CN106329385A - OPGW icing thickness measuring method and measuring device - Google Patents

OPGW icing thickness measuring method and measuring device Download PDF

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Publication number
CN106329385A
CN106329385A CN201510386814.8A CN201510386814A CN106329385A CN 106329385 A CN106329385 A CN 106329385A CN 201510386814 A CN201510386814 A CN 201510386814A CN 106329385 A CN106329385 A CN 106329385A
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China
Prior art keywords
ice
melt
opgw
melting
circuit
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CN201510386814.8A
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Chinese (zh)
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CN106329385B (en
Inventor
雷煜卿
陈希
汪洋
仝杰
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd
State Grid Sichuan Electric Power Co Ltd
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd
State Grid Sichuan Electric Power Co Ltd
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Priority to CN201510386814.8A priority Critical patent/CN106329385B/en
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Abstract

The invention relates to an OPGW icing thickness measuring method and a measuring device thereof. The method comprises the following steps: (1) monitoring icing condition of OPGW ground lines in a real-time manner; (2) when the thickness of the ice on the OPGW ground lines is beyond the alert thickness, de-icing alert information is sent out; (3) establishing a de-icing circuit according to the de-icing alert information; (4) carrying out de-icing operation according to the de-icing circuit; (5) monitoring and collecting de-icing temperature and progress of the OPGW ground lines; and (6) when the icing fall-off degree of the OPGW ground lines meets the requirements, de-icing operation is stopped. The technical proposal of the method and the device provided by the invention enables icing continuous measurement of the OPGW.

Description

A kind of OPGW ice covering thickness measuring method and measurement apparatus thereof
Technical field:
The present invention relates to power system power transmission and transformation on-line monitoring technique field, be more particularly to a kind of OPGW Ice covering thickness measuring method and measurement apparatus thereof.
Background technology:
The icing monitoring of current power transmission circuit is mainly the most manually patrolled and examined, high pressure and extra high voltage network The region of distribution is with a varied topography, bad environments so that line walking work is the arduousest.By sensor technology, The restriction of the factors such as communication technology, power supply and anti-strong jamming technology, the development ten of icing on-line monitoring technique Divide slowly.It is main both at home and abroad that to use wire icing accumulated snow automatically to detect weather station, wire icing accumulated snow automatic Detection and forecast system, tower load measurement and data collecting system, powerline ice-covering load remote measurement dress Put.The principle of these devices is circuit, wire and the change of tower load after detection wire icing. Analog conducting wire method is method relatively simple in these icing measuring methods.Analog conducting wire method is by covering In ice station or the neighbouring construction of line one section lead carrys out transmission line simulation, by measure analog wire Ice covering thickness estimates the icing situation of transmission line of electricity, and the current Application comparison of this mode is many.Analog conducting wire method Advantage principle is fairly simple, easily operated, but analog conducting wire measuring method exists some problems, first The ice covering thickness recorded on analog conducting wire ice covering thickness generally and on actual motion wire has difference;Again Person, along with the carrying out of wire ice-melt work, the icing on analog conducting wire cannot be removed, cause wire the same period The inefficacy of icing monitoring function.
Summary of the invention:
It is an object of the invention to provide a kind of OPGW ice covering thickness measuring method and measurement apparatus thereof, real The continuous measurement of the icing of existing OPGW.
For achieving the above object, the present invention is by the following technical solutions: a kind of OPGW ice covering thickness is surveyed Amount device, the ice covering monitoring system communicated to connect with described ice melting system including ice melting system is with described The temperature-measuring system of distributed fibers of ice melting system communication connection and ice-melt circuit;Described ice covering monitoring system with FBG fiber-optic grating sensor connects;Described distributed optical fiber temperature measurement system passes through outdoor optical cable and OPGW Ground wire connects;Described ice-melt circuit includes being respectively used to connect ice melting system and transmits electricity phase line and for being connected Melting of ice melting system and the ice melting electric cable of OPGW ground wire and UNICOM's transmission of electricity phase line and described OPGW ground wire Ice short-circuit line.
Described ice melting system, ice covering monitoring system and temperature-measuring system of distributed fibers are all built by 485 buses Vertical communication link;Described ice covering monitoring system sends beginning ice-melt control instruction to described ice melting system, opens Dynamic described ice melting system also starts ice-melt according to default ice melting current, and the most described ice covering monitoring system is not Described ice melting system is controlled;
After described ice melting system starts ice-melt, described ice melting system is to described temperature-measuring system of distributed fibers Send ice-melt sign on;Described temperature-measuring system of distributed fibers starts to be controlled ice melting system;This Time enter into monitoring and gather the temperature of described OPGW ground wire line ice-melting and judge the mistake of ice-melt progress Cheng Zhong.
Described temperature-measuring system of distributed fibers is carried out according to described OPGW ground wire line ice-melting temperature in real time Adjust, send increase to described ice melting system or reduce ice melting current signal.
After ice-melt terminates, described temperature-measuring system of distributed fibers sends instruction to described ice melting system, control Make described ice melting system and stop output electric current;Described ice melting system sends ice-melt to described ice covering monitoring system END instruction.
Described ice covering monitoring system monitors OPGW ground wire in real time by described FBG fiber-optic grating sensor Ice covering thickness on circuit;When described ice covering thickness exceedes warning thickness, described ice covering monitoring system sends Ice-melt alert message.
A kind of OPGW ice covering thickness measuring method, including:
(1) the icing situation of OPGW ground wire circuit is monitored in real time;
(2) when monitoring ice covering thickness on OPGW ground wire circuit and exceeding warning thickness, ice-melt is sent Alert message;
(3) according to described ice-melt alert message, ice-melt circuit is set up;
(4) ice-melt is carried out according to described ice-melt circuit;
(5) monitor and gather ice-melt temperature and the progress of described OPGW ground wire circuit;
(6) after the coating ice falling degree of described OPGW ground wire circuit reaches requirement, ice-melt is stopped.
In described step (3), described ice-melt circuit includes ice melting electric cable and ice-melt short-circuit line;Described Ice melting electric cable is used for connecting ice melting system and transmission of electricity phase line and is connected ice melting system and OPGW ground wire;Institute State transmit electricity described in ice-melt short-circuit line UNICOM phase line and described OPGW ground wire.
Described ice-melt circuit is connected with ice melting system;By described ice melting system is actuated for ice-melt.
What the ice-melt temperature according to described OPGW ground wire circuit adjusted that described ice melting system sends in real time melts Ice electric current.
With immediate prior art ratio, the present invention provides technical scheme to have following excellent effect
1, technical scheme uses temperature-measuring system of distributed fibers jointly to control with ice covering monitoring system DC ice melting power supply processed, overcome the ice covering thickness that records on analog conducting wire cannot with on actual motion wire The problem of change ice covering thickness same period;
2, technical scheme combining by temperature-measuring system of distributed fibers and ice covering monitoring system Judge, solve a difficult problem for the monitoring continuously of OPGW ground wire icing;
3, technical scheme utilizes temperature-measuring system of distributed fibers to achieve melting in deicing processes Monitoring, the distributed temperature monitoring in real time of ice temperature, is possible to prevent the optical cable destruction when superhigh temperature, has The life-span of effect protection OPGW optical cable and the safe operation guaranteeing optical cable;
4, technical scheme can realize the conductor temperature prison of power system OPGW Survey and overtemperature alarm, ice covering thickness monitoring and icing critical state alarm, the monitoring of icing melting state, light Cable ice-melt ancillary control function;
5, technical scheme ensures the operational reliability of OPGW.
Accompanying drawing explanation
Fig. 1 is the measurement apparatus structural representation of the embodiment of the present invention;
Fig. 2 is the method flow diagram of the embodiment of the present invention;
Wherein, 1-ice covering monitoring system, 2-temperature-measuring system of distributed fibers, 3-DC ice melting power supply, 4- Outdoor optical cable, 5-ice melting electric cable, 6-transmits electricity phase line, 7-FBG fiber-optic grating sensor, 8-OPGW ground Line, 9-ice-melt short-circuit line.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be described in further detail.
Embodiment 1:
The invention of this example provides a kind of OPGW ice covering thickness measuring method and measurement apparatus thereof;The present invention The analog conducting wire ice covering monitoring system that technical scheme is realized by Fiber Bragg Grating technology is surveyed with distribution type fiber-optic The combined monitoring of temperature monitoring system realizes the continuous measurement of the icing of OPGW.The application structure The icing monitoring scheme of the OPGW become can realize power system OPGW Conductor temperature monitoring with overtemperature alarm, ice covering thickness monitoring with icing critical state alarm, icing melt Status monitoring, optical cable ice-melt ancillary control function etc., it is ensured that the operational reliability of OPGW.
Described method includes as shown in Figure 2:
Step one: in the icing phase, first ice covering monitoring system 1, temperature-measuring system of distributed fibers 2, melt Communication link is set up by 485 buses between three main frames of ice system.Described ice melting system is DC ice melting electricity Source 3 is main equipment, and ice covering monitoring system 1 and temperature-measuring system of distributed fibers 2 are as from equipment.Described DC ice melting power supply 2 is initiated liaison and is aroused.
Step 2: in the icing phase, ice covering monitoring system 1 runs continuously, by being affiliated on shaft tower FBG fiber-optic grating sensor 7, the icing situation of monitoring OPGW ground wire circuit.
Step 3: described ice covering monitoring system 1 monitors OPGW by FBG fiber-optic grating sensor 7 When ice covering thickness exceedes warning thickness on ground wire circuit, send ice-melt alert message immediately, and eject ice-melt The confirmation dialog box of power initiation.The Utilities Electric Co. relevant personnel build ice-melt circuit as required, ice-melt Cable 5 is connected on a transmission of electricity phase line 6 and OPGW ground wire 8, simultaneously at the end treating ice-melt section Ice-melt short-circuit line 9 in connection.
Step 4: confirm the confirmation dialog box that DC ice melting power supply 3 starts on ice covering monitoring system 1. Ice covering monitoring system 1 sends beginning ice-melt control instruction to DC ice melting power supply 3, starts DC ice melting electricity Source 3 starts ice-melt according to default ice melting current, and ice covering monitoring system 1 abandons DC ice melting power supply 3 Control.
Step 5: after DC ice melting power supply 3 starts ice-melt, DC ice melting power supply 3 is immediately to distributed Optical fiber temperature measurement system 2 sends ice-melt sign on.Temperature-measuring system of distributed fibers 2 obtains DC ice melting electricity The control in source 3, enters in the temperature monitoring of DC ice-melting and the judge process of ice-melt progress.
Step 6: in deicing processes, temperature-measuring system of distributed fibers 2 is continuous with DC ice melting power supply 3 Two-way communication.Temperature-measuring system of distributed fibers 2 adjusts in real time according to OPGW ground wire 8 ice-melt temperature and melts Ice strategy, sends increase to DC ice melting power supply 3 or reduces ice melting current signal, ensures OPGW ground Line 8 is in optimal ice-melt state.
Step 7: temperature-measuring system of distributed fibers 2 monitors 8 temperature variations of OPGW ground wire, Judge that icing melts progress according to the temperature information on the icing OPGW ground wire 8 gathered.At OPGW After ground wire 8 coating ice falling degree reaches necessarily to require, it is determined that ice-melt terminates.The most described distribution type fiber-optic Temp measuring system 2 sends instruction, controls DC ice melting power supply 3 and stops output electric current, and ice-melt terminates.
Step 8: after this ice-melt terminates, DC ice melting power supply 3 sends to ice covering monitoring system 1 Ice-melt END instruction, tells that ice covering monitoring system 1OPGW ground wire 8 has deiced.Ice covering monitoring system 1 immediately enters the new ice covering thickness monitoring cycle, on the basis of existing ice thickness, recalculates simulation and leads Ice covering thickness growth pattern on line.Enter step one to process described in step 8.
Step 9: when meteorological condition takes a turn for the better, relevant staff determines to remove ice-melt circuit, now icing Monitoring system 1 enters the independent monitoring phase.Stop ice monitoring system, temperature-measuring system of distributed fibers 2, straight The stream triangular communication of ice-melt power supply 3.
Described measurement apparatus includes as shown in Figure 1:
Ice covering monitoring system 1, temperature-measuring system of distributed fibers 2, DC ice melting power supply 3, outdoor optical cable 4, ice melting electric cable 5, transmission of electricity phase line 6, FBG fiber-optic grating sensor 7, OPGW ground wire 8 and melt Ice short-circuit line 9.Described OPGW ground wire 8 is containing thermometric multimode or single-mode fiber, and passes through absolutely Edgeization transformation after with shaft tower be insulation.Described temperature-measuring system of distributed fibers 2 and OPGW ground wire 8 Connected by outdoor optical cable 4.Described temperature-measuring system of distributed fibers 2 and DC ice melting power supply 3 two-way Letter, transmission of control signals.Described ice covering monitoring system 1 and DC ice melting power supply 3 two-way communication, transmission Control signal.Described ice covering monitoring system 1 is connected with FBG fiber-optic grating sensor 7.Described direct current Ice-melt power supply 3 is connected OPGW ground wire 8 and a transmission of electricity phase line 6 mutually by ice melting electric cable 5.Melting The when of ice, ice-melt short-circuit line 9 is responsible for UNICOM's OPGW ground wire 8 and transmission of electricity phase line 6.
The distributed optical fiber temperature measurement monitoring system applied in this application is based on fiber raman scattering phenomenon And real-time, online, the continuous temperature measurement technology of optical time domain reflection (OTDR) (RAMAN). Described distributed optical fiber temperature measurement monitoring system possesses high spatial resolution, high thermometric accuracy, high location standard Exactness.Be characterized in: reliability is high, rate of false alarm is low, not by electromagnetic interference, networking capability is strong, be prone to Integrated, extension is convenient, intelligence degree high, be easy to debugging, maintenance and management, system are simple, maintenance Low cost.
Finally should be noted that: above example is only in order to illustrate technical scheme rather than to it Limit, although those of ordinary skill in the field with reference to above-described embodiment it is understood that still can be right The detailed description of the invention of the present invention is modified or equivalent, and these are without departing from present invention spirit and model Any amendment enclosed or equivalent, the claims of the present invention all awaited the reply in application it In.

Claims (9)

1. an OPGW ice covering thickness measurement apparatus, it is characterised in that: include that ice melting system is with described The ice covering monitoring system of ice melting system communication connection and the distribution type fiber-optic of described ice melting system communication connection are surveyed Temperature system and ice-melt circuit;Described ice covering monitoring system is connected with FBG fiber-optic grating sensor;Described distribution Formula optical fiber temperature-measurement system is connected with OPGW ground wire by outdoor optical cable;Described ice-melt circuit includes being respectively used to even Connect ice melting system and transmission of electricity phase line and defeated with the ice melting electric cable of OPGW ground wire and UNICOM for being connected ice melting system Electricity phase line and the ice-melt short-circuit line of described OPGW ground wire.
2. a kind of OPGW ice covering thickness measurement apparatus as claimed in claim 1, it is characterised in that: institute State ice melting system, ice covering monitoring system and temperature-measuring system of distributed fibers and all set up communication chain by 485 buses Road;Described ice covering monitoring system sends beginning ice-melt control instruction to described ice melting system, starts described ice-melt System also starts ice-melt according to default ice melting current, and the most described ice covering monitoring system is not to described ice-melt system System is controlled;
After described ice melting system starts ice-melt, described ice melting system is sent out to described temperature-measuring system of distributed fibers Go out ice-melt sign on;Described temperature-measuring system of distributed fibers starts to be controlled ice melting system;Now enter During entering the temperature to monitoring and gathering described OPGW ground wire line ice-melting and judging ice-melt progress.
3. a kind of OPGW ice covering thickness measurement apparatus as claimed in claim 2, it is characterised in that: institute State temperature-measuring system of distributed fibers to adjust in real time, to institute according to described OPGW ground wire line ice-melting temperature State ice melting system send increase or reduce ice melting current signal.
4. a kind of OPGW ice covering thickness measurement apparatus as claimed in claim 3, it is characterised in that: After ice-melt terminates, described temperature-measuring system of distributed fibers sends instruction to described ice melting system, melts described in control Ice system stops output electric current;Described ice melting system sends ice-melt END instruction to described ice covering monitoring system.
5. a kind of OPGW ice covering thickness measurement apparatus as claimed in claim 4, it is characterised in that: institute State ice covering monitoring system and monitor OPGW ground wire circuit overlying in real time by described FBG fiber-optic grating sensor Ice thickness;When described ice covering thickness exceedes warning thickness, described ice covering monitoring system sends ice-melt warning letter Breath.
6. an OPGW ice covering thickness measuring method, it is characterised in that: including:
(1) the icing situation of OPGW ground wire circuit is monitored in real time;
(2) when monitoring ice covering thickness on OPGW ground wire circuit and exceeding warning thickness, ice-melt is sent alert Ring information;
(3) according to described ice-melt alert message, ice-melt circuit is set up;
(4) ice-melt is carried out according to described ice-melt circuit;
(5) monitor and gather ice-melt temperature and the progress of described OPGW ground wire circuit;
(6) after the coating ice falling degree of described OPGW ground wire circuit reaches requirement, ice-melt is stopped.
7. a kind of OPGW ice covering thickness measuring method as claimed in claim 6, it is characterised in that: In described step (3), described ice-melt circuit includes ice melting electric cable and ice-melt short-circuit line;Described ice melting electric cable is used In connecting ice melting system and transmission of electricity phase line and being connected ice melting system and OPGW ground wire;Described ice-melt short-circuit line joins Logical described transmission of electricity phase line and described OPGW ground wire.
A kind of OPGW ice covering thickness measuring method the most as claimed in claims 6 or 7, it is characterised in that: Described ice-melt circuit is connected with ice melting system;By described ice melting system is actuated for ice-melt.
9. a kind of OPGW ice covering thickness measuring method as claimed in claim 8, it is characterised in that: root The ice melting current that described ice melting system sends is adjusted in real time according to the ice-melt temperature of described OPGW ground wire circuit.
CN201510386814.8A 2015-07-03 2015-07-03 A kind of OPGW ice covering thickness measurement method and its measuring device Active CN106329385B (en)

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CN107894402A (en) * 2017-11-06 2018-04-10 哈尔滨工业大学 A kind of icing monitoring based on fiber grating and graphene film and ice-melt integral system
CN110243295A (en) * 2019-06-21 2019-09-17 永州电力勘测设计院有限公司 Transmission line icing method for measuring thickness based on distributed optical fiber vibration sensor

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CN107894402B (en) * 2017-11-06 2020-02-07 哈尔滨工业大学 Icing monitoring and ice melting system based on fiber bragg grating and graphene film
CN110243295A (en) * 2019-06-21 2019-09-17 永州电力勘测设计院有限公司 Transmission line icing method for measuring thickness based on distributed optical fiber vibration sensor

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