CN103683231A - Power distribution network switching station with intelligent switch cabinet - Google Patents
Power distribution network switching station with intelligent switch cabinet Download PDFInfo
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- CN103683231A CN103683231A CN201310722933.7A CN201310722933A CN103683231A CN 103683231 A CN103683231 A CN 103683231A CN 201310722933 A CN201310722933 A CN 201310722933A CN 103683231 A CN103683231 A CN 103683231A
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Abstract
The invention discloses a power distribution network switching station with an intelligent switch cabinet. The power distribution network switching station comprises the intelligent switch cabinet, wherein the intelligent switch cabinet comprises a collection device for collecting a voltage and a current of each power supply circuit; a processing device for determining a fault circuit with a single-way earth fault based on the voltage and the current, isolating the fault circuit and sending a fault message of the fault circuit; a first display device for displaying state data of each power supply circuit; an upper computer which includes a preposed data collection device for obtaining the fault message, a storage device for storing the fault message and a communication circuit for interacting information between the intelligent switch cabinet and the upper computer. The power distribution network switching station can detect and isolate a single-line earth fault rapidly.
Description
Technical field
The present invention relates to distribution line failure checkout gear technical field, more particularly, relate to a kind of power distribution network switchyard with intelligent switchboard.
Background technology
The embodiments of the present invention that be intended to for stating in claims this part provide background or context.Description herein can comprise the concept that can probe into, but the concept of having expected or having probed into not necessarily.Therefore, unless at this, point out, the content of describing in this part is not prior art for the application's specification and claims, and not because be included in just admit it is prior art in this part.
The safe operation of power distribution network is directly connected to the interests of power consumer.With respect to power transmission network, distribution net work structure, running environment and equipment service conditions situation are complicated, and these factors cause the failure rate that power distribution network is higher.Wherein, single phase ground fault is modal distribution network failure.
But along with the continuous increase of current supply load, the branch of distribution network line is also increasing, line construction also becomes increasingly complex.If distribution network line breaks down, often by the method for artificial line walking, fix a breakdown, search concrete fault point very difficult, the reliability of power supply cannot be protected.Current problem demanding prompt solution while therefore, how to realize the fast detecting of single phase ground fault circuit.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of power distribution network switchyard with intelligent switchboard, described power distribution network switchyard can fast detecting single-line ground fault.
For achieving the above object, the invention provides following technical scheme:
A power distribution network switchyard with intelligent switchboard, is characterized in that, comprising:
Intelligent switchboard, described intelligent switchboard comprises: for gathering the harvester of each supply line's voltage and electric current; According to described voltage and electric current, determine the faulty line that has one-way earth fault, described faulty line is isolated and sent to the processing unit of the fault message of described faulty line; For showing the first display unit of each supply line's status data;
Host computer, described host computer comprises: 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 for the information interaction between described intelligent switchboard and described host computer.
Preferably, in above-mentioned power distribution network switchyard, described processing unit 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 comprises:
The second display unit, described the second display unit is for showing current fault message and data during for 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, controls the reclosing device tripping operation that described faulty line is corresponding described faulty line is isolated by described processing unit.
Preferably, in above-mentioned power distribution network switchyard, described power distribution network switchyard is also opened and is comprised:
The warning device that is connected or is connected with described host computer with described intelligent switchboard, described warning device sends corresponding alarm signal according to described fault message.
Preferably, in above-mentioned power distribution network switchyard, described warning device is the alarm of the alarm signal of can sounding.
Preferably, in above-mentioned power distribution network switchyard, described warning device is for sending the alarm of visual alarm.
From technique scheme, can find out, power distribution network switchyard provided by the present invention can be realized the automatic detection of faulty line by described intelligent switchboard, can fast detecting single-line ground fault; Meanwhile, realize the automatic decision of distribution line failure and isolation in time, reduced power failure range, improved power supply reliability; And, can realize historical failure information searching function by reading the fault message of described memory device stores.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of a kind of power distribution network switchyard that Fig. 1 provides for the existing embodiment of the present invention.
