CN117974220A

CN117974220A - Method, device, equipment and medium for locating and sizing power mutual-aid equipment of power distribution network

Info

Publication number: CN117974220A
Application number: CN202410157601.7A
Authority: CN
Inventors: 李志华; 曹德发; 李延宾; 魏存良; 韩雄辉; 张锦欣; 李继房; 江伟奇
Original assignee: Guangdong Power Grid Co Ltd; Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Meizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2024-02-02
Filing date: 2024-02-02
Publication date: 2024-05-03

Abstract

The embodiment of the invention discloses a method, a device, equipment and a medium for locating and sizing power mutual-aid equipment of a power distribution network. The method comprises the steps of determining peak section average load rates of all distribution transformers according to operation data information of the distribution transformers in a target area; dividing each distribution transformer into a heavy-load distribution transformer information set and a light-load distribution transformer information set according to the peak section average load rate and a preset load rate threshold; constructing a connection matrix between the heavy-load distribution transformer in the heavy-load distribution transformer information concentration and the light-load distribution transformer in the light-load distribution transformer information concentration; and determining the most preferred address position of the power mutual-aid equipment based on a traversing record result of the connection matrix, wherein the traversing record result comprises the mutual-aid power and the target cost price corresponding to each traversing of the connection matrix. The embodiment of the invention can solve the problems of capacity mismatch and high construction cost in the prior art, reduce the load rate of a heavy load platform area, improve the load rate of a light load platform area and reduce the line loss.

Description

Method, device, equipment and medium for locating and sizing power mutual-aid equipment of power distribution network

Technical Field

The invention relates to the technical field of planning and operation of power systems, in particular to a method, a device, equipment and a medium for locating and sizing power mutual equipment of a power distribution network.

Background

The heavy overload of the transformer area can cause a series of problems such as low voltage, increased line loss, influence on power supply reliability and the like, and the problems are usually solved by adopting a capacity-increasing mode, but hysteresis exists in planning design and investment construction of a distribution network, and capacity-increasing requirements cannot be responded in time sometimes.

In the scene that a plurality of heavy load distribution transformers and light load distribution transformers exist in a certain power distribution area, how to plan and design reasonable power mutual equipment site selection and volume fixing schemes is a difficult point. If only construction cost is considered, and the shortest connection distance is used as a first target, power mutual-aid equipment is installed between heavy-load distribution transformer and light-load distribution transformer closest to the heavy-load distribution transformer, and capacity mismatch is easy to occur. If the capacity matching priority is considered, the distance between the heavy load matching transformer and the light load matching transformer with the highest matching degree can be far, so that the construction cost is high. Therefore, a technical method is needed, factors such as construction cost, mutual power and the like are comprehensively considered, and a power mutual equipment site selection and volume determination scheme is determined in the regional distribution network.

Disclosure of Invention

In view of the above, the invention provides a method, a device, equipment and a medium for locating and sizing power mutual-aid equipment of a power distribution network, which can comprehensively consider construction cost and mutual-aid power factors and solve the problems of capacity mismatch and high construction cost in the prior art.

According to an aspect of the present invention, an embodiment of the present invention provides a method for locating and sizing power mutual equipment of a power distribution network, where the method includes:

Acquiring attribute information and operation data information of distribution transformers in a preselected target area, and determining peak section average load rates of the distribution transformers in preset peak section time periods respectively according to the operation data information;

Dividing each distribution transformer into a heavy-load distribution transformer information set and a light-load distribution transformer information set according to the average load rate of each peak segment and a preset load rate threshold;

constructing a connection matrix between the heavy-load distribution transformer in the heavy-load distribution transformer information concentration and the light-load distribution transformer in the light-load distribution transformer information concentration;

Determining the optimal location for installing power mutual-aid equipment between the heavy-load distribution transformer and the light-load distribution transformer based on the traversing record result of the connection matrix; the traversal record result comprises the mutual power and the target cost price corresponding to each traversal of the connection matrix, wherein the mutual power represents the capacity of the power mutual equipment.

According to another aspect of the present invention, an embodiment of the present invention further provides an apparatus for locating and sizing power mutual power equipment of a power distribution network, where the apparatus includes:

The acquisition module is used for acquiring attribute information and operation data information of the distribution transformers in the preselected target area and determining peak section average load rates of the distribution transformers in preset peak section time periods respectively according to the operation data information;

The dividing module is used for dividing the distribution transformers into a heavy-load distribution transformer information set and a light-load distribution transformer information set according to the average load rate of the peak sections and a preset load rate threshold;

the construction module is used for constructing a connection matrix between the heavy-load distribution transformer in the heavy-load distribution transformer information set and the light-load distribution transformer in the light-load distribution transformer information set;

the address determining module is used for determining the optimal address position for installing the power mutual-aid equipment between the heavy-load distribution transformer and the light-load distribution transformer based on the traversing record result of the connection matrix; and the traversal record result comprises the mutual power and the target cost price corresponding to each traversal of the connection matrix, wherein the mutual power represents the capacity of the power mutual equipment.

According to another aspect of the present invention, an embodiment of the present invention further provides an electronic device, including:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor, so that the at least one processor can execute the method for locating and sizing the power distribution network power mutual equipment according to any embodiment of the invention.

According to another aspect of the present invention, an embodiment of the present invention further provides a computer readable storage medium, where the computer readable storage medium stores computer instructions, where the computer instructions are configured to enable, when executed by a processor, the method for locating and sizing the power distribution network power mutual equipment according to any one of the embodiments of the present invention.

According to the technical scheme, the peak section average load rate of each distribution transformer is determined through the operation data information of the distribution transformers in the target area, so that each distribution transformer is divided into a heavy-load distribution transformer information set and a light-load distribution transformer information set according to the peak section average load rate and a preset load rate threshold value, the distribution transformer load data is scaled in the time dimension through determining the peak section average load rate of each distribution transformer, only representative data of the peak section average load is taken as the basis for matching the power mutual capacity, the calculation speed is improved, and the time dimension of the load data is actively reduced to save calculation resources; on the basis, a connection matrix between the heavy-load distribution transformer and the light-load distribution transformer in the heavy-load distribution transformer information concentration is constructed, and the site selection position of the power mutual-aid equipment is determined based on the mutual-aid power and the target cost price corresponding to each traversal connection matrix contained in the traversal record result of the connection matrix.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flow chart of a method for locating and sizing a power distribution network power mutual equipment according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method for locating and sizing power mutual equipment of another power distribution network according to an embodiment of the present invention;

Fig. 3 is a block diagram of a location and volume determining device of a power mutual equipment of a power distribution network according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In an embodiment, fig. 1 is a flowchart of a method for locating and sizing a power distribution network power mutual device according to an embodiment of the present invention, where the method may be performed by a device for locating and sizing a power distribution network power mutual device installed between a heavy load distribution transformer and a light load distribution transformer, where the device for locating and sizing a power distribution network power mutual device may be implemented in hardware and/or software, and a system for locating and sizing a power distribution network power mutual device may be configured in an electronic device.

As shown in fig. 1, the method for locating and sizing the power mutual-aid device in the embodiment specifically includes the following steps:

S110, acquiring attribute information and operation data information of distribution transformers in a preselected target area, and determining peak section average load rates of the distribution transformers in preset peak section time periods according to the operation data information.

Wherein the target area refers to the area selected by the installation power mutual aid device. The preset peak period may be understood as a peak period divided in advance, and of course, a valley period and a flat period may be included in addition to the peak period.

In this embodiment, the distribution transformer attribute information is related parameter information of the distribution transformer, where each distribution transformer attribute information at least includes a number, a capacity and position information of the distribution transformer, and each distribution transformer corresponds to a unique number; the operation data information is the related data information generated in the operation process of the distribution transformer, and at least comprises the active power and the reactive power of the distribution transformer. The operational data information time range may be several days, at least 1 day. It should be noted that, there are a plurality of distribution transformers in the target area, and each distribution transformer corresponds to corresponding attribute information and operation data information.

In this embodiment, a target area is selected, attribute information and operation data information corresponding to each distribution transformer in the preselected target area can be obtained, the apparent power of each time point is calculated according to active power and reactive power in the operation data information, time division of peak sections, flat sections and valley sections is performed for 24 hours a day, apparent power values corresponding to each time point in the peak section time period are counted to obtain average apparent power values of the peak section time period, and peak section average load rates of the distribution transformers in the preset peak section time period are determined based on the capacity and average apparent power values of the distribution transformers; in some embodiments, the peak average load ratio of each distribution transformer during the peak period may also be determined by other methods, and the present embodiment is not limited herein.

And S120, dividing each distribution transformer into a heavy-load distribution transformer information set and a light-load distribution transformer information set according to the average load rate of each peak section and a preset load rate threshold.

The preset load rate threshold may be understood as a preset load rate limit value, in this embodiment, the preset load rate threshold may be set by itself according to an actual service requirement, which is not limited herein, and exemplary, the preset load rate threshold may be set to 65% or 80%.

In this embodiment, when the power transformer is used as output, the power transformer generally works at about 60% of load, and when the load is less than 30%, the phenomenon of "large maraging trolley" of the distribution transformer is caused, and when the load is greater than 70%, the phenomenon of heavy load and overload of the distribution transformer is caused, namely, the heavy load distribution transformer is caused. The heavy-load transformer is a transformer with normal load of more than 80% of rated capacity. The light load means that the current load power is 30% or less of the full load power. In an embodiment, the heavy-load distribution transformer information set at least includes the number, the capacity, the position information and the first peak section average load rate of the heavy-load distribution transformer corresponding to each heavy-load distribution transformer respectively; the light-load distribution transformer information set comprises the number, the capacity, the position information and the second peak section average load rate of the light-load distribution transformers respectively corresponding to the light-load distribution transformers.

In this embodiment, each distribution transformer may be divided into a heavy-load distribution transformer information set and a light-load distribution transformer information set according to the average load rate of each peak segment and a preset load rate threshold, and specifically, when the average load rate of the peak segment is greater than or equal to the preset load rate threshold, it may be determined that the distribution transformer corresponding to the average load rate of the peak segment meets the standard of the heavy-load distribution transformer, and the distribution transformer corresponding to the average load rate of the peak segment is divided into the heavy-load distribution transformer information set; and under the condition that the peak section average load rate is smaller than the preset load rate threshold value, determining that the distribution transformer corresponding to the peak section average load rate meets the standard of the light-load distribution transformer, and dividing the distribution transformer corresponding to the peak section average load rate into the light-load distribution transformer information set.

S130, constructing a connection matrix between the heavy-load distribution transformer in the heavy-load distribution transformer information concentration and the light-load distribution transformer in the light-load distribution transformer information concentration.

The connection matrix is understood to be a connection relation matrix between the heavy-load distribution transformer and the light-load distribution transformer. It should be noted that the connection matrix characterizes the site location of the power mutual equipment installed between the heavy load distribution transformer and the light load distribution transformer.

In one embodiment, the connection matrix is formulated as: Wherein n is the number of heavy-load distribution transformers, and m is the number of light-load distribution transformers; wherein a _ij = 0 or 1; when a _ij =0, the ith heavy-load distribution transformer is not connected with the jth light-load distribution transformer, namely power mutual-aid equipment is not established; when a _ij =1, it represents that the ith heavy-load distribution transformer is connected with the jth light-load distribution transformer, that is, a power mutual-aid device is established, which has one element of 1 in the row and column.

In this embodiment, a connection relation matrix between the heavy-load distribution transformer and the light-load distribution transformer in the heavy-load distribution transformer information set may be constructed according to the number of the light-load distribution transformers and the number of the heavy-load distribution transformers in the target area, the connection matrix may be initialized, and the initialized result may include a plurality of initialized target connection matrices.

S140, determining the optimal site location for installing power mutual-aid equipment between the heavy-load distribution transformer and the light-load distribution transformer based on the traversing record result of the connection matrix; the traversal record result comprises the mutual power and the target cost price corresponding to each traversal of the connection matrix, and the mutual power represents the capacity of the power mutual equipment.

A power mutual aid is understood to mean, among other things, a device which is installed between a heavy-load distribution transformer and a light-load distribution transformer.

