CN107153986A - A kind of Generation Rights Trade method for promoting new energy to dissolve - Google Patents
A kind of Generation Rights Trade method for promoting new energy to dissolve Download PDFInfo
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Abstract
A kind of Generation Rights Trade method for promoting new energy to dissolve, each power plant reports Generation Rights Trade to offer and the adjustable interval of unit active power output a few days ago, is formed according to quotation height and calls sequencing；Each province adjusts to be offered according to power plant of this province and sorted and load prediction, arranged inside the province with the power transaction of unit generation transprovincially；Each province, which is adjusted, to complete after transaction inside the province, by Transaction Information summarizing and reporting regional network company of this province；Such as transaction results can not meet demand inside the province, then apply for Generation Rights Trade transprovincially to regional network company, regional network company is transprovincially merchandised according to each province power plant peak regulation resource；According to the transaction inside the province formulated a few days ago and transprovincially trading program, in a few days carries out real-time calling, and computational costs.The present invention calculates rational Generation Right and bidded participation volumetric(al) standards, promotes the enthusiasm that fired power generating unit participates in peak regulation.Income should be obtained according to unit generation power transaction and studied and defined trade at competitive price price cap, unit is avoided the generation of malice quote situations while obtaining reasonable benefit.
Description
Technical field
The invention belongs to Operation of Electric Systems and electricity market field, it is related to a kind of Generation Right for promoting new energy to dissolve and hands over
Easy method.
Background technology
Fast development and living standards of the people with national economy are increasingly improved, and national power structure is also become
Change.The electricity consumption proportion of the primary industry declines year by year, and the electricity consumption proportion of second and third industry rises year by year, causes power network peak-valley difference day
Become increase.In addition wind-powered electricity generation, the continuous increase of photovoltaic installation amount and the anti-peak-shaving capability of wind-powered electricity generation, peak load regulation network amplitude and new energy of dissolving
The difficulty in source is increasing.
For dissolving for new energy, China uses the mechanism of assistant service.Existing assistant service mechanism be according to《Power plant
Be incorporated into the power networks management implementation detailed rules and regulations》With《Generate electricity by way of merging two or more grid systems factory's assistant service management implementation detailed rules and regulations》(hereinafter referred to as " two detailed rules and regulations ")
Regulation is performed, and Power Plant carries out peak regulation according to dispatch command.
1) Generation Rights Trade market mechanism principle
Existing peak regulation of power plant assistant service is divided into basic peak regulation service and paid peak regulation service, and basic peak regulation service is hair
Power plant's obligation is free to be provided, and paid peak regulation service should obtain certain costs reimbursement.For paid peak regulation, " two detailed rules and regulations " are used
Integrating system, it is impossible to the accurate contribution for weighing power plant, it is difficult to transfer power plant's enthusiasm.Moreover, regulation is paid in " two detailed rules and regulations "
Peak regulation refers to fired power generating unit active power output in its On Peak Modulation Modes of the rated capacity below 50%.But 50% paid peak regulation
Boundary, it is impossible to give full play to the peak regulation enthusiasm of fired power generating unit.Directly improving paid peak regulation boundary can not be completely to thermal motor
Group forms excitation, because after the paid peak regulation criteria for classifying is improved, if fired power generating unit still reports and submits paid peak regulation scope to be volume
The 50% of constant volume, the peak capacity of such system does not increase, and other power plant will increase by a style peak reimbursement for expenses.
Therefore the peak regulation enthusiasm for how setting rational mechanism of exchange raising fired power generating unit is a urgent problem to be solved.
2) Generation Rights Trade price-bidding model
The regional power grid organizational structure of China includes regional power grid company and region introspection (area) Utilities Electric Co..Regional power grid
Company is responsible for the tune pipe of part power plant in the region and saves the control of interconnection between (area).Province (area) Utilities Electric Co. is responsible for geography
The tune pipe of remaining Zhi Tiao power plant of the non-area net company and control Generation Right of transmission line of electricity is bidded friendship inside the province in boundary line province (area)
Easy mechanism is divided into " merchandising inside the province " and " transprovincially merchandising " according to the difference for participating in object.Transaction refers to that it is a province to participate in both sides inside the province
Generation Rights Trade behavior in the range of (area), transprovincially transaction refers to the Generation Right transprovincially that interconnection progress between (area) is saved by adjustment
Transaction.
" based on net " pattern is that unified operation platform is built by core of regional power grid company, and Provinces (regions) company exists
Respective module is set up in platform respectively.Regional power grid company is responsible for the operation and management of platform." save be entity " pattern be by
Independent construction platform is adjusted in Provinces (regions), is responsible for peak regulation inside the province comprehensively and merchandises.Regional power grid company sets up transaction platform transprovincially, is responsible for
Transprovincially peak regulation is managed.The characteristics of " based on net " highlights unified management, but be due to that regional power grid company is responsible for all inside the province
The tissue of peak regulation and information processing transprovincially, operating point is more, contain much information, to workflow and the efficiency of platform construction and operating
It is required that very high, and Provinces (regions) adjust it is more lay particular emphasis on executions, carry out tissue and participate in the ability of coordination having limited." save to be real
Body " highlights the characteristics of Provinces (regions) are separate, but is a lack of unified platform to there may be each platform standard inadequate
Unified, the operating discrepant situation of flow path efficiency.Simultaneously because data can not be realized shared, regional power grid company is to each power plant
Specific quotation and participation situation can not be grasped in real time, be unfavorable for the transprovincially further tissue of peak regulation and development.
