CN115169803A - Irrigation district water transmission and distribution gate group combined scheduling method and system - Google Patents
Irrigation district water transmission and distribution gate group combined scheduling method and system Download PDFInfo
- Publication number
- CN115169803A CN115169803A CN202210634543.3A CN202210634543A CN115169803A CN 115169803 A CN115169803 A CN 115169803A CN 202210634543 A CN202210634543 A CN 202210634543A CN 115169803 A CN115169803 A CN 115169803A
- Authority
- CN
- China
- Prior art keywords
- water
- gate
- diversion
- water level
- junction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 531
- 238000009826 distribution Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000003973 irrigation Methods 0.000 title claims abstract description 52
- 230000002262 irrigation Effects 0.000 title claims abstract description 52
- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 44
- 238000004088 simulation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 108091006146 Channels Proteins 0.000 description 47
- 238000010586 diagram Methods 0.000 description 6
- 239000003621 irrigation water Substances 0.000 description 4
- 238000007726 management method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Forestry; Mining
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/04—Constraint-based CAD
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/10—Numerical modelling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/08—Fluids
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Human Resources & Organizations (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- Entrepreneurship & Innovation (AREA)
- Marketing (AREA)
- General Business, Economics & Management (AREA)
- Computing Systems (AREA)
- Evolutionary Computation (AREA)
- Operations Research (AREA)
- Game Theory and Decision Science (AREA)
- Educational Administration (AREA)
- Algebra (AREA)
- Development Economics (AREA)
- Fluid Mechanics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Computer Hardware Design (AREA)
- Quality & Reliability (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Animal Husbandry (AREA)
- Marine Sciences & Fisheries (AREA)
- Mining & Mineral Resources (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a method and a system for jointly scheduling a water distribution gate group in an irrigation area, wherein the method comprises the following steps: basic parameters required by scheduling are obtained, wherein the basic parameters comprise the safety fall of a gate of a check gate, a normal operation water level interval, the water diversion water level of a water diversion gate, the water diversion demand of a branch channel and the minimum operation flow of a main channel water intake; constructing a canal system water transmission and distribution model based on a one-dimensional hydrodynamic model; based on the obtained basic parameters and the constructed canal system water transmission and distribution model, respectively setting scheduling rules according to different types of gates; and simulating the diversion process of the main canal water intake based on the set dispatching rule, and determining the final diversion process. The invention can be applied to the informatization and automation construction of the irrigation area, replaces the traditional manual scheduling mode of the gate group, avoids the problem of low manual scheduling precision, can save the labor cost, realizes the automation, mechanization and refinement management of the irrigation area, and has better practical effect and application value.
Description
Technical Field
The invention relates to the technical field of irrigation, in particular to a method and a system for jointly scheduling a water delivery and distribution gate group in an irrigation area.
Background
In order to ensure that the field is sufficiently irrigated, the channel system water delivery and distribution process needs to be scheduled, water is reasonably introduced, distributed and returned mainly in a gate group combined scheduling mode, and the irrigation efficiency of the irrigation area is influenced by the difference of scheduling modes. Before describing the method of this patent, it is necessary to first introduce the basic situation of the irrigation canal system and gate, which is generally shown in fig. 1.
The irrigation canal mainly comprises a water inlet canal and a water outlet canal, and the gate can be divided into a check gate, a water diversion gate and a water outlet gate according to the position and function of the gate, and the functions can be achieved only by matching the check gate, the water diversion gate and the water outlet gate. In fig. 1, two hubs are distributed, where the hub is a gate group. The main functions of each engineering building in the irrigation process are as follows:
a diversion canal: according to the size and complexity of an irrigation area, diversion channels of different levels such as main channels, branch channels, hopper channels, agricultural channels and the like can be arranged to divert water from rivers and irrigate to the field, and the two levels of channels are taken as an example, namely the diversion main channels and the branch channels;
a water return channel: used for draining the surplus water quantity in the adjustment of the water level and the flow of the canal system;
a check gate: the water diversion main channel is positioned on the water diversion main channel and used for blocking up the upstream water level so that the water diversion port can normally conduct water diversion irrigation;
water diversion gate: the water diversion branch channel is positioned on the water diversion branch channel, is opened when the water diversion port has a water diversion demand, and is closed when the water diversion port does not have the water diversion demand;
a water withdrawal gate: is positioned on the water-returning canal and is opened when the water-abandoning needs to be returned to the river.
