CN109784582B - Water distribution balancing method and system for regional economic department - Google Patents

Abstract

The invention discloses a water distribution balancing method and system for regional economic departments. The method comprises the following steps: acquiring supply and demand analysis data of each water main body; constructing a regional value objective function according to supply and demand analysis data; constructing a region water use fairness objective function according to supply and demand analysis data and a region value objective function; adopting a regional value objective function and a regional water use fairness objective function to construct a regional economic department water distribution balance optimization model; optimizing and solving a water distribution balance optimization model of a regional economic department by adopting a non-dominated sorting genetic algorithm with an elite strategy to obtain an optimal strategy; and realizing the space distribution of the water resource configuration result of the regional economic department according to the optimal strategy. The invention can optimize and coordinate the water consumption among industries, realize the water consumption balance among industries, reasonably allocate water quantity and provide important support for water management departments to reasonably arrange water consumption plans.

Description

Water distribution balancing method and system for regional economic department

Technical Field

The invention relates to the technical field of water resource allocation, in particular to a water distribution balancing method and system for regional economic departments.

Background

The reasonable arrangement of water for economic production plans is an important content of water resource allocation and also an important means for realizing coordinated development of regional economy and optimizing industrial structure. In the existing regional water resource planning/planning method, the allocation of water resources is generally performed according to the generalized priority or rule that domestic water is all satisfied, and industrial water is three-generation and building water > agricultural water. Currently, there are several problems: (1) after water is distributed by supply and demand, water shortage usually occurs only in agriculture, and water balance among various industries cannot be realized; (2) the water use economic value can be estimated only by adopting the proportional relation between the economic quantity and the water use quantity, and the real value of water as one of production elements in the production process of various industries cannot be reflected; (3) the conventional method generally carries out subjective weighting on various water quantity configuration targets to generate a single objective function, and solves the problem under given constraint conditions by adopting optimization methods based on specific water supply rules or linear programming and the like so as to obtain a set of optimization schemes. Therefore, the selection of the weight in the target function has subjective randomness, and in addition, the scheme is too single and is inconvenient for the comprehensive decision of a water management department; (4) the existing water resource planning/planning distribution method has long prediction time and lacks a short-term quantitative calculation method for roll correction between the years. Therefore, a method which can realize water utilization balance among various industries and has reasonable water quantity allocation is urgently needed.

Disclosure of Invention

Therefore, it is necessary to provide a water distribution balancing method and system for regional economic departments to achieve water utilization balancing and reasonable water quantity allocation among various industries, and provide important support for reasonable arrangement of water utilization plans for water management departments.

In order to achieve the purpose, the invention provides the following scheme:

a regional economic sector water distribution balancing method comprises the following steps:

acquiring supply and demand analysis data of each water main body; the supply and demand analysis data comprises the current annual total production value of each water main body, the resource input amount of each production department in each water main body, the product output amount of each production department in each water main body, the water supply amount of each production department in each water main body, the hydraulic engineering operation data, the ecological environment background data and the meteorological data;

constructing a regional value objective function according to the supply and demand analysis data;

constructing a region water use fairness objective function according to the supply and demand analysis data and the region value objective function;

adopting the region value objective function and the region water use fairness objective function to construct a region economic department water distribution balance optimization model;

optimizing and solving the regional economic department water distribution balance optimization model by adopting a non-dominated sorting genetic algorithm with an elite strategy to obtain an optimal strategy; the optimal strategy corresponds to the optimal regional value and the optimal regional water fairness;

and realizing the space distribution of the water resource configuration result of the regional economic department according to the optimal strategy.

Optionally, the constructing a regional value objective function according to the supply and demand analysis data specifically includes:

calculating the total input amount of resources of all production departments in each water main body according to the meteorological data, the input amount of resources of each production department in each water main body and the supply water amount of each industry in each water main body;

calculating the total energy input of each water body according to the total resource input amount;

calculating the energy value and currency ratio of each water body according to the total energy input of each water body and the total annual production value of each water body;

calculating the water resource energy value contribution rate of each production department in each water body by using the water supply amount of each production department in each water body, the water resource energy value conversion rate of each production department and the resource input amount of each production department in each water body;

calculating the total energy value of the products output by each production department in each water main body according to the product output of each production department in each water main body and the product energy value conversion rate of each production department;

calculating a single-unit water economic value parameter of each production department in each water body according to the water supply quantity of each production department in each water body, the water resource energy value contribution rate of each production department in each water body, the energy value currency ratio of each water body and the total energy value of products produced by each production department in each water body;

and constructing a regional value objective function according to the water supply quantity of each production department in each water body, the single-party water economic value parameters of each production department in each water body and the planned change water consumption of each production department in each water body in the next year.

Optionally, the regional value objective function specifically includes:

wherein n represents the number of water bodies, m represents the number of production departments in the water bodies, and Δ x_ijRepresents the planned change water consumption, lambda, of the jth production department in the ith water body in the next year_ijRepresents the economic value parameter, Q, of the single water of the jth production department in the ith water body_ijThe water consumption of the jth production department in the ith water body is shown.

Optionally, the constructing a region water fairness objective function according to the supply and demand analysis data and the region value objective function specifically includes:

obtaining a first matching degree function of each water main body according to the regional value objective function; the first matching degree function is a matching degree function of the economic value and the water consumption;

constructing a second matching degree function of each water main body according to the water supply and supply amount of each production department in each water main body and the ecological environment background data; the second matching degree function is a matching degree function of sewage discharge capacity and sewage receiving capacity;

according to the first matching degree function, carrying out ascending arrangement on the matching degree values of the economic water value and the water consumption of each water body to obtain a first sequence;

according to the second matching degree function, carrying out ascending arrangement on the matching degree values of the sewage discharge capacity and the sewage holding capacity of each water main body to obtain a second sequence;

constructing a first kini coefficient by adopting a trapezoidal area method according to the first sequence; the first damping coefficient is a damping coefficient of water use economic value and water use amount;

constructing a second kini coefficient by adopting a trapezoidal area method according to the second sequence; the second kindney coefficient is the kindney coefficient of sewage discharge capacity and sewage holding capacity;

and constructing a region water fairness objective function according to the first and second kini coefficients.

Optionally, the area water fairness objective function specifically includes:

wherein GEv-1-Gini_Ev，GD＝1-Gini_D，Gini_EvDenotes a first Gini coefficient, Gini_DRepresenting the second kini coefficient.

Optionally, the method for building a water distribution equilibrium optimization model of the regional economic department by using the regional value objective function and the regional water fairness objective function specifically includes:

wherein, Ev (Δ x)_ij) Indicating areaObjective function of merit, Ec (Δ x)_ij) Expressing the target function of the water fairness of the region, delta W expressing the planned increment of the water distribution of the regional economic department, Qa_ijRepresents the maximum water supply capacity Qa of the jth production department in the ith water body in the preset time period_ijDetermination by hydraulic engineering operating data, Qx_ijRepresents the predicted maximum water demand of the jth production department in the ith water body within the preset time period, η represents the industrial structure water adjustment parameter, η∈ (0, 1).

The invention also provides a water distribution balancing system for the regional economic department, which comprises:

the data acquisition module is used for acquiring supply and demand analysis data of each water main body; the supply and demand analysis data comprises the current annual total production value of each water main body, the resource input amount of each production department in each water main body, the product output amount of each production department in each water main body, the water supply amount of each production department in each water main body, the hydraulic engineering operation data, the ecological environment background data and the meteorological data;

the first objective function construction module is used for constructing a regional value objective function according to the supply and demand analysis data;

the second objective function construction module is used for constructing a region water use fairness objective function according to the supply and demand analysis data and the region value objective function;

the equilibrium model building module is used for building a water distribution equilibrium optimization model of the regional economic department by adopting the regional value objective function and the regional water use fairness objective function;

the optimization solving module is used for carrying out optimization solving on the regional economic department water distribution balance optimization model by adopting a non-dominated sorting genetic algorithm with an elite strategy to obtain an optimal strategy; the optimal strategy corresponds to the optimal regional value and the optimal regional water fairness;

and the space distribution module is used for realizing the space distribution of the water resource configuration result of the regional economic department according to the optimal strategy.

Optionally, the first objective function constructing module specifically includes:

the first calculation unit is used for calculating the total input amount of resources of all the production departments in each water main body according to the meteorological data, the input amount of resources of each production department in each water main body and the supply water amount of each industry in each water main body;

a second calculation unit for calculating the total energy input of each water body according to the total resource input;

a third calculating unit for calculating the ratio of the energy value and the currency of each water body according to the total input of the energy of each water body and the total annual production value of each water body;

a fourth calculating unit, configured to calculate a water resource energy contribution rate of each production department in each water body by using the water supply amount of each production department in each water body, the water resource energy conversion rate of each production department, and the resource input amount of each production department in each water body;

a fifth calculating unit, configured to calculate a total energy value of the products produced by each production department in each water main body according to the product output of each production department in each water main body and the energy value conversion rate of the products of each production department;

a sixth calculating unit, configured to calculate a single economic value parameter of each production department in each water main body according to the water supply amount of each production department in each water main body, the water resource energy contribution rate of each production department in each water main body, the energy currency ratio of each water main body, and the total energy of products produced by each production department in each water main body;

and the first function construction unit is used for constructing a regional value objective function according to the water supply quantity of each production department in each water body, the single-component water economic value parameter of each production department in each water body and the planned change water consumption of each production department in each water body in the next year.

Optionally, the second objective function constructing module specifically includes:

the first matching degree function establishing unit is used for obtaining a first matching degree function of each water main body according to the regional value objective function; the first matching degree function is a matching degree function of the economic value and the water consumption;

the second matching degree function establishing unit is used for constructing a second matching degree function of each water body according to the water supply and water quantity of each production department in each water body and the ecological environment background data; the second matching degree function is a matching degree function of sewage discharge capacity and sewage receiving capacity;

the first sequencing unit is used for carrying out ascending sequencing on the matching values of the water economic value and the water consumption of each water main body according to the first matching degree function to obtain a first sequence;

the second sequencing unit is used for carrying out ascending sequencing on the matching degree values of the sewage discharge capacity and the sewage receiving capacity of each water main body according to the second matching degree function to obtain a second sequence;

the first coefficient calculation unit is used for constructing a first kini coefficient by adopting a trapezoidal area method according to the first sequence; the first damping coefficient is a damping coefficient of water use economic value and water use amount;

the second coefficient calculation unit is used for constructing a second kini coefficient by adopting a trapezoidal area method according to the second sequence; the second kindney coefficient is the kindney coefficient of sewage discharge capacity and sewage holding capacity;

and the second function construction unit is used for constructing a region water fairness objective function according to the first and second kini coefficients.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a water distribution balancing method and system for regional economic departments. The method comprises the following steps: acquiring supply and demand analysis data of each water main body; constructing a regional value objective function according to supply and demand analysis data; constructing a region water use fairness objective function according to supply and demand analysis data and a region value objective function; adopting a regional value objective function and a regional water use fairness objective function to construct a regional economic department water distribution balance optimization model; optimizing and solving a water distribution balance optimization model of a regional economic department by adopting a non-dominated sorting genetic algorithm with an elite strategy to obtain an optimal strategy; and realizing the space distribution of the water resource configuration result of the regional economic department according to the optimal strategy. According to the invention, the regional value objective function and the regional water use fairness objective function are combined, the obtained regional economic department water distribution balance optimization model is constructed, the water consumption among industries can be optimized and coordinated, the water use balance among industries is realized, the water resource economic value is calculated more accurately, and important support is provided for the water management department to reasonably arrange a water use plan through reasonably allocating water quantity.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a flow chart of a water distribution balancing method for regional economic departments in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a water distribution balancing system for regional economic departments in an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Fig. 1 is a flowchart of a water distribution balancing method for regional economic departments in an embodiment of the present invention.

Referring to fig. 1, the water distribution balancing method for regional economy departments of the embodiment comprises the following steps:

step S1: and acquiring supply and demand analysis data of each water body.

The supply and demand analysis data comprises the current annual total production value of each water main body, the resource input amount of each production department in each water main body, the product output amount of each production department in each water main body, the water supply amount of each production department in each water main body, the hydraulic engineering operation data, the ecological environment background data and the meteorological data.

In this embodiment, the total annual production value of each water main body, the resource input amount of each production department in each water main body, and the product output amount of each production department in each water main body are derived from the provincial statistical yearbook, the water supply amount of each production department in each water main body is derived from the water resource bulletin, the hydraulic engineering operation data is derived from the water conservancy statistical report, and the ecological environment background data and the meteorological data are derived from the water environment quality bulletin.

Step S2: and constructing a regional value objective function according to the supply and demand analysis data.

The step S2 specifically includes:

1) and calculating the total input amount of resources of all the production departments in each water main body according to the meteorological data, the input amount of resources of each production department in each water main body and the supply water amount of each industry in each water main body.

The production departments comprise an agricultural production department, an industrial production department, a three-product production department and a construction industry production department. Wherein the agricultural production department invests resources including: renewable resources (solar energy, wind energy, agricultural water), non-renewable resources (topsoil loss), non-renewable industrial auxiliary energy (electricity, nitrogen fertilizer, phosphate fertilizer, potash fertilizer, compound fertilizer, pesticide, agricultural film, diesel oil, machinery), renewable organic functions (manpower, animal power, organic fertilizer, seeds); the resources invested by the industrial production department comprise: renewable resources (solar, wind, industrial water), non-renewable resources (raw coal and coal products, natural gas, crude oil, electricity, other fuels, raw materials, labor, fixed asset depreciation); the resources input by the three-yield and building industry production departments comprise: renewable resources (solar energy, wind energy, three-product and building water), non-renewable resources (building industry energy consumption, service industry energy consumption, steel, wood, cement, glass, aluminum, construction machinery, building industry workers, service industry workers, technical investment, service industry fixed asset investment and the like).

2) And calculating the total energy input of each water body according to the total resource input. Specifically, the method comprises the following steps:

various resource amounts (unit: g. j or m³A statistic of a mass) times the corresponding resource energy value conversion (sej/g, sej/J, or sej/m)³Sej full name solar joule, as an energy unit in the energy value analysis method) obtains the total input of energy of the water body i (total input of energy values for all production departments, unit: sej):

m represents the number of production departments in the water body, and m is 3 in the embodiment, and represents agriculture, industry, three-generation and construction industry respectively. The conversion rate of the energy values of various resources is a given parameter in an energy value analysis method, and the function is to convert the input amount of various resources into the unified measurement of solar energy. The energy analysis method is proposed by professor Odum of American famous ecology scientist, and is widely applied to quantitative research on aspects of human beings and nature, Environmental resources, social values, interrelations and the like in recent years, and is described in the monograph ' Environmental Accounting: energy and Environmental definition learning ' and the theoretical method and application of energy analysis of ecological economic values of water resources ' written by professor Wuzeing, national scholars.

3) And calculating the energy value and currency ratio of each water body according to the total energy input of each water body and the total annual production value of each water body. In particular, the method comprises the following steps of,

using E in step 2)_tol(i) Divided by the total production value GDP of the water subject in the current year_iThe ratio of the energy to the currency σ of the water body i can be obtained_iThe number of bits, in units of sej/yuan,

σ_i＝E_tol(i)/GDP_i。

4) and calculating the water resource energy value contribution rate of each production department in each water body by utilizing the water supply amount of each production department in each water body, the water resource energy value conversion rate of each production department and the resource input amount of each production department in each water body. In particular, the method comprises the following steps of,

the water consumption Q of the production department j of the water main body i in the water resource bulletin is adopted_ijConversion rate with water resource energy value tau (sej/m)³) (energy conversion parameter of water resource given by energy analysis method) divided by resource input E of the production department_in(i, j), calculating to obtain the water resource energy value contribution rate mu i of the production department j of the water main body i_jThe unit is,

μi_j＝Qi_j·τ/E_in(i,j)×100％。

5) and calculating the total energy value of the products produced by each production department in each water body according to the product output of each production department in each water body and the water resource energy value conversion rate of each production department. In particular, the method comprises the following steps of,

and obtaining the product output quantity of each production department of the main body i from the statistical yearbook. The agricultural sector yields include: forest products, plantation products, livestock products, fishing products; the industrial sector yields include: raw coal production, firepower generation capacity, steel and steel products, aluminum and aluminum products, gasoline, diesel oil, fuel oil, nonferrous metals, gas, cement, glass, plastics, ceramics, pesticides, nitrogenous fertilizers, phosphatic fertilizers, machine-made paper and paperboards, tap water, chemical preparations and detergents, food, textile products, wood processing and furniture manufacturing, mechanical products and transportation equipment manufacturing; the three-yield and the construction industry yield comprise: construction completion area and output in service areas. Respectively multiplying the product output of each production department by the energy value conversion rate of the product, and adding and summing item by item to obtain E_out(i,j)。

6) And calculating the economic value parameter of the single water of each production department in each water body according to the water supply quantity of each production department in each water body, the water resource energy value contribution rate of each production department in each water body, the energy value and currency ratio of each water body and the total energy value of products produced by each production department in each water body. In particular, the method comprises the following steps of,

the water resource energy value contribution rate mu i obtained by the calculation of the steps 3), 4) and 5)_jTotal energy value of the produced product E_out(i, j) water consumption Qi_jAnd the sum of energy and money ratio sigma_iSubstituting the formula to obtain a single water economic value parameter lambda of a water main body i production department j_ijThe parameters are used for measuring the value of water resources of different industries in different regions for production. Wherein,

7) and constructing a regional value objective function according to the water supply quantity of each production department in each water body, the single-party water economic value parameters of each production department in each water body and the planned change water consumption of each production department in each water body in the next year.

Set variable Δ x_ijChange water consumption for the plan of the next year of the jth department of production in the ith water body in units: m is³. Will be Δ x_ijBy substituting the following formula, the planned water consumption of industry can be increased or decreased based on the current annual industrial water consumption. The regional value objective function specifically includes:

wherein n represents the number of water bodies, m represents the number of production departments in the water bodies, and Δ x_ijRepresents the planned change water consumption, lambda, of the jth production department in the ith water body in the next year_ijRepresents the economic value parameter, Q, of the single water of the jth production department in the ith water body_ijIndicates the jth raw material in the ith water bodyWater consumption of the production department.

Step S3: and constructing a region water use fairness objective function according to the supply and demand analysis data and the region value objective function.

The step S3 specifically includes:

8) obtaining a first matching degree function of each water main body according to the regional value objective function; the first matching degree function is a matching degree function of the economic value and the water consumption. In particular, the method comprises the following steps of,

respectively calculating the value amount Ev of water resources generated by all production departments in the water main body i_i

Value amount generated by water resources in all production departments occupying main bodies of all water in region

The water consumption of all production departments of the water main body i accounts for the water consumption of all production departments of all water main bodies in the area, and the two are divided to construct a matching degree function of the economic value and the water consumption of the water

When in use

The time shows that the value contribution of the water using main body i is larger than the contribution of the water using main body i to the water using amount, and the economic water matching is higher by evaluating from the economic perspective; otherwise, the economic water matching is low.

9) Constructing a second matching degree function of each water main body according to the water supply and supply amount of each production department in each water main body and the ecological environment background data; and the second matching degree function is a matching degree function of the sewage discharge capacity and the sewage receiving capacity. In particular, the method comprises the following steps of,

respectively calculating the discharge D of certain pollutants in all industries in the water body i_iThe pollutant discharge amount of all production departments occupying all water bodies in the area

And the pollutant-receiving capacity H of the water body i for the pollutant_iOccupying the total pollutant carrying capacity

The ratio of the sewage discharge capacity to the pollutant holding capacity is divided to construct a matching degree function of the sewage discharge capacity and the pollutant holding capacity

Wherein,

α_ijthe current sewage discharge rate of a production department j of a water main body i is t/m³，α_ijThe water consumption is calculated according to the current annual water consumption of a water resource bulletin and the sewage discharge amount in a water environment bulletin; theta_ijThe concentration of pollutants in sewage discharged by a production department j of a water main body i is unit mg/L; ρ is a unit conversion coefficient. H_iThe water body pollutant carrying capacity of the water body i is as follows: t is obtained through water environment bulletin or regional water resource planning.

When in use

The time indicates that the contribution of the sewage discharge generated by the water body i is larger than the contribution of the water body i to the total pollutant carrying capacity of the area, and the environment matching is low in evaluation from the aspect of the bearing capacity of the water environment; otherwise, the environment matching is higher.

10) According to the first matching degree function, carrying out ascending arrangement on the matching degree values of the economic water value and the water consumption of each water body to obtain a first sequence; according to the second matching degree function, carrying out ascending arrangement on the matching degree values of the sewage discharge capacity and the sewage holding capacity of each water main body to obtain a second sequence; constructing a first kini coefficient by adopting a trapezoidal area method according to the first sequence; the first damping coefficient is a damping coefficient of water use economic value and water use amount; constructing a second kini coefficient by adopting a trapezoidal area method according to the second sequence; the second damping coefficient is a damping coefficient of sewage discharge capacity and sewage receiving capacity, and particularly,

according to the results obtained in step 8) and step 9)

And

respectively carrying out ascending arrangement on the water using main bodies i, and constructing the economic value and Gini coefficient of water using quantity of the area by adopting a trapezoidal area method according to the definition of the Gini coefficient in economics_EvAnd Gini coefficient of regional sewage discharge and sewage receiving capacity_DThe formula is as follows:

wherein, V_iIs the cumulative percentage of the amount of value produced by the water using the subject i to the total amount of area value, W_iThe total percentage of water consumption of a water main body i to the total water consumption of the region, Dl_iHl is the cumulative percentage of the total pollutant emission of the area, as measured by the pollutant emission of the water body i_iGini is the cumulative percentage of the soil-holding capacity of the water body i for that type of pollutant to the total soil-holding capacity of the area_Ev,Gini_D∈(0,1)。

11) And constructing a region water fairness objective function according to the first and second kini coefficients. In particular, the method comprises the following steps of,

calculating the Gini coefficient of the economic value and the water consumption of the regional water consumption by the step 10)_EvAnd Gini coefficient of regional sewage discharge and sewage receiving capacity_DIn terms of economics, it is generally considered that the fairness is better when the coefficient of the kini is less than 0.4. GEv is made to be 1-Gini according to the requirement_Ev，GD＝1-Gini_DIt is converted into a larger and more optimal index. According to the barrel principle, a geometric mean method is adopted to construct a region water fairness objective function Ec (delta x)_ij) After conversion, the region fairness is considered to be better when Ec is greater than or equal to 0.6, and the region water fairness objective function specifically comprises:

wherein GEv-1-Gini_Ev，GD＝1-Gini_D，Gini_EvDenotes a first Gini coefficient, Gini_DRepresenting the second kini coefficient.

Step S4: and adopting the region value objective function and the region water use fairness objective function to construct a water distribution balance optimization model of the region economic department. The regional economic department water distribution balance optimization model specifically comprises the following steps:

according to the water supply capacity of regional engineering and the recent requirements of various industries, the constraint conditions of the model are given,

wherein, Ev (Δ x)_ij) Representing the regional value objective function, Ec (Δ x)_ij) Target function representing regional water fairness, Δ W represents planned increment of regional economic department water distribution, annual plan from water management department, Qa_ijRepresents the maximum water supply capacity of the jth production department in the ith water body in a preset time period (recent time) in the unit: m is³Statistics of years by water conservancyReport and status quo hydraulic engineering survey, Qx_ijRepresents the predicted maximum water demand of the jth production department in the ith water body in a preset time period (near term): m is³η denotes an industrial structure water adjustment parameter η∈ (0,1), and η is generally set to 0.1, Δ x_ij≥-η·Q_ijIndicating the planned reduction Δ x of industrial water for the next planned year_ijAt most, the water consumption can not be higher than 10% of the actual water consumption in the last year.

Step S5: and adopting a non-dominated sorting genetic algorithm with an elite strategy to carry out optimization solution on the water distribution balance optimization model of the regional economic department to obtain an optimal strategy. The optimal strategy corresponds to the optimal regional value and the optimal regional water fairness. Because the target of the balanced optimization model comprises the comprehensive value and the balance degree of water resources, and is a multi-target optimization problem, the model is solved by adopting a non-dominated sorting genetic algorithm (NSGA-II method) with an elite strategy, and the NSGA-II method is a commonly used multi-target optimization search algorithm, and specifically comprises the following steps:

a) and initializing the parent population. Generating a newly added water amount plan delta x of each water use industry of each water use main body by adopting a pseudo-random method according to the newly added water amount delta W of the next annual industry plan_ij. All water supply strategies constitute complete decision information and serve as a single solution, namely, a decision scheme of the industrial water plan of the corresponding area of the solution. Randomly generating an initial generation population P according to the same method_t

(initial time t is 1), that is, a solution group is formed by N groups of different regional industry new water use plans.

b) And evaluating the adaptability of the solution population. According to the water supply strategy and the corresponding constraint conditions, the actual industrial water distribution quantity of the whole area can be obtained, and two objective functions of the maximum value of the industrial water consumption of each main body and the optimal fairness of the regional water consumption are respectively calculated. And (3) applying an NSGA-II method, carrying out non-dominated sorting on the solution groups according to the objective function value corresponding to each solution in the solution groups, and calculating the aggregation distance so as to evaluate the adaptability of the solution individuals (new water adding amount plan) in the solution groups.

c) And (5) solving the evolution of the population. Generating a progeny solution population according to genetic evolution operations such as selection, crossing and mutation of an NSGA-II method; merging the child solution population and the parent solution population, and generating a new generation solution population according to a new solution population generation method; evaluating the adaptability of the new generation solution group according to the method shown in the step b), carrying out the next evolution operation, repeating the steps until the convergence condition of the NSGA-II method is met, and taking the non-dominated solution set in the final solution group as the decision space of the management subject, wherein the decision space represents the optimal decision scheme set of the regional economic department water distribution plan aiming at two targets of value and fairness.

d) And (4) comprehensively selecting the non-inferior solution sets. Respectively calculating Ev of K non-inferior solution sets_k(Δx_ij) And Ec_k(Δx_ij) (K ═ 1, 2.. multidot.k), and normalized to Ev'_k(Δx_ij) And Ec'_k(Δx_ij) Respectively calculating the comprehensive score values E of the K schemes by adopting the following formula_k，

E_k＝ω₁Ev'_k(Δx_ij)+ω₂Ec'_k(Δx_ij)，

And the scheme with the largest score is taken as the recommended scheme under the weight. For the weight ω in the following equation₁、ω₂Make an adjustment (omega)₁＝0.5±0.025n，

ω₁+ω₂1, generally n is 10), which in turn can result in 10 sets of recommendations under different weight considerations. The optimal strategy described in step S5 is E_kEv 'corresponding to maximum time'_k(Δx_ij)、Ec'_k(Δx_ij)、ω₁、ω₂。

Step S6: and realizing the space distribution of the water resource configuration result of the regional economic department according to the optimal strategy. In particular, the method comprises the following steps of,

the visual, quantitative and decision tool for assisting the industrial planning water distribution scheme set can obtain the water use value quantity, the matching degree of the economic water use value and the water use quantity, and the matching degree of the sewage discharge quantity and the sewage receiving capacity of each scheme by adopting a region value objective function, a first kini coefficient and a calculation formula of the first kini coefficient according to 10 groups of optimal schemes; by means of GIS and other visualization means, water resource planning and planning can be comprehensively guided from the aspects of water use value quantity of various industries, regional water use fairness, pollution discharge fairness and the like.

The water distribution balancing method for the regional economic departments solves the problem that a quantitative analysis and calculation tool which is comprehensively considered is absent in the overall water utilization plan of the regional economic production at present.

The method has the following advantages: (1) the economic value of the water resource is calculated more accurately. The value quantity generated by water resource elements in different economic production departments can be stripped by applying an energy value analysis method. (2) The rolling decision is more suitable for the short-term dynamic adjustment of the water distribution plan of the regional economic department. The method can quickly realize the change and adjustment of the short-term annual water utilization plan by correcting the current annual input and output, economic output value, water utilization and drainage data in a rolling manner. (3) The analytical and computational results of the method are a series of optimization schemes, and the method can provide more comprehensive decision support for water management departments by being assisted with spatial graphic display tools such as GIS (geographic information system) and the like.

The method can obtain the following benefits: (1) the method realizes the maximum direct economic benefit of controlling the output of the sewage resource by the total water consumption by optimizing and coordinating the water consumption among industries. (2) Through the balanced allocation of the economic value of water resources, the water consumption and the matching degree of sewage discharge, the method has stronger practicability for the works of making an annual water utilization plan/plan, adjusting an industrial water utilization structure, arranging water-saving and pollution-control measures, strengthening the industry supporting force and the like of a local water management department; in addition, the method has certain indirect benefits on the balanced green development of regional economy.

The research idea and method of the water distribution balancing method for the regional economic department in the embodiment are as follows:

the regional economic department water distribution balancing method firstly needs to establish a water consumption economic value objective function and a regional water fairness objective function respectively based on the economic output value, input output, use and water discharge of the current year; then, according to the objective function, water supply increment constraint, water supply capacity constraint and the like, a regional balance water resource allocation optimization model is constructed, and an NSGA-II type algorithm is adopted for solving; and further calculating the economic value amount of the industrial water, the matching degree of the economic value amount of the industrial water and the water consumption, and the matching degree of the sewage discharge and the sewage receiving capacity based on the water supply scheme set obtained by model calculation, and performing space distribution by using a GIS.

(1) The regional value objective function calculation method comprises the following steps:

in the formula, Ev is regional water resource comprehensive value, unit: and (5) Yuan. Q_ijThe unit of the actual water consumption of an economic water department j of a water main body i in the current region is ten thousand yuan, wherein i ∈ (1,2,.. multidot.n) and j ∈ (1,2,.. multidot.m) directly derive from a water resource bulletin, and according to the subdivision degree of the economic production water consumption in the bulletin, m is generally 3 and respectively represents three industrial water departments of agriculture, industry, three-production and building.

(2) The water fairness objective function calculation method comprises the following steps:

in the formula, Ec is a regional fairness index, dimensionless, Ec ∈ (0,1), and is converted into E when E is less than or equal to 0.4 according to the judgment standard that Gini is a keni coefficient warning line_cWhen the area fairness is higher than or equal to 0.6, a geometric mean method is adopted according to the barrel principle. In order to make the value objective function and the fair objective function simultaneously have the larger value and the better type, GEv is made to be 1-Gini_Ev，GD＝1-Gini_D，Gini_Ev，Gini_DRespectively is the water use value and water consumption damping coefficient of the regional economic department and the regional sewage discharge capacity and sewage holding capacity damping coefficient, and the calculation formulas are respectively as follows:

wherein the sequence of the water using main bodies i is arranged in an ascending order according to the matching degree of the economic water value and the water using amount and the matching degree of the sewage discharge amount and the sewage receiving capacity.

The economic water value of the water using main body i and the water using quantity match degree function:

the water using main body i is a function of the sewage discharge-sewage receiving capacity matching degree:

(3) balanced optimization method for water distribution plan of regional economic department

Overall objective function:

constraint conditions are as follows:

Δx_ij≤Qa_ij

Δx_ij≥-η·Q_ij

Δx_ij≤Qx_ij。

the multi-objective optimization problem adopts a non-dominated sorting genetic algorithm (NSGA-II type algorithm) with an elite strategy, and the algorithm adds three improvement measures on the basis of NSGA, wherein ① adopts a new Pareto optimal solution set construction method to reduce the time complexity of Pareto optimal solution set construction, ② adds an optimal retention mechanism (elite strategy) to expand a sampling space and parent and child population combination③ maintaining diversity of solution group by replacing shared parameter with aggregation distance, and using it as one of comparison and selection criteria in selection operation and generation process of next generation group_ijIs not a bad solution set.

(4) Comprehensive evaluation of non-inferior solution set

Respectively calculating Ev of K non-inferior solution sets_k(Δx_ij) And Ec_k(Δx_ij) (K ═ 1, 2.. multidot.k), and normalized to Ev'_k(Δx_ij) And Ec'_k(Δx_ij) Respectively calculating the comprehensive score values E of the K schemes by adopting the following formula_k，

E_k＝ω₁Ev'_k(Δx_ij)+ω₂Ec'_k(Δx_ij)，

And the scheme with the largest score is taken as the recommended scheme under the weight. For the weight ω in the following equation₁、ω₂Make an adjustment (omega)₁＝0.5±0.025n，

ω₁+ω₂1, generally n is 10), which in turn can result in 10 sets of recommendations under different weight considerations.

(5) Imaging decision support

According to n groups of different recommended schemes, the water use economic value Ev of the water use subject corresponding to each group of schemes is calculated respectively_iMatching degree of water use value and water use amount

Degree of matching between sewage discharge capacity and sewage receiving capacity

Using GIS software to measure various indexes in regionAnd performing space distribution to provide reliable decision support for the next year planned water use arrangement of the water management department.

The invention also provides a water distribution balancing system for the regional economic department, and fig. 2 is a schematic structural diagram of the water distribution balancing system for the regional economic department in the embodiment of the invention.

Referring to fig. 2, the regional economy department water distribution equalization system of the embodiment includes:

a data acquisition module 201, configured to acquire supply and demand analysis data of each water main body; the supply and demand analysis data comprises the current annual total production value of each water main body, the resource input amount of each production department in each water main body, the product output amount of each production department in each water main body, the water supply amount of each production department in each water main body, the hydraulic engineering operation data, the ecological environment background data and the meteorological data.

A first objective function constructing module 202, configured to construct a regional value objective function according to the supply and demand analysis data.

And the second objective function constructing module 203 is configured to construct a region water fairness objective function according to the supply and demand analysis data and the region value objective function.

And the equilibrium model construction module 204 is used for constructing a water distribution equilibrium optimization model of the regional economic department by adopting the regional value objective function and the regional water use fairness objective function.

The optimization solving module 205 is configured to perform optimization solving on the regional economic department water distribution balance optimization model by using a non-dominated sorting genetic algorithm with elite strategy to obtain an optimal strategy; the optimal strategy corresponds to the optimal regional value and the optimal regional water fairness.

And the space distribution module 206 is configured to implement space distribution of the water resource configuration result of the regional economic department according to the optimal strategy.

As an optional implementation manner, the first objective function constructing module 202 specifically includes:

the first calculation unit is used for calculating the total input amount of resources of all the production departments in each water main body according to the meteorological data, the input amount of resources of each production department in each water main body and the supply water amount of each industry in each water main body;

a second calculation unit for calculating the total energy input of each water body according to the total resource input;

a third calculating unit for calculating the ratio of the energy value and the currency of each water body according to the total input of the energy of each water body and the total annual production value of each water body;

a fourth calculating unit, configured to calculate a water resource energy contribution rate of each production department in each water body by using the water supply amount of each production department in each water body, the water resource energy conversion rate of each production department, and the resource input amount of each production department in each water body;

a fifth calculating unit, configured to calculate a total energy value of the products produced by each production department in each water main body according to the product output of each production department in each water main body and the energy value conversion rate of the products of each production department;

a sixth calculating unit, configured to calculate a single economic value parameter of each production department in each water main body according to the water supply amount of each production department in each water main body, the water resource energy contribution rate of each production department in each water main body, the energy currency ratio of each water main body, and the total energy of products produced by each production department in each water main body;

and the first function construction unit is used for constructing a regional value objective function according to the water supply quantity of each production department in each water body, the single-component water economic value parameter of each production department in each water body and the planned change water consumption of each production department in each water body in the next year.

As an optional implementation manner, the second objective function constructing module 203 specifically includes:

the first matching degree function establishing unit is used for obtaining a first matching degree function of each water main body according to the regional value objective function; the first matching degree function is a matching degree function of the economic value and the water consumption;

the second matching degree function establishing unit is used for constructing a second matching degree function of each water body according to the water supply and water quantity of each production department in each water body and the ecological environment background data; the second matching degree function is a matching degree function of sewage discharge capacity and sewage receiving capacity;

the first sequencing unit is used for carrying out ascending sequencing on the matching values of the water economic value and the water consumption of each water main body according to the first matching degree function to obtain a first sequence;

the second sequencing unit is used for carrying out ascending sequencing on the matching degree values of the sewage discharge capacity and the sewage receiving capacity of each water main body according to the second matching degree function to obtain a second sequence;

the first coefficient calculation unit is used for constructing a first kini coefficient by adopting a trapezoidal area method according to the first sequence; the first damping coefficient is a damping coefficient of water use economic value and water use amount;

the second coefficient calculation unit is used for constructing a second kini coefficient by adopting a trapezoidal area method according to the second sequence; the second kindney coefficient is the kindney coefficient of sewage discharge capacity and sewage holding capacity;

and the second function construction unit is used for constructing a region water fairness objective function according to the first and second kini coefficients.

The regional economy department water distribution balancing system in the embodiment is provided with the first objective function building module, the second objective function building module and the balancing model building module, the regional value objective function is combined with the regional water use fairness objective function, the obtained regional economy department water distribution balancing optimization model is built, water consumption among industries can be optimized and coordinated, water balance among industries is achieved, the economic value of water resources is calculated accurately, and important support is provided for a water management department to reasonably arrange a water use plan through reasonable water quantity allocation

For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.

The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (7)

1. A regional economic department water distribution balancing method is characterized by comprising the following steps:

acquiring supply and demand analysis data of each water main body; the supply and demand analysis data comprises the current annual total production value of each water main body, the resource input amount of each production department in each water main body, the product output amount of each production department in each water main body, the water supply amount of each production department in each water main body, the hydraulic engineering operation data, the ecological environment background data and the meteorological data;

constructing a regional value objective function according to the supply and demand analysis data;

constructing a region water use fairness objective function according to the supply and demand analysis data and the region value objective function;

adopting the region value objective function and the region water use fairness objective function to construct a region economic department water distribution balance optimization model;

optimizing and solving the regional economic department water distribution balance optimization model by adopting a non-dominated sorting genetic algorithm with an elite strategy to obtain an optimal strategy; the optimal strategy corresponds to the optimal regional value and the optimal regional water fairness;

according to the optimal strategy, realizing the space distribution of the water resource configuration result of the regional economic department;

the method for constructing the region water use fairness objective function according to the supply and demand analysis data and the region value objective function specifically comprises the following steps:

obtaining a first matching degree function of each water main body according to the regional value objective function; the first matching degree function is a matching degree function of the economic value and the water consumption;

constructing a second matching degree function of each water main body according to the water supply and supply amount of each production department in each water main body and the ecological environment background data; the second matching degree function is a matching degree function of sewage discharge capacity and sewage receiving capacity;

according to the first matching degree function, carrying out ascending arrangement on the matching degree values of the economic water value and the water consumption of each water body to obtain a first sequence;

according to the second matching degree function, carrying out ascending arrangement on the matching degree values of the sewage discharge capacity and the sewage holding capacity of each water main body to obtain a second sequence;

constructing a first kini coefficient by adopting a trapezoidal area method according to the first sequence; the first damping coefficient is a damping coefficient of water use economic value and water use amount;

constructing a second kini coefficient by adopting a trapezoidal area method according to the second sequence; the second kindney coefficient is the kindney coefficient of sewage discharge capacity and sewage holding capacity;

and constructing a region water fairness objective function according to the first and second kini coefficients.

2. The method for water distribution balance of regional economic departments according to claim 1, wherein the constructing a regional value objective function according to the supply and demand analysis data specifically comprises:

calculating the total input amount of resources of all production departments in each water main body according to the meteorological data, the input amount of resources of each production department in each water main body and the supply water amount of each industry in each water main body;

calculating the total energy input of each water body according to the total resource input amount;

calculating the energy value and currency ratio of each water body according to the total energy input of each water body and the total annual production value of each water body;

calculating the water resource energy value contribution rate of each production department in each water body by using the water supply amount of each production department in each water body, the water resource energy value conversion rate of each production department and the resource input amount of each production department in each water body;

calculating the total energy value of the products output by each production department in each water main body according to the product output of each production department in each water main body and the energy value conversion rate of the products of each production department;

calculating a single-unit water economic value parameter of each production department in each water body according to the water supply quantity of each production department in each water body, the water resource energy value contribution rate of each production department in each water body, the energy value currency ratio of each water body and the total energy value of products produced by each production department in each water body;

and constructing a regional value objective function according to the water supply quantity of each production department in each water body, the single-party water economic value parameters of each production department in each water body and the planned change water consumption of each production department in each water body in the next year.

3. The regional economic sector water distribution balancing method according to claim 2, wherein the regional value objective function is specifically:

wherein n represents the number of water bodies, m represents the number of production departments in the water bodies, and Δ x_ijRepresents the planned change water consumption, lambda, of the jth production department in the ith water body in the next year_ijRepresents the economic value parameter, Q, of the single water of the jth production department in the ith water body_ijThe water consumption of the jth production department in the ith water body is shown.

4. The regional economic department water distribution balancing method according to claim 1, wherein the regional water use fairness objective function is specifically:

wherein GEv-1-Gini_Ev，GD＝1-Gini_D，Gini_EvDenotes a first Gini coefficient, Gini_DRepresenting the second kini coefficient.

5. The regional economic department water distribution balancing method according to claim 4, wherein the regional economic department water distribution balancing optimization model is constructed by adopting the regional value objective function and the regional water use fairness objective function, and specifically comprises the following steps:

wherein, Ev (Δ x)_ij) Representing the regional value objective function, Ec (Δ x)_ij) Expressing the target function of the water fairness of the region, delta W expressing the planned increment of the water distribution of the regional economic department, Qa_ijRepresents the maximum water supply capacity Qa of the jth production department in the ith water body in the preset time period_ijDetermination by hydraulic engineering operating data, Qx_ijRepresents the predicted maximum water demand of the jth production department in the ith water body within the preset time period, η represents the industrial structure water adjustment parameter, η∈ (0, 1).

6. A regional economy department water distribution equalization system, comprising:

the data acquisition module is used for acquiring supply and demand analysis data of each water main body; the supply and demand analysis data comprises the current annual total production value of each water main body, the resource input amount of each production department in each water main body, the product output amount of each production department in each water main body, the water supply amount of each production department in each water main body, the hydraulic engineering operation data, the ecological environment background data and the meteorological data;

the first objective function construction module is used for constructing a regional value objective function according to the supply and demand analysis data;

the second objective function construction module is used for constructing a region water use fairness objective function according to the supply and demand analysis data and the region value objective function;

the equilibrium model building module is used for building a water distribution equilibrium optimization model of the regional economic department by adopting the regional value objective function and the regional water use fairness objective function;

the optimization solving module is used for carrying out optimization solving on the regional economic department water distribution balance optimization model by adopting a non-dominated sorting genetic algorithm with an elite strategy to obtain an optimal strategy; the optimal strategy corresponds to the optimal regional value and the optimal regional water fairness;

the space distribution module is used for realizing the space distribution of water distribution of the regional economic department according to the optimal strategy;

the second objective function constructing module specifically includes:

the first matching degree function establishing unit is used for obtaining a first matching degree function of each water main body according to the regional value objective function; the first matching degree function is a matching degree function of the economic value and the water consumption;

the second matching degree function establishing unit is used for constructing a second matching degree function of each water body according to the water supply and water quantity of each production department in each water body and the ecological environment background data; the second matching degree function is a matching degree function of sewage discharge capacity and sewage receiving capacity;

the first sequencing unit is used for carrying out ascending sequencing on the matching values of the water economic value and the water consumption of each water main body according to the first matching degree function to obtain a first sequence;

the second sequencing unit is used for carrying out ascending sequencing on the matching degree values of the sewage discharge capacity and the sewage receiving capacity of each water main body according to the second matching degree function to obtain a second sequence;

the first coefficient calculation unit is used for constructing a first kini coefficient by adopting a trapezoidal area method according to the first sequence; the first damping coefficient is a damping coefficient of water use economic value and water use amount;

the second coefficient calculation unit is used for constructing a second kini coefficient by adopting a trapezoidal area method according to the second sequence; the second kindney coefficient is the kindney coefficient of sewage discharge capacity and sewage holding capacity;

and the second function construction unit is used for constructing a region water fairness objective function according to the first and second kini coefficients.

7. The water distribution balance system for the regional economic sector according to claim 6, wherein the first objective function constructing module specifically comprises:

the first calculation unit is used for calculating the total input amount of resources of all the production departments in each water main body according to the meteorological data, the input amount of resources of each production department in each water main body and the supply water amount of each industry in each water main body;

a second calculation unit for calculating the total energy input of each water body according to the total resource input;

a third calculating unit for calculating the ratio of the energy value and the currency of each water body according to the total input of the energy of each water body and the total annual production value of each water body;

a fourth calculating unit, configured to calculate a water resource energy contribution rate of each production department in each water body by using the water supply amount of each production department in each water body, the water resource energy conversion rate of each production department, and the resource input amount of each production department in each water body;

a fifth calculating unit, configured to calculate a total energy value of the products produced by each production department in each water main body according to the product output of each production department in each water main body and the energy value conversion rate of the products of each production department;

a sixth calculating unit, configured to calculate a single economic value parameter of each production department in each water main body according to the water supply amount of each production department in each water main body, the water resource energy contribution rate of each production department in each water main body, the energy currency ratio of each water main body, and the total energy of products produced by each production department in each water main body;

and the first function construction unit is used for constructing a regional value objective function according to the water supply quantity of each production department in each water body, the single-component water economic value parameter of each production department in each water body and the planned change water consumption of each production department in each water body in the next year.

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