CN102478617A - Intelligent overhead line fault alarm method - Google Patents
Intelligent overhead line fault alarm method Download PDFInfo
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- CN102478617A CN102478617A CN2010105644505A CN201010564450A CN102478617A CN 102478617 A CN102478617 A CN 102478617A CN 2010105644505 A CN2010105644505 A CN 2010105644505A CN 201010564450 A CN201010564450 A CN 201010564450A CN 102478617 A CN102478617 A CN 102478617A
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Abstract
The invention discloses an intelligent overhead line fault alarm method, which comprises an overhead conductor, a power supply and a power supply, wherein the overhead conductor comprises a current acquisition unit and a current alarm unit; processing data, wherein when the overhead conductor normally runs, the current of the overhead conductor is in a design range, the acquired current is the actual load current, once a fault occurs, the acquired current is the fault current, the fault current is judged, and the fault alarm type is determined; analyzing and judging the current data, determining the correction of each fixed value of the self-adaptive working mode and the fault detection according to the current magnitude condition, and sending the correction to a background computer for comprehensive management; automatically correcting the fault detection constant value; the data telecommunication mode is automatically modified. The invention comprehensively utilizes microprocessor technology, data communication technology and data analysis technology, overcomes the defects of fault indicators, has strong fault detection capability and self-adaptive function, can realize the rapid detection and rapid positioning of the faults of the overhead lines and ensures the safe and stable operation of the overhead lines of the distribution network.
Description
Technical field
The present invention relates to power industry power transmission and distribution field, relate in particular to a kind of intelligent pole line fault alarm method in fault detect and the relay protection.
Background technology
Along with fast development of national economy, the load of power circuit is in continuous increase, and radius of electricity supply also strengthens thereupon, and branched line is also increasing; Urban power distribution network progressively transform the methods of operation such as trunk, looped network, dual-ring network, contact, open loop as by trunk external diffusion type, and the city pole line is powered cable gradually and replaces.
Line construction becomes increasingly complex, in case break down, searches just unusual difficulty of concrete trouble spot, several hours at least, tens hours at most, both influenced the reliability of power supply, again to people produce, life brings very big loss and inconvenience.
In the existing fault indicating means.Fault detection capability is single, and producer can only confirm the fault detect scope of fault detector according to the customer order requirement, does not have adaptive ability, can not satisfy the different load current failure and detect application need; In addition, product does not change fault inspection pattern, owing to have many deficiencies on the function, the success ratio of fault detect is not high, can not realize data communication again, therefore fails by fine application always; As adopt distribution automation system; Can realize fault automatic location, but, be difficult to effectively promoted because input cost is very big; How to fully utilize microprocessor technology, data communication technology; Data analysis technique overcomes the fault detector deficiency, develop a kind of fault-detecting ability strong, have adaptation function and an ability; Can realize pole line fault fast detecting, the quick intelligent pole line fault alarm method of location, guarantee that distribution pole line safety, stable operation are that the present inventor is devoted to the problem studying and solve.
Summary of the invention
The objective of the invention is to overcome the defective of prior art and a kind of intelligent pole line fault alarm method is provided; Its comprehensive utilization microprocessor technology, data communication technology, data analysis technique; Overcome the fault detector deficiency, fault-detecting ability is strong, has adaptation function; Can realize pole line fault fast detecting, locate fast, guarantee safety, the stable operation of distribution pole line.
The technical scheme that realizes above-mentioned purpose is: a kind of intelligent pole line fault alarm method, comprise the aerial condutor that detects, and wherein, may further comprise the steps:
Gather the electric current step, gather the electric current of aerial condutor, and this current data is stored;
The deal with data step, when aerial condutor normally moved, the electric current of aerial condutor was in scope of design; The electric current of gathering out is the actual load electric current, in case break down, the electric current that collects is a fault current; Fault current is carried out fault verification and storage, confirm the fault alarm type;
Confirm self adaptation mode of operation step; To analyzing, judge through the current data of conversion; And based on aerial condutor load current situation; Confirm the correction of self adaptation mode of operation, fault detect each item definite value, in time fault, the unusual or real-time information on load of distant place remote measurement are sent to background computer and carry out integrated management to realize the long-haul telemetry dual-use function of trolley line fault alarm and trolley line load current;
Revise fault detect definite value step,, revise the fault detect definite value, satisfy malfunction monitoring needs under the different load electric current according to per day load current;
Revise the DATEL mode step, revise the DATEL pattern with energy savings according to the load current size.
Above-mentioned intelligent pole line fault alarm method, wherein, described collection electric current step realizes through a sensor.
Above-mentioned intelligent pole line fault alarm method, wherein, described deal with data step realizes through a signal protection and A/D convertor circuit.
Above-mentioned intelligent pole line fault alarm method, wherein, described definite self-adaptation mode of operation step, correction fault detect definite value step and correction DATEL mode step realize through a MCU.
Above-mentioned intelligent pole line fault alarm method, wherein, in described definite self-adaptation mode of operation step, fault, transmission unusual or the real-time information on load of distant place remote measurement realize through a wireless RF module.
The invention has the beneficial effects as follows: the present invention is a kind of intelligent pole line fault alarm method with adaptation function; Be used to detect faults of overhead lines of distribution network; Both improved traditional fault detector fault-detecting ability; Have various adaptive abilities again, satisfy the application need of pole line running environment automatically; According to sampled data, in conjunction with the fault judgement model, finally confirm fault type, realize Rapid Alarm through wireless communication module, fast localization of fault; Can confirm intelligent pole line fault alarm malfunction monitoring mode of operation according to the current in wire size, revise the fault detect definite value, confirm remote data communication mode etc.
Description of drawings
Fig. 1 is the failure criterion table to analyzing, judge through the current data of conversion among the present invention.
Embodiment
Below in conjunction with an embodiment the present invention is described further.
A kind of intelligent pole line fault alarm method of the present invention comprises the aerial condutor that detects, and may further comprise the steps:
Gather the electric current step, gather the electric current of aerial condutor, and this current data is stored, this step can realize through a sensor;
The deal with data step, when aerial condutor normally moved, the electric current of aerial condutor was in scope of design; The electric current of gathering out is the actual load electric current; In case break down, the electric current that collects is a fault current, and fault current is carried out fault verification and storage; Confirm the fault alarm type, this step can realize through a signal protection and A/D convertor circuit;
Confirm self adaptation mode of operation step; To analyzing, judge through the current data of conversion; And based on aerial condutor load current situation; Confirm the correction of self adaptation mode of operation, fault detect each item definite value; In time fault, the unusual or real-time information on load of distant place remote measurement are sent to background computer and carry out integrated management to realize the long-haul telemetry dual-use function of trolley line fault alarm and trolley line load current, this step can realize that fault, transmission unusual or the real-time information on load of distant place remote measurement realize through a wireless RF (radio frequency) module through a MCU (microprocessor);
The self-adaptation mode of operation is the power-on time that can continue according to equipment energy complementary capabilities and standby power supply, confirms the equipment work pattern; In addition joining rack ceases to be busy daily load current conditions is that equipment can write down 24 hourly average load currents automatically, and adds up, and the definite value of adjustment fault current, this function are applicable under the different load environment judgement to all kinds of faults;
The correction of fault detect each item definite value; Be that pole line partial fault or unusual and line impedance have direct relation; Line impedance can be confirmed some definite value or the parameter of relay protection, and for adapting to the correction of these definite values or parameter, but fault alarm has increased and the inside corrected parameter setting of protection relating to parameters; For example: through long-range or on the spot PDA definite value is revised setting, prevent to cause the malfunction monitoring disabler because of parameter is inconsistent.
Revise fault detect definite value step,, revise the fault detect definite value, satisfy malfunction monitoring needs under the different load electric current according to per day load current;
Revise the DATEL mode step; Revise the DATEL pattern according to load current size, reaching the purpose of energy savings, less than normal to launch alert data be the internal cell brownout to not keeping wireless module like: current in wire; The situation of enough emissive power can not be provided; MCU can initiatively close the wireless module power supply when sealing alert data up for safekeeping, and guarantees that MCU can operate as normal.Recover just often automatic open wireless module working power, normal transmission alert data greater than definite value or internal cell voltage at current in wire.
See also Fig. 1, among the present invention, to pole line faults analysis, judgement, the failure criterion table that can provide according to power consumer; This fault type criterion table has combined power consumer at the operating mature experience of pole line, and the relevant rules in the design of protection definite value, after dynamic model actual measurement adjustment, formulates; Data can be done suitable adjustment according to the distribution method of operation in the table.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention; The technician in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited each claim.
