CN209676006U - A kind of line protection of the adjusting of self-healing on the spot - Google Patents
A kind of line protection of the adjusting of self-healing on the spot Download PDFInfo
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- CN209676006U CN209676006U CN201920471082.6U CN201920471082U CN209676006U CN 209676006 U CN209676006 U CN 209676006U CN 201920471082 U CN201920471082 U CN 201920471082U CN 209676006 U CN209676006 U CN 209676006U
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Abstract
The utility model discloses a kind of line protections of adjusting of self-healing on the spot; it including AC sampling plug-in unit, protection DSP plug-in unit, protection channel card, opens into plug-in unit, output plug-in unit, domain information acquisition process plug-in unit of standing, all plug-in units are interconnected by device backboard；The station domain information acquisition process plug-in unit is responsible for the information collections such as the interior position of the switch and other equipment operation conditions of standing; to complete the functions such as system operation mode identification, channel failure detection; the protection DSP plug-in unit realizes the adjusting of self-healing on the spot of related protection definite value; the utility model passes through the flexible adjusting of definite value, improves the action performance of line protection.
Description
Technical field
The utility model relates to field of relay protection in power, and in particular to a kind of transmission line of electricity of the adjusting of self-healing on the spot
Protective device.
Background technique
Protective relaying device is the first line of defence of electric system, carries and quickly isolates failure, ensures power equipment peace
The vital task of row for the national games.Reasonable protection definite value is the important parameter that protective relaying device is able to correctly work, but power transmission line
Protect the adjusting of definite value and electric network composition, system operation mode etc. in close relations in road.It is continuous with China's network voltage grade
Increase, the development of AC-DC hybrid power grid, power grid architecture becomes increasingly complex, and the method for operation is more changeable, to the whole of protection definite value
Surely great difficulty is brought.
The adaptive setting of protection definite value carries out off-line calculation according to adjusting regulation generally before protective device puts into operation at present, so
It is input in protective device by power supply company professional, will not be changed again in device operational process afterwards.Once system is run
Mode changes or channel is broken down, and original definite value may no longer meet the requirement of sensitivity, quick-action, causes to protect
Protect the decline even incorrect operation of performance.It at this time needs to recalculate adjusting definite value, protected device be had a power failure, by profession
Personnel are by new definite value input protector.With being continuously increased for protective device quantity, this fixed value adjusting mode not only can
A large amount of manpower, time are consumed, also will cause the decline of power supply reliability.
Utility model content
The purpose of this utility model is to provide a kind of line protection of adjusting of self-healing on the spot, solve to protect at present
Shield definite value the problem of cannot adaptively adjusting with running situation, protective value is caused to decline, improve operation of power networks efficiency and
Power supply reliability.
For this purpose, the utility model uses following technical scheme:
A kind of line protection of the adjusting of self-healing on the spot, including AC sampling plug-in unit, protection DSP plug-in unit, protection
Channel card is opened into plug-in unit, outputs plug-in unit, domain information acquisition process plug-in unit of standing, and all plug-in units are interconnected by device backboard.
Optionally, the station domain information acquisition process plug-in unit is by photoisolator, central processing unit, optical-fibre communications mouth and outer
If composition.
Optionally, the station domain information acquisition process plug-in unit is responsible for the position of the switch and other equipment operation conditions in acquisition station
Information.
Optionally, the station domain information acquisition process plug-in unit completes system operation mode identification, channel failure detection, and will
Processing result is exported to device backboard.
Optionally, the protection DSP plug-in unit realizes protection definite value just from device backboard acquisition station domain information processing result
Ground self-healing adjusting, and complete relay protective scheme calculating, tripping outlet function.
Compared with prior art, the utility model embodiment has the advantages that
The utility model increases station domain information acquisition process plug-in unit, is run by the position of the switch in acquisition station and other equipment
Situation is realized the adjusting of self-healing on the spot of protection definite value, is reduced artificial to complete system operation mode identification, channel failure detection
The number of definite value and the frequency of power cut of protective device are modified, operation of power networks efficiency and power supply reliability are improved.The utility model without
The card i/f and layout that existing line protection need to be changed, the station domain information acquisition process plug-in unit newly increased can be placed
In in any empty slot of protective device, be conducive to the upgrading of existing protective device.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the utility model one kind line protection schematic diagram that self-healing is adjusted on the spot.
Fig. 2 is the application scenarios schematic diagram 1 of the utility model.
Fig. 3 is the application scenarios schematic diagram 2 of the utility model.
Fig. 4 is another embodiment of the utility model.
It illustrates:
Device backboard 10, protection DSP plug-in unit 12, protection channel card 13, is opened into plug-in unit 14, is opened AC sampling plug-in unit 11
Plug-in unit 15, domain information acquisition process of standing plug-in unit 16 out.
Specific embodiment
It, below will knot to enable the purpose of utility model, feature, advantage of the utility model more obvious and understandable
The attached drawing in the utility model embodiment is closed, the technical scheme in the utility model embodiment is clearly and completely described,
Obviously, the embodiments described below are only the utility model a part of the embodiment, and not all embodiment.Based on this reality
It is obtained by those of ordinary skill in the art without making creative efforts all other with the embodiment in novel
Embodiment is fallen within the protection scope of the utility model.
As shown in Figures 1 to 4, a kind of line protection of the adjusting of self-healing on the spot, including AC sampling plug-in unit 11,
Protection DSP plug-in unit 12, is opened into plug-in unit 14, outputs plug-in unit 15, domain information acquisition process of standing plug-in unit 16, institute protection channel card 13
There is plug-in unit to interconnect by device backboard 10.
The station domain information acquisition process plug-in unit 16 is by photoisolator, central processing unit, optical-fibre communications mouth and peripheral hardware group
At.
The station domain information acquisition process plug-in unit 16 is responsible for the stand interior position of the switch and other equipment operation condition information collections.
The station domain information acquisition process plug-in unit 16 completes system operation mode identification, channel failure detection function, and will
Processing result is exported to device backboard 10.
The protection DSP plug-in unit 12 realizes related protection definite value from 10 acquisition station domain information processing result of device backboard
Self-healing is adjusted on the spot, and completes relay protective scheme calculating, tripping outlet function.
As shown in Fig. 2, the line protection of self-healing adjusting is in addition to acquiring the voltage of this route, electric current, opening on the spot
Outside off position, domain information acquisition process of standing plug-in unit 16 also acquires the position of the switch of another loop line, judges whether another loop line puts into operation；
Protect DSP plug-in unit 12 according to station domain information acquisition process plug-in unit 16 differentiation result adjust automatically definite value " zero-utility theory ",
Improve the accuracy of ground distance protection impedance computation.
As shown in figure 3, the line protection of self-healing adjusting is in addition to acquiring the voltage of this route, electric current, opening on the spot
Outside off position, domain information acquisition process of standing plug-in unit 16 also acquires communication interface arrangement operating status, judges that communication interface arrangement is
No failure or exception；After protecting differentiation result adjust automatically of the DSP plug-in unit 12 according to station domain information acquisition process plug-in unit 16
The actuation time definite value of standby protection improves back-up protection quick-action when main protection loses.
A kind of line protection of adjusting of self-healing on the spot provided by the utility model, is adopted by increasing station domain information
Collection processing plug-in unit 16 realizes the adjusting of self-healing on the spot of protection definite value, improves the action performance of protective device, improve power grid
Operational efficiency and power supply reliability.
In conclusion the utility model increases station domain information acquisition process plug-in unit 16, by the position of the switch in acquisition station and
Other equipment operating condition realizes that the self-healing on the spot of protection definite value is whole to complete system operation mode identification, channel failure detection
It is fixed, the number of manual amendment's definite value and the frequency of power cut of protective device are reduced, operation of power networks efficiency and power supply reliability are improved.This
Utility model is not necessarily to change the card i/f and layout of existing line protection, the station domain information acquisition process newly increased
Plug-in unit 16 can be placed in any empty slot of protective device, be conducive to the upgrading of existing protective device.
The above, above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model is described in detail according to previous embodiment, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (2)
1. a kind of line protection of the adjusting of self-healing on the spot, which is characterized in that including AC sampling plug-in unit, protection DSP
Plug-in unit, is opened into plug-in unit, outputs plug-in unit, domain information acquisition process plug-in unit of standing protection channel card, and all plug-in units pass through device backboard
It interconnects；
The station domain information acquisition process plug-in unit is made of photoisolator, central processing unit, optical-fibre communications mouth and peripheral hardware；
The station domain information acquisition process plug-in unit is for the position of the switch and other equipment operation conditions in acquisition station；
The station domain information acquisition process plug-in unit is also used to complete system operation mode identification, channel failure detection, and will processing
As a result it exports to device backboard.
2. the line protection that self-healing is adjusted on the spot as described in claim 1, it is characterised in that: the protection DSP
Plug-in unit realizes the adjusting of self-healing on the spot of protection definite value according to the processing result, and completes relay protective scheme calculating, tripping outlet function
Energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920471082.6U CN209676006U (en) | 2019-04-09 | 2019-04-09 | A kind of line protection of the adjusting of self-healing on the spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920471082.6U CN209676006U (en) | 2019-04-09 | 2019-04-09 | A kind of line protection of the adjusting of self-healing on the spot |
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| Publication Number | Publication Date |
|---|---|
| CN209676006U true CN209676006U (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920471082.6U Active CN209676006U (en) | 2019-04-09 | 2019-04-09 | A kind of line protection of the adjusting of self-healing on the spot |
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| CN (1) | CN209676006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116722512A (en) * | 2023-06-26 | 2023-09-08 | 国网安徽省电力有限公司淮北供电公司 | Intelligent management and setting verification system based on main-distribution cooperation distribution network protection |
-
2019
- 2019-04-09 CN CN201920471082.6U patent/CN209676006U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116722512A (en) * | 2023-06-26 | 2023-09-08 | 国网安徽省电力有限公司淮北供电公司 | Intelligent management and setting verification system based on main-distribution cooperation distribution network protection |
| CN116722512B (en) * | 2023-06-26 | 2024-01-19 | 国网安徽省电力有限公司淮北供电公司 | Intelligent management and setting verification system based on main-distribution cooperation distribution network protection |
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