CN107863784A - The dispatching method a few days ago of wind-powered electricity generation and electric automobile association system containing interruptible load - Google Patents
The dispatching method a few days ago of wind-powered electricity generation and electric automobile association system containing interruptible load Download PDFInfo
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- CN107863784A CN107863784A CN201711162667.1A CN201711162667A CN107863784A CN 107863784 A CN107863784 A CN 107863784A CN 201711162667 A CN201711162667 A CN 201711162667A CN 107863784 A CN107863784 A CN 107863784A
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Classifications
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- H02J3/386—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/63—Monitoring or controlling charging stations in response to network capacity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/64—Optimising energy costs, e.g. responding to electricity rates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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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
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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
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of wind-powered electricity generation containing interruptible load and the dispatching method a few days ago of electric automobile association system, this method to include：Characterize that wind-powered electricity generation is uncertain with probability scene, electric automobile of the structure comprising interruptible load and wind power system two-stage scheduling model a few days ago, wherein a stage includes conventional power unit start and stop state optimization, electric automobile collection charging and discharging state optimizes；Two-stage in the case where keeping first stage conventional power unit with electric automobile charging and discharging state, simulates the Real-time Balancing process of power network under different wind-powered electricity generation scenes, contributes and adjusts comprising conventional power unit, the adjustment of electric automobile collection charge-discharge electric power and interruptible load interruption amount.The wind-powered electricity generation electric automobile association system dispatching method a few days ago for the consideration interruptible load that the present invention provides, two kinds of user side resources of electric automobile and interruptible load are incorporated into power networks, can effectively reduce system operation cost.
Description
Technical field
The invention belongs to electric automobile cluster Optimized Operation field, more particularly, to a kind of wind containing interruptible load
The dispatching method a few days ago of electricity and electric automobile association system.
Background technology
To the year two thousand twenty, Wind Power In China installation is estimated to be up to 2.4 hundred million kW.Because wind-powered electricity generation has randomness, fluctuation, big rule
Mould wind-electricity integration can increase electric power system dispatching pressure, and cause serious wind electricity digestion problem.The thus regulation of normal power supplies
Ability and the traditional dispatching running way of power network can not meet scheduling and the consumption demand of large-scale wind power.Meanwhile with
The construction and popularization of electric automobile electric charging station, electric automobile are participated in dispatching of power netwoks as a kind of new burdened resource.So
And the extensive unordered charging of electric automobile easily causes the adverse effects such as network load " on peak plus peak ".Interruptible load, which is used as, to be needed
Ask side respond a kind of important form, can by pumping signal guide user change electricity consumption behavior, can smooth load curve, soon
Fast responsive electricity grid demand.Interruptible load is introduced in system, for the peak regulation for stabilizing wind-powered electricity generation and electric automobile uncertainty is brought
Pressure, reduction system cost have remarkable effect.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides one kind containing interruptible load, wind-powered electricity generation and
The dispatching method a few days ago of the association system of electric automobile, its object is to solve existing dispatching method a few days ago not and meanwhile consider can in
The technology that influence after disconnected load, electric automobile and wind power integration access system to system operation causes system operation cost high is asked
Topic.
