CN104764993A - Detection method and device for high-voltage circuit breaker - Google Patents
Detection method and device for high-voltage circuit breaker Download PDFInfo
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- CN104764993A CN104764993A CN201410007928.2A CN201410007928A CN104764993A CN 104764993 A CN104764993 A CN 104764993A CN 201410007928 A CN201410007928 A CN 201410007928A CN 104764993 A CN104764993 A CN 104764993A
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Abstract
The invention discloses a detection method and device for a high-voltage circuit breaker. The detection device comprises a detection unit, a collection unit and a diagnosis unit, wherein the detection unit is mounted on the high-voltage circuit breaker to detect mechanical state information of the high-voltage circuit breaker, the collection unit is connected with the detection unit to collect the mechanical state information detected by the detection unit, and the diagnosis unit is connected with the collection unit to diagnose mechanical faults of the high-voltage circuit breaker according to the information collected by the collection unit. Thus, the problem that the mechanical faults of the high-voltage circuit breaker are hard to diagnose timely in the prior art is solved, necessary basis is provided for maintenance of the high-voltage circuit breaker, and further, the high-voltage circuit breaker are avoided from accidents caused by operation faults.
Description
Technical field
The present invention relates to primary cut-out field, in particular to a kind of primary cut-out detection method and device.
Background technology
Mechanical fault is the major failure type of primary cut-out.Find the defect pipelines in isolating switch electric control loop and operating mechanism as early as possible, not only can avoid breaker operator fault occurring and avoiding having an accident, meanwhile, also can provide necessary foundation for the breakdown maintenance of isolating switch.
Primary cut-out is when starting working, and first electromagnet for controlling switch coil powers on, and is realized the release of energy in stored energy mechanism afterwards by a series of mechanical linkage, and then is moved to drive moving contact by the transmission of power and the direction controlling of power.Electromagnet coil current can reflect the collision situation of electromagnet core motion and release member.In whole process, the mechanical impact between parts, friction, and the effect of mechanical force, electric power etc. all can excite the mechanical vibration of isolating switch.The mechanical oscillation signal of isolating switch is outwards propagated by the connection between equipment component, and this signal can record on the support of travel path and switch, shell.
In the prior art, primary cut-out manufacturer adopts switching characteristic tester mostly, by the testing and analysis to breaker coil electric current, stroke and fracture signal, obtain the mechanical property parameters such as the branch wire time of isolating switch, divide-shut brake speed, stroke and excess of stroke characteristic, spring.In electric system, maintainer adopts portable breaker mechanic property tester to carry out testing and analysis to breaker coil electric current and port signal mostly, obtain the branch wire time of isolating switch, to have an overall judgement to the operating characteristic of isolating switch.These method of testings, can obtain the operating characteristic that isolating switch is overall, but measurement mechanism itself is helpless for the discovery of accident defect.
The mechanical state of high-voltage circuit breaker detection system of existing other types, mostly only possesses the testing and analysis function of signal, the signal wherein measured can comprise: coil current, stroke, mechanical vibration etc., but seldom possess machine performance diagnostic function, generally can only provide the basic parameter of breaker operator characteristic, therefore be difficult to diagnose the accident defect type of the timely machine performance current to primary cut-out.
For the problem being difficult in prior art diagnose the mechanical fault of primary cut-out in time, at present effective solution is not yet proposed.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of primary cut-out detection method and device, to solve in prior art the problem being difficult to diagnose the machine performance of primary cut-out.
To achieve these goals, according to an aspect of the present invention, a kind of primary cut-out detection method is provided.This primary cut-out detection method comprises: the machine performance information detecting primary cut-out; Gather the machine performance information that described detecting unit detects; According to the mechanical fault of primary cut-out described in the information diagnosis that described collecting unit collects, obtain diagnostic message; And export described diagnostic message.
Further, the mechanical fault of primary cut-out described in the information diagnosis collected according to described collecting unit, after obtaining diagnostic message, described detection method also comprises: described diagnostic message be stored in default storage unit; And show the diagnostic message stored in described default storage unit.
