A method and device for creating and optimizing a multi-dam model for a pumped storage power station

Abstract

The present application relates to the technical field of pumped-storage power station engineering, and in particular to a method and device for optimizing the creation of a multi-dam model for a pumped-storage power station. When carrying out a vertical anti-seepage reservoir plan, it is only necessary to select the dam plane layout axis and specify the basic shape of the dam body, and automatically complete the creation of the dam model in the terrain depression, thereby solving the problems of large manual workload, low modeling efficiency, and inability to obtain engineering characteristic parameters during modeling in the traditional method when arranging the plan. The dam top elevation that meets the reservoir capacity requirement is locked through the reservoir capacity difference. A single calculation not only completes the creation of the dam model, but also can synchronously calculate the reservoir capacity curve enclosed by multiple dams, the main characteristic water level reservoir capacity, the panel area, the toe board line length, the stone slope protection area and other main engineering characteristic indicators. The method is suitable for combination with an artificial intelligence algorithm, and automatically finds the optimal solution through a program by changing the axis control point, the dam body parameters, etc., combined with an optimization or optimization algorithm.

Description

Technical Field

[0001] The present application relates to the technical field of pumped-storage power station engineering, and in particular to a method and device for creating and optimizing a multi-dam model of a pumped-storage power station. Background Art

[0002] Pumped-storage power station projects have seen great development in recent years, posing challenges to efficiency, quality and digital applications. Traditional productivity and production relations are difficult to adapt to the current situation. The working principle of a pumped-storage power station is to use electricity during low-load periods to pump water to the upper reservoir, and then release water to the lower reservoir for power generation during peak load periods. When the geological conditions of the upper reservoir are relatively good, the upper reservoir of a pumped-storage power station is often designed with a multi-dam solution, i.e., vertical anti-seepage.

[0003] At present, for the design of multi-dam schemes, whether it is traditional 2D CAD design or BIM design, the work of dam filling, slope excavation, engineering quantity calculation, etc. is separated, which leads to problems such as low efficiency and long operation time in scheme design. At the same time, due to the problems of many variable parameters, many comparable schemes, large trial calculation workload, short design cycle and difficulty in finding the best solution in the pumped storage design scheme, a new design method is urgently needed to realize the rapid adjustment and layout of multi-dam schemes, automatic calculation of engineering quantities, shorten the operation time, and greatly improve production efficiency and scheme quality. Summary of the invention

[0004] The main purpose of the present application is to provide a method and device for optimizing the creation of a multi-dam model for a pumped-storage power station. When a vertical anti-seepage reservoir scheme is being implemented or multiple dams are required to enclose a reservoir, it is only necessary to select the dam plane layout axis and specify the basic shape of the dam body to automatically complete the creation of the dam model in the terrain depression, thereby solving the problems of large manual workload, low modeling efficiency, and inability to obtain engineering characteristic parameters simultaneously with modeling in the traditional method when arranging the scheme.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] According to a first aspect of the present invention, the present invention claims a method for optimizing the creation of a multi-dam model for a pumped storage power station, comprising:

[0007] Step 1, collecting terrain contour lines or DEM data of the target area, and using Civil 3D surface components to establish a triangulated surface of the original terrain of the target area based on the terrain contour lines or DEM data;

[0008] Step 2, obtaining the topographical, geological and social environmental factors of the target area, and determining the dam axis and the body characteristic parameters of the main and auxiliary dams of the multi-dam scheme according to the topographical, geological and social environmental factors, wherein the body characteristic parameters at least include the dam crest width, dam crest elevation, normal water level elevation, upstream side slope ratio of the dam, and downstream side slope ratio of the dam;

[0009] Step 3, establishing a main dam surface model along the axis of the dam according to the main dam parameters and repeating this process for multiple times to obtain an auxiliary dam surface model established along the entire dam axis according to the auxiliary dam body parameters;

[0010] Step 4, calculating and obtaining the intersection line between the main dam surface model and the terrain surface and the main dam shape control line, and repeatedly calculating and obtaining the intersection line between the auxiliary dam surface model and the terrain surface and the auxiliary dam shape control line;

[0011] Step 5, using the terrain surface as the reference surface, the main dam surface model and the auxiliary dam surface model as the comparison surface, establishing a volume surface, and respectively obtaining the elevation or axis position of each dam;

[0012] Step 6, pasting the main dam surface model, the auxiliary dam surface model and the ground surface to obtain a terrain surface model after dam construction, taking the dam axis as the control line and the normal water level elevation as the controlled water level elevation, to establish a multi-dam reservoir water surface model;

[0013] Step 7, calculating the reservoir capacity value: using the terrain surface model after dam construction as the reference surface, using the water surface of the reservoir as the comparison surface, establishing a volume surface, and calculating the reservoir capacity value corresponding to the current dam top elevation;

[0014] Step 8, calculate and obtain the dam crest elevation that meets the reservoir capacity requirements, and use the final determined dam crest elevation and the corresponding main dam surface model, auxiliary dam surface model and dam shape control line analysis to obtain the reservoir capacity curve, main characteristic water level storage capacity, panel area, toe board line length, and stone slope protection area engineering characteristic indicators.

[0015] Furthermore, the step 3 further includes:

[0016] The dam axis is offset upstream by 1 / 2 of the dam crest width to obtain an upstream dam crest control line, the elevation of which is the dam crest elevation;

[0017] The dam axis is shifted downstream by 1 / 2 of the dam crest width to obtain a downstream dam crest control line, the elevation of which is the dam crest elevation;

[0018] Use the upstream dam top control line to offset the upstream dam bottom shape control line according to the upstream side slope ratio parameter of the dam, attach the elevation value, and ensure that the offset control line is lower than the lowest elevation of the model range;

[0019] Use the downstream dam crest control line to offset the upstream dam bottom shape control line according to the downstream slope ratio parameter of the dam, attach the elevation value, and ensure that the offset control line is lower than the lowest elevation of the model range;

[0020] The dam shape control line is used to complete the establishment of a triangulated surface model of the dam that intersects the entire terrain.

[0021] Furthermore, the step 4 further includes:

[0022] The main dam volume surface is established with the terrain surface as the basic surface and the dam surface as the reference surface;

[0023] Finding a contour line with an elevation of 0 in the volume surface, and extracting the contour line as an intersection line between the main dam surface and the terrain surface;

[0024] Extracting the intersection line, taking the intersection line as the outer boundary of the main dam surface, clipping the main dam surface, and obtaining a main dam surface model;

[0025] The intersection line is used as the outer boundary to clip the main dam shape control line to obtain the main dam shape control line within the main dam model range.

[0026] Furthermore, the step 7 further includes:

[0027] If the storage capacity is greater than the target storage capacity, raise the dam axis elevation and re-execute steps 1 to 6 to obtain the new storage capacity;

[0028] If the storage capacity is less than the target storage capacity, lower the elevation of the dam axis and re-execute steps 1 to 6 to obtain a new storage capacity;

[0029] Repeat the steps of obtaining a new storage capacity until the difference between the obtained storage capacity and the target storage capacity meets the requirements. The dam crest elevation at this time is the dam crest elevation that meets the storage capacity requirements.

[0030] Furthermore, the step 5 further includes:

[0031] Determine the power load information corresponding to the real-time energy storage power station demand of the main dam surface;

[0032] Determine the first main dam determination result of the pumped-storage power station according to the storage capacity jointly enclosed by the main dam curved surface and the auxiliary dam curved surface and the target energy storage power station reserves required by the real-time energy storage power station demand;

[0033] When the power load information is the peak power load and the first main dam determines that the actual energy storage power station reserves are less than the target energy storage power station reserves, the auxiliary dam surface is controlled to adjust the axis or increase the dam height, and the adjusted axis or dam height is deployed to the main dam surface.

[0034] Further, after deploying the adjusted axis or dam height to the main dam curved surface, the method further comprises:

[0035] Determine whether the power load information has changed;

[0036] In the case where the power load information has not changed from peak power load to valley power load, a second main dam determination result of the pumped storage power station is determined according to the storage capacity jointly enclosed by the main dam curved surface and the auxiliary dam curved surface and the target energy storage power station reserves required by the real-time energy storage power station demand;

[0037] According to the determination result of the second main dam, the elevation or axis position of the main dam curved surface and the auxiliary dam curved surface are readjusted.

