CN107146033A - A kind of comprehensive benefit assessment method of photovoltaic construction and environmental improvement joint development - Google Patents
A kind of comprehensive benefit assessment method of photovoltaic construction and environmental improvement joint development Download PDFInfo
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Abstract
The invention discloses the comprehensive benefit assessment method of a kind of photovoltaic construction and environmental improvement joint development, the problem of comprehensive benefit that it solves photovoltaic construction and environmental improvement joint development assesses inaccurate, effect with the social benefit that can quantify photovoltaic construction and environmental improvement joint development, its technical scheme is：Comprise the following steps：Step one：Determine photovoltaic construction and environmental improvement joint development influence factors of comprehensive benefit；Step 2：Calculate photovoltaic construction and each influence factor numerical value of environmental improvement joint development comprehensive benefit；Step 3：Logical relation in analytical procedure one between each influence factor, it is determined that each element of wherein top, intermediate layer and bottom；Step 4：Judgement Matricies；Step 5：Calculate by relative weighting of the comparison element for the criterion；Step 6：Carry out consistency check and calculate photovoltaic construction and environmental improvement joint development comprehensive benefit.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, more particularly to a kind of photovoltaic construction and environmental improvement joint development
Comprehensive benefit assessment method.
Background technology
At present, photovoltaic generation has cleaning and regenerative nature, power consumption and environmental degradation increasingly it is serious instantly,
Greatly developing photovoltaic generation just turns into one of important means of reply energy and environment problem, the construction of large-scale photovoltaic power station with
Rise.Obviously, the construction of large-scale photovoltaic power station can bring notable shadow to many-sides such as region economy, society, environment
Ring, the comprehensive benefit that comprehensively construction of quantitative evaluation photovoltaic plant is brought, for optimization photovoltaic addressing, improve photovoltaic benefit with adjusting
Whole Regional development planning has great importance.
The Northwest enriched in China's solar energy resources, water resource is often deficient, and desertification degree is serious, environment
Governing problem is extremely urgent.The breach of environmental improvement is the construction of hydraulic engineering.But often regional power grid is thin in these areas
Weak, power supply is relatively deficient, it is difficult to meet hydraulic engineering electricity needs, photovoltaic construction can play good supporting role just.Together
When, with the construction of hydraulic engineering, by the implementation of the biological means such as planting trees and grass, Desertification Soil is governed, not only ring
Border problem is eased, can also the thus related industry such as Developing Animal, economic forest, medicinal material plantation, comprehensive benefit is substantially improved.
Research to photovoltaic constructing benefits focuses mostly in the quantitative analysis of its direct economic benefit at present, is primarily upon policy
Income, three aspects of gene-ration revenue and cost of investment.The research of policy income, is compensated mainly for different operation modes and policy
Under, comparison and the optimization of photovoltaic plant benefit；The emphasis of gene-ration revenue is then the electricity income of photovoltaic plant, to system reserve
Income in terms of the improvement of capacity and network loss etc.；And the analysis of cost of investment, then it is the angle run from industry, for photovoltaic
The link composition of generation technology industrial chain, provides including the analysis in terms of energy consumption, investment economy, discusses it to photovoltaic plant
The influence of economic benefit.In addition, some researchs also relates to the social benefit analysis of photovoltaic plant, but mostly qualitative beg for
By failing to be quantified；Quantitative analysis to environmental benefit is currently limited to the energy-saving and emission-reduction benefit of photovoltaic generation.
The comprehensive benefit of current photovoltaic construction and environmental improvement joint development, which is assessed, technically has certain deficiency：
1st, when carrying out comprehensive benefit assessment, social benefit considers incomplete, fails to consider that it is developed by influence area
The influence brought, including population distribution transfer, the exploitation in soil, development of related industry etc..
2nd, the mechanism that photovoltaic construction and environmental improvement joint development influence on regional development illustrates not clear, fails to explain joint
How the social benefit of development produces.
3rd, the social benefit of photovoltaic construction and environmental improvement joint development can not quantify, that is, fail to set up social benefit and connection
Close the quantitative relation formula of development scale.
