CN110084499A - A kind of calculation method and system of project of transmitting and converting electricity comprehensive benefit - Google Patents
A kind of calculation method and system of project of transmitting and converting electricity comprehensive benefit Download PDFInfo
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Abstract
The present invention relates to the calculation methods and system of a kind of project of transmitting and converting electricity comprehensive benefit, which is characterized in that method includes the following steps: being based on economic benefit, social benefit and environmental benefit, constructs project of transmitting and converting electricity Comprehensive Benefit Evaluation index system；According to project of transmitting and converting electricity Comprehensive Benefit Evaluation index system, the collaboration Optimized model of project of transmitting and converting electricity is constructed；Obtain the required data of project of transmitting and converting electricity to be evaluated；The collaboration Optimized model of project of transmitting and converting electricity to be evaluated is solved according to the required data of acquisition using linear search algorithm, obtains the comprehensive benefit of project of transmitting and converting electricity to be evaluated, the present invention can be widely applied in electric power network technique field.
Description
Technical field
The present invention relates to the calculation methods and system of a kind of project of transmitting and converting electricity comprehensive benefit, belong to electric power network technique field.
Background technique
Project of transmitting and converting electricity is used as to socio-economic development and people's lives public welfare basic type investment project of significant impact,
For driving the development of upstream and downstream related industry, improve the investment climate and infrastructure construction, uplift the people's living standard etc.
Can produce bigger effect, investment science and comprehensive benefit it is significant whether be concerned.Project of transmitting and converting electricity
Construction influences whether many aspects such as economy, environment, social resources, thus to the research of its benefit also should include economy, environment,
All sectors of society guarantees the comprehensive of appraisement system, objectivity and reasonability.
Project of transmitting and converting electricity comprehensive benefit generally comprises economic benefit, social benefit and environmental benefit, project of transmitting and converting electricity investment
Greatly, the wide feature of coverage, which determines, needs to pay close attention to social benefit in On The Comprehensive Beneficial Results, and fully consider social benefit with
The concertedness of economic benefit is developed in harmony with the social environment for ensuring project and locating for it.However, being imitated at present for engineering comprehensive
The research of benefit focuses mostly in economic benefit, insufficient the considerations of for social benefit, environmental benefit, and calculation method is mostly qualitative point
Analysis is unable to fully, comprehensively, objectively reflects the comprehensive benefit that project of transmitting and converting electricity is invested, is unfavorable for objective rational evaluation power transmission and transformation
The investment value of engineering.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of abundant, comprehensive, objective project of transmitting and converting electricity comprehensive benefits
Calculation method and system.
To achieve the above object, the present invention takes following technical scheme: a kind of calculating side of project of transmitting and converting electricity comprehensive benefit
Method, which comprises the following steps: be based on economic benefit, social benefit and environmental benefit, building project of transmitting and converting electricity is comprehensive
Benefit appraisal index system；According to project of transmitting and converting electricity Comprehensive Benefit Evaluation index system, the collaboration optimization of project of transmitting and converting electricity is constructed
Model；Obtain the required data of project of transmitting and converting electricity to be evaluated；It is solved using linear search algorithm according to the required data of acquisition
The collaboration Optimized model of project of transmitting and converting electricity to be evaluated, obtains the comprehensive benefit of project of transmitting and converting electricity to be evaluated.
Further, the project of transmitting and converting electricity Comprehensive Benefit Evaluation index system includes social development indices, wherein the society
Meeting development indicators include technology progress parameter, coordinated development index, family life improves index, social life improves index, right
The influence index and network system improved efficiency index of social sustainable development；1) technology progress parameter includes New technical use effect
Benefit, its calculation formula is:
Wherein, ECYFor New technical use benefit；For the engineering dosage of kth kind new material；For kth kind new material
Unit price；For the engineering dosage of l kind new equipment；For the unit price of l kind new equipment；C be power generation with
Supply the responsibility coefficient of industry；2) coordinated development index includes that employment benefit and urbanization benefit, calculation formula are respectively as follows:
Wherein,For benefit of obtaining employment in jth year；For jth year increased total employment；Per capita may be used for jth year
Dominate income；
Wherein, EURBFor urbanization benefit；Δ l is newly-increased urban population quantity；Δ r is town and country per capita income gap；3) family
Improvement of living index in front yard increases contribution including electric appliance owning amount per family, resident's distribution capacity increases contribution and resident rations the power supply, and duration subtracts
On a small quantity, calculation formula is respectively as follows:
EHACG=(Zj-Z'j)×p
Wherein, EHACGIncrease for electric appliance owning amount per family and contributes；ZjFor after the j cell project implementation when annual each household electricity consumption
Amount；Z'jFor the previous average annual electricity consumption of annual each household of the j cell project implementation；P is electricity price；
Ej=pj×ΔQj×nj
Wherein, EjIncrease for resident's distribution capacity and contributes, pjFor j cell sale of electricity valence；ΔQjFor j cell year average each household
Newly-increased distribution capacity；njFor resident's quantity of j cell；
Wherein,It rations the power supply duration reduction amount for resident；pjFor j sale of electricity valence；ΔtjDuration of for j more rationing the power supply in year is reduced
Amount influences electricity；4) it includes that electric car ownership increases and inhibit stake electrovalence rise benefit that social life, which improves index,
Calculation formula is respectively as follows:
ENET=Δ nj×Dj×Oj×pj, j=1,2 ...