In this embodiment, the location of the power mutual aid device installed between the heavy-load distribution transformer and the light-load distribution transformer may be determined based on the result of the traversal record of the connection matrix, that is, the corresponding mutual aid power and the target cost price are calculated respectively for all possible results of the initialization of the connection matrix, so as to select the connection matrix with the maximum mutual aid power from the calculated values, as the location scheme of the power mutual aid device, that is, the optimal location of the power mutual aid device installed between the heavy-load distribution transformer and the light-load distribution transformer. It can be understood that all possible results of the connection matrix between the heavy-load distribution transformer and the light-load distribution transformer are found out firstly, namely all site selection positions of the power mutual-aid equipment possibly installed between the heavy-load distribution transformer and the light-load distribution transformer are found out, on the basis, the optimal site selection positions of the power mutual-aid equipment installed between the heavy-load distribution transformer and the light-load distribution transformer are determined by calculating to obtain the power mutual-aid and target cost price of the connection matrix corresponding to each possible result; specifically, initializing a connection matrix to obtain an initialized target connection matrix, taking the target connection matrix as a current connection matrix, according to the current connection matrix, the capacity in a heavy load distribution transformer information set, the average load rate of a first peak section of the heavy load distribution transformer, the capacity in a light load distribution transformer information set, the average load rate of a second peak section of the light load distribution transformer and a preset load rate threshold value, determining the current mutual power between the heavy load distribution transformer and the light load distribution transformer, determining the unit price of power mutual equipment in preset cost price, the unit price of accessory unit price of the power mutual equipment, the unit price of preset connecting cable and auxiliary material length unit price, and the target cost of the power mutual equipment installed between the heavy load distribution transformer i and the light load distribution transformer j, recording the current connection matrix and the current mutual power under the condition that the target cost price meets the preset cost threshold value, taking the current connection matrix and the current mutual power as a primary traversal record result, selecting the next initial connection matrix from all possible initial connection matrices, and connecting the next initial connection matrix as a final traversal result, and connecting the next step is repeated until the initial connection matrix is completed, and the current connection matrix is obtained.

According to the technical scheme, the peak section average load rate of each distribution transformer is determined through the operation data information of the distribution transformers in the target area, so that each distribution transformer is divided into a heavy-load distribution transformer information set and a light-load distribution transformer information set according to the peak section average load rate and a preset load rate threshold value, the distribution transformer load data is scaled in the time dimension through determining the peak section average load rate of each distribution transformer, only representative data of the peak section average load is taken as the basis for matching the power mutual capacity, the calculation speed is improved, and the time dimension of the load data is actively reduced to save calculation resources; on the basis, a connection matrix between the heavy-load distribution transformer and the light-load distribution transformer in the heavy-load distribution transformer information set is constructed, and the site selection position of the power mutual aid equipment is determined based on the mutual aid power and the target cost price corresponding to each traversal connection matrix contained in the traversal record result of the connection matrix.

In an embodiment, fig. 2 is a flowchart of another method for locating and sizing power-distribution network power-mutual equipment according to an embodiment of the present invention, where, based on the above embodiments, peak section average load rates of each distribution transformer in a preset peak section time period are determined according to operation data information; dividing each distribution transformer into a heavy-load distribution transformer information set and a light-load distribution transformer information set according to the average load rate of each peak section and a preset load rate threshold value, and determining the optimal site position for installing power mutual-aid equipment between the heavy-load distribution transformer and the light-load distribution transformer based on the traversing record result of the connection matrix to further refine.

As shown in fig. 2, the method for locating and sizing the power mutual equipment of the power distribution network in this embodiment specifically may include the following steps:

S210, acquiring attribute information and operation data information of a distribution transformer in a preselected target area, and extracting active power and reactive power in the corresponding operation data information of the distribution transformer at each time point.

In this embodiment, attribute information and operation data information of the distribution transformer in the preselected target area are acquired, and active power and reactive power in the operation data information corresponding to each time point of the distribution transformer are extracted

S220, extracting active power and reactive power in the operation data information corresponding to each distribution transformer at each time point, and determining first apparent power values corresponding to the active power and the reactive power respectively.

In this embodiment, active power and reactive power in the operation data information corresponding to each distribution transformer are extracted, and according to the active power and reactive power of the distribution transformer in the peak period, first apparent power values corresponding to preset time points in the peak period are determined. Specifically, the apparent power calculation formula may be expressed as: Where P refers to the active power of the distribution transformer and Q refers to the reactive power of the distribution transformer.

S230, dividing each time point into a peak period, a valley period and a flat period, and determining an average apparent power value in the peak period according to the first apparent power value.

In this embodiment, the time period is divided for the preset time point to obtain a corresponding peak period, valley period and flat period. The peak period, the valley period and the flat period in this embodiment can be set in a self-defined manner according to actual conditions and service requirements, and the embodiment is not limited herein, and exemplary default values are 10-12 points and 14-19 points of the peak period, 0-8 points of the valley period, and the rest is the flat period. An average apparent power value over a peak period of time may be determined from each of the first apparent power values. Specifically, the first apparent power values corresponding to the time points in the peak period are summed, and then the ratio of the sum result to the total time point is calculated to obtain the average apparent power value in the peak period.

S240, determining peak section average load rates corresponding to the distribution transformer according to the average apparent power value and the capacity of the distribution transformer.

In this embodiment, the peak section average load rate corresponding to the distribution transformer may be determined according to the average apparent power value and the capacity of the distribution transformer. Specifically, a solution formula of the peak section average load ratio can be expressed as: Where S is denoted as the average apparent power value of the distribution transformer and Cap is denoted as the capacity of the distribution transformer.

S250, under the condition that the peak section average load rate is larger than or equal to a preset load rate threshold value, determining that the distribution transformer corresponding to the peak section average load rate meets the standard of the heavy-load distribution transformer, and dividing the distribution transformer corresponding to the peak section average load rate into information sets of the heavy-load distribution transformer.

In this embodiment, when the peak average load rate is greater than or equal to the preset load rate threshold, it is determined that the distribution transformer corresponding to the peak average load rate meets the criteria of the heavy-load distribution transformer, and the distribution transformer corresponding to the peak average load rate is divided into the heavy-load distribution transformer information sets. It can be understood that the distribution transformers in the target area are added to the heavy-load distribution transformer information set LI _trans and the other are added to the light-load distribution transformer information set LJ _trans under the following conditions, where the conditions are expressed as: LFPeak _i≥LF_th, wherein LFPeak _i is denoted as peak section average load ratio of the ith distribution transformer, and LF _th is denoted as preset load ratio threshold.

In this embodiment, the heavy-duty distribution transformer information set may be expressed as: LI _trans＝[tans₁,trans₂,trans₃…,trans_n ]; wherein trans _i＝ID_i,Cap_i,Loc_i,LFPeak_i, wherein ID _i is denoted as the number of the i-th heavy-duty distribution transformer, loc _i＝(lat_i,lon_i),lat_i is denoted as the latitude coordinate of the i-th heavy-duty distribution transformer, and lon _i is denoted as the longitude coordinate of the i-th heavy-duty distribution transformer; cap _i is represented as the capacity of the ith heavy-duty distribution transformer, respectively; LFPeak _i denotes the first peak section average load ratio of the ith heavy-duty distribution transformer; LF _th is denoted as a preset load factor threshold.

