CN203376088U - Power transmission line conductor stress and sag monitoring device - Google Patents
Power transmission line conductor stress and sag monitoring device Download PDFInfo
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- CN203376088U CN203376088U CN201320409116.1U CN201320409116U CN203376088U CN 203376088 U CN203376088 U CN 203376088U CN 201320409116 U CN201320409116 U CN 201320409116U CN 203376088 U CN203376088 U CN 203376088U
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- transmission line
- sag
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 70
- 238000012806 monitoring device Methods 0.000 title claims abstract description 16
- 239000004020 conductor Substances 0.000 title abstract 5
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 17
- 239000013307 optical fiber Substances 0.000 claims description 17
- 239000000835 fiber Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
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- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model provides a power transmission line conductor stress and sag monitoring device, belonging to the technical field of power transmission line conductor stress and sag monitoring. The technical problem to be solved is that the utility model provides a monitoring device capable of accurately measuring the power transmission line conductor stress and sag, a used technical scheme is that the power transmission line conductor stress and sag monitoring device comprises a fiber tension sensor, an ultrasonic wave generator, a first ultrasonic wave receiver, a second ultrasonic wave receiver, an inclination angle sensor, a temperature sensor, a wind speed sensor, a monitoring controller, a power transmission line base station server and a monitoring center computer. The device is suitable for the power department.
Description
Technical field
The utility model power line conductive uniaxial stress and sag monitoring device, belong to power line conductive uniaxial stress and sag monitoring device technical field.
Background technology
Overhead transmission line design, construction, the subject matter that will face in service are exactly the monitoring problem to transmission pressure stress and sag, the subtle change of wire and lightning conducter length, can cause the larger variation of the corresponding sag of wire and lightning conducter and stress, external environment, as the variation of temperature, external loads (freeze, wind blows etc.), all can cause that wire and lightning conducter elongate or shorten; These conditions cause the length of wire elongation or shortening to compare very little with the physical length of wire, but the variation of its caused conducting wire sag and stress is but quite obvious, this can reflect significantly when the construction stringing is adjusted sag, so the stress of monitoring and measuring wire and sag are highly significant.
The method that survey stress adopts at present is mainly and mounts foil gauge on wire, and foil gauge is subject to the interference of the high-intensity magnetic field that high voltage transmission line produces, the precision of this kind of method measurement is not high, additive method has the serviceability temperature obliquity sensor, coordinate image recognition technology to measure, but the method measurement data is instantaneous value, exist measuring accuracy not high, differ larger with actual value, and the operation conditions that can not reflect on the whole institute's test aircraft ceases to be busy place circuit, its measurement cost is also too expensive in addition.
The utility model content
The utility model overcomes the deficiency that prior art exists, and technical matters to be solved is: a kind of monitoring device that can accurately measure power line conductive uniaxial stress and sag is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: power line conductive uniaxial stress and sag monitoring device comprise: optical fiber pulling force sensor, ultrasonic generator, the first ultrasonic receiver, the second ultrasonic receiver, obliquity sensor, temperature sensor, air velocity transducer, monitor controller, transmission line of electricity base station server and Surveillance center's computing machine;
Described optical fiber pulling force sensor and ultrasonic generator are arranged on transmission line wire, and described ultrasonic generator is the packaged type ultrasonic generator; Described the first ultrasonic receiver and the second ultrasonic receiver are arranged on respectively on the shaft tower at transmission line wire two ends; Described obliquity sensor, temperature sensor, air velocity transducer are arranged on the shaft tower of transmission line wire together with monitor controller;
Described optical fiber pulling force sensor, ultrasonic generator, the first ultrasonic receiver and the second ultrasonic receiver all are connected with monitor controller and carry out communication by wireless network, and described obliquity sensor, temperature sensor and air velocity transducer all are connected with monitor controller; Described monitor controller also is connected with the first wireless transport module and power supply, and described transmission line of electricity base station server is connected with the second wireless transport module, and above-mentioned the first wireless transport module is connected with the second wireless transport module by wireless communication mode; Described transmission line of electricity base station server is connected with the Surveillance center's computing machine that is arranged on the power monitoring center.
