CN109217341A - A kind of appraisal procedure and system of data center's tri-phase unbalance factor - Google Patents
A kind of appraisal procedure and system of data center's tri-phase unbalance factor Download PDFInfo
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- CN109217341A CN109217341A CN201811180763.3A CN201811180763A CN109217341A CN 109217341 A CN109217341 A CN 109217341A CN 201811180763 A CN201811180763 A CN 201811180763A CN 109217341 A CN109217341 A CN 109217341A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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Abstract
The embodiment of the invention discloses the appraisal procedure and system of a kind of data center's tri-phase unbalance factor, method includes the branch current for obtaining each cabinet of data center；Each phase total current of three-phase electricity is calculated according to the branch current；Counting circuit load factor calculates maximum three-phase current unbalance degree when load factor is more than degree of unbalancedness adjustment load factor；Maximum three-phase current unbalance degree and three-phase current unbalance degree limit value are compared, judge tri-phase unbalance factor.The present invention considers influence of the load factor to three-phase imbalance, improves the service life of UOS, reduces the coefficient of UOS false alarm, improves data center's reliability of operation.
Description
Technical field
The present invention relates to data center's technical field, specifically a kind of assessment side of data center's tri-phase unbalance factor
Method and system.
Background technique
Three-phase Power Systems imbalance is mainly due to caused by three-phase load asymmetry, and single-phase load is three in power consumer
Unbalanced distribution in phase system will also result in the appearance of three-phase imbalance.
With the Large scale construction of data center's technology, three-phase imbalance problem is more and more prominent, the loss and wound to UPS
Evil is increasing, when load factor is larger, shortens UPS ((Uninterruptible Power System/
Uninterruptible Power Supply, i.e. uninterruptible power supply) service life；When load is smaller, UPS benefit will lead to
Under rate, while it will cause the false alarm of UPS tri-phase unbalance factor.
Existing tri-phase unbalance factor evaluation method is mostly to be directed to low-voltage distribution system, is also seldom answered in data center's industry
With, and conventional three-phase degree of unbalancedness evaluation method only is indiscriminately imitated, the changeable and longtime running etc. of data center's load is not considered
Feature, and influence of the load factor to tri-phase unbalance factor is not considered, whole effective examination data central negative comprehensively is not carried out
The tri-phase unbalance factor of load.
Summary of the invention
The appraisal procedure and system of a kind of data center's tri-phase unbalance factor are provided in the embodiment of the present invention, it is existing to solve
There is in technology the problem of not comprehensive examination data central loading tri-phase unbalance factor.
In order to solve the above-mentioned technical problem, the embodiment of the invention discloses following technical solutions:
First aspect present invention provides a kind of appraisal procedure of data center's tri-phase unbalance factor, comprising the following steps:
Obtain the branch current of each cabinet of data center；
Each phase total current of three-phase electricity is calculated according to the branch current；
It is uneven to calculate maximum three-phase current when load factor is more than degree of unbalancedness adjustment load factor for counting circuit load factor
Weighing apparatus degree；
Maximum three-phase current unbalance degree and three-phase current unbalance degree limit value are compared, judge three-phase imbalance
Degree.
With reference to first aspect, in a first possible implementation of that first aspect, if maximum three-phase current unbalance degree
Greater than tri-phase unbalance factor limit value, then data center issues the warning information of three-phase imbalance.
With reference to first aspect, in a second possible implementation of that first aspect, the branch current includes every phase branch
Road electric current obtains branch current by branch detection module, and sets the acquisition period of branch detection module.
With reference to first aspect, in a second possible implementation of that first aspect, calculate each phase total current it
Before, calculate the average value of branch current, the calculating process of the branch current average value are as follows:
The DC current that will acquire is sent to UPS controller DSP；
DSP takes the detection data of nearest n times, calculates the average value of branch current.
With reference to first aspect, in a second possible implementation of that first aspect, the calculating of the total current specifically:
Under current phase, with the sum of each branch current average value divided by the quantity of the connected cabinet of current phase.
With reference to first aspect, in a second possible implementation of that first aspect, the calculation formula of circuit load rate β
Are as follows:
In formula, IA、IBAnd ICRespectively indicate A phase current, B phase current and C phase current, SupsFor what is set according to UPS capacity
Parameter,It is the power-factor angle of UPS.
With reference to first aspect, in a first possible implementation of that first aspect, the maximum three-phase current unbalance
The calculation formula of degree are as follows:
Second aspect of the present invention provides a kind of assessment system of data center's tri-phase unbalance factor, the system comprises
Branch detection module, for persistently obtaining the branch current of each cabinet of data center；
Data processing module, for according to the branch current counting circuit load factor and maximum three-phase current unbalance
Degree；
Evaluation module, for comparing the maximum three-phase current unbalance degree and three-phase current unbalance degree limit value, judgement
Tri-phase unbalance factor.
In conjunction with second aspect, in second aspect in the first possible implementation, the system also includes alarm module,
For issuing the announcement of three-phase imbalance to monitoring center when maximum three-phase current unbalance degree is greater than tri-phase unbalance factor limit value
Alert information.
In conjunction with second aspect, in second of second aspect possible implementation, the data processing module includes
First computing unit, for calculating each phase total current according to branch current；
Second computing unit is used for counting circuit load factor, and when load factor is more than degree of unbalancedness adjustment load factor, meter
Calculate maximum three-phase current unbalance degree.
The assessment system of data center's tri-phase unbalance factor of second aspect of the present invention can be realized first aspect and
Method in each implementation of first aspect, and obtain identical effect.
The effect provided in summary of the invention is only the effect of embodiment, rather than invents all whole effects, above-mentioned
A technical solution in technical solution have the following advantages that or the utility model has the advantages that
Consider influence of the load factor to three-phase imbalance, is more than the factory-designed three-phase imbalance of three-phase UPS in load factor
When spending the load factor of adjustment, maximum three-phase current unbalance degree is calculated, is more than three-phase current in maximum three-phase current unbalance degree
When degree of unbalancedness limit value, to monitoring system alert, the service life of UOS is improved, reduce UOS false alarm is
Number improves data center's reliability of operation.
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, for those of ordinary skill in the art
Speech, without creative efforts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow diagram of the method for the invention embodiment；
Fig. 2 is the flow diagram of system embodiment of the present invention.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used to realize different knots of the invention
Structure.In order to simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relationship between various embodiments and/or setting is discussed.It should be noted that illustrated component is not necessarily to scale in the accompanying drawings
It draws.Present invention omits the descriptions to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.
As shown in Figure 1, the appraisal procedure of data center's tri-phase unbalance factor of the present invention the following steps are included:
S1, the branch current of branch where obtaining each cabinet of data center, and it is respectively labeled as ITA1, ITA2,
ITA3..., ITAnA；ITB1, ITB2, ITB3..., ITBnB；ITC1, ITC2, ITC3..., ITCnC, wherein ITA1Indicate cabinet 1 in A phase
Branch current, ITB1Indicate the branch current of cabinet 1 in B phase, ITC1Indicate the branch current of cabinet 1 in C phase, and so on,
NA, nB and nC respectively indicate the number that cabinet is connected in the quantity and C phase that connect cabinet in A phase in the quantity, B phase of connection cabinet
Amount.
Branch current is obtained by branch detection module, and existing equipment can be selected in branch detection module, such as An Kerui company
The model AFPM3-3AV branch detection module of production.Design detection cycle is 1min.The direct current detected shoulder to shoulder stream to
UPS internal controller DSP (Digital Signal Processing, digital signal processor), DSP takes nearest 10 branch
Road electric current is averaged, and is denoted as IA1, IA2, IA3..., IAnA；IB1, IB2, IB3..., IBnB；IC1, IC2, IC3..., ICnC；
Current average IaverCalculation formula is as follows:
Example IA1Road current average:
S2 calculates each phase total current of three-phase electricity according to subcircuits；
Each phase total current calculation formula is as follows:
S3, each phase total current obtained according to step S2, calculates load factor β at this time, and load factor β calculation formula is as follows:
In formula, IA、IBAnd ICRespectively indicate A phase current, B phase current and C phase current, SupsFor what is set according to UPS capacity
Parameter, if actual disposition UPS capacity is 100kVA, parameter SupsIt may be configured as 20-40kVA；It is the power-factor angle of UPS.
Judge whether load factor β is more than uneven adjustment load factor, if it is not, calculating terminates, if so, need further into
The calculating of row maximum three-phase current unbalance degree.
S4 calculates maximum three-phase current unbalance degree, formula are as follows:
S5, judges whether maximum three-phase current unbalance degree is greater than the three-phase current unbalance degree limitation ε of UPS calibrationmax。
S6 such as exceeds limit value εmax, then warning message is sent to monitoring system, it is proposed that Load adjustment distribution；Such as without departing from limit
Value, then no alarm, process terminate.Monitoring system is the monitoring system of entire data center, is the prior art, can be read in UPS
Data.
As shown in Fig. 2, the assessment system of data center's tri-phase unbalance factor of the present invention include branch detection module 1,
Data processing module 2, evaluation module 3 and alarm module 4.
Branch detection module 1 is for persistently obtaining the branch current of each cabinet of data center；Data processing module 2 is used for
According to the branch current counting circuit load factor and maximum three-phase current unbalance degree；Evaluation module 3 for compare it is described most
Big three-phase current unbalance degree and three-phase current unbalance degree limit value, judge tri-phase unbalance factor；Alarm module 4 is used in maximum
When three-phase current unbalance degree is greater than tri-phase unbalance factor limit value, the warning information of three-phase imbalance is issued to monitoring center.
Data processing module includes the first computing unit 21 and the second computing unit 22.
First computing unit 21 is used to calculate each phase total current according to branch current；Second computing unit 22 is for calculating electricity
Road load factor, and when load factor is more than degree of unbalancedness adjustment load factor, calculate maximum three-phase current unbalance degree.
The above is the preferred embodiment of the present invention, for those skilled in the art,
Without departing from the principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also regarded as this hair
Bright protection scope.
Claims (10)
1. a kind of appraisal procedure of data center's tri-phase unbalance factor, characterized in that the following steps are included:
Obtain the branch current of each cabinet of data center；
Each phase total current of three-phase electricity is calculated according to the branch current；
Counting circuit load factor calculates maximum three-phase current unbalance degree when load factor is more than degree of unbalancedness adjustment load factor；
Maximum three-phase current unbalance degree and three-phase current unbalance degree limit value are compared, judge tri-phase unbalance factor.
2. a kind of appraisal procedure of data center's tri-phase unbalance factor according to claim 1, characterized in that if maximum three
Phase current degree of unbalancedness is greater than tri-phase unbalance factor limit value, then data center issues the warning information of three-phase imbalance.
3. a kind of appraisal procedure of data center's tri-phase unbalance factor according to claim 1 or 2, characterized in that described
Branch current includes every phase branch current, obtains branch current by branch detection module, and set obtaining for branch detection module
Take the period.
4. a kind of appraisal procedure of data center's tri-phase unbalance factor according to claim 3, characterized in that calculating institute
Before stating each phase total current, the average value of branch current, the calculating process of the branch current average value are calculated are as follows:
The DC current that will acquire is sent to UPS controller DSP；
DSP takes the detection data of nearest n times, calculates the average value of branch current.
5. a kind of appraisal procedure of data center's tri-phase unbalance factor according to claim 4, characterized in that total electricity
The calculating of stream specifically:
Under current phase, with the sum of each branch current average value divided by the quantity of the connected cabinet of current phase.
6. a kind of appraisal procedure of data center's tri-phase unbalance factor according to claim 5, characterized in that circuit load
The calculation formula of rate β are as follows:
In formula, IA、IBAnd ICRespectively indicate A phase current, B phase current and C phase current, SupsFor the parameter set according to UPS capacity,It is the power-factor angle of UPS.
7. a kind of appraisal procedure of data center's tri-phase unbalance factor according to claim 6, characterized in that the maximum
The calculation formula of three-phase current unbalance degree are as follows:
8. a kind of assessment system of data center's tri-phase unbalance factor, characterized in that the system comprises
Branch detection module, for persistently obtaining the branch current of each cabinet of data center；
Data processing module, for according to the branch current counting circuit load factor and maximum three-phase current unbalance degree；
Evaluation module judges three-phase for comparing the maximum three-phase current unbalance degree and three-phase current unbalance degree limit value
Degree of unbalancedness.
9. a kind of assessment system of data center's tri-phase unbalance factor according to claim 8, characterized in that the system
It further include alarm module, for being sent out to monitoring center when maximum three-phase current unbalance degree is greater than tri-phase unbalance factor limit value
The warning information of three-phase imbalance out.
10. a kind of assessment system of data center's tri-phase unbalance factor according to claim 8 or claim 9, characterized in that described
Data processing module includes
First computing unit, for calculating each phase total current according to branch current；
Second computing unit is used for counting circuit load factor, and when load factor is more than degree of unbalancedness adjustment load factor, calculates most
Big three-phase current unbalance degree.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787254A (en) * | 2019-02-18 | 2019-05-21 | 石家庄科林电气股份有限公司 | A kind of switchover policy of three-phase load unbalance regulating cycle |
| CN110518604A (en) * | 2019-08-27 | 2019-11-29 | 深圳市共济科技股份有限公司 | Deployed with devices method, intelligent terminal and storage medium based on degree of balance control |
| CN111541251A (en) * | 2020-04-28 | 2020-08-14 | 国家计算机网络与信息安全管理中心 | Power distribution method and system for micro bus power supply system of data machine room |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055202A (en) * | 2011-01-21 | 2011-05-11 | 浙江浙大网新能源技术有限公司 | Three-phase balancing power-supply energy-saving control management system |
| US20130218497A1 (en) * | 2012-02-22 | 2013-08-22 | Schneider Electric USA, Inc. | Systems, methods and devices for detecting branch circuit load imbalance |
| CN104931802A (en) * | 2015-03-26 | 2015-09-23 | 广东电网有限责任公司江门供电局 | Outgoing line load three-phase integration protection, regulation and control method |
| CN107478917A (en) * | 2017-07-17 | 2017-12-15 | 国网江西省电力公司电力科学研究院 | A kind of decision method and device of taiwan area degree of unbalancedness |
-
2018
- 2018-10-09 CN CN201811180763.3A patent/CN109217341A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055202A (en) * | 2011-01-21 | 2011-05-11 | 浙江浙大网新能源技术有限公司 | Three-phase balancing power-supply energy-saving control management system |
| US20130218497A1 (en) * | 2012-02-22 | 2013-08-22 | Schneider Electric USA, Inc. | Systems, methods and devices for detecting branch circuit load imbalance |
| CN104931802A (en) * | 2015-03-26 | 2015-09-23 | 广东电网有限责任公司江门供电局 | Outgoing line load three-phase integration protection, regulation and control method |
| CN107478917A (en) * | 2017-07-17 | 2017-12-15 | 国网江西省电力公司电力科学研究院 | A kind of decision method and device of taiwan area degree of unbalancedness |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787254A (en) * | 2019-02-18 | 2019-05-21 | 石家庄科林电气股份有限公司 | A kind of switchover policy of three-phase load unbalance regulating cycle |
| CN110518604A (en) * | 2019-08-27 | 2019-11-29 | 深圳市共济科技股份有限公司 | Deployed with devices method, intelligent terminal and storage medium based on degree of balance control |
| CN111541251A (en) * | 2020-04-28 | 2020-08-14 | 国家计算机网络与信息安全管理中心 | Power distribution method and system for micro bus power supply system of data machine room |
| CN111541251B (en) * | 2020-04-28 | 2021-11-02 | 国家计算机网络与信息安全管理中心 | Power distribution method and system for micro bus power supply system of data machine room |
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Application publication date: 20190115 |