The constraint of power grid spinning reserve capacity:
Wherein, J is the total number of units of operating unit；PPreAnd PNreThe respectively upper spinning reserve of power grid and lower spinning reserve.
Further, the Transmission Corridor model includes:
Ln,m(t)=- Lm,n(t)
Ln,n(t)=0
Wherein,WithThe respectively lower limit value and upper limit value of new energy base Transmission Corridor transmission line capability, Ln,m(t)
It is new energy base n to the transimission power of receiving end power grid m.
Further, described according to new energy base wind-powered electricity generation and solar power generation power output model, generation of electricity by new energy receiving end electricity
Pessimistic concurrency control and Transmission Corridor model, to it is each when discontinuity surface new energy hair ration the power supply situation optimize include: new energy consumption
For optimization aim, it is shown below:
Wherein, T is to optimize total period；N is that new energy sends base quantity outside.
Further, the optimization that new energy base Transmission Corridor capacity is carried out according to the power grid time stimulatiom model
It calculates, the optimal value for obtaining Transmission Corridor capacity includes:
Calculating parameter is set, and the calculating parameter includes preset Transmission Corridor capacity and expected rate of rationing the power supply；
Based on the power grid time stimulatiom model, the parameter of the setting is optimized, Transmission Corridor capacity is calculated
Optimal value.
Further, the parameter to the setting optimizes the optimal value packet that Transmission Corridor capacity is calculated
It includes:
It is expected rate of rationing the power supply when new energy consumption is lower than, then reduces the preset Transmission Corridor capacity；New energy disappears
It receives and is higher than expected rate of rationing the power supply, then increase the preset Transmission Corridor capacity；
Until obtain acceptable new energy ration the power supply rate when Transmission Corridor capacity minimum value, the minimum value be send outside it is logical
The optimal value of road capacity.
A kind of optimization planning device of new energy base Transmission Corridor transmission line capability, described device include:
Data acquisition module, for the power output data statistics of new energy base；
Model building module, for going out force data building power grid time stimulatiom model according to the new energy base；
Optimization module, for carrying out the optimization of new energy base Transmission Corridor capacity according to the power grid time stimulatiom model
It calculates.
Further, the data acquisition module, is used for,
According to going out the wind-powered electricity generation of force data and historical record new energy base history run year and solar power generation is rationed the power supply number
According to, force data is gone out to new energy and carries out reduction of rationing the power supply, respectively obtain wind-powered electricity generation and solar power generation theoretical power (horse-power)；
By the theoretical power (horse-power) data of wind-powered electricity generation and solar power generation divided by the installed capacity at corresponding moment, respectively obtain wind-powered electricity generation and
The normalization data of solar power generation.
Further, the model building module includes:
New energy power output model submodule, for going out force data building new energy base wind-powered electricity generation according to the new energy base
With solar power generation power output model；
Receiving end electric network model submodule, for constructing generation of electricity by new energy receiving end electric network model；
Transmission Corridor model submodule, for constructing Transmission Corridor model；
Optimize submodule, for according to new energy base wind-powered electricity generation and solar power generation power output model, generation of electricity by new energy receiving end
Electric network model and Transmission Corridor model, to it is each when discontinuity surface new energy hair situation of rationing the power supply optimize.
Further, the optimization module includes:
Submodule is set, for being arranged calculating parameter, the calculating parameter include preset Transmission Corridor capacity and
It is expected that rate of rationing the power supply；
Computational submodule optimizes calculating to the parameter of the setting for being based on the power grid time stimulatiom model
Obtain the optimal value of Transmission Corridor capacity.
Compared with the latest prior art, technical solution provided by the invention has the advantages that
1, technical solution provided by the invention considers the wind-powered electricity generation in new energy base, solar power generation power producing characteristics and new
Energy receiving end power grid digestion capability, calculated result are accurate and reliable.
2, technical solution provided by the invention establish new energy Transmission Corridor transmission line capability and new energy limited level it
Between quantitative relationship, realize according to actual motion demand select needed for Transmission Corridor transmission line capability.
