摘要
大型电力变压器由于其内部结构复杂、运行参数众多等因素,传统'是非制'的评价方法一直不能得到准确、可信的评价结果.为了克服'是非制'评价方法的缺点,在分析变压器功能层次结构特点基础上,运用层次分析法,提出了一种量化评价变压器运行状态的新方法.研究了电力变压器设备的状态及其评价层次模型,采用健康值来综合测度设备运行状态;运用层次分析法并结合专家经验,对评价层级结构中各状态参量的权重进行了量化分析;建立了基于层次分析法的变压器设备状态量化评价模型.实例分析表明,文中提出的方法简便、实用,可以有效地评估电力变压器的运行状态.
The exact evaluation of the condition of large power transformers is an important research subject in electrical engineering field,and the key task is to assess the operation condition of power transformers based on state parameters. However, the exact assessment result has not been acquired until now according to traditional assessment methods. A new assessment method based on the Analytic Hierarchy Process was proposed in order to overcome the disadvantages of traditional condition assessments based on ＂acceptance＂ or ＂overproof＂. Firstly, the equipment state and its evaluation hierarchy model were analyzed. The health value was employed to quantitatively describe the running state degree of power transformers, and the weight vectors of all evaluation hierarchies were discussed by using the analytic hierarchy process methodology with the experiences of experts. The valuation model for power transformer＇s health state based on the analytic hierarchy process methodology was built. The practical operational results have shown that the proposed assessment model and method are correct and effective.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第10期56-60,共5页
Journal of Hunan University:Natural Sciences
基金
国家自然科学基金资助项目(50977003)
关键词
层次分析法
电力变压器
状态评价
量化方法
analytic hierarchy process
power transformer
condition assessment
quantification method
