CN106505614A - The photovoltaic generation regulating strategy of user's maximizing the benefits under multi-constraint condition - Google Patents
The photovoltaic generation regulating strategy of user's maximizing the benefits under multi-constraint condition Download PDFInfo
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- CN106505614A CN106505614A CN201610975592.8A CN201610975592A CN106505614A CN 106505614 A CN106505614 A CN 106505614A CN 201610975592 A CN201610975592 A CN 201610975592A CN 106505614 A CN106505614 A CN 106505614A
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- H02J3/383—
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
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- 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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Abstract
The present invention relates under a kind of multi-constraint condition user's maximizing the benefits photovoltaic generation regulating strategy, its technical characterstic includes：Set up the photovoltaic generation regulation-control model of following user's maximizing the benefits：Personal part Economic Benefit Model, the upper mesh portions Economic Benefit Model of remaining electricity, energy storage section Economic Benefit Model, the electricity volume restricted model of dispatching of power netwoks permission, the maximized optimization aim model of total benefit, and the numerical value of the upper period ammeter metering of foundation Ez own demands, En photovoltaic generation electricity volumes, Ecn energy storage devices electricity volume and Ecz energy storage device own demands optimizes and draws x=[x as optimized initial value1,x2,x3,x4,x5], E=[Ez,En,Ecn,Ecz], reach user's economic benefit XAMaximize target.The present invention is reasonable in design, which is according to the photovoltaic generation rate for incorporation into the power network and sales rate of electricity supplied to consumers level in certain period, consider dispatching of power netwoks constraint and storage device capacity-constrained, the generating of auto-control photovoltaic generating system, online, personal, energy storage strategy improve user's benefit.
Description
Technical field
The invention belongs under technical field of photovoltaic power generation, especially a kind of multi-constraint condition user's maximizing the benefits photovoltaic
Generating regulating strategy.
Background technology
In recent years, solar electrical energy generation is helped as a national important industry, is quickly grown.By the end of 2015 11
Month, the accumulative installed capacity of China's solar electrical energy generation reaches 34.49GW, but due to transfer passage capacity limit and solar electrical energy generation fluctuation
The many factors such as property, exist.As the quickening of energy the Internet is advanced, distributed energy is connect in a large number
Enter, clean energy resource of making greater efforts to promote is dissolved, need research solar power system the best adjustment strategy badly, increase user and be benefited, carry
Enthusiasm of the high user using clean energy resource.Meanwhile, also photovoltaic generation online stake electrovalence is adjusted in good time for policy making department
Certain reference is provided with the relation of sales rate of electricity supplied to consumers.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, there is provided user's maximizing the benefits under a kind of multi-constraint condition
Photovoltaic generation regulating strategy, solve under the alterable electricity price such as time-of-use tariffs and Spot Price, consider dispatching of power netwoks
Auto-control problem between constraint and storage device capacity-constrained and generating, online, personal, energy storage.
