CN101609125A - A kind of system for monitoring leads of ultra-high voltage power transmission lines - Google Patents
A kind of system for monitoring leads of ultra-high voltage power transmission lines Download PDFInfo
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- CN101609125A CN101609125A CNA2009101512364A CN200910151236A CN101609125A CN 101609125 A CN101609125 A CN 101609125A CN A2009101512364 A CNA2009101512364 A CN A2009101512364A CN 200910151236 A CN200910151236 A CN 200910151236A CN 101609125 A CN101609125 A CN 101609125A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
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- 230000005611 electricity Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 11
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- 239000004020 conductor Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
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- 229910052742 iron Inorganic materials 0.000 claims description 4
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- 230000035945 sensitivity Effects 0.000 claims description 3
- 230000000246 remedial effect Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
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- 239000011888 foil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Abstract
The invention provides a kind of leads of ultra-high voltage power transmission lines thermometric monitoring system, comprise wire temperature sensor, central data processing unit and backstage analytic system; Described wire temperature sensor is installed on lead node place or the gold utensil, is used to measure the temperature of lead, and by wireless communication networks described temperature is sent to described central data processing unit; Described central data processing unit is used for described temperature is carried out analog to digital conversion, and the packing back is sent to described backstage analytic system by wireless communication networks; Described backstage analytic system, the transmission capacity that lead allows when being used to utilize described temperature and transmission line of electricity calculation of design parameters different temperatures when the transmission capacity of lead reaches upper limit danger critical value, sends warning message.The circuit allocation personnel can in time adopt remedial measures.Can guarantee the normal operation of UHV transmission line like this.
Description
Technical field
The present invention relates to the extra-high voltage technical field, particularly a kind of system for monitoring leads of ultra-high voltage power transmission lines.
Background technology
Because the developable hydroelectric resources of China nearly 2/3 is in western part, coal resources 2/3 in Shanxi, Shaanxi and the Inner Mongol; But the power load of China 2/3 but is distributed in the developed area of the coastal and Beijing-Guangzhou Railway in east to the east of along the line.Like this, just need be delivered to the big area, the central and east of electricity needs to the electric weight of energy base generating.
In order to reduce transmission losses, improve the transmission of electricity quality, China begins to develop the UHV transmission technology at present.Ultra-high voltage AC transmission is meant the ac transmission engineering and the correlation technique of 1000kV and above electric pressure.Characteristics such as the UHV transmission technology has at a distance, high capacity, low-loss and economy.
Whether but the electric pressure of UHV transmission line is very high, so just need the lead transmission capacity of monitoring UHV transmission line normal, to avoid power transmission failure.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of system for monitoring leads of ultra-high voltage power transmission lines, and whether the lead transmission capacity that can monitor UHV transmission line is normal.
The invention provides a kind of leads of ultra-high voltage power transmission lines thermometric monitoring system, comprise wire temperature sensor, central data processing unit and backstage analytic system;
Described wire temperature sensor is installed on lead node place or the gold utensil, is used to measure the temperature of lead, and by wireless communication networks described temperature is sent to described central data processing unit;
Described central data processing unit is used for described temperature is carried out analog to digital conversion, and the packing back is sent to described backstage analytic system by wireless communication networks;
Described backstage analytic system, the transmission capacity that lead allows when being used to utilize described temperature and transmission line of electricity calculation of design parameters different temperatures when the transmission capacity of lead reaches upper limit danger critical value, sends warning message.
Preferably, described wire temperature sensor is installed on lead node place or the gold utensil and is specially:
Described wire temperature sensor is fixed on lead node place or the gold utensil by base.
Preferably, described wire temperature sensor is powered by the lead electricity getting device, and described lead electricity getting device is installed on the lead.
Preferably, also comprise environment temperature sensor and sunshine recorder;
Described environment temperature sensor and described sunshine recorder are installed on the electric power line pole tower, are respectively applied for measures ambient temperature and intensity of sunshine; And the described environment temperature that will measure and intensity of sunshine are sent to described central data processing unit by the double layer screen line;
Described central data processing unit carries out analog to digital conversion with described environment temperature and intensity of sunshine, and the packing back is sent to the backstage analytic system by wireless network;
Described environment temperature and intensity of sunshine after the analytic system utilization conversion of described backstage compensate conductor temperature.
Preferably, described environment temperature sensor and intensity of sunshine sensor are by storage battery power supply, and described accumulator charges by solar panel.
Preferably, the shielding of the skin of described double layer screen line is the iron head ground connection of the insulator of electric power pylon;
The internal layer shielding of described double layer screen line is sensing station ground connection.