Wherein, ENETFor the growth of electric car ownership；J is corresponding new energy vehicle owning amount；ΔnjFor new energy vehicle
Owning amount；DjMilimeter number is travelled every year on average for the vehicle；OjIt is averaged every gas mileage for the vehicle；pjFor oil price；
Wherein,To inhibit stake electrovalence rise benefit；To land electricity price；pjFor engineering location locality mark post electricity
Valence；QjFor year area electricity consumption；For the total trnamission capacity in year area；5) including to the influence index of social sustainable development can be again
Raw energy source configuration optimization contribution and system safety and stability benefit, calculation formula are respectively as follows:
Wherein,For the contribution of renewable energy configuration optimization；PjFor the receiving end average rate of electricity sold in jth year；ejFor jth year
Line loss per unit；For the transmission of electricity total capacity in jth year；
RP=NRP/NAP× 100%
Wherein, RPFor system safety and stability benefit；NRPFor the number of elements for meeting N-1；NAPFor total number of elements；6) power grid
It includes that power quality improves benefit and efficiency growth contribution that system effectiveness, which promotes index, and calculation formula is respectively as follows:
Wherein,Improve benefit for power quality；The economic loss generated for single instantaneous power failure；ΔNPQFor
The instantaneous power failure number difference of more reductions before building up；
Wherein, PjFor sales rate of electricity；QjThe electricity saved for reducing loss measure.
Further, the project of transmitting and converting electricity Comprehensive Benefit Evaluation index system includes indicator of economic development, wherein the warp
Ji development indicators include directly affecting index, match to the influence index of Regional Economic Development and to resource optimization to national economy
The influence index set；It A include) engineering economy net present value (NPV) (ENPV) and tax efficiency to the index that directly affects of national economy,
Calculation formula is respectively as follows:
Wherein, EPFor engineering economy net present value (NPV)；CiFor cash inflow；CoFor cash flow；N is the calculating phase；I is society
It can discount rate；T is the life of project；
ET=(Cd+Cid+Pr)×rt
Wherein, ETFor tax efficiency；CdFor direct engineering cost；CidFor overhead cost；PrFor profit；rtFor the tax rate；B) to region
The influence index of economic development includes that regional production increase value and local revenue increasing value, calculation formula are distinguished per capita
Are as follows:
Wherein, Δ EGDPAFor regional production increase value per capita；WithRespectively before power transmission and transformation key project construction
Regional GDP afterwards；α is electric grid investment coefficient, and α=Ceinv/Cainv, CeinvFor the investment of power transmission and transformation Important Project, CainvFor
Regional society gross investment during power transmission and transformation key project construction；
Wherein, Δ ELFRFor local revenue increasing value；WithRespectively before power transmission and transformation key project construction
Local revenue afterwards；α is electric grid investment coefficient；It C include) that upstream and downstream production capacity pulls effect to the influence index of most optimum distribution of resources
Beneficial, spare investment reduction volume and energy delivery cost, calculation formula are respectively as follows:
Wherein, EMBenefit is pulled for upstream and downstream production capacity；SM,iPut quantity/weight of material aside as useless for i-th kind；CM,iIt is i-th kind
Put the price of material aside as useless；Ω is all complete or collected works for putting material aside as useless；
EAN=SnCn
Wherein, EANFor spare investment reduction volume；SnTo reduce installed capacity；CnFor new-built unit unit cost；
ETR=SwerMcCt-Swerpte
Wherein, ETRFor energy delivery cost；SweThe generated energy conveyed for west area to east midland load area；R is fire
Electric trnamission capacity accounts for the ratio of total electricity；McFor the average consumption of unit generated energy coal；CtFor the average transportation cost of coal per ton；
pteFor the Transmission Cost of unit trnamission capacity.
Further, the project of transmitting and converting electricity Comprehensive Benefit Evaluation index system includes environmental development index, wherein the ring
Border development indicators include Indices of Ecological, resource environment index, noise circumstance index and power supply architecture index；A) ecological environment
Index includes that water resource cost, Air resource cost and land resource cost, calculation formula are respectively as follows:
Cs=T δ1/D+Bδ2/D+Cδ3/D
Wherein, CsFor water resource cost；T is substation year water intaking total amount in the water system of region；D is power generation total amount；δ1For water intaking
Measure the conversion coefficient with generated energy；δ2It is waste discharge water with the conversion coefficient of generated energy；C is the total emission volumn of certain pollutant；δ3For
Conversion coefficient of the water with generated energy；
APep=ηsPs+ηNPN+0.02ηcPc
Wherein, APepFor Air resource cost；Ps、PNAnd PcRespectively SO2、NOXAnd CO2Transaction value；ηs、ηNAnd ηcPoint
It Wei not SO2、NOXAnd CO2Transaction value and electricity price transformation ratio；
Wherein, SPLFor land resource cost；PTFor land allocation price；PFIt is soil occupied by project in one timing of future
The summation of the present worth of income for other purposes abandoned in phase, andτ is that project occupies soil
The quantity in ground plot, t are the following regular period, and NB is the annual net bennefits of soil best use occupied by project, η be soil most
The annual net income of good purposes obtains the transformation ratio of income with suffered electricity；R is the annual average rate of increase of best use net benefits；
isFor social discount rate；PCFor the greater in the bid price or auction price in soil；B) resource environment index include consumptive material at
This, noise circumstance index includes electromagnetic interference noise and radio interference noise, and calculation formula is respectively as follows:
ΔEHC=Δ CL × (ηXCX-ηHCH)
Wherein, Δ EHCFor consumables cost；Δ CL is the variable quantity of consumptive material before and after technological improvement；CXAnd CHBefore technological improvement
With improved cost；ηXAnd ηHFor cost before and after technological improvement and the transformation ratio between electricity；
ΔEdc=Δ exl×αCxl+Δebdz×αCbdz
Wherein, Δ EdcFor electromagnetic interference noise；ΔexlFor the original electric field strength of line project electric field strength and electric field up to standard
The difference of intensity；CxlFor cost needed for the every reduction unit electric field intensity of line project；ΔebdzFor substation project electric field strength
The difference of original electric field strength and electric field strength up to standard；CbdzFor cost needed for the every reduction unit electric field intensity of substation project；
α is the transformation ratio of cost and electricity；
Wherein, Δ EwxFor radio interference noise；ΔLxlFor construction period line project audible noise raw decibel with it is up to standard
The difference of decibel；For the every cost for reducing by 1 decibel of construction period line project audible noise；For construction period substation's work
The difference of journey audible noise raw decibel and decibel up to standard；For runtime substation project audible noise raw decibel with
The difference of decibel up to standard；For the every cost for reducing by 1 decibel of construction period substation project audible noise；For runtime change
The every cost for reducing by 1 decibel of power plant project audible noise；llmFor m sections of line lengths；α is the transformation ratio of cost and electricity；
C) power supply architecture index includes fossil energy consumption variable quantity, its calculation formula is:
Wherein, Δ EhsFor fossil energy consumption variable quantity；For the unit treatment cost of carbon dioxide；CotherFor it
The unit treatment cost of his polluted gas；σ is the CO2 emission coefficient of electric coal；θ is the polluted gas emission factor of electric coal；
ΔEnewFor the power consumption for substituting fossil energy；α is other polluted gas emission factors of electric coal.