And S260, under the condition that the peak section average load rate is smaller than a preset load rate threshold value, determining that the distribution transformer corresponding to the peak section average load rate meets the standard of the light-load distribution transformer, and dividing the distribution transformer corresponding to the peak section average load rate into the light-load distribution transformer information set.

In this embodiment, when the peak average load rate is smaller than the preset load rate threshold, it is determined that the distribution transformer corresponding to the peak average load rate meets the standard of the light-load distribution transformer, and the distribution transformer corresponding to the peak average load rate is divided into the light-load distribution transformer information sets.

In this embodiment, the heavy-duty distribution transformer information set may be expressed as: LJ _trans＝[tans₁,trans₂,trans₃...,trans_m ]; wherein trans _j＝ID_j,Cap_j,Loc_j,LFPeak_j,ID_j is denoted as the number of the j-th light-load distribution transformer; loc _j＝(lat_j,lon_j),lat_j is represented as the dimensional coordinate of the j-th light-load distribution transformer, and lon _j is represented as the longitude coordinate of the j-th light-load distribution transformer; cap _j is represented as the capacity of the jth light-load distribution transformer; LFPeak _j is the second peak section average load ratio of the jth light load distribution transformer.

S270, constructing a connection matrix between the heavy-load distribution transformer in the heavy-load distribution transformer information set and the light-load distribution transformer in the light-load distribution transformer information set.

S280, initializing the connection matrix to obtain at least two initialized connection matrices, randomly selecting one target connection matrix from the at least two initialized connection matrices, and taking the target connection matrix as a current connection matrix.

The initialization connection matrix characterizes the site selection position of the power mutual aid equipment installed between the heavy-load distribution transformer and the light-load distribution transformer.

In this embodiment, the connection matrix may be initialized, where the initialized result may include a plurality of initialized target connection matrices, and it may be understood that all possible results of the connection matrix may be initialized, and corresponding cost price and mutual power may be calculated for all possible results of the connection matrix. In this embodiment, the connection matrix is initialized, and the initialized target connection matrix is obtained and is used as the current connection matrix.

S290, determining the current mutual power between the heavy-load distribution transformer and the light-load distribution transformer according to the current connection matrix, the capacity in the heavy-load distribution transformer information set, the average load rate of the first peak section of the heavy-load distribution transformer, the capacity in the light-load distribution transformer information set, the average load rate of the second peak section of the light-load distribution transformer and a preset load rate threshold.

In this embodiment, the current mutual power between the heavy-load distribution transformer and the light-load distribution transformer is determined according to the current connection matrix, the capacity in the heavy-load distribution transformer information set, the first peak average load rate of the heavy-load distribution transformer, the capacity in the light-load distribution transformer information set, the second peak average load rate of the light-load distribution transformer, and the preset load rate threshold. Specifically, the current mutual power is expressed as: Wherein a _ij is represented as element ,i＝1,…,n;j＝1,…,m;min(Cap_i(LFPeak_i-LF_th),Cap_j(LF_th-LFPeak_j)) in the connection matrix as a minimum mutual capacity condition, wherein Cap _i and Cap _j are represented as a first capacity of the heavy-load distribution transformer and a second capacity of the light-load distribution transformer, respectively; LFPeak _i and LFPeak _j are respectively denoted as a first average load ratio for a heavy-load distribution transformer and a second average load ratio for a light-load distribution transformer; LF _th is denoted as a preset load factor threshold.

S2100, determining a first cost price according to unit price of the power mutual-aid equipment, the connection matrix and current mutual-aid power in the preset cost price.

The unit price of the power mutual aid device can be set by itself, and the unit price P _unit (per kVA) =0.3 ten thousand yuan of the power mutual aid device is exemplary.

In this embodiment, according to the unit price P _unit, the connection matrix and the current mutual power of the power mutual device in the preset cost price, the first cost price is determined, specifically, the first cost price is expressed as: Wherein P _unit is denoted as the unit price of the power mutual appliance; z is denoted as the current mutual power.

S2110, determining a second cost price according to the fitting unit price and the current connection matrix of the power mutual equipment.

The unit price of the fitting set of the power mutual aid device can be set according to requirements, and the unit price of the fitting set of the power mutual aid device is exemplified by P _fixed (each set) =2 ten thousand yuan.

In this embodiment, the second cost price is determined based on the unit price of the power mutual device's kit P _fixed and the current connection matrix. Specifically, the second cost price is formulated as: Wherein P _fixed represents a power mutual equipment accessory unit price.

S2120, determining the distance between the heavy load distribution transformer i and the light load distribution transformer j according to a preset distance formula, and determining a third cost according to the distance, the preset connection cable and auxiliary material length unit price and the current connection matrix.

In this embodiment, the distance between the heavy load distribution transformer i and the light load distribution transformer j is determined according to a preset distance formula. Specifically, the preset distance formula is expressed as:

Wherein r is the earth radius, Δlat=lat _i-lat_j, which is the dimension difference between the heavy load distribution transformer i and the light load distribution transformer j; lat _i represents dimension information of the heavy-load distribution transformer i; lat _j represents dimension information of the light-load distribution transformer j; here, Δlon=lon _i-lon_j denotes a longitude difference between the heavy load distribution transformer i and the light load distribution transformer j, lon _i denotes longitude information of the heavy load distribution transformer i, and lon _j denotes longitude information of the light load distribution transformer j.

The preset length unit price of the connecting cable and the auxiliary material can be set automatically according to requirements, and the length unit price of the connecting cable and the auxiliary material is P _cable (per meter) =0.04 ten thousand yuan.

In this embodiment, the third cost price is formulated as: Wherein P _cable is represented as the length unit price of the connecting cable and the auxiliary material; d _ij is the distance between the heavy load distribution transformer i and the light load distribution transformer j;

S2130, determining a target cost price for installing power mutual equipment between the heavy-load distribution transformer and the light-load distribution transformer according to the first cost price, the second cost price and the third cost price.

The preset cost threshold may be understood as a preset cost Budget, and the preset cost threshold is, for example, hedge=100 ten thousand yuan. The target cost price is the real cost price of the finally obtained installation power mutual-aid equipment.

In this embodiment, the target cost price for installing the power mutual-saving device between the heavy-load distribution transformer and the light-load distribution transformer may be determined according to the first cost price, the second cost price, and the third cost price.

S2140, judging whether the target cost price meets a preset cost price threshold, if so, executing S2150; if not, S2160 is performed.

In this embodiment, whether the target cost price meets a preset cost price threshold value is determined, if yes, the current connection matrix and the current mutual-aid power are recorded, the current connection matrix and the current mutual-aid power are used as a primary traversal recording result, the traversal recording result is stored, and the connection matrix with the maximum mutual-aid power is selected from the traversal recording results and used as the site selection position of the power mutual-aid device; if not, selecting a next connection matrix from the at least two initialized connection matrices, taking the next connection matrix as a current connection matrix, and returning to the step of S290 until all the initialized connection matrices are traversed, which can be understood as that whether the next connection matrix with non-repeated initialization exists is continuously judged, if so, taking the next connection matrix as the current connection matrix, and returning to the step of S290 until the next connection matrix with non-repeated initialization does not exist.

S2150, recording the current connection matrix and the current mutual-aid power, taking the current connection matrix and the current mutual-aid power as a one-time traversal record result, and storing the traversal record result, and selecting the connection matrix with the maximum mutual-aid power from the traversal record results as the most preferable address location of the power mutual-aid equipment.

In this embodiment, under the condition that the target cost price meets the preset cost price threshold, recording the current connection matrix and the current mutual-aid power as a primary traversal recording result, and storing the traversal recording result, and selecting the connection matrix with the maximum mutual-aid power from the traversal recording result as the site selection position of the power mutual-aid device.

S2160, selecting a next connection matrix from at least two initialized connection matrices, taking the next connection matrix as a current connection matrix, and returning to the step S290 until all the initialized connection matrices are traversed.

In this embodiment, if the target cost price does not meet the preset cost price threshold, continuously determining whether there is a next connection matrix whose initialization is not repeated, if so, using the next connection matrix as the current connection matrix, and returning to step S290 until there is no next connection matrix whose initialization is not repeated.

In this embodiment, a next connection matrix is selected from the at least two initialized connection matrices, the next connection matrix is used as a current connection matrix, and the step S290 is returned until all initialized connection matrices are traversed.

According to the technical scheme, the corresponding peak period time period, valley period time period and average period time period are obtained by dividing the preset time points into the time periods, the first apparent power values respectively corresponding to the preset time points in the peak period time period are determined according to the active power and the reactive power of the distribution transformer in the peak period time period, the average apparent power value in the peak period time period is determined according to the first apparent power values, so that the peak average load rate corresponding to the distribution transformer is determined according to the average apparent power value and the capacity of the distribution transformer, only representative data of the peak average load can be taken as the basis for matching the power complementary capacity, the distribution transformer load data is scaled in the time dimension, the time dimension of the load data is actively reduced to save calculation resources, and the calculation speed is high; after a distribution transformer corresponding to the peak section average load rate is divided into a heavy-load distribution transformer information set and a light-load distribution transformer information set through the peak section average load rate and a preset load rate threshold value, a connection matrix between the heavy-load distribution transformer information set and the light-load distribution transformer in the light-load distribution transformer information set is constructed, the connection matrix is initialized, an initialized target connection matrix is obtained, the target connection matrix is used as a current connection matrix, current mutual power between the heavy-load distribution transformer and the light-load distribution transformer is determined according to the current connection matrix, the capacity in the heavy-load distribution transformer information set, the first peak section average load rate of the heavy-load distribution transformer, the second peak section average load rate of the light-load distribution transformer in the light-load distribution transformer information set and the preset load rate threshold value, determining a first cost price according to unit price, a connection matrix and current mutual power of power mutual equipment in preset cost price, determining a second cost price according to unit price of accessories of the power mutual equipment and current connection matrix, determining a third cost price according to distance, unit price of preset connection cable and auxiliary material length and current connection matrix, determining a target cost price for installing the power mutual equipment between a heavy-load distribution transformer and a light-load distribution transformer according to the first cost price, the second cost price and the third cost price, recording the current connection matrix and the current mutual power as a one-time traversal record result and saving the traversal record result under the condition that the target cost price meets a preset cost price threshold value, selecting a next initialization connection matrix from all possible initialization connection matrices as the current connection matrix, and repeating the steps until all initialized possible connection matrixes are traversed to obtain a final traversing result, selecting the connection matrix with the largest mutual power from the traversing result as the site selection position of the power mutual equipment, introducing matrixing thought, matrixing the connection relation between heavy load distribution transformer and light load distribution transformer, and obtaining the optimal regional distribution network power mutual equipment site selection scheme by only solving the optimal matrix.

For example, in order to better understand the method for locating and sizing the power mutual-aid device of the power distribution network, an embodiment of the present invention provides another method for locating and sizing the power mutual-aid device of the power distribution network, and it is assumed that the information of the distribution transformer in the target area is as follows: LI _trans＝[tans₁,trans₂,trans₃ ];

LJ_trans＝[tans₁,trans₂]。

In this embodiment, LI _trans is represented as a heavy-load distribution transformer information set, LJ _trans is represented as a light-load distribution transformer information set, and it is known that the heavy-load distribution transformer information set includes 3 heavy-load distribution transformers and the light-load distribution transformer information set includes 2 light-load distribution transformers, where the heavy-load distribution transformer information and data are as follows:

trans₁＝[123，500kVA，(116.604627,39.876518)，72％]；

trans₂＝[223，800kVA，(116.616269,39.875133)，70％]；

trans₃＝[334，1000kVA，(116.613682,39.881888)，68％]；

The light load distribution transformer information and data are as follows:

trans₁＝[56，200kVA，(116.601824,39.878732)，26％]；

trans₂＝[37，800kVA，(116.632223,39.873804)，48％]。

In this embodiment, the first term in trans ₁ is the number of the heavy-duty distribution transformer, and the second term is the capacity; the third item is coordinate information, the fourth item is peak section average load rate, and the other items are similar, and this embodiment will not be explained one by one.

