Study on Multi-parameter Intelligent Sensing Technology for Transformer Oil-paper Bushing

MU Haibao; ZHAO Haoxiang; ZHANG Daning; ZHANG Lu; ZHANG Guanjun; HAN Yanhua

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Study on Multi-parameter Intelligent Sensing Technology for Transformer Oil-paper Bushing

更新时间：2025-12-08

- Study on Multi-parameter Intelligent Sensing Technology for Transformer Oil-paper Bushing
- Vol. 46, Issue 6, Pages: 1903-1912(2020)
- 作者机构：
  
  1. 西安交通大学电气工程学院电力设备电气绝缘国家重点实验室
  2. 国网陕西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 June 2020，
  
  Published：2020
- 稿件说明：
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MU Haibao, ZHAO Haoxiang, ZHANG Daning, et al. Study on Multi-parameter Intelligent Sensing Technology for Transformer Oil-paper Bushing[J]. 2020, 46(6): 1903-1912.
DOI：

MU Haibao, ZHAO Haoxiang, ZHANG Daning, et al. Study on Multi-parameter Intelligent Sensing Technology for Transformer Oil-paper Bushing[J]. 2020, 46(6): 1903-1912. DOI：

摘要

近年来由变压器套管故障引发的电力事故频发

直接影响着电网的稳定运行。如何有效诊断套管故障并及时预警

成为变压器套管运行维护中亟待解决的重要问题。为此提出了一种变压器油纸绝缘套管多参量智能感知方法

设计实现了适用于现场应用的套管介损–电容–局放一体化宽频微型传感器和新型氢气–温度–压力一体化非电量检测传感器;研制了低功耗多通道信号采集单元

实现了模拟采集信号就地数字化

利用光纤实现多通道的同步触发和高速通信

抑制了模拟回路耦合干扰;提出了基于向量法的套管异常分析方法

建立了网络化的状态感知诊断系统

可以实现信息的汇聚融合以及远程告警。该方法可以为套管设备向智能化运维方向发展提供一种参考思路。

Abstract

In recent years

power failures caused by transformer bushing faults directly affect the stable operation of a power grid. How to effectively diagnose bushing faults and realize early warning becomes an important issue to be solved urgently in bushing maintenance. In this paper

a multi-parameter intelligent sensing method for bushings is proposed. A dielectric loss/capacitance/partial discharge integrated wide-frequency sensor is designed

which is suitable for field applications. A new hydrogen/temperature/pressure integrated sensor is designed too. The signals from the sensors are obtained by a low-power multi-channel signal acquisition unit

which can digitize analog signals on site. The optical fibers are used to achieve multi-channel synchronous triggering and high-speed communication

suppressing interference in analog signal transmission. The analysis method based on the vector is proposed and a network-based diagnosis system is realized

which has data fusion and remote alarm function. This paper provides a reference idea for the development of bushing with intelligent operation and maintenance.

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