Power facility planning and designing method and device

Abstract

The invention relates to an electric power facility planning and designing method and device. The method comprises the steps of predicting power demands of alternative power facilities in a preset area according to historical operation data, determining load information corresponding to the alternative power facilities, and dividing the alternative power facilities into first power facilities and second power facilities based on the load information, determining a central point position and a planning area according to the position of the second electric power facility, accessing the first electric power facility in the planning area to any second electric power facility in the planning area when the first electric power facility exists in the planning area, and obtaining the load state of the accessed first electric power facility again, according to the load state of the accessed first electric power facility, whether the current access state is maintained or the central point position is used as a new electric power facility site selection is determined, and when the first electric power facility does not exist in the planning area, the central point position is used as the new electric power facility site selection; by adopting the method, the planning efficiency and the planning accuracy can be improved.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a method and device for planning and designing electric power facilities. Background Art

[0002] In the power system, the site selection and layout of power facilities are of great significance for improving power supply reliability, reducing operating costs and optimizing resource allocation; however, traditional power facility planning and design methods often rely on the experience and judgment of business personnel and relatively simple statistical analysis of power data, which makes it difficult to fully consider the impact of various factors, and there are problems with low planning efficiency and accuracy. Summary of the invention

[0003] Based on this, it is necessary to provide a power facility planning and design method and device that can improve planning efficiency and planning accuracy in response to the above technical problems.

[0004] In a first aspect, the present application provides a method for planning and designing electric power facilities, the method comprising:

[0005] Obtaining historical operation data of alternative power facilities in a preset area, predicting the power demand of the alternative power facilities based on the historical operation data, and obtaining a predicted value of the power demand of the alternative power facilities; wherein the load state of the alternative power facilities is a non-full load state;

[0006] Determine the load information corresponding to the alternative power facilities according to the maximum load and the predicted value of the electric energy demand of the alternative power facilities, and divide each alternative 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;

[0007] Calculate the center point position corresponding to the position of each second power facility, and determine the planning area based on the center point position, where 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, the first power facility in the planning area is connected to any second power facility in the planning area, and the load status of the first power facility after the connection is re-acquired; when the load status of the first power facility after the connection is a light load status or a balanced status, the current connection status is maintained; when the load status of the first power facility after the connection is an overload status, the connection between the first power facility and the second power facility is disconnected, and the center point position is used as the new power facility site selection;

[0009] If the first power facility does not exist in the planning area, the center point will be used as the site for the new power facility.

[0010] In one embodiment, before obtaining the historical operation data of the candidate power facilities in the preset area, the method further includes:

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

[0012] Based on the line information, the power data corresponding to the secondary power facilities is determined, and the alternative power facilities are selected from each secondary power facility according to the power data.

[0013] In one embodiment, the secondary power facility includes a plurality of main transformers, and the power data includes an annual total power supply and a maximum load value; selecting an alternative power facility from each secondary power facility according to the power data includes:

[0014] The load status of the secondary power facility is determined based on the annual total power supply and the maximum load value. If the load status of the secondary power facility is not fully loaded, the secondary power facility will be confirmed as an alternative power facility.

[0015] In one embodiment, predicting the power demand of the alternative power facility based on historical operation data to obtain the predicted value of the power demand of the alternative power facility includes:

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

[0017] Determine the growth rate of electricity demand based on historical operating data, and obtain the electricity elasticity coefficient based on the average growth rate and the growth rate of electricity demand;

[0018] The electricity demand of alternative power facilities is predicted based on the expected growth rate, power elasticity coefficient and historical operating data to obtain the predicted value of electricity demand.

[0019] In one embodiment, reacquiring the load state of the first electric power facility after access includes:

[0020] Obtaining the power demand corresponding to the first power facility after access based on the power demand corresponding to the first power facility before access and the power demand corresponding to the second power facility to be accessed;

[0021] 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.

