Power grid planning methods and devices

Abstract

This application relates to a power grid planning method and apparatus; the method includes: when power equipment is detected to be connected to a power line, determining, based on the power grid structure information and corresponding power data within the planning area, and according to the status of a first line, a second line, the load status of a first substation, and the load status of a second substation, whether the first substation or the second substation will supply power to the power line; this method can adjust and optimize the power grid operation mode by comprehensively considering the power grid structure information and load operation, thereby improving the planning quality of the power grid.

Description

Technical Field

[0001] This application relates to the field of power technology, and in particular to a power grid planning method and apparatus. Background Technology

[0002] With the continuous growth of electricity demand and the increasing complexity of the power grid structure, higher requirements are placed on the operating efficiency and stability of the power grid. Due to regional economic development, electricity consumption is constantly increasing, requiring the construction or expansion of substations, lines, or power plants to support economic development and the growth of electricity consumption. However, the construction or expansion of substations, lines, or power plants will impact the original operation mode of the power grid, requiring power grid planning to reduce the impact on the power grid.

[0003] However, traditional power grid planning methods suffer from low planning quality. Summary of the Invention

[0004] Therefore, it is necessary to provide a power grid planning method and apparatus that can improve the planning quality in response to the above-mentioned technical problems.

[0005] Firstly, this application provides a power grid planning method, the method comprising:

[0006] Obtain power grid structure information within the planning area. This information includes the number of primary substations connected to power lines, as well as the line information between primary and secondary substations. The operating current of a primary substation is greater than that of a secondary substation.

[0007] When power equipment is detected to be connected to a power line, if the power line is determined to be connected to a first substation and a second substation based on the power grid structure information, then the first substation is selected to supply power to the power line; wherein, both the first substation and the second substation are first-level substations.

[0008] The status of the first line of the first substation is determined based on the line information, and the load status of the first substation is confirmed based on the power data corresponding to the first substation.

[0009] When the status of the first line meets the preset line conditions and the load status of the first substation is not full load, the power line is confirmed to be supplied by the first substation; otherwise, the second substation is selected to supply power to the power line. The preset line conditions include that the main transformers in the secondary substation below the primary substation are connected to the primary substation through different lines.

[0010] The status of the second line of the second substation is determined based on the line information, and the load status of the second substation is confirmed based on the corresponding power data of the second substation.

[0011] Based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation, it is determined whether the first substation or the second substation will supply power to the power line.

[0012] In one embodiment, determining the status of the first line of the first substation based on line information includes:

[0013] Based on the line information, obtain the connection status of each main transformer in the secondary substation located below the first substation with the first substation;

[0014] The status of the second line at the second substation is determined based on the line information, including:

[0015] Based on the line information, obtain the connection status of each main transformer in the secondary substation located below the second substation with the second substation.

[0016] In one embodiment, the power data includes total annual power supply and maximum load; determining the load status of the first substation based on the power data corresponding to the first substation includes:

[0017] Based on the total annual power supply and the maximum load of the first substation, the load rate of the first substation is calculated, and the load status of the first substation is determined according to the numerical range of the load rate of the first substation.

[0018] The load status of the second substation is determined based on the corresponding power data, including:

[0019] Based on the total annual power supply and the maximum load of the second substation, the load rate of the second substation is calculated, and the load status of the second substation is determined according to the numerical range of the load rate.

[0020] In one embodiment, determining whether the power line will be supplied with power by the first substation or the second substation, based on the first line status, the second line status, the load status of the first substation, and the load status of the second substation, includes:

[0021] If the first line does not meet the preset line conditions, the second line meets the preset line conditions, and the second substation is not fully loaded, then it is determined that the second substation will supply power to the power line.

[0022] If the status of the first line does not meet the preset line conditions, the status of the second line meets the preset line conditions, and the load status of the second substation is at full load, then it is determined that the second substation will supply power to the power line, and an early warning message will be output. The early warning message is used to instruct the user to expand the second substation or add a first-level substation.

