CN107860971A - The distribution electricity box aging analysis method of theoretical temperatures field stimulation - Google Patents
The distribution electricity box aging analysis method of theoretical temperatures field stimulation Download PDFInfo
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- CN107860971A CN107860971A CN201710875960.6A CN201710875960A CN107860971A CN 107860971 A CN107860971 A CN 107860971A CN 201710875960 A CN201710875960 A CN 201710875960A CN 107860971 A CN107860971 A CN 107860971A
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- temperature
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- aging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/068—Arrangements for indicating or signaling faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/25—Arrangements for indicating or signalling faults
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of distribution electricity box aging analysis method of theoretical temperatures field stimulation, gathered by wireless and passive distribution electricity box and ambient temperature, power distributing meter box foundation data and parameter information collection, measuring point temperature data store, carry out theoretical thermal losses power calculation, theorize space temperature field simulation model, pass through the contrast conting and trend analysis of measuring point temperature and theoretical temperatures field, the ageing process of distribution electricity box is analyzed, automation alarm is carried out according to result；The final purpose of the present invention is by calculating the foundation of theoretical temperatures field stimulation and the analysis of measuring point data, realize to the judgement of distribution electricity box aging in power distribution network and the analysis of unusual condition, reduce distribution electricity box artificial O＆M cost of overhaul caused by the reason such as distribution and enormous amount, the aging of distribution electricity box or unusual condition, lifting power distribution network horizontal and automatization level safe for operation are found in time.
Description
Technical field：
The present invention relates to a kind of power industry safety monitoring technology field, more particularly to a kind of distribution of theoretical temperatures field stimulation
Electricity box aging analysis method.
Background technology：
Distribution electricity box are chronically at outdoor operation, and environment is complicated, aging conditions easily occurs, once there are aging conditions, will
Electrical equipment malfunction is caused, causes unnecessary loss, it is therefore desirable to the aging conditions of distribution electricity box are detected in time.
The content of the invention：
The technical problems to be solved by the invention are：Overcome the deficiencies in the prior art, there is provided one kind passes through theoretical temperatures field stimulation
Data analysis, which is carried out, with collecting temperature judges ageing equipment trend or failure and the theoretical temperatures field for carrying out automatic alarm push
The distribution electricity box aging analysis method of simulation.
The technical scheme is that：
A kind of distribution electricity box aging analysis method of theoretical temperatures field stimulation, obtained using wireless and passive temperature acquisition detection technique
To real-time power distributing meter box temperature degrees of data, the analog result of binding isotherm space temperature field, by calculating and analyzing, judge that equipment is old
Change and its degree of aging, secondary process can be divided into theoretical thermal losses power calculation, equipment and ambient temperature information gathering, reason
By temperature field simulation, device temperature analysis four big step of output result, it is established that the specific method judged for ageing equipment, with
The automation alarm reached to the ageing equipment caused by thermal losses is sought, wherein each step is as follows：
1st, theoretical thermal losses power calculation includes step：1a, the collection of Equipment Foundations parameter information；1b, equipment theory heat waste power
Data calculate；
Its detailed process is：According to the underlying parameter of equipment, its rated voltage, rated current, resistance reactance, distribution electricity box are included
In other connection information such as item equipment specific heat capacities, calculate the theoretical heat waste power for matching somebody with somebody electricity box；
2nd, equipment and ambient temperature information gathering include step：2a, temperature sensor information collection；2b, thermometric collection
Device data storage is transmitted；2c, wireless and passive thermometric temperature fire detection system data storage 2d, wireless and passive thermometric temperature fire
Detecting system measured data pre-processes；
Its detailed process is：The wireless and passive information gathering in technology is supervised according to wireless and passive power distributing meter box temperature degree fire alarm
Mechanism.The collection of observed temperature information includes the data of the temperature information and its ambient temperature information in distribution electricity box；
3rd, theoretical temperatures field stimulation includes step：3a, power distributing meter box foundation Data Collection；3b, observed temperature data obtain；3c、
Theoretical heat waste power obtains；3d, the simulation of theoretical temperatures field spatial model；
Its detailed process is：According to the basic parameter information of distribution electricity box, mainly distribution electricity box inner space size, interior install
Standby specific heat capacity etc., the actual metrical information of binding isotherm thermal losses power computation and ambient temperature, it is established that mould
The theoretical temperatures field of plan；
4th, device temperature analysis output result includes step：4a, measuring point temperature Real time data acquisition；4b, measuring point temperature history number
According to acquisition；4c, measuring point temperature and theoretical temperatures field contrast conting；4d, the output of ageing equipment analysis result；
Its detailed process is：With the theoretical temperatures field of foundation and the device temperature information of actual acquisition, set with reference to what history gathered
The data such as standby temperature information, analyses and comparison physical device temperature change with the data difference in theoretical temperatures field and data difference
Trend, ageing equipment degree information judgement, output equipment aging result of determination are carried out by equipment thermal losses aging principle.
The beneficial effects of the invention are as follows：
1st, the present invention gets real-time power distributing meter box temperature degrees of data using wireless and passive temperature acquisition detection technique, and binding isotherm is empty
Between temperature field analog result, by calculating and analyzing, can effectively judge ageing equipment and its degree of aging, reduction is matched somebody with somebody
Ammeter box manually and O＆M cost, while risk of the reduction in terms of production safety caused by ageing equipment.
2nd, the present invention using wireless and passive temperature acquisition technology can be significantly increased information gathering the degree of accuracy and in real time
Degree, can carry out effective information with the theoretical temperatures field simulated and compare and calculate.
3rd, the present invention obtains for distribution electricity box basic parameter, and the collection of meteorological condition uses the meteorology that meteorological department provides
Information interface is called, and can accurately obtain external environment and basic reference information.
4th, the present invention is directed to the data mining of a large amount of temperature acquisition datas, external environment data, device parameter essential information
And analysis, effective ensure is provided in the research of theoretical temperature field simulation and ageing equipment analysis.
Brief description of the drawings：
Fig. 1 is the theory diagram of the distribution electricity box aging analysis method of theoretical temperatures field stimulation.
Fig. 2 is the FB(flow block) of the distribution electricity box aging analysis method of theoretical temperatures field stimulation.
Embodiment：
Embodiment：Referring to Fig. 1 and Fig. 2.
The distribution electricity box aging analysis method of theoretical temperatures field stimulation, obtained using wireless and passive temperature acquisition detection technique
To real-time power distributing meter box temperature degrees of data, the analog result of binding isotherm space temperature field, by calculating and analyzing, judge that equipment is old
Change and its degree of aging, secondary process can be divided into theoretical thermal losses power calculation, equipment and ambient temperature information gathering, reason
By temperature field simulation, device temperature analysis four big step of output result, it is established that the specific method judged for ageing equipment, with
The automation alarm reached to the ageing equipment caused by thermal losses is sought, wherein each step is as follows：
1st, theoretical thermal losses power calculation includes step：1a, the collection of Equipment Foundations parameter information；1b, equipment theory heat waste power
Data calculate；
Its detailed process is：According to the underlying parameter of equipment, its rated voltage, rated current, resistance reactance, distribution electricity box are included
In other connection information such as item equipment specific heat capacities, calculate the theoretical heat waste power for matching somebody with somebody electricity box；
Thermal losses power is one of important sources data for calculating theoretical temperature field.The calculation of thermal losses power is broadly divided into
Galvanic circle joint, connector and contact, caused by the loose contact excessive heating and dielectric aging, make moist after, it is situated between
Matter loss increase, heating power increase both.
（1）Galvanic circle joint, connector and contact, the excessive heating caused by loose contact.Its heating power：
P=I2R
Wherein R is contact resistance.
（2）Dielectric aging, after making moist, its dielectric loss increase, heating power increase.Its heating power：
P=U2ωCtgδ
Wherein C is the equivalent capacity of medium.
2nd, equipment and ambient temperature information gathering include step：2a, temperature sensor information collection；2b, thermometric
Collector data storage is transmitted；2c, wireless and passive thermometric temperature fire detection system data storage 2d, wireless and passive thermometric temperature
Fire detection system measured data pre-processes；
Its detailed process is：The wireless and passive information gathering in technology is supervised according to wireless and passive power distributing meter box temperature degree fire alarm
Mechanism.The collection of observed temperature information includes the data of the temperature information and its ambient temperature information in distribution electricity box；
3rd, theoretical temperatures field stimulation includes step：3a, power distributing meter box foundation Data Collection；3b, observed temperature data obtain；3c、
Theoretical heat waste power obtains；3d, the simulation of theoretical temperatures field spatial model；
Its detailed process is：According to the basic parameter information of distribution electricity box, mainly distribution electricity box inner space size, interior install
Standby specific heat capacity etc., the actual metrical information of binding isotherm thermal losses power computation and ambient temperature, it is established that mould
The theoretical temperatures field of plan；
The temperature field in broad sense that theoretical temperatures field represents, it refers to object（Include inside）On each point set in heat waste
It is standby（Hot source point）In the presence of a certain moment temperature section state.Can by the analysis to heat transfer process and temperature field
Know, temperature field is typically a continually changing field.
During utilizing object conducting heat, primary condition shows a kind of beginning state, is often referred to the initial temperature point of heat carrier
Cloth situation.The primary condition in temperature field just refers to the Temperature Distribution in the whole place of initial time of diabatic process, primary condition
It is rather than the state in fact of a single point for the whole temperature field of heat conduction object.This refers to transient heat conduction process, and
Stable temperature field is not related to primary condition then.In a real case, transient state temperature field can be with the time progressively close to stable state
Temperature field, but original state is then discrepant, can distinguish heat conduction state.
Calculating between the change in temperature field and primary condition has certain relation.The primary condition in temperature field in the present invention
Refer to the distribution function in the moment interior of articles temperature T of t=0, meet relational expression T=T (x, y, z, t).
4th, device temperature analysis output result includes step：4a, measuring point temperature Real time data acquisition；4b, measuring point temperature are gone through
History data acquisition；4c, measuring point temperature and theoretical temperatures field contrast conting；4d, the output of ageing equipment analysis result；
Its detailed process is：With the theoretical temperatures field of foundation and the device temperature information of actual acquisition, set with reference to what history gathered
The data such as standby temperature information, analyses and comparison physical device temperature change with the data difference in theoretical temperatures field and data difference
Trend, ageing equipment degree information judgement, output equipment aging result of determination are carried out by equipment thermal losses aging principle.
Trend analysis alignments refer to " aging temperature-time graph ageing ternperaturr-finu curve "
It can be one of which analysis theories the heat-resisting life aging of insulating polymeric material, obtain each temperature spot in ageing process
In, the dynamic curve diagram about performance change and time relationship, thus obtaining can when each temperature spot reaches specific ageing state
Can property percentage.
The formula of trend linear equation is expressed as：y=a+bx.
Wherein：A and b is constant, and x represents the value of period coefficient, and x is determined by distribution, and to make ∑ x=0.In order that ∑ x
=0。
By the analysis result to temperature trend, the Space Theory Temperature numerical in theoretical temperatures field is compared, judges distribution
Whether aging and failure electricity box equipment occur.
Discrete models are established by historical temperature gathered data, and the temperature of fixed space in theoretical temperatures field is brought into
Model carries out comparing, is carried out judging specific ageing state according to discrete results.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, it is all
It is any simple modification, equivalent change and modification made according to the technical spirit of the present invention to above example, still falls within
In the range of technical solution of the present invention.
Claims (5)
1. a kind of distribution electricity box aging analysis method of theoretical temperatures field stimulation, is obtained using wireless and passive temperature acquisition detection technique
Real-time power distributing meter box temperature degrees of data is got, the analog result of binding isotherm space temperature field, by calculating and analyzing, judges equipment
Aging and its degree of aging, it is comprised the concrete steps that：
A, the wireless and passive information gathering mechanism in technology is supervised according to wireless and passive power distributing meter box temperature degree fire alarm to survey in real time
The temperature information and its ambient temperature information in distribution electricity box are measured, gathers the basic parameter information of distribution electricity box
B, according to the underlying parameter of equipment, the theoretical heat waste power for matching somebody with somebody electricity box is calculated
C, according to the basic parameter information of distribution electricity box, the real-time measurement of binding isotherm thermal losses power and ambient temperature
Information, it is established that the theoretical temperatures field of simulation.
2.D, the theoretical temperatures field in designated space, obtain the temperature data in specific space coordinates, with reference to the reality at coordinate
When temperature data and historical temperature data, analyses and comparison real-time device temperature and the data difference and data in theoretical temperatures field
Difference variation tendency, analyzed by trend analysis and discrete data models, output equipment aging result of determination.
3. the distribution electricity box aging analysis method of theoretical temperatures field stimulation according to claim 1, it is characterized in that：It is described to match somebody with somebody
The basic parameter information of ammeter box includes power distributing meter case inner space size, built-in device specific heat capacity.
4. the distribution electricity box aging analysis method of theoretical temperatures field stimulation according to claim 1, it is characterized in that：It is described to set
Standby underlying parameter includes other connection item equipment specific heat capacity letters in its rated voltage, rated current, resistance reactance, distribution electricity box
Breath.
5. the distribution electricity box aging analysis method of theoretical temperatures field stimulation according to claim 1, it is characterized in that：It is described to match somebody with somebody
The step of temperature information and its ambient temperature information in ammeter box is：A, temperature sensor information gathers；B, thermometric
Collector data storage is transmitted；C, wireless and passive thermometric temperature fire detection system data storage；D, wireless and passive thermometric temperature
Fire detection system measured data pre-processes.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579286A (en) * | 2018-06-11 | 2019-12-17 | 株式会社村田制作所 | Temperature measuring device of electric energy meter |
| CN112622664A (en) * | 2020-12-23 | 2021-04-09 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | System and method for detecting temperature in charging pile |
| CN113848078A (en) * | 2021-08-25 | 2021-12-28 | 祥博传热科技股份有限公司 | Detection method for judging failure of heat pipe in heat pipe radiator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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