CN103630078A - Overhead transmission line icing thickness detection apparatus and detection method - Google Patents
Overhead transmission line icing thickness detection apparatus and detection method Download PDFInfo
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- CN103630078A CN103630078A CN201210303231.0A CN201210303231A CN103630078A CN 103630078 A CN103630078 A CN 103630078A CN 201210303231 A CN201210303231 A CN 201210303231A CN 103630078 A CN103630078 A CN 103630078A
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Abstract
The invention discloses an overhead transmission line icing thickness detection apparatus and detection method. The apparatus comprises a fiber grating sensor, a detection signal emission and receiving device, a data processing device, and a client for scheduling and displaying data. The detection method comprises the following steps of: S1, detection signal emission and data acquisition; S2, signal receiving and encoding; S3, data processing and storing; S4, a user scheduling and displaying data acquired and processed in step S3 through a client so as to realize real-time monitoring. The detection apparatus and method provided by the invention, based on a fiber grating sensing technology, by taking a composite fiber-optic overhead ground line, a fiber composite overhead phase line and a full-medium self-bearing type optical cable and the like as a sensing information transmission channel, can effectively made up the disadvantages of active power supply needs and poor survival capability and the like, and solves the challenges encountered in power transmission line intelligentization reconstruction.
Description
Technical field
The present invention relates to electric power transmission line detection technique field, particularly a kind of coated by ice of overhead power transmission line thickness detection apparatus and detection method.
Background technology
China is subject to the impact of macroclimate and mima type microrelief, microclimate condition, and ice damage accident frequently occurs.Powerline ice-covering can cause disconnected strand of power transmission line, broken string, fall between tower, lead wire and earth wire flashover, short circuit tripping operation and icing the harm such as waves.In southern ice damage events in 2008, ice in occurring in a big way dodges tripping operation, conductor galloping and the broken string of falling tower accident, especially Central China occurs that glaze weather rarely seen in the history causes transmission line of electricity icing on a large scale, part line segment ice covering thickness obviously exceeds permanent way machine load-bearing capacity, the overhead line structures situation of collapsing is serious, directly affects power transmission network and normally moves.In addition, because icing may cause conductor galloping, and then cause alternate flashover, gold utensil to damage, the major accident such as tripping operation has a power failure, forget about it shaft tower, wire fractures.Powerline ice-covering causes great harm to transmission line of electricity safe and stable operation, has had a strong impact on economic development and social life.
Electronic type monitoring technology of the prior art is treated to basic feature with electronic information and has been doomed that it will be subject to the factor restrictions such as power supply, electromagnetic interference (EMI), signal transmission is unstable, data transmission capacity is limited, has limited its safety and reliability.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is, for the deficiencies in the prior art, a kind of coated by ice of overhead power transmission line thickness detection apparatus and detection method are provided, can effectively make up that existing monitoring scheme needs active power supply and viability is poor waits not enoughly, solve the challenge that power transmission line intelligentization faces in transforming.
(2) technical scheme
The invention provides a kind of coated by ice of overhead power transmission line thickness detection apparatus, comprising: fiber-optic grating sensor, detection signal transmitting and receiving trap, data processing equipment and for the client of data call and demonstration; Described detection signal transmitting and receiving trap send detection signal to described fiber-optic grating sensor, described fiber-optic grating sensor gathers the real-time data signal of overhead transmission line temperature, axial strain and ambient wind velocity wind direction by reflection detection signal, and be sent back to described detection signal transmitting and receiving trap by heat transfer agent transmission channel, the transmitting of described detection signal and receiving trap send to data processing equipment by this data-signal and process and store, user by described client the data after to sampling and processing call and show; Described fiber-optic grating sensor comprises: power transmission line strain transducer, power transmission line temperature sensor, power transmission line ambient wind velocity and power transmission line wind transducer.
Wherein, described detection signal transmitting and receiving trap are fiber Bragg grating (FBG) demodulator, and described data processing equipment is data processing server.
Wherein, described heat transfer agent transmission channel is Optical Fiber composite overhead Ground Wire, optical phase conductor or All Dielectric self-support.
Wherein, described power transmission line strain transducer and described power transmission line temperature sensor are installed on after insulator chain, parallel with overhead transmission line fixing; Or described power transmission line strain transducer and power transmission line temperature sensor are fixedly installed between insulator chain and shaft tower.
Wherein, described power transmission line ambient wind velocity sensor and described power transmission line ambient wind velocity sensor are fixedly installed on shaft tower.
