摘要
针对个体决策者对检测变压器故障诊断的局限性,提出了一种变压器结构性故障群决策诊断方法。基于证据推理理论,将多条个体决策得到的结论进行合成,引入决策相似度、可信度,计算个体决策的权重系数。以概率的形式表征变压器的可能状态,解决多种决策存在分歧、关键数据缺失情况下变压器故障的诊断问题。算例分析表明,群决策能明显减小不可靠个体决策的影响,准确地诊断电力变压器结构性故障。
A method of synthesized diagnosis of transformer structural faults based on group multiple attribute decision making(GMADM) is proposed,for the limitation of individual decision maker on transformer fault diagnosis.Based on the evidential reasoning method,several individual decisions are combined,similarity and reliability between decisions are introduced,and the weight coefficients of individual decisions are calculated.Then the conditions of transformers are presented in the form of probability.This method can synthesize the diagnosis results even if the data are incomplete or the decisions made by different experts disagree with each other.An example proved the proposed GMADM method may reduce the effects of unreliable decisions and diagnosis the faults of power transformer.
出处
《湖北电力》
2017年第6期1-6,共6页
Hubei Electric Power
关键词
变压器
结构性故障
绕组形变
证据推理
群决策
power transformer
structural faults
winding deformation
evidential reasoning method
group multiple attribute decision making(GMADM)
