CN102386678A - Fault positioning monitoring system for distribution network - Google Patents
Fault positioning monitoring system for distribution network Download PDFInfo
- Publication number
- CN102386678A CN102386678A CN2011103461237A CN201110346123A CN102386678A CN 102386678 A CN102386678 A CN 102386678A CN 2011103461237 A CN2011103461237 A CN 2011103461237A CN 201110346123 A CN201110346123 A CN 201110346123A CN 102386678 A CN102386678 A CN 102386678A
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- Prior art keywords
- fault
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- distribution network
- monitoring system
- locating instrument
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Locating Faults (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a fault positioning monitoring system for a distribution network. The system comprises fault positioners, a signal receiving device and a fault information display device, wherein the fault positioners are used for measuring the specific positions of ground or short-circuit faults in lines by fault voltage and current traveling wave signals; the signal receiving device is used for receiving signals from the fault positioners; the fault positioners are arranged at the two ends of each line in the distribution network; each line is provided with at least two fault positioners; and the signal receiving device is connected with the fault information display device by a local area network. The fault positioning monitoring system has the advantages that: the faults can be accurately positioned to greatly shorten time for searching for the positions of the faults; and after a specific line with the fault is determined, loss caused by the fault can be decreased by cutting the circuit of the line off and simultaneously recovering the power supply of the other lines without the fault.
Description
Technical field
The present invention relates to a kind of distribution network failure positioning monitoring system, the particularly a kind of distribution network failure positioning monitoring system that can accurately measure the fault occurrence positions.
Background technology
China's power department extensively adopts the fault detector of electromechanical integration on the 10kV power distribution network at present, after breaking down, send line attendant one tunnel to search over.Because the power distribution network branched line is many, search the inconvenience of fault ten minutes, often the human and material resources of labor and time.For rural power grids, it is just difficult more that the cross a river of need crossing over mountain after mountain is got over ditch
Chinese patent CN1286405A discloses a kind of based on a plurality of monitor terminals (like FTU) are installed in the distribution, and circuit breaker, section breaker, the interconnection switch line number of going forward side by side constitutes a network matrix through calculating the acquisition locating information.This method need be installed a plurality of monitor terminals in distribution, and can only confirm that the circuit between which two monitor terminal breaks down, can't be accurate to circuit which partly break down.
Chinese patent CN201947058U discloses a kind of fault detector of wireless transmission type of the ABC of containing three-phase indicating device, the monotype communication terminal that is connected with the said wireless transmission type of at least one cover fault detector.This patent can only confirm that which bar circuit breaks down, and can't confirm the particular location that breaks down in the circuit, still requires a great deal of time when therefore fixing a breakdown and manpower removes the particular location of confirming that fault takes place.
Present distribution network failure location technology exists the location inaccurate; The shortcoming that reliability is not high; And, more adopt underground cable along with the development of city overhead wire is fewer and feweri, can't solve for a lot of existing location technologies of fault-location problem of underground cable.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide a kind of that can accurately measure the fault occurrence positions and do not receive the distribution network failure positioning monitoring system of power distribution network form restriction to above problem.
Technical scheme: a kind of distribution network failure positioning monitoring system comprises fault locating instrument through ground connection or short trouble particular location in the false voltage current traveling wave signal measurement circuit, is used to receive signal receiving device and the fault message display unit that fault locating instrument sends; Said fault locating instrument is installed on two ends and every circuit of every circuit in the power distribution network and installs two at least; Said signal receiving device is connected through local area network (LAN) with the fault message display unit; Said fault locating instrument comprises the signal supervisory instrument that is used to receive failure pulse signal, the satellite time receiving system that is used for receiving synchronously the satellite time signal, wireless communication apparatus and collection various types of signal and carries out the location processor of data processing; Said signal receiving device comprises satellite time receiving system, wireless communication apparatus that is used for receiving synchronously the satellite time signal and the analysis processor that the data-signal of fault locating instrument is handled.When break down in certain position of certain circuit of power distribution network; The fault point can produce one group of false voltage current traveling wave signal and propagate to the circuit two ends; Because the data acquisition sequential of each fault locating instrument is synchronous, the time difference of the pulse signal that therefore can receive according to each fault locating instrument calculates the particular location that the fault point takes place.In the end of each branch of circuit a fault locating instrument is installed all and just can be calculated the position of failure point on all circuits more accurately.The information of the timestamp of the fault traveling wave signal that the location processor of fault locating instrument through inside receives signal supervisory instrument is transferred to signal receiving device through wireless communication apparatus, and the fault traveling wave time of reception of each fault locating instrument that signal receiving device will receive stabs the particular location that its analysis processor of information via calculates fault point in the circuit; Last again the information of abort situation is transferred to the fault message display unit through local area network (LAN).
The present invention is suitable for 6-35kV and following high resistant or isolated neutral system, can realize short circuit and single phase ground fault location, the single-phase earth fault line selection of system and functions such as trend monitoring and high order harmonic component monitoring a little respectively are set.
Be applicable to that earth fault was judged through the maximum direction of the product term of electric current and voltage when underground cable was interval.
