Low-voltage studying and judging method and system based on electric energy data analysis

Abstract

The invention discloses a low-voltage research and judgment method and system based on electric energy data analysis, and relates to the technical field of low-voltage judgment, and the method comprises the steps: obtaining daily user voltage data and rated voltage of the user voltage data; preprocessing the user voltage data; obtaining the average voltage of the preprocessed user voltage data; and according to the rated voltage and the average voltage, judging whether the user voltage is low voltage. Through the method, the calculation amount can be greatly reduced, and the low-voltage judgment precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of low voltage determination, and more particularly to a low voltage determination method and system based on electric energy data analysis. Background Art

[0002] It is the unshirkable responsibility of power supply companies to ensure the quality of electricity used by customers. With the increasing demand for electricity from customers in recent years, more and more types of power-consuming equipment have been connected to the power grid. However, the transformation of power supply infrastructure is difficult. Due to the large power supply radius, small transformer capacity, and small power supply line cross-section, low voltage for customers often occurs, seriously affecting the rights and interests of customers in electricity use. With the collection of massive power data, through the analysis of power data, accurate judgment of low power supply voltage can be achieved, guiding the grassroots frontline to actively eliminate low voltage problems and ensure the quality of power used by customers, which plays a key role.

[0003] However, the current low voltage judgment method requires a lot of calculations and cannot know the cause of the low voltage. Therefore, for different low voltage modes, how to reduce the amount of calculations and make targeted judgments is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0004] In view of the above problems, the present invention provides a low voltage analysis method and system based on electric energy data analysis to at least solve some of the technical problems mentioned in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] On the one hand, an embodiment of the present invention provides a low voltage analysis method based on electric energy data analysis, comprising the following steps:

[0007] S1. Obtain daily user voltage data and the rated voltage of the user voltage data;

[0008] S2. Preprocessing the user voltage data;

[0009] S3, obtaining the average voltage of the pre-processed user voltage data;

[0010] S4. Determine whether the user voltage is a low voltage according to the rated voltage and the average voltage.

[0011] Furthermore, it also includes:

[0012] S5. If low voltage occurs for n consecutive days, the current voltage of the electric energy meter is read and compared with the rated voltage;

[0013] If the current voltage of the electric energy meter is lower than the preset value of the rated voltage, it is determined that the low voltage condition is caused by a failure of the metering device.

[0014] Furthermore, the step S2 specifically includes:

[0015] Sorting the user voltage data according to the size of the data value;

[0016] Removing a first preset number of minimum values ​​from the user voltage data to obtain remaining voltage data;

[0017] A second preset number of minimum values ​​are selected from the remaining voltage data as target voltage data.

[0018] Furthermore, the step S3 specifically includes: calculating the average voltage of the target voltage data.

[0019] Furthermore, the step S4 specifically includes:

[0020] Obtaining a difference between the rated voltage and the average voltage;

[0021] The difference is compared with the rated voltage, and if the difference is lower than a preset ratio of the rated voltage, the user voltage is determined to be a low voltage.

[0022] On the other hand, an embodiment of the present invention further provides a low voltage analysis system based on electric energy data analysis, and the above method is applied. The low voltage analysis system based on electric energy data analysis includes: an acquisition module, a preprocessing module, a calculation module and a first judgment module;

[0023] The acquisition module is used to acquire daily user voltage data and the rated voltage of the user voltage data;

[0024] The preprocessing module is used to preprocess the user voltage data;

[0025] The calculation module is used to obtain the average voltage of the pre-processed user voltage data;

[0026] The first judgment module is used to judge whether the user voltage is low voltage according to the rated voltage and the average voltage.

[0027] Furthermore, it also includes a second judgment module;

[0028] The second judgment module is used to read the current voltage of the electric energy meter when low voltage occurs for n consecutive days, and judge the current voltage of the electric energy meter with the rated voltage;

[0029] If the current voltage of the electric energy meter is lower than the preset value of the rated voltage, it is determined that the low voltage condition is caused by a failure of the metering device.

[0030] Further, the pre-processing module includes a sorting submodule, a screening submodule and a filtering submodule;

[0031] The sorting submodule is used to sort the user voltage data according to the size of the data value;

[0032] The screening submodule is used to remove a first preset number of minimum values ​​from the user voltage data to obtain remaining voltage data;

[0033] The screening submodule is used to screen a second preset number of minimum values ​​from the remaining voltage data as target voltage data.

