CN110007262A - A kind of method, computer installation and computer readable storage medium detecting the practical no-load voltage ratio value of high-tension current inductor - Google Patents
A kind of method, computer installation and computer readable storage medium detecting the practical no-load voltage ratio value of high-tension current inductor Download PDFInfo
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- CN110007262A CN110007262A CN201910328237.5A CN201910328237A CN110007262A CN 110007262 A CN110007262 A CN 110007262A CN 201910328237 A CN201910328237 A CN 201910328237A CN 110007262 A CN110007262 A CN 110007262A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Abstract
The present invention provides a kind of method, computer installation and computer readable storage mediums for detecting the practical no-load voltage ratio value of high-tension current inductor.This method includes the current signal for obtaining high-tension current inductor primary side, acquires the current signal of high-tension current inductor secondary side, calculates the practical no-load voltage ratio value of high-tension current inductor.The present invention also provides the computer installations and computer readable storage medium of realizing the above method.The present invention has the characteristics that accurately to detect the practical no-load voltage ratio value of high-tension current inductor.
Description
Technical field
The present invention relates to electric energy metering device detection field, specifically a kind of practical no-load voltage ratio value of detection high-tension current inductor
Method, computer installation and computer readable storage medium.
Background technique
Power industry usually passes through electric energy metering device and carries out calculating the electric energy that user makes, to calculate the electricity of user
Take, general electric energy metering device includes electric energy meter, high voltage/low voltage current transformer, high voltage/low voltage voltage transformer, especially
Be be arranged in during high tension voltage is to customer power supply the electric energy meter of high voltage side of transformer by high-tension current inductor and
The voltage and electric current of high voltage potential transformer acquisition high voltage side of transformer calculate the electric energy provided the user with, still, by
In the standard no-load voltage ratio marked in the practical no-load voltage ratio value of high-tension current inductor during the work time and high-tension current inductor nameplate
It is worth inconsistent, causes electrical energy measurement inaccurate, cause huge loss to power supply enterprise.
Summary of the invention
The first object of the present invention is to provide a kind of method of practical no-load voltage ratio value of accurate detection high-tension current inductor.
The second object of the present invention is to provide the meter for realizing the method for the above-mentioned practical no-load voltage ratio value of detection high-tension current inductor
Calculation machine device.
The third object of the present invention is to provide the meter for realizing the method for the above-mentioned practical no-load voltage ratio value of detection high-tension current inductor
Calculation machine readable storage medium storing program for executing.
In order to realize that the first above-mentioned purpose, method provided by the invention are used to be arranged in the host of high voltage side of transformer,
Each host corresponds to one or more transformers, and this method includes the current signal for obtaining high-tension current inductor primary side,
The current signal for acquiring high-tension current inductor secondary side, calculates the practical no-load voltage ratio value of high-tension current inductor.
By above scheme as it can be seen that the host of this programme is adopted by the current signal of acquisition high-tension current inductor primary side
Collect the current signal of high-tension current inductor secondary side to calculate the practical no-load voltage ratio value of high-tension current inductor, reaches accurate meter
Calculate the purpose of the practical no-load voltage ratio value of high-tension current inductor.
Further embodiment is to obtain the current signal of high-tension current inductor primary side, comprising: receives extension set output
The current signal of step down side calculates high-tension current inductor primary side according to the current signal of step down side
Current signal, each extension set correspond to a transformer.
As it can be seen that host can calculate high-tension current mutual inductance according to the current signal of the step down side of extension set output
The current signal of device primary side.
Further embodiment is to calculate high-tension current inductor primary side according to the current signal of step down side
Current signal, comprising: judge whether the quantity of extension set is greater than 2, if it is not, then calculating according to calculation formula IA=K (Ia-Ic)
The current signal of high-tension current inductor primary side out, wherein IA is the arrow of the current signal of high-tension current inductor primary side
Magnitude, K are the coefficient of transformer corresponding to extension set, and Ia is the vector value of step down side current signal ,-it is vector symbol,
Ic is the vector value of step down side current signal.
As it can be seen that if the current signal calculation formula of high-tension current inductor primary side is IA=K when the quantity of extension set is 1
(Ia-Ic)。
Further embodiment is, if the quantity of extension set is greater than 2, according to calculation formula IA=K1 (Ia1-Ic1)+K2
(Ia2-Ic1)+... Kn (Ian-Icn) calculates the current signal of high-tension current inductor primary side, wherein the high pressure that IA is
The vector value of mutual inductor primary side current signal, K1 are the corresponding transformer coefficient value of first extension set, and Ia1 is first extension set
The vector value of corresponding step down side current signal, Ic1 are the corresponding step down side current signal of first extension set
Vector value, K2 is the corresponding transformer coefficient value of second extension set, and Ia2 is second extension set corresponding step down side electricity
Flow signal vector value, Ic2 be the corresponding step down side of second extension set current signal vector value, n-th of Kn
The corresponding transformer coefficient value of extension set, Ian are the vector value of the current signal of the corresponding step down side of n-th of extension set, Icn
For the vector value of the current signal of the corresponding step down side of n-th of extension set ,-it is vector symbol ,+it is vector symbol.
As it can be seen that the calculation formula of the current signal IA of high-tension current inductor primary side is when the quantity of extension set is greater than 2
IA=K1 (Ia1-Ic1)+K2 (Ia2-Ic1)+... Kn (Ian-Icn).
Further embodiment is to obtain the current signal of high-tension current inductor primary side, further includes: receives extension set output
Branch current signal, judge the quantity of extension set, if the quantity of extension set less than 2, the electricity of high-tension current inductor primary side
Flowing signal is that extension set exports branch current signal.
As it can be seen that extension set can be counted directly by acquiring the current signal of step down side corresponding to the extension set
It calculates, when the quantity of extension set is 1, the current signal for obtaining high-tension current inductor primary side, which can also be, directly receives extension set
The branch current signal of output.
Further embodiment is, if the quantity of extension set is greater than 2, according to calculation formula IA=IA1+IA2+ ...+Ian
The current signal of high-tension current inductor primary side is calculated, IA is the vector of high-tension current inductor primary side current signal
Value, IA1 are the vector value of the branch current signal of first extension set output, and IA2 is the branch current letter of second extension set output
Number vector value, IAn be n-th of extension set output branch current signal vector value.
As it can be seen that extension set can be counted directly by acquiring the current signal of step down side corresponding to the extension set
It calculates, if the quantity of extension set is greater than 2, the current signal of high-tension current inductor primary side can be the corresponding branch of multiple extension sets
The vector sum of road current signal vector value.
In order to realize the second above-mentioned purpose, the present invention also provides computer installation further include processor and storage
Device, memory are stored with computer program, and above-mentioned detection high-tension current inductor is realized when computer program is executed by processor
Each step of the method for practical no-load voltage ratio value.
In order to realize above-mentioned third purpose, the present invention also provides computer readable storage medium on be stored with computer
Program, the computer program realize each of the method for the practical no-load voltage ratio value of above-mentioned detection high-tension current inductor when being executed by processor
A step.
Detailed description of the invention
Fig. 1 is the structural block diagram using host of the embodiment of the present invention.
Fig. 2 is the structural block diagram using extension set of the embodiment of the present invention.
Fig. 3 is using the embodiment of the present invention and when the quantity of extension set is 1, high-tension current inductor, electric energy meter, host,
The circuit diagram of electrical connection between one transformer, an extension set.
Fig. 4 is using the embodiment of the present invention and when the quantity of extension set is 2, high-tension current inductor, electric energy meter, host,
The circuit diagram of electrical connection between two transformers, two extension sets.
Fig. 5 is the first pass figure of the embodiment of the present invention.
Fig. 6 is the second flow chart of the embodiment of the present invention.
Fig. 7 is the third flow chart of the embodiment of the present invention.
The invention will be further described with reference to the accompanying drawings and embodiments.
Specific embodiment
The present invention provides a kind of detection practical no-load voltage ratio of high-tension current inductor method extremely, applies according to transformer low voltage
The current signal of side calculates on the terminal device of the current signal of high voltage side of transformer, typically applies in host or extension set
On equal terminal devices.Computer installation of the invention can be above-mentioned electronic equipment, and computer readable storage medium can be
Various storage mediums with data storage function, such as FLAASH, EEPROM nonvolatile memory.
Detect the practical no-load voltage ratio value embodiment of the method for high-tension current inductor:
Host in the present embodiment can be host instrument, and extension set can be extension set instrument, and transformer is preferably wiring
Group is the transformer of Dyn11.Wherein, the high-pressure side of transformer is arranged in host, and the low-pressure side of transformer is arranged in extension set, often
One host corresponds to one or more transformers, each extension set corresponds to a transformer, communicates between host and extension set
Connection, and host, to extension set active transmission communication request, communication modes can be wireless telecommunications, can also be wire communication.
Preferably, as shown in Figure 1, host includes the first acquisition module 10, the first computing module 12 and the first communication mould
Block 14, the first acquisition module 10 are used to acquire the current signal of high-tension current inductor primary side, and by high-tension current inductor
The electric current of primary side is exported to the first computing module 12, and the first communication module 14 is communicated wirelessly with extension set, the first communication mould
The current signal for receiving extension set output or branch current signal are input to the first computing module 12 by block 14, and first calculates mould
Block 12 calculates the current signal of high-tension current inductor secondary side according to the current signal or branch current signal that receive,
Optionally, the first computing module 12 directly can carry out wire communication with extension set, receive the current signal or branch of extension set output
Road current signal.
As shown in Fig. 2, extension set includes the second acquisition module 20, the second computing module 22 and the second communication module 24, the
Two acquisition modules 20 acquire the current signal of step down side, and current signal is exported to the second computing module 22 and the
Two communication modules 24, the second computing module 22 can calculate branch current signal and be sent to according to the current signal received
Second communication module 24, the second communication module 24 communicate wirelessly with host, and the second communication module 24 can will receive
Current signal or branch current signal are exported to host, and optionally, the second acquisition module 20 or the second computing module 22 can be with
Wire communication directly is carried out with host, directly exports current signal or branch current signal to host.
Specifically, referring to Fig. 3, it is including A phase, B phase, C phase three-phase that the present embodiment, which is applied, when the quantity of extension set is 1
The occasion of route, high-tension current inductor CT1, high-tension current inductor CT2, electric energy meter 1, host 2, extension set 3, transformer 4.Its
In, communication connection between host 2 and extension set 3, A phase, B phase, C phase three-phase line is separately positioned on the high-pressure side of transformer 4, high pressure
The primary side of Current Transmit 1 is connected in series with the on high-tension side A of transformer 4, the secondary side and electric energy of high-tension current inductor CT1
Table 1 is connected, and primary side and the on high-tension side C of transformer 4 of high-tension current inductor CT2 is connected in series, high-tension current inductor CT2's
Secondary side is connected with electric energy meter 1, in this way, high-tension current inductor CT1, high-tension current inductor CT2 acquire 4 high-pressure side of transformer
A phase, C phase two-phase current signal IA, IC by no-load voltage ratio value reduce after formed current signal IA1、IC1It exports to electric energy meter 1, i.e.,
High-tension current inductor CT1 primary side, high-tension current inductor CT2 primary side current signal be IA, IC, high-tension current mutual inductance
Device CT1 secondary side, high-tension current inductor CT2 secondary side current signal be IA1、IC1。
Preferably, host 2 can respectively with the secondary side of high-tension current inductor CT1, high-tension current inductor CT2 two
Secondary side series connection, for example, the split-core type meter of host 2 to be clamped to secondary side, the high-tension current inductor in high-tension current inductor CT1 respectively
In the current line of the secondary side of CT2, in this way, host 2 can collect high-tension current inductor CT1 secondary side, high-tension current mutual inductance
The current signal IA of device CT2 secondary side output1、IC1。
The voltage inlet wire of extension set 3 is connected with the low-pressure side a phase of transformer 4, b phase, c line three respectively, the split-core type meter point of extension set 3
It Qian not be in the low-pressure side a phase of transformer 4, b phase, the current line of c line three-phase, in this way, extension set 3 can acquire the low of transformer 4
Press side a phase, b phase, c phase three-phase current signal Ia, Ib, Ic.
Preferably, extension set 3 by the low-pressure side a phase of collected transformer 4, b phase, c line three-phase current signal Ia, Ib,
Ic is exported to host 2, and host 2 can calculate current signal IA, IC, and the calculation formula of current signal IA is IA=K (Ia-
Ic), wherein IA is the vector value of current signal IA, and K is the coefficient value of transformer 4, and Ia is the vector value of current signal Ia ,-be
Vector symbol, Ic are the vector value of current signal Ic；The calculation formula of current signal IC is IC=K (Ic-Ib), wherein IC is
The vector value of current signal IC, K are the coefficient value of transformer 4, and Ic is the vector value of current signal Ic ,-it is vector symbol, Ib is
The vector value of current signal Ib.In this way, host 2 according to calculated current signal IA, IC respectively with current signal IA1、IC1It
Between ratio, that is, calculate the practical no-load voltage ratio value of high-tension current inductor CT1, high-tension current inductor CT2.
Preferably, extension set 3 can according to the low-pressure side a phase of transformer 4, b phase, c line three-phase current signal Ia, Ib, Ic
Calculate two branch current signals, due to extension set quantity be 1, i.e., extension set 3 according to the low-pressure side a phase of transformer 4, b phase,
The calculated two branch current signals of current signal Ia, Ib, Ic of c line three-phase be current signal IA, IC, calculation with it is upper
State host 2 according to the low-pressure side a phase of transformer 4, b phase, c line three-phase current signal Ia, Ib, Ic calculate current signal IA,
IC is identical, and details are not described herein.Then, extension set 3 exports calculated current signal IA, IC to host 2, host 2 further according to
Current signal IA, IC respectively with current signal IA1、IC1Between radiometer to calculate high-tension current inductor CT1, high-tension current mutual
The practical no-load voltage ratio value of sensor CT2.
When the quantity of extension set is 2, referring to fig. 4, which includes that A phase, B phase, C phase three-phase line, high-tension current are mutual
Sensor CT3, high-tension current inductor CT4, electric energy meter 11, host 12, transformer 421, extension set 31, transformer 42, extension set 32,
In, the communication connection between extension set 31, extension set 32, A phase, B phase, C phase three-phase line are separately positioned on transformer to host 12 respectively
41 and transformer 42 high-pressure side, the primary side of high-tension current inductor CT3 connects with A phase line, high-tension current inductor
The secondary side of CT1 is connected with electric energy meter 11, and the primary side of high-tension current inductor CT4 is connected with C phase line, high-tension current mutual inductance
The secondary side of device CT2 is connected with electric energy meter 1, in this way, high-tension current inductor CT3, high-tension current inductor CT4 acquire A phase, C
Current signal IA, IC of two phase line of phase form current signal IA after reducing by no-load voltage ratio value1、IC1It exports to electric energy meter 11, i.e., it is high
Voltage current transformer CT3 primary side, high-tension current inductor CT4 primary side current signal be IA, IC, high-tension current inductor
CT3 secondary side, high-tension current inductor CT4 secondary side current signal be IA1、IC1。
Preferably, host 12 can respectively with the secondary side of high-tension current inductor CT3, high-tension current inductor CT4
Secondary side series connection, for example, the split-core type meter of host 12 is clamped secondary side in high-tension current inductor CT3, high-tension current mutual inductance respectively
In the current line of the secondary side of device CT4, in this way, to collect high-tension current inductor CT3 secondary side, high-tension current mutual for host 12
The current signal IA of sensor CT4 secondary side output1、IC1。
The high-pressure side A1 phase of transformer 41, B1 phase, C1 phase three-phase are connect with A phase, B phase, C phase three-phase line respectively, extension set
31 voltage inlet wire is connected with the low-pressure side a phase of transformer 41, b phase, c line three respectively, and the split-core type meter of extension set 31 clamps respectively to be become
The low-pressure side a phase of depressor 41, b phase, in the current line of c line three-phase, in this way, extension set 31 can acquire the low-pressure side a of transformer 41
Phase, b phase, c line three-phase current signal Ia1, Ib1, Ic1.
The high-pressure side A2 phase of transformer 42, B2 phase, C2 three-phase are connect with A phase, B phase, C phase three-phase line respectively, extension set 32
Voltage inlet wire be connected respectively with the low-pressure side a phase of transformer 42, b phase, c line three, the split-core type meter of extension set 32 is clamped respectively in transformation
The low-pressure side a phase of device 42, b phase, in the current line of c line three-phase, in this way, extension set 32 can acquire transformer 42 low-pressure side a phase,
Current signal Ia2, Ib2, Ic2 of b phase, c line three-phase.
Extension set 31 and extension set 32 respectively export current signal Ia1, Ib1, Ic1 and current signal Ia2, Ib2, Ic2 to master
Machine 2, host 2 can calculate current signal IA, IC, and the calculation formula of current signal IA is IA=K1 (Ia1-Ic1)+K2
(Ia2-Ic1), wherein IA is the vector value of current signal IA, and K1 is the coefficient value of transformer 41, and Ia1 is current signal Ia1's
Vector value, Ic1 are the vector value of current signal Ic1, and K2 is the coefficient value of transformer 42, and Ia2 is the vector of current signal Ia2
Value, Ic2 are the vector value of current signal Ic2 ,-it is vector symbol ,+it is vector symbol；The calculation formula of current signal IC is IC
=K1 (Ic1-Ib1)+K2 (Ic2-Ib1), wherein IA is the vector value of current signal IC, and K1 is the coefficient value of transformer 41,
Ic1 is the vector value of current signal Ic1, and Ib1 is the vector value of current signal Ib1, and K2 is the coefficient value of transformer 42, and Ic2 is
The vector value of current signal Ic2, Ib2 are the vector value of current signal Ib2 ,-it is vector symbol ,+it is vector symbol.
In this way, host 12 according to calculated current signal IA, IC respectively with current signal IA1、IC1Between ratio, i.e.,
Calculate the practical no-load voltage ratio value of high-tension current inductor CT3, high-tension current inductor CT4.
Optionally, extension set 31 can according to the low-pressure side a phase of transformer 41, b phase, c line three-phase current signal Ia1,
Ib1, Ic1 calculate branch current signal IA1, IC1, and the calculation formula of branch current signal IA1 is IA1=K1 (Ia1-Ic1),
Wherein, IA1 is the vector value of branch current signal IA1, and K1 is the coefficient value of transformer 41, and Ia1 is the vector of current signal Ia1
Value, Ic1 are the vector value of current signal Ic1 ,-it is vector symbol；The calculation formula of branch current signal IA1 is IC=K1
(Ic1-Ib1), wherein IC1 is the vector value of branch current signal IC1, and K1 is the coefficient value of transformer 41, and Ic1 is electric current letter
The vector value of number Ic1, Ib1 are the vector value of current signal Ib1 ,-it is vector symbol.Then, extension set 31 is by calculated branch
Current signal IA1, IC1 are exported to host 12.
Extension set 32 can be counted according to current signal Ia2, Ib2, Ic2 of the low-pressure side a phase of transformer 42, b phase, c line three-phase
Branch current signal IA2, IC2 are calculated, the calculation formula of branch current signal IA2 is IA2=K2 (Ia2-Ic2), wherein IA2
For the vector value of branch current signal IA2, K2 is the coefficient value of transformer 42, and Ia2 is the vector value of current signal Ia2, and Ic2 is
The vector value of current signal Ic2 ,-it is vector symbol；The calculation formula of branch current signal IA2 is IC=K2 (Ic2-Ib2),
In, IC2 is the vector value of branch current signal IC2, and K2 is the coefficient value of transformer 42, and Ic2 is the vector of current signal Ic2
Value, Ib2 are the vector value of current signal Ib2 ,-it is vector symbol.Then, extension set 32 by calculated branch current signal IA2,
IC2 is exported to host 12.
Host 12 calculates electric current according to branch current signal IA1, IC1 and branch current signal IA2, IC2 for receiving
Signal IA and current signal IC.The calculation formula of current signal IA is IA=IA1+IA2, wherein IA is the arrow of current signal IA
Magnitude, IA1 are the vector value of current signal IA1, and IA2 is the vector value of current signal IA2 ,+it is vector symbol；Current signal IC
Calculation formula be IC=IC1+IC2, wherein IC be current signal IC vector value, IC1 be current signal IC1 vector value,
IC2 is the vector value of current signal IC2 ,+it is vector symbol.
Then, host 2 further according to calculated current signal IA, IC respectively with current signal IA1、IC1Between radiometer
Calculate the practical no-load voltage ratio value of high-tension current inductor CT3, high-tension current inductor CT4.
The preferred terminal device of the present embodiment is host, is become below with reference to Fig. 5 introduction detection high-tension current inductor is practical
The method of pressure value obtains the current signal of high-tension current inductor primary side firstly, executing step S1.Host can in this implementation
The current signal of high-tension current inductor primary side is calculated with the current signal of the step down side exported according to extension set,
Host can also calculate the current signal of high-tension current inductor primary side according to the branch current signal that extension set exports.
Then, step S2 is executed, the current signal of high-tension current inductor secondary side is acquired.For example, by the split-core type meter of host
Pincers acquire the current signal of high-tension current inductor secondary side in the current line of high-tension current inductor secondary side.
Finally, executing step S3, the practical no-load voltage ratio value of high-tension current inductor is calculated.As it can be seen that host is according to getting
The current signal of high-tension current inductor primary side and the current signal of high-tension current inductor secondary side between ratio come
The practical no-load voltage ratio value for calculating high-tension current inductor reaches the mesh for accurately calculating the practical no-load voltage ratio value of high-tension current inductor
's.
Specifically, the method for obtaining the current signal of high-tension current inductor primary side in conjunction with Fig. 6 introduction.Firstly, executing
Step S11 receives the current signal of the step down side of extension set output.For example, being clamped the split-core type meter of extension set respectively in transformer
Low-pressure side a phase, b phase, in the current line of c line three-phase, in this way, extension set 3 can acquire the low-pressure side a phase of transformer, b phase, c line
Current signal Ia, Ib, Ic of three-phase, then, extension set 3 export collected current signal Ia, Ib, Ic to host.
Finally, executing step S12, judge whether the quantity of extension set is greater than 2, if it is not, S13 is thened follow the steps, according to
Calculation formula IA=K (Ia-Ic) calculates the current signal of high-tension current inductor primary side.Wherein, IA is that high-tension current is mutual
The vector value of the current signal of sensor primary side, K are the coefficient value of transformer corresponding to extension set, and Ia is step down side electric current
The vector value of signal ,-it is vector symbol, Ic is the vector value of step down side current signal.As it can be seen that host can active
Communication signal is sent to extension set, the quantity of extension set is then determined according to the quantity of the communication signal of feedback, when the quantity of extension set
When being 1, the current signal of high-tension current inductor primary side is calculated in conjunction with calculation formula IA=K (Ia-Ic).
If the quantity of extension set is greater than 2, S14 is thened follow the steps, according to calculation formula IA=K1 (Ia1-Ic1)+K2 (Ia2-
Ic1)+... Kn (Ian-Icn) calculates the current signal of high-tension current inductor primary side.Wherein, IA is high-voltage mutual inductor
The vector value of primary side current signal, K1 are the corresponding transformer coefficient value of first extension set, and Ia1 is that first extension set is corresponding
The vector value of step down side current signal, Ic1 are the vector of the corresponding step down side current signal of first extension set
Value, K2 are the corresponding transformer coefficient value of second extension set, and Ia2 is the corresponding step down side current signal of second extension set
Vector value, Ic2 be the corresponding step down side of second extension set current signal vector value, Kn be n-th of extension set pair
The transformer coefficient value answered, Ian are the vector value of the current signal of the corresponding step down side of n-th of extension set, Icn n-th
The vector value of the current signal of the corresponding step down side of a extension set ,-it is vector symbol ,+it is vector symbol.As it can be seen that when dividing
The quantity of machine be greater than 2 when, host can in conjunction with calculation formula IA=K1 (Ia1-Ic1)+K2 (Ia2-Ic1)+... Kn (Ian-
Icn the current signal of high-tension current inductor primary side) is calculated.
Another method of the current signal of high-tension current inductor primary side is obtained below with reference to Fig. 7 introduction.
Firstly, executing step S21, the branch phase current of extension set output is received.As it can be seen that extension set collects acquisition transformer 4
Low-pressure side a phase, b phase, c phase three-phase current signal Ia, Ib, Ic branch directly can be calculated according to current signal Ia, Ib, Ic
Road current signal IA1, IB1 and IC1, the calculation formula of branch current signal IA1 are IA1=K1 (Ia1-Ic1), wherein IA1
For the vector value of branch current signal IA1, K1 is the coefficient value of transformer 41, and Ia1 is the vector value of current signal Ia1, and Ic1 is
The vector value of current signal Ic1 ,-it is vector symbol, the calculation formula of branch current signal IB1 is IB1=K1 (Ib1-Ia1),
Wherein, IB1 is the vector value of branch current signal IB1, and K1 is the coefficient value of transformer 41, and Ib1 is the vector of current signal Ib1
Value, Ia1 are the vector value of current signal Ia1 ,-it is vector symbol；The calculation formula of branch current signal IC1 is IC1=K1
(Ic1-Ib1), wherein IC1 is the vector value of branch current signal IC1, and K1 is the coefficient value of transformer 41, and Ic1 is electric current letter
The vector value of number Ic1, Ib1 are the vector value of current signal Ib1 ,-it is vector symbol.
Finally, executing step S22, judge whether the quantity of extension set is greater than 2, if it is not, S23 is thened follow the steps, high pressure
The current signal of current transformer primary side is the branch current signal of extension set output.As it can be seen that when the quantity of extension set is 1, it is high
The current signal of voltage current transformer primary side is the branch current signal of extension set output.
If the quantity of extension set is greater than 2, S24 is thened follow the steps, is counted according to calculation formula IA=IA1+IA2+ ...+IAn
The current signal of high-tension current inductor primary side is calculated, IA is the vector value of high-tension current inductor primary side current signal,
IA1 is the vector value of the branch current signal of first extension set output, and IA2 is the branch current signal of second extension set output
Vector value, IAn are the vector value of the branch current signal of n-th of extension set output.As it can be seen that when the quantity of extension set is greater than 2, host
The current signal of high-tension current inductor primary side can be calculated in conjunction with IA=IA1+IA2+ ...+Ian.
It can be seen from the above, extension set will collect after current signal of the present embodiment by extension set acquisition step down side
The current signal of step down side export to host, host can calculate height according to the current signal of step down side
The current signal of voltage current transformer primary side, extension set can also be calculated according to the current signal of collected step down side
Out branch current signal is simultaneously exported to host, and host calculates the electricity of high-tension current inductor primary side according to branch current signal
Signal is flowed, meanwhile, host also acquires the current signal of high-tension current inductor secondary side, in this way, host can be according to high pressure
The current signal of current transformer primary side and the current signal of the secondary survey of high-tension current inductor calculate high-tension current mutual inductance
The practical no-load voltage ratio value of device achievees the purpose that the practical no-load voltage ratio value for accurately calculating high-tension current inductor.
Computer installation embodiment:
The computer installation of the present embodiment include processor, memory and storage in memory and can be in processor
The computer program of upper operation, such as the computer processing for realizing above- mentioned information processing method.Processor executes meter
The above-mentioned detection high-tension current inductor practical each step for becoming ratio approach is realized when calculation machine program.
For example, computer program can be divided into one or more modules, one or more module, which is stored in, is deposited
It in reservoir, and is executed by processor, to complete modules of the invention.One or more modules can be can complete it is specific
The series of computation machine program instruction section of function, the instruction segment is for describing execution of the computer program in terminal device
Journey.
It should be noted that terminal device can be desktop PC, notebook, palm PC and cloud server etc.
Calculate equipment.Terminal device may include, but be not limited only to, processor, memory.It will be understood by those skilled in the art that this hair
Bright schematic diagram is only the example of terminal device, does not constitute the restriction to terminal device, may include than illustrate it is more or
Less component perhaps combines certain components or different components, such as terminal device can also be set including input and output
Standby, network access equipment, bus etc..
Processor alleged by the present invention can be central processing unit (Central Processing Unit, CPU), may be used also
To be other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng processor is the control centre of terminal device, utilizes the various pieces of various interfaces and the entire terminal device of connection.
Memory can be used for storing computer program and/or module, and processor is stored in memory by operation or execution
Interior computer program and/or module, and the data being stored in memory are called, realize the various functions of terminal device.
Memory can mainly include storing program area and storage data area, wherein storing program area can storage program area, at least one
Application program needed for function (such as sound-playing function, image player function etc.) etc.；Storage data area can be stored according to hand
Machine uses created data (such as audio data, phone directory etc.) etc..In addition, memory may include high random access
Memory can also include nonvolatile memory, such as hard disk, memory, plug-in type hard disk, intelligent memory card (Smart
Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash Card), at least one disk
Memory device, flush memory device or other volatile solid-state parts.
Computer readable storage medium:
If the integrated module of terminal device be realized in the form of SFU software functional unit and as the sale of independent product or
In use, can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the computer by computer program
Program can be stored in computer readable storage medium, and the computer program is when being executed by processor, it can be achieved that above-mentioned detection
The practical each step for becoming ratio approach of high-tension current inductor.
Wherein, computer program includes computer program code, and computer program code can be source code form, object
Code form, executable file or certain intermediate forms etc..Computer-readable medium may include: that can carry computer program
Any entity or device of code, recording medium, USB flash disk, mobile hard disk, magnetic disk, CD, computer storage, read-only memory
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, electricity
Believe signal and software distribution medium etc..It should be noted that the content that computer-readable medium includes can be managed according to the administration of justice
Local legislation and the requirement of patent practice carry out increase and decrease appropriate, such as in certain jurisdictions, according to legislation and patent
Practice, computer-readable medium does not include electric carrier signal and telecommunication signal.
It should be noted that the above is only a preferred embodiment of the present invention, but the design concept invented is not limited thereto,
All insubstantial modifications made using this design to the present invention, are also entered within protection scope of the present invention.
Claims (8)
1. a kind of method for detecting the practical no-load voltage ratio value of high-tension current inductor, is used for host, the high-tension current inductor and institute
State the high-pressure side that transformer is arranged in host, which is characterized in that this method comprises:
The current signal for obtaining the high-tension current inductor primary side acquires the electric current of the high-tension current inductor secondary side
Signal calculates the practical no-load voltage ratio value of the high-tension current inductor.
2. a kind of method for detecting the practical no-load voltage ratio value of high-tension current inductor according to claim 1, it is characterised in that:
The current signal for obtaining the high-tension current inductor primary side, comprising: receive the transformer low voltage of extension set output
The current signal of side calculates the electricity of the high-tension current inductor primary side according to the current signal of the step down side
Signal is flowed, the low-pressure side of the transformer is arranged in the extension set, and each extension set corresponds to a transformer.
3. a kind of method for detecting the practical no-load voltage ratio value of high-tension current inductor according to claim 2, it is characterised in that:
The current signal according to the step down side calculates the electric current letter of the high-tension current inductor primary side
Number, comprising: judge whether the quantity of the extension set is greater than 2, if it is not, then calculating according to calculation formula IA=K (I a-I c)
The current signal of high-tension current inductor primary side out, wherein IA is the current signal of the high-tension current inductor primary side
Vector value, K be the extension set corresponding to transformer coefficient value, I a be step down side current signal vector value ,-
For vector symbol, I c is the vector value of step down side current signal.
4. a kind of method for detecting the practical no-load voltage ratio value of high-tension current inductor according to claim 2, it is characterised in that:
If the quantity of the extension set is greater than 2, according to calculation formula IA=K1 (I a1-I c1)+K2 (I a2-I c1)
+ ... Kn (I an-I cn) calculates the current signal of high-tension current inductor primary side, wherein IA is high-voltage mutual inductor one
The vector value of secondary side current signal, K1 are the corresponding transformer coefficient value of first extension set, and I a1 is that first extension set is corresponding
The vector value of step down side current signal, I c1 are the vector of the corresponding step down side current signal of first extension set
Value, K2 are the corresponding transformer coefficient value of second extension set, and I a2 is the corresponding step down side electric current letter of second extension set
Number vector value, I c2 be the corresponding step down side of second extension set current signal vector value, Kn be n-th of extension set
Corresponding transformer coefficient value, I an are the vector value of the current signal of the corresponding step down side of n-th of extension set, and I cn is
The vector value of the current signal of the corresponding step down side of n-th of extension set ,-it is vector symbol ,+it is vector symbol.
5. a kind of method for detecting the practical no-load voltage ratio value of high-tension current inductor according to any one of claims 1 to 4, special
Sign is:
The current signal for obtaining the high-tension current inductor primary side, further includes: receive the branch current of extension set output
Signal, judges whether the quantity of the extension set is greater than 2, if it is not, the then electric current letter of the high-tension current inductor primary side
Number for the extension set output branch current signal.
6. a kind of method for detecting the practical no-load voltage ratio value of high-tension current inductor according to claim 5, it is characterised in that:
If the quantity of the extension set is greater than 2, then high-tension current is calculated according to calculation formula IA=IA1+IA2+ ...+I an
The current signal of mutual inductor primary side, IA are the vector value of the high-tension current inductor primary side current signal, IA1 first
The vector value of the branch current signal of a extension set output, IA2 are the vector value of the branch current signal of second extension set output,
IAn is the vector value of the branch current signal of n-th of extension set output.
7. computer installation, which is characterized in that including processor and memory, the memory is stored with computer program,
It is realized when the computer program is executed by processor and detects high-tension current inductor reality as described in any one of claim 1 to 6
Each step of border change ratio approach.
8. computer readable storage means are stored thereon with computer program, which is characterized in that the computer program is processed
It is realized when device executes and detects the practical each step for becoming ratio approach of high-tension current inductor as described in any one of claim 1 to 6
Suddenly.
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