CN104296863A - Power transmission line vibration monitoring device - Google Patents
Power transmission line vibration monitoring device Download PDFInfo
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- CN104296863A CN104296863A CN201410611385.5A CN201410611385A CN104296863A CN 104296863 A CN104296863 A CN 104296863A CN 201410611385 A CN201410611385 A CN 201410611385A CN 104296863 A CN104296863 A CN 104296863A
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- transmission line
- main control
- control computer
- vibration
- power transmission
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Abstract
The invention relates to a power transmission line vibration state monitoring device, in particular to a power transmission line vibration monitoring device. The problem that no mature equipment or devices exist for monitoring power transmission line vibration conditions at present is solved. The power transmission line vibration monitoring device is composed of a main control computer, a vibration measurement auxiliary machine, an inclination angle measurement auxiliary machine, a wind speed measurement auxiliary machine and a PC in a monitoring center, wherein the vibration measurement auxiliary machine transmits power transmission line vibration frequency signals to the main control computer, the inclination angle measurement auxiliary machine transmits signals of inclination angles at the two ends of a power transmission line to the main control computer, the wind speed measurement auxiliary machine transmits local wind speed signals to the main control computer, and the PC receives the corresponding signals sent by the main control computer and processes the received corresponding signals under the support of the corresponding software. According to the power transmission line vibration monitoring device, line vibration frequency and amplitude detection can be achieved, information collection, information transmission and information processing and analysis are integrated, and the power transmission line vibration conditions are comprehensively monitored.
Description
Technical field
The present invention relates to transmission line of electricity Vibration Condition Monitoring device, be specially transmission line of electricity vibration monitoring device.
Background technology
In China economy increase fast, today of energy growing tension, the security of transmission line of electricity more and more comes into one's own.Transmission line of electricity is the pith of network system, and under lowered in field environment, the impact being easily subject to the disaster such as high wind, heavy rain causes various accident.In recent years, the various accident of transmission line of electricity frequently occurs, tired by the shake circuit that causes of wind, thus causes breakage of circuit stock, has a strong impact on the normal operation of electrical network, causes huge economic loss simultaneously.The vibration state (involving vibrations frequency and Oscillation Amplitude) of monitoring transmission line of electricity, to ensureing that the safe and stable operation of electrical network is significant.At present, also ripe equipment or device for monitoring transmission line of electricity vibration state is lacked.
Summary of the invention
The present invention solves the problem lacking at present ripe equipment or device for monitoring transmission line of electricity vibration state, provides a kind of transmission line of electricity vibration monitoring device.
The present invention adopts following technical scheme to realize: transmission line of electricity vibration monitoring device, by main control computer, the corresponding signal sent to the vibration survey slave of main control computer transmission transmission line of electricity vibration frequency signal, the measurement of dip angle slave transmitting transmission line of electricity two ends dip angle signal to main control computer, the measuring wind speed slave transmitting local wind velocity signal to main control computer and reception main control computer is also formed the PC of the monitoring center that the corresponding signal received processes under corresponding software support; Vibration survey slave comprises cabinet, comprises STC90C516RD first single-chip microcomputer in cabinet, and the input end of the first single-chip microcomputer is connected with the vibration transducer for gathering transmission line of electricity vibration, and the output terminal of the first single-chip microcomputer is connected with CC2530zigbee transmitter module; Measurement of dip angle slave comprises cabinet, STC90C516RD second singlechip is comprised in cabinet, the input end of second singlechip connects SST810 dynamic inclination sensor a, b that two are individually fixed in tested transmission line of electricity two ends, and the output terminal of second singlechip connects nRF905 radiofrequency emitting module; Measuring wind speed slave comprises cabinet, and comprise STC90C516RD the 3rd single-chip microcomputer in cabinet, the input end of the 3rd single-chip microcomputer is connected with air velocity transducer, and the output terminal of the 3rd single-chip microcomputer is connected with CC2530zigbee transmitter module; Main control computer comprises the ARM process chip that model is S3C2440, and the input end of process chip is connected with
nRF905receiver Module and CC2530zigbee receiver module, the output terminal of ARM process chip is connected with the GPRS transmitter module that model is SIM900A; The PC of monitoring center is provided with GPRS receiver module.
During the work of vibration survey slave, its vibration transducer exports high level when not vibrating always, will output low level when there being vibration, now can produce a negative edge, therefore the output port of vibration transducer is received on the pin having T0 timer/counter or T1 timer/counter of single-chip microcomputer, when there being negative edge to input, the pin of T0 timer/counter or T1 timer/counter can make counter register add 1, such counter just stores the vibration number N of circuit, as long as recycling timer the time be decided to be per second read start-stop counter register value N and counter register is reset simultaneously, so just have recorded per second the vibrated times N of circuit, the i.e. vibration frequency of circuit, be set to f
n(HZ).The vibration frequency recorded is transferred to main control computer by its zigbee transmitter module by vibration survey slave, and main control computer is transferred to the PC of Surveillance center again by its GPRS transmitter module after receiving.
During the work of measurement of dip angle slave, two obliquity sensor a, b being individually fixed in tested transmission line of electricity (section) two ends, measure horizontal sextant angle (angle of wire and the horizontal direction) θ of this tested transmission line of electricity two ends wire respectively
1, θ
2, and the numerical value recorded is transferred to main control computer by its single-chip microcomputer and radiofrequency emitting module, main control computer is transferred to the PC of Surveillance center again by its GPRS transmitter module after receiving.
During the work of measuring wind speed slave, the local wind velocity signal of air velocity transducer Real-time Collection, and be transferred to main control computer by its single-chip microcomputer and zigbee transmitter module, main control computer is transferred to the PC of Surveillance center again by its GPRS transmitter module after receiving.
The PC of Surveillance center, under the support of corresponding software, processes the data-signal (vibration frequency, inclination angle and wind speed) received, obtains synthesis oscillation frequency and the Oscillation Amplitude of monitored transmission line of electricity.Software involved by the PC of Surveillance center is that those skilled in the art easily realize:
As shown in Figure 2, in order to realize the detection to line vibration amplitude, SST810 dynamic inclination sensor measurement is utilized to go out the angle of circuit, because the circuit between two shaft towers is all draw very tight, so inclination angle is all very little, obliquity sensor is all installed in circuit two ends, supposes to be respectively a, b, and the angle that a records is θ
1, the angle that b records is θ
2if the line length between two shaft towers is the distance of L and two shaft towers is M:
d
1 =L/2*
d
2 =L/2*
d =（d
1 + d
2）
e
1=M/2*
e
2=M/2*
e =（e
1 + e
2）
By above 6 calculating, final that circuit amplitude is h=(d+ e).
Because wind acts on wire, the aeolian vibration of wire produces that " toll bar whirlpool " cause.As shown in Figure 3, after horizontal wind speed acts on wire, air flow swirl can be produced at the leeward side of wire, i.e. so-called " toll bar whirlpool ".When wind speed changes within the specific limits, wire leeward side whirlpool alternatively up and down makes its up-down vibration will to a kind of power acted on alternatively up and down of wire.
f
s= S
(HZ)
In formula: f
sfor Si Tuoluoha frequency, be exactly whirlpool to the vibrative frequency of wire, and when this frequency f
swith the natural frequency f of circuit
ocircuit will be made time closely to produce resonance, and the frequency of circuit is f
o; V---wind speed (m/s); The diameter (m) of D---aerial condutor; S---Si Tuoluoha number, S=0.185 ~ 0.2, China generally adopts 0.2.The wind speed V of wind speed sensor measurement, the diameter of aerial condutor brings above formula into.In order to improve measurement accuracy rate, work as f
swith the natural frequency f of circuit
otime closely, calculating circuit synthesis oscillation frequency is f=(f
n+ f
o)/2
.
Device of the present invention can realize the detection of line vibration frequency and amplitude, integrates information acquisition, information transmission, information processing and analyzes, and more comprehensively monitors transmission line of electricity vibration state, significantly to improve the operational efficiency of transmission line of electricity.Can to the health status of transmission line of electricity grasp more comprehensive, thus improve security, the high efficiency of power supply.
Accompanying drawing explanation
Fig. 1 is transmission line of electricity schematic diagram;
Fig. 2 is transmission line of electricity monitoring principle schematic diagram;
Fig. 3 is the toll bar whirlpool schematic diagram that wind blows over wire generation;
Fig. 4 is the structural representation of vibration survey slave;
Fig. 5 is the structural representation of measurement of dip angle slave;
Fig. 6 is the structural representation of measuring wind speed slave;
Fig. 7 is the structural representation of main control computer.
Embodiment
Transmission line of electricity vibration monitoring device, by main control computer, the corresponding signal sent to the vibration survey slave of main control computer transmission transmission line of electricity vibration frequency signal, the measurement of dip angle slave transmitting transmission line of electricity two ends dip angle signal to main control computer, the measuring wind speed slave transmitting local wind velocity signal to main control computer and reception main control computer is also formed the PC of the monitoring center that the corresponding signal received processes under corresponding software support; Vibration survey slave comprises cabinet, comprises STC90C516RD first single-chip microcomputer in cabinet, and the input end of the first single-chip microcomputer is connected with the vibration transducer for gathering transmission line of electricity vibration, and the output terminal of the first single-chip microcomputer is connected with CC2530zigbee transmitter module; Measurement of dip angle slave comprises cabinet, STC90C516RD second singlechip is comprised in cabinet, the input end of second singlechip connects SST810 dynamic inclination sensor a, b that two are individually fixed in tested transmission line of electricity two ends, and the output terminal of second singlechip connects nRF905 radiofrequency emitting module; Measuring wind speed slave comprises cabinet, and comprise STC90C516RD the 3rd single-chip microcomputer in cabinet, the input end of the 3rd single-chip microcomputer is connected with air velocity transducer, and the output terminal of the 3rd single-chip microcomputer is connected with CC2530zigbee transmitter module; Main control computer comprises the ARM process chip that model is S3C2440, and the input end of process chip is connected with
nRF905receiver Module and CC2530zigbee receiver module, the output terminal of ARM process chip is connected with the GPRS transmitter module that model is SIM900A; The PC of monitoring center is provided with GPRS receiver module.
Software involved by the PC of Surveillance center realizes as follows: as shown in Figure 2, utilizes two SST810 dynamic inclination sensor measurements to go out the inclination angle theta at circuit two ends
1, θ
2if the line length between two shaft towers is the distance of L and two shaft towers is M:
d
1 =L/2*
d
2 =L/2*
d =（d
1 + d
2）
e
1=M/2*
e
2=M/2*
e =（e
1 + e
2）
By above 6 calculating, final that circuit amplitude is h=(d+ e).
Because wind acts on wire, the aeolian vibration of wire produces that " toll bar whirlpool " cause.As shown in Figure 3, after horizontal wind speed acts on wire, air flow swirl can be produced at the leeward side of wire, i.e. so-called " toll bar whirlpool ".When wind speed changes within the specific limits, wire leeward side whirlpool alternatively up and down makes its up-down vibration will to a kind of power acted on alternatively up and down of wire.
f
s= S
(HZ)
In formula: f
sfor Si Tuoluoha frequency, be exactly whirlpool to the vibrative frequency of wire, and as this frequently f
swith the natural frequency f of circuit
ocircuit will be made time closely to produce resonance, and the resonance frequency of circuit is f
o; V---wind speed (m/s); The diameter (m) of D---aerial condutor; S---Si Tuoluoha number, S=0.185 ~ 0.2, China generally adopts 0.2.The wind speed V of wind speed sensor measurement, the diameter of aerial condutor brings above formula into, obtains f
s.In order to improve measurement accuracy rate, work as f
swith the natural frequency f of circuit
otime closely, calculating circuit synthesis oscillation frequency is f=(f
n+ f
o)/2
.
Claims (1)
1. a transmission line of electricity vibration monitoring device, it is characterized in that, by main control computer, the corresponding signal sent to the vibration survey slave of main control computer transmission transmission line of electricity vibration frequency signal, the measurement of dip angle slave transmitting transmission line of electricity two ends dip angle signal to main control computer, the measuring wind speed slave transmitting local wind velocity signal to main control computer and reception main control computer is also formed the PC of the monitoring center that the corresponding signal received processes under corresponding software support; Vibration survey slave comprises cabinet, comprises STC90C516RD first single-chip microcomputer in cabinet, and the input end of the first single-chip microcomputer is connected with the vibration transducer for gathering transmission line of electricity vibration, and the output terminal of the first single-chip microcomputer is connected with CC2530zigbee transmitter module; Measurement of dip angle slave comprises cabinet, STC90C516RD second singlechip is comprised in cabinet, the input end of second singlechip connects two SST810 dynamic inclination sensors being individually fixed in tested transmission line of electricity two ends, and (a, b), the output terminal of second singlechip connects nRF905 radiofrequency emitting module; Measuring wind speed slave comprises cabinet, and comprise STC90C516RD the 3rd single-chip microcomputer in cabinet, the input end of the 3rd single-chip microcomputer is connected with air velocity transducer, and the output terminal of the 3rd single-chip microcomputer is connected with CC2530zigbee transmitter module; Main control computer comprises the ARM process chip that model is S3C2440, and the input end of process chip is connected with
nRF905receiver Module and CC2530zigbee receiver module, the output terminal of ARM process chip is connected with the GPRS transmitter module that model is SIM900A; The PC of monitoring center is provided with GPRS receiver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611385.5A CN104296863A (en) | 2014-11-04 | 2014-11-04 | Power transmission line vibration monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611385.5A CN104296863A (en) | 2014-11-04 | 2014-11-04 | Power transmission line vibration monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN104296863A true CN104296863A (en) | 2015-01-21 |
Family
ID=52316693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410611385.5A Pending CN104296863A (en) | 2014-11-04 | 2014-11-04 | Power transmission line vibration monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104296863A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597093A (en) * | 2016-11-28 | 2017-04-26 | 深圳供电局有限公司 | Method and system for identifying vibration spectrum information transmitted among all spans of power transmission line |
| CN110160495A (en) * | 2019-06-11 | 2019-08-23 | 广东沅朋网络科技有限公司 | Shaft tower tilts monitoring and pre-alarming method and device |
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| CN101470014A (en) * | 2008-06-20 | 2009-07-01 | 袁德海 | Integrated on-line monitoring system and method for power transmission line |
| CN101571413A (en) * | 2009-06-17 | 2009-11-04 | 西安工程大学 | Transmission line galloping on-line monitoring system based on acceleration sensor |
| CN201812372U (en) * | 2010-09-29 | 2011-04-27 | 西安工程大学 | Breeze vibration online monitoring system for power transmission lines |
| CN103398741A (en) * | 2013-07-31 | 2013-11-20 | 成都电业局双流供电局 | Wireless transmission-based power transmission line on-line monitoring system |
| CN103575335A (en) * | 2013-11-11 | 2014-02-12 | 东北农业大学 | Transmission tower on-line monitoring system |
| KR20140055101A (en) * | 2012-10-30 | 2014-05-09 | 한전케이디엔주식회사 | Monitoring apparatus and manegement system of power transmission line using load cell |
-
2014
- 2014-11-04 CN CN201410611385.5A patent/CN104296863A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470014A (en) * | 2008-06-20 | 2009-07-01 | 袁德海 | Integrated on-line monitoring system and method for power transmission line |
| CN101571413A (en) * | 2009-06-17 | 2009-11-04 | 西安工程大学 | Transmission line galloping on-line monitoring system based on acceleration sensor |
| CN201812372U (en) * | 2010-09-29 | 2011-04-27 | 西安工程大学 | Breeze vibration online monitoring system for power transmission lines |
| KR20140055101A (en) * | 2012-10-30 | 2014-05-09 | 한전케이디엔주식회사 | Monitoring apparatus and manegement system of power transmission line using load cell |
| CN103398741A (en) * | 2013-07-31 | 2013-11-20 | 成都电业局双流供电局 | Wireless transmission-based power transmission line on-line monitoring system |
| CN103575335A (en) * | 2013-11-11 | 2014-02-12 | 东北农业大学 | Transmission tower on-line monitoring system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597093A (en) * | 2016-11-28 | 2017-04-26 | 深圳供电局有限公司 | Method and system for identifying vibration spectrum information transmitted among all spans of power transmission line |
| CN106597093B (en) * | 2016-11-28 | 2018-11-13 | 深圳供电局有限公司 | Method and system for identifying vibration spectrum information transmitted among all spans of power transmission line |
| CN110160495A (en) * | 2019-06-11 | 2019-08-23 | 广东沅朋网络科技有限公司 | Shaft tower tilts monitoring and pre-alarming method and device |
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Application publication date: 20150121 |