CN106885936B - Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation - Google Patents
Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation Download PDFInfo
- Publication number
- CN106885936B CN106885936B CN201710048784.9A CN201710048784A CN106885936B CN 106885936 B CN106885936 B CN 106885936B CN 201710048784 A CN201710048784 A CN 201710048784A CN 106885936 B CN106885936 B CN 106885936B
- Authority
- CN
- China
- Prior art keywords
- current
- discharge
- plate
- insulation
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009413 insulation Methods 0.000 title claims abstract description 9
- 239000011810 insulating material Substances 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 3
- 238000000691 measurement method Methods 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000000752 ionisation method Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
-
- 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
-
- 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)
Abstract
Description
技术领域technical field
本发明属于电晕放电测量技术领域,特别涉及一种基于绝缘分域组合法的棒-板结构放电电流测量装置。The invention belongs to the technical field of corona discharge measurement, and in particular relates to a rod-plate structure discharge current measurement device based on an insulation divisional combination method.
背景技术Background technique
气体放电的形式是多种多样的,其中电晕放电是外加电场达到某种强度时,气体介质在该场中所特有的局部自持放电现象,也称为汤森德放电。在这个区域内,被电离的气体分子可以被视为自由移动的带电粒子,那么带电粒子的集合体就可称为等离子体。就平均效应来说,它在宏观上呈电中性,但是其内部有着复杂的物理化学反应过程,其中最重要便是带电粒子与中性气体分子之间的碰撞。由于棒-板电场的不均匀性,电离过程被局限在小曲率电极附近很小的区域内,该区域可称之为“起晕区域”。而其它电场强度较低的区域主要发生的是以电子迁移为主的吸附、复合现象,该区域则称之为外围区域。对于负电晕放电,当施加电压逐渐升高时,首先可以观测到的是一系列连续规则的电流脉冲,也称为特里切尔脉冲;随着电压的继续升高,脉冲逐渐消失,此时放电转入无脉冲电晕阶段;若电压持续升高,那么整个放电间隙将被击穿,产生火花放电。因此可以通过分析电晕放电波形(即特里切尔脉冲)的幅值、频率等参数来分析等离子体内部的粒子输运过程。There are various forms of gas discharge, among which corona discharge is a partial self-sustained discharge phenomenon unique to the gas medium in the field when the external electric field reaches a certain intensity, also known as Townsend discharge. In this region, the ionized gas molecules can be regarded as free moving charged particles, then the collection of charged particles can be called plasma. As far as the average effect is concerned, it is electrically neutral macroscopically, but there are complex physical and chemical reaction processes inside it, the most important of which is the collision between charged particles and neutral gas molecules. Due to the inhomogeneity of the rod-plate electric field, the ionization process is confined to a small area near the electrode with small curvature, which can be called the "halo initiation area". In other regions with lower electric field intensity, the phenomenon of adsorption and recombination mainly occurs by electron migration, and this region is called the peripheral region. For negative corona discharge, when the applied voltage is gradually increased, the first thing that can be observed is a series of continuous and regular current pulses, also called Trichel pulses; as the voltage continues to increase, the pulses gradually disappear, at this time The discharge turns into a non-pulse corona stage; if the voltage continues to rise, the entire discharge gap will be broken down, resulting in spark discharge. Therefore, the particle transport process inside the plasma can be analyzed by analyzing the parameters such as the amplitude and frequency of the corona discharge waveform (that is, the Trichel pulse).
目前许多学者采用测量棒-板模型中的板极电流来确定特里切尔脉冲,该种方法可以较为准确地测量出整体区域内的放电电流,而不能得到不同放电域内的电子电流。At present, many scholars use the plate current in the rod-plate model to determine the Trichel pulse. This method can accurately measure the discharge current in the entire area, but cannot obtain the electron current in different discharge domains.
发明内容Contents of the invention
本发明的目的是提出一种基于绝缘分域组合法的棒-板放电电流测量装置,其特征在于,所述棒-板放电电流测量装置为在阳极板2上划分多个同心圆区域,各个区域用绝缘材料1隔开,在中心圆区域放置高压棒4,在各同心圆区域内固定板电极3;各板电极3上串接一个无感电阻,并接地。The purpose of the present invention is to propose a rod-plate discharge current measuring device based on the insulation subdivision combination method, characterized in that, the rod-plate discharge current measuring device is divided into a plurality of concentric circle areas on the anode plate 2, each The areas are separated by insulating material 1, and high-voltage rods 4 are placed in the central circle area, and plate electrodes 3 are fixed in each concentric circle area; each plate electrode 3 is connected in series with a non-inductive resistor and grounded.
所述棒-板放电电流测量的具体步骤如下:The specific steps of the rod-plate discharge current measurement are as follows:
1)在阳极板上划分多个同心圆区域,各个区域用绝缘材料隔开;每个绝缘域下方经过无感电阻接地,电阻上的电压通过匹配好的同轴电缆与示波器连接,1) Divide multiple concentric circle areas on the anode plate, and each area is separated by insulating material; each insulating area is grounded through a non-inductive resistor, and the voltage on the resistor is connected to the oscilloscope through a matched coaxial cable.
2)在高压棒4上施加高电压,直到其达到起晕电压为止,此时电晕放电开始发生;从而测量出各个位置的电晕电流。2) Apply a high voltage on the high-voltage rod 4 until it reaches the corona inception voltage, at which time corona discharge begins to occur; thereby measuring the corona current at each position.
3)步骤2)得到各个绝缘域上的离子电流与位移电流,同时这些电流之和即为总电晕电流值。然后测量不同区域内的放电电流,其中总电流由这些分电流相加得到。3) In step 2), the ion current and displacement current on each insulating domain are obtained, and the sum of these currents is the total corona current value. Then measure the discharge current in different areas, where the total current is obtained by adding these partial currents.
4)为了简化测量,在阳极板的每个区域的中心连接一根导线,并通过限流电阻接地,则通过测量每个分域上连接限流电阻的电压,再求出该电压与电阻的比值即可以得出通过该区域的放电电流。4) In order to simplify the measurement, a wire is connected to the center of each area of the anode plate, and grounded through the current limiting resistor, then by measuring the voltage connected to the current limiting resistor on each sub-area, the relationship between the voltage and the resistance is calculated The ratio gives the discharge current through that region.
本发明的有益效果是应用该方法可以分析空间电晕电流分布特性,并可以很好地解释仿真与实验波形不能吻合的情况。The beneficial effect of the invention is that the method can be used to analyze the distribution characteristics of the corona current in space, and can well explain the situation that the waveforms of simulation and experiments cannot be matched.
附图说明Description of drawings
图1为阳极板上划分多个同心圆区域示意图。Fig. 1 is a schematic diagram of dividing multiple concentric circle regions on the anode plate.
图2为放电电流测量装置示意图。Fig. 2 is a schematic diagram of a discharge current measuring device.
图3为放电电流测量结果曲线图。Figure 3 is a graph of the discharge current measurement results.
具体实施方式Detailed ways
本发明提出一种基于绝缘分域组合法的棒-板放电电流测量装置,下面结合附图予以说明。The present invention proposes a rod-plate discharge current measuring device based on the insulation subdivision combination method, which will be described below with reference to the accompanying drawings.
图1所示为阳极板上划分多个同心圆区域示意图。图2所示为放电电流测量装置示意图。Fig. 1 shows a schematic diagram of dividing a plurality of concentric circle regions on the anode plate. Figure 2 is a schematic diagram of the discharge current measurement device.
图1、图2所示的棒-板放电电流测量装置为在阳极板2上划分多个同心圆区域,各个区域用绝缘材料1隔开,在中心圆区域放置高压棒4,在各同心圆区域内固定板电极3;各板电极3上串接一个无感电阻,并接地;无感电阻上的电压通过匹配好的同轴电缆与示波器连接。The rod-plate discharge current measuring device shown in Fig. 1 and Fig. 2 is to divide a plurality of concentric circle areas on the anode plate 2, and each area is separated by an insulating material 1, and a high voltage rod 4 is placed in the central circle area, and a high voltage rod 4 is placed in each concentric circle area. The plate electrodes 3 are fixed in the area; each plate electrode 3 is connected in series with a non-inductive resistor and grounded; the voltage on the non-inductive resistor is connected to the oscilloscope through a matched coaxial cable.