Embodiment
Just as described in the background section, along with the continuous increase of current supply load, the branch of distribution network line is also increasing, and line construction also becomes increasingly complex.If distribution network line breaks down, often by the method for artificial line walking, fix a breakdown, search concrete fault point very difficult, the reliability of power supply cannot be protected.Current problem demanding prompt solution while therefore, how to realize the fast detecting of single phase ground fault circuit.
Inventor studies discovery, can realize by having the intelligent switchboard of fault detect the automatic detection of faulty line,
Based on above-mentioned research, the invention provides a kind of power distribution network switchyard with intelligent switchboard, this power distribution network switchyard comprises:
Intelligent switchboard, described intelligent switchboard comprises: for gathering the harvester of each supply line's voltage and electric current; According to described voltage and electric current, determine the faulty line that has one-way earth fault, described faulty line is isolated and sent to the processing unit of the fault message of described faulty line; For showing the first display unit of each supply line's status data;
Host computer, described host computer comprises: 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 for the information interaction between described intelligent switchboard and described host computer.
Power distribution network switchyard of the present invention can be realized the automatic detection of faulty line by described intelligent switchboard, can fast detecting single-line ground fault; Meanwhile, realize the automatic decision of distribution line failure and isolation in time, reduced power failure range, improved power supply reliability; And, can realize historical failure information searching function by reading the fault message of described memory device stores.
It is more than the application's core concept, 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, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A lot of details have been set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, so the present invention is not subject to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when the embodiment of the present invention is described in detail in detail; for ease of explanation; the schematic diagram of indication device structure can be disobeyed general ratio and be done local amplification, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.The three-dimensional space that should comprise in addition, length, width and height 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 figure 1, described power distribution network switchyard comprises: intelligent switchboard 1, communication line 2 and host computer 3.Wherein, described communication line 2, for the information interaction between described intelligent switchboard 1 and described host computer 3, can be GPRS communication line or optical-fibre communications.
Described intelligent switchboard 3 comprises: for gathering the harvester of each supply line's voltage and electric current; According to the processing unit of described voltage and electric current failure judgement circuit and for showing the first display unit of each supply line's status data.
When obtaining by described harvester after the voltage and current information of each supply line, described processing unit is according to the voltage of each circuit and current information, the transient state component that extracts corresponding line, judges according to the transient state component of each circuit whether each circuit exists single phase ground fault.After finding the faulty line that has one-way earth fault, described processing unit is isolated described faulty line, avoid it to other supply line's power supply data, to impact, and show described faulty line by described the first display unit, to this faulty line is safeguarded.
In the present embodiment, described processing unit is line-failure indicator.
Power system operation experience shows, in electric power system, most fault is all " instantaneity ", and permanent fault is generally less than 10%.Therefore; most failure problems can automatically reply; therefore; automatically circuit breaker is overlapped; the safety and reliability that has not only improved power supply, has reduced loss of outage, but also has improved the transient state level of electric power system; increase the power transmission capacity of high-tension line, also can correct the mistrip causing due to circuit breaker or protective relaying device.
So in the present embodiment, described each supply line is connected with described intelligent switchboard by reclosing device, by described processing unit, controls the reclosing device tripping operation that described faulty line is corresponding described faulty line is isolated.If transient fault, after fault disappears, by the braking closing function of described reclosing device, realization is isolated being connected of supply line and electric power system, if permanent fault, described processing unit is controlled described reclosing automatic blocking, before fault is not eliminated, refusal closing operation.
Described host computer 3 comprises: 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, inquired about and analyzes, described host computer 3 also comprises: second display unit that can read the fault message of preserving in described storage device.
