Vibration Characteristic Comparison Between Vacuum Arcing On-load Tap-changer and Oil Blast On-load Tap-changer

WANG Fenghua; FAN Jiahao; ZHENG Yiming; HE Wenlin; QIAN Yong

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Vibration Characteristic Comparison Between Vacuum Arcing On-load Tap-changer and Oil Blast On-load Tap-changer

更新时间：2025-12-08

- Vibration Characteristic Comparison Between Vacuum Arcing On-load Tap-changer and Oil Blast On-load Tap-changer
- Vol. 45, Issue 9, Pages: 2834-2841(2019)
- 作者机构：
  
  1. 上海交通大学电气工程系
  2. 上海电力大学电气工程学院
  3. 国网浙江省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 September 2019，
  
  Published：2019
- 稿件说明：
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WANG Fenghua, FAN Jiahao, ZHENG Yiming, et al. Vibration Characteristic Comparison Between Vacuum Arcing On-load Tap-changer and Oil Blast On-load Tap-changer[J]. 2019, 45(9): 2834-2841.
DOI：

WANG Fenghua, FAN Jiahao, ZHENG Yiming, et al. Vibration Characteristic Comparison Between Vacuum Arcing On-load Tap-changer and Oil Blast On-load Tap-changer[J]. 2019, 45(9): 2834-2841. DOI：

摘要

为提高对真空灭弧式有载分接开关（on-loadtapchanger

OLTC）运行特性的认知水平

掌握真空灭弧式OLTC切换过程中的振动特性

提高其运行可靠性

基于改进密度的含噪声空间聚类（density-based spatial clustering of applications with noise

DBSCAN）算法对比分析了真空与油灭弧式OLTC切换过程中的振动信号。即通过合理设定距离阈值和点数阈值对振动信号进行了DBSCAN聚类

然后根据聚类结果定义了动作点数和离散点数来描述OLTC的振动特性。对SHZV型真空OLTC与M型OLTC切换过程中振动信号的分析表明:改进DBSCAN聚类算法能有效描述OLTC振动信号的脉冲分布特征

相对于油灭弧OLTC

真空灭弧式OLTC切换过程中振动信号的动作点数和离散点数均大于油灭弧式OLTC

反映了真空灭弧式OLTC振动信号多脉冲离散分布的特点。研究结果可为基于振动分析法的真空OLTC机械状态监测技术提供参考。

Abstract

To further improve the understanding of the operation characteristics of the vacuum on-load tap-changer（OLTC）

and master the vibration characteristics of the vacuum OLTC

an improved DBSCAN clustering algorithm is applied to compare the vibration characteristics of vacuum and oil blast OLTC in the paper. Firstly

DBSCAN is used to cluster vibration information system by setting distance threshold and points threshold. Then

the characteristic index-action points and discrete points that can reflect the signal pulse distribution to describe the vibration characteristics of OLTC are defined. The results of vibration signals of SHZV vacuum OLTC and M OLTC reveal that the improved DBSCAN algorithm is capable of describing the impulse distribution features of vibration signals of OLTC. The number of action points and the number of discrete points of the vacuum OLTC vibration signal obtained by clustering are all greater than those of the oil blast OLTC.Therefore

the vacuum OLTC vibration signal has the characteristics of multi-pulse discrete distribution. The results can provide a reference for the mechanical monitoring of vacuum OLTC based on vibration.

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