The gate group scheduling is an indispensable part in the process of water delivery and distribution in an irrigation district, at present, for example, in a river sleeve irrigation district, an inner Mongolia yellow river south river bank irrigation district and the like, a scheduling mode of manually controlling the gate groups is mostly adopted, namely, a mode that users report irrigation water consumption and manually control gates at all levels meets requirements of irrigation water at all levels as much as possible, and redundant water in scheduling returns through a water return channel. However, the manual scheduling mode has low precision and insufficient execution force, and improper scheduling in the water delivery and distribution process can cause that part of cultivated land can not be sufficiently irrigated and water can be abandoned, thereby causing waste of water resources; irrigation scale of an irrigation area is large, irrigation channels are long, gate groups are multiple, water consumption is complex, certain difficulty is inevitably brought to manual scheduling of the gate groups, a gate group scheduling mode of accurate water delivery and distribution is difficult to achieve, and influence on a water taking and returning process is inevitably caused. With the rapid growth of population and economy, the demand of food is continuously increased, which directly leads to the continuous aggravation of the contradiction between water resource supply and demand, and the low utilization efficiency of water resource seriously hinders the healthy development of agricultural production.
Disclosure of Invention
Aiming at the problems of low precision and insufficient execution force existing in the scheduling mode of the existing manual control gate group, the improper scheduling of the water transmission and distribution process can cause that partial cultivated land can not be fully irrigated, and water abandon can be generated, so that the waste of water resources is caused; and the problem that the gate group dispatching mode of accurate water transmission and distribution is difficult to realize is solved, and a method and a system for jointly dispatching the water transmission and distribution gate group in an irrigation area are provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a combined dispatching method for a water distribution gate group in an irrigation area, which comprises the following steps:
step 1: acquiring basic parameters required by scheduling, wherein the basic parameters comprise the safety fall of a gate of a check gate, a normal operation water level interval, the water distribution water level of a water distribution gate, the water distribution requirements of branch channels and the minimum operation flow of a main channel water intake;
step 2: constructing a canal system water transmission and distribution model based on a one-dimensional hydrodynamic model;
and step 3: respectively setting scheduling rules according to different types of gates based on the obtained basic parameters and the constructed canal system water transmission and distribution model;
and 4, step 4: and simulating the diversion process of the main canal water intake based on the set dispatching rule, and determining the final diversion process.
Further, the one-dimensional hydrodynamic model is a Mike11 one-dimensional hydrodynamic model.
Further, the step 3 comprises:
judging whether the water level drop at the junction is lower than the safety drop or not, and if not, opening a check gate; if yes, further judging whether a water distribution requirement exists at the junction;
if the water level drop at the pivot is not lower than the safety drop, the check gate is opened, and the pivot requires water diversion, further judging whether the upstream water level is lower than the water diversion water level, if not, opening the water diversion gate and the water return gate, and if so, closing the water diversion gate;
if the water level fall at the hub is not lower than the safety fall, the check gate is opened, and the water diversion demand does not exist at the hub, the water diversion gate is closed, and the water withdrawal gate is opened;
if the water level drop at the junction is lower than the safety drop and the water diversion requirement is met at the junction, further judging whether the upstream water level is higher than the normal operation water level, if so, opening a check gate and a water diversion gate, judging whether the water quantity is smaller than the water diversion requirement of a downstream branch channel, if not, keeping the gate height of a water return gate unchanged, and if so, closing the water return gate;
if the water level drop at the junction is lower than the safety drop, the water diversion requirement is set at the junction, and the upstream water level is in the normal operation water level interval, the gate height of the control gate is unchanged, whether the upstream water level is higher than the water diversion water level is further judged, and if the upstream water level is lower than the water diversion water level, the water diversion gate is closed; if the upstream water level is not lower than the water diversion water level, opening a water diversion gate, further judging whether the water quantity is smaller than the water diversion requirement of the downstream branch channel, if so, closing a water return gate, if not, judging whether the water diversion quantity of the head of the channel is smaller than the minimum operation flow quantity, if not, keeping the gate height of the water return gate unchanged, and if so, closing the water return gate;
if the water level fall at the junction is lower than the safety fall, the water diversion requirement is met at the junction, and the water level at the upstream is lower than the normal operation water level, closing the check gate and the water diversion gate;
if the water level drop at the junction is lower than the safety drop and no water diversion demand exists at the junction, opening a check gate, closing the water diversion gate, further judging whether the water quantity is less than the water diversion demand of the downstream branch channel, and if so, closing a water return gate; if not, further judging whether the water diversion quantity of the canal head is smaller than the minimum running flow, if not, keeping the gate height of the water-withdrawing gate unchanged, and if so, closing the water-withdrawing gate.
