CN115271437B - Water resource configuration method and system based on multi-decision-making main body - Google Patents
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Abstract
The invention provides a water resource configuration method and a water resource configuration system based on a multi-decision-making main body, which belong to the technical field of water resource configuration and comprise the following steps: determining a decision main body participating in water resource allocation; generalizing water supply rules of water sources and water plant projects at a water supply end, and taking parameters of the water supply rules as decision variables; obtaining an initial water distribution result according to the initial values of the water resource quantity, the water demand quantity and the decision variables; calculating decision right values of the water resource allocation decision-making main bodies for the water allocation scheme from the perspective of multi-main-body decision making, and evaluating the stability values of the water resource allocation scheme; updating the water supply rule by using a particle swarm algorithm by taking the stability evaluation value as an objective function and the water supply rule as a decision variable; and judging whether the circulation finishing condition is met, and outputting a water supply rule and a water quantity distribution result according to a judgment result to serve as an optimal water resource distribution scheme. The invention solves the problems that a water resource configuration scheme is disjointed from actual management and is difficult to land.
Description
Technical Field
The invention belongs to the technical field of water resource allocation, and particularly relates to a water resource allocation method and system based on a multi-decision-making main body.
Background
The water resource in China is unevenly distributed in time and space, is not matched with population, productivity, land and other layouts, the requirements of reasonable allocation and strict management of the water resource are stronger, and the requirements of high-quality development and ecological environment improvement of the economic society can be effectively met only by the strict guarantee of the time and space reasonable allocation and management system of the water resource. Under the requirements of a new water control idea and fine water resource management, the related range of water resource allocation is continuously expanded, and the interest bodies participating in decision making are gradually increased. Meanwhile, the actual water resource configuration scheme needs to be implemented through a specific management link, and a regional manager, a water user and an engineering scheduling unit which participate in the water resource configuration are all important participants in the configuration process, so that the preference and the decision of the regional manager, the water user and the engineering scheduling unit cannot be ignored. Therefore, the preference and the behavior rule of a water resource allocation decision maker in each link need to be fully considered, and the macroscopic water resource allocation model is combined with the multi-level and multi-target management requirements, so that the balanced allocation of the water resource can be realized.
In the prior art, a lumped modeling-based water resource configuration model is mainly used for supporting the work of planning and macro decision-making levels, considering preference and overall targets of regional decision-makers, although research on multi-target water resource configuration is carried out, related targets are mainly macro decision-making targets, the preference of management decision-makers in a water resource allocation process is not considered enough, and the expression of willingness of related benefit subjects is lost. Meanwhile, the description of the water supply rule for water resource allocation is also only in consideration of the characteristics of the water resource project, and the preference of users and regional decision makers is not considered. The disadvantages are as follows: the water resource allocation scheme only meets the preference of regional decision makers, and the preference of the management decision maker in the water resource allocation process is not considered, so that the water resource allocation scheme is difficult to fall in the actual water resource management work.
In the prior art, only preliminary research is carried out on a water resource configuration method based on multi-subject modeling, the existing research mainly considers the relationship between water users and regional decision subjects, the problem of water resource distribution is solved by adopting a decentralized optimization mode, and the influence of the water supply end engineering management decision subjects on water using behaviors is not uniformly considered. However, the actual water resource allocation process should include participation of multiple regional units, multiple types of water consumers, and multiple water sources, and the decision preference and the behavior rule of the water resource allocation main body need to be reflected at the water supply end and the water using end at the same time. Most of researches on the water supply rule of a water supply end are not considered in the multi-body modeling-based water resource allocation method, only a small amount of coupled water supply systems are researched, and only the annual average available water supply is taken as a boundary condition for static calculation, or only water balance simulation calculation is carried out on reservoir engineering, and the water supply rules of various water sources and water plant engineering are not generalized. The disadvantages are as follows:
(1) The method has the advantages that the method is not enough to consider the decision-making main body of the engineering management, does not generalize the water supply rules of a plurality of water sources and water plant engineering, and cannot meet the requirement of fine management of water resources.
(2) The calculation method mainly adopts the construction of penalty functions, lacks the consideration of games among multiple decision-making main bodies, and cannot ensure that the generated water resource allocation scheme can be approved by water resource allocation management decision makers in all links.
Disclosure of Invention
Aiming at the defects in the prior art, the water resource allocation method and the water resource allocation system based on the multi-decision-making main body solve the problems that a water resource allocation scheme is disjointed with actual management and is difficult to fall to the ground.
In order to achieve the purpose, the invention adopts the technical scheme that:
the scheme provides a water resource allocation method based on a multi-decision-making main body, which comprises the following steps:
the method comprises the following steps of S1, determining a decision main body participating in water resource configuration according to a topological relation of a water resource configuration system, wherein the decision main body comprises a regional decision main body, an engineering management decision main body and a water user decision main body;
s2, generalizing water supply rules of water sources and water plant projects of a water supply end according to the preference and the management requirement of each decision-making main body, and taking parameters of the water supply rules as decision variables;
s3, obtaining a water distribution result according to the water resource amount, the water demand amount and the initial values of the decision variables;
s4, evaluating decision right values of the water resource allocation decision main bodies for the water allocation scheme from the perspective of multi-main-body decision according to water allocation results, and calculating to obtain stability evaluation values of the water resource allocation scheme;
s5, updating the water supply rule by using the particle swarm algorithm by taking the stability evaluation value as a target function and the water supply rule as a decision variable;
and S6, judging whether the circulation finishing condition is met, if so, outputting a water supply rule and a water quantity distribution result, and using the water supply rule and the water quantity distribution result as an optimal water resource distribution scheme, otherwise, recalculating water quantity distribution according to the updated water supply rule parameters, and returning to the step S4.
The beneficial effects of the invention are: the invention fully considers the preference and behavior rule of each decision-making main body in the water resource allocation process, combines the topological relation of the water resource allocation system and the actual water quantity allocation management work, comprehensively considers the preferences of the water resource allocation system engineering management decision-making main body, the water user decision-making main body and the regional decision-making main body, combines different preferences of the water resource allocation main body with the water source characteristics at the water supply end and converts the different preferences into a simple mathematical expression formula, and establishes the water supply rule of the superposition of the multilayer rules of different water sources; the acceptable degree of each water resource allocation management decision-making main body to the water amount allocation scheme is evaluated from the perspective of multi-main-body decision-making at the water using end, and the acceptable degree is used as an objective function of the overall optimization of a water resource allocation system to guide and optimize the water supply rules of each water source at the water supplying end and the water plant engineering, so that the combination of a macroscopic water resource allocation model and the management requirements of multiple levels and multiple targets is realized, the macroscopic decision-making preference is met, the water amount allocation work of a microscopic level can be guided, and a foundation is provided for approaching the actual engineering operation and water amount allocation simulation.
