Analysing the Impact of Frequency Bands on Partial Discharge Measurement Outcomes in Generators Through Model-Based Approach

Arash Abyaz; Mohammad Hamed Samimi; Amir Abbas Shayegani Akmal

doi:10.1049/hve2.70118

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Analysing the Impact of Frequency Bands on Partial Discharge Measurement Outcomes in Generators Through Model-Based Approach

更新时间：2026-05-20

- Analysing the Impact of Frequency Bands on Partial Discharge Measurement Outcomes in Generators Through Model-Based Approach
- High Voltage Vol. 11, Issue 2, (2026)
- 作者机构：
  
  High Voltage Institute, School of Electrical and Computer Engineering (ECE), College of Engineering, University of Tehran, Tehran,Iran
- 作者简介：
- 基金信息：
- DOI：10.1049/hve2.70118
  CLC：
- Published：2026
- 稿件说明：
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Arash Abyaz, Mohammad Hamed Samimi, Amir Abbas Shayegani Akmal. Analysing the Impact of Frequency Bands on Partial Discharge Measurement Outcomes in Generators Through Model-Based Approach[J]. High Voltage, 2026, 11(2).
DOI：

Arash Abyaz, Mohammad Hamed Samimi, Amir Abbas Shayegani Akmal. Analysing the Impact of Frequency Bands on Partial Discharge Measurement Outcomes in Generators Through Model-Based Approach[J]. High Voltage, 2026, 11(2). DOI： 10.1049/hve2.70118.

摘要

The electromagnetic wave produced by a partial discharge (PD) covers a broad range of frequencies

from a few kHz to several 100 MHz. Because of the nonlinear response of the stator winding

each frequency component of the PD pulse experiences different levels of attenuation as it travels through the winding structure. Consequently

the choice of frequency band for PD measurement has a significant impact on the results obtained from these measurements. The measurement frequency band

along with other complexities in PD pulse propagation

adds to the challenge of interpreting the results of PD testing. Currently

there is no universally accepted threshold for harmful activities associated with PD in generators in any reputable standard. This article investigates the influence of the measurement frequency band on the results obtained from PD testing by utilising a comprehensive finite element model of a stator winding. The research findings indicate that measuring the PD apparent charge at lower frequencies

with a relatively wide bandwidth

provides results that are more closely related to the PD charge at its source.

Abstract

The electromagnetic wave produced by a partial discharge (PD) covers a broad range of frequencies

from a few kHz to several 100 MHz. Because of the nonlinear response of the stator winding

each frequency component of the PD pulse experiences different levels of attenuation as it travels through the winding structure. Consequently

the choice of frequency band for PD measurement has a significant impact on the results obtained from these measurements. The measurement frequency band

along with other complexities in PD pulse propagation

adds to the challenge of interpreting the results of PD testing. Currently

with a relatively wide bandwidth

provides results that are more closely related to the PD charge at its source.

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