[0038] Furthermore, the readjustment of the elevation or axis position of the main dam curved surface and the auxiliary dam curved surface according to the determination result of the second main dam includes:

[0039] When the second main dam determines that the actual energy storage power station reserves are less than the target energy storage power station reserves, suspending the optimization of the auxiliary dam curved surface; or

[0040] When the second main dam determines that the actual energy storage power station reserves are not less than the target energy storage power station reserves, the elevation or axis position deployed to the main dam curved surface and the auxiliary dam curved surface is kept unchanged.

[0041] Further, the pausing optimization of the auxiliary dam curved surface comprises:

[0042] If the second main dam determination result includes that the actual energy storage power station reserve regarding water storage is less than the target energy storage power station reserve, storing the load of the auxiliary dam curved surface into a backup energy storage power station;

[0043] The method further comprises:

[0044] When the power load information changes from peak power load to valley power load, the auxiliary dam curved surface in the no-load state continues to be optimized according to the intermediate state data stored in the backup energy storage power station.

[0045] Further, after determining whether the power load information has changed, the method further includes:

[0046] When the power load information changes from a peak power load to a valley power load, determining whether there is an auxiliary dam surface in an unloaded state, and / or determining whether there is an auxiliary dam surface in a loaded state;

[0047] In the case where there is an auxiliary dam surface in an unloaded state and / or an auxiliary dam surface in a loaded state, according to the actual energy storage power station reserves deployed to the auxiliary dam surface and the target energy storage power station reserves required in real time to optimize the auxiliary dam surface, the auxiliary dam evaluation result on the energy storage power station reserves of the auxiliary dam surface is determined;

[0048] According to the evaluation results of the auxiliary dam, the elevation or axis position of the main dam surface and the auxiliary dam surface is adjusted.

[0049] According to a second aspect of the present invention, the present invention claims protection for a device for creating and optimizing a multi-dam model of a pumped storage power station, characterized in that it comprises:

[0050] A processor, and a memory coupled to the processor, wherein the memory stores program instructions that can be executed by the processor; when the processor executes the program instructions stored in the memory, the method for creating and optimizing a multi-dam model for a pumped-storage power station is implemented.

[0051] The present application relates to the technical field of pumped-storage power station engineering, and in particular to a method and device for optimizing the creation of a multi-dam model for a pumped-storage power station. When carrying out a vertical anti-seepage reservoir plan, it is only necessary to select the dam plane layout axis and specify the basic shape of the dam body, and automatically complete the creation of the dam model in the terrain depression, thereby solving the problems of large manual workload, low modeling efficiency, and inability to obtain engineering characteristic parameters during modeling in the traditional method when arranging the plan. The dam top elevation that meets the reservoir capacity requirement is locked through the reservoir capacity difference. A single calculation not only completes the creation of the dam model, but also can synchronously calculate the reservoir capacity curve enclosed by multiple dams, the main characteristic water level reservoir capacity, the panel area, the toe board line length, the stone slope protection area and other main engineering characteristic indicators. The method is suitable for combination with an artificial intelligence algorithm, and automatically finds the optimal solution through a program by changing the axis control point, the dam body parameters, etc., combined with an optimization or optimization algorithm. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A workflow diagram of a method for creating an optimization method for a multi-dam model of a pumped storage power station as claimed in an embodiment of the present application;

[0053] Figure 2 A second workflow diagram of a method for creating and optimizing a multi-dam model for a pumped-storage power station as claimed in an embodiment of the present application;

[0054] Figure 3 A schematic diagram of a control line of a secondary dam shape for a method for creating and optimizing a multi-dam model of a pumped-storage power station as claimed in an embodiment of the present application;

[0055] Figure 4A schematic diagram of a reservoir water surface model for a method for creating and optimizing a multi-dam model of a pumped-storage power station as claimed in an embodiment of the present application;

[0056] Figure 5 A third workflow diagram of a method for creating and optimizing a multi-dam model for a pumped storage power station claimed in an embodiment of the present application;

[0057] Figure 6 A fourth workflow diagram of a method for creating and optimizing a multi-dam model for a pumped storage power station claimed in an embodiment of the present application;

[0058] Figure 7 A structural diagram of a device for creating and optimizing a multi-dam model for a pumped-storage power station is claimed in an embodiment of the present application. DETAILED DESCRIPTION

[0059] 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 ordinary technicians in this field without creative work are within the scope of protection of this application.