Detailed description of the invention
Fig. 1 is flow chart of the present invention；
Fig. 2 is specific embodiments of the present invention flow chart；
Fig. 3 is wind power output sample schematic diagram in the embodiment of the present invention；
Fig. 4 is photovoltaic power generation power output sample schematic diagram in the embodiment of the present invention；
Fig. 5 is load power output sample schematic diagram in the embodiment of the present invention；
Fig. 6 is that new energy abandons electric rate and Transmission Corridor transmission line capability relation schematic diagram in the embodiment of the present invention.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawing.For purpose, the technical solution for making the embodiment of the present invention
Clearer with advantage, following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out
It clearly and completely describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The optimization method (as shown in Figure 1) that the present invention relates to a kind of applied to new energy base Transmission Corridor transmission line capability,
This method comprehensively considers the synthetic relationship of new energy power producing characteristics, Transmission Corridor capacity and new energy digestion capability.It specifically includes
Following steps:
Step 1: the power output data statistics of new energy base；
Step 2: power grid time stimulatiom model construction；
Step 3: Transmission Corridor capacity optimization in new energy base calculates.
Below with reference to new energy base Transmission Corridor transmission line capability calculation flow chart, as shown in Fig. 2, to of the invention specific
Implementing procedure is described.
Step 1-1: new energy base historical data statistics.Go out force data according to new energy base history run year, point
Not Huo Qu wind-powered electricity generation, solar power generation go out force data, temporal resolution is 5min or 1h.
Step 1-2: new energy limited power reduction.It is rationed the power supply data according to the wind-powered electricity generation of historical record, solar power generation, to new
The energy goes out force data and carries out reduction of rationing the power supply, and obtains the theoretical power (horse-power) of generation of electricity by new energy.
Step 1-3: new energy power output data normalization.When by wind-powered electricity generation, solar power generation theoretical power (horse-power) data divided by correspondence
The installed capacity at quarter respectively obtains the normalization data of wind-powered electricity generation, solar power generation.New energy contributes normalization data can accurate table
Levy this area's new energy power producing characteristics.
Step 2-1: new energy base wind-powered electricity generation, solar power generation go out force modeling.About including wind-powered electricity generation, solar power generation power
Beam is shown in formula (1) and (2).In formula, Pw,nIt (t) is wind power of the new energy base n in t moment,For new energy base n
In the wind-powered electricity generation theoretical power (horse-power) of t moment；Ppv,nIt (t) is solar power generation power of the new energy base n in t moment,For new energy
Solar power generation theoretical power (horse-power) of the source base n in t moment.
Step 2-2: generation of electricity by new energy receiving end power network modeling.Receiving end power grid needs to comprehensively consider power balance, normal power supplies
The constraint conditions such as (thermoelectricity, water power) power output, normal power supplies Unit Commitment, fired power generating unit heat supply, power grid spinning reserve capacity.Specifically
Modeling method is as follows:
(1) power balance
Pall.n(t)+Pw,n(t)+Ppv,n(t)+Ln,m(t)=Pl(t) (3)
In formula, Pall.nIt (t) is the general power of all conventional power unit generated outputs of t moment, Ln,m(t) for new energy base n to
The transimission power of receiving end power grid m, PlIt (t) is the total electricity load of t moment.
(2) normal power supplies Unit Commitment
In formula, XjIt (t) is unit j in the operating status of t moment, " 1 " indicates in operating status, and " 0 " indicates to be not in
Operating status；YjIt (t) is unit j in the starting state of t moment, " 1 " indicates to be in starting state, and " 0 " indicates to be not in starting
State；ZjIt (t) is unit j in the shutdown status of t moment, " 1 " indicates to be in shutdown status, and " 0 " indicates to be not in shutdown status.
(3) normal power supplies are contributed
Xj(t)·Pj,min≤Pj(t)≤Pj,max·Xj(t) (5)
Pj(t+1)-Pj(t)≤ΔPj,up (6)
Pj(t)-Pj(t+1)≤ΔPj,down (7)
In formula, Pj,min、Pj,maxRespectively the power output lower limit of unit j and the power output upper limit, Δ Pj,up、ΔPj,downRespectively machine
Group j swashes the maximum value of ratio of slope maximum value and lower climbing rate.
(4) fired power generating unit heat supply
In formula, Pj,BY(t) it contributes for t moment back pressure type fired power generating unit,For thermal power plant unit coupled thermomechanics coefficient, Hj
It (t) is t moment heat demand；Pj,CQ(t) it contributes for t moment steam extraction type fired power generating unit.
