CN110490480A - A kind of newly-built transmission line of electricity economic benefit quantitative estimation method - Google Patents
A kind of newly-built transmission line of electricity economic benefit quantitative estimation method Download PDFInfo
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Abstract
A kind of newly-built transmission line of electricity economic benefit quantitative estimation method, comprehensive assessment is carried out to the economic benefit of newly-built transmission line of electricity, can quantitative analysis create transmission line of electricity to grid company income generate influence, different strategies can be formulated for different expenses, influence of the newly-built transmission line of electricity to power selling income, amortization charge, O&M expense and line loss expense has been comprehensively considered in assessment, it constructs the quantitative analysis of mathematical-specific model and creates influence of the transmission line of electricity to electrical network economy benefit, obtain the mathematical model of the overall economic efficiency F of newly-built transmission line of electricity: F=Fsell‑FDep‑Foper‑FLoss, facilitate engineering decision analysis, save money, improve the economic benefit of newly-built transmission line of electricity.
Description
Technical field
The present invention relates to power engineering assessment technology field, especially a kind of newly-built transmission line of electricity economic benefit quantitative evaluation
Method.
Background technique
Power delivery circuit is a vital pass in power grid construction, and with socio-economic development, local power delivery circuit is gradually
Tend to full-load run, it is therefore desirable to newly-built transmission line of electricity.And industry restructuring and some areas developmental difference, and result in certain
A little transmission line of electricity underrun, cause investment waste.The investment construction of transmission line of electricity generally prior to the growth of load, due to
The uncertainty of load, power grid are faced with investment withdrawal problem.It is therefore desirable to the economic benefit progress to newly-built transmission line of electricity
Quantitative analysis provides more reference frames for engineering decision.
The decision of newly-built transmission line of electricity is based primarily upon electric network security consideration at present, has ignored transmission line of electricity bring economy
Benefit.Traditional electrical network economy performance evaluation only considers the income of new construction, have ignored depreciation cost, operation and maintenance expenses caused by it and
The increase of line loss.
Publication is retrieved, discovery and the maximally related following patent document of the technical program:
The prediction technique and forecasting system (CN107944642A) of a kind of electric grid investment demand disclose a kind of electric grid investment
The prediction technique and forecasting system of demand, the prediction technique is the following steps are included: the presence association for 1) choosing influence electric grid investment is whole
Relationship and the Variables Sequence with conspicuousness, pre-establish electric grid investment demand long-run equilibrium model；2) solving electric grid investment needs
Long-run equilibrium model is sought, the long-run equilibrium projected relationship of electric grid investment sequence Yu relevant variable sequence is obtained；3) Granger is carried out
Causality Test obtains the causality between electric grid investment sequence and relevant variable sequence；4) vector error correction inspection is carried out,
Obtain corresponding electric grid investment variable quantity；5) logarithm inversion is carried out respectively to the corresponding electric grid investment variable quantity of each Variables Sequence
It changes, in conjunction with the electric grid investment base value of previous year, obtains the corresponding current year electric grid investment of each Variables Sequence and adjust in short term in advance
Measured value invention can be widely used in electric system electric grid investment quantitative evaluation technical field.
Power quality economic loss and energy-saving benefit assessment are disclosed with analysis system method for building up (CN108564302A)
A kind of power quality economic loss and energy-saving benefit assessment and analysis system method for building up, carry out data requirements analysis；By dividing
Power quality economy cost structure and power quality economy data model are analysed, power quality economy cost structure frame is established
Frame；Carry out functional requirement analysis；Quantitative evaluation is carried out to electrical energy power quality disturbance impact factor, and based on fuzzy theory, normalization
Method and process immunization time obtains for evaluating the probabilistic factor of evaluation of power quality response events, and establishes electric energy
The statistical models of quality economy loss；System structural analysis is carried out, including the analysis to following structure function: data are supervised automatically
Brake；Power quality economic loss, energy-saving benefit assess the automatic computing function of data；Document upload function；Portal show and
System integration function；Authority management module function.Present invention improves the energy conservation of power quality bring and comprehensive benefit assessment sides
Method, to provide decision support to power grid and user.