Further, the step S2 of generalizing the water supply rules of each water source of the water supply end and the water plant project includes:
generalization of reservoir engineering water supply rules:
WRSre gijt ＝Min(WSre gijt ,DRE gijt ,Ccare gijt )
WSre gijt ＝θSre gijt ·WSrek gjt
DRE gijt ＝μre gijt ·WDe ijt
wherein, WRSre gijt The water supply quantity of j customers (unit is m) on the calculation unit of the j customers of the g reservoir in the t period 3 )，WSre gijt Representing the water supply available to j customers (in m) of the g reservoir in the t period to i calculation unit 3 )，DRE gijt Representing the water supply demand (in m) of j water users on the corresponding i calculation unit of the g reservoir in the time period t 3 )，Ccare gijt The overflow capacity of a water supply channel of j customers (unit is m) of the g reservoir to the i computing unit in the t period 3 ) Min (·) denotes a minimization operation, θ Sre gijt The water division ratio of j water users on the calculation unit of the time interval i of the g reservoir is shown, and mu re gijt Representing that the water supply of j users on the corresponding i computing unit of the g reservoir meets the proportion WDe in the t period ijt Represents the water demand (unit is m) of j users in the time period t on the i computing unit 3 )，WSrek gjt Represents the amount of water available (in m) of the g reservoir to the corresponding water user j in the t period 3 )，WX gt Representing the water storage capacity of the g reservoir in the t period (unit is m) 3 )，VL gjt The storage capacity (unit is m) of the dispatching line control of the corresponding water user j of the g reservoir in the t period 3 )；
Generalizing the water supply rule of the underground water source:
wherein, WSGro ijt Represents the water supply amount of j water consumers (unit is m) of the groundwater to the i computing unit in the t period 3 )，WSGro1 ijt Rigid water supply (unit is m) of j water users to i calculation unit in t period of groundwater in first stage 3 )，γgro2 ijt The water supply coefficient of j water users on the calculation unit of i in the second stage groundwater t period is shown, WSGroZ shows groundwater supplyControl index of total amount (unit is m) 3 )，γgro3 ijt The water supply coefficient of j water users on the calculation unit of i in the t time period of the groundwater in the third stage is shown, and KGro shows the adjustment coefficient of the total groundwater supply amount;
generalization of water supply rule of external water supply:
wherein WSD ijt The water supply quantity (in m) of j water users on the calculation unit of i during t time period of externally-adjusted water 3 )，
The water diversion proportion coefficient, WSD1, of j water users on the calculation unit of i in the time period t in the first stage of external water diversion t Indicating the basic water supply (in m) of the tempered water during the time t 3 )，ωD2 ijt The water supply coefficient of j water consumers on the calculation unit to i in the time period t in the second stage of external water regulation is represented, and WSDZ represents the total amount control index (in m) of external water regulation and water supply 3 )；
Generalized reclaimed water supply rules:
wherein WSRec hijt The water supply quantity (in m) of j water users on the calculation unit of i in the t period of h regeneration water plant 3 )，
The water division ratio, wse, of j water consumers on the calculation unit from t time interval to i of the h regeneration water plant ijt-1 Represents the sewage quantity (in m) generated by j customers on the calculation unit of the t-1 time interval i 3 )，/>
Represents the proportion of the amount of the sewage generated by j water users on the calculation unit of the t time period collection i of the h regeneration water plant, and then>
The sewage treatment rate of the regeneration water plant is shown, device for selecting or keeping>
Represents the sewage loss rate of the h regenerating water plant,. Sup.,>
representing the reuse rate of the reclaimed water plant;
generalizing the water supply rule of the water plant engineering:
WSpl oijt ＝Min(WSplpun oijt ,Dpl oijt ,Ccapl oijt )
WSplpun oijt ＝θpl oijt ·Qplpun ot
Dpl oijt ＝μpl oijt ·WDe ijt
wherein, WSpl oijt Represents the water supply amount of j water users (unit is m) of the o water plant to the i calculation unit in the t period 3 )，WSplpun oijt The water dividable quantity (unit is m) of j water users on the calculation unit of the I direction of the o water plant in the t period 3 )，Dpl oijt The water supply requirement (in m) of j water users on the corresponding i calculation unit of the o water plant in the time period t is represented 3 )，Ccapl oijt The overflow capacity of a water supply channel of a j water user on a calculation unit from an o water plant to an i in a t period (the unit is m) 3 )，θpl oijt Represents the water diversion ratio of j water users on the calculation unit of the o water plant from t time interval to i, qplpun ot Represents the amount of available purified water (unit is m) of the o-water plant in the t period 3 )，μpl oijt Representing that the water supply of j water users on the corresponding i calculation unit of the o water plant in the t time period meets the proportion, WDe ijt Represents the water demand (unit is m) of j users in t period on i calculation unit 3 )。
The beneficial effects of the further scheme are as follows: the invention summarizes the water supply rules of all water sources and water plant projects at the water supply end, considers the preference and the management requirement of a plurality of water resource configuration main bodies on a microscopic level, and ensures that the generalized water supply rules approach the actual project operation.
Still further, the step S4 includes the steps of:
s401, respectively calculating preference values of all water resource allocation decision-making main bodies according to water quantity allocation results;
s402, respectively calculating the decision right value of each water resource allocation decision main body to the water allocation scheme according to the preference value;
and S403, calculating the average right distribution degree of each decision main body according to the decision right value, and taking the average right distribution degree of each decision main body as a stability evaluation value of the water resource allocation scheme.
The beneficial effects of the above further scheme are: the invention guides the optimization solution of the water supply rule by the decision results of a plurality of water resource allocation decision-making main bodies, can ensure that the water allocation scheme obtains the approval of management decision makers of all links of water resource allocation, and realizes the coupling of a macroscopic water resource allocation method and the management requirements of multiple levels and multiple targets.
Still further, the decision preference value of each water resource allocation decision main body includes:
decision preference value of regional decision body in water resource configuration:
wherein, eq i Represents the water distribution space balance degree, PH, of the ith computing unit i Represents an industry fractional share, PW, of the ith computing unit i GDP representing the water supply ratio of the i-th computing unit i GDP (unit is element) representing the ith calculation unit, W i Indicates the amount of water supply (in m) of the ith calculation unit 3 )，∑GDP i GDP (in units of units), sigma W representing the entire region i Representing the total supply of the whole areaAmount of water (unit is m) 3 )；
Decision preference value of project management decision main body in water resource configuration:
wherein Encv l The operability index of the project l is represented,
represents the average value (unit is m) of the water supply process of the project 3 )，σ l Standard deviation (in m) representing water supply process of project 3 )，Ws lt Represents the water supply amount (in m) of project l in the period t 3 ) T represents the total period;
decision preference value of water user decision main body in water resource configuration:
therein, SAD j Represents the Water demand satisfaction, WDe, of the user j j Represents the water demand (in m) of the user j 3 )，WS j Represents the actual water supply (in m) for household j 3 )。
The beneficial effects of the further scheme are as follows: the invention takes the macro preference of each decision main body as an index value, and can ensure that the calculation result conforms to the macro preference of each decision main body.
Still further, the expression of the decision entitlement size is as follows:
wherein, a k Represents the decision right value, w of the water resource decision main body k to the water distribution scheme k Represents the weight coefficient of the water resource decision main body k,
represents the ideal preference value, f, of the water resource decision body k k The actual preference value of the water resource decision main body k in the water quantity distribution scheme is shown, and m represents the total number of the water resource decision main bodies.
The beneficial effects of the further scheme are as follows: the method can dynamically quantize the decision right of each decision main body to the scheme according to the water distribution result.
The invention also provides a water resource configuration system based on the multi-decision-making main body, which comprises the following steps:
the system comprises a first calculation module, a second calculation module and a third calculation module, wherein the first calculation module is used for determining a decision main body participating in water resource configuration according to a topological relation of a water resource configuration system, and the decision main body comprises a regional decision main body, an engineering management decision main body and a water user decision main body;
the second calculation module is used for generalizing the water supply rules of each water source and water plant engineering at the water supply end according to the preference and the management requirement of each decision-making main body, and taking the parameters of the water supply rules as decision variables;
the third calculation module is used for obtaining an initial water distribution result according to the initial values of the water resource quantity, the water demand quantity and the decision variables;
the fourth calculation module is used for evaluating decision right values of the water resource allocation decision main bodies for the water allocation schemes from the perspective of multi-main-body decision according to the water allocation results, and calculating stability evaluation values of the water resource allocation schemes;
the fifth calculation module is used for updating the water supply rule by taking the stability evaluation value as a target function and the water supply rule as a decision variable and utilizing a particle swarm algorithm;
and the sixth calculation module is used for judging whether the circulation ending condition is met, outputting the water supply rule and the water quantity distribution result if the circulation ending condition is met, and taking the water supply rule and the water quantity distribution result as an optimal water resource distribution scheme, otherwise, recalculating the water quantity distribution according to the updated water supply rule parameters and returning to the fourth calculation module.
The invention has the beneficial effects that: the method is characterized in that the water supply rule of the water supply end is generalized based on the preference and the management requirement of a plurality of water resource configuration decision-making bodies, the stability of a water quantity distribution scheme is evaluated based on the plurality of water resource configuration decision-making bodies, the particle swarm algorithm is utilized, the scheme stability is taken as a target function, the water supply rule of the water supply end is taken as a decision variable, the final water supply rule and the water resource configuration scheme are determined through iterative calculation, the recognition of management decision makers in all links of water resource configuration can be obtained in the final scheme, the coupling of a macroscopic water resource configuration model and the management requirements of multiple levels and multiple targets is realized, and the water resource configuration scheme can fall to the ground in the actual water resource configuration management.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
FIG. 2 is a schematic diagram of the system of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined by the appended claims, and all changes that can be made by the invention using the inventive concept are intended to be protected.
Example 1
As shown in fig. 1, the present invention provides a water resource allocation method based on multi-decision-making body, which is implemented as follows:
the method comprises the following steps of S1, determining a decision main body participating in water resource configuration according to a topological relation of a water resource configuration system, wherein the decision main body comprises a regional decision main body, an engineering management decision main body and a water user decision main body;
in this embodiment, according to the structure and the topological relation of the water resource configuration system, the management decision-making bodies participating in the water resource configuration are generalized, including the regional decision-making body, the engineering management decision-making body, and the water user decision-making body. The engineering management decision main body comprises a water source engineering decision main body (a surface water engineering decision main body, a ground water engineering decision main body, an off-site water engineering decision main body and a reclaimed water engineering decision main body) and a water plant engineering decision main body; the water user decision main body comprises a town water user decision main body, a rural water user decision main body and an ecological water user decision main body.
S2, generalizing water supply rules of water sources and water plant projects of a water supply end according to the preference and the management requirement of each decision-making main body, and taking parameters of the water supply rules as decision variables;
in this embodiment, based on the preference and the management requirement of each water resource configuration management decision main body, the mathematical description of the water supply rules of each water source of the water supply end and the water plant engineering is determined, and the relevant parameters are used as decision variables for water resource configuration optimization solution.
(1) Water supply regulation of reservoir engineering
1) A regional decision main body: the regional decision-making main body focuses on the space balance of water resource distribution, and controls the available water supply of the reservoir to different regions and water consumers according to the water distribution rule:
WSre gijt ＝θSre gijt ·WSrek gjt
2) A project management decision main body: in actual production, reservoir engineering can only supply water to areas within the coverage of a canal system or a water supply network, so that a main body of engineering management decision needs to determine the water supply range of a reservoir. The water supply range constraint rule can be generalized as:
DRE gijt ＝μre gijt ·WDe ijt
meanwhile, the project management decision main body needs to definitely start the water supply or limit the trigger condition of the water supply so as to control the process and the sequence of the water storage and discharge amount of the reservoir by a dispatching line:
the water supply amount and the water supply process of the reservoir to different units are determined by comprehensively considering the dispatching rule, the water distribution rule and the water supply range constraint rule, and the water supply rule of the surface reservoir engineering is generalized as follows:
WRSre gijt ＝Min(WSre gijt ,DRE gijt ,Ccare gijt )
wherein, WRSre gijt Representing the water supply amount of j customers (in m) of the g reservoir to the i calculation unit in the t period 3 )，WSre gijt The water supply amount of j water consumers (unit is m) on the calculation unit of the i during the t period of the g reservoir 3 )，DRE gijt Representing the water supply demand (in m) of j water users on the corresponding i calculation unit of the g reservoir in the time period t 3 )，Ccare gijt The overflow capacity of a water supply channel of j customers on a calculation unit from a g reservoir to i in a time period t (the unit is m) 3 ) Min (·) denotes a minimization operation, θ Sre gijt The water distribution proportion of j water consumers on the calculation unit from the g reservoir to i in the t period is shown, and the mu re gijt Representing that the water supply of j water users on the corresponding i calculation unit of the g reservoir in the t time period meets the proportion, WDe ijt Represents the water demand (unit is m) of j users in the time period t on the i calculation unit 3 )，WSrek gjt Representing the water suppliable amount (in m) of the g reservoir to the application water level j during the period t 3 )，WX gt Represents the water storage capacity of the g reservoir in the t period (the unit is m) 3 )，VL gjt The storage capacity (unit is m) of the scheduling line control of the corresponding water user j of the g reservoir in the t period 3 )。
(2) Underground water source water supply regulation:
1) The water user decision main body: the underground water source has the advantages of good water quality, low water price and stable water supply amount, and the main decision body of the water consumer prefers to use underground water preferentially, so that the rigid water supply rule is used as the minimum water supply amount constraint of the underground water.