[0023] In one embodiment, determining whether the power line will be supplied with power by the first substation or the second substation, based on the first line status, the second line status, the load status of the first substation, and the load status of the second substation, includes:

[0024] If the status of the first line does not meet the preset line conditions, and the status of the second line does not meet the preset line conditions, a prompt message will be output. The prompt message is used to instruct the user to determine whether the power line is supplied by the first substation or the second substation.

[0025] In one embodiment, determining whether the power line will be supplied with power by the first substation or the second substation, based on the first line status, the second line status, the load status of the first substation, and the load status of the second substation, includes:

[0026] If the status of the first line meets the preset line conditions, the load status of the first substation is at full load, and the status of the second line does not meet the preset line conditions, then it is determined that the first substation will supply power to the power line, and an early warning message will be output. The early warning message is used to instruct the user to expand the first substation or add a first-level substation.

[0027] In one embodiment, determining whether the power line will be supplied with power by the first substation or the second substation, based on the first line status, the second line status, the load status of the first substation, and the load status of the second substation, includes:

[0028] If the first line status meets the preset line conditions, the first substation's load status is full load, the second line status meets the preset line conditions, and the second substation's load status is not full load, then it is determined that the second substation will supply power to the power line.

[0029] If the status of the first line meets the preset line conditions, the load status of the first substation is at full load, the status of the second line meets the preset line conditions, and the load status of the second substation is at full load, then based on the load status of the first substation and the load status of the second substation, it is determined that the first substation or the second substation will supply power to the power line, and an early warning message will be output. The early warning message is used to instruct the user to expand the first substation or the second substation, or to instruct the user to add a first-level substation.

[0030] Secondly, this application also provides a power grid planning device, the device comprising:

[0031] The acquisition module is used to acquire power grid structure information within the planning area. The power grid structure information includes the number of primary substations connected to the power lines, as well as the line information between primary and secondary substations. Among them, the operating current of the primary substation is greater than that of the secondary substation.

[0032] The selection module is used to select the first substation to supply power to the power line when a power device is detected to be connected to the power line. If there is a first substation and a second substation connected to the power line, the first substation and the second substation are both first-level substations.

[0033] The determination module is used to determine the status of the first line of the first substation based on the line information, and to confirm the load status of the first substation based on the power data corresponding to the first substation.

[0034] The judgment module is used to confirm that the power line is supplied by the first substation when the first line status meets the preset line conditions and the load status of the first substation is not full load; otherwise, the second substation is selected to supply power to the power line. The preset line conditions include that the main transformers in the secondary substation below the primary substation are connected to the primary substation through different lines.

[0035] The determination module is also used to determine the status of the second line of the second substation based on the line information, and to confirm the load status of the second substation based on the power data corresponding to the second substation.

[0036] The judgment module is also used to determine whether the power line should be supplied by the first substation or the second substation based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation.

[0037] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the above-described method.

[0038] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described method.

[0039] The aforementioned power grid planning method and apparatus, by acquiring power grid structure information within the planning area, when power equipment is detected connecting to a power line, if the power grid structure information determines that a first substation and a second substation are connected to the power line, then the first substation is selected to supply power to the power line. Based on the line information and corresponding power data, the load status of the first substation and the first line status are determined. When the first line status meets preset line conditions and the load status of the first substation is not at full load, it is confirmed that the power line is supplied by the first substation; otherwise, the second substation is reselected to supply power to the power line, and the load status of the second substation and the second line status are determined based on the line information and corresponding power data. Based on the first line status, the second line status, the load status of the first substation, and the load status of the second substation, it is determined whether the first substation or the second substation will supply power to the power line. This application, by comprehensively considering the power grid structure information and load operation, realizes the adjustment and optimization of the power grid operation mode, thereby improving the planning quality of the power grid. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a flowchart illustrating a power grid planning method in one embodiment;

[0042] Figure 2 This is a flowchart illustrating the power grid planning method in another embodiment;

[0043] Figure 3 Here is a structural block diagram of a power grid planning device in one embodiment;

[0044] Figure 4 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0045] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. It is understood that the terms “first,” “second,” etc., as used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0047] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0048] Currently, the construction of new substations, lines, or power sources can impact the existing operation of the power grid. Therefore, after connecting new substations, lines, or power sources, it is necessary to adjust the power grid operation to the most reasonable mode. This requires power grid planning to reduce the impact of connecting new power equipment. However, traditional power grid planning methods suffer from low planning quality. The power equipment can be devices used to transform and transmit electricity. In this embodiment, the main power equipment is used as an example.