The content of the invention
It is an object of the invention to disappear for the new energy such as fired power generating unit peak regulation enthusiasm deficiency and wind-powered electricity generation in power system
The problem of receiving, it is proposed that a kind of Generation Rights Trade method that promotion new energy is dissolved.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of Generation Rights Trade method for promoting new energy to dissolve, comprises the following steps：
Step I：Bidding and new energy are exerted oneself prediction a few days ago：
Each power plant reports Generation Rights Trade to offer and the adjustable interval of unit active power output a few days ago, is formed according to quotation height
Call sequencing；Each province transfers in capable load prediction itself, wind-powered electricity generation and photovoltaic power generation output forecasting；
Step II：Unit generation weighs trading program inside the province a few days ago for formulation；
Each province adjusts to be offered according to power plant of this province and sorted and load prediction, carries out unit generation power transaction inside the province and arranges；
Step III：Formulate scheme of arrangement of transprovincially merchandising；
Each province, which is adjusted, to complete after transaction inside the province, by Transaction Information summarizing and reporting regional network company of this province；Such as transaction results inside the province
Demand can not be met, then applies for Generation Rights Trade transprovincially to regional network company, regional network company provides according to each province power plant peak regulation
Transprovincially merchandised in source；
Step IV：Real-time calling：
According to the transaction inside the province formulated a few days ago and transprovincially trading program, in a few days carries out real-time calling；
Step V：Tranaction costs are calculated：
After the completion of unit is called, the calculating of Generation Rights Trade expense inside the province is carried out by provincial electric power company, transprovincially tranaction costs
By regional network, company calculates；
The computational methods method of Generation Rights Trade expense and transprovincially tranaction costs is as follows inside the province：
According to the difference for participating in sharing thermal power plant's actual load rate, point third gear is increased successively shares proportion, carries out staged
Share；
Staged amendment is carried out to the fired power generating unit generated energy that participation is shared first：
In formula, Wi tFor generated energy after thermal power plant i amendments；Wl iIt is thermal power plant i in l grades of actual power generations；klFor l grades of amendment systems
Number, l=1,2 or 3；Wherein, it is first grade that rate of load condensate, which is less than 70% part electricity, rate of load condensate part electricity between 70% to 80%
Measure as second gear, it is third gear that rate of load condensate, which is more than 80% part electricity, and the correction factor of correspondence third gear is respectively k1=1, k2=
1.5、k3=2；
Then thermal power plant i contribution quota fiFor：
In formula, FallFor Generation Rights Trade total amount；For new energy power plant j generated energy, i is thermal power plant's number, and j is
New energy power plant number.
Further improve of the invention is that Generation Rights Trade quotation is obtained by procedure below in step I：
1) Generation Right is bidded participation volumetric(al) standards：
Paid peak regulation benchmark is the 50% of rated capacity, if this benchmark brings up to rated capacity (50+xc) %, xcOn the basis of
Raising amount, 0≤xc≤ 5, when fired power generating unit is declared by rated capacity 5%, i.e. active (the 50+ dropped to as capacity of unit
xc- 5) during %, then from the (50+x of rated capacityc) % drops to benchmark rated capacity 50%, this xc% is partially due to benchmark lifting is led
The expense of cause will be shared by new energy power plant；(50+x is dropped to by benchmark rated capacity 50%c- 5) %, this (5-xc) % parts
Still by new energy enterprise and have neither part nor lot in the Thermal Power Enterprises that Generation Right bids and share jointly；
Obtained according to calculating, the scope that the paid peak regulation boundary that Generation Rights Trade participates in is improved is less than 2.05%, therefore will hair
Electricity power transaction participation standard is divided according to the 52% of rated capacity, and fired power generating unit active power output drops to its rated capacity
52% and the above part be free peak regulation, drop to subparticipation Generation Rights Trade of the rated capacity below 52%；
2) Generation Rights Trade bid quotation scope determine：
Using stepping quotation mechanism, it is divided into third gear, first grade：52% ＞ rate of load condensate >=45%, second gear：45% ＞ loads
Rate >=40%, third gear：Rate of load condensate ＜ 40%；And the quotation scope that each grade of Generation Rights Trade is bidded is determined respectively.
