CN109521266A - ± 800KV extra-high voltage direct-current non-contact intelligent electroscope - Google Patents
± 800KV extra-high voltage direct-current non-contact intelligent electroscope Download PDFInfo
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- CN109521266A CN109521266A CN201910075398.8A CN201910075398A CN109521266A CN 109521266 A CN109521266 A CN 109521266A CN 201910075398 A CN201910075398 A CN 201910075398A CN 109521266 A CN109521266 A CN 109521266A
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- high voltage
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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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- Measurement Of Current Or Voltage (AREA)
Abstract
The present invention relates to a kind of high-tension electricity equipment, specifically refer to a kind of ± 800KV extra-high voltage direct-current non-contact intelligent electroscope having to extra-high voltage ± 800KV DC line non-contact intelligent electroscope function, including electric field detection module, wave detector, low-pass filter and test macro, the test macro includes DSP direct current signal processing module, MCU handles chip, interface module and sound and light alarm module, the electric field detection module passes through wave detector, low-pass filter is electrically connected with DSP direct current signal processing module, the DSP direct current signal processing module is electrically connected with MCU processing chip, the MCU processing chip is also electrically connected with interface module and sound and light alarm module respectively.
Description
Technical field
The present invention relates to a kind of high-tension electricity equipment, in particular to one kind ± 800KV extra-high voltage direct-current non-contact intelligent to test
Electric appliance.
Background technique
With the rapid development of our national economy, the energy place of production and the unbalanced contradiction of electricity needs Area distribution is increasingly
Aggravation develops large capacity, remote extra-high voltage conveying engineering becomes the strategic measure of China's optimization of energy resources, extra-high voltage
The DC line of ± 800KV has come into operation, only exchange direct contact type electroscope domestic at present, voltage in 500KV hereinafter,
Extra-high voltage ± 800KV DC electroscope is blank on the market, and the sensor structure of DC electroscope is complicated, and measurement difficulty is also remote
Higher than alternating voltage, therefore the domestic electroscope for haveing not been used to direct-current ultra high voltage, our patent are exactly using to electric-field strength
The measurement of degree, using non-contact method electrical verification, electrical verification is accurate and reliable, safe and convenient to use.
The defect and deficiency of the prior art:
1. existing system be all 500KV or less alternating voltage carry out electrical verification, electrical verification be also using test device with
The mode electrical verification that route directly contacts, due to about 18-27 meters of line-to-ground height, current is tested for super-pressure and extra high voltage line
Whether the mode measurement circuit that electric installation can not directly adopt contact charges, therefore domestic without for super-pressure, extra-high voltage at present
Electroscope, also without being directed to the electroscope of DC line, the invention patent is special aiming at the direct current of ± 800KV DC line
High-pressure non-contact type electroscope, is currently a blank, and this product is exactly to fill up this blank.
2. existing patent of invention at present, 201510097694.X, applicant SanXia University, it be a kind of non-contact for them to apply for
Formula high voltage electroscope, is the detection for 50HZ power frequency component from the content of application, the voltage of detection be 10KV, 35KV these
AC signal electroscope, it is very simple to the description of induction module in document, induction antenna is only described, these all can only
It used in AC power frequency place, while being for the following voltage of lower voltage 220KV, for all can not be just under super-pressure and extra-high voltage
It is often used, the reason is that ultrasonic wave is used for detection object, it is to need certain surface area, super-pressure and extra high voltage line are over the ground
Height is in 18-27M, and in this case, ultrasonic wave can't detect top route at all, height parameter can not be provided, according to it
Principle, it is subsequent detection can not all be normally carried out, therefore this device need to electrical body it is close enough at a distance from, electrical body is wanted
Enough great talents can test, so it can only can not be directed to high voltage transmission line for the electrical equipment of electrification, its described induction
Antenna can not be used to detect DC electric field, can not be directed to ± 800KV extra high voltage line.
Summary of the invention
For above-mentioned deficiency in the prior art, the present invention provides a kind of with non-to extra-high voltage ± 800KV DC line
Contact ± 800KV extra-high voltage direct-current non-contact intelligent the electroscope of intelligent electroscope function.
To realize the above technical purpose, the technical scheme is that one kind ± 800KV extra-high voltage direct-current non-contact intelligent
Electroscope, including electric field detection module, wave detector, low-pass filter and test macro, the test macro include DSP direct current letter
Number processing module, MCU processing chip, interface module and sound and light alarm module, the electric field detection module pass through wave detector, low pass
Filter is electrically connected with DSP direct current signal processing module, and the DSP direct current signal processing module is electrically connected with MCU processing chip,
The MCU processing chip is also electrically connected with interface module and sound and light alarm module respectively.
Preferably, including input filter, digital processing unit and output filtering in the DSP direct current signal processing module
Device, the input filter, digital processing unit and output filter are sequentially connected in series.
Preferably, further including GPS signal module, 2.4G signaling module and video-audio signal module, the GPS signal
Module, 2.4G signaling module and video-audio signal module are connect with MCU processing chip signal.
Preferably, the interface module includes CAN module, 485 modules, blue tooth interface and power interface.
Above description can be seen that the present invention and have following advantages: the non-contact intelligence of ± 800KV extra-high voltage direct-current of the invention
Energy electroscope can realize electroscope function to the DC line of extra-high voltage ± 800KV；And it was not needed using cordless
Long insulating bar can be carried out testing, while also not influenced by line levels, and the effect of electroscope is detection top route
Whether charge, prevents that accident occurs when operation.
Detailed description of the invention
The structural schematic diagram of ± 800KV extra-high voltage direct-current non-contact intelligent electroscope Fig. 1 of the invention；
Schematic diagram when ± 800KV extra-high voltage direct-current non-contact intelligent electroscope Fig. 2 of the invention is tested；
DSP direct current signal when ± 800KV extra-high voltage direct-current non-contact intelligent electroscope Fig. 3 of the invention is tested handles mould
Block tupe figure；
DSP direct current signal when ± 800KV extra-high voltage direct-current non-contact intelligent electroscope Fig. 4 of the invention is tested handles mould
The MATLAB computer aided algorithm figure of block；
Specific embodiment
Below with reference to the given attached drawing of the present invention and specific example, the present invention is further explained, it should be understood that these embodiments
It is only illustrative of the invention and is not intended to limit the scope of the invention, based on the embodiment of the present invention, ordinary skill people
Member's every other embodiment obtained under the premise of no creative work.Belong to protection scope of the present invention.
One kind ± 800KV extra-high voltage direct-current non-contact intelligent electroscope, including electric field detection module, wave detector, low pass filtered
Wave device and test macro, the test macro include DSP direct current signal processing module, MCU processing chip, interface module and acousto-optic
Alarm module, the electric field detection module are electrically connected by wave detector, low-pass filter with DSP direct current signal processing module, institute
DSP direct current signal processing module and MCU processing chip is stated be electrically connected, the MCU handle chip also respectively with interface module harmony
The electrical connection of light alarm module.
It is described defeated including input filter, digital processing unit and output filter in the DSP direct current signal processing module
Enter filter, digital processing unit and output filter to be sequentially connected in series.
It further include GPS signal module, 2.4G signaling module and video-audio signal module, the GPS signal module, 2.4G
Signaling module and video-audio signal module are connect with MCU processing chip signal.
The interface module includes CAN module, 485 modules, blue tooth interface and power interface.
In the specific implementation, Spiralism type measurement method is usually used in DC electric field detection, but has been used in the present invention
Significant limitation, the principle of the present invention are the sine wave source generated by signal source device for measurement, pass through load electricity
R connection electric field detection module is hindered, capacitor C, the sine voltage value at both ends are equivalent between electric field detection module and testee
For the partial pressure of resistance R, capacitive reactance is directly proportional to 1/C, is inversely proportional with C, and in the case where sine wave freuqency is certain, 1/2 π f is normal
Number is that capacitor increases, signal amplitude can decline, and when electrode is far from testee, capacitor subtracts when electrode is close to testee
Small, signal account degree can rise, and signal removes its high frequency carrier part by wave detector and low-pass filter and takes out low frequency amplitude letter
Number, by AD device to amplitude sample, range value is taken out, then by being converted to the corresponding numerical value of electric field strength, relevant range
It can be adjusted according to experimental conditions with precision.
Wherein DSP direct current signal processing module is mainly used for being used in front end sensors, as shown in figure 3, utilizing internal DSP
It handles front end data and carries out digital filtering, front end sensors can carry out FIR low-pass filtering algorithm as needed, be counted using MATLAB
Calculation machine Computer Aided Design FI R low-pass filtering algorithm parameter completes the work of low-pass filtering algorithm calculation process by DSP, and processing mode is such as
Shown in Fig. 4.
Wherein the Mathematic Model Library of DSP direct current signal processing module insertion includes the mathematical model under different places, is adopted
The nonlinear fitting work of discrete data is completed with MATLAB CAD, real data is in dsp according to mathematics
Model calculation is completed, and mathematical model can correspond to various real complex scenes, and (following formula is in this product Mathematic Model Library
One uses for reference)
Y=-0.24988x3+16.79445x2-384.8387x+3.0469e+03
Such as in x=13.2m, electric field strength are as follows: 318.578KV/M, model as many of model library can be with
In reality in use, selecting in function according to the place at place, universal model can also be only used, answering when can cope with measurement
Miscellaneous place.
Sound and light alarm module alarm when using LED light, voice with alarm by the way of, voice can also be driven by bluetooth
The dynamic alarm terminal for being total to it, can be mobile phone, other alarm sources, can notify the mode of more people or group simultaneously.
MCU handles chip and handles chip using 32 ARM, has stronger processing capacity and low-power consumption, and facilitate connection
Other smart machines and intelligent terminal.
Interface module includes the part with other devices and apparatus interconnection intercommunication, can be wirelessly transmitted to it by 2.4G
Its terminal, the GPS signal that can be positioned, power module etc..
The present invention and its embodiments have been described above, description is not limiting, it is shown in the drawings also only
It is one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill people of this field
Member is enlightened by it, without departing from the spirit of the invention, is not inventively designed similar to the technical solution
Frame mode and embodiment, be within the scope of protection of the invention.
Claims (4)
1. one kind ± 800KV extra-high voltage direct-current non-contact intelligent electroscope, it is characterised in that: including electric field detection module, detection
Device, low-pass filter and test macro, the test macro include DSP direct current signal processing module, MCU processing chip, interface
Module and sound and light alarm module, the electric field detection module pass through wave detector, low-pass filter and DSP direct current signal processing module
Electrical connection, the DSP direct current signal processing module and MCU processing chip are electrically connected, the MCU handle chip also respectively with interface
Module and sound and light alarm module electrical connection.
2. ± 800KV extra-high voltage direct-current non-contact intelligent electroscope according to claim 1, it is characterised in that: the DSP
In direct current signal processing module include input filter, digital processing unit and output filter, the input filter, number at
Reason device and output filter are sequentially connected in series.
3. ± 800KV extra-high voltage direct-current non-contact intelligent electroscope according to claim 1, it is characterised in that: further include
GPS signal module, 2.4G signaling module and video-audio signal module, the GPS signal module, 2.4G signaling module and video
Audio signal module is connect with MCU processing chip signal.
4. ± 800KV extra-high voltage direct-current non-contact intelligent electroscope according to claim 1, it is characterised in that: described to connect
Mouth mold block includes CAN module, 485 modules, blue tooth interface and power interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075398.8A CN109521266A (en) | 2019-01-25 | 2019-01-25 | ± 800KV extra-high voltage direct-current non-contact intelligent electroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910075398.8A CN109521266A (en) | 2019-01-25 | 2019-01-25 | ± 800KV extra-high voltage direct-current non-contact intelligent electroscope |
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| CN109521266A true CN109521266A (en) | 2019-03-26 |
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| CN201910075398.8A Pending CN109521266A (en) | 2019-01-25 | 2019-01-25 | ± 800KV extra-high voltage direct-current non-contact intelligent electroscope |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819227A (en) * | 2010-03-10 | 2010-09-01 | 国网电力科学研究院 | 800kV extra-high voltage direct-current non-contact multichannel distance measurement type electroscope |
| CN201607477U (en) * | 2010-03-10 | 2010-10-13 | 国网电力科学研究院 | 800kV ultra-high voltage direct-current non-contact multichannel range-finding type electroscope |
| CN105676008A (en) * | 2016-01-15 | 2016-06-15 | 中国电力科学研究院 | Digital electric field sensor |
| CN105699742A (en) * | 2016-01-25 | 2016-06-22 | 中国电力科学研究院 | +/-800kV DC power transmission line hot-line electrical inspection device |
| CN106291081A (en) * | 2016-08-17 | 2017-01-04 | 众芯汉创（北京）科技有限公司 | Far-field region electrical verification system and method |
| CN106597065A (en) * | 2016-12-10 | 2017-04-26 | 国网浙江省电力公司金华供电公司 | MEMS non-contact high-voltage direct current electroscope |
| CN107144742A (en) * | 2017-05-27 | 2017-09-08 | 绵阳市维博电子有限责任公司 | A kind of hand-held wideband environment of electric field tester and its electric field measurement method |
| CN108872689A (en) * | 2018-06-13 | 2018-11-23 | 国网浙江省电力有限公司金华供电公司 | A kind of UHVDC Transmission Lines electroscopic device based on feature electric and magnetic fields |
| CN208224370U (en) * | 2017-12-28 | 2018-12-11 | 国家电网公司 | A kind of non-contact prior-warning device of high direct voltage |
-
2019
- 2019-01-25 CN CN201910075398.8A patent/CN109521266A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819227A (en) * | 2010-03-10 | 2010-09-01 | 国网电力科学研究院 | 800kV extra-high voltage direct-current non-contact multichannel distance measurement type electroscope |
| CN201607477U (en) * | 2010-03-10 | 2010-10-13 | 国网电力科学研究院 | 800kV ultra-high voltage direct-current non-contact multichannel range-finding type electroscope |
| CN105676008A (en) * | 2016-01-15 | 2016-06-15 | 中国电力科学研究院 | Digital electric field sensor |
| CN105699742A (en) * | 2016-01-25 | 2016-06-22 | 中国电力科学研究院 | +/-800kV DC power transmission line hot-line electrical inspection device |
| CN106291081A (en) * | 2016-08-17 | 2017-01-04 | 众芯汉创（北京）科技有限公司 | Far-field region electrical verification system and method |
| CN106597065A (en) * | 2016-12-10 | 2017-04-26 | 国网浙江省电力公司金华供电公司 | MEMS non-contact high-voltage direct current electroscope |
| CN107144742A (en) * | 2017-05-27 | 2017-09-08 | 绵阳市维博电子有限责任公司 | A kind of hand-held wideband environment of electric field tester and its electric field measurement method |
| CN208224370U (en) * | 2017-12-28 | 2018-12-11 | 国家电网公司 | A kind of non-contact prior-warning device of high direct voltage |
| CN108872689A (en) * | 2018-06-13 | 2018-11-23 | 国网浙江省电力有限公司金华供电公司 | A kind of UHVDC Transmission Lines electroscopic device based on feature electric and magnetic fields |
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