CN109557416A - A kind of external starting method suitable for transmission line of electricity diagnostic device - Google Patents
A kind of external starting method suitable for transmission line of electricity diagnostic device Download PDFInfo
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- CN109557416A CN109557416A CN201811485447.7A CN201811485447A CN109557416A CN 109557416 A CN109557416 A CN 109557416A CN 201811485447 A CN201811485447 A CN 201811485447A CN 109557416 A CN109557416 A CN 109557416A
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- phase
- message
- diagnostic device
- electricity
- starting
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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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of external starting methods suitable for transmission line of electricity diagnostic device, it can be realized the effective external starting of transmission line of electricity diagnostic device, communicate that the wireless protocols that are based on can fast and accurately transmission fault be separate, fault moment information between multiphase diagnostic device, simultaneously, accurate clock synchronization technology based on GPS/ Beidou ensure that external starter on the waveform that send and the fault waveform sent in active starter be in the same moment, with practice significance；Based on external starting method of the invention, have the advantages that communication is quick, reliable and stable.
Description
Technical field
The present invention relates to a kind of external starting methods suitable for transmission line of electricity diagnostic device.
Background technique
In the power system, transmission line of electricity bears the effect of electric energy transmission, and quality plays a crucial role.When
When transmission line of electricity breaks down, need system that can quickly and accurately find out fault point.
It is each mutually to there is complicated electromagnetic coupling phenomena for transmission line of electricity, if only carrying out small echo to single-phase fault data
Ranging is carried out after transformation, as a result has deviation, if decoupling to three-phase electrical quantity using phase-model transformation, phase space being changed into
Then modular space carries out wavelet transformation, distance measurement result can be more accurate, therefore the integrality in order to guarantee three-phase waveform, needs
The scheme mutually started can be used between three-phase diagnostic device.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, the present invention provides a kind of suitable for transmission line of electricity diagnosis dress
The external starting method set.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of external starting method suitable for transmission line of electricity diagnostic device, in each of Three-phase Power Systems transmission line of electricity
It is mutually disposed with a trouble-shooter, method includes:
The trouble-shooter of each phase acquires in real time and obtains the line waveform data of corresponding phase；And the line based on acquisition
Road Wave data carries out breakdown judge to the route of corresponding phase,
In response to judging that a phase line breaks down, will be sent in the line waveform data of the fault moment section of the failure phase,
And the message comprising current failure time information is sent to the trouble-shooter of other two-phase；
In addition the trouble-shooter of two-phase receives the message that failure is mutually sent；Received message is parsed, is obtained
Fault moment information；Based on fault moment information, search and by the corresponding moment section of this Xiang Yu failure phase fault moment section
Line waveform data carry out storage and on give.
Trouble-shooter is acquired to transmission line of electricity waveform, the phase monitored based on the collected present apparatus
Line current waveform data, by carrying out breakdown judge with the threshold value comparison of setting；After being judged as failure, enabling signal is issued,
Start recording, the Wave data of a period of time before and after fault moment is actively sent to the high speed numerical processor of this terminal, leads to
Cross high speed numerical processor stored waveform and on send afield backstage.
Fault waveform data are stored in a manner of recorded wave file, and the technology based on GPS/ Beidou high-precision clock synchronization ensure that dress
Setting the fault waveform document time sent on current is accurate fault moment, while but also between multiple distributed diagnostics devices
Be able to maintain accurately time synchronization, for the data based on more devices breakdown judge and waveform processing analysis carried out basis
It ensures.
Further, the message frame of the message meets following format:
| Heading | Purpose phase | Start phase | Send packet counting | Start the time | CRC check |
" purpose phase " is indicated to receive the separate of the message, be identified for receiving phase device；
" starting phase " indicates to send the separate of the message；
" sending packet counting ", i.e. serial number indicate that the message belongs to after message sends the same fault initiating of mutually ownership and send
Multipacket message in sequencing；
" starting time " indicates the time of this starting.
Further, the transmission for sending the message of phase continuously transmits the transmission mechanism of multipacket message using short interval, every
1ms sends 1 starting message, sends 3 times altogether.
Further, the reception mechanism of the message of phase is received are as follows: message is parsed first,
1) if heading is incorrect or CRC check does not pass through or purpose is not mutually the present apparatus, just abandoning should
Message；
2) if heading is correct and CRC check passes through and purpose is not mutually the present apparatus, reception judgement below is carried out:
If the source phase of 2a, the starting being currently received are consistent with the last time, if test serial number is less than last time
Serial number, then device starts, and otherwise abandons the message.