The present invention also provides a kind of coated by ice of overhead power transmission line thickness detecting method, comprises the steps:
S1: the transmitting of detection signal and data acquisition: described fiber Bragg grating (FBG) demodulator produces narrow-band frequency-sweeping light and launches reflected light signal when narrow-band frequency-sweeping optical wavelength is mated with the centre wavelength of described fiber-optic grating sensor by heat transfer agent transmission channel to described fiber-optic grating sensor.
S2: the reception of signal and coding: the real-time data signal in S1 is sent back to fiber Bragg grating (FBG) demodulator by heat transfer agent transmission channel, described fiber Bragg grating (FBG) demodulator is demodulated to the digital signal of Wavelength-encoding by the real-time data signal receiving in S1, and sends it to data processing server.
S3: the processing of data and storage: described data processing server processes and calculate ice covering thickness, the temperature of overhead transmission line to the digital signal in S2, the wind speed and direction data of environment, and preserve the total data after sampling and processing.
S4: user by client the data after to sampling and processing in S3 call and show, realize Real-Time Monitoring.
Wherein, in described S1, narrow-band frequency-sweeping light is frequency size continually varying narrow band light.
Wherein, in described S3, calculation procedure is as follows:
S3.1: the deadweight that described data processing server calculates pole line according to the temperature data in real time data and axial strain data is always than carrying;
S3.2: always than carrying in conjunction with air speed data and wind direction data, calculate ice covering thickness according to the deadweight in S3.1.
Wherein, reflected light signal comprises: the real-time data signal of the temperature real-time data signal of overhead transmission line, axial strain real-time data signal, ambient wind velocity real-time data signal and wind direction.
(3) beneficial effect
Coated by ice of overhead power transmission line thickness detection apparatus of the present invention and detection method, be based on optical fiber sensing technology and utilize OPGW, OPPC and ADSS optical cable as heat transfer agent transmission channel, can effectively make up existing activeization of monitoring scheme and viability poor etc. not enough, solve the challenge facing in power transmission line intelligentization transformation.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of coated by ice of overhead power transmission line thickness detection apparatus of the present invention;
Fig. 2 is the structural representation of coated by ice of overhead power transmission line thickness detection apparatus of the present invention;
Fig. 3 is the embodiment of the present invention 1 power transmission line strain transducer and power transmission line temperature sensor installation site structural representation;
Fig. 4 is the embodiment of the present invention 1 power transmission line strain transducer and power transmission line temperature sensor and overhead transmission line fixed sturcture one schematic diagram;
Fig. 5 is the embodiment of the present invention 1 power transmission line strain transducer and power transmission line temperature sensor and overhead transmission line fixed sturcture two schematic diagram;
Fig. 6 is the embodiment of the present invention 2 power transmission line strain transducers and power transmission line temperature sensor installation site structural representation;
Fig. 7 is the embodiment of the present invention 2 power transmission line strain transducers and power transmission line arrangement of temperature sensor schematic diagram;
Fig. 8 is transmission line of electricity wind speed wind direction sensor work schematic diagram of the present invention;
Fig. 9 is coated by ice of overhead power transmission line thickness detecting method process flow diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
As Fig. 1 and in conjunction with as shown in Fig. 2, coated by ice of overhead power transmission line thickness detection apparatus comprises: the transmitting of fiber-optic grating sensor 1, detection signal and receiving trap 2, data processing equipment 3 and for the client 4 of data call and demonstration.Described detection signal transmitting and receiving trap 2 send detection signal to described fiber-optic grating sensor 1, described fiber-optic grating sensor 1 gathers the real-time data signal of overhead transmission line temperature, axial strain and ambient wind velocity wind direction by reflection detection signal, and be sent back to described detection signal transmitting and receiving trap 2 by heat transfer agent transmission channel, the transmitting of described detection signal and receiving trap 2 send to data processing equipment 3 by this data-signal and process and store, and the data of user after by 4 pairs of sampling and processings of described client are called and show.Described fiber-optic grating sensor 1 comprises: power transmission line strain transducer 11 and power transmission line temperature sensor 12, power transmission line ambient wind velocity wind transducer 13.Described power transmission line strain transducer 11 and power transmission line temperature sensor 12 are fixedly mounted on overhead transmission line, described power transmission line wind speed wind direction sensor 13 is fixedly mounted on shaft tower 6, and described fiber-optic grating sensor 1 is all serially connected with in electric aerial optical cable heat transfer agent transmission channel.Described in shaft tower 6 shaft towers 6, detection signal transmitting and receiving trap 2 are fiber Bragg grating (FBG) demodulator 21, and described data processing equipment 3 is data processing server 31.Described heat transfer agent transmission channel is Optical Fiber composite overhead Ground Wire (OPGW), optical phase conductor (OPPC) or All Dielectric self-support (ADSS).
Embodiment 1
As shown in Figure 3, position in Fig. 3 of described power transmission line strain transducer 11 and power transmission line temperature sensor 12(power transmission line temperature sensor 12 and the position consistency of power transmission line strain transducer 11) be all installed on after insulator chain, parallel with pole line fixing, shown in figure 4, mounting blocks is the position in Fig. 4 and the position consistency of power transmission line strain transducer 11 by transmission line of electricity strain transducer 11 and transmission line of electricity temperature sensor 12(power transmission line temperature sensor 12) fix with overhead transmission line, described mounting blocks is divided into mounting blocks top 51 and mounting blocks bottom 52, described mounting blocks top 51 is provided with jackscrew 511, described jackscrew 511 is for fixing overhead transmission line and mounting blocks, described mounting blocks bottom 52 is provided with end silk 521, and silk of the described end 521 is for fixing power transmission line strain transducer 11 and power transmission line temperature sensor 12 with mounting blocks.Power transmission line strain transducer 11 and power transmission line temperature sensor 12 and overhead power transmission line parallel, can synchronously respond to the axial strain that this overhead transmission line produces under gravity or wind action.
As shown in Figure 5, the position of described power transmission line strain transducer 11(power transmission line strain transducer 11 in Fig. 5 and the position consistency of power transmission line temperature sensor 12) and power transmission line temperature sensor 12 be positioned at after insulator chain, parallel with pole line, a sheathed compartment outside described power transmission line strain transducer 11 and power transmission line temperature sensor 12 and overhead transmission line, described compartment adopts Optical Fiber composite overhead Ground Wire (OPGW) optical cable connecting box, in order to prevent that power transmission line strain transducer 11 and temperature power transmission line sensor 12 from relatively moving with overhead transmission line, at power transmission line strain transducer 11 and power transmission line temperature sensor 12 two ends and pole line corresponding position, one stationary installation is set respectively.
As described in Figure 6, described power transmission line strain transducer 11 and power transmission line temperature sensor 12 be (position of power transmission line strain transducer 11 in Fig. 6 and the position consistency of power transmission line temperature sensor 12) between insulator chain and shaft tower 6, one end of power transmission line strain transducer 11 and power transmission line temperature sensor 12 is fixed on shaft tower 6, and the other end is connected with insulator chain.Shown in figure 7, better, power transmission line strain transducer 11 and power transmission line temperature sensor 12 are pasted on the surface of interface unit, and one end of described interface unit is fixed on shaft tower 6, the other end is connected with insulator chain, and the other end of described insulator chain is connected with pole line.Stretching by overhead transmission line to interface unit, makes the axial strain of power transmission line strain transducer 11 and power transmission line temperature sensor 12 induction pole lines.
As shown in Figure 8, according to the mode of orthogonal coordinate system, arrange air velocity transducer a, b, c, the d of 4 same structures.Wind speed V(only illustrates with V herein as shown in Figure 8, do not limit the direction and size of V) after orthogonal transformation, be divided into two orthogonal sub-wind speed V1 and V2, V1 and V2 are vertical while acting on two circular stressed plates respectively, plate, along the directive effect of sub-wind speed, makes fiber Bragg grating strain sensor produce microstrain.According to the relation of wind speed and microstrain, can obtain the size of wind speed.The wind speed result that different sensors is measured is carried out the synthetic calculating of geometry, wind direction and wind speed near just can obtaining.How much synthetic computation processes are as follows:
Fiber-optical grating temperature sensor is affixed on position shown in diagram, and the impact not stressing, only to variable response of temperature, therefore can, for temperature compensation, be eliminated the cross sensitivity of fiber Bragg grating strain sensor to strain and temperature.
As shown in Figure 9, coated by ice of overhead power transmission line thickness detecting method step is as follows:
S1: the transmitting of detection signal and data acquisition: described fiber Bragg grating (FBG) demodulator 21 produces narrow-band frequency-sweeping light and launches reflected light signal when narrow-band frequency-sweeping optical wavelength is mated with the centre wavelength of described fiber-optic grating sensor 1 by heat transfer agent transmission channel to described fiber-optic grating sensor 1; Reflected light signal comprises: the real time data of the temperature of overhead transmission line, axial strain, ambient wind velocity and wind direction.
S2: the reception of signal and coding: the real time data in S1 is sent back to fiber Bragg grating (FBG) demodulator 21 by heat transfer agent transmission channel, described fiber Bragg grating (FBG) demodulator 21 is demodulated to the digital signal of Wavelength-encoding by the real time data receiving in S1, and sends it to data processing server 31.
S3: the processing of data and storage: ice covering thickness, the temperature of overhead transmission line processed and calculated to the digital signal in 31 couples of S2 of described data processing server, the wind speed and direction of environment, and preserve the total data after sampling and processing.
S4: the data of user after by sampling and processing in 4 couples of S3 of described client are called and show, realize Real-Time Monitoring.
In described S1, narrow-band frequency-sweeping light is frequency size continually varying narrow band light.
In described S3, calculation procedure is as follows:
S3.1: the deadweight that described data processing server 31 calculates overhead transmission line according to the temperature data in real time data and axial strain data is always than carrying a g
n;
S3.2: always than carrying in conjunction with air speed data and wind direction data, calculate ice covering thickness according to the deadweight in S3.1.Concrete computation process is as follows:
Above embodiment is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (9)
1. a coated by ice of overhead power transmission line thickness detection apparatus, is characterized in that, comprising: fiber-optic grating sensor, detection signal transmitting and receiving trap, data processing equipment and for the client of data call and demonstration;
Described detection signal transmitting and receiving trap send detection signal to described fiber-optic grating sensor, described fiber-optic grating sensor gathers the real-time data signal of overhead transmission line temperature, axial strain and ambient wind velocity wind direction by reflection detection signal, and be sent back to described detection signal transmitting and receiving trap by heat transfer agent transmission channel, the transmitting of described detection signal and receiving trap send to data processing equipment by this data-signal and process and store, user by described client the data after to sampling and processing call and show; Described fiber-optic grating sensor comprises: power transmission line strain transducer, power transmission line temperature sensor, power transmission line ambient wind velocity wind transducer.
2. coated by ice of overhead power transmission line thickness detection apparatus as claimed in claim 1, is characterized in that, described detection signal transmitting and receiving trap are fiber Bragg grating (FBG) demodulator, and described data processing equipment is data processing server.
3. coated by ice of overhead power transmission line thickness detection apparatus as claimed in claim 1, is characterized in that, described heat transfer agent transmission channel is Optical Fiber composite overhead Ground Wire, optical phase conductor or All Dielectric self-support.
4. coated by ice of overhead power transmission line thickness detection apparatus as claimed in claim 1, is characterized in that, described power transmission line strain transducer and described power transmission line temperature sensor are installed on after insulator chain, parallel with overhead transmission line fixing; Or described power transmission line strain transducer and power transmission line temperature sensor are fixedly installed between insulator chain and shaft tower.
5. coated by ice of overhead power transmission line thickness detection apparatus as claimed in claim 1, is characterized in that, described power transmission line ambient wind velocity sensor and described power transmission line ambient wind velocity sensor are fixedly installed on shaft tower.
6. a coated by ice of overhead power transmission line thickness detecting method, is characterized in that, comprises the steps:
S1: the transmitting of detection signal and data acquisition: described fiber Bragg grating (FBG) demodulator produces narrow-band frequency-sweeping light and launches reflected light signal when narrow-band frequency-sweeping optical wavelength is mated with the centre wavelength of described fiber-optic grating sensor by heat transfer agent transmission channel to described fiber-optic grating sensor;
S2: the reception of signal and coding: the real-time data signal in S1 is sent back to fiber Bragg grating (FBG) demodulator by heat transfer agent transmission channel, described fiber Bragg grating (FBG) demodulator is demodulated to the digital signal of Wavelength-encoding by the real-time data signal receiving in S1, and sends it to data processing server;
S3: the processing of data and storage: described data processing server processes and calculate ice covering thickness, the temperature of overhead transmission line to the digital signal in S2, the wind speed and direction data of environment, and preserve the total data after sampling and processing;
S4: user by client the data after to sampling and processing in S3 call and show, realize Real-Time Monitoring.
7. coated by ice of overhead power transmission line thickness detecting method as claimed in claim 6, is characterized in that, in described S1, narrow-band frequency-sweeping light is frequency size continually varying narrow band light.
