Hydropower station emergency scheduling method and device, computer equipment and storage medium

Abstract

The invention discloses a hydropower station emergency scheduling method and device, computer equipment and a storage medium, and the method comprises the steps: determining a normal unit under the condition that at least one unit of a hydropower station is shut down; acquiring upstream and downstream water level difference; the upstream-downstream water level difference is obtained based on the current upstream water level and the current downstream water level of the hydropower station; if the upstream and downstream water level difference meets the preset range condition, normal unit overflowing is scheduled; and if the upstream and downstream water level difference does not meet the preset range condition, the normal unit and the water diversion gate are scheduled to jointly flow. By means of the scheme, automatic emergency dispatching of the units and the diversion gates of the hydropower station under the emergency condition is achieved, the diversion flow under the emergency condition is effectively controlled, countermeasures can be taken in the shortest time through automatic emergency dispatching, unbalance of the water level and the flow of the diversion canal is prevented, and the water quality of the hydropower station is improved. And the influence of overlarge water level change in the channel on the stability and safety of the main canal slope is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of water conservancy and hydropower, and in particular to a method, device, computer equipment and storage medium for emergency dispatching of a hydropower station. Background Art

[0002] Many water conservancy projects take into account multiple functions such as power generation and water diversion (flood discharge). The water-passing structures of this type of water conservancy hub include two types of buildings: the unit and the water diversion gate (also known as the flood discharge gate), both of which discharge flow.

[0003] In previous operations, in the event of an emergency shutdown of the generator set, the water level and flow in the water diversion channel would be affected and fluctuate greatly, resulting in sudden changes in the water diversion flow, which would pose a safety hazard to the stability of the main channel slope.

[0004] Therefore, there is an urgent need for a method to achieve emergency dispatch in the event of an emergency shutdown of the unit. Summary of the invention

[0005] The embodiments of the present application provide a hydropower station emergency dispatch method, apparatus, computer equipment and storage medium, which realize emergency dispatch of the unit and the water diversion gate in the event of emergency shutdown of the unit, so as to at least partially solve the above-mentioned problems.

[0006] In a first aspect, an embodiment of the present application provides a hydropower station emergency dispatch method, the method comprising:

[0007] When at least one unit of a hydropower station is shut down, determine the normal units;

[0008] Obtaining an upstream and downstream water level difference; the upstream and downstream water level difference is obtained based on a current upstream water level and a current downstream water level of the hydropower station;

[0009] If the upstream and downstream water level difference meets the preset range condition, the normal unit is dispatched to flow;

[0010] If the upstream and downstream water level difference does not meet the preset range conditions, the normal unit is dispatched to jointly flow through the water diversion gate.

[0011] In a second aspect, an embodiment of the present application provides an emergency dispatching device for a hydropower station, the device comprising:

[0012] A determination module, used to determine a normal unit when at least one unit in the hydropower station is shut down;

[0013] An acquisition module, used for acquiring an upstream and downstream water level difference; the upstream and downstream water level difference is obtained based on a current upstream water level and a current downstream water level of the hydropower station;

[0014] A scheduling module, configured to schedule the normal unit to flow if the upstream and downstream water level difference meets a preset range condition;

[0015] The scheduling module is also used to schedule the normal unit to jointly flow with the water diversion gate if the upstream and downstream water level difference does not meet the preset range conditions.

[0016] In a third aspect, an embodiment of the present application further provides a computer device, comprising a memory storing a plurality of instructions; a processor loads instructions from the memory to execute the steps of any one of the hydropower station emergency dispatch methods provided in the embodiments of the present application.

[0017] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, which stores a plurality of instructions suitable for loading by a processor to execute the steps of any one of the hydropower station emergency dispatch methods provided in the embodiments of the present application.

[0018] In a fifth aspect, an embodiment of the present application also provides a computer program product, including a computer program or instructions, which, when executed by a processor, implements the steps of any one of the hydropower station emergency dispatch methods provided in the embodiments of the present application.

[0019] The scheme of the application embodiment is adopted. When at least one unit in the hydropower station is shut down, a normal unit is determined, and the upstream and downstream water level difference is obtained. The upstream and downstream water level difference is compared with the preset range conditions to determine. If the upstream and downstream water level difference meets the preset range conditions, the normal unit is dispatched to pass the flow. If the upstream and downstream water level difference does not meet the preset range conditions, the normal unit and the water diversion gate are dispatched to jointly pass the flow. In this way, the automatic emergency dispatch of the units and the water diversion gate of the hydropower station in an emergency situation is realized, and the water diversion flow in an emergency situation is effectively controlled. Moreover, through the automatic emergency dispatch, countermeasures can be taken in the shortest time to prevent the imbalance of water level and flow in the water diversion channel, and avoid the influence of excessive water level changes in the channel on the stability and safety of the main channel slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 is a schematic diagram of an application scenario of a hydropower station emergency dispatching method provided in some embodiments of the present application;

[0022] Figure 2 is a flow chart of a hydropower station emergency dispatching method provided in some embodiments of the present application;

[0023] Figure 3is a schematic diagram of a flow chart of a combined flow of a dispatching unit and a water diversion gate provided in some embodiments of the present application;

[0024] Figure 4 It is a schematic diagram of the flow of the combined flow of the dispatching unit and the water diversion gate provided in other embodiments of the present application;

[0025] Figure 5 is a flow chart of flow feedback adjustment provided in some embodiments of the present application;

[0026] Figure 6 is a schematic diagram of a flow chart for calculating the upstream and downstream water level difference provided in some embodiments of the present application;

[0027] Figure 7 is a schematic diagram of a water level-flow relationship curve provided in some embodiments of the present application;

[0028] Figure 8 is a flow chart of a hydropower station emergency dispatching method provided in other embodiments of the present application;

[0029] Fig. 9 is a schematic diagram of the structure of a hydropower station emergency dispatching device provided in some embodiments of the present application;

[0030] Fig.10 It is a schematic diagram of the structure of a computer device provided in some embodiments of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0032] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Many water conservancy projects take into account multiple functions such as power generation and water diversion (flood discharge). The water-passing structures of this type of water conservancy hub include two types of buildings: units and diversion gates (flood discharge gates), and both buildings discharge flow. In the past operation process, when the generator set was shut down urgently, the diversion gate could not be quickly started to balance the flow, which would cause large fluctuations in the water level and flow in the diversion channel, or cause sudden changes in the flood discharge flow. Excessive water level changes in the channel will cause safety hazards to the stability of the main channel slope. In response to this problem, the present invention proposes an emergency scheduling scheme for power generation and water diversion (flood discharge) hubs, and proposes an adaptive emergency scheduling strategy based on the water level and flow relationship between the power station units and the diversion gates, as well as the generator set restrictions and diversion gate opening conditions, to shorten the emergency response time and take the most effective response measures in the shortest time to restore the target requirements for the flow entering the main canal, or restore the flood discharge flow.