To achieve the above object, the invention provides a kind of wind-powered electricity generation containing interruptible load and electric automobile association system
Dispatching method a few days ago, comprise the following steps：
Establish comprising normal under the discharge and recharge cost of electric automobile, single scene under conventional power unit start-up and shut-down costs, single scene
The object function of the first stage model of eolian is abandoned under the operating cost and single scene of rule unit；
Establish and participate in power system schedule constraints a few days ago comprising the first conventional constraint under single scene and electric automobile cluster
First stage model constraint；First stage model is completed to establish；
According to the output and list of conventional power unit under the start and stop state of first stage model acquisition conventional power unit, single scene
Electric automobile is contributed under individual scene；
Establish comprising conventional power unit start-up and shut-down costs, the conventional power unit operating cost under all wind-powered electricity generation scenes, in all wind
Eolian, interruptible load under all wind-powered electricity generation scenes reparation cost and electronic under all scenes are abandoned under electric field scape
The object function of the second stage model of automobile electric discharge cost；
Establish the second conventional constraint included under all wind-powered electricity generation scenes, interruptible load participates in constraint and electric automobile collection
Group participates in constraint, completes second stage model and establishes；
Gone out according to conventional power unit under the start and stop state of conventional power unit, single scene under second stage model, single scene
Electric automobile output obtains conventional power unit output adjustment amount, electric automobile collection under all wind-powered electricity generation scenes and filled under power and single scene
Discharge power adjustment amount and interruptible load interruption amount；
Wherein, the first conventional constraint includes power-balance constraint, Transmission Capacity Constraints, unit ramp loss, Unit Commitment
Constraint；Second conventional constraint includes power-balance constraint, unit ramp loss, abandons wind constraint；Electric automobile cluster participates in constraint
Including electric quantity of batteries of electric vehicle constraint, electric automobile power constraint and electric automobile number constraint in transport condition；
Interruptible load participates in that constraint includes interruption times constraint, the advance notification times of interruptible load constrain, interruptible load
Interruption amount constrains.
Preferably, according to formulaObtain the first rank
The object function of segment model.
Preferably, in the first conventional constraint：
Power-balance constraint is used to constrain the same conventional power unit of the summation of load and charging electric vehicle amount under single scene
The summation balance of delivery, wind-powered electricity generation delivery and electric automobile discharge capacity；
Transmission Capacity Constraints are used to constrain constraint circuit trnamission capacity in power transmission capacity of pow bound；
Unit ramp loss is contributed in creep speed for constraining conventional power unit in switching state；
Unit Commitment Constraint is used to constrain minimum time of the unit when start and stop state switches.
Preferably, in the first conventional constraint：
According to formulaObtain power-balance constraint；
According to formulaObtain Transmission Capacity Constraints；
According to formulaObtain unit ramp loss；
According to formulaObtain Unit Commitment Constraint.
Preferably, in electric automobile cluster participation power system a few days ago schedule constraints：
Electric quantity of batteries of electric vehicle constrain for constrain in the previous period total electricity, latter period charging electric vehicle
Amount, latter period electric automobile discharge capacity and latter period electric automobile during traveling power consumption sum and the total electricity of latter period
Balance；
Electric automobile power constraint is used to constrain between the discharge and recharge of single motor automobile and the total discharge and recharge of electric automobile
Relation；
The electric automobile quantity of transport condition is used for the quantity of electric automobile of the constraint in transport condition, in traveling shape
Relation between the maximum quantity of the electric car of state and the maximum quantity of electric car in transport condition.
Preferably, in electric automobile cluster participation power system a few days ago schedule constraints：
According to formula EminNEV≤Es,t≤EmaxNEVObtain the constraint of interruptible load interruption times；
According to formulaObtain electric automobile power constraint；
According toObtain the electric automobile quantity of transport condition.
Preferably, according to formula
Obtain
The object function of second stage model.
Preferably, in the second conventional constraint：
According to formulaObtain power
Constraints of Equilibrium；
According to formulaObtain unit ramp loss；
According to formulaWind constraint is abandoned in acquisition.
Preferably, in interruptible load participates in schedule constraints a few days ago：
Interruptible load interruption times are constrained for interruptible load interruption times in maximum interruption times；
Interruptible load advance notification times, which constrain, to be sent and shifts to an earlier date by interruptible load for constraining in interrupt instruction
Interruptible load interrupts after notifying the time；
The interruption amount of interruptible load is constrained for constraining interruptible load interruption amount in the range of the bound of interruption amount；
The interruptible load break period is constrained for constraining the interruptible load break period in break period bound.