2) A project management decision main body: the decision-making subject of the groundwater engineering prefers to have a definite groundwater supply coefficient to control the groundwater supply process, and coordinates the complementary relationship between the groundwater and the surface water source.
3) A regional decision main body: the main body of the regional decision is better to ensure the safety of the whole regional water supply, and the maximum allowable exploitation amount can be adjusted by setting the adjustment coefficient of the total water supply amount of underground water.
Comprehensively considering decision preference and behavior rules of different water resource configuration main bodies, generalizing the water supply rule of underground water into the following rules:
wherein, WSGro ijt Represents the water supply amount (in m) of j water users to the i calculation unit in t time period of underground water 3 )，WSGro1 ijt Rigid water supply (unit is m) of j water users to i calculation unit in t period of groundwater in first stage 3 )，γgro2 ijt The water supply coefficient (dimensionless) of j water users on the calculation unit of i in the second stage groundwater t time period is shown, and WSGroZ shows a control index (the unit is m) of the total groundwater supply quantity 3 )，γgro3 ijt And the water supply coefficient (dimensionless) of j customers on the calculation unit of i in the third stage groundwater t period is shown, and the KGro is shown as the groundwater supply total quantity adjustment coefficient (dimensionless).
(3) External water regulation source water supply regulation
1) A regional decision main body: from the perspective of construction cost of the water transfer project, the requirement that the external water transfer project must ensure basic water supply is required, so that project construction investment can be recovered, and therefore the external water transfer project must ensure a minimum rigid water supply.
2) A project management decision main body: in the case of water supply to a plurality of areas in the external water transfer project, a project management decision body prefers to have a clear water distribution rule to control water distribution, so that the water supply amount to different calculation units is controlled by an external water transfer water distribution proportional coefficient.
3) The water user decision main body: from the economic analysis, the main decision body of the water user prefers to use less external water transfer, and seeks a water quantity configuration scheme with the lowest water supply cost, so that the external water transfer water supply process is controlled by the external water transfer water supply coefficient.
Comprehensively considering decision preference and behavior rules of different water resource configuration main bodies, generalizing the external water transfer and supply rules into:
wherein WSD ijt The water supply quantity (in m) of j water users on the calculation unit of the time t of the external water regulation is represented 3 )，
The water diversion proportion coefficient, WSD1, of j water users on the calculation unit of i in the time period t in the first stage of external water diversion t Indicating the basic water supply (in m) of the tempered water during the time t 3 )，ωD2 ijt The water supply coefficient of j water consumers on the calculation unit to i in the time period t in the second stage of external water regulation is represented, and WSDZ represents the total amount control index (in m) of external water regulation and water supply 3 )。
(4) Supply rule of reclaimed water
1) A project management decision main body: the reclaimed water can be supplied by cross-regional supply, and the decision main body of the reclaimed water plant engineering needs to control the water supply amount to different units and different water users by the water diversion proportion coefficient, and can be generalized as follows:
2) The water user decision main body: the water user using the regenerated water is relatively fixed, and the produced regenerated water cannot be used in full, so the available water supply amount of the regenerated water is controlled by the reuse rate, which can be shown by the following formula:
the decision preference and the behavior rule of different water resource configuration main bodies are comprehensively considered, and the water supply rule of the reclaimed water is generalized as follows:
wherein WSRec hijt The water supply quantity (in m) of j water users on the calculation unit of i in the t period of h regeneration water plant 3 )，
The water division ratio (dimensionless) of j water consumers on the calculation unit from t time interval of h regeneration water plant to i is shown, wse ijt-1 Represents the sewage quantity (in m) generated by j customers on the calculation unit of the t-1 time interval i 3 )，/>
Represents the proportion (dimensionless) of the quantity of the sewage generated by j water users on the calculation unit of the t time period collection i of the h regeneration water plant, and/or>
Represents the sewage treatment rate (dimensionless) of the regeneration water plant h>
Represents the sewage loss rate (dimensionless) of the h regeneration water plant>
Represents the reuse rate (dimensionless) of the regenerated water of the h regenerated water plant.
(5) Water supply regulation of water works
1) A regional decision main body: the regional decision body tends to implement water resource scheduling by waterworks, thus controlling the water supply to different regions with a water division scale factor:
WSplpun oijt ＝θpl oijt ·Qplpun ot
2) A project management decision main body: the water supply range of a water plant is subject to the pipeline range constraint rule, so that the maximum available water supply to different areas is proportionally controlled with the water supply:
Dpl oijt ＝μpl oijt ·WDe ijt
and (3) comprehensively considering the water distribution rule and the water supply range constraint rule to carry out combined scheduling:
WSpl oijt ＝Min(WSplpun oijt ,Dpl oijt ,Ccapl oijt )、
wherein, WSpl oijt Represents the water supply amount of j water users (unit is m) of the o water plant to the i calculation unit in the t period 3 )，WSplpun oijt The water dividable quantity (unit is m) of j water users on the calculation unit of the I direction of the o water plant in the t period 3 )，Dpl oijt The water supply requirement (in m) of j water users on the corresponding i calculation unit of the o water plant in the time period t is represented 3 )，Ccapl oijt The overflow capacity of a water supply channel of a j water user on a calculation unit from an o water plant to an i in a t period (the unit is m) 3 )，θpl oijt Represents the water diversion proportion (dimensionless) of j water users on the calculation unit of the o water plant from t time to i, qplpun ot Represents the amount of available purified water (unit is m) of the o-water plant in the t period 3 )，μpl oijt Representing that the water supply of j water users on the corresponding i calculation unit of the o water plant in the t period meets the proportion (dimensionless), WDe ijt Represents the water demand (unit is m) of j users in t period on i calculation unit 3 )。
S3, obtaining an initial water distribution result according to the initial values of the water resource quantity, the water demand quantity and the decision variables;
in this embodiment, the surface water resource amount, the underground water resource amount, the external water transfer resource amount, the water demand of each water user, and the initial values of the determined decision variables are input, and the water resource configuration model is run to obtain the initial results of the water supply amount and the water shortage amount of each link, each water user, and each unit.