[0049] The power grid planning method provided in this application adjusts the primary substation supplying power to the power line based on the power grid structure information and corresponding power data within the planning area when power equipment is detected to be connected to the power line, thereby ensuring the safety and reliability of power supply. In other words, by comprehensively considering the power grid structure information and load operation, the method adjusts and optimizes the power grid operation mode, thus improving the planning quality of the power grid.

[0050] In one exemplary embodiment, such as Figure 1 As shown, a power grid planning method is provided. Taking the application of this method to computer equipment as an example, the method includes:

[0051] S102, Obtain the power grid structure information within the planning area. The power grid structure information includes the number of primary substations connected to the power lines, as well as the line information between primary and secondary substations; wherein, the operating current corresponding to the primary substation is greater than the operating current corresponding to the secondary substation.

[0052] The planning area can be set according to the actual situation, and is not limited in this embodiment.

[0053] Specifically, the computer equipment can acquire power grid data within the planning area. The power grid data includes power grid structure information and power data (load operation data) corresponding to substations of different voltage levels. Taking substations of different voltage levels, including primary substations and secondary substations, as an example, the line information can include the connection status of lines and busbars between substations of different voltage levels, which is not limited in this embodiment.

[0054] It should be noted that, in this embodiment of the application, a 220kV substation is used as the primary substation, a 110kV substation is used as the secondary substation, and a 110kV power line is used as the example. The 220kV substation is connected to the 110kV substation via a 110kV line.

[0055] For example, computer equipment can collect various types of data from the power grid in real time (power grid data), including structural data of the current grid structure (power grid structure information), load operation data, etc.; and clean, verify and standardize the collected data to ensure the accuracy and reliability of the data.

[0056] S104 When power equipment is detected to be connected to a power line, if it is determined from the power grid structure information that a first substation and a second substation are connected to the power line, then the first substation is selected to supply power to the power line; wherein, both the first substation and the second substation are first-level substations.

[0057] Specifically, when the computer equipment detects that a new main transformer (power equipment) has been connected to the power line, it determines the upstream 220kV substation of the power line based on the information of the connected line. If the power line is connected to two 220kV substations (the first substation and the second substation), the historical operation mode is followed, and the first substation is selected to supply power to the power line. That is, when the power equipment is not connected to the power line, the power line is supplied by the first substation.

[0058] For example, if the power line is connected to only one 220kV substation, then the newly connected power equipment will operate on the power line, that is, the 220kV substation will supply power to the power line.

[0059] S106, determine the status of the first line of the first substation based on the line information, and confirm the load status of the first substation based on the power data corresponding to the first substation.

[0060] The power data may include the total annual power supply and the maximum load.

[0061] Specifically, the computer equipment can determine the status of the first line of the first substation based on the line information, and obtain the load rate of the first substation based on the total power supply and maximum load corresponding to the first substation. The computer equipment can then determine the load status of the first substation based on the load rate.

[0062] S108, when the status of the first line meets the preset line conditions and the load status of the first substation is not full load, it is confirmed that the power line is supplied by the first substation; otherwise, the second substation is selected to supply power to the power line. The preset line conditions include that the main transformers in the secondary substation below the primary substation are connected to the primary substation through different lines.

[0063] Specifically, when the computer equipment determines that the main transformers in the secondary substation below the first substation are connected to the first substation through different lines (the status of the first line meets the preset line conditions), and the load status of the first substation is not full load (meeting the N-1 condition), it is confirmed that the power line is supplied by the first substation. Otherwise, the operation mode of the power line is adjusted to the second substation, that is, the second substation is reselected to supply power to the power line, so as to ensure the reliability and safety of power supply and improve the planning quality.

[0064] It should be noted that when the load rate is greater than 100%, it indicates an overload state and is set to not meet the N-1 condition; if it is less than 100%, it is set to meet the N-1 condition.

[0065] S110, determine the status of the second line of the second substation based on the line information, and confirm the load status of the second substation based on the corresponding power data of the second substation.