Preferably, in interruptible load participates in schedule constraints a few days ago：
According to formulaObtain the constraint of interruptible load interruption times；
According to formulaObtain the constraint of interruptible load advance notification times；
According to formula PILj.min≤PILj,t,s≤PILj.maxObtain the constraint of interruptible load interruption amount；
According to formulaObtain the constraint of interruptible load break period.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
The present invention has following gain effect：
1st, in dispatching method a few days ago provided by the invention, interruptible load is considered as virtual robot arm, participated in containing wind-powered electricity generation-electronic
Automotive system is dispatched a few days ago, effectively solves not consider that interruptible load causes containing wind-powered electricity generation-electronic using existing dispatching method
The high technical problem of the operating cost of automotive system so that dispatching method obtains power system operating mode cost more a few days ago using this
It is low.
2nd, the present invention is uncertain by probability scene process wind-powered electricity generation, using two-stage model, only considers in the first stage
Single wind-powered electricity generation scene, using conventional power unit start and stop operating cost, abandon eolian and electric automobile and discharge cost as normal with first
Advise Unit commitment and electric automobile cluster participate in constraint, determine start and stop state and the discharge and recharge of electric automobile of conventional power unit,
In second stage model, interruptible load cost and interruptible load constraint are taken into account, obtained under different scenes often
Advise unit output, output of wind electric field and electric automobile to contribute, take into full account that wind-powered electricity generation and electric automobile are adjusted a few days ago to power system
Spend the influence brought.
3rd, the uncertainty of electric automobile during traveling quantity is handled in the present invention by ROBUST THEORY so that first stage model
Wind-powered electricity generation and electric automobile association system can be met with second stage model so that dispatching method obtains power network fortune a few days ago using this
Line mode is more economical.
4th, the present invention is applied to the scheduling modeling emulation a few days ago of the power system containing interruptible load, can be interrupted for guidance negative
Lotus, which participates in power network United Dispatching, some reference value.
Brief description of the drawings
Fig. 1 is the dispatching method a few days ago of the wind-powered electricity generation containing interruptible load and electric automobile association system provided by the invention
Flow chart；
Fig. 2 is that day part is in transport condition electric automobile quantity in dispatching cycle；
Fig. 3 is wind power output probability scene in dispatching method a few days ago.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Conflict can is not formed each other to be mutually combined.
Fig. 1 is the dispatching method a few days ago of the wind-powered electricity generation containing interruptible load and electric automobile association system provided by the invention
Flow chart, this method comprise the following steps：
Step 1：According to the interruptible load contract signed with user, it is determined that the interruptible load amount dispatched a few days ago is participated in,
Establish interruptible load and participate in scheduling model a few days ago；The object function of model and constraint are as follows：
Object function is with interruptible load compensation：
Wherein, FILRepresent interruptible load outage cost, NsRepresent wind-powered electricity generation number of scenes；ρsRepresent that wind-powered electricity generation scene s's is general
Rate；NTFor scheduling slot number；NILFor interruptible load sum；CIL,jFor interruptible load j interruption reimbursement for expenses；PILj,t,s
For interruptible load j scene s periods t interruption amount.
Interruptible load participate in constraint include interruptible load interruption times constrain, the prior notice of interruptible load when
Between constraint, interruptible load interruption amount constraint.Specific constraint is as follows：
(11) interruptible load interruption times constraint by interruptible load surrounding time section start and stop state determine can in
The interruption times of disconnected load, are represented with equation below：
Wherein, NjFor interruptible load j in scheduling slot maximum interruption times, vj,tIt is interruptible load j in period t
Start and stop state, vj,tFor 0-1 variables, vj,tInterrupt status, v are represented for 1j,tNormal condition is represented for 0.