Of the invention further improve be, step 1) in calculating process it is as follows：
The increased Generation Rights Trade cost △ C of new energy enterpriseP：
The income F that new energy enterprise is obtained by Generation Rights Tradewind：
Fwind=pwind(5-xc)ΔQ·H (2)
In formula, pthermalBidded quotation, p for the Generation Right of fired power generating unitwindNew energy rate for incorporation into the power network is represented, △ Q represent every
The brought capacity of exerting oneself of unit rated capacity 1% is adjusted, H represents the Generation Rights Trade duration；
The income of new energy enterprise is more than or equal to cost：
Fwind≥ΔCP (3)
Take new energy online pwindElectricity price is 0.61 yuan/kWh, and the Generation Right of fired power generating unit is bidded quotation pthermalFor 0.5
Member/kWh, is obtained：
xc≤2.05 (4)
The present invention, which is further improved, to be, step 2) the middle bar for determining the quotation scope that each grade of Generation Rights Trade is bidded
Part is：Fired power generating unit exerts oneself percentage regulation between 30%~60%, and wherein 200/300MW units are minimum does not throw oily steady combustion
Load drops to the minimum steady combustion load of oil of not throwing of 50%, 600MW units and drops to 40%.
The present invention, which is further improved, to be, step 2) the middle tool for determining the quotation scope that each grade of Generation Rights Trade is bidded
Body process is as follows：
Assuming that the output of fired power generating unit declines x% by rate of load condensate 52%, then 0≤x≤7 are all at first grade；7<x≤12
When, preceding 7% at first grade, and rear (x-7) %, in second gear, works as x>When 12, preceding 7% at first grade, and centre 7~12% is second
Shelves, last (x-12) % is in third gear, and it is respectively p that third gear Generation Rights Trade, which is bidded and offered,t1Member/kWh, pt2Member/kWh, pt3Member/
KWh, the rated capacity of unit is PNMW, the cost of electricity-generating of fired power generating unit is cgMember/kWh, rate for incorporation into the power network is pgMember/kWh；Work as machine
Cost of electricity-generating coefficient of alteration is k after group output drop, then fired power generating unit income is F before Generation Rights Tradethermal：
Fthermal=52% (pg-cg)PN (5)
A) first grade of quotation scope：
It is F ' to carry out fired power generating unit income after Generation Rights Tradethermal：
F′thermal=(52-x) % (pg-cgk)PN+PNX%pt1 (6)
Carry out after Generation Rights Trade, the income that fired power generating unit is obtained is more than before Generation Rights Trade：
F′thermal≥Fthermal (7)
First grade of Generation Rights Trade bid price is generated electricity into for the portion capacity of 52% ＞ rate of load condensates >=45%, fired power generating unit
This variation coefficient of alteration k takes 1.2, and calculating solves first grade of quotation pt1：
pt1≥0.464 (8)
Quotation scope that first grade of Generation Rights Trade bid then is set as 0~0.5 yuan/kWh；
B) second gear quotation scope (7<x≤12)：
Second gear Generation Rights Trade bid price for the portion capacity of 45% ＞ rate of load condensates >=40%, rate of load condensate 45% to
Part is settled accounts according to first grade of price between 52%, therefore fired power generating unit income is after Generation Rights Trade：
F′thermal=(52-x) % (pg-cgk)PN+ 7%PN·pt1+ (x-7) %PN·pt2 (9)
Fired power generating unit cost of electricity-generating changes coefficient of alteration k and takes 1.5, solves second gear quotation pt2：
pt2≥0.631 (10)
Quotation scope that second gear Generation Rights Trade bids then is set as 0.5~0.7 yuan/kWh；
C) third gear quotation scope (x>12)：
The price that third gear Generation Rights Trade is bidded is directed to thermal motor after the portion capacities of rate of load condensate ＜ 40%, Generation Rights Trade
Organizing income is：
Fired power generating unit cost of electricity-generating changes coefficient of alteration k and takes 2.1, solves third gear quotation pt3：
pt3≥0.808 (12)
The quotation scope of third gear Generation Right trade at competitive price is then set as 0.7~0.9 yuan/kWh.
Further improve of the invention is, if having temporary needs in step IV, is carried out according to Bidding order interim
Call.
Further improve of the invention is that the thermal power plant i contribution quotas upper limit is often spent during being Generation Rights Trade in step V
Electricity is assumed charge no more than 0.5 times thermoelectricity desulfurization stake electrovalence；The new energy electric field j stand amount of money upper limit is assumed charge not for often degree electricity
More than thermoelectricity desulfurization stake electrovalence.
Compared with prior art, the device have the advantages that：" the net province that the promotion new energy that the present invention is used is dissolved
Cooperation " mechanism of exchange combines existing grid dispatching management actual conditions, proposes that first unit is generated electricity inside the province by saving tune tissue
Trade at competitive price is weighed, then by the scheme of regional network company organization transprovincially Generation Rights Trade." net saves cooperation " combines " based on net "
The advantage of pattern and " save be entity " pattern, unified running platform, all unit variable capacity data sharings, be conducive to grasping and
Transfer the whole network peak regulation resource.Hierarchical management model is used simultaneously, and regional network company is responsible for peak regulation platform management transprovincially, and each province adjusts negative
Duty inside the province merchandise by peak regulation.Calculate rational Generation Right to bid participation volumetric(al) standards, promote the product that fired power generating unit participates in peak regulation
Polarity.Require that peak regulation quotation reports and submits capacity with the 5% of rated capacity to be minimum in peak regulation Bidding Mechanism, it is to avoid directly improve paid
After peak regulation boundary, fired power generating unit still reports and submits paid peak capacity constant, the phenomenon received subsidies more.Meanwhile, according to unit generation
Power transaction should obtain income and study and define trade at competitive price price cap, make unit avoid malice to offer while obtaining reasonable benefit
The occurrence of.