Further, according to the project of transmitting and converting electricity Comprehensive Benefit Evaluation index system of building, the collaboration of project of transmitting and converting electricity is constructed
Optimized model, detailed process are as follows: 1. according to the project of transmitting and converting electricity Comprehensive Benefit Evaluation index system of building, construct project of transmitting and converting electricity
Collaboration Optimized model:
Max (S)=Cs+APep+SPL+ΔEHC+ΔEdc+ΔEwx+ΔEhs
Wherein, E is the sum of economic benefit and social benefit, and S is environmental benefit；2. determining that collaboration Optimized model needs to meet
Constraint condition.
Further, the constraint condition includes electric power constraint and Constraint, wherein the electric power is constrained to power transmission and transformation work
Journey is actual to transmit electric power less than the specified transmission capacity of project of transmitting and converting electricity, and the Constraint is that the reality of project of transmitting and converting electricity is defeated
Power transmission amount is less than the demand electricity of receiving end power grid.
Further, the comprehensive benefit of the project of transmitting and converting electricity to be evaluated is Y=E+S.
A kind of computing system of project of transmitting and converting electricity comprehensive benefit characterized by comprising assessment indicator system constructs mould
Block constructs project of transmitting and converting electricity Comprehensive Benefit Evaluation index system for being based on economic benefit, social benefit and environmental benefit；Mould
Type constructs module, for constructing the collaboration optimization mould of project of transmitting and converting electricity according to project of transmitting and converting electricity Comprehensive Benefit Evaluation index system
Type；Data acquisition module, for obtaining the required data of project of transmitting and converting electricity to be evaluated；Comprehensive benefit solves module, for using
Linear search algorithm solves the collaboration Optimized model of project of transmitting and converting electricity to be evaluated, obtains to be evaluated according to the required data of acquisition
The comprehensive benefit of project of transmitting and converting electricity.
The invention adopts the above technical scheme, which has the following advantages: 1, comprehensive: the prior art is comprehensive for engineering
The research for closing benefit focuses mostly in economic benefit, insufficient the considerations of for social benefit and environmental benefit, and the present invention is imitated from society
It sets out in terms of benefit, environmental benefit and economic benefit, constructs project of transmitting and converting electricity Comprehensive Benefit Evaluation index system, be conducive to comprehensively
Reflect the vehicle benefits situation of Transmission Projects.2, objectivity: when being related to social benefit, environmental benefit, traditional measuring and calculating side
For fado based on qualitative evaluation, the present invention is on the one hand advantageous by evaluation index money demand elasticity on the basis of proposing evaluation index
In objectively calculating comprehensive benefit, on the other hand it is convenient for and measuring and calculating standard of the economic benefit together as comprehensive benefit, Ke Yiguang
It is general to be applied in electric power network technique field.
Specific embodiment
The calculation method of project of transmitting and converting electricity comprehensive benefit provided by the invention, comprising the following steps:
1) according to objective comprehensive, practicability, relative independentability principle and operability principle, economic benefit, society are based on
Meeting benefit and environmental benefit construct project of transmitting and converting electricity Comprehensive Benefit Evaluation index system, including social development indices, economic development
Index and environmental development index.
1.1) social development indices, including technology progress parameter, coordinated development index, family life improve index, society
Improvement of living index, influence index and network system improved efficiency index to social sustainable development, wherein technological progress refers to
Mark includes New technical use benefit, and coordinated development index includes employment benefit and urbanization benefit, and family life improves index packet
Include that electric appliance owning amount per family increases contribution, resident's distribution capacity increases contribution and resident rations the power supply duration reduction amount, social life changes
Kind index includes that electric car ownership increases and inhibits stake electrovalence rise benefit, to the influence index of social sustainable development
Including the contribution of renewable energy configuration optimization and system safety and stability benefit, network system improved efficiency index includes power quality
Improve benefit and efficiency increases contribution.
1.1.1) New technical use benefit ECY:
The index is project in construction and causes the sustainable of industry and related industry technological development during follow-up maintenance
Benefit, calculation method use input-output analysis method, calculation are as follows:
Wherein, ECYFor New technical use benefit；For the engineering dosage of kth kind new material；For kth kind new material
Unit price；For the engineering dosage of l kind new equipment；For the unit price of l kind new equipment；C be power generation with
Supply the responsibility coefficient of industry.
1.1.2) employment benefit
The index is the increase of Engineering Project Construction bring job opportunity, and calculation method uses input-output analysis method, meter
Calculation mode are as follows:
Wherein,For benefit of obtaining employment in jth year；For jth year increased total employment；Per capita may be used for jth year
Dominate income.
1.1.3) urbanization benefit EURB:
The index is used to measure the influence that engineering construction generates local Development of China's Urbanization, and calculation method is using throwing
Enter output method, calculation are as follows:
Wherein, Δ l is newly-increased urban population quantity；Δ r is town and country per capita income gap.
1.1.4) electric appliance owning amount increases contribution E per familyHACG:
The index uses opportunity cost method for embodying residential households improvement of living standard, calculation method, calculates
Mode are as follows:
EHACG=(Zj-Z'j)×p
Wherein, ZjFor after the j cell project implementation when annual each household electricity consumption；Z'jIt is flat for j cell project implementation the previous year
The average annual electricity consumption of equal each household；P is electricity price.
