摘要
大型电力变压器的内部结构复杂、运行参数以及状态特征量众多,现有的状态评估方法只考虑变压器已有特征量,在评估结果的准确度、可信度等方面有所欠缺。为了克服上述方法的缺点,本文在分析变压器功能层次结构基础上,将历史数据与状态评估有机结合,运用层次分析法,提出了考虑状态量变化率等多种因素的变压器运行状态评估新方法。该方法建立了电力变压器设备的状态评价模型,采用健康值来综合测度设备运行状态。仿真结果表明该方法较传统方法在状态评估的时效性和准确性方面有很大提高。
T h e internal structure of large power transformer, complex operation parameters a n d characteristic n u m b e r s, state of the existing evaluation methods only consider the existing trarisfonner features, lacking in the assessment of the accuracy a n d reliability etc. In order to overcome the shortcoming of the above m e t h o d, based o n the analysis of transformer function hierarchy based on the historical data a n d assessment of organic combination, using the analytic hierarchy process, puts forward a n e w evaluation m e t h o d considering the running state of the transformer state variation rate a n d other factors. T h e m e t h o d establishes the state evaluation m o del of p o wer transformer equipment a nd uses health value to comprehensively measure the running state of equipment. Simulation results s h o w that this m e t h o d is m o r e effective than traditional methods in the time and accuracy of state estimation.
出处
《现代制造技术与装备》
2017年第9期179-180,共2页
Modern Manufacturing Technology and Equipment
关键词
特征量
变压器
健康值
characteristic quantity, transformer, health value