Be applicable to when overhead wire is interval that earth fault is combined to the phase angle that Io variable quantity and 3 is combined to Vo through 3 and judges.
Said fault locating instrument also comprises the short-distance wireless communication device, and said distribution network failure positioning monitoring system also comprises the portable terminal device that can receive abort situation information.Portable terminal device is furnished with communication interface, and directly the instruction of receiving system and abort situation information show fault message on lcd screen, and through the map guiding, directly the guiding personnel of patrolling and examining arrive the circuit fault point.
Beneficial effect: the accurate position that takes place of fault location, shortened the time that abort situation is searched greatly; The method of power supply that can recover other circuits that do not break down behind the circuit of confirming specifically to break down through the circuit that cuts off this circuit simultaneously is to reduce the loss that therefore fault causes.
Description of drawings
Fig. 1 is a schematic diagram of the present invention;
Fig. 2 is the schematic diagram of fault locating instrument of the present invention;
Fig. 3 is the schematic diagram of signal receiving device of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.As shown in the figure; A kind of distribution network failure positioning monitoring system comprises fault locating instrument 1 through fault particular location in the travelling wave signal measurement circuitry, is used to receive receiving system 2, the fault message display unit 3 of the signal that fault locating instrument 1 sends and can receives the portable terminal device 4 of abort situation information; Said fault locating instrument 1 is installed on two ends and every circuit of every circuit in the power distribution network and installs two at least; Said signal receiving device 2 and fault message display unit 3 are connected through local area network (LAN); Said fault locating instrument 1 comprises the signal supervisory instrument 11 that is used to receive failure pulse signal, the satellite time receiving system 12 that is used for receiving synchronously the satellite time signal, wireless communication apparatus 13, collect various types of signal and carry out the location processor 14 and the short-distance wireless communication device 15 of data processing; Said signal receiving device 2 comprises satellite time receiving system 12, wireless communication apparatus 13 that is used for receiving synchronously the satellite time signal and the analysis processor 21 that the data-signal of fault locating instrument 1 is handled.
When break down in certain position of certain circuit of power distribution network; The fault point can produce one group of false voltage current traveling wave signal and propagate to the circuit two ends; Because the data acquisition sequential of each fault locating instrument 1 is synchronous, the time difference of the pulse signal that therefore can receive according to each fault locating instrument 1 calculates the particular location that the fault point takes place.In the end of each branch of circuit a fault locating instrument 1 is installed all and just can be calculated the position of failure point on all circuits more accurately.The information of the timestamp of the fault traveling wave signal that the location processor of fault locating instrument 1 through inside receives signal supervisory instrument 11 is transferred to signal receiving device 2 through wireless communication apparatus 13, and the fault traveling wave time of reception of each fault locating instrument 1 that signal receiving device 2 will receive stabs the particular location that its analysis processor 21 of information via calculates fault point in the circuit; Last again the information of abort situation is transferred to fault message display unit 3 through local area network (LAN).
Portable terminal device 4 is furnished with communication interface, and directly the instruction of receiving system and abort situation information show fault message on lcd screen, and through the map guiding, directly the guiding personnel of patrolling and examining arrive the circuit fault point.
Claims (2)
1. distribution network failure positioning monitoring system is characterized in that: comprise fault locating instrument (1) through fault particular location in the travelling wave signal measurement circuitry, be used to receive the signal receiving device (2) and the fault message display unit (3) of the signal that fault locating instrument (1) sends; Said fault locating instrument (1) is installed on two ends and each circuit of each circuit in the power distribution network and installs two at least; Said signal receiving device (2) is connected through local area network (LAN) with fault message display unit (3); Said fault locating instrument (1) comprises the signal supervisory instrument (11) that is used to receive failure pulse signal, the satellite time receiving system (12) that is used for receiving synchronously the satellite time signal, wireless communication apparatus (13) and collection various types of signal and carries out the location processor (14) of data processing; Said signal receiving device (2) comprises satellite time receiving system (12), wireless communication apparatus (13) that is used for receiving synchronously the satellite time signal and the analysis processor (21) that the data-signal of fault locating instrument (1) is handled.
