CN109726894A - Ensure the new energy active command calculation method of spot exchange and medium-term and long-term electricity - Google Patents
Ensure the new energy active command calculation method of spot exchange and medium-term and long-term electricity Download PDFInfo
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Abstract
The invention discloses a kind of new energy active command calculation methods for ensureing spot exchange and medium-term and long-term electricity, belong to operation and control of electric power system technical field.For including interim spot exchange, basic guarantee electricity, the grid-connected active real-time control in new energy station of the complexity electricity target such as medium-term and long-term electricity transaction, the invention proposes be two stages solution by the active power output Command Resolution of new energy station, first stage considers that power grid receives ability, station performance indicator, the composite factors such as sensitivity and interim stock applications, for the interim stock application reply amount of each station optimal scheme, when second stage solution station finally instructs, using interim spot exchange electric power calculated on last stage as instruction lower limit constraint, and long-term electricity schedule index in being introduced into objective function, and interim spot exchange electricity is removed from generated energy, long-term electricity part in not influencing, the fairness of marketing is effectively ensured.
Description
Technical field
The present invention relates to a kind of new energy station real power control instructions two for ensureing interim spot exchange and medium-term and long-term electricity
Stage calculation method belongs to operation and control of electric power system technical field.
Background technique
Currently, deepening constantly with Power Market Structure in recent years and system, interim spot market transaction has become each
The important way of the ground promotion transregional consumption of new energy.Although long-term electricity transaction has been provided with corresponding long in new energy participation
Between electricity mechanism of exchange and regulation principle under scale, but also lack corresponding processing strategie, it is interim without preferably realizing
The coordination that a variety of regulations such as spot exchange, medium and long-term transaction and protection purchase require, interim spot exchange promote electricity market
Regulation difficulty under environment.Power output plan for a long time and interim stock apply for that two kinds of electricity ingredients not only contribute to electric power city in coordination
The balance of field, is more advantageous to the promotion of new energy consumption level.
With the rapid development of new energy, the construction of power market is deepening continuously, and is considering extra-high voltage transaction
When, the regulation and control object of conventional new energy real power control method is usually medium-term and long-term electricity transaction, for the interim existing of appearance
Goods electricity application, patent " the active real-time control method of meter and medium and long-term transaction and interim spot exchange constraint " application number
(201810245441.6) it proposes the transaction electricity index of performance by each power plant of real-time statistics, and is held according to transaction electricity
The each power plant of row index real-time control it is grid-connected active, fair Distribution Indexes are then carried out to each power plant, are come maximum
Complete to limit trading program electricity.But the patent does not account for interim spot exchange application and the coordination control of medium-term and long-term plans
Problem processed refines the equilibrium of supply and demand control of electricity market not enough.
This patent is assigned as priority principle with interim spot exchange amount, then carries out power output to medium and long-term transaction target and refers to
Enable distribution, and the factors such as estimated performance index, regulation performance index and economic and environment-friendly index for considering new energy station, Yi Ji electricity
Safety and stability constraint, peak regulation constraint, power plant control plan and the constraint of grid power transmission channel that net operation needs to meet etc.,
It is scheduled the amendment of plan, to meet the needs of Spot electricity market.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, in order to which interim spot trading volume transaction application can be responded
Demand, the long-term electricity that can take into account new energy station power output again are fair, and the present invention provides a kind of guarantee spot exchange and medium-term and long-term
The new energy active command calculation method of electricity.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
Basic principle of the invention is: when not considering interim spot trading volume transaction application, new energy station is grid-connected to be had
The Optimized model of function power control is exactly to consider electricity net safety stable, peak regulation constraint, power plant plan, transmission channel constraint etc.
Under it is required that, realize that new energy power output maximizes the purpose of consumption, and take into account economic and environment-friendly factor.If necessary to consider interim stock
When electricity transaction application, need through unit output situation, conventional load forecast demand, interim spot exchange application, power grid about
Four aspect of beam and electricity online quotation, is two parts by the active power output Command Resolution of new energy station, first part is this
The interim of distribution that stand applies for reply amount from stock；Second part is the active power output that station is directed to medium-term and long-term electricity plan, will be optimized
Model is calculated by two stage linear programming, and the optimal solution for then calculating two stages is added, and obtains that station is final to be had
Function power output instruction.
Specifically, a kind of new energy active command calculation method ensureing spot exchange and medium-term and long-term electricity, including such as
Lower step:
A kind of new energy active command calculation method ensureing spot exchange and medium-term and long-term electricity, includes the following steps:
Step 1: setting current time as t0If current t0Moment is the electric network active control moment, enters step 2；Otherwise continue
It waits, until current time t0The moment is controlled for electric network active；
Step 2: by t0The set that moment participates in the new energy station of power output Plan rescheduling is denoted as A, and new energy is removed in power grid
The set of conventional power unit except the station of source is denoted as B；Definition electricity calculating cycle is T, and j-th of electricity calculating cycle of note is
[tw,j, tw,j+1], wherein tw,j+1=tw,j+ T, tw,jFor the starting point of j-th of electricity calculating cycle, tw,j+1For j-th of voltameter
Calculate the terminating point in period；By i-th of new energy station in A, long-term electricity progress examines long-term electricity target in the period in
Value is denoted as Wp,i, the 1st electricity having set calculate period start time tw,1Period start time t is calculated to j-th of electricityw,j
Generated energy be denoted asThe 1st electricity set calculates period start time tw,1It is risen to j-th of electricity calculating cycle
Begin moment tw,jThe interim spot exchange electricity completed is denoted asBy the medium-term and long-term electricity of i-th of new energy station in A
The amount progress examination period is denoted as Tp,i, i-th of new energy station is calculated from the 1st voltameter set by formula (1)
Calculate period start time tw,1Period start time t is calculated to j-th of electricityw,jMedium-term and long-term electricity schedule index
The estimated performance index β of new energy station is calculated by calculation formula (2)i；New energy is calculated by calculation formula (3)
The regulation performance index γ of source stationi, subsequently into step 3；
Step 3: being directed to t0Moment there are interim stock electric power application but the station do not given an written reply, is asked using linear programming method
The Optimized model that formula (4) indicate is solved, the interim stock application reply value of each new energy station is calculated, if can obtain optimal
Solution, the then foundation calculated as second stage instruction, subsequently into step 4；
Step 4: the majorized function indicated by solution formula (5) calculates each power generation in epicycle control moment A and B
The grid-connected real power control of factory instructs, subsequently into step 5；
Step 5: the grid-connected real power control instruction of resulting new energy station will be calculated be handed down to corresponding new energy station and hold
Then row counts [tw,j, tw,j+1] the medium-term and long-term generated energy and interim spot exchange electricity of i-th of new energy station in the period,
Such as formula (6), (7), and update i-th of new energy station by the end of jth wheel electricity calculate the end cycle moment it is medium-term and long-term
Electricity, iterative formula such as formula (8), (9) is completed in generated energy and interim spot exchange.
Preferably, the formula (1), (2), (3) are as follows:
Wherein, To,iThe 1st electricity to have set calculates period start time tw,1It is originated to j-th of electricity calculating cycle
Moment tw,jTime；Tp,iFor the medium-term and long-term electricity assessment period；
Wherein, MiFor away from t0It is grid-connected in the free generating dutation section of grid-connected active power in the setting period of moment recently to have
The sampling of data point sum of the prediction curve of function power, Ppre,i,k、Pi,t,kAnd Pi,cRespectively i-th of k-th of new energy station number
According to the grid-connected active power predicted value of sample point, grid-connected active power actual value and booting capacity；NiFor away from t0Moment is nearest to be set
The sampling of data point sum of the prediction curve of grid-connected active power in grid-connected active power restricted time section in fixed cycle,
P 'i,t,k、Pi,t,kAnd Pi,cRespectively i-th of new energy station k-th of sampling of data point grid-connected active command value, grid-connected have
Function power actual value and booting capacity.
Preferably, the formula (4) is as follows:
Wherein, A is the set of new energy station；B is the set of conventional power unit；N is interconnection quantity；Δ P 'i,1For higher level
Interim stock application reply instruction value of the scheduling institution to i-th of new energy station in A；βiFor the pre- of i-th new energy station
Survey performance indicator, γiFor the regulation performance index of i-th of new energy station, λiFor the economic and environment-friendly finger of i-th of new energy station
Mark；ΔPd,iFor the interim stock applications that i-th of new energy station superior scheduling institution is submitted, P 'pre,iFor i-th of new energy
Predicted value of the source station in subsequent time active power output, PaccFor this interim total transaction electricity of stock of higher level's scheduling institution reply
Power；S1,j,iIt is the interim variable quantity instructed from stock to the active po wer sensitivity of section j；S2,j,iFor i-th of conventional power unit power output in B
Change the active po wer sensitivity to section j, Pg,iFor the current active power output value of i-th of conventional power unit, P 'g,iFor i-th of conventional machine
The power output instruction value of group subsequent time；S3,j,iActive po wer sensitivity of the power to section j, P are sent out for i-th of interconnectionn,iIt is i-th
A interconnection sends out the current power value of power, P 'n,iThe performance number in subsequent time of power is sent out for i-th of interconnection；L
For the set of load bus in power grid, S4,j,iIt is load variations to the active po wer sensitivity of section j, Pl,iIt is negative for the i-th node in power grid
The active actual value of lotus, P 'l,iFor the active predicted value of the i-th node load in power grid；Ptl,jAnd Ptl,j,maxRespectively section
Active power actual value and safety and stability limit.
Preferably, the formula (5) is as follows:
Wherein, Pi' is that the active power output of i-th of new energy station in subsequent time A always instructs, P 'pre,iFor in lower a period of time
Carve the active power output predicted value of i-th of new energy station in A；B is t0The Network Loss Rate of moment power grid；Wherein, Pg,i,maxAnd Pg,i,min
The maximum technology power output and minimum technology power output of i-th of conventional power unit in respectively B, v is the maximum allowable adjusting of conventional power unit
Speed, Δ t are the real power control period；S2,j,iFor active po wer sensitivity of i-th of conventional power unit power output variation to section j, P in Bg,i
For the current active power output value of i-th of conventional power unit, P 'g,iFor the power output instruction value of i-th of conventional power unit subsequent time；S3,j,i
Active po wer sensitivity of the power to section j, P are sent out for i-th of interconnectionn,iThe current power of power is sent out for i-th of interconnection
Value, P 'n,iThe performance number in subsequent time of power is sent out for i-th of interconnection；L is the set of load bus in power grid, S4,j,i
It is load variations to the active po wer sensitivity of section j, Pl,iFor the active actual value of the i-th node load in power grid, P 'l,iFor power grid
In the i-th node load active predicted value；S5,j,iFor i-th of new energy station gross capability variable quantity to the active of section j
Sensitivity.Ptl,jAnd Ptl,j,maxThe respectively active power actual value and safety and stability limit of section.
Preferably, the formula (6) is as follows:
Preferably, the formula (7) is as follows:
Preferably, the formula (8) is as follows:
Preferably, the formula (9) is as follows:
The utility model has the advantages that the new energy active command calculating side provided by the invention for ensureing spot exchange and medium-term and long-term electricity
Method, compared with the effect of power generation dispatching project management technique scheme at this stage, the present invention is in the grid-connected wattful power in new energy station
Two stage solution strategies are set in the optimization of rate real-time control, first calculates interim spot exchange part, then calculate total instruction, passes through
Using interim spot exchange electric power as new energy station power output lower limit, fully ensure that interim spot exchange is executed.
In addition, the interim spot exchange electricity part in new energy power station generated energy is deducted and then is examined wherein
Long-term electricity target schedule has ensured the fairness that new energy station is traded in the examination period in electricity, promotes new energy
Station participates in the enthusiasm of interim spot market.In addition new energy is considered in interim stock reply stage and real-time control stage
Estimated performance index, regulation performance index and the economic and environment-friendly index of source station promote new energy station to promote self-technique water
Gentle performance of control.
Detailed description of the invention
Fig. 1 is the flow diagram of method of the invention.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1, a kind of new energy active command calculation method for ensureing spot exchange and medium-term and long-term electricity, including such as
Lower step:
Step 1: setting current time as t0If current t0Moment is the electric network active control moment, enters step 2；Otherwise continue
It waits, until current time t0The moment is controlled for electric network active；
Step 2: by t0The set that moment participates in the new energy station of power output Plan rescheduling is denoted as A, and new energy is removed in power grid
The set of conventional power unit except the station of source is denoted as B.Definition electricity calculating cycle is T, and j-th of electricity calculating cycle of note is
[tw,j, tw,j+1], wherein tw,j+1=tw,j+ T, tw,jFor the starting point of j-th of electricity calculating cycle, tw,j+1For j-th of voltameter
Calculate the terminating point in period；By i-th of new energy station in A, long-term electricity progress examines long-term electricity target in the period in
Value is denoted as Wp,i, the 1st electricity having set calculate period start time tw,1Period start time t is calculated to j-th of electricityw,j
Generated energy be denoted asThe 1st electricity set calculates period start time tw,1It is risen to j-th of electricity calculating cycle
Begin moment tw,jThe interim spot exchange electricity completed is denoted asBy the medium-term and long-term electricity of i-th of new energy station in A
The amount progress examination period is denoted as Tp,i, i-th of new energy station is calculated from the 1st voltameter set by formula (1)
Calculate period start time tw,1Period start time t is calculated to j-th of electricityw,jMedium-term and long-term electricity schedule index
The estimated performance index β of new energy station is calculated by calculation formula (2)i；New energy is calculated by calculation formula (3)
The regulation performance index γ of source stationi, subsequently into step 3；
Wherein, To,iThe 1st electricity to have set calculates period start time tw,1It is originated to j-th of electricity calculating cycle
Moment tw,jTime；Tp,iFor the medium-term and long-term electricity assessment period.
Wherein, MiFor away from t0It is grid-connected in the free generating dutation section of grid-connected active power in the setting period of moment recently to have
The sampling of data point sum of the prediction curve of function power, Ppre,i,k、Pi,t,kAnd Pi,cRespectively i-th of k-th of new energy station number
According to the grid-connected active power predicted value of sample point, grid-connected active power actual value and booting capacity；NiFor away from t0Moment is nearest to be set
The sampling of data point sum of the prediction curve of grid-connected active power in grid-connected active power restricted time section in fixed cycle,
P 'i,t,k、Pi,t,kAnd Pi,cRespectively i-th of new energy station k-th of sampling of data point grid-connected active command value, grid-connected have
Function power actual value and booting capacity.
Step 3: being directed to t0Moment there are interim stock electric power application but the station do not given an written reply, is asked using linear programming method
The Optimized model that formula (4) indicate is solved, the interim stock application reply value of each new energy station is calculated, if can obtain optimal
Solution, the then foundation calculated as second stage instruction, subsequently into step 4；
Wherein, A is the set of new energy station；B is the set of conventional power unit；N is interconnection quantity；Δ P 'i,1For higher level
Interim stock application reply instruction value of the scheduling institution to i-th of new energy station in A.βiFor the pre- of i-th new energy station
Survey performance indicator, γiFor the regulation performance index of i-th of new energy station, λiFor the economic and environment-friendly finger of i-th of new energy station
Mark.ΔPd,iFor the interim stock applications that i-th of new energy station superior scheduling institution is submitted, P 'pre,iFor i-th of new energy
Predicted value of the source station in subsequent time active power output, PaccFor this interim total transaction electricity of stock of higher level's scheduling institution reply
Power；S1,j,iIt is the interim variable quantity instructed from stock to the active po wer sensitivity of section j；S2,j,iFor i-th of conventional power unit power output in B
Change the active po wer sensitivity to section j, Pg,iFor the current active power output value of i-th of conventional power unit, P 'g,iFor i-th of conventional machine
The power output instruction value of group subsequent time；S3,j,iActive po wer sensitivity of the power to section j, P are sent out for i-th of interconnectionn,iIt is i-th
A interconnection sends out the current power value of power, P 'n,iThe performance number in subsequent time of power is sent out for i-th of interconnection；L
For the set of load bus in power grid, S4,j,iIt is load variations to the active po wer sensitivity of section j, Pl,iIt is negative for the i-th node in power grid
The active actual value of lotus, P 'l,iFor the active predicted value of the i-th node load in power grid；Ptl,jAnd Ptl,j,maxRespectively section
Active power actual value and safety and stability limit.
Step 4: the majorized function indicated by solution formula (5) calculates each power generation in epicycle control moment A and B
The grid-connected real power control of factory instructs, subsequently into step 5；
Wherein, Pi' is that the active power output of i-th of new energy station in subsequent time A always instructs, P 'pre,iFor in lower a period of time
Carve the active power output predicted value of i-th of new energy station in A；B is t0The Network Loss Rate of moment power grid；Wherein, Pg,i,maxAnd Pg,i,min
The maximum technology power output and minimum technology power output of i-th of conventional power unit in respectively B, v is the maximum allowable adjusting of conventional power unit
Speed, Δ t are the real power control period；
S2,j,iFor active po wer sensitivity of i-th of conventional power unit power output variation to section j, P in Bg,iFor i-th of conventional power unit
Current active power output value, P 'g,iFor the power output instruction value of i-th of conventional power unit subsequent time；S3,j,iIt is sent for i-th of interconnection
Active po wer sensitivity of the power to section j out, Pn,iThe current power value of power, P ' are sent out for i-th of interconnectionn,iIt is i-th
The performance number in subsequent time of winding thread submitting power；L is the set of load bus in power grid, S4,j,iIt is load variations to section
The active po wer sensitivity of j, Pl,iFor the active actual value of the i-th node load in power grid, P 'l,iFor the i-th node load in power grid
Active predicted value；S5,j,iFor i-th of new energy station gross capability variable quantity to the active po wer sensitivity of section j.Ptl,jWith
Ptl,j,maxThe respectively active power actual value and safety and stability limit of section.
Step 5: the grid-connected real power control instruction of resulting new energy station will be calculated be handed down to corresponding new energy station and hold
Then row counts [tw,j, tw,j+1] the medium-term and long-term generated energy and interim spot exchange electricity of i-th of new energy station in the period,
Such as formula (6), (7), and update i-th of new energy station by the end of jth wheel electricity calculate the end cycle moment it is medium-term and long-term
Electricity is completed in generated energy and interim spot exchange, and iterative formula such as formula (8), (9) terminate this method.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of new energy active command calculation method for ensureing spot exchange and medium-term and long-term electricity, it is characterised in that: including such as
Lower step:
Step 1: setting current time as t0If current t0Moment is the electric network active control moment, enters step 2；Otherwise continue
To until current time t0The moment is controlled for electric network active；
Step 2: by t0The set that moment participates in the new energy station of power output Plan rescheduling is denoted as A, removes new energy station in power grid
Except the set of conventional power unit be denoted as B；Definition electricity calculating cycle is T, remembers that j-th of electricity calculating cycle is [tw,j,
tw,j+1], wherein tw,j+1=tw,j+ T, tw,jFor the starting point of j-th of electricity calculating cycle, tw,j+1For j-th of electricity calculating cycle
Terminating point；By i-th of new energy station in A, long-term electricity progress examines long-term electricity target value in the period to be denoted as in
Wp,i, the 1st electricity having set calculate period start time tw,1Period start time t is calculated to j-th of electricityw,jHair
Electricity is denoted asThe 1st electricity set calculates period start time tw,1Period start time is calculated to j-th of electricity
tw,jThe interim spot exchange electricity completed is denoted asBy the medium-term and long-term electricity progress of i-th of new energy station in A
The examination period is denoted as Tp,i, i-th of new energy station is calculated from the 1st electricity calculating cycle set by formula (1)
Initial time tw,1Period start time t is calculated to j-th of electricityw,jMedium-term and long-term electricity schedule indexPass through meter
Calculate the estimated performance index β that new energy station is calculated in formula (2)i；New energy station is calculated by calculation formula (3)
Regulation performance index γi, subsequently into step 3；
Step 3: being directed to t0Moment, there are interim stock electric power application but the stations do not given an written reply, were solved using linear programming method public
The Optimized model that formula (4) indicates calculates the interim stock application reply value of each new energy station, if optimal solution can be obtained,
The foundation then calculated as second stage instruction, subsequently into step 4；
Step 4: the majorized function indicated by solution formula (5) calculates each power plant in epicycle control moment A and B
Grid-connected real power control instruction, subsequently into step 5；
Step 5: the grid-connected real power control instruction in resulting new energy station will be calculated and be handed down to corresponding new energy station execution, so
[t is counted afterwardsw,j, tw,j+1] the medium-term and long-term generated energy and interim spot exchange electricity of i-th of new energy station in the period, it is such as public
Formula (6), (7), and update i-th of new energy station and generated electricity by the end of jth wheel electricity calculating the medium-term and long-term of end cycle moment
Electricity, iterative formula such as formula (8), (9) is completed in amount and interim spot exchange.
2. the new energy active command calculation method according to claim 1 for ensureing spot exchange and medium-term and long-term electricity,
Be characterized in that: the formula (1), (2), (3) are as follows:
Wherein, To,iThe 1st electricity to have set calculates period start time tw,1Period start time is calculated to j-th of electricity
tw,jTime；Tp,iFor the medium-term and long-term electricity assessment period；
Wherein, MiFor away from t0Grid-connected wattful power in the free generating dutation section of grid-connected active power in the setting period of moment recently
The sampling of data point sum of the prediction curve of rate, Ppre,i,k、Pi,t,kAnd Pi,cRespectively i-th of k-th of new energy station data is taken out
Grid-connected active power predicted value, grid-connected active power actual value and the booting capacity of sampling point；NiFor away from t0Moment it is nearest setting week
The sampling of data point sum of the prediction curve of grid-connected active power, P in grid-connected active power restricted time section in phasei,'t,k、
Pi,t,kAnd Pi,cGrid-connected active command value, grid-connected active power of respectively i-th of the new energy station in k-th of sampling of data point
Actual value and booting capacity.
3. the new energy active command calculation method according to claim 1 for ensureing spot exchange and medium-term and long-term electricity,
Be characterized in that: the formula (4) is as follows:
Wherein, A is the set of new energy station；B is the set of conventional power unit；N is interconnection quantity；Δ P 'i,1For higher level's scheduling
Interim stock application reply instruction value of the mechanism to i-th of new energy station in A；βiFor the predictability of i-th of new energy station
Energy index, γiFor the regulation performance index of i-th of new energy station, λiFor the economic and environment-friendly index of i-th of new energy station；Δ
Pd,iFor the interim stock applications that i-th of new energy station superior scheduling institution is submitted, P 'pre,iFor i-th of new energy station
In the predicted value of subsequent time active power output, PaccFor this interim total trading electricity of stock of higher level's scheduling institution reply；S1,j,i
It is the interim variable quantity instructed from stock to the active po wer sensitivity of section j；S2,j,iIt is i-th of conventional power unit power output variation in B to disconnected
The active po wer sensitivity of face j, Pg,iFor the current active power output value of i-th of conventional power unit, P 'g,iFor a period of time under i-th of conventional power unit
The power output instruction value at quarter；S3,j,iActive po wer sensitivity of the power to section j, P are sent out for i-th of interconnectionn,iFor i-th of interconnection
Send out the current power value of power, P 'n,iThe performance number in subsequent time of power is sent out for i-th of interconnection；L is in power grid
The set of load bus, S4,j,iIt is load variations to the active po wer sensitivity of section j, Pl,iHave for i-th node load in power grid
Function actual value, P 'l,iFor the active predicted value of the i-th node load in power grid；Ptl,jAnd Ptl,j,maxThe respectively wattful power of section
Rate actual value and safety and stability limit.
4. the new energy active command calculation method according to claim 1 for ensureing spot exchange and medium-term and long-term electricity,
Be characterized in that: the formula (5) is as follows:
Wherein, Pi' is that the active power output of i-th of new energy station in subsequent time A always instructs, P 'pre,iFor in subsequent time A
The active power output predicted value of i-th of new energy station；B is t0The Network Loss Rate of moment power grid；Wherein, Pg,i,maxAnd Pg,i,minRespectively
For the maximum technology power output and minimum technology power output of i-th of conventional power unit in B, v is the maximum allowable adjustment speed of conventional power unit,
Δ t is the real power control period；S2,j,iFor active po wer sensitivity of i-th of conventional power unit power output variation to section j, P in Bg,iIt is i-th
The current active power output value of a conventional power unit, P 'g,iFor the power output instruction value of i-th of conventional power unit subsequent time；S3,j,iIt is i-th
A interconnection sends out active po wer sensitivity of the power to section j, Pn,iThe current power value of power, P ' are sent out for i-th of interconnectionn,i
The performance number in subsequent time of power is sent out for i-th of interconnection；L is the set of load bus in power grid, S4,j,iFor load
Change the active po wer sensitivity to section j, Pl,iFor the active actual value of the i-th node load in power grid, Pl',iIt is in power grid i-th
The active predicted value of node load；S5,j,iFor i-th of new energy station gross capability variable quantity to the active sensitive of section j
Degree.Ptl,jAnd Ptl,j,maxThe respectively active power actual value and safety and stability limit of section.
5. the new energy active command calculation method according to claim 1 for ensureing spot exchange and medium-term and long-term electricity,
Be characterized in that: the formula (6) is as follows:
6. the new energy active command calculation method according to claim 1 for ensureing spot exchange and medium-term and long-term electricity,
Be characterized in that: the formula (7) is as follows:
7. the new energy active command calculation method according to claim 1 for ensureing spot exchange and medium-term and long-term electricity,
Be characterized in that: the formula (8) is as follows:
8. the new energy active command calculation method according to claim 1 for ensureing spot exchange and medium-term and long-term electricity,
Be characterized in that: the formula (9) is as follows:
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| CN111835039A (en) * | 2020-07-08 | 2020-10-27 | 国网宁夏电力有限公司 | Cross-region increment spot goods access-oriented new energy active closed-loop control method and device |
| CN113469410A (en) * | 2021-05-26 | 2021-10-01 | 国电南瑞科技股份有限公司 | Power grid maximum consumption capability online calculation method and device considering new energy uncertainty |
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