Brief description of the drawings
Fig. 1 is unit share the expenses and shares upper limit comparison diagram.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.Province (area) in the present invention is to save or oneself
Control area.
" net saves cooperation " pattern is responsible for Generation Rights Trade inside the province by (or autonomous region) Utilities Electric Co. of each province, by regional network company
It is responsible for transprovincially merchandising.The common platform for trade at competitive price is built by regional network company, and is responsible for platform management.Provinces (regions) electric power
Company is responsible in platform setting up substation, and undertakes the daily management of substation.Each power plant reports next day to generate electricity in platform daily
The related of power transaction participates in information.Comprise the following steps that：
Step I：Bidding and new energy are exerted oneself prediction a few days ago.Each power plant reports Generation Rights Trade quotation and machine a few days ago
The adjustable interval of group active power output, forms according to quotation height and calls sequencing.Capable load prediction itself, wind are transferred in Provinces (regions)
Electricity and photovoltaic power generation output forecasting.
The method of Bidding is as follows a few days ago：
1) Generation Right is bidded participation volumetric(al) standards
Consider in power network actual motion, if frequently change unit output can be passed through to system sacurity dispatching and generating set
Ji operation brings very big pressure, therefore the present invention combines scheduling mode and thermal power unit operation feature, and setting unit is participating in sending out
When electricity power is bidded, transaction starting, which participates in capacity, should be not less than the 5% of unit rated capacity.
The paid peak regulation of regulation refers to fired power generating unit active power output in its rated capacity below 50% in existing " two detailed rules and regulations "
On Peak Modulation Modes.To encourage fired power generating unit to participate in the enthusiasm of Generation Rights Trade, Generation Right Bidding Mechanism considers appropriate drop
The standard (improving paid peak regulation boundary) that low unit is participated in business.
The peak regulation rate of fired power generating unit is general to be understood to the investigation of fired power generating unit and the run book analysis of power plant according to scholar
Between 30%~60%.The wherein minimum steady combustion load of oil of not throwing of 200/300MW units can drop to 50% or so, 600MW
The minimum steady combustion load of oil of not throwing of unit can drop to 40% or so.To encourage fired power generating unit to participate in the enthusiasm of Generation Rights Trade,
Consideration properly increases the depth peak regulation boundary of existing " unit output is in rated capacity below 50% ".
Existing paid peak regulation benchmark is the 50% of rated capacity, if this benchmark brings up to rated capacity (50+xc) %, xcFor
Benchmark raising amount, 0≤xc≤ 5, that is, assume to improve within 5%.When fired power generating unit is by transaction starting participation capacity (rated capacity
5%) declared, i.e. active (the 50+x dropped to as capacity of unitc- 5) during %, then from the (50+x of rated capacityc) % drops to
Benchmark rated capacity 50%, this xc% will be partially due to expense will be shared by new energy power plant caused by benchmark lifting；By existing
Benchmark rated capacity 50% drops to (50+xc- 5) %, this (5-xc) % partly do not join by new energy enterprise and still by (former reimbursement for expenses)
The Thermal Power Enterprises bidded with Generation Right are shared jointly.
In order to transfer the enthusiasm of new energy unit, its income obtained by Generation Rights Trade is set to be more than Generation Rights Trade
Cost.
The increased Generation Rights Trade cost △ C of new energy enterpriseP：
The income F that new energy enterprise is obtained by Generation Rights Tradewind：
Fwind=pwind(5-xc)ΔQ·H (2)
In formula, pthermalBidded quotation, p for the Generation Right of fired power generating unitwindNew energy rate for incorporation into the power network is represented, △ Q represent every
The brought capacity of exerting oneself of unit rated capacity 1% is adjusted, H represents the Generation Rights Trade duration.
The income of new energy enterprise is more than or equal to cost：
Fwind≥ΔCP (3)
Take new energy online pwindElectricity price is 0.61 yuan/kWh, and the Generation Right of fired power generating unit is bidded quotation pthermalFor 0.5
Member/kWh, can be obtained：
xc≤2.05 (4)
Obtained according to calculating, the scope that the standard (paid peak regulation boundary) that Generation Rights Trade participates in is improved should be less than
2.05%, therefore Generation Rights Trade participation standard is divided according to the 52% of rated capacity, under fired power generating unit active power output
The part for dropping to its rated capacity 52% and the above is free peak regulation, drops to subparticipation of the rated capacity below 52% and generates electricity
Power transaction.