[0066] Specifically, the computer equipment can determine the status of the second line of the second substation based on the line information, and obtain the load rate of the second substation based on the total power supply and maximum load corresponding to the second substation, thereby confirming the load status of the second substation. The method of obtaining the load rate of the second substation is the same as the method of obtaining the load rate of the first substation, and is not limited in this embodiment.

[0067] S112, based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation, determine whether the first substation or the second substation will supply power to the power line.

[0068] Specifically, the computer equipment can comprehensively consider the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation. That is, by comprehensively considering the respective line status (first line status, second line status) and load status of the first and second substations, it can ensure the reliability of power supply to substations and users at various voltage levels and meet the needs of different loads.

[0069] In the aforementioned power grid planning method, by acquiring power grid structure information within the planning area, when power equipment is detected connecting to a power line, if the power grid structure information determines that a first substation and a second substation are connected to the power line, then the first substation is selected to supply power to the power line. Based on the line information and corresponding power data, the load status of the first substation and the status of the first line are determined. If the status of the first line meets the preset line conditions and the load status of the first substation is not at full load, it is confirmed that the power line is supplied by the first substation. Otherwise, the second substation is selected to supply power to the power line, and the load status of the second substation and the status of the second line are determined based on the line information and corresponding power data. Based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation, it is determined whether the first or second substation will supply power to the power line. By comprehensively considering the power grid structure information and load operation, the operation mode of the power line is reasonably adjusted to reduce the probability of power grid risk problems, which helps to maintain voltage, frequency, and power angle stability, improve the overall stability of the power grid system, and improve the planning quality of the power grid.

[0070] In one embodiment, determining the status of the first line of the first substation based on line information includes:

[0071] Based on the line information, obtain the connection status of each main transformer in the secondary substation located below the first substation with the first substation;

[0072] The status of the second line at the second substation is determined based on the line information, including:

[0073] Based on the line information, obtain the connection status of each main transformer in the secondary substation located below the second substation with the second substation.

[0074] Specifically, the line information includes the connection status of lines and busbars between the primary substation and the secondary substation. The computer equipment can use the line information to determine whether the connection of the power equipment results in the main transformers in the secondary substation below the primary substation operating on the same busbar. That is, it can obtain the connection status of each main transformer in the secondary substation below the primary substation and the primary substation with the primary substation, as well as the connection status of each main transformer in the secondary substation below the primary substation and the secondary substation with the secondary substation.

[0075] In this embodiment, by obtaining the connection status of each main transformer in the secondary substation located below the first substation and the connection status of each main transformer in the secondary substation located below the second substation and the second substation based on the line information, it is convenient to adjust the operation mode of the power line in the future and improve the planning quality.

[0076] In one embodiment, the power data includes total annual power supply and maximum load; determining the load status of the first substation based on the power data corresponding to the first substation includes:

[0077] Based on the total annual power supply and the maximum load of the first substation, the load rate of the first substation is calculated, and the load status of the first substation is determined according to the numerical range of the load rate of the first substation.

[0078] The load status of the second substation is determined based on the corresponding power data, including:

[0079] Based on the total annual power supply and the maximum load of the second substation, the load rate of the second substation is calculated, and the load status of the second substation is determined according to the numerical range of the load rate.

[0080] Specifically, the computer equipment can obtain the load rate P of the first substation based on the total power supply W and the maximum load H corresponding to the first substation, as shown in equations (1) and (2) below:

[0081] A = W / 8760; (1)

[0082] P = (A / H) * 100%; (2)

[0083] Where A represents the average load.

[0084] It should be noted that a load rate of less than 100% indicates that the substation is not fully loaded, while a load rate of 100% or greater indicates that the substation is fully loaded. The method for obtaining the load status of the second substation is the same as the method for obtaining the load status of the first substation, and will not be repeated in this embodiment.

[0085] In this embodiment, the load rate of the primary substation is calculated based on the total annual power supply and the maximum load of the primary substation (first substation and second substation). The load status of the primary substation is determined according to the numerical range of the load rate, so as to quickly identify the primary substations in the risk operation range (primary substations in full load state), thereby ensuring the operation of the power grid and the safety of users' electricity consumption, and improving the planning quality of the power grid.

