Flood risk assessment method and device for transformer substation, storage medium and electronic equipment

Abstract

The invention discloses a flood risk assessment method and device for a transformer substation, a storage medium and electronic equipment. The method comprises the steps of obtaining position information and river distribution information of a transformer substation, and determining source information of the transformer substation based on the position information and the river distribution information; the scene information of the transformer substation and the power supply service object type of the transformer substation are obtained, the source information is analyzed based on the position information and the river distribution information, the analysis result and the flood level of the transformer substation are obtained, and the flood level is used for representing the possibility that the transformer substation is flooded; and in response to the analysis result that the transformer substation floods, evaluating the flood risk of the transformer substation based on the scene information, the power supply service object type and the flood level to obtain the risk level of the transformer substation, the risk level being used for representing the loss degree of the transformer substation being flooded. The technical problem that the flood risk of the transformer substation cannot be reasonably evaluated is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of risk assessment of substations, and in particular to a method, device, storage medium and electronic equipment for assessing flood risk of substations. Background Art

[0002] In recent years, with climate change and rapid socio-economic development, rainstorms and floods have occurred frequently, often causing substations (rooms) to be flooded and causing power outages. Due to the rapid changes in the flood risk faced by substations (rooms) and the lack of experience of staff in avoiding floods in substations, the technical problem of being unable to reasonably assess the flood risk of substations has arisen.

[0003] With respect to the above-mentioned technical problem of being unable to reasonably assess the flood risk of substations, no effective solution has been proposed so far. Summary of the invention

[0004] The embodiments of the present invention provide a method, device, storage medium and electronic device for assessing flood risk of a substation, so as to at least solve the technical problem that it is impossible to reasonably assess flood risk of a substation.

[0005] According to one aspect of the embodiments of the invention, a method for assessing flood risk of a substation is provided. The method may include: obtaining location information of the substation and river distribution information of the substation, and determining source information of the substation based on the location information and river distribution information, wherein the source information is used to characterize the source of risk of flooding of the substation; obtaining 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 river distribution information to obtain analysis results and flood levels of the substation, wherein the flood level is used to characterize the possibility of flooding of the substation; in response to the analysis result that the substation is flooded, based on the scene information, the type of power supply service object and the flood level, assessing the flood risk of the substation to obtain the risk level of the substation, wherein the risk level is used to characterize the degree of loss caused by 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 floods occurring in the substation, and the source information is analyzed based on the location information and river distribution information to obtain the flood level of the substation, including: based on the location information and river distribution information, the flood source information and flood frequency information are input into a flood analysis model for analysis to obtain the substation's inundation water level data, wherein the flood analysis model is established based on the substation's historical flood source information and historical flood frequency information; based on the scene information, multiple key locations of the substation are determined, as well as multiple elevation data corresponding to the multiple key locations, wherein the key location is a location where water ingress occurs in the substation and causes inundation, and the elevation data is used to characterize the height of the key location relative to the ground; target elevation data are obtained from multiple elevation data; and the flood level is determined based on the inundation water level data and the target elevation data.

[0007] Optionally, determining the flood grade based on the flooding water level data and the target elevation data includes: determining the flooding water depth of the substation based on the flooding water level data and the target elevation data; and determining the flood grade based on the flooding water depth.

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

[0009] Optionally, in response to the analysis result that a flood has occurred in the substation, the flood risk of the substation is assessed based on scenario information, power supply service object type and flood level to obtain the risk level of the substation, including: in response to the analysis result that a flood has occurred in the substation, based on scenario information and power supply service object type, determining the inundation level of the substation, 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.

[0010] Optionally, determining the risk level based on the inundation level and the flood level includes: determining the risk value of the substation based on the inundation level and the flood level; determining the risk level based on the risk value and the flood risk level condition of the substation.

[0011] Optionally, the method further includes: generating a flooding range map and a risk level distribution map of the substation using a target tool.

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

[0013] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is also provided, which includes a stored program, wherein when the program is executed by a processor, the device where the storage medium is located is controlled to execute the flood risk assessment method for a substation of an embodiment of the present invention.

[0014] According to another aspect of an embodiment of the present invention, an electronic device is also provided, which includes 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 one or more processors, the one or more processors implement the flood risk assessment method for a substation according to an embodiment of the present invention.