[0022] In one embodiment, the method further comprises:

[0023] When confirming that the second electric power facility in the planning area is allowed to be expanded according to the map information of the planning area, wherein the map information includes population density information and electric power facility location information;

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

[0025] When the load status of the second power facility after expansion is light load or balanced, it is confirmed that the second power facility will be expanded; when the load status of the second power facility after expansion is overload, it is confirmed that the second power facility will not be expanded, and the center point position will be used as the new power facility site.

[0026] In one embodiment, the method further comprises:

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

[0028] If the load status of the first power facility after connection is overloaded, the first power facility does not exist in the planning area, the load status of the second power facility after expansion is overloaded, or the second power facility is not allowed to be expanded, the preset site will be used as the new site for the power facility.

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

[0030] A prediction module is used to obtain historical operation data of alternative power facilities in a preset area, predict the power demand of the alternative power facilities based on the historical operation data, and obtain the predicted value of the power demand of the alternative power facilities; wherein the load state of the alternative power facilities is a non-full load state;

[0031] A division module, used to determine the load information corresponding to the alternative power facilities according to the maximum load and the predicted value of the electric energy demand of the alternative power facilities, and divide each alternative 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] An area determination module, used to calculate the center point position corresponding to the position of each second electric power facility, and determine the planning area based on the center point position, where the planning area is a circular area with the center point position as the center and a preset distance as the radius;

[0033] A planning module is used to connect the first power facility in the planning area to any second power facility in the planning area if there is a first power facility in the planning area, and re-acquire 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 use the center point as the new power facility site selection;

[0034] The planning module is also used to select the center point as the new site for the power facility if the first power facility does not exist in the planning area.

[0035] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein 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 also provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the above method when the computer program is executed by a processor.

[0037] The above-mentioned power facility planning and design method and device predict the electricity demand of the alternative power facilities by acquiring the historical operation data of the alternative power facilities in the preset area, determine the load information corresponding to the alternative power facilities according to the predicted value of the predicted electric energy demand and the maximum load of the alternative power facilities, and divide each alternative power facility into a first power facility and a second power facility based on the load information, determine the center point location and the planning area according to the location of the second power facility, and when there is a first power facility in the planning area, connect the first power facility in the planning area to any second power facility in the planning area, and re-acquire the load status of the first power facility after the connection, and determine whether to maintain the current connection status or use the center point location as the new power facility site according to the load status of the first power facility after the connection, and when there is no first power facility in the planning area, use the center point location as the new power facility site; this application determines the corresponding power facility planning scheme by comprehensively considering the load status of each power facility under different situations, thereby improving the accuracy of the planning. Compared with the traditional method that relies on the experience judgment of business personnel and the relatively simple statistical analysis of power data, it greatly shortens the planning cycle and improves the planning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic diagram of a flow chart of a method for planning and designing electric power facilities in one embodiment;

[0040] Figure 2 A structural block diagram of a power facility planning and design device in one embodiment;

[0041] Figure 3 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0042] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented 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 those generally understood by those skilled in the art of the technical field of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. It is understood that the terms "first", "second", etc. used in the present application can be used to describe various elements in this article, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element.

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

[0045] At present, traditional power facility planning and design methods usually use intelligent algorithms for site selection. These intelligent algorithms can provide a scientific basis for site selection through complex calculations and analysis based on multi-dimensional information such as load data, geographical location, traffic conditions, and environmental conditions. For example: traditional intelligent algorithms can score and rank each potential site according to preset weights and rules to determine the optimal site selection plan (power facility planning plan). At the same time, traditional intelligent algorithms can also dynamically adjust and optimize site selection plans based on new data and situations to ensure the accuracy and timeliness of site selection plans; however, the preset weights and preset rules in traditional intelligent algorithms often rely on the experience of business personnel, making it difficult to fully consider the impact of various factors, and there are problems with low planning efficiency and accuracy.