Photovoltaic construction is the important component of the infrastructure of Regional Economic Development, photovoltaic influence to the construction regional economy hair
The mechanism of exhibition and corresponding quantitative analysis method need to be inquired into.It can be seen from the Lowry Model, new output value entrance must be brought
The socio-economic development rule of respective regions changes.Obviously, direct economic benefit and environmental benefit, photovoltaic construction and ring are removed
The joint development that border is administered inherently brings significant impact to regional industrial, land used, population distribution, and thus brings indirect warp
Benefit of helping and social benefit.Therefore, from photovoltaic construction and environmental improvement joint development to region land-use style, population, production
The influence of industry is set out quantitative evaluation its social benefit, can accurately analyze work of the photovoltaic plant construction to social economic development of region
With being also only the right way for assessing photovoltaic construction and environmental improvement joint development comprehensive benefit.
In summary, in the prior art for photovoltaic construction and the evaluation problem of environmental improvement joint development comprehensive benefit,
Still lack effective solution.
The content of the invention
In order to solve the deficiencies in the prior art, the invention provides the comprehensive of a kind of photovoltaic construction and environmental improvement joint development
Performance evaluation method is closed, is comprised the following steps：
Step one：History data collection is carried out to existing photovoltaic plant area and existing environmental improvement area, using sensitive
Analysis method is spent, photovoltaic construction and environmental improvement joint development influence factors of comprehensive benefit is determined, including：Economic benefit, environment
Benefit and social benefit；
Step 2：Photovoltaic construction and each influence factor numerical value of environmental improvement joint development comprehensive benefit are calculated, labor is employed
Auspicious model carries out quantum chemical method to photovoltaic plant and the social benefit of environmental improvement joint development；
Step 3：Logical relation in analytical procedure one between each influence factor, determines to pass stratum using analytic hierarchy process (AHP)
Secondary structure, builds frame diagram, it is determined that each element of wherein top, intermediate layer and bottom；
Step 4：Each element to same level is compared two-by-two on the importance of a certain criterion in last layer, structure
Make judgment matrix；
Step 5：Calculated by judgment matrix using feature vector method by phase of the comparison element for its corresponding upper strata criterion
To weight；
Step 6：Consistency check is carried out, if meeting consistency check, photovoltaic construction is calculated and combines hair with environmental improvement
Comprehensive benefit is opened up, otherwise, return to step four reconfigures each stratum's judgment matrix.
Its effect having is：The present invention sets up the analysis mould that photovoltaic plant construction influences on social economic development of region
Type, and provide land-use style conversion, population transfer, the newly-increased Quantitative Calculation Method with indirect economic effect of industry；Then, use
Analytic hierarchy process (AHP) determines that photovoltaic plant builds the weight of each side benefit, and assesses the comprehensive benefit for drawing photovoltaic plant.It has
Some effects：This method is made a breakthrough in photovoltaic plant assessment of social benefits method, and photovoltaic construction is developed in harmony with area
Planning has great importance.
Further, the present invention also uses following technical scheme：Also the calculating including economic benefit is adopted in the step 2
With net present value method, the calculating of environmental benefit uses Life cycle energy consumption method.
Its effect having：
The present invention calculates economic benefit using net present value method, above-mentioned using Life cycle energy consumption method computing environment benefit
The two is calculated as existing maturation method, calculates accurate, implements easy, stand test.
Further, the present invention also uses following technical scheme：
The Lowry Model is employed in the step 2 to carry out photovoltaic plant and the social benefit of environmental improvement joint development
Quantum chemical method, is specifically included：
2-1) determine the soil gross area type expression of photovoltaic plant region；
2-2) determine influence expression formula of the population transfer to service trade employment number；
2-3) determine service trade floor space expression formula；
2-4) determine the direct population transfer number expression formula that photovoltaic construction, water conservancy construction and environmental improvement are brought；
2-5) consider photovoltaic plant and hydraulic engineering scale, with land area, provide boundary condition expression formula；
2-6) utilize 2-1) -2-4) in expression formula calculate population relocation number and newly-increased land area, and utilize 2-5) in
Whether expression formula inspection items numerical value crosses the border, if there is Arbitrary Term to cross the border, this takes maximum according to actual conditions, and other are every
It is adjusted according to the Lowry Model.