[0015] In an embodiment of the present invention, location information of a substation and river distribution information of the substation are obtained, and based on the location information and the river distribution information, source information of the substation is determined, wherein the source information is used to characterize the source of risk of flooding in the substation; scenario information of the substation and the type of power supply service object of the substation are obtained, and based on the location information and the river distribution information, the source information is analyzed to obtain an analysis result and a flood level of the substation, wherein the flood level is used to characterize the possibility of flooding of the substation; in response to the analysis result that a flood has occurred in the substation, the flood risk of the substation is evaluated 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 flooding of the substation. That is to say, the embodiment 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 above-obtained location information and river distribution information, and then need to obtain the scene information and power supply service object type of the substation, and analyze the above-obtained source information based on the location information and river distribution information, so as to achieve the purpose of obtaining the analysis result and flood level of the substation. Finally, if the analysis result is that a flood has occurred in the substation, it is necessary to evaluate the flood risk of the substation based on the scene information, power supply service object type and flood level, so as to obtain the risk level of the substation. Considering that the source information of the substation is determined based on the obtained location information and river distribution information, and then the source information is analyzed based on the location information and river distribution information to obtain the analysis results and flood results of the substation. If the analysis result is that a flood has occurred in the substation, the flood risk of the substation can be evaluated based on the obtained scene information, power supply service object type and flood level, so as to achieve the purpose of obtaining the risk level of the substation, so as to solve the technical problem of being unable to reasonably evaluate the flood risk of the substation and achieve the technical effect of being able to reasonably evaluate the flood risk of the substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 is a flow chart of a method for assessing flood risk of a substation according to an embodiment of the present invention;

[0018] Figure 2 is a flow chart of a method for assessing flood risk of a substation (room) based on a water level hydrodynamic model and a risk matrix according to an embodiment of the present invention;

[0019] FIG3( a ) is a schematic diagram of a 10-year design flood process according to an embodiment of the present invention;

[0020] FIG3( b ) is a schematic diagram of a 20-year design flood process according to an embodiment of the present invention;

[0021] FIG3( c ) is a schematic diagram of a 50-year design flood process according to an embodiment of the present invention;

[0022] FIG3( d ) is a schematic diagram of a 100-year design flood process according to an embodiment of the present invention;

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

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

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

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

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

[0028] Fig. 9 is a schematic diagram of a flood risk assessment device for a substation according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof 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 necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

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

[0032] Figure 1 is a flow chart of a method for assessing flood risk in a substation according to an embodiment of the present invention. Figure 1 As shown, the method may include the following steps:

[0033] Step S101, obtaining location information of the substation and river distribution information of the substation, and determining source information of the substation based on the location information and the river distribution information.

[0034] In the technical solution provided in the above 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 above-obtained location information, river distribution information, remote sensing image map and topographic map.

[0035] Optionally, the river distribution information may be referred to as river system distribution information, or simply referred to as river system distribution. The source information is used to characterize the risk source or threat source of flooding of the substation, such as mountain torrents or river overflow.

[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, a specific analysis is conducted on the rivers that may pose a threat to it, in order to determine the source of possible mountain torrents 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 a built-up area of ​​a city, it is also necessary to analyze whether the substation may face the threat of heavy rain and waterlogging based on the surrounding environment of the substation (room) and local historical flood conditions.

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

[0039] Step S102, obtaining 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 river distribution information to obtain the analysis result and flood level of the substation.

[0040] In the technical solution provided in the above 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 obtained source information can be analyzed based on the location information and river distribution information to obtain the analysis results and flood level of the substation.

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

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

[0043] Step S103, in response to the analysis result that a flood occurs in the substation, the flood risk of the substation is evaluated based on the scene information, the type of power supply service object and the flood level to obtain the risk level of the substation.

[0044] In the technical solution provided in the above step S103 of the present invention, according to the analysis results of the above steps, if the analysis result obtained is that a flood occurs in the substation, the flood risk of the substation can be evaluated based on the scene information, the scale of the substation, the type of power supply service object and the flood level, so as to achieve the purpose of obtaining 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.

[0045] For example, based on the substation (room) scenario, scale and type of power supply service object, the physical damage and power outage impact that may be caused to the substation (room) once it is flooded is analyzed, and the flood risk of the substation is assessed to obtain the risk level.

[0046] It should be noted that this is only a preferred implementation method for obtaining the risk level of a substation, and does not specifically limit the process and method for obtaining the risk level of a substation. As long as a flood occurs in a substation, the process and method for obtaining the risk level of the substation according to the scene information, the type of power supply service object and the flood level are within the scope of protection of the present invention and are not listed here.

[0047] In the above steps S101 to S103 of the present invention, the location information of the substation and the river distribution information of the substation can be first obtained, and the source information of the substation can be determined based on the above obtained location information and river distribution information. Then, the scene information and power supply service object type of the substation need to be obtained, and the above obtained source information is analyzed based on the location information and river distribution information to achieve the purpose of obtaining the analysis result and flood level of the substation. Finally, if the analysis result is that a flood has occurred in the substation, it is necessary to evaluate the flood risk of the substation based on the scene information, the power supply service object type and the flood level, so as to obtain the risk level of the substation. Considering that the source information of the substation is determined based on the obtained location information and river distribution information, and then the source information is analyzed based on the location information and river distribution information to obtain the analysis results and flood results of the substation. If the analysis result is that a flood has occurred in the substation, the flood risk of the substation can be evaluated based on the obtained scene information, power supply service object type and flood level, so as to achieve the purpose of obtaining the risk level of the substation, so as to solve the technical problem of being unable to reasonably evaluate the flood risk of the substation and achieve the technical effect of being able to reasonably evaluate the flood risk of the substation.