The present invention solves its technical problem and takes technical scheme below to realize：
A kind of photovoltaic generation regulating strategy of user's maximizing the benefits under multi-constraint condition, comprises the following steps：
Step 1, the photovoltaic generation regulation-control model for setting up following user's maximizing the benefits：
Use by oneself part Economic Benefit Model：
Xz=x1·Ez·Rs
Wherein：XzFor part economic benefit of using by oneself in a period, EzFor own demand in the period, RsDomestic for the period
Sale of electricity valency；x1It is used for determining whether photovoltaic power generation quantity is used for using by oneself in the period for personal decision variable；
(2) remaining electricity goes up mesh portions Economic Benefit Model：
Xn=x2·En·Rn
Wherein：XnFor the upper mesh portions economic benefit of remaining electricity, E in a periodnFor the upper mesh portions electricity of remaining electricity, R in the periodn
For rate for incorporation into the power network；x2For decision variable of surfing the Net, for determining in the period photovoltaic power generation quantity whether for remaining electricity online；
(3) energy storage section Economic Benefit Model, including：
Economic benefit X in energy storage device in the electricity period for onlinecnModel：
Xcn=x3·Ecn·Rn
In energy storage device, electricity is used for personal economic benefit X within the periodczModel：
XCZ=x4·ECZ·Rn
EY=Ef-x2·En-x1·Ez
Wherein：XcnFor being used for the economic benefit of online, X in electricity period in energy storage device in the periodczFor the period
For personal economic benefit, E in the electricity period in interior energy storage devicefFor photovoltaic power generation quantity in the period, sent out according to conventional
Electric data prediction is obtained；EcnFor the electricity that energy storage device in the period is used for online, EczIt is used for certainly for energy storage device in the period
Electricity, EYFor electricity of the solar photovoltaic generation system storage in energy storage device, E in the periodCCStart for the period
Electricity in moment energy storage device, ECMFor the dump energy in the period Mo energy storage device, maximum is less than the energy storage device upper limit
Valuex3Surf the Net decision variable for energy storage, for whether determining in the period energy storage electricity for surfing the Net；x4Personal for energy storage
Decision variable, for determining whether energy storage electricity is used for using by oneself in the period；
(4) the electricity volume restricted model that dispatching of power netwoks is allowed：
Wherein：EDFor total electricity volume in the period, in the higher limit that dispatching of power netwoks is allowedWithLower limit it
Between, EnFor the upper mesh portions electricity of remaining electricity, E in the periodcnFor the electricity that energy storage device in the period is used for online；
(5) the maximized optimization aim model of total benefit：
XA=XZ+Xn+Xcn+XCZ
X=[x1,x2,x3,x4,x5], represented with 0/1
Step 2, within certain period, according to Ez own demands, En photovoltaic generation electricity volumes, Ecn energy storage devices online electricity
The numerical value of the upper period ammeter metering of amount and Ecz energy storage device own demands is sent out according to above-mentioned photovoltaic as optimized initial value
Electric regulation-control model, optimizes and draws x=[x1,x2,x3,x4,x5], E=[Ez,En,Ecn,Ecz], reach user's economic benefit XAMaximum
Change target, so as to realize the photovoltaic generation regulating strategy of user's maximizing the benefits.
Advantages of the present invention and good effect are：
The present invention is reasonable in design, and which is according to the photovoltaic generation rate for incorporation into the power network and sales rate of electricity supplied to consumers level in certain period, comprehensive
Close consideration dispatching of power netwoks constraint and storage device capacity-constrained, the generating of auto-control photovoltaic generating system, online, personal, storage
Can be tactful, user's benefit is improve, especially in the case of photovoltaic generation rate for incorporation into the power network and sales rate of electricity are similar to Spot Price, should
Dominance of strategies effect will be more notable.
Specific embodiment
Below the embodiment of the present invention is further described：
A kind of photovoltaic generation regulating strategy of user's maximizing the benefits under multi-constraint condition, comprises the following steps：
Step 1, the photovoltaic generation regulation-control model for setting up user's maximizing the benefits
In the present embodiment, solar photovoltaic generation system is using the pattern that generates power for their own use, remaining electricity is surfed the Net, photovoltaic generation system
Energy storage device is carried in system.Photovoltaic generation regulation-control model is included with drag
(1) personal part Economic Benefit Model.
Economic benefit X of solar energy power generating amount personal part within a periodzComputational methods are as follows：
Xz=x1·Ez·Rs(1)
Wherein：XzFor part economic benefit of using by oneself in the period, unit is：Unit；EzFor own demand in the period, unit
For：Kilowatt hour；RsFor sales rate of electricity in the period (time-of-use tariffs or Spot Price), unit is：Unit/kilowatt hour；x1Determine for personal
Plan variable, for determining whether photovoltaic power generation quantity is used for using by oneself in the period.
(2) the upper mesh portions Economic Benefit Model of electricity more than.