[0034] In view of this, the present application provides an emergency dispatching method for a hydropower station, which realizes the automatic generation of emergency plans for water transfer (flood discharge) flow dispatching in emergency situations, shortens the emergency response time, and controls the water diversion gate (flood discharge gate) to immediately open and replenish water, and takes the most effective response measures in the shortest time to restore the target requirements of the flow entering the main canal, or restore the flood discharge flow.

[0035] Specifically, the embodiment of the present application will be described from the perspective of a hydropower station emergency dispatching device, which can be integrated into a computer device, that is, the hydropower station emergency dispatching method of the embodiment of the present application can be executed by a computer device, and optionally, the computer device can include: a terminal device. The terminal device can be various personal computers, laptops, smart phones, tablet computers, etc.

[0036] The hydropower station emergency dispatching method provided in the embodiment of the present application can be applied to Figure 1 In the hydropower station emergency dispatch system shown in the figure, the hydropower station emergency dispatch system may include a computer device 102 and a server 104. The computer device 102 may be a device including both receiving and transmitting hardware, that is, a device having receiving and transmitting hardware capable of performing two-way communication on a two-way communication link. The computer device 102 and the server 104 may perform two-way communication via a network.

[0037] Optionally, the server may be an independent server, or a server network or server cluster composed of servers, including but not limited to a computer, a network host, a single network server, a plurality of network server sets or a cloud server composed of a plurality of servers. The cloud server is composed of a large number of computers or network servers based on cloud computing.

[0038] The following is a detailed description in conjunction with the accompanying drawings. In the embodiments of the present application, the execution subject is a computer device as an example. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments. Although the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in an order different from that shown in the accompanying drawings.

[0039] Please refer to Figure 2 The specific process of the hydropower station emergency dispatch method can be as follows: Step S201 to Step S204, wherein:

[0040] Step S201: when at least one unit of the hydropower station is shut down, determine a normal unit.

[0041] Step S202, obtaining the upstream and downstream water level difference; the upstream and downstream water level difference is obtained based on the current upstream water level and the current downstream water level of the hydropower station.

[0042] Step S203: If the upstream and downstream water level difference meets the preset range conditions, the normal unit is dispatched to flow.

[0043] Step S204: If the upstream and downstream water level difference does not meet the preset range conditions, the normal units are dispatched to jointly flow through the water diversion gate.

[0044] When at least one generating unit (hereinafter referred to as the unit) is shut down, the goal is to immediately increase the flow of other units and / or open or increase the flow of the water diversion gate to restore the balance of water diversion flow in the shortest time.

[0045] Therefore, when at least one unit of the hydropower station is shut down, the computer device first determines the shutdown status of the unit, such as whether one unit is shut down or multiple units are shut down at the same time. When the computer device determines that the unit is shut down, an alarm is issued. In some embodiments, in order to avoid misjudgment, the computer device can perform automated emergency dispatch after manual confirmation.

[0046] Assume that there are n generators of the same model in a hydropower station. When x generators are shut down, it is assumed that the number of normal generators is i=nx. Normal generators refer to generators that are operating normally except for the shut down generators. The computer device determines the normal generators, including but not limited to determining the number and working status of the normal generators.

[0047] Specifically, the computer equipment collects the current upstream water level H u 、Current downstream water level H d , and obtain the current water diversion flow Q, and calculate the predicted downstream water level H under the current water diversion flow Q d0 , the predicted downstream water level H d0 It can be used as the normal tailwater level of the unit and the water level behind the energy dissipation pool downstream of the diversion gate.

[0048] Then, the computer device calculates the current upstream water level H u and predicted downstream water level H d0 , calculate the water level difference between upstream and downstream. The water level difference between upstream and downstream refers to the height difference between water levels. Once the water level difference between upstream and downstream is large, it is easy to cause floods downstream.

[0049] For example, the upstream and downstream water level difference can be calculated by the following formula (1):

[0050] ΔH=H u -H d0 (1)

[0051] Among them, ΔH is the difference in water level between upstream and downstream.

[0052] Computer equipment determines whether the normal unit is generating electricity. If the upstream and downstream water level difference is within the normal head range of the normal unit, the normal unit will be dispatched to generate electricity and participate in the operation dispatch; conversely, if the upstream and downstream water level difference is not within the normal head range of the normal unit, the normal unit will not generate electricity, and all water diversion flows in the hub will be discharged from the diversion gate.

[0053] Therefore, the computer equipment determines whether the upstream and downstream water level difference meets the preset range conditions. If so, it means that the upstream and downstream water level difference is within the head range of normal operation of the normal unit, and the normal unit is dispatched to pass the flow; conversely, if the upstream and downstream water level difference does not meet the preset range conditions, if the normal unit's flow rate is too large, it will cause the normal unit to vibrate, affecting the stability and life of the equipment, and there will be safety risks. Therefore, at this time, it is necessary to jointly dispatch the normal unit and the water diversion gate to avoid the normal unit working in the vibration range.

[0054] After completing the emergency dispatch, the computer equipment monitors the water level and flow status of the hub power station and channel in real time. After maintaining stability, it will enter the normal dispatch operation state and carry out unit fault inspection and maintenance.

[0055] The hydropower station emergency dispatch method provided in the embodiment of the present application determines the normal units and obtains the upstream and downstream water level difference when at least one unit in the hydropower station is shut down, and makes a comparison and determination based on the upstream and downstream water level difference and the preset range conditions. If the upstream and downstream water level difference meets the preset range conditions, the normal units are dispatched to pass the flow; if the upstream and downstream water level difference does not meet the preset range conditions, the normal units are dispatched together with the water diversion gate to pass the flow, thereby realizing the automated emergency dispatch of the units and the water diversion gate of the hydropower station in an emergency situation, effectively controlling the water diversion flow in an emergency situation, and through the automated emergency dispatch, countermeasures can be taken in the shortest time to prevent the imbalance of water level and flow in the water diversion channel, and avoid the influence of excessive water level changes in the channel on the stability and safety of the main channel slope.

