ARM-based UHF Partial Discharge Monitoring System for Electric Power Transformer

DENG Ben-zai DAI Feng-long DENG Feng

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ARM-based UHF Partial Discharge Monitoring System for Electric Power Transformer

更新时间：2025-04-26

- ARM-based UHF Partial Discharge Monitoring System for Electric Power Transformer
- High VoltageApparatus Issue 5, Pages: 477-479(2008)
- 作者机构：
  
  长沙理工大学
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM835.4
- Published：2008
- 稿件说明：
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[1]邓本再,代凤龙,邓丰.基于ARM的电力变压器UHF局部放电监测系统[J].高压电器,2008(05):477-479.

DENG Ben-zai DAI Feng-long DENG Feng. ARM-based UHF Partial Discharge Monitoring System for Electric Power Transformer[J]. High voltageapparatus, 2008, (5): 477-479.
[1]邓本再,代凤龙,邓丰.基于ARM的电力变压器UHF局部放电监测系统[J].高压电器,2008(05):477-479. DOI：

DENG Ben-zai DAI Feng-long DENG Feng. ARM-based UHF Partial Discharge Monitoring System for Electric Power Transformer[J]. High voltageapparatus, 2008, (5): 477-479. DOI：

摘要

为了无失真地采集超高频检测中所需的有用信号

笔者介绍了一种利用混频原理将电力变压器UHF局部放电信号进行降频变换

较好地采用ARM微处理器设计了一款现场信号调理与采集系统

在μC/OS-Ⅱ操作系统基础上编写用户软件对信号进行处理和运算

提取了局部放电信号的各类相位分布谱图和统计算子。实验结果表明

笔者设计的基于混频技术的信号调理单元

很好地达到了UHF窄带时域信号的降频变换作用

为局部放电模式识别提供了各种可靠真实的特征参数。

Abstract

In order to collect useful signal without distortion for ultra-high frequency detection

this paper proposed a signal conditioning and collecting system using the mixing principle to realize frequency-shift of UHF partial discharge in power transformer by virtue of ARM microprocessor.Customer software was coded based onμC/OS-Ⅱoperation system to process and calculate the signal Various phase distributions and statistical operator were extracted.The results show that the signal conditioning unit based on the mixing principle can reach a very good down-changing function of time-domain signal with UHF narrow band

and it can supply a variety of exact and credible characteristic parameters for partial discharge pattern recongnition.

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