Described power line conductive uniaxial stress and sag monitoring device also include the monitoring camera, and described monitoring camera is arranged on the shaft tower of transmission line wire and is connected with monitor controller.
Described transmission line of electricity base station server and Surveillance center's computing machine are connected with respectively a GPRS communication module and the 2nd GPRS communication module, and the transmission line of electricity base station server is connected by the GPRS wireless communication networks with the Surveillance center computing machine.
The beneficial effect that the utility model compared with prior art has is:
One, the utility model, by optical fiber pulling force sensor and ultrasonic receiving device, relies on computing machine by two kinds of different modes, accurately reacts on the whole stress and the sag of transmission line wire, realizes the accurate monitoring of stress and the sag of transmission line wire;
Two, the utility model utilizes optical fiber pulling force sensor monitoring power line conductive uniaxial stress can reduce electromagnetic interference (EMI), and the stress data of the transmission line wire of measurement is accurate; Utilize ultrasonic receiving device, by record multi-group data calculate its arithmetical mean can obtain one more accurate, more approach the conducting wire sag numerical value of actual value.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail:
Fig. 1 is electrical block diagram of the present utility model;
In figure: 1 is that optical fiber pulling force sensor, 2 is that ultrasonic generator, 3 is that the first ultrasonic receiver, 4 is that the second ultrasonic receiver, 5 is that obliquity sensor, 6 is that temperature sensor, 7 is that air velocity transducer, 8 is that monitor controller, 9 is that transmission line of electricity base station server, 10 is that Surveillance center's computing machine, 11 is that the first wireless transport module, 12 is that power supply, 13 is that the second wireless transport module, 14 is that a GPRS communication module, 15 is the 2nd GPRS communication module.
Embodiment
As shown in Figure 1, the utility model power line conductive uniaxial stress and sag monitoring device comprise: optical fiber pulling force sensor 1, ultrasonic generator 2, the first ultrasonic receiver 3, the second ultrasonic receiver 4, obliquity sensor 5, temperature sensor 6, air velocity transducer 7, monitor controller 8, transmission line of electricity base station server 9 and Surveillance center's computing machine 10.
Described optical fiber pulling force sensor 1 and ultrasonic generator 2 are arranged on transmission line wire, and optical fiber pulling force sensor 1 can be arranged on the shaft tower wire hitch point place of transmission line wire, measure the pulling force of hitch point place transmission line wire; Described ultrasonic generator 2 is the packaged type ultrasonic generator, and ultrasonic generator 2 can rely on gravity to move to the minimum point of transmission line wire, the i.e. point of sag maximum; Described the first ultrasonic receiver 3 and the second ultrasonic receiver 4 are arranged on respectively on the shaft tower at transmission line wire two ends, and the first ultrasonic receiver 3 and the second ultrasonic receiver 4 can receive the sonar signal that ultrasonic generator 2 sends; Described obliquity sensor 5, temperature sensor 6, air velocity transducer 7 are arranged on the shaft tower of transmission line wire together with monitor controller 8, obliquity sensor 5 also can be arranged on the shaft tower wire hitch point place of transmission line wire, measures the inclination angle of hitch point place transmission line wire.
Described optical fiber pulling force sensor 1, ultrasonic generator 2, the first ultrasonic receiver 3 all are connected and carry out communication with monitor controller 8 by wireless network with the second ultrasonic receiver 4, described obliquity sensor 5, temperature sensor 6 and air velocity transducer 7 all are connected with monitor controller 8, described monitor controller 8 also is connected with the first wireless transport module 11 and power supply 12, described power supply 12 can adopt lithium battery also can adopt on line and get point apparatus, for whole device power supply; Described power line conductive uniaxial stress and sag monitoring device also include the monitoring camera, and described monitoring camera is arranged on the shaft tower of transmission line wire and is connected with monitor controller 8, the icing situation that can observe transmission line wire by the monitoring camera; Above-mentioned measurement mechanism all is sent to monitor controller 8 by each self-monitoring data.
