CN106556784A - A kind of method and device for simulating different degrees of GIS Partial discharge signals - Google Patents
A kind of method and device for simulating different degrees of GIS Partial discharge signals Download PDFInfo
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- CN106556784A CN106556784A CN201710050837.0A CN201710050837A CN106556784A CN 106556784 A CN106556784 A CN 106556784A CN 201710050837 A CN201710050837 A CN 201710050837A CN 106556784 A CN106556784 A CN 106556784A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000007547 defect Effects 0.000 claims abstract description 48
- 238000004088 simulation Methods 0.000 claims abstract description 16
- 238000010586 diagram Methods 0.000 claims abstract description 13
- 238000011161 development Methods 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 2
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- 238000010616 electrical installation Methods 0.000 description 1
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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
- G01R31/1227—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 of components, parts or materials
- G01R31/1263—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 of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1281—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 of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of liquids or gases
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- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to Cubicle Gas-Insulated Switchgear（GIS）Insulating monitoring field, and in particular to a kind of method and device of the different degrees of GIS Partial discharge signals of simulation, the method include：Four stages corresponding pulse source frequency signal is put in preset different GIS Exemplary insulatives defect Partial discharge signal envelope diagram drawn games in the microprocessor；When the different degrees of Partial discharge signal of Simulated GlS Exemplary insulative defect is needed, the signal envelope figure of correspondence defect can be intercepted to the pulse signal of respective stage, obtain the Partial discharge signal of varying strength under difference GIS Exemplary insulative defects.The method and device overcome GIS partial discharge detections field and cannot provide the problem that the different defect types of true simulation, different offices put stage signal, Partial discharge signal source different degrees of under true simulation different insulative defect can be provided, solve the problems, such as that cannot carry out GIS ultrahigh frequency detecting system effectiveness and significant degree judges, it is shown that huge application prospect.
Description
Technical field
The invention belongs to Cubicle Gas-Insulated Switchgear（GIS）Insulating monitoring field, more particularly to a kind of simulation
The method and device of different degrees of GIS Partial discharge signals.
Background technology
Shelf depreciation（Abbreviation office puts）It is the non-through electric discharge phenomena caused due to local defect in dielectric, root
The difference of degree is put according to office, office lets slip journey and can be divided into starting, generation, development, dangerous four-stage, long-term shelf depreciation
Apparatus insulated deterioration can be caused, result even in insulation puncture and equipment stop transport, be electrical network safe operation bring it is huge
Big potential safety hazard.It itself is also the key character amount for characterizing insulation of electrical installation situation to put with the current political situation, effectively can be reflected electrically
The insulation fault of equipment, so the effective monitoring put of playing a game can be prevented effectively from and cause equipment thing because of the continuous development of insulation defect
Therefore generation, strengthen electrical network stability.One of equipment as most expensive in power system, the partial discharge detection of GIS are always
The popular problem of research, superfrequency method are extensively assembled in electrical network as the effective means of GIS partial discharge detections, but, due to lacking
The weary apparatus and method for being capable of authentic and valid simulation GIS Partial discharge signal, it is impossible to carry out GIS ultrahigh frequency detecting system effectiveness and
Significant degree judges, causes the effectiveness of the superfrequency monitoring system that grid company cannot effectively to being currently in use to be sentenced
It is disconnected, or even some faulty superfrequency detecting systems, yet in operation, the normal operation to electrical network brings huge safety
Hidden danger.
The content of the invention
An object of the present invention is to provide a kind of side for being capable of the different degrees of GIS Partial discharge signals of authentic and valid simulation
Method.
It is a further object to provide a kind of improved GIS Partial discharge signals source device, can put according to office and " rise
Different degrees of Partial discharge signal under beginning, generation, development, danger " the authentic and valid simulation GIS Exemplary insulative defect of four-stage.
To realize above-mentioned first purpose, the technical solution used in the present invention is：Letter is put in the different degrees of GIS offices of one kind simulation
Number method, the method includes：
It is corresponding that step 1, in the microprocessor preset different GIS Exemplary insulatives defect Partial discharge signal envelope diagram drawn games put for four stages
Pulse source frequency signal；
Step 2, when the different degrees of Partial discharge signal of Simulated GlS Exemplary insulative defect is needed, the signal envelope figure meeting of correspondence defect
The pulse signal of respective stage is intercepted, the Partial discharge signal of varying strength under difference GIS Exemplary insulative defects is obtained.