2) Generation Rights Trade bid quotation scope determine
In Generation Right trade at competitive price market mechanism, in order to prevent Power Plant from unrestrictedly raising transaction value, report is set up
The valency upper limit.With the increase of unit output percentage regulation, the cost of electricity-generating of fired power generating unit will be in nonlinear incremental, in order to more
Unit generation power displacement behavior is targetedly encouraged, using stepping quotation mechanism, is divided into third gear, first grade：52% ＞ loads
Rate >=45%, second gear：45% ＞ rate of load condensate >=40%, third gear：Rate of load condensate ＜ 40%.
Assuming that the output of fired power generating unit declines x% by rate of load condensate 52%, then 0≤x≤7 are all at first grade；7<x≤12
When, preceding 7% at first grade, and rear (x-7) %, in second gear, works as x>When 12, preceding 7% at first grade, and centre 7~12% is second
Shelves, last (x-12) % is in third gear, and it is respectively p that third gear Generation Rights Trade, which is bidded and offered,t1Member/kWh, pt2Member/kWh, pt3Member/
KWh, the rated capacity of unit is PNMW, the cost of electricity-generating of fired power generating unit is cgMember/kWh, rate for incorporation into the power network is pgMember/kWh；Work as machine
Cost of electricity-generating coefficient of alteration is k after group output drop, then fired power generating unit income is F before Generation Rights Tradethermal：
Fthermal=52% (pg-cg)PN (5)
A) first grade of quotation scope (0≤x≤7)：
It is F ' to carry out fired power generating unit income after Generation Rights Tradethermal：
F′thermal=(52-x) % (pg-cgk)PN+PNX%pt1 (6)
Carry out after Generation Rights Trade, the income that fired power generating unit is obtained is more than before Generation Rights Trade：
F′thermal≥Fthermal (7)
First grade of Generation Rights Trade bid price is for the portion capacity of 52% ＞ rate of load condensates >=45%.I.e. fired power generating unit generates electricity
Cost fluctuation coefficient of alteration k takes 1.2, and calculating solves first grade of quotation pt1：
pt1≥0.464 (8)
Quotation scope that first grade of Generation Rights Trade bid then is set as 0~0.5 yuan/kWh；
B) second gear quotation scope：
Second gear Generation Rights Trade bid price is just for the portion capacity of 45% ＞ rate of load condensates >=40%, and rate of load condensate is 45%
Part is settled accounts according to first grade of price between to 52%, therefore fired power generating unit income is after Generation Rights Trade：
F′thermal=(52-x) % (pg-cgk)PN+ 7%PN·pt1+ (x-7) %PN·pt2 (9)
Because most of intermediate size unit has been difficult to directly reach such rate of load condensate, it is necessary to which oil is combustion-supporting to be kept by throwing
Set steady, therefore cost of electricity-generating will be substantially increased, its coefficient of alteration k takes 1.5, solves second gear quotation pt2：
pt2≥0.631 (10)
Quotation scope that second gear Generation Rights Trade bids then is set as 0.5~0.7 yuan/kWh.
C) third gear quotation scope：
The price that third gear Generation Rights Trade is bidded just for the portion capacities of rate of load condensate ＜ 40%, remaining peak capacity according to
Each shelves price is settled accounts,
Therefore fired power generating unit income is after Generation Rights Trade：
The interval most of unit of third gear peak regulation has been difficult to stable operation, it is necessary to by throwing oily combustion-supporting holding set steady,
And service life of equipment will be affected, operation difficulty is increased.Cost of electricity-generating will be substantially increased, and its coefficient of alteration k takes 2.1, solution
Obtain third gear quotation pt3：
pt3≥0.808 (12)
The quotation scope of third gear Generation Right trade at competitive price is then set as 0.7~0.9 yuan/kWh.
The quotation scope such as table 1 of comprehensive third gear Generation Rights Trade：
The Generation Rights Trade Bidding scope of table 1
Step II：Unit generation weighs trading program inside the province a few days ago for formulation.Adjust to be offered according to power plant of this province and sort in Provinces (regions)
And load prediction, carry out unit generation power transaction inside the province and arrange.
Step III：Formulate scheme of arrangement of transprovincially merchandising.Each province (or autonomous region), which is adjusted, to be completed after transaction inside the province, and this province is handed over
Easy information summarizing and reporting regional network company.Such as transaction results can not meet demand inside the province, then transprovincially sent out to the application of regional network company
Electricity power transaction.Regional network company is transprovincially merchandised according to Provinces (regions) power plant peak regulation resource.
Step IV：Real-time calling.According to the transaction inside the province formulated a few days ago and transprovincially trading program, is in a few days adjusted in real time
With.Can temporarily it be called according to Bidding order if any temporary needs.
Step V：Tranaction costs are calculated.After the completion of unit is called, Generation Rights Trade inside the province is carried out by province (area) Utilities Electric Co.
The calculating of expense, transprovincially tranaction costs calculated by regional network company.
