CN108960642A - A kind of new energy power plant dynamic aggregation method and system - Google Patents

A kind of new energy power plant dynamic aggregation method and system Download PDF

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CN108960642A
CN108960642A CN201810749437.3A CN201810749437A CN108960642A CN 108960642 A CN108960642 A CN 108960642A CN 201810749437 A CN201810749437 A CN 201810749437A CN 108960642 A CN108960642 A CN 108960642A
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new energy
energy power
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peak
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CN108960642B (en
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李凤婷
周识远
陶仁峰
何世恩
丁坤
李津
张珍珍
高鹏飞
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State Grid Gansu Electric Power Co Ltd
Xinjiang University
Wind Power Technology Center of Gansu Electric Power Co Ltd
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Xinjiang University
Wind Power Technology Center of Gansu Electric Power Co Ltd
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Abstract

The invention discloses a kind of new energy power plant dynamic aggregation method and system.This method comprises: new energy power plant to be divided into the new energy power plant group of different periods according to new energy power plant region network load；Calculate the expense of each new energy power plant group new-energy grid-connected consumption frequency modulation being led to and peak regulation ancillary service within each period；The frequency modulation and the minimum target of peak regulation ancillary service cost being led to new-energy grid-connected consumption, to new energy, power plant polymerize, and obtains several new energy power plant groups, and new energy power plant is made to participate in the energy scheduling of power grid with trunking mode.New energy power plant dynamic aggregation method and system provided by the invention, the existing single new energy power plant of power grid is independently participated in into passive type response scheduling mode and switchs to the active response scheduling mode of the power grid energy that the power supply group for considering mutually to help between power supply participates in, the difficulty and complexity of the scheduling of generation of electricity by new energy access system energy can be reduced, while increasing each new energy power plant and participating in power grid energy scheduling probability.

Description

A kind of new energy power plant dynamic aggregation method and system
Technical field
The present invention relates to generation of electricity by new energy and its grid-connected fields, more particularly to a kind of dynamic aggregation side of new energy power plant Method.
Background technique
In recent years, by the different types such as distributed generation resource, energy storage device, controllable burden, electric car distributed energy into Emerging technology scheme-virtual plant (virtual powerplant, VPP) technology of row polymerization is by more and more new energy Power generation and its concern of interconnection technology domain expert and scholar.Although the technical solution can effectively be promoted distributed power generation and External function and effect, but its potentiality pole for being widely used in the consumption of China's new energy large-scale grid connection are also emphasized in net consumption Be limited: on the one hand, virtual plant skill upgrading distributed generation grid-connected is dissolved mainly by means of distributed generation resource itself, energy storage Device, controllable burden, coordinated operation and control even between electric car, and for as the new energy such as Xinjiang, Gansu height It permeates for power grid, energy storage device, controllable burden and electric car are often scarce resource；On the other hand, virtual plant technology New-energy grid-connected consumption mainly electricity generation grid-connecting form in a distributed manner is promoted, and for as the new energy Thief zone such as Xinjiang, Gansu Power grid, the new energy such as wind-powered electricity generation, photovoltaic power plant is often to concentrate grid-connected form to occur.Therefore, traditional virtual power plant technology is difficult It is promoted with directly applying to new energy Thief zone region wind-powered electricity generation and grid-connected digestion capability.
Summary of the invention
The object of the present invention is to provide a kind of new energy power plant dynamic aggregation method and system, and power grid is existing single new The passive type response scheduling mode that energy power plant independently participates in is converted into the power grid energy that the power supply group for considering mutually to help between power supply participates in The active response scheduling mode in source can reduce the difficulty and complexity of the scheduling of generation of electricity by new energy access system energy, increase simultaneously Each new energy power plant is added to participate in power grid energy scheduling probability.
To achieve the above object, the present invention provides following schemes:
A kind of new energy power plant dynamic aggregation method, which comprises
New energy power plant is divided into the new energy power plant of different periods according to new energy power plant region network load Group；
Calculate each new energy power plant group frequency modulation that new-energy grid-connected consumption is led within each period and peak regulation ancillary service Expense；
The frequency modulation and the minimum target of peak regulation ancillary service cost being led to new-energy grid-connected consumption, to new energy electricity Factory is polymerize, several new energy power plant group is obtained, and new energy power plant is made to participate in the energy scheduling of power grid with trunking mode.
Optionally, the new energy power plant of the different periods includes that load valley period, load usual period and load are high The peak period.
Optionally, described to calculate each new energy power plant group new-energy grid-connected consumption is led within each period frequency modulation and tune The expense of peak ancillary service, specifically includes:
It determines the auxiliary expenses of the positive peak regulation of load valley period each new energy power plant group and demodulates the auxiliary expenses at peak；
It determines the auxiliary expenses of load peak period each positive peak regulation of new energy power plant group and demodulates the auxiliary expenses at peak；
Determining load valley period, usual period and peak period each new energy power plant group, grid-connected to dissolve the frequency modulation being led to auxiliary Help service fee.
Optionally, the frequency modulation being led to and the minimum target of peak regulation ancillary service cost are dissolved with the new-energy grid-connected, it is right New energy power plant is polymerize, and obtains several new energy power plant group, new energy power plant is made to participate in the energy of power grid with trunking mode Amount scheduling, specifically includes:
With the grid-connected minimum target for dissolving the frequency modulation and peak regulation ancillary service that are led to of new energy power plant, using intelligent algorithm The polymerization methods for solving day part new energy power plant obtain the new energy power plant group of day part；
In day part, dispatched using the energy that the corresponding new energy power plant group of day part carries out power grid.
Optionally, the auxiliary expenses and anti-tune peak of the positive peak regulation of each new energy power plant group of the determining load valley period Auxiliary expenses specifically includes:
Determine whether load valley period each new energy power plant group is positive peak regulation, if so, new according to the load valley period The positive power output of peak regulation period of energy power plant group and the price of positive peak regulation, each new energy power plant group of calculated load low-valley interval is positive to be adjusted The auxiliary expenses at peak；
Determine whether load valley period each new energy power plant group is to demodulate peak, if so, new according to the load valley period Energy power plant group demodulates the power output of peak period and demodulates the price at peak, and each new energy power plant group of calculated load low-valley interval demodulates The auxiliary expenses at peak.
