CN105429186B - A kind of photovoltaic plant collection control end active power distribution method preferential by high electricity price - Google Patents

A kind of photovoltaic plant collection control end active power distribution method preferential by high electricity price Download PDF

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Publication number
CN105429186B
CN105429186B CN201510934585.9A CN201510934585A CN105429186B CN 105429186 B CN105429186 B CN 105429186B CN 201510934585 A CN201510934585 A CN 201510934585A CN 105429186 B CN105429186 B CN 105429186B
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active
plant stand
electricity price
total
collection control
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CN105429186A (en
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严涛松
刘双
刘亮亮
柏嵩
张建周
刘成林
蒋欣宇
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NARI Nanjing Control System Co Ltd
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NARI Nanjing Control System Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/48—Controlling the sharing of the in-phase component
    • H02J3/383—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The invention discloses a kind of photovoltaic plant collection control end active power distribution method preferential by high electricity price, set first in the telecontrol communication machine at photovoltaic plant collection control end and run collection control end active power distribute module and probe timer；Then collection control end active power distribute module dispatches the real hair value of the active power of total active command and each plant stand according to what is collected, the collection control total active power in end is allocated by high electricity price plant stand preferential distribution principle, generates to collect in real time using the method for detecting and being combined according to nargin distribution and controls the active power allocation result that the total active power in end is assigned to each plant stand；Finally collection control end active power distribute module is performed the front end processor AGC modules that active power allocation result is issued to each plant stand by the communication module in telecontrol communication machine.Total gene-ration revenue of the different electricity prices of the different plant stands in photovoltaic plant collection control end is realized and maximized, the power generation needs of high electricity price plant stand is preferentially met, greatly improves economic well-being of workers and staff.

Description

A kind of photovoltaic plant collection control end active power distribution method preferential by high electricity price
Technical field
The present invention relates to a kind of active power distribution method, more particularly to a kind of photovoltaic plant collection preferential by high electricity price End active power distribution method is controlled, belongs to active power controller technical field.
Background technology
Due to the policy reasons of new energy rate for incorporation into the power network, the affiliated plant stand of photovoltaic collection control is because building period difference or geographical position Different (such as different resource areas) causes each plant stand rate for incorporation into the power network difference than larger.
And current scheduling only issues total active power to collection control end and is adjusted, then by collection control end active power distribution mould Block carry out secondary distribution, and by allocation result be sent to each plant stand pass through plant stand AGC power control algorithms module perform distribution knot Really.
Currently, the active power distribution at photovoltaic plant collection control end is main using by power generation margin or by power prediction result As allocation strategy, these allocation strategies do not account for electricity price factor, so as to directly reduce the economic well-being of workers and staff of photovoltaic plant.
The content of the invention
It is a primary object of the present invention to overcoming deficiency of the prior art, there is provided a kind of photovoltaic preferential by high electricity price Power station collection control end active power distribution method, realizes and receives total generating of the different electricity prices of different plant stands under photovoltaic plant collection control end Benefit is maximized, and the power generation needs of high electricity price plant stand is preferentially met, so as to greatly improve economic well-being of workers and staff.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of photovoltaic plant collection control end active power distribution method preferential by high electricity price, comprises the following steps：
A) set in the telecontrol communication machine at photovoltaic plant collection control end and run collection control end active power distribute module and detect fixed When device, wherein, telecontrol communication machine is used to receiving the total active command of scheduling that control centre issues and gathers each plant stand connected under telecontrol communication machine The real hair value of active power, probe timer is used for timing tracking and detects the generating capacity of high electricity price plant stand；
B) collection control end active power distribute module is according to the wattful power for dispatching total active command and each plant stand collected Rate reality hair value, is allocated by the high preferential distribution principle of electricity price plant stand to the collection control total active power in end, using detection and according to abundant The collection control total active power in end is assigned to the active power allocation result of each plant stand by the method generation that degree distribution is combined in real time；
C) collection control end active power distribute module is issued active power allocation result by the communication module in telecontrol communication machine Active power allocation result is performed to the front end processor AGC modules of each plant stand, and by the front end processor AGC modules of each plant stand.