[0056] The flow rate of a normal unit will be restricted in two aspects during normal operation. On the one hand, the normal unit is limited by the maximum output. On the other hand, in order to avoid the normal unit working in the vibration range, the flow rate of a normal unit is limited by the output limit line.

[0057] Therefore, if Figure 3 As shown, in some embodiments, if the upstream and downstream water level difference does not meet the preset range conditions, the normal unit is dispatched to jointly flow with the water diversion gate, including the following steps S301 to S304:

[0058] Step S301, obtaining the current water diversion flow rate;

[0059] Step S302, if the upstream and downstream water level difference is greater than the first threshold, determine the unit output based on the current water diversion flow, and dispatch normal units and / or diversion gates to pass the flow based on the unit output;

[0060] Step S303, if the upstream and downstream water level difference is less than the second threshold, determine the maximum allowable flow rate of each normal unit, and determine the maximum allowable total flow rate of each unit;

[0061] Step S304: based on the maximum allowable total flow rate, dispatch normal units and / or diversion gates to pass the flow.

[0062] Under the condition that the upstream and downstream water level difference is higher than a certain value, a normal unit may vibrate due to excessive flow, so the normal unit will be limited by the output limit line; and under the condition that the upstream and downstream water level difference is lower than a certain value, the normal unit will not be limited by the output limit line, and its flow rate will only be limited by the maximum output. The first threshold value can be greater than or equal to the maximum value in the preset range indicated by the preset range condition.

[0063] Specifically, the computer device determines whether the normal unit is subject to output restriction, and decides how to dispatch the output of the normal unit. The computer device determines a first threshold, and compares the upstream and downstream water level difference with the first threshold. The first threshold may be a preset value.

[0064] If the upstream and downstream water level difference is greater than the first threshold, the normal unit is limited by the maximum output. At this time, the power station's flow capacity may not be able to meet the water diversion flow demand. Therefore, it is necessary to determine whether the flow rate of the normal unit meets the water diversion flow requirement.

[0065] Therefore, the computer device determines the unit output based on the current water diversion flow, and dispatches the normal units and / or the water diversion gate to flow based on the unit output. Dispatching the normal units and / or the water diversion gate to flow includes but is not limited to all normal units flowing, or normal units and the water diversion gate flowing together.

[0066] If the upstream and downstream water level difference is less than the second threshold, it means that the flow rate of the unit is limited by the output limit line to prevent the unit from operating in the vibration range, thereby posing a safety hazard. The second threshold may be less than or equal to the minimum value in the preset range indicated by the preset range condition.

[0067] The computer equipment determines the maximum allowable flow rate Q of each normal unit. max_i , and determine the maximum allowable total flow rate according to the sum of the maximum allowable flow rate of each normal unit. Therefore, the computer device dispatches the normal units and / or the water diversion gate to flow based on the maximum allowable total flow rate.

[0068] Wherein, in some embodiments, Figure 4 As shown, based on the unit output, normal units and / or diversion gates are dispatched to overflow, including:

[0069] Step S401, if the unit output is less than or equal to the maximum output, all normal units are dispatched to overcurrent;

[0070] Step S402: if the unit output is greater than the maximum output, determine the flow rate of each unit according to the maximum output, and dispatch the flow of each unit according to the flow rate of each unit; wherein the sum of the flow rate of each unit is the total flow rate;

[0071] Step S403, determining the diversion gate flow rate according to the total flow rate through the machine, and scheduling the diversion gate flow according to the diversion gate flow rate.

[0072] Specifically, the computer device determines the unit output N of the normal unit according to the current water diversion flow Q, and compares the output N with the maximum output N. max For comparison. Maximum output N max is the rated value.

[0073] If N≤N max , indicating that the flow rate of the normal unit can meet the water diversion flow requirement, then the computer equipment dispatches all normal units to output, the water diversion flow all passes through the normal units, the water diversion gate does not divert water, and the emergency dispatch process is completed. Among them, the output of each normal unit is N i ; When there are i normal units, the i normal units have equal output.

[0074] For example, the relationship between the unit output N and the flow rate through the unit satisfies the following formula (2):

[0075] N=ρgΔHQ p η (2)

[0076] Among them, ρ is the density of water, g is the acceleration of gravity, ΔH is the difference in water level between upstream and downstream, and Q pis the flow rate through the machine, and η is the unit operating efficiency. The unit operating efficiency is obtained by a pre-established efficiency curve fitting model. The efficiency curve fitting model takes the unit flow rate and unit head as independent variables and the unit operating efficiency as the dependent variable, constructs a binary quadratic polynomial fitting function, and estimates the parameters through the least squares method to obtain the solution.

[0077] If N>N max , indicating that the current water diversion flow exceeds the limit of the normal unit's flow. At this time, in order to ensure the safe operation of the normal unit, it is necessary to limit the output of the normal unit, that is, to determine the output of each normal unit according to the maximum output. In the extreme case, the output of each normal unit is the maximum output, that is, N i =N max The computer equipment can calculate the flow rate Q of each normal unit based on the maximum output of the normal unit. pi Then, the computer equipment dispatches the normal units to operate according to the flow rate.

[0078] The computer equipment calculates the flow rate Q of each normal unit pi The total flow rate Q is obtained by adding p , according to the total flow rate Q p The flow rate that needs to be diverted by the water diversion gate can be determined, that is, the water diversion gate flow rate Q s .

[0079] For example, the flow rate of the water diversion gate can be calculated by the following formula (3):

[0080] Q s =QQ p (3)

[0081] Thus, the computer equipment can schedule the flow of the water diversion gate according to the flow of the water diversion gate, including controlling the opening of the water diversion gate, or increasing the opening of one or more gates of the water diversion gate.

[0082] Therefore, by judging whether the upstream and downstream water level difference is greater than the first threshold value when the upstream and downstream water level difference does not meet the preset range conditions, it is possible to judge whether the flow rate passing through the normal unit may be too large, resulting in potential risks of vibration of the normal unit, and determine the output of the normal unit. In this way, the normal unit is dispatched to pass the flow alone or to divert water in conjunction with the water diversion gate, thereby ensuring the safe operation of the normal unit and ensuring that it is subject to the output limit line.

[0083] If the upstream and downstream water level difference is less than the second threshold, then in some embodiments, based on the maximum allowable total flow rate, the normal units and / or the diversion gate are dispatched to flow, such as Figure 5 As shown, it includes the following steps S501 to S503:

[0084] Step S501, if the maximum allowable total flow rate is greater than the current water diversion flow rate, all normal units are dispatched to flow;

[0085] Step S502: if the maximum allowable total flow rate is less than or equal to the current water diversion flow rate, dispatch the flow of each normal unit according to the maximum allowable total flow rate;

[0086] Step S503, determining the diversion gate flow rate according to the maximum allowable total flow rate through the machine, and scheduling the diversion gate flow according to the diversion gate flow rate.

[0087] Specifically, the computer equipment calculates the maximum allowable flow rate Q of each normal unit. max_i , determine the maximum allowable total flow rate, that is, the sum of the maximum allowable flow rates of all normal units∑Q max_i .

[0088] The computer equipment will set the maximum allowable total flow rate ∑Q max_i Compared with the current diversion flow Q, if ∑Q max_i >Q, indicating that the current water diversion flow can all pass through the unit. At this time, the computer equipment can calculate the flow rate of each normal unit i (i = nx, x is the number of shutdown units) among the n units by the following formula (4):

[0089] Q pi =Q / nx (4)

[0090] Then the computer equipment can calculate the output of the normal unit according to the flow rate of each normal unit and the above formula (2). Among them, the output of each normal unit is N i ; When there are i normal units, i normal units are equal in output. At this time, the water diversion gate does not divert water, and the emergency dispatch process is completed.

[0091] If ∑Q max_i ≤Q, indicating that the current water diversion flow requires the joint dispatch of normal units and diversion gates. In order to ensure the safe operation of normal units, the computer equipment determines the flow rate of each normal unit according to the maximum allowable total flow rate, that is, Q pi =∑Q max_i The computer equipment can further calculate the output N of each normal unit according to the flow rate of each normal unit. i , and accordingly control the normal units to over-current. When there are i normal units, the i normal units have equal output.

[0092] Then, the computer device can determine the flow rate required for the water diversion gate to divert water based on the maximum allowable total flow rate, that is, the water diversion gate flow rate. At this time, the calculation of the water diversion gate flow rate can be calculated by referring to formula (3).

[0093] Thus, the computer equipment can schedule the flow of the water diversion gate according to the flow of the water diversion gate, including controlling the opening and closing of the water diversion gate, the opening of one or more gates of the water diversion gate, etc.

[0094] In the above embodiment, when the upstream and downstream water level difference does not meet the preset range conditions, it is determined whether the upstream and downstream water level difference is less than the second threshold value, thereby determining whether the normal unit has the potential risk of operating in the vibration range, ensuring that it is subject to the output limit line, and thereby dispatching the normal unit to conduct a single flow or to divert water in conjunction with the water diversion gate, thereby ensuring the safe operation of the normal unit.

[0095] In some embodiments, the flow of the water diversion gate is scheduled according to the flow rate of the water diversion gate, including: determining the maintenance status of the water diversion gate; when the water diversion gate is not in the maintenance status, obtaining the first current opening of each hole gate of the water diversion gate, and obtaining a first adjustment amount; determining a first target opening based on the first current opening and the first adjustment amount, and adjusting each hole gate to the first target opening at the same time.

[0096] In the event of an emergency of unit shutdown, the fastest way to restore water supply flow is to open or increase the opening of each gate of the diversion gate at the same time. Therefore, the computer equipment obtains the maintenance information of the diversion gate, determines the maintenance status of the diversion gate, determines the number of gates to be opened according to the maintenance status of the diversion gate, and calculates the emergency opening increase value of each gate, that is, the adjustment amount Δe, so as to open or increase the opening of the diversion gate and quickly restore the diversion flow.

[0097] Therefore, the computer device determines whether the water diversion gate is in a maintenance state, and determines the available water diversion gate based on this, and further determines the opening adjustment amount Δe of the available water diversion gate.

[0098] Therefore, the gates of the water diversion gates are controlled to divert water through the maintenance information of the water diversion gates, ensuring that each water diversion gate meets both the safety inspection conditions and the scheduling principles, and ensuring the structural safety of the gates.

[0099] The opening adjustment amount includes a first adjustment amount and a second adjustment amount. In some embodiments, according to the maintenance information of the water diversion gate and the flow of the water diversion gate, the flow of each available water diversion gate is scheduled, including: when the water diversion gate is not in a maintenance state, obtaining the first current opening of each hole gate of the water diversion gate, and obtaining the first adjustment amount; determining the first target opening based on the first current opening and the first adjustment amount, and adjusting each hole gate to the first target opening at the same time; when at least one hole gate of the water diversion gate is in a maintenance state, obtaining the second current opening of the remaining gates, and obtaining the second adjustment amount; determining the second target opening based on the second current opening and the second adjustment amount, and adjusting the remaining gates to the second target opening at the same time.

[0100] Specifically, if the water diversion gate is not under maintenance and all water diversion gates are available, the computer device calculates the first adjustment amount of each gate based on the water diversion gate flow and the number of water diversion gates. Thus, the computer device controls the water diversion gate to adjust from the first current opening to the first target opening, and the first target opening is the sum of the first current opening and the first adjustment amount.

[0101] If a water diversion gate is under maintenance, for example, y-hole gates are under maintenance, the computer device obtains the number of remaining available water diversion gates my, and calculates the second adjustment amount of each remaining gate according to the water diversion gate flow and the number of available water diversion gates. Thus, the computer device controls the remaining gates to adjust from the second current opening to the second target opening, and the second target opening is the sum of the second current opening and the second adjustment amount.

[0102] Taking the actual dispatching principle as an example, if only one of the three gates of the water diversion gate is allowed to be repaired in the same period, then the computer device will determine whether one of the water diversion gates is under maintenance; if one of the water diversion gates is under maintenance, the computer device will increase the opening of the other two water diversion gates. Since the gate is prone to flow-induced vibration when operating at a small opening, which is not conducive to the safety of the gate structure, the computer device can control the opening of the water diversion gate to at least exceed the preset value, for example, not less than 20cm.

[0103] In the above embodiment, by controlling the water diversion conditions of each gate, adaptive regulation of the water diversion gate flow is achieved, which can ensure the normal operation of the generator set while ensuring that the downstream flow meets the water scheduling requirements.

