CN105589018A - Detection method and device for partial discharge monitoring system - Google Patents
Detection method and device for partial discharge monitoring system Download PDFInfo
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- CN105589018A CN105589018A CN201510940139.9A CN201510940139A CN105589018A CN 105589018 A CN105589018 A CN 105589018A CN 201510940139 A CN201510940139 A CN 201510940139A CN 105589018 A CN105589018 A CN 105589018A
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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
- G01R31/12—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
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Abstract
The invention discloses a detection method and a device for a . The method comprises the steps of receiving a first signal, wherein an original signal is sent to a first electric power instrument by a signal generator and then the original signal is processed by the first electric power instrument to obtain the first signal; judging whether the first signal meets a preset signal detection condition or not; on the condition that the first signal does not meet the preset signal detection condition, judging that the first electric power instrument is abnormal in performance and sending out an alarm. The detection method and the device solve the technical problem in the prior art that the detection efficiency on the state of power supply equipment is low.
Description
Technical field
The present invention relates to power domain, in particular to a kind of detection method and device of partial discharge monitoring system.
Background technology
For ensureing the stable operation of electric power system and the normal work of power supply unit, electric power overhaul personnel need regularly to supplyingElectricity equipment carries out Condition Detection, and at present, power supply unit state-detection mainly relies on GIS (GeographicInformationSystem, GIS-Geographic Information System) partial discharge monitoring system, and need use UHF (UltraHighFrequency, superfrequency) UHF such as sensor and the power amplifier except it, wave filter, signal pickerDetecting instrument. Though through extensive use, there is many defects in this partial discharge monitoring system, specific as follows: (1)The technological standards disunity of UHF sensor, the UHF sensor performance of different manufacturers manufacture differs greatly; (2) UHFThe technological standards disunity of detecting instrument, the UHF detecting instrument performance difference that different manufacturers is manufactured is larger; (3) if depositIn transportation, use or cross electricity and use for a long time, very easily cause the damage of UHF sensor and joint thereof, and then impactIts sensitivity; (4) if exist allocation plan or position not good, the signal that very easily affects UHF sensor can detectScope; (5) if in severe electromagnetic environment or climatic environment, very easily cause UHF detecting instrument deteriorated or damage,And then affect its detect performance. To sum up, because of various defects and hidden danger that partial discharge monitoring system exists, cause existingThere is the technical problem that efficiency is lower in the power supply unit state-detection in technology.
For above-mentioned problem, effective solution is not yet proposed at present.
Summary of the invention
The embodiment of the present invention provides a kind of detection method and device of partial discharge monitoring system, existing at least to solveThe lower technical problem of power supply unit state-detection efficiency in technology.
According to the embodiment of the present invention aspect, provide a kind of detection method of partial discharge monitoring system, this inspectionSurvey method comprises: receives first signal, wherein, by signal generator, primary signal is sent to after the first power instrument,Described the first power instrument obtains described first signal after described primary signal is processed; Whether judge described first signalMeet preset signals testing conditions; If described first signal does not meet described preset signals testing conditions, described in determiningThe first power instrument property abnormality, and carry out alarm.
Further, describedly judge whether described first signal meets preset signals testing conditions and comprise: judge describedWhether the signal amplitude variable quantity of one signal is within preset signals amplitude variable quantity scope; If the letter of described first signalNumber amplitude variable quantity, within described preset signals amplitude variable quantity scope, determines that described first signal meets described pre-If condition detection signal; If the signal amplitude variable quantity of described first signal is not at described preset signals amplitude variable quantity modelWithin enclosing, determine that described first signal does not meet described preset signals testing conditions.
Further, described method also comprises: receive secondary signal, wherein, by described signal generator by described formerBeginning signal is sent to after the second power instrument through described the first power instrument, described the first power instrument and with described firstDescribed the second power instrument that power instrument connects obtains described secondary signal after described primary signal is processed; Judge instituteState secondary signal and whether meet described preset signals testing conditions; If described secondary signal does not meet described preset signals inspectionSurvey condition, determines described the first power instrument and/or described the second power instrument property abnormality, and carries out alarm.
Further, described the first power instrument and described the second power instrument are sensor.
Further, described method also comprises: whether the outward appearance that detects described the first power instrument meets default outward appearance barPart; If the outward appearance of described the first power instrument meets described default outward appearance condition, determine described the first power instrumentOutward appearance is normal; If the outward appearance of described the first power instrument does not meet described default outward appearance condition, determine described the first electricityThe abnormal appearance of power instrument, wherein, the outward appearance of described the first power instrument comprise following one of at least: shell, platingLayer, oxide layer, the coat of paint, instrument mark.
According to the embodiment of the present invention on the other hand, also provide a kind of checkout gear of partial discharge monitoring system, shouldCheckout gear comprises: the first receiving element, for receiving first signal, wherein, by signal generator by primary signalBe sent to after the first power instrument, described the first power instrument obtains described first signal after described primary signal is processed;The first judging unit, for judging whether described first signal meets preset signals testing conditions; The first determining unit,If do not meet described preset signals testing conditions for described first signal, determine that described the first power instrument performance is differentOften, and carry out alarm.
Further, described the first judging unit comprises: judgment sub-unit, and for judging the signal of described first signalWhether amplitude variable quantity is within preset signals amplitude variable quantity scope; First determines subelement, if for described firstThe signal amplitude variable quantity of signal, within described preset signals amplitude variable quantity scope, determines that described first signal is fullThe described preset signals testing conditions of foot; Second determines subelement, if for the signal amplitude variable quantity of described first signalNot within described preset signals amplitude variable quantity scope, determine that described first signal does not meet described preset signals inspectionSurvey condition.
Further, described device also comprises: the second receiving element, and for receiving secondary signal, wherein, by describedSignal generator is sent to described primary signal after the second power instrument through described the first power instrument, described the first electricityPower instrument obtains institute after described primary signal being processed with described the second power instrument being connected with described the first power instrumentState secondary signal; The second judging unit, for judging whether described secondary signal meets described preset signals testing conditions;The second determining unit, if do not meet described preset signals testing conditions for described secondary signal, determines described firstPower instrument and/or described the second power instrument property abnormality, and carry out alarm.
Further, described the first power instrument and described the second power instrument are sensor.
Further, described device also comprises: detecting unit, for detection of the outward appearance of described the first power instrument whetherMeet default outward appearance condition; The 3rd determining unit, if meet outside described presetting for the outward appearance of described the first power instrumentSight condition, determines that the outward appearance of described the first power instrument is normal; The 4th determining unit, if for described the first electric powerThe outward appearance of instrument does not meet described default outward appearance condition, determines the abnormal appearance of described the first power instrument, wherein,The outward appearance of described the first power instrument comprise following one of at least: shell, electrodeposited coating, oxide layer, the coat of paint, instrumentMark.
In embodiments of the present invention, adopt and be received from the first power instrument to the primary signal place being sent by signal generatorAfter reason, obtain the mode of first signal, by judging whether first signal meets preset signals testing conditions, if reachedFirst signal does not meet preset signals testing conditions, determines the first power instrument property abnormality the order that carries out alarm, improve the technique effect of power supply unit state-detection efficiency thereby realized, and then solved confession of the prior artThe lower technical problem of electricity Condition Detection efficiency.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, thisBright schematic description and description is used for explaining the present invention, does not form inappropriate limitation of the present invention. At accompanying drawingIn:
Fig. 1 is according to the flow chart of the detection method of a kind of optional partial discharge monitoring system of the embodiment of the present invention;
Fig. 2 is according to the schematic diagram of the detection method of a kind of optional partial discharge monitoring system of the embodiment of the present invention;
Fig. 3 is according to the schematic diagram of the detection method of the optional partial discharge monitoring system of the another kind of the embodiment of the present invention;
Fig. 4 is according to the flow chart of the detection method of the optional partial discharge monitoring system of the another kind of the embodiment of the present invention;
Fig. 5 is according to the schematic diagram of the detection method of another optional partial discharge monitoring system of the embodiment of the present invention;
Fig. 6 is according to the schematic diagram of the checkout gear of a kind of optional partial discharge monitoring system of the embodiment of the present invention.