The present invention is further arranged to, the step B) realize in accordance with the following methods, specifically include following steps：
1) set and start probe timer；And it is 0 to set high electricity price plant stand numbering, other plant stands numbering is i, wherein 1 ≤ i≤n, then plant stand total number is n+1；Numbering is that i other plant stands are low electricity price plant stand；
Note integrates the control total active power setting value in end as Ps, the total active command P of scheduling that control centre is issuedd, high electricity price plant stand It is current to send out active in fact for P0, the high active setting value of electricity price plant stand is P0s, high electricity price plant stand sends out higher limit P active0max, high electricity The active probe value of valency plant stand is Pt, it is P that plant stand i currently sends out active in facti, the active setting values of plant stand i are Pis, plant stand i's sends out Active higher limit Pimax, plant stand i's sends out lower limit P activeimin；
Wherein, PtSetting principle is：Can cause high electricity price plant stand currently send out active in fact produce effective Feedback minimum value, While produced reality is sent out active, changing value is being dispatched in the fluctuation range allowed；
2) current all plant stands are calculated and always send out active in fact
Calculating current all plant stands always can send out higher limit active
Calculate plant stand i power generation margins Pim=Pimax-Pi；
Calculate current all total power generation margin P of plant standam=Pamax-Pa；
Calculate current all low total power generation margins of electricity price plant stand
Calculate high electricity price plant stand power generation margin P0m=P0max-P0；
3) judge whether the telecontrol communication machine at photovoltaic plant collection control end receives the total active command P of scheduling that control centre is issuedd, If receiving, if will the collection control total active power setting value P in endsIt is set to the total active command P of scheduling of dispatching down distributingdAnd perform step It is rapid 4), if not receiving, if judge whether probe timer overtime；
If probe timer is overtime, reset probe timer, and P is sets=Pd', and perform step 4), wherein, Pd' The total active command of scheduling of the neighbouring dispatching down distributing once received for telecontrol communication machine；
If probe timer is not overtime, return to step 2)；
4) the collection control total active power in end is allocated by high electricity price plant stand preferential distribution principle, specifically,
4-1) calculate active increment Delta P=Ps-Pa；
If 4-2) active increment Delta P ＞ 0, increase collection control end is always sent out active in fact, and increase is exerted oneself, and performs step 4- 3)；
If active increment Delta P≤0, reduce collection control end and always send out active in fact, reduction is exerted oneself, specifically,
4-2-1) order that reduction is exerted oneself is preferentially to reduce low electricity price plant stand to send out active in fact, if low electricity price plant stand always has Work(setting value, which is reduced to, can not still meet requirement when low electricity price plant stand total sends out lower limit active, then to reduce high electricity price plant stand real Send out active；
Current all low electricity price plant stands difference that always active setting value and low electricity price plant stand are always sent out active in fact, i.e. low electricity are set Valency plant stand needs the active power Δ P reducedl=Δ P；
If 4-2-2) Pi-|ΔPl|×Pim/Plam＜ Pimin, the active setting values of plant stand i are set to P by i >=1is= Pimin；If Pi-|ΔPl|×Pim/Plam≥Pimin, the active setting values of plant stand i are set to P by i >=1is=Pi-|ΔPl|× Pim/Plam；
4-2-3) according to step 4-2-2) gained Pis, calculate the total active setting value of low electricity price plant stand
IfShowing that the total active setting value of low electricity price plant stand is reduced to low the total of electricity price plant stand can Requirement can not still be met by sending out lower limit active, then reduces the high active setting value of electricity price plant stand, calculate the high active setting of electricity price plant stand ValueOtherwise high electricity price plant stand setting value is set to P0s=P0+Pt；
4-2-4) perform step 5)；
If 4-3) Δ P × P0m/Pam＜ Pt, show that the incrementss that collection control end is always sent out active in fact are assigned to high electricity according to nargin The active active probe value than high electricity price plant stand of valency plant stand is small, i.e. P0+ΔP×P0m/Pam＜ P0+Pt, now to high electricity price Plant stand proceeds generating capacity and detects and be allocated according to detection, and the high active setting value of electricity price plant stand is set into P0s=P0 +Pt；