2. distribution network failure positioning monitoring system according to claim 1; It is characterized in that: said fault locating instrument (1) also comprises short-distance wireless communication device (15), and said distribution network failure positioning monitoring system also comprises the portable terminal device (4) that can receive abort situation information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103461237A CN102386678A (en) | 2011-11-07 | 2011-11-07 | Fault positioning monitoring system for distribution network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103461237A CN102386678A (en) | 2011-11-07 | 2011-11-07 | Fault positioning monitoring system for distribution network |
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| CN102386678A true CN102386678A (en) | 2012-03-21 |
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| CN2011103461237A Pending CN102386678A (en) | 2011-11-07 | 2011-11-07 | Fault positioning monitoring system for distribution network |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245881A (en) * | 2013-04-22 | 2013-08-14 | 国家电网公司 | Power distribution network fault analyzing method and device based on tidal current distribution characteristics |
| CN103884959A (en) * | 2013-12-31 | 2014-06-25 | 江苏省电力公司镇江供电公司 | Power supply line fault locating instrument and fault locating method |
| CN103901321A (en) * | 2014-03-18 | 2014-07-02 | 清华大学 | Method for positioning power grid fault source by using power quality monitoring data and power system |
| CN103983901A (en) * | 2014-05-30 | 2014-08-13 | 智友光电技术发展有限公司 | Online failure positioning method for ring main unit cable line |
| CN104459464A (en) * | 2014-11-28 | 2015-03-25 | 国网河南省电力公司南阳供电公司 | Power transmission line fault point positioning system and method |
| CN104535895A (en) * | 2015-01-09 | 2015-04-22 | 山东康威通信技术股份有限公司 | Cable-and-overhead-line hybrid line fault section method based on synchronous sampling technology |
| CN104978616A (en) * | 2014-04-03 | 2015-10-14 | 国网山东齐河县供电公司 | Power distribution network information management system |
| CN105203921A (en) * | 2015-09-17 | 2015-12-30 | 国家电网公司 | Positioning method for power-distribution line single-phase earth fault |
| WO2016141568A1 (en) * | 2015-03-11 | 2016-09-15 | Abb Technology Ltd | Method and apparatus for detection of power system disturbance within digital substation |
| CN107039954A (en) * | 2017-05-03 | 2017-08-11 | 张照滟 | A kind of electric power networks formula intelligent protection device |
| CN109507540A (en) * | 2018-12-20 | 2019-03-22 | 孟小晶 | High value ground short circuit fault point is pressed to search instrument and lookup method in one kind |
| CN113594962A (en) * | 2021-07-20 | 2021-11-02 | 李建华 | Intelligent identification method for high-altitude dangerous high-voltage line fault in mountainous area |
| CN114123511A (en) * | 2021-11-30 | 2022-03-01 | 海南电网有限责任公司 | Method and system for monitoring and analyzing abnormal position of cable power distribution terminal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255639A (en) * | 1998-11-12 | 2000-06-07 | 日本高压电气株式会社 | Positioning system of fault point |
-
2011
- 2011-11-07 CN CN2011103461237A patent/CN102386678A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1255639A (en) * | 1998-11-12 | 2000-06-07 | 日本高压电气株式会社 | Positioning system of fault point |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245881A (en) * | 2013-04-22 | 2013-08-14 | 国家电网公司 | Power distribution network fault analyzing method and device based on tidal current distribution characteristics |
| CN103245881B (en) * | 2013-04-22 | 2015-03-04 | 国家电网公司 | Power distribution network fault analyzing method and device based on tidal current distribution characteristics |
| CN103884959A (en) * | 2013-12-31 | 2014-06-25 | 江苏省电力公司镇江供电公司 | Power supply line fault locating instrument and fault locating method |
| CN103901321A (en) * | 2014-03-18 | 2014-07-02 | 清华大学 | Method for positioning power grid fault source by using power quality monitoring data and power system |
| CN104978616A (en) * | 2014-04-03 | 2015-10-14 | 国网山东齐河县供电公司 | Power distribution network information management system |
| CN103983901A (en) * | 2014-05-30 | 2014-08-13 | 智友光电技术发展有限公司 | Online failure positioning method for ring main unit cable line |
| CN104459464A (en) * | 2014-11-28 | 2015-03-25 | 国网河南省电力公司南阳供电公司 | Power transmission line fault point positioning system and method |
| CN104535895A (en) * | 2015-01-09 | 2015-04-22 | 山东康威通信技术股份有限公司 | Cable-and-overhead-line hybrid line fault section method based on synchronous sampling technology |
| US10444272B2 (en) | 2015-03-11 | 2019-10-15 | Abb Schweiz Ag | Method and apparatus for detection of power system disturbance within a digital substation |
| WO2016141568A1 (en) * | 2015-03-11 | 2016-09-15 | Abb Technology Ltd | Method and apparatus for detection of power system disturbance within digital substation |
| CN105203921A (en) * | 2015-09-17 | 2015-12-30 | 国家电网公司 | Positioning method for power-distribution line single-phase earth fault |
| CN107039954A (en) * | 2017-05-03 | 2017-08-11 | 张照滟 | A kind of electric power networks formula intelligent protection device |
| CN109507540A (en) * | 2018-12-20 | 2019-03-22 | 孟小晶 | High value ground short circuit fault point is pressed to search instrument and lookup method in one kind |
| CN113594962A (en) * | 2021-07-20 | 2021-11-02 | 李建华 | Intelligent identification method for high-altitude dangerous high-voltage line fault in mountainous area |
| CN114123511A (en) * | 2021-11-30 | 2022-03-01 | 海南电网有限责任公司 | Method and system for monitoring and analyzing abnormal position of cable power distribution terminal |
| CN114123511B (en) * | 2021-11-30 | 2024-04-05 | 海南电网有限责任公司 | Method and system for monitoring and analyzing abnormal position of cable power distribution terminal |
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Application publication date: 20120321 |