The invention provides a combined dispatching system for a water distribution gate group in an irrigation area, which comprises:
the basic parameter acquisition module is used for acquiring basic parameters required by scheduling, wherein the basic parameters comprise the safety fall of a gate of the control gate, a normal operation water level interval, the water diversion water level of a water diversion gate, the water diversion requirements of branch channels and the minimum operation flow of a main channel water intake;
the model construction module is used for constructing a canal system water transmission and distribution model based on a one-dimensional hydrodynamic model;
the scheduling rule setting module is used for respectively setting scheduling rules according to different types of gates on the basis of the acquired basic parameters and the constructed canal system water transmission and distribution model;
and the diversion simulation module is used for simulating the diversion process of the main canal water intake based on the set scheduling rule and determining the final diversion process.
Further, the one-dimensional hydrodynamic model is a Mike11 one-dimensional hydrodynamic model.
Further, the scheduling rule setting module is specifically configured to:
judging whether the water level drop at the junction is lower than the safety drop or not, and if not, opening a check gate; if yes, further judging whether a water distribution requirement exists at the junction;
if the water level drop at the pivot is not lower than the safety drop, the check gate is opened, and the pivot requires water diversion, further judging whether the upstream water level is lower than the water diversion water level, if not, opening the water diversion gate and the water return gate, and if so, closing the water diversion gate;
if the water level fall at the hub is not lower than the safety fall, the check gate is opened, and the water diversion demand does not exist at the hub, the water diversion gate is closed, and the water withdrawal gate is opened;
if the water level drop at the junction is lower than the safety drop and the water diversion requirement is met at the junction, further judging whether the upstream water level is higher than the normal operation water level, if so, opening a check gate and a water diversion gate, judging whether the water quantity is smaller than the water diversion requirement of a downstream branch channel, if not, keeping the gate height of a water return gate unchanged, and if so, closing the water return gate;
if the water level drop at the junction is lower than the safety drop, the junction has a water diversion demand, and the upstream water level is in the normal operation water level interval, the gate height of the check gate is unchanged, whether the upstream water level is higher than the water diversion water level is further judged, and if the upstream water level is lower than the water diversion water level, the water diversion gate is closed; if the upstream water level is not lower than the water diversion water level, a water diversion gate is opened, whether the water quantity is smaller than the water diversion requirement of the downstream branch channel is further judged, if yes, a water return gate is closed, if not, whether the water diversion quantity of the channel head is smaller than the minimum operation flow is judged, if not, the gate height of the water return gate is unchanged, and if yes, the water return gate is closed;
if the water level drop at the junction is lower than the safety drop, the water diversion requirement is met at the junction, and the upstream water level is lower than the normal operation water level, the control gate and the water diversion gate are closed;
if the water level drop at the junction is lower than the safety drop and no water diversion demand exists at the junction, opening a check gate, closing the water diversion gate, further judging whether the water quantity is less than the water diversion demand of the downstream branch channel, and if so, closing a water return gate; if not, further judging whether the water diversion quantity of the canal head is smaller than the minimum running flow, if not, keeping the gate height of the water-withdrawing gate unchanged, and if so, closing the water-withdrawing gate.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a set of efficient, sound, practical and specific gate group joint scheduling method, which can be applied to informatization and automation construction of an irrigation area, replaces the traditional manual scheduling mode and realizes the fine management of the irrigation area. According to the water supply condition, the gate group executes according to the rule set by the scheduling mode, the water diversion and the water return are mutually matched, the irrigation area can realize the scheduling operation mode of precise water delivery and distribution, the requirements of agricultural irrigation, building water passing safety and the like are met, the generation of redundant abandoned water is avoided, and the limited water resource is efficiently distributed and utilized.
Drawings
FIG. 1 is a schematic diagram of a canal system and a gate distribution in an irrigation area according to an embodiment of the present invention;
FIG. 2 is a basic flowchart of a method for jointly scheduling water distribution gate groups in an irrigation area according to an embodiment of the present invention;
FIG. 3 is an example of a Mike11 software interface employed in embodiments of the present invention;
FIG. 4 is a flowchart illustrating a precise gate group scheduling process according to an embodiment of the present invention;
FIG. 5 is a flow chart of a simulation trial calculation according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating the normal operation of the check gate according to the embodiment of the present invention;
FIG. 7 is a schematic diagram of a channel distribution of a model constructed according to an embodiment of the present invention;
FIG. 8 is an exemplary diagram of a final priming process according to an embodiment of the present invention;
fig. 9 is a schematic diagram of an architecture of a combined dispatching system of a water distribution gate group in an irrigation area according to an embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the drawings and the accompanying drawings:
as shown in fig. 2, a method for jointly scheduling a water distribution gate group in an irrigation area includes:
step 1: basic parameters required by scheduling are obtained, wherein the basic parameters comprise the safety fall of a gate of a check gate, a normal operation water level interval, the water diversion water level of a water diversion gate, the water diversion demand of a branch channel and the minimum operation flow of a main channel water intake;
step 2: constructing a canal system water transmission and distribution model based on a one-dimensional hydrodynamic model;
and step 3: respectively setting scheduling rules according to different types of gates based on the obtained basic parameters and the constructed canal system water transmission and distribution model;
and 4, step 4: and simulating the diversion process of the main canal water intake based on the set dispatching rule to determine the final diversion process.
