A reservoir group management control system and method
By using reservoir group management and control methods, and by regulating the water level and flow of upstream and downstream reservoirs, the coordinated silt removal of multiple reservoirs is achieved, which solves the problem of siltation in the reservoir group and improves the effective storage capacity and stability of the reservoirs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YUNNAN WATER INVESTMENT INFORMATION TECHNOLOGY CO LTD
- Filing Date
- 2026-03-05
- Publication Date
- 2026-06-26
AI Technical Summary
The reservoir group suffers from severe siltation. Existing technologies for silt removal during the flood season are limited in time and have poor stability, affecting the effective storage capacity and safe operation of the reservoirs.
By obtaining the sediment content of each reservoir in the reservoir group, and by controlling the water level and regulating the outflow of the upstream and downstream reservoirs, a graded sediment removal operation is carried out, including lowering the water level, opening the bottom discharge outlet, and adjusting the outflow, so as to achieve coordinated sediment treatment of multiple reservoirs.
Even during non-flood seasons, it can effectively reduce siltation, increase the effective storage capacity of reservoirs, enhance the stability of reservoir groups, reduce the impact of water shortage in downstream reservoirs, and extend the time limit for silt removal.
Smart Images
Figure CN122284403A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water conservancy facilities technology, specifically to a reservoir group management and control system and method. Background Technology
[0002] Reservoirs serve multiple important functions, including flood control, irrigation, water supply, and power generation. However, the management and control of reservoir groups face numerous challenges. With the continuous growth of water resource demand and the impact of climate change, the problem of siltation in reservoir groups is becoming increasingly serious. This not only reduces the effective storage capacity of reservoirs and lowers their overall benefits but may also affect their safe operation.
[0003] Currently, the main method relies on the flood season to flush away sediment from the reservoir using large inflow rates, followed by opening the bottom discharge outlets to remove sediment. However, this method has a short timeframe for sediment removal and poor stability. Summary of the Invention
[0004] The present application provides a reservoir group management and control system and method that can stably reduce siltation in reservoirs and improve the effective storage capacity of reservoirs.
[0005] The specific technical solution of this embodiment is as follows:
[0006] On the one hand, embodiments of this application provide a reservoir group management and control method, including:
[0007] S10. Obtain the sediment content of all reservoirs in a set of reservoirs;
[0008] S20. When it is determined that the sediment content of one of the reservoirs exceeds the first sediment preset value, the reservoir is designated as the first reservoir, an upstream reservoir of the first reservoir is designated as the second reservoir, and an upstream reservoir of the second reservoir is designated as the third reservoir. Sediment cleaning operation is carried out based on the second reservoir and the third reservoir.
[0009] The silt removal operation includes the following steps:
[0010] S201, Control the lowering of the water level in the first reservoir;
[0011] S202. When the water level of the first reservoir drops to the preset value of the first water level, the bottom sand discharge hole of the first reservoir is opened to increase the outflow of the second reservoir and flush the first reservoir.
[0012] S203. When the water level of the second reservoir drops below the first threshold range, control the opening of the bottom sand discharge outlet of the second reservoir and close the bottom sand discharge outlet of the first reservoir to increase the outflow of the third reservoir.
[0013] S204. When the water level of the third reservoir drops below the second threshold range, the bottom discharge outlet of the second reservoir is closed to reduce the outflow of water from the second and third reservoirs.
[0014] In some embodiments, controlling the reduction of the water level in the first reservoir includes the following steps:
[0015] S2011. When it is determined that the first reservoir is located in multiple upstream reservoirs, the water level of the first reservoir is lowered by reducing the outflow from only the second reservoir.
[0016] S2012. When it is determined that the first reservoir only exists in the upstream reservoir where the second reservoir is located, the water level of the first reservoir is lowered by reducing the outflow of the second reservoir.
[0017] In some embodiments, the process of reducing the outflow from the second reservoir also includes the following steps:
[0018] K10. Determine whether the water level in the second reservoir is higher than the first threshold range;
[0019] K20. When it is determined that the water level in the second reservoir is higher than the first threshold range, the outflow rate of the third reservoir is reduced so that the water level in the second reservoir remains within the first threshold range.
