CN104535892B - A kind of fault detection method and equipment - Google Patents
A kind of fault detection method and equipment Download PDFInfo
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Abstract
The invention discloses a kind of fault detection method and equipment.Wherein, this method includes：Central processor equipment receives fault detect request, wherein, carry fault detection type in the fault detect request；Operational factor corresponding with the fault detection type is searched in the electric power data that the central processor equipment collects from transformer, taiwan area summary table and electric supply meter；Failure of the central processor equipment according to indicated by the operational factor found judges whether the fault detection type occur；If judging the failure for occurring indicated by the fault detection type, the central processor equipment is alerted.The present invention solves and can not prevent the technical problem that transformer breaks down in the prior art, improves the fault detection efficiency of transformer.
Description
Technical field
The present invention relates to field of power, in particular to a kind of fault detection method and equipment.
Background technology
In field of power, taiwan area refers to the supply district or region of (one) transformer, taiwan area transformer it is efficient
Stable operation is all significant in economic aspect and production aspect, and therefore, supplier of electricity needs periodically to carry out event to transformer
Barrier detection, to ensure the stable operation of transformer.And the acquisition and effective fault detect using for transformer of electric power data
With directly affecting.
At present, in production aspect, due to the support of the lack of control electric power data of distributing net platform region, therefore electric power can not be set
Standby running situation carries out effective detection.And do not have in economic aspect, the electric power data that electric power data collects to acquisition system yet
Make full use of.Because influenced by the above factor, prior art presence can not prevent the technology that transformer breaks down and ask
Topic.
For above-mentioned technical problem, effective solution is not yet proposed at present.
The content of the invention
The invention discloses a kind of fault detection method and equipment, at least to solve that transformer can not be prevented in the prior art
The technical problem to break down, improve the fault detection efficiency of transformer.
One side according to embodiments of the present invention, there is provided a kind of fault detection method, including：Central processor equipment connects
Fault detect request is received, wherein, carry fault detection type in above-mentioned fault detect request；Above-mentioned central processor equipment from
Operation corresponding with above-mentioned fault detection type is searched in the electric power data collected on transformer, taiwan area summary table and electric supply meter
Parameter；Above-mentioned central processor equipment judges whether above-mentioned fault detection type meaning occur according to the above-mentioned operational factor found
The failure shown；If judging the failure for occurring indicated by above-mentioned fault detection type, above-mentioned central processor equipment is alerted.
When above-mentioned operational factor includes flowing through the rated current of the actual current of above-mentioned taiwan area summary table and above-mentioned transformer,
Above-mentioned central processor equipment is according to indicated by the above-mentioned operational factor found judges whether above-mentioned fault detection type occur
Failure includes：Above-mentioned central processor equipment passes through below equation computational load rate：Above-mentioned load factor=above-mentioned actual current/above-mentioned
Rated current × 100%；Above-mentioned central processor equipment judges whether above-mentioned load factor is more than first threshold, if above-mentioned load factor is big
In above-mentioned first threshold, then above-mentioned central processor equipment judges that the load factor that occurs indicated by above-mentioned fault detection type is excessive
Failure.
Include the maximum current of above-mentioned transformer output and the minimum current of above-mentioned transformer output when above-mentioned operational factor
When, above-mentioned central processor equipment is according to indicated by the above-mentioned operational factor found judges whether above-mentioned fault detection type occur
Failure include：Above-mentioned central processor equipment calculates degree of unbalancedness by below equation：Above-mentioned degree of unbalancedness=(above-mentioned maximum electricity
Stream-above-mentioned minimum current)/above-mentioned maximum current × 100%；Above-mentioned central processor equipment judges whether above-mentioned degree of unbalancedness is more than
Second Threshold, if above-mentioned degree of unbalancedness is more than above-mentioned Second Threshold, above-mentioned central processor equipment judges above-mentioned failure occur
The excessive failure of degree of unbalancedness indicated by detection type.
When above-mentioned operational factor includes the maximum voltage and minimum voltage of above-mentioned electric supply meter, wherein, above-mentioned centre
Failure of the reason equipment according to indicated by the above-mentioned operational factor found judges whether above-mentioned fault detection type occur includes：On
State central processor equipment and judge whether above-mentioned maximum voltage is more than the 3rd threshold value and whether above-mentioned minimum voltage is less than the 4th threshold
Value, wherein, the 3rd threshold value is more than the 4th threshold value；If above-mentioned maximum voltage be more than above-mentioned 3rd threshold value or it is above-mentioned most
Small voltage is less than above-mentioned 4th threshold value, then above-mentioned central processor equipment judges the electricity for occurring indicated by above-mentioned fault detection type
Press underproof failure.