By the comparative analysis to patent document disclosed above, it is applicant's understanding that the application is comprehensively considering newly-built transmission of electricity
There are larger differences with the prior art for benefit influence factor of route, and building mathematical-specific model etc., through in analysis
Stating patent not influences the novelty of the application.
Summary of the invention
It is an object of the invention to provide a kind of newly-built transmission line of electricity economic benefit amount in place of overcome the deficiencies in the prior art
Change appraisal procedure, which has evaluated the economic benefit of newly-built transmission line of electricity, has comprehensively considered newly-built transmission line of electricity to selling
The influence of electric income, amortization charge, O&M expense and line loss expense, and construct mathematical model quantitative analysis and create transmission line of electricity pair
The influence of electrical network economy benefit.
A kind of newly-built transmission line of electricity economic benefit quantitative estimation method, comprising the following steps:
Step 1: newly-built transmission line of electricity supply load is decomposed；The supply load of newly-built transmission line of electricity is decomposed into residence
People's household electricityGeneral industry and commerce electricity consumptionBig commercial powerWith agricultural production electricity consumptionFour classes, then create
The power supply capacity Q of transmission line of electricitynewThere is following relationship:
Step 2: calculating newly-built influence of the transmission line of electricity to power selling income；Newly-built transmission line of electricity causes the variation of power selling income
Amount can indicate are as follows:
Wherein, λ1For resident living power utility sale of electricity price, λ2For general industry and commerce electricity consumption sale of electricity price, λ3It is big industrial
Electric sale of electricity price, λ4For agricultural production electricity consumption sale of electricity price；
Step 3: calculating the depreciation share the expenses of newly-built transmission line of electricity；Total amortization charge can divide after newly-built transmission line of electricity
For two parts, a part is the amortization charge of existing equipment, and a part is the amortization charge of newly-increased transmission line of electricity, therefore always
Amortization charge CDepIt can indicate are as follows:
Wherein, COrigAnd CNewThe respectively total assets of existing equipment and newly-built transmission line of electricity；NOrigAnd NNewIt is respectively former
There is the depreciable life of equipment and newly-built transmission line of electricity, when analyzing influence of the newly-built transmission line of electricity to power grid amortization charge, also needs
Total amortization charge is further shared, obtain depreciation share the expenses FDep:
Wherein, QnewFor the power supply capacity for creating transmission line of electricity, QtotalFor grid power transmission route total capacity,
Step 4: calculating the operation maintenance share the expenses of newly-built transmission line of electricity；The total operation maintenance expense C of power gridOperIt can be with
It indicates are as follows:
COper=γOper(Corig+Cnew)；
Wherein, γOperFor operation maintenance cost ratio coefficient, with the factors such as voltage class locating for load and geographical location
Correlation,
When analyzing influence of the newly-built transmission line of electricity to power grid operation maintenance cost, it is also necessary to total operation maintenance expense into
One step is shared, and operation maintenance share the expenses F is obtainedOper:
Step 5: calculating the line loss share the expenses of newly-built transmission line of electricity, which can indicate are as follows:
Wherein, QgAnd QdThe power supply volume and electricity sales amount of respectively newly-built transmission line of electricity；
Step 6: calculating the overall economic efficiency of newly-built transmission line of electricity, the overall economic efficiency for creating transmission line of electricity can be with table
It is shown as, the increase of power selling income, subtracts depreciation share the expenses, operation maintenance share the expenses and line loss share the expenses, that is, create defeated
The overall economic efficiency F of electric line can be indicated are as follows:
F=Fsell-FDep-Foper-FLoss。
It advantages of the present invention and has the technical effect that
1, a kind of newly-built transmission line of electricity economic benefit quantitative estimation method of the invention, being capable of the newly-built power transmission line of quantitative analysis
The influence that road generates grid company income facilitates engineering decision analysis.
2, a kind of newly-built transmission line of electricity economic benefit quantitative estimation method of the invention, have rated from different perspectives create it is defeated
The economic benefit of electric line considers the influence to power selling income, it is contemplated that amortization charge, operation and maintenance cost and line loss
Expense provides more comprehensive data for project appraisal personnel and supports.
