CN105676074A - Power transmission line fault positioning device based on non-contact type sensor - Google Patents
Power transmission line fault positioning device based on non-contact type sensor Download PDFInfo
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- CN105676074A CN105676074A CN201610138573.XA CN201610138573A CN105676074A CN 105676074 A CN105676074 A CN 105676074A CN 201610138573 A CN201610138573 A CN 201610138573A CN 105676074 A CN105676074 A CN 105676074A
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- detecting device
- noncontacting proximity
- proximity sensor
- signal
- device based
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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
- G01R31/085—Locating 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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- 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
Abstract
The invention discloses a power transmission line fault positioning device based on non-contact type sensors. The power transmission line fault positioning device comprises a power supply device, a detection device, a communication device and a GPS positioning device, wherein the power supply device is connected with the detection device and is used for supplying power to the detection device; the communication device and the GPS positioning device are each connected with the detection device; the detection device comprises three non-contact type sensors; the GPS positioning device is used for positioning the fault positioning device; and the communication device is used for sending a signal detected by the detection device to a monitoring center. The fault positioning device disclosed by the invention is high in sampling rate and positioning precision, reduces cost, and can be widely used in the power transmission field.
Description
Technical field
The present invention relates to the transmission open acess device based on noncontacting proximity sensor, belong to power failure field of locating technology.
Background technology
Along with developing rapidly of intelligent grid, ultra-high-tension power transmission line status shared by electrical network is more and more important, its reliability of operation affects the power supply reliability of whole power system, and Research Work of Power Transmission Line environment is extremely severe, it is not only exposed in wind and rain, and navigate within hill, it it is maximum place of breaking down in power system, the extremely difficult lookup in trouble point, therefore, trouble point is quickly and accurately found after line failure, not only to repairing circuit and fast recovery of power supply in time, and the safety and stability and economical operation to whole power system has highly important effect.
In recent years, fault traveling wave location technology obtains and develops faster, has emerged in large numbers many both-ends, single-ended traveling wave fault location algorithm and principle, at present, current traveling wave signal, mainly by transformer station's internal fault oscillograph device, is carried out fault location calculating by practical traveling wave positioner. it is applied to the range unit of the comparative maturity of power system at present, WFL2010 such as China Electric Power Research Institute's research and development, the XC-11 etc. of Xi'an Communications University and Shandong Kehui Electric Co., Ltd.'s research and development, the ability of the good change of disease high-frequency signal that these traveling wave positioners have mainly by current transformer, but, when adopting current traveling wave signal to carry out fault location, the collection signal of current traveling wave is bigger by corona interference, when data are carried out wavelet analysis, it sometimes appear that wave head bad timing, cause position stability, reliability and accuracy are not high, engineering adaptability is relatively poor, and when non-thunderbolt insulation corollary failure, generally easily occur at voltage peaks, voltage traveling wave is highly sensitive compared with current traveling wave, additionally, existing range unit is relatively low due to sample rate, positioning precision is relatively low, theory and practical range error are often beyond 1kM.
Summary of the invention
Instant invention overcomes the deficiency that prior art exists, it is provided that the transmission open acess device based on noncontacting proximity sensor that a kind of sample rate is high, positioning precision is high.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: based on the transmission open acess device of noncontacting proximity sensor, including electric supply installation, detecting device, communicator and GPS positioner, described electric supply installation is connected with described detecting device, for powering to described detecting device, described communicator is connected with detecting device respectively with described GPS positioner, described detecting device includes 3 noncontacting proximity sensors and the sampling apparatus being connected with described 3 noncontacting proximity sensors, described detecting device is for gathering the fault traveling wave signal in transmission line of electricity, described GPS positioner is for positioning and clock alignment described fault locator, described communicator is for being sent to Surveillance center by the fault traveling wave signal that the detection of described detecting device obtains.
The described transmission open acess device based on noncontacting proximity sensor, also include main reception point, the described main point that receives includes Receiver Module and GPRS module, described communicator includes radio frequency sending module, described radio frequency sending module is sent to described main reception point for the signal described detecting device measurement obtained in radiofrequency signal mode, and the described main point that receives receives described signal by Receiver Module and is sent to Surveillance center by described GPRS module.
Described electric supply installation includes solaode and accumulator.
Described 3 noncontacting proximity sensors are separately mounted to each of three phase transmission line and go up mutually, for measuring the voltage and current signal of each phase.
The mounting distance of described fault locator is 10km ~ 15km.
The described main point that receives is arranged on the ground, and mounting distance is 50 ~ 100km.
The present invention compared with prior art has the advantages that
1, the transmission open acess device of the present invention, by GPS positioner, can control the time error between each collection point 10-7Within, greatly reduce the error that result of calculation is produced by hardware;
2, in the present invention transmission open acess device have employed the noncontacting proximity sensor of the frequency response ability with more than 10MHz, voltage and the current signal of circuit is detected by electromagnetic induction, for transient signal and to disturbing signal to have higher position reason ability, and adopt more than 10MHz high-speed sampling technology, the intact record trouble waveform truly of energy, position of failure point can be demarcated and Trouble cause analysis provides foundation accurately and reliably, realize high accuracy fault localization, it is possible to make actual error basic controlling within 200M comprehensively;
3, noncontacting proximity sensor is independent of transformer station, any position of circuit can be arranged on, solve the problem of installation difficulty in complicated circuit and transformer station very well, there is the advantage that strong adaptability is prone to engineer applied, and, noncontacting proximity sensor can also play the advantage of its safety, such as sensing record trouble waveform, causes etc. all kinds of accidents such as the phase fault, the single-line to ground fault that cause all effective for foreign body, thunderbolt;
4, passing through, the main point that receives is set and carries out signal transfer, it is possible to reduce communications cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the transmission open acess device based on noncontacting proximity sensor of the present invention.
Fig. 2 is the structural representation of the second embodiment of the present invention.
Detailed description of the invention
In order to further appreciate that the substantive distinguishing features of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described further.
As shown in Figure 1, for the present invention transmission open acess device based on noncontacting proximity sensor, including electric supply installation 1, detecting device 2, communicator 3, GPS positioner 4, electric supply installation 1 is connected with detecting device 2, for powering to detecting device 3, communicator 3 is all connected with detecting device 2 with GPS positioner 4, the signal that detecting device detection obtains is sent to Surveillance center, fault message is analyzed collecting by Surveillance center, and after abort situation is calculated location, it is uploaded to human-computer interaction interface, so that staff carries out Data Summary, and location maintenance.
Specifically, electric supply installation 1 includes solaode 11 and the accumulator 12 electrically connected with solaode, solaode 11 absorbs sunlight and is converted to electric energy, and charge to accumulator 12, accumulator 12 powers to detecting device 2, detecting device 2 is made continuous to obtain electric, even sleet or cloudy day also can continuous operations. Detecting device 2 is arranged on shaft tower, and detecting device 2 includes sensor 21, sensor 22 and sensor 23 and the sampling apparatus being connected with these three sensor, sensor 21, sensor 22 and sensor 23 are separately mounted in each phase of three phase line. Communicator 3 for by sampling apparatus from sensor 21, sensor 22 and detect the signal obtained on sensor 23 and be sent to Surveillance center. GPS positioner 4 is connected with detecting device 2, it is possible to the detecting device 2 of each collection point is positioned, and can control the time error between each collection point 10-7Within, greatly reduce the error that result of calculation is produced by hardware.
The transmission open acess device of the present invention, mounting distance can for 5km to 50km, wherein, it is advantageous to mounting distance be 10km to 15km.
Wherein, different steel tower places communicator 3 can pass through mobile telephone network or satellite phone, the signal that such as sensor is detected by the mode of GPRS communication is sent to Surveillance center, in addition, can also be the main reception point that in regional, the communicator 3 at different steel tower places is sent in this region by the signal that sensor is detected by the mode that radio frequency sends, the main point that receives send a signal to Surveillance center by GPRS communication mode. It is the second embodiment of the transmission open acess device of the present invention as described in Figure 2, also include main reception point 5, the main point 5 that receives includes Receiver Module 51 and GPRS module 52, described communicator 3 includes radio frequency sending module 31, radio frequency sending module 31 is sent to the main point 5 that receives for detecting device 2 is measured the signal obtained in radiofrequency signal mode, and the main point 5 that receives receives this signal by Receiver Module 31 and is sent to Surveillance center by GPRS module 52. The main point that receives is installed on the ground, and its mounting distance is 50km-100km, then can reduce the cost of communicator 3 by arranging main reception point.
