Substation flood risk assessment method and device, storage medium and electronic equipment

Abstract

The application discloses a power substation flood risk assessment method and device, a storage medium and an electronic device. The method comprises the following steps: acquiring position information of a power substation and river distribution information of the power substation, and determining source information of the power substation based on the position information and the river distribution information; acquiring scene information of the power substation and a power supply service object type of the power substation, and analyzing the source information based on the position information and the river distribution information to obtain an analysis result and a flood level of the power substation, wherein the flood level is used to represent the possibility of the power substation being flooded; in response to the analysis result being that the power substation is flooded, the flood risk of the power substation is assessed based on the scene information, the power supply service object type and the flood level to obtain a risk level of the power substation, wherein the risk level is used to represent the loss degree of the power substation being flooded. The application solves the technical problem that the flood risk of the power substation cannot be reasonably assessed.

Description

Technical Field

[0001] This invention relates to the field of risk assessment technology for substations, and more specifically, to a method, apparatus, storage medium, and electronic equipment for assessing flood risks in substations. Background Technology

[0002] In recent years, with climate change and rapid socio-economic development, torrential rains and floods have occurred frequently, often causing substations (rooms) to be flooded and resulting in power outages. Because the flood risk faced by substations (rooms) changes rapidly, and staff lack experience in preventing flooding at substations, technical problems arise that prevent the reasonable assessment of flood risks at substations.

[0003] There is currently no effective solution to the aforementioned technical problem of being unable to reasonably assess the flood risk of substations. Summary of the Invention

[0004] This invention provides a method, apparatus, storage medium, and electronic device for assessing flood risk in substations, thereby at least solving the technical problem of the inability to reasonably assess the flood risk of substations.

[0005] According to one aspect of the invention, a method for assessing the flood risk of a substation is provided. The method may include: acquiring the location information of the substation and the river distribution information of the substation, and determining the source information of the substation based on the location information and the river distribution information, wherein the source information is used to characterize the risk source of flooding at the substation; acquiring the scene information of the substation and the type of power supply service object of the substation, and analyzing the source information based on the location information and the river distribution information to obtain the analysis result and flood level of the substation, wherein the flood level is used to characterize the probability of the substation being flooded; in response to the analysis result indicating that the substation has experienced flooding, assessing the flood risk of the substation based on the scene information, the type of power supply service object, and the flood level to obtain the risk level of the substation, wherein the risk level is used to characterize the degree of loss due to flooding of the substation.

[0006] Optionally, the source information includes: flood source information and flood frequency information, wherein the flood frequency information is used to characterize the frequency of flooding at the substation. Based on location information and river distribution information, the source information is analyzed to obtain the flood level of the substation, including: inputting the flood source information and flood frequency information into a flood analysis model for analysis based on location information and river distribution information to obtain the substation's inundation water level data, wherein the flood analysis model is established using the substation's historical flood source information and historical flood frequency information; determining multiple key locations of the substation based on scene information, and multiple elevation data corresponding to each key location, wherein the key locations are the locations where the substation experiences water ingress and inundation, and the elevation data is used to characterize the height of the key locations relative to the ground; obtaining target elevation data from the multiple elevation data; and determining the flood level based on the inundation water level data and the target elevation data.

[0007] Optionally, the flood level can be determined based on the inundation water level data and the target elevation data, including: determining the inundation depth of the substation based on the inundation water level data and the target elevation data; and determining the flood level based on the inundation depth.

[0008] Optionally, the method further includes: in response to the flood water level data being greater than the target elevation data, determining the flood frequency information as the flood frequency information of the substation, wherein the flood frequency information is used to characterize the frequency at which the substation is flooded.

[0009] Optionally, in response to the analysis result indicating that the substation has experienced flooding, the flood risk of the substation is assessed based on scenario information, the type of power supply service object, and the flood level to obtain the risk level of the substation, including: in response to the analysis result indicating that the substation has experienced flooding, the inundation level of the substation is determined based on scenario information and the type of power supply service object, wherein the inundation level is used to characterize the severity of the flooding of the substation; and the risk level is determined based on the inundation level and the flood level.

[0010] Optionally, the risk level can be determined based on the inundation level and flood level, including: determining the risk value of the substation based on the inundation level and flood level; and determining the risk level based on the risk value and the flood risk level conditions of the substation.

[0011] Optionally, the method further includes: using target tools to generate a flood extent map and a risk level distribution map of the substation.

[0012] According to one aspect of the present invention, a flood risk assessment device for a substation is provided. The device may include: an acquisition unit, configured to acquire location information of the substation and river distribution information of the substation, and determine source information of the substation based on the location information and river distribution information, wherein the source information is used to characterize the risk source of flooding at the substation; an analysis unit, configured to acquire scene information of the substation and the type of power supply service object of the substation, and analyze the source information based on the location information and river distribution information to obtain an analysis result and a flood level of the substation, wherein the flood level is used to characterize the probability of the substation being flooded; and an assessment unit, configured to, in response to the analysis result indicating that the substation has been flooded, assess the flood risk of the substation based on the scene information, the type of power supply service object, and the flood level to obtain a risk level of the substation, wherein the risk level is used to characterize the degree of loss caused by flooding at the substation.

[0013] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein, when the program is run by a processor, it controls the device where the storage medium is located to execute the flood risk assessment method for substations according to the present invention.

[0014] According to another aspect of the present invention, an electronic device is also provided, the electronic device including one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to implement the flood risk assessment method for substations according to the present invention.