The grid-connected rule of solar energy photovoltaic system have to comply with generate power for their own use, the principle of remaining electricity online, and in order to ensure use
Electric safety, remaining electricity preferentially ensure that energy storage device is full of when without dispatching of power netwoks demand.Economic benefit X of remaining electric upper mesh portionsnMeter
Calculation method is as follows：
Xn=x2·En·Rn(2)
Wherein：XnMesh portions economic benefit is gone up for remaining electricity in the period, unit is：Unit；EnFor the upper wet end of remaining electricity in the period
Point electricity, unit is：Kilowatt hour；RnFor rate for incorporation into the power network, unit is：Unit/kilowatt hour；x2For surf the Net decision variable, for determining this
In period, whether photovoltaic power generation quantity is for remaining electricity online.
(3) energy storage section Economic Benefit Model.
In energy storage device, electricity is used for economic benefit X of online within a periodcnComputational methods are as follows：
Xcn=x3·Ecn·Rn(3)
In energy storage device, electricity is used for personal economic benefit X within the periodczComputational methods are as follows：
XCZ=x4·ECZ·Rn(4)
EY=Ef-x2·En-x1·Ez(5)
Wherein：XcnFor being used for the economic benefit of online in electricity period in energy storage device in the period, unit is：Unit；
XczFor being used for personal economic benefit in electricity period in energy storage device in the period, unit is：Unit；EfFor light in the period
Volt generated energy, obtains according to conventional generating data prediction；EcnIt is used for the electricity that surfs the Net for energy storage device in the period, unit is：
Kilowatt hour；EczIt is used for personal electricity for energy storage device in the period, unit is：Kilowatt hour；EYFor solar energy in the period
Photovoltaic generating system stores the electricity in energy storage device, and unit is：Kilowatt hour；ECCFor in the start time period energy storage device
Electricity, unit is：Kilowatt hour；ECMFor the dump energy in the period Mo energy storage device, maximum is less than energy storage device higher limitUnit is：Kilowatt hour；x3Surf the Net decision variable for energy storage, for whether determining in the period energy storage electricity for surfing the Net；
x4For the personal decision variable of energy storage, for whether determining in the period energy storage electricity for using by oneself.
(4) the electricity volume restricted model that dispatching of power netwoks is allowed：
Wherein：EDFor total electricity volume in the period, in the higher limit that dispatching of power netwoks is allowedWithLower limit it
Between, unit is：Kilowatt hour；EnMesh portions electricity is gone up for remaining electricity in the period, unit is：Kilowatt hour；EcnFor energy storage in the period
Device is used for the electricity of online, and unit is：Kilowatt hour；
(5) the maximized optimization aim model of total benefit.
Total benefit computational methods are as follows.
XA=XZ+Xn+Xcn+XCZ(8)
X=[x1,x2,x3,x4,x5], (9) are represented with 0/1
Step 2, within certain period, according to [Ez own demands, En photovoltaic generation electricity volumes, Ecn energy storage devices online electricity
Amount, Ecz energy storage device own demands] numerical value that measures of upper period ammeter as optimized initial value, according to above-mentioned photovoltaic generation
Regulation-control model, optimizes and draws x=[x1,x2,x3,x4,x5], E=[Ez,En,Ecn,Ecz], reach user's economic benefit XAMaximize
Target.So as to realize the photovoltaic generation regulating strategy of user's maximizing the benefits.
Below with the advantage of an instantiation explanation present invention：Certain enterprise's solar photovoltaic generation system installed capacity is
200kW, generating effective time is about 9 within one day:00～16:00, this area's photovoltaic rate for incorporation into the power network is 0.95 yuan/kilowatt hour.The enterprise
Industry equipment electricity consumption situation see the table below own demand, execute general industry and commerce (1～10kV) time-of-use tariffs, peak 1.3454 (unit/kilowatt
When), flat 0.8999 (unit/kilowatt hour), paddy 0.4744 (unit/kilowatt hour), time peak period：08:00-11:00、18:00-
23:00；Flat section period of time：07:00-08:00、11:00-18:00；The low-valley interval time：23:00-07:00.Energy storage device
Maximum capacity conversion is 100kWh.According to the regulating strategy that this patent is proposed, more than enterprise's solar photovoltaic generation system on electricity
Net maximum return is 1357.552 yuan, and the result of decision specifically sees attached list 1.
