CN112179800A - Power transmission and transformation equipment dirt micro-quality measuring device and method - Google Patents
Power transmission and transformation equipment dirt micro-quality measuring device and method Download PDFInfo
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- CN112179800A CN112179800A CN202011027874.8A CN202011027874A CN112179800A CN 112179800 A CN112179800 A CN 112179800A CN 202011027874 A CN202011027874 A CN 202011027874A CN 112179800 A CN112179800 A CN 112179800A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 81
- 230000009466 transformation Effects 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 238000009825 accumulation Methods 0.000 claims description 23
- 239000003344 environmental pollutant Substances 0.000 claims description 11
- 231100000719 pollutant Toxicity 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 9
- 230000000007 visual effect Effects 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009422 external insulation Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/022—Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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Abstract
The invention belongs to the technical field of intelligent measurement of power transmission and transformation projects, and particularly relates to a device and a method for measuring the micro-mass of dirt of power transmission and transformation equipment. The invention relates to a measuring device for the power transmission and transformation, which comprises a control panel, a micro-mass measuring unit, a harmonic or piezoelectric signal conversion module, a data transmission module, a power supply control unit, a device fixing framework and a signal display end.
Description
Technical Field
The invention belongs to the technical field of intelligent measurement of power transmission and transformation projects, and particularly relates to a device and a method for measuring the micro-mass of dirt of power transmission and transformation equipment.
Background
The surface of equipment in power transmission and transformation engineering is easier to cause the sedimentation of accumulated dirt compared with the natural environment due to the adsorption effect of electrodes, so the positive and negative polarities under ultra/ultra-high pressure have very important influence on the adsorption capacity, the size and the components of the accumulated dirt. Meanwhile, due to the influence of haze components, smoke dust, ground dust, automobile exhaust and other dirt-moving substances are difficult to diffuse, and dirty fog and thick fog are formed. The accumulated dirt is adsorbed to the power transmission and transformation equipment along with the fog flow, wet settlement is formed on the surface of the power transmission and transformation equipment, the insulating strength of the surface of the power transmission and transformation equipment is reduced, the insulating accumulated dirt speed is accelerated, the accumulated dirt flashover of the power transmission and transformation equipment is easy to occur, and the accumulated dirt flashover can cause electric power system accidents, so that huge economic loss is caused.
In order to ensure the safe operation of the line, systems such as routing inspection, cleaning and the like are established. However, problems such as untimely cleaning protection and excessive protection often occur in the actual implementation process. The method has the advantages of realizing convenient, safe and accurate measurement of the insulation dirt accumulation degree, accurately mastering the dirt accumulation state of the power transmission and transformation equipment, providing technical support for cleaning and dirt flash prevention and control of the power transmission and transformation equipment, and becoming the problem which needs to be solved urgently in safe operation of the power transmission and distribution line.
The 33 th academic committee of the international large power transmission and transformation conference recommends 5 methods for measuring the accumulated dirt, namely an Equivalent Salt Deposit Density (ESDD) method, an integral surface dirt layer conductivity (SPLC) method, a pulse counting method, a leakage current method and a pollution flashover voltage gradient method of power transmission and transformation equipment. However, these methods have certain limitations, such as the leakage current monitoring system is easily affected by electromagnetic interference and is complicated to install. The shape and the material of the optical fiber salt density monitoring system are different from those of the power transmission and transformation equipment, and the adhesion conditions of the optical fiber salt density monitoring system and the power transmission and transformation equipment in the same environment are different, so that the comparability of the surface pollution accumulation condition of the optical fiber and the surface pollution accumulation condition of the power transmission and transformation equipment is reduced. In addition, the scouring effects of scouring factors such as rainfall on optical waveguides and power transmission and transformation equipment of different materials and shapes are greatly different.
In summary, the operating state and the micro mass of the accumulated dirt of the power transmission and transformation equipment in the prior art cannot be completely real-time and accurately obtained, and the accumulated dirt characteristics of the power transmission and transformation equipment in the alternating current and direct current electric fields are insufficient, so that the deviation of the external insulation protection configuration of the power transmission and transformation is caused. Therefore, it is necessary to provide a novel micro-mass measurement technology to realize direct and effective measurement of the accumulated dirt of the power transmission and transformation equipment.
Disclosure of Invention
In order to overcome the defects of the prior art and solve the problem of the measurement of the micro mass of the accumulated dirt, the invention provides the device and the method suitable for the measurement of the micro mass of the dirt of the power transmission and transformation equipment by independently designing the device for measuring the micro mass of the accumulated dirt of the power transmission and transformation equipment, so that the direct representation of the attachment state and the dirt accumulation degree of the accumulated dirt of the power transmission and transformation equipment in the actual operation state is realized, and the data support is provided for the effective configuration of the external insulation protection of the power transmission and transformation.
The invention provides a device for measuring the pollution micro-quality of power transmission and transformation equipment, which comprises a control panel, a micro-quality measuring unit, a harmonic or piezoelectric signal conversion module, a data transmission module, a power supply control unit, a device fixing framework and a signal display end, wherein the harmonic or piezoelectric signal conversion module is connected with the data transmission module; the micro-mass measurement unit, the harmonic or piezoelectric signal conversion module and the data transmission module are all connected with the power supply control unit; the control panel is connected with the device fixing framework, and the signal display end is used for signal display and recording.
Furthermore, the control panel sends out a command for collecting the pollutant accumulation mass data, the micro mass measurement unit is started, and the pollutant accumulation micro mass on the surface of the power transmission and transformation equipment is measured, wherein the measurement is the influence amplitude of the pollutant accumulation mass on the generation of harmonic waves or piezoelectric signals of the measurement module.
Furthermore, the waveform vibration generated by the micro-mass measuring unit is converted into a visual digital signal through a harmonic or piezoelectric signal conversion module, and the visual digital signal is a direct digital reflection of different pollutant accumulation micro-masses.
Furthermore, the control panel sends out an instruction, the data transmission module is started, the visible digital signal is transmitted to the signal display end, and the signal is transmitted by adopting a GPRS/3G/4G network.
Further, after the data are transmitted to the signal display end, the change of the pollutant accumulation micro mass can be observed and recorded.
Further, the signal display terminal provides direct display of the digital signal.
Furthermore, each module can be powered by a power supply control unit, and the electric energy of the power supply control unit is derived from power transmission and transformation inductance induction electricity taking or solar power generation.
Furthermore, the device is placed in an actual operating environment with dirty micro-quality of the power transmission and transformation equipment through a device fixing framework, and the control panel, the micro-quality measuring unit, the harmonic or piezoelectric signal conversion module, the data transmission module and the power supply control unit are firmly installed on the framework.
The invention also provides a method for measuring the micro-quality of the filth of the power transmission and transformation equipment, which comprises the following steps:
s1: placing the dirt accumulation micro-mass measuring device under the actual operating condition of dirt micro-mass of the power transmission and transformation equipment to ensure that the operating conditions of the device and the power transmission and transformation equipment are the same;
s2: the control panel sends out a micro-mass measurement instruction of the accumulated dirt, and the micro-mass measurement device measures the micro-mass value of the accumulated dirt on the surface of the sensor;
s3: the harmonic or piezoelectric signal conversion module converts the amplitude of the harmonic or piezoelectric signal into a visible digital signal so as to visually represent the change of the micro-mass value;
s4: the data transmission module transmits the visible digital signal through a GPRS/3G/4G network;
s5: and transmitting the signal to a signal display end, observing and recording a signal change value, and recording the pollution accumulation state in real time.
Further, the air conditioner is provided with a fan,
in step S2, the measurement is the influence amplitude of the contamination accumulation mass on the harmonic or piezoelectric signal generated by the measurement module.
Further, the air conditioner is provided with a fan,
in step S3, the visible digital signal is a direct digital reflection of the different fouling micro-masses.
Further, the signal display end can observe and record the change of the pollutant accumulation micro mass.
Further, the signal display terminal provides direct display of the digital signal.
Furthermore, each module is powered by a power supply control unit, and the electric energy of the power supply control unit is derived from power transmission and transformation inductance induction electricity taking or solar power generation.
Furthermore, all the modules are placed in the actual operation environment with the pollution and the micro-quality of the power transmission and transformation equipment through the device fixing framework. .
Compared with the prior art, the measuring device and the method have the following advantages:
the invention adopts the micro-mass measuring device to measure the adsorption mass of the surface of the power transmission and transformation equipment, and can measure the accumulated dirt density of the surface of the power transmission and transformation equipment by micro-mass, thereby being different from the existing leakage current method and the optical fiber salt density method which respectively need to calculate the accumulated dirt density from the leakage current and the luminous flux.
According to the invention, through the micro-mass measurement sensor, the harmonic wave or piezoelectric signal changes after the deposited dirt is attached, and the harmonic wave or piezoelectric signal conversion module and the transmission module are utilized, the value of the deposited dirt state of the deposited dirt is visually displayed at the signal display end, so that the problems and the defects that the existing measurement technology cannot directly and accurately display the deposited dirt state and the like are solved.
The measuring method provided by the invention is more direct, the data accuracy is higher, and the comprehensive performance is greatly superior to that of the measuring device and method used in the current engineering. The device can be used for a long time under the natural condition of power transmission and transformation operation, has long service life, and can be widely applied to power transmission and transformation equipment in the power transmission and transformation range.
Drawings
Fig. 1 is a schematic diagram of a device and a method for measuring the micro-quality of the contamination of the power transmission and transformation equipment according to the embodiment of the invention.
1. A control panel; 2. a micro-mass measurement unit; 3. a harmonic or piezoelectric signal conversion module; 4. a data transmission module; 5. and a signal display terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
As shown in fig. 1, the apparatus for measuring the micro-quality of the contamination of the power transmission and transformation equipment of the present invention comprises:
the device comprises a control panel 1, a micro-mass measuring unit 2, a harmonic or piezoelectric signal conversion module 3, a data transmission module 4, a power supply control unit (not shown), a device fixing framework (not shown) and a signal display terminal 5.
As shown in fig. 1, the control panel 1 sends out a command for collecting fouling mass data, and the micro mass measurement unit 2 is started to measure the fouling micro mass of the surface area.
The measurement is the influence amplitude of the pollutant accumulation mass on harmonic waves or piezoelectric signals generated by the measurement module.
The waveform vibration generated by the micro-mass measuring unit 2 is converted into a visual digital signal through the harmonic wave or piezoelectric signal conversion module 3, and the visual digital signal is direct digital reflection of different pollutant accumulation micro-masses.
The control panel 1 sends out an instruction to start the data transmission module 4, transmits the acquired quality digital signals to the signal display end 5, and the transmission signals are transmitted by adopting a GPRS/3G/4G network.
After the data are transmitted to the signal display end, the change of the accumulated dirt micro-mass can be observed and recorded, and the signal display end 5 can provide direct display of digital signals.
The modules can be powered by a power supply control unit, and can directly work for more than 3 years on a power transmission and transformation site, and the electric energy of the power supply control unit is derived from power transmission and transformation induction electricity taking or solar power generation.
The device fixing framework is placed in a dirty micro-mass actual operation environment of the power transmission and transformation equipment, and the control panel, the micro-mass measurement unit, the harmonic or piezoelectric signal conversion module, the data transmission module and the power supply control unit can be firmly installed by the framework.
The device for measuring the pollution micro-mass of the power transmission and transformation equipment can reliably operate for a long time in natural environments (including coastal environments, plateaus, mountainous regions and the like), and can realize measurement in the pollution micro-mass operating environments of the power transmission and transformation equipment of various voltage grades.
The device provided by the invention is used for measuring the pollution micro-mass of the power transmission and transformation equipment, can overcome the defects that the operation state pollution accumulation characterization of the power transmission and transformation equipment and the pollution micro-mass measuring method in the prior art can not completely and accurately obtain the pollution accumulation characteristic of the power transmission and transformation equipment under alternating-current and direct-current electric fields in real time, and avoids the deviation of the external insulation protection configuration of the power transmission and transformation.
The measuring method provided by the invention is more direct, has higher data accuracy, has comprehensive performance greatly superior to that of the measuring device and the method used in the current engineering, can be used for a long time under the natural condition of power transmission and transformation operation, has long service life, and can be widely applied to power transmission and transformation equipment in the power transmission and transformation range.
While the best mode for carrying out the invention has been described in detail and illustrated in the accompanying drawings, it is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation, the scope of the invention should be determined by the appended claims and any changes or modifications which fall within the true spirit and scope of the invention should be construed as broadly described herein.
Claims (15)
1. The utility model provides a defeated substation equipment filthy micro mass measuring device which characterized in that: the device comprises a control panel (1), a micro-mass measuring unit (2), a harmonic or piezoelectric signal conversion module (3), a data transmission module (4), a power supply control unit, a device fixing framework and a signal display end (5); the micro-mass measurement unit, the harmonic or piezoelectric signal conversion module and the data transmission module are all connected with the power supply control unit; the control panel is connected with the device fixing framework, and the signal display end is used for signal display and recording.
2. The device according to claim 1, wherein the control panel sends a command for collecting the pollutant accumulation mass data, the micro mass measurement unit is started to measure the pollutant accumulation micro mass on the surface of the power transmission and transformation equipment, and the measurement is the influence amplitude of the pollutant accumulation mass on the measurement module to generate harmonic waves or piezoelectric signals.
3. The apparatus of claim 2, wherein the waveform vibrations generated by the micro-mass measuring unit are converted into a visual digital signal by a harmonic or piezoelectric signal conversion module, and the visual digital signal is a direct digital reflection of different fouling micro-masses.
4. The device of claim 3, wherein the control panel issues a command, the data transmission module is activated, and the visible digital signal is transmitted to the signal display terminal, and the signal is transmitted by using a GPRS/3G/4G network.
5. The apparatus of claim 4, wherein the change in the fouling micro mass can be observed and recorded after the data is transmitted to the signal display terminal.
6. The apparatus of claim 4, wherein the signal display terminal provides a direct display of the digital signal.
7. The apparatus of claim 5, wherein each module is powered by a power control unit powered by a variable inductance induction or solar power.
8. The device according to claim 6, wherein the device is placed in a dirty micro-mass actual operating environment of the power transmission and transformation equipment through a device fixing framework, and the framework is used for firmly installing the control panel, the micro-mass measuring unit, the harmonic or piezoelectric signal conversion module, the data transmission module and the power supply control unit.
9. A method for measuring the pollution micro-quality of electric transmission and transformation equipment is characterized by comprising the following steps:
s1: placing the dirt accumulation micro-mass measuring device under the actual operating condition of dirt micro-mass of the power transmission and transformation equipment to ensure that the operating conditions of the device and the power transmission and transformation equipment are the same;
s2: the control panel sends out a micro-mass measurement instruction of the accumulated dirt, and the micro-mass measurement device measures the micro-mass value of the accumulated dirt on the surface of the sensor;
s3: the harmonic or piezoelectric signal conversion module converts the amplitude of the harmonic or piezoelectric signal into a visible digital signal so as to visually represent the change of the micro-mass value;
s4: the data transmission module transmits the visible digital signal through a GPRS/3G/4G network;
s5: and transmitting the signal to a signal display end, observing and recording a signal change value, and recording the pollution accumulation state in real time.
10. The method of claim 9, wherein the measurement is the magnitude of the effect of the fouling mass on the harmonic or piezoelectric signal generated by the measurement module in step S2.
11. The method of claim 9 wherein in step S3, the visual digital signal is a direct digital reflection of the different fouling micro-masses.
12. The method of claim 9, wherein the signal display terminal can observe and record the change in the fouling micro mass.
13. The method of claim 9, wherein the signal display terminal provides a direct display of the digital signal.
14. The method of claim 9, wherein each module is powered by a power control unit powered from a variable inductance induction or solar power generation.
15. The method of claim 9, wherein each module is placed in a dirty micro-quality actual operating environment of the power transmission and transformation equipment by a device mounting framework.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011027874.8A CN112179800A (en) | 2020-09-26 | 2020-09-26 | Power transmission and transformation equipment dirt micro-quality measuring device and method |
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| CN202011027874.8A CN112179800A (en) | 2020-09-26 | 2020-09-26 | Power transmission and transformation equipment dirt micro-quality measuring device and method |
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2020
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Application publication date: 20210105 |