[0086] In one embodiment, such as Figure 2 As shown, based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation, it is determined whether the first substation or the second substation will supply power to the power line, including:

[0087] If the first line does not meet the preset line conditions, the second line meets the preset line conditions, and the second substation is not fully loaded, then it is determined that the second substation will supply power to the power line.

[0088] If the status of the first line does not meet the preset line conditions, the status of the second line meets the preset line conditions, and the load status of the second substation is at full load, then it is determined that the second substation will supply power to the power line, and an early warning message will be output. The early warning message is used to instruct the user to expand the second substation or add a first-level substation.

[0089] Specifically, such as Figure 2 As shown, when the power line is supplied by the first substation, the connected power equipment will cause all the main transformers in the secondary substation below the first substation to be connected to the first substation through the same busbar (the state of the first line does not meet the preset line conditions). However, when the power line is supplied by the second substation, the connected power equipment will not cause all the main transformers in the secondary substation below the second substation to be connected to the second substation through the same busbar (the state of the second line meets the preset line conditions). At this time, the load state of the second substation is not full load (satisfying the N-1 condition). Therefore, it is determined that the power line is supplied by the second substation.

[0090] like Figure 2 As shown, when the power line is supplied by the first substation, the connected power equipment will cause all the main transformers in the secondary substation below the first substation to be connected to the first substation through the same busbar (the first line status does not meet the preset line conditions). However, when the power line is supplied by the second substation, the connected power equipment will not cause all the main transformers in the secondary substation below the second substation to be connected to the second substation through the same busbar (the second line status meets the preset line conditions). At this time, the load status of the second substation is full load (not meeting the N-1 condition). Therefore, it is determined that the power line is supplied by the second substation, and a warning message is output. The warning message is used to remind the user that the second substation is in a critical state and needs to be expanded or a new primary substation needs to be added.

[0091] It should be noted that, Figure 2 Substation A is the first substation, and substation B is the second substation.

[0092] In this embodiment, the power supply to the power line is determined by the first substation or the second substation based on the first line status, the second line status, the load status of the first substation, and the load status of the second substation. That is, by comprehensively considering the structural information of the power grid and the load operation, the operation mode of the power line is reasonably adjusted to reduce the probability of power grid risk problems, which helps to maintain the stability of voltage, frequency and power angle, improve the overall stability of the power grid system, and improve the planning quality of the power grid.

[0093] In one embodiment, such as Figure 2 As shown, based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation, it is determined whether the first substation or the second substation will supply power to the power line, including:

[0094] If the status of the first line does not meet the preset line conditions, and the status of the second line does not meet the preset line conditions, a prompt message will be output. The prompt message is used to instruct the user to determine whether the power line is supplied by the first substation or the second substation.

[0095] Specifically, such as Figure 2 As shown, when the power line is supplied by the first substation, the connected power equipment will cause all the main transformers in the secondary substation below the first substation to be connected to the first substation through the same busbar (the status of the first line does not meet the preset line conditions). When the power line is supplied by the second substation, the connected power equipment will cause all the main transformers in the secondary substation below the second substation to be connected to the second substation through the same busbar (the status of the second line does not meet the preset line conditions). In this case, a prompt message will be output to instruct the user to determine whether the power line is supplied by the first substation or the second substation, that is, to manually arrange the operation mode of the power line.

[0096] In one embodiment, such as Figure 2 As shown, based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation, it is determined whether the first substation or the second substation will supply power to the power line, including:

[0097] If the status of the first line meets the preset line conditions, the load status of the first substation is at full load, and the status of the second line does not meet the preset line conditions, then it is determined that the first substation will supply power to the power line, and an early warning message will be output. The early warning message is used to instruct the user to expand the first substation or add a first-level substation.

[0098] Specifically, such as Figure 2As shown, when the power line is supplied by the first substation, the connected power equipment will not cause the main transformers in the secondary substation below the first substation to be connected to the first substation through the same busbar (the first line status meets the preset line conditions), and the load status of the first substation is full load (not meeting the N-1 condition). When the power line is supplied by the second substation, the connected power equipment will cause the main transformers in the secondary substation below the second substation to be connected to the second substation through the same busbar (the second line status does not meet the preset line conditions). Therefore, it is determined that the power line is supplied by the first substation, and an early warning message is output. The early warning message is used to remind the user that the second substation is in a critical state and needs to be expanded or a new first-level substation needs to be added.

