Method, device and electronic equipment for combined operation and control of flood discharge and power generation in hydropower station

Abstract

The present invention provides a method, device and electronic equipment for joint operation and control of flood discharge and power generation in a hydropower station. The method comprises: determining the initial water level of a preset period of time in front of the dam of the hydropower station according to water level simulation parameter information and a preset water level prediction model; comparing the initial water level with a preset water level threshold range; if the initial water level is higher than the upper limit of the water level threshold range, executing a water level exceeding upper limit control step to determine a control instruction; or, if the initial water level is lower than the lower limit of the water level threshold range, executing a water level exceeding lower limit control step to determine a control instruction; or, if the initial water level is within the water level threshold range, executing a water level not exceeding limit control step to determine a control instruction; and controlling the gate opening and load according to the control instruction. The method can efficiently and quickly carry out the joint operation and control process of flood discharge and power generation in a hydropower station, and ultimately ensure the long-term stable and safe operation of the hydropower station.

Description

Technical Field

[0001] The present invention relates to the technical field of hydropower station dispatching and control, and in particular to a method, device and electronic equipment for controlling the combined operation of flood discharge and power generation in a hydropower station. Background Art

[0002] Water resources usually have significant basin characteristics, and the annual and inter-annual runoff distribution of most rivers in my country is uneven, with large differences in flow between wet and dry seasons, resulting in uneven distribution of water resources in time and space. Therefore, building hydropower stations with good adjustable performance and implementing runoff regulation are important measures to fully utilize water resources. In order to take into account the requirements of flood control, power generation, full utilization of water resources and other comprehensive utilization, cascade hydropower stations are usually built in the basin.

[0003] Existing hydropower stations usually face the situation of small water level control range, low unit working head, large flow in flood season and normal water season, and large unit vibration range. In addition, due to the joint control of hydropower generation and flood discharge gates of hydropower stations, they are easily affected by various factors such as water level storage capacity curve, water flow lag, hydrometeorology, power station scheduling, subjective human intervention, etc., and the storage capacity of the hydropower station itself is often small, and the hydropower station is very sensitive to the frequently changing flow response of the upstream cascade power station. Combined with the changes in various influencing factors, the flood discharge gates in the joint control are frequently operated and the load adjustment of the hydropower station is frequently accumulated. After long-term operation, the health of the hydropower station units will be damaged, and the flood discharge facilities and hydraulic structures will also be damaged to varying degrees.

[0004] In the prior art, some people have proposed methods for coordinating and controlling the load distribution and water use for power generation of hydropower stations. However, they usually calculate a load value based on the load distribution algorithm and directly distribute the load of the load value to the hydropower station so that the hydropower station operates according to the load. The control measures of this type of method are relatively one-sided and the control errors are relatively large. Summary of the invention

[0005] The present invention provides a method, device and electronic equipment for controlling the combined operation of flood discharge and power generation in a hydropower station, which are used to overcome the defects of the prior art that the existing control measures are relatively one-sided and the control errors are relatively large.

[0006] The present invention provides a combined operation control method for flood discharge and power generation in a hydropower station, comprising:

[0007] Determine the initial water level height in front of the hydropower station dam for a preset period of time based on the water level simulation parameter information and the preset water level prediction model;

[0008] Comparing the initial water level with a preset water level threshold range;

[0009] If the initial water level is higher than the upper limit of the water level threshold range, executing the water level exceeding upper limit control step to determine the control instruction;

[0010] Or, if the initial water level is lower than the lower limit of the water level threshold range, a water level exceeding lower limit control step is executed to determine a control instruction;

[0011] Or, if the initial water level height is within the water level height threshold range, then executing the water level not exceeding limit control step to determine the control instruction;

[0012] The gate opening and load are regulated according to the regulation instructions.

[0013] According to the combined operation and control method for flood discharge and power generation in a hydropower station provided by the present invention, the water level simulation parameter information includes an initial gate opening and an initial planned load for a preset period of time.

[0014] According to the combined operation control method for flood discharge and power generation of a hydropower station provided by the present invention, if the initial water level is higher than the upper limit of the water level threshold range, a water level exceeding upper limit control step is executed to determine a control instruction, including:

[0015] Determine an updated planned load at the next detection moment, wherein the updated planned load at the next detection moment = the initial planned load + the load adjustable margin; wherein the next detection moment is separated from the current detection moment by a fixed time;

[0016] Update the water level simulation parameter information according to the updated planned load at the next detection moment, and re-determine the current water level height in a preset period of time in front of the dam of the hydropower station according to the updated water level simulation parameter information and the water level prediction model;

[0017] Determine whether the current water level is still higher than the upper limit of the water level threshold range;

[0018] If it is still higher than the upper limit, then check whether the updated planned load at each next detection moment after the current moment is no longer adjustable: if it is still adjustable, continue to determine the updated planned load at the next detection moment to re-determine the current water level, and re-judge whether the current water level is higher than the upper limit; if it is not adjustable, increase the gate opening until the water level in the future preset time period does not exceed the upper limit;

[0019] If it is not higher than the upper limit value, the corresponding load control instruction and gate opening control instruction are generated.

[0020] According to the combined operation control method for flood discharge and power generation of a hydropower station provided by the present invention, if the initial water level is lower than the lower limit of the water level threshold range, a water level exceeding lower limit control step is executed to determine a control instruction, including:

[0021] Detecting the current gate opening and determining whether the gate is fully closed;

[0022] If the gate is not fully closed, after lowering the gate opening to re-determine the current water level height in the preset period of time in front of the hydropower station dam, it is determined whether the current water level height is still lower than the lower limit of the water level height threshold range; if it is still lower than the lower limit, the current gate opening is re-detected to determine whether the gate is fully closed;

[0023] If the gate is fully closed, after determining the updated planned load at the next detection time and re-determining the current water level in the preset time period in front of the hydropower station dam, determine whether the current water level is still lower than the lower limit of the water level threshold range; if it is still lower than the lower limit, continue to adjust the load until the water level in the future preset time period is not lower than the lower limit;

[0024] If the current water level is not lower than the lower limit, a corresponding load control instruction and gate opening control instruction are generated.

[0025] According to the combined operation control method for flood discharge and power generation of a hydropower station provided by the present invention, if the gate is not fully closed, after lowering the gate opening to re-determine the current water level height in front of the hydropower station dam for a preset period of time, it is determined whether the current water level height is still lower than the lower limit value; if it is still lower than the lower limit value, the current gate opening is re-detected and it is determined whether the gate is fully closed, including:

[0026] If the gate is not fully closed, the gate opening is adjusted downward once, and the updated gate opening is determined, where the updated gate opening = the gate opening after the adjustment once;

[0027] The water level simulation parameter information is updated according to the updated gate opening, and the current water level height in a preset period of time in front of the dam of the hydropower station is re-determined according to the updated water level simulation parameter information and the water level prediction model;

[0028] Determine whether the current water level is still below the lower limit;

[0029] If it is still below the lower limit, the current gate opening is re-detected to determine whether the gate is fully closed.