Optionally, the auxiliary expenses and anti-tune peak of the positive peak regulation of each new energy power plant group of the determining load peak period Auxiliary expenses specifically includes:
Determine whether load peak period each new energy power plant group is positive peak regulation, if so, new according to the load peak period The positive power output of peak regulation period of energy power plant group and the price of positive peak regulation, calculated load peak period each new energy power plant group is positive to be adjusted The auxiliary expenses at peak；
Determine whether load peak period each new energy power plant group is to demodulate peak, if so, new according to the load peak period Energy power plant group demodulates the power output of peak period and demodulates the price at peak, and calculated load peak period, each new energy power plant group demodulated The auxiliary expenses at peak.
Optionally, the determining load valley period, the grid-connected consumption of each new energy power plant group of usual period and peak period The frequency modulation ancillary service cost being led to, specifically includes:
Load valley period each new energy is determined according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Source power plant group's frequency modulation ancillary service price, each new energy power plant group frequency modulation ancillary service cost of calculated load low-valley interval；
Load usual period each new energy is determined according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Source power plant group's frequency modulation ancillary service price, calculated load usual period each new energy power plant group frequency modulation ancillary service cost；
Load peak period each new energy is determined according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Source power plant group's frequency modulation ancillary service price, calculated load peak period each new energy power plant group frequency modulation ancillary service cost.
A kind of new energy power plant dynamic aggregation system, the system comprises:
Time segments division module, for new energy power plant to be divided into difference according to new energy power plant region network load The new energy power plant group of period；
Expense computing module dissolves the tune being led to for calculating each new energy power plant group new-energy grid-connected within each period The expense of frequency and peak regulation ancillary service；
Aggregation module, frequency modulation and the minimum mesh of peak regulation ancillary service cost for being led to new-energy grid-connected consumption Mark, to new energy, power plant polymerize, and obtains several new energy power plant group, new energy power plant is made to participate in power grid with trunking mode Energy scheduling.
Optionally, the expense computing module, specifically includes:
The positive peak regulation expense computing unit of low-valley interval, for determining the positive peak regulation of load valley period each new energy power plant group Auxiliary expenses；
Low-valley interval demodulates peak expense computing unit, for determining the anti-tune peak of load valley period each new energy power plant group Auxiliary expenses；
Peak period positive peak regulation expense computing unit, for determining the positive peak regulation of load peak period each new energy power plant group Auxiliary expenses；
Peak period demodulates peak expense computing unit, for determining the anti-tune peak of load valley period each new energy power plant group Auxiliary expenses；
Low-valley interval frequency modulation expense computing unit, for determining that each grid-connected consumption of new energy power plant group of load valley period is drawn The frequency modulation ancillary service cost of cause.
Usual period frequency modulation expense computing unit, for determining what each grid-connected consumption of new energy power plant group of usual period was led to Frequency modulation ancillary service cost.
Peak period frequency modulation expense computing unit, for determining what peak period each grid-connected consumption of new energy power plant group was led to Frequency modulation ancillary service cost.
Optionally, the aggregation module, specifically includes:
Polymerized unit, for the grid-connected minimum mesh for dissolving the frequency modulation and peak regulation ancillary service that are led to of new energy power plant group Mark solves the polymerization methods of day part new energy power plant using intelligent algorithm, obtains the new energy power plant group of day part；
Energy scheduling unit, in day part, the corresponding new energy power plant group to carry out power grid using day part Energy scheduling.
The specific embodiment provided according to the present invention, the invention discloses following technical effects: one kind provided by the invention New energy power plant dynamic aggregation method, when new energy power plant being divided into different according to new energy power plant region network load The new energy power plant group of section；It calculates each new energy power plant group new-energy grid-connected within each period and dissolves the frequency modulation and peak regulation being led to The expense of ancillary service；The frequency modulation and the minimum target of peak regulation ancillary service cost being led to new-energy grid-connected consumption, it is right New energy power plant is polymerize, and obtains several new energy power plant group, new energy power plant is made to participate in the energy of power grid with trunking mode Amount scheduling.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the flow chart of new energy of embodiment of the present invention power plant dynamic aggregation method；
Fig. 2 is the structure chart of new energy of embodiment of the present invention power plant dynamic aggregation system；
Fig. 3 is that new energy of embodiment of the present invention power plant's different periods divide schematic diagram.
Specific embodiment
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 clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of new energy power plant dynamic aggregation method and system, and power grid is existing single new The passive type response scheduling mode that energy power plant independently participates in is converted into the power grid energy that the power supply group for considering mutually to help between power supply participates in The active response scheduling mode in source can reduce the difficulty and complexity of the scheduling of generation of electricity by new energy access system energy, increase simultaneously Each new energy power plant is added to participate in power grid energy scheduling probability.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.
Fig. 1 is the flow chart of new energy of embodiment of the present invention power plant dynamic aggregation method, as shown in Figure 1, the present invention provides A kind of new energy power plant dynamic aggregation method and step it is specific as follows:
Step 101: new energy power plant being divided into the new of different periods according to new energy power plant region network load Energy power plant group；
Step 102: calculating each new energy power plant group new-energy grid-connected within each period and dissolve the frequency modulation and peak regulation being led to The expense of ancillary service；
Step 103: the frequency modulation and the minimum target of peak regulation ancillary service cost being led to new-energy grid-connected consumption, it is right New energy power plant is polymerize, and obtains several new energy power plant group, new energy power plant is made to participate in the energy of power grid with trunking mode Amount scheduling.
Wherein, step 101 specifically includes: the new energy power plant group of the different periods includes load valley period, load Usual period and load peak period.