Specifically, the step 1 includes:
the gate and the channel are hydraulic buildings, and different types have respective basic operation parameters. For the check gate, basic parameters comprise the safe fall of the gate and the normal operation water level interval; for the water diversion gate, basic parameters comprise a water diversion water level and the water diversion requirements of branch channels; for the water outlet gate, necessary water drainage is mainly carried out by matching the check gate with the water distribution gate; in addition, considering the safety factor of the main diversion channel, generally, in order to prevent channel siltation, the minimum operation flow is set at the water intake, and the water diversion amount of the water intake during stable operation must be larger than the minimum operation flow. The method for acquiring and identifying each parameter is shown in table 1.
Table 1 basic parameter acquisition and identification method
The safety fall of the check gate, the water dividing level of the water dividing gate and the minimum running flow of a water intake are design parameters of a building and need to be acquired from a gate management unit or identified through a design report; the water distribution requirement of the branch channel is the irrigation water demand of the corresponding cultivated land, and the water distribution requirement needs to be obtained by statistics from users; the normal operation water level interval of check gate represents the water level when guaranteeing the normal diversion of distributive aspect and irrigates, for a certain water level interval, needs to pass through regimen discernment.
Further, the step 2 comprises:
as an implementation, the one-dimensional hydrodynamic model is a Mike11 one-dimensional hydrodynamic model (the software interface is shown in fig. 3). On the basis, a scalar dissipation finite volume method of a full hidden time format is adopted to calculate the scalar dissipation finite volume method, and simulation of multiple processes such as water diversion, water delivery and distribution, field irrigation and the like under the constraint of complex regulation and control intervention (gates) is realized. The method comprises the steps of constructing a canal system water delivery and distribution model, solving a Saint-Venant (Saint-Venant) equation set by adopting a 6-point Abbott-Ionescu finite difference format, wherein the Saint-Venant equation set mainly comprises a continuous equation and a momentum equation, the continuous equation mainly reflects a conservation law of mass, and the momentum equation mainly reflects a conservation law of momentum.
The continuous equation:
the momentum equation:
in the formula: x is a distance coordinate, t is a time coordinate, A is a water passing section area, Q is flow, Z is water level, Q is lateral inflow, C is a competence coefficient, R is a hydraulic radius, g is gravity acceleration, and alpha is a momentum correction coefficient.
Specifically, the step 3 includes:
and (4) respectively setting dispatching rules according to different types of the gate, wherein the main operation modes of the gate are opening and closing, and the gate height is unchanged. The basic principle of operation of each type of gate is shown in table 2.
TABLE 2 accurate scheduling philosophy for gate groups
According to the basic principle, the gate group precision joint scheduling process is shown in fig. 4, and specifically includes:
judging whether the water level drop at the pivot is lower than the safety drop or not, and if not, opening a check gate; if yes, further judging whether a water distribution requirement exists at the junction;
if the water level drop at the pivot is not lower than the safety drop, the check gate is opened, and the pivot requires water diversion, further judging whether the upstream water level is lower than the water diversion water level, if not, opening the water diversion gate and the water return gate, and if so, closing the water diversion gate;
if the water level drop at the pivot is not lower than the safety drop, the check gate is opened, and the pivot has no water diversion demand, the water diversion gate is closed, and the water outlet gate is opened;
if the water level drop at the junction is lower than the safety drop and the water diversion requirement is met at the junction, further judging whether the upstream water level is higher than the normal operation water level, if so, opening a check gate and a water diversion gate, judging whether the water quantity is smaller than the water diversion requirement of a downstream branch channel, if not, keeping the gate height of a water return gate unchanged, and if so, closing the water return gate;
if the water level drop at the junction is lower than the safety drop, the water diversion requirement is set at the junction, and the upstream water level is in the normal operation water level interval, the gate height of the control gate is unchanged, whether the upstream water level is higher than the water diversion water level is further judged, and if the upstream water level is lower than the water diversion water level, the water diversion gate is closed; if the upstream water level is not lower than the water diversion water level, opening a water diversion gate, further judging whether the water quantity is smaller than the water diversion requirement of the downstream branch channel, if so, closing a water return gate, if not, judging whether the water diversion quantity of the head of the channel is smaller than the minimum operation flow quantity, if not, keeping the gate height of the water return gate unchanged, and if so, closing the water return gate;
if the water level drop at the junction is lower than the safety drop, the water diversion requirement is met at the junction, and the upstream water level is lower than the normal operation water level, the control gate and the water diversion gate are closed;
if the water level drop at the junction is lower than the safety drop and no water diversion demand exists at the junction, opening a check gate, closing a water diversion gate, further judging whether the water quantity is less than the water diversion demand of a downstream branch channel, and if so, closing a water withdrawal gate; if not, further judging whether the water diversion quantity of the canal head is smaller than the minimum running flow, if not, the gate height of the water return gate is unchanged, and if so, closing the water return gate.