Otherwise, i.e. Δ P × P0m/Pam≥Pt, show that the incrementss that collection control end is always sent out active in fact are assigned to high electricity according to nargin The active active probe value than high electricity price plant stand of valency plant stand is big, i.e. P0+ΔP×P0m/Pam≥P0+Pt, now to high electricity price Plant stand is allocated according to nargin, and the high active setting value of electricity price plant stand is set into P0s=P0+ΔP×P0m/Pam；
4-4) according to step 4-3) determine the active setting value P of high electricity price plant stand0sAfterwards, calculate all in addition to high electricity price plant stand The total active setting value P of low electricity price plant standals=Ps-P0s；The total active setting value of current all low electricity price plant stands is calculated again and all low The difference DELTA P that electricity price plant stand is always sent out active in factl=Pals-Pal, wherein, all low electricity price plant stands are always sent out active in fact
If Δ Pl＜ 0, then ration the power supply, reduction is exerted oneself, and performs step 4-5 to low electricity price plant stand)；
If Δ Pl>=0, then low electricity price plant stand is carried out increasing electricity, increase is exerted oneself, and the active setting values of plant stand i are set into Pis =Pi+|ΔPl|×Pim/Plam, i >=1；And perform step 5)；
4-5) order exerted oneself of reduction is that preferentially to reduce low electricity price plant stand active, when the total active setting value of low electricity price plant stand When being reduced to low electricity price plant stand total and sending out lower limit active, it is active that reselection reduces high electricity price plant stand, specifically,
High electricity price plant stand generating capacity 4-5-1) is detected by probe timer, the active setting value of high electricity price plant stand is set For P0s=P0+Pt；
If 4-5-2) Pi-|ΔPl|×Pim/Plam＜ Pimin, the active setting values of plant stand i are set to P by i >=1is= Pimin, low electricity price plant stand i is reduced to the plant stand i minimum load for sending out lower limit active and keeping plant stand i；When low electricity price plant stand Total active setting value is reduced to when low electricity price plant stand total sends out lower limit active that to reduce high electricity price plant stand again active；By high electricity price The active setting value of plant stand is re-set as
If Pi-|ΔPl|×Pim/Plam≥Pimin, the active setting values of plant stand i are set to P by i >=1is=Pi-|ΔPl| ×Pim/Plam；
5) according to step 4) obtain the active setting value P of high electricity price plant stand0sWith the active setting value P of plant stand iis, i >=1, life The active power allocation result that the total active power in end is assigned to each plant stand is controlled into will collect in real time.
Compared with prior art, the invention has the advantages that：
Take into full account that each plant stand has the different actual conditions different with generating capacity of electricity price, using generating capacity detection with The method being engaged is distributed by nargin, completes currently to send out all plant stands in fact the tracking of active power and high electricity price plant stand is sent out The detection of electric energy power, total active power to dispatching down distributing is allocated；Active power is preferentially distributed to high electricity price plant stand, from And the power generation needs of high electricity price plant stand are met, realize greatly improving for economic well-being of workers and staff.When scheduling is not rationed the power supply, divided by nargin Match somebody with somebody；When scheduling is rationed the power supply, it is allocated by way of detecting and being combined according to nargin, farthest realizes photovoltaic collection control Maximum economic well-being of workers and staff.
The above is only the general introduction of technical solution of the present invention, in order to be better understood upon the technological means of the present invention, under With reference to accompanying drawing, the invention will be further described in face.
Brief description of the drawings
Fig. 1 is photovoltaic power station system network structure of the invention；
Fig. 2 distributes framework map for the photovoltaic plant active power of the present invention；
Fig. 3 controls the active power allocation process diagram of end active power distribute module for the collection of the present invention.
Embodiment
With reference to Figure of description, the present invention is further illustrated.