1 solar photovoltaic generation system generated energy regulating strategy result of implementation of subordinate list
It is emphasized that embodiment of the present invention is illustrative, rather than determinate, therefore the present invention is wrapped
The embodiment for being not limited to described in specific embodiment is included, every by those skilled in the art's technology according to the present invention scheme
The other embodiment for drawing, also belongs to the scope of protection of the invention.
Claims (1)
1. under a kind of multi-constraint condition user's maximizing the benefits photovoltaic generation regulating strategy, it is characterised in that including following step
Suddenly：
Step 1, the photovoltaic generation regulation-control model for setting up following user's maximizing the benefits：
Use by oneself part Economic Benefit Model：
Xz=x1·Ez·Rs
Wherein：XzFor part economic benefit of using by oneself in a period, EzFor own demand in the period, RsFor the period domestic sale of electricity
Valency；x1It is used for determining whether photovoltaic power generation quantity is used for using by oneself in the period for personal decision variable；
(2) remaining electricity goes up mesh portions Economic Benefit Model：
Xn=x2·En·Rn
Wherein：XnFor the upper mesh portions economic benefit of remaining electricity, E in a periodnFor the upper mesh portions electricity of remaining electricity, R in the periodnFor upper
Net electricity price；x2For decision variable of surfing the Net, for determining in the period photovoltaic power generation quantity whether for remaining electricity online；
(3) energy storage section Economic Benefit Model, including：
Economic benefit X in energy storage device in the electricity period for onlinecnModel：
Xcn=x3·Ecn·Rn
In energy storage device, electricity is used for personal economic benefit X within the periodczModel：
XCZ=x4·ECZ·Rn
EY=Ef-x2·En-x1·Ez
Wherein：XcnFor being used for the economic benefit of online, X in electricity period in energy storage device in the periodczFor storing up in the period
For personal economic benefit, E in the electricity period in energy devicefFor photovoltaic power generation quantity in the period, according to conventional generating number
It is predicted that obtaining；EcnFor the electricity that energy storage device in the period is used for online, EczIt is used for for energy storage device in the period personal
Electricity, EYFor electricity of the solar photovoltaic generation system storage in energy storage device, E in the periodCCFor start time period
Electricity in energy storage device, ECMFor the dump energy in the period Mo energy storage device, maximum is less than energy storage device higher limitx3Surf the Net decision variable for energy storage, for whether determining in the period energy storage electricity for surfing the Net；x4Personal certainly for energy storage
Plan variable, for determining whether energy storage electricity is used for using by oneself in the period；
(4) the electricity volume restricted model that dispatching of power netwoks is allowed：
Wherein：EDFor total electricity volume in the period, in higher limit E that dispatching of power netwoks is allowedD maxAnd ED minBetween lower limit, EnFor
Remaining electric upper mesh portions electricity, E in the periodcnFor the electricity that energy storage device in the period is used for online；
(5) the maximized optimization aim model of total benefit：
XA=XZ+Xn+Xcn+XCZ
X=[x1,x2,x3,x4,x5], represented with 0/1
Step 2, within certain period, according to Ez own demands, En photovoltaic generation electricity volumes, Ecn energy storage devices electricity volume and
The numerical value of the upper period ammeter metering of Ecz energy storage device own demands is adjusted according to above-mentioned photovoltaic generation as optimized initial value
Control model, optimizes and draws x=[x1,x2,x3,x4,x5], E=[Ez,En,Ecn,Ecz], reach user's economic benefit XAMaximize mesh
Mark, so that realize the photovoltaic generation regulating strategy of user's maximizing the benefits.
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Cited By (1)
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Effective date of registration: 20170418 Address after: 300301 Tianjin City, Dongli District, Dongli Tourism Development Corporation building, room 233 Applicant after: Tianjin Energy Saving Service Co., Ltd. Applicant after: State Grid Tianjin Electric Power Company Applicant after: State Grid Corporation of China Address before: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant before: State Grid Tianjin Electric Power Company Applicant before: State Grid Corporation of China Applicant before: Tianjin Energy Saving Service Co., Ltd. |
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