CN109541406A - A kind of method of the scene GIS impulse withstand voltage test - Google Patents
A kind of method of the scene GIS impulse withstand voltage test Download PDFInfo
- Publication number
- CN109541406A CN109541406A CN201811300411.7A CN201811300411A CN109541406A CN 109541406 A CN109541406 A CN 109541406A CN 201811300411 A CN201811300411 A CN 201811300411A CN 109541406 A CN109541406 A CN 109541406A
- Authority
- CN
- China
- Prior art keywords
- gis
- parameter
- test
- interval
- withstand voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—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
- G01R31/1254—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 gas-insulated power appliances or vacuum gaps
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to a kind of methods of scene GIS impulse withstand voltage test.Its main feature is that including the following steps: the equivalent parameters for 1) obtaining the subject each interval GIS, GIS distributed parameter model is constructed；2) distribution of the surge voltage in GIS is carried out according to distributed parameter model to calculate；3) the surge voltage parameter at each interval GIS is calculated；4) segmentation number is determined according to parameter；5) segmentation impulse withstand voltage test is carried out to GIS according to segmentation number.Test proves that can calculate the clearly each interval subject GIS by overvoltage using test method of the invention and bear the waveform parameter of overvoltage, to determine segmentation number according to waveform parameter, ensure that test efficiency and realize effect.
Description
Technical field
The present invention relates to a kind of methods of scene GIS impulse withstand voltage test.
Background technique
GIS (Gas Insulated switchgear) is the key equipment in power grid, safety small with occupied area
High reliablity, feature easy to maintain are currently the important power equipment largely used in power grid.Field test is to guarantee GIS
The Key experiments project of safe operation, the at present scene GIS impulse withstand voltage test are gradually carried out, and a batch is novel such as
Combined type, vehicular etc. are applicable in impulse withstand voltage testing equipment on site and live use also have been put into.
When carrying out live impulse withstand voltage test, conventional way often carries out whole impact to entire subject GIS at present
Pressure test, but since surge voltage is a kind of transient voltage, and often volume is relatively large by entirety GIS, bus length is longer,
This results in surge voltage, and there are wave processes in GIS, and there are wave distortions for surge voltage when propagating along GIS.Wave distortion is led
Although cause is met the requirements in the waveform that GIS head end injects, waveform is often unsatisfactory for requiring when traveling to certain intervals, causes
The unreliability of test result.Since the interval GIS is various, a large amount of time and people may require that if single interval is tested
Power, but test and will lead to the born waveform in certain intervals undesirable by entirety GIS.
Summary of the invention
The object of the present invention is to provide a kind of methods of scene GIS impulse withstand voltage test, can be realized higher test effect
The reliability of rate and experimental result.
A kind of method of the scene GIS impulse withstand voltage test, its special feature is that, include the following steps:
1) equivalent parameters for obtaining the subject each interval GIS, construct GIS distributed parameter model；
2) distribution of the surge voltage in GIS is carried out according to distributed parameter model to calculate；
3) the surge voltage parameter at each interval GIS is calculated；
4) segmentation number is determined according to parameter；
5) segmentation impulse withstand voltage test is carried out to GIS according to segmentation number.
Test proves that can be calculated by overvoltage using test method of the invention and clearly be tested GIS each
Every the waveform parameter for bearing overvoltage, to determine segmentation number according to waveform parameter, ensure that test efficiency and realize effect.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of the present invention.
Specific embodiment
The invention proposes a kind of method of scene GIS impulse withstand voltage test, this method is bright in the way of calculating in advance
Distribution characteristics of the true waveform in subject GIS, the segmentation number of subject GIS is proposed according to waveform parameter, that is, ensure that each quilt
The waveform that the examination interval GIS is born is met the requirements of the standard, and improves test efficiency to greatest extent.
A kind of method of scene GIS impulse withstand voltage test, includes the following steps:
ATP software mentioned below is a free standalone version of EMTP software, and EMTP software is for electric system
The simulation software of electromagnetic transient analysis, EMTP are Electro-Magnetic Transient Program (electromagnetic transient state procedure)
Acronym.
