CN109407030A - A kind of voltage transformer fault detection method based on three shaft vibration technologies - Google Patents
A kind of voltage transformer fault detection method based on three shaft vibration technologies Download PDFInfo
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- CN109407030A CN109407030A CN201810804016.6A CN201810804016A CN109407030A CN 109407030 A CN109407030 A CN 109407030A CN 201810804016 A CN201810804016 A CN 201810804016A CN 109407030 A CN109407030 A CN 109407030A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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Abstract
The invention discloses a kind of voltage transformer fault detection methods based on three shaft vibration technologies: S1, establishing equipment fault model；S2, the actual change amplitude of the geographical location information, physical vibration frequency and its position of target voltage mutual inductor in three-dimensional coordinate system is acquired；S3, the fault type and defect type for determining target voltage mutual inductor, and the geographical location information of the fault type based on the target voltage mutual inductor and defect type and the target voltage mutual inductor formulates Failure alarm secheme.Actual change amplitude of the physical vibration frequency and its position of the real-time collection voltages mutual inductor of the present invention in three-dimensional coordinate system is simultaneously analyzed, electrical equipment early stage mechanical breakdown can be found in time, it avoids that major mechanical accident occurs, also its defect type can be monitored under conditions of electrical equipment normal charging operation, avoid that safe burst accident occurs.
Description
Technical field
The present invention relates to voltage transformer malfunction monitoring technical field more particularly to a kind of electricity based on three shaft vibration technologies
Press mulual inductor malfunction detection method.
Background technique
With the development of the social economy, safety operation level is particularly important, and the operating status pair of voltage transformer
Generation System Reliability has great influence.Causing due to the various aspects such as design, manufacture, installation and operation maintenance
Accident rate is relatively high, while because the reasons such as filthy, insulation is weak, toy intrusion also often cause accident.Its harm can
It is impaired to directly result in equipment, and causes economic loss.However since equipment amount in recent years increases year by year, voltage transformer in addition
State evaluation technology is limited, and existing on-line monitoring and live detection means are unable to satisfy repair based on condition of component job requirement, occurs therewith
The problem of it is also more and more, seriously affected transformer cabinet repair based on condition of component work development.And three shaft vibration methods want hardware precision
It asks high and sensor accuracy to require high, causes after sensor data acquisition anti-interference ability requirement strong and frequency coverage
Hardware difficulty caused by the anti-white-noise requirement height of the wide bring of range and big data artificial intelligence judge is big, and therefore, it is difficult to meet to work as
To the intelligent monitoring of voltage transformer operating status under preceding situation.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of mutual induction of voltage based on three shaft vibration technologies
Device fault detection method.
A kind of voltage transformer fault detection method based on three shaft vibration technologies proposed by the present invention, including following step
It is rapid:
S1, building model: the corresponding three-dimensional space variation range of the voltage transformer of type, the type based on voltage transformer
And the corresponding fault type of the three-dimensional space variation range and defect type are established equipment fault model and are stored；
S2, acquisition data: the geographical location information of target voltage mutual inductor, the physical vibration frequency of the target voltage mutual inductor are acquired
Actual change amplitude of the position of rate and the target voltage mutual inductor in three-dimensional coordinate system；
S3, specified alarm scheme: by actual change amplitude of the position of target voltage mutual inductor in three-dimensional coordinate system with
The corresponding three-dimensional space variation range of the voltage transformer of the type is compared, and determines that target voltage is mutual according to comparison result
The fault type and defect type of sensor；And fault type and defect type and the mesh based on the target voltage mutual inductor
The geographical location information for marking voltage transformer formulates Failure alarm secheme.
Preferably, in step S1, in the equipment fault model, the voltage of the type of voltage transformer, the type
The physical location of mutual inductor the variation range of x-axis, the physical location of the voltage transformer of the type y-axis variation range,
The physical location of the voltage transformer of the type the variation range of z-axis, the type voltage transformer respectively in x-axis, y-axis z
The corresponding fault type of the variation range of axis and the voltage transformer of the type are respectively in x-axis, the variation range pair of y-axis z-axis
The defect type answered corresponds.
Preferably, in the equipment fault model, the fault type of voltage transformer includes insulation event in step S1
Barrier, discharge fault and mechanical breakdown.
Preferably, in the equipment fault model, the defect type of voltage transformer includes general lacks in step S1
Sunken, major defect and urgent defect.
Preferably, the corresponding three-dimensional space variation range of the voltage transformer of the type is specific in step S3
Include:
The physical location of the voltage transformer of the type is in the variation range of x-axis, the physical location of the voltage transformer of the type
The variation range of y-axis, the physical location of the voltage transformer of the type z-axis variation range.
Preferably, step S3 is specifically included:
Actual change amplitude of the position of target voltage mutual inductor in three-dimensional coordinate system is obtained, Δ x, Δ y, Δ z are denoted as；
Respectively by the physical location of Δ x and the voltage transformer of the type in the variation range of x-axis, the voltage of Δ y and the type
The physical location of mutual inductor the voltage transformer of the variation range of y-axis, Δ z and the type physical location z-axis variation
Range is compared；
The physical location of the voltage transformer of the type comprising Δ x is demarcated as the first variation in the variation range of x-axis respectively
The physical location of the voltage transformer of range, the type comprising Δ y the variation range of y-axis be demarcated as the second variation range,
The physical location of the voltage transformer of Δ z comprising the type is demarcated as third variation range in the variation range of z-axis；
The first variation range, the second variation range, the corresponding fault type of third variation range and defect type are demarcated respectively
For target faults type and target defect type, and formulate Failure alarm secheme:
When target faults type is mechanical breakdown, level fault alarm scheme is formulated；
When target faults type is insulation fault, secondary failure alarm scheme is formulated；
When target faults type is discharge fault, three-level fault alarm scheme is formulated；
When target defect type is general defect, level fault alarm scheme is formulated；
When target defect type is major defect, secondary failure alarm scheme is formulated；
When target defect type is urgent defect, three-level fault alarm scheme is formulated.
Preferably, working as the target faults type and the corresponding fault alarm of target defect type of target voltage mutual inductor
When the grade difference of scheme, select higher Failure alarm secheme as the Failure alarm secheme of the target voltage mutual inductor.
Preferably, the geographical location information of the target voltage mutual inductor is the target voltage mutual inductance in step S2
The actual geographic position of device.
Preferably, the level fault alarm scheme are as follows: to where the actual geographic position of target voltage mutual inductor
The electric administrative department in region sends fault alarm information；
The secondary failure alarm scheme are as follows: to the power management section of the actual geographic position region of target voltage mutual inductor
The electric administrative department of door and adjacent area sends fault alarm information；
The three-level fault alarm scheme are as follows: to the power management section of the actual geographic position region of target voltage mutual inductor
Electric administrative department in door and circumference a kilometer range sends fault alarm information；
Wherein, a is preset value.
Voltage transformer fault detection method proposed by the present invention based on three shaft vibration technologies, passes through real-time collection voltages
The actual change amplitude of the physical vibration frequency of mutual inductor and the position of the voltage transformer in three-dimensional coordinate system is simultaneously
Analysis, come to voltage transformer working condition and safe condition judge, can not only find in time electrical equipment morning
Phase mechanical breakdown avoids that major mechanical accident occurs, and can monitor under conditions of electrical equipment normal charging operation
Its defect type avoids that safe burst accident occurs, and the safety of general warranty equipment operation facilitates economic and social benefit
Stable development.Further, the present invention is formulated also according to fault type of the voltage transformer under different conditions and defect type
On the one hand different Failure alarm sechemes can guarantee the timeliness that fault alarm information is sent, on the other hand be conducive to improve
The specific aim of alarm scheme realizes the intelligent monitoring to voltage transformer working condition.
Specific embodiment
Voltage transformer fault detection method proposed by the present invention based on three shaft vibration technologies, comprising the following steps:
S1, the type based on voltage transformer, the corresponding three-dimensional space variation range of voltage transformer of the type and described
The corresponding fault type of three-dimensional space variation range and defect type are established equipment fault model and are stored；
In present embodiment, in the equipment fault model, the type of voltage transformer, the voltage transformer of the type
Physical location is in the variation range of x-axis, the physical location of the voltage transformer of the type in the variation range of y-axis, the type
The physical location of voltage transformer the variation range of z-axis, the type voltage transformer respectively in the variation of x-axis, y-axis z-axis
The corresponding fault type of range and the voltage transformer of the type are respectively in the corresponding defect of variation range of x-axis, y-axis z-axis
Type corresponds；Above-mentioned one-to-one relationship is established, kind during subsequent analysis according to voltage transformer is conducive to
Class inquire can amplitude variation range, fault type and defect type for reference, improve the actual parameter of voltage transformer
With can the validity that is compared of amplitude variation range for reference, thus improve fault type and defect type determine it is accurate
Property.
S1, the type based on voltage transformer, the corresponding three-dimensional space variation range of voltage transformer of the type and described
The corresponding fault type of three-dimensional space variation range and defect type are established equipment fault model and are stored；
In present embodiment, in the equipment fault model, type, the reality of the voltage transformer of the type of voltage transformer
Position is in the variation range of x-axis, the physical location of the voltage transformer of the type in the variation range of y-axis, the voltage of the type
The physical location of mutual inductor the variation range of z-axis, the type voltage transformer respectively in x-axis, the variation range of y-axis z-axis
Corresponding fault type and the voltage transformer of the type are respectively in the corresponding defect type of variation range of x-axis, y-axis z-axis
It corresponds；Above-mentioned one-to-one relationship is established, is conducive to type during subsequent analysis according to voltage transformer and looks into
Ask can amplitude variation range, fault type and defect type for reference, improve by the actual parameter of voltage transformer with can
The validity that amplitude variation range for reference is compared, to improve the accuracy that fault type and defect type determine.
Further, in the equipment fault model, the fault type of voltage transformer includes insulation fault, discharge fault
And mechanical breakdown；
The defect type of voltage transformer includes general defect, major defect and urgent defect.
The physical vibration frequency of S2, the geographical location information for acquiring target voltage mutual inductor, the target voltage mutual inductor, with
And actual change amplitude of the position of the target voltage mutual inductor in three-dimensional coordinate system；
In present embodiment, the geographical location information of the target voltage mutual inductor is the actual geographic of the target voltage mutual inductor
Position.
S3, by the electricity of actual change amplitude of the position of target voltage mutual inductor in three-dimensional coordinate system and the type
The corresponding three-dimensional space variation range of pressure mutual inductor is compared, and the failure of target voltage mutual inductor is determined according to comparison result
Type and defect type；And fault type and defect type and the target voltage mutual inductance based on the target voltage mutual inductor
The geographical location information of device formulates Failure alarm secheme.
In present embodiment,
The physical location of the voltage transformer of the type is in the variation range of x-axis, the physical location of the voltage transformer of the type
The variation range of y-axis, the physical location of the voltage transformer of the type z-axis variation range；It acquires comprehensively and accurately
Variation range of the physical location of the transformer cabinet of the type in three-dimensional coordinate system can provide directly for subsequent comparison procedure
The comparison basis connect.
Its step specifically includes:
Actual change amplitude of the position of target voltage mutual inductor in three-dimensional coordinate system is obtained, Δ x, Δ y, Δ z are denoted as；
Respectively by the physical location of Δ x and the voltage transformer of the type in the variation range of x-axis, the voltage of Δ y and the type
The physical location of mutual inductor the voltage transformer of the variation range of y-axis, Δ z and the type physical location z-axis variation
Range is compared；
The physical location of the voltage transformer of the type comprising Δ x is demarcated as the first variation in the variation range of x-axis respectively
The physical location of the voltage transformer of range, the type comprising Δ y the variation range of y-axis be demarcated as the second variation range,
The physical location of the voltage transformer of Δ z comprising the type is demarcated as third variation range in the variation range of z-axis；
The first variation range, the second variation range, the corresponding fault type of third variation range and defect type are demarcated respectively
For target faults type and target defect type, and formulate Failure alarm secheme:
When target faults type is mechanical breakdown, level fault alarm scheme is formulated；
When target faults type is insulation fault, secondary failure alarm scheme is formulated；
When target faults type is discharge fault, three-level fault alarm scheme is formulated；
When target defect type is general defect, level fault alarm scheme is formulated；
When target defect type is major defect, secondary failure alarm scheme is formulated；
When target defect type is urgent defect, three-level fault alarm scheme is formulated.
Further, the level fault alarm scheme are as follows: to the actual geographic position location of target voltage mutual inductor
The electric administrative department in domain sends fault alarm information；
The secondary failure alarm scheme are as follows: to the power management section of the actual geographic position region of target voltage mutual inductor
The electric administrative department of door and adjacent area sends fault alarm information；
The three-level fault alarm scheme are as follows: to the power management section of the actual geographic position region of target voltage mutual inductor
Electric administrative department in door and circumference a kilometer range sends fault alarm information；
Wherein, a is preset value.
The seriousness of voltage transformer failure is determined according to the difference of fault type and defect type, it is serious further according to it
Property select different Failure alarm sechemes respectively, not only ensure that the timeliness of alarm, but also improve the validity of alarm, it is real
Now to the intelligent dynamic monitoring of voltage transformer actual working state.
It should be noted that working as the target faults type and the corresponding failure report of target defect type of target voltage mutual inductor
When the grade difference of police's case, select higher Failure alarm secheme as the fault alarm side of the target voltage mutual inductor
Case；It so, it is possible the validity for improving Failure alarm secheme selection comprehensively, thus according to the real work of target voltage mutual inductor
State is targetedly alarmed.
The voltage transformer fault detection method based on three shaft vibration technologies that present embodiment proposes, by acquiring in real time
The actual change width of the physical vibration frequency of voltage transformer and the position of the voltage transformer in three-dimensional coordinate system
Be worth and analyze, come to voltage transformer working condition and safe condition judge, can not only find electrically to set in time
Standby early stage mechanical breakdown avoids that major mechanical accident occurs, and can supervise under conditions of electrical equipment normal charging operation
Its defect type is measured, avoids that safe burst accident occurs, the safety of general warranty equipment operation facilitates economic and social effect
The stable development of benefit.Further, fault type and defect of the present embodiment also according to voltage transformer under different conditions
Type formulates different Failure alarm sechemes, on the one hand can guarantee the timeliness that fault alarm information is sent, on the other hand have
Conducive to the specific aim for improving alarm scheme, the intelligent monitoring to voltage transformer working condition is realized.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of voltage transformer fault detection method based on three shaft vibration technologies, which comprises the following steps:
S1, building model: the corresponding three-dimensional space variation range of the voltage transformer of type, the type based on voltage transformer
And the corresponding fault type of the three-dimensional space variation range and defect type are established equipment fault model and are stored；
S2, acquisition data: the geographical location information of target voltage mutual inductor, the physical vibration frequency of the target voltage mutual inductor are acquired
Actual change amplitude of the position of rate and the target voltage mutual inductor in three-dimensional coordinate system；
S3, specified alarm scheme: by actual change amplitude of the position of target voltage mutual inductor in three-dimensional coordinate system with
The corresponding three-dimensional space variation range of the voltage transformer of the type is compared, and determines that target voltage is mutual according to comparison result
The fault type and defect type of sensor；And fault type and defect type and the mesh based on the target voltage mutual inductor
The geographical location information for marking voltage transformer formulates Failure alarm secheme.
2. the voltage transformer fault detection method according to claim 1 based on three shaft vibration technologies, which is characterized in that
In step S1, in the equipment fault model, the type of voltage transformer, the physical location of the voltage transformer of the type are in x
The variation range of axis, the physical location of the voltage transformer of the type are in the variation range of y-axis, the voltage transformer of the type
Physical location is corresponding former in the variation range of x-axis, y-axis z-axis respectively in the variation range of z-axis, the voltage transformer of the type
The voltage transformer for hindering type and the type is corresponded in the corresponding defect type of variation range of x-axis, y-axis z-axis respectively.
3. the voltage transformer fault detection method according to claim 2 based on three shaft vibration technologies, which is characterized in that
In step S1, in the equipment fault model, the fault type of voltage transformer includes insulation fault, discharge fault and machinery event
Barrier.
4. the voltage transformer fault detection method according to claim 3 based on three shaft vibration technologies, which is characterized in that
In step S1, in the equipment fault model, the defect type of voltage transformer includes general defect, major defect and promptly lacks
It falls into.
5. the voltage transformer fault detection method according to claim 4 based on three shaft vibration technologies, which is characterized in that
In step S3, the corresponding three-dimensional space variation range of the voltage transformer of the type is specifically included:
The physical location of the voltage transformer of the type is in the variation range of x-axis, the physical location of the voltage transformer of the type
The variation range of y-axis, the physical location of the voltage transformer of the type z-axis variation range.
6. the voltage transformer fault detection method according to claim 5 based on three shaft vibration technologies, which is characterized in that
Step S3 is specifically included:
Actual change amplitude of the position of target voltage mutual inductor in three-dimensional coordinate system is obtained, Δ x, Δ y, Δ z are denoted as；
Respectively by the physical location of Δ x and the voltage transformer of the type in the variation range of x-axis, the voltage of Δ y and the type
The physical location of mutual inductor the voltage transformer of the variation range of y-axis, Δ z and the type physical location z-axis variation
Range is compared；
The physical location of the voltage transformer of the type comprising Δ x is demarcated as the first variation in the variation range of x-axis respectively
The physical location of the voltage transformer of range, the type comprising Δ y the variation range of y-axis be demarcated as the second variation range,
The physical location of the voltage transformer of Δ z comprising the type is demarcated as third variation range in the variation range of z-axis；
The first variation range, the second variation range, the corresponding fault type of third variation range and defect type are demarcated respectively
For target faults type and target defect type, and formulate Failure alarm secheme:
When target faults type is mechanical breakdown, level fault alarm scheme is formulated；
When target faults type is insulation fault, secondary failure alarm scheme is formulated；
When target faults type is discharge fault, three-level fault alarm scheme is formulated；
When target defect type is general defect, level fault alarm scheme is formulated；
When target defect type is major defect, secondary failure alarm scheme is formulated；
When target defect type is urgent defect, three-level fault alarm scheme is formulated.
7. the voltage transformer fault detection method according to claim 6 based on three shaft vibration technologies, which is characterized in that
When the grade difference of the target faults type of target voltage mutual inductor corresponding Failure alarm secheme with target defect type, choosing
Select Failure alarm secheme of the higher Failure alarm secheme as the target voltage mutual inductor.
8. the voltage transformer fault detection method according to claim 7 based on three shaft vibration technologies, which is characterized in that
In step S2, the geographical location information of the target voltage mutual inductor is the actual geographic position of the target voltage mutual inductor.
9. the voltage transformer fault detection method according to claim 8 based on three shaft vibration technologies, which is characterized in that
The level fault alarm scheme are as follows: sent out to the electric administrative department of the actual geographic position region of target voltage mutual inductor
Send fault alarm information；
The secondary failure alarm scheme are as follows: to the power management section of the actual geographic position region of target voltage mutual inductor
The electric administrative department of door and adjacent area sends fault alarm information；
The three-level fault alarm scheme are as follows: to the power management section of the actual geographic position region of target voltage mutual inductor
Electric administrative department in door and circumference a kilometer range sends fault alarm information；
Wherein, a is preset value.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112485744A (en) * | 2020-11-16 | 2021-03-12 | 国网山东省电力公司莒县供电公司 | Fault identification method and equipment for capacitor voltage transformer |
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