[0015] In this embodiment of the invention, the location information of the substation and the river distribution information of the substation are obtained, and the source information of the substation is determined based on the location information and the river distribution information, wherein the source information is used to characterize the risk source of flooding at the substation; the scene information of the substation and the type of power supply service object of the substation are obtained, and the source information is analyzed based on the location information and the river distribution information to obtain the analysis result and flood level of the substation, wherein the flood level is used to characterize the possibility of the substation being flooded; in response to the analysis result that the substation has been flooded, the flood risk of the substation is assessed based on the scene information, the type of power supply service object, and the flood level to obtain the risk level of the substation, wherein the risk level is used to characterize the degree of loss caused by the flooding of the substation. In other words, embodiments of the present invention can first obtain the location information of the substation and the river distribution information of the substation, and determine the source information of the substation based on the obtained location information and river distribution information. Then, it is necessary to obtain the scene information and power supply service object type of the substation, and analyze the obtained source information based on the location information and river distribution information to obtain the analysis results and flood level of the substation. Finally, if the analysis result indicates that the substation has been flooded, it is necessary to assess the flood risk of the substation based on the scene information, power supply service object type and flood level in order to obtain the risk level of the substation. Considering the need to determine the source information of a substation based on the obtained location and river distribution information, and then analyze the source information based on the location and river distribution information to obtain the analysis results of the substation and the flood results, if the analysis result indicates that the substation has been flooded, the flood risk of the substation can be assessed based on the obtained scenario information, the type of power supply service object, and the flood level, so as to obtain the risk level of the substation and solve the technical problem of being unable to reasonably assess the flood risk of the substation, thus achieving the technical effect of being able to reasonably assess the flood risk of the substation. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 This is a flowchart of a flood risk assessment method for a substation according to an embodiment of the present invention;

[0018] Figure 2 This is a flowchart of a method for assessing flood risk in substations (rooms) based on a water level hydrodynamic model and a risk matrix, according to an embodiment of the present invention.

[0019] Figure 3(a) is a schematic diagram of a 10-year design flood process according to an embodiment of the present invention;

[0020] Figure 3(b) is a schematic diagram of a 20-year design flood process according to an embodiment of the present invention;

[0021] Figure 3(c) is a schematic diagram of a 50-year design flood process according to an embodiment of the present invention;

[0022] Figure 3(d) is a schematic diagram of a 100-year design flood process according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram illustrating a 10-year flood design flood according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram illustrating a 20-year flood design flood according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of a 50-year flood design flood according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of a 100-year flood design flood according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the risk level distribution of a substation according to an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of a flood risk assessment device for a substation according to an embodiment of the present invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] According to an embodiment of the present invention, a method for assessing flood risk in a substation is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0032] Figure 1 This is a flowchart of a flood risk assessment method for a substation according to an embodiment of the present invention, such as... Figure 1 As shown, the method may include the following steps:

[0033] Step S101: Obtain the location information of the substation and the river distribution information of the substation, and determine the source information of the substation based on the location information and the river distribution information.

[0034] In the technical solution provided by step S101 of the present invention, the location information of the substation and the river distribution information of the substation can be obtained, and the source information of the substation can be determined based on the obtained location information, river distribution information, remote sensing image map and topographic map.

[0035] Optionally, river distribution information can be referred to as river system distribution information, or simply river system distribution. Source information is used to characterize the sources of risk or threat of flooding at substations, such as flash floods or river overflows.

[0036] For example, for each substation (room), based on the distribution of river systems and the location of the substation (room), combined with remote sensing images and topographic maps, specific analyses are conducted on the river channels that may pose a threat to it, in order to determine the source of potential flash floods or river overflows.

[0037] Optionally, if the substation is located in a city, the source information of the substation can be determined based on the historical flood information of the substation. For example, for a substation (room) located in the urban built-up area, it is also necessary to analyze whether the substation (room) may face the threat of rainstorm flooding based on the surrounding environment of the substation (room) and the local historical flood situation.

[0038] It should be noted that this is only a preferred implementation method for determining the source information of the substation, and the process and method for determining the source information of the substation are not specifically limited.

[0039] Step S102: Obtain the scene information of the substation and the type of power supply service object of the substation, and analyze the source information based on the location information and river distribution information to obtain the analysis results and flood level of the substation.

[0040] In the technical solution provided by step S102 of the present invention, after obtaining the location information and river distribution information, the scene information of the substation and the power supply service object type of the substation can be obtained, and the source information obtained can be analyzed according to the location information and river distribution information in order to obtain the analysis results and flood level of the substation.

[0041] Optionally, the substation scenario information can be referred to as the substation scenario. The flood level is used to characterize the probability of the substation being flooded, and can be called the probability level, or simply probability, represented by L, such as 1, 2, etc.

[0042] For example, the likelihood of a substation (room) being flooded is determined by factors such as the source and probability of the flood threat faced by the substation (room), its location, and the specific scenario.

[0043] Step S103: In response to the analysis result that the substation has been flooded, the flood risk of the substation is assessed based on the scenario information, the type of power supply service object and the flood level, and the risk level of the substation is obtained.

[0044] In the technical solution provided by step S103 of the present invention, if the analysis result obtained is that the substation is flooded, the flood risk of the substation can be assessed based on the scenario information, the scale of the substation, the type of power supply service object and the flood level, so as to obtain the risk level of the substation. The risk level is used to characterize the degree of loss caused by the flooding of the substation.

[0045] For example, based on the substation (room) scenario, scale, and type of power supply service recipients, the analysis can be performed on the potential physical damage and power outage impact of the substation (room) once it is flooded, thereby assessing the flood risk of the substation and obtaining the risk level.

[0046] It should be noted that this is merely a preferred embodiment for obtaining the risk level of a substation, and the process and method for obtaining the risk level of a substation are not specifically limited. Any process and method for obtaining the risk level of a substation based on scenario information, the type of power supply service recipient, and the flood level when flooding occurs is within the scope of protection of this invention, and will not be listed here.

[0047] In steps S101 to S103 of the present invention, the location information of the substation and the river distribution information of the substation can be obtained first. Based on the obtained location information and river distribution information, the source information of the substation can be determined. Then, the scene information and power supply service object type of the substation need to be obtained. Based on the location information and river distribution information, the obtained source information is analyzed to obtain the analysis results and flood level of the substation. Finally, if the analysis result indicates that the substation is flooded, the flood risk of the substation needs to be assessed based on the scene information, power supply service object type and flood level to obtain the risk level of the substation. Considering the need to determine the source information of a substation based on the obtained location and river distribution information, and then analyze the source information based on the location and river distribution information to obtain the analysis results of the substation and the flood results, if the analysis result indicates that the substation has been flooded, the flood risk of the substation can be assessed based on the obtained scenario information, the type of power supply service object, and the flood level, so as to obtain the risk level of the substation and solve the technical problem of being unable to reasonably assess the flood risk of the substation, thus achieving the technical effect of being able to reasonably assess the flood risk of the substation.

[0048] The method described in this embodiment will be further described below.

[0049] As an optional implementation, the source information includes: flood source information and flood frequency information, wherein the flood frequency information is used to characterize the frequency of flooding at the substation. Based on location information and river distribution information, the source information is analyzed to obtain the flood level of the substation, including: inputting the flood source information and flood frequency information into a flood analysis model for analysis based on location information and river distribution information to obtain the substation's inundation water level data, wherein the flood analysis model is established using the substation's historical flood source information and historical flood frequency information; determining multiple key locations of the substation based on scene information, and multiple elevation data corresponding to each key location, wherein the key locations are the locations where the substation experiences water ingress and inundation, and the elevation data is used to characterize the height of the key locations relative to the ground; obtaining target elevation data from the multiple elevation data; and determining the flood level based on the inundation water level data and the target elevation data.

[0050] In this embodiment, the flood source information and flood frequency information are first input into the flood analysis model based on the location information and river distribution information to obtain the substation inundation water level data. Then, based on the scene information, multiple key locations of the substation and multiple elevation data corresponding to the multiple key locations can be determined. The target elevation data is obtained from the multiple elevation data obtained above. Finally, based on the inundation water level data and the target elevation data, the purpose of determining the flood level is achieved.

[0051] Optionally, flood source information can be abbreviated as flood source. Flood frequency information can be abbreviated as flood frequency. For example, different frequency scenarios such as 10-year, 20-year, 50-year, or 100-year return periods can be selected to design rainstorms or design floods, and this can be denoted as f. 1 / n (n = 10, 20, 50, 100), where a smaller value of n indicates a greater likelihood of flooding.

[0052] Optionally, the inundation water level data, which can be simply referred to as the inundation water level, is obtained through the objective mapping function in the flood analysis model. The objective mapping function is used to characterize the functional relationship between the inundation water level of the substation and the rainfall or flood in the watershed where the substation is located.

[0053] For example, by employing suitable hydrodynamic simulation techniques, a flood analysis model can be constructed to calculate the inundation water level at the location of the substation (room) under different frequencies of rainstorms or floods, denoted as z. 1 / n =G(f 1 / n (n = 10, 20, 50, 100), where f 1 / n z is used to represent a design rainstorm or design flood with a frequency of 1 / n. 1 / n G is used to represent the substation inundation water level, and G is used to represent the functional relationship between the substation inundation water level and the rainfall or flood in the watershed where the substation is located.

[0054] Optionally, key locations can be referred to as key points, such as inlets / outlets, ventilation openings, or hoisting openings. Multiple elevation data points could then be the elevations of inlets / outlets, ventilation openings, or hoisting openings. Target elevation data can be preset elevation data, represented by z0. For example, the elevation data corresponding to the lowest point can be selected as the target elevation data from multiple elevation data points.

[0055] For example, based on the substation scenario, analyze the key points in the substation (room) that may be flooded and cause submersion, and their corresponding elevations (such as the elevations of inlets / outlets, ventilation openings, hoisting openings, etc.), thereby determining the elevation of the lowest point as the elevation z0 of the key point in the substation (room).

[0056] As an optional implementation method, the flood level is determined based on the inundation water level data and the target elevation data, including: determining the inundation depth of the substation based on the inundation water level data and the target elevation data; and determining the flood level based on the inundation depth.

[0057] In this embodiment, after obtaining the inundation water level data and target elevation data, the inundation depth of the substation can be determined based on these data, and then the flood level can be determined based on the obtained inundation depth. The inundation depth can be determined by h. 1 / n To express.

[0058] For example, a comparative analysis can be conducted under different design conditions for heavy rain or flooding, based on the substation (room) floodwater level z. 1 / n The substation's flood depth is calculated using the following formula, based on the elevation z0 of the lowest point of the substation (room):

[0059]

[0060] From the above formula, it can be seen that if the submerged water level z 1 / n If the difference between the elevation z0 of the lowest point of the substation (room) and the elevation z0 is greater than 0, then the submerged water depth of the substation at this time is the difference between the submerged water level and the elevation of the lowest point; if the submerged water level ... 1 / n If the difference between the elevation z0 of the lowest point of the substation (room) and the elevation z0 is less than 0, then the substation is submerged in water at this time.

[0061] Furthermore, after obtaining the flood depth, the maximum probability level of flooding of the substation (room) is determined based on the flood depth of the substation. The above probability level can be expressed by the following formula:

[0062]

[0063] In the above formula, L is used to represent the probability level of flooding of the substation.

[0064] As an optional embodiment, the method further includes: in response to the flood water level data being greater than the target elevation data, determining the flood frequency information as the flood frequency information of the substation, wherein the flood frequency information is used to characterize the frequency at which the substation is flooded.

[0065] In this embodiment, the floodwater level data and the target elevation data are compared. If the floodwater level data is greater than the target elevation data, the flood frequency information can be determined as the flood frequency information of the substation. For example, if a rainstorm of a certain magnitude occurs in the river basin where the substation (room) is located, and the resulting floodwater level exceeds the elevation of the key point of the substation, then the substation (room) is considered to be flooded, and the frequency of the flood that caused the substation (room) to be flooded is considered to be the frequency of the substation (room) flooding.

[0066] It should be noted that this is only a preferred embodiment for determining the substation inundation frequency information. The process and method for determining the substation inundation frequency information are not specifically limited. As long as the process and method of determining the flood frequency information as the substation inundation frequency information in response to the inundation water level data being greater than the target elevation data are within the protection scope of this invention, they will not be elaborated here.

[0067] As an optional implementation, in response to the analysis result indicating that the substation has been flooded, the flood risk of the substation is assessed based on scenario information, the type of power supply service object, and the flood level to obtain the risk level of the substation. This includes: in response to the analysis result indicating that the substation has been flooded, determining the inundation level of the substation based on scenario information and the type of power supply service object, wherein the inundation level is used to characterize the severity of the flooding of the substation; and determining the risk level based on the inundation level and the flood level.

[0068] In this embodiment, when a substation experiences flooding, the substation's inundation level is determined based on scenario information and the type of power supply service recipient. Then, based on the obtained inundation level and flood level, the risk level is determined. The inundation level, also known as severity, is represented by the letter S and can be divided into five levels, such as 1, 2, 3, 4, and 5.

[0069] For example, based on the substation (room)'s scenario, scale, and the type of power supply service recipients, the potential physical damage and power outage impacts that a substation (room) may suffer after being flooded can be analyzed. Furthermore, the severity of the substation being flooded can be divided into 5 levels, and the risk level can be determined based on the severity levels obtained above.

[0070] As an optional implementation method, the risk level is determined based on the inundation level and flood level, including: determining the risk value of the substation based on the inundation level and flood level; and determining the risk level based on the risk value and the flood risk level conditions of the substation.

[0071] In this embodiment, the risk value of the substation is determined based on the inundation level and flood level. Then, a flood risk matrix table is established based on the risk value obtained above. Based on the flood risk matrix table and the flood risk level conditions of the substation, the purpose of determining the risk level can be achieved.

[0072] Optionally, the product of the inundation level and the flood level can be used to determine the risk value. For example, when the inundation level is 3 and the flood level is 4, the corresponding risk value is 12. It should be noted that this is only a preferred implementation method for determining the risk value, and the process and method for determining the risk value are not specifically limited.

[0073] Optionally, the risk level can be determined based on the different flood risk level conditions that the risk value meets. The flood risk level conditions can be obtained through pre-set flood risk level standards.

[0074] Optionally, Table 1 is a flood risk matrix table for substations. As shown in Table 1, the risk value can be determined based on the probability L and the severity S. For example, when the probability L is 4 and the severity S is 3, the risk value is 12; when the probability L is 5 and the severity S is 5, the risk value is 25. It should be noted that different risk values ​​can be determined based on different probabilities L and different severity S, as shown in Table 1, which will not be listed here.

[0075] Optionally, Table 2 is a standard table of flood risk levels for substations. As shown in Table 2, the risk level can be determined based on the risk value. For example, when the risk value is 12, it falls within the risk value range of 10-15, corresponding to a risk level of III, and the corresponding risk description is "major risk." This indicates that the substation has a major risk of flooding. It should be noted that after obtaining the risk value, the risk value range within which different risk values ​​fall can be determined, thereby determining the corresponding risk level and risk description, as shown in Table 2, which will not be listed here.

[0076] Table 1 Flood Risk Matrix for Substations

[0077]

[0078] Table 2 Flood Risk Level Standards for Substations

[0079] Risk range 1～4 5～9 10～15 16～25 Risk Description General risks Significant risk Major risks Particularly important

[0080] Furthermore, based on the flood risk matrix table of the substation (Table 1), the risk value of the substation (room) is analyzed and calculated, and based on the flood risk level standard table of the substation (Table 2), the risk level of the substation is determined.

[0081] As an optional embodiment, the method further includes: using the target tool to generate a flood extent map and a risk level distribution map of the substation.

[0082] In this embodiment, a target tool can be used to generate a substation inundation range map and a risk level distribution map. The target tool can be a preset tool, such as a Geographic Information System (GIS) tool.

[0083] For example, using GIS tools, the inundation range map and risk level distribution map of the substation (room) can be drawn under different frequency flood conditions.

[0084] In this embodiment, the location information of the substation and the river distribution information of the substation can be obtained first. Based on the location information and river distribution information obtained above, the source information of the substation can be determined. Then, the scene information and power supply service object type of the substation need to be obtained. Based on the location information and river distribution information, the source information obtained above is analyzed to obtain the analysis results and flood level of the substation. Finally, if the analysis result is that the substation is flooded, the flood risk of the substation needs to be assessed based on the scene information, power supply service object type and flood level in order to obtain the risk level of the substation. Considering the need to determine the source information of a substation based on the obtained location and river distribution information, and then analyze the source information based on the location and river distribution information to obtain the analysis results of the substation and the flood results, if the analysis result indicates that the substation has been flooded, the flood risk of the substation can be assessed based on the obtained scenario information, the type of power supply service object, and the flood level, so as to obtain the risk level of the substation and solve the technical problem of being unable to reasonably assess the flood risk of the substation, thus achieving the technical effect of being able to reasonably assess the flood risk of the substation.

[0085] Example 2

[0086] The technical solutions of the embodiments of the present invention will be illustrated below with reference to preferred embodiments.

[0087] In recent years, with climate change and rapid socio-economic development, natural disasters such as torrential rains and floods have occurred frequently, often causing substations to be flooded and resulting in power outages. Torrential rains and floods not only cause substations to shut down and directly damage equipment and facilities, but more seriously, the shutdown of substations leads to power outages, further spreading the flood disaster chain and causing wider and longer-lasting economic losses and social impacts.

[0088] Flooding disasters affecting substations have drawn significant attention from all levels of government. However, for a long time, power grid companies have lacked sufficient understanding of the flood risks faced by substations. Moreover, due to rapid changes in the surrounding environment, the flood risks faced by substations also change rapidly; for example, a previously low-risk location may become a high-risk location, leading to technical problems that prevent the reasonable assessment of flood risks to substations.

[0089] Therefore, to address the aforementioned problems, this invention provides a flowchart of a substation (room) flood risk assessment method based on a water level-hydrodynamic model and a risk matrix. This method defines the substation (room) flood risk as the product of the likelihood of flooding and the severity of the flood damage, i.e., R = L × S. The likelihood and severity are quantified to assess the substation (room) flood risk level. The likelihood of flooding is obtained through analysis and calculation using a water level-hydrodynamic model based on design storms or floods at different frequencies. The severity of the flood is quantified based on indicators such as the substation (room) size and the target power supply. By considering both the likelihood and severity of flooding at substations, this invention achieves the goal of assessing the substation's flood risk and obtaining its risk level, thus solving the technical problem of the inability to reasonably assess substation flood risk and achieving the technical effect of enabling a reasonable assessment of substation flood risk.

[0090] Figure 2 This is a flowchart of a method for assessing flood risk in substations (rooms) based on a water level-hydrodynamic model and a risk matrix, according to an embodiment of the present invention. Figure 2 As shown, the flowchart mainly includes the following steps:

[0091] Step S201: Analyze the sources of threat of flooding in the substation (room).

[0092] In this embodiment, for each substation (room), based on the river system distribution and the location of the substation (room), combined with remote sensing imagery and topographic maps, a specific analysis is conducted on the rivers that may pose a threat, in order to determine the sources of potential flash floods or river overflows. For substations (rooms) located in urban built-up areas, it is also necessary to analyze whether the substation (room) may face the threat of rainstorm flooding based on the surrounding environment and local historical flooding conditions.

[0093] Step S202: Analyze the possibility of the substation being flooded and submerged.

[0094] In this embodiment, the probability level of a substation (room) being flooded is determined by factors such as the source and probability of the flood threat faced by the substation (room), its location, and the specific scenario. If a torrential flood of a certain magnitude occurs in the river basin where the substation (room) is located, causing the floodwater level to exceed the elevation of the substation's critical points, then the substation (room) is considered to be flooded, and the frequency of the flood causing the substation (room) to be flooded is considered to be the frequency of flooding of the substation (room). The main flow of the above analysis process is as follows:

[0095] Based on the source and type of flood at the substation, scenarios with different frequencies such as 10-year, 20-year, 50-year, or 100-year return periods are selected to design for rainstorms or design floods, which can be denoted as f. 1 / n (n = 10, 20, 50, 100), where a smaller value of n indicates a greater likelihood of flooding.

[0096] Based on the flood source and type of the substation, a flood analysis model is constructed using appropriate hydrodynamic simulation technology. This model calculates the inundation water level at the substation (or substation room) location under different frequencies of rainstorms or floods, denoted as z. 1 / n =G(f 1 / n (n = 10, 20, 50, 100), where f 1 / n z is used to represent a design rainstorm or design flood with a frequency of 1 / n. 1 / n G is used to represent the substation inundation water level, and G is used to represent the functional relationship between the substation inundation water level and the rainfall or flood in the watershed where the substation is located.

[0097] Based on the substation scenario, analyze the key points in the substation (room) that may be flooded and cause submersion, and their corresponding elevations (such as the elevations of inlets / outlets, ventilation openings, hoisting openings, etc.), thereby determining the elevation of the lowest point as the elevation z0 of the key point in the substation (room).

[0098] After obtaining the inundation water level and the lowest point elevation, a comparative analysis is conducted under different design rainstorm or flood conditions, based on the inundation water level z of the substation (room). 1 / n The substation's flood depth is calculated using the following formula, based on the elevation z0 of the lowest point of the substation (room):

[0099]

[0100] From the above formula, it can be seen that if the submerged water level z 1 / n If the difference between the elevation z0 of the lowest point of the substation (room) and the elevation z0 is greater than 0, then the submerged water depth of the substation at this time is the difference between the submerged water level and the elevation of the lowest point; if the submerged water level ... 1 / n If the difference between the elevation z0 of the lowest point of the substation (room) and the elevation z0 is less than 0, then the substation is submerged in water at this time.

[0101] Furthermore, after obtaining the flood depth, the maximum probability level of flooding of the substation (room) is determined based on the flood depth of the substation. The above probability level can be expressed by the following formula:

[0102]

[0103] In the above formula, L is used to represent the probability level of flooding of the substation.

[0104] Step S203: Determine the severity level S of the flooding of the substation (room).

[0105] In this embodiment, based on the substation (room) scenario, scale and power supply service type, the potential physical damage and power outage impact of the substation (room) after flooding are analyzed, and the severity of the substation after flooding can be divided into 5 levels.

[0106] Step S204: Determine the risk level based on the flood risk matrix.

[0107] In this embodiment, as shown in Table 1, the risk value of the substation (room) is analyzed and calculated based on the flood risk matrix table of the substation. As shown in Table 2, the risk level of the substation is determined based on the flood risk level standard table of the substation.

[0108] Step S205: Generate a risk level distribution map of the substation.

[0109] In this embodiment, GIS tools are used to draw the inundation range map and the risk level distribution map of the substation (room) under different frequency flood conditions.

[0110] In this embodiment, the location information of the substation and the river distribution information of the substation can be obtained first. Based on the location information and river distribution information obtained above, the source information of the substation can be determined. Then, the scene information and power supply service object type of the substation need to be obtained. Based on the location information and river distribution information, the source information obtained above is analyzed to obtain the analysis results and flood level of the substation. Finally, if the analysis result is that the substation is flooded, the flood risk of the substation needs to be assessed based on the scene information, power supply service object type and flood level in order to obtain the risk level of the substation. Considering the need to determine the source information of a substation based on the obtained location and river distribution information, and then analyze the source information based on the location and river distribution information to obtain the analysis results of the substation and the flood results, if the analysis result indicates that the substation has been flooded, the flood risk of the substation can be assessed based on the obtained scenario information, the type of power supply service object, and the flood level, so as to obtain the risk level of the substation and solve the technical problem of being unable to reasonably assess the flood risk of the substation, thus achieving the technical effect of being able to reasonably assess the flood risk of the substation.

[0111] In this embodiment of the invention, the flood risk assessment method for substations (rooms) based on the water level hydrodynamic model and risk matrix is ​​used to assess the flood risk of 12 substations (rooms). Table 3 shows the basic information of the 12 substations (rooms) in the Dashi River Basin. As shown in Table 3, when the serial number is 1, the corresponding substation (room) name is Zicaowu Station, and the basin area is 702 square kilometers (km²). 2 When the serial number is 2, the substation (room) name is Yancun North Station, and the drainage area is 706 km². 2 When the serial number is 3, the substation (room) name is Jiaozhuang Station, and the drainage area is 839 km². 2 It should be noted that different serial numbers correspond to different substations, and the watershed area corresponding to different substations is also different, as shown in Table 3, which will not be listed here.

[0112] Table 3. Basic Information on 12 Substations (Rooms) in the Dashi River Basin

[0113]

[0114] Alternatively, the drainage area of ​​the Dashi River is 2130 km². 2 This includes the main stream of the Dashi River, the Hedgehog River, the Dongsha River, the Jiakuo River, and the Doudian River. The mountainous sections and several smaller rivers at the foot of the mountains are located in the epicenter of torrential rains, experiencing rapid and violent flooding. In the plains sections, the river channels are narrow and winding, overgrown with vegetation, and the water flow is sluggish.

[0115] In this embodiment, the probability of flooding at the substation is analyzed based on the constructed water level-hydrodynamic model. The construction of the water level-hydrodynamic model can be achieved through the following steps: selection of the water level-hydrodynamic model and construction of the water level-hydrodynamic model.