[0030] According to the combined operation control method for flood discharge and power generation of a hydropower station provided by the present invention, if the gate is fully closed, after determining the updated planned load at the next detection moment and re-determining the current water level height in a preset period of time in front of the hydropower station dam accordingly, it is determined whether the current water level height is still lower than the lower limit value of the water level height threshold range; if it is still lower than the lower limit value, the load is continuously adjusted until the water level height in the future preset period of time is not lower than the lower limit value, including:

[0031] If the gate is fully closed, determine the updated planned load at the next detection time, wherein the updated planned load at the next detection time = the initial planned load - the load adjustable margin; wherein the next detection time is separated from the current detection time by a fixed time;

[0032] Update the water level simulation parameter information according to the updated planned load at the next detection moment, and re-determine the current water level height in a preset period of time in front of the dam of the hydropower station according to the updated water level simulation parameter information and the water level prediction model;

[0033] Determine whether the current water level is still lower than the lower limit of the water level threshold range;

[0034] If it is still lower than the lower limit, the updated planned load at the next detection moment is set to half of the updated planned load at the next detection moment until the water level in the future preset time period is not lower than the lower limit.

[0035] According to a method for controlling flood discharge and power generation combined operation of a hydropower station provided by the present invention, a first reference value and a second reference value of a water level are set, and the lower limit of the water level threshold range is satisfied < the first reference value < the second reference value < the upper limit of the water level threshold range, and if the initial water level is within the water level threshold range, a water level not exceeding limit control step is executed to determine a control instruction, including:

[0036] Comparing the initial water level with the first reference value and the second reference value respectively;

[0037] When the initial water level is lower than the first reference value, the current gate opening is detected and it is determined whether the gate is fully closed; if the gate is not fully closed, the gate opening is adjusted downward to redetermine the current water level in the preset period in front of the dam of the hydropower station until the current water level is not lower than the first reference value; if the gate is fully closed, the updated planned load at the next detection moment is determined, and the current water level in the preset period in front of the dam of the hydropower station is redetermined accordingly until the current water level is not lower than the first reference value; wherein, the updated planned load at the next detection moment = the initial planned load - the load adjustable margin; wherein, the next detection moment is separated from the current detection moment by a fixed time;

[0038] Or, when the initial water level is greater than the second reference value, the updated planned load at the next detection moment is determined, and the current water level in the preset period in front of the dam of the hydropower station is re-determined accordingly, until the current water level is no higher than the second reference value; wherein the updated planned load at the next detection moment = the initial planned load + the load adjustable margin; wherein the next detection moment is separated from the current detection moment by a fixed time;

[0039] Or, when the first reference value is less than the initial water level height and less than the second reference value, it is determined whether the load at the last detection moment is the load adjusted on the basis of the initial planned load; if it has not been adjusted or has been adjusted and the actual adjustment time exceeds the preset adjustment time, no load regulation is performed at the current detection moment; if it has been adjusted and the actual adjustment time does not exceed the preset adjustment time, the load regulation at the current moment is performed according to the load adjustment situation at the last detection moment;

[0040] Generate corresponding load control instructions and gate opening control instructions.

[0041] According to the combined operation and control method of flood discharge and power generation of a hydropower station provided by the present invention, the load adjustable margin is the optimal load adjustable margin value of the current hydropower station determined according to the initial water level height of the current hydropower station and the load adjustable margin calculation model; wherein the load adjustable margin calculation model is based on the gate opening data, gate action times, average water head data, power generation water volume data, flood discharge volume data and average power generation efficiency data in the historical period of the current hydropower station, and is pre-trained in combination with a deep learning algorithm.

[0042] The present invention also provides a combined operation control device for flood discharge and power generation in a hydropower station, comprising:

[0043] The water level prediction module is used to determine the initial water level height in front of the dam of the hydropower station in a preset period of time according to the water level simulation parameter information and the preset water level prediction model;

[0044] A comparison module, used for comparing the initial water level with a preset water level threshold range;

[0045] An execution module, for executing a water level exceeding upper limit control step to determine a control instruction if the initial water level height is higher than an upper limit value of the water level height threshold range; or for executing a water level exceeding lower limit control step to determine a control instruction if the initial water level height is lower than a lower limit value of the water level height threshold range; or for executing a water level not exceeding limit control step to determine a control instruction if the initial water level height is within the water level height threshold range;

[0046] The control module is used to control the gate opening and load according to the control instructions.

[0047] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, all or part of the steps of the method for joint operation and control of flood discharge and power generation of a hydropower station as described in any one of the above items are implemented.

[0048] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements all or part of the steps of the method for controlling the combined operation of flood discharge and power generation in a hydropower station as described in any one of the above items.

[0049] The present invention provides a method, device and electronic equipment for controlling the combined operation of flood discharge and power generation in a hydropower station. The method can overcome the defects of the existing control measures in the prior art that are relatively one-sided and have large control errors, and can efficiently and quickly perform the combined operation control process of flood discharge and power generation in a hydropower station, ultimately ensuring the long-term stable and safe operation of the hydropower station. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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.

[0051] Figure 1 This is one of the flow charts of the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention;

[0052] Figure 2 This is the second flow chart of the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention;

[0053] Figure 3 This is the third flow chart of the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention;

[0054] Figure 4 This is the fourth flow chart of the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention;

[0055] Figure 5 It is a structural schematic diagram of the combined operation and control device for flood discharge and power generation in a hydropower station provided by the present invention;

[0056] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention.

[0057] Reference numerals:

[0058] 510: water level prediction module; 520: comparison module; 530: execution module; 540: control module;

[0059] 610: processor; 620: communication interface; 630: memory; 640: communication bus. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] The following is combined with Figure 1-6 The invention describes the combined operation control method, device and electronic equipment for flood discharge and power generation in a hydropower station.

[0062] The present invention is described by taking a cascade hydropower station in a certain area as an example. The total reservoir capacity of the hydropower station is 20.84 million m 3 , dead water level 550.0m ~ normal water level 554.0m, respectively as the lower and upper limits of the water level height threshold range, the delay time for the water flow from the upstream cascade hydropower station to reach the reservoir area of ​​this hydropower station is about 80 minutes, this time is used as the preset time period in front of the dam of this hydropower station. Current situation: The adjustable storage capacity between the dead water level 550.0m ~ normal water level 554.0m is only 5.85 million m 3 The adjustable storage capacity of the hydropower station itself is small, and the water level operating range is also small. Therefore, even if the change in the inflow flow is small in a short period of time (for example, 100-200m3 / s), the change will still cause a large change in the water level of the hydropower station in a short period of time. And when the outflow flow is large during the flood season, the downstream water level rises sharply. In order to ensure a certain power generation head, the hydropower station needs to maintain a relatively high upstream water level, which will lead to frequent adjustments to the gate opening of the hydropower station. As a result, it will have a negative impact on the health of various facilities and equipment of the hydropower station.

[0063] The embodiment of the present invention takes the above-mentioned hydropower station as an example, and arranges a new method for joint operation and control of flood discharge and power generation of the hydropower station, so that the hydropower station can efficiently and quickly control the load and gate opening of the hydropower station to ensure the normal operation of the hydropower station.

[0064] The present invention provides a combined operation control method for flood discharge and power generation in a hydropower station. Figure 1 This is one of the flow charts of the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention. Figure 1 As shown, the method includes:

[0065] 100. Determine the initial water level height in front of the hydropower station dam in a preset period of time based on the water level simulation parameter information and the pre-set water level prediction model.

[0066] The acquired water level simulation parameter information (including the initial gate opening and the initial planned load for the preset period) is input into the preset water level prediction model to determine the initial water level height of the preset period in front of the hydropower station dam through the simulation of the model. Among them, the water level prediction model is a water level estimation model that has been trained earlier based on the historical water level change data of the hydropower station and other related gate opening data and hydropower station load data. The training process of the model applies a deep learning algorithm. The specific training process can refer to the practice of water level estimation technology in the prior art, which will not be repeated here. Among them, the preset period refers to the longest time that the water level in front of the hydropower station dam can be predicted. According to the relevant data preset in the initial scene of the embodiment of the present invention, T is the preset period, then T = 80min. The acquired water level simulation parameter information is input into the water level prediction model to predict the water level in front of the hydropower station dam in the next 80 minutes as the initial water level height.

[0067] It should be noted that the initial water level of each cycle judgment and regulation process adopts the measured water level height, that is, the water level height at the end of this cycle is used as the initial water level height simulated at the next detection moment.

[0068] 200. Compare the initial water level with a preset water level threshold range.

[0069] The initial water level in front of the hydropower station dam in the next 80 minutes estimated in step 100 is compared with the pre-set water level threshold range to see whether the initial water level exceeds the limit. min is the lower limit of the water level height threshold range, and the normal water level Z max is the upper limit of the water level threshold range, that is, the water level threshold range is Z min ~Z max . And according to the relevant data of the initial scene preset in the embodiment of the present invention, Z min The value is 550m, and Z max The value is 554m. That is, the initial water level in front of the hydropower station dam in the next 80 minutes estimated in step 100 is compared with Z min ~Z max The water level in front of the dam is compared with the water level height threshold range (550m~554m) to determine whether the water level in front of the dam exceeds the limit in the future T period.

[0070] It can also be understood that the initial water level height and Z min~Z max The comparison of the water level height threshold range (550m~554m) is divided into three parallel situations: the initial water level is higher than the upper limit value Z of the water level height threshold range; max 554m, or the initial water level is within the water level threshold range Z min 550m~Z max 554m, or the initial water level is lower than the lower limit Z of the water level threshold range. max 554m. In each of the three cases, independent control steps are performed to determine the corresponding control instructions.

[0071] 310. If the initial water level is higher than the upper limit of the water level threshold range, execute the water level exceeding upper limit control step to determine the control instruction.

[0072] If the initial water level is higher than the upper limit Z of the water level threshold range max 554m, the water level exceeds the upper limit control step is executed, which can also be understood as entering the water level exceeds the upper limit decision logic to determine the corresponding control instructions in this case.

[0073] Or, 320, if the initial water level is lower than the lower limit of the water level threshold range, the water level exceeding lower limit control step is executed to determine the control instruction.

[0074] If the initial water level is lower than the lower limit Z of the water level threshold range min 550m, the water level exceeds the lower limit control step is executed, which can also be understood as entering the water level exceeds the lower limit decision logic to determine the corresponding control instructions in this case.

[0075] Or, 330, if the initial water level height is within the water level height threshold range, then the water level not exceeding limit control step is executed to determine the control instruction.

[0076] If the initial water level is within the water level threshold range Z min 550m~Z max 554m, the water level not exceeding the limit control step is executed, which can also be understood as entering the water level not exceeding the limit decision logic to determine the corresponding control instructions in this case.

[0077] The corresponding control instructions determined by the above-mentioned situations may involve load control instructions and gate opening control instructions, etc. according to their own actual control conditions.

[0078] 400. Regulate the gate opening and load according to the regulation instruction.

[0079] The hydropower station control and management system controls the load and gate opening according to the specific contents of the load control instructions and gate opening instructions determined above, so that the hydropower station can be controlled efficiently and quickly to ensure the long-term stable and safe operation of the hydropower station.

[0080] The combined operation and control method for flood discharge and power generation of a hydropower station provided by the present invention can efficiently control the gate opening and load at the next detection moment of the hydropower station based on the adjustable load margin possessed by the hydropower station, and can give relevant control suggestions to the power station personnel, thereby reducing the number of daily load declarations by the power station to a certain extent, more effectively reducing the number of gate actions and load adjustments, and improving the long-term safe operation level of the power station. It effectively overcomes the defects of the existing control measures in the prior art that are relatively one-sided and have large control errors, and ultimately ensures the long-term stable and safe operation of the hydropower station.

[0081] According to the combined operation and control method for flood discharge and power generation in a hydropower station provided by the present invention, the water level simulation parameter information includes an initial gate opening and an initial planned load for a preset period of time.

[0082] Specifically, the water level simulation parameter information is used as an input parameter for predicting the water level in front of the dam within a preset period of time T, which specifically includes the current actual water level in front of the dam, the initial gate opening, the inflow in the future preset period of time T, and the initial planned load in the future preset period of time T. Among them, the most important are the initial gate opening parameters and the initial planned load in the future preset period of time T, because in the later stage, due to the regulation of the hydropower station, the gate opening will and / or the planned load at the next detection time will change with the regulation. The planned load at the next detection time is usually related to the initial planned load in the future preset period of time T and the load adjustable margin of the current hydropower station.

[0083] According to the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention, Figure 2 This is the second flow chart of the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention. Figure 2 As shown, in Figure 1 On the basis of the method shown, when executing step 310, step 310, if the initial water level is higher than the upper limit of the water level threshold range, then executing the water level exceeding upper limit control step to determine the control instruction further includes:

[0084] 311. Determine an updated planned load at a next detection moment, wherein the updated planned load at the next detection moment = the initial planned load + the load adjustable margin; wherein the next detection moment is separated from the current detection moment by a fixed time.

