输变电设备状态检修系统的开发与应用  

Development and application of condition-based maintenance systems for transmission and transformation equipment

作　　者：董明[1] 李元[1] 周建国[2] 严璋[1] 

机构地区：[1]电力设备电气绝缘国家重点实验室西安交通大学,西安710049 [2]华东电网有限公司,上海200002

出　　处：《华东电力》2009年第7期1070-1075,共6页East China Electric Power

摘　　要：介绍了为华东电网开发的500kV输变电设备的状态检修系统。在该系统中,采用了如油中溶解气体(DGA)、局部放电(PD)、直流偏磁、铁心接地电流等一系列的在线监测技术及装备,并引入了如人工神经网络(ANN)、粗糙集理论(RST)等高级诊断方法进行运行中变压器故障诊断。实例分析结果表明该状态检修系统的有效性及实用性,有助于对用户提供维修决策支持。A new condition-based maintenance （CBM） system for transmission and transformation equipment was presented which was developed and first applied to a 500 kV substation of East China Power Grid. In this system, a series of on-line monitoring technologies were used, i.e. dissolved gases analysis （GDA）, partial discharge （PD）, DC bias, and core earthing current monitoring. Several advanced methods such as artificial neural network （ ANN ） and rough set theory （RST） were also used to diagnose transformer＇s faults during operation. The case study proved the CBM system effective and useful.

关 键 词：输变电设备 故障诊断 状态检修 状态评价 风险评价 资产管理 维修决策 

分 类 号：TM76[电气工程—电力系统及自动化]