CN113049863A - Load monitoring unit-based electricity stealing user segmented positioning method - Google Patents

Load monitoring unit-based electricity stealing user segmented positioning method Download PDF

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Publication number
CN113049863A
CN113049863A CN202110280258.1A CN202110280258A CN113049863A CN 113049863 A CN113049863 A CN 113049863A CN 202110280258 A CN202110280258 A CN 202110280258A CN 113049863 A CN113049863 A CN 113049863A
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China
Prior art keywords
monitoring unit
load monitoring
electricity stealing
user
metering device
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CN202110280258.1A
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Inventor
范建华
徐东杰
赵磊
姚兴东
赵传强
杨顺
�田�浩
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Qingdao Topscomm Communication Co Ltd
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Qingdao Topscomm Communication Co Ltd
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Priority to CN202110280258.1A priority Critical patent/CN113049863A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/24—Arrangements for avoiding or indicating fraudulent use
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/001—Measuring real or reactive component; Measuring apparent energy
    • G01R21/002—Measuring real component
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/001—Measuring real or reactive component; Measuring apparent energy
    • G01R21/003—Measuring reactive component

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention discloses a power stealing user sectional positioning method based on a load monitoring unit, which comprises the steps of firstly judging a point distribution mode of the load monitoring unit and an application mode of the load monitoring unit according to a field topological graph; then, according to the line load fluctuation speed and the network quality, determining the sampling period and the communication parameters of the load monitoring unit; and then obtaining an electricity stealing analysis result of the meter installed on the incoming line side or the outgoing line side of the transformer according to the current comparison difference or the power comparison difference between the load monitoring unit and the meter. According to the method, the accurate analysis of the electricity stealing behavior is realized according to the comparison of the load monitoring unit and the current or power of the meter, the electricity stealing information is kept in detail, effective evidence is kept for the site confirmation of the subsequent electricity stealing behavior, and the method has the advantages of easiness in realization and small engineering quantity and has good engineering practicability.

Description

Load monitoring unit-based electricity stealing user segmented positioning method
Technical Field
The invention relates to the field of anti-electricity-stealing of a power distribution network, in particular to a segmented positioning method for electricity-stealing users based on a load monitoring unit.
Background
The traditional manual investigation mode has high cost and low efficiency for scenes with complicated lines and a plurality of special users, and cannot monitor suspected users in real time by means of the manual investigation mode, so that the problem of electricity stealing of overhead lines cannot be radically solved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a power stealing user sectional positioning method based on a load monitoring unit, which realizes the accurate analysis of the power stealing behavior according to the comparison of the load monitoring unit and the current or power of a user metering device, retains the power stealing information in detail, retains the effective evidence for the field confirmation of the subsequent power stealing behavior, has the advantages of easy realization and small engineering quantity, and has good engineering practicability.
In order to achieve the purpose, the invention provides a power stealing user sectional positioning method based on a load monitoring unit, which comprises the following steps:
step 1: judging a point distribution mode of the single-point monitoring load monitoring unit according to the field topological graph;
step 2: judging the performance parameters of the single-point monitoring load monitoring unit according to the line load fluctuation speed and the network quality and the set sampling interval;
and step 3: judging the comparison type of the single-point monitoring load monitoring unit according to the point distribution mode of the single-point monitoring load monitoring unit, and executing the step 5 if the comparison type is high-supply high-count; if the high supply and low count is performed, executing step 6;
and 4, step 4: obtaining an electricity stealing analysis result according to the current comparison difference between the load monitoring unit and the user metering device;
and 5: and acquiring an electric larceny analysis result according to the power comparison difference between the load monitoring unit and the user metering device.
Further, the point distribution mode in the step 1 is divided into two point distribution modes of high supply and low supply according to the installation position of the user metering device in the transformer.
Further, in step 2, the sampling intervals are divided into 1 minute, 5 minutes, 15 minutes, 30 minutes and 60 minutes.
Further, the performance parameters of the load monitoring unit in step 2 include a wireless transmission protocol and an infinite transmission mode, wherein the wireless transmission protocol is divided into a 376.1 protocol and a 689 protocol, and the wireless transmission mode is divided into three network modes, namely GSM, WCDMA and LTE.
Further, the current comparison manner of step 4 is as follows:
if IF1>IAKCTThen there is a possibility of electricity theft;
if IF1＝IAKCTNo electricity stealing behavior exists;
wherein: i isF1For load monitoring unit current values mounted on the front end of the transformer, IAMeasuring the current sample value of the device for the user, KCTThe device transformation ratio is metered for the user.
Further, the power comparison of step 5 is as follows:
if it is
Figure BDA0002978529590000011
There is a possibility of electricity theft;
if it is
Figure BDA0002978529590000012
No electricity stealing behavior exists;
wherein U is 10kV, IF1、IF2、IF3Respectively installing three-phase load monitoring unit current sampling values at the front end of the transformer; p is the active power of the user metering device, and Q is the reactive power of the user metering device.
The invention has the beneficial effects that: according to the method, the accurate analysis of the electricity stealing behavior is realized according to the comparison of the load monitoring unit and the current or the power of the user metering device, the electricity stealing information is kept in detail, effective evidence is kept for the field confirmation of the subsequent electricity stealing behavior, the method has the advantages of easiness in realization and small engineering quantity, and has good engineering practicability.
Drawings
Fig. 1 is a system flow chart of the power stealing user segmented positioning method based on the load monitoring unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
With reference to fig. 1, a method for sectionally positioning electricity stealing users based on a load monitoring unit comprises the following steps:
step 1: according to the field topological graph, a point distribution mode of the single-point monitoring load monitoring unit is determined, and the point distribution mode can be divided into a high-supply high meter and a high-supply low meter.
Step 2: and determining the performance parameters of the single-point monitoring load monitoring unit according to the line load fluctuation speed and the network quality. The data type in the performance parameters is frozen data, the performance parameters comprise a wireless transmission protocol and an infinite transmission mode, the wireless transmission protocol is divided into a 376.1 protocol and a 689 protocol, the wireless transmission mode is divided into three network modes of GSM, WCDMA and LTE, LTE is preferentially adopted for network transmission, WCDMA is adopted, and GSM is finally adopted.
And step 3: judging the comparison type of the single-point monitoring load monitoring unit according to the point distribution mode of the single-point monitoring load monitoring unit, and executing the step 4 if the comparison type is high-supply high-count; if the high supply and low count is performed, executing the step 5;
and 4, step 4: and acquiring an electricity stealing analysis result of the user metering device arranged below the incoming line side of the transformer according to the current comparison difference between the load monitoring unit and the user metering device. If the current difference is larger than 10A, the suspicion of electricity stealing is preliminarily judged.
And 5: and acquiring an electricity stealing analysis result of the user metering device arranged below the outgoing line side of the transformer according to the power comparison difference between the load monitoring unit and the user metering device. If the current difference is larger than 10KW, the suspicion of electricity stealing is preliminarily judged.
The above-mentioned embodiments are illustrative of the specific embodiments of the present invention, and are not restrictive, and those skilled in the relevant art can make various changes and modifications to obtain corresponding equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should be included in the scope of the present invention.

Claims (6)

1. A power stealing user segmented positioning method based on a load monitoring unit is characterized by comprising the following steps:
step 1: judging a point distribution mode of the single-point monitoring load monitoring unit according to the field topological graph;
step 2: judging the performance parameters of the single-point monitoring load monitoring unit according to the line load fluctuation speed and the network quality and the set sampling interval;
and step 3: judging the comparison type of the single-point monitoring load monitoring unit according to the point distribution mode of the single-point monitoring load monitoring unit, and executing the step 4 if the comparison type is high-supply high-count; if the high supply and low count is performed, executing the step 5;
and 4, step 4: obtaining an electricity stealing analysis result according to the current comparison difference between the load monitoring unit and the user metering device;
and 5: and acquiring an electric larceny analysis result according to the power comparison difference between the load monitoring unit and the user metering device.
2. The method for sectionally positioning electricity stealing users based on the load monitoring unit as claimed in claim 1, wherein the distribution manner in step 1 is divided into two distribution manners of high supply meter and high supply meter according to the installation position of the user metering device in the transformer, wherein the user metering device of the high supply meter is installed at the incoming line side of the transformer, and the user metering device of the high supply meter is installed at the outgoing line side of the transformer.
3. The method for sectionally positioning the electricity stealing users based on the load monitoring unit as claimed in claim 1, wherein the sampling interval in the step 2 is divided into 1 minute, 5 minutes, 15 minutes, 30 minutes and 60 minutes.
4. The method as claimed in claim 1, wherein the performance parameters of the load monitoring unit in step 2 include wireless transmission protocol and wireless transmission mode, wherein the wireless transmission protocol is classified into 376.1 protocol and 689 protocol, and the wireless transmission mode is classified into three network systems of GSM, WCDMA and LTE.
5. The method for sectionally positioning the electricity stealing users based on the load monitoring unit as claimed in claim 1, wherein the current comparison manner of the step 4 is as follows:
if IF1>IAKCTThen there is a possibility of electricity theft;
if IF1＝IAKCTNo electricity stealing behavior exists;
wherein: i isF1For load monitoring unit current values mounted on the front end of the transformer, IAMeasuring the current sample value of the device for the user, KCTThe device transformation ratio is metered for the user.
6. The method for sectionally positioning electricity stealing users based on the load monitoring unit as claimed in claim 1, wherein the power comparison manner of step 5 is as follows:
if it is
Figure FDA0002978529580000011
There is a possibility of electricity theft;
if it is
Figure FDA0002978529580000012
No electricity stealing behavior exists;
wherein U is 10kV, IF1、IF2、IF3Respectively installing three-phase load monitoring unit current sampling values at the front end of the transformer; p is the active power of the user metering device, and Q is the reactive power of the user metering device.
CN202110280258.1A 2021-03-16 2021-03-16 Load monitoring unit-based electricity stealing user segmented positioning method Withdrawn CN113049863A (en)

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CN113554286A (en) * 2021-07-06 2021-10-26 安徽明生恒卓科技有限公司 10kV line loss fine calculation analysis method
CN114217160A (en) * 2022-02-18 2022-03-22 青岛鼎信通讯股份有限公司 Method for installing and positioning load monitoring unit of medium-voltage distribution line

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113554286A (en) * 2021-07-06 2021-10-26 安徽明生恒卓科技有限公司 10kV line loss fine calculation analysis method
CN114217160A (en) * 2022-02-18 2022-03-22 青岛鼎信通讯股份有限公司 Method for installing and positioning load monitoring unit of medium-voltage distribution line

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Application publication date: 20210629