A terminal load deduction method based on power transmission and distribution equipment

Abstract

The present application relates to power distribution management technical field, specifically to a kind of terminal load deduction method based on power transmission and distribution equipment, comprising: constructing database, real-time acquisition power transmission and distribution equipment connects each power transmission and distribution line power transmission and distribution parameter, the power transmission and distribution parameter of power transmission and distribution equipment connected each power transmission and distribution equipment is stored using database;Set data call cycle, based on data call cycle in database call the power transmission and distribution parameter meeting data call cycle;The power transmission and distribution parameter of acquisition call, the present application can power transmission and distribution equipment and the historical operation data of power transmission and distribution line connected, the load deduction prediction of power distribution terminal connected to power transmission and distribution equipment, to provide data reference for power transmission and distribution equipment docking power distribution terminal user, to facilitate anticipatory preparation and preventive control to power distribution terminal, to ensure the safe and stable operation of power distribution terminal, realize power distribution terminal as far as possible reach safe and economic operating state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution management, and particularly relates to a terminal load deduction method based on power transmission and distribution equipment. BACKGROUND

[0002] The definition of power transmission and distribution equipment refers to various devices and apparatuses for transmitting and distributing electric energy in a power system, which processes the electric energy generated by power plants through boosting, transmission, voltage reduction, etc., and finally supplies the electric energy to various electric terminal to meet the production and living needs of people.

[0003] However, when serving various electric users, the power transmission and distribution equipment has great randomness in the electric habit of various electric users, and the load of the power distribution terminal may have great differences at different times, which will have certain influences on the power distribution terminal, such as power distribution overload, power storage overload of the power distribution terminal when the power distribution terminal and the power generation system are integrated, etc. These influences will cause the operation fluctuation of the power distribution terminal. At present, there is no better technology to perform load deduction prediction on the power distribution terminal to provide data reference for the power distribution terminal management user, so as to make preventive control on the power distribution terminal. SUMMARY

[0004] In view of the above-mentioned defects in the prior art, the present application provides a terminal load deduction method based on power transmission and distribution equipment, which solves the technical problems proposed in the background.

[0005] To achieve the above object, the present application is realized by the following technical scheme:

[0006] A terminal load deduction method based on power transmission and distribution equipment, comprising:

[0007] The database is constructed, and the power transmission and distribution parameters of the power transmission and distribution equipment connected to each power transmission and distribution line are collected in real time. The power transmission and distribution parameters of the power transmission and distribution equipment connected to each power transmission and distribution equipment are stored by using the database. A data calling period is set, and the power transmission and distribution parameters meeting the data calling period are called in the database based on the data calling period. The called power transmission and distribution parameters are obtained, the corresponding power transmission and distribution parameters of each group of power transmission and distribution equipment connected to the power transmission and distribution line are analyzed, the differences between the power transmission and distribution parameters of the power transmission and distribution equipment are analyzed, and the corresponding power transmission and distribution parameters of each group of power transmission and distribution line are sorted based on the difference analysis result. According to the sorting result of the corresponding power transmission and distribution parameters of each group of power transmission and distribution line, the corresponding power transmission and distribution parameters of each group of power transmission and distribution line are sequentially converted into a linear graph, and the longest line segment with a similarity of not less than 90% to the linear graph obtained by converting the corresponding power transmission and distribution parameters of the power transmission and distribution equipment is intercepted in the linear graph. The number of groups of power transmission and distribution parameters corresponding to the line segment in the linear graph is identified, and the position of the number of groups of power transmission and distribution parameters relative to the horizontal axis representing all the number of groups of power transmission and distribution parameters in the linear graph is further identified. The latest power transmission and distribution parameters of each power transmission and distribution line are newly called in the database based on the data calling period, the called power transmission and distribution parameters are converted into a linear graph again, the position of the number of groups of power transmission and distribution parameters relative to the horizontal axis representing all the number of groups of power transmission and distribution parameters in the linear graph is identified based on the position identified in the previous step, and a line segment is intercepted at the same position in the linear graph obtained by the new conversion. The linear graph is formed by the intercepted line segment.

[0008] Further, the power transmission and distribution parameters of the power transmission and distribution line connected to the power transmission and distribution equipment include power distribution voltage, power distribution current, and power distribution resistance. When storing the power transmission and distribution parameters of each power transmission and distribution line connected to the power transmission and distribution equipment, the database stores the power transmission and distribution parameters based on the power transmission and distribution line from which the power transmission and distribution parameters are obtained.

[0009] In the power transmission and distribution parameter collection stage of the power transmission and distribution equipment connected to each power transmission and distribution line, the power transmission and distribution parameters of the power transmission and distribution equipment are collected synchronously, and the collected power transmission and distribution parameters of the power transmission and distribution equipment are stored synchronously in the database.

[0010] Further, the collection of the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment is based on a specified frequency. At least ten groups of power transmission and distribution parameters are included in the data calling period. The power transmission and distribution parameters called based on the data calling period are the latest power transmission and distribution parameters stored in the database.

[0011] After the power transmission and distribution parameters are called based on the data calling period, the database synchronously deletes the power transmission and distribution parameters other than the called power transmission and distribution parameters stored in the database.

[0012] Further, the difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment is calculated by the following formula:

[0013]

[0014] In the formula: χ is the difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment; m is the number of groups of the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment; V n , I n , R n is the voltage, current and resistance in the power transmission and distribution parameters of the nth group of power transmission and distribution equipment; vn, in, rn is the voltage, current and resistance in the power transmission and distribution parameters of the nth group of power transmission and distribution line; V n+1 , I n+1 , R n+1 is the voltage, current and resistance in the power transmission and distribution parameters of the nth+1 group of power transmission and distribution equipment; v n+1 , in+1, r n+ 1 is the voltage, current and resistance in the power transmission and distribution parameters of the nth+1 group of power transmission and distribution line;

[0015] Wherein, the larger the value of χ, the greater the difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment, and vice versa, indicating that the difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment is smaller. Based on the above formula, the difference between the power transmission and distribution parameters of each group of power transmission and distribution line and the power transmission and distribution equipment is analyzed.

[0016] Further, after the difference between the power transmission and distribution parameters of each group of power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment is identified, the corresponding power transmission and distribution parameters of each group of power transmission and distribution line are sorted based on the size of χ of the corresponding power transmission and distribution parameters of each group of power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment, so that the corresponding power transmission and distribution parameters of the power transmission and distribution line with smaller χ are sorted in front, and the corresponding power transmission and distribution parameters of the power transmission and distribution line with larger χ are sorted in back.

[0017] Further, the linear graph obtained by converting the power transmission and distribution parameters has a horizontal axis representing the number of groups of power transmission and distribution parameters, and a vertical axis representing the product of voltage, current and resistance of power transmission and distribution parameters.

[0018] Further, the linear graph obtained by converting the power transmission and distribution parameters is transmitted to the database synchronously and stored in the database.

[0019] Further, the similarity between the linear graph corresponding to the power transmission and distribution parameters of the power transmission and distribution line and the linear graph corresponding to the power transmission and distribution parameters of the power transmission and distribution equipment is calculated by the following formula:

[0020]

[0021] In the formula: sim(a, b) v is the similarity of the power transmission and distribution line corresponding linear graph a and the power transmission and distribution equipment corresponding linear graph b under the v window; k avSlope of the line segment under the V window in the line graph a corresponding to the power transmission and distribution line; kbv is the slope of the line segment under the V window in the line graph b corresponding to the power transmission and distribution equipment; dav is the length of the line segment under the V window in the line graph a corresponding to the power transmission and distribution line; dbv is the length of the line segment under the V window in the line graph b corresponding to the power transmission and distribution equipment;

[0022] The line graph window is manually set by the system end user, the line graph window equally divides the line graph, and the line graph window is greater than ten groups. Similarity of each corresponding window in two line graphs is calculated based on the above formula.

[0023] Further, the longest line segment with a similarity of not less than 90% in the line graph is a line segment under the largest continuous window in the line graph corresponding to the power transmission and distribution equipment and the line graph corresponding to the power transmission and distribution line.

[0024] The line segment is sequentially intercepted from small to large based on the sorting queue until all line segments in the line graph corresponding to the power transmission and distribution equipment are intercepted in the line graph corresponding to the power transmission and distribution line.

[0025] Further, the line segment is intercepted at the same position in the new converted line graph. The line segment is used to form the line graph corresponding to the power transmission and distribution equipment. The line graph is used to calculate the similarity again with the line graph corresponding to the power transmission and distribution line. The line graph is sequentially formed in the line graph corresponding to the power transmission and distribution line based on the sorting result, and is recorded as the deduced line graph.

