CN110288152A - Consider electricity/thermal flexibility load regional complex energy resource system energy storage configuration method - Google Patents
Consider electricity/thermal flexibility load regional complex energy resource system energy storage configuration method Download PDFInfo
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- 238000004146 energy storage Methods 0.000 title claims abstract description 84
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- 238000010438 heat treatment Methods 0.000 claims abstract description 25
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- 238000005338 heat storage Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 63
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- 239000002918 waste heat Substances 0.000 claims description 28
- 230000009467 reduction Effects 0.000 claims description 22
- 239000003345 natural gas Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000013519 translation Methods 0.000 claims description 15
- 238000012546 transfer Methods 0.000 claims description 12
- 241001123248 Arma Species 0.000 claims description 6
- 239000008400 supply water Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
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- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 abstract description 6
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- 238000011161 development Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H02J3/386—
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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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
- Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
- Y04S50/16—Energy services, e.g. dispersed generation or demand or load or energy savings aggregation
Abstract
The present invention provides a kind of consideration electricity/thermal flexibility load regional complex energy resource system energy storage configuration method, this method comprehensive analysis first composition of electric load and the thermodynamic transport feature of heating system establish electricity/thermal flexibility load model；Then, on the basis of the framework of known region integrated energy system, the model of each power pack is established.Constraint condition, including energy balance constraint, the constraint of power pack units limits, tie-line power transmission, energy storage constraint are set simultaneously.Secondly, considering system energy, investment, O&M, cost of compensation, economical single object optimization model is established.Finally, solving based on LINGO18.0 software to the energy storage Optimal Allocation Model built, the optimal output of each equipment and the optimal capacity of battery, heat storage can are obtained.The method of the invention carries out energy storage to regional complex energy resource system and distributes rationally, improves efficiency of energy utilization.
Description
Technical field
The invention belongs to energy resource systems to distribute rationally, and in particular to a kind of consideration electricity/thermal flexibility load regional complex energy
Source system stored energy configuration method.
Background technique
Traditional energy system planning and operation is confined to single energy form, is unfavorable for economic and environment-friendly and the energy the ladder
Grade utilizes.Integrated energy system integrates the various energy resources such as electric energy in certain area, natural gas, thermal energy, realizes between various energy resources
Collaboration optimization and complementary mutually Ji, to improving the utilization efficiency of the energy, promote renewable energy consumption and realize energy-saving and emission-reduction
Target is of great significance.
Energy storage is the important component and critical support technology of integrated energy system (ICES), is able to solve the life of the energy
Mismatch in time is produced and consumed, meets social development to energy supply safety, the requirement of reliability, improves comprehensive energy system
The capacity of the efficiency of energy utilization of system and the important means of economy, reasonable disposition energy storage device optimizes integrated energy system
Planning is very necessary.Power surges based model for load duration increases and the fast development of renewable energy adjusts energy to electric system
Power proposes new significant challenge, and flexible load, which participates in scheduling, can optimize load curve, promote renewable energy consumption and subtract
Few adding new capacity, it has also become the hot spot paid close attention to both at home and abroad, flexible load dispatch the Europe more mature in Power Market Development
Man, the U.S. shows as demand response.Since heating system is obscured with transmission delay and having for hot comfort for user
Property, thermic load can also serve as flexible load and participate in Optimized Operation.
Therefore consider electricity/thermal flexibility load for the regional complex energy system of building economical and efficient in energy storage is distributed rationally
System is of great immediate significance.The present invention proposes that a kind of consideration electricity/thermal flexibility load regional complex energy resource system energy storage is excellent
Change configuration method, establish electricity/thermal flexibility load model, power pack model and economy single object optimization model, compared to not examining
Consider the energy storage of electricity/thermal flexibility load and plan scene, improve integrated energy system economy, reduces energy storage device configuration capacity, have
Effect promotees energy cascade utilization, is the effective means for solving integrated energy system energy storage planning problem.
Summary of the invention
Goal of the invention: it is an object of the invention to propose a kind of consideration electricity/thermal flexibility load regional complex energy resource system
Energy storage configuration method reduces energy storage configuration capacity, improves efficiency of energy utilization, reach economy most to save operating cost
It is excellent.
A kind of technical solution: consideration electricity/thermal flexibility load regional complex energy resource system energy storage configuration provided by the invention
Method, comprising the following steps:
(1) to ICES input system information, Schema information, power module unit information, electric load information including ICES,
Indoor heating thermic load information, outdoor temperature information, wind-power electricity generation predictive information, tou power price information, Gas Prices information；
(2) establish electricity/thermal flexibility load model of ICES, wherein power flexible load include translatable load, it is transferable
Load, can reduction plans；
(3) establish the power pack model of ICES, including gas turbine model, gas fired-boiler model, waste heat boiler model,
Energy-storage system model；
(4) setting ICES runs constraint condition, including power flexible load duration and load power range constraint,
Energy balance constraint, the constraint of power pack units limits, tie-line power transmission；
(5) it establishes comprising the economical single object optimization model including system investments, operation, reimbursement for expenses；
(6) it is solved based on LINGO18.0 software and considers that the regional complex energy resource system energy storage of electricity/thermal flexibility load configures mould
Type；
(7) ICES information is exported, the electric heating including battery and heat accumulation tankage size, gas turbine is contributed, consumption is natural
The information such as tolerance, purchase of electricity, waste heat boiler heat go out strength, gas fired-boiler heat goes out strength, wind power output amount.
Further, step (2) establishes electricity/thermal flexibility load model of integrated energy system and includes:
A, power flexible load
From the angle of the autonomous response characteristic of user, flexible load can be divided into 3 classes: translatable load, transferable load, can
Reduction plans.
A1, translatable load model
Translatable load electricity consumption Time Continuous, there is fixed operating time, and working hour is adjustable.It is needed when translation whole flat
It moves, it can not sectional translation.The translatable acceptable translation section of load is [tsh-,tsh+], the power after load translation
In formula: tsFor the duration of translatable load；The load power of corresponding period before being translated for load.
A2, transferable load model
Transferable load does not have successional constraint, and operating time and working hour are all adjustable, and operational flexibility is higher, needs
Maintain electricity consumption total amount in a dispatching cycle constant.The transferable acceptable transfer section of load is [ttr-,ttr+], load transfer
Electric energy needed for front and back is kept is constant
In formula:Indicate the variable quantity of the scheduling front and back transferable load of period t, being positive indicates that period t has load shifting
Enter, be negative, there is load removal.
A3, can reduction plans
Can reduction plans, this type load can carry out part reduction when needed.The power of period t after load is cut downAre as follows:
In formula:For the electric power for dispatching preceding period t, α is that load cuts down coefficient, utTo judge whether load occurs
The 0-1 state variable of reduction, ut=1, indicate that load is cut down.
B, heating power flexible load
The transmission delay of hot water in heat supply network, so that the temperature change of user side always lags behind the temperature of heat source in time
Degree variation, and human body has ambiguity for the perception of heat, when room temperature controls in a certain range, thus it is possible to vary heating load,
Therefore integrated energy system Optimized Operation can be participated in using thermic load as flexible load.
It is excavated by physics and historical data counts, described heat supply network return water temperature with ARMA time series models, supply water
Temperature, Indoor environment temperature, the dynamic relationship between outdoor temperature
The regulative mode for setting heating system is adjusted as matter, and heating power is represented by
Qt=cm (Tg,t-Th,t)
There is following constraint to room temperature simultaneously
In formula: Tg,t, Th,t, Tn,t, Tω,tFor heat supply network return water temperature, supply water temperature, Indoor environment temperature, outdoor temperature；J
For arma modeling order；α, beta, gamma, θ, φ, ω are heating system thermal inertia physical parameter；C is the specific heat capacity of water；M is hot water
Flow；WithFor meet human comfort for thermal region Indoor environment temperature bound.
Further, step (3) establishes integrated energy system power module model of element and includes:
A, gas turbine model
Gas turbine is generating equipment common in integrated energy system, is produced electricl energy simultaneously by burning natural gas and hot
Can, gas turbine model is as follows
In formula:WithRespectively indicate the fume afterheat amount and generated output of period t gas turbine；ηGTFor combustion gas wheel
The generating efficiency of machine；ηLFor loss late.
B, gas fired-boiler model
Gas fired-boiler supplements thermal energy by burning natural gas in waste heat boiler heat supply deficiency, and gas fired-boiler model is as follows
In formula:For the output thermal power of period t gas fired-boiler；ηGBFor the thermal efficiency of gas fired-boiler；For period t
The amount of natural gas of gas fired-boiler consumption；LHVgasFor the calorific value of natural gas.