If the source phase and last difference of 2b, the starting being currently received, if starting time and last time
Greater than 500 μ s, then device starts, and otherwise abandons the message.
It receives after mutually correctly parsing received message, obtains fault moment information, search this and be mutually stored in FPGA
The line waveform of the moment point in circular buffer, carry out storage and on send afield backstage, examined to realize transmission line of electricity
The external starting of disconnected device.
Preferably, the external starting method suitable for transmission line of electricity diagnostic device, which is characterized in that defeated
It is communicated between electric line three-phase fault diagnostic device by frequency microwave wireless mode.
Preferably, the external starting method suitable for transmission line of electricity diagnostic device, which is characterized in that defeated
Time synchronization is carried out by GPS/ Beidou between electric line three-phase fault diagnostic device, it is ensured that acquired three-phase line waveform exists
Synchronization.
The utility model has the advantages that the depth convolutional network provided by the invention based on multiple dimensioned convolution kernel is examined suitable for transmission line of electricity
The external starting method of disconnected device guarantees the integrality of three-phase waveform, the side mutually started can be used between three-phase diagnostic device
Case has the advantage that
1) present invention can be realized the effective external starting of transmission line of electricity diagnostic device, communicate between multiphase diagnostic device
The wireless protocols being based on can fast and accurately transmission fault be separate, fault moment information, meanwhile, the essence based on GPS/ Beidou
Quasi- clock synchronization technology ensure that external starter on the waveform that send and the fault waveform sent in active starter be in same
A moment has practice significance.
2) based on external starting method of the invention, have the advantages that communication is quick, reliable and stable.
Detailed description of the invention
Fig. 1 is the schematic diagram of the reception mechanism for the message that embodiment receives phase.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.Following embodiment is only used for clearly saying
Bright technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment 1
A kind of external starting method suitable for transmission line of electricity diagnostic device, in each of Three-phase Power Systems transmission line of electricity
It is mutually disposed with a trouble-shooter, method includes:
The trouble-shooter of each phase acquires in real time and obtains the line waveform data of corresponding phase；And the line based on acquisition
Road Wave data carries out breakdown judge to the route of corresponding phase,
In response to judging that a phase line breaks down, will be sent in the line waveform data of the fault moment section of the failure phase,
And the message comprising current failure time information is sent to the trouble-shooter of other two-phase；
In addition the trouble-shooter of two-phase receives the message that failure is mutually sent；Received message is parsed, is obtained
Fault moment information；Based on fault moment information, search and by the corresponding moment section of this Xiang Yu failure phase fault moment section
Line waveform data carry out storage and on give.
Further, the message frame of the message meets following format:
| Heading | Purpose phase | Start phase | Send packet counting | Start the time | CRC check |
" purpose phase " is indicated to receive the separate of the message, be identified for receiving phase device；
" starting phase " indicates to send the separate of the message；
" sending packet counting ", i.e. serial number indicate that the message belongs to after message sends the same fault initiating of mutually ownership and send
Multipacket message in sequencing；
" starting time " indicates the time of this starting.
Further, the transmission for sending the message of phase continuously transmits the transmission mechanism of multipacket message using short interval, every
1ms sends 1 starting message, sends 3 times altogether.
Further, the reception mechanism of the message of phase is received are as follows: message is parsed first,
1) if heading is incorrect or CRC check does not pass through or purpose is not mutually the present apparatus, just abandoning should
Message；
2) if heading is correct and CRC check passes through and purpose is not mutually the present apparatus, reception judgement below is carried out:
If the source phase of 2a, the starting being currently received are consistent with the last time, if test serial number is less than last time
Serial number, then device starts, and otherwise abandons the message.
If the source phase and last difference of 2b, the starting being currently received, if starting time and last time
Greater than 500 μ s, then device starts, and otherwise abandons the message.
It receives after mutually correctly parsing received message, obtains fault moment information, search this and be mutually stored in FPGA
The line waveform of the moment point in circular buffer, carry out storage and on send afield backstage, examined to realize transmission line of electricity
The external starting of disconnected device.
Preferably, the external starting method suitable for transmission line of electricity diagnostic device, which is characterized in that defeated
It is communicated between electric line three-phase fault diagnostic device by frequency microwave wireless mode.