(12) constraint of interruptible load advance notification times sends time point between interruption sart point in time used in instruction
Interruptible load start and stop state representation, represented with equation below：
Wherein, TjpreFor the advance notification times point of interruptible load, represent to be used to be connected to interrupt instruction TjpreAfter carry out
Load rejection；N represents that interrupt instruction sends the time；
(13) interruptible load interruption amount constrain, by interruptible load interruption amount interruption amount bound scope it
Between, represented with equation below：
PILj.min≤PILj,t,s≤PILj.max
Wherein, PILj.minRepresent interruptible load j minimal disruption amount, PILj.maxRepresent interruptible load j maximum interruption
Amount.
(14) the interruptible load break period constrains, can to constrain with the start and stop state of interruptible load in break period section
The interruptible load break period constrains.
TILj.min,TILj.maxInterruptible load j minimum, maximum break period are represented respectively, are existed by interruptible load j
Period t start and stop state describes the break period, and k represents to start the break period.
Step 2：Establish electric automobile cluster and participate in constraint, constraint includes electric quantity of batteries of electric vehicle constraint, electric automobile
Power constraint and the electric automobile number constraint in transport condition.Specific constraint is as follows：
(21) electric quantity of batteries of electric vehicle constrains, and passes through the total electricity, charging electric vehicle amount, electronic vapour in the previous period
Car discharge capacity and electric automobile during traveling power consumption, are represented with equation below：
EminNEV≤Es,t≤EmaxNEV
Wherein, Es,tFor the total electricity of electric automobile collection t periods under scene s；ηcFor charge efficiency,For the place of t periods
In the electric automobile quantity of charged state,For individual average charge power；λ is electric automobile unit mileage power consumption,
DavFor the average daily distance travelled of electric automobile, NEVRepresent electric automobile sum, NTR,tRepresent the electronic in transport condition of t periods
Automobile quantity；Es,t-1Represent electric automobile collection in the total electricity of t-1 periods, ηdFor discharging efficiency；Averagely put for individual
Electrical power；For the electric automobile quantity in discharge condition of t periods, Emin, EmaxThe lotus of batteries of electric automobile is represented respectively
Electricity condition upper and lower limit.
(22) electric automobile power constraint, closed between the discharge and recharge of single motor automobile and the total discharge and recharge of electric automobile
System, expression formula are as follows：
In formula,The t period charge and discharge power under scene s of electric automobile collection is represented respectively.
(23) t is in the electric automobile number constraint of transport condition：
NEV,tn≤NTR,t≤NEV,tm
Nd,t=0.5 (NEV,tm+NEV,tn)
Nf,t=0.5 (NEV,tm-NEV,tn)
NEV,tmAnd NEV,tnRepresent that t is in the upper and lower limit of the quantity of the electric automobile of transport condition respectively；Nd,tRepresent
T is in the predicted value of the electric automobile quantity of transport condition；Nf,tRepresent its fluctuation range bound；ztRepresent prediction system
Number, Γ is robust coefficient, and the value of robust coefficient is typically between 0 to 1.
Step 3：Build the electric automobile comprising interruptible load and wind-powered electricity generation association system two benches scheduling model a few days ago.
The first stage model of electric automobile and wind-powered electricity generation association system containing interruptible load is initially set up, in the first stage
In model, wind-powered electricity generation scene only selects one, i.e. s=1, the selection of wind-powered electricity generation scene determines according to computational accuracy, can be all wind
The average value of electric field scape, or the wind-powered electricity generation scene of the limit, for obtaining the start and stop state of conventional power unit, conventional power unit goes out
Power and electric automobile are contributed.
The object function of first stage model is with the discharge and recharge cost of electric automobile, conventional power unit start-up and shut-down costs, conventional machine
The operating cost of group and abandon eolian, represented with equation below：
In formula, NGRepresent conventional power unit quantity, NTFor scheduling slot numberFor conventional power unit g period t payment for initiation
With；ug,t,sIt is conventional power unit g in period t start and stop state, ug,t,sFor 0-1 variables, ug,t,sRunning status, u are represented for 1g,t,sFor
0 represents stoppage in transit state；Pg,t,sContributed for the conventional power unit g t periods；f(Pg,t,s) represent the operation of conventional power unit under the output into
This；Wind rejection penalty is abandoned for wind power plant w unit；For wind power plant w air quantity is abandoned in scene s periods t；CEV,tRepresent
Electric automobile electric discharge allowance is used,For electric automobile discharge power.