[0048] The above method of this embodiment is further introduced below.

[0049] As an optional implementation method, the source information includes: flood source information and flood frequency information, wherein the flood frequency information is used to characterize the frequency of floods occurring in the substation. Based on the location information and the river distribution information, the source information is analyzed to obtain the flood level of the substation, including: based on the location information and the river distribution information, the flood source information and the flood frequency information are input into a flood analysis model for analysis to obtain the substation's inundation water level data, wherein the flood analysis model is established through the substation's historical flood source information and historical flood frequency information; based on the scene information, multiple key locations of the substation are determined, as well as multiple elevation data corresponding to the multiple key locations, wherein the key location is a location where water ingress occurs in the substation and causes inundation, and the elevation data is used to characterize the height of the key location relative to the ground; target elevation data are obtained from multiple elevation data; and the flood level is determined 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 for analysis based on the location information and river distribution information, so as to obtain the substation flooding 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, and finally, the purpose of determining the flood level is achieved based on the substation flooding level data and the target elevation data.

[0051] Optionally, the flood source information is referred to as flood source. The flood frequency information can be referred to as flood frequency. For example, different frequency scenarios such as 10-year, 20-year, 50-year or 100-year return periods are selected as design rainstorms or design floods, and can be recorded as f 1 / n (n=10, 20, 50, 100), where the smaller the n value, the greater the possibility of flooding.

[0052] Optionally, the flooding water level data may be referred to as the flooding water level, which is obtained by a target mapping function in a flood analysis model, wherein the target mapping function is used to characterize the functional relationship between the flooding water level of the substation and the rainfall or flood in the basin where the substation is located.

[0053] For example, appropriate hydrological dynamic simulation technology is used to construct a flood analysis model to calculate the flooding 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 Used to indicate a design rainstorm or design flood with a frequency of 1 / n, z 1 / n It is used to indicate the flooding water level of the substation, and G is used to indicate the functional relationship between the flooding water level of the substation and the rainfall or flood in the basin where the substation is located.

[0054] Optionally, the key position may be referred to as a key point, such as an inlet and outlet, a vent, or a hoisting port, etc., and the plurality of elevation data may be the elevation of the inlet and outlet, the elevation of the vent, or the elevation of the hoisting port, etc. The target elevation data may be preset elevation data, represented by z0, for example, the elevation data corresponding to the lowest point is selected from the plurality of elevation data as the target elevation data.

[0055] For example, according to the substation scenario, analyze the key points of the substation (room) that may be flooded and cause flooding and their corresponding elevations (such as the elevations of inlets and outlets, ventilation openings, and lifting openings), so as to determine the elevation of the lowest point as the elevation z0 of the key point of the substation (room).

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

[0057] In this embodiment, after the flooding water level data and the target elevation data are obtained, the flooding water depth of the substation can be determined according to the flooding water level data and the target elevation data, and then the flood level can be determined according to the flooding water depth obtained above. 1 / n To express.

[0058] For example, a comparative analysis is conducted on the substation (room) flooding water level under different design rainstorms or floods. 1 / n The substation (room) is at its lowest point, z0, and the substation flooding depth is calculated using the following formula:

[0059]

[0060] From the above formula, we can see that if the flooding water level z 1 / n If the difference between the substation (room) and the lowest point elevation z0 is greater than 0, the substation flooding depth at this time is the difference between the flooding water level and the lowest point elevation; if the flooding water level z 1 / n If the difference between the elevation z0 of the lowest point of the substation (room) and that of the lowest point is less than 0, the substation's flooded water depth is 0 at this time.

[0061] Further, after obtaining the flooding depth, the maximum possibility level of causing the substation (room) to be flooded is determined according to the flooding depth of the substation. The above possibility level can be expressed by the following formula:

[0062]

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

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

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

[0066] It should be noted that this is only a preferred implementation method for determining the substation's flooding frequency information, and does not specifically limit the process and method for determining the substation's flooding frequency information. As long as the process and method for determining the flood frequency information as the substation's flooding frequency information in response to the flooding water level data being greater than the target elevation data are within the protection scope of the present invention, and will not be repeated here.

[0067] As an optional implementation method, in response to the analysis result that a flood has occurred in the substation, the flood risk of the substation is evaluated based on the 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 that a flood has occurred in the substation, based on the scenario information and the type of power supply service object, determining the inundation level of the substation, 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 flood occurs in a substation, the substation flooding level is determined according to the scene information and the type of power supply service object, and then the risk level is determined according to the above-obtained flooding level and flooding level. The flooding level can be called severity and is represented by S, which can be divided into 5 levels, such as 1, 2, 3, 4, and 5.

[0069] For example, based on the scenario, scale and type of power supply service object of the substation (room), the physical damage and power outage impact that may be caused to the substation (room) once it is flooded are analyzed, and the severity caused by the substation being flooded can be divided into 5 levels. According to the severity level obtained above, the risk level can be determined.

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

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

[0072] Optionally, the product of the inundation level and the flood level is determined as 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 is determined according to different flood risk level conditions satisfied by the risk value, wherein the flood risk level conditions can be obtained by pre-set flood risk level standards.

[0074] Optionally, Table 1 is a flood risk matrix table of the substation. As shown in Table 1, the risk value can be determined according to the possibility L and the severity S. For example, when the possibility L is 4 and the severity S is 3, the risk value at this time is 12; when the possibility L is 5 and the severity S is 5, the risk value at this time is 25; it should be noted that different risk values ​​can be determined according to different possibilities L and different severity S, as shown in Table 1, which are not 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, 12 falls into the risk value interval of 10 to 15. At this time, the corresponding risk level is III, and the corresponding risk description is a major risk, which indicates that the substation has a major risk of flooding. It should be noted that after obtaining the risk value, the risk value interval can be determined according to different risk values, and then the corresponding risk level and risk description can be determined, as shown in Table 2, which will not be listed here.

[0076] Table 1 Flood risk matrix of substation

[0077]

[0078] Table 2 Flood risk level standards for substations

[0079] Risk Level Ⅰ Ⅱ Ⅲ Ⅳ Risk value range 1～4 5～9 10～15 16～25 Risk Description General Risks Greater risk Significant risks Particularly important

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

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

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

[0083] For example, GIS tools are used to draw substation (room) flood range maps and substation risk level distribution maps 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, and the source information of the substation can be determined based on the location information and river distribution information obtained above. Then, the scene information and power supply service object type of the substation need to be obtained, and the source information obtained above is analyzed based on the location information and river distribution information to achieve the purpose of obtaining the analysis results and flood level of the substation. Finally, if the analysis result is that a flood has occurred in the substation, it is necessary to evaluate the flood risk of the substation based on the scene information, power supply service object type and flood level, so as to obtain the risk level of the substation. Considering that the source information of the substation is determined based on the obtained location information and river distribution information, and then the source information is analyzed based on the location information and river distribution information to obtain the analysis results and flood results of the substation. If the analysis result is that a flood has occurred in the substation, the flood risk of the substation can be evaluated based on the obtained scene information, power supply service object type and flood level, so as to achieve the purpose of obtaining the risk level of the substation, so as to solve the technical problem of being unable to reasonably evaluate the flood risk of the substation and achieve the technical effect of being able to reasonably evaluate the flood risk of the substation.

[0085] Example 2

[0086] The technical solution of the embodiment of the present invention is illustrated below in conjunction with preferred implementation modes.

[0087] In recent years, with climate change and rapid socio-economic development, natural disasters such as rainstorms and floods have occurred frequently, often causing substations (rooms) to be flooded and causing power outages. Rainstorms and floods not only cause substations (rooms) to shut down and equipment and facilities to be directly damaged, but more seriously, the shutdown of substations (rooms) causes power supply interruptions, which further spreads the flood disaster chain, causing wider and longer-term economic losses and social impacts.

[0088] Flood disasters in substations (rooms) have attracted great attention from departments at all levels. However, for a long time, power grid companies have not been able to fully understand the risks of flood disasters faced by substations (rooms). Moreover, due to the rapid changes in the surrounding environment, the risks of flood disasters faced by substations (rooms) are also changing rapidly. For example, originally low-risk points may become high-risk points, which leads to technical problems that make it impossible to reasonably assess the flood risks of substations.

[0089] Therefore, in order to solve the above problems, the present invention provides a flow chart of a method for assessing the flood risk of a substation (room) based on a water level hydrodynamic model and a risk matrix. The method can define the flood risk of a substation (room) as the product of the likelihood (Likelihood) of the substation being flooded and the severity (Severity) of the loss caused by the flood, that is, R=L×S. The likelihood and severity obtained above are quantified respectively to assess the flood risk level of the substation (room). Among them, the likelihood of flooding in the substation (room) is obtained by analyzing and calculating the water level hydrodynamic model based on the design of heavy rain or floods at different frequencies. The severity of the flood is quantified according to indicators such as the scale of the substation (room) and the power supply service object. Since the likelihood and severity of flooding in the substation are taken into account, the flood risk of the substation is assessed, and the purpose of obtaining the risk level of the substation is achieved, thereby solving the technical problem of being unable to reasonably assess the flood risk of the substation, and achieving the technical effect of being able to reasonably assess the flood risk of the substation.