Preferably, the external starting method suitable for transmission line of electricity diagnostic device, which is characterized in that defeated
Time synchronization is carried out by GPS/ Beidou between electric line three-phase fault diagnostic device, it is ensured that acquired three-phase line waveform exists
Synchronization.
External starting method of the invention is the integrated approach of multiple technologies, is opened using wireless communication technique in single-phase fault
After dynamic, the device arranged on three-phase line quick response and can above send fault moment waveform.
A kind of external starting method suitable for transmission line of electricity diagnostic device, is first depending on the trouble-shooter of failure phase
After high speed numerical processor detects this phase fault, the separate and fault moment of itself is sent based on frequency microwave wireless protocols
To other two-phase, guarantee the waveform for obtaining synchronization based on GPS/ Beidou high-precision clock synchronization technology, when FPGA active is by failure
Waveform is carved to send to high speed processor, stored waveform and on send distant place backstage.
Specific step is as follows:
(1) it realizes according to field programmable device and high speed processor and is sent in failure real-time judge and fault waveform active:
The failure real-time judge and fault waveform actively go up delivery method are as follows: for on-site programmable device FPGA,
Control high-speed sampling chip is acquired transmission line of electricity waveform, the line electricity based on the phase that the collected present apparatus is monitored
Wave data is flowed, by the threshold value comparison with setting, carries out breakdown judge；After being judged as failure, enabling signal, starting record are issued
The Wave data of a period of time before and after fault moment is actively sent to the high speed numerical processor of this terminal by wave, passes through high speed
Digital processing unit stored waveform and on send afield backstage.
Fault waveform data are stored in a manner of recorded wave file, and the technology based on GPS/ Beidou high-precision clock synchronization ensure that dress
Setting the fault waveform document time sent on current is accurate fault moment, while but also between multiple distributed diagnostics devices
Be able to maintain accurately time synchronization, for the data based on more devices breakdown judge and waveform processing analysis carried out basis
It ensures.
(2) communication and quick response between multiphase diagnostic device are realized according to frequency microwave wireless technology:
Communication and fast response method between the multiphase diagnostic device are as follows: after transmission line of electricity breaks down, this
After the FPGA for the trouble-shooter that phase is arranged judges failure, the state whether started due to other two-phase be it is unknown,
It passes through message of the frequency microwave wireless transmission comprising information such as current failure moment to other two-phase.
After route single phase device judges fault initiating, to the message that other two-phase is sent, message frame meets following format:
| Heading | Purpose phase | Start phase | Send packet counting | Start the time | CRC check |
Wherein, by taking A phase starts as an example, in this frame message, " purpose phase " indicates to receive separate (such as B, C phase) of the message,
It is identified for receiving phase device, " starting phase " indicates to send separate (such as A phase) of the message, " sending packet counting ", i.e.,
Serial number indicates that the message belongs to A phase and belongs to that (such as 1 indicates the with the sequencing in the multipacket message sent after fault initiating
1 packet, 2 indicate the 2nd packet, and so on), " starting time " indicates the time of this starting.
The transmission mechanism of the message of phase is sent with rapidity as primary principle, combines reliability.It is fast in order to reach
The purpose of speed response, message is short to be spaced the transmission mechanism for continuously transmitting multipacket message by the way of broadcast, sends 1 every 1ms
Secondary starting message is sent 3 times altogether, guarantees starting reliability.
As shown in Figure 1, receiving the reception mechanism of the message of phase are as follows: parsed first to message, if heading is not just
Really or CRC check does not pass through or purpose is not mutually the present apparatus, then just abandoning the message；Otherwise, reception below is carried out
Judgement:
If situation 1, the source phase for the starting being currently received are consistent with the last time, if test serial number is less than last time
Serial number, then device start, otherwise abandon the message.
If situation 2, the source phase for the starting being currently received and last difference, if starting time and last time
Be greater than 500 μ s, then device start, otherwise abandon the message.
It receives after mutually correctly parsing received message, high speed numerical processor inside device is according to receiving
Fault moment information searches the line waveform of the moment point being stored in FPGA circular buffer, carry out storage and on send to remote
Side backstage, to realize the external starting of transmission line of electricity diagnostic device.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of external starting method suitable for transmission line of electricity diagnostic device, which is characterized in that transmit electricity in Three-phase Power Systems
Each phase of route is disposed with a trouble-shooter, and method includes:
The trouble-shooter of each phase acquires in real time and obtains the line waveform data of corresponding phase；And the route wave based on acquisition
Graphic data carries out breakdown judge to the route of corresponding phase,
In response to judging that a phase line breaks down, will be sent in the line waveform data of the fault moment section of the failure phase, and to
In addition the trouble-shooter of two-phase sends the message comprising current failure time information；
In addition the trouble-shooter of two-phase receives the message that failure is mutually sent；Received message is parsed, failure is obtained
Time information；Based on fault moment information, search and by the route of the corresponding moment section of this Xiang Yu failure phase fault moment section
Wave data carry out storage and on give.
2. the external starting method according to claim 1 suitable for transmission line of electricity diagnostic device, which is characterized in that described
The message frame of message meets following format:
" purpose phase " is indicated to receive the separate of the message, be identified for receiving phase device；
" starting phase " indicates to send the separate of the message；
" send packet counting ", i.e. serial number indicate that the message belongs to message and sends and mutually belong to sending after a fault initiating
Sequencing in multipacket message；
" starting time " indicates the time of this starting.
3. the external starting method according to claim 1 suitable for transmission line of electricity diagnostic device, which is characterized in that send
The transmission of the message of phase continuously transmits the transmission mechanism of multipacket message using short interval, sends 1 starting message every 1ms, altogether
It sends 3 times.
4. the external starting method according to claim 1 suitable for transmission line of electricity diagnostic device, which is characterized in that receive
The reception mechanism of the message of phase are as follows: message is parsed first,
1) if heading is incorrect or CRC check does not pass through or purpose is not mutually the present apparatus, the message is just abandoned；
2) if heading is correct and CRC check passes through and purpose is not mutually the present apparatus, reception judgement below is carried out:
If the source phase of 2a, the starting being currently received are consistent with the last time, if test serial number is less than the serial number of last time,
Then device starts, and otherwise abandons the message；
If the source phase and last difference of 2b, the starting being currently received, if the starting time is greater than with last
500 μ s, then device starts, and otherwise abandons the message.
5. the external starting method according to claim 1 suitable for transmission line of electricity diagnostic device, which is characterized in that transmission of electricity
It is communicated between route three-phase fault diagnostic device by frequency microwave wireless mode.
6. the external starting method according to claim 1 suitable for transmission line of electricity diagnostic device, which is characterized in that transmission of electricity
Time synchronization is carried out by GPS/ Beidou between route three-phase fault diagnostic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811485447.7A CN109557416A (en) | 2018-12-06 | 2018-12-06 | A kind of external starting method suitable for transmission line of electricity diagnostic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811485447.7A CN109557416A (en) | 2018-12-06 | 2018-12-06 | A kind of external starting method suitable for transmission line of electricity diagnostic device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130229735A1 (en) * | 2011-08-25 | 2013-09-05 | Ssi Power, Llc | High-impedance fault detection and isolation system |
| CN106093627A (en) * | 2016-06-01 | 2016-11-09 | 武汉中元华电科技股份有限公司 | Digital transformer substation power quality event record ripple monitoring device and monitoring method |
| CN106556754A (en) * | 2016-10-12 | 2017-04-05 | 国网上海市电力公司 | A kind of online acquisition method of distribution line failure waveform |
| CN107015110A (en) * | 2017-04-01 | 2017-08-04 | 云南电网有限责任公司瑞丽供电局 | Synchronous recording fault location system, method |
| CN107390090A (en) * | 2017-07-28 | 2017-11-24 | 思源电气股份有限公司 | A kind of circuitry fault detection method and system |
-
2018
- 2018-12-06 CN CN201811485447.7A patent/CN109557416A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130229735A1 (en) * | 2011-08-25 | 2013-09-05 | Ssi Power, Llc | High-impedance fault detection and isolation system |
| CN106093627A (en) * | 2016-06-01 | 2016-11-09 | 武汉中元华电科技股份有限公司 | Digital transformer substation power quality event record ripple monitoring device and monitoring method |
| CN106556754A (en) * | 2016-10-12 | 2017-04-05 | 国网上海市电力公司 | A kind of online acquisition method of distribution line failure waveform |
| CN107015110A (en) * | 2017-04-01 | 2017-08-04 | 云南电网有限责任公司瑞丽供电局 | Synchronous recording fault location system, method |
| CN107390090A (en) * | 2017-07-28 | 2017-11-24 | 思源电气股份有限公司 | A kind of circuitry fault detection method and system |
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