[0085] Determine the updated planned load at the next detection time, that is, modify the planned load at the next detection time to adjust to the load upper limit F that can be adjusted to the hydropower station load at the next moment max The adjustable upper limit of the load of the hydropower station refers to the maximum output of the hydropower station unit at the current water level of the hydropower station, which is specifically calculated as follows: The adjustable upper limit of the load of the hydropower station F max = Initial planned load + load adjustable margin. Therefore, the updated planned load at the next detection time is determined to be the upper limit of the load that can be adjusted by the hydropower station load F max = initial planned load + load adjustable margin. In addition, the next detection time is regarded as the next detection time with a fixed interval from the current detection time (the current detection time when the preset time period of 80 minutes is applied), such as the next detection time after an interval of 5 minutes.

[0086] By adjusting the load, the water outflow of the hydropower station becomes larger, so more water can flow out faster, causing the water level to drop.

[0087] 312. Update the water level simulation parameter information according to the updated planned load at the next detection moment, and re-determine the current water level height in a preset period of time in front of the dam of the hydropower station according to the updated water level simulation parameter information and the water level prediction model.

[0088] According to the updated planned load at the next detection moment determined in step 311 = initial planned load + load adjustable margin, the water level simulation parameter information is updated, that is, the initial planned load in the original water level simulation parameter information is replaced with the updated planned load at the next detection moment, and the updated water level simulation information is input into the water level prediction model again to re-simulate the current water level height in the future preset time period T in front of the hydropower station dam.

[0089] 313. Determine whether the current water level is still higher than the upper limit of the water level threshold range.

[0090] Continue to determine whether the re-determined current water level is still higher than the upper limit Z of the water level threshold range. max 554m.

[0091] 314. If it is still higher than the upper limit value, check whether the updated planned load at each next detection moment after the current moment is no longer adjustable: if it is still adjustable, continue to determine the updated planned load at the next detection moment to redetermine the current water level, and re-judge whether the current water level is higher than the upper limit value; if it is not adjustable, increase the gate opening until the water level in the future preset time period does not exceed the upper limit value.

[0092] If the re-determined current water level is still higher than the upper limit Z of the water level threshold range max 554m, then further determine whether the updated planned load at each next detection moment after the current moment is no longer adjustable. If it is adjustable, continue to increase the load upper limit of the planned load at future moments until the planned load at all future moments is adjusted to the adjustable load upper limit; if it is no longer adjustable, adjust the gate opening instead, and gradually increase the gate opening until the water level in the future T period no longer exceeds the upper limit value Z max 554m.

[0093] 315. If it is not higher than the upper limit value, a corresponding load control instruction and gate opening control instruction are generated.

[0094] When the current water level determined in step 313 is no longer higher than the upper limit Z of the water level threshold range, max 554m, or, although higher than Z max However, after the regulation in step 314, the current water level height re-determined is no longer higher than the upper limit value Z of the water level height threshold range. max At 554m, the corresponding load control instructions and gate opening control instructions shall be generated according to the above-mentioned control steps, so that the hydropower station control management system can respectively control the load and gate opening according to the specific contents of the above-mentioned load control instructions and gate opening instructions, thereby ensuring the long-term stable and safe operation of the hydropower station.

[0095] According to the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention, Figure 3 This is the third flow chart of the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention. Figure 3 As shown, in Figure 1 On the basis of the method shown, when executing step 320, step 320, if the initial water level is lower than the lower limit of the water level threshold range, executing the water level exceeding lower limit control step to determine the control instruction includes:

[0096] 321. Detect the current gate opening and determine whether the gate is fully closed.

[0097] Detect the current gate opening and determine whether the gate is partially or completely closed (this refers to the size of a gate opening, not the change in the number of gates).

[0098] 322. If the gate is not fully closed, after lowering the gate opening to redetermine the current water level in front of the hydropower station dam for a preset period of time, determine whether the current water level is still lower than the lower limit of the water level threshold range; if it is still lower than the lower limit, re-detect the current gate opening and determine whether the gate is fully closed.

[0099] If the gate is not fully closed, the gate opening is adjusted downward once, and after the gate opening is adjusted downward to re-determine the current water level height in front of the hydropower station dam for the preset period T, it is re-determined whether the current water level height is still lower than the lower limit value Z of the water level height threshold range. min 550m;

[0100] If it is determined that the new current water level is still lower than the lower limit Z of the water level threshold range min 550m, re-detect the current gate opening and determine whether the gate is fully closed, and continue to reduce the gate opening if it is not fully closed until the gate is fully closed.

[0101] 323. If the gate is fully closed, then after determining the updated planned load at the next detection time and re-determining the current water level height in the preset time period in front of the hydropower station dam, determine whether the current water level height is still lower than the lower limit value of the water level height threshold range; if it is still lower than the lower limit value, continue to adjust the load until the water level height in the future preset time period is not lower than the lower limit value.

[0102] If the gate is fully closed, the updated planned load at the next detection time is determined according to the initial planned load and the load adjustable margin, and after the updated planned load at the next detection time is determined and the current water level in the preset period in front of the hydropower station dam is re-determined, it is re-determined whether the current water level is still lower than the lower limit value Z of the water level threshold range. min 550m;

[0103] If the re-determined current water level is still lower than the lower limit Z min 550m, continue to adjust the updated planned load at the next detection time until the water level in the future preset time period is no longer lower than the lower limit value.

[0104] 324. If the current water level is not lower than the lower limit, a corresponding load control instruction and gate opening control instruction are generated.

[0105] When step 322 directly determines that the new current water level is no longer lower than the lower limit Z of the water level threshold range, min 550m, or after the control in step 323, the current water level is no longer lower than the lower limit Z min When the speed is 550m, the corresponding load control instructions and gate opening control instructions shall be generated according to the above-mentioned control steps, so that the hydropower station control management system can respectively control the load and gate opening according to the specific contents of the above-mentioned load control instructions and gate opening instructions, thereby ensuring the long-term stable and safe operation of the hydropower station.

[0106] According to the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention, Figure 3 Step 322 shown, if the gate is not fully closed, then after lowering the gate opening to re-determine the current water level height in front of the hydropower station dam for a preset period of time, it is determined whether the current water level height is still lower than the lower limit value, and if it is still lower than the lower limit value, the current gate opening is re-detected and it is determined whether the gate is fully closed, further comprising:

[0107] 3221. If the gate is not fully closed, the gate opening is adjusted downward once, and the updated gate opening is determined, where the updated gate opening = the gate opening after the adjustment once.

[0108] If the gate is not fully closed, the gate opening is adjusted downward once, and the updated gate opening is determined, where the updated gate opening = the gate opening after the adjustment.

[0109] 3222. Update the water level simulation parameter information according to the updated gate opening, and re-determine the current water level height in a preset period of time in front of the hydropower station dam according to the updated water level simulation parameter information and the water level prediction model.

[0110] After lowering the gate opening, the water level simulation parameter information is updated according to the updated gate opening, that is, the initial gate opening in the initial water level simulation parameter information is replaced with the updated gate opening to obtain new water level simulation information, and then the new water level simulation information is re-input into the water level prediction model to re-estimate the current water level height in the preset time period T in front of the hydropower station dam.

[0111] 3223. Determine whether the current water level is still below the lower limit.

[0112] Then re-determine whether the current water level height re-determined in step 3222 is still lower than the lower limit value Z of the water level height threshold range. min 550m.

[0113] 3224. If it is still below the lower limit, re-detect the current gate opening and determine whether the gate is fully closed.

[0114] If it is determined that the new current water level is still lower than the lower limit Z of the water level threshold range min 550m, re-detect the current gate opening and determine whether the gate is fully closed, and continue to reduce the gate opening if it is not fully closed until the gate is fully closed.

[0115] According to the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention, Figure 3Step 323 shown, if the gate is fully closed, after determining the updated planned load at the next detection time and re-determining the current water level height in the preset time period in front of the hydropower station dam, it is determined whether the current water level height is still lower than the lower limit value of the water level height threshold range, and if it is still lower than the lower limit value, the load is continuously adjusted until the water level height in the future preset time period is not lower than the lower limit value, further comprising:

[0116] 3231. If the gate is fully closed, determine the updated planned load at the next detection time, where the updated planned load at the next detection time = the initial planned load - the load adjustable margin; wherein the next detection time is separated from the current detection time by a fixed time.

[0117] If the gate is fully closed, the updated planned load at the next detection time is determined according to the initial planned load and the load adjustable margin, and the updated planned load at the next detection time = the initial planned load - the load adjustable margin. The next detection time is separated from the current detection time by a fixed time, such as 5 minutes.

[0118] 3232. Update the water level simulation parameter information according to the updated planned load at the next detection moment, and re-determine the current water level height in a preset period of time in front of the dam of the hydropower station according to the updated water level simulation parameter information and the water level prediction model.

[0119] The water level simulation parameter information is updated according to the updated planned load at the next detection moment, that is, the initial planned load in the initial water level simulation parameter information is replaced with the updated planned load at the next detection moment to obtain the updated water level simulation parameter information, and then the updated water level simulation information is input into the water level prediction model to re-determine the current water level height in the preset period in front of the hydropower station dam.

[0120] 3233. Determine whether the current water level is still lower than the lower limit of the water level threshold range.

[0121] Determine whether the re-determined current water level is still lower than the lower limit Z of the water level threshold range min 550m.

[0122] 3234. If it is still lower than the lower limit, set the updated planned load at the next detection moment to half of the updated planned load at the next detection moment until the water level in the future preset time period is not lower than the lower limit.

[0123] If the re-determined current water level is still lower than the lower limit Z min550m, then continue to adjust the updated planned load at the next detection time: set the updated planned load at the next detection time to half of the updated planned load at the next detection time that has been adjusted last time. Or continue to adjust the load until the current water level in the future preset period T is no longer lower than the lower limit value Z min 550m.

[0124] According to a method for joint operation and control of flood discharge and power generation in a hydropower station provided by the present invention, a first reference value and a second reference value of the water level are preferably set, and the lower limit of the water level threshold range is satisfied < the first reference value < the second reference value < the upper limit of the water level threshold range. Specifically, the first reference value is recorded as Z 1 , and the value is set to Z 1 Take 551m, the second reference value is recorded as Z 2 , and the value is set to Z 2 Take 553.5m. And satisfy Z min 550m<Z 1 551m<Z 2 553.5m<Z max 554m.

[0125] Among them, Z min The lower limit of the water level threshold range for the operation of the hydropower station, such as the dead water level; Z max It is the upper limit of the water level height threshold range for the operation of the power station, such as the normal water storage level; the two water level limits are the hard control water levels in the operation of the hydropower station. When the actual water level may exceed the limits of these two water levels, all possible means should be taken to control the water level from exceeding the limit. The added Z1 is the reference value for the low water level, that is, when the actual water level is lower than this water level, it is considered that the operating water level of the hydropower station is low at this time, and appropriate measures can be taken to raise the water level; the added Z2 is the reference value for the high water level, that is, when the actual water level is higher than this water level, it is considered that the operating water level of the hydropower station is high at this time, and appropriate measures can be taken to lower the water level; these two water levels are reference water level values ​​in the operation of the hydropower station, and are non-essential control water levels. The two reference water level values ​​in the embodiment of the present invention are standard water level control operations, which belong to advance control based on potential water level over-limit risks, and can be adjusted accordingly before the over-limit risk occurs, which can better ensure the safety and stability of the operation of the hydropower station.

[0126] And at the set first reference value Z 1 551m and the second reference value Z 2 553.5m on the basis of Figure 4 This is the fourth flow chart of the combined operation and control method of flood discharge and power generation in a hydropower station provided by the present invention. Figure 4 As shown, in Figure 1On the basis of the method shown, the step 330, if the initial water level is within the water level threshold range, then executing the water level not exceeding limit control step to determine the control instruction, further includes:

[0127] 331. Compare the initial water level with the first reference value and the second reference value respectively.

[0128] The initial water level in the future preset time period T is respectively compared with the first reference value Z 1 551m and the second reference value Z 2 553.5m for comparison.

[0129] The comparison results are divided into three parallel situations, and each situation executes its own corresponding control steps respectively.

[0130] 3321. When the initial water level is lower than the first reference value, the current gate opening is detected and it is determined whether the gate is fully closed; if the gate is not fully closed, the gate opening is adjusted downward to redetermine the current water level in the preset period in front of the dam of the hydropower station until the current water level is not lower than the first reference value; if the gate is fully closed, the updated planned load at the next detection moment is determined, and the current water level in the preset period in front of the dam of the hydropower station is redetermined accordingly until the current water level is not lower than the first reference value; wherein, the updated planned load at the next detection moment = the initial planned load - the load adjustable margin; wherein, the next detection moment is separated from the current detection moment by a fixed time.

[0131] If step 331 determines that the initial water level is lower than the first reference value Z 1 551m, then detect the current gate opening and determine whether the gate is fully closed. If the gate is not fully closed, adjust the gate opening downward to re-determine the current water level height in front of the hydropower station dam for a preset period of time until the current water level height is not lower than the first reference value Z 1 551m, that is, lower the gate opening until the current water level is higher than the first reference value Z 1 If the gate is fully closed, the updated planned load at the next detection time is determined, and the current water level in front of the hydropower station dam for a preset period of time is re-determined accordingly, until the current water level is not lower than the first reference value Z 1 551m; wherein, the updated planned load at the next detection moment = the initial planned load - the load adjustable margin; wherein, the next detection moment is separated from the current detection moment by a fixed time, for example, 5 minutes.

[0132] Or, 3322. When the initial water level is greater than the second reference value, the updated planned load at the next detection moment is determined, and the current water level in a preset period of time in front of the dam of the hydropower station is re-determined accordingly until the current water level is no higher than the second reference value; wherein, the updated planned load at the next detection moment = the initial planned load + the load adjustable margin; wherein, the next detection moment is separated from the current detection moment by a fixed time.

[0133] Or, if step 331 determines that the initial water level is higher than the second reference value Z 2 553.5m, the updated planned load at the next detection time is determined, and the current water level in the preset period of time in front of the hydropower station dam is re-determined accordingly. The specific operation steps refer to the load control steps in the above embodiment until the current water level is not higher than the second reference value Z 2 553.5m. The updated planned load at the next detection time = the initial planned load + load adjustable margin; the next detection time is separated from the current detection time by a fixed time, such as 5 minutes.

[0134] Or, 3323, when the first reference value < the initial water level height < the second reference value, determine whether the load at the previous detection moment is the load adjusted based on the initial planned load; if it has not been adjusted or has been adjusted and the actual adjustment time exceeds the preset adjustment time, no load control is performed at the current detection moment; if it has been adjusted and the actual adjustment time does not exceed the preset adjustment time, load control is performed at the current moment based on the load adjustment situation at the previous detection moment.

[0135] Or, if step 331 determines that the initial water level is not higher than the second reference value Z 2 553.5m, and not less than the first reference value Z 1 551m, that is, at the first reference value Z 1和 The second reference value Z 2 When the first reference value < the initial water level height < the second reference value is satisfied, it is further determined whether the load at the last detection moment is the load adjusted on the basis of the initial planned load.

[0136] If it has not been adjusted, it proves that the current water level is suitable and no adjustment is needed, so no load regulation will be performed this time. Alternatively, if it has been adjusted and the actual adjustment time exceeds the preset adjustment time, such as exceeding the preset adjustment time by 30 minutes, it proves that the current water level has been adjusted to be suitable, so no load regulation will be performed this time.

[0137] If the adjustment has been made and the actual adjustment time does not exceed the preset adjustment time, for example, the actual adjustment time is only 20 minutes and has not exceeded the preset adjustment time of 30 minutes, it is determined that the last adjustment has not been completed so that the current water level has not been adjusted to an appropriate height. Then, the load control is carried out this time according to the load adjustment plan at the last detection moment to make the final control result appropriate.

[0138] 333. Generate corresponding load control instructions and gate opening control instructions.

[0139] For the above-mentioned control steps of step 3321, step 3322 and step 3323, the corresponding load control instructions and gate opening control instructions are generated respectively, so that the hydropower station control management system can respectively control the load and gate opening according to the specific contents of the above-mentioned load control instructions and gate opening instructions, thereby ensuring the long-term stable and safe operation of the hydropower station.

[0140] According to the combined operation and control method of flood discharge and power generation of a hydropower station provided by the present invention, the load adjustable margin is the optimal load adjustable margin value of the current hydropower station determined according to the initial water level height of the current hydropower station and the load adjustable margin calculation model; wherein the load adjustable margin calculation model is based on the gate opening data, gate action times, average water head data, power generation water volume data, flood discharge volume data and average power generation efficiency data in the historical period of the current hydropower station, and is pre-trained in combination with a deep learning algorithm.

[0141] Preferably, the optimal load adjustable margin of the hydropower station is determined by calculating the load adjustable margin calculation model in combination with the input of the initial water level height of the current hydropower station and other relevant parameters, and then analyzing the marginal benefits of the gate operation times and the load adjustment margin.

[0142] The load adjustable margin calculation model is based on the gate opening data, gate action times, average water head data, power generation water volume data, flood discharge volume data and average power generation efficiency data in the historical period of the current hydropower station, and is pre-trained in combination with a deep learning algorithm. For example, using a variety of measured data of a hydropower station in a four-month flood season as input data, using a real-time control strategy, rolling decisions are made on the gate opening and hydropower station unit output for the entire period, such as making a decision every five minutes, and determining the hydropower station unit output and gate opening at the next moment at each decision.

[0143] As shown in Table 1 below, under different load adjustable margin conditions, the calculation results of real-time control decisions are shown in Table 1. According to the record analysis of the number of gate actions and the marginal benefit of the load adjustable margin for the calculation results shown in Table 1, it can be seen that as the load adjustable margin increases, the number of gate actions gradually decreases; and in this embodiment, when the load adjustable margin is 110-120MW, the marginal benefit of the load adjustable margin is close to maximum. According to the record analysis of the average head and average power generation efficiency and the record analysis of the flood discharge and power generation water volume for the calculation results shown in Table 1, it can be seen that as the load adjustable margin increases, the average power generation efficiency of the hydropower station unit decreases, but the power generation water volume increases. Although a certain amount of power generation head and unit efficiency are lost in this process, the long-term safe operation level of the power station is greatly improved. Then, combined with the record analysis of the calculation results in Table 1 and the relevant data, the load adjustable margin calculation model finally determines the optimal load adjustable margin suitable for the current hydropower station. In this embodiment, a load adjustable margin of 120 MW is selected as the theoretically optimal load adjustable margin of the current hydropower station.

[0144] Then, the optimal load adjustable margin selected and determined according to the current hydropower station is applied to the above-mentioned method of combined operation and control of flood discharge and power generation of the hydropower station in a timely manner. Furthermore, by allowing the hydropower station to have a certain degree of load adjustable margin that can be determined independently based on the load instructions of the power grid, it is possible to select the optimal load adjustable margin to apply to the control process, which can greatly enhance the regulation ability of the hydropower station itself and improve the level of long-term safe operation.

[0145] Table 1

[0146]

[0147]

[0148] The following is an introduction to a combined operation and control device for flood discharge and power generation of a hydropower station provided by the present invention. The combined operation and control device for flood discharge and power generation of a hydropower station corresponds to the combined operation and control method for flood discharge and power generation of a hydropower station, and the principles can be referred to each other, which will not be repeated here.

[0149] The present invention also provides a combined operation control device for flood discharge and power generation in a hydropower station. Figure 5 Schematic diagram of the structure of the combined operation and control device for flood discharge and power generation in a hydropower station provided by the present invention. Figure 5 As shown, the device includes a water level prediction module 510, a comparison module 520, an execution module 530 and a control module 540 connected in sequence, wherein:

[0150] The water level prediction module 510 is used to determine the initial water level height in front of the dam of the hydropower station in a preset period of time according to the water level simulation parameter information and the preset water level prediction model;

[0151] A comparison module 520, configured to compare the initial water level with a preset water level threshold range;

[0152] An execution module 530 is used to execute a water level exceeding upper limit control step to determine a control instruction if the initial water level height is higher than an upper limit value of the water level height threshold range; or to execute a water level exceeding lower limit control step to determine a control instruction if the initial water level height is lower than a lower limit value of the water level height threshold range; or to execute a water level not exceeding limit control step to determine a control instruction if the initial water level height is within the water level height threshold range;

[0153] The control module 540 is used to control the gate opening and load according to the control instruction.