[0060] The terms "first", "second" and "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications in the embodiments of the present application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0061] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0062] According to a first embodiment of the present invention, the present invention claims a method for creating an optimization model for a multi-dam pumped storage power station, referring to Figure 1 ,include:

[0063] Step 1, collecting terrain contour lines or DEM data of the target area, and using Civil 3D surface components to establish a triangulated surface of the original terrain of the target area based on the terrain contour lines or DEM data;

[0064] Step 2, obtaining the topographical, geological and social environmental factors of the target area, and determining the dam axis and the body characteristic parameters of the main and auxiliary dams of the multi-dam scheme according to the topographical, geological and social environmental factors, wherein the body characteristic parameters at least include the dam crest width, dam crest elevation, normal water level elevation, upstream side slope ratio of the dam, and downstream side slope ratio of the dam;

[0065] Step 3, establishing a main dam surface model along the axis of the dam according to the main dam parameters and repeating this process for multiple times to obtain an auxiliary dam surface model established along the entire dam axis according to the auxiliary dam body parameters;

[0066] Step 4, calculating and obtaining the intersection line between the main dam surface model and the terrain surface and the main dam shape control line, and repeatedly calculating and obtaining the intersection line between the auxiliary dam surface model and the terrain surface and the auxiliary dam shape control line;

[0067] Step 5, using the terrain surface as the reference surface, the main dam surface model and the auxiliary dam surface model as the comparison surface, establishing a volume surface, and respectively obtaining the elevation or axis position of each dam;

[0068] Step 6, pasting the main dam surface model, the auxiliary dam surface model and the ground surface to obtain a terrain surface model after dam construction, taking the dam axis as the control line and the normal water level elevation as the controlled water level elevation, to establish a multi-dam reservoir water surface model;

[0069] Step 7, calculating the reservoir capacity value: using the terrain surface model after dam construction as the reference surface, using the water surface of the reservoir as the comparison surface, establishing a volume surface, and calculating the reservoir capacity value corresponding to the current dam top elevation;

[0070] Step 8, calculate and obtain the dam crest elevation that meets the reservoir capacity requirements, and use the final determined dam crest elevation and the corresponding main dam surface model, auxiliary dam surface model and dam shape control line analysis to obtain the reservoir capacity curve, main characteristic water level storage capacity, panel area, toe board line length, and stone slope protection area engineering characteristic indicators.

[0071] Furthermore, the step 3 further includes:

[0072] The dam axis is offset upstream by 1 / 2 of the dam crest width to obtain an upstream dam crest control line, the elevation of which is the dam crest elevation;

[0073] The dam axis is shifted downstream by 1 / 2 of the dam crest width to obtain a downstream dam crest control line, the elevation of which is the dam crest elevation;

[0074] Use the upstream dam top control line to offset the upstream dam bottom shape control line according to the upstream side slope ratio parameter of the dam, attach the elevation value, and ensure that the offset control line is lower than the lowest elevation of the model range;

[0075] Use the downstream dam crest control line to offset the upstream dam bottom shape control line according to the downstream slope ratio parameter of the dam, attach the elevation value, and ensure that the offset control line is lower than the lowest elevation of the model range;

[0076] The dam shape control line is used to complete the establishment of a triangulated surface model of the dam that intersects the entire terrain.

[0077] Further, refer to Figure 2 , the step 4 further comprises:

[0078] The main dam volume surface is established with the terrain surface as the basic surface and the dam surface as the reference surface;

[0079] Finding a contour line with an elevation of 0 in the volume surface, and extracting the contour line as an intersection line between the main dam surface and the terrain surface;

[0080] Extracting the intersection line, taking the intersection line as the outer boundary of the main dam surface, clipping the main dam surface, and obtaining a main dam surface model;

[0081] The intersection line is used as the outer boundary to clip the main dam shape control line to obtain the main dam shape control line within the main dam model range.

[0082] Reference Figure 3 , we can get the intersection line between the auxiliary dam surface model and the terrain surface and the auxiliary dam shape control line. Figure 4 , establish a water surface model of the reservoir with multiple dam schemes.

[0083] Furthermore, the step 7 further includes:

[0084] If the storage capacity is greater than the target storage capacity, raise the dam axis elevation and re-execute steps 1 to 6 to obtain the new storage capacity;

[0085] If the storage capacity is less than the target storage capacity, lower the elevation of the dam axis and re-execute steps 1 to 6 to obtain a new storage capacity;

[0086] Repeat the steps of obtaining a new storage capacity until the difference between the obtained storage capacity and the target storage capacity meets the requirements. The dam crest elevation at this time is the dam crest elevation that meets the storage capacity requirements.

[0087] Further, refer to Figure 5 , the step 5 further comprises:

[0088] Determine the power load information corresponding to the real-time energy storage power station demand of the main dam surface;

[0089] Determine the first main dam determination result of the pumped-storage power station according to the storage capacity jointly enclosed by the main dam curved surface and the auxiliary dam curved surface and the target energy storage power station reserves required by the real-time energy storage power station demand;

[0090] When the power load information is the peak power load and the first main dam determines that the actual energy storage power station reserves are less than the target energy storage power station reserves, the auxiliary dam surface is controlled to adjust the axis or increase the dam height, and the adjusted axis or dam height is deployed to the main dam surface.

[0091] Further, after deploying the adjusted axis or dam height to the main dam curved surface, the method further comprises:

[0092] Determine whether the power load information has changed;

[0093] In the case where the power load information has not changed from peak power load to valley power load, a second main dam determination result of the pumped storage power station is determined according to the storage capacity jointly enclosed by the main dam curved surface and the auxiliary dam curved surface and the target energy storage power station reserves required by the real-time energy storage power station demand;

[0094] According to the determination result of the second main dam, the elevation or axis position of the main dam curved surface and the auxiliary dam curved surface are readjusted.

[0095] Furthermore, the readjustment of the elevation or axis position of the main dam curved surface and the auxiliary dam curved surface according to the determination result of the second main dam includes:

[0096] When the second main dam determines that the actual energy storage power station reserves are less than the target energy storage power station reserves, suspending the optimization of the auxiliary dam curved surface; or

[0097] When the second main dam determines that the actual energy storage power station reserves are not less than the target energy storage power station reserves, the elevation or axis position deployed to the main dam curved surface and the auxiliary dam curved surface is kept unchanged.

[0098] Further, the pausing optimization of the auxiliary dam curved surface comprises:

[0099] If the second main dam determination result includes that the actual energy storage power station reserve regarding water storage is less than the target energy storage power station reserve, storing the load of the auxiliary dam curved surface into a backup energy storage power station;

[0100] The method further comprises:

[0101] When the power load information changes from peak power load to valley power load, the auxiliary dam curved surface in the no-load state continues to be optimized according to the intermediate state data stored in the backup energy storage power station.

[0102] Further, after determining whether the power load information has changed, the method further includes:

[0103] When the power load information changes from a peak power load to a valley power load, determining whether there is an auxiliary dam surface in an unloaded state, and / or determining whether there is an auxiliary dam surface in a loaded state;

[0104] In the case where there is an auxiliary dam surface in an unloaded state and / or an auxiliary dam surface in a loaded state, according to the actual energy storage power station reserves deployed to the auxiliary dam surface and the target energy storage power station reserves required in real time to optimize the auxiliary dam surface, the auxiliary dam evaluation result on the energy storage power station reserves of the auxiliary dam surface is determined;

[0105] According to the evaluation results of the auxiliary dam, the elevation or axis position of the main dam surface and the auxiliary dam surface is adjusted.

[0106] Among them, in this embodiment, adjusting the elevation or axis position of the main dam curved surface and the auxiliary dam curved surface according to the auxiliary dam evaluation result includes:

[0107] When the evaluation result of the auxiliary dam shows that the actual energy storage power station reserves are less than the target energy storage power station reserves, controlling the main dam curved surface to adjust the axis or increase the dam height;

[0108] The adjusted axis or dam height is deployed to the auxiliary dam curved surface.

[0109] After deploying the adjusted axis or dam height to the auxiliary dam curved surface, the method further includes:

[0110] Determine whether the power load information has changed;

[0111] When the power load information does not change from a low-peak power load to a high-peak power load, maintaining the elevation or axis position deployed to the main dam curved surface and the auxiliary dam curved surface;

[0112] When the power load information changes from a valley power load to a peak power load, a first main dam determination result of the pumped storage power station is determined according to the storage capacity jointly enclosed by the main dam curved surface and the auxiliary dam curved surface and the target energy storage power station reserves required by the real-time energy storage power station demand;

[0113] According to the determination result of the first main dam, the elevation or axis position of the main dam curved surface and the auxiliary dam curved surface are adjusted.

[0114] After the decision is made regarding the first main dam determination result of the pumped-storage power station, the method further comprises:

[0115] When the power load information is the peak power load and the first main dam determines that the actual energy storage power station reserves are not less than the target energy storage power station reserves, the elevation or axis position deployed to the main dam surface and the auxiliary dam surface is maintained.

[0116] After the decision is made regarding the first main dam determination result of the pumped-storage power station, the method further comprises:

[0117] In the case where the power load information is a valley power load, according to the actual energy storage power station reserves deployed to the auxiliary dam curved surface and the target energy storage power station reserves required in real time to optimize the auxiliary dam curved surface, the auxiliary dam evaluation result on the energy storage power station reserves of the auxiliary dam curved surface is determined;

[0118] According to the evaluation results of the auxiliary dam, the elevation or axis position of the main dam surface and the auxiliary dam surface is adjusted.

[0119] The adjusting the elevation or axis position of the main dam curved surface and the auxiliary dam curved surface according to the auxiliary dam evaluation result includes:

[0120] When the evaluation result of the auxiliary dam shows that the actual energy storage power station reserves are less than the target energy storage power station reserves, controlling the main dam curved surface to adjust the axis or increase the dam height;

[0121] The adjusted axis or dam height is deployed to the auxiliary dam curved surface.

[0122] After deploying the adjusted axis or dam height to the auxiliary dam curved surface, the method further includes:

[0123] Determine whether the power load information has changed;

[0124] When the power load information does not change from the low-peak power load to the high-peak power load, the elevation or axis position deployed to the main dam curved surface and the auxiliary dam curved surface is kept unchanged; or,

[0125] When the power load information changes from valley power load to peak power load, a first main dam determination result of the pumped-storage power station is determined based on the storage capacity jointly enclosed by the main dam surface and the auxiliary dam surface and the target energy storage power station reserves required by the real-time energy storage power station demand; and, based on the first main dam determination result, the elevation or axis position of the main dam surface and the auxiliary dam surface is adjusted.

[0126] The determining whether the power load information has changed includes:

[0127] Determine whether the attribute of the main dam surface is switched;

[0128] In the case of attribute switching, whether the power load information corresponding to the attribute after the switch is consistent with the power load information of the attribute before the switch;

[0129] Among them, if the power load information corresponding to the attribute after switching is consistent with the power load information of the attribute before switching, the power load information has not changed; if the power load information corresponding to the attribute after switching is inconsistent with the power load information of the attribute before switching, the power load information has changed; when the attribute has not been switched, the power load information has not changed.

[0130] The main dam surface includes a plurality of attributes; before determining the power load information corresponding to the real-time energy storage power station demand of the main dam surface, the method further includes:

[0131] According to the requirements of the plurality of attributes for the filling volume, respectively, determining the power load information corresponding to the plurality of attributes;

[0132] The power load information of the multiple attributes are respectively associated with the identity identifiers of the corresponding attributes to obtain a power load information table corresponding to the main dam curved surface.

[0133] The power load information corresponding to the real-time energy storage power station demand of the main dam surface is determined, including:

[0134] Obtaining a target identity of a real-time energy storage power station requirement of the main dam surface;

[0135] According to the power load information table of the target identity, determine the associated information with the target identity to obtain the power load information corresponding to the real-time energy storage power station demand;

[0136] The power load information includes peak power load or valley power load.

[0137] Further, refer to Figure 6 , calculate and obtain the dam crest elevation that meets the reservoir capacity requirements, and use the final determined dam crest elevation and the corresponding main dam surface model, auxiliary dam surface model and dam shape control line analysis to obtain the reservoir capacity curve, main characteristic water level storage capacity, panel area, toe line length, and stone slope protection area engineering characteristic indicators.