Its effect having：
The Lowry Model in 1964, by American scholar labor it is auspicious it is first propose, for analyze urban employment and population distribution it
Between relation.Perfect by developing, model is now mainly used in illustrating influence of the basic industry change to Population Distribution, and
Relation between basic industry and service trade etc., is more conformed to actual using the progress photovoltaic construction of above-mentioned model with environmental improvement
Demand, is accurately calculated.
Further, the present invention also uses following technical scheme：
The step 2-1) in, it is specially：It is that generalized information system obtains related land used information by geographic position information system,
Including blank land area, basic industry land area, service trade land used and resident's industry land area, photovoltaic plant institute is determined
The soil gross area in region, the soil gross area of photovoltaic plant region is above-mentioned area sum.
Its effect having：
The data source of the soil gross area of above-mentioned calculating photovoltaic plant region comes from generalized information system, and data source is more
Accurately and reliably, blank land area, basic industry land area, service trade land used and resident's industry land face are considered respectively
Product, disclosure satisfy that the actual demand in the soil of photovoltaic plant region, the need for more conforming to the actual construction of project.
Further, the present invention also uses following technical scheme：
The step 2-2) in, it is specially：Population shifts the influence expression formula to service trade：
In formula：EkKth class service trade employment number is represented, N represents what photovoltaic construction, water conservancy construction and environmental improvement were brought
Direct population transfer number, akFor empirical value；Represent j subregion kth classes service trade employment number.
Its effect having：Kth class service trade employment number can be calculated by above-mentioned expression formula.
Further, the present invention also uses following technical scheme：
The step 2-3) in, it is specially：Determine service trade floor space expression formula：
In formula：ekFor empirical value, unit service employment floor space is represented,Represent j subregion kth classes service trade employment
Number.
Its effect having：Service trade floor space can be calculated by above-mentioned expression formula.
Further, the present invention also uses following technical scheme：
The step 2-4) in, expression formula is specially：
The influence that service trade is shifted to population：
In formula：F represents to bring resident's population with average each service trade employee that observation is obtained.
Its effect having：Photovoltaic construction, water conservancy construction and environmental improvement institute band can be calculated by above-mentioned expression formula
The direct population transfer number come.
Further, the present invention also uses following technical scheme：
The step 2-5) in, boundary condition expression formula is specially：
In formula, SVRepresent blank land area；It is every in second formula to represent that service trade water total amount, agricultural are used successively
Water inventory, urbanite water consumption total amount, photovoltaic plant water consumption and hydraulic engineering total supply；3rd formula is every to represent clothes successively
Business industry total electricity load, environmental improvement total electricity load, resident's total electricity load, hydraulic engineering electric load and photovoltaic plant hold
Amount.
Its effect having：It is used for the determination for determining each expression formula border by above-mentioned expression formula, judges whether to meet
Above-mentioned border regulation, is easy to follow-up computer to judge.
Further, the present invention also uses following technical scheme：
In the step 5, it is specially：
Weight vectors W is determined from feature vector method, i.e., the weight vectors W right sides are multiplied into judgment matrix A, its calculation formula is：
AW=λmaxW
Wherein λmaxFor the eigenvalue of maximum of judgment matrix, exist and uniquely.
Its effect having：Weight vectors can quickly be determined by above-mentioned formula.
Further, the present invention also uses following technical scheme：
In the step 6, as coincident indicator CR<Thinking when 0.1 can be by consistency detection, and its calculation formula is：
Wherein CI is the calculated value of coincident indicator, and its calculation formula is：
RI is random index, relevant with judgment matrix A exponent number n, can pass through acquisition of tabling look-up.
Its effect having：By may determine that whether above-mentioned calculating and analysis result lead to when the calculating of coincident indicator
Consistency detection is crossed, to carry out checking for unreasonable item.