Step 102 specifically includes:
The load valley period polymerize the resulting comprehensive power output of new energy power plant group and positive peak regulation is presented and demodulates peak Judgment method are as follows:
The determination method that positive peak regulation is presented in the comprehensive power output of new energy power plant group is determined by formula (1):
In formula, PRe, dg, ps+ ,-With Pre,dg,ps+,+New energy power plant group's power output of positive peak regulation is presented in respectively comprehensive power output Negative sense fluctuates accumulated value and positive fluctuation accumulated value, λdg,ps+For multiple between the two, value is greater than 1, fluctuates accumulated value meter in negative sense During calculation, when positive fluctuation occurs in new energy power plant group's power output, undulating value makees 0 processing, i.e., only calculates negative sense fluctuation It is cumulative；And in forward direction fluctuation accumulated value calculating process, when negative sense fluctuation occurs in new energy power plant group, undulating value is made 0 processing only calculates the cumulative of positive fluctuation.Work as Pre,dg,ps+,-Greater than λdg.ps+·Pre,dG, ps+ ,+When, then determine load valley Period new energy power plant is in positive peak regulation feature, then according to the power output of load valley period new energy power plant positive peak regulation period and The price of positive peak regulation, the auxiliary expenses of each positive peak regulation of new energy power plant of calculated load low-valley interval；
The judgement that anti-tune peak is presented in the comprehensive power output of new energy power plant group is determined by formula (2):
In formula, Pre,dg,ps-,+With Pre,dg,ps-,-The new energy power plant group's power output for demodulating peak is presented in respectively comprehensive power output Forward direction fluctuation accumulated value and negative sense fluctuate accumulated value, λdg,ps-For multiple between the two, value is greater than 1.It is cumulative in forward direction fluctuation It is worth in calculating process, when negative sense fluctuation occurs in new energy power plant group, undulating value makees 0 processing, i.e., only calculates forward wave Dynamic is cumulative；And in reversely fluctuation accumulated value calculating process, when there is positive fluctuation in new energy power plant group's power output, fluctuation Value makees 0 processing, i.e., only calculates the cumulative of negative sense fluctuation.Work as Pre,dg,ps-,+Greater than λdg.ps-·PRe, dg, ps- ,-When, then determine load Low-valley interval new energy power plant, which is in, demodulates peak feature, then the power output of peak period is demodulated according to load valley period new energy power plant And the price at peak is demodulated, each new energy power plant of calculated load low-valley interval demodulates the auxiliary expenses at peak.
The load peak period polymerize the resulting comprehensive power output of new energy power plant group and positive peak regulation is presented and demodulates peak Judgment method are as follows:
The judgement that positive peak regulation is presented in the comprehensive power output of new energy power plant group is determined by formula (3):
In formula, Pre,gf,ps+,-With Pre,gf,ps+,+New energy power plant group's power output of positive peak regulation is presented in respectively comprehensive power output Negative sense fluctuates accumulated value and positive fluctuation accumulated value, λgf,ps+For multiple between the two, value is greater than 1.It is cumulative in forward direction fluctuation It is worth in calculating process, when negative sense fluctuation occurs in new energy power plant group, undulating value makees 0 processing, i.e., only calculates forward wave Dynamic is cumulative；And in reversely fluctuation accumulated value calculating process, when there is positive fluctuation in new energy power plant group's power output, fluctuation Value makees 0 processing, i.e., only calculates the cumulative of negative sense fluctuation.Work as Pre,gf,ps+,+Greater than λgf.ps+·Pre,gf,ps+,-When, then determine load Peak period new energy power plant is in positive peak regulation feature, then according to the power output of load peak period new energy power plant positive peak regulation period And the price of positive peak regulation, the auxiliary expenses of calculated load peak period each positive peak regulation of new energy power plant；
The judgement that anti-tune peak is presented in the comprehensive power output of new energy power plant group is determined by formula (4):
In formula, Pre,gf,ps-,+With Pre,gf,ps-,-The new energy power plant group's power output for demodulating peak is presented in respectively comprehensive power output Forward direction fluctuation accumulated value and negative sense fluctuate accumulated value, λgf,ps-For multiple between the two, value is greater than 1.It is cumulative in forward direction fluctuation It is worth in calculating process, when reversed fluctuation occurs in new energy power plant group's power output, undulating value makees 0 processing, i.e., only calculates forward wave Dynamic is cumulative；And in negative sense fluctuation accumulated value calculating process, when there is positive fluctuation in new energy power plant group's power output, fluctuation Value makees 0 processing, i.e., only calculates the cumulative of negative sense fluctuation.Work as Pre,gf,ps-,-Greater than λgf.ps-·Pre,gf,ps-,+When, then determine load Peak period new energy power plant is in positive peak regulation feature, then the power output of peak period is demodulated according to load peak period new energy power plant And the price at peak is demodulated, calculated load peak period, each new energy power plant demodulated the auxiliary expenses at peak.
The determining load valley period, usual period and peak period each new energy power plant group are grid-connected to dissolve the tune being led to Frequency ancillary service cost, specifically includes:
The price for the frequency modulation ancillary service that load valley period, usual period and the consumption of peak period new-energy grid-connected are led to Situation is averagely fluctuated depending on polymerizeing the resulting comprehensive power output of new energy power plant group, measure is as follows:
The load valley period polymerize resulting comprehensive power output feature between positive peak regulation and demodulates the new energy power plant between peak The measure such as formula (5) that the power output of group averagely fluctuates:
In formula, Δ TdgFor the load low-valley interval duration, Δ t indicates that new energy power plant group power output undulate quantity calculates the time Interval；round(ΔTdg/ Δ t) is indicated to Δ Tdg/ Δ t numerical value round, pre,fm,dg,i,ΔtIt (r) is load valley Period comprehensive power output feature is between positive peak regulation and demodulates r-th of interval Δ t that i-th of new energy power plant group between peak contributes Undulate quantity, fluSum, dg, iFor the mean value of new energy power plant group power output undulate quantity, SFlu, dg, i, lowWith SFlu, dg, i, uppRespectively should The lower limit and the upper limit of new energy power plant group power output undulate quantity mean value, the two parameter value reference load low-valley interval power grid frequency modulation are auxiliary Help service price.Determine that the load valley period is each new according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Energy power plant frequency modulation ancillary service price, each new energy power plant frequency modulation ancillary service cost of calculated load low-valley interval；
The load usual period polymerize the measure such as formula (6) that the power output of resulting new energy power plant group averagely fluctuates:
In formula, Δ TpcFor the usual window duration of load, Δ t indicates that new energy power plant group power output undulate quantity calculates the time Interval；round(ΔTpc/ Δ t) is indicated to Δ Tpc/ Δ t numerical value round, pRe, fm, pc, i, Δ t(r) when usual for load The undulate quantity at r-th of interval Δ t of i-th of new energy power plant group's power output of section, flusum,pc,iGo out Reeb for new energy power plant group The mean value of momentum, SFlu, pc, i, lowWith SFlu, pc, i, uppRespectively the new energy power plant group power output undulate quantity mean value lower limit with it is upper Limit, the usual period power grid frequency modulation ancillary service price of the value reference load of the two parameter.It is electric according to resulting new energy is polymerize The comprehensive power output of factory group averagely fluctuation situation determines load usual period each new energy power plant frequency modulation ancillary service price, calculated load Each new energy power plant frequency modulation ancillary service cost of usual period；
The load peak period polymerize resulting comprehensive power output feature between positive peak regulation and demodulates the new energy power plant between peak The measure such as formula (7) that the power output of group averagely fluctuates:
In formula, Δ TgfFor load duration peak period, Δ t indicates that new energy power plant group power output undulate quantity calculates the time Interval；round(ΔTgf/ Δ t) is indicated to Δ Tgf/ Δ t numerical value round, pre,fm,gf,i,Δt(r) be load peak when The wave at r-th of interval Δ t of i-th new energy power plant group power output of the comprehensive power output feature of section between positive peak regulation and anti-tune peak Momentum, flusum,gf,iFor the mean value of new energy power plant group power output undulate quantity, SFlu, gf, i, lowWith Sflu,gf,i,uppRespectively this is new The lower limit and the upper limit of energy power plant group power output undulate quantity mean value, the value reference load peak period power grid frequency modulation of the two parameter are auxiliary Help service price.Determine that the load peak period is each new according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Energy power plant frequency modulation ancillary service price, calculated load peak period each new energy power plant frequency modulation ancillary service cost.
