CN109061395A - A kind of quick positioning failure instrument of power distribution network - Google Patents
A kind of quick positioning failure instrument of power distribution network Download PDFInfo
- Publication number
- CN109061395A CN109061395A CN201811081129.4A CN201811081129A CN109061395A CN 109061395 A CN109061395 A CN 109061395A CN 201811081129 A CN201811081129 A CN 201811081129A CN 109061395 A CN109061395 A CN 109061395A
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- module
- signal
- input terminal
- distribution network
- power distribution
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- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Locating Faults (AREA)
Abstract
The invention discloses a kind of quick positioning failure instrument of power distribution network, including control module and power module, the output end of power module and the input terminal of control module connect, and control module has been bi-directionally connected monitoring modular and signal generating module by signal wire, monitoring modular respectively with power distribution network branch line L1、L2、LNConnection, signal generating module respectively with power distribution network branch line L1、L2、LN, ground wire PE connection, the output end of control module and the input terminal of communication module connect, the input terminal of communication module is connected with time synchronization module by signal wire, the output end of communication module is connected by the input terminal of wireless signal and information receiving module, the output end of information receiving module and the input terminal of data memory module connect, and the output end of data memory module is connect with the input terminal of master station module.The present invention solves the disadvantages that power distribution network branched line exists in the prior art more, searches failure and is inconvenient.
Description
Technical field
The present invention relates to technical field of electric power more particularly to a kind of quick positioning failure instrument of power distribution network.
Background technique
The fault detector of electromechanical integration is widely used in China's power department on 10kV power distribution network at present, when generation event
After barrier, the fault detector that send line attendant to act along route lookup determines abort situation.Due to power distribution network branch line
Lu Duo searches failure and is inconvenient, often expends a large amount of human and material resources and time.
Summary of the invention
The purpose of the present invention is to solve existing in the prior art, power distribution network branched line is more, searches failure and is inconvenient
The shortcomings that, and the quick positioning failure instrument of a kind of power distribution network proposed.
To achieve the goals above, present invention employs following technical solutions:
A kind of quick positioning failure instrument of power distribution network, including control module and power module, the output end of the power module and control
The input terminal of molding block connects, and the control module has been bi-directionally connected monitoring modular and signal generating module by signal wire, institute
State monitoring modular respectively with power distribution network branch line L1、L2、LNConnection, the signal generating module respectively with power distribution network branch line L1、L2、
LN, ground wire PE connection, the input terminal of the output end of the control module and communication module connects, the input terminal of the communication module
Time synchronization module is connected with by signal wire, and the output end of the communication module passes through wireless signal and information receiving module
Input terminal connection, the output end of the information receiving module and the input terminal of data memory module connect, and the data store mould
The output end of block is connect with the input terminal of master station module.
Further, the signal generating module includes signal source, power amplifier, step-up transformer and signal coupler；
The signal source resolves to continuous signal, the signal of signal source output by single-chip microcontroller output array original signal dot matrix, by DA circuit
It is coupled to power distribution network branch line L through power amplifier, step-up transformer and signal coupler1、L2、LNOn.
Further, the communication module includes satellite communication module and GPRS module, the satellite communication module and satellite
The input terminal of antenna connects, and the output end of the satellite antenna and the input terminal of information receiving module connect, the GPRS module
Output end connect with the input terminal of 3G antenna, the input terminal of the output end of the 3G antenna and information receiving module connects.
Further, the input terminal connection of the output end and indicating lamp module of the control module.
The beneficial effect comprise that: by setting monitoring modular, signal generating module and control module, work as distribution
When net breaks down, signal generating module starts and generates positioning signal, is injected into power distribution network, since power grid breaks down,
Monitoring modular can monitor the test electric current that certain branch road generates, that is, can determine whether that this branch breaks down, it is not necessary to one by one
Branch power-off is checked, and trouble shoot efficiency is improved, and ensure that the continuity of power distribution network power supply.