[0154] The combined operation and control device for flood discharge and power generation of a hydropower station provided by the present invention comprises a water level prediction module 510, a comparison module 520, an execution module 530 and a control module 540 connected in sequence. The modules cooperate with each other so that the device can efficiently control the gate opening and load at the next detection moment of the hydropower station based on the load adjustable margin of the hydropower station, and can give relevant control suggestions to the power station personnel, thereby reducing the number of load declarations made by the power station every day to a certain extent, more effectively reducing the number of gate actions and load adjustments, and improving the long-term safe operation level of the power station. It effectively overcomes the defects of the existing control measures in the prior art that are relatively one-sided and have large control errors, and ultimately ensures the long-term stable and safe operation of the hydropower station.

[0155] The present invention also provides an electronic device, Figure 6 is a schematic diagram of the structure of the electronic device provided by the present invention, such as Figure 6 As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute all or part of the steps of the combined operation control method of flood discharge and power generation of a hydropower station, and the method includes:

[0156] Determine the initial water level height in front of the hydropower station dam for a preset period of time based on the water level simulation parameter information and the preset water level prediction model;

[0157] Comparing the initial water level with a preset water level threshold range;

[0158] If the initial water level is higher than the upper limit of the water level threshold range, executing the water level exceeding upper limit control step to determine the control instruction;

[0159] Or, if the initial water level is lower than the lower limit of the water level threshold range, a water level exceeding lower limit control step is executed to determine a control instruction;

[0160] Or, if the initial water level height is within the water level height threshold range, then executing the water level not exceeding limit control step to determine the control instruction;

[0161] The gate opening and load are regulated according to the regulation instructions.

[0162] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the combined operation and control method of flood discharge and power generation of a hydropower station described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0163] On the other hand, the present invention further provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, the computer can execute all or part of the steps of the method for joint operation and control of flood discharge and power generation of a hydropower station provided in the above embodiments, the method comprising:

[0164] Determine the initial water level height in front of the hydropower station dam for a preset period of time based on the water level simulation parameter information and the preset water level prediction model;

[0165] Comparing the initial water level with a preset water level threshold range;

[0166] If the initial water level is higher than the upper limit of the water level threshold range, executing the water level exceeding upper limit control step to determine the control instruction;

[0167] Or, if the initial water level is lower than the lower limit of the water level threshold range, a water level exceeding lower limit control step is executed to determine a control instruction;

[0168] Or, if the initial water level height is within the water level height threshold range, then executing the water level not exceeding limit control step to determine the control instruction;

[0169] The gate opening and load are regulated according to the regulation instructions.

[0170] In another aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements all or part of the steps of the method for controlling the combined operation of flood discharge and power generation of a hydropower station as described in the above embodiments, the method comprising:

[0171] Determine the initial water level height in front of the hydropower station dam for a preset period of time based on the water level simulation parameter information and the preset water level prediction model;

[0172] Comparing the initial water level with a preset water level threshold range;

[0173] If the initial water level is higher than the upper limit of the water level threshold range, executing the water level exceeding upper limit control step to determine the control instruction;

[0174] Or, if the initial water level is lower than the lower limit of the water level threshold range, a water level exceeding lower limit control step is executed to determine a control instruction;

[0175] Or, if the initial water level height is within the water level height threshold range, then executing the water level not exceeding limit control step to determine the control instruction;

[0176] The gate opening and load are regulated according to the regulation instructions.

[0177] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the embodiments of the present invention. Those of ordinary skill in the art may understand and implement them without creative effort.

[0178] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the indicator monitoring method described in each embodiment or some parts of the embodiment.

[0179] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for joint operation and control of flood discharge and power generation in a hydropower station, characterized in that: include: Determine the initial water level height in front of the hydropower station dam for a preset period of time based on the water level simulation parameter information and the preset water level prediction model; Comparing the initial water level with a preset water level threshold range; If the initial water level is higher than the upper limit of the water level threshold range, executing the water level exceeding upper limit control step to determine the control instruction; Or, if the initial water level is lower than the lower limit of the water level threshold range, a water level exceeding lower limit control step is executed to determine a control instruction; Or, if the initial water level height is within the water level height threshold range, then executing the water level not exceeding limit control step to determine the control instruction; Regulating the gate opening and load according to the control instructions; Wherein, a first reference value and a second reference value of the water level are set, and the lower limit value of the water level threshold range is satisfied < the first reference value < the second reference value < the upper limit value of the water level threshold range, and if the initial water level is within the water level threshold range, the water level not exceeding limit control step is executed to determine the control instruction, including: Comparing the initial water level with the first reference value and the second reference value respectively; When the initial water level is lower than the first reference value, the current gate opening is detected and it is determined whether the gate is fully closed; if the gate is not fully closed, the gate opening is adjusted downward to redetermine the current water level in the preset period in front of the dam of the hydropower station until the current water level is not lower than the first reference value; if the gate is fully closed, the updated planned load at the next detection moment is determined, and the current water level in the preset period in front of the dam of the hydropower station is redetermined accordingly until the current water level is not lower than the first reference value; wherein, the updated planned load at the next detection moment = the initial planned load - the load adjustable margin; wherein, the next detection moment is separated from the current detection moment by a fixed time; Or, when the initial water level is greater than the second reference value, the updated planned load at the next detection moment is determined, and the current water level in the preset period in front of the dam of the hydropower station is re-determined accordingly, until the current water level is no higher than the second reference value; wherein the updated planned load at the next detection moment = the initial planned load + the load adjustable margin; wherein the next detection moment is separated from the current detection moment by a fixed time; Or, when the first reference value is less than the initial water level height and less than the second reference value, it is determined whether the load at the last detection moment is the load adjusted on the basis of the initial planned load; if it has not been adjusted or has been adjusted and the actual adjustment time exceeds the preset adjustment time, no load regulation is performed at the current detection moment; if it has been adjusted and the actual adjustment time does not exceed the preset adjustment time, the load regulation at the current moment is performed according to the load adjustment situation at the last detection moment; Generate corresponding load control instructions and gate opening control instructions; The load adjustable margin is the optimal load adjustable margin value of the current hydropower station determined according to the initial water level height of the current hydropower station and the load adjustable margin calculation model; wherein, the load adjustable margin calculation model is based on the gate opening data, gate action times, average head data, power generation water volume data, flood discharge volume data and average power generation efficiency data in the historical period of the current hydropower station, and is pre-trained in combination with a deep learning algorithm.

2. The combined operation and control method for flood discharge and power generation of a hydropower station according to claim 1, characterized in that: The water level simulation parameter information includes an initial gate opening and an initial planned load for a preset period of time.

3. The combined operation and control method for flood discharge and power generation of a hydropower station according to claim 2, characterized in that: If the initial water level is higher than the upper limit of the water level threshold range, executing the water level exceeding upper limit control step to determine the control instruction includes: Determine an updated planned load at the next detection moment, wherein the updated planned load at the next detection moment=the initial planned load+the load adjustable margin; wherein the next detection moment is separated from the current detection moment by a fixed time; Update the water level simulation parameter information according to the updated planned load at the next detection moment, and re-determine the current water level height in a preset period of time in front of the dam of the hydropower station according to the updated water level simulation parameter information and the water level prediction model; Determine whether the current water level is still higher than the upper limit of the water level threshold range; If it is still higher than the upper limit, then check whether the updated planned load at each next detection moment after the current moment is no longer adjustable: if it is still adjustable, continue to determine the updated planned load at the next detection moment to re-determine the current water level, and re-judge whether the current water level is higher than the upper limit; if it is not adjustable, increase the gate opening until the water level in the future preset time period does not exceed the upper limit; If it is not higher than the upper limit value, the corresponding load control instruction and gate opening control instruction are generated.

4. The combined operation and control method for flood discharge and power generation of a hydropower station according to claim 2, characterized in that: If the initial water level is lower than the lower limit of the water level threshold range, executing the water level exceeding lower limit control step to determine the control instruction includes: Detecting the current gate opening and determining whether the gate is fully closed; If the gate is not fully closed, after lowering the gate opening to re-determine the current water level height in the preset period of time in front of the hydropower station dam, it is determined whether the current water level height is still lower than the lower limit of the water level height threshold range; if it is still lower than the lower limit, the current gate opening is re-detected to determine whether the gate is fully closed; If the gate is fully closed, after determining the updated planned load at the next detection time and re-determining the current water level in the preset time period in front of the hydropower station dam, determine whether the current water level is still lower than the lower limit of the water level threshold range; if it is still lower than the lower limit, continue to adjust the load until the water level in the future preset time period is not lower than the lower limit; If the current water level is not lower than the lower limit, a corresponding load control instruction and gate opening control instruction are generated.

5. The combined operation and control method for flood discharge and power generation of a hydropower station according to claim 4, characterized in that: If the gate is not fully closed, after lowering the gate opening to re-determine the current water level height in front of the hydropower station dam for a preset period of time, it is determined whether the current water level height is still lower than the lower limit value; if it is still lower than the lower limit value, the current gate opening is re-detected to determine whether the gate is fully closed, including: If the gate is not fully closed, the gate opening is adjusted downward once, and the updated gate opening is determined, where the updated gate opening = the gate opening after the adjustment once; The water level simulation parameter information is updated according to the updated gate opening, and the current water level height in a preset period of time in front of the dam of the hydropower station is re-determined according to the updated water level simulation parameter information and the water level prediction model; Determine whether the current water level is still below the lower limit; If it is still below the lower limit, the current gate opening is re-detected to determine whether the gate is fully closed.

6. The combined operation and control method for flood discharge and power generation of a hydropower station according to claim 4, characterized in that: If the gate is fully closed, after determining the updated planned load at the next detection time and re-determining the current water level in the preset time period in front of the hydropower station dam, it is determined whether the current water level is still lower than the lower limit of the water level threshold range. If it is still lower than the lower limit, the load is continuously adjusted until the water level in the future preset time period is not lower than the lower limit, including: If the gate is fully closed, determine the updated planned load at the next detection time, where the updated planned load at the next detection time = the initial planned load - the load adjustable margin; wherein the next detection time is separated from the current detection time by a fixed time; Update the water level simulation parameter information according to the updated planned load at the next detection moment, and re-determine the current water level height in a preset period of time in front of the dam of the hydropower station according to the updated water level simulation parameter information and the water level prediction model; Determine whether the current water level is still lower than the lower limit of the water level threshold range; If it is still lower than the lower limit, the updated planned load at the next detection moment is set to half of the updated planned load at the next detection moment until the water level in the future preset time period is not lower than the lower limit.

7. A combined operation and control device for flood discharge and power generation in a hydropower station, characterized in that: include: The water level prediction module is used to determine the initial water level height in front of the dam of the hydropower station in a preset period of time according to the water level simulation parameter information and the preset water level prediction model; A comparison module, used for comparing the initial water level with a preset water level threshold range; An execution module, for executing a water level exceeding upper limit control step to determine a control instruction if the initial water level height is higher than an upper limit value of the water level height threshold range; or for executing a water level exceeding lower limit control step to determine a control instruction if the initial water level height is lower than a lower limit value of the water level height threshold range; or for executing a water level not exceeding limit control step to determine a control instruction if the initial water level height is within the water level height threshold range; A control module, used to control the gate opening and load according to the control instruction; Wherein, a first reference value and a second reference value of the water level are set, and the lower limit value of the water level threshold range is satisfied < the first reference value < the second reference value < the upper limit value of the water level threshold range, and if the initial water level is within the water level threshold range, the water level not exceeding limit control step is executed to determine the control instruction, including: Comparing the initial water level with the first reference value and the second reference value respectively; When the initial water level is lower than the first reference value, the current gate opening is detected and it is determined whether the gate is fully closed; if the gate is not fully closed, the gate opening is adjusted downward to redetermine the current water level in the preset period in front of the dam of the hydropower station until the current water level is not lower than the first reference value; if the gate is fully closed, the updated planned load at the next detection moment is determined, and the current water level in the preset period in front of the dam of the hydropower station is redetermined accordingly until the current water level is not lower than the first reference value; wherein, the updated planned load at the next detection moment = the initial planned load - the load adjustable margin; wherein, the next detection moment is separated from the current detection moment by a fixed time; Or, when the initial water level is greater than the second reference value, the updated planned load at the next detection moment is determined, and the current water level in the preset period in front of the dam of the hydropower station is re-determined accordingly, until the current water level is no higher than the second reference value; wherein the updated planned load at the next detection moment = the initial planned load + the load adjustable margin; wherein the next detection moment is separated from the current detection moment by a fixed time; Or, when the first reference value is less than the initial water level height and less than the second reference value, it is determined whether the load at the last detection moment is the load adjusted on the basis of the initial planned load; if it has not been adjusted or has been adjusted and the actual adjustment time exceeds the preset adjustment time, no load regulation is performed at the current detection moment; if it has been adjusted and the actual adjustment time does not exceed the preset adjustment time, the load regulation at the current moment is performed according to the load adjustment situation at the last detection moment; Generate corresponding load control instructions and gate opening control instructions; The load adjustable margin is the optimal load adjustable margin value of the current hydropower station determined according to the initial water level height of the current hydropower station and the load adjustable margin calculation model; wherein, the load adjustable margin calculation model is based on the gate opening data, gate action times, average head data, power generation water volume data, flood discharge volume data and average power generation efficiency data in the historical period of the current hydropower station, and is pre-trained in combination with a deep learning algorithm.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, all or part of the steps of the method for joint operation and control of flood discharge and power generation in a hydropower station according to any one of claims 1 to 6 are implemented.

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