电测与仪表2016，Vol.53Issue(12)：42-45,51,5.
基于欧式距离法的变压器故障 BBA 模型建立与分析
BBA model establishment and analysis of transformer faults based on Euclidean distance
王莹 1卢秀和 1杨曼1
作者信息
- 1. 长春工业大学电气与电子工程学院，长春130012
- 折叠
摘要
Abstract
According to the problem of the improved three-ratio method of dissolved gas analysis which fault area boundary value fuzzy judgment in transformer fault diagnosis , with the analysis of improved three-ratio method , the Euclidean distance is used to represent probability of each failure to establish the basic belief assignment ( BBA) diag-nosis model of different failures for transformer fault diagnosis .And with the D-S synthetic rule fuses the BBA of dif-ferent faults, the function of reconstruction and normalization of the multiple BBA model is realized .By using the BBA model to calculate a transformer fault of 500 kVA substation in Changchun , through the improved three-ratio method and fuzzy algorithm to contrast and analyze , the results show that the model can diagnose a variety of transformer faults accurately and effectively; the form of probability makes up the defect of improved three -ratio method when the boundary value calculation is fuzzy , which makes the criterion of failure is more truthful and accurate .The BBA mod-el can provide an effective method to solve the fault diagnosis of power transformer .关键词
欧式距离法/BBA模型/诊断向量/D-S合成规则/故障概率/改良三比值法Key words
Euclidean distance method/BBA model/diagnosis vector/D-S synthetic rule/failure probability/im-proved three-ratio method分类
信息技术与安全科学引用本文复制引用
王莹,卢秀和,杨曼..基于欧式距离法的变压器故障 BBA 模型建立与分析[J].电测与仪表,2016,53(12):42-45,51,5.