In the method for the above-mentioned different degrees of GIS Partial discharge signals of simulation, the realization of step 1 includes：Obtain GIS typical cases absolutely
Edge defect phase place-electric discharge amplitude signal, extracts its envelope diagram, and 360 grade point threshold process are carried out to envelope diagram；Obtain GIS typical
Phase place-discharge time the signal under intensity is put in insulation defect difference office, and signal carries out quarter to pulse source signal frequency accordingly
Divide；Envelope signal and frequency signal after process is stored in microprocessor ROM.
In the method for the different degrees of GIS Partial discharge signals of above-mentioned simulation, it is according to phase place-discharge time that four stages put in office
Signal is divided into starting, generation, development, dangerous four stage to insulation partial discharge process, and the office in each stage is rivals in a contest and answers an arteries and veins
Rush the pulse signal of source signal frequency.
In the method for the above-mentioned different degrees of GIS Partial discharge signals of simulation, 360 grade point threshold process are to a power frequency week
Phase place in phase 20ms-electric discharge amplitude envelope figure carries out the digitized of 360 equal portions according to time coordinate；Less than defined threshold
When, the time point corresponding envelope value is set to into 0 directly.
In the method for the above-mentioned different degrees of GIS Partial discharge signals of simulation, the realization of step 2 includes：Selection needs simulation
Different insulative defect under different degrees of Partial discharge signal, including starting, occur, developmental stage correspondence is put in development, dangerous difference offices
Pulse signal and the corresponding phase place of different insulative defect-electric discharge amplitude envelope signal；Envelope signal pulse signals carry out cutting
Take, obtain varying strength Partial discharge signal under different defects.
To realize second object of the present invention, the technical scheme of employing is：It is a kind of to put for simulating different degrees of GIS offices
The device of signal, including control panel, the microprocessor being connected with control panel and the pulse source being connected with microprocessor；
Different offices under the different defect types simulated are wanted by control panel selection and puts instruction corresponding to the stage, when microprocessor is received
A feedback command will be sent to control panel to the instruction, put the stage while sending to pulse source and type drawn game being put comprising office
Dope vector；
Letter is put when pulse source device receives the dope vector GIS offices under different type varying strength will be sent according to dope vector
Number, and while a feedback command is sent to microprocessor, just interruption passes through one immediately when microprocessor receives the feedback command
Pin output sync pulse signal.
The invention has the beneficial effects as follows：Overcome GIS partial discharge detections field and true Simulated GlS Partial discharge signal source cannot be provided
Problem, using the teaching of the invention it is possible to provide different degrees of Partial discharge signal source under true Simulated GlS Exemplary insulative defect.
Description of the drawings
The GIS Partial discharge signal source device schematic diagrams of Fig. 1 one embodiment of the invention；
Preset signal flow charts of the Fig. 2 for one embodiment of the invention；
Workflow diagrams of the Fig. 3 for one embodiment of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the present invention are described in detail.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from start to finish
As element or the element with same or like function.Below with reference to Description of Drawings embodiment be it is exemplary, only
For explaining the present invention, and it is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the part and setting of specific examples are described.They are only merely illustrative, and purpose is not
It is to limit the present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.This repetition be for
Simplify and clearly purpose, itself do not indicate the relation between discussed various embodiments and/or setting.Additionally, this
It is bright there is provided various specific techniques and the example of material, but those of ordinary skill in the art can be appreciated that other techniques
The use of applicability and/or other materials.In addition, fisrt feature described below second feature it " on " structure can be with
Be formed as the embodiment of directly contact including the first and second features, it is also possible to first and second are formed in including other feature
Embodiment between feature, such first and second feature may not be directly contact.
In description of the invention, it should be noted that unless otherwise prescribed and limiting, term " being connected " " connection " should do extensively
Reason and good sense solution, for example, it may be being mechanically connected or electrical connection, or the connection of two element internals, can be joined directly together,
Can also be indirectly connected to by intermediary, for those of ordinary skill in the related art, can be managed as the case may be
Solve the concrete meaning of above-mentioned term.
The technical scheme that the present embodiment is adopted is as follows：A kind of method for simulating different degrees of GIS Partial discharge signals, the method bag
Include：
It is corresponding that step 1, in the microprocessor preset different GIS Exemplary insulatives defect Partial discharge signal envelope diagram drawn games put for four stages
Pulse source frequency signal；
Step 2, when the different degrees of Partial discharge signal of Simulated GlS Exemplary insulative defect is needed, the signal envelope figure meeting of correspondence defect
The pulse signal of respective stage is intercepted, the Partial discharge signal of varying strength under difference GIS Exemplary insulative defects is obtained.
Further, the realization of step 1 includes：GIS Exemplary insulatives defect phase place-electric discharge amplitude signal is obtained, its bag is extracted
Network figure, carries out 360 grade point threshold process to envelope diagram；Obtain GIS Exemplary insulatives defect difference office and put the phase place-electric discharge under intensity
Times signal, accordingly signal quarter division is carried out to pulse source signal frequency；By envelope signal and frequency signal after process
It is stored in microprocessor ROM.
Further, office put four stages be according to phase place-discharge time signal insulation partial discharge process is divided into starting, send out
Raw, development, dangerous four stage, the office in each stage is rivals in a contest and answers the pulse signal of a pulse source signal frequency.
Further, 360 grade point threshold process be to the phase place in a power frequency period 20ms-electric discharge amplitude envelope figure according to
Time coordinate carries out the digitized of 360 equal portions；When less than defined threshold, the time point corresponding envelope value is set to into 0 directly.
Further, the realization of step 2 includes：Choose different degrees of office under the different insulative defect for needing to simulate and put letter
Number, including initial, generation, development, the corresponding pulse signal of developmental stage is put in dangerous difference offices and different insulative defect is corresponding
Phase place-electric discharge amplitude envelope signal；Envelope signal pulse signals are intercepted, and are obtained varying strength office under different defects and are put letter
Number.
A kind of device for simulating different degrees of GIS Partial discharge signals, including control panel, the microprocessor being connected with control panel
Device and the pulse source being connected with microprocessor；
Different offices under the different defect types simulated are wanted by control panel selection and puts instruction corresponding to the stage, when microprocessor is received
A feedback command will be sent to control panel to the instruction, put the stage while sending to pulse source and type drawn game being put comprising office
Dope vector；
Letter is put when pulse source device receives the dope vector GIS offices under different type varying strength will be sent according to dope vector
Number, and while a feedback command is sent to microprocessor, just interruption passes through one immediately when microprocessor receives the feedback command
Pin output sync pulse signal.
When the present embodiment is implemented, as shown in figure 1, the device for simulating different degrees of GIS Partial discharge signals, including according to
The control panel of secondary connection, microprocessor and pulse source.Its course of work is as follows：The difference for wanting to simulate is selected to lack by control panel
Under sunken type, stage corresponding instruction is put in different offices, will refer to one feedback of control panel transmission when microprocessor receives the instruction
Order, while send to pulse source putting the dope vector that the stage is put in type drawn game comprising office, believes when pulse source device receives the array
Breath will send GIS Partial discharge signals under different type varying strength according to dope vector, and while anti-to microprocessor transmission one
Feedback instruction, just interrupts by a pin output sync pulse signal immediately when microprocessor receives the feedback command.
As shown in Fig. 2 the method for the different degrees of GIS Partial discharge signals of simulation, obtains GIS Exemplary insulatives defect first at one
" phase place-electric discharge amplitude " signal and GIS Exemplary insulatives defect of power frequency period puts the " phase place-electric discharge time under intensity in different offices
Number " signal；Then " phase place-electric discharge amplitude " signal envelope figure is extracted, " phase place-electric discharge amplitude " signal envelope figure is carried out
360 grades point threshold process, and according to " phase place-discharge time " signal by office put intensity be divided into " starting, occur, development, danger
Danger " four-stage, it is right that the impulse ejection frequency of pulse source was divided into according to " starting, occur, development, dangerous " four stages for obtaining
Four frequencies answered, are stored in microprocessor ROM to the envelope signal after process.
As shown in figure 3, varying strength Partial discharge signal then can be by the pulse signal of respective frequencies and right under different insulative defect
" phase place-electric discharge amplitude " envelope signal synthesis answered.
And, 360 grade point threshold process are to a power frequency period（20ms）Interior " phase place-electric discharge amplitude " envelope diagram is pressed
The digitized of 360 equal portions is carried out according to time coordinate, and when less than defined threshold, directly by the time point corresponding envelope value
It is set to 0.
And, " phase place-electric discharge amplitude " signal is the Partial discharge signal of GIS different insulative defects.
And, " phase place-discharge time " signal is different degrees of Partial discharge signal under GIS different insulative defects.
And, office put four stage of intensity be according to the difference of GIS insulation partial discharge degree divided " starting, occur, send out
Four stages of exhibition, danger ".
And, " starting, generation, development, danger " four stages are divided according to " phase place-discharge time " signal.
And, four stages put in " starting, generation, development, danger " office, the pulse signal of each stage one frequency of correspondence.
Operation principle：" phase place-electric discharge amplitude " signal and Exemplary insulative that the Exemplary insulative defect office of GIS puts are extracted first
Under defect, " phase place-discharge time " signal under degree is put in different offices, extracts " phase place-electric discharge amplitude " signal envelope figure, to " phase
Position-electric discharge amplitude " envelope diagram carries out 360 grade point threshold process, and according to " phase place-discharge time " signal by insulation partial discharge process
It is divided into " starting, occur, development, dangerous " four stages, the frequency in pulse signals source is according to " starting, occur, development, dangerous "
Four stages were divided, i.e. the pulse signal for corresponding to a frequency is put in the office in each stage, and when needing, Simulated GlS typical case is exhausted
During the different degrees of Partial discharge signal of edge defect, the signal envelope figure of correspondence defect can be intercepted to the pulse signal of respective stage,
The Partial discharge signal of varying strength under true Simulated GlS Exemplary insulative defect can be obtained.
Concrete operations：The office for wanting simulation is selected to put type and intensity instruction by control panel, when microprocessor receives this
Instruction will send a feedback command to control panel, while send to pulse source putting the array that the stage is put in type drawn game comprising office
Information, will send GIS Partial discharge signals under different type varying strength when pulse source receives the instruction according to dope vector, and together
When send a feedback command to microprocessor, just interrupt immediately by the output of pin when microprocessor receives the feedback command
Synchronization pulse.
It should be appreciated that the part that this specification is not elaborated belongs to prior art.
Although the specific embodiment of the present invention above in association with Description of Drawings, those of ordinary skill in the art should
Understand, these are merely illustrative of, and various deformation or modification can be made to these embodiments, without departing from the original of the present invention
Reason and essence.The scope of the present invention is only limited by the claims that follow.
Claims (6)
1. the method for the different degrees of GIS Partial discharge signals of a kind of simulation, it is characterised in that the method includes：
It is corresponding that step 1, in the microprocessor preset different GIS Exemplary insulatives defect Partial discharge signal envelope diagram drawn games put for four stages
Pulse source frequency signal；
Step 2, when the different degrees of Partial discharge signal of Simulated GlS Exemplary insulative defect is needed, the signal envelope figure meeting of correspondence defect
The pulse signal of respective stage is intercepted, the Partial discharge signal of varying strength under difference GIS Exemplary insulative defects is obtained.
2. the method for simulating different degrees of GIS Partial discharge signals as claimed in claim 1, it is characterised in that the realization bag of step 1
Include：GIS Exemplary insulatives defect phase place-electric discharge amplitude signal is obtained, its envelope diagram is extracted, 360 grade point threshold values is carried out to envelope diagram
Process；Phase place-discharge time signal that GIS Exemplary insulatives defect difference office is put under intensity is obtained, signal is believed to pulse source accordingly
Number frequency carries out quarter division；Envelope signal and frequency signal after process is stored in microprocessor ROM.
3. the method for simulating different degrees of GIS Partial discharge signals as claimed in claim 2, it is characterised in that four stages put in office is
Starting, generation, development, dangerous four stage, each stage are divided into according to phase place-discharge time signal to insulation partial discharge process
Office be rivals in a contest and answer the pulse signal of a pulse source signal frequency.
4. the method for simulating different degrees of GIS Partial discharge signals as claimed in claim 2, it is characterised in that at 360 grades point threshold value
Reason is the digitized for carrying out 360 equal portions to the phase place in a power frequency period 20ms-electric discharge amplitude envelope figure according to time coordinate；
When less than defined threshold, the time point corresponding envelope value is set to into 0 directly.
5. the method for simulating different degrees of GIS Partial discharge signals as claimed in claim 3, it is characterised in that the realization bag of step 2
Include：Selection needs different degrees of Partial discharge signal under the different insulative defect simulated, including starting, generation, development, the different offices of danger
Put the corresponding pulse signal of developmental stage and the corresponding phase place of different insulative defect-electric discharge amplitude envelope signal；Envelope signal pair
Pulse signal is intercepted, and obtains varying strength Partial discharge signal under different defects.
6. a kind of device for simulating different degrees of GIS Partial discharge signals, it is characterised in that including control panel, connect with control panel
The microprocessor for connecing and the pulse source being connected with microprocessor；
Different offices under the different defect types simulated are wanted by control panel selection and puts instruction corresponding to the stage, when microprocessor is received
A feedback command will be sent to control panel to the instruction, put the stage while sending to pulse source and type drawn game being put comprising office
Dope vector；
Letter is put when pulse source device receives the dope vector GIS offices under different type varying strength will be sent according to dope vector
Number, and while a feedback command is sent to microprocessor, just interruption passes through one immediately when microprocessor receives the feedback command
Pin output sync pulse signal.
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| CN201710050837.0A CN106556784A (en) | 2017-01-23 | 2017-01-23 | A kind of method and device for simulating different degrees of GIS Partial discharge signals |
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| CN201710050837.0A CN106556784A (en) | 2017-01-23 | 2017-01-23 | A kind of method and device for simulating different degrees of GIS Partial discharge signals |
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| JP2009145205A (en) * | 2007-12-14 | 2009-07-02 | Mitsubishi Electric Corp | Partial discharge inspection device |
| CN104198898A (en) * | 2014-08-04 | 2014-12-10 | 西安交通大学 | Local discharge development process diagnosis method based on pulse-train analysis |
| CN104330599A (en) * | 2014-10-22 | 2015-02-04 | 广东电网有限责任公司电力科学研究院 | Partial-discharge ultrahigh-frequency signal simulation source |
| CN204188674U (en) * | 2014-10-22 | 2015-03-04 | 广东电网有限责任公司电力科学研究院 | A kind of local discharge superhigh frequency signal imitation source |
| US20150355307A1 (en) * | 2013-08-26 | 2015-12-10 | The Electric Power Research Institute of Yunnan Power Grid Company Limited | Method for testing mainframe performance of different types of partial discharge detectors based on analog voltage signal injection |
| CN106338653A (en) * | 2016-11-01 | 2017-01-18 | 国家电网公司 | Typical interference simulator of partial discharge |
-
2017
- 2017-01-23 CN CN201710050837.0A patent/CN106556784A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145205A (en) * | 2007-12-14 | 2009-07-02 | Mitsubishi Electric Corp | Partial discharge inspection device |
| US20150355307A1 (en) * | 2013-08-26 | 2015-12-10 | The Electric Power Research Institute of Yunnan Power Grid Company Limited | Method for testing mainframe performance of different types of partial discharge detectors based on analog voltage signal injection |
| CN104198898A (en) * | 2014-08-04 | 2014-12-10 | 西安交通大学 | Local discharge development process diagnosis method based on pulse-train analysis |
| CN104330599A (en) * | 2014-10-22 | 2015-02-04 | 广东电网有限责任公司电力科学研究院 | Partial-discharge ultrahigh-frequency signal simulation source |
| CN204188674U (en) * | 2014-10-22 | 2015-03-04 | 广东电网有限责任公司电力科学研究院 | A kind of local discharge superhigh frequency signal imitation source |
| CN106338653A (en) * | 2016-11-01 | 2017-01-18 | 国家电网公司 | Typical interference simulator of partial discharge |
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