CN106441626A - Power equipment aging analysis system and analysis method based on passive wireless temperature measurement - Google Patents
Power equipment aging analysis system and analysis method based on passive wireless temperature measurement Download PDFInfo
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- CN106441626A CN106441626A CN201610597213.6A CN201610597213A CN106441626A CN 106441626 A CN106441626 A CN 106441626A CN 201610597213 A CN201610597213 A CN 201610597213A CN 106441626 A CN106441626 A CN 106441626A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
- G01K11/26—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies
- G01K11/265—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies using surface acoustic wave [SAW]
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- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
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Abstract
A power equipment aging analysis system and an analysis method based on passive wireless temperature measurement are disclosed. The system comprises multiple passive wireless surface acoustic wave sensors which are installed at temperature collection points of power equipment respectively and are used for collecting temperature signals. After connected to collectors, the passive wireless surface acoustic wave sensors are connected via a gateway to a collected data receiving server and a data real-time analysis server, thus forming an analysis system. The analysis system calculates the temperature historical data of each measurement point and the change trend of difference between the temperature at each measurement point and the ambient temperature according to temperature information collected and stored by the passive wireless surface acoustic wave sensors, and analyzes and judges whether the equipment ages and whether the equipment ages to a degree for scraping according to the change trend of difference between the temperature at each measurement point and the ambient temperature within a year. The analysis method comprises the steps as follows: (a) getting real-time accurate temperature information; and (b) performing equipment aging analysis and judgment: determining the ranges of three thermal defects according to the range of temperature difference, and determining the degree of aging of equipment according to the ranges of three thermal defects.
Description
Technical field
The present invention relates to a kind of power equipment aging analysis system based on passive and wireless thermometric and device, belong to electric power row
Industry testing techniques of equipment field.
Background technology
In recent years, with the swift and violent growth of electric load, some power supply unit long-times are in fully loaded or are close at full capacity
Operation, once power supply unit or line failure, the electric current in the electric current of its trouble point and associate conductive loop all drastically will increase
Plus, device junction ratio is more difficult to bear such overrunning load with prismatic wire, either to equipment, or equipment is connect
The harm of head, all will be very big.When being short-circuited, electric current in circuit increase for normal when several times even tens times, and produce
Raw heat is again and square being directly proportional of electric current so that temperature steeply rises, and substantially exceeds allowed band, threat electrical equipment
Normal operation.The operative practice of electrical equipment is proved, after the temperature of conductor and equipment exceedes certain limit, will be accelerated
Aging, the reduction dielectric strength of insulant, reduction of service life, significantly decreases metallic conductor mechanical strength, dislikes further
Change the connection status of conduction contact part, cause the quick further of device junction temperature to raise, its consequence is:The lighter starts pine
Dynamic, it is gradually evolved into conductor joint heating vicious cycle；Severe one may then occur joint fusing, explosion accident.Electrical operation is safeguarded
Personnel carry out the current check of enclosed type electrical equipment by windowpane, intuitively cannot be observed, and operation monitoring is also more next
More difficult, the heat condition of particularly device junction operationally cannot be monitored, and infrared measurement of temperature the most frequently used at present cannot
Carry out, cannot find that heating is abnormal in time.So, how accurately the temperature of electrical equipment is closed in, rapidly, safe measure operation
Degree is very urgent problems.
Passive Wireless SAW Sensors are a kind of novel sensors for adapting to market and technology trends, once going out
Now just accreditation is received with characteristics such as its miniature, passive and wireless, high accuracy, can make up existing for above-mentioned conventional temperature sensor
Various defects, applied in ring main unit thermometric management system well.
Content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present, and it is reasonable to provide a kind of structure composition, using can
By safety, short-circuit, overheated, loose contact to power equipment, overload, three-phase imbalance, electric leakage etc. carry out reliable monitoring, and
Shi Faxian, and data analysiss can be carried out to real time temperature, know ageing equipment degree in advance, reply may be by temperature mistake in advance
The electrical equipment fault that height causes, to the offer good basis facility guarantee of power system reliability service based on passive and wireless thermometric
Power equipment aging analysis system and method.
The purpose of the present invention by following technical solution completing, a kind of power equipment based on passive and wireless thermometric
Aging analysis system, it includes multiple passive and wireless installed in the enterprising trip temperature signals collecting of each temperature acquisition point of power equipment
Surface acoustic wave sensor, described Passive Wireless SAW Sensors are connected to collection through gateway after connecting harvester
Data collection server data real-time analysis server component analysises system, the analysis system is according to passive and wireless sound table
After the temperature information that wave sensor is gathered and preserved, temperature history and measurement point and the environment of each measurement point are counted
The variation tendency of the temperature difference, according to measurement point in the range of the year and circumstance of temperature difference variation tendency, analyzes judgement equipment and whether there is
Whether catabiosis and degree of aging reach beyond economic repair degree.
A kind of be analyzed method using the power equipment aging analysis system based on passive and wireless thermometric, the analysis
Method is：
a）Obtain accurate temperature information immediately：The temperature letter of temperature acquisition point is known using Passive Wireless SAW Sensors
Breath data, and the screening of data is carried out after temperature information data are reported, exclude and be disturbed data and other abnormal datas, guarantee
Analysis process is set up on reliable data basis；
b）Ageing equipment analyzes judgment basis：Three kinds of thermal defect scopes are formulated according to temperature range, the aging of equipment is judged with this
Degree.
As preferred：Three kinds of described thermal defect scopes and judgement degree of aging are：
（1）General thermal defect, limit of temperature rise is at 10 ~ 20 DEG C；Before push away the history temperature rise data of a year, if temperature rise is progressively to rise
Height, judgement is that equipment starts catabiosis, and increasingly serious, and this kind of situation should arouse attention；If not progressively
Raise, then check whether and cause as load current is exceeded, and strengthen tracking, prevent the intensification of defect level；
（2）Seriousness thermal defect, measurement point limit of temperature rise is at 20 ~ 40 DEG C, or actual temperature is at 60 ~ 80 DEG C；Before push away 1 year
History temperature rise data, if temperature rise is to be stepped up, judgement is that equipment starts catabiosis, and increasingly serious, prepares
More exchange device；Otherwise it is judged to that sudden electric current affects, this kind of situation fault location has resulted in serious hot injury, structure is run to equipment
Become serious threat, strictly monitor, conditions permit will have a power failure process；
（3）Dangerous thermal defect, measurement point temperature rise is more than 40 DEG C, or maximum temperature exceedes being somebody's turn to do for world GB763-90 defined
Material threshold limit value；If before push away history temperature rise in a year to find that this measurement point temperature rise is continued for high, reach peak value steady
Fixed, judge that equipment life terminates, it is necessary to change；Otherwise it is judged to that sudden electric current affects；This kind of defect is likely to result in prominent at any time
The property sent out has a power failure or short-circuit explosion accident, should immediately exit from operation, carry out thorough overhaul.
Power equipment aging analysis program of the present invention based on passive and wireless thermometric, using modularized design setting system
Meter task is divided into two functional modules, and temperature information is accessed and ageing equipment situation analysis module in real time.Adopt accurately receiving
After the temperature information that collection point is reported, all data are carried out with comprehensive analysis, judge that equipment is according to real time temperature and limit of temperature rise
No have catabiosis and whether ageing equipment degree reaches Rejection standard.
The present invention has structure composition rationally, using reliable and secure, short-circuit, the overheated, loose contact to power equipment, mistake
Load, three-phase imbalance, electric leakage etc. carry out reliable monitoring, find in time, and can carry out data analysiss to real time temperature, in advance
Know ageing equipment degree, reply may be by the too high electrical equipment fault for causing of temperature, to power system reliability service in advance
The features such as offer good basis facility is ensured.
Description of the drawings
Fig. 1 is that the system of the present invention constitutes block diagram.
Fig. 2 is aging analysis block diagram of the present invention.
Specific embodiment
Below in conjunction with rear accompanying drawing, the present invention will be described in detail：Shown in Fig. 1, of the present invention a kind of based on passive
The power equipment aging analysis system of wireless temperature measurement, it includes multiple installed in the enterprising trip temperature of each temperature acquisition point of power equipment
The Passive Wireless SAW Sensors 1 of signals collecting, described Passive Wireless SAW Sensors 1 are by connecting harvester
After 2, gathered data the reception server data real-time analysis server 4 component analysises system, the analysis is connected to through gateway 3
System counts the temperature of each measurement point after the temperature information for gathering and preserving according to Passive Wireless SAW Sensors 1
Degree historical data and measurement point and the variation tendency of circumstance of temperature difference, are become with circumstance of temperature difference change according to measurement point in the range of the year
Gesture, analysis judges whether equipment reaches beyond economic repair degree with the presence or absence of catabiosis and degree of aging.
A kind of power equipment aging analysis system side of being analyzed using based on passive and wireless thermometric of the present invention
Method, the analysis method is：
a）Obtain accurate temperature information immediately：The temperature letter of temperature acquisition point is known using Passive Wireless SAW Sensors
Breath data, and the screening of data is carried out after temperature information data are reported, exclude and be disturbed data and other abnormal datas, guarantee
Analysis process is set up on reliable data basis；
b）Ageing equipment analyzes judgment basis：Three kinds of thermal defect scopes are formulated according to temperature range, the aging of equipment is judged with this
Degree.
Shown in Fig. 2, also include above：Statistical measurement point and circumstance of temperature difference 5, analysis temperature difference tendency 6, and on analysis foundation
Make respectively：Equipment is normal 7, ageing equipment 8 and equipment eliminate 9 three kinds of aging judgements.
Three kinds of thermal defect scopes of the present invention and judgement degree of aging are：
（1）General thermal defect, limit of temperature rise is at 10 ~ 20 DEG C；Before push away the history temperature rise data of a year, if temperature rise is progressively to rise
Height, judgement is that equipment starts catabiosis, and increasingly serious, and this kind of situation should arouse attention；If not progressively
Raise, then check whether and cause as load current is exceeded, and strengthen tracking, prevent the intensification of defect level；
（2）Seriousness thermal defect, measurement point limit of temperature rise is at 20 ~ 40 DEG C, or actual temperature is at 60 ~ 80 DEG C；Before push away 1 year
History temperature rise data, if temperature rise is to be stepped up, judgement is that equipment starts catabiosis, and increasingly serious, prepares
More exchange device；Otherwise it is judged to that sudden electric current affects, this kind of situation fault location has resulted in serious hot injury, structure is run to equipment
Become serious threat, strictly monitor, conditions permit will have a power failure process；
（3）Dangerous thermal defect, measurement point temperature rise is more than 40 DEG C, or maximum temperature exceedes being somebody's turn to do for world GB763-90 defined
Material threshold limit value；If before push away history temperature rise in a year to find that this measurement point temperature rise is continued for high, reach peak value steady
Fixed, judge that equipment life terminates, it is necessary to change；Otherwise it is judged to that sudden electric current affects；This kind of defect is likely to result in prominent at any time
The property sent out has a power failure or short-circuit explosion accident, should immediately exit from operation, carry out thorough overhaul.
Embodiment：Analysis method of the present invention is comprised the following steps to be carried out：
Step one：Passive and wireless thermometric hardware device is installed, passive and wireless thermometric hardware device is installed, it is ensured that key node is entered
Row effective temperature is monitored.
Step 2：Deployment server and environment configurations, the real-time Analysis Service of deployment gathered data the reception server data
Device.
Step 3：Alarm threshold value and analysis node temperature is set, setting interface is opened, different measuring point high temperature threshold value is entered
Row manually sets.
Step 4：Automatic spring prediction reason after generation high temperature early warning, when measurement point temperature exceedes threshold value, Automatic Program
Report to the police and the reason for being likely to occur high temperataure phenomena is analyzed, so that maintainer refers to.
Step 5：Periodically active analysis, exclude potential safety hazard, and server periodically actively enters trip temperature to each point for measuring temperature and divides
Analysis, analysis measurement point temperature rise tendency, when finding to have measurement point temperature rise Continued, remind user in time, will be potential dangerous
Find in advance and make to notify at once.
Claims (3)
1. a kind of power equipment aging analysis system based on passive and wireless thermometric, it includes multiple installed in each temperature of power equipment
The Passive Wireless SAW Sensors of the enterprising trip temperature signals collecting in degree collection point, it is characterised in that described passive and wireless sound
Surface wave sensor is connected to the real-time Analysis Service of gathered data the reception server data through gateway after connecting harvester
Device component analysises system, the analysis system is in the temperature information for being gathered according to Passive Wireless SAW Sensors and preserve
Afterwards, the variation tendency of the temperature history of each measurement point and measurement point and circumstance of temperature difference is counted, according to year scope
Interior measurement point and circumstance of temperature difference variation tendency, it is necessary that analysis judges whether equipment is reached with the presence or absence of catabiosis and degree of aging
The degree that scraps.
2. the power equipment aging analysis system side of being analyzed described in a kind of utilization claim 1 based on passive and wireless thermometric
Method, it is characterised in that the analysis method is：
a）Obtain accurate temperature information immediately：The temperature letter of temperature acquisition point is known using Passive Wireless SAW Sensors
Breath data, and the screening of data is carried out after temperature information data are reported, exclude and be disturbed data and other abnormal datas, guarantee
Analysis process is set up on reliable data basis；
b）Ageing equipment analyzes judgment basis：Three kinds of thermal defect scopes are formulated according to temperature range, the aging of equipment is judged with this
Degree.
3. the power equipment aging analysis method based on passive and wireless thermometric according to claim 2, it is characterised in that institute
The three kinds of thermal defect scopes that states and judgement degree of aging are：
（1）General thermal defect, limit of temperature rise is at 10 ~ 20 DEG C；Before push away the history temperature rise data of a year, if temperature rise is progressively to rise
Height, judgement is that equipment starts catabiosis, and increasingly serious, and this kind of situation should arouse attention；If not progressively
Raise, then check whether and cause as load current is exceeded, and strengthen tracking, prevent the intensification of defect level；
（2）Seriousness thermal defect, measurement point limit of temperature rise is at 20 ~ 40 DEG C, or actual temperature is at 60 ~ 80 DEG C；Before push away 1 year
History temperature rise data, if temperature rise is to be stepped up, judgement is that equipment starts catabiosis, and increasingly serious, prepares
More exchange device；Otherwise it is judged to that sudden electric current affects, this kind of situation fault location has resulted in serious hot injury, structure is run to equipment
Become serious threat, strictly monitor, conditions permit will have a power failure process；
（3）Dangerous thermal defect, measurement point temperature rise is more than 40 DEG C, or maximum temperature exceedes being somebody's turn to do for world GB763-90 defined
Material threshold limit value；If before push away history temperature rise in a year to find that this measurement point temperature rise is continued for high, reach peak value steady
Fixed, judge that equipment life terminates, it is necessary to change；Otherwise it is judged to that sudden electric current affects；This kind of defect is likely to result in prominent at any time
The property sent out has a power failure or short-circuit explosion accident, should immediately exit from operation, carry out thorough overhaul.
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| CN201610597213.6A CN106441626A (en) | 2016-07-27 | 2016-07-27 | Power equipment aging analysis system and analysis method based on passive wireless temperature measurement |
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| CN201610597213.6A CN106441626A (en) | 2016-07-27 | 2016-07-27 | Power equipment aging analysis system and analysis method based on passive wireless temperature measurement |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109541357A (en) * | 2018-12-24 | 2019-03-29 | 煤科集团沈阳研究院有限公司 | Rate of temperature change differential technique electrical equipment ageing management system and detection method |
| CN109556759A (en) * | 2018-11-14 | 2019-04-02 | 广东电网有限责任公司惠州供电局 | A kind of experimental method for probing into switchgear the Temperature Rising Law |
| CN109643115A (en) * | 2017-07-18 | 2019-04-16 | 株式会社东芝 | Data processing equipment, data processing method and program |
| CN111257380A (en) * | 2020-01-16 | 2020-06-09 | 武汉理工大学 | Passive wireless temperature crack binary sensor array based on microstrip antenna |
| CN111412990A (en) * | 2019-01-04 | 2020-07-14 | 苏州苏彭志盛信息科技有限公司 | Power equipment temperature monitoring system and method |
| CN112268627A (en) * | 2020-10-16 | 2021-01-26 | 沈阳英特电气科技有限公司 | Temperature rise fault monitoring system |
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| CN111257380B (en) * | 2020-01-16 | 2021-09-10 | 武汉理工大学 | Passive wireless temperature crack binary sensor array based on microstrip antenna |
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Application publication date: 20170222 |
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