CN103683231B - A kind of power distribution network switchyard with intelligent switchboard - Google Patents
A kind of power distribution network switchyard with intelligent switchboard Download PDFInfo
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- CN103683231B CN103683231B CN201310722933.7A CN201310722933A CN103683231B CN 103683231 B CN103683231 B CN 103683231B CN 201310722933 A CN201310722933 A CN 201310722933A CN 103683231 B CN103683231 B CN 103683231B
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- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims abstract description 12
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 4
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- 238000002955 isolation Methods 0.000 description 3
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Abstract
The invention discloses a kind of power distribution network switchyard with intelligent switchboard, described power distribution network switchyard includes: intelligent switchboard, and described intelligent switchboard includes: for gathering the harvester of each supply line voltage and electric current；Determine the faulty line that there is singlephase earth fault according to described voltage and electric current, described faulty line is isolated and sent the processing means of fault message of described faulty line；For showing the first display device of each supply line status data；Host computer, described host computer includes: for obtaining the advance data harvester of described fault message；For storing the storage device of described fault message；Communication line, described communication line is mutual for the information between described intelligent switchboard and described host computer.Power distribution network switchyard of the present invention can quickly detect and isolate single-line ground fault.
Description
Technical field
The present invention relates to distribution line failure detection device technique field, more particularly, it relates to a kind of power distribution network switchyard with intelligent switchboard.
Background technology
This part is it is intended that the embodiments of the present invention stated in claims provide background or context.Description herein can include the concept that can probe into, but is not necessarily the concept having contemplated that before or having probed into.Therefore, unless it is pointed out here that, it not otherwise prior art for the description and claims of this application in the content described in this part, and not because being included in this part just recognize it is prior art.
The safe operation of power distribution network is directly connected to the interests of power consumer.Relative to power transmission network, distribution net work structure, running environment and equipment service condition situation are complicated, and these factors cause the fault rate that power distribution network is higher.Wherein, singlephase earth fault is modal distribution network failure.
But, along with the continuous increase of current supply load, the branch of distribution network line is the most increasing, and line construction also becomes increasingly complex.Distribution network line is if it occur that fault, and the method frequently by artificial line walking is fixed a breakdown, and it is extremely difficult to search concrete trouble point, and the reliability of power supply cannot be protected.Therefore, current problem demanding prompt solution during the quickly detection of singlephase earth fault circuit how is realized.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of power distribution network switchyard with intelligent switchboard, and described power distribution network switchyard can quickly detect single-line ground fault.
For achieving the above object, the present invention provides following technical scheme:
A kind of power distribution network switchyard with intelligent switchboard, it is characterised in that including:
Intelligent switchboard, described intelligent switchboard includes: for gathering the harvester of each supply line voltage and electric current；Determine the faulty line that there is singlephase earth fault according to described voltage and electric current, described faulty line is isolated and sent the processing means of fault message of described faulty line；For showing the first display device of each supply line status data；
Host computer, described host computer includes: for obtaining the advance data harvester of described fault message；For storing the storage device of described fault message；
Communication line, described communication line is mutual for the information between described intelligent switchboard and described host computer.
Preferably, in above-mentioned power distribution network switchyard, described processing means is line-failure indicator.
Preferably, in above-mentioned power distribution network switchyard, described communication line is GPRS communication line or optical-fibre communications.
Preferably, in above-mentioned power distribution network switchyard, described host computer also includes:
Second display device, described second display device is for showing that current failure information and the data when query history fault message show.
Preferably, in above-mentioned power distribution network switchyard, described each supply line is connected with described intelligent switchboard by reclosing device, and described faulty line is isolated by the reclosing device tripping operation controlling described faulty line corresponding by described processing means.
Preferably, in above-mentioned power distribution network switchyard, described power distribution network switchyard is opened and is also included:
The alarm device being connected with described intelligent switchboard or be connected with described host computer, described alarm device sends the alarm signal of correspondence according to described fault message.
Preferably, in above-mentioned power distribution network switchyard, described alarm device is the alarm that can send audible ringing signal.
Preferably, in above-mentioned power distribution network switchyard, described alarm device is the alarm that can send visual alarm.
From technique scheme it can be seen that power distribution network switchyard provided by the present invention is capable of the automatic detection of faulty line by described intelligent switchboard, it is possible to quickly detection single-line ground fault；Simultaneously, it is achieved the automatic decision of distribution line failure and isolation in time, reduce power failure range, improve power supply reliability；And, historical failure information searching function can be realized by reading the fault message of described storage device storage.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of power distribution network switchyard that Fig. 1 provides for the existing embodiment of the present invention.
Detailed description of the invention
The most as described in the background section, along with the continuous increase of current supply load, the branch of distribution network line is the most increasing, and line construction also becomes increasingly complex.Distribution network line is if it occur that fault, and the method frequently by artificial line walking is fixed a breakdown, and it is extremely difficult to search concrete trouble point, and the reliability of power supply cannot be protected.Therefore, current problem demanding prompt solution during the quickly detection of singlephase earth fault circuit how is realized.
Inventor studies discovery, can realize the automatic detection of faulty line by having the intelligent switchboard of fault detect,
Based on the studies above, the invention provides a kind of power distribution network switchyard with intelligent switchboard, this power distribution network switchyard includes:
Intelligent switchboard, described intelligent switchboard includes: for gathering the harvester of each supply line voltage and electric current；Determine the faulty line that there is singlephase earth fault according to described voltage and electric current, described faulty line is isolated and sent the processing means of fault message of described faulty line；For showing the first display device of each supply line status data；
Host computer, described host computer includes: for obtaining the advance data harvester of described fault message；For storing the storage device of described fault message；
Communication line, described communication line is mutual for the information between described intelligent switchboard and described host computer.
Power distribution network switchyard of the present invention is capable of the automatic detection of faulty line by described intelligent switchboard, it is possible to quickly detection single-line ground fault；Simultaneously, it is achieved the automatic decision of distribution line failure and isolation in time, reduce power failure range, improve power supply reliability；And, historical failure information searching function can be realized by reading the fault message of described storage device storage.
It is above the core concept of the application, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but the present invention can also use other to be different from alternate manner described here to be implemented, those skilled in the art can do similar popularization in the case of intension of the present invention, and therefore the present invention is not limited by following public specific embodiment.
Secondly, the present invention combines schematic diagram and is described in detail, when describing the embodiment of the present invention in detail; for ease of explanation; representing that the schematic diagram of apparatus structure can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.Additionally, length, width and the three-dimensional space of height should be comprised in actual fabrication.
Based on above-mentioned thought, the embodiment of the present application provides a kind of power distribution network switchyard with intelligent switchboard, and with reference to Fig. 1, described power distribution network switchyard includes: intelligent switchboard 1, communication line 2 and host computer 3.Wherein, described communication line 2 is mutual for the information between described intelligent switchboard 1 and described host computer 3, can be GPRS communication line or optical-fibre communications.
Described intelligent switchboard 3 includes: for gathering the harvester of each supply line voltage and electric current；According to described voltage and the processing means of electric current failure judgement circuit and for showing the first display device of each supply line status data.
When after the voltage being obtained each supply line by described harvester and current information, described processing means is according to the voltage of each circuit and current information, extract the transient state component of corresponding line, judge whether each circuit exists singlephase earth fault according to the transient state component of each circuit.After finding the faulty line that there is singlephase earth fault, described faulty line is isolated by described processing means, avoid it that other supply line's power data are impacted, and show described faulty line by described first display device, in order to this faulty line is safeguarded.
In the present embodiment, described processing means is line-failure indicator.
Operation of Electric Systems experience have shown that, in electric power system, most of fault is all " instantaneity ", and permanent fault is typically less than 10%.Therefore; most of failure problems can automatically reply; therefore; automatically chopper is overlapped; not only increase the safety and reliability of power supply, decrease loss of outage, but also improve the transient state level of power system; increase the power transmission capacity of high-tension line, it is possible to correct the mistrip caused due to chopper or protective relaying device.
So, in the present embodiment, described each supply line is connected with described intelligent switchboard by reclosing device, and described faulty line is isolated by the reclosing device tripping operation controlling described faulty line corresponding by described processing means.If transient fault, after failure vanishes, by the braking closing function of described reclosing device, realizing the connection being isolated supply line with electric power system, if permanent fault, described processing means controls described reclosing automatic blocking, before fault does not eliminates, refuse closing operation.
Described host computer 3 includes: for obtaining the advance data harvester of described fault message；For storing the storage device of described fault message.
For the ease of described fault message is shown, inquires about and analyzed, described host computer 3 also includes: the second display device of the fault message preserved in can reading described storage device.
Described power distribution network switchyard is additionally provided with alarm device, when described can only be after switch cubicle finds and there is the faulty line of singlephase earth fault, described alarm device sends alarm signal, notifies that faulty line is processed by operator in time, improves the efficiency of the process of fault.
Described alarm device can be directly connected to described intelligent switchboard, the processing means of described intelligent switchboard is sent the fault message of described faulty line as the trigger condition that alarm signal occurs, i.e. when the processing means of described intelligent switchboard sends the fault message of described faulty line, described alarm device sends alarm signal.
Described alarm device is also to be connected with described host computer, the advance data harvester of described host computer is obtained described fault message as the trigger condition that alarm signal occurs, i.e. after the advance data harvester of described host computer obtains described fault message, described alarm device sends alarm signal.
Power distribution network switchyard described in the present embodiment is capable of the automatic detection of faulty line by described intelligent switchboard, it is possible to quickly detection single-line ground fault；Simultaneously, it is achieved the automatic decision of distribution line failure and isolation in time, reduce power failure range, improve power supply reliability；And, historical failure information searching function can be realized by reading the fault message of described storage device storage.