所述棒-板放电电流测量的具体步骤如下:The specific steps of the rod-plate discharge current measurement are as follows:
1)在阳极板上划分多个同心圆区域,各个区域用绝缘材料隔开;每个绝缘域下方经过无感电阻接地,电阻上的电压通过匹配好的同轴电缆与示波器连接,1) Divide multiple concentric circle areas on the anode plate, and each area is separated by insulating material; each insulating area is grounded through a non-inductive resistor, and the voltage on the resistor is connected to the oscilloscope through a matched coaxial cable.
2)在高压棒4上施加高电压,直到其达到起晕电压为止,此时电晕放电开始发生;从而测量出各个位置的电晕电流。2) Apply a high voltage on the high-voltage rod 4 until it reaches the corona inception voltage, at which time corona discharge begins to occur; thereby measuring the corona current at each position.
3)步骤2)得到各个绝缘域上的离子电流与位移电流,同时这些电流之和即为总电晕电流值。然后测量不同区域内的放电电流(如图3所示),其中总电流由这些分电流相加得到。3) In step 2), the ion current and displacement current on each insulating domain are obtained, and the sum of these currents is the total corona current value. Then measure the discharge current in different areas (as shown in Figure 3), where the total current is obtained by adding these partial currents.
4)为了简化测量,在阳极板的每个区域的中心连接一根导线,并通过限流电阻接地,则通过测量每个分域上连接限流电阻的电压,再求出该电压与电阻的比值即可以得出通过该区域的放电电流。4) In order to simplify the measurement, a wire is connected to the center of each area of the anode plate, and grounded through the current limiting resistor, then by measuring the voltage connected to the current limiting resistor on each sub-area, the relationship between the voltage and the resistance is calculated The ratio gives the discharge current through that region.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710048784.9A CN106885936B (en) | 2017-01-22 | 2017-01-22 | Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710048784.9A CN106885936B (en) | 2017-01-22 | 2017-01-22 | Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106885936A CN106885936A (en) | 2017-06-23 |
CN106885936B true CN106885936B (en) | 2019-10-01 |
Family
ID=59176691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710048784.9A Expired - Fee Related CN106885936B (en) | 2017-01-22 | 2017-01-22 | Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106885936B (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2749986A1 (en) * | 1996-06-14 | 1997-12-19 | Electricite De France | APPARATUS FOR DETECTING INSULATION FAILURE OF A CONNECTED DEVICE IN AN ELECTRICAL POWER DISTRIBUTION OR TRANSPORT NETWORK AND CORRESPONDING DETECTION METHOD |
CN201096875Y (en) * | 2007-09-18 | 2008-08-06 | 比亚迪股份有限公司 | Fuel cell current measuring circuit |
CN202840243U (en) * | 2012-09-18 | 2013-03-27 | 杭州天明环保工程有限公司 | Ionic wind air flow accelerating device and electric current density testing device thereof |
CN103823098A (en) * | 2014-03-19 | 2014-05-28 | 上海电力学院 | Pre-discharge current detection device |
CN104166043A (en) * | 2014-08-12 | 2014-11-26 | 国网上海市电力公司 | Non-inductive pulse current detection device |
CN106093537A (en) * | 2016-07-26 | 2016-11-09 | 河北大学 | High pressure electrostatic separator roll surface real-time current density measuring equipment and measuring method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101839938A (en) * | 2010-04-15 | 2010-09-22 | 西安爱邦电磁技术有限责任公司 | Method for testing airplane model lightning current distribution by utilizing thermal infrared imager |
US20150098161A1 (en) * | 2013-10-09 | 2015-04-09 | Hamilton Sundstrand Corporation | Integrated corona fault detection |
-
2017
- 2017-01-22 CN CN201710048784.9A patent/CN106885936B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2749986A1 (en) * | 1996-06-14 | 1997-12-19 | Electricite De France | APPARATUS FOR DETECTING INSULATION FAILURE OF A CONNECTED DEVICE IN AN ELECTRICAL POWER DISTRIBUTION OR TRANSPORT NETWORK AND CORRESPONDING DETECTION METHOD |
CN201096875Y (en) * | 2007-09-18 | 2008-08-06 | 比亚迪股份有限公司 | Fuel cell current measuring circuit |
CN202840243U (en) * | 2012-09-18 | 2013-03-27 | 杭州天明环保工程有限公司 | Ionic wind air flow accelerating device and electric current density testing device thereof |
CN103823098A (en) * | 2014-03-19 | 2014-05-28 | 上海电力学院 | Pre-discharge current detection device |
CN104166043A (en) * | 2014-08-12 | 2014-11-26 | 国网上海市电力公司 | Non-inductive pulse current detection device |
CN106093537A (en) * | 2016-07-26 | 2016-11-09 | 河北大学 | High pressure electrostatic separator roll surface real-time current density measuring equipment and measuring method |
Also Published As
Publication number | Publication date |
---|---|
CN106885936A (en) | 2017-06-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Florkowska et al. | Pulse height analysis of partial discharges in air | |
Nyamupangedengu et al. | Partial discharge spectral response to variations in the supply voltage frequency | |
Kumar et al. | Electrical breakdown study in CO 2 and CO 2-O 2 Mixtures in AC, DC and pulsed electric fields at 0.1–1 MPa pressure | |
Hara et al. | Particle-triggered pre-breakdown phenomena in atmospheric air gap under AC voltage | |
CN104634721A (en) | Grounding grid accelerated corrosion testing device | |
Luo et al. | Influence-factor analysis and parameter calculation of soil discharge and recovery characteristics under successive impulse currents | |
Wang et al. | Influence of AC voltage on the positive DC corona current pulses in a wire-cylinder gap | |
Osmokrovic et al. | Triggered vacuum and gas spark gaps | |
CN106885936B (en) | Divide the hardened structure discharge current measuring device of stick-of domain combined method based on insulation | |
Faria et al. | Lightning withstand of medium voltage switches and cut-out fuses considering standard and nonstandard impulse shapes | |
Espel et al. | Electrical parameters associated with discharges in resistive soils | |
Ren et al. | Partial discharges in void defect of gas insulated switchgear insulator under standard aperiodic and oscillating switching impulses | |
Li et al. | PD pulse waveform and charge distribution in oil-pressboard insulation with needle-plate model at positive DC voltage: Their characteristics and relationship | |
Chowdhuri et al. | The effects of nonstandard lightning voltage waveshapes on the impulse strength of short air gaps | |
Rajanikanth et al. | Modeling of prebreakdown VI characteristics of a wire-plate electrostatic precipitator operating under combined dc-pulse energization | |
CN103630809A (en) | Pulse discharge loop | |
CN206450741U (en) | Dash current tests residual voltage pressure tester | |
Gataullin | High Voltage Electrical Insulators Diagnostics by Partial Discharges Characteristics | |
Ardiansyah et al. | Surface Discharge Characteristics on the PCB Surface around the Edge of circle Plane-plane Electrode in Air Insulation | |
Datsios et al. | Impulse breakdown characteristics of dry sand: Effect of sand grain size | |
Soban et al. | A study on the humidity effect of AC corona discharge for a thin-wire electrode arrangement | |
ÖZTÜRK et al. | Calculation of surface leakage currents on high voltage insulators by ant colony algorithm-supported FEM | |
Liu et al. | Influence of metal particles on surface charge accumulation characteristics of spacer in SF 6/N 2 mixtures under impulse voltage | |
Yinfei et al. | Experimental investigation on the influence of AC voltage on positive corona current pulses from DC conductor parallel with AC conductor | |
CN106841942A (en) | A kind of method for obtaining the lower grounding body surrounding soil ionic discharge starting field intensity of impact |
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 |
Granted publication date: 20191001 Termination date: 20210122 |
|
CF01 | Termination of patent right due to non-payment of annual fee |