Further, the present invention also uses following technical scheme：
In the step 6, comprehensive benefit value is calculated：Since the bottom, relative comprehensive benefit is asked for as the following formula first
Value, the like calculate the comprehensive benefit value of top numerical value, i.e. photovoltaic construction and environmental improvement joint development：
In-1=(In,1,In,2,…,In,m)W
In-1Represent the relative comprehensive benefit value of some element among (n-1)th layer, In,1,In,2,…,In,mRepresent the element pair
The value of m influence factor of the lower floor answered, I1As required comprehensive benefit value.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention can quantify the social benefit of photovoltaic construction and environmental improvement joint development.
The comprehensive benefit assessment method of the perfect photovoltaic construction of the present invention and environmental improvement joint development, can be achieved to society
Benefit is included in.
The present invention can provide the decision-making technique of comprehensive benefit for photovoltaic plant addressing.
The present invention can build regional areas development plan for photovoltaic plant and provide guidance.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.
Fig. 1 is the overview flow chart of the present invention；
Fig. 2 is photovoltaic construction and influence figure of the environmental improvement joint development to regional development；
Fig. 3 is photovoltaic construction and environmental improvement joint development comprehensive benefit frame diagram based on analytic hierarchy process (AHP).
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, there is comprehensive benefit in the prior art and assess the deficiency on calculating, in order to solve
As above technical problem, present applicant proposes the comprehensive benefit assessment method of a kind of photovoltaic construction and environmental improvement joint development.
In a kind of typical embodiment of the application, as shown in figure 1, being commented for photovoltaic construction with environmental improvement comprehensive benefit
Estimate flow chart：
(1) each influence factor of photovoltaic construction and environmental improvement joint development comprehensive benefit is determined, each influence factor is determined
The calculating computational methods of numerical value；
Specifically, according to having studied the influence it can be shown that photovoltaic plant and environmental improvement joint development comprehensive benefit
Factor should include direct economic benefit, environmental benefit and social benefit；The calculating of economic benefit can use net present value method, ring
Border benefit can use Life cycle energy consumption method, and the existing clear and definite method of the calculating of the two is not introduced；The innovation of the present invention
Point is the calculating to social benefit, and the innovative the Lowry Model that employs of the present invention combines hair with environmental improvement to photovoltaic plant
The social benefit of exhibition carries out quantum chemical method, and the Lowry Model was in 1964, by the auspicious first proposition of American scholar labor, for analyzing city
Relation between employment and population distribution.Perfect by developing, model is now mainly used in illustrating basic industry change to population point
The influence of cloth change, and relation between basic industry and service trade etc..Its flow is as follows：
The Lowry Model basic model and calculation formula are as follows：
A, determines land-use style expression formula,
In formula：Aj、WithRepresent that the soil gross area of photovoltaic plant region, blank are used respectively
Ground (U), basic industry (photovoltaic construction, water conservancy construction and environmental improvement) land used (B), service trade land used (S) and residential land
(H).Related land used information is obtained by geographic position information system (GIS).J represents different photovoltaic plant regions, its
Value is decided by the alternative site scheme number (J) of actual photovoltaic plant.
B, determines that population shifts the influence expression formula to service trade,
In formula：EkKth class service trade employment number is represented, N represents what photovoltaic construction, water conservancy construction and environmental improvement were brought
Direct population transfer number, akFor empirical value, regional population and the coefficient of relationship of regional service employment number are represented；Represent j subregions
Kth class service trade employment number；K represents the classification number of service trade.
C, determines service trade floor space expression formula,
In formula：ekFor empirical value, unit service employment floor space is represented,.
D, determines the influence that service trade is shifted to population,
In formula：F represents to bring resident's population with average each service trade employee that observation is obtained.
E, it is considered to photovoltaic plant and hydraulic engineering scale, with land area, provides boundary condition expression formula；
In formula, SVRepresent blank land area；It is every in second formula to represent that service trade water total amount, agricultural are used successively
Water inventory, urbanite water consumption total amount, photovoltaic plant water consumption and hydraulic engineering total supply；3rd formula is every once to represent clothes
Business industry total electricity load, environmental improvement total electricity load, resident's total electricity load, hydraulic engineering electric load and photovoltaic plant hold
Amount.
