15 results about "Pondage" patented technology

The application provides a cascade reservoir group storage and discharge dynamic coordination matching scheduling optimization method and system, and relates to the technical field of water conservancy and hydropower engineering, wherein the method comprises: obtaining the storage capacity of each reservoir in the cascade reservoir group at the current time and the designed storage capacity, and calculating the current fullness rate of each reservoir; for each pair of adjacent reservoirs in the cascade reservoir group, based on the current fullness rate of each adjacent reservoir and the preset joint regulation capacity coefficient, a weighted relative difference value representing the difference degree of the fullness rate of the adjacent reservoirs is calculated; based on the weighted relative difference values of all adjacent reservoir pairs, the coordination matching degree of the cascade reservoir group is determined. Through the application, accurate quantification, dynamic tracking and early warning of scheduling coordination are realized, and the scientificity and timeliness of scheduling decisions are improved.

The utility model relates to the technical field of water conservancy project management, and discloses a leaking stoppage and drainage device for water conservancy project management, which comprises a main body used for supporting the leaking stoppage and drainage device; the leaking stoppage and drainage mechanism comprises a ball arranged in the main body and used for controlling leaking stoppage and drainage of water, and the ball is rotationally connected into the main body; the filtering structure comprises a filtering plate arranged on one side of the main body and used for filtering impurities in drainage water, when the water storage amount of the reservoir is large, the large-diameter hole can be communicated with the drainage hole by adjusting the position of the round ball, and therefore the water drainage amount is increased, the water level of the reservoir is rapidly lowered, and the flood risk is effectively dealt with; and when the water storage capacity of the reservoir is small, the position of the ball can be adjusted, so that the small-caliber hole is communicated with the drainage hole, the water discharge capacity is reduced, water resources are saved, the device can be accurately controlled according to different water storage capacities of the reservoir, and the management efficiency of the water resources is improved.

The application provides a reservoir group water demand prediction and joint optimization scheduling method and system, and relates to the technical field of data processing. Through dynamically combining real-time change parameters such as inflow, initial storage, power generation output, crop growth stage, industrial water-saving link, fine prediction of reservoir cumulative storage, power generation water demand flow, irrigation predicted water demand and industrial predicted water demand is realized. By comprehensively comparing different types of water demand, a larger value is taken as the comprehensive water demand. In the joint scheduling link, from downstream to upstream scheduling strategy, combined with multiple constraint conditions such as water supply priority, water temperature and comprehensive water demand, the scheduling decision of the reservoir group is more scientific and reasonable. The joint scheduling mechanism considering multiple factors can better balance different water demand, improve water resource utilization efficiency, effectively cope with the complexity and uncertainty in water resource allocation, and provide more reliable protection for the optimized operation and multi-objective scheduling of the reservoir group.

The invention provides a reservoir discharge flow continuous prediction method and device, and belongs to the field of basin hydrological simulation. The method comprises the steps of obtaining daily reservoir storage flow, total reservoir storage flow, water taking amount and timestamps corresponding to each day of a to-be-predicted time period, respectively normalizing the daily reservoir storage flow, the total reservoir storage flow of one month, six months, one year, two years and five years in the past, constructing a first input feature data set, and then inputting a reservoir water storage model to obtain a second input feature data set; obtaining a prediction result of the reservoir water storage and the reservoir water level at the beginning of each day; and constructing a second input feature data set after standardizing the reservoir inflow rates of the to-be-predicted time period every day and the first two days, the total reservoir inflow rates of the past one month, six months, one year, two years and five years, the water taking amount, the timestamps and an output result of the reservoir water storage model, and inputting the second input feature data set into the reservoir outflow model to obtain a reservoir outflow rate sequence of the to-be-predicted time period. The method obviously improves the accuracy of continuously predicting the reservoir outlet flow, and is suitable for the condition of lacking continuous water storage observation data.

The application relates to the technical field of disaster prevention and reduction and resource utilization, and particularly discloses a high-mountain alpine ice lake water resource utilization method. The method is characterized in that: first, ice lake parameters are obtained through a method combining multi-source remote sensing measurement and on-site measurement investigation checking, and the dam body stability of an ice-dam is analyzed; then, according to the analysis result of the dam body stability, the design standard requirement of the protection object downstream of the ice-dam, and the predicted breaching parameters, multi-row pile column structure engineering facilities are arranged and controlled to reinforce the dam body; then, the current water storage capacity, the maximum water storage capacity and the standard water storage capacity of the ice-dam are obtained, the relationship between the current water storage capacity and the standard water storage capacity is comprehensively analyzed, and after the collected electricity demand is collected, a one-way water resource utilization scheme or a composite water resource utilization scheme is selected. The application converts the water body with potential harm into clean energy for utilization, and also reduces the risk of ice lake breaching.

The invention discloses a multi-year regulation comprehensive utilization reservoir optimal control method, and relates to the technical field of reservoir optimal control. The method comprises the following steps: S1, constructing a precise dynamic model; and S2, solving the precise dynamic model. The method has multiple tasks of flood control, power generation, agricultural irrigation, ecological release and the like, and the target water storage capacity is set at the end of the scheduling period to guarantee continuous water supply of the reservoir in the dry water year, which is a typical two-point boundary value problem; meanwhile, a control variable and a state variable have upper and lower limit constraints, so that PMP numerical solution is relatively difficult; a complete analytic expression system of the reservoir optimal control model based on the PMP is constructed, and a clear mathematical framework is provided for theoretical analysis and numerical calculation; meanwhile, a co-state variable system calculation method is provided, a unified calculation model of terminal co-state variables and boundary co-state jumping is established, and strict marginal generating capacity connotation of water is given to the co-state variables.

The invention relates to a reservoir scheduling method and system, an intelligent terminal and a storage medium, and relates to the technical field of hydrological prediction, and the method comprises the steps: obtaining the current storage capacity and normal storage capacity of a target reservoir; collecting the water collecting area of the target reservoir; calculating a net rain value according to the rainfall in the unit time length; calling a first calculation formula to perform data processing on the ponding area and the net rain value to obtain the total incoming water amount of the drainage basin; collecting the discharged water amount and the water storage amount of the target reservoir; calling a second calculation formula to perform data processing on the total incoming water amount of the drainage basin, the discharged water amount and the water storage amount of the reservoir to obtain a future water amount; a third calculation formula is called, data processing is conducted on the future water volume, the current reservoir capacity and the normal reservoir capacity, the abandoned water volume of the target reservoir is obtained, and the abandoned water volume refers to the discharged water volume of the target reservoir in the unit duration. The method has the effect of improving the reasonability of reservoir scheduling.

The application discloses a kind of based on water storage index's joint scheduling method of diversion into branch engineering, belong to water supply scheduling technical field, can solve the problem of low efficiency of engineering operation caused by the incoordination of existing technology supply-storage mode.The method comprises the following steps: S1, according to the hydrological information of the main stream and the water demand information of the water user, the dispatching period is divided into the first dispatching period of which the water storage is greater than the water supplement and the second dispatching period of which the water storage is less than the water supplement;S2, determine the multiple correlation factors of water storage index, determine the water storage index of the first dispatching period and the second dispatching period according to the multiple correlation factors;S3, construct the joint scheduling model of water supply reservoir and storage reservoir according to the water storage index of the first dispatching period and the second dispatching period;S4, determine the joint scheduling scheme of water supply reservoir and storage reservoir by using the joint scheduling model.The application is used for the joint scheduling of diversion into branch engineering.

The utility model relates to the technical field of impounding reservoirs, in particular to an adjustable impounding reservoir which comprises an impounding reservoir body applied to a purification workshop, a water outlet pipe is arranged on one side of the impounding reservoir body, a cover plate is horizontally arranged in an inner cavity of the impounding reservoir body, and an overflow cavity is arranged on the water outlet pipe and extends out of the impounding reservoir body. An overflow channel is arranged on one side, corresponding to the reservoir body, of the overflow cavity; an overflow water flow guiding assembly; and an opening and closing assembly. When the water storage capacity in the water storage tank body exceeds the elevation, water can be discharged through the overflow channel to enter the overflow cavity, and is gradually collected by the overflow water flow guide assembly, so that the water flow is prevented from being concentrated in a certain place to cause overlarge pressure, and the effect of reducing the water quantity in the water storage tank body is achieved; in addition, through the arranged opening and closing assembly, the overflow channel can be closed in the operation that water is stored and does not exceed the elevation water level, and the water storage amount in the water storage pool body is guaranteed to the maximum extent.

