CN201803820U - On-line monitoring system of fiber-grating compounded insulator - Google Patents
On-line monitoring system of fiber-grating compounded insulator Download PDFInfo
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- CN201803820U CN201803820U CN2010205362909U CN201020536290U CN201803820U CN 201803820 U CN201803820 U CN 201803820U CN 2010205362909 U CN2010205362909 U CN 2010205362909U CN 201020536290 U CN201020536290 U CN 201020536290U CN 201803820 U CN201803820 U CN 201803820U
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Abstract
The utility model discloses an on-line monitoring system of a fiber-grating compounded insulator, which comprises the fiber-grating compounded insulator and a monitoring system, wherein the monitoring system comprises a temperature stress analyzing device, an auxiliary measuring device and an integrated control box; a No.1 jumper terminal protection box, a center control box and a power supply are arranged inside the integrated control box; one end of the No.1 jumper terminal protection box is connected with an outlet optical fiber of the fiber-grating compounded insulator; the other end of the No.1 jumper terminal protection box is connected with the temperature stress analyzing device by an optical fiber composite overhead ground wire; the center control box is connected with the auxiliary measuring device and a wireless data transmission unit; the auxiliary measuring device comprises a temperature-humidity sensor, a wind direction transducer and a wind speed transducer; and the power supply is connected with a solar panel. The utility model not only can be used for monitoring the compounded insulator on line, can reduce the work intensity and shorten the measuring time and has excellent system and higher safety, but also has low possibility of being influenced by the environment as well as better measuring effect, higher accuracy and wider application range.
Description
Technical field
The utility model relates to a kind of monitoring device of composite insulator, relates in particular to a kind of on-line monitoring system of fiber grating composite insulator, specifically is applicable to the monitoring to the mechanical property and the electric property of composite insulator.
Background technology
The performance of high-tension insulator, particularly mechanical property and insulating property have very important influence to the safe operation of electric system, mechanical property and insulating property that therefore must the periodic monitoring insulator.The monitoring method of traditional composite insulator is the requirement according to DL/T864 – 2004, and per 1 – maked an inspection tour in 2 months, and per 3 – delivered to testing laboratory from shaft tower extraction insulator in 5 years and carry out service check.But this sampling method exist working strength big, step on that bar has a big risk and shortcoming such as very long consuming time, the not only whole observation process time is long, labour intensity is big, measurement data is disperseed, and can not the time dependent situation of tracking and monitoring insulator performance.Therefore make a kind of real-time, online, monitor the system of high-tension insulator automatically, the safe operation of electric system is seemed very important.For satisfying the requirement of safe operation of power system, design and production, appearance is a kind of in the prior art implants core rod of insulator with fiber grating, and by measuring the monitoring method that insulator machinery and electric property are monitored in the grating wavelength drift.
The Chinese patent Granted publication number is CN1287180C, Granted publication day is that the patent of invention on November 29th, 2006 discloses a kind of compound substance electric(al) insulator, this compound substance electric(al) insulator comprises a combined fibre-optical sensor that is located in the insulator, this combination sensor can be a fault sensor, constitute by an optical fiber that is located on the insulator support bar, and have is being the optics covering that melts under the temperature of key to insulator, this combination sensor can be one when insulator work measurement act on the insulator sensor that machinery or heat cause stress, it has the optical fiber of having implanted the Bragg grating by one and constitutes, and the Bragg grating is located on the cramp bar of insulator or on the metal end joint of insulator.Though this invention can be measured the thermal stress and the mechanical stress of insulator by the light signal of analyzing feedback when measuring, its system is too simple, and not only security is not high, and does not consider the influence of environment, so measurement effect is relatively poor, and degree of accuracy is lower.
Summary of the invention
The purpose of this utility model be overcome that the system that exists in the prior art is too simple, security is not high, easily affected by environment, measurement effect is relatively poor, defective that degree of accuracy is lower and problem, provide that a kind of system is superior, security is higher, it is affected by environment to be difficult for, measurement effect is better, the on-line monitoring system of the fiber grating composite insulator that degree of accuracy is higher.
For realizing above purpose, technical solution of the present utility model is: a kind of on-line monitoring system of fiber grating composite insulator, and this system comprises interconnective fiber grating composite insulator and monitoring device;
Described monitoring device comprises analysis on temperature stress device, aided measurement device and is arranged on Comprehensive Control case on the shaft tower;
The inside of described Comprehensive Control case is provided with jumper terminal protection box, center control enclosure and power supply No. one, one end of a jumper terminal protection box is connected with the outlet optical fiber on the fiber grating composite insulator, and the other end is connected with the analysis on temperature stress device by Optical Fiber composite overhead Ground Wire; Be connected with aided measurement device and wireless data transmission unit on the control enclosure of described center.
Described aided measurement device comprises Temperature Humidity Sensor, wind transducer and air velocity transducer, and described wireless data transmission unit is the GSM antenna, is connected with solar panels on the described power supply.
Be provided with jumper terminal protection box between one end of described jumper terminal protection box and the outlet optical fiber No. two; one end of these No. two jumper terminal protection boxes is connected with outlet optical fiber, and the other end is connected with an end of a jumper terminal protection box by a wire jumper.
Be provided with optical cable connecting box No. one between the other end of described jumper terminal protection box and the Optical Fiber composite overhead Ground Wire, be provided with No. two optical cable connecting box between the other end of Optical Fiber composite overhead Ground Wire and the analysis on temperature stress device; A described optical cable connecting box is connected with the other end of a jumper terminal protection box by No. two wire jumpers, and No. two optical cable connecting box is connected with the analysis on temperature stress device by No. three wire jumpers.
The inside of described jumper terminal protection box, No. two jumper terminal protection boxes is provided with the joint flange that wiring is used; The inside of a described optical cable connecting box, No. two optical cable connecting boxes is provided with the cold connector that wiring is used.
Compared with prior art, the beneficial effects of the utility model are:
1; because the on-line monitoring system of a kind of fiber grating composite insulator of the utility model comprises interconnective fiber grating composite insulator; Comprehensive Control case and analysis on temperature stress device; and the fiber grating composite insulator is successively by No. two jumper terminal protection boxes; a wire jumper; a jumper terminal protection box; No. two wire jumpers; an optical cable connecting box; Optical Fiber composite overhead Ground Wire; No. two optical cable connecting boxes; No. three wire jumper is connected with the analysis on temperature stress device; construct superior; not only can effectively overcome the shortcoming of insulator tail optical fiber limited length; thereby realize distance reception to the composite insulator light signal fed back; and then play the effect of on-line monitoring; and service range that can extended fiber grating composite insulator; enlarge the range of application of this monitoring system; in addition; jumper terminal protection box and optical cable connecting box can also guarantee that optical fiber is not subjected to environmental damage; as not making moist; improve the security that native system uses; cold connector in the optical cable connecting box can also overcome the shortcoming that can't use optical fiber splicer on the shaft tower, reduces the operation easier of native system.Therefore the utility model not only can the on-line monitoring composite insulator, reduce working strength, shorten Measuring Time, and system is superior, security is higher, range of application is wider.
2, since in the on-line monitoring system of a kind of fiber grating composite insulator of the utility model except the fiber grating composite insulator, outside the analysis on temperature stress device, also on the Comprehensive Control case, be connected with aided measurement device and wireless data transmission unit, aided measurement device can record the temperature of surrounding environment, humidity, wind direction and wind speed etc., and wireless data transmission unit can send the data that record to far-end server, judge the temperature of fiber grating composite insulator feedback again according to these signals by far-end server, stress signal is by surrounding environment institute effect, thereby to the temperature that records, stress signal is revised, and then improves the accuracy that records signal.Therefore the utility model be difficult for affected by environment, measurement effect is better, degree of accuracy is higher.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the logical schematic of data processing in the utility model.
Among the figure: fiber grating composite insulator 1, outlet optical fiber 11, analysis on temperature stress device 2; aided measurement device 3, Temperature Humidity Sensor 31, wind transducer 32; air velocity transducer 33; 4, numbers jumper terminal protections of Comprehensive Control case box 41, center control enclosure 42; power supply 43; solar panels 431,5, numbers optical cable connecting boxes 51 of Optical Fiber composite overhead Ground Wire; No. two optical cable connecting boxes 52; 6, No. two jumper terminal protections of wireless data transmission unit box 7, joint flange 8; cold connector 9; a wire jumper A, No. two wire jumper B, No. three wire jumper C.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail
Referring to Fig. 1-Fig. 2, a kind of on-line monitoring system of fiber grating composite insulator, this system comprises interconnective fiber grating composite insulator 1 and monitoring device;
Described monitoring device comprises analysis on temperature stress device 2, aided measurement device 3 and is arranged on Comprehensive Control case 4 on the shaft tower;
The inside of described Comprehensive Control case 4 is provided with jumper terminal protection box 41, center control enclosure 42 and power supply 43 No. one, one end of a jumper terminal protection box 41 is connected with the outlet optical fiber 11 on the fiber grating composite insulator 1, and the other end is connected with analysis on temperature stress device 2 by Optical Fiber composite overhead Ground Wire 5; Be connected with aided measurement device 3 and wireless data transmission unit 6 on the described center control enclosure 42.
Described aided measurement device 3 comprises Temperature Humidity Sensor 31, wind transducer 32 and air velocity transducer 33, and described wireless data transmission unit 6 is the GSM antenna, is connected with solar panels 431 on the described power supply 43.
Be provided with jumper terminal protection box 7 between one end of described jumper terminal protection box 41 and the outlet optical fiber 11 No. two; one end of these No. two jumper terminal protection boxes 7 is connected with outlet optical fiber 11, and the other end is connected with an end of a jumper terminal protection box 41 by a wire jumper A.
Be provided with optical cable connecting box 51 No. one between the other end of described jumper terminal protection box 41 and the Optical Fiber composite overhead Ground Wire 5, be provided with No. two optical cable connecting box 52 between the other end of Optical Fiber composite overhead Ground Wire 5 and the analysis on temperature stress device 2; A described optical cable connecting box 51 is connected with the other end of a jumper terminal protection box 41 by No. two wire jumper B, and No. two optical cable connecting box 52 is connected with analysis on temperature stress device 2 by No. three wire jumper C.
The inside of described jumper terminal protection box 41, No. two jumper terminal protection boxes 7 is provided with the joint flange 8 that wiring is used; The inside of a described optical cable connecting box 51, No. two optical cable connecting boxes 52 is provided with the cold connector 9 that wiring is used.
Principle of the present utility model is described as follows:
Exhaustion creep damage capability when the mechanical property of composite insulator is meant the fail in tension load-bearing capacity in short-term of composite insulator and long-time running.It represents the life-span that can also normally move under the situations such as insulator does not rupture, comes off.
The electric property of composite insulator mainly refers to its insulating property, by practical operating experiences as can be known, when the insulating property of insulator take place to destroy, can produce conductive defect, local heating phenomenon occur, and should heating phenomenon can be not in time change and complete obiteration, thereby in conjunction with the characteristics of generating heat, the local pyrexia phenomenon of monitoring insulator just can capture the state of insulator performance change.
Optical fiber sensing technology be follow the development of light transmitting fiber and Fibre Optical Communication Technology and develop rapidly a kind of be that carrier, optical fiber are the novel sensing technology of medium, perception and transmission outer signals with light.Fiber Bragg grating sensor is with the functional Fibre-Optic Sensors of Bragg grating as sensitive element, its sensing principle is a photosensitivity of utilizing fiber optic materials, space interference striped with ultraviolet light forms the space phase grating in fibre core, according to extraneous physical parameter the influence of reflecting Bragg grating centre wavelength is come the extraneous physical values of inverse detection.The influential physical quantity of Bragg grating centre wavelength there are two kinds: temperature and stress, and the variation of Bragg grating centre wavelength and temperature, stress are all linear, because the insulativity of optical fiber itself, light signal is not subject to characteristics such as electromagnetic environment influence, therefore Fiber Bragg Grating FBG is implanted stress and the variation of temperature that can effectively monitor insulator in the insulator, do not influence the application of insulator in hyperbaric environment simultaneously.
The utility model is caught these characteristics of Fiber Bragg Grating FBG just, it is combined with insulator, thereby produce the fiber grating composite insulator, produces the on-line monitoring system of fiber grating composite insulator more based on this.Whole process is mainly as follows:
At first, produce the insulator of band Fibre Optical Sensor, be about to Fibre Optical Sensor and be implanted in the plug of insulator, produce the composite insulator of band Fibre Optical Sensor.
Secondly, the monitoring equipment of development Fibre Optical Sensor, the output of promptly considering Fibre Optical Sensor is light signal, thereby need convert light signal to electric signal for Computer Processing by the optical sensor monitoring system.
Once more, the transmission of transducing signal is in the use, insulator is hung on the high-pressure tower, and the input and output of the Fibre Optical Sensor of insulator inside all are light signals, and light signal passes through Optical Fiber composite overhead Ground Wire, as OPGW optical channel etc., be sent to the light sensing and monitoring system of point of presence.
At last, insulator state is analyzed, promptly the data of Fibre Optical Sensor are handled by computing machine, obtain the stress and the temperature distribution history of insulator, again according to the mechanical property of insulator and the standard of electrical specification, whether stress and the temperature of judging insulator be normal, and then obtain the real-time status of composite insulator.
The core of native system is the state of monitoring insulator by the mode of light sensing, by aided measurement device the signal that records is revised simultaneously, be mainly concerned with the application of cross disciplines such as optical communication, compound substance life prediction, can monitor by real-time under the situation of electrification in high voltage, glitch-free composite insulator transmission line of electricity.
Referring to figure 1 – Fig. 2; during use; the Fibre Optical Sensor signal that fiber grating composite insulator 1 sends is successively by outlet optical fiber 11; No. two jumper terminal protection boxes 7; a jumper terminal protection box 41; an optical cable connecting box 51; Optical Fiber composite overhead Ground Wire 5; No. two optical cable connecting box 52 arrives analysis on temperature stress device 2; temperature on this Fibre Optical Sensor signal indication insulator; the pairing wavelength variation data of stress; be converted to corresponding temperature by analysis on temperature stress device 2 wavelength variation data that the Fibre Optical Sensor signal is represented again; stress value; then with this temperature; stress value is delivered to far-end server; simultaneously by Temperature Humidity Sensor 31; wind transducer 32; air velocity transducer 33 records the temperature of surrounding environment; humidity; wind direction and wind speed; again by wireless data transmission unit 6 with temperature; humidity; wind direction and wind velocity signal pass to far-end server; again by the temperature of far-end server according to the surrounding environment that records; humidity; wind direction and wind speed are judged temperature on the insulator; stress value is subjected to the degree of surrounding environment influence; then to the temperature of the insulator that passes over; stress value is revised; thereby obtain temperature accurately; stress value; then with revised temperature; stress value is the substitution temperature respectively; stress algorithm model is separately judged; if each point normally then judge to finish; if there is undesired point to occur; then earlier undesired point is carried out failure modes; failure judgement is only the end of deterministic process at last to the insulator Effect on Performance again.
Therefore, the monitoring method of the optical fiber composite insulator that native system adopted can be avoided regular pick test, can realize real-time monitoring to the composite insulator situation, simultaneously can be by online optical fiber composite insulator monitoring system should be used for setting up composite insulator status monitoring net, thereby set about carrying out the scheme of " instructing insulator to change " with status monitoring, to replace " plan sampling ", the maintenance pattern of " timing sampling ", grasp the deterioration rule of electrical network main grid structure power transmission and transformation insulator, thereby prevention, reduce and fall string, the generation of flashover fault, and do not need to resemble the prior art requirement according to national grid " nominal voltage be higher than 1000V exchange overhead transmission line use guide rule DL/T864-2004 " with composite insulator, per 1 – maked an inspection tour in 2 months, per 3 – delivered to testing laboratory from shaft tower extraction insulator in 5 years and carry out service check, in addition, native system carries out in real time composite insulator under situation about not having a power failure, on-line monitoring, can prevent string, lead lands, the generation of flashover fault, operation to electrical network provides safety guarantee, and also the quality of life for development and national economy and broad masses of the people provides safeguard.This project advantage the most intuitively is to save manpower, financial resources in a large number, can also monitor the manual measurement method accurately and be difficult to or real-time machinery and the electric property of immeasurable composite insulator, has solved the variety of issue that the manual measurement method is brought.Filled up the blank in domestic this field.
Claims (5)
1. the on-line monitoring system of a fiber grating composite insulator, this system comprises interconnective fiber grating composite insulator (1) and monitoring device, it is characterized in that:
Described monitoring device comprises analysis on temperature stress device (2), aided measurement device (3) and is arranged on Comprehensive Control case (4) on the shaft tower;
The inside of described Comprehensive Control case (4) is provided with jumper terminal protection box (41), center control enclosure (42) and power supply (43) No. one, one end of a jumper terminal protection box (41) is connected with the outlet optical fiber (11) on the fiber grating composite insulator (1), and the other end is connected with analysis on temperature stress device (2) by Optical Fiber composite overhead Ground Wire (5); Be connected with aided measurement device (3) and wireless data transmission unit (6) on the described center control enclosure (42).
2. the on-line monitoring system of a kind of fiber grating composite insulator according to claim 1, it is characterized in that: described aided measurement device (3) comprises Temperature Humidity Sensor (31), wind transducer (32) and air velocity transducer (33), described wireless data transmission unit (6) is the GSM antenna, is connected with solar panels (431) on the described power supply (43).
3. the on-line monitoring system of a kind of fiber grating composite insulator according to claim 1 and 2; it is characterized in that: be provided with jumper terminal protection box (7) between an end of described jumper terminal protection box (41) and the outlet optical fiber (11) No. two; one end of these No. two jumper terminal protection boxes (7) is connected with outlet optical fiber (11), and the other end is connected by the end of a wire jumper (A) with a jumper terminal protection box (41).
4. the on-line monitoring system of a kind of fiber grating composite insulator according to claim 3, it is characterized in that: be provided with an optical cable connecting box (51) between the other end of described jumper terminal protection box (41) and the Optical Fiber composite overhead Ground Wire (5), be provided with No. two optical cable connecting boxes (52) between the other end of Optical Fiber composite overhead Ground Wire (5) and the analysis on temperature stress device (2); A described optical cable connecting box (51) is connected by the other end of No. two wire jumpers (B) with a jumper terminal protection box (41), and No. two optical cable connecting boxes (52) are connected with analysis on temperature stress device (2) by No. three wire jumpers (C).
5. the on-line monitoring system of a kind of fiber grating composite insulator according to claim 4 is characterized in that: the inside of described jumper terminal protection box (41), No. two jumper terminal protection boxes (7) is provided with the joint flange (8) that wiring is used; The inside of a described optical cable connecting box (51), No. two optical cable connecting boxes (52) is provided with the cold connector (9) that wiring is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205362909U CN201803820U (en) | 2010-09-20 | 2010-09-20 | On-line monitoring system of fiber-grating compounded insulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205362909U CN201803820U (en) | 2010-09-20 | 2010-09-20 | On-line monitoring system of fiber-grating compounded insulator |
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| CN201803820U true CN201803820U (en) | 2011-04-20 |
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| CN2010205362909U Expired - Lifetime CN201803820U (en) | 2010-09-20 | 2010-09-20 | On-line monitoring system of fiber-grating compounded insulator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949986A (en) * | 2010-09-20 | 2011-01-19 | 华中电网有限公司 | System for online monitoring fiber grating composite insulator and using method thereof |
| CN103941126A (en) * | 2014-04-24 | 2014-07-23 | 深圳供电局有限公司 | Heat convection testing method and system for composite insulator including artificial defect |
| CN114039658A (en) * | 2021-11-12 | 2022-02-11 | 国网河南省电力公司邓州市供电公司 | Intelligent optical fiber monitoring system based on coherent light |
-
2010
- 2010-09-20 CN CN2010205362909U patent/CN201803820U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949986A (en) * | 2010-09-20 | 2011-01-19 | 华中电网有限公司 | System for online monitoring fiber grating composite insulator and using method thereof |
| CN103941126A (en) * | 2014-04-24 | 2014-07-23 | 深圳供电局有限公司 | Heat convection testing method and system for composite insulator including artificial defect |
| CN114039658A (en) * | 2021-11-12 | 2022-02-11 | 国网河南省电力公司邓州市供电公司 | Intelligent optical fiber monitoring system based on coherent light |
| CN114039658B (en) * | 2021-11-12 | 2024-02-09 | 国网河南省电力公司邓州市供电公司 | Intelligent optical fiber monitoring system based on coherent light |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430077 No. 47 Xu Dong Road, Wuchang District, Hubei, Wuhan Co-patentee after: WUHAN KPCQ SOFTWARE TECHNOLOGY CO., LTD. Patentee after: Huazhong Electric Power Network Co., Ltd. Address before: 430077 No. 47 Xu Dong Road, Wuchang District, Hubei, Wuhan Co-patentee before: Wuhan Kangpu Changqing Software Technology Co., Ltd. Patentee before: Huazhong Electric Power Network Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |
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| CX01 | Expiry of patent term |