[0020] In some embodiments, when it is determined that the first reservoir contains multiple upstream reservoirs, after reducing the outflow from the third reservoir, the following steps are also included:
[0021] K30. Determine whether the water level in the third reservoir is higher than the second threshold range;
[0022] K40. When it is determined that the water level in the third reservoir is higher than the second threshold range, the outflow of water from the upstream reservoirs of the first reservoir (excluding the second reservoir) is reduced, and the water level of the second reservoir is kept within the first threshold range, and the water level of the third reservoir is kept within the first threshold range.
[0023] In some embodiments, in step S20, when the first reservoir includes multiple upstream reservoirs, the reservoir with the largest water storage capacity among the upstream reservoirs of the first reservoir is selected as the second reservoir; when the second reservoir includes multiple upstream reservoirs, the reservoir with the largest water storage capacity among the upstream reservoirs of the second reservoir is selected as the third reservoir.
[0024] In some embodiments, a group of reservoirs includes at least three successive levels of reservoirs, with the downstream reservoir of the reservoir with the largest water storage capacity upstream of the first reservoir serving as the uppermost reservoir, and the number of reservoir levels in the group of reservoirs is determined based on the uppermost reservoir.
[0025] In some embodiments, after the silt removal operation in the first reservoir, a water replenishment operation is also included, which includes the following steps:
[0026] S301. Increase the outflow of the upstream reservoir of the uppermost reservoir.
[0027] In some embodiments, the water replenishment operation further includes the following steps:
[0028] S302. Increase the outflow of all reservoirs in a group of reservoirs to the upstream reservoirs outside the group, and ensure that the water level of all reservoirs in the group does not exceed the upper limit of their respective threshold range.
[0029] On the other hand, embodiments of this application provide a reservoir group management and control system, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the reservoir group management and control method of any of the above embodiments.
[0030] Compared with the prior art, the embodiments of this application have the following beneficial effects:
[0031] The reservoir group management and control method provided in this application can utilize multiple reservoirs located upstream and downstream of the main sediment treatment line to treat sediment from multiple reservoirs in a single sediment treatment process. It can also reduce the impact of water shortages in downstream reservoirs after sediment treatment. Furthermore, this method does not rely on the flood season and can treat reservoir sediment even during the non-flood season, thereby extending the sediment removal time and improving the overall stability of the reservoir group. Attached Figure Description
[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0033] Figure 1 This is a flowchart illustrating a reservoir group management and control method provided in some embodiments of this application;
[0034] Figure 2 This is a partial flowchart illustrating a reservoir group management and control method provided in other embodiments of this application. Detailed Implementation
[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0036] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0037] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values may in practice be based on additional conditions or values beyond those stated.
[0038] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.
[0039] On the one hand, please refer to Figure 1 , Figure 1This is a flowchart illustrating a reservoir group management and control method provided in some embodiments of this application. The embodiments of this application provide a reservoir group management and control method, including the following steps:
[0040] S10. Obtain the sediment content of all reservoirs in a set of reservoirs.
[0041] In S10, a group of reservoirs includes multiple reservoirs in a designated area. These reservoirs can be directly or indirectly connected.
[0042] S20. When it is determined that the sediment content of one of the reservoirs exceeds the first sediment preset value, the reservoir is designated as the first reservoir, an upstream reservoir of the first reservoir is designated as the second reservoir, and an upstream reservoir of the second reservoir is designated as the third reservoir. Sediment cleaning operation is carried out based on the second reservoir and the third reservoir.
[0043] In S20, the sediment content in the reservoir can be obtained using existing technologies, such as by installing sediment content monitoring equipment to obtain data in real time in the reservoir, or by periodically collecting water samples for sediment content detection and analysis.
[0044] The initial sediment load value generally varies for different reservoirs. The upstream reservoir of the first reservoir refers to other reservoirs located upstream of and directly connected to the first reservoir. Similarly, the upstream reservoir of the second reservoir refers to other reservoirs located upstream of and directly connected to the second reservoir.
[0045] When it is determined that one reservoir in the group has a sediment content exceeding a preset first sediment value, that reservoir is designated as the first reservoir. The first reservoir may have one or more upstream reservoirs. If the first reservoir has only one upstream reservoir, that upstream reservoir is designated as the second reservoir; if the first reservoir has multiple upstream reservoirs, one of them is selected as the second reservoir. Similarly, the second reservoir may have one or more upstream reservoirs. If the second reservoir has only one upstream reservoir, that upstream reservoir is designated as the third reservoir; if the second reservoir has multiple upstream reservoirs, one of those upstream reservoirs is designated as the third reservoir.
[0046] In step S20, the silt removal operation includes the following steps:
[0047] S201. Control and lower the water level of the first reservoir.
[0048] In S201, the water level of the first reservoir can be lowered by reducing the inflow rate. Alternatively, the water level can be lowered by increasing the outflow rate. When lowering the inflow rate of the first reservoir to reduce its water level, if there is only one upstream reservoir, the water level can be lowered by reducing the outflow rate of that upstream reservoir. If there are multiple upstream reservoirs, the water level can be lowered by reducing the outflow rate of at least one upstream reservoir.
[0049] S202. When the water level of the first reservoir drops to the preset value of the first water level, the bottom sand discharge hole of the first reservoir is opened to increase the outflow of the second reservoir and flush the first reservoir.
[0050] In S202, the preset value of the first water level can be the lowest water level value of the first reservoir. For different reservoirs that serve as the first reservoir, the preset value of the first water level is usually different.
[0051] S203. When the water level of the second reservoir drops below the first threshold range, control the opening of the bottom sand discharge outlet of the second reservoir and close the bottom sand discharge outlet of the first reservoir to increase the outflow of the third reservoir.
[0052] In S203, the first threshold range includes multiple values enclosed by the preset minimum and maximum water level values of the second reservoir.
[0053] S204. When the water level of the third reservoir drops below the second threshold range, the bottom discharge outlet of the second reservoir is closed to reduce the outflow of water from the second and third reservoirs.
[0054] In S204, the second threshold range includes multiple values enclosed by the pre-set minimum and maximum water level values of the third reservoir.
[0055] In the above embodiment, when the sediment content in the first reservoir is high, exceeding a preset sediment level, the water level of the first reservoir is first lowered to the preset level. Then, the bottom discharge outlet of the first reservoir is opened, and the outflow from the second reservoir is increased to flush the first reservoir. This setup ensures that when the water level in the first reservoir drops to the preset level, the water flowing out of the second reservoir can better impact the sediment at the bottom of the first reservoir, thereby improving the sediment removal effect of the first reservoir.
[0056] When the water level in the second reservoir drops below the first threshold, the sediment discharge outlet of the second reservoir is opened, while the sediment discharge outlet of the first reservoir is closed, increasing the outflow from the third reservoir. This setup utilizes the lower water level after the second reservoir flushes the first reservoir, allowing the third reservoir to flush the second reservoir, thus removing sediment. Simultaneously, because the sediment discharge outlet of the first reservoir is closed, water flowing out of the second reservoir can be refilled into the first reservoir, replenishing it and reducing the impact of sediment removal on water levels in the first reservoir.
[0057] By utilizing the above-described embodiments, multiple reservoirs located upstream and downstream of the main sediment treatment line can be used to treat sediment from multiple reservoirs in a single sediment treatment process. This also reduces the impact of water shortages in downstream reservoirs after sediment treatment. Furthermore, this method does not rely on the flood season and can treat reservoir sediment even during the non-flood season, thereby extending the sediment removal time and improving the overall stability of the reservoir group.
[0058] In some embodiments, step S201, controlling the reduction of the water level in the first reservoir includes the following steps:
[0059] S2011. When it is determined that the first reservoir is located in multiple upstream reservoirs, the water level of the first reservoir is lowered by reducing the outflow from only the second reservoir.
[0060] In S2011, the outflow from the second reservoir is reduced, while the outflow from the other upstream reservoirs of the first reservoir remains unchanged. This lowers the water level in the first reservoir while simultaneously raising the water level in the second reservoir, thereby increasing the intensity of subsequent scouring of the first reservoir by the second reservoir. Conversely, keeping the outflow from the other upstream reservoirs of the first reservoir constant reduces the impact on those upstream reservoirs and prolongs the time it takes for the water level in the first reservoir to drop. This allows the second reservoir to store more water, further intensifying the subsequent scouring of the first reservoir.
[0061] S2012. When it is determined that the water entering the first reservoir is in the upstream reservoir where the second reservoir is located, the water level of the first reservoir is lowered by reducing the outflow of the second reservoir.
[0062] In S2012, by reducing the outflow from the second reservoir to lower the water level of the first reservoir, rather than increasing the outflow from the first reservoir, the water level of the first reservoir can be lowered for a longer period of time, thereby allowing the second reservoir to store more water and further increasing the intensity of the scouring of the first reservoir by the second reservoir in the subsequent process.