The progress of province (area) Utilities Electric Co. inside the province adopt by the calculating of Generation Rights Trade expense and the calculating of tranaction costs transprovincially
With the following method：
The participant of Generation Rights Trade is fired power generating unit and new energy unit.Wherein because fired power generating unit capacity and model are poor
Different, some thermal power plant units or small unit are difficult to participate in Generation Rights Trade.Consider that fired power generating unit has peak-load regulating obligation, to ginseng
Certain reimbursement for expenses should be obtained when selling Generation Right with the fired power generating unit of Generation Rights Trade, and the reimbursement for expenses is by having neither part nor lot in
The thermal power plant and new energy power plant of Generation Rights Trade share jointly.Wherein when system has peak regulation demand, fired power generating unit is exerted oneself more
Greatly, the peak regulation contribution to system is smaller, should bear more share the expenses.Therefore thermal power plant's actual load rate is shared according to participation
Difference, point third gear is increased successively shares proportion, carry out " staged " share.
" staged " amendment is carried out to the fired power generating unit generated energy that participation is shared first：
In formula, Wi tFor generated energy after thermal power plant i amendments；Wl iIt is thermal power plant i in l grades of actual power generations；klFor l grades of amendment systems
Number, l=1,2 or 3.Wherein, it is first grade that rate of load condensate, which is less than 70% part electricity, rate of load condensate part electricity between 70% to 80%
Measure as second gear, it is third gear that rate of load condensate, which is more than 80% part electricity, and the correction factor of correspondence third gear is respectively k1=1, k2=
1.5、k3=2.
Then thermal power plant i contribution quota fiFor：
In formula, FallFor Generation Rights Trade total amount；Wj wFor new energy power plant j generated energy.Assuming that having i thermal power plant, j
Individual new energy power plant.Then i is thermal power plant's number, and j is new energy power plant number.
Meanwhile, it is the operation for not having a strong impact on electricity power enterprise, gold is shared to thermal power plant and new energy electric field Generation Rights Trade
Volume is respectively provided with the upper limit.Thermal power plant's contribution quota upper limit is often spent electricity during being Generation Rights Trade and assumed charge no more than 0.5 times thermoelectricity
Desulfurization stake electrovalence；The new energy electric field stand amount of money upper limit is assumed charge no more than thermoelectricity desulfurization stake electrovalence for often degree electricity.
Illustrate the specific implementation step of the present invention with one embodiment below.
Certain provincial power network is started shooting 11 in certain typical day 200MW capacity above fired power generating unit plan, and exert oneself about 2150MW, newly
At energy power plant start 8, exerted oneself 550MW, and tissue Generation Rights Trade is seriously needed because abandoning new energy situation.According to of the present invention
Generation Rights Trade Bidding Mechanism, implementing procedure is as follows：
(1) new energy prediction and Bidding
Exerted oneself prediction according to load prediction a few days ago and power supply, it is more serious because abandoning new energy phenomenon, plan fired power generating unit
Reduction is exerted oneself 200MW.After quotation, there are 4 unit applications to provide Generation Rights Trade quotation, such as table 2：
Table 2 inside the province offer by fired power generating unit Generation Rights Trade
(2) unit generation power transaction inside the province is arranged
The province adjusts understands that fired power generating unit provides Generation Rights Trade capacity 63MW, nothing according to the quotation of the Generation Rights Trade of each power plant
Method meets new energy demand, and all participation units are both needed to call.It can thus be concluded that first grade go out clear valency for this grade of highest quotation i.e.
0.5 yuan/kWh.
(3) Generation Rights Trade transprovincially is applied for
Because there is Generation Rights Trade demand 200MW in the province, power plant units can provide capacity 63MW altogether inside the province, still lack
137MW Swap of Generation Right capacity by the regional network company organization Lin Sheng generation assets that can merchandise, it is necessary to transprovincially be merchandised.Region
Net company organization its Zhi Tiao power plant and Swap of Generation Right capacity 85MW is provided, Lin Sheng transprovincially merchandises 52MW, wherein directly adjusting power plant load
Rate drops to second gear, its quote situations such as table 3：
Table 3 directly adjusts the quotation of fired power generating unit Generation Rights Trade
(4) real-time calling and expense are calculated
Regional network company and province (area) adjust carries out Real-Time Scheduling according to Generation Rights Trade plan, and then according to participation electricity
Measure the calculating of carry out expense and distribution.The power plant for participating in selling Generation Right obtains reimbursement for expenses (being calculated by one hour electricity) such as table 4：
Table 4 participates in selling Generation Right power plant acquisition reimbursement for expenses
8.53 ten thousand yuan of Generation Right common property life reimbursement for expenses (being calculated by one hour electricity) is sold by thermal power plant.According to tranaction costs
Distribution method, the reimbursement for expenses of generation is by 7 fired power generating units and 8 new energy power plant of non-participating Generation Rights Trade according to generating
Pro rata distribution is measured, each unit shares result and to share the upper limit as shown in Figure 1.