To achieve these goals, according to another aspect of the present invention, a kind of primary cut-out pick-up unit is provided.Primary cut-out pick-up unit according to the present invention comprises: detecting unit, is arranged on primary cut-out, for detecting the machine performance information of primary cut-out; Collecting unit, is connected with detecting unit, for the machine performance information that acquisition testing unit inspection arrives; Diagnosis unit, is connected with collecting unit, for the mechanical fault of information diagnosis primary cut-out collected according to collecting unit; And output unit, for exporting described diagnostic message.
Further, also comprising: storage unit, be connected with diagnosis unit, diagnosing for storing diagnosis unit the failure message obtained.
Further, also comprising: display unit, be connected with diagnosis unit, diagnosing for showing diagnosis unit the failure message obtained.
Further, display unit comprises human-machine interface unit, and for realizing human-computer interaction function, human-machine interface unit comprises optimum configurations interface, data acquisition interface and signal transacting interface.
Further, also comprise: control module, be connected with diagnosis unit with collecting unit, for the diagnosis of the collection and diagnosis unit that control collecting unit.
Further, detecting unit comprises the vibration acceleration detecting unit of the current detecting unit of the coil current for detecting primary cut-out and/or the vibration signal of detection primary cut-out.
Further, collecting unit is data collecting card, and data collecting card is built in industrial control computer.
Further, primary cut-out pick-up unit is the pick-up unit controlled by LabVIEW graphical interface program.
Further, diagnosis unit is the diagnosis mechanism adopting support vector machine to carry out diagnostic process.
By the present invention, primary cut-out pick-up unit is adopted to comprise: detecting unit, is arranged on primary cut-out, for detecting the machine performance information of primary cut-out; Collecting unit, is connected with detecting unit, for the machine performance information that acquisition testing unit inspection arrives; And diagnosis unit, be connected with collecting unit, for the mechanical fault of information diagnosis primary cut-out collected according to collecting unit, solve in prior art the problem being difficult to diagnose the mechanical fault of primary cut-out in time, breakdown maintenance for primary cut-out provides necessary foundation, and then avoids primary cut-out causes accident generation due to operating troubles.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the primary cut-out pick-up unit easy structure figure according to the embodiment of the present invention;
Fig. 2 is the primary cut-out structure of the detecting device figure according to the embodiment of the present invention; And
Fig. 3 is the mechanical state of high-voltage circuit breaker signal waveforms according to the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 1 is the primary cut-out pick-up unit easy structure figure according to the embodiment of the present invention.As shown in Figure 1, a kind of primary cut-out pick-up unit 1 provided according to embodiments of the invention mainly comprises: detecting unit 11, collecting unit 13 and diagnosis unit 12.Detecting unit 11 is arranged on primary cut-out, may be used for the machine performance information detecting primary cut-out; Collecting unit 13 is connected with detecting unit 11, may be used for the machine performance information that acquisition testing unit 11 detects; Diagnosis unit 12 is connected with collecting unit 13, may be used for the mechanical fault of the information diagnosis primary cut-out collected according to collecting unit; Output unit (not shown), for exporting described diagnostic message.
Detecting unit 11 is by measuring the signals such as the coil current of primary cut-out, stroke and mechanical vibration, and these signals are the machine performance information of primary cut-out.The machine performance information of the primary cut-out arrived that collecting unit 13 acquisition testing unit 11 detects, and this machine performance information is sent to diagnosis unit 12, diagnosis unit 12 is identified by the information gathered collecting unit 13 and is analyzed, thus realizes the diagnosis to the machine performance of primary cut-out.This detecting unit can be sensor.
The present embodiment is owing to have employed detecting unit 11, the primary cut-out machine detecting device 1 that collecting unit 13 and diagnosis unit 12 form, primary cut-out in use can be diagnosed the machine performance of primary cut-out in time, and the judgement to primary cut-out Current mechanical state and accident defect type quantitative, breakdown maintenance for primary cut-out provides necessary foundation, avoids primary cut-out causes accident generation due to operating troubles.
Fig. 2 is the primary cut-out structure of the detecting device figure according to the embodiment of the present invention.As shown in Figure 2, primary cut-out pick-up unit 1 comprises detecting unit 11, collecting unit 13, diagnosis unit 12, storage unit 14, control module 15 and display unit 16, and wherein detecting unit 11 comprises current detecting unit 111 and vibration acceleration detecting unit 112.
Preferably, the primary cut-out pick-up unit 1 of the embodiment of the present invention also comprises storage unit 14, and this storage unit 14 is connected with diagnosis unit 12, may be used for storing diagnosis unit 12 and diagnoses the failure message obtained.Failure message can comprise the original signal of fault diagnosis and the characteristic parameter extracted of machine performance for identifying and analyze primary cut-out, this characteristic parameter can be the current value in extreme point place moment in the initial current value of primary cut-out when fault in coil, end time current value and coil current waveform figure, also can be the initial time of each vibration event in primary cut-out mechanical vibration.
Fig. 3 is the mechanical state of high-voltage circuit breaker signal waveforms according to the embodiment of the present invention.As shown in Figure 3, the transverse axis of coordinate is time (ms), the longitudinal axis is vibration signal amplitude (g) and coil current amplitude (0.5A/div-1A), 2 is coil current waveform figure, 3 is mechanical vibration waveform figure, g is the coil current of fault initial time primary cut-out, and k is the electric current in extreme point place moment in coil current waveform figure, and h, i and j are the initial time of primary cut-out vibration.Shown in Fig. 3, g, h, i, j and a k all can as characteristic parameter for identifying and analyze the machine performance of primary cut-out.
Storage unit 14 is adopted the original signal (signal of machine performance information after collecting unit gathers of the primary cut-out that detecting unit detects) of fault diagnosis and the corresponding characteristic parameter of original signal to be stored as historical data, as the foundation diagnosed next time together with storage wherein original data, make the machine performance diagnosis of primary cut-out more accurately and timely.
Preferably, detecting unit 11 can comprise the vibration acceleration detecting unit 112 of the current detecting unit 111 of the coil current for detecting primary cut-out and/or the vibration signal of detection primary cut-out.Current detecting unit 111 can be arranged on the coil of primary cut-out, and vibration acceleration detecting unit 112 can be arranged on the support of primary cut-out or shell is first-class can detect on the position of mechanical vibration.
It should be noted that, the embodiment of the present invention can also adopt such as voltage detection unit, stroke detection unit and pressure sensing cell etc., current detecting unit 111 and vibration acceleration detecting unit 112 just preferably, do not have improper restriction to the present invention.
This fluctuation signal, based on Hall effect principle, mainly for detection of the current fluctuation signal of the coil current in primary cut-out, and is sent to collecting unit, and provides the original current signal of fault diagnosis to diagnosis unit by current detecting unit 111.Vibration acceleration detecting unit 112 is mainly for detection of the mechanical oscillation signal of primary cut-out.The coil current fluctuation signal of current detecting unit 111 and the primary cut-out detected by vibration acceleration detecting unit 112 and mechanical oscillation signal all can as the diagnosis basis of mechanical state of high-voltage circuit breaker.
According to the present embodiment mesohigh detection device for circuit breaker 1, wherein collecting unit 13 is data collecting card, and data collecting card is built in industrial control computer.Data collecting card can convert digital quantity the machine performance signal that the primary cut-out that detecting unit 11 detects is located at scene to degree of precision, be transferred to industrial control computer, and realize the mechanical fault diagnosis function of primary cut-out by fault detection mechanism.
Primary cut-out pick-up unit 1 according to the embodiment of the present invention also comprises control module 15, and this control module 15 is connected with diagnosis unit 12 with collecting unit 13, for the diagnosis of the collection and diagnosis unit 12 that control collecting unit 13.Adopt industrial control computer as control module 15 in the present embodiment, wherein control module 15 realizes the control of primary cut-out pick-up unit and the function of man-machine interaction mainly through the graphical interface program developed by LabVIEW.Therefore, the primary cut-out pick-up unit in the present embodiment is the pick-up unit controlled by LabVIEW graphical interface program.
Preferably, the primary cut-out pick-up unit 1 of the embodiment of the present invention also comprises display unit 16, and this display unit 16 is connected with diagnosis unit 12, may be used for display diagnosis unit 12 and diagnoses the failure message obtained.This display unit 16 can also be used for the machine performance information showing the primary cut-out that data collecting card collects.Display unit 16 comprises human-machine interface unit, and for realizing human-computer interaction function, human-machine interface unit comprises optimum configurations interface, data acquisition interface and signal transacting interface.
Display unit 16 can carry out man-machine interactive operation, can arrange the parameters of primary cut-out pick-up unit 1 as required and regulate, the status information of primary cut-out and the mechanical fault information of primary cut-out can also be shown more intuitively simultaneously, help staff to judge fault and the defect of primary cut-out quantitatively.
In the control procedure of primary cut-out pick-up unit 1, also comprise the configuration to data collecting card, to the configuration of signal parameter, the synchronous configuration of triggering, signals collecting controls, and data filtering controls, and data store and control, signal transacting and display and control.When detecting unit 11 detects the machine performance information of primary cut-out, data collecting card is by gathering this machine performance information and converting this machine performance information to digital quantity signal with degree of precision, this signal is stored in storage unit 14 after waiting signal transacting after filtering automatically, in an orderly manner, and by display and control output display.This process is the detecting portion of primary cut-out.Diagnosis unit 12 extracts characteristic parameter altogether from the machine performance information of the primary cut-out collected, the initial time current value of the coil current wherein extracted, in end time current value and coil current waveform figure, extreme point moment current value is as the characteristic parameter of coil current, and in the mechanical oscillation signal of extraction, the initial time of each vibration event is as the characteristic parameter of vibration signal.
Preferably, diagnosis unit 12 is the diagnosis mechanism adopting support vector machine to carry out diagnostic process.Support vector machine has many distinctive advantages in solution small sample, non-linear and high dimensional pattern identification, and can promote the use of in other problems concerning study such as Function Fitting.Adopt the diagnosis unit 12 of support vector machine method can effectively utilize the machine performance of Principle of Statistics to primary cut-out to diagnose.
Support vector machine utilizes characteristic parameter obtained above (as the characteristic parameter of coil current or the characteristic parameter etc. of mechanical vibration) identify the machine performance of primary cut-out and classify, thus realizes the diagnostic function to the machine performance of primary cut-out.
Carried out the original signal of fault diagnosis and corresponding characteristic parameter also using as historical data stored in the characteristic fingerprint storehouse of storage unit 14, as the diagnosis basis of the machine performance of primary cut-out next time together with original data.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a primary cut-out detection method, is characterized in that, comprising:
Detect the machine performance information of primary cut-out;
Gather the machine performance information that described detecting unit detects;
According to the mechanical fault of primary cut-out described in the information diagnosis that described collecting unit collects, obtain diagnostic message; And
Export described diagnostic message.
2. primary cut-out detection method according to claim 1, is characterized in that, the mechanical fault of primary cut-out described in the information diagnosis collected according to described collecting unit, and after obtaining diagnostic message, described detection method also comprises:
Described diagnostic message is stored in default storage unit; And
Show the diagnostic message stored in described default storage unit.
3. a primary cut-out pick-up unit, is characterized in that, comprising:
Detecting unit, is arranged on described primary cut-out, for detecting the machine performance information of primary cut-out;
Collecting unit, is connected with described detecting unit, for gathering the machine performance information that described detecting unit detects;
Diagnosis unit, is connected with described collecting unit, for the mechanical fault of primary cut-out described in the information diagnosis that collects according to described collecting unit, obtains diagnostic message; And
Output unit, for exporting described diagnostic message.
4. primary cut-out pick-up unit according to claim 3, is characterized in that, also comprise:
Storage unit, is connected with described diagnosis unit, diagnoses for storing described diagnosis unit the failure message obtained;
Display unit, is connected with described diagnosis unit, diagnoses for showing described diagnosis unit the failure message obtained.
5. primary cut-out pick-up unit according to claim 4, is characterized in that, described display unit comprises:
Human-machine interface unit, for realizing human-computer interaction function, described human-machine interface unit comprises optimum configurations interface, data acquisition interface and signal transacting interface.
6. primary cut-out pick-up unit according to claim 3, is characterized in that, also comprise:
Control module, is connected with described diagnosis unit with described collecting unit, for the diagnosis of the collection and described diagnosis unit that control described collecting unit.
7. primary cut-out pick-up unit according to claim 3, it is characterized in that, described detecting unit comprises the current detecting unit of the coil current for detecting described primary cut-out and/or detects the vibration acceleration detecting unit of vibration signal of described primary cut-out.
8. primary cut-out pick-up unit according to claim 3, is characterized in that, described collecting unit is data collecting card, and described data collecting card is built in industrial control computer.
9. primary cut-out pick-up unit according to claim 3, is characterized in that, described primary cut-out pick-up unit is the pick-up unit controlled by LabVIEW graphical interface program.
10. primary cut-out pick-up unit according to claim 3, is characterized in that, described diagnosis unit is the diagnosis mechanism adopting support vector machine to carry out diagnostic process.
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| CN201410007928.2A CN104764993A (en) | 2014-01-07 | 2014-01-07 | Detection method and device for high-voltage circuit breaker |
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Cited By (7)
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| CN105548876A (en) * | 2016-01-28 | 2016-05-04 | 国网北京市电力公司 | Method and device for detection of mechanical features of disconnection switch |
| CN105651503A (en) * | 2016-01-07 | 2016-06-08 | 广东电网有限责任公司电力科学研究院 | Acceleration variable monitoring-based breaker mechanical failure diagnosis method |
| CN105868770A (en) * | 2016-03-23 | 2016-08-17 | 国网山东省电力公司电力科学研究院 | High-voltage circuit breaker fault diagnosis method based on unsupervised learning model |
| CN107101813A (en) * | 2017-04-26 | 2017-08-29 | 河北工业大学 | A kind of frame-type circuit breaker mechanical breakdown degree assessment method based on vibration signal |
| CN109164382A (en) * | 2018-09-10 | 2019-01-08 | 广西电网有限责任公司电力科学研究院 | A kind of High Voltage Circuit Breaker Contacts electroerosion method for diagnosing faults |
| CN111256932A (en) * | 2020-03-04 | 2020-06-09 | 云南电网有限责任公司电力科学研究院 | GIS vibration signal continuous acquisition method and system based on LabVIEW platform |
| WO2022227047A1 (en) * | 2021-04-30 | 2022-11-03 | Abb Schweiz Ag | Method for managing a breaker and controller of a breaker |
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| CN105651503A (en) * | 2016-01-07 | 2016-06-08 | 广东电网有限责任公司电力科学研究院 | Acceleration variable monitoring-based breaker mechanical failure diagnosis method |
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| CN109164382B (en) * | 2018-09-10 | 2021-01-05 | 广西电网有限责任公司电力科学研究院 | Method for diagnosing electrical erosion fault of high-voltage circuit breaker contact |
| CN111256932A (en) * | 2020-03-04 | 2020-06-09 | 云南电网有限责任公司电力科学研究院 | GIS vibration signal continuous acquisition method and system based on LabVIEW platform |
| WO2022227047A1 (en) * | 2021-04-30 | 2022-11-03 | Abb Schweiz Ag | Method for managing a breaker and controller of a breaker |
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Application publication date: 20150708 |