[0116] Optionally, the selection of the water level-hydrodynamic model: Based on the characteristics of the river threatening flooding at the substation (room), namely the Dashi River, a self-developed one-dimensional coupled water level-hydrodynamic model is selected to construct the flood analysis model. This model comprises two basic modules: a one-dimensional river channel hydrodynamic model and a two-dimensional surface hydrodynamic model. The one-dimensional river channel hydrodynamic model can be represented by the following equation:

[0117]

[0118] In the above formula, U, F, and S are used to represent the original variable, flux, and source term, respectively, and are defined as follows:

[0119]

[0120] In the above formula, A represents the cross-sectional area of ​​the water flow, Q represents the flow rate of the cross-sectional area, η represents the elevation of the free surface of the water flow, n represents the Manning coefficient, R = A / P represents the hydraulic radius, and P represents the wetted perimeter.

[0121] Furthermore, the two-dimensional hydrodynamic model of the Earth's surface can be represented by the following formula:

[0122]

[0123] In the above equation, U represents the conserved variable, F and G represent the fluxes in the x and y directions, respectively, and S represents the source term, which is derived from the bottom slope source term S. b and resistance source term S f Composition. Its component forms can be as follows:

[0124]

[0125] In the above formula, h represents the standard water depth. u and v represent the flow velocities in the x and y directions, respectively. z represents the surface elevation. g represents the acceleration due to gravity. C f The coefficient of friction is used to represent the friction factor and can be calculated using the following formula:

[0126] C f =gn 2 / h 1 / 3

[0127] In the above formula, n is used to represent a fixed coefficient (such as the Manning coefficient) to characterize the obstruction effect of factors such as surface roughness on water flow.

[0128] Optionally, the water level and hydrodynamic model is constructed as follows: the upper boundary of the model is the hydrological station of the flooded river. To reduce the influence of the downstream boundary, the lower boundary is set approximately 5 kilometers (km) downstream from a certain geographical boundary. The total simulated river length is 29 km, and 1928 river cross-sections are arranged. A two-dimensional surface model of the left and right banks of the main stream of the Dashi River is constructed, covering an area of ​​approximately 1280 km². 2 The grid was divided at intervals of 5-20m. The one-dimensional model of the main stream of the Dashi River and the two-dimensional models of the land surface on both banks were fully coupled along the riverbank to achieve the construction range of the one-dimensional coupled model.

[0129] In this embodiment of the invention, flood analysis results can be obtained based on the above analysis process. The upstream Manshuihe hydrological station of the Dashi River is included in the design flood processes with return periods of 10, 20, 50, and 100 years, respectively. Seven tributaries, including the Dingjiawa River, Dongsha River, Zhoukoudian River, Mapaoquan River, Doudian River, Jiakuo River, and Liugudaogou, are included in the same frequency design flood processes. Using the above model, the flood characteristics, such as the inundation status and inundation depth of the substation (room), are calculated under different frequency flood conditions along the Dashi River.

[0130] Optionally, Figure 3(a) is a schematic diagram of a 10-year return period design flood process according to an embodiment of the present invention; Figure 3(b) is a schematic diagram of a 20-year return period design flood process according to an embodiment of the present invention; Figure 3(c) is a schematic diagram of a 50-year return period design flood process according to an embodiment of the present invention; and Figure 3(d) is a schematic diagram of a 100-year return period design flood process according to an embodiment of the present invention. From the above four figures, the flow rates (unit: cubic meters per second) of different rivers under different time periods (unit: hours h) of flooding at the substation can be obtained. 3 / s), of which Dingjiawa River, Dongsha River, Zhoukoudian River, Mapaoquan River, Doudian River, Jiakuo River and Liugudao Ditch are all tributaries of the main stream of Dashi River.

[0131] Table 4. Flood Analysis Results of Substations on the Main Stream of the Dashi River

[0132]

[0133]

[0134] Optionally, Figure 4 This is a schematic diagram of a 10-year flood design based on an embodiment of the present invention, as shown below. Figure 4 As shown, the inundation status of different substations in the Dashi River basin after a designed 10-year flood event can be observed. Figure 5 This is a schematic diagram of a 20-year flood design based on an embodiment of the present invention, as shown below. Figure 5 As shown, the inundation status of different substations in the Dashi River basin after a flood designed for a 20-year return period can be observed. Figure 6 This is a schematic diagram of a 50-year flood design based on an embodiment of the present invention, as shown below. Figure 6 As shown, the inundation status of different substations in the Dashi River basin after a flood designed for a 50-year return period can be observed. Figure 7 This is a schematic diagram of a 100-year flood design based on an embodiment of the present invention, as shown below. Figure 7 As shown, this illustrates the inundation status of different substations in the Dashi River basin after a designed 100-year flood event. The location of the Manshuihe station is shown.

[0135] Optionally, Table 4 presents the flood analysis results for substations along the main stream of the Dashi River, showing the flood inundation range and the inundation depth of the affected substations (rooms) calculated using a flood analysis model. It should be noted that " / " in Table 4 indicates that the substations were not flooded.

[0136] Table 5. Statistical Table of Flood Risk Probability Levels for Substations on the Main Stream of the Dashi River

[0137]

[0138] Optionally, Table 5 is a statistical table of the flood risk probability levels of substations along the main stream of the Dashi River. As shown in Table 5, by analyzing the probability of flooding of substations, the flood risk probability level of each station can be obtained.

[0139] In this embodiment, the severity of flooding at a substation is analyzed. Table 6 is a schematic table illustrating the flood risk severity of a typical substation (room) in a certain region. As shown in Table 6, when the severity after the risk occurs is extremely low, the corresponding qualitative description is general residents, and the quantitative value is 1; when the severity after the risk occurs is low, the corresponding qualitative description is important areas (important enterprises and institutions), and the quantitative value is 2. It should be noted that different qualitative descriptions and quantitative values ​​can correspond to the severity after the risk occurs, as shown in Table 6, which will not be listed here.

[0140] Table 6. Schematic diagram of flood risk severity of typical substations (rooms) in a certain region.

[0141] Extremely low General residents 1 Low Important areas (important enterprises and institutions) 2 medium Vulnerable areas (hospitals, nursing homes, schools) 3 high Lifeline projects (transportation, water supply, gas) 4 Extremely high Core functional area (emergency command center) 5

[0142] In this embodiment, a survey and analysis of historical flood disaster events at substations (rooms) will be conducted. Using methods such as the Analytic Hierarchy Process (AHP), an index system for the severity of flood consequences at substations (rooms) will be constructed, considering factors such as substation (room) size and the target power supply recipients, to quantify the severity of the consequences. Table 7 is a statistical table of the severity levels of substations (rooms). As shown in Table 7, when the serial number is 1, the substation name is Zicaowu Station, and the corresponding severity indexes are: substation size 1, service area level 3, and index 3, resulting in a severity level of 3. When the serial number is 2, the substation name is Yancun North Station, and the corresponding severity indexes are: substation size 2, service area level 2, index 4, and severity level 4. It should be noted that different serial numbers correspond to different substation names, and different substation names correspond to different severity indices and severity levels, as shown in Table 7, which will not be listed here.

[0143] Table 7 Severity Level Statistics of Substations (Rooms)

[0144]

[0145]

[0146] In this embodiment, the risk matrix method can be used to assess the flood risk level of a substation. The general process of risk assessment using the risk matrix method includes: risk identification, probability assessment and severity assessment, drawing a risk matrix, and determining the risk level.

[0147] Optionally, risk identification involves analyzing and determining potential risk events; analyzing the probability and severity of risk events and assigning a score from 1 to 5. This is typically done using historical data, expert experience, numerical simulations, etc.; calculating the risk value using the formula R = L * S; then finding the corresponding risk value in a two-dimensional matrix diagram; and finally determining the risk level of the risk event according to risk level standards.

[0148] Table 8. Statistical Results of Flood Risk Levels of Substations (Rooms) in the Dashi River Basin

[0149]

[0150]

[0151] Optionally, based on Tables 1 and 2 above, Table 8 can be obtained. Table 8 is a statistical result table of flood risk levels for substations (rooms) in the Dashi River Basin, as shown in Table 7. When the serial number is 1, the corresponding station name is Zicaowu Station, and the corresponding probability level is 1, severity level is 3, risk value is 3, and risk level is general risk. When the serial number is 2, the corresponding station name is Yancunbei Station, and the corresponding probability level is 1, severity level is 4, risk value is 4, and risk level is general risk. It should be noted that after obtaining the risk values ​​of different stations, the risk level can be determined based on Tables 1 and 2, as shown in Table 8, which will not be listed here.

[0152] Optionally, Figure 8 This is a schematic diagram of the risk level distribution of a substation according to an embodiment of the present invention, such as... Figure 8 As shown, GIS tools can be used to draw a risk level distribution map of substations.

[0153] It should be noted that the Dingjiawa River, Dongsha River, Zhoukoudian River, Mapaoquan River, Doudian River, Jiakuo River, Liugudaogou and the main stream of Dashi River mentioned in the above embodiments, as well as the multiple substations in the Dashi River Basin such as Zicaowu Station and Yancun North Station, are only examples for illustration, and do not specifically limit the location of the basin, the name of the basin, or the name of the substation in different basin locations.

[0154] In this embodiment, the location information of the substation and the river distribution information of the substation can be obtained first. Based on the location information and river distribution information obtained above, the source information of the substation can be determined. Then, the scene information and power supply service object type of the substation need to be obtained. Based on the location information and river distribution information, the source information obtained above is analyzed to obtain the analysis results and flood level of the substation. Finally, if the analysis result is that the substation is flooded, the flood risk of the substation needs to be assessed based on the scene information, power supply service object type and flood level in order to obtain the risk level of the substation. Considering the need to determine the source information of a substation based on the obtained location and river distribution information, and then analyze the source information based on the location and river distribution information to obtain the analysis results of the substation and the flood results, if the analysis result indicates that the substation has been flooded, the flood risk of the substation can be assessed based on the obtained scenario information, the type of power supply service object, and the flood level, so as to obtain the risk level of the substation and solve the technical problem of being unable to reasonably assess the flood risk of the substation, thus achieving the technical effect of being able to reasonably assess the flood risk of the substation.

[0155] According to an embodiment of the present invention, a flood risk assessment device for a substation is provided. It should be noted that this flood risk assessment device for a substation can be used to perform a flood risk assessment method for a substation as described in the embodiment.

[0156] Figure 9 This is a schematic diagram of a flood risk assessment device for a substation according to an embodiment of the present invention. Figure 9 As shown, a flood risk assessment device 900 for a substation may include: an acquisition unit 901, an analysis unit 902, and an assessment unit 903.

[0157] The acquisition unit 901 is used to acquire the location information of the substation and the river distribution information of the substation, and based on the location information and river distribution information, to determine the source information of the substation, wherein the source information is used to characterize the risk source of flooding at the substation.

[0158] Analysis unit 902 is used to acquire scene information of the substation and the type of power supply service object of the substation. Based on location information and river distribution information, it analyzes the source information to obtain the analysis results and flood level of the substation. The flood level is used to characterize the possibility of the substation being flooded.

[0159] Assessment unit 903 is used to assess the flood risk of a substation in response to the analysis result that the substation has been flooded, based on scenario information, the type of power supply service object and the flood level, to obtain the risk level of the substation. The risk level is used to characterize the degree of loss caused by the flooding of the substation.

[0160] Optionally, the source information includes: flood source information and flood frequency information, wherein the flood frequency information is used to characterize the frequency of flooding at the substation. The analysis unit 902 may include: analyzing the source information based on location information and river distribution information to obtain the flood level of the substation, including: an analysis module, used to input the flood source information and flood frequency information into a flood analysis model for analysis based on location information and river distribution information to obtain the substation's inundation water level data, wherein the flood analysis model is established using the substation's historical flood source information and historical flood frequency information; a first determination module, used to determine multiple key locations of the substation based on scene information, and multiple elevation data corresponding to the multiple key locations, wherein the key locations are the locations where the substation experiences water ingress and causes inundation, and the elevation data is used to characterize the height of the key locations relative to the ground; an acquisition module, used to acquire target elevation data from the multiple elevation data; and a second determination module, used to determine the flood level based on the inundation water level data and the target elevation data.

[0161] Optionally, the second determining module may include: a first determining submodule, used to determine the submerged water depth of the substation based on the submerged water level data and the target elevation data; and a second determining submodule, used to determine the flood level based on the submerged water depth.

[0162] Optionally, the second determining module may further include: a third determining submodule, used to determine the flood frequency information as the substation's inundation frequency information in response to the inundation water level data being greater than the target elevation data, wherein the inundation frequency information is used to characterize the frequency at which the substation is flooded.

[0163] Optionally, the assessment unit 903 may include: a third determination module, used to determine the inundation level of the substation based on scenario information and the type of power supply service object in response to the analysis result that the substation has been flooded, wherein the inundation level is used to characterize the severity of the flooding of the substation; and a fourth determination module, used to determine the risk level based on the inundation level and the flood level.

[0164] Optionally, the fourth determining module may include: a fourth determining submodule, used to determine the risk value of the substation based on the inundation level and flood level; and a fifth determining submodule, used to determine the risk level based on the risk value and the flood risk level conditions of the substation.

[0165] Optionally, the device further includes a generation unit for generating a flood extent map and a risk level distribution map of the substation using the target tool.

[0166] In this embodiment, the acquisition unit acquires the substation's location information and river distribution information, and determines the substation's source information based on the location and river distribution information. The source information characterizes the risk source of flooding at the substation. The analysis unit acquires the substation's scenario information and the type of power supply service object, and analyzes the source information based on the location and river distribution information to obtain the substation's analysis result and flood level. The flood level characterizes the likelihood of the substation being flooded. In response to the analysis result indicating flooding at the substation, the evaluation unit assesses the flood risk of the substation based on the scenario information, the type of power supply service object, and the flood level, obtaining the substation's risk level. The risk level characterizes the extent of loss due to flooding at the substation. This addresses the technical problem of being unable to reasonably assess the flood risk of substations, achieving the technical effect of being able to reasonably assess the flood risk of substations.

[0167] According to an embodiment of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein, when the program is run by a processor, it controls the device where the storage medium is located to execute the flood risk assessment method for a substation in the embodiment.

[0168] According to embodiments of the present invention, an electronic device is also provided, including one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to implement the flood risk assessment method for substations in the embodiments.

[0169] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0170] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0171] In the several embodiments provided by this invention, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed can be through some interfaces; the indirect coupling or communication connection of units or modules can be electrical or other forms.

[0172] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0173] Furthermore, the functional units in the various embodiments of the present invention 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 integrated unit can be implemented in hardware or as a software functional unit.

[0174] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0175] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for assessing flood risk in substations, characterized in that, include: The location information of the substation and the river distribution information of the substation are obtained, and based on the location information and the river distribution information, the source information of the substation is determined. The source information is used to characterize the risk source of flooding of the substation. The source information includes: flood source information and flood frequency information, wherein the flood frequency information is used to characterize the frequency of flooding of the substation. The scene information of the substation and the type of power supply service object of the substation are obtained, and the source information is analyzed based on the location information and the river distribution information to obtain the analysis results and flood level of the substation, wherein the flood level is used to characterize the possibility of the substation being flooded; In response to the analysis result that the substation has been flooded, the flood risk of the substation is assessed based on the scenario information, the type of power supply service object, and the flood level to obtain the risk level of the substation, wherein the risk level is used to characterize the degree of loss caused by the flooding of the substation; The process of analyzing the source information based on the location information and the river distribution information to obtain the flood level of the substation includes: inputting the flood source information and the flood frequency information into a flood analysis model for analysis based on the location information and the river distribution information to obtain the substation's inundation water level data, wherein the flood analysis model is established using the substation's historical flood source information and historical flood frequency information; determining multiple key locations of the substation based on the scene information, and multiple elevation data corresponding to each of the multiple key locations, wherein the key locations are the locations where the substation experiences water ingress and inundation, and the elevation data are used to characterize the height of the key locations relative to the ground; obtaining target elevation data from the multiple elevation data; and determining the flood level based on the inundation water level data and the target elevation data.

2. The method according to claim 1, characterized in that, Determining the flood level based on the inundation water level data and the target elevation data includes: Based on the floodwater level data and the target elevation data, the floodwater depth of the substation is determined; The flood level is determined based on the inundation depth.

3. The method according to claim 2, characterized in that, The method further includes: In response to the flood water level data being greater than the target elevation data, the flood frequency information is determined as the flood frequency information of the substation, wherein the flood frequency information is used to characterize the frequency at which the substation is flooded.

4. The method according to claim 1, characterized in that, In response to the analysis result indicating that the substation has experienced flooding, based on the scenario information, the type of power supply service recipient, and the flood level, the flood risk of the substation is assessed to obtain the risk level of the substation, including: In response to the analysis result that the substation has been flooded, the inundation level of the substation is determined based on the scenario information and the type of power supply service object, wherein the inundation level is used to characterize the severity of the flooding of the substation; The risk level is determined based on the inundation level and the flood level.

5. The method according to claim 4, characterized in that, Determining the risk level based on the inundation level and the flood level includes: Based on the inundation level and the flood level, the risk value of the substation is determined; The risk level is determined based on the risk value and the flood risk level conditions of the substation.

6. The method according to any one of claims 1 to 5, characterized in that, The method also includes: using target tools to generate a flood range map and a risk level distribution map of the substation.

7. A flood risk assessment device for a substation, characterized in that, include: An acquisition unit is used to acquire the location information of the substation and the river distribution information of the substation, and based on the location information and the river distribution information, determine the source information of the substation, wherein the source information is used to characterize the risk source of flooding of the substation, and the source information includes: flood source information and flood frequency information, wherein the flood frequency information is used to characterize the frequency of flooding of the substation; The analysis unit is used to acquire scene information of the substation and the type of power supply service object of the substation, and analyze the source information based on the location information and the river distribution information to obtain the analysis results and flood level of the substation, wherein the flood level is used to characterize the possibility of the substation being flooded. An assessment unit is used to assess the flood risk of the substation based on the scenario information, the type of power supply service object, and the flood level in response to the analysis result that the substation has been flooded, and to obtain the risk level of the substation, wherein the risk level is used to characterize the degree of loss caused by the flooding of the substation; The analysis unit is further configured to input the flood source information and the flood frequency information into a flood analysis model based on the location information and the river distribution information to obtain the substation's inundation water level data. The flood analysis model is established using the substation's historical flood source information and historical flood frequency information. Based on the scenario information, the unit determines multiple key locations of the substation and multiple elevation data corresponding to each key location. The key locations are the locations where the substation experiences flooding, and the elevation data characterizes the height of each key location relative to the ground. The unit then obtains target elevation data from the multiple elevation data and determines the flood level based on the inundation water level data and the target elevation data.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein when the program is run by a processor, it controls the device in which the storage medium is located to perform the method of any one of claims 1 to 6.

9. An electronic device, characterized in that, It includes one or more processors and a memory for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to implement the method of any one of claims 1 to 6.

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