8. coated by ice of overhead power transmission line thickness detecting method as claimed in claim 6, is characterized in that, in described S3, calculation procedure is as follows:
S3.1: the deadweight that described data processing server calculates overhead transmission line according to the temperature data in real time data and axial strain data is always than carrying;
S3.2: always than carrying in conjunction with air speed data and wind direction data, calculate ice covering thickness according to the deadweight in S3.1.
9. coated by ice of overhead power transmission line thickness detecting method as claimed in claim 6, it is characterized in that, at reflected light signal described in S1, comprise: the real-time data signal of the temperature real-time data signal of overhead transmission line, axial strain real-time data signal, ambient wind velocity real-time data signal and wind direction.
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| CN103900529A (en) * | 2014-03-03 | 2014-07-02 | 国网江西省电力公司信息通信分公司 | Power transmission line inclined angle measurement device and method based on fiber bragg grating sensing technology |
| CN105375430A (en) * | 2015-12-17 | 2016-03-02 | 徐晶 | Power supply line deicing device |
| CN105449614A (en) * | 2015-12-17 | 2016-03-30 | 张广德 | Deicing platform for high-voltage line |
| CN105610085A (en) * | 2015-12-17 | 2016-05-25 | 张广德 | High voltage line deicing method |
| CN105762748A (en) * | 2015-12-17 | 2016-07-13 | 李福军 | Deicing platform for high-voltage line |
| CN106338242A (en) * | 2015-07-15 | 2017-01-18 | 成都阜特科技股份有限公司 | Wind generating set blade icing amount measuring method and measuring device |
| CN106768084A (en) * | 2017-03-10 | 2017-05-31 | 国网山东省电力公司龙口市供电公司 | A kind of icing on-Line Monitor Device |
| CN107328439A (en) * | 2017-07-17 | 2017-11-07 | 国网浙江省电力公司台州供电公司 | A kind of wire fluctuation status monitoring device |
| CN107356218A (en) * | 2017-07-26 | 2017-11-17 | 国网山东省电力公司临朐县供电公司 | Transmission line icing monitoring system |
| CN108696586A (en) * | 2018-05-11 | 2018-10-23 | 国网山东省电力公司东营供电公司 | A kind of distribution network automated Transmission system and method based on OPPC lines |
| CN109687374A (en) * | 2018-08-01 | 2019-04-26 | 北京邮电大学 | Laser ice melting system and method based on Bragg grating |
| CN109975297A (en) * | 2019-04-20 | 2019-07-05 | 宁夏龙源电力有限公司 | A kind of detection device for powerline ice-covering |
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| CN106338242B (en) * | 2015-07-15 | 2019-01-29 | 成都阜特科技股份有限公司 | A kind of wind generator set blade icing measuring method and its measuring device |
| CN106338242A (en) * | 2015-07-15 | 2017-01-18 | 成都阜特科技股份有限公司 | Wind generating set blade icing amount measuring method and measuring device |
| CN105375430A (en) * | 2015-12-17 | 2016-03-02 | 徐晶 | Power supply line deicing device |
| CN105449614A (en) * | 2015-12-17 | 2016-03-30 | 张广德 | Deicing platform for high-voltage line |
| CN105610085A (en) * | 2015-12-17 | 2016-05-25 | 张广德 | High voltage line deicing method |
| CN105762748A (en) * | 2015-12-17 | 2016-07-13 | 李福军 | Deicing platform for high-voltage line |
| CN106768084A (en) * | 2017-03-10 | 2017-05-31 | 国网山东省电力公司龙口市供电公司 | A kind of icing on-Line Monitor Device |
| CN107328439A (en) * | 2017-07-17 | 2017-11-07 | 国网浙江省电力公司台州供电公司 | A kind of wire fluctuation status monitoring device |
| CN107356218A (en) * | 2017-07-26 | 2017-11-17 | 国网山东省电力公司临朐县供电公司 | Transmission line icing monitoring system |
| CN108696586A (en) * | 2018-05-11 | 2018-10-23 | 国网山东省电力公司东营供电公司 | A kind of distribution network automated Transmission system and method based on OPPC lines |
| CN109687374A (en) * | 2018-08-01 | 2019-04-26 | 北京邮电大学 | Laser ice melting system and method based on Bragg grating |
| CN109975297A (en) * | 2019-04-20 | 2019-07-05 | 宁夏龙源电力有限公司 | A kind of detection device for powerline ice-covering |
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