CN205565711U - Self -adaptation fiber channel's line protection system - Google Patents
Self -adaptation fiber channel's line protection system Download PDFInfo
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- CN205565711U CN205565711U CN201620350289.4U CN201620350289U CN205565711U CN 205565711 U CN205565711 U CN 205565711U CN 201620350289 U CN201620350289 U CN 201620350289U CN 205565711 U CN205565711 U CN 205565711U
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Abstract
The utility model discloses a self -adaptation fiber channel's line protection system, two sets of circuit differential protection of system's operation, according to the quality of fiber channel communication own, the automation realizes the stability of the combinatory logic of two sets of differential protection's tripping operation, the operation of improvement system. The utility model discloses a two -way light receiving and dispatching technique of single fiber has realized the point -to -point mode of single fiber, and this mode is simple and directly perceived, and the physical significance is clear and definite, more traditional line protection mode, the utility model discloses a two protection principles have increased the reliability that the device moved, and the device export can be adjusted according to the real -time condition of fiber channel communication, have consequently reduced because of the unable normally probability of work of circuit differential protection appears in fiber channel communication unusually, have improved power grid operation's stability.
Description
Technical field
This utility model relates to the line protection system of a kind of adaptive optic fiber passage.
Background technology
Along with socioeconomic fast development, electric network composition is increasingly sophisticated, user to the reliability of grid power transmission,
Stability is had higher requirement.Electric power system fault is relatively big to the impact of electrical network, excises the most as soon as possible
Fault can improve the stability of operation of power networks.Optical differential line protective devices can meet circuit in electrical network and run
Demand, so device gets a lot of applications in power system.
The transmitting-receiving of the optical differential line protective devices data of existing design uses two optical fiber, wherein a light
Fine being responsible for sends data, and another optical fiber is responsible for receiving data, and system runs a set of line differential protection.
If the reliability of line protection system to be improved, user needs to increase a set of line protective devices.When two sets
Having in line protective devices and a set of meet operation condition, device trips, and excises fault.Often overlapping route protection
In device, as long as optical-fibre channel is abnormal, the abnormal also corresponding circuit of locking of line protective devices report optical-fibre channel
Differential protection.If circuit is only configured with a set of optical differential line protective devices, now circuit is in indifference
The situation of dynamic protection, now breaks down on circuit, and fault is excised mainly by the back-up protection of band time delay, this
It is unfavorable for the operation of electrical network and affects the stability of operation of power networks.
Utility model content
For the problems referred to above, this utility model provides the line protection system of a kind of adaptive optic fiber passage, is
System runs two set line differential protections, according to the quality of optical-fibre channel communication own, is automatically obtained two sets differential
The combination logic of the tripping operation of protection, improves the stability that system is run.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, this utility model is by the following technical programs
Realize:
The line protection system of a kind of adaptive optic fiber passage, including being arranged in the transformer station of T-type line M side
M side line line protection device, the N side line line protection device being arranged in the transformer station of T-type line N side, set
Put the H side line line protection device in the transformer station of T-type line H side, it is characterised in that:
The differential 1 transmitting-receiving mouth 1 of M side line line protection device and the differential 1 transmitting-receiving mouth 1 of N side line line protection device
It is connected by the first transmitting-receiving optical fiber, differential 1 transmitting-receiving mouth 2 and the H side route protection dress of N side line line protection device
The differential 1 transmitting-receiving mouth 2 put is connected by the second transmitting-receiving optical fiber, the differential 1 transmitting-receiving mouth of M side line line protection device
2 are connected by the 3rd transmitting-receiving optical fiber with the differential 1 transmitting-receiving mouth 1 of H side line line protection device；
The differential 2 transmitting-receiving mouths 1 of M side line line protection device and the differential 2 transmitting-receiving mouths 1 of N side line line protection device
It is connected by the 4th transmitting-receiving optical fiber, differential 2 transmitting-receiving mouths 2 and the H side route protection dress of N side line line protection device
The differential 2 transmitting-receiving mouths 2 put are connected by the 5th transmitting-receiving optical fiber, the differential 2 transmitting-receiving mouths of M side line line protection device
2 are connected by the 6th transmitting-receiving optical fiber with the differential 2 transmitting-receiving mouths 1 of H side line line protection device；
First transmitting-receiving optical fiber, the second transmitting-receiving optical fiber, the 3rd transmitting-receiving optical fiber, the 4th transmitting-receiving optical fiber, the 5th transmitting-receiving
Optical fiber and the 6th transmitting-receiving optical fiber are the simple optical fiber of transmitted in both directions, the first transmitting-receiving optical fiber, the second transmitting-receiving optical fiber
With the 3rd differential 1 protection network of transmitting-receiving optical fiber composition circuit optical fiber, the 4th transmitting-receiving optical fiber, the 5th transmitting-receiving optical fiber
With the 6th differential 2 protection networks of transmitting-receiving optical fiber composition circuit optical fiber.
Wherein, the differential 1 protection network of circuit optical fiber and the differential 2 protection networks of circuit optical fiber can be that protection is former
Manage identical circuit optical fiber differential protection network, it would however also be possible to employ different protection philosophies.
The beneficial effects of the utility model are:
This utility model uses single fiber bidirectional light receiving and transmitting technology, it is achieved that single fiber ad hoc mode, this mould
Formula is simple and directly perceived, explicit physical meaning；More traditional route protection pattern, this utility model uses double guarantor
Protecting principle, add the reliability of device action, device outlet can be according to the real-time condition of optical-fibre channel communication
It is adjusted, therefore decreases because optical-fibre channel communication abnormality occurs what line differential protection cannot normally work
Probability, improves the stability of operation of power networks.
Accompanying drawing explanation
Fig. 1 is the structural representation of T-type line；
Fig. 2 is the structural representation of the line protection system of this utility model a kind of adaptive optic fiber passage；
Fig. 3 is the structural representation of adaptive optic fiber differential line protection device.
Detailed description of the invention
Make further to retouch in detail to technical solutions of the utility model with specific embodiment below in conjunction with the accompanying drawings
State, so that those skilled in the art can be better understood from this utility model and can be practiced, but lifted
Embodiment is not as to restriction of the present utility model.
The structure chart of T-type line as it is shown in figure 1, T-type line three end is the outlet of transformer station, respectively M side
Transformer station, N side transformer station and H side transformer station, connected by T-type line between three.
As in figure 2 it is shown, the line protection system of a kind of adaptive optic fiber passage, including being arranged on T-type line M
M side line line protection device in the transformer station of side, the N side line road being arranged in the transformer station of T-type line N side are protected
Protection unit, the H side line line protection device being arranged in the transformer station of T-type line H side, each line protective devices
Between annexation as follows:
The differential 1 transmitting-receiving mouth 1 of M side line line protection device and the differential 1 transmitting-receiving mouth 1 of N side line line protection device
It is connected by the first transmitting-receiving optical fiber, differential 1 transmitting-receiving mouth 2 and the H side route protection dress of N side line line protection device
The differential 1 transmitting-receiving mouth 2 put is connected by the second transmitting-receiving optical fiber, the differential 1 transmitting-receiving mouth of M side line line protection device
2 are connected by the 3rd transmitting-receiving optical fiber with the differential 1 transmitting-receiving mouth 1 of H side line line protection device；
The differential 2 transmitting-receiving mouths 1 of M side line line protection device and the differential 2 transmitting-receiving mouths 1 of N side line line protection device
It is connected by the 4th transmitting-receiving optical fiber, differential 2 transmitting-receiving mouths 2 and the H side route protection dress of N side line line protection device
The differential 2 transmitting-receiving mouths 2 put are connected by the 5th transmitting-receiving optical fiber, the differential 2 transmitting-receiving mouths of M side line line protection device
2 are connected by the 6th transmitting-receiving optical fiber with the differential 2 transmitting-receiving mouths 1 of H side line line protection device；
First transmitting-receiving optical fiber, the second transmitting-receiving optical fiber, the 3rd transmitting-receiving optical fiber, the 4th transmitting-receiving optical fiber, the 5th transmitting-receiving
Optical fiber and the 6th transmitting-receiving optical fiber are the simple optical fiber of transmitted in both directions, the first transmitting-receiving optical fiber, the second transmitting-receiving optical fiber
With the 3rd differential 1 protection network of transmitting-receiving optical fiber composition circuit optical fiber, the 4th transmitting-receiving optical fiber, the 5th transmitting-receiving optical fiber
With the 6th differential 2 protection networks of transmitting-receiving optical fiber composition circuit optical fiber.
This utility model uses single fiber bidirectional light receiving and transmitting, and the data exchange between i.e. two stations is only with a light
Fibre can realize, use 3 optical fiber just can realize M, N and H side line protective devices data exchange
And each line protective devices have only used two optical-fibre communications mouths.
Wherein, the differential 1 protection network of circuit optical fiber and the differential 2 protection networks of circuit optical fiber can be that protection is former
Manage identical circuit optical fiber differential protection network, it is preferred that use different protection philosophies, it is achieved dual
The requirement of protection runs, and i.e. uses the two set protection same circuit of network protection or elements of different principle.Such as,
The differential 1 protection network of circuit optical fiber is the circuit optical fiber differential protection network using biased differential protection principle,
And the differential 2 protection networks of circuit optical fiber are the differential guarantors of circuit optical fiber using Principle of Current Differential Protection Based on Sampled Values
Protecting wire net network.
The structure chart of adaptive optic fiber differential line protection device is as it is shown on figure 3, the logic of system protection outlet
As follows:
1) when the differential 1 protection network of circuit optical fiber and the differential 2 protection network communications of circuit optical fiber are all normal:
When two set T-type line differential protections all start, the startup level conducting of device, releases the tripping operation of exit relay
Locking；When two set T-type line differential protection all actions, protection device just sends protection act order, phase
The exit relay action answered, protection exit.
2) when the differential 1 protection network communication of circuit optical fiber is normal and the differential 2 protection network communications of circuit optical fiber are different
The differential protection concurrent alarm signal of Chang Shi: locking differential 2, now device is automatically with the difference of differential 1 network
Dynamic protection is main protection.When the differential protection of differential 1 network starts, the startup level conducting of device, releases
The tripping operation locking of exit relay；During the differential protection action of differential 1 network, just send protection act order,
Corresponding exit relay action, protection exit.
3) just network communications are being protected when the differential 1 protection network communication abnormality of circuit optical fiber and circuit optical fiber differential 2
The differential protection concurrent alarm signal of Chang Shi: locking differential 1, now device is automatically with the difference of differential 2 networks
Dynamic protection is main protection.When the differential protection of differential 1 network starts, the startup level conducting of device, releases
The tripping operation locking of exit relay；During the differential protection action of differential 1 network, just send protection act order,
Corresponding exit relay action, protection exit.
4) when the differential 1 protection network of circuit optical fiber and the differential 2 protection network communications of circuit optical fiber are all abnormal:
The concurrent block signal of differential protection of locking simultaneously differential 1 and differential 2 and warning signal.
From the tripping operation analysis of devices above it follows that two differential network communications have one normal, adaptive
The line protective devices answering optical-fibre channel can normally work, and this greatly reduces Network Abnormal to route protection
The impact of the operation of device, improves the reliability of line protective devices.
These are only preferred embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,
Every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion, or
Person is directly or indirectly used in the technical field that other are relevant, is the most in like manner included in patent of the present utility model and protects
In the range of protecting.
Claims (4)
1. a line protection system for adaptive optic fiber passage, including being arranged in the transformer station of T-type line M side
M side line line protection device, the N side line line protection device being arranged in the transformer station of T-type line N side, set
Put the H side line line protection device in the transformer station of T-type line H side, it is characterised in that:
The differential 1 transmitting-receiving mouth 1 of M side line line protection device and the differential 1 transmitting-receiving mouth 1 of N side line line protection device
Being connected by the first transmitting-receiving optical fiber, the differential 1 transmitting-receiving mouth 2 of N side line line protection device is protected with H side line road
The differential 1 transmitting-receiving mouth 2 of protection unit is connected by the second transmitting-receiving optical fiber, M side line line protection device differential
1 transmitting-receiving mouth 2 is connected by the 3rd transmitting-receiving optical fiber with the differential 1 transmitting-receiving mouth 1 of H side line line protection device；
The differential 2 transmitting-receiving mouths 1 of M side line line protection device and the differential 2 transmitting-receiving mouths 1 of N side line line protection device
Being connected by the 4th transmitting-receiving optical fiber, the differential 2 transmitting-receiving mouths 2 of N side line line protection device are protected with H side line road
The differential 2 transmitting-receiving mouths 2 of protection unit are connected by the 5th transmitting-receiving optical fiber, M side line line protection device differential
2 transmitting-receiving mouths 2 are connected by the 6th transmitting-receiving optical fiber with the differential 2 transmitting-receiving mouths 1 of H side line line protection device；
First transmitting-receiving optical fiber, the second transmitting-receiving optical fiber, the 3rd transmitting-receiving optical fiber, the 4th transmitting-receiving optical fiber, the 5th transmitting-receiving light
Fine and the 6th transmitting-receiving optical fiber is the simple optical fiber of transmitted in both directions, the first transmitting-receiving optical fiber, the second transmitting-receiving optical fiber
With the 3rd differential 1 protection network of transmitting-receiving optical fiber composition circuit optical fiber, the 4th transmitting-receiving optical fiber, the 5th transmitting-receiving light
Fine and the 6th transmitting-receiving optical fiber composition circuit optical fiber differential 2 protects networks.
The line protection system of a kind of adaptive optic fiber passage the most according to claim 1, it is characterised in that
The differential 1 protection network of circuit optical fiber and the differential 2 protection networks of circuit optical fiber are the lines that protection philosophy differs
Road optical fiber differential protective network.
The line protection system of a kind of adaptive optic fiber passage the most according to claim 1, it is characterised in that
The differential 1 protection network of circuit optical fiber is the circuit optical fiber differential protection net using biased differential protection principle
Network.
The line protection system of a kind of adaptive optic fiber passage the most according to claim 3, it is characterised in that
The differential 2 protection networks of circuit optical fiber are the differential guarantors of circuit optical fiber using Principle of Current Differential Protection Based on Sampled Values
Protecting wire net network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620350289.4U CN205565711U (en) | 2016-04-22 | 2016-04-22 | Self -adaptation fiber channel's line protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620350289.4U CN205565711U (en) | 2016-04-22 | 2016-04-22 | Self -adaptation fiber channel's line protection system |
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| Publication Number | Publication Date |
|---|---|
| CN205565711U true CN205565711U (en) | 2016-09-07 |
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ID=56806402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620350289.4U Active CN205565711U (en) | 2016-04-22 | 2016-04-22 | Self -adaptation fiber channel's line protection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013852A (en) * | 2021-02-26 | 2021-06-22 | 许继集团有限公司 | Line protection optical fiber channel transmission data processing method and device |
-
2016
- 2016-04-22 CN CN201620350289.4U patent/CN205565711U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013852A (en) * | 2021-02-26 | 2021-06-22 | 许继集团有限公司 | Line protection optical fiber channel transmission data processing method and device |
| CN113013852B (en) * | 2021-02-26 | 2022-10-04 | 许继集团有限公司 | Line protection optical fiber channel transmission data processing method and device |
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