Claims (5)
1. an intelligent pole line fault alarm method comprises the aerial condutor that detects, and it is characterized in that, may further comprise the steps:
Gather the electric current step, gather the electric current of aerial condutor, and this current data is stored;
The deal with data step, when aerial condutor normally moved, the electric current of aerial condutor was in scope of design; The electric current of gathering out is the actual load electric current, in case break down, the electric current that collects is a fault current; Fault current is carried out fault verification and storage, confirm the fault alarm type;
Confirm self adaptation mode of operation step; To analyzing, judge through the current data of conversion; And based on aerial condutor load current situation; Confirm the correction of self adaptation mode of operation, fault detect each item definite value, in time fault, the unusual or real-time information on load of distant place remote measurement are sent to background computer and carry out integrated management to realize the long-haul telemetry dual-use function of trolley line fault alarm and trolley line load current;
Revise fault detect definite value step,, revise the fault detect definite value, satisfy malfunction monitoring needs under the different load electric current according to per day load current;
Revise the DATEL mode step, revise the DATEL pattern with energy savings according to the load current size.
2. intelligent pole line fault alarm method according to claim 1 is characterized in that, described collection electric current step realizes through a sensor.
3. intelligent pole line fault alarm method according to claim 1 is characterized in that, described deal with data step realizes through a signal protection and A/D convertor circuit.
4. intelligent pole line fault alarm method according to claim 1 is characterized in that, described definite self-adaptation mode of operation step, correction fault detect definite value step and correction DATEL mode step realize through a MCU.
5. intelligent pole line fault alarm method according to claim 1 is characterized in that, in described definite self-adaptation mode of operation step, fault, transmission unusual or the real-time information on load of distant place remote measurement realize through a wireless RF module.
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| CN2010105644505A CN102478617A (en) | 2010-11-29 | 2010-11-29 | Intelligent overhead line fault alarm method |
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| CN2010105644505A CN102478617A (en) | 2010-11-29 | 2010-11-29 | Intelligent overhead line fault alarm method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323650A (en) * | 2013-06-28 | 2013-09-25 | 珠海博威电气有限公司 | Overhead line comprehensive monitoring device |
| CN104202191A (en) * | 2014-09-03 | 2014-12-10 | 广西电网公司电力科学研究院 | Switching method of communication working modes of fault indicator remote transmission communication terminal and master station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04268465A (en) * | 1991-02-22 | 1992-09-24 | Sumitomo Electric Ind Ltd | Fault locating method for overhead power line |
| JP2004215478A (en) * | 2002-08-07 | 2004-07-29 | Kansai Electric Power Co Inc:The | Transmission line fault locator, transmission line fault locating method, transmission line fault locating program, and recording medium recording the program |
| CN201314942Y (en) * | 2008-12-05 | 2009-09-23 | 上海市电力公司 | Monitoring system for detecting the fault of distribution network trolly wires |
| CN201314941Y (en) * | 2008-12-05 | 2009-09-23 | 上海艾晋电力科技有限公司 | Trolly wire fault alarm |
| CN101813738A (en) * | 2010-04-06 | 2010-08-25 | 鞍山银宇电子科技有限公司 | Wireless digital power supply line fault alarm device and method |
-
2010
- 2010-11-29 CN CN2010105644505A patent/CN102478617A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04268465A (en) * | 1991-02-22 | 1992-09-24 | Sumitomo Electric Ind Ltd | Fault locating method for overhead power line |
| JP2004215478A (en) * | 2002-08-07 | 2004-07-29 | Kansai Electric Power Co Inc:The | Transmission line fault locator, transmission line fault locating method, transmission line fault locating program, and recording medium recording the program |
| CN201314942Y (en) * | 2008-12-05 | 2009-09-23 | 上海市电力公司 | Monitoring system for detecting the fault of distribution network trolly wires |
| CN201314941Y (en) * | 2008-12-05 | 2009-09-23 | 上海艾晋电力科技有限公司 | Trolly wire fault alarm |
| CN101813738A (en) * | 2010-04-06 | 2010-08-25 | 鞍山银宇电子科技有限公司 | Wireless digital power supply line fault alarm device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323650A (en) * | 2013-06-28 | 2013-09-25 | 珠海博威电气有限公司 | Overhead line comprehensive monitoring device |
| CN104202191A (en) * | 2014-09-03 | 2014-12-10 | 广西电网公司电力科学研究院 | Switching method of communication working modes of fault indicator remote transmission communication terminal and master station |
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Application publication date: 20120530 |