3, a kind of newly-built transmission line of electricity economic benefit quantitative estimation method of the invention enough calculates newly-built transmission line of electricity point
Amortization charge, O&M expense and the line loss expense at booth can formulate different strategies for different expenses, effectively save and take
With.
Detailed description of the invention
Fig. 1 is the calculation flow chart of the newly-built transmission line of electricity economic benefit quantitative estimation method of the present invention.
Specific embodiment
For that can further appreciate that the contents of the present invention, feature and effect, the following examples are hereby given, and cooperates attached drawing detailed
It is described as follows.It should be noted that the present embodiment be it is descriptive, be not restrictive, cannot thus limit guarantor of the invention
Protect range.
A kind of newly-built transmission line of electricity economic benefit quantitative estimation method, comprising the following steps:
Step 1: newly-built transmission line of electricity supply load is decomposed；The supply load of newly-built transmission line of electricity is decomposed into residence
People's household electricityGeneral industry and commerce electricity consumptionBig commercial powerWith agricultural production electricity consumptionFour classes, then create
The power supply capacity Q of transmission line of electricitynewThere is following relationship:
Step 2: calculating newly-built influence of the transmission line of electricity to power selling income；Newly-built transmission line of electricity causes the variation of power selling income
Amount can indicate are as follows:
Wherein, λ1For resident living power utility sale of electricity price, λ2For general industry and commerce electricity consumption sale of electricity price, λ3It is big industrial
Electric sale of electricity price, λ4For agricultural production electricity consumption sale of electricity price；
Step 3: calculating the depreciation share the expenses of newly-built transmission line of electricity；Total amortization charge can divide after newly-built transmission line of electricity
For two parts, a part is the amortization charge of existing equipment, and a part is the amortization charge of newly-increased transmission line of electricity, therefore always
Amortization charge CDepIt can indicate are as follows:
Wherein, COrigAnd CNewThe respectively total assets of existing equipment and newly-built transmission line of electricity；NOrigAnd NNewIt is respectively former
There is the depreciable life of equipment and newly-built transmission line of electricity, when analyzing influence of the newly-built transmission line of electricity to power grid amortization charge, also needs
Total amortization charge is further shared, obtain depreciation share the expenses FDep:
Wherein, QnewFor the power supply capacity for creating transmission line of electricity, QtotalFor grid power transmission route total capacity,
Step 4: calculating the operation maintenance share the expenses of newly-built transmission line of electricity；The total operation maintenance expense C of power gridOperIt can be with
It indicates are as follows:
COper=γOper(Corig+Cnew)；
Wherein, γOperFor operation maintenance cost ratio coefficient, with the factors such as voltage class locating for load and geographical location
Correlation,
When analyzing influence of the newly-built transmission line of electricity to power grid operation maintenance cost, it is also necessary to total operation maintenance expense into
One step is shared, and operation maintenance share the expenses F is obtainedOper:
Step 5: calculating the line loss share the expenses of newly-built transmission line of electricity, which can indicate are as follows:
Wherein, QgAnd QdThe power supply volume and electricity sales amount of respectively newly-built transmission line of electricity；
Step 6: calculating the overall economic efficiency of newly-built transmission line of electricity, the overall economic efficiency for creating transmission line of electricity can be with table
It is shown as, the increase of power selling income, subtracts depreciation share the expenses, operation maintenance share the expenses and line loss share the expenses, that is, create defeated
The overall economic efficiency F of electric line can be indicated are as follows:
F=Fsell-FDep-Foper-FLoss。
Illustrate a specific embodiment of the invention to be clearer, a kind of example be provided below:
(1) the invention proposes the appraisal procedure that a kind of quantum chemical method creates transmission line of electricity economic benefit, comprehensively consider
Newly-built influence of the transmission line of electricity to power selling income, amortization charge, operation and maintenance cost and line loss expense, can more fully measure
The economic benefit of newly-built transmission line of electricity, facilitates Analysis of Policy Making.