Calculate each unit and answer share the expenses (being calculated by one hour electricity), unit maximum share the expenses is 0.88 ten thousand yuan,
The unit share the expenses upper limit is 3.53 ten thousand yuan, and minimum share the expenses is 0.21 ten thousand yuan, and the unit share the expenses upper limit is 1.68
Wan Yuan.All units answer contribution quota much smaller than sharing the upper limit, actual production of the Generation Rights Trade allocation of expenditures to power plant
Obvious influence is not produced.
It can be seen that by Generation Right trade at competitive price mechanism, fired power generating unit participates in selling Generation Right so that new energy unit
Exert oneself and 750MW is brought up to by original plan 550MW, abandon new energy situation and significantly alleviated, be effectively improved clean energy resource
Dissolve.The reimbursement for expenses for participating in the fired power generating unit acquisition of Generation Rights Trade is far above with electricity gene-ration revenue, obtains bigger
Income.
Claims (7)
1. a kind of Generation Rights Trade method for promoting new energy to dissolve, it is characterised in that comprise the following steps：
Step I：Bidding and new energy are exerted oneself prediction a few days ago：
Each power plant reports Generation Rights Trade to offer and the adjustable interval of unit active power output a few days ago, is formed and called according to quotation height
Sequencing；Each province transfers in capable load prediction itself, wind-powered electricity generation and photovoltaic power generation output forecasting；
Step II：Unit generation weighs trading program inside the province a few days ago for formulation；
Each province adjusts to be offered according to power plant of this province and sorted and load prediction, carries out unit generation power transaction inside the province and arranges；
Step III：Formulate scheme of arrangement of transprovincially merchandising；
Each province, which is adjusted, to complete after transaction inside the province, by Transaction Information summarizing and reporting regional network company of this province；As transaction results can not inside the province
Demand is met, then applies for Generation Rights Trade transprovincially to regional network company, regional network company enters according to each province power plant peak regulation resource
Row is transprovincially merchandised；
Step IV：Real-time calling：
According to the transaction inside the province formulated a few days ago and transprovincially trading program, in a few days carries out real-time calling；
Step V：Tranaction costs are calculated：
After the completion of unit is called, the calculating of Generation Rights Trade expense inside the province is carried out by provincial electric power company, transprovincially tranaction costs are by area
Yu Wang companies calculate；
The computational methods method of Generation Rights Trade expense and transprovincially tranaction costs is as follows inside the province：
According to the difference for participating in sharing thermal power plant's actual load rate, point third gear is increased successively shares proportion, carries out staged and shares；
Staged amendment is carried out to the fired power generating unit generated energy that participation is shared first：
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In formula, Wi tFor generated energy after thermal power plant i amendments；Wl iIt is thermal power plant i in l grades of actual power generations；klFor l grades of correction factors, l
=1,2 or 3；Wherein, it is first grade that rate of load condensate, which is less than 70% part electricity, and rate of load condensate part electricity between 70% to 80% is
Second gear, it is third gear that rate of load condensate, which is more than 80% part electricity, and the correction factor of correspondence third gear is respectively k1=1, k2=1.5, k3
=2；
Then thermal power plant i contribution quota fiFor：
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In formula, FallFor Generation Rights Trade total amount；For new energy power plant j generated energy, i is thermal power plant's number, and j is new energy
Source power plant number.
2. a kind of Generation Rights Trade method for promoting new energy to dissolve according to claim 1, it is characterised in that step I
Middle Generation Rights Trade quotation is obtained by procedure below：
1) Generation Right is bidded participation volumetric(al) standards：
Paid peak regulation benchmark is the 50% of rated capacity, if this benchmark brings up to rated capacity (50+xc) %, xcOn the basis of improve
Amount, 0≤xc≤ 5, when fired power generating unit is declared by rated capacity 5%, i.e. active (the 50+x dropped to as capacity of unitc-
5) during %, then from the (50+x of rated capacityc) % drops to benchmark rated capacity 50%, this xc% is partially due to benchmark lifting causes
Expense will be shared by new energy power plant；(50+x is dropped to by benchmark rated capacity 50%c- 5) %, this (5-xc) % parts are still
By new energy enterprise and have neither part nor lot in the Thermal Power Enterprises that Generation Right bids and share jointly；
Obtained according to calculating, the scope that the paid peak regulation boundary of Generation Rights Trade participating in is improved is less than 2.05%, therefore by Generation Right
Transaction participation standard divided according to the 52% of rated capacity, fired power generating unit active power output drop to its rated capacity 52% and
Part above is free peak regulation, drops to subparticipation Generation Rights Trade of the rated capacity below 52%；
2) Generation Rights Trade bid quotation scope determine：
Using stepping quotation mechanism, it is divided into third gear, first grade：52% ＞ rate of load condensate >=45%, second gear：45% ＞ rate of load condensates >=
40%, third gear：Rate of load condensate ＜ 40%；And the quotation scope that each grade of Generation Rights Trade is bidded is determined respectively.
