CN113567720A - Beidou-based serial direct current half-wave electricity stealing behavior detection method and system - Google Patents
Beidou-based serial direct current half-wave electricity stealing behavior detection method and system Download PDFInfo
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Abstract
The invention discloses a Beidou-based serial direct current half-wave electricity stealing behavior detection method and system, which comprises the following steps: acquiring load current of a user side in an abnormal line based on a Beidou short message communication mode; carrying out harmonic content analysis on the load current to obtain a direct current component value; and judging whether the direct current injection amount is abnormal or not according to the direct current component value so as to obtain a judgment result of the series direct current half-wave electricity stealing behavior. By analyzing and comparing harmonic components of the current of the power utilization loop, whether the direct current injection condition exists or not can be found and confirmed in time.
Description
Technical Field
The invention relates to the technical field of power utilization monitoring, in particular to a serial direct current half-wave power stealing behavior detection method and system based on Beidou.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the process of providing power service in a power system, the problem of inconsistent power consumption and actual consumption often occurs, which is caused by the loss of the transformer and the line, on one hand, and the electricity stealing, on the other hand. At present, the electricity stealing by the serial half-wave is mostly seen in low-power and low-voltage users. A user adds a half-wave rectification circuit at the rear load side of the electric energy meter to convert sine wave current in a power supply circuit into half-wave current, and a direct current component in a half-wave signal enables an iron core of a current transformer to be saturated, so that metering is inaccurate, and the purpose of stealing electricity is achieved.
In the current anti-electricity-stealing measures, an anti-electricity-stealing means aiming at components is common, such as perfecting seals of a meter, a metering cabinet and a meter tail, adding an anti-electricity-stealing cap on a low-voltage sleeve of a transformer, adopting an anti-electricity-stealing meter box, replacing a low-voltage line with an insulated wire or a cable, sealing a low-voltage outlet wire of the transformer and the like.
However, the traditional electric larceny prevention troubleshooting method has no universality and network globality, cannot comprehensively and accurately identify electric larceny behaviors, cannot accurately locate electric larceny users, and is low in accuracy and efficiency of electric larceny prevention work. In addition, in the face of a plurality of suspected electricity stealing users who are remote and difficult to check the electricity stealing, effective electricity stealing prevention equipment is not available, and the effective electricity stealing prevention work is difficult to carry out.
Disclosure of Invention
In order to solve the problems, the invention provides a Beidou-based serial direct current half-wave electricity stealing behavior detection method and system, and the situation that whether direct current injection exists in a line can be found in time by analyzing and comparing harmonic components of current of an electricity utilization loop.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a Beidou based serial direct current half-wave electricity stealing behavior detection method, which comprises the following steps:
acquiring load current of a user side in an abnormal line based on a Beidou short message communication mode;
carrying out harmonic content analysis on the load current to obtain a direct current component value;
and judging whether the direct current injection amount is abnormal or not according to the direct current component value so as to obtain a judgment result of the series direct current half-wave electricity stealing behavior.
As an alternative embodiment, the abnormal line is determined by the line loss amount of the line.
As an alternative embodiment, the abnormal line is determined by comparing the line loss amount of the line with the contemporaneous line loss rate and the line loss average value.
As an alternative embodiment, when the line loss amount exceeds the synchronous line loss rate and exceeds the line loss average value, the abnormal line is judged.
As an alternative embodiment, the process of determining whether the dc injection amount is abnormal includes: and if the direct current component value exceeds the preset direct current injection threshold value, the direct current injection amount is abnormal, and an alarm signal is sent out.
As an optional implementation mode, after the judgment result of the serial direct current half-wave electricity stealing behavior is obtained, the alarm signal is sent to the early warning master station through the Beidou short message communication mode according to the judgment result of the serial direct current half-wave electricity stealing behavior.
As an optional implementation mode, after the judgment result of the serial direct current half-wave electricity stealing behavior is obtained, the suspicious users are screened according to the judgment result of the serial direct current half-wave electricity stealing behavior.
In a second aspect, the invention provides a serial direct current half-wave electricity stealing behavior detection system based on Beidou, which comprises:
the acquisition module is configured to acquire the load current of the user side in the abnormal line based on the Beidou short message communication mode;
the analysis module is configured to perform harmonic content analysis on the load current to obtain a direct current component value;
and the judging module is configured to judge whether the direct current injection amount is abnormal according to the direct current component value so as to obtain a serial direct current half-wave electricity stealing behavior judging result.
In a third aspect, the present invention provides an electronic device comprising a memory and a processor, and computer instructions stored on the memory and executed on the processor, wherein when the computer instructions are executed by the processor, the method of the first aspect is performed.
In a fourth aspect, the present invention provides a computer readable storage medium for storing computer instructions which, when executed by a processor, perform the method of the first aspect.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts a combined electricity utilization inspection scheme comprising an online detection terminal and a service platform aiming at the direct current injection, analyzes and compares the waveform and harmonic components of the current of the electricity utilization loop, can find and confirm whether the direct current injection condition exists, judges the series direct current half-wave electricity stealing behavior, and simultaneously screens suspicious users according to the electricity stealing judgment result of the detected node.
The combined electricity utilization tester has a direct current testing function and can be used for conveniently and rapidly testing direct current injection.
The Beidou satellite communication system has the Beidou communication function, can transmit the monitored fixed-point and timing data to the background master station for analysis and processing, and can improve the communication efficiency and the positioning accuracy.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a flow chart of a serial direct current half-wave electricity stealing behavior detection method based on the big dipper in embodiment 1 of the present invention.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be understood that the terms "comprises" and "comprising", and any variation 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.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
As shown in fig. 1, this embodiment provides a serial direct current half-wave electricity stealing behavior detection method based on big dipper, including:
acquiring load current of a user side in an abnormal line based on a Beidou short message communication mode;
carrying out harmonic content analysis on the load current to obtain a direct current component value;
and judging whether the direct current injection amount is abnormal or not according to the direct current component value so as to obtain a judgment result of the series direct current half-wave electricity stealing behavior.
The mode that early warning main website, monitor platform and testing terminal combined together is adopted to this embodiment, in electric power anti-theft platform, inserts the anti-electricity-stealing mode based on big dipper wide area synchronous data to detect to half-wave direct current electricity-stealing behavior.
In this embodiment, detection terminal possesses big dipper location and data communication function, according to big dipper time service/locate function, carries out real-time transmission to the half-wave current data who gathers, transmits it to monitor platform and carries out the detection diagnosis to electricity is stolen to the serial direct current half-wave, can also pinpoint suspicious user's position simultaneously.
In this embodiment, for the comprehensive and accurate acquisition of load current, install detection terminal on the 380V circuit of platform district, power consumption measurement and the long-range real-time monitoring of actual load are carried out to the platform district power consumer that low confession low count, high confession low count corresponds.
In this embodiment, after the load current data of the user side in the abnormal line is collected by the detection terminal, the Beidou channel is used for data interaction, and the data is sent to the monitoring platform for analysis.
In the embodiment, the abnormal line is diagnosed by the monitoring platform, and the station area and the line with abnormal line loss are determined by the monitoring platform, so that the direction is provided for the anti-theft work, the blindness of the anti-electricity-theft work is reduced, and the work efficiency is improved.
Preferably, the line loss of the line is monitored through the monitoring platform, and the abnormal line is determined according to the line loss, the synchronous line loss rate and the line loss average value;
preferably, when the line loss amount exceeds the synchronous line loss rate and the line loss exceeds the average value of the line loss of the corresponding city, the line is judged to be the station area and the line with the abnormal line loss.
In the embodiment, current data of a user side in an abnormal line is obtained to generate an anti-electricity-stealing truth table, harmonic content is obtained according to analysis and comparison of current waveform and harmonic in a power utilization loop, whether direct current injection quantity is abnormal or not is judged according to the harmonic content, so that the condition of electricity stealing of serial direct current half-wave is obtained, and meanwhile, a monitoring platform can automatically screen suspicious users according to the electricity stealing judgment result of a tested node.
Preferably, the harmonic content of the load current can be obtained by a Fourier series decomposition method.
Preferably, the field operation and maintenance personnel can also use the field inspection tool to inspect and obtain evidence according to the anti-electricity-stealing work flow.
Preferably, when the detected direct current component exceeds a set direct current injection threshold value, an alarm signal is sent to the early warning master station.
Preferably, when the detected direct current component exceeds 5%, an alarm signal is sent to the early warning main station.
In this embodiment, the early warning main station is docked with the anti-electricity-stealing early warning platform of the power company, and after the monitoring platform obtains the serial direct current half-wave electricity-stealing judgment result, the alarm data is sent to the early warning main station through Beidou short message communication.
In this embodiment, the data interaction and communication among the early warning master station, the monitoring platform and the detection terminal adopt Beidou short message communication, so that the communication efficiency and the positioning accuracy can be improved.
Example 2
This embodiment provides a cluster direct current half-wave electricity stealing behavior detecting system based on big dipper, includes:
the acquisition module is configured to acquire the load current of the user side in the abnormal line based on the Beidou short message communication mode;
the analysis module is configured to perform harmonic content analysis on the load current to obtain a direct current component value;
and the judging module is configured to judge whether the direct current injection amount is abnormal according to the direct current component value so as to obtain a serial direct current half-wave electricity stealing behavior judging result.
It should be noted that the modules correspond to the steps described in embodiment 1, and the modules are the same as the corresponding steps in the implementation examples and application scenarios, but are not limited to the disclosure in embodiment 1. It should be noted that the modules described above as part of a system may be implemented in a computer system such as a set of computer-executable instructions.
In further embodiments, there is also provided:
an electronic device comprising a memory and a processor and computer instructions stored on the memory and executed on the processor, the computer instructions when executed by the processor performing the method of embodiment 1. For brevity, no further description is provided herein.
It should be understood that in this embodiment, the processor may be a central processing unit CPU, and the processor may also be other general purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate arrays FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and so on. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include both read-only memory and random access memory, and may provide instructions and data to the processor, and a portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.
A computer readable storage medium storing computer instructions which, when executed by a processor, perform the method described in embodiment 1.
The method in embodiment 1 may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A serial direct current half-wave electricity stealing behavior detection method based on Beidou is characterized by comprising the following steps:
acquiring load current of a user side in an abnormal line based on a Beidou short message communication mode;
carrying out harmonic content analysis on the load current to obtain a direct current component value;
and judging whether the direct current injection amount is abnormal or not according to the direct current component value so as to obtain a judgment result of the series direct current half-wave electricity stealing behavior.
2. The Beidou-based serial direct current half-wave electricity stealing behavior detection method according to claim 1, characterized in that the abnormal line is determined by line loss of the line.
3. The Beidou-based serial direct current half-wave electricity stealing behavior detection method as claimed in claim 1, wherein the abnormal line is determined according to the comparison of the line loss amount of the line with the line loss rate and the line loss average value in the same period.
4. The Beidou-based serial direct current half-wave electricity stealing behavior detection method according to claim 3, characterized in that when the line loss exceeds a synchronous line loss rate and exceeds a line loss average value, an abnormal line is judged.
5. The Beidou-based serial direct current half-wave electricity stealing behavior detection method according to claim 1, wherein the judgment process of whether the direct current injection amount is abnormal comprises the following steps: and if the direct current component value exceeds the preset direct current injection threshold value, the direct current injection amount is abnormal, and an alarm signal is sent out.
6. The Beidou-based serial direct current half-wave electricity stealing behavior detection method according to claim 1, characterized in that after a serial direct current half-wave electricity stealing behavior judgment result is obtained, an alarm signal is sent to an early warning master station through a Beidou short message communication mode according to the serial direct current half-wave electricity stealing behavior judgment result.
7. The Beidou-based serial-direct-current half-wave electricity stealing behavior detection method according to claim 1, characterized in that after a serial-direct-current half-wave electricity stealing behavior judgment result is obtained, suspicious users are screened according to the serial-direct-current half-wave electricity stealing behavior judgment result.
8. The utility model provides a cluster direct current half-wave electricity stealing behavior detecting system based on big dipper which characterized in that includes:
the acquisition module is configured to acquire the load current of the user side in the abnormal line based on the Beidou short message communication mode;
the analysis module is configured to perform harmonic content analysis on the load current to obtain a direct current component value;
and the judging module is configured to judge whether the direct current injection amount is abnormal according to the direct current component value so as to obtain a serial direct current half-wave electricity stealing behavior judging result.
9. An electronic device comprising a memory and a processor and computer instructions stored on the memory and executed on the processor, the computer instructions when executed by the processor performing the method of any of claims 1-7.
10. A computer-readable storage medium storing computer instructions which, when executed by a processor, perform the method of any one of claims 1 to 7.
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Inventor after: Wang Jinliang Inventor after: Qi Yize Inventor after: Li Sai Inventor after: Wu Shuchang Inventor after: Zhao Zhitou Inventor after: Wang Jingfei Inventor after: Fan Youpeng Inventor after: Ren Wei Inventor after: Luo Xinting Inventor before: Qi Yize Inventor before: Wang Jinliang Inventor before: Li Sai Inventor before: Zhao Zhitou Inventor before: Wang Jingfei Inventor before: Fan Youpeng Inventor before: Wu Shuchang Inventor before: Ren Wei Inventor before: Luo Xinting |
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Effective date of registration: 20231114 Address after: 250002, No. 500, South Second Ring Road, Shizhong District, Shandong, Ji'nan Applicant after: SHANDONG ELECTRIC POWER College Applicant after: STATE GRID CORPORATION TECHNICAL College BRANCH Address before: 250002, No. 500, South Second Ring Road, Shizhong District, Shandong, Ji'nan Applicant before: Qi Yize Applicant before: SHANDONG ELECTRIC POWER College Applicant before: STATE GRID CORPORATION TECHNICAL College BRANCH |
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