摘要
气体绝缘组合电器(Gas Insulated Switchgear,GIS)在电力系统中占有重要地位,然而,GIS内部会出现由于绝缘缺陷引起的局部放电(Partial Discharge,PD),PD长时间发展会导致GIS绝缘损害,对PD进行检测显得尤为重要。对PD进行检测,主要是检测由其造成的二次物理现象,包括声、光、电磁波和气体分解产物等现象。目前,国内外学者对GIS绝缘缺陷检测技术进行了较为全面的研究,取得了大量的成果。对GIS局部放电检测技术以及SF_6替代气体研究进行了较为详细的综述,主要包括GIS平台及典型绝缘缺陷的模拟、超高频电磁波传播特性、分解气体研究、模式识别和SF_6替代气体的研究等,为后续GIS局部放电方面的研究提供了有价值的参考。
Gas insulated switchgears play an important position in the power system.But the partial discharge would occur because of insulation defect. PD will lead to the GIS insulation damage after a long time. Therefore, PD detection is particularly important.The secondary physical phenomena, including the phenomena of sound, light, electromagnetic waves and gas decomposition products and so on are detected.At present, many scholars at home and abroad have made a comprehensive study on insulation detection technology of GIS and have achieved a large number of resuhs.A detailed overview on the detection technical of GIS insulation state and SF6 ahemative gas are made, including GIS platform and the simulation of typical insulation defects, UHF electromagnetic wave propagation characteristics,SF6 decomposition gases, SF6 alternative gas and pattern recognition. These works provide a valuable reference for the follow-up study of GIS.
出处
《陕西电力》
2013年第5期27-33,共7页
Shanxi Electric Power
基金
国家高技术研究发展计划项目资助(863计划)(2011AA05A121)
关键词
气体绝缘组合电器
绝缘状态
局部放电
检测技术
绝缘缺陷
gas insulated switchgear
insulation state
partial discharge
detection technical
insulation defect