1.1.5) resident's distribution capacity increases contribution Ej:
The index is used to reflect the promotion of resident's household electricity capacity, and calculation method uses opportunity cost method,
Calculation are as follows:
Ej=pj×ΔQj×nj
Wherein, pjFor j cell sale of electricity valence；ΔQjDistribution capacity is increased newly for j cell year average each household；njFor the residence of j cell
People's number of users.
1.1.6) resident rations the power supply duration reduction amount
The index be used for reflect put into operation by project of transmitting and converting electricity alleviate backlog make customer charge be limited reduction
Situation, calculation method use opportunity cost method, calculation are as follows:
Wherein, pjFor j sale of electricity valence；ΔtjDuration reduction amount of for j more rationing the power supply in year influences electricity.
1.1.7) electric car ownership increases ENET:
The index is used to influence the improvement of social life from side performance project of transmitting and converting electricity, and calculation method uses chance
Cost-or-market method, calculation are as follows:
ENET=Δ nj×Dj×Oj×pj, j=1,2 ...
Wherein, j is corresponding new energy vehicle owning amount；ΔnjFor new energy vehicle owning amount；DjEvery year on average for the vehicle
Travel milimeter number；OjIt is averaged every gas mileage for the vehicle；pjFor oil price.
1.1.8) inhibit stake electrovalence rise benefit
The landing electricity price and local stake electrovalence difference that the index is able to reflect project of transmitting and converting electricity are for inhibiting stake electrovalence
Go up the positive effect played, and calculation method uses opportunity cost method, calculation are as follows:
Wherein,To land electricity price；pjFor engineering location locality stake electrovalence；QjFor year area electricity consumption；For
The total trnamission capacity in year area.
1.1.9) renewable energy configuration optimization is contributed
The index is used to reflect that the construction of project of transmitting and converting electricity to be matched in the trans-regional optimization of the renewable energy such as realization water power, wind-powered electricity generation
The effect that aspect plays is set, calculation method uses input-output analysis method, calculation are as follows:
Wherein, PjFor the receiving end average rate of electricity sold in jth year；ejFor the line loss per unit in jth year；Transmission of electricity for jth year is always held
Amount.
1.1.10) system safety and stability benefit RP:
The index is able to reflect the economic benefit loss that system keeps safe and stable operation to be avoided, and calculation method uses
Input-output analysis method, calculation are as follows:
RP=NRP/NAP× 100%
Wherein, RPFor N-1 percent of pass, that is, system safety and stability benefit；NRPFor the number of elements for meeting N-1；NAPFor total element
Quantity.
1.1.11) power quality improvement benefit
Lifting system is stablized in the construction that the index is able to reflect project of transmitting and converting electricity, what support area rack intensity played
Effect, calculation method use opportunity cost method, calculation are as follows:
Wherein,The economic loss generated for single instantaneous power failure；ΔNPQFor the instantaneous power for building up preceding more reductions
Interruption times difference.
1.1.12) efficiency growth contribution
The index is able to reflect after project of transmitting and converting electricity puts into operation by improving power quality, reducing because passing through caused by power fluctuation
The benefit that Ji loss generates, calculation method use opportunity cost method, calculation are as follows:
Wherein, PjFor sales rate of electricity；QjThe electricity saved for reducing loss measure, and:
Wherein,For year trnamission capacity；χjIt is current year line loss compared with the percentage that reference year line loss declines:
Wherein,The impact factor that line loss per unit is changed for voltage class；Line loss per unit is changed for power factor
Impact factor；For the impact factor that rate of load condensate changes line loss per unit, and:
Wherein, ejFor the line loss per unit built under the project situation；For the line loss per unit that do not build under the project situation；fj
For the rate of load condensate built under the project situation；For the rate of load condensate that do not build under the project situation；Not build the engineering
Relative to the construction increased ratio of engineering line loss per unit.
Wherein,For the power factor of route.
1.2) indicator of economic development, including to national economy directly affect index, the influence to Regional Economic Development refers to
Mark and to the influence index of most optimum distribution of resources, wherein the index that directly affects to national economy includes engineering economy net present value (NPV)
It (ENPV) and tax efficiency include, regional production increase value and local revenue per capita to the influence index of Regional Economic Development
Increasing value, the influence index to most optimum distribution of resources include that upstream and downstream production capacity pulls benefit, spare investment reduction volume and the energy defeated
Benefit is set in delivery.
1.2.1) engineering economy net present value (NPV) EP:
The index is that social discount rate showing annual net bennefits flow each in project calculator conversion to project construction is initial
The sum of value, for carrying out the main foundation of engineering evaluation and Scheme Choice, economic net present value (ENPV) is bigger, show brought by engineering with
The economic benefit that absolute figure indicates is bigger, and calculation method uses input-output analysis method, calculation are as follows:
Wherein, CiFor cash inflow；CoFor cash flow；N is the calculating phase；I is social discount rate；T is the project service life
Phase.
1.2.2) tax efficiency ET:
The index is the reflection that taxpayer makes in terms of its economical selection or economic behaviour by taxation, calculation method
Using input-output analysis method, calculation are as follows:
ET=(Cd+Cid+Pr)×rt
Wherein, CdFor direct engineering cost；CidFor overhead cost；PrFor profit；rtFor the tax rate.
1.2.3) regional production increase value Δ E per capitaGDPA:
The index is the regional GDP calculated in the regular period by average permanent resident population, is to measure a regional economy
The important indicator of state of development, it embodies this area's living standards of the people, and calculation method uses input-output analysis method, calculates
Mode are as follows:
Wherein:
EGDPA=(Cr+Ir+Ex)/Np
Wherein, CrFor area consumption；IrFor regional investment；ExFor regional net export；NpFor annual permanent resident population's quantity.WithRespectively regional GDP before and after power transmission and transformation key project construction；α is electric grid investment coefficient, and α=
Ceinv/Cainv, CeinvFor the investment of power transmission and transformation Important Project, CainvFor regional society gross investment during power transmission and transformation key project construction.
