CN211878104U - Distributed power transmission line state monitoring system - Google Patents
Distributed power transmission line state monitoring system Download PDFInfo
- Publication number
- CN211878104U CN211878104U CN201921400285.2U CN201921400285U CN211878104U CN 211878104 U CN211878104 U CN 211878104U CN 201921400285 U CN201921400285 U CN 201921400285U CN 211878104 U CN211878104 U CN 211878104U
- Authority
- CN
- China
- Prior art keywords
- module
- transmission line
- station
- power transmission
- power
- 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.)
- Expired - Fee Related
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 44
- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
- 230000006854 communication Effects 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000001914 filtration Methods 0.000 claims description 5
- 230000007175 bidirectional communication Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 12
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000003703 image analysis method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a distributed transmission line state monitoring system, including collection system, RTK reference station and ground monitoring station, collection system and ground monitoring station both-way communication are connected, RTK reference station and ground monitoring station both-way communication be connected; the acquisition device is arranged on the power transmission line and used for acquiring data in real time; the RTK reference station is used for obtaining differential calibration information; and the ground monitoring station is used for receiving the data sent by the acquisition device and the RTK reference station. The utility model discloses a big dipper satellite navigation terminal that distributes at wire multiple spot carries out direct accurate measurement to the multiple spot spatial position on the transmission line and obtains the spatial position of wire multiple spot to in time transmit the sensor data and the characteristic point coordinate of gathering to the surveillance center through wireless network; the working state of the power grid can be monitored on line, the prediction maintenance is realized, and the power supply quality and the operating efficiency of the power system are improved.
Description
Technical Field
The utility model belongs to the technical field of transmission line monitoring, especially, relate to a distributed's transmission line state monitoring system.
Background
With the development of electric power systems in China and the construction of high-voltage and extra-high-voltage transmission lines, the mileage of the transmission lines is longer and longer, and the transmission lines gradually become one of the most important components of assets in power grids. Meanwhile, the distribution of the power transmission lines is wide, overhead lines are arranged in urban cities and towns and mountains, the landform is complex, and the power transmission lines have the characteristics of multiple points, wide area, long line, exposed field and frequent factors easily influenced by external force due to severe natural environment.
With the continuous improvement of the technical requirements on the line operation, the control of the line state is the premise of effectively analyzing the faults and the abnormity of the power transmission line and taking effective measures. For example, ice coating is one of the more common and serious consequences in the failure of all transmission lines. Icing overload can be generated when the line is iced to a certain degree, sag is increased due to serious overload, and the distance between the lead and the ground is reduced, so that flashover accidents can possibly occur. After the overhead transmission line conducting wire is eccentrically coated with ice, the conductor can be waved under the excitation of wind. Light galloping people can generate flashover and tripping, heavy people can generate hardware and insulator damage, strands of wires are broken, the wires are broken, pole tower bolts are loosened and fall off, and even the tower falls down, so that major power grid accidents are caused. Under the action of strong wind, short circuit tripping, burning and even wire burning accidents can be caused due to insufficient distance between the wires or between the wires and the ground. The phenomenon of the fault is that the change of specific load and stress leads to the change of sag and stress state physically, so that the real-time monitoring of the sag, windage yaw and specific load of the line becomes important.
With the development of smart power grids, the online monitoring technology of power transmission lines has been developed greatly in recent years, but the condition of inaccurate test generally exists for monitoring the aspects of conductor sag, windage yaw, specific load and the like, and the operation and maintenance work of the lines cannot be effectively guided. Particularly, for the situations of line galloping, windage yaw under strong wind and ice coating, the prior art means cannot accurately grasp accurate information such as the real-time position state and the stress state of the line. At present, a tension measurement method, a Beidou single-point measurement method, an image analysis method and the like are mainly used for monitoring sag, windage yaw and specific load of a line.