S4, evaluating decision right values of the water resource allocation decision main bodies to the water allocation schemes from the perspective of multi-main-body decision according to water allocation results, and calculating to obtain stability evaluation values of the water resource allocation schemes, wherein the implementation method comprises the following steps:
s401, respectively calculating preference values of the water resource allocation decision-making main bodies according to water quantity allocation results;
s402, respectively calculating decision right values of the water allocation decision main bodies for the water allocation schemes according to the preference values;
and S403, calculating the average right distribution degree of each decision main body according to the decision right value, and taking the average right distribution degree of each decision main body as a stability evaluation value of the water resource allocation scheme.
In this embodiment, according to the obtained initial result of water allocation, the acceptable degree of each water resource allocation subject to the water allocation scheme is evaluated from the perspective of multi-subject decision, and is used as an objective function value of optimization solution.
(1) And determining the macro preferences of the area decision-making main body, the engineering management decision-making main body and the water user decision-making main body by combining the working contents of the water resource allocation main body in the actual management, and calculating the actual preference value according to the initial water distribution result.
1) The decision preference of the regional decision main body in water resource allocation is to ensure the space balance of water distribution, and the balance degree of matching of industry and water supply is used as a water distribution space balance analysis index:
wherein, eq i Represents the water distribution space equilibrium degree (dimensionless), PH of the ith calculation unit i Represents an industry fractional share, PW, of the ith computing unit i GDP representing the water supply ratio (dimensionless) of the ith computing unit i GDP (in units of elements), W, representing the ith computing unit i Is shown asWater supply in m for i calculation units 3 )，∑GDP i GDP (in units of elements), Σ W, representing the whole area i Indicates the total water supply (in m) of the whole area 3 ). In the supply and demand balance calculation process, the GDP is an initial predicted value during supply and demand balance, and when water shortage exists, the GDP needs to be dynamically adjusted according to the water supply amount, so that the relation between water distribution and regional water supply benefits is reflected.
2) The macroscopic decision preference of an engineering management decision maker is the operability of engineering operation, generally the preference is better than the condition that the water supply process or engineering facilities are changed as less as possible in the actual work, and the lower the water supply amount and the mutation of the water supply process are considered to be, the easier the operation is in the actual management. The engineering operation operability takes an engineering water supply process variation coefficient as an index, and the calculation formula is as follows:
wherein Encv l Indicates an operability index (dimensionless) of the project l,
represents the average value (unit is m) of the water supply process of the project 3 )，σ l Standard deviation (in m) representing water supply process of project 3 )，Ws lt Represents the water supply amount (in m) of project l in the period t 3 ) And T denotes a total period.
If the water supply engineering has agricultural and river ecological water supply tasks, the process of water demand of a water consumer per se has mutation, so that a water plant engineering management decision main body in the middle link of a water resource allocation system is selected as a representative main body for the operability of an evaluation scheme.
3) The user decision main body is used as an end user, the pursuit target of the user decision main body is sufficient guarantee of water resource supply and exertion of water supply benefit, so the macro decision preference of the user decision main body can be expressed by the water demand satisfaction degree:
therein, SAD j Representing the Water demand satisfaction (dimensionless) of household j, WDe j Representing the water demand (in m) of household j 3 )，WS j Represents the actual water supply (in m) for household j 3 )。
(2) Based on the actual preference value of each main body determined, calculating the right size of each water resource configuration main body in scheme decision:
wherein, a k Represents the decision right value, w of the water resource decision main body k to the water distribution scheme k Represents the weight coefficient of the water resource decision body k,
represents the ideal preference value f of the water resource decision main body k k The actual preference value of the water resource decision main body k in the water quantity distribution scheme is shown, and m represents the total number of the water resource decision main bodies. It is considered that the larger the actual macroscopic preference value of a certain decision maker is from the ideal preference value, the greater the dissatisfaction degree of the scheme is, and the greater the right is in decision making。
(3) And calculating the average right distribution degree of each decision main body based on the decision weight of each decision main body, and taking the average right distribution degree as the stability evaluation value of each decision main body to the scheme. The scheme with the most average distribution right among decision makers has the highest stability, so a variation coefficient sta is adopted to measure the difference degree of the decision right sizes of the water resource allocation main bodies, and the calculation formula is as follows:
wherein sta is a variation coefficient of decision right values of all decision makers and represents a stability evaluation value of the scheme. The lower the sta value is, the closer the decision weights of decision makers in the scheme are represented, the higher the stability (feasibility) of the scheme is, and the higher the opportunity for the related decision maker to reach the agreement is; sigma denotes a k The variance of the values is such that,
denotes a k Average value of values, a k And (4) representing the decision right value of the water resource decision body k to the water quantity distribution scheme.
S5, updating the water supply rule by using the particle swarm algorithm by taking the stability evaluation value as a target function and the water supply rule as a decision variable;
in the embodiment, the water supply rules of the water sources and the water plant engineering determined in the step S2 are used as decision variables based on the particle swarm optimization algorithm for solving, the stability evaluation values of the water resource main bodies to the schemes determined in the step S4 are used as objective functions, and the evolution of the water supply rules of the water supply end is realized by screening individual extreme values and global extreme values, updating the evolution speed and direction of the decision variables, evolving the decision variables and the like.
And S6, judging whether the circulation finishing condition is met, if so, outputting a water supply rule and a water quantity distribution result, and using the water supply rule and the water quantity distribution result as an optimal water resource distribution scheme, otherwise, recalculating water quantity distribution according to the updated water supply rule parameters, and returning to the step S4.
In this embodiment, it is determined whether a loop termination determination condition is satisfied, and if the loop termination determination condition is not satisfied, a water amount configuration result is recalculated based on the updated water supply rule parameter, and step S4 and step S5 are repeated; if the circulation finishing condition is met, the final water supply rule of the water supply end and the water quantity distribution result are output as the optimal scheme, so that the water quantity distribution scheme can be ensured to be approved by all water quantity distribution management decision makers, and the method can be implemented in the actual water quantity distribution work.