It is described to calculate each new energy power plant frequency modulation that new-energy grid-connected consumption is led within each period and peak regulation auxiliary clothes The expense of business, specifically includes:
In the load valley period, the frequency modulation and peak regulation ancillary service that new-energy grid-connected consumption is led to are calculated using formula (8) Expense is as follows:
In formula, tdg,initWith Δ TdgRespectively at the beginning of the load valley period with the duration；pdg,ps+、fdg,ps+With pre,dg,ps+It (t) is respectively the grid-connected peak regulation auxiliary being led to of new energy power plant group for polymerizeing resulting comprehensive power output and positive peak regulation being presented Price, expense and the t moment power generating value of service；pdg,ps-、fdg,ps-With pre,dg,ps-It (t) is respectively to polymerize resulting comprehensive power output Price, expense and the t moment power generating value for demodulating the grid-connected peak regulation ancillary service being led to of new energy power plant group at peak is presented；hfm,dgWith fdg,fmIt is the resulting comprehensive feature of contributing of polymerization between positive peak regulation and demodulates new energy power plant group's total number between peak and be somebody's turn to do The sum of the expense of the grid-connected frequency modulation ancillary service being led to of class new energy power plant group；pfm,dg,iWith pre,fm,dg,iIt (t) is respectively polymerization institute The comprehensive power output feature obtained is between positive peak regulation and the grid-connected frequency modulation ancillary service being led to of i-th of new energy power plant group for demodulating peak Price and t moment power generating value, fdgIndicate that the grid-connected peak regulation being led to that dissolves of each new energy power plant group of low-valley interval takes with frequency modulation auxiliary The summation of business expense.
In the load usual period, the frequency modulation and peak regulation ancillary service that new-energy grid-connected consumption is led to are calculated using formula (9) Expense is as follows:
In formula, tpc,initWith Δ TpcRespectively at the beginning of the load usual period with the duration；hpcIndicate the period It polymerize the total number of resulting new energy power plant group；fpc,i、pfm,pc,iWith pre,fm,pc,iIt (t) is respectively that period polymerization is resulting Expense, price and the t moment power generating value of i-th of grid-connected frequency modulation ancillary service being led to of new energy power plant group, fpcWhen indicating usual The grid-connected summation for dissolving the peak regulation and frequency modulation ancillary service cost that are led to of Duan Ge new energy power plant group.
In load peak period (including peak period I and peak period II), new-energy grid-connected is calculated using formula (10) The frequency modulation and peak regulation ancillary service cost being led to are dissolved, as follows:
In formula, tgf,initWith Δ TgfRespectively at the beginning of the load peak period with the duration；pgf,ps+、fgf,ps+With pre,gf,ps+It (t) is respectively the grid-connected peak regulation auxiliary being led to of new energy power plant group for polymerizeing resulting comprehensive power output and positive peak regulation being presented Service price, expense and t moment power generating value；pgf,ps-、fgf,ps-With pre,gf,ps-It (t) is respectively to polymerize resulting comprehensive power output to be in Now demodulate price, expense and the t moment power generating value of the grid-connected peak regulation ancillary service being led to of new energy power plant group at peak；hfm,gfWith fgf,fmRespectively polymerize resulting comprehensive power output feature between positive peak regulation and demodulate new energy power plant group's total number between peak with Grid-connected the sum of the frequency modulation ancillary service cost being led to of such new energy power plant group；pfm,gf,i、fgf,fm,iWith pre,gf,fm,i(t) respectively To polymerize resulting comprehensive power output feature between positive peak regulation and demodulating the grid-connected tune being led to of i-th of new energy power plant group between peak Price, expense and the t moment power generating value of frequency ancillary service, fgfIndicate what peak period each grid-connected consumption of new energy power plant group was led to The summation of peak regulation and frequency modulation ancillary service cost.
Step 103 specifically includes:
In the load valley period, with the quasi- new energy power plant group's serial number variable (variable-value being divided into of each new energy power plant Positive integer, and it is less than or equal to the total number of new energy power plant), the frequency modulation being led to new-energy grid-connected consumption and peak regulation ancillary service Network minimal is target, and using intelligent algorithm solving result, objective function is as follows:
minfdg=fdg,ps++fdg,ps-+fdg,fm
In the load usual period, with the quasi- new energy power plant group's serial number variable (variable-value being divided into of each new energy power plant Positive integer, and it is less than or equal to the total number of new energy power plant), the frequency modulation ancillary service cost being led to is dissolved most with new-energy grid-connected Low is target, and using intelligent algorithm solving result, objective function is as follows:
The load peak period, with the quasi- new energy power plant group's serial number variable being divided into of each new energy power plant, (variable-value is just Integer, and it is less than or equal to the total number of new energy power plant), the frequency modulation and peak regulation ancillary service expense being led to new-energy grid-connected consumption With minimum target, using intelligent algorithm solving result, objective function is as follows:
minfgf=fgf,ps++fgf,ps-+fgf,fm
The frequency modulation and the minimum target of peak regulation ancillary service cost being led to new-energy grid-connected consumption, to new energy electricity Factory is polymerize, several new energy power plant group is obtained, and new energy power plant is made to participate in the energy scheduling of power grid with trunking mode.
A kind of new energy power plant dynamic aggregation method provided by the invention, according to new energy power plant region network load New energy power plant is divided into the new energy power plant group of load valley period, load usual period and load peak period, according to The auxiliary expenses of the positive peak regulation of load valley, peak period each new energy power plant group is low with the auxiliary expenses and load for demodulating peak Paddy period, usual period and peak period each new energy power plant group are grid-connected to dissolve the frequency modulation ancillary service cost being led to, calculates The expense of each new energy power plant group new-energy grid-connected the consumption frequency modulation being led to and peak regulation ancillary service within each period, then with new The energy is grid-connected to dissolve the frequency modulation being led to and the minimum target of peak regulation ancillary service cost, and to new energy, power plant polymerize, and obtains Several new energy power plant group makes new energy power plant participate in the energy scheduling of power grid with trunking mode.
Fig. 2 is the flow chart of new energy of embodiment of the present invention power plant dynamic aggregation method, as shown in Fig. 2, the present invention provides A kind of new energy power plant dynamic aggregation system step it is specific as follows:
Time segments division module 201, for being divided into new energy power plant according to new energy power plant region network load The new energy power plant group of different periods；
Expense computing module 202 is led to for calculating each new energy power plant group new-energy grid-connected consumption within each period Frequency modulation and peak regulation ancillary service expense；
Aggregation module 203, the frequency modulation and peak regulation ancillary service cost for being led to new-energy grid-connected consumption are minimum For target, to new energy, power plant polymerize, and obtains several new energy power plant group, participates in new energy power plant with trunking mode The energy of power grid is dispatched.
Wherein, step 201 specifically includes: segment unit when the new energy power plant of different periods group includes load valley, Segment unit and segment unit when load peak when load is usual.
Step 202 specifically includes:
The positive peak regulation expense computing unit of low-valley interval, for determining the positive peak regulation of load valley period each new energy power plant group Auxiliary expenses, specifically include:
The determination method of positive peak regulation is presented by public affairs in the positive peak regulation judgment sub-unit of low-valley interval, the comprehensive power output of new energy power plant group Formula (1) determines:
In formula, Pre,dg,ps+,-With Pre,dg,ps+,+New energy power plant group's power output of positive peak regulation is presented in respectively comprehensive power output Negative sense fluctuates accumulated value and positive fluctuation accumulated value, λdg,ps+For multiple between the two, value is greater than 1, fluctuates accumulated value meter in negative sense During calculation, when positive fluctuation occurs in new energy power plant group's power output, undulating value makees 0 processing, i.e., only calculates negative sense fluctuation It is cumulative；And in forward direction fluctuation accumulated value calculating process, when negative sense fluctuation occurs in new energy power plant group, undulating value is made 0 processing only calculates the cumulative of positive fluctuation.Work as Pre,dg,ps+,-Greater than λdg.ps+·PRe, dg, ps+ ,+When, then determine load valley Period new energy power plant is in positive peak regulation feature, then according to the power output of load valley period new energy power plant positive peak regulation period and The price of positive peak regulation, the auxiliary expenses of each positive peak regulation of new energy power plant of calculated load low-valley interval；
Low-valley interval demodulates peak expense computing unit, for determining the anti-tune peak of load valley period each new energy power plant group Auxiliary expenses, specifically include:
Low-valley interval demodulates peak judgment sub-unit, and the judgement for demodulating peak is presented by formula in the comprehensive power output of new energy power plant group (2) it determines:
In formula, Pre,dg,ps-,+With Pre,dg,ps-,-The new energy power plant group's power output for demodulating peak is presented in respectively comprehensive power output Forward direction fluctuation accumulated value and negative sense fluctuate accumulated value, λdg,ps-For multiple between the two, value is greater than 1.It is cumulative in forward direction fluctuation It is worth in calculating process, when negative sense fluctuation occurs in new energy power plant group, undulating value makees 0 processing, i.e., only calculates forward wave Dynamic is cumulative；And in reversely fluctuation accumulated value calculating process, when there is positive fluctuation in new energy power plant group's power output, fluctuation Value makees 0 processing, i.e., only calculates the cumulative of negative sense fluctuation.Work as Pre,dg,ps-,+Greater than λdg.ps-·PRe, dg, ps- ,-When, then determine load Low-valley interval new energy power plant, which is in, demodulates peak feature, then the power output of peak period is demodulated according to load valley period new energy power plant And the price at peak is demodulated, each new energy power plant of calculated load low-valley interval demodulates the auxiliary expenses at peak.
Peak period positive peak regulation expense computing unit, for determining the positive peak regulation of load peak period each new energy power plant group Auxiliary expenses, specifically include:
The judgement of positive peak regulation is presented by formula in peak period positive peak regulation judgment sub-unit, the comprehensive power output of new energy power plant group (3) it determines:
In formula, Pre,gf,ps+,-With Pre,gf,ps+,+New energy power plant group's power output of positive peak regulation is presented in respectively comprehensive power output Negative sense fluctuates accumulated value and positive fluctuation accumulated value, λgf,ps+For multiple between the two, value is greater than 1.It is cumulative in forward direction fluctuation It is worth in calculating process, when negative sense fluctuation occurs in new energy power plant group, undulating value makees 0 processing, i.e., only calculates forward wave Dynamic is cumulative；And in reversely fluctuation accumulated value calculating process, when there is positive fluctuation in new energy power plant group's power output, fluctuation Value makees 0 processing, i.e., only calculates the cumulative of negative sense fluctuation.Work as Pre,gf,ps+,+Greater than λgf.ps+·Pre,gf,ps+,-When, then determine load Peak period new energy power plant is in positive peak regulation feature, then according to the power output of load peak period new energy power plant positive peak regulation period And the price of positive peak regulation, the auxiliary expenses of calculated load peak period each positive peak regulation of new energy power plant；
Peak period demodulates peak expense computing unit, for determining the anti-tune peak of load valley period each new energy power plant group Auxiliary expenses, specifically include:
Peak period demodulates peak judgment sub-unit, and the judgement for demodulating peak is presented by formula in the comprehensive power output of new energy power plant group (4) it determines:
In formula, Pre,gf,ps-,+With Pre,gf,ps-,-The new energy power plant group's power output for demodulating peak is presented in respectively comprehensive power output Forward direction fluctuation accumulated value and negative sense fluctuate accumulated value, λgf,ps-For multiple between the two, value is greater than 1.It is cumulative in forward direction fluctuation It is worth in calculating process, when reversed fluctuation occurs in new energy power plant group's power output, undulating value makees 0 processing, i.e., only calculates forward wave Dynamic is cumulative；And in negative sense fluctuation accumulated value calculating process, when there is positive fluctuation in new energy power plant group's power output, fluctuation Value makees 0 processing, i.e., only calculates the cumulative of negative sense fluctuation.Work as Pre,gf,ps-,-Greater than λgf.ps-·Pre,gf,ps-,+When, then determine load Peak period new energy power plant is in positive peak regulation feature, then the power output of peak period is demodulated according to load peak period new energy power plant And the price at peak is demodulated, calculated load peak period, each new energy power plant demodulated the auxiliary expenses at peak.
Low-valley interval frequency modulation expense computing unit, for determining that each grid-connected consumption of new energy power plant group of load valley period is drawn The frequency modulation ancillary service cost of cause, specifically includes:
Low-valley interval frequency modulation price determines subelement, the frequency modulation auxiliary clothes that the consumption of load valley period new-energy grid-connected is led to The price of business depends on the resulting comprehensive power output of new energy power plant group of polymerization and averagely fluctuates situation, measure such as formula (5):
In formula, Δ TdgFor the load low-valley interval duration, Δ t indicates that new energy power plant group power output undulate quantity calculates the time Interval；round(ΔTdg/ Δ t) is indicated to Δ Tdg/ Δ t numerical value round, pre,fm,dg,i,Δt(r) be load valley when The wave at r-th of interval Δ t of i-th new energy power plant group power output of the comprehensive power output feature of section between positive peak regulation and anti-tune peak Momentum, flusum,dg,iFor the mean value of new energy power plant group power output undulate quantity, Sflu,dg,i,lowWith Sflu,dg,i,uppRespectively this is new The lower limit and the upper limit of energy power plant group power output undulate quantity mean value, two parameter value reference load low-valley interval power grid frequency modulation auxiliary Service price.Load valley period each new energy is determined according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Source power plant frequency modulation ancillary service price, each new energy power plant frequency modulation ancillary service cost of calculated load low-valley interval；
Usual period frequency modulation expense computing unit, for determining what each grid-connected consumption of new energy power plant group of usual period was led to Frequency modulation ancillary service cost, specifically includes:
Usual period frequency modulation price determines subelement, the frequency modulation auxiliary clothes that the usual period new-energy grid-connected consumption of load is led to The price of business depends on the resulting comprehensive power output of new energy power plant group of polymerization and averagely fluctuates situation, measure such as formula (6):
In formula, Δ TpcFor the usual window duration of load, Δ t indicates that new energy power plant group power output undulate quantity calculates the time Interval；round(ΔTpc/ Δ t) is indicated to Δ Tpc/ Δ t numerical value round, pRe, fm, pc, i, Δ t(r) when usual for load The undulate quantity at r-th of interval Δ t of i-th of new energy power plant group's power output of section, flusum,pc,iGo out Reeb for new energy power plant group The mean value of momentum, Sflu,pc,i,lowWith Sflu,pc,i,uppRespectively the new energy power plant group power output undulate quantity mean value lower limit with it is upper Limit, the usual period power grid frequency modulation ancillary service price of the value reference load of the two parameter.It is electric according to resulting new energy is polymerize The comprehensive power output of factory group averagely fluctuation situation determines load usual period each new energy power plant frequency modulation ancillary service price, calculated load Each new energy power plant frequency modulation ancillary service cost of usual period；
Peak period frequency modulation expense computing unit, for determining what peak period each grid-connected consumption of new energy power plant group was led to Frequency modulation ancillary service cost, specifically includes:
Peak period frequency modulation price determines subelement, the frequency modulation auxiliary clothes that the consumption of load peak period new-energy grid-connected is led to The price of business depends on the resulting comprehensive power output of new energy power plant group of polymerization and averagely fluctuates situation, measure such as formula (7):
In formula, Δ TgfFor load duration peak period, Δ t indicates that new energy power plant group power output undulate quantity calculates the time Interval；round(ΔTgf/ Δ t) is indicated to Δ Tgf/ Δ t numerical value round, pRe, fm, gf, i, Δ t(r) be load peak when The wave at r-th of interval Δ t of i-th new energy power plant group power output of the comprehensive power output feature of section between positive peak regulation and anti-tune peak Momentum, flusum,gf,iFor the mean value of new energy power plant group power output undulate quantity, SFlu, gf, i, lowWith SFlu, gf, i, uppRespectively this is new The lower limit and the upper limit of energy power plant group power output undulate quantity mean value, the value reference load peak period power grid frequency modulation of the two parameter are auxiliary Help service price.Determine that the load peak period is each new according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Energy power plant frequency modulation ancillary service price, calculated load peak period each new energy power plant frequency modulation ancillary service cost.
Peak regulation and frequency modulation expense computing unit disappear for calculating each new energy power plant group new-energy grid-connected within each period It receives the expense of the frequency modulation that is led to and peak regulation ancillary service, specifically includes:
Load valley period peak regulation and frequency modulation cost-calculation unit calculate new-energy grid-connected consumption using formula (8) and draw The frequency modulation and peak regulation ancillary service cost of cause, as follows:
In formula, tdg,initWith Δ TdgRespectively at the beginning of the load valley period with the duration；pdg,ps+、fdg,ps+With pre,dg,ps+It (t) is respectively the grid-connected peak regulation auxiliary being led to of new energy power plant group for polymerizeing resulting comprehensive power output and positive peak regulation being presented Price, expense and the t moment power generating value of service；pdg,ps-、fdg,ps-With pre,dg,ps-It (t) is respectively to polymerize resulting comprehensive power output Price, expense and the t moment power generating value for demodulating the grid-connected peak regulation ancillary service being led to of new energy power plant group at peak is presented；hfm,dgWith fdg,fmIt is the resulting comprehensive feature of contributing of polymerization between positive peak regulation and demodulates new energy power plant group's total number between peak and be somebody's turn to do The sum of the expense of the grid-connected frequency modulation ancillary service being led to of class new energy power plant group；pfm,dg,iWith pre,fm,dg,iIt (t) is respectively polymerization institute The comprehensive power output feature obtained is between positive peak regulation and the grid-connected frequency modulation ancillary service being led to of i-th of new energy power plant group for demodulating peak Price and t moment power generating value, fdgIndicate that the grid-connected peak regulation being led to that dissolves of each new energy power plant group of low-valley interval takes with frequency modulation auxiliary The summation of business expense.
