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中国电机工程学报 2006, 26(1) 151-154 DOI:
ISSN: 0258-8013 CN: 11-2107/TM |
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| 电工电机 |
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基于吸附势理论的SF6高压电器设备气体绝缘状态预测 |
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吕超 胡晓光 |
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哈尔滨工业大学电气工程学院 北京航空航天大学自动化科学与电气工程学院 |
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摘要：
SF6气体的相对湿度可以直观地反映SF6高压电器设备的绝缘状态。因为相对湿度值随温度变化，所以不同温度的离线相对湿度要根据在线监测得到的相对湿度换算得到，这一过程必须考虑设备对水分的吸附作用。文中在吸附势理论的基础上，采用吸附势与吸附空间的关系曲线作为描述SF6高压电器设备对水分吸附作用的特性曲线，并给出了曲线的制定方法及流程。在实时在线监测的基础上，利用特性曲线推导了温度变化时SF6气体相对湿度的离线计算算法。以离线相对湿度作为预测气体绝缘状态的依据，并在实验室进行了模拟实验。 |
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关键词：
六氟化硫
高压电器设备
绝缘状态
相对湿度
吸附势理论
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Forecasting of the Insulation Property of SF6 Gas-Insulated HV Equipment Based on Adsorption Potential Theory |
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Abstract:
The relative humidity of SF6 gas-insulated HV equipment reflects its insulation property intuitively. Because the relative humidity is a variable of temperature, the off-line relative humidity in different temperature is to be conversed from the on-line value, the adsorption of water by equipment must be taken into account in such a course. This paper describes the adsorption of water vapour by the SF6 gas-insulated HV equipment in the relationship between adsorption potential and adsorption space. The procedure of making the curve of "adsorption potential - adsorption space" is presented. Based on the on-line monitoring, the off-line relative humidity of SF6 gas is calculated in different temperature by using the curve, and the corresponding results are applied to forecast the insulation property of SF6 gas. The simulative experiment has been done in laboratory. |
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Keywords:
SF6
HV equipment
Insulation property
correlation analysis
Adsorption potential
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收稿日期 2005-03-23 修回日期 1900-01-01 网络版发布日期 |
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DOI: |
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基金项目:
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通讯作者: 吕超 |
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作者简介: |
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作者Email: luchaohit@yahoo.com.cn |
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| 参考文献： |
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| 本刊中的类似文章 |
| 1．张晓星 任江波 肖鹏 唐炬 姚尧.检测SF6气体局部放电的多壁碳纳米管薄膜传感器[J]. 中国电机工程学报, 2009,29(16): 114-118 |
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| Copyright by 中国电机工程学报 |
