CN106848996A - A kind of protection exit method and device suitable for dual-cpu structure - Google Patents
A kind of protection exit method and device suitable for dual-cpu structure Download PDFInfo
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- CN106848996A CN106848996A CN201710161352.9A CN201710161352A CN106848996A CN 106848996 A CN106848996 A CN 106848996A CN 201710161352 A CN201710161352 A CN 201710161352A CN 106848996 A CN106848996 A CN 106848996A
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- cpu
- criterion
- protection
- dual
- protection exit
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Classifications
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- 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 invention provides a kind of protection exit method and device suitable for dual-cpu structure, one of CPU receives the start-up criterion of another CPU, and the start-up criterion of start-up criterion, operating criterion and the CPU for being received as CPU is while just outlet tripping operation when meeting.The present invention can be good at preventing the malfunction that protection device hardware fault causes, and, implementation method is simple, reliable, it is possible to increase the reliability of G-T protective.
Description
Technical field
The invention belongs to technical field of power systems, and in particular to a kind of protection exit method suitable for dual-cpu structure
And device.
Background technology
Second power equipment is the auxiliary being supervised primary equipment in power system, measured, controlled, protected, adjusted
Equipment.Relay protection and automatics in secondary device, the operation conditions for monitoring primary system, rapid abnormal reaction and
Accident, then acts on breaker, is jumped by exit circuit controlling switch and closed, so as to control the switching of equipment successively, is protected
Shield control.Second protection directly determines the ruuning situation of various exchange power plant, DC engineering etc. to a certain extent, particularly
Improve power plant unit, the sensitivity of DC converter transformer station high-voltage side bus, selectivity and reliability significant.Outlet control
Circuit processed must be reliable and stable, safe, prevents " tripping " and " malfunction ".Current power system, visual plant is except master
Corresponding back-up protection is all considered outside protection equipment, all the probability of " tripping " is little.
For protection device, the condition for exporting tripping operation must under conditions of entry condition satisfaction, be gone out by protection equipment
Existing failure, when meeting action logic condition, can just export tripping operation.Current second protection is in the majority using duplicate system retrofit, and protection is missed
Dynamic probability increases, and the imperfection of principle also results in the increase of malfunction probability, it is therefore desirable to improve protection exit wavy trajectory, adopts
With more reliable principle, farthest prevent the malfunction for protecting hardware fault to cause.
The content of the invention
It is an object of the invention to provide a kind of protection exit method and device suitable for dual-cpu structure, it is used to solve
The protection malfunction rate that causes of hardware fault problem high.
In order to solve the above technical problems, the technical scheme is that：
The invention provides a kind of protection exit method suitable for dual-cpu structure, one of CPU receives another
The start-up criterion of CPU, the start-up criterion of start-up criterion, operating criterion and the CPU for being received as CPU when meeting while just export
Tripping operation.
Further, the start-up criterion of the start-up criterion of the CPU, operating criterion and the CPU for being received is separate.
The present invention also provides a kind of protection exit device suitable for dual-cpu structure, including two CPU, one of CPU
Start-up criterion for receiving another CPU, the start-up criterion of start-up criterion, operating criterion and the CPU for being received as CPU is same
When just outlet tripping operation when meeting.
Further, the start-up criterion of the start-up criterion of the CPU, operating criterion and the CPU for being received is separate.
Beneficial effects of the present invention：
When protection device uses dual-cpu structure, one of CPU receives the start-up criterion of another CPU, when CPU's
The start-up criterion of start-up criterion, operating criterion and the CPU for being received is while just outlet tripping operation when meeting.Drive the CPU mono- of outlet
As to have operating criterion and receive another piece of CPU of CPU start-up criterions.The present invention can as far as possible prevent protection device hardware
The malfunction that failure causes, can improve protection exit wavy trajectory, using more reliable principle, farthest prevent protection hard
The malfunction that part failure causes.And, implementation method of the present invention is simple, reliable, it is possible to increase the reliability of G-T protective.
Brief description of the drawings
Fig. 1 is protection device structural representation；
Fig. 2 is AND gate outlet method logical schematic.
Specific embodiment
To make the purpose of the present invention, advantage and technical scheme become more apparent, below in conjunction with the accompanying drawings and embodiment, to this
Invention is described in further detail.
Protection exit embodiment of the method suitable for dual-cpu structure of the invention：
As shown in figure 1, the direct current of outside input, exchange input quantity and open into quantity of state by data acquisition module simultaneously pass
A CPU and the 2nd CPU is defeated by, there is internal communication to carry out data exchange between a CPU and the 2nd CPU.First CPU and second
The data source of the criterion of CPU is same source, but it is independent, middle to start logic criterion inside a CPU and the 2nd CPU
Data are independent mutually；Operating criterion is also independent in a CPU (can also be in the 2nd CPU) and start-up criterion logic judgment,
Middle data do not exist crossover phenomenon.Relay protective scheme after software logic judgement by exporting tripping operation.
As shown in Fig. 2 being illustrated so that relay protective scheme outlet judges to be carried out in the 2nd CPU as an example.First guarantor of the first CPU
Shield start-up criterion is transferred in the 2nd CPU by internal communication, while a CPU sends tripping relay startup power supply.For
For two CPU, outlet trip condition includes first start-up criterion of the 2nd CPU, the first protection act criterion, and a CPU
First protection start-up criterion, i.e., only simultaneously meet these three conditions, then AND gate sends a mouthful trip command.And, this three
Individual outlet trip condition is separate.
When outlet logic judges to be carried out in a CPU, by the first protection start-up criterion of the 2nd CPU by internal communication
It is transferred in a CPU, while the 2nd CPU sends tripping relay startup power supply.For a CPU, tripping strip is exported
Part includes the first protection start-up criterion of first start-up criterion of a CPU, the first protection act criterion, and the 2nd CPU, i.e.,
Only meet these three conditions simultaneously, then AND gate sends a mouthful trip command.And, these three outlet trip conditions are mutually only
It is vertical.
Protection exit device embodiment suitable for dual-cpu structure of the invention：
The present invention also provides a kind of protection exit device suitable for dual-cpu structure, including two CPU, one of CPU
Start-up criterion for receiving another CPU, the start-up criterion of start-up criterion, operating criterion and the CPU for being received as CPU is same
When just outlet tripping operation when meeting.The core of the device is to provide a kind of protection exit method suitable for dual-cpu structure, due to
The above method is described in detail, therefore the device has been repeated no more.
Claims (4)
1. a kind of protection exit method suitable for dual-cpu structure, it is characterised in that one of CPU receives another CPU's
Start-up criterion, the start-up criterion of start-up criterion, operating criterion and the CPU for being received as CPU is while just outlet tripping operation when meeting.
2. the protection exit method suitable for dual-cpu structure according to claim 1, it is characterised in that the CPU's opens
The start-up criterion of dynamic criterion, operating criterion and the CPU for being received is separate.
3. a kind of protection exit device suitable for dual-cpu structure, including two CPU, it is characterised in that one of CPU is used
In the start-up criterion for receiving another CPU, the start-up criterion of start-up criterion, operating criterion and the CPU for being received as CPU is simultaneously
Just outlet tripping operation when meeting.
4. the protection exit device suitable for dual-cpu structure according to claim 3, it is characterised in that the CPU's opens
The start-up criterion of dynamic criterion, operating criterion and the CPU for being received is separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710161352.9A CN106848996B (en) | 2017-03-17 | 2017-03-17 | Outlet protection method and device suitable for double-CPU structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710161352.9A CN106848996B (en) | 2017-03-17 | 2017-03-17 | Outlet protection method and device suitable for double-CPU structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106848996A true CN106848996A (en) | 2017-06-13 |
| CN106848996B CN106848996B (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710161352.9A Active CN106848996B (en) | 2017-03-17 | 2017-03-17 | Outlet protection method and device suitable for double-CPU structure |
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| Country | Link |
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| CN (1) | CN106848996B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713647A (en) * | 2019-02-22 | 2019-05-03 | 南京电研电力自动化股份有限公司 | A kind of busbar protective device redundancy design method |
| CN112072620A (en) * | 2020-08-31 | 2020-12-11 | 许继集团有限公司 | Relay protection device and relay protection export method thereof |
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| CN202121298U (en) * | 2011-07-19 | 2012-01-18 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Microcomputer protective system of converter transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713647A (en) * | 2019-02-22 | 2019-05-03 | 南京电研电力自动化股份有限公司 | A kind of busbar protective device redundancy design method |
| CN112072620A (en) * | 2020-08-31 | 2020-12-11 | 许继集团有限公司 | Relay protection device and relay protection export method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106848996B (en) | 2020-02-21 |
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