CN207301182U - Sensitive spot complex electrical field measuring system below a kind of alternating current-direct current joint line - Google Patents
Sensitive spot complex electrical field measuring system below a kind of alternating current-direct current joint line Download PDFInfo
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- CN207301182U CN207301182U CN201721265970.XU CN201721265970U CN207301182U CN 207301182 U CN207301182 U CN 207301182U CN 201721265970 U CN201721265970 U CN 201721265970U CN 207301182 U CN207301182 U CN 207301182U
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Abstract
The utility model discloses sensitive spot complex electrical field measuring system below a kind of alternating current-direct current joint line, including for detecting sensor, communication unit, data display unit and the ground connection pole plate of complex electrical field；Sensor includes ground connection reference type probe and ground connection rotating vane on tri- direction of principal axis of X/Y/Z；Communication unit includes signal conditioning circuit and Zigbee communication and ad hoc network unit；Wireless communication is carried out using Zigbee modes between sensor and data display unit；Data display unit, real time data displaying and analysis are carried out for the power frequency component to being uploaded by communication unit and DC component, and carry out automatic calculate with checking to the different height that measure.The utility model can realize alternating current-direct current mixed set-up circuit complex electrical field measurement and data analysis in real time.
Description
Technical field
Alternating current-direct current project of transmitting and converting electricity technical field is the utility model is related to, is mixed more specifically to a kind of alternating current-direct current
Sensitive spot complex electrical field measuring system below circuit.
Background technology
As China's super-pressure and the continuous of UHV transmission line are built, National Power System is on national network, north and south is mutual
The implementation of logical, transferring electricity from the west to the east etc., and the construction of extra-high-voltage alternating current 1000kV power grids related to direct current ± 800kV, China's power grid
The conveying general layout of AC/DC parallel has basically formed.In China East China, North China and the Northwest, since transmission of electricity corridor is in short supply, mesh
It is preceding transmission line of alternation current and the parallel situation of DC power transmission line occurred.In this case space electric field is by alternating current-direct current
Circuit coupling influences, and differs widely with single alternating current circuit and DC line.Measure AC/DC parallel powerline
Complex electrical field have become the important content of transmission line of electricity electromagnetic environment research.
China is also without AC/DC parallel circuit complex electrical field measurement standard executable in detail, relevant research at present
Also among progressively carrying out, how complex electrical field accurately to be measured at the same time, the research to electromagnetic environment plays most important
Effect.According to《DLT1089-2008 DC converter stations and circuit combination field strength, ion flow density measurement method》In to measurement
Illustrate generally use field mill in instrument to measure ground formate field intensity, field mill should use the metallic plate of 1m × 1m to be referred to as ground connection
Plane, and by its reliable ground, not only area is big but also very heavy for this reference earthing type plate type electrode, gives in-site measurement band
Carry out greatly inconvenience；Formate field intensity is generally surveyed and extremely projected over the ground at outer 50m apart from side conducting wire under circuit, resultant field probe nothing
Line communication mode is easily disturbed by scene.In addition, sensitive spot is often positioned among local-style dwelling houses, farmland below transmission line of electricity, some situations
Under, narrow space and cannot meet fixed size aluminium sheet disengaging condition.During how to AC/DC transmission line mixed set-up
Electric field carries out science, accurately measurement has become the emphasis of industry research.
The content of the invention
The technical problems to be solved in the utility model is, there is provided sensitive spot mixing electricity below a kind of alternating current-direct current joint line
Field measurement system.
Technical solution is used by the utility model solves its technical problem：Construct below a kind of alternating current-direct current joint line
Sensitive spot complex electrical field measuring system, including for detecting the sensor of complex electrical field, communication unit, data display unit and connecing
Ground pole plate；
The sensor includes ground connection reference type probe and ground connection rotating vane on tri- direction of principal axis of X/Y/Z, wherein described
It is grounded reference type probe and is used for power frequency electric field measurement, the ground connection rotating vane is measured for total electric field；
The communication unit includes signal conditioning circuit and Zigbee communication and ad hoc network unit, the signal conditioning circuit
Including filter circuit, ac-dc converter circuit, amplifying circuit, the filter circuit is used to filter out the high-frequency signal in electric field signal
And low frequency signal, the ac-dc converter circuit is used to the alternating signal of filter circuit output being converted to direct current signal, described
Amplifying circuit is used to the signal of collection being amplified to volt level；The Zigbee communication is used to communicate in sensor with ad hoc network unit
Free networking is realized when interruption can not carry out data transmission between data display unit；
Wireless communication is carried out using Zigbee modes between the sensor and data display unit；
The data display unit, is counted in real time for the power frequency component to being uploaded by communication unit and DC component
Automatic calculate with checking is carried out according to displaying and analysis, and to the different height that measure.
In such scheme, 0.5m × 0.5m × 2mm carbon fiber boards that the ground connection pole plate folds connection by two pieces are formed,
Four corners of the carbon fiber board are provided with length-adjustable stent and ground terminal, for adjusting the height of the carbon fiber board
Degree and levelness, a hole consistent with sensor appearance and size is offered in the middle part of the carbon fiber board, and hole alignment ground connection is joined
Examine type probe.
The utility model also provides sensitive spot complex electrical field measuring method below a kind of alternating current-direct current joint line, including following
Step：
Step S010,20 sensors of sensitive spot location arrangements below alternating current-direct current mixed power transmission line, are grounded on pole plate
Hole alignment ground connection reference type probe；
Step S020, is grounded reference type probe measurement power frequency electric field, ground connection rotating vane measurement total electric field, direct current synthesis
Field and power frequency electric field signal are inputted to signal conditioning circuit；
Step S030, filter circuit filter out high-frequency signal and low frequency signal in electric field signal, and ac-dc converter circuit will
The alternating signal of filter circuit output is converted to direct current signal, and the signal of collection is amplified to volt level by amplifying circuit；
Step S040, the signal handled through signal conditioning circuit is sent to data using Zigbee communications to be shown
Unit；
Step S050, data display unit count the power frequency component and DC component that are uploaded by communication unit in real time
Automatic calculate with checking is carried out according to displaying and analysis, and to the different height that measure.
Preferably, in the step S010, its height and levelness are adjusted by the stent in four corners of carbon fiber board.
Preferably, in the step S040, the 10th sensor is arranged to global function node, operative sensor with
Sensor searches global function node and asks to add when communication failure occurs in data display unit, realizes ad hoc network.
Implement sensitive spot complex electrical field measuring system below a kind of alternating current-direct current joint line of the utility model, have with following
Beneficial effect：
1st, the sensor of sensitive spot complex electrical field measuring system and data are shown below the utility model alternating current-direct current joint line
Show and wireless communication is carried out using Zigbee modes between unit, communication ad hoc network can be carried out, under the conditions of meeting different measurement distances
Measurement work.
2nd, for the ground connection pole plate of the utility model using height and the adjustable carbon fiber board of levelness, carbon fiber density is small, adds
It is foldable, be convenient for measuring personnel's carrying, can pass in and out and installed in narrow occasion, it is highly adjustable with levelness, can adapt to
The various rough topographys in field.
3rd, the utility model can not meet the situation for measuring requirement for height for on-the-spot test, can pass through input measurement height
Equivalent Conversion is spent for canonical measure height, meets on-the-spot test requirement under different terrain conditions.
Brief description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is a kind of block schematic illustration of sensitive spot complex electrical field measuring system below alternating current-direct current joint line；
Fig. 2 is the folding picture that pole plate is grounded in the utility model；
Fig. 3 is the expanded view that pole plate is grounded in the utility model.
In figure：Ground terminal 1, stent 2, carbon fiber board 3.
Embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, it is detailed now to compare attached drawing
Illustrate specific embodiment of the present utility model.
As shown in Figure 1, the utility model provides sensitive spot complex electrical field measuring system below a kind of alternating current-direct current joint line,
Including the sensor for detecting complex electrical field, communication unit, data display unit and ground connection pole plate.
Sensor includes ground connection reference type probe and ground connection rotating vane on tri- direction of principal axis of X/Y/Z, wherein, ground connection reference
Type probe is used for power frequency electric field and measures, and ground connection rotating vane is measured for total electric field.
Communication unit includes signal conditioning circuit and Zigbee communication and ad hoc network unit.Signal conditioning circuit includes filtering
Circuit, ac-dc converter circuit, amplifying circuit, filter circuit are used to filter out the high-frequency signal and low frequency signal in electric field signal,
Ac-dc converter circuit is used to the alternating signal of filter circuit output being converted to direct current signal, and amplifying circuit is used for collection
Signal is amplified to volt level.Zigbee communication based on Zigbee communication stipulations, has low-power consumption, two-way with ad hoc network unit
The advantages that letter, free networking.Generally easily there is communication failure when being more than 100m in sensor arrangement distance, can not be shown with data single
Carry out data transmission between member, Zigbee communication realizes that sensor is shown with data with ad hoc network unit by free networking at this time
Carry out data transmission between unit.
Wireless communication is carried out using Zigbee modes between sensor and data display unit, signal sends to data and shows
Analyzed and preserved to database after unit.
Data display unit, real time data exhibition is carried out for the power frequency component to being uploaded by communication unit and DC component
Show and analyze, and automatic calculating is carried out to different measurement height and is checked., can when measurement height can not meet 10cm requirements
By testing the model automatic Check measured to the electric field strength of 10cm situations.
As shown in Fig. 2, 0.5m × 0.5m × 2mm carbon fiber boards 3 that ground connection pole plate folds connection by two pieces are formed, carbon fiber
Four corners of plate 3 are provided with length-adjustable stent 2 and ground terminal 1, for carbon to be adjusted flexibly according to on-the-spot test environment
The height and levelness of fiberboard 3, a hole consistent with sensor appearance and size, hole alignment are offered in the middle part of carbon fiber board
It is grounded reference type probe.The expanded view of two pieces of carbon fiber boards 3 is as shown in Figure 3.It is flexible to be grounded pole plate, it is small, it is light-weight,
Height and levelness degree are adjustable, are easy to use.
The utility model also provides sensitive spot complex electrical field measuring method below a kind of alternating current-direct current joint line, including following
Step：
Step S010,20 sensors of sensitive spot location arrangements below alternating current-direct current mixed power transmission line, are grounded on pole plate
Hole alignment ground connection reference type probe.For the situation that the sensitive space of points is too big and earthing pole plate level degree is not high, can first by
The top of ground connection reference type probe is placed on after electrode expansion, then adjusts the stent in four corners of carbon fiber board, makes ground connection pole plate
Height and levelness meet the requirements after can carry out measurement.It can not meet the situation of 10cm requirements for measurement height, to not
With the highly equivalent electric field conditions of height electric field value automatic Check to 10cm.
Step S020, is grounded reference type probe measurement power frequency electric field, ground connection rotating vane measurement total electric field, direct current synthesis
Field and power frequency electric field signal are inputted to signal conditioning circuit.
Step S030, filter circuit filter out high-frequency signal and low frequency signal in electric field signal, and ac-dc converter circuit will
The alternating signal of filter circuit output is converted to direct current signal, and the signal of collection is amplified to volt level by amplifying circuit.
Step S040, the signal handled through signal conditioning circuit is sent to data using Zigbee communications to be shown
Unit.10th sensor is arranged to global function node, which possesses the ability of Zigbee coordinators, in part
Sensor is realized freely by searching global function node and asking to add when sensor communication failure occurs with data display unit
Networking so that data transfer recovers normal between sensor and data display unit.
Step S050, the neighbouring sensor of data display unit search and measuring unit, both start to measure after matching
With reading data, the parameters such as pendulous frequency, time interval, time of measuring, distance away the ground are configured, to passing through communication unit
The power frequency component and DC component of upload carry out real time data displaying and analysis.Data display unit is also equipped with electric field and checks work(
Can, the situation of 10cm requirements can not be highly met for measurement, different measurement height calculate and check automatically, to meet
It is scaled to canonical measure height.
The embodiment of the utility model is described above in conjunction with attached drawing, but the utility model is not limited to
The embodiment stated, above-mentioned embodiment is only schematical, rather than restricted, this area it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (2)
1. sensitive spot complex electrical field measuring system below a kind of alternating current-direct current joint line, it is characterised in that including mixed for detecting
Close sensor, communication unit, data display unit and the ground connection pole plate of electric field；
The sensor includes ground connection reference type probe and ground connection rotating vane on tri- direction of principal axis of X/Y/Z, wherein the ground connection
Reference type probe is used for power frequency electric field and measures, and the ground connection rotating vane is measured for total electric field；
The communication unit includes signal conditioning circuit and Zigbee communication and ad hoc network unit, and the signal conditioning circuit includes
Filter circuit, ac-dc converter circuit, amplifying circuit, the filter circuit are used to filtering out high-frequency signal in electric field signal and low
Frequency signal, the ac-dc converter circuit are used to the alternating signal of filter circuit output being converted to direct current signal, the amplification
Circuit is used to the signal of collection being amplified to volt level；The Zigbee communication is used in sensor communication disruption with ad hoc network unit
Free networking is realized when can not carry out data transmission between data display unit；
Wireless communication is carried out using Zigbee modes between the sensor and data display unit；
The data display unit, real time data exhibition is carried out for the power frequency component to being uploaded by communication unit and DC component
Show and analyze, and automatic calculating is carried out to different measurement height and is checked.
2. sensitive spot complex electrical field measuring system below alternating current-direct current joint line according to claim 1, it is characterised in that
0.5m × 0.5m × 2mm carbon fiber boards that the ground connection pole plate folds connection by two pieces are formed, four angles of the carbon fiber board
Fall to be provided with length-adjustable stent and ground terminal, for adjusting the height and levelness of the carbon fiber board, the carbon is fine
A hole consistent with sensor appearance and size, hole alignment ground connection reference type probe are offered in the middle part of dimension plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265970.XU CN207301182U (en) | 2017-09-29 | 2017-09-29 | Sensitive spot complex electrical field measuring system below a kind of alternating current-direct current joint line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265970.XU CN207301182U (en) | 2017-09-29 | 2017-09-29 | Sensitive spot complex electrical field measuring system below a kind of alternating current-direct current joint line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207301182U true CN207301182U (en) | 2018-05-01 |
Family
ID=62440157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721265970.XU Active CN207301182U (en) | 2017-09-29 | 2017-09-29 | Sensitive spot complex electrical field measuring system below a kind of alternating current-direct current joint line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207301182U (en) |
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2017
- 2017-09-29 CN CN201721265970.XU patent/CN207301182U/en active Active
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