摘要
针对传统输电线路状态检修模式无法解决人力资源短缺与输电设备规模快速增长这一突出问题,依据线路历史运维数据建立样本数据库,对近10年危急、严重缺陷和故障进行了统计分析;研究了状态量和检测方式的检出效率,结合专家评估筛选出74个关键状态量,进行了关键状态量的盲检率优化评估;分析了取消输电线路停电例行试验可行性,并开展了经济性和安全性评价。研究结果表明,输电线路已具备开展基于不停电检测的状态检修条件,不停电检测方式可有效提升输电线路运维检修效率。
The condition-based maintenance is the most prevalent maintenance mode at present. It is based on periodic evaluation of the equipment conditions. With the development of online detection, the traditional model of condition-based maintenance cannot meet requirement of developing grid. The sample database based on historical operation and maintenance data of transmission line is established first. The imminent, grave defects and faults in recent ten years are statistically analyzed. The detection efficiency of state variable and detecting mode is then studied. Combined with 74 critical state variable selected by expert, blind detection rate optimized evaluation of those critical state variable is performed. The feasibility of canceling transmission line routine test with power cut is discussed and the economic and safety issues are evaluated. The results show that current transmission line is capable of performing condition-based maintenance based on online detection without power cut.
出处
《中国电力》
CSCD
北大核心
2016年第10期84-89,共6页
Electric Power
关键词
输电线路
状态检修
状态量
盲检率
停电例行试验
缺陷
故障
transmission line
condition-based maintenance
state variable
blind detection rate
routine test with power cut
defect
fault