Detailed description of the invention
Fig. 1 is structure principle chart of the invention；
Fig. 2 is the structure principle chart of signal generating module；
Fig. 3 is the structure principle chart of control module.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1, the quick positioning failure instrument of a kind of power distribution network, including control module and power module, power module it is defeated
The input terminal of outlet and control module connects, and has been bi-directionally connected monitoring modular by signal wire in control module and mould occurs for signal
Block, monitoring modular respectively with power distribution network branch line L1、L2、LNConnection, signal generating module respectively with power distribution network branch line L1、L2、LN,
Line PE connection, the output end of control module and the input terminal of communication module connect, and the input terminal of communication module is connected by signal wire
It is connected to time synchronization module, the output end of communication module is connected by the input terminal of wireless signal and information receiving module, information
The output end of receiving module and the input terminal of data memory module connect, the output end and master station module of data memory module
Input terminal connection.
Master station module is PC machine.Communication module includes satellite communication module and GPRS module, satellite communication module with
The input terminal of satellite antenna connects, and the output end of satellite antenna and the input terminal of information receiving module connect, GPRS module it is defeated
Outlet is connect with the input terminal of 3G antenna, and the output end of 3G antenna and the input terminal of information receiving module connect.Control module
The connection of the input terminal of output end and indicating lamp module, the quick positioning failure instrument of the power distribution network in actual use, send out first by signal
Raw module, which is powered, starts to work, and control module carries out real-time monitoring to power distribution network by monitoring modular, and signal generating module generates
Test signal loading to L1-PE、L2-PE、LNBetween-PE, when power distribution network breaks down, it is smaller that fault branch can be used as one
Resistance, the route and the earth that connection power distribution network breaks down, forms current loop, so that test signal produces on fault branch
Raw test electric current, monitoring module monitors can judge fault branch to test electric current at this time, realize fast failure positioning
Function, it is not necessary to which branch power-off one by one is checked, and trouble shoot efficiency is improved, and ensure that the continuity of power distribution network power supply.
Signal generating module includes signal source, power amplifier, step-up transformer and signal coupler.As shown in Fig. 2, letter
Number source generates the low frequency signal of a 0.1Hz after power amplifier amplified signal, is boosted by step-up transformer, using
Coupler coupling is sent to L1、L2、LNOn route, signal source exports a 0.1Hz array source signal dot matrix using single-chip microcontroller, passes through DA
Circuit parsing generates the continuous signal of 0.1Hz frequency, and signal source is made of single-chip microcontroller and DA circuit, and single-chip microcontroller uses M430HT,
American TI Company provides；The 0.1Hz low frequency signal that function audio amplifier generates signal source carries out power amplification, power amplification
Low frequency signal of the device by generation voltage 100V, electric current 5A after amplification, apparent energy 500W, the power amplifier and audio
Signal amplifier is identical, and exactly the signal amplifying power by single-chip microcontroller after DA gives step-up transformer, and step-up transformer will
The 0.1HZ low frequency signal boosting of 100V, 5A are 10KV, are coupled to faulty line L by coupler1、L2、LNOn.
The signal for the low frequency 0.1Hz that control module issues signal generating module, receives fault-signal with monitoring modular,
It is removed by the signal of 0.1Hz, control module includes Main Processor Unit, monitoring signals receiving unit, signal generator reception
Unit, fault message discharge unit, as shown in Figure 3.The live signal that monitoring signals receiving unit arrives monitoring module monitors, send
The signal of the 0.1Hz received to Main Processor Unit, signal generator receiving unit is sent to Main Processor Unit, and Main Processor Unit will
The signal of synchronous 0.1Hz is judgment basis, and the signal of non-zero .1Hz is handled, filters, no longer calculated, greatly improved
Its accuracy, also not by the interference of other interference signals, the signal that Main Processor Unit determines passes through fault message and sends out
Unit is sent to communication module.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of quick positioning failure instrument of power distribution network, it is characterised in that: including control module and power module, the power module
Output end and the input terminal of control module connect, the control module has been bi-directionally connected monitoring modular and signal by signal wire
Occur module, the monitoring modular respectively with power distribution network branch line L1、L2、LNConnection, the signal generating module respectively with power distribution network
Branch line L1、L2、LN, ground wire PE connection, the input terminal of the output end of the control module and communication module connects, the communication mould
The input terminal of block is connected with time synchronization module by signal wire, and the output end of the communication module passes through wireless signal and information
The input terminal of receiving module connects, and the output end of the information receiving module and the input terminal of data memory module connect, described
The output end of data memory module is connect with the input terminal of master station module.
2. the quick positioning failure instrument of a kind of power distribution network according to claim 1, it is characterised in that: the signal generating module
Including signal source, power amplifier, step-up transformer and signal coupler；The signal source is by single-chip microcontroller output array original signal
Dot matrix resolves to continuous signal by DA circuit, and the signal of signal source output is coupled through power amplifier, step-up transformer and signal
Device is coupled to power distribution network branch line L1、L2、LNOn.
3. the quick positioning failure instrument of a kind of power distribution network according to claim 1, it is characterised in that: the communication module includes
The input terminal of satellite communication module and GPRS module, the satellite communication module and satellite antenna connects, the satellite antenna
The connection of the input terminal of output end and information receiving module, the output end of the GPRS module are connect with the input terminal of 3G antenna, institute
The input terminal of the output end and information receiving module of stating 3G antenna connects.
4. the quick positioning failure instrument of a kind of power distribution network according to claim 1, it is characterised in that: the control module includes
Main Processor Unit, monitoring signals receiving unit, signal generator receiving unit and fault message discharge unit；The monitoring signals
The live signal that receiving unit arrives monitoring module monitors, is sent to Main Processor Unit, and signal generator receives receiving unit
Signal be sent to Main Processor Unit, synchronous signal is judgment basis by Main Processor Unit.
5. the quick positioning failure instrument of a kind of power distribution network according to claim 1, it is characterised in that: the control module it is defeated
The connection of the input terminal of outlet and indicating lamp module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081129.4A CN109061395B (en) | 2018-09-17 | 2018-09-17 | Quick fault location appearance of distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081129.4A CN109061395B (en) | 2018-09-17 | 2018-09-17 | Quick fault location appearance of distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109061395A true CN109061395A (en) | 2018-12-21 |
| CN109061395B CN109061395B (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811081129.4A Active CN109061395B (en) | 2018-09-17 | 2018-09-17 | Quick fault location appearance of distribution network |
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| Country | Link |
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| CN (1) | CN109061395B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297201A (en) * | 2019-07-02 | 2019-10-01 | 国网四川省电力公司电力科学研究院 | A kind of the transmission characteristic calibration system and method for wideband transient voltage measuring device |
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| US20120327989A1 (en) * | 2011-06-27 | 2012-12-27 | Shanxilinfen Power Supply Company | Smart feed line automation system based on 10kv carrier communication |
| CN203012073U (en) * | 2012-12-31 | 2013-06-19 | 广东电网公司电力科学研究院 | Power distribution network line fault positioning system |
| EP2741390A1 (en) * | 2012-12-06 | 2014-06-11 | Schneider Electric Industries SAS | Directional detection of a fault, in particular in a network with compensated or insulated neutral |
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2018
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| US20110242989A1 (en) * | 2008-10-31 | 2011-10-06 | Kim Charles J | System And Method Of Detecting And Locating Intermittent And Other Faults |
| WO2011124116A1 (en) * | 2010-04-09 | 2011-10-13 | 华为终端有限公司 | Voltage driving apparatus for power amplifier, power amplifying system, power supply device for radio frequency power amplifier and communication device |
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| Publication number | Publication date |
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| CN109061395B (en) | 2024-02-27 |
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