CN2715413Y - Power network electricity transmission line fault monitoring system - Google Patents
Power network electricity transmission line fault monitoring system Download PDFInfo
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- CN2715413Y CN2715413Y CNU2003201223803U CN200320122380U CN2715413Y CN 2715413 Y CN2715413 Y CN 2715413Y CN U2003201223803 U CNU2003201223803 U CN U2003201223803U CN 200320122380 U CN200320122380 U CN 200320122380U CN 2715413 Y CN2715413 Y CN 2715413Y
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Abstract
The utility model relates to a power network electricity transmission line fault monitoring system, principally, applied to a failure testing of the eletricity transmission line in an electrical power system, comprising two big parts: a data collection terminal and fault monitoring supporting system. The data collection terminal is arranged on the pole tower used for erecting the electricity transmission line. The data collected by the data collection terminal is sent to the master station of a fault monitoring support system by the way of sending message through mobile communication network. The information transmitted by the mobile communication network is received by the master station to finish alarming, displaying, system diagnosing the maintenance, the enquiring, the data transferring, and the printing and other series of work of the electricity transmission line fault monitoring system. Power network electricity transmission line fault monitoring system has the obvious advantages that the speed testing of the electricity transmission line is fast, the positioning is exact and reliable, the operation is convenient, and a great deal of human power and material power can be saved.
Description
Technical field
The utility model relates to a kind of grid power transmission line fault on-line monitoring system, mainly is applicable to the fault detect of transmission line in the electric power system.
Background technology
Transmission line is the lifeblood of electric power system, and it is undertaking the important task that transmits electric energy.Expansion day by day along with the electric power system scale, high voltage, macro-energy, long-distance transmission line increasing, in case transmission line breaks down, influence to safe operation, industrial and agricultural production and people's daily life of electric power system is also more and more big, therefore, the safe operation of guaranteeing transmission line is very important.
High pressure on the electrical network and extra high voltage network are very long, and what have reaches the hundreds of kilometer, in addition have reach thousands of kilometers.The region of its distribution is wide again.Insulator on the transmission line is exposed in the atmosphere for a long time, be subjected to the influence of weather and environmental condition, can be under the effect of extraneous factor (as at thunderbolt, mist, rain, filth etc.) flashover takes place, cause the generation of transmission line malfunction, these are unavoidable problem in the operation of power networks.
After transmission line breaks down, how to search the fault point fast, eliminate power supply recovered from failure, this is the big problem that operation of power networks is paid close attention to by people so far always.
Traditional is to rely on line walking to search the fault point, then fault is handled.This mode had been not only time-consuming, but also effort, and was difficult to guarantee electric power system and transmission line safe and stable operation, and people solve the problems referred to above seeking a more effective mode for this reason.
The existing fault localization method has several: impedance method, accident analysis method (power frequency parametric method), traveling wave method etc., though research and development through decades, the precision of fault locator improves a lot, but all there is a common problem: the physical quantity when promptly measuring transmission line parameter and fault, position by calculating, and measurement always has error, and therefore the result of location just has error, and this error tends to make line walking not have the result in the practice.
Summary of the invention
The utility model be for to the fault of power system transmission line fast, accurately, reliably inerrably detect and locate, a kind of grid power transmission line fault monitoring system is provided.
Transmission line malfunction monitoring system of the present utility model mainly comprises two major parts.
First is a data collection station, mainly comprises: the data terminal electric power system of fault measuring unit, data acquisition control unit, wireless transmission linkage unit and solar energy;
Second portion malfunction monitoring back-up system mainly comprises: the master station that has the communication network dome module, distributed-network monitoring platform, fault alarm inquiry system and the user's maintenance system that connect with mobile communications network.
Fault measuring unit in the said data collection station mainly comprises: fault current detecting sensor and signal latch.
The course of work that transmission line malfunction of the present utility model detects is: at first the data collection station in the utility model monitoring system is placed on the shaft tower that erects power transmission lines.When transmission line normally moved, without any electric current, the fault current detecting sensor output signal in its fault measuring unit was zero or approaching zero on the shaft tower.In case break down, as: insulator generation flashover on the shaft tower, hit transmission line or shaft tower, fault current can flow to the earth through shaft tower, the fault current detecting sensor can detect the fault current that flows through shaft tower, (current value of considering thunder-strike current is big through signal latch, time is short again, and signalization latch) the maximum fault current value is latched after, deliver to the wireless transmission linkage unit through the data collection station collection, send transmission line malfunction association message information by mobile communications network with note at once.Message reaches the malfunction monitoring back-up system by mobile communications network.Finish the reception and the transmission of information by the master station of malfunction monitoring back-up system.And by warning, demonstration, system diagnostics, maintenance, inquiry, data that the master station of malfunction monitoring back-up system is finished transmission line malfunction monitoring pass on, the needed a series of data of user such as printing.