Detailed description of the invention
In order to make those skilled in the art person understand better the present invention program, below in conjunction with in the embodiment of the present inventionAccompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, obviously, and described embodimentOnly the embodiment of a part of the present invention, instead of whole embodiment. Based on the embodiment in the present invention, abilityTerritory those of ordinary skill, not making the every other embodiment obtaining under creative work prerequisite, all should belong toThe scope of protection of the invention.
It should be noted that the term " first ", " in description of the present invention and claims and above-mentioned accompanying drawingTwo " be etc. for distinguishing similar object, and needn't be used for describing specific order or precedence. Should be appreciated that thisThe data that sample uses suitably can exchanged in situation, so as embodiments of the invention described herein can with exceptHere the order beyond those of diagram or description is implemented. In addition, term " comprises " and " having " and theyAny distortion, intention is to cover not exclusive comprising, for example, the process, the side that have comprised series of steps or unitThose steps or unit that method, system, product or equipment are not necessarily limited to clearly list, but can comprise do not have clearList or for these processes, method, product or equipment intrinsic other step or unit.
Embodiment 1
According to the embodiment of the present invention, a kind of embodiment of detection method of partial discharge monitoring system is provided, needBright, can be in the computer system such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawingMiddle execution, and, although there is shown logical order in flow process, in some cases, can be to be different fromOrder is herein carried out shown or described step.
Fig. 1 is according to the flow chart of the detection method of a kind of optional partial discharge monitoring system of the embodiment of the present invention,As shown in Figure 1, the method comprises the steps:
Step S102, receives first signal, wherein, by signal generator, primary signal is sent to the first power instrumentAfter, the first power instrument obtains first signal after primary signal is processed;
Step S104, judges whether first signal meets preset signals testing conditions;
Step S106, if first signal does not meet preset signals testing conditions, determines the first power instrument property abnormality,And carry out alarm.
In embodiments of the present invention, adopt and be received from the first power instrument to the primary signal place being sent by signal generatorAfter reason, obtain the mode of first signal, by judging whether first signal meets preset signals testing conditions, if reachedFirst signal does not meet preset signals testing conditions, determines the first power instrument property abnormality the order that carries out alarm, improve the technique effect of power supply unit state-detection efficiency thereby realized, and then solved confession of the prior artThe lower technical problem of electricity Condition Detection efficiency.
Wherein, receiving first signal can be completed by oscillograph or backstage surveillance, and this backstage surveillance can beThere is computer or the special signal treatment facility of signal reception, signal processing and analyzing function. This signal generator canThink standard local discharge signal generator, in order to simulate the local discharge signal of power supply unit. This first power instrumentCan be ultra high-frequency partial discharge sensor, can be also signal conditioner. This primary signal can be for to be occurred by signalThe pulse signal with certain amplitude that device generates. It should be noted that, if this first power instrument is signal conditioner,The amplitude that receives the primary signal of signal generator transmission need receive signal amplitude model in the permission of this signal conditionerWithin enclosing, for example, it is [55dBm ,-20dBm] that the permission of this signal conditioner receives signal amplitude scope, can connectReceive the amplitude that signal generator sends and be-55dBm ,-40dBm or-primary signal of 20dBm etc.
Alternatively, judge whether first signal meets preset signals testing conditions and also can complete by backstage monitoring system,Backstage monitoring system can record numerical value and the signal spectrogram of first signal, and record value and power supply unit are put into operationAfter first check results compare, thereby judge whether this first signal meets preset signals testing conditions.
Alternatively, Fig. 2 is according to the detection method of a kind of optional partial discharge monitoring system of the embodiment of the present inventionSchematic diagram, as shown in Figure 2, signal conditioner 21 by coaxial cable 24 respectively with backstage surveillance 23 and extra-high-speedFrequently local discharge sensor 26 connects, and standard local discharge signal generator 22 is by coaxial cable 24 and superfrequency officePortion's discharge sensor 26 connects, and wherein, this coaxial cable 24 arranges with ultra high-frequency partial discharge sensor 26 junctionsThere is primary signal decanting point 25. In the testing process of power instrument, can be by standard local discharge signal generator 22Output frequency be set to 50Hz, the width of the primary signal that adjustment criteria local discharge signal generator 22 generates thenValue, makes the amplitude of this primary signal lentamente by little increase, in this process, observes the by backstage surveillance 23The signal spectrogram of one signal, if the signal spectrogram of this first signal can be stablized this primary signal of reflection with 2 times of signal to noise ratios,Start to record the signal amplitude of the first signal that this standard local discharge signal generator 22 generates.
Alternatively, Fig. 3 is according to the detection method of a kind of optional partial discharge monitoring system of the embodiment of the present inventionSchematic diagram, as shown in Figure 3, signal conditioner 32 monitors with standard local discharge signal generator 31 and backstage respectivelySystem 33 connects by coaxial cable. Wherein, this standard local discharge signal generator 31 can be according to certain frequencyRepeat to generate and send the pulse signal of simulation shelf depreciation, the rising edge of a pulse (20%, 80%) of this pulse signal is littleIn 400ps, pulse width is not less than 10ns, and output voltage is adjustable and maximum peak voltage is not less than 200V. This signalConditioner 32 can be signal amplifier, this signal amplifier can for amplify ultrahigh-frequency signal, andIn the scope of [300Mhz, 3000Mhz], make signal gain reach the arbitrary numerical value in [35dB, 45dB] scope.
Alternatively, determine that the first power instrument property abnormality can be completed by the computer being connected with background monitor, entersRow alarm can be completed by the alarm device being connected with this computer, and this alarm device carries out the mode of alarm and can accuse for acousto-opticPolice, word alarm or short message alarm.
Alternatively, judge whether first signal meets preset signals testing conditions and comprise: the signal width that judges first signalWhether value variable quantity is within preset signals amplitude variable quantity scope; If the signal amplitude variable quantity of first signal is defaultWithin signal amplitude variable quantity scope, determine that first signal meets preset signals testing conditions; If the letter of first signalNumber amplitude variable quantity, not within preset signals amplitude variable quantity scope, determines that first signal does not meet preset signals inspectionSurvey condition.
For example, if the signal amplitude variable quantity of first signal within certain time period is 12%, preset signals amplitude changesWeight range is [10%, 10%], this first signal not within preset signals amplitude variable quantity scope, therefore, canDetermine that this first signal does not meet preset signals testing conditions. Wherein, this first signal can be continuous signal, also canThink discrete signal, the signal amplitude variable quantity of this first signal can be by the backstage that possesses signal processing and analyzing functionSurveillance obtains as calculated, also can be calculated and be obtained by the computer being connected with this backstage surveillance.
Alternatively, Fig. 4 is according to the detection method of a kind of optional partial discharge monitoring system of the embodiment of the present inventionFlow chart, as shown in Figure 4, the method comprises the steps:
Step S402, receives secondary signal, wherein, by signal generator, primary signal is sent through the first power instrumentTo the second power instrument, the first power instrument with the second power instrument being connected with the first power instrument to primary signalAfter processing, obtain secondary signal;
Step S404, judges whether secondary signal meets preset signals testing conditions;
Step S406, if secondary signal does not meet preset signals testing conditions, determines the first power instrument and/or theTwo power instrument property abnormalities, and carry out alarm.
Wherein, receive secondary signal can be completed by oscillograph, this oscillograph can with the direct phase of this second power instrumentConnect. This first power instrument and this second power instrument are at least passed through in the transmission of this secondary signal. If this secondary signal is notMeet preset signals testing conditions, determine that the first power instrument and/or the second power instrument property abnormality can be by showing with thisThe computer that ripple device connects completes, and carrying out alarm can be completed by the alarm device being connected with this computer, and this alarm device entersThe mode of row alarm can be audible and visual alarm, word alarm or short message alarm.
Alternatively, Fig. 5 is according to the detection method of a kind of optional partial discharge monitoring system of the embodiment of the present inventionSchematic diagram, as shown in Figure 5, oscillograph 51 is connected by coaxial cable 53 with ultra high-frequency partial discharge sensor 54,Standard local discharge signal generator 52 is connected by coaxial cable 53 with ultra high-frequency partial discharge sensor 54, wherein,This coaxial cable 53 is provided with primary signal decanting point with ultra high-frequency partial discharge sensor 54 junctions. At electric power instrumentIn the testing process of device, output frequency that can standard local discharge signal generator 52 is set to 50Hz, thenThe amplitude of the primary signal that adjustment criteria local discharge signal generator 52 generates, makes the amplitude of this primary signal lentamenteBy little increase, in this process, observe the signal spectrogram of first signal by oscillograph 51, if the letter of this first signalNumber spectrogram can, with this primary signal of the stable reflection of 2 times of signal to noise ratios, start to record this standard local discharge signal and occurThe signal amplitude of the first signal that device 52 generates.
Alternatively, the first power instrument and the second power instrument are sensor.
It should be noted that, this sensor can be ultra high-frequency partial discharge sensor, and this sensor is on power supply unitMounting means can be built-in, external or shading ring orifice type. For the accuracy that ensures that power instrument detects,Can select same producer, same model, warp to test and reach the sensor of same testing level with dispatching from the factory of supervisorAs the first power instrument in the application and the second power instrument.
Alternatively, this detection method also comprises: whether the outward appearance that detects the first power instrument meets default outward appearance condition;If the outward appearance of the first power instrument meets default outward appearance condition, determine that the outward appearance of the first power instrument is normal; If firstThe outward appearance of power instrument does not meet default outward appearance condition, determines the abnormal appearance of the first power instrument, wherein, and firstThe outward appearance of power instrument comprise following one of at least: shell, electrodeposited coating, oxide layer, the coat of paint, instrument mark.
Whether wherein, detect the outward appearance of the first power instrument meets default outward appearance condition and can complete by scanner.This detection is intended to determine whether the outward appearance of this first power instrument occurs that following situation one of at least: this first power instrumentShell shell that obvious deformation, this first power instrument do not occur there is not the shell of orifice, this first power instrumentThere is not the oxygen of aliquation or peeling phenomenon, this first power instrument in the electrodeposited coating that does not occur wedge angle, this first power instrumentChange the coat of paint that aliquation or peeling phenomenon, this first power instrument do not appear in layer and do not occur aliquation or peeling phenomenon and shouldThe instrument mark of the first power instrument (information such as instrument model, instrument numbering, instrument manufacturer, instrument date of productionMark) can not identify etc. It should be noted that, the detected object of this detection can also be for removing the first electric power instrumentOther power instruments of device, for example signal power amplifier, traffic filter, signal picker, signal conditioner,Signal generator etc.
In embodiments of the present invention, adopt and be received from the first power instrument to the primary signal place being sent by signal generatorAfter reason, obtain the mode of first signal, by judging whether first signal meets preset signals testing conditions, if reachedFirst signal does not meet preset signals testing conditions, determines the first power instrument property abnormality the order that carries out alarm, improve the technique effect of power supply unit state-detection efficiency thereby realized, and then solved confession of the prior artThe lower technical problem of electricity Condition Detection efficiency.
Embodiment 2
According to another aspect of the embodiment of the present invention, a kind of checkout gear of partial discharge monitoring system is also provided,As shown in Figure 6, this checkout gear comprises:
The first receiving element 61, for receiving first signal, wherein, is sent to by signal generator by primary signalAfter one power instrument, the first power instrument obtains first signal after primary signal is processed;
The first judging unit 62, for judging whether first signal meets preset signals testing conditions;
The first determining unit 63, if do not meet preset signals testing conditions for first signal, determines the first electric power instrumentDevice property abnormality, and carry out alarm.
Wherein, receiving first signal can be completed by oscillograph or backstage surveillance, and this backstage surveillance can beThere is computer or the special signal treatment facility of signal reception, signal processing and analyzing function. This signal generator canThink standard local discharge signal generator, in order to simulate the local discharge signal of power supply unit. This first power instrumentCan be ultra high-frequency partial discharge sensor, can be also signal conditioner. This primary signal can be for to be occurred by signalThe pulse signal with certain amplitude that device generates. It should be noted that, if this first power instrument is signal conditioner,The amplitude that receives the primary signal of signal generator transmission need receive signal amplitude model in the permission of this signal conditionerWithin enclosing, for example, it is [55dBm ,-20dBm] that the permission of this signal conditioner receives signal amplitude scope, canReceive the amplitude that signal generator sends and be-55dBm ,-40dBm or-primary signal of 20dBm etc.
Alternatively, judge whether first signal meets preset signals testing conditions and also can complete by backstage monitoring system,Backstage monitoring system can record numerical value and the signal spectrogram of first signal, and record value and power supply unit are put into operationAfter first check results compare, thereby judge whether this first signal meets preset signals testing conditions.
Alternatively, determine that the first power instrument property abnormality can be completed by the computer being connected with background monitor, entersRow alarm can be completed by the alarm device being connected with this computer, and this alarm device carries out the mode of alarm and can accuse for acousto-opticPolice, word alarm or short message alarm.
Alternatively, the first judging unit comprises: judgment sub-unit, and for judging the signal amplitude variable quantity of first signalWhether within preset signals amplitude variable quantity scope; First determines subelement, if for the signal amplitude of first signalVariable quantity, within preset signals amplitude variable quantity scope, determines that first signal meets preset signals testing conditions; TheTwo determine subelements, if for the signal amplitude variable quantity of first signal not within preset signals amplitude variable quantity scope,Determine that first signal does not meet preset signals testing conditions.
For example, if the signal amplitude variable quantity of first signal within certain time period is 12%, preset signals amplitude changesWeight range is [10%, 10%], this first signal not within preset signals amplitude variable quantity scope, therefore, canDetermine that this first signal does not meet preset signals testing conditions. Wherein, this first signal can be continuous signal, also canThink discrete signal, the signal amplitude variable quantity of this first signal can be by the backstage that possesses signal processing and analyzing functionSurveillance obtains as calculated, also can be calculated and be obtained by the computer being connected with this backstage surveillance.
Alternatively, device also comprises: the second receiving element, and for receiving secondary signal, wherein, by signal generatorBy primary signal after the first power instrument is sent to the second power instrument, the first power instrument and with the first power instrumentThe second power instrument connecting obtains secondary signal after primary signal is processed; The second judging unit, for judging secondWhether signal meets preset signals testing conditions; The second determining unit, if do not meet preset signals inspection for secondary signalSurvey condition, determines the first power instrument and/or the second power instrument property abnormality, and carries out alarm.
Wherein, receive secondary signal can be completed by oscillograph, this oscillograph can with the direct phase of this second power instrumentConnect. This first power instrument and this second power instrument are at least passed through in the transmission of this secondary signal. If this secondary signal is notMeet preset signals testing conditions, determine that the first power instrument and/or the second power instrument property abnormality can be by showing with thisThe computer that ripple device connects completes, and carrying out alarm can be completed by the alarm device being connected with this computer, and this alarm device entersThe mode of row alarm can be audible and visual alarm, word alarm or short message alarm.
Alternatively, the first power instrument and the second power instrument are sensor.
It should be noted that, this sensor can be ultra high-frequency partial discharge sensor, and this sensor is on power supply unitMounting means can be built-in, external or shading ring orifice type. For the accuracy that ensures that power instrument detects,Can select same producer, same model, warp to test and reach the sensor of same testing level with dispatching from the factory of supervisorAs the first power instrument in the application and the second power instrument.
Alternatively, this checkout gear also comprises: whether detecting unit, meet for detection of the outward appearance of the first power instrumentDefault outward appearance condition; The 3rd determining unit, if meet default outward appearance condition for the outward appearance of the first power instrument, trueThe outward appearance of fixed the first power instrument is normal; The 4th determining unit, if do not meet default for the outward appearance of the first power instrumentOutward appearance condition, the abnormal appearance of definite the first power instrument, wherein, the outward appearance of the first power instrument comprises extremely followingOne of few: shell, electrodeposited coating, oxide layer, the coat of paint, instrument mark.
Whether wherein, detect the outward appearance of the first power instrument meets default outward appearance condition and can complete by scanner.This detection is intended to determine whether the outward appearance of this first power instrument occurs that following situation one of at least: this first power instrumentShell shell that obvious deformation, this first power instrument do not occur there is not the shell of orifice, this first power instrumentThere is not the oxygen of aliquation or peeling phenomenon, this first power instrument in the electrodeposited coating that does not occur wedge angle, this first power instrumentChange the coat of paint that aliquation or peeling phenomenon, this first power instrument do not appear in layer and do not occur aliquation or peeling phenomenon and shouldThe instrument mark of the first power instrument (information such as instrument model, instrument numbering, instrument manufacturer, instrument date of productionMark) can not identify etc. It should be noted that, the detected object of this detection can also be for removing the first electric power instrumentOther power instruments of device, for example signal power amplifier, traffic filter, signal picker, signal conditioner,Signal generator etc.
In embodiments of the present invention, adopt and be received from the first power instrument to the primary signal place being sent by signal generatorAfter reason, obtain the mode of first signal, by judging whether first signal meets preset signals testing conditions, if reachedFirst signal does not meet preset signals testing conditions, determines the first power instrument property abnormality the order that carries out alarm, improve the technique effect of power supply unit state-detection efficiency thereby realized, and then solved confession of the prior artThe lower technical problem of electricity Condition Detection efficiency.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, do not haveThe part describing in detail, can be referring to the associated description of other embodiment.
In the several embodiment that provide in the application, should be understood that, disclosed technology contents, can pass through otherMode realize. Wherein, device embodiment described above is only schematically, the division of for example described unit,Can be that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple unit or assemblyCan in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out. Another point, instituteThe coupling each other showing or discuss or direct-coupling or communication connection can be by some interfaces, unit or mouldThe INDIRECT COUPLING of piece or communication connection can be electrical or other form.
The described unit as separating component explanation can or can not be also physically to separate, aobvious as unitThe parts that show can be or can not be also physical locations, can be positioned at a place, or also can be distributed toOn multiple unit. Can select according to the actual needs some or all of unit wherein to realize the present embodiment schemeObject.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing unit, also canBe that the independent physics of unit exists, also can be integrated in a unit two or more unit. Above-mentioned integratedUnit both can adopt hardware form realize, also can adopt SFU software functional unit form realize.
If described integrated unit is realized and during as production marketing independently or use using the form of SFU software functional unit,Can be stored in a computer read/write memory medium. Based on such understanding, technical scheme essence of the present inventionOn the part that in other words prior art contributed or this technical scheme all or part of can be with software productForm embodies, and this computer software product is stored in a storage medium, comprises that some instructions are in order to make onePlatform computer equipment (can be personal computer, server or the network equipment etc.) is carried out each embodiment institute of the present inventionState all or part of step of method. And aforesaid storage medium comprises: USB flash disk, read-only storage (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), portable hard drive, magnetic disc or CDEtc. various media that can be program code stored.
The above is only the preferred embodiment of the present invention, it should be pointed out that the ordinary skill people for the artMember, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvement and profitDecorations also should be considered as protection scope of the present invention.
Claims (10)
1. a detection method for partial discharge monitoring system, is characterized in that, comprising:
Receive first signal, wherein, by signal generator, primary signal is sent to after the first power instrument to instituteState after the first power instrument is processed described primary signal and obtain described first signal;
Judge whether described first signal meets preset signals testing conditions;
If described first signal does not meet described preset signals testing conditions, determine described the first power instrumentCan be abnormal, and carry out alarm.
2. method according to claim 1, is characterized in that, described to judge that whether described first signal meets defaultCondition detection signal comprises:
Judge that the signal amplitude variable quantity of described first signal is whether within preset signals amplitude variable quantity scope;
If the signal amplitude variable quantity of described first signal is within described preset signals amplitude variable quantity scope,Determine that described first signal meets described preset signals testing conditions;
If the signal amplitude variable quantity of described first signal not within described preset signals amplitude variable quantity scope,Determine that described first signal does not meet described preset signals testing conditions.
3. method according to claim 1, is characterized in that, described method also comprises:
Receive secondary signal, wherein, by described signal generator by described primary signal through described the first electric power instrumentDevice is sent to after the second power instrument, described the first power instrument be connected with described the first power instrument described inThe second power instrument obtains described secondary signal after described primary signal is processed;
Judge whether described secondary signal meets described preset signals testing conditions;
If described secondary signal does not meet described preset signals testing conditions, determine described the first power instrument and/Or described the second power instrument property abnormality, and carry out alarm.
4. method according to claim 3, is characterized in that, described the first power instrument and described the second electric power instrumentDevice is sensor.
5. according to the method described in any one in claim 1 to 4, it is characterized in that, described method also comprises:
Whether the outward appearance that detects described the first power instrument meets default outward appearance condition;
If the outward appearance of described the first power instrument meets described default outward appearance condition, determine described the first electric power instrumentThe outward appearance of device is normal;
If the outward appearance of described the first power instrument does not meet described default outward appearance condition, determine described the first electric powerThe abnormal appearance of instrument,
Wherein, the outward appearance of described the first power instrument comprise following one of at least: shell, electrodeposited coating, oxide layer,The coat of paint, instrument mark.
6. a checkout gear for partial discharge monitoring system, is characterized in that, comprising:
The first receiving element, for receiving first signal, wherein, is sent to primary signal by signal generatorAfter the first power instrument, described the first power instrument obtains described first signal after described primary signal is processed;
The first judging unit, for judging whether described first signal meets preset signals testing conditions;
The first determining unit, if do not meet described preset signals testing conditions for described first signal, determinesDescribed the first power instrument property abnormality, and carry out alarm.
7. device according to claim 6, is characterized in that, described the first judging unit comprises:
Judgment sub-unit, for the signal amplitude variable quantity that judges described first signal whether in preset signals amplitudeWithin variable quantity scope;
First determines subelement, if for the signal amplitude variable quantity of described first signal at described preset signals widthWithin value variable quantity scope, determine that described first signal meets described preset signals testing conditions;
Second determines subelement, if for the signal amplitude variable quantity of described first signal not in described preset signalsWithin amplitude variable quantity scope, determine that described first signal does not meet described preset signals testing conditions.
8. device according to claim 6, is characterized in that, described device also comprises:
The second receiving element, for receiving secondary signal, wherein, by described signal generator by described original letterNumber be sent to after the second power instrument described the first power instrument and with described first through described the first power instrumentDescribed the second power instrument that power instrument connects obtains described secondary signal after described primary signal is processed;
The second judging unit, for judging whether described secondary signal meets described preset signals testing conditions;
The second determining unit, if do not meet described preset signals testing conditions for described secondary signal, determinesDescribed the first power instrument and/or described the second power instrument property abnormality, and carry out alarm.
9. device according to claim 8, is characterized in that, described the first power instrument and described the second electric power instrumentDevice is sensor.
10. according to the device described in any one in claim 6 to 9, it is characterized in that, described device also comprises:
Whether detecting unit, meet default outward appearance condition for detection of the outward appearance of described the first power instrument;
The 3rd determining unit, if meet described default outward appearance condition for the outward appearance of described the first power instrument,The outward appearance of determining described the first power instrument is normal;
The 4th determining unit, if do not meet described default outward appearance condition for the outward appearance of described the first power instrument,Determine the abnormal appearance of described the first power instrument,
Wherein, the outward appearance of described the first power instrument comprise following one of at least: shell, electrodeposited coating, oxide layer,The coat of paint, instrument mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940139.9A CN105589018A (en) | 2015-12-15 | 2015-12-15 | Detection method and device for partial discharge monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510940139.9A CN105589018A (en) | 2015-12-15 | 2015-12-15 | Detection method and device for partial discharge monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019197A (en) * | 2016-05-19 | 2016-10-12 | 国家电网公司 | Detection device and method of signal conditioner |
| CN106168657A (en) * | 2016-07-07 | 2016-11-30 | 国网北京市电力公司 | Signal conditioner and detection method thereof and device |
-
2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019197A (en) * | 2016-05-19 | 2016-10-12 | 国家电网公司 | Detection device and method of signal conditioner |
| CN106168657A (en) * | 2016-07-07 | 2016-11-30 | 国网北京市电力公司 | Signal conditioner and detection method thereof and device |
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Application publication date: 20160518 |