1.2.4) local revenue increasing value Δ ELFR:
The index is local finance annual revenue, including local the same level income, central tax return and transfer payment, place
Fiscal revenues are also to reflect the important indicator of an areas comprehensive economic strength, and calculation method uses input-output analysis method, meter
Calculation mode are as follows:
Wherein,WithRespectively local revenue before and after power transmission and transformation key project construction；α is electric grid investment
Coefficient.
1.2.5) upstream and downstream production capacity pulls benefit EM:
The index is able to reflect the construction of project of transmitting and converting electricity for driving upstream equipment manufacture and downstream related industry to send out
The positive effect played is opened up, calculation method uses opportunity cost method, calculation are as follows:
Wherein, SM,iPut quantity/weight of material aside as useless for i-th kind；CM,iPut the price of material aside as useless for i-th kind；Ω is all
Put the complete or collected works of material aside as useless.
1.2.6) spare investment reduction volume EAN:
The construction that the index is able to reflect project of transmitting and converting electricity can reinforce grid structure, promote regional internet, improve power grid and support
The ability and operational reliability of imperial accident, to reduce spare capacity, calculation method uses assessment methods of shallow price, calculation
Are as follows:
EAN=SnCn
Wherein, SnTo reduce installed capacity；CnFor new-built unit unit cost.
1.2.7) energy delivery configures benefit ETR:
The index is able to reflect transmission of electricity and replaces the benefit for alleviating traffic pressure brought by defeated coal, and calculation method uses machine
Meeting cost-or-market method, calculation are as follows:
ETR=SwerMcCt-Swerpte
Wherein, SweThe generated energy conveyed for west area to east midland load area；R is that thermoelectricity trnamission capacity accounts for total electricity
Ratio；McFor the average consumption of unit generated energy coal；CtFor the average transportation cost of coal per ton；pteFor the defeated of unit trnamission capacity
Electric cost.
1.3) environmental development index, including Indices of Ecological, resource environment index, noise circumstance index and power supply architecture
Index, wherein Indices of Ecological includes water resource cost, Air resource cost and land resource cost, resource environment index
Including consumables cost, noise circumstance index includes electromagnetic interference noise and radio interference noise, and power supply architecture index includes changing
Stone energy consumption variable quantity.
1.3.1) water resource cost Cs:
The index is able to reflect electricity transmitting and converting construction in the cost of water resource use aspects, and calculation method uses chance
Cost-or-market method, calculation are as follows:
Cs=T δ1/D+Bδ2/D+Cδ3/D
Wherein, T is substation year water intaking total amount (including once-through cooling water) in the water system of region；D is power generation total amount；δ1To take
Conversion coefficient of the water with generated energy；δ2It is waste discharge water with the conversion coefficient of generated energy；C is the total emission volumn of certain pollutant；δ3
It is water with the conversion coefficient of generated energy.
1.3.2) Air resource cost APep:
The index is able to reflect the atmosphere pollution that project of transmitting and converting electricity generates in process of construction, and construction phase of project mainly generates
Influence be dust emission etc. that the civil engineerings activities such as tail gas, construction and excavation that construction fugitive dust and vehicle discharge generate, calculating side
Method uses opportunity cost method, calculation are as follows:
APep=ηsPs+ηNPN+0.02ηcPc
Wherein, Ps、PNAnd PcRespectively SO2、NOXAnd CO2Transaction value；ηs、ηNAnd ηcRespectively SO2、NOXAnd CO2's
The transformation ratio of transaction value and electricity price.
1.3.3) land resource cost SPL:
The index is able to reflect influence of the project of transmitting and converting electricity in construction time and runtime to land resource, mainly includes soil
Occupancy, removing and resettlement and soil erosion etc., calculation method use assessment methods of shallow price, calculation are as follows:
Wherein, PTFor land allocation price；PFOther purposes abandoned within the following regular period for soil occupied by project
Present worth of income summation, andτ is the quantity in project land occupation plot, and t is not
Come the regular period, NB is the annual net bennefits of soil best use occupied by project, and η is that the annual net income of the best use in soil is same
Suffered electricity obtains the transformation ratio of income；R is the annual average rate of increase of best use net benefits；isFor social discount rate；PCFor
The greater in the bid price or auction price in soil.
1.3.4) consumables cost Δ EHC:
The index is able to reflect the materials such as steel, iron, the aluminium reduced during electricity transmitting and converting construction by using new technology
Consumption, calculation method use input-output analysis method, calculation are as follows:
ΔEHC=Δ CL × (ηXCX-ηHCH)
Wherein, Δ CL is the variable quantity of consumptive material before and after technological improvement；CXAnd CHFor before technological improvement and improved cost；
ηXAnd ηHFor cost before and after technological improvement and the transformation ratio between electricity.
1.3.5) electromagnetic interference noise Δ Edc:
The index is able to reflect influence of the electromagnetic noise in project of transmitting and converting electricity operational process to environment, and calculation method is adopted
With opportunity cost method, calculation are as follows:
ΔEdc=Δ exl×αCxl+Δebdz×αCbdz
Wherein, Δ exlFor the difference of line project electric field strength original electric field strength and electric field strength up to standard, unit kV/
m；CxlFor cost needed for the every reduction unit electric field intensity of line project, unit is member；ΔebdzFor substation project electric field strength
The difference of original electric field strength and electric field strength up to standard, unit kV/m；CbdzFor the every reduction unit electric field intensity of substation project
Required cost, unit are member；α is the transformation ratio of cost and electricity.
1.3.6) radio interference noise delta Ewx:
The index is able to reflect the interference generated in electricity transmitting and converting construction and operational process to the normal operation of radio,
Its calculation method uses opportunity cost method, calculation are as follows:
Wherein, Δ LxlFor the difference of construction period line project audible noise raw decibel and decibel up to standard；For the construction period
The every cost for reducing by 1 decibel of line project audible noise, unit are member/dB；For construction period substation project audible noise
The difference of raw decibel and decibel up to standard, unit dB；For runtime substation project audible noise raw decibel with reach
Mark the difference of decibel, unit dB；For the every cost for reducing by 1 decibel of construction period substation project audible noise, unit is
Member/dB；For the every cost for reducing by 1 decibel of runtime substation project audible noise, unit is member/dB；llmFor m sections of lines
Road length, unit km；α is the transformation ratio of cost and electricity.