The constraint of first stage model includes the first conventional constraint and electric automobile cluster participates in constraint, wherein, first is normal
Stipulations beam includes power-balance constraint, Transmission Capacity Constraints, unit ramp loss and Unit Commitment Constraint.
(31) power-balance constraint, power consumption are load and charging electric vehicle amount, and delivery is powered for conventional power unit
Amount, wind-powered electricity generation delivery and electric automobile discharge capacity：
Wherein, Ld,t,sFor load point d scene s periods t predicted load；Pw,t,sIt is wind power plant w in scene s periods t
Output,WithRespectively in scene s period t electric automobile collection charge and discharge power, NDRepresent load bus sum, NWTable
Show wind-powered electricity generation number.
(32) Transmission Capacity Constraints, for constraint circuit trnamission capacity in power transmission capacity of pow bound, specific formula is as follows：
Wherein, T is power transmission distribution coefficient matrix；For the injecting power column vector of period t system；WithFRespectively
For the column vector of power transmission capacity of pow upper and lower limit；
(33) unit ramp loss, contributed for constraining conventional power unit in switching state in creep speed, it is specific public
Formula is as follows：
Wherein, rup,gAnd rdn,gRespectively conventional power unit g creep speed up and down；
(34) Unit Commitment Constraint, for constraining minimum time of the unit when start and stop state switches, specific formula is as follows：
Wherein,WithRespectively conventional power unit g minimum run time and minimum downtime.
Then the second stage model of electric automobile and wind-powered electricity generation association system containing interruptible load is established, second stage exists
In the case of keeping first stage conventional power unit start and stop state and electric automobile charging and discharging state, simulate electric under different wind-powered electricity generation scenes
The Real-time Balancing process of net, the second stage model is solved, obtain conventional power unit output adjustment amount, electricity under different scenes
Electrical automobile collection charge-discharge electric power adjustment amount and interruptible load interruption amount.
The object function of second stage model is the fortune of conventional power unit start-up and shut-down costs, conventional power unit under all wind-powered electricity generation scenes
Row cost, under all wind-powered electricity generation scenes abandon eolian, the interruptible load damages under all wind-powered electricity generation scenes and
Electric automobile electric discharge cost under all scenes.
In formula,Used for conventional power unit g in period t payment for initiation；Wind rejection penalty is abandoned for wind power plant w unit；For wind power plant w air quantity is abandoned in scene s periods t；ug,t,sIt is conventional power unit g in scene s periods t start and stop state, is 0-1
Variable, running status is represented for 1, and stoppage in transit state is represented for 0；Pg,t,sContributed for conventional power unit g in scene s periods t；CEV,tRepresent
Electric automobile is used in period t electric discharge allowances,It is electric automobile in scene s period t discharge powers, f (Pg,t,s) represent that this goes out
The operating cost of conventional power unit under power.
The constraint of the second stage model includes the second conventional constraint, interruptible load participates in constraining in scheduling model a few days ago
And electric automobile cluster participates in power system schedule constraints a few days ago：Second conventional constraint includes power-balance constraint, unit is climbed
Slope constraint, abandon wind constraint.