Described transmission line of electricity base station server 9 is connected with the second wireless transport module 13, and above-mentioned the first wireless transport module 11 is connected with the second wireless transport module 13 by wireless communication mode; Described transmission line of electricity base station server 9 is connected by wired or wireless mode with the Surveillance center's computing machine 10 that is arranged on the power monitoring center; Described transmission line of electricity base station server 9 can be connected by optical fiber with Surveillance center computing machine 10, described transmission line of electricity base station server 9 and Surveillance center's computing machine 10 also can be connected with respectively a GPRS communication module 14 and the 2nd GPRS communication module 15, and transmission line of electricity base station server 9 is connected by the GPRS wireless communication networks with Surveillance center computing machine 10; Described monitor controller 8 is sent to Surveillance center's computing machine 10 by the information of collection, and Surveillance center's computing machine 10 is by predefined computing method, the stress of computing electric power line wire and sag.
The utility model can, by stress and the sag of power line conductive uniaxial stress and sag monitoring method computing electric power line wire, said method comprising the steps of:
Step 1: installing optical fibres pulling force sensor 1 on transmission line wire records the pulling force of transmission line wire by optical fiber pulling force sensor 1
;
Step 2: by the pulling force of the transmission line wire that records in step 1
the stress of computing electric power line wire
, and by the stress of transmission line wire
the sag of computing electric power line wire
;
Step 3: packaged type ultrasonic generator 2 is installed on transmission line wire, the first ultrasonic receiver 3 and the second ultrasonic receiver 4 are installed respectively on the shaft tower at transmission line wire two ends, are recorded the time of reception that the first ultrasonic receiver 3 and the second ultrasonic receiver 4 receive ultrasonic generator 2 sonar signals
with
, and pass through time of reception
with
calculate separately the distance with ultrasonic generator 2
with
; Obliquity sensor 5 also is installed, the position angle that records transmission line wire by obliquity sensor 5 on the shaft tower at transmission line wire two ends
;
Step 4: the time of reception that relies on the first ultrasonic receiver 3 of recording in step 3 and the second ultrasonic receiver 4 to receive ultrasonic generators 2 by bistatic ultrasound wave localization method
,
separately with the distance of ultrasonic generator 2
,
the position angle that also has obliquity sensor 5 to record
the sag of computing electric power line wire
, and by the sag of transmission line wire
the stress of computing electric power line wire
;
Step 5: by the stress value drawn in step 2
with the stress value drawn in step 4
, calculate the two arithmetical mean stress value
;
Step 6: by the sag drawn in step 2
with the sag drawn in step 3
, calculate the two arithmetical mean sag
;
Step 7: repeat above-mentioned steps one to step 5, draw many group stress values
and sag
, generally select 20 groups to 30 groups data, pass through stress value
utilize least square method to draw the stress matched curve, pass through sag
utilize least square method to draw the sag matched curve.
In described step 2 by the pulling force of transmission line wire
the stress of computing electric power line wire
computing formula be:
Wherein: the cross-sectional area that s is transmission line wire.
In described step 2 by the stress of transmission line wire
the sag of computing electric power line wire
computing formula be:
Wherein:
for transmission line wire minimum point stress, the ratio that g is transmission line wire carries.
