CN105721219B - Power line failure indicator with time synchronization function - Google Patents
Power line failure indicator with time synchronization function Download PDFInfo
- Publication number
- CN105721219B CN105721219B CN201610126655.2A CN201610126655A CN105721219B CN 105721219 B CN105721219 B CN 105721219B CN 201610126655 A CN201610126655 A CN 201610126655A CN 105721219 B CN105721219 B CN 105721219B
- Authority
- CN
- China
- Prior art keywords
- time
- data
- monitoring unit
- unit
- indicating unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
- H04L41/064—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis involving time analysis
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
There is clock circuit, the indicating unit to have real-time clock register for power line failure indicator with time synchronization function, including indicating unit, monitoring unit, the monitoring unit；The time that the acquisition time of measurement data or alarm event occur is issued monitoring unit by the indicating unit；Data including the current time of monitoring unit are sent back to indicating unit by monitoring unit again, indicating unit calculates information transmission time after receiving data, it uses transmission time to add the current time received from monitoring unit as the current time of indicating unit, realizes the time synchronization of indicating unit and monitoring unit.The invention enables each indicating unit of fault detector is synchronous with the data of monitoring unit and warning information, according to more acurrate, it is more acurrate that recording for moment occurs for failure for the data of breakdown judge.
Description
Technical field
The present invention relates to a kind of power line failure indicators.
Background technology
Electric power line fault indicator originates from the Germany of the 1980s, and the purpose for inventing it is to indicate
The approach that power line short-circuit electric current flows through helps people to find fault point.It introduces and learns since the nineties in China
The Development Techniques of external short circuit indicator.
Into 21st century, people begin to focus on the signal teletransmission problem of short circuit indicator.Short circuit indicator action with
Afterwards, local instruction is first provided, actuating signal is then sent out by the high pressures insulation media such as wireless, optical fiber again.The reality of signal teletransmission
It is existing, the sight obstruction of overhead transmission line and cable machinery is breached, the viewing distance of people is extended, and is gradually evolved into as distribution
Line fault positioning system.It is combined with SCADA dispatching/generalized information system, can improve the work effect of operation power and traffic department
Rate and automatic management level.It is developed to now by its actuating signal access dispatching automated system, certainly in conjunction with substation's synthesis
Dynamicization system information will be helpful to earthing wire-selecting and trouble shoot.
Present fault detector may be used also other than realizing " remote signalling " functions such as fault detect, instruction and signal teletransmission
With realization " telemetering "（That is signal quantization）, " remote control " and " remote regulating "（That is parameter adjustment）Function.
In " 13 " planning in China, plan to the year two thousand twenty puts into 2 trillion yuans and is used for distribution network transform, especially agriculture
Net transformation, a large amount of fault detector will be applied, and wherein overhead type fault detector will be emphasis.Because of an indicating fault
Device is made of the indicating unit of a monitoring unit and 3 or more, is used between each indicating unit and monitoring unit at present
Wireless communication or polymer optical fiber communication, monitoring unit poll indicating unit gathered data or indicating unit are with different channel actives
To monitoring unit reported data.Indicating unit is acquired data by the time of oneself, because each indicating unit is asynchronous, adopts
The data of A, B, C three-phase collected are simultaneously asynchronous, although these data can also be used to analysis grounding and short trouble, not enough
Accurately, data can not be used for as measure monitor.For example electricity stealing monitoring can use each phase load of primary side and secondary side
Each phase load is compared, and fault detector can acquire primary side load, but because each phase data is asynchronous, also with electric energy meter
Data are asynchronous, can not compare.
Invention content
In order to overcome the above-mentioned deficiency of existing power line failure indicator, the present invention, which provides one kind, having the function of time synchronization
Power line failure indicator.
The present invention the technical solution to solve the technical problem is that：Power line failure indicator with time synchronization function,
Including indicating unit, monitoring unit, there is the monitoring unit clock circuit, the indicating unit to be posted with real-time clock
The interruption of storage, the MCU of the real-time clock register pair indicating unit carries out accumulating operation to realize time clock feature；
The time that the acquisition time of measurement data or alarm event occur is issued monitoring unit by the indicating unit, works as prison
It surveys unit and receives the judgement for judging the time received and whether being less than the time of making the product after data into row format, work as discovery
Measurement data is abandoned when the time of reception is wrong without storing, and is changed to send a fault event data packet, is used monitoring unit
The time identifier of oneself is the time of the packet when analyzing data；When the time of reception is correct, by receiving time together with data
Storage；
Data including the current time of monitoring unit are sent back to indicating unit by monitoring unit again, and indicating unit is received
To after data, according to communication baud rate B and data length L, information transmission time is calculated：
Transmission time (millisecond)=(8 × L)/（B×1000 ）
Current time of the transmission time plus the current time received from monitoring unit as indicating unit, realization is used to refer to
Show the time synchronization of unit and monitoring unit.
Further, the indicating unit has data temporary storage location, when continuous several times communicate with monitoring unit it is unsuccessful
Afterwards, data are temporarily stored into the data temporary storage location, wait for next round data that the moment is reported to be transmitted to monitoring unit again.
The beneficial effects of the present invention are：1. making the data and announcement of each indicating unit of fault detector and monitoring unit
Alert synchronizing information, according to more acurrate, it is more acurrate that recording for moment occurs for failure for the data of breakdown judge；2. real using software
It is existing, ask the power supply that equipment there are more functions 3. to take into account fault detector each unit in the case where not increasing hardware cost
Topic, the realization of function do not increase power consumption substantially；4. acquisition primary side each phase load data time synchronize, can be used for it is secondary
The load data that side is read is compared to monitor whether that there are electricity stealings.
Description of the drawings
Fig. 1 is the principle of the present invention figure.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Power line failure indicator with time synchronization function, including indicating unit 2, monitoring unit 1, the monitoring
Unit 1 has clock circuit, power line failure indicator main working process as follows：
1）Indicating unit 2 collects load data in real time, carries out ground connection or analysis of Short Circuit Fault, and discovery has ground connection or short circuit
After failure, it is immediately performed board turning instruction action, while fault warning information is transferred to monitoring unit 1.
2）Indicating unit 2 is regular（General 15 minutes primary）Send load data to monitoring unit 1.
3）Monitoring unit 1 is communicated by communication modes such as GPRS/3G/4G/FDDI with main station system 3.Main station system 3 can be to
Monitoring unit 1 sends out data test introduction or the timed task of configuration requires 1 active reporting data of monitoring unit.It is accused when breaking down
When alert event, monitoring unit 1 also can actively send a warning message to main station system 3.
The indicating unit 2 has real-time clock register, the real-time clock register pair indicating unit 2
The interruption of MCU carries out accumulating operation to realize time clock feature；
The time that the acquisition time of measurement data or alarm event occur is issued monitoring unit 1 by the indicating unit 2, when
Monitoring unit 1 receives the judgement for judging the time received and whether being less than the time of making the product after data into row format, when
It was found that abandoning measurement data when the time received is wrong without storing, it is changed to send a fault event data packet, with monitoring
The time identifier of oneself is the fault time of the packet when unit 1 analyzes data；When the time of reception is correct, by receiving time with
Data are stored together；
Data including the current time of monitoring unit are sent back to indicating unit 2, indicating unit by monitoring unit 1 again
After 2 receive data, according to communication baud rate B and data length L, information transmission time is calculated：
Transmission time (millisecond)=(8 × L)/（B×1000 ）
It uses transmission time to add from the current time that monitoring unit 1 receives as the current time of indicating unit 2, realizes
The time synchronization of indicating unit 2 and monitoring unit 1.When powering on for the first time, real-time clock register is a wrong time, is needed
After synchronous with monitoring unit 1, just become the correct time.
The time that indicating unit 2 transmits is that occurs for data rather than current time the moment, and after synchronizing, the time is very accurate,
Therefore, when leading to communication delay situations such as communication re-transmission occurs, the time error for the data that monitoring unit 1 receives will not occur
Variation, i.e., the delay that is not communicated and have an impact.It is analyzed with the data of multiple unit synchronizations, it will accurately very
It is more.For example calculate three-phase load unbalance degree index.
Indicating unit 2 described in the present embodiment has data temporary storage location, when continuous several times communicate not with monitoring unit 1
After success, data are temporarily stored into the data temporary storage location, wait for next round data that the moment is reported to be transmitted to monitoring unit 1 again.
Because monitoring unit 1 uses solar cell and storage battery power supply, night that may stop because of energy content of battery deficiency under normal circumstances
Only work, after resuming work to daytime, the supplement of indicating unit 2 uploads data, because the data record of transmission carries temporal information,
Monitoring unit 1 is set to keep the complete of data record.Certainly, because of communication disruption, do not calibrate in time, fill the record of biography when
Between error can be relatively large.
Claims (2)
1. the power line failure indicator with time synchronization function, including indicating unit, monitoring unit, the monitoring unit
With clock circuit, it is characterised in that：The indicating unit has real-time clock register, the real-time clock register
Accumulating operation is carried out to realize time clock feature to the interruption of the MCU of indicating unit；
The time that the acquisition time of measurement data or alarm event occur is issued monitoring unit by the indicating unit, when monitoring is single
Member receives the judgement for judging the time received and whether being less than the time of making the product after data into row format, when finding to receive
Time it is wrong when abandon measurement data without store, be changed to send a fault event data packet, analyzed with monitoring unit
The time identifier of oneself is the time of the packet when data；When the time of reception is correct, receiving time is stored together with data；
Data including the current time of monitoring unit are sent back to indicating unit by monitoring unit again, and indicating unit receives number
According to rear, according to communication baud rate B and data length L, information transmission time is calculated：
Transmission time (millisecond)=(8 × L)/（B×1000 ）
It uses transmission time to add the current time received from monitoring unit as the current time of indicating unit, realizes that instruction is single
The time synchronization of member and monitoring unit.
