CN110210738A - A kind of power supply reliability analysis method and its system - Google Patents
A kind of power supply reliability analysis method and its system Download PDFInfo
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Abstract
The present invention provides a kind of power supply reliability analysis method and its system, readable storage medium storing program for executing, and the method includes obtaining voltage dip event information, user power utilization information and system power supply information；Voltage dip interruption duration is determined according to the voltage dip event information；The equivalent customer interrupted number of temporarily drop power failure caused by determining voltage dip according to the user power utilization information and the system power supply information；Temporarily drop power off time is determined according to the temporary drop equivalent customer interrupted number information of power failure and the voltage dip interruption duration；It is determined according to the user power utilization information and continues power off time；According to the average power off time of user for continuing power-off event and the determining meter of the temporary drop power off time and voltage dip.The present invention can accurately analyze power supply system and consider the power supply reliability that voltage dip has a power failure, to provide foundation to solve Problem of Voltage Temporary-Drop.
Description
Technical field
The present invention relates to technical field of electric power, in particular to a kind of power supply reliability analysis method and its system.
Background technique
Power supply reliability reflects power supply system to the ability of user's continued power.For a long time, power supply enterprise will hold always
Index of the continuous voltage interruption as evaluation power supply reliability.With the development of economy, precision instrument and electronic equipment have obtained extensively
General application, these equipment are very sensitive to voltage change, and power failure or voltage effective value decline in short-term often will cause equipment
It is not normally functioning, the accidents such as shutdown occurs, cause heavy economic losses.Increasing and match with user's power distribution automation equipment
Topological structure of electric develops towards short distance, highdensity direction, and the influence of voltage transient variation is increasing.What voltage dip occurred
The frequency is much higher than sustained interruption, while it is also small unlike sustained interruption to the harm of user's bring.With socio-economic development
With power management techniques progress, on the basis of providing continuous power supply for user, power quality is becoming for electric system
The importance of electric power safety reliable power supply.
Summary of the invention
Present invention aims at propose a kind of power supply reliability analysis method and its system, computer equipment, computer
Readable storage medium storing program for executing, accurate power supply system of analyzing consider the power supply reliability that voltage dip has a power failure, to be solution voltage dip
Problem provides foundation.
In order to achieve the object of the present invention, according in a first aspect, the embodiment of the present invention provides a kind of power supply reliability analysis side
Method includes the following steps:
Obtain voltage dip event information, user power utilization information and system power supply information；
Voltage dip interruption duration is determined according to the voltage dip event information；
Temporarily drop power failure caused by determining voltage dip according to the user power utilization information and the system power supply information is equivalent
Customer interrupted number；
Temporarily drop is determined according to the temporary drop equivalent customer interrupted number information of power failure and the voltage dip interruption duration
Power off time；
It is determined according to the user power utilization information and continues power off time；
Averagely had a power failure according to the user for continuing power-off event and the determining meter of the temporary drop power off time and voltage dip
Time.
Wherein, the voltage dip event information includes voltage dip time started, voltage dip power failure turnaround time, electricity
The same day current data of route temporarily drops in pressure；
It is described to determine that voltage dip interruption duration specifically uses following formula according to the voltage dip event information
Carry out calculating determination:
Voltage dip interruption duration=voltage dip recovery time-voltage dip time started；
Wherein, be down in five minutes when feeder current 70% and it is following at the time of for voltage dip time started, feeder line
Current value restore to voltage dip before 70% at the time of for the voltage dip service restoration time.
Wherein, the user power utilization information includes user capacity information and total number of users information；The system power supply information
Including nominal voltage information and system power supply amount information；
It is described voltage dip is determined according to the user power utilization information and the system power supply information caused by temporarily drop have a power failure
Equivalent customer interrupted number specifically carries out calculating determination using following formula:
Overall system capacity=∑ user capacity；
Average size=overall system capacity/total number of users per family；
Prior year, which carries, holds ratio=system power supply amount/overall system capacity/8760；
Temporarily drop has a power failure equivalent customer interrupted number=1.732 × nominal voltage × temporary drop front and back current variation value/last year
Degree, which carries, holds the average size of ratio/per family；
Wherein, current variation value carries out really according to the same day current data of the voltage dip route before and after the temporary drop
It is fixed.
Wherein, described according to the temporary drop equivalent customer interrupted number information of power failure and the voltage dip interruption duration
Determine that temporarily drop power off time specifically carries out calculating determination using following formula:
Voltage dip power off time=∑ (temporarily drop has a power failure equivalent customer interrupted number × voltage dip duration every time)/use
Family sum.
Wherein, the user power utilization information includes customer interrupted number information and interruption duration information；
It is described to determine that continuing power off time specifically carries out calculating determination using following formula according to the user power utilization information:
Continue power off time=∑ (each customer interrupted number × each interruption duration)/total number of users.
Wherein, described according to the user for continuing power-off event and the determining meter of the temporary drop power off time and voltage dip
Average power off time specifically carries out calculating determination using following formula:
Power off time temporarily drops in average power off time of user=continuing power off time+.
According to second aspect, the embodiment of the present invention provides a kind of is for realizing user's Voltage Sag Analysis method
System, the system comprises:
Information acquisition unit, for obtaining voltage dip event information, user power utilization information and system power supply information；
First processing units, for determining voltage dip interruption duration according to the voltage dip event information；
The second processing unit, for determining that voltage dip is made according to the user power utilization information and the system power supply information
At temporary drop have a power failure equivalent customer interrupted number；
Third processing unit, for being had a power failure according to the temporary drop equivalent customer interrupted number information of power failure and the voltage dip
Duration determines temporarily drop power off time；
Fourth processing unit continues power off time for determining according to the user power utilization information；
5th processing unit, based on being determined according to the lasting power-off event and the temporary drop power off time and voltage is temporary
The average power off time of user of drop.
According to the third aspect, the embodiment of the present invention provides a kind of computer equipment, including memory, processor and is stored in
On memory and the computer program that can run on a processor, the processor realize that the power supply can when executing described program
By property analysis method.
According to fourth aspect, the embodiment of the present invention provides a kind of computer readable storage medium, is stored thereon with computer
Program, when which is executed by processor, to realize the power supply reliability analysis method.
Beneficial effects of the present invention:
The thinking that present invention combination Custom interruption cost assesses equivalent customer interrupted proposes a kind of power supply reliability analysis
Method and its system, computer equipment and computer readable storage medium can accurately analyze power supply system and consider voltage dip
The power supply reliability of power failure is horizontal, provides support to solve the problems, such as to improve power supply reliability, so that economic loss is effectively reduced, it is right
Existing electric energy quality monitoring system is a big supplement, is of great practical significance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of power supply reliability analysis method flow chart described in the embodiment of the present invention one.
Fig. 2 is a kind of power supply reliability analysis system schematic described in the embodiment of the present invention two.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear and complete
Ground description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
Its embodiment, shall fall within the protection scope of the present invention.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show with closely related structure and/or processing step according to the solution of the present invention, and be omitted little with relationship of the present invention
Other details.
The embodiment of the present invention provides a kind of power supply reliability analysis method, includes the following steps:
Step S1 obtains voltage dip event information, user power utilization information and system power supply information；
Step S2 determines voltage dip interruption duration according to the voltage dip event information；
Step S3, temporarily drop is stopped caused by determining voltage dip according to the user power utilization information and the system power supply information
Electrical equivalent customer interrupted number；
Step S4, it is true according to the temporary drop equivalent customer interrupted number information of power failure and the voltage dip interruption duration
Fixed temporarily drop power off time；
Step S5 is determined according to the user power utilization information and is continued power off time；
Step S6 is flat according to the user for continuing power-off event and the determining meter of the temporary drop power off time and voltage dip
Equal power off time.
Specifically, can accurately determine power supply system power supply reliability according to the average power off time of user.
Wherein, the voltage dip event information includes voltage dip time started, voltage dip power failure turnaround time, electricity
The same day current data of route temporarily drops in pressure；
The step S2 specifically carries out calculating determination using following formula:
Voltage dip interruption duration=voltage dip recovery time-voltage dip time started；
Wherein, be down in five minutes when feeder current 70% and it is following at the time of for voltage dip time started, feeder line
Current value restore to voltage dip before 70% at the time of for the voltage dip service restoration time.
Wherein, the user power utilization information includes user capacity information and total number of users information；The system power supply information
Including nominal voltage information and system power supply amount information；
The step S3 specifically carries out calculating determination using following formula:
Overall system capacity=∑ user capacity；
Average size=overall system capacity/total number of users per family；
Prior year, which carries, holds ratio=system power supply amount/overall system capacity/8760；
Temporarily drop has a power failure equivalent customer interrupted number=1.732 × nominal voltage × temporary drop front and back current variation value/last year
Degree, which carries, holds the average size of ratio/per family；
Wherein, current variation value carries out really according to the same day current data of the voltage dip route before and after the temporary drop
It is fixed.
Wherein, the step S4 specifically carries out calculating determination using following formula:
Voltage dip power off time=∑ (temporarily drop has a power failure equivalent customer interrupted number × voltage dip duration every time)/use
Family sum.
Wherein, the equivalent customer interrupted number of temporary drop power failure can be according to formula above every time: the equivalent power failure of temporarily drop power failure
The drop front and back current variation value/prior year of number of users=1.732 × nominal voltage × temporarily, which carries, to be held the average size of ratio/per family and is calculated
It obtains.
Wherein, the user power utilization information includes customer interrupted number information and interruption duration information；
The step S5 specifically carries out calculating determination using following formula:
Continue power off time=∑ (each customer interrupted number × each interruption duration)/total number of users.
Wherein, the step S6 specifically carries out calculating determination using following formula:
Power off time temporarily drops in average power off time of user=continuing power off time+.
As shown in Fig. 2, second embodiment of the present invention provides a kind of user's Voltage Sag Analysis systems, for realizing embodiment
The system of one user's Voltage Sag Analysis method, the system comprises:
Information acquisition unit 1, for obtaining voltage dip event information, user power utilization information and system power supply information；
First processing units 2, for determining voltage dip interruption duration according to the voltage dip event information；
The second processing unit 3, for determining voltage dip according to the user power utilization information and the system power supply information
Caused by temporarily drop have a power failure equivalent customer interrupted number；
Third processing unit 4, for being stopped according to the temporary drop equivalent customer interrupted number information of power failure and the voltage dip
The electric duration determines temporarily drop power off time；
Fourth processing unit 5 continues power off time for determining according to the user power utilization information；
5th processing unit 6, by being continued based on power-off event and temporary drop power off time determination and voltage according to described
The average power off time of user temporarily dropped.
It should be noted that system described in the present embodiment two is corresponding with one the method for embodiment, system described in embodiment two
The other parts not being described in detail see one the method for embodiment and obtain, and details are not described herein again.
The embodiment of the present invention three provides a kind of computer equipment, including memory, processor and storage are on a memory simultaneously
The computer program that can be run on a processor, the processor realize that power supply described in embodiment one is reliable when executing described program
Property analysis method.
The embodiment of the present invention four provides a kind of computer readable storage medium, is stored thereon with computer program, the program
When being executed by processor, to realize power supply reliability analysis method described in embodiment one.
By the description of above embodiments it is found that present invention combination Custom interruption cost assesses the thinking of equivalent customer interrupted
A kind of power supply reliability analysis method and its system, computer equipment and computer readable storage medium are proposed, it can be accurate
It is horizontal to analyze the power supply reliability that power supply system considers that voltage dip has a power failure, provides branch to solve the problems, such as to improve power supply reliability
It holds, so that economic loss be effectively reduced, is a big supplement to existing electric energy quality monitoring system, there is highly important reality
Meaning.
Algorithm and display are not inherently related to any particular computer, virtual system, or other device provided herein.
Various general-purpose systems can also be used together with teachings based herein.As described above, it constructs required by this kind of system
Structure be obvious.In addition, the present invention is also not directed to any particular programming language.It should be understood that can use various
Programming language realizes summary of the invention described herein, and the description done above to language-specific is to disclose this hair
Bright preferred forms.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of the various inventive aspects,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
Shield the present invention claims features more more than feature expressly recited in each claim.More precisely, as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself
All as a separate embodiment of the present invention.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments in this include institute in other embodiments
Including certain features rather than other feature, but the combination of the feature of different embodiment means in the scope of the present invention
Within and form different embodiments.For example, in the following claims, embodiment claimed it is any it
One can in any combination mode come using.
Various component embodiments of the invention can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.In the unit claims listing several devices, several in these devices can be through the same hardware branch
To embody.The use of word first, second, and third does not indicate any sequence.These words can be explained and be run after fame
Claim.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (9)
1. a kind of power supply reliability analysis method, which comprises the steps of:
Obtain voltage dip event information, user power utilization information and system power supply information；
Voltage dip interruption duration is determined according to the voltage dip event information；
The equivalent power failure of temporarily drop power failure caused by determining voltage dip according to the user power utilization information and the system power supply information
Number of users；
Determine that temporarily drop has a power failure according to the temporary drop equivalent customer interrupted number information of power failure and the voltage dip interruption duration
Time；
It is determined according to the user power utilization information and continues power off time；
According to the average power off time of user for continuing power-off event and the determining meter of the temporary drop power off time and voltage dip.
2. power supply reliability analysis method according to claim 1, which is characterized in that the voltage dip event information packet
Include the voltage dip time started, voltage dip have a power failure turnaround time, voltage dip route same day current data；
It is described to determine that voltage dip interruption duration is specifically carried out using following formula according to the voltage dip event information
It calculates and determines:
Voltage dip interruption duration=voltage dip recovery time-voltage dip time started；
Wherein, be down in five minutes when feeder current 70% and it is following at the time of for voltage dip time started, feeder current
It is the voltage dip service restoration time at the time of value is restored to 70% before voltage dip.
3. power supply reliability analysis method according to claim 2, which is characterized in that the user power utilization information includes using
Family capacity information and total number of users information；The system power supply information includes nominal voltage information and system power supply amount information；
It is described voltage dip is determined according to the user power utilization information and the system power supply information caused by temporarily drop have a power failure it is equivalent
Customer interrupted number specifically carries out calculating determination using following formula:
Overall system capacity=∑ user capacity；
Average size=overall system capacity/total number of users per family；
Prior year, which carries, holds ratio=system power supply amount/overall system capacity/8760；
Temporarily drop power failure equivalent customer interrupted number=1.732 × nominal voltage × temporary drop front and back current variation value/prior year carries
Hold the average size of ratio/per family；
Wherein, current variation value is determined according to the same day current data of the voltage dip route before and after the temporary drop.
4. power supply reliability analysis method according to claim 3, which is characterized in that described according to described temporary drop power failure etc.
Effect customer interrupted number information and the voltage dip interruption duration determine temporarily drop power off time specifically use following formula into
Row, which calculates, to be determined:
Voltage dip power off time=∑ (temporarily drop has a power failure equivalent customer interrupted number × voltage dip duration every time)/user is total
Number.
5. power supply reliability analysis method according to claim 4, which is characterized in that the user power utilization information includes stopping
Electric number of users information and interruption duration information；
It is described to determine that continuing power off time specifically carries out calculating determination using following formula according to the user power utilization information:
Continue power off time=∑ (each customer interrupted number × each interruption duration)/total number of users.
6. power supply reliability analysis method according to claim 5, which is characterized in that described according to the thing that persistently has a power failure
Part and the temporary drop power off time determine that the average power off time of user of meter and voltage dip is specifically counted using following formula
It calculates and determines:
Power off time temporarily drops in average power off time of user=continuing power off time+.
7. a kind of system for realizing any one of claim 1-6 user's Voltage Sag Analysis method, which is characterized in that
The system comprises:
Information acquisition unit, for obtaining voltage dip event information, user power utilization information and system power supply information；
First processing units, for determining voltage dip interruption duration according to the voltage dip event information；
The second processing unit, caused by determining voltage dip according to the user power utilization information and the system power supply information
The equivalent customer interrupted number of temporarily drop power failure；
Third processing unit continues for being had a power failure according to the temporary drop equivalent customer interrupted number information of power failure and the voltage dip
Time determines temporarily drop power off time；
Fourth processing unit continues power off time for determining according to the user power utilization information；
5th processing unit, by continuing power-off event and based on the temporary drop power off time determines and voltage dip according to described
Average power off time of user.
8. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor is realized when executing described program such as any claim institute in claim 1-6
The power supply reliability analysis method stated.
9. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
When row, to realize power supply reliability analysis method as claimed in any one of claims 1 to 6.
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| CN112330222A (en) * | 2020-12-01 | 2021-02-05 | 深圳供电局有限公司 | Distribution network power supply reliability analysis method and system considering voltage deviation |
| CN114202154A (en) * | 2021-11-08 | 2022-03-18 | 深圳供电局有限公司 | Power supply reliability quantification method and device, computer equipment and storage medium |
| CN114236310A (en) * | 2021-12-08 | 2022-03-25 | 深圳供电局有限公司 | Power distribution network cable fault assessment method and system |
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