The usual period peak regulation of load and frequency modulation cost-calculation unit calculate new-energy grid-connected consumption using formula (9) and draw The frequency modulation and peak regulation ancillary service cost of cause, as follows:
In formula, tpc,initWith Δ TpcRespectively at the beginning of the load usual period with the duration；hpcIndicate the period It polymerize the total number of resulting new energy power plant group；fpc,i、pfm,pc,iWith pre,fm,pc,iIt (t) is respectively that period polymerization is resulting Expense, price and the t moment power generating value of i-th of grid-connected frequency modulation ancillary service being led to of new energy power plant group, fpcWhen indicating usual The grid-connected summation for dissolving the frequency modulation ancillary service cost being led to of Duan Ge new energy power plant group.
Load peak period peak regulation and frequency modulation cost-calculation unit, in (including peak period I and high load peak period The peak period II), the frequency modulation and peak regulation ancillary service cost that new-energy grid-connected consumption is led to are calculated using formula (10), as follows:
In formula, tgf,initWith Δ TgfRespectively at the beginning of the load peak period with the duration；pgf,ps+、fgf,ps+With pre,gf,ps+It (t) is respectively the grid-connected peak regulation auxiliary being led to of new energy power plant group for polymerizeing resulting comprehensive power output and positive peak regulation being presented Service price, expense and t moment power generating value；pgf,ps-、fgf,ps-With pre,gf,ps-It (t) is respectively to polymerize resulting comprehensive power output to be in Now demodulate price, expense and the t moment power generating value of the grid-connected peak regulation ancillary service being led to of new energy power plant group at peak；hfm,gfWith fgf,fmRespectively polymerize resulting comprehensive power output feature between positive peak regulation and demodulate new energy power plant group's total number between peak with Grid-connected the sum of the frequency modulation ancillary service cost being led to of such new energy power plant group；pfm,gf,i、fgf,fm,iWith pre,gf,fm,i(t) respectively To polymerize resulting comprehensive power output feature between positive peak regulation and demodulating the grid-connected tune being led to of i-th of new energy power plant group between peak Price, expense and the t moment power generating value of frequency ancillary service, fgfIndicate what peak period each grid-connected consumption of new energy power plant group was led to The summation of peak regulation and frequency modulation ancillary service cost.
Step 203 specifically includes:
Polymerized unit, for the grid-connected minimum mesh for dissolving the frequency modulation and peak regulation ancillary service that are led to of new energy power plant group Mark solves the polymerization methods of day part new energy power plant using intelligent algorithm, obtains the new energy power plant group of day part；
In the load valley period, with the quasi- new energy power plant group's serial number variable (variable-value being divided into of each new energy power plant Positive integer, and it is less than or equal to the total number of new energy power plant), the frequency modulation being led to new-energy grid-connected consumption and peak regulation ancillary service Network minimal is target, and using intelligent algorithm solving result, objective function is as follows:
minfdg=fdg,ps++fdg,ps-+fdg,fm
In the load usual period, with the quasi- new energy power plant group's serial number variable (variable-value being divided into of each new energy power plant Positive integer, and it is less than or equal to the total number of new energy power plant), the frequency modulation ancillary service cost being led to is dissolved most with new-energy grid-connected Low is target, and using intelligent algorithm solving result, objective function is as follows:
The load peak period, with the quasi- new energy power plant group's serial number variable being divided into of each new energy power plant, (variable-value is just Integer, and it is less than or equal to the total number of new energy power plant), the frequency modulation and peak regulation ancillary service expense being led to new-energy grid-connected consumption With minimum target, using intelligent algorithm solving result, objective function is as follows:
minfgf=fgf,ps++fgf,ps-+fgf,fm
Energy scheduling unit, in day part, the corresponding new energy power plant group to carry out power grid using day part Energy scheduling.
Fig. 3 is new energy of embodiment of the present invention power plant Time segments division structural schematic diagram, as shown in figure 3, according to new energy electricity Factory's region network load by new energy power plant be divided into different periods new energy power plant group, including the load valley period 1, Load usual period 2, load peak period I 3 and peak period II 4.It is led within each period with new-energy grid-connected consumption Frequency modulation and the minimum target of peak regulation ancillary service cost, new energy power plant is polymerize, and obtains several new energy power plant group, is made new Energy power plant participates in the energy scheduling of power grid with trunking mode.
A kind of new energy power plant dynamic aggregation system provided by the invention, according to new energy power plant region network load New energy power plant is divided into the new energy power plant group of load valley period, load usual period and load peak period, according to The auxiliary expenses of the positive peak regulation of load valley, peak period each new energy power plant group is low with the auxiliary expenses and load for demodulating peak Paddy period, usual period and peak period each new energy power plant group are grid-connected to dissolve the frequency modulation ancillary service cost being led to, calculates The expense of each new energy power plant group new-energy grid-connected the consumption frequency modulation being led to and peak regulation ancillary service within each period, then with new The energy is grid-connected to dissolve the frequency modulation being led to and the minimum target of peak regulation ancillary service cost, and to new energy, power plant polymerize, and obtains Several new energy power plant group makes new energy power plant participate in the energy scheduling of power grid with trunking mode.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For system disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part It is bright.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not It is interpreted as limitation of the present invention.

Claims (10)

1. a kind of new energy power plant dynamic aggregation method, which is characterized in that the described method includes:
New energy power plant is divided into the new energy power plant group of different periods according to new energy power plant region network load；
Calculate the expense of each new energy power plant group new-energy grid-connected consumption frequency modulation being led to and peak regulation ancillary service within each period With；
With the new-energy grid-connected frequency modulation that is led to of consumption and the minimum target of peak regulation ancillary service cost, to new energy power plant into Row polymerization obtains several new energy power plant group, and new energy power plant is made to participate in the energy scheduling of power grid with trunking mode.
2. a kind of new energy power plant dynamic aggregation method according to claim 1, which is characterized in that the different periods New energy power plant group includes load valley period, load usual period and load peak period.
3. a kind of new energy power plant dynamic aggregation method according to claim 1, which is characterized in that described to calculate each new energy The expense of source power plant group new-energy grid-connected the consumption frequency modulation being led to and peak regulation ancillary service within each period, specifically includes:
It determines the auxiliary expenses of the positive peak regulation of load valley period each new energy power plant group and demodulates the auxiliary expenses at peak；
It determines the auxiliary expenses of load peak period each positive peak regulation of new energy power plant group and demodulates the auxiliary expenses at peak；
Determine that load valley period, usual period and the peak period grid-connected frequency modulation auxiliary being led to that dissolves of each new energy power plant group take Business expense.
4. a kind of new energy power plant dynamic aggregation method according to claim 1, which is characterized in that simultaneously with the new energy The frequency modulation and the minimum target of peak regulation ancillary service cost that net consumption is led to, to new energy, power plant polymerize, and obtains several New energy power plant group is made new energy power plant be participated in the energy scheduling of power grid with trunking mode, specifically included:
With the grid-connected minimum target for dissolving the frequency modulation and peak regulation ancillary service that are led to of new energy power plant, solved using intelligent algorithm The polymerization methods of day part new energy power plant obtain the new energy power plant group of day part；
In day part, dispatched using the energy that the corresponding new energy power plant group of day part carries out power grid.
5. a kind of new energy power plant dynamic aggregation method according to claim 3, which is characterized in that the determining load is low The auxiliary expenses of the positive peak regulation of paddy period each new energy power plant group and the auxiliary expenses for demodulating peak, specifically include:
Determine whether load valley period each new energy power plant group is positive peak regulation, if so, according to load valley period new energy The positive power output of peak regulation period of power plant group and the price of positive peak regulation, each positive peak regulation of new energy power plant group of calculated load low-valley interval Auxiliary expenses；
Determine whether load valley period each new energy power plant group is to demodulate peak, if so, according to load valley period new energy Power plant group demodulates the power output of peak period and demodulates the price at peak, and each new energy power plant group of calculated load low-valley interval demodulates peak Auxiliary expenses.
6. a kind of new energy power plant dynamic aggregation method according to claim 3, which is characterized in that the determining load is high The auxiliary expenses of the positive peak regulation of peak period each new energy power plant group and the auxiliary expenses for demodulating peak, specifically include:
Determine whether load peak period each new energy power plant group is positive peak regulation, if so, according to load peak period new energy The positive power output of peak regulation period of power plant group and the price of positive peak regulation, calculated load peak period each positive peak regulation of new energy power plant group Auxiliary expenses；
Determine whether load peak period each new energy power plant group is to demodulate peak, if so, according to load peak period new energy Power plant group demodulates the power output of peak period and demodulates the price at peak, and calculated load peak period, each new energy power plant group demodulated peak Auxiliary expenses.
7. a kind of new energy power plant dynamic aggregation method according to claim 3, which is characterized in that the determining load is low Paddy period, usual period and peak period each new energy power plant group are grid-connected to dissolve the frequency modulation ancillary service cost being led to, specific packet It includes:
Load valley period each new energy electricity is determined according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Factory's group's frequency modulation ancillary service price, each new energy power plant group frequency modulation ancillary service cost of calculated load low-valley interval；
Load usual period each new energy electricity is determined according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Factory's group's frequency modulation ancillary service price, calculated load usual period each new energy power plant group frequency modulation ancillary service cost；
Load peak period each new energy electricity is determined according to the resulting comprehensive power output of new energy power plant group averagely fluctuation situation is polymerize Factory's group's frequency modulation ancillary service price, calculated load peak period each new energy power plant group frequency modulation ancillary service cost.
8. a kind of new energy power plant dynamic aggregation system, which is characterized in that the system comprises:
Time segments division module, for new energy power plant to be divided into different periods according to new energy power plant region network load New energy power plant group；
Expense computing module, for calculate each new energy power plant group frequency modulation that new-energy grid-connected consumption is led within each period with The expense of peak regulation ancillary service；
Aggregation module, frequency modulation and the minimum target of peak regulation ancillary service cost for being led to new-energy grid-connected consumption, To new energy, power plant polymerize, and obtains several new energy power plant group, new energy power plant is made to participate in power grid with trunking mode Energy scheduling.
9. a kind of new energy power plant dynamic aggregation system according to claim 8, which is characterized in that the expense calculates mould Block specifically includes:
The positive peak regulation expense computing unit of low-valley interval, for determine load valley period each new energy power plant group positive peak regulation it is auxiliary Help expense；
Low-valley interval demodulates peak expense computing unit, for determining that load valley period each new energy power plant group's demodulates the auxiliary of peak Help expense；
Peak period positive peak regulation expense computing unit, for determine load peak period each new energy power plant group positive peak regulation it is auxiliary Help expense；
Peak period demodulates peak expense computing unit, for determining that load valley period each new energy power plant group's demodulates the auxiliary of peak Help expense；
Low-valley interval frequency modulation expense computing unit, for determining what each grid-connected consumption of new energy power plant group of load valley period was led to Frequency modulation ancillary service cost.
Usual period frequency modulation expense computing unit dissolves the frequency modulation being led to for determining that each new energy power plant group of usual period is grid-connected Ancillary service cost.
Peak period frequency modulation expense computing unit dissolves the frequency modulation being led to for determining that peak period each new energy power plant group is grid-connected Ancillary service cost.
10. a kind of new energy power plant dynamic aggregation system according to claim 8, which is characterized in that the aggregation module, It specifically includes:
Polymerized unit, frequency modulation and the minimum target of peak regulation ancillary service for being led to the grid-connected consumption of new energy power plant group, The polymerization methods that day part new energy power plant is solved using intelligent algorithm obtain the new energy power plant group of day part；
Energy scheduling unit, for carrying out the energy of power grid using the corresponding new energy power plant group of day part in day part Scheduling.
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CN110445193A (en) * 2019-07-22 2019-11-12 国网上海市电力公司经济技术研究院 A kind of frequency modulation compensation distribution method based on virtual plant frequency modulation control strategy
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