Transformer PD Signal Detection Method Based on Improved Duffing Oscillator Model

YANG Zhenyuan; ZENG Zhezhao; GU Liming; SUN Weijun; ZHU Bin; KE Minqian; XIANG Chao; CHEN Xianjin

doi:10.13296/j.1001-1609.hva.2017.11.027

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Transformer PD Signal Detection Method Based on Improved Duffing Oscillator Model

更新时间：2025-04-26

- Transformer PD Signal Detection Method Based on Improved Duffing Oscillator Model
- High VoltageApparatus Vol. 53, Issue 11, Pages: 164-169(2017)
- 作者机构：
  
  1. 浙江省电力公司检修分公司
  2. 长沙理工大学电气与信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.11.027
  CLC： TM41
- Published：2017
- 稿件说明：
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[1]杨振源,曾喆昭,顾黎明,孙伟军,朱斌,柯敏倩,项超,陈仙进.基于改进型Duffing振子模型的变压器局部放电信号检测方法[J].高压电器,2017,53(11):164-169.

YANG Zhenyuan, ZENG Zhezhao, GU Liming, et al. Transformer PD Signal Detection Method Based on Improved Duffing Oscillator Model[J]. High voltageapparatus, 2017, 53(11): 164-169.
[1]杨振源,曾喆昭,顾黎明,孙伟军,朱斌,柯敏倩,项超,陈仙进.基于改进型Duffing振子模型的变压器局部放电信号检测方法[J].高压电器,2017,53(11):164-169. DOI： 10.13296/j.1001-1609.hva.2017.11.027.

YANG Zhenyuan, ZENG Zhezhao, GU Liming, et al. Transformer PD Signal Detection Method Based on Improved Duffing Oscillator Model[J]. High voltageapparatus, 2017, 53(11): 164-169. DOI： 10.13296/j.1001-1609.hva.2017.11.027.

摘要

针对现有Duffing振子在微弱信号检测方面存在的局限性

提出了一种基于改进型Duffing振子的微弱脉冲信号检测的新方法。考虑到变压器局部放电信号的检测涉及到广谱信号的检测问题

而且改进型Duffing振子的临界混沌幅值不会随振子的激励频率和采样频率的改变而发生明显变化

因而有效避免了现有Duffing振子只能检测低频信号的局限性。仿真结果表明

在强噪声背景下

基于改进型Duffing振子的变压器局部放电微弱脉冲信号的检测方法不仅具有良好的噪声免疫特性

而且具有高精度的检测结果

在变压器局部放电信号检测领域中具有重要的应用价值。

Abstract

To break out of the limitations of existing Duffing oscillator in weak signal detection

we propose a new method for detecting weak pulse signal based on the improved Duffing oscillator.Because the detection of transformer partial discharge（PD）detection involves the detection of broad spectrum signals

and the improved Duffing oscillator’s critical amplitude of chaos does not change with the excitation frequency of oscillator and the sampling frequency

the limitation that the existing Duffing oscillator is only applicable to detection of low-frequency signals is broken.Simulation shows that in strong noise background

the improved Duffing oscillator based weak PD pulse signal detection method for transformer has good noise immunity and high accuracy.

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