CN106680632A - Iron tower lightning protection performance detection method based on electromagnetic radiation abnormity determination and system - Google Patents

Iron tower lightning protection performance detection method based on electromagnetic radiation abnormity determination and system Download PDF

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Publication number
CN106680632A
CN106680632A CN201611258970.7A CN201611258970A CN106680632A CN 106680632 A CN106680632 A CN 106680632A CN 201611258970 A CN201611258970 A CN 201611258970A CN 106680632 A CN106680632 A CN 106680632A
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China
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electromagnetic radiation
steel tower
lightning protection
protection properties
judge
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CN201611258970.7A
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Chinese (zh)
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CN106680632B (en
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严军荣
卢玉龙
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杭州后博科技有限公司
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/20Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
    • G01R27/205Measuring contact resistance of connections, e.g. of earth connections
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08Measuring electromagnetic field characteristics
    • G01R29/0807Measuring electromagnetic field characteristics characterised by the application
    • G01R29/0814Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
    • G01R29/0857Dosimetry, i.e. measuring the time integral of radiation intensity; Level warning devices for personal safety use

Abstract

The invention discloses an iron tower lightning protection performance detection method based on electromagnetic radiation abnormity determination and a system. The system comprises an iron tower electricity leakage detection position identifying module, an electromagnetic radiation data acquisition module, an electromagnetic radiation value abnormity judging module and a grounding resistance calculating and iron tower lightning protection performance failure judging module. The iron tower electricity leakage detection position identifying module is used for identifying iron tower electricity leakage detection positions. The electromagnetic radiation data acquisition module is used for acquiring electromagnetic radiation data of the electricity leakage detection positions. The electromagnetic radiation value abnormity judging module is used for directly judging whether the electromagnetic radiation of the iron tower is abnormal through the electromagnetic radiation values of the electricity leakage detection positions. The grounding resistance calculating and iron tower lightning protection performance failure judging module is used for judging whether the iron tower lightning protection performance fails by judging whether the grounding resistance is normal. According to the invention, a technical problem of difficulty in actively finding a lightning protection performance failure of a communication iron tower is solved.

Description

The steel tower lightning protection properties detection method judged based on electromagnetic radiation abnormality and system
Technical field
The invention belongs to communication iron tower maintenance technology field, is more particularly to prevented based on the steel tower that electromagnetic radiation abnormality judges Thunder method for testing performance and system.
Background technology
At present communication iron tower is manually detected and safeguarded by attendant.If can not in time find steel tower because of lightning protection properties Failure and exist large area electric leakage, immeasurable consequence can be caused.Although insulating resistance measuring technology is ripe, also There is not the technical scheme that the technology is actively discovered steel tower lightning protection properties failure in combination with electromagnetic radiation, base is proposed for this The steel tower lightning protection properties detection method judged in electromagnetic radiation abnormality and system.
The content of the invention
The technical problem to be solved is the problem that communication iron tower lightning protection properties failure is difficult to be actively discovered, and is proposed The steel tower lightning protection properties detection method judged based on electromagnetic radiation abnormality and system.
Steel tower system application scenarios based on Internet of Things according to the present invention, as shown in Figure 1.In communication iron tower fixed position Install sensor equipment, sensor acquisition steel tower relevant parameter is simultaneously sent to system by communication module, and system is to sensing data Preserved and processed, client is obtained information needed with system interaction.
Overall system architecture based on the steel tower system of Internet of Things is as shown in Figure 2.Hardware includes communication iron tower In itself, the sensing equipment on tower body, communication module and the system of sensing equipment carry out real-time Communication for Power;Systems soft ware part Including system database, data processing platform (DPP), data management distribution platform, wherein system database is received from sensing equipment Sensing data simultaneously preserves all system journals, and data processing platform (DPP) transfers the data in system database and processed and analyzed, Respective record in the data processed result and system database of data management distribution platform receiving data processing platform is managed Reason and issue;System application platform includes management equipment and client, and management equipment includes but is not limited to work station, computer etc. and sets Apply, client includes but is not limited to the forms such as APP, wechat, Html webpages;The application personnel of the system including but not limited to manage Personnel and attendant, its interface is respectively management equipment and client.
The realization of the present invention relies on above-mentioned application scenarios and system architecture, and in communication iron tower relevant position electromagnetic radiation is installed Induction apparatuss detect electromagnetic radiation data, electric current, voltage transformer detection earth resistance are installed in steel tower earth-return circuit, by number According to analysis communication iron tower is actively discovered with the presence or absence of lightning protection properties failure.
The steel tower lightning protection properties detecting system judged based on electromagnetic radiation abnormality proposed by the present invention, including identification steel tower leakage Electro-detection position module, collection electromagnetic radiation data module, abnormal module, calculating earth resistance be simultaneously to judge electromagnetic radiation value Judge that steel tower whether there is lightning protection properties malfunctioning module.
1st, steel tower detection of electrical leakage position module is recognized:The construction of regional characteristics and steel tower according to residing for steel tower, identification The detection of electrical leakage position of steel tower.
2nd, electromagnetic radiation data module is gathered:Sensor of electromagnetic radiation timing at steel tower detection of electrical leakage position is examined Survey the electromagnetic radiation data of the position and transmit to system data library storage.
3rd, electromagnetic radiation value whether abnormal module is judged:Extract N number of electromagnetic radiation data and be designated as x1~xN, wherein N is prior The positive integer of setting, takes maximum x=max { x1,x2,…,xN, if x≤M, wherein M be the prior electromagnetic radiation for arranging most Big feasible value, then system judge that now electromagnetic radiation is normal, return judges electromagnetic radiation value whether abnormal module;Otherwise system is sentenced Disconnected now electromagnetic radiation value exception, into calculating earth resistance and judge that steel tower whether there is lightning protection properties malfunctioning module.
4th, calculate earth resistance and judge that steel tower whether there is lightning protection properties malfunctioning module:System activates steel tower earth-return circuit In voltage transformer produce and detection voltage U and gather feedback current I, calculate earth resistance R=α * (U/I), wherein α is prior The earth resistance transformation ratio of setting;If R>X and R≤Y, wherein X and Y are respectively the prior earth resistance normal range for arranging Minimum threshold and maximum threshold, then system judge that now steel tower does not have a lightning protection properties failure, return judges electromagnetism spoke Value whether abnormal module is penetrated, otherwise judges that now steel tower has lightning protection properties failure.
The system block diagram of the steel tower lightning protection properties detecting system judged based on electromagnetic radiation abnormality, as shown in Figure 3.
The present invention proposes the steel tower lightning protection properties detection method judged based on electromagnetic radiation abnormality, and its practice processes is system Electromagnetic radiation data is acquired by sensor of electromagnetic radiation.The method is realized as follows:
Step 1, identification steel tower detection of electrical leakage position simultaneously arrange initial value.
The construction of regional characteristics and steel tower according to residing for steel tower, recognizes the detection of electrical leakage position of steel tower;Electromagnetism is set Radiation maximum permissible value M, positive integer N, earth resistance transformation ratio α, minimum threshold X of earth resistance normal range and maximum Threshold value Y.
Step 2, extract electromagnetic radiation data and judge that electromagnetic radiation value is whether abnormal.
N number of electromagnetic radiation data is extracted, x is designated as1~xN, take maximum x=max { x1,x2,…,xN, if x≤M, System judges that now electromagnetic radiation is normal, return to step 2;If x>M, then system judge now electromagnetic radiation value exception, into step Rapid 3.
Step 3, calculating earth resistance.
Voltage transformer in system activation steel tower earth-return circuit produces detection voltage U and gathers feedback current I, so as to count Calculate earth resistance R=α * (U/I).
Step 4, judge steel tower whether there is lightning protection properties failure.
If R>X and R≤Y, then judge that now steel tower does not have lightning protection properties failure, return to step 2;Otherwise judge now There is lightning protection properties failure in steel tower, detection terminates.
The method flow diagram of the steel tower lightning protection properties detection method judged based on electromagnetic radiation abnormality is as shown in Figure 4.
The method of the present invention and system have following two advantages:
(1) present invention is combined by electromagnet radiation detection and insulating resistance measuring and realizes that communication iron tower lightning protection properties are examined Survey, being capable of active detecting steel tower lightning protection properties.
(2) communication iron tower lightning protection properties automatic detection is realized, it is to avoid the harm that manual detection is brought.
Description of the drawings
Fig. 1 is the application scenarios schematic diagram of the present invention;
Fig. 2 is the application scenarios overall system architecture figure of the present invention;
Fig. 3 is the system block diagram of the present invention;
Fig. 4 is method of the present invention flow chart.
Specific embodiment
The preferred embodiment of the present invention is elaborated below.
Steel tower system application scenarios based on Internet of Things according to the present invention, as shown in Figure 1.In communication iron tower fixed position Install sensor equipment, sensor acquisition steel tower relevant parameter is simultaneously sent to system by communication module, and system is to sensing data Preserved and processed, client is obtained information needed with system interaction.
Overall system architecture based on the steel tower system of Internet of Things is as shown in Figure 2.Hardware includes communication iron tower In itself, the sensing equipment on tower body, communication module and the system of sensing equipment carry out real-time Communication for Power;Systems soft ware part Including system database, data processing platform (DPP), data management distribution platform, wherein system database is received from sensing equipment Sensing data simultaneously preserves all system journals, and data processing platform (DPP) transfers the data in system database and processed and analyzed, Respective record in the data processed result and system database of data management distribution platform receiving data processing platform is managed Reason and issue;System application platform includes management equipment and client, and management equipment includes but is not limited to work station, computer etc. and sets Apply, client includes but is not limited to the forms such as APP, wechat, Html webpages;The application personnel of the system including but not limited to manage Personnel and attendant, its interface is respectively management equipment and client.
The realization of the present invention relies on above-mentioned application scenarios and system architecture, and in communication iron tower relevant position electromagnetic radiation is installed Induction apparatuss detect electromagnetic radiation data, current-voltage transformer detection earth resistance are installed in steel tower earth-return circuit, by number Find that communication iron tower whether there is lightning protection properties failure according to analysis.
Internet of Things transformation is carried out in this example to certain steel tower to detect so as to realize steel tower lightning protection properties.The inventive method and system Embodiment is as follows:
The steel tower lightning protection properties detecting system judged based on electromagnetic radiation abnormality proposed by the present invention, including identification steel tower leakage Electro-detection position module, collection electromagnetic radiation data module, abnormal module, calculating earth resistance be simultaneously to judge electromagnetic radiation value Judge that steel tower whether there is lightning protection properties malfunctioning module.
1st, steel tower detection of electrical leakage position module is recognized:The construction of regional characteristics and steel tower according to residing for steel tower, identification The detection of electrical leakage position of steel tower.Region topography residing for steel tower is higher in the present embodiment, steel tower construction belongs to angle steel tower, so choosing The border circular areas of radius 5m are steel tower electric leakage monitoring position around column foot and column foot.
2nd, electromagnetic radiation data module is gathered:Sensor of electromagnetic radiation timing at steel tower detection of electrical leakage position is examined Survey the electromagnetic radiation data of the position and transmit to system data library storage.
3rd, electromagnetic radiation value whether abnormal module is judged:System extracts N number of electromagnetic radiation data and is designated as x1~xN, wherein N is The positive integer for arranging in advance, takes maximum x=max { x1,x2,…,xN, if x≤M, wherein M is the prior electromagnetism spoke for arranging Maximum permissible value is penetrated, then system judges that now electromagnetic radiation is normal, return judges electromagnetic radiation value whether abnormal module;Otherwise it is System judges now electromagnetic radiation value exception, into calculating earth resistance and judge that steel tower whether there is lightning protection properties malfunctioning module. In the present embodiment, N=5 is set, electromagnetic radiation maximum M=0.5 μ T (tesla), system extracts 5 electromagnetic radiation datas x1 ~x5Respectively 0.1,0.15,0.3,0.7,0.4 (unit is μ T), maximum x=max { x therein1,x2,…,xN}= 0.7>M=0.5, system judges now electromagnetic radiation value exception, into calculating earth resistance and judge that steel tower whether there is lightning protection Performance fault module.
4th, calculate earth resistance and judge that steel tower whether there is lightning protection properties malfunctioning module:System activates steel tower earth-return circuit In voltage transformer produce and detection voltage U and gather feedback current I, calculate earth resistance R=α * (U/I), wherein α is prior The earth resistance transformation ratio of setting;If R>X and R≤Y, wherein X and Y are respectively the prior earth resistance normal range for arranging Minimum threshold and maximum threshold, then system judge that now steel tower does not have a lightning protection properties failure, return judges electromagnetism spoke Value whether abnormal module is penetrated, otherwise judges that now steel tower has lightning protection properties failure.In the present embodiment, earth resistance conversion is set Factor alpha=0.8, Ω~10 Ω (ohm) of earth resistance normal range value 0.5, voltage transformer produces detection voltage 10V, feedback Electric current is 8A, then 0.5 Ω<R=1 Ω<10 Ω, therefore system judges that now steel tower does not have lightning protection properties failure, returns and judges electricity Electromagnetic radiation value whether abnormal module.
The present invention proposes the steel tower lightning protection properties detection method judged based on electromagnetic radiation abnormality, and its practice processes is system Electromagnetic radiation data is collected by sensor of electromagnetic radiation.The method is realized as follows:
Step 1, identification steel tower detection of electrical leakage position simultaneously arrange initial value.
The construction of regional characteristics and steel tower according to residing for steel tower, recognizes the detection of electrical leakage position of steel tower;Electromagnetism is set Radiation maximum permissible value M, positive integer N, earth resistance transformation ratio α, minimum threshold X of earth resistance normal range and maximum Threshold value Y.Region topography residing for steel tower is higher in the present embodiment, steel tower construction belongs to angle steel tower, so choosing column foot and tower It is steel tower electric leakage monitoring position that primitive period encloses the border circular areas of radius 5m;Electromagnetic radiation maximum M=0.5 μ T, just whole are set Number N=5, earth resistance transformation ratio α=0.8, earth resistance boundary normal range are 0.5 Ω~10 Ω.
Step 2, extract electromagnetic radiation data and judge that electromagnetic radiation value is whether abnormal.
N number of electromagnetic radiation data is extracted, x is designated as1~xN, take maximum x=max { x1,x2,…,xN, if x≤M, System judges that now electromagnetic radiation is normal, return to step 2;If x>M, then system judge now electromagnetic radiation value exception, into step Rapid 3.In the present embodiment, system extracts the maximum x=max { x in 5 electromagnetic radiation datas1,x2,…,xN}=0.7>M= 0.5, system judges now electromagnetic radiation value exception.
Step 3, calculating earth resistance.
Voltage transformer in system activation steel tower earth-return circuit produces detection voltage U and gathers feedback current I, so as to count Calculate earth resistance R=α * (U/I).In the present embodiment, detection voltage 10V is produced, feedback current is 8A, α=0.8, then R=1 Ω.
Step 4, judge steel tower whether there is lightning protection properties failure
If R>X and R≤Y, then judge that now steel tower does not have lightning protection properties failure, returns module 2;Otherwise judge now There is lightning protection properties failure in steel tower.In the present embodiment, 0.5 Ω<R=1 Ω<10 Ω, thus system judge now steel tower do not exist it is anti- Thunder performance fault, return to step 2.
Certainly, those of ordinary skill in the art is it should be appreciated that above example is intended merely to illustrate this Bright, and limitation of the invention is not intended as, as long as within the scope of the invention, the change, modification to above example is all Protection scope of the present invention will be fallen into.

Claims (10)

1. the steel tower lightning protection properties detecting system for being judged based on electromagnetic radiation abnormality, it is characterised in that including identification steel tower electric leakage inspection Survey position module, collection electromagnetic radiation data module, judge that whether electromagnetic radiation value abnormal module and calculating earth resistance and is sentenced Disconnected steel tower whether there is lightning protection properties malfunctioning module.
2. it is according to claim 1 based on electromagnetic radiation abnormality judge steel tower lightning protection properties detecting system, its identification ferrum Tower detection of electrical leakage position module is characterised by:According to residing for steel tower the characteristics of region and steel tower construction, recognize steel tower Detection of electrical leakage position.
3. it is according to claim 1 based on electromagnetic radiation abnormality judge steel tower lightning protection properties detecting system, its collection electricity Magnetic radiation data module is characterised by:Sensor of electromagnetic radiation timing at steel tower detection of electrical leakage position detects the position The electromagnetic radiation data put simultaneously is transmitted to system data library storage.
4. it is according to claim 1 based on electromagnetic radiation abnormality judge steel tower lightning protection properties detecting system, its judge electricity Whether abnormal module is characterised by electromagnetic radiation value:Extract N number of electromagnetic radiation data and be designated as x1~xN, wherein N is to arrange in advance Positive integer, takes maximum x=max { x1,x2,…,xN, if x≤M, wherein M is that the prior electromagnetic radiation for arranging is maximum allowable Value, then system judge that now electromagnetic radiation is normal, return judges electromagnetic radiation value whether abnormal module;Otherwise system judges now Electromagnetic radiation value exception, into calculate earth resistance and judge steel tower whether there is lightning protection properties malfunctioning module.
5. the steel tower lightning protection properties detecting system judged based on electromagnetic radiation abnormality according to claim 1, its calculating connects Ground resistance simultaneously judges that steel tower is characterised by with the presence or absence of lightning protection properties malfunctioning module:Electricity in system activation steel tower earth-return circuit Pressure transformer produces detection voltage U and gathers feedback current I, calculates earth resistance R=α * (U/I), and wherein α is to arrange in advance Earth resistance transformation ratio;If R>X and R≤Y, wherein X and Y are respectively the minimums of the prior earth resistance normal range for arranging Threshold value and maximum threshold, then now there is no lightning protection properties failure in steel tower for system judgement, and return judges that electromagnetic radiation value is No abnormal module, otherwise judges that now steel tower has lightning protection properties failure.
6. it is a kind of based on electromagnetic radiation abnormality judge steel tower lightning protection properties detection method, it is characterised in that comprise the following steps:
Step 1, identification steel tower detection of electrical leakage position simultaneously arrange initial value;
Step 2, extract electromagnetic radiation data and judge that electromagnetic radiation value is whether abnormal;
Step 3, calculating earth resistance;
Step 4, judge steel tower whether there is lightning protection properties failure.
7. it is according to claim 6 based on electromagnetic radiation abnormality judge steel tower lightning protection properties detection method, its step 1 It is characterised by:According to residing for steel tower the characteristics of region and steel tower construction, recognize steel tower detection of electrical leakage position;Electromagnetism is set Radiation maximum permissible value M, positive integer N, earth resistance transformation ratio α, minimum threshold X of earth resistance normal range and maximum Threshold value Y.
8. it is according to claim 6 based on electromagnetic radiation abnormality judge steel tower lightning protection properties detection method, its step 2 It is characterised by:N number of electromagnetic radiation data is extracted, x is designated as1~xN, take maximum x=max { x1,x2,…,xN, if x≤M, System judges that now electromagnetic radiation is normal, returns the step 2;Otherwise system judges now electromagnetic radiation value exception, into institute State step 3.
9. it is according to claim 6 based on electromagnetic radiation abnormality judge steel tower lightning protection properties detection method, its step 3 It is characterised by:Voltage transformer in system activation steel tower earth-return circuit produces detection voltage U and gathers feedback current I, calculates Earth resistance R=α * (U/I).
10. it is according to claim 6 based on electromagnetic radiation abnormality judge steel tower lightning protection properties detection method, its step 4 It is characterised by:If R>X and R≤Y, then now there is no lightning protection properties failure in steel tower for system judgement, return the step 2, Otherwise judge that now steel tower has lightning protection properties failure.
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WO2007070942A1 (en) * 2005-12-23 2007-06-28 Deakin University Method and apparatus for detecting an event
CN201060243Y (en) * 2007-06-11 2008-05-14 袁立 Induction type pole tower electrical leakage sensor
CN101122623A (en) * 2007-09-14 2008-02-13 清华大学 High voltage electricity transmission system thunder-proof property parameter test method
CN203259588U (en) * 2013-05-16 2013-10-30 广州供电局有限公司 Lightning overvoltage measuring system
CN103293451A (en) * 2013-05-24 2013-09-11 华南理工大学 Method of estimating lightning protection of high-voltage transmission line pole/tower earthing device
CN203759109U (en) * 2014-01-17 2014-08-06 上海科东实业有限公司 Online lightning stroke and lightning current detection device
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