1.3.7) fossil energy consumption variation delta Ehs:
The index is able to reflect project of transmitting and converting electricity and puts into operation and can reduce coal etc. by the configuration of the optimization of region of renewable resource
Fossil energy consumption amount, calculation method use opportunity cost method, calculation are as follows:
Wherein,For the unit treatment cost of carbon dioxide, unit is member/m3；CotherFor the unit of other polluted gas
Treatment cost, unit are member/m3；σ is the CO2 emission coefficient of electric coal, i.e. institute during every kilogram of standard coal combustion power generation
The use kilogram CO2 emissions indicated of generation；θ is the polluted gas emission factor of electric coal, i.e. every kilogram of standard coal is firing
Burn the generated kilogram polluted gas discharge amount indicated in power generation process；ΔEnewFor the power consumption for substituting fossil energy
Amount；α is other polluted gas emission factors of electric coal.
2) according to project of transmitting and converting electricity Comprehensive Benefit Evaluation index system, the collaboration Optimized model of project of transmitting and converting electricity is constructed, is had
Body are as follows:
2.1) according to the project of transmitting and converting electricity Comprehensive Benefit Evaluation index system of building, the collaboration optimization of project of transmitting and converting electricity is constructed
Model.
The comprehensive benefit of project of transmitting and converting electricity is divided into social benefit, environmental benefit and economic benefit, influences each other between three,
It mutually restricts, wherein Social benefit and economic benefit is positive benefit, and environmental benefit can generate a part of negative benefit.With defeated
Power transformation engineering conveys the increase of electricity, and Social benefit and economic benefit increases therewith, but the negative benefit in environmental benefit also can
Increase therewith, thus drags down the comprehensive benefit of project of transmitting and converting electricity.It can be seen that the economic benefit and social benefit of project of transmitting and converting electricity
It influences each other, interdependence, and directly it is limited by the conveying electricity of project of transmitting and converting electricity.Calculate the optimal synthesis effect of project of transmitting and converting electricity
Benefit needs to consider the collaboration restricting relation between all kinds of benefits, and under a certain conveying electricity, the variation of negative benefit is for positive benefit
Influence is up to minimum, and electricity at this time is optimal electricity, and the sum of social and economic benefit at this time is optimal synthesis
Benefit.
The calculating of project of transmitting and converting electricity optimal synthesis benefit is using collaboration Optimized model in the present invention:
Max (S)=Cs+APep+SPL+ΔEHc+ΔEdc+ΔEwx+ΔEhs
Wherein, E is the sum of economic benefit and social benefit, and S is environmental benefit.
2.2) constraint condition that collaboration Optimized model needs to meet is determined.
2.2.1) electric power constrains: project of transmitting and converting electricity is actual to transmit electric power less than the specified transmission capacity of project of transmitting and converting electricity.
2.2.2) Constraint: the actual fed electricity of project of transmitting and converting electricity is less than the demand electricity of receiving end power grid.
3) the required data of project of transmitting and converting electricity to be evaluated, rate for incorporation into the power network, project of transmitting and converting electricity including project of transmitting and converting electricity are obtained
Landing electricity price, project of transmitting and converting electricity conveying electricity and above-mentioned calculation formula in associated parameter data.
4) linear search algorithm is used, according to the information of acquisition, collaboration Optimized model is solved, obtains economic benefit and society
The optimal value of the sum of benefit E and environmental benefit S, and then obtain the comprehensive benefit Y=E+S of project of transmitting and converting electricity to be evaluated, wherein
Linear search algorithm is method disclosed in the prior art, and detailed process does not repeat herein.
Based on the calculation method of above-mentioned project of transmitting and converting electricity comprehensive benefit, the present invention also provides a kind of comprehensive effects of project of transmitting and converting electricity
The computing system of benefit, comprising:
Assessment indicator system constructs module, for being based on economic benefit, social benefit and environmental benefit, constructs power transmission and transformation work
Journey Comprehensive Benefit Evaluation index system；
Model construction module, for constructing project of transmitting and converting electricity according to project of transmitting and converting electricity Comprehensive Benefit Evaluation index system
Cooperate with Optimized model；
Data acquisition module, for obtaining the required data of project of transmitting and converting electricity to be evaluated；
Comprehensive benefit solves module, for using linear search algorithm, according to the required data of acquisition, solves to be evaluated defeated
The collaboration Optimized model of power transformation engineering, obtains the comprehensive benefit of project of transmitting and converting electricity to be evaluated.
The various embodiments described above are merely to illustrate the present invention, all equivalent changes carried out based on the technical solution of the present invention
It changes and improves, should not exclude except protection scope of the present invention.
Claims (8)
1. a kind of calculation method of project of transmitting and converting electricity comprehensive benefit, which comprises the following steps:
Based on economic benefit, social benefit and environmental benefit, project of transmitting and converting electricity Comprehensive Benefit Evaluation index system is constructed；
According to project of transmitting and converting electricity Comprehensive Benefit Evaluation index system, the collaboration Optimized model of project of transmitting and converting electricity is constructed；
Obtain the required data of project of transmitting and converting electricity to be evaluated；
The collaboration Optimized model of project of transmitting and converting electricity to be evaluated is solved, is obtained according to the required data of acquisition using linear search algorithm
To the comprehensive benefit of project of transmitting and converting electricity to be evaluated.
2. a kind of calculation method of project of transmitting and converting electricity comprehensive benefit as described in claim 1, which is characterized in that the power transmission and transformation
On The Comprehensive Beneficial Results assessment indicator system includes social development indices, wherein the social development indices include that technological progress refers to
Mark, coordinated development index, family life improve index, social life improves index, the influence index to social sustainable development
With network system improved efficiency index；
1) technology progress parameter includes New technical use benefit, its calculation formula is:
Wherein, ECYFor New technical use benefit；For the engineering dosage of kth kind new material；For the unit of kth kind new material
Price；For the engineering dosage of l kind new equipment；For the unit price of l kind new equipment；C is power generation and supply
The responsibility coefficient of industry；
2) coordinated development index includes that employment benefit and urbanization benefit, calculation formula are respectively as follows:
Wherein,For benefit of obtaining employment in jth year；For jth year increased total employment；For jth year average per capita disposable
Income；
Wherein, EURBFor urbanization benefit；Δ l is newly-increased urban population quantity；Δ r is town and country per capita income gap；
3) it includes that electric appliance owning amount increases contribution, resident's distribution capacity increases contribution per family and resident's limit that family life, which improves index,
Electric duration reduction amount, calculation formula are respectively as follows:
EHACG=(Zj-Z'j)×p
Wherein, EHACGIncrease for electric appliance owning amount per family and contributes；ZjFor after the j cell project implementation when annual each household electricity consumption；
Z'jFor the previous average annual electricity consumption of annual each household of the j cell project implementation；P is electricity price；
Ej=pj×ΔQj×nj
Wherein, EjIncrease for resident's distribution capacity and contributes, pjFor j cell sale of electricity valence；ΔQjIt is newly-increased for j cell year average each household
Distribution capacity；njFor resident's quantity of j cell；
Wherein,It rations the power supply duration reduction amount for resident；pjFor j sale of electricity valence；ΔtjDuration reduction amount of for j more rationing the power supply in year influences
Electricity；
4) it includes that electric car ownership increases and inhibit stake electrovalence rise benefit, calculation formula that social life, which improves index,
It is respectively as follows:
ENET=Δ nj×Dj×Oj×pj, j=1,2 ...
Wherein, ENETFor the growth of electric car ownership；J is corresponding new energy vehicle owning amount；ΔnjPossess for new energy vehicle
Amount；DjMilimeter number is travelled every year on average for the vehicle；OjIt is averaged every gas mileage for the vehicle；pjFor oil price；
Wherein,To inhibit stake electrovalence rise benefit；To land electricity price；pjFor engineering location locality stake electrovalence；Qj
For year area electricity consumption；For the total trnamission capacity in year area；
5) to the influence index of social sustainable development include renewable energy configuration optimization contribution and system safety and stability benefit,
Its calculation formula is respectively as follows:
Wherein,For the contribution of renewable energy configuration optimization；PjFor the receiving end average rate of electricity sold in jth year；ejFor the line loss in jth year
Rate；For the transmission of electricity total capacity in jth year；
RP=NRP/NAP× 100%
Wherein, RPFor system safety and stability benefit；NRPFor the number of elements for meeting N-1；NAPFor total number of elements；
6) network system improved efficiency index includes that power quality improves benefit and efficiency growth contribution, is calculated public
Formula is respectively as follows:
Wherein,Improve benefit for power quality；The economic loss generated for single instantaneous power failure；ΔNPQTo build up
The instantaneous power failure number difference of preceding more reductions；
Wherein, PjFor sales rate of electricity；QjThe electricity saved for reducing loss measure.
3. a kind of calculation method of project of transmitting and converting electricity comprehensive benefit as claimed in claim 2, which is characterized in that the power transmission and transformation
On The Comprehensive Beneficial Results assessment indicator system includes indicator of economic development, wherein the indicator of economic development includes to national economy
Directly affect index, the influence index to Regional Economic Development and the influence index to most optimum distribution of resources；
It A include) engineering economy net present value (NPV) (ENPV) and tax efficiency, calculation formula point to the index that directly affects of national economy
Not are as follows:
Wherein, EPFor engineering economy net present value (NPV)；CiFor cash inflow；CoFor cash flow；N is the calculating phase；I is society's folding
Now rate；T is the life of project；
ET=(Cd+Cid+Pr)×rt
Wherein, ETFor tax efficiency；CdFor direct engineering cost；CidFor overhead cost；PrFor profit；rtFor the tax rate；
B regional production increase value and local revenue increasing value per capita, meter) are included to the influence index of Regional Economic Development
Formula is calculated to be respectively as follows:
Wherein, Δ EGDPAFor regional production increase value per capita；WithGround respectively before and after power transmission and transformation key project construction
Area's total output value；α is electric grid investment coefficient, and α=Ceinv/Cainv, CeinvFor the investment of power transmission and transformation Important Project, CainvFor defeated change
Regional society gross investment during electric key project construction；
Wherein, Δ ELFRFor local revenue increasing value；WithPlace respectively before and after power transmission and transformation key project construction
Fiscal revenues；α is electric grid investment coefficient；
It C include) that upstream and downstream production capacity pulls benefit, spare investment reduction volume and energy delivery to the influence index of most optimum distribution of resources
Cost, calculation formula are respectively as follows:
Wherein, EMBenefit is pulled for upstream and downstream production capacity；SM,iPut quantity/weight of material aside as useless for i-th kind；CM,iMaterial is put aside as useless for i-th kind
The price of material；Ω is all complete or collected works for putting material aside as useless；
EAN=SnCn
Wherein, EANFor spare investment reduction volume；SnTo reduce installed capacity；CnFor new-built unit unit cost；
ETR=SwerMcCt-Swerpte
Wherein, ETRFor energy delivery cost；SweThe generated energy conveyed for west area to east midland load area；R is that thermoelectricity is defeated
Electricity accounts for the ratio of total electricity；McFor the average consumption of unit generated energy coal；CtFor the average transportation cost of coal per ton；pteFor
The Transmission Cost of unit trnamission capacity.
4. a kind of calculation method of project of transmitting and converting electricity comprehensive benefit as claimed in claim 3, which is characterized in that the power transmission and transformation
On The Comprehensive Beneficial Results assessment indicator system includes environmental development index, wherein the environmental development index includes that ecological environment refers to
Mark, resource environment index, noise circumstance index and power supply architecture index；
A) Indices of Ecological includes that water resource cost, Air resource cost and land resource cost, calculation formula are respectively as follows:
Cs=T δ1/D+Bδ2/D+Cδ3/D
Wherein, CsFor water resource cost；T is substation year water intaking total amount in the water system of region；D is power generation total amount；δ1It is same for water withdrawal
The conversion coefficient of generated energy；δ2It is waste discharge water with the conversion coefficient of generated energy；C is the total emission volumn of certain pollutant；δ3For water
With the conversion coefficient of generated energy；
APep=ηsPs+ηNPN+0.02ηcPc
Wherein, APepFor Air resource cost；Ps、PNAnd PcRespectively SO2、NOXAnd CO2Transaction value；ηs、ηNAnd ηcRespectively
SO2、NOXAnd CO2Transaction value and electricity price transformation ratio；
Wherein, SPLFor land resource cost；PTFor land allocation price；PFIt is soil occupied by project within the following regular period
The summation of the present worth of income for other purposes abandoned, andτ is for project land occupation
The quantity of block, t are the following regular period, and NB is the annual net bennefits of soil best use occupied by project, and η is the best use in soil
The annual net income on way obtains the transformation ratio of income with suffered electricity；R is the annual average rate of increase of best use net benefits；isFor
Social discount rate；PCFor the greater in the bid price or auction price in soil；
B) resource environment index includes consumables cost, and noise circumstance index includes electromagnetic interference noise and radio interference noise,
Its calculation formula is respectively as follows:
ΔEHC=Δ CL × (ηXCX-ηHCH)
Wherein, Δ EHCFor consumables cost；Δ CL is the variable quantity of consumptive material before and after technological improvement；CXAnd CHBefore technological improvement and to change
Cost after；ηXAnd ηHFor cost before and after technological improvement and the transformation ratio between electricity；
ΔEdc=Δ exl×αCxl+Δebdz×αCbdz
Wherein, Δ EdcFor electromagnetic interference noise；ΔexlFor the original electric field strength of line project electric field strength and electric field strength up to standard
Difference；CxlFor cost needed for the every reduction unit electric field intensity of line project；ΔebdzIt is original for substation project electric field strength
The difference of electric field strength and electric field strength up to standard；CbdzFor cost needed for the every reduction unit electric field intensity of substation project；α is
The transformation ratio of cost and electricity；
Wherein, Δ EwxFor radio interference noise；ΔLxlFor construction period line project audible noise raw decibel and decibel up to standard
Difference；For the every cost for reducing by 1 decibel of construction period line project audible noise；It can for construction period substation project
Listen the difference of noise raw decibel Yu decibel up to standard；For runtime substation project audible noise raw decibel and up to standard point
The difference of shellfish；For the every cost for reducing by 1 decibel of construction period substation project audible noise；For runtime substation's work
The every cost for reducing by 1 decibel of journey audible noise；llmFor m sections of line lengths；α is the transformation ratio of cost and electricity；
C) power supply architecture index includes fossil energy consumption variable quantity, its calculation formula is:
Wherein, Δ EhsFor fossil energy consumption variable quantity；For the unit treatment cost of carbon dioxide；CotherFor other pollutions
The unit treatment cost of gas；σ is the CO2 emission coefficient of electric coal；θ is the polluted gas emission factor of electric coal；ΔEnew
For the power consumption for substituting fossil energy；α is other polluted gas emission factors of electric coal.
5. a kind of calculation method of project of transmitting and converting electricity comprehensive benefit as claimed in claim 4, which is characterized in that according to building
Project of transmitting and converting electricity Comprehensive Benefit Evaluation index system constructs the collaboration Optimized model of project of transmitting and converting electricity, detailed process are as follows:
1. constructing the collaboration Optimized model of project of transmitting and converting electricity according to the project of transmitting and converting electricity Comprehensive Benefit Evaluation index system of building:
Max (S)=Cs+APep+SPL+ΔEHC+ΔEdc+ΔEwx+ΔEhs
Wherein, E is the sum of economic benefit and social benefit, and S is environmental benefit；
2. determining the constraint condition that collaboration Optimized model needs to meet.
6. a kind of calculation method of project of transmitting and converting electricity comprehensive benefit as claimed in claim 5, which is characterized in that the constraint item
Part includes electric power constraint and Constraint, wherein the electric power is constrained to that project of transmitting and converting electricity is actual to transmit electric power less than defeated change
The specified transmission capacity of electrical engineering, the Constraint are that the actual fed electricity of project of transmitting and converting electricity is less than the demand of receiving end power grid
Electricity.
7. a kind of calculation method of project of transmitting and converting electricity comprehensive benefit as claimed in claim 5, which is characterized in that described to be evaluated
The comprehensive benefit of project of transmitting and converting electricity is Y=E+S.
8. a kind of computing system of project of transmitting and converting electricity comprehensive benefit characterized by comprising
Assessment indicator system constructs module, and for being based on economic benefit, social benefit and environmental benefit, building project of transmitting and converting electricity is comprehensive
Close benefit appraisal index system；
Model construction module, for constructing the collaboration of project of transmitting and converting electricity according to project of transmitting and converting electricity Comprehensive Benefit Evaluation index system
Optimized model；
Data acquisition module, for obtaining the required data of project of transmitting and converting electricity to be evaluated；
Comprehensive benefit solves module, for solving power transmission and transformation to be evaluated according to the required data of acquisition using linear search algorithm
The collaboration Optimized model of engineering, obtains the comprehensive benefit of project of transmitting and converting electricity to be evaluated.
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| CN115511221A (en) * | 2022-11-04 | 2022-12-23 | 北京建工环境修复股份有限公司 | Site repair engineering environment footprint accounting system |
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| CN111144729A (en) * | 2019-12-16 | 2020-05-12 | 国网山东省电力公司经济技术研究院 | Construction method and device of power system benefit evaluation model and computing equipment |
| CN115511221A (en) * | 2022-11-04 | 2022-12-23 | 北京建工环境修复股份有限公司 | Site repair engineering environment footprint accounting system |
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