CN101750262B - Quartz sensor system for measuring deposit density of high-tension transmission line - Google Patents
Quartz sensor system for measuring deposit density of high-tension transmission line Download PDFInfo
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- CN101750262B CN101750262B CN2008101829755A CN200810182975A CN101750262B CN 101750262 B CN101750262 B CN 101750262B CN 2008101829755 A CN2008101829755 A CN 2008101829755A CN 200810182975 A CN200810182975 A CN 200810182975A CN 101750262 B CN101750262 B CN 101750262B
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Abstract
A quartz sensor system for measuring the deposit density of a high-tension transmission line comprises a quartz sensor, a wireless network and a terminal computer, wherein the quartz sensor is in signal connected with the wireless network, and the wireless network is in signal connection with the terminal computer. The quartz sensor comprises a driver, a laser, a Y-shaped optical fiber bundle, a filter, a coupler, a quartz glass bar, an equivalent processor, a terminal optical fiber bundle, a first photoelectric transformer, and a second photoelectric transformer and a base plate, wherein the output end of the driver is connected with the laser; the output end of the laser is connected with the Y-shaped optical fiber bundle; the first output end of the Y-shaped optical fiber bundle is connected with the first photoelectric transformer; the second output end of the Y-shaped optical fiber bundle is connected with the filter; the output end of the filter is connected with the quartz glass bar; the outer surface of the quartz glass bar is provided with the equivalent processor, and the tail end of the quartz glass bar is sequentially connected with the terminal optical fiber bundle and the second photoelectric transformer by the coupler; and the two photoelectric transformers are connected with the base plate. The invention can realize the accurate, real-time, and online monitoring of the insulator.
Description
Technical field the present invention relates to a kind of measurement mechanism that is used on the ultra-high-tension power transmission line, specifically a kind of quartz sensor system that is used to measure deposit density of high-tension transmission line.
The background technology overhead transmission line is in operational process, and various particulates such as airborne dust, saline and alkaline, industrial fumes or birds droppings all can be deposited in the insulator outside surface and form pollution layer; The contamination of insulator is meant the saturation value that the rear surface filth of insulator operation certain hour is reached, and promptly adheres to the filthy of insulator surface and fallen the dynamic equilibrium state that is reached with the filth that is blown away by rain drop erosion on macroscopic view.The pollution level of insulator is relevant with factors such as its moulding, the filthy kind of environment and degree, near the weather conditions of circuit, and in whole contamination process, when the self-cleaning action that is subjected to rainwater, the filthy indentation of insulator surface descends, and then rises gradually.Filthy before the value of not reaching capacity, total trend is propradation, till the value of reaching capacity.
The filth of high pressure insulator surface comprises soluble components and insoluble composition, wherein the content of soluble component is represented with salt close (equivalent salt density degree ESDD), ash close (non-solvable precipitate density NSDD) is meant that adhering to insulator surface can not be dissolved in the result of the material of water divided by surface area, is used for the non-solvable residue content of quantificational expression insulator surface.
The filth of high pressure insulator surface, particularly grey close safe operation to electric system produces serious influence, and therefore, requires periodic monitoring and cleans the grey close of insulator surface.Traditional grey close detection method is: at first with line outage, manually clean the insulator surface filth, utilize day gentle filter paper to measure water-fast ash weight then.The whole observation process time is long, and labour intensity is big, and measurement data is disperseed, and can not follow the tracks of grey close changing condition in time again.
Accurately measure grey close value,, correctly mark off the gradation for surface pollution of working line in conjunction with local operating experience of electrical network and dirty moisture performance, particularly important for the safe operation of electrical network.And grey close measurement is classified as emphasis in the antifouling daily management mission by each province's net company, traditional grey density test method need expend great amount of manpower and material resources, financial resources, the data of surveying can only reflect certain the fixing grey ciphertext data of period, metering system is subject to weather simultaneously, personnel's level is limit, error is bigger, in addition, a large amount of work high above the ground has certain danger during measurement.Along with the development of modernized monitoring technology, be badly in need of a kind ofly can reaching the close metering system of real-time, continuous, online, accurate measurement operation insulator ash.