(41) power-balance constraint, it is identical with described in first stage model, represent power consumption under wind-powered electricity generation scene s with
Delivery balances, wherein, conventional power unit contributing with the single scene obtained in model in the first stage under period t scene s
Lower period t will be contributed and the output adjustment amount under period t scene s represents, charge volume of the electric automobile under period t scene s is used
The single scene lower period t charging electric vehicle amount obtained in the first stage in model and the electric automobile under period t scene s
Charge volume adjustment amount represents that similarly, discharge capacity of the electric automobile under period t scene s is identical, and formula is as follows：
Wherein, rg,t,sThe adjustment amount contributed for second stage conventional power unit g under period t scene s, Represent respectively
Electric automobile collection is in the charge-discharge electric power adjustment amount under period t scene s；
(42) unit ramp loss, it is identical with unit ramp loss in first stage model, wherein, conventional power unit is in the period
Output representation under t scenes s is with representing identical in power-balance constraint.
(43) wind constraint is abandoned, air quantity is actually abandoned in output predicted value under period t scene s for constraining in wind power plant w
Interior, formula is as follows：
Wherein, Pw,t,sFor output predicted values of the wind power plant w under period t scene s.
The embodiment of the present invention is described below：
Verified using RTS-24 node systems as example, access 600MW in node 21, system Daily treatment cost is
3250MW, the electric automobile quantity in access system are 50000, and electric automobile parameter is referring to table 1, interruptible load parameter ginseng
2 are shown in Table, each scheduling slot is in the electric automobile quantitative forecast value of transport condition referring to Fig. 2, and wind-powered electricity generation cluster result is referring to Fig. 3.
In model calculating, power taking electrical automobile is the 30% of its predicted value in calculation interval traveling quantity maximum deviation.Measuring and calculation is adopted
Solved with MATLAB software Gurobi solvers.System a few days ago participate in by optimizing scheduling result under different interruptible load costs
Table 3.
According to table 3 it can be seen that after introducing interruptible load, system is dispatched cost and had a few days ago to be decreased obviously.With can in
The rise of disconnected load cost, system are dispatched cost and are consequently increased a few days ago.When interruptible load cost is improved to 3EILWhen, system
Interruptible load is still called to avoid higher operating cost.When interruptible load cost to 5EIL, interruptible load calling
Amount is reduced to 0, and this is due to that now interruptible load cost is higher than conventional power unit output cost.Numerical results demonstrate the party
The validity of method.
The electric automobile parameter of table 1
The interruptible load basic parameter of table 2
System optimizing scheduling result a few days ago under the different IL cost of compensation of table 3
| CIL | 3CIL | 5CIL | |
| Total cost (103$) | 14373.6 | 14656.8 | 14762.8 |
| Conventional power unit expense (103$) | 14299.8 | 14458.4 | 14753.48 |
| Switching cost (103$) | 6.65 | 5.25 | 5.25 |
| Abandon wind expense (103$) | 0 | 0 | 0 |
| Electric automobile electric discharge cost (103$) | 4.1654 | 4.1674 | 4.1672 |
| Interruptible load cost (103$) | 73.8 | 189 | 0 |
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., all should be included
Within protection scope of the present invention.
Claims (10)
- A kind of 1. dispatching method a few days ago of wind-powered electricity generation and electric automobile association system containing interruptible load, it is characterised in that including Following steps：Establish comprising conventional machine under the discharge and recharge cost of electric automobile, single scene under conventional power unit start-up and shut-down costs, single scene The object function of the first stage model of eolian is abandoned under the operating cost and single scene of group；Establish comprising the first conventional constraint under single scene and electric automobile cluster participate in power system a few days ago schedule constraints the The constraint of one stage model；First stage model is completed to establish；According to the output of conventional power unit and single field under the start and stop state of first stage model acquisition conventional power unit, single scene Electric automobile is contributed under scape；Establish comprising conventional power unit start-up and shut-down costs, the conventional power unit operating cost under all wind-powered electricity generation scenes, in all wind power plants Eolian, interruptible load under all wind-powered electricity generation scenes reparation cost and the electric automobile under all scenes are abandoned under scape The object function of the second stage model for cost of discharging；Establish the second conventional constraint included under all wind-powered electricity generation scenes, interruptible load participates in constraint and electric automobile cluster ginseng With constraint, complete second stage model and establish；According to the output of conventional power unit under the start and stop state of conventional power unit, single scene under second stage model, single scene with And electric automobile output obtains conventional power unit output adjustment amount, electric automobile collection discharge and recharge under all wind-powered electricity generation scenes under single scene Power adjustment and interruptible load interruption amount；Wherein, the first conventional constraint includes power-balance constraint, Transmission Capacity Constraints, unit ramp loss, Unit Commitment Constraint； Second conventional constraint includes power-balance constraint, unit ramp loss, abandons wind constraint；Electric automobile cluster, which participates in constraint, includes electricity The constraint of electrical automobile battery electric quantity, electric automobile power constraint and the electric automobile number constraint in transport condition；It can interrupt Load, which participates in constraint, includes interruption times constraint, the advance notification times constraint of interruptible load, the interruption amount of interruptible load Constraint.
