CN105182174B - Self-compensating formula pilot protection based on alternate channel exchanges isochronous controller - Google Patents
Self-compensating formula pilot protection based on alternate channel exchanges isochronous controller Download PDFInfo
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- CN105182174B CN105182174B CN201410275782.XA CN201410275782A CN105182174B CN 105182174 B CN105182174 B CN 105182174B CN 201410275782 A CN201410275782 A CN 201410275782A CN 105182174 B CN105182174 B CN 105182174B
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Abstract
The present invention relates to a kind of self-compensating formula pilot protection based on alternate channel to exchange isochronous controller.The device is used as means of communication by the use of pilot protection alternate channel; time synchronized, using accurate compensation, relies only on both sides protection test instrument each clock itself by surveying communication channel actual time delay; do not require that protection test instrument clock in both sides is consistent, independent of absolute time or external clock.Fundamentally solve longitudinal differential protection system and timing both sides are difficult to synchronous technical problem.It can realize that protection is exchanged each experimental project and is fully completed before circuit puts into operation, the net synchronization capability of abundant experimental verification circuit both sides protection device, ensure that circuit is reliable and secure and put into operation, shorten route protection and exchange the time, save the line start time.So that circuit puts into operation early, economic benefit is produced early.It can be widely applied in the pilot protection of ultra-high-tension power transmission line.
Description
Technical field
The present invention relates to the device that a kind of self-compensating formula pilot protection based on alternate channel exchanges Synchronization Control, especially
It is related to a kind of self-compensating formula pilot protection based on alternate channel that HV line pilot protection is used timing and exchanges synchronization
The device of control.
Background technology
For ultra-high-tension power transmission line pilot protection (longitudinal differential, distance, zero sequence etc.) before putting into operation, both sides protection device must
Actual communication channel must be connected to be exchanged.This side protection device, offside protection device, communication channel are by exchanging checking three
It is suitable that person coordinates, and protection device is correct by exchanging checking action logic, and pilot protection can formally put into operation.When circuit is real
During the failure of border, the protection device of circuit both sides is that (synchronization) simultaneously measures failure, but when exchanging experiment, the protection of both sides
How simultaneously (synchronization) occurs test instrument for simulated failure, is always to perplex the technical barrier that pilot protection is exchanged.
There are two kinds of solutions at present.Scheme 1：Individually simulated failure progress some projects are exchanged for this side and offside,
Both sides stationary problem wouldn't be debugged.Until firing test, operation department changes system fortune according to the specific electric position of circuit
Line mode, and corresponding back-up protection is set, nuclear phase and phasor inspection are come indirect verification two when starting powered using primary equipment
The synchronization of side protection device.This scheme needs system to switch method of operation cooperation, adds the operation peace of high pressure primary equipment
Full hidden danger；And this circuit needs the protection of system neighbouring device to be used as this line backup protection；If both sides protection device is same
Walk it is problematic, it is necessary to the circuit that stops startup come search processing, time and effort consuming.Scheme 2：This side and offside protection device are all distinguished
Access gps antenna and receive gps signal, both sides device is consistent with gps time respectively.This side and offside relay protection experimental instrument
Between there is no direct electric signal to contact.Testing crew mutually coordinated ditch before each experimental project in both sides is had friendly relations, and is set respectively
Put identical simulated failure type and the test parameters that is mutually related, both sides device exports failure simultaneously after reaching the scheduled time
Amount.This mode needs to set up gps antenna, relies on gps signal, for the test instrument in factory building and inconvenient, also easily by
The factors such as extreme weather influence, and often abandon simultaneous test project because can not receive gps signal；And each project is both sides
Testing crew determines according to scheme → test parameters sets uniformity determination → setting test parameters → test period is arranged → to open
This mode of experiment that begins is carried out.For multi-mode evolved fault, because being that both sides are set respectively, it is numb to simulate comparison
Tired, efficiency is low, and experiment often carries out not smooth.Finally it is forced to switch to take the mode of scheme 1.
Based on above description, the problem of prior art is present is that the precise synchronization of both sides protection device is difficult to.
The content of the invention
(1) technical problems to be solved
The technical problem to be solved in the present invention is how to provide a kind of isochronous controller so that both sides protection device can be with
Precise synchronization is realized on the premise of easy to operate.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of self-compensating formula pilot protection based on alternate channel
Exchange isochronous controller, it is characterised in that insert including casing, power insert, control plug-in unit, CPU card, man-machine plug-in unit, communication
Part；
Its middle case is made up of parts such as lower plate, upper plate, backboard and left and right plates；There is fixing pluge effect on the inside of lower plate
The first track, the second track, the 3rd track, the 4th track, the 5th track；There is the 6th that fixing pluge acts on the inside of upper plate
Track, the 7th track, the 8th track, the 9th track, the tenth track；There are the circuit that plug-in unit is connected with each other, backboard inner side in backboard
There are the first slot, the second slot, the 3rd slot, the 4th slot, the 5th slot of connection insert circuitry；
Power insert is fixed with the first track in casing, the 6th track respectively by lower and upper neck, the power insert back of the body
Plug connects with the first slot in casing on the outside of plate；
Control plug-in unit is fixed with the second track in casing, the 7th track respectively by lower and upper neck, the control plug-in unit back of the body
Plug connects with the second slot in casing on the outside of plate；
CPU card is fixed with the 3rd track, the 8th track in casing respectively by lower and upper neck, CPU card backboard
Outside plug connects with the 3rd slot in casing, is inserted respectively with control plug-in unit, CPU by the circuit in the postnotum of casing
Part, man-machine plug-in unit, communication plug connection；
Man-machine plug-in unit is fixed with the 4th track, the 9th track in casing respectively by lower and upper neck, the man-machine plug-in unit back of the body
Plug connects with the 4th slot in casing on the outside of plate；
Communication plug is fixed with the 5th track, the tenth track in casing respectively by lower and upper neck, the communication plug back of the body
Plug connects with the 5th slot in casing on the outside of plate.
Preferably, the 220V AC powers of input are changed into after low-voltage direct to other each plug-in units by the power insert
DC supply is provided.
Preferably, after the control plug-in unit receives the signal of CPU card, TD is converted into, and connect by standard K EY
Mouth is connected with protection test instrument.
Preferably, the man-machine plug-in unit sets and shows " master "/" from " working method of isochronous controller, " this side
Location ", " offside address ", " compensation time ".
Preferably, the communication plug has transmitting-receiving ST optical ports, connects pilot protection alternate channel, and standby by pilot protection
Communicated with passage and offside isochronous controller.
Preferably, the CPU card reads the arrange parameter in man-machine plug-in unit, and working method is selected according to parameter；
The CPU card sends out the signal of target during band to offside by communication plug, and is connect by communication plug
By the signal of offside；
The order of the CPU card starting protection test instrument is by controlling plug-in unit to send.
The present invention also provides a kind of self-compensating formula pilot protection based on alternate channel and exchanges isochronous controller realization pair
The method for adjusting time synchronized, it is characterised in that comprise the following steps：
Step 1：" master " mode side base is exchanged isochronous controller in the self-compensating formula pilot protection of alternate channel and first sent
One signal, " from " mode side base exchange isochronous controller in the self-compensating formula pilot protection of alternate channel and receive this letter
Number, communication channel delay time Td is thus measured,；Master " mode side base is exchanged in the self-compensating formula pilot protection of alternate channel
Isochronous controller shifts to an earlier date TdSelf-compensating formula pilot protection of the time to " from " mode side base in alternate channel exchanges Synchronization Control
Device sends instructions, and instruction starts the side protection test instrument；TdAgain to " master " mode side base in the self-compensating of alternate channel after time
Formula pilot protection is exchanged isochronous controller and sent instructions, and instruction starts the side protection test instrument；
Step 2：Protection test instrument in both sides all inputs power frequency sine wave current signal to protection device, protects and fills in this side
Put and read δ ° of this side electric current and offside current and phase difference, when offside current phase lags this side current phase, the compensation time isDuring advanced this side current phase of offside current phase, the compensation time is
Step 3：By the man-machine interface input offset time, " master " mode side base is indulged in the self-compensating formula of alternate channel
UNPROFOR shield exchanges isochronous controller and shifts to an earlier date the Td+Tb times to " from " mode side base in the self-compensating formula pilot protection of alternate channel
Exchange isochronous controller to send instructions, the self-compensating formula after the Td+Tb times again to " master " mode side base in alternate channel indulges UNPROFOR
Shield is exchanged isochronous controller and sent instructions, and both sides protection test instrument is received after instruction to this side protection device input sine wave,
Side protection device reads this side electric current and offside current and phase difference, if phase is not 0, continues to mend by the compensation method of second step
Repay, phase 0, then illustrate both sides precise synchronization, it is possible to start to exchange.
(3) beneficial effect
The invention discloses a kind of self-compensating formula pilot protection based on alternate channel to exchange isochronous controller.The device
Mended by the use of pilot protection alternate channel as means of communication, time synchronized by surveying communication channel actual time delay, and using accurate
Repay, rely only on both sides protection test instrument each clock itself, do not require that both sides test instrument clock is consistent, independent of absolute time
Between or external clock.Both sides are difficult to synchronous technical problem when fundamentally solving longitudinal differential protection system pair.Can be in circuit
Realize that protection is exchanged each experimental project and is fully completed before putting into operation, the synchronism of abundant experimental verification circuit both sides protection device
Can, ensure that circuit is reliable and secure and put into operation, shorten route protection and exchange the time, save the line start time.So that circuit is thrown early
Enter operation, produce economic benefit early.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1：Self-compensating formula pilot protection provided by the invention based on alternate channel exchanges the structure of isochronous controller
Connection diagram；
Fig. 2：The self-compensating formula pilot protection based on alternate channel of the offer of the present invention exchanges the case of isochronous controller
The structural representation of body；
In figure：1st, casing；2nd, power insert；3rd, plug-in unit is controlled；4th, CPU card；5th, man-machine plug-in unit；6th, communication plug；7、
Lower plate；8th, upper plate；9th, backboard；10th, the first track；11st, the second track；12nd, the 3rd track；13rd, the 4th track；14th, the 5th rail
Road；15th, the 6th track；16th, the 7th track；17th, the 8th track；18th, the 9th track；19th, the tenth track；20th, the first slot；
21st, the second slot；22nd, the 3rd slot；23rd, the 4th slot；24th, the 5th slot.
Embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following examples are used for
Illustrate the present invention, but can not be used for limiting the scope of the present invention.
As shown in figure 1, the self-compensating formula pilot protection based on mobile communication of the present embodiment exchanges isochronous controller, bag
Include casing 1, power insert 2, control plug-in unit 3, CPU card 4, man-machine plug-in unit 5, communication plug 6.
Casing 1 is made up of parts such as lower plate 7, upper plate 8, backboard 9 and left and right plates.There has been fixing pluge effect the inner side of lower plate 7
The first track 10, the second track 11, the 3rd track 12, the 4th track 13, the 5th track 14；There has been fixed insert the inner side of upper plate 8
The 6th track 15, the 7th track 16, the 8th track 17, the 9th track 18, the tenth track 19 of part effect；There is plug-in unit in backboard 9
There are the first slot 20, the second slot 21, the 3rd slot the 22, the 4th of connection insert circuitry in the circuit of interconnection, the inner side of backboard 9
Slot 23, the 5th slot 24.
Power insert 2 is fixed with the first track 10, the 6th track 15 in casing 1 respectively by lower and upper neck, power supply
The first slot 20 on the outside of the backboard of plug-in unit 2 in plug and casing 1 connects.Control plug-in unit 3 by lower and upper neck respectively and casing
The second track 11, the 7th track 16 in 1 are fixed, and control the second slot 21 on the outside of the backboard of plug-in unit 3 in plug and casing 1 to connect
Connect.CPU card 4 is fixed with the 3rd track 12 in casing 1, the 8th track 17 respectively by lower and upper neck, and CPU card 4 is carried on the back
The 3rd slot 22 on the outside of plate in plug and casing 1 connects.Man-machine plug-in unit 5 by lower and upper neck respectively with casing 1
Four tracks 13, the 9th track 18 are fixed, and the 4th slot 23 on the outside of the man-machine backboard of plug-in unit 5 in plug and casing 1 connects.Communication is inserted
Part 6 is fixed with the 5th track 14 in casing 1, the tenth track 19 respectively by lower and upper neck, on the outside of the backboard of communication plug 6
The 5th slot 24 in plug and casing 1 connects.
The 220V AC powers of input can be changed into low-voltage direct by power insert 2, in the postnotum by casing 1
Circuit provides DC supply to other each plug-in units.
Control plug-in unit 3 pass through casing 1 postnotum in circuit and CPU card 4 connect, control plug-in unit 3 can receive CPU
After the signal of plug-in unit 4 and it is converted into TD and is connected by standard K EY interfaces with protection test instrument.
The circuit and CPU card 4 that man-machine plug-in unit 5 passes through casing 1 in postnotum connect, and can set and show synchronous control
Device " master "/" from " working method processed, the parameter such as " this side address ", " offside address ", " compensation time ".Circuit is to timing, circuit
Both sides respectively set a stylobate and exchange isochronous controller in the self-compensating formula pilot protection of mobile communication, control the protection of this side respectively
Test instrument.This side is set to " lead " working method when self-compensating formula pilot protection based on mobile communication exchanges synchronizer work,
Then offside is set to " from " working method, or this side is set to " from " working method, and offside is set to " lead " working method.
The circuit and CPU card 4 that communication plug 6 passes through casing 1 in postnotum connect, and communication plug 6 has transmitting-receiving ST light
Mouthful, pilot protection alternate channel can be connected, and can be communicated by pilot protection alternate channel and offside isochronous controller.
The circuit in postnotum that CPU card 4 passes through casing 1 respectively with control plug-in unit 3, CPU card 4, man-machine plug-in unit 5,
Communication plug 6 connects.CPU card 4 can read the arrange parameter in man-machine plug-in unit 5, and working method is selected according to parameter.CPU
Plug-in unit 4 can send out the signal of target during band to offside by communication plug 6, and receive offside by communication plug 6
Signal.The order of the starting protection test instrument of CPU card 4 is by controlling plug-in unit 3 to send.Time synchronized is mainly real in CPU card 4
It is existing.
CPU card 4 divides exchanges time synchronized for three processes realizations.
The first step, the actual measurement of communication channel delay time, " master " mode side base indulge connection in the self-compensating formula of mobile communication
Protection exchanges isochronous controller and first sends a signal, and side base is in the self-compensating formula pilot protection of mobile communication in a manner of " master "
It is T constantly to exchange sending for isochronous controller clock timingbf, time of reception Tbs, " from " mode side base in mobile communication from
My compensation pilot protection exchanges isochronous controller and receives this signal, and side base is in the self-compensating of mobile communication in a manner of " from "
It is T constantly that formula pilot protection, which exchanges sending for isochronous controller clock timing,df, time of reception Tds, then communication channel delay be:
" master " mode side base exchanges isochronous controller in the self-compensating formula pilot protection of mobile communication and shifts to an earlier date TdTime to
" from " mode side base exchanges isochronous controller hair TD in the self-compensating formula pilot protection of mobile communication, and TD opens
Move side protection test instrument experiment.TdAgain to " master " mode side base in the self-compensating formula pilot protection pair of mobile communication after time
Isochronous controller hair TD is adjusted, TD starts side protection test instrument experiment.Ensure that both sides substantially simultaneously
Start to test.
Second step, compensate the time, it is above-mentioned start experiment when both sides protection test instrument all to protection device input power frequency just
String signal wave current, δ ° of this side electric current and offside current and phase difference are read in this side protection device, then offside current phase lags
During this side current phase, the compensation time isDuring advanced this side current phase of offside current phase, the compensation time is
3rd step, precise synchronization, by the man-machine interface input offset time, " master " mode side base in mobile communication self
Compensation pilot protection exchanges isochronous controller and shifts to an earlier date Td+TbTime is to " from " mode side base in the self-compensating formula of mobile communication
Pilot protection exchanges isochronous controller hair TD, Td+TbAgain to " master " mode side base in self benefit of mobile communication after time
The formula pilot protection of repaying exchanges isochronous controller hair TD, and both sides test instrument receives defeated to this side protection device after TD
Enter sine wave, this side electric current and offside current and phase difference are read in this side protection device, if phase is not 0, by second step
Compensation method continues to compensate, and phase 0, then illustrates both sides precise synchronization.Can starts to exchange.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although with reference to embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that, to technical scheme carry out it is various combination,
Modification or equivalent substitution, without departure from the spirit and scope of technical solution of the present invention, the right that all should cover in the present invention is wanted
Ask among scope.
Claims (5)
1. a kind of self-compensating formula pilot protection based on alternate channel exchanges isochronous controller, it is characterised in that including casing
(1), power insert (2), control plug-in unit (3), CPU card (4), man-machine plug-in unit (5), communication plug (6)；
Its middle case (1) includes lower plate (7), upper plate (8), backboard (9) and left and right plate；There is fixing pluge work on the inside of lower plate (7)
First track (10), the second track (11), the 3rd track (12), the 4th track (13), the 5th track (14)；Upper plate (8)
There have been the 6th track (15) that fixing pluge acts on, the 7th track (16), the 8th track (17), the 9th track (18), the in inner side
Ten tracks (19)；There is the circuit that plug-in unit is connected with each other in backboard (9), the first slot for having connection insert circuitry on the inside of backboard (9)
(20), the second slot (21), the 3rd slot (22), the 4th slot (23), the 5th slot (24)；
Power insert (2) is fixed with the first track (10) in casing (1), the 6th track (15) respectively by lower and upper neck,
The first slot (20) connection on the outside of power insert (2) backboard in plug and casing (1)；
Plug-in unit (3) is controlled to pass through fixed, the control with the track (11) in casing (1), the 7th track (16) respectively of lower and upper neck
The second slot (21) connection on the outside of plug-in unit (3) backboard in plug and casing (1)；
CPU card (4) is fixed with the 3rd track (12) in casing (1), the 8th track (17) respectively by lower and upper neck,
The 3rd slot (22) connection on the outside of CPU card (4) backboard in plug and casing (1), passes through the electricity in the postnotum of casing (1)
Road connects with control plug-in unit (3), CPU card (4), man-machine plug-in unit (5), communication plug (6) respectively；
Man-machine plug-in unit (5) is fixed with the 4th track (13) in casing (1), the 9th track (18) respectively by lower and upper neck,
The 4th slot (23) connection on the outside of man-machine plug-in unit (5) backboard in plug and casing (1)；
Communication plug (6) is fixed with the 5th track (14) in casing (1), the tenth track (19) respectively by lower and upper neck,
The 5th slot (24) connection on the outside of communication plug (6) backboard in plug and casing (1)；
The communication plug (6) has transmitting-receiving ST optical ports, connects pilot protection alternate channel, and by pilot protection alternate channel and
Offside isochronous controller communicates；
The CPU card (4) reads the arrange parameter in man-machine plug-in unit (5), and working method is selected according to parameter；
The CPU card (4) sends out target signal during band to the offside isochronous controller by communication plug (6), and
Receive the signal of the offside isochronous controller by communication plug (6)；
The order of CPU card (4) the starting protection test instrument is by controlling plug-in unit (3) to send.
2. the self-compensating formula pilot protection according to claim 1 based on alternate channel exchanges isochronous controller, it is special
Sign is that the 220V AC powers of input are changed into after low-voltage direct by the power insert (2) to be provided to other each plug-in units
DC supply.
3. the self-compensating formula pilot protection according to claim 1 based on alternate channel exchanges isochronous controller, it is special
Sign is, after the control plug-in unit (3) receives the signal of CPU card (4), is converted into TD, and pass through standard K EY interfaces
It is connected with protection test instrument.
4. the self-compensating formula pilot protection according to claim 1 based on alternate channel exchanges isochronous controller, it is special
Sign is that the man-machine plug-in unit (5) sets and shows " master "/" from " working method of isochronous controller, " this side address ", " right
Side address ", " compensation time ".
5. the self-compensating formula pilot protection as claimed in any of claims 1 to 4 based on alternate channel is exchanged together
Step controller realizes the method for exchanging time synchronized, it is characterised in that comprises the following steps：
Step 1：" master " mode side base exchanges isochronous controller in the self-compensating formula pilot protection of alternate channel and first sends one
Signal, " from " mode side base exchange isochronous controller in the self-compensating formula pilot protection of alternate channel and receive this signal, by
This measurement communication channel delay time Td；Master " mode side base exchanges synchronous control in the self-compensating formula pilot protection of alternate channel
Device processed shifts to an earlier date TdTime exchanges isochronous controller in the self-compensating formula pilot protection of alternate channel to " from " mode side base and bristled with anger
Order, instruction start the side protection test instrument；TdSelf-compensating formula after time again to " master " mode side base in alternate channel indulges connection
Protection is exchanged isochronous controller and sent instructions, and instruction starts the side protection test instrument；
Step 2：Protection test instrument in both sides all inputs power frequency sine wave current signal to protection device, is read in this side protection device
δ ° of this side electric current and offside current and phase difference are taken, when offside current phase lags this side current phase, the compensation time isDuring advanced this side current phase of offside current phase, the compensation time is
Step 3：By the man-machine interface input offset time, " master " mode side base indulges UNPROFOR in the self-compensating formula of alternate channel
Shield, which exchanges isochronous controller and shifts to an earlier date self-compensating formula pilot protection of the Td+Tb times to " from " mode side base in alternate channel, exchanges
Isochronous controller sends instructions, again to " master " mode side base in the self-compensating formula pilot protection pair of alternate channel after the Td+Tb times
Adjust isochronous controller send instructions, both sides protection test instrument receive instruction after give this side protection device input sine wave, this side guarantor
Protection unit reads this side electric current and offside current and phase difference, if phase is not 0, continues to compensate by the compensation method of second step,
Phase is 0, then illustrates both sides precise synchronization, it is possible to starts to exchange.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410275782.XA CN105182174B (en) | 2014-06-19 | 2014-06-19 | Self-compensating formula pilot protection based on alternate channel exchanges isochronous controller |
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| CN201410275782.XA CN105182174B (en) | 2014-06-19 | 2014-06-19 | Self-compensating formula pilot protection based on alternate channel exchanges isochronous controller |
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| CN105182174B true CN105182174B (en) | 2018-03-06 |
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| Publication number | Publication date |
|---|---|
| CN105182174A (en) | 2015-12-23 |
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