1) the spaced equivalent parameters of subject GIS institute are obtained, which can calculate or measure according to the dimensional structure of GIS and obtain
, can increase to calculate or measure by GIS size and obtain parameter, (in the softwares such as ATP) building subject GIS it is spaced
GIS distributed parameter model can construct circuit parameter model, which is base specifically after parameter calculates or measurement obtains
It is constructed in obtained parameter；
2) it carries out distribution of the surge voltage in GIS according to distributed parameter model to calculate, specifically in softwares such as ATP
In, building model can calculate, and software is calculated；
3) the surge voltage parameter for calculating each interval GIS can be counted after building Equivalent Model in the softwares such as ATP
Overvoltage is calculated, can determine the surge voltage parameter, such as amplitude, waveform etc. at each interval according to calculated result, this is in ATP
It is calculated in equal softwares；
4) according to parameter determine segmentation number, rule be distort after wave travel crosses certain length be unsatisfactory for standard
When " DLT 618-2011 Cubicle Gas-Insulated Switchgear scene commissioning test regulation ", it is believed that the length needs to carry out single
Solely test, is according to circumstances separated.Continue to calculate, continue to separate, it is known that all sections of waveform is all satisfied standard requirements；
5) segmentation impulse withstand voltage test is carried out to GIS according to segmentation number, if being specifically by GIS points according to segmentation number
Dry section, then to each section of progress impulse withstand voltage test.
The present invention relates to a kind of scene GIS impulse withstand voltage test method, steps of the method are: 1) obtain subject GIS
The equivalent parameters at each interval construct GIS distributed parameter model；2) surge voltage is carried out in GIS according to distributed parameter model
Distribution calculate；3) the surge voltage parameter at each interval GIS is calculated；4) segmentation number is determined according to parameter；5) according to segmentation
Number carries out segmentation impulse withstand voltage test to GIS.It is characterized by: the test method is clearly tested by overvoltage calculating
GIS bears at each interval the waveform parameter of overvoltage, determines segmentation number according to waveform parameter, ensure that test efficiency and realization
Effect.
Specific implementation method of the invention be first obtain subject GIS distribution parameter, i.e., each interval it is equivalent over the ground
The substitutional resistance of capacitor, equivalent inductance and unit length, according to the structural elements distributed constant circuit model of GIS；Secondly basis
Impulse voltage generator is injected into the waveform of subject GIS and subject GIS distributed parameter model carries out impulse voltage distributions feature meter
It calculates, obtains the born High Voltage Impulse Waveform in each interval；Its waveform parameter is calculated according to the High Voltage Impulse Waveform at each interval,
Determine that the waveform parameter at which interval is met the requirements, those are unsatisfactory for requiring；Waveform parameter determination basis can refer to national standard, IEC
Standard and company standard etc., the present invention is not specifically limited；Segmentation number is determined according to waveform parameter, determines principle to guarantee to appoint
The High Voltage Impulse Waveform parameter that the one subject interval GIS is born is all satisfied requirement；According to determining segmentation situation to subject
GIS carries out Sectional Test.
Fig. 1 is flow chart of the invention, and step 1 is to obtain subject GIS spacing parameter, to construct GIS distributed parameters
Model；Step 2 is to calculate overvoltage distribution, and input impulse voltage generator is injected into the waveform of GIS, calculates surge voltage whole
Distribution situation in body GIS；Step 3 is the waveform parameter for calculating each absorbed impact voltage in interval, and waveform parameter includes wave
Head time, wave rear time etc., the waveform parameter for determining which interval is born is met the requirements, those are unsatisfactory for requiring；Step 4 piece
According to step 3 as a result, being determined as the test that can be tested simultaneously segmentation for the interval met the requirements.To be unsatisfactory for require
Interval, recalculates after removing the interval met the requirements, further determines that the segmentation that can be tested.It determines and divides after repeatedly calculating
Section number, guarantees that the High Voltage Impulse Waveform that any one interval is born is all satisfied requirement.Step 5 is to carry out after obtaining segmentation number
Impulse withstand voltage test.
The present invention is described in detail above, specific case used herein is to the principle of the present invention and embodiment party
Formula is expounded, and the above description of the embodiment is only used to help understand the method for the present invention and its core ideas；Meanwhile it is right
In those skilled in the art, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, comprehensive
Upper described, the contents of this specification are not to be construed as limiting the invention.
Claims (1)
1. a kind of method of scene GIS impulse withstand voltage test, which comprises the steps of:
1) equivalent parameters for obtaining the subject each interval GIS, construct GIS distributed parameter model；
2) distribution of the surge voltage in GIS is carried out according to distributed parameter model to calculate；
3) the surge voltage parameter at each interval GIS is calculated；
4) segmentation number is determined according to parameter；
5) segmentation impulse withstand voltage test is carried out to GIS according to segmentation number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811300411.7A CN109541406B (en) | 2018-11-02 | 2018-11-02 | GIS on-site impact voltage-withstanding test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811300411.7A CN109541406B (en) | 2018-11-02 | 2018-11-02 | GIS on-site impact voltage-withstanding test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109541406A true CN109541406A (en) | 2019-03-29 |
| CN109541406B CN109541406B (en) | 2021-02-12 |
Family
ID=65845999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811300411.7A Expired - Fee Related CN109541406B (en) | 2018-11-02 | 2018-11-02 | GIS on-site impact voltage-withstanding test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109541406B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0668207A (en) * | 1992-04-17 | 1994-03-11 | Internatl Business Mach Corp <Ibm> | Method for detecting nearest point on spline or polyline |
| CN103559406A (en) * | 2013-11-13 | 2014-02-05 | 国家电网公司 | Simulation system and method for withstand voltage test of extra-high voltage GIS |
| CN103675623A (en) * | 2013-12-07 | 2014-03-26 | 西安交通大学 | Method and system for detecting partial discharging of GIS under impulse voltage |
| CN104459490A (en) * | 2014-12-11 | 2015-03-25 | 广东电网有限责任公司电力科学研究院 | Ultrasonic wave analysis device and system for GIS breakdown positioning in electric system |
| CN106707114A (en) * | 2016-11-22 | 2017-05-24 | 华北电力大学 | Method and device for detecting operation states of GIS Intervals |
-
2018
- 2018-11-02 CN CN201811300411.7A patent/CN109541406B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0668207A (en) * | 1992-04-17 | 1994-03-11 | Internatl Business Mach Corp <Ibm> | Method for detecting nearest point on spline or polyline |
| CN103559406A (en) * | 2013-11-13 | 2014-02-05 | 国家电网公司 | Simulation system and method for withstand voltage test of extra-high voltage GIS |
| CN103675623A (en) * | 2013-12-07 | 2014-03-26 | 西安交通大学 | Method and system for detecting partial discharging of GIS under impulse voltage |
| CN104459490A (en) * | 2014-12-11 | 2015-03-25 | 广东电网有限责任公司电力科学研究院 | Ultrasonic wave analysis device and system for GIS breakdown positioning in electric system |
| CN106707114A (en) * | 2016-11-22 | 2017-05-24 | 华北电力大学 | Method and device for detecting operation states of GIS Intervals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109541406B (en) | 2021-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106443381B (en) | Dynamic arc model building method and system | |
| Grcev | Time-and frequency-dependent lightning surge characteristics of grounding electrodes | |
| Heidler et al. | A class of analytical functions to study the lightning effects associated with the current front | |
| CN104850738B (en) | Lightning induced voltage computational methods at overhead power transmission line line pole tower | |
| Tavakoli et al. | Transmission-lines shielding failure-rate calculation by means of 3-D leader progression models | |
| CN102998556B (en) | The very fast transient overvoltage simulator of metal oxide pressure-limiting device and method thereof | |
| Andreotti et al. | Lightning-induced voltages on complex power systems by using CiLIV: The effects of channel tortuosity | |
| CN110705172A (en) | Method for calculating distribution of instantaneous electric field of transformer under lightning impulse voltage | |
| Šunjerga et al. | Tower and path-dependent voltage effects on the measurement of grounding impedance for lightning studies | |
| CN102637219A (en) | Lightning fractal method based on charge simulation method and finite difference method in power system | |
| Harid et al. | Experimental investigation of impulse characteristics of transmission line tower footings | |
| CN108052779A (en) | A kind of electric field characterizing method of rod plain gap structure | |
| Hosseini et al. | Using the finite element method to calculate parameters for a detailed model of transformer winding for partial discharge research | |
| Tatematsu et al. | Three-dimensional FDTD-based simulation of induced surges in secondary circuits owing to primary-circuit surges in substations | |
| CN103559406B (en) | A kind of super-pressure GIS pressure tests analogue system and method | |
| CN109541406A (en) | A kind of method of the scene GIS impulse withstand voltage test | |
| Cai et al. | Rocket-triggered-lightning strikes to 10 kV power distribution lines and associated measured parameters of lightning current | |
| Zhou et al. | Using EMTP for evaluation of surge current distribution in metallic gridlike structures | |
| Cai et al. | Three-Phase Overvoltage Induced on Overhead Distribution Line 40 m from Rocket-Triggered Lightning | |
| Liu et al. | Magnetic field distribution inside metallic grid-like buildings struck by lightning based on finite element method | |
| CN110308351B (en) | Grounding grid frequency response measuring method based on short-time transient time domain measurement | |
| de Oliveira et al. | Impulse coefficient for square grounding grids in low resistivity soils: Influence of injection electrode | |
| Liu et al. | Test and Simulation of Transient Characteristics of a Grounding Grid in substation | |
| Bondar et al. | Currents and electric field characteristics at structure during direct lightning strike and issue of separation distance | |
| Zhou et al. | A Novel Lightning Strike Response Simulation Method for Transmission Lines Considering Transient Grounding Resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210212 Termination date: 20211102 |