- 2. dispatching method a few days ago as claimed in claim 1, it is characterised in that according to formulaObtain the object function of first stage model；Wherein, NGRepresent conventional power unit quantity, NTFor scheduling slot number, NWWind-powered electricity generation number is represented,Exist for conventional power unit g Period t payment for initiation is used；ug,t,sFor conventional power unit g scene s periods t start and stop state；Pg,t,sIt is conventional power unit g in scene s Period t contributes；f(Pg,t,s) represent the operating cost of conventional power unit under the output；Wind punishment expense is abandoned for wind power plant w unit With；For wind power plant w air quantity is abandoned in scene s periods t；CEV,tRepresent that electric automobile electric discharge allowance is used,For in scene S period t electric automobile discharge powers.
- 3. dispatching method a few days ago as claimed in claim 1 or 2, it is characterised in that in the first conventional constraint：Power-balance constraint is used to constrain the summation of load and charging electric vehicle amount under single scene and powered with conventional power unit The summation balance of amount, wind-powered electricity generation delivery and electric automobile discharge capacity；Transmission Capacity Constraints are used to constrain constraint circuit trnamission capacity in power transmission capacity of pow bound；Unit ramp loss is contributed in creep speed for constraining conventional power unit in switching state；Unit Commitment Constraint is used to constrain minimum time of the unit when start and stop state switches.
- 4. the dispatching method a few days ago as described in any one of claims 1 to 3, it is characterised in that in the first conventional constraint：According to formulaObtain power-balance constraint；According to formulaObtain Transmission Capacity Constraints；According to formulaObtain unit ramp loss；According to formulaObtain Unit Commitment Constraint；Wherein, Pw,t,sFor wind power plant w scene s periods t output predicted value,WithIt is respectively electronic in scene s periods t Automobile collection charge and discharge power, Ld,t,sIt is load point d in scene s periods t predicted load, NDRepresent load bus sum, T For power transmission distribution coefficient matrix；For the injecting power column vector of period t system；WithFRespectively power transmission capacity of pow The column vector of bound；ug,t,sIt is conventional power unit g in scene s periods t start and stop state, rup,gAnd rdn,gRespectively conventional power unit G creep speed up and down；WithRespectively conventional power unit g minimum run time and minimum downtime.
- 5. the dispatching method a few days ago as described in any one of Claims 1-4, it is characterised in that join in the electric automobile cluster With in power system a few days ago schedule constraints：Electric quantity of batteries of electric vehicle constrain for constrain in the previous period total electricity, latter period charging electric vehicle amount, after One period electric automobile discharge capacity and latter period electric automobile during traveling power consumption sum and the total electricity of latter period balance；Electric automobile power constraint is used to constrain relation between the discharge and recharge of single motor automobile and the total discharge and recharge of electric automobile；The electric automobile quantity of transport condition is used for the quantity of electric automobile of the constraint in transport condition, in transport condition Relation between the maximum quantity of electric car and the maximum quantity of electric car in transport condition.
