CN110148921A - A kind of relay protection and control method, system and M take N tripgear - Google Patents
A kind of relay protection and control method, system and M take N tripgear Download PDFInfo
- Publication number
- CN110148921A CN110148921A CN201910385490.4A CN201910385490A CN110148921A CN 110148921 A CN110148921 A CN 110148921A CN 201910385490 A CN201910385490 A CN 201910385490A CN 110148921 A CN110148921 A CN 110148921A
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- Prior art keywords
- relay
- tripgear
- takes
- protective device
- taken
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
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- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to a kind of relay protection and control method, system and M to take N tripgear, when protective device meets protection entry condition according to electrical quantity parameter decision, takes N tripgear to send enabled instruction to M；When protective device judgement meets protection act condition, N tripgear sending action is taken to instruct to M；After M takes N tripgear to receive enabled instruction, the tripping outlet power of open relay；After M takes N tripgear to receive action command; carrying out M takes N relay protective scheme to differentiate; meet M and take and issues trip command to relay after N relay protective scheme criterion; save the time of the tripping outlet power of independent open relay; namely the actuation time of starting relay is saved; the communication link between N tripgear is taken from protective device and M to shorten whole group actuation time, without improving movement speed by the operating voltage for increasing relay, improves the Reliability of Microprocessor of relay.
Description
Technical field
The present invention relates to a kind of relay protection and control method, system and M to take N tripgear.
Background technique
Harmonics have using duplicate system retrofit structure, also have using two from three configuration structure, there are also other configurations
Structure, for example, four take it is third.By taking transformer as an example, it is desirable that triple modular redundant protection equipment for transformer adds two from three tripgear to meet
" DL_T 770-2012 protection equipment for transformer general technical specifications ", i.e., under 1.5 times of action currents, fast differential over current protection is whole
Group actuation time is not more than 20ms；Under 2 times of action currents, biased differential protection whole group actuation time is not more than 30ms.With three
For taking two configuration structures, process is entirely protected are as follows: first basis detects that relevant electrical quantity parameter is protected to protective device
The differentiation of starting meets the differentiation of progress protection act after entry condition, when protective device judgement meets protection act condition,
It is instructed to two from three tripgear sending action, after two from three tripgear receives action command, carries out two from three logic
Differentiate, meets the tripping outlet power of the corresponding relay of opening two from three tripgear after two from three logic discrimination condition, it is complete
At later, i.e., just control relay trips after connection trip(ping) circuit.In this case, whole group actuation time refers to: protecting
Protection unit from detecting that input signal is more than setting value to the total time the action of relay contact of two from three tripgear,
Include protective device detect input signal be more than time of setting value, protective device carry out action logic judgement time,
Time (if any) of delay set by protective device, two from three tripgear are to the institutes such as time of its relay excitation
The summation of having time.
Fig. 1 is the whole group actuation time schematic diagram of existing two from three configuration structure.For two from three configuration structure,
Wherein protective device from detect input signal be more than time of setting value, protective device carry out action logic judgement time,
Time of delay set by protective device and two from three tripgear to time required for its relay excitation etc. etc. this
The times are fixed a bit, compare and are difficult to shorten.Ordinary skill need the very big energy of flower shorten two from three tripgear into
Time of logic judgment is made in action, to improve movement speed, but shorten two from three tripgear carry out action logic judgement when
Between with improve two from three tripgear reliability be usually conflicting.
The movement of relay can be improved by applying the voltage higher than rated operational voltage to the relay of two from three tripgear
Speed to shorten two from three tripgear to the time required for its relay excitation, but can shorten the coil life of relay,
And relay tip is it is possible that jump, leads to arcing, shorten the service life of relay tip, and makes movement can not
It leans on.
Summary of the invention
The object of the present invention is to provide a kind of relay protection and control methods, take N tripgear to act to solve existing M
When, the insecure problem of the actuating of relay can be made by way of improving movement speed increasing the operating voltage of relay.This
Invention also provides a kind of relay protection system, when taking N tripgear to act to solve the M in existing relay protection system,
It can make the insecure problem of the actuating of relay by way of improving movement speed increasing the operating voltage of relay.The present invention
A kind of M is also provided and takes N tripgear, when taking N tripgear to act to solve existing M, passes through the work for increasing relay
Voltage can make the insecure problem of the actuating of relay to improve the mode of movement speed.
To achieve the above object, the solution of the present invention includes a kind of relay protection and control method, comprising the following steps:
When protective device meets protection entry condition according to the relevant electrical quantity parameter decision detected, N is taken to jump to M
Brake gear sends enabled instruction；When protective device judgement meets protection act condition, N tripgear sending action is taken to refer to M
It enables；M >=N, M >=2, N >=1；After M takes N tripgear to receive at least one enabled instruction, open M takes N tripgear corresponding
Relay tripping outlet power；After M takes N tripgear to receive action command, carries out M and N relay protective scheme is taken to differentiate, it is full
Sufficient M takes and issues trip command to corresponding relay after N relay protective scheme criterion.
When there is protective device to meet protection entry condition according to the electrical quantity parameter decision detected, just N is taken to trip to M
Device sends enabled instruction, and M opens corresponding relay tripping after taking N tripgear to receive at least one enabled instruction goes out
Mouth power supply, that is to say, that take N tripgear to receive as long as M even opening corresponding relay as long as only one enabled instruction
Tripping outlet power, this mode is able to ascend the reliability of movement, makes M that N tripgear be taken as much as possible to carry out tripping
Preparation, to promote subsequent Reliability of Microprocessor.After M takes N tripgear to receive action command, carries out M and N is taken to protect
Logic discrimination, relay tripping can be immediately controlled by meeting after M takes N relay protective scheme criterion.Due to it is existing be to protect
Protection unit, which issues, to carry out M after action command N relay protective scheme is taken to differentiate, after meeting M and taking N relay protective scheme criterion, just opening
The tripping outlet power of relay, just control relay tripping after completing.Therefore, the relay protection and control side that this programme provides
In method, the tripping outlet power of open relay and movement judge while carrying out that the tripping for saving independent open relay goes out
The time of mouth power supply, namely the actuation time of starting relay has been saved, therefore, the relay protection and control method that this programme provides
The communication link between N tripgear is taken from protective device and M to shorten whole group actuation time, without by increasing relay
Operating voltage improves movement speed, improves the Reliability of Microprocessor of relay.In addition, the relay protection and control that this programme provides
Method is simple, reliable, realizes that threshold is lower, has high promotional value.
Further, the M=3, N=2.
The present invention also provides a kind of relay protection systems, including M protective device and at least one M to take N tripgear, respectively
Protective device and M take N tripgear to communicate to connect, M >=N, M >=2, N >=1, when protective device is according to the relevant electricity detected
When tolerance parameter decision meets protection entry condition, N tripgear is taken to send enabled instruction to M；When protective device determines to meet
When protection act condition, N tripgear sending action is taken to instruct to M；Refer to when M takes N tripgear to receive at least one starting
After order, open M takes the tripping outlet power of the corresponding relay of N tripgear；When M takes N tripgear to receive action command
Afterwards, carrying out M takes N relay protective scheme to differentiate, meets M and takes and issues trip command to corresponding relay after N relay protective scheme criterion.
When there is protective device to meet protection entry condition according to the electrical quantity parameter decision detected, just N is taken to trip to M
Device sends enabled instruction, and M opens corresponding relay tripping after taking N tripgear to receive at least one enabled instruction goes out
Mouth power supply, that is to say, that take N tripgear to receive as long as M even opening corresponding relay as long as only one enabled instruction
Tripping outlet power, this mode is able to ascend the reliability of movement, makes M that N tripgear be taken as much as possible to carry out tripping
Preparation, to promote subsequent Reliability of Microprocessor.After M takes N tripgear to receive action command, carries out M and N is taken to protect
Logic discrimination, relay tripping can be immediately controlled by meeting after M takes N relay protective scheme criterion.Due to it is existing be to protect
Protection unit, which issues, to carry out M after action command N relay protective scheme is taken to differentiate, after meeting M and taking N relay protective scheme criterion, just opening
The tripping outlet power of relay, just control relay tripping after completing.Therefore, the relay protection system that this programme provides
In, the tripping outlet power of open relay and the movement of protective device judge while carrying out, and save independent open relay
Tripping outlet power time, namely saved the actuation time of starting relay, therefore, taken N to trip from protective device and M
Communication link between device shortens whole group actuation time, without improving movement speed by the operating voltage for increasing relay
Degree, improves the Reliability of Microprocessor of relay.