C, waste heat boiler model
Waste heat in high-temperature flue gas of the waste heat boiler by absorbing gas turbine discharge improves the energy to user's heat supply
Utilization efficiency, waste heat boiler model is as follows
In formula:For the output thermal power of period t waste heat boiler；ηHBFor waste heat recovery efficiency.
D, energy storage model
Energy storage can effectively stabilize the fluctuation of load, reduce abandonment, abandon light, and improve the flexibility of system, battery
It is as follows with the model of heat storage can:
In formula: i=ES, HS respectively indicate battery, heat storage can；Indicate the energy storage capacity of period t energy storage device i；σiFor
Consumable rate；For the charge and discharge energy power of period t energy storage device i；ηi,ch、ηi,disFor the charge and discharge energy of period t energy storage device i
Efficiency.
Further, step (4) setting integrated energy system operation constraint condition includes:
A, translatable load constraint
When load moves in the section using τ as initial time, to guarantee that runing time is continuous, should meet
In formula: ytTo judge 0-1 state variable that whether load translates, yt=1, indicate that load moves to period t.
B, transferable load constraint
B1, load power range constraint
B2, minimum duration constraint
In formula: vtTo judge 0-1 state variable that whether load shifts, vt=1, indicate that load occurs to turn in period t
It moves；For minimum continuous operating time.
It C, can reduction plans constraint
Minimum, maximum duration constraints are as follows
In formula:WithThe minimum duration cut down for load and maximum duration.
D, energy balance constrains
D1, electric energy power-balance
In formula:For the tie-line power transmission of period t system and higher level's power grid；For the wind power output of period t；For the total electric load of period t；WithRespectively charge-discharge electric power；For the fixation electric load of period t, it is not involved in
Translation, is cut down at transfer.
D2, thermal energy power-balance
In formula:For the thermic load of period t；WithRespectively charge and discharge thermal power.
E, power pack units limits
In formula: j=GT, GB, HB respectively indicate gas turbine, gas fired-boiler, waste heat boiler power pack；For
The bound of equipment j output power.
F, tie-line power transmission constrains
In formula:Allow the maximum power transmitted for interconnection.
G, storage energy operation characteristic constrains
In formula:WithFor the minimum and maximum state-of-charge of energy storage device i；WiFor the capacity of energy storage device；
WithMaximum for energy storage device i fills exergic efficiency
Further, step (5) establishes economical single object optimization model and includes:
The energy cost that the economical optimization object function that the present invention establishes mainly considers power purchase expense, consumes natural gas
With, operation and maintenance cost, energy storage device investment cost, user's reimbursement for expenses, transport integrated energy system in most economical mode
Row
Min C=Cfu+Com+Cinv+Ccom
A, with energy cost
In formula: ceAnd cgasThe respectively price of unit of electrical energy and natural gas.
B, operation expense
In formula:Indicate the organizational maintenance cost of equipment j；Indicate the power output of period t equipment j.
C, equipment investment cost
In formula:For the installation cost as per machine capacity of energy storage device i；wiFor the capacity of energy storage device i；RiFor investment recycling
Coefficient；R is discount rate；NiFor the service life of energy storage device i.
D, user's cost of compensation
D1, translatable load compensation cost
In formula:For the making up price of unit power load translation.
D2, transferable load compensation cost
In formula:For the making up price of unit power load transfer.
D3, can reduction plans cost of compensation
In formula:The making up price cut down for unit power load.
Further, step (6), which solves, considers electricity/thermal flexibility load regional complex energy resource system energy storage Optimal Allocation Model
Include: consideration electricity/thermal flexibility load regional complex energy resource system energy storage Optimal Allocation Model understands it is 0-1 from mathematical concept
Mixed-integer nonlinear programming model writes model program the present invention is based on LINGO18.0 software platform and calls global solution
Device solves it.