[0026] Compared with the known prior art, the technical scheme provided by the application has the following beneficial effects:

[0027] The application provides a terminal load deduction method based on power transmission and distribution equipment. In the execution process, the method can deduce and predict the load of the power distribution terminal connected to the power transmission and distribution equipment based on the historical operation data of the power transmission and distribution equipment and the power transmission and distribution line connected thereto, so as to provide data reference for the user of the power distribution terminal connected to the power transmission and distribution equipment, so as to make predictive preparation and preventive regulation for the power distribution terminal, so as to ensure the safe and stable operation of the power distribution terminal, and realize the safe and economic operation state of the power distribution terminal. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0029] Figure 1 A flowchart of a terminal load deduction method based on power transmission and distribution equipment. DETAILED DESCRIPTION

[0030] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0031] The present application will be further described below with reference to the embodiments.

[0032] Embodiment 1

[0033] A terminal load deduction method based on power transmission and distribution equipment in the embodiment comprises the following steps as shown in the figure: Figure 1

[0034] Step 1: Construct a database, collect power transmission and distribution parameters of power transmission and distribution equipment connected to each power transmission and distribution line in real time, and store the power transmission and distribution parameters of power transmission and distribution equipment connected to each power transmission and distribution equipment by using the database;

[0035] Step 2: Set a data calling period, and call the power transmission and distribution parameters meeting the data calling period in the database based on the data calling period;

[0036] Step 3: Obtain the called power transmission and distribution parameters, analyze the differences between the power transmission and distribution parameters corresponding to each group of power transmission and distribution equipment connected to the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment, sort the power transmission and distribution parameters corresponding to each group of power transmission and distribution line based on the difference analysis result;

[0037] Step 4: According to the sorting result of the power transmission and distribution parameters corresponding to each group of power transmission and distribution line, sequentially convert the power transmission and distribution parameters corresponding to each group of power transmission and distribution line into a line graph, and intercept the longest line segment in the line graph with a similarity of not less than 90% to the line segment corresponding to the power transmission and distribution parameters converted from the power transmission and distribution equipment;

[0038] Step 5: Identify the number of power transmission and distribution parameter groups corresponding to the line segment in the line graph from which each group of intercepted line segment is derived, and further identify the position of the number of power transmission and distribution parameter groups relative to the horizontal axis representing all the number of power transmission and distribution parameter groups in the line graph;

[0039] ​Step 6: Based on the data call cycle in the database, the latest power transmission and distribution parameters of each power transmission and distribution line are newly called, the called power transmission and distribution parameters are converted into a line graph again, based on the power transmission and distribution parameter group number identified in the previous step relative to the position of all power transmission and distribution parameter group numbers represented by the horizontal axis in the line graph, a line segment is intercepted in the same position in the newly converted line graph, and the intercepted line segment constitutes a line graph;

[0040] The difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment is calculated by the following formula:

[0041]

[0042] In the formula, χ is the difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment; m is the number of power transmission and distribution parameter groups of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment; V n , I n , R n is the voltage, current and resistance in the nth group of power transmission and distribution parameters of the power transmission and distribution equipment; vn, in, rn are the voltage, current and resistance in the nth group of power transmission and distribution parameters of the power transmission and distribution line; V n+1 , I n+1 , R n+1 is the voltage, current and resistance in the nth+1 group of power transmission and distribution parameters of the power transmission and distribution equipment; v n+1 , in+1, r n+ 1 is the voltage, current and resistance in the nth+1 group of power transmission and distribution parameters of the power transmission and distribution line;

[0043] Wherein, the larger the value of χ, the greater the difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment, and vice versa, indicating that the difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment is smaller, and based on the above formula, the difference between the power transmission and distribution parameters of each group of power transmission and distribution line and power transmission and distribution equipment is analyzed;

[0044] The similarity between the line graph converted from the power transmission and distribution parameters of the power transmission and distribution line and the line graph converted from the power transmission and distribution parameters of the power transmission and distribution equipment is calculated by the following formula:

[0045]

[0046] In the formula, sim(a, b) v is the similarity of the power transmission and distribution line corresponding line graph a and the power transmission and distribution equipment corresponding line graph b under the v window; k avSlope of the lower line segment of the v window in the line graph a corresponding to the power transmission and distribution line; kbv is the slope of the lower line segment of the v window in the line graph b corresponding to the power transmission and distribution equipment; dav is the length of the lower line segment of the v window in the line graph a corresponding to the power transmission and distribution line; dbv is the length of the lower line segment of the v window in the line graph b corresponding to the power transmission and distribution equipment;

[0047] The line graph window is manually set by the system end user, the line graph window equally divides the line graph, and the line graph window is greater than ten groups. Similarity calculation is performed on each corresponding window in the two line graphs based on the above formula.

[0048] In the embodiment, the load evolution and prediction of the power distribution terminal of the power transmission and distribution equipment are brought by the execution of the method in the above embodiment, data reference is provided for the power transmission and distribution equipment to interface the power distribution terminal user, so that the power distribution terminal is prepared and prevented in advance, the operation of the power distribution terminal of the power transmission and distribution equipment tends to be safer and more stable;

[0049] It should be noted that the line graph applied in the embodiment is a polyline composed of points and lines.

[0050] Embodiment 2:

[0051] In the specific implementation level, on the basis of embodiment 1, the embodiment refers to Figure 1 The terminal load evolution method based on the power transmission and distribution equipment in embodiment 1 is further specifically described:

[0052] The power transmission and distribution parameters of the power transmission and distribution line connected to the power transmission and distribution equipment include power distribution voltage, power distribution current, and power distribution resistance. When the database stores the power transmission and distribution parameters of each power transmission and distribution line connected to the power transmission and distribution equipment, the power transmission and distribution parameters are stored based on the power transmission and distribution parameter source power transmission and distribution line.

[0053] In the power transmission and distribution parameter collection stage of the power transmission and distribution equipment connected to each power transmission and distribution line, the power transmission and distribution parameters of the power transmission and distribution equipment are collected synchronously, and the collected power transmission and distribution parameters of the power transmission and distribution equipment are stored synchronously in the database.

[0054] Through the above setting, the power transmission and distribution parameter content of the power transmission and distribution line is further limited, and when the database stores the power transmission and distribution parameter of the power transmission and distribution line, the specified storage logic is configured to ensure stable storage of the power transmission and distribution parameter of the power transmission and distribution line in the database.

[0055] As shown in Figure 1 The collection of the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution parameters of the power transmission and distribution equipment is based on a specified frequency, and at least ten groups of power transmission and distribution parameters are included in the data calling period. The power transmission and distribution parameters called based on the data calling period are the latest power transmission and distribution parameters stored in the database.

[0056] Wherein, the power transmission and distribution parameters are deleted from the database after the data call cycle is completed.

[0057] The above setting provides further operation logic for the database used in the method.

[0058] As shown in Figure 1 After the power transmission and distribution parameters of each group of power transmission and distribution lines and the power transmission and distribution parameters of the power transmission and distribution equipment are identified, the corresponding power transmission and distribution parameters of each group of power transmission and distribution lines are sorted based on the χ values of the corresponding power transmission and distribution parameters of each group of power transmission and distribution lines and the power transmission and distribution parameters of the power transmission and distribution equipment, so that the corresponding power transmission and distribution parameters of the corresponding power transmission and distribution lines with smaller χ values are sorted first, and the corresponding power transmission and distribution parameters of the corresponding power transmission and distribution lines with larger χ values are sorted last.

[0059] The above setting logically sorts the corresponding power transmission and distribution parameters of each group of power transmission and distribution lines, providing data support for further execution of the method in the embodiment.

[0060] Embodiment 3:

[0061] At the specific implementation level, based on embodiment 1, this embodiment refers to Figure 1 The embodiment 1 is further described in detail:

[0062] The horizontal axis of the line graph obtained by converting the power transmission and distribution parameters represents the number of power transmission and distribution parameter groups, and the vertical axis represents the product of the voltage, current, and resistance of the power transmission and distribution parameters.

[0063] The line graph obtained by converting the power transmission and distribution parameters is transmitted to the database at the same time and stored in the database.

[0064] The above setting further limits the form of the line graph obtained by converting the power transmission and distribution parameters.

[0065] As shown in Figure 1 The longest line segment with a similarity of not less than 90% in the line graph is the line segment in the line graph corresponding to the power transmission and distribution equipment, which is under the largest continuous window with a similarity of not less than 90% in the line graph corresponding to the power transmission and distribution equipment.

[0066] The line segment is cut based on the sorting queue from small to large, and the operation ends when all line segments in the line graph corresponding to the power transmission and distribution equipment are cut in the line graph corresponding to each group of power transmission and distribution lines.

[0067] A line segment is intercepted at the same position in the obtained linear graph of the new conversion, and the linear graph is formed by the intercepted line segment. Before the linear graph corresponding to the power distribution equipment is formed by the intercepted line segment, the linear graph obtained by converting the power distribution parameters of each power distribution line is calculated again for similarity and sorted, and based on the sorting result, the linear graph corresponding to the power distribution line is formed by the intercepted line segment in turn, which is recorded as the deduced linear graph.

[0068] Through the above setting, the final formation logic of the deduced linear graph of the power distribution terminal of the power distribution equipment is provided, and the deduced linear graph is used to show the deduction result, thereby providing the visualized deduction data reading condition for the user of the power distribution terminal of the power distribution equipment.

[0069] In summary, in the above-mentioned embodiments, the method can deduce and predict the load of the power distribution terminal connected to the power distribution equipment by using the historical operation data of the power distribution equipment and the power distribution line connected thereto, thereby providing the data reference for the user of the power distribution terminal connected to the power distribution equipment, so as to make the anticipatory preparation and preventive regulation for the power distribution terminal, thereby ensuring the safe and stable operation of the power distribution terminal, and realizing the safe and economic operation state of the power distribution terminal.

[0070] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones. Such modifications or replacements will not change the essence of the corresponding technical solutions, and will not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A terminal load deduction method based on power transmission and distribution equipment, characterized in that: The following steps are involved: Step 1: Build a database to collect the power transmission and distribution parameters of the power transmission and distribution equipment connected to each power transmission and distribution line in real time, and use the database to store the power transmission and distribution parameters of the power transmission and distribution equipment connected to each power transmission and distribution equipment; Step 2: Set a data call cycle, and retrieve the power transmission and distribution parameters that meet the data call cycle from the database based on the data call cycle; Step 3: Obtain the retrieved power transmission and distribution parameters, analyze the power transmission and distribution parameters corresponding to the power transmission and distribution lines connected to each group of power transmission and distribution equipment, and compare the differences between the power transmission and distribution parameters of the power transmission and distribution equipment. Based on the difference analysis results, sort the power transmission and distribution parameters corresponding to each group of power transmission and distribution lines. Step 4: Based on the sorting results of the transmission and distribution parameters corresponding to each group of transmission and distribution lines, sequentially convert the transmission and distribution parameters corresponding to each group of transmission and distribution lines into a line graph, and intercept the longest line segment in the linear graph that has a similarity of not less than 90% with the line graph obtained by converting the transmission and distribution parameters corresponding to the transmission and distribution equipment; Step 5: Identify the number of the power transmission and distribution parameter group corresponding to the line segment in the line graph of the source of each group of intercepted line segments, and further identify the position of the power transmission and distribution parameter group number relative to the horizontal axis of the line graph representing the number of all power transmission and distribution parameter groups; Step 6: Retrieve the latest transmission and distribution parameters for each transmission and distribution line from the database based on the data call cycle, convert the retrieved transmission and distribution parameters into a line graph again, and based on the position of the number of transmission and distribution parameter groups identified in the previous step relative to the horizontal axis representing the number of all transmission and distribution parameter groups in the line graph, intercept line segments at the same position in the newly converted linear graph, and use the intercepted line segments to form a line graph; The difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution equipment is calculated using the following formula: ； Where: The difference between the transmission and distribution parameters of the transmission and distribution lines and the transmission and distribution parameters of the transmission and distribution equipment; The number of groups of power transmission and distribution parameters of the power transmission and distribution lines and the power transmission and distribution equipment; 、 、 The voltage, current and resistance of the power transmission and distribution parameters of the nth group of power transmission and distribution equipment; 、 、 The voltage, current and resistance of the nth group of transmission and distribution lines in the power transmission and distribution parameters; 、 、 The voltage, current and resistance of the power transmission and distribution parameters of the n+1th group of power transmission and distribution equipment; 、 、 The voltage, current and resistance of the transmission and distribution parameters of the n+1th group of transmission and distribution lines; in, The larger the value, the greater the difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution equipment. Conversely, the smaller the difference between the power transmission and distribution parameters of the power transmission and distribution line and the power transmission and distribution equipment. Based on the above formula, the difference analysis of the power transmission and distribution parameters of each group of power transmission and distribution lines and power transmission and distribution equipment is performed; The similarity between the line graph obtained by converting the power transmission and distribution parameters corresponding to the power transmission and distribution line and the line graph obtained by converting the power transmission and distribution parameters corresponding to the power transmission and distribution equipment is calculated using the following formula: ； Where: is the similarity between the line graph a corresponding to the transmission and distribution line and the line graph b corresponding to the transmission and distribution equipment in the window v; is the slope of the line segment under the window v in the line graph a corresponding to the transmission and distribution line; is the slope of the line segment under the window v in the line graph b corresponding to the power transmission and distribution equipment; is the length of the line segment under the window v in the line diagram a corresponding to the transmission and distribution line; is the length of the line segment under the window v in the line diagram b corresponding to the power transmission and distribution equipment; The line graph window is manually set by the system user, and the line graph window divides the line graph into equal parts, and the number of line graph windows is greater than ten groups. Based on the above formula, the similarity calculation is performed on the corresponding windows in the two groups of line graphs.

2. A terminal load deduction method based on power transmission and distribution equipment according to claim 1, characterized in that: The power transmission and distribution parameters of the power transmission and distribution line connected to the power transmission and distribution equipment include: distribution voltage, distribution current, and distribution resistance. When storing the power transmission and distribution parameters of each power transmission and distribution line connected to the power transmission and distribution equipment, the database differentiates and stores the power transmission and distribution parameters based on the source power transmission and distribution line. The power transmission and distribution parameters of the power transmission and distribution equipment are collected, and the collected power transmission and distribution parameters of the power transmission and distribution equipment are synchronously stored in the database.

3. The terminal load deduction method based on power transmission and distribution equipment according to claim 1 is characterized in that: The collection of the transmission and distribution parameters of the transmission and distribution lines and the transmission and distribution parameters of the transmission and distribution equipment is based on a specified frequency, and the data call cycle includes at least ten sets of transmission and distribution parameters. The transmission and distribution parameters retrieved based on the data call cycle are the latest transmission and distribution parameters stored in the database; Among them, after the power transmission and distribution parameters are retrieved based on the data call cycle, the database synchronously deletes the power transmission and distribution parameters other than the retrieved power transmission and distribution parameters stored internally.

4. The terminal load deduction method based on power transmission and distribution equipment according to claim 1 is characterized in that: After the differences between the power transmission and distribution parameters of each group of power transmission and distribution lines and the power transmission and distribution parameters of the power transmission and distribution equipment are identified, when sorting the power transmission and distribution parameters corresponding to each group of power transmission and distribution lines, the power transmission and distribution parameters corresponding to each group of power transmission and distribution lines and the power transmission and distribution parameters of the power transmission and distribution equipment are sorted. Sort by size so that The smaller the corresponding transmission and distribution lines, the higher the corresponding transmission and distribution parameters. The transmission and distribution parameters corresponding to the larger transmission and distribution lines are sorted at the end.

5. The terminal load deduction method based on power transmission and distribution equipment according to claim 1 is characterized in that: The horizontal axis of the line graph obtained by the conversion of transmission and distribution parameters represents the number of transmission and distribution parameter groups, and the vertical axis represents the product of the voltage, current and resistance of the transmission and distribution parameters.

6. The terminal load deduction method based on power transmission and distribution equipment according to claim 1 is characterized in that: The line graph obtained by converting the power transmission and distribution parameters is synchronously transmitted to the database and stored in the database.

7. The terminal load deduction method based on power transmission and distribution equipment according to claim 1 is characterized in that: The longest line segment with a similarity of not less than 90% in the line graph is: the line segment with a similarity of not less than 90% and within the largest continuous window in the line graph corresponding to the power transmission and distribution lines and the line graph corresponding to the power transmission and distribution equipment; Among them, the operation of intercepting line segments in the line graph is intercepted in order from small to large based on the sorting queue until all line segments in the line graph corresponding to the power transmission and distribution equipment are intercepted and the corresponding line segments are intercepted in the line graph corresponding to each group of power transmission and distribution lines.

8. The terminal load deduction method based on power transmission and distribution equipment according to claim 1 is characterized in that: Before the stage of intercepting line segments at the same positions in the newly converted linear graph and using the intercepted line segments to form the corresponding line graph of the power transmission and distribution equipment, the line graph obtained by converting the power transmission and distribution parameters of each power transmission and distribution line is again similar to and sorted with the corresponding line graph of the power transmission and distribution equipment. Based on the sorting results, line graphs are constructed in sequence from the intercepted line segments of the corresponding line graph of the transmission and distribution line, which are recorded as deduced line graphs.

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