CN110441560A - A kind of anti-interference electronic mutual inductor acquisition device and method - Google Patents
A kind of anti-interference electronic mutual inductor acquisition device and method Download PDFInfo
- Publication number
- CN110441560A CN110441560A CN201910878217.5A CN201910878217A CN110441560A CN 110441560 A CN110441560 A CN 110441560A CN 201910878217 A CN201910878217 A CN 201910878217A CN 110441560 A CN110441560 A CN 110441560A
- Authority
- CN
- China
- Prior art keywords
- double
- acquisition device
- mutual inductor
- low
- module
- 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
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filters And Equalizers (AREA)
Abstract
The invention discloses a kind of anti-interference electronic mutual inductor acquisition device and methods, isolation machine box is closed including electromagnetism, signal input/output interface, power module, controller, double A/D conversion module, low-pass filter, power module, controller, double A/D conversion module, low-pass filter is mounted in electromagnetism closing isolation machine box, electromagnetism closes isolation machine box and uses enclosed construction, the sealing joint of signal input/output interface and power module is connected on electromagnetism closing isolation machine box, signal input interface is electrically connected with low-pass filter, low-pass filter is electrically connected with double A/D module, double A/D module is electrically connected with the controller, controller is electrically connected with signal output interface.This invention removes electronic mutual inductor acquisition devices to be influenced in substation by electromagnetism, and eliminates influence of the generated high-frequency and high-voltage interference signal to acquisition device after Substation Operating isolation is opened the light, and improves acquisition device acquisition reliability.
Description
Technical field
The invention belongs to anti-interference electronic mutual inductor acquisition device technical fields, and in particular to a kind of anti-interference electronic type
Mutual inductor acquisition device and method.
Background technique
Mutual inductor ontology institute electric current, voltage are transferred to capture card, then pass through acquisition by electronic mutual inductor by small signal
Card converts the electrical signal to optical signal and is transferred to combining unit.Therefore, capture card is whether normal operation for electronic mutual inductor
It plays a crucial role.
Capture card is typically placed in the GIS terminal box by transforming plant primary equipment, and there are strong jamming, analyses for local environment
In recent years practical operating experiences and accident investigation conclusion, it can be found that electricity, magnetic and over the ground that substation's regular job can generate
Potential change, such variation will lead to capture card and generate instantaneous acquisition abnormity, or even capture card can be caused to damage, and seriously affect
Equipment operational safety.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of anti-interference electronic mutual inductor acquisition device and method, protect
Capture card is protected under strong interference environment from electromagnetic interference, it is ensured that it is operated normally, to solve problems of the prior art.
The technical scheme adopted by the invention is as follows: a kind of anti-interference electronic mutual inductor acquisition device, including electromagnetism closing every
It disembarks box, signal input/output interface, power module, controller (FPGA), double A/D conversion module, low-pass filter, power supply
Module, controller (FPGA), double AD conversion modules, low-pass filter be mounted on electromagnetism closing isolation machine box in, electromagnetism closing every
Box of disembarking uses enclosed construction, and the sealing joint of signal input/output interface and power module is connected to electromagnetism closing isolation machine
On box, signal input interface is electrically connected with low-pass filter, and low-pass filter is electrically connected with double A/D module, double A/D module and control
Device (FPGA) electrical connection processed, controller (FPGA) are electrically connected with signal output interface.
Preferably, above-mentioned electromagnetism closing isolation machine box closes isolation structure, the machine box including sealed connection using full aluminum
Main body and bottom plate.
Preferably, the specified DC220V of above-mentioned power module, output voltage are as follows: DC5V, ripple coefficient :≤5%, electromagnetism is simultaneous
Hold specific according to 4 grades or more indexs.
Preferably, the anti-aliasing analog filter of second order built in above-mentioned double A/D module.
Preferably, resistive element uses the noninductive resistance of Low Drift Temperature characteristic, electricity in filter circuit in above-mentioned low-pass filter
Container piece uses the noninductive capacitor of ceramic electrical perhaps CBB of ESI and ESR value lower (ESI is 20 milliohm).
A kind of acquisition method of anti-interference electronic mutual inductor acquisition device, this method are as follows: electronic mutual inductor high pressure letter
Number acquisition device is entered by signal input interface, is handled by low-pass filter and mask high-frequency and high-voltage interference and enter double A/D
Conversion module, double A/D conversion module are simultaneously acquired the analog signal of input using 2 A/D chips, reuse controller
Sampled data is integrated, interpolation and group packet handle, and the data conversion handled well exported at optical signal and is supplied to merging
Unit.
Beneficial effects of the present invention: compared with prior art, effect of the invention is as follows:
(1) present invention is by using the totally-enclosed electromagnetic isolation structure of the whole aluminium of electromagnetism, make acquisition device core be in electromagnetism every
From environment, eliminating electronic mutual inductor acquisition device is influenced in substation by electromagnetism；
(2) second order passive low ventilating filter is used, generated high-frequency and high-voltage interference after Substation Operating isolation is opened the light is eliminated
Influence of the signal to acquisition device improves acquisition device acquisition reliability；
(3) power supply for passing through 4 grades of electromagnetic compatibility or more index Designs, eliminates influence of the VFTO to power supply；
(4) data that the present invention can be widely applied to electronic type mutual-inductor in digitalization transforming plant acquire, strong antijamming capability,
Acquisition precision is high；
(5) present invention solves existing electronic mutual inductor acquisition device and is easy by electromagnetic interference, by the shadow of substation VFTO
Ring cause power supply damage, electrification switching on cause collector permanent fault, it is abnormal emit big number, collector crashes etc. actually asks
Topic, further improves the anti-interference ability of acquisition device.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Wherein: 1- electromagnetism closes isolation machine box, 2- power module, 3- controller (FPGA), 4- double A/D conversion module, 5-
Low-pass filter, 6- power supply and ground interface, 7- signal input interface, 8- fiber data output interface
Fig. 2 is hardware block diagram of the present invention.
Specific embodiment
With reference to the accompanying drawing and the present invention is described further in specific embodiment.
Embodiment: as Figure 1-Figure 2, a kind of anti-interference electronic mutual inductor acquisition device, including electromagnetism closing isolation
Machine box, signal input/output interface, power module, controller (FPGA), double A/D conversion module, low-pass filter, power supply mould
Block, controller (FPGA), double AD conversion modules, low-pass filter are mounted in electromagnetism closing isolation machine box, electromagnetism closing isolation
Machine box uses enclosed construction, and the sealing joint of signal input/output interface and power module is connected to electromagnetism closing isolation machine box
On, signal input interface is electrically connected with low-pass filter, and low-pass filter is electrically connected with double A/D module, double A/D module and control
Device (FPGA) electrical connection, controller (FPGA) are electrically connected with signal output interface.
Signal input interface 7 uses aviation plug, and fiber data output interface 8 uses optical fiber output mouth.
Preferably, above-mentioned electromagnetism closing isolation machine box closes isolation structure, the machine box including sealed connection using full aluminum
Main body and bottom plate.
Preferably, the specified DC220V of above-mentioned power module, output voltage are as follows: DC5V, ripple coefficient :≤5%, electromagnetism is simultaneous
Hold specific according to 4 grades or more indexs.
Preferably, above-mentioned double A/D module uses the sampling precision with 16bit, supports the sampling of 8 Channel Synchronous, input electricity
Pressure range reaches as high as ± 10V, supports single supply power supply, and the built-in anti-aliasing analog filter of second order, sample frequency reaches as high as
Built in 200kSPS.
Preferably, resistive element uses the noninductive resistance of Low Drift Temperature characteristic, electricity in filter circuit in above-mentioned low-pass filter
Container piece uses the noninductive capacitor of the lower ceramic electrical of ESI and ESR value perhaps CBB, to ensure that filter circuit has height good enough
Frequency characteristic.
Controller working frequency is up to 200Mhz；Logic gate number is up to 250k, and provides a large amount of on-chip memory cell.
Embodiment 2: a kind of acquisition method of anti-interference electronic mutual inductor acquisition device, this method are as follows: electronic type mutual inductance
Device high-voltage signal enters acquisition device by signal input interface, by low-pass filter handle mask high-frequency and high-voltage interfere into
Enter double A/D conversion module, double A/D conversion module is simultaneously acquired the analog signal of input using 2 A/D chips, reuses
Controller integrates sampled data, interpolation and group packet are handled, and the data conversion handled well is provided at optical signal output
To combining unit.
Anti-interference electronic mutual inductor acquisition device based on interference closing isolation of the invention has proposed a kind of high electricity
Magnetic is compatible, high-protection level electronic mutual inductor acquisition device, to improve the accuracy of electronic mutual inductor acquisition device and
Operational reliability, acquisition device damage or abnormal acquisition, can create good economic benefit caused by avoiding because of interference,
In addition, structure of the invention is novel, tailored appearance is easy for installation, has very big promotion price in the intelligent substation transported or created
Value.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Within protection scope of the present invention, therefore, protection scope of the present invention should be based on the protection scope of the described claims lid.
Claims (6)
1. a kind of anti-interference electronic mutual inductor acquisition device, it is characterised in that: defeated including electromagnetism closing isolation machine box, signal
Enter/output interface, power module, controller, double A/D conversion module, low-pass filter, power module, controller, double AD conversion
Module, low-pass filter are mounted in electromagnetism closing isolation machine box, and electromagnetism closes isolation machine box and uses enclosed construction, and signal is defeated
Enter/sealing joint of output interface and power module is connected on electromagnetism closing isolation machine box, signal input interface and low pass filtered
The electrical connection of wave device, low-pass filter are electrically connected with double A/D module, and double A/D module is electrically connected with the controller, and controller is defeated with signal
Outgoing interface electrical connection.
2. a kind of anti-interference electronic mutual inductor acquisition device according to claim 1, it is characterised in that: electromagnetism closing every
Box of disembarking closes isolation structure, machine box main body and bottom plate including sealed connection using full aluminum.
3. a kind of anti-interference electronic mutual inductor acquisition device according to claim 1, it is characterised in that: power module volume
Determine DC220V, output voltage are as follows: DC5V, ripple coefficient :≤5%, electromagnetic compatibility is specific according to 4 grades or more indexs.
4. a kind of anti-interference electronic mutual inductor acquisition device according to claim 1, it is characterised in that: double A/D module
The built-in anti-aliasing analog filter of second order.
5. a kind of anti-interference electronic mutual inductor acquisition device according to claim 1, it is characterised in that: low-pass filter
Resistive element uses the noninductive resistance of Low Drift Temperature characteristic, capacitor element ceramic electrical perhaps CBB is noninductive capacitor in middle filter circuit.
6. the acquisition method of -5 any a kind of anti-interference electronic mutual inductor acquisition devices according to claim 1, special
Sign is: this method are as follows: electronic mutual inductor high-voltage signal enters acquisition device by signal input interface, passes through low-pass filtering
Device processing masks high-frequency and high-voltage interference and enters double A/D conversion module, and double A/D conversion module is using 2 A/D chips simultaneously to defeated
The analog signal entered is acquired, reuse controller sampled data is integrated, interpolation and group packet processing, and will handle well
Data conversion at optical signal output be supplied to combining unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878217.5A CN110441560A (en) | 2019-09-17 | 2019-09-17 | A kind of anti-interference electronic mutual inductor acquisition device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878217.5A CN110441560A (en) | 2019-09-17 | 2019-09-17 | A kind of anti-interference electronic mutual inductor acquisition device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110441560A true CN110441560A (en) | 2019-11-12 |
Family
ID=68440447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910878217.5A Pending CN110441560A (en) | 2019-09-17 | 2019-09-17 | A kind of anti-interference electronic mutual inductor acquisition device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110441560A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111093171A (en) * | 2020-03-23 | 2020-05-01 | 北京全路通信信号研究设计院集团有限公司 | BTM data isolation acquisition equipment and acquisition method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063907A (en) * | 2012-12-26 | 2013-04-24 | 武汉烽火富华电气有限责任公司 | Electronic type voltage transformer signal collection system |
| CN106501580A (en) * | 2016-12-23 | 2017-03-15 | 中国西电电气股份有限公司 | A kind of integrated form isolation circuit breakers and its electronic transformer collector |
| CN106526275A (en) * | 2015-09-09 | 2017-03-22 | 福州怡辉电力设备有限公司 | Electronic current and voltage combined transformer |
| CN207764276U (en) * | 2017-12-01 | 2018-08-24 | 贵州电网有限责任公司 | Electronic transformer collector means for anti-jamming |
| CN210720512U (en) * | 2019-09-17 | 2020-06-09 | 贵州电网有限责任公司 | Anti-interference electronic transformer collection system |
-
2019
- 2019-09-17 CN CN201910878217.5A patent/CN110441560A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063907A (en) * | 2012-12-26 | 2013-04-24 | 武汉烽火富华电气有限责任公司 | Electronic type voltage transformer signal collection system |
| CN106526275A (en) * | 2015-09-09 | 2017-03-22 | 福州怡辉电力设备有限公司 | Electronic current and voltage combined transformer |
| CN106501580A (en) * | 2016-12-23 | 2017-03-15 | 中国西电电气股份有限公司 | A kind of integrated form isolation circuit breakers and its electronic transformer collector |
| CN207764276U (en) * | 2017-12-01 | 2018-08-24 | 贵州电网有限责任公司 | Electronic transformer collector means for anti-jamming |
| CN210720512U (en) * | 2019-09-17 | 2020-06-09 | 贵州电网有限责任公司 | Anti-interference electronic transformer collection system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111093171A (en) * | 2020-03-23 | 2020-05-01 | 北京全路通信信号研究设计院集团有限公司 | BTM data isolation acquisition equipment and acquisition method thereof |
| CN111093171B (en) * | 2020-03-23 | 2020-07-31 | 北京全路通信信号研究设计院集团有限公司 | BTM data isolation acquisition equipment and acquisition method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201846138U (en) | Breaker intelligent assembly based on unified section data acquisition | |
| CN110646663A (en) | Primary and secondary depth fusion combined sensor for vacuum circuit breaker | |
| CN106785982A (en) | A kind of high-tension switch gear | |
| CN110441560A (en) | A kind of anti-interference electronic mutual inductor acquisition device and method | |
| CN103066561B (en) | A kind of relay protection device based on chip | |
| CN208674732U (en) | Power concentration EMU high-voltage electrical box and power concentration EMU | |
| CN210720512U (en) | Anti-interference electronic transformer collection system | |
| CN106501580B (en) | Integrated isolation circuit breaker and electronic transformer collector thereof | |
| CN103337905A (en) | Digitalized protection and measuring/control device integrated with metering function | |
| CN202678082U (en) | Electronic transformer collector with overcurrent and overvoltage prevention function | |
| CN203423479U (en) | Miniature low-voltage motor integrated protection device | |
| CN207732417U (en) | A kind of Fault Isolation intelligent measuring and control device | |
| CN110196350A (en) | Bottom shielding of bushing earthing or grounding means, leakage current collection system and method | |
| CN201860126U (en) | Monitoring protection comprehensive device of low voltage unit | |
| CN114242509A (en) | Breaker on deep fusion column | |
| CN212967520U (en) | Novel pole-mounted circuit breaker | |
| CN201278459Y (en) | Digital transformer protection apparatus | |
| CN104617563B (en) | The special protective relaying device of ring main unit | |
| CN209545010U (en) | A kind of integrated protection and monitoring device | |
| CN210073705U (en) | 10KV vacuum circuit breaker with wave recording function | |
| CN209448321U (en) | One or two fusion ring network cabinets | |
| CN208672705U (en) | A kind of capacitive external electric pressure sensor of killer switch | |
| CN201260069Y (en) | Digital line protective device | |
| CN202475023U (en) | Protection measurement and control device for carrying out high-precision measurement on small signals | |
| CN206533044U (en) | High-tension switch gear |
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 |