Method and apparatus for power facility planning and design

Abstract

The application relates to a power facility planning and designing method and device; the method comprises the following steps: predicting the power demand of the selected power facility in a preset area according to historical operation data, determining the load information corresponding to the selected power facility, and dividing the selected power facility into a first power facility and a second power facility based on the load information; determining the center point position and the planning area according to the position of the second power facility; when the first power facility exists in the planning area, connecting the first power facility in the planning area to any second power facility in the planning area, and reacquiring the load state of the first power facility after being connected; determining whether to maintain the current connection state or take the center point position as a new power facility site according to the load state of the first power facility after being connected; and when the first power facility does not exist in the planning area, taking the center point position as a new power facility site; the method can improve the planning efficiency and planning accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power, and particularly relates to a power facility planning and designing method and device. BACKGROUND

[0002] In an electric power system, the site selection and layout of power facilities are of great significance to improving power supply reliability, reducing operation cost and optimizing resource allocation; however, the traditional power facility planning and designing method often relies on the experience judgment of business personnel and the statistical analysis of relatively simple electric power data, and it is difficult to comprehensively consider the influence of various factors, and there is a problem of low planning efficiency and planning accuracy. SUMMARY

[0003] Therefore, it is necessary to provide a power facility planning and designing method and device capable of improving planning efficiency and planning accuracy in view of the above technical problems.

[0004] In a first aspect, the present application provides a power facility planning and designing method, which comprises the following steps.

[0005] Obtaining historical operation data of candidate power facilities in a preset area, predicting the power demand of the candidate power facilities according to the historical operation data, and obtaining a power demand prediction value of the candidate power facilities; wherein the load state of the candidate power facilities is a non-full load state;

[0006] According to the maximum load and the power demand prediction value of the candidate power facilities, determining the load information corresponding to the candidate power facilities, and dividing the candidate power facilities into first power facilities and second power facilities based on the load information, wherein the load state of the first power facilities is a light load state, and the load state of the second power facilities is an overload state;

[0007] Calculating the center point position corresponding to the position of each second power facility, and determining a planning area based on the center point position, wherein the planning area is a circular area with the center point position as the center and a preset distance as the radius;

[0008] If there is a first power facility in the planning area, connecting the first power facility in the planning area to any second power facility in the planning area, and re-obtaining the load state of the first power facility after connection; when the load state of the first power facility after connection is a light load state or a balanced state, maintaining the current connection state; when the load state of the first power facility after connection is an overload state, disconnecting the connection between the first power facility and the second power facility, and taking the center point position as a new power facility site selection;

[0009] If there is no first power facility in the planning area, taking the center point position as a new power facility site selection.

[0010] In one of the embodiments, before the historical operation data of the candidate power facilities in the preset area is acquired, the method further comprises:

[0011] acquiring line information between the primary power facilities and the secondary power facilities deployed in the preset area, wherein the operation current corresponding to the primary power facilities is greater than the operation current corresponding to the secondary power facilities;

[0012] determining the power data corresponding to the secondary power facilities based on the line information, and selecting the candidate power facilities from the secondary power facilities according to the power data.

[0013] In one of the embodiments, the secondary power facilities comprise a plurality of main transformers, and the power data comprises annual total power supply and maximum load value; the candidate power facilities are selected from the secondary power facilities according to the power data, comprising:

[0014] determining the load state of the secondary power facilities according to the annual total power supply and the maximum load value, and confirming the secondary power facilities as the candidate power facilities if the load state of the secondary power facilities is a non-full load state.

[0015] In one of the embodiments, the power demand of the candidate power facilities is predicted according to the historical operation data, and a power demand prediction value of the candidate power facilities is acquired, comprising:

[0016] acquiring an expected growth rate and an average growth rate of the national economy;

[0017] determining a power demand growth rate according to the historical operation data, and obtaining a power elasticity coefficient based on the average growth rate and the power demand growth rate;

[0018] predicting the power demand of the candidate power facilities according to the expected growth rate, the power elasticity coefficient and the historical operation data, and acquiring the power demand prediction value.

[0019] In one of the embodiments, the load state of the first power facility after the access is re-acquired, comprising:

[0020] obtaining the power demand corresponding to the first power facility after the access according to the power demand corresponding to the first power facility before the access and the power demand corresponding to the second power facility to be accessed;

[0021] determining the load state of the first power facility after the access based on the power demand corresponding to the first power facility after the access and the maximum load of the first power facility.

[0022] In one of the embodiments, the method further comprises:

[0023] when it is confirmed that the second power facility in the planning area is allowed to be expanded according to the map information of the planning area, wherein the map information comprises population density information and power facility location information.

[0024] If the load state of the first power facility after being accessed is an overload state, or the first power facility does not exist in the planning area, the load state of the second power facility after being expanded is obtained;

[0025] When the load state of the second power facility after being expanded is a light load state or a balanced state, it is confirmed that the second power facility is expanded; when the load state of the second power facility after being expanded is an overload state, it is confirmed that the second power facility is not expanded, and the center point position is selected as a new power facility site.

[0026] In one of the embodiments, the method further comprises:

[0027] When it is confirmed that the preset site exists in the planning area;

[0028] If the load state of the first power facility after being accessed is an overload state, the first power facility does not exist in the planning area, the load state of the second power facility after being expanded is an overload state, or the second power facility is not allowed to be expanded, the preset site is selected as a new power facility site.

[0029] In a second aspect, the application further provides a power facility planning and design device, the device comprising:

[0030] The prediction module is configured to obtain historical operation data of the candidate power facility in the preset area, predict the power demand of the candidate power facility according to the historical operation data, and obtain a power demand prediction value of the candidate power facility; wherein the load state of the candidate power facility is a non-full load state;

[0031] The division module is configured to determine the load information corresponding to the candidate power facility according to the maximum load and the power demand prediction value of the candidate power facility, and divide each candidate power facility into a first power facility and a second power facility based on the load information, wherein the load state of the first power facility is a light load state, and the load state of the second power facility is an overload state;

[0032] The area determination module is configured to calculate the center point position corresponding to the position of each second power facility, and determine a planning area based on the center point position, wherein the planning area is a circular area with the center point position as the center and a preset distance as the radius;

[0033] The planning module is further configured to, if the first power facility does not exist in the planning area, select the center point position as a new power facility site.

[0034] The planning module is further configured to, if the first power facility does not exist in the planning area, select the center point position as a new power facility site.

[0035] In a third aspect, the present application further provides a computer device, comprising a memory and a processor, the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0036] In a fourth aspect, the present application further provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the steps of the above method.

[0037] The power facility planning and design method and device, by obtaining the historical operation data of the candidate power facilities in the preset area, predicting the power demand of the candidate power facilities, determining the load information corresponding to the candidate power facilities according to the predicted power demand prediction value and the maximum load of the candidate power facilities, and dividing the candidate power facilities into the first power facility and the second power facility based on the load information, determining the center point position and the planning area according to the position of the second power facility, connecting the first power facility in the planning area to any second power facility in the planning area when the first power facility exists in the planning area, and re-obtaining the load state of the first power facility after connection, determining whether to maintain the current connection state or select the center point position as a new power facility site according to the load state of the first power facility after connection, and selecting the center point position as a new power facility site when the first power facility does not exist in the planning area; the present application determines the corresponding power facility planning scheme by comprehensively considering the load states of the power facilities under different conditions, improves the planning accuracy, greatly shortens the planning cycle and improves the planning efficiency compared with the experience judgment of business personnel and the relatively simple statistical analysis of power data in the traditional method. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application or the related art. Obviously, the drawings in the following description only some of the embodiments of the present application, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0039] Figure 1 For an embodiment of the flowchart of the power facility planning and design method;

[0040] Figure 2 For an embodiment of the structural block diagram of the power facility planning and design device;

[0041] Figure 3 For an embodiment of the internal structure diagram of the computer equipment. DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of the present application, the following will be described with reference to the related drawings. The drawings show embodiments of the present application. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0043] 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 the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application. It can be understood that the terms "first", "second" and the like used in the present application can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0044] As used herein, the singular forms "a", "an" and "the" can also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "comprise / comprising" or "have / having" specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more other features, integers, steps, operations, components, parts or combinations thereof. At the same time, the term "and / or" used in the specification includes any and all combinations of the related listed items.

[0045] At present, the traditional power facility planning and design method usually adopts intelligent algorithm for site selection. The intelligent algorithm can provide scientific basis for site selection based on multi-dimensional information such as load data, geographical position, traffic condition, environmental condition, etc. through complex calculation and analysis. For example, the traditional intelligent algorithm can score and sort each potential site selection according to preset weight and rule, so as to determine the optimal site selection scheme (power facility planning scheme). Meanwhile, the traditional intelligent algorithm can also dynamically adjust and optimize the site selection scheme according to new data and conditions, so as to ensure the accuracy and timeliness of the site selection scheme. However, the preset weight and preset rule in the traditional intelligent algorithm often depend on the experience of business personnel, and it is difficult to fully consider the influence of various factors, so there is a problem of low planning efficiency and planning accuracy.

[0046] The power facility planning and design method provided by the embodiments of the present application determines the corresponding power facility planning scheme by comprehensively considering the load state of each power facility under different conditions and other related factors, which improves the planning accuracy. Compared with the experience judgment of business personnel and the relatively simple statistical analysis of power data in the traditional method, the planning cycle is greatly shortened and the planning efficiency is improved.

[0047] In an exemplary embodiment, as shown in Figure 1 A power facility planning and design method is provided. The method is applied to a computer device as an example for illustration, and the method comprises the following steps:

[0048] In S102, historical operation data of a candidate power facility in a preset area is obtained, the power demand of the candidate power facility is predicted according to the historical operation data, and a power demand prediction value of the candidate power facility is obtained. The load state of the candidate power facility is a non-full load state.

[0049] The power facility can refer to a facility for transforming and distributing electric energy. In the embodiments of the present application, a power facility is taken as an example for illustration, which is a substation. The preset area can be set according to actual conditions, which is not limited in the embodiments of the present application. The candidate power facility can be set according to actual conditions, and in the embodiments of the present application, the load state of the candidate power facility is taken as a non-full load state as an example for illustration.

[0050] Specifically, the computer device can be integrated with a GIS (Geographic Information System), and a user can select a point on a map through the map drawing function of the GIS, and then input a scanning radius (set according to actual conditions) to determine a range area (preset area) that needs to be judged and calculated. The computer device can obtain historical operation data of the candidate power facilities in the preset area, for example, the computer device can obtain actual power consumption data of the candidate power facilities in the preset area for the past three years, and predict the predicted power consumption demand (power demand prediction value) of the candidate power facilities according to the actual power consumption data for the past three years. The way of predicting the power consumption demand of the candidate power facilities according to the historical operation data can be set according to actual conditions, which is not limited in the embodiments of the present application.

[0051] It should be noted that the load state of the candidate power facility in the non-full load state can mean that the load rate of the candidate power facility is less than 100%, and the load rate can be determined by the annual total power supply amount in the historical operation data and the maximum load value corresponding to the candidate power facility.

[0052] S104, according to the maximum load of the candidate power facility and the power demand prediction value, determine the load information corresponding to the candidate power facility, and divide each candidate power facility into a first power facility and a second power facility based on the load information, wherein the load state of the first power facility is a light load state, and the load state of the second power facility is an overload state.

[0053] Specifically, the computer device can store the maximum load corresponding to each power facility, and the computer device can obtain the load information corresponding to the candidate power facility by the maximum load M of the candidate power facility and the power demand prediction value P, wherein the load information can include the load rate λ, the load state of each candidate power facility is determined according to the load rate λ, and each candidate power facility is divided into a first power facility and a second power facility according to the load state. The first power facility and the second power facility are integrated to form a site list and stored.

[0054] It should be noted that the computer device can determine the predicted load Q at the prediction time according to the power demand prediction value P, as shown in the following formula (1):

[0055] Q = P / 8760 (1);

[0056] And according to the predicted load Q at the prediction time and the maximum load M of the candidate power facility, the load rate λ of the candidate power facility is obtained, as shown in the following formula (2):

[0057] λ = Q / M (2);

[0058] Wherein, the load rate λ less than 30% is light load state, and the load rate λ greater than 80% is overload state.

[0059] S106, the center point position corresponding to the position of each second power facility is calculated, and the planning area is determined based on the center point position, and the planning area is a circular area with the center point position as the center and the preset distance as the radius.

[0060] Wherein, the preset distance can be set by the user according to the actual situation, which is not limited in the embodiment of the application.

[0061] Specifically, the computer device can read the position (site position) of each second power facility stored in the site list, calculate the center point position from the site position and related information, set the preset distance as the processing radius with the center point position as the center, and obtain the planning area.

[0062] S108, if the first power facility exists in the planning area, the first power facility in the planning area is connected to any second power facility in the planning area, and the load state of the connected first power facility is reacquired; when the load state of the connected first power facility is light load state or balanced state, the current connection state is maintained; when the load state of the connected first power facility is overload state, the connection between the first power facility and the second power facility is disconnected, and the center point position is selected as a new power facility.

[0063] Specifically, the computer device can scan whether the first power facility exists in the planning area, if the first power facility exists in the planning area, the first power facility is connected to any second power facility in the planning area, in order to reduce the wiring cost, the first power facility can be connected to the second power facility closest to the first power facility in the planning area to share the power supply demand of the second power facility, according to the shared power supply demand and the maximum load corresponding to the first power facility, the load state of the connected first power facility is reacquired, whether the connected first power facility will enter overload state is judged, if not, the first power facility is connected to the corresponding second power facility, which is stored in the scheme list, this scheme can reduce the number of power facilities in overload state without expanding the existing power facilities or building new power facilities, which meets the power demand, improves the safety of power facilities and reduces the cost of power planning; if so, the center point position is selected as a new power facility, a scheme is formed and stored in the scheme list.

[0064] It should be noted that the load state of the first power facility being a light load state can mean that the load rate of the alternative power facility at this time is less than 30%, the load state of the first power facility being a balanced state can mean that the load rate of the alternative power facility at this time is in the interval of 30% to 80%, and the load state of the first power facility being an overload state can mean that the load rate of the alternative power facility at this time is greater than 80%; the load rate can be determined by the allocated power supply demand and the maximum load corresponding to the first power facility.

[0065] S110, if there is no first power facility in the planning area, the center point position is selected as a new power facility site.

[0066] Specifically, if the computer device scans the planning area and finds that there is no first power facility in the planning area, the center point position is selected as a new power facility site, a scheme is formed and stored in the scheme list.

[0067] The above power facility planning and design method determines the corresponding power facility planning scheme by comprehensively considering the load state of each power facility under different conditions and other related factors, improves the accuracy of planning, greatly shortens the planning cycle and improves the planning efficiency compared with the experience judgment of business personnel and the relatively simple statistical analysis of power data in the traditional method. In addition, compared with the traditional method of adding new power facilities to meet the growing power demand, connecting power facilities in a light load state to power facilities in an overload state to allocate power demand, the safety of power facilities is improved while the cost of power facility planning is reduced.

[0068] In one of the embodiments, before obtaining the historical operation data of the alternative power facility in the preset area, further comprising:

[0069] Obtain the line information between the first power facility and the second power facility deployed in the preset area, wherein the operating current corresponding to the first power facility is greater than the operating current corresponding to the second power facility;

[0070] Based on the line information, determine the power data corresponding to the second power facility, and select the alternative power facility from each second power facility according to the power data.

[0071] Exemplarily, the first power facility in the embodiment of the application is a 220kV substation, and the second power facility is a 110kV substation.

[0072] Specifically, the computer device can scan all 220kV substations, 110kV feeders, busbars in 220kV substations and busbars in 110kV substations in the preset area, form a device data list (line information), and exclude the feeders of the substations (including 220kV substations and 110kV substations) in the preset area from the preset area, that is, keep the feeders between the substations in the preset area and exclude the feeders between the substations in the preset area and the substations in the non-preset area; wherein the 220kV substations are connected to the 110kV substations below them through 110kV feeders, and the 220kV substations and the 110kV substations are connected to the power grid through busbars.

[0073] The computer device can find the corresponding 110kV feeder of the 220kV substation, and then obtain the corresponding 110kV substation through the 110kV feeder, that is, determine the 110kV substation below it (back to the ownership relationship), determine the corresponding power data of the secondary power facility (110kV substation) through whether there is a connection line between the 110kV substations and the busbar condition (line information) in the substation (including 220kV substation and 110kV substation), and identify the 110kV substations that do not meet the N-1 condition, and then exclude the corresponding 110kV substation data, and determine the 110kV substations that meet the N-1 condition as the candidate power facility.

[0074] It should be noted that whether the N-1 condition is met can be judged by the load rate. If the load rate exceeds 100%, it does not meet the N-1 condition, otherwise it meets the N-1 condition.

[0075] In the embodiments of the present application, by obtaining the line information between the first-level power facilities and the second-level power facilities deployed in the preset area, the corresponding power data of the second-level power facility is determined, and the candidate power facility is selected from each second-level power facility, and the power facility in the full load state is excluded, which facilitates subsequent power facility planning and design and improves the planning efficiency.

[0076] In one of the embodiments, the second-level power facility includes a plurality of main transformers, and the power data includes annual total power supply and maximum load value; the candidate power facility is selected from each second-level power facility according to the power data, including:

[0077] According to the annual total power supply and the maximum load value, the load state of the second-level power facility is determined, and if the load state of the second-level power facility is a non-full load state, the second-level power facility is confirmed as a candidate power facility.

[0078] Specifically, the computer device can determine the average load of the secondary power facility through the annual total power supply, take the quotient of the average load and the maximum load value of the secondary power facility as the load rate of the secondary power facility, judge the load state of the secondary power facility according to the numerical interval where the load rate is located, and confirm the secondary power facility with a load rate less than 100% (at this time, the load state of the secondary power facility is a non-full load state, which meets the N-1 condition) as the candidate power facility.

[0079] In one of the embodiments, the power demand of the candidate power facility is predicted according to historical operation data, and a power demand prediction value of the candidate power facility is obtained, including:

[0080] The expected growth rate and the average growth rate of the national economy are obtained.

[0081] The power demand growth rate is determined according to the historical operation data, and the power elasticity coefficient is obtained based on the average growth rate and the power demand growth rate.

[0082] The power demand of the candidate power facility is predicted according to the expected growth rate, the power elasticity coefficient and the historical operation data, and the power demand prediction value is obtained.

[0083] The expected growth rate and the average growth rate of the national economy can be set according to actual conditions, which are not limited in the embodiments of the present application.

[0084] Specifically, the computer device obtains the expected growth rate z and the average growth rate G of the national economy, determines the actual power demand growth rate H based on the historical operation data, and obtains the power elasticity coefficient b according to the following formula (3):

[0085] b = H / G (3);

[0086] The power demand data (power demand prediction value P) of the planning year (set according to actual conditions) is calculated through the power demand prediction algorithm, that is, the power demand prediction value P is obtained according to the following formula (4):

[0087] (4);

[0088] Wherein, R represents the current actual power demand, which is obtained according to the historical operation data.

[0089] In the embodiments of the present application, the power demand of the candidate power facility is predicted according to the expected growth rate and the average growth rate of the national economy, and the historical operation data, and the power demand prediction value of the candidate power facility is obtained, which comprehensively considers the economic factors and improves the accuracy of subsequent power facility planning and design.

[0090] In one of the embodiments, the load state of the first power facility after re-acquiring the access comprises:

[0091] According to the power demand corresponding to the first power facility before the access and the power demand corresponding to the second power facility to be accessed, the power demand corresponding to the first power facility after the access is obtained;

[0092] Based on the power demand corresponding to the first power facility after the access and the maximum load of the first power facility, the load state of the first power facility after the access is determined.

[0093] Specifically, after the first power facility accesses the second power facility, the power supply demand of the second power facility (overloaded transformer substation) needs to be shared, that is, the corresponding power supply is shared. According to the shared power (the power demand corresponding to the first power facility after the access) and the maximum load of the first power facility, the load state of the first power facility after the access can be determined according to the above formula (2) (at this time, the shared power can be similar to the predicted load), and the load state of the first power facility after the access is determined.

[0094] In the embodiments of the present application, by determining the load state of the first power facility after the access according to the power demand corresponding to the first power facility before the access, the power demand corresponding to the second power facility to be accessed, and the maximum load of the first power facility, it is determined whether the problem of excessive load rate of the second power facility after the first power facility is accessed can be solved, rather than directly expanding or building a new power facility for the second power facility, thereby reducing the cost of power facility planning and design.

[0095] In one of the embodiments, the method further comprises:

[0096] According to the map information of the planning area, if it is confirmed that the second power facility in the planning area is allowed to be expanded, the map information comprises population density information and power facility location information;

[0097] If the load state of the first power facility after the access is an overload state, or there is no first power facility in the planning area, the load state of the second power facility after the expansion is obtained;

[0098] When the load state of the second power facility after the expansion is a light load state or a balanced state, it is confirmed that the second power facility is expanded; when the load state of the second power facility after the expansion is an overload state, it is confirmed that the second power facility is not expanded, and the center point position is used as a new power facility site.

[0099] Specifically, the computer device can determine whether the existing second power facility (overloaded transformer substation) has space for expansion through the GIS map, i.e., determine whether the second power facility is located in a densely populated urban area (determined according to population density information) or around an important facility point (determined according to power facility location information) according to the GIS map information, otherwise, expansion is allowed, and the second power facility allowed to expand is stored in the station list.

[0100] If the load state of the first power facility after access is an overload state, or if there is no first power facility in the planning area, the load rate of the second power facility after expansion (allowed to expand) is calculated, and the load state of the second power facility after expansion is determined according to the load rate of the second power facility after expansion; wherein the maximum load of the second power facility after expansion will change, at the same time, the load rate of the second power facility after expansion will also change, at this time, the way to obtain the load rate of the second power facility after expansion is similar to the above formula (2), which is not described herein.

[0101] When the load state of the second power facility after expansion is a light load state or a balanced state, i.e., when the load rate of the second power facility cannot be less than 80% by accessing the first power facility, the load rate of the second power facility allowed to expand can be reduced to below 80% by expanding the second power facility; when the load state of the second power facility after expansion is an overload state, i.e., when the load rate of the second power facility cannot be less than 80% by accessing the first power facility, the load rate of the second power facility allowed to expand cannot be reduced to below 80% by expanding the second power facility, then it is confirmed that the second power facility is not expanded, but the center point position is selected as a new power facility, a scheme is formed and stored in the scheme list.

[0102] Exemplarily, expanding the second power facility is to expand a main transformer in the second power facility, which is the same type as other main transformers in the power facility, which is equivalent to spreading the original load, the load rate of the original one main transformer is 100%, and the load rate of the two main transformers after expansion is 50%, which satisfies the condition that the load rate of the second power facility allowed to expand is reduced to below 80% by expanding the second power facility; if the load rate of each of the two original main transformers is 120%, after expanding one main transformer, the load rate of each main transformer becomes 80%, and the second power facility is still in an overload state, which does not satisfy the condition that the load rate of the second power facility allowed to expand is reduced to below 80% by expanding the second power facility; wherein the main transformer is a short name of a main transformer.

[0103] In the embodiments of the present application, whether the second power facility can be expanded is determined by comprehensively considering the population density information and the power facility location information, and whether the second power facility is expanded or the center point location is selected as a new power facility site is determined according to the load state of the second power facility after expansion, thereby reducing the power facility planning cost and improving the accuracy of power facility planning.

[0104] In one of the embodiments, the method further includes:

[0105] When it is determined that the preset site exists in the planning area;

[0106] If the load state of the first power facility after access is an overload state, the first power facility does not exist in the planning area, the load state of the second power facility after expansion is an overload state, or the second power facility is not allowed to expand, the preset site is selected as a new power facility site.

[0107] It should be noted that the preset site can be a site planned by a user according to actual conditions, which is not described in detail in the embodiments of the present application.

[0108] Specifically, when it is determined that the preset site exists in the planning area, if the load rate of the second power facility cannot be reduced to less than 80% by accessing the first power facility, or the first power facility does not exist in the planning area, or the load rate of the second power facility cannot be reduced to less than 80% by expanding the second power facility allowed to expand, or the second power facility is not allowed to expand, the preset site is selected as a new power facility site, a scheme is formed, and the scheme is stored in the scheme list.

[0109] It should be noted that the power facility planning method provided in the embodiments of the present application gives priority to accessing the first power facility in a light load state to the second power facility to reduce the load rate of the second power facility to less than 80%, then considers expanding the second power facility allowed to expand to reduce the load rate of the second power facility to less than 80%, and finally considers presetting a new site to build a new power facility to reduce the load rate of the second power facility to less than 80%. If the above situations cannot reduce the load rate of the second power facility to less than 80%, the center point location is selected as a new power facility site, a scheme is formed, and the scheme is stored in the scheme list.

[0110] For example, the computer device can also output all the scheme lists in a unified data and graphic file, organize the scheme lists for the user to sort out, and then select the optimal scheme therefrom. Further, the site can also be customized through other requirements and constraints to meet the site selection requirements in different scenarios, and is not limited to the way mentioned in the embodiments of the present application.

[0111] It should be understood that although the steps in the flowcharts involved in the embodiments described above are shown in sequence according to the arrows, the steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, the execution of the steps is not strictly limited in sequence, and the steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the embodiments described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of the steps or stages is not necessarily sequential, but can be alternately or alternately executed with at least part of other steps or steps or stages in other steps.

[0112] Based on the same inventive concept, the embodiments of the present application also provide a power facility planning and design device for implementing the power facility planning and design method described above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more power facility planning and design device embodiments provided below can refer to the limitations of the power facility planning and design method described above, which will not be repeated here.

[0113] In one exemplary embodiment, as shown in Figure 2 A power facility planning and design device 200 is provided, and the device 200 includes:

[0114] A prediction module 201 is configured to obtain historical operation data of a candidate power facility in a preset area, predict power demand of the candidate power facility according to the historical operation data, and obtain a predicted value of the power demand of the candidate power facility; wherein the load state of the candidate power facility is a non-full load state.

[0115] A division module 202 is configured to determine load information corresponding to the candidate power facility according to the maximum load and the predicted value of the power demand of the candidate power facility, and divide each candidate power facility into a first power facility and a second power facility based on the load information, wherein the load state of the first power facility is a light load state, and the load state of the second power facility is an overload state.

[0116] A region determination module 203 is configured to calculate a center point position corresponding to the position of each second power facility, and determine a planning region based on the center point position, wherein the planning region is a circular region with the center point position as the center and a preset distance as the radius.

[0117] The planning module 204 is configured to, if the first power facility exists in the planning area, connect the first power facility in the planning area to any second power facility in the planning area, and reacquire the load state of the first power facility after being connected; when the load state of the first power facility after being connected is a light load state or a balanced state, maintain the current connection state; when the load state of the first power facility after being connected is an overload state, disconnect the connection between the first power facility and the second power facility, and take the center point position as a new power facility site.

[0118] The planning module 204 is further configured to, if the first power facility does not exist in the planning area, take the center point position as a new power facility site.

[0119] In one of the embodiments, the prediction module 201 is further configured to acquire line information between the first power facility and the second power facility deployed in the preset area, wherein the first power facility corresponds to a running current greater than that of the second power facility.

[0120] Based on the line information, the power data corresponding to the second power facility is determined, and the candidate power facility is selected from the second power facilities according to the power data.

[0121] In one of the embodiments, the second power facility includes a plurality of main transformers, and the power data includes an annual total power supply and a maximum load value; the prediction module 201 is further configured to determine the load state of the second power facility according to the annual total power supply and the maximum load value, and confirm the second power facility as the candidate power facility if the load state of the second power facility is a non-full load state.

[0122] In one of the embodiments, the prediction module 201 is further configured to acquire an expected growth rate and an average growth rate of the national economy.

[0123] The power demand growth rate is determined according to the historical operation data, the power elasticity coefficient is obtained based on the average growth rate and the power demand growth rate;

[0124] The power demand of the candidate power facility is predicted according to the expected growth rate, the power elasticity coefficient and the historical operation data, and a power demand prediction value is acquired.

[0125] In one of the embodiments, the planning module 204 is further configured to acquire the power demand of the first power facility after being connected according to the power demand of the first power facility before being connected and the power demand of the second power facility to be connected.

[0126] Based on the power demand of the first power facility after being connected and the maximum load of the first power facility, the load state of the first power facility after being connected is determined.

[0127] In one of the embodiments, the device 200 further comprises an expansion module, configured to determine whether the second power facility in the planning area is allowed to expand according to the map information in which the planning area is located, wherein the map information comprises population density information and power facility location information;

[0128] If the load state of the first power facility after the access is an overload state, or the first power facility does not exist in the planning area, the load state of the second power facility after the expansion is obtained;

[0129] When the load state of the second power facility after the expansion is a light load state or a balanced state, it is determined to expand the second power facility; when the load state of the second power facility after the expansion is an overload state, it is determined not to expand the second power facility, and the center point position is selected as a new power facility site.

[0130] In one of the embodiments, the device 200 further comprises a preset site selection module, configured to determine that a preset site selection exists in the planning area;

[0131] If the load state of the first power facility after the access is an overload state, the first power facility does not exist in the planning area, the load state of the second power facility after the expansion is an overload state, or the second power facility is not allowed to expand, the preset site selection is selected as a new power facility site.

[0132] The above-mentioned modules in the power facility planning and design device can be realized by software, hardware and combinations thereof in whole or in part. The above-mentioned modules can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to the above-mentioned modules.

[0133] In one of the embodiments, a computer device is provided, which can be a terminal, and the internal structure diagram thereof can be as shown in Figure 3The computer device shown in the figure includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capability. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals in a wired or wireless manner. The wireless manner can be realized through WIFI, mobile cellular network, near field communication (NFC) or other technologies. The computer program is executed by the processor to realize a power facility planning and design method. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the shell of the computer device, or an external keyboard, touchpad or mouse, etc.

[0134] Those skilled in the art can understand that, Figure 3 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0135] In one exemplary embodiment, a computer device is provided, including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to realize the power facility planning and design method described above.

[0136] In one embodiment, a computer readable storage medium is provided, which stores a computer program, and the computer program is executed by a processor to realize the power facility planning and design method described above.

[0137] In one embodiment, a computer program product is provided, including a computer program, and the computer program is executed by a processor to realize the power facility planning and design method described above.

[0138] It should be noted that the data involved in the present application (including but not limited to data for analysis, stored data, displayed data, etc.) are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant regulations.

[0139] It can be understood by those skilled in the art that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing related hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiments of each method. In the embodiments provided in the present application, any reference to memory, database or other medium can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive random access memory (Resistive Random Access Memory, ReRAM), magnetoresistive random access memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric memory (Ferroelectric Random Access Memory, FRAM), phase change memory (Phase Change Memory, PCM), graphene memory, etc. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (Artificial Intelligence, AI) processor, etc., without being limited thereto.

[0140] The technical features of the above embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0141] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A method of electric power facility planning and design, characterized by, The method comprises: obtaining historical operation data of candidate power facilities in a preset area, predicting power demand of the candidate power facilities according to the historical operation data, and obtaining a power demand prediction value of the candidate power facilities; wherein, the load state of the candidate power facilities is a non-full load state; determining load information corresponding to the candidate power facilities according to the maximum load of the candidate power facilities and the power demand prediction value, and dividing each of the candidate power facilities into a first power facility and a second power facility based on the load information, wherein, the load state of the first power facility is a light load state, and the load state of the second power facility is an overload state; calculating a center point position corresponding to the position of each of the second power facilities, and determining a planning area based on the center point position, wherein the planning area is a circular area with the center point position as the center and a preset distance as the radius; if the first power facility exists in the planning area, connecting the first power facility in the planning area to any of the second power facilities in the planning area, and re-obtaining the load state of the first power facility after connection; when the load state of the first power facility after connection is a light load state or a balanced state, maintaining the current connection state; when the load state of the first power facility after connection is an overload state, disconnecting the connection between the first power facility and the second power facility, and taking the center point position as a new power facility site; if the first power facility does not exist in the planning area, taking the center point position as a new power facility site.

2. The method of claim 1, wherein, Before the step of obtaining the historical operation data of the candidate power facilities in the preset area, the method further comprises: obtaining line information between a first power facility and a second power facility deployed in the preset area, wherein the operating current corresponding to the first power facility is greater than the operating current corresponding to the second power facility; based on the line information, determining power data corresponding to the second power facility, and selecting the candidate power facility from each of the second power facilities according to the power data.

3. The method of claim 2, wherein, The second power facility comprises a plurality of main transformers, and the power data comprises annual total power supply and maximum load value; The step of selecting the candidate power facility from each of the second power facilities according to the power data comprises: determining the load state of the second power facility according to the annual total power supply and the maximum load value, and confirming the second power facility as the candidate power facility if the load state of the second power facility is a non-full load state.

4. The method of claim 1, wherein, The step of predicting power demand of the candidate power facilities according to the historical operation data and obtaining a power demand prediction value of the candidate power facilities comprises: obtaining an expected growth rate and an average growth rate of the national economy; determining a power demand growth rate according to the historical operation data, and obtaining a power elasticity coefficient based on the average growth rate and the power demand growth rate; According to the expected growth rate, the power elasticity coefficient and the historical operation data, the power demand of the alternative power facility is predicted to obtain the power demand prediction value.

5. The method of claim 1, wherein, The load state of the first power facility after the access is re-acquired, including: According to the power demand corresponding to the first power facility before the access and the power demand corresponding to the second power facility to be accessed, the power demand corresponding to the first power facility after the access is obtained; Based on the power demand corresponding to the first power facility after the access and the maximum load of the first power facility, the load state of the first power facility after the access is determined.

6. The method of claim 1, wherein, The method further includes: When it is confirmed that the second power facility in the planning area is allowed to expand according to the map information where the planning area is located, wherein the map information includes population density information and power facility location information; If the load state of the first power facility after the access is an overload state, or the first power facility does not exist in the planning area, the load state of the second power facility after the expansion is obtained; When the load state of the second power facility after the expansion is a light load state or a balanced state, it is confirmed that the second power facility is expanded; when the load state of the second power facility after the expansion is an overload state, it is confirmed that the second power facility is not expanded, and the center point position is taken as a new power facility site.

7. The method of claim 6, wherein, The method further includes: When it is confirmed that the planning area exists in a preset site; If the load state of the first power facility after the access is an overload state, the first power facility does not exist in the planning area, the load state of the second power facility after the expansion is an overload state, or the second power facility is not allowed to expand, the preset site is taken as a new power facility site.

8. An electric power facility planning and designing device characterized by comprising: The device includes: A prediction module is configured to obtain historical operation data of alternative power facilities in a preset area, and predict power demand of the alternative power facilities according to the historical operation data to obtain a power demand prediction value of the alternative power facilities; wherein the load state of the alternative power facilities is a non-full load state; A division module is configured to determine load information corresponding to the alternative power facilities according to the maximum load of the alternative power facilities and the power demand prediction value, and divide each of the alternative power facilities into a first power facility and a second power facility based on the load information, wherein the load state of the first power facility is a light load state, and the load state of the second power facility is an overload state; A region determination module is configured to calculate a center point position corresponding to the position of each of the second power facilities, and determine a planning area based on the center point position, wherein the planning area is a circular area with the center point position as the center and a preset distance as the radius. The planning module is configured to, if the first power facility exists in the planning area, connect the first power facility in the planning area to any second power facility in the planning area, and reacquire the load state of the first power facility after the connection; when the load state of the first power facility after the connection is a light load state or a balanced state, maintain the current connection state; when the load state of the first power facility after the connection is an overload state, disconnect the connection between the first power facility and the second power facility, and take the center point position as a new power facility site. The planning module is further configured to, if the first power facility does not exist in the planning area, take the center point position as a new power facility site. 9.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-8 when the computer program is executed by the processor. The processor, when executing the computer program, implements the steps of the method in any one of claims 1 to 7.

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

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