[0046] The power facility planning and design method provided in the embodiment of the present application determines the corresponding power facility planning scheme by comprehensively considering the load status of each power facility in different situations and other relevant factors, thereby improving the accuracy of planning. Compared with the traditional method that relies on the experience judgment of business personnel and the relatively simple statistical analysis of power data, it greatly shortens the planning cycle and improves planning efficiency.

[0047] In an exemplary embodiment, Figure 1 As shown, a method for planning and designing power facilities is provided, and the method is described by taking the application of the method to computer equipment as an example. The method includes:

[0048] S102, obtaining historical operation data of alternative power facilities in a preset area, predicting the electricity demand of the alternative power facilities based on the historical operation data, and obtaining a predicted value of the electric energy demand of the alternative power facilities; wherein the load state of the alternative power facilities is a non-full load state.

[0049] Among them, power facilities may refer to facilities used to transform and distribute electric energy. In the embodiment of the present application, the power facilities are taken as substations as an example for explanation; the preset area can be set according to actual conditions and is not limited in the embodiment of the present application; the alternative power facilities can be set according to actual conditions. In the embodiment of the present application, the load state of the alternative power facilities is taken as a non-full load state as an example for explanation.

[0050] Specifically, a GIS (Geographic Information System) may be integrated into the computer device. The user may use the GIS mapping function to select a point on the map and then input the scanning radius (set according to actual conditions) to determine the range area (preset area) that requires judgment and calculation. The computer device may obtain historical operating data of alternative power facilities in the preset area. For example, the computer device may obtain the actual power consumption data of the alternative power facilities in the preset area over the past three years, and predict the predicted power demand (predicted power demand value) of the alternative power facilities based on the actual power consumption data over the past three years. The method for predicting the power demand of the alternative power facilities based on the historical operating data may be set according to actual conditions and is not limited in the embodiments of the present application.

[0051] It should be noted that the load state of the alternative power facilities being a non-full load state may mean that the load rate of the alternative power facilities at this time is less than 100%, and the load rate may be determined by the annual total power supply in the historical operation data and the maximum load value corresponding to the alternative power facilities.

[0052] S104, determining the load information corresponding to the alternative power facilities according to the maximum load and the predicted electric energy demand value of the alternative power facilities, and dividing each alternative 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 maximum load corresponding to each power facility may be stored in the computer device. The computer device obtains the corresponding load information of the alternative power facilities based on the maximum load M of the alternative power facilities and the predicted value P of electric energy demand, wherein the load information may include a load rate λ. The load status of each alternative power facility is determined according to the load rate λ, and each alternative power facility is divided into a first power facility and a second power facility according to the load status. 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 equipment can determine the load Q at the predicted time according to the predicted value of power demand P, as shown in the following formula (1):

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

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

[0057] λ = Q / M(2);

[0058] Among them, a load rate λ less than 30% indicates a light load state, and a load rate λ greater than 80% indicates an overload state.

[0059] S106, 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, where the planning area is a circular area with the center point position as the center and a preset distance as the radius.

[0060] Among them, the preset distance can be set by the user according to actual conditions and is not limited in the embodiments of the present application.

[0061] Specifically, the computer device can read the location (site location) of each second power facility stored in the site list, calculate the center point location of these site locations based on the site location and related information, take the center point location as the center of the circle, set the preset distance as the processing radius, and obtain the planned area.

[0062] S108, if there is a first power facility 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 status of the first power facility after the connection is re-acquired; when the load status of the first power facility after the connection is a light load status or a balanced status, the current connection status is maintained; when the load status of the first power facility after the connection is an overload status, the connection between the first power facility and the second power facility is disconnected, and the center point position is used as the new power facility site.