[0138] According to a second embodiment of the present invention, the present invention claims a device for creating and optimizing a multi-dam model for a pumped storage power station, referring to Figure 7 ,include:

[0139] A processor, and a memory coupled to the processor, wherein the memory stores program instructions that can be executed by the processor; when the processor executes the program instructions stored in the memory, the method for creating and optimizing a multi-dam model for a pumped-storage power station is implemented.

[0140] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0141] In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. The above is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of this application, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present application.

[0142] The specific implementation methods of the invention are described in detail above, but they are only examples, and the present application is not limited to the specific implementation methods described above. For those skilled in the art, any equivalent modification or substitution of the invention is also within the scope of the present application, and therefore, the equalization, modification, and improvement made without departing from the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A method for creating and optimizing a multi-dam model for a pumped storage power station, characterized in that: include: Step 1, collecting terrain contour lines or DEM data of the target area, and using the surface component of Civil 3D to establish a triangulated surface of the original terrain of the target area according to the terrain contour lines or DEM data; Step 2, obtaining the topographical, geological and social environmental factors of the target area, and determining the dam axis and the body characteristic parameters of the main and auxiliary dams of the multi-dam scheme according to the topographical, geological and social environmental factors, wherein the body characteristic parameters at least include the dam crest width, dam crest elevation, normal water level elevation, upstream side slope ratio of the dam, and downstream side slope ratio of the dam; Step 3, establishing a main dam surface model along the axis of the dam according to the main dam parameters and repeating this process for multiple times to obtain an auxiliary dam surface model established along the entire dam axis according to the auxiliary dam body parameters; Step 4, calculating and obtaining the intersection line between the main dam surface model and the terrain surface and the main dam shape control line, and repeatedly calculating and obtaining the intersection line between the auxiliary dam surface model and the terrain surface and the auxiliary dam shape control line; Step 5, using the terrain surface as the reference surface, the main dam surface model and the auxiliary dam surface model as the comparison surface, establishing a volume surface, and respectively obtaining the elevation or axis position of each dam; Step 6, pasting the main dam surface model, the auxiliary dam surface model and the ground surface to obtain a terrain surface model after dam construction, taking the dam axis as the control line and the normal water level elevation as the controlled water level elevation, to establish a multi-dam reservoir water surface model; Step 7, calculating the reservoir capacity value: using the terrain surface model after dam construction as the reference surface, using the water surface of the reservoir as the comparison surface, establishing a volume surface, and calculating the reservoir capacity value corresponding to the current dam top elevation; Step 8: Calculate and obtain the dam crest elevation that meets the reservoir capacity requirements, and use the final dam crest elevation and the corresponding main dam surface model, auxiliary dam surface model, and dam shape control line to analyze and obtain the reservoir capacity curve, main water level characteristics, panel area, toe board line length, and stone slope protection area engineering characteristic indicators; The step 3 further includes: The dam axis is offset upstream by 1 / 2 of the dam crest width to obtain an upstream dam crest control line, the elevation of which is the dam crest elevation; The dam axis is shifted downstream by 1 / 2 of the dam crest width to obtain a downstream dam crest control line, the elevation of which is the dam crest elevation; Use the upstream dam top control line to offset the upstream dam bottom shape control line according to the upstream side slope ratio parameter of the dam, attach the elevation value, and ensure that the offset control line is lower than the lowest elevation of the model range; Use the downstream dam crest control line to offset the upstream dam bottom shape control line according to the downstream slope ratio parameter of the dam, attach the elevation value, and ensure that the offset control line is lower than the lowest elevation of the model range; The dam shape control line is used to complete the establishment of a dam triangulated surface model that intersects the entire terrain; The step 4 further includes: The main dam volume surface is established with the terrain surface as the basic surface and the dam surface as the reference surface; Finding a contour line with an elevation of 0 in the volume surface, and extracting the contour line as an intersection line between the main dam surface and the terrain surface; Extracting the intersection line, taking the intersection line as the outer boundary of the main dam surface, clipping the main dam surface, and obtaining a main dam surface model; Using the intersection line as the outer boundary to clip the main dam shape control line, to obtain the main dam shape control line within the main dam model range; The step 5 further includes: Determine the power load information corresponding to the real-time energy storage power station demand of the main dam surface; Determine the first main dam determination result of the pumped-storage power station according to the storage capacity jointly enclosed by the main dam curved surface and the auxiliary dam curved surface and the target energy storage power station reserves required by the real-time energy storage power station demand; When the power load information is the peak power load and the first main dam determines that the actual energy storage power station reserves are less than the target energy storage power station reserves, the auxiliary dam surface is controlled to adjust the axis or increase the dam height, and the adjusted axis or dam height is deployed to the main dam surface.

2. A method for creating and optimizing a multi-dam model for a pumped storage power station according to claim 1, characterized in that: The step 7 further includes: If the storage capacity is greater than the target storage capacity, raise the dam axis elevation and re-execute steps 1 to 6 to obtain the new storage capacity; If the storage capacity is less than the target storage capacity, lower the elevation of the dam axis and re-execute steps 1 to 6 to obtain a new storage capacity; Repeat the steps of obtaining a new storage capacity until the difference between the obtained storage capacity and the target storage capacity meets the requirements. The dam crest elevation at this time is the dam crest elevation that meets the storage capacity requirements.

3. A method for creating and optimizing a multi-dam model for a pumped storage power station as claimed in claim 2, characterized in that: After deploying the adjusted axis or dam height to the main dam curved surface, the method further includes: Determine whether the power load information has changed; In the case where the power load information has not changed from peak power load to valley power load, a second main dam determination result of the pumped storage power station is determined according to the storage capacity jointly enclosed by the main dam curved surface and the auxiliary dam curved surface and the target energy storage power station reserves required by the real-time energy storage power station demand; According to the determination result of the second main dam, the elevation or axis position of the main dam curved surface and the auxiliary dam curved surface are readjusted.

4. A method for creating and optimizing a multi-dam model for a pumped storage power station as claimed in claim 3, characterized in that: The step of re-adjusting the elevation or axis position of the main dam curved surface and the auxiliary dam curved surface according to the determination result of the second main dam includes: When the second main dam determines that the actual energy storage power station reserves are less than the target energy storage power station reserves, suspending the optimization of the auxiliary dam curved surface; or When the second main dam determines that the actual energy storage power station reserves are not less than the target energy storage power station reserves, the elevation or axis position deployed to the main dam curved surface and the auxiliary dam curved surface is kept unchanged.

5. A method for creating and optimizing a multi-dam model for a pumped storage power station as claimed in claim 4, characterized in that: The pausing optimization of the auxiliary dam curved surface comprises: If the second main dam determination result includes that the actual energy storage power station reserve regarding water storage is less than the target energy storage power station reserve, storing the load of the auxiliary dam curved surface into a backup energy storage power station; The method further comprises: When the power load information changes from peak power load to valley power load, the auxiliary dam curved surface in the no-load state continues to be optimized according to the intermediate state data stored in the backup energy storage power station.

6. A method for creating and optimizing a multi-dam model for a pumped storage power station as claimed in claim 5, characterized in that: After determining whether the power load information has changed, the method further includes: When the power load information changes from a peak power load to a valley power load, determining whether there is an auxiliary dam surface in an unloaded state, and / or determining whether there is an auxiliary dam surface in a loaded state; In the case where there is an auxiliary dam surface in an unloaded state and / or an auxiliary dam surface in a loaded state, according to the actual energy storage power station reserves deployed to the auxiliary dam surface and the target energy storage power station reserves required in real time to optimize the auxiliary dam surface, the auxiliary dam evaluation result on the energy storage power station reserves of the auxiliary dam surface is determined; According to the evaluation results of the auxiliary dam, the elevation or axis position of the main dam surface and the auxiliary dam surface is adjusted.

7. A device for creating and optimizing a multi-dam model for a pumped storage power station, characterized in that: include: A processor, and a memory coupled to the processor, the memory storing program instructions executable by the processor; When the processor executes the program instructions stored in the memory, the processor implements a method for optimizing the creation of a multi-dam model for a pumped-storage power station according to any one of claims 1 to 6.

Images