(2) present invention decomposes the supply load of transmission line of electricity, and supply load is decomposed into resident living power utility, one
As four classes such as industry and commerce electricity consumption, big commercial power and agricultural production electricity consumption, for the different sale of electricity price of variety classes load, meter
Calculate corresponding expense variable quantity.
It (3), can the invention proposes the concept of depreciation share the expenses, operation maintenance share the expenses and line loss share the expenses
More accurate total calculation creates influence of the transmission line of electricity to all kinds of expenses.
(4) the invention proposes newly-built power transmission line comprehensive Calculation Method of Economic Benefit, create the comprehensive warp of transmission line of electricity
Ji benefit can be expressed as, and the increase of power selling income subtracts depreciation share the expenses, operation maintenance share the expenses and line loss and shares expense
With the overall economic efficiency F of that is, newly-built transmission line of electricity can be indicated are as follows:
F=Fsell-FDep-Foper-FLoss
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (1)
1. a kind of newly-built transmission line of electricity economic benefit quantitative estimation method, which comprises the following steps:
Step 1: newly-built transmission line of electricity supply load is decomposed；It is raw that the supply load of newly-built transmission line of electricity is decomposed into resident
Apply flexibly electricityGeneral industry and commerce electricity consumptionBig commercial powerWith agricultural production electricity consumptionFour classes then create transmission of electricity
The power supply capacity Q of routenewThere is following relationship:
Step 2: calculating newly-built influence of the transmission line of electricity to power selling income；Newly-built transmission line of electricity causes the variable quantity of power selling income can
To indicate are as follows:
Wherein, λ1For resident living power utility sale of electricity price, λ2For general industry and commerce electricity consumption sale of electricity price, λ3It is sold for big commercial power
Electricity price lattice, λ4For agricultural production electricity consumption sale of electricity price；
Step 3: calculating the depreciation share the expenses of newly-built transmission line of electricity；Total amortization charge can be divided into two after newly-built transmission line of electricity
A part, a part are the amortization charges of existing equipment, and a part is the amortization charge of newly-increased transmission line of electricity, therefore total depreciation
Expense CDepIt can indicate are as follows:
Wherein, COrigAnd CNewThe respectively total assets of existing equipment and newly-built transmission line of electricity；NOrigAnd NNewIt is respectively original to set
The depreciable life of standby and newly-built transmission line of electricity, when analyzing influence of the newly-built transmission line of electricity to power grid amortization charge, it is also necessary to right
Total amortization charge is further shared, and depreciation share the expenses F is obtainedDep:
Wherein, QnewFor the power supply capacity for creating transmission line of electricity, QtotalFor grid power transmission route total capacity,
Step 4: calculating the operation maintenance share the expenses of newly-built transmission line of electricity；The total operation maintenance expense C of power gridOperIt can indicate
Are as follows:
COper=γOper(Corig+Cnew)；
Wherein, γOperIt is related to the factors such as voltage class locating for load and geographical location for operation maintenance cost ratio coefficient,
When analyzing influence of the newly-built transmission line of electricity to power grid operation maintenance cost, it is also necessary to further divide total operation maintenance expense
Booth, obtains operation maintenance share the expenses FOper:
Step 5: calculating the line loss share the expenses of newly-built transmission line of electricity, which can indicate are as follows:
Wherein, QgAnd QdThe power supply volume and electricity sales amount of respectively newly-built transmission line of electricity；
Step 6: calculating the overall economic efficiency of newly-built transmission line of electricity, the overall economic efficiency of newly-built transmission line of electricity can indicate
For the increase of power selling income subtracts depreciation share the expenses, operation maintenance share the expenses and line loss share the expenses, i.e., newly-built transmission of electricity
The overall economic efficiency F of route can be indicated are as follows:
F=Fsell-FDep-Foper-FLoss。
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| CN112381421A (en) * | 2020-11-17 | 2021-02-19 | 三峡大学 | Source network load multi-main-body game planning method considering power market full dimensionality |
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| CN112381421A (en) * | 2020-11-17 | 2021-02-19 | 三峡大学 | Source network load multi-main-body game planning method considering power market full dimensionality |
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