The significant advantage of monitoring system of the present utility model is:
Utilize mobile communications network to carry out message transmission up and down with note between data collection station and the master station, information uploading can be finished about about 20 seconds.Therefore, in case transmission line breaks down, the master station of the utility model malfunction monitoring back-up system just can be told transmission line malfunction the operation and the relevant personnel in time, exactly in less than 30 seconds time.Thereby alleviated the burden that line walking workman patrolman does greatly, both can save great amount of manpower and material resources, accelerated the location of failure point of power transmission line, can organize manpower fast again, rushed to repair, restored electricity as early as possible, breakdown loss is minimized.In addition, whether the size of institute's record trouble electric current when transmission line breaks down can help operation and maintainer's analytical equipment to be hit and damage behind the rush of current, when overhauls, and these can improve the security reliability that transmission line moves.Therefore, the utility model transmission line malfunction on-line monitoring system not only has a very important role to the safe and reliable power supply of electric power system, but also can bring huge social and economic benefit to electric power system.
The utility model monitoring system major technique characteristics are:
Transmission line malfunction detection technique (big electric current, fast signal latch);
The power pack of data collection station (under the no condition of power supply);
The fault data of data collection station collection in time is uploaded to master station (utilizing GSM (global network mobile system) wireless network) fast;
The security reliability of data collection station computer hardware (adapting to outdoor application);
The master station of malfunction monitoring back-up system is used operation control management system (system configuration, configuration, operational management, maintenance etc.).
1) adopt in the fault measuring of the present utility model unit big electric current (electric current be 0～10KA) at a high speed (response speed reaches 2.6 μ s) sampling sensor and have the fast signal latch as the fault current detecting sensor.
Generally, the sampling period of power frequency fault current is a 3-6 cycle (50HZ), and the time of thunder-strike current is very short, generally has only about 2.6 μ S, and this just requires the fault current detecting sensor to have fast reaction, the function of fast recording.So the utility model adopts has signal latch and big electric current high-speed sampling transducer can reach this requirement.
2) electric power system of the utility model data collection station is that employing is solar powered, and collection and wireless transmit/receive units are little power consumptions, because circuit such as collection and wireless receiving and dispatching are mounted in the open air, under 500KV transmission line or shaft tower, can not find power supply, this just requires a power supply one's very own to finish the electric power system of collection and data transmit-receive, and the power consumption of electricity consumption part is the smaller the better.The operating current of the utility model data collection station even can be controlled in below the 1mA about 10mA.The utility model uses solar powered can the operation out of doors over a long time (all the time according to more than the week).
3) with the connecting of mobile communications network, the note exchange fast, reliable.
Getting in touch between data collection station of the present utility model and the master station is to pass through mobile communications network.Network coverage face is big, and the blind area is less.Because under the situation long at transmission line, that the base station is many, bulk information can cause information dropout for a short time because of buffering area when transmitting.So the utility model adopts master station and the direct coupled mode of mobile communications network, can overcome the problem in the above-mentioned technology formerly, accomplishes transceive data quickly and accurately.
4) master station of the utility model malfunction monitoring back-up system provides good user's operation, use interface, can help the user to finish system configuration, alarm information processing, data query, rigging up and debugging, system maintenance etc.
5) master station of the present utility model has been developed a cover complete device communication protocol (under the GSM mode), through practicing, has proved that communication protocol can the operation of safety and precise ground.
Description of drawings
Fig. 1 is that the utility model monitoring system is installed schematic diagram in actual applications.
Fig. 2 is the structural representation that the utility model monitoring system two large divisions constitutes.
Fig. 3 is the structural representation of data collection station in the utility model monitoring system.
Fig. 4 is the connection schematic diagram of the utility model data collection station running.
Embodiment
Further specify the structure of the utility model monitoring system below in conjunction with accompanying drawing.