(5) power grid spinning reserve capacity
In formula, J is the total number of units of operating unit, PPreAnd PNreThe respectively upper spinning reserve of power grid and lower spinning reserve.
Step 2-3: Transmission Corridor modeling
In formula,The respectively lower limit value and upper limit value of new energy base Transmission Corridor transmission line capability.It sets defeated
Electrical power reference direction are as follows: inflow region is positive direction, and outflow region is negative direction.
Step 2-4: Optimization Solution.The power grid time stimulatiom model that step 2-1 to 2-3 is established is optimized, it is excellent
The new energy of discontinuity surface sends out situation of rationing the power supply when changing each.Optimization aim is new energy consumption, sees formula (12).
In formula, T is to optimize total period, usually annual, and N is that new energy sends base quantity outside.
Step 3-1: setting calculating parameter.Calculating parameter includes that Transmission Corridor capacity, acceptable new energy rate of rationing the power supply are (pre-
Phase is horizontal).
Step 3-2: new energy base digestion capability calculates.The power grid time stimulatiom model established by step 2, to step
The parameter value of 3-1 setting optimizes calculating.
Step 3-3: optimum results comparison.It is expected rate of rationing the power supply when new energy consumption situation is lower than, reduces Transmission Corridor capacity,
New energy consumption situation is higher than expected rate of rationing the power supply, and increases Transmission Corridor capacity, the rate until the acceptable new energy of optimization is rationed the power supply
When Transmission Corridor capacity minimum value, the design capacity as new energy base Transmission Corridor.
The new energy base Transmission Corridor transmission line capability planing method proposed using this patent carries out case based on certain power grid
Analysis, optimization calculate new energy base Transmission Corridor transmission line capability.Case relevant parameter includes new energy base data and receiving end
Electric network data, detail parameters are as follows:
(1) new energy base data
New energy base data include wind-powered electricity generation, photovoltaic power generation power producing characteristics data and new energy installed capacity data, wind
Electricity, photovoltaic power generation power output sample data are annual 15 minutes any time serieses.By taking one week power output sample as an example, wind-powered electricity generation, light
It is as shown in Figure 3 and Figure 4 to lie prostrate generated output sample difference.
New energy installed capacity is growth of the data in view of new energy installation month by month, and new energy installed capacity is monthly quasi-
It is standby.Present case wind-powered electricity generation, Photovoltaic generation installed capacity will respectively reach 620MW and 3300MW in the end of the year, point moon installed capacity such as 1 institute of table
Show.
1 new energy of table point moon installed capacity (unit: MW)
| Month | Wind-powered electricity generation | Photovoltaic |
| January | 470 | 2650 |
| 2 months | 470 | 2750 |
| March | 470 | 2750 |
| April | 470 | 2900 |
| May | 520 | 2900 |
| June | 520 | 2900 |
| July | 520 | 3000 |
| August | 520 | 3100 |
| September | 520 | 3100 |
| October | 520 | 3200 |
| November | 620 | 3200 |
| December | 620 | 3300 |
(2) receiving end electric network data
For present case generation of electricity by new energy receiving end power grid based on Hydropower Unit, Hydropower Unit installed capacity is 5400MW, wherein
Single machine 300MW Hydropower Unit 5, single machine 320MW Hydropower Unit 4, single machine 340MW Hydropower Unit 3, single machine 400MW water power
Unit 4, Hydropower Unit flexible modulation ability is strong, and minimum technology power output is 0.Fired power generating unit installed capacity is 3785MW, wherein
Single machine 125MW fired power generating unit 5, single machine 135MW fired power generating unit 4, single machine 300MW fired power generating unit 2, single machine 350MW thermoelectricity
Unit 2, single machine 660MW fired power generating unit 2, fired power generating unit minimum technology power output are 50%.Present case receiving end network load year
Electricity is 59.81TWh, and load maximum value is 777MW, and by taking one week power output sample as an example, load power output sample is as shown in Figure 5.
(3) analysis of cases
Based on above data, calculating new energy base Transmission Corridor transmission line capability using proposition method of the present invention is respectively
When 900MW, 1100MW, 1300MW, 1500MW and 1700MW, new energy abandons electric rate and Transmission Corridor transmission line capability relationship, such as Fig. 6
It is shown.It is shown using the mentioned method results of measuring of the present invention, new energy abandoning electricity is respectively under above-mentioned section transmission line capability
1285GWh, 874GWh, 524GWh, 249GWh and 85GWh, new energy abandon electric rate be respectively 20.9%, 14.2%, 8.5%,
4.0% and 1.4%.If new energy base allows to abandon electric rate no more than 5%, Transmission Corridor transmission line capability needs reach
1450MW。
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Invention is explained in detail referring to above-described embodiment for pipe, it should be understood by those ordinary skilled in the art that: still
It can be with modifications or equivalent substitutions are made to specific embodiments of the invention, and without departing from any of spirit and scope of the invention
Modification or equivalent replacement, are intended to be within the scope of the claims of the invention.
Claims (13)
1. a kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability characterized by comprising
The power output data statistics of new energy base；
Go out force data building power grid time stimulatiom model according to the new energy base；
It is calculated according to the optimization that the power grid time stimulatiom model carries out new energy base Transmission Corridor capacity, obtains Transmission Corridor
The optimal value of capacity.
2. a kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability as described in claim 1, feature exist
In the new energy base power output data statistics includes:
It is right according to going out the wind-powered electricity generation of force data and historical record new energy base history run year and solar power generation is rationed the power supply data
New energy goes out force data and carries out reduction of rationing the power supply, and obtains the theoretical power (horse-power) of wind-powered electricity generation and solar power generation respectively；
By the theoretical power (horse-power) data of wind-powered electricity generation and solar power generation divided by the installed capacity at corresponding moment, wind-powered electricity generation and the sun are respectively obtained
The normalization data that can be generated electricity.
3. a kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability as described in claim 1, feature exist
In the building power grid time stimulatiom model includes:
Go out force data building new energy base wind-powered electricity generation and solar power generation power output model according to the new energy base；
Construct generation of electricity by new energy receiving end electric network model；
Construct Transmission Corridor model；
According to new energy base wind-powered electricity generation and solar power generation power output model, generation of electricity by new energy receiving end electric network model and Transmission Corridor mould
Type, to it is each when discontinuity surface new energy hair situation of rationing the power supply optimize.
4. a kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability as claimed in claim 3, feature exist
In new energy base wind-powered electricity generation and solar power generation power output model include: wind-powered electricity generation and solar power generation power constraint, such as following formula
It is shown:
Wherein, Pw,nIt (t) is wind power of the new energy base n in t moment；For new energy base n t moment wind-powered electricity generation
Theoretical power (horse-power)；Ppv,nIt (t) is solar power generation power of the new energy base n in t moment；It is new energy base n in t
The solar power generation theoretical power (horse-power) at quarter.
5. a kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability as claimed in claim 3, feature exist
In the generation of electricity by new energy receiving end electric network model includes:
Power balance constraint:
Pall.n(t)+Pw,n(t)+Ppv,n(t)+Ln,m(t)=Pl(t)
Wherein, Pall.nIt (t) is the general power of all conventional power unit generated outputs of t moment；Ln,mIt (t) is new energy base n to receiving end
The transimission power of power grid m；PlIt (t) is the total electricity load of t moment；
Normal power supplies Unit Commitment Constraint:
Wherein, XjIt (t) is operating status of the unit j in t moment；YjIt (t) is starting state of the unit j in t moment；ZjIt (t) is machine
Shutdown status of the group j in t moment；
Normal power supplies units limits:
Xj(t)·Pj,min≤Pj(t)≤Pj,max·Xj(t)
Pj(t+1)-Pj(t)≤ΔPj,up
Pj(t)-Pj(t+1)≤ΔPj,down
Wherein, Pj,minAnd Pj,maxRespectively the power output lower limit of unit j and the power output upper limit；ΔPj,upWith Δ Pj,downRespectively unit j
The maximum value of ratio of slope maximum value of swashing and lower climbing rate；
Fired power generating unit heat supply units limits:
Wherein, Pj,BY(t) it contributes for t moment back pressure type fired power generating unit；For thermal power plant unit coupled thermomechanics coefficient；HjIt (t) is t
Moment heat demand；Pj,CQ(t) it contributes for t moment steam extraction type fired power generating unit；
The constraint of power grid spinning reserve capacity:
Wherein, J is the total number of units of operating unit；PPreAnd PNreThe respectively upper spinning reserve of power grid and lower spinning reserve.