- 6. the dispatching method a few days ago as described in any one of claim 1 to 5, it is characterised in that join in the electric automobile cluster With in power system a few days ago schedule constraints：According to formulaObtain in interruptible load Disconnected count constraint；According to formulaObtain electric automobile power constraint；According toObtain the electric automobile quantity of transport condition；Wherein, Es,tFor the total electricity of electric automobile collection t periods under scene s；ηcFor charge efficiency,Filled for being in for t periods The electric automobile quantity of electricity condition,For individual average charge power；λ is electric automobile unit mileage power consumption, DavFor The average daily distance travelled of electric automobile, NEVRepresent electric automobile sum, NTR,tRepresent the electric automobile in transport condition of t periods Quantity；Es,t-1Represent total electricity η of the electric automobile collection in the t-1 periodsdFor discharging efficiency；For individual averaged discharge work( Rate；For the electric automobile quantity in discharge condition of t periods；EminAnd EmaxThe charged of batteries of electric automobile is represented respectively State bound；NEV,tmAnd NEV,tnRepresent that t is in maximum quantity, the minimum number of the electric automobile of transport condition respectively； Nd,tRepresent that t is in the predicted value of the electric automobile quantity of transport condition；Nf,tRepresent that t is in the electronic of transport condition Automobile fluctuation quantity value, ztPredictive coefficient is represented, Γ is robust coefficient.
- 7. the dispatching method a few days ago as described in any one of claim 1 to 6, it is characterised in that according to formulaObtain second stage The object function of model；Wherein, NsRepresent wind-powered electricity generation number of scenes；ρsRepresent wind-powered electricity generation scene s probability；NILFor interruptible load sum；CIL,jFor can Interruptible load j interruption reimbursement for expenses；PILj,t,sFor interruptible load j scene s periods t interruption amount.
- 8. the dispatching method a few days ago as described in any one of claim 1 to 7, it is characterised in that in the second conventional constraint：According to formulaObtain power-balance about Beam；According to formulaObtain unit ramp loss；According to formulaWind constraint is abandoned in acquisition；Wherein, rg,t,sThe adjustment amount contributed for second stage conventional power unit g under period t scene s, Represent respectively electronic Automobile collection is in charge-discharge electric power adjustment amount, r under period t scene sup,gAnd rdn,gThe respectively conventional power unit g speed of climbing up and down Rate.
- 9. the dispatching method a few days ago as described in any one of claim 1 to 8, it is characterised in that participated in a few days ago in interruptible load In schedule constraints：Interruptible load interruption times are constrained for interruptible load interruption times in maximum interruption times；Interruptible load advance notification times, which constrain, to be sent for constraining in interrupt instruction and passes through interruptible load prior notice Interruptible load interrupts after time；The interruption amount of interruptible load is constrained for constraining interruptible load interruption amount in the range of the bound of interruption amount；The interruptible load break period is constrained for constraining the interruptible load break period in break period bound.
- 10. the dispatching method a few days ago as described in any one of claim 1 to 9, it is characterised in that participated in a few days ago in interruptible load In schedule constraints：According to formulaObtain the constraint of interruptible load interruption times；According to formulaObtain the constraint of interruptible load advance notification times；According to formula PILj.min≤PILj,t,s≤PILj.maxObtain the constraint of interruptible load interruption amount；According to formulaObtain the constraint of interruptible load break period；Wherein, NjFor interruptible load j in scheduling slot maximum interruption times, vj,tFor interruptible load j period t start and stop State, TjpreFor the advance notification times point of interruptible load, n represents that interrupt instruction sends time, PILj.minAnd PILj.maxRespectively Represent interruptible load j minimal disruption amount, maximum interruption amount, TILj.minAnd TILj.maxInterruptible load j minimum is represented respectively Break period, maximum break period, k represent to start the break period.
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