F, calculates population relocation number and newly-increased land area, and check each using expression formula in e using expression formula in a-d
Whether item numerical value crosses the border, if there is Arbitrary Term to cross the border, this takes maximum according to actual conditions；Other items are according to the Lowry Model
It is adjusted.
(2) by professional rule of thumb and existing research, the logical relation in analytical procedure (1) between each factor,
The recursive hierarchy structure of analytic hierarchy process (AHP) is set up, it is determined that each element of wherein top, intermediate layer and bottom, as shown in Figure 3；
(3) expert opinion is based on, the importance to each element of same level on a certain criterion in last layer carries out two
Two compare, and importance is represented with 1~9 discrete integer, Judgement Matricies A.Its each scale implication is as shown in the table：
(4) calculated by judgment matrix by relative weighting of the comparison element for its corresponding upper strata criterion.
The present invention determines weight vectors W from feature vector method, i.e., the weight vectors W right sides are multiplied into weight ratio matrix A, and it is counted
Calculating formula is：
AW=λmaxW
Wherein λmaxFor the eigenvalue of maximum of judgment matrix, exist and uniquely.
(5) consistency check.Typically work as coincident indicator CR<Thinking when 0.1 can be by consistency detection, and it calculates public
Formula is：
Wherein CI is the calculated value of coincident indicator, and its calculation formula is：
RI is random index, relevant with judgment matrix A exponent number n, can pass through acquisition of tabling look-up.
Such as by consistency check, then (6) step is carried out, if repeating (3) step not if, checked whether there is significantly not
Reasonable item, if being corrected, proceeds；If still providing for (6) step without if, it is not necessary to it is required that necessarily passing through consistency check.
Specifically, significantly unreasonable message is judged that such as factor 1 is compared with factor 2, the weight of factor 1 by mathematical logic
Will be in factor 2, factor 2 is compared with factor 3, and factor 2 is important to factor 3, but factor 1, compared with factor 3, factor 3 is but important to
1, then it is considered as significantly unreasonable.
(6) comprehensive benefit value is calculated.Since the bottom, relative comprehensive benefit value is asked for as the following formula first, the like
Calculate the comprehensive benefit value of top numerical value, i.e. photovoltaic construction and environmental improvement joint development.
In-1=(In,1,In,2,…,In,m)W
In-1Represent the relative comprehensive benefit value of some element among (n-1)th layer, In,1,In,2,…,In,mRepresent the element pair
The value of m influence factor of the lower floor answered.I1As required comprehensive benefit value.
In order that the technical scheme of the application can clearly be understood by obtaining those skilled in the art, below with reference to tool
The embodiment of body describes the technical scheme of the application in detail with comparative example.
Simulation analysis are carried out by taking the large-sized photovoltaic power station of somewhere planning construction as an example herein.It plans that installed capacity is
50MW, takes up an area 100 hectares, exploitability environmental improvement area is 8.7 ten thousand hectares；It is expected that the kilowatt hour of annual electricity generating capacity 60000000.Light
Volt online price takes 1 yuan/kilowatt hour；Environmental benefit uses and has studied result of calculation, 0.0165 yuan/kilowatt hour.
(1) photovoltaic construction is determined with environmental improvement joint development influence factors of comprehensive benefit.
Method uses sensitivity analysis, to existing photovoltaic plant area, and existing environmental improvement area carries out historical data receipts
Collection, using sensitivity analysis, determines the main influence that photovoltaic construction is brought with environmental improvement on regional development, with reference to having studied
Economic benefit, environmental benefit and social benefit can be defined as.
(2) photovoltaic plant and each influence factor numerical value of environmental improvement comprehensive benefit are calculated.
According to basic data, photovoltaic plant construction and increasing newly that environmental improvement joint development is brought are calculated using the Lowry Model
Basic industry employment (photovoltaic plant and pumping irrigation station operation maintenance personnel, environmental improvement personnel), increases land area (basic industry land used newly
With residential land), newly-increased service trade employment is with increasing the basic industry output value (farming and animal husbandry etc. is taken in, i.e. indirect benefit) photovoltaic plant newly
Economic benefit and environmental benefit, computational methods clearly, can be corresponded to using net present value method and full life in existing research
Cycle energy consumption method, when not considering social benefit, its comprehensive benefit such as following table：
The photovoltaic plant year comprehensive benefit table of table 1
Social benefit, which should include photovoltaic construction and the employee that environmental improvement joint development is brought, to be increased, land use
The rising of value increases with associating the economic benefit of industry.
It is directed to parameter such as following table：
The parameter list of table 2
Result of calculation is as shown in the table：
The additional population statistical form of table 3
Table 4 increases all kinds of land area statistical forms newly
The photovoltaic plant of table 5 builds indirect economic effect table
It is not difficult to deduce, output value linear correlation of the change all with basic industry of each factor in indirect factor, therefore can be by
The social benefit of photovoltaic plant construction is expressed as the economic benefit of above-mentioned association industry.
(3) analysis photovoltaic construction and the logic of the economic benefit, environmental benefit and social benefit of environmental improvement joint development
Relation, determines that comprehensive benefit is evaluated as target zone, economic benefit, environmental benefit and social benefit are rule layer, each photovoltaic construction
It is solution layer with environmental improvement joint development scheme, the frame diagram for setting up analytic hierarchy process (AHP) is as shown in Figure 2.
(4) consider local development policies and expert opinion, economic benefit, environmental benefit compared two-by-two with social benefit,
Provide weight ratio matrix A.
(5) present invention determines weight vectors W using feature vector method, and W is gone out using equations in above-mentioned steps (4).Band
Enter real data, λ can be calculatedmax=3, W=(0.6885,0.6885,0.2280)T.Due to this method bottom line value to pass through
Value form of helping embodies, therefore is correspondence using economic benefit respective components as a reference value, after each component in W is normalized
The weight of influence factor.
(6) consistency check：CI=0, CR=0 are obtained according to formula in above-mentioned steps (6) finally, less than 0.1, by consistent
Property examine.
(7) obtained finally according to formula in above-mentioned steps (7)：
(8) the photovoltaic construction of table 6 and environmental improvement joint development comprehensive benefit table
It is can be found that, it is considered to which the value of comprehensive benefit is substantially amplified after social benefit, therefore, is assessed by contrast table 2 and table 6
Social benefit can not be ignored during the comprehensive benefit of photovoltaic plant.Meanwhile, the social benefit of photovoltaic plant is given full play to, is rationally promoted
The socio-economic development of photovoltaic plant region, is also the effective way of further development photovoltaic generation.Photovoltaic plant is built
There is significant comprehensive benefit advantage with environmental improvement joint development isotype, can alleviate environmental improvement problem while,
Lift the comprehensive benefit of photovoltaic plant.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. the comprehensive benefit assessment method of a kind of photovoltaic construction and environmental improvement joint development, it is characterized in that, comprise the following steps：
Step one：History data collection is carried out to existing photovoltaic plant area and existing environmental improvement area, using sensitivity point
Analysis method, determines photovoltaic construction and environmental improvement joint development influence factors of comprehensive benefit, including：Economic benefit, environmental benefit
With social benefit；
Step 2：Photovoltaic construction and each influence factor numerical value of environmental improvement joint development comprehensive benefit are calculated, Lao Ruimo is employed
Type carries out quantum chemical method to photovoltaic plant and the social benefit of environmental improvement joint development；
Step 3：Logical relation in analytical procedure one between each influence factor, Recurison order hierarchy knot is determined using analytic hierarchy process (AHP)
Structure, builds frame diagram, it is determined that each element of wherein top, intermediate layer and bottom；
Step 4：Each element to same level is compared two-by-two on the importance of a certain criterion in last layer, and construction is sentenced
Disconnected matrix；
Step 5：Calculated by judgment matrix using feature vector method by relative power of the comparison element for its corresponding upper strata criterion
Weight；
Step 6：Consistency check is carried out, if meeting consistency check, photovoltaic construction is calculated and environmental improvement joint development is comprehensive
Benefit is closed, otherwise, return to step four reconfigures each stratum's judgment matrix.
2. the comprehensive benefit assessment method of a kind of photovoltaic construction as claimed in claim 1 and environmental improvement joint development, it is special
Levying is, also the calculating including economic benefit uses net present value method in the step 2, and the calculating of environmental benefit uses full Life Cycle
Phase energy consumption method.
3. the comprehensive benefit assessment method of a kind of photovoltaic construction as claimed in claim 1 and environmental improvement joint development, it is special
Levying is, the Lowry Model is employed in the step 2 photovoltaic plant and the social benefit of environmental improvement joint development are quantified
Calculate, specifically include：
2-1) determine the soil gross area type expression of photovoltaic plant region；
2-2) determine influence expression formula of the population transfer to service trade employment number；
2-3) determine service trade floor space expression formula；
2-4) determine the direct population transfer number expression formula that photovoltaic construction, water conservancy construction and environmental improvement are brought；
2-5) consider photovoltaic plant and hydraulic engineering scale, with land area, provide boundary condition expression formula；
2-6) utilize 2-1) -2-4) in expression formula calculate population relocation number and newly-increased land area, and utilize 2-5) in express
Whether formula inspection items numerical value crosses the border, if there is Arbitrary Term to cross the border, this takes maximum according to actual conditions, other every bases
The Lowry Model is adjusted.
4. the comprehensive benefit assessment method of a kind of photovoltaic construction as claimed in claim 3 and environmental improvement joint development, it is special
Levying is, the step 2-1) in, it is specially：It is that generalized information system obtains related land used information by geographic position information system, including
Blank land area, basic industry land area, service trade land used and resident's industry land area, determine photovoltaic plant location
The soil gross area in domain, the soil gross area of photovoltaic plant region is above-mentioned area sum.
5. the comprehensive benefit assessment method of a kind of photovoltaic construction as claimed in claim 3 and environmental improvement joint development, it is special
Levying is, the step 2-2) in, it is specially：Population shifts the influence expression formula to service trade：
<mrow>
<msup>
<mi>E</mi>
<mi>k</mi>
</msup>
<mo>=</mo>
<munder>
<mo>&Sigma;</mo>
<mi>j</mi>
</munder>
<msubsup>
<mi>E</mi>
<mi>j</mi>
<mi>k</mi>
</msubsup>
<mo>=</mo>
<msup>
<mi>a</mi>
<mi>k</mi>
</msup>
<mo>&CenterDot;</mo>
<mi>N</mi>
</mrow>
In formula：EkKth class service trade employment number is represented, it is direct that N represents that photovoltaic construction, water conservancy construction and environmental improvement are brought
Population shifts number, akFor empirical value；Represent j subregion kth classes service trade employment number.
6. the comprehensive benefit assessment method of a kind of photovoltaic construction as claimed in claim 3 and environmental improvement joint development, it is special
Levying is, the step 2-3) in, it is specially：Determine service trade floor space expression formula：
<mrow>
<msubsup>
<mi>A</mi>
<mi>j</mi>
<mi>s</mi>
</msubsup>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>k</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>K</mi>
</munderover>
<msup>
<mi>e</mi>
<mi>k</mi>
</msup>
<msubsup>
<mi>E</mi>
<mi>j</mi>
<mi>k</mi>
</msubsup>
</mrow>
In formula：ekFor empirical value, unit service employment floor space is represented,Represent j subregion kth classes service trade employment number.
7. the comprehensive benefit assessment method of a kind of photovoltaic construction as claimed in claim 3 and environmental improvement joint development, it is special
Levying is, the step 2-4) in, expression formula is specially：
The influence that service trade is shifted to population：
<mrow>
<mi>N</mi>
<mo>=</mo>
<mi>f</mi>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>j</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>J</mi>
</munderover>
<msub>
<mi>&Sigma;</mi>
<mi>j</mi>
</msub>
</mrow>
In formula：F represents to bring resident's population with average each service trade employee that observation is obtained.
8. the comprehensive benefit assessment method of a kind of photovoltaic construction as claimed in claim 3 and environmental improvement joint development, it is special
Levying is, the step 2-5) in, boundary condition expression formula is specially：
<mfenced open = "{" close = "">
<mtable>
<mtr>
<mtd>
<msub>
<mi>S</mi>
<mi>V</mi>
</msub>
<mo>&GreaterEqual;</mo>
<mn>0</mn>
<mo>;</mo>
</mtd>
</mtr>
<mtr>
<mtd>
<msub>
<mi>Q</mi>
<mrow>
<mi>S</mi>
<mi>e</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>Q</mi>
<mi>A</mi>
</msub>
<mo>+</mo>
<msub>
<mi>Q</mi>
<mi>Re</mi>
</msub>
<mo>+</mo>
<msub>
<mi>Q</mi>
<mrow>
<mi>S</mi>
<mi>o</mi>
</mrow>
</msub>
<mo>&le;</mo>
<msub>
<mi>Q</mi>
<mrow>
<mi>M</mi>
<mi>a</mi>
<mi>x</mi>
</mrow>
</msub>
</mtd>
</mtr>
<mtr>
<mtd>
<mrow>
<msub>
<mi>W</mi>
<mrow>
<mi>S</mi>
<mi>e</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>W</mi>
<mi>A</mi>
</msub>
<mo>+</mo>
<msub>
<mi>W</mi>
<mrow>
<mi>R</mi>
<mi>e</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>W</mi>
<mrow>
<mi>W</mi>
<mi>a</mi>
</mrow>
</msub>
<mo>&le;</mo>
<msub>
<mi>W</mi>
<mrow>
<mi>M</mi>
<mi>a</mi>
<mi>x</mi>
</mrow>
</msub>
</mrow>
</mtd>
</mtr>
</mtable>
</mfenced>
In formula, SVRepresent blank land area；It is every in second formula to represent that service trade water total amount, agricultural water are total successively
Amount, urbanite water consumption total amount, photovoltaic plant water consumption and hydraulic engineering total supply；3rd formula items represent service trade successively
Total electricity load, environmental improvement total electricity load, resident's total electricity load, hydraulic engineering electric load and photovoltaic plant capacity.
9. the comprehensive benefit assessment method of a kind of photovoltaic construction as claimed in claim 1 and environmental improvement joint development, it is special
Levying is, in the step 5, is specially：
Weight vectors W is determined from feature vector method, i.e., the weight vectors W right sides are multiplied into judgment matrix A, its calculation formula is：
AW=λmaxW
Wherein λmaxFor the eigenvalue of maximum of judgment matrix, exist and uniquely.
10. the comprehensive benefit assessment method of a kind of photovoltaic construction as claimed in claim 1 and environmental improvement joint development, it is special
Levying is, in the step 6, as coincident indicator CR<Thinking when 0.1 can be by consistency detection, and its calculation formula is：
<mrow>
<mi>C</mi>
<mi>R</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mi>C</mi>
<mi>I</mi>
</mrow>
<mrow>
<mi>R</mi>
<mi>I</mi>
</mrow>
</mfrac>
</mrow>
Wherein CI is the calculated value of coincident indicator, and its calculation formula is：
<mrow>
<mi>C</mi>
<mi>I</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>&lambda;</mi>
<mrow>
<mi>m</mi>
<mi>a</mi>
<mi>x</mi>
</mrow>
</msub>
<mo>-</mo>
<mi>n</mi>
</mrow>
<mrow>
<mi>n</mi>
<mo>-</mo>
<mn>1</mn>
</mrow>
</mfrac>
</mrow>
RI is random index, relevant with judgment matrix A exponent number n, can pass through acquisition of tabling look-up；
In the step 6, comprehensive benefit value is calculated：Since the bottom, relative comprehensive benefit value is asked for as the following formula first, according to
It is secondary analogize calculate top numerical value, i.e. the comprehensive benefit value of photovoltaic construction and environmental improvement joint development：
In-1=(In,1,In,2,…,In,m)W
In-1Represent the relative comprehensive benefit value of some element among (n-1)th layer, In,1,In,2,…,In,mRepresent that the element is corresponding
The value of m influence factor of lower floor, I1As required comprehensive benefit value.
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