The utility model has the advantages that compared with prior art, remarkable result of the present invention is, the method proposed is firstly, comprehensive analysis
The composition of electric load and the thermodynamic transport feature of heating system, establish electricity/thermal flexibility load model, participate in user mutual
It is dynamic, optimize electricity/thermic load curve, reduces load peak-valley difference；Then, in the structure of known region integrated energy system, timesharing electricity
On the basis of the information such as valence, Gas Prices, wind power generation output, electricity/thermic load, the model of each power module is established, it is made
It is more in line with reality scene.Constraint condition is set simultaneously, including energy balance constraint, power module units limits, interconnection pass
Defeated power constraint, energy storage constraint, enable regional complex system safe and highly efficient operation.Secondly, considering system investments, operation, benefit
Cost is repaid, economical single object optimization model is established, system energy and cost of investment is reduced, realizes economical operation.Finally, base
The energy storage Optimal Allocation Model built is solved using global solver in LINGO18.0 software, obtains the best of each equipment
The optimal capacity of power output and battery, heat storage can, solving speed is fast, and error is small.Sample calculation analysis demonstrates the present invention and is mentioned
The validity that method configures integrated energy system energy storage, the present invention can distribute rationally for integrated energy system energy storage and provide guidance
It uses for reference.
Detailed description of the invention
Fig. 1 is implementation flow chart of the present invention；
Fig. 2 is the example structure chart of regional complex energy resource system；
Fig. 3 is the electrical power histogram for not considering electricity/thermal flexibility load regional complex energy resource system；
Fig. 4 is the optimization electrical power histogram for considering electricity/thermal flexibility load regional complex energy resource system；
Fig. 5 is the Indoor environment temperature curve for considering electricity/thermal flexibility load regional complex energy resource system；
Fig. 6 is to consider electricity/thermal flexibility load regional complex energy resource system electrical power balance chart.
Specific embodiment
Technical solution of the present invention is described in detail with specific embodiment with reference to the accompanying drawings of the specification, but it is of the invention
Protection scope be not limited to the embodiment.
A kind of consideration electricity/thermal flexibility load regional complex energy resource system energy storage configuration method, process as shown in Figure 1,
The following steps are included:
(1) to regional complex energy resource system input system information
To integrated energy system input system information, Schema information, power pack information, electric load letter including ICES
Breath, indoor heating thermic load information, outdoor temperature information, wind-power electricity generation predictive information, tou power price information, Gas Prices letter
Breath etc..
(2) electricity/thermal flexibility load model of regional complex energy resource system is established
A, power flexible load
From the angle of the autonomous response characteristic of user, flexible load can be divided into 3 classes: translatable load, transferable load, can
Reduction plans.
A1, translatable load model
Translatable load electricity consumption Time Continuous, there is fixed operating time, and working hour is adjustable.It is needed when translation whole flat
It moves, it can not sectional translation.The translatable acceptable translation section of load is [tsh-,tsh+], the power after load translation
In formula: tsFor the duration of translatable load；The load power of corresponding period before being translated for load.
A2, transferable load model
Transferable load does not have successional constraint, and operating time and working hour are all adjustable, and operational flexibility is higher, needs
Maintain electricity consumption total amount in a dispatching cycle constant.The transferable acceptable transfer section of load is [ttr-,ttr+], load transfer
Electric energy needed for front and back is kept is constant
In formula:Indicate the variable quantity of the scheduling front and back transferable load of period t, being positive indicates that period t has load shifting
Enter, be negative, there is load removal.
A3, can reduction plans
Can reduction plans, this type load can carry out part reduction when needed.The power of period t after load is cut downAre as follows:
In formula:For the electric power for dispatching preceding period t, α is that load cuts down coefficient, utTo judge whether load occurs
The 0-1 state variable of reduction, ut=1, indicate that load is cut down.
B, heating power flexible load
The transmission delay of hot water in heat supply network, so that the temperature change of user side always lags behind the temperature of heat source in time
Degree variation, and human body has ambiguity for the perception of heat, when room temperature controls in a certain range, thus it is possible to vary heating load,
Therefore integrated energy system Optimized Operation can be participated in using thermic load as flexible load.
It is excavated by physics and historical data counts, described heat supply network return water temperature with ARMA time series models, supply water
Temperature, Indoor environment temperature, the dynamic relationship between outdoor temperature
The regulative mode for setting heating system is adjusted as matter, and heating power is represented by
Qt=cm (Tg,t-Th,t)
There is following constraint to room temperature simultaneously
In formula: Tg,t, Th,t, Tn,t, Tω,tFor heat supply network return water temperature, supply water temperature, Indoor environment temperature, outdoor temperature；J
For arma modeling order；α, beta, gamma, θ, φ, ω are heating system thermal inertia physical parameter；C is the specific heat capacity of water；M is hot water
Flow；WithFor meet human comfort for thermal region Indoor environment temperature bound.
(3) regional complex energy resource system power pack model is established
A, gas turbine model
Gas turbine is generating equipment common in integrated energy system, is produced electricl energy simultaneously by burning natural gas and hot
Can, gas turbine model is as follows
In formula:WithRespectively indicate the fume afterheat amount and generated output of period t gas turbine；ηGTFor combustion gas wheel
The generating efficiency of machine；ηLFor loss late.
B, gas fired-boiler model
Gas fired-boiler supplements thermal energy by burning natural gas in waste heat boiler heat supply deficiency, and gas fired-boiler model is as follows
In formula:For the output thermal power of period t gas fired-boiler；ηGBFor the thermal efficiency of gas fired-boiler；For period t
The amount of natural gas of gas fired-boiler consumption；LHVgasFor the calorific value of natural gas.
C, waste heat boiler model
Waste heat in high-temperature flue gas of the waste heat boiler by absorbing gas turbine discharge improves the energy to user's heat supply
Utilization efficiency, waste heat boiler model is as follows
In formula:For the output thermal power of period t waste heat boiler；ηHBFor waste heat recovery efficiency.
D, energy storage model
Energy storage can effectively stabilize the fluctuation of load, reduce abandonment, abandon light, and improve the flexibility of system, battery
It is as follows with the model of heat storage can
In formula: i=ES, HS respectively indicate battery, heat storage can；Indicate the energy storage capacity of period t energy storage device i；σiFor certainly
Consumption rate；For the charge and discharge energy power of period t energy storage device i；ηi,ch、ηi,disFor the charge and discharge efficiency of period t energy storage device i
Rate.
(4) setting area integrated energy system runs constraint condition
To ensure integrated energy system is safe and reliable, stable operation, need to consider the restrict of polymorphic type.Electricity/heat
Flexible load needs to meet the constraint of its part throttle characteristics, and each power pack needs to meet units limits, the interconnection with higher level's power grid
Transimission power constraint need to be met, energy storage device need to meet the constraint such as charge and discharge energy rate and state-of-charge.Meanwhile comprehensive energy system
Various energy resources form involved in system needs to meet energy balance constraint.
A, translatable load constraint
When load moves in the section using τ as initial time, to guarantee that runing time is continuous, should meet
In formula: ytTo judge 0-1 state variable that whether load translates, yt=1, indicate that load moves to period t.
B, transferable load constraint
B1, load power range constraint
B2, minimum duration constraint
In formula: vtTo judge 0-1 state variable that whether load shifts, vt=1, indicate that load occurs to turn in period t
It moves；For minimum continuous operating time.
It C, can reduction plans constraint
Maximum, minimum duration constrains as follows
In formula:WithThe minimum duration cut down for load and maximum duration.
D, energy balance constrains
D1, electric energy power-balance
In formula:For the tie-line power transmission of period t system and higher level's power grid；For the wind power output of period t；For the total electric load of period t；WithRespectively charge-discharge electric power；For the fixation electric load of period t, it is not involved in
Translation, is cut down at transfer.
D2, thermal energy power-balance
In formula:For the thermic load of period t；WithRespectively charge and discharge thermal power.
E, power pack units limits
In formula: j=GT, GB, HB respectively indicate gas turbine, gas fired-boiler, waste heat boiler power pack；For
The bound of equipment j output power.
F, tie-line power transmission constrains
In formula:Allow the maximum power transmitted for interconnection.
G, storage energy operation characteristic constrains
In formula:WithFor the minimum and maximum state-of-charge of energy storage device i；WiFor the capacity of energy storage device；
WithMaximum for energy storage device i fills exergic efficiency.
(5) economical single object optimization model is established
The energy cost that the economical optimization object function that the present invention establishes mainly considers power purchase expense, consumes natural gas
With, operation and maintenance cost, energy storage device investment cost, user's reimbursement for expenses, transport integrated energy system in most economical mode
Row
Min C=Cfu+Com+Cinv+Ccom
A, with energy cost
In formula: ceAnd cgasThe respectively price of unit of electrical energy and natural gas.
B, operation expense
In formula:Indicate the organizational maintenance cost of equipment j；Indicate the power output of period t equipment j.
C, equipment investment cost
In formula:For the installation cost as per machine capacity of energy storage device i；wiFor the capacity of energy storage device i；RiFor investment recycling
Coefficient；R is discount rate；NiFor the service life of energy storage device i.
D, user's cost of compensation
D1, translatable load compensation cost
In formula:For the making up price of unit power load translation.
D2, transferable load compensation cost
In formula:For the making up price of unit power load transfer.
D3, can reduction plans cost of compensation
In formula:The making up price cut down for unit power load.
(7) it solves and considers electricity/thermal flexibility load regional complex energy resource system energy storage Optimal Allocation Model
The considerations of establishing in present invention electricity/thermal flexibility load regional complex energy resource system energy storage Optimal Allocation Model is from number
Learning conceptive understanding is 0-1 mixed-integer nonlinear programming model, and the present invention is based on LINGO18.0 software platforms to write model journey
Sequence simultaneously calls global solver to solve it.
(8) output integrated energy resource system information
ICES information is exported, including battery and heat accumulation tankage size, the electric heating power output of gas turbine, consumption natural gas
The information such as amount, purchase of electricity, waste heat boiler heat go out strength, gas fired-boiler heat goes out strength, wind power output amount.
(9) sample calculation analysis
A, example introduction
For example using summer typical day as research object, simulation time interval is 1 hour in the present invention, and emulation cycle is 24 small
When.Regional complex energy resource system structure is as shown in Figure 2 in example: main energetic component includes gas turbine, gas fired-boiler, waste heat
Boiler, battery, heat storage can, input energy sources type includes wind energy, natural gas, electric power in input side, integrated energy system.?
Outlet side, the output of integrated energy system include indoor heating thermic load, electric load.The high temperature cigarette that gas turbine is generated by power generation
Gas is used to heat to building by waste heat boiler recycling, while by gas fired-boiler auxiliary heat supplying.
The major parameter setting of example in the present invention: Gas Prices are 2.07 yuan/m3, calorific value 35169kJ/m3, water
Specific heat capacity is 4.2kJkg DEG C, and hot water flow is 10kg/s in heating network, and Indoor environment temperature pleasant range takes 24 ± 2 DEG C.
Interconnection maximum transmission power is 1000kW.The parameter of existing device is as shown in table 1 in example, the parameter of energy storage device such as table 2
Shown, tou power price is shown in Table 3.
Table 1, regional complex energy resource system existing device parameter
Table 2: energy storage device parameter
Table 3: tou power price
B, interpretation of result
Model program is write based on LINGO18.0 software platform and calls global solver to above-mentioned established economical
Energy storage Optimal Allocation Model is solved
Table 4: energy storage configuration and cost under different scenes
Energy storage configuration and cost under different scenes is as shown in table 4, compares its energy storage configuration result it is found that comprehensively considering electricity
After power and heating power flexible load, the capacity of energy storage device is significantly reduced, and accumulator capacity is reduced to 3103kW, heat accumulation by 4818kW
Tankage size is reduced to 794kW by 2116kW.If not considering power flexible load, battery by power purchase and increases combustion in 5-8 point
The a large amount of electric power storages of gas-turbine power output, discharge in evening peak, and simultaneity factor reaches the upper limit to power grid power purchase power in 16-17 point, with
Meet power demand when evening peak, the participation of power flexible load makes electric load that apparent peak clipping have occurred, and reduces battery
Charge volume, to reduce the capacity of battery, and reduce purchase of electricity.It is indoor meeting after considering heating power flexible load
Under conditions of temperature restraint, thermic load cooperates electric load to carry out peak regulation, avoids excessive electric energy and thermal energy surplus, and then reduce storage
The capacity of hot tank.Change in a certain range since room temperature is acceptable, so that thermic load is flexibly adjustable, the heat after optimization is negative
The ratio of lotus and electric load is more nearly the power output of gas turbine.
Economic analysis is carried out to the energy storage configuration result under different scenes, it is smooth electric negative after considering flexible load
Lotus curve has adjusted electricity/thermic load structure, maximumlly reduces the capacity of battery and heat storage can, and equivalent investment cost subtracts
5.69 ten thousand yuan are lacked.By the analysis of front it is found that the purchase energy of system is reduced, reduce 170,000 yuan with energy cost.Power flexible
The participation of load is compensated to 6.55 ten thousand yuan of user, and totle drilling cost, which is compared, does not consider that the scene of flexible load has dropped 180,000 yuan, is improved
The economy of energy storage configuration.
Claims (6)
1. a kind of consideration electricity/thermal flexibility load regional complex energy resource system energy storage configuration method, it is characterised in that: including following
Step:
(1) to ICES input system information, Schema information, power pack information including ICES, electric load information, indoor heating
Thermic load information, outdoor temperature information, wind-power electricity generation predictive information, tou power price information, Gas Prices information；
(2) establish electricity/thermal flexibility load model of ICES, wherein power flexible load include translatable load, transferable load,
It can reduction plans；
(3) the power pack model of ICES, including gas turbine model, gas fired-boiler model, waste heat boiler model, energy storage are established
System model；
(4) setting ICES runs constraint condition, including power flexible load duration and load power range constraint, energy
Constraints of Equilibrium, power pack units limits, tie-line power transmission constraint；
(5) it establishes comprising the economical single object optimization model including system energy, investment, O&M, reimbursement for expenses；
(6) it is solved based on LINGO18.0 software and considers electricity/thermal flexibility load regional complex energy resource system energy storage allocation models；
(7) ICES information is exported, including battery and heat accumulation tankage size, electricity/heat power output of gas turbine, consumption natural gas
Amount, purchase of electricity, waste heat boiler heat go out strength, gas fired-boiler heat goes out strength, wind power output amount information.
2. a kind of consideration electricity/thermal flexibility load regional complex energy resource system energy storage configuration method according to claim 1,
It is characterized by: electricity/thermal flexibility load model of step (2) established ICES includes that power flexible load model and heating power are flexible
Load model, the power flexible load model include translatable load model, transferable load model and can reduction plans
Model, in the translatable load model, the translation section that translatable load receives is [tsh-,tsh+], after load translation
Power expression it is as follows:
In formula: tsFor the duration of translatable load；Pt shiftThe load power of corresponding period before being translated for load；
The transfer section that the transferable load of the transferable load model receives is [ttr-,ttr+], load transfer front and back is kept
Required electric energy is constant, is expressed as follows:
In formula: Δ Pt transIndicate the variable quantity of the scheduling front and back transferable load of period t, being positive indicates that period t has load immigration,
It is negative, there is load removal；
It is described can reduction plans load cut down after period t power Pt cutExpression formula is as follows:
In formula:For the electric power for dispatching preceding period t, α is that load cuts down coefficient, utJudge whether load is cut down
0-1 state variable, ut=1, indicate that load is cut down；
The heating power flexible load describes heat supply network return water temperature, supply water temperature, Indoor environment temperature with ARMA time series models
It spends, the dynamic relationship between outdoor temperature, relational expression is as follows:
The regulative mode for setting heating system is adjusted as matter, and heating power indicates are as follows:
Qt=cm (Tg,t-Th,t)
There is following constraint condition to room temperature simultaneously:
In formula: Tg,t, Th,t, Tn,t, Tω,tFor heat supply network return water temperature, supply water temperature, Indoor environment temperature, outdoor temperature；J is
Arma modeling order；α, beta, gamma, θ, φ, ω are heating system thermal inertia physical parameter；C is the specific heat capacity of water；M is the stream of hot water
Amount；WithFor meet human comfort for thermal region Indoor environment temperature bound.
3. a kind of consideration electricity/thermal flexibility load regional complex energy resource system energy storage configuration method according to claim 1,
It is characterized by: it includes gas turbine model, gas fired-boiler mould that step (3), which establishes regional complex energy resource system power pack model,
Type, waste heat boiler model, energy storage model, specific as follows:
The gas turbine model mathematic(al) representation is as follows:
In formula:And Pt GTRespectively indicate the fume afterheat amount and generated output of period t gas turbine；ηGTFor the hair of gas turbine
Electrical efficiency；ηLFor loss late；
The gas fired-boiler model expression is as follows:
In formula:For the output thermal power of period t gas fired-boiler；ηGBFor the thermal efficiency of gas fired-boiler；Ft GBFor period t gas-fired boiler
The amount of natural gas of furnace consumption；LHVgasFor the calorific value of natural gas；
The waste heat boiler model expression is as follows:
In formula:For the output thermal power of period t waste heat boiler；ηHBFor waste heat recovery efficiency；
The model expression of the battery and heat storage can is as follows:
In formula: i=ES, HS respectively indicate battery, heat storage can；Indicate the energy storage capacity of period t energy storage device i；σiFor consumable
Rate；Pt i,c、Pt i,dFor the charge and discharge energy power of period t energy storage device i；ηi,ch、ηi,disFor the charge and discharge efficiency of period t energy storage device i
Rate.
4. a kind of consideration electricity/thermal flexibility load regional complex energy resource system energy storage configuration method according to claim 1,
It is characterized by: step (4) setting area integrated energy system operation constraint condition includes that translatable load constrains, is transferable negative
Lotus constraint, can reduction plans constraint, energy balance constraint, power pack units limits, tie-line power transmission constrain, energy storage transport
The constraint of row characteristic:
The described translatable load constraint is moved to when load using τ as in the section of initial time, the expression formula of constraint condition
It is as follows:
In formula: ytTo judge 0-1 state variable that whether load translates, yt=1, indicate that load moves to period t；
The transferable load constraint includes that load power range constraint and minimum duration constrain, the load power
Range constraint condition is as follows:
The minimum duration constraint are as follows:
In formula: vtTo judge 0-1 state variable that whether load shifts, vt=1, indicate that load is shifted in period t；For minimum continuous operating time；
It is described can reduction plans constraint include minimum, maximum duration constraints, expression formula is as follows:
In formula:WithThe minimum duration cut down for load and maximum duration；
The energy balance constraint includes electric energy power-balance and thermal energy power-balance, and the electric energy power-balance indicates such as
Under:
Pt GRID+Pt WT+Pt GT+Pt ES,d=Pt load+Pt ES,c
Pt load=Pt e+Pt shift+Pt trans+Pt cut
In formula: Pt GRIDFor the tie-line power transmission of period t system and higher level's power grid；Pt WTFor the wind power output of period t；Pt load
For the total electric load of period t；Pt ES,cAnd Pt ES,dRespectively charge-discharge electric power；Pt eFor the fixation electric load of period t, it is not involved in flat
It moves, transfer, cut down；
The thermal energy power-balance is expressed as follows:
Qt HB+Qt GB+Pt HS,d=Qt load+Pt HS,c
In formula:For the thermic load of period t；Pt HS,cAnd Pt HS,dRespectively charge and discharge thermal power；
The power pack units limits are expressed as follows:
In formula: j=GT, GB, HB respectively indicate gas turbine, gas fired-boiler, waste heat boiler power pack；For equipment
The bound of j output power；
The tie-line power transmission constraint representation is as follows:
In formula:Allow the maximum power transmitted for interconnection；
The storage energy operation characteristic constraint representation is as follows:
In formula:WithFor the minimum and maximum state-of-charge of energy storage device i；WiFor the capacity of energy storage device；With
Maximum for energy storage device i fills exergic efficiency.
5. a kind of consideration electricity/thermal flexibility load regional complex energy resource system energy storage configuration method according to claim 1,
Comprehensively consider it is characterized by: step (5) establishes economical single object optimization model with energy cost, operation expense, equipment
The economical optimization object function expression formula of cost of investment and user's cost of compensation, foundation is as follows:
Min C=Cfu+Com+Cinv+Ccom
Wherein, with energy cost are as follows:
In formula: ceAnd cgasThe respectively price of unit of electrical energy and natural gas；
The operation expense are as follows:
In formula:Indicate the organizational maintenance cost of equipment j；Pt jIndicate the power output of period t equipment j；
The equipment investment cost are as follows:
In formula:For the installation cost as per machine capacity of energy storage device i；wiFor the capacity of energy storage device i；RiFor investment recycling system
Number；R is discount rate；NiFor the service life of energy storage device i；
User's cost of compensation include translatable load compensation cost, transferable load compensation cost and can reduction plans compensation
Cost, the translatable load compensation cost are as follows:
In formula:For the making up price of unit power load translation；
The transferable load compensation cost are as follows:
In formula:For the making up price of unit power load transfer；
It is described can reduction plans cost of compensation are as follows:
In formula:The making up price cut down for unit power load.
6. a kind of consideration electricity/thermal flexibility load regional complex energy resource system energy storage configuration method according to claim 1,
It is characterized by: step (6), which solves, considers that electricity/thermal flexibility load regional complex energy resource system energy storage allocation models includes being based on
0-1 mixed integer nonlinear programming model method and model program is write based on LINGO18.0 software platform and is called complete
Office's solver solves it.
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