1) The traditional positioning technology adopts GPS technology. GPS was developed by the united states, so we may be hampered by their use. Secondly, the GPS has too large scale and too high cost, can only be used as navigation but cannot realize the communication function;
2) in the prior art, the Beidou single-point measurement technology can only carry out static measurement on the sag of the power transmission line in a windless environment, cannot measure windage yaw, and cannot measure mechanical parameters such as specific load and tension. In practical application, the monitoring of the line is more important in a windy environment;
3) in the prior art, the tension measurement measures the change of mechanical parameters such as tension and the like through a mechanical sensor, the sag of a line is pushed according to design parameters and empirical values, and the measured data is not real-time position data of the line but indirect data such as wire tension, vibration frequency, wind deflection angle, inclination, insulator inclination angle and the like, so that the measurement of parameters such as the sag is inaccurate;
4) in the prior art, due to the influence of the precision of the sensor and the environment, the monitoring precision is poor, and meanwhile, the maintenance and the calibration are inconvenient.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a distributed power transmission line status monitoring system to solve the above mentioned problems in the background art.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a distributed power transmission line state monitoring system comprises a collecting device, an RTK reference station and a ground monitoring station, wherein the collecting device is in bidirectional communication connection with the ground monitoring station, and the RTK reference station is in bidirectional communication connection with the ground monitoring station;
the acquisition device is arranged on the power transmission line and is used for acquiring data in real time;
the RTK reference stations are respectively arranged on hanging points at two ends of the power transmission line and used for obtaining differential calibration information;
and the ground monitoring station is used for receiving the data sent by the acquisition device and the RTK reference station.
Furthermore, the acquisition device comprises a first control module, a Beidou positioning module, a first communication module, an interface and power supply module and a temperature sensor; the first control module is respectively connected with the Beidou positioning module, the first communication module and the temperature sensor, and the interface and the power supply module are used for supplying power to the first control module, the positioning module and the first communication module.
Furthermore, the acquisition device further comprises a tension sensor, and the tension sensor is connected with the first control module.
Further, the RTK base station comprises a Beidou differential module, a second control module, a second communication module and an interface and power supply module; the second control module is respectively connected with the second communication module and the Beidou differential module, and the interface and the power module are used for supplying power to the second control module, the Beidou differential module and the second communication module.
Furthermore, the interface and power module's circuit is including getting electric coil, rectifier unit, voltage stabilizing unit, the filtering unit that connects gradually, the rectifier unit includes 4 rectifier diodes, the filtering unit includes filter capacitor and inductance.
Furthermore, the ground monitoring station comprises a communication server, a gateway and a processing server, wherein the communication server, the gateway and the processing server are sequentially connected, and the processor server is connected with an external user terminal.
Compared with the prior art, a distributed transmission line state monitoring system and method have the following advantages:
(1) the utility model adopts the Beidou satellite navigation and positioning technology to replace the prior GPS technology to monitor the power transmission line through the Beidou, and the satellite navigation and positioning terminal combines the network RTK differential technology to directly and accurately measure the space coordinate of the line characteristic point and transmits the space coordinate to the monitoring center through the wireless network, thereby solving the difficult problems of real-time and accurate monitoring of the prior sag, stress, windage yaw and specific load;
(2) the utility model discloses a wireless network in time transmits the sensor data who gathers to the surveillance center, and the surveillance center carries out storage analysis to data to form complete overhead line sag, stress, windage yaw on-line monitoring system. The problems of low power consumption, miniaturization and integration of the Beidou antenna/4G antenna and an online terminal are solved.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic diagram of a distributed power transmission line state monitoring system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a system topology according to an embodiment of the present invention;
fig. 3 is a schematic view of a principle of a collecting device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a RTK base station according to an embodiment of the present invention;
fig. 5 is a circuit diagram of an interface and a power module according to an embodiment of the present invention.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the present invention provides a distributed power transmission line status monitoring system, wherein,
high accuracy wire position real-time acquisition device: the Beidou positioning module receives the satellite navigation signals and the network RTK differential information transmitted by the wireless communication module, completes coordinate measurement of the installation point, and transmits the measurement information to the ground monitoring station through the wireless transmission module.
An RTK reference station: and the base station receives the position information sent by the satellite, and compares the signal with the known accurate position of the base station to obtain the differential calibration information of the base station. The base station sends the information to the ground monitoring station to obtain differential calibration information, wherein the differential calibration information is mainly used as a correction signal of the positioning information of the mobile station. When the mobile station receives the differential calibration information sent by the network, the mobile station obtains the accurate position information of the mobile station by calibrating with the signal sent by the satellite obtained by the mobile station, and then the accurate position information is output to the terminal. The measurement accuracy of the system can thereby be improved.
A ground monitoring station: the method mainly completes equipment management and communication network maintenance, calculates parameters such as circuit sag, windage yaw, specific load and stress by using the existing method, and simultaneously visually displays the result.
The overall system topology is intended to be as shown in FIG. 2;
the collection system is by big dipper orientation module, first wireless communication module, first control module, the interface comprises with power module, as shown in fig. 3, wherein big dipper orientation module receives satellite navigation signal and the network RTK differential information of wireless communication module transmission, accomplish the coordinate measurement of mounting point, and transmit the measurement information ground monitoring station through first wireless transmission module, first control module main function is to carrying out the state acquisition and the control of front end storage and unit to the measurement information, the interface acquires the electric energy from the circuit through the induction electricity-taking mode with power module's function, and supply other units to use through steady voltage etc..
Wherein, big dipper orientation module adopts the model to be the mainboard: BD930, antenna: AV37, first wireless communication module adopts the model to be USR-G781, first control module adopts the model to be DPB3500-01, the connection between the module belongs to the conventional connected mode in this field, model and connected mode are not the innovation point of this scheme, as long as can realize data transmission can, interface and power module adopt and get the electricity from the electrified line response, then the scheme of primary rectification, secondary voltage stabilization, this scheme has the characteristics that the reliability is high, output voltage is stable, the ripple is little. The whole module consists of a power-taking coil, a rectifier diode, a voltage stabilizing chip, a filter capacitor and an inductor, and the circuit of the specific device is connected as shown in the following figure 5.
The device also comprises a temperature sensor and a tension sensor, wherein the temperature sensor is used for monitoring the working state of the device. Temperature sensor, force transducer all adopt current product, and the connection with first control module belongs to the conventional connected mode in this field, and model and connected mode are not the innovation point of this scheme, as long as can realize data transmission can.
The RTK base station comprises a Beidou differential module, a second control module, a second communication module and an interface and power supply module; the second control module is respectively connected with the second communication module and the Beidou differential module, the interface and the power module are used for supplying power to the second control module, the Beidou differential module and the second communication module, as shown in fig. 4, and the interface and the power module are as shown in fig. 5. The Beidou differential module adopts a BD3930 model, the second control module adopts a DPB3500-01 model, the second wireless communication module adopts a USR-G781 model, the connection between the modules belongs to a conventional connection mode in the field, and the model and the connection mode are not innovation points of the scheme as long as data transmission can be realized.
The utility model discloses use big dipper multiple spot synchronous measurement, hang near some reference station of respectively installing in wire both sides, the mobile station is installed at the circuit middle part. And the base station receives the position information sent by the satellite, and compares the signal with the known accurate position of the base station to obtain the differential calibration information of the base station. The base station sends this information to the processing center to obtain differential calibration information, which is primarily a correction signal as mobile station positioning information. When the mobile station receives the differential calibration information sent by the network, the accurate position information of the mobile station is obtained through calibration with a signal sent by a satellite obtained by the mobile station, then the accurate position information is output to a terminal, three-point coordinates of a line are obtained, data are transmitted to a ground monitoring station, equipment management and communication network maintenance are completed, parameters such as line sag, windage yaw, specific load and stress are calculated by the existing method, meanwhile, the result is visually displayed, and meanwhile, the result is visually displayed.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a distributed transmission line state monitoring system, includes collection system, RTK reference station and ground monitoring station, its characterized in that: the acquisition device is in bidirectional communication connection with a ground monitoring station, and the RTK reference station is in bidirectional communication connection with the ground monitoring station;
the acquisition device is arranged on the power transmission line and is used for acquiring data in real time;
the RTK reference stations are respectively arranged on hanging points at two ends of the power transmission line and used for obtaining differential calibration information;
and the ground monitoring station is used for receiving the data sent by the acquisition device and the RTK reference station.
2. The distributed power transmission line state monitoring system according to claim 1, characterized in that: the acquisition device comprises a first control module, a Beidou positioning module, a first communication module, an interface and power supply module and a temperature sensor; the first control module is respectively connected with the Beidou positioning module, the first communication module and the temperature sensor, and the interface and the power module are used for supplying power to the first control module, the Beidou positioning module and the first communication module.
3. The distributed power transmission line state monitoring system according to claim 2, characterized in that: the acquisition device further comprises a tension sensor, and the tension sensor is connected with the first control module.
4. The distributed power transmission line state monitoring system according to claim 2, characterized in that: the RTK reference station comprises a Beidou differential module, a second control module, a second communication module and an interface and power supply module; the second control module is respectively connected with the second communication module and the Beidou differential module, and the interface and the power module are used for supplying power to the second control module, the Beidou differential module and the second communication module.
5. The distributed power transmission line state monitoring system according to claim 4, wherein: the interface and power module circuit comprises a power taking coil, a rectifying unit, a voltage stabilizing unit and a filtering unit which are sequentially connected, wherein the rectifying unit comprises 4 rectifying diodes, and the filtering unit comprises a filtering capacitor and an inductor.
6. The distributed power transmission line state monitoring system according to claim 1, characterized in that: the ground monitoring station comprises a communication server, a gateway and a processing server, wherein the communication server, the gateway and the processing server are sequentially connected, and the processor server is connected with an external user terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921400285.2U CN211878104U (en) | 2019-08-26 | 2019-08-26 | Distributed power transmission line state monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921400285.2U CN211878104U (en) | 2019-08-26 | 2019-08-26 | Distributed power transmission line state monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211878104U true CN211878104U (en) | 2020-11-06 |
Family
ID=73240142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921400285.2U Expired - Fee Related CN211878104U (en) | 2019-08-26 | 2019-08-26 | Distributed power transmission line state monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211878104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501612A (en) * | 2019-08-26 | 2019-11-26 | 北京天御科技有限公司 | A kind of distributed power transmission state monitoring system and method |
-
2019
- 2019-08-26 CN CN201921400285.2U patent/CN211878104U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501612A (en) * | 2019-08-26 | 2019-11-26 | 北京天御科技有限公司 | A kind of distributed power transmission state monitoring system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101922924B (en) | Transmission line information detecting system, method and GPS mobile station device | |
| CN201540177U (en) | Information acquisition device for power transmission line | |
| CN108051708A (en) | A kind of transient state recording type fault detector | |
| CN110501612A (en) | A kind of distributed power transmission state monitoring system and method | |
| CN103728511B (en) | D.C. high voltage transmission grounded screen state on-line monitoring system and monitoring method | |
| CN105137286A (en) | Power transmission line lightning stroke monitoring device and lightning protection level assessment method | |
| CN107277847B (en) | Antenna attitude measurement system and method based on NB-IoT transmission mode | |
| CN107340432A (en) | Grounding resistance data acquisition and analysis system based on wireless measurement module | |
| CN104655182A (en) | Monitoring method for monitoring state of overhead power transmission line by using satellite precise positioning system | |
| CN107478909A (en) | A kind of smart grounding resistance on-line computing model and its system | |
| CN105953762A (en) | Power transmission line modeling method used for net distance measurement and distance measurement device thereof | |
| CN108254655A (en) | A kind of mixed line fault deciding field device | |
| CN109884400A (en) | Transmission tower ground resistance on-Line Monitor Device based on double measurement patterns | |
| CN211878104U (en) | Distributed power transmission line state monitoring system | |
| CN114111891A (en) | High-voltage power transmission channel conductor and spanning object safety distance detection early warning system | |
| CN210438843U (en) | Electric potential monitoring system | |
| CN116780758A (en) | On-line monitoring system and method for multi-sensor data fusion of power transmission line | |
| CN114384371A (en) | Service center, monitoring terminal and system for power line fault detection | |
| CN205561786U (en) | Super high voltage transmission wire arc intelligent measuring device that hangs down | |
| CN109557357A (en) | Contactless voltage surveys recording device, system and method | |
| CN210955428U (en) | Collapse combined type sensing monitoring early warning instrument | |
| CN102645616A (en) | Fault addressing method for transmission line | |
| CN209446102U (en) | Multiclass intelligent transformer monitors system | |
| CN112698106A (en) | Grounding impedance testing device and method | |
| CN208520945U (en) | A kind of mixed line fault deciding field device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201106 |