Examination on the Denoising Methods for Electrical and Acoustic Emission Partial Discharge Signals in Oil

Q3 Mathematics

Indonesian Journal of Electrical Engineering and Informatics Pub Date : 2023-09-25 DOI:10.52549/ijeei.v11i3.4463

Ahmad Hafiz Mohd Hashim, Norhafiz Azis, Jasronita Jasni, Mohd Amran Mohd Radzi, Masahiro Kozako, Mohamad Kamarol Mohd Jamil, Zaini Yaakub

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引用次数: 0

Abstract

Partial discharge (PD) measurements either through electrical or acoustic emission approaches can be subjected to noises that arise from different sources. In this study, the examination on the denoising methods for electrical and acoustic emission PD signal is carried out. The PD was produced through needle-plane electrodes configuration. Once the voltage reached to 30 kV, the electrical and acoustic emission PD signals were recorded and additive white Gaussian noise (AWGN) was introduced. These signals were then denoised using moving average (MA), finite impulse response (FIR) low/high-pass filters, and discrete wavelet transform (DWT) methods. The denoising methods were evaluated through ratio to noise level (RNL), normalized root mean square error (NRMSE) and normalized correlation coefficient (NCC). In addition, the computation times for all denoising methods were also recorded. Based on RNL, NRMSE and NCC indexes, the performances of the denoising methods were analyzed through normalization based on the coefficient of variation (𝐶𝑣). Based on the current study, it is found that DWT performs well to denoise the electrical PD signal based on the RNL and NRMSE 𝐶𝑣 index while MA has a good denoising NCC and computation time 𝐶𝑣 index for acoustic emission PD signal.

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石油中电声发射局部放电信号去噪方法的研究

通过电或声发射方法进行的局部放电(PD)测量可能受到来自不同来源的噪声的影响。本文对电发射和声发射PD信号的去噪方法进行了研究。PD是通过针平面电极结构产生的。当电压达到30 kV时，记录放电的电声发射信号，并引入加性高斯白噪声。然后使用移动平均(MA)、有限脉冲响应(FIR)低/高通滤波器和离散小波变换(DWT)方法对这些信号进行去噪。通过噪声水平比(RNL)、归一化均方根误差(NRMSE)和归一化相关系数(NCC)对各降噪方法进行评价。此外，还记录了各种去噪方法的计算次数。基于RNL、NRMSE和NCC指标，基于变异系数(𝑣)进行归一化，分析各去噪方法的性能。基于目前的研究，发现基于RNL和NRMSE的指数对电PD信号有较好的去噪效果，而基于MA的指数对声发射PD信号有较好的去噪NCC和计算时间的指数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Indonesian Journal of Electrical Engineering and Informatics Computer Science-Computer Science (miscellaneous)

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： The journal publishes original papers in the field of electrical, computer and informatics engineering which covers, but not limited to, the following scope: Electronics: Electronic Materials, Microelectronic System, Design and Implementation of Application Specific Integrated Circuits (ASIC), VLSI Design, System-on-a-Chip (SoC) and Electronic Instrumentation Using CAD Tools, digital signal & data Processing, , Biomedical Transducers and instrumentation. Electrical: Electrical Engineering Materials, Electric Power Generation, Transmission and Distribution, Power Electronics, Power Quality, Power Economic, FACTS, Renewable Energy, Electric Traction. Telecommunication: Modulation and Signal Processing for Telecommunication, Information Theory and Coding, Antenna and Wave Propagation, Wireless and Mobile Communications, Radio Communication, Communication Electronics and Microwave, Radar Imaging. Control: Optimal, Robust and Adaptive Controls, Non Linear and Stochastic Controls, Modeling and Identification, Robotics, Image Based Control, Hybrid and Switching Control, Process Optimization and Scheduling, Control and Intelligent Systems. Computer and Informatics: Computer Architecture, Parallel and Distributed Computer, Pervasive Computing, Computer Network, Embedded System, Human—Computer Interaction, Virtual/Augmented Reality, Computer Security, Software Engineering (Software: Lifecycle, Management, Engineering Process, Engineering Tools and Methods), Programming (Programming Methodology and Paradigm), Data Engineering (Data and Knowledge level Modeling, Information Management (DB) practices, Knowledge Based Management System, Knowledge Discovery in Data).