Fig. 1 is that the utility model Application of Monitoring System is to on-the-spot on the spot schematic diagram.As shown in fig. 1, the data collection station 2 in the utility model monitoring system places on the shaft tower 1 that erects power transmission lines, and the master station 5 of malfunction monitoring back-up system places the situation of the data collection station 2 on the shaft tower 1 by mobile communications network 3 monitorings.Master station 5 is informed user side 4 by mobile communications network 3 to send way of short messages again.When transmission line normally moved, without any electric current, data sampling terminal 2 only detected terminal equipment by designing requirement on the shaft tower 1, and by the time value reporting equipment self check situation message information of setting.In case break down, the fault current detecting sensor can detect the fault current that flows through on the shaft tower 1, sends the message information of transmission line malfunction by mobile communications network with way of short messages, delivers to master station 5.By master station 5 finish information reception, handle and be sent to user side 4.Constitute the monitoring system of transmission line malfunction Rapid Alarm thus.
The feature that just more is clear that the utility model monitoring system structure shown in Figure 2.The utility model monitoring system comprises the two large divisions: data collection station 2 and malfunction monitoring back-up system.Place the data collection station 2 on the shaft tower 1 to comprise.Fault detection unit 201, data acquisition control unit 202 and wireless transmission linkage unit 203, wherein wireless transmission linkage unit 203 connects with mobile communications network 3.Communication network dome module 501 on the master station 5 of malfunction monitoring back-up system connects with mobile communications network.Therefore, when transmission line normally moved, without any electric current, the fault current detecting sensor output signal in the fault detection unit 201 was zero or approaching zero on the shaft tower 1.In case break down, as; Insulator generation flashover on the shaft tower 1, hit circuit or shaft tower, fault current can flow to the earth through shaft tower 1, the fault detect current sensor can detect the fault current that flows through on the shaft tower 1, signal latch latchs the back with the maximum fault current value (can be at short notice, store five fault messages continuously) deliver to the wireless transmission linkage unit through the collection of data acquisition control unit, send line fault association message information by mobile communications network with way of short messages at once.And message deposited the personal data storehouse by user's features such as SPID, initiatively remove to read message information, and finish associative operations such as warning, data record on request by the master station 5 of malfunction monitoring back-up system through mobile communications network.
Shown in Figure 3 is the concrete structure of the data collection station 2 of the utility model monitoring system.Data collection station 2 mainly comprises: fault measuring unit 201, the data acquisition control unit 202 that links to each other with fault measuring unit 201 outputs, the wireless transmission linkage unit 203 that links to each other with data acquisition control unit 202 outputs.The data terminal electric power system 204 that comprises the solar energy of solar cell 2041, solar charging controller 2042 and batteries 2043 in addition.
Said data acquisition control unit 202 contains data acquisition module 2021 (AD-10) and controller (CPU) 2022.
Said wireless transmission linkage unit 203 comprises radio receiving transmitting module 2031 and wave point 2032.Use the RS485/232 interface in the present embodiment.
Structure as Fig. 3; when transmission line malfunction takes place; the fault current of shaft tower of flowing through makes the fault current detecting sensor in the fault measuring unit 201 produce output signal; deliver to data acquisition control unit 202 through protection with after latching; data acquisition control unit 202 is finished relevant data via controller (CPU) 2022 control data and is debated after the reason of other places again through wave point 2032 (RS-232/RS-485 interface) and radio receiving transmitting module 2031 as employing GSM-MODEM module after finishing the A/D data transaction, send transmission line malfunction association message information by mobile communication network with short message mode.
Controller (CPU) 2022 is selected strong, the low-power consumption technical grade chip of antijamming capability for use.The main functions such as internal control, data acquisition, fault data storage and scheduling that realize.And have the fault self-recovering function, improve the antijamming capability and the reliability of data collection station greatly.Data collection station have internal clocking and to the time function, all have time tag in the data information transfer process, these can remedy the data delay of SMS communication process.
Said data terminal electric power system 204 is a solar cell system, and it contains solar cell 2041, solar charging controller 2042 and batteries 2,043 three parts.Because open-air nothing power supply environment, data collection station can not have a power failure again.Therefore, adopt solar energy and batteries that the additional energy is provided.Under sunshine good situation, the energy that obtains after solar cell 2041 daylightings through solar charging controller 2042 to batteries 2043 chargings, to guarantee the power-supply system operate as normal.In addition, system also is responsible for the voltage of batteries is carried out sampling monitoring, and can transmit the supply voltage relevant information to master station at any time, prevents to influence because of dead electricity the operate as normal of data collection station.
The running that shown in Figure 4 is data collection station 2 is concrete and the concrete structure of fault measuring unit 201.Said fault measuring unit 201 mainly comprises fault current detecting sensor 2011, and the overvoltage crowbar 2012 that is connected with fault current detecting sensor 2011 outputs, the signal latch 2013 that links to each other with overvoltage crowbar 2012 outputs are differentiated and output circuit 2014 with the signal that links to each other with the signal latch output.Data acquisition control unit 202 links to each other with signal latch 2013, signal discriminating and output circuit 2014 and radio receiving transmitting module 2031.By solar charging controller 2042 and batteries 2043 power supplies.
Said signal latch 2013 contains the fault category judge module.Can discern lightning fault electric current and power frequency fault current.
As above-mentioned, when transmission line normally moved, without any electric current, fault current detecting sensor 2011 output signals were zero or approaching zero on the shaft tower 1.In case break down, fault current can flow to the earth through shaft tower 1, and fault current detecting sensor 2011 can detect the fault current that flows through shaft tower 1.Fault current detecting sensor 2011 output signals are differentiated and output circuit 2014 exports data acquisition control unit 202 to by signal after the protection of overvoltage crowbar 2012 and signal latch 2013 and latching.Data acquisition control unit 202 is sent by wave point 2032 and radio receiving transmitting module 2031 after finishing the conversion of data.At once send line fault association message information by mobile communications network with note.Message transmits through mobile communications network, by the master station 5 of malfunction monitoring back-up system finish the reading of malfunction monitoring data, report to the police, the needed data of user such as demonstration, system diagnostics, maintenance, inquiry, data transmission, printing.
Said master station 5 mainly comprises: the communication network dome module 501 that connects with mobile communications network, distributed-network monitoring platform, fault alarm inquiry system and user's maintenance system.
The said communication network dome module 501 that connects with mobile communications network contains the short message receiving-transmitting processing module.So the master station of malfunction monitoring back-up system of the present utility model can promptly receive the message information that is sent with short message mode by mobile communications network by data collection station.
Said distributed-network monitoring platform is on the platform of computer operating system, the real time operating system of foundation, the data base set user's application system of unifying.
Said fault alarm inquiry system contains fault message processing module and fault current threshold settings module.Fault alarm inquiry system of the present utility model can inquire about the moon on every transmission line or season or year the shaft tower number etc. of the number of stoppages, classification, lowest high-current value fault point.For transmission line distribution design etc. provides the data of analyzing, and can search fault message quickly and accurately.For example the utility model Application of Monitoring System is in the rack of an area (Chinese East China).Comprising monitored concrete circuit, in case line failure, faulty line can glimmer on rack, has alarm sound output and information indicating simultaneously.The user can be according to prompting, understands the shaft tower number of line fault rapidly, thunder-strike current that the fault current detecting sensor is upsampled to during line fault or power current value.
Said user's maintenance system contains monitoring system operation maintenance module.User's maintenance system of the present utility model can be provided with and manage every data collection station.To the data acquisition terminal alignment time (with master station to the time), and with the mobile communications network alignment time.But the operating voltage of system's monitoring data acquisition terminal, touring its operating state of detection and cooperation Field Force debug the data acquisition terminal.Can be configured the data terminal by the user side interface, can be separately, partly or entirely the data collection station on the transmission line is configured, also can be separately, part carries out data uplink to the data collection station on the transmission line and transmit.By it, can understand the working condition of armamentarium on the transmission line, utilize this application interface can realize operation and management to armamentarium.
Claims (5)
1, a kind of grid power transmission line fault monitoring system, mainly comprise data collection station and malfunction monitoring back-up system two major parts, it is characterized in that said data collection station mainly comprises the fault measuring unit that has fault current detecting sensor and signal latch, the data acquisition control unit, the data terminal electric power system of wireless transmission linkage unit and solar energy; Said malfunction monitoring back-up system mainly comprises and has the communication network dome module that connects with mobile communications network, distributed-network monitoring platform, the master station of fault alarm inquiry system and user's maintenance system.