The invention discloses a hydropower station generating capacity dynamic prediction method and system based on remote sensing image and multi-source data fusion, and the method comprises the steps: a multi-source data synchronous collection and fusion module obtains the remote sensing image and geographic space information of a reservoir region, and collects real-time water level data, flow data and water-turbine generator set operation parameters; the reservoir water surface dynamic identification and three-dimensional modeling module is used for extracting the water area boundary of the reservoir and generating a three-dimensional model reflecting the current water surface form; the dynamic water storage capacity high-precision inversion module is used for calculating the water storage capacity of the current reservoir based on a water level-area-volume dynamic relation model; the generating capacity prediction and efficiency dynamic correction module is used for calculating the average operation efficiency capable of reflecting the current equipment state and predicting the generating capacity in the current and future short period; and the prediction result validity automatic judgment and alarm module is used for determining a generating capacity interval, comparing the predicted generating capacity with the determined generating capacity interval, triggering a recheck mechanism and generating alarm information. The method is not only used for boundary identification, but also directly used for generating capacity prediction.

The application discloses a kind of river water storage evaluation report generation method and device, electronic equipment, it is related to digital twin field, wherein the generation method includes: the hydrological data of target basin is input to pre-play model, and the pre-play water flow data of target basin is output, the river pre-play water storage of target basin is calculated based on pre-play water flow data, based on the real-time hydrological data of target basin and the river data of target basin, the actual water storage of river is calculated, based on the actual water storage of river of target basin and the river pre-play water storage of target basin, the river water storage evaluation report of target basin is generated.The application solves the technical problem of low calculation accuracy in the related art by manually calculating the river water storage.

A distributed waterlogging prevention method comprises the steps that firstly, the real-time drainage capacity and the real-time rainfall intensity in an independent drainage subarea are monitored, when the real-time drainage capacity is smaller than the real-time rainfall intensity, rainwater on a building roof in the independent drainage subarea is guided to a primary water storage space to be stored and stagnated, and when the real-time drainage capacity is smaller than the real-time rainfall intensity, rainwater on a building roof in the independent drainage subarea is drained; the water storage state of the primary water storage space is monitored in real time; secondly, when it is monitored that the water storage amount of the primary water storage space reaches a first saturation threshold value, rainwater is guided from the primary water storage space to a secondary water storage space to be stored and stagnated, and the water storage state of the secondary water storage space is monitored in real time; and thirdly, when it is monitored that the water storage amount of the secondary water storage space reaches a second saturation threshold value, rainwater is guided from the secondary water storage space to the final water storage space to be stored and stagnated, and therefore waterlogging prevention in the independent drainage subareas is achieved. Therefore, the overall waterlogging prevention effect of the design is greatly improved.

The invention provides a hydrological forecasting method, device and equipment coupled with reservoir cascade regulation and storage and a storage medium. Relates to the technical field of hydrological forecasting. The method comprises the steps that on the basis of a high-precision digital elevation model and pond dam water body space distribution data, pond dam outlet points are recognized, a hydraulic connection relation is established, and independent water collection areas of all pond dams are divided; constructing a pond digraph network and generating a topology scheduling sequence; calculating the total inflow, evaporation loss, leakage loss, real-time water surface area and rule-based outflow of each small reservoir according to the scheduling sequence, and updating the water storage; evapotranspiration, runoff production, three-water-source division and confluence calculation are executed, and surface runoff, interflow and underground runoff are output; and inputting the surface runoff into the small reservoirs for regulation and storage calculation, and sequentially driving the small reservoirs for cascade regulation and storage and synthesizing the total outflow process of the drainage basin outlet. According to the method, full-chain integrated high-precision simulation of slope production and confluence, small reservoir cascade regulation and storage and river channel evolution is realized.

The application provides a hydrological forecasting method, device, equipment and storage medium for coupling pond dam cascade regulation and storage. It relates to the technical field of hydrological forecasting. The method comprises the following steps: based on a high-precision digital elevation model and pond dam water body spatial distribution data, identifying a pond dam outlet point, establishing a hydraulic connection relationship, and dividing each pond dam independent catchment area; constructing a pond dam directed graph network and generating a topological scheduling sequence; according to the scheduling sequence, calculating the total inflow, evaporation loss, seepage loss, real-time water surface area and rule-based outflow of each pond dam, and updating the storage capacity; performing evapotranspiration, runoff generation, three water source division and confluence calculation, and outputting the surface runoff, interflow and groundwater runoff; inputting the surface runoff into the pond dam regulation and storage calculation, sequentially driving the pond dam cascade regulation and storage, and synthesizing the total outflow process of the watershed outlet. The method realizes the whole-chain integrated high-precision simulation of slope runoff generation, pond dam cascade regulation and storage and river evolution.