CN106500586A - One kind is using wind tunnel experiment analog insulation substring windage yaw angle measuring system and method - Google Patents
One kind is using wind tunnel experiment analog insulation substring windage yaw angle measuring system and method Download PDFInfo
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- CN106500586A CN106500586A CN201710015142.9A CN201710015142A CN106500586A CN 106500586 A CN106500586 A CN 106500586A CN 201710015142 A CN201710015142 A CN 201710015142A CN 106500586 A CN106500586 A CN 106500586A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention discloses a kind of utilize wind tunnel experiment analog insulation substring windage yaw angle measuring system and method, including：Wind-tunnel, ventilation unit, at least three shaft tower insulator chain models, angle of wind deflection monitoring modular and long-range monitoring platform；The wind-tunnel includes wind tunnel noumenon, is sequentially provided with entrance, power section, changeover portion, stable section, contraction section, experimental section and diffuser on wind tunnel noumenon；Power section of the ventilation unit installed in wind tunnel noumenon；Experimental section of the shaft tower insulator chain model installed in wind tunnel noumenon；The angle of wind deflection monitoring modular on the shaft tower insulator chain model, real-time monitoring insulator chain windage yaw angular data, and long-range monitoring platform is sent to by wireless-transmission network is processed.The present invention directly can carry out the measurement of angle of wind deflection using wind-tunnel come modeling wind field, be tested without building actual electric power line pole tower, and can ensure that and obtain accurately experimental result.
Description
Technical field
The present invention relates to the sub- experimental technique field of High-Voltage Insulation, specifically a kind of using wind tunnel experiment analog insulation
Substring windage yaw angle measuring system and method.
Background technology
The insulator chain windage yaw electric discharge of transmission line of electricity always affects one of difficult problem of circuit stable operation.With thunderbolt etc. its
His reason causes tripping operation different, and after circuit occurs windage yaw tripping operation, the probability that successfully closes a floodgate is not high, and this will be made to electric power system
Into greatly loss.In terms of being divided into endogenous cause of ill and exopathogenic factor two according to the reason for the experience that related scholar studies for many years, generation windage yaw, interior
Because being that exopathogenic factor is then that high wind and severe meteorological condition are caused as insulator chain wind resistance level partially itself is not enough.Windage yaw
The mechanism of the generation of electric discharge is：Under high wind conditions, insulator chain is acted on by wind-force, will be to the close generation of shaft tower partially
Move, with vertical direction shape at an angle, as angle of wind deflection.Angle of wind deflection size depends on the deadweight of wind speed, insulator chain and wire
Etc. factor, when which reaches to a certain degree, as the distance of insulator chain and shaft tower is already less than between air when normally running
Gap, there is disruptive discharge in air-gap under power-frequency voltage.
Due to present increasing voltage levels, at a distance, the transmission line of electricity of Great span puts into operation, now without
Method thoroughly solve windage yaw discharge this difficult problem when, in order to ensure the safe and stable operation of transmission line of electricity, it is necessary to carry out power transmission line
The insulator chain windage yaw monitoring on road, and insulator chain is carried out windage yaw monitoring most important, be measure angle of wind deflection big
Little, then release whether insulator chain is met the requirements with the air gap of shaft tower further according to formula.At present, to insulator chain windage yaw
The detection at angle typically adopts two methods, and one kind is surveyed by mounted angle sensor on suspended compound insulator string
Sensor can only be arranged on the not charged position in insulator chain top in install sensor by amount, the method, when simply bottom
Insulator side-play amount very big when, and now insulator chain is not close to shaft tower and windage yaw electric discharge does not occur, Jiu Huizao
Into wrong report, it is difficult to accurately early warning.Another kind be by measuring wind speed near insulator chain, wind direction, temperature, the parameter such as humidity,
Angle of wind deflection is calculated using angle of wind deflection computing formula, the method is restricted by sensor accuracy and selected mathematical model, and mathematical modulo
The various parameters for affecting windage yaw all can not be considered detailed by type completely, there is certain error.Both the above method all has to
Carry out at the shaft tower of actual transmission line of electricity, operate extremely inconvenience, while there is certain danger.
In sum, the measuring method to insulator angle of wind deflection that presently, there are be present, it is therefore necessary to seek
A kind of more simple and convenient reliable method.
Content of the invention
For the problems referred to above, the present invention proposes one kind using wind tunnel experiment analog insulation substring windage yaw angle measuring system and side
Method, directly can be carried out the measurement of angle of wind deflection, be entered without building actual electric power line pole tower using wind-tunnel come modeling wind field
Row experiment, and can ensure that and obtain accurately experimental result.
Above-mentioned technical purpose is realized, above-mentioned technique effect is reached, the present invention is achieved through the following technical solutions：
A kind of measuring system of utilization wind tunnel experiment analog insulation substring angle of wind deflection, it is characterised in that include：Wind-tunnel, logical
Wind apparatus, at least three shaft tower insulator chain models, angle of wind deflection monitoring modular and long-range monitoring platform；The wind-tunnel includes wind-tunnel
Body, is sequentially provided with entrance, power section, changeover portion, stable section, contraction section, experimental section and diffuser on wind tunnel noumenon；Described logical
Power section of the wind apparatus installed in wind tunnel noumenon；Experimental section of the shaft tower insulator chain model installed in wind tunnel noumenon, wherein,
Connected by wire between adjacent shaft tower insulator chain model, each shaft tower insulator chain model lateral separation is arranged on wind-tunnel sheet
The experimental section of body；The angle of wind deflection monitoring modular is arranged on shaft tower insulator chain model, real-time monitoring insulator chain angle of wind deflection
Data, and long-range monitoring platform is sent to by wireless-transmission network is processed.
As a further improvement on the present invention, the angle of wind deflection monitoring modular includes the acceleration sensing for sequentially electrically connecting
The data transfer for collecting to sensor signal is adjusted by device, sensor signal conditioning circuit and radio circuit, acceleration transducer
After reason circuit carries out pretreatment, sent by radio circuit.
As a further improvement on the present invention, the angle of wind deflection monitoring modular is arranged on shaft tower insulator chain model bottom.
As a further improvement on the present invention, the measurement of described a kind of utilization wind tunnel experiment analog insulation substring angle of wind deflection
System, also includes aggregation node, and the aggregation node includes coordinator, wireless transport module；The coordinator be used for packing by
Radio circuit is sent to the insulator chain windage yaw angular data of aggregation node, and is sent to wireless transport module through protocol conversion,
Wireless transport module is used for for the insulator chain windage yaw angular data for receiving being sent to long-range monitoring platform by wireless-transmission network
Processed.
As a further improvement on the present invention, the shaft tower insulator chain model includes shaft tower, wire and insulator chain, leads
Line is connected with shaft tower by insulator chain.
As a further improvement on the present invention, when the quantity of shaft tower insulator chain model is 3, adjacent shaft tower insulator
Connected by wire between string model, experimental section of each shaft tower insulator chain model lateral separation installed in wind tunnel noumenon.
As a further improvement on the present invention, the ventilation unit is the axial-flow type wind driven by frequency conversion threephase asynchronous machine
Machine.
A kind of measuring method of utilization wind tunnel experiment analog insulation substring angle of wind deflection, comprises the following steps：
(1) shaft tower insulator chain model is placed horizontally in the experimental section of wind tunnel noumenon, while by angle of wind deflection monitoring modular
On shaft tower insulator chain model；
(2) start the ventilation unit generation wind field for being located at wind tunnel noumenon power section；
(3) the artificial wind in wind field is stable sequentially through being formed after the changeover portion of wind tunnel noumenon, stable section, contraction section
Wind, the horizontal shaft tower insulator chain model that blows of stable wind form angle of wind deflection；
(4) the acceleration transducer measurement in angle of wind deflection monitoring modular output voltage signal, and the voltage signal for exporting
Improved type angle algorithm obtains corresponding angle-data, then the angle-data of gained is input to sensor signal conditioning circuit
The angle information of angle of wind deflection is obtained after carrying out pretreatment；Radio circuit is by the angle information of angle of wind deflection after pretreatment by wireless biography
Defeated network transmission is to long-range monitoring platform；
(5) last long-range monitoring platform is analyzed process to the angle information of the angle of wind deflection for receiving, and excludes abnormal number
According to so as to obtain accurate experimental result.
As a further improvement on the present invention, in step (4), the angle of angle of wind deflection after pretreatment is believed by radio circuit
Breath is transmitted by wireless-transmission network and is specially to long-range monitoring platform：Radio circuit is by the angle information of angle of wind deflection after pretreatment
Transmit to aggregation node, the Angle Information data of angle of wind deflection is packed and sent through protocol conversion by the coordinator in aggregation node
Wireless transport module is given, then is sent to long-range monitoring platform through base station by wireless transport module.
As a further improvement on the present invention, the wireless transport module is GPRS communication modules；The radio circuit is
ZigBee radio circuits.
Beneficial effects of the present invention：
The present invention proposes one kind using wind tunnel experiment analog insulation substring windage yaw angle measuring system and method, can be directly sharp
The measurement that angle of wind deflection is carried out come modeling wind field with wind-tunnel, is tested without building actual electric power line pole tower, and can
To ensure to obtain accurately experimental result, easy to operate, not dangerous.
Description of the drawings
Direct current blow down wind tunnel structural representations of the Fig. 1 for an embodiment of the present invention；
Model schematics by three piece generic linear shaft tower, wire and insulator chains of the Fig. 2 for an embodiment of the present invention；
Acceleration transducer measurement insulator chain angle of wind deflection schematic diagrams of the Fig. 3 for an embodiment of the present invention；
Insulator chain windage yaw measuring system structure composition schematic diagrams of the Fig. 4 for an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only in order to explain the present invention
Limit the present invention.
Below in conjunction with the accompanying drawings the application principle of the present invention is explained in detail.
As shown in Figure 1-2, a kind of measuring system of utilization wind tunnel experiment analog insulation substring angle of wind deflection, including：Wind-tunnel, logical
Wind apparatus, at least one shaft tower insulator chain model, angle of wind deflection monitoring modular and long-range monitoring platform；The wind-tunnel includes wind-tunnel
Body, is sequentially provided with entrance 11, power section 12, changeover portion 13, stable section 14, contraction section 15,16 and of experimental section on wind tunnel noumenon
Diffuser 17；Power section 12 of the ventilation unit 18 installed in wind tunnel noumenon；The shaft tower insulator chain model 19 is arranged on
The experimental section 16 of wind tunnel noumenon, wherein, is connected by wire between adjacent shaft tower insulator chain model, each shaft tower insulator chain
Experimental section of the model lateral separation installed in wind tunnel noumenon；The angle of wind deflection monitoring modular is arranged on shaft tower insulator chain model 19
On, real-time monitoring insulator chain windage yaw angular data, and long-range monitoring platform 47 is sent to by wireless-transmission network is processed.
Wherein power section 12：Source of the gas, the interior axial fan driven by frequency conversion threephase asynchronous machine are provided for wind-tunnel
Composition, motor obtain different wind speed air-flows by frequency control；Changeover portion 13：It is to ensure that the stable pneumatic property of experimental section
Supplementary structure designed by energy；Stable section 14 is made up of noise elimination wall, birdcage air inlet, honeycomb, damping screen, by stable section
14 and contraction section 15 by air-flow be organized into level ideal flow field；Experimental section 16：It is used for placing shaft tower insulation submodel, carries out windage yaw
Where experiment；Diffuser 17：The gas for flowing out experimental section discharges wind-tunnel through diffuser.
In an embodiment of the present invention, the wind-tunnel is direct current blow down wind tunnel, and which also includes drive system and survey
Amount control system；Long-range monitoring platform mainly includes human-computer interaction interface, TCP server part and data base part.
As shown in figure 3, the angle of wind deflection monitoring modular includes the acceleration transducer 41, sensor signal for sequentially electrically connecting
Modulate circuit 42 and radio circuit, the voltage signal that acceleration transducer is measured and exported can be counted through modified model angle algorithm
Angle-data is calculated, the angle-data of gained is transferred to sensor signal conditioning circuit then is carried out after pretreatment, by radio frequency
Circuit 43 sends.Preferably, the radio circuit uses Zigbee chip CC2530F256；One kind in the present invention
In embodiment, angle of wind deflection monitoring modular also include for power power supply, mu balanced circuit, mu balanced circuit is arranged on power supply and radio frequency
Between circuit, for ensureing that what whole system powered stablizes.Angle of wind deflection monitoring modular is also referred to as terminal monitoring node.
In the present invention, the angle of wind deflection monitoring modular is arranged on 19 bottom of shaft tower insulator chain model, it is preferable that pass through
Ball-eye is installed in the bottom of insulator chain (it is highly preferred that the angle of wind deflection monitoring modular is arranged on is not located at most two ends
Shaft tower insulator chain model on), with insulator chain rotation and rotate.In an embodiment of the present invention, described plus
Acceleration transducer of the velocity sensor using model SCA100T-D02, SCA100T-D02 sensors are that one kind is based on 3D-
The acceleration transducer of MEMS technology, with instrument grades such as low temperature impact, high-resolution, low noise and strong antijamming capabilities
Performance.The survey axle of sensor internal sensing unit is parallel with horizontal and vertical face respectively, can be used for horizontal direction, vertical direction and surveys
(this model acceleration transducer itself has the function that horizontal direction, vertical direction are measured to amount, and which measures details here and does not just do
Repeat).
As shown in figure 4, a kind of measuring system of described utilization wind tunnel experiment analog insulation substring angle of wind deflection, also includes converging
Poly- node, the aggregation node include coordinator 44, wireless transport module 45；The coordinator 44 is used for packing by radio circuit
The insulator chain windage yaw angular data of aggregation node is sent to, and wireless transport module 45 is sent to through protocol conversion, wireless biography
Defeated module 45 is entered for the insulator chain windage yaw angular data for receiving is sent to long-range monitoring platform 47 by wireless-transmission network
Row is processed.In an embodiment of the present invention, the aggregation node also include for power power supply, mu balanced circuit, voltage stabilizing
Circuit is arranged between power supply and coordinator and wireless communication module, and wireless communication module can be GPRS communication circuit modules,
The SIM900A chips that GPRS communication circuit modules are used.
The shaft tower insulator chain model includes that shaft tower 23, wire 22 and insulator string 21, wire 22 pass through insulator chain
21 are connected with shaft tower 23.
When the quantity of shaft tower insulator chain model is 3, connected by wire between adjacent shaft tower insulator chain model,
Experimental section of each shaft tower insulator chain model lateral separation installed in wind tunnel noumenon.In an embodiment of the present invention, including
Three tower insulator chain models, wherein measurement apparatus are installed in middle Tower Model insulator chain bottom.Exhausted using three shaft towers
Edge substring model is the shaft tower situation for making its preferably simulating reality, such as the Tower Model on both sides be exactly in order to hang wire and
Stress on analog conducting wire.
In an embodiment of the present invention, the ventilation unit is the axial-flow type wind driven by frequency conversion threephase asynchronous machine
Machine, for producing air-flow；Wind speed can be changed by the input power of regulation motor.
A kind of measuring method of utilization wind tunnel experiment analog insulation substring angle of wind deflection, comprises the following steps：
(1) shaft tower insulator chain model is placed horizontally in the experimental section of wind tunnel noumenon, while by angle of wind deflection monitoring modular
On shaft tower insulator chain model；
(2) start the ventilation unit generation wind field for being located at wind tunnel noumenon power section；Dynamic wind is horizontal blows shaft tower insulator for simulation
String model；
(3) the artificial wind formed in wind field is stable sequentially through being formed after the changeover portion of wind tunnel noumenon, stable section, contraction section
Wind, stable wind is horizontal to blow shaft tower insulator chain model, causes insulator chain on shaft tower insulator chain model to produce skew, partially
The position of shifting forms angle of wind deflection with vertical direction；The acceleration sensing being now installed in the angle of wind deflection monitoring modular of ball-eye
Device proceeds by measurement；
(4) the acceleration transducer measurement in angle of wind deflection monitoring modular output voltage signal, and the voltage signal for exporting
Improved type angle algorithm obtains corresponding angle-data, then the angle-data of gained is input to sensor signal conditioning circuit
The angle information of angle of wind deflection is obtained after carrying out pretreatment；Radio circuit is by the angle information of angle of wind deflection after pretreatment by wireless biography
Defeated network transmission is to long-range monitoring platform；
Angle of wind deflection measuring principle is：Acceleration transducer employs 3D-MEMS technology, with instrument grade performance, acceleration
The voltage signal of sensor output can calculate angle information through modified model angle algorithm process, and the acceleration transducer can
Measurement in the level of carrying out, vertical both direction, when insulator chain produces windage yaw, the windage yaw monitoring modular on ball-eye
The angle, θ formed with horizontal direction2, it is equal in fact angle of wind deflection θ1(being specifically shown in Fig. 3), this can be obtained according to mathematical angle theory
Go out, that is to say, that the angle information of angle of wind deflection can be reacted directly on angle of wind deflection monitoring modular.
Modified model angle algorithm is a kind of angle algorithm of temperature-compensating correction.Wherein SCA100T-D02 acceleration sensings
The simulation output of device is voltage signal, and simulation output is converted to actual corners angle value using formula (1)：
In formula (1), VoutRepresent the analog output voltage value of SCA100T-D02 sensors；V0Represent SCA100T-
D02 sensors are in analog output voltage value when 0 °, typically take 2.5V；Sensitivity of the K for SCA100T-D02 sensors, one
As take 2V/g；By calculated α angles then for SCA100T-D02 detections.
In order that gathered data is more accurate, can be compensated because of temperature using the algorithm of acceleration transducer data book offer
The skew of the output angle that degree changes and causes, the algorithm combine the temperature information and temperature dependence curve of acceleration transducer
The angle for measuring is corrected；The algorithm can represent with formula (2) and (3) that formula (2) is used for calculating in different temperatures
The lower angle value for needing compensation, formula (3) are used for calculating the actual corners angle value after compensating.
Δ α=- 6 × 10-7*T3+10-4*T2-3.9×10-3*T+0.0522 (2)
α '=α-Δ α (3)
In formula (2) and (3), T represents that the temperature of acceleration transducer local environment, Δ α are represented in corresponding temperature
The angle value of compensation required for lower, α are the angle value without compensation correction, and by the calculated angle of formula (1),
α ' is then the angle value after compensation correction.The i.e. last angle value α ' that we obtain, that is, the θ reflected in Fig. 32,
The angle of wind deflection for namely measuring.
(5) last long-range monitoring platform is analyzed process to the angle information of the angle of wind deflection for receiving, and excludes abnormal number
According to so as to obtain accurate experimental result.
In an embodiment of the present invention, in step (4), radio circuit is by the angle of the angle of wind deflection for calculating
Information is transmitted by wireless-transmission network and is specially to long-range monitoring platform：Radio circuit is by the angle of the angle of wind deflection for calculating
To aggregation node, the coordinator in aggregation node is by the angle of angle of wind deflection for the network transmission that information is formed by ZigBee self-organizings
Information data packing is simultaneously sent to wireless transport module through protocol conversion, then by wireless transport module through base station 46 send to
Long-range monitoring platform.
Aggregation node is integrated with coordinator (preferably ZigBee coordinators) and GPRS communication modules, angle of wind deflection monitoring system
Aggregation node be responsible for ZigBee radio sensing networks and Internet network link together, in two kinds of network transmission protocols
On the basis of achieve the data interaction of field monitoring data and remote server.Insulator chain angle of wind deflection monitoring system exists
On the basis of ZigBee intelligence MANETs, communicate in conjunction with GPRS data, the real time remote for just achieving angle of wind deflection Monitoring Data is passed
Defeated.
In step (2), ventilation unit is the axial fan that frequency conversion threephase asynchronous machine drives, and which is used for providing and stablizes
Wind regime, wind speed can be changed by the input power of regulation motor.
The wireless transport module is GPRS communication modules；The radio circuit is ZigBee radio circuits.
To sum up：
A kind of method implementation process of utilization wind tunnel experiment analog insulation substring windage yaw angular measurement is as follows：
1. shaft tower insulator chain model is placed horizontally in after the experimental section of wind tunnel noumenon, then being integrated with acceleration sensing
The angle of wind deflection monitoring modular of device and power supply stabilization circuit, sensor signal conditioning circuit and ZigBee radio frequency transmission circuitries etc. is installed
On ball-eye.Check whether relevant device is ready, such as：Shaft tower insulator chain model whether place rationally, wind-tunnel
Related arrange whether reasonable etc., enable insulator angle of wind deflection monitoring system in running order and determine long-range monitoring platform
The data transmitted on acceleration transducer are received by wireless network.
2. start wind tunnel noumenon power section is located at as the axle driven by frequency conversion threephase asynchronous machine for providing stable wind regime
Flow type fan, blower fan start (to change wind by the input power of regulation motor in the power section generation wind field of wind-tunnel
Speed)；As changeover portion can ensure that the stable aeroperformance of experimental section, and can be organized in stable section and contraction section air-flow
Preferable flow field, so when wind-force blows to the insulator chain on the shaft tower insulator chain model of experimental section, will produce partially
Move, form angle of wind deflection.
3., now as insulator angle of wind deflection monitoring system is in running order, the acceleration in angle of wind deflection monitoring modular is passed
The voltage signal that sensor is measured and exported can calculate angle-data through modified model angle algorithm process, the number for then gathering
Pretreatment is carried out according to through sensor signal conditioning circuit, then the network transmission formed by ZigBee self-organizings is to converging section
Data are packed and are sent to GPRS communication modules through protocol conversion by point, the coordinator of aggregation node, then are communicated by GPRS
Network is sent to long-range monitoring platform.
4., when the data of angle of wind deflection monitoring modular collection are sent to long-range monitoring platform, long-range monitoring can be stored in flat
In platform server, and data base can be set up data are managed, in this process by some abnormal data processings, with
The angle of wind deflection of the reasonable situation of Shi Baocun experiment gained, and ensure its wind speed size under the conditions of testing corresponding.
5. the input power of asynchronous motor supplied with variable frequency is changed, to change the wind field of axial fan generation so that act on bar
On tower model, the wind load of insulator chain and wire changes, and angle of wind deflection can also change.Repeatedly can survey by means of which
Corresponding insulator angle of wind deflection under the different wind speed of amount.Finally can be by the data of experiment gained and the knot got by computing formula
Fruit mutually compares, it is found that both match, so as to demonstrate the accuracy and reliability of this method.
The ultimate principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, simply explanation described in above-described embodiment and description this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (10)
1. a kind of measuring system of utilization wind tunnel experiment analog insulation substring angle of wind deflection, it is characterised in that include：Wind-tunnel, ventilation
Device, at least three shaft tower insulator chain models, angle of wind deflection monitoring modular and long-range monitoring platform；The wind-tunnel includes wind-tunnel sheet
Body, is sequentially provided with entrance, power section, changeover portion, stable section, contraction section, experimental section and diffuser on wind tunnel noumenon；The ventilation
Power section of the device installed in wind tunnel noumenon；Experimental section of the shaft tower insulator chain model installed in wind tunnel noumenon；The wind
Drift angle monitoring modular is arranged on shaft tower insulator chain model, real-time monitoring insulator chain windage yaw angular data, and by wireless biography
Defeated network is sent to long-range monitoring platform and is processed.
2. the measuring system of a kind of utilization wind tunnel experiment analog insulation substring angle of wind deflection according to claim 1, its feature
It is：The angle of wind deflection monitoring modular includes acceleration transducer, sensor signal conditioning circuit and the radio frequency for sequentially electrically connecting
Circuit, acceleration transducer carry out the data transfer for collecting to sensor signal conditioning circuit after pretreatment, by radio frequency electrical
Road sends.
3. the measuring system of a kind of utilization wind tunnel experiment analog insulation substring angle of wind deflection according to claim 2, its feature
It is：The angle of wind deflection monitoring modular is arranged on shaft tower insulator chain model bottom.
4. the measuring system of a kind of utilization wind tunnel experiment analog insulation substring angle of wind deflection according to claim 2, its feature
It is：Also include aggregation node, the aggregation node includes coordinator, wireless transport module；The coordinator be used for packing by
Radio circuit is sent to the insulator chain windage yaw angular data of aggregation node, and is sent to wireless transport module through protocol conversion,
Wireless transport module is used for for the insulator chain windage yaw angular data for receiving being sent to long-range monitoring platform by wireless-transmission network
Processed.
5. the measuring system of a kind of utilization wind tunnel experiment analog insulation substring angle of wind deflection according to claim 1, its feature
It is：The shaft tower insulator chain model includes that shaft tower, wire and insulator chain, wire are connected with shaft tower by insulator chain.
6. the measuring system of a kind of utilization wind tunnel experiment analog insulation substring angle of wind deflection according to claim 5, its feature
It is：When the quantity of shaft tower insulator chain model is 3, connected by wire between adjacent shaft tower insulator chain model, respectively
Experimental section of the shaft tower insulator chain model lateral separation installed in wind tunnel noumenon.
7. the measuring system of a kind of utilization wind tunnel experiment analog insulation substring angle of wind deflection according to claim 1, its feature
It is：The ventilation unit is the axial fan driven by frequency conversion threephase asynchronous machine.
8. a kind of measuring method of utilization wind tunnel experiment analog insulation substring angle of wind deflection, it is characterised in that comprise the following steps：
(1) shaft tower insulator chain model is placed horizontally in the experimental section of wind tunnel noumenon, while angle of wind deflection monitoring modular is installed
On shaft tower insulator chain model；
(2) start the ventilation unit generation wind field for being located at wind tunnel noumenon power section；
(3) the artificial wind in wind field is sequentially through stable wind is formed after the changeover portion of wind tunnel noumenon, stable section, contraction section, surely
The horizontal shaft tower insulator chain model that blows of fixed wind forms angle of wind deflection；
(4) the acceleration transducer measurement in angle of wind deflection monitoring modular output voltage signal, and the voltage signal for exporting is through changing
Entering type angle algorithm and obtain corresponding angle-data, then the angle-data of gained is input to sensor signal conditioning circuit is carried out
The angle information of angle of wind deflection is obtained after pretreatment；Radio circuit is by the angle information of angle of wind deflection after pretreatment by being wirelessly transferred net
Network is transmitted to long-range monitoring platform；
(5) last long-range monitoring platform is analyzed process to the angle information of the angle of wind deflection for receiving, and excludes abnormal data, from
And obtain accurate experimental result.
9. the measuring method of a kind of utilization wind tunnel experiment analog insulation substring angle of wind deflection according to claim 7, its feature
It is：In step (4), the angle information of angle of wind deflection after pretreatment is transmitted to remote by radio circuit by wireless-transmission network
Journey monitoring platform is specially：Radio circuit transmits the angle information of angle of wind deflection after pretreatment to aggregation node, in aggregation node
Coordinator the Angle Information data of angle of wind deflection is packed and is sent to wireless transport module through protocol conversion, then by wireless
Transport module is sent to long-range monitoring platform through base station.
10. the measuring method of a kind of utilization wind tunnel experiment analog insulation substring angle of wind deflection according to claim 7, its feature
It is：The wireless transport module is GPRS communication modules；The radio circuit is ZigBee radio circuits.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107036803A (en) * | 2017-06-12 | 2017-08-11 | 武汉黎赛科技有限责任公司 | The experimental rig and method of a kind of silicon rubber insulator full skirt mechanical aging |
| CN107390095A (en) * | 2017-06-29 | 2017-11-24 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of parallel connection gaps discharge monitoring device |
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| CN110567671A (en) * | 2019-10-14 | 2019-12-13 | 温州春桦秋时科技有限公司 | Wind tunnel for researching aerodynamic characteristics of power line tower |
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| CN107036803A (en) * | 2017-06-12 | 2017-08-11 | 武汉黎赛科技有限责任公司 | The experimental rig and method of a kind of silicon rubber insulator full skirt mechanical aging |
| CN107390095A (en) * | 2017-06-29 | 2017-11-24 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of parallel connection gaps discharge monitoring device |
| CN109186932A (en) * | 2018-09-29 | 2019-01-11 | 云南电网有限责任公司电力科学研究院 | A kind of big height difference tower wire body system flow tunnel testing device |
| CN109407106A (en) * | 2018-10-19 | 2019-03-01 | 海南电网有限责任公司电力科学研究院 | A kind of insulator chain windage yaw distance calculating method under different length |
| CN110567671A (en) * | 2019-10-14 | 2019-12-13 | 温州春桦秋时科技有限公司 | Wind tunnel for researching aerodynamic characteristics of power line tower |
| CN110567671B (en) * | 2019-10-14 | 2021-06-15 | 温州春桦秋时科技有限公司 | Wind tunnel for researching aerodynamic characteristics of power line tower |
| CN112393712A (en) * | 2020-11-16 | 2021-02-23 | 云南电网有限责任公司昆明供电局 | Power transmission line insulator string inclination monitoring system and method based on satellite positioning |
| CN113077692A (en) * | 2021-03-10 | 2021-07-06 | 西安交通大学 | Air transverse single tube forced convection heat transfer teaching experiment device and use method |
| CN113077692B (en) * | 2021-03-10 | 2022-07-12 | 西安交通大学 | Air transverse single tube forced convection heat transfer teaching experiment device and use method |
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