[0063] Through the above-described embodiments, when lowering the water level of the first reservoir, the outflow rate of the second reservoir can be flexibly reduced according to the different conditions of the upstream reservoirs. This ensures both an effective reduction in the water level of the first reservoir and sufficient water storage in the second reservoir for subsequent flushing of the first reservoir, thereby enhancing the flushing effect. Simultaneously, this approach reduces the impact on other upstream reservoirs of the first reservoir, improving the stability and effectiveness of reservoir group management.
[0064] In some of these embodiments, please refer to Figure 2 , Figure 2 This is a partial flowchart of a reservoir group management and control method provided in other embodiments of this application. In steps S2011 and S2012, during the process of reducing the outflow from the second reservoir, the following steps are also included:
[0065] K10. Determine whether the water level in the second reservoir is higher than the first threshold range.
[0066] The water level is above the first threshold range, meaning it exceeds the maximum value within the first threshold range. During the process of reducing the outflow from the second reservoir, the water level in the second reservoir will rise, and it is necessary to monitor the rise in water level in the second reservoir.
[0067] K20. When it is determined that the water level in the second reservoir is higher than the first threshold range, the outflow rate of the third reservoir is reduced so that the water level in the second reservoir remains within the first threshold range.
[0068] In K20, after reducing the outflow of the third reservoir, the outflow of the second reservoir can be adjusted to keep the water level in the second reservoir within the first threshold range. When the second reservoir has multiple upstream reservoirs, the outflow of the other upstream reservoirs (excluding the third reservoir) can also be adjusted.
[0069] With the above-described embodiments, during the process of the first reservoir's water level dropping, the second and third reservoirs can be simultaneously filled with water. While ensuring that the second reservoir does not exceed the first threshold range and the third reservoir does not exceed the second threshold range, the second and third reservoirs are filled with as much water as possible, so that the subsequent process of the second reservoir flushing the first reservoir with sediment and the third reservoir flushing the second reservoir with sediment are more intense.
[0070] In some of these embodiments, please continue to refer to Figure 2 When it is determined that the first reservoir is located in multiple upstream reservoirs, after reducing the outflow from the third reservoir, the following steps are also included:
[0071] K30. Determine whether the water level in the third reservoir is higher than the second threshold range.
[0072] In K30, "above the second threshold range" refers to the maximum value that is above the second threshold range.
[0073] K40. When it is determined that the water level in the third reservoir is higher than the second threshold range, the outflow of water from the upstream reservoirs of the first reservoir (excluding the second reservoir) is reduced, and the water level of the second reservoir is kept within the first threshold range, and the water level of the third reservoir is kept within the first threshold range.
[0074] With the settings of the above embodiments,
[0075] This allows for more precise control of the water levels in the reservoir group, preventing excessively high water levels from adversely affecting the reservoirs themselves and the surrounding environment. When the water level in the third reservoir is determined to be higher than the second threshold range, the outflow from the upstream reservoirs of the first reservoir (excluding the second reservoir) can be reduced to specifically regulate the reservoirs with excessively high water levels, while simultaneously controlling the water levels of the second and third reservoirs within a reasonable range.
[0076] In some embodiments, in step S20, when the first reservoir includes multiple upstream reservoirs, the reservoir with the largest water storage capacity among the upstream reservoirs of the first reservoir is selected as the second reservoir; when the second reservoir includes multiple upstream reservoirs, the reservoir with the largest water storage capacity among the upstream reservoirs of the second reservoir is selected as the third reservoir.
[0077] In the above embodiments, using a reservoir with a larger storage capacity as the second reservoir allows for a longer and more intense flushing time and more effective removal of silt from the first reservoir. Furthermore, because the second reservoir has a larger storage capacity, it retains more water after flushing the first reservoir, thus reducing the impact on the first reservoir. Similarly, using a reservoir with a larger storage capacity as the third reservoir yields similar results, which will not be elaborated further here.
[0078] In some embodiments, a group of reservoirs includes at least three successive levels of reservoirs, with the downstream reservoir of the reservoir with the largest water storage capacity upstream of the first reservoir serving as the uppermost reservoir, and the number of reservoir levels in the group of reservoirs determined based on the uppermost reservoir.
[0079] A three-tiered reservoir system, characterized by progressively increasing numbers, refers to a main reservoir system that includes at least a first-tier reservoir downstream, a second-tier reservoir upstream of the first-tier reservoir, and a third-tier reservoir upstream of the second-tier reservoir. A group of reservoirs can also include fourth-tier, fifth-tier, or even more tiers. Once the first reservoir is identified, in addition to the second and third reservoirs, a fourth, fifth, or even more reservoirs can be identified upstream of the third reservoir.
[0080] In the above embodiments, the downstream reservoir of the reservoir with the largest water demand among the upstream reservoirs of the first reservoir is taken as the top-level reservoir. Based on this top-level reservoir, the number of reservoir levels in a group of reservoirs is determined. This allows for the coordinated treatment of more reservoirs during the process of primarily scouring the first reservoir, thereby improving the overall stability of the reservoir group. Furthermore, by taking the downstream reservoir of the reservoir with the largest water demand among the upstream reservoirs of the first reservoir as the top-level reservoir, after the tiered silt removal operation is completed, the reservoir with the largest water storage capacity can replenish water to the reservoirs located on the downstream main line, thereby reducing the impact of water shortages in the downstream reservoirs after silt removal and further improving the overall stability of the reservoir group.
[0081] In some embodiments, after the silt removal operation in the first reservoir, a water replenishment operation is also included, which includes the following steps:
[0082] S301. Increase the outflow of the upstream reservoir of the uppermost reservoir.
[0083] The above-described configuration allows for the replenishment of water to the uppermost reservoir, raising its water level and providing a sufficient water source for subsequent replenishment to downstream reservoirs. Once the water level in the uppermost reservoir reaches a certain level, the water can be gradually transported to downstream reservoirs using the water level difference and the natural flow characteristics of the water.
[0084] In some embodiments, the water replenishment operation further includes the following steps:
[0085] S302. Increase the outflow of all reservoirs in a group of reservoirs to the upstream reservoirs outside the group, and ensure that the water level of all reservoirs in the group does not exceed the upper limit of their respective threshold range.
[0086] Upstream reservoirs outside the group refer to reservoirs outside the selected main line, that is, other upstream reservoirs that are directly connected to the first reservoir except for the second reservoir, other upstream reservoirs that are directly connected to the second reservoir except for the third reservoir, other upstream reservoirs that are directly connected to the third reservoir except for the fourth reservoir (when the fourth reservoir exists), and so on.
[0087] Through the above-described embodiments, multiple external water sources can be used to replenish a group of reservoirs, expanding the sources of water replenishment and further ensuring sufficient water supply for the reservoir group.
[0088] The reservoir group management and control method provided in this application monitors the sediment content of multiple reservoirs within a designated area. When the sediment content of one of the reservoirs exceeds a first preset sediment value, and there are at least two upstream reservoirs, the reservoir is designated as the first reservoir. The upstream reservoir with the largest water storage capacity (directly connected to the first reservoir) is selected as the second reservoir. The upstream reservoir with the largest water demand (directly connected to the second reservoir) is selected as the third reservoir. Then, based on this method, a fourth, fifth, or even more reservoirs can be found until the highest-level reservoir in the designated area is found. The route formed by these reservoirs is taken as the main route. The reservoir with the largest water storage capacity in the main route is selected as the reservoir for subsequent water replenishment. The downstream reservoir of the water replenishment reservoir in the main route is taken as the highest-level reservoir for this sediment treatment.
[0089] Then, the outflow from the second reservoir is controlled to store water in the second reservoir and lower the water level of the first reservoir. If the water level in the first reservoir does not fall below the first preset water level value, but the water level in the second reservoir exceeds the first threshold range, water is stored in the third reservoir; if the water level in the first reservoir does not reach the first preset water level value, but the water level in the third reservoir exceeds the second threshold range, water is stored in the fourth reservoir, and so on, until the water level in the first reservoir falls below the first preset water level value, at which point sediment removal is performed.
[0090] During the sediment removal operation, the sediment discharge bottom outlet of the first reservoir is first opened to increase the outflow of the second reservoir and flush the first reservoir. When the water level of the second reservoir drops to the first threshold range, the sediment discharge bottom outlet of the second reservoir is opened and the sediment discharge bottom outlet of the first reservoir is closed, increasing the outflow of the third reservoir and flushing the second reservoir. When the water level of the third reservoir drops to the second threshold range, the sediment discharge bottom outlet of the third reservoir is opened and the sediment discharge bottom outlet of the second reservoir is closed, increasing the outflow of the fourth reservoir, and so on, gradually removing sediment from the reservoirs and impounding water in the downstream reservoirs in stages.