The present invention provides a kind of photovoltaic plant collection control end active power distribution method preferential by high electricity price, including following step Suddenly：
A) set in the telecontrol communication machine 1 at photovoltaic plant collection control end and run collection control end active power distribute module and detect fixed When device, wherein, telecontrol communication machine 1 is used to receiving that the total active command of scheduling that control centre 2 issues and gathering connects under telecontrol communication machine 1 to be each The real hair value of the active power of plant stand 3, probe timer is used for timing tracking and detects the generating capacity of high electricity price plant stand 30；As schemed Shown in 1 and Fig. 2.
B) collection control end active power distribute module is according to the wattful power for dispatching total active command and each plant stand collected Rate reality hair value, is allocated by the high preferential distribution principle of electricity price plant stand to the collection control total active power in end, using detection and according to abundant The collection control total active power in end is assigned to the active power allocation result of each plant stand by the method generation that degree distribution is combined in real time.
C) collection control end active power distribute module is issued active power allocation result by the communication module in telecontrol communication machine 1 Active power allocation result is performed to the front end processor AGC modules of each plant stand 3, and by the front end processor AGC modules of each plant stand 3.
As shown in figure 3, step B) realize in accordance with the following methods, specifically include following steps：
1) set and start probe timer；And it is 0 to set high electricity price plant stand numbering, other plant stands numbering is i, wherein 1 ≤ i≤n, then plant stand total number is n+1；Numbering is that i other plant stands are low electricity price plant stand；
Note integrates the control total active power setting value in end as Ps, the total active command P of scheduling that control centre is issuedd, high electricity price plant stand It is current to send out active in fact for P0, the high active setting value of electricity price plant stand is P0s, high electricity price plant stand sends out higher limit P active0max, high electricity The active probe value of valency plant stand is Pt, it is P that plant stand i currently sends out active in facti, the active setting values of plant stand i are Pis, plant stand i's sends out Active higher limit Pimax, plant stand i's sends out lower limit P activeimin；
Wherein, PtSetting principle is：Can cause high electricity price plant stand currently send out active in fact produce effective Feedback minimum value, While produced reality is sent out active, changing value is being dispatched in the fluctuation range allowed.
2) current all plant stands are calculated and always send out active in fact
Calculating current all plant stands always can send out higher limit active
Calculate plant stand i power generation margins Pim=Pimax-Pi；
Calculate current all total power generation margin P of plant standam=Pamax-Pa；
Calculate current all low total power generation margins of electricity price plant stand
Calculate high electricity price plant stand power generation margin P0m=P0max-P0。
3) judge whether the telecontrol communication machine at photovoltaic plant collection control end receives the total active command P of scheduling that control centre is issuedd, If receiving, if will the collection control total active power setting value P in endsIt is set to the total active command P of scheduling of dispatching down distributingdAnd perform step It is rapid 4), if not receiving, if judge whether probe timer overtime；
If probe timer is overtime, reset probe timer, and P is sets=Pd', and perform step 4), wherein, Pd' The total active command of scheduling of the neighbouring dispatching down distributing once received for telecontrol communication machine；
If probe timer is not overtime, return to step 2).