Parameters such as safety fall, water distribution requirement, normal operation water level, water distribution water level, minimum operation flow and the like related in the scheduling rule are all the basic parameters acquired and identified in the step 1, and the scheduling rule needs to be arranged in the water delivery and distribution model constructed in the step 2.
Specifically, according to the method, after the water delivery and distribution model is constructed and the scheduling rule is set, the water diversion process of the water intake is required to be trial-calculated for multiple times, and the final water diversion process is determined until the water diversion process meets the safety requirement (minimum operation flow), the irrigation water diversion requirement and no redundant water abandon, and the general initial water diversion process can be determined by referring to the actual water diversion process in the past year. The simulation trial flow chart is shown in fig. 5.
To verify the effect of the invention, the following applications are carried out:
the method is applied to a river-cover irrigation area, firstly basic parameters for identifying a building are obtained, three parameters including the safety fall of a check gate, the diversion water level of the diversion gate and the minimum operation flow of a water intake are obtained, and the basic parameters are obtained by reading a related design report; the water distribution requirements of the branch channels are obtained by counting from users; the normal operation water level interval of the check gate is identified through actual water regime. Taking the second hub of the river-cover irrigation area as an example, the normal irrigation time of the irrigation area is from ten days of 4 to ten days of 8, from ten days of 9 to ten days of 11, the stable water level range maintained at the upstream of the regulating gate during the irrigation period is the normal operation water level interval (shown in fig. 6), and the acquired and identified basic parameters of the second hub are shown in table 3.
TABLE 3 second Pivot base parameters
A canal system distribution schematic diagram of a water distribution model of the river-cover irrigation area constructed based on the Mike11 one-dimensional hydrodynamic model is shown in figure 7, and the river-cover irrigation area is provided with 4 pivots, 9 branch canals and 3 water discharge canals.
The water distribution rule of the gate group is set in the canal system water transportation and distribution model, and the actual water diversion amount is 46.23 hundred million m 3 Taking an actual process as an initial water diversion process, and continuously adjusting according to a trial calculation flow until the water diversion process meets the minimum operation flow of 200m 3 The water diversion requirements of 9 branch canals and no generation of redundant waste water determine the final water diversion process, and the water diversion amount is 46.04 hundred million m 3 See fig. 8.
Finally, the dispatching rule provided by the invention is applied to a water delivery and distribution model of a river sleeve irrigation area, and the water can be saved by 0.19 hundred million m compared with the actual situation 3 And the requirements of agricultural irrigation, building water safety and the like are met, and compared with the conventional manual scheduling mode, the scheduling method is higher in efficiency and more accurate in scheduling process.
The scheduling method can be applied to the informatization and automation construction of the irrigation area, replaces the traditional manual scheduling mode of the gate group, avoids the problem of low manual scheduling precision, can save the labor cost, realizes the automation, mechanization and refinement management of the irrigation area, and has better practical effect and application value.
As shown in fig. 9, another aspect of the present invention provides a system for jointly scheduling water distribution floodgate groups in an irrigation area, including:
the basic parameter acquisition module is used for acquiring basic parameters required by scheduling, wherein the basic parameters comprise the safety fall of a gate of the control gate, a normal operation water level interval, the water diversion water level of a water diversion gate, the water diversion requirements of branch channels and the minimum operation flow of a main channel water intake;
the model construction module is used for constructing a canal system water transmission and distribution model based on a one-dimensional hydrodynamic model;
the scheduling rule setting module is used for respectively setting scheduling rules according to different types of gates on the basis of the acquired basic parameters and the constructed canal system water transmission and distribution model;
and the diversion simulation module is used for simulating the diversion process of the main canal water intake based on the set scheduling rule and determining the final diversion process.
Further, the one-dimensional hydrodynamic model is a Mike11 one-dimensional hydrodynamic model.
Further, the scheduling rule setting module is specifically configured to:
judging whether the water level drop at the pivot is lower than the safety drop or not, and if not, opening a check gate; if yes, further judging whether a water distribution requirement exists at the junction;
if the water level drop at the pivot is not lower than the safety drop, the check gate is opened, and the pivot requires water diversion, further judging whether the upstream water level is lower than the water diversion water level, if not, opening the water diversion gate and the water return gate, and if so, closing the water diversion gate;
if the water level drop at the pivot is not lower than the safety drop, the check gate is opened, and the pivot has no water diversion demand, the water diversion gate is closed, and the water outlet gate is opened;
if the water level drop at the junction is lower than the safety drop and the water distribution requirement is met at the junction, further judging whether the upstream water level is higher than the normal operating water level, if so, opening a check gate and a water distribution gate, and judging whether the water quantity is smaller than the water distribution requirement of a downstream branch channel, if not, keeping the gate height of a water return gate unchanged, and if so, closing the water return gate;
if the water level drop at the junction is lower than the safety drop, the water diversion requirement is set at the junction, and the upstream water level is in the normal operation water level interval, the gate height of the control gate is unchanged, whether the upstream water level is higher than the water diversion water level is further judged, and if the upstream water level is lower than the water diversion water level, the water diversion gate is closed; if the upstream water level is not lower than the water diversion water level, a water diversion gate is opened, whether the water quantity is smaller than the water diversion requirement of the downstream branch channel is further judged, if yes, a water return gate is closed, if not, whether the water diversion quantity of the channel head is smaller than the minimum operation flow is judged, if not, the gate height of the water return gate is unchanged, and if yes, the water return gate is closed;
if the water level fall at the junction is lower than the safety fall, the water diversion requirement is met at the junction, and the water level at the upstream is lower than the normal operation water level, closing the check gate and the water diversion gate;
if the water level drop at the junction is lower than the safety drop and no water diversion demand exists at the junction, opening a check gate, closing the water diversion gate, further judging whether the water quantity is less than the water diversion demand of the downstream branch channel, and if so, closing a water return gate; if not, further judging whether the water diversion quantity of the canal head is smaller than the minimum running flow, if not, the gate height of the water return gate is unchanged, and if so, closing the water return gate.
In summary, the invention provides a set of efficient, sound, practical and specific gate group joint scheduling method, and the scheduling method can be applied to the informatization and automation construction of the irrigation area, replaces the traditional manual scheduling mode, and realizes the fine management of the irrigation area. According to the water supply condition, the gate group executes according to the rule set by the scheduling mode, the water diversion and the water return are mutually matched, the irrigation area can realize the scheduling operation mode of precise water delivery and distribution, the requirements of agricultural irrigation, building water passing safety and the like are met, the generation of redundant abandoned water is avoided, and the limited water resource is efficiently distributed and utilized.
The above shows only the preferred embodiments of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (6)
1. A method for jointly scheduling a water conveying and distributing gate group in an irrigation area is characterized by comprising the following steps:
step 1: acquiring basic parameters required by scheduling, wherein the basic parameters comprise the safety fall of a gate of a check gate, a normal operation water level interval, the water distribution water level of a water distribution gate, the water distribution requirements of branch channels and the minimum operation flow of a main channel water intake;
and 2, step: constructing a canal system water transmission and distribution model based on a one-dimensional hydrodynamic model;
and step 3: based on the obtained basic parameters and the constructed canal system water transmission and distribution model, respectively setting scheduling rules according to different types of gates;
and 4, step 4: and simulating the diversion process of the main canal water intake based on the set dispatching rule to determine the final diversion process.
2. The irrigation area water delivery and distribution gate group joint scheduling method according to claim 1, wherein the one-dimensional hydrodynamic model is a Mike11 one-dimensional hydrodynamic model.
