CN110455988A - Sensor array calculation method and system, monitor and monitoring method based on gas content in transformer insulation oil - Google Patents
Sensor array calculation method and system, monitor and monitoring method based on gas content in transformer insulation oil Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0006—Calibrating gas analysers
- G01N33/0008—Details concerning storage of calibration data, e.g. in EEPROM
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1281—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of liquids or gases
Abstract
A kind of sensor array calculation method and system based on gas content in transformer insulation oil, monitor and monitoring method, by being detected in known standard standard gas, calculate r1, r2, r3, t1, t2, t3, k1, k2, k3, Nu0, Nt0, Nk0, by r1, r2, r3, t1, t2, t3, k1, k2, k3 derives R1, R2, R3, T1, T2, T3, K1, K2, K3, by R1, R2, R3, T1, T2, T3, K1, K2, K3 obtains Qu, Qt, Qk, using three sensors to the difference of three classes gas reaction, the actual concentrations of a variety of different gases are distinguished from measurement data.
Description
Technical field
The present invention relates to a kind of sensor array calculation method and system, monitor and monitoring method, especially a kind of base
The sensor array calculation method and system, monitor and monitoring method of gas content in transformer insulation oil.
Background technique
Three kinds of hydrogen, carbon monoxide, hydro carbons gas-insulated oil dissolved gas contents are the important evidences of Fault Diagnosis Method of Power Transformer,
It can choose three electrochemical sensor progress gas detections for detecting hydrogen, carbon monoxide, hydro carbons respectively, each sensor difference
Main test is served to three gases, since there are each sensors of cross jamming can generate response to three classes gas, because
The data that this sensor measurement arrives are the composite value of three kinds of gas concentrations, and it is true that the data detected at this time cannot function as gas concentration
Real value,
Even if not having three classes gas in mixed gas, three sensors can also detect the value being not zero, these three values are referred to as " base
Line ", caused by it is interference as other gases except three classes gas.
Summary of the invention
Object of the invention is a kind of sensor array calculation method based on gas content in transformer insulation oil,
Object of the invention is a kind of sensor array system based on gas content in transformer insulation oil,
Object of the invention is a kind of monitor based on gas content in transformer insulation oil,
Object of the invention is a kind of monitoring method based on gas content in transformer insulation oil.
In order to overcome the technical drawbacks described above, the object of the present invention is to provide one kind based on gas content in transformer insulation oil
Sensor array calculation method and system, monitor and monitoring method, therefore using three sensors to three classes gas reaction
Difference, the actual concentrations of a variety of different gases are distinguished from measurement data.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of sensor array calculation method based on gas content in transformer insulation oil, the steps include:
Step 100: by Nu, Nt, the Nk detected in known standard standard gas, calculate r1, r2, r3, t1, t2, t3,
K1, k2, k3, Nu0, Nt0, Nk0,
Step 200: R1, R2, R3, T1, T2, T3, K1, K2, K3 are derived by r1, r2, r3, t1, t2, t3, k1, k2, k3,
Step 300: Qu, Qt, Qk are obtained by R1, R2, R3, T1, T2, T3, K1, K2, K3,
Gas refers in transformer insulation oil: hydrogen, carbon monoxide, hydrocarbon gas,
Nu: carbon monoxide reading, the Nk of hydrogen reading, the Nt: monitor measurement of monitor measurement: the hydro carbons of monitor measurement is read
Number, Nu0: hydrogen baseline, Nt0: carbon monoxide baseline, Nk0: hydro carbons baseline, Qu: hydrogen content, Qt: carbon monoxide content, Qk:
Hydrocarbon content, r1: influence coefficient, r2: carbon monoxide influence coefficient, r3 to hydrogen gas sensor of the hydrogen to hydrogen gas sensor:
Influence coefficient, t2: carbon monoxide of influence coefficient, t1: hydrogen of the hydrocarbon gas to hydrogen gas sensor to carbon monoxide transducer
Influence coefficient, the k1 of influence coefficient, t3: hydrocarbon gas to carbon monoxide transducer to carbon monoxide transducer: hydrogen is to hydrocarbon
Influence coefficient, k3 of influence coefficient, the k2: carbon monoxide of class sensor to hydrocarbon sensor: hydrocarbon gas is to hydrocarbon sensor
Influence coefficient, NU: hydrogen read only i.e. NU=Nu- Nu0, NT: carbon monoxide read only be NT=Nt- Nt0, NK: hydro carbons
Net reading is NK=Nk- Nk0, R1: influence coefficient, R2: carbon monoxide of the hydrogen reading to hydrogen content are read to hydrogen content
Influence coefficient, R3: hydro carbons reads influence coefficient, T1: hydrogen to hydrogen content and reads influence system to carbon monoxide content
Number, T2: influence coefficient, T3: hydro carbons of the carbon monoxide reading to carbon monoxide content read the influence system to carbon monoxide content
Number, K1: influence coefficient, K2: carbon monoxide of the hydrogen reading to hydrocarbon content read influence coefficient, K3: hydrocarbon to hydrocarbon content
Class reads the influence coefficient to hydrocarbon content.
Due to devising above-mentioned steps, using three sensors to the difference of three classes gas reaction, the area from measurement data
Separate the actual concentrations of a variety of different gases.
The present invention devises, and step 100 includes specifically content:
Nu=r1Qu+r2Qt+r3Qk+Nu0 1.1
Nt=t1Qu+t2Qt+t3Qk+Nt0 1.2
Nk=k1Qu+k2Qt+k3Qk+Nk0 1.3
r1Qu+r2Qt+r3Qk =NU 1.4
t1Qu+t2Qt+t3Qk=NT 1.5
k1Qu+k2Qt+k3Qk=NK 1.6
The present invention devises, and step 200 includes specifically content:
R1=(t2k3-t3k2)/δ
R2=(r3k2-r2k3)/ δ
R3=(r2t3-r3t2)/ δ
T1=(t3k1-t1k3)/ δ
T2=(r1k3-r3k1)/ δ
T3=(r3t1-r1t3)/ δ
K1=(t1k2-t2k1)/ δ
K2=(r2k1-r1k2)/ δ
K3=(r1t2-r2t1)/ δ
In formula, δ=r1t2k3+r2t3k1+r3t1k2-r1t3k2-r2t1k3-r3t2k1,
The present invention devises, and step 300 includes specifically content:
Qu=R1NU+R2NT+R3NK 1.7
Qt=T1NU+T2NT+T3NK 1.8
Qk=K1NU+K2NT+K3NK 1.9
The present invention devises, and the steps include:
One, three baselines Nu0, Nt0, Nk0 are initialized as 0,
Two, using hydrogen baseline Nu0 as constant, detection is obtained respectively in hydrogen standard gas, carbon monoxide standard gas and hydro carbons standard gas
Hydrogen read substitution formula 1.1, obtain ternary system of linear equations:
NUu=r1QUu+r2QUt+r3QUk+Nu0 2.1
NTu=r1QTu+r2QTt+r3QTk+Nu0 2.2
NKu=r1QKu+r2QKt+r3QKk+Nu0 2.3
In formula, NUu, NTu, NKu: hydrogen standard gas, carbon monoxide standard gas, the hydrogen reading detected in hydro carbons standard gas respectively
QUu, QUt, QUk: hydrogen, carbon monoxide, hydrocarbon content in hydrogen standard gas have been demarcated,
QTu, QTt, QTk: hydrogen, carbon monoxide, hydrocarbon content in carbon monoxide standard gas have been demarcated, QKu, QKt, QKk: hydrocarbon
Hydrogen, carbon monoxide, hydrocarbon content in class standard gas have been demarcated,
It solves above three formulas and obtains three coefficients r1, r2 and r3,
Three, it using carbon monoxide baseline Nt0 as constant, is detected respectively in hydrogen standard gas, carbon monoxide standard gas and hydro carbons standard gas
Obtained carbon monoxide reading substitution formula 1.2, obtains ternary system of linear equations:
NUt=t1QUu+t2QUt+t3QUk+Nt0 2.4
NTt=t1QTu+t2QTt+t3QTk+Nt0 2.5
NKt=t1QKu+t2QKt+t3QKk+Nt0 2.6
In formula, NUt, NTt, NKt: hydrogen standard gas, carbon monoxide standard gas, the carbon monoxide reading detected in hydro carbons standard gas respectively,
It solves above three formulas and obtains three coefficients t1, t2 and t3,
Four, using hydro carbons baseline Nk0 as constant, detection is obtained respectively in hydrogen standard gas, carbon monoxide standard gas and hydro carbons standard gas
Hydro carbons read substitution formula 1.3, obtain ternary system of linear equations:
NUk=k1QUu+k2QUt+k3QUk+Nk0 2.7
NTk=k1QTu+k2QTt+k3QTk+Nk0 2.8
NKk=k1QKu+k2QKt+k3QKk+Nk0 2.9
In formula, NUk, NTk, NKk: hydrogen standard gas, carbon monoxide standard gas, the hydro carbons reading detected in hydro carbons standard gas respectively
It solves above three formulas and obtains three coefficient ks 1, k2 and k3,
Five, by three kinds of gas contents of r1, r2, r3, t1, t2, t3, k1, k2, k3, Nu0, Nt0, Nk0 for finding out substitute into formula 1.4,
Formula 1.5 and formula 1.6, obtain:
r1QZu+r2QZt+r3QZk =NU 2.4
t1QZu+t2QZt+t3QZk=NT 2.5
k1QZu+k2QZt+k3QZk=NK 2.6
In formula, QZu, QZt, QZk: hydrogen, carbon monoxide, hydrocarbon content (known) in zero standard gas,
It can calculate that the theoretic hydrogen of zero standard gas is read only, carbon monoxide is read only, hydro carbons is read only by above three formula,
Six, by zero standard gas hydrogen reading, carbon monoxide reading, hydro carbons reading be individually subtracted hydrogen read only, one aoxidize
Carbon is read only, hydro carbons is read only, obtains hydrogen baseline, carbon monoxide baseline, hydro carbons baseline,
Seven, regard hydrogen baseline, carbon monoxide baseline, hydro carbons baseline that step 6 is calculated as constant, return step two, weight
It is new calculate r1, r2, r3, t1, t2, t3, k1, k2, k3, repeatedly after iteration five times, three gas baselines and r1, r2, r3,
T1, t2, t3, k1, k2, k3 numerical value are basicly stable, there is no need to increase the number of iterations,
Eight, by formula 1.4, formula 1.5 and formula 1.6, available formula 1.7, formula 1.8 and formula 1.9, thus by r1, r2, r3, t1,
T2, t3, k1, k2, k3 are converted to R1, R2, R3, T1, T2, T3, K1, K2, K3:
R1=(t2k3-t3k2)/δ 2.7
R2=(r3k2-r2k3)/ δ 2.8
R3=(r2t3-r3t2)/ δ 2.9
T1=(t3k1-t1k3)/ δ 2.10
T2=(r1k3-r3k1)/ δ 2.11
T3=(r3t1-r1t3)/ δ 2.12
K1=(t1k2-t2k1)/ δ 2.13
K2=(r2k1-r1k2)/ δ 2.14
K3=(r1t2-r2t1)/ δ 2.15
In formula, δ=r1t2k3+r2t3k1+r3t1k2-r1t3k2-r2t1k3-r3t2k1 2.16
Nine, mixing standard gas detection three obtained gas readings are subtracted into just three obtained gas baseline, obtains three gas
The net reading of body recycles just calculated R1, R2, R3, T1, T2, T3, K1, K2, K3, passes through formula 1.7, formula 1.8 and formula
1.9 calculate mixing standard gas in three kinds of gas content, then with mixing standard gas known to three kinds of gas contents compare, such as
In allowed limits, then monitor calibration coefficient is effective for fruit error, terminates staking-out work, if error is more than the model allowed
It encloses, then demarcates and fail, re-start calibration.
The present invention devises, a kind of sensor array system based on gas content in transformer insulation oil, include with
Lower content:
By being detected in known standard standard gas, calculating r1, r2, r3, t1, t2, t3, k1, k2, k3, Nu0, Nt0, Nk0
Unit 10 is established,
Derive that R1, R2, R3, T1, T2, T3, K1, K2, K3 establish unit 20 by r1, r2, r3, t1, t2, t3, k1, k2, k3,
Qu, Qt, Qk are obtained by R1, R2, R3, T1, T2, T3, K1, K2, K3 and establish unit 30.
The present invention devises, and a kind of monitor based on gas content in transformer insulation oil, includes the following contents: In
The sensor array system based on gas content in transformer insulation oil is stored in monitor,
The present invention devises, and the sensor array system based on gas content in transformer insulation oil is based on transformer according to above-mentioned
The sensor array calculation method of gases dissolved in insulation oil content obtains,
The present invention devises, and for monitor in calibration, the content of three kinds of gas is it is known that measure three gases in each standard standard gas
After reading, then calculate monitor coefficient and baseline.When calibration, there are five standard standard gas is available, their three classes gas
Bulk concentration value is to be respectively as follows: it is known that only concentration value is different
The hydrogen content of hydrogen standard gas is higher, and carbon monoxide and hydrocarbon content are lower,
The carbon monoxide content of carbon monoxide standard gas is higher, and hydrogen and hydrocarbon content are lower,
The hydrocarbon content of hydro carbons standard gas is higher, and hydrogen and carbon monoxide content are lower,
The hydrogen, carbon monoxide and hydrocarbon content for mixing standard gas are higher,
The hydrogen of zero standard gas, carbon monoxide and hydrocarbon content are lower, proximity sensor baseline value.
The present invention devises, and a kind of monitoring method based on gas content in transformer insulation oil, includes the following contents:
It is controlled in CPU using the monitor based on gas content in transformer insulation oil.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of process based on the sensor array calculation method of gas content in transformer insulation oil of the invention
Figure,
Fig. 2 is a kind of structural schematic diagram based on the monitor of gas content in transformer insulation oil of the invention.
Specific embodiment
According to guidelines for examination, such as " having ", "comprising" and " comprising " term used in the present invention should understand that
For the presence or addition for not allotting one or more of the other element or combinations thereof.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Below with reference to embodiment, the present invention is further described, following embodiment is intended to illustrate invention rather than to this
Invention further limits.
A kind of sensor array calculation method based on gas content in transformer insulation oil, first implementation of the invention
One of example, the steps include:
Step 100: by Nu, Nt, the Nk detected in known standard standard gas, calculate r1, r2, r3, t1, t2, t3,
K1, k2, k3, Nu0, Nt0, Nk0,
Step 200: R1, R2, R3, T1, T2, T3, K1, K2, K3 are derived by r1, r2, r3, t1, t2, t3, k1, k2, k3,
Step 300: Qu, Qt, Qk are obtained by R1, R2, R3, T1, T2, T3, K1, K2, K3,
Gas refers in transformer insulation oil: hydrogen, carbon monoxide, hydrocarbon gas,
Nu: carbon monoxide reading, the Nk of hydrogen reading, the Nt: monitor measurement of monitor measurement: the hydro carbons of monitor measurement is read
Number, Nu0: hydrogen baseline, Nt0: carbon monoxide baseline, Nk0: hydro carbons baseline, Qu: hydrogen content, Qt: carbon monoxide content, Qk:
Hydrocarbon content, r1: influence coefficient, r2: carbon monoxide influence coefficient, r3 to hydrogen gas sensor of the hydrogen to hydrogen gas sensor:
Influence coefficient, t2: carbon monoxide of influence coefficient, t1: hydrogen of the hydrocarbon gas to hydrogen gas sensor to carbon monoxide transducer
Influence coefficient, the k1 of influence coefficient, t3: hydrocarbon gas to carbon monoxide transducer to carbon monoxide transducer: hydrogen is to hydrocarbon
Influence coefficient, k3 of influence coefficient, the k2: carbon monoxide of class sensor to hydrocarbon sensor: hydrocarbon gas is to hydrocarbon sensor
Influence coefficient, NU: hydrogen read only i.e. NU=Nu- Nu0, NT: carbon monoxide read only be NT=Nt- Nt0, NK: hydro carbons
Net reading is NK=Nk- Nk0, R1: influence coefficient, R2: carbon monoxide of the hydrogen reading to hydrogen content are read to hydrogen content
Influence coefficient, R3: hydro carbons reads influence coefficient, T1: hydrogen to hydrogen content and reads influence system to carbon monoxide content
Number, T2: influence coefficient, T3: hydro carbons of the carbon monoxide reading to carbon monoxide content read the influence system to carbon monoxide content
Number, K1: influence coefficient, K2: carbon monoxide of the hydrogen reading to hydrocarbon content read influence coefficient, K3: hydrocarbon to hydrocarbon content
Class reads the influence coefficient to hydrocarbon content.
In the present embodiment, step 100 includes specifically content:
Nu=r1Qu+r2Qt+r3Qk+Nu0 1.1
Nt=t1Qu+t2Qt+t3Qk+Nt0 1.2
Nk=k1Qu+k2Qt+k3Qk+Nk0 1.3
r1Qu+r2Qt+r3Qk =NU 1.4
t1Qu+t2Qt+t3Qk=NT 1.5
k1Qu+k2Qt+k3Qk=NK 1.6
In the present embodiment, step 200 includes specifically content:
R1=(t2k3-t3k2)/δ
R2=(r3k2-r2k3)/ δ
R3=(r2t3-r3t2)/ δ
T1=(t3k1-t1k3)/ δ
T2=(r1k3-r3k1)/ δ
T3=(r3t1-r1t3)/ δ
K1=(t1k2-t2k1)/ δ
K2=(r2k1-r1k2)/ δ
K3=(r1t2-r2t1)/ δ
In formula, δ=r1t2k3+r2t3k1+r3t1k2-r1t3k2-r2t1k3-r3t2k1,
In the present embodiment, step 300 includes specifically content:
Qu=R1NU+R2NT+R3NK 1.7
Qt=T1NU+T2NT+T3NK 1.8
Qk=K1NU+K2NT+K3NK 1.9
Monitor after the content of three kinds of gas is it is known that measure three gas readings in each standard standard gas, then is calculated in calibration
Monitor coefficient and baseline out.When calibration, there are five standard standard gas is available, their three classes gas concentration value is
Know, only concentration value is different, is respectively as follows:
The hydrogen content of hydrogen standard gas is higher, and carbon monoxide and hydrocarbon content are lower.
The carbon monoxide content of carbon monoxide standard gas is higher, and hydrogen and hydrocarbon content are lower.
The hydrocarbon content of hydro carbons standard gas is higher, and hydrogen and carbon monoxide content are lower.
The hydrogen, carbon monoxide and hydrocarbon content for mixing standard gas are higher.
The hydrogen of zero standard gas, carbon monoxide and hydrocarbon content are lower, proximity sensor baseline value
The two of one embodiment of the invention, the steps include:
One, three baselines Nu0, Nt0, Nk0 are initialized as 0,
Two, using hydrogen baseline Nu0 as constant, detection is obtained respectively in hydrogen standard gas, carbon monoxide standard gas and hydro carbons standard gas
Hydrogen read substitution formula 1.1, obtain ternary system of linear equations:
NUu=r1QUu+r2QUt+r3QUk+Nu0 2.1
NTu=r1QTu+r2QTt+r3QTk+Nu0 2.2
NKu=r1QKu+r2QKt+r3QKk+Nu0 2.3
In formula, NUu, NTu, NKu: hydrogen standard gas, carbon monoxide standard gas, the hydrogen reading detected in hydro carbons standard gas respectively
QUu, QUt, QUk: hydrogen, carbon monoxide, hydrocarbon content in hydrogen standard gas have been demarcated,
QTu, QTt, QTk: hydrogen, carbon monoxide, hydrocarbon content in carbon monoxide standard gas have been demarcated, QKu, QKt, QKk: hydrocarbon
Hydrogen, carbon monoxide, hydrocarbon content in class standard gas have been demarcated,
It solves above three formulas and obtains three coefficients r1, r2 and r3,
Three, it using carbon monoxide baseline Nt0 as constant, is detected respectively in hydrogen standard gas, carbon monoxide standard gas and hydro carbons standard gas
Obtained carbon monoxide reading substitution formula 1.2, obtains ternary system of linear equations:
NUt=t1QUu+t2QUt+t3QUk+Nt0 2.4
NTt=t1QTu+t2QTt+t3QTk+Nt0 2.5
NKt=t1QKu+t2QKt+t3QKk+Nt0 2.6
In formula, NUt, NTt, NKt: hydrogen standard gas, carbon monoxide standard gas, the carbon monoxide reading detected in hydro carbons standard gas respectively.
It solves above three formulas and obtains three coefficients t1, t2 and t3,
Four, using hydro carbons baseline Nk0 as constant, detection is obtained respectively in hydrogen standard gas, carbon monoxide standard gas and hydro carbons standard gas
Hydro carbons read substitution formula 1.3, obtain ternary system of linear equations:
NUk=k1QUu+k2QUt+k3QUk+Nk0 2.7
NTk=k1QTu+k2QTt+k3QTk+Nk0 2.8
NKk=k1QKu+k2QKt+k3QKk+Nk0 2.9
In formula, NUk, NTk, NKk: hydrogen standard gas, carbon monoxide standard gas, the hydro carbons reading detected in hydro carbons standard gas respectively
It solves above three formulas and obtains three coefficient ks 1, k2 and k3,
Five, by three kinds of gas contents of r1, r2, r3, t1, t2, t3, k1, k2, k3, Nu0, Nt0, Nk0 for finding out substitute into formula 1.4,
Formula 1.5 and formula 1.6, obtain:
r1QZu+r2QZt+r3QZk =NU 2.4
t1QZu+t2QZt+t3QZk=NT 2.5
k1QZu+k2QZt+k3QZk=NK 2.6
In formula, QZu, QZt, QZk: hydrogen, carbon monoxide, hydrocarbon content (known) in zero standard gas.
It can calculate that the theoretic hydrogen of zero standard gas is read only, carbon monoxide is read only, hydro carbons is read only by above three formula
Number,
Six, by zero standard gas hydrogen reading, carbon monoxide reading, hydro carbons reading be individually subtracted hydrogen read only, one aoxidize
Carbon is read only, hydro carbons is read only, obtains hydrogen baseline, carbon monoxide baseline, hydro carbons baseline,
Seven, regard hydrogen baseline, carbon monoxide baseline, hydro carbons baseline that step 6 is calculated as constant, return step two, weight
It is new calculate r1, r2, r3, t1, t2, t3, k1, k2, k3, repeatedly after iteration five times, three gas baselines and r1, r2, r3,
T1, t2, t3, k1, k2, k3 numerical value are basicly stable, there is no need to increase the number of iterations,
Eight, by formula 1.4, formula 1.5 and formula 1.6, available formula 1.7, formula 1.8 and formula 1.9, thus by r1, r2, r3, t1,
T2, t3, k1, k2, k3 are converted to R1, R2, R3, T1, T2, T3, K1, K2, K3:
R1=(t2k3-t3k2)/δ 2.7
R2=(r3k2-r2k3)/ δ 2.8
R3=(r2t3-r3t2)/ δ 2.9
T1=(t3k1-t1k3)/ δ 2.10
T2=(r1k3-r3k1)/ δ 2.11
T3=(r3t1-r1t3)/ δ 2.12
K1=(t1k2-t2k1)/ δ 2.13
K2=(r2k1-r1k2)/ δ 2.14
K3=(r1t2-r2t1)/ δ 2.15
In formula, δ=r1t2k3+r2t3k1+r3t1k2-r1t3k2-r2t1k3-r3t2k1 2.16
Nine, mixing standard gas detection three obtained gas readings are subtracted into just three obtained gas baseline, obtains three gas
The net reading of body recycles just calculated R1, R2, R3, T1, T2, T3, K1, K2, K3, passes through formula 1.7, formula 1.8 and formula
1.9 calculate mixing standard gas in three kinds of gas content, then with mixing standard gas known to three kinds of gas contents compare, such as
In allowed limits, then monitor calibration coefficient is effective for fruit error, terminates staking-out work, if error is more than the model allowed
It encloses, then demarcates and fail, re-start calibration.
Nu, Nt, Nk: hydrogen reading, carbon monoxide reading, the hydro carbons reading of monitor measurement
2. Nu0, Nt0, Nk0: hydrogen baseline, carbon monoxide baseline, hydro carbons baseline.
3. Qu, Qt, Qk: hydrogen content, carbon monoxide content, hydrocarbon content.
4. r1, r2, r3: the influence coefficient of hydrogen, carbon monoxide, hydrocarbon gas to hydrogen gas sensor
5. t1, t2, t3: the influence coefficient of hydrogen, carbon monoxide, hydrocarbon gas to carbon monoxide transducer
6. k1, k2, k3: the influence coefficient of hydrogen, carbon monoxide, hydrocarbon gas to hydrocarbon sensor
NU=Nu- Nu0: after deducting hydrogen baseline, hydrogen is read only.
2. NT=Nt- Nt0: after deducting carbon monoxide baseline, carbon monoxide is read only.
3. NK=Nk- Nk0: after deducting hydro carbons baseline, hydro carbons is read only.
R1, R2, R3: hydrogen reading, carbon monoxide reading, hydro carbons read the influence coefficient to hydrogen content.T1, T2, T3:
Hydrogen reading, carbon monoxide reading, hydro carbons read the influence coefficient to carbon monoxide content.K1, K2, K3: hydrogen reading, an oxygen
Change the influence coefficient of carbon reading, hydro carbons reading to hydrocarbon content.
A kind of sensor array system based on gas content in transformer insulation oil, includes the following contents:
By being detected in known standard standard gas, r1, r2, r3, t1, t2, t3, k1, k2, k3, Nu0, Nt0, Nk0 are calculated
Unit 10 is established,
Derive that R1, R2, R3, T1, T2, T3, K1, K2, K3 establish unit 20 by r1, r2, r3, t1, t2, t3, k1, k2, k3,
Qu, Qt, Qk are obtained by R1, R2, R3, T1, T2, T3, K1, K2, K3 and establish unit 30.
A kind of monitor based on gas content in transformer insulation oil, includes the following contents: storing in monitor
There is the sensor array system based on gas content in transformer insulation oil,
In the present embodiment, the sensor array system based on gas content in transformer insulation oil is based on transformer according to above-mentioned
The sensor array calculation method of gases dissolved in insulation oil content obtains,
Step 100: by being detected in known standard standard gas, calculate r1, r2, r3, t1, t2, t3, k1, k2, k3,
Nu0, Nt0, Nk0,
Step 200: R1, R2, R3, T1, T2, T3, K1, K2, K3 are derived by r1, r2, r3, t1, t2, t3, k1, k2, k3,
Step 300: Qu, Qt, Qk are obtained by R1, R2, R3, T1, T2, T3, K1, K2, K3,
A kind of monitoring method based on gas content in transformer insulation oil, includes the following contents:
It is controlled in CPU using the monitor based on gas content in transformer insulation oil.
Above-described embodiment is based on the sensor array of the gas content provided by the present invention in transformer insulation oil
A kind of way of realization of method and system, monitor and monitoring method is calculated, according to the present invention other deformations of provided scheme,
Increase and perhaps reduce composition therein or step or the present invention is used for other technical fields close with the present invention,
It belongs to the scope of protection of the present invention.
Claims (9)
1. a kind of sensor array calculation method based on gas content in transformer insulation oil, it is characterized in that: the steps include:
Step 100: by being detected in known standard standard gas, calculate r1, r2, r3, t1, t2, t3, k1, k2, k3,
Nu0, Nt0, Nk0,
Step 200: R1, R2, R3, T1, T2, T3, K1, K2, K3 are derived by r1, r2, r3, t1, t2, t3, k1, k2, k3,
Step 300: Qu, Qt, Qk are obtained by R1, R2, R3, T1, T2, T3, K1, K2, K3,
Gas refers in transformer insulation oil: hydrogen, carbon monoxide, hydrocarbon gas,
Nu: carbon monoxide reading, the Nk of hydrogen reading, the Nt: monitor measurement of monitor measurement: the hydro carbons of monitor measurement is read
Number, Nu0: hydrogen baseline, Nt0: carbon monoxide baseline, Nk0: hydro carbons baseline, Qu: hydrogen content, Qt: carbon monoxide content, Qk:
Hydrocarbon content, r1: influence coefficient, r2: carbon monoxide influence coefficient, r3 to hydrogen gas sensor of the hydrogen to hydrogen gas sensor:
Influence coefficient, t2: carbon monoxide of influence coefficient, t1: hydrogen of the hydrocarbon gas to hydrogen gas sensor to carbon monoxide transducer
Influence coefficient, the k1 of influence coefficient, t3: hydrocarbon gas to carbon monoxide transducer to carbon monoxide transducer: hydrogen is to hydrocarbon
Influence coefficient, k3 of influence coefficient, the k2: carbon monoxide of class sensor to hydrocarbon sensor: hydrocarbon gas is to hydrocarbon sensor
Influence coefficient, NU: hydrogen read only i.e. NU=Nu- Nu0, NT: carbon monoxide read only be NT=Nt- Nt0, NK: hydro carbons
Net reading is NK=Nk- Nk0, R1: influence coefficient, R2: carbon monoxide of the hydrogen reading to hydrogen content are read to hydrogen content
Influence coefficient, R3: hydro carbons reads influence coefficient, T1: hydrogen to hydrogen content and reads influence system to carbon monoxide content
Number, T2: influence coefficient, T3: hydro carbons of the carbon monoxide reading to carbon monoxide content read the influence system to carbon monoxide content
Number, K1: influence coefficient, K2: carbon monoxide of the hydrogen reading to hydrocarbon content read influence coefficient, K3: hydrocarbon to hydrocarbon content
Class reads the influence coefficient to hydrocarbon content.
2. the sensor array calculation method according to claim 1 based on gas content in transformer insulation oil, special
Sign is: step 100 includes specifically content:
Nu=r1Qu+r2Qt+r3Qk+Nu0 1.1
Nt=t1Qu+t2Qt+t3Qk+Nt0 1.2
Nk=k1Qu+k2Qt+k3Qk+Nk0 1.3
r1Qu+r2Qt+r3Qk =NU 1.4
t1Qu+t2Qt+t3Qk=NT 1.5
k1Qu+k2Qt+k3Qk=NK 1.6 。
3. the sensor array calculation method according to claim 1 based on gas content in transformer insulation oil, special
Sign is: step 200 includes specifically content:
R1=(t2k3-t3k2)/δ
R2=(r3k2-r2k3)/ δ
R3=(r2t3-r3t2)/ δ
T1=(t3k1-t1k3)/ δ
T2=(r1k3-r3k1)/ δ
T3=(r3t1-r1t3)/ δ
K1=(t1k2-t2k1)/ δ
K2=(r2k1-r1k2)/ δ
K3=(r1t2-r2t1)/ δ
In formula, δ=r1t2k3+r2t3k1+r3t1k2-r1t3k2-r2t1k3-r3t2k1.
4. the sensor array calculation method according to claim 1 based on gas content in transformer insulation oil, special
Sign is: step 300 includes specifically content:
Qu=R1NU+R2NT+R3NK 1.7
Qt=T1NU+T2NT+T3NK 1.8
Qk=K1NU+K2NT+K3NK 1.9。
5. the sensor array calculation method according to claim 1 based on gas content in transformer insulation oil, special
Sign is: the steps include:
One, three baselines Nu0, Nt0, Nk0 are initialized as 0,
Two, using hydrogen baseline Nu0 as constant, detection is obtained respectively in hydrogen standard gas, carbon monoxide standard gas and hydro carbons standard gas
Hydrogen read substitution formula 1.1, obtain ternary system of linear equations:
NUu=r1QUu+r2QUt+r3QUk+Nu0 2.1
NTu=r1QTu+r2QTt+r3QTk+Nu0 2.2
NKu=r1QKu+r2QKt+r3QKk+Nu0 2.3
In formula, NUu, NTu, NKu: hydrogen standard gas, carbon monoxide standard gas, the hydrogen reading detected in hydro carbons standard gas respectively
QUu, QUt, QUk: hydrogen, carbon monoxide, hydrocarbon content in hydrogen standard gas have been demarcated,
QTu, QTt, QTk: hydrogen, carbon monoxide, hydrocarbon content in carbon monoxide standard gas have been demarcated, QKu, QKt, QKk: hydrocarbon
Hydrogen, carbon monoxide, hydrocarbon content in class standard gas have been demarcated,
It solves above three formulas and obtains three coefficients r1, r2 and r3,
Three, it using carbon monoxide baseline Nt0 as constant, is detected respectively in hydrogen standard gas, carbon monoxide standard gas and hydro carbons standard gas
Obtained carbon monoxide reading substitution formula 1.2, obtains ternary system of linear equations:
NUt=t1QUu+t2QUt+t3QUk+Nt0 2.4
NTt=t1QTu+t2QTt+t3QTk+Nt0 2.5
NKt=t1QKu+t2QKt+t3QKk+Nt0 2.6
In formula, NUt, NTt, NKt: hydrogen standard gas, carbon monoxide standard gas, the carbon monoxide reading detected in hydro carbons standard gas respectively,
It solves above three formulas and obtains three coefficients t1, t2 and t3,
Four, using hydro carbons baseline Nk0 as constant, detection is obtained respectively in hydrogen standard gas, carbon monoxide standard gas and hydro carbons standard gas
Hydro carbons read substitution formula 1.3, obtain ternary system of linear equations:
NUk=k1QUu+k2QUt+k3QUk+Nk0 2.7
NTk=k1QTu+k2QTt+k3QTk+Nk0 2.8
NKk=k1QKu+k2QKt+k3QKk+Nk0 2.9
In formula, NUk, NTk, NKk: hydrogen standard gas, carbon monoxide standard gas, the hydro carbons reading detected in hydro carbons standard gas respectively
It solves above three formulas and obtains three coefficient ks 1, k2 and k3,
Five, by three kinds of gas contents of r1, r2, r3, t1, t2, t3, k1, k2, k3, Nu0, Nt0, Nk0 for finding out substitute into formula 1.4,
Formula 1.5 and formula 1.6, obtain:
r1QZu+r2QZt+r3QZk =NU 2.4
t1QZu+t2QZt+t3QZk=NT 2.5
k1QZu+k2QZt+k3QZk=NK 2.6
In formula, QZu, QZt, QZk: hydrogen, carbon monoxide, hydrocarbon content (known) in zero standard gas,
It can calculate that the theoretic hydrogen of zero standard gas is read only, carbon monoxide is read only, hydro carbons is read only by above three formula,
Six, by zero standard gas hydrogen reading, carbon monoxide reading, hydro carbons reading be individually subtracted hydrogen read only, one aoxidize
Carbon is read only, hydro carbons is read only, obtains hydrogen baseline, carbon monoxide baseline, hydro carbons baseline,
Seven, regard hydrogen baseline, carbon monoxide baseline, hydro carbons baseline that step 6 is calculated as constant, return step two, weight
It is new calculate r1, r2, r3, t1, t2, t3, k1, k2, k3, repeatedly after iteration five times, three gas baselines and r1, r2, r3,
T1, t2, t3, k1, k2, k3 numerical value are basicly stable, there is no need to increase the number of iterations,
Eight, by formula 1.4, formula 1.5 and formula 1.6, available formula 1.7, formula 1.8 and formula 1.9, thus by r1, r2, r3, t1,
T2, t3, k1, k2, k3 are converted to R1, R2, R3, T1, T2, T3, K1, K2, K3:
R1=(t2k3-t3k2)/δ 2.7
R2=(r3k2-r2k3)/ δ 2.8
R3=(r2t3-r3t2)/ δ 2.9
T1=(t3k1-t1k3)/ δ 2.10
T2=(r1k3-r3k1)/ δ 2.11
T3=(r3t1-r1t3)/ δ 2.12
K1=(t1k2-t2k1)/ δ 2.13
K2=(r2k1-r1k2)/ δ 2.14
K3=(r1t2-r2t1)/ δ 2.15
In formula, δ=r1t2k3+r2t3k1+r3t1k2-r1t3k2-r2t1k3-r3t2k1 2.16
Nine, mixing standard gas detection three obtained gas readings are subtracted into just three obtained gas baseline, obtains three gas
The net reading of body recycles just calculated R1, R2, R3, T1, T2, T3, K1, K2, K3, passes through formula 1.7, formula 1.8 and formula
1.9 calculate mixing standard gas in three kinds of gas content, then with mixing standard gas known to three kinds of gas contents compare, such as
In allowed limits, then monitor calibration coefficient is effective for fruit error, terminates staking-out work, if error is more than the model allowed
It encloses, then demarcates and fail, re-start calibration.
6. a kind of sensor array system based on gas content in transformer insulation oil, it is characterized in that: including in following
Hold:
By being detected in known standard standard gas, calculating r1, r2, r3, t1, t2, t3, k1, k2, k3, Nu0, Nt0, Nk0
Unit 10 is established,
Derive that R1, R2, R3, T1, T2, T3, K1, K2, K3 establish unit 20 by r1, r2, r3, t1, t2, t3, k1, k2, k3,
Qu, Qt, Qk are obtained by R1, R2, R3, T1, T2, T3, K1, K2, K3 and establish unit 30.
7. a kind of monitor based on gas content in transformer insulation oil, it is characterized in that: including the following contents: in monitor
In store the sensor array system based on gas content in transformer insulation oil,
Sensor array system based on gas content in transformer insulation oil is according to above-mentioned based on gas in transformer insulation oil
The sensor array calculation method of content obtains.
8. the monitor according to claim 7 based on gas content in transformer insulation oil, it is characterized in that:
Monitor after the content of three kinds of gas is it is known that measure three gas readings in each standard standard gas, then is calculated in calibration
Monitor coefficient and baseline out,
When calibration, there are five standard standard gas is available, their three classes gas concentration value is it is known that only concentration value is each
It is not identical, it is respectively as follows:
The hydrogen content of hydrogen standard gas is higher, and carbon monoxide and hydrocarbon content are lower,
The carbon monoxide content of carbon monoxide standard gas is higher, and hydrogen and hydrocarbon content are lower,
The hydrocarbon content of hydro carbons standard gas is higher, and hydrogen and carbon monoxide content are lower,
The hydrogen, carbon monoxide and hydrocarbon content for mixing standard gas are higher,
The hydrogen of zero standard gas, carbon monoxide and hydrocarbon content are lower, proximity sensor baseline value.
9. a kind of monitoring method based on gas content in transformer insulation oil, it is characterized in that: including the following contents:
It is controlled in CPU using the monitor based on gas content in transformer insulation oil using claim 6.
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