3. a kind of Generation Rights Trade method for promoting new energy to dissolve according to claim 2, it is characterised in that step 1)
Middle calculating process is as follows：
The increased Generation Rights Trade cost △ C of new energy enterpriseP：
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The income F that new energy enterprise is obtained by Generation Rights Tradewind：
Fwind=pwind(5-xc)ΔQ·H (2)
In formula, pthermalBidded quotation, p for the Generation Right of fired power generating unitwindNew energy rate for incorporation into the power network is represented, △ Q represent often to adjust
The brought capacity of exerting oneself of unit rated capacity 1%, H represents the Generation Rights Trade duration；
The income of new energy enterprise is more than or equal to cost：
Fwind≥ΔCP (3)
Take new energy online pwindElectricity price is 0.61 yuan/kWh, and the Generation Right of fired power generating unit is bidded quotation pthermalFor 0.5 yuan/
KWh, is obtained：
xc≤2.05 (4)
4. a kind of Generation Rights Trade method for promoting new energy to dissolve according to claim 2, it is characterised in that step 2)
It is middle determine that each grade of Generation Rights Trade is bidded the condition of quotation scope be：The percentage regulation of exerting oneself of fired power generating unit between 30%~
Between 60%, wherein 200/300MW units are minimum does not throw oily steady combustion load and drops to that 50%, 600MW units are minimum not to throw oily steady combustion
Load drops to 40%.
5. a kind of Generation Rights Trade method for promoting new energy to dissolve according to claim 4, it is characterised in that step 2)
The middle detailed process for determining the quotation scope that each grade of Generation Rights Trade is bidded is as follows：
Assuming that the output of fired power generating unit declines x% by rate of load condensate 52%, then 0≤x≤7 are all at first grade；7<It is preceding during x≤12
7% at first grade, and rear (x-7) %, in second gear, works as x>When 12, preceding 7% at first grade, and centre 7~12% is in second gear, finally
(x-12) % is in third gear, and it is respectively p that third gear Generation Rights Trade, which is bidded and offered,t1Member/kWh, pt2Member/kWh, pt3Member/kWh, unit
Rated capacity be PNMW, the cost of electricity-generating of fired power generating unit is cgMember/kWh, rate for incorporation into the power network is pgMember/kWh；When under unit output
Cost of electricity-generating coefficient of alteration is k after drop, then fired power generating unit income is F before Generation Rights Tradethermal：
Fthermal=52% (pg-cg)PN (5)
A) first grade of quotation scope：
It is F ' to carry out fired power generating unit income after Generation Rights Tradethermal：
F′thermal=(52-x) % (pg-cgk)PN+PNX%pt1 (6)
Carry out after Generation Rights Trade, the income that fired power generating unit is obtained is more than before Generation Rights Trade：
F′thermal≥Fthermal (7)
First grade of Generation Rights Trade bid price becomes for the portion capacity of 52% ＞ rate of load condensates >=45%, fired power generating unit cost of electricity-generating
Dynamic coefficient of alteration k takes 1.2, and calculating solves first grade of quotation pt1：
pt1≥0.464 (8)
Quotation scope that first grade of Generation Rights Trade bid then is set as 0~0.5 yuan/kWh；
B) second gear quotation scope：
Second gear Generation Rights Trade bid price is for the portion capacity of 45% ＞ rate of load condensates >=40%, and rate of load condensate is 45% to 52%
Between part settled accounts according to first grade of price, therefore fired power generating unit income is after Generation Rights Trade：
F′thermal=(52-x) % (pg-cgk)PN+ 7%PN·pt1+ (x-7) %PN·pt2 (9)
Fired power generating unit cost of electricity-generating changes coefficient of alteration k and takes 1.5, solves second gear quotation pt2：
pt2≥0.631 (10)
Quotation scope that second gear Generation Rights Trade bids then is set as 0.5~0.7 yuan/kWh；
C) third gear quotation scope：
The price that third gear Generation Rights Trade is bidded is directed to fired power generating unit after the portion capacities of rate of load condensate ＜ 40%, Generation Rights Trade and received
Benefit is：
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Fired power generating unit cost of electricity-generating changes coefficient of alteration k and takes 2.1, solves third gear quotation pt3：
pt3≥0.808 (12)
The quotation scope of third gear Generation Right trade at competitive price is then set as 0.7~0.9 yuan/kWh.
6. a kind of Generation Rights Trade method for promoting new energy to dissolve according to claim 1, it is characterised in that step IV
If in have temporary needs, called temporarily according to Bidding order.
7. a kind of Generation Rights Trade method for promoting new energy to dissolve according to claim 1, it is characterised in that step V
The middle thermal power plant i contribution quotas upper limit is often spent electricity and assumed charge no more than 0.5 times thermoelectricity desulfurization mark post electricity during being Generation Rights Trade
Valency；The new energy electric field j stand amount of money upper limit is assumed charge no more than thermoelectricity desulfurization stake electrovalence for often degree electricity.
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| CN111861631A (en) * | 2020-06-03 | 2020-10-30 | 中国电力科学研究院有限公司 | Inter-provincial power generation right trading method and system for promoting consumption of various energy sources |
| CN111882146A (en) * | 2020-06-10 | 2020-11-03 | 国家电网公司华北分部 | Expense allocation method and calculation equipment for thermal power unit transformation |
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