CN107093035A - A kind of comprehensive power quality analysis system of various dimensions interconnection - Google Patents
A kind of comprehensive power quality analysis system of various dimensions interconnection Download PDFInfo
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Abstract
The invention provides a kind of comprehensive power quality analysis system of various dimensions interconnection, quality of power supply event statistics module, tolerance analysis module, running trend of the equipment analysis module, probability statistical analysis module, fault waveform analysis module, fault location module and the fault diagnosis module of interconnection are indexed including list of thing module and with the list of thing module, is the comprehensive power quality analysis result that various dimensions are presented in user.The beneficial effects of the invention are as follows：The present invention gets up the analysis result of various dimensions by event tight association, index intersected with each other, can directly perceived, comprehensive analysis system quality of power supply situation, reliability is higher.
Description
Technical field
The present invention relates to the comprehensive power quality analysis system of technical field of electric power, more particularly to a kind of interconnection of various dimensions.
Background technology
Power quality analysis technology assists mainly in the quality of power supply situation of customer analysis monitoring system, understands the power supply of system
Quality, prevents from causing electrical equipment failure because of power quality problem, causes contingency or economic loss.
Most of existing power quality analysis technology analyzes quality of power supply situation from single side, mainly comprising electric energy
The changing trend diagram of the analog quantitys such as quality events statistical chart, tolerance curve, fault waveform, voltage deviation, harmonic wave.These technologies
It is difficult the real conditions that analysis understands the quality of power supply from a dimension, sometimes possibly even causes the mistake of power quality problem
Sentence.
In addition, because the analysis result of these technologies is more independent, it is impossible to associate the result of all dimensions, each other
Cross-index, it is impossible to provide the user complete, comprehensive, effective analysis result.
The content of the invention
The invention provides a kind of various dimensions interconnection comprehensive power quality analysis system, including list of thing module, with
And quality of power supply event statistics module, tolerance analysis module, the equipment fortune of interconnection are indexed with the list of thing module
Row trend analysis module, probability statistical analysis module, fault waveform analysis module, fault location module and fault diagnosis module,
The comprehensive power quality analysis result of various dimensions is presented for user.
As a further improvement on the present invention, the list of thing module is carried out with the quality of power supply event statistics module
It is corresponding in quality of power supply event statistics module when a certain bar event is selected in list of thing when cross-index is with interconnection
Case point also will synchronously be chosen, the event that can check relatively taken place frequently at which at moment and trigger value size, the quality of power supply thing
Part statistical module is, in described point form, to present transient voltage event and specify system in the period to occur point of quality of power supply event
Cloth situation.
As a further improvement on the present invention, the list of thing module carries out intersecting rope with the tolerance analysis module
When drawing with interconnection, the tolerance analysis module is used to generate tolerance curve, the tolerance curve include ITIC curves and
SEMI F47 curves, curve describes the relation of incident duration and residual voltage percentage, and event is in the form of described point in curve
Present, tolerance curve includes safety zone, case point represents that event is normal in safety zone, otherwise abnormal, works as event column
In table module a certain bar event be selected, corresponding event also will synchronously be chosen in tolerance curve, can check event whether
In safety zone, to judge whether the event of triggering is normal.
As a further improvement on the present invention, the list of thing module is carried out with the running trend of the equipment analysis module
When cross-index is with interconnection, the running trend of the equipment analysis module is used to generate running trend of the equipment figure, the equipment operation
Tendency chart carries out statistical analysis, the virtual value to the event of seclected time section internal trigger and the virtual value of specified analog quantity channel
Comprising maximum, minimum value, four kinds of statistical values of average value and P95 values, when a certain bar event is selected in list of thing module, if
Corresponding event also will synchronously be chosen in received shipment row tendency chart, can understand analysis event generation time, the running situation of equipment.
As a further improvement on the present invention, the list of thing module is intersected with the probability statistical analysis module
When index is with interconnection, the probability statistical analysis module is used for generating probability statistic histogram, and the probability statistics histogram is
Probability statistics are carried out to the virtual value for specifying analog quantity channel, histogram is depicted as, virtual value distributed area can be checked by figure
Between probability, when in list of thing module a certain bar event be selected, corresponding case point also will be same in probability statistics histogram
Step is chosen, and can check event generation time, equipment operation is in which probability interval.
As a further improvement on the present invention, when the list of thing module is associated with the fault waveform analysis module,
The fault waveform analysis module is to carry out the displaying of original waveform figure, harmonic wave, vector, order components and power features to wave file
Amount is analyzed, when choosing event, by the analysis of synchronous averaging and the event correlation fault waveform.
As a further improvement on the present invention, it is described when the list of thing module is with the fault location module relation
Fault location module be the waveform of event correlation is handled, computing, extract characteristic value, the failure of position monitor circuit away from
From, fault location function can be directly initiated by event, to monitor circuit fault distance position.
As a further improvement on the present invention, it is described when the list of thing module is associated with the fault diagnosis module
Fault diagnosis module be the waveform of event correlation is handled, computing, extract characteristic value, the event of diagnosis monitoring device or circuit
Hinder type, fault diagnosis functions can be directly initiated by event, the fault type of monitoring device or circuit is diagnosed.
As a further improvement on the present invention, the list of thing module and the quality of power supply event statistics module are logical
Event type+residual voltage+event-triggered times are crossed as Correlation Criteria, the association of two dimensional analysis results is carried out；
The list of thing module and the tolerance analysis module are by event type+residual voltage+event duration
Time, as Correlation Criteria, carries out the association of two dimensional analysis results；
The list of thing module is to be used as to associate bar by event-triggered times with running trend of the equipment analysis mould
Part, carries out the association of two dimensional analysis results；
The list of thing module and the probability statistical analysis module are to be used as Correlation Criteria by event-triggered times,
Carry out the association of two dimensional analysis results.
As a further improvement on the present invention, the list of thing module and the fault waveform analysis module are by closing
Join waveform+event-triggered times as Correlation Criteria, carry out the association of two dimensional analysis results；
The list of thing module is to be used as association by associating waveform+event-triggered times with the fault location module
Condition, carries out the association of two dimensional analysis results；
The list of thing module is to be used as association by associating waveform+event-triggered times with the fault diagnosis module
Condition, carries out the association of two dimensional analysis results；
The tolerance analysis module and the running trend of the equipment analysis module be by event type+triggered time+
Residual voltage+incident duration carries out the association of two dimensional analysis results as Correlation Criteria；
The tolerance analysis module and the probability statistical analysis module are by event type+triggered time+remnants
Voltage+incident duration carries out the association of two dimensional analysis results as Correlation Criteria；
The running trend of the equipment analysis module and the probability statistical analysis module are by analog quantity channel+separate work
For Correlation Criteria, the association of two dimensional analysis results is carried out；
Tolerance curve is analyzed with fault waveform, fault location and fault diagnosis are by associating waveform+event-triggered times
It is associated, carry out the association of multiple dimensional analysis results.
The beneficial effects of the invention are as follows：The present invention gets up the analysis result of various dimensions by event tight association, each other
Cross-index, can directly perceived, comprehensive analysis system quality of power supply situation, reliability is higher.
Brief description of the drawings
Fig. 1 is quality of power supply event statistics figure.
Fig. 2 is ITIC curve maps.
Fig. 3 is SEMI F47 curve maps.
Fig. 4 is waveform labor figure.
Fig. 5 is various dimensions interconnection comprehensive power quality analysis chart.
Fig. 6 is the theory diagram of the present invention.
Embodiment
As shown in fig. 6, in order to overcome the shortcomings of above-mentioned background technology, quality of power supply event is united the invention provides one kind
It is many that meter figure, running trend of the equipment figure, probability statistics histogram, fault waveform analysis, fault location and fault diagnosis are combined
The comprehensive power quality analysis system of dimension interconnection, both can independently analyze quality of power supply situation, again from multiple different dimensions
The analysis situation of all dimensions can be associated, index, linked each other, it is ensured that user can obtain by event
Take that system is most true, comprehensive quality of power supply condition information.
The present invention various dimensions interconnection comprehensive power quality analysis system, including list of thing module and with it is described
List of thing module is indexed the quality of power supply event statistics module, tolerance analysis module, running trend of the equipment point of interconnection
Module, probability statistical analysis module, fault waveform analysis module, fault location module and fault diagnosis module are analysed, is that user is in
The comprehensive power quality analysis result of existing various dimensions.
In figure 6, four-headed arrow represent both can active trigger event analysis, can passively receive again other functional blocks hair
The event analysis gone out；Single arrow of fault waveform analysis module, fault location module and fault diagnosis module is represented can only be passive
Receive the event of other functions triggering and carry out the analysis of corresponding function.
When the list of thing module carries out cross-index with interconnection with the quality of power supply event statistics module, work as event
When a certain bar event is selected in list, corresponding case point also will synchronously be chosen in quality of power supply event statistics module, can look into
See event relatively taken place frequently at which at moment and trigger value size, the quality of power supply event statistics module is by transient voltage thing
Part presents in described point form and specifies system in the period to occur the distribution situation of quality of power supply event, vice versa.
When the list of thing module carries out cross-index with interconnection with the tolerance analysis module, the tolerance point
Analysis module is used to generate tolerance curve, and the tolerance curve includes ITIC curves and SEMI F47 curves, and curve describes thing
Part duration and the relation of residual voltage percentage, event are presented in the form of described point in curve, and tolerance curve includes safety
Region (curve citadel), case point represents that event is normal in safety zone, otherwise abnormal, when certain in list of thing module
One event is selected, and corresponding event also will synchronously be chosen in tolerance curve, can check event whether in safety zone,
To judge whether the event of triggering is normal, and vice versa.
It is described to set when the list of thing module carries out cross-index with interconnection with the running trend of the equipment analysis module
Received shipment row trend analysis module is used to generate running trend of the equipment figure, and the running trend of the equipment figure is to seclected time section internal trigger
Event and specified analog quantity channel virtual value carry out statistical analysis, the virtual value include maximum, minimum value, average value
With four kinds of statistical values of P95 values, when in list of thing module a certain bar event be selected, corresponding event in running trend of the equipment figure
Also it will synchronously choose, can understand and analyze event generation time, the running situation of equipment, vice versa.
When the list of thing module carries out cross-index with interconnection with the probability statistical analysis module, the probability system
Counting analysis module is used for generating probability statistic histogram, and the probability statistics histogram is the virtual value to specifying analog quantity channel
Probability statistics are carried out, histogram is depicted as, the probability of virtual value distributed area can be checked by figure, when in list of thing module
A certain bar event is selected, and corresponding case point also will synchronously be chosen in probability statistics histogram, can check event generation time,
Equipment operation is in which probability interval, and vice versa.
When the list of thing module is associated with the fault waveform analysis module, the fault waveform analysis module is pair
Wave file carries out the displaying of original waveform figure, harmonic wave, vector, order components and power features amount and analyzed, when choosing event, will
The analysis of synchronous averaging and the event correlation fault waveform.
When the list of thing module is with the fault location module relation, the fault location module is to event correlation
Waveform handled, computing, extract characteristic value, the fault distance of position monitor circuit can directly initiate failure by event
Positioning function, is positioned to the fault distance for monitoring circuit.
When the list of thing module is associated with the fault diagnosis module, the fault diagnosis module is to event correlation
Waveform handled, computing, extract characteristic value, the fault type of diagnosis monitoring device or circuit can directly be opened by event
Dynamic fault diagnosis functions, are diagnosed to the fault type of monitoring device or circuit.
The list of thing module and the quality of power supply event statistics module are by event type+residual voltage+thing
The part triggered time, as Correlation Criteria, carries out the association of two dimensional analysis results；
The list of thing module and the tolerance analysis module are by event type+residual voltage+event duration
Time, as Correlation Criteria, carries out the association of two dimensional analysis results；
The list of thing module is to be used as to associate bar by event-triggered times with running trend of the equipment analysis mould
Part, carries out the association of two dimensional analysis results；
The list of thing module and the probability statistical analysis module are to be used as Correlation Criteria by event-triggered times,
Carry out the association of two dimensional analysis results.
The list of thing module with the fault waveform analysis module is used as by associating waveform+event-triggered times
Correlation Criteria, carries out the association of two dimensional analysis results；
The list of thing module is to be used as association by associating waveform+event-triggered times with the fault location module
Condition, carries out the association of two dimensional analysis results；
The list of thing module is to be used as association by associating waveform+event-triggered times with the fault diagnosis module
Condition, carries out the association of two dimensional analysis results；
The tolerance analysis module and the running trend of the equipment analysis module be by event type+triggered time+
Residual voltage+incident duration carries out the association of two dimensional analysis results as Correlation Criteria；
The tolerance analysis module and the probability statistical analysis module are by event type+triggered time+remnants
Voltage+incident duration carries out the association of two dimensional analysis results as Correlation Criteria；
The running trend of the equipment analysis module and the probability statistical analysis module are by analog quantity channel+separate work
For Correlation Criteria, the association of two dimensional analysis results is carried out；
Tolerance curve (running trend of the equipment figure, probability statistics histogram) and fault waveform analysis, fault location and event
Barrier diagnosis is associated by associating waveform+event-triggered times, carry out the association of multiple dimensional analysis results.
The present invention is tie by case point, realizes quality of power supply event statistics figure, tolerance curve, running trend of the equipment
Figure, the analysis of probability statistics histogram, fault waveform, cross-index and the interconnection of fault location and fault diagnosis.Choose electric energy matter
The case point of event statistics figures, tolerance curve, operation trend figure, probability statistics histogram any one analysis chart is measured, other
Corresponding event is also synchronously chosen in analysis chart, and analysis result is presented, meanwhile, if this event correlation waveform, can start
Fault waveform analysis, fault location and fault diagnosis, are analyzed accordingly.
The present invention requires high occasion suitable for power network, power plant, petrochemical industry, steel, coal, metallurgy etc. to the quality of power supply,
Can be from the quality of power supply situations of multiple dimensional analysis systems, and analysis result cross-index and the interconnection of various dimensions can be carried out, it is
User provides directly perceived, comprehensive comprehensive power quality analysis result.
The present invention first passes through quality of power supply event statistics figure, tolerance curve, running trend of the equipment figure, probability statistics Nogata
Figure, fault waveform analysis, fault location and fault diagnosis, make from the situation of the single dimensional analysis quality of power supply, then by event
For tie, Correlation Criteria is used as with waveform is associated by event type, triggered time, residual voltage, incident duration, will be each
The analysis result of dimension is joined together, index intersected with each other, and the comprehensive power quality analysis result of system is presented on the whole.
Shown in list of thing in current slot, the event of all generations, in table in detail the triggered time of record event,
The information such as duration and residual voltage percentage, can start detailed waveform analysis figure, to the waveform of event correlation in list of thing
Carry out characteristic quantity analysis.
In Fig. 1：Quality of power supply event statistics figure displaying voltage swell, temporarily drop, short interruptions event, event is in described point form
Present, can period for taking place frequently of the event of checking and trigger value size.
In Fig. 2：ITIC curve maps displaying voltage swell, temporarily drop, short interruptions event, event are presented in described point form, when
Case point is located in safety zone, shows that quality of power supply event is normal, otherwise abnormal.
In Fig. 3：SEMI F47 curve maps displaying voltage dip, short interruptions event, event are presented in described point form, work as thing
Part point is located in safety zone, shows that quality of power supply event is normal, otherwise abnormal.
Running trend of the equipment and probability statistical analysis include trend curve, probability distribution curve and event line, wherein trend
Curve shows maximum, minimum value, average value and the P95 value curves that current channel specifies separate (such as AB line voltages), passes through song
Line can check the variation tendency of correspondence analog quantity at the appointed time in section.It is probability analysis curve displaying current channel, separate flat
The Distribution value probability of Mean curve, can understand the distribution probability for showing each interval value.Event line shows the thing in current slot
Part is distributed, and event is marked in described point form, when operation trend changes, it can be seen that whether there is event this moment.
Fault waveform analysis bag thumbnail containing waveform and waveform labor figure, waveform thumbnail is the thing in list of thing
Shown when part is chosen, show voltage, the current waveform before and after failure in three cycles.Waveform labor figure (such as Fig. 4) is main right
Waveform carries out the analysis of the detailed features amounts such as harmonic wave, vector, order components, power and virtual value.
Quality of power supply event statistics, tolerance curve, running trend of the equipment figure and fault waveform analysis interconnection are shown in Fig. 5
Various dimensions interconnection comprehensive power quality analysis chart.Each several part chooses event by event correlation in any subfunction in figure
Point, the corresponding case point of other functional blocks will synchronously be chosen, associated with each other, cross-index, the electricity of various dimensions Conjoint Analysis system
Can quality condition.
The present invention gets up the analysis result of various dimensions by event tight association, index intersected with each other, can intuitively, comprehensively
Analysis system quality of power supply situation, reliability is higher.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. a kind of comprehensive power quality analysis system of various dimensions interconnection, it is characterised in that including list of thing module, Yi Jiyu
Quality of power supply event statistics module, tolerance analysis module, the equipment operation that the list of thing module is indexed interconnection become
Potential analysis module, probability statistical analysis module, fault waveform analysis module, fault location module and fault diagnosis module, for
The comprehensive power quality analysis result of various dimensions is presented in family.
2. comprehensive power quality analysis system according to claim 1, it is characterised in that the list of thing module and institute
When stating quality of power supply event statistics module progress cross-index with interconnection, when a certain bar event is selected in list of thing, electricity
It corresponding case point also will can synchronously choose in quality events statistical module, can check that event relatively took place frequently and touched at which at moment
The size of hair value, the quality of power supply event statistics module is, in described point form, to present transient voltage event and specify the period
The distribution situation of quality of power supply event occurs for interior system.
3. comprehensive power quality analysis system according to claim 1, it is characterised in that the list of thing module and institute
When stating tolerance analysis module progress cross-index with interconnection, the tolerance analysis module is used to generate tolerance curve, institute
Stating tolerance curve includes ITIC curves and SEMI F47 curves, and curve describes the pass of incident duration and residual voltage percentage
System, event is presented in the form of described point in curve, and tolerance curve includes safety zone, and case point is in safety zone, table
Show that event is normal, it is otherwise abnormal, when a certain bar event is selected in list of thing module, corresponding event in tolerance curve
It will synchronously choose, event can be checked whether in safety zone, to judge whether the event of triggering is normal.
4. comprehensive power quality analysis system according to claim 1, it is characterised in that the list of thing module and institute
When stating running trend of the equipment analysis module progress cross-index with interconnection, the running trend of the equipment analysis module is set for generation
Received shipment row tendency chart, the running trend of the equipment figure to seclected time section internal trigger event and specified analog quantity channel it is effective
Value carries out statistical analysis, and the virtual value includes maximum, minimum value, four kinds of statistical values of average value and P95 values, works as list of thing
A certain bar event is selected in module, and corresponding event also will synchronously be chosen in running trend of the equipment figure, can understand analysis event
Generation moment, the running situation of equipment.
5. comprehensive power quality analysis system according to claim 1, it is characterised in that the list of thing module and institute
When stating probability statistical analysis module progress cross-index with interconnection, the probability statistical analysis module is used for generating probability statistics directly
Fang Tu, the probability statistics histogram is to specifying the virtual value of analog quantity channel to carry out probability statistics, being depicted as histogram, lead to
The probability of virtual value distributed area can be checked by crossing figure, and when a certain bar event is selected in list of thing module, probability statistics are straight
Corresponding case point also will synchronously be chosen in square figure, can check event generation time, equipment operation is in which probability interval.
6. comprehensive power quality analysis system according to claim 1, it is characterised in that the list of thing module and institute
When stating the association of fault waveform analysis module, the fault waveform analysis module be wave file is carried out original waveform figure displaying,
Harmonic wave, vector, order components and power features amount are analyzed, when choosing event, by synchronous averaging and the event correlation fault wave
The analysis of shape.
7. comprehensive power quality analysis system according to claim 1, it is characterised in that the list of thing module and institute
When stating fault location module relation, the fault location module be the waveform of event correlation is handled, computing, extract feature
Value, the fault distance of position monitor circuit can directly initiate fault location function by event, the fault distance to monitoring circuit
Positioned.
8. comprehensive power quality analysis system according to claim 1, it is characterised in that the list of thing module and institute
State fault diagnosis module association when, the fault diagnosis module be the waveform of event correlation is handled, computing, extract feature
The fault type of value, diagnosis monitoring device or circuit, can directly initiate fault diagnosis functions, to monitoring device or line by event
The fault type on road is diagnosed.
9. comprehensive power quality analysis system according to claim 1, it is characterised in that
The list of thing module with the quality of power supply event statistics module is touched by event type+residual voltage+event
The hair time, as Correlation Criteria, carries out the association of two dimensional analysis results；
The list of thing module and the tolerance analysis module are by event type+residual voltage+incident duration
As Correlation Criteria, the association of two dimensional analysis results is carried out；
The list of thing module is to be used as Correlation Criteria by event-triggered times with running trend of the equipment analysis mould, is entered
The association of two dimensional analysis results of row；
The list of thing module and the probability statistical analysis module are to be used as Correlation Criteria by event-triggered times, are carried out
The association of two dimensional analysis results.
10. comprehensive power quality analysis system according to claim 1, it is characterised in that
The list of thing module is to be used as association by associating waveform+event-triggered times with the fault waveform analysis module
Condition, carries out the association of two dimensional analysis results；
The list of thing module is to be used as association bar by associating waveform+event-triggered times with the fault location module
Part, carries out the association of two dimensional analysis results；
The list of thing module is to be used as association bar by associating waveform+event-triggered times with the fault diagnosis module
Part, carries out the association of two dimensional analysis results；
The tolerance analysis module and the running trend of the equipment analysis module are by event type+triggered time+remnants
Voltage+incident duration carries out the association of two dimensional analysis results as Correlation Criteria；
The tolerance analysis module and the probability statistical analysis module be by event type+triggered time+residual voltage+
Incident duration carries out the association of two dimensional analysis results as Correlation Criteria；
The running trend of the equipment analysis module and the probability statistical analysis module are to be used as pass by analog quantity channel+separate
Bracing part, carries out the association of two dimensional analysis results；
Tolerance curve is analyzed with fault waveform, fault location and fault diagnosis are carried out by associating waveform+event-triggered times
Association, carries out the association of multiple dimensional analysis results.
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| CN201710433717.9A CN107093035A (en) | 2017-06-09 | 2017-06-09 | A kind of comprehensive power quality analysis system of various dimensions interconnection |
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