[0091] After the silt is cleared, the outflow of the reservoir will be increased to replenish the downstream multi-stage reservoirs.
[0092] On the other hand, this application also provides a reservoir group management and control system, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the reservoir group management and control method of any of the above embodiments.
[0093] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A method for managing and controlling a group of reservoirs, characterized in that, include: S10. Obtain the sediment content of all reservoirs in a set of reservoirs; S20. When it is determined that the sediment content of one of the reservoirs exceeds the first sediment preset value, the reservoir is designated as the first reservoir, an upstream reservoir of the first reservoir is designated as the second reservoir, and an upstream reservoir of the second reservoir is designated as the third reservoir. Sediment cleaning operation is carried out based on the second reservoir and the third reservoir. The silt removal operation includes the following steps: S201, Control the lowering of the water level in the first reservoir; S202. When the water level of the first reservoir drops to the preset value of the first water level, the bottom sand discharge hole of the first reservoir is opened to increase the outflow of the second reservoir and flush the first reservoir. S203. When the water level of the second reservoir drops below the first threshold range, control the opening of the bottom sand discharge outlet of the second reservoir and close the bottom sand discharge outlet of the first reservoir to increase the outflow of the third reservoir. S204. When the water level of the third reservoir drops below the second threshold range, the bottom discharge outlet of the second reservoir is closed to reduce the outflow of water from the second and third reservoirs.
2. The reservoir group management and control method as described in claim 1, characterized in that, Controlling the lowering of the water level in the first reservoir includes the following steps: S2011. When it is determined that the first reservoir is located in multiple upstream reservoirs, the water level of the first reservoir is lowered by reducing the outflow from only the second reservoir. S2012. When it is determined that the first reservoir only exists in the upstream reservoir where the second reservoir is located, the water level of the first reservoir is lowered by reducing the outflow of the second reservoir.
3. The reservoir group management and control method as described in claim 2, characterized in that, The process of reducing the outflow from the second reservoir also includes the following steps: K10. Determine whether the water level in the second reservoir is higher than the first threshold range; K20. When it is determined that the water level in the second reservoir is higher than the first threshold range, the outflow rate of the third reservoir is reduced so that the water level in the second reservoir remains within the first threshold range.
4. The reservoir group management and control method as described in claim 3, characterized in that, When it is determined that the first reservoir is located in multiple upstream reservoirs, after reducing the outflow from the third reservoir, the following steps are also included: K30. Determine whether the water level in the third reservoir is higher than the second threshold range; K40. When it is determined that the water level in the third reservoir is higher than the second threshold range, the outflow of water from the upstream reservoirs of the first reservoir (excluding the second reservoir) is reduced, and the water level of the second reservoir is kept within the first threshold range, and the water level of the third reservoir is kept within the first threshold range.
5. The reservoir group management and control method as described in claim 1, characterized in that, In step S20, when the first reservoir includes multiple upstream reservoirs, the reservoir with the largest water storage capacity among the upstream reservoirs of the first reservoir is selected as the second reservoir; when the second reservoir includes multiple upstream reservoirs, the reservoir with the largest water storage capacity among the upstream reservoirs of the second reservoir is selected as the third reservoir.
6. The reservoir group management and control method according to any one of claims 1-5, characterized in that, A group of reservoirs includes at least three successive levels of reservoirs, with the downstream reservoir of the reservoir with the largest water storage capacity upstream of the first reservoir being taken as the uppermost reservoir, and the number of reservoir levels in the group is determined based on the uppermost reservoir.
7. The reservoir group management and control method as described in claim 6, characterized in that, After the silt removal operation in the first reservoir, a water replenishment operation is also included, which includes the following steps: S301. Increase the outflow of the upstream reservoir of the uppermost reservoir.
8. The reservoir group management and control method as described in claim 7, characterized in that, The hydration process also includes the following steps: S302. Increase the outflow of all reservoirs in a group of reservoirs to the upstream reservoirs outside the group, and ensure that the water level of all reservoirs in the group does not exceed the upper limit of their respective threshold range.
9. A reservoir group management and control system, characterized in that, The system includes a memory and a processor, wherein the memory stores a computer program and the processor executes the computer program to implement the reservoir group management and control method according to any one of claims 1-8.