CN106546869A - A kind of hollow power reactor turn-to-turn insulation On-line Fault monitoring device - Google Patents
A kind of hollow power reactor turn-to-turn insulation On-line Fault monitoring device Download PDFInfo
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- CN106546869A CN106546869A CN201611224865.1A CN201611224865A CN106546869A CN 106546869 A CN106546869 A CN 106546869A CN 201611224865 A CN201611224865 A CN 201611224865A CN 106546869 A CN106546869 A CN 106546869A
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- turn
- reactor
- loss factor
- signal
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- 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
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
Abstract
The present invention is a kind of hollow power reactor turn-to-turn insulation On-line Fault monitoring device, and power reactor turn-to-turn insulation fault method is judged including by the change of loss factor value；Device is made up of signal extraction part, signal conversion control portion, Computing part, display and alarm part；The terminal voltage of tested reactor, current signal are extracted with voltage, current transformer, zoom in and out and meet a/d converter process range, Single-chip Controlling a/d converter is processed to analog voltage, current signal, send into computer and be analyzed computed losses factor, active power and reactive power are calculated by electric current, voltage signal, loss factor is calculated；The change of real time on-line monitoring, contrast normal electricity reactor operation lower threshold value, shows reactor operation conditions, sends alarm beyond threshold value.This device is realized to be monitored on-line to hollow power reactor；The method changed by loss factor for proposing realizes testing goal, promotes and extend the new direction of hollow power reactor on-line monitoring；Improve the operational reliability of hollow power reactor.
Description
Technical field
The present invention relates to hollow power reactor on-line monitoring technique field, more particularly, it relates to a kind of for hollow
The research of power reactor turn-to-turn insulation on-line monitoring.
Background technology
With the raising of China's expanding economy scientific and technological level, power system is increasingly towards remote, Large Copacity, high electricity
The direction of pressure is developed, and reactor has reactive-load compensation, phase shift, current limliting, current stabilization and filter as a part important in power system
Ripple etc. is acted on.Hollow power reactor is most initially to be produced the seventies in last century successfully to research and develop by Canadian TE companies, this dry
Formula reactor has relatively easy structure and preferable performance, and the old-fashioned hollow reactance of the past is progressively instead of after putting into operation
Device.Because simple structure, the advantages of lighter weight, it is widely used in power system.Hollow power reactor exists
Made moist due to insulation ag(e)ing, coil in operation, switching frequently and the failure such as local arc causes reactor interturn short circuit fault,
Cause reactor on fire, burn reactor, cause irreversible destruction, so needing research a kind of mainly for short trouble
On-line monitoring technique finds that the device of failure at the short-circuit initial stage.
The content of the invention
It is an object of the invention to provide a kind of detection means of on-line monitoring, can just pass through in insulation fault early period of origination
The change of loss factor accurately finds failure.
In order to realize the above-mentioned target present invention by signal extraction part, signal conversion control portion, Computing part,
Show and alarm part is constituted.The loss factor result that loss factor data used by monitoring are obtained for emulation experiment.
The simulation process is：
1) analog circuit set up under normal operating conditions calculates loss factor by each branch current, voltage,
2) the fault simulation circuit set up under turn-to-turn short circuit working condition, calculates active power, idle work(by electric current, voltage
Rate, by than being worth to loss factor,
3) the fault simulation circuit set up under stock-price forecast working condition, goes out loss factor by simulation calculation；
Wherein, D.C. resistanceR, mutual inductanceM, self-inductionLIt is to be determined by reactor self structure parameter, can be with during applied voltage U
The value of I is calculated by MATLAB using formulas.Under the conditions of in key player on a team's circuit, voltage x current is standard sine waveform, total current
,
Active power,
Reactive power,
Loss factor.Record analyses above factor is used as benchmark.
Hollow power reactor turn-to-turn insulation failed equipment, in one current transformer of CT side joints, one voltage of PT side joints
Transformer extracts measurable current signal and voltage signal；Voltage, current transformer are by the terminal voltage electric current of tested reactor
Signal is really scaled, and meets a/d converter process range, and Single-chip Controlling a/d converter is carried out to analog voltage, current signal
Sliding-model control, sends into computer and is analyzed computed losses factor。
Active power and reactive power are calculated by electric current, voltage signal, loss factor, real time on-line monitoring is calculated
Change, contrast simulation normal electricity reactor operation underThreshold value, is carried out to hollow power reactor turn-to-turn insulation failure
Detection.
The present invention has following Advantageous Effects：
1）A kind of method that new hollow power reactor is accurately monitored on-line is proposed, hollow power reactor is realized accurate
On-line monitoring；
2）Compared with prior art, the method with observation loss factor change proposed by the present invention is promoted and extends hollow electricity
The new direction of power reactor on-line monitoring.
3）The monitoring platform built can effectively realize the monitoring to loss factor, practical.
Description of the drawings
Fig. 1 is hollow power reactor monitoring principle figure；
Fig. 2 is signal extraction schematic diagram；
Fig. 3 is the equivalent circuit under hollow power reactor normal operating conditions；
Fig. 4 is the equivalent circuit between hollow power reactor stock under working condition；
Fig. 5 is the equivalent circuit under hollow power reactor turn-to-turn working condition.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described further to the present invention, with reference to Fig. 1 ~ 5, it is the new offer of this practicality
Embodiment.
The present invention is by signal extraction part, signal conversion control portion, Computing part, display and alarm part structure
Into Fig. 1；The loss factor result that loss factor data used by monitoring are obtained for emulation experiment.
The simulation process is：1) analog circuit set up under normal operating conditions such as Fig. 3, by each branch current,
Voltage calculates loss factor；2) the fault simulation circuit set up under turn-to-turn short circuit working condition, is calculated by electric current, voltage
Active power, reactive power, by than being worth to loss factor；3）The fault simulation electricity set up under stock-price forecast working condition
Road, goes out loss factor by simulation calculation；Record analyses above factor is used as benchmark；Wherein, D.C. resistanceR, mutual inductanceM, self-inductionL
It is to be determined by reactor self structure parameter, the value of I during applied voltage U, can be calculated by MATLAB；In simulation electricity
Under the conditions of in road, voltage x current is standard sine waveform, total current
,
Active power,
Reactive power,
Loss factor.At the dry type hollow shunt reactor short trouble initial stage, be not that whole circle short circuit occurs, but
There occurs stock-price forecast failure.To simplify the calculating process of distributed current, by all plain conductors in parallel etc. in non-faulting coil
Imitate as a branch road, it is assumed that one containsNThe reactor of layer bridging coil is themShort trouble between layer winding, in two wires still
Do not melt and cut-off that to be previously achieved simplified circuit model as shown in Figure 4.AssumeNThe of layer bridging coilmThere is turn-to-turn short circuit event in layer
Barrier, shorted-turn fault is not also by the in this placemBefore layer winding blows, its circuit model is as shown in Figure 5.Both the above is short
Road failure can obtain the change of total current respectively, by the total current computed losses factor for calculating.Measuring system hardware electricity
Road is mainly made up of signal extracting circuit, signal conversion control circuit, computer etc..In one current transformer of CT side joints, PT
One voltage transformer of side joint extracts measurable current signal and voltage signal such as Fig. 2, by the terminal voltage of tested reactor, electricity
Stream signal is zoomed in and out, and is allowed to meet the process range of a/d converter, voltage, electric current of the Single-chip Controlling a/d converter to simulation
Signal carries out sliding-model control, obtains sampled data, and sends into computer being analyzed calculating, show measurement result.Contrast is imitative
Under the operation of real often power reactorThreshold value, detects to hollow power reactor turn-to-turn insulation failure.
Above-listed detailed description refers to and one of present invention possible embodiments is illustrated that the embodiment simultaneously is not used to limit
The scope of the claims of the present invention, it is all without departing from my patent spirit, it is intended to be limited solely by the scope of the claims of this case.
Claims (7)
1. a kind of hollow power reactor turn-to-turn insulation On-line Fault monitoring device, it is characterised in that a kind of to be based on loss factor
Variation monitoring air reactor turn-to-turn insulation fault method；The device includes signal extraction part, signal conversion control portion, meter
Calculation machine arithmetic section, display and alarm part structure.
2. a kind of hollow power reactor turn-to-turn insulation On-line Fault monitoring device, it is characterised in that described based on loss factor
The method of the hollow power reactor turn-to-turn insulation failure of variation monitoring, it is characterised in that from three phase acquisitions of hollow power reactor
Electric current I, voltage signal U, calculate active power and reactive power using loss formula, calculate to obtain loss factor by ratio,
Gained loss factor is compared with the threshold range for arranging, hollow power reactor whether failure is judged.
3. method according to claim 1 based on the hollow power reactor turn-to-turn insulation failure of loss factor change-detection,
Characterized in that, simulating hollow electric power electricity under normal operating conditions, shorted-turn fault state, stock-price forecast malfunction respectively
The equivalent circuit of anti-device, calculating current I voltage U loss factorsGive over to reduced parameter.
4. signal extraction part is used for according to claim 1, it is characterised in that in one current transformer of CT side joints, PT
One voltage transformer of side joint extracts measurable current signal and voltage signal, and this method is simple, apply isolation technology, and
And detection requirement can be reached.
5. according to claim 1 signal conversion part point, it is characterised in that two paths of signals access signal conditioning circuit is filtered
Ripple, amplification, the two-way synchronous acquisition that carries out of the signal Jing A/D converters after conditioning obtain digital signal.
6. according to claim 1 Computing part, it is characterised in that control A/D converter, using harmonic analysis method and standard
Synchronized algorithm carries out computing to data, and finally data operation acquired results loss factor is uploaded to by way of serial communication
Host computer is shown that storage etc. is processed.
7. shown according to claim 1 and alarm part, it is characterised in that show the result of variations of loss factor, shown hollow
The operation conditions of power reactor, beyond setting loss factor alarm processing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611224865.1A CN106546869A (en) | 2016-12-27 | 2016-12-27 | A kind of hollow power reactor turn-to-turn insulation On-line Fault monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611224865.1A CN106546869A (en) | 2016-12-27 | 2016-12-27 | A kind of hollow power reactor turn-to-turn insulation On-line Fault monitoring device |
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| CN106546869A true CN106546869A (en) | 2017-03-29 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990305A (en) * | 2017-04-13 | 2017-07-28 | 山东汇能电气有限公司 | The dry-type air-core reactor on-line monitoring method of high-voltage power capacitor complexes |
| CN107276031A (en) * | 2017-05-19 | 2017-10-20 | 上海子富安防科技有限公司 | The guard method of 35 kilovolts of dry-type air-core reactors in parallel |
| CN108008242A (en) * | 2017-10-31 | 2018-05-08 | 中国电力科学研究院有限公司 | Dry reactor turn-to-turn fault protective device and recognition methods |
| CN108535579A (en) * | 2018-07-02 | 2018-09-14 | 江苏高电电力设备有限公司 | Reactor integrated test system |
| CN108761297A (en) * | 2018-08-28 | 2018-11-06 | 重庆理工大学 | A kind of dry-type air-core reactor partial discharges fault on-line computing model based on high-frequency signal |
| CN108872653A (en) * | 2018-08-10 | 2018-11-23 | 国网吉林省电力有限公司电力科学研究院 | Dry type hollow shunt reactor group protects sample circuit and its application and guard method |
| CN109254205A (en) * | 2018-09-06 | 2019-01-22 | 国网山东省电力公司淄博供电公司 | The on-line monitoring method and monitoring device of dry-type air-core reactor active power loss |
| CN109274068A (en) * | 2018-10-24 | 2019-01-25 | 西安欣东源电气有限公司 | Dry reactor shorted-turn fault protective device and method |
| CN109387734A (en) * | 2018-12-25 | 2019-02-26 | 哈尔滨理工大学 | Dry-type hollow power reactor shorted-turn fault on-Line Monitor Device and its monitoring method |
| CN109613387A (en) * | 2018-11-22 | 2019-04-12 | 广西电网有限责任公司电力科学研究院 | A kind of winding stock-price forecast simulator |
| CN109901009A (en) * | 2019-03-21 | 2019-06-18 | 西安交通大学 | A kind of analogy method of dry type hollow reactor interturn short circuit fault |
| CN109980778A (en) * | 2019-03-07 | 2019-07-05 | 国网安徽省电力有限公司电力科学研究院 | A kind of dry reactor monitoring method and its device based on waveform reduction technique |
| CN110726957A (en) * | 2019-11-05 | 2020-01-24 | 国网江苏省电力有限公司宜兴市供电分公司 | Fault identification method of dry-type reactor |
| CN110988751A (en) * | 2019-12-09 | 2020-04-10 | 西安欣东源电气有限公司 | Circuit and method for detecting turn-to-turn short circuit fault of reactor |
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| CN104569724A (en) * | 2015-01-06 | 2015-04-29 | 国家电网公司 | Transformer short-circuit fault comprehensive diagnosis method |
| CN104730343A (en) * | 2015-03-18 | 2015-06-24 | 中电科技电子信息系统有限公司 | High voltage electricity capacitive equipment dielectric loss on-line monitoring method and monitoring system |
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Patent Citations (2)
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| CN104569724A (en) * | 2015-01-06 | 2015-04-29 | 国家电网公司 | Transformer short-circuit fault comprehensive diagnosis method |
| CN104730343A (en) * | 2015-03-18 | 2015-06-24 | 中电科技电子信息系统有限公司 | High voltage electricity capacitive equipment dielectric loss on-line monitoring method and monitoring system |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990305A (en) * | 2017-04-13 | 2017-07-28 | 山东汇能电气有限公司 | The dry-type air-core reactor on-line monitoring method of high-voltage power capacitor complexes |
| CN107276031A (en) * | 2017-05-19 | 2017-10-20 | 上海子富安防科技有限公司 | The guard method of 35 kilovolts of dry-type air-core reactors in parallel |
| CN108008242A (en) * | 2017-10-31 | 2018-05-08 | 中国电力科学研究院有限公司 | Dry reactor turn-to-turn fault protective device and recognition methods |
| CN108535579A (en) * | 2018-07-02 | 2018-09-14 | 江苏高电电力设备有限公司 | Reactor integrated test system |
| CN108872653A (en) * | 2018-08-10 | 2018-11-23 | 国网吉林省电力有限公司电力科学研究院 | Dry type hollow shunt reactor group protects sample circuit and its application and guard method |
| CN108761297A (en) * | 2018-08-28 | 2018-11-06 | 重庆理工大学 | A kind of dry-type air-core reactor partial discharges fault on-line computing model based on high-frequency signal |
| CN109254205A (en) * | 2018-09-06 | 2019-01-22 | 国网山东省电力公司淄博供电公司 | The on-line monitoring method and monitoring device of dry-type air-core reactor active power loss |
| CN109274068A (en) * | 2018-10-24 | 2019-01-25 | 西安欣东源电气有限公司 | Dry reactor shorted-turn fault protective device and method |
| CN109613387A (en) * | 2018-11-22 | 2019-04-12 | 广西电网有限责任公司电力科学研究院 | A kind of winding stock-price forecast simulator |
| CN109387734A (en) * | 2018-12-25 | 2019-02-26 | 哈尔滨理工大学 | Dry-type hollow power reactor shorted-turn fault on-Line Monitor Device and its monitoring method |
| CN109387734B (en) * | 2018-12-25 | 2021-01-26 | 哈尔滨理工大学 | Monitoring method of dry-type air-core power reactor turn-to-turn short circuit fault on-line monitoring device |
| CN109980778A (en) * | 2019-03-07 | 2019-07-05 | 国网安徽省电力有限公司电力科学研究院 | A kind of dry reactor monitoring method and its device based on waveform reduction technique |
| CN109901009A (en) * | 2019-03-21 | 2019-06-18 | 西安交通大学 | A kind of analogy method of dry type hollow reactor interturn short circuit fault |
| CN110726957A (en) * | 2019-11-05 | 2020-01-24 | 国网江苏省电力有限公司宜兴市供电分公司 | Fault identification method of dry-type reactor |
| CN110988751A (en) * | 2019-12-09 | 2020-04-10 | 西安欣东源电气有限公司 | Circuit and method for detecting turn-to-turn short circuit fault of reactor |
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Effective date of registration: 20180712 Address after: No. 52 Xuefu Road, Nangang District, Harbin, Heilongjiang Province Applicant after: HARBIN University OF SCIENCE AND TECHNOLOGY Applicant after: STATE GRID HEILONGJIANG ELECTRIC POWER Co.,Ltd. Address before: No. 52, Xuefu Road, Harbin, Heilongjiang Province Applicant before: Harbin University of Science and Technology |
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Application publication date: 20170329 |