The invention fully considers the preference and behavior rules of each decision-making main body in the water resource allocation process, combines the topological relation of a water resource allocation system and the actual water quantity allocation management work, comprehensively considers the preferences of a water resource allocation system engineering management decision-making main body, a water user decision-making main body and a regional decision-making main body, combines different preferences of the water resource allocation main body and water source characteristics at a water supply end and converts the preferences into a simple mathematical expression formula, and establishes a water supply rule with the superposition of multi-layer rules of different water sources; the acceptable degree of each water resource allocation management decision-making main body to the water amount allocation scheme is evaluated from the perspective of multi-main-body decision-making at the water using end, and the acceptable degree is used as an objective function of the overall optimization of a water resource allocation system to guide and optimize the water supply rules of each water source at the water supplying end and the water plant engineering, so that the combination of a macroscopic water resource allocation model and the management requirements of multiple levels and multiple targets is realized, the macroscopic decision-making preference is met, the water amount allocation work of a microscopic level can be guided, and a foundation is provided for approaching the actual engineering operation and water amount allocation simulation.
Example 2
As shown in FIG. 2, the present invention provides a water resource allocation system based on multi-decision-making main body, comprising:
the system comprises a first calculation module, a second calculation module and a third calculation module, wherein the first calculation module is used for determining a decision main body participating in water resource configuration according to a topological relation of a water resource configuration system, and the decision main body comprises a regional decision main body, an engineering management decision main body and a water user decision main body;
the second calculation module is used for generalizing the water supply rules of each water source and water plant engineering at the water supply end according to the preference and the management requirement of each decision-making main body, and taking the parameters of the water supply rules as decision variables;
the third calculation module is used for obtaining an initial water distribution result according to the initial values of the water resource quantity, the water demand quantity and the decision variables;
the fourth calculation module is used for evaluating the decision right value of each water resource configuration decision main body to the water allocation scheme from the perspective of multi-main-body decision according to the water allocation result, and calculating to obtain a stability evaluation value of the water resource configuration scheme;
the fifth calculation module is used for updating the water supply rule by taking the stability evaluation value as a target function and the water supply rule as a decision variable and utilizing a particle swarm algorithm;
and the sixth calculation module is used for judging whether the circulation ending condition is met, outputting the water supply rule and the water quantity distribution result if the circulation ending condition is met, and taking the water supply rule and the water quantity distribution result as an optimal water resource distribution scheme, otherwise, recalculating the water quantity distribution according to the updated water supply rule parameters and returning to the fourth calculation module.
The water resource allocation system based on multiple decision-making subjects provided in the embodiment shown in fig. 2 can implement the technical solution shown in the water resource allocation method based on multiple decision-making subjects in the above method embodiment, and the implementation principle and beneficial effects thereof are similar, and are not described herein again.
In the embodiment of the invention, the functional units can be divided according to a water resource configuration method based on a multi-decision-making main body, for example, each function can be divided into each functional unit, and two or more functions can be integrated into one processing unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software functional unit. It should be noted that the division of the cells in the present invention is schematic, and is only a logical division, and there may be another division manner in actual implementation.
In the embodiment of the invention, in order to realize the principle and the beneficial effect of the water resource allocation method based on the multi-decision-making main body, the water resource allocation system based on the multi-decision-making main body comprises a hardware structure and/or a software module which is corresponding to each function. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware and/or combinations of hardware and computer software, where a function is performed in a hardware or computer software-driven manner, and that the function described may be implemented in any suitable manner for each particular application depending upon the particular application and design constraints imposed on the technology, but such implementation is not to be considered as beyond the scope of the present application.
In the embodiment, the water supply rule of the generalized water supply end is preferred by the decision-making bodies based on the water resource allocation, the stability of the water distribution scheme is evaluated based on the decision-making bodies based on the water resource allocation, the particle swarm algorithm is facilitated to aim at the scheme stability, the water supply rule of the water supply end is taken as a decision variable, the final water supply rule and the water resource allocation scheme are determined through iterative calculation, and the final scheme can be ensured to obtain the approval of management decision makers in all links of water resource allocation.
It will be appreciated by those skilled in the art that the embodiments described herein are for the purpose of assisting the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto and changes may be made without departing from the scope of the invention in its aspects.
Claims (3)
1. A water resource allocation method based on a multi-decision-making main body is characterized by comprising the following steps:
the method comprises the following steps of S1, determining a decision main body participating in water resource configuration according to a topological relation of a water resource configuration system, wherein the decision main body comprises a regional decision main body, an engineering management decision main body and a water user decision main body;
s2, generalizing water supply rules of water sources and water plant projects at a water supply end according to the preference and the management requirement of each decision-making main body, and taking parameters of the water supply rules as decision variables;
in the step S2, the water supply rules of each water source of the water supply end and the water plant project are generalized, including:
generalizing reservoir engineering water supply rules:
WRSre gijt ＝Min(WSre gijt ,DRE gijt ,Ccare gijt )
WSre gijt ＝θSre gijt ·WSrek gjt
DRE gijt ＝μre gijt ·WDe ijt
wherein, WRSre gijt The water supply quantity of j water users on the calculation unit of the time t of the g reservoir is represented, and the unit is m 3 ，WSre gijt The water supply quantity of j water users on the calculation unit of the time t of the g reservoir is represented, and the unit is m 3 ，DRE gijt The water supply quantity of j water users on the corresponding i calculation unit of the g reservoir in the time period t is expressed in the unit of m 3 ，Ccare gijt The overflow capacity of a water supply channel of j customers on a calculation unit from the g reservoir to i in t time period is represented, and the unit is m 3 Min (-) denotes a minimization operation, θ Sre gijt The water division ratio of j water users on the calculation unit of the time interval i of the g reservoir is shown, and mu re gijt Representing that the water supply of j water users on the corresponding i calculation unit of the g reservoir in the t time period meets the proportion, WDe ijt The water demand of j water users on the i calculation unit in the time period t is represented, and the unit is m 3 ，WSrek gjt Representing the water suppliable amount of the g reservoir in m for the application water j during the period t 3 ，WX gt Representing the water storage capacity of the g reservoir in the t period and the unit is m 3 ，VL gjt The storage capacity of the scheduling line control of the corresponding water user j of the g reservoir in the t period is expressed in m 3 ；
Generalizing the water supply rule of the underground water source:
wherein, WSGro ijt Representing that the groundwater uses water for j on the computing unit to i in the time period tWater supply of household in m 3 ，WSGro1 ijt The rigid water supply quantity of j water users on the calculation unit of i in the first stage groundwater t period is expressed in the unit of m 3 ，γgro2 ijt The water supply coefficient of j consumers on the calculation unit of i in t time interval of the groundwater of the second stage is represented, WSGroZ represents the control index of the total amount of the groundwater supply, and the unit is m 3 ，γgro3 ijt The water supply coefficient of j water users on the calculation unit of i in the t time period of the groundwater in the third stage is shown, and KGro shows the adjustment coefficient of the total groundwater supply amount;
generalizing the water supply rule of the external water supply:
wherein WSD ijt The water supply quantity of j water consumers on the calculation unit of the external water supply unit in t time period is expressed in the unit of m 3 ，
The water diversion proportion coefficient, WSD1, of j water users on the calculation unit to i in the time period t in the first stage of external water diversion t Indicates the basic water supply amount of the external water regulation in the t period and has the unit of m 3 ，ωD2 ijt The water supply coefficient of j water consumers on the calculation unit to i in the time period t of the second stage of external water regulation is represented, WSDZ represents the total amount control index of external water regulation and water supply, and the unit is m 3 ；
Generalized reclaimed water supply rules:
wherein WSRec hijt The water supply quantity of j water consumers on the calculation unit of i in the t period of h regeneration water plant is expressed in the unit of m 3 ，
The water division ratio, wse, of j water consumers on the calculation unit from t time interval to i of the h regeneration water plant ijt-1 Represents t-1 time period i calculationThe amount of sewage generated by j households on the unit is m 3 ，/>
Represents the proportion of the amount of the sewage generated by j water users on the calculation unit of the t time period collection i of the h regeneration water plant, and then>
The sewage treatment rate of the regeneration water plant is shown, device for selecting or keeping>
Indicates a sewage loss rate in a regeneration water plant h>
Representing the recycling rate of the regenerated water of the h regenerated water plant;
generalizing the water supply rule of the water plant engineering:
WSpl oijt ＝Min(WSplpun oijt ,Dpl oijt ,Ccapl oijt )
WSplpun oijt ＝θpl oijt ·Qplpun ot
Dpl oijt ＝μpl oijt ·WDe ijt
wherein, WSpl oijt The water supply quantity of j water users on the calculation unit of i in t period of o water plant is expressed in m 3 ，WSplpun oijt The dividable water volume of j customers on the calculation unit from the o water plant to the i in the t time period is represented by the unit m 3 ，Dpl oijt The water supply quantity of j water users on the corresponding i calculation unit of the o water plant in the time period t is expressed in the unit of m 3 ，Ccapl oijt The overflow capacity of a water supply channel of j water users on a calculation unit from an o water plant to i in t time period is represented, and the unit is m 3 ，θpl oijt Represents the water division ratio of j water consumers on the calculation unit from the o water plant to the i in the t time period, qplpun ot Represents the available water purification quantity of the o-water plant in the t period, and the unit is m 3 ，μpl oijt Represents that the water supply of j users on the corresponding i computing unit of the o water plant in the t time period meets the proportion, WDe ijt Representing the need of j customers on the i computing unit in the t periodAmount of water in m 3 ；
S3, obtaining a water distribution result according to the water resource quantity, the water demand quantity and the initial value of the decision variable;
s4, evaluating decision right values of the water resource allocation decision main bodies for the water allocation schemes from the perspective of multi-main-body decision according to water allocation results, and calculating to obtain stability evaluation values of the water resource allocation schemes;
the step S4 includes the steps of:
s401, respectively calculating preference values of all water resource allocation decision-making main bodies according to water quantity allocation results;
s402, respectively calculating decision right values of the water allocation decision main bodies for the water allocation schemes according to the preference values;
s403, calculating the average right distribution degree of each decision main body according to the decision right value, and taking the average right distribution degree of each decision main body as a stability evaluation value of a water resource allocation scheme;
the expression for the decision right value size is as follows:
wherein, a k Represents the decision right value, w of the water resource decision main body k to the water distribution scheme k Represents the weight coefficient of the water resource decision body k,
represents the ideal preference value, f, of the water resource decision body k k Represents the actual preference value of the water resource decision body k in the water distribution scheme,m represents the total number of water resource decision-making bodies;
s5, updating the water supply rule by using the stability evaluation value as a target function and the water supply rule as a decision variable through a particle swarm algorithm;
and S6, judging whether the circulation finishing condition is met, if so, outputting a water supply rule and a water quantity distribution result to serve as an optimal water resource distribution scheme, otherwise, recalculating water quantity distribution according to the updated water supply rule parameters, and returning to the step S4.
2. The method according to claim 1, wherein the decision preference value of each water resource allocation decision principal comprises:
decision preference value of regional decision body in water resource configuration:
wherein, eq i Indicating the water distribution space balance, PH, of the ith computing unit i Represents an industry fractional share, PW, of the ith computing unit i GDP, which represents the proportional share of the water supply of the i-th calculation unit i GDP representing the ith computing unit in units of elements, W i Represents the water supply amount of the ith calculation unit in m 3 ，∑GDP i GDP representing the entire region in units of Yuan, ∑ W i Represents the total water supply of the whole area in m 3 ；
Decision preference value of project management decision main body in water resource configuration:
wherein Encv l The operability index of the project l is represented,
represents the average value of water supply process of project and has unit of m 3 ，σ l Standard deviation of water supply process of project I, unit is m 3 ，Ws lt Represents the water supply amount of the project l in the t period and has the unit of m 3 T represents the total period;
decision preference value of water user decision main body in water resource configuration:
therein, SAD j Represents the Water demand satisfaction, WDe, of the Water user j j Represents the water demand of a household j in m 3 ，WS j Represents the actual water supply for household j in m 3 。
3. A water resource allocation system of the multi-decision-maker-based water resource allocation method according to any one of claims 1-2, comprising:
the system comprises a first calculation module, a second calculation module and a third calculation module, wherein the first calculation module is used for determining a decision main body participating in water resource configuration according to a topological relation of a water resource configuration system, and the decision main body comprises a regional decision main body, an engineering management decision main body and a water user decision main body;
the second calculation module is used for generalizing the water supply rules of each water source and water plant engineering at the water supply end according to the preference and the management requirement of each decision-making main body, and taking the parameters of the water supply rules as decision variables;
the water supply rule of each water source and water plant engineering of generalized water supply end includes:
generalizing reservoir engineering water supply rules:
WRSre gijt ＝Min(WSre gijt ,DRE gijt ,Ccare gijt )
WSre gijt ＝θSre gijt ·WSrek gjt
DRE gijt ＝μre gijt ·WDe ijt
wherein, WRSre gijt The water supply quantity of j water users on the calculation unit of the time t of the g reservoir is represented, and the unit is m 3 ，WSre gijt The water supply quantity of j water users on the calculation unit of the time t of the g reservoir is represented, and the unit is m 3 ，DRE gijt The water supply quantity of j water consumers on the calculation unit of i corresponding to the g reservoir in the time period t is expressed in the unit of m 3 ，Ccare gijt The overflow capacity of a water supply channel of j customers on a calculation unit from the g reservoir to i in t time period is represented, and the unit is m 3 Min (·) denotes a minimization operation, θ Sre gijt The water distribution proportion of j water consumers on the calculation unit from the g reservoir to i in the t period is shown, and the mu re gijt Representing that the water supply of j water users on the corresponding i calculation unit of the g reservoir in the t time period meets the proportion, WDe ijt The water demand of j customers on the i calculation unit in the time period t is expressed in the unit of m 3 ，WSrek gjt Representing the water suppliable amount of the g reservoir in m for the application water j during the period t 3 ，WX gt The storage capacity of the g reservoir in the t period is expressed in the unit of m 3 ，VL gjt The storage capacity of the scheduling line control of the corresponding water user j of the g reservoir in the t period is expressed in m 3 ；
Generalization of underground water source water supply rules:
wherein, WSGro ijt The unit of the water supply quantity of j water consumers on the calculation unit of i in t time interval of the underground water is expressed as m 3 ，WSGro1 ijt The rigid water supply quantity of j water users on the calculation unit of i in the first stage groundwater t period is expressed in the unit of m 3 ，γgro2 ijt The water supply coefficient of j consumers on the calculation unit of i in t time interval of the groundwater of the second stage is represented, WSGroZ represents the control index of the total amount of the groundwater supply, and the unit is m 3 ，γgro3 ijt The water supply coefficient of j water users on the calculation unit of i in the t time period of the groundwater in the third stage is shown, and KGro shows the adjustment coefficient of the total groundwater supply amount;
generalizing the water supply rule of the external water supply:
wherein WSD ijt The water supply quantity of j water consumers on the calculation unit of the external water supply unit in t time period is expressed in the unit of m 3 ，
The water diversion proportion coefficient, WSD1, of j water users on the calculation unit of i in the time period t in the first stage of external water diversion t Indicates the basic water supply amount of the external water regulation in the t period and has the unit of m 3 ，ωD2 ijt The water supply coefficient of j water consumers on the calculation unit to i in the time period t of the second stage of external water regulation is represented, WSDZ represents the total amount control index of external water regulation and water supply, and the unit is m 3 ；
Generalized reclaimed water supply rules:
wherein WSRec hijt The water supply quantity of j water consumers on the calculation unit of i in the t period of h regeneration water plant is expressed in the unit of m 3 ，
Represents the water division ratio of j water consumers on the calculation unit from the t time interval of h regeneration water plant to i, wse ijt-1 Represents the sewage quantity generated by j customers on the calculation unit of the t-1 time interval i, and the unit is m 3 ，/>
Represents the proportion of the amount of the sewage generated by j water users on the calculation unit of the t time period collection i of the h regeneration water plant, and then>
The sewage treatment rate of the regeneration water plant is shown, device for selecting or keeping>
Represents the sewage loss rate of the h regenerating water plant,. Sup.,>
representing the recycling rate of the regenerated water of the h regenerated water plant;
generalizing the water supply rule of the water plant engineering:
WSpl oijt ＝Min(WSplpun oijt ,Dpl oijt ,Ccapl oijt )
WSplpun oijt ＝θpl oijt ·Qplpun ot
Dpl oijt ＝μpl oijt ·WDe ijt
wherein, WSpl oijt The water supply quantity of j water users on the calculation unit of i in t period of o water plant is expressed in m 3 ，WSplpun oijt The water dividable quantity of j households on the calculation unit from the o water plant to the i in the t period is expressed in the unit of m 3 ，Dpl oijt The water supply quantity of j water users on the corresponding i calculation unit of the o water plant in the time period t is expressed in the unit of m 3 ，Ccapl oijt The overflow capacity of a water supply channel of j water users on a calculation unit from an o water plant to i in t time period is represented, and the unit is m 3 ，θpl oijt Represents the water diversion ratio of j water users on the calculation unit of the o water plant from t time interval to i, qplpun ot Represents the water supply quantity of the o water plant in the t period and has the unit of m 3 ，μpl oijt Means o waterworks corresponding i calculationThe water supply of j water users on the unit in the time period t meets the proportion, WDe ijt The water demand of j water users on the i calculation unit in the t period is expressed in m 3 ；
The third calculation module is used for obtaining an initial water distribution result according to the initial values of the water resource quantity, the water demand quantity and the decision variables;
a fourth calculating module, configured to evaluate, from a multi-subject decision perspective, a decision right value of each water resource allocation decision subject for the water allocation scheme according to the water allocation result, and calculate a stability evaluation value of the water resource allocation scheme, where the stability evaluation value is specifically:
respectively calculating the preference value of each water resource allocation decision main body according to the water quantity allocation result;
respectively calculating decision right values of the water resource allocation decision main bodies to the water amount allocation scheme according to the preference values;
calculating the average right distribution degree of each decision main body according to the decision right value, and taking the average right distribution degree of each decision main body as a stability evaluation value of a water resource allocation scheme;
the expression for the decision right value size is as follows:
wherein, a k Represents the decision right value, w of the water resource decision main body k to the water distribution scheme k Represents the weight coefficient of the water resource decision main body k,
ideal for representing water resource decision principal kPreference value, f k Representing the actual preference value of the water resource decision main body k in the water quantity distribution scheme, and m represents the total number of the water resource decision main bodies;
the fifth calculation module is used for updating the water supply rule by taking the stability evaluation value as a target function and the water supply rule as a decision variable and utilizing a particle swarm algorithm;
and the sixth calculation module is used for judging whether the circulation ending condition is met, outputting the water supply rule and the water quantity distribution result if the circulation ending condition is met, and taking the water supply rule and the water quantity distribution result as an optimal water resource distribution scheme, otherwise, recalculating the water quantity distribution according to the updated water supply rule parameters and returning to the fourth calculation module.
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