Further, the M=3, N=2.
The present invention also provides a kind of M to take N tripgear, M >=N, M >=2, N >=1, the guarantor that the M takes N tripgear to realize
Shield control process includes: after receiving at least one enabled instruction of protective device transmission, and open M takes N tripgear corresponding
Relay tripping outlet power；After receiving the action command of protective device transmission, carries out M and N relay protective scheme is taken to differentiate,
Meet M and take and issues trip command to corresponding relay after N relay protective scheme criterion.
The tripping outlet power of M open corresponding relay after taking N tripgear to receive at least one enabled instruction,
That is taking N tripgear to receive as long as M even opening the tripping outlet of corresponding relay as long as only one enabled instruction
Power supply, the preparation for making M that N tripgear be taken as much as possible to carry out tripping, to promote subsequent Reliability of Microprocessor.When M takes N
After tripgear receives action command, carries out M and N relay protective scheme is taken to differentiate, meet M and take energy after N relay protective scheme criterion
Relay tripping is enough immediately controlled.Due to it is existing be protective device issue action command after carry out M take N relay protective scheme to sentence
Not, after meeting M and taking N relay protective scheme criterion, the tripping outlet power of ability open relay just controls relay after completing
Device tripping.Therefore, the movement of the tripping outlet power of open relay and protective device judges while carrying out, and saves and individually opens
The time for putting the tripping outlet power of relay, namely saved the actuation time of starting relay, therefore, from protective device and
M takes the communication link between N tripgear to shorten whole group actuation time, without mentioning by the operating voltage for increasing relay
High movement speed improves the Reliability of Microprocessor of relay.
Further, the M=3, N=2.
Detailed description of the invention
Fig. 1 is the whole group actuation time schematic diagram of existing two from three configuration structure；
Fig. 2 is the whole group actuation time schematic diagram of two from three configuration structure provided by the invention；
When Fig. 3 is existing whole group actuation time and relay protection and control method provided by the invention corresponding whole group movement
Between comparison diagram.
Specific embodiment
Relay protection system embodiment:
The present embodiment provides a kind of relay protection systems, including M protective device and M to take N tripgear, wherein M takes N
The number of tripgear can be one, and all protective devices take N tripgear to communicate to connect with the M, certainly, in order to mention
High redundancy, M take the number of N tripgear to can also be at least two, and all protective devices take N tripgear with each M
Communication connection, this overall structure belong to the prior art, just no longer illustrate here.The present embodiment takes N tripping dress with a M
It is set to example.
The number M of protective device takes the type of N tripgear related to M, wherein M >=N, M >=2, N >=1, for example, two take
One tripgear, two from three tripgear, three take a tripgear, four that three tripgears, four is taken to take four tripgears etc., always
It, the numerical value of M and N depend on M and take the logic judgment strategy inside N tripgear.Following relay protection and control processes are not
It is confined to the concrete type that M takes N tripgear, below by taking relatively common two from three tripgear as an example, then, which protects
Just comprising 3 protective devices and 1 two from three tripgear in protecting system.
Electrical quantity parameter (such as electric current perhaps voltage or electric current and electricity in each protective device detection corresponding line
Pressure acquires, and specific electrical quantity parameter is determined according to the Protection criteria inside protective device), it then carries out virtual protection and sentences
It is disconnected.
When protective device meets protection entry condition according to the electrical quantity parameter decision detected, such as electrical quantity parameter
More than protection starting setting value, (protection starting setting value is set
It is fixed) when, enabled instruction is sent to two from three tripgear.Certainly, only detect that electrical quantity parameter is more than protection starting setting
The protective device of value can send enabled instruction to two from three tripgear, not detect that electrical quantity parameter is more than that protection is opened
The protective device of dynamic setting value just can not send enabled instruction to two from three tripgear.Wherein, protective device protect and is opened
Dynamic deterministic process belongs to routine techniques, and which is not described herein again.And then, when protective device judgement meets protection act condition
When, such as: protection act condition is met according to the electrical quantity parameter decision detected, further, determines that electrical quantity parameter is super
Overprotection acts setting value (the protection act setting value is set)
When, it is instructed to two from three tripgear sending action.Certainly, the protective device for only meeting protection act condition can be to three
Two tripgear sending actions are taken to instruct, the protective device for being unsatisfactory for protection act condition can not just be sent out to two from three tripgear
Send action command.Wherein, the deterministic process that protective device carries out protection act belongs to routine techniques, and which is not described herein again.In addition,
The starting that first carries out of protective device determines that the process of laggard action judge also belongs to routine techniques, here also no longer specifically
It is bright.
After two from three tripgear receives the enabled instruction of protective device transmission, open two from three tripgear is corresponding
Relay tripping outlet power (specifically relay tripping export positive supply), relay has carried out tripping beam worker
Make.Wherein, it in order to promote the reliability for judging reliability and subsequent protection act, is opened as long as two from three tripgear receives
Dynamic instruction, i.e., when two from three tripgear receives at least one enabled instruction, the tripping with regard to open relay exports positive electricity
Source.
So, after two from three tripgear receives action command, corresponding relay protective scheme differentiation is carried out, is three here
Two logic discriminations are taken, if it is determined that meeting two from three logic discrimination condition, then issue trip command, relay to corresponding relay
It being capable of trip operation immediately.
Fig. 2 is the whole group actuation time schematic diagram of the two from three configuration structure of relay protection system in the present embodiment.Wherein,
The tripping outlet positive supply of the relay of open two from three tripgear and the protection act of protective device judge while carrying out, and save
The time of the tripping outlet positive supply of independent open relay has been saved, namely has saved the actuation time of starting relay.
Fig. 3 is the whole group actuation time of existing whole group actuation time and relay protection and control process provided in this embodiment
Comparison diagram.As can be seen that the logic judgment time of protective device and two from three tripgear substantially cannot from Fig. 1 and Fig. 2
It saves, the time of the independent open tripping outlet positive supply of the only two from three tripgear of omission.Fig. 3 is specified by comparison
The actuation time of saving, about 3-4ms.
Shortening whole group actuation time has many benefits, for example, can quickly cut off event under the premise of guaranteeing reliability
Barrier, avoids failure propagation；Or for complicated apparatus function, differentiated using the action logic that the time saved increases device
Time, to improve the reliability of device action.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.Base of the invention
This thinking is: after M takes N tripgear to receive at least one enabled instruction, just open M take N tripgear corresponding after
The tripping outlet power of electric appliance is carried out tripping and is prepared；After M takes N tripgear to receive action command, carries out M and N protection is taken to patrol
Volume differentiate, meets M and take and issue trip command, control relay tripping to corresponding relay after N relay protective scheme criterion.I.e.
The control process for focusing on relay protection of the invention, do not limit to the relay protection system that the control process is specifically applicable in
And M takes the concrete type of N tripgear.The change that embodiment is carried out without departing from the principles and spirit of the present invention
Change, modify, replacement and variant is still fallen in protection scope of the present invention.
Relay protection and control embodiment of the method:
The present embodiment provides a kind of relay protection and control methods, comprising the following steps:
When protective device meets protection entry condition according to the relevant electrical quantity parameter decision detected, N is taken to jump to M
Brake gear sends enabled instruction；When protective device judgement meets protection act condition, N tripgear sending action is taken to refer to M
It enables；M >=N, M >=2, N >=1；
After M takes N tripgear to receive at least one enabled instruction, open M takes the corresponding relay of N tripgear
Trip outlet power；After M takes N tripgear to receive action command, carries out M and N relay protective scheme is taken to differentiate, meet M and N is taken to protect
Trip command is issued to corresponding relay after logic discrimination condition.
Since above-mentioned relay protection system embodiment explains the relay protection and control method in detail, this implementation
Example just repeats no more.
M takes N tripgear embodiment:
M takes in N tripgear, M >=N, M >=2, N >=1.The protection control process that the M takes N tripgear to realize includes: to work as
After at least one enabled instruction for receiving protective device transmission, open M takes the tripping of the corresponding relay of N tripgear to export
Power supply；After receiving the action command of protective device transmission, carries out M and N relay protective scheme is taken to differentiate, meet M and N relay protective scheme is taken to sentence
Trip command is issued to corresponding relay after other condition.
Therefore, M provided in this embodiment takes the improvement of N tripgear to be internal control process, and does not lie in M and take
The specific structure and M of N tripgear take the relay protective scheme criterion of N tripgear.Since above-mentioned relay protection system is real
It applies example and takes the control process inside N tripgear to be explained in detail the M, the present embodiment just repeats no more.
Claims (6)
1. a kind of relay protection and control method, which comprises the following steps:
When protective device meets protection entry condition according to the relevant electrical quantity parameter decision detected, N tripping dress is taken to M
Set transmission enabled instruction；When protective device judgement meets protection act condition, N tripgear sending action is taken to instruct to M；M
>=N, M >=2, N >=1；
After M takes N tripgear to receive at least one enabled instruction, open M takes the tripping of the corresponding relay of N tripgear
Outlet power；After M takes N tripgear to receive action command, carries out M and N relay protective scheme is taken to differentiate, meet M and take N relay protective scheme
Trip command is issued to corresponding relay after criterion.
2. relay protection and control method according to claim 1, which is characterized in that the M=3, N=2.
3. a kind of relay protection system, including M protective device and at least one M take N tripgear, each protective device and M take N
Tripgear communication connection, M >=N, M >=2, N >=1, which is characterized in that
When protective device meets protection entry condition according to the relevant electrical quantity parameter decision detected, N tripping dress is taken to M
Set transmission enabled instruction；When protective device judgement meets protection act condition, N tripgear sending action is taken to instruct to M；
After M takes N tripgear to receive at least one enabled instruction, open M takes the tripping of the corresponding relay of N tripgear
Outlet power；After M takes N tripgear to receive action command, carries out M and N relay protective scheme is taken to differentiate, meet M and take N relay protective scheme
Trip command is issued to corresponding relay after criterion.
4. relay protection system according to claim 3, which is characterized in that the M=3, N=2.
5. a kind of M takes N tripgear, M >=N, M >=2, N >=1, which is characterized in that the protection control that the M takes N tripgear to realize
Process processed includes:
After receiving at least one enabled instruction of protective device transmission, open M takes the jump of the corresponding relay of N tripgear
Lock outlet power；After receiving the action command of protective device transmission, carries out M and N relay protective scheme is taken to differentiate, meet M and N is taken to protect
Trip command is issued to corresponding relay after logic discrimination condition.
6. M according to claim 5 takes N tripgear, which is characterized in that the M=3, N=2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385490.4A CN110148921B (en) | 2019-05-09 | 2019-05-09 | Relay protection control method and system and M-to-N tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385490.4A CN110148921B (en) | 2019-05-09 | 2019-05-09 | Relay protection control method and system and M-to-N tripping device |
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| Publication Number | Publication Date |
|---|---|
| CN110148921A true CN110148921A (en) | 2019-08-20 |
| CN110148921B CN110148921B (en) | 2021-08-27 |
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ID=67595064
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910385490.4A Active CN110148921B (en) | 2019-05-09 | 2019-05-09 | Relay protection control method and system and M-to-N tripping device |
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Cited By (1)
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| CN110148921B (en) | 2021-08-27 |
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