Summary of the invention the object of the present invention is to provide a kind of quartz sensor system that is used to measure deposit density of high-tension transmission line, and this system has realized the grey close of real-time, continuous, online, accurate measurement operation insulator surface.
The present invention realizes that the technical scheme that above-mentioned purpose takes is as follows: a kind of quartz sensor system that is used to measure deposit density of high-tension transmission line is characterized in that it comprises quartz transducer, wireless network and terminal computer; Quartz transducer with terminal computer between be connected by wireless network signal; Transmission detects data.
Quartz transducer comprises driver, laser instrument, Y shape fibre bundle, wave filter, quartz glass bar, equivalent process device, coupling mechanism, terminal fibre bundle, first photoelectric transformer, second photoelectric transformer and substrate;
Driver output end is connected with laser instrument, and laser output is connected with Y shape fibre bundle; First output terminal of Y shape fibre bundle is connected with first photoelectric transformer; Second output terminal of Y shape fibre bundle is connected with wave filter, filter output is connected with quartz glass bar, the outside surface of quartz glass bar is equipped with the equivalent process device, and the quartz glass bar end is connected with the terminal fibre bundle through coupling mechanism, and terminal fibre bundle output terminal is connected with second photoelectric transformer; First photoelectric transformer and second photoelectric transformer are all joined with substrate.
Substrate is made up of data comparison module COMP, data processing module PROCESS, data transmission module TRANS; Data comparison module is connected with data processing module, and data processing module is connected with data transmission module, and data transmission module is connected with wireless network signal.
During use, quartz transducer is hanging on the relatively more serious transmission line of electricity of environment filth, soon quartz transducer is placed on the high-tension line insulator and is in the atmospheric environment of identical pollution, so, the suffered pollution level of the suffered pollution level of quartz transducer and insulator is identical, by quartz transducer the grey close value of environment is measured, and will record data by the gsm wireless Network Transmission to the enterprising row operation analysis of the terminal computer on backstage, thereby the variation by correlation parameter reflects on-the-spot grey close variation.
In the use, can regularly carry out on-the-spot manual measurement,, guarantee the consistance of both data by quartz transducer measurement data and manual measurement data are compared test to quartz transducer overhang region electric transmission line isolator pollution level.
Core inventive point of the present invention is a quartz transducer, and ultimate principle as shown in Figure 3.It utilizes the evanescent field in the multimode dielectric optical waveguide to realize sensing.It is that core, atmosphere are the multimode dielectric optical waveguide of covering with the rod that the low-loss quartz glass bar that places atmosphere is one.It is by basic mode and the common transmitting optical power of higher mode.Main luminous power is transmitted in the core of waveguide by basic mode, and the fraction luminous power will be transmitted along core bag interface.It will have the fraction luminous power to enter in the atmosphere, progressive luminous power in the waveguide that Here it is, and quartzy sensor-based system utilizes it to come the sensing ash close exactly.When not having filth on the quartz glass bar, owing to the refractive index of quartzy refractive index greater than air, its loss is very little, and the output work of quartz glass bar is constant substantially; When on the quartz glass bar filth being arranged, owing to the refractive index of filthy refractive index greater than quartz, the total reflection transmission conditions that it has destroyed light produce loss.Therefore, change just to detect filthy size by the loss that detects then the Output optical power by quartz glass bar, just can obtain grey close value by integrated digital processing to various environmental parameters.Seeing through quartz glass bar, to enter atmospheric luminous power size relevant with multiple factor, diameter, refractive index, loss, numerical aperture and laser light wavelength etc. as the composition of filth, the luminous power of transmitting in quartz glass bar, quartz glass bar are all multifactor relevant, and the acting in conjunction of these factors has determined the close sensitivity of light sensing measurement ash.
The present invention utilizes the luminous energy parameter of monitoring quartz transducer to change, the calculated with mathematical model that foundation has corresponding relation draws the grey close of insulator surface, utilize traditional personal monitoring's method to carry out the data contrast simultaneously, through continuous correction, realize on-line monitoring to the transmission line of electricity pollution level to mathematical model.
Newly issue enterprise's mark " dirty differentiation level of electric system and external insulation choice criteria " according to state net company, require to adopt saturated filthy degree to replace the close external insulation that instructs of annual salt and dispose.After saturated filthy degree is meant 3～5 years contaminations of insulator continuous working, the maximum filthy degree when reaching mobile equilibrium.Compare uncertainty, the destructiveness of experiment method and the personal error of manual measurement that manual method measures the time, native system can accurately be caught the saturated filthy degree during the contamination, for newly-built project of transmitting and converting electricity provides the external insulation design considerations; Grasp the contamination rule of electrical network main grid structure power transmission and transforming equipment, thus the generation of prevention, minimizing pollution flashover accident.
The present invention under situation about not having a power failure to ash closely carry out in real time, on-line monitoring, can prevent the generation of electrical network " pollution flashover " accident, provide safety guarantee to the operation of electrical network, also the quality of life for development and national economy and broad masses of the people provides safeguard.The present invention's advantage the most intuitively is to save manpower, financial resources in a large number, can also monitor the manual measurement method accurately is difficult to or immeasurable saturated filthy degree and real-time status filth degree, solved the variety of issue that the manual measurement method is brought, the close monitoring of realization insulator ash that can be accurate, real-time, online.
Description of drawings Fig. 1 is a composition synoptic diagram of the present invention
Fig. 2 is the structural representation of quartz transducer,
Fig. 3 is quartz transducer ultimate principle figure.
Among the figure: the 1-GSM wireless network, the 2-quartz transducer, the 201-driver, the 202-laser instrument, 203-Y shape fibre bundle, the 204-wave filter, the 205-quartz glass bar, 206-equivalent process device, 207-terminal fibre bundle, 208-first photoelectric transformer, 209-second photoelectric transformer, the 210-substrate, 211-data comparison module COMP, 212-data processing module PROCESS, 213-data transmission module TRANS, the 214-coupling mechanism, the 3-terminal computer, the 4-iron tower, the 01-lasing light emitter, 02-exports light, the E1-basic mode, the E2-higher mode, the W1-dunghill, the W2-dunghill.
Embodiment is as shown in Figure 1: a kind of quartz sensor system that is used to measure deposit density of high-tension transmission line is characterized in that it comprises quartz transducer 2, gsm wireless network 1 and the terminal computer 3 that is suspended on each iron tower of power transmission line 4; Be connected by gsm wireless network 1 signal between quartz transducer 2 and the terminal computer 3; Mutual transmission signals.
Referring to Fig. 2: quartz transducer 2 comprises driver 201, laser instrument 202, Y shape fibre bundle 203, wave filter 204, quartz glass bar 205, equivalent process device 206, terminal fibre bundle 207, coupling mechanism 214, first photoelectric transformer 208, second photoelectric transformer 209 and substrate 210;
Driver 201 output terminals are connected with laser instrument 202, and laser instrument 202 output terminals are connected with Y shape fibre bundle 203; First output terminal of Y shape fibre bundle 203 is connected with second photoelectric transformer 209; Second output terminal of Y shape fibre bundle 203 is connected with wave filter 204, wave filter 204 output terminals are connected with quartz glass bar 205, the outside surface of quartz glass bar 205 is equipped with equivalent process device 206, the quartz glass bar 205 terminal coupling mechanisms 214 that pass through are connected with terminal fibre bundle 207, and terminal fibre bundle 207 output terminals are connected with first photoelectric transformer 208; First photoelectric transformer 208 and second photoelectric transformer 209 are all joined with substrate 210.As the equivalent process device 206 that can be able to change the light sensitive face, be used to improve the measuring accuracy in the user's request measurement range.
Substrate 210 is made up of data comparison module COMP211, data processing module PROCESS212, data transmission module TRANS213; Data comparison module 211 is connected with data processing module 212, and data processing module 212 is connected with data transmission module 213, and data transmission module 213 is connected with gsm wireless network 1 signal.
Laser instrument produces the laser power of high stable under the driving of driver, enter quartz glass bar through first output terminal, the wave filter of Y shape fibre bundle.Deliver to second photoelectric transformer through equivalent process device, terminal fibre bundle again, light signal is converted to electric signal P1, enter substrate, be provided for the information of comparison by second photoelectric transformer.When on the quartz glass bar filth being arranged, the luminous power that enters second photoelectric transformer reduces, and reflects that it has been subjected to filthy influence.Another road laser power that laser instrument produces is delivered to first photoelectric transformer through second output terminal of Y shape fibre bundle, by first photoelectric transformer light signal is converted to electric signal P2, enters substrate, and P2 is as the Back ground Information that is used for comparison; Electric signal P1 and electric signal P2 are sent to the terminal computer of Surveillance center via the gsm wireless network by data transmission module TRANS after data comparison module COMP, data processing module PROCESS handle, carry out integrated digital by terminal computer in conjunction with parameters such as humidity, temperature and handle, obtain grey close value.
Referring to Fig. 3: the transmission route that arrow among the figure and inner dotted line and double-lined arrow have all been represented light.The whole body of quartz glass bar and atmosphere forms an optical conductor; Lasing light emitter is decomposed into basement membrane E1 and higher mode E2 after entering quartz glass bar; Overwhelming majority power is along quartz glass bar transmission (basement membrane) in the time of light transmission, and the surface of contact along quartz glass bar and air transmits (higher mode) on a small quantity; The pollution level of surface filth thing W1 and W2 has influenced optical index, forms different power attenuations, causes exporting light O2 and changes; Detect output light O2 power attenuation and judge filthy size, obtain grey close value by the integrated digital of environmental parameter is handled, and draw filthy distribution plan.
Be sensitivity and the degree of accuracy that guarantees grey close sensing, at first will guarantee the laser output power of high stable; The wavelength of laser instrument is relevant with the sensitivity of measurement, at present, 650nm, 850nm, 1300nm, the semiconductor laser of 1550nm wavelength can be used, and selects to use according to different applied environments and request for utilization.For guaranteeing the stability of Output optical power, preferably adopt the laser driver of high stability, it can guarantee that laser instrument obtains the output power that requires in the allowable temperature variation range.
Next is to reduce the laser coupled loss and take to filter mould; The broad area laser output power is coupled in the sensor quartz glass bar, it should guarantee quite little coupling loss, guarantees the stability of through-put power again.Said Y shape fibre bundle and terminal fibre bundle are made up of thousands of optical fiber, and according to the energy distribution pattern of Laser Transmission, sort and the array combination.Fibre bundle is the Y type, and it is divided into two parts with laser energy, and a part is sent into quartz glass bar, and another part carries out FEEDBACK CONTROL as reference.In addition, because the laser power that is coupled in the quartz glass bar is made up of many patterns, pattern is high more, and the decay when transmission is big more, transmits unstable more.In order to obtain importing the stability of the laser power in the quartz glass bar, a wave filter 204 is connected Y shape fibre bundle 203 with quartz glass bar 205 end faces.Guaranteed the stability of luminous power transmission in the quartz glass bar.
In order in the light sensing element quartz glass bar, to obtain stable light transmission; Select the low-loss silica glass material of high-quality to make quartz glass bar, preferably purity reaches 99.99% quartz material, and the influence of the loss of quartz glass bar can be ignored in application basically.
Having provided embodiments of the present invention above, but do not meaned limitation of the present invention, also can be the GPRS/CDMA wireless network as said wireless network.
Claims (5)
1. quartz sensor system that is used to measure deposit density of high-tension transmission line, it is characterized in that: it comprises quartz transducer (2), wireless network (1) and terminal computer (3); Be connected by described wireless network (1) signal between described quartz transducer (2) and the described terminal computer (3); Mutual transmission signals.
2. a kind of quartz sensor system that is used to measure deposit density of high-tension transmission line as claimed in claim 1 is characterized in that: described quartz transducer (2) comprises driver (201), laser instrument (202), Y shape fibre bundle (203), wave filter (204), quartz glass bar (205), equivalent process device (206), terminal fibre bundle (207), coupling mechanism (214), first photoelectric transformer (208), second photoelectric transformer (209) and substrate (210); Described driver (201) output terminal is connected with described laser instrument (202), and described laser instrument (202) output terminal is connected with described Y shape fibre bundle (203); First output terminal of described Y shape fibre bundle (203) is connected with described second photoelectric transformer (209); Second output terminal of described Y shape fibre bundle (203) is connected with described wave filter (204), described wave filter (204) output terminal is connected with described quartz glass bar (205), the outside surface of described quartz glass bar (205) is equipped with described equivalent process device (206), described quartz glass bar (205) is terminal to be connected with described terminal fibre bundle (207) by described coupling mechanism (214), and described terminal fibre bundle (207) output terminal is connected with described first photoelectric transformer (208); Described first photoelectric transformer (208) and described second photoelectric transformer (209) are all joined with described substrate (210).
3. a kind of quartz sensor system that is used to measure deposit density of high-tension transmission line as claimed in claim 1 is characterized in that: described substrate (210) is made up of data comparison module COMP (211), data processing module PROCESS (212), data transmission module TRANS (213); Described data comparison module (211) is connected with described data processing module (212), and described data processing module (212) is connected with described data transmission module (213), and described data transmission module (213) is connected with described gsm wireless network (1) signal.
4. as claim 1,2 or 3 described a kind of quartz sensor systems that are used to measure deposit density of high-tension transmission line, it is characterized in that: described quartz glass bar (205) is that purity is 99.99% quartz material.
5. a kind of quartz sensor system that is used to measure deposit density of high-tension transmission line as claimed in claim 4 is characterized in that: described wireless network (1) is the GSM/GPRS/CDMA wireless network.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103234939A (en) * | 2013-04-27 | 2013-08-07 | 南方电网科学研究院有限责任公司 | Sensor for measuring optical pollution of charged insulator |
| CN103234982A (en) * | 2013-04-27 | 2013-08-07 | 南方电网科学研究院有限责任公司 | Processing method for plastic optical fiber sensor |
| CN103234983A (en) * | 2013-04-27 | 2013-08-07 | 南方电网科学研究院有限责任公司 | Contamination monitoring device for electric transmission line insulators |
| CN103604811B (en) * | 2013-12-15 | 2016-03-23 | 张季红 | The filthy sensing device of a kind of electric transmission line isolator |
| CN104266634B (en) * | 2014-09-26 | 2017-01-25 | 西安工程大学 | On-line monitoring system for non-soluble deposit density of insulator of power transmission line and monitoring method of online monitoring system |
| CN104730036B (en) * | 2015-03-13 | 2017-05-17 | 华北电力大学（保定） | Dust density detection device and dust density detection method on power transmission line |
| CN105973813B (en) * | 2016-06-30 | 2018-08-31 | 广州长川科技有限公司 | A kind of binary channels light sensing insulator salt density monitoring system and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101265A (en) * | 2007-08-02 | 2008-01-09 | 国网武汉高压研究院 | Power transmission and transformation equipment outer insulation equivalent ash deposit density measuring method and device |
| CN201319008Y (en) * | 2008-12-15 | 2009-09-30 | 甘肃省电力公司金昌供电公司 | Non-soluble deposit density measurement device for high-voltage transmission line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101265A (en) * | 2007-08-02 | 2008-01-09 | 国网武汉高压研究院 | Power transmission and transformation equipment outer insulation equivalent ash deposit density measuring method and device |
| CN201319008Y (en) * | 2008-12-15 | 2009-09-30 | 甘肃省电力公司金昌供电公司 | Non-soluble deposit density measurement device for high-voltage transmission line |
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Effective date of registration: 20130319 Address after: 737100 No. 78, Xinhua Road, Gansu, Jinchang Patentee after: Jinchang Power Supply Company of Gansu Electric Power Corporation Patentee after: Wuhan Kangpu Changqing Software Technology Co., Ltd. Patentee after: State Grid Corporation of China Address before: 737100 No. 78, Xinhua Road, Gansu, Jinchang Patentee before: Jinchang Power Supply Company of Gansu Electric Power Corporation Patentee before: Wuhan Kangpu Changqing Software Technology Co., Ltd. |