CN112557745A - Power superposition comparison system and method for line loss monitoring - Google Patents

Power superposition comparison system and method for line loss monitoring Download PDF

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Publication number
CN112557745A
CN112557745A CN202011422547.2A CN202011422547A CN112557745A CN 112557745 A CN112557745 A CN 112557745A CN 202011422547 A CN202011422547 A CN 202011422547A CN 112557745 A CN112557745 A CN 112557745A
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CN
China
Prior art keywords
power
data
line loss
monitoring
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011422547.2A
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Chinese (zh)
Inventor
闫福录
杜瑞
梁晅
滑勉
董建玲
马军
李海洋
张俊涛
王凯武
闫沛然
李婷
付文浩
李健
刘再红
程建新
王尧柱
欧阳正
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linfen Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Original Assignee
Shenzhen Tchuin Technology Development Co ltd
Information and Telecommunication Branch of State Grid Shanxi Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Tchuin Technology Development Co ltd, Information and Telecommunication Branch of State Grid Shanxi Electric Power Co Ltd filed Critical Shenzhen Tchuin Technology Development Co ltd
Priority to CN202011422547.2A priority Critical patent/CN112557745A/en
Publication of CN112557745A publication Critical patent/CN112557745A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00Arrangements for measuring electric power or power factor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/061Details of electronic electricity meters
    • G01R22/066Arrangements for avoiding or indicating fraudulent use

Abstract

The invention relates to the technical field of intelligent electricity stealing prevention, in particular to a power superposition comparison system and a power superposition comparison method for line loss monitoring. The invention enhances the real-time monitoring of the power load condition of a large user or a user with metering equipment arranged at a user side. The electricity utilization data can be automatically analyzed and judged, electricity stealing suspects are determined firstly, and electricity utilization inspectors are dispatched to conduct on-site inspection and treatment rapidly, so that electricity stealing molecules have no time and no chance to destroy on-site electricity stealing evidences, the line loss rate is reduced, and the power supply income is improved.

Description

Power superposition comparison system and method for line loss monitoring
Technical Field
The invention relates to the technical field of intelligent electricity stealing prevention, in particular to a power superposition comparison system and method for line loss monitoring.
Background
Electric energy is indispensable energy in social production and people's life, however, under the drive of interests, some enterprises (large users use electricity) frequently adopt improper means to steal the electric energy. This not only brings huge economic loss for the electric power enterprise, still influences the steady operation of electric wire netting and normal social order. Therefore, the electricity stealing behavior is always the focus of the work of the power enterprises. The traditional electricity stealing detection only depends on a simple statistical method and depends on the field investigation of manpower, and the method not only consumes a large amount of manpower and material resources, but also has low inspection accuracy and difficult field evidence obtaining.
The current big power consumption user total number is huge for current power consumption information acquisition data volume is huge, thereby hardly discovers the action of stealing electricity in huge data, leads to the power supply line loss rate high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses a power superposition comparison system and a power superposition comparison method for line loss monitoring, which are used for solving the problems in the background art.
The invention is realized by the following technical scheme:
the system comprises a data acquisition unit arranged on the secondary side of a transformer, wherein the data acquisition unit acquires three-phase power data of the secondary side, uploads the three-phase power data to a power load monitoring system main station through a wireless network and an electric energy meter communication protocol, and the power load monitoring system main station simultaneously acquires the secondary side data of a user and screens power utilization abnormity generated according to power sudden change so as to realize real-time monitoring of the power utilization state of the users in a transformer area.
Furthermore, the data collector is arranged on the side edge of the district electric meter and used for collecting secondary side three-phase power data.
Furthermore, the server of the power load monitoring system master station comprises a data layer, a service layer and a presentation layer which are sequentially arranged from bottom to top.
Furthermore, the data layer is used for realizing the storage of data through a relational database;
the service layer is used for providing component service support such as global universal business service, security service and the like;
the service layer is used for realizing specific service logic;
the presentation layer is used for providing a uniform service application operation interface and an information display window.
Furthermore, the service layer realizes service logic service and provides general technical support for the service layer.
Furthermore, the secondary side data of the user is obtained from an electric energy meter arranged at a collector of the user.
In a second aspect, the present invention discloses a power superposition comparison method for line loss monitoring, where the method is executed using the power superposition comparison system for line loss monitoring described in the first aspect, and the method includes the following steps:
s1, installing an electric energy meter on the secondary side of the user data collector;
s2, uploading the acquired sudden change power electricity consumption data to a load monitoring master station system;
s3 the load monitoring system main station collects the user electricity load change data as the comparison library;
s4, comparing the power sudden change load data uploaded by the collector in real time to obtain a corresponding load coincidence rate, and drawing a power superposition coincidence rate curve graph;
s5 shows the events and phenomena in the form of curves and reports, screens electricity stealing events and phenomena in time, and sends out alarms.
Furthermore, the method utilizes the power superposition of line loss monitoring to compare with the electric energy metering data collected by the system, performs unified analysis on the electric quantity, power and current data, and performs comprehensive analysis on different operation modes and user power failure events.
Furthermore, according to the method, the historical data and the load curve change state are combined to remove the hidden pseudo data in the line loss calculation, and unified judgment is carried out to find the electricity stealing phenomenon.
The invention has the beneficial effects that:
the invention enhances the real-time monitoring of the power load condition of a large user or a user with metering equipment arranged at a user side. The electricity utilization data can be automatically analyzed and judged, the original method for checking the electricity stealing without purpose and by scattering a large network is changed, the suspected person of electricity stealing is determined, and then electricity inspection personnel are dispatched to the site to check the place quickly, so that the electricity stealing molecules have no time and no chance to destroy the evidence of the site electricity stealing, and the serious check places cause the electricity stealing molecules to obtain due penalty, thereby reducing the line loss rate and improving the power supply income.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of a power superposition contrast system for line loss monitoring;
fig. 2 is a schematic step diagram of a power superposition comparison method for line loss monitoring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The disclosed power stack contrast system of line loss monitoring as shown in fig. 1 of this embodiment, the system is including installing the data collection station in the transformer secondary side, data collection station gathers secondary side three-phase power data, uploads three-phase power data to power load monitoring system main website through wireless network and electric energy meter communication stipulation, power load monitoring system main website acquires user's secondary side data simultaneously, screens the power consumption that takes place unusually according to the power sudden change, realizes the real-time supervision of platform district user power consumption state.
In this embodiment, the data collector is arranged on a side of the electric meter in the distribution room and is used for collecting secondary side three-phase power data. The secondary side data of the user is obtained from an electric energy meter arranged at a collector of the user.
The server of the master station of the power load monitoring system disclosed in this embodiment includes a data layer, a service layer, and a presentation layer, which are sequentially arranged from bottom to top.
Furthermore, the data layer realizes the storage of data through a relational database;
the service layer provides component service support such as global universal business service and security service;
the service layer is used for realizing specific service logic;
the presentation layer provides a uniform service application operation interface and an information display window.
In this embodiment, the service layer implements service logic services, and provides a general technical support for the service layer.
Example 2
The embodiment discloses a power superposition comparison method for line loss monitoring as shown in fig. 2, which includes the following steps:
s1, installing an electric energy meter on the secondary side of the user data collector;
s2, uploading the acquired sudden change power electricity consumption data to a load monitoring master station system;
s3 the load monitoring system main station collects the user electricity load change data as the comparison library;
s4, comparing the power sudden change load data uploaded by the collector in real time to obtain a corresponding load coincidence rate, and drawing a power superposition coincidence rate curve graph;
s5 shows the events and phenomena in the form of curves and reports, screens electricity stealing events and phenomena in time, and sends out alarms.
The embodiment utilizes the power superposition of line loss monitoring to compare with the electric energy metering data collected by the system, performs unified analysis on electric quantity, power and current data, and performs comprehensive analysis on different operation modes and user power failure events.
According to the embodiment, the historical data and the load curve change state are combined to remove the hidden pseudo data in the line loss calculation, and unified judgment is carried out to find the electricity stealing phenomenon.
Example 3
The embodiment discloses an intelligent load monitoring system, which consists of a special transformer user line loss monitoring device (a data acquisition unit) and a line loss monitoring system main station.
And a data acquisition unit in the user line loss monitoring device acquires and processes the power utilization information of the secondary side of the user, stores the current three-phase current, voltage, instantaneous active power equivalent value of the secondary side, reads the value of the electric energy meter by utilizing RS-485, performs data transmission by using a wireless communication technology, and uploads the data to a monitoring system master station.
The monitoring system main station judges whether a user has power utilization abnormity or not by comparing the power sudden change load curves, and real-time monitoring of the power utilization state of the user is realized. The intelligent power grid intelligent monitoring system has the advantages that the electricity stealing behavior is effectively monitored, the current situation of electricity stealing prevention is improved, a large amount of economic loss is saved, the coordinated development of the power grid and users is promoted, and the intelligent power grid is more informationized, automated and interactive.
Example 4
The embodiment discloses a line loss monitoring method, which comprises the steps of formulating a data abnormity judgment rule by analyzing historical data of power consumption information, and accurately positioning power consumption abnormity. The electric quantity, power and current data are uniformly analyzed by utilizing the electric energy metering data collected by the power superposition comparison system for line loss monitoring, different operation modes and power failure events of users are comprehensively analyzed, the pseudo data hidden in line loss calculation is eliminated by means of historical data and the load curve change state, and the phenomenon of electricity stealing can be found by uniformly judging.
The monitoring system monitors various power customers, particularly power consumers, and gives a warning when an abnormal condition is found, so that the power customers can immediately go to the site to check, and the previous human-sea tactics are saved. The method comprises the steps of installing high-speed synchronous acquisition equipment in a high-loss line and a high-loss low-voltage transformer area, acquiring node voltage and sudden change power with time scales, analyzing and checking the voltage and power transmission consistency on the line in real time, and accurately positioning the intelligent electric meter with abnormal metering and the electricity stealing phenomenon of a possible bypassing metering device.
In conclusion, the invention enhances the real-time monitoring of the power load condition of the large user or the user with the metering equipment arranged at the user end. The electricity utilization data can be automatically analyzed and judged, the original method for checking the electricity stealing without purpose and by scattering a large network is changed, the suspected person of electricity stealing is determined, and then electricity inspection personnel are dispatched to the site to check the place quickly, so that the electricity stealing molecules have no time and no chance to destroy the evidence of the site electricity stealing, and the serious check places cause the electricity stealing molecules to obtain due penalty, thereby reducing the line loss rate and improving the power supply income.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (9)

1. The utility model provides a power stack contrast system of line loss monitoring, a serial communication port, the system is including installing the data collection station in the transformer secondary side, data collection station gathers secondary side three-phase power data, uploads three-phase power data to power load monitoring system main website through wireless network and electric energy meter communication stipulation, power load monitoring system main website acquires user's secondary side data simultaneously, screens the power consumption anomaly that takes place according to the power sudden change, realizes the real-time supervision of platform district user power consumption state.
2. The line loss monitoring power superposition comparison system according to claim 1, wherein the data collector is arranged on the side of the district electric meter and used for collecting secondary side three-phase power data.
3. The system for power superposition comparison in line loss monitoring according to claim 1, wherein the server of the primary station of the power load monitoring system comprises a data layer, a service layer and a presentation layer, which are arranged in sequence from bottom to top.
4. The line loss monitoring power superposition comparison system according to claim 3, wherein the data layer is used for realizing data storage through a relational database;
the service layer is used for providing component service support such as global universal business service, security service and the like;
the service layer is used for realizing specific service logic;
the presentation layer is used for providing a uniform service application operation interface and an information display window.
5. The system according to claim 1, wherein the service layer implements service logic services to provide general technical support for the service layer.
6. The system of claim 1, wherein the secondary data of the user is obtained from an electric energy meter installed at a user's collector.
7. A power superposition comparison method for line loss monitoring, when executed using a power superposition comparison system for line loss monitoring according to any of claims 1-6, comprising the steps of:
s1, installing an electric energy meter on the secondary side of the user data collector;
s2, uploading the acquired sudden change power electricity consumption data to a load monitoring master station system;
s3 the load monitoring system main station collects the user electricity load change data as the comparison library;
s4, comparing the power sudden change load data uploaded by the collector in real time to obtain a corresponding load coincidence rate, and drawing a power superposition coincidence rate curve graph;
s5 shows the events and phenomena in the form of curves and reports, screens electricity stealing events and phenomena in time, and sends out alarms.
8. The power superposition comparison method for line loss monitoring according to claim 7, wherein the method utilizes the electric energy metering data collected by the power superposition comparison system for line loss monitoring to perform unified analysis on electric quantity, power and current data, and perform comprehensive analysis on different operation modes and user power failure events.
9. The power superposition comparison method for line loss monitoring according to claim 8, wherein the method combines historical data and load curve change state to eliminate false data hidden in line loss calculation, and uniformly judges to find electricity stealing phenomenon.
CN202011422547.2A 2020-12-08 2020-12-08 Power superposition comparison system and method for line loss monitoring Pending CN112557745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011422547.2A CN112557745A (en) 2020-12-08 2020-12-08 Power superposition comparison system and method for line loss monitoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011422547.2A CN112557745A (en) 2020-12-08 2020-12-08 Power superposition comparison system and method for line loss monitoring

Publications (1)

Publication Number Publication Date
CN112557745A true CN112557745A (en) 2021-03-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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Effective date of registration: 20210415

Address after: 041000 north side of Xiangyang West Road, Linfen City, Shanxi Province

Applicant after: LINFEN POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER Co.

Address before: 041000 north side of Xiangyang West Road, Linfen City, Shanxi Province

Applicant before: LINFEN POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER Co.

Applicant before: SHENZHEN TCHUIN TECHNOLOGY DEVELOPMENT Co.,Ltd.

TA01 Transfer of patent application right