Fabrication of carbon nanotube gas sensor for gas insulated system and its applications

气体绝缘系统用碳纳米管气体传感器的制备及其应用

• 批准号: 18560279
• 负责人: IMASAKA Kiminobu
• 金额: $ 2.51万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560279/
• 关键词: Carbon nanotube gas sensor; Electric power equepment; Gas insulated system; Partial discharge; Decomposition gas; Corona wing; Concentration distribution; Gas pressure dependence; SF_6分解ガス; 電力設備診断; SF_6ガス絶縁電力機器(GIS); 誘電泳動インピーダンス計測法

Gas insulated system (GIS) is based on the principle of complete enclosure of all live parts in a metallic encapsulation. Compressed SF_6 gas is used as dielectric medium between the energized parts and grounded encapsulation. In this study, carbon nanotube gas sensor was fabricated and applied to the detection of decomposition gases of SF_6 in GIS[1]PD-etedction using CNT gas sensor in GISCNT gas sensor was fabricated by dielectrophoresis(DEP)-fabrication method and applied to detection of decomposition gases of SF_6 in GIS.Partial discharge (PD) was generated in model-GIS tank. The CNT gas sensor was found to be responsible to the decomposition gases of SF_6 by PD. (1) The CNT gas sensor was sensitive to the ambient temperature as well as to PD-generated decomposition products. The stability and sensitivity of CNT gas sensor conductance could be improved by controlling the operating temperature of CNT gas sensor.[2]Analysis of PD-generated decomposition gases of SF_6 adsorbed on CNTT … More he decomposition gas species responsible for the CNT gas sensor response to PD occurring in SF6 were experimentally investigated according two approaches. At first, the decomposition gas molecules adsorbed on CNT were analyzed by using FTIR spectroscopy. In the second experiment, CNT gas sensor responses to some typical SF6 decomposition gases (SF4 and HF) were measured. Additionally, charge transfer between adsorbed gas molecules and CNT were discussed based on theoretical predictions of molecular orbital calculations. Based on the results, SF4 and SOF2 emerged as candidates for the major responsible decomposition gases.[3]Research for practical use of CNT gas sensorPD detection using CNT gas sensor under practical operating conditions of GIS was studied. The CNT gas sensor, which was installed in an external pipe connected to the GIS tank, could detect PD generated in the GIS tank, although the sensor response became lower and slower as the sensor was installed further from the PD source. Less

气体绝缘系统（GIS）基于将所有带电部件完全封闭在金属封装中的原理。在带电部件和接地封装之间采用压缩SF_6气体作为介质。本研究采用介电泳（DEP）法制备了碳纳米管气体传感器，并将其应用于GIS中SF_6分解气体的检测中。[1]采用介电泳法制备了碳纳米管气体传感器，并将其应用于GIS中SF_6分解气体的检测。放电分析表明，碳纳米管气敏元件对SF_6的分解气体有较好的响应。(1)碳纳米管气体传感器是敏感的环境温度以及PD产生的分解产物。通过控制碳纳米管气敏元件的工作温度，可以提高碳纳米管气敏元件电导的稳定性和灵敏度。[2]碳纳米管吸附SF_6放电产生的分解气体分析 ...更多信息 根据两种方法，实验研究了CNT气敏元件对SF6中发生的PD的响应的分解气体种类。首先，通过使用FTIR光谱分析吸附在CNT上的分解气体分子。在第二个实验中，碳纳米管气体传感器的响应，一些典型的SF6分解气体（SF4和HF）进行了测量。此外，吸附的气体分子和碳纳米管之间的电荷转移的分子轨道计算的理论预测的基础上进行了讨论。根据结果，SF4和SOF2成为主要负责分解气体的候选者。[3]碳纳米管气体传感器实用化研究研究在GIS实际运行条件下，利用碳纳米管气体传感器进行局部放电检测。碳纳米管气体传感器，这是安装在一个外部管道连接到GIS罐，可以检测到在GIS罐中产生的PD，虽然传感器的响应变得更低，更慢，因为传感器安装在远离PD源。少

项目成果

Factors affecting PD detection in GIS using a carbon nanotube gas sensor

• DOI: 10.1109/tdei.2007.369536
• 发表时间: 2007-06
• 期刊: IEEE Transactions on Dielectrics and Electrical Insulation
• 影响因子: 3.1
• 作者: W. Ding;K. Ochi;J. Suehiro;K. Imasaka;R. Hayashi;M. Hara

Partial discharge detection using a carbon nanotube gas sensor installed in a gas pipe connected to GIS

使用安装在连接 GIS 的燃气管道中的碳纳米管气体传感器进行局部放电检测

• 发表时间: 2006
• 期刊: Proc.of 13th Asian Conf.on Electrical Discharge(ACED)
• 作者: Weidong;Ding;et. al.;Weidong Ding et al.;Weidong Ding et al.;Weidong Ding et al.
• 通讯作者: Weidong Ding et al.

Effect of metal electrode materials on carbon nanotube gas sensor fabricated by dielectronhoresis

金属电极材料对介电电泳碳纳米管气体传感器的影响

• 发表时间: 2006
• 作者: Weidong Ding;et. al.
• 通讯作者: et. al.

Analysis of PD-generated SF6 decomposition gases adsorbed on carbon nanotubes

• DOI: 10.1109/tdei.2006.258191
• 发表时间: 2006-12-01
• 期刊: IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
• 影响因子: 3.1
• 作者: Ding, Weidong;Hayashi, Ryota;Minagawa, Tadao
• 通讯作者: Minagawa, Tadao

Effect of metal electrode materials on carbon nanotube gas sensor fabricated by dielectrophoresis

金属电极材料对介电泳碳纳米管气体传感器的影响

• 发表时间: 2006
• 期刊: Proc. of 2006 Asia-Pacific Conf. of Transducers and Micro-Nano Technology(APCOT)
• 作者: Weidong;Ding;et. al.;Weidong Ding et al.;Weidong Ding et al.
• 通讯作者: Weidong Ding et al.