When above-mentioned operational factor includes delivery and electricity sales amount, above-mentioned central processor equipment is according to the above-mentioned fortune found
The failure that row parameter judges whether to occur indicated by above-mentioned fault detection type includes：Above-mentioned central processor equipment passes through following public affairs
Formula calculates line loss per unit：Above-mentioned line loss per unit=(above-mentioned delivery-above-mentioned electricity sales amount)/above-mentioned delivery × 100%；Wherein, it is above-mentioned
Delivery is the product of the difference at the table bottom of taiwan area summary table and the first multiplying power on predetermined amount of time, and above-mentioned electricity sales amount is to above-mentioned pre-
The difference at the table bottom of each electric supply meter in section of fixing time under above-mentioned taiwan area summary table carries out summation institute with the product of the second multiplying power
Obtained value；Above-mentioned central processor equipment judges whether above-mentioned line loss per unit is more than the 5th threshold value, if above-mentioned line loss per unit is more than above-mentioned
5th threshold value, then above-mentioned central processor equipment judge to occur the excessive failure of line loss indicated by above-mentioned fault detection type.
Another aspect according to embodiments of the present invention, a kind of fault test set is additionally provided, including：Receiving unit, use
Asked in receiving fault detect, wherein, carry fault detection type in above-mentioned fault detect request；Searching unit, it is used for
Fortune corresponding with above-mentioned fault detection type is searched in the electric power data collected from transformer, taiwan area summary table and electric supply meter
Row parameter；Judging unit, for judging whether above-mentioned fault detection type meaning occur according to the above-mentioned operational factor found
The failure shown；Alarm Unit, if for the failure for judging to occur indicated by above-mentioned fault detection type, alerted.
When above-mentioned operational factor includes flowing through the rated current of the actual current of above-mentioned taiwan area summary table and above-mentioned transformer,
Above-mentioned judging unit includes：First computing module, for passing through below equation computational load rate：Above-mentioned load factor=above-mentioned reality
Electric current/above-mentioned rated current × 100%；First judge module, for judging whether above-mentioned load factor is more than first threshold, if on
State load factor and be more than above-mentioned first threshold, then judge to occur the excessive event of load factor indicated by above-mentioned fault detection type
Barrier.
Include the maximum current of above-mentioned transformer output and the minimum current of above-mentioned transformer output when above-mentioned operational factor
When, above-mentioned judging unit also includes：Second computing module, for calculating degree of unbalancedness by below equation：Above-mentioned degree of unbalancedness
=(above-mentioned maximum current-above-mentioned minimum current)/above-mentioned maximum current × 100%；Second judge module, for judge it is above-mentioned not
Whether the degree of balance is more than Second Threshold, if above-mentioned degree of unbalancedness is more than above-mentioned Second Threshold, judges above-mentioned failure inspection occur
Survey the excessive failure of degree of unbalancedness indicated by type.
When above-mentioned operational factor includes the maximum voltage and minimum voltage of above-mentioned electric supply meter, above-mentioned judging unit also wraps
Include：3rd judge module, for judging whether above-mentioned maximum voltage is more than the 3rd threshold value and whether above-mentioned minimum voltage is less than
4th threshold value, wherein, the 3rd threshold value is more than the 4th threshold value；If above-mentioned maximum voltage be more than above-mentioned 3rd threshold value or
Above-mentioned minimum voltage is less than above-mentioned 4th threshold value, then judges that the voltage that occurs indicated by above-mentioned fault detection type is underproof
Failure.
When above-mentioned operational factor includes delivery and electricity sales amount, above-mentioned judging unit also includes：3rd computing module：With
In calculating line loss per unit by below equation：Above-mentioned line loss per unit=(above-mentioned delivery-above-mentioned electricity sales amount)/above-mentioned delivery ×
100%；Wherein, above-mentioned delivery is the product of the difference at the table bottom of taiwan area summary table and the first multiplying power on predetermined amount of time, above-mentioned
Electricity sales amount is the difference and the second multiplying power to the table bottom of each electric supply meter under above-mentioned taiwan area summary table in above-mentioned predetermined amount of time
Product carry out resulting value of summing；4th judge module, for judging whether above-mentioned line loss per unit is more than the 5th threshold value, if on
State line loss per unit and be more than above-mentioned 5th threshold value, then judge to occur the excessive failure of line loss indicated by above-mentioned fault detection type.
In embodiments of the present invention, by the electric power data that is collected from transformer, taiwan area summary table and electric supply meter
Operational factor corresponding with fault detection type is searched, and the detection class that breaks down is judged whether according to the operational factor found
Failure indicated by type, the technical problem that transformer breaks down can not be prevented in the prior art by solving, and improve transformer
Fault detection efficiency.Further, in an embodiment of the present invention, the electric power data collected includes transformer and transformer downstream
Taiwan area summary table and electric supply meter in electric power data, so that for judging that the taiwan area of transformer or transformer downstream is total
Table or the electric power data of electric supply meter failure are not to come solely from transformer or are not to come solely from taiwan area summary table, so as to further
Improve transformer or the taiwan area summary table in transformer downstream or the fault detection efficiency of electric supply meter.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of schematic flow sheet of optional fault detection method according to embodiments of the present invention；
Fig. 2 is the schematic flow sheet of the optional fault detection method of another kind according to embodiments of the present invention；
Fig. 3 is the schematic flow sheet of another optional fault detection method according to embodiments of the present invention；
Fig. 4 is the schematic flow sheet of another optional fault detection method according to embodiments of the present invention；
Fig. 5 is the schematic flow sheet of another optional fault detection method according to embodiments of the present invention；
Fig. 6 is a kind of structural representation of optional fault test set according to embodiments of the present invention；
Fig. 7 is the structural representation of the optional fault test set of another kind according to embodiments of the present invention；
Fig. 8 is the structural representation of another optional fault test set according to embodiments of the present invention；
Fig. 9 is the structural representation of another optional fault test set according to embodiments of the present invention；And
Figure 10 is the structural representation of another optional fault test set according to embodiments of the present invention.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the model that the present invention protects
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
Embodiment 1
According to embodiments of the present invention, there is provided a kind of fault detection method, as shown in figure 1, this method includes：
S102：Central processor equipment receives fault detect request, wherein, carry fault detect in fault detect request
Type；
S104：:Searched in the electric power data that central processor equipment collects from transformer, taiwan area summary table and electric supply meter
Operational factor corresponding with fault detection type；
S106：Central processor equipment is according to indicated by the operational factor found judges whether failure detection type
Failure；
S108：If judging the failure indicated by failure detection type, central processor equipment is alerted.
Alternatively, the mode that central processor equipment is alerted can be, but not limited to be directly to send announcement on detection device
Alert prompting, or send alarm prompt in the terminal being connected with detection device by cable network or wireless network.
Alternatively, the alarm prompt that central processor equipment is sent on detection device or above-mentioned terminal can be, but not limited to
It is the image of sound, light or terminal interface, such as alarm song or warning light.
Alternatively, by searching operation ginseng corresponding with fault detection type in the electric power data that is collected from transformer
Number, and the failure according to indicated by the operational factor found judges whether failure detection type, solve prior art
In can not prevent the technical problem that transformer breaks down, improve the fault detection efficiency of transformer.Alternatively, transformer station is
The electric power facility of voltage of transformation, reception and distribution electric energy, the flow direction for controlling electric power and adjustment voltage in power system, it passes through change
Depressor gets up the grid contact of each step voltage, and transformer station can be, but not limited to be one below, including：Load-center substation, end
Hold transformer station of transformer station, primary substation, step-down substation, industrial and mineral transformer station, railroad substation and different voltage class etc..
Alternatively, taiwan area summary table is mounted in the electric power meter on low voltage distribution transformer, for calculating delivery
With the special electric energy meter of the difference of electricity sales amount, taiwan area summary table can be, but not limited to be one below, including：Triphase induction type machinery
Table, the simple multifunctional electric energy meter of three phase static formula.
Alternatively, as shown in Fig. 2 when operational factor includes flowing through the actual current of taiwan area summary table and the specified electricity of transformer
During stream, failure of the central processor equipment according to indicated by the operational factor found judges whether failure detection type includes
Following steps：
S202：Central processor equipment passes through below equation computational load rate：Load factor=actual current/rated current ×
100%；
S204：Central processor equipment judges whether load factor is more than first threshold；
S206：If load factor is more than first threshold, central processor equipment is judged indicated by failure detection type
The excessive failure of load factor.
For example, in the present embodiment, first threshold 80%, for example, the rated current of transformer is 144.34A,
The actual current for flowing through taiwan area summary table is 125A, then load factor=125A/144.34A × 100%=86.6%.
Under above-mentioned scene, central processor equipment judges that above-mentioned load factor 86.6% is more than first threshold 80%, so
Central processor equipment judges the excessive failure of the load factor indicated by failure detection type.
Alternatively, as shown in figure 3, including the maximum current of transformer output and the minimum of transformer output when operational factor
During electric current, failure bag of the central processor equipment according to indicated by the operational factor found judges whether failure detection type
Include following steps：
S302：Central processor equipment calculates degree of unbalancedness by below equation：Degree of unbalancedness=(maximum current-minimum electricity
Stream)/maximum current × 100%；
S304：Central processor equipment judges whether degree of unbalancedness is more than Second Threshold；
S306：If degree of unbalancedness is more than Second Threshold, central processor equipment judges failure detection type meaning
The excessive failure of the degree of unbalancedness shown.
For example, in the present embodiment, Second Threshold 8%, the maximum current of transformer is 125A, and minimum current is
106A, then degree of unbalancedness=(125-106)/125 × 100%=15.2%.
Under above-mentioned scene, central processor equipment judges that degree of unbalancedness 15.2% is more than Second Threshold 8%, so central
Processing equipment judges the excessive failure of the degree of unbalancedness indicated by failure detection type.
Alternatively, as shown in figure 4, when operational factor includes the maximum voltage and minimum voltage of electric supply meter, wherein, in
Failure of the processing equipment according to indicated by the operational factor found judges whether failure detection type is entreated to include following step
Suddenly：
S402：Central processor equipment judges whether maximum voltage is more than the 3rd threshold value and whether minimum voltage is less than the 4th
Threshold value, wherein, the 3rd threshold value is more than the 4th threshold value；
S404：If maximum voltage is more than the 3rd threshold value or minimum voltage is less than the 4th threshold value, central processor equipment is sentenced
Break and the underproof failure of voltage indicated by failure detection type.
For example, in the present embodiment, the 3rd threshold value is 235 (V), and the 4th threshold value is 195 (V), and actual measurement obtains
The maximum voltage of electric supply meter be 240V, minimum voltage 200V.
Under above-mentioned scene, central processor equipment judges that the maximum voltage 240V detected is more than the 3rd threshold value 235V,
So central processor equipment judges the underproof failure of voltage indicated by failure detection type.
Alternatively, as shown in figure 5, when operational factor includes delivery and electricity sales amount, central processor equipment is according to lookup
To operational factor judge whether that the failure indicated by failure detection type comprises the following steps：
S502：Central processor equipment calculates line loss per unit by below equation：Line loss per unit=(delivery-electricity sales amount)/power supply
Amount × 100%；Wherein, delivery is the product of difference and first multiplying power at the table bottom of taiwan area summary table on predetermined amount of time, sale of electricity
The product measured as the difference and the second multiplying power at the table bottom to each electric supply meter under taiwan area summary table in predetermined amount of time is asked
With resulting value；
S504：Central processor equipment judges whether line loss per unit is more than the 5th threshold value；
S506：If line loss per unit is more than the 5th threshold value, central processor equipment is judged indicated by failure detection type
The excessive failure of line loss.
In the present embodiment, delivery is the electricity of the accumulative output of taiwan area summary table, and electricity sales amount is the institute under the taiwan area summary table
There is electric supply meter to add up usage amount sum, due to line loss be present, general delivery can be more than electricity sales amount.
For example, in the present embodiment, the 5th threshold value=5%, on December 31,31 days to 2013 year December in 2012
Period, the difference at the table bottom of taiwan area summary table are 2000 (KWh), and the multiplying power (that is, the first multiplying power) on the taiwan area summary table is 10, then exists
On December 31st, 2012 to the table bottom of the delivery during 31 days December in 2013=taiwan area summary table difference × multiplying power=2000
× 10=20000 (KWh).
Include under the taiwan area summary table：3 electric supply meters, it is respectively：Electric supply meter 1, electric supply meter 2, electric supply meter 3, its
In, on December 31st, 2012 to during 31 days December in 2013, the difference at the table bottom of electric supply meter 1 is 500 (KWh), user
The multiplying power (that is, the second multiplying power) of ammeter 1 is 10, and the difference at the table bottom of electric supply meter 2 is 100 (KWh), the multiplying power of electric supply meter 2
(that is, the second multiplying power) is 100, and the difference at the table bottom of electric supply meter 3 is 3000 (KWh), (that is, second times of the multiplying power of electric supply meter 3
Rate) be 1, then in the difference on December 31st, 2012 to the table bottom of electricity sales amount=electric supply meter 1 during 31 days December in 2013
The difference at the table bottom of multiplying power+electric supply meter 3 of the difference × electric supply meter 2 at the table bottom of multiplying power+electric supply meter 2 of × electric supply meter 1
Multiplying power=500 of value × electric supply meter 3 × 10+100 × 100+3000 × 1=18000.
So, line loss per unit=(20000-18000)/20000 × 100%=10%.
Under above-mentioned scene, central processor equipment judges that line loss per unit 10% is more than the 5th threshold value 5%, such central processing
Equipment judges the excessive failure of the line loss indicated by failure detection type.
In the present embodiment, the multiplying power of above-mentioned each electric supply meter can it is different or can with identical, the present embodiment to this not
Limit.
Embodiment 2
According to embodiments of the present invention, there is provided a kind of fault test set 60, as shown in fig. 6, including：
Receiving unit 602, for receiving fault detect request, wherein, carry fault detect in fault detect request
Type；
Searching unit 604, for searched in the electric power data that is collected from transformer, taiwan area summary table and electric supply meter with
Operational factor corresponding to fault detection type；
Judging unit 606, for being judged whether according to the operational factor found indicated by failure detection type
Failure；
Alarm Unit 608, if for judging the failure indicated by failure detection type, alerted.
Alternatively, the mode that Alarm Unit 608 is alerted can be, but not limited to be directly to send announcement on detection device
Alert prompting, or send alarm prompt in the terminal being connected with detection device by cable network or wireless network.
Alternatively, the alarm prompt that Alarm Unit 608 is sent on detection device or above-mentioned terminal can be, but not limited to
It is the image of sound, light or terminal interface, such as alarm song or warning light.
Alternatively, searching unit 604 in the electric power data that is collected from transformer by searching and fault detection type
Corresponding operational factor, judging unit 606 is according to indicated by the operational factor found judges whether failure detection type
Failure, and warning information is sent by Alarm Unit 608.Transformation can not be prevented in the prior art by solving through the above way
The technical problem that device breaks down, improve the fault detection efficiency of transformer.
Alternatively, transformer station is voltage of transformation in power system, reception and distribution electric energy, the flow direction for controlling electric power and adjustment
The electric power facility of voltage, it is got up the grid contact of each step voltage by transformer, and transformer station can be, but not limited to be following
One of, including：Load-center substation, one-end substation, primary substation, step-down substation, industrial and mineral transformer station, railroad substation and
Transformer station of different voltage class etc..
Alternatively, taiwan area summary table is mounted in the electric power meter on low voltage distribution transformer, for calculating delivery
With the special electric energy meter of the difference of electricity sales amount, taiwan area summary table can be, but not limited to be one below, including：Triphase induction type machinery
Table, the simple multifunctional electric energy meter of three phase static formula.
Alternatively, as shown in fig. 7, when operational factor includes flowing through the actual current of taiwan area summary table and the specified electricity of transformer
During stream, judging unit 606 includes：
First computing module 702, for passing through below equation computational load rate：Load factor=actual current/rated current
× 100%；
First judge module 704, for judging whether load factor is more than first threshold, if load factor is more than first threshold,
Then judge the excessive failure of load factor indicated by failure detection type.
For example, in the present embodiment, first threshold 80%, for example, the rated current of transformer is 144.34A,
The actual current for flowing through taiwan area summary table is 125A, then the first computing module 802 be calculated load factor=125A/144.34A ×
100%=86.6%.
Under above-mentioned scene, the first judge module 704 judges that above-mentioned load factor 86.6% is more than first threshold 80%, this
The first judge module of sample 704 judges the excessive failure of the load factor indicated by failure detection type.
Alternatively, as shown in figure 8, including the maximum current of transformer output and the minimum of transformer output when operational factor
During electric current, judging unit 606 also includes：
Second computing module 802, for calculating degree of unbalancedness by below equation：Degree of unbalancedness=(maximum current-minimum
Electric current)/maximum current × 100%；
Second judge module 804, for judging whether degree of unbalancedness is more than Second Threshold, if degree of unbalancedness is more than the second threshold
Value, then judge the excessive failure of degree of unbalancedness indicated by failure detection type.
For example, in the present embodiment, Second Threshold 8%, the maximum current of transformer is 125A, and minimum current is
106A, then the second computing module 802 degree of unbalancedness=(125-106)/125 × 100%=15.2% is calculated.
Under above-mentioned scene, the second judge module 804 judges that degree of unbalancedness 15.2% is more than Second Threshold 8%, so
Second judge module 804 judges the excessive failure of the degree of unbalancedness indicated by failure detection type.
Alternatively, as shown in figure 9, when operational factor includes the maximum voltage and minimum voltage of electric supply meter, list is judged
Member 606 also includes：
3rd judge module 902, for judging whether maximum voltage is more than the 3rd threshold value and whether minimum voltage is less than
4th threshold value, wherein, the 3rd threshold value is more than the 4th threshold value；If maximum voltage is more than the 3rd threshold value or minimum voltage
Less than the 4th threshold value, then the underproof failure of voltage indicated by failure detection type is judged.
For example, in the present embodiment, the 3rd threshold value is 235 (V), and the 4th threshold value is 195 (V), and actual measurement obtains
The maximum voltage of electric supply meter be 240V, minimum voltage 200V.
Under above-mentioned scene, the 3rd judge module 902 judges that the maximum voltage 240V detected is more than the 3rd threshold value
235V, such 3rd judge module 902 judge the underproof failure of voltage indicated by failure detection type.
Alternatively, as shown in Figure 10, when operational factor includes delivery and electricity sales amount, judging unit also includes：
3rd computing module 1002：For calculating line loss per unit by below equation：Line loss per unit=(delivery-electricity sales amount)/
Delivery × 100%；Wherein, delivery is the product of the difference at the table bottom of taiwan area summary table and the first multiplying power on predetermined amount of time,
Electricity sales amount is that the product of the difference and the second multiplying power at the table bottom of each electric supply meter under taiwan area summary table in predetermined amount of time is entered
Value obtained by row summation；
4th judge module 1004, for judging whether line loss per unit is more than the 5th threshold value, if line loss per unit is more than the 5th threshold value,
Then judge the excessive failure of line loss indicated by failure detection type.
In the present embodiment, delivery is the electricity of the accumulative output of taiwan area summary table, and electricity sales amount is the institute under the taiwan area summary table
There is electric supply meter to add up usage amount sum, due to line loss be present, general delivery can be more than electricity sales amount.
For example, in the present embodiment, the 5th threshold value=5%, on December 31,31 days to 2013 year December in 2012
Period, the difference at the table bottom of taiwan area summary table are 2000 (KWh), and the multiplying power (that is, the first multiplying power) on the taiwan area summary table is 10, then exists
On December 31st, 2012 to the table bottom of the delivery during 31 days December in 2013=taiwan area summary table difference × multiplying power=2000
× 10=20000 (KWh).
Include under the taiwan area summary table：3 electric supply meters, it is respectively：Electric supply meter 1, electric supply meter 2, electric supply meter 3, its
In, on December 31st, 2012 to during 31 days December in 2013, the difference at the table bottom of electric supply meter 1 is 500 (KWh), user
The multiplying power (that is, the second multiplying power) of ammeter 1 is 10, and the difference at the table bottom of electric supply meter 2 is 100 (KWh), the multiplying power of electric supply meter 2
(that is, the second multiplying power) is 100, and the difference at the table bottom of electric supply meter 3 is 3000 (KWh), (that is, second times of the multiplying power of electric supply meter 3
Rate) be 1, then in the difference on December 31st, 2012 to the table bottom of electricity sales amount=electric supply meter 1 during 31 days December in 2013
The difference at the table bottom of multiplying power+electric supply meter 3 of the difference × electric supply meter 2 at the table bottom of multiplying power+electric supply meter 2 of × electric supply meter 1
Multiplying power=500 of value × electric supply meter 3 × 10+100 × 100+3000 × 1=18000.
So, line loss per unit=(20000-18000)/20000 × 100%=is calculated in the 3rd computing module 1002
10%.
Under above-mentioned scene, the 4th judge module 1004 judges that line loss per unit 10% is more than the 5th threshold value 5%, the such 4th
Judge module 1004 judges the excessive failure of the line loss indicated by failure detection type.
In embodiments of the present invention, by the electric power data that is collected from transformer, taiwan area summary table and electric supply meter
Operational factor corresponding with fault detection type is searched, and the detection class that breaks down is judged whether according to the operational factor found
Failure indicated by type, the technical problem that transformer breaks down can not be prevented in the prior art by solving, and improve transformer
Fault detection efficiency.Further, in an embodiment of the present invention, the electric power data collected includes transformer and transformer downstream
Taiwan area summary table and electric supply meter in electric power data, so that for judging that the taiwan area of transformer or transformer downstream is total
Table or the electric power data of electric supply meter failure are not to come solely from transformer or are not to come solely from taiwan area summary table, so as to further
Improve transformer or the taiwan area summary table in transformer downstream or the fault detection efficiency of electric supply meter.It is it should be noted that right
In foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as to a series of combination of actions, but this area skill
Art personnel should know, the present invention is not limited by described sequence of movement, because according to the present invention, some steps can be with
Carry out using other orders or simultaneously.Secondly, those skilled in the art should also know, embodiment described in this description
Alternative embodiment is belonged to, necessary to involved action and the module not necessarily present invention.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, and the computer software product is logged in a typing
In medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, calculate
Machine, server, or network equipment etc.) method that performs user profile typing described in each embodiment of the present invention.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
If the integrated unit in above-described embodiment is realized in the form of SFU software functional unit and is used as independent product
Sale or in use, the typing medium that above computer can be read can be logged in.Based on such understanding, skill of the invention
The part or all or part of the technical scheme that art scheme substantially contributes to prior art in other words can be with soft
The form of part product is embodied, and the computer software product is logged in typing medium, including some instructions are causing one
Platform or multiple stage computers equipment (can be personal computer, server or network equipment etc.) perform each embodiment institute of the present invention
State all or part of step of method.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in some embodiment
The part of detailed description, it may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed client, can be by others side
Formula is realized.Wherein, device embodiment described above is only schematical, such as the division of the unit, and only one
Kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Another system is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed it is mutual it
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
Connect, can be electrical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
- A kind of 1. fault detection method, it is characterised in that including：Central processor equipment receives fault detect request, wherein, carry fault detection type in the fault detect request；In the electric power data that the central processor equipment collects from transformer, taiwan area summary table and electric supply meter search with it is described Operational factor corresponding to fault detection type；The central processor equipment judges whether the fault detection type meaning occur according to the operational factor found The failure shown；If judging the failure for occurring indicated by the fault detection type, the central processor equipment is alerted；Wherein, the operational factor includes：Flow through the actual current of the taiwan area summary table and the rated current of the transformer, institute State the maximum current of transformer output and minimum current, the maximum voltage and minimum of the electric supply meter of transformer output Voltage or delivery and electricity sales amount；When the operational factor includes delivery and electricity sales amount, the central processor equipment is joined according to the operation found The failure that number judges whether to occur indicated by the fault detection type includes：The central processor equipment calculates line loss per unit by below equation：The line loss per unit=(the delivery-the sale of electricity Amount)/delivery × 100%；Wherein, the delivery is the difference and first at the table bottom of taiwan area summary table on predetermined amount of time The product of multiplying power, the electricity sales amount are the table to each electric supply meter under the taiwan area summary table in the predetermined amount of time The product of the difference at bottom and the second multiplying power carries out resulting value of summing；The central processor equipment judges whether the line loss per unit is more than the 5th threshold value, if the line loss per unit is more than the 5th threshold Value, then the central processor equipment judge to occur the excessive failure of line loss indicated by the fault detection type.
- 2. according to the method for claim 1, it is characterised in that when the operational factor includes flowing through the taiwan area summary table During the rated current of actual current and the transformer, the central processor equipment judges according to the operational factor found The failure indicated by the fault detection type whether occur includes：The central processor equipment passes through below equation computational load rate：The load factor=the actual current/described specified Electric current × 100%；The central processor equipment judges whether the load factor is more than first threshold, if the load factor is more than first threshold Value, then the central processor equipment judge to occur the excessive failure of load factor indicated by the fault detection type.
- 3. according to the method for claim 1, it is characterised in that exported most when the operational factor includes the transformer When high current and the minimum current of transformer output, the central processor equipment is sentenced according to the operational factor found The disconnected failure whether occurred indicated by the fault detection type includes：The central processor equipment calculates degree of unbalancedness by below equation：The degree of unbalancedness=(the maximum current-described Minimum current)/maximum current × 100%；The central processor equipment judges whether the degree of unbalancedness is more than Second Threshold, if the degree of unbalancedness is more than described the Two threshold values, then the central processor equipment judge to occur the excessive event of degree of unbalancedness indicated by the fault detection type Barrier.
- 4. according to the method for claim 1, it is characterised in that when the operational factor includes the maximum of the electric supply meter When voltage and minimum voltage, wherein, the central processor equipment judges whether institute occur according to the operational factor found Stating the failure indicated by fault detection type includes：The central processor equipment judges whether the maximum voltage is more than the 3rd threshold value and whether the minimum voltage is less than 4th threshold value, wherein, the 3rd threshold value is more than the 4th threshold value；If the maximum voltage be more than the 3rd threshold value or The minimum voltage is less than the 4th threshold value, then the central processor equipment judges the fault detection type meaning occur The underproof failure of voltage shown.
- A kind of 5. fault test set, it is characterised in that including：Receiving unit, for receiving fault detect request, wherein, carry fault detect class in the fault detect request Type；Searching unit, for searched in the electric power data that is collected from transformer, taiwan area summary table and electric supply meter with it is described therefore Hinder operational factor corresponding to detection type；Judging unit, for judging whether occur indicated by the fault detection type according to the operational factor found Failure；Alarm Unit, if for the failure for judging to occur indicated by the fault detection type, alerted；Wherein, the operational factor includes：Flow through the actual current of the taiwan area summary table and the rated current of the transformer, institute State the maximum current of transformer output and minimum current, the maximum voltage and minimum of the electric supply meter of transformer output Voltage or delivery and electricity sales amount；When the operational factor includes delivery and electricity sales amount, the judging unit also includes：3rd computing module：For calculating line loss per unit by below equation：The line loss per unit=(the delivery-the sale of electricity Amount)/delivery × 100%；Wherein, the delivery is the difference and first at the table bottom of taiwan area summary table on predetermined amount of time The product of multiplying power, the electricity sales amount are to the table bottom of each electric supply meter under the taiwan area summary table in the predetermined amount of time The product of difference and the second multiplying power carries out resulting value of summing；4th judge module, for judging whether the line loss per unit is more than the 5th threshold value, if the line loss per unit is more than the described 5th Threshold value, then judge to occur the excessive failure of line loss indicated by the fault detection type.
- 6. equipment according to claim 5, it is characterised in that when the operational factor includes flowing through the taiwan area summary table During the rated current of actual current and the transformer, the judging unit includes：First computing module, for passing through below equation computational load rate：The load factor=the actual current/described specified Electric current × 100%；First judge module, for judging whether the load factor is more than first threshold, if the load factor is more than described first Threshold value, then judge to occur the excessive failure of load factor indicated by the fault detection type.
- 7. equipment according to claim 5, it is characterised in that exported most when the operational factor includes the transformer When high current and the minimum current of transformer output, the judging unit also includes：Second computing module, for calculating degree of unbalancedness by below equation：The degree of unbalancedness=(maximum current-the institute State minimum current)/maximum current × 100%；Second judge module, for judging whether the degree of unbalancedness is more than Second Threshold, if the degree of unbalancedness is more than described Second Threshold, then judge to occur the excessive failure of degree of unbalancedness indicated by the fault detection type.
- 8. equipment according to claim 5, it is characterised in that when the operational factor includes the maximum of the electric supply meter When voltage and minimum voltage, the judging unit also includes：3rd judge module, for judging whether the maximum voltage is more than the 3rd threshold value and whether the minimum voltage is less than 4th threshold value, wherein, the 3rd threshold value is more than the 4th threshold value；If the maximum voltage be more than the 3rd threshold value or The minimum voltage is less than the 4th threshold value, then judges that the voltage that occurs indicated by the fault detection type is underproof Failure.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105225466B (en) * | 2015-09-16 | 2019-06-11 | 安康鸿天科技开发有限公司 | A kind of transmission of data and fault detection system |
| CN106918360B (en) * | 2015-12-24 | 2021-01-12 | 研祥智能科技股份有限公司 | Automatic detection method, server, device to be detected and terminal |
| CN106680667A (en) * | 2016-12-09 | 2017-05-17 | 国网北京市电力公司 | Power equipment monitoring method, power equipment monitoring device and power equipment monitoring system |
| CN106645899A (en) * | 2016-12-29 | 2017-05-10 | 深圳前海弘稼科技有限公司 | Fault prompting method, fault prompting device, and implantation equipment |
| CN109741594B (en) * | 2018-12-20 | 2020-09-11 | 国网北京市电力公司 | Configuration method and device for equipment data acquisition |
| CN112986884B (en) * | 2021-04-15 | 2021-08-13 | 国网山东省电力公司昌邑市供电公司 | User metering multiplying power file checking method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343155A (en) * | 1991-12-20 | 1994-08-30 | The Research And Development Institute, Inc. At Montana State University | Fault detection and location system for power transmission and distribution lines |
| CN2907042Y (en) * | 2006-04-17 | 2007-05-30 | 深圳职业技术学院 | Low voltage power distribution network data monitoring and management system |
| CN102497021A (en) * | 2011-12-14 | 2012-06-13 | 广东电网公司佛山供电局 | Real-time monitoring and analysis system for distribution circuit |
| CN202474745U (en) * | 2012-03-16 | 2012-10-03 | 哈尔滨殴瑞铁科技有限公司 | Automatic cable transfer box for power distribution |
| CN103312032A (en) * | 2012-03-14 | 2013-09-18 | 国家电网公司 | Monitoring system for auxiliary equipment of substation |
| CN103869192A (en) * | 2014-03-18 | 2014-06-18 | 中国能源建设集团广东省电力设计研究院 | Smart power grid line loss detection method and system |
-
2014
- 2014-12-18 CN CN201410797835.4A patent/CN104535892B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343155A (en) * | 1991-12-20 | 1994-08-30 | The Research And Development Institute, Inc. At Montana State University | Fault detection and location system for power transmission and distribution lines |
| CN2907042Y (en) * | 2006-04-17 | 2007-05-30 | 深圳职业技术学院 | Low voltage power distribution network data monitoring and management system |
| CN102497021A (en) * | 2011-12-14 | 2012-06-13 | 广东电网公司佛山供电局 | Real-time monitoring and analysis system for distribution circuit |
| CN103312032A (en) * | 2012-03-14 | 2013-09-18 | 国家电网公司 | Monitoring system for auxiliary equipment of substation |
| CN202474745U (en) * | 2012-03-16 | 2012-10-03 | 哈尔滨殴瑞铁科技有限公司 | Automatic cable transfer box for power distribution |
| CN103869192A (en) * | 2014-03-18 | 2014-06-18 | 中国能源建设集团广东省电力设计研究院 | Smart power grid line loss detection method and system |
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