In described step 4 by the sag of bistatic ultrasound wave localization method computing electric power line wire
comprise the following steps:
Steps A, set up rectangular coordinate system, and the line of 4 two of the first ultrasonic receiver 3 and the second ultrasonic receivers of take is X-axis, and direction is pointed to the second ultrasonic receivers 4 by the first ultrasonic receiver 3; The mid point of the first ultrasonic receiver 3 and 4 two lines of the second ultrasonic receiver of take is initial point, and doing vertical line at initial point is Y-axis, the direction directed towards ground;
Step B, the coordinate of supposing the first ultrasonic receiver 3 for (
,
), the coordinate of the second ultrasonic receiver 4 be (
,
), the coordinate of ultrasonic generator 2 is (x, y), by coordinate, sets up system of equations:
Wherein:
be the distance of the first ultrasonic receiver 3 and ultrasonic generator 2,
be the distance of the second ultrasonic receiver 4 to ultrasonic generator 2;
Step C, calculate sag by the system of equations in step B
,
System of equations conversion in step B can obtain
By the above formula substitution
have:
And then draw:
Above formula is brought into
Can obtain two groups of solutions: (
) and (
), in the substitution positioning equation, can obtain two groups of solutions respectively
The application position angle
decision making:
If
, get
If
, get
By the sag computing formula
Obtain the sag of transmission line wire
.
In described step 4 by the sag of transmission line wire
the stress of computing electric power line wire
computing formula be:
Wherein:
for transmission line wire minimum point stress, the ratio that g is transmission line wire carries.
Above-mentioned transmission line wire minimum point stress
can directly from power supply department, obtain, different wires is to there being different minimum point stress
; The ratio of above-mentioned transmission line wire carries g, measure and calculate by multiple sensors, ratio commonly used carries and has seven kinds, as carried from anharmonic ratio, the ice anharmonic ratio is carried, the wire deadweight and ice heavy always than year, wind pressure ratio is carried during without ice, wind pressure ratio during icing is carried, comprehensive ratio while without ice, wind being arranged carries and comprehensive ratio while having ice that wind is arranged carries, and all can calculate acquisition by formula.
The utility model, by optical fiber pulling force sensor and ultrasonic receiving device, relies on computing machine by two kinds of different modes, accurately reacts on the whole stress and the sag of transmission line wire, realizes the accurate monitoring of stress and the sag of transmission line wire; The utility model utilizes optical fiber pulling force sensor monitoring power line conductive uniaxial stress can reduce electromagnetic interference (EMI), and the stress data of the transmission line wire of measurement is accurate; Utilize ultrasonic receiving device, by record multi-group data calculate its arithmetical mean can obtain one more accurate, more approach the conducting wire sag numerical value of actual value.
Claims (3)
1. power line conductive uniaxial stress and sag monitoring device, is characterized in that: comprising: optical fiber pulling force sensor (1), ultrasonic generator (2), the first ultrasonic receiver (3), the second ultrasonic receiver (4), obliquity sensor (5), temperature sensor (6), air velocity transducer (7), monitor controller (8), transmission line of electricity base station server (9) and Surveillance center's computing machine (10);
Described optical fiber pulling force sensor (1) and ultrasonic generator (2) are arranged on transmission line wire, and described ultrasonic generator (2) is the packaged type ultrasonic generator; Described the first ultrasonic receiver (3) and the second ultrasonic receiver (4) are arranged on respectively on the shaft tower at transmission line wire two ends; Described obliquity sensor (5), temperature sensor (6), air velocity transducer (7) and monitor controller (8) are arranged on the shaft tower of transmission line wire together;
Described optical fiber pulling force sensor (1), ultrasonic generator (2), the first ultrasonic receiver (3) and the second ultrasonic receiver (4) all are connected and carry out communication with monitor controller (8) by wireless network, and described obliquity sensor (5), temperature sensor (6) and air velocity transducer (7) all are connected with monitor controller (8); Described monitor controller (8) also is connected with the first wireless transport module (11) and power supply (12), described transmission line of electricity base station server (9) is connected with the second wireless transport module (13), and above-mentioned the first wireless transport module (11) is connected with the second wireless transport module (13) by wireless communication mode; Described transmission line of electricity base station server (9) is connected with the Surveillance center's computing machine (10) that is arranged on the power monitoring center.
2. power line conductive uniaxial stress according to claim 1 and sag monitoring device, it is characterized in that: described power line conductive uniaxial stress and sag monitoring device also include the monitoring camera, and described monitoring camera is arranged on the shaft tower of transmission line wire and is connected with monitor controller (8).