[0090] Figure 2 is a flow chart of a method for assessing substation (room) flood risk based on a water level hydrodynamic model and a risk matrix according to an embodiment of the present invention, such as Figure 2 As shown, the flow chart mainly includes the following steps:

[0091] Step S201, analyzing the threat source of flooding in the substation (room).

[0092] In this embodiment, for each substation (room), according to the distribution of river systems and the location of the substation (room), combined with remote sensing images and topographic maps, the river channels that may pose a threat to it are specifically analyzed to determine the source of floods that may be encountered, such as mountain torrents or river overflows. For substations (rooms) located in urban built-up areas, it is also necessary to analyze whether the substations (rooms) may face the threat of heavy rain and waterlogging based on the surrounding environment of the substations (rooms) and local historical flood conditions.

[0093] Step S202, analyzing the possibility of flooding and submergence of the substation.

[0094] In this embodiment, the possibility level of flooding and submergence of the substation (room) is determined by factors such as the source of the flood threat faced by the substation (room) and its possibility, the location of the substation (room), and the specific scenario. If a certain magnitude of rainstorm flood occurs in the river basin where the substation (room) is located, and the flooding water level caused exceeds the elevation of the key point of the substation, the substation (room) is considered to be submerged, and the flood frequency that causes the substation (room) to be submerged is considered to be the frequency of the substation (room) being submerged. The main process of the above analysis process is as follows:

[0095] According to the source and type of flood in the substation, different frequency scenarios such as 10-year, 20-year, 50-year or 100-year return period are selected to design rainstorm or design flood, which can be recorded as f 1 / n (n=10, 20, 50, 100), where the smaller the n value, the greater the possibility of flooding.

[0096] According to the flood source and type of the substation, the appropriate hydrological dynamic simulation technology is used to construct a flood analysis model to calculate the flooding 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 Used to indicate a design rainstorm or design flood with a frequency of 1 / n, z 1 / n It is used to indicate the flooding water level of the substation, and G is used to indicate the functional relationship between the flooding water level of the substation and the rainfall or flood in the basin where the substation is located.

[0097] According to the substation scenario, analyze the key points of the substation (room) that may be flooded and cause flooding and their corresponding elevations (such as the elevations of inlets and outlets, ventilation openings, and lifting openings), so as to determine the elevation of the lowest point as the elevation z0 of the key point of the substation (room).

[0098] After obtaining the flooding water level and the lowest point elevation, a comparative analysis is conducted on the flooding water level of the substation (room) under different design rainstorms or floods. 1 / n The substation (room) is at its lowest point, z0, and the substation flooding depth is calculated using the following formula:

[0099]

[0100] From the above formula, we can see that if the flooding water level z 1 / n If the difference between the substation (room) and the lowest point elevation z0 is greater than 0, the substation flooding depth at this time is the difference between the flooding water level and the lowest point elevation; if the flooding water level z 1 / n If the difference between the elevation z0 of the lowest point of the substation (room) and that of the lowest point is less than 0, the substation's flooded water depth is 0 at this time.

[0101] Further, after obtaining the flooding depth, the maximum possibility level of causing the substation (room) to be flooded is determined according to the flooding depth of the substation. The above possibility level can be expressed by the following formula:

[0102]

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

[0104] Step S203, determining the severity level S of the substation (room) being flooded.

[0105] In this embodiment, based on the scenario, scale and type of power supply service object of the substation (room), the physical damage and power outage impact that may be caused to the substation (room) once it is flooded are analyzed, and the severity caused by the substation being flooded can be divided into five levels.

[0106] Step S204, determining the risk level according to the flood risk matrix.

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

[0108] Step S205, generating a risk level distribution map of the substation.

[0109] In this embodiment, a GIS tool is used to draw a substation (room) flood range map and a substation risk level distribution map 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, and the source information of the substation can be determined based on the location information and river distribution information obtained above. Then, the scene information and power supply service object type of the substation need to be obtained, and the source information obtained above is analyzed based on the location information and river distribution information to achieve the purpose of obtaining the analysis results and flood level of the substation. Finally, if the analysis result is that a flood has occurred in the substation, it is necessary to evaluate the flood risk of the substation based on the scene information, power supply service object type and flood level, so as to obtain the risk level of the substation. Considering that the source information of the substation is determined based on the obtained location information and river distribution information, and then the source information is analyzed based on the location information and river distribution information to obtain the analysis results and flood results of the substation. If the analysis result is that a flood has occurred in the substation, the flood risk of the substation can be evaluated based on the obtained scene information, power supply service object type and flood level, so as to achieve the purpose of obtaining the risk level of the substation, so as to solve the technical problem of being unable to reasonably evaluate the flood risk of the substation and achieve the technical effect of being able to reasonably evaluate the flood risk of the substation.

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

[0112] Table 3 Basic information of 12 substations (rooms) in Dashi River Basin

[0113]

[0114] Alternatively, the drainage area of ​​Dashi River is 2130km 2 , including the main stream of Dashi River, Cihe River, Dongsha River, Jiakuo River, Doudian River and other rivers. The mountainous section and several small rivers in front of the mountain are located in the center of the rainstorm in front of the mountain. The rainstorm and floods are fierce, with fast flow and rapid rise and fall. The river channel in the plain section is narrow and tortuous, with dense vegetation and poor water flow.

[0115] In this embodiment, the possibility of flooding in 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: selecting the water level hydrodynamic model and constructing the water level hydrodynamic model.

[0116] Optionally, the water level hydrodynamic model is selected: according to the characteristics of the river that threatens the substation (room), namely the Dashi River, a self-developed one-dimensional coupled water level hydrodynamic model is selected to construct a flood analysis model. The model includes two basic modules: a one-dimensional hydrodynamic model of the river and a two-dimensional hydrodynamic model of the surface. Among them, the one-dimensional hydrodynamic model of the river can be expressed 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 is used to represent the area of ​​the water-passing section, Q is used to represent the flow rate of the water-passing section, η is used to represent the elevation of the free surface of the water flow, n is used to represent the Manning coefficient, R=A / P is used to represent the hydraulic radius, and P is used to represent the wetted perimeter.

[0121] Furthermore, the two-dimensional surface hydrodynamic model can be expressed by the following formula:

[0122]

[0123] In the above formula, U is used to represent the conserved variable, F and G are used to represent the flux in the x and y directions respectively, and S is used to represent the source term, which is composed of the bottom slope source term S b and the resistance source term S f Composition. Its component forms can be:

[0124]

[0125] In the above formula, h is used for standard water depth. u and v are used to represent the flow velocity in the x and y directions respectively. z is used to represent the surface elevation. g is used to represent the acceleration due to gravity. f It is used to express the friction coefficient and can be calculated by 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 resistance effect of factors such as the roughness of the surface on water flow.

[0128] Optionally, the construction of a water level hydrodynamic model: the upper boundary of the model is the Manshui River hydrological station. In order to reduce the impact of the downstream boundary, the lower boundary is set at about 5 kilometers (km) downstream of a certain boundary. The total length of the simulated river channel is 29km, and 1928 river sections are arranged. Construct a two-dimensional surface model of the left and right banks of the Dashi River mainstream, with a construction area of ​​about 1280km 2 The grid is divided with a spacing of 5-20m. The one-dimensional model of the main stream of Dashi River and the two-dimensional surface models of the left and right banks are fully coupled along the river bank and embankment to achieve the construction range of the one-dimensional and two-dimensional coupling model.

[0129] In the embodiment of the present invention, according to the above analysis process, the flood analysis results can be obtained. The Manshuihe hydrological station in the upper reaches of Dashi River respectively adds the design flood process of 10 years, 20 years, 50 years and 100 years, and the seven tributaries including Dingjiawa River, Dongsha River, Zhoukoudian River, Mapaoquan River, Doudian River, Jiakuo River and Liugudaogou add the same frequency design flood process. The above model is used to calculate the flood characteristics such as the flooding situation and flooding depth of the substation (room) when the Dashi River has floods of different frequencies.

[0130] Optionally, FIG3(a) is a schematic diagram of a 10-year design flood process according to an embodiment of the present invention, FIG3(b) is a schematic diagram of a 20-year design flood process according to an embodiment of the present invention, FIG3(c) is a schematic diagram of a 50-year design flood process according to an embodiment of the present invention, and FIG3(d) is a schematic diagram of a 100-year design flood process according to an embodiment of the present invention. From the above four figures, it can be obtained that when a substation is flooded in different time periods (unit: hour h), the flow rate (unit: cubic meters per second m) corresponding to different rivers 3 / s), among which Dingjiawa River, Dongsha River, Zhoukoudian River, Mapaoquan River, Doudian River, Jiakuo River and Liugudaogou are all tributaries of the Dashi River.

[0131] Table 4 Flood analysis results of substations in the main stream of Dashi River

[0132]

[0133]

[0134] Optionally, Figure 4 is a schematic diagram of a 10-year design flood according to an embodiment of the present invention. Figure 4 As shown, it can be seen that the flooding of different substations in the Dashi River Basin after the design flood with a return period of once in 10 years. Figure 5 is a schematic diagram of a 20-year design flood according to an embodiment of the present invention. Figure 5 As shown, it can be seen that the flooding of different substations in the Dashi River Basin after the design flood with a return period of 20 years. Figure 6 is a schematic diagram of a 50-year design flood according to an embodiment of the present invention. Figure 6 As shown, it can be seen that the flooding of different substations in the Dashi River Basin after the design flood with a return period of 50 years. Figure 7 is a schematic diagram of a 100-year design flood according to an embodiment of the present invention. Figure 7 As shown in the figure, it can be seen that after the designed 100-year flood, the substations in the Dashi River Basin are flooded. Among them, the location of the flooded river is the hydrological station.

[0135] Optionally, Table 4 is a flood analysis result table of the substations in the main stream of Dashi River, which shows the flood inundation range and the flooded water depth of the substations (rooms) calculated according to the flood analysis model. It should be noted that the “ / ” in Table 4 indicates no flooding.

[0136] Table 5 Statistics of flood risk probability levels of substations in the main stream of Dashi River

[0137]

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

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

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

[0141] The severity of the risk after it occurs Qualitative description Quantization value Very 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 Very high Core functional area (emergency command center) 5

[0142] In this embodiment, by investigating and analyzing the historical flood disaster events of the substation (room), the index system of the flood consequence severity of the substation is constructed from the aspects of the substation (room) scale, the power supply service object, etc., by using the hierarchical analysis method and other methods, so as to quantify the severity of the consequence. Table 7 is a statistical table of the severity level of the substation (room). As shown in Table 7, when the sequence number is 1, the station room name is Zicaowu Station, then the station room scale in the corresponding severity index is 1, the service area level is 3, and the index is also 3, and the severity level is 3; when the sequence number is 2, the station room name is Yancun North Station, then the station room scale in the corresponding severity index is 2, the service area level is 2, the index is 4, and the severity level is 4. It should be noted that different sequence numbers correspond to different station room names, and different station room names correspond to different severity indicators and severity levels, that is, as shown in Table 7, which are not listed here.

[0143] Table 7 Statistics of severity levels of substations (rooms)

[0144]

[0145]

[0146] In this embodiment, the risk matrix method can be used to evaluate the flood risk level of the substation. The general process of risk matrix method for risk assessment is: risk identification, possibility assessment and severity assessment, drawing risk matrix, determining risk level, etc.

[0147] Optionally, risk identification, analysis and determination of possible risk events; analysis of the possibility and severity of risk events, and assigning scores from 1 to 5. Generally, this is determined through historical data, expert experience, numerical simulation, etc.; the risk value is calculated through the formula R = L*S, and then the corresponding risk value is found in the two-dimensional matrix diagram, and then the risk level of the risk event is determined according to the risk level standard.

[0148] Table 8 Statistics of flood risk levels of substations (rooms) in the Dashi River Basin

[0149]

[0150]

[0151] Optionally, according to Table 1 and Table 2 above, Table 8 can be obtained. Table 8 is a statistical result table of flood risk levels of substations (rooms) in the Dashi River Basin. As shown in Table 7, when the serial number is 1, the corresponding station room name is Zicaowu Station, then the corresponding possibility level is 1, the severity level is 3, the risk value is 3, and the risk level is general risk; when the serial number is 2, the corresponding station room name is Yancun North Station, then the corresponding possibility level is 1, the severity level is 4, the risk value is 4, and the risk level is general risk. It should be noted that after obtaining the risk values ​​of different stations here, the purpose of determining the risk level can be achieved according to Table 1 and Table 2, as shown in Table 8, which is not listed here.

[0152] Optionally, Figure 8 is a schematic diagram of 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 substation risk level distribution map.

[0153] It should be noted that the Dingjiawa River, Dongsha River, Zhoukoudian River, Mapaoquan River, Doudian River, Jiakuo River, Liugudaogou River and Dashi River main stream mentioned in the above embodiments, as well as multiple substations in the Dashi River Basin such as Zicaowu Station and Yancun North Station are only for illustration, and no specific limitation is imposed on the basin location, basin name, and the names of substations 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, and the source information of the substation can be determined based on the location information and river distribution information obtained above. Then, the scene information and power supply service object type of the substation need to be obtained, and the source information obtained above is analyzed based on the location information and river distribution information to achieve the purpose of obtaining the analysis results and flood level of the substation. Finally, if the analysis result is that a flood has occurred in the substation, it is necessary to evaluate the flood risk of the substation based on the scene information, power supply service object type and flood level, so as to obtain the risk level of the substation. Considering that the source information of the substation is determined based on the obtained location information and river distribution information, and then the source information is analyzed based on the location information and river distribution information to obtain the analysis results and flood results of the substation. If the analysis result is that a flood has occurred in the substation, the flood risk of the substation can be evaluated based on the obtained scene information, power supply service object type and flood level, so as to achieve the purpose of obtaining the risk level of the substation, so as to solve the technical problem of being unable to reasonably evaluate the flood risk of the substation and achieve the technical effect of being able to reasonably evaluate 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 the flood risk assessment device for a substation can be used to execute a flood risk assessment method for a substation in an embodiment.

[0156] Fig. 9 Schematic diagram of a flood risk assessment device for a substation according to an embodiment of the present invention. Fig. 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 determine 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 in the substation.

[0158] The analysis unit 902 is used to 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 result and flood level of the substation, wherein the flood level is used to characterize the possibility of the substation being flooded.

[0159] The evaluation unit 903 is used to respond to the analysis result that the substation is flooded, evaluate the flood risk of the substation based on the scene information, the type of power supply service object and the flood level, and obtain the risk level of the substation, wherein the risk level is used to characterize the degree of loss caused by the substation being flooded.

[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 floods in the substation. The analysis unit 902 may include: analyzing the source information based on the location information and the river distribution information to obtain the flood level of the substation, including: an analysis module, which is used to input 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 flooded water level data, wherein the flood analysis model is established through the substation's historical flood source information and historical flood frequency information; a first determination module, which is used to determine multiple key locations of the substation based on scene information, and multiple elevation data corresponding to the multiple key locations, respectively, wherein the key location is the location where water ingress occurs in the substation and causes flooding, and the elevation data is used to characterize the height of the key location relative to the ground; an acquisition module, which is used to acquire target elevation data from multiple elevation data; a second determination module, which is used to determine the flood level based on the flooded water level data and the target elevation data.

[0161] Optionally, the second determination module may include: a first determination 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 determination submodule, used to determine the flood grade based on the submerged water depth.

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

[0163] Optionally, the evaluation unit 903 may include: a third determination module, used to determine the inundation level of the substation in response to the analysis result that the substation is flooded, based on scene 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 a fourth determination module, used to determine the risk level based on the inundation level and the flood level.

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

[0165] Optionally, the device further comprises: a generating unit, configured to generate a flooding range map and a risk level distribution map of the substation using a target tool.

[0166] In this embodiment, the location information of the substation and the river distribution information of the substation are acquired by an acquisition unit, 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 source of risk of flooding in the substation; the scene information of the substation and the type of power supply service object of the substation are acquired by an analysis unit, and the source information is analyzed based on the location information and the river distribution information to obtain the analysis result and the flood level of the substation, wherein the flood level is used to characterize the possibility of flooding of the substation; in response to the analysis result that the substation is flooded, the evaluation unit evaluates 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 caused by flooding of the substation, so as to solve the technical problem that the flood risk of the substation cannot be reasonably evaluated, and achieve the technical effect that the flood risk of the substation can be reasonably evaluated.

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

[0168] According to an embodiment of the present invention, there is also provided an electronic device, comprising 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 one or more processors, the one or more processors implement the flood risk assessment method for the substation in the embodiment.

[0169] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0170] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0171] In the several embodiments provided by the present invention, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic, for example, the division of units can be a logical function division, and there can be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

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

[0173] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0174] If the integrated unit is implemented in the form of 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, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc., which can store program code.

[0175] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for assessing flood risk of a substation, characterized in that: include: Acquire location information of a substation and river distribution information of the substation, and determine 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 of the substation; Acquire 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 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 flooding has occurred in the substation, the flood risk of the substation is evaluated based on the scenario information, the power supply service object type 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 flooding of the substation.

2. The method according to claim 1, characterized in that: The source information includes: flood source information and flood frequency information, wherein the flood frequency information is used to characterize the frequency of floods occurring in the substation. Based on the location information and the river distribution information, the source information is analyzed to obtain the flood level of the substation, including: Based on the location information and the river distribution information, the flood source information and the flood frequency information are input into a flood analysis model for analysis to obtain the substation flooding water level data, wherein the flood analysis model is established through the historical flood source information and the historical flood frequency information of the substation; Based on the scene information, determine multiple key locations of the substation and multiple elevation data corresponding to the multiple key locations, wherein the key locations are locations where water ingress occurs in the substation and causes flooding, and the elevation data are used to characterize the height of the key locations relative to the ground; Acquire target elevation data from the plurality of elevation data; The flood level is determined based on the flood water level data and the target elevation data.

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

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

5. The method according to claim 1, characterized in that In response to the analysis result that flooding occurs in the substation, based on the scenario information, the type of the power supply service object and the flood level, the flood risk of the substation is evaluated to obtain the risk level of the substation, including: In response to the analysis result that the substation is flooded, based on the scenario information and the type of the power supply service object, determining the flooding level of the substation, wherein the flooding 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.

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

7. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: generating a flood range map and a risk level distribution map of the substation by using a target tool.

8. A flood risk assessment device for a substation, characterized in that: include: an acquisition unit, configured to acquire location information of a substation and river distribution information of the substation, and determine source information of the substation based on the location information and the river distribution information, wherein the source information is used to characterize a risk source of flooding of the substation; an analysis unit, configured to 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 the river distribution information to obtain an analysis result and a flood level of the substation, wherein the flood level is used to characterize the possibility of the substation being flooded; An evaluation unit is used for evaluating the flood risk of the substation in response to the analysis result that the substation is flooded, based on the scenario information, the power supply service object type 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.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed by a processor, the device where the storage medium is located is controlled to execute the method according to any one of claims 1 to 7.

10. An electronic device, characterized in that: The invention comprises 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 implement the method described in any one of claims 1 to 7.

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