Integrated joint dispatching method for water network system in flood basin based on subsequent water replenishment

Abstract

The present application relates to a kind of integrated joint deployment method of pan-basin water network system based on subsequent water source water supply. Including analysis is included in pan-basin water network system water transfer project and water supply project, construct integrated water network system;Pan-basin supply-demand relationship analysis is carried out in layers and grades, according to the composition and positional relationship of the pan-basin water network system Direct object and indirect object of subsequent water source water supply object are determined, and the water supply amount of each water supply object is determined;Pan-basin water network system integrated joint deployment model of subsequent water source water supply is constructed, and target function and constraint condition are set in layers and grades;Layered and graded scheduling rule system is formulated, and scheduling rules are formulated respectively;The pan-basin water network system integrated joint deployment model is optimized and solved based on the scheduling rule system, and the pan-basin water network system integrated joint deployment scheme is obtained.The present application realizes the further improvement of water resource shortage condition, and water resources are coordinated in a larger range and higher level pan-basin.

Description

Technical Field

[0001] This invention belongs to the field of pan-basin water network allocation technology, specifically involving an integrated joint allocation method for pan-basin water network systems based on subsequent water source replenishment. Background Technology

[0002] Inter-basin water transfer projects are engineering projects that allocate water resources from water-rich basins to water-scarce areas through artificial facilities. They are a key measure to address the uneven spatial and temporal distribution of water resources and an important component of the water network. Affected by climate change and socio-economic development, the water-receiving areas face new water resource situations and supply-demand relationships, and further improving water scarcity, implementing ecological protection, and achieving sustainable development still face multiple challenges. Based on the current single water transfer pattern of "source area-receiving area," it is necessary to study subsequent water source projects to replenish water and form a broader basin-wide water network pattern.

[0003] Existing technologies mainly suffer from the following problems: For the allocation of water resources in individual water transfer projects, there is insufficient interconnection and inter-regional coordination between these projects, inadequate synergy and integration of the broader watershed network, and a low capacity for integrated water resource allocation. Furthermore, there is a lack of systematic research on the coordination of multiple water transfer projects, especially considering subsequent water sources based on existing inter-basin projects. To solve this challenge of integrated allocation within a broader watershed network connecting old and new water transfer projects, it is necessary to comprehensively consider the integrated replenishment of subsequent water sources for multiple inter-basin water transfer projects. This would enable broader watershed coordinated allocation of water resources on a larger spatial scale, enhance the capacity for adjusting between wet and dry seasons, and improve resilience in the face of climate change uncertainties. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the aforementioned background technology and provide an integrated joint allocation method for a pan-basin water network system based on subsequent water source replenishment.

[0005] The technical solution adopted in this invention is: an integrated joint allocation method for a basin-wide water network system based on subsequent water source replenishment, comprising the following steps:

[0006] Step 1: Analyze the water transfer and water replenishment projects included in the pan-basin water network system, clarify the research scope and boundaries, divide the research scope into the source area, water transfer area, and water receiving area, construct the topology of the water replenishment project, water transfer project, source area, water transfer area, and water receiving area to form an integrated water network system of water replenishment-water transfer-water supply, and collect long-sequence data;

[0007] Step 2: Conduct a hierarchical analysis of the supply and demand relationship of the entire watershed. Based on the composition and location of the watershed network system, determine the direct and indirect targets of subsequent water replenishment, and determine the water replenishment amount required by each target.

[0008] Step 3: Construct an integrated joint allocation model for the pan-basin water network system for subsequent water replenishment, and set objective functions and constraints in a hierarchical manner;

[0009] Step 4: Develop a hierarchical and tiered allocation rule system, and formulate allocation rules for the water replenishment project subsystem, the water transfer project subsystem, and the water supply project subsystem respectively;

[0010] Step 5: Based on the aforementioned allocation rule system, optimize and solve the integrated joint allocation model of the pan-basin water network system to obtain the integrated joint allocation scheme of the pan-basin water network system.

[0011] In step 1, the integrated water network system of water replenishment-water transfer-water supply consists of three subsystems: the first layer is the water replenishment engineering subsystem, which consists of reservoirs in the water source area and water replenishment projects, and is used to replenish water to various water transfer projects; the second layer is the water transfer engineering subsystem, which consists of reservoirs in the water transfer area and various water transfer projects, and is used to provide externally transferred water to the corresponding water receiving area; the third layer is the water supply engineering subsystem, which consists of water transfer projects and local water source projects in the water receiving area, and is used to supply water to various water users.

[0012] Preferably, the direct object is the main water supply target of the water replenishment project, and the indirect object is the upstream and downstream related areas of the direct object. The main water supply target of the water replenishment project is defined as the first priority water receiving area, and the upstream and downstream related areas of the first priority water receiving area are defined as the second priority water receiving area. Water supply and demand analysis is performed on the first priority water receiving area to determine the required water replenishment amount of the water receiving area. When there are multiple second priority water receiving areas, water supply and demand analysis is performed on each second priority water receiving area according to a predetermined priority order to determine the required water replenishment amount of each second priority water receiving area.

[0013] A preferred approach is to set the objective function of the integrated joint dispatch model for the pan-basin water network system in a hierarchical and tiered manner, including:

[0014] The preferred approach is to minimize the total water shortage in the receiving areas of each inter-basin water transfer project after subsequent water replenishment; minimize the total water wastage of each reservoir in the integrated water network system of water replenishment-water transfer-water supply; and minimize the multi-year average total water shortage for water users in the receiving areas of each water transfer project subsystem, while ensuring that the guarantee rate of each department of water users in the receiving areas meets the standards.

[0015] To minimize the total water shortage in the receiving areas of all inter-basin water transfer projects, the following formula is used:

[0016] min ;

[0017] In the formula, The average total water shortage over many years in the water-receiving areas within the integrated water network system of water replenishment, water transfer and water supply; After subsequent water replenishment is implemented, the first The water shortage in the water-receiving area of ​​the water diversion project; The number of water diversion projects;

[0018] The preferred approach, which minimizes the total water wastage of each reservoir in the integrated water replenishment-regulation-supply system, is calculated using the following formula:

[0019] min(f1);

[0020] ;

[0021] In the formula, f1 is the average total water discharge of the reservoir in the integrated water network system of water replenishment-water regulation-water supply over many years; The average annual water discharge of the l-th reservoir in the integrated water network system of water replenishment, water transfer, and water supply; N is the number of reservoirs;

[0022] The preferred approach, for each water diversion project and its subsystems in the receiving area, minimizes the water shortage for water users in the receiving area and ensures that the guarantee rate of each department of water users in the receiving area meets the standards, is calculated using the following formula:

[0023] min ;

[0024] In the formula, For the first The average total water shortage per year for water users in the water receiving area of ​​each water diversion project subsystem; Number of water-using sectors; , The first The water user department calculates the guarantee rate and the compliance guarantee rate; Let be the penalty function; when Less than hour, It is a positive number; when Greater than hour, .

[0025] The preferred constraints for setting the integrated joint dispatch model of the pan-basin water network system in a hierarchical and graded manner include:

[0026] Preferred constraints include: total system water volume constraint, requiring that the replenishment volume of subsequent water sources be less than the replenishable volume of those subsequent water sources and less than the sum of the water volumes required by all water diversion projects; reservoir water balance constraint, requiring that the inflow, outflow, and loss of water in each reservoir during each scheduling period meet the water volume balance; reservoir operating water level constraint, requiring that the water level of each reservoir be between the allowable lower and upper limits; and engineering capacity constraint, requiring that the operating flow of water diversion, replenishment, and supply within the system during each period does not exceed its respective maximum design flow.

[0027] The total system water volume constraint is calculated using the following formula:

[0028] ;

[0029] In the formula, This is the final amount of water to replenish subsequent water sources. This is to provide replenishment water for subsequent water sources. This is the sum of the water diversion volumes required for all water diversion projects;

[0030] The water balance constraint of the reservoir is calculated using the following formula:

[0031] ;

[0032] In the formula, , These represent the initial and final reservoir capacities of reservoir l during time period t. , These represent the inflow and outflow of water into the reservoir during time period t. The outflow includes water released for power generation, direct water supply, water transferred out, and water discarded. The evaporation and seepage loss of reservoir l during time period t;

[0033] The reservoir's operating water level constraint is calculated using the following formula:

[0034] ;

[0035] In the formula, , , These represent the reservoir's water level, the lower limit of the permissible water level, and the upper limit of the permissible water level during time period t;

[0036] Engineering capacity constraints are calculated using the following formula:

[0037] ;

[0038] In the formula, , The values ​​represent the water volume and corresponding maximum engineering capacity for time period t.

[0039] Preferably, the allocation rule system includes: setting allocation rules for reservoirs in the water replenishment area within the water replenishment project subsystem, stipulating that the beneficial operation of reservoirs in the water replenishment area is subordinate to flood control operation, and that the water level of reservoirs in the water replenishment area must be lowered to the flood limit level before the flood season; setting a water replenishment control level, and starting water replenishment when the water level of reservoirs in the water diversion area is lower than the preset water replenishment start level, and stopping water replenishment when the water level of reservoirs in the water diversion area reaches the preset water replenishment stop level; setting allocation rules for reservoirs in the water diversion area within the water diversion project subsystem, stipulating that the beneficial operation of reservoirs in the water diversion area is subordinate to flood control operation, and that the water level of reservoirs in the water diversion area must be lowered to the flood limit level before the flood season; and setting a water diversion control level under the condition of prioritizing the interests of the water diversion area, and setting a water replenishment control level when the water level of reservoirs in the water diversion area is lower than the water diversion control level. The regulations restrict water diversion to indirect sources; they establish allocation rules for joint water supply between water diversion projects and local water source projects in the water supply engineering subsystem, stipulating that the water receiving area should prioritize the use of local water sources, with the order of water supply from each source being: surface reservoirs in the water receiving area, groundwater in the water receiving area, other water sources in the water receiving area, and water diverted from outside the area. The water supply volume of water diverted from outside the area is determined on the premise of fully utilizing local water sources in the water receiving area; they stipulate that surface reservoirs in the water receiving area should prioritize meeting ecological discharge requirements, with the order of water supply from surface reservoirs in the water receiving area being: agricultural needs, domestic needs, industrial needs, and other water needs; they stipulate that the annual water supply from groundwater in the water receiving area should not exceed its annual available water supply volume; and they stipulate that the order of water supply from outside the area is: domestic needs, industrial needs, and the replenishment needs of the water receiving area's regulating reservoirs.

[0040] Preferably, under the allocation rule system, based on long-sequence data, an intelligent optimization algorithm is used to optimize and solve the integrated joint allocation model of the pan-basin water network system to obtain the integrated joint allocation scheme of the pan-basin water network system. Specifically, the input of the optimization solution includes at least: the composition and topology of the pan-basin water network system (water replenishment engineering subsystem, water transfer engineering subsystem, water supply engineering subsystem), long-sequence hydrological and water demand data, the water replenishment required by each water replenishment object obtained from the supply and demand analysis of the direct and indirect water replenishment objects, and the objective functions of the system layer and subsystem layer (maximum multi-year average total water shortage). The system is characterized by the following constraints: minimum total water wastage over many years, minimum guarantee rate for all water users and minimum water shortage; minimum total water volume constraint, reservoir water balance constraint, reservoir operating water level constraint, and engineering capacity constraint; water allocation rule parameters (water replenishment start line, water replenishment stop line, water transfer control line, water supply sequence from surface water reservoir in the receiving area to groundwater in the receiving area to other water sources in the receiving area to external water transfer, minimum ecological discharge flow from surface water reservoir in the receiving area, and upper limit of annual groundwater supply in the receiving area); and acceptability criteria (acceptability threshold for downstream water supply impact, acceptability threshold for ecological impact, and acceptability threshold for shipping impact). The optimization process includes at least the following: searching and generating an effective set of solutions that satisfy the objective function and constraints within the feasible domain; randomly selecting a set of allocation rules from the effective solution set and evaluating their impact on downstream water supply, ecology, navigation, and power generation; updating a set of allocation rules from the effective solution set and re-evaluating them until the above impacts are acceptable, thus forming recommended allocation rules and their corresponding joint allocation results; the output of the optimization solution includes at least: the following: Recommended values ​​for parameters of water replenishment volume and time period allocation and allocation rules (water replenishment start line, water replenishment stop line, water transfer control line, flood limit water level, control water level), water level of key reservoirs in the water replenishment area and water transfer area and water outflow (water supply) process, operation flow process of water conveyance canals and supporting projects (not exceeding the corresponding maximum engineering capacity), water allocation scheme of the water receiving area formed in the order of "surface water reservoir in the water receiving area - groundwater in the water receiving area - other water sources in the water receiving area - external water transfer" and guarantee rate of water user departments, and water replenishment allocation results for each water transfer project subsystem (multi-year average increase in water volume and typical annual allocation).

[0041] A more preferred approach would include analyzing the allocation results and evaluating the benefits of the integrated joint allocation scheme for the pan-basin water network system, including at least: the increase in water allocation to direct and indirect water supply targets, the degree of improvement in the uniformity of the water allocation process, the increase in the discharge volume at key sections, and the improvement in the minimum flow period guarantee rate.

[0042] This invention provides a standard approach for the integrated joint allocation of water resources in a pan-basin water network system based on subsequent water source replenishment. It is simple and easy to implement in practice and has high feasibility. It is of great significance for further improving the water shortage situation, coordinating the allocation of water resources in a pan-basin on a larger scale and at a higher level, and promoting the construction of the overall national water network pattern.

[0043] This invention establishes an integrated joint allocation model for the entire watershed, encompassing water replenishment, water transfer, and water supply, based on long-sequence data and a hierarchical allocation rule system. It employs an intelligent optimization algorithm to search within the feasible region that satisfies the objective functions and constraints of the system and its subsystems, finding an effective set of solutions that meets the objective functions and constraints of the entire watershed network system and its subsystems. Furthermore, it comprehensively considers the impact of integrated allocation across the entire watershed network: while ensuring the water security of the entire watershed network system itself, it comprehensively evaluates downstream factors such as water supply, ecology, navigation, and power generation. When a randomly selected allocation rule set from the effective solution set is deemed unacceptable after evaluation, a new allocation rule set is updated from the effective solution set and re-evaluated until the impact of the relevant multiple factors is acceptable, thus forming recommended allocation rules and their corresponding joint allocation results. This process emphasizes the systematic nature and rationality of the results, reflecting comprehensive coordination between upstream and downstream areas, and between the left and right banks.

[0044] Under the recommended integrated allocation rules for the pan-basin water network system, this invention forms an integrated joint allocation scheme for the pan-basin water network system, including: determining the subsequent water replenishment volume and its time-sharing process; the water level-outflow (water supply) process of key reservoirs in the replenishment and transfer areas, and the operational flow process of water conveyance canals and supporting projects (meeting corresponding engineering capacity constraints); following the sequence of "surface reservoirs in the water receiving area → groundwater → other water sources → external water transfer," proposing water allocation schemes for each water user (domestic, industrial, agricultural, and other); and providing the allocation results of water replenishment targets for each water transfer project subsystem (multi-year average increase in water volume and typical annual allocation). The above scheme elements and processes are used to support subsequent allocation effect analysis and benefit evaluation.

[0045] This invention analyzes the allocation results and evaluates the benefits based on key indicators, including at least: the increase in water volume for both direct and indirect water recipients, the degree of improvement in the uniformity of the water allocation process, the increase in discharge volume at key sections, and the improvement in the minimum flow period guarantee rate. Simultaneously, it verifies the compliance of constraints such as the total system water volume, reservoir water balance and water level limits, and the engineering capacity for water allocation / transfer / supply. The evaluation criteria are consistent with the model objectives, rules, and constraints to ensure a comprehensive balance between water resource allocation efficiency, ecological protection, and operational feasibility. Attached Figure Description

[0046] Figure 1This is a schematic diagram of the integrated joint allocation method for a watershed-wide water network system based on subsequent water source replenishment, as per the present invention.

[0047] Figure 2 This is a schematic diagram of the flood basin water network system based on subsequent water replenishment in an embodiment of the present invention;

[0048] Figure 3 This is a schematic diagram illustrating the optimized scheduling of water supply from DJK Reservoir to the central route project in an embodiment of the present invention;

[0049] Figure 4 This is a schematic diagram of the water volume of the central route northward diversion before and after YJBH in the embodiments of the present invention. Detailed Implementation

[0050] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0051] like Figure 1 As shown, the present invention provides an integrated joint allocation method for a flood basin water network system based on subsequent water source replenishment, comprising:

[0052] Step 1: Analyze the water transfer and water replenishment projects included in the pan-basin water network system, clarify the research scope and boundaries, divide the research scope into the source area, water transfer area, and water receiving area, construct the topology of the water replenishment project, water transfer project, source area, water transfer area, and water receiving area to form an integrated water network system of water replenishment-water transfer-water supply, and collect long-sequence data;

[0053] Step 2: Conduct a hierarchical analysis of the supply and demand relationship of the entire watershed. Based on the composition and location of the watershed network system, determine the direct and indirect targets of subsequent water replenishment, and determine the water replenishment amount required by each target.

[0054] Step 3: Construct an integrated joint allocation model for the pan-basin water network system for subsequent water replenishment, and set objective functions and constraints in a hierarchical manner;

[0055] Step 4: Develop a hierarchical and tiered allocation rule system, and formulate allocation rules for the water replenishment project subsystem, the water transfer project subsystem, and the water supply project subsystem respectively;

[0056] Step 5: Based on the aforementioned allocation rule system, optimize and solve the integrated joint allocation model of the pan-basin water network system to obtain the integrated joint allocation scheme of the pan-basin water network system;

[0057] Step 6: Analyze the allocation results and evaluate the benefits of the integrated joint allocation scheme for the pan-basin water network system.

[0058] In step 1, long-series data on hydrology, meteorology, and socio-economic conditions are collected through statistical yearbooks of various industries.

[0059] In step 1, the integrated water network system of water replenishment-water transfer-water supply consists of three subsystems: the first layer is the water replenishment engineering subsystem, which consists of reservoirs in the water source area and water replenishment projects, and is used to replenish water to various water transfer projects; the second layer is the water transfer engineering subsystem, which consists of reservoirs in the water transfer area and various water transfer projects, and is used to provide externally transferred water to the corresponding water receiving area; the third layer is the water supply engineering subsystem, which consists of water transfer projects and local water source projects in the water receiving area, and is used to supply water to various water users.

[0060] In the above technical solution, the direct object is the main water supply target of the water replenishment project, and the indirect object is the upstream and downstream related areas of the direct object. The main water supply target of the water replenishment project is defined as the first priority water receiving area, and the upstream and downstream related areas of the first priority water receiving area are defined as the second priority water receiving area. Water supply and demand analysis is performed on the first priority water receiving area to determine the required water replenishment amount of the water receiving area. When there are multiple second priority water receiving areas, water supply and demand analysis is performed on each second priority water receiving area according to a predetermined priority order to determine the required water replenishment amount of each second priority water receiving area.

[0061] In the above technical solution, the objective function of the integrated joint dispatch model for the pan-basin water network system is set in a hierarchical and tiered manner, including:

[0062] After subsequent water replenishment, the total water shortage in the water-receiving areas of various inter-basin water transfer projects will be minimized; the total water wastage of each reservoir in the integrated water network system of water replenishment-water transfer-water supply will be minimized; and the average annual total water shortage of water users in the water-receiving areas of each water transfer project subsystem will be minimized, and the guarantee rate of each department of water users in the water-receiving areas will meet the standards.

[0063] In the above technical solutions, the total water shortage in the receiving areas of each inter-basin water transfer project is minimized, calculated using the following formula:

[0064] min ;

[0065] In the formula, The average total water shortage over many years in the water-receiving areas within the integrated water network system of water replenishment, water transfer and water supply; After subsequent water replenishment is implemented, the first The water shortage in the water-receiving area of ​​the water diversion project; The number of water diversion projects;

[0066] In the above technical solution, the total water wastage of each reservoir in the integrated water replenishment-water transfer-water supply system is minimized, which is calculated using the following formula:

[0067] min(f1);

[0068] ;

[0069] In the formula, f1 is the average total water discharge of the reservoir in the integrated water network system of water replenishment-water regulation-water supply over many years; The average annual water discharge of the l-th reservoir in the integrated water network system of water replenishment, water transfer, and water supply; N is the number of reservoirs;

[0070] In the above technical solution, for each water diversion project and its subsystem in the receiving area, the water shortage for water users in the receiving area is minimized, and the guarantee rate of each department of water users in the receiving area meets the standard, which is calculated by the following formula:

[0071] min ;

[0072] In the formula, For the first The average total water shortage per year for water users in the water receiving area of ​​each water diversion project subsystem; Number of water-using sectors; , The first The water user department calculates the guarantee rate and the compliance guarantee rate; Let be the penalty function; when Less than hour, It is a positive number; when Greater than hour, .

[0073] In the above technical solution, the constraints for setting up the integrated joint dispatch model of the pan-basin water network system in a hierarchical and graded manner include:

[0074] The system's total water volume constraint requires that the replenishment volume of subsequent water sources be less than the available replenishment volume of those subsequent water sources and less than the sum of the water volumes required for all water diversion projects; the reservoir water balance constraint requires that the inflow, outflow, and loss of water in each reservoir during each scheduling period meet the water volume balance; the reservoir operating water level constraint requires that the water level of each reservoir be between the allowable lower and upper limits; and the engineering capacity constraint requires that the operating flow of water diversion, replenishment, and supply within the system during each period does not exceed its respective maximum design flow.

[0075] In the above technical solution, the total system water volume constraint is calculated using the following formula:

[0076] ;

[0077] In the formula, This is the final amount of water to replenish subsequent water sources. This is to provide replenishment water for subsequent water sources. This is the sum of the water diversion volumes required for all water diversion projects;

[0078] The water balance constraint of the reservoir is calculated using the following formula:

[0079] ;

[0080] In the formula, , These represent the initial and final reservoir capacities of reservoir l during time period t. , These represent the inflow and outflow of water into the reservoir during time period t. The outflow includes water released for power generation, direct water supply, water transferred out, and water discarded. The evaporation and seepage loss of reservoir l during time period t;

[0081] The reservoir's operating water level constraint is calculated using the following formula:

[0082] ;

[0083] In the formula, , , These represent the reservoir's water level, the lower limit of the permissible water level, and the upper limit of the permissible water level during time period t;

[0084] Engineering capacity constraints are calculated using the following formula:

[0085] ;

[0086] In the formula, , The values ​​represent the water volume and corresponding maximum engineering capacity for time period t.

[0087] In the above technical solution, the allocation rule system includes: setting allocation rules for reservoirs in the water replenishment area within the water replenishment project subsystem, stipulating that the beneficial operation of reservoirs in the water replenishment area must be subordinate to flood control operation, and that the water level of reservoirs in the water replenishment area must be lowered to the flood limit level before the flood season; setting a water replenishment control level, and starting water replenishment when the water level of reservoirs in the water diversion area is lower than the preset water replenishment start level, and stopping water replenishment when the water level of reservoirs in the water diversion area reaches the preset water replenishment stop level; setting allocation rules for reservoirs in the water diversion area within the water diversion project subsystem, stipulating that the beneficial operation of reservoirs in the water diversion area must be subordinate to flood control operation, and that the water level of reservoirs in the water diversion area must be lowered to the flood limit level before the flood season; and setting a water diversion control level under the condition of prioritizing the interests of the water diversion area, and setting a water replenishment control level when the water level of reservoirs in the water diversion area is lower than the water diversion control level. The regulations restrict water diversion to specific water sources; they establish allocation rules for joint water supply between water diversion projects and local water source projects in the water supply engineering subsystem, stipulating that the water receiving area should prioritize the use of local water sources, with the order of water supply from each source being: surface reservoirs in the water receiving area, groundwater in the water receiving area, other water sources in the water receiving area, and water diverted from outside the area. The amount of water diverted from outside the area is determined on the premise of fully utilizing local water sources in the water receiving area; they stipulate that surface reservoirs in the water receiving area should prioritize meeting ecological discharge requirements, with the order of water supply from surface reservoirs in the water receiving area being: agricultural needs, domestic needs, industrial needs, and other water needs; they stipulate that the annual water supply from groundwater in the water receiving area should not exceed its annual available water supply; and they stipulate that the order of water diverted from outside the area is: domestic needs, industrial needs, and the replenishment needs of the water receiving area's regulating reservoirs.

[0088] In the above scheme, the integrated water network system of water replenishment, water transfer, and water supply features the integration of old and new water sources and the combination of old and new water conservancy projects. A system of allocation rules needs to be formulated for each level and stage.

[0089] 1) Set up water source area reservoir allocation rules in the water replenishment project subsystem, and clarify the priority order and mutual constraints of water replenishment to each water transfer project;

[0090] ①The water use scheduling of reservoirs in the water replenishment area must be subordinate to flood control scheduling, and the water level must be lowered to the flood control limit level before the flood season:

[0091] ;

[0092] In the formula, For the first time during the flood season The water level of the reservoir during the period of replenishment, For the first The flood control limit water level of the reservoir during the designated period.

[0093] ②When replenishing water from the replenishment reservoir to the reservoir in the water transfer area, a water replenishment control line must first be set up. and When the water level of the reservoir in the water diversion area Below At that time, start water replenishment. achieve Stop adding water.

[0094] 2) Set up water transfer rules for reservoirs in the water transfer project subsystem, and clarify the priority order and mutual constraints of water transfer from each reservoir in the water transfer area to its own water source area and each water receiving area;

[0095] ① The water diversion project's water use for beneficial purposes must be subordinate to flood control operations, and the water level must be lowered to the flood control limit level before the flood season:

[0096] ;

[0097] In the formula, For the first time during the flood season The reservoir water level is adjusted constantly. For the first The reservoir's flood control limit water level is adjusted at all times.

[0098] ② Under the premise of prioritizing the interests of the water transfer area, establish a control line for the water transfer reservoir. The priority of water diversion is determined based on the water level of the water diversion reservoir: when Below Water diversion is restricted for indirect water supply targets.

[0099] 3) Clarify the allocation rules for water diversion projects and local water source projects in the water supply subsystem to jointly supply water to the water receiving area.

[0100] ① The order of water supply from the water diversion project to the local water source project in the receiving area is as follows: surface water reservoir in the receiving area, groundwater in the receiving area, other water sources in the receiving area, and water diverted from other areas. The amount of water diverted from other areas after subsequent water source replenishment is determined on the premise of making full use of the local water resources conditions in the receiving area.

[0101] ② Surface water reservoirs in the water-receiving area should prioritize meeting ecological discharge requirements.

[0102] ;

[0103] In the formula, For the first The outflow of surface water from reservoirs in the water-receiving area at all times; For the first It is constantly subject to the ecological discharge flow demand of surface water reservoirs in the water-receiving area.

[0104] ③ The order of priority for surface water supply from reservoirs in the water-receiving area is as follows: agricultural demand, domestic demand, industrial demand, and other water demand;

[0105] ④ The groundwater supply in the water-receiving area is less than the annual water supply:

[0106] ;

[0107] In the formula, For the first Annual groundwater supply in the water-receiving area; For the first Annual groundwater supply in the water-receiving area.

[0108] ⑤ The order of water supply for external water transfer is as follows: domestic demand, industrial demand, and water storage reservoir filling demand in the receiving area.

[0109] ⑥ The sum of the multi-year average water supply from surface reservoirs, groundwater, other water sources, and external water transfers in the water-receiving area is less than or equal to the sum of the multi-year average domestic water demand, industrial water demand, agricultural water demand, and other water demand in the water-receiving area:

[0110] ;

[0111] In the formula, , , , These are the multi-year average surface water reservoir water supply, the multi-year average groundwater supply in the water receiving area, the multi-year average water supply from other water sources, and the multi-year average water transfer volume; , , , These are the average annual domestic water demand, average annual industrial water demand, average annual agricultural water demand, and average annual other water demand in the water-receiving area.

[0112] In the above technical solution, under the allocation rule system, based on long-sequence data, an intelligent optimization algorithm (NSGA-II / NSGA-III (multi-objective genetic algorithm)) is used to optimize and solve the integrated joint allocation model of the pan-basin water network system to obtain the integrated joint allocation scheme of the pan-basin water network system. Specifically, the input of the optimization solution includes at least: the composition and topology of the pan-basin water network system (water replenishment engineering subsystem, water transfer engineering subsystem, water supply engineering subsystem), long-sequence hydrological and water demand data, the water replenishment required by each water replenishment object obtained from the supply and demand analysis of the direct and indirect water replenishment objects, and the objective functions of the system layer and subsystem layer (minimizing the multi-year average total water shortage, multi-year average total water abandonment). The system is designed to minimize water shortages, ensure that all water user sectors meet the required standards, and minimize water deficits. Constraints include: total system water volume constraints, reservoir water balance constraints, reservoir operating water level constraints, and engineering capacity constraints. Allocation rules parameters include: water replenishment start line, water replenishment stop line, water transfer control line, water supply sequence from surface water reservoirs in the receiving area to groundwater in the receiving area, other water sources in the receiving area, and external water transfer; minimum ecological discharge flow from surface water reservoirs in the receiving area; and the upper limit of annual groundwater supply in the receiving area. Acceptability criteria include: downstream water supply impact acceptability threshold, ecological impact acceptability threshold, shipping impact acceptability threshold, and power generation acceptability threshold. The optimization process includes at least the following steps: searching and generating an effective set of solutions that satisfy the objective function and constraints within the feasible domain; randomly selecting a set of allocation rules from the effective solution set and evaluating their impact on downstream water supply, ecology, navigation, and power generation; updating a set of allocation rules from the effective solution set and re-evaluating them until the above impacts are acceptable, thus forming recommended allocation rules and their corresponding joint allocation results; the output of the optimization solution includes at least the following: subsequent water sources. Recommended values ​​for parameters of water replenishment volume and its time period allocation and allocation rules (water replenishment start line, water replenishment stop line, water transfer control line, flood limit water level, control water level), water level of key reservoirs in the water source area and water transfer area and water outflow (water supply) process, operation flow process of water conveyance canals and supporting projects (not exceeding the corresponding maximum engineering capacity), water allocation scheme of the water receiving area formed in the order of "surface water reservoirs in the water receiving area - groundwater in the water receiving area - other water sources in the water receiving area - external water transfer" and guarantee rate of water user departments, and water replenishment allocation results for each water transfer project subsystem (multi-year average increase in water volume and typical annual allocation).

[0113] In the above technical solution, the analysis and benefit evaluation of the integrated joint dispatch scheme of the pan-basin water network system includes at least: the increase in water dispatch volume of direct and indirect water replenishment objects, the degree of improvement in the uniformity of the water dispatch process; the increase in water discharge volume at key sections, and the improvement in the guarantee rate of minimum flow period.

[0114] This invention is illustrated using the YJBH Project, the NSBD Central Route Phase I Project, the YHJW Project, and the QQG Water Diversion Project (including the EB Water Resources Allocation Project) as examples to connect the CJ water source, HJ water network, HB water network, and GZ water network, forming a comprehensive watershed network system. Figure 2 The diagram shows the physical relationships within the water network system. The YJBH project serves as the downstream water source for the first phase of the NSBD central route project and also plays a crucial role in enabling the upstream YHJW project of HJ to reach its long-term scale.

[0115] The NSBD Central Route Project is an infrastructure project aimed at alleviating water shortages in the HB region. The first phase of the project diverts water from the HJ DJK Reservoir to supply water to BJ, TJ, HB1, and HN1. The project primarily serves urban domestic and industrial water needs, while also considering ecological and agricultural water use. The average annual water diversion volume is 9.5 billion cubic meters. 3 The first phase of the main canal water diversion project starts from TFQ and runs along the northern edge of the TBH Plain and the western edge of the HB Plain, in the transition zone between the piedmont hills and the plain. It generally runs from south to north, primarily using gravity flow for water supply, with a water conveyance distance of 1432 km. The planned second phase of the central route will have a scale of 13 billion cubic meters. 3 The above describes the YHJW project, which spans the CJ and HH river basins. It is a large-scale inter-basin water transfer project diverting water from the HJ basin to the GZ region of the WH basin. The project draws water from the HJX reservoir on the HJ main stream and the SHK reservoir on the Ziwu River, a tributary of the HJ, and transports it through the QL water conveyance tunnel to the Huangchigou water distribution hub. From there, water is further supplied to the GZ water-receiving area via the south and north water conveyance trunk lines and branch lines. The planned near-term water transfer volume is 1 billion m³. 3 In the long term, it will reach 1.5 billion m³. 3 The average annual water diversion volume of QQG is 1.398 billion m³. 3 Looking towards the 2035 timeline, the NSBD Central Route Project and the YHJW Project both face the problem of insufficient water supply capacity in their first phases, necessitating the implementation of subsequent water source projects.

[0116] The YJBH project aims to divert water from CJ to HJ, replenishing the main stream and tributaries of HJ, increasing the water resources in the HJ basin, and improving its water resource allocation capacity. This will increase the water volume diverted northward by the NSBD central route project and the water diverted by the YHJW project. Simultaneously, it will create conditions for supplying water to urban and rural areas and industries along the EB region and the project's water transmission route. Therefore, the YJBH project, as an important subsequent water source, promotes the construction of a broader watershed network in the core areas of CJ, HJ, HB, and GZ.

[0117] Using this invention, the integrated joint allocation of water resources across the CJ, HJ, HB, and GZ water networks, taking into account the water replenishment of the YJBH project, is implemented.

[0118] (1) Analyze the elements of the water network system and divide the system components.

[0119] ① Based on geographical location, determine the subsequent water replenishment sources to be included in the integrated study of the pan-basin water network. The HJ main stream is an important water source for inter-basin water transfer projects. The NSBD middle route project, YHJW project, and QQG water diversion project draw water from the upper and middle reaches of HJ respectively. Therefore, there is a possibility of uniformly replenishing water from CJ to HJ, thereby indirectly replenishing water to various water diversion projects.

[0120] Based on the locational relationship between CJ and HJ, and considering the runoff volume of adjacent river sections, the water source for replenishing HJ is determined to be the SX Reservoir on the CJ main stream, which is defined as the replenishment area. The HJ basin is both the water receiving area for the YJBH project and the water source area for water diversion projects such as the NSBD central route project, and is defined as the water diversion area in this invention. The HB area is the water receiving area for the NSBD central route project, the GZ area is the water receiving area for the YHJW project, and the EB area is the water receiving area for the QQG water diversion project, and are all uniformly defined as water receiving areas.

[0121] ② The basin-wide water network system, comprised of the CJ water source, the HJ main stream and its middle and lower reaches, the HB water network, the GZ water network, and the EB water network, exhibits a hierarchical structure. Key projects in the water replenishment area are selected and incorporated into the integrated water network system study, further refining the inclusion of replenishment areas and reservoirs in each water-receiving area within the integrated study. The composition of each subsystem is further clarified and refined, identifying water-receiving users and local reservoirs that are included in the integrated water network system study.

[0122] The SX Reservoir and YJBH Project are defined as the water replenishment project subsystem; the HJ basin and the NSBD central route project, YHJW project, and EB water resources allocation project are defined as the water transfer project subsystem; the NSBD central route project and its receiving area, the YHJW project and its receiving area, and the QQG water diversion project and its receiving area are defined as the water supply project subsystem.

[0123] ③ Collect long-series data on hydrology, meteorology, economy and society from 1956 to 2018 through statistical yearbooks of various industries.

[0124] (2) Conduct new supply and demand relationship research in a tiered and hierarchical manner.

[0125] ① Based on the composition and location of the watershed network system, determine the direct and indirect targets for subsequent water replenishment.

[0126] In the water network of the CJ, HJ, HB, and GZ regions that are considered for water replenishment from the YJBH project, the direct recipient of water replenishment is the first phase of the NSBD central route and its HB region. According to the order of indirect water replenishment, the classification of indirect recipients is as follows: the HJ mid-to-lower reaches main stream water replenishment project and its HJ main stream and mid-to-lower reaches, the YHJW project and its GZ region, and the QQG water diversion project and its EB region.

[0127] ② Conduct research on the supply and demand relationship of different levels and tiers across the watershed.

[0128] The first tier comprises the primary direct recipients of water replenishment, namely the HB region of the NSBD Central Route Phase I project's water receiving area. Using long-term, ten-day data from 1956 to 2018, the required replenishment volume for the water transfer area is determined. The second tier comprises indirect recipients of water replenishment, involving multiple entities. The tiers are determined according to the order of the HJ main stream and its middle and lower reaches, the GZ region, and the EB region. Through water supply and demand analysis, also using long-term, ten-day data from 1956 to 2018, the required replenishment volume for each indirect recipient is determined. The results are shown in Table 1.

[0129] Table 1. Water Replenishment Required for Each Water Diversion Project Subsystem (Unit: 100 Million m³) 3 )

[0130] Subsystem Water replenishment required NSBD Centerline Project 46.1 YHJW Project 5.3 QQG water diversion 0.18 HJ downstream main stream requires downstream discharge 6.9

[0131] (3) Construct an integrated allocation model for the pan-basin water network system for subsequent water replenishment.

[0132] Based on the locational relationship between the YJBH project, the first phase of the NSBD central route project, the YHJW project, and the QQG water diversion project, the CJ water source (SX reservoir area), DJK reservoir, YHJW project, QQG, the middle and lower reaches of HJ, users in the central route water receiving area, local surface water resources, groundwater resources, water conveyance canals, and supporting projects are combined. Taking DJK reservoir as the leading water source and CJSX as the subsequent water source, a pan-basin water network integrated joint allocation model is constructed, which is "CJSX replenishes water to the HJ basin - HJ transfers water to HB, GZ, EB and other areas - supplies water to HB, GZ, EB and other areas". The overall objective function and subsystem objective functions of the water network system are clarified, and the main constraints are defined. The goal is to increase the water resources in the water diversion area and the water diversion volume of each water diversion project. The Pan-CJ-HJ-HB-GZ water network system will be established to achieve joint regulation of water resources by connecting the CJ downstream water source, the HJ water network, the GZ water network, and the HB water network, thus promoting the efficient use of water resources.

[0133] (4) Formulate a hierarchical and graded allocation rule system

[0134] 1) YJ allocation rules are as follows: (e.g.) Figure 3 As shown,

[0135] ①The YJBH project shall first comply with the flood control scheduling of the SX Reservoir;

[0136] ② Set the YJ control water level line. When the water level of the DJK reservoir is lower than the YJ start line, YJ will start water replenishment; when the water level of the DJK reservoir reaches the YJ stop line, YJ will stop water replenishment.

[0137] 2) The allocation rules for the water diversion project subsystem are as follows:

[0138] ①The beneficial operation scheduling of DJK Reservoir shall be subordinate to the flood control scheduling;

[0139] ②When the water level of DJK Reservoir is below 148m in May and June and below 150m from July to April of the following year, water diversion from QQG Water Diversion Project and YHJW Project will be restricted, and the discharge flow will be controlled in conjunction with the inflow situation.

[0140] 3) Principles of water resource allocation in the water-receiving area

[0141] ① The receiving area should prioritize the use of local surface water reservoirs, groundwater, and other water sources, followed by water diverted from other regions. The amount of water diverted northward after the YJ water replenishment will be determined, provided that local water resources are fully utilized.

[0142] ② Surface water reservoirs in the water-receiving area should first ensure the release of ecological flow, releasing 10% of the multi-year average flow;

[0143] ③ Surface reservoirs in the water-receiving area should first be returned to agricultural and ecological use as much as possible, then considered for urban domestic water supply, and finally for industrial water supply.

[0144] ④ To ensure that groundwater in the water-receiving area is not over-extracted, the groundwater supply in the water-receiving area shall not exceed the annual water supply volume;

[0145] ⑤ Water diverted from outside the region is prioritized for domestic water use, followed by industrial water supply to the direct supply area, and when there is surplus water, it is used to replenish the water diverted from outside the region in the reservoir.

[0146] ⑥ In accordance with the principle that water supply should not exceed demand, the total annual average water supply from surface reservoirs, groundwater, other water sources, and external water transfers in the water-receiving area shall not exceed the total annual average domestic water demand, industrial water demand, agricultural water demand, and other water demand in the water-receiving area.

[0147] (5) Research on integrated allocation scheme of the flood basin water network system

[0148] Based on long-term, ten-day data from 1956 to 2018, integrated joint regulation calculations of water resources in the pan-basin water network were conducted. Building upon the current scheduling procedures for the DJK Reservoir, and considering the changes in inflow conditions after the implementation of the YJBH project, the calculations were iteratively performed with the goal of maximizing the water conveyance capacity of the main canal. This yielded an effective solution set that satisfied the objective functions and constraints of the pan-basin water network system and its subsystems.

[0149] Within the aforementioned effective solution set, adhering to the principles of minimal impact on downstream water supply, ecology, and navigation of the SX Reservoir, moderate impact on SX power generation, full utilization of the DJK Reservoir's regulation and storage capacity and the existing water conveyance capacity of the main canal of the Central Route Project, increasing the northward diversion of water to the Central Route water-receiving area based on supply demand, while simultaneously satisfying the long-term water diversion scale of YHJW, the QQG water diversion project, and the downstream discharge demand of the HJ main stream, the optimized scheduling diagram of water supply from HJDJK to the Central Route Project is determined as follows: Figure 2 As shown.

[0150] exist Figure 2 Under the optimized allocation rules, the total water replenishment for the YJBH project is 3.6 billion m³. 3 Considering that the YJBH project serves as a subsequent water source for the NSBD Central Route Phase I project, the YHJW project, and the total downstream discharge of the HJ project have all increased, by 2.49 billion m³ respectively. 3 500 million m 3 610 million m 3 .

[0151] Table 2 Water Allocation Scheme for YJ Project (Unit: 100 million m³) 3

[0152]

[0153] (6) Analysis of the integrated dispatching effect of the pan-basin water network system

[0154] After the implementation of the YJBH project, the average annual water diversion volume from Taocha to the north reached 11.51 billion cubic meters. 3 This represents an increase of 2.49 billion m compared to the same series of solutions without YJ. 3 .See Figure 4 .

[0155] After the implementation of the YJBH project, the YHJW area will basically reach its long-term scale, with an average annual water diversion of 1.47 billion cubic meters per year. 3 The minimum annual water diversion volume and the water diversion volume in 95% frequency years have been increased to 1.01 billion m³. 3 1.12 billion m 3 The coefficient of non-uniformity decreased from 3.6 to 1.5.

[0156] After the implementation of the YJBH project, the average annual discharge of the HJG section is 23.63 billion cubic meters. 3 This represents an increase of 590 million cubic meters compared to before the project's implementation. 3 The minimum flow period guarantee rate has been increased to 98%. During the consecutive dry years of 1995-1999 and 2012-2016, except for a few periods, the HJG section can basically meet the minimum flow requirements.

[0157] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this specification belong to prior art known to those skilled in the art.

Claims

1. A method for integrated joint regulation of a water network system in a subsequent water source replenishment-based flood basin, characterized in that, The method comprises the following steps: Step 1: analyzing the water diversion project and water supplement project of the pan-basin water network system, defining the research scope and boundary, dividing the research scope into a water supplement area, a water diversion area and a water receiving area, constructing a topology structure of the water supplement project, the water diversion project and the water supplement area, the water diversion area and the water receiving area to form a water supplement-water diversion-water supply integrated water network system, and collecting long sequence data; Step 2: performing pan-basin supply-demand relationship analysis in layers and grades, determining direct objects and indirect objects of subsequent water source supplement objects according to the composition and positional relationship of the pan-basin water network system, and determining the water supplement demand of each water supplement object; Step 3: constructing a pan-basin water network system integrated joint allocation model for subsequent water source supplement, and setting target functions and constraint conditions in layers and grades; Step 4: formulating an allocation rule system in layers and grades, and formulating allocation rules for the water supplement project subsystem, the water diversion project subsystem and the water supply project subsystem respectively; Step 5: optimizing and solving the pan-basin water network system integrated joint allocation model based on the allocation rule system to obtain a pan-basin water network system integrated joint allocation scheme; In step 1, the water supplement-water diversion-water supply integrated water network system is composed of three subsystems: the first layer is a water supplement project subsystem composed of water supplement areas and water supplement projects, which is used to supplement water to each water diversion project; the second layer is a water diversion project subsystem composed of water diversion areas and water diversion projects, which is used to provide external water diversion to the corresponding water receiving area; and the third layer is a water supply project subsystem composed of water diversion projects and local water source projects in the water receiving area, which is used to supply water to each water user; The target functions of the pan-basin water network system integrated joint allocation model are set in layers and grades, including: minimizing the total water shortage of each inter-basin water diversion project receiving area after subsequent water source supplement, minimizing the total abandoned water of each reservoir in the water supplement-water diversion-water supply integrated water network system, and minimizing the multi-year average total water shortage of each water user in the water receiving area of each water diversion project subsystem and meeting the guarantee rate of each department of the water receiving area.

2. The integrated joint dispatching method of a flood basin water network system based on subsequent water source replenishment according to claim 1, characterized in that, The direct objects are the main water supplement objects of the water supplement project, and the indirect objects are the upstream and downstream related areas of the direct objects. The main water supplement objects of the water supplement project are defined as the first-order water receiving area, and the upstream and downstream related areas of the first-order water receiving area are defined as the second-order water receiving area. Water resource supply-demand analysis is performed on the first-order water receiving area to determine the water supplement demand of the water receiving area. When there are multiple second-order water receiving areas, water resource supply-demand analysis is performed on each second-order water receiving area according to a predetermined priority order to determine the water supplement demand of each second-order water receiving area.

3. The integrated joint dispatching method of a flood basin water network system based on subsequent water source replenishment according to claim 1, characterized in that, The total water shortage of each inter-basin water diversion project receiving area is minimized by the following formula: min ; In the formula, The total average water shortage of the water receiving area in the water supply-regulation-supply integrated water network system for many years; The total average water shortage of the water receiving area in the water supply-regulation-supply integrated water network system for many years; The water shortage of the water receiving area of the water transfer project; The number of water transfer projects; The total abandoned water of each reservoir in the water supplement-water diversion-water supply integrated water network system is minimized by the following formula: min (f1); ； In the formula, f1 is the multi-year average total abandoned water quantity of the reservoir of the water supply-regulation-supply integrated water network system; is the multi-year average abandoned water quantity of the ith reservoir of the water supply-regulation-supply integrated water network system; N is the number of reservoirs; For each water diversion project and its water receiving area subsystem, the water shortage of the water receiving area is minimized, and the guarantee rate of each department of the water receiving area is met by the following formula: min ; In the formula, is the total water shortage of the water receiving area of the water transfer project subsystem in the past years; is the number of water use departments; , is the calculation guarantee rate and the standard guarantee rate of the water use department, respectively; is the penalty function; when is less than , is a positive number; when is greater than , .​​ 4. The integrated joint dispatching method of a flood basin water network system based on subsequent water source replenishment according to claim 1, characterized in that, The constraint conditions of the pan-basin water network system integrated joint allocation model are set in layers and grades, including: The system total water quantity constraint requires that the replenishment quantity of the subsequent water source is less than the replenishable quantity of the subsequent water source and less than the sum of the water diversion quantities required by each water diversion project; the reservoir water quantity balance constraint requires that the water quantity of each reservoir entering, leaving and lost in each scheduling period meets the water quantity balance; the reservoir operation water level constraint requires that the water level of each reservoir is between the allowable lower limit value and the upper limit value; and the project capacity constraint requires that the water diversion, replenishment and water supply operation flow in each period in the system does not exceed the respective maximum design flow.

5. The integrated joint dispatching method of a flood basin water network system based on subsequent water source replenishment according to claim 4, characterized in that, The system total water quantity constraint is calculated by the following formula: ； In the formula, is the final replenishment amount of the subsequent water source, is the replenishable amount of the subsequent water source, is the sum of the water diversion amounts required by each water diversion project; The reservoir water quantity balance constraint is calculated by the following formula: ； In the formula, , are the initial and final reservoir capacities at time t, respectively; , are the inflow and outflow of the reservoir at time t, respectively, and the outflow includes power generation discharge, direct water supply, water release, and abandoned water; is the evaporation and seepage loss of the reservoir at time t. The reservoir operation water level constraint is calculated by the following formula: ； In the formula, , , are the water level of the reservoir, the lower limit value and the upper limit value of the allowed water level, respectively, for the period t. The project capacity constraint is calculated by the following formula: ； wherein , Q and Qmax are the water quantity and the corresponding maximum project capacity, respectively, for a period of time t.

6. The integrated joint dispatching method of a flood basin water network system based on subsequent water source replenishment according to claim 1, characterized in that, The allocation rule system includes: setting the reservoir allocation rule of the replenishment source area in the replenishment project subsystem; setting the reservoir allocation rule of the water diversion area in the water diversion project subsystem; and setting the allocation rule of the joint water supply of the water diversion project and the local water source project of the water receiving area in the water supply project subsystem.

7. The integrated joint dispatching method of a flood basin water network system based on subsequent water source replenishment according to claim 1, characterized in that, Under the allocation rule system, based on long sequence data, the integrated joint allocation model of the pan-basin water network system is optimized and solved by using an intelligent optimization algorithm, to obtain the integrated joint allocation scheme of the pan-basin water network system.

8. The integrated joint dispatching method of a flood basin water network system based on subsequent water source replenishment according to claim 1, characterized in that, Further including allocation result analysis and benefit evaluation on the integrated joint allocation scheme of the pan-basin water network system, at least including: the increase of the water diversion quantity of the direct and indirect objects of the replenishment, the improvement degree of the water diversion process uniformity; the increase of the water discharge quantity of the key section, and the improvement range of the guarantee rate of the minimum flow period.

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