3. The irrigation district water distribution gate group joint scheduling method of claim 1, wherein the step 3 comprises:
judging whether the water level drop at the pivot is lower than the safety drop or not, and if not, opening a check gate; if yes, further judging whether a water distribution requirement exists at the junction;
if the water level drop at the pivot is not lower than the safety drop, the check gate is opened, and the pivot requires water diversion, further judging whether the upstream water level is lower than the water diversion water level, if not, opening the water diversion gate and the water return gate, and if so, closing the water diversion gate;
if the water level fall at the hub is not lower than the safety fall, the check gate is opened, and the water diversion demand does not exist at the hub, the water diversion gate is closed, and the water withdrawal gate is opened;
if the water level drop at the junction is lower than the safety drop and the water distribution requirement is met at the junction, further judging whether the upstream water level is higher than the normal operating water level, if so, opening a check gate and a water distribution gate, and judging whether the water quantity is smaller than the water distribution requirement of a downstream branch channel, if not, keeping the gate height of a water return gate unchanged, and if so, closing the water return gate;
if the water level drop at the junction is lower than the safety drop, the water diversion requirement is set at the junction, and the upstream water level is in the normal operation water level interval, the gate height of the control gate is unchanged, whether the upstream water level is higher than the water diversion water level is further judged, and if the upstream water level is lower than the water diversion water level, the water diversion gate is closed; if the upstream water level is not lower than the water diversion water level, opening a water diversion gate, further judging whether the water quantity is smaller than the water diversion requirement of the downstream branch channel, if so, closing a water return gate, if not, judging whether the water diversion quantity of the head of the channel is smaller than the minimum operation flow quantity, if not, keeping the gate height of the water return gate unchanged, and if so, closing the water return gate;
if the water level drop at the junction is lower than the safety drop, the water diversion requirement is met at the junction, and the upstream water level is lower than the normal operation water level, the control gate and the water diversion gate are closed;
if the water level drop at the junction is lower than the safety drop and no water diversion demand exists at the junction, opening a check gate, closing a water diversion gate, further judging whether the water quantity is less than the water diversion demand of a downstream branch channel, and if so, closing a water withdrawal gate; if not, further judging whether the water diversion quantity of the canal head is smaller than the minimum running flow, if not, keeping the gate height of the water-withdrawing gate unchanged, and if so, closing the water-withdrawing gate.
4. The utility model provides an irrigated area water delivery floodgate crowd combined dispatching system which characterized in that includes:
the basic parameter acquisition module is used for acquiring basic parameters required by scheduling, wherein the basic parameters comprise the safety fall of a gate of the control gate, a normal operation water level interval, the water diversion water level of a water diversion gate, the water diversion requirements of branch channels and the minimum operation flow of a main channel water intake;
the model construction module is used for constructing a canal system water transmission and distribution model based on a one-dimensional hydrodynamic model;
the scheduling rule setting module is used for respectively setting scheduling rules according to different types of gates based on the acquired basic parameters and the constructed canal system water transmission and distribution model;
and the diversion simulation module is used for simulating the diversion process of the main canal water intake based on the set scheduling rule and determining the final diversion process.
5. The system of claim 4, wherein the one-dimensional hydrodynamic model is a Mike11 one-dimensional hydrodynamic model.
6. The irrigation area water delivery and distribution gate group joint scheduling system of claim 4, wherein the scheduling rule setting module is specifically configured to:
judging whether the water level drop at the pivot is lower than the safety drop or not, and if not, opening a check gate; if yes, further judging whether a water distribution requirement exists at the junction;
if the water level fall at the junction is not lower than the safety fall, the check gate is opened, and the junction has a water diversion requirement, further judging whether the upstream water level is lower than the water diversion level, if not, opening the water diversion gate and the water withdrawal gate, and if so, closing the water diversion gate;
if the water level fall at the hub is not lower than the safety fall, the check gate is opened, and the water diversion demand does not exist at the hub, the water diversion gate is closed, and the water withdrawal gate is opened;
if the water level drop at the junction is lower than the safety drop and the water diversion requirement is met at the junction, further judging whether the upstream water level is higher than the normal operation water level, if so, opening a check gate and a water diversion gate, judging whether the water quantity is smaller than the water diversion requirement of a downstream branch channel, if not, keeping the gate height of a water return gate unchanged, and if so, closing the water return gate;
if the water level drop at the junction is lower than the safety drop, the water diversion requirement is set at the junction, and the upstream water level is in the normal operation water level interval, the gate height of the control gate is unchanged, whether the upstream water level is higher than the water diversion water level is further judged, and if the upstream water level is lower than the water diversion water level, the water diversion gate is closed; if the upstream water level is not lower than the water diversion water level, opening a water diversion gate, further judging whether the water quantity is smaller than the water diversion requirement of the downstream branch channel, if so, closing a water return gate, if not, judging whether the water diversion quantity of the head of the channel is smaller than the minimum operation flow quantity, if not, keeping the gate height of the water return gate unchanged, and if so, closing the water return gate;
if the water level drop at the junction is lower than the safety drop, the water diversion requirement is met at the junction, and the upstream water level is lower than the normal operation water level, the control gate and the water diversion gate are closed;
if the water level drop at the junction is lower than the safety drop and no water diversion demand exists at the junction, opening a check gate, closing the water diversion gate, further judging whether the water quantity is less than the water diversion demand of the downstream branch channel, and if so, closing a water return gate; if not, further judging whether the water diversion quantity of the canal head is smaller than the minimum running flow, if not, the gate height of the water return gate is unchanged, and if so, closing the water return gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634543.3A CN115169803A (en) | 2022-06-07 | 2022-06-07 | Irrigation district water transmission and distribution gate group combined scheduling method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634543.3A CN115169803A (en) | 2022-06-07 | 2022-06-07 | Irrigation district water transmission and distribution gate group combined scheduling method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115169803A true CN115169803A (en) | 2022-10-11 |
Family
ID=83485990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210634543.3A Pending CN115169803A (en) | 2022-06-07 | 2022-06-07 | Irrigation district water transmission and distribution gate group combined scheduling method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115169803A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116415526A (en) * | 2023-04-07 | 2023-07-11 | 中国水利水电科学研究院 | Irrigation area canal network water delivery and distribution optimization regulation method based on hydrodynamic simulation |
| CN117454784A (en) * | 2023-10-07 | 2024-01-26 | 珠江水利委员会珠江水利科学研究院 | Water gate tide-blocking and waterlogging-draining joint scheduling dimension-reducing method, system and storage medium |
-
2022
- 2022-06-07 CN CN202210634543.3A patent/CN115169803A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116415526A (en) * | 2023-04-07 | 2023-07-11 | 中国水利水电科学研究院 | Irrigation area canal network water delivery and distribution optimization regulation method based on hydrodynamic simulation |
| CN116415526B (en) * | 2023-04-07 | 2024-05-07 | 中国水利水电科学研究院 | Irrigation area canal network water delivery and distribution optimization regulation method based on hydrodynamic simulation |
| CN117454784A (en) * | 2023-10-07 | 2024-01-26 | 珠江水利委员会珠江水利科学研究院 | Water gate tide-blocking and waterlogging-draining joint scheduling dimension-reducing method, system and storage medium |
| CN117454784B (en) * | 2023-10-07 | 2024-06-11 | 珠江水利委员会珠江水利科学研究院 | Water gate tide-blocking and waterlogging-draining joint scheduling dimension-reducing method, system and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115169803A (en) | Irrigation district water transmission and distribution gate group combined scheduling method and system | |
| CN111125969B (en) | Cross-reservoir basin river runoff calculation method and system | |
| CN108764573B (en) | Inland arid region-oriented multidimensional equilibrium configuration system for water resources | |
| Yakowitz | Dynamic programming applications in water resources | |
| CN107506909B (en) | Cascade reservoir hydropower station group scheduling control system and method for fish habitat protection | |
| CN103544533B (en) | A kind of water diversion project water resource optimal allocation dynamic model constructing system | |
| CN105913146B (en) | Southern wet area water resource optimal allocation system | |
| CN110555239B (en) | River surge sluice optimization scheduling method based on drainage pipe network model | |
| Merritt et al. | Computer-based optimal design of sewer systems | |
| CN112785087B (en) | Water flow optimization scheduling plan compilation method for cross-basin water transfer project with hydraulic response characteristics considered | |
| CN106228276A (en) | Single pumping plant list water reservoir system water resource optimal allocation method of canal is directly mended under the conditions of insufficient irrigation | |
| CN114358664B (en) | Flood scheduling and water resource guaranteeing method under conditions of changing environment and torrent and drought and torrent | |
| CN113449993B (en) | Urban water source water supply scheduling method | |
| CN112215461A (en) | Long-distance water diversion project water delivery scheduling state analysis and early warning system | |
| CN115907536B (en) | Reservoir characteristic curve correction method based on interval spurious rate | |
| CN113779671B (en) | Open channel water transfer engineering hydrodynamic force real-time calculation method based on space-time step length self-adaptive technology | |
| Tariq et al. | Improving operational performance of farmers managed distributary canal using SIC hydraulic model | |
| Duckstein et al. | Multicriterion analysis of hydropower operation | |
| CN109919397A (en) | Drain flooded fields capacity verification optimization method for river network in plain areas | |
| Fan et al. | Water distribution and scheduling model of an irrigation canal system | |
| CN116822180A (en) | Integral time-lag model parameter identification method for simulating river and canal water delivery process | |
| CN112482488B (en) | Urban peak shifting water supply method and system | |
| Wu et al. | Multi-objective model of irrigation water distribution based on particle swarm optimization | |
| CN112464992B (en) | Water quantity distribution method and system based on ecological gate characteristics | |
| CN103473716B (en) | Heterogeneous module adopts the step Navigation & Hydropower Junction Engineering Optimal Scheduling of Standardization Communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |