CN109342876A - A kind of transformer winding machine performance diagnostic system and its diagnostic method based on many kinds of parameters acquisition - Google Patents
A kind of transformer winding machine performance diagnostic system and its diagnostic method based on many kinds of parameters acquisition Download PDFInfo
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- CN109342876A CN109342876A CN201810857137.7A CN201810857137A CN109342876A CN 109342876 A CN109342876 A CN 109342876A CN 201810857137 A CN201810857137 A CN 201810857137A CN 109342876 A CN109342876 A CN 109342876A
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- 238000004804 winding Methods 0.000 title claims abstract description 34
- 238000002405 diagnostic procedure Methods 0.000 title claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000003750 conditioning effect Effects 0.000 claims abstract description 10
- 238000003745 diagnosis Methods 0.000 claims abstract description 8
- 238000004364 calculation method Methods 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000013500 data storage Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010338 mechanical breakdown Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Protection Of Transformers (AREA)
Abstract
The present invention is specially a kind of transformer winding machine performance diagnostic system and its diagnostic method based on many kinds of parameters acquisition, and the machine performance diagnostic system includes signal acquisition unit, signal conditioning unit, A/D converting unit, control processing unit, storage unit display unit, key-press input unit, alarm unit and communication unit；The machine performance diagnostic system passes through transformer voltage, electric current and the Vibration Condition information acquired in real time, the machine performance current to the transformer winding carries out efficient diagnosis after calculation processing, discovery failure in time, guarantees the transformer normal safe operation.The present invention provides a kind of transformer winding machine performance diagnostic system and method based on many kinds of parameters acquisition, real-time diagnosis transformer winding machine performance, it is ensured that transformer safety reliably works.
Description
Technical field
The invention belongs to technical field of electric power detection, in particular to a kind of transformer winding machine based on many kinds of parameters acquisition
Tool condition diagnosing system and its diagnostic method.
Background technique
Power transformer is one of equipment important in electric system, and the reliability of the work of power transformer is power train
It unites safe and reliable, stable operation important leverage.Power transformer in the process of running, needs to bear higher voltage, electricity
, insulation fault etc. especially may occur when overcurrent, overvoltage, overload occurs, and then be likely to result in the hair of failure
It is raw.
With the intelligentized development of electric power network and the raising of Condition Based Maintenance Technology For Electric Power Equipments, to power transformer shape
State maintenance requires higher and higher, and Winding in Power Transformer machine performance can understand the real-time fortune of transformer in real time in research operation
Row situation finds the incipient fault of inside transformer in time, the generation of more major break down is prevented, to implement in full power transformer shape
State maintenance and real-time diagnosis operating status provide foundation.Winding in Power Transformer machine performance diagnostic method diagnostic signal list at present
One, small fault diagnostic result is also inaccurate.For this purpose, proposing a kind of transformer winding machine performance based on many kinds of parameters acquisition
Diagnostic system and its diagnostic method, by the transformer voltage, electric current and Vibration Condition information acquired in real time, real-time diagnosis becomes
Depressor winding machine performance, it is ensured that transformer safety reliably works, electric power caused by avoiding because of transformer winding mechanical breakdown
The failure of system.
Summary of the invention
The present invention provides a kind of transformer winding machine performance diagnostic system and method based on many kinds of parameters acquisition, in real time
Diagnose transformer winding machine performance, it is ensured that transformer safety reliably works.
The present invention is specially a kind of transformer winding machine performance diagnostic system based on many kinds of parameters acquisition, the machinery
Condition diagnosing system include signal acquisition unit, signal conditioning unit, A/D converting unit, control processing unit, storage unit,
Display unit, key-press input unit, alarm unit and communication unit, the signal acquisition unit and the signal conditioning unit,
The A/D converting unit, the control processing unit are linked in sequence, and the control processing unit is also single with the storage respectively
First, the described display unit, the key-press input unit, the alarm unit and the communication unit are connected；The machinery
Condition diagnosing system passes through transformer voltage, electric current and the Vibration Condition information acquired in real time, to institute after calculation processing
It states the current machine performance of transformer winding and carries out efficient diagnosis, find failure in time, guarantee that the transformer is normally transported safely
Row.
The signal acquisition unit is using SPT204A type voltage transformer acquisition transformer high and low pressure side voltage letter
Number, transformer high and low pressure side current signal is acquired using SCT254FK type current transformer, is vibrated using LC0154J type
Oil tank of transformer surface vibration signals described in sensor measurement；The voltage transformer and the current transformer are mounted on described
Transformer high and low pressure side mutual inductor secondary side, the vibrating sensor are adsorbed in each phase winding and correspond in the middle part of tank surface.
The signal conditioning unit includes low-pass filter, OPA2227 chip operational amplifier, double limiting circuit and same
Walk square wave translation circuit.
The A/D converting unit samples ADS8364 chip using 16 bit synchronizations, realizes analog-to-digital conversion.
The key-press input unit in conjunction with the storage unit, the display unit complete transformer parameter setting,
The setting of Working mode set and reference value.
It is described to examine the present invention also provides a kind of diagnostic method of transformer winding machine performance based on many kinds of parameters acquisition
Disconnected method includes the following steps:
Step (1), by the signal acquisition unit acquire transformer high-low-voltage side voltage signal, current signal,
Tank surface vibration signal；
Step (2) is filtered by signal of the low-pass filter to input；
Step (3) amplifies processing to the signal of input by the OPA2227 chip operational amplifier；
Step (4) passes through the double limiting circuit clips output ± 2.5V voltage signal；
Step (5), the square-wave signal that sinusoidal signal is changed into same phase by the synchronous square wave translation circuit are defeated
Out；
Step (6) carries out analog-to-digital conversion by signal of the A/D converting unit to input；
Step (7) carries out calculation processing by signal of the control processing unit to input, obtains voltage phasor, electricity
Phasor, short-circuit reactance, short-circuit reactance change rate, vibration signal period and vibration signal fundamental frequency amplitude are flowed, and is deposited by described
Storage unit carries out data storage；
Step (8) is compared judgement to signal in conjunction with the preset reference value, and then judges the transformer
Winding current state；
Step (9) carries out storage to testing result by the storage unit and the display unit and shows, and passes through institute
It states alarm unit and Realtime Alerts is carried out to failure, fault message is timely transmitted to by remote terminal by the communication unit, with
Just relevant staff takes corresponding measure in time.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the transformer winding machine performance diagnostic system based on many kinds of parameters acquisition of the present invention
Figure.
Specific embodiment
The transformer winding machine performance diagnostic system based on many kinds of parameters acquisition a kind of to the present invention with reference to the accompanying drawing
Specific embodiment elaborate.
As shown in Figure 1, machine performance diagnostic system of the invention includes signal acquisition unit, signal conditioning unit, A/D turns
Change unit, control processing unit, storage unit, display unit, key-press input unit, alarm unit and communication unit, the letter
Number acquisition unit and the signal conditioning unit, the A/D converting unit, control processing unit sequential connection, the control
Processing unit processed also respectively with the storage unit, the display unit, the key-press input unit, the alarm unit and
The communication unit is connected；The machine performance diagnostic system passes through transformer voltage, electric current and the vibration acquired in real time
Situation information, the machine performance current to the transformer winding carries out efficient diagnosis after calculation processing, in time discovery event
Barrier, guarantees the transformer normal safe operation.
The signal acquisition unit is using SPT204A type voltage transformer acquisition transformer high and low pressure side voltage letter
Number, transformer high and low pressure side current signal is acquired using SCT254FK type current transformer, is vibrated using LC0154J type
Oil tank of transformer surface vibration signals described in sensor measurement；The voltage transformer and the current transformer are mounted on described
Transformer high and low pressure side mutual inductor secondary side, the vibrating sensor are adsorbed in each phase winding and correspond in the middle part of tank surface.
The signal conditioning unit includes low-pass filter, OPA2227 chip operational amplifier, double limiting circuit and same
Walk square wave translation circuit.
The A/D converting unit samples ADS8364 chip using 16 bit synchronizations, realizes analog-to-digital conversion.
The key-press input unit in conjunction with the storage unit, the display unit complete transformer parameter setting,
The setting of Working mode set and reference value.
It is described to examine the present invention also provides a kind of diagnostic method of transformer winding machine performance based on many kinds of parameters acquisition
Disconnected method includes the following steps:
Step (1), by the signal acquisition unit acquire transformer high-low-voltage side voltage signal, current signal,
Tank surface vibration signal；
Step (2) is filtered by signal of the low-pass filter to input；
Step (3) amplifies processing to the signal of input by the OPA2227 chip operational amplifier；
Step (4) passes through the double limiting circuit clips output ± 2.5V voltage signal；
Step (5), the square-wave signal that sinusoidal signal is changed into same phase by the synchronous square wave translation circuit are defeated
Out；
Step (6) carries out analog-to-digital conversion by signal of the A/D converting unit to input；
Step (7) carries out calculation processing by signal of the control processing unit to input, obtains voltage phasor, electricity
Phasor, short-circuit reactance, short-circuit reactance change rate, vibration signal period and vibration signal fundamental frequency amplitude are flowed, and is deposited by described
Storage unit carries out data storage；
Step (8) is compared judgement to signal in conjunction with the preset reference value, and then judges the transformer
Winding current state；
Step (9) carries out storage to testing result by the storage unit and the display unit and shows, and passes through institute
It states alarm unit and Realtime Alerts is carried out to failure, fault message is timely transmitted to by remote terminal by the communication unit, with
Just relevant staff takes corresponding measure in time.
Finally it should be noted that only illustrating technical solution of the present invention rather than its limitations in conjunction with above-described embodiment.Institute
The those of ordinary skill in category field is it is to be understood that those skilled in the art can repair a specific embodiment of the invention
Change or equivalent replacement, but these modifications or change are being applied among pending claims.
Claims (6)
1. a kind of transformer winding machine performance diagnostic system based on many kinds of parameters acquisition, which is characterized in that the mechanical-like
State diagnostic system includes signal acquisition unit, signal conditioning unit, A/D converting unit, control processing unit, storage unit, shows
Show unit, key-press input unit, alarm unit and communication unit, the signal acquisition unit and the signal conditioning unit, institute
State A/D converting unit, the control processing unit be linked in sequence, the control processing unit also respectively with the storage unit,
The display unit, the key-press input unit, the alarm unit and the communication unit are connected；The machine performance
Diagnostic system passes through transformer voltage, electric current and the Vibration Condition information acquired in real time, to the change after calculation processing
The current machine performance of depressor winding carries out efficient diagnosis, finds failure in time, guarantees the transformer normal safe operation.
2. a kind of transformer winding machine performance diagnostic system based on many kinds of parameters acquisition according to claim 1,
It is characterized in that, the signal acquisition unit is using SPT204A type voltage transformer acquisition transformer high and low pressure side voltage letter
Number, transformer high and low pressure side current signal is acquired using SCT254FK type current transformer, is vibrated using LC0154J type
Oil tank of transformer surface vibration signals described in sensor measurement；The voltage transformer and the current transformer are mounted on described
Transformer high and low pressure side mutual inductor secondary side, the vibrating sensor are adsorbed in each phase winding and correspond in the middle part of tank surface.
3. a kind of transformer winding machine performance diagnostic system based on many kinds of parameters acquisition according to claim 2,
Be characterized in that, the signal conditioning unit include low-pass filter, OPA2227 chip operational amplifier, double limiting circuit and
Synchronous square wave translation circuit.
4. a kind of transformer winding machine performance diagnostic system based on many kinds of parameters acquisition according to claim 3,
It is characterized in that, the A/D converting unit samples ADS8364 chip using 16 bit synchronizations, realizes analog-to-digital conversion.
5. a kind of transformer winding machine performance diagnostic system based on many kinds of parameters acquisition according to claim 4,
Be characterized in that, the key-press input unit in conjunction with the storage unit, the display unit complete transformer parameter setting,
The setting of Working mode set and reference value.
6. according to claim 1 based on the transformer winding machine performance diagnosis of many kinds of parameters acquisition described in any one of -5
The diagnostic method of system, which is characterized in that the diagnostic method includes the following steps:
Step (1) acquires transformer high-low-voltage side voltage signal, current signal, fuel tank by the signal acquisition unit
Surface vibration signals；
Step (2) is filtered by signal of the low-pass filter to input；
Step (3) amplifies processing to the signal of input by the OPA2227 chip operational amplifier；
Step (4) passes through the double limiting circuit clips output ± 2.5V voltage signal；
Step (5) is exported the square-wave signal that sinusoidal signal is changed into same phase by the synchronous square wave translation circuit；
Step (6) carries out analog-to-digital conversion by signal of the A/D converting unit to input；
Step (7) carries out calculation processing by signal of the control processing unit to input, obtains voltage phasor, electric current phase
Amount, short-circuit reactance, short-circuit reactance change rate, vibration signal period and vibration signal fundamental frequency amplitude, and it is single by the storage
Member carries out data storage；
Step (8) is compared judgement to signal in conjunction with the preset reference value, and then judges the transformer winding
Current state；
Step (9) carries out storage to testing result by the storage unit and the display unit and shows, and passes through the report
Alert unit carries out Realtime Alerts to failure, fault message is timely transmitted to remote terminal by the communication unit, so as to phase
It closes staff and takes corresponding measure in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810857137.7A CN109342876A (en) | 2018-07-31 | 2018-07-31 | A kind of transformer winding machine performance diagnostic system and its diagnostic method based on many kinds of parameters acquisition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810857137.7A CN109342876A (en) | 2018-07-31 | 2018-07-31 | A kind of transformer winding machine performance diagnostic system and its diagnostic method based on many kinds of parameters acquisition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109342876A true CN109342876A (en) | 2019-02-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810857137.7A Withdrawn CN109342876A (en) | 2018-07-31 | 2018-07-31 | A kind of transformer winding machine performance diagnostic system and its diagnostic method based on many kinds of parameters acquisition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579657A (en) * | 2019-07-11 | 2019-12-17 | 国网江苏省电力有限公司徐州供电分公司 | Transformer fault detection system based on vibration signal analysis and detection method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954865A (en) * | 2014-05-06 | 2014-07-30 | 国家电网公司 | Mechanical-state on-line monitoring device of transformer winding |
| CN104237705A (en) * | 2014-09-30 | 2014-12-24 | 沈阳工业大学 | Multi-information fusion online monitoring device and diagnostic method for windings of power transformers |
| CN106405317A (en) * | 2016-10-12 | 2017-02-15 | 国网辽宁省电力有限公司电力科学研究院 | Power transformer winding fault online monitoring device and diagnosis method |
| CN209167455U (en) * | 2018-07-03 | 2019-07-26 | 国网江苏省电力有限公司徐州供电分公司 | A kind of transformer winding machine performance diagnostic system based on many kinds of parameters acquisition |
-
2018
- 2018-07-31 CN CN201810857137.7A patent/CN109342876A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954865A (en) * | 2014-05-06 | 2014-07-30 | 国家电网公司 | Mechanical-state on-line monitoring device of transformer winding |
| CN104237705A (en) * | 2014-09-30 | 2014-12-24 | 沈阳工业大学 | Multi-information fusion online monitoring device and diagnostic method for windings of power transformers |
| CN106405317A (en) * | 2016-10-12 | 2017-02-15 | 国网辽宁省电力有限公司电力科学研究院 | Power transformer winding fault online monitoring device and diagnosis method |
| CN209167455U (en) * | 2018-07-03 | 2019-07-26 | 国网江苏省电力有限公司徐州供电分公司 | A kind of transformer winding machine performance diagnostic system based on many kinds of parameters acquisition |
Non-Patent Citations (1)
| Title |
|---|
| 张彬: "电力变压器绕组机械状态多信息诊断方法研究", 《中国博士学位论文全文数据库 工程科技II辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579657A (en) * | 2019-07-11 | 2019-12-17 | 国网江苏省电力有限公司徐州供电分公司 | Transformer fault detection system based on vibration signal analysis and detection method thereof |
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Application publication date: 20190215 |
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