[0099] In one embodiment, such as Figure 2 As shown, based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation, it is determined whether the first substation or the second substation will supply power to the power line, including:

[0100] If the first line status meets the preset line conditions, the first substation's load status is full load, the second line status meets the preset line conditions, and the second substation's load status is not full load, then it is determined that the second substation will supply power to the power line.

[0101] If the status of the first line meets the preset line conditions, the load status of the first substation is at full load, the status of the second line meets the preset line conditions, and the load status of the second substation is at full load, then based on the load status of the first substation and the load status of the second substation, it is determined that the first substation or the second substation will supply power to the power line, and an early warning message will be output. The early warning message is used to instruct the user to expand the first substation or the second substation, or to instruct the user to add a first-level substation.

[0102] Specifically, such as Figure 2 As shown, when the power line is supplied by the first substation, the connected power equipment will not cause the main transformers in the secondary substation below the first substation to be connected to the first substation through the same busbar (the first line status meets the preset line conditions), and the load status of the first substation is full load (not meeting the N-1 condition). When the power line is supplied by the second substation, the connected power equipment will not cause the main transformers in the secondary substation below the second substation to be connected to the second substation through the same busbar (the second line status meets the preset line conditions), and the load status of the second substation is not full load (meeting the N-1 condition). Therefore, it is determined that the power line is supplied by the second substation.

[0103] like Figure 2As shown, when the power line is supplied by the first substation, the connected power equipment will not cause the main transformers in the secondary substation below the first substation to be connected to the first substation through the same busbar (the first line status meets the preset line conditions), and the load status of the first substation is full load (not meeting the N-1 condition). When the power line is supplied by the second substation, the connected power equipment will not cause the main transformers in the secondary substation below the second substation to be connected to the second substation through the same busbar (the second line status meets the preset line conditions), and the load status of the second substation is full load (not meeting the N-1 condition). Then, the load rate of the first substation and the load rate of the second substation are compared, and the power line is operated in the substation with the relatively smaller load rate. That is, the power line is supplied by the substation with the relatively smaller load rate, and a warning message is output. The warning message is used to instruct the user to expand the first substation or the second substation, or to instruct the user to add a first-level substation.

[0104] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0105] Based on the same inventive concept, this application also provides a power grid planning device for implementing the power grid planning method described above. The solution provided by this device is similar to the implementation scheme described in the above method; therefore, the specific limitations in one or more power grid planning device embodiments provided below can be found in the limitations of the power grid planning method described above, and will not be repeated here.

[0106] In one exemplary embodiment, such as Figure 3 As shown, a power grid planning device 300 is provided, the device 300 including:

[0107] The acquisition module 301 is used to acquire power grid structure information within the planning area. The power grid structure information includes the number of primary substations connected to the power lines, as well as the line information between primary and secondary substations. The operating current of the primary substation is greater than that of the secondary substation.

[0108] The selection module 302 is used to select the first substation to supply power to the power line when the power equipment is detected to be connected to the power line, if the power line is connected to a first substation and a second substation; wherein, both the first substation and the second substation are first-level substations.

[0109] The determination module 303 is used to determine the status of the first line of the first substation based on the line information, and to confirm the load status of the first substation based on the power data corresponding to the first substation.

[0110] The judgment module 304 is used to confirm that the power line is supplied by the first substation when the first line status meets the preset line conditions and the load status of the first substation is not full load; otherwise, the second substation is selected to supply power to the power line. The preset line conditions include that each main transformer in the secondary substation below the primary substation is connected to the primary substation through different lines.

[0111] The determination module 303 is also used to determine the status of the second line of the second substation based on the line information, and to confirm the load status of the second substation based on the power data corresponding to the second substation.

[0112] The judgment module 304 is also used to determine whether the power line is supplied by the first substation or the second substation based on the first line status, the second line status, the load status of the first substation, and the load status of the second substation.

[0113] In one embodiment, the determining module 303 is further configured to obtain the connection status of each main transformer in the secondary substation located below the first substation and the first substation based on the line information.

[0114] The determination module 303 is also used to obtain the connection status of each main transformer in the secondary substation located below the second substation and the second substation based on the line information.

[0115] In one embodiment, the power data includes the total annual power supply and the maximum load; the determining module 303 is further configured to calculate the load rate of the first substation based on the total annual power supply and the maximum load of the first substation, and determine the load status of the first substation according to the numerical range of the load rate of the first substation.

[0116] The determination module 303 is also used to calculate the load rate of the second substation based on the total annual power supply corresponding to the second substation and the maximum load corresponding to the second substation, and to determine the load status of the second substation according to the numerical range of the load rate of the second substation.

[0117] In one embodiment, the determination module 304 is further configured to determine that the power line is supplied by the second substation if the first line status does not meet the preset line conditions, the second line status meets the preset line conditions, and the load status of the second substation is not full load.

[0118] If the status of the first line does not meet the preset line conditions, the status of the second line meets the preset line conditions, and the load status of the second substation is at full load, then it is determined that the second substation will supply power to the power line, and an early warning message will be output. The early warning message is used to instruct the user to expand the second substation or add a first-level substation.

[0119] In one embodiment, the judgment module 304 is further configured to output a prompt message if the first line status does not meet the preset line conditions and the second line status does not meet the preset line conditions. The prompt message is used to instruct the user to determine whether the power line is supplied by the first substation or the second substation.

[0120] In one embodiment, the judgment module 304 is further configured to determine that the first substation will supply power to the power line if the first line status meets the preset line conditions, the load status of the first substation is full load, and the second line status does not meet the preset line conditions, and output warning information. The warning information is used to instruct the user to expand the first substation or add a first-level substation.

[0121] In one embodiment, the determination module 304 is further configured to determine that the power line is supplied by the second substation if the first line status meets the preset line conditions, the load status of the first substation is full load, the second line status meets the preset line conditions, and the load status of the second substation is not full load.

[0122] If the status of the first line meets the preset line conditions, the load status of the first substation is at full load, the status of the second line meets the preset line conditions, and the load status of the second substation is at full load, then based on the load status of the first substation and the load status of the second substation, it is determined that the first substation or the second substation will supply power to the power line, and an early warning message will be output. The early warning message is used to instruct the user to expand the first substation or the second substation, or to instruct the user to add a first-level substation.

[0123] Each module in the aforementioned power grid planning device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the corresponding operations of each module.

[0124] In one exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 4 As shown, the computer device includes a processor, memory, input / output interfaces, a communication interface, a display unit, and an input device. The processor, memory, and input / output interfaces are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interfaces are used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements a power grid planning method. The display unit is used to form a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0125] Those skilled in the art will understand that Figure 4 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0126] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the above-described power grid planning method.

[0127] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the above-described power grid planning method.

[0128] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the above-described power grid planning method.

[0129] It should be noted that the data involved in this application (including but not limited to data used for analysis, data stored, data displayed, etc.) are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0130] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0131] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0132] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A power grid planning method, characterized in that, The method includes: Obtain power grid structure information within the planning area. The power grid structure information includes the number of primary substations connected to the power lines, as well as the line information between the primary and secondary substations. The operating current of the primary substation is greater than the operating current of the secondary substation. When power equipment is detected to be connected to the power line, if it is determined from the power grid structure information that a first substation and a second substation are connected to the power line, then the first substation is selected to supply power to the power line; wherein, both the first substation and the second substation are primary substations. The first line status of the first substation is determined based on the line information, and the load status of the first substation is confirmed based on the power data corresponding to the first substation. When the first line status meets the preset line conditions and the load status of the first substation is not full load, it is confirmed that the power line is powered by the first substation; otherwise, the second substation is selected to power the power line. The preset line conditions include that each main transformer in the second substation below the first substation is connected to the first substation through different lines. The second line status of the second substation is determined based on the line information, and the load status of the second substation is confirmed based on the power data corresponding to the second substation. Based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation, it is determined that the power line will be supplied by either the first substation or the second substation.

2. The method according to claim 1, characterized in that, Determining the status of the first line of the first substation based on the line information includes: Based on the line information, obtain the connection status of each main transformer in the secondary substation located below the first substation with the first substation; Determining the status of the second line of the second substation based on the line information includes: Based on the line information, the connection status of each main transformer in the secondary substation located below the second substation and the second substation is obtained.

3. The method according to claim 1, characterized in that, The power data includes the total annual power supply and maximum load; confirming the load status of the first substation based on the power data corresponding to the first substation includes: Based on the total annual power supply and the maximum load of the first substation, the load rate of the first substation is calculated, and the load status of the first substation is determined according to the numerical range of the load rate of the first substation. The step of confirming the load status of the second substation based on the power data corresponding to the second substation includes: Based on the total annual power supply and the maximum load of the second substation, the load rate of the second substation is calculated, and the load status of the second substation is determined according to the numerical range of the load rate of the second substation.

4. The method according to claim 1, characterized in that, The step of determining whether the power line should be supplied with power by the first substation or the second substation based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation includes: If the first line status does not meet the preset line conditions, the second line status meets the preset line conditions, and the load status of the second substation is not full load, then it is determined that the second substation will supply power to the power line. If the first line status does not meet the preset line conditions, the second line status meets the preset line conditions, and the second substation is in a full-load state, then it is determined that the second substation will supply power to the power line, and an early warning message is output. The early warning message is used to instruct the user to expand the second substation or add the first-level substation.

5. The method according to claim 1, characterized in that, The step of determining whether the power line should be supplied with power by the first substation or the second substation based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation includes: If the status of the first line does not meet the preset line conditions, and the status of the second line does not meet the preset line conditions, a prompt message is output. The prompt message is used to instruct the user to determine whether the power line is powered by the first substation or the second substation.

6. The method according to claim 1, characterized in that, The step of determining whether the power line should be supplied with power by the first substation or the second substation based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation includes: If the first line status meets the preset line conditions, the first substation is in full load condition, and the second line status does not meet the preset line conditions, then it is determined that the first substation will supply power to the power line, and an early warning message will be output. The early warning message is used to instruct the user to expand the first substation or add a new first-level substation.

7. The method according to claim 1, characterized in that, The step of determining whether the power line should be supplied with power by the first substation or the second substation based on the status of the first line, the status of the second line, the load status of the first substation, and the load status of the second substation includes: If the first line status meets the preset line conditions, the first substation's load status is full load, the second line status meets the preset line conditions, and the second substation's load status is not full load, then it is determined that the second substation will supply power to the power line. If the first line status meets the preset line conditions, the first substation's load status is full load, the second line status meets the preset line conditions, and the second substation's load status is full load, then based on the first substation's load status and the second substation's load status, it is determined that the first substation or the second substation will supply power to the power line, and an early warning message is output. The early warning message is used to instruct the user to expand the first substation or the second substation, or to instruct the user to add the first-level substation.

8. A power grid planning device, characterized in that, The device includes: The acquisition module is used to acquire power grid structure information within the planning area. The power grid structure information includes the number of primary substations connected to the power lines, as well as the line information between the primary and secondary substations. The operating current of the primary substation is greater than the operating current of the secondary substation. The selection module is used to select the first substation to supply power to the power line when a power device is detected to be connected to the power line, if the power line is connected to a first substation and a second substation; wherein the first substation and the second substation are both the first-level substations. The determination module is used to determine the first line status of the first substation based on the line information, and to confirm the load status of the first substation based on the power data corresponding to the first substation. The judgment module is used to confirm that the power line is powered by the first substation when the first line status meets the preset line conditions and the load status of the first substation is not full load; otherwise, the second substation is selected to power the power line again. The preset line conditions include that each main transformer in the second substation below the first substation is connected to the first substation through different lines. The determining module is also used to determine the second line status of the second substation based on the line information, and to confirm the load status of the second substation based on the power data corresponding to the second substation. The judgment module is further configured to determine, based on the first line status, the second line status, the load status of the first substation, and the load status of the second substation, whether the power line is supplied by the first substation or the second substation.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 7.

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