It should be noted that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation or sequentially that there is any this reality between these entities or operation.Secondly, the verb mentioned in application documents " includes ", " comprising " and paradigmatic use thereof are not excluded for except those elements described in application documents or the element in addition to step or the existence of step.Article "a" or "an" before element is not excluded for the existence of multiple this element.
Although describing spirit and principles of the present invention by reference to some detailed description of the invention, however, it should be understood that, the present invention is not limited to disclosed detailed description of the invention, division to each side does not means that the feature in these aspects can not combine to be benefited yet, this division merely to statement convenience.It is contemplated that various amendments included in containing spirit and scope of the appended claims and equivalent arrangements.Scope of the following claims meets broadest explanation, thus comprises all such amendments and equivalent structure and function.
Claims (7)
1. a power distribution network switchyard with intelligent switchboard, it is characterised in that including:
Intelligent switchboard, described intelligent switchboard includes: for gathering the harvester of each supply line voltage and electric current；Determine the faulty line that there is singlephase earth fault according to described voltage and electric current, described faulty line is isolated and sent the processing means of fault message of described faulty line；For showing the first display device of each supply line status data；
Host computer, described host computer includes: for obtaining the advance data harvester of described fault message；For storing the storage device of described fault message；
Communication line, described communication line is mutual for the information between described intelligent switchboard and described host computer；
Wherein, described each supply line is connected with described intelligent switchboard by reclosing device, and described faulty line is isolated by the reclosing device tripping operation controlling described faulty line corresponding by described processing means.
Power distribution network switchyard the most according to claim 1, it is characterised in that described processing means is line-failure indicator.
Power distribution network switchyard the most according to claim 1, it is characterised in that described communication line is GPRS communication line or optical-fibre communications.
Power distribution network switchyard the most according to claim 1, it is characterised in that described host computer also includes:
Second display device, described second display device is for showing that current failure information and the data when query history fault message show.
5. according to the power distribution network switchyard described in any one of claim 1-4, it is characterised in that described power distribution network switchyard also includes:
The alarm device being connected with described intelligent switchboard or be connected with described host computer, described alarm device sends the alarm signal of correspondence according to described fault message.
Power distribution network switchyard the most according to claim 5, it is characterised in that described alarm device is the alarm that can send audible ringing signal.
Power distribution network switchyard the most according to claim 5, it is characterised in that described alarm device is the alarm that can send visual alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310722933.7A CN103683231B (en) | 2013-12-24 | 2013-12-24 | A kind of power distribution network switchyard with intelligent switchboard |
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| CN201310722933.7A CN103683231B (en) | 2013-12-24 | 2013-12-24 | A kind of power distribution network switchyard with intelligent switchboard |
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| CN103683231A CN103683231A (en) | 2014-03-26 |
| CN103683231B true CN103683231B (en) | 2016-08-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137288A (en) * | 2015-09-08 | 2015-12-09 | 国家电网公司 | Distribution line branch line switch indoor intelligent control system |
| CN105322542A (en) * | 2015-11-26 | 2016-02-10 | 国网北京市电力公司 | Processing method and device for distribution network fault |
| CN106771866B (en) * | 2016-12-16 | 2019-11-08 | 国网浙江省电力公司 | A kind of New single-phase ground fault judges system and its working method |
| CN107478953A (en) * | 2017-08-16 | 2017-12-15 | 江苏大唐国际吕四港发电有限责任公司 | A kind of power plant direct-current cabinet goes out line detecting method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1443624A1 (en) * | 2003-01-31 | 2004-08-04 | Viserge Limited | Fault control and restoration in a multi-feed power network |
| CN201226457Y (en) * | 2008-06-17 | 2009-04-22 | 上海纳杰电气成套有限公司 | High voltage intelligent monitoring apparatus |
| CN202737580U (en) * | 2012-08-03 | 2013-02-13 | 浙江超荣力电器有限公司 | Intelligent power distribution switch equipment |
| CN202749908U (en) * | 2012-05-23 | 2013-02-20 | 广西电网公司电力科学研究院 | Power-grid automatic measurement and control terminal device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1443624A1 (en) * | 2003-01-31 | 2004-08-04 | Viserge Limited | Fault control and restoration in a multi-feed power network |
| CN201226457Y (en) * | 2008-06-17 | 2009-04-22 | 上海纳杰电气成套有限公司 | High voltage intelligent monitoring apparatus |
| CN202749908U (en) * | 2012-05-23 | 2013-02-20 | 广西电网公司电力科学研究院 | Power-grid automatic measurement and control terminal device |
| CN202737580U (en) * | 2012-08-03 | 2013-02-13 | 浙江超荣力电器有限公司 | Intelligent power distribution switch equipment |
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