2. the power line failure indicator with time synchronization function as described in claim 1, it is characterised in that：The finger
Show that unit has data temporary storage location, after continuous several times communicate unsuccessful with monitoring unit, data are temporarily stored into the data
In temporary storage location, wait for next round data that the moment is reported to be transmitted to monitoring unit again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126655.2A CN105721219B (en) | 2016-03-07 | 2016-03-07 | Power line failure indicator with time synchronization function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126655.2A CN105721219B (en) | 2016-03-07 | 2016-03-07 | Power line failure indicator with time synchronization function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105721219A CN105721219A (en) | 2016-06-29 |
| CN105721219B true CN105721219B (en) | 2018-09-07 |
Family
ID=56156466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610126655.2A Active CN105721219B (en) | 2016-03-07 | 2016-03-07 | Power line failure indicator with time synchronization function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105721219B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051704A (en) * | 2017-12-14 | 2018-05-18 | 北京煜邦电力技术股份有限公司 | A kind of fault detector and its network-building method |
| CN109298362B (en) * | 2018-09-10 | 2020-10-16 | 国网江苏省电力有限公司电力科学研究院 | Three-phase synchronization precision testing method, device and system for distribution line fault indicator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3888910B2 (en) * | 2002-02-26 | 2007-03-07 | リンナイ株式会社 | Gas hot air heater |
| CN101515831A (en) * | 2008-02-22 | 2009-08-26 | 杭州华三通信技术有限公司 | Method, system and device for time synchronous transfer |
| CN103995214A (en) * | 2014-04-15 | 2014-08-20 | 刘骐畅 | Overhead line intelligent fault positioning processing system and method thereof |
-
2016
- 2016-03-07 CN CN201610126655.2A patent/CN105721219B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3888910B2 (en) * | 2002-02-26 | 2007-03-07 | リンナイ株式会社 | Gas hot air heater |
| CN101515831A (en) * | 2008-02-22 | 2009-08-26 | 杭州华三通信技术有限公司 | Method, system and device for time synchronous transfer |
| CN103995214A (en) * | 2014-04-15 | 2014-08-20 | 刘骐畅 | Overhead line intelligent fault positioning processing system and method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 电力时间同步系统在线监测方法;李信，藤玲等;《中国电力》;20151231;正文全文 * |
| 电力线路故障指示器的发展现状和趋势;王彦彪，张小江;《科技资讯》;20150331;正文全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105721219A (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106655487B (en) | A kind of comprehensive early warning of distribution network intelligent and safe and control system | |
| EP2985613B1 (en) | Method and system for detecting and locating single-phase ground fault on low current grounded power-distribution network | |
| CN203350392U (en) | Fault locating system for high tension transmission line | |
| CN102590700A (en) | Method and device for quickly locating faults of overhead line on basis of time synchronization | |
| CN107238774B (en) | State monitoring system for drop-out fuse | |
| CN103490505A (en) | Method for testing in-station SOE through substation measuring and control device telecommand quantity testing system | |
| CN204758748U (en) | Cubical switchboard intelligent integrated monitoring devices | |
| CN103217566A (en) | Current online monitoring integrated system of on-load tap changer | |
| CN108872910B (en) | Timing system and method for online verification of power quality monitoring device | |
| CN101923138A (en) | AT (Autotransformer) line fault ranging system with built-bin GPS (Global Positioning System) module | |
| CN104467186A (en) | Full network fault recording data parameter-free accurate synchronizing method | |
| KR101698227B1 (en) | Apparatus for time synchronization of substation automation system | |
| CN103066693A (en) | Intelligent terminal for power distribution network | |
| CN109254221A (en) | A kind of data processing method of intelligent substation | |
| CN108089094A (en) | Ring network power supply cable fault positioning system and method based on cloud platform | |
| CN105721219B (en) | Power line failure indicator with time synchronization function | |
| CN207882374U (en) | A kind of transient state recording type fault detector | |
| CN202794300U (en) | Online monitoring device of power transmission line lightening arrester | |
| KR101452979B1 (en) | Fault recorder having fault localization function using accident data of both ends in power system line, fault localization system comprising the same and method for controlling the same | |
| CN109031023A (en) | A kind of current leakage detection system with tripping catch function | |
| CN102955095B (en) | Method for synchronously obtaining electric signals of any two ends of power transmission line | |
| CN107300849A (en) | The measuring method and on-line monitoring system of a kind of precision clock | |
| CN104734338A (en) | Clock monitoring method, device and system of transformer substations | |
| CN103645417B (en) | A kind of pure internet access-prepositioneddata data acquisition method | |
| CN103576014A (en) | Clock monitoring device and monitoring method of transformer substation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 315300 Ningbo, Cixi, ancient street, the streets of science and technology road, No. 711 Applicant after: Ningbo Canaan intelligent electrical Limited by Share Ltd Address before: 315300 Ningbo, Cixi, ancient street, the streets of science and technology road, No. 711 Applicant before: Ningbo Jianan Electronics Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |