CN109581084A - Platform area phase recognition methods based on the degree of association - Google Patents
Platform area phase recognition methods based on the degree of association Download PDFInfo
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- CN109581084A CN109581084A CN201811444065.XA CN201811444065A CN109581084A CN 109581084 A CN109581084 A CN 109581084A CN 201811444065 A CN201811444065 A CN 201811444065A CN 109581084 A CN109581084 A CN 109581084A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
Abstract
The present invention relates to a kind of platform area phase recognition methods based on the degree of association, by calculating any single-phase electric meter voltage degree of association between summary table three-phase voltage respectively in platform area, and the voltage connect using the phase voltage of summary table corresponding to the most relevance degree in all degrees of association of gained as any single-phase electric meter is separate, it is thus achieved that not needing to change existing area, it does not need to increase the module for filling out adaptation for concentrator and each single-phase electric meter yet, it only needs to upgrade based on program designed by this programme in concentrator, accurately identify separate to the connect voltage of single-phase electric meter each in platform area can be respectively completed, the cost for realizing platform area phase identification is effectively saved.
Description
Technical field
The present invention relates to power domain more particularly to a kind of platform area phase recognition methods based on the degree of association.
Background technique
Be conducive to for application of the phase automatic identification technology of concentrator and ammeter in metering automation system to platform
It distinguishes phase load and packet loss is quantified, realize the accurate monitoring and analysis of platform area line loss, be grid loss management
Inexorable trend；It can be guaranteeing platform area distribution transforming power-balance and on the basis of safety, during minimizing power Transmission
Loss, facilitates Controlling line loss personnel and targetedly finds the problem and solve the problems, such as, to further increasing platform area power distribution network economy
Operation level has very big practical value.
In order to accurately obtain the phase information of single-phase electric meter phase information and concentrator in platform area, existing phase is known
Other method mainly carries out phase-detection by power failure mode.When detecting phase in the way of power failure, need in platform area
Affiliated area is implemented to have a power failure, and certainly will will affect resident's daily life in this area.
In recent years, it is gradually used in the way of the novel routing module detection phase of replacement.It is daily that copy electric process main
It is that will copy back and be stored in routing module from the phase information of node (ammeter, collector), then goes to read by concentrator and deposit
Node phase information that node (ammeter, collector) phase information in routing module and storing again is read is stored up to the concentrator
It is interior.When replacement Novel road being taken to detect phase by modular manner, i.e., increase electric energy meter phase bit function in platform area on routing module.But
It is when replacement Novel road being taken to detect phase by modular manner, the concentrator in platform area, routing module and electric energy meter to be needed all to prop up
Holding just can be used, i.e. electric energy meter and concentrator needs to increase adaptation module, with the novel routing module being adapted to after replacement.Once
The program is promoted, needs to replace old product comprehensively, causes cost excessively high.Moreover, road is using the initiative of the program
By the manufacturer of module, since each routing module manufacturer would generally use different phase identification schemes, this also must
It so will cause the wasting of resources.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of platform area phase based on the degree of association for the above-mentioned prior art
Position recognition methods.
The technical scheme of the invention to solve the technical problem is: the phase identification side, platform area based on the degree of association
Method is formed by platform area phase identification system for concentrator, summary table and M single-phase electric meter, which is characterized in that described to be based on
The platform area phase recognition methods of the degree of association include the following steps 1~step 7:
Step 1, the concentrator acquires the summary table according to prefixed time interval within a preset period of time simultaneously respectively
The voltage data of three-phase voltage value and any single-phase electric meter corresponds to the three-phase voltage value set for obtaining the summary table and is somebody's turn to do
The voltage value set of any single-phase electric meter；Wherein, the preset time period is labeled as Y, and the prefixed time interval is labeled as W,
Acquisition total degree of the concentrator in the preset time period is labeled as N；A of the concentrator in the summary table of X time acquisition
Phase voltage value is labeled as UAX, the concentrator is labeled as UB in the B phase voltage value of the summary table of X time acquisitionX, the concentrator exists
The C phase voltage value of the summary table of X time acquisition is labeled as UCX；Described any single-phase electric meter is m-th in M single-phase electric meter
Single-phase electric meter, the concentrator are labeled as Um in the voltage value of m-th of single-phase electric meter of X time acquisitionX；1≤m≤M, 1≤X
≤N； Indicate logarithmIt is rounded downwards；
Step 2, using the single-phase electric meter voltage value of concentrator one acquisition in office as reference sequences, and combining should
The three-phase voltage value of any time corresponding summary table acquired, be calculated it is corresponding this any time based on the single-phase electric meter voltage value
Difference sequence, and obtain corresponding to total difference sequence based on the single-phase electric meter voltage value of all times of collection；Where it is assumed that described
Concentrator is Um in the single-phase electric meter voltage value that i-th acquiresi, the corresponding i-th based on the single-phase electric meter voltage value
Difference sequence is labeled as Si, Si={ △1(i),△2(i),△3(i) }, corresponding all times of collection based on the single-phase electric meter voltage
Total difference sequence of value is labeled as S, S={ Si}:
Step 3, the maximum value in total difference sequence and the minimum value in total difference sequence are obtained；Wherein, described
Maximum value in total difference sequence is labeled as △max, the minimum value in total difference sequence is labeled as △min:
△max=max (△1(1),△2(1),△3(1) ..., △1(N),△2(N),△3(N))；
△min=min (△1(1),△2(1),△3(1) ..., △1(N),△2(N),△3(N))；
Step 4, calculate concentrator single-phase electric meter voltage value collected each time respectively with the three-phase of corresponding summary table
Incidence coefficient between voltage value；Wherein, the single-phase electric meter voltage value Um that the concentrator is acquired in i-thiWith it is corresponding
The A phase voltage value UA of summary tablei, B phase voltage value UBiAnd C phase voltage value UCiBetween incidence coefficient be respectively labeled as γ (UAi,
Umi)、γ(UBi,Umi) and γ (UCi,Umi):
δ is resolution ratio, and δ ∈ [0,1]；
Step 5, calculate the single-phase electric meter voltage value that the concentrator has acquired respectively with the corresponding summary table three-phase
The degree of association between voltage value；Wherein, the single-phase electric meter voltage value Um that the concentrator has acquired respectively with it is corresponding described
The degree of association is respectively labeled as γ (UA, Um), γ between A phase voltage value UA, the B phase voltage value UB and C phase voltage value UC of summary table
(UB, Um) and γ (UC, Um):
Step 6, the most relevance angle value in multilevel iudge step 5 in all degrees of association of gained, and by the most relevance degree
The voltage that the phase voltage of summary table corresponding to value is connect as the single-phase electric meter is separate；Wherein, the most relevance angle value label
For γmax: γmax=max (γ (UA, Um), γ (UB, Um), γ (UC, Um))；
Step 7, in the way of step 1~step 6, the voltage that remaining M-1 single-phase electric meter is connect successively is respectively obtained
It is separate.
Preferably, resolution ratio δ=0.5 in the step 4.
It improves again, the platform area phase recognition methods based on the degree of association further include: any single-phase electric meter is directed to, by more
It is secondary to repeat step 1~step 6, it is corresponding obtain for the separate multiple judgements of any connect voltage of single-phase electric meter as a result,
And it is the voltage with maximum times in the multiple judgement result is separate as current any connect voltage phase of single-phase electric meter
Other final judgement result.
It improves again, the platform area phase recognition methods based on the degree of association further include: any single-phase electric meter is directed to, by pressing
Step 1~step 6 is repeated according to default detection identification number, correspondence obtains separate for any connect voltage of single-phase electric meter
Multiple judgements as a result, and judge it is the multiple determine result voltage it is separate inconsistent when, execute alarm prompt the step of.
Further, the default detection identification number is 3 times.
Compared with the prior art, the advantages of the present invention are as follows: since the voltage of single-phase electric meter used by a user must be with
The a certain phase voltage variation tendency in concentrator three-phase voltage (A phase voltage, B phase voltage and C phase voltage) in same area has
Certain association, substantially such situation, the area Zhong Tai of the present invention phase recognition methods are by calculating any single-phase electric meter in platform area
The voltage degree of association between summary table three-phase voltage respectively, and will be total corresponding to the most relevance degree in all degrees of association of gained
The phase voltage of table is separate as the voltage that any single-phase electric meter is connect, it is thus achieved that do not need to change existing area,
It does not need to increase the module for filling out adaptation for concentrator and each single-phase electric meter, it is only necessary to will exist based on program designed by this programme
Concentrator is upgraded, it will be able to be respectively completed it is separate to the connect voltage of single-phase electric meter each in platform area accurately identify, effectively
The cost for realizing platform area phase identification is saved.
Detailed description of the invention
Fig. 1 is the platform area phase recognition methods flow diagram based on the degree of association in the present embodiment.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figure 1, the platform area phase recognition methods in the present embodiment based on the degree of association, are used for concentrator, summary table and M
A single-phase electric meter is formed by platform area phase identification system, is somebody's turn to do the platform area phase recognition methods based on the degree of association and includes the following steps
1~step 7:
Step 1, concentrator acquires the three-phase of the summary table simultaneously respectively according to prefixed time interval within a preset period of time
The voltage data of voltage value and any single-phase electric meter, the corresponding three-phase voltage value set for obtaining summary table are any single-phase with this
The voltage value set of ammeter；Wherein, preset time period herein is labeled as Y, and prefixed time interval is labeled as W, and concentrator is at this
Acquisition total degree in preset time period Y is labeled as N, Indicate logarithmIt is rounded downwards；The concentrator
UA is labeled as in the A phase voltage value of the summary table of X time acquisitionX, B phase voltage value label of the concentrator in the summary table of X time acquisition
For UBX, concentrator is labeled as UC in the C phase voltage value of the summary table of X time acquisitionX；Any single-phase electric meter is M single-phase electric meter
In m-th of single-phase electric meter, concentrator is labeled as Um in the voltage value of m-th of single-phase electric meter of X time acquisitionX；1≤m≤
M, 1≤X≤N；
Step 2, using the single-phase electric meter voltage value of concentrator one acquisition in office as reference sequences, and in conjunction with this
The three-phase voltage value of the primary corresponding summary table acquired, be calculated it is corresponding this any time based on the single-phase electric meter voltage value
Difference sequence, and obtain corresponding to total difference sequence based on the single-phase electric meter voltage value of all times of collection；Where it is assumed that the concentration
Device is Um in the single-phase electric meter voltage value that i-th acquiresi, the poor sequence based on the single-phase electric meter voltage value of the corresponding i-th
Column are labeled as Si, Si={ △1(i),△2(i),△3(i) }, corresponding all times of collection based on the single-phase electric meter voltage value
Total difference sequence is labeled as S, S={ Si}:
For example, it is assumed that acquisition total degree N=5 of the concentrator in preset time period Y, what concentrator was acquired at the 2nd time
The single-phase electric meter voltage value is Um2, corresponding 2nd difference sequence based on the single-phase electric meter voltage value is labeled as S2, S2=
{△1(2),△2(2),△3(2)}；Wherein:
Total difference sequence based on the single-phase electric meter voltage value of corresponding all times of collection is labeled as S, S={ S1,S2,S3,
S4,S5}={ △1(1),△2(1),△3(1),…,△1(5),△2(5),△3(5)}；
Step 3, the maximum value in total difference sequence S and the minimum value in total difference sequence S are obtained；Wherein, total poor sequence
The maximum value arranged in S is labeled as △max, the minimum value in total difference sequence S is labeled as △min:
△max=max (△1(1),△2(1),△3(1) ..., △1(N),△2(N),△3(N))；
△min=min (△1(1),△2(1),△3(1) ..., △1(N),△2(N),△3(N))；
Step 4, calculate concentrator single-phase electric meter voltage value collected each time respectively with the three-phase of corresponding summary table
Incidence coefficient between voltage value；Wherein, the single-phase electric meter voltage value Um that the concentrator is acquired in i-thiWith it is corresponding
The A phase voltage value UA of summary tablei, B phase voltage value UBiAnd C phase voltage value UCiBetween incidence coefficient be respectively labeled as γ (UAi,
Umi)、γ(UBi,Umi) and γ (UCi,Umi):
δ is resolution ratio, and δ ∈ [0,1]；
Assuming that the maximum value △ in total difference sequence S obtained by step 3max=△2(1), it is assumed that in total difference sequence S obtained by step 3
Minimum value △min=△3(5)；It corresponds in the step 4, the single-phase electric meter voltage value Um that concentrator is acquired at the 2nd time2With
The A phase voltage value UA of corresponding summary table2, B phase voltage value UB2And C phase voltage value UC2Between incidence coefficient be respectively labeled as
γ(UA2,Um2)、γ(UB2,Um2) and γ (UC2,Um2):
Certainly, the resolution ratio δ in the present embodiment is preferably arranged to δ=0.5
Step 5, calculate the single-phase electric meter voltage value that the concentrator has acquired respectively with corresponding summary table three-phase voltage value
Between the degree of association；Wherein, the single-phase electric meter voltage value Um which has acquired is electric with the A phase of the corresponding summary table respectively
The degree of association is respectively labeled as γ (UA, Um), γ (UB, Um) and γ between pressure value UA, B phase voltage value UB and C phase voltage value UC
(UC, Um):
Specifically, it still explains by taking N=5 as an example, the single-phase electric meter voltage value Um difference which has acquired
The degree of association is respectively labeled as γ between A phase voltage value UA, the B phase voltage value UB and C phase voltage value UC of the corresponding summary table
(UA, Um), γ (UB, Um) and γ (UC, Um):
Step 6, the most relevance angle value in multilevel iudge step 5 in all degrees of association of gained, and by the most relevance degree
The voltage that the phase voltage of summary table corresponding to value is connect as the single-phase electric meter is separate；Wherein, which is labeled as
γmax: γmax=max (γ (UA, Um), γ (UB, Um), γ (UC, Um))；
For example, it is assumed that through for all degree of association (three total) γ (UA, Um), γ (UB, Um) and γ (UC, Um) ratios
After judgement, the most relevance degree γ in all degrees of association is determinedmax=γ (UB, Um), then will be in the step 6 in the present embodiment
(i.e. this m-th single-phase as the single-phase electric meter for middle phase voltage by summary table corresponding to degree of association γ (UB, Um), i.e. B phase voltage
Ammeter) voltage that is connect is separate；
Step 7, in the way of step 1~step 6, the voltage that remaining M-1 single-phase electric meter is connect successively is respectively obtained
It is separate.
Certainly, in order to further increase be directed to the voltage that is connect of single-phase electric meter it is separate determine as a result, in the present embodiment should
Platform area phase recognition methods based on the degree of association further include: be directed to any single-phase electric meter, execute step 1~step by being repeated several times
Rapid 6, it is corresponding to obtain for the separate multiple judgements of any connect voltage of single-phase electric meter as a result, and by the multiple judgement result
In the voltage with maximum times it is separate as currently any connect voltage of single-phase electric meter separate final judgement result.
Certainly, as another effective improved procedure, it can also be directed to any single-phase electric meter, by according to default detection
Identification number repeats step 1~step 6, corresponding to obtain the multiple judgements separate for any connect voltage of single-phase electric meter
As a result, and judge this it is multiple determine results voltage it is separate inconsistent when, execute alarm prompt.For example, default inspection herein
Identification number is surveyed to be set as 3 times.
Although the preferred embodiment of the present invention has been described in detail above, it is to be clearly understood that for this field
Technical staff for, the invention may be variously modified and varied.Done within the spirit and principles of the present invention
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. the platform area phase recognition methods based on the degree of association are formed by platform area for concentrator, summary table and M single-phase electric meter
Phase identification system, which is characterized in that the platform area phase recognition methods based on the degree of association include the following steps 1~step 7:
Step 1, the concentrator acquires the three-phase of the summary table simultaneously respectively according to prefixed time interval within a preset period of time
The voltage data of voltage value and any single-phase electric meter, the corresponding three-phase voltage value set for obtaining the summary table are any with this
The voltage value set of single-phase electric meter；Wherein, the preset time period is labeled as Y, and the prefixed time interval is labeled as W, described
Acquisition total degree of the concentrator in the preset time period is labeled as N；A phase electricity of the concentrator in the summary table of X time acquisition
Pressure value is labeled as UAX, the concentrator is labeled as UB in the B phase voltage value of the summary table of X time acquisitionX, the concentrator is in X
The C phase voltage value of the summary table of secondary acquisition is labeled as UCX；Described any single-phase electric meter is that m-th in M single-phase electric meter is single-phase
Ammeter, the concentrator are labeled as Um in the voltage value of m-th of single-phase electric meter of X time acquisitionX；1≤m≤M, 1≤X≤N； Indicate logarithmIt is rounded downwards；
Step 2, using the single-phase electric meter voltage value of concentrator one acquisition in office as reference sequences, and combine this any
The corresponding any difference based on the single-phase electric meter voltage value is calculated in the three-phase voltage value of the secondary corresponding summary table acquired
Sequence, and obtain corresponding to total difference sequence based on the single-phase electric meter voltage value of all times of collection；Where it is assumed that the concentration
Device is Um in the single-phase electric meter voltage value that i-th acquiresi, the poor sequence based on the single-phase electric meter voltage value of the corresponding i-th
Column are labeled as Si, Si={ △1(i),△2(i),△3(i) }, corresponding all times of collection based on the single-phase electric meter voltage value
Total difference sequence is labeled as S, S={ Si}:
Step 3, the maximum value in total difference sequence and the minimum value in total difference sequence are obtained；Wherein, described total poor
Maximum value in sequence is labeled as △max, the minimum value in total difference sequence is labeled as △min:
△max=max (△1(1),△2(1),△3(1) ..., △1(N),△2(N),△3(N))；
△min=min (△1(1),△2(1),△3(1) ..., △1(N),△2(N),△3(N))；
Step 4, calculate concentrator single-phase electric meter voltage value collected each time respectively with the three-phase voltage of corresponding summary table
Incidence coefficient between value；Wherein, the single-phase electric meter voltage value Um that the concentrator is acquired in i-thiWith corresponding summary table
A phase voltage value UAi, B phase voltage value UBiAnd C phase voltage value UCiBetween incidence coefficient be respectively labeled as γ (UAi,Umi)、
γ(UBi,Umi) and γ (UCi,Umi):
δ is resolution ratio, and δ ∈ [0,1]；
Step 5, calculate the single-phase electric meter voltage value that the concentrator has acquired respectively with the corresponding summary table three-phase voltage
The degree of association between value；Wherein, the single-phase electric meter voltage value Um that the concentrator has acquired respectively with the corresponding summary table
A phase voltage value UA, B phase voltage value UB and C phase voltage value UC between the degree of association be respectively labeled as γ (UA, Um), γ (UB,
) and γ (UC, Um) Um:
Step 6, the most relevance angle value in multilevel iudge step 5 in all degrees of association of gained, and by the most relevance angle value institute
The voltage that the phase voltage of corresponding summary table is connect as the single-phase electric meter is separate；Wherein, the most relevance angle value is labeled as
γmax: γmax=max (γ (UA, Um), γ (UB, Um), γ (UC, Um))；
Step 7, in the way of step 1~step 6, it is separate successively to respectively obtain the voltage that remaining M-1 single-phase electric meter is connect.
2. the platform area phase recognition methods based on the degree of association according to claim 1, which is characterized in that in the step 4
Resolution ratio δ=0.5.
3. the platform area phase recognition methods based on the degree of association according to claim 1, which is characterized in that further include: it is directed to and appoints
One single-phase electric meter executes step 1~step 6 by being repeated several times, corresponding to obtain for any connect voltage phase of single-phase electric meter
Other multiple judgements in the multiple judgement result as a result, and will have the voltage of maximum times separate as current any list
The separate final judgement result of the connect voltage of phase ammeter.
4. the platform area phase recognition methods based on the degree of association according to claim 1, which is characterized in that further include: it is directed to and appoints
One single-phase electric meter, it is corresponding to obtain for any list by identifying that number repeats step 1~step 6 according to default detection
The separate multiple judgements of the connect voltage of phase ammeter as a result, and judge it is the multiple determine result voltage it is separate inconsistent when,
The step of executing alarm prompt.
5. the platform area phase recognition methods based on the degree of association according to claim 4, which is characterized in that the default detection is known
Other number is 3 times.
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| CN110082595A (en) * | 2019-06-17 | 2019-08-02 | 鼎信信息科技有限责任公司 | Phase recognition methods, device and the computer equipment of resident's single-phase electric energy meter |
| CN110146743A (en) * | 2019-04-30 | 2019-08-20 | 国网江苏省电力有限公司电力科学研究院 | A kind of area's phase recognition methods |
| CN110412365A (en) * | 2019-08-21 | 2019-11-05 | 广东电网有限责任公司 | Distribution low-voltage customer load Cha Xiangyi |
| CN113075475A (en) * | 2021-03-24 | 2021-07-06 | 南方电网科学研究院有限责任公司 | Phase-splitting identification method, device, terminal and storage medium for electric energy meters in transformer area |
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