[0034] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a low voltage judgment method and system based on electric energy data analysis, which has the following beneficial effects:

[0035] The present invention obtains the average voltage of user voltage data, and determines whether the user voltage is low voltage according to the rated voltage and the average voltage. This process greatly reduces the amount of calculation.

[0036] When low voltage occurs for n consecutive days, the present invention reads the current voltage of the electric energy meter and compares the current voltage of the electric energy meter with the rated voltage, based on which the specific cause of the low voltage can be obtained.

[0037] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0038] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0040] Figure 1 A schematic flow chart of a low voltage analysis method based on electric energy data analysis provided in an embodiment of the present invention.

[0041] Figure 2 A schematic diagram of the framework of a low voltage analysis system based on electric energy data analysis provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1 As shown, the embodiment of the present invention discloses a low voltage analysis method based on electric energy data analysis, comprising the following steps:

[0044] S1. Obtain daily user voltage data and rated voltage of the user voltage data;

[0045] S2, preprocessing the user voltage data;

[0046] S3, obtaining the average voltage of the pre-processed user voltage data;

[0047] S4. Judging whether the user voltage is low voltage according to the rated voltage and the average voltage;

[0048] S5. If low voltage occurs for n consecutive days, the current voltage of the electric energy meter is read and compared with the rated voltage;

[0049] If the current voltage of the electric energy meter is lower than the preset value of the rated voltage, it is determined that the low voltage condition is caused by a fault in the metering device.

[0050] Next, each of the above steps will be described respectively.

[0051] In the above step S1, the daily user voltage data and the rated voltage of the user voltage data are obtained through the power consumption information collection system; the collection frequency is n points / hour.

[0052] In the above steps S2 and S3, the user voltage data is sorted according to the size of the data value; a first preset number of minimum values ​​are removed from the user voltage data to obtain the remaining voltage data; a second preset number of minimum values ​​are selected from the remaining voltage data as the target voltage data; and then the average voltage of the target voltage data is calculated; specifically expressed as follows:

[0053]

[0054] m 2 ≤24*nm 1

[0055] Among them, U avg Indicates the average voltage; Ui Represents the i-th voltage value in the remaining voltage data; m 1 Indicates the first preset number; m 2 Indicates the second preset quantity.

[0056] In the above step S4, the difference between the rated voltage and the average voltage is obtained; it is expressed as:

[0057] U 0 =U avg -U

[0058] Among them, U 0 Indicates the difference; U indicates the rated voltage;

[0059] The difference U 0 Compared with the rated voltage U, according to the power supply business rules, if the difference is lower than the preset ratio of the rated voltage, the user voltage is judged to be low voltage.

[0060] In the above step S5, for the voltage data curve of a single user in the substation, if low voltage occurs for n consecutive days, the current voltage of the electric energy meter is read; if the current voltage of the electric energy meter is lower than the preset value of the rated voltage, it is determined that the low voltage is caused by a failure of the metering device; for example, in an embodiment of the present invention, if the current voltage of the electric energy meter is significantly lower than about one times the rated voltage, and the user has not submitted an opinion ticket or a complaint ticket on the 95598 customer service platform, it is determined that the customer has a metering device failure, an abnormal handling ticket is issued, and the on-site management work is carried out.

[0061] In addition, for the power supply substation, if the substation total meter has low voltage for n consecutive days, the substation is judged to have low voltage; if multiple households in the substation have low voltage for more than n consecutive days, and the real-time voltage of the electric energy meter is lower than the rated voltage, the substation is judged to have low voltage, and an on-site abnormal handling work order is dispatched.

[0062] See also Figure 2 As shown, in an embodiment of the present invention, a low voltage analysis and judgment system based on electric energy data analysis is also provided, and the above method is applied; the low voltage analysis and judgment system based on electric energy data analysis includes: an acquisition module, a preprocessing module, a calculation module, a first judgment module and a second judgment module; wherein the acquisition module is used to obtain daily user voltage data and the rated voltage of the user voltage data; the preprocessing module is used to preprocess the user voltage data; the calculation module is used to obtain the average voltage of the user voltage data after preprocessing; the first judgment module is used to judge whether the user voltage is low voltage according to the rated voltage and the average voltage; the second judgment module is used to read the current voltage of the electric energy meter when low voltage occurs for n consecutive days, and judge the current voltage of the electric energy meter with the rated voltage;

[0063] If the current voltage of the electric energy meter is lower than the preset value of the rated voltage, it is determined that the low voltage condition is caused by a fault in the metering device.