Described power distribution network switchyard is also provided with warning device, when described, can only find after the faulty line that has one-way earth fault by switch cubicle, described warning device sends alarm signal, notifies operating personnel in time faulty line to be processed, and has improved the efficiency of the processing of fault.
Described warning device can directly be connected with described intelligent switchboard, the fault message that the processing unit of described intelligent switchboard is sent to described faulty line is as the trigger condition that alarm signal occurs, when the processing unit of described intelligent switchboard sends the fault message of described faulty line, described warning device sends alarm signal.
Described warning device is also to be connected with described host computer, the advance data harvester of described host computer is obtained to described fault message as the trigger condition that alarm signal occurs, the advance data harvester when described host computer obtains after described fault message, and described warning device sends alarm signal.
Described in the present embodiment, power distribution network switchyard can be realized the automatic detection of faulty line by described intelligent switchboard, can fast detecting single-line ground fault; Meanwhile, realize the automatic decision of distribution line failure and isolation in time, reduced power failure range, improved power supply reliability; And, can realize historical failure information searching function by reading the fault message of described memory device stores.
It should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.Secondly, the verb of mentioning in application documents " comprises ", those elements or the element step or the existence of step of recording in application documents do not got rid of in " comprising " and paradigmatic use thereof.Article before element " one " or " one " do not get rid of the existence of a plurality of this elements.
Although described spirit of the present invention and principle with reference to some embodiments, but should be appreciated that, the present invention is not limited to disclosed embodiment, the division of each side is not meant that to the feature in these aspects can not combine to be benefited yet, and this division is only the convenience in order to explain.The present invention is intended to contain interior included various modifications and the equivalent arrangements of spirit and scope of claims.The scope of claims meets the most wide in range explanation, thereby comprises all such modifications and equivalent structure and function.
Claims (8)
1. a power distribution network switchyard with intelligent switchboard, is characterized in that, comprising:
Intelligent switchboard, described intelligent switchboard comprises: for gathering the harvester of each supply line's voltage and electric current; According to described voltage and electric current, determine the faulty line that has one-way earth fault, described faulty line is isolated and sent to the processing unit of the fault message of described faulty line; For showing the first display unit of each supply line's status data;
Host computer, described host computer comprises: 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 for the information interaction between described intelligent switchboard and described host computer.
2. power distribution network switchyard according to claim 1, is characterized in that, described processing unit is line-failure indicator.
3. power distribution network switchyard according to claim 1, is characterized in that, described communication line is GPRS communication line or optical-fibre communications.
4. power distribution network switchyard according to claim 1, is characterized in that, described host computer also comprises:
The second display unit, described the second display unit is for showing current fault message and data during for query history fault message show.
5. power distribution network switchyard according to claim 1, it is characterized in that, described each supply line is connected with described intelligent switchboard by reclosing device, controls the reclosing device tripping operation that described faulty line is corresponding described faulty line is isolated by described processing unit.
6. according to the power distribution network switchyard described in claim 1-5 any one, it is characterized in that, described power distribution network switchyard is also opened and is comprised:
The warning device that is connected or is connected with described host computer with described intelligent switchboard, described warning device sends corresponding alarm signal according to described fault message.
7. power distribution network switchyard according to claim 6, is characterized in that, described warning device is the alarm of the alarm signal of can sounding.
8. power distribution network switchyard according to claim 6, is characterized in that, described warning device is for sending the alarm of visual alarm.
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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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| CN103683231B CN103683231B (en) | 2016-08-24 |
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Cited By (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 |
| CN106771866A (en) * | 2016-12-16 | 2017-05-31 | 国网浙江省电力公司 | A kind of New single-phase earth fault judges system and its method of work |
| 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 |
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| 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)
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| 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 |
Cited By (5)
| 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 |
| CN106771866A (en) * | 2016-12-16 | 2017-05-31 | 国网浙江省电力公司 | A kind of New single-phase earth fault judges system and its method of work |
| 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 |
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| CN103683231B (en) | 2016-08-24 |
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