[0104] In actual operation, if the unit shuts down, the computer equipment can also sound an alarm through the alarm device and conduct manual confirmation, and then execute the above-mentioned emergency dispatch process after manual confirmation.

[0105] In some embodiments, Figure 6 As shown, obtaining the upstream and downstream water level difference includes steps S601 to S604:

[0106] Step S601, obtaining historical dispatching data; the historical dispatching data includes historical upstream water level, historical downstream water level and historical water diversion flow;

[0107] Step S602, predicting based on historical dispatching data to obtain a predicted downstream water level;

[0108] Step S603: taking the difference between the current upstream water level and the predicted downstream water level as the upstream and downstream water level difference.

[0109] Among them, in some embodiments, the computer device makes predictions based on historical scheduling data to obtain a predicted downstream water level, including: generating a water level-flow relationship curve based on the historical scheduling data, and making predictions based on the water level-flow relationship curve to obtain a predicted downstream water level.

[0110] Further, in some embodiments, the computer device generates a water level-flow relationship curve according to historical scheduling data, and makes predictions based on the water level-flow relationship curve to obtain a predicted downstream water level, which may include: generating a water level-flow relationship curve according to historical upstream water levels, historical downstream water levels and historical water diversion flows; and predicting the water level-flow relationship curve based on the current upstream water level, the current downstream water level and the current water diversion flow to obtain a predicted downstream water level.

[0111] Specifically, the computer device obtains the historical upstream water level, the historical downstream water level and the historical water diversion flow, and performs fitting based on the historical upstream water level, the historical downstream water level and the historical water diversion flow, thereby generating a water level-flow relationship curve. For example, Figure 7 As shown in the figure, the relationship between the water level and flow rate of a hub control section can be fitted into a curve. Therefore, the computer equipment can make predictions based on the water level and flow rate relationship curve generated by the fitting, and substitute the current upstream water level, the current downstream water level and the current water diversion flow rate into the water level and flow rate relationship curve to deduce the downstream water level after the water diversion flow rate changes, that is, predict the downstream water level.

[0112] Furthermore, the computer device can calculate the upstream and downstream water level difference based on the current upstream water level and the predicted downstream water level. That is, the computer device uses the difference between the current upstream water level and the predicted downstream water level as the upstream and downstream water level difference.

[0113] In the above embodiment, a water level-flow relationship curve is generated by fitting historical data, and the predicted downstream water level is obtained by combining the currently collected data, so that the calculation of the upstream and downstream water level difference is accurate and consistent with the actual change trend, thereby improving the accuracy of scheduling.

[0114] In a specific embodiment, please refer to Figure 8 The hydropower station emergency dispatch method provided in the embodiment of the present application may include the following steps:

[0115] Step S801, collect the current upstream water level H u , downstream water level H d , and obtain the current water diversion flow Q;

[0116] Step S802: During the normal operation of the unit, the computer equipment calculates the international flow rate Q of each unit respectively. pj , and calculate the diversion gate flow Q when the group and the diversion gate are combined with the flow s =QQ pj ;

[0117] Step S803, when the unit shuts down, the computer device issues a shutdown alarm for manual confirmation by the operator;

[0118] Step S804: manual confirmation by an operator;

[0119] Step S805: The computer device determines the number of shutdown units. Assuming that the hydropower station has n units in total, when x units are shut down, the remaining i (i=nx) units are operating normally. The computer device then calculates the flow rate Q required to be increased by the diversion gate and the normal units respectively. pi ;

[0120] Step S806: When all units are shut down, the computer equipment calculates and determines the water diversion gate flow rate Q' s =Q s +Q pi +Q pj +…;

[0121] Step S807, calculating the upstream and downstream water level difference ΔH, and determining whether the upstream and downstream water level difference ΔH meets the unit output range; if so, executing step S808, otherwise executing step S8012;

[0122] Step S808: The maximum allowed total flow rate of the computer group ΣQ max_i , and judge whether the maximum allowable total flow through the machine is greater than the current water diversion flow, that is, ΣQ max_i >Q; If yes, execute step S809, otherwise execute step S8010;

[0123] Step S809, calculate the actual output N of the normal unit i , and end the emergency dispatch process;

[0124] Step S8010, determine the flow rate of each normal unit, i.e. Q pi =Q max_i ;

[0125] Step S8011, calculate the actual output N of the normal unit i ;

[0126] Step S8012, determine whether the unit output is greater than the maximum output, that is, N>N max , if yes, execute step S8013, otherwise execute step S8015;

[0127] Step S8013, determine the actual output N of the normal unit i =N max ;

[0128] Step S8014, iteratively solve the normal unit flow rate Qpi ;

[0129] Step S8015: actual output of the computer group N i , and end the emergency dispatch process;

[0130] Step S8016, determine the water diversion gate flow Q s ′; When x units are shut down, the diversion gate flow rate Q s ′=QQ pi ; When all units are shut down, the diversion gate flow Q′ s =Q s +Q pi +Q pj +…;

[0131] Step S8017, determine whether the water diversion gate is under maintenance; if so, execute step S8018, otherwise execute step S8019;

[0132] Step S8018, assuming that the actual scenario is that the water diversion gates of the m holes have the same size, and the water diversion gates of the y holes are under maintenance, then the increased opening (i.e., the second adjustment amount) of the water diversion gates of the my holes is calculated, where the gates of the my holes are of the same height, and the emergency dispatch process is terminated;

[0133] Step S8019, calculate the opening of the m-hole water diversion gates, where the m-hole gates are of the same height, and end the emergency dispatch process.

[0134] Through the hydropower station emergency dispatch method provided in the embodiment of the present application, the automated emergency dispatch of the units and the water diversion gates of the hydropower station in emergency situations is realized, the water diversion flow in emergency situations is effectively controlled, and through automated emergency dispatch, response measures can be taken in the shortest time to prevent imbalance in the water level and flow in the water diversion channel, and avoid the impact of excessive water level changes in the channel on the stability and safety of the main channel slope.

[0135] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0136] Based on the same inventive concept, the embodiment of the present application also provides a hydropower station emergency dispatching device, which can be integrated in a terminal device to implement the hydropower station emergency dispatching method mentioned above. Fig. 9 As shown, the hydropower station emergency dispatching device may include a determination module 901, an acquisition module 902 and a dispatching module 903, wherein:

[0137] The determination module 901 is used to determine a normal unit when at least one unit in the hydropower station is shut down.

[0138] The acquisition module 902 is used to acquire the upstream and downstream water level difference; the upstream and downstream water level difference is obtained based on the current upstream water level and the current downstream water level of the hydropower station.

[0139] The scheduling module 903 is used to schedule the normal unit to flow if the upstream and downstream water level difference meets the preset range conditions.

[0140] The dispatching module 903 is also used to dispatch the normal units and the water diversion gate to jointly pass the flow if the upstream and downstream water level difference does not meet the preset range conditions.

[0141] In some embodiments, the scheduling module is also used to obtain the current water diversion flow rate; if the upstream and downstream water level difference is greater than a first threshold, the unit output is determined based on the current water diversion flow rate, and based on the unit output, the normal units and / or water diversion gates are scheduled to pass the flow; if the upstream and downstream water level difference is less than a second threshold, the maximum allowable flow rate of each normal unit is determined, and the maximum allowable total flow rate is determined; based on the maximum allowable total flow rate, the normal units and / or water diversion gates are scheduled to pass the flow.

[0142] In some embodiments, the scheduling module is also used to schedule all normal units to pass current if the unit output is less than or equal to the maximum output; if the unit output is greater than the maximum output, determine the flow rate of each unit according to the maximum output, and schedule the flow of each unit according to the flow rate of each unit; wherein the sum of the flow rate of each unit is the total flow rate; determine the diversion gate flow rate according to the total flow rate, and schedule the diversion gate flow according to the diversion gate flow rate.

[0143] In some embodiments, the scheduling module is also used to schedule all normal units to pass the flow if the maximum allowable total flow rate is greater than the current water diversion flow rate; if the maximum allowable total flow rate is less than or equal to the current water diversion flow rate, schedule the flow of each normal unit according to the maximum allowable total flow rate; determine the diversion gate flow rate according to the maximum allowable total flow rate, and schedule the diversion gate flow according to the diversion gate flow rate.

[0144] In some embodiments, the scheduling module is also used to determine the maintenance status of the water diversion gate; when the water diversion gate is not in the maintenance status, obtain the first current opening of each hole gate of the water diversion gate, and obtain the first adjustment amount; determine the first target opening based on the first current opening and the first adjustment amount, and adjust each hole gate to the first target opening at the same time.

[0145] In some embodiments, the scheduling module is also used to obtain the second current opening of the remaining gates and the second adjustment amount when at least one gate of the water diversion gate is under maintenance; determine the second target opening based on the second current opening and the second adjustment amount, and adjust the remaining gates to the second target opening at the same time.

[0146] In some embodiments, the acquisition module is also used to obtain historical scheduling data; the historical scheduling data includes historical upstream water levels, historical downstream water levels and historical water diversion flows; predictions are made based on the historical scheduling data to obtain predicted downstream water levels; the difference between the current upstream water level and the predicted downstream water level is used as the upstream and downstream water level difference.

[0147] Each module in the above-mentioned hydropower station emergency dispatching device can be implemented in whole or in part by software, hardware and their combination. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0148] Correspondingly, an embodiment of the present application also provides a computer device, which may be a terminal device or a server.

[0149] like Fig.10 As shown, Fig.10 A schematic diagram of the structure of a computer device provided in an embodiment of the present application. The computer device 1000 includes a processor 1001 having one or more processing cores, a memory 1002 having one or more computer-readable storage media, and a computer program stored in the memory 1002 and executable on the processor. The processor 1001 is electrically connected to the memory 1002. Those skilled in the art will appreciate that the computer device structure shown in the figure does not constitute a limitation on the computer device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently.

[0150] The processor 1001 is the control center of the computer device 1000, and uses various interfaces and lines to connect various parts of the entire computer device 1000. By running or loading software programs and / or units stored in the memory 1002, and calling data stored in the memory 1002, the processor 1001 executes various functions of the computer device 1000 and processes data, thereby monitoring the computer device 1000 as a whole. The processor 1001 can be a central processing unit CPU, a graphics processing unit GPU, a network processor (Network Processor, NP), etc., and can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application.

[0151] In an embodiment of the present application, the processor 1001 in the computer device 1000 will load the instructions corresponding to the processes of one or more applications into the memory 1002 according to the following steps, and the processor 1001 will run the application stored in the memory 1002 to implement various functions, such as: when at least one unit of the hydropower station is shut down, determine the normal unit; obtain the upstream and downstream water level difference; the upstream and downstream water level difference is obtained based on the current upstream water level and the current downstream water level of the hydropower station; if the upstream and downstream water level difference meets the preset range conditions, dispatch the normal unit to flow; if the upstream and downstream water level difference does not meet the preset range conditions, dispatch the normal unit and the water diversion gate to jointly flow.

[0152] In some embodiments, the processor 1001 runs an application stored in the memory 1002 to implement the following steps: obtaining the current water diversion flow; if the upstream and downstream water level difference is greater than a first threshold, determining the unit output based on the current water diversion flow, and based on the unit output, dispatching normal units and / or water diversion gates to pass the flow; if the upstream and downstream water level difference is less than a second threshold, determining the maximum allowable flow rate of each normal unit, and determining the maximum allowable total flow rate; based on the maximum allowable total flow rate, dispatching normal units and / or water diversion gates to pass the flow.

[0153] In some embodiments, the processor 1001 runs an application stored in the memory 1002 to implement the following steps: if the unit output is less than or equal to the maximum output, all normal units are scheduled to pass current; if the unit output is greater than the maximum output, the flow rate of each unit passing through the machine is determined according to the maximum output, and the flow rate of each unit is scheduled according to the flow rate of each unit; wherein the sum of the flow rate of each unit passing through the machine is the total flow rate; the water diversion gate flow rate is determined according to the total flow rate, and the water diversion gate flow rate is scheduled according to the water diversion gate flow rate.

[0154] In some embodiments, the processor 1001 runs an application program stored in the memory 1002 to implement the following steps: if the maximum allowable total flow rate is greater than the current water diversion flow rate, all normal units are scheduled to pass the flow; if the maximum allowable total flow rate is less than or equal to the current water diversion flow rate, each normal unit is scheduled to pass the flow according to the maximum allowable total flow rate; the diversion gate flow rate is determined according to the maximum allowable total flow rate, and the diversion gate flow rate is scheduled according to the diversion gate flow rate.

[0155] In some embodiments, the processor 1001 runs an application stored in the memory 1002 to implement the following steps: determining the maintenance status of the water diversion gate; when the water diversion gate is not in the maintenance status, obtaining the first current opening of each hole gate of the water diversion gate, and obtaining the first adjustment amount; determining the first target opening based on the first current opening and the first adjustment amount, and adjusting each hole gate to the first target opening at the same time

[0156] In some embodiments, the processor 1001 runs an application stored in the memory 1002 to implement the following steps: when at least one gate of the water diversion gate is under maintenance, the second current opening of the remaining gates is obtained, and the second adjustment amount is obtained; the second target opening is determined based on the second current opening and the second adjustment amount, and the remaining gates are adjusted to the second target opening at the same time.

[0157] In some embodiments, the processor 1001 runs an application stored in the memory 1002 to implement the following steps: obtaining historical scheduling data; the historical scheduling data includes historical upstream water levels, historical downstream water levels and historical water diversion flows; making predictions based on the historical scheduling data to obtain predicted downstream water levels; and taking the difference between the current upstream water level and the predicted downstream water level as the upstream and downstream water level difference.

[0158] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0159] Alternatively, if Fig.10 As shown, the computer device 1000 further includes: a touch screen 1003, a radio frequency circuit 1004, an audio circuit 1005, an input unit 1006, and a power supply 1007. The processor 1001 is electrically connected to the touch screen 1003, the radio frequency circuit 1004, the audio circuit 1005, the input unit 1006, and the power supply 1007, respectively. Those skilled in the art can understand that Fig.10 The computer device structure shown in the figure does not constitute a limitation on the computer device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0160] The touch display screen 1003 can be used to display a graphical user interface and receive operation instructions generated by the user acting on the graphical user interface. The touch display screen 1003 may include a display panel and a touch panel. Among them, the display panel can be used to display information input by the user or information provided to the user and various graphical user interfaces of the computer device, and these graphical user interfaces can be composed of graphics, text, icons, videos and any combination thereof. Optionally, the display panel can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc. The touch panel can be used to collect the user's touch operation on or near it (such as the user uses any suitable object or attachment such as a finger, a stylus, etc. on the touch panel or near the touch panel), and generate corresponding operation instructions, and the operation instructions execute corresponding programs. Optionally, the touch panel may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 1001, and can receive the command sent by the processor 1001 and execute it. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it is transmitted to the processor 1001 to determine the type of touch event, and then the processor 1001 provides a corresponding visual output on the display panel according to the type of touch event. In an embodiment of the present application, the touch panel and the display panel can be integrated into the touch display screen 1003 to realize the input and output functions. However, in some embodiments, the touch panel and the touch panel can be used as two independent components to realize the input and output functions. That is, the touch display screen 1003 can also be used as a part of the input unit 1006 to realize the input function.

[0161] The radio frequency circuit 1004 may be used to send and receive radio frequency signals, so as to establish wireless communication with a network device or other computer devices through wireless communication, and to send and receive signals between the network device or other computer devices.

[0162] The audio circuit 1005 can be used to provide an audio interface between the user and the computer device through a speaker and a microphone. The audio circuit 1005 can transmit the electrical signal converted from the received audio data to the speaker, which is converted into a sound signal for output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 1005 and converted into audio data, and then the audio data is output to the processor 1001 for processing, and then sent to another computer device through the radio frequency circuit 1004, or the audio data is output to the memory 1002 for further processing. The audio circuit 1005 may also include an earphone jack to provide communication between an external headset and the computer device.

[0163] The input unit 1006 may be used to receive input numbers, character information or user feature information (such as fingerprint, iris, facial information, etc.), and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.

[0164] The power supply 1007 is used to supply power to various components of the computer device 1000. Optionally, the power supply 1007 can be logically connected to the processor 1001 through a power management system, so that the power management system can manage charging, discharging, and power consumption. The power supply 1007 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0165] although Fig.10 Not shown, the computer device 1000 may also include a camera, a sensor, a wireless fidelity module, a Bluetooth module, etc., which will not be described in detail here.

[0166] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0167] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0168] To this end, the embodiment of the present application provides a computer-readable storage medium, in which a plurality of computer programs are stored, and the computer program can be loaded by a processor to execute any one of the hydropower station emergency dispatch methods provided by the embodiment of the present application. For example, the computer program can execute the following steps of the hydropower station emergency dispatch method: when at least one unit of the hydropower station is shut down, determine the normal unit; obtain the upstream and downstream water level difference; the upstream and downstream water level difference is obtained based on the current upstream water level and the current downstream water level of the hydropower station; if the upstream and downstream water level difference meets the preset range condition, dispatch the normal unit to flow; if the upstream and downstream water level difference does not meet the preset range condition, dispatch the normal unit and the water diversion gate to flow together.

[0169] In some embodiments, the computer program is executed and implements the following steps when loaded by the processor: obtaining the current water diversion flow rate; if the upstream and downstream water level difference is greater than a first threshold, determining the unit output based on the current water diversion flow rate, and based on the unit output, dispatching normal units and / or water diversion gates to pass the flow; if the upstream and downstream water level difference is less than a second threshold, determining the maximum allowable flow rate of each normal unit, and determining the maximum allowable total flow rate; based on the maximum allowable total flow rate, dispatching normal units and / or water diversion gates to pass the flow.

[0170] In some embodiments, the computer program is executed when loaded by the processor and implements the following steps: if the unit output is less than or equal to the maximum output, all normal units are dispatched to pass the flow; if the unit output is greater than the maximum output, the flow rate of each unit is determined according to the maximum output, and the flow of each unit is dispatched according to the flow rate of each unit; wherein the sum of the flow rate of each unit is the total flow rate; the water diversion gate flow is determined according to the total flow rate, and the water diversion gate flow is dispatched according to the water diversion gate flow.

[0171] In some embodiments, when the computer program is loaded by the processor, it is executed and implements the following steps: if the maximum allowable total flow rate is greater than the current water diversion flow rate, all normal units are scheduled to pass the flow; if the maximum allowable total flow rate is less than or equal to the current water diversion flow rate, each normal unit is scheduled to pass the flow according to the maximum allowable total flow rate; the diversion gate flow rate is determined according to the maximum allowable total flow rate, and the diversion gate flow rate is scheduled according to the diversion gate flow rate.

