Fault Diagnosis of Transformer Based on Revised Fuzzy ISODATA Algorithm

WANG Zi-jian; HE Jun-jia; YIN Xiao-gen

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Fault Diagnosis of Transformer Based on Revised Fuzzy ISODATA Algorithm

更新时间：2025-04-26

- Fault Diagnosis of Transformer Based on Revised Fuzzy ISODATA Algorithm
- High VoltageApparatus Issue 1, Pages: 11-13+17(2006)
- 作者机构：
  
  1. 华中科技大学电气与电子工程学院
  2. 华中科技大学电气与电子工程学院湖北武汉 430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM407
- Published：2006
- 稿件说明：
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[1]王子建,何俊佳,尹小根.基于改进模糊ISODATA算法的变压器故障诊断[J].高压电器,2006(01):11-13+17.

WANG Zi-jian, HE Jun-jia, YIN Xiao-gen. Fault Diagnosis of Transformer Based on Revised Fuzzy ISODATA Algorithm[J]. High voltageapparatus, 2006, (1): 11-13+17.
[1]王子建,何俊佳,尹小根.基于改进模糊ISODATA算法的变压器故障诊断[J].高压电器,2006(01):11-13+17. DOI：

WANG Zi-jian, HE Jun-jia, YIN Xiao-gen. Fault Diagnosis of Transformer Based on Revised Fuzzy ISODATA Algorithm[J]. High voltageapparatus, 2006, (1): 11-13+17. DOI：

摘要

模糊ISODATA算法在基于变压器DGA的故障诊断中存在一些问题。如:模式空间的划分缺乏依据

聚类分析时没有考虑各种气体成分对故障反映的灵敏度等。笔者对此进行了改进

引入了一个描述不同气体成分对故障反映灵敏度的指标权向量

并在每次迭代运算之后对聚类中心进行分解和合并处理。利用改进的ISODATA算法对3起变压器故障进行了分析

得到了比较高的判断准确度。

Abstract

The fuzzy ISODATA algorithm has some disad-vantages in the transformer fault diagnosis based on DGA

such as

lack basis of dividing the mode space

and not considering the reflection to the sensitivities of various gases to fault and so on. Some aspects of revision are proposed

i.e.

a weight vector of index is introduced to describe the reflection to the sensitivities of different gases to fault; the cluster centers are split and merged after each iterative cal-culation. Three groups of transformer fault data are analyzed by using the revised algorithm

and the result shows that it has higher accuracy.

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