The initial parameters include unit price P _unit (per kVA) for the power mutual equipment, unit price P _fixed (per set) for the power mutual equipment accessories, unit price P _cable (per meter) for the connection cable and auxiliary material length, and target cost price hedge. In an embodiment, the initial parameters are set as: monovalent P _unit (per kVA) =0.3 ten thousand yuan for the power mutual aid device; power mutual equipment accessory kit unit price P _fixed (per set) =2 ten thousand yuan; the length unit price of the connecting cable and the auxiliary material is P _cable (per meter) =0.04 ten thousand yuan; target cost price hedge=100 ten thousand yuan;

In this embodiment, based on the above-mentioned numbers corresponding to the heavy-load distribution transformer and the light-load distribution transformer, the connection matrix a constructed is as follows: />

Assume that all possible results for initializing matrix a include: in this embodiment, since the number of results of initializing the initialization matrix a is large, this embodiment is not shown one by one for ease of understanding, and only a few of them are shown as examples.

In the matrix a, the number of heavy-load distribution transformers is 3, and the number of light-load distribution transformers is 2, wherein a _ij =0 or 1; when a _ij =0, the ith heavy-load distribution transformer is not connected with the jth light-load distribution transformer; when a _ij =1, it represents that the ith heavy-load distribution transformer is connected with the jth light-load distribution transformer, and only one element in the row and column is 1. The power mutual aid equipment is a ₁₁ =1, namely, the power mutual aid equipment is installed between the heavy-load distribution transformer 1 and the light-load distribution transformer 1, and when the power mutual aid equipment is 0, the power mutual aid equipment is not installed, and the rest power mutual aid equipment is similar and is not explained one by one. Wherein, heavy overload distribution transformer 1 information: trans ₁ = [123, 500kVA, (116.604627,39.876518), 72% ]; light load distribution transformer 1 information: trans ₁ = [56, 200kVA, (116.601824,39.878732), 26% ].

Calculating mutual power z=35 kVA;

The calculation cost price p=0.3×35+2+0.04×343=26.22 ten thousand yuan;

Minimum mutual capacity condition corresponding to a _ij =1 in the connection matrix a

Min (Cap _i(LFPeak_i-LF_th),Cap_j(LF_th-LFPeak_j)) as a constant volume scheme for each power mutual aid device.

In the embodiment, the result records (since the record results are more, the present embodiment is not shown one by one, only a few of them are shown as examples) are as follows:

35kVA,26.22 ten thousand yuan; /(I) 75KVA,94.98 ten thousand yuan; /(I)40KVA,65.84 ten thousand yuan; /(I)40KVA,68.76 ten thousand yuan; /(I)30KVA,53.84 ten thousand yuan; /(I)30KVA,83.8 ten thousand yuan. Therefore, in the technology of meeting the preset cost threshold, the connection matrix with the maximum mutual power is selected from the results, and is used as the site selection position of the power mutual equipment, namely, the connection matrix/>In the prior art, the addressing scheme is that 35kVA and 40kVA capacity power mutual aid equipment is respectively arranged between a heavy-load distribution transformer trans ₁ and a light-load distribution transformer trans ₁ and between a heavy-load distribution transformer trans ₂ and a light-load distribution transformer trans ₂, so that the addressing scheme is the optimal scheme for addressing and sizing the power mutual aid equipment of the current regional distribution network.

In an embodiment, fig. 3 is a block diagram of a location and volume determining device for a power distribution network power mutual device according to an embodiment of the present invention, where the device is suitable for a situation when the location and volume determining is performed on the power distribution network power mutual device installed between a heavy load distribution transformer and a light load distribution transformer, and the device may be implemented by hardware/software. The method can be configured in electronic equipment to realize the site selection and volume determination of the power mutual equipment of the power distribution network in the embodiment of the invention.

As shown in fig. 3, the apparatus includes: the system comprises an acquisition module 310, a partitioning module 320, a relationship construction module 330 and an addressing determination module 340.

The obtaining module 310 is configured to obtain attribute information and operation data information of distribution transformers in a pre-selected target area, and determine peak section average load rates of the distribution transformers in preset peak section time periods according to the operation data information;

The dividing module 320 is configured to divide each of the distribution transformers into a heavy-load distribution transformer information set and a light-load distribution transformer information set according to the average load rate of each peak segment and a preset load rate threshold;

a relationship construction module 330, configured to construct a connection matrix between the heavy-load distribution transformer information centralized heavy-load distribution transformer and the light-load distribution transformer information centralized light-load distribution transformer;

An address determining module 340, configured to determine, based on a result of the traversal record of the connection matrix, a most preferred address location for installing the power mutual-saving device between the heavy-load distribution transformer and the light-load distribution transformer; and the traversal record result comprises the mutual power and the target cost price corresponding to each traversal of the connection matrix, wherein the mutual power represents the capacity of the power mutual equipment.

In one embodiment, the distribution transformer attribute information includes at least the number, capacity and position information of the distribution transformer;

the operation data information at least comprises active power and reactive power of the distribution transformer;

The heavy-load distribution transformer information set at least comprises the serial number, the capacity, the position information and the first peak section average load rate of the heavy-load distribution transformers respectively corresponding to the heavy-load distribution transformers; the light-load distribution transformer information set comprises the number, the capacity, the position information and the second peak section average load rate of the light-load distribution transformers respectively corresponding to the light-load distribution transformers.

In one embodiment, the acquisition module 310 includes:

the dividing unit is used for dividing the time period of the preset time point to obtain a corresponding peak period time period, a valley period time period and a flat period time period;

The apparent power value determining unit is used for extracting active power and reactive power in the corresponding operation data information of each distribution transformer respectively, and determining first apparent power values corresponding to the preset time points in the peak period according to the active power and the reactive power of the distribution transformer in the peak period;

An average power value determining unit, configured to determine an average apparent power value in the peak period according to each of the first apparent power values;

and the average load factor determining unit is used for determining the peak section average load factor corresponding to the distribution transformer according to the average apparent power value and the capacity of the distribution transformer.

In one embodiment, the partitioning module 320 includes:

The heavy-load information set determining unit is used for determining that the distribution transformer corresponding to the peak section average load rate meets the standard of the heavy-load distribution transformer under the condition that the peak section average load rate is greater than or equal to the preset load rate threshold value, and dividing the distribution transformer corresponding to the peak section average load rate into heavy-load distribution transformer information sets;

Wherein the heavy-duty distribution transformer information set may be represented as: LI _trans＝[tans₁,trans₂,trans₃...,trans_n ]; wherein trans _i＝ID_i,Cap_i,Loc_i,LFPeak_i, wherein ID _i is denoted as the number of the i-th heavy-duty distribution transformer, loc _i＝(lat_i,lon_i),lat_i is denoted as the latitude coordinate of the i-th heavy-duty distribution transformer, and lon _i is denoted as the longitude coordinate of the i-th heavy-duty distribution transformer; cap _i is represented as the capacity of the ith heavy-duty distribution transformer, respectively; LFPeak _i denotes the first peak section average load ratio of the ith heavy-duty distribution transformer; LF _th is represented as a preset load factor threshold;

The light load information set determining unit is used for determining that the distribution transformer corresponding to the peak section average load rate meets the standard of the light load distribution transformer under the condition that the peak section average load rate is smaller than the preset load rate threshold value, and dividing the distribution transformer corresponding to the peak section average load rate into the light load distribution transformer information set;

Wherein the heavy-duty distribution transformer information set may be represented as: LJ _trans＝[tans₁,trans₂,trans₃...,trans_m ]; wherein trans _j＝ID_j,Cap_j,Loc_j,LFPeak_j,ID_j is denoted as the number of the j-th light-load distribution transformer; loc _j＝(lat_j,lon_j),lat_j is represented as the dimensional coordinate of the j-th light-load distribution transformer, and lon _j is represented as the longitude coordinate of the j-th light-load distribution transformer; cap _j is represented as the capacity of the jth light-load distribution transformer; LFPeak _j is the second peak section average load ratio of the jth light load distribution transformer.

In one embodiment, the address determining module 340 includes:

the initialization unit is used for initializing the connection matrix to obtain at least two initialized connection matrices, randomly selecting a target connection matrix from the at least two initialized connection matrices, and taking the target connection matrix as a current connection matrix; the initialization connection matrix characterizes an address selection position of power mutual aid equipment installed between the heavy-load distribution transformer and the light-load distribution transformer;

The mutual power determining unit is used for determining the current mutual power between the heavy-load distribution transformer and the light-load distribution transformer according to the current connection matrix, the capacity in the heavy-load distribution transformer information set, the average load rate of the first peak section of the heavy-load distribution transformer, the capacity in the light-load distribution transformer information set, the average load rate of the second peak section of the light-load distribution transformer and a preset load rate threshold;

A first cost price determining unit, configured to determine a first cost price according to a unit price P _unit of the power mutual-aid device, the connection matrix, and the current mutual-aid power in preset cost prices;

A second cost price determining unit configured to determine a second cost price according to the accessory unit price P _fixed of the power mutual appliance and the current connection matrix;

the distance determining unit is used for determining the distance between the heavy load distribution transformer i and the light load distribution transformer j according to a preset distance formula;

a third cost price determining unit, configured to determine a third cost price according to the distance, a preset connection cable and auxiliary material length unit price P _cable, and the current connection matrix;

And the target cost price determining unit is used for determining the target cost price for installing the power mutual-saving equipment between the heavy-load distribution transformer and the light-load distribution transformer according to the first cost price, the second cost price and the third cost price.

The judging unit is used for judging whether the target cost price meets a preset cost price threshold value or not;

The first determining unit is used for recording the current connection matrix and the current mutual-aid power if yes, taking the current connection matrix and the current mutual-aid power as a one-time traversal recording result, storing the traversal recording result, and selecting the connection matrix with the maximum mutual-aid power from the traversal recording results as the most preferable address position of the power mutual-aid equipment;

And the second determining unit is used for selecting a next connection matrix from the at least two initialization connection matrices if not, taking the next connection matrix as a current connection matrix, and returning to the step of determining the heavy-load distribution transformer and the light-load distribution transformer according to the current connection matrix, the capacity in the heavy-load distribution transformer information set, the average load rate of the first peak section of the heavy-load distribution transformer, the capacity in the light-load distribution transformer information set, the average load rate of the second peak section of the light-load distribution transformer and the preset load rate threshold until all initialization connection matrices are traversed.

In one embodiment, the current mutual power is formulated as: Wherein a _ij is represented as element ,i＝1,…,n;j＝1,…,m;min(Cap_i(LFPeak_i-LF_th),Cap_j(LF_th-LFPeak_j)) in the connection matrix as a minimum mutual capacity condition, wherein Cap _i and Cap _j are represented as a first capacity of the heavy-load distribution transformer and a second capacity of the light-load distribution transformer, respectively; LFPeak _i and LFPeak _j are respectively denoted as a first average load ratio of the heavy-duty distribution transformer and a second average load ratio of the light-duty distribution transformer; LF _th is represented as a preset load factor threshold;

The first cost price is expressed as: Wherein P _unit is denoted as the unit price of the power mutual appliance; z is represented as the current mutual power;

The second cost price is formulated as: Wherein, P _fixed represents the unit price of the power mutual equipment accessory;

The third cost price is expressed as: Wherein P _cable is represented as the length unit price of the connecting cable and the auxiliary material; d _ij is the distance between the heavy load distribution transformer i and the light load distribution transformer j;

the preset distance formula is expressed as:

The device for locating and sizing the power distribution network power mutual aid equipment provided by the embodiment of the invention can execute the method for locating and sizing the power distribution network power mutual aid equipment provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

In an embodiment, fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. The electronic device 10 is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 4, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.

Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.

The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the method of locating and sizing of power distribution network power mutual appliances.

In some embodiments, the method of locating and sizing the power distribution network power mutual-aid device may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method of locating and sizing of power distribution network power mutual devices described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the method of locating and sizing the power distribution network power mutual devices in any other suitable manner (e.g., by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable power distribution network power mutual aid device, such that the computer programs, when executed by the processor, cause the functions/operations specified in the flowchart and/or block diagram to be performed. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.

The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a distribution network power mutually-economical equipment's site selection constant volume method which characterized in that includes:

2. The method of claim 1, wherein each of said distribution transformer attribute information includes at least a number, a capacity, and a location information of a distribution transformer;

3. The method according to any one of claims 1 or 2, wherein determining peak-to-average load ratios of each of the distribution transformers over a preset peak-to-period time based on the operational data information comprises:

extracting active power and reactive power in the corresponding operation data information at each time point of the distribution transformer;

extracting active power and reactive power in the corresponding operation data information of each distribution transformer at each time point, and determining first apparent power values corresponding to the active power and the reactive power respectively;

Dividing each time point into a peak period time, a valley period time and a mean period time, and determining an average apparent power value in the peak period time according to the first apparent power value;

and determining peak section average load rates corresponding to the distribution transformer according to the average apparent power value and the capacity of the distribution transformer.

4. The method of claim 1, wherein the dividing each of the distribution transformers into a heavy load distribution transformer information set and a light load distribution transformer information set according to the peak section average load ratio and a preset load ratio threshold value comprises:

Under the condition that the peak section average load rate is larger than or equal to the preset load rate threshold value, determining that a distribution transformer corresponding to the peak section average load rate meets the standard of a heavy-load distribution transformer, and dividing the distribution transformer corresponding to the peak section average load rate into a heavy-load distribution transformer information set;

wherein the heavy-duty distribution transformer information set may be represented as: LI _trans＝[tans₁,trans₂,trans₃…,trans_n ]; wherein trans _i＝ID_i,Cap_i,Loc_i,LFPeak_i, wherein ID _i is denoted as the number of the i-th heavy-duty distribution transformer, loc _i＝(lat_i,lon_i),lat_i is denoted as the latitude coordinate of the i-th heavy-duty distribution transformer, and lon _i is denoted as the longitude coordinate of the i-th heavy-duty distribution transformer; cap _i is represented as the capacity of the ith heavy-duty distribution transformer, respectively; LFPeak _i denotes the first peak section average load ratio of the ith heavy-duty distribution transformer; LF _th is represented as a preset load factor threshold;

Under the condition that the peak section average load rate is smaller than the preset load rate threshold value, determining that a distribution transformer corresponding to the peak section average load rate meets the standard of a light-load distribution transformer, and dividing the distribution transformer corresponding to the peak section average load rate into light-load distribution transformer information sets;

Wherein the heavy-duty distribution transformer information set may be represented as: LJ _trans＝[tans₁,trans₂,trans₃…,trans_m ]; wherein trans _j＝ID_j,Cap_j,Loc_j,LFPeak_j,ID_j is denoted as the number of the j-th light-load distribution transformer; loc _j＝(lat_j,lon_j),lat_j is represented as the dimensional coordinate of the j-th light-load distribution transformer, and lon _j is represented as the longitude coordinate of the j-th light-load distribution transformer; cap _j is represented as the capacity of the jth light-load distribution transformer; LFPeak _j is the second peak section average load ratio of the jth light load distribution transformer.

5. The method of claim 1, wherein the connection matrix is formulated as: Wherein n is the number of heavy-load distribution transformers, and m is the number of light-load distribution transformers; wherein a _ij = 0 or 1; when a _ij =0, the ith heavy-load distribution transformer is not connected with the jth light-load distribution transformer, namely power mutual-aid equipment is not established; when a _ij =1, it represents that the ith heavy-load distribution transformer is connected with the jth light-load distribution transformer, that is, a power mutual-aid device is established, which has one element of 1 in the row and column.

6. The method of claim 1, wherein determining an addressing location for installing power mutual-aid devices between the heavy-load distribution transformer and the light-load distribution transformer based on the traversal record of the connection matrix comprises:

Initializing the connection matrix to obtain at least two initialized connection matrixes, arbitrarily selecting a target connection matrix from the at least two initialized connection matrixes, and taking the target connection matrix as a current connection matrix; the initialization connection matrix characterizes an address selection position of power mutual aid equipment installed between the heavy-load distribution transformer and the light-load distribution transformer;

Determining the current mutual power between the heavy-load distribution transformer and the light-load distribution transformer according to the current connection matrix, the capacity in the heavy-load distribution transformer information set, the first peak section average load rate of the heavy-load distribution transformer, the capacity in the light-load distribution transformer information set, the second peak section average load rate of the light-load distribution transformer and a preset load rate threshold;

determining a first cost price according to unit price of the power mutual-aid equipment, the connection matrix and the current mutual-aid power in preset cost price;

Determining a second cost price based on the accessory kit price of the power mutual aid device and the current connection matrix;

determining the distance between the heavy load distribution transformer i and the light load distribution transformer j according to a preset distance formula;

Determining a third cost price according to the distance, a preset connection cable and auxiliary material length unit price and the current connection matrix;

determining a target cost price for installing power mutual-aid equipment between the heavy-load distribution transformer and the light-load distribution transformer according to the first cost price, the second cost price and the third cost price;

Judging whether the target cost price meets a preset cost price threshold value or not;

if yes, recording a current connection matrix and current mutual-aid power, taking the current connection matrix and the current mutual-aid power as a one-time traversal record result, and storing the traversal record result, and selecting a connection matrix with the maximum mutual-aid power from the traversal record results as the most preferable address position of the power mutual-aid equipment;

And if not, selecting a next connection matrix from the at least two initialization connection matrices, taking the next connection matrix as a current connection matrix, and returning to the step of determining the heavy-load distribution transformer and the light-load distribution transformer according to the current connection matrix, the capacity in the heavy-load distribution transformer information set, the first peak section average load rate of the heavy-load distribution transformer, the capacity in the light-load distribution transformer information set, the second peak section average load rate of the light-load distribution transformer and the preset load rate threshold until all initialization connection matrices are traversed.

7. The method of claim 6, wherein the current mutual power is formulated as: Wherein a _ij is represented as element ,i＝1,…,n;j＝1,…,m;min(Cap_i(LFPeak_i-LF_th),Cap_j(LF_th-LFPeak_j)) in the connection matrix as a minimum mutual capacity condition, wherein Cap _i and Cap _j are represented as a first capacity of the heavy-load distribution transformer and a second capacity of the light-load distribution transformer, respectively; LFPeak _i and LFPeak _j are respectively denoted as a first average load ratio of the heavy-duty distribution transformer and a second average load ratio of the light-duty distribution transformer; LF _th is represented as a preset load factor threshold;

the preset distance formula is expressed as: Wherein r is the earth radius, Δlat=lat _i-lat_j, which is the dimension difference between the heavy load distribution transformer i and the light load distribution transformer j; lat _i represents dimension information of the heavy-load distribution transformer i; lat _j represents dimension information of the light-load distribution transformer j; here, Δlon=lon _i-lon_j denotes a longitude difference between the heavy load distribution transformer i and the light load distribution transformer j, lon _i denotes longitude information of the heavy load distribution transformer i, and lon _j denotes longitude information of the light load distribution transformer j.

8. The utility model provides a distribution network power mutually-economical equipment's site selection constant volume device which characterized in that includes:

The relation construction module is used for constructing a connection matrix between the heavy-load distribution transformer in the heavy-load distribution transformer information concentration and the light-load distribution transformer in the light-load distribution transformer information concentration;

9. An electronic device, the electronic device comprising:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the method of locating and sizing of the power distribution network power mutual aid device of any of claims 1-7.

10. A computer readable storage medium storing computer instructions for causing a processor to perform the method of locating and sizing a power distribution network power mutual aid device of any of claims 1-7.