CN107959285A - A kind of optimization method, system and the device of the interregional transmission of electricity plan of hair a few days ago - Google Patents
A kind of optimization method, system and the device of the interregional transmission of electricity plan of hair a few days ago Download PDFInfo
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Abstract
The invention discloses a kind of optimization method, system and the device of the interregional transmission of electricity plan of hair a few days ago, method includes：According to the load prediction data in each region, region internal power balance and interregional electricity plan, to minimize region day power generation serial variance as optimization aim, the object function of the interregional transmission of electricity planning optimization model of hair a few days ago is established；Determine the constraints and model parameter of the interregional transmission of electricity planning optimization model of hair a few days ago.System establishes module and constraints and model parameter determining module including object function.Device includes memory and processor.The present invention is to minimize the variance of region day power generation sequence as optimization aim, so as to send the peak regulation pressure contributed and adjusted to alleviate feeding section by electricity by the interregional of minimum, and complementary optimization function of each region part throttle characteristics to feeding section peak regulation is given full play to so that interregional send is matched by electricity plan with feeding section peak regulation speed.It the composite can be widely applied to electric power system dispatching optimization field.
Description
Technical field
The present invention relates to electric power system dispatching to optimize field, especially a kind of optimization side of the interregional transmission of electricity plan of hair a few days ago
Method, system and device.
Background technology
Electric system is the complex dynamic systems of higher-dimension, strong nonlinearity, its operation stability is the head of power grid security production
Want problem.For a long time, power grid operational plan arrangement a few days ago is that dispatching of power netwoks department determines the power grid future method of operation, instructs electricity
The Main Basiss of power production, and develop checking united direction with static, transient security to operational plan.Reasonably a few days ago
Management and running plan is directly related to the safety and economic operation of power grid in the future.
It is interregional generate a few days ago transmission of electricity (sending by electricity) plan be the important composition portion of management and running a few days ago in the works
Point, it is of great significance to the complementation for playing each region electric power resource and load.At present, the interregional transmission of electricity plan of hair a few days ago
Establishment and Optimizing Flow it is as follows：Higher level's scheduling institution is manually worked out initial interregional send and is planned by electricity, regional power grid according to
What information and higher level issued in net send by electric planning generation schedule inside the province, and two-level scheduler mechanism carries out original plan afterwards
Optimization and Security Checking.The Optimizing Flow groundwork relies on manually and experience is, it is necessary to which more information exchange, is that one kind is first counted
The mode checked after drawing, and it is difficult to ensure that the optimum level of plans.The prioritization scheme is in layout plan generally with certain
Based on the load prediction data of a feeding section (such as Guangdong Province of south electric network), according to it is other respectively by electric region (such as
Guangxi province, Yunnan Province, Guizhou Province and Hainan Province of south electric network) electricity plan, first arrange it is interregional send it is bent by electricity plan
Line, peak regulation in the region by generating electricity based on voluntarily matching is adjusted in feeding section, the problem of it is primarily present following aspect：
(1) may because it is interregional send by electric accounting it is excessive cause it is interregional send to be contributed to adjust by electricity bear with feeding section
The tracking and matching deficiency of lotus pace of change, has aggravated the peak regulation pressure of feeding section, causes the tune repeatedly to generate electricity in feeding section
Section and unordered adjusting, result even in the peak regulation to generate electricity in feeding section, standby resources anxiety, regulations speed is difficult to full when serious
The needs of sufficient feeding section peak-frequency regulation.
(2) do not give full play to and respectively planned to match feeding section tune by electricity by the advantage of electric region part throttle characteristics, interregional send
Peak speed deficiency.For example, send water and electricity saving accounting in Yunnan in by electricity maximum between saving, and power is planned not fill a few days ago between existing net saves
Yunnan hydropower is waved in distribution and direct current sends the characteristics of governing speed is fast outside, causes to send by electricity plan matching Guangdong Province's peak regulation speed between province
Deficiency.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to：A kind of the excellent of interregional transmission of electricity plan of hair a few days ago is provided
Change method, system and device, to give full play to interregional send by electricity plan and each region part throttle characteristics to feeding section peak regulation
Complementary optimization function.