[0172] In some embodiments, the computer program is executed when loaded by the processor and implements the following steps: determining the maintenance status of the water diversion gate; when the water diversion gate is not in the maintenance status, obtaining the first current opening of each hole gate of the water diversion gate, and obtaining the first adjustment amount; determining the first target opening based on the first current opening and the first adjustment amount, and adjusting each hole gate to the first target opening at the same time

[0173] In some embodiments, the computer program is executed when loaded by the processor and implements the following steps: when at least one gate of the water diversion gate is under maintenance, the second current opening of the remaining gates is obtained, and the second adjustment amount is obtained; the second target opening is determined based on the second current opening and the second adjustment amount, and the remaining gates are adjusted to the second target opening at the same time.

[0174] In some embodiments, the computer program is executed when loaded by the processor and implements the following steps: obtaining historical scheduling data; the historical scheduling data includes historical upstream water levels, historical downstream water levels and historical water diversion flows; making predictions based on the historical scheduling data to obtain predicted downstream water levels; and taking the difference between the current upstream water level and the predicted downstream water level as the upstream and downstream water level difference.

[0175] The specific implementation of the above operations can be found in the previous embodiments, which will not be described in detail here.

[0176] The computer-readable storage medium may include: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0177] Since the computer program stored in the computer-readable storage medium can execute any one of the hydropower station emergency dispatch methods provided in the embodiments of the present application, the beneficial effects that can be achieved by any one of the hydropower station emergency dispatch methods provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0178] According to one aspect of the present application, a computer program product or a computer program is also provided, the computer program product or the computer program includes a computer instruction, and the computer instruction is stored in a computer-readable storage medium. The processor of the computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the method provided in various optional implementations in the above embodiments.

[0179] In the above-mentioned hydropower station emergency dispatching device, computer-readable storage medium, computer equipment, and computer program product embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the above-described hydropower station emergency dispatching device, computer-readable storage medium, computer program product, computer equipment, and the specific working process and beneficial effects thereof can be referred to the description of the hydropower station emergency dispatching method in the above embodiment, and will not be described in detail here.

[0180] The above is a detailed introduction to a hydropower station emergency dispatch method, device, computer equipment, computer-readable storage medium and computer program product provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A hydropower station emergency dispatching method, characterized in that: The method comprises: When at least one unit of a hydropower station is shut down, determine the normal units; Obtaining an upstream and downstream water level difference; the upstream and downstream water level difference is obtained based on a current upstream water level and a current downstream water level of the hydropower station; If the upstream and downstream water level difference meets the preset range condition, the normal unit is dispatched to flow; If the upstream and downstream water level difference does not meet the preset range conditions, the normal unit is dispatched to jointly flow through the water diversion gate.

2. The method according to claim 1, characterized in that If the upstream and downstream water level difference does not meet the preset range condition, dispatching the normal unit to jointly flow with the water diversion gate includes: Get the current water diversion flow; If the upstream and downstream water level difference is greater than a first threshold, the unit output is determined based on the current water diversion flow rate, and based on the unit output, normal units and / or diversion gates are dispatched to pass the flow; If the upstream and downstream water level difference is less than the second threshold, determine the maximum allowable flow rate of each normal unit, and determine the maximum allowable total flow rate of each unit; Based on the maximum allowable total flow rate, normal units and / or water diversion gates are dispatched to pass the flow.

3. The method according to claim 2, characterized in that The dispatching of normal units and / or diversion gate flow based on the unit output includes: If the output of the unit is less than or equal to the maximum output, all normal units are dispatched to overcurrent; If the unit output is greater than the maximum output, the flow rate of each unit is determined according to the maximum output, and the flow rate of each unit is dispatched according to the flow rate of each unit; wherein the sum of the flow rates of each unit is the total flow rate; The diversion gate flow is determined according to the total flow through the machine, and the diversion gate flow is scheduled according to the diversion gate flow.

4. The method according to claim 2, characterized in that: The method of dispatching normal units and / or diversion gates to flow based on the maximum allowable total flow rate includes: If the maximum allowable total flow rate is greater than the current water diversion flow rate, all normal units are dispatched to pass the flow; If the maximum allowable total flow rate is less than or equal to the current water diversion flow rate, dispatching the flow of each normal unit according to the maximum allowable total flow rate; The diversion gate flow is determined according to the maximum allowable total flow through the machine, and the diversion gate flow is scheduled according to the diversion gate flow.

5. The method according to claim 3 or 4, characterized in that: The method of scheduling the flow of the water diversion gate according to the flow of the water diversion gate comprises: Determine the maintenance status of the diversion gate; When the water diversion gate is not in a maintenance state, obtaining a first current opening of each gate hole of the water diversion gate and obtaining a first adjustment amount; A first target opening is determined based on the first current opening and the first adjustment amount, and the aperture gates are simultaneously adjusted to the first target opening.

6. The method according to claim 5, characterized in that The method further comprises: When at least one gate of the water diversion gate is under maintenance, obtaining the second current opening of the remaining gates and obtaining the second adjustment amount; A second target opening is determined based on the second current opening and the second adjustment amount, and the remaining gates are simultaneously adjusted to the second target opening.

7. The method according to claim 1, characterized in that The obtaining of the upstream and downstream water level difference comprises: Acquiring historical dispatching data; the historical dispatching data includes historical upstream water level, historical downstream water level and historical water diversion flow; Perform prediction based on the historical dispatching data to obtain a predicted downstream water level; The difference between the current upstream water level and the predicted downstream water level is taken as the upstream and downstream water level difference.

8. A hydropower station emergency dispatching device, characterized in that: The device comprises: A determination module, used to determine a normal unit when at least one unit in the hydropower station is shut down; An acquisition module, used for acquiring an upstream and downstream water level difference; the upstream and downstream water level difference is obtained based on a current upstream water level and a current downstream water level of the hydropower station; A scheduling module, used for scheduling the normal unit to flow if the upstream and downstream water level difference meets the preset range condition; The scheduling module is also used to schedule the normal unit to jointly flow with the water diversion gate if the upstream and downstream water level difference does not meet the preset range conditions.

9. A computer device, characterized in that: It comprises a processor and a memory, wherein the memory stores a plurality of instructions; the processor loads instructions from the memory to execute the steps of the hydropower station emergency dispatching method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to execute the steps of the hydropower station emergency dispatching method according to any one of claims 1 to 7.

Images