A sluice station operation control system for water conservancy projects

Abstract

The present invention relates to the technical field of control systems, and in particular to a sluice station operation control system for water conservancy projects. The safety volume range is determined by the change of the change speed of the water storage capacity in the current sluice station, the arrival time of the flood peak, the water storage capacity at the current time and a first drainage speed. The degree of change of the water storage capacity of the current sluice station within the predicted duration of the flood peak after the arrival of the flood peak is determined according to the change, the predicted duration of the flood peak and the second drainage speed. The potential water storage overflow is determined according to the safety volume range and the degree of change of the water storage capacity, and flood discharge control is performed according to the water storage overflow. The safety volume range can be automatically determined, and the degree of change of the water storage capacity when the flood peak arrives is predicted to determine the potential water storage overflow, so as to facilitate flood discharge control without manual operation, and is conducive to timely and efficient response to flood situations and improving control effects.

Description

Technical Field

[0001] The invention relates to the technical field of control systems, and in particular to a sluice station operation control system for water conservancy projects. Background Art

[0002] Traditional sluice pump stations are generally monitored manually, and staff are usually required to wait next to the sluice. When there is a water level change or a phone call from the water user, they will rush to the site to operate the sluice switch. Therefore, traditional sluice operations rely on manual control and require manual monitoring and operation, which results in a certain delay and poor timeliness of operation. In addition, under extreme climatic conditions, such as floods, it is impossible to respond to water level changes in a timely and efficient manner, which may lead to floods and poor control effects. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a gate station operation control system for water conservancy projects, and the technical solutions adopted are as follows:

[0004] An embodiment of the present invention provides a gate station operation control system for a water conservancy project, comprising:

[0005] The first determination module is used to determine the change of the change speed of the water storage capacity in the current sluice station, the water storage capacity at the current moment, the first drainage speed at the current moment, the predicted arrival time of the flood peak, the predicted duration of the flood peak, and the predicted second drainage speed after the arrival of the flood peak;

[0006] A second determination module is used to determine a safety volume range according to the change situation, the flood peak arrival time, the water storage capacity at the current time and the first drainage speed;

[0007] A third determination module is used to determine the degree of change of the water storage capacity of the current gate station within the predicted duration of the flood peak after the flood peak arrives according to the change situation, the predicted duration of the flood peak and the second drainage speed;

[0008] The control module is used to determine the potential overflow of water storage according to the safety volume range and the degree of change of the water storage amount, and to perform flood discharge control according to the overflow of water storage.

[0009] In one embodiment, determining the change of the change rate of the water storage capacity in the current sluice station includes:

[0010] Obtaining historical data of the change rate of the water storage capacity in the current sluice station, and constructing a change rate sequence of the water storage capacity based on the historical data;

[0011] Performing linear fitting on the change speed sequence to obtain the change of the change speed of the water storage capacity;

[0012] The change is determined based on the first product of the rate of change of the water storage capacity and the independent variable at the time, and the first sum of the first product and the intercept.

[0013] In one implementation, the second determining module includes a first unit, a second unit, a third unit, and a fourth unit:

[0014] The first unit is used to determine the water intake from the current moment to the flood peak arrival time according to the current moment, the flood peak arrival time, the change situation and the water storage capacity at the current moment;

[0015] The second unit is used to determine the discharge volume of the current gate station at the time when the flood peak arrives according to the current time, the flood peak arrival time and the first drainage speed;

[0016] The third unit is used to determine a second sum of the water storage capacity at the current moment and the water intake, and determine the water storage capacity at the time when the flood peak arrives according to the first difference between the second sum and the water discharge;

[0017] The fourth unit is used to determine the safety volume range according to the water storage capacity at the time when the flood peak arrives and the preset maximum water storage capacity of the current gate station.

[0018] In one embodiment, determining the water intake from the current moment to the flood peak arrival time according to the current moment, the flood peak arrival time, the change situation, and the water storage capacity at the current moment includes:

[0019] Taking the current time and the flood peak arrival time as the boundary values ​​of the time independent variable, performing integral calculation on the change situation to obtain an integral result;

[0020] The water intake from the current moment to the flood peak arrival moment is obtained according to a second difference between the integration result and the water storage amount at the current moment.

[0021] In one embodiment, determining the safety volume range according to the water storage capacity at the time when the flood peak arrives and the preset maximum water storage capacity of the current sluice station includes:

[0022] Determining a real-time safety volume according to a third difference between the preset maximum water storage capacity and the water storage capacity at the time when the flood peak arrives;

[0023] In the time from the current moment to the flood peak arrival moment, if the real-time safety volume at any moment is a positive number, the minimum real-time safety volume is recorded as the minimum safety volume of the current gate station;

[0024] During the time from the current moment to the flood peak arrival moment, if the real-time safety volume at any moment is a negative number, simulate flood discharge to determine the maximum safety volume;

[0025] The safety volume range is determined according to the minimum safety volume and the maximum safety volume.

[0026] In one embodiment, if the real-time safety volume at any time is a negative number, performing a simulated flood discharge to determine the maximum safety volume includes:

[0027] If the real-time safety volume at any time is negative, simulate flood discharge to recalculate the new real-time safety volume;

[0028] When the new real-time safety volume is equal to the preset maximum water storage volume, the preset maximum water storage volume is used as the maximum safety volume;

[0029] When the new real-time safety volume is less than the preset maximum water storage capacity, the new real-time safety volume is used as the maximum safety volume.

[0030] In one embodiment, determining the predicted flood peak duration and the predicted second drainage speed after the flood peak arrives includes:

[0031] Obtain the flood discharge speed and discharge volume of the upstream sluice station;

[0032] According to the flood peak arrival time and the change, determine the water inflow speed at the flood peak arrival time, and obtain the predicted second drainage speed after the flood peak arrives according to the third sum of the water inflow speed at the flood peak arrival time and the flood discharge speed of the upstream sluice station;

[0033] The predicted duration of the flood peak is obtained according to the ratio of the flood discharge volume to the flood discharge speed.

[0034] In one implementation, the third determining module includes a first determining unit, a second determining unit, a third determining unit, a fourth determining unit, and a fifth determining unit:

[0035] The first determining unit is used to determine a target time within the flood peak prediction duration after reaching the flood peak arrival time, and determine a first square of the target time and a second square of the flood peak arrival time;

[0036] The second determination unit is used to determine a second product of a rate of change of the speed of change of the water storage amount and the first square and a third product of a rate of change of the speed of change of the water storage amount and the second square, and calculate a first ratio of the second product to a preset value and a second ratio of the third product to the preset value;

[0037] The third determining unit is used to determine a fourth difference between the intercept and the second drainage speed and a fourth product of the fourth difference and the target time;

[0038] The fourth determining unit is used to determine a fifth product of the flood peak arrival time and the second drainage speed;

[0039] The fifth determination unit is used to determine a fifth difference between the first ratio and the second ratio, and determine a degree of change in the water storage capacity of the current gate station within the predicted duration of the flood peak after the flood peak arrives based on the fifth difference, the fourth product and the third sum of the fifth product.

[0040] In one embodiment, determining the potential water storage overflow amount according to the safety volume range and the degree of change of the water storage amount includes:

[0041] determining an overflow threshold value according to a sixth product of the maximum safety volume in the safety volume range and a preset ratio;

[0042] Determine the to-be-determined time within the predicted duration of the flood peak after the flood peak arrives, and obtain the target water storage capacity change degree of the current gate station at the to-be-determined time within the predicted duration of the flood peak after the flood peak arrives according to the to-be-determined time and the water storage capacity change degree;

[0043] A potential water storage overflow amount is determined according to a sixth difference between the target water storage amount change degree and the overflow threshold.

[0044] In one embodiment, the flood discharge control according to the overflow of the stored water includes:

[0045] During the flood peak forecast duration, if the water storage overflow is a positive number, determine the excess water storage exceeding the safety volume range and the corresponding excess time period according to the water storage overflow;

[0046] Flood discharge control is performed according to the excess water storage amount and the excess time period.

[0047] The present invention has the following beneficial effects:

[0048] By determining the change of the change speed of the water storage capacity in the current sluice station, the water storage capacity at the current moment, the first drainage speed at the current moment, the predicted flood peak arrival time, the predicted flood peak duration and the second drainage speed after the predicted flood peak arrives, the safety volume range is determined according to the change, the flood peak arrival time, the water storage capacity at the current moment and the first drainage speed, the degree of change of the water storage capacity of the current sluice station within the predicted flood peak duration after the flood peak arrives is determined according to the change, the flood peak predicted duration and the second drainage speed, the potential water storage overflow is determined according to the safety volume range and the degree of change of the water storage capacity, and flood discharge control is performed according to the water storage overflow. The safety volume range can be automatically determined, and the degree of change of the water storage capacity when the flood peak arrives is predicted to determine the potential water storage overflow, which is convenient for flood discharge control without manual operation, and is conducive to timely and efficient response to flood situations and improving control effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 A structural block diagram of a sluice station operation control system for a water conservancy project provided by one embodiment of the present invention;

[0051] Figure 2 A flowchart of the steps of recalculating the safety volume and making a judgment based on the drainage speed after flood discharge to determine the maximum safety volume provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0052] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following is a detailed description of the specific implementation, structure, features and effects of a sluice station operation control system for a water conservancy project proposed by the present invention in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0053] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0054] It should be noted that the term “exemplary” in the embodiments of the present invention refers to examples listed for the convenience of explanation, and other embodiments are not limited to the examples listed.

[0055] A specific scheme of a sluice station operation control system for a water conservancy project provided by the present invention is described in detail below in conjunction with the accompanying drawings.

[0056] See also Figure 1 , which shows a schematic diagram of a gate station operation control system for a water conservancy project provided by an embodiment of the present invention. The gate station operation control system for a water conservancy project may at least include:

[0057] The first determination module is used to determine the change in the speed of change of the water storage capacity in the current sluice station, the water storage capacity at the current moment, the first drainage speed at the current moment, the predicted flood peak arrival time, the predicted flood peak duration and the second drainage speed after the predicted flood peak arrives.

[0058] The second determination module is used to determine the safety volume range according to the change situation, the arrival time of the flood peak, the water storage capacity at the current time and the first drainage speed.

[0059] The third determination module is used to determine the degree of change of the water storage capacity of the current gate station within the predicted duration of the flood peak after the flood peak arrives according to the change situation, the predicted duration of the flood peak and the second drainage speed.

[0060] The control module is used to determine the potential overflow of water storage according to the safety volume range and the degree of change of water storage, and to perform flood discharge control according to the overflow of water storage.

[0061] The technical solution of the embodiment of the present invention determines the change of the change speed of the water storage capacity in the current gate station, the water storage capacity at the current moment, the first drainage speed at the current moment, the predicted flood peak arrival time, the predicted flood peak duration and the second drainage speed after the predicted flood peak arrives, determines the safety volume range according to the change, the flood peak arrival time, the water storage capacity at the current moment and the first drainage speed, determines the degree of change of the water storage capacity of the current gate station within the predicted flood peak duration after the flood peak arrives according to the change, the flood peak duration and the second drainage speed, determines the potential water storage overflow according to the safety volume range and the degree of change of the water storage capacity, and performs flood discharge control according to the water storage overflow, can automatically determine the safety volume range, and predict the degree of change of the water storage capacity when the flood peak arrives to determine the potential water storage overflow, which is convenient for flood discharge control without manual operation, and is conducive to timely and efficient response to flood situations and improved control effects.

[0062] It should be noted that in order to determine the safety of the current sluice station, it is necessary to determine the historical information of the changing speed of the water inflow of the current sluice station before the flood peak caused by the upstream flood discharge arrives based on the relevant information of the current sluice station (that is, whether the historical real-time water inflow speed changes before the upstream flood peak reaches the current sluice station), and obtain the water inflow speed at each moment in the future period excluding the influence of the flood peak, so as to facilitate the subsequent evaluation and calculation of the minimum safety volume and maximum safety volume when the flood peak arrives, and then judge the safety in combination with the water volume information after the flood peak arrives.

[0063] In one implementation, the first determination module may determine the change in the change rate of the water storage capacity in the current gate station, and the specific process is as follows:

[0064] First, the real-time change speed of the water storage capacity in the current sluice station (real-time means the current moment), the water inflow speed at the current moment (including the normal drainage of the upstream reservoir and the water volume of other tributaries), the first drainage speed at the current moment, the water storage capacity at the current moment and other data can be obtained through detection devices such as water level sensors and flow meters. Therefore, after a certain period of time, a large amount of data will be collected as historical data. For example, the collection of the real-time change speed of several water storage capacities, such as collecting the real-time change speed once every 1 minute, can obtain the historical data of the change speed of the water storage capacity in the current sluice station, and then, based on these historical data, the change speed sequence of the water storage capacity is constructed at intervals of 1 minute. The real-time change speed sequence is constructed with the time series as the horizontal axis and the change speed as the vertical axis.

[0065] Secondly, a linear fitting is performed on the change speed sequence to obtain the change speed of water storage capacity. , where the rate of change of water storage capacity is the number of cubic meters of water entering the reservoir per second, also known as the water inflow rate. The rate of change (slope) according to the speed of change of water storage With the time variable The first product of and the first product with the intercept The first sum value is determined by:

[0066] ;

[0067] In the embodiment of the present invention, the first determination module can also determine the predicted flood peak arrival time, the predicted flood peak duration, and the predicted second drainage speed after the flood peak arrives, for example, based on the flood discharge speed, flood discharge time, the distance between the upstream sluice station and the current sluice station, etc. Exemplarily, taking the determination of the predicted flood peak duration and the predicted second drainage speed after the flood peak arrives as an example:

[0068] Obtain the flood discharge speed and discharge volume of the upstream sluice station, and then, according to the arrival time and change of the flood peak , determine the water inflow speed at the time of the flood peak arrival, and obtain the predicted second drainage speed after the flood peak arrives based on the third sum of the water inflow speed at the time of the flood peak arrival and the flood discharge speed of the upstream sluice station. Finally, based on the ratio of flood discharge volume to flood discharge speed, the predicted duration of the flood peak can be obtained.

[0069] It should be noted that the water storage in the current sluice station may increase due to various reasons. In order to ensure that the water storage does not exceed the safe water level, flood discharge operations are required. However, flood discharge operations will increase the water inflow of downstream sluice stations. Therefore, it is necessary to discharge the water in the reservoir under the premise of controlling the flood discharge speed to prevent flood disasters. At the same time, it is necessary to notify the downstream sluice station of the flood discharge time, flood discharge volume, flood discharge speed and other information to ensure that the downstream sluice station can make advance judgments on the increase in water inflow caused by flood discharge and prevent the water storage of the downstream sluice station from exceeding the safe water level. In this way, staggered flood discharge at each level can ensure the safety of property and the control effect of the sluice station.

[0070] In one implementation, the second determining module includes a first unit, a second unit, a third unit, and a fourth unit.

[0071] The first unit is used to determine the water inflow from the current time to the time when the flood peak arrives according to the current time, the time when the flood peak arrives, the change situation and the water storage capacity at the current time, specifically:

[0072] First, the current time and peak arrival time As the independent variable The boundary value of the change is calculated by integrating the changes to obtain the integral result , which is the integral result of the water storage volume at the flood peak. Then, according to the integral result The water storage capacity at the current moment The second difference of is used to obtain the water inflow from the current time to the time when the flood peak arrives. .

[0073] ;

[0074] The second unit is used to calculate the current time , peak arrival time And the first drainage speed , determine the discharge volume of the current sluice station at the time of flood peak arrival , .

[0075] Unit 3 is used to determine the water storage capacity at the current moment With water intake The second sum value of The first difference of determines the water storage capacity when the flood peak arrives :

[0076] ;

[0077] ;

[0078] The fourth unit is used to determine the safety volume range according to the water storage capacity at the time when the flood peak arrives and the preset maximum water storage capacity of the current gate station.

[0079] It should be noted that, before the peak of the flood arrives, the amount of water stored in the current sluice station is uncertain due to the inflow of upstream water and the discharge to the downstream. Therefore, it is necessary to judge the range of the safety volume of the current sluice station before the peak of the flood arrives (the acceptable water volume of the current reservoir), and the change of the water inflow rate of the current sluice station after the peak of the flood arrives, and judge the change speed of the water storage capacity of the current sluice station in the time period after the peak of the flood arrives, and judge whether the change of the water storage capacity in the time period after the peak of the flood arrives is within the safety volume range of the current sluice station before the peak of the flood arrives, so as to judge whether it is necessary to discharge the flood in advance, and notify the personnel in advance or discharge the flood automatically, and also modify the upstream flood discharge and evacuate the crowd, or divert the flood. In addition, since the current sluice station may only ensure daily water discharge and circulation when the gate is not fully opened, it is necessary to obtain the range of the safety volume of the current reservoir according to the change speed of the water inflow of the current sluice station, the drainage speed before and after the gate of the current sluice station, the water storage capacity at the current moment, and the time of the peak of the flood.

[0080] In the embodiment of the present invention, the processing process of the fourth unit is specifically:

[0081] First, the real-time safety volume is determined based on the third difference between the preset maximum water storage and the water storage at the time of the flood peak. The real-time safety volume = the preset maximum water storage .

[0082] Secondly, during the time from the current moment to the arrival of the flood peak, if the real-time safety volume at any moment is a positive number, the minimum real-time safety volume will be recorded as the minimum safety volume of the current gate station.

[0083] Furthermore, during the period from the current moment to the moment when the flood peak arrives, if the real-time safety volume at any moment is negative, it means that the water storage exceeds the maximum water storage capacity of the current sluice station, and there is a flood risk, and water needs to be released in advance (for example, multiple reminders can be set, and if there is no response, the information will be automatically sent to the downstream sluice station and the sluice will be opened to release water). In order to reserve water level to receive the flood peak, a simulated flood discharge is performed, and a judgment is made based on whether it is still exceeded at subsequent moments, and the safety volume is recalculated and judged based on the drainage speed after the flood discharge to determine the maximum safety volume, such as Figure 2For example:

[0084] 1. If the real-time safety volume at any time is negative, simulate flood discharge. For example, a flood discharge volume can be preset, flood discharge can be carried out, and then the new real-time safety volume can be recalculated.

[0085] 2. When the new real-time safety volume is equal to the preset maximum water storage capacity, the preset maximum water storage capacity will be used as the maximum safety volume, indicating that the current gate station has been emptied, and the preset maximum water storage capacity of the current gate station is the maximum safety volume of the current gate station.

[0086] 3. When the new real-time safety volume is less than the preset maximum water storage capacity, it means that the current discharge of the gate station is greater than the water intake, but it has not been emptied. The new real-time safety volume will be used as the maximum safety volume.

[0087] At this point, the safety volume range can be determined based on the minimum safety volume and the maximum safety volume.

[0088] In one implementation, the third determining module includes a first determining unit, a second determining unit, a third determining unit, a fourth determining unit, and a fifth determining unit.

[0089] The first determination unit is used to determine the arrival time of the flood peak (Right now ), the target time within the flood peak forecast duration , and determine the target time The first square and the second square of the peak arrival time .

[0090] Taking the preset value of 2 as an example, the second determination unit is used to determine the rate of change of the speed of change of the water storage capacity. With the first square The second product of and the rate of change of water storage capacity With the second square The third product of , and calculate the first ratio of the second product to the preset value 2 and a second ratio of the third product to the preset value ;

[0091] The third determination unit is used to determine the intercept With the second drainage speed The fourth difference And the fourth difference and the target time The fourth product of ;

[0092] The fourth determining unit is used to determine the fifth product of the flood peak arrival time and the second drainage speed. ;

[0093] a fifth determining unit, configured to determine a fifth difference between the first ratio and the second ratio, and determine a degree of change in the water storage capacity of the current sluice station within the predicted duration of the flood peak after the flood peak arrives according to the fifth difference, the fourth product, and the third sum of the fifth product. , that is, the change in each moment during the flood peak forecast duration after the flood peak arrives compared with the time when the flood peak arrives:

[0094] ;

[0095] in, The target time represents a moment within the predicted duration of the flood peak after the flood peak arrives. It is the current water inflow rate plus the flood discharge rate (there may be diversion and parallel flow during the period, but this is used as a reference value and subsequent real-time calculations and adjustments will be made continuously).

[0096] In one embodiment, the control module includes a first control unit and a second control unit.

[0097] In the embodiment of the present invention, the first control unit is used to determine the potential overflow of water storage according to the safety volume range and the degree of change of water storage. Specifically:

[0098] First, according to the maximum safety volume in the safety volume range The sixth product of the preset ratio is used to determine the overflow threshold. For example, taking the preset ratio as 0.9 as an example, the overflow threshold is determined as .

[0099] Secondly, after the arrival time of the flood peak is determined, the time to be determined within the duration of the flood peak forecast is determined, and the change degree of water storage is determined according to the time to be determined and the degree of change of water storage. , we can get the change degree of the target water storage capacity of the current sluice station at the time to be determined within the duration of the flood peak forecast after the flood peak arrives. For example, assuming that the time to be determined is , the target water storage capacity change degree determined at this time is In the embodiment of the present invention, for convenience, the time to be determined is continued as Indicates that the target water storage capacity changes by The following description will be continued using the example.

[0100] Then, the potential water storage overflow is determined based on the sixth difference between the target water storage change and the overflow threshold. , .

[0101] In the embodiment of the present invention, the second control unit is used to perform flood discharge control according to the overflow amount of stored water, specifically:

[0102] First, within the duration of the flood peak forecast, if the water storage overflow is a positive number, it means that after the flood peak arrives, the current gate station at that time will If the water storage capacity exceeds the overflow threshold, flood disasters may occur. Determine the specific time period of the overflow. , that is, the time period during which the water storage overflow is continuously positive, and the excess water storage that exceeds the safety volume range is counted , exceeding the water storage capacity :

[0103] ;

[0104] Among them, through Filter out the negative part and only integrate the positive value to ensure that the calculation result only includes the part of the water storage exceeding the safety volume, and get the accurate excess water storage .

[0105] Secondly, flood discharge control is carried out according to the excess water storage capacity and the excess time.

[0106] Specifically, based on the obtained possibility of the arrival of the flood peak, the excess water storage capacity can be released in advance before the specific exceeding time, and the time and amount of the flood release can be notified to the downstream gate station. The downstream gate station continues to judge whether further flood release is needed based on the above method according to the information transmitted by the current gate station, until no more flood release is carried out, thereby solving the flood and achieving the effect of effective flood discharge control.

[0107] The sluice station operation control system of the water conservancy project of the embodiment of the present invention has a high degree of automation and can complete real-time monitoring and operation of the water level of the sluice station without human supervision, effectively reducing labor costs and solving the labor shortage problem of difficulty in hiring on-duty personnel; in addition, through early prediction of flood peaks and reasonable scheduling, the risk of sudden floods can be effectively reduced, the overall safety and stability of the sluice can be improved, disasters caused by excessive water levels can be avoided, and the control effect is good.

[0108] It should be noted that the above-mentioned sequence of the embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0109] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

Claims

1. A gate station operation control system for a water conservancy project, characterized in that: include: The first determination module is used to determine the change of the change speed of the water storage capacity in the current sluice station, the water storage capacity at the current moment, the first drainage speed at the current moment, the predicted arrival time of the flood peak, the predicted duration of the flood peak, and the predicted second drainage speed after the arrival of the flood peak; A second determination module is used to determine a safety volume range according to the change situation, the flood peak arrival time, the water storage capacity at the current time and the first drainage speed; A third determination module is used to determine the degree of change of the water storage capacity of the current gate station within the predicted duration of the flood peak after the flood peak arrives according to the change situation, the predicted duration of the flood peak and the second drainage speed; A control module, used to determine the potential overflow of water storage according to the safety volume range and the degree of change of the water storage, and to perform flood discharge control according to the overflow of water storage; The determination of the change situation of the change speed of the water storage capacity in the current sluice station includes: Obtaining historical data of the change rate of the water storage capacity in the current sluice station, and constructing a change rate sequence of the water storage capacity based on the historical data; Performing linear fitting on the change speed sequence to obtain the change of the change speed of the water storage capacity; The change is determined according to the first product of the change rate of the change speed of the water storage amount and the independent variable at the time, and the first sum of the first product and the intercept; The second determining module includes a first unit, a second unit, a third unit and a fourth unit: The first unit is used to determine the water intake from the current moment to the flood peak arrival time according to the current moment, the flood peak arrival time, the change situation and the water storage capacity at the current moment; The second unit is used to determine the discharge volume of the current gate station at the time when the flood peak arrives according to the current time, the flood peak arrival time and the first drainage speed; The third unit is used to determine a second sum of the water storage capacity at the current moment and the water intake, and determine the water storage capacity at the time when the flood peak arrives according to the first difference between the second sum and the water discharge; The fourth unit is used to determine the safety volume range according to the water storage capacity at the time when the flood peak arrives and the preset maximum water storage capacity of the current gate station; Determining the safety volume range according to the water storage capacity at the time when the flood peak arrives and the preset maximum water storage capacity of the current gate station includes: Determining a real-time safety volume according to a third difference between the preset maximum water storage capacity and the water storage capacity at the time when the flood peak arrives; In the time from the current moment to the flood peak arrival moment, if the real-time safety volume at any moment is a positive number, the minimum real-time safety volume is recorded as the minimum safety volume of the current gate station; During the time from the current moment to the flood peak arrival moment, if the real-time safety volume at any moment is a negative number, simulate flood discharge to determine the maximum safety volume; Determining the safety volume range according to the minimum safety volume and the maximum safety volume; The third determination module includes a first determination unit, a second determination unit, a third determination unit, a fourth determination unit and a fifth determination unit: The first determining unit is used to determine a target time within the flood peak prediction duration after reaching the flood peak arrival time, and determine a first square of the target time and a second square of the flood peak arrival time; The second determination unit is used to determine a second product of a rate of change of the speed of change of the water storage amount and the first square and a third product of a rate of change of the speed of change of the water storage amount and the second square, and calculate a first ratio of the second product to a preset value and a second ratio of the third product to the preset value; The third determining unit is used to determine a fourth difference between the intercept and the second drainage speed and a fourth product of the fourth difference and the target time; The fourth determining unit is used to determine a fifth product of the flood peak arrival time and the second drainage speed; The fifth determination unit is used to determine a fifth difference between the first ratio and the second ratio, and determine a degree of change in the water storage capacity of the current gate station within the predicted duration of the flood peak after the flood peak arrives based on the fifth difference, the fourth product and the third sum of the fifth product.

2. The gate station operation control system for water conservancy projects according to claim 1 is characterized in that: Determining the water intake from the current moment to the flood peak arrival time according to the current moment, the flood peak arrival time, the change situation, and the water storage capacity at the current moment includes: Taking the current time and the flood peak arrival time as the boundary values ​​of the time independent variable, performing integral calculation on the change situation to obtain an integral result; The water intake from the current moment to the flood peak arrival moment is obtained according to a second difference between the integration result and the water storage amount at the current moment.

3. The gate station operation control system for water conservancy projects according to claim 1 is characterized in that: If the real-time safety volume at any time is a negative number, performing a simulated flood discharge to determine the maximum safety volume includes: If the real-time safety volume at any time is negative, simulate flood discharge to recalculate the new real-time safety volume; When the new real-time safety volume is equal to the preset maximum water storage volume, the preset maximum water storage volume is used as the maximum safety volume; When the new real-time safety volume is less than the preset maximum water storage capacity, the new real-time safety volume is used as the maximum safety volume.

4. The gate station operation control system for water conservancy projects according to claim 1 is characterized in that: Determining the predicted duration of the flood peak and the predicted second drainage speed after the flood peak arrives includes: Obtain the flood discharge speed and discharge volume of the upstream sluice station; According to the flood peak arrival time and the change, determine the water inflow speed at the flood peak arrival time, and obtain the predicted second drainage speed after the flood peak arrives according to the third sum of the water inflow speed at the flood peak arrival time and the flood discharge speed of the upstream sluice station; The predicted duration of the flood peak is obtained according to the ratio of the flood discharge volume to the flood discharge speed.

5. The gate station operation control system for water conservancy projects according to claim 1 is characterized in that: Determining the potential water storage overflow according to the safety volume range and the degree of change of the water storage volume includes: determining an overflow threshold value according to a sixth product of the maximum safety volume in the safety volume range and a preset ratio; Determine the to-be-determined time within the predicted duration of the flood peak after the flood peak arrives, and obtain the target water storage capacity change degree of the current gate station at the to-be-determined time within the predicted duration of the flood peak after the flood peak arrives according to the to-be-determined time and the water storage capacity change degree; A potential water storage overflow amount is determined according to a sixth difference between the target water storage amount change degree and the overflow threshold.

6. The gate station operation control system for water conservancy projects according to claim 1 is characterized by: The flood discharge control according to the overflow of the stored water comprises: During the flood peak forecast duration, if the water storage overflow is a positive number, determine the excess water storage exceeding the safety volume range and the corresponding excess time period according to the water storage overflow; Flood discharge control is performed according to the excess water storage amount and the excess time period.

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