4) the collection control total active power in end is allocated by high electricity price plant stand preferential distribution principle, specifically,
4-1) calculate active increment Delta P=Ps-Pa；
If 4-2) active increment Delta P ＞ 0, increase collection control end is always sent out active in fact, and increase is exerted oneself, and performs step 4- 3)；
If active increment Delta P≤0, reduce collection control end and always send out active in fact, reduction is exerted oneself, specifically,
4-2-1) order that reduction is exerted oneself is preferentially to reduce low electricity price plant stand to send out active in fact, if low electricity price plant stand always has Work(setting value, which is reduced to, can not still meet requirement when low electricity price plant stand total sends out lower limit active, then to reduce high electricity price plant stand real Send out active；
Current all low electricity price plant stands difference that always active setting value and low electricity price plant stand are always sent out active in fact, i.e. low electricity are set Valency plant stand needs the active power Δ P reducedl=Δ P；
If 4-2-2) Pi-|ΔPl|×Pim/Plam＜ Pimin, the active setting values of plant stand i are set to P by i >=1is= Pimin；If Pi-|ΔPl|×Pim/Plam≥Pimin, the active setting values of plant stand i are set to P by i >=1is=Pi-|ΔPl|× Pim/Plam；
4-2-3) according to step 4-2-2) gained Pis, calculate the total active setting value of low electricity price plant stand
IfShowing that the total active setting value of low electricity price plant stand is reduced to low the total of electricity price plant stand can Requirement can not still be met by sending out lower limit active, then reduces the high active setting value of electricity price plant stand, calculate the high active setting of electricity price plant stand ValueOtherwise high electricity price plant stand setting value is set to P0s=P0+Pt；
4-2-4) perform step 5)；
If 4-3) Δ P × P0m/Pam＜ Pt, show that the incrementss that collection control end is always sent out active in fact are assigned to high electricity according to nargin The active active probe value than high electricity price plant stand of valency plant stand is small, i.e. P0+ΔP×P0m/Pam＜ P0+Pt, now to high electricity price Plant stand proceeds generating capacity and detects and be allocated according to detection, and the high active setting value of electricity price plant stand is set into P0s=P0 +Pt；
Otherwise, i.e. Δ P × P0m/Pam≥Pt, show that the incrementss that collection control end is always sent out active in fact are assigned to high electricity according to nargin The active active probe value than high electricity price plant stand of valency plant stand is big, i.e. P0+ΔP×P0m/Pam≥P0+Pt, now to high electricity price Plant stand is allocated according to nargin, and the high active setting value of electricity price plant stand is set into P0s=P0+ΔP×P0m/Pam；
4-4) according to step 4-3) determine the active setting value P of high electricity price plant stand0sAfterwards, calculate all in addition to high electricity price plant stand The total active setting value P of low electricity price plant standals=Ps-P0s；The total active setting value of current all low electricity price plant stands is calculated again and all low The difference DELTA P that electricity price plant stand is always sent out active in factl=Pals-Pal, wherein, all low electricity price plant stands are always sent out active in fact
If Δ Pl＜ 0, then ration the power supply, reduction is exerted oneself, and performs step 4-5 to low electricity price plant stand)；
If Δ Pl>=0, then low electricity price plant stand is carried out increasing electricity, increase is exerted oneself, and the active setting values of plant stand i are set into Pis =Pi+|ΔPl|×Pim/Plam, i >=1；And perform step 5)；
4-5) order exerted oneself of reduction is that preferentially to reduce low electricity price plant stand active, when the total active setting value of low electricity price plant stand When being reduced to low electricity price plant stand total and sending out lower limit active, it is active that reselection reduces high electricity price plant stand, specifically,
High electricity price plant stand generating capacity 4-5-1) is detected by probe timer, the active setting value of high electricity price plant stand is set For P0s=P0+Pt；
If 4-5-2) Pi-|ΔPl|×Pim/Plam＜ Pimin, the active setting values of plant stand i are set to P by i >=1is= Pimin, low electricity price plant stand i is reduced to the plant stand i minimum load for sending out lower limit active and keeping plant stand i；When low electricity price plant stand Total active setting value is reduced to when low electricity price plant stand total sends out lower limit active that to reduce high electricity price plant stand again active；By high electricity price The active setting value of plant stand is re-set asIf Pi-|ΔPl|×Pim/Plam≥Pimin, i >=1, by plant stand i Active setting value is set to Pis=Pi-|ΔPl|×Pim/Plam。
5) according to step 4) obtain the active setting value P of high electricity price plant stand0sWith the active setting value P of plant stand iis, i >=1, life The active power allocation result that the total active power in end is assigned to each plant stand is controlled into will collect in real time.
The innovative point of the present invention is, completes currently to send out all plant stands in fact the tracking of active power and to high electricity price factory The detection for generating capacity of standing, total active power to dispatching down distributing is allocated；When scheduling is not rationed the power supply, divided by nargin Match somebody with somebody；When scheduling is rationed the power supply, it is allocated by way of detecting and being combined according to nargin, farthest realizes photovoltaic collection control Maximum economic well-being of workers and staff.
General principle, principal character and the advantage of the present invention has been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle It is fixed.

Claims (1)

1. a kind of photovoltaic plant collection control end active power distribution method preferential by high electricity price, it is characterised in that including following step Suddenly：
A) set in the telecontrol communication machine at photovoltaic plant collection control end and run collection control end active power distribute module and probe timer, Wherein, telecontrol communication machine is used to receiving having for each plant stand that the total active command of scheduling that control centre issues and gathering connects under telecontrol communication machine Work(power reality hair value, probe timer is used for timing tracking and detects the generating capacity of high electricity price plant stand；
B) collection control end active power distribute module is real according to the active power for dispatching total active command and each plant stand collected Hair value, is allocated by the high preferential distribution principle of electricity price plant stand to the collection control total active power in end, using detection and according to nargin point It will collect in real time with the method generation being combined and control the active power allocation result that the total active power in end is assigned to each plant stand；
C) active power allocation result is issued to respectively by collection control end active power distribute module by the communication module in telecontrol communication machine The front end processor AGC modules of plant stand, and active power allocation result is performed by the front end processor AGC modules of each plant stand；
The step B) realize in accordance with the following methods, specifically include following steps：
1) set and start probe timer；And it is 0 to set high electricity price plant stand numbering, other plant stands numbering is i, wherein 1≤i≤ N, then plant stand total number is n+1；Numbering is that i other plant stands are low electricity price plant stand；
Note integrates the control total active power setting value in end as Ps, the total active command P of scheduling that control centre is issuedd, high electricity price plant stand is current It is real to send out active for P0, the high active setting value of electricity price plant stand is P0s, high electricity price plant stand sends out higher limit P active0max, high electricity price factory The active probe value stood is Pt, it is P that plant stand i currently sends out active in facti, the active setting values of plant stand i are Pis, plant stand i's sends out active Higher limit Pimax, plant stand i's sends out lower limit P activeimin；
Wherein, PtSetting principle is：Can cause high electricity price plant stand currently send out active in fact produce effective Feedback minimum value, simultaneously Produced reality sends out changing value active in the fluctuation range that scheduling allows；
2) current all plant stands are calculated and always send out active in fact
Calculating current all plant stands always can send out higher limit active
Calculate plant stand i power generation margins Pim=Pimax-Pi；
Calculate current all total power generation margin P of plant standam=Pamax-Pa；
Calculate current all low total power generation margins of electricity price plant stand
Calculate high electricity price plant stand power generation margin P0m=P0max-P0；
3) judge whether the telecontrol communication machine at photovoltaic plant collection control end receives the total active command P of scheduling that control centre is issueddIf connecing Receive, then by the collection control total active power setting value P in endsIt is set to the total active command P of scheduling of dispatching down distributingdAnd perform step 4), If not receiving, if judge whether probe timer overtime；
If probe timer is overtime, reset probe timer, and P is sets=Pd', and perform step 4), wherein, Pd' it is remote The total active command of scheduling for the neighbouring dispatching down distributing once that motivation is received；
If probe timer is not overtime, return to step 2)；
4) the collection control total active power in end is allocated by high electricity price plant stand preferential distribution principle, specifically,
4-1) calculate active increment Delta P=Ps-Pa；
If 4-2) active increment Delta P ＞ 0, increase collection control end is always sent out active in fact, and increase is exerted oneself, and performs step 4-3)；
If active increment Delta P≤0, reduce collection control end and always send out active in fact, reduction is exerted oneself, specifically,
4-2-1) order that reduction is exerted oneself is preferentially to reduce low electricity price plant stand to send out active in fact, is set if low electricity price plant stand is always active Definite value, which is reduced to, can not still meet requirement when low electricity price plant stand total sends out lower limit active, then reduces high electricity price plant stand hair has in fact Work(；
Current all low electricity price plant stands difference that always active setting value and low electricity price plant stand are always sent out active in fact, Ji Di electricity prices factory are set Stand the active power Δ P for needing to reducel=Δ P；
If 4-2-2) Pi-|ΔPl|×Pim/Plam＜ Pimin, the active setting values of plant stand i are set to P by i >=1is=Pimin；Such as Fruit Pi-|ΔPl|×Pim/Plam≥Pimin, the active setting values of plant stand i are set to P by i >=1is=Pi-|ΔPl|×Pim/Plam；
4-2-3) according to step 4-2-2) gained Pis, calculate the total active setting value of low electricity price plant stand
IfShow that the total active setting value of low electricity price plant stand is reduced to low the total of electricity price plant stand and sent out Work(lower limit can not still meet requirement, then reduce the high active setting value of electricity price plant stand, calculate the high active setting value of electricity price plant standOtherwise high electricity price plant stand setting value is set to P0s=P0+Pt；
4-2-4) perform step 5)；
If 4-3) Δ P × P0m/Pam＜ Pt, show that the incrementss that collection control end is always sent out active in fact are assigned to high electricity price factory according to nargin The active active probe value than high electricity price plant stand stood is small, i.e. P0+ΔP×P0m/Pam＜ P0+Pt, now to high electricity price plant stand Proceed generating capacity to detect and be allocated according to detection, the high active setting value of electricity price plant stand is set to P0s=P0+Pt；
Otherwise, i.e. Δ P × P0m/Pam≥Pt, show that the incrementss that collection control end is always sent out active in fact are assigned to high electricity price factory according to nargin The active active probe value than high electricity price plant stand stood is big, i.e. P0+ΔP×P0m/Pam≥P0+Pt, now to high electricity price plant stand It is allocated according to nargin, the high active setting value of electricity price plant stand is set to P0s=P0+ΔP×P0m/Pam；
4-4) according to step 4-3) determine the active setting value P of high electricity price plant stand0sAfterwards, all low electricity in addition to high electricity price plant stand are calculated The total active setting value P of valency plant standals=Ps-P0s；The current total active setting value of all low electricity price plant stands and all low electricity prices are calculated again The difference DELTA P that plant stand is always sent out active in factl=Pals-Pal, wherein, all low electricity price plant stands are always sent out active in fact
If Δ Pl＜ 0, then ration the power supply, reduction is exerted oneself, and performs step 4-5 to low electricity price plant stand)；
If Δ Pl>=0, then low electricity price plant stand is carried out increasing electricity, increase is exerted oneself, and the active setting values of plant stand i are set into Pis=Pi+ |ΔPl|×Pim/Plam, i >=1；And perform step 5)；
4-5) order exerted oneself of reduction is that preferentially to reduce low electricity price plant stand active, when the total active setting value reduction of low electricity price plant stand When sending out lower limit active to low electricity price plant stand total, it is active that reselection reduces high electricity price plant stand, specifically,
High electricity price plant stand generating capacity 4-5-1) is detected by probe timer, the high active setting value of electricity price plant stand is set to P0s =P0+Pt；
If 4-5-2) Pi-|ΔPl|×Pim/Plam＜ Pimin, the active setting values of plant stand i are set to P by i >=1is=Pimin, make Low electricity price plant stand i is reduced to the plant stand i minimum load for sending out lower limit active and keeping plant stand i；When low electricity price plant stand is always active Setting value is reduced to when low electricity price plant stand total sends out lower limit active that to reduce high electricity price plant stand again active；High electricity price plant stand is had Work(setting value is re-set as
If Pi-|ΔPl|×Pim/Plam≥Pimin, the active setting values of plant stand i are set to P by i >=1is=Pi-|ΔPl|×Pim/ Plam；
5) according to step 4) obtain the active setting value P of high electricity price plant stand0sWith the active setting value P of plant stand iis, i >=1, generation is in real time It will collect and control the active power allocation result that the total active power in end is assigned to each plant stand.
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