CN103558515A - Corona generating and measuring device of high-voltage DC wire - Google Patents
Corona generating and measuring device of high-voltage DC wire Download PDFInfo
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- CN103558515A CN103558515A CN201310498163.2A CN201310498163A CN103558515A CN 103558515 A CN103558515 A CN 103558515A CN 201310498163 A CN201310498163 A CN 201310498163A CN 103558515 A CN103558515 A CN 103558515A
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- 238000005259 measurement Methods 0.000 claims description 9
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract description 5
- 230000003746 surface roughness Effects 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019592 roughness Nutrition 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
本发明公开了一种高压直流电线电晕发生和测量装置，包括一个底座和一个电晕笼，所述的底座为U形底座，所述电晕笼放置在U形座的中间，电晕笼为空心圆柱结构，中间为测量段、两边为防护段，所述测量段和防护段均接地电位，电晕笼的中部设置导线，与电晕笼构成同轴电极系统，导线两端均设置均压装置，其中一个均压装置接高压直流源，高压直流源的两端并联接入一个电压表，测量段接入一个电流表。本发明的高压直流电线电晕发生和测量装置可测得铜导线的正电晕和负电晕电流相应的变化，从而测量在不同的电压极性下，不同的导线表面粗糙度对电晕伏安特性的影响。
The invention discloses a corona generating and measuring device for high-voltage direct current wires, which comprises a base and a corona cage, the base is a U-shaped base, the corona cage is placed in the middle of the U-shaped seat, and the corona cage It is a hollow cylindrical structure with a measuring section in the middle and protective sections on both sides. Both the measuring section and the protective section are grounded. The middle part of the corona cage is equipped with a wire, which forms a coaxial electrode system with the corona cage. One of the voltage equalizing devices is connected to a high-voltage DC source, the two ends of the high-voltage DC source are connected in parallel to a voltmeter, and the measuring section is connected to an ammeter. The corona generating and measuring device for high-voltage direct current wires of the present invention can measure the corresponding changes of the positive corona and negative corona currents of copper wires, thereby measuring the effect of different wire surface roughness on corona volt-ampere under different voltage polarities. influence of characteristics.
Description
技术领域 technical field
本发明涉及一种电力设备测量装置，具体地说涉及一种测量高压直流导线电晕发生和测量装置。 The invention relates to a measuring device for electric power equipment, in particular to a measuring device for measuring high-voltage direct-current wire corona generation and measurement.
背景技术 Background technique
电晕的伏安特性是研究直流导线的重要指标，目前，全空间电晕场模型可以用来测量高压导线的电晕伏安特性，但是在全空间电晕场模型中，很多参数的取值存在很大的争议，一般认为，导线表面的起晕场强和电极材料没有关系，导线表面的粗糙度对起晕场强有一定的影响，而全空间电晕场模型无法测量这种影响。 The volt-ampere characteristic of corona is an important indicator for studying DC conductors. At present, the full-space corona field model can be used to measure the corona volt-ampere characteristics of high-voltage conductors, but in the full-space corona field model, the values of many parameters There is a lot of controversy. It is generally believed that the inception field strength of the wire surface has nothing to do with the electrode material, and the roughness of the wire surface has a certain impact on the inception field strength, but the full-space corona field model cannot measure this effect.
发明内容 Contents of the invention
针对上述缺陷，本发明提供一种高压直流电线电晕发生和测量装置，测量在不同的电压极性下，不同的导线表面粗糙度对电晕伏安特性的影响。 In view of the above defects, the present invention provides a corona generation and measurement device for high-voltage direct current wires, which measures the influence of different wire surface roughnesses on corona volt-ampere characteristics under different voltage polarities.
为了实现上述目的，本发明的技术方案是： In order to achieve the above object, technical scheme of the present invention is:
一种高压直流电线电晕发生和测量装置，包括一个底座和一个电晕笼，所述的底座为U形底座，所述电晕笼放置在U形座的中间，电晕笼为空心圆柱结构，中间为测量段、两边为防护段，所述测量段和防护段均接地电位，电晕笼的中部设置导线，与电晕笼构成同轴电极系统，导线两端均设置均压装置，其中一个均压装置接高压直流源，高压直流源的两端并联接入一个电压表，测量段接入一个电流表。 A high-voltage direct current wire corona generating and measuring device, including a base and a corona cage, the base is a U-shaped base, the corona cage is placed in the middle of the U-shaped seat, and the corona cage is a hollow cylindrical structure , the middle is the measurement section, and the two sides are the protection sections. The measurement section and the protection section are both at ground potential. The middle part of the corona cage is provided with a wire, which forms a coaxial electrode system with the corona cage. Both ends of the wire are provided with a voltage equalizing device. A voltage equalizing device is connected to a high-voltage DC source, the two ends of the high-voltage DC source are connected in parallel to a voltmeter, and the measuring section is connected to an ammeter.
进一步，所述的高压直流源为正极性高压直流源或负极性高压直流源。 Further, the high-voltage direct current source is a positive polarity high-voltage direct current source or a negative polarity high-voltage direct current source.
进一步，所述的电压表为直流数字电压表。 Further, the voltmeter is a DC digital voltmeter.
进一步，所述的电流表为直流数字电流表。 Further, the ammeter is a DC digital ammeter. the
进一步，所述的基座为高密度聚乙稀材料制成。 Further, the base is made of high density polyethylene material.
进一步，所述电晕笼和均压装置的材料均为不锈钢材质。 Further, the materials of the corona cage and the pressure equalizing device are all stainless steel.
本发明的高压直流电线电晕发生和测量装置，采用一体化设计，导线的接地电极处于一个基体，可以减小由相对位置引起的误差，电晕笼体的防护段采用非均匀设计，保证了测量段空间电场的均匀分布，而且减小了事个装置的尺寸。当高压直流源通电时，铜导线产生电晕，同时测量装置测得电晕电流，当高压直流源加压，测量装置可测得铜导线的正电晕和负电晕电流相应的变化，从而测量在不同的电压极性下，不同的导线表面粗糙度对电晕伏安特性的影响。 The corona generating and measuring device for high-voltage DC wires of the present invention adopts an integrated design, and the grounding electrode of the wire is in a base, which can reduce the error caused by the relative position. The protective section of the corona cage adopts a non-uniform design, which ensures The uniform distribution of the electric field in the measurement section space, and the size of the device is reduced. When the high-voltage DC source is energized, the copper wire generates corona, and the measuring device measures the corona current at the same time. Influence of different wire surface roughness on corona volt-ampere characteristics under different voltage polarities.
附图说明 Description of drawings
图1为本发明的结构示意图。 Fig. 1 is a structural schematic diagram of the present invention.
具体实施方式 Detailed ways
下面结合具体实施例对本发明做进一步的说明。 The present invention will be further described below in conjunction with specific embodiments.
如图1所示，本发明的高压直流电线电晕发生和测量装置，包括一个底座1和一个电晕笼2，所述的底座1为U形底座，所述电晕笼2放置在U形座的中间，电晕笼2为空心圆柱结构，中间为测量段22、两边为防护段21，所述测量段22和防护段21均接地电位，电晕笼2的中心沿横向设置导线3，与电晕笼2构成同轴电极系统，导线3两端均设置均压装置4，其中一个均压装置4接高压直流源5，高压直流源5的两端并联接入一个电压表6，测量段接入一个电流表7，电流表7一端接地。
As shown in Figure 1, the high-voltage direct current electric wire corona generating and measuring device of the present invention comprises a
所述的高压直流源5为正极性高压直流源或负极性高压直流源。
The high voltage direct
所述的电压表6为直流数字电压表。
The
所述的电流表7为直流数字电流表。
The
所述的基座1由高密度聚乙稀材料制成。
The
所述电晕笼2和均压装置4的材料均为不锈钢材质。
The materials of the
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310498163.2A CN103558515A (en) | 2013-10-22 | 2013-10-22 | Corona generating and measuring device of high-voltage DC wire |
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| CN201310498163.2A CN103558515A (en) | 2013-10-22 | 2013-10-22 | Corona generating and measuring device of high-voltage DC wire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457558A (en) * | 2014-11-18 | 2015-03-25 | 国家电网公司 | Estimation method for roughness coefficient of high voltage alternating current wires |
| CN107390012A (en) * | 2017-08-28 | 2017-11-24 | 中国电力科学研究院 | A kind of portable high-pressure DC corona current metering sensor |
| CN110988637A (en) * | 2019-11-28 | 2020-04-10 | 清华大学 | Direct current-impact combined pressurization test loop for power transmission line |
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| JPH05312892A (en) * | 1992-05-14 | 1993-11-26 | Mitsubishi Electric Corp | Corona current measurement |
| US20090322345A1 (en) * | 2008-06-25 | 2009-12-31 | Aisin Aw Co., Ltd. | Insulation coated conductor inspection method and inspection apparatus |
| CN202057762U (en) * | 2011-03-15 | 2011-11-30 | 国网电力科学研究院 | Device for simulating high-altitude conducting wire electromagnetic environment |
| CN102445639A (en) * | 2011-09-22 | 2012-05-09 | 华北电力大学 | Method and device for measuring ion flow spatial distribution of split conductor |
| CN102608394A (en) * | 2012-04-01 | 2012-07-25 | 华北电力大学 | Line corona current measurement system and method |
| CN103116056A (en) * | 2012-08-07 | 2013-05-22 | 中国电力科学研究院 | High-voltage direct current broadband domain corona current measurement system |
| CN103245895A (en) * | 2013-04-22 | 2013-08-14 | 安徽省电力科学研究院 | Anticorona discharge connection device for pressurization in high-voltage test |
| CN203164258U (en) * | 2012-08-07 | 2013-08-28 | 中国电力科学研究院 | High-voltage direct current wide frequency domain corona current measuring system |
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2013
- 2013-10-22 CN CN201310498163.2A patent/CN103558515A/en active Pending
Patent Citations (8)
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| JPH05312892A (en) * | 1992-05-14 | 1993-11-26 | Mitsubishi Electric Corp | Corona current measurement |
| US20090322345A1 (en) * | 2008-06-25 | 2009-12-31 | Aisin Aw Co., Ltd. | Insulation coated conductor inspection method and inspection apparatus |
| CN202057762U (en) * | 2011-03-15 | 2011-11-30 | 国网电力科学研究院 | Device for simulating high-altitude conducting wire electromagnetic environment |
| CN102445639A (en) * | 2011-09-22 | 2012-05-09 | 华北电力大学 | Method and device for measuring ion flow spatial distribution of split conductor |
| CN102608394A (en) * | 2012-04-01 | 2012-07-25 | 华北电力大学 | Line corona current measurement system and method |
| CN103116056A (en) * | 2012-08-07 | 2013-05-22 | 中国电力科学研究院 | High-voltage direct current broadband domain corona current measurement system |
| CN203164258U (en) * | 2012-08-07 | 2013-08-28 | 中国电力科学研究院 | High-voltage direct current wide frequency domain corona current measuring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457558A (en) * | 2014-11-18 | 2015-03-25 | 国家电网公司 | Estimation method for roughness coefficient of high voltage alternating current wires |
| CN104457558B (en) * | 2014-11-18 | 2018-05-18 | 国家电网公司 | A kind of evaluation method of the high-voltage alternating conducting wire coefficient of roughness |
| CN107390012A (en) * | 2017-08-28 | 2017-11-24 | 中国电力科学研究院 | A kind of portable high-pressure DC corona current metering sensor |
| CN107390012B (en) * | 2017-08-28 | 2020-12-08 | 中国电力科学研究院 | A Portable High Voltage DC Corona Current Measurement Sensor |
| CN110988637A (en) * | 2019-11-28 | 2020-04-10 | 清华大学 | Direct current-impact combined pressurization test loop for power transmission line |
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Application publication date: 20140205 |