3. power line conductive uniaxial stress according to claim 1 and 2 and sag monitoring device, it is characterized in that: described transmission line of electricity base station server (9) and Surveillance center's computing machine (10) are connected with respectively a GPRS communication module (14) and the 2nd GPRS communication module (15), and transmission line of electricity base station server (9) is connected by the GPRS wireless communication networks with Surveillance center's computing machine (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320409116.1U CN203376088U (en) | 2013-07-10 | 2013-07-10 | Power transmission line conductor stress and sag monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320409116.1U CN203376088U (en) | 2013-07-10 | 2013-07-10 | Power transmission line conductor stress and sag monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN203376088U true CN203376088U (en) | 2014-01-01 |
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|---|---|---|---|
| CN201320409116.1U Expired - Fee Related CN203376088U (en) | 2013-07-10 | 2013-07-10 | Power transmission line conductor stress and sag monitoring device |
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|---|---|
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104331099A (en) * | 2014-11-17 | 2015-02-04 | 国网河南省电力公司南阳供电公司 | Substation line overvoltage data acquisition and storage monitoring cooling device and monitoring method thereof |
| CN104458079A (en) * | 2014-12-09 | 2015-03-25 | 国家电网公司 | Health monitoring method of distribution type optical fiber sensing pole and tower |
| CN105352547A (en) * | 2015-11-19 | 2016-02-24 | 国家电网公司 | Sensor-information-fusion-based monitoring apparatus and method of transmission line tower |
| CN106546205A (en) * | 2016-12-06 | 2017-03-29 | 国网山东省电力公司鄄城县供电公司 | Power transmission line sag monitoring device, server and method |
| CN108805890A (en) * | 2018-03-26 | 2018-11-13 | 西安电子科技大学 | A kind of arc hammer measurement method based on power transmission line image characteristic point |
| CN112161653A (en) * | 2020-09-07 | 2021-01-01 | 南方电网科学研究院有限责任公司 | Wind resistance coefficient measuring device and method for overhead power transmission line |
| CN112525260A (en) * | 2020-11-20 | 2021-03-19 | 杭州一益信息技术有限公司 | Conductor sag double-identification monitoring method |
-
2013
- 2013-07-10 CN CN201320409116.1U patent/CN203376088U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104331099A (en) * | 2014-11-17 | 2015-02-04 | 国网河南省电力公司南阳供电公司 | Substation line overvoltage data acquisition and storage monitoring cooling device and monitoring method thereof |
| CN104458079A (en) * | 2014-12-09 | 2015-03-25 | 国家电网公司 | Health monitoring method of distribution type optical fiber sensing pole and tower |
| CN105352547A (en) * | 2015-11-19 | 2016-02-24 | 国家电网公司 | Sensor-information-fusion-based monitoring apparatus and method of transmission line tower |
| CN106546205A (en) * | 2016-12-06 | 2017-03-29 | 国网山东省电力公司鄄城县供电公司 | Power transmission line sag monitoring device, server and method |
| CN106546205B (en) * | 2016-12-06 | 2019-01-15 | 嘉兴凯蒂市场营销策划有限公司 | Power transmission line sag monitoring device, server and method |
| CN108805890A (en) * | 2018-03-26 | 2018-11-13 | 西安电子科技大学 | A kind of arc hammer measurement method based on power transmission line image characteristic point |
| CN112161653A (en) * | 2020-09-07 | 2021-01-01 | 南方电网科学研究院有限责任公司 | Wind resistance coefficient measuring device and method for overhead power transmission line |
| CN112525260A (en) * | 2020-11-20 | 2021-03-19 | 杭州一益信息技术有限公司 | Conductor sag double-identification monitoring method |
| CN112525260B (en) * | 2020-11-20 | 2022-04-29 | 杭州一益信息技术有限公司 | Conductor sag double-identification monitoring method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20180710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |