CN112180041A - Online direct measurement device and method for pollutants in power grid environment - Google Patents
Online direct measurement device and method for pollutants in power grid environment Download PDFInfo
- Publication number
- CN112180041A CN112180041A CN202011027881.8A CN202011027881A CN112180041A CN 112180041 A CN112180041 A CN 112180041A CN 202011027881 A CN202011027881 A CN 202011027881A CN 112180041 A CN112180041 A CN 112180041A
- Authority
- CN
- China
- Prior art keywords
- module
- power grid
- pollution
- measurement
- core control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 19
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 17
- 150000003839 salts Chemical class 0.000 claims abstract description 19
- 230000010365 information processing Effects 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 claims description 30
- 238000004458 analytical method Methods 0.000 claims description 29
- 238000004364 calculation method Methods 0.000 claims description 29
- 230000005284 excitation Effects 0.000 claims description 14
- 230000005684 electric field Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 3
- 238000011109 contamination Methods 0.000 claims 2
- 238000009825 accumulation Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract 2
- 238000000691 measurement method Methods 0.000 description 7
- 239000013307 optical fiber Substances 0.000 description 6
- 238000012512 characterization method Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000009422 external insulation Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007689 inspection 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
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- 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
- G01R31/1227—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 of components, parts or materials
- G01R31/1263—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 of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/02—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Ecology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Atmospheric Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention belongs to the technical field of power grid pollution accumulation measurement, and particularly relates to an online direct measurement device and method suitable for power grid environment pollutants. The direct pollution measuring sensor is directly placed in a power grid operating environment. The data acquisition module can directly measure the characteristic value of the pollution of the power grid environment, and the display module can directly display the salt density value and the ash density value of the pollution. The method of the invention is direct, accurate and high in precision, can directly measure the real-time state of the pollution, has higher applicability to the measurement of the environmental pollution of the power grid, has greatly better comprehensive performance than the pollution measurement technology and method used in the current engineering, has high accuracy, can be used for a long time in the power grid environment, has long service life, and can be widely applied to the direct measurement of the environmental pollution of the power grid.
Description
Technical Field
The invention belongs to the technical field of intelligent sensing and measurement of a power grid, and particularly relates to an online direct measurement method suitable for pollutants in a power grid environment.
Background
The whole of the substation and the transmission and distribution line of various voltages in the power system is called as a power grid. The system comprises three units of power transformation, power transmission and power distribution. The electric field effect in the power grid environment, especially the influence of the electric field under super/ultra high pressure on the adsorption capacity, the size and the components of the pollutants is very important. Under the action of an electric field, environmental pollutants are adsorbed on a power grid to form wet settlement on the surface of the power grid, the insulation strength of the power grid is reduced, the pollution accumulation speed is accelerated, the pollution flashover of the power grid of a power transmission line and a transformer substation is easy to occur, and the electric power system accidents can be caused, so that huge economic loss is caused.
In order to ensure the safe operation of the power grid, a system of dirt inspection, cleaning and the like is 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 degree of the power grid, accurately mastering the pollution accumulation state of the power grid, providing technical support for cleaning the power grid environment and preventing pollution flashover, and solving the problem that the full operation of the power grid is urgently needed.
Common pollution measuring methods in the prior art include an equivalent salt density (ESDD) method, an integral Surface Pollution Layer Conductivity (SPLC) method, a pulse counting method, a leakage current method, and a grid pollution flashover voltage gradient method. However, the above methods have certain limitations, such as the leakage current monitoring system is easily affected by electromagnetic interference and is complicated to install. The optical fiber salt density monitoring system has the advantages that the difference between the shape and the material of the optical fiber (or the quartz rod) and the power grid is large, and the attachment conditions of the optical fiber (or the quartz rod) and the power grid under the same environment are different, so that the comparability between the surface pollution condition of the optical fiber and the surface pollution condition of the power grid is reduced. In addition, the scouring effects of scouring factors such as rainfall on optical waveguides and power grids of different materials and shapes are greatly different, and a large error exists between the dirt accumulation degree monitored by the optical fiber salt deposit density monitoring system and the actual dirt accumulation degree of the power grid. The conductivity of the polluted layer cannot completely reflect the real change of the polluted layer under high pressure due to low test voltage, the measurement dispersibility is large, the influence of uneven distribution of the polluted layer is large, and in addition, the conductivity of the polluted layer cannot be directly obtained through measurement, so the measurement is troublesome, and the measurement is called as a semi-dynamic parameter for representing the operation state of a polluted power grid. Therefore, although effective measurement of the power grid pollution plays a very critical role in guaranteeing safe and stable operation of the power system, the use effect of the existing pollution measurement technology and method is not satisfactory at present.
In summary, in the prior art, the pollution characterization and pollution attachment measurement methods in the power grid environment operation state cannot completely and accurately obtain the defect of pollution accumulation characteristics of the power grid under alternating current and direct current electric fields in real time, so that the external insulation protection configuration of the power grid has deviation. Therefore, there is a need to provide a novel on-line direct measurement technique to realize direct and effective measurement of accumulated dirt.
Disclosure of Invention
In order to overcome the defects of the prior art and solve the problem of direct measurement of pollution, the invention provides a method suitable for direct measurement of the pollution accumulation state of a power grid by independently designing the pollution of the power grid environment, so that the direct characterization of the pollution attachment state and the pollution degree of the power grid in the actual operation state is realized, and data support is provided for the effective configuration of the external insulation protection of the power grid.
Specifically, the invention relates to an online direct measurement device for pollutants in a power grid environment, which comprises a direct pollution measurement sensor, an information acquisition module, an information analysis module, an information processing module, a core control module, a data calculation module, a data transmission module and a data display module, wherein the direct pollution measurement sensor is directly arranged in a power grid operating environment, the information acquisition module directly measures a characteristic value of pollutants in the power grid environment, the direct pollution measurement sensor exchanges data with the information acquisition module, the information acquisition module exchanges data with the information analysis module, the information analysis module transmits the processed information to the information processing module, the core control module exchanges data with the information acquisition module and the data calculation module, and the data calculation module transmits the calculated data to the data display module through the data transmission module, and the data display module is used for directly displaying the salt density value and the ash density value of the dirt.
Further, the core control module sends a dirt direct measurement instruction, the dirt direct measurement sensor is started to directly measure the dirt of the power grid, and the measurement is the influence amplitude of the dirt on the measurement module exciting sine wave signal.
Furthermore, after the excitation sine wave signal generated by the sensor is directly measured by the dirt, the excitation sine wave signal is influenced by the dirt in the power grid environment, the excitation sine wave signal changes, the sine wave variation is measured through the information acquisition module, and the measured sine wave variation is sent to the information analysis module.
Furthermore, the information analysis module analyzes the measurement change, and sends the useful sine wave signal variation to the information processing module after removing the background interference signal.
Furthermore, the information processing module converts the sinusoidal signal variation into digital phase and amplitude frequency signals through a digital conversion circuit, and sends the digital phase and amplitude frequency signals to the core control module, wherein the phase and amplitude frequency digital signals are directly reflected by the power grid pollution measurement.
Further, the core control module further analyzes the digital phase and amplitude-frequency signals, sends an instruction to start the data calculation module, and the data calculation module performs phase and gain conversion to obtain a salt density value and an ash density value of the power grid dirt and sends information to the data transmission module.
And further, the data transmission module is started to transmit the measured value signals of the core control module and the data calculation module to the data display module, and the signals are transmitted by adopting a GPRS/3G/4G/5G network.
Furthermore, after the data are transmitted to the data display module, the salt density value and the ash density value of the electric network pollution are recorded and displayed, and the display module can provide direct display of the digital signals.
Furthermore, each module is powered by a power supply unit, and the electric energy of the power supply unit is from power grid induction electricity taking or solar power generation.
Furthermore, the direct filth measuring sensor, the information acquisition module, the information analysis module, the information processing module, the core control module, the data calculation module and the data transmission module are integrated and placed in a power grid environment to carry out direct online measurement.
The system further comprises a meteorological measurement sensor, wherein the meteorological measurement sensor is placed in an electric field environment of actual operation of a power grid, has the same operation condition as the power grid, and is connected to the information acquisition module; the core control module sends a meteorological condition measurement instruction, and the meteorological measurement sensor is started; the information acquisition module transmits the acquired meteorological parameters to the information analysis module and the information processing module; the information processing module sends the digital signal to the core control module, and the core control module sends an instruction to start the data transmission module to transmit through a PRS/3G/4G network; and transmitting the signals to a data display module, and observing and recording meteorological conditions in real time.
The invention also provides an online direct measurement method for the pollutants in the power grid environment, which comprises the following steps:
s1: the core control module sends a dirt direct measurement instruction, the dirt direct measurement sensor is started, and the dirt of the power grid is directly measured;
s2: the method comprises the following steps that after an excitation sine wave signal generated by a sensor is directly measured by dirt, the excitation sine wave signal is influenced by the dirt of a power grid environment, the excitation sine wave signal changes, sine wave variation is measured through an information acquisition module, and the measured sine wave variation is sent to an information analysis module;
s3: the information analysis module analyzes the measurement change, and sends the useful sine wave signal variation to the information processing module after removing the background interference signal;
s4: the information processing module converts the sinusoidal signal variation into digital phase and amplitude-frequency signals through a digital conversion circuit and sends the digital phase and amplitude-frequency signals to the core control module;
s5: the core control module further analyzes the digital phase and amplitude-frequency signals, sends an instruction to start the data calculation module, and the data calculation module performs phase and gain conversion to obtain a salt density value and an ash density value of the electric network dirt and sends information to the data transmission module;
s6: the data transmission module is started to transmit the measured value signals of the core control module and the data calculation module to the data display module;
s7: and the data display module records and displays the salt density value and the ash density value of the electric network pollution.
Further, in step S1, the measurement is an influence amplitude of the filth on the measurement module exciting the sine wave signal.
Further, the display module may provide direct display of the digital signal.
Further, the method may further include:
placing a meteorological measurement sensor in an electric field environment of actual operation of a power grid, wherein the meteorological measurement sensor is the same as the power grid operation condition and is connected to an information acquisition module; the core control module sends a meteorological condition measurement instruction, and the meteorological measurement sensor is started; the information acquisition module transmits the acquired meteorological parameters to the information analysis module and the information processing module; the information processing module sends the digital signal to the core control module, and the core control module sends an instruction to start the data transmission module to transmit through a PRS/3G/4G network; and transmitting the signals to a data display module, and observing and recording meteorological conditions in real time.
In the invention, a direct pollution measuring sensor is placed in a power grid environment, and a power grid pollution measured value can be directly measured. Therefore, the method is different from the existing leakage current method and the existing optical fiber salt density method, the pollution density needs to be calculated from the leakage current and the luminous flux respectively, the direct measurement value of the pollution is measured through the core control module, the salt density value and the ash density value of the pollution are directly calculated by utilizing the information acquisition module, the information analysis module, the information processing module and the data calculation module, and the measurement value of the pollution is directly displayed through the data display module, so that the problem and the defect that the pollution value of a power grid cannot be directly and accurately displayed in the existing measurement technology are solved.
The measurement mode provided by the invention is more direct, and the data accuracy is higher. The comprehensive performance is greatly superior to the pollution measuring technology and method used in the current engineering, the accuracy is high, the device can be used in the power grid environment for a long time, the service life is long, and the device can be widely applied to the direct measurement of various environmental pollutants of the power grid.
Drawings
Fig. 1 is a schematic diagram of online measurement of pollutants in a power grid environment according to an embodiment of the invention.
1. A dirt direct measurement sensor; 2. an information acquisition module; 3. an information analysis module; 4. an information processing module; 5. a core control module; 6. a data calculation module; 7. a data transmission module; 8. and a data display module.
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 figure 1, the online direct measurement method for the pollutants in the power grid environment comprises a pollutant direct measurement sensor 1, an information acquisition module 2, an information analysis module 3, an information processing module 4, a core control module 5, a data calculation module 6, a data transmission module 7 and a data display module 8, wherein the pollutant direct measurement sensor 1 is directly placed in the power grid operating environment, the information acquisition module 2 directly measures the characteristic value of the pollutants in the power grid environment, the pollutant direct measurement sensor and the information acquisition module exchange data, the information acquisition module and the information analysis module exchange data, the information analysis module and the information processing module transmit the processed information to the core control module, the core control module and the data and calculation module exchange data, and the data calculation module transmits the calculated data to the data display module through the data transmission module, and the data display module is used for directly displaying the salt density value and the ash density value of the dirt.
The core control module 5 sends out a dirt direct measurement instruction, the dirt direct measurement sensor 1 is started to directly measure the dirt of the power grid, and the measurement is the influence amplitude of the dirt on the measurement module exciting sine wave signal.
After the excitation sine wave signal generated by the sensor 1 is directly measured by the dirt, the excitation sine wave signal is influenced by the dirt in the power grid environment, the excitation sine wave signal changes, the sine wave variation is measured through the information acquisition module 2, and the measured sine wave variation is sent to the information analysis module 3.
And the information analysis module 3 is used for analyzing the measurement change, removing the background interference signal and then sending the useful sine wave signal variation to the information processing module 4.
And the information processing module 4 converts the sinusoidal signal variation into digital phase and amplitude frequency signals through a digital conversion circuit, and sends the digital phase and amplitude frequency signals to the core control module 5, wherein the phase and amplitude frequency digital signals are directly reflected by the power grid pollution measurement.
The core control module 5 further analyzes the digital phase and amplitude frequency signals, sends an instruction to start the data calculation module 6, and the data calculation module 6 performs phase and gain conversion to obtain a salt density value and an ash density value of the power grid dirt and sends information to the data transmission module 7.
The data transmission module 7 is started to transmit the measured value signals of the core control module 5 and the data calculation module 6 to the data display module 8, and the transmission signals are transmitted by adopting a GPRS/3G/4G/5G network.
After the data are transmitted to the data display module 8, the salt density value and the ash density value of the electric network pollution can be recorded and displayed, and the display module can provide direct display of digital signals.
The modules can be powered by a power supply unit, the power supply unit directly works for more than 3 years on a power grid site, and the electric energy of the power supply unit comes from power grid induction electricity taking or solar power generation.
The direct filth measuring sensor, the information acquisition module, the information analysis module, the information processing module, the core control module, the data calculation module and the data transmission module are integrally placed in a power grid environment to carry out direct online measurement.
The method can also comprise a meteorological measurement sensor, wherein the meteorological measurement sensor is placed in the electric field environment of the actual operation of the power grid, and the meteorological measurement sensor is placed in the electric field environment of the actual operation of the power grid to ensure that the meteorological measurement sensor is the same as the electric field environment of the actual operation of the power grid. The core control module sends a meteorological condition measuring instruction, and a meteorological condition detection sensor is started; the information acquisition module transmits the acquired meteorological parameters to the information analysis module and the information processing module; the information processing module sends the digital signal to the core control module, the core control module sends an instruction, and the data transmission module is started to transmit through a GPRS/3G/4G network; and transmitting the signals to a data display module, and observing and recording meteorological conditions in real time.
The online direct measurement method for the pollutants in the power grid environment can be operated reliably in the power grid environment (including links of power transmission, power transformation, power distribution and the like) for a long time, and measurement is realized in the power grid operation environment.
The method provided by the invention is used for measuring the pollutants in the power grid environment, so that the problem that the pollution characteristics under an electric field cannot be completely and accurately obtained in real time by using the power grid pollution characterization and pollution adhesion measurement method in the prior art can be solved, and the deviation of the external insulation protection configuration of the power grid is avoided. Therefore, the comprehensive performance of the measuring method provided by the invention is greatly superior to that of the pollution measuring technology and method used in the current engineering. The method of the invention is direct, accurate and high in precision, can directly measure the real-time state of the pollution, and has higher applicability to the measurement of the pollution in the power grid environment.
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 an online direct measurement device of electric wire netting environment filth which characterized in that: the system comprises a dirt direct measurement sensor (1), an information acquisition module (2), an information analysis module (3), an information processing module (4), a core control module (5), a data calculation module (6), a data transmission module (7) and a data display module (8), wherein the dirt direct measurement sensor is directly placed in a power grid operating environment, the information acquisition module directly measures a characteristic value of dirt in the power grid environment, data exchange is carried out between the dirt direct measurement sensor and the information acquisition module, the information acquisition module and the information analysis module carry out data exchange, the information analysis module and the information processing module transmit processed information to the core control module, data exchange is carried out between the core control module and the information acquisition module and the data calculation module, and the data calculation module transmits the calculated data to the data display module through the data transmission module, and the data display module is used for directly displaying the salt density value and the ash density value of the dirt.
2. The device according to claim 1, wherein the core control module sends out a direct measurement instruction of the pollution, the direct measurement sensor of the pollution is started to directly measure the pollution of the power grid, and the measurement is the influence amplitude of the pollution on the measurement module exciting sine wave signal.
3. The device according to claim 2, wherein the excitation sine wave signal generated by the direct measurement sensor of the contamination is influenced by the contamination of the power grid environment, the excitation sine wave signal changes, the sine wave variation is measured by the information acquisition module, and the measurement sine wave variation is sent to the information analysis module.
4. The apparatus of claim 3, wherein the information analysis module analyzes the measurement variation, and sends the variation of the desired sinusoidal signal to the information processing module after removing the background interference signal.
5. The device according to claim 4, wherein the information processing module converts the sinusoidal signal variation into digital phase and amplitude frequency signals through a digital conversion circuit, and sends the digital phase and amplitude frequency signals to the core control module, and the phase and amplitude frequency digital signals are directly reflected by the power grid pollution measurement.
6. The device according to claim 5, wherein the core control module further analyzes the digital phase and amplitude frequency signals and sends an instruction to start the data calculation module, and the data calculation module performs phase and gain conversion to obtain a salt density value and an ash density value of the power grid pollution and sends information to the data transmission module.
7. The device of claim 6, wherein the data transmission module is started to transmit the measured value signals of the core control module and the data calculation module to the data display module, and the signals are transmitted by using a GPRS/3G/4G/5G network.
8. The device of claim 7, wherein the data is transmitted to a data display module, and then the grid pollution salt density value and the grid pollution ash density value are recorded and displayed, and the display module can provide direct display of the digital signals.
9. The device according to any one of claims 1 to 8, wherein each module is powered by a power supply unit, the power supply unit being powered by induction from the power grid or by solar power.
10. The device according to one of claims 1 to 7, wherein the direct pollution measurement sensor, the information acquisition module, the information analysis module, the information processing module, the core control module, the data calculation module and the data transmission module are integrated in a power grid environment to perform direct online measurement.
11. The device according to any one of claims 1 to 8, further comprising a meteorological measurement sensor, wherein the meteorological measurement sensor is placed in an electric field environment where the power grid actually operates, is identical to the operation condition of the power grid, and is connected to the information acquisition module; the core control module sends a meteorological condition measurement instruction, and the meteorological measurement sensor is started; the information acquisition module transmits the acquired meteorological parameters to the information analysis module and the information processing module; the information processing module sends the digital signal to the core control module, and the core control module sends an instruction to start the data transmission module to transmit through a PRS/3G/4G network; and transmitting the signals to a data display module, and observing and recording meteorological conditions in real time.
12. A method for directly measuring pollutants in a power grid environment on line is characterized by comprising the following steps:
s1: the core control module sends a dirt direct measurement instruction, the dirt direct measurement sensor is started, and the dirt of the power grid is directly measured;
s2: the method comprises the following steps that after an excitation sine wave signal generated by a sensor is directly measured by dirt, the excitation sine wave signal is influenced by the dirt of a power grid environment, the excitation sine wave signal changes, sine wave variation is measured through an information acquisition module, and the measured sine wave variation is sent to an information analysis module;
s3: the information analysis module analyzes the measurement change, and sends the useful sine wave signal variation to the information processing module after removing the background interference signal;
s4: the information processing module converts the sinusoidal signal variation into digital phase and amplitude-frequency signals through a digital conversion circuit and sends the digital phase and amplitude-frequency signals to the core control module;
s5: the core control module further analyzes the digital phase and amplitude-frequency signals, sends an instruction to start the data calculation module, and the data calculation module performs phase and gain conversion to obtain a salt density value and an ash density value of the electric network dirt and sends information to the data transmission module;
s6: the data transmission module is started to transmit the measured value signals of the core control module and the data calculation module to the data display module;
s7: and the data display module records and displays the salt density value and the ash density value of the electric network pollution.
13. The method of claim 12,
in step S1, the measurement is the influence amplitude of the filth on the measurement module exciting sine wave signal.
14. The method of claim 13,
the display module may provide direct display of the digital signal.
15. The method of claim 14, further comprising:
placing a meteorological measurement sensor in an electric field environment of actual operation of a power grid, wherein the meteorological measurement sensor is the same as the power grid operation condition and is connected to an information acquisition module; the core control module sends a meteorological condition measurement instruction, and the meteorological measurement sensor is started; the information acquisition module transmits the acquired meteorological parameters to the information analysis module and the information processing module; the information processing module sends the digital signal to the core control module, and the core control module sends an instruction to start the data transmission module to transmit through a PRS/3G/4G network; and transmitting the signals to a data display module, and observing and recording meteorological conditions in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011027881.8A CN112180041A (en) | 2020-09-26 | 2020-09-26 | Online direct measurement device and method for pollutants in power grid environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011027881.8A CN112180041A (en) | 2020-09-26 | 2020-09-26 | Online direct measurement device and method for pollutants in power grid environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112180041A true CN112180041A (en) | 2021-01-05 |
Family
ID=73944091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011027881.8A Pending CN112180041A (en) | 2020-09-26 | 2020-09-26 | Online direct measurement device and method for pollutants in power grid environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112180041A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929972A (en) * | 2010-07-08 | 2010-12-29 | 吕强 | Insulator contamination on-line monitoring system |
| CN101986165A (en) * | 2010-09-26 | 2011-03-16 | 珠海泰坦科技股份有限公司 | Method for monitoring and analyzing leakage current of contaminated insulator |
| CN203324169U (en) * | 2013-06-27 | 2013-12-04 | 武汉星创源科技有限公司 | Online monitoring device for optical fiber pollutions |
| CN103675434A (en) * | 2013-12-12 | 2014-03-26 | 国家电网公司 | System and method for early warning insulator pollution flashover |
| CN105182118A (en) * | 2015-08-26 | 2015-12-23 | 芜湖市凯鑫避雷器有限责任公司 | Insulator contamination degree monitoring system |
| CN106092900A (en) * | 2016-05-31 | 2016-11-09 | 中国南方电网有限责任公司电网技术研究中心 | The close monitoring device of transformer station's salt and monitoring method, the close mechanism for monitoring of salt |
-
2020
- 2020-09-26 CN CN202011027881.8A patent/CN112180041A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929972A (en) * | 2010-07-08 | 2010-12-29 | 吕强 | Insulator contamination on-line monitoring system |
| CN101986165A (en) * | 2010-09-26 | 2011-03-16 | 珠海泰坦科技股份有限公司 | Method for monitoring and analyzing leakage current of contaminated insulator |
| CN203324169U (en) * | 2013-06-27 | 2013-12-04 | 武汉星创源科技有限公司 | Online monitoring device for optical fiber pollutions |
| CN103675434A (en) * | 2013-12-12 | 2014-03-26 | 国家电网公司 | System and method for early warning insulator pollution flashover |
| CN105182118A (en) * | 2015-08-26 | 2015-12-23 | 芜湖市凯鑫避雷器有限责任公司 | Insulator contamination degree monitoring system |
| CN106092900A (en) * | 2016-05-31 | 2016-11-09 | 中国南方电网有限责任公司电网技术研究中心 | The close monitoring device of transformer station's salt and monitoring method, the close mechanism for monitoring of salt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101101265B (en) | Power transmission and transformation equipment outer insulation equivalent ash deposit density measuring method and device | |
| CN103837852B (en) | All-fiber electronic current transformer frequency characteristic test device and method of testing | |
| CN102607643B (en) | Overheat fault diagnosis and early warning method for electrical equipment of traction substation of electrified railway | |
| CN105911499B (en) | Ultrasonic wave shelf depreciation metering system and method under site environment | |
| CN101576593B (en) | Array type inferior insulator local electric field detector and inverse diagnosis method | |
| CN101387670A (en) | Dielectric loss on-line measurement apparatus for power capacitor | |
| CN106324321A (en) | Monitoring method and monitoring device for resistive current of zinc oxide lightning arrester | |
| CN108362966B (en) | High-precision noise online monitoring method and system for oil immersed transformer | |
| CN110187193B (en) | Dielectric loss monitoring system and method based on total-station voltage transformer stability judgment | |
| CN110488096A (en) | A kind of electromagnetic field intensity measurement UAV system and measurement method | |
| CN111650548A (en) | Intelligent electric energy meter metering data remote online monitoring system and method | |
| CN110726879A (en) | Power transmission line tower grounding resistance monitoring system based on accurate measurement technology | |
| CN201716368U (en) | Device for analyzing and identifying phase of cable | |
| CN106353370A (en) | Device and method for nondestructively detecting materials for windings of power distribution transformers | |
| CN116823226A (en) | Electric power district fault monitoring system based on big data | |
| CN106908688B (en) | Portable power transformer winding fault real-time diagnosis equipment | |
| CN112180041A (en) | Online direct measurement device and method for pollutants in power grid environment | |
| CN117289188A (en) | Unmanned aerial vehicle navigation electromagnetic field simulation anti-interference performance evaluation method | |
| CN112179953A (en) | Multi-mode online monitoring device and method for insulator dirt accumulation amount | |
| CN207007993U (en) | A kind of measuring device with electricity of partial discharge of transformer | |
| CN110703035A (en) | Fault location device for power transmission line | |
| CN115479549A (en) | Portable field test imager of cement pole | |
| CN112147030A (en) | Device and method for detecting dirt deposition amount of external insulation part | |
| CN115451800A (en) | Testing method of portable field testing imager for cement electric pole | |
| CN210513250U (en) | Motor multi-parameter measurement monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210105 |
|
| RJ01 | Rejection of invention patent application after publication |