CN109239498A - A kind of power supply line's line loss detection method - Google Patents

A kind of power supply line's line loss detection method Download PDF

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Publication number
CN109239498A
CN109239498A CN201811270566.0A CN201811270566A CN109239498A CN 109239498 A CN109239498 A CN 109239498A CN 201811270566 A CN201811270566 A CN 201811270566A CN 109239498 A CN109239498 A CN 109239498A
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CN
China
Prior art keywords
metering units
route
power
load
line
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
CN201811270566.0A
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Chinese (zh)
Inventor
侯海雄
李海滨
虞科伟
周通
李嘉
吴泽
张高阳
朱陶君
周林凯
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.)
Jiangyin Power Supply Branch Of Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
Original Assignee
Jiangyin Power Supply Branch Of Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
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 Jiangyin Power Supply Branch Of Jiangsu Electric Power Co Ltd, State Grid Corp of China SGCC filed Critical Jiangyin Power Supply Branch Of Jiangsu Electric Power Co Ltd
Priority to CN201811270566.0A priority Critical patent/CN109239498A/en
Publication of CN109239498A publication Critical patent/CN109239498A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead

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

Abstract

A kind of power supply line's line loss detection method of the present invention, the method is based on a kind of power supply line's line loss detection circuit, the circuit includes metering units, the metering units are divided into route metering units according to installation site difference, power transformation metering units and load metering units, the route metering units are provided with one group, the route metering units are installed on the input terminal of high voltage supply route, multiple output ends of the high voltage supply route are input to the input terminal of the transformer in electric substation after power transformation metering units respectively, the output end of the transformer is respectively connected to load through a plurality of route of registering one's residence, and load metering units are serially connected with before route access load of registering one's residence.A kind of power supply line's line loss detection method of the present invention can be realized rapid line loss detection and positioning.