The first technical solution for being taken of the present invention is：
A kind of optimization method of the interregional transmission of electricity plan of hair a few days ago, comprises the following steps：
According to the load prediction data in each region, region internal power balance and interregional electricity plan, to minimize region
Day power generation serial variance is optimization aim, establishes the object function of the interregional transmission of electricity planning optimization model of hair a few days ago；
Determine the constraints and model parameter of the interregional transmission of electricity planning optimization model of hair a few days ago, the definite constraint bar
Part and model parameter include object function weight coefficient, loss factor, electricity deviation factor, dominant eigenvalues bound, region hair
Electric bound and regional generation climbing rate.
Further, each region includes Guangdong Province, Guangxi province, Yunnan Province, Guizhou Province and day factory Long Tan.
Further, the object function expression formula of the interregional transmission of electricity planning optimization model of hair a few days ago is：
Wherein, t is any time period in T, and T is 96 period collection in a few days, PGi,tProvinces and regions i is represented in time period t
Interior power generation daily planning, i be R in any provinces and regions, R={ Guangdong Province, Guangxi province, Yunnan Province, Guizhou Province },For provinces and regions i
The per day output of power generation, andwiFor provinces and regions i Generation Right coefficient factors, and wi=1/ (PLimax
)2, PLimaxFor the load prediction maximum a few days ago of provinces and regions i.
Further, this step of the constraints for determining the interregional transmission of electricity planning optimization model of hair a few days ago and model parameter
Suddenly, specifically include：
Determine the power-balance constraint of each provinces and regions；
Determine the power transmission of each provinces and regions with being constrained by electric equilibrium；
Determine sending by power consumption deviation constraint for each provinces and regions；
Determine the power generation bound constraint of each provinces and regions；
Determine the interconnection channel power constraint in province section；
Determine the power generation ramping rate constraints of each provinces and regions.
Further, the power-balance constraint of each provinces and regions is：Wherein, PTi,tAnd PLi,tRespectively provinces and regions i exists
Sending by electricity plan and predicted load a few days ago in time period t, R ' is the set of receiving end provinces and regions, and S is the set of sending end provinces and regions.
Further, the power transmission of each provinces and regions by electric equilibrium with being constrained to：Wherein, εjFor loss factor,
PTjtThe predicted load a few days ago for being provinces and regions j in time period t, PTitPlanned for provinces and regions i sending in time period t by electricity.
Further, sending for each provinces and regions is by power consumption deviation constraint： Wherein, η is electricity deviation factor, EiNFor provinces and regions
Between send by electricity plan electricity, PTitThe predicted load a few days ago for being provinces and regions i in time period t.
Further, the power generation bound of each provinces and regions is constrained to：Wherein,
PGiFor the power generation daily planning of provinces and regions i, PGiminAnd PGimaxRespectively the power generation lower limit of provinces and regions i and the power generation upper limit；The province section
Interconnection channel power is constrained to：Wherein, PTiFor sending by electricity plan electricity for provinces and regions i
Amount, PTimaxAnd PTiminRespectively province section is sent by electric maximum electricity and is sent by electric minimum amount of power；
The power generation ramping rate constraints of each provinces and regions are：Wherein,
PGi(t+1)And PGitRespectively provinces and regions i power generation daily plannings within the period (t+1) and in time period t,WithRespectively provinces and regions
The power generation creep speed upper limit and power generation creep speed lower limit of i.
The second technical solution for being taken of the present invention is：
A kind of optimization system of the interregional transmission of electricity plan of hair a few days ago, including：
Object function establishes module, is balanced for the load prediction data according to each region, region internal power and interregional
Electricity plan, to minimize region day power generation serial variance as optimization aim, establishes the interregional transmission of electricity planning optimization mould of hair a few days ago
The object function of type；
Constraints and model parameter determining module, for determining the constraint of the interregional transmission of electricity planning optimization model of hair a few days ago
Condition and model parameter, it is inclined that the definite constraints and model parameter include object function weight coefficient, loss factor, electricity
Poor coefficient, dominant eigenvalues bound, regional generation bound and regional generation climbing rate.
The 3rd technical solution taken of the present invention is：
A kind of optimization device of the interregional transmission of electricity plan of hair a few days ago, including：
Memory, for storing program；
Processor, is transmitted electricity for loading described program with performing a kind of interregional hair a few days ago as described in the first technical solution
The optimization method of plan.
The beneficial effects of the invention are as follows：The present invention a kind of optimization method, system and the dress of the interregional transmission of electricity plan of hair a few days ago
Put, according to the load prediction data in each region, region internal power balance and interregional electricity plan, to minimize region day power generation
Serial variance is optimization aim, establishes the object function of the interregional transmission of electricity planning optimization model of hair a few days ago, and then is determined corresponding
Constraints and model parameter, have considered the load prediction data, region internal power balance and interregional electricity in each region
Plan, by being returned interregional send by electricity output adjusting minimum as optimization aim using the variance for minimizing region day power generation sequence
For the optimization aim problem of a secondary variance, thus by it is minimum it is interregional send to be contributed to adjust by electricity alleviate feeding section
Peak regulation pressure, solve the problems, such as the adjusting repeatedly to generate electricity in feeding section and unordered adjusting, and considered each region
Load prediction data, given full play to complementary optimization function of each region part throttle characteristics to feeding section peak regulation so that region
Between send and matched by electricity plan with feeding section peak regulation speed.
Brief description of the drawings
Fig. 1 is a kind of step flow chart of the optimization method of the interregional transmission of electricity plan of hair a few days ago of the present invention；
Fig. 2 is a kind of overall structure block diagram of the optimization system of the interregional transmission of electricity plan of hair a few days ago of the present invention；
Fig. 3 is that the entirety of the embodiment of the present invention one realizes flow chart；
Comparative result figure before and after the optimization for Guangdong Province's generation schedule that Fig. 4 obtains for optimization method using the present invention；
Fig. 5 is comparative result figure before and after the optimization that the Guangdong Province that optimization method using the present invention obtains is planned by electricity；
Comparative result figure before and after the optimization for Yunnan Province's generation schedule that Fig. 6 obtains for optimization method using the present invention；
Fig. 7 is comparative result figure before and after the optimization that the Yunnan Province that optimization method using the present invention obtains is planned by electricity.
Embodiment
With reference to Fig. 1, a kind of optimization method of the interregional transmission of electricity plan of hair a few days ago, comprises the following steps：
According to the load prediction data in each region, region internal power balance and interregional electricity plan, to minimize region
Day power generation serial variance is optimization aim, establishes the object function of the interregional transmission of electricity planning optimization model of hair a few days ago；
Determine the constraints and model parameter of the interregional transmission of electricity planning optimization model of hair a few days ago, the definite constraint bar
Part and model parameter include object function weight coefficient, loss factor, electricity deviation factor, dominant eigenvalues bound, region hair
Electric bound and regional generation climbing rate.
The present invention has taken into full account the complementary characteristic of each region power supply and load, using the variance of minimum elelctrochemical power generation sequence as mesh
Mark, meter and hair transmission of electricity relevant constraint, establish this of the interregional transmission of electricity of hair a few days ago planning optimization model forefoot area optimization day
The quadratic programming model of hair transmission of electricity plan.The present invention is establishing the object function of the interregional transmission of electricity planning optimization model of hair a few days ago simultaneously
After determining corresponding constraints and model parameter, you can obtain complete the retouching of the interregional transmission of electricity planning optimization model of hair a few days ago
State, so as to complete to the interregional transmission of electricity planning optimization of hair a few days ago.
Be further used as preferred embodiment, each region include Guangdong Province, Guangxi province, Yunnan Province, Guizhou Province and
Its factory Long Tan.
Wherein, Guangxi province refers to the Guangxi region without Long Tan and natural bridge, and day factory Long Tan refers in particular to the Long Tan and day in Guangxi
Raw bridge zone domain.
It is further used as preferred embodiment, the object function table of the interregional transmission of electricity planning optimization model of hair a few days ago
It is up to formula：
Wherein, t is any time period in T, and T is 96 period collection in a few days, PGi,tProvinces and regions i is represented in time period t
Interior power generation daily planning, i be R in any provinces and regions, R={ Guangdong Province, Guangxi province, Yunnan Province, Guizhou Province },For provinces and regions i
The per day output of power generation, andwiFor provinces and regions i Generation Right coefficient factors, and wi=1/ (PLimax
)2, PLimaxFor the load prediction maximum a few days ago of provinces and regions i.
It is further used as preferred embodiment, the constraint bar for determining the interregional transmission of electricity planning optimization model of hair a few days ago
The step for part and model parameter, specifically include：
Determine the power-balance constraint of each provinces and regions；
Determine the power transmission of each provinces and regions with being constrained by electric equilibrium；
Determine sending by power consumption deviation constraint for each provinces and regions；
Determine the power generation bound constraint of each provinces and regions；
Determine the interconnection channel power constraint in province section；
Determine the power generation ramping rate constraints of each provinces and regions.
Preferred embodiment is further used as, the power-balance constraint of each provinces and regions is：Wherein, PTi,tAnd PLi,tRespectively provinces and regions i exists
Sending by electricity plan and predicted load a few days ago in time period t, R ' is the set of receiving end provinces and regions, and S is the set of sending end provinces and regions.
Wherein, R ' and S have collectively constituted set R.
Preferred embodiment is further used as, the power transmission of each provinces and regions by electric equilibrium with being constrained to：Wherein, εjFor loss factor,
PTjtThe predicted load a few days ago for being provinces and regions j in time period t, PTitPlanned for provinces and regions i sending in time period t by electricity.
Preferred embodiment is further used as, sending for each provinces and regions is by power consumption deviation constraint：
Wherein, η is electricity deviation factor, EiNSent for province section and planned electricity, P by electricityTitThe day preload for being provinces and regions i in time period t
Predicted value.
Preferred embodiment is further used as, the power generation bound of each provinces and regions is constrained to： Wherein, PGiFor the power generation daily planning of provinces and regions i, PGiminAnd PGimaxRespectively provinces and regions i's
Generate electricity lower limit and the power generation upper limit；
The interconnection channel power in the province section is constrained to：Wherein, PTiFor
Sending for provinces and regions i is planned electricity, P by electricityTimaxAnd PTiminRespectively province section is sent by electric maximum electricity and is sent by electric minimum amount of power；
The power generation ramping rate constraints of each provinces and regions are：Wherein,
PGi(t+1)And PGitRespectively provinces and regions i power generation daily plannings within the period (t+1) and in time period t,WithRespectively provinces and regions
The power generation creep speed upper limit and power generation creep speed lower limit of i.
With reference to Fig. 2, a kind of optimization system of the interregional transmission of electricity plan of hair a few days ago of the present invention, including：
Object function establishes module, is balanced for the load prediction data according to each region, region internal power and interregional
Electricity plan, to minimize region day power generation serial variance as optimization aim, establishes the interregional transmission of electricity planning optimization mould of hair a few days ago
The object function of type；
Constraints and model parameter determining module, for determining the constraint of the interregional transmission of electricity planning optimization model of hair a few days ago
Condition and model parameter, it is inclined that the definite constraints and model parameter include object function weight coefficient, loss factor, electricity
Poor coefficient, dominant eigenvalues bound, regional generation bound and regional generation climbing rate.
It is corresponding with the method for Fig. 1, a kind of optimization device of the interregional transmission of electricity plan of hair a few days ago of the present invention, including：
Memory, for storing program；
Processor, as shown in Figure 1 a kind of interregional the excellent of transmission of electricity plan is sent out for loading described program a few days ago to perform
Change method.
The present invention is further explained and illustrated with reference to Figure of description and specific embodiment.
Embodiment one
By taking south electric network as an example, the establishment of the current interregional transmission of electricity plan of hair a few days ago and prioritization scheme are in layout plan
Generally based on the load prediction data in Guangdong, the electricity plan of western electricity, first layout are sent according to Yunnan, Guizhou, day factory Long Tan
Go out between province to send by electric Plan Curve, in Guangdong Province peak regulation by generating electricity inside the province based on voluntarily matching is adjusted, it is netted save between send and accounted for by electricity
Guangdong electric power saving about 1/3, send between province contributed by electricity adjust with the tracking and matching of Guangdong load variations speed deficiency, result in Guangdong
The adjusting repeatedly and unordered adjusting to generate electricity inside the province, causing the economy of unit in Guangdong Province reduces.Meanwhile sent between province by electric medium cloud
Southern water and electricity saving accounting is maximum, and the existing interregional transmission of electricity plan of hair a few days ago does not give full play to Yunnan water and electricity saving and direct current sends adjusting outside
Fireballing feature, send between province and is planned to match Guangdong Province's peak regulation speed deficiency by electricity.Transmission of electricity plan is sent out a few days ago in order to solve region
The adjusting repeatedly and unordered regulation problem that unit generation is contributed in Chinese and Western electricity matching Guangdong peak regulation deficiency and Guangdong Province, the present embodiment
Using the optimization method of the present invention, it is proposed that a kind of generation schedule optimization method for minimizing region day power generation serial variance, such as
Shown in Fig. 3, this method specifically includes following steps：
S1. the interregional transmission of electricity planning optimization target of hair a few days ago for minimizing region day power generation serial variance is established；
S2. the constraints and model parameter of the interregional transmission of electricity planning optimization model of hair a few days ago are determined.
The step S1 consider Guangxi, Yunnan, Guizhou and Guangdong Province load prediction, inside the province power-balance and save between electricity
Gauge is drawn, using the variance for minimizing region day power generation sequence as optimization aim, arrange this four provinces and regions generated output plan and
Send between province and planned by electricity, and establish the object function of the interregional transmission of electricity planning optimization model of hair a few days ago, by four provinces and regions generated outputs
Adjust the optimization aim problem for minimizing and being classified as a secondary variance.
Wherein, the object function of the interregional transmission of electricity planning optimization model of hair a few days ago (minimizes region day power generation sequence side
Poor object function) be：In formula, T (can lead to in a few days 96 periods
Cross by one day 24 it is small when be divided into 96 periods and draw), PGi,tRepresent certain and save power generation daily planning,
Represent the per day output of certain provinces and regions power generation, wi=1/ (PLimax)2For each provinces and regions Generation Right coefficient (i.e. object function weight coefficient)
The factor, R={ Guangdong Province, Guangxi province, Yunnan Province, Guizhou Province }.
The constraints of the interregional transmission of electricity planning optimization model of hair a few days ago and model parameter specifically include in the step S2：
(1) each province's power-balance constraint
The present embodiment each province power-balance constraint represents the power-balance condition of each province, and expression is：Wherein, PTi,tAnd PLi,tRespectively send inside the province by
Electricity plan (it is negative by electricity just that power transmission, which is), provinces and regions load prediction a few days ago, R ' are the set of receiving end provinces and regions, and S is the collection of sending end provinces and regions
Close.R ' and S have collectively constituted set R, that is, have：R=R '+S.
(2) power transmission by electric equilibrium with being constrained
The equilibrium condition of the present embodiment power transmission and the exchange of electric power by electric equilibrium constraint representation each province, expression are：εjFor loss factor (west electricity
Eastern line sending loss rate εjIt is taken as 5%), PTjtFor provinces and regions load prediction a few days ago, PTitTo send inside the province, by electricity plan, (power transmission is just, by electricity
It is negative).
(3) each province is sent is constrained by power consumption
Send to be sent by power consumption constraint representation permission in each province of the present embodiment：
Wherein, η (is sent by electricity permission electricity deviation) for electricity deviation factor between saving, EiNSent between province by electricity plan electricity
Amount, PTitFor load prediction a few days ago inside the province.
(4) each province's power generation bound
The present embodiment each province power generation bound represents the generating capacity of each province, needs to meet：Wherein, PTiPlanned electricity, P by electricity for sending for provinces and regions iTimaxAnd PTiminRespectively save
Between send by electric maximum electricity and send by electric minimum amount of power.
(5) line passage constraint is got in touch between saving
The present embodiment gets in touch with line passage between saving and constrains the passway for transmitting electricity power constraint represented between province, and expression is：Wherein, PTiPlanned electricity, P by electricity for sending for provinces and regions iTimaxAnd PTiminRespectively save
Send by electric maximum electricity and send by electric minimum amount of power in section.
(6) each province's power generation ramping rate constraints
The present embodiment each province power generation ramping rate constraints be：Wherein,
PGi(t+1)And PGitRespectively provinces and regions i power generation daily plannings within the period (t+1) and in time period t,WithRespectively provinces and regions i
The power generation creep speed upper limit and power generation creep speed lower limit.
By taking south electric network as an example, its comprehensive theory line loss per unit ε that transfers electricity from the west to the eastjAbout 5.48%, interregional send is permitted by electricity
Perhaps deviation η is generally 2%.
Fig. 4, Fig. 5, Fig. 6 and Fig. 7 are the example knot that the interregional transmission of electricity plan optimization method of hair a few days ago of the application present invention is drawn
Fruit comparison diagram, including Guangdong Province's optimization generation schedule and Plan Curve figure a few days ago shown in Fig. 4, Guangdong Province's optimization shown in Fig. 5
Entered plan and entered Plan Curve figure a few days ago, Yunnan Province's optimization generation schedule and Plan Curve figure a few days ago, Fig. 7 shown in Fig. 6
Shown Yunnan Province's optimization sends plan outside and sends Plan Curve figure outside a few days ago.Example knot shown in analysis chart 4, Fig. 5, Fig. 6 and Fig. 7
Fruit understands haing the following advantages for the interregional hair transmission of electricity plan optimization method a few days ago of the present invention：
1) from Fig. 4, Fig. 5, Fig. 6 and Fig. 7, serial variance is generated electricity as optimization aim to minimize region day, after optimization
Guangdong Province generation schedule to adjust number less, 09:00 (the 36th period) and 16:00 (the 64th period) the two
Period, power generation, which does not occur, in Guangdong Province demodulates peak and goes out force phenomenon, and at noon 11：15-12:15 Guangdong loads plunge the time
Section, Guangdong Province's power generation adjusts to contribute downwards is reduced to 3400MW by 4600MW, effectively alleviates the peak regulation pressure of Guangdong thermoelectricity.
12:30-15:45 period Guangdong preferably have matched the characteristic of the afternoon load in Guangdong by the lifting for entering western electricity, it is wide after optimization
Generation schedule is almost in line operation inside the province in east.Plan Curve can see after the optimization of observation Fig. 7 sending ends Yunnan Province, pass through lifting
The quantity of electricity on Yunnan Province peak and quantity of electricity when forcing down low ebb, it is possible to achieve Yunnan Province is sent outside to rise suddenly in Guangdong Province's load
Plunge the balance matching in stage, and the generation schedulecurve in smooth Guangdong Province eases up demodulation peak pressure power.
2) in Fig. 4, before method using the present invention optimization, south electric network Guangdong Province a few days ago the peak value of generation schedule, valley,
Peak-valley difference and standard deviation are respectively：50894MW, 33697MW, 17197MW and 6096.4MW.After optimization method of the present invention,
Peak value, valley, peak-valley difference and the standard deviation of Tu4Zhong south electric networks Guangdong Province generation schedule be respectively：49800MW、 33686MW、
16114MW and 4893.5MW.That is, the peak value of Guangdong Province's generation schedule reduces about 1000MW, valley is slightly lifted, peak
Paddy difference and standard deviation (unified for unit, to be converted into standard deviation) reduce more than 1000MW.This illustrates side using the present invention
After method, the thermoelectricity in Guangdong Province can be caused spare and peak regulation demand reduces, peak regulation pressure reduces, and economics of power generation is improved.
From above-mentioned content, the present invention a kind of optimization method, system and the device of the interregional transmission of electricity plan of hair a few days ago
Using each region power supply and the complementary characteristic of load, using the variance of minimum elelctrochemical power generation sequence as target, meter and hair transmission of electricity are related about
Beam condition, establishes the quadratic programming model for optimizing day forefoot area hair transmission of electricity plan, and interregional send is adjusted minimum by electricity output
Change the optimization aim problem of a secondary variance of being classified as, thus by it is minimum it is interregional send to be contributed to adjust by electricity alleviate power transmission
The peak regulation pressure in region, has considered the load prediction data in each region, solve region send out a few days ago transmission of electricity in the works respectively by
The adjusting repeatedly and unordered regulation problem that unit generation is contributed in electric Region Matching feeding section peak regulation deficiency and feeding section, fill
Region part throttle characteristics and the interregional complementary optimization function sent by electricity to feeding section peak regulation have been waved in distribution.
Above is the preferable of the present invention is implemented to be illustrated, but the present invention is not limited to the embodiment, and it is ripe
A variety of equivalent variations or replacement can also be made on the premise of without prejudice to spirit of the invention by knowing those skilled in the art, this
Equivalent deformation or replacement are all contained in the application claim limited range a bit.
Claims (10)
- A kind of 1. optimization method of the interregional transmission of electricity plan of hair a few days ago, it is characterised in that：Comprise the following steps：According to the load prediction data in each region, region internal power balance and interregional electricity plan, to minimize region day hair Electric array variance is optimization aim, establishes the object function of the interregional transmission of electricity planning optimization model of hair a few days ago；Determine it is interregional a few days ago hair transmission of electricity planning optimization model constraints and model parameter, the definite constraints and Model parameter is including on object function weight coefficient, loss factor, electricity deviation factor, dominant eigenvalues bound, regional generation Lower limit and regional generation climbing rate.
- A kind of 2. optimization method of interregional transmission of electricity plan of hair a few days ago according to claim 1, it is characterised in that：It is described each Region includes Guangdong Province, Guangxi province, Yunnan Province, Guizhou Province and day factory Long Tan.
- A kind of 3. optimization method of interregional transmission of electricity plan of hair a few days ago according to claim 2, it is characterised in that：The area The object function expression formula of the planning optimization model of hair transmission of electricity a few days ago is between domain：<mrow> <mi>min</mi> <mi> </mi> <mi>f</mi> <mrow> <mo>(</mo> <msub> <mi>P</mi> <mrow> <mi>G</mi> <mi>i</mi> <mo>,</mo> <mi>t</mi> </mrow> </msub> <mo>)</mo> </mrow> <mo>=</mo> <munder> <mo>&Sigma;</mo> <mrow> <mi>i</mi> <mo>&Element;</mo> <mi>R</mi> </mrow> </munder> <munder> <mo>&Sigma;</mo> <mrow> <mi>t</mi> <mo>&Element;</mo> <mi>T</mi> </mrow> </munder> <msub> <mi>w</mi> <mi>i</mi> </msub> <msup> <mrow> <mo>(</mo> <msub> <mi>P</mi> <mrow> <mi>G</mi> <mi>i</mi> <mo>,</mo> <mi>t</mi> </mrow> </msub> <mo>-</mo> <msub> <mover> <mi>P</mi> <mo>&OverBar;</mo> </mover> <mrow> <mi>G</mi> <mi>i</mi> </mrow> </msub> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>,</mo> </mrow>Wherein, t is any time period in T, and T is 96 period collection in a few days, PGi,tRepresent hairs of the provinces and regions i in time period t Electric daily planning, i be R in any provinces and regions, R={ Guangdong Province, Guangxi province, Yunnan Province, Guizhou Province },For the day of provinces and regions i power generations Average output, andwiFor provinces and regions i Generation Right coefficient factors, and wi=1/ (PLimax)2, PLimaxTo save The load prediction maximum a few days ago of area i.
- A kind of 4. optimization method of interregional transmission of electricity plan of hair a few days ago according to claim 3, it is characterised in that：It is described true The step for constraints and model parameter of the fixed interregional transmission of electricity planning optimization model of hair a few days ago, specifically include：Determine the power-balance constraint of each provinces and regions；Determine the power transmission of each provinces and regions with being constrained by electric equilibrium；Determine sending by power consumption deviation constraint for each provinces and regions；Determine the power generation bound constraint of each provinces and regions；Determine the interconnection channel power constraint in province section；Determine the power generation ramping rate constraints of each provinces and regions.
- A kind of 5. optimization method of interregional transmission of electricity plan of hair a few days ago according to claim 4, it is characterised in that：It is described each The power-balance constraint of provinces and regions is：PGi,t-PTi,t-PLi,t=0,T ∈ T, wherein, PTi,tAnd PLi,tRespectively Being provinces and regions i, sending by electricity plan and predicted load a few days ago, R ' in time period t is the set of receiving end provinces and regions, and S is sending end provinces and regions Set.
- A kind of 6. optimization method of interregional transmission of electricity plan of hair a few days ago according to claim 4, it is characterised in that：It is described each The power transmission of provinces and regions by electric equilibrium with being constrained to：Wherein, εjFor loss factor, PTjtThe predicted load a few days ago for being provinces and regions j in time period t, PTitPlanned for provinces and regions i sending in time period t by electricity.
- A kind of 7. optimization method of interregional transmission of electricity plan of hair a few days ago according to claim 4, it is characterised in that：It is described each Sending for provinces and regions be by power consumption deviation constraint： Wherein, η is electricity deviation factor, EiNFor provinces and regions Between send by electricity plan electricity, PTitThe predicted load a few days ago for being provinces and regions i in time period t.
- A kind of 8. optimization method of interregional transmission of electricity plan of hair a few days ago according to claim 4, it is characterised in that：It is described each The power generation bound of provinces and regions is constrained to：PGimin≤PGi≤PGimax,Wherein, PGiFor the power generation daily planning of provinces and regions i, PGimin And PGimaxRespectively the power generation lower limit of provinces and regions i and the power generation upper limit；The interconnection channel power in the province section is constrained to：PTimin≤PTi≤PTimax,Wherein, PTiFor sending for provinces and regions i Planned electricity, P by electricityTimaxAnd PTiminRespectively province section is sent by electric maximum electricity and is sent by electric minimum amount of power；The power generation ramping rate constraints of each provinces and regions are：Wherein, PGi(t+1)And PGitRespectively provinces and regions i power generation daily plannings within the period (t+1) and in time period t,WithRespectively provinces and regions i The power generation creep speed upper limit and power generation creep speed lower limit.
- A kind of 9. optimization system of the interregional transmission of electricity plan of hair a few days ago, it is characterised in that：Including：Object function establishes module, for the load prediction data according to each region, region internal power balance and interregional electricity Plan, to minimize region day power generation serial variance as optimization aim, establishes the interregional transmission of electricity planning optimization model of hair a few days ago Object function；Constraints and model parameter determining module, for determining the constraints of the interregional transmission of electricity planning optimization model of hair a few days ago And model parameter, the definite constraints and model parameter include object function weight coefficient, loss factor, electricity deviation system Number, dominant eigenvalues bound, regional generation bound and regional generation climbing rate.
- A kind of 10. optimization device of the interregional transmission of electricity plan of hair a few days ago, it is characterised in that：Including：Memory, for storing program；Processor, sends out defeated a few days ago to perform for loading described program as claim 1-8 any one of them one kind is interregional The optimization method of electricity plan.
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