CN208125295U - A kind of high-tension cable monitoring system based on optical fiber transmission - Google Patents
A kind of high-tension cable monitoring system based on optical fiber transmission Download PDFInfo
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- CN208125295U CN208125295U CN201820439219.5U CN201820439219U CN208125295U CN 208125295 U CN208125295 U CN 208125295U CN 201820439219 U CN201820439219 U CN 201820439219U CN 208125295 U CN208125295 U CN 208125295U
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Abstract
The utility model discloses a kind of high-tension cables based on optical fiber transmission to monitor system comprising multiple fiber grating cable conductor thermal bulbs, fiber Bragg grating (FBG) demodulator and industrial personal computer；Wherein, fiber grating cable conductor thermal bulb is arranged on cable, and is connect by optical cable with fiber Bragg grating (FBG) demodulator；Fiber Bragg grating (FBG) demodulator demodulates the temperature information that fiber grating cable conductor thermal bulb detects, and the temperature information demodulated is transferred to industrial personal computer according to the wavelength change of fiber grating.Therefore, the utility model can be realized the temperature monitoring of the high-tension cable based on optical fiber transmission, apply the installation difficulty and installation cost that can not only reduce high-tension cable monitoring system when tunnel, shallow ridges and comb etc. are live, additionally it is possible to guarantee the reliability of high-tension cable monitoring system.
Description
Technical field
The utility model relates to cable monitoring technical field, in particular to a kind of high-tension cable monitoring based on optical fiber transmission
System.
Background technique
Currently, the common high-tension cable monitoring means of electric power O&M is that powered communication is total to the monitoring of cable bus type, still, due to
Moist, ponding environmental factor in tunnel, keeps sustained low pressure power supply difficult, the especially scenes such as shallow ridges, comb can not provide
Power supply is total to the monitoring of cable bus type according to powered communication, not only increases installation difficulty and installation, but also reliability is not high.And light
Fibre is used as transmission medium, does not need site of deployment and provides power supply, long transmission distance and is not influenced, be can be applied to by electromagnetic interference
Therefore tunnel, shallow ridges, the combined application scenarios for making somebody a mere figurehead shaft tower and a variety of transmission lines of electricity are a kind of with fiber buss monitoring
More satisfactory high voltage power supply monitoring means.
Utility model content
The purpose of this utility model is that：A kind of high-tension cable monitoring system based on optical fiber transmission is provided, is reduced in tunnel
The installation difficulty and installation cost for the high-tension cable monitoring system applied in the scene such as road, shallow ridges and comb, meanwhile, guarantee high pressure
The reliability of cable monitoring system.
In order to realize above-mentioned purpose of utility model, the utility model provides following technical scheme：
A kind of high-tension cable monitoring system based on optical fiber transmission comprising multiple fiber grating cable conductor thermal bulbs,
Fiber Bragg grating (FBG) demodulator and industrial personal computer；Wherein, the fiber grating cable conductor thermal bulb is arranged on cable, and passes through optical cable
It is connect with the fiber Bragg grating (FBG) demodulator；The fiber Bragg grating (FBG) demodulator demodulates described according to the wavelength change of fiber grating
The temperature information that fiber grating cable conductor thermal bulb detects, and the temperature information demodulated is transferred to the industry control
Machine.
According to a kind of specific embodiment, in the high-tension cable monitoring system that the utility model is transmitted based on optical fiber, institute
It states and is embedded with two fiber grating temperature sensors, one of fiber grating in the main body of fiber grating cable conductor thermal bulb
Temperature sensor is arranged close to the main body inner surface, is used for detection cable surface temperature, another optical fiber grating temperature passes
Sensor is arranged close to the main body outer surface, for detecting main body exterior measuring surface temperature.
Preferably, the industrial personal computer is according to the gradient between the cable surface temperature and the main body exterior measuring surface temperature
Relationship calculates the corresponding cable conductor temperature in fiber grating cable conductor thermal bulb setting position.
Preferably, the main body of the fiber grating cable conductor thermal bulb is heat preserving and insulating material.
Preferably, the setting position of the fiber grating cable conductor thermal bulb at cable connector at a distance from for 0.8~
1.2 rice.
Preferably, the fiber grating cable conductor thermal bulb its tail optical fiber of the cable connector both ends setting on threephase cable
It is serially connected by a single fiber cable, the single fiber cable is connected to the multi-core optical of the fiber Bragg grating (FBG) demodulator with end
A piece fibre core of cable connects.
According to a kind of specific embodiment, the utility model further includes based on the high-tension cable monitoring system that optical fiber transmits
Current transformer combining unit and multiple fiber Bragg grating current mutual inductors, moreover, the fiber Bragg grating current mutual inductor is for examining
Survey the earth current of cable metal protective layer and/or the running current of cable；The fiber Bragg grating current mutual inductor passes through optical cable
It is connect with the current transformer combining unit, current data is transferred to the industry control by the current transformer combining unit
Machine.
Preferably, the tail optical fiber of each fiber Bragg grating current mutual inductor is connected to the current transformer with end respectively
A piece fibre core of the multifiber cable of combining unit connects.
Preferably, the mounting structure of the fiber Bragg grating current mutual inductor is to clamp into formula.
Compared with prior art, the beneficial effects of the utility model：
1, the high-tension cable monitoring system based on optical fiber transmission of the utility model includes multiple fiber grating cable conductors
Thermal bulb, fiber Bragg grating (FBG) demodulator and industrial personal computer；Wherein, fiber grating cable conductor thermal bulb is arranged on cable, and passes through
Optical cable is connect with fiber Bragg grating (FBG) demodulator；Fiber Bragg grating (FBG) demodulator demodulates fiber grating according to the wavelength change of fiber grating
The temperature information that cable conductor thermal bulb detects, and the temperature information demodulated is transferred to industrial personal computer.Therefore, this is practical
The novel temperature monitoring that can be realized the high-tension cable based on optical fiber transmission, is applied when tunnel, shallow ridges and comb etc. are live, no
Can only reduce high-tension cable monitoring system installation difficulty and installation cost, additionally it is possible to guarantee high-tension cable monitoring system can
By property.
2, in the high-tension cable monitoring system based on optical fiber transmission of the utility model, fiber grating cable conductor thermal bulb
Main body in be embedded with two fiber grating temperature sensors, one of fiber grating temperature sensor is close to table on the inside of main body
Face setting, is used for detection cable surface temperature, another fiber grating temperature sensor is arranged close to main body outer surface, is used for
Detect main body exterior measuring surface temperature.Moreover, the main body of fiber grating cable conductor thermal bulb is heat preserving and insulating material, it can be local
The heat dissipation of cable is constrained, forms cable local thermodynamic equilibrium, and make cable conductor temperature, cable surface temperature, thermal bulb outer layer temperature
Formation temperature gradient is spent, so as to which cable conductor is accurately calculated under conditions of sensor is not contacted with cable conductor
Temperature.Therefore, the utility model can significantly promote the efficiency of installation and maintenance, meanwhile, with existing high-tension cable temperature
Used sensor is detected compared with the mode that cable conductor contacts, protection box is not needed to protect cable conductor, both saved
Cost also avoids cable conductor and is exposed the risk being damaged in the environment.
3, the high-tension cable monitoring system based on optical fiber transmission of the utility model further includes current transformer combining unit
With multiple fiber Bragg grating current mutual inductors, moreover, fiber Bragg grating current mutual inductor be used for detection cable coat of metal ground connection
The running current of electric current and/or cable；Fiber Bragg grating current mutual inductor is connect by optical cable with current transformer combining unit, electricity
Current data is transferred to industrial personal computer by current transformer combining unit.Therefore, the utility model can be realized based on optical fiber transmission
The current monitoring of high-tension cable.
Detailed description of the invention：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the fiber grating cable conductor thermal bulb of the utility model；
Fig. 3 is the structural schematic diagram of an embodiment of the present invention.
It is marked in figure：1- industrial personal computer, 2- fiber Bragg grating (FBG) demodulator, 3- multifiber cable, 4- fiber grating cable conductor thermometric
Packet main body, 5- cable surface, 6- cable conductor, 7- current transformer combining unit.
Specific embodiment
The utility model is described in further detail below with reference to test example and specific embodiment.But it should not be by this
The range for being interpreted as the above-mentioned theme of the utility model is only limitted to embodiment below, all to be realized based on the content of the present invention
Technology belongs to the scope of the utility model.
The utility model as shown in connection with fig. 1 monitors system based on the high-tension cable that optical fiber transmits comprising N number of optical fiber light
Grid cable conductor thermal bulb, fiber Bragg grating (FBG) demodulator 2 and industrial personal computer 1.
Wherein, fiber grating cable conductor thermal bulb is arranged on cable, and is connected by optical cable and fiber Bragg grating (FBG) demodulator 2
It connects.Fiber Bragg grating (FBG) demodulator 2 demodulates each fiber grating cable conductor thermal bulb detection according to the wavelength change of fiber grating
The temperature information arrived, and the temperature information demodulated is transferred to industrial personal computer 1, thus by industrial personal computer 1 to the temperature of cable
Information is monitored.
In conjunction with the structural schematic diagram of the fiber grating cable conductor thermal bulb of the utility model of Fig. 2；Wherein, fiber grating
Two fiber grating temperature sensors, one of fiber grating temperature sensor are embedded in the main body 4 of cable conductor thermal bulb
Device is arranged close to 4 inner surface of main body, since inner surface and the cable surface 5 of main body 4 fit, then, it is arranged in main body 4
The fiber grating temperature sensor of inner surface is used for detection cable surface temperature；Another fiber grating temperature sensor is close
Main body outer surface setting, for detecting main body exterior measuring surface temperature.
Moreover, the fiber grating cable conductor thermal bulb in the utility model is heat preserving and insulating material, such as glass fibre, stone
Cotton, rock wool etc..Meanwhile the setting position of fiber grating cable conductor thermal bulb at cable connector at a distance from be 0.8~1.2
Rice.
Due to the main body 4 local restriction heat dissipation of cable of fiber grating cable conductor thermal bulb, cable part is formed
Thermal balance, and make the main body exterior measuring surface temperature of cable conductor temperature, cable surface temperature, fiber grating cable conductor thermal bulb
Formation temperature gradient.So industrial personal computer 1 obtains two optical fiber grating temperatures in some fiber grating cable conductor thermal bulb and passes
After the information of cable surface temperature detected by sensor and main body exterior measuring surface temperature, according to outside cable surface temperature and main body
The gradient relation between surface temperature is surveyed, the corresponding cable in fiber grating cable conductor thermal bulb setting position can be calculated and led
The temperature of body 6.
Therefore, inner surface layer and outside table that the utility model passes through the main body in fiber grating cable conductor thermal bulb
A fiber grating temperature sensor is respectively set in face, can be under conditions of sensor is not contacted with cable conductor, accurately
The temperature of cable conductor is calculated, to significantly promote the efficiency of installation and maintenance.Meanwhile it being examined with existing high-tension cable temperature
Used sensor is surveyed compared with the mode that cable conductor contacts, protection box is not needed to protect cable conductor, both saves into
This, also avoids cable conductor and is exposed the risk being damaged in the environment.
When implementing, a fiber grating cable conductor thermal bulb, therefore, three-phase is respectively set at the both ends of cable connector
Every group of cable connector just corresponds to 6 fiber grating cable conductor thermal bulbs on cable, by this 6 fiber grating cable conductor thermometrics
The tail optical fiber of packet is serially connected by a single fiber cable, and the single fiber cable and end are connected to fiber Bragg grating (FBG) demodulator 2
A piece fibre core of multifiber cable 3 connects.
The structural schematic diagram of an embodiment of the present invention as shown in connection with fig. 3；The present embodiment is shown in Fig. 1
On the basis of structure, the utility model further includes current transformer combining unit based on the high-tension cable monitoring system that optical fiber transmits
7 and multiple fiber Bragg grating current mutual inductors, moreover, fiber Bragg grating current mutual inductor is used for the ground connection of detection cable coat of metal
The running current of electric current and/or cable；Fiber Bragg grating current mutual inductor is connect by optical cable with current transformer combining unit 7,
Current data is transferred to industrial personal computer 1 by current transformer combining unit 7, thus by industrial personal computer 1 to the current information of cable into
Row monitoring.
When implementing, the tail optical fiber of each fiber Bragg grating current mutual inductor is connected to current transformer with end respectively and merges list
The fibre core connection of the multifiber cable 3 of member 7.Moreover, the mounting structure of fiber Bragg grating current mutual inductor is to clamp into formula, facilitate peace
Dress.
Claims (9)
1. a kind of high-tension cable based on optical fiber transmission monitors system, which is characterized in that including multiple fiber grating cable conductors
Thermal bulb, fiber Bragg grating (FBG) demodulator and industrial personal computer；Wherein, the fiber grating cable conductor thermal bulb is arranged on cable, and
It is connect by optical cable with the fiber Bragg grating (FBG) demodulator；Wavelength change of the fiber Bragg grating (FBG) demodulator according to fiber grating, solution
The temperature information that the fiber grating cable conductor thermal bulb detects is recalled, and the temperature information demodulated is transferred to institute
State industrial personal computer.
2. the high-tension cable as described in claim 1 based on optical fiber transmission monitors system, which is characterized in that the fiber grating
Two fiber grating temperature sensors, one of fiber grating temperature sensor are embedded in the main body of cable conductor thermal bulb
It is arranged close to the main body inner surface, is used for detection cable surface temperature, another fiber grating temperature sensor is close to institute
The setting of main body outer surface is stated, for detecting main body exterior measuring surface temperature.
3. the high-tension cable as claimed in claim 2 based on optical fiber transmission monitors system, which is characterized in that the industrial personal computer root
According to the gradient relation between the cable surface temperature and the main body exterior measuring surface temperature, corresponding cable conductor temperature is calculated
Degree.
4. the high-tension cable as claimed in claim 2 based on optical fiber transmission monitors system, which is characterized in that the fiber grating
The main body of cable conductor thermal bulb is heat preserving and insulating material.
5. the high-tension cable as claimed in claim 2 based on optical fiber transmission monitors system, which is characterized in that the fiber grating
The setting position of cable conductor thermal bulb at cable connector at a distance from be 0.8~1.2 meter.
6. the high-tension cable as claimed in claim 2 based on optical fiber transmission monitors system, which is characterized in that on threephase cable
Its tail optical fiber of the fiber grating cable conductor thermal bulb of cable connector both ends setting is serially connected by a single fiber cable,
The single fiber cable is connect with a fibre core of the multifiber cable that end is connected to the fiber Bragg grating (FBG) demodulator.
7. the high-tension cable based on optical fiber transmission as described in one of claim 1~6 monitors system, which is characterized in that also wrap
Current transformer combining unit and multiple fiber Bragg grating current mutual inductors are included, moreover, the fiber Bragg grating current mutual inductor is used for
The earth current of detection cable coat of metal and/or the running current of cable；The fiber Bragg grating current mutual inductor passes through light
Cable is connect with the current transformer combining unit, and current data is transferred to the industry control by the current transformer combining unit
Machine.
8. the high-tension cable as claimed in claim 7 based on optical fiber transmission monitors system, which is characterized in that each optical fiber
The tail optical fiber of grating current transformer is connected to a fibre of the multifiber cable of the current transformer combining unit with end respectively
Core connection.
9. the high-tension cable as claimed in claim 7 based on optical fiber transmission monitors system, which is characterized in that the fiber grating
The mounting structure of current transformer is to clamp into formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820439219.5U CN208125295U (en) | 2018-03-29 | 2018-03-29 | A kind of high-tension cable monitoring system based on optical fiber transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820439219.5U CN208125295U (en) | 2018-03-29 | 2018-03-29 | A kind of high-tension cable monitoring system based on optical fiber transmission |
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| Publication Number | Publication Date |
|---|---|
| CN208125295U true CN208125295U (en) | 2018-11-20 |
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ID=64193750
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820439219.5U Active CN208125295U (en) | 2018-03-29 | 2018-03-29 | A kind of high-tension cable monitoring system based on optical fiber transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926648A (en) * | 2019-11-15 | 2020-03-27 | 神华粤电珠海港煤炭码头有限责任公司 | High tension cable middle head optic fibre temperature measurement system |
| CN112798051A (en) * | 2021-01-29 | 2021-05-14 | 中国电力科学研究院有限公司 | External cable state monitoring system and method based on fiber bragg grating sensing technology |
-
2018
- 2018-03-29 CN CN201820439219.5U patent/CN208125295U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926648A (en) * | 2019-11-15 | 2020-03-27 | 神华粤电珠海港煤炭码头有限责任公司 | High tension cable middle head optic fibre temperature measurement system |
| CN112798051A (en) * | 2021-01-29 | 2021-05-14 | 中国电力科学研究院有限公司 | External cable state monitoring system and method based on fiber bragg grating sensing technology |
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