Description

A kind of power supply line's line loss detection method
Technical field
The present invention relates to a kind of detection method, more particularly, to one kind for power supply circuit line loss is carried out extremely detection and The method of positioning, belongs to technical field of electric power.
Background technique
Currently, needing to carry out line loss monitoring to electric power cable during power Transmission, to quickly and easily understand line Road situation;But conventional line loss detection carries out data communication using power communication mode, when line loss exception, often leads to lead to News obstruction;And structure is complicated for conventional measurement circuit design, and it is inconvenient for use, and need outer with all kinds of detections of battery maintenance The work of component increases maintenance cost for this reason, it may be necessary to which patrol officer's periodic replacement battery maintains.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of easy to detect, efficient, quick and maintenance cost is cheap Power supply line's line loss detection method.
The object of the present invention is achieved like this:
A kind of power supply line's line loss detection method, the method are based on a kind of power supply line's line loss detection circuit, the circuit packet Containing metering units, the metering units are divided into route metering units, power transformation metering units and load according to installation site difference Metering units, the route metering units are provided with one group, which is installed on the input terminal of high voltage supply route, Multiple output ends of the high voltage supply route are input to the defeated of the transformer in electric substation after power transformation metering units respectively Enter end, the output end of the transformer is respectively connected to load through a plurality of route of registering one's residence, and concatenation before route access load of registering one's residence There are load metering units;
The metering units include microprocessor, electric energy meter, wireless module, regulator rectifier circuit and mutual inductor, described Electric energy meter concatenates on the line, and the data output end of the electric energy meter is connected to microprocessor, the microprocessor I/O port and control port be connected to wireless module;The wireless module sends data to background service by wireless network Device;
Power supply line's line loss detection method are as follows:
Initialization: microprocessor is built-in with unique ID identifier, presets line loss normal interval range (such as 1 ‰ ~ 1%);
The general power P0 of input end is transmitted to background server on the high voltage supply route that route metering units will acquire;
The output power P into high voltage supply line output before electric substation that power transformation metering units will acquire is transmitted to backstage and takes Business device, Pi are the general power of the input terminal of a certain electric substation;Background server be calculated gross output P=P1+P2+ ...+ Pi, wherein i=1,2 ... n, n are the quantity of electric substation;
The input power Q for the service wire road entered before load that load metering units will acquire is transmitted to background server, Qi For the loaded power summation connected in a certain electric substation, Qj is the input power in a certain load, background server meter Calculation obtains the corresponding total power input Qi=Q1+Q2+ ...+Qj of each electric substation;Wherein j=1,2 ... m, m are for electric substation The quantity of the load of connection;
Wherein: the numerical value of i, j are corresponded with ID identifier;
Background server calculates line loss S=(P0-P)/P on high voltage supply route;
Line loss Si=(Pi-Qi)/Pi of background server calculating service wire road;
When S exceeds default line loss normal interval range, background server alarm indication high voltage supply line anomalies;When Si exceeds When default line loss normal interval range, background server alarm indication is registered one's residence line anomalies, and shows the numerical value of i, to mention Show which item is registered one's residence line anomalies;It is quickly searched to realize.
The metering units also include the mutual inductor being set on route, and the mutual inductor is set on route, described The output end of mutual inductor is connected to regulator rectifier circuit, and the output single connection of the regulator rectifier circuit is to microprocessor and wirelessly Module.
Electric energy meter in the route metering units is serially connected on the input terminal of high voltage supply route, the power transformation meter Electric energy meter in amount unit is serially connected on the output end of high voltage supply route, the electrical energy measurement in the load metering units Table is serially connected on the output end for route of registering one's residence;
Mutual inductor in the route metering units is set on high voltage supply route, the mutual inductor in the power transformation metering units It is set on high voltage supply route, the mutual inductor in the load metering units is set in service wire road.
Compared with prior art, the beneficial effects of the present invention are:
Circuit structure of the present invention is simple, convenient to use, so as to fast and accurately be alarmed failure and positioned;Together When, the present invention uses wireless communication mode, reliable and stable;Circuit is powered in addition, obtaining induced current using mutual inductor, Without optional equipment battery, so that maintenance cost and human cost expenditure are reduced, convenient for its popularization and application.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of power supply line's line loss detection circuit of the present invention.
Fig. 2 is a kind of structural schematic diagram of the metering units of power supply line's line loss detection circuit of the present invention.
Specific embodiment
Referring to Fig. 1 and Fig. 2, a kind of power supply line's line loss detection method of the present invention, the method are based on a kind of confession Electric wire damage detection circuit, the circuit include metering units, and the metering units are divided into line according to installation site difference Road metering units, power transformation metering units and load metering units, the route metering units are provided with one group, and route metering is single Member is installed on the input terminal of high voltage supply route, and multiple output ends of the high voltage supply route are respectively through power transformation metering units It is input to the input terminal of the transformer in electric substation afterwards, the output end of the transformer is respectively connected to bear through a plurality of route of registering one's residence It carries, and is serially connected with load metering units before route access load of registering one's residence;
The metering units include microprocessor, electric energy meter, wireless module, regulator rectifier circuit and mutual inductor, described Electric energy meter concatenates on the line, and the data output end of the electric energy meter is connected to microprocessor, the microprocessor I/O port and control port be connected to wireless module;The wireless module sends data to background service by wireless network Device;
Further, the metering units also include the mutual inductor being set on route, and the mutual inductor is set on route, The output end of the mutual inductor is connected to regulator rectifier circuit, the output single connection of the regulator rectifier circuit to microprocessor and Wireless module, so that power supply in real time is realized, without included battery;
Concretely, the electric energy meter in the route metering units is serially connected on the input terminal of high voltage supply route, described Electric energy meter in power transformation metering units is serially connected on the output end of high voltage supply route, the electricity in the load metering units Energy gauge table is serially connected on the output end for route of registering one's residence (front end that route of registering one's residence enters load);
Mutual inductor in the route metering units is set on high voltage supply route, the mutual inductor in the power transformation metering units It is set on high voltage supply route, the mutual inductor in the load metering units is set in service wire road;
A kind of power supply line's line loss detection method, the method are as follows:
Initialization: microprocessor is built-in with unique ID identifier, presets line loss normal interval range (such as 1 ‰ ~ 1%);
The general power P0 of input end is transmitted to background server on the high voltage supply route that route metering units will acquire;
The output power P into high voltage supply line output before electric substation that power transformation metering units will acquire is transmitted to backstage and takes Business device, Pi are the general power of the input terminal of a certain electric substation;Background server be calculated gross output P=P1+P2+ ...+ Pi(is i.e.: P=Σ pi), wherein i=1,2 ... n, n are the quantity of electric substation;
The input power Q for the service wire road entered before load that load metering units will acquire is transmitted to background server, Qi For the loaded power summation connected in a certain electric substation, Qj is the input power in a certain load, background server meter Calculation obtains the corresponding total power input Qi=Q1+Q2+ ...+Qj of each electric substation;Wherein j=1,2 ... m, m are for electric substation The quantity of the load of connection;
Wherein: the numerical value of i, j are corresponded with ID identifier;
Background server calculates line loss S=(P0-P)/P on high voltage supply route;
Line loss Si=(Pi-Qi)/Pi of background server calculating service wire road;
When S exceeds default line loss normal interval range, background server alarm indication high voltage supply line anomalies;When Si exceeds When default line loss normal interval range, background server alarm indication is registered one's residence line anomalies, and shows the numerical value of i, to mention Show which item is registered one's residence line anomalies;It is quickly searched to realize;
In addition: it should be noted that above-mentioned specific embodiment is only a prioritization scheme of this patent, those skilled in the art Any change or improvement that member is done according to above-mentioned design, within the protection domain of this patent..

Claims (3)

1. a kind of power supply line's line loss detection method, it is characterised in that: the method is based on a kind of power supply line's line loss detection electricity Road, the circuit include metering units, and the metering units are divided into route metering units, power transformation meter according to installation site difference Unit and load metering units are measured, the route metering units are provided with one group, which is installed on high voltage supply Multiple output ends of the input terminal of route, the high voltage supply route are input in electric substation after power transformation metering units respectively Transformer input terminal, the output end of the transformer is respectively connected to load through a plurality of route of registering one's residence, and route of registering one's residence connects Load metering units are serially connected with before entering load;
The metering units include microprocessor, electric energy meter, wireless module, regulator rectifier circuit and mutual inductor, described Electric energy meter concatenates on the line, and the data output end of the electric energy meter is connected to microprocessor, the microprocessor I/O port and control port be connected to wireless module;The wireless module sends data to background service by wireless network Device;
Power supply line's line loss detection method are as follows:
Initialization: microprocessor is built-in with unique ID identifier, presets line loss normal interval range (such as 1 ‰ ~ 1%);
The general power P0 of input end is transmitted to background server on the high voltage supply route that route metering units will acquire;
The output power P into high voltage supply line output before electric substation that power transformation metering units will acquire is transmitted to backstage and takes Business device, Pi are the general power of the input terminal of a certain electric substation;Background server be calculated gross output P=P1+P2+ ...+ Pi, wherein i=1,2 ... n, n are the quantity of electric substation;
The input power Q for the service wire road entered before load that load metering units will acquire is transmitted to background server, Qi For the loaded power summation connected in a certain electric substation, Qj is the input power in a certain load, background server meter Calculation obtains the corresponding total power input Qi=Q1+Q2+ ...+Qj of each electric substation;Wherein j=1,2 ... m, m are for electric substation The quantity of the load of connection;
Wherein: the numerical value of i, j are corresponded with ID identifier;
Background server calculates line loss S=(P0-P)/P on high voltage supply route;
Line loss Si=(Pi-Qi)/Pi of background server calculating service wire road;
When S exceeds default line loss normal interval range, background server alarm indication high voltage supply line anomalies;When Si exceeds When default line loss normal interval range, background server alarm indication is registered one's residence line anomalies, and shows the numerical value of i, to mention Show which item is registered one's residence line anomalies, realizes and quickly search.
2. a kind of power supply line's line loss detection method as described in claim 1, it is characterised in that: the metering units also include The mutual inductor being set on route, the mutual inductor are set on route, and the output end of the mutual inductor is connected to rectifying and voltage-stabilizing Circuit, the output single connection of the regulator rectifier circuit to microprocessor and wireless module.
3. a kind of power supply line's line loss detection method as described in claim 1, it is characterised in that: in the route metering units Electric energy meter is serially connected on the input terminal of high voltage supply route, and the electric energy meter in the power transformation metering units is serially connected in height On the output end for pressing power supply line, the electric energy meter in the load metering units is serially connected on the output end for route of registering one's residence;
Mutual inductor in the route metering units is set on high voltage supply route, the mutual inductor in the power transformation metering units It is set on high voltage supply route, the mutual inductor in the load metering units is set in service wire road.
CN201811270566.0A 2018-10-29 2018-10-29 A kind of power supply line's line loss detection method Pending CN109239498A (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110940892A (en) * 2019-12-13 2020-03-31 西安锐驰电器有限公司 Equipment line fault detection system and method
CN113267693A (en) * 2021-05-17 2021-08-17 国网河北省电力有限公司沧州供电分公司 Distributed transformer area line loss detection and positioning system
CN113447749A (en) * 2021-08-31 2021-09-28 江苏数能电力技术有限公司 Method for judging abnormal line loss of transformer area
WO2023164895A1 (en) * 2022-03-03 2023-09-07 广东电网有限责任公司广州供电局 Line loss detection load balancing method and apparatus used for gateway and gateway device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1392518A (en) * 2002-04-13 2003-01-22 李福禄 Real time monitoring and analyzing technology for power line damage
CN101216503A (en) * 2008-01-02 2008-07-09 武汉国测科技股份有限公司 Hierarchical type electricity anti-theft system and method
CN201263094Y (en) * 2008-08-14 2009-06-24 淄博计保互感器研究所 Source-fetching device for I/P current
CN102497030A (en) * 2011-12-28 2012-06-13 山东电力研究院 Line-loss actual-measurement and positioning method based on high-voltage electric energy meter and system thereof
KR101905660B1 (en) * 2018-01-03 2018-10-08 주식회사 레티그리드 Power loss measurement system of live circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1392518A (en) * 2002-04-13 2003-01-22 李福禄 Real time monitoring and analyzing technology for power line damage
CN101216503A (en) * 2008-01-02 2008-07-09 武汉国测科技股份有限公司 Hierarchical type electricity anti-theft system and method
CN201263094Y (en) * 2008-08-14 2009-06-24 淄博计保互感器研究所 Source-fetching device for I/P current
CN102497030A (en) * 2011-12-28 2012-06-13 山东电力研究院 Line-loss actual-measurement and positioning method based on high-voltage electric energy meter and system thereof
KR101905660B1 (en) * 2018-01-03 2018-10-08 주식회사 레티그리드 Power loss measurement system of live circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110940892A (en) * 2019-12-13 2020-03-31 西安锐驰电器有限公司 Equipment line fault detection system and method
CN113267693A (en) * 2021-05-17 2021-08-17 国网河北省电力有限公司沧州供电分公司 Distributed transformer area line loss detection and positioning system
CN113447749A (en) * 2021-08-31 2021-09-28 江苏数能电力技术有限公司 Method for judging abnormal line loss of transformer area
CN113447749B (en) * 2021-08-31 2021-11-23 江苏数能电力技术有限公司 Method for judging abnormal line loss of transformer area
WO2023164895A1 (en) * 2022-03-03 2023-09-07 广东电网有限责任公司广州供电局 Line loss detection load balancing method and apparatus used for gateway and gateway device

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