[0063] Specifically, the computer device can scan whether there is a first power facility in the planning area. If there is a first power facility in the planning area, the first power facility is instructed to access any second power facility in the planning area. In order to reduce the wiring cost, the first power facility can be instructed to access 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 first power facility after access is re-acquired to determine whether the access will cause the first power facility to enter an overload state. If not, the solution of the first power facility accessing the corresponding second power facility is stored in the solution list. This solution does not require the expansion of existing power facilities or the construction of new power facilities to reduce the number of power facilities in an overloaded state, thereby meeting electricity demand, improving the safety of power facilities and reducing the cost of power planning; if so, the center point location is used as the new power facility site selection, and a plan is formed and stored in the plan list.

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

[0065] S110: If the first power facility does not exist 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 the first power facility does not exist in the planning area, the center point position is used as the new site for the power facility, a plan is formed and stored in the plan list.

[0067] The above-mentioned power facility planning and design method determines the corresponding power facility planning scheme by comprehensively considering the load status of each power facility in different situations and other relevant factors, thereby improving the accuracy of planning. Compared with the traditional method that relies on the experience and judgment of business personnel and the relatively simple statistical analysis of power data, it greatly shortens the planning cycle and improves the planning efficiency. In addition, compared with the traditional method of adding new power facilities to meet the growing electricity demand and connecting power facilities in a lightly loaded state to power facilities in an overloaded state to share the electricity demand, it improves the safety of power facilities while reducing the cost of power facility planning.

[0068] In one embodiment, before obtaining the historical operation data of the candidate power facilities in the preset area, the method further includes:

[0069] Obtaining line information between primary power facilities and secondary power facilities deployed in a preset area, wherein the operating current corresponding to the primary power facilities is greater than the operating current corresponding to the secondary power facilities;

[0070] Based on the line information, the power data corresponding to the secondary power facilities is determined, and the alternative power facilities are selected from each secondary power facility according to the power data.

[0071] For example, in the embodiments of the present application, the primary power facility is a 220kV substation and the secondary power facility is a 110kV substation.

[0072] Specifically, the computer equipment can scan the connection status of all 220kV substations, 110kV feeders, busbars in 220kV substations and busbars in 110kV substations in the preset area, form an equipment data list (line information), and exclude the feeders of substations (including 220kV substations and 110kV substations) in non-preset areas within the preset area, that is, the feeders between the substations in the preset area are retained, and the feeders between the substations in the preset area and the substations in non-preset areas are excluded; among them, the 220kV substation is connected to the 110kV substation below it through the 110kV feeder, and the 220kV substation and the 110kV substation are connected to the power grid through the busbar.

[0073] The computer equipment can find the corresponding 110kV feeder line through the 220kV substation, and then obtain the corresponding 110kV substation through the 110kV feeder, that is, determine the 110kV substation below it (return the affiliation relationship), and determine the power data corresponding to the secondary power facility (110kV substation) through whether there are connecting lines between 110kV substations and the busbar conditions (line information) in the substation (including 220kV substation and 110kV substation), and identify the 110kV substation that does not meet the N-1 condition, and then exclude the corresponding 110kV substation data, and determine the 110kV substation that meets the N-1 condition as an alternative 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%, the N-1 condition is not met; otherwise, the N-1 condition is met.

[0075] In an embodiment of the present application, by obtaining the line information between the primary power facilities and the secondary power facilities deployed in a preset area, the power data corresponding to the secondary power facilities is determined, and alternative power facilities are selected from each secondary power facility, excluding power facilities that are already in a fully loaded state, thereby facilitating subsequent planning and design of power facilities and improving planning efficiency.

[0076] In one embodiment, the secondary power facility includes a plurality of main transformers, and the power data includes an annual total power supply and a maximum load value; selecting an alternative power facility from each secondary power facility according to the power data includes:

[0077] The load status of the secondary power facility is determined based on the annual total power supply and the maximum load value. If the load status of the secondary power facility is not fully loaded, the secondary power facility will be confirmed as an alternative power facility.

[0078] Specifically, the computer equipment can determine the average load corresponding to the secondary power facility through the annual total power supply, take the quotient of the average load and the maximum load value corresponding to the secondary power facility as the load rate of the secondary power facility, judge the load state of the secondary power facility based on the numerical range of the load rate, and identify the secondary power facilities with a load rate less than 100% (at this time the load state of the secondary power facility is not fully loaded, meeting the N-1 condition) as alternative power facilities.

[0079] In one embodiment, predicting the power demand of the alternative power facility based on historical operation data to obtain the predicted value of the power demand of the alternative power facility includes:

[0080] Obtain the expected growth rate and average growth rate of the national economy;

[0081] Determine the growth rate of electricity demand based on historical operating data, and obtain the electricity elasticity coefficient based on the average growth rate and the growth rate of electricity demand;

[0082] The electricity demand of alternative power facilities is predicted based on the expected growth rate, power elasticity coefficient and historical operating data to obtain the predicted value of electricity demand.

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

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

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

[0086] Then, the power demand data (power demand forecast value P) of the planned year (set according to the actual situation) is calculated through the power demand forecasting algorithm, that is, the power demand forecast value P is obtained according to the following formula (4):

[0087] (4);

[0088] Among them, R represents the current actual electricity demand, which is obtained based on historical operation data.

[0089] In the embodiment of the present application, by obtaining the expected growth rate and average growth rate of the national economy, and predicting the electricity demand of alternative power facilities based on historical transportation data, the expected growth rate and average growth rate of the national economy, the predicted value of the electricity demand of the alternative power facilities is obtained, which comprehensively considers economic factors and improves the accuracy of subsequent planning and design of power facilities.

[0090] In one embodiment, reacquiring the load state of the first electric power facility after access includes:

[0091] Obtaining the power demand corresponding to the first power facility after access based on the power demand corresponding to the first power facility before access and the power demand corresponding to the second power facility to be accessed;

[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 is connected to the second power facility, it needs to share the power supply demand of the second power facility (heavily overloaded substation), that is, share the corresponding power supply. According to the shared power (the power demand corresponding to the first power facility after the connection) and the maximum load of the first power facility, the load state of the first power facility after the connection can be determined according to the above formula (2) (at this time, the shared power can be similar to the load at the predicted time), and then the load state of the first power facility after the connection is determined.

[0094] In the embodiment of the present application, the load state of the first power facility after access is determined based on the power demand corresponding to the first power facility before access, the power demand corresponding to the second power facility to be accessed, and the maximum load of the first power facility. It is prioritized to judge whether the problem of excessive load rate of the second power facility can be alleviated after access to the first power facility, rather than directly expanding the second power facility or building a new power facility, thereby reducing the cost of planning and designing power facilities.

[0095] In one embodiment, the method further comprises:

[0096] When confirming that the second electric power facility in the planning area is allowed to be expanded according to the map information of the planning area, wherein the map information includes population density information and electric power facility location information;

[0097] If the load state of the first power facility after access is an overload state, or the first power facility does not exist in the planning area, then the load state of the second power facility after expansion is obtained;

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

[0099] Specifically, the computer equipment can determine through the GIS map whether there is room for expansion of the existing second power facility (heavy overload substation), that is, based on the GIS map information, determine whether the second power facility is located in a densely populated urban area (determined based on population density information) or around important facilities (determined based on the power facility location information). Otherwise, expansion is allowed, and the second power facilities that are allowed to be expanded will be stored in the site list.

[0100] If the load state of the first power facility after connection is an overload state, or the first power facility does not exist in the planning area, the load rate of the second power facility after expansion (expansion is allowed) 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, and at the same time, the load rate of the second power facility after expansion will also change. At this time, the method of obtaining the load rate of the second power facility after expansion is similar to the above formula (2), and will not be repeated in the embodiments of the present application.

[0101] When the load state of the second power facility after expansion is a light load state or a balanced state, that is, when it is impossible to make the load rate of the second power facility less than 80% by connecting to the first power facility, the load rate can be reduced to below 80% by expanding the second power facility that is allowed to be expanded; when the load state of the second power facility after expansion is an overload state, that is, when it is impossible to make the load rate of the second power facility less than 80% by connecting to the first power facility, it is impossible to reduce the load rate to below 80% by expanding the second power facility that is allowed to be expanded, then it is confirmed that the second power facility will not be expanded, but the center point position will be used as the new power facility site, and a plan is formed and stored in the plan list.

[0102] Exemplarily, taking the expansion of the second power facility as an example, that is, expanding a main transformer of the same model as other main transformers in the power facility, it is equivalent to spreading the original load. The original load rate of the main transformer is 100%, and the load rate of the two main transformers after the expansion is 50%, which satisfies the requirement of reducing the load rate to below 80% by expanding the second power facility that is allowed to be expanded; if the original load rates of the two main transformers were both 120%, after expanding one main transformer, the load rates of each main transformer become 80%, and the second power facility is still in an overloaded state, which does not meet the requirement of reducing the load rate to below 80% by expanding the second power facility that is allowed to be expanded; wherein, main transformer is the abbreviation of main transformer.

[0103] In the embodiment of the present application, by comprehensively considering the population density information and the power facility location information, it is determined whether the second power facility can be expanded, and based on the load status of the second power facility after the expansion, it is confirmed whether to expand the second power facility or to use the center point location as the new power facility site, thereby reducing the cost of power facility planning and improving the accuracy of power facility planning.

[0104] In one embodiment, the method further comprises:

[0105] When it is confirmed that there is a preset site in the planning area;

[0106] If the load status of the first power facility after connection is overloaded, the first power facility does not exist in the planning area, the load status of the second power facility after expansion is overloaded, or the second power facility is not allowed to be expanded, the preset site will be used as the new site for the power facility.

[0107] It should be noted that the preset site selection can be a site selection planned by the user according to actual conditions, and will not be elaborated in the embodiments of the present application.

[0108] Specifically, when it is confirmed that there is a preset site in the planning area, if it is impossible to make the load rate of the second power facility less than 80% by connecting to the first power facility, or the first power facility does not exist in the planning area, or it is impossible to reduce its load rate to below 80% by expanding the second power facility that is allowed to be expanded, or the second power facility is not allowed to be expanded, the preset site will be used as the new power facility site, and a plan will be formed and stored in the plan list.

[0109] It should be noted that the power facility planning method provided in the embodiment of the present application gives priority to connecting 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 below 80%, and then considers expanding the second power facility that is allowed to be expanded to reduce the load rate of the second power facility to below 80%, and finally reduces the load rate of the second power facility to below 80% by re-presetting the site for building a new power facility. If the above situations cannot reduce the load rate of the second power facility to below 80%, the center point position is used as the new power facility site, and a plan is formed and stored in the plan list.

[0110] Exemplarily, the computer device can also output all the solution lists in a unified data and graphic file, organize users to sort out the solution list, and select the best solution from it. Furthermore, customized site selection can be performed through other requirements and constraints to meet site selection requirements in different scenarios, and is not limited to the methods mentioned in the embodiments of this application.

[0111] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0112] Based on the same inventive concept, the embodiment of the present application also provides a power facility planning and design device for implementing the power facility planning and design method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded 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 above, and will not be repeated here.

[0113] In an exemplary embodiment, Figure 2 As shown, a power facility planning and design device 200 is provided, and the device 200 includes:

[0114] The prediction module 201 is used to obtain historical operation data of the alternative power facilities in the preset area, and predict the power demand of the alternative power facilities based on the historical operation data to obtain the predicted value of the power demand of the alternative power facilities; wherein the load state of the alternative power facilities is a non-full load state;

[0115] A division module 202 is used to determine the load information corresponding to the candidate power facilities according to the maximum load and the predicted value of the electric energy demand of the candidate power facilities, 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] The area determination module 203 is used to calculate the center point position corresponding to the position of each second power facility, and determine the planning area based on the center point position, where the planning area is a circular area with the center point position as the center and a preset distance as the radius;

[0117] The planning module 204 is used to connect the first power facility in the planning area to any second power facility in the planning area if there is a first power facility in the planning area, and re-acquire 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 use the center point as the new power facility site selection;

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

[0119] In one embodiment, the prediction module 201 is further used to obtain line information between the primary power facilities and the secondary power facilities deployed in the preset area, wherein the operating current corresponding to the primary power facilities is greater than the operating current corresponding to the secondary power facilities;

[0120] Based on the line information, the power data corresponding to the secondary power facilities is determined, and the alternative power facilities are selected from each secondary power facility according to the power data.

[0121] In one embodiment, the secondary power facility includes multiple main transformers, and the power data includes an annual total power supply and a maximum load value; the prediction module 201 is also used to determine the load state of the secondary power facility based on the annual total power supply and the maximum load value. If the load state of the secondary power facility is not fully loaded, the secondary power facility is confirmed as an alternative power facility.

[0122] In one embodiment, the prediction module 201 is also used to obtain the expected growth rate and average growth rate of the national economy;

[0123] Determine the growth rate of electricity demand based on historical operating data, and obtain the electricity elasticity coefficient based on the average growth rate and the growth rate of electricity demand;

[0124] The electricity demand of alternative power facilities is predicted based on the expected growth rate, power elasticity coefficient and historical operating data to obtain the predicted value of electricity demand.

[0125] In one embodiment, the planning module 204 is further used to obtain the power demand corresponding to the first power facility after access based on the power demand corresponding to the first power facility before access and the power demand corresponding to the second power facility to be accessed;

[0126] 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.

[0127] In one embodiment, the device 200 further includes an expansion module, which is used to confirm 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 includes population density information and power facility location information;

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

[0129] When the load status of the second power facility after expansion is light load or balanced, it is confirmed that the second power facility will be expanded; when the load status of the second power facility after expansion is overload, it is confirmed that the second power facility will not be expanded, and the center point position will be used as the new power facility site.

[0130] In one of the embodiments, the apparatus 200 further includes a preset site selection module, which is used to confirm that there is a preset site selection in the planning area;

[0131] If the load status of the first power facility after connection is overloaded, the first power facility does not exist in the planning area, the load status of the second power facility after expansion is overloaded, or the second power facility is not allowed to be expanded, the preset site will be used as the new site for the power facility.

[0132] Each module in the above-mentioned power facility planning and design device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0133] In an exemplary embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 3As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. 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. The processor of the computer device is used to provide computing and control capabilities. 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 operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be realized through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, a method for planning and designing power facilities is realized. 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, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

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

[0135] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the above-mentioned power facility planning and design method when executing the computer program.

[0136] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned power facility planning and design method is implemented.

[0137] In one embodiment, a computer program product is provided, including a computer program, which implements the above-mentioned power facility planning and design method when executed by a processor.

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

[0139] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present 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. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0140] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0141] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations 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 shall be subject to the attached claims.

Claims

1. A method for planning and designing electric power facilities, characterized in that: The method comprises: Acquire historical operation data of alternative power facilities in a preset area, predict the power demand of the alternative power facilities based on the historical operation data, and obtain a predicted value of the power demand of the alternative power facilities; wherein the load state of the alternative power facilities is a non-full load state; Determine the load information corresponding to the alternative power facilities according to the maximum load of the alternative power facilities and the predicted value of the electric energy demand, 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; 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; If the first power facility exists in the planned area, the first power facility in the planned area is connected to any of the second power facilities in the planned area, and the load state of the first power facility after the connection is reacquired; when the load state of the first power facility after the connection is a light load state or a balanced state, the current connection state is maintained; when the load state of the first power facility after the connection is an overload state, the connection between the first power facility and the second power facility is disconnected, and the center point position is used as the new power facility site selection; If the first power facility does not exist in the planned area, the center point position is used as the new power facility site.

2. The method according to claim 1, characterized in that: Before obtaining the historical operation data of the candidate power facilities in the preset area, the method further includes: Acquire line information between the primary power facilities and the secondary power facilities deployed in the preset area, wherein the operating current corresponding to the primary power facilities is greater than the operating current corresponding to the secondary power facilities; Based on the line information, the power data corresponding to the secondary power facilities are determined, and the candidate power facilities are selected from each of the secondary power facilities according to the power data.

3. The method according to claim 2, characterized in that The secondary power facility includes a plurality of main transformers, and the power data includes the annual total power supply and the maximum load value; The selecting the candidate power facility from each of the secondary power facilities according to the power data comprises: The load state of the secondary power facility is determined based on the annual total power supply and the maximum load value. If the load state of the secondary power facility is not fully loaded, the secondary power facility is confirmed as the alternative power facility.

4. The method according to claim 1, characterized in that: The step of predicting the power demand of the alternative power facility according to the historical operation data to obtain a predicted value of the power demand of the alternative power facility includes: Obtain the expected growth rate and average growth rate of the national economy; Determine the power demand growth rate according to the historical operation data, and obtain the power elasticity coefficient based on the average growth rate and the power demand growth rate; The power demand of the alternative power facility is predicted according to the expected growth rate, the power elasticity coefficient and the historical operation data to obtain the power demand prediction value.

5. The method according to claim 1, characterized in that The re-acquiring the load state of the first electric power facility after access includes: Obtaining the power demand corresponding to the first power facility after access based on the power demand corresponding to the first power facility before access and the power demand corresponding to the second power facility to be accessed; Based on the power demand corresponding to the first power facility after the connection and the maximum load of the first power facility, the load state of the first power facility after the connection is determined.

6. The method according to claim 1, characterized in that The method further comprises: When confirming that the second electric power facility in the planned area is allowed to be expanded according to the map information of the planned area, wherein the map information includes population density information and electric power facility location information; If the load state of the first power facility after access is an overload state, or the first power facility does not exist in the planning area, then obtaining the load state of the second power facility after expansion; When the load status of the second power facility after expansion is a light load status or a balanced status, it is confirmed that the second power facility will be expanded; when the load status of the second power facility after expansion is an overload status, it is confirmed that the second power facility will not be expanded, and the center point position will be used as the new power facility site.

7. The method according to claim 6, characterized in that The method further comprises: When it is confirmed that there is a preset site in the planning area; If the load status of the first power facility after connection is overloaded, the first power facility does not exist in the planned area, the load status of the second power facility after expansion is overloaded, or the second power facility is not allowed to be expanded, the preset site will be used as the new site of the power facility.

8. A power facility planning and design device, characterized in that: The device comprises: A prediction module, used to obtain historical operation data of alternative power facilities in a preset area, predict the power demand of the alternative power facilities based on the historical operation data, and obtain a predicted value of the power demand of the alternative power facilities; wherein the load state of the alternative power facilities is a non-full load state; a division module, configured to determine the load information corresponding to the alternative power facilities according to the maximum load of the alternative power facilities and the predicted value of the electric energy demand, and to 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; An area determination module, used for calculating the center point position corresponding to the position of each second electric 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; A planning module, for connecting the first power facility in the planning area to any of the second power facilities in the planning area if the first power facility exists in the planning area, and reacquiring the load status of the first power facility after the connection; when the load status of the first power facility after the connection is a light load status or a balanced status, maintaining the current connection status; when the load status of the first power facility after the connection is an overload status, disconnecting the connection between the first power facility and the second power facility, and selecting the center point as the new power facility site; The planning module is further configured to select the center point as a new site for the power facility if the first power facility does not exist in the planning area.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

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

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