6. a kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability as claimed in claim 3, feature exist
In the Transmission Corridor model includes:
Ln,m(t)=- Lm,n(t)
Ln,n(t)=0
Wherein,WithThe respectively lower limit value and upper limit value of new energy base Transmission Corridor transmission line capability, Ln,mIt (t) is new
Transimission power of the Energy Base n to receiving end power grid m.
7. a kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability as claimed in claim 3, feature exist
In described model, generation of electricity by new energy receiving end electric network model and to be sent outside logical according to new energy base wind-powered electricity generation and solar power generation power output
Road model, to it is each when discontinuity surface new energy hair ration the power supply situation optimize include: new energy consumption be optimization aim, it is as follows
Shown in formula:
Wherein, T is to optimize total period；N is that new energy sends base quantity outside.
8. a kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability as described in claim 1, feature exist
In the optimization for carrying out new energy base Transmission Corridor capacity according to the power grid time stimulatiom model calculates, and is sent outside
The optimal value of channel capacity includes:
Calculating parameter is set, and the calculating parameter includes preset Transmission Corridor capacity and expected rate of rationing the power supply；
Based on the power grid time stimulatiom model, the parameter of the setting is optimized, Transmission Corridor capacity is calculated most
The figure of merit.
9. a kind of Method for optimized planning of new energy base Transmission Corridor transmission line capability as claimed in claim 8, feature exist
It is optimized in, the parameter to the setting and the optimal value of Transmission Corridor capacity is calculated includes:
It is expected rate of rationing the power supply when new energy consumption is lower than, then reduces the preset Transmission Corridor capacity；New energy consumption is high
In expected rate of rationing the power supply, then increase the preset Transmission Corridor capacity；
Until obtain acceptable new energy ration the power supply rate when Transmission Corridor capacity minimum value, the minimum value be Transmission Corridor hold
The optimal value of amount.
10. a kind of optimization planning device of new energy base Transmission Corridor transmission line capability, which is characterized in that described device includes:
Data acquisition module, for the power output data statistics of new energy base；
Model building module, for going out force data building power grid time stimulatiom model according to the new energy base；
Optimization module, based on the optimization according to power grid time stimulatiom model progress new energy base Transmission Corridor capacity
It calculates.
11. a kind of optimization planning device of new energy base Transmission Corridor transmission line capability as claimed in claim 10, feature
It is, the data acquisition module is used for,
It is right according to going out the wind-powered electricity generation of force data and historical record new energy base history run year and solar power generation is rationed the power supply data
New energy goes out force data and carries out reduction of rationing the power supply, and obtains the theoretical power (horse-power) of wind-powered electricity generation and solar power generation respectively；
By the theoretical power (horse-power) data of wind-powered electricity generation and solar power generation divided by the installed capacity at corresponding moment, wind-powered electricity generation and the sun are respectively obtained
The normalization data that can be generated electricity.
12. a kind of optimization planning device of new energy base Transmission Corridor transmission line capability as claimed in claim 10, feature
It is, the model building module includes:
New energy is contributed model submodule, for going out force data building new energy base wind-powered electricity generation and too according to the new energy base
Positive energy generated output model；
Receiving end electric network model submodule, for constructing generation of electricity by new energy receiving end electric network model；
Transmission Corridor model submodule, for constructing Transmission Corridor model；
Optimize submodule, for according to new energy base wind-powered electricity generation and solar power generation power output model, generation of electricity by new energy receiving end power grid
Model and Transmission Corridor model, to it is each when discontinuity surface new energy hair situation of rationing the power supply optimize.
13. a kind of optimization planning device of new energy base Transmission Corridor transmission line capability as claimed in claim 10, feature
It is, the optimization module includes:
Submodule is set, and for calculating parameter to be arranged, the calculating parameter includes preset Transmission Corridor capacity and expection
It rations the power supply rate；
Computational submodule optimizes the parameter of the setting and is calculated for being based on the power grid time stimulatiom model
The optimal value of Transmission Corridor capacity.
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| CN116683536A (en) * | 2023-06-12 | 2023-09-01 | 国网冀北电力有限公司电力科学研究院 | New energy base short-circuit capacity demand allocation method and device |
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