[0064] The above-mentioned preprocessing module includes a sorting submodule, a screening submodule and a filtering submodule; wherein the sorting submodule is used to sort the user voltage data according to the size of the data value; the screening submodule is used to remove the first preset number of minimum values ​​from the user voltage data to obtain the remaining voltage data; the filtering submodule is used to filter the second preset number of minimum values ​​from the remaining voltage data as the target voltage data.

[0065] In summary, the embodiment of the present invention provides a low voltage analysis method and system based on electric energy data analysis based on the electricity consumption information collection system; based on this, it is helpful to subsequently design and develop the low voltage monitoring and early warning system function based on electric energy data analysis in the form of micro-applications, form key monitoring details and abnormal work order details, and the voltage data information directly locates the abnormal time period, establishes a four-level monitoring system of "province-city-county-institute", supports abnormal monitoring statistics and detailed display, and after the abnormal work order is generated, it is sent to the handheld device of the operation and maintenance personnel, who will carry the handheld device to the site to eliminate the fault, and at the same time enter the cause of the abnormality and feedback to the electricity consumption information collection system for verification. If the verification passes, the work order is archived, and if the verification fails, a new abnormal work order is generated.

[0066] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0067] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A low voltage analysis method based on electric energy data analysis. It is characterized in that The steps include: S1. Obtain daily user voltage data and the rated voltage of the user voltage data; S2. Preprocessing the user voltage data; S3, obtaining the average voltage of the pre-processed user voltage data; S4. Determine whether the user voltage is a low voltage according to the rated voltage and the average voltage.

2. According to the low voltage judgment method based on electric energy data analysis described in claim 1, It is characterized in that Also includes: S5. If low voltage occurs for n consecutive days, the current voltage of the electric energy meter is read and compared with the rated voltage; If the current voltage of the electric energy meter is lower than the preset value of the rated voltage, it is determined that the low voltage condition is caused by a failure of the metering device.

3. According to claim 1, a low voltage analysis method based on electric energy data analysis, It is characterized in that The step S2 specifically includes: Sorting the user voltage data according to the size of the data value; Removing a first preset number of minimum values ​​from the user voltage data to obtain remaining voltage data; A second preset number of minimum values ​​are selected from the remaining voltage data as target voltage data.

4. According to claim 3, a low voltage analysis method based on electric energy data analysis, It is characterized in that The step S3 specifically includes: calculating the average voltage of the target voltage data.

5. According to the low voltage judgment method based on electric energy data analysis described in claim 1, It is characterized in that The step S4 specifically includes: Obtaining a difference between the rated voltage and the average voltage; The difference is compared with the rated voltage, and if the difference is lower than a preset ratio of the rated voltage, the user voltage is determined to be a low voltage.

6. A low voltage analysis system based on electric energy data analysis, It is characterized in that Apply the method described in any one of claims 1 to 5; The low voltage analysis and judgment system based on electric energy data analysis includes: an acquisition module, a preprocessing module, a calculation module and a first judgment module; The acquisition module is used to acquire daily user voltage data and the rated voltage of the user voltage data; The preprocessing module is used to preprocess the user voltage data; The calculation module is used to obtain the average voltage of the pre-processed user voltage data; The first judgment module is used to judge whether the user voltage is low voltage according to the rated voltage and the average voltage.

7. A low voltage analysis system based on electric energy data analysis according to claim 6, It is characterized in that Also includes a second judgment module; The second judgment module is used to read the current voltage of the electric energy meter when low voltage occurs for n consecutive days, and judge the current voltage of the electric energy meter with the rated voltage; If the current voltage of the electric energy meter is lower than the preset value of the rated voltage, it is determined that the low voltage condition is caused by a failure of the metering device.

8. A low voltage analysis system based on electric energy data analysis according to claim 6, It is characterized in that The pre-processing module includes a sorting submodule, a screening submodule and a sieving submodule; The sorting submodule is used to sort the user voltage data according to the size of the data value; The screening submodule is used to remove a first preset number of minimum values ​​from the user voltage data to obtain remaining voltage data; The screening submodule is used to screen a second preset number of minimum values ​​from the remaining voltage data as target voltage data.

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