Preferably, the measurement range of described wire temperature sensor is :-55 ℃～+ 125 ℃; Precision is: ± 0.5 ℃; The measurement range of described environment temperature sensor is :-50 ℃～+ 75 ℃, sensitivity is: 0.5 ℃.
The transmission capacity that lead allowed when preferably, described backstage analytic system was utilized described temperature and transmission line of electricity calculation of design parameters different temperatures is specially: R=W+Ld+g*V;
Wherein, R represents the transmission capacity that lead allows; W represents the tracerse survey temperature; Ld represents the environment temperature parameter; G represents the circuit division number; V representative voltage grade.
Preferably, the outside of described wire temperature sensor, environment temperature sensor and intensity of sunshine sensor is equipped with shielding box, is used to avoid the interference of extra-high voltage strong-electromagnetic field.
Preferably, described wireless communication networks is global system for mobile communications, CDMA or GPRS.
Compared with prior art, the present invention has the following advantages:
System for monitoring leads of ultra-high voltage power transmission lines provided by the invention, the temperature that wire temperature sensor is used for measuring lead is set on transmission pressure or the gold utensil, send described temperature to the central data processing unit by wireless communication networks, the temperature after the central data processing unit is changed by the cordless communication network transmission is to the backstage analytic system.Whether the transmission capacity of lead surpassed the dangerous critical value of the upper limit when backstage analytic system was calculated different temperatures, if then send warning message.The circuit allocation personnel can in time adopt remedial measures.Can guarantee the normal operation of UHV transmission line like this.
Description of drawings
Fig. 1 is the system for monitoring leads of ultra-high voltage power transmission lines first embodiment synoptic diagram of the present invention;
Fig. 2 is the system for monitoring leads of ultra-high voltage power transmission lines second embodiment synoptic diagram of the present invention;
Fig. 3 is system for monitoring leads of ultra-high voltage power transmission lines power principle figure of the present invention;
Fig. 4 is system for monitoring leads of ultra-high voltage power transmission lines microprocessor chip figure of the present invention;
Fig. 5 is a system for monitoring leads of ultra-high voltage power transmission lines clocking scheme of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, this figure is the system for monitoring leads of ultra-high voltage power transmission lines first embodiment synoptic diagram of the present invention.
The embodiment of the invention provides a kind of leads of ultra-high voltage power transmission lines thermometric monitoring system, comprises wire temperature sensor 101, central data processing unit 102 and backstage analytic system 103.
Described wire temperature sensor 101 is installed on lead node place or the gold utensil, is used to measure the temperature of lead, and sends described temperature to described central data processing unit 102 by the double layer screen line.
Described wire temperature sensor is fixed on lead node place or the gold utensil by base.
Need to prove that described wire temperature sensor is provided with at least two on transmission line of electricity, install one from being provided with on one or the line every an end distance.
The characteristics of the wire temperature sensor that adopts in the present embodiment are:
The wire temperature sensor built-in aerial, and volume is little, low in energy consumption.And this sensor has automatic recognition function, can the combined with radio communication network.The principle of work of the wire temperature sensor that adopts in the present embodiment is:
The radio temperature sensor principle of work: radio temperature sensor is used to measure the temperature on charged object surface, as the running temperature of exposed contact in lead and the high-tension switch cabinet and bus junction.Radio temperature sensor is installed on the temperature that conductive line surfaces is measured at lead node place, and measurement result is sent to central data processing unit 102 by wireless communication networks.The measurement range of the described wire temperature sensor that provides in the present embodiment is :-55 ℃～+ 125 ℃; Precision is: ± 0.5 ℃.
Owing to adopt the double layer screen line that the temperature of measuring is sent to the central data processing unit, therefore can shield the interference of extra-high voltage strong-electromagnetic field.
The skin shielding of described double layer screen line is the iron head ground connection of the insulator of electric power pylon; The internal layer shielding of described double layer screen line is described sensing station ground connection.
Described central data processing unit 102 is used for described temperature is carried out analog to digital conversion, and the packing back is sent to described backstage analytic system 103 by wireless communication networks.
Described wireless communication networks comprises global system for mobile communications (GSM, Global System forMobile Communications), CDMA (CDMA, Code-Division Multiple Access) or GPRS (GPRS, General Packet Radio Service).
Described backstage analytic system 103, lead allows when being used to utilize described temperature and transmission line of electricity calculation of design parameters different temperatures transmission capacity and conductor temperature when the transmission capacity of lead reaches upper limit danger critical value, send warning message.
The transmission capacity that lead allowed when described backstage analytic system was utilized described temperature and transmission line of electricity calculation of design parameters different temperatures is specially: R=W+Ld+g*V;
Wherein, R represents the transmission capacity that lead allows; W represents the tracerse survey temperature; Ld represents the environment temperature parameter; G represents the circuit division number; V representative voltage grade.
The system for monitoring leads of ultra-high voltage power transmission lines that present embodiment provides can be measured the temperature of lead in real time, and the transmission capacity that lead allows can calculate the different conductor temperature time, when transmission capacity reaches upper limit danger critical value, send warning message, the transmission line of electricity dispatcher can in time take safety measures, thereby ensures the safe operation of extra-high-speed point electrical network.
The conductor temperature signal that the system for monitoring leads of ultra-high voltage power transmission lines that above embodiment provides is measured adopts the double layer screen line can prevent the interference of extra-high voltage strong-electromagnetic field in transmission course, thereby conductor temperature is measured accurately.
Referring to Fig. 2, this figure is the system for monitoring leads of ultra-high voltage power transmission lines second embodiment synoptic diagram of the present invention.
The system for monitoring leads of ultra-high voltage power transmission lines that present embodiment provides also comprises environment temperature sensor 201 and intensity of sunshine sensor 202 except comprising wire temperature sensor 101.
Described environment temperature sensor 201 and described intensity of sunshine sensor 202 are installed on the electric power line pole tower, are respectively applied for measures ambient temperature and intensity of sunshine; And the described environment temperature that will measure and intensity of sunshine are sent to described central data processing unit 102 by the double layer screen line.
Need to prove that the connected mode of the double layer screen line in environment temperature sensor and the intensity of sunshine sensor is identical with the connected mode in the wire temperature sensor, does not repeat them here.
All signal cables that leak outside of all the sensors all adopt the double layer screen line in the embodiment of the invention.And, for the input interface of each sensor, all adopted antiseepage, measure such as anti-tampering, be specially: adopt shading ring and aluminum foil and adhesive tape at the sensor interface place to guarantee the reliability of interface.
Described central data processing unit 102 is with described environment temperature and intensity of sunshine carries out analog to digital conversion and the back of packing is sent to backstage analytic system 103 by wireless network.
Owing to the variation of conductor temperature along with intensity of sunshine and environment temperature changes.Therefore, described environment temperature and the intensity of sunshine after the described backstage analytic system 103 utilization conversions compensates conductor temperature.
The measurement range of described environment temperature sensor is :-50 ℃～+ 75 ℃, sensitivity is: 0.5 ℃.
Need to prove that described wire temperature sensor is provided with shielding box outward, be used to avoid the interference of extra-high voltage strong-electromagnetic field.
Described environment temperature sensor and intensity of sunshine sensor are by storage battery power supply, and described accumulator charges by solar panel.
Because wire temperature sensor is installed on lead node or the gold utensil, rather than is installed on the shaft tower as environment temperature sensor, so wire temperature sensor can not adopt storage battery power supply, and the wire temperature sensor of present embodiment utilizes the lead electricity getting device.Described lead electricity getting device is installed on the lead, directly from the lead power taking to come be the wire temperature sensor power supply.
Referring to Fig. 3, this figure is system for monitoring leads of ultra-high voltage power transmission lines power principle figure of the present invention.
The end and the ground connection that are connected capacitor C 17 behind the pin one of power conversion chip and the pin two short circuit respectively, the other end and the anodal BAT+ of power supply that are connected capacitor C 17 behind pin 3 and pin 4 short circuits respectively, the end and the VCC that are connected filter capacitor C19 behind pin 5, pin 6 and pin 7 short circuits respectively, the other end ground connection of filter capacitor C19.
Power supply BAT+ is converted into leads of ultra-high voltage power transmission lines thermometric monitoring system required voltage amount,, and reduces the influence of external interference device for leads of ultra-high voltage power transmission lines thermometric monitoring system provides a stable operating voltage.
Referring to Fig. 4, this figure is system for monitoring leads of ultra-high voltage power transmission lines microprocessor chip figure of the present invention.
The preferred MSP430 chip of microprocessor that the embodiment of the invention adopts.
MSP430 is 16 single-chip microcomputers with super low-power consumption characteristics, the preferred MSP430F149 of present embodiment, and its static current of lcd has reached the mA level.
MSP430 is powerful CPU core: 16 bit CPUs and RISC order set efficiently, do not have the data address bus that extends out, when 8MHz, can reach the instruction cycle of 125ns, have 16 fast response interrupt, can in time handle various emergencies.And MSP430 has the rich functions module: 12 A/D converter.Chip MSP430 is operated under 1.8～3.6V voltage, normal mode of operation AM and 4 kinds of low power mode of operation is arranged, i.e. LPM1, LPM2, LPM3, LPM4 pattern.
Microprocessor can switch between various mode of operations easily.In actual application environment, system can switch the mode of operation of device at any time according to the different ruuning situation in scene.
Mode of operation has high effective model: find to improve when circuit has abnormal conditions frequency of operation in monitoring.
Normal mode: all are normal for this mode declaration pattern specification system works, and the no abnormal situation of the circuit of monitoring takes place.
Low-power consumption mode: system is in automatic protected mode.
Referring to Fig. 5, this figure is a system for monitoring leads of ultra-high voltage power transmission lines clocking scheme of the present invention.
The embodiment of the invention also provides clock circuit for system for monitoring leads of ultra-high voltage power transmission lines, for system provides a time reference.
As shown in Figure 5, the pin one of clock chip connects power supply VCC, and pin two and pin 3 be the two ends of connection oscillator respectively, pin 4 ground connection.
The pin 5 of clock chip, pin 6, pin 7 be pin one 7, pin one 8 pin twos 2 of connection layout 4 microprocessors respectively.
The system for monitoring leads of ultra-high voltage power transmission lines that the embodiment of the invention provides is not only measured the temperature of lead by wire temperature sensor, but also be provided with environment temperature sensor and intensity of sunshine the sensor temperature and the intensity of sunshine of measurement environment in the lump, take all factors into consideration the influence of environment temperature and intensity of sunshine to conductor temperature, thereby accurately measure conductor temperature, and the transmission capacity that lead allowed when microprocessor also calculated the different conductor temperature in conjunction with transmission line of electricity design parameter and lead physical characteristics, like this can be when the lead transmission capacity reaches upper limit danger critical value, send warning message, line arrangement personnel in time take measures, and guarantees the safe operation of UHV transmission line.
All signal cables that leak outside of all the sensors that the system for monitoring leads of ultra-high voltage power transmission lines that the embodiment of the invention provides adopts all adopt the double layer screen line, its ectomesoderm shielding is the iron head ground connection near tower insulation, and the internal layer shielding is temp measuring system position ground connection.For the input interface of sensor, also adopted antiseepage, measure such as anti-tampering, anti-lightning strike, guarantee the reliability of interface.The system works environment also exists high-intensity magnetic field to disturb except the highfield interference is arranged, so the method that signal that system adopts the double layer screen line to introduce especially to collect and shielding box internal layer are isolated prevents that the extra-high voltage high-intensity magnetic field from disturbing.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (10)
1, a kind of leads of ultra-high voltage power transmission lines thermometric monitoring system is characterized in that, comprises wire temperature sensor, central data processing unit and backstage analytic system;
Described wire temperature sensor is installed on lead node place or the gold utensil, is used to measure the temperature of lead, and by wireless communication networks described temperature is sent to described central data processing unit;
Described central data processing unit is used for described temperature is carried out analog to digital conversion, and the packing back is sent to described backstage analytic system by wireless communication networks;
Described backstage analytic system, the transmission capacity that lead allows when being used to utilize described temperature and transmission line of electricity calculation of design parameters different temperatures when the transmission capacity of lead reaches upper limit danger critical value, sends warning message.
2, leads of ultra-high voltage power transmission lines temp measuring system according to claim 1 is characterized in that, described wire temperature sensor is installed on lead node place or the gold utensil and is specially:
Described wire temperature sensor is fixed on lead node place or the gold utensil by base.
3, leads of ultra-high voltage power transmission lines temp measuring system according to claim 1 is characterized in that, described wire temperature sensor is powered by the lead electricity getting device, and described lead electricity getting device is installed on the lead.
4, leads of ultra-high voltage power transmission lines temp measuring system according to claim 1 is characterized in that, also comprises environment temperature sensor and sunshine recorder;
Described environment temperature sensor and described sunshine recorder are installed on the electric power line pole tower, are respectively applied for measures ambient temperature and intensity of sunshine; And the described environment temperature that will measure and intensity of sunshine are sent to described central data processing unit by the double layer screen line;
Described central data processing unit carries out analog to digital conversion with described environment temperature and intensity of sunshine, and the packing back is sent to the backstage analytic system by wireless network;
Described environment temperature and intensity of sunshine after the analytic system utilization conversion of described backstage compensate conductor temperature.
5, leads of ultra-high voltage power transmission lines temp measuring system according to claim 4 is characterized in that, described environment temperature sensor and intensity of sunshine sensor are by storage battery power supply, and described accumulator charges by solar panel.
6, leads of ultra-high voltage power transmission lines temp measuring system according to claim 1 is characterized in that, the skin shielding of described double layer screen line is the iron head ground connection of the insulator of electric power pylon;
The internal layer shielding of described double layer screen line is sensing station ground connection.
7, leads of ultra-high voltage power transmission lines temp measuring system according to claim 4 is characterized in that, the measurement range of described wire temperature sensor is :-55 ℃～+ 125 ℃; Precision is: ± 0.5 ℃; The measurement range of described environment temperature sensor is :-50 ℃～+ 75 ℃, sensitivity is: 0.5 ℃.
8, UHV transmission line temp measuring system according to claim 5 is characterized in that, the transmission capacity that lead allowed when described backstage analytic system was utilized described temperature and transmission line of electricity calculation of design parameters different temperatures is specially: R=W+Ld+g*V;
Wherein, R represents the transmission capacity that lead allows; W represents the tracerse survey temperature; Ld represents the environment temperature parameter; G represents the circuit division number; V representative voltage grade.
9, leads of ultra-high voltage power transmission lines temp measuring system according to claim 4 is characterized in that, the outside of described wire temperature sensor, environment temperature sensor and intensity of sunshine sensor is equipped with shielding box, is used to avoid the interference of extra-high voltage strong-electromagnetic field.
10, leads of ultra-high voltage power transmission lines temp measuring system according to claim 1 is characterized in that, described wireless communication networks is global system for mobile communications, CDMA or GPRS.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009101512364A CN101609125A (en) | 2009-06-29 | 2009-06-29 | A kind of system for monitoring leads of ultra-high voltage power transmission lines |
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| CNA2009101512364A CN101609125A (en) | 2009-06-29 | 2009-06-29 | A kind of system for monitoring leads of ultra-high voltage power transmission lines |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636274A (en) * | 2012-04-28 | 2012-08-15 | 四川省电力公司自贡电业局 | Intelligent temperature monitoring system of crosslinked polyethylene XLPE power cable |
| CN103795791A (en) * | 2014-01-22 | 2014-05-14 | 北京交通大学 | Railway disaster prevention safety monitoring system based on wireless sensor network |
| CN103808430A (en) * | 2012-11-12 | 2014-05-21 | 常州帕斯菲克自动化技术股份有限公司 | High-voltage device cable head temperature online monitoring device |
| CN104596656A (en) * | 2014-10-17 | 2015-05-06 | 芜湖扬宇机电技术开发有限公司 | Temperature early warning method of cable joint |
| CN106644149A (en) * | 2017-02-16 | 2017-05-10 | 国网河南省电力公司商丘供电公司 | Online monitoring device for temperature rise of cable intermediate joint of electric cable well |
| CN107817377A (en) * | 2017-11-17 | 2018-03-20 | 国网江苏省电力有限公司检修分公司 | It is a kind of to be set effective the hidden danger traveling wave detector device for suppressing interference outside based on sensor |
| CN109165820A (en) * | 2018-08-06 | 2019-01-08 | 南京理工大学 | A kind of methods of risk assessment of aerial condutor and its splicing fitting excess temperature |
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2009
- 2009-06-29 CN CNA2009101512364A patent/CN101609125A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636274A (en) * | 2012-04-28 | 2012-08-15 | 四川省电力公司自贡电业局 | Intelligent temperature monitoring system of crosslinked polyethylene XLPE power cable |
| CN103808430A (en) * | 2012-11-12 | 2014-05-21 | 常州帕斯菲克自动化技术股份有限公司 | High-voltage device cable head temperature online monitoring device |
| CN103795791A (en) * | 2014-01-22 | 2014-05-14 | 北京交通大学 | Railway disaster prevention safety monitoring system based on wireless sensor network |
| CN104596656A (en) * | 2014-10-17 | 2015-05-06 | 芜湖扬宇机电技术开发有限公司 | Temperature early warning method of cable joint |
| CN106644149A (en) * | 2017-02-16 | 2017-05-10 | 国网河南省电力公司商丘供电公司 | Online monitoring device for temperature rise of cable intermediate joint of electric cable well |
| CN107817377A (en) * | 2017-11-17 | 2018-03-20 | 国网江苏省电力有限公司检修分公司 | It is a kind of to be set effective the hidden danger traveling wave detector device for suppressing interference outside based on sensor |
| CN109165820A (en) * | 2018-08-06 | 2019-01-08 | 南京理工大学 | A kind of methods of risk assessment of aerial condutor and its splicing fitting excess temperature |
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Application publication date: 20091223 |