In the present invention, sensor 21, sensor 22 and sensor 23 can be noncontacting proximity sensor, are made up of electric-field sensor and magnetic field sensor two parts inside noncontacting proximity sensor, can kept at a certain distance away by this two sensors, the voltage and current signal of detection electrical body. Cleaning Principle is: magnetic field sensor is in coil shape, it is possible to detects and flows through magnetic field produced by electric current in electrical body. electric-field sensor can detect the electric field that on electricity body, voltage produces. when electrical body is arranged by sensor cover, it is possible to keep at a certain distance away and the voltage and current signal produced in electrical body is detected. non-contact sensor has the slab construction of uniqueness, voltage and the current signal of circuit is detected by electromagnetic induction, there is the frequency response ability of more than 10MHz, for transient signal and to disturbing signal to have higher position reason ability, substantially increase line security, and non-contact sensor is independent of transformer station, any position of circuit can be arranged on, solve the problem of installation difficulty in complicated circuit and transformer station very well, there is the advantage that strong adaptability is prone to engineer applied, noncontacting proximity sensor can also play the advantage of its safety, as sensed record trouble waveform, for foreign body, thunderbolt such as causes at the phase fault caused, all kinds of accident such as single-line to ground fault is all effective.Detecting device 2 adopts the high-speed sampling technology of more than 10MHz, the intact record trouble waveform truly of energy, position of failure point is demarcated and all will provide for foundation accurately and reliably with Trouble cause analysis from now on, voltage x current travelling wave signal after collection, transmitted to Surveillance center by communication module 3, realize high accuracy fault localization comprehensively, make actual error basic controlling within 200M.
The present invention proposes the transmission open acess device based on noncontacting proximity sensor, it is possible to fault is monitored in real time, and sample rate is high, and positioning precision is high, has prominent substantive distinguishing features and progress. Above in conjunction with accompanying drawing, embodiments of the invention are explained in detail, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, it is also possible under the premise without departing from present inventive concept, make various change.
Claims (6)
1. based on the transmission open acess device of noncontacting proximity sensor, it is characterized in that, including electric supply installation, detecting device, communicator and GPS positioner, described electric supply installation is connected with described detecting device, for powering to described detecting device, described communicator is connected with detecting device respectively with described GPS positioner, described detecting device includes 3 noncontacting proximity sensors and the sampling apparatus being connected with described 3 noncontacting proximity sensors, described detecting device is for gathering the fault traveling wave signal in transmission line of electricity, described GPS positioner is for positioning and clock alignment described fault locator, described communicator is for being sent to Surveillance center by the fault traveling wave signal that the detection of described detecting device obtains.
2. the transmission open acess device based on noncontacting proximity sensor according to claim 1, it is characterized in that, also include main reception point, the described main point that receives includes Receiver Module and GPRS module, described communicator includes radio frequency sending module, described radio frequency sending module is sent to described main reception point for the signal described detecting device measurement obtained in radiofrequency signal mode, and the described main point that receives receives described signal by Receiver Module and is sent to Surveillance center by described GPRS module.
3. the transmission open acess device based on noncontacting proximity sensor according to claim 1, it is characterised in that described electric supply installation includes solaode and accumulator.
4. the transmission open acess device based on noncontacting proximity sensor according to claim 1, it is characterised in that described 3 noncontacting proximity sensors are separately mounted to each of three phase transmission line and go up mutually, for measuring the voltage and current signal of each phase.
5. the transmission open acess device based on noncontacting proximity sensor according to claim 1, it is characterised in that the mounting distance of described fault locator is 10km ~ 15km.
6. the transmission open acess device based on noncontacting proximity sensor according to claim 2, the described main point that receives is arranged on the ground, and mounting distance is 50 ~ 100km.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610138573.XA CN105676074A (en) | 2016-03-11 | 2016-03-11 | Power transmission line fault positioning device based on non-contact type sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610138573.XA CN105676074A (en) | 2016-03-11 | 2016-03-11 | Power transmission line fault positioning device based on non-contact type sensor |
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| CN105676074A true CN105676074A (en) | 2016-06-15 |
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| CN201610138573.XA Pending CN105676074A (en) | 2016-03-11 | 2016-03-11 | Power transmission line fault positioning device based on non-contact type sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385269A (en) * | 2016-09-19 | 2017-02-08 | 国网浙江省电力公司温州供电公司 | Terminal for line protection common person |
| CN106646133A (en) * | 2016-12-23 | 2017-05-10 | 国网山东省电力公司烟台供电公司 | Regional power grid T line fault range-finding system based on generalized measurement |
| CN111091479A (en) * | 2019-11-23 | 2020-05-01 | 国网山西省电力公司运城供电公司 | Power distribution network emergency repair system |
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Application publication date: 20160615 |