2, grid power transmission line fault monitoring system according to claim 1; it is characterized in that the fault measuring unit in the said data collection station mainly comprises the fault current detecting sensor; the overvoltage crowbar that is connected with fault current detecting sensor output, the signal latch that links to each other with the overvoltage crowbar output is differentiated and output circuit with the signal that links to each other with the signal latch output.
3, grid power transmission line fault monitoring system according to claim 1 is characterized in that the data acquisition control unit in the said data collection station contains data acquisition module and controller.
4, grid power transmission line fault monitoring system according to claim 1 is characterized in that the wireless transmission linkage unit (203) in the said data collection station comprises radio receiving transmitting module (2031) and wave point (2032).
5, grid power transmission line fault monitoring system according to claim 1 is characterized in that the data terminal electric power system of the solar energy in the said data collection station contains solar cell, solar charging controller and storage source group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201223803U CN2715413Y (en) | 2003-12-12 | 2003-12-12 | Power network electricity transmission line fault monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201223803U CN2715413Y (en) | 2003-12-12 | 2003-12-12 | Power network electricity transmission line fault monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN2715413Y true CN2715413Y (en) | 2005-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2003201223803U Expired - Fee Related CN2715413Y (en) | 2003-12-12 | 2003-12-12 | Power network electricity transmission line fault monitoring system |
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| CN (1) | CN2715413Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025196A (en) * | 2010-12-24 | 2011-04-20 | 江苏电力信息技术有限公司 | Service oriented architecture (SOA)-based grid equipment monitoring and failure positioning wireless system |
| CN102735989A (en) * | 2011-03-31 | 2012-10-17 | 青岛科技大学 | Mining wireless power failure indicator |
| CN103063255A (en) * | 2012-12-28 | 2013-04-24 | 北京世纪东方国铁科技股份有限公司 | Monitoring method and system of communication tower |
| CN101617233B (en) * | 2007-01-30 | 2013-06-26 | 思飞信智能电网公司 | Methods and system for utility network outage detection |
| CN104237701A (en) * | 2014-10-05 | 2014-12-24 | 廖小雄 | Industrial energy equipment safety operation monitoring-controlling and early warning device |
| CN107171439A (en) * | 2017-05-19 | 2017-09-15 | 合肥尚强电气科技有限公司 | Intelligent protection device of power transmission and transformation line |
| CN109477863A (en) * | 2016-06-13 | 2019-03-15 | 电网监控有限公司 | Method and system for the Dynamic Fault-Detection in power network |
| CN111668930A (en) * | 2020-06-04 | 2020-09-15 | 武汉汇博鸿通电气有限公司 | Power supply monitoring method and system based on CAN to 485 conversion |
-
2003
- 2003-12-12 CN CNU2003201223803U patent/CN2715413Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101617233B (en) * | 2007-01-30 | 2013-06-26 | 思飞信智能电网公司 | Methods and system for utility network outage detection |
| CN102025196A (en) * | 2010-12-24 | 2011-04-20 | 江苏电力信息技术有限公司 | Service oriented architecture (SOA)-based grid equipment monitoring and failure positioning wireless system |
| CN102025196B (en) * | 2010-12-24 | 2012-10-03 | 江苏电力信息技术有限公司 | Service oriented architecture (SOA)-based grid equipment monitoring and failure positioning wireless system |
| CN102735989A (en) * | 2011-03-31 | 2012-10-17 | 青岛科技大学 | Mining wireless power failure indicator |
| CN103063255A (en) * | 2012-12-28 | 2013-04-24 | 北京世纪东方国铁科技股份有限公司 | Monitoring method and system of communication tower |
| CN103063255B (en) * | 2012-12-28 | 2016-04-27 | 北京世纪东方国铁科技股份有限公司 | A kind of communication tower monitoring method and system thereof |
| CN104237701A (en) * | 2014-10-05 | 2014-12-24 | 廖小雄 | Industrial energy equipment safety operation monitoring-controlling and early warning device |
| CN109477863A (en) * | 2016-06-13 | 2019-03-15 | 电网监控有限公司 | Method and system for the Dynamic Fault-Detection in power network |
| CN107171439A (en) * | 2017-05-19 | 2017-09-15 | 合肥尚强电气科技有限公司 | Intelligent protection device of power transmission and transformation line |
| CN111668930A (en) * | 2020-06-04 | 2020-09-15 | 武汉汇博鸿通电气有限公司 | Power supply monitoring method and system based on CAN to 485 conversion |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |